WO2023274294A1 - 局域网生成方法、网元、网络侧和通信系统及设备 - Google Patents

局域网生成方法、网元、网络侧和通信系统及设备 Download PDF

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Publication number
WO2023274294A1
WO2023274294A1 PCT/CN2022/102311 CN2022102311W WO2023274294A1 WO 2023274294 A1 WO2023274294 A1 WO 2023274294A1 CN 2022102311 W CN2022102311 W CN 2022102311W WO 2023274294 A1 WO2023274294 A1 WO 2023274294A1
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WIPO (PCT)
Prior art keywords
network element
address
upf
routing
user
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PCT/CN2022/102311
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English (en)
French (fr)
Inventor
尹君
谢沛荣
李文苡
陈洁
曹磊
王敏
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中国电信股份有限公司
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Publication of WO2023274294A1 publication Critical patent/WO2023274294A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246—Connectivity information discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/248—Connectivity information update
    • 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 disclosure relates to the technical field of wireless communication, in particular to a method for generating a local area network, a network element, a network side, and a communication system and equipment.
  • 3GPP defined 5G LAN Local Area Network, local area network
  • 5G LAN Local Area Network, local area network
  • 5G LAN Local Area Network, local area network
  • 5GVN Virtual Network, virtual network
  • DN Data Network, data
  • the devices in the network can communicate with each other in the following three ways: UPF (User Plane Function, user plane function) local switching, switching through the N19 interface between UPFs, and switching through the N6 interface.
  • UPF User Plane Function, user plane function
  • the standard 5G LAN function realizes UDM (Unified Data Management, unified data management), AMF (Authentication Management Function, authentication management function), SMF (Session Management Function, session management function) and UPF in the 5G core network elements.
  • UDM Unified Data Management, unified data management
  • AMF Authentication Management Function, authentication management function
  • SMF Session Management Function, session management function
  • UPF User Plane Function
  • One purpose of the present disclosure is to improve the configuration efficiency of 5G LAN.
  • a method for generating a local area network including: the UPF network element obtains the user plane forwarding rules and user identification from the SMF network element; the UPF network element configures frame routing (Framed Routing) according to the user identification Function to generate a Framed Routing forwarding table; according to the Framed Routing IP address segment corresponding to the user ID required by the network side, configure the forwarding rules for the first type of terminals in the LAN based on the addresses in the Framed Routing IP address segment, so that the first type of terminals can communicate with each other Information exchange in the LAN is carried out through the UPF network element, wherein, the first type of terminal is the terminal mounted on the CPE (Customer Premise Equipment, customer pre-equipment equipment); the UPF network element sends the first configuration information to the CPE.
  • the CPE Customer Premise Equipment, customer pre-equipment equipment
  • the local area network generation method further includes: the UPF network element configures the forwarding rule based on the address in the 5G LAN IP address segment between the second type of terminals in the LAN according to the 5G LAN IP address segment corresponding to the user identification required by the network side , so that the second type of terminals can exchange information in the LAN through the UPF network element; the UPF network element sends the second configuration information to the second type of terminal, and the second configuration information includes the address assigned to the corresponding terminal.
  • configuring the first type of terminal in the LAN based on the forwarding rule of the address in the Framed Routing IP address section includes: according to the user required by the network side Identify the corresponding 5G LAN IP address segment and Framed Routing IP address segment, and configure the forwarding rules for the first type of terminals in the LAN based on the addresses in the Framed Routing IP address segment, so that the first type of terminals communicate with each other and the second type of terminals communicate with the second type A class of terminals perform information exchange in the LAN through the UPF network element.
  • the first configuration information includes the address allocated to the CPE and the address allocated to the first type of terminal mounted on the CPE.
  • the UPF network element sending the first configuration information to the CPE includes: after completing the PDU (Protocol Data Unit, protocol data unit) session establishment, when the CPE accesses the UPF network element through the PDU session, the UPF network element sends the CPE Send the first configuration information.
  • PDU Protocol Data Unit, protocol data unit
  • the UPF network element configures the Framed Routing function according to the user identification
  • generating the Framed Routing forwarding table includes: the UPF triggers the AC (Access Point Controller, Access Point Control) module in the UPF to configure the Framed Routing information according to the user identification, and the AC The module generates a Framed Routing forwarding table; according to the Framed Routing IP address segment corresponding to the user ID required by the network side, configure the forwarding rules based on the address in the Framed Routing IP address segment between the first type of terminals in the LAN: AC module according to the requirements of the network side The Framed Routing IP address segment corresponding to the user ID, and configure the forwarding rules between the first type of terminals in the LAN based on the address in the Framed Routing IP address segment; the first configuration information sent by the UPF network element to the CPE includes: After completing the establishment of the PDU session , the AC module sends the first configuration information to the CPE through its own communication address.
  • the local area network generation method further includes: the UPF network element determines the virtual network VN group to which the first type of terminal belongs according to the DNN or slice to which the terminal belongs, wherein the first type of terminal in the same DNN or slice is in the same In a VN group, terminals in the same VN group communicate through UPF, and terminals in different VN groups are isolated from each other.
  • the local area network generation method further includes: the UPF network element determines the virtual network VN group to which the second type of terminal belongs according to the DNN or slice to which the terminal belongs, wherein the first type of terminal and the second type of terminal in the same DNN or slice Such terminals are in the same VN group, and the terminals in the same VN group communicate through UPF, and the terminals in different VN groups are isolated from each other.
  • the local area network generation method further includes: when the user terminal initiates a service request, the AMF network element selects the SMF network element according to the user information, and sends the user information to the SMF network element; the SMF network element queries the user's subscription according to the user information information; the SMF network element sends the user plane forwarding rules and user identification to the UPF network element.
  • the selection of the SMF network element by the AMF network element according to the user information includes: the AMF network element determines and selects the SMF network element having a connection relationship with the corresponding UPF network element according to the user information; the SMF network element queries the user's subscription information according to the user information Including: the SMF network element initiates a query request to the UDM network element or AAA network element to obtain the Framed Routing information corresponding to the user.
  • the local area network generation method further includes: the CPE configures its own address and the address of the mounted terminal according to the first configuration information from the UPF.
  • a UPF network element including: an instruction acquisition unit configured to acquire user plane forwarding rules and user identifiers from an SMF network element; an AC module configured to: according to the user Identify and configure the Framed Routing function to generate a Framed Routing forwarding table; according to the Framed Routing IP address segment corresponding to the user ID required by the network side, configure the forwarding rule based on the address in the Framed Routing IP address segment between the first type of terminals in the LAN, so that the second A class of terminals interacts with each other in the LAN through the UPF network element, wherein the first type of terminal is a terminal mounted on the customer's pre-equipment CPE; it sends the first configuration information to the CPE.
  • the user plane functional network element further includes: an address configuration unit configured to configure the second type of terminals in the LAN based on the 5G LAN IP address segment according to the 5G LAN IP address segment corresponding to the user identification required by the network side The forwarding rule of the address in the second type of terminal, so that the second type of terminal can exchange information in the LAN through the UPF network element; and the sending unit is configured to send the second configuration information to the second type of terminal, and the second configuration information includes the allocation to the corresponding terminal. the address of.
  • a network side system including: a UPF network element configured to perform any one of the methods performed by the UPF above; an AMF network element configured to When a service request is made, select the SMF network element according to the user information, and send the user information to the SMF network element; and the SMF network element is configured to query the user's subscription information according to the user information, and send the user plane forwarding rules and user information to the UPF network element. logo.
  • a communication system including: the above-mentioned network side system; and a CPE configured to configure its own address and mounted terminal according to the first configuration information from UPF the address of.
  • a network device including: a memory; and a processor coupled to the memory, the processor is configured to execute any one of the local area network generation methods above based on instructions stored in the memory .
  • a non-transitory computer-readable storage medium on which computer program instructions are stored, and when the instructions are executed by a processor, the steps of any one of the local area network generation methods above are implemented.
  • FIG. 1 is a flow chart of some embodiments of the method for generating a local area network of the present disclosure.
  • Fig. 2 is a flowchart of other embodiments of the method for generating a local area network of the present disclosure.
  • Fig. 3 is a flow chart of some other embodiments of the method for generating a local area network of the present disclosure.
  • FIG. 4 is a schematic diagram of some embodiments of a UPF network element of the present disclosure.
  • FIG. 5 is a schematic diagram of some embodiments of the network-side system of the present disclosure.
  • FIG. 6 is a schematic diagram of some embodiments of the communication system of the present disclosure.
  • FIG. 7 is a schematic diagram of some embodiments of a network device of the present disclosure.
  • Fig. 8 is a schematic diagram of other embodiments of the network device of the present disclosure.
  • FIG. 1 The flow chart of some embodiments of the method for generating a local area network of the present disclosure is shown in FIG. 1 .
  • the UPF network element obtains the user plane forwarding rule and user identifier from the SMF network element.
  • the UPF network element configures the frame routing function according to the user identifier, and generates a Framed Routing forwarding table.
  • the UPF network element configures the address of the first type of terminal in the LAN according to the Framed Routing IP address segment corresponding to the user identification required by the network side.
  • UPF network elements generate forwarding rules between Framed Routing IP addresses based on Framed Routing IP addresses.
  • the first type of terminal here is the terminal mounted on the CPE, such as laptops, desktops, AGV (Automated Guided Vehicle, unmanned vehicle) equipment, AR (Augmented Reality, augmented reality)/VR (Virtual Reality, virtual Reality) equipment, etc.
  • the first type of terminals in the same LAN can exchange information in the LAN through the UPF network element, without going through the DN (Data Network, data network), and can be forwarded through the UPF network element.
  • DN Data Network, data network
  • the UPF network element can also determine the VN group to which the first type of terminal belongs according to the DNN or slice to which the terminal belongs.
  • One UPF network element can serve as the forwarding network element of multiple VN groups at the same time.
  • the first type of terminal communicates through UPF, and the communication between terminals in different VN groups needs to be forwarded through DN.
  • the UPF network element sends first configuration information to the CPE.
  • the first configuration information includes the address allocated to the CPE and the address allocated to the first type of terminal mounted on the CPE.
  • the UPF network element may send the first configuration information to the CPE.
  • the UPF network element can configure the VN group to generate forwarding rules based on the Framed routing IP address segment, and deliver the IP address configured for Framed Routing on the core network to each terminal mounted under the CPE, so as to realize mounting on the 5G LAN
  • the address of the terminal under the CPE is automatically configured and matches the deployment of the core network, which overcomes the problem that the CPE is difficult to directly obtain the IP configuration of the core network in related technologies, does not need manual configuration and address translation operations, and improves the deployment efficiency of 5G LAN and terminal compatibility.
  • such a method does not need to modify the configuration of the public network SMF and UDM, which is conducive to popularization and application.
  • FIG. 2 A flow chart of another embodiment of the method for generating a local area network of the present disclosure is shown in FIG. 2 .
  • the UPF network element obtains the user plane forwarding rule and user identifier from the SMF network element.
  • the UPF network element configures the forwarding rule based on the address in the 5G LAN IP address segment between the second type of terminals in the LAN according to the 5G LAN IP address segment required by the network side, so that after the configuration is completed,
  • the second type of terminal performs information exchange in the LAN through the UPF network element.
  • the interaction between the second type of terminals on the same LAN can be forwarded through the UPF network element without going through the DN.
  • the second type of terminal is a terminal that supports 5G communication functions and can directly interact with UPF network elements without going through the CPE.
  • the UPF network element sends second configuration information to the second type of terminal, where the second configuration information includes the address assigned to the corresponding terminal.
  • the second type of terminal configures its own communication address according to the second configuration information from the UPF network element.
  • UPF network elements do not need to rely on the 5G LAN forwarding rules issued by SMF.
  • UPF configures the correspondence between DNN slices and IP address segments assigned to UEs, and generates corresponding forwarding rules based on the IP address segments assigned to UEs. , which improves the deployment efficiency of 5G LAN and improves the convenience of configuration management.
  • the UPF network element can also determine the VN group to which the second type of terminal belongs according to the DNN or slice to which the terminal belongs.
  • One UPF network element can serve as the forwarding network element of multiple VN groups at the same time.
  • the terminals communicate through UPF, and the communication between terminals in different VN groups needs to be forwarded through the DN switching device.
  • the terminals in the same VN group include terminals of the first type and terminals of the second type.
  • the UPF network element can also generate forwarding rules between addresses according to the 5G LAN IP address and the Framed Routing IP address.
  • the second type of terminal and the first type of terminal in the same LAN can exchange information in the LAN through the UPF network element, without going through the DN, and can be forwarded through the UPF network element.
  • the UPF network element can configure the VN group to generate forwarding rules based on the IP address segment allocated to the UE and the Framed routing IP address segment, and deliver the IP address configured for Framed Routing on the core network to each node mounted under the CPE.
  • Terminals combined with 5G LAN and Framed Routing, realizes automatic address configuration of 5G LAN terminals and terminals mounted under the CPE of 5G LAN, and matches the deployment of the core network, improving the flexibility of use and configuration.
  • such a method does not need to modify the configuration of the public network SMF and UDM, which is conducive to popularization and application.
  • the AC module can be separately configured in the UPF network element to perform related functions of Framed Routing.
  • steps 150 and 151 in the embodiment shown in FIG. 1 are implemented by the AC module in the UPF network element.
  • the UPF triggers the AC module in the UPF to configure Framed Routing information according to the user ID, and the AC module generates a Framed Routing forwarding table; the AC module configures the first IP address segment in the LAN according to the IP address segment corresponding to the user ID required by the network side.
  • the forwarding rules based on the addresses in the Framed Routing IP address segment between similar terminals; after completing the establishment of the PDU session, the AC module sends the first configuration information to the CPE through its own communication address.
  • a relatively independent AC module can be configured in the UPF to perform Framed Routing related functions, which is conducive to the harmonious realization of other functions of the UPF and avoids mutual interference; it reduces the occupation of existing resources in the UPF and ensures operating efficiency.
  • the way that the AC module has its own communication address also facilitates the direct interaction between the CPE and the AC module. The subsequent interaction process does not need to go through other parts of the UPF, which reduces the network pressure of the 5G LAN, reduces the interference to other services, and improves network efficiency. reliability.
  • FIG. 3 The flowchart of some other embodiments of the method for generating a local area network of the present disclosure is shown in FIG. 3 .
  • the AMF network element selects the SMF network element according to the user information, and sends the user information to the SMF network element.
  • the AMF may trigger an operation of selecting an SMF network element according to user information when a user terminal initiates a service request, such as an application service request or a flow request.
  • the user information may include the DNN subscribed by the user, the slice used, the location of the user, and the like.
  • the SMF network element queries the subscription information of the user according to the user information.
  • user information may be provided by the AMF to the SMF.
  • the SMF network element can initiate a query request to the UDM network element or the AAA server according to the user information to obtain Framed Routing information corresponding to the user.
  • the SMF network element sends the user plane forwarding rule and the user identifier to the UPF network element.
  • the SMF may determine that the UPF network element proposed in the present disclosure needs to be used according to the subscription information of the user, the location of the user, etc., and then perform subsequent steps.
  • the SMF when determining to trigger the use of the Framed Routing function, the SMF selects a UPF that is compatible with the disclosed method to carry the user session. SMF carries Framed Routing information in the information sent to UPF.
  • the UPF network element configures the framed routing (Framed Routing) function according to the user identifier, and generates a Framed Routing forwarding table.
  • the UPF network element configures the forwarding rule based on the address in the IP address segment between the second type of terminals in the LAN according to the IP address segment of the 5G LAN terminal corresponding to the user identification required by the network side, so that the second type of terminal Information exchange within the LAN is performed through the UPF network element.
  • step 352 according to the 5G LAN IP address and the Framed Routing IP address segment corresponding to the user identification required by the network side, configure the forwarding rule based on the address in the Framed Routing IP address segment between the first type of terminals in the LAN, so that the first type The terminals exchange information in the LAN through the UPF network element.
  • step 360 the UPF network element sends the second configuration information to the second type of terminal, and sends the first configuration information to the CPE.
  • step 370 after receiving the second configuration information, the second type of terminal sets the IP address in it as its own communication address in the LAN; after receiving the first configuration information, the CPE configures its own address and mounts the The address of the terminal.
  • FIG. 4 A schematic diagram of some embodiments of the user plane functional network element 41 of the present disclosure is shown in FIG. 4 .
  • the instruction acquisition unit 411 can acquire the user plane forwarding rules and user identifiers from the SMF network element.
  • the AC module 414 can configure the Framed Routing information after the UPF receives the Framed Routing information of the SMF, and the AC module generates a Framed Routing forwarding table; the AC module configures the Framed Routing IP address segment of the user identification required by the network side to configure the Framed Routing IP address segment in the LAN.
  • a forwarding rule based on the address in the Framed Routing IP address segment between a class of terminals; after completing the establishment of the PDU session, the AC module sends the first configuration information to the CPE through its own communication address.
  • Such a UPF network element can configure the VN group to generate forwarding rules based on the Framed routing IP address segment, and deliver the IP address configured for Framed Routing on the core network to each terminal mounted under the CPE, so as to be mounted under the CPE of the 5G LAN
  • the address of the terminal is automatically configured and matched with the deployment of the core network, which overcomes the problem that it is difficult for the CPE to directly obtain the IP configuration of the core network in related technologies, and does not require manual configuration and address translation operations, which improves the deployment efficiency of 5G LAN and terminal compatibility Spend.
  • the UPF network element has a relatively independent AC module to perform Framed Routing related functions, which is conducive to the harmonious realization of other functions of the UPF and avoids mutual interference; it reduces the occupation of existing resources in the UPF and ensures operating efficiency.
  • the way that the AC module has its own communication address also facilitates the direct interaction between the CPE and the AC module. The subsequent interaction process does not need to go through other parts of the UPF, which reduces the network pressure of the 5G LAN, reduces the interference to other services, and improves the reliability of the network. .
  • the UPF network element 41 may further include an address configuration unit 412 and a sending unit 413 .
  • the address configuration unit 412 can configure the forwarding rule based on the address in the 5G LAN IP address segment between the second type of terminals in the LAN according to the 5G LAN IP address segment corresponding to the user identification required by the network side, so that after the configuration is completed, the second type Terminals use UPF network elements to exchange information in the LAN, and the interaction between the second type of terminals on the same LAN does not need to pass through DN, but can be forwarded through UPF network elements.
  • the sending unit 413 can send the second configuration information to the second type of terminal, where the second configuration information includes the address assigned to the corresponding terminal.
  • the second type of terminal configures its own communication address according to the second configuration information from the UPF network element.
  • Such a UPF network element does not need to rely on the 5G LAN forwarding rules issued by the SMF.
  • the UPF configures the corresponding relationship between the DNN/slice and the IP address segment assigned to the UE, and generates corresponding forwarding rules based on the IP address segment assigned to the UE to improve Improve the deployment efficiency of 5G LAN.
  • the AC module 414 can also generate forwarding rules between addresses according to the 5G LAN IP address and the Framed Routing IP address, so that the second type of terminal and the first type of terminal in the same LAN can pass through the UPF network element For information exchange within the LAN, it does not need to go through the DN, and can be forwarded through the UPF network element.
  • Such a UPF network element can combine the IP address segment allocated to the UE and the Framed routing IP address segment to configure the VN group to generate forwarding rules, which improves the deployment efficiency and terminal compatibility of 5G LAN.
  • FIG. 5 A schematic diagram of some embodiments of the network-side system of the present disclosure is shown in FIG. 5 .
  • the AMF network element 53 can select the SMF network element according to the user information, and send the user information to the SMF network element.
  • the AMF may trigger an operation of selecting an SMF network element according to user information when a user terminal initiates a service request, such as an application service request or a flow request.
  • the user information may include the DNN subscribed by the user, the slice used, the location of the user, and the like.
  • the SMF network element 52 can query the subscription information of the user according to the user information.
  • user information may be provided by the AMF to the SMF.
  • the SMF network element can initiate a query request to the UDM network element or the AAA network element according to the user information to obtain Framed Routing information corresponding to the user.
  • the SMF network element 52 can also send the user plane forwarding rule and the user identifier to the UPF network element.
  • the SMF may determine that the UPF needs to be customized according to the subscription information of the user, the location of the user, etc., and then perform subsequent steps.
  • the UPF network element 51 may be any one of the UPF network elements mentioned in this disclosure, and can execute any one of the methods for generating a local area network performed by the UPF network element above.
  • Such a network-side system can deliver the IP address configured by the core network for 5G LAN to each terminal, realize the automatic configuration of the LAN address of the 5G LAN terminal, and match the deployment of the core network, without manual configuration operations, and improve the 5G LAN address.
  • the configuration of the Framed Routing function it can overcome the problem that the 5G LAN and Framed routing functions are independent and irrelevant to each other in related technologies, and realize the Framed routing function in the 5G LAN configuration at the same time, ensuring that there is no 5G communication Capable terminals can also realize terminal interaction in 5G LAN synchronously, which improves the compatibility with terminals, reduces network signaling, and improves deployment efficiency.
  • FIG. 6 A schematic diagram of some embodiments of the communication system of the present disclosure is shown in FIG. 6 .
  • the network side system 60 may be any one mentioned above.
  • the UPF in the network side system 60 communicates with the user terminal through the base station.
  • the user terminal may be one or more second-type terminals 621 that support the function of directly interacting with the 5G base station.
  • the UPF can also interact with the CPE 611 through the base station, and the CPE 611 is mounted with one or more first-type terminals 6111 .
  • the second-type terminal 621 After receiving the second configuration information from the network-side system 60, the second-type terminal 621 sets the IP address as its own communication address in the LAN; after receiving the first configuration information from the network-side system 60, the CPE611 , assign the addresses in it to itself and the terminals mounted on it, and configure its own address and the addresses of the terminals mounted on it.
  • Such a communication system can realize the automatic configuration of the local area network address of the 5G LAN terminal, and match the deployment of the core network, which improves the deployment efficiency of the 5G LAN; it can also realize the Framed routing function in the 5G LAN configuration to ensure that it does not have 5G communication capabilities
  • the terminal can also realize the terminal interaction in the 5G LAN synchronously, which improves the compatibility with the terminal, reduces the network signaling, and improves the deployment efficiency.
  • the same UPF of the network side system 60 can support forwarding network elements as one or more VN groups, such as LAN 63 and LAN 64 shown in FIG. 6 , where LAN 64 can include one or more A second type terminal 622, and one or more CPE612, each CPE is mounted with one or more first type terminals 6121.
  • the UPF network element in the network side system 60 can also determine the VN group to which the terminal belongs according to the DNN or slice to which the terminal belongs, allowing terminals in the same VN group to communicate through UPF, and not allowing communication between terminals in different VN groups. Forwarding is performed through the switching device of the DN.
  • Such a communication system can support the same UPF network element to provide message forwarding services for multiple LANs, realize the isolation of terminals between different VN groups, and improve information security.
  • the communication system of the present disclosure can be applied to the establishment of local area networks of enterprise customers. For example, there are two isolated network environments (office network and production network) in the enterprise network, and the terminals in the two network environments are respectively assigned Or the CPE subscribes to different DNNs or slices, and assigns different IP address segments to different DNNs or slices.
  • Framed routing is configured for the corresponding CPE through the AC module of the UPF.
  • the UPF takes effect locally, the PDU session established by the CPE is used to send the configuration information to the CPE.
  • UPF configures the corresponding VN group according to the IP address obtained by the 5G terminal and the Framed routing address segment corresponding to the CPE.
  • the terminals under the same DNN/slice are in the same VN group, and the terminals in the same group can communicate with each other. Different VN groups terminals are isolated from each other.
  • Such a communication system can meet the needs of enterprise-level customers for building multi-LANs, and enable various terminals to support 5G LAN-based interaction capabilities, which is conducive to popularization and application; realizes the isolation of terminals between different VN groups, and improves information security; improves The deployment efficiency of 5G LAN also improves the convenience of configuration management.
  • the network device may be a UPF network element, a CPE, etc., and includes a memory 701 and a processor 702 .
  • the storage 701 may be a disk, a flash memory or any other non-volatile storage medium.
  • the memory is used to store instructions executed by corresponding network elements in the corresponding embodiments of the local area network generating method above.
  • the processor 702 is coupled to the memory 701 and may be implemented as one or more integrated circuits, such as a microprocessor or a microcontroller.
  • the processor 702 is configured to execute instructions stored in the memory, which can improve configuration efficiency of the 5G LAN.
  • the network device 800 includes a memory 801 and a processor 802 .
  • the processor 802 is coupled to the memory 801 through the BUS bus 803 .
  • the network device 800 can also be connected to an external storage device 805 through a storage interface 804 to call external data, and can also be connected to a network or another computer system (not shown) through a network interface 806 . No more detailed introduction here.
  • the configuration efficiency of the 5G LAN can be improved by storing data instructions in the memory and processing the above instructions by the processor.
  • a computer-readable storage medium stores computer program instructions thereon, and when the instructions are executed by a processor, the method for generating a local area network corresponds to the steps of the method in the embodiment.
  • the embodiments of the present disclosure may be provided as methods, apparatuses, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein. .
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
  • the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
  • the methods and apparatus of the present disclosure may be implemented in many ways.
  • the methods and devices of the present disclosure may be implemented by software, hardware, firmware or any combination of software, hardware, and firmware.
  • the above sequence of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the sequence specifically described above unless specifically stated otherwise.
  • the present disclosure can also be implemented as programs recorded in recording media, the programs including machine-readable instructions for realizing the method according to the present disclosure.
  • the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

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Abstract

本公开提出一种局域网生成方法、网元、网络侧和通信系统及设备，涉及无线通信技术领域。本公开的一种局域网生成方法，包括：用户面功能UPF网元获取来自会话管理功能SMF网元的用户面转发规则和用户标识；根据用户标识配置帧路由Framed Routing功能，生成Framed Routing转发表；根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端基于Framed Routing IP地址段中地址的转发规则，以便第一类终端互相之间通过UPF网元进行LAN内信息交互，其中，第一类终端为挂载在客户前置设备CPE的终端；UPF网元向CPE发送第一配置信息。通过这样的方法，实现挂载在5G LAN的CPE下的终端的地址自动化配置，且与核心网的部署相匹配，提高5G LAN业务的配置效率。

Description

局域网生成方法、网元、网络侧和通信系统及设备
相关申请的交叉引用
本申请是以CN申请号为202110737863.7，申请日为2021年6月30日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及无线通信技术领域，特别是一种局域网生成方法、网元、网络侧和通信系统及设备。
背景技术
3GPP在R16中定义了5G LAN(Local Area Network，局域网)特性。将签约同一切片和DNN(Data Network Name，数据网络名称)的一组终端指定为一个5GVN(Virtual Network，虚拟网络)组，组内终端与终端、终端与N6接口对接的DN(Data Network，数据网络)中的设备可以通过以下三种方式互通：UPF(User Plane Function,用户面功能)本地交换、通过UPF间N19接口交换，以及通过N6接口交换。
标准的5G LAN功能实现对5G核心网网元中的UDM(Unified Data Management，统一数据管理)、AMF(Authentication Management Function，认证管理功能)、SMF(Session Management Function，会话管理功能)、UPF都有要求，实现5G LAN业务，需要涉及到公网的多个网元都进行升级改造。
发明内容
本公开的一个目的在于提高5G LAN的配置效率。
根据本公开的一些实施例的一个方面，提出一种局域网生成方法，包括：UPF网元获取来自SMF网元的用户面转发规则和用户标识；UPF网元根据用户标识配置帧路由(Framed Routing)功能，生成Framed Routing转发表；根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端基于Framed Routing IP地址段中地址的转发规则，以便第一类终端互相之间通过UPF网元进行LAN内信息交互，其中，第一类终端为挂载在CPE(Customer Premise Equipment， 客户前置设备)的终端；UPF网元向CPE发送第一配置信息。
在一些实施例中，局域网生成方法还包括：UPF网元根据网络侧要求的用户标识对应的5G LAN IP地址段，配置LAN内的第二类终端间基于5G LAN IP地址段中地址的转发规则，以便第二类终端间通过UPF网元进行LAN内信息交互；UPF网元向第二类终端发送第二配置信息，第二配置信息中包括分配给对应终端的地址。
在一些实施例中，根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端基于所述Framed Routing IP地址段中地址的转发规则包括：根据网络侧要求的用户标识对应的5G LAN IP地址段和Framed Routing IP地址段，配置LAN内的第一类终端基于Framed Routing IP地址段中地址的转发规则，以便第一类终端互相之间以及第二类终端与第一类终端之间通过UPF网元进行LAN内信息交互。
在一些实施例中，第一配置信息中包括分配给CPE的地址，和分配给挂载在CPE的第一类终端的地址。
在一些实施例中，UPF网元向CPE发送第一配置信息包括：在完成PDU(Protocol Data Unit，协议数据单元)会话建立后，当CPE通过PDU会话访问UPF网元时，UPF网元向CPE发送第一配置信息。
在一些实施例中，UPF网元根据用户标识配置Framed Routing功能，生成Framed Routing转发表包括：UPF根据用户标识触发UPF中的AC(Access Point Controller，接入点控制)模块配置Framed Routing信息，AC模块生成Framed Routing转发表；根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端间基于Framed Routing IP地址段中地址的转发规则包括：AC模块根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端间基于Framed Routing IP地址段中地址的转发规则；UPF网元向CPE发送第一配置信息包括：在完成PDU会话建立后，AC模块通过自身的通信地址向CPE发送第一配置信息。
在一些实施例中，局域网生成方法还包括：UPF网元根据终端所属的DNN或切片确定第一类终端归属的虚拟网络VN组，其中，同一个DNN或切片内的第一类终端在同一个VN组内，同一个VN组内的终端间通过UPF通信，不同的VN组的终端间相互隔离。
在一些实施例中，局域网生成方法还包括：UPF网元根据终端所属的DNN或切 片确定第二类终端归属的虚拟网络VN组，其中，同一个DNN或切片内的第一类终端和第二类终端在同一个VN组内，同一个VN组内的终端间通过UPF通信，不同的VN组的终端间相互隔离。
在一些实施例中，局域网生成方法还包括：当用户终端发起业务请求时，AMF网元根据用户信息选择SMF网元，并向SMF网元发送用户信息；SMF网元根据用户信息查询用户的签约信息；SMF网元向UPF网元发送用户面转发规则和用户标识。
在一些实施例中，AMF网元根据用户信息选择SMF网元包括：AMF网元根据用户信息确定选择与对应UPF网元具有连接关系的SMF网元；SMF网元根据用户信息查询用户的签约信息包括：SMF网元向UDM网元或AAA网元发起查询请求，获取用户对应的Framed Routing信息。
在一些实施例中，局域网生成方法还包括：CPE根据来自UPF的第一配置信息，配置自身的地址和挂载的终端的地址。
根据本公开的一些实施例的一个方面，提出一种UPF网元，包括：指令获取单元，被配置为获取来自SMF网元的用户面转发规则和用户标识；AC模块，被配置为：根据用户标识配置Framed Routing功能，生成Framed Routing转发表；根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端间基于Framed Routing IP地址段中地址的转发规则，以便第一类终端互相之间通过UPF网元进行LAN内信息交互，其中，第一类终端为挂载在客户前置设备CPE的终端；向CPE发送第一配置信息。
在一些实施例中，用户面功能网元还包括：地址配置单元，被配置为根据网络侧要求的用户标识对应的5G LANIP地址段，配置LAN内的第二类终端间基于5G LAN IP地址段中地址的转发规则，以便第二类终端间通过UPF网元进行LAN内信息交互；和发送单元，被配置为向第二类终端发送第二配置信息，第二配置信息中包括分配给对应终端的地址。
根据本公开的一些实施例的一个方面，提出一种网络侧系统，包括：UPF网元，被配置为执行上文中任意一项由UPF执行的方法；AMF网元，被配置为当用户终端发起业务请求时，根据用户信息选择SMF网元，并向SMF网元发送用户信息；和SMF网元，被配置为根据用户信息查询用户的签约信息，并向UPF网元发送用户面转发规则和用户标识。
根据本公开的一些实施例的一个方面，提出一种通信系统，包括：上文中的网络 侧系统；和CPE，被配置为根据来自UPF的第一配置信息，配置自身的地址和挂载的终端的地址。
根据本公开的一些实施例的一个方面，提出一种网络设备，包括：存储器；以及耦接至存储器的处理器，处理器被配置为基于存储在存储器的指令执行上文中任意一种局域网生成方法。
根据本公开的一些实施例的一个方面，提出一种非瞬时性计算机可读存储介质，其上存储有计算机程序指令，该指令被处理器执行时实现上文中任意一种局域网生成方法的步骤。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开的局域网生成方法的一些实施例的流程图。
图2为本公开的局域网生成方法的另一些实施例的流程图。
图3为本公开的局域网生成方法的又一些实施例的流程图。
图4为本公开的UPF网元的一些实施例的示意图。
图5为本公开的网络侧系统的一些实施例的示意图。
图6为本公开的通信系统的一些实施例的示意图。
图7为本公开的网络设备的一些实施例的示意图。
图8为本公开的网络设备的另一些实施例的示意图。
具体实施方式
下面通过附图和实施例，对本公开的技术方案做进一步的详细描述。
当前客户的网络中有大量的终端需要通过WiFi(Wireless Fidelity，无线保真)接入网络，例如当前不具备直接接入5G网络能力的终端。具备接收移动信号并挂载其他终端能力的CPE设备在网络部署中大量的被使用。相关技术中，当网络侧主动向CPE挂载的终端发送数据时，需要利用3GPP标准中定义的Framed routing功能。3GPP中定义的Framed routing功能需要由SMF从AAA(Authentication、Authorization、Accounting，验证、授权和记账)服务器或者UDM获取，然后将数据 转发策略下发给UPF。
本公开的局域网生成方法的一些实施例的流程图如图1所示。
在步骤140中，UPF网元获取来自SMF网元的用户面转发规则和用户标识。
在步骤150中，UPF网元根据用户标识配置帧路由功能，生成Framed Routing转发表。
在步骤151中，UPF网元根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端的地址。另外，UPF网元根据Framed Routing IP地址，生成Framed Routing IP地址间的转发规则。这里的第一类终端即为挂载在CPE的终端，如笔记本电脑、台式机、AGV(Automated Guided Vehicle，无人搬运车)设备、AR(Augmented Reality，增强现实)/VR(Virtual Reality，虚拟现实)设备等。同一个LAN内的第一类终端间通过UPF网元进行LAN内信息交互，无需再经过DN(Data Network，数据网络)，可以通过UPF网元进行转发。
在一些实施例中，UPF网元还可以根据终端所属的DNN或切片确定第一类终端归属的VN组，一个UPF网元可以同时作为多个VN组的转发网元，同一个VN组内的第一类终端之间通过UPF通信，不同的VN组内的终端间通信需要通过DN转发。通过这样的方法，能够支持同一个UPF网元为多个LAN提供消息转发服务，实现不同VN组间终端的隔离，提高信息安全性。
在步骤160中，UPF网元向CPE发送第一配置信息。在一些实施例中，第一配置信息中包括分配给CPE的地址，和分配给挂载在CPE的第一类终端的地址。
在一些实施例中，可以在终端完成PDU会话建立后，当CPE通过PDU会话访问UPF网元时，由UPF网元向CPE发送第一配置信息。
通过这样的方法，UPF网元能够基于Framed routing IP地址段配置VN组生成转发规则，将核心网为Framed Routing配置的IP地址下发至挂载在CPE下的各个终端，实现挂载在5G LAN的CPE下的终端的地址自动化配置，且与核心网的部署相匹配，克服相关技术中CPE难以直接获得核心网的IP配置的问题，无需手动配置和地址转换操作，提高了5G LAN的部署效率和终端兼容度。另外，这样的方式无需对公网SMF和UDM进行配置改造，有利于推广应用。
本公开的局域网生成方法的另一些实施例的流程图如图2所示。
在步骤240中，UPF网元获取来自SMF网元的用户面转发规则和用户标识。
在步骤252中，UPF网元根据网络侧要求的用户标识对应的5G LAN IP地址段， 配置LAN内的第二类终端间基于5G LAN IP地址段中地址的转发规则，以便在完成配置后，第二类终端间通过UPF网元进行LAN内信息交互。相同LAN的第二类终端间的交互无需再经过DN，可以通过UPF网元进行转发。第二类终端为支持5G通信功能，无需经过CPE，能够直接与UPF网元交互的终端。
在步骤261中，UPF网元向第二类终端发送第二配置信息，第二配置信息中包括分配给对应终端的地址。第二类终端会根据来自UPF网元的第二配置信息来配置自身的通信地址。
通过这样的方法，UPF网元不需依赖SMF下发的5G LAN转发规则，UPF配置DNN切片与分配给UE的IP地址段的对应关系，同时根据分配给UE的IP地址段生成相应的转发规则，提高了5G LAN的部署效率，也提高了配置管理的便捷度。
在一些实施例中，UPF网元还可以根据终端所属的DNN或切片确定第二类终端归属的VN组，一个UPF网元可以同时作为多个VN组的转发网元，同一个VN组内的终端间通过UPF通信，不同的VN组内的终端间通信需要通过DN的交换设备进行转发。在一些实施例中，同一个VN组内的终端包括第一类终端和第二类终端。
通过这样的方法，能够支持同一个UPF网元为多个LAN提供消息转发服务，实现不同VN组间终端的隔离，提高信息安全性。
在一些实施例中，在上述步骤151中，UPF网元还可以根据5G LAN IP地址和Framed Routing IP地址，生成地址间的转发规则。同一个LAN内的第二类终端与第一类终端间可以通过UPF网元进行LAN内信息交互，无需再经过DN，可以通过UPF网元进行转发。
通过这样的方法，UPF网元能够结合分配给UE的IP地址段和Framed routing IP地址段配置VN组生成转发规则，将核心网为Framed Routing配置的IP地址下发至挂载在CPE下的各个终端，并将5G LAN与Framed Routing相结合，实现5G LAN终端以及挂载在5G LAN的CPE下的终端的地址自动化配置，且与核心网的部署相匹配，提高了使用和配置的灵活度。另外，这样的方式无需对公网SMF和UDM进行配置改造，有利于推广应用。
在一些实施例中，可以在UPF网元中单独配置AC模块执行Framed Routing的相关功能。在一些实施例中，如图1所示实施例中步骤150、151由UPF网元中的AC模块实现。
在一些实施例中，UPF根据用户标识触发UPF中的AC模块配置Framed Routing 信息，AC模块生成Framed Routing转发表；AC模块根据网络侧要求的用户标识对应的IP地址段，配置LAN内的第一类终端间基于Framed Routing IP地址段中地址的转发规则；在完成PDU会话建立后，AC模块通过自身的通信地址向CPE发送第一配置信息。
通过这样的方法，能够在UPF中配置相对独立的AC模块执行Framed Routing的相关功能，有利于与UPF其他功能的和谐实现，且避免相互干扰；减少占用UPF中已有的资源，确保运行效率。另外，AC模块具备自身的通信地址的方式也方便CPE与AC模块之间直接的交互，后续交互过程无需经过UPF的其他部分，降低5G LAN的网络压力，降低对其他业务的干扰，提高网络的可靠性。
本公开的局域网生成方法的又一些实施例的流程图如图3所示。
在步骤310中，AMF网元根据用户信息选择SMF网元，并向SMF网元发送用户信息。在一些实施例中，AMF可以在用户终端发起业务请求时，如发起应用服务请求或流量请求时，触发执行根据用户信息选择SMF网元的操作。在一些实施例中，用户信息可以包括用户签约的DNN、使用的切片、用户所处的位置等。
在步骤320中，SMF网元根据用户信息查询用户的签约信息。在一些实施例中，用户信息可以由AMF提供给SMF。在一些实施例中，SMF网元可以根据用户信息向UDM网元或AAA服务器发起查询请求，获取用户对应的Framed Routing信息。
在步骤330中，SMF网元向UPF网元发送用户面转发规则和用户标识。在一些实施例中，SMF可以根据用户签约信息、用户所处的位置等，确定需要采用本公开提出的UPF网元，进而执行后续步骤。
在一些实施例中，在确定触发使用Framed Routing功能时，SMF选择能够兼容本公开方法的UPF承载用户会话。SMF在下发给UPF的信息中携带Framed Routing信息。
在步骤350中，UPF网元根据用户标识配置帧路由(Framed Routing)功能，生成Framed Routing转发表。
在步骤351中，UPF网元根据网络侧要求的用户标识对应的5G LAN终端的IP地址段，配置LAN内的第二类终端间基于IP地址段中地址的转发规则，以便第二类终端间通过UPF网元进行LAN内信息交互。
在步骤352中，根据网络侧要求的用户标识对应的5G LAN IP地址和Framed Routing IP地址段，配置LAN内的第一类终端间基于Framed Routing IP地址段中地 址的转发规则，以便第一类终端间通过UPF网元进行LAN内信息交互。
在步骤360中，UPF网元向第二类终端发送第二配置信息，并向CPE发送第一配置信息。
在步骤370中，第二类终端在收到第二配置信息后，将其中的IP地址设置为自身在LAN内的通信地址；CPE在收到第一配置信息后，配置自身的地址和挂载的终端的地址。
通过这样的方法，能够克服相关技术中5G LAN与Framed routing功能相互独立、互不相关的问题，在5G LAN配置中同时实现Framed routing功能，确保不具备5G通信能力的终端也能够同步实现基于5G LAN的终端交互，提高了对于终端的兼容能力，减少了网络信令，提高了部署效率。
本公开的用户面功能网元41的一些实施例的示意图如图4所示。
指令获取单元411能够获取来自SMF网元的用户面转发规则和用户标识。
AC模块414，能够在UPF收到SMF的Framed Routing信息后，配置Framed Routing信息，AC模块生成Framed Routing转发表；AC模块根据网络侧要求的用户标识的Framed Routing IP地址段，配置LAN内的第一类终端间基于Framed Routing IP地址段中地址的转发规则；在完成PDU会话建立后，AC模块通过自身的通信地址向CPE发送第一配置信息。
这样的UPF网元能够基于Framed routing IP地址段配置VN组生成转发规则，将核心网为Framed Routing配置的IP地址下发至挂载在CPE下的各个终端，实现挂载在5G LAN的CPE下的终端的地址自动化配置，且与核心网的部署相匹配，克服相关技术中CPE难以直接获得核心网的IP配置的问题，无需手动配置和地址转换操作，提高了5G LAN的部署效率和终端兼容度。
另外，UPF网元具备相对独立的AC模块执行Framed Routing的相关功能，有利于与UPF其他功能的和谐实现，且避免相互干扰；减少占用UPF中已有的资源，确保运行效率。AC模块具备自身的通信地址的方式也方便CPE与AC模块之间直接的交互，后续交互过程无需经过UPF的其他部分，降低5G LAN的网络压力，降低对其他业务的干扰，提高网络的可靠性。
在一些实施例中，如图4所示，UPF网元41中还可以包括地址配置单元412和发送单元413。地址配置单元412能够根据网络侧要求的用户标识对应的5G LAN IP地址段，配置LAN内的第二类终端间基于5G LAN IP地址段中地址的转发规则，以 便在完成配置后，第二类终端间通过UPF网元进行LAN内信息交互，相同LAN的第二类终端间的交互无需再经过DN，可以通过UPF网元进行转发。
发送单元413能够向第二类终端发送第二配置信息，第二配置信息中包括分配给对应终端的地址。第二类终端会根据来自UPF网元的第二配置信息来配置自身的通信地址。
这样的UPF网元不需依赖SMF下发的5G LAN转发规则，UPF配置DNN/切片与分配给UE的IP地址段的对应关系，同时根据分配给UE的IP地址段生成相应的转发规则，提高了5G LAN的部署效率。
在一些实施例中，AC模块414还能够根据5G LAN IP地址和Framed Routing IP地址，生成地址间的转发规则，使得同一个LAN内的第二类终端与第一类终端间可以通过UPF网元进行LAN内信息交互，无需再经过DN，可以通过UPF网元进行转发。
这样的UPF网元能够结合分配给UE的IP地址段和Framed routing IP地址段配置VN组生成转发规则，提高了5G LAN的部署效率和终端兼容度。
本公开的网络侧系统的一些实施例的示意图如图5所示。
AMF网元53能够根据用户信息选择SMF网元，并向SMF网元发送用户信息。在一些实施例中，AMF可以在用户终端发起业务请求时，如发起应用服务请求或流量请求时，触发执行根据用户信息选择SMF网元的操作。在一些实施例中，用户信息可以包括用户签约的DNN、使用的切片、用户所处的位置等。
SMF网元52能够根据用户信息查询用户的签约信息。在一些实施例中，用户信息可以由AMF提供给SMF。在一些实施例中，SMF网元可以根据用户信息向UDM网元或AAA网元发起查询请求，获取用户对应的Framed Routing信息。
在一些实施例中，SMF网元52还能够向UPF网元发送用户面转发规则和用户标识。在一些实施例中，SMF可以根据用户签约信息、用户所处的位置等，确定需要定制UPF，进而执行后续步骤。
UPF网元51可以为本公开中提到的任意一种UPF网元，能够执行上文中任意一项由UPF网元执行的局域网生成方法。
这样的网络侧系统能够将核心网为5G LAN配置的IP地址下发至各个终端，实现5G LAN终端的局域网地址自动化配置，且与核心网的部署相匹配，无需手动配置操作，提高了5G LAN的部署效率；另外，通过对于Framed Routing功能的配置， 能够克服相关技术中5G LAN与Framed routing功能相互独立、互不相关的问题，在5G LAN配置中同时实现Framed routing功能，确保不具备5G通信能力的终端也能够同步实现5G LAN内的终端交互，提高了对于终端的兼容能力，减少了网络信令，提高了部署效率。
本公开的通信系统的一些实施例的示意图如图6所示。
网络侧系统60可以为上文中提到的任意一种。网络侧系统60中的UPF通过基站与用户终端通信。用户终端可以为一个或多个支持与5G基站直接交互功能的第二类终端621。另外，UPF还可以通过基站与CPE611交互，CPE611挂载有一个或多个第一类终端6111。
第二类终端621在收到来自网络侧系统60的第二配置信息后，将其中的IP地址设置为自身在LAN内的通信地址；CPE611在收到来自网络侧系统60的第一配置信息后，将其中的地址分配给自身和自身挂载的终端，配置自身的地址和挂载的终端的地址。
这样的通信系统能够实现5G LAN终端的局域网地址自动化配置，且与核心网的部署相匹配，提高了5G LAN的部署效率；能够在5G LAN配置中同时实现Framed routing功能，确保不具备5G通信能力的终端也能够同步实现5G LAN内的终端交互，提高了对于终端的兼容能力，减少了网络信令，提高了部署效率。
在一些实施例中，网络侧系统60的同一个UPF可以支持作为一个或多个VN组的转发网元，如图6中所示的LAN 63和LAN64，其中，LAN 64中可以包括一个或多个第二类终端622，以及一个或多个CPE612，每个CPE挂载有一个或多个第一类终端6121。网络侧系统60中的UPF网元还可以根据终端所属的DNN或切片确定终端归属的VN组，允许同一个VN组内的终端间通过UPF通信，不允许不同的VN组内的终端间通信需要通过DN的交换设备进行转发。
这样的通信系统能够支持同一个UPF网元为多个LAN提供消息转发服务，实现不同VN组间终端的隔离，提高信息安全性。
在一些实施例中，本公开的通信系统可以应用于企业客户的局域网组建中，例如企业网络中存在两个互相隔离的网络环境(办公网络和生产网络)，分别给两个网络环境中的终端或CPE签约不同的DNN或切片，为不同的DNN或切片分配不同的IP地址段。同时，通过UPF的AC模块为对应的CPE配置Framed routing，在UPF本地生效的同时，利用CPE建立的PDU会话向CPE下发配置信息。UPF根据5G终端 获取的IP地址、CPE对应的Framed routing地址段配置相应的VN组，同一个DNN/切片下的终端在同一个VN组内，同一个组内的终端可以互相通信，不同VN组的终端相互隔离。
这样的通信系统能够满足企业级客户多局域网组建需求，使的各种终端均能够支持基于5G LAN的交互能力，有利于推广应用；实现不同VN组间终端的隔离，提高信息安全性；提高了5G LAN的部署效率，也提高了配置管理的便捷度。
本公开网络设备的一个实施例的结构示意图如图7所示。网络设备可以为UPF网元、CPE等，包括存储器701和处理器702。其中：存储器701可以是磁盘、闪存或其它任何非易失性存储介质。存储器用于存储上文中局域网生成方法的对应实施例中由对应的网元执行的指令。处理器702耦接至存储器701，可以作为一个或多个集成电路来实施，例如微处理器或微控制器。该处理器702用于执行存储器中存储的指令，能够提高5G LAN的配置效率。
在一个实施例中，还可以如图8所示，网络设备800包括存储器801和处理器802。处理器802通过BUS总线803耦合至存储器801。该网络设备800还可以通过存储接口804连接至外部存储装置805以便调用外部数据，还可以通过网络接口806连接至网络或者另外一台计算机系统(未标出)。此处不再进行详细介绍。
在该实施例中，通过存储器存储数据指令，再通过处理器处理上述指令，能够提高5G LAN的配置效率。
在另一个实施例中，一种计算机可读存储介质，其上存储有计算机程序指令，该指令被处理器执行时实现局域网生成方法对应实施例中的方法的步骤。本领域内的技术人员应明白，本公开的实施例可提供为方法、装置、或计算机程序产品。因此，本公开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，本公开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非瞬时性存储介质(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。
本公开是参照根据本公开实施例的方法、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。
至此，已经详细描述了本公开。为了避免遮蔽本公开的构思，没有描述本领域所公知的一些细节。本领域技术人员根据上面的描述，完全可以明白如何实施这里公开的技术方案。
可能以许多方式来实现本公开的方法以及装置。例如，可通过软件、硬件、固件或者软件、硬件、固件的任何组合来实现本公开的方法以及装置。用于所述方法的步骤的上述顺序仅是为了进行说明，本公开的方法的步骤不限于以上具体描述的顺序，除非以其它方式特别说明。此外，在一些实施例中，还可将本公开实施为记录在记录介质中的程序，这些程序包括用于实现根据本公开的方法的机器可读指令。因而，本公开还覆盖存储用于执行根据本公开的方法的程序的记录介质。
最后应当说明的是：以上实施例仅用以说明本公开的技术方案而非对其限制；尽管参照较佳实施例对本公开进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本公开的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本公开技术方案的精神，其均应涵盖在本公开请求保护的技术方案范围当中。

Claims (17)

  1. 一种局域网生成方法，包括：
    用户面功能UPF网元获取来自会话管理功能SMF网元的用户面转发规则和用户标识；
    根据所述用户标识配置帧路由Framed Routing功能，生成Framed Routing转发表；
    根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置局域网LAN内的第一类终端基于所述Framed Routing IP地址段中地址的转发规则，以便所述第一类终端互相之间通过所述UPF网元进行LAN内信息交互，其中，所述第一类终端为挂载在客户前置设备CPE的终端；和
    所述UPF网元向所述CPE发送第一配置信息。
  2. 根据权利要求1所述的局域网生成方法，还包括：
    所述UPF网元根据网络侧要求的用户标识对应的第五代移动通信技术5G局域网LAN网际互连协议IP地址段，配置LAN内的第二类终端间基于所述5G LAN IP地址段中地址的转发规则，以便所述第二类终端间通过所述UPF网元进行LAN内信息交互；和
    所述UPF网元向所述第二类终端发送第二配置信息，所述第二配置信息中包括分配给对应终端的地址。
  3. 根据权利要求2所述的局域网生成方法，其中，所述根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端基于所述Framed Routing IP地址段中地址的转发规则包括：
    根据网络侧要求的用户标识对应的所述5G LAN IP地址段和Framed Routing IP地址段，配置LAN内的第一类终端基于所述Framed Routing IP地址段中地址的转发规则，以便所述第一类终端互相之间以及第二类终端与第一类终端之间通过所述UPF网元进行LAN内信息交互。
  4. 根据权利要求1所述的局域网生成方法，其中，所述第一配置信息中包括分配给所述CPE的地址，和分配给挂载在所述CPE的所述第一类终端的地址。
  5. 根据权利要求1所述的局域网生成方法，其中，所述UPF网元向所述CPE发 送第一配置信息包括：
    在完成协议数据单元PDU会话建立后，当所述CPE通过所述PDU会话访问所述UPF网元时，所述UPF网元向所述CPE发送所述第一配置信息。
  6. 根据权利要求1所述的局域网生成方法，其中，
    所述UPF网元根据所述用户标识配置Framed Routing功能，生成Framed Routing转发表包括：所述UPF根据所述用户标识触发所述UPF中的接入点控制AC模块配置Framed Routing信息，所述AC模块生成Framed Routing转发表；
    所述根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置LAN内的第一类终端基于所述Framed Routing IP地址段中地址的转发规则包括：所述AC模块根据网络侧要求的用户标识对应的所述5G LAN IP地址段，配置LAN内的第一类终端间基于所述Framed Routing IP地址段中地址的转发规则；
    所述UPF网元向所述CPE发送第一配置信息包括：在完成PDU会话建立后，所述AC模块通过自身的通信地址向所述CPE发送所述第一配置信息。
  7. 根据权利要求1所述的局域网生成方法，还包括：
    所述UPF网元根据终端所属的DNN或切片确定所述第一类终端归属的虚拟网络VN组，其中，同一个DNN或切片内的所述第一类终端在同一个VN组内，同一个所述VN组内的终端间通过所述UPF通信，不同的VN组的终端间相互隔离。
  8. 根据权利要求2所述的局域网生成方法，还包括：
    所述UPF网元根据终端所属的DNN或切片确定所述第二类终端归属的虚拟网络VN组，其中，同一个DNN或切片内的所述第一类终端和所述第二类终端在同一个VN组内，同一个所述VN组内的终端间通过所述UPF通信，不同的VN组的终端间相互隔离。
  9. 根据权利要求1～8中任意一项所述的局域网生成方法，还包括：
    当用户终端发起业务请求时，认证管理功能AMF网元根据用户信息选择所述SMF网元，并向所述SMF网元发送所述用户信息；
    所述SMF网元根据所述用户信息查询用户的签约信息；和
    所述SMF网元向所述UPF网元发送所述用户面转发规则和所述用户标识。
  10. 根据权利要求9所述的局域网生成方法，其中，
    所述AMF网元根据用户信息选择所述SMF网元包括：所述AMF网元根据用户 信息确定选择与所述UPF网元具有连接关系的所述SMF网元；
    所述SMF网元根据所述用户信息查询用户的签约信息包括：所述SMF网元向所述UDM网元或AAA网元发起查询请求，获取用户对应的Framed Routing信息。
  11. 根据权利要求1所述的局域网生成方法，还包括：
    所述CPE根据来自所述UPF的所述第一配置信息，配置自身的地址和挂载的终端的地址。
  12. 一种用户面功能网元，包括：
    指令获取单元，被配置为获取来自会话管理功能SMF网元的用户面转发规则和用户标识；和
    接入点控制AC模块，被配置为：
    根据所述用户标识配置帧路由Framed Routing功能，生成Framed Routing转发表；
    根据网络侧要求的用户标识对应的Framed Routing IP地址段，配置局域网LAN内的第一类终端基于所述Framed Routing IP地址段中地址的转发规则，以便所述第一类终端互相之间通过所述UPF网元进行LAN内信息交互，其中，所述第一类终端为挂载在客户前置设备CPE的终端。
  13. 根据权利要求12所述的用户面功能网元，还包括：
    地址配置单元，被配置为根据网络侧要求的用户标识对应的第五代移动通信技术5G局域网LAN网际互连协议IP地址段，配置LAN内的第二类终端间基于所述5G LAN IP地址段中地址的转发规则，以便所述第二类终端间通过所述UPF网元进行LAN内信息交互；和
    发送单元，被配置为向所述第二类终端发送第二配置信息，所述第二配置信息中包括分配给对应终端的地址。
  14. 一种网络侧系统，包括：
    用户面功能UPF网元，被配置为执行权利要求1～8任意一项所述的方法；
    认证管理功能AMF网元，被配置为当用户终端发起业务请求时，根据用户信息选择会话管理功能SMF网元，并向所述SMF网元发送所述用户信息；和
    所述SMF网元，被配置为根据所述用户信息查询用户的签约信息，并向所述UPF网元发送所述用户面转发规则和所述用户标识。
  15. 一种通信系统，包括：
    权利要求14所述的网络侧系统；和
    客户前置设备CPE，被配置为根据来自用户面功能UPF的第一配置信息，配置自身的地址和挂载的终端的地址。
  16. 一种网络设备，包括：
    存储器；以及
    耦接至所述存储器的处理器，所述处理器被配置为基于存储在所述存储器的指令执行如权利要求1至11任一项所述的方法。
  17. 一种非瞬时性计算机可读存储介质，其上存储有计算机程序指令，该指令被处理器执行时实现权利要求1至11任意一项所述的方法的步骤。
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