WO2013139235A1 - 一种寻呼方法及装置 - Google Patents

一种寻呼方法及装置 Download PDF

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Publication number
WO2013139235A1
WO2013139235A1 PCT/CN2013/072677 CN2013072677W WO2013139235A1 WO 2013139235 A1 WO2013139235 A1 WO 2013139235A1 CN 2013072677 W CN2013072677 W CN 2013072677W WO 2013139235 A1 WO2013139235 A1 WO 2013139235A1
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WIPO (PCT)
Prior art keywords
paging
terminal
module
switching center
mobile switching
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Ceased
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PCT/CN2013/072677
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English (en)
French (fr)
Inventor
刘竞翔
朱进国
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ZTE Corp
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ZTE Corp
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Filing date
Publication date
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Priority to EP13764625.3A priority Critical patent/EP2806671A4/en
Priority to US14/379,438 priority patent/US9622212B2/en
Publication of WO2013139235A1 publication Critical patent/WO2013139235A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02Arrangements for increasing efficiency of notification or paging channel
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication
    • G06F21/41User authentication where a single sign-on provides access to a plurality of computers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/029Location-based management or tracking services
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2111Location-sensitive, e.g. geographical location, GPS
    • 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

Definitions

  • the present invention relates to a system and method for terminal fallback in the communication field, and in particular to a paging method and apparatus for returning from a SAE (System Architecture Evolution) network to a CS (Circuit Switched) call network.
  • SAE System Architecture Evolution
  • CS Circuit Switched
  • SAE System Architecture Evolution
  • 3GPP 3rd Generation Partnership Project
  • EPC Evolved Packet Core
  • UE User Equipment
  • UTRAN/GERAN Universal Terrestrial Radio Access Network/GSM (Global System for Mobile Communications)
  • EDGE Enhanced Data Rates for GSM Evolution
  • GSM Enhanced Data Rate Evolution Radio Access Network which refers to the GPRS (General Packet Radio Service) wireless network, where UTRAN stands for 3G network, GERAN stands for 2G network) and LTE wireless network
  • GPRS General Packet Radio Service
  • UTRAN stands for 3G network
  • GERAN stands for 2G network
  • LTE wireless network LTE wireless network
  • the UE Due to capacity limitations and energy-saving requirements, the UE can only reside in a wireless system (called Single Radio, single-frequency) at the same time. For example, when the UE resides in LTE, it cannot receive from UTRAN/GERAN. To the paging message.
  • the evolved Node B can provide higher uplink and downlink rates, lower transmission delay and more reliable wireless transmission on the air interface than UTRAN.
  • the eNodeB provides radio resources for the access of the terminal, and establishes an S1 control plane link with the core network MME (Mobility Management Entity).
  • MME Mobility Management Entity
  • Mobility Management Entity is a control plane entity that is a server that temporarily stores user data and is responsible for managing and storing UE contexts. For example, UE/user identification, mobility management status, and user security parameters, etc., assign temporary identifiers such as GUTI (Globally Unique Temporary Identity) to the user.
  • GUTI Globally Unique Temporary Identity
  • the MME is responsible for authenticating the user when the user accesses from the LTE network.
  • the SAE Gateway (System Architecture Evolution GW, SAE GW for short) is a user plane entity responsible for user plane data routing processing.
  • the SAE GW is generally divided into a Serving GW and a Packet Data Network (PDN) GW.
  • the Serving GW is responsible for the mobility anchor between LTE and UMTS (Universal Mobile Telecommunications System).
  • the downlink data triggers the MME and the SGSN (Serving GPRS Support Node) paging;
  • the PDN GW is responsible for the UE accessing the gateway function of the PDN (Packet Data Network), and assigns the user IP to the user. (Internet Protocol, Internet Protocol) address.
  • the PDN GW and the Serving GW may be combined in one physical entity.
  • the Home Subscriber Server (HSS) is used to store the user's subscription data and record the MME name of the user.
  • FIG 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).
  • MSC Mobile Switching Center
  • VLR Visitor Location Register
  • the 3G Radio Network Controller (RNC) and/or the Base Station Controller (BSC) are responsible for controlling and managing the user's wireless activities.
  • the traditional circuit domain switching network uses the Home Location Register (HLR) to store the subscriber's subscription information and the address of the VLR. During the called call, the HLR can obtain the mobile station roaming number (MSRN) of the user from the VLR.
  • HLR Home Location Register
  • MSRN mobile station roaming number
  • the HLR and HSS are served by one physical network element.
  • the Gateway Mobile Switching Center (GMSC) is used to route calls to the MSC where the user is located.
  • the GMSC obtains the user's MSRN through the HLR, and then routes the call according to the MSRN.
  • the SGs interface ie, the interface between the MME and the MSC
  • the SGs interface is connected.
  • the replacement of traditional circuit domain switching networks by SAE networks is a long-term trend. In this process, because the traditional circuit domain switching network has better wireless coverage and stable service, it is an effective complement to the SAE network.
  • the SAE network is unable to provide satisfactory traditional voice services, it can instead provide services by the traditional circuit domain switching network.
  • This mechanism for retreating to the traditional circuit domain switching network is called Circuit Switch Fallback (CSFB) technology.
  • CSFB Circuit Switch Fallback
  • the UE that can fall back to the traditional circuit domain switching network for service is called Dual Mode Single Radio.
  • the UE 0 CSFB technology establishes an SGs interface between the MME of the SAE network and the VLR of the legacy circuit domain switching network. Through the interface, the MME can enable the UE roaming under the 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 network is active. As shown in FIG. 2, the process includes the following steps.
  • Step 201 When the UE in the LTE is powered on or the Tracking Area (TA) is changed, the MME is started to perform the ATTACH or the Tracking Area Update (TAU) operation.
  • TA Tracking Area
  • TAU Tracking Area Update
  • Step 202 The MME receives the foregoing message, and performs registration of the SAE network to the HSS.
  • Step 203 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 location to the corresponding VLR. Through the SGs interface, the MME sends a location update request to the VLR.
  • LAI Location Area Identity
  • Step 204 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.
  • Step 205 The HLR sends an ISD (Insert Subscriber Data) request to the VLR, and the VLR records the user subscription data and returns a response.
  • ISD Intelligent Subscriber Data
  • Step 206 The HLR returns a success response of the location update, and records the number of the VLR where the user is located.
  • Step 207 The VLR returns a location update complete message to the MME, and modifies the status of the SGs interface to be activated.
  • the user can receive the called call from the traditional circuit domain switching network in the CSFB mode.
  • FIG. 3 specifically includes the following steps.
  • Step 301 After receiving the IAM (Initial Address Message) of the external network, the GMSC checks the called MSISDN (Mobile Station Integrated Services Digital). The Network (Mobile Integrated Services Digital Network) number (ie, the user's telephone number) finds the called HLR and sends an SRI (Send Routing Information) request to the HLR with the user's MSISDN number.
  • MSISDN Mobile Station Integrated Services Digital Network
  • SRI Send Routing Information
  • Step 302 The HLR finds the MSC/VLR registered by the user according to the MSISDN number, and sends a Request for Roaming Number (PRN) to the MSC/VLR.
  • the MSC/VLR is the MSC that the UE registers from the LTE/EPC network. VLR.
  • the MSC/VLR allocates the temporary user identity, MSRN, and returns it to the HLR.
  • the MSRN uniquely identifies the MSC/VLR and the called party.
  • Step 303 The HLR returns an SRI response to the GMSC, and carries the MSRN.
  • Step 304 The GMSC then routes the call to the MSC/VLR according to the MSRN.
  • Step 305 The MSC/VLR initiates a CS paging process from the SGs to the MME, and the MME then initiates a CS paging process within the LTE network, and returns a service request to the MSC/VLR.
  • Step 306 The UE rolls back to the circuit domain, and initiates a paging response from the traditional circuit domain switching network.
  • Step 307 If necessary, the MSC/VLR performs an access operation.
  • Step 308 The MSC/VLR sends a call setup request Setup to the UE.
  • Step 309 The MSC/VLR, the UE completes the remaining called establishment process.
  • the process includes the following steps.
  • Step 401 The HLR sends a PRN request to the MSC/VLR.
  • Step 402 The MSC/VLR receives the PRN request and finds that it does not have the user data, so sends an RSD (Recover Subscriber Data) request to the HLR.
  • RSD Recover Subscriber Data
  • Step 403 The HLR receives the RSD request, and sends an ISD request to the MSC/VLR, where the identifier of the MME where the user is located is included.
  • Step 404 The MSC/VLR records user data and returns an ISD response to the HLR.
  • Step 405 The HLR returns an RSD response to the MSC/VLR.
  • Step 406 The MSC/VLR returns a roaming number to the HLR.
  • Step 407 The MSC/VLR continues to perform call processing, and performs paging after receiving the initial address message, where the MME is located by using the MME identifier obtained from the HLR.
  • the HLR probably does not return the MME address.
  • the most common reason is that some operators are not willing to upgrade the HLR, so the VLR cannot obtain the information necessary for paging, and the call will fail.
  • an embodiment of the present invention provides a paging method, including: when a mobile switching center needs to page a user according to a service requirement, if it is found that user data is currently lost, analyzing the user identifier, determining the Whether the user has the possibility of long-term evolution network camping, if present, finding one or more mobility management entities that overlap with the coverage area of the mobile switching center itself, and sending the pair of terminals to the found mobility management entity Page message; and
  • paging processing is performed with a mobility management entity that sends the location update request or the service request.
  • the above method further has the following features: the mobile switching center, if receiving the location update request, performing the paging process with the mobility management entity that sends the location update request: the mobile switching center receives the After the location update request is processed, the paging message to the terminal is sent again to the mobility management entity that sends the location update request.
  • an embodiment of the present invention further provides a mobile switching center, which includes:
  • the first module is configured to: when paging the user according to the service requirement, if it is found that the user data has been lost, analyze the user identifier to determine whether the user has the possibility of the long-term evolution network camping;
  • a second module configured to: determine, in the first module, that the user has a long term evolution network In the case of the possibility of camping, find one or more mobility management entities that overlap with the coverage area of the mobile switching center itself;
  • a third module configured to: send, to the mobility management entity found by the second module, a paging message to the terminal;
  • a fourth module configured to: if receiving the location update request or the service request, perform paging processing with the mobility management entity that sends the location update request or the service request.
  • the fourth module is configured to perform paging processing by the mobility management entity that sends the location update request by: if the location update request is received, notifying the third after the location update request is processed Module
  • the third module is further configured to: after receiving the notification of the fourth module, send the paging message to the terminal again to the mobility management entity that sends the location update request.
  • an embodiment of the present invention further provides a paging processing method, including:
  • the mobility management entity receives a paging message to the terminal
  • Paging processing is performed according to whether there is local user data corresponding to the terminal.
  • the above method also has the following features:
  • the step of performing paging processing according to whether the user data corresponding to the terminal is locally included includes:
  • the mobility management entity determines whether there is local user data corresponding to the terminal, and if not, returns a paging reject message to the mobile switching center; if the local user data is corresponding to the terminal, the terminal searches for the terminal. call.
  • the method further has the following features: after the step of paging the terminal by the mobility management entity, the method further includes:
  • an embodiment of the present invention further provides a mobility management entity, including: a first module configured to receive a paging message to the terminal;
  • a second module configured to perform paging processing according to whether the user data corresponding to the terminal is locally generated.
  • the mobility management entity further has the following features:
  • the second module includes:
  • a first unit configured to determine whether there is user data corresponding to the terminal locally
  • a second unit configured to return a paging reject message to the mobile switching center if the first unit determines that there is no user data corresponding to the terminal locally;
  • a third unit configured to page the terminal if the first unit determines that the user data corresponding to the terminal exists locally.
  • the mobility management entity further has the following features:
  • the second module further includes:
  • a fourth unit configured to: determine whether the mobile switching center needs a temporary mobile subscriber identity, and if necessary, return an interface location update request to the mobile switching center; if the mobile switching center does not need the temporary mobile subscriber The identity returns a service request to the mobile switching center.
  • an embodiment of the present invention provides a paging method and apparatus for paging to a terminal under LTE if the VLR loses user data and the HLR fails to return the MME identity.
  • FIG. 1 is a block diagram of a prior art SAE network and a conventional circuit domain switching network.
  • FIG. 2 is a flow chart of a conventional circuit domain switching network registration performed by a user in LTE in the prior art.
  • FIG. 3 is a flowchart of a process of receiving an incoming call of a conventional circuit domain switching network when a user falls back to a traditional circuit domain switching network in the prior art in LTE.
  • FIG. 4 is a flowchart of a process of obtaining an MME identity of a UE from an HLR and initiating paging after the MSC/VLR loses user data in the prior art.
  • FIG. 5 is a flowchart of a paging method according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a paging method according to Embodiment 1 of the present invention.
  • FIG. 7 is a flowchart of a paging method according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic diagram of a mobile switching center according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of an MME according to an embodiment of the present invention. Preferred embodiment of the invention
  • FIG. 5 is a flowchart of a paging method according to an embodiment of the present invention. As shown in FIG. 5, the method in this embodiment includes the following steps.
  • Step 11 The MSC/VLR needs to page the UE according to the service requirement, but the user data has been lost.
  • the MSC/VLR analyzes the IMSI (International Mobile Subscriber Identification Number) and finds that the user has an LTE network station. The possibility of staying is such that one or more MMEs overlapping with the coverage area itself are found, and a paging message to the terminal is sent to the MME.
  • IMSI International Mobile Subscriber Identification Number
  • Step 12 The MME receives the paging message, and performs paging processing according to whether there is corresponding user data locally.
  • the MME After receiving the paging message, the MME returns the SGs interface service rejection if there is no data of the UE; if there is data of the UE, it returns an SGs interface location update request or a service request.
  • Step 13 After receiving the SGs interface location update request or service request, the MSC/VLR may determine that the UE performs paging processing with the MME through the connection with the MME under the MME, and performs subsequent service processing of the UE.
  • FIG. 6 is a flowchart of a paging method according to Embodiment 1 of the present invention.
  • the MSC/VLR after the MSC/VLR loses user data, the MSC/VLR sends a paging message to a series of MMEs, where one MME returns a service request, and the MSC/VLR confirms the UE. Under the MME, the processing of the call is turned on. Specifically, the following steps are included.
  • Step 501 After receiving the IAM (Initial Address Message) of the external network, the GMSC finds the called HLR according to the called MSISDN number (ie, the user's phone number), and sends an SRI (Send Routing Information) to the HLR. Routing information) request with the user's MSISDN number.
  • MSISDN number ie, the user's phone number
  • Step 502 The HLR finds the MSC/VLR registered by the user according to the MSISDN number, and sends a PRN (Prov. Roaming Number) request to the MSC/VLR.
  • PRN Prov. Roaming Number
  • Step 503 The MSC/VLR does not currently have user data, so the user data is recovered from the HLR. In the process, the HLR fails to return the MME identity to the MSC/VLR.
  • Step 504 After the user data is restored, the MSC/VLR returns the roaming number to the HLR.
  • Step 505 The HLR returns an SRI response to the GMSC, and carries the MSRN.
  • Step 506 The GMSC then routes the call to the MSC/VLR according to the MSRN.
  • Step 507 The MSC/VLR determines that the user data is lost in the foregoing, and therefore the user wireless state information is unreliable, and then analyzes the user identifier, and finds that the user may reside in the LTE network, so the MSC/VLR finds one that overlaps with the coverage area itself or The plurality of MMEs send an SGs interface paging message to the one or more MMEs.
  • Step 508 After receiving the paging request, the MME2 without the user information returns a page rejection.
  • Step 509 After receiving the paging request, the MME1 with the user information pages the terminal.
  • Step 510 After the paging is completed, the MME1 determines that the MSC/VLR does not need the TMSI, so returns a service request to the MSC/VLR.
  • the MSC/VLR receives the service request, confirms that the UE is under the MME1, and waits for the UE to fall back to the traditional circuit domain.
  • Step 511 The UE rolls back to the circuit domain, and initiates a paging response from the traditional circuit domain switching network.
  • Step 512 If necessary, the MSC/VLR performs an access operation.
  • Step 513 The MSC/VLR sends a call setup request Setup to the UE.
  • Step 514 The MSC/VLR, the UE completes the remaining called establishment process.
  • FIG. 7 is a flowchart of a paging method according to Embodiment 2 of the present invention.
  • the MSC/VLR after the MSC/VLR loses user data, the MSC/VLR sends a paging message to a series of MMEs, where one MME returns an SGs interface location update request, MSC/ The VLR confirms that the UE is under the MME and connects the call processing. Specifically, the following steps are included.
  • Step 601 After receiving the IAM (Initial Address Message) of the external network, the GMSC finds the called HLR according to the called MSISDN number (ie, the user's phone number), and sends an SRI (Send Routing Information) to the HLR. Routing information) request with the user's MSISDN number.
  • MSISDN number ie, the user's phone number
  • Step 602 The HLR finds the MSC/VLR registered by the user according to the MSISDN number, and sends a PRN (Provide Roaming Number) request to the MSC/VLR.
  • PRN Provide Roaming Number
  • Step 603 The MSC/VLR does not currently have user data, so the user data is recovered from the HLR. In the process, the HLR fails to return the MME identity to the MSC/VLR.
  • Step 604 After the user data is restored, the MSC/VLR returns the roaming number to the HLR.
  • Step 605 The HLR returns an SRI response to the GMSC and carries the MSRN.
  • Step 606 The GMSC then routes the call to the MSC/VLR according to the MSRN.
  • Step 607 The MSC/VLR determines that the user data is lost in the foregoing, and therefore the user wireless state information is unreliable, and then analyzes the user identifier, and finds that the user may reside in the LTE network, so the MSC/VLR finds one that overlaps with the coverage area itself or The plurality of MMEs send an SGs interface paging message to the one or more MMEs.
  • Step 608 After receiving the paging request, the MME2 without the user information returns a page rejection.
  • Step 609 After receiving the paging response, the MME1 with the user information pages the terminal.
  • Step 610 After paging, the MME1 determines that the MSC/VLR needs the TMSI, sends a deactivation message to the UE, and requests the UE to re-register.
  • Step 611 The UE initiates registration, and the MME1 sends an SGs interface location update request to the MSC/VLR.
  • Step 612 The MSC/VLR receives the SGs interface location update request, and confirms that the UE is in the MME1.
  • the location update process is processed, and the SGs interface location update acceptance is returned, which carries the TMSI.
  • Step 613 After the TMSI is accepted, the MME1 returns a TMSI Assignment Complete message to the MSC/VLR.
  • Step 614 The MSC/VLR re-pages, sends a paging message to the MME1, and waits for the UE to fall back to the traditional circuit domain.
  • Step 615 The MME1 sends a paging message to the UE, and the UE starts to fall back.
  • Step 616 The MME1 sends a service request to the MSC/VLR.
  • Step 617 The UE rolls back to the circuit domain, and initiates a paging response from the traditional circuit domain switching network.
  • Step 618 The MSC/VLR sends a call setup request Setup to the UE.
  • Step 619 The MSC/VLR and the UE complete the remaining called establishment process.
  • FIG. 8 is a schematic diagram of a mobile switching center according to an embodiment of the present invention. As shown in FIG. 8, the method includes: a first module, configured to: when a user is required to be paged according to a service requirement, if the user data is currently lost, , analyzing the user identifier to determine whether the user has the possibility of a long-term evolution network camping;
  • a second module configured to: find one or more mobility management entities that overlap with a coverage area of the mobile switching center itself if the first module determines that the user has the possibility of a long term evolution network camping;
  • a third module configured to: send an SGs interface paging message to the mobility management entity found by the second module;
  • a fourth module configured to: if receiving the location update request or the service request, perform paging processing with the mobility management entity that sends the location update request or the service request.
  • the fourth module is configured to perform paging processing by the mobility management entity that sends the location update request by: after receiving the location update request, notifying the after the location update request is processed Third module;
  • FIG. 9 is a schematic diagram of an MME according to an embodiment of the present invention. As shown in FIG. 9, the MME in this embodiment includes:
  • a first module configured to receive a paging message to the terminal
  • a second module configured to perform paging processing according to whether the user data corresponding to the terminal is locally generated.
  • the second module includes:
  • a first unit configured to determine whether there is user data corresponding to the terminal locally
  • a second unit configured to return a paging reject message to the mobile switching center if the first unit determines that there is no user data corresponding to the terminal locally;
  • a third unit configured to page the terminal if the first unit determines that the user data corresponding to the terminal exists locally.
  • the second module may further include:
  • a fourth unit configured to: determine whether the mobile switching center needs a temporary mobile subscriber identity, and if necessary, return an SGs interface location update request to the mobile switching center; if the mobile switching center does not need a temporary mobile subscriber identity And returning a service request to the mobile switching center.
  • the VLR transmits the dual-mode single-frequency UE identifier corresponding to the reset HLR to the MME, so that the MME can re-register the HLR in time after the UEs are active, thereby enabling the user to serve. It can recover as soon as possible and improve the service quality of the network.
  • Embodiments of the present invention provide a paging method and apparatus for paging to a terminal under LTE if the VLR loses user data and the HLR fails to return the MME identity.

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Abstract

本发明提供一种寻呼方法。所述方法包括:移动交换中心(MSC)根据业务要求需要对用户(UE)进行寻呼时,若发现目前已丢失用户数据,则分析用户标识,判断UE是否存在长期演进(LET)网络驻留的可能性,如存在,则找出和该MSC本身覆盖区域重叠的一个或多个移动性管理实体(MME),向所述MME发送对UE的寻呼消息(11)。本发明还提供了一种MSC,包括:第一模块、第二模块、第三模块以及第四模块。利用本发明的寻呼方法及装置,在拜访位置寄存器(VLR)丢失用户数据而归属用户服务器(HLR)未能返回MME标识的情况下,能成功寻呼到在LTE下的UE。

Description

一种寻呼方法及装置
技术领域
本发明涉及通讯领域终端回落的系统和方法, 尤其为从 SAE ( System Architecture Evolution, 系统构架演进) 网络回落到 CS ( Circuit Switched, 电 路交换)呼叫网络的寻呼方法及装置。 背景技术
SAE (系统构架演进) 网络是 3GPP ( 3rd Generation Partnership Project, 第三代合作伙伴计划)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,其包括 LTE( Long Term Evolution,长期演进)网络和 EPC( Evolved Packet Core, 演进的分组核心) 网络, 架构如图 1所示, 各网元的功能描述
^口下。
用户设备(User Equipment, 简称 UE ) , 具有能接入 UTRAN/GERAN ( Universal Terrestrial Radio Access Network/GSM ( Global system for Mobile Communications ) EDGE ( Enhanced Data rates for GSM Evolution ) Radio Access Network,通用地面无线接入网 /全球移动通信系统 GSM增强数据率演进无线 接入网, 指 GPRS ( General Packet Radio Service, 通用分组无线业务)的无线 网络, 其中 UTRAN代表 3G网络, GERAN代表 2G网络)和 LTE无线网络 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, 单频), 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。
演进的节点 B ( evolved NodeB, 简称 eNodeB ) , 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 ( Mobility Management Entity, 移动性管理实体)之间建立 S1控制面链接。
移动性管理实体 ( Mobility Management Entity, 简称 MME ) , 是一个控 制面实体, 是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、 以及用户安全参数等) , 为用户分配临 时标识如 GUTI ( Globally Unique Temporary Identity, 全球唯一临时标识) ,
MME负责用户从 LTE网络接入的时候对用户进行鉴权。
SAE网关 ( SAE Gateway, System Architecture Evolution GW, 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—般分为服 务网关( Serving GW )和分组数据网网关( Packet Data Network ( PDN ) GW ) , Serving GW负责 LTE和 UMTS( Universal Mobile Telecommunications System, 通用移动通信系统)之间移动性的锚点, 空闲状态下下行数据触发 MME和 SGSN ( Serving GPRS Support Node, GPRS服务支持节点)寻呼; PDN GW 负责 UE接入 PDN ( Packet Data Network , 分组数据网)的网关功能, 为用户 分配用户 IP ( Internet Protocol, 因特网协议)地址。 PDN GW和 Serving GW 可能合设在一个物理实体中。
HSS ( Home Subscriber Server, 归属用户服务器), 用于保存用户的签约 数据, 同时记录用户所在的 MME名称。
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无线网络控制器( Radio Network Controller, 简称 RNC )和 /或基站控 制器(Base Station Controller, 简称 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 HLR )保存用户的签约信息和 VLR的地址。 在被叫呼叫过程中, HLR可 以从 VLR获得用户的移动台漫游号码( Mobile Station Roaming Number, 简 称 MSRN ) 。 在图 1中, 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 GMSC )用 于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网络的 MME网元和传统电路域交换网络的 VLR之间,通过 SGs 接口 (即, MME与 MSC之间的接口)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性能较好, 服务较为稳定, 所以它是 SAE网 络的有效补充。 当 SAE网络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(Circuit Switch Fallback, 简称 CSFB)技术, 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(Dual Mode Single Radio ) UE0 CSFB技术在 SAE网络的 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网络活动的同时, 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 201、 LTE下的 UE开机或者改变了跟踪区( Tracking Area,简称 TA ) 时, 向 MME发起开机( ATTACH )或者跟踪区更新( Tracking Area Update , 简称 TAU )操作。
步骤 202、 MME收到上述消息, 进行 SAE网络到 HSS的注册。
步骤 203、 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标识(Location Area Identity, 简称 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 204、如果 VLR没有用户数据, 或者 VLR认为用户数据不可靠, 则 VLR发送位置更新请求到 HLR。
步骤 205、 HLR将发送 ISD ( Insert Subscriber Data, 插入用户数据)请 求到 VLR, VLR记录用户签约数据, 并返回应答。
步骤 206、 HLR返回位置更新的成功应答, 记录用户所在 VLR的号码。 步骤 207、 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 络的被叫呼叫, 该过程参见图 3 , 具体的包括如下步骤。
步骤 301、 GMSC在收到外网的 IAM ( Initial Address Message, 初始地址 消息)之后, 才艮据被叫 MSISDN ( Mobile Station Integrated Services Digital Network,移动台综合业务数字网)号码(即,用户电话号码)找到被叫 HLR, 并向 HLR发送 SRI ( Send Routing Information, 获取路由信息 )请求, 里面带 有用户的 MSISDN号码。
步骤 302、 HLR根据 MSISDN号码找到用户注册的 MSC/VLR, 并向该 MSC/VLR发送 PRN ( Provide Roaming Number, 提供漫游号码 )请求, 此时 MSC/VLR是 UE从 LTE/EPC网络注册的 MSC/VLR。 MSC/VLR分配临时用 户标识即 MSRN, 并返回给 HLR。 该 MSRN唯一标识 MSC/VLR以及被叫
UE。
步骤 303、 HLR返回 SRI响应给 GMSC, 并携带 MSRN。
步骤 304、 GMSC于是根据 MSRN将呼叫路由到 MSC/VLR。
步骤 305、 MSC/VLR从 SGs向 MME发起 CS寻呼过程, MME于是在 LTE网络内部发起 CS寻呼过程, 并返回业务请求给 MSC/VLR。
步骤 306、 UE回退到电路域,从传统电路域交换网络发起寻呼应答。
步骤 307、 如果需要, MSC/VLR进行接入操作。
步骤 308、 MSC/VLR将呼叫建立请求 Setup发送给 UE。
步骤 309、 MSC/VLR, UE完成剩下的被叫建立过程。
上述过程中, 如果传统电路域交换网络中的 MSC/VLR发生故障, 丟失 用户数据,则可以从 HLR恢复用户数据,其中包括 MME名称, 以进行寻呼。 如图 4所示, 该过程包括如下步骤。
步骤 401、 HLR发送 PRN请求到 MSC/VLR。
步骤 402、 MSC/VLR收到 PRN请求, 发现自身没有该用户数据, 所以 发送 RSD ( Recover Subscriber Data, 恢复用户数据 )请求到 HLR。
步骤 403、 HLR收到 RSD请求, 发送 ISD请求到 MSC/VLR, 其中包含 用户所在 MME的标识。
步骤 404、 MSC/VLR记录用户数据, 并向 HLR返回 ISD应答。
步骤 405、 HLR向 MSC/VLR返回 RSD应答。
步骤 406、 MSC/VLR向 HLR返回漫游号码。 步骤 407、 MSC/VLR继续进行呼叫处理,收到初始地址消息后进行寻呼, 其中使用从 HLR获得的 MME标识定位 MME。
但是在实际应用中, HLR很可能并不返回 MME地址, 最常见的原因是 一些运营商不愿意为 HLR升级, 这样 VLR无法获得寻呼所必需的信息, 呼 叫将会失败。
发明内容
本发明的目的是提供一种寻呼方法及装置, 以在 VLR丟失用户数据而 HLR未能返回 MME标识的情况下 , 寻呼到在 LTE下的终端。
为了解决上述技术问题, 本发明实施例提供了一种寻呼方法, 包括: 移动交换中心根据业务要求需要对用户进行寻呼时, 若发现当前已丟失 用户数据, 则分析用户标识, 判断所述用户是否存在长期演进网络驻留的可 能性, 如存在, 则找出和所述移动交换中心本身覆盖区域重叠的一个或者多 个移动性管理实体, 向所找出的移动性管理实体发送对终端的寻呼消息; 以 及
如接收到位置更新请求或业务请求, 则与发送所述位置更新请求或所述 业务请求的移动性管理实体进行寻呼处理。 上述方法还具有下面特点: 所述移动交换中心如接收到位置更新请求, 则与发送所述位置更新请求的移动性管理实体进行寻呼处理的步骤包括: 所述移动交换中心如接收到所述位置更新请求, 则在所述位置更新请求 处理完后, 再次发送所述对终端的寻呼消息到发送所述位置更新请求的移动 性管理实体。
为了解决上述技术问题, 本发明实施例还提供了一种移动交换中心, 包 括:
第一模块, 其设置成: 根据业务要求需要对用户进行寻呼时, 若发现当 前已丟失用户数据, 则分析用户标识, 判断所述用户是否存在长期演进网络 驻留的可能性;
第二模块, 其设置成: 在所述第一模块判断所述用户存在长期演进网络 驻留的可能性的情况下, 找出和所述移动交换中心本身覆盖区域重叠的一个 或者多个移动性管理实体;
第三模块, 其设置成: 向所述第二模块找出的所述移动性管理实体发送 对终端的寻呼消息; 以及
第四模块, 其设置成: 如接收到位置更新请求或业务请求, 则与发送所 述位置更新请求或所述业务请求的移动性管理实体进行寻呼处理。
上述移动交换中心还具有下面特点:
所述第四模块是设置成通过如下方式与发送位置更新请求的移动性管理 实体进行寻呼处理: 如接收到所述位置更新请求, 则在所述位置更新请求处 理完后通知所述第三模块;
所述第三模块还设置成: 接收到第四模块的通知后, 再次发送所述对终 端的寻呼消息到发送所述位置更新请求的移动性管理实体。
为了解决上述技术问题, 本发明实施例还提供了一种寻呼处理方法, 包 括:
移动性管理实体接收对终端的寻呼消息; 以及
根据本地是否有所述终端对应的用户数据进行寻呼处理。
上述方法还具有下面特点: 根据本地是否有所述终端对应的用户数据进 行寻呼处理的步骤包括:
所述移动性管理实体判断本地是否有所述终端对应的用户数据,如没有, 则向移动交换中心返回寻呼拒绝消息; 如本地有所述终端对应的用户数据, 则对所述终端进行寻呼。
上述方法还具有下面特点: 所述移动性管理实体对所述终端进行寻呼的 步骤之后, 所述方法还包括:
所述移动性管理实体判断所述移动交换中心是否需要临时移动用户标 识, 如需要, 则向所述移动交换中心返回接口位置更新请求; 如所述移动交 换中心不需要所述临时移动用户标识,则向所述移动交换中心返回业务请求。
为了解决上述问题, 本发明实施例还提供了一种移动性管理实体, 包括: 第一模块, 其设置成接收对终端的寻呼消息; 以及
第二模块, 其设置成根据本地是否有所述终端对应的用户数据进行寻呼 处理。
上述移动性管理实体还具有下面特点: 所述第二模块包括:
第一单元, 其设置成判断本地是否有终端对应的用户数据;
第二单元, 其设置成在所述第一单元判断本地没有终端对应的用户数据 的情况下, 向移动交换中心返回寻呼拒绝消息; 以及
第三单元, 其设置成在所述第一单元判断本地有终端对应的用户数据的 情况下, 对所述终端进行寻呼。
上述移动性管理实体还具有下面特点: 所述第二模块还包括:
第四单元, 其设置成: 判断所述移动交换中心是否需要临时移动用户标 识, 如需要, 则向所述移动交换中心返回接口位置更新请求; 如所述移动交 换中心不需要所述临时移动用户标识,则向所述移动交换中心返回业务请求。
综上, 本发明实施例提供一种寻呼方法及装置, 以在 VLR丟失用户数据 而 HLR未能返回 MME标识的情况下 , 寻呼到在 LTE下的终端。 附图概述
图 1是现有技术中 SAE网络和传统电路域交换网络的构架图。
图 2是现有技术中 LTE下用户进行传统电路域交换网络注册的流程图。 图 3是现有技术中 LTE下用户回落到传统电路域交换网络时, 接收传统 电路域交换网络的入呼叫的处理的流程图。
图 4是现有技术中 MSC/VLR丟失用户数据后, 从 HLR获得 UE所在的 MME标识 , 并发起寻呼的处理的流程图。
图 5为本发明实施例的寻呼方法的流程图。
图 6是本发明实施例一的寻呼方法的流程图。
图 7为本发明实施例二的寻呼方法的流程图。
图 8为本发明实施例的一种移动交换中心的示意图。 图 9为本发明实施例的 MME的示意图。 本发明的较佳实施方式
为使本发明的目的、 技术方案和优点更加清楚明白, 下文中将结合附图 对本发明的实施例进行详细说明。 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任意组合。
图 5为本发明实施例的寻呼方法的流程图, 如图 5所示, 本实施例的方 法包括下面步骤。
步骤 11 : MSC/VLR根据业务要求, 需要对 UE进行寻呼, 但是当前已经 丟失用户数据, MSC/VLR 根据 IMSI ( International Mobile Subscriber Identification Number, 国际移动用户识别码 )分析, 发现用户存在 LTE网络 驻留的可能性,故找出和本身覆盖区域重叠的一个或者多个 MME,并发送对 终端的寻呼消息到上述 MME。
步骤 12: MME接收到寻呼消息, 根据本地是否有对应的用户数据进行 寻呼处理。
MME收到寻呼消息后,如果其中没有该 UE的数据, 则返回 SGs接口业 务拒绝; 如果其中有 UE的数据, 则返回 SGs接口位置更新请求或者业务请 求。
步骤 13: MSC/VLR收到 SGs接口位置更新请求或者业务请求, 则可以 判定 UE在该 MME下, 通过和该 MME的连接, 与该 MME进行寻呼处理, 进行该 UE的后续业务处理。
其中, 如果 MME返回 SGs接口位置更新请求, 则 MSC/VLR先处理位 置更新请求, 在位置更新请求处理完成后, 再次发送 SGs接口寻呼消息到该 其中, MME返回 SGs接口位置更新请求或者业务请求是根据 MSC/VLR 是否需要使用 TMSI ( Temporary Mobile Subscriber Identity, 临时移动用户标 识 )来决定的。 如果 MSC/VLR需要 TMSI, 则 MME返回 SGs接口位置更新 请求, 如果 MSC/VLR不需要 TMSI, 则返回业务请求。 图 6是本发明实施例一的寻呼方法的流程图,本实施例中, MSC/VLR丟 失用户数据后,发送寻呼消息到一系列 MME,其中一个 MME返回业务请求, MSC/VLR确认 UE在该 MME下 , 并接通呼叫的处理过程。 具体包括如下步 骤。
步骤 501、 GMSC在收到外网的 IAM ( Initial Address Message, 初始地址 消息 )之后, 根据被叫 MSISDN号码(即, 用户电话号码 )找到被叫 HLR, 并向 HLR发送 SRI ( Send Routing Information, 获取路由信息 )请求, 里面带 有用户的 MSISDN号码。
步骤 502、 HLR根据 MSISDN号码找到用户注册的 MSC/VLR, 并向该 MSC/VLR发送 PRN ( Provide Roaming Number , 提供漫游号码)请求。
步骤 503、 MSC/VLR当前没有用户数据, 所以从 HLR恢复用户数据, 该过程中 , HLR未能将 MME标识返回给 MSC/VLR。
步骤 504、 恢复用户数据完成后, MSC/VLR返回漫游号码给 HLR。
步骤 505、 HLR返回 SRI响应给 GMSC, 并携带 MSRN。
步骤 506、 GMSC于是根据 MSRN将呼叫路由到 MSC/VLR。
步骤 507、 MSC/VLR判断前面丟失了用户数据, 因此用户无线状态信息 不可靠, 再分析用户标识, 发现用户可能在 LTE网络下驻留, 故 MSC/VLR 找出和本身覆盖区域重叠的一个或者多个 MME, 发送 SGs接口寻呼消息到 上述一个或者多个 MME。
步骤 508、 没有用户信息的 MME2在收到寻呼请求后, 返回寻呼拒绝。 步骤 509、 有用户信息的 MME1在收到寻呼请求后, 对终端进行寻呼。 步骤 510、 寻呼完成后, MME1判断 MSC/VLR不需要 TMSI, 所以返回 业务请求到 MSC/VLR。
MSC/VLR收到业务请求,确认 UE在该 MME1下,并等待 UE回落到传 统电路域。
步骤 511、 UE回退到电路域, 从传统电路域交换网络发起寻呼应答。 步骤 512、 如果需要, MSC/VLR进行接入操作。 步骤 513、 MSC/VLR将呼叫建立请求 Setup发送给 UE。
步骤 514、 MSC/VLR, UE完成剩下的被叫建立过程。
图 7为本发明实施例二的寻呼方法的流程图,本实施例中, MSC/VLR丟 失用户数据后,发送寻呼消息到一系列 MME,其中一个 MME返回 SGs接口 位置更新请求, MSC/VLR确认 UE在该 MME下, 并接通呼叫的处理过程。 具体包括如下步骤。
步骤 601、 GMSC在收到外网的 IAM ( Initial Address Message, 初始地址 消息 )之后, 根据被叫 MSISDN号码(即, 用户电话号码 )找到被叫 HLR, 并向 HLR发送 SRI ( Send Routing Information, 获取路由信息 )请求, 里面带 有用户的 MSISDN号码。
步骤 602、 HLR根据 MSISDN号码找到用户注册的 MSC/VLR, 并向该 MSC/VLR发送 PRN ( Provide Roaming Number, 提供漫游号码)请求。
步骤 603、 MSC/VLR当前没有用户数据, 所以从 HLR恢复用户数据, 该过程中 , HLR未能将 MME标识返回给 MSC/VLR。
步骤 604、 恢复用户数据完成后, MSC/VLR返回漫游号码给 HLR。
步骤 605、 HLR返回 SRI响应给 GMSC , 并携带 MSRN。
步骤 606、 GMSC于是根据 MSRN将呼叫路由到 MSC/VLR。
步骤 607、 MSC/VLR判断前面丟失了用户数据, 因此用户无线状态信息 不可靠, 再分析用户标识, 发现用户可能在 LTE网络下驻留, 故 MSC/VLR 找出和本身覆盖区域重叠的一个或者多个 MME, 发送 SGs接口寻呼消息到 上述一个或者多个 MME。
步骤 608、 没有用户信息的 MME2在收到寻呼请求后, 返回寻呼拒绝。 步骤 609、 有用户信息的 MME1在收到寻呼应答后, 对终端进行寻呼。 步骤 610、 寻呼之后, MME1判断 MSC/VLR需要 TMSI, 发送去激活消 息到 UE, 要求 UE重新注册。
步骤 611、UE发起注册, MME1发送 SGs接口位置更新请求到 MSC/VLR。 步骤 612、 MSC/VLR收到 SGs接口位置更新请求, 确认 UE在 MME1 下, 处理位置更新过程, 返回 SGs接口位置更新接受, 其中携带 TMSI。 步骤 613、 该 TMSI被接受后, MME1 返回 TMSI 分配完成消息到 MSC/VLR。
步骤 614、 MSC/VLR重新寻呼, 发送寻呼消息到上述 MME1 , 并等待 UE回落到传统电路域。
步骤 615、 MME1发送寻呼消息到 UE, UE开始回落。
步骤 616、 MME1发送业务请求到 MSC/VLR。
步骤 617、 UE回退到电路域,从传统电路域交换网络发起寻呼应答。
步骤 618、 MSC/VLR将呼叫建立请求 Setup发送给 UE。
步骤 619、 MSC/VLR、 UE完成剩下的被叫建立过程。
图 8为本发明实施例的一种移动交换中心的示意图, 如图 8所示, 包括: 第一模块, 其设置成: 根据业务要求需要对用户进行寻呼时, 若发现当 前已丟失用户数据, 则分析用户标识, 判断用户是否存在长期演进网络驻留 的可能性;
第二模块, 其设置成: 在所述第一模块判断用户存在长期演进网络驻留 的可能性的情况下, 找出和移动交换中心本身覆盖区域重叠的一个或者多个 移动性管理实体;
第三模块, 其设置成: 向所述第二模块找出的所述移动性管理实体发送 SGs接口寻呼消息; 以及
第四模块, 其设置成: 如接收到位置更新请求或业务请求, 则与发送所 述位置更新请求或业务请求的移动性管理实体进行寻呼处理。
其中, 所述第四模块是设置成通过如下方式与发送位置更新请求的移动 性管理实体进行寻呼处理: 如接收到所述位置更新请求, 则在所述位置更新 请求处理完后通知所述第三模块;
所述第三模块还设置成: 接收到第四模块的通知后, 再次发送所述 SGs 接口寻呼消息到发送所述位置更新请求的移动性管理实体。 图 9为本发明实施例的 MME的示意图, 如图 9所示, 本实施例的 MME 包括:
第一模块, 其设置成接收对终端的寻呼消息; 以及
第二模块, 其设置成根据本地是否有所述终端对应的用户数据进行寻呼 处理。
其中, 所述第二模块包括:
第一单元, 其设置成判断本地是否有终端对应的用户数据;
第二单元, 其设置成在所述第一单元判断本地没有终端对应的用户数据 的情况下, 向移动交换中心返回寻呼拒绝消息; 以及
第三单元, 其设置成在所述第一单元判断本地有终端对应的用户数据的 情况下, 对所述终端进行寻呼。
其中, 所述第二模块还可以包括:
第四单元, 其设置成: 判断所述移动交换中心是否需要临时移动用户标 识, 如需要, 则向所述移动交换中心返回 SGs接口位置更新请求; 如所述移 动交换中心不需要临时移动用户标识,则向所述移动交换中心返回业务请求。
本发明实施例通过在 HLR复位后 , VLR将复位的 HLR对应的双模单频 UE标识传递给 MME, 使 MME能够在这些 UE活动后, 及时的重新将其在 HLR注册, 从而使用户的服务能够尽快恢复, 提高网络的服务质量。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明实施例不限 制于任何特定形式的硬件和软件的结合。
以上仅为本发明的优选实施例, 当然, 本发明技术方案还可有其他多种 实施例, 在不背离本发明精神及其实质的情况下, 熟悉本领域的技术人员当 可根据本发明实施例作出各种相应的改变和变形, 但这些相应的改变和变形 都应属于本发明所附的权利要求的保护范围。
工业实用性
本发明实施例提供一种寻呼方法及装置,以在 VLR丟失用户数据而 HLR 未能返回 MME标识的情况下, 寻呼到在 LTE下的终端。

Claims

权 利 要 求 书
1、 一种寻呼方法, 包括:
移动交换中心根据业务要求需要对用户进行寻呼时, 若发现当前已丟失 用户数据, 则分析用户标识, 判断所述用户是否存在长期演进网络驻留的可 能性, 如存在, 则找出和所述移动交换中心本身覆盖区域重叠的一个或者多 个移动性管理实体, 向所找出的移动性管理实体发送对终端的寻呼 ; 以 及
如接收到位置更新请求或业务请求, 则与发送所述位置更新请求或所述 业务请求的移动性管理实体进行寻呼处理。
2、 如权利要求 1所述的方法, 其中: 所述移动交换中心如接收到位置更 新请求, 则与发送所述位置更新请求的移动性管理实体进行寻呼处理的步骤 包括:
所述移动交换中心如接收到所述位置更新请求, 则在所述位置更新请求 处理完后, 再次发送所述对终端的寻呼消息到发送所述位置更新请求的移动 性管理实体。
3、 一种移动交换中心, 包括:
第一模块, 其设置成: 根据业务要求需要对用户进行寻呼时, 若发现当 前已丟失用户数据, 则分析用户标识, 判断所述用户是否存在长期演进网络 驻留的可能性;
第二模块, 其设置成: 在所述第一模块判断所述用户存在长期演进网络 驻留的可能性的情况下, 找出和所述移动交换中心本身覆盖区域重叠的一个 或者多个移动性管理实体;
第三模块, 其设置成: 向所述第二模块找出的所述移动性管理实体发送 对终端的寻呼消息; 以及
第四模块, 其设置成: 如接收到位置更新请求或业务请求, 则与发送所 述位置更新请求或所述业务请求的移动性管理实体进行寻呼处理。
4、 如权利要求 3所述的移动交换中心, 其中: 所述第四模块是设置成通过如下方式与发送位置更新请求的移动性管理 实体进行寻呼处理: 如接收到所述位置更新请求, 则在所述位置更新请求处 理完后通知所述第三模块;
所述第三模块还设置成: 接收到第四模块的通知后, 再次发送所述对终 端的寻呼消息到发送所述位置更新请求的移动性管理实体。
5、 一种寻呼处理方法, 包括:
移动性管理实体接收对终端的寻呼消息; 以及
根据本地是否有所述终端对应的用户数据进行寻呼处理。
6、 如权利要求 5所述的方法, 其中: 根据本地是否有所述终端对应的用 户数据进行寻呼处理的步骤包括:
所述移动性管理实体判断本地是否有所述终端对应的用户数据,如没有, 则向移动交换中心返回寻呼拒绝消息; 如本地有所述终端对应的用户数据, 则对所述终端进行寻呼。
7、 如权利要求 6所述的方法, 其中: 所述移动性管理实体对所述终端进 行寻呼的步骤之后, 所述方法还包括:
所述移动性管理实体判断所述移动交换中心是否需要临时移动用户标 识, 如需要, 则向所述移动交换中心返回接口位置更新请求; 如所述移动交 换中心不需要所述临时移动用户标识,则向所述移动交换中心返回业务请求。
8、 一种移动性管理实体, 包括:
第一模块, 其设置成接收对终端的寻呼消息; 以及
第二模块, 其设置成根据本地是否有所述终端对应的用户数据进行寻呼 处理。
9、 如权利要求 8所述的移动性管理实体, 其中: 所述第二模块包括: 第一单元, 其设置成判断本地是否有终端对应的用户数据;
第二单元, 其设置成在所述第一单元判断本地没有终端对应的用户数据 的情况下, 向移动交换中心返回寻呼拒绝消息; 以及
第三单元, 其设置成在所述第一单元判断本地有终端对应的用户数据的 情况下, 对所述终端进行寻呼。
10、 如权利要求 9所述的移动性管理实体, 其中: 所述第二模块还包括: 第四单元, 其设置成: 判断所述移动交换中心是否需要临时移动用户标 识, 如需要, 则向所述移动交换中心返回接口位置更新请求; 如所述移动交 换中心不需要所述临时移动用户标识,则向所述移动交换中心返回业务请求。
PCT/CN2013/072677 2012-03-21 2013-03-15 一种寻呼方法及装置 Ceased WO2013139235A1 (zh)

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102612015B (zh) * 2012-03-21 2017-11-17 中兴通讯股份有限公司 一种寻呼方法及装置
WO2015010237A1 (zh) * 2013-07-22 2015-01-29 华为技术有限公司 位置更新处理方法及设备
CN104349302A (zh) * 2013-07-25 2015-02-11 中兴通讯股份有限公司 电路域回落业务中的漫游处理方法及网元
WO2016074163A1 (zh) * 2014-11-12 2016-05-19 华为技术有限公司 寻呼用户设备的方法和装置
CN106034357B (zh) * 2015-03-17 2019-07-16 北京佰才邦技术有限公司 异构网络下的寻呼方法、装置和通信系统
CN104883706A (zh) * 2015-05-08 2015-09-02 大唐移动通信设备有限公司 一种寻呼失败处理方法及装置
CN107071779A (zh) * 2017-04-13 2017-08-18 广东欧珀移动通信有限公司 伪基站识别方法、装置及终端
CN106851654B (zh) * 2017-04-13 2020-08-18 Oppo广东移动通信有限公司 伪基站识别方法、装置及终端
CN108966291B (zh) * 2017-05-17 2021-06-11 中兴通讯股份有限公司 电路域回落的恢复方法、装置、移动管理实体及用户终端
GB2586222A (en) 2019-08-05 2021-02-17 British Telecomm Classifier-based message routing in a telecommunications network
GB2586223A (en) * 2019-08-05 2021-02-17 British Telecomm Conditional message routing in a telecommunications network
US20240381162A1 (en) * 2023-05-13 2024-11-14 Cisco Technology, Inc. Dynamic selection and preservation of tid-to-link mapping in multi-link operations

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090036131A1 (en) * 2007-06-26 2009-02-05 John Diachina System and method for providing voice service in a multimedia mobile network
CN101577962A (zh) * 2008-07-10 2009-11-11 中兴通讯股份有限公司 一种关联关系更新的实现方法及相应终端
US20100323695A1 (en) * 2009-06-18 2010-12-23 Nokia Siemens Networks Oy Mobile management entity operating in communications network and selection method therefor
CN101969634A (zh) * 2010-06-12 2011-02-09 中兴通讯股份有限公司 一种用户数据的同步方法和系统
CN102045791A (zh) * 2009-10-17 2011-05-04 中兴通讯股份有限公司 一种eps中电路交换回落业务的实现方法和系统
CN102186158A (zh) * 2011-05-09 2011-09-14 中兴通讯股份有限公司 归属位置寄存器复位的处理方法及系统
WO2012045486A1 (en) * 2010-10-08 2012-04-12 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatuses for circuit switched fallback to a 2g/3g access network
CN102612015A (zh) * 2012-03-21 2012-07-25 中兴通讯股份有限公司 一种寻呼方法及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030027572A1 (en) * 2001-08-03 2003-02-06 Telefonaktiebolaget L M Ericsson (Publ) Method and system for primary paging location of mobile terminal
US8259673B2 (en) * 2007-06-19 2012-09-04 Telefonaktiebolaget L M Ericsson (Publ) System and method for providing voice service in a mobile network with multiple wireless technologies
JP5121624B2 (ja) * 2008-08-08 2013-01-16 株式会社エヌ・ティ・ティ・ドコモ 移動通信方法及び回線交換局
KR20100080288A (ko) * 2008-12-31 2010-07-08 엘지전자 주식회사 무선 통신 시스템에서 위치 갱신
CN107181582B (zh) * 2009-04-28 2020-07-31 三菱电机株式会社 移动通信系统
US8351964B2 (en) * 2009-06-30 2013-01-08 Alcatel Lucent Message delivery over LTE networks
US8948753B2 (en) * 2010-04-30 2015-02-03 Alcatel Lucent Method of providing notification of abnormal conditions during non-access stratum (NAS) message tunneling
US20110294526A1 (en) * 2010-05-27 2011-12-01 Alcatel-Lucent Usa Inc. Method And System Of Delivering A Mobile-Terminated SMS Message
EA201301323A1 (ru) * 2011-05-26 2014-08-29 Мавенир Системз, Инк. Межсетевое взаимодействие для восстановления коммутируемых цепей
US8588772B2 (en) * 2012-03-07 2013-11-19 Alcatel Lucent Circuit switch fallback (CSFB) during prepaging

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090036131A1 (en) * 2007-06-26 2009-02-05 John Diachina System and method for providing voice service in a multimedia mobile network
CN101577962A (zh) * 2008-07-10 2009-11-11 中兴通讯股份有限公司 一种关联关系更新的实现方法及相应终端
US20100323695A1 (en) * 2009-06-18 2010-12-23 Nokia Siemens Networks Oy Mobile management entity operating in communications network and selection method therefor
CN102045791A (zh) * 2009-10-17 2011-05-04 中兴通讯股份有限公司 一种eps中电路交换回落业务的实现方法和系统
CN101969634A (zh) * 2010-06-12 2011-02-09 中兴通讯股份有限公司 一种用户数据的同步方法和系统
WO2012045486A1 (en) * 2010-10-08 2012-04-12 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatuses for circuit switched fallback to a 2g/3g access network
CN102186158A (zh) * 2011-05-09 2011-09-14 中兴通讯股份有限公司 归属位置寄存器复位的处理方法及系统
CN102612015A (zh) * 2012-03-21 2012-07-25 中兴通讯股份有限公司 一种寻呼方法及装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI: "Discussion the paging procedure in CSFB when MME restarts", 3GPP TSG CT WGL MEETING #57, 9 February 2009 (2009-02-09), SAN ANTONIO (TX), USA, XP050310593 *
See also references of EP2806671A4 *

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