WO2014048142A1 - 拜访位置寄存器故障处理方法和移动管理网元 - Google Patents

拜访位置寄存器故障处理方法和移动管理网元 Download PDF

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Publication number
WO2014048142A1
WO2014048142A1 PCT/CN2013/077533 CN2013077533W WO2014048142A1 WO 2014048142 A1 WO2014048142 A1 WO 2014048142A1 CN 2013077533 W CN2013077533 W CN 2013077533W WO 2014048142 A1 WO2014048142 A1 WO 2014048142A1
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Prior art keywords
vlr
network element
service
management network
mobility management
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PCT/CN2013/077533
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English (en)
French (fr)
Inventor
舒林
时书锋
吴晓波
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华为技术有限公司
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Publication of WO2014048142A1 publication Critical patent/WO2014048142A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/04Arrangements for maintaining operational condition
    • 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

Definitions

  • the present invention relates to mobile communication technologies, and in particular, to a visitor location register (VLR) fault processing method and a mobility management network element.
  • VLR visitor location register
  • the 3rd Generation Partnership Project (3GPP) is based on the existing second-generation mobile communication network (The 2nd Generation, 2G) and the third-generation mobile communication network (The 3rd Generation, 3G).
  • the Evolved Packet System (EPS) was introduced.
  • the EPS network includes an Evolved Universal Mobile Telecommunication System Territorial Radio Access Network (E-UTRAN) and an Evolved Packet Core Network (EPC). Since the EPS network only handles Packet Switched (PS) services, operators currently use the original Circuit Switched (CS) domain to provide CS services.
  • the SGs interface between the Visitors Location Register (VLR) and the Mobility Management Entity (MME) is defined in the EPS network.
  • the VLR is usually set up with the Mobile Services Switching Centre (MSC) as the same network element, called MSC/VLR, or VLR for short.
  • MSC Mobile Services Switching Centre
  • 3GPP proposes CS Fallback (CSFB) technology and SGs short message transmission technology (SMS over SGs).
  • CSFB CS Fallback
  • SMS short message transmission technology
  • the CSFB technology enables the User Equipment (UE) under the E-UTRAN coverage to return to the CS domain of the 2G/3G network through E-UTRAN when the CS voice service needs to be processed; the SMS over SGs technology allows the resident in the E-
  • the UE under UTRAN reuses the existing CS domain device to implement CS short message transmission.
  • a UE camping on E-UTRAN and supporting CSFB and/or SMS over SGs needs to initiate a joint registration procedure to implement simultaneous registration to the EPC network PS domain and the CS network CS domain.
  • the MME needs to select an MSC/VLR that can serve the UE and send a location update request to the selected MSC/VLR to establish an SGs association.
  • the SGs association uses the services provided by the underlying Stream Control Transmission Protocol (SCTP) to implement SGs. Interface signaling and reliable delivery of services.
  • SCTP Stream Control Transmission Protocol
  • GPRS General Packet Radio Service
  • SGSN General Packet Radio Service Support Node
  • MSC/VLR Mobile Communications Service Support Node
  • a UE that camps on a 2G/3G network and supports the PS service and the CS service also needs to initiate a joint registration process to implement simultaneous registration of the PS domain and the CS domain to the 2G/3G network.
  • the SGSN needs to select one that can be associated with the UE.
  • the Gs association uses the services provided by the underlying SS7 link to achieve reliable delivery of Gs interface signaling and services.
  • MSC/VLR After the MSC/VLR fails, in some scenarios, such as: equipment damage caused by natural disasters, equipment burned due to short circuit, equipment caused by natural aging, etc., MSC/VLR cannot reset and restart, or can not automatically reset and restart. , and need to wait for the manual repair to reset and restart, that is to say, it cannot be restarted or cannot be restarted for a long time.
  • the MSC/VLR suddenly fails and cannot be restarted, or cannot be restarted for a long time, it will cause the SCTP association with the MME or the association of the SS7 underlying link with the SGSN to be broken.
  • all MMEs that have an SGs interface with the MSC/VLR or an SGSN that has a Gs interface can sense that the MSC/VLR is no longer able to provide services.
  • the MME/SGSN does not actively notify the UE registered on the MSC/VLR, so that the UE does not know that the registered MSC/VLR is unable to provide the service; at the same time, the HLR registered by the MSC/VLR is not immediately available. It is perceived that the MSC/VLR cannot provide services until a downlink CS voice call or short message service is received.
  • the embodiment of the present invention provides a method for processing a location register failure and a mobile management network element, so as to solve the problem that the UE cannot perform the CS domain downlink voice service and/or the short message after the VLR is faulty in the prior art. Business problem.
  • a method for processing a visit location register VLR failure including: The mobility management network element detects that the VLR cannot provide the service;
  • the mobility management network element requests the user equipment UE registered to the VLR to perform a joint location update procedure
  • the mobility management network element receives a joint location update request message from the UE, and selects a VLR that can provide a service for the UE, so that the UE registers with the VLR that can provide the service.
  • the method further includes:
  • the mobility management network element records a flag bit for the VLR, and the flag bit is used to identify that the VLR cannot provide a service.
  • the selecting, by the UE, the VLR that can provide the service includes:
  • a VLR that can provide a service is selected for the UE registered to the VLR identified by the flag.
  • the UE that requests to register with the VLR to perform a joint location update process includes:
  • the separation type of the separation request message is an international mobile subscriber identity code IMSI separation.
  • the method before the sending the detach request message to the UE, the method further includes:
  • the location update request message includes:
  • the location update request message is a tracking domain update request message
  • the location update request message is a routing domain update request message.
  • the selected service-providable VLR is in the same VLR resource pool as the VLR that cannot provide the service.
  • a seventh possible implementation Also includes:
  • the mobility management network element After detecting the VLR recovery service, the mobility management network element deletes the flag bit, so that the VLR re-services the UE.
  • the detecting that the VLR cannot provide the service includes:
  • the mobility management network element is the MME, detecting that there is no flow control transmission protocol with the VLR, the SCTP association is in a service state; or
  • the mobility management network element is an SGSN, it is detected that no link connection with the VLR is in a service state.
  • the registering the UE to the VLR that provides the service includes:
  • the VLR initiates an update location procedure to the Home Location Register HLR or the Home Subscriber Server HSS to enable the UE to register with the VLR that can provide the service.
  • a mobility management network element including:
  • a detecting module configured to detect that the visit location register VLR cannot provide a service
  • a requesting module configured to request a user equipment UE registered to the VLR to perform a joint location update process
  • a selection module configured to receive a joint location update request message from the UE, where
  • the UE selects a VLR that can provide a service, such that the UE registers with the VLR that can provide the service.
  • the method further includes:
  • a recording module configured to record a flag bit for the VLR, the flag bit is used to identify that the VLR cannot provide a service.
  • the selecting module is specifically configured to: select, for a UE that is registered to the VLR of the flag bit, a VLR that can provide a service, The UE is caused to register with the VLR that can provide the service.
  • the requesting module is specifically configured to: send a separation request message to the UE, where the separation type of the separation request message is an international mobile subscriber identity IMSI separation.
  • the method further includes: a transceiver unit, the transceiver unit is configured to:
  • the method further includes:
  • a deleting module configured to delete the flag bit after detecting the VLR recovery service, so that the VLR re-services the UE.
  • the detecting module is specifically configured to: not receive the probe response of the VLR; or
  • the mobility management network element is the MME, detecting that there is no flow control transmission protocol with the VLR, the SCTP association is in a service state; or
  • the mobility management network element is an SGSN, it is detected that no link connection with the VLR is in a service state.
  • the selecting module is specifically configured to: receive a joint location update request message from the UE, select a VLR that can provide a service for the UE, and The serviceable VLR initiates a location update procedure and initiates an update location procedure to the home location register HLR or the home subscriber server HSS via the serviceable VLR to enable the UE to register with the serviceable VLR.
  • the MME can detect whether the VLR can provide a service, and detects
  • the VLR may be selected for the UE that is originally registered to the VLR that cannot provide the service, and the VLR that can provide the service may continue to provide services for the UE that is originally registered to the VLR that cannot provide the service, and ensure that the service is guaranteed.
  • the normal operation of the downlink voice service and/or short message service in the CS domain reduces user complaints and improves the user experience and service capabilities of operators.
  • FIG. 1 is a schematic flowchart of a VLR fault processing method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another VLR fault processing method according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of still another method for processing a VLR fault according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of another method for processing a fault of a VLR according to an embodiment of the present invention
  • 6 is a schematic structural diagram of a mobility management network element according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of another mobility management network element according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the user equipment may be any one of the following, and the UE may be static or mobile.
  • the stationary UE may be included as a terminal, a mobile station, a Subscriber Unit, or a station.
  • Mobile UEs may include Cellular Phones, Personal Digital Assistants (PDAs), wireless modems, wireless communication devices, handhelds, laptop computers, cordless phones. ( Cordless Phone) or Wireless Local Loop (WLL) station.
  • PDAs Personal Digital Assistants
  • WLL Wireless Local Loop
  • the above UEs may be distributed throughout the wireless network.
  • the mobility management network element may be a mobility management entity.
  • MME Mobility Management Entity
  • GPRS General Packet Radio Service Supporting Node
  • FIG. 1 is a schematic flowchart of a VLR fault processing method according to an embodiment of the present invention, including: Step 11: A mobility management network element detects that a VLR cannot provide a service;
  • Step 12 The mobility management network element requests the user equipment UE registered to the VLR to perform a joint location update procedure.
  • the purpose of the re-attachment of the CS service of the UE is to perform the re-attachment of the CS service of the UE by using the UE to register the user equipment of the VLR to perform the joint location update procedure.
  • the joint location update process is implemented.
  • the CS service of the UE is called a non-EPS service in the EPS network; in the 2G/3G network, it is called a non-GPRS service.
  • Step 13 The mobility management network element receives a joint location update request message from the UE, and selects a VLR that can provide a service for the UE, so that the UE registers with the VLR that can provide the service.
  • the joint location update request message from the UE may be sent by the UE to the mobility management network element after the mobile management network element requests the UE to perform the joint location update process, or may be sent by the UE to the mobility management network element.
  • the mobile management network element requesting the UE to perform the joint location update process may include: the mobility management network element sends a separation request message to the UE, where the separation request message is an International Mobile Subscriber Identity (IMSI) ) Separation.
  • IMSI International Mobile Subscriber Identity
  • the VLR cannot provide the service because the VLR has failed, including: a failure that does not restart or a failure that does not restart for a long time, for example, a device that is destroyed by a natural disaster, a device that is short-circuited by a circuit, and the device is naturally destroyed. Failure caused by aging, etc.
  • the mobility management network element of this embodiment can actively detect whether the VLR can provide a service, and after detecting that the VLR cannot provide the service, select a service that can be provided for the UE that is originally registered to the VLR that cannot provide the service. The VLR can then be served by the VLR that can provide the service.
  • the method for the mobile management network element to actively detect whether the VLR can provide services includes, for example, a heartbeat mechanism, that is, periodically detecting whether the associated VLR can provide services. Or,
  • the underlying link detection mechanism that is, by detecting whether there is a link association with the VLR, is in a service state. If it is detected that there is no link association with the VLR in the service state, it can be judged that the VLR is not Can provide services. Further, the underlying link detection mechanism may include:
  • the SGs association is established between the MME and the VLR, and the SGs association uses the services provided by the underlying SCTP to implement reliable transmission of the SGs interface signaling and services.
  • SCTP is a reliable transport protocol that provides stable, reliable, and orderly data delivery between two endpoints through multi-homing and multi-streaming capabilities.
  • the Gs association is established between the SGSN and the VLR, and the Gs association is to implement the reliable transmission of the Gs interface signaling and services by using the services provided by the underlying link connection.
  • the link connection may be specifically a SS7 link connection.
  • the mobility management network element performs a different selection algorithm in different scenarios to select a VLR that can provide a service for the UE, including: In a scenario where the VLR resource pool is not deployed, the MME selects that the UE is not available according to the current location information of the UE. Serving a service-providing VLR in the vicinity of the service VLR; In the scenario where the VLR resource pool is deployed, the MME selects a service-providable VLR from a pool of VLR resources that cannot provide a service VLR.
  • the VLR that can be served and the VLR that cannot provide the service are in the same VLR resource pool; in the scenario where the VLR resource pool is not deployed, the scenario is selected.
  • the VLR that can provide the service is the VLR of the VLR that cannot provide the service.
  • the mobility management network element may detect whether the VLR can provide a service, and after detecting that the VLR cannot provide the service, may select a VLR that can be provided for the UE that is originally registered to the VLR that cannot provide the service, and thus may be
  • the service-providing VLR continues to provide services for UEs that are originally registered to the VLR that cannot provide services, ensuring normal operation of the downlink voice service and/or short message service in the CS domain, reducing user complaints, and improving user experience and operator service capabilities.
  • FIG. 2 is a schematic flowchart of another VLR fault processing method according to an embodiment of the present invention.
  • the mobility management network element after detecting that the VLR cannot provide a service, the mobility management network element directly selects a VLR that can provide a service, and specifically includes:
  • Step 201 The UE initiates a joint registration process and successfully registers with the mobility management network element and the VLR1.
  • the specific implementation of this step can utilize the joint registration process in the prior art.
  • Step 202 VLR1 cannot provide the service.
  • VLR1 After the failure of VLR1, it can be indicated that VLR1 cannot provide services, such as: equipment damage caused by natural disasters, equipment burned due to short circuit, and equipment caused by natural aging.
  • Step 203 The mobility management network element detects that the VLR1 cannot provide the service, and records a flag bit, which is used to identify that the VLR1 cannot provide the service.
  • the method may include: the MME does not receive the detection response of the VLR1, or the MME detects that no VTP1 is in the service state with the VLR1, and detects that the VLR1 cannot provide the service;
  • the SGSN may not receive the probe response of the VLR1, or the SGSN detects that no link connection with the VLR1 is in the service state, and detects that the VLR1 cannot provide the service.
  • Step 204 The mobility management network element selects a VLR that can provide a service for the UE, and the VLR that provides the service is VLR2.
  • the mobility management network element is only registered to the VLR that is not available for service.
  • the UE selects the VLR that can provide the service without involving other UEs.
  • Step 205 The mobility management network element initiates a location update procedure to the VLR that can provide the service, that is, the mobility management network element sends a location update request message to the VLR2.
  • the location update request message is an SGs location update request message
  • the location update request message is a Gs location update request message.
  • Step 206 The VLR that can provide the service initiates an update location procedure to the HLR or HSS (HLR/HSS), that is, the VLR2 sends an update location request message to the HLR or HSS (HLR/HSS).
  • HLR/HSS HLR/HSS
  • the VLR2 Since the UE is not registered in the VLR2, the VLR2 needs to send an update location request message to the HLR/HSS to implement registration in the HLR/HSS, and acquire CS domain subscription data of the UE from the HLR/HSS, thereby implementing registration of the UE on the VLR2.
  • Step 207 The UE jointly registers with the mobility management network element and the VLR 2.
  • the mobile management network element detecting the VLR1 recovery service may include:
  • the MME receives the probe response of the VLR1; or, the MME detects that at least one SCTP association with the VLR1 is in the service state.
  • the SGSN When the mobility management network element is the SGSN, the SGSN receives the probe response of the VLR1; or, the SGSN detects that at least one link connection with the VLR1 is in the service state.
  • the mobility management network element may send the batch to the VLR selected for each UE. Location update request message.
  • the mobility management network element may set a flag bit for the VLR, and the subsequent mobility management network element is the VLR registered to the identifier of the flag according to the flag bit.
  • the UE on the UE selects the VLR that can provide the service.
  • the VLR that can provide the service is directly selected for the UE registered to the non-serviceable VLR without setting the flag bit.
  • the mobility management network element after detecting that the VLR cannot provide the service, directly selects a VLR that can provide the service for the UE that is registered to the VLR that cannot provide the service, and implements the UE to register in the CS domain of the VLR that can provide the service. After the VLR is successfully implemented, the UE re-registers with the CS domain to ensure the successful transmission of subsequent CS voice calls or uplink and downlink short message services, improving the user experience and avoiding the risk of operators being complained and lost.
  • FIG. 3 is a schematic flowchart of another VLR fault processing method according to an embodiment of the present disclosure.
  • the mobility management network element receives the joint attach request message sent by the UE or When the location update request message is sent, the VLR is selected, and the method includes the following steps: Step 301: The UE initiates a joint registration process and successfully registers with the mobility management network element and the VLR1. Step 302: VLR1 cannot provide the service.
  • Step 303 The mobility management network element detects that the VLR1 cannot provide the service, and records a flag bit, which is used to identify that the VLR1 cannot provide the service.
  • steps 301 to 303 For details of the steps 301 to 303, refer to steps 201 to 203 in the embodiment shown in FIG. 2, and details are not described herein again.
  • Step 304 The UE sends a joint attach request message or a joint location update request message to the mobility management network element.
  • the joint location update request message is a joint tracking domain. New request message
  • the joint location update request message is a joint routing domain update request message.
  • Step 305 The mobility management network element selects a VLR that can provide a service for the UE, and the VLR that provides the service is VLR2.
  • Step 306 The mobility management network element initiates a location update procedure to the VLR that can provide the service, that is, the mobility management network element sends a location update request message to the VLR2.
  • Step 307 The VLR that can provide the service initiates an update location procedure to the HLR or HSS (HLR/HSS), that is, the VLR2 sends an update location request message to the HLR/HSS.
  • HLR/HSS HSS/HSS
  • Step 308 The UE jointly registers with the mobility management network element and the VLR 2.
  • steps 305 to 308 For details of the steps 305 to 308, refer to steps 204 to 207 in the embodiment shown in FIG. 2, and details are not described herein again.
  • the flag bit recorded in the foregoing step 303 may be deleted, and then the VLR1 may continue to serve the UE.
  • the mobile management network element detects that the VLR1 recovery service can include:
  • the MME receives the probe response of the VLR1; or, the MME detects that at least one SCTP association with the VLR1 is in the service state.
  • the SGSN When the mobility management network element is the SGSN, the SGSN receives the probe response of the VLR1; or, the SGSN detects that at least one link connection with the VLR1 is in the service state.
  • the setting flag bit is taken as an example, and the mobility management network element can be located in the flag bit, and the VLR registered for the UE registered on the VLR identified by the flag bit is selected, and optionally, the flag bit is not set. Directly select the VLR that can provide the service for the UE registered on the VLR that cannot provide the service.
  • the embodiment After detecting that the VLR cannot provide the service, and receiving the joint attach request message or the joint location update request message sent by the UE, the embodiment selects a VLR that can provide the server for the UE registered to the VLR that cannot provide the service, and implements the UE.
  • the CS domain registration of the VLR that can provide the service can quickly realize the registration of the UE to the CS domain after the VLR failure, and ensure the successful transmission of the subsequent downlink CS voice call or the uplink and downlink short message service, improve the user experience, and prevent the operator from being complained. The risk of losing with customers.
  • VLR 4 is a schematic flowchart of another VLR fault processing method according to an embodiment of the present invention.
  • the mobility management network element after detecting that the VLR cannot provide the service, the mobility management network element actively requests the UE to perform the joint location update process, and after receiving the joint location update request message sent by the UE, selecting the VLR, specifically includes:
  • Step 401 The UE initiates a joint registration process and successfully registers with the mobility management network element and the VLR1.
  • Step 403 The mobility management network element detects that the VLR1 cannot provide the service, and records a flag bit, which is used to identify that the VLR1 cannot provide the service.
  • steps 401 to 403 For details of the steps 401 to 403, refer to steps 201 to 203 in the embodiment shown in FIG. 2, and details are not described herein again.
  • step 404a and step 404b and step 405 and subsequent steps are performed.
  • step 405 and subsequent steps are directly performed.
  • Step 404a The mobility management network element sends a paging message to the UE.
  • Step 404b The UE sends a service request message to the mobility management network element as a paging response.
  • Step 405 The mobility management network element requests the UE registered to the VLR1 to perform a joint location update procedure, that is, the mobility management network element sends a disconnection request message to the UE.
  • the separation type carried in the separation request message is "IMSI separation" to instruct the UE to initiate a joint location update procedure.
  • the purpose of the mobile management network element requesting the UE to be registered to the VLR1 to perform the joint location update process is to implement re-attachment of the CS service of the UE.
  • the re-attachment of the CS service of the UE is performed by performing a joint location update process. Realized.
  • the CS service of the UE is called a non-EPS service in the EPS network; in the 2G/3G network, it is called a non-GPRS service.
  • Step 406 The UE sends a joint location update request message to the mobility management network element.
  • the update type carried in the joint location update request message is "Joint Location Update and IMSI Attach" to ensure that the UE registers with the CS domain.
  • the joint location update request message is a joint tracking domain update request message, and the update type carried in the message is "joint tracking domain/location domain update and IMSI attachment";
  • the joint location update request message is a joint routing domain update request message
  • the update type carried in the message is "joint routing domain/location domain update and IMSI attachment”.
  • Step 408 The mobility management network element initiates a location update procedure to the VLR that can provide the service, that is, the mobility management network element sends a location update request message to the VLR2.
  • Step 409 The VLR that can provide the service initiates an update location procedure to the HLR or HSS (HLR/HSS), that is, the VLR2 sends an update location request message to the HLR/HSS.
  • HLR/HSS HSS/HSS
  • Step 410 The UE jointly registers with the mobility management network element and the VLR 2.
  • steps 407-410 For details of the steps 407-410, refer to steps 204-207 in the embodiment shown in FIG. 2, and details are not described herein again.
  • the step may be deleted.
  • the flag set by 403 can be continued by the VLR1 to serve the UE.
  • the mobile management network element detects that the VLR1 recovery service can include:
  • the MME receives the probe response of the VLR1; or, the MME detects that at least one SCTP association with the VLR1 is in the service state.
  • the SGSN When the mobility management network element is the SGSN, the SGSN receives the probe response of the VLR1; or, the SGSN detects that at least one link connection with the VLR1 is in the service state.
  • the mobility management network element may send a paging message to each UE in batches in order to avoid signaling congestion problems that may be caused by the UE initiating the joint location update procedure. Separate the request message.
  • the setting flag bit is taken as an example, and the mobility management network element can be located in the flag bit, and the VLR registered for the UE registered on the VLR identified by the flag bit is selected, and optionally, the flag bit is not set. Directly select the VLR that can provide the service for the UE registered on the VLR that cannot provide the service.
  • the mobility management network element actively requests the UE registered to the VLR that cannot provide the service to initiate the joint location update process, and in the process, selects the VLR that can provide the service for the UE and implements the UE.
  • the registration of the UE to the CS domain after the VLR failure can be quickly implemented, and the subsequent downlink CS voice call or the uplink and downlink short message service can be successfully transmitted, thereby improving the user experience and avoiding the operator being Complaints and the risk of customer churn.
  • FIG. 5 is a schematic flowchart of another VLR fault processing method according to an embodiment of the present invention.
  • the mobility management network element after detecting that the VLR cannot provide the service and receiving the periodic location update request message, the service request message, or the logical link control (LLC) frame sent by the UE, the mobility management network element actively takes the initiative.
  • the UE is requested to perform the joint location update process, and after receiving the joint location update request message sent by the UE, selecting the VLR, specifically includes:
  • Step 501 The UE initiates a joint registration process and successfully registers with the mobility management network element and the VLR1.
  • Step 503 The mobility management network element detects that the VLR1 cannot provide the service, and records a flag bit, which is used to identify that the VLR1 cannot provide the service.
  • steps 501 to 503 For details of the steps 501 to 503, refer to steps 201 to 203 in the embodiment shown in FIG. 2, and details are not described herein again.
  • Step 504 The UE sends a periodic location update request message, or a service request message, or a LLC frame to the mobility management network element.
  • the periodic location update request message is a periodic tracking domain update request message
  • the periodic location update request message is a periodic routing domain update request message.
  • the LLC frame sent by the UE refers to a data packet/data block transmitted in the LLC sublayer, which is also called a logical link control protocol data unit (PDU).
  • PDU logical link control protocol data unit
  • Step 505 The mobility management network element requests the UE registered to the VLR1 to perform a joint location update procedure, that is, the mobility management network element sends a disconnection request message to the UE.
  • Step 506 The UE sends a joint location update request message to the mobility management network element.
  • Step 507 The mobility management network element selects a VLR that can provide a service for the UE, and the VLR that provides the service is VLR2.
  • Step 508 The mobility management network element initiates a location update procedure to the VLR that can provide the service, that is, the mobility management network element sends a location update request message to the VLR2.
  • Step 509 The VLR that can provide the service initiates an update location procedure to the HLR or HSS (HLR/HSS), that is, the VLR2 sends an update location request message to the HLR.
  • HLR/HSS HSS/HSS
  • Step 510 The UE jointly registers with the mobility management network element and the VLR 2.
  • steps 505 to 510 For details of the steps 505 to 510, refer to steps 405 to 410 in the embodiment shown in FIG. 4, and details are not described herein again. Further, after the mobility management network element detects the VLR1 recovery service, the flag set in step 503 may be deleted, and then the VLR1 may continue to serve the UE.
  • the mobile management network element detects that the VLR1 recovery service can include:
  • the MME receives the probe response of the VLR1; or, the MME detects that at least one SCTP association with the VLR1 is in the service state.
  • the SGSN When the mobility management network element is the SGSN, the SGSN receives the probe response of the VLR1; or, the SGSN detects that at least one link connection with the VLR1 is in the service state.
  • the UE may continue to perform the periodic location update process or the service request process.
  • the setting flag bit is taken as an example, and the mobility management network element can be located in the flag bit, and the VLR registered for the UE registered on the VLR identified by the flag bit is selected, and optionally, the flag bit is not set. Directly select the VLR that can provide the service for the UE registered on the VLR that cannot provide the service.
  • the mobility management network element when detecting that the VLR cannot provide the service and the UE initiates the periodic location update request or the service request, the mobility management network element actively requests the UE that is registered to the VLR that cannot provide the service to initiate the joint location update process, and in the process, The UE selects the VLR that can provide the service and implements the UE to register in the CS domain of the VLR that can provide the service, and can quickly register the UE to the CS domain after the VLR fault, and ensure the subsequent downlink CS voice call or uplink and downlink short message service. Successful transmission, improve user experience, avoid the risk of operators being complained and lost.
  • FIG. 6 is a schematic structural diagram of a mobility management network element according to an embodiment of the present invention, including a detection module 61, a requesting module 62, and a selection module 63.
  • the detecting module 61 is configured to detect that the VLR cannot provide a service; and the requesting module 62 is configured to request The user equipment UE registered to the VLR performs a joint location update procedure;
  • the selection module 63 is configured to receive a joint location update request message from the UE, select a VLR that can provide a service for the UE, and enable the UE to register to The VLR that can provide the service.
  • the network element may further include:
  • a recording module configured to record a flag bit for the VLR, the flag bit is used to identify that the VLR cannot provide a service.
  • the selecting module is specifically configured to: select, by the UE that is registered to the VLR of the flag bit, a VLR that can provide a service, so that the UE is registered to the VLR that can provide the service.
  • the request module is specifically configured to:
  • a separation request message is sent to the UE, and the separation type of the separation request message is IMSI separation.
  • the network element may further include:
  • transceiver unit configured to:
  • the network element may further include:
  • a deleting module configured to delete the flag bit after detecting the VLR recovery service, so that the VLR re-services the UE.
  • the detecting module is specifically configured to:
  • the mobility management network element is the MME, detecting that no SCTP association is in the service state with the VLR; or
  • the mobility management network element is an SGSN, it is detected that no link connection with the VLR is in a service state.
  • the selecting module is specifically configured to:
  • An update location process is initiated to enable the UE to register with the VLR that can provide the service.
  • the mobility management network element may be an MME, where the location update request message is a tracking domain update request message, and the foregoing joint location update request message is a joint tracking domain update request message; or, the mobility management network The element may also be an SGSN.
  • the location update request message is a routing domain update request message
  • the joint location update request message is a joint routing domain update request message.
  • the VLR that can provide the service is the same as the VLR that cannot provide the service.
  • VLR resource pool is the same as the VLR that cannot provide the service.
  • the mobility management network element can detect whether the VLR can provide a service, and after detecting that the VLR cannot provide the service, select a VLR that can provide the service for the UE registered to the VLR that cannot provide the service, and thus can be served by the VLR.
  • the VLR continues to provide services for UEs that are originally registered to the VLR that cannot provide services, ensuring normal operation of the downlink voice service and/or short message service in the CS domain, reducing user complaints, and improving user experience and service capabilities of operators.
  • FIG. 7 is a schematic structural diagram of another mobility management network element according to an embodiment of the present invention, including a processor 71 and a transceiver 72.
  • the processor 71 is configured to detect that the VLR cannot provide a service; and the transceiver 72 is configured to request registration.
  • the user equipment UE of the VLR performs a joint location update procedure, and receives a joint location update request message from the UE.
  • the processor 71 is further configured to select a VLR that can provide a service for the UE, so that the UE registers with the A VLR that can provide services.
  • the processor 71 is further configured to: record a flag bit for the VLR, where the flag bit is used to identify that the VLR cannot provide a service.
  • the processor 71 is specifically configured to select a VLR that can provide a service for the UE that is registered to the VLR identified by the flag bit.
  • the transceiver 72 is specifically configured to send a detach request message to the UE, where the detach type of the detach request message is an IMSI detach, to implement a request for registration to the UE that cannot provide the service to send a joint location update request. Message.
  • the transceiver 72 is further configured to receive a periodic location update request message sent by the UE, or a service request message, or a logical link control LLC frame; or
  • the processor 71 is further configured to: after detecting the VLR recovery service, deleting the flag bit, so that the VLR re-services the UE.
  • the processor 71 is specifically configured to: not receive the probe response of the VLR; or, when the mobility management network element is the MME, detecting that no SCTP association with the VLR is in a service state; or When the mobility management network element is an SGSN, it is detected that no link connection with the VLR is in a service state.
  • the transceiver 72 is further configured to: initiate a location update flow to the VLR that can provide the service.
  • the UE is now registered to the VLR that can provide the service.
  • the mobility management network element may be an MME, where the location update request message is a tracking domain update request message, and the foregoing joint location update request message is a joint tracking domain update request message; or, the mobility management network The element may also be an SGSN.
  • the location update request message is a routing domain update request message
  • the joint location update request message is a joint routing domain update request message.
  • the selected serviceable VLR is in the same VLR resource pool as the VLR that cannot provide the service.
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 71 or implemented by the processor 71 in conjunction with the transceiver 72.
  • the processor can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution, or performed by a combination of hardware and software modules in the processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory,
  • the transceiver described above can transmit and receive wireless signals through one or more antennas.
  • the transceiver can be composed of separate transmitters and receivers, or it can be coupled together with receiving and transmitting functions.
  • the mobility management network element can detect whether the VLR can provide a service, and after detecting that the VLR cannot provide the service, select a VLR that can provide the service for the UE registered to the VLR that cannot provide the service, and thus can be served by the VLR.
  • the VLR continues to provide services for UEs that are originally registered to the VLR that cannot provide services, ensuring normal operation of the downlink voice service and/or short message service in the CS domain, reducing user complaints, and improving user experience and service capabilities of operators.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software function unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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Abstract

本发明提供一种拜访位置寄存器故障处理方法和移动管理网元。该方法包括移动管理网元检测到VLR不能提供服务;所述移动管理网元请求注册到所述VLR的用户设备UE执行联合位置更新流程;所述移动管理网元接收到来自所述UE的联合位置更新请求消息,为所述UE选择可提供服务的VLR,使得所述UE注册到所述可提供服务的VLR。本发明实施例可以提高用户体验及运营商服务能力。

Description

拜访位置寄存器故障处理方法和移动管理网元 技术领域 本发明涉及移动通信技术, 尤其涉及一种拜访位置寄存器 (Visitors Location Register, VLR )故障处理方法和移动管理网元。 背景技术
第三代合作伙伴项目 ( 3rd Generation Partnership Project, 3 GPP )组织在 现有的第二代移动通信网络( The 2nd Generation, 2G )和第三代移动通信网 络( The 3rd Generation, 3G ) 的基础上推出了演进分组系统( Evolved Packet System, EPS )。 EPS网络包括演进通用移动通信系统陆地无线接入网( Evolved Universal Mobile Telecommunication System Territorial Radio Access Network, E-UTRAN )和演进分组核心网 (Evolved Packet Core Network, EPC ) 。 由于 EPS 网络仅处理分组交换(Packet Switched, PS )业务, 因此目前来说运营 商釆用原有电路交换(Circuit Switched, CS )域来提供 CS业务。 在 EPS网 络中定义了拜访位置寄存器( Visitors Location Register, VLR )与移动性管理 实体( Mobility Management Entity, MME )之间的 SGs接口。 其中, VLR通 常是与移动业务交换中心 (Mobile Services Switching Centre, MSC )合设为 同一网元, 称为 MSC/VLR, 或简称为 VLR。 基于 SGs接口功能, 3GPP提 出了电路域回落( CS Fallback, CSFB )技术与 SGs短消息传输技术( SMS over SGs ) 。 CSFB技术使 E-UTRAN覆盖下的用户设备( User Equipment, UE ) 在需要处理 CS语音业务时通过 E-UTRAN回到 2G/3G网络 CS域完成业务处 理; SMS over SGs技术让驻留在 E-UTRAN下的 UE重用现有 CS域设备来实 现 CS短消息的传输。
驻留在 E-UTRAN且支持 CSFB和 /或 SMS over SGs的 UE需要发起联合 注册流程实现到 EPC网络 PS域与 CS网络 CS域的同时注册。在所述联合注 册流程中, MME需要选择一个可以为 UE提供服务的 MSC/VLR并向所选的 MSC/VLR发送位置更新请求以建立 SGs关联。 SGs关联利用底层的流控制 传输协议( Stream Control Transmission Protocol, SCTP )提供的服务实现 SGs 接口信令与业务的可靠传递。
在已经部署且商用的 2G/3G 网络中, 若运营商在通用分组无线业务 ( General Packet Radio Service, GPRS )支持节点( Serving GPRS Support Node, SGSN )与 MSC/VLR之间配置支持 Gs接口, 则驻留在 2G/3G网络且支持 PS 业务与 CS业务的 UE也需要发起联合注册流程实现到 2G/3G网络的 PS域与 CS域的同时注册。 在所述联合注册流程中, SGSN需要选择一个可以为 UE 联。 Gs关联利用底层的七号信令链路连接提供的服务实现 Gs接口信令与业 务的可靠传递。
MSC/VLR出现故障后, 在某些场景下, 比如: 因自然灾害导致的设备毁 坏, 电路短路造成的设备烧毁, 设备自然老化导致的故障等, MSC/VLR无 法复位重启, 或不能自动复位重启, 而需要等待人工修复后复位重启, 也就 是说不能重启或长时间内不能重启。 当 MSC/VLR突然出现故障而不能重启, 或长时间内不能重启时, 会导致其与 MME之间的 SCTP关联或者与 SGSN 之间的七号信令底层链路关联断掉。 这样一来, 与该 MSC/VLR有 SGs接口 连接的所有 MME或者有 Gs接口连接的 SGSN均能感知到该 MSC/VLR已经 不能提供服务。但是 MME/SGSN感知后并不会主动通知在该 MSC/VLR上注 册的 UE, 导致 UE并不知道所注册的 MSC/VLR已经不能提供服务; 同时该 MSC/VLR所注册的 HLR也不会马上感知该 MSC/VLR不能提供服务, 直到 收到下行 CS语音呼叫或短消息业务。 这样导致的问题是, 之前成功联合注 册的 UE, 在所注册的 MSC/VLR故障后, 仍然认为其是联合注册的, 但是却 收不到下行的 CS语音呼叫或短消息业务, 也不能成功发送上行的短消息。 这对于毫无感知的用户来说是不可接受的, 随之所产生的对运营商的投诉及 引发的客户流失, 对运营商来说也是不可接受的。 发明内容
有鉴于此, 本发明实施例提供了一种拜访位置寄存器故障处理方法和移 动管理网元, 以解决现有技术中存在的 VLR发生故障后 UE不能正常进行 CS域下行语音业务和 /或短消息业务的问题。
第一方面, 提供了一种拜访位置寄存器 VLR故障处理方法, 包括: 移动管理网元检测到 VLR不能提供服务;
所述移动管理网元请求注册到所述 VLR的用户设备 UE执行联合位置更 新流程;
所述移动管理网元接收到来自所述 UE 的联合位置更新请求消息, 为所 述 UE选择可提供服务的 VLR,使得所述 UE注册到所述可提供服务的 VLR。
结合第一方面, 在第一种可能的实现方式中, 还包括:
所述移动管理网元为所述 VLR记录标志位, 所述标志位用于标识所述 VLR不能提供服务。
结合第一方面或第一方面的第一种可能的实现方式, 在第二种可能的实 现方式中, 所述为所述 UE选择可提供服务的 VLR, 包括:
为注册到所述标志位标识的 VLR的 UE选择可提供服务的 VLR。
结合第一方面, 在第三种可能的实现方式中, 所述请求注册到所述 VLR 的 UE执行联合位置更新流程, 包括:
向所述 UE发送分离请求消息, 所述分离请求消息的分离类型为国际移 动用户识别码 IMSI分离。
结合第一方面的第三种可能的实现方式, 在第四种可能的实现方式中, 在向所述 UE发送分离请求消息之前, 所述方法还包括:
接收到所述 UE发送的周期性位置更新请求消息, 或者业务请求消息, 或者逻辑链路控制 LLC帧; 或者,
若所述 UE处于空闲态, 向所述 UE发送寻呼消息, 并接收到所述 UE发 送的与所述寻呼消息对应的业务请求消息。
结合第一方面的第四种可能的实现方式, 在第五种可能的实现方式中, 所述位置更新请求消息, 包括:
若所述移动管理网元为移动管理实体 MME,则所述位置更新请求消息为 跟踪域更新请求消息; 或者,
若所述移动管理网元为服务通用分组无线业务支持节点 SGSN, 则所述 位置更新请求消息为路由域更新请求消息。
结合第一方面, 在第六种可能的实现方式中, 所述选择的可提供服务的 VLR与所述不能提供服务的 VLR在相同的 VLR资源池。
结合第一方面的第一种可能的实现方式, 在第七种可能的实现方式中, 还包括:
所述移动管理网元在检测到所述 VLR恢复服务后, 删除所述标志位, 以 便所述 VLR重新为所述 UE服务。
结合第一方面, 在第八种可能的实现方式中, 所述检测到 VLR不能提供 服务, 包括:
没有收到所述 VLR的探测响应; 或者,
当所述移动管理网元为 MME时,检测到与所述 VLR之间没有流控制传 输协议 SCTP关联处于服务态; 或者,
当所述移动管理网元为 SGSN时,检测到与所述 VLR之间没有链路连接 处于服务态。
结合第一方面, 在第九种可能的实现方式中, 所述使得所述 UE注册到 所述可提供服务的 VLR, 包括:
向所述可提供服务的 VLR发起位置更新流程,并通过所述可提供服务的
VLR向归属位置寄存器 HLR或归属用户服务器 HSS发起更新位置流程, 以 实现所述 UE注册到所述可提供服务的 VLR。
第二方面, 提供了一种移动管理网元, 包括:
检测模块, 用于检测到拜访位置寄存器 VLR不能提供服务;
请求模块, 用于请求注册到所述 VLR的用户设备 UE执行联合位置更新 流程;
选择模块, 用于接收到来自所述 UE的联合位置更新请求消息, 为所述
UE选择可提供服务的 VLR, 使得所述 UE注册到所述可提供服务的 VLR。
结合第二方面, 在第一种可能的实现方式中, 还包括:
记录模块,用于为所述 VLR记录标志位,所述标志位用于标识所述 VLR 不能提供服务。
结合第二方面的第一种可能的实现方式, 在第二种可能的实现方式中, 所述选择模块具体用于: 为注册到所述标志位标识的 VLR的 UE选择可提供 服务的 VLR, 使得所述 UE注册到所述可提供服务的 VLR。
结合第二方面, 在第三种可能的实现方式中, 所述请求模块具体用于: 向所述 UE发送分离请求消息, 所述分离请求消息的分离类型为国际移 动用户识别码 IMSI分离。 结合第二方面的第三种可能的实现方式, 在第四种可能的实现方式中, 还包括: 收发单元, 所述收发单元用于:
接收到所述 UE发送的周期性位置更新请求消息, 或者业务请求消息, 或者逻辑链路控制 LLC帧;
或者,
若所述 UE处于空闲态, 向所述 UE发送寻呼消息, 并接收到所述 UE发 送的与所述寻呼消息对应的业务请求消息。
结合第二方面的第一种可能的实现方式, 在第五种可能的实现方式中, 还包括:
删除模块, 用于在检测到所述 VLR恢复服务后, 删除所述标志位, 以便 所述 VLR重新为所述 UE服务。
结合第二方面, 在第六种可能的实现方式中, 所述检测模块具体用于: 没有收到所述 VLR的探测响应; 或者,
当所述移动管理网元为 MME时,检测到与所述 VLR之间没有流控制传 输协议 SCTP关联处于服务态; 或者,
当所述移动管理网元为 SGSN时,检测到与所述 VLR之间没有链路连接 处于服务态。
结合第二方面, 在第七种可能的实现方式中, 所述选择模块具体用于: 接收到来自所述 UE的联合位置更新请求消息,为所述 UE选择可提供服 务的 VLR, 向所述可提供服务的 VLR发起位置更新流程, 并通过所述可提 供服务的 VLR向归属位置寄存器 HLR或归属用户服务器 HSS发起更新位置 流程, 以实现所述 UE注册到所述可提供服务的 VLR。
通过上述技术方案, MME可以检测 VLR是否能提供服务, 并在检测到
VLR不能提供服务后,可以为原本注册到不能提供服务的 VLR的 UE选择可 提供服务的 VLR, 进而可以由该可提供服务的 VLR继续为原本注册到不能 提供服务的 VLR的 UE提供服务, 保证 CS域下行语音业务和 /或短消息业务 的正常进行, 降低用户投诉, 提高用户体验及运营商服务能力。 附图说明 为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中 所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中的附图是本发 明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的 前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种 VLR故障处理方法的流程示意图; 图 2为本发明实施例提供的另一种 VLR故障处理方法的流程示意图; 图 3为本发明实施例提供的又一种 VLR故障处理方法的流程示意图; 图 4为本发明实施例提供的又一种 VLR故障处理方法的流程示意图; 图 5为本发明实施例提供的又一种 VLR故障处理方法的流程示意图; 图 6为本发明实施例提供的一种移动管理网元的结构示意图;
图 7为本发明实施例提供的另一种移动管理网元的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于 本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
在本发明实施例中, 用户设备 ( User Equipment, 简称 UE )可以为以下 任意一种, 并且 UE可以是静态的, 也可以是移动的。静止的 UE可以包括为 终端 (Terminal ), 移动台 ( Mobile Station )、 用户单元 ( Subscriber Unit )或 站台 (Station )等。 移动的 UE可以包括蜂窝电话( Cellular Phone )、 个人数 字助理(Personal Digital Assistant, PDA ), 无线调制解调器( modem ), 无线 通信设备、 手持设备(handheld ), 膝上型电脑( Laptop Computer )、 无绳电 话( Cordless Phone )或无线本地环路 ( Wireless Local Loop, WLL ) 台等。 上述 UE可以分布于整个无线网络中。
为了便于本领域技术人员的理解, 下面以具体的应用实例来说明。 需 要说明的是, 在本发明实施例中, 移动管理网元可以为移动管理实体
( Mobility Management Entity, MME)或月良务通用分组无线业务 ( General Packet Radio Service , GPRS )支持节点( Serving GPRS Support Node , SGSN ) 中的任一种, MSC与 VLR通常合设为同一网元, 称为 MSC/VLR, 或简 称为 VLR。
图 1为本发明实施例提供的一种 VLR故障处理方法的流程示意图,包括: 步骤 11 : 移动管理网元检测到 VLR不能提供服务;
步骤 12:所述移动管理网元请求注册到所述 VLR的用户设备 UE执行联 合位置更新流程;
其中, 移动管理网元请求注册到所述 VLR的用户设备 UE执行联合位置 更新流程的目的是实现该 UE的 CS业务的重新附着, 即本实施例中, UE的 CS业务的重新附着是通过执行联合位置更新流程实现的。需要说明的是, UE 的 CS业务,在 EPS网络中称为非 EPS业务;在 2G/3G网络中,称为非 GPRS 业务。
步骤 13: 所述移动管理网元接收到来自所述 UE的联合位置更新请求消 息, 为所述 UE选择可提供服务的 VLR, 使得所述 UE注册到所述可提供服 务的 VLR。
其中, 来自 UE的联合位置更新请求消息可以是移动管理网元请求该 UE 执行联合位置更新流程后,该 UE发送给移动管理网元的; 也可以是 UE主动 发送给移动管理网元的。
可选的, 移动管理网元请求 UE执行联合位置更新流程可以包括: 移动 管理网元向该 UE发送分离请求消息, 该分离请求消息的分离类型为国际移 动用户识别码 ( International Mobile Subscriber Identity, IMSI )分离。
本发明实施例中导致 VLR不能提供服务是因为 VLR发生了故障, 包括: 不重启的故障或者长时间不重启的故障, 例如, 因自然灾害导致的设备毁坏, 电路短路造成的设备烧毁, 设备自然老化导致的故障等。
与现有技术相比,本实施例的移动管理网元可以主动检测 VLR是否能提 供服务, 并在检测到 VLR 不能提供服务后, 为原本注册到不能提供服务的 VLR上的 UE选择可提供服务的 VLR, 之后可由该可提供服务的 VLR为该 UE提供服务。
移动管理网元主动检测 VLR是否能提供服务的方法包括, 例如, 通过心 跳机制, 也即周期性地探测所关联的 VLR是否能够提供服务。 或者,
底层链路检测机制,也即通过检测与 VLR之间是否有链路关联处于服务 态。 若检测到与 VLR之间没有链路关联处于服务态时, 可以判断该 VLR不 能提供服务。 进一步, 底层链路检测机制可以包括:
当移动管理网元是 MME时, MME与 VLR之间建立的是 SGs关联, SGs 关联是利用底层的 SCTP提供的服务实现 SGs接口信令与业务的可靠传递。 SCTP 是一种可靠的传输协议, 通过多宿主 ( Multi-homing ) 和多流 ( Multi-streaming )功能在两个端点之间提供稳定、 可靠、 有序的数据传递服 务。 当 MME检测到与 VLR之间没有 SCTP关联处于服务态时, 可以判断该 VLR不能提供服务。 或者,
当移动管理网元是 SGSN时, SGSN与 VLR之间建立的是 Gs关联, Gs 关联是利用底层的链路连接提供的服务实现 Gs接口信令与业务的可靠传递。 当 SGSN检测到与 VLR之间没有链路连接处于服务态时, 可以判断该 VLR 不能提供服务。 其中, 本发明所有实施例中, 链路连接可以具体为七号信令 链路连接。
移动管理网元在不同的场景下执行不同的选择算法为 UE选择可提供服 务的 VLR, 包括: 在未部署 VLR资源池( VLR pool )的场景下, MME根据 UE 当前所在的位置信息选择不可提供服务 VLR邻近的一个可提供服务的 VLR; 在部署了 VLR资源池的场景下, MME从不可提供服务 VLR的 VLR 资源池中选择一个可提供服务的 VLR。
需要说明的是, 本实施例中, 在部署了 VLR资源池的场景下, 选择的可 提供服务的 VLR与不能提供服务的 VLR在同一 VLR资源池;在未部署 VLR 资源池的场景下, 选择的可提供服务的 VLR是不能提供服务的 VLR的邻近 VLR。
本实施例中, 移动管理网元可以检测 VLR是否能提供服务, 并在检测到 VLR不能提供服务后,可以为原本注册到不能提供服务的 VLR的 UE选择可 提供服务的 VLR, 进而可以由该可提供服务的 VLR继续为原本注册到不能 提供服务的 VLR的 UE提供服务, 保证 CS域下行语音业务和 /或短消息业务 的正常进行, 降低用户投诉, 提高用户体验及运营商服务能力。
图 2为本发明实施例提供的另一种 VLR故障处理方法的流程示意图,本 实施例中移动管理网元在检测到 VLR不能提供服务后,直接选择可提供服务 的 VLR, 具体包括:
步骤 201: UE发起联合注册流程并成功注册到移动管理网元与 VLR1。 该步骤的具体实现可以釆用现有技术中的联合注册流程。
步骤 202: VLR1不能提供服务。
VLR1发生故障后可以表明 VLR1 不能提供服务, 例如: 因自然灾害导 致的设备毁坏, 电路短路造成的设备烧毁, 设备自然老化导致的故障等。
步骤 203: 移动管理网元检测到 VLR1 不能提供服务, 并记录标志位, 该标志位用于标识 VLR1不能提供服务。
当移动管理网元为 MME时, 可以包括: MME没有收到所述 VLR1的探 测响应,或者, MME检测到与所述 VLR1之间没有 SCTP关联处于服务态时, 检测到 VLR1不能提供服务;
当移动管理网元为 SGSN时, 可以包括: SGSN没有收到所述 VLR1的 探测响应, 或者, SGSN检测到与所述 VLR1之间没有链路连接处于服务态 时, 检测到 VLR1不能提供服务。
步骤 204: 移动管理网元为该 UE选择可提供服务的 VLR, 该可提供服 务的 VLR为 VLR2。
具体选择算法可以参见图 1所示实施例中的说明, 在此不再赘述。 需要 说明的是, 该步骤中, 移动管理网元只为原先注册到不可提供服务的 VLR的
UE选择可提供服务的 VLR, 而不涉及其它 UE。
步骤 205: 移动管理网元向可提供服务的 VLR发起位置更新流程, 即, 移动管理网元向 VLR2发送位置更新请求消息。
其中, 当移动管理网元为 MME时, 该位置更新请求消息为 SGs位置更 新请求消息;
当移动管理网元为 SGSN时,该位置更新请求消息为 Gs位置更新请求消 息。
步骤 206: 可提供服务的 VLR向 HLR或 HSS ( HLR/HSS )发起更新位 置流程, 即, VLR2向 HLR或 HSS ( HLR/HSS )发送更新位置请求消息。
由于该 UE原本未在 VLR2注册, VLR2需要向 HLR/HSS发送更新位置 请求消息实现在 HLR/HSS的注册, 同时从 HLR/HSS获取 UE的 CS域签约 数据, 从而实现 UE在 VLR2上的注册。
步骤 207: UE联合注册到移动管理网元与 VLR2。
进一步的, 当移动管理网元检测到 VLR1恢复月良务后, 则可以删除上述 步骤 203中所记录的标志位, 之后可以由 VLR1继续为 UE服务。 其中, 移动管理网元检测到 VLR1恢复服务可以包括:
当移动管理网元为 MME时, MME收到 VLR1的探测响应; 或者, MME 检测到与 VLR1之间至少有一个 SCTP关联处于服务态。
当移动管理网元为 SGSN时, SGSN收到 VLR1的探测响应;或者, SGSN 检测到与 VLR1之间至少有一个链路连接处于服务态。
另外, 当原本注册到 VLR1上的 UE的数量较多时, 为了避免同时发起 到 VLR2的位置更新请求可能导致的信令拥塞问题, 移动管理网元可以分批 次向为每个 UE选择的 VLR发送位置更新请求消息。
需要说明的是, 本实施例中, 移动管理网元可以在检测到 VLR不能提供 服务后, 为该 VLR设置标志位, 后续移动管理网元根据该标志位, 为注册到 该标志位标识的 VLR上的 UE选择可提供服务的 VLR, 可选的, 也可以不设 置标志位,直接为注册到不能提供服务 VLR上的 UE选择可提供服务的 VLR。
本实施例在检测到 VLR不能提供服务后,移动管理网元为注册到不能提 供服务的 VLR的 UE直接选择一个可提供服务的 VLR并实现 UE在该可提供 服务的 VLR的 CS域注册, 可以快速实现 VLR故障后, UE到 CS域的重新 注册, 保证后续下行 CS语音呼叫或上下行短消息业务的成功传输, 提升用 户体验, 避免运营商被投诉与客户流失的风险。
图 3为本发明实施例提供的另一种 VLR故障处理方法的流程示意图,本 实施例中, 移动管理网元在检测到 VLR不能提供服务后, 且在接收到 UE发 送的联合附着请求消息或联合位置更新请求消息时, 选择 VLR, 具体包括: 步骤 301: UE发起联合注册流程并成功注册到移动管理网元与 VLR1。 步骤 302: VLR1不能提供服务。
步骤 303: 移动管理网元检测到 VLR1 不能提供服务, 并记录标志位, 该标志位用于标识 VLR1不能提供服务。
步骤 301~303的具体内容可以参见图 2所示实施例中的步骤 201~203 , 在此不再赘述。
步骤 304: UE向移动管理网元发送联合附着请求消息或联合位置更新请 求消息。
当移动管理网元为 MME时, 该联合位置更新请求消息为联合跟踪域更 新请求消息;
当移动管理网元为 SGSN时, 该联合位置更新请求消息为联合路由域更 新请求消息。
步骤 305: 移动管理网元为该 UE选择可提供服务的 VLR, 该可提供服 务的 VLR为 VLR2。
步骤 306: 移动管理网元向可提供服务的 VLR发起位置更新流程, 即, 移动管理网元向 VLR2发送位置更新请求消息。
步骤 307: 可提供服务的 VLR向 HLR或 HSS ( HLR/HSS )发起更新位 置流程, 即, VLR2向 HLR/HSS发送更新位置请求消息。
步骤 308: UE联合注册到移动管理网元与 VLR2。
步骤 305~308的具体内容可以参见图 2所示实施例中的步骤 204~207 , 在此不再赘述。
进一步的, 当移动管理网元检测到 VLR1恢复服务后, 则可以删除上述 步骤 303中所记录的标志位, 之后可以由 VLR1继续为 UE服务。
其中, 移动管理网元检测到 VLR1恢复服务可以包括:
当移动管理网元为 MME时, MME收到 VLR1的探测响应; 或者, MME 检测到与 VLR1之间至少有一个 SCTP关联处于服务态。
当移动管理网元为 SGSN时, SGSN收到 VLR1的探测响应;或者, SGSN 检测到与 VLR1之间至少有一个链路连接处于服务态。
另外, 本实施例以设置标志位为例, 移动管理网元可以 居该标志位, 为该标志位标识的 VLR上注册的 UE选择可提供服务的 VLR, 可选的, 也可 以不设置标志位, 直接为不能提供服务的 VLR上注册的 UE选择可提供服务 的 VLR。
本实施例在检测到 VLR不能提供服务, 且收到 UE发送的联合附着请求 消息或联合位置更新请求消息后, 为注册到不能提供服务的 VLR的 UE选择 一个可提供服务器的 VLR并实现 UE在该可提供服务的 VLR的 CS域注册, 可以快速实现 VLR故障后, UE到 CS域的注册, 保证后续下行 CS语音呼叫 或上下行短消息业务的成功传输, 提升用户体验, 避免运营商被投诉与客户 流失的风险。
图 4为本发明实施例提供的另一种 VLR故障处理方法的流程示意图,本 实施例中, 移动管理网元在检测到 VLR不能提供服务后, 主动请求 UE执行 联合位置更新流程, 在接收到 UE发送的联合位置更新请求消息后, 选择 VLR, 具体包括:
步骤 401: UE发起联合注册流程并成功注册到移动管理网元与 VLR1。 步骤 402: VLR1不能提供服务。
步骤 403: 移动管理网元检测到 VLR1 不能提供服务, 并记录标志位, 该标志位用于标识 VLR1不能提供服务。
步骤 401~403的具体内容可以参见图 2所示实施例中的步骤 201~203 , 在此不再赘述。
之后, 当该 UE处于空闲态时, 执行步骤 404a和步骤 404b以及步骤 405 及其后续步骤, 当该 UE处于连接态时, 直接执行步骤 405及其后续步骤。
步骤 404a: 移动管理网元向该 UE发送寻呼消息。
步骤 404b: UE向移动管理网元发送业务请求消息作为寻呼响应。
步骤 405:移动管理网元请求注册到 VLR1的 UE执行联合位置更新流程, 即, 移动管理网元向 UE发送分离请求消息。
该分离请求消息中携带的分离类型为 "IMSI分离" , 以指示 UE发起联 合位置更新流程。
其中, 移动管理网元请求注册到 VLR1 的 UE执行联合位置更新流程的 目的是实现该 UE的 CS业务的重新附着, 即本实施例中, UE的 CS业务的 重新附着是通过执行联合位置更新流程实现的。 需要说明的是, UE的 CS业 务, 在 EPS网络中称为非 EPS业务; 在 2G/3G网络中, 称为非 GPRS业务。
步骤 406: UE向移动管理网元发送联合位置更新请求消息。
该联合位置更新请求消息中携带的更新类型为 "联合位置更新并 IMSI 附着" , 以确保 UE注册到 CS域。
当移动管理网元为 MME时, 该联合位置更新请求消息为联合跟踪域更 新请求消息, 该消息中携带的更新类型为 "联合跟踪域 /位置域更新并 IMSI 附着" ;
当移动管理网元为 SGSN时, 该联合位置更新请求消息为联合路由域更 新请求消息, 该消息中携带的更新类型为 "联合路由域 /位置域更新并 IMSI 附着" 。 步骤 407: 移动管理网元为该 UE选择可提供服务的 VLR, 该可提供服 务的 VLR为 VLR2。
步骤 408: 移动管理网元向可提供服务的 VLR发起位置更新流程, 即, 移动管理网元向 VLR2发送位置更新请求消息。
步骤 409: 可提供服务的 VLR向 HLR或 HSS ( HLR/HSS )发起更新位 置流程, 即, VLR2向 HLR/HSS发送更新位置请求消息。
步骤 410: UE联合注册到移动管理网元与 VLR2。
步骤 407~410的具体内容可以参见图 2所示实施例中的步骤 204~207 , 在此不再赘述。
进一步的, 当移动管理网元检测到 VLR1恢复服务后, 则可以删除步骤
403设置的标志位, 之后可以由 VLR1继续为 UE服务。
其中, 移动管理网元检测到 VLR1恢复服务可以包括:
当移动管理网元为 MME时, MME收到 VLR1的探测响应; 或者, MME 检测到与 VLR1之间至少有一个 SCTP关联处于服务态。
当移动管理网元为 SGSN时, SGSN收到 VLR1的探测响应;或者, SGSN 检测到与 VLR1之间至少有一个链路连接处于服务态。
另外, 当原本注册到 VLR1上的 UE的数量较多时, 为了避免同时触发 UE发起联合位置更新流程可能导致的信令拥塞问题,移动管理网元可以分批 次向每个 UE发送寻呼消息或分离请求消息。
另外, 本实施例以设置标志位为例, 移动管理网元可以 居该标志位, 为该标志位标识的 VLR上注册的 UE选择可提供服务的 VLR, 可选的, 也可 以不设置标志位, 直接为不能提供服务的 VLR上注册的 UE选择可提供服务 的 VLR。
本实施例在检测到 VLR不能提供服务后,移动管理网元主动请求注册到 不能提供服务的 VLR的 UE发起联合位置更新流程并在该流程中, 为该 UE 选择可提供服务的 VLR并实现 UE在该可提供服务的 VLR的 CS域注册,可 以快速实现 VLR故障后, UE到 CS域的注册, 保证后续下行 CS语音呼叫或 上下行短消息业务的成功传输, 提升用户体验, 避免运营商被投诉与客户流 失的风险。
图 5为本发明实施例提供的另一种 VLR故障处理方法的流程示意图,本 实施例中, 移动管理网元在检测到 VLR不能提供服务且收到 UE发送的周期 性位置更新请求消息, 或业务请求消息, 或逻辑链路控制 (Logical Link Control, 简称 LLC ) 帧后, 主动请求 UE执行联合位置更新流程, 在接收到 UE发送的联合位置更新请求消息后, 选择 VLR, 具体包括:
步骤 501: UE发起联合注册流程并成功注册到移动管理网元与 VLR1。 步骤 502: VLR1不能提供服务。
步骤 503: 移动管理网元检测到 VLR1 不能提供服务, 并记录标志位, 该标志位用于标识 VLR1不能提供服务。
步骤 501~503的具体内容可以参见图 2所示实施例中的步骤 201~203 , 在此不再赘述。
步骤 504: UE向移动管理网元发送周期性位置更新请求消息, 或业务请 求消息, 或 LLC帧。
当移动管理网元为 MME时, 该周期性位置更新请求消息为周期性跟踪 域更新请求消息;
当移动管理网元为 SGSN时, 该周期性位置更新请求消息为周期性路由 域更新请求消息。
需要说明的是, UE发送的 LLC帧,是指在 LLC子层发送的数据包 /数据 块, 也称为逻辑链路控制协议数据单元(Protocol Data Unit, PDU ) 。
步骤 505:移动管理网元请求注册到 VLR1的 UE执行联合位置更新流程, 即, 移动管理网元向 UE发送分离请求消息。
步骤 506: UE向移动管理网元发送联合位置更新请求消息。
步骤 507: 移动管理网元为该 UE选择可提供服务的 VLR, 该可提供服 务的 VLR为 VLR2。
步骤 508: 移动管理网元向可提供服务的 VLR发起位置更新流程, 即, 移动管理网元向 VLR2发送位置更新请求消息。
步骤 509: 可提供服务的 VLR向 HLR或 HSS ( HLR/HSS )发起更新位 置流程, 即, VLR2向 HLR发送更新位置请求消息。
步骤 510: UE联合注册到移动管理网元与 VLR2。
步骤 505~510的具体内容可以参见图 4所示实施例中的步骤 405~410, 在此不再赘述。 进一步的, 当移动管理网元检测到 VLR1恢复服务后, 则可以删除步骤 503设置的标志位, 之后可以由 VLR1继续为 UE服务。
其中, 移动管理网元检测到 VLR1恢复服务可以包括:
当移动管理网元为 MME时, MME收到 VLR1的探测响应; 或者, MME 检测到与 VLR1之间至少有一个 SCTP关联处于服务态。
当移动管理网元为 SGSN时, SGSN收到 VLR1的探测响应;或者, SGSN 检测到与 VLR1之间至少有一个链路连接处于服务态。
另外, 移动管理网元发送分离请求消息给 UE后, UE可以继续执行周期 性位置更新流程或业务请求流程。
另外, 本实施例以设置标志位为例, 移动管理网元可以 居该标志位, 为该标志位标识的 VLR上注册的 UE选择可提供服务的 VLR, 可选的, 也可 以不设置标志位, 直接为不能提供服务的 VLR上注册的 UE选择可提供服务 的 VLR。
本实施例在检测到 VLR不能提供服务且 UE发起周期性位置更新请求或 业务请求时, 移动管理网元主动请求注册到不能提供服务的 VLR的 UE发起 联合位置更新流程并在该流程中, 为该 UE选择可提供服务的 VLR并实现 UE在该可提供服务的 VLR的 CS域注册, 可以快速实现 VLR故障后, UE 到 CS域的注册,保证后续下行 CS语音呼叫或上下行短消息业务的成功传输, 提升用户体验, 避免运营商被投诉与客户流失的风险。
图 6为本发明实施例提供的一种移动管理网元的结构示意图, 包括检测 模块 61、 请求模块 62和选择模块 63; 检测模块 61用于检测到 VLR不能提 供服务; 请求模块 62用于请求注册到所述 VLR的用户设备 UE执行联合位 置更新流程;选择模块 63用于接收到来自所述 UE的联合位置更新请求消息, 为所述 UE选择可提供服务的 VLR, 使得所述 UE注册到所述可提供服务的 VLR。
可选的, 该网元还可以包括:
记录模块,用于为所述 VLR记录标志位,所述标志位用于标识所述 VLR 不能提供服务。
可选的, 所述选择模块具体用于: 为注册到所述标志位标识的 VLR 的 UE选择可提供服务的 VLR, 使得所述 UE注册到所述可提供服务的 VLR。 可选的, 所述请求模块具体用于:
向所述 UE发送分离请求消息,所述分离请求消息的分离类型为 IMSI分 离。
可选的, 该网元还可以包括:
收发单元, 所述收发单元用于:
接收到所述 UE发送的周期性位置更新请求消息, 或者业务请求消息, 或者逻辑链路控制 LLC帧;
或者,
若所述 UE处于空闲态, 向所述 UE发送寻呼消息, 并接收到所述 UE发 送的与所述寻呼消息对应的业务请求消息。
可选的, 该网元还可以包括:
删除模块, 用于在检测到所述 VLR恢复服务后, 删除所述标志位, 以便 所述 VLR重新为所述 UE服务。
可选的, 所述检测模块具体用于:
没有收到所述 VLR的探测响应; 或者,
当所述移动管理网元为 MME时, 检测到与所述 VLR之间没有 SCTP关 联处于服务态; 或者,
当所述移动管理网元为 SGSN时,检测到与所述 VLR之间没有链路连接 处于服务态。
可选的, 所述选择模块具体用于:
接收到来自所述 UE的联合位置更新请求消息,为所述 UE选择可提供服 务的 VLR, 向所述可提供服务的 VLR发起位置更新流程, 并通过所述可提 供服务的 VLR向 HLR或 HSS发起更新位置流程, 以实现所述 UE注册到所 述可提供服务的 VLR。
可选的, 该移动管理网元可以是 MME, 此时, 上述的位置更新请求消息 为跟踪域更新请求消息, 上述的联合位置更新请求消息为联合跟踪域更新请 求消息; 或者, 该移动管理网元也可以是 SGSN, 此时, 上述的位置更新请 求消息为路由域更新请求消息, 上述的联合位置更新请求消息为联合路由域 更新请求消息。
可选的, 上述可提供服务的 VLR与所述不能提供服务的 VLR在相同的 VLR资源池。
本实施例移动管理网元可以检测 VLR是否能提供服务,并在检测到 VLR 不能提供服务后, 为注册到不能提供服务的 VLR 的 UE选择可提供服务的 VLR, 进而可以由该可提供服务的 VLR继续为原本注册到不能提供服务的 VLR的 UE提供服务,保证 CS域下行语音业务和 /或短消息业务的正常进行, 降低用户投诉, 提高用户体验及运营商服务能力。
图 7为本发明实施例提供的另一种移动管理网元的结构示意图, 包括处 理器 71和收发器 72; 处理器 71用于检测到 VLR不能提供服务; 收发器 72 用于请求注册到所述 VLR的用户设备 UE执行联合位置更新流程, 接收到来 自所述 UE的联合位置更新请求消息; 处理器 71还用于为所述 UE选择可提 供服务的 VLR, 使得所述 UE注册到所述可提供服务的 VLR。
可选的, 处理器 71还用于: 为所述 VLR记录标志位, 所述标志位用于 标识所述 VLR不能提供服务。
可选的, 处理器 71具体用于为注册到所述标志位标识的 VLR的 UE选 择可提供服务的 VLR。
可选的, 收发器 72具体用于向所述 UE发送分离请求消息, 所述分离请 求消息的分离类型为 IMSI分离,以实现请求注册到所述不能提供服务的 VLR 的 UE发送联合位置更新请求消息。
可选的, 收发器 72还用于接收到所述 UE发送的周期性位置更新请求消 息, 或者业务请求消息, 或者逻辑链路控制 LLC帧; 或者,
若所述 UE处于空闲态, 向所述 UE发送寻呼消息, 并接收到所述 UE发 送的与所述寻呼消息对应的业务请求消息。
可选的, 处理器 71还用于: 在检测到所述 VLR恢复服务后, 删除所述 标志位 , 以便所述 VLR重新为所述 UE服务。
可选的, 处理器 71具体用于: 没有收到所述 VLR的探测响应; 或者, 当所述移动管理网元为 MME时, 检测到与所述 VLR之间没有 SCTP关联处 于服务态; 或者, 当所述移动管理网元为 SGSN时, 检测到与所述 VLR之间 没有链路连接处于服务态。
可选的, 收发器 72还用于: 向所述可提供服务的 VLR发起位置更新流 现所述 UE注册到所述可提供服务的 VLR。
可选的, 该移动管理网元可以是 MME, 此时, 上述的位置更新请求消息 为跟踪域更新请求消息, 上述的联合位置更新请求消息为联合跟踪域更新请 求消息; 或者, 该移动管理网元也可以是 SGSN, 此时, 上述的位置更新请 求消息为路由域更新请求消息, 上述的联合位置更新请求消息为联合路由域 更新请求消息。
可选的, 上述选择的可提供服务的 VLR与所述不能提供服务的 VLR在 相同的 VLR资源池。
上述本发明实施例揭示的方法可以应用于处理器 71中,或者说由处理器 71结合收发器 72实现。处理器可以是通用处理器、数字信号处理器(DSP ) 、 专用集成电路(ASIC ) 、 现成可编程门阵列 (FPGA )或者其他可编程逻辑 器件、 分立门或者晶体管逻辑器件、 分立硬件组件。 可以实现或者执行本发 明实施例中的公开的各方法、 步骤及逻辑框图。 通用处理器可以是微处理器 或者该处理器也可以是任何常规的处理器等。 结合本发明实施例所公开的方 法的步骤可以直接体现为硬件处理器执行完成, 或者用处理器中的硬件及软 件模块组合执行完成。 软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储 介质中。
上述的收发器可以通过一个或多个天线收发无线信号。 收发器可以由分 立的发送器和接收器组成, 也可以是耦合在一起的具有接收和发送功能的器 件。
本实施例移动管理网元可以检测 VLR是否能提供服务,并在检测到 VLR 不能提供服务后, 为注册到不能提供服务的 VLR 的 UE选择可提供服务的 VLR, 进而可以由该可提供服务的 VLR继续为原本注册到不能提供服务的 VLR的 UE提供服务,保证 CS域下行语音业务和 /或短消息业务的正常进行, 降低用户投诉, 提高用户体验及运营商服务能力。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 仅以 上述各功能模块的划分进行举例说明, 实际应用中, 可以根据需要而将上 述功能分配由不同的功能模块完成, 即将装置的内部结构划分成不同的功 能模块, 以完成以上描述的全部或者部分功能。 上述描述的系统, 装置和 单元的具体工作过程, 可以参考前述方法实施例中的对应过程, 在此不再 赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置 和方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅 是示意性的, 例如, 所述模块或单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有另外的划分方式, 例如多个单元或组件可以结合或者可 以集成到另一个系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示 或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口, 装 置或单元的间接耦合或通信连接, 可以是电性, 机械或其它的形式。 作为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地 方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的 部分或者全部单元来实现本实施例方案的目的。
上述集成的单元既可以釆用硬件的形式实现, 也可以釆用软件功能单 元的形式实现。 所述集成的单元如果以软件功能单元的形式实现并作为独 立的产品销售或使用时, 可以存储在一个计算机可读取存储介质中。 基于 这样的理解, 本申请的技术方案本质上或者说对现有技术做出贡献的部分 或者该技术方案的全部或部分可以以软件产品的形式体现出来, 该计算机 软件产品存储在一个存储介质中, 包括若干指令用以使得一台计算机设备 (可以是个人计算机, 服务器, 或者网络设备等) 或处理器 (processor ) 执行本申请各个实施例所述方法的全部或部分步骤。 而前述的存储介质包 括: U盘、 移动硬盘、 只读存储器(ROM, Read-Only Memory ) 、 随机存 取存储器 (RAM, Random Access Memory ) 、 磁碟或者光盘等各种可以 存储程序代码的介质。
以上所述, 以上实施例仅用以说明本申请的技术方案, 而非对其限制; 尽管参照前述实施例对本申请进行了详细的说明, 本领域的普通技术人员应 当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其 中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技术方案 的本质脱离本申请各实施例技术方案的精神和范围。

Claims

权 利 要 求
1、 一种拜访位置寄存器 VLR故障处理方法, 其特征在于, 包括: 移动管理网元检测到 VLR不能提供服务;
所述移动管理网元请求注册到所述 VLR的用户设备 UE执行联合位置更 新流程;
所述移动管理网元接收到来自所述 UE 的联合位置更新请求消息, 为所 述 UE选择可提供服务的 VLR,使得所述 UE注册到所述可提供服务的 VLR。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
所述移动管理网元为所述 VLR记录标志位, 所述标志位用于标识所述 VLR不能提供服务。
3、 根据权利要求 2所述的方法, 其特征在于, 所述为所述 UE选择可提 供服务的 VLR, 包括:
为注册到所述标志位标识的 VLR的 UE选择可提供服务的 VLR。
4、根据权利要求 1所述的方法, 其特征在于, 所述请求注册到所述 VLR 的 UE执行联合位置更新流程, 包括:
向所述 UE发送分离请求消息, 所述分离请求消息的分离类型为国际移 动用户识别码 IMSI分离。
5、 根据权利要求 4所述的方法, 其特征在于, 在向所述 UE发送分离请 求消息之前, 所述方法还包括:
接收到所述 UE发送的周期性位置更新请求消息, 或者业务请求消息, 或者逻辑链路控制 LLC帧;
或者,
若所述 UE处于空闲态, 向所述 UE发送寻呼消息, 并接收到所述 UE发 送的与所述寻呼消息对应的业务请求消息。
6、 根据权利要求 5所述的方法, 其特征在于, 所述位置更新请求消息, 包括:
若所述移动管理网元为移动管理实体 MME,则所述位置更新请求消息为 跟踪域更新请求消息; 或者,
若所述移动管理网元为服务通用分组无线业务支持节点 SGSN, 则所述 位置更新请求消息为路由域更新请求消息。
7、 根据权利要求 1所述的方法, 其特征在于,
所述选择的可提供服务的 VLR 与所述不能提供服务的 VLR在相同的 VLR资源池。
8、 根据权利要求 2所述的方法, 其特征在于, 还包括:
所述移动管理网元在检测到所述 VLR恢复服务后, 删除所述标志位, 以 便所述 VLR重新为所述 UE服务。
9、 根据权利要求 1所述的方法, 其特征在于, 所述检测到 VLR不能提 供服务, 包括:
没有收到所述 VLR的探测响应; 或者,
当所述移动管理网元为 MME时,检测到与所述 VLR之间没有流控制传 输协议 SCTP关联处于服务态; 或者,
当所述移动管理网元为 SGSN时,检测到与所述 VLR之间没有链路连接 处于服务态。
10、 根据权利要求 1所述的方法, 其特征在于, 所述使得所述 UE注册 到所述可提供服务的 VLR, 包括:
向所述可提供服务的 VLR发起位置更新流程,并通过所述可提供服务的 VLR向归属位置寄存器 HLR或归属用户服务器 HSS发起更新位置流程, 以 实现所述 UE注册到所述可提供服务的 VLR。
11、 一种移动管理网元, 其特征在于, 包括:
检测模块, 用于检测到拜访位置寄存器 VLR不能提供服务;
请求模块, 用于请求注册到所述 VLR的用户设备 UE执行联合位置更新 流程;
选择模块, 用于接收到来自所述 UE 的联合位置更新请求消息, 为所述 UE选择可提供服务的 VLR, 使得所述 UE注册到所述可提供服务的 VLR。
12、 根据权利要求 11所述的移动管理网元, 其特征在于, 还包括: 记录模块,用于为所述 VLR记录标志位,所述标志位用于标识所述 VLR 不能提供服务。
13、 根据权利要求 12所述的移动管理网元, 其特征在于, 所述选择模块 具体用于: 为注册到所述标志位标识的 VLR的 UE选择可提供服务的 VLR, 使得所述 UE注册到所述可提供服务的 VLR。
14、 根据权利要求 11所述的移动管理网元, 其特征在于, 所述请求模块 具体用于:
向所述 UE发送分离请求消息, 所述分离请求消息的分离类型为国际移 动用户识别码 IMSI分离。
15、 根据权利要求 14所述的移动管理网元, 其特征在于, 还包括: 收发 单元, 所述收发单元用于:
接收到所述 UE发送的周期性位置更新请求消息, 或者业务请求消息, 或者逻辑链路控制 LLC帧;
或者,
若所述 UE处于空闲态, 向所述 UE发送寻呼消息, 并接收到所述 UE发 送的与所述寻呼消息对应的业务请求消息。
16、 根据权利要求 12所述的移动管理网元, 其特征在于, 还包括: 删除模块, 用于在检测到所述 VLR恢复服务后, 删除所述标志位, 以便 所述 VLR重新为所述 UE服务。
17、 根据权利要求 11所述的移动管理网元, 其特征在于, 所述检测模块 具体用于:
没有收到所述 VLR的探测响应; 或者,
当所述移动管理网元为 MME时,检测到与所述 VLR之间没有流控制传 输协议 SCTP关联处于服务态; 或者,
当所述移动管理网元为 SGSN时,检测到与所述 VLR之间没有链路连接 处于服务态。
18、 根据权利要求 11所述的移动管理网元, 其特征在于, 所述选择模块 具体用于:
接收到来自所述 UE的联合位置更新请求消息,为所述 UE选择可提供服 务的 VLR, 向所述可提供服务的 VLR发起位置更新流程, 并通过所述可提 供服务的 VLR向归属位置寄存器 HLR或归属用户服务器 HSS发起更新位置 流程, 以实现所述 UE注册到所述可提供服务的 VLR。
PCT/CN2013/077533 2012-09-29 2013-06-20 拜访位置寄存器故障处理方法和移动管理网元 WO2014048142A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105050125A (zh) * 2015-06-23 2015-11-11 武汉虹信通信技术有限责任公司 一种面向用户体验的移动数据业务质量评测方法及装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1819699A (zh) * 2005-10-21 2006-08-16 华为技术有限公司 防止移动终结呼叫失败的方法及系统
CN101060652A (zh) * 2006-05-31 2007-10-24 华为技术有限公司 一种应对移动交换节点故障的系统、设备及方法
US20080004014A1 (en) * 2006-06-30 2008-01-03 Nokia Corporation System and method for IMSI list based VLR resilience
CN101159921A (zh) * 2006-12-01 2008-04-09 华为技术有限公司 移动交换中心池中被叫恢复的方法、系统及设备
CN101179815A (zh) * 2007-12-12 2008-05-14 华为技术有限公司 移动交换中心池故障处理方法、装置及系统
CN102217338A (zh) * 2011-05-03 2011-10-12 华为技术有限公司 用于接收或发送短消息的方法和装置
WO2012022029A1 (zh) * 2010-08-17 2012-02-23 华为技术有限公司 位置更新方法及移动性管理实体
CN102378208A (zh) * 2010-08-11 2012-03-14 中兴通讯股份有限公司 一种vlr故障的处理方法及系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1819699A (zh) * 2005-10-21 2006-08-16 华为技术有限公司 防止移动终结呼叫失败的方法及系统
CN101060652A (zh) * 2006-05-31 2007-10-24 华为技术有限公司 一种应对移动交换节点故障的系统、设备及方法
US20080004014A1 (en) * 2006-06-30 2008-01-03 Nokia Corporation System and method for IMSI list based VLR resilience
CN101159921A (zh) * 2006-12-01 2008-04-09 华为技术有限公司 移动交换中心池中被叫恢复的方法、系统及设备
CN101179815A (zh) * 2007-12-12 2008-05-14 华为技术有限公司 移动交换中心池故障处理方法、装置及系统
CN102378208A (zh) * 2010-08-11 2012-03-14 中兴通讯股份有限公司 一种vlr故障的处理方法及系统
WO2012022029A1 (zh) * 2010-08-17 2012-02-23 华为技术有限公司 位置更新方法及移动性管理实体
CN102217338A (zh) * 2011-05-03 2011-10-12 华为技术有限公司 用于接收或发送短消息的方法和装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105050125A (zh) * 2015-06-23 2015-11-11 武汉虹信通信技术有限责任公司 一种面向用户体验的移动数据业务质量评测方法及装置
CN105050125B (zh) * 2015-06-23 2019-01-29 武汉虹信通信技术有限责任公司 一种面向用户体验的移动数据业务质量评测方法及装置

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