WO2013067744A1 - Procédé et système de sélection de passerelle de desserte pour groupe de terminaux - Google Patents

Procédé et système de sélection de passerelle de desserte pour groupe de terminaux Download PDF

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Publication number
WO2013067744A1
WO2013067744A1 PCT/CN2011/084941 CN2011084941W WO2013067744A1 WO 2013067744 A1 WO2013067744 A1 WO 2013067744A1 CN 2011084941 W CN2011084941 W CN 2011084941W WO 2013067744 A1 WO2013067744 A1 WO 2013067744A1
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Prior art keywords
terminal
group
hss
group representative
representative
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PCT/CN2011/084941
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English (en)
Chinese (zh)
Inventor
杨坤
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中兴通讯股份有限公司
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Publication of WO2013067744A1 publication Critical patent/WO2013067744A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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

Definitions

  • the present invention relates to a machine type communication (MTC) technology, and more particularly to a method and system for selecting a service gateway (S-GW) of a terminal group.
  • MTC machine type communication
  • S-GW service gateway
  • FIG. 1 is a schematic structural diagram of a conventional cellular wireless communication system.
  • a cellular wireless communication system is mainly composed of a core network (CN, Core Network), an access network (RAN, Radio Access Network), and a terminal.
  • the CN is responsible for non-access layer transactions, such as terminal location update, etc., and is an anchor point of the user plane.
  • the RAN includes: a base station, or a base station and a base station control, and the RAN is responsible for access layer transactions, such as: management of radio resources, etc., the base stations may have physical or logical connections according to actual conditions, as shown in FIG.
  • the connection between the base stations 2, the connection between the base station 1 and the base station 3, and each base station can be connected to more than one CN node.
  • a terminal that is, a User Equipment (UE), refers to various devices that can communicate with a cellular wireless communication network, such as a mobile phone or a laptop.
  • UE User Equipment
  • MTC business refers to: The business of communication between machines. In the MTC service, no human participation is required, all communication is done by the machine autonomously, data is obtained through a sensor or the like, and then the data is reported to the mobile communication network through the communication module, and the public data is accessed through the mobile communication network. In the net.
  • MTC services can include: logistics monitoring, security monitoring, telemedicine testing, and remote meter reading applications.
  • the data of the MTC service is managed by the mobile operator or a specific server of the dedicated MTC operator and can be viewed by the MTC user or the MTC manager. In this process, the device that acquires the data required by the service is the terminal.
  • the MTC service introduces some features that are different from traditional mobile communications, such as: Group Characteristics, etc.
  • the carrier network can optimize the amount of messages for the terminals that need to receive the same message based on the group.
  • the MTC user subscribes to a terminal group, the operator sets and activates the group feature in the subscription information of each terminal of the terminal group, and stores the set subscription information of each terminal in the user home server (HSS, Home). Subscriber Server).
  • HSS is an entity in the telecommunication network responsible for storing identity information, authentication information, authorization information, and the like of the user or the terminal device. Depending on the situation, the HSS can be used to store the identity information of the user and the binding information of the user and the terminal device.
  • the HSS only the identity information of the user can be saved, or only the identity information of the terminal device can be saved.
  • the binding information of the user and the terminal device may be saved by the gateway.
  • the HSS is also responsible for the user's subscription database, as well as the user's authentication and authorization.
  • the service platform can query the subscription information of the user or the terminal device from the HSS.
  • the Mobility Management Entity obtains the subscription information of the terminal from the HSS and saves it locally.
  • the MME is an entity in the core network for managing user terminal control signaling, and is responsible for access control, including: authentication control, identity assignment, user identity and device identity insurance, signaling plane encryption, and evolved Node B. Consistency protection between (eNB, evolved Node B), security parameters between QoS and Quality of Service (QoS) parameters between 2G/3G and Evolved Packet System (EPS), access admission control Determining whether the requested resources can be obtained and reserving these resources, lawful interception, mobility management, session management, related operations on EPS bearers, and network element selection.
  • the identifier assignment refers to an assignment of a Globally Unique Temporary Identity (GUTI) and a Tracking Area Identity List (TAI List), and the mobility management may specifically implement Tracking and recording of the current location of the UE.
  • GUI Globally Unique Temporary Identity
  • TAI List Tracking Area Identity List
  • the service gateway (S-GW, Serving Gateway) is located at the user plane. Its main functions are session management, routing and data forwarding, quality of service QoS control, charging, and storage of information. Wait.
  • the Packet Data Network Gateway (P-GW, PDN Gateway) is located at the user plane.
  • the main functions include IP address allocation, session management, PCRF selection, routing and data forwarding, QoS control, accounting, policy and charging execution.
  • the network is required to control the S-GW selection of the terminal group, that is, according to the group information of the subscription, the network should be able to provide a mechanism for the terminal group to select the same S-GW.
  • the network in the prior art, there is no technical solution for the network to control the S-GW selection of the terminal group. Summary of the invention
  • the main purpose of the present invention is to provide a method and system for selecting a serving gateway S-GW of a terminal group, which is used to solve the technical problem that the S-GW selection of the terminal group cannot be effectively controlled in the MTC service. .
  • the present invention provides a method for selecting a serving gateway S-GW of a terminal group. As shown in FIG. 2, the method includes:
  • Step 1 storing the terminal group identifier as the subscription data of the terminal in the user home server HSS;
  • Step 2 The mobility management entity, after receiving the attach request sent by the terminal, requests the subscription data from the HSS.
  • Step 3 After receiving the subscription data request of the MME, the HSS determines whether the current terminal is a group representative terminal, the group representative terminal is designated by the network as the terminal group, or the machine type communication MTC user and the operator are the terminal group when signing the contract. Designation
  • Step 4 If the current terminal is a group representative terminal, the MME selects an S-GW for the terminal through the serving gateway selection function, and notifies the selected S-GW to the HSS as a group representative S-GW of the terminal group where the terminal is located; Step 5: If the current terminal is a non-group representative terminal, the HSS provides the MME with the group representative S-GW identifier of the terminal group where the terminal is located;
  • Step 6 The MME requests the group representative S-GW to establish a default bearer for the current terminal. Further, in the case that the group representative terminal is specified by the network as the terminal group, the method for determining whether the current terminal is a group representative terminal is:
  • the HSS searches for the subscription information of the terminal in the locally stored information according to the terminal identifier of the current terminal, where the subscription information includes the identifier of the terminal group to which the terminal belongs;
  • the HSS determines, according to the subscription information obtained by the query, whether the current terminal is a group representative terminal by a combination of one or more of the following methods:
  • the first terminal connected in the terminal group is used as a group representative terminal
  • the terminal with the best performance in the terminal group is used as the group representative terminal;
  • the terminal with the strongest capability in the terminal group is used as the group representative terminal.
  • the identifier of the terminal is stored locally as the subscription data, and the location confirmation message is updated.
  • the MME selects the serving S-GW for the terminal, identifies the selected S-GW as the group representative S-GW, and associates the group representative
  • the identifier of the S-GW is stored locally as the subscription data of the terminal; then the terminal group management message is sent to the HSS to notify the HSS that the selected group represents the S-GW 0.
  • the terminal group identifier and the designated group representative terminal identifier are stored together as the contract data of the terminal in the HSS,
  • the method for determining whether the current terminal is a group representative terminal is:
  • the HSS searches for the subscription information of the terminal in the locally stored information according to the terminal identifier of the current terminal, where the subscription information includes the identifier of the terminal group to which the terminal belongs and the group representative terminal identifier in the terminal group to which the terminal belongs;
  • the HSS determines, according to the subscription information obtained by the query, whether the current terminal is a group representative terminal.
  • the terminal when the group representative terminal is specified by the MTC user and the operator for the terminal group when signing the contract, when the HSS determines that the current terminal is the group representative terminal, the terminal is provided with the terminal by updating the location confirmation message.
  • the MME After receiving the location confirmation message sent by the HSS, the MME selects the serving S-GW for the terminal, and identifies the selected S-GW as the group representative S-GW, and the group represents the S-GW identifier as The subscription data of the terminal is stored locally; then the terminal group management message is sent to the HSS to notify the HSS that the selected group represents the S-GW.
  • the HSS determines that the current terminal is a non-group representative terminal
  • the HSS provides the MME with the subscription data of the terminal by updating the location confirmation message, where the update location confirmation message carries the terminal group management message to indicate the corresponding MME.
  • the group represents the S-GW.
  • the present invention also provides a serving gateway S-GW selection system of a terminal group. As shown in FIG. 3, the system 300 includes:
  • the storage module 301 is located in the HSS.
  • the module When the group representative terminal is specified by the network as the terminal group, the module is used to store the terminal group identifier as the subscription data; when the group representative terminal is signed by the MTC user and the operator, The module is configured to store the terminal group identifier and the group representative terminal identifier as subscription data when the terminal group is designated;
  • the requesting module 302 is located in the MME, and is configured to, after receiving the attach request sent by the terminal, request the subscription data from the storage module;
  • the determining module 303 is located at the HSS, and is configured to determine, after the HSS receives the subscription data request of the MME, whether the current terminal is a group representative terminal.
  • the first response module 304 is located at the HSS, and is configured to provide the subscription data of the terminal to the MME when determining that the current terminal is a group representative terminal;
  • the serving gateway selection function module 305 is located at the MME, configured to select an S-GW for the terminal according to the subscription data provided by the first response module, and notify the selected S-GW as a group representative S-GW of the terminal group where the terminal is located.
  • the group representative service gateway information module 306 is located at the HSS, and is configured to receive a notification message of the service gateway selection function module, where the save group represents the S-GW identifier;
  • the second response module 307 is located at the HSS, and is configured to: when determining that the current terminal is a non-group representative terminal, obtain a group representative S-GW identifier from the group representative service gateway information module, and provide the terminal where the terminal is located to the bearer establishment request module.
  • the group of groups represents the S-GW identity
  • the bearer setup request module 308 is located at the MME, and is configured to request the S-GW to establish a default bearer for the current terminal.
  • the determining module searches for the subscription information of the terminal locally according to the terminal identifier of the current terminal, and the subscription information obtained according to the query passes the following method.
  • the first terminal connected in the terminal group is used as a group representative terminal
  • the terminal with the best performance in the terminal group is used as the group representative terminal;
  • the terminal with the strongest capability in the terminal group is used as the group representative terminal.
  • the storage module is instructed to store the identifier of the terminal as the subscription data locally;
  • the first response module provides the subscription data of the terminal to the service gateway selection function module by updating a location confirmation message
  • the serving gateway selection function module selects a serving S-GW for the terminal, identifies the selected S-GW as a group representative S-GW, and associates the group with the S-GW.
  • the identity is stored locally as subscription data for the terminal; then the group representative service gateway information module is notified by the transmitting terminal group management message that its selected group represents the S-GW.
  • the determining module stores the information locally according to the terminal identifier of the current terminal.
  • the device searches for the subscription information of the terminal, and determines whether the current terminal is a group representative terminal according to the terminal group identifier and the group representative terminal identification information in the subscription information.
  • the first response module confirms by updating the location.
  • the serving gateway selection function module selects a serving S-GW for the terminal, identifies the selected S-GW as a group representative S-GW, and associates the group with the S-GW.
  • the identity is stored locally as subscription data for the terminal; then the group representative service gateway information module is notified by the transmitting terminal group management message that its selected group represents the S-GW.
  • the second response module provides the bearer establishment request module with the subscription data of the terminal by updating the location confirmation message, where the update location confirmation message is At the same time, a terminal group management message is carried to indicate that the corresponding group represents the S-GW.
  • the network can control the S-GW selection of the terminal group, so that the terminals in the same terminal group select the same S-GW, thereby further making the carrier network based on the group pair needs.
  • the amount of messages of the terminal receiving the same message is optimized.
  • FIG. 1 is a schematic structural diagram of a conventional cellular wireless communication system
  • FIG. 2 is a flowchart of a method for selecting a serving gateway S-GW of a terminal group according to the present invention
  • FIG. 3 is a logical structural diagram of a serving gateway S-GW selection system of a terminal group provided by the present invention. detailed description
  • the basic idea of the present invention is: For a contracted terminal group, the network designates a representative terminal in the terminal group for the terminal group, or the MTC user and the operator set a generation for the terminal group when signing the contract.
  • the selected S-GW is used as the group representative S-GW, and the group representative S-GW information is stored as the subscription data in the HSS.
  • the network selects and groups the representative terminal.
  • the same group of selected S-GWs represents the S-GW as its serving S-GW.
  • Embodiment 1 group representative terminal is specified by the network:
  • Step 101 When the terminal accesses the network, the terminal group user signs the terminal in the group to the terminal with the group feature, and the operator assigns the group identity to the terminal group, and uses the assigned terminal group identifier as the terminal signing.
  • the data is stored in the HSS (Home Subscriber Server).
  • Step 102 After the terminal is powered on, send an attach request to the MME (Mobility Management Entity), where the terminal identifier and the security certificate are included.
  • MME Mobility Management Entity
  • Step 103 After authenticating the terminal identifier and the security certificate, the MME requests the HSS for the subscription data of the terminal by updating the location request message, where the message includes a terminal identifier, such as an IMSI (International Mobile Subscriber Identity).
  • IMSI International Mobile Subscriber Identity
  • Step 104 After receiving the request from the MME, the HSS searches for the subscription information corresponding to the terminal according to the information stored in the terminal, including the group identifier of the terminal, and determines whether the terminal is a group representative terminal designated by the network, for example, The first attached terminal of the terminal group. If yes, continue with step A; otherwise, continue with step B.
  • the method for determining whether the terminal is a group designated by the network to represent the terminal may be a combination of one or more of the following methods: using the first attached terminal in the terminal group as a group representative terminal; and performing optimal performance in the terminal group The terminal acts as a group representative terminal; the terminal with the strongest capability in the terminal group is used as a group representative terminal;
  • the Al and the HSS identify the terminal as a group representative terminal of the terminal group, and store the data locally as the subscription data of the terminal.
  • the HSS provides the MME with the subscription data of the terminal by updating the location confirmation message.
  • the specific implementation may add an identifier to the stored information of the HSS to indicate that the group represents the terminal, such as a group representative terminal identity (GRUEI, Group Representative UE Identity).
  • GRUEI group representative terminal identity
  • the MME After receiving the location confirmation message of the HSS, the MME selects a serving S-GW (Serving Gateway) for the terminal by using a Serving GW Selection Function, and identifies the S-GW as a group representative S-GW. And the subscription data as the terminal is stored locally.
  • a serving S-GW Serving Gateway
  • the MME sends a terminal group management message to the HSS through the signaling on the S6a reference point.
  • the HSS selects the group to represent the S-GW, and the message includes the group representative S-GW identifier (GRSGI, Group Representative Serving Gateway Identity).
  • GRSGI Group Representative Serving Gateway Identity
  • the signaling on the reference point of the S6a may be a stream control transmission protocol (SCTP) signaling, etc.; the S6a reference point refers to a reference point between the HSS and the MME, and is used for the HSS and the Information exchange between MMEs.
  • SCTP stream control transmission protocol
  • the HSS provides the subscription data of the terminal to the MME by updating the location confirmation message, and the message also carries the terminal group management message to indicate that the MME selected group represents the S-GW, wherein the group includes the S-GW identifier, and the group representative Terminal identification.
  • the MME receives the terminal group management message by reading the update location confirmation message, and selects the service S-GW according to the group representative S-GW identifier in the message.
  • Step 105 After selecting the serving S-GW, the MME requests the service S-GW by generating a default bearer request message, that is, the group representative S-GW requests to establish a default bearer for the terminal, where the message includes a P-GW (Packet Data Network Gateway). address.
  • P-GW Packet Data Network Gateway
  • Step 106 After receiving the default bearer request message generated by the MME, the group representative S-GW establishes a new entry in the local EPS bearer list, and sends a default bearer request message to the P according to the P-GW address in the message. -GW, to establish a default bearer for the terminal, the message contains the S-GW address.
  • Step 107 After receiving the default bearer request message generated by the group representative S-GW, the P-GW A new entry is created in the local EPS bearer list, and a new charging ID is generated, and a default bearer response message is sent to the group representative S-GW, where the message includes the P-GW address of the user plane.
  • Step 108 After receiving the default bearer response message sent by the P-GW, the group representative S-GW sends a default bearer response message to the MME, and notifies the MME that the default bearer is established, the message includes the P-GW address, and the user plane S-GW address.
  • Step 109 After confirming that the default bearer is established, the MME sends the attach accepting signaling to the terminal, and the attach accepting signaling includes the subscription feature of the terminal, and the EPS ⁇ I carrying identifier corresponding to the default bearer.
  • Embodiment 2 The group representative terminal is set by the MTC user and the operator to set up):
  • Step 201 When the terminal accesses the network, the terminal group user signs the terminals in the group to the terminal with the group characteristics, and the operator allocates the group identifier to the terminal group, and the MTC user signs the group with the operator to set the group representative terminal, and The assigned terminal group identifier and the set group represent the terminal identifier as the subscription data of the terminal are stored in the HSS.
  • the specific implementation may add an identifier to the storage information of the HSS to indicate that the group represents the terminal, such as a group representative terminal identifier (GRUEI).
  • GRUEI group representative terminal identifier
  • Step 202 After the terminal is powered on, send an attach request to the MME, where the terminal identifier and the security certificate are included.
  • Step 203 After authenticating the terminal identifier and the security certificate, the MME requests the HSS to sign the subscription data by using the update location request message, where the message includes the terminal identifier, such as IMSI.
  • Step 204 After receiving the request from the MME, the HSS searches for the subscription information corresponding to the terminal according to the information stored locally by the terminal identifier, where the subscription information includes the group identifier of the terminal and the group representative terminal identifier, and determines whether the terminal is The group set up by the MTC user and the operator to represent the terminal. If yes, continue with step A; otherwise, continue with step B:
  • the HSS provides the MME with the subscription data of the terminal by updating the location confirmation message.
  • the MME selects the service S-GW for the terminal by using the serving gateway selection function, and identifies the S-GW as the group representative S-GW, and performs the subscription data of the terminal locally. storage.
  • the MME sends a terminal group management message to the HSS through the signaling on the S6a reference point to notify the HSS that the selected group represents the S-GW, and the message includes the group representative S-GW identifier (GRSGI).
  • the signaling on the S6a reference point may be a flow control transmission protocol (SCTP) signaling, etc.; the S6a reference point refers to a reference point between the HSS and the MME, and is used for information between the HSS and the MME. Interaction.
  • SCTP flow control transmission protocol
  • the HSS provides the subscription data of the terminal to the MME by updating the location confirmation message, and the message further carries the terminal group management message to indicate that the selected group of the MME represents the S-GW, and the group includes the S-GW identifier.
  • the MME receives the terminal group management message by reading the update location confirmation message, and selects the service S-GW according to the group representative S-GW identifier in the message.
  • Steps 205 to 209 are the same as steps 105 to 109 in the first embodiment, and are not described here.
  • the present invention enables the network to control the S-GW selection of the terminal group, so that the terminals in the same terminal group select the same S-GW.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un système de sélection de passerelle de desserte pour un groupe de terminaux, destinés à résoudre le problème technique selon lequel, dans un service MTC, la sélection de passerelle de desserte (S-GW) d'un groupe de terminaux ne peut pas être efficacement commandée. La solution consiste à : utiliser un identificateur de groupe de terminaux à titre de données d'abonnement et le stocker dans un HSS ; après avoir reçu une requête de données d'abonnement en provenance d'une MME, déterminer par le HSS si un terminal courant est un terminal représentant de groupe, le terminal représentant de groupe étant désigné par un réseau ou désigné par un utilisateur MTC lors d'un abonnement à un opérateur ; si le terminal courant est un terminal représentant de groupe, alors sélectionner par la MME une passerelle de desserte (S-GW) pour le terminal par une fonction de sélection de passerelle de desserte et utiliser la S-GW sélectionnée à titre de S-GW représentante de groupe et la notifier au HS ; si le terminal courant est un terminal non représentant de groupe, alors fournir par le HSS un identificateur de S-GW représentante de groupe à la MME ; et envoyer par la MME une requête à la S-GW représentante de groupe afin d'établir un support par défaut pour le terminal courant. Au moyen de la présente invention, dans un service MTC à propriétés de groupe, le réseau peut commander la sélection de S-GW d'un groupe de terminaux de telle sorte que les terminaux dans le même groupe de terminaux sélectionnent la même S-GW.
PCT/CN2011/084941 2011-11-08 2011-12-29 Procédé et système de sélection de passerelle de desserte pour groupe de terminaux WO2013067744A1 (fr)

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CN201110350379.5A CN103096433B (zh) 2011-11-08 2011-11-08 一种终端组的服务网关选择方法及系统
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CN105681210A (zh) 2014-11-14 2016-06-15 中兴通讯股份有限公司 组资源更新处理方法、装置、系统及cse
WO2016074455A1 (fr) * 2014-11-14 2016-05-19 中兴通讯股份有限公司 Procédé, dispositif et système de traitement de mise à jour de ressources de groupe, et cse
CN106899923A (zh) * 2015-12-18 2017-06-27 阿尔卡特朗讯 一种用于实现mtc组消息传送的方法与设备
CN110881014B (zh) * 2018-09-05 2021-09-28 普天信息技术有限公司 一种对无线专网的业务进行物理隔离的方法及装置

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