WO2014000240A1 - Procédé d'enregistrement, sgsn, msc, et système d'enregistrement - Google Patents

Procédé d'enregistrement, sgsn, msc, et système d'enregistrement Download PDF

Info

Publication number
WO2014000240A1
WO2014000240A1 PCT/CN2012/077819 CN2012077819W WO2014000240A1 WO 2014000240 A1 WO2014000240 A1 WO 2014000240A1 CN 2012077819 W CN2012077819 W CN 2012077819W WO 2014000240 A1 WO2014000240 A1 WO 2014000240A1
Authority
WO
WIPO (PCT)
Prior art keywords
sgsn
msc
message
request message
location update
Prior art date
Application number
PCT/CN2012/077819
Other languages
English (en)
Chinese (zh)
Inventor
陈霞云
孙晓峰
叶晓炳
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN2012800005254A priority Critical patent/CN102870442A/zh
Priority to PCT/CN2012/077819 priority patent/WO2014000240A1/fr
Publication of WO2014000240A1 publication Critical patent/WO2014000240A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing 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
    • H04W8/08—Mobility data transfer
    • H04W8/14—Mobility data transfer between corresponding nodes

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for registering in a GPRS (General Packet Radio Service) service support node (SGSN, Serving GPRS Support Node) pool, a SGSN, and a mobile switching center. (MSC, Mobile Switching Center) and registered systems.
  • GPRS General Packet Radio Service
  • SGSN Serving GPRS Support Node
  • MSC Mobile Switching Center
  • the SGSN pool is composed of multiple SGSNs. Multiple SGSNs in the SGSN pool jointly serve mobile stations (MSs) in the service area of the SGSN pool.
  • MSs mobile stations
  • SGSN pool technology usually, however, that some abnormal scenarios may cause unbalanced load on each SGSN in the SGSN pool or an SGSN in the SGSN pool needs to be upgraded. Therefore, the SGSN in the SGSN pool or the SGSN to be upgraded needs to be served.
  • the MS migrates to other SGSNs in the SGSN pool.
  • the embodiment of the present invention proposes a registration method, an SGSN, an MSC, and a registered system, which are intended to reduce the impact on the voice service of the MS in the state of the joint registration in the process of migrating the mobile station.
  • a registration method including: after receiving a joint-originated MS-initiated periodic route area update (RAU, Route Area Update) request message, the second SGSN sends an SGSN context request message to the first SGSN.
  • the MS is migrated from the first SGSN to the second SGSN; the second SGSN receives an interface message between the SGSNs from the first SGSN, where the interface message between the SGSNs includes a joint attachment identifier and The Mobile Switching Center (MSC) identifies information; the second SGSN initiates a location update to the MSC according to the MSC identity information.
  • RAU Route Area Update
  • a registration method including: receiving, by a first SGSN, an SGSN Context Request message for acquiring an MS sent by a second SGSN, where the MS is in the first SGSN Performing joint registration; in response to the SGSN Context Request message, the first SGSN sends an SGSN Context Response message to the second SGSN, where the SGSN Context Response message includes a Joint Attachment Identity and MSC Identity Information.
  • a registration method including: the MSC receiving a location update request message sent by the second SGSN; and in response to the location update request message, the MSC sends a location update accept message to the second SGSN.
  • an SGSN including: a first sending unit, configured to send an SGSN context request message to the first SGSN after receiving the periodic RAU request message initiated by the jointly registered MS, where the MS The first SGSN is migrated to the second SGSN; the first receiving unit is configured to receive an interface message between the SGSNs from the first SGSN, where the interface message between the SGSNs includes a joint attach identifier and MSC identifier information; And sending a location update to the MSC according to the MSC identity information.
  • an SGSN including: a second receiving unit, configured to receive an SGSN Context Request message for acquiring an MS sent by a second SGSN, where the MS performs joint registration in the first SGSN; And sending, in response to the SGSN Context Request message, an SGSN Context Response message to the second SGSN, where the SGSN Context Response message includes a Joint Attachment Identity and MSC Identity Information.
  • an MSC including: a third receiving unit, configured to receive a location update request message sent by the second SGSN, and a third sending unit, configured to respond to the location update request message to the The second SGSN sends a location update accept message.
  • a registration system comprising: the above SGSN and MSC.
  • the new SGSN initiates a location update to the MSC, so that the MS in the state of the joint registration continues to maintain the joint registration, thereby reducing the impact on the voice service of the MS in the state of the joint registration.
  • the embodiment of the present invention can solve the problem that the joint registration MS of the SGSN pool migrates to the new SGSN in the case where the Gs interface exists, or the Iu/Gb interface of the SGSN that the MS jointly registers causes the user to initiate the periodic RAU by the BSC/RNC.
  • the problem of the joint registration is not maintained in the scenario of the other normal SGSNs in the SGSN pool. This ensures that the voice service of the CS (Circuit Switched Domain) of the migrated MS is smoother, and the user's CS voice service is improved.
  • CS Circuit Switched Domain
  • FIG. 1 is a flow chart of a method of registration in accordance with one embodiment of the present invention.
  • FIG. 2 is a flow chart of a method of registration in accordance with another embodiment of the present invention.
  • FIG. 3 is a flow chart of a method of registration in accordance with another embodiment of the present invention.
  • Figure 4 shows a specific embodiment of a method of registration in accordance with the present invention.
  • Figure 5 illustrates another embodiment of a method of registration in accordance with the present invention.
  • FIG. 6 is a schematic structural diagram of an SGSN according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an SGSN according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing the structure of an MSC according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a system for registration according to an embodiment of the present invention. detailed description
  • the technical solution of the present invention can be applied to various communication systems, such as: GSM, Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), GPRS, Long Term Evolution (LTE).
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS Long Term Evolution
  • the mobile station (MS) in the present invention may also be referred to as a user equipment (User
  • Radio Access Network e.g., RAN, Radio Access Network
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (Node B) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE.
  • BTS Base Transceiver Station
  • Node B base station
  • eNB evolved base station
  • e-NodeB evolutional Node B
  • the first SGSN in the SGSN pool (that is, the SGSN to be migrated) is migrated to the second SGSN (ie, new)
  • the second SGSN cannot determine that the state of the MS is the joint registration state, thereby affecting the CS voice service of the jointly registered MS.
  • the embodiment of the present invention proposes a registration method. As shown in Figure 1, the following steps are included.
  • the second SGSN After receiving the periodic RAU request message initiated by the jointly registered MS, the second SGSN sends an SGSN Context Request message to the first SGSN, where the MS migrates from the first SGSN to the second SGSN.
  • the second SGSN receives an interface message between the SGSNs from the first SGSN, where the interface message between the SGSNs includes a joint attachment identifier and MSC identifier information.
  • the interface message between the SGSNs may be an SGSN context response message.
  • the MSC identification information is the routing area identity (RAI) information of the MS before the migration provided by the first SGSN, or the MSC that is registered by the MS provided by the first SGSN before the migration.
  • RAI routing area identity
  • VLR Visitor Location
  • the location area identifier (LAI, Location) can be derived from the RAI information.
  • the second SGSN can associate the corresponding MSC according to the LAI.
  • the specific association method is, for example, if the MSC does not have a pool network, the LAI and the MSC are corresponding to each other; if the MSC is a pool network, the HAI and the MSSI hash table of the MS correspond to each other. An MSC.
  • the second SGSN initiates a location update to the MSC based on the MSC identity information.
  • the second SGSN finds the corresponding MSC according to the LAI mapped by the RAI information, and sends a location update request message to the MSC. .
  • the second SGSN also receives a Location Update Accept message from the MSC.
  • the second SGSN when the MSC identity information is the VLR number of the MSC registered by the MS provided by the first SGGN before the migration, the second SGSN sends a location update request message to the MSC according to the VLR number, and the second SGSN further The MSC receives a location update accept message.
  • the first SGSN needs to pass the interface message between the SGSNs. For example, the SGSN Context Response message), whether the MS is jointly registered with the joint attachment identifier and the MSC identification information (such as the RAI information of the MS before the migration or the VLR number of the MSC registered by the MS before the migration), and the second SGSN discovers the received interface.
  • the message carries the joint attachment identifier, and the Update Location process needs to be initiated to the MSC/VLR.
  • the second SGSN may select the MSC according to the LAI mapped by the RAI information, so that the MSC selected by the second SGSN and the pre-migration MSC are the same MSC. If the MSC identity information is a VLR number, the second SGSN may select the MSC according to the VLR number, so as to ensure that the MSC registered by the MS before migration and the migrated MSC are the same MSC.
  • the second SGSN receives the SGSN context response message sent by the first SGSN, and finds that the extension field carries the joint attachment identifier indicating that the MS has jointly registered, and the second SGSN sends the base station subsystem application to the MSC/VLR jointly registered by the MS.
  • Part BSSAP, Base Station Sub-system Application Part
  • the MSC/VLR then sends a BSSAP+Location-update-accept Location Update Accept message to the second SGSN.
  • the association between the second SGSN and the MSC/VLR is established.
  • the registration status of the MS in the second SGSN is the joint registration.
  • the new SGSN initiates a location update to the MSC, so that the MS in the state of the joint registration continues to maintain the joint registration, thereby reducing the impact on the voice service of the MS in the state of the joint registration.
  • the embodiment of the present invention can solve the problem that the joint registration MS of the SGSN pool migrates to the new SGSN in the case where the Gs interface exists, or the Iu/Gb interface of the SGSN that the MS jointly registers causes the user to initiate the periodic RAU by the BSC/RNC.
  • the problem of the joint registration is not maintained in the scenario of the other normal SGSNs in the SGSN pool. This ensures that the CS voice service of the migrated MS is smoother and improves the user's CS voice service experience.
  • the first SGSN to be migrated completes the following steps, as shown in FIG. 2.
  • the first SGSN receives the SGSN Context Request message of the MS sent by the second SGSN, where the MS performs joint registration on the first SGSN.
  • the first SGSN in response to the SGSN Context Request message, the first SGSN sends an SGSN Context Response message to the second SGSN, where the SGSN Context Response message includes a joint attachment identifier and
  • the MSC identification information is the RAI information of the MS provided by the first SGSN before the migration, or the VLR number of the MSC registered by the MS provided by the first SGSN before the migration.
  • the new SGSN initiates a location update to the MSC, so that the MS in the state of the joint registration continues to maintain the joint registration, thereby reducing the impact on the voice service of the MS in the state of the joint registration.
  • the embodiment of the present invention can solve the problem that the joint registration MS of the SGSN pool migrates to the new SGSN in the case where the Gs interface exists, or the Iu/Gb interface of the SGSN that the MS jointly registers causes the user to initiate the periodic RAU by the BSC/RNC.
  • the problem of the joint registration is not maintained in the scenario of the other normal SGSNs in the SGSN pool. This ensures that the CS voice service of the migrated MS is smoother and improves the user's CS voice service experience.
  • the MSC receives a location update request message sent by the second SGSN.
  • the MSC sends a location update accept message to the second SGSN in response to the location update request message.
  • the MSC determines whether to initiate an update location procedure to the home location register (HLR, Home Location Register) according to the LAI. .
  • the MSC compares the LAI with its own LAI; if the two are the same, it determines that the MSC does not initiate an update location procedure to the HLR; otherwise, if the two are different, it determines that the MSC initiates an update location procedure to the HLR for the HLR. Record the information of the MSC.
  • the new SGSN initiates a location update to the MSC, so that the MS that is in the state of the joint registration continues to maintain the joint registration, thereby reducing the voice service of the MS in the state of the joint registration. influences.
  • the embodiment of the present invention can solve the problem that the joint registration MS of the SGSN pool migrates to the new SGSN in the case where the Gs interface exists, or the Iu/Gb interface of the SGSN that the MS jointly registers causes the user to initiate the periodic RAU by the BSC/RNC.
  • the problem of the joint registration is not maintained in the scenario of the other normal SGSNs in the SGSN pool. This ensures that the CS voice service of the migrated MS is smoother and improves the user's CS voice service experience.
  • the jointly registered MS is from the first SGSN in the SGSN pool (ie, the SGSN to be migrated)
  • the second SGSN After migrating to the second SGSN (ie, the new SGSN), the second SGSN cannot determine that the state of the MS is a joint registration state, thereby affecting the CS voice service of the jointly registered MS.
  • the SGSN sends a command to trigger the migration process through the O&M (Operation and Maintenance), and the RAN in the SGSN pool needs to be set to the SGSN to be migrated.
  • the migration process can be divided into three phases. Each phase processes the idle state and the MS of the connected state separately, but the final idea of each phase is completely the same.
  • the SGSN to be migrated allocates a packet to a resource identifier (NRI, Network Resource Identifier) by using an Attach Accept message or a RAU accept message to allocate a Packet Temperate Mobile Subscribe Identity (P-TMSI) to the MS.
  • the corresponding bit (bit) bit is filled in Null-NRI (Null-NRI is a special NRI).
  • the RAN When the RAN receives the Null-NRI, it knows that the MS is the user to be migrated, so it will not be selected during routing.
  • the SGSN to be migrated also carries the non-broadcast RAI in the attach accept message or the RAU accept message.
  • the SGSN that uniquely identifies the old side to be migrated in the migration scenario is required.
  • the SGSN in the SGSN pool area uniquely sets a non-broadcast RAI) and a very short periodic RAU timer (the recommended route is 4 seconds). After receiving the attach accept message or the RAU accept message, the MS will enter the idle state, and the periodic RAU timer will be started.
  • the Universal Terrestrial Radio Access Network receives the initial direct transmission message and determines the in-domain non-access stratum (NAS, Non Access Stratum) node selector (IDNNS, Intra Domain NAS Node Selector) cell.
  • NAS Non Access Stratum
  • IDNNS Intra Domain NAS Node Selector
  • the discovery is a Null-NRI, which routes an attach request message or a RAU request message to a non-offloaded SGSN; Global System of Mobile Communication (GSM) Radio Access Network (GERAN, GSM Radio Access Network) Then, through the Temporary Logical Link Identifier (TLLI), the cell discovery is a Null-NRI, and the Attach Request message or the RAU Request message is routed to the non-offloaded SGSN on the new side. Thereby the migration of MS from one SGSN to another SGSN is realized.
  • GSM Global System of Mobile Communication
  • GERAN GSM Radio Access Network
  • TLLI Temporary Logical Link Identifier
  • the SGSN in the non-offload state of the new side cannot determine whether the MS is a joint registration, and the MS associated with the original Gs interface is migrated to the MS.
  • the situation of the user's joint registration status cannot be maintained after the SGSN on the new side. It can be seen that if the MS is jointly registered before the migration, the new SGSN (ie, the non-offloaded SGSN) cannot know that the MS is in the joint registration state through the existing migration process, and the new SGSN does not initiate the update location to the MSC.
  • the SGSN to be migrated responds to the Base Station Sub-system Application Part (BSSAP) + Paging Reject (PAGING-REJECT) message, and the MSC then sets the association status to Gs-Null;
  • BSSAP Base Station Sub-system Application Part
  • PAGING-REJECT Paging Reject
  • the CS domain pages the user, which inevitably increases the called connection delay, directly affects the feeling of the CS voice service of the terminal user, and also increases the signaling message. If the MSC no longer pages the user in the CS domain, the user is called. Business is damaged.
  • the old RAI carried by the MS is a non-broadcast RAI.
  • the broadcast RAI is a special RAI different from the originally planned old RAI.
  • the new SGNS is derived from this non-broadcast RAI during the migration.
  • the LAI is not the location area (LA, Location Area) of the MSC real service, so the LAI of this LA cannot be used by the MSC to determine whether the MS is its own user.
  • Steps 1 to 7 show the process of the MS completing the joint registration on the MSC
  • Steps 8 to 15 show the process of the MS completing the migration from the first SGSN to be migrated to the new second SGSN in the non-unloaded state. .
  • the MS initially accesses the first SGSN to be migrated, and jointly registers with the MSC.
  • the MS sends an RAU message or an attach request message to the first SGSN to be migrated, where the message carries a joint routing area (RA, Routing Area) update information or LA update information, or a joint GPRS. Attachment information or International Mobile Subscriber Identification Number (IMSI, International Mobile Subscriber Identification Number) attachment information.
  • RA Routing Area
  • LA LA update information
  • GPRS Joint GPRS. Attachment information or International Mobile Subscriber Identification Number (IMSI, International Mobile Subscriber Identification Number) attachment information.
  • the first SGSN to be migrated sends a location update message to the MSC/VLR.
  • the MSC/VLR A location update message is sent to the HLR.
  • the HLR sends an Insert Contract Data message to the MSC/VLR.
  • the MSC/VLR sends an Insert Contract Data Acknowledgement message to the HLR.
  • step 6e the HLR sends an Update Location Ack message to the MSC/VLR.
  • step 6f the MSC/VLR sends a location update accept message to the first SGSN to be migrated. In this way, the MS is jointly registered to the MSC.
  • the first SGSN to be migrated sends an update location request message to the HLR.
  • the HLR sends an insert subscription data message to the first SGSN to be migrated.
  • the first SGSN to be migrated sends an insertion subscription data confirmation message to the HLR.
  • the HLR sends an update location confirmation message to the first SGSN to be migrated.
  • the first SGSN to be migrated initiates the migration.
  • the first SGSN to be migrated in step 7 sends an attach accept message or a RAU accept message to the MS, the message carrying a joint routing area (RA, Routing Area) update information or LA update information, or joint GPRS attach information or IMSI attachment information.
  • the P-TMSI is a Null-NRI
  • the RAI is the non-broadcast RAI of the first SGSN to be migrated
  • the periodic RAU timer is set to 4 seconds.
  • the MS sends a RAU complete message or an attach complete message to the first SGSN to be migrated.
  • the MS After the MS enters the idle state, the MS starts a periodic RAU timer. After 4 seconds, in step 9, the MS sends a periodic RAU request message to the second SGSN in the non-offload state. Therefore, the Radio Network Controller (RNC) or the Base Station Controller (BSC), according to the TLLI carrying the Null-NRI, identifies that the MS is a user to be migrated, and then routes the MS to the non- Unloading the second SGSN.
  • RNC Radio Network Controller
  • BSC Base Station Controller
  • step 9 the RAU request message received by the second SGSN in the non-unloaded state, wherein the update type of the RAU request message is "Regular Update". Since the status of the TMSI is not carried in the periodic RAU request message, the new non-offloaded second SGSN cannot know whether the MS has been jointly registered according to the RAU request message.
  • the second SGSN in the non-offload state determines that the first SGSN on the old side before the migration is the SGSN to be migrated according to the old RAI information (actually the non-broadcast RAI information of the first SGSN to be migrated), and The first SGSN to be migrated sends an SGSN context request message.
  • the SGSN Context Request message carries old RAI information, TLLI or P-TMSI and other cells.
  • step 11 of the prior art the first SGSN to be migrated finds that the MS is based on the P-TMSI.
  • the user on the SGSN and responds to the SGSN Context Response message to the second SGSN in the non-offload state.
  • the SGSN context response message carries a mobility management (MM, Mobility Management) context and a Packet Data Protocol (PDP) context.
  • MM mobility management
  • PDP Packet Data Protocol
  • the first SGSN to be migrated sends an SGSN Context Response message to the new second SGSN, where the message carries the joint attachment identifier and the MSC identifier information.
  • the RAI information is the RAI information carried in the RAU accept or attach accept message, that is, the non-broadcast RAI).
  • step 12 the new second SGSN sends an SGSN Context Confirmation message to the first SGSN to be migrated.
  • step 13a the new second SGSN sends an update location message to the HLR.
  • step 13b the HLR sends a Cancel Location message to the second SGSN.
  • step 13c the second SGSN responds to the HLR by canceling the location confirmation message.
  • step 13d the HLR sends an Insert Contract Data message to the second SGSN.
  • step 13e the second SGSN inserts a subscription data acknowledgement message to the HLR.
  • step 13f the HLR sends an update location confirmation message to the second SGSN in the non-offload state.
  • the second SGSN in the non-offload state sends a location update message to the MSC/VLR, where the message carries the LAI mapped by the RAI information of the MS provided by the first SGSN before the migration.
  • the MSC/VLR sends a Location Update Accept message to the new second SGSN. If the MSC/VLR reassigns the Temporate Mobile Subscribe Identity (TMSI), the Location Update Accept message will carry the new TMSI.
  • TMSI Temporate Mobile Subscribe Identity
  • the second SGSN receives the location update accept message, the association with the MSC/VLR is established.
  • the state of the MS in the new second SGSN is the joint Gs (Gs- Associated), and the second SGSN retains the VLR number.
  • step 15 the new second SGSN sends a RAU accept message to the MS.
  • step 16a the MS sends a RAU Complete message to the new second SGSN.
  • the SGSN sends a TMSI Reallocation Complete message to the MSC/VLR.
  • the new MSC/VLR selected by the new second SGSN is different from the old MSC/VLR, for example, in the MSC pool scenario, the MS registered MSC fails, the new MSC updates the request message according to the received location.
  • the old LAI judges that the MS is not its own MS, then the new MSC sends an update location message to the HLR, and the HLR goes to the old MSC/VLR to cancel the location.
  • the MSC/VLR information retained on the HLR is the new MSC/VLR letter. Interest.
  • the first embodiment can avoid the problem that the joint registration status of the MS cannot be maintained during the migration process, and can also avoid the migration of the MS to the new SGSN.
  • the new SGSN selects the MSC, the different MSCs may be selected.
  • the MSC can judge that the MS is not its own registered user according to the old LAI, and then automatically update to the HLR, and avoid the following abnormal scenario, that is, the HLR.
  • the sending of the cancel location message fails, and the old MSC does not delete the user data, and the subsequent user returns to the old MSC.
  • the MSC does not go to the HLR. Update, then the CS voice service of the MS as the called user will fail.
  • the new second SGSN needs to map the current LAI based on the pre-migration RAI information of the MS provided by the first SGSN, and select the MSC through the current LAI. If the MSC is a non-MSC pool networking scenario, the new second SGSN selects the MSC based on the current LAI; if the MSC is the networking scenario of the MSC pool, the new second SGSN needs to be based on the current LAI and IMSI hashes. Table to choose MSC. This ensures that the MSC selected by the new second SGSN is the same MSC as the MSC actually registered by the MS.
  • the first embodiment can solve the problem that the joint registration user cannot maintain the state of the joint registration when the user is migrated, and the paging failure of the Gs interface is ensured to ensure that the CS main callee service of the migrated MS is smoother. The delay is reduced, thereby improving the user's feeling of CS business.
  • the first embodiment can also avoid the problem of CS voice service failure caused by the special scenario in which the user migrates to the new SGSN.
  • FIG. 5 shows a second embodiment, which differs from the first embodiment only in that: (1) In step 11, the first SGSN to be migrated is sent to the SGSN context response message of the new second SGSN.
  • the RAI information that is, the RAI information of the MS provided by the first SGSN before the migration, so the RAI information is not carried in the SGSN context response message of step 11, and the location update request sent by the new second SGSN to the MSC in step 14a
  • the old LAI is not carried in the message;
  • the MSC/VLR that receives the location update request message is selected according to the VLR number, thereby ensuring that the MSC selected by the SGSN is the same MSC as the MS registered. It should be noted that, because the SGSN context response message in step 11 does not carry the current RAI information, the location update request message sent by the second SGSN to the MSC cannot carry the old LAI. In some special networking scenarios, such as some abnormal scenarios of the MSC pool networking of the Gs interface (such as Gs interface failure), the MSC selected by the new second SGSN may not be the same MSC as the MSC registered by the MS, due to the location update request.
  • the old LAI is not carried in the message, so that the selected MSC fails to send the cancel location message by the HLR, and the selected MSC still retains the context of the MS, and the new MSC does not send the location update request message to the HLR, so This will cause the MS to fail as the CS voice service of the called party.
  • the second embodiment can solve the problem that the joint registration user cannot maintain the joint registration status when the migration is performed, and the paging failure of the Gs interface is ensured to ensure that the CS main call service of the migrated MS is smoother. The delay is reduced, thereby improving the user's feeling of CS business.
  • the SGSN 60 includes a first transmitting unit 61, a first receiving unit 62, and an initiating unit 63.
  • the first sending unit 61 is configured to send an SGSN Context Request message to the first SGSN after receiving the periodic RAU request message initiated by the jointly registered MS, where the MS migrates from the first SGSN to the second SGSN.
  • the first receiving unit 62 is configured to receive an interface message (for example, an SGSN context response message) between the SGSNs from the first SGSN, where the interface message between the SGSNs includes a joint attachment identifier and MSC identifier information.
  • the initiating unit 63 is configured to initiate a location update to the MSC according to the MSC identity information.
  • the MSC identification information is the RAI information of the MS provided by the first SGSN before the migration, or the VLR number of the MSC registered by the MS provided by the first SGSN before the migration.
  • the initiating unit 63 is specifically configured to: when the MSC identity information is the RAI information of the MS provided by the first SGSN before the migration, find the corresponding MSC according to the LAI mapped by the RAI information, and send the corresponding MSC to the MSC. A location update request message is sent. Further, the initiating unit 63 is further configured to receive a location update accept message from the MSC.
  • the initiating unit 63 is specifically configured to: when the MSC identity information is a VLR number of the MSC that is registered by the MS provided by the first SGGN before the migration, send a location update request message to the MSC according to the VLR number, and then send the location update request message to the MSC. Receive location update accept message.
  • the embodiment of the invention can solve the problem that the joint registration cannot be maintained in the SGSN pool, thereby ensuring The CS voice service of the migrated MS is smoother, which improves the user's CS voice service experience.
  • the joint registration MS of the SGSN pool migrates to the new SGSN, or the Iu/Gb interface of the SGSN jointly registered by the MS fails, so that the user initiates the periodic RAU to be routed by the BSC/RNC into the SGSN pool. In other scenarios on the normal SGSN.
  • the SGSN 70 includes a second receiving unit 71 and a second transmitting unit 72.
  • the second receiving unit 71 is configured to receive an SGSN Context Request message of the MS that is sent by the second SGSN, where the MS performs joint registration in the first SGSN.
  • the second sending unit 72 is configured to send an SGSN context response message to the second SGSN in response to the SGSN Context Request message, where the SGSN Context Response message includes a Joint Attachment Identity and MSC Identity Information.
  • the MSC identification information is the RAI information of the MS provided by the first SGSN before the migration, or the VLR number of the MSC registered by the MS provided by the first SGSN before the migration.
  • the embodiment of the present invention can solve the problem that the SGSN pool cannot maintain the joint registration, thereby ensuring that the CS voice service of the migrated MS is smoother, thereby improving the feeling of the user's CS voice service.
  • the joint registration MS of the SGSN pool migrates to the new SGSN, or the Iu/Gb interface of the SGSN jointly registered by the MS fails, so that the user initiates the periodic RAU to be routed by the BSC/RNC into the SGSN pool. In other scenarios on the normal SGSN.
  • the MSC 80 includes a third receiving unit 81 and a third transmitting unit 82.
  • the third receiving unit 81 is configured to receive a location update request message sent by the second SGSN.
  • the third sending unit 82 is configured to send a location update accept message to the second SGSN in response to the location update request message.
  • the MSC 80 may further include a determining unit 83, configured to determine whether to initiate an Update Location process to the HLR according to the information carried in the location update request message.
  • the determining unit 83 may compare the LAI with its own LAI according to the LAI mapped by the MS provided by the first SGSN in the location update request message and mapped by the pre-migration RAI information. If they are the same, it is determined that the Update Location process is not initiated to the HLR; if not, it is determined to initiate an Update Location procedure to the HLR, so that the HLR records the information of the MSC.
  • the embodiment of the present invention can solve the problem that the SGSN pool cannot maintain the joint registration, thereby ensuring that the CS voice service of the migrated MS is smoother, thereby improving the user's feeling of the CS voice service.
  • the joint registration MS of the SGSN pool is migrated to the new SGSN.
  • the Iu/Gb interface of the SGSN jointly registered by the MS is faulty, so that the user initiates the periodic RAU to be routed by the BSC/RNC to the scenario on other normal SGSNs in the SGSN pool.
  • the SGSN 60 corresponds to the new second SGSN and implements the method as shown in FIG.
  • the SGSN 70 corresponds to the first SGSN to be migrated, and implements the method shown in FIG. 2.
  • the MSC 80 corresponds to the above MSC, and implements the method shown in FIG.
  • FIG. 9 illustrates a system for registration in accordance with an embodiment of the present invention.
  • the system 90 includes an SGSN 60, an SGSN 70. Further, system 90 can also include MSC 80.
  • the working mode of the system 90 is described with reference to the embodiments shown in FIG. 1 to FIG. 8 , and details are not described herein.
  • the system 90 enables the new SGSN to initiate a location update to the MSC during the migration process, so that the MS that was originally in the joint registration state continues to maintain the joint registration, thereby reducing the impact on the voice service of the MS in the state of the joint registration.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be 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 unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place. Or it can be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile 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. .

Landscapes

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

Abstract

Un mode de réalisation de la présente invention concerne un procédé d'enregistrement, SGSN, MSC, et un système d'enregistrement. Le procédé d'enregistrement comprend : après avoir reçu un message de demande de mise à jour de zone de routage (RAU) périodique initié par une station mobile (MS) enregistrée conjointement, un second nœud de support GPRS de desserte (SGSN) transmet un message de demande de contexte SGSN à un premier SGSN, et le MS est migré du premier SGSN au second SGSN ; le second SGSN reçoit du premier SGSN un message d'interface entre les SGSN, et le message d'interface entre les SGSN contient un identificateur de pièces jointes combinées et un identificateur de centre de commutation mobile (MSC) ; le second SGSN lance une mise à jour de position pour le MSC en fonction de l'identificateur de MSC. Le mode de réalisation de la présente invention peut résoudre le problème d'impossibilité de maintenir le co-enregistrement d'un ensemble de SGSN.
PCT/CN2012/077819 2012-06-29 2012-06-29 Procédé d'enregistrement, sgsn, msc, et système d'enregistrement WO2014000240A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2012800005254A CN102870442A (zh) 2012-06-29 2012-06-29 注册的方法、sgsn、msc和注册的系统
PCT/CN2012/077819 WO2014000240A1 (fr) 2012-06-29 2012-06-29 Procédé d'enregistrement, sgsn, msc, et système d'enregistrement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/077819 WO2014000240A1 (fr) 2012-06-29 2012-06-29 Procédé d'enregistrement, sgsn, msc, et système d'enregistrement

Publications (1)

Publication Number Publication Date
WO2014000240A1 true WO2014000240A1 (fr) 2014-01-03

Family

ID=47447777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/077819 WO2014000240A1 (fr) 2012-06-29 2012-06-29 Procédé d'enregistrement, sgsn, msc, et système d'enregistrement

Country Status (2)

Country Link
CN (1) CN102870442A (fr)
WO (1) WO2014000240A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101039523A (zh) * 2007-03-30 2007-09-19 华为技术有限公司 联合用户迁移方法及通讯系统以及服务gprs支持节点
US20110170517A1 (en) * 2010-01-11 2011-07-14 Research In Motion Limited System and method for enabling session context continuity of local service availability in local cellular coverage
CN102158843A (zh) * 2011-02-10 2011-08-17 徐成琦 多制式移动通讯网络一体化运营方法系统及装置
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101039523A (zh) * 2007-03-30 2007-09-19 华为技术有限公司 联合用户迁移方法及通讯系统以及服务gprs支持节点
US20110170517A1 (en) * 2010-01-11 2011-07-14 Research In Motion Limited System and method for enabling session context continuity of local service availability in local cellular coverage
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
CN102158843A (zh) * 2011-02-10 2011-08-17 徐成琦 多制式移动通讯网络一体化运营方法系统及装置

Also Published As

Publication number Publication date
CN102870442A (zh) 2013-01-09

Similar Documents

Publication Publication Date Title
CN108632915B (zh) 一种终端在4g和5g网络间移动的方法、装置和设备
JP6420337B2 (ja) ネットワーク選択方法およびコアネットワーク装置
CN113329462B (zh) 用于双活跃连接切换的方法和设备
US8532046B2 (en) Method, system, and device for network handoff
KR102394891B1 (ko) 무선 통신 방법 및 장치
US8688126B2 (en) Method for falling back to 2G/3G network, relevant device and communication system
CN102714615B (zh) 节点故障处理方法、系统及相关设备
KR102094499B1 (ko) 무선 통신 시스템에서 로컬 영역 패킷 데이터 네트워크 연결을 관리하는 방법 및 장치
WO2008128452A1 (fr) Procédé, système et nœud cn pour transfert de charge dans la zone commune
JP2010515337A (ja) 音声通話の転送方法
KR101659986B1 (ko) 메시지 송신 방법 및 범용 무선 패킷 서비스 지원 노드
WO2014067098A1 (fr) Procédé, dispositif et système de communication basés sur une réserve d'entités de gestion de mobilité (réserve mme)
WO2012055093A1 (fr) Procédé et dispositif de traitement d'appel dans une réserve de centres de commutation de communications mobiles
CN112911658B (zh) 一种通信方法及装置
EP2850912B1 (fr) Distribution efficace de messages de signalisation dans une passerelle d'accès de mobilité ou un dispositif d'ancrage de mobilité locale
CN102378208A (zh) 一种vlr故障的处理方法及系统
EP2761969B1 (fr) Restauration de mag pmipv6
US9532277B2 (en) Method and apparatus for determining source SGSN
US11284239B2 (en) Central node management of UE context
WO2008151554A1 (fr) Procédé, système et appareil pour déterminer la route dans un réseau à accès multiple par répartition en code
WO2014000242A1 (fr) Procédé d'enregistrement, sgsn et équipement utilisateur
WO2012103835A2 (fr) Procédé, dispositif et système de connexion d'appels
WO2011085636A1 (fr) Cœur de réseau à accès multiple par répartition en code à large bande, procédé de transfert basé sur le cœur de réseau à accès multiple par répartition en code à large bande
US11109345B2 (en) Paging for downlink data transfer in connectionless mode in a mobile system
WO2014000240A1 (fr) Procédé d'enregistrement, sgsn, msc, et système d'enregistrement

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201280000525.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12879707

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12879707

Country of ref document: EP

Kind code of ref document: A1