WO2011150846A1 - Procédé, dispositif et système de synchronisation de données - Google Patents

Procédé, dispositif et système de synchronisation de données Download PDF

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Publication number
WO2011150846A1
WO2011150846A1 PCT/CN2011/075067 CN2011075067W WO2011150846A1 WO 2011150846 A1 WO2011150846 A1 WO 2011150846A1 CN 2011075067 W CN2011075067 W CN 2011075067W WO 2011150846 A1 WO2011150846 A1 WO 2011150846A1
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WIPO (PCT)
Prior art keywords
data
tas
user
core network
address
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PCT/CN2011/075067
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English (en)
Chinese (zh)
Inventor
卜基
Original Assignee
华为技术有限公司
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Publication of WO2011150846A1 publication Critical patent/WO2011150846A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1083—In-session procedures
    • H04L65/1095—Inter-network session transfer or sharing

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a data synchronization method, apparatus, and system. Background technique
  • IMS IP Multimedia Subsystem, IP Multimedia Subsystem
  • IP Multimedia Subsystem IP Multimedia Subsystem
  • SIP call control mechanism to create, manage and terminate various types of multimedia services, which can meet the needs of current end-users. The need for more diverse multimedia services.
  • the TAS Telephone Application Server
  • the TAS is a server for providing service services in the IMS, and provides service services for users according to the service data signed by the user.
  • the user In order to enable the user of the CS domain network to enjoy the original service experience of the mobile network after accessing the IMS, the user needs to synchronize the service data signed by the user in the mobile network to the TAS when the user registers with the IMS.
  • mAGCF cannot determine if the latest service data has been stored on the TAS, so even if the latest service data is already stored on the TAS, the mAGCF will still synchronize the data with the TAS. In this way, the frequency of data synchronization is high and the system resources are consumed too much.
  • Embodiments of the present invention provide a data synchronization method, apparatus, and system for solving the problem of data synchronization being too frequent and wasting network resources.
  • a data synchronization method including:
  • the IMS core network Receiving, by the IMS core network, a notification message from the TAS of the TAS, where the notification message includes an indication of whether data synchronization information needs to be sent, and an address of the T A S; storing an address of the TAS;
  • the subscription data of the user is sent to the TAS according to the indication and the address of the TAS.
  • a mobile access gateway control function including:
  • a registration message receiving unit configured to receive a registration message of a user of the CS domain network
  • a data acquisition unit configured to acquire the subscription data of the user from the HLR when the registration message receiving unit receives the registration message of the user
  • a registration message sending unit configured to send the registration message of the user to the IMS core network, so that the IMS core network sends the registration message of the user to the TAS selected by the IMS core network;
  • a notification message receiving unit configured to receive a notification message of the TAS from the TAS sent by the IMS core network, where the notification message includes an indication of whether data synchronization information needs to be sent, and an address of the TAS;
  • An address storage unit configured to store an address of the TAS in the notification message received by the notification message receiving unit
  • a data sending unit configured to send the subscription data acquired by the data acquiring unit to the TAS according to the indication and an address of the TAS stored by the address storage unit.
  • a telephone application server comprising:
  • a registration message receiving unit configured to receive, by using an IMS core network, a registration message of a user of the CS domain network sent by the mAGCF;
  • a notification message sending unit configured to send, by using the IMS core network, a notification message including an address of the TAS to the mAGCF;
  • a data receiving unit configured to receive subscription data of the user sent by the mAGCF
  • a data storage unit configured to store subscription data received by the data receiving unit
  • a data synchronization system including mAGCF and IMS core network and TAS;
  • the mAGCF is configured to receive a registration message of a user of the CS domain network, acquire the subscription data of the user from the HLR, send the registration message of the user to the IMS core network, and receive the content sent by the IMS core network. Whether an indication of data synchronization information needs to be sent and a notification message of the address of the TAS; storing an address of the TAS in the notification message; sending the subscription data of the user to the TAS according to the indication and the address of the TAS;
  • the IMS core network is configured to receive a registration message sent by the mAGCF, and send the registration message to the TAS; receive a notification message sent by the TAS, and send the notification message to the mAGCF;
  • the TAS is configured to receive a registration message sent by the IMS core network, send an indication to the IMS core network, including an indication of whether the data synchronization information needs to be sent, and a notification message of the address of the TAS, and receive and store the user sent by the mAGCF. Signing data.
  • the data synchronization method, device, and system provided by the embodiment of the present invention, after receiving the registration message of the user of the CS domain network by the mAGCF, sending the registration message of the user to the TAS through the IMS core network, and the TAS passes the IMS core according to the registration message.
  • the network sends an indication to the mAGCF that the data synchronization information needs to be sent, and a notification message of the address of the TAS, and the mAGCF sends the subscription data of the user to the TAS according to the indication and the address of the TAS.
  • the mAGCF can determine that the latest service data is stored on the TAS, and does not send the subscription data to the TAS, thereby reducing the frequency of data synchronization and reducing system resources. Consumption.
  • FIG. 1 is a schematic flowchart of a data synchronization method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another data synchronization method according to an embodiment of the present invention
  • FIG. 3 is still another data according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a data synchronization method according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a mobile access gateway control function according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a telephone application server according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a data synchronization system according to an embodiment of the present invention. detailed description
  • an embodiment of the present invention provides a data synchronization method, as shown in FIG. 1, including:
  • the mAGCF mobile access gateway control function receives a registration message of a user of a CS (Circuit Switching) domain network
  • the mAGCF obtains the subscription data of the user from an HLR (Home Location Register).
  • HLR Home Location Register
  • the subscription data of the user refers to service data that the user subscribes to in the mobile network.
  • the mAGCF sends the registration message of the user to the TAS selected by the IMS core network through the IMS core network.
  • the mAGCF can acquire the data feature value according to the acquired subscription data of the user.
  • Sending a registration message containing the data feature value to the IMS core network (IMS-Core), the Call Session Control Function (CSC) in the IMS core network selects a TAS as the user according to the trigger rule of the user in the HSS.
  • CSC Call Session Control Function
  • the mAGCF receives a notification message of the TAS from the TAS sent by the IMS core network, where the notification message includes an indication of whether data synchronization information needs to be sent, and the
  • the TAS can determine whether the user has the latest subscription data according to the data feature value in the registration message in step 103. If the TAS has the latest subscription data of the user, the TAS sends a notification message including the TAS address to the IMS core network, where the notification message includes an indication that the data synchronization information does not need to be sent, and the IMS core network sends the notification message to the mAGCF. If the TAS does not have the latest subscription data of the user, the TAS sends an indication to the IMS core network that the data synchronization information needs to be sent, and the notification message of the TAS address, the IMS core network. The notification message is sent to the mAGCF.
  • mAGCF stores the address of the TAS
  • the mAGCF stores the TAS address corresponding in the notification message in the TAS address list.
  • the mAGCF sends the subscription data of the user to the TAS according to the indication and the address of the TAS.
  • the mAGCF learns that the synchronization information needs to be sent, and sends the latest subscription data of the user to the TAS according to the TAS address through the interface.
  • the mAGCF does not send the subscription data of the user to the TAS when it is determined that the notification message includes an indication that the data synchronization information is not required to be transmitted.
  • the mAGCF may also obtain the latest subscription data of the user from the HLR when receiving the data update notification of the user sent by the HLR, and directly send the latest subscription data of the user to the TAS according to the stored address of the TAS corresponding to the user. .
  • the data synchronization method provided by the embodiment after receiving the registration message of the user of the CS domain network by the mAGCF, sends the registration message of the user to the TAS through the IMS core network, and receives whether the data sent by the TAS according to the registration message needs to be sent.
  • the indication of the synchronization information, and the notification message of the address of the TAS transmits the subscription data of the user to the TAS according to the indication and the address of the TAS. Therefore, the mAGCF can determine that the latest service data is stored on the TAS when the notification message of the TAS is not included, and does not send the subscription data to the TAS, thereby reducing the frequency of data synchronization and reducing system resources. Consumption.
  • the data synchronization method in this embodiment includes:
  • the mAGCF receives a registration message sent by the user through the user equipment.
  • a user when a user enters a new mAGCF jurisdiction, it initiates registration of the IMS, that is, sends a registration message to the mAGCF.
  • the mAGCF obtains the subscription data of the user from the HLR;
  • the mAGCF obtains the data feature value according to the acquired subscription data of the user, and sends a registration message including the data feature value to the IMS core network;
  • the mAGCF can process the subscription data of the user by using the MD5 (Me ss age-D i ge st A l go ri thm 5 , information-digest algorithm 5) algorithm to obtain a string of characters. That is, the data feature value A.
  • the algorithm for generating the feature value is not limited to the MD5, and may be other algorithms such as a checksum, which is not limited in the embodiment of the present invention.
  • a data feature value A is added to the registration message sent to the IMS core network, and the registration message is sent to the IMS core network.
  • the registration message may be a Regist message of a SIP (Ses si on Initiati on Pro toco l).
  • the IMS core network selects the TAS according to the triggering rule of the user in the HSS to provide the service to the user, and sends the registration message to the TAS selected by the IMS.
  • the TAS determines whether the latest subscription data of the user exists.
  • the TAS obtains the data feature value A in the registration message.
  • the TAS determines whether there is subscription data of the user. If the subscription data of the user does not exist, it is determined that the latest subscription data of the user is not stored in the TAS. If the TAS has the subscription data of the user, it is determined whether the stored data feature value of the user is the data feature value A in the registration message. If the TAS determines that the stored data feature value of the user is not the data feature value A, Then, it is determined that the latest subscription data of the user is not stored in the TAS.
  • the T AS determines that the latest subscription data of the user does not exist or the stored data feature value of the user is not sent by the mAGCF to the data feature value, and sends an indication including the TAS address and the data synchronization information to be sent to the IMS core network. Notification message
  • the TAS when determining that the subscriber's subscription data is not present, the TAS sends a notification message including the TAS address and an indication that the data synchronization information needs to be transmitted to the IMS core network.
  • the TAS when determining that the stored data feature value of the user is not the data feature value A, transmits a notification message including the TAS address and an indication that the data synchronization information needs to be transmitted to the IMS core network.
  • the notification message may adopt a message such as NOT I FY , I NFO , MASSAGE, etc., and the indication may be embedded in the header field and the message body of the notification message.
  • the IMS core network sends the notification message to the mAGCF.
  • the mAGCF After receiving the notification message, the mAGCF stores an address of the TAS in the notification message. And, when it is determined that the notification message includes an indication that the data synchronization information needs to be sent, the subscription data and the data feature value of the user are sent to the TAS according to the address of the TAS.
  • the mAGCF After receiving the notification message, the mAGCF obtains the address of the TAS in the notification message, and stores the address of the TAS and the identifier of the user in the TAS address list. And, when determining that the notification message includes an indication that the data synchronization information needs to be sent, the mAGCF The address of the TAS directly sends the subscription data and data feature value of the user to the TAS through the 13 interface.
  • the data synchronization method in this embodiment includes:
  • the mAGCF receives a registration message of the user.
  • a user when a user enters a new mAGCF jurisdiction, it initiates registration of the IMS, that is, sends a registration message to the mAGCF.
  • the mAGCF obtains the subscription data of the user from the HLR.
  • the mAGCF obtains the data feature value according to the acquired subscription data of the user. Sending a registration message containing the data feature value to the IMS core network;
  • the mAGCF can process the user's subscription data through the mD5 algorithm to obtain a string of data, that is, the data feature value A.
  • the data feature value A is added to the registration message sent to the IMS core network, and the registration message is sent to the IMS core network.
  • the registration message may be a Register message of a SIP (Session Initiation Protocol).
  • the IMS core network selects the TAS to provide the user with the TAS according to the triggering rule of the HSS, and sends the registration message to the TAS selected by the user.
  • the TAS determines whether the user has the latest subscription data.
  • the TAS obtains the data feature value A in the registration message.
  • the TAS determines whether there is subscription data of the user. If the subscription data of the user does not exist, it is determined that the latest subscription data of the user is not stored in the TAS. If the TAS has the subscription data of the user, it is determined whether the stored data feature value of the user is the data feature value A in the registration message, and if the TAS determines that the stored data feature value of the user is not the data feature value A, Then, it is determined that the latest subscription data of the user is not stored in the TAS.
  • the TAS determines that the latest subscription data of the user is stored, and sends a notification message that includes the TAS address to the IMS core network.
  • the TAS determines that the stored data feature value of the user is the data feature value A, that is, the subscription data of the user in the TAS is the same as the subscription data of the user in the mAGCF, and sends a notification message including the TAS address to the IMS core network.
  • the notification message including the TAS address and an indication that the data synchronization information does not need to be sent may also be sent to the IMS core network.
  • the notification message may use a message such as NOTIFY, INFO, MASSAGE, etc., and the indication may be embedded In the header field of the notification message, in the message body.
  • the IMS core network sends the notification message to the mAGCF.
  • the mAGCF After receiving the notification message, the mAGCF stores an address of the TAS in the notification message. And, when the notification message includes an indication that the data synchronization information does not need to be transmitted, the subscription data and the data feature value of the user are not transmitted to the TAS.
  • the mAGCF After receiving the notification message, the mAGCF obtains the address of the TAS in the notification message, and stores the address of the TAS and the identifier of the user in the TAS address list. And, when it is determined that the notification message includes an indication that the data synchronization information does not need to be sent, or the notification message includes an indication that the data synchronization information does not need to be sent, the subscription data and the data feature value of the user are not sent to the TAS.
  • this embodiment provides another data synchronization method. Different from the above embodiment, the foregoing embodiment is to determine whether to send synchronization information when the user registers, and the embodiment is directed to the foregoing. After the last step of the embodiment is performed, the user subscription data is updated, which specifically includes:
  • the subscription data of the user is updated in the HLR, and the HLR sends a data update notification of the user to the mAGCF.
  • the mAGCF After receiving the data update notification, the mAGCF obtains the updated subscription data of the user from the HLR.
  • the mAGCF obtains a new data feature value according to the updated subscription data of the user, and sends the updated information to the TAS according to the address of the TAS corresponding to the user, that is, the address of the TAS stored in step 208 or 308.
  • the TAS stores the updated subscriber's subscription data and new data signature values after receiving it.
  • the TAS does not need to send an indication of whether synchronization information is needed to the mAGCF, and the mAGCF actively sends the updated subscription data and the feature value to the TAS, and the TAS stores and returns an HTTP response. .
  • the data synchronization method provided by the foregoing specific embodiment, after receiving the registration message of the user of the CS domain network by the mAGCF, sending the registration message of the user to the TAS through the IMS core network, and the TAS sends the message to the mAGCF through the IMS core network according to the registration message.
  • mAGCF is able to When the TAS notification message includes an indication that the data synchronization information is not required to be sent, it is determined that the latest service data is stored on the TAS, and the subscription data is not sent to the TAS, thereby reducing the frequency of data synchronization and reducing system resource consumption.
  • the embodiment of the present invention further provides a mobile access gateway control function, as shown in FIG. 5, including:
  • a registration message receiving unit 501 configured to receive a registration message of a user of the CS domain network, and a data acquisition unit 502, configured to acquire the subscription data of the user from the HLR when the registration message receiving unit 501 receives the registration message of the user;
  • a registration message sending unit 503 configured to send the registration message of the user to the IMS core network, so that the IMS core network sends the registration message of the user to the TAS selected by the IMS core network;
  • a notification message receiving unit 504 configured to receive a notification message of the TAS from the TAS sent by the IMS core network, where the notification message includes an indication of whether data synchronization information needs to be sent, and an address of the TAS;
  • the address storage unit 505 is configured to store an address of the TAS in the notification message received by the notification message receiving unit 504;
  • the data sending unit 506 is configured to send, according to the indication and the address of the TAS stored by the address storage unit 505, the subscription data acquired by the data acquiring unit 502 to the TAS.
  • the mobile access gateway control function further includes:
  • An eigenvalue obtaining unit configured to acquire a data feature value according to the subscription data of the user;
  • the registration message sending unit 503 is specifically configured to send, to the IMS core network, a registration message that includes the data feature value, to facilitate the TAS Sending a notification message according to the data feature value in the registration message sent by the IMS core network;
  • the data sending unit 506 is specifically configured to: when determining that the notification message includes the indication, send the subscription data of the user and the data feature value to the TAS according to the address of the TAS.
  • the mobile access gateway control function further includes:
  • An update notification receiving unit configured to receive a data update notification of the user that is sent by the HLR, where the data acquisition unit 502 is further configured to: when the update notification receiving unit receives the data update notification of the user sent by the HLR, The HLR obtains the updated subscription data of the user;
  • the data sending unit 506 is specifically configured to send, according to the address of the TAS stored by the address storage unit 505, the updated subscription data of the user to the TAS.
  • the mobile access gateway control function provided by the embodiment, after receiving the registration message of the user of the CS domain network, sends the registration message of the user to the TAS through the IMS core network, and receives whether the content sent by the TAS according to the registration message needs to be included.
  • the indication of the data synchronization information is sent, and the notification message of the address of the TAS, and the user's subscription data is sent to the TAS according to the indication and the address of the TAS. Therefore, the mAGCF can determine that the latest service data is stored on the TAS when the TAS notification message does not include the indication that the data synchronization information needs to be sent, and does not send the subscription data to the TAS, thereby reducing the frequency of data synchronization and reducing system resources. Consumption.
  • the embodiment of the present invention further provides a phone application server, as shown in FIG. 6, including:
  • the registration message receiving unit 6 01 is configured to receive, by using the IMS core network, a registration message of a user of the CS domain network sent by the mAGCF;
  • the notification message sending unit 620 is configured to send, by using the IMS core network, an indication that the data synchronization information needs to be sent, and a notification message of the address of the TAS, to the mAGCF.
  • the data receiving unit 603 is configured to receive the information sent by the mAGCF.
  • the data storage unit 604 is configured to store the subscription data received by the data receiving unit 603.
  • the notification message sending unit 602 includes:
  • a data storage judging subunit configured to determine whether to store the subscription data of the user
  • the feature value judging subunit configured to determine, when the data storage judging unit determines that the subscription data of the user is stored, the stored user Whether the data feature value of the subscription data is the same as the data feature value in the registration message
  • a notification message sending subunit configured to determine, in the data storage determining subunit, that the subscription data of the user is not stored, or the feature value determining subunit determines the stored data feature value of the user and the registration message When the data feature values in the data are different, the notification message including the address of the TAS and the indication that the data synchronization information needs to be sent is sent to the IMS core network; or, the feature value determining subunit determines the stored data feature value of the user and When the data feature values in the registration message are the same, the notification message including the address of the TAS is sent to the IMS core network.
  • the data receiving unit 603 is specifically configured to receive subscription data and data feature values of the user that are sent by the mAGCF;
  • the data storage unit 604 is specifically configured to store the subscription data and the data feature value received by the data receiving unit 603.
  • the telephony application server provided in this embodiment receives the IMS core network and sends the TAS through the TAS.
  • the registration message of the user of the CS domain network sends an indication to the mAGCF through the IMS core network whether the data synchronization information needs to be sent, and a notification message of the address of the TAS, so that the mAGCF according to the indication and the address of the TAS to the TAS Send the user's subscription data. Therefore, the mAGCF can determine that the latest service data is stored on the TAS when the TAS notification message does not include the indication that the data synchronization information needs to be sent, and does not send the subscription data to the TAS, thereby reducing the frequency of data synchronization and reducing system resources. Consumption.
  • the embodiment of the present invention further provides a data synchronization system, as shown in FIG. 7, including a mAGCF 071 and an IMS core network 702 and a TAS 703;
  • the mAGCF 7 01 is configured to receive Acquiring a registration message of the user of the CS domain network; acquiring the subscription data of the user from the HLR; transmitting the registration message of the user to the IMS core network 702; receiving the data synchronization information sent by the IMS core network 702 And a notification message of the address of the TAS; storing an address of the TAS 703 in the notification message; sending the user's subscription to the TAS 703 according to the indication and the address of the TAS 703 Data
  • the IMS core network 702 is configured to receive a registration message sent by the mAGCF 701, and send the registration message to the TAS 703; receive a notification message sent by the TAS 703, and send the message to the mAGCF 701. Notification message
  • the TAS 703 is configured to receive a registration message sent by the IMS core network 702; send an indication to the IMS core network 702, including an indication of whether data synchronization information needs to be sent, and a notification message of an address of the TAS 703; receive and store the mAGCF The subscription data of the user sent by 701.
  • the mAGCF 701 is specifically configured to receive a registration message of a user of the CS domain network, acquire subscription data of the user from the HLR, acquire a data feature value according to the subscription data of the user, and send the data feature value to the IMS core network 702.
  • Sending a registration message of the user, the registration message includes the data feature value; receiving a notification message sent by the IMS core network 702; storing an address of the TAS 703 in the notification message; determining the notification When the message includes an indication that the data synchronization information needs to be sent, according to the address of the TAS 703 to the TAS 703, sending the subscription data of the user;
  • the TAS 703 is specifically configured to receive a registration message sent by the IMS core network 702, where the registration message includes a data feature value; determining that the subscription data of the user is not stored, or storing the data feature value of the user and When the data feature values in the registration message are different, the IMS core network 702 sends a notification message including the address of the TAS 703 and the indication that the data synchronization information needs to be sent, and receives and stores the subscription data of the user sent by the mAGCF 701. And transmitting a notification message including the address of the TAS 703 to the IMS core network 702 when it is determined that the stored data feature value of the user is the same as the data feature value in the registration message.
  • the data synchronization system provided by the embodiment of the present invention sends the registration message of the user to the TAS through the IMS core network through the IMS core network after receiving the registration message of the user of the CS domain network, and the TAS sends the registration message to the mAGCF through the IMS core network according to the registration message.
  • the mAGCF can determine that the latest service data is stored on the TAS when the TAS notification message does not include the indication that the data synchronization information needs to be sent, and does not send the subscription data to the TAS, thereby reducing the frequency of data synchronization and reducing system resources. Consumption.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random memory "3 ⁇ 4" (Serial Acce s s

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Abstract

Les modes de réalisation de la présente invention concernent un procédé, un dispositif et un système de synchronisation de données qui se rapportent au domaine des communications. Afin de synchroniser les données de service souscrites dans un réseau mobile par un utilisateur d'un réseau de domaine de commutation de circuit (CS) dans un serveur d'application téléphonique (TAS) dans les délais, une solution technique est proposée dans la présente invention comme suit : un message d'enregistrement de l'utilisateur du réseau de domaine CS est reçu par une fonction de contrôle d'accès de passerelle mobile (mAGCF) ; les données d'abonnement de l'utilisateur sont acquises auprès d'un registre des abonnés locaux (HLR) ; le message d'enregistrement de l'utilisateur est envoyé à travers un réseau de base IMS (sous-système multimédia IP) au TAS choisi par le réseau de base IMS ; un message de notification du TAS qui provient du TAS et qui est envoyé par le réseau de base IMS est reçu, le message de notification comprenant une indication précisant si des informations de synchronisation de données doivent être envoyées, et l'adresse du TAS ; l'adresse du TAS est enregistrée ; et les données d'abonnement de l'utilisateur sont envoyées au TAS selon l'indication et l'adresse du TAS.
PCT/CN2011/075067 2010-08-19 2011-05-31 Procédé, dispositif et système de synchronisation de données WO2011150846A1 (fr)

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CN201010257310.3A CN101924763B (zh) 2010-08-19 2010-08-19 数据同步方法、装置及系统
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