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WO2011113207A1 - Procédé et dispositif destinés à un commutateur d'accès aux services - Google Patents

Procédé et dispositif destinés à un commutateur d'accès aux services Download PDF

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Publication number
WO2011113207A1
WO2011113207A1 PCT/CN2010/071152 CN2010071152W WO2011113207A1 WO 2011113207 A1 WO2011113207 A1 WO 2011113207A1 CN 2010071152 W CN2010071152 W CN 2010071152W WO 2011113207 A1 WO2011113207 A1 WO 2011113207A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
calling party
party
called party
core network
Prior art date
Application number
PCT/CN2010/071152
Other languages
English (en)
Chinese (zh)
Inventor
钱荣福
孔令山
林凌峰
吕平宝
韦宇
汪云华
马红
Original Assignee
上海贝尔股份有限公司
阿尔卡特朗讯
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 上海贝尔股份有限公司, 阿尔卡特朗讯 filed Critical 上海贝尔股份有限公司
Priority to PCT/CN2010/071152 priority Critical patent/WO2011113207A1/fr
Priority to CN2010800579090A priority patent/CN102656921A/zh
Publication of WO2011113207A1 publication Critical patent/WO2011113207A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels

Definitions

  • the present invention relates to wireless communications, and more particularly to switching techniques in wireless communications. Background technique
  • the service data needs to be exchanged through a Serving Gateway (SGW). That is, for both terminals of the communication, the communication services of the calling party and the called party must be served. Gateway. Even in the case where the calling party and the called party belong to the same base station, the local call between them needs to be exchanged by the service gateway for the service data of the local call from the base station.
  • SGW Serving Gateway
  • two backhaul links B1 and B2 between the base station and the serving gateway corresponding to the calling party UE 1 and the called party UE 2 need to be established in the network.
  • the communication service path between the calling party and the called party is: calling party UE 1-base station eNB-serving gateway SGW-base station eNB-called party UE 2.
  • the existing LTE standard needs to occupy the bandwidth of the backhaul link when processing the local call. And because of the introduction of the backhaul link, the call delay between the calling party and the called party is large. In densely populated areas and in some rural and remote areas, many calls are local calls: Some studies have shown that up to 30% of all calls handled by a Base Station Controller (BSC) are local calls; In the fee analysis, this ratio even reached 60%. Based on the existing LTE standard, the service data of these calls needs to have a base station interact with the serving gateway through the backhaul link, and the service gateway exchanges.
  • BSC Base Station Controller
  • a base station for assisting a base station is provided in a core network based on the LTE standard.
  • a method for exchanging communication services between a party and a called party includes the following steps: acquiring information about a base station to which the calling party and the called party belong; according to the calling party and the Determining whether the calling party and the called party are both controlled by the same base station; and when the calling party and the called party are both by the same base station
  • the local exchange indication is sent to the same base station, where the indication is used to indicate that the same base station locally establishes a local exchange of communication services between the calling party and the called party at the base station.
  • a method for exchanging communication services between a calling party and a called party that are under the jurisdiction of the base station is provided in a base station based on the LTE standard, and the method includes the following steps.
  • Receiving a local exchange indication from the core network the indication is used to indicate that the base station establishes a local exchange of the communication service between the calling party and the called party at the base station; and, establishing the primary at the local base station
  • the local exchange of the communication service between the calling party and the called party sends the communication service sent by the calling party and/or the called party directly to the other party.
  • a device for assisting a base station to exchange communication services between a calling party and a called party in a terminal management unit of a core network based on the LTE standard wherein An obtaining unit, configured to acquire information about a base station to which the calling party and the called party belong, and a determining unit, configured to determine, according to information about a base station to which the calling party and the called party belong, Whether the calling party and the called party are both under the jurisdiction of the same base station; and the first transmitter is configured to: when both the calling party and the called party are under the jurisdiction of the same base station, The same base station sends a local exchange indication, where the indication is used to indicate that the same base station locally establishes a local exchange of communication services between the calling party and the called party at the base station.
  • a device for exchanging communication services between a calling party and a called party that are under the jurisdiction of the base station includes: a second receiver, configured to receive a local exchange indication from a terminal management unit of the core network, where the indication is used to indicate that the base station establishes a local exchange of the communication service between the calling party and the called party at the local base station; And performing local exchange of the communication service between the calling party and the called party at the base station, and directly transmitting the communication service sent by the calling party and/or the called party to the other party.
  • the base station can exchange communication services between the calling party and the called party under the jurisdiction of the base station at the base station, and does not need to exchange the communication service to the service gateway through the backhaul link and exchange by the service gateway, thereby saving bandwidth. And the exchange resources of the service gateway, and shorten the exchange delay.
  • a first radio access bearer between the calling party and the core network, and a second radio access bearer between the core network and the called party are also created in a wireless network.
  • the serving gateway can still communicate with the other party through the radio access bearer with the other party, and the base station eNB can also The radio access bearer communicates with the other party and the service gateway, which has less impact on the communication already in progress.
  • FIG. 1 is a schematic diagram of an existing LTE standard for exchanging service data exchange paths in a local call
  • FIG. 2 is a signaling flow for establishing a local exchange at a calling party according to an embodiment of the present invention
  • FIG. 3 is a signaling flow for establishing a local exchange at a called party in accordance with an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an exchange path for processing service data in a local call according to an embodiment of the present invention.
  • the user equipment UE1 and the user equipment UE2 are governed by the base station eNB.
  • the user equipment UE1 initiates a call to the user equipment UE2, which establishes a local exchange of the user equipment UE1 and UE2 at the base station eNB according to an embodiment of the invention.
  • the user equipment UE1 or UE2 can already be running the service, and no service can be run.
  • FIG. 2 first, the user equipment UE1 accesses the base station eNB through a random access procedure. Then, the user equipment UE1 and the base station eNB exchange RRCConnectionRequest
  • step S10 the second transmitter of the base station eNB will use the INITIAL UE MESSAGE for accessing the user equipment UE1.
  • the (initial UE message) signaling is sent to a Mobility Management Entity (MME) in the core network, which is mainly responsible for control plane signaling interaction.
  • MME Mobility Management Entity
  • the first receiver of the mobility management entity receives the INITIAL in step S20.
  • UE MESSAGE initial UE message
  • step S10 the second transmitter of the base station eNB is at INITIAL UE MESSAGE
  • the identifier of the own base station eNB to which the user equipment UE1 belongs is sent to the mobility management entity.
  • the first receiver of the mobility management entity receives the identity of the base station eNB to which the user equipment UE1 belongs, which is transmitted by the base station eNB.
  • the mobility management entity saves the identity of the base station eNB to which the user equipment UE1 belongs.
  • NAS information is transmitted in the network.
  • the mobility management entity transmits an INITIAL CONTEXT SETUP REQUEST signaling for indicating context information such as call QoS to the base station eNB.
  • the base station eNB interacts with the user equipment UE1 with RRCConnectionReconfiguration (RRC Connection Reset) signaling and RRCConnectionReconfigurationComplete (RRC ⁇ ⁇ ⁇ 4 4 command. After that, NAS information transmission is performed in the network. Subsequently, the base station eNB will INITIAL CONTEXT SETUP RESPONSE (initial context) The establishment response is signaled back to the mobility management entity.
  • the mobility management entity will establish an E-RAB SETUP REQUEST for the E-UTRAN Radio Access Bearer (E-RAB) between the user equipment UE1 and the serving gateway SGW.
  • E-RAB E-UTRAN Radio Access Bearer
  • the request) signaling is sent to the base station eNB.
  • the base station eNB interacts with the user equipment UE1 RRCConnectionReconfiguration (RRC Connection Reconfiguration) signaling and
  • RRCConnectionReconfigurationComplete RRC Connection Reconfiguration Complete J Signaling.
  • the base station eNB creates the E-RAB and will indicate whether the E-RAB is successfully created.
  • the radio access bearer creates a response E-RAB SETUP RESPONSE (E-RAB Setup Response)
  • E-RAB Setup Response The signaling is sent back to the mobility management entity.
  • the NAS information transmission is performed in the network.
  • the E-RAB between the user equipment UE1 and the serving gateway SGW has been established.
  • the E-RAB is hereinafter referred to as the calling E- RAB, as in Figure 4, the E-RAB includes a backhaul link B1.
  • the mobility management entity interacts with the user equipment UE 1 for NAS information.
  • the UID of the user equipment UE2 is queried at the Home Subscriber Server (HSS) based on the mobile phone number of the called party user equipment UE2.
  • HSS Home Subscriber Server
  • the mobility management entity sends a paging message to each base station, including the base station eNB, under its jurisdiction to find the user equipment UE2 of the corresponding UID.
  • the base station eNB After receiving the paging message sent by the mobility management entity for the user equipment UE2, the base station eNB broadcasts a paging message within the jurisdiction of the base station, and the paging message is received by the user equipment UE2.
  • the user equipment UE2 accesses the base station eNB through a random access procedure. Then, the user equipment UE2 and the base station eNB exchange RRCCotent ctionRequest (RRC Connection Request ⁇ RRCConnectionSetup (RRC Connection Setup) and RRCConnectionSetup (RRC Connection Setup Complete) At. Then, in step S12, the second transmitter of the base station eNB uses The INITIAL UE MESSAGE signaling to the access user equipment UE2 is sent to the mobility management entity. In step S22, the first receiver of the mobility management entity receives the INITIAL UE MESSAGE (initial UE message) signaling. The signaling interactions during these call setup procedures are well known to those of ordinary skill in the art and will not be described again.
  • step S12 the first transmitter of the base station eNB sends the identity of the base station eNB to which the user equipment UE2 belongs in the INITIAL UE MESSAGE message to the mobility management entity.
  • step S22 the first receiver of the mobility management entity receives the identity of the base station eNB to which the user equipment UE2 belongs, which is transmitted by the base station eNB.
  • the judging unit of the mobility management entity judges whether the calling party user equipment UE 1 and the called party user equipment UE2 are both under the jurisdiction of the same base station. For example, it determines whether the identity of the base station eNB to which the user equipment UE2 belongs is the same as the identity of the base station eNB to which the previously stored user equipment UE1 belongs. In this embodiment, the mobility management entity determines that both the calling party user equipment UE1 and the called party user equipment UE2 are under the jurisdiction of the same base station eNB.
  • NAS information is transmitted in the network.
  • the mobility management entity transmits an INITIAL CONTEXT SETUP REQUEST signaling for indicating context information such as call QoS to the base station eNB.
  • the base station eNB interacts with the user equipment UE2 with RRCConnectionReconfiguration (RRC Connection Reconfiguration) signaling and RRCConnectionReconfigurationComplete (RRC ⁇ J signaling. Thereafter, NAS information transmission is performed in the network. Subsequently, the base station eNB will INITIAL CONTEXT SETUP RESPONSE (initial context establishment) The response) signaling is sent back to the mobility management entity.
  • step S26 the mobility management entity will use an E-RAB SETUP REQUEST (E-RAB SETUP REQUEST) for establishing an Enhanced Radio Access Bearer (E-RAB) between the user equipment UE2 and the serving gateway SGW.
  • E-RAB Enhanced Radio Access Bearer
  • - RAB setup request Signaling is sent to the base station eNB.
  • the base station eNB receives the E-RAB SETUP REQUEST signaling.
  • the base station eNB interacts with the user equipment UE2 with RRCConnectionReconfiguration signaling and RR CConnectionReconfigurationComple (the RRC connection reconfiguration complete X command.
  • step S16 the base station eNB creates the E-RAB and will use A radio access bearer creation response E-RAB SETUP RESPONSE signaling indicating whether the E-RAB is successfully created is sent back to the mobility management entity, and the mobility management entity receives the E-RAB SETUP RESPONSE in step S28 ( E-RAB establishes response) signaling. Thereafter, NAS information transmission is performed in the network.
  • E-RAB between the user equipment UE2 and the serving gateway SGW has been established.
  • the E-RAB is referred to as called E-RAB, as shown in Figure 4, the E-RAB includes a backhaul link B2.
  • the signaling interactions during these call setup procedures are well known to those of ordinary skill in the art and will not be described again.
  • the mobility management entity stores a local exchange indication in the E-RAB SETUP REQUEST signaling to the base station eNB to indicate that the base station eNB establishes the calling party locally at the base station.
  • the local exchange indication includes the identity of the calling party UE1 and the identity of the calling E-RAB. Table 1 below shows the E-RAB SETUP REQUEST signaling, and the IE (bold representation) used as the local exchange indication defined in this embodiment included therein.
  • the E-RAB SETUP REQUEST signaling includes a local exchange indication IE and a local exchange E-RAB information IE: in the local exchange indication IE, mandatory Including the identity of the calling party UE1 (calling eNB UE S1AP ID), optionally including the identity of the base station eNB (caller global
  • the base station eNB determines to locally exchange the calls of the calling party UE1 and the called party UE2.
  • the base station eNB establishes local exchange of communication services of the calling party UE1 and the called party UE2 at the own base station.
  • the base station eNB can directly send the communication service to the other party, thereby avoiding the interaction of the communication service through the backhaul link.
  • the serving gateway SGW is exchanged by the serving gateway SGW, which saves the bandwidth of the backhaul link and the switch capability of the serving gateway SGW, and shortens the switching delay. It can be understood that the communication service of the calling party UE1 and the called party UE2 in the base station eNB can be performed in each protocol layer of the protocol stack, which is not described here.
  • E-RAB SETUP RESPONSE E-RAB Establishment Response
  • IE in bold
  • the base station eNB does not support local switching, it does not establish a local exchange, and does not include in the E-RAB SETUP RESPONSE signaling it transmits.
  • the identity is; when the base station eNB supports the local exchange, but for some reasons, for example, the local switch can be insufficient and the local exchange is not established, the identifier value is false; when the base station eNB supports the local exchange and successfully establishes the local exchange, The identity value is true.
  • E-RAB SETUP REQUEST signaling and E-RAB SETUP RESPONSE signaling are utilized, and a new local exchange is added therein.
  • Information exchange related to local exchange can be performed between the mobility management entity and the base station through other signaling.
  • the mobility management entity retains all the user plane information allocated to the relevant E-RABs of the user equipments UE1 and UE2. From the perspective of the core network, that is, from the perspective of the mobility management entity and the serving gateway, the radio access bearers between the user equipment UE1 and UE2 and the serving gateway respectively still exist.
  • the base station eNB also retains the user plane information of the SGW in the UE context of the user equipments UE1 and UE2. This means that the base station eNB and the serving gateway can still exchange service data by returning links B1 and B2.
  • the service gateway can still pass the other party.
  • the inter-radio access bearer interacts with the other party to exchange communication between the calling party and the called party, and the base station eNB is also capable of interacting between the calling party and the called party based on the radio access bearer and the other party and the serving gateway. Communication business. It will be appreciated that this embodiment is preferred and not required.
  • the radio access bearer may not be established between the calling party or the called party and the core network. While the invention has been illustrated and described with reference to the particular embodiments

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

Abstract

Pour résoudre les problèmes liés à la norme d'évolution à long terme (LTE) courante, à savoir que la bande passante des liaisons terrestres et la fonction de commutation d'une passerelle de desserte sont occupées et que le retard du temps de conversation est trop long, etc. parce qu'un cœur de réseau doit commuter des services de conversation entre deux parités lorsque les services de conversation entre deux parités gérées par la même station de base sont traités, la présente invention fournit un procédé et un dispositif destinés à un commutateur d'accès aux services. Le cœur de réseau obtient les informations des stations de base auxquelles un abonné appelant et un abonné appelé appartiennent respectivement, et juge si l'abonné appelant et l'abonné appelé sont gérés par la même station de base. Si l'abonné appelant et l'abonné appelé sont gérés par la même station de base, une indication de commutation locale est envoyée à la même station de base. Puis, la même station de base reçoit l'indication de commutation locale à partir du cœur de réseau, établit la commutation locale des services de communication entre l'abonné appelant et l'abonné appelé au niveau de la station de base, et transmet directement les services de communication envoyés à partir de l'abonné appelant et/ou de l'abonné appelé à la partie opposée. Ainsi, il n'est pas nécessaire d'échanger les services de communication avec la passerelle de desserte par l'intermédiaire de liaisons terrestres et d'exécuter la commutation par la passerelle de desserte ; c'est pourquoi la bande passante des liaisons terrestres et les ressources de commutation de la passerelle de desserte sont réduites, et le délai du temps de commutation est raccourci.
PCT/CN2010/071152 2010-03-19 2010-03-19 Procédé et dispositif destinés à un commutateur d'accès aux services WO2011113207A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2010/071152 WO2011113207A1 (fr) 2010-03-19 2010-03-19 Procédé et dispositif destinés à un commutateur d'accès aux services
CN2010800579090A CN102656921A (zh) 2010-03-19 2010-03-19 用于业务交换的方法以及设备

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PCT/CN2010/071152 WO2011113207A1 (fr) 2010-03-19 2010-03-19 Procédé et dispositif destinés à un commutateur d'accès aux services

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CN103813413A (zh) * 2012-11-12 2014-05-21 上海贝尔股份有限公司 基于本地交换来改善数据传输的方法、装置与基站
EP2824966A4 (fr) * 2012-03-26 2015-06-17 Huawei Tech Co Ltd Procédé, dispositif et système de transmission de données
WO2015168890A1 (fr) * 2014-05-08 2015-11-12 华为技术有限公司 Procédé pour central de voip et dispositif apparenté
CN107920378A (zh) * 2016-10-11 2018-04-17 中国移动通信有限公司研究院 本地路由处理方法及装置

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WO2017147823A1 (fr) * 2016-03-02 2017-09-08 臧利 Procédé et système d'envoi de données pour station de base

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CN101594606A (zh) * 2008-05-27 2009-12-02 大唐移动通信设备有限公司 用户位置信息上报方法、系统及装置

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EP2824966A4 (fr) * 2012-03-26 2015-06-17 Huawei Tech Co Ltd Procédé, dispositif et système de transmission de données
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CN103813413A (zh) * 2012-11-12 2014-05-21 上海贝尔股份有限公司 基于本地交换来改善数据传输的方法、装置与基站
WO2015168890A1 (fr) * 2014-05-08 2015-11-12 华为技术有限公司 Procédé pour central de voip et dispositif apparenté
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CN107920378A (zh) * 2016-10-11 2018-04-17 中国移动通信有限公司研究院 本地路由处理方法及装置

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