WO2012152129A1 - Procédé et système de traitement de réinitialisation d'un enregistreur de localisation nominal - Google Patents

Procédé et système de traitement de réinitialisation d'un enregistreur de localisation nominal Download PDF

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Publication number
WO2012152129A1
WO2012152129A1 PCT/CN2012/072697 CN2012072697W WO2012152129A1 WO 2012152129 A1 WO2012152129 A1 WO 2012152129A1 CN 2012072697 W CN2012072697 W CN 2012072697W WO 2012152129 A1 WO2012152129 A1 WO 2012152129A1
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WIPO (PCT)
Prior art keywords
hlr
mme
service
vlr
notification message
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Ceased
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PCT/CN2012/072697
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English (en)
Chinese (zh)
Inventor
刘竞翔
朱进国
李振东
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ZTE Corp
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ZTE Corp
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/30—Network data restoration; Network data reliability; Network data fault tolerance

Definitions

  • the present invention relates to communication technologies, and in particular, to a method and system for processing a home location register reset. Background technique
  • SAE System Architecture Evolution
  • 3GPP 3rd Generation Partnership Projective
  • LTE Long Term Evolution
  • EPC evolved packet core network
  • UE User Equipment
  • Universal Mobile Telecommunication System Radio Access UE
  • GERAN Radio Access Network
  • LTE Long Term Evolution
  • UTRAN stands for 3G
  • GERAN stands for 2G
  • UEs can only reside in one wireless system (called Single Radio) at the same time due to capacity limitations and energy saving requirements, such as when the UE resides in LTE
  • the paging message cannot be received from UTRAN/GERAN at this time.
  • An evolved NodeB (eNodeB) can provide a ratio on an air interface.
  • the UTRAN has higher uplink and downlink rates, lower transmission delay and more reliable wireless transmission.
  • the eNodeB provides radio resources for terminal access and establishes an S1 control plane link with the mobility management unit (MME) of the core network.
  • MME mobility management unit
  • Mobility Management Entity is a control plane entity that temporarily stores user data. It is responsible for managing and storing UE contexts (such as UE/user ID, mobility management status, and user security parameters). The user is assigned a temporary global identifier (GUTI), and the MME is responsible for authenticating the user when the user accesses from LTE.
  • the SAE Gateway System Architecture Evolution GW, SAE GW for short
  • the SAE GW is generally divided into a Serving GW and a Packet Data Network Gateway (PDN GW).
  • the Serving GW is responsible for the mobility anchor between LTE and UMTS. In the idle state, the downlink data triggers the MME and SGSN paging.
  • PDN GW responsible for the UE accessing the PDN (Packet Data Network) gateway function, assigning users the Internet Protocol (IP) address.
  • IP Internet Protocol
  • the home subscriber server (HSS) is used to store the user's subscription data and record the MME name (MME NAME) where the user is located.
  • 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) or base station controller (BSC) is responsible for controlling and managing the user's wireless activities.
  • the traditional circuit domain switching network uses a home location register (Home Location Register,
  • HLR Saves the user'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 used to route calls to the MSC where the user is located.
  • the GMSC obtains the subscriber's MSRN through the HLR and then routes the call according to the MSRN.
  • the SG network element of the SAE and the VLR of the traditional circuit domain switching network are connected through the SGs interface. Summary of the invention
  • the replacement of traditional circuit domain switching networks by SAE networks is a long-term trend. In this process, since the traditional circuit domain switching network has better wireless coverage and stable service, it is an effective supplement to the SAE network. When SAE is unable to provide satisfactory traditional voice services, it can be transferred to traditional circuit domains.
  • the exchange network provides related services. This mechanism of fallback to the traditional circuit domain switching network is called Circuit Switch Fallback (CSFB) technology.
  • CSFB Circuit Switch Fallback
  • a UE that can fall back to the 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 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 is active.
  • the process includes the following steps:
  • Step 201 The UE in the LTE is powered on or changes the Tracking Area (TA), and initiates an ATTACH or a Tracking Area Update (TAU) operation.
  • TA Tracking Area
  • TAU Tracking Area Update
  • Step 202 The MME receives the foregoing message, and performs registration in the SAE to the HSS.
  • Step 203 After the registration is successful, the MME derives a location area (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. The MME sends the location through the SGs interface. Update request to the VLR;
  • LAI location area
  • Step 204 If the VLR does not have 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 inserts the user data into the VLR, and the VLR records the user subscription data, and returns a response.
  • 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.
  • FIG. 3 specifically includes:
  • Step 301 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. Information) request, with the user's MSISDN number;
  • MSISDN number ie, the user's phone number
  • Step 302 The HLR finds the MSCWLR number registered by the user according to the MSISDN number, and sends a PRN (Provide Roaming Number) request to the MSCWLR.
  • the MSGWLR is the MSCWLR that the UE registers from the LTE/EPC; the MSCWLR allocates the temporary subscriber identity MSRN and returns it to the HLR.
  • the MSRN uniquely identifies the MSCWLR and the called UE;
  • Step 303 the HLR returns an SRI response to the GMSC, and the response carries the MSRN;
  • Step 304 The GMSC then routes the call to the MSCWLR according to the MSRN.
  • Step 305 The MSCWLR initiates a CS paging process from the SGs to the MME, where the MME is
  • LTE internally initiates a CS paging process
  • 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 MSCWLR performs an access operation.
  • Step 308 The MSCWLR sends a call setup request (Setup) to the UE.
  • Step 309 The MSCWLR, the RNC, and the UE complete the remaining called establishment process.
  • the HLR in the traditional circuit domain switching network may lose the user's dynamic data, including the number of the VLR of the user, in the event of a failure. This will cause the HLR to fail to obtain the MSRN from the VLR and the subscriber will therefore not be called as a call.
  • the HLR in the traditional circuit domain switching network sends a reset message (RESET) to the VLR after the restart, and the VLR receives the user data to be unreliable.
  • RESET reset message
  • the VLR will initiate a location update operation to the HLR, so that the HLR regains the VLR number of the user.
  • the above method can effectively solve the HLR restart problem in the traditional circuit domain switching network.
  • the MME initiates a flow to the VLR only when the UE is powered on or changes the tracking area. Therefore, if the UE does not move, and does not restart, the VLR The location update message will not be received and will not be registered with the HLR. As a result, the restarted HLR cannot obtain the VLR number, and the user will not be able to receive incoming calls from the traditional circuit domain switched network for a long time.
  • the present invention provides a method and system for processing an HLR reset, so as to solve the problem that a UE residing in LTE cannot perform a call reception circuit domain switching network incoming call after the HLR of the traditional circuit domain switching network is restarted.
  • the invention provides a processing method for HLR reset, which is applied to a call fallback system, the party The law includes:
  • the visitor location register sends a notification message to the mobile management entity (MME) upon receiving a reset notification message from the HLR.
  • the notification message carries identification information of a user equipment (UE) registered at the HLR, and the identifier information includes an International Mobile Subscriber Identity (IMSI) identifier or an IMSI number segment.
  • IMSI International Mobile Subscriber Identity
  • the method further includes: the MME marking the UE according to the identifier information.
  • the method further includes: when the UE performs a service, initiate a location update procedure, and re-register the UE to the
  • the HLR wherein the service includes one or more of a booting service, a change tracking area service, a call service, and a periodic tracking area update service.
  • the method further includes: deleting, by the MME, the marking performed on the UE.
  • the present invention also provides a processing system for resetting a home location register (HLR), which is applied to a call drop system, the system comprising a visitor location register (VLR) and a mobility management entity (MME), wherein:
  • HLR home location register
  • VLR visitor location register
  • MME mobility management entity
  • the VLR is configured to: send a notification message to the MME after receiving a reset notification message from the HLR.
  • the notification message carries identification information of a user equipment (UE) registered at the HLR, and the identifier information includes an International Mobile Subscriber Identity (IMSI) identifier or an IMSI number segment.
  • IMSI International Mobile Subscriber Identity
  • the MME is further configured to: after the VLR sends a notification message to the MME, mark the UE according to the identifier information.
  • the MME is further configured to: after marking the UE, when the UE performs a service, initiate the location update process, and re-register the UE to the HLR; where the service includes Start up business, change tracking area business, call service and periodic tracking area update industry One or several of the tasks.
  • the MME is further configured to: after the UE is successfully re-registered to the HLR, delete the marking performed on the UE.
  • the method and the system notify the MME where the UE is located, so that the MME can re-initiate the location update and register the UE to the HLR. In this way, the HLR obtains the corresponding VLR number, so that the call routing can be correctly performed when the user is called.
  • Figure 1 shows the architecture of SAE and traditional circuit domain switching networks
  • FIG. 2 is a signaling flow chart of a user performing a traditional circuit domain switching network registration process in LTE
  • FIG. 3 is a signaling flow chart of a user returning to a traditional circuit domain switching network under LTE, and receiving a traditional circuit domain switching network incoming call processing process
  • FIG. 4 is a signaling flowchart of a user re-registering to a traditional circuit domain switching network in LTE after the HLR is reset according to an embodiment of the present invention.
  • the present invention provides a method for processing a home location register (HLR) reset, which is applied to a call drop system, the method comprising: a visit location register (VLR) to a mobility management entity after receiving a reset notification message from the HLR (MME) sends a notification message.
  • HLR home location register
  • MME reset notification message
  • the method further includes: resetting the HLR of the traditional circuit domain switching network, and sending a reset notification message to the VLR after the restarting;
  • the VLR retrieves the UE registered in the HLR and camps on the LTE, and sends a notification message that the HLR is reset to the corresponding MME through the SGs interface, and the notification message carries the message.
  • Identification information of the UE where the IMSI may be used as the identifier of the user; or may carry multiple IMSI identifiers, and may also carry the number segment of the IMSI for the MME to retrieve the user that needs to be marked as "HLR reset"; meanwhile, the VLR sets the UE Unreliable for user data.
  • the MME After receiving the notification message, the MME marks the UE as "HLR reset"; when the UE performs the service under LTE, the MME sends a location update message to the VLR; after the VLR receives, the UE is unreliable because the user data is set. , so initiate a location update to the HLR.
  • the foregoing services include, but are not limited to, the following services: power-on service, change tracking area service, call service, and periodic tracking area update service.
  • the present invention After the reset of the HLR, the present invention notifies the MME of the UE to the MME, so that the MME can re-initiate the location update in time and register the UE with the HLR. In this way, the HLR obtains the corresponding VLR number, so that the call routing can be correctly performed when the user is called.
  • the signaling flow chart of the user re-registering to the traditional circuit domain switching network after the HLR reset is implemented in the present invention, the process includes:
  • Step 401 The HLR restarts after resetting, and sends a reset notification to the VLR;
  • Step 402 The VLR searches for the UE registered in the HLR, and marks the UE as user data is unreliable. If the UE is active under LTE, that is, the SGs port status of the UE is activated, the VLR sends the MME identity according to the recorded MME identity. The notification message is sent to the MME, where the identifier of the UE is carried. If there are multiple UEs, the message may carry the identifier of multiple UEs or the number segment identified by the UE. Step 403: The MME receives the message, marking the UE as "HLR reset. Step 404: When the UE performs the service, in this embodiment, the service performs periodic TAU for the UE.
  • Step 405 After the periodic TAU succeeds, the MME sends a location update request to the VLR.
  • Step 407 The HLR reinserts the user data.
  • Step 408 The VLR saves the user data, and returns to insert the user data successfully.
  • Step 409 The HLR saves the VLR number, and returns the location update accept; the UE re-registers successfully in the HLR; Steps 405 to 409 are the same as the prior art processing;
  • Step 410 The VLR returns a location update success response to the MME, and the MME deletes the "HLR occurrence reset flag" of the user.
  • the VLR After the HLR is reset, 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, so that the user's service can be restored as soon as possible. Improve the quality of service of the network.
  • the present invention also provides a processing system for resetting a home location register (HLR), which is applied to a call drop system, the system comprising a visitor location register (VLR) and a mobility management entity (MME), wherein:
  • HLR home location register
  • VLR visitor location register
  • MME mobility management entity
  • the VLR is configured to send a notification message to the MME after receiving a reset notification message from the HLR.
  • the notification message carries the identification information of the user equipment (UE) registered in the HLR, and the identifier information includes an International Mobile Subscriber Identity (IMSI) identifier or an IMSI number segment.
  • IMSI International Mobile Subscriber Identity
  • the MME is further configured to mark the UE according to the identifier information after the VLR sends a notification message to the MME.
  • the MME is further configured to: after marking the UE, when the UE performs a service, initiate the location update process, and re-register the UE to the HLR; where the service includes One or several of the startup service, the change tracking area service, the call service, and the periodic tracking area update service.
  • the MME is further configured to delete the label that is performed on the UE after the UE is successfully re-registered to the HLR.
  • the VLR in the above system notifies the MME to the MME where the UE is located, so that the MME can re-initiate the location update in time and register the UE with the HLR. In this way, the HLR obtains the corresponding VLR number, so that the call routing can be correctly performed when the user is called.
  • the method and the system notify the MME where the UE is located, so that the MME can re-initiate the location update in time to register the UE with the HLR. In this way, the HLR obtains the corresponding VLR number, so that the call routing can be correctly performed when the user is called.

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

Abstract

L'invention concerne un procédé et un système de traitement de réinitialisation d'un enregistreur de localisation nominal (HLR), qui s'appliquent à un système de libération de communication. Selon ledit procédé de traitement de réinitialisation d'un HLR, un enregistreur de localisation de visiteurs (VLR) envoie à une entité de gestion de la mobilité (MME), suite à la réception d'un message de notification de réinitialisation en provenance d'un HLR, un message de notification. La solution technique apportée par la présente invention permet d'envoyer une notification à la MME quant à la localisation de l'équipement utilisateur (UE) concerné par la réinitialisation après la réinitialisation du HLR, et la MME peut donc relancer à temps la mise à jour de la localisation et enregistrer l'UE auprès du HLR. Par conséquent, le HLR obtient le numéro du VLR correspondant, et il peut réaliser un routage correct des appels lorsque l'abonné est l'appelé.
PCT/CN2012/072697 2011-05-09 2012-03-21 Procédé et système de traitement de réinitialisation d'un enregistreur de localisation nominal Ceased WO2012152129A1 (fr)

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CN201110118600.4A CN102186158B (zh) 2011-05-09 2011-05-09 归属位置寄存器复位的处理方法及系统
CN201110118600.4 2011-05-09

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102186158B (zh) * 2011-05-09 2016-09-28 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
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 (fr) * 2013-07-22 2015-01-29 华为技术有限公司 Procédé et dispositif de traitement de mise à jour de localisation
CN104735639A (zh) * 2013-12-24 2015-06-24 阿尔卡特朗讯 一种处理移动用户的位置相关信息的方法与设备

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CN1356002A (zh) * 1999-04-12 2002-06-26 艾利森电话股份有限公司 归属位置寄存器故障恢复
CN1784070A (zh) * 2004-11-30 2006-06-07 Ut斯达康通讯有限公司 用于实现终端和用户移动性的方法
CN101222356A (zh) * 2007-12-27 2008-07-16 华为技术有限公司 用户数据更新的方法及其系统
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

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SE470326B (sv) * 1992-06-03 1994-01-17 Ellemtel Utvecklings Ab Förfarande i samband med uppdatering av en eller flera HLR- databaser som ingår i ett mobiltelefonisystem

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Publication number Priority date Publication date Assignee Title
CN1356002A (zh) * 1999-04-12 2002-06-26 艾利森电话股份有限公司 归属位置寄存器故障恢复
CN1784070A (zh) * 2004-11-30 2006-06-07 Ut斯达康通讯有限公司 用于实现终端和用户移动性的方法
CN101222356A (zh) * 2007-12-27 2008-07-16 华为技术有限公司 用户数据更新的方法及其系统
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

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