WO2008141504A1 - Procédé de mise à jour de localisation pour un terminal en mode veille après un transfert entre points d'accès sans fil - Google Patents

Procédé de mise à jour de localisation pour un terminal en mode veille après un transfert entre points d'accès sans fil Download PDF

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Publication number
WO2008141504A1
WO2008141504A1 PCT/CN2007/003901 CN2007003901W WO2008141504A1 WO 2008141504 A1 WO2008141504 A1 WO 2008141504A1 CN 2007003901 W CN2007003901 W CN 2007003901W WO 2008141504 A1 WO2008141504 A1 WO 2008141504A1
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WO
WIPO (PCT)
Prior art keywords
control point
wireless control
network node
terminal
wireless network
Prior art date
Application number
PCT/CN2007/003901
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English (en)
Chinese (zh)
Inventor
Na Zhou
Xiaoying Feng
Xiaowu Zhao
Xiuli Xu
Rajesh Bhalla
Hao Yang
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Publication of WO2008141504A1 publication Critical patent/WO2008141504A1/fr

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Classifications

    • 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
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present invention relates to a method for implementing location update of an idle terminal after moving across a wireless control point in a wireless communication network.
  • the terminal In order to ensure that the network side can successfully page the terminal in the idle state, the terminal needs to periodically inform the corresponding network node of its location information, and the network node will update and save the terminal location, so that when the network side is in the terminal When the paging is initiated, the current location of the terminal can be obtained, and finally the establishment of the session between the terminal and the wireless network and the transmission of related data are realized.
  • the location update operation is performed by the wireless network node, the wireless control point, and the access server, and performs the function of registering and updating the location of the idle terminal (that is, the terminal in the idle state).
  • FIG. 1 an architecture reference model diagram for implementing packet data user access for an existing network.
  • the wireless network node 11 is responsible for interacting with the access server 13 for media message, data link maintenance and control.
  • the signaling radio control point 12 is responsible for functions such as session storage, paging and location management, idle state management, and access authentication.
  • Step 201 Perform data flow interaction between the terminal, the source wireless network node, and the access server.
  • Step 202 The terminal enters an idle state.
  • Step 203 After the terminal moves to the new routing area, the terminal initiates a location update operation.
  • the target wireless control point saves current user location information;
  • Step 206 The target wireless control point requests user related information from the source wireless control point.
  • Step 207 The source wireless control point returns the requested user information to the target wireless control point.
  • Step 208 The target wireless control point performs bearer information interaction with the access server.
  • Step 209 The target wireless control point returns a registration result to the target wireless network node.
  • Step 210 The target wireless network node forwards the registration result to terminal.
  • the downlink data of the paging is cached in the access server. It can be seen from the above process that the location of the new wireless control point is transmitted by the new wireless control point to the access server by sending a bearer setup notification message. Step 208, does not pass through the wireless network node.
  • the flexible selection of data cache points in the prior art has become a problem to be solved. For example, in the case of non-handover, the downlink data is buffered in the wireless network node (this can ensure that the user gets fast paging performance), and when switching across the wireless network node, the downlink data can be cached to the access server, and now The process shown in Figure 2 cannot implement this type of scenario.
  • Step 301 When the location is updated, the data flow interaction between the terminal, the wireless network node, and the access server is performed;
  • Step 302 The terminal enters an idle state.
  • Step 303 The terminal moves to trigger a location update operation.
  • Step 304 The terminal initiates a registration request to the wireless network node where the terminal is located, and carries the session identifier and the user identifier.
  • Step 305 The wireless network node forwards a registration request message to the wireless control point, and carries the session identifier and the user identifier, where the wireless control point saves the current user location information.
  • Step 306 The wireless control point determines, according to the session identifier, whether the terminal occurs across a wireless network. The switching of the node, if the wireless network node displayed by the session identifier is the same as the currently connected wireless network node, it is considered that the terminal does not move, and the registration result is returned to the wireless network node;
  • Step 307 The wireless network node forwards the registration result to the terminal.
  • Step 308 when paging, the downlink data of the user reaches the access server;
  • Step 309 the access server forwards data to a wireless network node.
  • Step 310 The wireless network node sends a paging request to a wireless control point.
  • Step 311 The wireless control point sends a paging broadcast to all wireless network nodes in a location range where the terminal is located.
  • Step 312 After the wireless network node pages the user, establish a session between the wireless network node and the terminal.
  • Step 313 Perform data flow interaction between the wireless network node and the terminal.
  • Step 401 When the location is updated, the terminal, the source wireless network node, and the access server perform data stream interaction;
  • Step 402 The terminal enters an idle state.
  • Step 403 The terminal moves to trigger a location update operation.
  • Step 404 The terminal initiates a registration request to the wireless network node where the terminal is located, and carries the session identifier and the user identifier.
  • Step 405 The wireless network node forwards a registration request message to the wireless control point, and carries the session identifier and the user identifier.
  • the wireless control point saves the current user location information.
  • Step 406 The wireless control point determines, according to the session identifier, whether the terminal has a handover across the wireless network node. If the wireless network node displayed by the session identifier is different from the currently connected wireless network node, the terminal is considered to have moved to the new wireless network node. And notifying the source wireless network node that the terminal has moved; Step 407, the source wireless network node determines, according to the policy, whether the access server is configured to cache data sent to the user; wherein, the wireless network node determines that the policy may be a connection state. with The target wireless network node address, if the connection is not fully established, does not need to notify the access server of the data cache;
  • Step 408 The wireless control point sends a registration result to the target wireless network node.
  • Step 409 The target wireless network node forwards the registration result to the terminal.
  • Step 410 When paging, the downlink data of the user reaches the access server.
  • Step 411 The access server sends a paging request to a source wireless network node.
  • Step 412 The source wireless network node sends a paging request to a wireless control point.
  • Step 413 The wireless control point sends a paging broadcast to all wireless network nodes in a location range where the terminal is located;
  • Step 414 After the target wireless network node pages the user, establish a session between the target wireless network node and the terminal, and establish a load between the target wireless network node and the access server. Step 415, the access server and Data flow interaction between the terminals.
  • the downlink data is buffered into the access server.
  • the access server needs to know whether the data should be cached, because the notification of the data cache is related to the data link, and the wireless network in the network.
  • the node maintains and manages the data link information, and has sufficient information to determine whether to send a data cache notification to the access server (for example, in a semi-connected state, it may not need to send a data cache notification, which can reduce the processing load of the access server) . Therefore, the cache notification (step 407) needs to be initiated by the source wireless network node and should not be the responsibility of the wireless control point.
  • the technical problem to be solved by the present invention is to provide a method for implementing location update of an idle terminal after moving across a wireless control point, to solve the problem that the idle terminal of the wireless communication network performs location update after moving across the wireless control point.
  • the present invention provides a method for implementing location update of an idle terminal after moving across a wireless control point, including the following steps:
  • the idle terminal When the idle terminal location update operation is triggered, the idle terminal initiates a registration request to the target wireless control point via the target wireless network node, where the registration request carries session identification information;
  • the target wireless control point determines, according to the session identification information carried in the registration request, whether the terminal has switched across the wireless control point;
  • the target wireless control point notifies the source wireless control point that the terminal has moved.
  • the method of the present invention further comprising:
  • the source wireless control point notifies the source wireless network node that the terminal has moved and carries the target wireless network node address
  • the source wireless network node determines, according to the preset policy, whether to notify the access server to cache the data, and if it is determined that the notification is required, the source wireless network node sends a notification of the data cache to the access server, and carries the target wireless network node address. .
  • the preset policy in step (5) determines that the source wireless network node determines according to the network connection status and the target wireless node address, and if the connection is completely established, or the target wireless network node address changes, the source wireless network The node sends a notification of the data cache to the access server and carries the target wireless network node address.
  • step (1) further comprises:
  • the target wireless control point saves location information of the current idle terminal.
  • step (2) comprises:
  • the target wireless control point receives a registration request carrying session identification information
  • the target wireless control point determines whether the session identification information in the registration request is The node is allocated to determine whether the terminal has a handover across the wireless control point. If it is not the session identifier assigned by the node, it is determined that the terminal has switched across the wireless control point.
  • step (1) wherein the idle terminal location update operation in step (1) is triggered to be triggered by triggering or changing a paging zone by a timer.
  • step (3) further comprises:
  • the target wireless control point requests user related information from the source wireless control point, and the source wireless control point returns the requested user related information to the target wireless control point.
  • the user related information includes: user session information and authentication information; and the usage protocol of the user related information is a text transmission protocol.
  • the method of the present invention can effectively realize that when the wireless control point saves the terminal location information, the idle terminal updates the location information after moving between the wireless control points, which can meet the requirement of flexibly configuring the data cache point. problem.
  • FIG. 1 is a structural reference model diagram of a network implementation of packet data user access in the prior art of the present invention
  • FIG. 2 is a simplified flow chart of location update in a wireless communication network in the prior art of the present invention
  • FIG. 3 is a flow chart of prior art data buffering in a wireless network node according to the background art of the present invention
  • FIG. 5 is a flowchart of updating an end position of a terminal in an idle state after moving across a wireless control point in a wireless communication network according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a process for a terminal to page a user after a terminal in an idle state moves after moving across a wireless control point in a wireless communication network according to an embodiment of the present invention.
  • the embodiment of the present invention provides a method for performing location update after an idle terminal moves across a wireless control point in a wireless communication network (including a next-generation evolved network), which can provide users with faster and more convenient location registration performance.
  • the method includes the following steps:
  • the idle terminal location registration request message requests the registration of the location information by the target wireless network node to the target wireless control node, where the target wireless control point saves the current user location information; (3) the target wireless control point passes the registration
  • the session identifier in the request message determines whether the terminal has a handover across the wireless control point. If the session identifier is not allocated by the local node, the terminal is considered to have moved across the wireless control point, and the source wireless control point user is notified that the user has moved. And requesting related information of the user; the source wireless control point returns the requested user related information to the target wireless control point;
  • the source radio control point notifies the source radio network node that the terminal has moved and carries the address of the target radio network node
  • the source wireless network node determines, according to the policy, whether to notify the access server to cache data sent to the terminal; if the notification needs to be sent, carries the address of the target wireless network node;
  • the registration request may also be triggered by a timer; wherein, in step (5), the wireless network node determining policy may be a connection state and an address of a target wireless network node, if the connection is not If the address of the target wireless network node is completely established, or the address of the target wireless network node is unchanged, there is no need to notify the access server to perform data caching; if the connection is completely established, or the address of the target wireless network node changes, the access server needs to be notified of data caching. .
  • Step 501 The terminal and the source Data stream interaction between the wireless network node and the access server;
  • Step 502 The terminal enters an idle state.
  • Step 503 The terminal moves to trigger a location update operation, where the trigger location update operation mainly refers to a judgment trigger triggered by a change of a paging zone (ZONE) after the idle terminal moves to the target wireless control point, that is, a paging zone change Afterwards, the terminal determines and initiates the request by means of the wireless side (for example, interaction between the terminal and the network); further, the location update operation may also be triggered by a timer;
  • the trigger location update operation mainly refers to a judgment trigger triggered by a change of a paging zone (ZONE) after the idle terminal moves to the target wireless control point, that is, a paging zone change
  • the terminal determines and initiates the request by means of the wireless side (for example, interaction between the terminal and the network); further, the location update operation may also be triggered by a timer;
  • Step 504 The terminal sends a registration request to the wireless network node (ie, the target wireless network node), where the registration request carries the session identifier and the user identifier.
  • the wireless network node ie, the target wireless network node
  • Step 505 The target wireless network node forwards a registration request carrying a session identifier and a user identifier to the target wireless control point, where the target wireless control point saves current user location information.
  • Step 506 The target wireless control point determines whether the terminal has switched over the wireless control point by using the session identification information in the registration request message. For example, if the session identifier is not allocated by the local node, the terminal is considered to have cross-wireless control. Point-to-ground mobile), and notify the source wireless control point user that the handover has been performed, and request related information of the user, such as authentication information and session information; further, the target wireless control point may know the location of the source wireless control point through the session identifier. Further, the protocol that the target wireless control point requests the source wireless control point to use the user related information may be a text transmission protocol;
  • Step 507 The source wireless control point returns the requested user related information to the target wireless control point.
  • the protocol used by the source wireless control point to respond to the user related information to the target wireless control point may be a text transmission protocol.
  • Step 508 The source wireless control point notifies the source wireless network node that the terminal has moved, and carries the address of the target wireless network node.
  • Step 509 The source wireless network node finds that it needs to notify the access server to perform data caching, and then sends a message to the access server, so that when the downlink data arrives at the access server, the access service
  • the server caches the data; in addition, the message carries the address information of the target wireless network node, so as to enable the access server to notify the target wireless network node to make a paging request when paging;
  • the source wireless network node determines whether it is necessary to notify the access server to perform data caching according to the connection state and the target wireless network node address. If the connection is not fully established, or the target wireless network node address does not change, the source wireless The network node does not need to send a notification of the data cache to the access server; otherwise, the notification;
  • Step 510 The target wireless control point returns a registration result to the target wireless network node.
  • Step 511 The target wireless network node forwards the registration result to the terminal.
  • step 507 and step 508 can be performed simultaneously.
  • FIG. 6 is a flowchart illustrating a process of paging a user after a terminal in an idle state is moved in a wireless communication network in a preferred manner according to the embodiment of the present invention shown in FIG. The specific steps are as follows:
  • Step 601 The downlink data of the user reaches the access server.
  • Step 602 The access server sends a paging request to the target wireless network node.
  • Step 603 The target wireless network node sends a paging request to the target wireless control point.
  • Step 604 The target wireless control point is sent to the terminal All radio network nodes in the location range send paging broadcasts;
  • Step 605 After the target wireless network node pages the user, establish a session between the target wireless network node and the terminal, and establish a bearer between the target wireless network node and the access server. Step 606, the AJ service is performed. The device interacts with the terminal for data flow.
  • the invention provides a way for the user to perform location update after moving over the wireless control point on the basis of considering the paging performance of the wireless communication network, and transmits the target wireless control to the access server through the source wireless control point and the source wireless network node.
  • the data cache sent to the incoming server is responsible for the wireless network node responsible for link maintenance and management. From the practical application point of view, the data flexible cache can be satisfied.
  • the invention realizes a method for updating the location of the idle terminal after moving across the wireless control point in the wireless communication network under the condition that the existing system has the least modification and influence, and can meet the requirement of flexible data buffering.
  • the location update procedure in the above embodiment may be applied to other systems adopting the same method as mentioned in the background art in addition to the wireless communication system.
  • the messages used may not necessarily be the same, but in the process The logical relationship is the same.
  • INDUSTRIAL APPLICABILITY A method for performing location update of an idle terminal after moving across a wireless control point in the present invention is applicable to the field of communication technologies, and is particularly suitable for use in a next-generation mobile communication network for realizing location update and data cache after terminal movement. The problem provides a good solution. In the case where the wireless control point stores the terminal location information, the idle terminal updates the location information after the wireless control and the inter-movement, which can meet the requirement of the flexible configuration data cache point.

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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 de mise à jour de localisation pour un terminal en mode veille, après un transfert entre points d'accès sans fil dans un réseau de communication sans fil. Après qu'un terminal en mode veille est entré dans la zone de gestion couverte par un nouveau point d'accès sans fil, une demande d'enregistrement du terminal en mode veille est déclenchée. Le message de demande requiert l'enregistrement d'informations de localisation auprès du point d'accès sans fil de destination, via un nœud de réseau sans fil de destination. Le point d'accès sans fil de destination stocke les informations de localisation actuelles de l'utilisateur et détermine au moyen d'un ID de session contenu dans le message de demande d'enregistrement si le terminal a effectué un transfert entre points d'accès sans fil. Si le terminal a effectué un transfert entre points d'accès sans fil, le point d'accès sans fil source est informé que l'utilisateur s'est déplacé et les informations utilisateur correspondantes sont demandées.En outre, le nœud de réseau sans fil source informe le serveur d'accès en mettant en cache les données envoyées au terminal après que l'adresse du nœud de réseau sans fil de destination a été envoyée au nœud de réseau sans source via le point d'accès sans fil source.
PCT/CN2007/003901 2007-05-24 2007-12-29 Procédé de mise à jour de localisation pour un terminal en mode veille après un transfert entre points d'accès sans fil WO2008141504A1 (fr)

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CN2007101052323A CN101312571B (zh) 2007-05-24 2007-05-24 空闲终端在跨无线控制点移动后进行位置更新的方法
CN200710105232.3 2007-05-24

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EP3419351A4 (fr) * 2016-02-17 2019-08-14 LG Electronics Inc. -1- Procédé d'émission/réception de message associé à l'enregistrement de position dans un système de communication sans fil et appareil approprié

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CN105848223A (zh) * 2016-03-02 2016-08-10 深圳市金立通信设备有限公司 一种网络连接的控制方法及设备
CN108076496B (zh) * 2016-11-16 2022-06-28 北京新岸线移动多媒体技术有限公司 无线网络中实现跨小区切换的方法、系统及装置
CN108076495B (zh) * 2016-11-16 2022-03-25 北京新岸线移动多媒体技术有限公司 无线网络中实现跨小区切换的方法、系统及装置

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CN101312571B (zh) 2011-04-20

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