WO2020034927A1 - 一种局域网通信的管理方法及装置 - Google Patents

一种局域网通信的管理方法及装置 Download PDF

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Publication number
WO2020034927A1
WO2020034927A1 PCT/CN2019/100278 CN2019100278W WO2020034927A1 WO 2020034927 A1 WO2020034927 A1 WO 2020034927A1 CN 2019100278 W CN2019100278 W CN 2019100278W WO 2020034927 A1 WO2020034927 A1 WO 2020034927A1
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WIPO (PCT)
Prior art keywords
lan
terminal
network element
information
area information
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Application number
PCT/CN2019/100278
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English (en)
French (fr)
Inventor
朱强华
姚琦
张艳平
吴问付
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19850144.7A priority Critical patent/EP3833072B1/en
Publication of WO2020034927A1 publication Critical patent/WO2020034927A1/zh
Priority to US17/172,358 priority patent/US11917718B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a management method and device for local area network communication.
  • the 5G local area network (LAN) service is a service provided by the 5G network, and can provide terminals of the same LAN group with Internet protocol (IP) type or non-IP type private communication.
  • IP Internet protocol
  • 5G LAN services are mainly used in scenarios such as home communications, corporate office, factory manufacturing, vehicle networking, and grid transformation. Among them, the terminal can join a LAN group according to service requirements or proprietary attributes, and the terminals belonging to the LAN group can perform LAN communication.
  • the devices in a factory form a LAN group, and devices belonging to this LAN group send Ethernet data packets to each other.
  • the office equipment such as mobile phones, computers, laptops, etc.
  • the office equipment belonging to this LAN group can send IP data packets to each other.
  • 5G LAN services have regional restrictions. Terminals in a LAN group can only perform LAN communication in certain specific areas. How to manage the LAN communication of terminals in a LAN group is an urgent need to be resolved. problem.
  • the embodiments of the present application provide a management method and device for local area network communication, which are used to manage LAN communication of terminals in a LAN group.
  • an embodiment of the present application provides a method for managing local area network communication.
  • the method includes the following steps: an AMF network element obtains information about a registered area of the terminal, a local area network identifier LAN ID of the terminal, and service area information corresponding to the LAN ID; the AMF network The yuan determines the LAN communication area information of the terminal according to the registered area information and the service area information corresponding to the LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the LAN information of the terminal includes the LAN ID and the terminal's LAN communication area information.
  • the AMF network element can determine the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID. Then, the AMF network element may send the determined LAN information of the terminal to the terminal, so that the terminal can manage the LAN communication of the terminal according to the LAN information of the terminal.
  • the method further includes: the AMF network element receives the first configuration sent by the LSMF network element Parameter, the first configuration parameter includes LAN ID and service area information corresponding to the LAN ID.
  • the LSMF network element may directly send the first configuration parameter to the AMF network element for use by the AMF network element when determining the LAN information of the terminal.
  • the LSMF network element may send a second configuration parameter to the UDM network element.
  • the second configuration parameter includes the LAN ID and the terminal ID.
  • the UDM network element needs to determine the terminal's In the LAN information, the second configuration parameter may be configured to the AMF network element through a different message.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the corresponding LAN ID. There are three ways of serving area information.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the fourth contract data update notification and the fourth contract data update notification sent by the UDM network element.
  • the AMF obtains the registered area information of the terminal according to the ID of the terminal; the AMF network element obtains the LAN ID carried in the fourth contract data update notification, and obtains the service area information corresponding to the LAN ID according to the first configuration parameter ;
  • the AMF network element sends the terminal's LAN information to the terminal, specifically: the AMF network element sends a third configuration update message to the terminal, and the third configuration update message includes the terminal's LAN information.
  • the AMF network element can obtain the registration area information of the terminal, the local area network identifier LAN ID, and the LAN ID of the terminal based on the fourth contract data update notification and the first configuration parameter sent by the UDM network element when the terminal is already registered. Service area information.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the third registration request message sent by the terminal, and the third registration request message carries the terminal's ID; the AMF network element sends a fourth contract data request message to the UDM network element, the fourth contract data request message carries the ID of the terminal; the AMF network element receives the fourth contract data response message sent by the UDM network element, and the fourth contract data response The message carries the LAN ID; the AMF generates the registered area information of the terminal; the AMF network element obtains the LAN ID carried in the fourth subscription data response message, and obtains the service area information corresponding to the LAN ID according to the first configuration parameter; the AMF network element sends the Sending the LAN information of the terminal is specifically: the AMF network element sends a third registration response message to the terminal, and the third registration response message carries the LAN information of the terminal.
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when the unregistered terminal sends a third registration request message, and the AMF network element can obtain the terminal's information according to the fourth contract data response message and the first configuration parameter.
  • Registration area information, local area network identification LAN ID of the terminal, and service area information corresponding to the LAN ID can be used to trigger the operation of determining the LAN information of the terminal when the unregistered terminal sends a third registration request message.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the first PDU session management request sent by the terminal, and the first PDU session management request carries LAN ID; the AMF network element obtains the registered area information of the terminal from the context of the terminal; the AMF network element obtains the LAN ID carried in the first PDU session management request, and obtains the service area information corresponding to the LAN ID according to the first configuration parameter; The AMF network element sends the terminal's LAN information to the terminal. Specifically, the AMF network element sends a first PDU session management response to the terminal, and the first PDU session management response carries the terminal's LAN information.
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when receiving the first PDU session management request, and the AMF network element can obtain the registration of the terminal according to the first PDU session management response and the first configuration parameter.
  • the LSMF network element may send a second configuration parameter to the UDM network element.
  • the second configuration parameter includes the LAN ID and the terminal ID.
  • the UDM network element needs to determine the terminal's In the LAN information, the second configuration parameter may be configured to the AMF network element through a different message. There are three specific ways.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the first contract data update notification and the first contract data update notification sent by the UDM network element.
  • AMF obtains the registered area information of the terminal according to the terminal ID; the AMF network element sends a first request message to the LSMF network element, the first request message carries the LAN ID, and the first request message is used to request acquisition The service area information corresponding to the LAN ID; the AMF network element receives the first response message sent by the LSMF network element, and the first response message carries the service area information corresponding to the LAN ID; the AMF network element sends the terminal's LAN information to the terminal, specifically: The AMF network element sends a first configuration update message to the terminal, and the first configuration update message includes the LAN information of the terminal.
  • the AMF network element can obtain the registration area information of the terminal, the local area network identifier LAN ID, and the LAN ID of the terminal based on the first subscription data update notification and the second configuration parameter sent by the UDM network element when the terminal is registered. Service area information.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the first registration request message sent by the terminal, and the first registration request message carries the terminal's ID; the AMF network element sends a first contract data request message to the UDM network element, and the first contract data request message carries the ID of the terminal; the AMF network element receives the first contract data response message sent by the UDM network element, and the first contract data response The message carries the LAN ID; the AMF generates the registration area information of the terminal; the AMF network element sends a second request message to the LSMF network element, the second request message carries the LAN ID, and the second request message is used to request the service area corresponding to the LAN ID Information; the AMF network element receives the second response message sent by the LSMF network element, and the second response message carries the service area information corresponding to the LAN ID; the A
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when the unregistered terminal sends the first registration request message, and the AMF network element can obtain the terminal's information according to the first subscription data response message and the second configuration parameter.
  • Registration area information, local area network identification LAN ID of the terminal, and service area information corresponding to the LAN ID can be used to trigger the operation of determining the LAN information of the terminal when the unregistered terminal sends the first registration request message.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the second PDU session management request sent by the terminal, and the second PDU session management request carries LAN ID; the AMF network element obtains the registered area information of the terminal from the context of the terminal; the AMF network element sends a fourth request message to the LSMF network element, the fourth request message carries the LAN ID, and the fourth request message is used to request the acquisition of the LAN Service area information corresponding to the ID; the AMF network element receives the fourth response message sent by the LSMF network element, and the fourth response message carries the service area information corresponding to the LAN ID; the AMF network element obtains the LAN ID carried in the second PDU session management request And obtaining the service area information corresponding to the LAN ID according to the fourth response message; the AMF network element sends the terminal's LAN information to the terminal, specifically:
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when receiving the second PDU session management request, and the AMF network element can obtain the registration of the terminal according to the second PDU session management response and the second configuration parameter.
  • the LSMF network element may send a second configuration parameter to the UDM network element.
  • the second configuration parameter includes the LAN ID and the terminal ID and the service area information corresponding to the LAN ID, or the LSMF network.
  • the element can save the second configuration parameter by itself.
  • the second configuration parameter includes the LAN ID and the terminal ID and the service area information corresponding to the LAN ID.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the second contract data update notification sent by the UDM network element or the LSMF network element.
  • the contract data update notification includes the LAN ID, the service area information corresponding to the LAN ID, and the terminal ID; the AMF obtains the registered area information of the terminal according to the terminal ID carried in the second contract data update notification; the AMF network element obtains the second contract data update Notifying the carried LAN ID and the service area information corresponding to the LAN ID; the AMF network element sends the terminal's LAN information to the terminal, specifically: the AMF network element sends a second configuration update message to the terminal, and the second configuration update message includes the terminal's LAN information .
  • the AMF network element can obtain the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the corresponding LAN ID based on the second contract data update notification sent by the UDM network element or LSMF network element when the terminal is already registered. Service area information.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the second registration request message sent by the terminal, and the second registration request message carries the terminal's ID; the AMF network element sends a second contract data request message to the UDM network element or the LSMF network element, and the second contract data request message carries the ID of the terminal; the AMF network element receives the second contract data sent by the UDM network element or the LSMF network element Response message, the second contract data response message carries the LAN ID and the service area information corresponding to the LAN ID; the AMF generates the registration area information of the terminal; the AMF network element obtains the corresponding LAN ID and LAN ID carried in the second contract data response message Service area information; the AMF network element sends the terminal's LAN information to the terminal. Specifically, the AMF network element sends a second registration response message to the terminal, and the
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when the unregistered terminal sends the second registration request message, and the AMF network element can obtain the terminal's registered area information and terminal according to the second contract data response message.
  • the method further includes: the AMF network element obtaining the terminal's LAN instruction information or the terminal's LAN subscription information; wherein the LAN instruction information is carried in the second registration request message
  • the LAN contract information is obtained by the AMF network element from the UDM network element; the LAN instruction information or the LAN contract information is used to indicate that the terminal needs to use the LAN service indicated by the LAN ID.
  • the AMF network element obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID. Specifically, the AMF network element receives the third PDU session management request sent by the terminal, and the third PDU session management request carries LAN ID; the AMF network element sends a seventh contract data request message to the UDM network element or the LSMF network element, and the seventh contract data request message carries the terminal ID and the LAN ID; the AMF network element receives the UDM network element or the LSMF network element.
  • the seventh contract data response message the seventh contract data response message carries the service area information corresponding to the LAN ID; the AMF network element obtains the terminal's registered area information from the terminal context; the AMF network element obtains the third PDU session management request Carry the LAN ID and obtain the service area information corresponding to the LAN ID carried in the seventh contract data response message; the AMF network element sends the terminal's LAN information to the terminal, specifically: the AMF network element sends a third PDU session management response to the terminal
  • the third PDU session management response includes the LAN information of the terminal.
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when receiving the third PDU session management request, and the AMF network element can obtain the registration area information of the terminal and the terminal's Local area network identification LAN ID and service area information corresponding to LAN ID.
  • the method further includes: the AMF network element receives the first LAN communication request sent by the terminal, and the first LAN communication request carries a LAN ID; the AMF according to the LAN The ID and the ID of the terminal determine the LAN information of the terminal; if the location of the AMF network element is not within the LAN communication area, the SMF network element is reported to the SMF network element, so that the SMF network element processes the first LAN communication request.
  • the AMF network element can manage the LAN communication of the terminal according to the LAN information of the terminal.
  • an embodiment of the present application provides a method for managing local area network communications.
  • the method includes the following steps: an LSMF network element receives a group management request sent by a communication device; the LSMF network element obtains a terminal ID, The LAN ID of the terminal and the service area information corresponding to the LAN ID.
  • the method further includes: the LSMF network element corresponding to the service area corresponding to the LAN ID.
  • the information selects a UDM network element; the LSMF network element sends a second configuration parameter to the UDM network element, and the second configuration parameter includes a LAN ID and a terminal ID.
  • the method further includes: the LSMF network element selects the AMF network element according to the service area information corresponding to the LAN ID; The LSMF network element sends a first configuration parameter to the AMF network element, and the first configuration parameter includes LAN ID and service area information corresponding to the LAN ID.
  • the method further includes: the LSMF network element receives a third request message sent by the AMF network element, and the third request message carries a LAN ID, the third The three request messages are used to request to obtain the service area information corresponding to the LAN ID; the LSMF network element sends a third response message to the AMF network element, and the third response message carries the service area information corresponding to the LAN ID.
  • the third request message may be any one of the first request message, the second request message, and the fourth request message; the third response message may be the first response message, the second response message, and the fourth response message. Any of them.
  • the second configuration parameter further includes service area information corresponding to the LAN ID.
  • the LSMF network element after the LSMF network element obtains the terminal ID, the terminal ’s LAN ID, and the service area information corresponding to the LAN ID according to the group management request, it further includes: the LSMF network element receives the first Three contract data request messages, the third contract data request message carries the ID of the terminal, and the third contract data request message is used to request to obtain the LAN ID of the terminal and the service area information corresponding to the LAN ID; the LSMF network element sends the first The third contract data response message, and the third contract data response message carries the LAN ID and the service area information corresponding to the LAN ID.
  • the third contract data request message may be the aforementioned second contract data request message or the seventh contract data request message; the third contract data response message may be the aforementioned second contract data request message or the seventh contract data response message.
  • the method further includes: the LSMF network element sends the second to the AMF network element
  • the contract data update notification, the second contract data update notification includes the LAN ID, the service area information corresponding to the LAN ID, and the terminal ID.
  • the group management request is a group creation request.
  • the group creation request is used to request the creation of a group for LAN communication.
  • the group creation request carries the service area information corresponding to the group and the ID of the terminal. ;
  • the LSMF network element obtains the terminal ID, the terminal ’s LAN ID, and the service area information corresponding to the LAN ID according to the group management request. Specifically, the LSMF network element allocates a LAN ID to the group; the LSMF network element determines the service area corresponding to the LAN ID. The service area corresponding to the group.
  • the LSMF network element can determine the service area information corresponding to the terminal's LAN ID, LAN ID, and LAN ID through the group creation request.
  • the group management request is a first group update request.
  • the first group update request is used to request to update the group corresponding to the LAN ID.
  • the first group update request carries the LAN ID and the LAN ID.
  • the LSMF network element obtains the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID according to the group management request. Specifically, the LSMF network element determines the terminal ID according to the LAN ID; or, the group
  • the management request is a second group update request.
  • the second group update request is used to request to update the group corresponding to the LAN ID.
  • the second group update request carries the ID of the terminal and the LAN ID of the terminal; the LSMF network element is based on the group.
  • the management request acquires the ID of the terminal, the LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the LSMF network element determines the service area information corresponding to the LAN ID according to the LAN ID.
  • the LSMF network element can determine the service area information corresponding to the LAN ID, LAN ID, and LAN ID of the terminal through the group update request.
  • the communication device is any of the following: application function AF network element; operation and maintenance management OAM entity; designated terminal.
  • an embodiment of the present application further provides a method for managing local area network communications.
  • the method includes the following steps: a UDM network element receives a second configuration parameter sent by an LSMF network element, and the second configuration parameter includes a terminal ’s LAN ID and a terminal ’s ID.
  • the second configuration parameter further includes service area information corresponding to the LAN ID.
  • the method further includes:
  • the UDM network element sends a third contract data update notification to the AMF network element, and the third contract data update notification carries the second configuration parameter.
  • the third contract data update notification may be any one of the foregoing fourth contract data update notification, the first contract data update notification, or the second contract data update notification.
  • the method further includes: the UDM network element receives a third subscription data request message sent by the AMF network element, and the third subscription data request message includes Carry the ID of the terminal; the UDM network element sends a third subscription data response message to the AMF network element, and the third subscription data response message carries the LAN ID.
  • the third contract data request message may be any one of the aforementioned fourth contract data request message, the fifth contract data request message, or the first contract data request message; the third contract data response message may be the aforementioned fourth contract data Any one of a response message, a fifth subscription data response message, or a first subscription data response message.
  • the third subscription data response message also carries service area information corresponding to the LAN ID.
  • the third contract data request message may be the foregoing first contract data request message.
  • the method further includes: the UDM network element receives the eighth contract data request message sent by the AMF network element, and the eighth contract data request message The terminal ID and LAN ID are carried; the UDM network element sends an eighth contract data response message to the AMF network element.
  • the eighth subscription data response message carries service area information corresponding to the LAN ID.
  • the eighth contracted data request message may be regarded as the aforementioned seventh contracted data request message; the eighth contracted data response message may be regarded as the aforementioned seventh contracted data response message.
  • an embodiment of the present application further provides a method for managing local area network communication.
  • the method includes the following steps: The terminal receives LAN information sent by an AMF network element, and the LAN information of the terminal includes the LAN ID of the terminal and the LAN communication area information of the terminal. ; The terminal manages the LAN communication of the terminal according to the LAN information.
  • the terminal manages the local area network communication of the terminal according to the LAN information, including: when the location of the terminal in the terminal is not within the LAN communication area, prohibiting the terminal from initiating a second LAN communication request.
  • the terminal receiving the LAN information sent by the AMF network element includes: the terminal receives a first message sent by the AMF network element, the first message carries the LAN information of the terminal, the first message is a configuration update message, registration Any of a response message and a PDU session management response message.
  • the terminal can be made to manage the LAN communication of the terminal according to the LAN information of the terminal.
  • an embodiment of the present application further provides a method for managing local area network communication.
  • the method includes: LSMF network element obtaining terminal registration area information, terminal ID, terminal local area network identification LAN ID, and service area information corresponding to LAN ID. ;
  • the LSMF network element determines the LAN communication area information of the terminal according to the registration area information and the service area information corresponding to the LAN ID.
  • the LSMF network element sends the LAN information of the terminal to the AMF network element.
  • the LAN information of the terminal includes the LAN ID and the LAN communication of the terminal. Area information.
  • the AMF network element can determine the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID. Then, the AMF network element may send the determined LAN information of the terminal to the terminal, so that the terminal can manage the LAN communication of the terminal according to the LAN information of the terminal.
  • the LSMF network element obtains the terminal ID, the terminal ’s local area network identifier LAN ID, and the service area information corresponding to the LAN ID.
  • the LSMF network element receives a group creation request sent by the communication device, and the group creation The request is used to request the creation of a group for LAN communication.
  • the group creation request carries the service area information corresponding to the group and the terminal ID; the LSMF network element allocates a LAN ID for the group; the LSMF network element determines the service area corresponding to the LAN ID.
  • the service area corresponding to the group is a group creation request sent by the communication device, and the group creation The request is used to request the creation of a group for LAN communication.
  • the group creation request carries the service area information corresponding to the group and the terminal ID; the LSMF network element allocates a LAN ID for the group; the LSMF network element determines the service area corresponding to the LAN ID.
  • the service area corresponding to the group is a
  • the LSMF network element can determine the service area information corresponding to the terminal's LAN ID, LAN ID, and LAN ID through a group creation request.
  • the LSMF network element obtains the terminal ID, the terminal ’s local area network identifier LAN ID, and the service area information corresponding to the LAN ID.
  • the LSMF network element receives the first group update request sent by the communication device.
  • a group update request is used to request to update the group corresponding to the LAN ID.
  • the first group update request carries the LAN ID and the service area information corresponding to the LAN ID; the LSMF network element determines the ID of the terminal according to the LAN ID; or the LSMF network element Receive a second group update request sent by the communication device.
  • the second group update request is used to request to update the group corresponding to the LAN ID.
  • the second group update request carries the ID of the terminal and the LAN ID of the terminal; the LSMF network element is based on The LAN ID determines the service area information corresponding to the LAN ID.
  • the LSMF network element can determine the service area information corresponding to the LAN ID, LAN ID, and LAN ID of the terminal through the group update request.
  • the method further includes: the LSMF network element receives a LAN information acquisition request sent by the AMF network element
  • the LAN information acquisition request is used to request the LAN information of the terminal.
  • the LAN information acquisition request carries the LAN ID, the terminal ID, and the registered area information of the terminal;
  • the LSMF network element sends the LAN information of the terminal to the AMF network element, including: LSMF network
  • the element sends a LAN information acquisition response to the AMF network element, and the LAN information acquisition response carries the LAN information of the terminal.
  • the LSMF network element can send the terminal's LAN information to the terminal based on the request of the terminal.
  • the communication device is any of the following: an AF network element; an OAM entity; a designated terminal.
  • an embodiment of the present application provides a method for managing local area network communication.
  • the method includes the following steps: an AMF network element receives the LAN information of the terminal sent by the LSMF network element, and the LAN information of the terminal includes the LAN ID of the terminal and the LAN of the terminal; Communication area information; the AMF network element sends the terminal's LAN information to the terminal.
  • the AMF network element can send the terminal's LAN information to the terminal, so that the terminal can manage the terminal's LAN communication according to the terminal's LAN information.
  • the method further includes: the AMF network element sends a LAN information acquisition request to the LSMF network element, and the LAN information acquisition request is used to request the acquisition of the terminal's
  • the LAN information the LAN information acquisition request carries the LAN ID, the terminal ID, and the registration area information of the terminal;
  • the AMF network element receives the LAN information of the terminal sent by the LSMF network element, including: the AMF network element receives the LAN information obtained by the LSMF network element In response, the LAN information acquisition response carries the LAN information of the terminal.
  • the AMF network element when the AMF network element needs to send the terminal's LAN information to the terminal, it requests the AMF network element for the terminal's LAN information.
  • the AMF network element may trigger an operation of obtaining the LAN information of the terminal in different situations, and then request the LSMF network element to obtain the LAN information of the terminal.
  • the AMF network element Before the AMF network element sends a LAN information acquisition request to the LSMF network element, it also includes: the AMF network element receives the contract data update notification sent by the LSMF network element, and the contract data update notification includes the LAN ID and the terminal ID; the AMF network element determines that the terminal has Register in the group corresponding to the LAN ID; the AMF network element sends the terminal's LAN information to the terminal. Specifically, the AMF network element sends a configuration update message to the terminal, and the configuration update message carries the terminal's LAN information.
  • the AMF network element may determine that the terminal is registered when receiving the contract data update notification, and then request the LSMF network element to obtain the LAN information of the terminal, and send the LAN information of the terminal to the terminal through the configuration update message.
  • the method further includes: the AMF network element receives the registration request message sent by the terminal, the registration request message carries the LAN instruction information of the terminal or the terminal's LAN contract information, and the registration request message It also carries the terminal ID, LAN indication information or LAN contract information to indicate that the terminal needs to use the LAN service indicated by the LAN ID; the AMF network element sends the LAN information of the terminal to the terminal, specifically: the AMF network element sends a registration to the terminal Response message, the registration response message carries the LAN information of the terminal.
  • the AMF network element may request the LSMF network element to obtain the LAN information of the terminal when the registration request message sent by the terminal is received, and send the LAN information of the terminal to the terminal through the registration response message.
  • the method further includes: the AMF network element receives the PDU session management request sent by the terminal, and the PDU session management request carries the LAN ID; the AMF network element determines the terminal's ID; the AMF network element sends the terminal's LAN information to the terminal. Specifically, the AMF network element sends a PDU session management response message to the terminal, and the PDU session management response message carries the LAN information of the terminal.
  • the AMF network element when receiving the PDU session management request sent by the terminal, the AMF network element requests the LSMF network element to obtain the LAN information of the terminal, and sends the LAN information of the terminal to the terminal through the PDU session management response message.
  • the method further includes: the AMF network element receives the first LAN communication request sent by the terminal, and the first LAN communication request carries a LAN ID; the AMF according to the LAN The ID and the ID of the terminal determine the LAN information of the terminal; if the location of the AMF network element is not within the LAN communication area, the SMF network element is reported to the SMF network element, so that the SMF network element processes the first LAN communication request.
  • the AMF network element can manage the LAN communication of the terminal according to the LAN information of the terminal.
  • an embodiment of the present application provides a method for managing local area network communication.
  • the method includes: the terminal receives LAN information sent by an AMF network element, and the LAN information of the terminal includes the LAN ID of the terminal and the LAN communication area information of the terminal; The LAN information manages the LAN communication of the terminal.
  • the terminal can be made to manage the LAN communication of the terminal according to the LAN information of the terminal.
  • the terminal manages the LAN communication of the terminal according to the LAN information, including: when the location of the terminal in the terminal is not within the LAN communication area, prohibiting the terminal from initiating a second LAN communication request.
  • the terminal receiving the LAN information sent by the AMF network element includes: the terminal receives a first message sent by the AMF network element, the first message carries the LAN information of the terminal, the first message is a configuration update message, registration Any of a response message and a PDU session management response message.
  • an embodiment of the present application provides a management device for local area network communication, including: a processing unit configured to obtain terminal registration area information, the terminal's local area network identifier LAN ID, and service area information corresponding to the LAN ID; the processing unit, further It is used to determine the LAN communication area information of the terminal according to the registered area information and the service area information corresponding to the LAN ID.
  • the sending unit is used to send the LAN information of the terminal to the terminal.
  • the LAN information of the terminal includes the LAN ID and the LAN communication area information of the terminal. .
  • management device for local area network communication provided in the eighth aspect may be used to execute the method corresponding to the first aspect.
  • implementation methods that are not described in detail in the management device for local area network communication provided in the eighth aspect refer to the foregoing embodiments. More details.
  • an embodiment of the present application provides a management device for local area network communication, including: a receiving unit configured to receive a group management request sent by a communication device; a processing unit configured to obtain a terminal ID, The LAN ID of the terminal and the service area information corresponding to the LAN ID.
  • management device for local area network communication provided in the ninth aspect may be used to execute the method corresponding to the second aspect.
  • implementation methods not described in detail in the management device for local area network communication provided in the ninth aspect refer to the foregoing embodiments, which are not described here. More details.
  • an embodiment of the present application provides a management device for local area network communication, including: a receiving unit configured to receive a second configuration parameter sent by an LSMF network element, where the second configuration parameter includes a LAN ID of the terminal and an ID of the terminal.
  • the management device for local area network communication provided in the tenth aspect may be used to execute the method corresponding to the third aspect.
  • the management device for local area network communication provided in the tenth aspect may be used to execute the method corresponding to the third aspect.
  • an embodiment of the present application further provides a management device for local area network communication, which includes: a receiving unit configured to receive LAN information sent by an AMF network element, and the LAN information of the terminal includes a LAN ID of the terminal and a terminal. LAN communication area information; a processing unit configured to manage the LAN communication of the terminal according to the LAN information.
  • management device for local area network communication provided in the eleventh aspect may be used to execute the method corresponding to the fourth aspect.
  • implementation methods not described in detail in the management device for local area network communication provided in the eleventh aspect refer to the foregoing embodiments. I will not repeat them here.
  • an embodiment of the present application further provides a management device for local area network communication, including: a processing unit, configured to obtain terminal registration area information, a terminal ID, a terminal's local area network identifier LAN ID, and a service area corresponding to the LAN ID. Information; the processing unit is further configured to determine the LAN communication area information of the terminal according to the registration area information and the service area information corresponding to the LAN ID; the sending unit is used to send the LAN information of the terminal to the AMF network element, and the LAN information of the terminal includes the LAN ID and LAN communication area information of the terminal.
  • the management device for local area network communication provided in the twelfth aspect may be used to execute the method corresponding to the fifth aspect.
  • the management device for local area network communication provided in the twelfth aspect may be used to execute the method corresponding to the fifth aspect.
  • an embodiment of the present application further provides a management device for local area network communication, including: a receiving unit configured to receive LAN information of a terminal sent by an LSMF network element, and the LAN information of the terminal includes a LAN ID of the terminal and a LAN of the terminal. Communication area information; a sending unit, configured to send the terminal's LAN information to the terminal.
  • management device for local area network communication provided in the thirteenth aspect may be used to execute the method corresponding to the sixth aspect.
  • implementation methods not described in detail in the management device for local area network communication provided in the thirteenth aspect refer to the foregoing embodiments. I will not repeat them here.
  • an embodiment of the present application further provides a management device for local area network communication, which is characterized in that it includes: a receiving unit configured to receive LAN information sent by an AMF network element, and the LAN information of the terminal includes the LAN ID of the terminal and the terminal. LAN communication area information; a processing unit configured to manage the LAN communication of the terminal according to the LAN information.
  • management device for local area network communication provided in the fourteenth aspect may be used to execute the method corresponding to the seventh aspect.
  • implementation methods not described in detail in the management device for local area network communication provided in the fourteenth aspect refer to the foregoing embodiments. I will not repeat them here.
  • an embodiment of the present application further provides a management device for local area network communication.
  • the structure of the device includes a processor and a memory.
  • the processor is configured to support the terminal to execute the first aspect to the first Corresponding functions in the method provided in the seventh aspect and any one of the designs from the first aspect to the seventh aspect.
  • the memory is coupled to the processor and stores program instructions and data necessary for the device.
  • the structure of the device further includes a communication interface for communicating with other devices.
  • the implementation of the present application further provides a communication system, where the communication system includes an AMF network element and an LSMF network element.
  • the LSMF network element is configured to receive a group management request sent by a communication device; and obtain a terminal ID, a terminal's LAN ID, and service area information corresponding to the LAN ID according to the group management request.
  • the LSMF network element is also used to send a subscription data update notification to the AMF network element for the registered terminal, which carries the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID.
  • the AMF network element is used to determine the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID; and send the LAN information of the terminal to the terminal.
  • the LAN information of the terminal includes LAN ID and LAN communication area information of the terminal.
  • the terminal manages the LAN communication of the terminal according to the LAN information.
  • the LSMF network element is configured to receive a group management request sent by a communication device; and obtain a terminal ID, a terminal's LAN ID, and service area information corresponding to the LAN ID according to the group management request.
  • the AMF network element is used to send a subscription data request message to the LSMF network element when the terminal sends a registration request message, which carries the ID of the terminal.
  • the LSMF network element is also used to send a subscription data response message to the AMF network element, which carries the terminal's LAN ID and service area information corresponding to the LAN ID.
  • the AMF network element is also used to determine the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID; and send the LAN information of the terminal to the terminal.
  • the LAN information of the terminal includes LAN ID and LAN communication area information of the terminal.
  • the terminal manages the LAN communication of the terminal according to the LAN information.
  • the present application also provides a computer-readable storage medium, where the computer-readable storage medium stores instructions, and when the computer-readable storage medium runs on the computer, causes the computer to execute the methods described in the above aspects.
  • the present application also provides a computer program product containing instructions that, when run on a computer, causes the computer to perform the methods described in the above aspects.
  • the present application also provides a computer chip, the chip is connected to a memory, and the chip is configured to read and execute a software program stored in the memory and execute the methods described in the foregoing aspects.
  • FIG. 1 is a schematic structural diagram of a network architecture according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of another network architecture according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a LAN communication area of a terminal according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a first management method for local area network communication according to an embodiment of the present application
  • FIG. 5 is a schematic flowchart of a second management method for local area network communication according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a third management method for local area network communication according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a fourth management method for local area network communication according to an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a fifth management method for local area network communication according to an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a sixth management method for local area network communication according to an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a seventh management method for local area network communication according to an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of an eighth LAN communication management method according to an embodiment of the present application.
  • FIG. 12 is a schematic flowchart of a ninth local area network communication management method according to an embodiment of the present application.
  • FIG. 13 is a schematic flowchart of a tenth local area network communication management method according to an embodiment of the present application.
  • FIG. 14 is a schematic flowchart of an eleventh management method for local area network communication according to an embodiment of the present application.
  • 15 is a schematic structural diagram of a first management method for local area network communication according to an embodiment of the present application.
  • 16 is a schematic structural diagram of a second management method for local area network communication according to an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a third management method for local area network communication according to an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a fourth management method for local area network communication according to an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a fifth management method for local area network communication according to an embodiment of the present application.
  • 20 is a schematic structural diagram of a sixth management method for local area network communication according to an embodiment of the present application.
  • 21 is a schematic structural diagram of a seventh management method for local area network communication according to an embodiment of the present application.
  • FIG. 22 is a schematic structural diagram of an eighth local area network communication management method according to an embodiment of the present application.
  • FIG. 23 is a schematic structural diagram of a ninth local area network communication management method according to an embodiment of the present application.
  • FIG. 24 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • the network architecture is a 5G network architecture.
  • the network elements in the network architecture include a terminal, an access network (AN), a core network (Core), and a data network (DN).
  • the access network may be a radio access network (RAN).
  • terminals, AN, and Core are the main parts that constitute the network architecture.
  • the control plane is responsible for the management of the mobile network, and the user plane is responsible for the transmission of business data.
  • the NG2 reference point is located between the RAN control plane and the Core control plane
  • the NG3 reference point is located between the RAN user plane and the Core user plane
  • the NG6 reference point is located between the Core user plane and the DN. between.
  • the terminal is a device with wireless transceiver functions and is the entry point for mobile users to interact with the network. It can provide basic computing and storage capabilities, and display business windows to users and accept users. Operation input.
  • the terminal will use the new air interface technology to establish a signal connection and data connection with the AN, so as to transmit control signals and service data to the network.
  • the terminal can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as a ship, etc.); and it can also be deployed in the air (such as on an airplane, a balloon, or a satellite).
  • the terminal may be a mobile phone, a tablet, a computer with a wireless transmitting and receiving function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, or an industrial control.
  • AN is similar to a base station in a traditional communication network. It is deployed close to the terminal and provides network access functions for authorized users in a specific area. It can be different according to the user's level and service requirements. Quality transmission tunnel to transmit user data. AN can manage and reasonably utilize its own resources, provide access services to terminals as needed, and be responsible for forwarding control signals and business data between the terminal and the Core.
  • Core is responsible for maintaining mobile network subscription data, managing network elements of the mobile network, and providing functions such as session management, mobility management, policy management, and security authentication for the terminal. For example, when the terminal is attached, provide the terminal with network access authentication; when the terminal has a service request, allocate network resources for the terminal; when the terminal moves, update the network resource for the terminal; when the terminal is idle, provide fast recovery for the terminal Mechanism; release network resources for the terminal when the terminal is detached; provide data routing functions for the terminal when the terminal has service data, such as forwarding uplink data to the DN, or receiving downlink data from the DN and forwarding to the AN.
  • service data such as forwarding uplink data to the DN, or receiving downlink data from the DN and forwarding to the AN.
  • DN is a data network that provides business services to users.
  • the client is usually located at the terminal, and the server is usually located at the DN.
  • the DN can be a private network, such as a local area network, or an external network that is not controlled by the operator, such as the Internet. It can also be a private network jointly deployed by the operator, such as providing an IP multimedia network subsystem (IP multimedia network subsystem). IMS) services.
  • IP multimedia network subsystem IP multimedia network subsystem
  • the network architecture is a 5G network architecture.
  • the network elements in the 5G architecture include a terminal, a radio access network (RAN), and a data network (DN).
  • a terminal is a user equipment (UE).
  • the network architecture also includes core network element, which includes user plane function (UPF) network element and control plane function network element.
  • the control plane function network element includes, but is not limited to, an access and mobility management function (AMF) network element, a session management function (SMF) network element, and an authentication server function.
  • AMF access and mobility management function
  • SMF session management function
  • AUSF application function
  • AF application function
  • UDM unified data management
  • PCF policy control function
  • NEF network open function network element
  • NEF network element
  • NRF network slice selection function
  • control plane function network element may further include a LAN service management function network element (LAN service management function (LSMF)).
  • LSMF LAN service management function
  • the LSMF network element can be used as an independent physical function entity or as a logical function entity deployed in other network elements (such as NEF network element, PCF network element, and UDM network element).
  • control plane function network elements that is, the interface communication between control plane function network elements uses a specific set of messages
  • control plane function network at both ends of the interface Meta can only communicate using this specific set of messages.
  • control plane adopts a service-oriented architecture, that is, the interaction between control plane function network elements uses a service call method.
  • the control plane function network element will open services to other control plane function network elements for other control. Area function network element call.
  • each network element in the network architecture shown in FIG. 2 is described in detail below. Since the functions of the UE, RAN, and DN have already been described in the related description of the network architecture shown in FIG. 1, the functions of each core network element are mainly introduced below.
  • the UPF network element is a functional network element of the user plane and is mainly responsible for connecting to an external network.
  • the UPF network element includes a long-term evolution (LTE) serving gateway (SGW) and a packet data network gateway (packet data network gateway). PDN-GW).
  • LTE long-term evolution
  • SGW serving gateway
  • PDN-GW packet data network gateway
  • the UDF can perform user data packet forwarding according to the routing rules of the SMF, such as uplink data is sent to a DN or other UPF; downlink data is forwarded to other UPF or RAN.
  • the AMF network element is responsible for the access management and mobility management of the UE, for example, responsible for the state maintenance of the UE, the reachability management of the UE, and the non-mobility management access layer (mobility management non-access-stratum (MM NAS) message). Forwarding, session management (SM) N2 message forwarding.
  • the AMF network element can implement the mobility management function in the MME in the LTE network framework, and can also implement the access management function.
  • the SMF network element is responsible for session management, and allocates and releases resources for the UE's session.
  • the resources include session quality of service (QoS), session path, and forwarding rules.
  • the AUSF network element is used to perform security authentication of the UE.
  • the AF network element may be a third-party application control platform or an operator's own device, and the AF network element may provide services for multiple application servers.
  • the UDM network element may store subscription information of the UE.
  • the PCF network element is used for user policy management. Similar to the policy and charging rule function (PCRF) network element in LTE, the PCF network element is mainly responsible for policy authorization, quality of service, and generation of charging rules. Send the corresponding rules to the UPF network element through the SMF network element to complete the installation of the corresponding policies and rules.
  • PCF policy and charging rule function
  • the NEF network element is used to open a network function to a third party in a northbound application programming interface (API) manner.
  • API application programming interface
  • the NRF network element is used to provide storage and selection functions of network function entity information for other network elements.
  • the NSSF network element is used to select a network slice for the UE.
  • the network architecture shown in FIG. 2 may further include an LSMF network element.
  • the LSMF network element is used for LAN service area management. Specifically, when a LAN group is defined, the service area of the group is configured in the LSMF; or when the LAN group is updated, the service area of the group is updated in the LSMF network element.
  • the service area information stored in the LSMF can be sent to other network elements (for example, AMF network elements or UDM network elements), and other network elements can manage the LAN communications of the UEs in the group according to the service area information.
  • the network elements related to this application mainly include: UE, AMF, UDM, LSMF, NEF, and AF.
  • LAN ID Local area network identification
  • LAN ID can be understood as the identity of a LAN group. That is, LAN ID can be used to identify a LAN group or a specific LAN service. Terminals identified by the same LAN ID belong to the same LAN group, and a LAN service corresponding to the LAN ID can be used, that is, LAN communication can be performed between the terminals identified by the same LAN ID.
  • the LAN ID can be a special domain name (such as DNN), a character string, an internal group identifier, an external group identifier, or a serial number.
  • the LAN ID can also adopt some special formats, for example, the LAN ID can also include provider information, operator information, network information, domain information, and so on.
  • the embodiment of the present application also relates to the concept of “LAN ID of the terminal”.
  • the terminal can belong to one or more LAN groups or LAN services.
  • the terminal can also subscribe to one or more LAN groups or LAN services.
  • the LAN ID of any LAN group or LAN service to which the terminal is subscribed may be understood as the LAN ID of the terminal.
  • the terminal may also be associated with or correspond to one or more LAN groups or LAN services.
  • the LAN ID associated with or corresponding to any LAN group or LAN service of the terminal can be understood as the LAN ID of the terminal.
  • LAN services are area limited. For example, if the office equipment of an enterprise employee forms a LAN group, the LAN can only provide LAN services for office equipment in the LAN group in the office area of the enterprise (that is, office equipment in the LAN group can only LAN communication is performed in the office area of an enterprise). If the office equipment of an employee is not in the office area, the LAN no longer provides LAN services for the office equipment.
  • the devices in the factory form a LAN group. The LAN can only provide LAN services for the devices in the LAN group in the factory building (that is, the devices in the LAN group can only perform LAN communication in the factory building. ), If the device is not in the plant, the LAN no longer provides LAN services for the device. When the device is moved to the plant again, the LAN can provide LAN services for the device.
  • the above-mentioned area that can provide LAN services for the terminals in the LAN group can be understood as the service area of the LAN group. Since the LAN group can be identified by the LAN ID, the service area of the LAN group can also be called the service area corresponding to the LAN ID. In the embodiment of the present application, the information indicating the service area corresponding to the LAN ID is referred to as the service area information corresponding to the LAN ID.
  • the service area information corresponding to the LAN ID is a concept of LAN granularity, that is, the service area information corresponding to the LAN ID is applicable to all terminals in the LAN group identified by the LAN ID.
  • the service area information corresponding to the ID is only related to the LAN group, and may not be related to the configuration information of the terminals included in the LAN group.
  • the LAN can provide LAN services for the terminals in the LAN group in the service area corresponding to the LAN ID; however, for a terminal, if the terminal is located in the service area corresponding to the LAN ID, it does not mean that the terminal must be able to communicate with the LAN group.
  • the other terminals in the LAN communicate with each other. Whether the terminal can communicate with other terminals in the LAN group is also related to the terminal ’s contract data and other configuration information (such as the registration area of the terminal). The related content will be described later. I won't repeat them here.
  • the service area information corresponding to the LAN ID includes, but is not limited to, three types of representations: tracking area identification list (TA list) (also called TAL), cell list, and geographic location information. .
  • TA list also called TAL
  • cell list also called TAL
  • geographic location information may also be converted into a TA list or a cell list representation.
  • the service area corresponding to the LAN ID may be composed of N tracking areas, N ⁇ 1.
  • the service area information corresponding to the LAN ID may be represented by a TAlist including N tracking area identifiers.
  • the AMF network element allocates a TAL to the terminal.
  • the TAL includes a set of tracking area identifiers. This group of tracking areas can be regarded as the registration area of the terminal.
  • factors to consider include, but are not limited to: a mobile mode (such as the terminal's mobility statistics), mobility restrictions (such as an area where access is prohibited), and the current location of the terminal.
  • the registration area of the terminal can be understood as the area where the terminal can establish a signaling connection with the network: When the terminal is idle and the network has data and signaling to send to the terminal, if the terminal is located in the registration area, the network can page the terminal To make the terminal reachable (the network sends paging signaling on all base stations in the registration area).
  • the network may send paging signaling to the terminal within the registration area of the terminal. If the terminal is located in the registration area at this time, the terminal establishes a signaling connection with the network, and the terminal transitions to the connected state. If the terminal moves outside the registration area, the network cannot page the terminal, and therefore cannot establish a connection between the terminal and the network. Signaling connection.
  • the registration area information of the terminal can be generated through the registration process initiated by the terminal: After receiving the registration request message (carrying the terminal ID) sent by the terminal, the AMF network element dynamically generates the registration area information of the terminal, and uses the terminal ID and the The registered area information of the terminal is correspondingly stored in the local context, and other network elements in the core network may query the AMF for the registered area information of the terminal according to the ID of the terminal.
  • the AMF network element can generate a local context for the terminal.
  • the local context of the terminal includes not only the ID of the terminal and the registration area information of the terminal, but also other information. Since the registration process of the terminal is the prior art, and in order to implement the embodiments of the present application, it is necessary to obtain the terminal ID and the registration area information of the terminal from the local context. Therefore, the embodiment does not include other information included in the local context. More details.
  • the registration area of the terminal may be composed of M tracking areas, M ⁇ 1.
  • the registered area information of the terminal may be represented by a TA list containing M tracking area identifiers.
  • the restriction information corresponding to the LAN ID can be understood as restriction information on LAN communication performed by all terminals in the LAN group identified by the LAN ID.
  • the restriction information corresponding to the LAN ID may consist of one or more of information on prohibited communication areas and information on restricted communication areas.
  • the communication prohibited area information is used to indicate an area where LAN communication is prohibited, and all terminals in the LAN group are not allowed to perform any type of communication in the area;
  • the restricted communication area information is used to indicate an area where LAN communication is restricted, the LAN group All terminals in the group are allowed to perform only certain types of communication in the area, for example, only terminals are allowed to respond to paging signaling in the area.
  • restriction information corresponding to the LAN ID may also include available public land mobile network (PLMN) information, prohibited PLMN information, available radio access technology (RAT) information, and prohibited RATs.
  • PLMN public land mobile network
  • RAT available radio access technology
  • the available PLMN information is used to indicate the PLMN identity that can be used for LAN communication in the LAN group.
  • the terminals in the LAN group only when the PLMN identity of the terminal is the same as the PLMN identity indicated by available PLMN information The terminal can only perform LAN communication; the prohibited PLMN information is used to indicate that the LAN group cannot perform LAN communication.
  • the PLMN identification of the terminal and the prohibited PLMN information When the indicated PLMN identifiers are the same, the terminal cannot perform LAN communication.
  • prohibited RAT information available access type information, prohibited access type information, available core type information, prohibited core type information
  • available PLMN information available PLMN information
  • prohibited core type information please refer to the above-mentioned information about available PLMN information and prohibited PLMN information. Related explanations are not repeated here.
  • the restriction information corresponding to the LAN ID can be understood as a supplement to the service area information corresponding to the LAN ID.
  • the LAN can provide LAN services for the terminal, only if the terminal meets the conditions applicable to LAN communication indicated by the restriction information corresponding to the LAN ID. Only LAN can provide LAN service for this terminal.
  • a terminal in the LAN group identified by the LAN ID is located in the service area corresponding to the LAN ID.
  • the restriction information corresponding to the LAN ID contains prohibited PLMN information (such as PLMNA), and the PLMN ID corresponding to the terminal is PLMN.
  • PLMN PLMN ID
  • the LAN can provide LAN services for the terminal.
  • a terminal in the LAN group identified by the LAN ID is in the service area corresponding to the LAN ID, and the restriction information corresponding to the LAN ID contains available Access Type information (such as Access Type C), and the access of the terminal The type is Access Type D.
  • Access Type C Access Type information
  • Access Type D Access Type D
  • the restriction information corresponding to the LAN ID is a concept of LAN granularity.
  • the restriction information corresponding to the LAN ID is applicable to all terminals in the LAN group identified by the LAN ID, that is, the LAN ID corresponds to
  • the restriction information is only related to the LAN group, and has nothing to do with the configuration information of the terminals included in the LAN group.
  • the restriction information of the terminal can be understood as the restriction information of the terminal for LAN communication.
  • the restriction information of the terminal may be composed of one or more of prohibited communication area information, permitted communication area information, and restricted communication area information.
  • the communication prohibited area information is used to indicate an area where the terminal is prohibited from performing LAN communication
  • the communication permitted area information is used to indicate an area where the terminal is allowed to perform LAN communication
  • the communication restricted area information is used to indicate that the terminal is restricted from performing LAN communication Area, the terminal is allowed to perform only a specific type of communication within the area, for example, only the terminal is allowed to respond to paging signaling within the area.
  • the terminal's restriction information can also include available PLMN information, prohibited PLMN information, available RAT information, prohibited RAT information, available access type information, prohibited access type information, and available core network.
  • available PLMN information prohibited PLMN information
  • available RAT information prohibited RAT information
  • available access type information available access type information
  • prohibited access type information available core network.
  • One or more types of type (Core Type) information and prohibited Core Type information are prohibited.
  • the available PLMN information is used to indicate the PLMN identification that can be used for LAN communication.
  • the terminal can only perform LAN communication if the terminal's PLMN identification is the same as the PLMN identification indicated by the available PLMN information; prohibited PLMN information A PLMN identifier used to indicate that LAN communication cannot be performed. If the terminal's PLMN identifier is the same as the PLMN identifier indicated by the prohibited PLMN information, the terminal cannot perform LAN communication.
  • prohibited RAT information available access type information, prohibited access type information, available core type information, prohibited core type information
  • available PLMN information available PLMN information
  • prohibited core type information please refer to the above-mentioned information about available PLMN information and prohibited PLMN information. Related explanations are not repeated here.
  • the LAN can provide LAN services for the terminals in the LAN group within the service area corresponding to the LAN ID; however, for a terminal, if the terminal is located in the service area corresponding to the LAN ID, it does not necessarily mean that the terminal Can communicate with other terminals in the LAN group. Whether the terminal can communicate with other terminals in the LAN group is also related to the registration area of the terminal. If the terminal is located in the service area corresponding to the LAN ID, but The terminal is not located in the registration area of the terminal, and the terminal cannot perform LAN communication with other terminals in the LAN group.
  • the restriction information of the terminal is a concept of UE granularity.
  • the restriction information of the terminal is only applicable to the terminal, that is, the restriction information of the terminal is applied to other terminals in the LAN group to which the terminal belongs. Not applicable.
  • the conditions for the terminal to communicate with other terminals in the LAN group to which it belongs include at least: the terminal is located in the service area corresponding to the LAN group ID (LAN ID), and the terminal is located in the terminal Within the registration area. That is, when the terminal is located at the intersection of the service area corresponding to the LAN ID and the registration area of the terminal, the terminal can perform LAN communication with other terminals in the LAN group to which it belongs.
  • the indication information of the cross area is referred to as the LAN communication area information of the terminal. That is, the terminal's LAN communication area information can be understood as the intersection of the service area information corresponding to the LAN ID and the terminal's registered area information.
  • the LAN communication area information of the terminal can be understood as the intersection of the service area information corresponding to the LAN ID, the registered area information of the terminal, and the permitted communication area information of the terminal.
  • the LAN communication area information of the terminal is used to indicate an area in which the terminal can perform LAN communication with other terminals in the LAN group to which the terminal belongs.
  • the LAN communication area information is an expression used in the embodiments of the present application, and it can also be replaced by other expressions, as long as the expression is used to indicate that the terminal can perform LAN communication with other terminals in the LAN group to which it belongs. Area.
  • the terminal's LAN communication area information can be replaced by the following expressions: the terminal's LAN service area information, the terminal's corresponding LAN service area information, the terminal's related LAN service area information, the terminal's associated LAN service area information, and the terminal's LAN Available area information, LAN available area information corresponding to the terminal, LAN available area information related to the terminal, LAN available area information associated with the terminal; terminal service area information of the LAN, terminal service area information corresponding to the LAN, terminal service area information related to the LAN , LAN-related terminal service area information; LAN terminal available area information, LAN corresponding terminal available area information, LAN related terminal available area information, and LAN related terminal available area information.
  • the registration area of the terminal is A
  • the service area corresponding to the ID of the LAN group to which the terminal belongs ie, LAN ID
  • the LAN communication area of the terminal may be area C.
  • the terminal's LAN communication area information includes, but is not limited to, three representations: TA list, cell list, and geographic location information.
  • the geographic location information may also be converted into a TA list or a cell list representation.
  • the LAN communication area of the terminal may be composed of P tracking areas, P ⁇ 1.
  • the terminal's LAN communication area information may be represented by a TA list containing P tracking area identifiers.
  • the LAN communication area of the terminal may consist of Q cells, Q ⁇ 1.
  • the LAN communication area information of the terminal may be represented by a cell list including Q cell identifiers.
  • the LAN information includes the LAN ID and the LAN communication area information of the terminal, and the LAN information may be used to manage the LAN communication of the terminal.
  • a terminal or a network for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element
  • the LAN communication area information of the terminal can be understood as the intersection of the service area information corresponding to the LAN ID and the registered area information of the terminal. If the restricted information of the terminal includes information on the permitted communication area, the LAN communication area information of the terminal can be understood as the intersection of the service area information corresponding to the LAN ID, the registered area information of the terminal, and the permitted communication area information of the terminal. In particular, in a case where the restriction information of the terminal includes information on a communication permitted area, the LAN communication area information of the terminal may also be referred to as service restriction information of the terminal.
  • the terminal may manage the LAN communication of the terminal according to the LAN information of the terminal.
  • the terminal Before the terminal initiates a LAN communication request, the terminal may obtain the bound LAN ID according to the URSP (Terminal Routing Policy) and check the terminal. Location; the terminal checks whether the terminal is in the LAN communication area according to the LAN ID and the location of the terminal. If it is, the terminal can initiate a LAN communication request (such as a session establishment / modification request) and then send data; if not, the terminal cannot initiate a LAN communication request.
  • URSP Terminal Routing Policy
  • a network may also manage the local area network communication of the terminal based on the terminal's LAN information.
  • the AMF network element manages the terminal's local area network communication according to the terminal's LAN information.
  • the specific implementation method can be: After the AMF network element receives a LAN communication request (such as a session establishment / modification request) sent by the terminal , Will check the location of the terminal, and find the LAN information of the terminal according to the LAN ID of the session signaling and the ID of the terminal.
  • the AMF will notify the SMF network element, and the SMF network element will deal with it accordingly: , The SMF network element will refuse to establish a session / modify the session for the terminal; for another example, if the SMF network element has already established a session session for the terminal when receiving the notification from the AMF network element, the SMF network element can also deactivate or release the related session .
  • the manner in which other network elements manage the terminal's local area network communication based on the terminal's LAN information is similar to the manner in which the AMF network element manages the terminal's local area network communication based on the terminal's LAN information, and will not be repeated here.
  • the restriction information corresponding to the LAN ID and the restriction information of the terminal may also be considered.
  • the LAN information of the terminal may further include restriction information corresponding to the LAN ID and restriction information of the terminal.
  • the terminal manages the LAN communication of the terminal according to the LAN information of the terminal, it is also necessary to consider the restriction information corresponding to the LAN ID and the restriction information of the terminal.
  • the terminal can initiate LAN communication only when the terminal meets the conditions for LAN communication indicated by these restriction information.
  • a network such as an AMF network element, an SMF network element, a UDM network element, or an LSMF network element
  • a network may allow the terminal to initiate a LAN communication only when the terminal meets the conditions for LAN communication indicated by the restriction information.
  • the LAN information of the terminal includes, in addition to the LAN ID and the LAN communication area information of the terminal, restriction information corresponding to the LAN ID.
  • the restriction information corresponding to the LAN ID includes information on a prohibited communication area. Then, when the terminal manages the LAN communication of the terminal according to the LAN information of the terminal, if the terminal is located in the communication prohibited area indicated in the restriction information corresponding to the LAN ID, the terminal will be prohibited from initiating a LAN communication request.
  • LAN communication can be performed between terminals belonging to the same LAN group.
  • the related information of the LAN group (such as the service area of the LAN group, the LAN ID of the LAN group, the ID of the terminal belonging to the LAN group, the restriction information corresponding to the LAN ID, etc.) can be passed through the group creation / update process. Configure it.
  • the communication device may send a group creation request to a network element for group management (hereinafter referred to as a "group management network element", which may be, for example, an LSMF network element or an NEF network element).
  • group management network element which may be, for example, an LSMF network element or an NEF network element.
  • the group creation request carries the service area information corresponding to the requested LAN group and the IDs of all terminals belonging to the LAN group; the group management network element can assign the LAN group after receiving the group creation request A LAN ID. So far, the LAN group is successfully created, and the service area information corresponding to the LAN ID is the service area information carried in the group creation request.
  • the group update process can be divided into two types: the first is used to update the service area information of the LAN group.
  • the communication device can notify the group management network element through the group update process;
  • the second type is used to update the members of the LAN group (that is, the terminals included in the LAN group).
  • the communication device can notify the group management network element through the group update request, such as The terminal joins the LAN group.
  • the first type of group update process may be as follows: the group management network element receives the group update request sent by the communication device, and the group update request carries the LAN ID and the service area information corresponding to the LAN ID; the group management network element is in After receiving the group update request, the service area information of the LAN group identified by the LAN ID can be updated.
  • the second type of group update process may be as follows: the group management network element receives the group update request sent by the communication device, and the group update request carries the LAN ID and the terminal ID; the group management network element receives the group After the update request, the terminal corresponding to the UE ID can be added to the LAN group indicated by the LAN ID.
  • the group update request received by the group management network element may also be a group update request for instructing deletion of a group member corresponding to the LAN ID.
  • the group management network element may notify the AMF network element after receiving the group update request for instructing deletion of a terminal.
  • the AMF network element learns that the terminal has been deleted from the LAN group identified by the LAN ID, it can delete (or leave it blank) the LAN information related to the terminal and the LAN ID, and notify the terminal to delete the LAN related to the LAN ID. Information deleted (or left blank). The terminal can no longer communicate with the terminal in the LAN group identified by the LAN ID.
  • the communication device can also implement the above two types of updates through a group update process.
  • the group management network element receives a group update request sent by the communication device, and the group update request carries the LAN ID, the service area information corresponding to the LAN ID, and the terminal ID; the group management network element is receiving the group After the group update request, the terminal corresponding to the UE ID can be added to the LAN group indicated by the LAN ID, and the service area information of the LAN group identified by the LAN ID can be updated at the same time.
  • the communication device may request the group management network element to create a LAN group or request to update the LAN group, thereby implementing the creation and update of the LAN group.
  • the communication device may be an AF network element, may be an operation and maintenance (OAM) entity, or may be a terminal for creating / updating a group.
  • OAM operation and maintenance
  • the AF network element can be deployed by users in vertical industries, for example, it can be an application server outside the 3GPP network in an enterprise network or industrial control. AF network elements can also be deployed by mobile network operators.
  • the AF network element is mainly used to provide a request or policy information of an application server to the 3GPP system.
  • a third-party application interacts with the 3GPP system and transmits information through the AF network element.
  • the OAM entity is a configuration interface in the operator's network management system and is oriented to the operator; the operator can directly configure parameters on the network elements in the mobile network through the OAM entity.
  • the present application implements a method for managing local area network communications to manage LAN communications for terminals in a LAN group.
  • the following describes the management method of local area network communication provided in this application in two embodiments (ie, the first embodiment and the second embodiment).
  • the main difference between the first embodiment and the second embodiment lies in that the network elements that determine the LAN information of the terminal are different.
  • the AMF network element determines the LAN information of the terminal and sends it to the terminal.
  • the The LSMF network element determines the LAN information of the terminal and sends it to the AMF network element, and the AMF network element sends the LAN information of the terminal to the terminal.
  • the LSMF network element may be regarded as the foregoing group management network element and is used to manage the LAN group.
  • the LSMF network element can be used as an independent physical function entity or a logical function entity deployed in other network elements (such as NEF network element, PCF network element, and UDM network element) in practical applications. Therefore, if the LSMF network element is used as a logical functional entity deployed in other network elements (such as NEF network element, PCF network element, UDM network element), the operation performed by the LSMF network element can be regarded as the other network element (such as NEF). Network element, PCF network element, UDM network element).
  • the operations related to the management of the LAN group by LSMF are used as an example.
  • the operations performed by the LSMF network element can also be performed by other network elements (such as NEF network element, PCF network element, and UDM network element )carried out. That is, in the description of the embodiment of the present application, the LSMF network element may also be replaced with other network elements, such as NEF network element, PCF network element, and UDM network element.
  • the interaction between the UDM network element and the LSMF network element in the embodiment can be regarded as an internal operation.
  • a method for managing local area network communication includes the following steps:
  • the LSMF network element receives a group management request sent by a communication device.
  • the group management request may be a group creation request or a group update request.
  • the communication device may be any of the following: an AF network element; an OAM entity; a designated terminal.
  • the designated terminal may be a terminal that has permission to create a group or modify a group.
  • the designated terminal may be one of the group members or a terminal other than the group members, which is not limited in this embodiment of the present application.
  • the LSMF network element obtains the ID of the terminal, the LAN ID of the terminal, and service area information corresponding to the LAN ID according to the group management request.
  • the ID of the terminal obtained by the LSMF network element in S402 is the ID of the group member of the LAN group identified by the LAN ID, and the terminal is not the same as the aforementioned specified terminal for sending a group management request to the LSMF network element. Necessarily linked.
  • the LSMF network element can obtain a terminal list (UE list), which includes the IDs of all the terminals in the LAN group identified by the LAN ID.
  • the AMF network element can subsequently be used in different scenarios.
  • the LAN information of a certain terminal in the terminal list is determined, and the terminal indicated by the terminal ID obtained in S401 is the terminal whose subsequent LAN information needs to be determined.
  • the LSMF network element can obtain the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID in two ways.
  • the LSMF network element obtains the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID, which can be specifically implemented in the following manner:
  • the LSMF network element receives a group creation request sent by the communication device, and the group creation request is used to request creation A group for LAN communication, the group creation request carries the service area information corresponding to the group and the terminal ID; the LSMF network element assigns a LAN ID to the group; the LSMF network element determines the service area corresponding to the LAN ID.
  • the service area corresponding to the group carried in the group creation request is a group creation request sent by the communication device, and the group creation request is used to request creation A group for LAN communication, the group creation request carries the service area information corresponding to the group and the terminal ID; the LSMF network element assigns a LAN ID to the group; the LSMF network element determines the service area corresponding to the LAN ID.
  • the service area corresponding to the group carried in the group creation request
  • the group creation request sent by the communication device carries the IDs of all terminals in the group, and the IDs of all the terminals include the IDs of the terminals obtained in S401, that is, the LSMF network element passes
  • the group creation request can obtain the ID of the terminal.
  • the LSMF network element obtains the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID, which can be specifically implemented in the following manner:
  • the LSMF network element receives a first group update request sent by the communication device, and the first group update request It is used to request to update the group corresponding to the LAN ID, and the first group update request carries the LAN ID and the service area information corresponding to the LAN ID; the LSMF network element determines the ID of the terminal according to the LAN ID; or the LSMF network element receives the communication device
  • the second group update request sent is used to request to update the group corresponding to the LAN ID, and the second group update request carries the ID of the terminal and the LAN ID of the terminal; the LSMF network element is based on the LAN The ID determines the service area information corresponding to the LAN ID.
  • the group update process can be divided into two types: the first is used to update the service area information of the LAN group, and the second is used to update the members of the LAN group (that is, the terminals included in the LAN group). ).
  • the first group update request may be regarded as a group update request for updating service area information of the LAN group
  • the second group update request may be regarded as a group update for updating LAN group members. request.
  • the LSMF network element can obtain the updated service area information corresponding to the LAN ID. Since the LSMF network element has obtained the LAN ID and the ID of the terminal when the LAN group was created, after receiving the first group update request, the service area of the group identified by the LAN ID carried in the first group update request After the information is updated, it is equivalent to acquiring the ID of the terminal, the LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the terminal After updating the members of the LAN group through the second group update request, the terminal can be added to the LAN group, and the LSMF network element can obtain the ID of the terminal. Since the LSMF network element has obtained the service area information corresponding to the LAN ID and the LAN ID when the LAN group is created, after receiving the second group update request, it searches for the LAN ID corresponding to the second group update request. Service area information, to obtain the service area information corresponding to the LAN ID of the terminal.
  • the group update request received by the LSMF network element may also be a group update request (hereinafter referred to as a third group update request) for instructing deletion of a group member corresponding to the LAN ID.
  • the LSMF network element may notify the AMF network element after receiving a third group update request for instructing deletion of a terminal.
  • the AMF network element learns that the terminal has been deleted from the LAN group identified by the LAN ID, it can delete (or leave it blank) the LAN information related to the terminal and the LAN ID, and notify the terminal to delete the LAN related to the LAN ID. Information deleted (or left blank). The terminal can no longer communicate with the terminal in the LAN group identified by the LAN ID.
  • the LSMF network element may also be obtained through S401 together.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the AMF network element can interact with LSMF network elements, UDM network elements, and terminals The process obtains this information. The specific manners will be described in the following embodiments A, B, C, and D, respectively, and will not be repeated here.
  • the AMF network element may also obtain the restriction information in S403.
  • the AMF network element determines the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the LAN information of the terminal includes LAN ID and LAN communication area information of the terminal.
  • the AMF network element also obtains the restriction information of the terminal or the restriction information corresponding to the LAN ID in S403, the LAN information of the terminal may also include these restriction information.
  • the terminal or network for example, AMF network element, SMF network element, UDM network Element or LSMF network element
  • AMF network element for example, AMF network element, SMF network element, UDM network Element or LSMF network element
  • the AMF network element may send the terminal's LAN information to the terminal through any one of a configuration update message, a registration response message, or a PDU session management response message.
  • the PDU session management response may be a PDU session establishment response, a PDU session modification response, or a PDU session release response.
  • S406 The terminal manages the LAN communication of the terminal according to the LAN information.
  • the terminal manages the local area network communication of the terminal according to the terminal's LAN information, which can be specifically implemented in the following manner: The terminal is prohibited from initiating a second LAN communication request when the terminal is not in the LAN communication area.
  • the second LAN communication request may be signaling or data.
  • the second LAN communication request may be a PDU session establishment request, a PDU session modification request, or a message for transmitting data.
  • the terminal Before the terminal initiates the second LAN communication request, the terminal can check its own location and find the LAN communication area information of the terminal according to the LAN ID corresponding to the second LAN communication request. In a case where the location of the terminal is not within the communication area indicated by the LAN communication area information, the terminal is prohibited from initiating a second LAN communication request. Of course, if the location of the terminal is within the communication area indicated by the LAN communication area information, the terminal may initiate a second LAN communication request.
  • the LAN ID in the terminal can be used as the local data network data network name (LADN) and the local area network data (LADN) similar mechanism is used to manage the local area network communication of the terminal.
  • LADN local data network data network name
  • LADN local area network data
  • other network elements in the network can also manage the local area network communication of the terminal based on the terminal's LAN information, such as SMF network elements, AMF network elements, UDM network elements, and LSMF network elements.
  • the AMF network element manages the terminal's local area network communication according to the terminal's LAN information.
  • the specific implementation method may be: the AMF network element receives the first LAN communication request sent by the terminal, and the first LAN communication request carries LAN ID; AMF determines the LAN information of the terminal according to the LAN ID and the ID of the terminal; if the location of the AMF network element is not within the LAN communication area, the SMF network element is reported to the SMF network element, so that the SMF network element processes the first LAN communication request .
  • the first LAN communication request may be signaling or data.
  • the first LAN communication request may be a PDU session establishment request, a PDU session modification request, or a message for transmitting data.
  • the AMF network element After the AMF network element receives the first LAN communication request, the AMF network element can search the local context according to the session to obtain the ID of the terminal; then, according to the LAN ID carried in the first LAN communication request, the LAN information of the terminal is correspondingly searched, so that Get the communication area information of the terminal. After checking the location of the terminal, the AMF determines whether the location of the terminal is within the communication area indicated by the LAN communication area information. If the location of the terminal is not within the communication area indicated by the LAN communication area information, the AMF network element reports the SMF network element, so that the SMF network element processes the first LAN communication request. Of course, if the location of the terminal is within the communication area indicated by the LAN communication area information, the AMF network element may also report the SMF network element, so that the SMF network element responds to the first LAN communication request.
  • the SMF network element may process the first LAN communication request in the following manner: the SMF network element may reject the first LAN initiated by the terminal The communication request, for example, refuses to establish / modify a session for the terminal; if the SMF network element has already established a session for the terminal when receiving the notification from the AMF network element, the SMF network element may also deactivate or release the related session.
  • the AMF network element can also use the LAN ID as the LADN and DNN, and use a similar mechanism of the LADN to manage the terminal's LAN communication, thereby limiting the terminal's use of 5GLAN services.
  • the AMF network element is only an expression used in the embodiments of this application. Under different network standards or network environments, the AMF network element may be replaced with a different network element name, as long as the network element can be used to implement The functions of the AMF network element in the embodiments of the present application are sufficient. Similarly, the UDM network element and the LSMF network element may be replaced by other network elements that can be used to implement the same function, which will not be repeated here.
  • the terminal's LAN information that determining the terminal's LAN information requires at least the terminal's LAN ID, the service area information corresponding to the terminal's LAN ID, and the terminal's registered area information.
  • the registered area information of the terminal may be generated by the AMF network element and stored in the local context, and the service area information corresponding to the LAN ID of the terminal needs the AMF network element to obtain from other network elements (for example, LSMF network element or UDM network element).
  • the first embodiment can be further divided into four embodiments: embodiment A, embodiment B, embodiment C, and embodiment D.
  • the LSMF network element directly sends the service area information corresponding to the LAN ID as a configuration parameter to the AMF network element, and sends the terminal's LAN subscription information (for example, the LAN ID and the terminal ID in the LAN group identified by the LAN ID).
  • the LSMF network element first sends the terminal's LAN subscription information as a configuration parameter to the UDM network element, and then the LSMF network element corresponds to the LAN ID based on the request of the AMF network element
  • the service area information of the UE is sent to the AMF network element, and the UDM network element can directly send the terminal's LAN contract information to the AMF network element, or can send the terminal's LAN contract information to the AMF network element based on the request of the AMF network element; in the embodiment
  • the LSMF network element sends the terminal's LAN contract information and the service area information corresponding to the LAN ID as configuration parameters to the UDM network element.
  • the UDM network element can directly send this information to the AMF network element or based on the request of the AMF network element Send this information to the AMF network element for use by the AMF network element to determine the LAN information of the terminal; in Embodiment D, the LSMF network element does not send configuration parameters to the UDM network element, but instead sends the terminal's LAN contract information and LAN ID The corresponding service area information and other information are stored locally, and then the LSMF network element can directly send the information to the AMF network element, or send the information to the AMF network element based on the request of the AMF network element for the AMF network element to determine the Use the LAN information of the terminal.
  • Example A Example B, and Example C
  • the LSMF network element all sent configuration parameters (hereinafter referred to as the second configuration parameter) to the UDM network element.
  • the LSMF network element also A configuration parameter (hereinafter referred to as a first configuration parameter) is sent to the AMF network element.
  • the parameter types included in the second configuration parameter may be different.
  • the second configuration parameter may include only the LAN ID and the terminal ID; for example, in addition to the LAN ID and the terminal ID, the second configuration parameter may also include the restriction information of the terminal; for example, in addition to the LAN ID and the terminal
  • the second configuration parameter may also include service area information corresponding to the LAN ID; for another example, in addition to the LAN ID and the terminal ID, the second configuration parameter may also include restriction information corresponding to the LAN ID.
  • the manner in which the LSMF network element performs step S401 to receive the group management request from the communication device is the same. Therefore, in the embodiment A, the embodiment B.
  • the steps of receiving the group management request by the LSMF network element are omitted.
  • the LSMF network element directly sends the service area information corresponding to the LAN ID as a configuration parameter to the AMF network element, and sends the terminal's LAN subscription information (for example, the LAN ID and the terminal ID in the LAN group identified by the LAN ID). ID) is sent to the UDM network element as a configuration parameter for use by the AMF network element when determining the LAN information of the terminal.
  • the LSMF network element may select an AMF network element and a UDM network element according to the service area information corresponding to the LAN ID. ; Then, the LSMF network element sends a first configuration parameter to the selected AMF network element, and sends a second configuration adoption number to the selected UDM network element, the first configuration parameter including LAN ID and service area information corresponding to the LAN ID,
  • the second configuration parameter includes a LAN ID and a terminal ID.
  • the first configuration parameter may further include restriction information corresponding to the LAN ID
  • the second configuration parameter may further include restriction information of the terminal.
  • the management method of LAN communication shown in FIG. 4 may be shown in FIG. 5.
  • the method includes the following steps.
  • the LSMF network element obtains the ID of the terminal, the LAN ID of the terminal, and service area information corresponding to the LAN ID.
  • the LSMF network element may also be obtained through S501.
  • the specific implementation of the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area information corresponding to the LAN ID in S501 is the same as the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area corresponding to the LAN ID in S401
  • the specific implementation of the information is the same (obtained through a group management request), and the duplicates are not repeated here.
  • the LSMF network element selects a UDM network element and an AMF network element according to the service area information corresponding to the LAN ID.
  • the UDM network element selected by the LSMF network element may be all UDM network elements in the service area corresponding to the LAN ID; the AMF network element selected by the LSMF network element may be all AMF network elements in the service area corresponding to the LAN ID.
  • the LSMF network element may send the second configuration parameter to the LAN ID. All UDM network elements in the service area of the. In the case where it is difficult to know which AMF network element is used by the terminal in the LAN group identified by the LAN ID for access and mobility management, the LSMF network element may send the first configuration parameter to the corresponding LAN ID. All AMF network elements in the service area.
  • the LSMF network element sends the second configuration parameter to the selected UDM network element.
  • the second configuration parameter includes the LAN ID and the ID of the terminal.
  • the second configuration parameter may further include restriction information of the terminal.
  • the LSMF network element sends the first configuration parameter to the selected AMF network element.
  • the first configuration parameter includes LAN ID and service area information corresponding to the LAN ID.
  • the first configuration parameter may further include restriction information corresponding to the LAN ID.
  • S503 and S504 is not limited in the embodiment of the present application, and S503 and S504 may be executed first, S504 and S503 may be executed first, or S503 and S504 may also be executed simultaneously.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the AMF network element may also obtain the restriction information in S505 for determining the Used when the terminal's LAN information.
  • the AMF network element determines the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the LAN information of the terminal includes LAN ID and LAN communication area information of the terminal.
  • the AMF network element also obtains the restriction information of the terminal or the restriction information corresponding to the LAN ID in S505
  • the LAN information of the terminal may also include these restriction information, such as the AMF network element, SMF network element, UDM network Element or LSMF network element) when managing the terminal's LAN communication based on the LAN information, it is also necessary to consider these restriction information.
  • these restriction information such as the AMF network element, SMF network element, UDM network Element or LSMF network element
  • S508 The terminal manages the LAN communication of the terminal according to the LAN information.
  • the specific way in which the terminal manages the LAN communication of the terminal according to the LAN information is the same as the specific way in which the terminal manages the LAN communication of the terminal according to the LAN information in S406, and the repeated description is omitted.
  • network elements in the network can also manage the LAN communication of the terminal according to the LAN information of the terminal.
  • the specific implementation manner is also described in the method shown in FIG. 4, and will not be repeated here.
  • the AMF network element may obtain the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID based on different interaction processes with the terminal, and The LAN information of the terminal is sent to the terminal through different interaction processes.
  • the AMF network element may receive a contract data update notification for the terminal, and the contract data update notification includes a LAN ID (that is, for the terminal's local area network communication in the LAN group) If the contract data of the terminal changes), the step of determining the LAN information of the terminal is triggered, and the terminal's LAN information is sent to the terminal through a configuration update message, so that the terminal can update the LAN information in time and perform the process according to the latest LAN information.
  • LAN communication the contract data update notification for the terminal, and the contract data update notification includes a LAN ID (that is, for the terminal's local area network communication in the LAN group)
  • the AMF network element can request the UDM network element's subscription data for the terminal, and determine the LAN information of the terminal based on the information returned by the UDM, and then The LAN information of the terminal is sent to the terminal through a registration response message, so that the terminal can perform LAN communication according to the LAN information after completing the registration process.
  • AMF can also determine the LAN information of the terminal when the terminal initiates a PDU session management request, and send the terminal's LAN information to the terminal through the PDU session management response, so that the terminal can update the LAN information in time and The latest LAN information is used for LAN communication.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID in step S505 with reference to the accompanying drawings.
  • the LSMF network element For a terminal that has been registered in the network, if the LSMF network element receives a group creation request or a group update request, it can notify the UDM network element of the contract information of the terminal, and the UDM network element sends a contract data update notification to the AMF network element. .
  • AMF network element can receive the terminal's contract data update notification, and the contract data update notification includes the terminal's LAN ID (that is, the contract data for the terminal's LAN communication in the LAN group has changed)
  • the contract data update notification includes the terminal's LAN ID (that is, the contract data for the terminal's LAN communication in the LAN group has changed)
  • an operation for determining the LAN information of the terminal is triggered, and the LAN information of the terminal is sent to the terminal through a configuration update message, so that the terminal can update the LAN information in time, and manage the terminal's LAN communication according to the latest LAN information.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the information sent by the UDM network element.
  • the fourth contract data update notification, the fourth contract data update notification includes the LAN ID and the terminal ID;
  • the AMF obtains the registered area information of the terminal according to the terminal ID;
  • the AMF network element obtains the LAN ID carried in the fourth contract data update notification, and Acquire the service area information corresponding to the LAN ID according to the first configuration parameter.
  • the specific implementation of the AMF network element sending the terminal's LAN information to the terminal may be: the AMF network element sends a third configuration update message to the terminal, and the third configuration update message includes the terminal's LAN information.
  • the AMF network element stores the context of the terminal. After receiving the fourth contract data update notification, the AMF network element can obtain the fourth contract data by searching the context.
  • the registration area information corresponding to the ID of the terminal carried in the update notification that is, the registration area information of the terminal.
  • the AMF network element may also obtain the LAN ID carried in the fourth contract data update notification, and obtain service area information corresponding to the LAN ID according to the first configuration parameter. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to generate the LAN information.
  • the UDM can directly update the second configuration parameter through the fourth subscription data update notification.
  • Send to the AMF network element so that the AMF network element determines the LAN information of the registered terminal according to the second configuration parameter and other parameters (such as the first configuration parameter), and sends the LAN information to the terminal, so that the registered terminal can be based on the terminal's LAN information is used for local area network communication.
  • the fourth contract data update notification may also carry the restriction information of the terminal, so that the AMF network element may use it when determining the LAN information of the terminal.
  • the AMF network element cannot send the LAN information of the terminal to the terminal through a configuration update process.
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when the terminal initiates a registration request, that is, request the UDM network element's contract data for the terminal, and determine the terminal's LAN based on the contract data returned by the UDM network element. Information, and then send the LAN information of the terminal to the terminal through a registration response message, so that the terminal can manage the LAN communication according to the LAN information after completing the registration process.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the first Three registration request messages, the third registration request message carries the ID of the terminal; the AMF network element sends a fourth subscription data request message to the UDM network element, and the fourth subscription data request message carries the ID of the terminal; the AMF network element receives the UDM network element
  • the fourth contract data response message sent, the fourth contract data response message carries the LAN ID;
  • the AMF generates the registration area information of the terminal;
  • the AMF network element obtains the LAN ID carried in the fourth contract data response message, and according to the first configuration parameter Obtain the service area information corresponding to the LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the specific implementation manner may be: the AMF network element sends a third registration response message to the terminal, and the third registration response message carries the LAN information of the terminal.
  • the fourth subscription data response message carries the LAN ID, which means that the UDM network element adds the terminal requesting registration to the LAN group identified by the LAN ID. Since the LSMF network element has obtained the LAN ID of the LAN group and the service area information corresponding to the LAN ID when the LAN group is created, the AMF network element can find the first subscription data response message after receiving the fourth subscription data response message. A configuration parameter to obtain service area information corresponding to the LAN ID carried in the fourth subscription data response message. In addition, during the registration process of the terminal, the AMF network element dynamically generates the registration area information of the terminal requesting registration. Therefore, in the second method, the AMF network element can generate the terminal after receiving the fourth contract data response message. Registration area information. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to generate the LAN information.
  • the fourth contract data response message may also carry the restriction information of the terminal for the AMF network element to determine the LAN of the terminal Information.
  • the AMF can also trigger an operation to determine the LAN information of the terminal when the terminal initiates a PDU session management request, and send the terminal's LAN information to the terminal through a PDU session management response. In this way, the terminal can update the LAN information in time, and manage the LAN communication according to the latest LAN information.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the first A PDU session management request, the first PDU session management request carries the LAN ID;
  • the AMF network element obtains the registration area information of the terminal from the context of the terminal;
  • the AMF network element obtains the LAN ID carried in the first PDU session management request, and Acquire the service area information corresponding to the LAN ID according to the first configuration parameter.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the specific implementation manner may be that the AMF network element sends a first PDU session management response to the terminal, and the first PDU session management response carries the terminal's LAN information.
  • the first PDU session management request may be a PDU session establishment request, a PDU session modification request, or a PDU session release request.
  • the first PDU session management response may be a PDU session establishment response, a PDU session modification response, or a PDU session release response. .
  • the registered terminal has established a separate signaling connection with the AMF network element. Therefore, after receiving the first PDU session management request on the dedicated channel between the AMF network element and the terminal, the AMF network element can learn the The ID of the terminal can further determine the registration area information of the terminal according to the context information saved when the terminal is registered.
  • the AMF network element may also obtain the LAN ID carried in the first PDU session management request, and obtain service area information corresponding to the LAN ID according to the first configuration parameter. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to generate the LAN information.
  • the first PDU session management request sent by the terminal to the AMF network element carries the LAN ID.
  • the specific meaning may be that the terminal wishes to perform LAN communication with the terminals in the LAN group, and the terminal may send the first PDU to the AMF network element.
  • the AMF network element triggers a process of determining LAN information of the terminal after receiving the first PDU session management request. After the AMF network element responds to the first PDU session management request, it means that the terminal can perform local area network communication with the terminals in the LAN group.
  • the AMF network element After receiving the first PDU session management request, the AMF network element performs PDU session processing through interaction with the SMF network element, and then sends a first PDU session management response to the terminal. Since the PDU session processing flow is the prior art, it will not be described in detail in the embodiments of the present application.
  • whether the terminal can join the LAN group identified by the LAN ID carried in the first PDU session management request can also be determined after UDM network element authentication. That is, after the AMF network element receives the first PDU session management request sent by the terminal, the AMF network element may send a fifth subscription data request message to the UDM network element, and the fifth subscription data request message carries the terminal ID and the LAN ID; , The AMF network element receives the fifth subscription data response message sent by the UDM network element.
  • the AMF network element After receiving the fifth subscription data response message, the AMF network element indicates that the terminal can perform local area network communication with the terminals in the LAN group. At this time, the AMF network element can be triggered to perform an operation of determining the LAN information of the terminal.
  • the fifth subscription data response message may also carry the restriction information of the terminal for the AMF network element Used to determine the LAN information of the terminal.
  • the above three methods can be used separately for different terminals (that is, each terminal only uses one of the above three methods to achieve LAN information confirmation and reception), or the above three methods can be used for the same terminal. Any of several. For example, when a terminal initiates a registration request, the second method is used to determine the LAN information of the terminal. After the LAN group to which the terminal belongs is updated, the first method may be used to determine the updated LAN information of the terminal. In addition, when the terminal terminal initiates a PDU session management request, the AMF can also reconfirm the LAN information of the terminal and send the confirmed LAN information to the terminal so that the LAN information of the terminal can be updated in time.
  • the embodiment of the present application further provides a method for managing local area network communication.
  • This method can be regarded as a specific example of the method shown in FIG. 5. Referring to FIG. 6, the method includes the following steps.
  • the LSMF network element receives the group creation / update message from the NEF network element / AF network element, and obtains the local area network identification (LAN ID), service area information (servicearea) corresponding to the LAN ID, and the local area network group.
  • LAN ID local area network identification
  • servicearea service area information
  • UEID restriction information
  • restriction information restriction information
  • restriction2 restriction information
  • the LSMF network element creates / updates the service area information of the group, and selects the UDM network element and the AMF network element according to the service area information corresponding to the LAN ID.
  • the UDM network element selected by the LSMF network element may be all UDM network elements in the service area corresponding to the LAN ID, and the AMF network element selected by the LSMF network element may be all AMF network elements in the service area corresponding to the LAN ID.
  • the LSMF network element sends a configuration parameter 1 (Configure1) to the selected UDM network element, which carries the LAN ID, UE ID, and restrictions1.
  • the LSMF network element sends a configuration parameter 2 (Configure2) to the selected AMF network element, which carries the LAN ID, service area, and restrictions2.
  • Configure2 a configuration parameter 2 (Configure2)
  • A For registered UEs in the group, the following methods can be used to update the LAN information of the UE
  • the UDM network element For the registered UEs in the Group, the UDM network element sends a subscription data update notification to the AMF network element serving the UE, which carries the LAN ID, UE ID, and restrictions1.
  • the AMF network element serving the UE determines the registered area information of the UE according to the UE ID, and determines the LAN information of the UE according to the registered area information of the UE, service area, LAN ID, restrictions1, and restrictions2.
  • the AMF network element configures the LAN information to the UE through a UE configuration update command (UE Configuration Update Command) in the UE configuration update process.
  • UE Configuration Update Command UE Configuration Update Command
  • the UE configuration update instruction may be regarded as a specific example of the third configuration update message.
  • the UE sends a registration request message to the AMF network element, which carries the UE ID.
  • the AMF network element sends a contract data request (carrying the UE ID) to the UDM network element, and the UDM network element returns a contract data response message; if the UE has subscribed to this LAN service, the contract data response message obtained by the AMF network element carries the UE's contract LAN ID and restriction1; the AMF network element determines the service area information corresponding to the LAN ID according to the LAN ID, and determines the UE ’s service area based on the registration area information dynamically generated for the UE during the registration process, the service area corresponding to the LAN ID, LAN ID, restriction1, and restriction2. LAN information.
  • the AMF network element configures the LAN information to the UE through a registration response (registration response) message.
  • the UE sends a non-access layer message to the AMF network element.
  • the NASMessage carries a session ID, a LAN ID, and a PDU session management request.
  • the PDU session management request may be a session creation request or a session modification. Request or session release request.
  • the AMF network element sends a contract data request (carrying the UE ID and LAN ID) to the UDM network element.
  • the UDM network element returns a contract data response message, which can carry restrictions1. If the UE has subscribed to this LAN service, the AMF network element can The ID determines the service area information corresponding to the LAN ID, and determines the LAN information of the UE according to the LAN ID, the registered area information of the UE found in the local context, the service area information corresponding to the LAN ID, restrictions1 and restrictions2.
  • the AMF network element may request the SMF network element to process the session management request according to the existing session flow.
  • the AMF network element sends a non-access stratum message (NAS message) to the UE.
  • NAS message carries a session ID (Session ID), LAN information, and a PDU session management response, thereby configuring the LAN information to the UE.
  • the PDU session management response can be obtained from the SMF network element.
  • the LAN ID in the UE can be used as the LADN and DNN.
  • a similar mechanism of multiplexing LADN is used to restrict the LAN session of the UE, thereby restricting the UE from using the 5GLAN service.
  • the AMF network element and the SMF network element can also use the LAN ID as the LADN and DNN, and use a similar mechanism of the LADN to process the UE's LAN session.
  • the LAN information of the UE may further include restriction1 and restriction2, which is information that the UE or a network (for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element) refers to when processing a LAN session.
  • restriction1 and restriction2 is information that the UE or a network (for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element) refers to when processing a LAN session.
  • the LSMF network element first sends the terminal's LAN subscription information as a configuration parameter to the UDM network element, and then the LSMF network element sends the service area information corresponding to the LAN ID to the AMF network element based on the request of the AMF network element, and the UDM
  • the network element may directly send the LAN contract information of the terminal to the AMF network element, or may send the LAN contract information of the terminal to the AMF network element based on the request of the AMF network element.
  • the AMF network element may request the LSMF network element to obtain the service area information corresponding to the LAN ID for use by the AMF network element when determining the LAN information of the terminal.
  • the LSMF network element obtains the ID of the terminal, the LAN ID of the terminal, and service area information corresponding to the LAN ID.
  • the LSMF network element may also be obtained through S701.
  • the specific implementation of the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area information corresponding to the LAN ID in S701 is the same as the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area corresponding to the LAN ID in S401.
  • the specific implementation of the information is the same (obtained through a group management request), and the duplicates are not repeated here.
  • the LSMF network element selects a UDM network element according to the service area information corresponding to the LAN ID.
  • the UDM network element selected by the LSMF network element may be all UDM network elements in the service area indicated by the service area information corresponding to the LAN ID.
  • the LSMF network element may send the second configuration parameter to the LAN ID. All UDM network elements in the service area of the.
  • S703 The LSMF network element sends the second configuration parameter to the UDM network element.
  • the second configuration parameter includes the LAN ID and the ID of the terminal.
  • the second configuration parameter may further include restriction information of the terminal.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the AMF network element may also obtain the restriction information in S704 for determining the Used when the terminal's LAN information.
  • the AMF network element determines the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the LAN information of the terminal includes LAN ID and LAN communication area information of the terminal.
  • the AMF network element also obtains the restriction information of the terminal or the restriction information corresponding to the LAN ID in S704
  • the LAN information of the terminal may also include these restriction information, such as the AMF network element, SMF network element, UDM network Element or LSMF network element) when managing the terminal's LAN communication based on the LAN information, it is also necessary to consider these restriction information.
  • these restriction information such as the AMF network element, SMF network element, UDM network Element or LSMF network element
  • the terminal manages the LAN communication of the terminal according to the LAN information.
  • the specific manner in which the terminal manages the LAN communication of the terminal according to the LAN information is the same as the specific manner in which the terminal manages the LAN communication of the terminal according to the LAN information in S406, and duplicated details are not described again.
  • network elements in the network can also manage the LAN communication of the terminal according to the LAN information of the terminal.
  • the specific implementation manner is also described in the method shown in FIG. 4, and will not be repeated here.
  • the AMF network element may determine the timing of determining the LAN information of the terminal based on different interaction processes with the terminal, thereby obtaining the registration area information of the terminal and the local area network identifier LAN of the terminal. ID and service area information corresponding to LAN ID.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID in step S704 with reference to the accompanying drawings.
  • the LSMF network element For a terminal that has been registered in the network, if the LSMF network element receives a group creation request or a group update request, it can notify the UDM network element of the contract information of the terminal, and the UDM network element sends a contract data update notification to the AMF network element. .
  • AMF network element can receive the terminal's contract data update notification, and the contract data update notification includes the terminal's LAN ID (that is, the contract data for the terminal's LAN communication in the LAN group has changed)
  • the contract data update notification includes the terminal's LAN ID (that is, the contract data for the terminal's LAN communication in the LAN group has changed)
  • an operation for determining the LAN information of the terminal is triggered, and the LAN information of the terminal is sent to the terminal through a configuration update message, so that the terminal can update the LAN information in time, and manage the terminal's LAN communication according to the latest LAN information.
  • the AMF network element in S704 to obtain the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID may be implemented in the following manner:
  • the AMF network element receives the first A contract data update notification, the first contract data update notification includes the LAN ID and the terminal ID;
  • the AMF obtains the registered area information of the terminal according to the terminal ID;
  • the AMF network element sends a first request message to the LSMF network element,
  • the LAN ID is carried.
  • the first request message is used to request to obtain the service area information corresponding to the LAN ID.
  • the AMF network element receives a first response message sent by the LSMF network element.
  • the first response message carries the service area information corresponding to the LAN ID.
  • the specific implementation of the AMF network element sending the terminal's LAN information to the terminal may be: the AMF network element sends a first configuration update message to the terminal, and the first configuration update message includes the LAN information of the terminal.
  • the AMF network element triggers an operation of determining the LAN information of the terminal. For a terminal that has been registered in the network, the AMF network element stores the context of the terminal. After receiving the first contract data update notification, the AMF network element can obtain the information carried in the first contract data update notification by searching the context. The registered area information corresponding to the terminal ID, that is, the registered area information of the terminal. In addition, at this time, the AMF network element may send a first request message to the LSMF network element to request to obtain service area information corresponding to the LAN ID. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to generate the LAN information.
  • the UDM network element may directly update the second through the first subscription data update notification.
  • the configuration parameters are sent to the AMF network element, so that the AMF network element can determine the LAN information of the registered terminal according to the second configuration parameter and other parameters (for example, the service area information corresponding to the LAN ID obtained through the first response message), and the LAN information Send to the terminal, so that the registered terminal can perform LAN communication based on the terminal's LAN information.
  • the first contract data update notification may also carry the restriction information of the terminal for the AMF network element to determine the terminal's LAN information. use.
  • the AMF network element cannot send the LAN information of the terminal to the terminal through a configuration update process.
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when the terminal initiates a registration request, that is, request the UDM network element's contract data for the terminal, and determine the terminal's LAN based on the contract data returned by the UDM network element. Information, and then send the LAN information of the terminal to the terminal through a registration response message, so that the terminal can manage the LAN communication according to the LAN information after completing the registration process.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the first A registration request message, the first registration request message carries the ID of the terminal; the AMF network element sends a first subscription data request message to the UDM network element, and the first subscription data request message carries the ID of the terminal; the AMF network element receives the UDM network element The first subscription data response message sent, the first subscription data response message carries the LAN ID;
  • the AMF generates the registration area information of the terminal;
  • the AMF network element sends a second request message to the LSMF network element, and the second request message carries the LAN ID,
  • the second request message is used to request to obtain the service area information corresponding to the LAN ID; the AMF network element receives a second response message sent by the LSMF network element, and the second response message carries the service
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the specific implementation manner may be: the AMF network element sends a first registration response message to the terminal, and the first registration response message carries the LAN information of the terminal.
  • the AMF network element triggers an operation of determining the LAN information of the terminal.
  • the AMF network element dynamically generates the registration area information of the terminal requesting registration. Therefore, in the second method, the AMF network element can generate the registration of the terminal after receiving the first contract data response message. Area information.
  • the first subscription data response message carries the LAN ID, which means that the UDM network element adds the terminal requesting registration to the LAN group identified by the LAN ID.
  • the LSMF network element has obtained the LAN ID of the LAN group and the service area information corresponding to the LAN ID.
  • the AMF network element may send the first contract data response message to the LSMF network.
  • the unit sends a second request message to obtain service area information corresponding to the LAN ID. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to generate the LAN information.
  • the first contract data response message may also carry the restriction information of the terminal for the AMF network element to determine the LAN of the terminal Information.
  • the AMF can also trigger an operation to determine the LAN information of the terminal when the terminal initiates a PDU session management request, and send the terminal's LAN information to the terminal through a PDU session management response. In this way, the terminal can update the LAN information in time, and manage the LAN communication according to the latest LAN information.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the first Two PDU session management requests, the second PDU session management request carries the LAN ID;
  • the AMF network element obtains the registered area information of the terminal from the context of the terminal;
  • the AMF network element sends a fourth request message to the LSMF network element, and the fourth request message
  • a LAN ID is carried in the fourth request message for requesting to obtain service area information corresponding to the LAN ID;
  • the AMF network element receives a fourth response message sent by the LSMF network element, and the fourth response message carries the service area information corresponding to the LAN ID;
  • the AMF The network element acquires the LAN ID carried in the second PDU session management request, and acquires service area information corresponding to the LAN ID according to the second response message.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the specific implementation manner may be that the AMF network element sends a second PDU session management response to the terminal, and the second PDU session management response carries the LAN information of the terminal.
  • the second PDU session management request may be a PDU session establishment request, a PDU session modification request, or a PDU session release request.
  • the second PDU session management response may be a PDU session establishment response, a PDU session modification response, or a PDU session release response. .
  • the AMF network element triggers an operation of determining the LAN information of the terminal.
  • the registered terminal has established a separate signaling connection with the AMF network element. Therefore, after receiving the second PDU session management request on the dedicated channel between the AMF network element and the terminal, the AMF network element can learn the The ID of the terminal can further determine the registration area information of the terminal according to the context information saved when the terminal is registered.
  • the AMF network element may send a fourth request message to the LSMF network element to request to obtain service area information corresponding to the LAN ID. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to generate the LAN information.
  • the second PDU session management request sent by the terminal to the AMF network element carries the LAN ID, and its specific meaning may be: the terminal wishes to perform LAN communication with the terminals in the LAN group, and the terminal may send the second PDU to the AMF network element.
  • the AMF network element triggers a process of determining the LAN information of the terminal after receiving the second PDU session management request. After the AMF network element responds to the second PDU session management request, it means that the terminal can perform LAN communication with the terminals in the LAN group.
  • the AMF network element After receiving the second PDU session management request, the AMF network element performs PDU session processing through interaction with the SMF network element, and then sends a second PDU session management response to the terminal. Since the PDU session processing flow is the prior art, it will not be described in detail in the embodiments of the present application.
  • whether the terminal can join the LAN group identified by the LAN ID carried in the second PDU session management request can also be determined after UDM network element authentication. That is, after the AMF network element receives the second PDU session management request sent by the terminal, the AMF network element may send a sixth subscription data request message to the UDM network element, and the sixth subscription data request message carries the terminal ID and the LAN ID; , The AMF network element receives the sixth subscription data response message sent by the UDM network element.
  • the AMF network element After receiving the sixth subscription data response message, the AMF network element indicates that the terminal can perform LAN communication with the terminals in the LAN group. At this time, the AMF network element can be triggered to perform the operation of determining the LAN information of the terminal.
  • the sixth subscription data response message may also carry the restriction information of the terminal for the AMF network element Used to determine the LAN information of the terminal.
  • the above three methods can be used separately for different terminals (that is, each terminal only uses one of the above three methods to achieve LAN information confirmation and reception), or the above three methods can be used for the same terminal. Any of several. For example, when a terminal initiates a registration request, the second method is used to determine the LAN information of the terminal. After the LAN group to which the terminal belongs is updated, the first method may be used to determine the updated LAN information of the terminal. In addition, when the terminal terminal initiates a PDU session management request, the AMF can also reconfirm the LAN information of the terminal and send the confirmed LAN information to the terminal so that the LAN information of the terminal can be updated in time.
  • Embodiment A no matter whether the AMF network element needs to perform the step of determining the terminal's LAN information, the LSMF network element will be the first after the group is created or updated.
  • the configuration parameters are sent to all AMF network elements in the service area of the group; in Embodiment B, the LSMF network element does not send the first configuration parameters to all AMF network elements in the group service area, but is based on the AMF.
  • the request of the network element sends a response message carrying the LAN ID and the service area information corresponding to the LAN ID to the AMF network element; since only the AMF network element serving the terminal sends a request message to the LSMF network element, so in Embodiment B In the LSMF network element, the processing load is small, and the AMF network element that is not used to provide service to the terminal will not receive the first configuration parameter. For these AMF network elements, the effect of saving storage space can also be achieved.
  • the embodiment of the present application further provides a method for managing local area network communication.
  • This method can be regarded as a specific example of the method shown in FIG. 7. Referring to FIG. 8, the method includes the following steps.
  • the LSMF network element receives the group creation / update message from the NEF network element / AF network element, and obtains the local area network identification (LANID), service area information (servicearea) corresponding to the LAN ID, and the local area network group.
  • LANID local area network identification
  • servicearea service area information
  • UE ID restriction information (restrictions1) of the UE
  • restriction information restriction information (restrictions2) corresponding to the LANID.
  • the LSMF network element selects the UDM network element according to the service area information corresponding to the LAN ID.
  • the UDM network element selected by the LSMF network element may be all UDM network elements in the service area corresponding to the LAN ID.
  • the LSMF network element sends a configuration parameter 1 (Configure1) to the selected UDM network element, which carries the LAN ID, UE ID, and restrictions1.
  • A For registered UEs in the group, the following methods can be used to update the LAN information of the UE
  • the UDM network element For the registered UEs in the Group, the UDM network element sends a subscription data update notification to the AMF network element serving the UE, which carries the LAN ID, UE ID, and restrictions1.
  • the AMF network element sends a LAN information acquisition request (carrying a LANID) to the LSMF network element, and the LSMF network element sends a LAN information acquisition response to the AMF network element, carrying servicearea and restrictions2.
  • the LAN information acquisition request may be regarded as a specific example of the foregoing first request message
  • the LAN information acquisition response may be regarded as a specific example of the foregoing first response message.
  • the AMF network element serving the UE determines the registered area information of the UE according to the UE ID, and determines the LAN information of the UE according to the registered area information of the UE, service area, LAN ID, restrictions1, and restrictions2.
  • the AMF network element configures the LAN information to the UE through a UE configuration update command (UE Configuration Update Command) in the UE configuration update process.
  • UE Configuration Update Command UE Configuration Update Command
  • the UE configuration update instruction may be regarded as a specific example of the first configuration update message.
  • the UE sends a registration request message to the AMF network element, which carries the UE ID.
  • the AMF network element sends a contract data request (carrying the UE ID) to the UDM network element, and the UDM network element returns a contract data response message; if the UE has subscribed to this LAN service, the contract data response message obtained by the AMF network element carries the UE's contract LAN ID and restrictions 1.
  • the AMF network element sends a LAN information acquisition request (carrying a LAN ID) to the LSMF network element, and the LSMF network element sends a LAN information acquisition response to the AMF network element, carrying servicearea and restrictions2.
  • the AMF network element determines the service area information corresponding to the LAN ID according to the LAN ID, and determines the LAN information according to the registration area information dynamically generated for the UE in the registration process, and the service area information corresponding to the LAN ID, LAN ID, restrictions 1 and restrictions 2.
  • the LAN information acquisition request may be regarded as a specific example of the foregoing second request message
  • the LAN information acquisition response may be regarded as a specific example of the foregoing second response message.
  • the AMF network element configures the LAN information to the UE through a registration response (registration response) message.
  • the UE sends a non-access stratum message (NAS message) to the AMF network element.
  • NAS message carries a session ID (Session ID), a LAN ID, and a PDU session management request.
  • the PDU session management request may be a session creation request, a session modification request, or a session release request.
  • the AMF network element sends a subscription data request (carrying the UE ID and the LAN ID) to the UDM network element, and the UDM network element returns a contract data response message, which may carry restrictions1.
  • the AMF network element sends a LAN information acquisition request (carrying a LAN ID) to the LSMF network element, and the LSMF network element sends a LAN information acquisition response to the AMF network element, carrying servicearea and restrictions2.
  • the AMF network element determines the LAN information of the UE according to the registered area information of the UE found in the local context, and servicearea, LAN ID, restrictions1 and restrictions2.
  • the AMF network element may request the SMF network element to process the session management request according to the existing session flow.
  • the AMF network element sends a non-access stratum message (NAS message) to the UE, and the NAS message carries a session ID (Session ID), LAN information, and a PDU session management response, thereby configuring the LAN information to the UE.
  • NAS message non-access stratum message
  • the PDU session management response can be obtained from the SMF network element.
  • the LAN ID in the UE can be used as the LADN and the DNN, and the LADN similar mechanism is used to restrict the UE's LAN session, thereby restricting the UE from using the 5GLAN service.
  • the AMF network element and the SMF network element can also use the LAN ID as the LADN and DNN, and use a similar mechanism of the LADN to process the UE's LAN session.
  • the LAN information of the UE may further include restriction1 and restriction2, which is information that the UE or a network (for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element) refers to when processing a LAN session.
  • restriction1 and restriction2 is information that the UE or a network (for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element) refers to when processing a LAN session.
  • the LSMF network element sends the terminal's LAN subscription information and service area information corresponding to the LAN ID as configuration parameters to the UDM network element.
  • the UDM network element can directly send these information to the AMF network element, or based on the AMF network.
  • the request of the element sends these information to the AMF network element, which is used by the AMF network element to determine the LAN information of the terminal.
  • the LSMF network element configures all parameters required to generate the terminal's LAN information to the UDM network element.
  • the terminal needs to determine the terminal's LAN information, it can obtain it from the UDM network element together. These parameters.
  • the second configuration parameter sent by the LSMF network element to the UDM network element may also include service area information corresponding to the LAN ID.
  • the second configuration parameter may further include restriction information corresponding to the LAN ID and restriction information of the terminal.
  • the management method of LAN communication shown in FIG. 4 may be shown in FIG. 9.
  • the method includes the following steps.
  • the LSMF network element obtains the ID of the terminal, the LAN ID of the terminal, and service area information corresponding to the LAN ID.
  • the LSMF network element may also be obtained through S901.
  • the specific implementation of the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area information corresponding to the LAN ID in S901 is the same as the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area corresponding to the LAN ID in S401.
  • the specific implementation of the information is the same (obtained through a group management request), and the duplicates are not repeated here.
  • the LSMF network element selects a UDM network element according to the service area information corresponding to the LAN ID.
  • the UDM network element selected by the LSMF network element may be all UDM network elements in the service area indicated by the service area information corresponding to the LAN ID.
  • the LSMF network element may send the second configuration parameter to the LAN ID. All UDM network elements in the service area of the.
  • S903 The LSMF network element sends the second configuration parameter to the UDM network element.
  • the second configuration parameter includes the LAN ID, the service area information corresponding to the LAN ID, and the ID of the terminal.
  • the second configuration parameter may further include restriction information corresponding to the LAN ID and restriction information of the terminal.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the AMF network element may also obtain the restriction information in S904 for determining the Used when the terminal's LAN information.
  • the AMF network element determines the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the LAN information of the terminal includes LAN ID and LAN communication area information of the terminal.
  • the AMF network element also obtains the restriction information of the terminal or the restriction information corresponding to the LAN ID in S904, the LAN information of the terminal may also include these restriction information.
  • the terminal or network for example, AMF network element, SMF network element, UDM network Element or LSMF network element
  • AMF network element for example, AMF network element, SMF network element, UDM network Element or LSMF network element
  • the terminal manages the LAN communication of the terminal according to the LAN information.
  • the specific manner in which the terminal manages the LAN communication of the terminal according to the LAN information is the same as the specific manner in which the terminal manages the LAN communication of the terminal according to the LAN information in S406, and the repeated description is omitted.
  • network elements in the network can also manage the LAN communication of the terminal according to the LAN information of the terminal.
  • the specific implementation manner is also described in the method shown in FIG. 4, and will not be repeated here.
  • the AMF network element may obtain the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID based on different interaction processes with the terminal, and The LAN information of the terminal is sent to the terminal through different interaction processes.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID in step S904 with reference to the accompanying drawings.
  • the LSMF network element For a terminal that has been registered in the network, if the LSMF network element receives a group creation request or a group update request, it can notify the UDM network element of the contract information of the terminal, and the UDM network element sends a contract data update notification to the AMF network element. .
  • AMF network element can receive the terminal's contract data update notification, and the contract data update notification includes the terminal's LAN ID (that is, the contract data for the terminal's LAN communication in the LAN group has changed)
  • the contract data update notification includes the terminal's LAN ID (that is, the contract data for the terminal's LAN communication in the LAN group has changed)
  • an operation for determining the LAN information of the terminal is triggered, and the LAN information of the terminal is sent to the terminal through a configuration update message, so that the terminal can update the LAN information in time, and manage the terminal's LAN communication according to the latest LAN information.
  • the AMF network element obtains the registered area information of the terminal, the terminal ’s local area network identifier LAN ID, and the service area information corresponding to the LAN ID, which may be implemented in the following manner:
  • the AMF network element receives the The second contract data update notification, the second contract data update notification includes the LAN ID, the service area information corresponding to the LAN ID, and the terminal ID;
  • the AMF obtains the terminal registration area information according to the terminal ID carried in the second contract data update notification;
  • the AMF network element obtains the LAN ID and the service area information corresponding to the LAN ID carried in the second contract data update notification.
  • the AMF network element sends the terminal's LAN information to the terminal, which can be specifically implemented in the following manner:
  • the AMF network element sends a second configuration update message to the terminal, and the second configuration update message includes the terminal's LAN information.
  • the context of the terminal is stored in the AMF network element.
  • the AMF network element can obtain the second contract data by searching the context.
  • the registration area information corresponding to the ID of the terminal carried in the update notification that is, the registration area information of the terminal.
  • the AMF network element can also obtain the LAN ID and the service area information corresponding to the LAN ID carried in the second contract data update notification. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal from the UDM network element.
  • the UDM may directly update the second configuration parameter through the second subscription data update notification. Send to the AMF network element, so that the AMF network element can determine the LAN information of the registered terminal according to the second configuration parameter, and send the LAN information to the terminal, so that the registered terminal can perform LAN communication based on the LAN information of the terminal.
  • the restriction information may also be carried in the second contract data update notification so that the AMF network element can determine the terminal.
  • LAN information is used.
  • the AMF network element cannot send the LAN information of the terminal to the terminal through a configuration update process.
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when the terminal initiates a registration request, that is, request the UDM network element's contract data for the terminal, and determine the terminal's LAN based on the contract data returned by the UDM network element. Information, and then send the LAN information of the terminal to the terminal through a registration response message, so that the terminal can manage the LAN communication according to the LAN information after completing the registration process.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the first Two registration request messages, the second registration request message carries the ID of the terminal; the AMF network element sends a second subscription data request message to the UDM network element, and the second subscription data request message carries the ID of the terminal; the AMF network element receives the UDM network element
  • the second contract data response message sent, the second contract data response message carries the LAN ID and the service area information corresponding to the LAN ID; the AMF generates the registration area information of the terminal; the AMF network element obtains the LAN carried in the second contract data response message ID and service area information corresponding to LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the specific implementation manner may be: the AMF network element sends a second registration response message to the terminal, and the second registration response message includes the terminal's LAN information.
  • the AMF network element triggers an operation of determining the LAN information of the terminal.
  • the AMF network element dynamically generates the registration area information of the terminal requesting registration. Therefore, in the second method, the AMF network element can generate the registration of the terminal after receiving the second contract data response message. Area information.
  • the second contract data response message carries the LAN ID, which means that the UDM network element adds the terminal requesting registration to the LAN group identified by the LAN ID.
  • the LSMF network element When the LAN group is created, the LSMF network element has obtained the LAN ID of the LAN group and the service area information corresponding to the LAN ID and sent it to the UDM network element, so the UDM network element can respond to the message with the second contract data Send the service area information corresponding to the LAN ID to the AMF network element. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to generate the LAN information.
  • the second contract data response message may also carry the restriction information corresponding to the LAN ID and the terminal.
  • the restriction information is used by the AMF network element to determine the LAN information of the terminal.
  • the AMF can also trigger an operation to determine the LAN information of the terminal when the terminal initiates a PDU session management request, and send the terminal's LAN information to the terminal through a PDU session management response. In this way, the terminal can update the LAN information in time, and manage the LAN communication according to the latest LAN information.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the first Three PDU session management request, the third PDU session management request carries the LAN ID;
  • the AMF network element sends a seventh contract data request message to the UDM network element, and the seventh contract data request message carries the terminal ID and the LAN ID;
  • the AMF network element Receive the seventh contract data response message sent by the UDM network element, and the seventh contract data response message carries the service area information corresponding to the LAN ID;
  • the AMF network element obtains the terminal's registered area information from the context of the terminal;
  • the AMF network element obtains the first The LAN ID carried in the three PDU session management request, and the service area information corresponding to the LAN ID carried in the seventh subscription data response message is obtained.
  • the AMF network element sends the terminal's LAN information to the terminal, which can be specifically implemented in the following manner:
  • the AMF network element sends a third PDU session management response to the terminal, and the third PDU session management response includes the terminal's LAN information.
  • the third PDU session management request may be a PDU session establishment request, a PDU session modification request, or a PDU session release request.
  • the third PDU session management response may be a PDU session establishment response, a PDU session modification response, or a PDU session release response. .
  • the AMF network element triggers an operation of determining the LAN information of the terminal.
  • the registered terminal has established a separate signaling connection with the AMF network element. Therefore, after receiving the third PDU session management request on the dedicated channel between the AMF network element and the terminal, the AMF network element can know the terminal's The ID can further determine the registration area information of the terminal according to the context information saved when the terminal is registered.
  • the AMF network element can also obtain the LAN ID carried in the third PDU session management request, and the service area information corresponding to the LAN ID carried in the seventh subscription data response message. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal, which are needed to generate the LAN information.
  • the third PDU session management request sent by the terminal to the AMF network element carries the LAN ID, and its specific meaning may be:
  • the terminal wishes to perform LAN communication with the terminals in the LAN group, and the terminal may send the third PDU to the AMF network element.
  • the AMF network element triggers a process of determining the LAN information of the terminal after receiving the third PDU session management request.
  • the AMF network element responds to the third PDU session management request, it means that the terminal can perform LAN communication with the terminals in the LAN group.
  • the AMF network element After receiving the third PDU session management request, the AMF network element performs PDU session processing through interaction with the SMF network element, and then sends a third PDU session management response to the terminal. Since the PDU session processing flow is the prior art, it will not be described in detail in the embodiments of the present application.
  • the seventh subscription data request message sent by the AMF network element to the UDM network element may not only be used to request the service area information corresponding to the LAN ID, but also be used to authenticate the terminal.
  • the AMF network element may send a seventh subscription data request message to the UDM network element, and the seventh subscription data request message carries the terminal ID and the LAN ID;
  • the AMF network element receives the seventh contract data response message sent by the UDM network element, which carries the service area information corresponding to the LAN ID.
  • the AMF network element indicates that the terminal can perform LAN communication with the terminals in the LAN group. At this time, the AMF network element can be triggered to perform the operation of determining the LAN information of the terminal.
  • the seventh contract data response message may also carry the corresponding LAN ID.
  • the restriction information or the restriction information of the terminal is used by the AMF network element to determine the LAN information of the terminal.
  • the above three methods can be used separately for different terminals (that is, each terminal only uses one of the above three methods to achieve LAN information confirmation and reception), or the above three methods can be used for the same terminal. Any of several. For example, when a terminal initiates a registration request, the second method is used to determine the LAN information of the terminal. After the LAN group to which the terminal belongs is updated, the first method may be used to determine the updated LAN information of the terminal. In addition, when the terminal terminal initiates a PDU session management request, the AMF can also reconfirm the LAN information of the terminal and send the confirmed LAN information to the terminal so that the LAN information of the terminal can be updated in time.
  • Embodiment C compared with Embodiment A and Embodiment B, in Embodiment C, the LSMF network element sends the parameters required to determine the LAN information of the terminal to the UDM network element.
  • the network element is selectively sent to the AMF network element. Therefore, using the solution provided in Embodiment C will reduce the load of the AMF network element and increase the load of the UDM network element.
  • the solutions provided in Embodiment A, Embodiment B, or Embodiment C may be selected and executed for different scenarios.
  • the embodiment of the present application further provides a method for managing local area network communication.
  • This method can be regarded as a specific example of the method shown in FIG. 9. Referring to FIG. 10, the method includes the following steps.
  • the LSMF network element receives the group creation / update message from the NEF network element / AF network element, and obtains the local area network identification (LAN ID), service area information (servicearea) corresponding to the LAN ID, and the local area network group.
  • LAN ID local area network identification
  • servicearea service area information
  • the UE ID restriction information (restrictions1) of the UE, and restriction information (restrictions2) corresponding to the LAN ID.
  • the LSMF network element selects the UDM network element according to the service area information corresponding to the LAN ID.
  • the UDM network element selected by the LSMF network element may be all UDM network elements in the service area corresponding to the LAN ID.
  • the LSMF network element sends a configuration parameter 1 (Configure1) to the selected UDM network element, which carries the LAN ID, UE ID, service area, restrictions1 and restrictions2.
  • A For registered UEs in the group, the following methods can be used to update the LAN information of the UE
  • the UDM network element For the registered UEs in the Group, the UDM network element sends a subscription data update notification to the AMF network element serving the UE, which carries a LAN ID, UE ID, service area, restrictions1, and restrictions2.
  • the AMF network element serving the UE determines the registered area information of the UE according to the UE ID, and determines the LAN information of the UE according to the registered area information of the UE, service area, LAN ID, restrictions1, and restrictions2.
  • the AMF network element configures the LAN information to the UE through a UE configuration update command (UE Configuration Update Command) in the UE configuration update process.
  • UE Configuration Update Command UE Configuration Update Command
  • the UE configuration update instruction may be regarded as a specific example of the second configuration update message.
  • the UE sends a registration request message to the AMF network element, which carries the UE ID.
  • the AMF network element sends a contract data request (carrying the UE ID) to the UDM network element, and the UDM network element returns a contract data response message; if the UE has subscribed to this LAN service, the contract data response message obtained by the AMF network element carries the UE's contract LAN ID, service area, restrictions 1 and restrictions 2; the AMF network element determines the UE's LAN information according to the registration area information dynamically generated for the UE in the registration process, the service area information corresponding to the LAN ID, the LAN ID, restrictions 1 and restrictions 2.
  • the AMF network element configures the LAN information to the UE through a registration response (registration response) message.
  • the UE sends a non-access layer message to the AMF network element.
  • the NASMessage carries a session ID, a LAN ID, and a PDU session management request.
  • the PDU session management request may be a session creation request or a session modification. Request or session release request.
  • the AMF network element sends a contract data request (carrying the UE ID and LAN ID) to the UDM network element, and the UDM network element returns a contract data response message, which can carry service area, restriction1 and restriction2; the AMF network element according to the LAN ID, locally The registered area information, service areas, restrictions1, and restrictions2 of the UE found in the context determine the LAN information.
  • the AMF network element may request the SMF network element to process the session management request according to the existing session flow.
  • the AMF network element sends a non-access stratum message (NAS message) to the UE.
  • NAS message carries a session ID (Session ID), LAN information, and a PDU session management response, thereby configuring the LAN information to the UE.
  • the PDU session management response can be obtained from the SMF network element.
  • the LAN ID in the UE can be used as the LADN and DNN.
  • a similar mechanism of multiplexing LADN is used to restrict the LAN session of the UE, thereby restricting the UE from using the 5GLAN service.
  • the AMF network element and the SMF network element can also use the LAN ID as the LADN and DNN, and use a similar mechanism of the LADN to process the UE's LAN session.
  • the LAN information of the UE may further include restriction1 and restriction2, which is information that the UE or a network (for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element) refers to when processing a LAN session.
  • restriction1 and restriction2 is information that the UE or a network (for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element) refers to when processing a LAN session.
  • the LSMF network element does not send configuration parameters to the UDM network element, but saves the terminal's LAN contract information and service area information corresponding to the LAN ID, and then the LSMF network element can directly store the information
  • the information is sent to the AMF network element, or the information is sent to the AMF network element based on the request of the AMF network element for the AMF network element to determine the LAN information of the terminal for use.
  • the management method of LAN communication shown in FIG. 4 may be shown in FIG. 11.
  • the method includes the following steps.
  • the LSMF network element obtains the ID of the terminal, the LAN ID of the terminal, and service area information corresponding to the LAN ID.
  • the LSMF network element can also be obtained through S1101.
  • the specific implementation of the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area information corresponding to the LAN ID in S1101 is the same as the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area corresponding to the LAN ID in S401.
  • the specific implementation of the information is the same (obtained through a group management request), and the duplicates are not repeated here.
  • the AMF network element obtains the registered area information of the terminal, the LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the AMF network element may also obtain the restriction information in S1102 for determining the Used when the terminal's LAN information.
  • the AMF network element determines the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the LAN information of the terminal includes LAN ID and LAN communication area information of the terminal.
  • the AMF network element also obtains the restriction information of the terminal or the restriction information corresponding to the LAN ID in S1102, the LAN information of the terminal may also include these restriction information.
  • the terminal or network (such as AMF network element, SMF network element, UDM network Element or LSMF network element) when managing the terminal's LAN communication based on the LAN information, it is also necessary to consider these restriction information. For the specific manner, refer to the foregoing description of the LAN information of the terminal, which will not be repeated here.
  • S1105 The terminal manages the LAN communication of the terminal according to the LAN information.
  • network elements in the network can also manage the LAN communication of the terminal according to the LAN information of the terminal.
  • the specific implementation manner is also described in the method shown in FIG. 4, and will not be repeated here.
  • the AMF network element may obtain the LAN ID of the terminal and the service area information corresponding to the LAN ID based on different interaction processes with the LSMF network element.
  • the LSMF network element may directly send the terminal ’s LAN ID and service area information corresponding to the LAN ID to the AMF network element through a configuration update message, so that the AMF network element determines the LAN information.
  • the LSMF network element can send the terminal's LAN ID and service area information corresponding to the LAN ID to the AMF network element for determination by the AMF network element.
  • LAN information For example, for a terminal that is not registered in the network, when the terminal initiates a registration request, the LSMF network element can send the terminal's LAN ID and service area information corresponding to the LAN ID to the AMF network element for determination by the AMF network element.
  • the LSMF may also send the terminal ’s LAN ID and service area information corresponding to the LAN ID to the AMF network element for the AMF network element to determine the LAN information.
  • the registration area information of the terminal is generated and saved by the AMF network element, the registration area information of the terminal obtained by the AMF network element in S1102 can come from the local area.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID in step S1102 with reference to the accompanying drawings.
  • the LSMF network element For a terminal that has been registered in the network, if the LSMF network element receives a group creation request or a group update request, it will send a subscription data update notification to the AMF network element.
  • AMF network element can receive the terminal's contract data update notification, and the contract data update notification includes the terminal's LAN ID (that is, the contract data for the terminal's LAN communication in the LAN group has changed)
  • the LAN information of the terminal is sent to the terminal through a configuration update message, so that the terminal can update the LAN information in time, and manage the terminal's LAN communication according to the latest LAN information.
  • the AMF network element obtains the registered area information of the terminal, the terminal ’s local area network identifier LAN ID, and the service area information corresponding to the LAN ID, which may be implemented in the following manner:
  • the AMF network element receives the information sent by the LSMF network element.
  • the second contract data update notification, the second contract data update notification includes the LAN ID, the service area information corresponding to the LAN ID, and the terminal ID;
  • the AMF obtains the terminal registration area information according to the terminal ID carried in the second contract data update notification;
  • the AMF network element obtains the LAN ID and the service area information corresponding to the LAN ID carried in the second contract data update notification.
  • the AMF network element sends the terminal's LAN information to the terminal, which can be specifically implemented in the following manner:
  • the AMF network element sends a second configuration update message to the terminal, and the second configuration update message includes the terminal's LAN information.
  • the context of the terminal is stored in the AMF network element.
  • the AMF network element can obtain the second contract data by searching the context.
  • the registration area information corresponding to the ID of the terminal carried in the update notification that is, the registration area information of the terminal.
  • the AMF network element can also obtain the LAN ID and the service area information corresponding to the LAN ID carried in the second contract data update notification. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal from the LSMF network element.
  • the LSMF determines that the terminal is registered in the network, and the LSMF network element can directly send the LAN ID, the service area information corresponding to the LAN ID, and the terminal ID to the AMF network through the second contract data update notification. So that the AMF network element can determine the LAN information of the registered terminal according to the LAN ID, the service area information corresponding to the LAN ID, and the terminal ID, and send the LAN information to the terminal, so that the registered terminal can perform the operation based on the LAN information of the terminal.
  • LAN communication the AMF network element
  • the second subscription data update notification received by the AMF network element may further include restriction information corresponding to the LAN ID or restriction information of the terminal.
  • the AMF network element can trigger the operation of determining the LAN information of the terminal when the terminal initiates a registration request, that is, it requests the LSMF network element for information such as LAN ID, service area information corresponding to the LAN ID, and the information returned by the LSMF network element.
  • the information determines the LAN information of the terminal, and then sends the LAN information of the terminal to the terminal through a registration response message, so that the terminal can manage the LAN communication according to the LAN information after completing the registration process.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the first Two registration request messages, the second registration request message carries the ID of the terminal; the AMF network element sends a second subscription data request message to the LSMF network element, and the second subscription data request message carries the ID of the terminal; the AMF network element receives the LSMF network element
  • the second contract data response message sent, the second contract data response message carries the LAN ID and the service area information corresponding to the LAN ID;
  • the AMF network element generates the registration area information of the terminal;
  • the AMF network element obtains the second contract data response message carrying LAN ID and service area information corresponding to LAN ID.
  • the AMF network element may receive a second registration request message sent by the terminal, where the second registration request message carries the ID of the terminal.
  • the AMF network element may obtain the LAN instruction information of the terminal from the second registration request message, or the AMF network element may also obtain the LAN subscription information of the terminal from the UDM network element, where the LAN instruction information or LAN subscription information is used to indicate the The terminal needs to use the LAN service indicated by the LAN ID.
  • the LAN indication information may be a LAN ID.
  • the LAN ID is used to indicate that the terminal needs to use a LAN service corresponding to the LAN ID.
  • the LAN instruction information or the LAN subscription information is a binary instruction used to indicate that the terminal needs to use the LAN service indicated by the LAN ID.
  • the AMF network element When the AMF network element receives the LAN instruction information carried in the second registration request message or the LAN contract information of the terminal sent by the UDM network element, it is determined that the terminal needs to use the LAN service indicated by the LAN ID to enable the AMF network The element requests the LSMF network element to obtain the local area network identification LAN ID of the terminal and the service area information corresponding to the LAN ID.
  • the AMF network element sends the terminal's LAN information to the terminal.
  • the specific implementation manner may be: the AMF network element sends a second registration response message to the terminal, and the second registration response message includes the terminal's LAN information.
  • the AMF network element triggers an operation of determining the LAN information of the terminal.
  • the AMF network element dynamically generates the registration area information of the terminal requesting registration. Therefore, in the second method, the AMF network element can generate the registration of the terminal after receiving the second contract data response message. Area information.
  • the second contract data response message carries the LAN ID, which means that the LSMF network element adds the terminal requesting registration to the LAN group identified by the LAN ID.
  • the LSMF network element has obtained the LAN ID of the LAN group and the service area information corresponding to the LAN ID.
  • the LSMF network element can send the service corresponding to the LAN ID through the second contract data response message.
  • the area information is sent to the AMF network element. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to generate the LAN information.
  • the second subscription data response message received by the AMF network element further includes restriction information corresponding to the LAN ID and restriction information of the terminal.
  • the AMF network element can also trigger an operation to determine the LAN information of the terminal when the terminal initiates a PDU session management request, and send the terminal's LAN information to the terminal through a PDU session management response. Terminal, so that the terminal can update the LAN information in time, and manage the LAN communication according to the latest LAN information.
  • the AMF network element obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, which can be implemented in the following manner:
  • the AMF network element receives the first Three PDU session management request, the third PDU session management request carries the LAN ID;
  • the AMF network element sends a seventh contract data request message to the LSMF network element, and the seventh contract data request message carries the terminal ID and the LAN ID;
  • the AMF network element Receive the seventh contract data response message sent by the LSMF network element, and the seventh contract data response message carries the service area information corresponding to the LAN ID;
  • the AMF network element obtains the terminal's registered area information from the context of the terminal;
  • the AMF network element obtains the first The LAN ID carried in the three PDU session management request, and the service area information corresponding to the LAN ID carried in the seventh subscription data response message is obtained.
  • the AMF network element sends the terminal's LAN information to the terminal, which can be specifically implemented in the following manner:
  • the AMF network element sends a third PDU session management response to the terminal, and the third PDU session management response includes the terminal's LAN information.
  • the third PDU session management request may be a PDU session establishment request, a PDU session modification request, or a PDU session release request.
  • the third PDU session management response may be a PDU session establishment response, a PDU session modification response, or a PDU session release response. .
  • the AMF network element triggers an operation of determining the LAN information of the terminal.
  • the registered terminal has established a separate signaling connection with the AMF network element. Therefore, after receiving the third PDU session management request on the dedicated channel between the AMF network element and the terminal, the AMF network element can know the terminal's The ID can further determine the registration area information of the terminal according to the context information saved when the terminal is registered.
  • the AMF network element can also obtain the LAN ID carried in the third PDU session management request, and the service area information corresponding to the LAN ID carried in the seventh subscription data response message. So far, the AMF network element has obtained the LAN ID, the service area information corresponding to the LAN ID, and the registered area information of the terminal required to obtain the LAN information.
  • the third PDU session management request sent by the terminal to the AMF network element carries the LAN ID.
  • the specific meaning may be that the terminal wishes to perform LAN communication with the terminals in the LAN group, and the terminal may send the third PDU to the AMF network element.
  • the AMF network element triggers a process of determining the LAN information of the terminal after receiving the third PDU session management request.
  • the AMF network element responds to the third PDU session management request, it means that the terminal can perform LAN communication with the terminals in the LAN group.
  • the AMF network element After receiving the third PDU session management request, the AMF network element performs PDU session processing through interaction with the SMF network element, and then sends a third PDU session management response to the terminal. Since the PDU session processing flow is the prior art, it will not be described in detail in the embodiments of the present application.
  • the seventh contract data request message sent by the AMF network element to the LSMF network element can be used not only to request for obtaining service area information corresponding to the LAN ID, but also to authenticate the terminal.
  • the AMF network element may send a seventh contract data request message to the LSMF network element, and the seventh contract data request message carries the terminal ID and the LAN ID;
  • the AMF network element receives the seventh contract data response message sent by the LSMF network element, which carries the service area information corresponding to the LAN ID.
  • the AMF network element indicates that the terminal can perform LAN communication with the terminals in the LAN group. At this time, the AMF network element can be triggered to perform the operation of determining the LAN information of the terminal.
  • the seventh subscription data response message received by the AMF network element may further carry restriction information corresponding to the LAN ID or the restriction information of the terminal, so that the AMF network element may use it when determining the LAN information of the terminal. .
  • the above three methods can be used separately for different terminals (that is, each terminal only uses one of the above three methods to achieve LAN information confirmation and reception), or the above three methods can be used for the same terminal. Any of several. For example, when a terminal initiates a registration request, the second method is used to determine the LAN information of the terminal. After the LAN group to which the terminal belongs is updated, the first method may be used to determine the updated LAN information of the terminal. In addition, when the terminal terminal initiates a PDU session management request, the AMF can also reconfirm the LAN information of the terminal and send the confirmed LAN information to the terminal so that the LAN information of the terminal can be updated in time.
  • the LSMF network element sends information (second configuration parameter) required to determine the LAN information of the terminal.
  • the UDM network element is forwarded by the UDM network element directly or based on the request of the AMF network element.
  • the LSMF network element does not send the second configuration parameter to the UDM network element, but the LSMF network element sends the AMF network element directly or based on the request of the AMF network element to determine the LAN information of the terminal.
  • Information LAN ID, service area information corresponding to LAN ID, etc.
  • the solution provided in the embodiment D can reduce the load of the UDM network element.
  • the solutions provided in Embodiment A, Embodiment B, Embodiment C, or Embodiment D may be selected and executed for different scenarios.
  • the embodiment of the present application further provides a method for managing local area network communication.
  • This method can be regarded as a specific example of the method shown in FIG. 11. Referring to FIG. 12, the method includes the following steps.
  • the LSMF network element receives the group creation / update message from the NEF network element / AF network element, and obtains the local area network identification (LAN ID), service area information (servicearea) corresponding to the LAN ID, and the local area network group.
  • LAN ID local area network identification
  • servicearea service area information
  • the UE ID restriction information (restrictions1) of the UE, and restriction information (restrictions2) corresponding to the LAN ID.
  • the LSMF network element For registered UEs in a group, the LSMF network element sends a subscription data update notification to the AMF network element serving the UE, which carries the LAN ID, UE ID, service area, restrictions1, and restrictions2.
  • the AMF network element serving the UE determines the registered area information of the UE according to the UE ID, and determines the LAN information of the UE according to the registered area information of the UE, service area, LAN ID, restrictions1, and restrictions2.
  • the AMF network element configures the LAN information to the UE through a UE configuration update command (UE Configuration Update Command) in the UE configuration update process.
  • UE Configuration Update Command UE Configuration Update Command
  • the UE configuration update instruction may be regarded as a specific example of the second configuration update message.
  • the UE sends a registration request message to the AMF network element, which carries the UE ID.
  • the AMF network element obtains the UE's LAN indication information from the registration request message or the UDM network element to obtain the UE's LAN subscription information, triggers the AMF network element to send a contract data request (carrying the UE ID) to the LSMF network element, and the LSMF network element returns Subscription data response message; if the UE has subscribed to this LAN service, the subscription data response message obtained by the AMF network element carries the UE's subscription LAN ID, service area, restriction1, and restriction2; the AMF network element dynamically generates the registration for the UE during the registration process
  • the area information, the service area information corresponding to the LAN ID, the LAN ID, restrictions1, and restrictions2 determine the LAN information of the UE.
  • the AMF network element configures the LAN information to the UE through a registration response (registration response) message.
  • the UE sends a non-access stratum message to the AMF network element.
  • the NASMessage carries a session ID, a LAN ID, and a PDU session management request.
  • the PDU session management request may be a session creation request or a session modification. Request or session release request.
  • AMF network element sends a contract data request (carrying UE ID and LAN ID) to the LSMF network element, and the LSMF network element returns a contract data response message, which can carry service area, restriction1 and restriction2; the AMF network element locally according to the LAN ID, The registered area information, service areas, restrictions1, and restrictions2 of the UE found in the context determine the LAN information.
  • the AMF network element may request the SMF network element to process the session management request according to the existing session flow.
  • the AMF network element sends a non-access stratum message (NAS message) to the UE, and the NAS message carries a session ID (Session ID), LAN information, and PDU session management response, thereby configuring the LAN information to the UE.
  • NAS message non-access stratum message
  • Session ID Session ID
  • LAN information LAN information
  • PDU session management response thereby configuring the LAN information to the UE.
  • the PDU session management response can be obtained from the SMF network element.
  • the LAN ID in the UE can be used as the LADN and DNN.
  • a similar mechanism of multiplexing the LADN is used to restrict the LAN session of the UE, thereby restricting the UE from using the 5GLAN service.
  • the AMF network element and the SMF network element can also use the LAN ID as the LADN and DNN, and use a similar mechanism of the LADN to process the UE's LAN session.
  • the LAN information of the UE may further include restrictions1 and restrictions2, which are information that the UE or a network (for example, an AMF network element, an SMF network element, an LSMF network element, or a UDM network element) references when processing a LAN session.
  • restrictions1 and restrictions2 are information that the UE or a network (for example, an AMF network element, an SMF network element, an LSMF network element, or a UDM network element) references when processing a LAN session.
  • a method for managing local area network communication includes the following steps:
  • the LSMF network element obtains the registered area information of the terminal, the terminal ID, the local area network identification LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the specific implementation of the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area information corresponding to the LAN ID in S1301 is the same as the LSMF network element obtaining the terminal ID, the terminal ’s LAN ID, and the service area corresponding to the LAN ID in S401.
  • the specific implementation of the information is the same (obtained through a group management request), and the duplicates are not repeated here.
  • the ID of the terminal obtained by the LSMF network element in S1301 is the ID of the group member of the LAN group identified by the LAN ID, and the terminal and the designated terminal for sending a group management request to the LSMF network element are not necessarily contact.
  • the LSMF network element can obtain a terminal list (UE list), which includes the IDs of all the terminals in the LAN group identified by the LAN ID.
  • the AMF network element can subsequently be used in different scenarios.
  • the LAN information of a certain terminal in the terminal list is determined, and the terminal indicated by the terminal ID obtained in S401 is the terminal whose subsequent LAN information needs to be determined.
  • the LSMF network element may also be obtained through S1301.
  • the registration area information of the terminal is generated and saved by the AMF network element
  • the registration area information of the terminal obtained by the LSMF network element in S1301 can come from the AMF network element, for example, the AMF network element sends a LAN information acquisition request to the LSMF network element.
  • the registered area information of the terminal may be carried in the terminal. The related content will be described later in the description of the LAN information acquisition request, and is not repeated here.
  • the LSMF network element determines the LAN communication area information of the terminal according to the registered area information and the service area information corresponding to the LAN ID.
  • the condition that triggers the LSMF network element to determine the LAN information of the terminal may be that the AMF network element sends a LAN information acquisition request to the LSMF network element to request to acquire the LAN information of the terminal. That is, before the LSMF network element determines the LAN communication area information of the terminal according to the registered area information of the terminal and the service area information corresponding to the LAN ID, the LSMF network element can receive the LAN information acquisition request sent by the AMF network element.
  • the LAN information The acquisition request is used to request the LAN information of the terminal.
  • the LAN information acquisition request carries the LAN ID, the terminal ID, and the registered area information of the terminal.
  • the LSMF network element sends the terminal's LAN information to the AMF network element.
  • the specific implementation method may be: the LSMF network element sends a LAN information acquisition response to the AMF network element, and the LAN information acquisition response carries the LAN information of the terminal.
  • the AMF network element since the registration area information of the terminal is generated and saved by the AMF network element, and the LSMF network element determines the LAN information of the terminal based on the registration area information of the terminal, the AMF network element sends the LSMF network element In the LAN information acquisition request, the registered area information of the terminal needs to be carried.
  • AMF network element There are multiple conditions that trigger the AMF network element to send a LAN information acquisition request to the LSMF network element.
  • the following examples illustrate three situations in which AMF network elements are triggered to send LAN information acquisition requests to LSMF network elements.
  • the LSMF network element sends a contract data update notification to the AMF network element, and the contract data update notification includes the LAN ID of the registered terminal (that is, the contract data for the LAN communication of the terminal in the LAN group has changed), then, The AMF network element needs to update the LAN information of the terminal. At this time, the AMF network element may send a LAN information acquisition request to the LSMF network element to request to obtain the LAN information of the terminal.
  • the AMF network element may receive a contract data update notification sent by the LSMF network element, and the contract data update notification includes the LAN ID and the terminal ID; the AMF network element determines the terminal Registered in the group corresponding to the LAN ID. Then, the AMF network element sends a configuration update message to the terminal, and the configuration update message carries the LAN information of the terminal.
  • the LSMF network element will notify the AMF network element through the contract data update notification.
  • the AMF network element requests the LSMF network element to obtain the LAN information of the terminal, and the terminal can be updated in time.
  • the LAN information of the terminal enables the terminal or network (such as AMF network element, SMF network element, UDM network element or LSMF network element) to manage the terminal's local area network communication according to the updated LAN information.
  • the AMF network element receives a registration request message from an unregistered terminal. At this time, the AMF network element can send a LAN information acquisition request to the LSMF network element to request the LAN information of the terminal, so that the terminal can complete the registration process based on the LAN. Information management of LAN communication.
  • the AMF network element may receive a registration request message sent by the terminal, and the registration request message also carries the ID of the terminal.
  • the AMF network element may obtain the LAN instruction information of the terminal from the registration request message, or the AMF network element may also obtain the LAN subscription information of the terminal from the UDM network element, where the LAN instruction information or LAN subscription information is used to indicate that the terminal needs to use the described LAN ID indicates the LAN service.
  • the LAN indication information may be a LAN ID.
  • the LAN ID is used to indicate that the terminal needs to use a LAN service corresponding to the LAN ID.
  • the LAN indication information or the LAN contract information is a binary indication used to indicate that the terminal needs to use the LAN service indicated by the LAN ID.
  • the AMF network element When the AMF network element receives the LAN instruction information carried in the registration request message or the LAN contract information of the terminal sent by the UDM, it is determined that the terminal needs to use the LAN service indicated by the LAN ID.
  • the AMF network element can send a LAN information acquisition request to the LSMF network element to obtain the LAN information of the terminal, so that the terminal or network (such as AMF network element, SMF network element, UDM network element or LSMF) Network element) to manage the LAN communication of the terminal according to the LAN information.
  • the AMF can also send a LAN information acquisition request to the LSMF network element when the terminal initiates a PDU session management request to request the LAN information of the terminal, and send the LAN information through the PDU session management response.
  • the LAN information of the terminal is sent to the terminal, so that the terminal can update the LAN letter in time. It also manages LAN communications based on the latest LAN information.
  • the AMF network element may receive a PDU session management request sent by the terminal, and the PDU session management request carries a LAN ID; the AMF network element determines the terminal according to the PDU session management request ID. Then, the AMF network element sends a PDU session management response message to the terminal, and the PDU session management response message carries the LAN information of the terminal.
  • the PDU session management request may be a PDU session establishment request, a PDU session modification request, or a PDU session release request.
  • the PDU session management response may be a PDU session establishment response, a PDU session modification response, or a PDU session release response.
  • the AMF network element requests the LSMF network element to obtain the LAN information of the terminal, so that the LAN information of the terminal is updated in time, so that the terminal or the network (such as AMF network element, SMF network element) , UDM network element or LSMF network element) can manage the local area network communication of the terminal according to the updated LAN information.
  • the LSMF network element sends the LAN information of the terminal to the AMF network element.
  • the LAN information of the terminal includes LAN ID and LAN communication area information of the terminal.
  • the terminal's LAN communication area information can be regarded as the intersection of the terminal's registered area information and the service area information corresponding to the LAN ID. That is, the LAN communication area of the terminal can be regarded as the intersection area of the registration area of the terminal and the service area corresponding to the LAN ID. If the restricted information of the terminal includes information on the permitted communication area, the LAN communication area information of the terminal can be regarded as the intersection of the service area information corresponding to the LAN ID, the registered area information of the terminal, and the permitted communication area information of the terminal. That is, the LAN communication area of the terminal can be regarded as the intersection area of the terminal's registration area, the service area corresponding to the LAN ID, and the terminal's permitted communication area.
  • the LAN information of the terminal may also include the restriction information corresponding to the LAN ID and the restriction information of the terminal, such as the terminal or the network (for example, (AMF network element, SMF network element, UDM network element or LSMF network element)
  • the restriction information corresponding to the LAN ID and the restriction information of the terminal, such as the terminal or the network (for example, (AMF network element, SMF network element, UDM network element or LSMF network element)
  • the network for example, (AMF network element, SMF network element, UDM network element or LSMF network element
  • the AMF network element sends the LAN information of the terminal to the terminal.
  • S1305 The terminal manages the LAN communication of the terminal according to the LAN information.
  • the manner in which the terminal manages the LAN communication of the terminal according to the LAN information of the terminal is the same as the manner in which the terminal manages the LAN communication of the terminal according to the LAN information of the terminal in S406.
  • the terminal manages the LAN communication of the terminal according to the LAN information of the terminal is the same as the manner in which the terminal manages the LAN communication of the terminal according to the LAN information of the terminal in S406.
  • the LSMF network element does not send the parameters required to determine the LAN information of the terminal to the UDM network element or the AMF network element.
  • the AMF network element sends a LAN information acquisition request carrying the parameters such as LAN ID, terminal ID, and terminal registration area information to the LSMF network element, and the LSMF network element determines the LAN information of the terminal And send it to the AMF network element. It is not difficult to see that using the solution provided in the second embodiment will reduce the load of the AMF network element and the UDM network element and increase the load of the LSMF network element. In practical applications, the solutions provided in the first embodiment or the second embodiment may be selected and executed for different scenarios.
  • the embodiment of the present application further provides a method for managing local area network communication.
  • This method can be regarded as a specific example of the method shown in FIG. 13. Referring to FIG. 14, the method includes the following steps.
  • the LSMF network element receives the group creation / update message from the NEF network element / AF network element, and obtains the local area network identification (LAN ID), the service area information (service area) corresponding to the LAN ID, and the local area network group.
  • LAN ID local area network identification
  • service area service area
  • UE ID restriction information
  • restriction information restriction information of the UE
  • restriction information restriction information
  • the LSMF network element creates / updates the service area information of the group, and selects the AMF network element according to the service area information corresponding to the LAN ID.
  • the AMF network element selected by the LSMF network element may be all AMF network elements in the service area corresponding to the LAN ID.
  • the LSMF network element sends a configuration parameter 2 (Configure2) to the selected AMF network element, which carries a LAN ID and a UE ID.
  • Configure2 a configuration parameter 2
  • the AMF network element determines that the UE is registered.
  • the AMF network element sends a LAN information acquisition request to the LSMF network element to request acquisition of the UE's LAN information, which carries the UE's LAN ID, UE ID, and registered area information of the UE.
  • the LSMF network element determines the service area information corresponding to the LAN ID according to the LAN ID, and then determines the LAN information of the UE according to the registered area information of the UE, the service area information corresponding to the LAN ID, LAN ID, restrictions 1 and restrictions 2. Then, the LSMF network element sends the LAN information of the UE to the AMF through a LAN information acquisition response message.
  • the AMF network element configures the LAN information to the UE through a UE configuration update command (UE Configuration Update Command) in the UE configuration update process.
  • UE Configuration Update Command UE Configuration Update Command
  • the UE configuration update instruction may be regarded as a specific example of a configuration update message in the method shown in FIG. 13.
  • the UE sends a registration request message to the AMF network element, which carries the UE ID and LAN indication information.
  • the AMF network element selects the LSMF network element according to the LAN instruction information, and sends a LAN information acquisition request to the selected LSMF network element to request the LAN information of the UE, which carries the UE's LAN ID, UE ID, and the UE's Registration area information.
  • the LSMF network element determines the service area information corresponding to the LAN ID according to the LAN ID, and then determines the LAN information of the UE according to the registered area information of the UE, the service area information corresponding to the LAN ID, LAN ID, restrictions 1 and restrictions 2. Then, the LSMF network element sends the LAN information of the UE to the AMF network element through a LAN information acquisition response message.
  • the AMF network element configures the UE's LAN information to the UE through a registration response (registration response) message.
  • the UE sends a non-access stratum message to the AMF network element.
  • the NASMessage carries a session ID, a LAN ID, and a PDU session management request.
  • the PDU session management request may be a signaling creation request or a session. Modify request or session release request.
  • the AMF network element sends a LAN information acquisition request to the LSMF network element to request to obtain the LAN information of the UE, which carries the LAN ID of the UE, the UE ID, and the registered area information of the UE.
  • the LSMF network element determines the service area information corresponding to the LAN ID according to the LAN ID, and then determines the LAN information of the UE according to the registered area information of the UE, the service area information corresponding to the LAN ID, LAN ID, restrictions 1 and restrictions 2. Then, the LSMF network element sends the LAN information of the UE to the AMF through a LAN information acquisition response message.
  • the AMF network element sends an SMContext management request (carrying Session ID, LAN Information, PDU session management request) message to the SMF network element.
  • the SMContext management request can be a SMContext creation request, a SMContext update request, or a SMContext release request;
  • the SMF network element handles the LAN session;
  • the SMF network element sends an SMContext management response to the AMF network element (carrying a Session ID, a PDU session management response (carrying LAN information)) Message;
  • SMContext management response can be SMContext creation response, SMContext update response, or SMContext release response.
  • the AMF network element sends a non-access layer message (NAS message) to the UE.
  • NAS message carries a session ID (Session ID) and a PDU session management response (carries LAN information), thereby configuring the UE's LAN information to the UE.
  • Session ID session ID
  • PDU session management response carries LAN information
  • the LAN ID in the UE can be used as the LADN and the DNN.
  • a similar mechanism of multiplexing the LADN is used to restrict the LAN session of the UE, thereby restricting the UE from using the 5GLAN service.
  • the AMF network element and the SMF network element can also use the LAN ID as the LADN and DNN, and use a similar mechanism of the LADN to process the UE's LAN session.
  • the LAN information of the UE may further include restriction1 and restriction2, which is information that the UE or a network (for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element) refers to when processing a LAN session.
  • restriction1 and restriction2 is information that the UE or a network (for example, an AMF network element, an SMF network element, a UDM network element, or an LSMF network element) refers to when processing a LAN session.
  • an embodiment of the present application further provides a management device for local area network communication.
  • This device may perform the same operations as those performed by the AMF network element in the method shown in FIG. 4.
  • the apparatus 1500 includes a processing unit 1501 and a sending unit 1502.
  • the processing unit 1501 is configured to obtain the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the processing unit 1501 is further configured to determine the LAN communication area information of the terminal according to the registered area information and the service area information corresponding to the LAN ID.
  • the sending unit 1502 is configured to send the LAN information of the terminal to the terminal.
  • the LAN information of the terminal includes the LAN ID and the LAN communication area information of the terminal.
  • the device 1500 further includes a receiving unit configured to receive the first configuration parameter sent by the LSMF network element before the processing unit 1501 obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID.
  • the first configuration parameter includes LAN ID and service area information corresponding to the LAN ID.
  • the processing unit 1501 after receiving the first configuration parameter sent by the LSMF network element, when the processing unit 1501 obtains the registered area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, there may be two specific methods. .
  • the processing unit 1501 receives the fourth contract data update notification sent by the UDM network element through the receiving unit, and the fourth contract data update notification includes the LAN ID and the terminal ID; the processing unit 1501 obtains the registration area information of the terminal according to the terminal ID; the processing unit 1501 Acquire the LAN ID carried in the fourth contract data update notification, and obtain service area information corresponding to the LAN ID according to the first configuration parameter.
  • the sending unit 1502 when sending the terminal's LAN information to the terminal, is specifically configured to send the sending unit 1502 to the terminal with a third configuration update message, and the third configuration update message includes the terminal's LAN information.
  • the processing unit 1501 receives the third registration request message sent by the terminal through the receiving unit, and the third registration request message carries the ID of the terminal; the processing unit 1501 sends the fourth contract data request message to the UDM network element through the sending unit 1502, and the fourth contract data
  • the request message carries the ID of the terminal; the processing unit 1501 receives the fourth subscription data response message sent by the UDM network element through the receiving unit, and the fourth subscription data response message carries the LAN ID; the processing unit 1501 generates the registration area information of the terminal; the processing unit 1501 Obtain the LAN ID carried in the fourth subscription data response message, and obtain service area information corresponding to the LAN ID according to the first configuration parameter.
  • the sending unit 1502 when sending the terminal's LAN information to the terminal, is specifically configured to send the sending unit 1502 to the terminal with a third registration response message, and the third registration response message carries the LAN information of the terminal.
  • the processing unit 1501 receives the first PDU session management request sent by the terminal through the receiving unit, and the first PDU session management request carries the LAN ID; the processing unit 1501 obtains the registration area information of the terminal from the context of the terminal; the processing unit 1501 obtains the first The LAN ID carried in the PDU session management request, and the service area information corresponding to the LAN ID is acquired according to the first configuration parameter.
  • the sending unit 1502 when the sending unit 1502 sends the terminal's LAN information to the terminal, the sending unit 1502 is specifically configured to send the first PDU session management response to the terminal, where the first PDU session management response carries the terminal's LAN information.
  • the processing unit 1501 obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID in various ways. Six of them are listed below.
  • the processing unit 1501 is specifically configured to: when acquiring the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, the processing unit 1501 receives the first contract data update notification sent by the UDM network element through the receiving unit, The first contract data update notification includes the LAN ID and the ID of the terminal; the processing unit 1501 obtains the registered area information of the terminal according to the terminal ID; the processing unit 1501 sends a first request message to the LSMF network element through the sending unit 1502.
  • the first request message is used to request to obtain the service area information corresponding to the LAN ID; the processing unit 1501 receives the first response message sent by the LSMF network element through the receiving unit, and the first response message carries the service area information corresponding to the LAN ID .
  • the sending unit 1502 when the sending unit 1502 sends the terminal's LAN information to the terminal, the sending unit 1502 is specifically configured to send the first configuration update message to the terminal, where the first configuration update message includes the terminal's LAN information.
  • the processing unit 1501 When the processing unit 1501 acquires the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, the processing unit 1501 is specifically configured to receive the first registration request message and the first registration sent by the terminal through the receiving unit.
  • the request message carries the ID of the terminal; the processing unit 1501 sends the first contract data request message to the UDM network element through the sending unit 1502, and the first contract data request message carries the ID of the terminal; the processing unit 1501 receives the UDM network element sent through the receiving unit
  • the first contract data response message, the first contract data response message carries the LAN ID;
  • the processing unit 1501 generates the registration area information of the terminal;
  • the processing unit 1501 sends a second request message to the LSMF network element through the sending unit 1502, and the second request message LAN ID is carried in the second request message for requesting to obtain service area information corresponding to the LAN ID;
  • the processing unit 1501 receives the second response message sent by the LSMF network element through the receiving unit, and the second response message carries the service corresponding to the LAN ID
  • the sending unit 1502 when the sending unit 1502 sends the terminal's LAN information to the terminal, the sending unit 1502 is specifically configured to send the first registration response message to the terminal, where the first registration response message carries the terminal's LAN information.
  • the processing unit 1501 is specifically configured to: when acquiring the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, the processing unit 1501 receives the second PDU session management request sent by the terminal through the receiving unit, and the second The PDU session management request carries the LAN ID; the processing unit 1501 obtains the registered area information of the terminal from the context of the terminal; the processing unit 1501 sends a fourth request message to the LSMF network element through the sending unit 1502, and the fourth request message carries the LAN ID The fourth request message is used to request to obtain the service area information corresponding to the LAN ID; the processing unit 1501 receives the fourth response message sent by the LSMF network element through the receiving unit, and the fourth response message carries the service area information corresponding to the LAN ID; the processing unit 1501 Obtain the LAN ID carried in the second PDU session management request, and obtain service area information corresponding to the LAN ID according to the fourth response message.
  • the sending unit 1502 when the sending unit 1502 sends the terminal's LAN information to the terminal, it is specifically configured to:
  • the sending unit 1502 sends a second PDU session management response to the terminal, and the second PDU session management response carries the LAN information of the terminal.
  • the processing unit 1501 When the processing unit 1501 obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, the processing unit 1501 is specifically configured to receive the second contract sent by the UDM network element or the LSMF network element through the receiving unit.
  • Data update notification, the second contract data update notification includes LAN ID, service area information corresponding to the LAN ID, and terminal ID; the processing unit 1501 acquires the terminal registration area information according to the terminal ID carried in the second contract data update notification; processing The unit 1501 obtains the LAN ID and the service area information corresponding to the LAN ID carried in the second subscription data update notification.
  • the sending unit 1502 is specifically configured to send the terminal's LAN information to the terminal: the sending unit 1502 sends a second configuration update message to the terminal, and the second configuration update message includes the LAN information of the terminal.
  • the processing unit 1501 is specifically configured to: when acquiring the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, the processing unit 1501 receives the second registration request message sent by the terminal through the receiving unit, and the second registration The request message carries the ID of the terminal; the processing unit 1501 sends a second contract data request message to the UDM network element or LSMF network element through the sending unit 1502, and the second contract data request message carries the ID of the terminal; the processing unit 1501 receives through the receiving unit The second contract data response message sent by the UDM network element or the LSMF network element, the second contract data response message carries the LAN ID and the service area information corresponding to the LAN ID; the processing unit 1501 generates the registration area information of the terminal; the processing unit 1501 obtains the first The LAN ID and service area information corresponding to the LAN ID carried in the second contract data response message.
  • the sending unit 1502 when the sending unit 1502 sends the terminal's LAN information to the terminal, the sending unit 1502 is specifically configured to send the second registration response message to the terminal, where the second registration response message includes the terminal's LAN information.
  • the processing unit 1501 is further configured to: before sending the second contract data request message to the LSMF network element through the sending unit 1502, obtain the LAN instruction information of the terminal or the LAN contract information of the terminal;
  • the indication information is carried in the second registration request message, and the LAN contract information is obtained by the AMF network element from the UDM network element; the LAN indication information or the LAN contract information is used to indicate that the terminal needs to use the LAN service indicated by the LAN ID.
  • the processing unit 1501 When the processing unit 1501 obtains the registration area information of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, the processing unit 1501 is specifically configured to: the processing unit 1501 receives the third PDU session management request sent by the terminal through the receiving unit, and the third The PDU session management request carries the LAN ID; the processing unit 1501 sends a seventh contract data request message to the UDM network element or LSMF network element through the sending unit 1502, and the seventh contract data request message carries the terminal ID and the LAN ID; the processing unit 1501 Receive the seventh subscription data response message sent by the UDM network element or LSMF network element through the receiving unit, and the seventh contract data response message carries the service area information corresponding to the LAN ID; the processing unit 1501 obtains the registration area of the terminal from the context of the terminal Information; the processing unit 1501 acquires the LAN ID carried in the third PDU session management request, and acquires service area information corresponding to the LAN ID carried
  • the sending unit 1502 when sending the terminal's LAN information to the terminal, the sending unit 1502 is specifically configured to send the sending unit 1502 to the terminal with a third PDU session management response, and the third PDU session management response includes the terminal's LAN information.
  • the device 1500 further includes: a receiving unit, configured to receive the first LAN communication request sent by the terminal after the sending unit 1502 sends the LAN information of the terminal to the terminal, and the first LAN communication request carries a LAN ID
  • the processing unit 1501 is further configured to determine the LAN information of the terminal according to the LAN ID and the ID of the terminal; the sending unit 1502 is further configured to: when the location of the terminal is not within the LAN communication area, report the SMF network element so that the SMF network element The first LAN communication request is processed.
  • an embodiment of the present application further provides a management device for local area network communication.
  • This device may perform the same operations as those performed by the LSMF network element in the method shown in FIG. 4.
  • the apparatus 1600 includes: a receiving unit 1601 and a processing unit 1602.
  • the receiving unit 1601 is configured to receive a group management request sent by a communication device.
  • the processing unit 1602 is configured to obtain the ID of the terminal, the LAN ID of the terminal, and service area information corresponding to the LAN ID according to the group management request.
  • the processing unit 1602 is further configured to: after obtaining the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID according to the group management request, select a UDM network element according to the service area information corresponding to the LAN ID;
  • the device 1600 further includes: a sending unit, configured to send a second configuration parameter to the UDM network element, and the second configuration parameter includes a LAN ID and an ID of the terminal.
  • the processing unit 1602 is further configured to: after the processing unit 1602 acquires the ID of the terminal, the LAN ID of the terminal, and service area information corresponding to the LAN ID, and select an AMF network element according to the service area information corresponding to the LAN ID; the device 1600 also It includes: a sending unit, configured to send a first configuration parameter to the AMF network element, and the first configuration parameter includes LAN ID and service area information corresponding to the LAN ID.
  • the receiving unit 1601 is further configured to: after the sending unit sends the second configuration parameter to the UDM network element, receive a third request message sent by the AMF network element, the third request message carries a LAN ID, and the third request message is used for The request is to obtain the service area information corresponding to the LAN ID; the sending unit is further configured to send a third response message to the AMF network element, and the third response message carries the service area information corresponding to the LAN ID.
  • the second configuration parameter also includes service area information corresponding to the LAN ID.
  • the receiving unit 1601 is further configured to: after the processing unit 1602 obtains the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID according to the group management request, and then receives the third contract sent by the AMF network element
  • the data request message, the third contract data request message carries the ID of the terminal, and the third contract data request message is used to request to obtain the LAN ID of the terminal and the service area information corresponding to the LAN ID;
  • the device 1600 further includes: a sending unit for sending The AMF network element sends a third contract data response message, and the third contract data response message carries LAN ID and service area information corresponding to the LAN ID.
  • the third contract data request message may be the second contract data request message or the seventh contract data request message in the foregoing embodiment; the third contract data response message may be the second contract data response message or the first Seven signing data response messages.
  • the device 1600 further includes: a sending unit, configured to send the second to the AMF network element after the processing unit 1602 obtains the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID according to the group management request.
  • the contract data update notification, the second contract data update notification includes the LAN ID, the service area information corresponding to the LAN ID, and the terminal ID.
  • the processing unit 1602 obtains the ID of the terminal, the LAN ID of the terminal, and the service area information corresponding to the LAN ID according to the group management request, and two of them are listed below.
  • the group management request is a group creation request.
  • the group creation request is used to request the creation of a group for LAN communication.
  • the group creation request carries the service area information corresponding to the group and the ID of the terminal.
  • the processing unit 1602 When the processing unit 1602 acquires the terminal ID, the terminal's LAN ID, and the service area information corresponding to the LAN ID according to the group management request, the processing unit 1602 specifically includes: the processing unit 1602 assigns a LAN ID to the group; the processing unit 1602 determines the service corresponding to the LAN ID The area is the service area corresponding to the group.
  • the group management request is a first group update request.
  • the first group update request is used to request to update the group corresponding to the LAN ID.
  • the first group update request carries the LAN ID and the service area information corresponding to the LAN ID.
  • the processing unit 1602 When acquiring the ID of the terminal, the LAN ID of the terminal, and the service area information corresponding to the LAN ID according to the group management request, the processing unit 1602 specifically determines the ID of the terminal according to the LAN ID. or,
  • the group management request is a second group update request.
  • the second group update request is used to request to update the group corresponding to the LAN ID.
  • the second group update request carries the ID of the terminal and the LAN ID of the terminal.
  • the processing unit 1602 is in When obtaining the ID of the terminal, the LAN ID of the terminal, and the service area information corresponding to the LAN ID according to the group management request, the processing unit 1602 specifically determines the service area information corresponding to the LAN ID according to the LAN ID.
  • the communication device is any of the following: an AF network element; an OAM entity; and a designated terminal.
  • an embodiment of the present application further provides a management device for local area network communication.
  • This device may perform the same operations as those performed by the UDM network element in the method shown in FIG. 4.
  • the apparatus 1700 includes a receiving unit 1701.
  • the receiving unit is configured to receive a second configuration parameter sent by the LSMF network element, and the second configuration parameter includes a LAN ID of the terminal and an ID of the terminal.
  • the second configuration parameter may further include service area information corresponding to the LAN ID.
  • the device 1700 further includes: a sending unit, configured to send a third subscription data update notification to the AMF network element after the receiving unit receives the second configuration parameter sent by the LSMF network element, and the third subscription data update notification carries the second Configuration parameters.
  • a sending unit configured to send a third subscription data update notification to the AMF network element after the receiving unit receives the second configuration parameter sent by the LSMF network element, and the third subscription data update notification carries the second Configuration parameters.
  • the third contract data update notification may be any one of the fourth contract data update notification, the first contract data update notification, or the second contract data update notification in the foregoing embodiment.
  • the receiving unit is further configured to: after receiving the second configuration parameter sent by the LSMF network element, receive a seventh subscription data request message sent by the AMF network element, and the third subscription data request message carries the ID of the terminal; device 1700 It also includes: a sending unit, configured to send a third subscription data response message to the AMF network element, and the third subscription data response message carries a LAN ID.
  • the third contract data request message may be any one of the aforementioned fourth contract data request message, the fifth contract data request message, or the first contract data request message; the third contract data response message may be the aforementioned fourth contract data Any one of a response message, a fifth subscription data response message, or a first subscription data response message.
  • the third contract data response message also carries service area information corresponding to the LAN ID.
  • the third subscription data request message may be the aforementioned first subscription data request message.
  • the receiving unit 1701 is further configured to: after receiving the second configuration parameter sent by the LSMF network element, receive an eighth subscription data request message sent by the AMF network element, and the eighth subscription data request message carries the terminal ID and the LAN ID; the device 1700 further includes: a sending unit, configured to send an eighth subscription data response message to the AMF network element.
  • the eighth contract data request message can be regarded as any one of the foregoing fifth contract data request message, the sixth contract data request message, and the seventh contract data request message; the eighth contract data response message can be regarded as the foregoing fifth Any of a subscription data response message, a sixth subscription data response message, and a seventh subscription data response message.
  • the eighth contract data response message can also carry service area information corresponding to the LAN ID.
  • the eighth contracted data request message may be regarded as the aforementioned seventh contracted data request message; the eighth contracted data response message may be regarded as the aforementioned seventh contracted data response message.
  • an embodiment of the present application further provides a management device for local area network communication.
  • This device may perform the same operations as those performed by the terminal in the method shown in FIG. 4.
  • the apparatus 1800 includes a receiving unit 1801 and a processing unit 1802.
  • the receiving unit 1801 is configured to receive LAN information sent by an AMF network element, and the LAN information of the terminal includes the LAN ID of the terminal and the LAN communication area information of the terminal;
  • the processing unit 1802 is configured to manage LAN communication of the terminal according to the LAN information.
  • the processing unit 1802 when managing the local area network communication of the terminal according to the LAN information, is specifically configured to: when the location of the terminal is not within the LAN communication area, prohibit the terminal from initiating a second LAN communication request.
  • the receiving unit 1801 when receiving the LAN information sent by the AMF network element, is specifically configured to receive a first message sent by the AMF network element, where the first message carries the LAN information of the terminal, and the first message is a configuration update message, Any of a registration response message and a PDU session management response message.
  • an embodiment of the present application further provides a management device for local area network communication.
  • This device may perform the same operations as those performed by the LSMF network element in the method shown in FIG. 13.
  • the apparatus 1900 includes a processing unit 1901 and a sending unit 1902.
  • the processing unit 1901 is configured to obtain registration area information of the terminal, an ID of the terminal, a local area network identifier LAN ID of the terminal, and service area information corresponding to the LAN ID.
  • the processing unit 1901 is further configured to determine the LAN communication area information of the terminal according to the registered area information and the service area information corresponding to the LAN ID.
  • the sending unit 1902 is configured to send the LAN information of the terminal to the AMF network element.
  • the LAN information of the terminal includes a LAN ID and LAN communication area information of the terminal.
  • the processing unit 1901 may obtain the terminal ID, the local area network identification LAN ID, and the service area information corresponding to the LAN ID of the terminal in the following two ways.
  • the processing unit 1901 When the processing unit 1901 acquires the ID of the terminal, the local area network identifier LAN ID of the terminal, and the service area information corresponding to the LAN ID, the processing unit 1901 is specifically used for: the processing unit 1901 receives the group creation request sent by the communication device through the receiving unit, and the group creation request is used for In requesting to create a group for LAN communication, the group creation request carries the service area information corresponding to the group and the terminal ID; the processing unit 1901 assigns a LAN ID to the group; the processing unit 1901 determines that the service area corresponding to the LAN ID is a group Service area corresponding to the group.
  • the processing unit 1901 When the processing unit 1901 acquires the terminal ID, the local area network identifier LAN ID, and the service area information corresponding to the LAN ID, the processing unit 1901 is specifically configured to: the processing unit 1901 receives the first group update request sent by the communication device through the receiving unit, and the first group The group update request is used to request to update the group corresponding to the LAN ID.
  • the first group update request carries the LAN ID and the service area information corresponding to the LAN ID; the processing unit 1901 determines the ID of the terminal according to the LAN ID; or, the processing unit 1901 passes
  • the receiving unit receives a second group update request sent by the communication device.
  • the second group update request is used to request to update the group corresponding to the LAN ID.
  • the second group update request carries the ID of the terminal and the LAN ID of the terminal; the processing unit 1901 determines the service area information corresponding to the LAN ID according to the LAN ID.
  • the device 1900 further includes a receiving unit for receiving a LAN information acquisition request sent by an AMF network element before the processing unit 1901 determines the LAN communication area information of the terminal according to the registered area information and the service area information corresponding to the LAN ID.
  • the information acquisition request is used to request the LAN information of the terminal, and the LAN information acquisition request carries the LAN ID, the terminal ID, and the registered area information of the terminal.
  • the sending unit 1902 sends the LAN information of the terminal to the AMF network element, it is specifically used to:
  • the sending unit 1902 sends a LAN information acquisition response to the AMF network element, and the LAN information acquisition response carries the LAN information of the terminal.
  • the communication device is any of the following: an AF network element; an OAM entity; a designated terminal.
  • an embodiment of the present application further provides a management device for local area network communication.
  • This device may perform the same operations as those performed by the AMF network element in the method shown in FIG. 13.
  • the apparatus 2000 includes a receiving unit 2001 and a sending unit 2002.
  • the receiving unit 2001 is configured to receive the LAN information of the terminal sent by the LSMF network element, and the LAN information of the terminal includes the LAN ID of the terminal and the LAN communication area information of the terminal;
  • the sending unit 2002 is configured to send the LAN information of the terminal to the terminal.
  • the sending unit 2002 is further configured to: before the receiving unit 2001 receives the LAN information of the terminal sent by the LSMF network element, send a LAN information acquisition request to the LSMF network element, and the LAN information acquisition request is used to request the LAN information of the terminal,
  • the LAN information acquisition request carries the LAN ID, the ID of the terminal, and the registration area information of the terminal.
  • the receiving unit 2001 is specifically used for: the receiving unit 2001 receives the LAN information sent by the LSMF network element. Acquiring a response.
  • the LAN information acquiring response carries the LAN information of the terminal.
  • an operation of requesting the device 200 to obtain the LAN information of the terminal may be triggered based on different scenarios. Three scenarios are listed below.
  • the receiving unit 2001 is further configured to: before the sending unit 2002 sends a LAN information acquisition request to the LSMF network element, receive a contract data update notification sent by the LSMF network element, and the contract data update notification includes the LAN ID and the terminal ID; the device 2000 further includes: The processing unit is used to determine that the terminal is registered in the group corresponding to the LAN ID.
  • the sending unit 2002 sends the terminal's LAN information to the terminal, the sending unit 2002 is specifically configured to send the configuration update message to the terminal in the configuration update message. Carry the LAN information of the terminal.
  • the receiving unit 2001 is further configured to: before the sending unit 2002 sends a LAN information acquisition request to the LSMF network element, receive a registration request message sent by the terminal, and the registration request message carries the LAN instruction information of the terminal or the LAN signing information of the terminal, and the registration request message It also carries the terminal ’s ID, LAN indication information, or LAN contract information to indicate that the terminal needs to use the LAN service indicated by the LAN ID; the sending unit 2002 is specifically used when sending the terminal's LAN information to the terminal: sending unit 2002 Send a registration response message to the terminal.
  • the registration response message carries the LAN information of the terminal.
  • the receiving unit 2001 is further configured to: before the sending unit 2002 sends a LAN information acquisition request to the LSMF network element, receive a PDU session management request sent by the terminal, and the PDU session management request carries a LAN ID; the device 2000 further includes: a processing unit, configured to: The terminal ID is determined according to the PDU session management request.
  • the sending unit 2002 sends the terminal's LAN information to the terminal, the sending unit 2002 is specifically used for: the sending unit 2002 sends a PDU session management response message to the terminal, and the PDU session management response message carries the terminal's LAN information.
  • the receiving unit 2001 is further configured to: after the sending unit 2002 sends the terminal's LAN information to the terminal, receive the first LAN communication request sent by the terminal, and the first LAN communication request carries a LAN ID; the device 2000 further includes: a processing unit, It is used to determine the LAN information of the terminal according to the LAN ID and the ID of the terminal.
  • the sending unit 2002 is further configured to: when the location of the terminal is not in the LAN communication area, report the SMF network element, so that the SMF network element requests the first LAN communication. For processing.
  • an embodiment of the present application further provides a management device for local area network communication.
  • This device may perform the same operations as those performed by the terminal in the method shown in FIG. 13.
  • the apparatus 2100 includes a receiving unit 2101 and a processing unit 2102.
  • the receiving unit 2101 is configured to receive LAN information sent by an AMF network element.
  • the LAN information of the terminal includes the LAN ID of the terminal and the LAN communication area information of the terminal.
  • the processing unit 2102 is configured to manage the LAN communication of the terminal according to the LAN information.
  • the processing unit 2102 when managing the local area network communication of the terminal according to the LAN information, is specifically configured to: when the location of the terminal is not within the LAN communication area, prohibit the terminal from initiating a second LAN communication request.
  • the receiving unit 2101 when receiving the LAN information sent by the AMF network element, is specifically configured to receive a first message sent by the AMF network element, where the first message carries the LAN information of the terminal, and the first message is a configuration update message, Any of a registration response message and a PDU session management response message.
  • the AMF network element, LSMF network element, or UDM network element may be presented in the form of dividing each functional module in an integrated manner.
  • the "module” herein may refer to a specific ASIC, a circuit, a processor and a memory executing one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.
  • the division of the units in the embodiments of the present application is schematic, and is only a logical function division. There may be another division manner in actual implementation.
  • the functional units in the embodiments of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or in the form of software functional unit.
  • the integrated unit When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially a part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium.
  • a computer device which may be a personal computer, a server, or a network device
  • the aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .
  • the management device 2200 for local area network communication shown in FIG. 22 includes at least one processor 2201 and a memory 2202, and optionally, may further include a communication interface 2203.
  • the memory 2202 may be a volatile memory, such as a random access memory; the memory may also be a non-volatile memory, such as a read-only memory, a flash memory, a hard disk drive (HDD), or a solid-state drive (solid-state drive, SSD), or memory 2202 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to this.
  • the memory 2202 may be a combination of the above memories.
  • a specific connection medium between the processor 2201 and the memory 2202 is not limited in the embodiment of the present application.
  • the memory 2202 and the processor 2201 are connected by a bus 2204 in the figure, and the bus 2204 is indicated by a thick line in the figure.
  • the connection modes of other components are only for illustrative purposes and are not cited. Limited.
  • the bus 2204 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only a thick line is used in FIG. 22, but it does not mean that there is only one bus or one type of bus.
  • the processor 2201 may have a data transmitting and receiving function, and can communicate with other devices.
  • an independent data transmitting and receiving module such as a communication interface 2203, may be provided for transmitting and receiving data.
  • the processor 2201 is performing communication with other devices. During communication, data can be transmitted through the communication interface 2203.
  • the processor 2201 in FIG. 22 may call a computer stored in the memory 2202 to execute instructions, so that the AMF network element,
  • the LSMF network element or UDM network element network element may execute the method performed by the AMF network element, the LSMF network element, or the UDM network element in any one of the foregoing method embodiments, respectively.
  • the function / implementation process of the sending unit, receiving unit, and processing unit in the AMF network element, LSMF network element, or UDM network element can be implemented by the processor 2201 in FIG. 22 calling the computer execution instructions stored in the memory 2202 .
  • the function / implementation process of the processing unit in the AMF network element, LSMF network element, or UDM network element may be implemented by the processor 2201 in FIG. 22 calling a computer execution instruction stored in the memory 2202, and the AMF network element, LSMF network element
  • the function / implementation process of the sending unit and the receiving unit in the UDM network element may be implemented through the communication interface 2203 in FIG. 22.
  • the management device 2300 for local area network communication shown in FIG. 23 includes at least one processor 2301 and a memory 2302, and optionally, may further include a transceiver 2303.
  • the implementation of the memory 2302 can be referred to the foregoing memory 2202, the implementation of the processor 2301 can be referred to the foregoing processor 2201, and the implementation of the transceiver 2303 can be referred to the aforementioned communication interface 2203, which will not be repeated here.
  • the processor 2301 in FIG. 23 can call a computer stored in the memory 2302 to execute instructions, so that the terminal can execute the method performed by the terminal in any of the foregoing method embodiments. .
  • the functions / implementation processes of the sending unit, the receiving unit, and the processing unit in the device 1800 and the device 2230 may be implemented by the processor 2301 in FIG. 23 calling a computer execution instruction stored in the memory 2302.
  • the function / implementation process of the processing unit in the device 1800 and the device 2230 may be implemented by the processor 2301 in FIG. 23 calling a computer execution instruction stored in the memory 2302.
  • the sending unit and the receiving unit in the device 1800 and the device 2230 The function / implementation process can be implemented by the transceiver 2303 in FIG. 23.
  • the communication system 2400 includes an AMF network element and an LSMF network element, and optionally, a UDM network element.
  • the AMF network element, LSMF network element, and UDM network element are respectively used to implement the functions of the related network elements in the foregoing FIG. 4 to FIG. 14. For details, refer to related descriptions in the foregoing method embodiments, and details are not described herein again.
  • this application may be provided as a method, a system, or a computer program product. Therefore, this application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a particular manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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Abstract

本申请实施例提供一种局域网通信的管理方法及装置，用以对LAN群组中终端的LAN通信进行管理。方法包括：LSMF网元接收通信设备发送的群组管理请求；LSMF网元根据所述群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息；AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息；AMF网元根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息；AMF网元向终端发送终端的LAN信息，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。终端根据LAN信息对终端的LAN通信进行管理。

Description

一种局域网通信的管理方法及装置
本申请要求于2018年8月13日提交中国国家知识产权局、申请号为201810918122.7、发明名称为“一种局域网通信的管理方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种局域网通信的管理方法及装置。
背景技术
5G局域网(local area network，LAN)服务是5G网络提供的一种服务，能够为属于同一LAN群组的终端提供互联网协议(internet protocol，IP)类型或者非IP类型的私有通信。5G LAN服务主要应用于家庭通信、企业办公、工厂制造、车联网、电网改造等场景中。其中，终端可依据业务需求或者专有属性加入一个LAN群组，属于该LAN群组的终端可以进行LAN通信。
比如，某工厂中的设备组成一个LAN群组，属于这个LAN群组的设备之间相互发送以太数据包。再比如，某企业雇员的办公设备(例如手机、计算机、笔记本电脑等)组成一个LAN群组，属于这个LAN群组的办公设备之间可以相互发送IP数据包。
但是，5G LAN服务是有区域限制的，LAN群组中的终端之间仅能在某些特定区域内进行LAN通信，如何对LAN群组中终端的LAN通信进行管理，是一个亟需解决的问题。
发明内容
本申请实施例提供一种局域网通信的管理方法及装置，用以对LAN群组中终端的LAN通信进行管理。
第一方面，本申请实施例提一种局域网通信的管理方法，该方法包括如下步骤：AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息；AMF网元根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息；AMF网元向终端发送终端的LAN信息，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
通过上述方法，AMF网元可根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。然后，AMF网元可将确定的终端的LAN信息发送给终端，使得终端可根据终端的LAN信息对终端的LAN通信进行管理。
在一种可能的设计中，在AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息之前，还包括：AMF网元接收LSMF网元发送的第一配置参数，第一配置参数包括LAN ID以及LAN ID对应的服务区域信息。
通过上述方法，LSMF网元可直接将第一配置参数发送给AMF网元，供AMF网元确定终端的LAN信息时使用。
此外，LSMF网元在AMF网元确定终端的LAN信息之前，可向UDM网元发送第二配置参数，第二配置参数包括LAN ID及终端的ID，UDM网元在AMF网元需确定终端的LAN信息时，可将 第二配置参数通过不同的消息配置给AMF网元。基于LSMF网元将第一配置参数发送给AMF网元、将第二配置参数发送给UDM网元这一实现方式，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息的方式可以有三种。
方式一
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：AMF网元接收UDM网元发送的第四签约数据更新通知，第四签约数据更新通知包括LAN ID以及终端的ID；AMF根据终端的ID获取终端的注册区域信息；AMF网元获取第四签约数据更新通知中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第三配置更新消息，第三配置更新消息包括终端的LAN信息。
通过上述方法，AMF网元可在终端已注册的情况下，基于UDM网元发送的第四签约数据更新通知以及第一配置参数获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
方式二
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：AMF网元接收终端发送的第三注册请求消息，第三注册请求消息中携带终端的ID；AMF网元向UDM网元发送第四签约数据请求消息，第四签约数据请求消息中携带终端的ID；AMF网元接收UDM网元发送的第四签约数据响应消息，第四签约数据响应消息中携带LAN ID；AMF生成终端的注册区域信息；AMF网元获取第四签约数据响应消息中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第三注册响应消息，第三注册响应消息携带终端的LAN信息。
通过上述方法，AMF网元可在未注册终端发送第三注册请求消息的情况下，触发确定终端的LAN信息的操作，AMF网元可根据第四签约数据响应消息和第一配置参数获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
方式三
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：AMF网元接收终端发送的第一PDU会话管理请求，第一PDU会话管理请求中携带LAN ID；AMF网元从终端的上下文中，获取终端的注册区域信息；AMF网元获取第一PDU会话管理请求中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第一PDU会话管理响应，第一PDU会话管理响应携带终端的LAN信息。
通过上述方法，AMF网元可在接收到第一PDU会话管理请求的情况下，触发确定终端的LAN信息的操作，AMF网元可根据第一PDU会话管理响应和第一配置参数获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
此外，LSMF网元在AMF网元确定终端的LAN信息之前，可向UDM网元发送第二配置参数，第二配置参数包括LAN ID及终端的ID，UDM网元在AMF网元需确定终端的LAN信息时，可将第二配置参数通过不同的消息配置给AMF网元。具体方式可以有三种。
方式一
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务 区域信息，具体为：AMF网元接收UDM网元发送的第一签约数据更新通知，第一签约数据更新通知包括LAN ID以及终端的ID；AMF根据终端的ID获取终端的注册区域信息；AMF网元向LSMF网元发送第一请求消息，第一请求消息中携带LAN ID，第一请求消息用于请求获取LAN ID对应的服务区域信息；AMF网元接收LSMF网元发送的第一响应消息，第一响应消息中携带LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第一配置更新消息，第一配置更新消息包括终端的LAN信息。
通过上述方法，AMF网元可在终端已注册的情况下，基于UDM网元发送的第一签约数据更新通知以及第二配置参数获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
方式二
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：AMF网元接收终端发送的第一注册请求消息，第一注册请求消息中携带终端的ID；AMF网元向UDM网元发送第一签约数据请求消息，第一签约数据请求消息中携带终端的ID；AMF网元接收UDM网元发送的第一签约数据响应消息，第一签约数据响应消息中携带LAN ID；AMF生成终端的注册区域信息；AMF网元向LSMF网元发送第二请求消息，第二请求消息中携带LAN ID，第二请求消息用于请求获取LAN ID对应的服务区域信息；AMF网元接收LSMF网元发送的第二响应消息，第二响应消息中携带LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第一注册响应消息，第一注册响应消息携带终端的LAN信息。
通过上述方法，AMF网元可在未注册终端发送第一注册请求消息的情况下，触发确定终端的LAN信息的操作，AMF网元可根据第一签约数据响应消息和第二配置参数获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
方式三
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：AMF网元接收终端发送的第二PDU会话管理请求，第二PDU会话管理请求中携带LAN ID；AMF网元从终端的上下文中，获取终端的注册区域信息；AMF网元向LSMF网元发送第四请求消息，第四请求消息中携带LAN ID，第四请求消息用于请求获取LAN ID对应的服务区域信息；AMF网元接收LSMF网元发送的第四响应消息，第四响应消息中携带LAN ID对应的服务区域信息；AMF网元获取第二PDU会话管理请求中携带的LAN ID，并根据第四响应消息获取LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第二PDU会话管理响应，第二PDU会话管理响应携带终端的LAN信息。
通过上述方法，AMF网元可在接收到第二PDU会话管理请求的情况下，触发确定终端的LAN信息的操作，AMF网元可根据第二PDU会话管理响应和第二配置参数获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
此外，LSMF网元在AMF网元确定终端的LAN信息之前，可向UDM网元发送第二配置参数，第二配置参数包括LAN ID及终端的ID以及LAN ID对应的服务区域信息，或者LSMF网元可自身保存第二配置参数，第二配置参数包括LAN ID及终端的ID以及LAN ID对应的服务区域信息，在AMF网元需确定终端的LAN信息时，可将这些信息由UDM网元或LSMF网元发送给AMF网元。
方式一
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：AMF网元接收UDM网元或者LSMF网元发送的第二签约数据更新通知，第二签约数据更新通知包括LAN ID、LAN ID对应的服务区域信息以及终端的ID；AMF根据第二签约数据更新通知中携带的终端的ID获取终端的注册区域信息；AMF网元获取第二签约数据更新通知携带的LAN ID以及LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第二配置更新消息，第二配置更新消息包括终端的LAN信息。
通过上述方法，AMF网元可在终端已注册的情况下，基于UDM网元或LSMF网元发送的第二签约数据更新通知获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
方式二
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：AMF网元接收终端发送的第二注册请求消息，第二注册请求消息中携带终端的ID；AMF网元向UDM网元或者LSMF网元发送第二签约数据请求消息，第二签约数据请求消息中携带终端的ID；AMF网元接收UDM网元或者LSMF网元发送的第二签约数据响应消息，第二签约数据响应消息中携带LAN ID以及LAN ID对应的服务区域信息；AMF生成终端的注册区域信息；AMF网元获取第二签约数据响应消息中携带的LAN ID以及LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第二注册响应消息，第二注册响应消息包括终端的LAN信息。
通过上述方法，AMF网元可在未注册终端发送第二注册请求消息的情况下，触发确定终端的LAN信息的操作，AMF网元可根据第二签约数据响应消息获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
此外，在AMF网元向LSMF网元发送第二签约数据请求消息之前，还包括：AMF网元获取终端的LAN指示信息或者终端的LAN签约信息；其中，LAN指示信息携带在第二注册请求消息中，LAN签约信息为AMF网元从UDM网元获取；LAN指示信息或者LAN签约信息用于指示终端需要使用所述LAN ID指示的LAN服务。
方式三
AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：AMF网元接收终端发送的第三PDU会话管理请求，第三PDU会话管理请求中携带LAN ID；AMF网元向UDM网元或者LSMF网元发送第七签约数据请求消息，第七签约数据请求消息中携带终端的ID以及LAN ID；AMF网元接收UDM网元或者LSMF网元发送的第七签约数据响应消息，第七签约数据响应消息中携带LAN ID对应的服务区域信息；AMF网元从终端的上下文中，获取终端的注册区域信息；AMF网元获取第三PDU会话管理请求中携带的LAN ID，并获取第七签约数据响应消息中携带的LAN ID对应的服务区域信息；AMF网元向终端发送终端的LAN信息，具体为：AMF网元向终端发送第三PDU会话管理响应，第三PDU会话管理响应包括终端的LAN信息。
通过上述方法，AMF网元可在接收到第三PDU会话管理请求的情况下，触发确定终端的LAN信息的操作，AMF网元可根据第三PDU会话管理响应获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
在一种可能的设计中，在AMF网元向终端发送终端的LAN信息之后，还包括：AMF网元 接收终端发送的第一LAN通信请求，第一LAN通信请求中携带LAN ID；AMF根据LAN ID以及终端的ID确定终端的LAN信息；AMF网元在终端的位置不在LAN通信区域内的情况下，上报SMF网元，使得SMF网元对第一LAN通信请求进行处理。
通过上述方法，可使得AMF网元根据终端的LAN信息对终端的局域网通信进行管理。
第二方面，本申请实施例提供一种局域网通信的管理方法，该方法包括如下步骤：LSMF网元接收通信设备发送的群组管理请求；LSMF网元根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
在一种可能的设计中，在LSMF网元根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，还包括：LSMF网元根据LAN ID对应的服务区域信息选择UDM网元；LSMF网元向UDM网元发送第二配置参数，第二配置参数包括LAN ID以及终端的ID。
在一种可能的设计中，在LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，还包括：LSMF网元根据LAN ID对应的服务区域信息选择AMF网元；LSMF网元向AMF网元发送第一配置参数，第一配置参数包括LAN ID以及LAN ID对应的服务区域信息。
在一种可能的设计中，在LSMF网元向UDM网元发送第二配置参数之后，还包括：LSMF网元接收AMF网元发送的第三请求消息，第三请求消息中携带LAN ID，第三请求消息用于请求获取LAN ID对应的服务区域信息；LSMF网元向AMF网元发送第三响应消息，第三响应消息中携带LAN ID对应的服务区域信息。
其中，第三请求消息可以是前述第一请求消息、第二请求消息和第四请求消息中的任一种；第三响应消息可以是前述第一响应消息、第二响应消息和第四响应消息中的任一种。
在一种可能的设计中，第二配置参数还包括LAN ID对应的服务区域信息。
在一种可能的设计中，在LSMF网元根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，还包括：LSMF网元接收AMF网元发送的第三签约数据请求消息，第三签约数据请求消息中携带终端的ID，第三签约数据请求消息用于请求获取终端的LAN ID以及LAN ID对应的服务区域信息；LSMF网元向AMF网元发送第三签约数据响应消息，第三签约数据响应消息中携带LAN ID以及LAN ID对应的服务区域信息。
其中，第三签约数据请求消息可以是前述第二签约数据请求消息或第七签约数据请求消息；第三签约数据响应消息可以是前述第二签约数据响应消息或第七签约数据响应消息。
在一种可能的设计中，在LSMF网元根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，还包括：LSMF网元向AMF网元发送第二签约数据更新通知，第二签约数据更新通知包括LAN ID、LAN ID对应的服务区域信息以及终端的ID。
在一种可能的设计中，群组管理请求为群组创建请求，群组创建请求用于请求创建进行LAN通信的群组，群组创建请求中携带群组对应的服务区域信息以及终端的ID；LSMF网元根据群组管理请求获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息，具体为：LSMF网元为群组分配LAN ID；LSMF网元确定LAN ID对应的服务区域为群组对应的服务区域。
通过上述方法，LSMF网元可通过群组创建请求确定终端的LAN ID、LAN ID以及LAN ID对应的服务区域信息。
在一种可能的设计中，群组管理请求为第一群组更新请求，第一群组更新请求用于请求更新LAN ID对应的群组，第一群组更新请求中携带LAN ID以及LAN ID对应的服务区域信息； LSMF网元根据群组管理请求获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息，具体为：LSMF网元根据LAN ID确定终端的ID；或者，群组管理请求为第二群组更新请求，第二群组更新请求用于请求更新LAN ID对应的群组，第二群组更新请求中携带终端的ID、终端的LAN ID；LSMF网元根据群组管理请求获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息，具体为：LSMF网元根据LAN ID确定LAN ID对应的服务区域信息。
通过上述方法，LSMF网元可通过群组更新请求确定终端的LAN ID、LAN ID以及LAN ID对应的服务区域信息。
在一种可能的设计中，通信设备为以下任一种：应用功能AF网元；操作维护管理OAM实体；指定终端。
第三方面，本申请实施例还提供一种局域网通信的管理方法，该方法包括如下步骤：UDM网元接收LSMF网元发送的第二配置参数，第二配置参数包括终端的LAN ID以及终端的ID。
在一种可能的设计中，第二配置参数还包括LAN ID对应的服务区域信息。
在一种可能的设计中，在UDM网元接收LSMF网元发送的第二配置参数之后，还包括：
UDM网元向AMF网元发送第三签约数据更新通知，第三签约数据更新通知携带第二配置参数。
其中，该第三签约数据更新通知可以是前述第四签约数据更新通知、第一签约数据更新通知或第二签约数据更新通知中的任一种。
在一种可能的设计中，在UDM网元接收LSMF网元发送的第二配置参数之后，还包括：UDM网元接收AMF网元发送的第三签约数据请求消息，第三签约数据请求消息中携带终端的ID；UDM网元向AMF网元发送第三签约数据响应消息，第三签约数据响应消息中携带LAN ID。
其中，第三签约数据请求消息可以是前述第四签约数据请求消息、第五签约数据请求消息或第一签约数据请求消息中的任一种；第三签约数据响应消息可以是前述第四签约数据响应消息、第五签约数据响应消息或第一签约数据响应消息中的任一种。
在一种可能的设计中，第三签约数据响应消息还携带LAN ID对应的服务区域信息。
其中，第三签约数据请求消息可以是前述第一签约数据请求消息。
在一种可能的设计中，在UDM网元接收LSMF网元发送的第二配置参数之后，还包括：UDM网元接收AMF网元发送的第八签约数据请求消息，第八签约数据请求消息中携带终端的ID以及LAN ID；UDM网元向AMF网元发送第八签约数据响应消息。
在一种可能的设计中，第八签约数据响应消息携带LAN ID对应的服务区域信息。
其中，第八签约数据请求消息可视为前述第七签约数据请求消息；第八签约数据响应消息可视为前述第七签约数据响应消息。
第四方面，本申请实施例还提供一种局域网通信的管理方法，该方法包括如下步骤：终端接收AMF网元发送的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息；终端根据LAN信息对终端的LAN通信进行管理。
在一种可能的设计中，终端根据LAN信息对终端的局域网通信进行管理，包括：终端在终端的位置不在LAN通信区域内的情况下，禁止终端发起第二LAN通信请求。
在一种可能的设计中，终端接收AMF网元发送的LAN信息，包括：终端接收AMF网元发送的第一消息，第一消息中携带终端的LAN信息，第一消息为配置更新消息、注册响应消息以及PDU会话管理响应消息中的任一种消息。
通过上述方法，可使得终端根据终端的LAN信息对终端的局域网通信进行管理。
第五方面，本申请实施例还提供一种局域网通信的管理方法，该方法包括：LSMF网元获取终端的注册区域信息、终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息；LSMF网元根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息；LSMF网元向AMF网元发送终端的LAN信息，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
通过上述方法，AMF网元可根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。然后，AMF网元可将确定的终端的LAN信息发送给终端，使得终端可根据终端的LAN信息对终端的LAN通信进行管理。
在一种可能的设计中，LSMF网元获取终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：LSMF网元接收通信设备发送的群组创建请求，群组创建请求用于请求创建进行局域网通信的群组，群组创建请求中携带群组对应的服务区域信息以及终端的ID；LSMF网元为群组分配LAN ID；LSMF网元确定LAN ID对应的服务区域为群组对应的服务区域。
采用上述方法，LSMF网元可通过群组创建请求确定终端的LAN ID、LAN ID以及LAN ID对应的服务区域信息。
在一种可能的设计中，LSMF网元获取终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，具体为：LSMF网元接收通信设备发送的第一群组更新请求，第一群组更新请求用于请求更新LAN ID对应的群组，第一群组更新请求中携带LAN ID以及LAN ID对应的服务区域信息；LSMF网元根据LAN ID确定终端的ID；或者LSMF网元接收通信设备发送的第二群组更新请求，第二群组更新请求用于请求更新LAN ID对应的群组，第二群组更新请求中携带终端的ID、终端的LAN ID；LSMF网元根据LAN ID确定LAN ID对应的服务区域信息。
通过上述方法，LSMF网元可通过群组更新请求确定终端的LAN ID、LAN ID以及LAN ID对应的服务区域信息。
在一种可能的设计中，在LSMF网元根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息之前，还包括：LSMF网元接收AMF网元发送的LAN信息获取请求，LAN信息获取请求用于请求获取终端的LAN信息，LAN信息获取请求中携带LAN ID、终端的ID以及终端的注册区域信息；LSMF网元向AMF网元发送终端的LAN信息，包括：LSMF网元向AMF网元发送LAN信息获取响应，LAN信息获取响应中携带终端的LAN信息。
通过上述方法，LSMF网元可基于终端的请求向终端发送终端的LAN信息。
在一种可能的设计中，通信设备为以下任一种：AF网元；OAM实体；指定终端。
第六方面，本申请实施例提供一种局域网通信的管理方法，该方法包括如下步骤：AMF网元接收LSMF网元发送的终端的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息；AMF网元将终端的LAN信息发送给终端。
通过上述方法，AMF网元可将终端的LAN信息发送给终端，使得终端可根据终端的LAN信息对终端的LAN通信进行管理。
在一种可能的设计中，在AMF网元接收LSMF网元发送的终端的LAN信息之前，还包括：AMF网元向LSMF网元发送LAN信息获取请求，LAN信息获取请求用于请求获取终端的LAN信息，LAN信息获取请求中携带LAN ID、终端的ID以及终端的注册区域信息；AMF网元接收LSMF网元发送的终端的LAN信息，包括：AMF网元接收LSMF网元发送的LAN信息获取响应，LAN 信息获取响应中携带终端的LAN信息。
通过上述方法，AMF网元在需要将终端的LAN信息发送给终端时，向AMF网元请求该终端的LAN信息。
在第六方面提供的方法中，AMF网元可在不同的情况下触发获取终端的LAN信息的操作，进而向LSMF网元请求获取终端的LAN信息。
方式一
在AMF网元向LSMF网元发送LAN信息获取请求之前，还包括：AMF网元接收LSMF网元发送的签约数据更新通知，签约数据更新通知包括LAN ID以及终端的ID；AMF网元确定终端已在LAN ID对应的群组中注册；AMF网元将终端的LAN信息发送给终端，具体为：AMF网元向终端发送配置更新消息，配置更新消息中携带终端的LAN信息。
通过上述方法，AMF网元可在接收到签约数据更新通知的情况下，确定终端已注册，进而向LSMF网元请求获取终端的LAN信息，并通过配置更新消息将终端的LAN信息发送给终端。
方式二
在AMF网元向LSMF网元发送LAN信息获取请求之前，还包括：AMF网元接收终端发送的注册请求消息，注册请求消息中携带终端的LAN指示信息或终端的LAN签约信息，注册请求消息中还携带终端的ID，LAN指示信息或LAN签约信息用于指示终端需要使用所述LAN ID指示的LAN服务；AMF网元将终端的LAN信息发送给终端，具体为：AMF网元向终端发送注册响应消息，注册响应消息中携带终端的LAN信息。
通过上述方法，AMF网元可在接收到终端发送的注册请求消息的情况下，向LSMF网元请求获取终端的LAN信息，并通过注册响应消息将终端的LAN信息发送给终端。
方式三
在AMF网元向LSMF网元发送LAN信息获取请求之前，还包括：AMF网元接收终端发送的PDU会话管理请求，PDU会话管理请求中携带LAN ID；AMF网元根据PDU会话管理请求确定终端的ID；AMF网元将终端的LAN信息发送给终端，具体为：AMF网元向终端发送PDU会话管理响应消息，PDU会话管理响应消息中携带终端的LAN信息。
通过上述方法，AMF网元可在接收到终端发送的PDU会话管理请求的情况下，向LSMF网元请求获取终端的LAN信息，并通过PDU会话管理响应消息将终端的LAN信息发送给终端。
在一种可能的设计中，在AMF网元向终端发送终端的LAN信息之后，还包括：AMF网元接收终端发送的第一LAN通信请求，第一LAN通信请求中携带LAN ID；AMF根据LAN ID以及终端的ID确定终端的LAN信息；AMF网元在终端的位置不在LAN通信区域内的情况下，上报SMF网元，使得SMF网元对第一LAN通信请求进行处理。
通过上述方法，可使得AMF网元根据终端的LAN信息对终端的局域网通信进行管理。
第七方面，本申请实施例提供一种局域网通信的管理方法，该方法包括：终端接收AMF网元发送的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息；终端根据LAN信息对终端的LAN通信进行管理。
通过上述方法，可使得终端根据终端的LAN信息对终端的局域网通信进行管理。
在一种可能的设计中，终端根据LAN信息对终端的LAN通信进行管理，包括：终端在终端的位置不在LAN通信区域内的情况下，禁止终端发起第二LAN通信请求。
在一种可能的设计中，终端接收AMF网元发送的LAN信息，包括：终端接收AMF网元发送的第一消息，第一消息中携带终端的LAN信息，第一消息为配置更新消息、注册响应消息 以及PDU会话管理响应消息中的任一种消息。
第八方面，本申请实施例提供一种局域网通信的管理装置，包括：处理单元，用于获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息；处理单元，还用于根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息；发送单元，用于向终端发送终端的LAN信息，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
此外，第八方面所提供的局域网通信的管理装置可用于执行第一方面对应的方法，第八方面所提供的局域网通信的管理装置中未详尽描述的实现方式可参见前述实施例，此处不再赘述。
第九方面，本申请实施例提供一种局域网通信的管理装置，包括：接收单元，用于接收通信设备发送的群组管理请求；处理单元，用于根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
此外，第九方面所提供的局域网通信的管理装置可用于执行第二方面对应的方法，第九方面所提供的局域网通信的管理装置中未详尽描述的实现方式可参见前述实施例，此处不再赘述。
第十方面，本申请实施例提供一种局域网通信的管理装置，包括：接收单元，用于接收LSMF网元发送的第二配置参数，第二配置参数包括终端的LAN ID以及终端的ID。
此外，第十方面所提供的局域网通信的管理装置可用于执行第三方面对应的方法，第十方面所提供的局域网通信的管理装置中未详尽描述的实现方式可参见前述实施例，此处不再赘述。
第十一方面，本申请实施例还提供一种局域网通信的管理装置，其特征在于，包括：接收单元，用于接收AMF网元发送的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息；处理单元，用于根据LAN信息对终端的LAN通信进行管理。
此外，第十一方面所提供的局域网通信的管理装置可用于执行第四方面对应的方法，第十一方面所提供的局域网通信的管理装置中未详尽描述的实现方式可参见前述实施例，此处不再赘述。
第十二方面，本申请实施例还提供一种局域网通信的管理装置，包括：处理单元，用于获取终端的注册区域信息、终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息；处理单元，还用于根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息；发送单元，用于向AMF网元发送终端的LAN信息，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
此外，第十二方面所提供的局域网通信的管理装置可用于执行第五方面对应的方法，第十二方面所提供的局域网通信的管理装置中未详尽描述的实现方式可参见前述实施例，此处不再赘述。
第十三方面，本申请实施例还提供一种局域网通信的管理装置，包括：接收单元，用于接收LSMF网元发送的终端的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息；发送单元，用于将终端的LAN信息发送给终端。
此外，第十三方面所提供的局域网通信的管理装置可用于执行第六方面对应的方法，第十三方面所提供的局域网通信的管理装置中未详尽描述的实现方式可参见前述实施例，此处不再赘述。
第十四方面，本申请实施例还提供一种局域网通信的管理装置，其特征在于，包括：接收单元，用于接收AMF网元发送的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息；处理单元，用于根据LAN信息对终端的LAN通信进行管理。
此外，第十四方面所提供的局域网通信的管理装置可用于执行第七方面对应的方法，第十四方面所提供的局域网通信的管理装置中未详尽描述的实现方式可参见前述实施例，此处不再赘述。
第十五方面，本申请实施例还提供了一种局域网通信的管理装置，所述装置的结构中包括处理器和存储器，所述处理器被配置为支持所述终端执行上述第一方面至第七方面以及第一方面至第七方面任一种设计中提供的方法中相应的功能。所述存储器与所述处理器耦合，其保存所述装置必要的程序指令和数据。所述装置的结构中还包括通信接口，用于与其他设备进行通信。
第十六方面，本申请实施还提供一种通信系统，该通信系统包括AMF网元和LSMF网元。
在一种可能的实现方式中，LSMF网元用于接收通信设备发送的群组管理请求；根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。该LSMF网元还用于：针对已注册终端，向AMF网元发送签约数据更新通知，其中携带终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
AMF网元用于根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息；并向终端发送终端的LAN信息。其中，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。终端根据LAN信息对终端的LAN通信进行管理。
在另一种可能的实现方式中，LSMF网元用于接收通信设备发送的群组管理请求；根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
AMF网元用于在终端发送注册请求消息的情况下，向LSMF网元发送签约数据请求消息，其中携带该终端的ID。
LSMF网元还用于：向AMF网元发送签约数据响应消息，其中携带终端的LAN ID以及LAN ID对应的服务区域信息。
AMF网元还用于：根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息；并向终端发送终端的LAN信息。其中，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。终端根据LAN信息对终端的LAN通信进行管理。
第十七方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
第十八方面，本申请还提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
第十九方面，本申请还提供一种计算机芯片，所述芯片与存储器相连，所述芯片用于读取并执行所述存储器中存储的软件程序，执行上述各方面所述的方法。
附图说明
图1为本申请实施例提供的一种网络架构的结构示意图；
图2为本申请实施例提供的另一种网络架构的结构示意图；
图3为本申请实施例提供的一种终端的LAN通信区域的示意图；
图4为本申请实施例提供的第一种局域网通信的管理方法的流程示意图；
图5为本申请实施例提供的第二种局域网通信的管理方法的流程示意图；
图6为本申请实施例提供的第三种局域网通信的管理方法的流程示意图；
图7为本申请实施例提供的第四种局域网通信的管理方法的流程示意图；
图8为本申请实施例提供的第五种局域网通信的管理方法的流程示意图；
图9为本申请实施例提供的第六种局域网通信的管理方法的流程示意图；
图10为本申请实施例提供的第七种局域网通信的管理方法的流程示意图；
图11为本申请实施例提供的第八种局域网通信的管理方法的流程示意图；
图12为本申请实施例提供的第九种局域网通信的管理方法的流程示意图；
图13为本申请实施例提供的第十种局域网通信的管理方法的流程示意图；
图14为本申请实施例提供的第十一种局域网通信的管理方法的流程示意图；
图15为本申请实施例提供的第一种局域网通信的管理方法的结构示意图；
图16为本申请实施例提供的第二种局域网通信的管理方法的结构示意图；
图17为本申请实施例提供的第三种局域网通信的管理方法的结构示意图；
图18为本申请实施例提供的第四种局域网通信的管理方法的结构示意图；
图19为本申请实施例提供的第五种局域网通信的管理方法的结构示意图；
图20为本申请实施例提供的第六种局域网通信的管理方法的结构示意图；
图21为本申请实施例提供的第七种局域网通信的管理方法的结构示意图；
图22为本申请实施例提供的第八种局域网通信的管理方法的结构示意图；
图23为本申请实施例提供的第九种局域网通信的管理方法的结构示意图；
图24为本申请实施例提供的一种通信系统的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。
参阅图1所示，为本申请适用的一种可能的网络架构示意图。该网络架构为5G网络架构。该网络架构中的网元包括终端、接入网(access network，AN)、核心网(Core)以及数据网络(data network，DN)。其中，接入网可以为无线接入网(radio access network，RAN)。在该网络架构中，终端、AN和Core是构成该网络架构的主要部分。对于AN和Core中的网元来说，从逻辑上可以分为用户面和控制面两部分，控制面负责移动网络的管理，用户面负责业务数据的传输。例如，在图1所示的网络架构中，NG2参考点位于RAN控制面和Core控制面之间，NG3参考点位于RAN用户面和Core用户面之间，NG6参考点位于Core用户面和DN之间。
在图1所示的网络架构中，终端是一种具有无线收发功能的设备，是移动用户与网络交互的入口，能够提供基本的计算能力，和存储能力，并向用户显示业务窗口、接受用户操作输入。在5G通信系统中，终端会采用新空口技术与AN建立信号连接和数据连接，从而传输控制信号和业务数据到网络。
具体地，终端可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、 无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
在图1所示的网络架构中，AN类似于传统通信网络里面的基站，部署在靠近终端的位置，为特定区域的授权用户提供入网功能，并能够根据用户的级别、业务的需求等确定不同质量的传输隧道来传输用户数据。AN能够管理并合理利用自身的资源，按需为终端提供接入服务，并负责把控制信号和业务数据在终端和Core之间转发。
在图1所示的网络架构中，Core负责维护移动网络的签约数据、管理移动网络的网元，并为终端提供会话管理、移动性管理、策略管理、安全认证等功能。例如，在终端附着的时候，为终端提供入网认证；在终端有业务请求时，为终端分配网络资源；在终端移动的时候，为终端更新网络资源；在终端空闲的时候，为终端提供快恢复机制；在终端去附着的时候，为终端释放网络资源；在终端有业务数据时，为终端提供数据路由功能，如转发上行数据到DN，或者从DN接收下行数据并转发到AN。
在图1所示的网络架构中，DN是为用户提供业务服务的数据网络。实际通信过程中，客户端通常位于终端，服务端通常位于DN。DN可以是私有网络，如局域网，也可以是不受运营商管控的外部网络，如Internet，还可以是运营商共同部署的专有网络，如提供IP多媒体网络子系统(IP multimedia core network subsystem，IMS)服务的网络。
参阅图2所示，为本申请适用的一种具体的网络架构示意图。该网络架构为5G网络架构。该5G架构中的网元包括终端、无线接入网(radio access network，RAN)和数据网络(data network，DN)，图2中以终端为用户设备(user equipment，UE)为例。此外，该网络架构还包括核心网网元，核心网网元包括用户面功能(user plane function，UPF)网元和控制面功能网元。具体地，控制面功能网元包括但不限于接入和移动性管理功能(access and mobility management function，AMF)网元、会话管理功能(session management function，SMF)网元、认证服务器功能(authentication server function，AUSF)网元、应用功能(application function，AF)网元、统一数据管理(unified data management，UDM)网元、策略控制功能(policy control function，PCF)网元、网络开放功能网元(network exposure function，NEF)网元、NF存储库功能(NF repository function，NRF)网元和网络切片选择功能(network slice selection function，NSSF)网元。
可选地，在该网络架构中，控制面功能网元还可以包括局域网服务管理功能网元(LAN service management function，LSMF)。
实际应用中，LSMF网元可以作为独立的物理功能实体，也可以作为部署在其他网元(例如NEF网元，PCF网元，UDM网元)中的逻辑功能实体。
需要说明的是，在传统的核心网架构中，控制面功能网元之间采用点对点通信方式，即控制面功能网元之间的接口通信采用一套特定的消息，接口两端的控制面功能网元仅能使用这套特定的消息进行通信。而在5G核心网架构中，控制面采用服务化架构，即控制面功能网元之间的交互采用服务调用的方式，控制面功能网元会向其他控制面功能网元开放服务，供其他控制面功能网元调用。
下面对图2所示的网络架构中各网元的功能进行详细介绍。由于UE、RAN以及DN的功能在图1所示网络架构的相关描述中已经介绍过，下面重点介绍各个核心网网元的功能。
所述UPF网元是用户面的功能网元，主要负责连接外部网络，其包括了长期演进(long term evolution，LTE)的服务网关(serving gateway，SGW)和分组数据网网关(packet data networkgateway，PDN-GW)的相关功能。具体地，UDF可以根据SMF的路由规则执行用户数据包转发，如上行数据发送到DN或其他UPF；下行数据转发到其他UPF或者RAN。
所述AMF网元负责UE的接入管理和移动性管理，例如负责UE的状态维护、UE的可达性管理、非移动性管理接入层(mobility management non-access-stratum，MM NAS)消息的转发、会话管理(session management，SM)N2消息的转发。在实际应用中，AMF网元可实现LTE网络框架中MME里的移动性管理功能，还可实现接入管理功能。
所述SMF网元负责会话管理，为UE的会话分配资源、释放资源；其中资源包括会话服务质量(quality of service，QoS)、会话路径、转发规则等。
所述AUSF网元用于执行UE的的安全认证。
所述AF网元可以是第三方的应用控制平台，也可以是运营商自己的设备，所述AF网元可以为多个应用服务器提供服务。
所述UDM网元可存储UE的签约信息。
所述PCF网元用于进行用户策略管理，类似于LTE中的策略与计费规则功能(policy and charging rules function，PCRF)网元，主要负责策略授权、服务质量以及计费规则的生成，并将相应规则通过SMF网元下发至UPF网元，完成相应策略及规则的安装。
所述NEF网元用于以北向应用程序编程接口(application programming interface，API)的方式向第三方开放网络功能。
所述NRF网元用于为其他网元提供网络功能实体信息的存储和选择功能。
所述NSSF网元用于为UE选择网络切片。
在图2所示的网络架构中还可包含LSMF网元。LSMF网元用于进行LAN服务区管理。具体地，在定义LAN群组时，在LSMF中配置该群组的服务区域；或者，在更新LAN群组时，LSMF网元中更新该群组的服务区域。LSMF中存储的服务区域信息可发送给其他网元(例如AMF网元或UDM网元)，其他网元可根据该服务区域信息对该群组中的UE进行局域网通信的管理。
其中，图2所示的网络架构中，与本申请有关的网元主要包括：UE、AMF、UDM、LSMF、NEF和AF。
下面，对本申请实施例涉及的基本概念进行解释。需要说明的是，这些解释是为了让本申请更容易被理解，而不应该视为对本申请所要求的保护范围的限定。
一、局域网标识(local area network identification，LAN ID)
LAN ID可以理解为一个LAN群组的标识。也就是说，LAN ID可用于标识一个LAN群组或者一个特定的LAN服务。用同一LAN ID标识的终端属于同一LAN群组，可以使用该LAN ID对应的LAN服务，即用同一LAN ID标识的终端之间可以进行LAN通信。
具体地，从格式上来说，LAN ID可以是特殊的域名(如DNN)、字符串、内部组标识(internalgroup identifier)、外部组标识(external group identifier)，也可以是序列号。此外，LAN ID还可采用一些特殊的格式，例如LAN ID中还可包括提供商信息、运营商信息、网络信息、域信息等。
本申请实施例中，还涉及“终端的LAN ID”这一概念。对于某个终端来说，该终端可归属于一个或多个LAN群组或LAN服务。对于某个终端来说，该终端还可以签约一个或多个LAN群组或LAN服务。本申请实施例中，终端签约的任一个LAN群组或LAN服务的LAN ID可以理 解为该终端的LAN ID。对于某个终端来说，该终端还可以关联或者对应到一个或多个LAN群组或LAN服务。本申请实施例中，终端关联或者对应到任一个LAN群组或LAN服务的LAN ID可以理解为该终端的LAN ID。
二、LAN ID对应的服务区域信息
如前所述，LAN服务是有区域限制的。比如，某企业雇员的办公设备组成一个LAN群组，LAN仅能在该企业的办公区域内为LAN群组中的办公设备提供LAN服务(即LAN群组中的办公设备之间仅能在该企业的办公区域内进行LAN通信)，若企业雇员的办公设备不处于办公区域内，则LAN不再为该办公设备提供LAN服务。再比如，工厂中的设备组成一个LAN群组，LAN仅能在该工厂的厂房中为LAN群组中的设备提供LAN服务(即LAN群组中的设备之间仅能在厂房中进行LAN通信)，若设备不处于厂房中，则LAN不再为该设备提供LAN服务。当该设备再次移动到厂房中，LAN才可为该设备提供LAN服务。
上述可以为LAN群组中的终端提供LAN服务的区域可以理解为LAN群组的服务区域。由于LAN群组可以用LAN ID标识，因而LAN群组的服务区域也可以称为LAN ID对应的服务区域。本申请实施例中，将用于指示LAN ID对应的服务区域的信息称为LAN ID对应的服务区域信息。
需要说明的是，本申请实施例中，LAN ID对应的服务区域信息是一个LAN粒度的概念，即LAN ID对应的服务区域信息适用于LAN ID所述标识的LAN群组内的所有终端，LAN ID对应的服务区域信息仅与LAN群组有关，与LAN群组包含的终端的配置信息等可能并不相关。LAN可以在LAN ID对应的服务区域内为LAN群组中的终端提供LAN服务；但是对于某个终端来说，该终端位于LAN ID对应的服务区域内并不代表该终端一定可以与LAN群组内的其他终端进行LAN通信，该终端能否与LAN群组内的其他终端进行LAN通信还与该终端的签约数据等配置信息(例如该终端的注册区域)有关，相关内容将在后面介绍，此处不再赘述。
从表示方式上来说，LAN ID对应的服务区域信息包括但不限于跟踪区标识列表(tracking areaidentitylist，TA list)(或者称为TAL)、小区列表(cell list)以及地理位置信息这三种表示方式。可选地，当LAN ID对应的服务区域信息通过地理位置信息表示时，地理位置信息也可以转换为TA list或者cell list的表示方式。
示例性地，LAN ID对应的服务区域可以由N个跟踪区组成，N≥1。此时，LAN ID对应的服务区域信息可以由包含N个跟踪区标识的TAlist表示。
三、终端的注册区域信息
当终端在3GPP网络注册时，AMF网元会为终端分配一个TAL，该TAL中包括一组跟踪区标识的集合，这组跟踪区可视为终端的注册区域。AMF网元为终端分配注册区域时，考虑的因素包括但不限于：移动模式(例如终端的移动性统计数据)、移动限制(例如禁止接入的区域)、终端当前位置等。
终端的注册区域可以理解为终端可以与网络建立信令连接的区域：在终端处于空闲态，而网络有数据和信令需要发送到终端时，若终端位于注册区域内，则网络可寻呼终端以使终端可达(网络在注册区域内的所有基站上都发送寻呼信令)。
示例性地，当终端与网络没有信令连接(即终端处于空闲态)时，网络可在该终端的注册区域内向终端发送寻呼信令。若终端此时位于注册区域内，则终端与网络建立信令连接，终端转换为连接态；若终端移动到注册区域之外，由于网络无法寻呼到该终端，因而无法建立终端与网络之间的信令连接。
终端的注册区域信息可通过终端发起的注册流程生成：AMF网元接收到终端发送的注册请求消息(携带终端的ID)后，动态生成该终端的注册区域信息，并将该终端的ID以及该终端的注册区域信息对应存储到本地上下文中，核心网中的其他网元可根据该终端的ID向AMF查询该终端的注册区域信息。
需要说明的是，通过终端的注册流程，AMF网元可生成针对该终端的本地上下文，其中该终端的本地上下文中不仅包括该终端的ID以及该终端的注册区域信息，还包括其他信息。由于终端的注册流程为现有技术，且为实现本申请实施例主要需从本地上下文中获取终端的ID以及终端的注册区域信息，因此本申请实施例中对本地上下文中包含的对其他信息不再详细说明。
示例性地，终端的注册区域可以由M个跟踪区组成，M≥1。此时，终端的注册区域信息可以由包含M个跟踪区标识的TA list表示。
四、LAN ID对应的限制信息
LAN ID对应的限制信息可以理解为该LAN ID标识的LAN群组中的所有终端进行LAN通信的限制信息。
本申请实施中，LAN ID对应的限制信息的表示方式可以有多种。LAN ID对应的限制信息可以由禁止通信区域信息、限制通信区域信息的一种或者多种组成。其中，禁止通信区域信息用于指示禁止进行LAN通信的区域，LAN群组中的所有终端在该区域不允许进行任何类型的通信；限制通信区域信息用于指示限制进行LAN通信的区域，LAN群组中的所有终端在该区域内仅允许进行特定类型的通信，例如仅允许终端在该区域内响应寻呼信令。
此外，LAN ID对应的限制信息还可以包括可用的公共陆地移动网络(public land mobile network，PLMN)信息、禁止的PLMN信息、可用的无线接入技术(radio access technology，RAT)信息、禁止的RAT信息、可用的接入类型(Access Type)信息、禁止的Access Type信息、可用的核心网类型(Core Type)信息、禁止的Core Type信息中的一种或者多种构成。
其中，可用的PLMN信息用于指示LAN群组中可进行LAN通信的PLMN标识，对于LAN群组中的终端来说，只有在该终端的PLMN标识与可用的PLMN信息指示的PLMN标识相同的情况下，该终端才可进行LAN通信；禁止的PLMN信息用于指示LAN群组中不可进行LAN通信的PLMN标识，对于LAN群组中的终端来说，在该终端的PLMN标识与禁止的PLMN信息指示的PLMN标识相同的情况下，该终端不可进行LAN通信。
对于可用的RAT信息、禁止的RAT信息、可用的Access Type信息、禁止的Access Type信息、可用的Core Type信息、禁止的Core Type信息的解释可参照上述关于可用的PLMN信息、禁止的PLMN信息的相关解释，此处不再赘述。
通过以上介绍不难理解，LAN ID对应的限制信息可以理解为LAN ID对应的服务区域信息的一种补充。在终端处于LAN ID对应的服务区域中的情况下，并不代表LAN一定可以为该终端提供LAN服务，只有在该终端符合LAN ID对应的限制信息指示的可用于进行LAN通信的条件的情况下，LAN才可为该终端提供LAN服务。
比如，LAN ID标识的LAN群组内的某终端位于LAN ID对应的服务区域内，LAN ID对应的限制信息中包含禁止的PLMN信息(比如为PLMN A)，而该终端对应的PLMN标识为PLMN B，在这种情况下，LAN可为该终端提供LAN服务。
再比如，LAN ID标识的LAN群组内的某终端处于LAN ID对应的服务区域内，LAN ID对应的限制信息中包含可用的Access Type信息(比如为Access Type C)，而该终端的接入类 型为Access Type D，在这种情况下，由于LAN限制采用Access Type D接入网络的终端进行LAN通信，因而LAN不可为该终端提供LAN服务。
需要说明的是，本申请实施例中，LAN ID对应的限制信息是一个LAN粒度的概念，LAN ID对应的限制信息适用于LAN ID所标识的LAN群组内的所有终端，即LAN ID对应的限制信息仅与LAN群组有关，与LAN群组包含的终端的配置信息等均无关。
五、终端的限制信息
终端的限制信息可以理解为该终端进行LAN通信的限制信息。本申请实施中，终端的限制信息的表示方式可以有多种。终端的限制信息可以由禁止通信区域信息、允许通信区域信息、限制通信区域信息的一种或者多种组成。其中，禁止通信区域信息用于指示禁止所述终端进行LAN通信的区域；允许通信区域信息用于指示允许所述终端进行LAN通信的区域；限制通信区域信息用于指示限制所述终端进行LAN通信的区域，所述终端在该区域内仅允许进行特定类型的通信，例如仅允许所述终端在该区域内响应寻呼信令。
此外，终端的限制信息还可以包括可用的PLMN信息、禁止的PLMN信息、可用的RAT信息、禁止的RAT信息、可用的接入类型(Access Type)信息、禁止的Access Type信息、可用的核心网类型(Core Type)信息、禁止的Core Type信息中的一种或者多种构成。
其中，可用的PLMN信息用于指示可进行LAN通信的PLMN标识，只有在该终端的PLMN标识与可用的PLMN信息指示的PLMN标识相同的情况下，该终端才可进行LAN通信；禁止的PLMN信息用于指示不可进行LAN通信的PLMN标识，在该终端的PLMN标识与禁止的PLMN信息指示的PLMN标识相同的情况下，该终端不可进行LAN通信。
对于可用的RAT信息、禁止的RAT信息、可用的Access Type信息、禁止的Access Type信息、可用的Core Type信息、禁止的Core Type信息的解释可参照上述关于可用的PLMN信息、禁止的PLMN信息的相关解释，此处不再赘述。
如前所述，LAN可以在LAN ID对应的服务区域内为LAN群组中的终端提供LAN服务；但是对于某个终端来说，该终端位于LAN ID对应的服务区域内并不代表该终端一定可以与LAN群组内的其他终端进行LAN通信，该终端能否与LAN群组内的其他终端进行LAN通信还与该终端的注册区域有关，若该终端位于LAN ID对应的服务区域内，但该终端并不位于该终端的注册区域内，该终端也不可与LAN群组内的其他终端进行LAN通信。
需要说明的是，本申请实施例中，终端的限制信息是一个UE粒度的概念，终端的限制信息仅适用于该终端，即终端的限制信息对该终端所属的LAN群组中的其他终端并不适用。
六、终端的LAN通信区域信息
通过前面的介绍不难理解，终端与所属LAN群组内的其他终端进行LAN通信的条件至少包括：该终端位于LAN群组的ID(LAN ID)对应的服务区域内，且该终端位于该终端的注册区域内。也就是说，在该终端位于LAN ID对应的服务区域以及该终端的注册区域的交叉区域内时，该终端可与所属LAN群组内的其他终端进行LAN通信。本申请实施例中，将该交叉区域的指示信息称为终端的LAN通信区域信息。也就是说，终端的LAN通信区域信息可以理解为LAN ID对应的服务区域信息和终端的注册区域信息的交集。此外，如果终端的限制信息中包括允许通信区域信息，则终端的LAN通信区域信息可以理解为LAN ID对应的服务区域信息，终端的注册区域信息和终端的允许通信区域信息三者的交集。
那么，本申请实施例中，终端的LAN通信区域信息用于指示终端可与所属LAN群组内的其他终端进行LAN通信的区域。
需要说明的是，LAN通信区域信息是本申请实施例中采用的表达方式，其还可以用其他表达方式替代，只要该表达方式用于指示终端可与所属LAN群组内的其他终端进行LAN通信的区域即可。示例性地，终端的LAN通信区域信息可用如下表达方式替代：终端的LAN服务区域信息，终端对应的LAN服务区域信息，终端相关的LAN服务区域信息，终端关联的LAN服务区域信息；终端的LAN可用区域信息，终端对应的LAN可用区域信息，终端相关的LAN可用区域信息，终端关联的LAN可用区域信息；LAN的终端服务区域信息，LAN对应的终端服务区域信息，LAN相关的终端服务区域信息，LAN关联的终端服务区域信息；LAN的终端可用区域信息，LAN对应的终端可用区域信息，LAN相关的终端可用区域信息，LAN关联的终端可用区域信息。
示例性地，如图3所示，假设终端的注册区域为A，该终端所属LAN群组的ID(即LAN ID)对应的服务区域为B。那么，终端的LAN通信区域可以为区域C。
从表示方式上来说，终端的LAN通信区域信息包括但不限于TA list、cell list以及地理位置信息这三种表示方式。可选地，当终端的LAN通信区域信息通过地理位置信息表示时，地理位置信息也可以转换为TA list或者cell list的表示方式。
示例性地，终端的LAN通信区域可以由P个跟踪区组成，P≥1。此时，终端的LAN通信区域信息可以由包含P个跟踪区标识的TA list表示。
示例性地，终端的LAN通信区域可以由Q个小区组成，Q≥1。此时，终端的LAN通信区域信息可以由包含Q个小区标识的cell list表示。
七、LAN信息
本申请实施例中，LAN信息包括LAN ID以及终端的LAN通信区域信息，LAN信息可用于对终端的局域网通信进行管理。具体地，可由终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)根据终端的LAN信息对终端的局域网通信进行管理。
如前所述，终端的LAN通信区域信息可以理解为LAN ID对应的服务区域信息和终端的注册区域信息的交集。如果终端的限制信息中包括允许通信区域信息，则终端的LAN通信区域信息可以理解为LAN ID对应的服务区域信息、终端的注册区域信息和终端的允许通信区域信息三者的交集。特别地，在终端的限制信息中包括允许通信区域信息的情况下，终端的LAN通信区域信息也可以称为终端的服务限制信息。
具体地，终端根据该终端的LAN信息对终端的局域网通信进行管理的方式可以是：在终端发起局域网通信请求之前，终端可根据URSP(终端路由选择策略)获取绑定的LAN ID，并查看终端所在的位置；终端根据LAN ID和终端的位置，查看终端是否在LAN通信区域中。如果在，终端可以发起局域网通信请求(例如会话建立/修改请求)，然后发送数据；如果不在，终端不可以发起局域网通信请求。
此外，网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)也可根据该终端的LAN信息对终端的局域网通信进行管理。以AMF网元为例，AMF网元根据终端的LAN信息对终端的局域网通信进行管理，具体实现方式可以是：AMF网元在接收到终端发送的局域网通信请求(例如会话建立/修改请求)之后，会查看终端的位置，并根据会话信令的LAN ID以及终端的ID查找终端的LAN信息，若终端不在LAN通信区域中，则AMF会通知SMF网元，SMF网元做出相应处理：比如，SMF网元会拒绝为终端建立会话/修改会话；再比如，如果SMF网元在接收到AMF网元的通知时已经为终端建立会话会话，则SMF网元也可以去激活或者释放相关的会话。
其他网元根据该终端的LAN信息对终端的局域网通信进行管理的方式与AMF网元根据终端的LAN信息对终端的局域网通信进行管理的方式类似，此处不再赘述。
可选地，在确定终端的LAN信息时，还可考虑LAN ID对应的限制信息和终端的限制信息。也就是说，终端的LAN信息中还可包括LAN ID对应的限制信息和终端的限制信息。
终端在根据终端的LAN信息对终端的局域网通信进行管理时，还需考虑LAN ID对应的限制信息和终端的限制信息。只有在终端满足这些限制信息指示的可进行局域网通信的条件时，终端才可发起局域网通信。
网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)在根据终端的LAN信息对终端的局域网通信进行管理时，也需考虑LAN ID对应的限制信息和终端的限制信息。只有在终端满足这些限制信息指示的可进行局域网通信的条件时，网络(例如例如AMF网元、SMF网元、UDM网元或LSMF网元)才可能允许终端发起局域网通信。
例如，终端的LAN信息除了包含LAN ID和终端的LAN通信区域信息之外，还包括LAN ID对应的限制信息。LAN ID对应的限制信息中包含禁止通信区域信息。那么，终端在根据终端的LAN信息对终端的局域网通信进行管理时，若该终端位于LAN ID对应的限制信息中指示的禁止通信区域内，则会禁止该终端发起局域网通信请求。
八、群组创建/群组更新
如前所述，属于同一LAN群组的终端之间可以进行LAN通信。其中，LAN群组的相关信息(例如LAN群组的服务区域、LAN群组的LAN ID、属于该LAN群组的终端的ID、LAN ID对应的限制信息等)可通过群组创建/更新过程进行配置。
在群组创建过程中，可以由通信设备向用于进行群组管理的网元(以下称为“群组管理网元”，例如可以是LSMF网元或NEF网元)发送群组创建请求，以请求创建一个LAN群组。该群组创建请求中携带请求创建的LAN群组对应的服务区域信息以及属于该LAN群组的所有终端的ID；群组管理网元在接收到群组创建请求后可为该LAN群组分配一个LAN ID。至此，该LAN群组创建成功，LAN ID对应的服务区域信息即为群组创建请求中携带的服务区域信息。
群组更新过程可以分为两种：第一种用于更新LAN群组的服务区域信息，在LAN群组的服务区域发生变化时，通信设备可通过群组更新过程通知群组管理网元；第二种用于更新LAN群组的成员(即LAN群组中包含的终端)，LAN群组的成员发生变化时，通信设备可通过群组更新请求通知群组管理网元，例如将某个终端加入该LAN群组。
第一类群组更新过程可以如下：群组管理网元接收通信设备发送的群组更新请求，该群组更新请中携带LAN ID以及该LAN ID对应的服务区域信息；群组管理网元在接收到该群组更新请求后，可以对该LAN ID所标识的LAN群组的服务区域信息进行更新。
第二类群组更新过程可以如下：群组管理网元接收通信设备发送的群组更新请求，该群组更新请中携带LAN ID以及终端的ID；群组管理网元在接收到该群组更新请求后，可以将该UE ID对应的终端加入到LAN ID所表示的LAN群组中。
此外，群组管理网元接收到的群组更新请求也可以是用于指示删除LAN ID对应的群组成员的群组更新请求。群组管理网元在接收到用于指示删除某个终端的群组更新请求后，可通知AMF网元。AMF网元获知该终端已经从LAN ID标识的LAN群组中删除后，可以将该终端与该LAN ID相关的LAN信息删除(或置为空)，并通知终端将与该LAN ID相关的LAN信息删除(或置为空)。终端则不可再与LAN ID所标识的LAN群组中的终端进行局域网通信。
此外，通信设备也可通过一次群组更新过程实现上述两类更新。比如，群组管理网元接 收通信设备发送的群组更新请求，该群组更新请中携带LAN ID、该LAN ID对应的服务区域信息以及终端的ID；群组管理网元在接收到该群组更新请求后，可以将该UE ID对应的终端加入到LAN ID所表示的LAN群组中，同时对该LAN ID所标识的LAN群组的服务区域信息进行更新。
本申请实施例中，通信设备可向群组管理网元请求创建LAN群组或请求更新LAN群组，从而实现LAN群组的创建和更新。具体地，通信设备可以是AF网元，可以是操作维护管理(operation administration and maintenance，OAM)实体，也可以是用于进行群组创建/更新的终端。
其中，AF网元可以由垂直行业用户部署，例如可以是企业网、工业控制中的3GPP网络之外的应用服务器。AF网元也可以由移动网络运营商部署。AF网元主要用于向3GPP系统提供应用服务器的请求或策略信息等。第三方的应用(application)通过AF网元与3GPP系统进行交互和传递信息。
其中，OAM实体是运营商网管系统中的配置接口，面向运营商；运营商可以直接通过OAM实体在移动网络中的网元上配置参数。
基于图1-图2所示的网络架构，本申请实施提供一种局域网通信的管理方法，用以对LAN群组中终端的LAN通信进行管理。下面将分两个实施例(即实施例一和实施例二)对本申请提供的局域网通信的管理方法进行介绍。
其中，实施例一与实施例二的主要区别点在于确定终端的LAN信息的网元不同：在实施一中，由AMF网元确定终端的LAN信息并发送给终端；在实施例二中，由LSMF网元确定终端的LAN信息并发送给AMF网元，再由AMF网元将终端的LAN信息发送给终端。
需要说明的是，本申请实施例中，LSMF网元可视为前述群组管理网元，用于对LAN群组进行管理。如前面介绍中提到，LSMF网元在实际应用中可以作为独立的物理功能实体，也可以作为部署在其他网元(例如NEF网元，PCF网元，UDM网元)中的逻辑功能实体。因此，若LSMF网元作为部署在其他网元(例如NEF网元，PCF网元，UDM网元)中的逻辑功能实体，那么LSMF网元所执行的操作可视为该其他网元(例如NEF网元，PCF网元，UDM网元)所执行的操作。本申请实施例中，均以LSMF执行LAN群组管理的相关操作为例进行示意，实际实现时，LSMF网元执行的操作也可由其他网元(例如NEF网元，PCF网元，UDM网元)执行。也就是说，在本申请实施例的描述中，LSMF网元也可以替换为其他网元，例如NEF网元，PCF网元，UDM网元。
需要说明的是，如果LSMF网元位于UDM网元内，实施例中UDM网元与LSMF网元的交互可视为内部操作。
实施例一
参见图4，本申请实施例提供的一种局域网通信的管理方法包括如下步骤：
S401：LSMF网元接收通信设备发送的群组管理请求。
其中，群组管理请求可以是群组创建请求，也可以是群组更新请求。
通信设备可以为以下任一种：AF网元；OAM实体；指定终端。其中，指定终端可以是具有创建群组或者修改群组权限的终端，该指定终端可以是群组成员之一，也可以是群组成员之外的终端，本申请实施例不做限定。
S402：LSMF网元根据所述群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
需要说明的是，LSMF网元在S402中获取的终端的ID为LAN ID所标识LAN群组的群组成员的ID，该终端与前述用于向LSMF网元发送群组管理请求的指定终端没有必然联系。LSMF网元在接收到群组管理请求后，可以获取到一个终端列表(UE list)，该列表中包含LAN ID所标识LAN群组中的所有终端的ID，AMF网元后续可在不同场景中确定该终端列表中的某个终端的LAN信息，S401中获取到的终端的ID所指示的终端即为后续需要确定其LAN信息的终端。
其中，LSMF网元可通过两种方式获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息
方式一：通过群组创建过程获取
LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息，具体可通过如下方式实现：LSMF网元接收通信设备发送的群组创建请求，该群组创建请求用于请求创建进行LAN通信的群组，该群组创建请求中携带该群组对应的服务区域信息以及终端的ID；LSMF网元为该群组分配LAN ID；LSMF网元确定LAN ID对应的服务区域即为群组创建请求中携带的群组对应的服务区域。
需要说明的是，在方式一中，通信设备发送的群组创建请求中携带该群组中的所有终端的ID，上述所有终端的ID中包含S401中获取的终端的ID，即LSMF网元通过群组创建请求可获取该终端的ID。
方式二：通过群组更新过程获取
LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息，具体可通过如下方式实现：LSMF网元接收通信设备发送的第一群组更新请求，该第一群组更新请求用于请求更新LAN ID对应的群组，该第一群组更新请求中携带LAN ID以及LAN ID对应的服务区域信息；LSMF网元根据LAN ID确定终端的ID；或者，LSMF网元接收通信设备发送的第二群组更新请求，该第二群组更新请求用于请求更新LAN ID对应的群组，该第二群组更新请求中携带终端的ID、终端的LAN ID；LSMF网元根据LAN ID确定LAN ID对应的服务区域信息。
如前面的介绍，群组更新过程可以分为两种：第一种用于更新LAN群组的服务区域信息，第二种用于更新LAN群组的成员(即该LAN群组中包含的终端)。在方式二中，第一群组更新请求可以视为用于更新LAN群组的服务区域信息的群组更新请求，第二群组更新请求可以视为用于更新LAN群组成员的群组更新请求。
通过第一群组更新请求对LAN ID对应的服务区域信息进行更新后，LSMF网元可获取更新后的、LAN ID对应的服务区域信息。由于在该LAN群组创建时LSMF网元已获取LAN ID和终端的ID，因而在接收到第一群组更新请求后，对第一群组更新请求携带的LAN ID所标识群组的服务区域信息进行更新后，即相当于获取到终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
通过第二群组更新请求对LAN群组的成员进行更新后，可将该终端加入到LAN群组中，LSMF网元可获取到该终端的ID。由于在该LAN群组创建时LSMF网元已获取LAN ID和LAN ID对应的服务区域信息，因而在接收到第二群组更新请求后，通过查找第二群组更新请求携带的LAN ID对应的服务区域信息，即可获取该终端的LAN ID对应的服务区域信息。此外，LSMF网元接收到的群组更新请求也可以是用于指示删除LAN ID对应的群组成员的群组更新请求(以下称为第三群组更新请求)。LSMF网元在接收到用于指示删除某个终端的第三群组更新请求后，可通知AMF网元。AMF网元获知该终端已经从LAN ID标识的LAN群组中删除后，可 以将该终端与该LAN ID相关的LAN信息删除(或置为空)，并通知终端将与该LAN ID相关的LAN信息删除(或置为空)。终端则不可再与LAN ID所标识的LAN群组中的终端进行局域网通信。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，LSMF网元也可以通过S401一并获取。
S403：AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
其中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息的方式有多种，AMF网元可通过与LSMF网元、UDM网元、终端等的交互过程获取到这些信息，具体方式将在下面的实施例A、实施例B、实施例C和实施例D中分别进行介绍，此处不再赘述。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，AMF网元在S403中也可获取这些限制信息。
S404：AMF网元根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。
具体地，终端的LAN通信区域信息的确定方法可以参考之前的描述，这里不再赘述。
S405：AMF网元向终端发送终端的LAN信息。
其中，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
此外，若AMF网元在S403中还获取到终端的限制信息或LAN ID对应的限制信息，终端的LAN信息还可包括这些限制信息，终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)根据LAN信息对终端的LAN通信进行管理时，还需考虑这些限制信息。具体方式可参照前面关于终端的LAN信息的相关描述，此处不再赘述。
本申请实施例中，AMF网元可通过配置更新消息、注册响应消息或者PDU会话管理响应消息中的任一种向终端发送终端的LAN信息。其中，PDU会话管理响应可以是PDU会话建立响应、PDU会话修改响应或者PDU会话释放响应。
S406：终端根据LAN信息对终端的LAN通信进行管理。
具体地，S406中，终端根据终端的LAN信息对终端的局域网通信进行管理，具体可通过如下方式实现：终端在终端位置不在LAN通信区域内的情况下，禁止终端发起第二LAN通信请求。
其中，第二LAN通信请求可以是信令也可以是数据。具体地，第二LAN通信请求可以是PDU会话建立请求、PDU会话修改请求，也可以是用于传输数据的消息。
在终端发起第二LAN通信请求之前，终端可查看自身的位置，并根据第二LAN通信请求对应的LAN ID查找终端的LAN通信区域信息。在终端的位置不在LAN通信区域信息指示的通信区域内的情况下，终端禁止发起第二LAN通信请求。当然，若终端的位置在LAN通信区域信息指示的通信区域内，则终端可发起第二LAN通信请求。
实际实现时，终端获取LAN信息之后，可以把其中的LAN ID当做局域数据网络数据网络名称(localareadatanetworkdatanetworkname，LADN DNN)，使用局域数据网络(localareadatanetwork，LADN)类似机制对终端的局域网通信进行管理，从而限制终端使用5GLAN服务。
此外，网络中的其他网元也可根据终端的LAN信息对终端的局域网通信进行管理，例如 SMF网元、AMF网元、UDM网元和LSMF网元。以AMF网元为例，AMF网元根据终端的LAN信息对终端的局域网通信进行管理，具体实现方式可以是：AMF网元接收终端发送的第一LAN通信请求，该第一LAN通信请求中携带LAN ID；AMF根据LAN ID以及终端的ID确定终端的LAN信息；AMF网元在终端的位置不在LAN通信区域内的情况下，上报SMF网元，使得SMF网元对第一LAN通信请求进行处理。
其中，第一LAN通信请求可以是信令也可以是数据。具体地，第一LAN通信请求可以是PDU会话建立请求、PDU会话修改请求，也可以是用于传输数据的消息。
在AMF网元接收到第一LAN通信请求之后，AMF网元可根据该会话查找本地上下文，获取该终端的ID；然后根据第一LAN通信请求携带的LAN ID对应查找该终端的LAN信息，从而获取该终端的通信区域信息。AMF查看终端的位置后，对终端的位置是否在LAN通信区域信息指示的通信区域内进行判断。若终端的位置不位于LAN通信区域信息指示的通信区域内，则AMF网元上报SMF网元，使得SMF网元对第一LAN通信请求进行处理。当然，若终端的位置位于LAN通信区域信息指示的通信区域内，则AMF网元也可上报SMF网元，使得SMF网元对第一LAN通信请求进行响应。
具体地，在终端的位置不位于LAN通信区域信息指示的通信区域内的情况下，SMF网元对第一LAN通信请求进行处理，可采用如下方式：SMF网元可拒绝终端发起的第一LAN通信请求，例如拒绝为终端建立/修改会话；如果SMF网元在接收到AMF网元的通知时已经为终端建立会话，则SMF网元也可去激活或者释放相关的会话。
实际实现时，AMF网元也可以LAN ID当做LADN DNN，使用LADN类似机制对终端的局域网通信进行管理，从而限制终端使用5GLAN服务。
需要说明的是，AMF网元仅为本申请实施例中采用的表达方式，在不同的网络制式或网络环境下，AMF网元可以用不同的网元名称所替代，只要该网元可用于实现本申请实施例中AMF网元的功能即可。同样地，UDM网元和LSMF网元也可由其他可用于实现同样功能的网元所代替，此处不再赘述。
由前面关于终端的LAN信息的介绍可知，确定终端的LAN信息至少需要该终端的LAN ID、该终端的LAN ID对应的服务区域信息和该终端的注册区域信息。其中，终端的注册区域信息可由AMF网元生成并保存在本地上下文中，而该终端的LAN ID对应的服务区域信息需要AMF网元从其他网元(例如LSMF网元或UDM网元)获取。
根据AMF获取LAN ID对应的服务区域信息的渠道和方式的不同，实施例一又可以分为四个实施例：实施例A、实施例B、实施例C和实施例D。
在实施例A中，LSMF网元将LAN ID对应的服务区域信息作为配置参数直接发送给AMF网元，将终端的LAN签约信息(例如，LAN ID以及LAN ID标识的LAN群组中的终端的ID)作为配置参数发送给UDM网元；在实施例B中，LSMF网元先将终端的LAN签约信息作为配置参数发送给UDM网元，然后LSMF网元基于AMF网元的请求将LAN ID对应的服务区域信息发送给AMF网元，UDM网元可直接将终端的LAN签约信息发送给AMF网元，也可基于AMF网元的请求将终端的LAN签约信息发送给AMF网元；在实施例C中，LSMF网元将终端的LAN签约信息以及LAN ID对应的服务区域信息作为配置参数发送给UDM网元，UDM网元可直接将这些信息发送给AMF网元，或者基于AMF网元的请求将这些信息发送给AMF网元，以供AMF网元确定该终端的LAN信息使用；在实施例D中，LSMF网元未向UDM网元发送配置参数，而是将终端的LAN签约信息以及LAN ID对应的服务区域信息等信息均保存在本地，然后LSMF网元 可直接将这些信息发送给AMF网元，或者基于AMF网元的请求将这些信息发送给AMF网元，以供AMF网元确定该终端的LAN信息使用。
不难看出，在实施例A、实施例B和实施例C中，LSMF网元均向UDM网元发送了配置参数(以下称为第二配置参数)，在实施例A中，LSMF网元还向AMF网元发送了配置参数(以下称为第一配置参数)。
其中，第二配置参数包括的参数类型会有所不同。比如，第二配置参数中可仅包括LAN ID以及终端的ID；比如，除了LAN ID以及终端的ID之外，第二配置参数中还可包括该终端的限制信息；比如，除了LAN ID以及终端的ID之外，第二配置参数中还可包括LAN ID对应的服务区域信息；再比如，除了LAN ID以及终端的ID之外，第二配置参数中还可包括LAN ID对应的限制信息。第二配置参数在不同的实施例中包括哪些参数，将在后面的实施例A、实施例B、实施例C中进行详细介绍，此处不再赘述。
下面对实施例A、实施例B、实施例C和实施例D这四个实施例分别进行详细介绍。
需要说明的是，由于在实施例A、实施例B、实施例C和实施例D中，LSMF网元执行步骤S401从通信设备接收群组管理请求的方式相同，因而在实施例A、实施例B、实施例C和实施例D的附图以及说明中，略去了LSMF网元接收群组管理请求的步骤。
实施例A
在实施例A中，LSMF网元将LAN ID对应的服务区域信息作为配置参数直接发送给AMF网元，将终端的LAN签约信息(例如，LAN ID以及LAN ID标识的LAN群组中的终端的ID)作为配置参数发送给UDM网元，以供AMF网元确定终端的LAN信息时使用。
也就是说，在实施例A中，LSMF网元在获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，可根据LAN ID对应的服务区域信息选择AMF网元和UDM网元；然后，LSMF网元向选择的AMF网元发送第一配置参数，并向选择的UDM网元发送第二配置采纳数，该第一配置参数中包括LAN ID以及LAN ID对应的服务区域信息，该第二配置参数中包括LAN ID以及终端的ID。
可选地，该第一配置参数中还可包含LAN ID对应的限制信息，该第二配置参数中还可包含终端的限制信息。
结合以上对图4所示的局域网通信的管理方法的介绍，若采用实施例A的方案，则图4所示的局域网通信的管理方法可以如图5所示。图5中，该方法包括如下步骤。
S501：LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，LSMF网元也可以通过S501一并获取。
其中，S501中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式与S401中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式相同(通过群组管理请求获取)，重复之处此处不再赘述。
S502：LSMF网元根据LAN ID对应的服务区域信息选择UDM网元以及AMF网元。
其中，LSMF网元选择的UDM网元可以是LAN ID对应的服务区域内的所有UDM网元；LSMF网元选择的AMF网元可以是LAN ID对应的服务区域内的所有AMF网元。
也就是说，在难以获知用于对LAN ID所标识群组内的终端进行统一数据管理的网元是哪一个UDM网元的情况下，LSMF网元可将第二配置参数发送给LAN ID对应的服务区域内的所有UDM网元。在难以获知用于LAN ID所标识LAN群组内的终端进行接入和移动性管理网元的 是哪一个AMF网元的情况下，LSMF网元可将第一配置参数发送给LAN ID对应的服务区域内的所有AMF网元。
S503：LSMF网元向选择的UDM网元发送第二配置参数。其中，第二配置参数包括LAN ID以及终端的ID。
可选地，第二配置参数中还可包含终端的限制信息。
S504：LSMF网元向选择的AMF网元发送第一配置参数。
其中，第一配置参数包括LAN ID以及LAN ID对应的服务区域信息。
可选地，第一配置参数中还可包含LAN ID对应的限制信息。
本申请实施例中对S503和S504的执行顺序不做限定，可先执行S503再执行S504，也可先执行S504再执行S503，或者S503和S504也可同时执行。
S505：AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，AMF网元在S505中也可获取这些限制信息，以供确定该终端的LAN信息时使用。
S506：AMF网元根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。
S507：AMF网元向终端发送终端的LAN信息。
其中，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
此外，若AMF网元在S505中还获取到终端的限制信息或LAN ID对应的限制信息，终端的LAN信息还可包括这些限制信息，终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)根据LAN信息对终端的LAN通信进行管理时，还需考虑这些限制信息。具体方式可参照前面关于终端的LAN信息的相关描述，此处不再赘述。
S508：终端根据LAN信息对终端的LAN通信进行管理。
在S508中，终端根据LAN信息对终端的LAN通信进行管理的具体方式与S406中终端根据LAN信息对终端的LAN通信进行管理的具体方式相同，重复之处不再赘述。
此外，网络中的其他网元也可根据终端的LAN信息对终端的局域网通信进行管理，其具体实现方式在图4所示方法中也有描述，此处不再赘述。
需要注意的是，在实施例A的步骤S505中，AMF网元可基于与终端的不同的交互流程来获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，并通过不同的交互流程将该终端的LAN信息发送给终端。
例如，对于已经在网络中注册的终端，AMF网元可在接收到该终端的签约数据更新通知，且该签约数据更新通知中包含LAN ID(即针对该终端在该LAN群组中的局域网通信的签约数据发生变化)的情况下，触发确定该终端的LAN信息的步骤，并通过配置更新消息将终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息进行局域网通信。
例如，对于未在网络中注册的终端，AMF网元可在该终端发起注册请求的情况下，向UDM网元请求该终端的签约数据，并根据UDM返回的信息确定该终端的LAN信息，然后通过注册响应消息将该终端的LAN信息发送给该终端，从而使得该终端在完成注册流程后即可根据LAN信息进行局域网通信。
例如，AMF还可在终端发起PDU会话管理请求的情况下，确定该终端的LAN信息，并通过PDU会话管理响应将该终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息进行局域网通信。
下面结合附图说明步骤S505中AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息的三种具体实现方式。
方式一
对于已经在网络中注册的终端，若LSMF网元接收到群组创建请求或群组更新请求，可将终端的签约信息通知到UDM网元，UDM网元会向AMF网元发送签约数据更新通知。AMF网元可在接收到该终端的签约数据更新通知，且该签约数据更新通知中包含该终端的LAN ID(即针对该终端在该LAN群组中的局域网通信的签约数据发生变化)的情况下，触发确定该终端的LAN信息的操作，并通过配置更新消息将终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息对终端的局域网通信进行管理。
具体地，采用方式一时，S505中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收UDM网元发送的第四签约数据更新通知，第四签约数据更新通知包括LAN ID以及终端的ID；AMF根据终端的ID获取终端的注册区域信息；AMF网元获取第四签约数据更新通知中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息的具体实现方式可以为：AMF网元向终端发送第三配置更新消息，第三配置更新消息包括终端的LAN信息。
在方式一中，对于已经在网络中注册的终端来说，AMF网元中保存有该终端的上下文，AMF网元在接收到第四签约数据更新通知后，可通过查找上下文获取第四签约数据更新通知中携带的终端的ID所对应的注册区域信息，即该终端的注册区域信息。此外，AMF网元还可获取第四签约数据更新通知中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息。至此，AMF网元已获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
也就是说，在方式一中，UDM网元在接收到LSMF网元发送的第二配置参数后，确定终端已在网络中注册，则UDM可直接通过第四签约数据更新通知将第二配置参数发送给AMF网元，以便AMF网元根据第二配置参数和其他参数(例如第一配置参数)确定已注册终端的LAN信息，并将LAN信息发送给终端，使得已注册终端可基于该终端的LAN信息进行局域网通信。
此外，若UDM接收到的第二配置参数中还包括该终端的限制信息，第四签约数据更新通知中还可携带该终端的限制信息，以便AMF网元确定该终端的LAN信息时使用。
方式二
对于未在网络中注册的终端，AMF网元无法通过配置更新流程将终端的LAN信息发送给终端。AMF网元可在该终端发起注册请求的情况下，触发确定该终端的LAN信息的操作，即向UDM网元请求该终端的签约数据，并根据UDM网元返回的签约数据确定该终端的LAN信息，然后通过注册响应消息将该终端的LAN信息发送给该终端，使得该终端在完成注册流程后即可根据LAN信息进行局域网通信的管理。
具体地，采用方式二时，S505中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收终端发送的第三注册请求消息，第三注册请求消息中携带终端的ID；AMF网元向UDM网元发送第四签 约数据请求消息，第四签约数据请求消息中携带终端的ID；AMF网元接收UDM网元发送的第四签约数据响应消息，第四签约数据响应消息中携带LAN ID；AMF生成终端的注册区域信息；AMF网元获取第四签约数据响应消息中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息。
然后，AMF网元向终端发送所述终端的LAN信息，其具体实现方式可以是：AMF网元向终端发送第三注册响应消息，第三注册响应消息携带该终端的LAN信息。
在方式二中，第四签约数据响应消息中携带LAN ID，即表示UDM网元将请求进行注册的终端加入该LAN ID所标识的LAN群组中。由于在创建该LAN群组时，LSMF网元已经获取到该LAN群组的LAN ID以及该LAN ID对应的服务区域信息，因而AMF网元可在接收到第四签约数据响应消息后通过查找第一配置参数，得到第四签约数据响应消息中携带的LAN ID对应的服务区域信息。此外，在终端的注册流程中，AMF网元会动态生成请求进行注册的终端的注册区域信息，因而在方式二中，AMF网元在接收到第四签约数据响应消息后，即可生成该终端的注册区域信息。至此，AMF网元已获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
可选地，若UDM网元接收到的第二配置参数中还包括该终端的限制信息，第四签约数据响应消息中还可携带该终端的限制信息，以供AMF网元确定该终端的LAN信息时使用。
方式三
对于已经在网络中注册的终端，AMF还可在该终端发起PDU会话管理请求的情况下，触发确定该终端的LAN信息的操作，并通过PDU会话管理响应将该终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息进行局域网通信的管理。
具体地，采用方式三时，S505中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收终端发送的第一PDU会话管理请求，第一PDU会话管理请求中携带LAN ID；AMF网元从终端的上下文中，获取终端的注册区域信息；AMF网元获取第一PDU会话管理请求中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息，其具体实现方式可以是：AMF网元向终端发送第一PDU会话管理响应，第一PDU会话管理响应携带终端的LAN信息。
其中，第一PDU会话管理请求可以是PDU会话建立请求、PDU会话修改请求或PDU会话释放请求；相应地，第一PDU会话管理响应可以是PDU会话建立响应、PDU会话修改响应或PDU会话释放响应。
方式三中，已注册终端已经与AMF网元建立单独的信令连接，因而AMF网元在该AMF网元与该终端间的专用信道上接收到第一PDU会话管理请求后，即可获知该终端的ID，进而可根据该终端注册时保存的上下文信息确定该终端的注册区域信息。此外，AMF网元还可获取第一PDU会话管理请求中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息。至此，AMF网元已获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
其中，终端向AMF网元发送的第一PDU会话管理请求中携带LAN ID，其具体含义可以是：终端希望与该LAN群组中的终端进行局域网通信，终端可向AMF网元发送第一PDU会话管理请求，AMF网元接收到第一PDU会话管理请求后触发确定该终端的LAN信息的过程。AMF网元对该第一PDU会话管理请求进行响应后，即表示该终端可以与该LAN群组中的终端进行局域 网通信。
需要说明的是，AMF网元在接收到第一PDU会话管理请求后，会通过与SMF网元的交互进行PDU会话处理，然后再向终端发送第一PDU会话管理响应。由于PDU会话处理流程为现有技术，因此本申请实施例中不再详细描述。
此外，在方式三中，该终端能否加入第一PDU会话管理请求中携带的LAN ID所标识的LAN群组，还可通过UDM网元鉴权后确定。即，在AMF网元接收终端发送的第一PDU会话管理请求之后，AMF网元可向UDM网元发送第五签约数据请求消息，第五签约数据请求消息中携带终端的ID以及LAN ID；然后，AMF网元接收UDM网元发送的第五签约数据响应消息。
AMF网元在接收到第五签约数据响应消息之后，即表示该终端可以与该LAN群组中的终端进行局域网通信，此时可触发AMF网元执行确定该终端的LAN信息的操作。
可选地，在方式三中，若UDM网元接收到的第二配置参数中还包括该终端的限制信息，第五签约数据响应消息中还可携带该终端的限制信息，以供AMF网元确定该终端的LAN信息时使用。
需要说明的是，上述三种方式可以针对不同的终端单独使用(即每个终端仅采用上述三种方式中的一种来实现LAN信息确认和接收)，也可针对同一终端使用上述三种方式的任意几种。例如，在某终端发起注册请求时使用方式二确定该终端的LAN信息，在该终端所属的LAN群组更新后，可通过方式一确定该终端更新后的LAN信息。此外，在该终端终端发起PDU会话管理请求时，AMF也可再次确认该终端的LAN信息，并将确认后的LAN信息发送给终端，以便能及时更新该终端的LAN信息。
以上是对实施例A的介绍。基于同一发明构思，本申请实施例还提供一种局域网通信的管理方法，该方法可视为图5所示方法的一个具体示例。参见图6，该方法包括如下步骤。
1.1、LSMF网元从NEF网元/AF网元接收群组(Group)创建/更新消息，获取到局域网标识(LAN ID)、该LAN ID对应的服务区域信息(servicearea)、该局域网群组中的UEID、UE的限制信息(restrictions1)以及该LAN ID对应的限制信息(restrictions2)。
1.2、LSMF网元创建/更新group的服务区域信息，并根据LAN ID对应的服务区域信息选择UDM网元和AMF网元。
其中，LSMF网元选择的UDM网元可以为LAN ID对应的服务区域内的所有UDM网元，LSMF网元选择的AMF网元可以为LAN ID对应的服务区域内的所有AMF网元。
2.1、LSMF网元向选择的UDM网元发送配置参数1(Configure1)，其中携带LAN ID、UE ID和restrictions1。
2.2、LSMF网元向选择的AMF网元发送配置参数2(Configure2)，其中携带LAN ID、service area和restrictions2。
A：对于群组中已注册的UE，可采用如下方法更新该UE的LAN信息
3A、针对Group中已注册的UE，UDM网元向为UE服务的AMF网元发送签约数据更新通知(notification)，其中携带LAN ID、UE ID和restrictions1。
4A、为UE服务的AMF网元根据UE ID确定UE的注册区域信息，根据UE的注册区域信息、service area、LAN ID、restrictions1和restrictions2，确定该UE的LAN信息。
5A、AMF网元通过UE配置更新流程中的UE配置更新指令(UE Configuration Update Command)，把LAN信息配置到UE。
其中，UE配置更新指令可视为第三配置更新消息的一个具体示例。
B：对于群组中未注册的UE，可采用如下方法更新该UE的LAN信息
3B、UE发送注册请求(registration request)消息给AMF网元，其中携带UE ID。
4B、AMF网元发送签约数据请求(携带UE ID)给UDM网元，UDM网元返回签约数据响应消息；如果UE签约了此LAN服务，AMF网元获取的签约数据响应消息中携带UE的签约LAN ID和restrictions1；AMF网元根据LAN ID确定LAN ID对应的服务区域信息，根据注册流程中为UE动态生成的注册区域信息、LAN ID对应的服务区域、LAN ID、restrictions1和restrictions2，确定UE的LAN信息。
5B、AMF网元通过注册响应(registration response)消息，把LAN信息配置到UE。
C：在会话流程中配置UE的LAN信息
3C、UE发送非接入层消息(NAS Message)给AMF网元，该NASMessage中携带会话ID(Session ID)、LAN ID和PDU会话管理请求；其中PDU会话管理请求可以是会话创建请求、会话修改请求或会话释放请求。
4C、AMF网元发送签约数据请求(携带UE ID和LAN ID)给UDM网元，UDM网元返回签约数据响应消息，其中可携带restrictions1；如果UE签约了此LAN服务，AMF网元可根据LAN ID确定LAN ID对应的服务区域信息，根据LAN ID、本地上下文中查找到的UE的注册区域信息、LAN ID对应的服务区域信息、restrictions1和restrictions2，确定UE的LAN信息。
此外，AMF网元可按照现有的会话流程，请求SMF网元处理该会话管理请求。
5C、AMF网元发送非接入层消息(NAS Message)给UE，该NAS Message中携带会话ID(Session ID)、LAN信息和PDU会话管理响应，从而把LAN信息配置到UE。
其中，PDU会话管理响应可从SMF网元获取。
6、UE获取LAN信息之后，可以把其中的LAN ID当做LADN DNN，复用LADN类似机制限制UE的LAN会话，从而限制UE使用5GLAN服务。
同样地，AMF网元和SMF网元也可把该LAN ID当做LADN DNN，使用LADN类似机制处理UE的LAN会话。
其中，UE的LAN信息中还可包括restrictions1和restrictions2，作为UE或者网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)处理LAN会话时参考的信息。
实施例B
在实施例B中，LSMF网元先将终端的LAN签约信息作为配置参数发送给UDM网元，然后LSMF网元基于AMF网元的请求将LAN ID对应的服务区域信息发送给AMF网元，UDM网元可直接将终端的LAN签约信息发送给AMF网元，也可基于AMF网元的请求将终端的LAN签约信息发送给AMF网元。具体地，AMF网元可在触发确定终端的LAN信息的情况下，向LSMF网元请求获取LAN ID对应的服务区域信息，以供AMF网元确定终端的LAN信息时使用。
S701：LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，LSMF网元也可以通过S701一并获取。
其中，S701中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式与S401中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式相同(通过群组管理请求获取)，重复之处此处不再赘述。
S702：LSMF网元根据LAN ID对应的服务区域信息选择UDM网元。
具体地，S702中，LSMF网元选择的UDM网元可以是LAN ID对应的服务区域信息指示的服务区域内的所有UDM网元。
也就是说，在难以获知用于对LAN ID所标识群组内的终端进行统一数据管理的网元是哪一个UDM网元的情况下，LSMF网元可将第二配置参数发送给LAN ID对应的服务区域内的所有UDM网元。
S703：LSMF网元向UDM网元发送第二配置参数。
其中，第二配置参数包括LAN ID以及终端的ID。
可选地，第二配置参数中还可包含终端的限制信息。
S704：AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，AMF网元在S704中也可获取这些限制信息，以供确定该终端的LAN信息时使用。
S705：AMF网元根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。
S706：AMF网元向终端发送终端的LAN信息。
其中，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
此外，若AMF网元在S704中还获取到终端的限制信息或LAN ID对应的限制信息，终端的LAN信息还可包括这些限制信息，终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)根据LAN信息对终端的LAN通信进行管理时，还需考虑这些限制信息。具体方式可参照前面关于终端的LAN信息的相关描述，此处不再赘述。
S707：终端根据LAN信息对终端的LAN通信进行管理。
在S707中，终端根据LAN信息对终端的LAN通信进行管理的具体方式与S406中终端根据LAN信息对终端的LAN通信进行管理的具体方式相同，重复之处不再赘述。
此外，网络中的其他网元也可根据终端的LAN信息对终端的局域网通信进行管理，其具体实现方式在图4所示方法中也有描述，此处不再赘述。
需要注意的是，在实施例B的步骤S704中，AMF网元可基于与终端的不同的交互流程来判断确定该终端的LAN信息的时机，从而获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
下面结合附图说明步骤S704中AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息的三种具体实现方式。
方式一
对于已经在网络中注册的终端，若LSMF网元接收到群组创建请求或群组更新请求，可将终端的签约信息通知到UDM网元，UDM网元会向AMF网元发送签约数据更新通知。AMF网元可在接收到该终端的签约数据更新通知，且该签约数据更新通知中包含该终端的LAN ID(即针对该终端在该LAN群组中的局域网通信的签约数据发生变化)的情况下，触发确定该终端的LAN信息的操作，并通过配置更新消息将终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息对终端的局域网通信进行管理。
具体地，采用方式一时，S704中AMF网元获取终端的注册区域信息、终端的局域网标识 LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收UDM网元发送的第一签约数据更新通知，第一签约数据更新通知包括LAN ID以及终端的ID；AMF根据终端的ID获取终端的注册区域信息；AMF网元向LSMF网元发送第一请求消息，第一请求消息中携带LAN ID，第一请求消息用于请求获取LAN ID对应的服务区域信息；AMF网元接收LSMF网元发送的第一响应消息，第一响应消息中携带LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息的具体实现方式可以为：AMF网元向终端发送第一配置更新消息，第一配置更新消息包括终端的LAN信息。
在方式一中，AMF网元在接收到第一签约数据更新通知后，触发确定该终端的LAN信息的操作。对于已经在网络中注册的终端来说，AMF网元中保存有该终端的上下文，AMF网元在接收到第一签约数据更新通知后，可通过查找上下文获取第一签约数据更新通知中携带的终端的ID所对应的注册区域信息，即该终端的注册区域信息。此外，此时AMF网元可向LSMF网元发送第一请求消息，以请求获取所述LAN ID对应的服务区域信息。至此，AMF网元已获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
也就是说，在方式一中，UDM网元在接收到LSMF网元发送的第二配置参数后，确定终端已在网络中注册，则UDM网元可直接通过第一签约数据更新通知将第二配置参数发送给AMF网元，以便AMF网元可根据第二配置参数和其他参数(例如通过第一响应消息获取的LAN ID对应的服务区域信息)确定已注册终端的LAN信息，并将LAN信息发送给终端，使得已注册终端可基于该终端的LAN信息进行局域网通信。
此外，若UDM网元接收到的第二配置参数中还包括该终端的限制信息，第一签约数据更新通知中还可携带该终端的限制信息，以供AMF网元确定该终端的LAN信息时使用。
方式二
对于未在网络中注册的终端，AMF网元无法通过配置更新流程将终端的LAN信息发送给终端。AMF网元可在该终端发起注册请求的情况下，触发确定该终端的LAN信息的操作，即向UDM网元请求该终端的签约数据，并根据UDM网元返回的签约数据确定该终端的LAN信息，然后通过注册响应消息将该终端的LAN信息发送给该终端，使得该终端在完成注册流程后即可根据LAN信息进行局域网通信的管理。
具体地，采用方式二时，S704中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收终端发送的第一注册请求消息，第一注册请求消息中携带终端的ID；AMF网元向UDM网元发送第一签约数据请求消息，第一签约数据请求消息中携带终端的ID；AMF网元接收UDM网元发送的第一签约数据响应消息，第一签约数据响应消息中携带LAN ID；AMF生成终端的注册区域信息；AMF网元向LSMF网元发送第二请求消息，第二请求消息中携带LAN ID，第二请求消息用于请求获取LAN ID对应的服务区域信息；AMF网元接收LSMF网元发送的第二响应消息，第二响应消息中携带LAN ID对应的服务区域信息；
然后，AMF网元向终端发送终端的LAN信息，其具体实现方式可以是：AMF网元向终端发送第一注册响应消息，第一注册响应消息携带终端的LAN信息。
在方式二中，AMF网元在接收到第一注册请求消息后，触发确定该终端的LAN信息的操作。在终端的注册流程中，AMF网元会动态生成请求进行注册的终端的注册区域信息，因而在方式二中，AMF网元在接收到第一签约数据响应消息后，即可生成该终端的注册区域信息。此外，第一签约数据响应消息中携带LAN ID，即表示UDM网元将请求进行注册的终端加入该 LAN ID所标识的LAN群组中。由于在创建该LAN群组时，LSMF网元已经获取到该LAN群组的LAN ID以及该LAN ID对应的服务区域信息，因而AMF网元可在接收到第一签约数据响应消息后向LSMF网元发送第二请求消息，以获取该LAN ID对应的服务区域信息。至此，AMF网元已获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
可选地，若UDM网元接收到的第二配置参数中还包括该终端的限制信息，第一签约数据响应消息中还可携带该终端的限制信息，以供AMF网元确定该终端的LAN信息时使用。
方式三
对于已经在网络中注册的终端，AMF还可在该终端发起PDU会话管理请求的情况下，触发确定该终端的LAN信息的操作，并通过PDU会话管理响应将该终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息进行局域网通信的管理。
具体地，采用方式三时，S704中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收终端发送的第二PDU会话管理请求，第二PDU会话管理请求中携带LAN ID；AMF网元从终端的上下文中，获取终端的注册区域信息；AMF网元向LSMF网元发送第四请求消息，第四请求消息中携带LAN ID，第四请求消息用于请求获取LAN ID对应的服务区域信息；AMF网元接收LSMF网元发送的第四响应消息，第四响应消息中携带LAN ID对应的服务区域信息；AMF网元获取第二PDU会话管理请求中携带的LAN ID，并根据第二响应消息获取LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息，具体实现方式可以是：AMF网元向终端发送第二PDU会话管理响应，第二PDU会话管理响应携带终端的LAN信息。
其中，第二PDU会话管理请求可以是PDU会话建立请求、PDU会话修改请求或PDU会话释放请求；相应地，第二PDU会话管理响应可以是PDU会话建立响应、PDU会话修改响应或PDU会话释放响应。
在方式三中，AMF网元在接收到第二PDU会话管理请求后，触发确定该终端的LAN信息的操作。方式三中，已注册终端已经与AMF网元建立单独的信令连接，因而AMF网元在该AMF网元与该终端间的专用信道上接收到第二PDU会话管理请求后，即可获知该终端的ID，进而可根据该终端注册时保存的上下文信息确定该终端的注册区域信息。此外，AMF网元可向LSMF网元发送第四请求消息，以请求获取LAN ID对应的服务区域信息。至此，AMF网元已获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
此外，终端向AMF网元发送的第二PDU会话管理请求中携带LAN ID，其具体含义可以是：终端希望与该LAN群组中的终端进行局域网通信，终端可向AMF网元发送第二PDU会话管理请求，AMF网元接收到第二PDU会话管理请求后触发确定该终端的LAN信息的过程。AMF网元对该第二PDU会话管理请求进行响应后，即表示该终端可以与该LAN群组中的终端进行局域网通信。
需要说明的是，AMF网元在接收到第二PDU会话管理请求后，会通过与SMF网元的交互进行PDU会话处理，然后再向终端发送第二PDU会话管理响应。由于PDU会话处理流程为现有技术，因此本申请实施例中不再详细描述。
此外，在方式三中，该终端能否加入第二PDU会话管理请求中携带的LAN ID所标识的LAN群组，还可通过UDM网元鉴权后确定。即，在AMF网元接收终端发送的第二PDU会话管 理请求之后，AMF网元可向UDM网元发送第六签约数据请求消息，第六签约数据请求消息中携带终端的ID以及LAN ID；然后，AMF网元接收UDM网元发送的第六签约数据响应消息。
AMF网元在接收到第六签约数据响应消息之后，即表示该终端可以与该LAN群组中的终端进行局域网通信，此时可触发AMF网元执行确定该终端的LAN信息的操作。
可选地，在方式三中，若UDM网元接收到的第二配置参数中还包括该终端的限制信息，第六签约数据响应消息中还可携带该终端的限制信息，以供AMF网元确定该终端的LAN信息时使用。
需要说明的是，上述三种方式可以针对不同的终端单独使用(即每个终端仅采用上述三种方式中的一种来实现LAN信息确认和接收)，也可针对同一终端使用上述三种方式的任意几种。例如，在某终端发起注册请求时使用方式二确定该终端的LAN信息，在该终端所属的LAN群组更新后，可通过方式一确定该终端更新后的LAN信息。此外，在该终端终端发起PDU会话管理请求时，AMF也可再次确认该终端的LAN信息，并将确认后的LAN信息发送给终端，以便能及时更新该终端的LAN信息。
从上述对实施例A和实施例B的介绍可以看出，实施例A中，无论AMF网元是否需要执行确定终端的LAN信息的步骤，LSMF网元在群组创建或更新后均将第一配置参数发送给该群组服务区域内的所有AMF网元；而在实施例B中，LSMF网元并未向该群组服务区域内的所有AMF网元发送第一配置参数，而是基于AMF网元的请求向AMF网元发送携带LAN ID以及LAN ID对应的服务区域信息的响应消息；由于只有用于为该终端服务的AMF网元会向LSMF网元发送请求消息，因而在实施例B中，LSMF网元的处理负荷小，且不用于为该终端提供服务的AMF网元也不会收到第一配置参数，对于这些AMF网元来说也可达到节省存储空间的效果。
以上是对实施例B的介绍。基于同一发明构思，本申请实施例还提供一种局域网通信的管理方法，该方法可视为图7所示方法的一个具体示例。参见图8，该方法包括如下步骤。
1.1、LSMF网元从NEF网元/AF网元接收群组(Group)创建/更新消息，获取到局域网标识(LANID)、该LAN ID对应的服务区域信息(servicearea)、该局域网群组中的UE ID、UE的限制信息(restrictions1)以及该LANID对应的限制信息(restrictions2)。
1.2、LSMF网元根据LAN ID对应的服务区域信息选择UDM网元。
其中，LSMF网元选择的UDM网元可以为LAN ID对应的服务区域内的所有UDM网元。
2、LSMF网元向选择的UDM网元发送配置参数1(Configure1)，其中携带LAN ID、UE ID和restrictions1。
A：对于群组中已注册的UE，可采用如下方法更新该UE的LAN信息
3A、针对Group中已注册的UE，UDM网元向为UE服务的AMF网元发送签约数据更新通知(notification)，其中携带LAN ID、UE ID和restrictions1。
4A、AMF网元向LSMF网元发送LAN信息获取请求(携带LANID)，LSMF网元向AMF网元发送LAN信息获取响应，携带servicearea和restrictions2。
其中，LAN信息获取请求可以视为前述第一请求消息的一个具体示例，LAN信息获取响应可以视为前述第一响应消息的一个具体示例。
5A、为UE服务的AMF网元根据UE ID确定UE的注册区域信息，根据UE的注册区域信息、service area、LAN ID、restrictions1和restrictions2，确定该UE的LAN信息。
6A、AMF网元通过UE配置更新流程中的UE配置更新指令(UE Configuration Update Command)，把LAN信息配置到UE。
其中，UE配置更新指令可视为第一配置更新消息的一个具体示例。
B：对于群组中未注册的UE，可采用如下方法更新该UE的LAN信息
3B、UE发送注册请求(registration request)消息给AMF网元，其中携带UE ID。
4B、AMF网元发送签约数据请求(携带UE ID)给UDM网元，UDM网元返回签约数据响应消息；如果UE签约了此LAN服务，AMF网元获取的签约数据响应消息中携带UE的签约LAN ID和restrictions1.
5B、AMF网元向LSMF网元发送LAN信息获取请求(携带LAN ID)，LSMF网元向AMF网元发送LAN信息获取响应，携带servicearea和restrictions2。AMF网元根据LAN ID确定LAN ID对应的服务区域信息，根据注册流程中为UE动态生成的注册区域信息，以及LAN ID对应的服务区域信息、LAN ID、restrictions1和restrictions2，确定LAN信息。
其中，LAN信息获取请求可以视为前述第二请求消息的一个具体示例，LAN信息获取响应可以视为前述第二响应消息的一个具体示例。
6B、AMF网元通过注册响应(registration response)消息，把LAN信息配置到UE。
C：在会话流程中配置UE的LAN信息
3C、UE发送非接入层消息(NAS Message)给AMF网元，该NASMessage中携带会话ID(Session ID)、LAN ID和PDU会话管理请求。
其中，PDU会话管理请求可以是会话创建请求、会话修改请求或会话释放请求。
4C、AMF网元发送签约数据请求(携带UE ID和LAN ID)给UDM网元，UDM网元返回签约数据响应消息，其中可携带restrictions1。
5C、AMF网元向LSMF网元发送LAN信息获取请求(携带LAN ID)，LSMF网元向AMF网元发送LAN信息获取响应，携带servicearea和restrictions2。AMF网元根据在本地上下文中查找到的UE的注册区域信息，以及servicearea、LAN ID、restrictions1和restrictions2，确定UE的LAN信息。
此外，AMF网元可按照现有的会话流程，请求SMF网元处理该会话管理请求。
6C、AMF网元发送非接入层消息(NAS Message)给UE，该NASmessage中携带会话ID(Session ID)、LAN信息和PDU会话管理响应，从而把LAN信息配置到UE。
其中，PDU会话管理响应可从SMF网元获取。
7、UE获取LAN信息之后，可以把其中的LAN ID当做LADN DNN，复用LADN类似机制限制UE的LAN会话，从而限制UE使用5GLAN服务。
同样地，AMF网元和SMF网元也可把该LAN ID当做LADN DNN，使用LADN类似机制处理UE的LAN会话。
其中，UE的LAN信息中还可包括restrictions1和restrictions2，作为UE或者网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)处理LAN会话时参考的信息。
实施例C
在实施例C中，LSMF网元将终端的LAN签约信息以及LAN ID对应的服务区域信息作为配置参数发送给UDM网元，UDM网元可直接将这些信息发送给AMF网元，或者基于AMF网元的请求将这些信息发送给AMF网元，以供AMF网元确定该终端的LAN信息使用。
也就是说，在实施例C中，LSMF网元将生成终端的LAN信息所需的所有参数均配置到UDM网元，在终端需要确定该终端的LAN信息时，可以从UDM网元一并获取这些参数。
例如，LSMF网元向UDM网元发送的第二配置参数中除了包括LAN ID以及终端的ID之外， 还可以包括LAN ID对应的服务区域信息。可选地，第二配置参数还可以包括LAN ID对应的限制信息以及终端的限制信息。
结合以上对图4所示的局域网通信的管理方法的介绍，若采用实施例C的方案，则图4所示的局域网通信的管理方法可以如图9所示。图9中，该方法包括如下步骤。
S901：LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，LSMF网元也可以通过S901一并获取。
其中，S901中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式与S401中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式相同(通过群组管理请求获取)，重复之处此处不再赘述。
S902：LSMF网元根据LAN ID对应的服务区域信息选择UDM网元。
具体地，S902中，LSMF网元选择的UDM网元可以是LAN ID对应的服务区域信息指示的服务区域内的所有UDM网元。
也就是说，在难以获知用于对LAN ID所标识群组内的终端进行统一数据管理的网元是哪一个UDM网元的情况下，LSMF网元可将第二配置参数发送给LAN ID对应的服务区域内的所有UDM网元。
S903：LSMF网元向UDM网元发送第二配置参数。
其中，第二配置参数包括LAN ID、LAN ID对应的服务区域信息以及终端的ID。
可选地，第二配置参数还可以包括LAN ID对应的限制信息以及终端的限制信息。
S904：AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，AMF网元在S904中也可获取这些限制信息，以供确定该终端的LAN信息时使用。
S905：AMF网元根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。
S906：AMF网元向终端发送终端的LAN信息。
其中，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
此外，若AMF网元在S904中还获取到终端的限制信息或LAN ID对应的限制信息，终端的LAN信息还可包括这些限制信息，终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)根据LAN信息对终端的LAN通信进行管理时，还需考虑这些限制信息。具体方式可参照前面关于终端的LAN信息的相关描述，此处不再赘述。
S907：终端根据LAN信息对终端的LAN通信进行管理。
在S907中，终端根据LAN信息对终端的LAN通信进行管理的具体方式与S406中终端根据LAN信息对终端的LAN通信进行管理的具体方式相同，重复之处不再赘述。
此外，网络中的其他网元也可根据终端的LAN信息对终端的局域网通信进行管理，其具体实现方式在图4所示方法中也有描述，此处不再赘述。
需要注意的是，在实施例C的步骤S904中，AMF网元可基于与终端的不同的交互流程来获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，并通过不同的交互流程将该终端的LAN信息发送给终端。
下面结合附图说明步骤S904中AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息的三种具体实现方式。
方式一
对于已经在网络中注册的终端，若LSMF网元接收到群组创建请求或群组更新请求，可将终端的签约信息通知到UDM网元，UDM网元会向AMF网元发送签约数据更新通知。AMF网元可在接收到该终端的签约数据更新通知，且该签约数据更新通知中包含该终端的LAN ID(即针对该终端在该LAN群组中的局域网通信的签约数据发生变化)的情况下，触发确定该终端的LAN信息的操作，并通过配置更新消息将终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息对终端的局域网通信进行管理。
具体地，采用方式一时，S904中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收UDM网元发送的第二签约数据更新通知，第二签约数据更新通知包括LAN ID、LAN ID对应的服务区域信息以及终端的ID；AMF根据第二签约数据更新通知中携带的终端的ID获取终端的注册区域信息；AMF网元获取第二签约数据更新通知携带的LAN ID以及LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息，具体可通过如下方式实现：AMF网元向终端发送第二配置更新消息，第二配置更新消息包括终端的LAN信息。
在方式一中，对于已经在网络中注册的终端来说，AMF网元中保存有该终端的上下文，AMF网元在接收到第二签约数据更新通知后，可通过查找上下文获取第二签约数据更新通知中携带的终端的ID所对应的注册区域信息，即该终端的注册区域信息。此外，AMF网元还可获取第二签约数据更新通知中携带的LAN ID以及LAN ID对应的服务区域信息。至此，AMF网元已从UDM网元获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
也就是说，在方式一中，UDM网元在接收到LSMF网元发送的第二配置参数后，确定终端已在网络中注册，则UDM可直接通过第二签约数据更新通知将第二配置参数发送给AMF网元，以便AMF网元可根据第二配置参数确定已注册终端的LAN信息，并将LAN信息发送给终端，使得已注册终端可基于该终端的LAN信息进行局域网通信。
此外，若UDM网元接收到的第二配置参数中还包括LAN ID对应的限制信息或该终端的限制信息，第二签约数据更新通知中还可携带这些限制信息，以便AMF网元确定该终端的LAN信息时使用。
方式二
对于未在网络中注册的终端，AMF网元无法通过配置更新流程将终端的LAN信息发送给终端。AMF网元可在该终端发起注册请求的情况下，触发确定该终端的LAN信息的操作，即向UDM网元请求该终端的签约数据，并根据UDM网元返回的签约数据确定该终端的LAN信息，然后通过注册响应消息将该终端的LAN信息发送给该终端，使得该终端在完成注册流程后即可根据LAN信息进行局域网通信的管理。
具体地，采用方式二时，S904中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收终端发送的第二注册请求消息，第二注册请求消息中携带终端的ID；AMF网元向UDM网元发送第二签约数据请求消息，第二签约数据请求消息中携带终端的ID；AMF网元接收UDM网元发送的第二签约数据响应消息，第二签约数据响应消息中携带LAN ID以及LAN ID对应的服务区域信 息；AMF生成终端的注册区域信息；AMF网元获取第二签约数据响应消息中携带的LAN ID以及LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息，具体实现方式可以是：AMF网元向终端发送第二注册响应消息，第二注册响应消息包括终端的LAN信息。
在方式二中，AMF网元在接收到第二注册请求消息后，触发确定该终端的LAN信息的操作。在终端的注册流程中，AMF网元会动态生成请求进行注册的终端的注册区域信息，因而在方式二中，AMF网元在接收到第二签约数据响应消息后，即可生成该终端的注册区域信息。此外，第二签约数据响应消息中携带LAN ID，即表示UDM网元将请求进行注册的终端加入该LAN ID所标识的LAN群组中。由于在创建该LAN群组时，LSMF网元已经获取到该LAN群组的LAN ID以及该LAN ID对应的服务区域信息并发送给UDM网元，因而UDM网元可通过第二签约数据响应消息将LAN ID对应的服务区域信息发送给AMF网元。至此，AMF网元已获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
可选地，若UDM网元接收到的第二配置参数中还包括LAN ID对应的限制信息和该终端的限制信息，第二签约数据响应消息中还可携带LAN ID对应的限制信息和该终端的限制信息，以便AMF网元确定该终端的LAN信息时使用。
方式三
对于已经在网络中注册的终端，AMF还可在该终端发起PDU会话管理请求的情况下，触发确定该终端的LAN信息的操作，并通过PDU会话管理响应将该终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息进行局域网通信的管理。
具体地，采用方式三时，S904中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收终端发送的第三PDU会话管理请求，第三PDU会话管理请求中携带LAN ID；AMF网元向UDM网元发送第七签约数据请求消息，第七签约数据请求消息中携带终端的ID以及LAN ID；AMF网元接收UDM网元发送的第七签约数据响应消息，第七签约数据响应消息中携带LAN ID对应的服务区域信息；AMF网元从终端的上下文中，获取终端的注册区域信息；AMF网元获取第三PDU会话管理请求中携带的LAN ID，并获取第七签约数据响应消息中携带的LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息，具体可通过如下方式实现：AMF网元向终端发送第三PDU会话管理响应，第三PDU会话管理响应包括终端的LAN信息。
其中，第三PDU会话管理请求可以是PDU会话建立请求、PDU会话修改请求或PDU会话释放请求；相应地，第三PDU会话管理响应可以是PDU会话建立响应、PDU会话修改响应或PDU会话释放响应。
方式三中，AMF网元在接收到第三PDU会话管理请求后，触发确定该终端的LAN信息的操作。其中，已注册终端已经与AMF网元建立单独的信令连接，因而AMF网元在该AMF网元与该终端间的专用信道上接收到第三PDU会话管理请求后，即可获知该终端的ID，进而可根据该终端注册时保存的上下文信息确定该终端的注册区域信息。此外，AMF网元还可获取第三PDU会话管理请求中携带的LAN ID，获取第七签约数据响应消息中携带的LAN ID对应的服务区域信息。至此，AMF网元已获取获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
其中，终端向AMF网元发送的第三PDU会话管理请求中携带LAN ID，其具体含义可以是： 终端希望与该LAN群组中的终端进行局域网通信，终端可向AMF网元发送第三PDU会话管理请求，AMF网元接收到第三PDU会话管理请求后触发确定该终端的LAN信息的过程。AMF网元对该第三PDU会话管理请求进行响应后，即表示该终端可以与该LAN群组中的终端进行局域网通信。
需要说明的是，AMF网元在接收到第三PDU会话管理请求后，会通过与SMF网元的交互进行PDU会话处理，然后再向终端发送第三PDU会话管理响应。由于PDU会话处理流程为现有技术，因此本申请实施例中不再详细描述。
此外，在方式三中，AMF网元向UDM网元发送的第七签约数据请求消息不仅可用于请求获取LAN ID对应的服务区域信息，还可用于对终端进行鉴权。
即，在AMF网元接收终端发送的第三PDU会话管理请求之后，AMF网元可向UDM网元发送第七签约数据请求消息，第七签约数据请求消息中携带终端的ID以及LAN ID；然后，AMF网元接收UDM网元发送的第七签约数据响应消息，其中携带LAN ID对应的服务区域信息。AMF网元在接收到第七签约数据响应消息之后，即表示该终端可以与该LAN群组中的终端进行局域网通信，此时可触发AMF网元执行确定该终端的LAN信息的操作。
可选地，在方式三中，若UDM网元接收到的第二配置参数中还包括LAN ID对应的限制信息或该终端的限制信息，第七签约数据响应消息中还可携带LAN ID对应的限制信息或该终端的限制信息，以便AMF网元确定该终端的LAN信息时使用。
需要说明的是，上述三种方式可以针对不同的终端单独使用(即每个终端仅采用上述三种方式中的一种来实现LAN信息确认和接收)，也可针对同一终端使用上述三种方式的任意几种。例如，在某终端发起注册请求时使用方式二确定该终端的LAN信息，在该终端所属的LAN群组更新后，可通过方式一确定该终端更新后的LAN信息。此外，在该终端终端发起PDU会话管理请求时，AMF也可再次确认该终端的LAN信息，并将确认后的LAN信息发送给终端，以便能及时更新该终端的LAN信息。
从上述关于实施例C的介绍可以看出，与实施例A和实施例B相比，实施例C中，LSMF网元将确定终端的LAN信息所需的参数均发送给UDM网元，由UDM网元选择性地下发给AMF网元，因而采用实施例C提供的方案，会减小AMF网元的负荷、增加UDM网元的负荷。在实际应用中，可以针对不同的场景选择执行实施例A、实施例B或实施例C所提供的方案。
以上是对实施例C的介绍。基于同一发明构思，本申请实施例还提供一种局域网通信的管理方法，该方法可视为图9所示方法的一个具体示例。参见图10，该方法包括如下步骤。
1.1、LSMF网元从NEF网元/AF网元接收群组(Group)创建/更新消息，获取到局域网标识(LAN ID)、该LAN ID对应的服务区域信息(servicearea)、该局域网群组中的UE ID、UE的限制信息(restrictions1)以及该LAN ID对应的限制信息(restrictions2)。
1.2、LSMF网元根据LAN ID对应的服务区域信息选择UDM网元。
其中，LSMF网元选择的UDM网元可以为LAN ID对应的服务区域内的所有UDM网元。
2、LSMF网元向选择的UDM网元发送配置参数1(Configure1)，其中携带LAN ID、UE ID、service area、restrictions1和restrictions2。
A:对于群组中已注册的UE，可采用如下方法更新该UE的LAN信息
3A、针对Group中已注册的UE，UDM网元向为UE服务的AMF网元发送签约数据更新通知(notification)，其中携带LAN ID、UE ID、service area、restrictions1和restrictions2。
4A、为UE服务的AMF网元根据UE ID确定UE的注册区域信息，根据UE的注册区域信息、 service area、LAN ID、restrictions1和restrictions2，确定该UE的LAN信息。
5A、AMF网元通过UE配置更新流程中的UE配置更新指令(UE Configuration Update Command)，把LAN信息配置到UE。
其中，UE配置更新指令可视为第二配置更新消息的一个具体示例。
B：对于群组中未注册的UE，可采用如下方法更新该UE的LAN信息
3B、UE发送注册请求(registration request)消息给AMF网元，其中携带UE ID。
4B、AMF网元发送签约数据请求(携带UE ID)给UDM网元，UDM网元返回签约数据响应消息；如果UE签约了此LAN服务，AMF网元获取的签约数据响应消息中携带UE的签约LAN ID、service area、restrictions1和restrictions2；AMF网元根据注册流程中为UE动态生成的注册区域信息、LAN ID对应的服务区域信息、LAN ID、restrictions1和restrictions2，确定UE的LAN信息。
5B、AMF网元通过注册响应(registration response)消息，把LAN信息配置到UE。
C：在会话流程中配置UE的LAN信息
3C、UE发送非接入层消息(NAS Message)给AMF网元，该NASMessage中携带会话ID(Session ID)、LAN ID和PDU会话管理请求；其中PDU会话管理请求可以是会话创建请求、会话修改请求或会话释放请求。
4C、AMF网元发送签约数据请求(携带UE ID和LAN ID)给UDM网元，UDM网元返回签约数据响应消息，其中可携带service area、restrictions1和restrictions2；AMF网元根据LAN ID、在本地上下文中查找到的UE的注册区域信息、service area、restrictions1和restrictions2，确定LAN信息。
此外，AMF网元可按照现有的会话流程，请求SMF网元处理该会话管理请求。
5C、AMF网元发送非接入层消息(NAS Message)给UE，该NASmessage中携带会话ID(Session ID)、LAN信息和PDU会话管理响应，从而把LAN信息配置到UE。
其中，PDU会话管理响应可从SMF网元获取。
6、UE获取LAN信息之后，可以把其中的LAN ID当做LADN DNN，复用LADN类似机制限制UE的LAN会话，从而限制UE使用5GLAN服务。
同样地，AMF网元和SMF网元也可把该LAN ID当做LADN DNN，使用LADN类似机制处理UE的LAN会话。
其中，UE的LAN信息中还可包括restrictions1和restrictions2，作为UE或者网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)处理LAN会话时参考的信息。
实施例D
在实施例D中，LSMF网元未向UDM网元发送配置参数，而是将终端的LAN签约信息以及LAN ID对应的服务区域信息等信息均保存在本地，然后LSMF网元可直接将这些信息发送给AMF网元，或者基于AMF网元的请求将这些信息发送给AMF网元，以供AMF网元确定该终端的LAN信息使用。
结合以上对图4所示的局域网通信的管理方法的介绍，若采用实施例D的方案，则图4所示的局域网通信的管理方法可以如图11所示。图11中，该方法包括如下步骤。
S1101：LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信 息以及终端的限制信息，LSMF网元也可以通过S1101一并获取。
其中，S1101中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式与S401中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式相同(通过群组管理请求获取)，重复之处此处不再赘述。
S1102：AMF网元获取终端的注册区域信息、终端的LAN ID以及LAN ID对应的服务区域信息。
此外，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，AMF网元在S1102中也可获取这些限制信息，以供确定该终端的LAN信息时使用。
S1103：AMF网元根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。
S1104：AMF网元向终端发送终端的LAN信息。
其中，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
此外，若AMF网元在S1102中还获取到终端的限制信息或LAN ID对应的限制信息，终端的LAN信息还可包括这些限制信息，终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)根据LAN信息对终端的LAN通信进行管理时，还需考虑这些限制信息。具体方式可参照前面关于终端的LAN信息的相关描述，此处不再赘述。
S1105：终端根据LAN信息对终端的LAN通信进行管理。
在S1105中，终端根据LAN信息对终端的LAN通信进行管理的具体方式与S406中终端根据LAN信息对终端的LAN通信进行管理的具体方式相同，重复之处不再赘述。
此外，网络中的其他网元也可根据终端的LAN信息对终端的局域网通信进行管理，其具体实现方式在图4所示方法中也有描述，此处不再赘述。
需要注意的是，在实施例D的步骤S1102中，AMF网元可基于与LSMF网元的不同的交互流程来获取终端的LAN ID以及LAN ID对应的服务区域信息。
例如，对于已经在网络中注册的终端，LSMF网元可直接通过配置更新消息将终端的LAN ID以及LAN ID对应的服务区域信息发送给AMF网元，以供AMF网元确定LAN信息。
例如，对于未在网络中注册的终端，LSMF网元可在该终端发起注册请求的情况下，将终端的LAN ID以及LAN ID对应的服务区域信息发送给AMF网元，以供AMF网元确定LAN信息。
例如，LSMF还可在终端发起PDU会话管理请求的情况下，将终端的LAN ID以及LAN ID对应的服务区域信息发送给AMF网元，以供AMF网元确定LAN信息。
此外，由于终端的注册区域信息由AMF网元生成并保存，因而S1102中AMF网元获取的终端的注册区域信息可来自本地。
下面结合附图说明步骤S1102中AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息的三种具体实现方式。
方式一
对于已经在网络中注册的终端，若LSMF网元接收到群组创建请求或群组更新请求，会向AMF网元发送签约数据更新通知。AMF网元可在接收到该终端的签约数据更新通知，且该签约数据更新通知中包含该终端的LAN ID(即针对该终端在该LAN群组中的局域网通信的签约数据发生变化)的情况下，触发确定该终端的LAN信息的操作，并通过配置更新消息将终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息对终端的 局域网通信进行管理。
具体地，采用方式一时，S1102中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收LSMF网元发送的第二签约数据更新通知，第二签约数据更新通知包括LAN ID、LAN ID对应的服务区域信息以及终端的ID；AMF根据第二签约数据更新通知中携带的终端的ID获取终端的注册区域信息；AMF网元获取第二签约数据更新通知携带的LAN ID以及LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息，具体可通过如下方式实现：AMF网元向终端发送第二配置更新消息，第二配置更新消息包括终端的LAN信息。
在方式一中，对于已经在网络中注册的终端来说，AMF网元中保存有该终端的上下文，AMF网元在接收到第二签约数据更新通知后，可通过查找上下文获取第二签约数据更新通知中携带的终端的ID所对应的注册区域信息，即该终端的注册区域信息。此外，AMF网元还可获取第二签约数据更新通知中携带的LAN ID以及LAN ID对应的服务区域信息。至此，AMF网元已从LSMF网元获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
也就是说，在方式一中，LSMF确定终端已在网络中注册，则LSMF网元可直接通过第二签约数据更新通知将LAN ID、LAN ID对应的服务区域信息以及终端的ID发送给AMF网元，以便AMF网元可根据LAN ID、LAN ID对应的服务区域信息以及终端的ID确定已注册终端的LAN信息，并将LAN信息发送给终端，使得已注册终端可基于该终端的LAN信息进行局域网通信。
此外，AMF网元接收到的第二签约数据更新通知中还可包括LAN ID对应的限制信息或该终端的限制信息。
方式二
AMF网元可在该终端发起注册请求的情况下，触发确定该终端的LAN信息的操作，即向LSMF网元请求LAN ID、LAN ID对应的服务区域信息等信息，并根据LSMF网元返回的信息确定该终端的LAN信息，然后通过注册响应消息将该终端的LAN信息发送给该终端，使得该终端在完成注册流程后即可根据LAN信息进行局域网通信的管理。
具体地，采用方式二时，S1102中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收终端发送的第二注册请求消息，第二注册请求消息中携带终端的ID；AMF网元向LSMF网元发送第二签约数据请求消息，第二签约数据请求消息中携带终端的ID；AMF网元接收LSMF网元发送的第二签约数据响应消息，第二签约数据响应消息中携带LAN ID以及LAN ID对应的服务区域信息；AMF网元生成终端的注册区域信息；AMF网元获取第二签约数据响应消息中携带的LAN ID以及LAN ID对应的服务区域信息。
具体地，在AMF网元向LSMF网元发送LAN信息获取请求之前，AMF网元可接收终端发送的第二注册请求消息，该第二注册请求消息中携带终端的ID。此外，AMF网元可以从该第二注册请求消息获取终端的LAN指示信息或者AMF网元也可以从UDM网元获取终端的LAN签约信息，其中，该LAN指示信息或LAN签约信息用于指示该终端需要使用所述LAN ID指示的LAN服务。
示例性地，LAN指示信息可以为LAN ID。当终端向AMF网元发送的第二注册请求消息中携带该LAN ID时，该LAN ID用于指示该终端需要使用此LAN ID对应的LAN服务。或者LAN 指示信息或LAN签约信息是一个二进制指示，用于指示该终端需要使用所述LAN ID指示的LAN服务。
AMF网元在接收到第二注册请求消息中携带的LAN指示信息或者UDM网元发送的终端的LAN签约信息的情况下，确定该终端需要使用所述LAN ID指示的LAN服务，以使AMF网元向LSMF网元请求获取终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息，具体实现方式可以是：AMF网元向终端发送第二注册响应消息，第二注册响应消息包括终端的LAN信息。
在方式二中，AMF网元在接收到第二注册请求消息后，触发确定该终端的LAN信息的操作。在终端的注册流程中，AMF网元会动态生成请求进行注册的终端的注册区域信息，因而在方式二中，AMF网元在接收到第二签约数据响应消息后，即可生成该终端的注册区域信息。此外，第二签约数据响应消息中携带LAN ID，即表示LSMF网元将请求进行注册的终端加入该LAN ID所标识的LAN群组中。由于在创建该LAN群组时，LSMF网元已经获取到该LAN群组的LAN ID以及该LAN ID对应的服务区域信息，因而LSMF网元可通过第二签约数据响应消息将LAN ID对应的服务区域信息发送给AMF网元。至此，AMF网元已获取到生成LAN信息所需的LAN ID、LAN ID对应的服务区域信息以及终端的注册区域信息。
可选地，AMF网元接收到的第二签约数据响应消息中还包括LAN ID对应的限制信息和该终端的限制信息。
方式三
对于已经在网络中注册的终端，AMF网元还可在该终端发起PDU会话管理请求的情况下，触发确定该终端的LAN信息的操作，并通过PDU会话管理响应将该终端的LAN信息发送给终端，从而使得终端能及时更新LAN信息，并根据最新的LAN信息进行局域网通信的管理。
具体地，采用方式三时，S1102中，AMF网元获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息，可通过如下方式实现：AMF网元接收终端发送的第三PDU会话管理请求，第三PDU会话管理请求中携带LAN ID；AMF网元向LSMF网元发送第七签约数据请求消息，第七签约数据请求消息中携带终端的ID以及LAN ID；AMF网元接收LSMF网元发送的第七签约数据响应消息，第七签约数据响应消息中携带LAN ID对应的服务区域信息；AMF网元从终端的上下文中，获取终端的注册区域信息；AMF网元获取第三PDU会话管理请求中携带的LAN ID，并获取第七签约数据响应消息中携带的LAN ID对应的服务区域信息。
然后，AMF网元向终端发送终端的LAN信息，具体可通过如下方式实现：AMF网元向终端发送第三PDU会话管理响应，第三PDU会话管理响应包括终端的LAN信息。
其中，第三PDU会话管理请求可以是PDU会话建立请求、PDU会话修改请求或PDU会话释放请求；相应地，第三PDU会话管理响应可以是PDU会话建立响应、PDU会话修改响应或PDU会话释放响应。
方式三中，AMF网元在接收到第三PDU会话管理请求后，触发确定该终端的LAN信息的操作。其中，已注册终端已经与AMF网元建立单独的信令连接，因而AMF网元在该AMF网元与该终端间的专用信道上接收到第三PDU会话管理请求后，即可获知该终端的ID，进而可根据该终端注册时保存的上下文信息确定该终端的注册区域信息。此外，AMF网元还可获取第三PDU会话管理请求中携带的LAN ID，获取第七签约数据响应消息中携带的LAN ID对应的服务区域信息。至此，AMF网元已获取获取到生成LAN信息所需的LAN ID、LAN ID对应的服 务区域信息以及终端的注册区域信息。
其中，终端向AMF网元发送的第三PDU会话管理请求中携带LAN ID，其具体含义可以是：终端希望与该LAN群组中的终端进行局域网通信，终端可向AMF网元发送第三PDU会话管理请求，AMF网元接收到第三PDU会话管理请求后触发确定该终端的LAN信息的过程。AMF网元对该第三PDU会话管理请求进行响应后，即表示该终端可以与该LAN群组中的终端进行局域网通信。
需要说明的是，AMF网元在接收到第三PDU会话管理请求后，会通过与SMF网元的交互进行PDU会话处理，然后再向终端发送第三PDU会话管理响应。由于PDU会话处理流程为现有技术，因此本申请实施例中不再详细描述。
此外，在方式三中，AMF网元向LSMF网元发送的第七签约数据请求消息不仅可用于请求获取LAN ID对应的服务区域信息，还可用于对终端进行鉴权。
即，在AMF网元接收终端发送的第三PDU会话管理请求之后，AMF网元可向LSMF网元发送第七签约数据请求消息，第七签约数据请求消息中携带终端的ID以及LAN ID；然后，AMF网元接收LSMF网元发送的第七签约数据响应消息，其中携带LAN ID对应的服务区域信息。AMF网元在接收到第七签约数据响应消息之后，即表示该终端可以与该LAN群组中的终端进行局域网通信，此时可触发AMF网元执行确定该终端的LAN信息的操作。
可选地，在方式三中，AMF网元接收到的第七签约数据响应消息中还可携带LAN ID对应的限制信息或该终端的限制信息，以便AMF网元确定该终端的LAN信息时使用。
需要说明的是，上述三种方式可以针对不同的终端单独使用(即每个终端仅采用上述三种方式中的一种来实现LAN信息确认和接收)，也可针对同一终端使用上述三种方式的任意几种。例如，在某终端发起注册请求时使用方式二确定该终端的LAN信息，在该终端所属的LAN群组更新后，可通过方式一确定该终端更新后的LAN信息。此外，在该终端终端发起PDU会话管理请求时，AMF也可再次确认该终端的LAN信息，并将确认后的LAN信息发送给终端，以便能及时更新该终端的LAN信息。
从上述关于实施例D的介绍可以看出，实施例C与实施例D的不同之处在于，实施例C中，LSMF网元将确定终端的LAN信息所需的信息(第二配置参数)发送给UDM网元，并由UDM网元直接或基于AMF网元的请求进行转发。而在实施例D中，LSMF网元并未向UDM网元发送第二配置参数，而是由LSMF网元直接或基于AMF网元的请求来向AMF网元发送确定终端的LAN信息所需的信息(LAN ID、LAN ID对应的服务区域信息等)。因而采用实施例D提供的方案，可以减小UDM网元的负荷。在实际应用中，可以针对不同的场景选择执行实施例A、实施例B、实施例C或实施例D所提供的方案。
以上是对实施例D的介绍。基于同一发明构思，本申请实施例还提供一种局域网通信的管理方法，该方法可视为图11所示方法的一个具体示例。参见图12，该方法包括如下步骤。
1、LSMF网元从NEF网元/AF网元接收群组(Group)创建/更新消息，获取到局域网标识(LAN ID)、该LAN ID对应的服务区域信息(servicearea)、该局域网群组中的UE ID、UE的限制信息(restrictions1)以及该LAN ID对应的限制信息(restrictions2)。
A:对于群组中已注册的UE，可采用如下方法更新该UE的LAN信息(相当于方式一)
2A、针对Group中已注册的UE，LSMF网元向为UE服务的AMF网元发送签约数据更新通知(notification)，其中携带LAN ID、UE ID、service area、restrictions1和restrictions2。
3A、为UE服务的AMF网元根据UE ID确定UE的注册区域信息，根据UE的注册区域信息、 service area、LAN ID、restrictions1和restrictions2，确定该UE的LAN信息。
4A、AMF网元通过UE配置更新流程中的UE配置更新指令(UE Configuration Update Command)，把LAN信息配置到UE。
其中，UE配置更新指令可视为第二配置更新消息的一个具体示例。
B：对于群组中未注册的UE，可采用如下方法更新该UE的LAN信息(相当于方式二)
2B、UE发送注册请求(registration request)消息给AMF网元，其中携带UE ID。
3B、AMF网元从注册请求消息中获取UE的LAN指示信息或者从UDM网元获取UE的LAN签约信息，触发AMF网元发送签约数据请求(携带UE ID)给LSMF网元，LSMF网元返回签约数据响应消息；如果UE签约了此LAN服务，AMF网元获取的签约数据响应消息中携带UE的签约LAN ID、service area、restrictions1和restrictions2；AMF网元根据注册流程中为UE动态生成的注册区域信息、LAN ID对应的服务区域信息、LAN ID、restrictions1和restrictions2，确定UE的LAN信息。
4B、AMF网元通过注册响应(registration response)消息，把LAN信息配置到UE。
C：在会话流程中配置UE的LAN信息(相当于方式三)
2C、UE发送非接入层消息(NAS Message)给AMF网元，该NASMessage中携带会话ID(Session ID)、LAN ID和PDU会话管理请求；其中PDU会话管理请求可以是会话创建请求、会话修改请求或会话释放请求。
3C、AMF网元发送签约数据请求(携带UE ID和LAN ID)给LSMF网元，LSMF网元返回签约数据响应消息，其中可携带service area、restrictions1和restrictions2；AMF网元根据LAN ID、在本地上下文中查找到的UE的注册区域信息、service area、restrictions1和restrictions2，确定LAN信息。
此外，AMF网元可按照现有的会话流程，请求SMF网元处理该会话管理请求。
4C、AMF网元发送非接入层消息(NAS Message)给UE，该NASmessage中携带会话ID(Session ID)、LAN信息和PDU会话管理响应，从而把LAN信息配置到UE。
其中，PDU会话管理响应可从SMF网元获取。
5、UE获取LAN信息之后，可以把其中的LAN ID当做LADN DNN，复用LADN类似机制限制UE的LAN会话，从而限制UE使用5GLAN服务。
同样地，AMF网元和SMF网元也可把该LAN ID当做LADN DNN，使用LADN类似机制处理UE的LAN会话。
其中，UE的LAN信息中还可包括restrictions1和restrictions2，作为UE或者网络(例如AMF网元、SMF网元、LSMF网元或UDM网元)处理LAN会话时参考的信息。
实施例二
参见图13，本申请实施例提供的一种局域网通信的管理方法包括如下步骤：
S1301：LSMF网元获取终端的注册区域信息、终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。其中，S1301中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式与S401中LSMF网元获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息的具体实现方式相同(通过群组管理请求获取)，重复之处此处不再赘述。
需要说明的是，LSMF网元在S1301中获取的终端的ID为LAN ID所标识LAN群组的群组 成员的ID，该终端与用于向LSMF网元发送群组管理请求的指定终端没有必然联系。LSMF网元在接收到群组管理请求后，可以获取到一个终端列表(UE list)，该列表中包含LAN ID所标识LAN群组中的所有终端的ID，AMF网元后续可在不同场景中确定该终端列表中的某个终端的LAN信息，S401中获取到的终端的ID所指示的终端即为后续需要确定其LAN信息的终端。
应注意，若该LAN ID所标识的LAN群组在创建/更新过程中还配置有LAN ID对应的限制信息以及终端的限制信息，LSMF网元也可以通过S1301一并获取。
此外，由于终端的注册区域信息由AMF网元生成并保存，因而S1301中LSMF网元获取的终端的注册区域信息可来自AMF网元，例如AMF网元通过向LSMF网元发送的LAN信息获取请求中可携带该终端的注册区域信息，相关内容将在后面关于LAN信息获取请求的描述中进行介绍，此处不再赘述。
S1302：LSMF网元根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。
具体地，触发LSMF网元确定终端的LAN信息的条件可以是AMF网元向LSMF网元发送LAN信息获取请求，以请求获取该终端的LAN信息。也就是说，在LSMF网元根据终端的注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息之前，LSMF网元可接收AMF网元发送的LAN信息获取请求，该LAN信息获取请求用于请求获取终端的LAN信息，LAN信息获取请求中携带LAN ID、终端的ID以及终端的注册区域信息。LSMF网元向AMF网元发送终端的LAN信息，其具体实现方式可以是：LSMF网元向AMF网元发送LAN信息获取响应，LAN信息获取响应中携带终端的LAN信息。
这里，需要注意的是，由于终端的注册区域信息由AMF网元生成并保存，而LSMF网元确定终端的LAN信息时需要根据终端的注册区域信息确定，因此，AMF网元向LSMF网元发送的LAN信息获取请求中，需携带终端的注册区域信息。
其中，触发AMF网元向LSMF网元发送LAN信息获取请求的条件有多个。下面举例说明触发AMF网元向LSMF网元发送LAN信息获取请求的三种情形。
情形一
LSMF网元向AMF网元发送签约数据更新通知，且该签约数据更新通知中包含已注册终端的LAN ID(即针对该终端在该LAN群组中的局域网通信的签约数据发生变化)，那么，AMF网元需要更新该终端的LAN信息，此时AMF网元可向LSMF网元发送LAN信息获取请求，以请求获取该终端的LAN信息。
具体地，在AMF网元向LSMF网元发送LAN信息获取请求之前，AMF网元可接收LSMF网元发送的签约数据更新通知，签约数据更新通知包括LAN ID以及终端的ID；AMF网元确定终端已在LAN ID对应的群组中注册。然后，AMF网元向终端发送配置更新消息，配置更新消息中携带终端的LAN信息。
在情形一中，终端的签约数据发生更新后，LSMF网元会通过签约数据更新通知来通知AMF网元，此时AMF网元向LSMF网元请求获取该终端的LAN信息，可以及时更新该终端的LAN信息，使得终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)可根据更新后的LAN信息对终端的局域网通信进行管理。
情形二
AMF网元接收到未注册终端发送的注册请求消息，此时AMF网元可向LSMF网元发送LAN 信息获取请求，以请求获取该终端的LAN信息，从而使得终端在完成注册流程后可根据LAN信息进行局域网通信的管理。
具体地，在AMF网元向LSMF网元发送LAN信息获取请求之前，AMF网元可接收终端发送的注册请求消息，该注册请求消息中还携带终端的ID。AMF网元可以从注册请求消息获取终端的LAN指示信息或者AMF网元也可以从UDM网元获取终端的LAN签约信息，其中，该LAN指示信息或LAN签约信息用于指示该终端需要使用所述LAN ID指示的LAN服务。
示例性地，LAN指示信息可以为LAN ID。当终端向AMF网元发送的注册请求消息中携带该LAN ID时，该LAN ID用于指示该终端需要使用此LAN ID对应的LAN服务。LAN指示信息或LAN签约信息是一个二进制指示，用于指示该终端需要使用所述LAN ID指示的LAN服务。
AMF网元在接收到注册请求消息中携带的LAN指示信息或者UDM发送的终端的LAN签约信息的情况下，确定该终端需要使用所述LAN ID指示的LAN服务。AMF网元可向LSMF网元发送LAN信息获取请求，以获取该终端的LAN信息，从而使得该终端的注册流程完成后，终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)即可根据LAN信息对该终端进行局域网通信的管理。
情形三
对于已经在网络中注册的终端，AMF还可在该终端发起PDU会话管理请求的情况下向LSMF网元发送LAN信息获取请求，以请求获取该终端的LAN信息，并通过PDU会话管理响应将该终端的LAN信息发送给终端，从而使得终端能及时更新LAN信。进而根据最新的LAN信息进行局域网通信的管理。
具体地，在AMF网元向LSMF网元发送LAN信息获取请求之前，AMF网元可接收终端发送的PDU会话管理请求，PDU会话管理请求中携带LAN ID；AMF网元根据PDU会话管理请求确定终端的ID。然后，AMF网元向终端发送PDU会话管理响应消息，PDU会话管理响应消息中携带终端的LAN信息。
其中，PDU会话管理请求可以是PDU会话建立请求、PDU会话修改请求或PDU会话释放请求；相应地，PDU会话管理响应可以是PDU会话建立响应、PDU会话修改响应或PDU会话释放响应。
在情形三中，终端发起PDU会话管理请求后，AMF网元向LSMF网元请求获取该终端的LAN信息，从而及时更新该终端的LAN信息，使得终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)可根据更新后的LAN信息对终端的局域网通信进行管理。
S1303：LSMF网元向AMF网元发送终端的LAN信息。
其中，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
具体地，终端的LAN通信区域信息可视为终端的注册区域信息与LAN ID对应的服务区域信息的交集。即，终端的LAN通信区域可视为终端的注册区域与LAN ID对应的服务区域的交叉区域。如果终端的限制信息中包括允许通信区域信息，则终端的LAN通信区域信息可视为LAN ID对应的服务区域信息，终端的注册区域信息和终端的允许通信区域信息三者的交集。即，终端的LAN通信区域可视为终端的注册区域，LAN ID对应的服务区域，终端的允许通信区域三者之间的交叉区域。
此外，若LSMF网元在S1301中还获取到LAN ID对应的限制信息和终端的限制信息，则终端的LAN信息中还可包括LAN ID对应的限制信息和终端的限制信息，终端或网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)根据LAN信息对终端的LAN通信进行管理时， 还需考虑这些限制信息。具体方式可参照前面关于终端的LAN信息的相关描述，此处不再赘述。
S1304：AMF网元将终端的LAN信息发送给终端。
S1305：终端根据LAN信息对终端的LAN通信进行管理。
具体地，S1305中，终端根据终端的LAN信息对终端的局域网通信进行管理的方式与S406中终端根据终端的LAN信息对终端的局域网通信进行管理的方式相同，相关描述可参照前述实施例一，此处不再赘述。
从上述关于实施例二的介绍可以看出，与实施例一相比，实施例二中，LSMF网元并未将确定终端的LAN信息所需参数发送给UDM网元或AMF网元，在AMF网元在需要确定终端的LAN信息时，AMF网元将携带LAN ID、终端的ID和终端的注册区域信息这些参数的LAN信息获取请求发送给LSMF网元，由LSMF网元确定终端的LAN信息并发送给AMF网元。不难看出，采用实施例二提供的方案，会减小AMF网元和UDM网元的负荷、同时增加LSMF网元的负荷。在实际应用中，可以针对不同的场景选择执行实施例一或实施例二所提供的方案。
以上是对实施例二的介绍。基于同一发明构思，本申请实施例还提供一种局域网通信的管理方法，该方法可视为图13所示方法的一个具体示例。参见图14，该方法包括如下步骤。
1.1、LSMF网元从NEF网元/AF网元接收群组(Group)创建/更新消息，获取到局域网标识(LAN ID)、该LAN ID对应的服务区域信息(service area)、该局域网群组中的UE ID、UE的限制信息(restrictions1)以及该LAN ID对应的限制信息(restrictions2)。
1.2、LSMF网元创建/更新group的服务区域信息，并根据LAN ID对应的服务区域信息选择AMF网元。
其中，LSMF网元选择的AMF网元可以为LAN ID对应的服务区域内的所有AMF网元。
2、LSMF网元向选择的AMF网元发送配置参数2(Configure2)，其中携带LAN ID、UE ID。
A：对于群组中已注册的UE，可采用如下方法更新该UE的LAN信息(相当于情形一)
3A、AMF网元确定该UE已注册。
4A、AMF网元向LSMF网元发送LAN信息获取请求，以请求获取该UE的LAN信息，其中携带该UE的LAN ID、UE ID以及该UE的注册区域信息。LSMF网元根据LAN ID确定LAN ID对应的服务区域信息，然后根据UE的注册区域信息、LAN ID对应的服务区域信息、LAN ID、restrictions1和restrictions2，确定UE的LAN信息。然后，LSMF网元通过LAN信息获取响应消息将UE的LAN信息发送给AMF。
5A、AMF网元通过UE配置更新流程中的UE配置更新指令(UE Configuration Update Command)，把LAN信息配置到UE。
其中，UE配置更新指令可视为图13所示方法中的配置更新消息的一个具体示例。
B：对于群组中未注册的UE，可采用如下方法更新该UE的LAN信息(相当于情形二)
3B、UE发送注册请求(registration request)消息给AMF网元，其中携带UE ID和LAN指示信息。
4B、AMF网元根据LAN指示信息选择LSMF网元，并向选择的LSMF网元发送LAN信息获取请求，以请求获取该UE的LAN信息，其中携带该UE的LAN ID、UE ID以及该UE的注册区域信息。LSMF网元根据LAN ID确定LAN ID对应的服务区域信息，然后根据UE的注册区域信息、LAN ID对应的服务区域信息、LAN ID、restrictions1和restrictions2，确定UE的 LAN信息。然后，LSMF网元通过LAN信息获取响应消息将UE的LAN信息发送给AMF网元。
5B、AMF网元通过注册响应(registration response)消息，把UE的LAN信息配置到UE。
C：在会话流程中配置UE的LAN信息(相当于情形三)
3C、UE发送非接入层消息(NAS Message)给AMF网元，该NASMessage中携带会话ID(Session ID)、LAN ID和PDU会话管理请求；其中PDU会话管理请求可以是信令创建请求、会话修改请求或会话释放请求。
4C、AMF网元向LSMF网元发送LAN信息获取请求，以请求获取该UE的LAN信息，其中携带该UE的LAN ID、UE ID以及该UE的注册区域信息。LSMF网元根据LAN ID确定LAN ID对应的服务区域信息，然后根据UE的注册区域信息、LAN ID对应的服务区域信息、LAN ID、restrictions1和restrictions2，确定UE的LAN信息。然后，LSMF网元通过LAN信息获取响应消息将UE的LAN信息发送给AMF。
5C、AMF网元向SMF网元发送SMContext管理请求(携带Session ID,LAN Information,PDU会话管理请求)消息。SMContext管理请求可以是SMContext创建请求、SMContext更新请求或SMContext释放请求；SMF网元处理LAN会话；SMF网元向AMF网元发送SMContext管理响应(携带Session ID,PDU会话管理响应(携带LAN信息))消息；SMContext管理响应可以是SMContext创建响应、SMContext更新响应或SMContext释放响应。AMF网元发送非接入层消息(NAS message)给UE，该NASmessage中携带会话ID(Session ID)、PDU会话管理响应(携带LAN信息)，从而把UE的LAN信息配置到UE。
6、UE获取UE的LAN信息之后，可以把其中的LAN ID当做LADN DNN，复用LADN类似机制限制UE的LAN会话，从而限制UE使用5GLAN服务。
同样地，AMF网元和SMF网元也可把该LAN ID当做LADN DNN，使用LADN类似机制处理UE的LAN会话。
其中，UE的LAN信息中还可包括restrictions1和restrictions2，作为UE或者网络(例如AMF网元、SMF网元、UDM网元或LSMF网元)处理LAN会话时参考的信息。
基于同一发明构思，本申请实施例还提供一种局域网通信的管理装置。该装置可同于执行图4所示方法中AMF网元所执行的操作，相关特征可参见上述方法实施例，此处不再赘述。参见图15，该装置1500包括：处理单元1501和发送单元1502。
处理单元1501，用于获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
处理单元1501，还用于根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。
发送单元1502，用于向终端发送终端的LAN信息，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
此外，装置1500，还包括接收单元，用于在处理单元1501获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息之前，接收LSMF网元发送的第一配置参数，第一配置参数包括LAN ID以及LAN ID对应的服务区域信息。
具体地，在接收到LSMF网元发送的第一配置参数后，处理单元1501在获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体方式可以有两种。
方式一
处理单元1501通过接收单元接收UDM网元发送的第四签约数据更新通知，第四签约数据更新通知包括LAN ID以及终端的ID；处理单元1501根据终端的ID获取终端的注册区域信息；处理单元1501获取第四签约数据更新通知中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息。
在方式一中，发送单元1502在向终端发送终端的LAN信息时，具体用于：发送单元1502向终端发送第三配置更新消息，第三配置更新消息包括终端的LAN信息。
方式二
处理单元1501通过接收单元接收终端发送的第三注册请求消息，第三注册请求消息中携带终端的ID；处理单元1501通过发送单元1502向UDM网元发送第四签约数据请求消息，第四签约数据请求消息中携带终端的ID；处理单元1501通过接收单元接收UDM网元发送的第四签约数据响应消息，第四签约数据响应消息中携带LAN ID；处理单元1501生成终端的注册区域信息；处理单元1501获取第四签约数据响应消息中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息。
在方式二中，发送单元1502在向终端发送终端的LAN信息时，具体用于：发送单元1502向终端发送第三注册响应消息，第三注册响应消息携带终端的LAN信息。
方式三
处理单元1501通过接收单元接收终端发送的第一PDU会话管理请求，第一PDU会话管理请求中携带LAN ID；处理单元1501从终端的上下文中，获取终端的注册区域信息；处理单元1501获取第一PDU会话管理请求中携带的LAN ID，并根据第一配置参数获取LAN ID对应的服务区域信息。
在方式三中，发送单元1502在向终端发送终端的LAN信息时，具体用于：发送单元1502向终端发送第一PDU会话管理响应，第一PDU会话管理响应携带终端的LAN信息。
此外，在LSMF网元未向AMF网元发送第一配置参数的情况下，处理单元1501获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息的方式有多种。下面列举其中六种。
第一种
处理单元1501在获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体用于：处理单元1501通过接收单元接收UDM网元发送的第一签约数据更新通知，第一签约数据更新通知包括LAN ID以及终端的ID；处理单元1501根据终端的ID获取终端的注册区域信息；处理单元1501通过发送单元1502向LSMF网元发送第一请求消息，第一请求消息中携带LAN ID，第一请求消息用于请求获取LAN ID对应的服务区域信息；处理单元1501通过接收单元接收LSMF网元发送的第一响应消息，第一响应消息中携带LAN ID对应的服务区域信息。
在第一种方式中，发送单元1502在向终端发送终端的LAN信息时，具体用于：发送单元1502向终端发送第一配置更新消息，第一配置更新消息包括终端的LAN信息。
第二种
处理单元1501在获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体用于：处理单元1501通过接收单元接收终端发送的第一注册请求消息，第一注册请求消息中携带终端的ID；处理单元1501通过发送单元1502向UDM网元发送 第一签约数据请求消息，第一签约数据请求消息中携带终端的ID；处理单元1501通过接收单元接收UDM网元发送的第一签约数据响应消息，第一签约数据响应消息中携带LAN ID；处理单元1501生成终端的注册区域信息；处理单元1501通过发送单元1502向LSMF网元发送第二请求消息，第二请求消息中携带LAN ID，第二请求消息用于请求获取LAN ID对应的服务区域信息；处理单元1501通过接收单元接收接收LSMF网元发送的第二响应消息，第二响应消息中携带LAN ID对应的服务区域信息；
在第二种方式中，发送单元1502在向终端发送终端的LAN信息时，具体用于：发送单元1502向终端发送第一注册响应消息，第一注册响应消息携带终端的LAN信息。
第三种
处理单元1501在获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体用于：处理单元1501通过接收单元接收终端发送的第二PDU会话管理请求，第二PDU会话管理请求中携带LAN ID；处理单元1501从终端的上下文中，获取终端的注册区域信息；处理单元1501通过发送单元1502向LSMF网元发送第四请求消息，第四请求消息中携带LAN ID，第四请求消息用于请求获取LAN ID对应的服务区域信息；处理单元1501通过接收单元接收LSMF网元发送的第四响应消息，第四响应消息中携带LAN ID对应的服务区域信息；处理单元1501获取第二PDU会话管理请求中携带的LAN ID，并根据第四响应消息获取LAN ID对应的服务区域信息。
在第三种方式中，发送单元1502在向终端发送终端的LAN信息时，具体用于：
发送单元1502向终端发送第二PDU会话管理响应，第二PDU会话管理响应携带终端的LAN信息。
第四种
处理单元1501在获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体用于：处理单元1501通过接收单元接收UDM网元或者LSMF网元发送的第二签约数据更新通知，第二签约数据更新通知包括LAN ID、LAN ID对应的服务区域信息以及终端的ID；处理单元1501根据第二签约数据更新通知中携带的终端的ID获取终端的注册区域信息；处理单元1501获取第二签约数据更新通知携带的LAN ID以及LAN ID对应的服务区域信息。
在第四种方式中，发送单元1502在向终端发送终端的LAN信息时，具体用于：发送单元1502向终端发送第二配置更新消息，第二配置更新消息包括终端的LAN信息。
第五种
处理单元1501在获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体用于：处理单元1501通过接收单元接收终端发送的第二注册请求消息，第二注册请求消息中携带终端的ID；处理单元1501通过发送单元1502向UDM网元或者LSMF网元发送第二签约数据请求消息，第二签约数据请求消息中携带终端的ID；处理单元1501通过接收单元接收UDM网元或者LSMF网元发送的第二签约数据响应消息，第二签约数据响应消息中携带LAN ID以及LAN ID对应的服务区域信息；处理单元1501生成终端的注册区域信息；处理单元1501获取第二签约数据响应消息中携带的LAN ID以及LAN ID对应的服务区域信息。
在第五种方式中，发送单元1502在向终端发送终端的LAN信息时，具体用于：发送单元1502向终端发送第二注册响应消息，第二注册响应消息包括终端的LAN信息。
此外，在第五种方式中，处理单元1501还用于：在通过发送单元1502向LSMF网元发送第二签约数据请求消息之前，获取终端的LAN指示信息或者终端的LAN签约信息；其中，LAN指示信息携带在第二注册请求消息中，LAN签约信息为AMF网元从UDM网元获取；LAN指示信息或者LAN签约信息用于指示终端需要使用所述LAN ID指示的LAN服务。
第六种
处理单元1501在获取终端的注册区域信息、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体用于：处理单元1501通过接收单元接收终端发送的第三PDU会话管理请求，第三PDU会话管理请求中携带LAN ID；处理单元1501通过发送单元1502向UDM网元或者LSMF网元发送第七签约数据请求消息，第七签约数据请求消息中携带终端的ID以及LAN ID；处理单元1501通过接收单元接收UDM网元或者LSMF网元发送的第七签约数据响应消息，第七签约数据响应消息中携带LAN ID对应的服务区域信息；处理单元1501从终端的上下文中，获取终端的注册区域信息；处理单元1501获取第三PDU会话管理请求中携带的LAN ID，并获取第七签约数据响应消息中携带的LAN ID对应的服务区域信息。
在第六种方式中，发送单元1502在向终端发送终端的LAN信息时，具体用于：发送单元1502向终端发送第三PDU会话管理响应，第三PDU会话管理响应包括终端的LAN信息。
在一种可能的设计中，装置1500还包括：接收单元，用于在发送单元1502向终端发送终端的LAN信息之后，接收终端发送的第一LAN通信请求，第一LAN通信请求中携带LAN ID；处理单元1501还用于：根据LAN ID以及终端的ID确定终端的LAN信息；发送单元1502还用于：在终端的位置不在LAN通信区域内的情况下，上报SMF网元，使得SMF网元对第一LAN通信请求进行处理。
基于同一发明构思，本申请实施例还提供一种局域网通信的管理装置。该装置可同于执行图4所示方法中LSMF网元所执行的操作，相关特征可参见上述方法实施例，此处不再赘述。参见图16，该装置1600包括：接收单元1601和处理单元1602。
接收单元1601，用于接收通信设备发送的群组管理请求。
处理单元1602，用于根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息。
可选地，处理单元1602还用于：在根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，根据LAN ID对应的服务区域信息选择UDM网元；装置1600还包括：发送单元，用于向UDM网元发送第二配置参数，第二配置参数包括LAN ID以及终端的ID。
可选地，处理单元1602还用于：在处理单元1602获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，根据LAN ID对应的服务区域信息选择AMF网元；装置1600还包括：发送单元，用于向AMF网元发送第一配置参数，第一配置参数包括LAN ID以及LAN ID对应的服务区域信息。
可选地，接收单元1601还用于：在发送单元向UDM网元发送第二配置参数之后，接收AMF网元发送的第三请求消息，第三请求消息中携带LAN ID，第三请求消息用于请求获取LAN ID对应的服务区域信息；发送单元还用于：向AMF网元发送第三响应消息，第三响应消息中携带LAN ID对应的服务区域信息。
此外，第二配置参数还包括LAN ID对应的服务区域信息。
在装置1600中，接收单元1601还用于：在处理单元1602根据群组管理请求，获取终端 的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，接收AMF网元发送的第三签约数据请求消息，第三签约数据请求消息中携带终端的ID，第三签约数据请求消息用于请求获取终端的LAN ID以及LAN ID对应的服务区域信息；装置1600还包括：发送单元，用于向AMF网元发送第三签约数据响应消息，第三签约数据响应消息中携带LAN ID以及LAN ID对应的服务区域信息。
其中，第三签约数据请求消息可以是前述实施例中的第二签约数据请求消息或第七签约数据请求消息；第三签约数据响应消息可以是前述实施例中的第二签约数据响应消息或第七签约数据响应消息。
可选地，装置1600还包括：发送单元，用于在处理单元1602根据群组管理请求，获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息之后，向AMF网元发送第二签约数据更新通知，第二签约数据更新通知包括LAN ID、LAN ID对应的服务区域信息以及终端的ID。
在装置1600中，处理单元1602根据群组管理请求获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息有多种，下面列举其中两种。
第一种
群组管理请求为群组创建请求，群组创建请求用于请求创建进行LAN通信的群组，群组创建请求中携带群组对应的服务区域信息以及终端的ID。
处理单元1602在根据群组管理请求获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息时，具体包括：处理单元1602为群组分配LAN ID；处理单元1602确定LAN ID对应的服务区域为群组对应的服务区域。
第二种
群组管理请求为第一群组更新请求，第一群组更新请求用于请求更新LAN ID对应的群组，第一群组更新请求中携带LAN ID以及LAN ID对应的服务区域信息；处理单元1602在根据群组管理请求获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息时，具体包括：处理单元1602根据LAN ID确定终端的ID。或者，
群组管理请求为第二群组更新请求，第二群组更新请求用于请求更新LAN ID对应的群组，第二群组更新请求中携带终端的ID、终端的LAN ID；处理单元1602在根据群组管理请求获取终端的ID、终端的LAN ID以及LAN ID对应的服务区域信息时，具体包括：处理单元1602根据LAN ID确定LAN ID对应的服务区域信息。
可选地，通信设备为以下任一种：AF网元；OAM实体；指定终端。
基于同一发明构思，本申请实施例还提供一种局域网通信的管理装置。该装置可同于执行图4所示方法中UDM网元所执行的操作，相关特征可参见上述方法实施例，此处不再赘述。参见图17，该装置1700包括：接收单元1701。
接收单元，用于接收LSMF网元发送的第二配置参数，第二配置参数包括终端的LAN ID以及终端的ID。
此外，第二配置参数还可包括LAN ID对应的服务区域信息。
可选地，装置1700还包括：发送单元，用于在接收单元接收LSMF网元发送的第二配置参数之后，向AMF网元发送第三签约数据更新通知，第三签约数据更新通知携带第二配置参数。
其中，其该第三签约数据更新通知可以是前述实施例中第四签约数据更新通知、第一签 约数据更新通知或第二签约数据更新通知中的任一种。
可选地，接收单元还用于：在接收LSMF网元发送的第二配置参数之后，接收AMF网元发送的第七签约数据请求消息，第三签约数据请求消息中携带终端的ID；装置1700还包括：发送单元，用于向AMF网元发送第三签约数据响应消息，第三签约数据响应消息中携带LAN ID。
其中，第三签约数据请求消息可以是前述第四签约数据请求消息、第五签约数据请求消息或第一签约数据请求消息中的任一种；第三签约数据响应消息可以是前述第四签约数据响应消息、第五签约数据响应消息或第一签约数据响应消息中的任一种。
此外，第三签约数据响应消息还携带LAN ID对应的服务区域信息。
在这种情况下，该第三签约数据请求消息可以是前述第一签约数据请求消息。
可选地，接收单元1701还用于：在接收LSMF网元发送的第二配置参数之后，接收AMF网元发送的第八签约数据请求消息，第八签约数据请求消息中携带终端的ID以及LAN ID；装置1700还包括：发送单元，用于向AMF网元发送第八签约数据响应消息。
其中，第八签约数据请求消息可视为前述第五签约数据请求消息、第六签约数据请求消息和第七签约数据请求消息中的任一种；第八签约数据响应消息可视为前述第五签约数据响应消息、第六签约数据响应消息和第七签约数据响应消息中的任一种。
此外，第八签约数据响应消息还可携带LAN ID对应的服务区域信息。
在这种情况下，第八签约数据请求消息可视为前述第七签约数据请求消息；第八签约数据响应消息可视为前述第七签约数据响应消息。
基于同一发明构思，本申请实施例还提供一种局域网通信的管理装置。该装置可同于执行图4所示方法中终端所执行的操作，相关特征可参见上述方法实施例，此处不再赘述。参见图18，该装置1800包括：接收单元1801和处理单元1802。
接收单元1801，用于接收AMF网元发送的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息；
处理单元1802，用于根据LAN信息对终端的LAN通信进行管理。
可选地，处理单元1802在根据LAN信息对终端的局域网通信进行管理时，具体用于：在终端的位置不在LAN通信区域内的情况下，禁止终端发起第二LAN通信请求。
可选地，接收单元1801在接收AMF网元发送的LAN信息时，具体用于：接收AMF网元发送的第一消息，第一消息中携带终端的LAN信息，第一消息为配置更新消息、注册响应消息以及PDU会话管理响应消息中的任一种消息。
基于同一发明构思，本申请实施例还提供一种局域网通信的管理装置。该装置可同于执行图13所示方法中LSMF网元所执行的操作，相关特征可参见上述方法实施例，此处不再赘述。参见图19，该装置1900包括：处理单元1901和发送单元1902。
处理单元1901，用于获取终端的注册区域信息、终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息。
处理单元1901，还用于根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息。
发送单元1902，用于向AMF网元发送终端的LAN信息，终端的LAN信息包括LAN ID以及终端的LAN通信区域信息。
在装置1900中，处理单元1901获取终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息的方式可以有如下两种。
方式一
处理单元1901在获取终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体用于：处理单元1901通过接收单元接收通信设备发送的群组创建请求，群组创建请求用于请求创建进行局域网通信的群组，群组创建请求中携带群组对应的服务区域信息以及终端的ID；处理单元1901为群组分配LAN ID；处理单元1901确定LAN ID对应的服务区域为群组对应的服务区域。
方式二
处理单元1901在获取终端的ID、终端的局域网标识LAN ID以及LAN ID对应的服务区域信息时，具体用于：处理单元1901通过接收单元接收通信设备发送的第一群组更新请求，第一群组更新请求用于请求更新LAN ID对应的群组，第一群组更新请求中携带LAN ID以及LAN ID对应的服务区域信息；处理单元1901根据LAN ID确定终端的ID；或者，处理单元1901通过接收单元接收通信设备发送的第二群组更新请求，第二群组更新请求用于请求更新LAN ID对应的群组，第二群组更新请求中携带终端的ID、终端的LAN ID；处理单元1901根据LAN ID确定LAN ID对应的服务区域信息。
此外，装置1900还包括：接收单元，用于在处理单元1901根据注册区域信息以及LAN ID对应的服务区域信息，确定终端的LAN通信区域信息之前，接收AMF网元发送的LAN信息获取请求，LAN信息获取请求用于请求获取终端的LAN信息，LAN信息获取请求中携带LAN ID、终端的ID以及终端的注册区域信息；发送单元1902在向AMF网元发送终端的LAN信息时，具体用于：发送单元1902向AMF网元发送LAN信息获取响应，LAN信息获取响应中携带终端的LAN信息。
其中，通信设备为以下任一种：AF网元；OAM实体；指定终端。
基于同一发明构思，本申请实施例还提供一种局域网通信的管理装置。该装置可同于执行图13所示方法中AMF网元所执行的操作，相关特征可参见上述方法实施例，此处不再赘述。参见图20，该装置2000包括：接收单元2001和发送单元2002。
接收单元2001，用于接收LSMF网元发送的终端的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息；
发送单元2002，用于将终端的LAN信息发送给终端。
可选地，发送单元2002还用于：在接收单元2001接收LSMF网元发送的终端的LAN信息之前，向LSMF网元发送LAN信息获取请求，LAN信息获取请求用于请求获取终端的LAN信息，LAN信息获取请求中携带LAN ID、终端的ID以及终端的注册区域信息；接收单元2001在接收LSMF网元发送的终端的LAN信息时，具体用于：接收单元2001接收LSMF网元发送的LAN信息获取响应，LAN信息获取响应中携带终端的LAN信息。
在图20所示的装置2000中，可基于不同的场景触发装置200请求获取终端的LAN信息的操作，下面列举其中三种情形。
情形一
接收单元2001还用于：在发送单元2002向LSMF网元发送LAN信息获取请求之前，接收LSMF网元发送的签约数据更新通知，签约数据更新通知包括LAN ID以及终端的ID；装置2000还包括：处理单元，用于确定终端已在LAN ID对应的群组中注册；发送单元2002在将终端的LAN信息发送给终端时，具体用于：发送单元2002向终端发送配置更新消息，配置更新消息中携带终端的LAN信息。
情形二
接收单元2001还用于：在发送单元2002向LSMF网元发送LAN信息获取请求之前，接收终端发送的注册请求消息，注册请求消息中携带终端的LAN指示信息或终端的LAN签约信息，注册请求消息中还携带终端的ID，LAN指示信息或LAN签约信息用于指示终端需要使用所述LAN ID指示的LAN服务；发送单元2002在将终端的LAN信息发送给终端时，具体用于：发送单元2002向终端发送注册响应消息，注册响应消息中携带终端的LAN信息。
情形三
接收单元2001还用于：在发送单元2002向LSMF网元发送LAN信息获取请求之前，接收终端发送的PDU会话管理请求，PDU会话管理请求中携带LAN ID；装置2000还包括：处理单元，用于根据PDU会话管理请求确定终端的ID；发送单元2002在将终端的LAN信息发送给终端时，具体用于：发送单元2002向终端发送PDU会话管理响应消息，PDU会话管理响应消息中携带终端的LAN信息。
此外，接收单元2001还用于：在发送单元2002向终端发送终端的LAN信息之后，接收终端发送的第一LAN通信请求，第一LAN通信请求中携带LAN ID；装置2000还包括：处理单元，用于根据LAN ID以及终端的ID确定终端的LAN信息；发送单元2002还用于：在终端的位置不在LAN通信区域内的情况下，上报SMF网元，使得SMF网元对第一LAN通信请求进行处理。
基于同一发明构思，本申请实施例还提供一种局域网通信的管理装置。该装置可同于执行图13所示方法中终端所执行的操作，相关特征可参见上述方法实施例，此处不再赘述。参见图21，该装置2100包括：接收单元2101和处理单元2102。
接收单元2101，用于接收AMF网元发送的LAN信息，终端的LAN信息包括终端的LAN ID以及终端的LAN通信区域信息.
处理单元2102，用于根据LAN信息对终端的LAN通信进行管理。
可选地，处理单元2102在根据LAN信息对终端的局域网通信进行管理时，具体用于：在终端的位置不在LAN通信区域内的情况下，禁止终端发起第二LAN通信请求。
可选地，接收单元2101在接收AMF网元发送的LAN信息时，具体用于：接收AMF网元发送的第一消息，第一消息中携带终端的LAN信息，第一消息为配置更新消息、注册响应消息以及PDU会话管理响应消息中的任一种消息。
在本申请实施例中，AMF网元、LSMF网元或UDM网元均可以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。
需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。在本申请的实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例方法的全部 或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在一个简单的实施例中，本领域的技术人员可以想到上述实施例中的AMF网元、LSMF网元或UDM网元均可采用图22所示的形式。
如图22所示的局域网通信的管理装置2200，包括至少一个处理器2201、存储器2202，可选的，还可以包括通信接口2203。
存储器2202可以是易失性存储器，例如随机存取存储器；存储器也可以是非易失性存储器，例如只读存储器，快闪存储器，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)、或者存储器2202是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器2202可以是上述存储器的组合。
本申请实施例中不限定上述处理器2201以及存储器2202之间的具体连接介质。本申请实施例在图中以存储器2202和处理器2201之间通过总线2204连接，总线2204在图中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。该总线2204可以分为地址总线、数据总线、控制总线等。为便于表示，图22中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
处理器2201可以具有数据收发功能，能够与其他设备进行通信，在如图22装置中，也可以设置独立的数据收发模块，例如通信接口2203，用于收发数据；处理器2201在与其他设备进行通信时，可以通过通信接口2203进行数据传输。
当上述实施例中的AMF网元、LSMF网元或UDM网元采用图22所示的形式时，图22中的处理器2201可以通过调用存储器2202中存储的计算机执行指令，使得AMF网元、LSMF网元或UDM网元网元可以分别执行上述任一方法实施例中AMF网元、LSMF网元或UDM网元执行的方法。
具体的，AMF网元、LSMF网元或UDM网元中的发送单元、接收单元和处理单元的功能/实现过程均可以通过图22中的处理器2201调用存储器2202中存储的计算机执行指令来实现。或者，AMF网元、LSMF网元或UDM网元中的处理单元的功能/实现过程可以通过图22中的处理器2201调用存储器2202中存储的计算机执行指令来实现，AMF网元、LSMF网元或UDM网元中的发送单元和接收单元的功能/实现过程可以通过图22中的通信接口2203来实现。
在一个简单的实施例中，本领域的技术人员可以想到上述实施例中的终端可采用图23所示的形式。
如图23所示的局域网通信的管理装置2300，包括至少一个处理器2301、存储器2302，可选的，还可以包括收发器2303。
其中，存储器2302的实现方式可参见前述存储器2202，处理器2301的实现方式可参见前述处理器2201，收发器2303的实现方式可参见前述通信接口2203，此处不再赘述。
当上述实施例中的终端采用图23所示的形式时，图23中的处理器2301可以通过调用存储器2302中存储的计算机执行指令，使得终端可以执行上述任一方法实施例中终端执行的方法。
具体的，装置1800和装置2230中的发送单元、接收单元和处理单元的功能/实现过程均可以通过图23中的处理器2301调用存储器2302中存储的计算机执行指令来实现。或者，装 置1800和装置2230中的处理单元的功能/实现过程可以通过图23中的处理器2301调用存储器2302中存储的计算机执行指令来实现，装置1800和装置2230中的发送单元和接收单元的功能/实现过程可以通过图23中的收发器2303来实现。
本申请实施例提供的一种通信系统的结构示意图可参见图24，具体的，通信系统2400包括AMF网元和LSMF网元，可选的，还包括UDM网元。
所述AMF网元、LSMF网元和UDM网元分别用于实现上述图4-图14中相关网元的功能。具体请参考上述方法实施例中的相关描述，这里不再赘述。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (47)

  1. 一种局域网通信的管理方法，其特征在于，包括：
    接入和移动性管理功能网元获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息；
    所述接入和移动性管理功能网元根据所述注册区域信息以及所述LAN ID对应的服务区域信息，确定所述终端的LAN通信区域信息；
    所述接入和移动性管理功能网元向所述终端发送所述终端的LAN信息，所述终端的LAN信息包括所述LAN ID以及所述终端的LAN通信区域信息。
  2. 如权利要求1所述的方法，其特征在于，所述接入和移动性管理功能网元获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息，具体为：
    所述接入和移动性管理功能网元接收统一数据管理网元发送的第一签约数据更新通知，所述第一签约数据更新通知包括所述LAN ID以及所述终端的ID；
    所述接入和移动性管理功能根据所述终端的ID获取所述终端的注册区域信息；
    所述接入和移动性管理功能网元向局域网服务管理功能网元发送第一请求消息，所述第一请求消息中携带所述LAN ID，所述第一请求消息用于请求获取所述LAN ID对应的服务区域信息；
    所述接入和移动性管理功能网元接收所述局域网服务管理功能网元发送的第一响应消息，所述第一响应消息中携带所述LAN ID对应的服务区域信息；
    所述接入和移动性管理功能网元向所述终端发送所述终端的LAN信息，具体为：
    所述接入和移动性管理功能网元向所述终端发送第一配置更新消息，所述第一配置更新消息包括所述终端的LAN信息。
  3. 如权利要求1所述的方法，其特征在于，所述接入和移动性管理功能网元获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息，具体为：
    所述接入和移动性管理功能网元接收所述终端发送的第一注册请求消息，所述第一注册请求消息中携带所述终端的ID；
    所述接入和移动性管理功能网元向所述统一数据管理网元发送第一签约数据请求消息，所述第一签约数据请求消息中携带所述终端的ID；
    所述接入和移动性管理功能网元接收所述统一数据管理网元发送的第一签约数据响应消息，所述第一签约数据响应消息中携带所述LAN ID；
    所述接入和移动性管理功能生成所述终端的注册区域信息；
    所述接入和移动性管理功能网元向局域网服务管理功能网元发送第二请求消息，所述第二请求消息中携带所述LAN ID，所述第二请求消息用于请求获取所述LAN ID对应的服务区域信息；
    所述接入和移动性管理功能网元接收所述局域网服务管理功能网元发送的第二响应消 息，所述第二响应消息中携带所述LAN ID对应的服务区域信息；
    所述接入和移动性管理功能网元向所述终端发送所述终端的LAN信息，具体为：
    所述接入和移动性管理功能网元向所述终端发送第一注册响应消息，所述第一注册响应消息携带所述终端的LAN信息。
  4. 如权利要求1所述的方法，其特征在于，接入和移动性管理功能网元获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息，具体为：
    所述接入和移动性管理功能网元接收统一数据管理网元或者局域网服务管理功能网元发送的第二签约数据更新通知，所述第二签约数据更新通知包括所述LAN ID、所述LAN ID对应的服务区域信息以及所述终端的ID；
    所述接入和移动性管理功能根据所述第二签约数据更新通知中携带的所述终端的ID获取所述终端的注册区域信息；
    所述接入和移动性管理功能网元获取所述第二签约数据更新通知携带的所述LAN ID以及所述LAN ID对应的服务区域信息；
    所述接入和移动性管理功能网元向所述终端发送所述终端的LAN信息，具体为：
    所述接入和移动性管理功能网元向所述终端发送第二配置更新消息，所述第二配置更新消息包括所述终端的LAN信息。
  5. 如权利要求1所述的方法，其特征在于，接入和移动性管理功能网元获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息，具体为：
    所述接入和移动性管理功能网元接收所述终端发送的第二注册请求消息，所述第二注册请求消息中携带所述终端的ID；
    所述接入和移动性管理功能网元向所述统一数据管理网元或者局域网服务管理功能网元发送第二签约数据请求消息，所述第二签约数据请求消息中携带所述终端的ID；
    所述接入和移动性管理功能网元接收所述统一数据管理网元或者所述局域网服务管理功能网元发送的第二签约数据响应消息，所述第二签约数据响应消息中携带所述LAN ID以及所述LAN ID对应的服务区域信息；
    所述接入和移动性管理功能生成所述终端的注册区域信息；
    所述接入和移动性管理功能网元获取所述第二签约数据响应消息中携带的所述LAN ID以及所述LAN ID对应的服务区域信息；
    所述接入和移动性管理功能网元向所述终端发送所述终端的LAN信息，具体为：
    所述接入和移动性管理功能网元向所述终端发送第二注册响应消息，所述第二注册响应消息包括所述终端的LAN信息。
  6. 如权利要求5所述的方法，其特征在于，所述接入和移动性管理功能网元向所述局域网服务管理功能网元发送第二签约数据请求消息之前，还包括：所述接入和移动性管理功能网元获取所述终端的LAN指示信息或者所述终端的LAN签约信息；所述LAN指示信息携带在所述第二注册请求消息中；所述LAN签约信息为所述接入和移动性管理功能网元从统一数据管理网元获取；所述LAN指示信息或者所述LAN签约信息用于指示所述终端需要 使用所述LAN ID指示的LAN服务。
  7. 一种局域网通信的管理方法，其特征在于，包括：
    局域网服务管理功能网元接收通信设备发送的群组管理请求；
    所述局域网服务管理功能网元根据所述群组管理请求，获取终端的ID、所述终端的LAN ID以及所述LAN ID对应的服务区域信息。
  8. 如权利要求7所述的方法，其特征在于，在所述局域网服务管理功能网元根据所述群组管理请求，获取终端的ID、所述终端的LAN ID以及所述LAN ID对应的服务区域信息之后，还包括：
    所述局域网服务管理功能网元根据所述LAN ID对应的服务区域信息选择统一数据管理网元；
    所述局域网服务管理功能网元向所述统一数据管理网元发送第二配置参数，所述第二配置参数包括所述LAN ID以及所述终端的ID。
  9. 如权利要求8所述的方法，其特征在于，在所述局域网服务管理功能网元向所述统一数据管理网元发送第二配置参数之后，还包括：
    所述局域网服务管理功能网元接收接入和移动性管理功能网元发送的第三请求消息，所述第三请求消息中携带所述LAN ID，所述第三请求消息用于请求获取所述LAN ID对应的服务区域信息；
    所述局域网服务管理功能网元向所述接入和移动性管理功能网元发送第三响应消息，所述第三响应消息中携带所述LAN ID对应的服务区域信息。
  10. 如权利要求8所述的方法，其特征在于，所述第二配置参数还包括所述LAN ID对应的服务区域信息。
  11. 如权利要求7所述的方法，其特征在于，在所述局域网服务管理功能网元根据所述群组管理请求，获取终端的ID、所述终端的LAN ID以及所述LAN ID对应的服务区域信息之后，还包括：
    所述局域网服务管理功能网元接收接入和移动性管理功能网元发送的第三签约数据请求消息，所述第三签约数据请求消息中携带所述终端的ID，所述第三签约数据请求消息用于请求获取所述终端的LAN ID以及所述LAN ID对应的服务区域信息；
    所述局域网服务管理功能网元向所述接入和移动性管理功能网元发送第三签约数据响应消息，所述第三签约数据响应消息中携带所述LAN ID以及所述LAN ID对应的服务区域信息。
  12. 如权利要求7所述的方法，其特征在于，在所述局域网服务管理功能网元根据所述群组管理请求，获取终端的ID、所述终端的LAN ID以及所述LAN ID对应的服务区域信息之后，还包括：
    所述局域网服务管理功能网元向所述接入和移动性管理功能网元发送第二签约数据更新通知，所述第二签约数据更新通知包括所述LAN ID、所述LAN ID对应的服务区域信息以及所述终端的ID。
  13. 一种局域网通信的管理方法，其特征在于，包括：
    统一数据管理网元接收局域网服务管理功能网元发送的第二配置参数，所述第二配置 参数包括所述终端的LAN ID以及所述终端的ID；
    所述统一数据管理网元向接入和移动性管理功能网元发送第三签约数据更新通知，所述第三签约数据更新通知携带所述第二配置参数。
  14. 如权利要求13所述的方法，其特征在于，所述第二配置参数还包括所述LAN ID对应的服务区域信息。
  15. 一种局域网通信的管理方法，其特征在于，包括：
    终端接收接入和移动性管理功能网元发送的LAN信息，所述终端的LAN信息包括所述终端的LAN ID以及所述终端的LAN通信区域信息；
    所述终端根据所述LAN信息对所述终端的LAN通信进行管理。
  16. 如权利要求15所述的方法，其特征在于，终端接收接入和移动性管理功能网元发送的LAN信息，具体为：所述终端接收所述接入和移动性管理功能网元发送的第一消息，所述第一消息中携带所述终端的LAN信息，所述第一消息为配置更新消息、注册响应消息或PDU会话管理响应消息中的任一种。
  17. 一种局域网通信的管理装置，其特征在于，包括：
    处理单元，用于获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息；
    所述处理单元，还用于根据所述注册区域信息以及所述LAN ID对应的服务区域信息，确定所述终端的LAN通信区域信息；
    发送单元，用于向所述终端发送所述终端的LAN信息，所述终端的LAN信息包括所述LAN ID以及所述终端的LAN通信区域信息。
  18. 如权利要求17所述的装置，其特征在于，所述处理单元在获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息时，具体用于：
    所述处理单元通过接收单元接收统一数据管理网元发送的第一签约数据更新通知，所述第一签约数据更新通知包括所述LAN ID以及所述终端的ID；
    所述处理单元根据所述终端的ID获取所述终端的注册区域信息；
    所述处理单元通过所述发送单元向局域网服务管理功能网元发送第一请求消息，所述第一请求消息中携带所述LAN ID，所述第一请求消息用于请求获取所述LAN ID对应的服务区域信息；
    所述处理单元通过所述接收单元接收所述局域网服务管理功能网元发送的第一响应消息，所述第一响应消息中携带所述LAN ID对应的服务区域信息；
    所述发送单元在向所述终端发送所述终端的LAN信息时，具体用于：
    所述发送单元向所述终端发送第一配置更新消息，所述第一配置更新消息包括所述终端的LAN信息。
  19. 如权利要求17所述的装置，其特征在于，所述处理单元在获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息时，具体用于：
    所述处理单元通过接收单元接收所述终端发送的第一注册请求消息，所述第一注册请求消息中携带所述终端的ID；
    所述处理单元通过所述发送单元向所述统一数据管理网元发送第一签约数据请求消息， 所述第一签约数据请求消息中携带所述终端的ID；
    所述处理单元通过所述接收单元接收所述统一数据管理网元发送的第一签约数据响应消息，所述第一签约数据响应消息中携带所述LAN ID；
    所述处理单元生成所述终端的注册区域信息；
    所述处理单元通过所述发送单元向局域网服务管理功能网元发送第二请求消息，所述第二请求消息中携带所述LAN ID，所述第二请求消息用于请求获取所述LAN ID对应的服务区域信息；
    所述处理单元通过所述接收单元接收接收所述局域网服务管理功能网元发送的第二响应消息，所述第二响应消息中携带所述LAN ID对应的服务区域信息；
    所述发送单元在向所述终端发送所述终端的LAN信息时，具体用于：
    所述发送单元向所述终端发送第一注册响应消息，所述第一注册响应消息携带所述终端的LAN信息。
  20. 如权利要求17所述的装置，其特征在于，所述处理单元在获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息时，具体用于：
    所述处理单元通过接收单元接收统一数据管理网元或者局域网服务管理功能网元发送的第二签约数据更新通知，所述第二签约数据更新通知包括所述LAN ID、所述LAN ID对应的服务区域信息以及所述终端的ID；
    所述处理单元根据所述第二签约数据更新通知中携带的所述终端的ID获取所述终端的注册区域信息；
    所述处理单元获取所述第二签约数据更新通知携带的所述LAN ID以及所述LAN ID对应的服务区域信息；
    所述发送单元在向所述终端发送所述终端的LAN信息时，具体用于：
    所述发送单元向所述终端发送第二配置更新消息，所述第二配置更新消息包括所述终端的LAN信息。
  21. 如权利要求17所述的装置，其特征在于，所述处理单元在获取终端的注册区域信息、所述终端的局域网标识LAN ID以及所述LAN ID对应的服务区域信息时，具体用于：
    所述处理单元通过接收单元接收所述终端发送的第二注册请求消息，所述第二注册请求消息中携带所述终端的ID；
    所述处理单元通过所述发送单元向所述统一数据管理网元或者局域网服务管理功能网元发送第二签约数据请求消息，所述第二签约数据请求消息中携带所述终端的ID；
    所述处理单元通过所述接收单元接收所述统一数据管理网元或者所述局域网服务管理功能网元发送的第二签约数据响应消息，所述第二签约数据响应消息中携带所述LAN ID以及所述LAN ID对应的服务区域信息；
    所述处理单元生成所述终端的注册区域信息；
    所述处理单元获取所述第二签约数据响应消息中携带的所述LAN ID以及所述LAN ID对应的服务区域信息；
    所述发送单元在向所述终端发送所述终端的LAN信息时，具体用于：
    所述发送单元向所述终端发送第二注册响应消息，所述第二注册响应消息包括所述终 端的LAN信息。
  22. 如权利要求21所述的装置，其特征在于，所述处理单元还用于：
    在通过所述发送单元向所述局域网服务管理功能网元发送第二签约数据请求消息之前，获取所述终端的LAN指示信息或者所述终端的LAN签约信息；所述LAN指示信息携带在所述第二注册请求消息中；所述LAN签约信息为所述接入和移动性管理功能网元从统一数据管理网元获取；所述LAN指示信息或者所述LAN签约信息用于指示所述终端需要使用所述LAN ID指示的LAN服务。
  23. 一种局域网通信的管理装置，其特征在于，包括：
    接收单元，用于接收通信设备发送的群组管理请求；
    处理单元，用于根据所述群组管理请求，获取终端的ID、所述终端的LAN ID以及所述LAN ID对应的服务区域信息。
  24. 如权利要求23所述的装置，其特征在于，所述处理单元还用于：
    在根据所述群组管理请求，获取终端的ID、所述终端的LAN ID以及所述LAN ID对应的服务区域信息之后，根据所述LAN ID对应的服务区域信息选择统一数据管理网元；
    所述装置还包括：
    发送单元，用于向所述统一数据管理网元发送第二配置参数，所述第二配置参数包括所述LAN ID以及所述终端的ID。
  25. 如权利要求24所述的装置，其特征在于，所述接收单元还用于：
    在所述发送单元向所述统一数据管理网元发送第二配置参数之后，接收接入和移动性管理功能网元发送的第三请求消息，所述第三请求消息中携带所述LAN ID，所述第三请求消息用于请求获取所述LAN ID对应的服务区域信息；
    所述发送单元还用于：
    向所述接入和移动性管理功能网元发送第三响应消息，所述第三响应消息中携带所述LAN ID对应的服务区域信息。
  26. 如权利要求24所述的装置，其特征在于，所述第二配置参数还包括所述LAN ID对应的服务区域信息。
  27. 如权利要求23所述的装置，其特征在于，所述接收单元还用于：
    在所述处理单元根据所述群组管理请求，获取终端的ID、所述终端的LAN ID以及所述LAN ID对应的服务区域信息之后，接收接入和移动性管理功能网元发送的第三签约数据请求消息，所述第三签约数据请求消息中携带所述终端的ID，所述第三签约数据请求消息用于请求获取所述终端的LAN ID以及所述LAN ID对应的服务区域信息；
    所述装置还包括：
    发送单元，用于向所述接入和移动性管理功能网元发送第三签约数据响应消息，所述第三签约数据响应消息中携带所述LAN ID以及所述LAN ID对应的服务区域信息。
  28. 如权利要求23所述的装置，其特征在于，所述装置还包括：
    发送单元，用于在所述处理单元根据所述群组管理请求，获取终端的ID、所述终端的LAN ID以及所述LAN ID对应的服务区域信息之后，向所述接入和移动性管理功能网元发送第二签约数据更新通知，所述第二签约数据更新通知包括所述LAN ID、所述LAN ID对应的 服务区域信息以及所述终端的ID。
  29. 一种局域网通信的管理装置，其特征在于，包括：
    接收单元，用于接收局域网服务管理功能网元发送的第二配置参数，所述第二配置参数包括所述终端的LAN ID以及所述终端的ID。
    发送单元，用于向接入和移动性管理功能网元发送第三签约数据更新通知，所述第三签约数据更新通知携带所述第二配置参数。
  30. 如权利要求29所述的装置，其特征在于，所述第二配置参数还包括所述LAN ID对应的服务区域信息。
  31. 一种局域网通信的管理装置，其特征在于，包括：
    接收单元，用于接收接入和移动性管理功能网元发送的LAN信息，所述终端的LAN信息包括所述终端的LAN ID以及所述终端的LAN通信区域信息；
    处理单元，用于根据所述LAN信息对所述终端的LAN通信进行管理。
  32. 如权利要求31所述的装置，其特在于，所述接收模块在接收接入和移动性管理功能网元发送的LAN信息时，具体用于：所述接收模块接收所述接入和移动性管理功能网元发送的第一消息，所述第一消息中携带所述终端的LAN信息，所述第一消息为配置更新消息、注册响应消息或PDU会话管理响应消息中的任一种。
  33. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行如权利要求1至6中任一项所述的方法。
  34. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行如权利要求7至12中任一项所述的方法。
  35. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行如权利要求13至14中任一项所述的方法。
  36. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行如权利要求15至16中任一项所述的方法。
  37. 一种通信装置，其特征在于，所述装置包括处理器和存储器；
    所述存储器用于存储计算机执行指令，当所述装置运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述装置执行如权利要求1-6任一所述的方法。
  38. 一种通信装置，其特征在于，所述装置包括处理器和存储器；
    所述存储器用于存储计算机执行指令，当所述装置运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述装置执行如权利要求7-12任一所述的方法。
  39. 一种通信装置，其特征在于，所述装置包括处理器和存储器；
    所述存储器用于存储计算机执行指令，当所述装置运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述装置执行如权利要求13-14任一所述的方法。
  40. 一种通信装置，其特征在于，所述装置包括处理器和存储器；
    所述存储器用于存储计算机执行指令，当所述装置运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述装置执行如权利要求15-16任一所述的方法。
  41. 根据权利要求40所述的装置，其特征在于，所述装置为终端或者所述终端内的芯片。
  42. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述1到6任一项所述的方法。
  43. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述7到12任一项所述的方法。
  44. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述13到14任一项所述的方法。
  45. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述15到16任一项所述的方法。
  46. 一种通信系统，其特征在于，所述系统包括如权利要求17-22任一所述的装置和如权利要求23-28任一所述的装置。
  47. 根据权利要求46所述的系统，奇特在于，所述系统还包括如权利要求29-30任一所述的装置。
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