WO2014086208A1 - 电路域交换网络业务的处理方法、装置及mme - Google Patents

电路域交换网络业务的处理方法、装置及mme Download PDF

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Publication number
WO2014086208A1
WO2014086208A1 PCT/CN2013/085572 CN2013085572W WO2014086208A1 WO 2014086208 A1 WO2014086208 A1 WO 2014086208A1 CN 2013085572 W CN2013085572 W CN 2013085572W WO 2014086208 A1 WO2014086208 A1 WO 2014086208A1
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Prior art keywords
circuit domain
mobility management
vlr
network service
management unit
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PCT/CN2013/085572
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English (en)
French (fr)
Inventor
刘竞翔
曹小飞
余磊
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP13860198.4A priority Critical patent/EP2930975B1/en
Priority to US14/649,711 priority patent/US20150327050A1/en
Publication of WO2014086208A1 publication Critical patent/WO2014086208A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06Registration at serving network Location Register, VLR or user mobility server
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • H04W8/12Mobility data transfer between location registers or mobility servers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/005Data network PoA devices

Definitions

  • the present invention relates to the field of communications, and in particular to a method, a device, and a mobility management entity (Mobility Management Entity, MME for short) of a circuit domain switching network service.
  • MME Mobility Management Entity
  • BACKGROUND The System Architecture Evolution (SAE) network is a new generation wireless network technology developed by the 3rd Generation Partnership Project (3GPP) to replace the traditional circuit switching network.
  • the system architecture evolution network includes the Long Term Evolution (LTE) and the evolved Packet Core (EPC).
  • LTE Long Term Evolution
  • EPC evolved Packet Core
  • the architecture of the system architecture evolution network is shown in Figure 1. The functions of each network element. As explained below.
  • User Equipment User Equipment
  • the user equipment has access to a Global Mobile Telecommunication System Radio Access Network/GSM EDGE Radio Access Network (UTRAN/GERAN, referred to as GPRS wireless network, UTRAN stands for 3G, GERAN stands for 2G) and The capabilities of two LTE wireless networks. Due to capacity limitations and energy saving requirements, UEs can only reside in one wireless system (called Single Radio) at the same time. For example, when the UE camps on LTE, it cannot receive paging from UTRAN/GERAN. Message. An evolved wireless node (evolved NodeB, eNodeB for short). Evolved wireless nodes can provide higher uplink and downlink rates, lower transmission delays, and more reliable wireless transmission over UTRAN on air interfaces.
  • eNodeB evolved wireless nodeB
  • the eNodeB provides radio resources for terminal access and establishes an S1 control plane link with the core network MME.
  • the mobility management entity MME is a control plane entity that temporarily stores user data, and is responsible for managing and storing UE contexts (such as UE/user identity, mobility management state, user security parameters, etc.), and assigning temporary identifiers to users globally uniquely.
  • the MME is responsible for authenticating users when they access the LTE.
  • the SAE Gateway (SAE Gateway) is a user plane entity responsible for user plane data routing.
  • the SAE GW is generally divided into a Serving GW and a Packet Data Network GateWay (PDN GW), and the Serving GW is responsible for LTE and the Universal Mobile Telecommunications System.
  • PDN GW Packet Data Network GateWay
  • PDN GW is responsible for the gateway function of the UE accessing the packet data network PDN, and assigns a user IP (Internet Protocol) address to the user.
  • the PDN GW and the Serving GW may be combined in one physical entity.
  • the home subscriber server (HSS) is configured to save the subscriber's subscription data and record the MME name (MME NAME) where the user is located.
  • Figure 1 also shows the architecture of a traditional circuit domain switching network.
  • the core network element has a Mobile Switching Center (MSC) and a Visitor Location Register (VLR). The MSC and the VLR are physically combined.
  • MSC Mobile Switching Center
  • VLR Visitor Location Register
  • the 3G radio access controller Radio Network Controller, RNC for short
  • the base station controller BSC
  • the 3G radio access controller Radio Network Controller, RNC for short
  • the traditional circuit domain switching network uses a Home Location Register (HLR) to store the subscriber's subscription information and the address of the VLR.
  • the HLR can obtain the mobile Subscriber Roaming Number (MSRN) from the VLR.
  • MSRN mobile Subscriber Roaming Number
  • the HLR and HSS are served by one physical network element.
  • the Gateway Mobile Switching Center (GMSC) is set to route the call to the MSC where the user is located. When there is a call to the mobile subscriber, the GMSC obtains the MSRN of the subscriber through the HLR, and then routes the call according to the MSRN.
  • the MME network element of the SAE and the VLR of the traditional circuit domain switching network are connected through the SGs interface.
  • CSFB Circuit Switch Fallback
  • a UE that can fall back to a traditional circuit domain switching network for service is called a Dual Mode Single Radio UE.
  • the CSFB technology establishes an SGs interface between the MME of the SAE and the VLR of the traditional circuit domain switching network.
  • the MME can enable the UE roaming under LTE to trigger the location update process of the traditional circuit domain switching network, so that the UE registers in the traditional circuit domain switching network while the SAE is active.
  • the process includes the following steps: Step S202: The UE in LTE is powered on or changes the Tracking Area (TA), initiates the ATTACH or Tracking Area Update (referred to as TAU) operation.
  • Step S206 After the registration is successful, the MME derives a Location Area Identity (LAI) of the UE in the traditional circuit domain switching network by using the tracking area where the UE is located, and locates the corresponding VLR.
  • LAI Location Area Identity
  • the MME sends a location update request to the VLR.
  • Step S208 If the VLR has no user data, or the VLR considers that the user data is unreliable, the VLR sends a location update request to the HLR.
  • the VLR returns a location update complete message to the MME, and modifies the state of the SGs interface to be activated.
  • FIG. 3 shows the processing flow after the VLR receives the user information (Provide Subscriber Info, PSI for short).
  • the foregoing process includes the following steps: Step S302: The VLR receives the PSI message sent by the HLR. Because the UE is registered to the VLR through the SGs interface location update, the VLR sends an SGs interface paging message (Paging) to the MME.
  • PSI Public Subscriber Info
  • Step S304 MME initiates a paging procedure in LTE, the UE receives a paging request return extended service (Extended Service Request) 0
  • Step S306 MME returns the SGs interface service request message (SGs Service Request) to the VLR.
  • Step S308 The paged UE rolls back to the circuit domain, and initiates a paging response from the traditional circuit domain switching network.
  • S310 Receive a paging response VLR, obtain a user location, and return a PSI response message to the HLR.
  • the UE switches from the LTE network to the traditional circuit domain switching network in order to receive the circuit domain switching network service.
  • this process increases the message traffic of the network, and may cause the UE to be interrupted in the LTE network service.
  • For the Internet it is a very inefficient approach.
  • the same problem occurs when the UE receives the called mode call irrelevant supplementary service.
  • an effective solution has not yet been proposed.
  • a method for processing a circuit domain switching network service including: a mobility management unit receives a request for performing a circuit domain switching network service; and the mobility management unit has a user corresponding to the request The device interacts to process the above-mentioned circuit domain switching network services.
  • the mobility management unit receives the request forwarded by the visitor location register VLR.
  • the processing method of the circuit domain switching network service further includes: the mobility management unit receiving the paging message sent by the VLR, where The paging message includes first indication information, where the first indication information is used to indicate that the VLR supports forwarding of the circuit-switched network service, and the mobility management unit sends second indication information to the VLR, where the second The indication information is used to indicate that the mobility management unit supports forwarding of the circuit domain switching network service, and receives the circuit domain switching network service forwarded by the VLR.
  • the mobility management unit interacts with the user equipment corresponding to the request, and the processing the circuit domain switching network service includes: when the circuit domain switching network service provides the user information PSI service, the mobility management unit acquires the foregoing. User information of the user equipment; the mobility management unit feeds back the user information to the VLR.
  • the mobility management unit interacts with the user equipment corresponding to the request, and the processing of the circuit domain switching network service includes: when the circuit domain switching network service is a call-independent supplementary service, the mobility management unit is not related to the call.
  • the supplementary content of the supplementary service request is sent to the user equipment to perform the call irrelevant supplementary service; the mobility management unit feeds back the execution result of the user equipment to the VLR.
  • the processing method of the circuit domain switching network service further includes: the mobility management unit receiving the paging message sent by the VLR, where The paging message includes third indication information, where the third indication information is used to indicate that the VLR does not support forwarding of the circuit-switched network service, and/or the mobility management unit sends fourth indication information to the VLR, where The fourth indication information is used to indicate that the mobility management unit does not support forwarding of the circuit domain switching network service; and the mobility management unit triggers a process of dropping the user equipment to the circuit domain switching network.
  • a processing apparatus for circuit domain switching network service including: a first receiving module, configured to receive a request for performing a circuit domain switching network service; and a processing module configured to be configured with the foregoing request The corresponding user equipment interacts to process the circuit domain switching network service.
  • the processing device for the circuit domain switching network service further includes: a second receiving module, configured to receive a paging message sent by the visited location register VLR, where the paging message includes first indication information, where An indication information is used to indicate that the VLR supports the forwarding of the circuit-switched network service, and the sending module is configured to send the second indication information to the VLR, where the second indication information is used to indicate that the mobility management unit supports the circuit.
  • the processing module includes: a processing unit, configured to acquire the user information of the user equipment when the circuit domain switching network service provides the user information PSI service; and the sending unit is configured to feed back the user information to the VLR .
  • an MME is provided, including: processing device for any of the above circuit domain switching network services.
  • the mobility management unit receives the request for performing the circuit domain switching network service, and interacts with the user equipment corresponding to the request, and processes the circuit domain switching network service, so that the UE does not fall back and can also receive
  • the problem of circuit domain switching network service avoids the UE falling back to the circuit domain switching network to receive circuit domain switching network services, thereby reducing network consumption, improving network efficiency, and helping to improve the user experience.
  • FIG. 1 is a schematic structural diagram of a SAE and a conventional circuit domain switching network according to the related art
  • FIG. 2 is an interaction diagram of a legacy circuit domain switching network registration performed by a UE under LTE according to the related art
  • FIG. 3 is a related art according to the related art.
  • the interaction diagram of the PSI request of the traditional circuit domain switching network is received by the UE in the LTE to the traditional circuit domain switching network;
  • FIG. 4 is a flowchart of the processing method of the circuit domain switching network service according to the embodiment of the present invention
  • 5 is a structural block diagram of a processing apparatus for circuit domain switching network services according to an embodiment of the present invention
  • FIG. 6 is a structural block diagram of another processing apparatus for circuit domain switching network services according to an embodiment of the present invention
  • the processing method of the circuit domain switching network service of the embodiment of the invention processes the interaction diagram of the PSI service
  • FIG. 8 is an interaction diagram of the processing method of the call-independent supplementary service using the processing method of the circuit domain switching network service according to an embodiment of the present invention.
  • This embodiment provides a method for processing a circuit domain switching network service.
  • the method for processing the circuit domain switching network service includes steps S402 to S404.
  • Step S402 The mobility management unit receives a request for performing circuit domain switching network service.
  • Step S404 The mobility management unit interacts with the user equipment corresponding to the request, and processes the circuit domain exchange network service.
  • the mobility management unit receives the request for performing the circuit domain switching network service, and interacts with the user equipment corresponding to the request to process the circuit domain switching network service, so that the UE does not fall back, and can also receive the circuit domain exchange.
  • the problem of network service avoids the UE falling back to the circuit domain switching network to receive the circuit domain switching network service, thereby reducing network consumption, improving network efficiency, and helping to improve the user experience.
  • the mobility management unit receives the above request forwarded by the VLR.
  • the VLR may forward the request to the mobility management unit through the SGs interface.
  • the processing method of the circuit-switched network service includes: The affiliation management unit receives the paging message sent by the VLR, where the paging message includes first indication information, where the first indication information is used to indicate that the VLR supports forwarding of the circuit domain switched network service; The management unit sends the second indication information to the VLR, where the second indication information is used to indicate that the mobility management unit supports forwarding of the circuit domain switching network service, and receives the circuit domain switching network service forwarded by the VLR.
  • the mobility management unit interacts with the user equipment corresponding to the request, and the processing the circuit domain switching network service includes: when the circuit domain switching network service provides the user information PSI service, the mobility management unit acquires the foregoing. User information of the user equipment; the mobility management unit feeds back the user information to the VLR. Preferably, the mobility management unit may feed back the user information to the VLR through an SGs interface.
  • the mobility management unit interacts with the user equipment corresponding to the request, and the processing of the circuit domain switching network service includes: when the circuit domain switching network service is a call-independent supplementary service, the mobility management unit is not related to the call.
  • the supplementary content of the supplementary service request is sent to the user equipment to perform the call irrelevant supplementary service; the mobility management unit feeds back the execution result of the user equipment to the VLR.
  • the mobility management unit may feed back the execution result of the user equipment to the VLR through an SGs interface.
  • the processing method of the circuit domain switching network service before the mobility management unit receives the request for performing the circuit domain switching network service, the processing method of the circuit domain switching network service further includes: the mobility management unit receiving the VLR a paging message, where the paging message includes third indication information, where the third indication information is used to indicate that the VLR does not support forwarding of the circuit domain switched network service; and/or the mobility management unit
  • the VLR sends the fourth indication information, where the fourth indication information is used to indicate that the mobility management unit does not support forwarding of the circuit domain switching network service; and the mobility management unit triggers the user equipment to fall back to the circuit domain switching network.
  • the preferred embodiment provides a processing device for the circuit domain switching network service. As shown in FIG.
  • the processing device for the circuit domain switching network service includes: a first receiving module 502, configured to receive the circuit domain switching network service.
  • the processing module 504 is configured to be connected to the first receiving module 502, and configured to interact with the user equipment corresponding to the request to process the circuit domain switching network service.
  • the first receiving module 502 receives the request for performing the circuit domain switching network service
  • the processing module 504 interacts with the user equipment corresponding to the request, and processes the circuit domain switching network service, so that the UE does not fall back. It can also receive the problem of circuit domain switching network service, avoiding the UE falling back to the circuit domain switching network to receive the circuit domain switching network service, thereby reducing network consumption, improving network efficiency, and helping to improve the user experience.
  • the processing device for the circuit domain switching network service further includes: a second receiving module 506, configured to receive the visited location register. a paging message sent by the VLR, where the paging message includes first indication information, where The first indication information is used to indicate that the VLR supports the forwarding of the circuit-switched network service; the sending module 508 is connected to the second receiving module 506, and is configured to send the second indication information to the VLR, where The second indication information is used to indicate that the mobility management unit supports forwarding of the circuit domain switching network service, and receives the circuit domain switching network service forwarded by the VLR.
  • the processing module 504 includes: a processing unit, configured to: when the circuit domain switching network service provides a user information PSI service, acquire user information of the user equipment; and send, connect to the processing unit, set to The user information is fed back to the VLR.
  • the processing unit is further configured to: when the circuit domain switching network service is a call-independent supplementary service, send the supplementary content of the call-independent supplementary service request to the user equipment to perform the call-independent supplementary service; It is further arranged to feed back the execution result of the above user equipment to the VLR.
  • the processing device for the circuit domain switching network service further includes: the second receiving module 506 is further configured to receive the paging message sent by the VLR, where the paging message is The third indication information is used, where the third indication information is used to indicate that the VLR does not support forwarding of the circuit-switched network service, and/or the sending module 508 is further configured to send fourth indication information to the VLR, where The fourth indication information is used to indicate that the mobility management unit does not support forwarding of the circuit domain switching network service, and the triggering module is connected to the second receiving module 506 and/or the sending module 508, and is configured to trigger the user equipment. The process of falling back to the circuit domain switching network.
  • FIG. 7 is an interaction diagram of processing a PSI service by using a circuit domain switching network service processing method according to an embodiment of the present invention.
  • the process includes the following steps: Step S702: The VLR receives the PSI message sent by the HLR.
  • Step S706 The MME initiates a paging process within the LTE, and the UE returns an extended service request.
  • Step S708 The MME determines that the SGs that support the PSI are forwarded, and sends the SGs service request to the VLR, where the message carries the PSI forwarding flag (corresponding to the second indication information).
  • Step S710 The VLR receives the message, and forwards the PSI service request (corresponding to the above request for performing circuit domain switching network service) to the MME.
  • Step S712 The MME obtains the information of the UE, and returns it to the VLR in the PSI response message.
  • Step S714 The VLR returns a PSI response to the HLR.
  • FIG. 8 is an interaction diagram of processing a call-independent supplementary service using a circuit domain switching network service processing method according to an embodiment of the present invention, as shown in FIG.
  • the process flow includes the following steps: Step S802: The VLR receives the call-independent supplementary service message sent by the HLR. Step S804: The UE sends the SGs interface Paging (Paging Message) to the MME, and the VLR supports the call-independent supplementary service forwarding flag (corresponding to the foregoing first indication information). Step S806: The MME initiates a paging process within the LTE, and the UE returns an extended service request.
  • Step S808 The MME determines that the SGs forwarding of the call-independent supplementary service is supported, and sends the SGs service request to the VLR, where the message carries the MME-enabled call-independent supplementary service forwarding flag (corresponding to the second indication information).
  • Step S810 The VLR receives the message, and forwards the call-independent supplementary service service request (corresponding to the above request for performing the circuit domain switching network service) to the MME.
  • Step S812 The MME sends the content of the supplementary service to the UE, and the UE returns a response.
  • Step S814 The MME returns the execution result of the call-independent supplementary service to the VLR.
  • Step S816 The VLR returns a call-independent supplementary service response to the HLR.
  • the new VLR address registered by the user is passed back to the original VLR receiving the service request. Based on the address, the original VLR can forward the service request to the new VLR for processing, so that the service can be performed normally.
  • the foregoing preferred embodiment implements the following technical effects: receiving, by the mobility management unit, a request for performing circuit domain switching network service, and interacting with the user equipment corresponding to the request, processing the circuit domain
  • the network service is exchanged, and the problem that the UE does not fall back and the circuit domain switching network service can be received, and the UE is prevented from falling back to the circuit domain switching network to receive the circuit domain switching network service, thereby reducing network consumption and improving network efficiency.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
  • the above technical solution provided by the present invention can be applied to a process of exchanging network services, and a request for receiving a circuit domain switching network service by a mobility management unit is performed, and interacting with a user equipment corresponding to the request, and processing
  • the technical means of the above-mentioned circuit domain switching network service solves the problem that the UE needs to fall back to the traditional circuit domain switching network in order to receive the circuit domain switching network service in the related art, thereby reducing network consumption and improving network efficiency.

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Abstract

本发明提供了一种电路域交换网络业务的处理方法、装置及MME,其中,该电路域交换网络业务的处理方法包括:移动性管理单元接收到进行电路域交换网络业务的请求;移动性管理单元与请求对应的用户设备进行交互,处理电路域交换网络业务。本发明解决了相关技术中UE为了接收电路域交换网络业务,需回落到传统电路域交换网络的问题,从而降低网络消耗,提高网络效率,有助于改善用户体验。

Description

电路域交换网络业务的处理方法、 装置及 MME
技术领域 本发明涉及通信领域, 具体而言, 涉及一种电路域交换网络业务的处理方法、 装 置及移动性管理实体 (Mobility Management Entity, 简称为 MME)。 背景技术 系统架构演进(System Architecture Evolution, 简称为 SAE)网络是第三代合作伙 伴计划 (3rd Generation Partnership Project, 简称为 3GPP)组织制定的用以替代传统电 路交换网络的新一代无线网络技术。系统架构演进网络包括长期演进空口(Long Term Evolution, 简称为 LTE) 和演进的分组核心网 (evolved Packet Core, 简称为 EPC), 系统架构演进网络的架构如图 1所示, 各网元的功能如下说明。 用户设备 (User Equipment, 简称为 UE)。 用户设备具有能接入全球移动通信系 统无线接入网(Universal Mobile Telecommunication System Radio Access Network/GSM EDGE Radio Access Network,简称为 UTRAN/GERAN,指 GPRS的无线网络, UTRAN 代表 3G, GERAN代表 2G)和 LTE两种无线网络的能力。 UE由于能力限制以及节能 需求, 在同一个时刻只能驻留在一个无线系统中 (称为 Single Radio), 比如当 UE驻留 在 LTE下的时候, 此时无法从 UTRAN/GERAN收到寻呼消息。 演进无线节点 (evolved NodeB, 简称 eNodeB)。演进的无线节点可以在空口上提供 比 UTRAN更高的上下行速率, 更低的传输延迟和更加可靠的无线传输。 eNodeB为终 端的接入提供无线资源, 同时和核心网 MME之间建立 S1控制面链接。 移动性管理实体 MME, 是一个控制面实体, 临时存储用户数据的服务器, 负责 管理和存储 UE 上下文(比如 UE/用户标识, 移动性管理状态, 用户安全参数等), 为 用户分配临时标识全球唯一临时标识 (Globally Unique Temporary Identity, 简称为 GUTI ), MME负责用户从 LTE接入的时候对用户进行鉴权。
SAE网关 (SAE Gateway, 简称 SAE GW), 是一个用户面实体, 负责用户面数据 路由处理。 SAE GW一般分为服务网关(Serving GW)和分组数据网网关(Packet Data Network GateWay, 简称为 PDN GW), Serving GW负责 LTE和通用移动通信系统
(Universal Mobile Telecommunications System, 简称为 UMTS) 之间移动性的锚点, 空闲状态下下行数据触发 MME和服务 GPRS 支持节点 (Serving GPRS Supporting Node, 简称为 SGSN)寻呼; PDN GW负责 UE接入分组数据网 PDN的网关功能, 为 用户分配用户 IP (Internet Protocol)地址。 PDN GW和 Serving GW可能合设在一个物 理实体中。 归属用户服务器 (home subscriber server, 简称为 HSS), 设置为保存用户的签约 数据, 同时记录用户所在的 MME名称 (MME NAME)。 图 1同时给出了传统的电路域交换网络的构架。 其中, 核心网网元有移动交换中 心 (Mobile Switching Center,简称 MSC)和拜访位置寄存器(Visitor Location Register, 简称 VLR), MSC和 VLR物理上一般合在一起。
3G无线接入控制器(Radio Network Controller,简称为 RNC)或者基站控制器(Base Station Controller, 简称为 BSC), 负责控制和管理用户的无线活动。 传统电路域交换网络使用归属位置寄存器(Home Location Register,简称为 HLR) 保存用户的签约信息和 VLR的地址。 在被叫呼叫中, HLR可以从 VLR获得用户的动 态漫游号码 (Mobile Subscriber Roaming Number, 简称为 MSRN)。 如图 1所示, HLR 和 HSS由一个物理网元担任。 关口移动交换中心 (Gateway Mobile Switching Center, 简称为 GMSC) 设置为路 由呼叫到用户所在的 MSC。 当有到移动用户的呼叫时, GMSC通过 HLR获得用户的 MSRN, 按后按照 MSRN路由呼叫。 在 SAE的 MME网元和传统电路域交换网络的 VLR之间, 通过 SGs接口连接。
SAE网络替代传统电路域交换网络是一个长期趋势。 在这个过程中, 由于传统电 路域交换网络无线覆盖较好, 服务较为稳定, 所以它是 SAE网络的有效补充。 当 SAE 无法提供满意的传统语音业务时, 可以转而由传统电路域交换网络提供有关服务。 这 种回退到传统电路域交换网络的机制叫做电路交换回落技术 (Circuit Switch Fallback, 简称为 CSFB )。能够回落到传统电路域交换网络进行业务的 UE称为双模单频 UE( Dual Mode Single Radio UE)。 CSFB技术在 SAE的 MME和传统电路域交换网络的 VLR之 间, 搭建 SGs接口。 通过该接口, MME可以让 LTE下漫游的 UE触发传统电路域交 换网络的位置更新流程, 从而使 UE在 SAE活动的同时, 在传统电路域交换网络进行 注册。 如图 2所示, 该过程包括如下步骤: 步骤 S202: LTE下的 UE开机或者改变了跟踪区 (Tracking Area, 简称为 TA), 发起开机 (ATTACH) 或者跟踪区更新 (Tracking Area Update, 简称为 TAU) 操作。 步骤 S204: MME收到上述消息, 进行 SAE内到 HSS的注册。 步骤 S206: 注册成功后, MME通过 UE所在的跟踪区, 推导出 UE在传统电路 域交换网络中的位置区 (Location Area Identity, 简称为 LAI), 并定位到对应的 VLR。 通过 SGs接口, MME发送位置更新请求到该 VLR。 步骤 S208: 如果 VLR没有用户数据, 或者 VLR认为用户数据不可靠, VLR发送 位置更新请求到 HLR。 步骤 S210: HLR将用户数据插入到 VLR, VLR记录用户签约数据, 并返回应答。 步骤 S212: HLR返回位置更新的成功应答, 记录用户所在 VLR的号码。 步骤 S214: VLR返回位置更新完成消息到 MME, 并将 SGs接口的状态修改为激 活。 用户在 HLR注册后,就能够以 CSFB的方式接收来自传统电路域交换网络的非呼 叫类业务, 图 3示出了 VLR收到提供用户信息 (Provide Subscriber Info, 简称为 PSI) 后的处理流程, 如图 3所示, 上述流程包括如下步骤: 步骤 S302: VLR收到 HLR发送的 PSI消息, 由于 UE通过 SGs接口位置更新, 注册到 VLR上, VLR发送 SGs接口寻呼消息 (Paging) 到 MME。 步骤 S304: MME在 LTE下发起寻呼过程, 收到寻呼的 UE返回扩展业务请求 (Extended Service Request) 0 步骤 S306: MME返回 SGs接口业务请求消息 (SGs Service Request)到 VLR。 步骤 S308: 寻呼后的 UE回退到电路域, 从传统电路域交换网络发起寻呼应答。
S310: 收到寻呼应答的 VLR, 获取用户位置, 返回 PSI应答消息到 HLR。 在上述过程中, UE为了接收电路域交换网络业务, 从 LTE网络转换到传统电路 域交换网络, 然而, 这个过程增加了网络的消息流量, 并有可能导致 UE在 LTE网络 业务的中断, 这对网络来说, 是非常低效的做法。 同样的问题, 也存在于 UE接收被 叫方式呼叫无关补充业务时。 针对相关技术中上述至少之一的问题, 目前尚未提出有效的解决方案。 发明内容 本发明实施例提供了一种电路域交换网络业务的处理方法、 装置及 MME, 以至 少解决相关技术中 UE为了接收电路域交换网络业务, 需回落到传统电路域交换网络 的问题。 根据本发明的一个实施例,提供了一种电路域交换网络业务的处理方法,其包括: 移动性管理单元接收到进行电路域交换网络业务的请求; 上述移动性管理单元与上述 请求对应的用户设备进行交互, 处理上述电路域交换网络业务。 优选地, 上述移动性管理单元接收到拜访位置寄存器 VLR转发的上述请求。 优选地, 上述移动性管理单元接收到进行电路域交换网络业务的请求之前, 上述 电路域交换网络业务的处理方法还包括:上述移动性管理单元接收到上述 VLR发送的 寻呼消息, 其中, 上述寻呼消息包括第一指示信息, 其中, 上述第一指示信息用于指 示上述 VLR支持上述电路域交换网络业务的转发; 上述移动性管理单元向上述 VLR 发送第二指示信息, 其中, 上述第二指示信息用于指示上述移动性管理单元支持上述 电路域交换网络业务的转发, 并接收上述 VLR转发的上述电路域交换网络业务。 优选地, 上述移动性管理单元与上述请求对应的用户设备进行交互, 处理上述电 路域交换网络业务包括:上述电路域交换网络业务为提供用户信息 PSI业务的情况下, 上述移动性管理单元获取上述用户设备的用户信息; 上述移动性管理单元将上述用户 信息反馈给上述 VLR。 优选地, 上述移动性管理单元与上述请求对应的用户设备进行交互, 处理上述电 路域交换网络业务包括: 上述电路域交换网络业务为呼叫无关补充业务的情况下, 上 述移动性管理单元将呼叫无关补充业务请求的补充内容发送给上述用户设备来执行上 述呼叫无关补充业务; 上述移动性管理单元将上述用户设备的执行结果反馈给上述 VLR。 优选地, 上述移动性管理单元接收到进行电路域交换网络业务的请求之前, 上述 电路域交换网络业务的处理方法还包括:上述移动性管理单元接收到上述 VLR发送的 寻呼消息, 其中, 上述寻呼消息包括第三指示信息, 其中, 上述第三指示信息用于指 示上述 VLR不支持上述电路域交换网络业务的转发; 和 /或上述移动性管理单元向上 述 VLR发送第四指示信息,其中, 上述第四指示信息用于指示上述移动性管理单元不 支持上述电路域交换网络业务的转发; 上述移动性管理单元触发将上述用户设备回落 到电路域交换网络的流程。 根据本发明的另一实施例,提供了一种电路域交换网络业务的处理装置,其包括: 第一接收模块, 设置为接收进行电路域交换网络业务的请求; 处理模块, 设置为与上 述请求对应的用户设备进行交互, 处理上述电路域交换网络业务。 优选地, 上述电路域交换网络业务的处理装置还包括: 第二接收模块, 设置为接 收到拜访位置寄存器 VLR发送的寻呼消息, 其中, 上述寻呼消息包括第一指示信息, 其中, 上述第一指示信息用于指示上述 VLR支持上述电路域交换网络业务的转发; 发 送模块, 设置为向上述 VLR发送第二指示信息, 其中, 上述第二指示信息用于指示上 述移动性管理单元支持上述电路域交换网络业务的转发,并接收上述 VLR转发的上述 电路域交换网络业务。 优选地, 上述处理模块包括: 处理单元, 设置为上述电路域交换网络业务为提供 用户信息 PSI业务的情况下, 获取上述用户设备的用户信息; 发送单元, 设置为将上 述用户信息反馈给上述 VLR。 根据本发明的又一实施例, 提供了一种 MME, 其包括: 上述任一种电路域交换 网络业务的处理装置。 在本发明实施例中, 由移动性管理单元接收进行电路域交换网络业务的请求, 并 与上述请求对应的用户设备进行交互, 处理上述电路域交换网络业务, 实现了 UE不 回落, 也能接收电路域交换网络业务的问题, 避免了将 UE回落到电路域交换网络来 接收电路域交换网络业务, 从而降低网络消耗, 提高网络效率, 有助于改善用户体验。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中- 图 1是根据相关技术的 SAE和传统电路域交换网络的构架示意图; 图 2是根据相关技术的 LTE下 UE进行传统电路域交换网络注册的交互图; 图 3是根据相关技术的 LTE下 UE回落到传统电路域交换网络, 接收传统电路域 交换网络的 PSI请求的交互图; 图 4是根据本发明实施例的电路域交换网络业务的处理方法的流程图; 图 5是根据本发明实施例的电路域交换网络业务的处理装置的结构框图; 图 6是根据本发明实施例的另一种电路域交换网络业务的处理装置的结构框图; 图 7是根据本发明实施例的使用电路域交换网络业务的处理方法处理 PSI业务的 交互图; 以及 图 8是根据本发明实施例的使用电路域交换网络业务的处理方法处理呼叫无关补 充业务的交互图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 本实施例提供了一种电路域交换网络业务的处理方法, 如图 4所示, 该电路域交 换网络业务的处理方法包括步骤 S402至步骤 S404。 步骤 S402: 移动性管理单元接收到进行电路域交换网络业务的请求。 步骤 S404: 移动性管理单元与请求对应的用户设备进行交互, 处理电路域交换网 络业务。 通过上述步骤, 由移动性管理单元接收进行电路域交换网络业务的请求, 并与上 述请求对应的用户设备进行交互, 处理上述电路域交换网络业务, 实现了 UE不回落, 也能接收电路域交换网络业务的问题, 避免了将 UE回落到电路域交换网络来接收电 路域交换网络业务, 从而降低网络消耗, 提高网络效率, 有助于改善用户体验。 优选地, 上述移动性管理单元接收到 VLR转发的上述请求。 优选地, 上述 VLR 可以通过 SGs接口将上述请求转发给上述移动性管理单元。 为了顺利完成上述电路域交换网络业务的转发, 在本优选实施例中, 上述移动性 管理单元接收到进行电路域交换网络业务的请求之前, 上述电路域交换网络业务的处 理方法还包括: 上述移动性管理单元接收到上述 VLR发送的寻呼消息, 其中, 上述寻 呼消息包括第一指示信息,其中, 上述第一指示信息用于指示上述 VLR支持上述电路 域交换网络业务的转发; 上述移动性管理单元向上述 VLR发送第二指示信息, 其中, 上述第二指示信息用于指示上述移动性管理单元支持上述电路域交换网络业务的转 发, 并接收上述 VLR转发的上述电路域交换网络业务。 优选地, 上述移动性管理单元与上述请求对应的用户设备进行交互, 处理上述电 路域交换网络业务包括:上述电路域交换网络业务为提供用户信息 PSI业务的情况下, 上述移动性管理单元获取上述用户设备的用户信息; 上述移动性管理单元将上述用户 信息反馈给上述 VLR。优选地, 上述移动性管理单元可以通过 SGs接口将上述用户信 息反馈给上述 VLR。 优选地, 上述移动性管理单元与上述请求对应的用户设备进行交互, 处理上述电 路域交换网络业务包括: 上述电路域交换网络业务为呼叫无关补充业务的情况下, 上 述移动性管理单元将呼叫无关补充业务请求的补充内容发送给上述用户设备来执行上 述呼叫无关补充业务; 上述移动性管理单元将上述用户设备的执行结果反馈给上述 VLR。 优选地, 上述移动性管理单元可以通过 SGs接口将上述用户设备的执行结果反 馈给上述 VLR。 为了提高网络效率, 在本优选实施例中, 上述移动性管理单元接收到进行电路域 交换网络业务的请求之前, 上述电路域交换网络业务的处理方法还包括: 上述移动性 管理单元接收到上述 VLR发送的寻呼消息, 其中, 上述寻呼消息包括第三指示信息, 其中, 上述第三指示信息用于指示上述 VLR不支持上述电路域交换网络业务的转发; 和 /或上述移动性管理单元向上述 VLR发送第四指示信息, 其中, 上述第四指示信息 用于指示上述移动性管理单元不支持上述电路域交换网络业务的转发; 上述移动性管 理单元触发将上述用户设备回落到电路域交换网络的流程。 本优选实施例提供了一种电路域交换网络业务的处理装置, 如图 5所示, 该电路 域交换网络业务的处理装置包括: 第一接收模块 502, 设置为接收进行电路域交换网 络业务的请求; 处理模块 504, 连接至第一接收模块 502, 设置为与所述请求对应的用 户设备进行交互, 处理所述电路域交换网络业务。 在上述优选实施例中,由第一接收模块 502接收进行电路域交换网络业务的请求, 处理模块 504与上述请求对应的用户设备进行交互, 处理上述电路域交换网络业务, 实现了 UE不回落, 也能接收电路域交换网络业务的问题, 避免了将 UE回落到电路 域交换网络来接收电路域交换网络业务, 从而降低网络消耗, 提高网络效率, 有助于 改善用户体验。 优选地, 上述第一接收模块 502接收到 VLR转发的上述请求。 为了顺利完成上述电路域交换网络业务的转发,在本优选实施例中, 如图 6所示, 上述电路域交换网络业务的处理装置还包括: 第二接收模块 506, 设置为接收到拜访 位置寄存器 VLR发送的寻呼消息, 其中, 所述寻呼消息包括第一指示信息, 其中, 所 述第一指示信息用于指示所述 VLR支持所述电路域交换网络业务的转发; 发送模块 508, 连接至第二接收模块 506, 设置为向所述 VLR发送第二指示信息, 其中, 所述 第二指示信息用于指示所述移动性管理单元支持所述电路域交换网络业务的转发, 并 接收所述 VLR转发的所述电路域交换网络业务。 优选地, 上述处理模块 504包括: 处理单元, 设置为所述电路域交换网络业务为 提供用户信息 PSI业务的情况下, 获取所述用户设备的用户信息; 发送单元, 连接至 处理单元, 设置为将所述用户信息反馈给所述 VLR。 优选地, 上述处理单元, 还设置为电路域交换网络业务为呼叫无关补充业务的情 况下, 将呼叫无关补充业务请求的补充内容发送给上述用户设备来执行上述呼叫无关 补充业务; 上述发送单元, 还设置为将上述用户设备的执行结果反馈给上述 VLR。 为了提高网络效率, 在本优选实施例中, 上述电路域交换网络业务的处理装置还 包括: 上述第二接收模块 506, 还设置为接收到上述 VLR发送的寻呼消息, 其中, 上 述寻呼消息包括第三指示信息,其中, 上述第三指示信息用于指示上述 VLR不支持上 述电路域交换网络业务的转发;和 /或上述发送模块 508,还设置为向上述 VLR发送第 四指示信息, 其中, 上述第四指示信息用于指示上述移动性管理单元不支持上述电路 域交换网络业务的转发;触发模块,连接至上述第二接收模块 506和 /或发送模块 508, 设置为触发将上述用户设备回落到电路域交换网络的流程。 在本优选实施例中,提供了一种 MME,该 MME包括上述任一电路域交换网络业 务的处理装置。 以下结合附图对上述各个优选实施例进行详细地描述。 在本优选实施例中, 上述移动性管理单元以 MME为例, 图 7是根据本发明实施 例的使用电路域交换网络业务的处理方法处理 PSI业务的交互图, 如图 7所示, 该处 理流程包括如下步骤: 步骤 S702: VLR收到 HLR发送的 PSI消息。 步骤 S704: 由于 UE通过 SGs接口位置更新, 注册到 VLR上, VLR发送 SGs接 口 Paging到 MME,其中,携带 VLR支持 PSI转发的标志(相当于上述第一指示信息)。 步骤 S706: MME在 LTE内部发起寻呼过程, UE返回扩展业务请求。 步骤 S708: MME判断本身支持 PSI的 SGs转发, 发送 SGs口业务请求到 VLR, 消息中携带 MME允许 PSI转发标志 (相当于上述第二指示信息)。 步骤 S710: VLR收到消息, 将 PSI业务请求(相当于上述进行电路域交换网络业 务的请求) 转发到 MME。 步骤 S712: MME获得 UE的信息, 在 PSI应答消息中返回给 VLR。 步骤 S714: VLR返回 PSI应答到 HLR。 在本优选实施例中, 上述移动性管理单元以 MME为例, 图 8是根据本发明实施 例的使用电路域交换网络业务的处理方法处理呼叫无关补充业务的交互图, 如图 8所 示, 该处理流程包括如下步骤: 步骤 S802: VLR收到 HLR发送的呼叫无关补充业务消息。 步骤 S804: 由于 UE通过 SGs接口位置更新, 注册到 VLR上, VLR发送 SGs接 口 Paging (寻呼消息)到 MME,其中携带 VLR支持呼叫无关补充业务转发的标志(相 当于上述第一指示信息)。 步骤 S806: MME在 LTE内部发起寻呼过程, UE返回扩展业务请求。 步骤 S808: MME判断本身支持呼叫无关补充业务的 SGs转发, 发送 SGs口业务 请求到 VLR, 消息中携带 MME允许呼叫无关补充业务转发标志 (相当于上述第二指 示信息)。 步骤 S810: VLR收到消息, 将呼叫无关补充业务业务请求(相当于上述进行电路 域交换网络业务的请求) 转发到 MME。 步骤 S812: MME将补充业务的内容发送给 UE, UE返回应答。 步骤 S814: MME将呼叫无关补充业务的执行结果返回给 VLR。 步骤 S816: VLR返回呼叫无关补充业务应答到 HLR。 优选实施例在 VLR处理非呼叫类业务时, 将用户回落后所注册的新 VLR地址, 传递给接收业务请求的原 VLR。 原 VLR根据该地址, 可以将业务请求转发给新 VLR 处理, 从而使业务能够正常进行。 从以上的描述中, 可以看出, 上述优选实施例实现了如下技术效果: 由移动性管 理单元接收进行电路域交换网络业务的请求,并与上述请求对应的用户设备进行交互, 处理上述电路域交换网络业务, 实现了 UE不回落, 也能接收电路域交换网络业务的 问题, 避免了将 UE回落到电路域交换网络来接收电路域交换网络业务, 从而降低网 络消耗, 提高网络效率, 有助于改善用户体验。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 并且在某些情况下, 可以以不同于此处 的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。 工业实用性 本发明提供的上述技术方案, 可以应用于交换网络业务的处理过程中, 采用由移 动性管理单元接收进行电路域交换网络业务的请求, 并与上述请求对应的用户设备进 行交互, 处理上述电路域交换网络业务的技术手段, 解决了相关技术中 UE为了接收 电路域交换网络业务, 需回落到传统电路域交换网络的问题, 从而降低网络消耗, 提 高网络效率。

Claims

权 利 要 求 书
1. 一种电路域交换网络业务的处理方法, 包括:
移动性管理单元接收到进行电路域交换网络业务的请求;
所述移动性管理单元与所述请求对应的用户设备进行交互, 处理所述电路 域交换网络业务。
2. 根据权利要求 1所述的方法, 其中, 所述移动性管理单元接收到拜访位置寄存 器 VLR转发的所述请求。
3. 根据权利要求 2所述的方法, 其中, 所述移动性管理单元接收到进行电路域交 换网络业务的请求之前, 还包括:
所述移动性管理单元接收到所述 VLR发送的寻呼消息,其中,所述寻呼消 息包括第一指示信息,其中,所述第一指示信息用于指示所述 VLR支持所述电 路域交换网络业务的转发;
所述移动性管理单元向所述 VLR发送第二指示信息,其中,所述第二指示 信息用于指示所述移动性管理单元支持所述电路域交换网络业务的转发, 并接 收所述 VLR转发的所述电路域交换网络业务。
4. 根据权利要求 2或 3所述的方法, 其中, 所述移动性管理单元与所述请求对应 的用户设备进行交互, 处理所述电路域交换网络业务包括:
所述电路域交换网络业务为提供用户信息 PSI业务的情况下, 所述移动性 管理单元获取所述用户设备的用户信息;
所述移动性管理单元将所述用户信息反馈给所述 VLR。
5. 根据权利要求 2或 3所述的方法, 其中, 所述移动性管理单元与所述请求对应 的用户设备进行交互, 处理所述电路域交换网络业务包括:
所述电路域交换网络业务为呼叫无关补充业务的情况下, 所述移动性管理 单元将呼叫无关补充业务请求的补充内容发送给所述用户设备来执行所述呼叫 无关补充业务;
所述移动性管理单元将所述用户设备的执行结果反馈给所述 VLR。 根据权利要求 2所述的方法, 其中, 所述移动性管理单元接收到进行电路域交 换网络业务的请求之前, 还包括:
所述移动性管理单元接收到所述 VLR发送的寻呼消息,其中,所述寻呼消 息包括第三指示信息,其中,所述第三指示信息用于指示所述 VLR不支持所述 电路域交换网络业务的转发; 和 /或
所述移动性管理单元向所述 VLR发送第四指示信息,其中,所述第四指示 信息用于指示所述移动性管理单元不支持所述电路域交换网络业务的转发; 所述移动性管理单元触发将所述用户设备回落到电路域交换网络的流程。 一种电路域交换网络业务的处理装置, 包括:
第一接收模块, 设置为接收进行电路域交换网络业务的请求;
处理模块, 设置为与所述请求对应的用户设备进行交互, 处理所述电路域 交换网络业务。 根据权利要求 7所述的装置, 其中, 还包括:
第二接收模块,设置为接收到拜访位置寄存器 VLR发送的寻呼消息,其中, 所述寻呼消息包括第一指示信息, 其中, 所述第一指示信息用于指示所述 VLR 支持所述电路域交换网络业务的转发;
发送模块, 设置为向所述 VLR发送第二指示信息, 其中, 所述第二指示信 息用于指示所述移动性管理单元支持所述电路域交换网络业务的转发, 并接收 所述 VLR转发的所述电路域交换网络业务。 根据权利要求 8所述的装置, 其中, 所述处理模块包括:
处理单元, 设置为所述电路域交换网络业务为提供用户信息 PSI业务的情 况下, 获取所述用户设备的用户信息;
发送单元, 设置为将所述用户信息反馈给所述 VLR。 一种移动性管理实体 MME, 包括: 权利要求 7至 9中任一项所述的装置。
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