WO2012159519A1 - Procédé et système pour fournir une politique de sélection de réseau d'accès sur la base d'un état de réseau - Google Patents

Procédé et système pour fournir une politique de sélection de réseau d'accès sur la base d'un état de réseau Download PDF

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Publication number
WO2012159519A1
WO2012159519A1 PCT/CN2012/074475 CN2012074475W WO2012159519A1 WO 2012159519 A1 WO2012159519 A1 WO 2012159519A1 CN 2012074475 W CN2012074475 W CN 2012074475W WO 2012159519 A1 WO2012159519 A1 WO 2012159519A1
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WIPO (PCT)
Prior art keywords
network
andsf
load information
management system
network load
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PCT/CN2012/074475
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English (en)
Chinese (zh)
Inventor
芮通
刘国燕
周晓云
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中兴通讯股份有限公司
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Publication of WO2012159519A1 publication Critical patent/WO2012159519A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and system for providing an access network selection policy based on a network state. Background technique
  • EPS 3rd Generation Partnership Project
  • Evolved Packet System Evolved Packet System
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • MME Mobile Management Unit
  • S-GW Serving Gateway
  • P-GW or PDN GW Packet Data Network Gateway
  • HSS Home Subscriber Server
  • PCRF Policy and Charging Rules Function
  • 1 is a schematic diagram of a system architecture of a prior art EPS. As shown in FIG.
  • a mobility management entity is responsible for control planes such as mobility management, non-access stratum signaling processing, and user mobility management context management;
  • the S-GW is an access gateway device connected to the E-UTRAN, and forwards data between the E-UTRAN and the P-GW, and is responsible for buffering paging waiting data;
  • the P-GW is an EPS and packet data network (PDN) , Packet Data Network )
  • PDN packet data network
  • S-GW and P-GW are both core network gateways;
  • PCRF is a policy and charging rule function entity,
  • the receiving interface Rx is connected to the service network protocol (IP, Internet Protocol) to obtain service information.
  • IP Internet Protocol
  • it is connected to the gateway device in the network through the Gx/Gxa/Gxc interface, and is responsible for initiating the establishment of the IP bearer and guaranteeing the service. Data service Quality (QoS), and charge control.
  • IP Internet Protocol
  • the EPS supports interworking with non-3GPP systems, wherein interworking with non-3GPP systems is implemented through an S2a/b/c interface, and the P-GW acts as an anchor between 3GPP and non-3GPP systems.
  • the non-3GPP system is divided into trusted non-3GPP IP access and untrusted non-3GPP IP access. Trusted non-3GPP IP access can be directly connected to the P-GW through the S2a interface; untrusted non-3GPP IP access requires an evolved packet data gateway (ePDG, Evolved Packet Data Gateway) to be connected to the P-GW, ePDG and P- The interface between the GWs is S2b.
  • ePDG evolved packet data gateway
  • the S2c provides user plane-related control and mobility support between the user equipment (UE, User Equipment) and the P-GW.
  • the supported mobility management protocol is dual-stack mobile IPv6 ( DSMHV6, Moblie IPv6 Support for Dual Stack Hosts and Routers).
  • the signal coverage can be selected in the 3GPP network or non-3GPP network access.
  • the UE interacts with the network element access network discovery and selection function (ANDSF, Access Network Discovery and Selection Function) through the S14 interface.
  • the ANDSF is not displayed in the architecture of the EPS core network. As shown in FIG. 2, when the ANDSF interacts with the UE, the ANDSF provides the UE with the policy information of the access network selection.
  • the policy information generally includes: a policy for the UE to select to access a certain wireless network (for example, the 3GPP access mode is superior to In the non-3GPP access mode, the 3GPP access mode is superior to the WLAN access mode.
  • the UE performs the handover policy (for example, the handover from the E-UTRAN to the WLAN is not allowed).
  • the UE determines the access network selection policy from the ANDSF, it determines which network to specifically select when accessing or switching the selection.
  • the access network selection policy provided by the ANDSF is usually based on the operator configuration and is also determined by referring to the subscription information of some UEs.
  • radio resources air interface side resources
  • data congestion is a major problem in actual network operation and maintenance, for example: 3GPP network resource congestion (E-UTRAN access mode air interface side resource shortage), because at this time only according to the operator's Configuration It is static to establish an access network selection policy with the user. If the UE continues to select the ANDSF as the access network after receiving the policy from the ANDSF, the burden on the network will be increased.
  • the main purpose of the embodiments of the present invention is to provide a method and system for providing an access network selection policy based on a network state, which can avoid burdening the ANDSF network.
  • a method for providing an access network selection policy based on a network state comprising: using a network management system and an access network discovery and selection function (ANDSF)
  • ANDSF access network discovery and selection function
  • the interaction provides network load information for the ANDSF, and the ANDSF formulates an access network selection policy for the UE according to the network load information.
  • the network load information specifically includes: cell location information, and/or network load information of the cell.
  • the interaction between the network management system and the ANDSF specifically includes: after the notification is triggered by the timer, or after the ANDSF subscribes to the network management system, the network management system actively provides the network load information to the ANDSF.
  • the interaction between the network management system and the ANDSF specifically includes: requesting, by the ANDSF, the network management system to query the network load information, and the network management system passively provides the network load information to the ANDSF.
  • the requesting, by the ANDSF, the network management system to query the network load information includes: the ANDSF provides the identifier of the UE to the network management system, and queries the network load information of the location where the UE is located.
  • the requesting, by the ANDSF, the querying the network load information to the network management system includes: the ANDSF providing the network identity of the UE to the network management system, and querying the network load information of the cell where the UE is located, where the ANDSF requests the network management system to query the network load information, specifically: The ANDSF provides the identifier of the UE and the cell identifier of the UE to the network management system, and queries the location of the UE and the network load information of the cell where the UE is located.
  • a system for providing an access network selection policy based on a network state where the system includes: a network load information acquisition unit, and an access network selection policy transmission unit;
  • the network load information obtaining unit is configured to exchange network load information with the ANDSF through the network management system;
  • the access network selection policy sending unit is configured to: after the ANDSF establishes an access network selection policy for the UE according to the network load information, send the access network selection policy to the UE.
  • the network load information specifically includes: cell location information, and/or network load information of the cell.
  • the network load information acquiring unit is further configured to send the network load information to the ANDSF by the network management system after the notification is triggered by the timer or the ANDSF subscribes to the network management system.
  • the network load information acquiring unit is further configured to request, by the ANDSF, the network management system to query the network load information, and the network management system passively sends the network load information to the ANDSF, where the network load information acquiring unit is further used for the ANDSF.
  • the ANDSF provides the network management system with the identifier of the UE and/or the cell identifier of the UE, and queries the location of the UE and/or the network load information of the cell where the UE is located;
  • the access network selection policy sending unit is further configured to: after the ANDSF establishes an access network selection policy according to the location of the UE and/or the network load information of the cell where the UE is located, send the access network selection policy to the UE.
  • the embodiment of the present invention provides network load information for the ANDSF through the interaction between the network management system and the ANDSF, and the ANDSF formulates an access network selection policy for the UE according to the network load information.
  • the embodiment of the present invention is a dynamic processing mode for the UE to establish an access network selection policy according to the network load information. Therefore, the existing network only selects an access network selection policy according to the configuration of the operator and the user subscription. Static processing method can avoid adding ANDSF network The burden of the network. DRAWINGS
  • FIG. 1 is a schematic diagram of a system architecture of a prior art EPS
  • FIG. 2 is a schematic diagram of an interaction logic architecture of an ANDSF and a UE in the prior art
  • FIG. 3 is a schematic diagram of a network management system providing network load information for an ANDSF according to an embodiment of the present invention
  • FIG. 4 is a schematic flow chart of a first embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a second embodiment of the present invention.
  • FIG. 6 is a schematic flow chart of a third embodiment of the present invention. detailed description
  • the basic idea of the embodiment of the present invention is: providing network load information for the ANDSF through interaction between the network management system and the ANDSF, and the ANDSF formulates an access network selection policy for the UE according to the network load information.
  • a method for providing an access network selection policy based on a network state which mainly includes the following contents:
  • the network management system such as the NMS network management system, interacts with the ANDSF through a new interface to provide network load information for the ANDSF, and the ANDSF formulates the UE load information according to the network load information.
  • Access network selection policy is an interface between the network management system and the ANDSF.
  • the network load information includes: cell location information, network load information of the cell (for example: idle state).
  • the network management system can actively provide network load information to the ANDSF.
  • the method of the active delivery is as follows: The method of triggering the active delivery by the timer, or the way the ANDSF actively delivers the notification after the notification is subscribed to the network management system.
  • the ANDSF can also query the network management system for network load information.
  • the query method includes: The ANDSF can provide the identifier of the UE to the network management system, and query the network where the UE is located. The network load system returns the network load information of the cell where the UE is located to the ANDSF. Further, the ANDSF can also query the network management system.
  • the query method further includes: The ANDSF may further provide the cell location information (for example, the cell identifier) to the network management system, query the network load information of the cell, and the network management system returns the network load information of the cell to the ANDSF.
  • the above query methods have different options according to the needs of specific operators, which are based on the granularity of the UE and the cell.
  • the NMS network management system provides network load information for the ANDSF through the new interface.
  • the ANDSF can formulate an access network selection policy for the UE according to the network load information.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the UE After the UE is attached to the EPC network, the UE is triggered (for example, the UE is about to switch), the UE needs to obtain an access network selection policy from the network side, and the UE sends a request for accessing the network selection policy to the ANDSF. Since the ANDSF has previously obtained the network load information through interaction with the NMS network management system, the ANDSF formulates an access network selection policy for the UE based on the network load information, and returns the message to the UE. After receiving the access network selection policy, the UE follows the connection. The network selection policy is used to select the access network. As shown in Figure 4, the following steps are included:
  • Step 101 The NMS network management system adopts a timer-triggered active delivery mode, and periodically interacts with the ANDSF to provide network load information to the ANDSF, where the information includes: cell location information (for example: cell identifier), cell load information (for example: busy status).
  • cell location information for example: cell identifier
  • cell load information for example: busy status
  • Step 102 The UE is attached to the network, and the attaching process is based on an existing process, where the IP-CAN refers to a Policy and Charging Execution Function (PCEF) and/or a BBERF.
  • PCEF Policy and Charging Execution Function
  • Step 103 The UE is triggered (for example, the UE is about to initiate handover), and the UE needs to request the network side to acquire the access network selection policy.
  • Step 104 The UE sends a message to the ANDSF, requesting an access network selection policy, and the message packet is included.
  • the UE identifier, the location information of the UE (for example, the cell identifier where the UE is located).
  • Step 105 The ANDSF establishes an access network selection policy for the user based on the network load information of the location where the UE is located.
  • Step 106 The ANDSF returns an access network selection policy to the UE.
  • Step 107 After receiving the access network selection policy, the UE selects the access network according to the access network selection policy.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the UE After the UE is attached to the EPC network, the UE is triggered (for example, the UE is about to switch), the UE needs to obtain an access network selection policy from the network side, and the UE sends a request for accessing the network selection policy to the ANDSF.
  • the ANDSF requests the network load information from the NMS network management system.
  • the request message may include the identifier of the UE and/or the identifier of the cell where the UE is located.
  • the NMS network management system returns the network load information to the ANDSF, and the ANDSF is based on the network load information.
  • the UE formulates an access network selection policy and returns it to the UE. After receiving the access network selection policy, the UE selects the access network according to the access network selection policy. As shown in Figure 5, the following steps are included:
  • Step 201 The UE is attached to the network, and the attached process is based on an existing process, where IP-CAN refers to PCEF and/or BBERF.
  • Step 202 The UE is triggered (for example, the UE is about to initiate handover), and the UE needs to request the network side to acquire the access network selection policy.
  • Step 203 The UE sends a message to the ANDSF to request an access network selection policy, where the message includes: a UE identifier and/or location information of the UE (for example, a cell identifier where the UE is located).
  • Step 204 If the ANDSF does not save the user information locally, or the ANDSF finds that the locally saved information is invalid (time expired), the ANDSF is triggered to request the network load condition from the NMS network management system, where the message may include: the identifier of the UE and/or the UE.
  • the location information (for example, the location of the UE, the area identifier), the ANDSF may also subscribe to the event notification of the change of the network load status of the cell to the NMS network management system.
  • Step 205 The NMS network management system returns a response to the ANDSF, and provides network load information, where the information includes: cell load information (for example, a busy state).
  • Step 206 The ANDSF formulates an access network selection policy for the user based on the network load information of the location where the UE is located.
  • Step 207 The ANDSF returns an access network selection policy to the UE.
  • Step 208 After receiving the access network selection policy, the UE selects the access network according to the access network selection policy.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the NMS network management system After the UE is attached to the EPC network, the NMS network management system notifies the ANDSF of the network load condition, and the notification may be the timing notification in step 101 of the first embodiment, or the subscription notification in step 204 of the second embodiment (for example: ANDSF forward direction)
  • the NMS network management system subscribes to the notification that the network load status of a cell changes, the NMS network management system senses the network load status change of the cell, and needs to notify the ANDSF.
  • the ANDSF formulates an access network selection policy for the UE based on the network load information, if the UE The ANDSF has established a session, and the ANDSF sends a policy to the UE through the session.
  • the ANDSF can be managed by the OMA DM Push (Open Mobile Architecture Device Management) mode. Sending to the UE, after receiving the access network selection policy, the UE selects the access network according to the access network selection policy. As shown in Figure 6, the following steps are included:
  • Step 301 The UE is attached to the network, and the attaching process is based on an existing process, where IP-CAN refers to PCEF and/or BBERF.
  • Step 302 The NMS network management system notifies the ANDSF of the network load information, and the notification may be the timing notification in step 101 of the first embodiment, or the subscription notification in step 204 of the second embodiment.
  • the message may include: cell location information (e.g., cell identity), cell load information (e.g., busy state).
  • Step 303 After receiving the message, the ANDSF receives the network load information based on the location of the UE. Develop or update access network selection policies for users.
  • Step 304 The ANDSF sends the established or updated access network selection policy to the UE.
  • Step 305 The UE receives the policy, and subsequently performs access network selection according to the policy.
  • Step 306 The UE returns a response to the ANDSF.
  • An embodiment of the invention also discloses an apparatus for implementing the above method.
  • the embodiment of the invention further discloses a system for providing an access network selection policy based on a network state, the system comprising: a network load information obtaining unit and an access network selection policy sending unit.
  • the network load information obtaining unit is configured to exchange with the ANDSF through the network management system, and the ANDSF load information is used by the UE to generate an access network selection policy, and then send the access network selection policy to the UE.
  • the network load information specifically includes: cell location information, and/or network load information of the cell.
  • the network load information obtaining unit is further configured to send the network load information to the ANDSF by the network management system after the notification is triggered by the timer or after the ANDSF subscribes to the network management system.
  • the network load information obtaining unit is further configured to request the network management system to query the network load information through the ANDSF, and the network management system passively sends the network load information to the ANDSF.
  • the network load information obtaining unit is further configured to: when the ANDSF requests the network management system to query the network load information, the ANDSF provides the network management system with the identifier of the UE and/or the cell identifier of the UE, and queries the location of the UE and/or the network load of the cell where the UE is located. information.
  • the access network selection policy sending unit is further configured to: after the ANDSF establishes an access network selection policy according to the location of the UE and/or the network load information of the cell where the UE is located, send the access network selection policy to the UE.

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

Abstract

L'invention porte sur un procédé pour fournir une politique de sélection de réseau d'accès sur la base d'un état de réseau. Le procédé consiste à : fournir, par interaction entre un système de gestion de réseau et une fonction de découverte et de sélection de réseau d'accès (ANDSF), des informations de charge de réseau pour l'ANDSF, et formuler, par l'ANDSF, une politique de sélection de réseau d'accès pour un UE en fonction des informations de charge de réseau. L'invention porte également sur un système pour fournir une politique de sélection de réseau d'accès sur la base d'un état de réseau. Une unité d'envoi de politique de sélection de réseau d'accès dans le système est utilisée pour, après que l'ANDSF a formulé une politique de sélection de réseau d'accès pour un UE en fonction des informations de charge de réseau, envoyer la politique de sélection de réseau d'accès à l'UE. L'utilisation du procédé et du système selon les modes de réalisation de la présente invention évite d'aggraver la charge du réseau ANDSF.
PCT/CN2012/074475 2011-05-25 2012-04-20 Procédé et système pour fournir une politique de sélection de réseau d'accès sur la base d'un état de réseau WO2012159519A1 (fr)

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CN2011101373848A CN102802239A (zh) 2011-05-25 2011-05-25 一种基于网络状态提供接入网选择策略的方法及系统
CN201110137384.8 2011-05-25

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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103857011B (zh) * 2012-11-30 2018-01-05 中兴通讯股份有限公司 一种ue接入网络的选择方法、装置、系统及一种ue
US20140274009A1 (en) * 2013-03-12 2014-09-18 Qualcomm Incorporated Location-aware network selection
CN104080152A (zh) * 2013-03-27 2014-10-01 北京三星通信技术研究有限公司 一种智能业务管理方法和系统
CN104080153A (zh) * 2013-03-29 2014-10-01 华为技术有限公司 接入点选择方法、用户设备及系统
CN104105171B (zh) * 2013-04-03 2017-11-07 电信科学技术研究院 网络选择策略下发及网络选择方法和设备
CN104144128B (zh) * 2013-05-10 2019-07-12 中兴通讯股份有限公司 一种控制网络拥塞的方法和负荷感知功能
CN103561454B (zh) 2013-10-22 2016-09-28 华为技术有限公司 一种网络接入处理方法及装置
WO2015123875A1 (fr) * 2014-02-21 2015-08-27 华为技术有限公司 Procédé et appareil d'indication et de détermination d'une route de service
CN104168617B (zh) * 2014-07-04 2017-12-22 重庆邮电大学 一种用于5g蜂窝网络中多rat选择/切换的方法
CN105472635A (zh) * 2014-08-26 2016-04-06 中兴通讯股份有限公司 接入网拥塞状态上报、拥塞信息的更新处理方法及装置
CN104507099B (zh) * 2014-11-19 2018-03-30 大唐移动通信设备有限公司 一种网络负荷信息的通知方法和设备
CN105491627A (zh) * 2015-12-10 2016-04-13 南京理工大学 一种异构网络的网络选择优化方法
WO2024040388A1 (fr) * 2022-08-22 2024-02-29 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil de transmission de données

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1352497A (zh) * 2000-11-07 2002-06-05 华为技术有限公司 一种移动通信系统中负载平衡预处理的方法
CN1805587A (zh) * 2004-12-22 2006-07-19 华为技术有限公司 移动通信系统中的接入控制方法
CN101272588A (zh) * 2007-03-19 2008-09-24 华为技术有限公司 异系统切换或重选

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101207900B (zh) * 2006-12-20 2011-08-03 华为技术有限公司 多制式通信网络中实现网络选择的方法、系统
CN101568162B (zh) * 2008-04-25 2011-12-28 华为技术有限公司 接入网重选方法及装置、用户设备
CN101945463B (zh) * 2009-07-08 2013-04-17 华为技术有限公司 获取信令转发功能实体信息的方法及设备
CN101651977B (zh) * 2009-08-28 2011-09-21 华为技术有限公司 一种基于多连接的网络选择方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1352497A (zh) * 2000-11-07 2002-06-05 华为技术有限公司 一种移动通信系统中负载平衡预处理的方法
CN1805587A (zh) * 2004-12-22 2006-07-19 华为技术有限公司 移动通信系统中的接入控制方法
CN101272588A (zh) * 2007-03-19 2008-09-24 华为技术有限公司 异系统切换或重选

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