WO2013000398A1 - Procédé et système de sélection de domaine pour utilisateurs appelés, serveur d'abonnés nominaux (hss) dans le système, programme d'ordinateur et support de stockage - Google Patents

Procédé et système de sélection de domaine pour utilisateurs appelés, serveur d'abonnés nominaux (hss) dans le système, programme d'ordinateur et support de stockage Download PDF

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Publication number
WO2013000398A1
WO2013000398A1 PCT/CN2012/077533 CN2012077533W WO2013000398A1 WO 2013000398 A1 WO2013000398 A1 WO 2013000398A1 CN 2012077533 W CN2012077533 W CN 2012077533W WO 2013000398 A1 WO2013000398 A1 WO 2013000398A1
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WO
WIPO (PCT)
Prior art keywords
domain
hss
called user
call
registration status
Prior art date
Application number
PCT/CN2012/077533
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English (en)
Chinese (zh)
Inventor
刘景磊
姜怡
梁聚宏
Original Assignee
中国移动通信集团公司
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Application filed by 中国移动通信集团公司 filed Critical 中国移动通信集团公司
Publication of WO2013000398A1 publication Critical patent/WO2013000398A1/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
    • H04L65/1069—Session establishment or de-establishment
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/005—Multiple registrations, e.g. multihoming

Definitions

  • the present application relates to the field of mobile communications, and in particular, to a method and system for selecting a domain of a called user, and an HSS in the system, and a computer program and a storage medium.
  • Voice Call Continuity refers to GSM/UMTS circuit switching (CS ⁇ or) and IP Multimedia Subsystem (IMS domain) in the second/third generation (2G/3G) mobile communication network. The continuity between voice calls.
  • VCC Voice Call Control
  • the VCC scheme affects the registration, originating call, terminating call, network domain selection, and supplementary service and billing.
  • the VCC domain selection solves the problem of voice cross-domain, and it cannot solve the problem of the called user selecting the network. .
  • This problem is usually solved on the Service Centralization and Continuity Application Server in the IMS domain. That is to say, according to the method, all the other domain services are transferred to the IMS domain, and the unified business logic is triggered in the IMS domain.
  • the user's service data is stored on the HSS and the associated AS.
  • the session will be triggered by the E-MSC to the S-CSCF through the interface to trigger the service AS.
  • the common number is a system that shares the same set of code numbers when the operator has multiple core networks.
  • the same code number can reside in multiple core networks simultaneously or separately.
  • the user signs up both the CS domain and the CM-IMS domain and uses the same number in both domains.
  • domain selection For users with a common number, there is a problem with domain selection. For example, for users with a common number in the CS domain and the IMS domain, the problem of the called user's landing in the CS domain and the IMS domain needs to be solved.
  • the CM-IMS-based integrated one-number service refers to the user setting a mobile phone (GSM mobile phone or TD mobile phone) number or IMS terminal number (Tel URI) as the main number of the service by applying to China Mobile, and It is possible to set a binding number when binding to the mobile phone number or IMS terminal number in the same one or three other provinces (or municipalities), and the binding number when the call is made, and the bound number is used as the binding number.
  • the associated number of the service is used to display the incoming call as the primary number (optional) when the call is made, and the CS domain and the IMS domain convergence service of the terminal are bound to the same or the same.
  • the first line service refers to the user using the client to extend the original G network service.
  • the user inserts the SIM card into the mobile terminal with the client using the USB card slot.
  • the user logs in to the IMS network using the customized SIP terminal, the user will delay.
  • the main business functions of the contract in the GSM network are enjoyed, and the USB telephony service server completes the service implementation of the service through the interaction function between the circuit domain and the IMS domain.
  • VCC mainly solves the problem of user voice continuity
  • the session is routed to another domain through the VCC application.
  • this technical solution cannot solve the problem of the selection of the called network, and if the problem is implemented by the SCC AS, the process is complicated; and, the one-way service and the first-line service only realize a total of A part of the number, which cannot completely solve the technical problem of the called number selection network of the common number user.
  • the IMS domain I-CSCF uses the LiIR/LIA message of the Diameter protocol to interact with the HSS, and obtains the S-CSCF name of the user or the S-CSCF capability selected by the user S-CSCF during the SIP call establishment process, that is, In the current IMS domain, the I-CSCF Call Session Control Function (CSCF, Call Session Control Function) obtains information about the S-CSCF of the user from the HSS through the LIR/LIA message.
  • CSCF Call Session Control Function
  • the domain selection of the video service using the dual-standby common number user is different from the domain selection logic of the voice service, which requires the HSS to know whether the service used by the current user is a video service or Voice service, which is not satisfied by the current Diameter protocol LIR/LIA message, so it needs to be improved.
  • the present application is directed to the above-mentioned deficiencies in the prior art, and provides a domain selection method and system for a called user, and an HSS in the system, and a computer program and a storage medium, which transmit a message carrying a service indication and an HSS back to the HSS.
  • the present application provides a domain selection method for a called user, which mainly includes the following steps:
  • the home subscriber server HSS learns the call initiated by the calling user of the IMS domain to the called user and the type of the conference service;
  • the HSS determines a registration status of the called user in the IMS domain;
  • the HSS query home location register HLR determines the registration status of the called user in the CS domain;
  • the HSS routes the call according to the determined registration status of the called user in the IMS domain, the type of session service, and the registration status of the called user in the CS domain.
  • the HSS routes the call, and further includes:
  • the HSS query selection network policy database
  • the landing domain of the call is selected from the network selection policy database according to the registration status of the called user in the IMS domain, the type of session service, and the registration status of the called user in the CS domain.
  • the present invention provides a domain selection system for a called subscriber, comprising: a home subscriber server HSS and a home location register HLR, wherein the HSS acquires an IMS domain calling subscriber to initiate a called subscriber a call and a session service type; the HSS determines a registration status of the called user in the IMS domain; the HSS query home location register HLR determines a registration status of the called user in the CS domain; and, the HSS is determined according to the determined The user is called the registration status of the IMS domain, the type of session service, and the registration status of the called user in the CS domain, and the call is routed.
  • a home subscriber server HSS and a home location register HLR wherein the HSS acquires an IMS domain calling subscriber to initiate a called subscriber a call and a session service type; the HSS determines a registration status of the called user in the IMS domain; the HSS query home location register HLR determines a registration status of the called user in the CS domain
  • the method further includes: selecting a network policy database, wherein the HSS selects and determines a session from the network selection policy database according to the registration status of the called user in the IMS domain, the session service type, and the registration status of the called user in the CS domain. Landing domain.
  • the method further includes: a call session control function CSCF, the CSCF determines a session service type according to the received session request of the calling user, and sends an LIR message to the HSS, and determines and transfers the call according to the LIA message returned by the HSS. In the region.
  • CSCF call session control function
  • the MGCF sends a routing indication to the MGCF, and the MGCF notifies the called user to answer the call in the CS domain according to the foregoing indication.
  • the present invention provides a home subscriber server HSS, including: a determining module and a routing module, where
  • the determining module determines, when the calling user in the IMS domain initiates a call to the called user, the registration status of the called user in the IMS domain and the session service type of the calling user, and queries the home location register HLR to determine the called party.
  • User registration status in the CS domain
  • the routing module routes the call according to the registration status of the called user in the CS domain, the session service type of the calling user, and the registration status of the called user in the IMS domain.
  • the determining module further includes:
  • An information receiving unit configured to receive a LIA message with a service type indication from the CSCF, and determine a session service type of the calling user;
  • a query unit configured to send a query message to the HLR
  • the determining unit determines the registration status of the called user in the CS domain according to the acknowledgement message received from the HLR.
  • the routing module further includes:
  • the route judging unit judges the routing mode according to the determined registration state of the called user in the CS domain, the service type of the calling user, and the registration status of the called user in the IMS domain;
  • the routing indication unit sends a LIA message to the CSCF according to the determined routing manner to instruct the CSCF to route the call.
  • the present invention can query the HLR to obtain the registration status of the called user in the CS domain through the home subscriber server HSS, and obtain the registration status and/or terminal type of the called user in the IMS domain through the HSS. And, in combination with the service type of the calling user acquired by the HSS, according to the registration state and/or the terminal type in the CS/IMS domain, the call is transferred to the preset landing domain according to the network selection policy, and thus is better. It solves the technical problem of the called network of users who register the same number in multiple domains, and has very good technical effects.
  • FIG. 1 is a flow chart of an embodiment of a domain selection method of a called user of the present invention
  • FIG. 2 is a flow chart of another embodiment of a method for selecting a domain of a called user according to the present invention
  • FIG. 3 is a schematic structural diagram of a structure of an embodiment of a called user domain selection system according to the present invention
  • FIG. 4 is a schematic block diagram of an embodiment of a home subscriber server HSS according to the present invention.
  • FIG. 5 is a block diagram showing an embodiment of an HSS of a home service service of the present invention.
  • FIG. 6 is a block diagram of an embodiment of an HSS of a home subscriber service of the present invention.
  • (Embodiment 1) 1 is a flow chart of an embodiment of a domain selection method of a called user of the present invention
  • the method mainly includes the following main steps:
  • the home subscriber server HSS learns the call initiated by the calling party of the IMS domain to the called user and the type of the session service.
  • the session service type may be a voice service, a video service, a data service, or a fax service, or may be based on a later
  • the service development performs the expansion of various services.
  • the session service control function CSCF in the IMS domain receives the Invite message initiated by the calling user, and determines the calling user according to the message. The type of session service to be initiated to the called user.
  • the HSS determines a registration status of the called user in the IMS domain.
  • the HSS can determine the registration status of the called user in the IMS domain by querying the registration status information of the IMS domain terminal stored by itself.
  • the HSS query home location register HLR determines a registration status of the called user in the CS domain; wherein, in a preferred embodiment, the HSS sends a query message to the home location register HLR, for example, A MAP interface interworking with the HLR is added to the HSS, and the HSS communicates with the HSS through the MAP interface.
  • the HLR is responsive to the query message and returns an acknowledgment message to the HSS; and the acknowledgment message carries the registration status information of the called user in the CS domain, for example, the called user is registered in the CS domain, or , the called user is not registered in the CS domain;
  • the HSS determines the registration status of the called user in the CS domain according to the acknowledgement message received from the HLR.
  • the HSS routes the call according to the determined registration status of the called user in the IMS domain, the type of session service, and the registration status of the called user in the CS domain.
  • a network selection policy database is further provided, wherein one or more groups of network selection logic policies are set in the database according to the operator or the user:
  • the voice service if the user is registered in the CS domain or the IMS domain, the voice service is transferred to the CS domain; if the related service is already registered in the IMS domain, but still in the CS domain If not registered, the voice service is transferred to the IMS domain;
  • the HSS queries the network selection policy database
  • the landing domain of the call is selected from the network selection policy database according to the registration status of the called user in the IMS domain, the type of session service, and the registration status of the called user in the CS domain.
  • the specific steps of the session service type initiated by the calling party to the called user in the IMS domain include:
  • the session service control function CSCF receives the session request initiated by the calling user in the IMS domain; the CSCF generates an LIR message with the service indication bit according to the session request and sends the message to the HSS; and the HSS receives the LIR message. And determine the type of session business.
  • the session service control function CSCF in the IMS domain receives the Invite message initiated by the calling user, and sends the LIR message with the session service indication to the HSS, and determines according to the LIA message with the domain indication returned by the HSS and The call is transferred to the landing domain.
  • the I-CSCF Since in the current IMS domain, the I-CSCF obtains the information of the user's S-CSCF from the HSS through the LIR/LIA message. Therefore, in order to realize the current session service type and landing domain indication between the LIR/LIA between the HSS and the CSCF, the LIR/LIA message of the existing Diameter protocol must be extended to bring the user's service. Logo.
  • the present invention adds a service flag extension field to the LIR message of the Diameter protocol:
  • the [Session-Type] field is an extension field, and carries a service type indication, which is a value of Voice, Video, Data, Fax, or Extand, which represents that the current session type of the calling user is a voice service or a video service. , data services, fax services or others.
  • the LIA message also joins the landing field indication extension field:
  • the [Session-Result] field is an extension field, which carries the service type indication, and the values are CS, IMS, Both, and Extand, which respectively represent the CS landing domain, the IMS landing domain, or the dual domain to be redirected by the called user. Landing, and, in other cases.
  • step of the HSS routing the call further includes:
  • the selection type of the landing domain is the CS domain, the IMS domain, and the IMS/CS dual domain.
  • the CSCF transfers the call to the CS domain to further include: the CSCF sends a message with a domain indication to the media gateway control function MGCF; in response to the message, the MGCF receives the message, and Notify the called user to pick up the call in the CS domain.
  • the CSCF sends a message with a domain indication to the media gateway control function MGCF, for example, Invite (PreA, B) Formatted message, where PreA suppresses the HLR from performing domain selection logic and proceeds to the normal CS domain flow.
  • the HSS determines that the CSCF transfers the call to the IMS domain, the HSS generates a LIA message with the IMS Landing Domain Indicator bit returned to the CSCF; and, the CSCF continues normal follow-up in response to the LIA message Process.
  • the HSS determines that the CSCF transfers the call to the IMS and the CS dual domain, at this time, the CSCF receives the LIA message with the landing field indication of the IMS/CS dual domain; The LIA message, the CSCF triggers the one-way AS and realizes the same-vibration or shock-synchronous service of the first number.
  • the HSS can select according to the current selection policy according to whether the call service in the current calling user is a video service or a voice service, and the network selection policy database can be operated according to the operation.
  • the quotient or the user defines the policy for each carrier, and the policy can also be extended according to the subsequent changes.
  • the call is transferred to the preset landing domain according to the network selection policy, thereby better solving the problem.
  • the technical problem of the called network selected by users who register the same number in multiple domains has very good technical effects.
  • FIG. 2 is a flow chart of another embodiment of a domain selection method of a called user of the present invention.
  • the method further includes the step of acquiring the terminal registration type of the called user.
  • the HSS includes the following steps:
  • the home subscriber server HSS learns the call initiated by the calling party of the IMS domain to the called user and the type of the session service:
  • the session service type may be a voice service, a video service, a data service, or a fax service, or may be extended according to future service development;
  • the session service control function CSCF in the IMS domain receives the Invite message initiated by the calling user, and determines, according to the message, the session initiated by the calling user (client) to the called user. business type.
  • the HSS determines the registration status of the called user in the IMS domain, and the HSS queries its own database to determine the terminal type of the called user. Generally, the terminal type is used by the NAS signaling band when the user registers. Come up and store in the HSS.
  • the HSS query home location register HLR determines a registration status of the called user in the CS domain; wherein, in a preferred embodiment, the HSS sends a query message to the home location register HLR, for example, A MAP interface interworking with the HLR is added to the HSS. Through the foregoing interface, the HSS can query the registration status of the user stored in the HSS.
  • the HLR is responsive to the query message and returns an acknowledgment message to the HSS, where the acknowledgment message carries the registration status information of the called user in the CS domain, for example, the called user is registered in the CS domain, or is The user is not registered in the CS domain.
  • the HSS is based on the HLR
  • the received confirmation message determines the registration status of the called user in the CS domain.
  • the HSS routes the call according to the determined registration status of the called user in the IMS domain, the type of session service, the terminal type of the called user, and the registration status in the CS domain.
  • a network selection policy database is further provided, wherein one or more groups of network selection logic policies are set in the database according to the operator or the user customization.
  • the called service terminal is a single-standby terminal
  • the calling service is a voice service call
  • the HSS will route the call to the CS domain to connect the called user
  • the HSS will route the call to the IMS domain to connect the called user;
  • the HSS will not route the call. At this time, the HSS may notify the calling user that the called party is not registered.
  • the call is transferred to the IMS domain for normal service calls; if it is not registered in the IMS domain but is already registered in the CS domain, generally, the system performs the above video service. The audio falls back, notifying the called user to answer the session in the CS domain.
  • the method further includes: the HSS querying the network selection policy database; and then selecting the network according to the registration status of the called user in the IMS domain, the terminal type, the session service type, and the registration status of the called user in the CS domain. Select the landing domain of the call in the policy database.
  • the HSS can select according to the user policy database according to whether the call service in the current calling user is a video service or a voice service, and has the technical advantage that domain selection is convenient; and
  • the terminal type of the called user is also determined, and then the network selection service of the system is completed in combination with the terminal type of the called user, thereby solving the problem that the user of the same number is registered in the multi-domain. technical problem.
  • FIG. 3 is a schematic structural diagram of an embodiment of a called user domain selection system according to the present invention.
  • a domain selection system of a called user including a home subscriber server HSS 100 and a home location a register HLR 300 and a network selection policy database 200, wherein the HSS 100 acquires a calling user in the IMS domain to initiate a call to the called user and a session service type;
  • the HSS 100 determines the registration status of the called user in the IMS domain, and the IMS interface is provided between the HSS 100 and the HLR 300, wherein the HSS sends a query message to the home location register HLR300, and The HLR 300 is responsive to the query message and determines a registration status of the called user in the CS domain;
  • the HSS 100 queries the network selection policy database 200, and routes the call according to the determined registration status of the called user in the IMS domain, the type of session service, and the registration status of the called user in the CS domain.
  • the HSS 100 determines the terminal type of the called user, and then the HSS 100 queries the network selection policy database 200 according to the determined called user.
  • the registration status of the IMS domain, the type of the terminal, the type of the session service, and the registration status of the called user in the CS domain, and the call is routed.
  • the network selection policy database 200 is a customizable component. For example, for voice services, if the user is registered in the CS domain or the IMS domain, the logic can be defined to transfer the voice service to the CS domain; if in the IMS If the related services in the domain are already registered and not registered in the CS domain, the logic can be defined to transfer the voice service to the IMS domain.
  • the user or the operator can also leave some extended interfaces for the future extended services, and if the user has special services in the subsequent time, the subsequent expansion of the service can be performed relatively quickly and quickly. For example, you can also define the logic of the network selection in combination with the current network conditions.
  • the system further includes a call session control function CSCF400, wherein the CSCF determines the session service type according to the received session request of the calling user, for example, the IMS domain.
  • the session service control function CSCF receives the Invite message initiated by the calling user, and sends the LIR message with the session service indication to the HSS 100, and determines and transfers the call according to the LIA message with the domain indication returned by the HSS 100. In the landing area.
  • the I-CSCF Since in the current IMS domain, the I-CSCF obtains the information of the user's S-CSCF from the HSS through the LIR/LIA message. Therefore, in order to realize the current session service type and landing domain indication between the LIR/LIA between the HSS and the CSCF, the LIR/LIA message of the existing Diameter protocol must be extended to bring the user's service. Logo.
  • the present invention adds a service flag extension field to the LIR message of the Diameter protocol:
  • the [Session-Type] field is an extension field, and carries a service type indication, which is a value of Voice, Video, Data, Fax, or Extand, which represents that the current session type of the calling user is a voice service or a video service. , data services, fax services or others.
  • the LIA message also joins the landing field indication extension field:
  • the [Session-Result] field is an extension field, which carries the service type indication, and the values are CS, IMS, Both, and Extand, which respectively represent the CS landing domain, the IMS landing domain, or the dual domain to be redirected by the called user. Landing, and, in other cases.
  • the HSS 100 determines the landing domain of the call; then, the HSS 100 generates a LIA message with the landing domain indication bit and returns it to the CSCF 400; in response to the LIA message, the CSCF 400 determines the landing domain of the call, and Transferring the call to the determined landing domain; and, in the preferred embodiment, the landing domain is a CS domain or an IMS domain or an IMS/CS dual domain.
  • the called domain selection system further includes: a mobile switching center server MSCS600 and a media gateway control function MGCF500, wherein when the HSS 100 determines the When the call is transferred to the CS domain, the CSCF 400 sends a message with a domain indication to the media gateway control function MGCF500, for example, an Invite (PreA, B) format message, where the PreA suppresses the HLR for domain selection logic, Normal CS domain process.
  • a mobile switching center server MSCS600 and a media gateway control function MGCF500
  • the HSS 100 determines that the CSCF 400 transfers the call to the IMS domain, the HSS generates a LIA message with the IMS Landing Domain Indicator bit returned to the CSCF 400; and, in response to the LIA message, the CSCF continues normal follow-up Process.
  • the CSCF 400 receives the LIA message with the landing field indication of the IMS/CS dual domain; then, according to the LIA message, the The CSCF triggers the one-way AS and realizes the same-vibration or smoothing service of the No.1 pass.
  • the system is also applicable to the second embodiment, that is, the HSS determines the registration status of the called user in the IMS domain, the type of the session service, the terminal type of the called user, and the registration status in the CS domain according to the determined manner. , routing the call.
  • the module for realizing the above functions can also be applied to the system, and details are not described herein again.
  • FIG. 4 is a block diagram showing an embodiment of a home subscriber server HSS according to the present invention.
  • the home subscriber server HSS100 mainly includes a determining module 101 and a routing module 102, wherein the determining module 101 determines that the called party is called when the calling party in the IMS domain initiates a call to the called user.
  • the routing module 102 routes the call according to the registration status of the called user in the CS domain, the type of session service of the calling user, and the registration status of the called user in the IMS domain.
  • FIG. 5 is a block diagram showing an embodiment of an HSS of a home service service of the present invention.
  • the determining module 101 further includes: an information receiving unit 1013, configured to receive a LIA message with a service type indication from the CSCF, determine a session service type of the calling user, and query unit 1011, Sending a query message to the HLR; determining unit 1012, determining a registration status of the called user in the CS domain according to the acknowledgement message received from the HSS.
  • FIG. 6 is a block diagram showing an embodiment of an HSS of a home service service of the present invention.
  • the routing module 102 further includes: The routing judging unit 1011 determines the routing mode according to the determined registration status of the called user in the CS domain, the service type of the calling user, and the registration status of the called user in the IMS domain.
  • the routing indication unit 1012 sends a LIA message to the CSCF according to the determined routing manner to indicate that the CSCF routes the call.
  • FIG. 7 is a schematic diagram of a module unit of an embodiment of an HSS that is a user service of the present invention.
  • the route indication unit further includes: a message generation subunit, configured to generate, according to the determined route state, The domain selects the indicated LIA message; and, the message sending subunit, sends the LIA message to the CSCF.
  • the CSCF implements receiving a call of a calling user, generating a LIR message, receiving a LIA message, and transferring a call, which can be implemented by a functional module implementing the above method, and these modules can all use the existing I-CSCF.
  • the P-CSCF or the S-CSCF can be used to replace and implement the corresponding functions.
  • the foregoing program may be stored in a readable storage medium, and when executed, the program includes
  • the foregoing storage method includes: ROM, RAM, disk, optical disk, intelligent platform, switch, and the like, which can store various program codes.

Abstract

L'invention concerne un procédé et un système de sélection de domaine pour des utilisateurs appelés, un serveur d'abonnés nominaux (HSS) chargé de la sélection de domaine, un programme d'ordinateur et un support de stockage. Le procédé de sélection de domaine pour les utilisateurs appelés comprend les étapes suivantes : le HSS obtient le type de service de l'appel et de la session entre les utilisateurs appelants et les utilisateurs appelés dans le domaine de sous-système multimédia IP (IMS) ; le HSS établit le statut d'enregistrement et/ou le type de terminal des utilisateurs appelés dans le domaine IMS ; le HSS interroge l'enregistreur de localisation nominal (HLR) afin d'obtenir le statut d'enregistrement des utilisateurs appelés dans le domaine à commutation de circuits (CS) ; le HSS achemine l'appel conformément au statut d'enregistrement établi des utilisateurs appelés dans le domaine IMS, au type de service de la session et/ou au type de terminal, ainsi qu'au statut d'enregistrement des utilisateurs appelés dans le domaine CS. L'invention permet de remédier au problème technique lié à la sélection de réseau des utilisateurs appelés si ceux-ci enregistrent le même numéro de téléphone dans plusieurs domaines différents, en configurant le HSS de manière à ce qu'il interroge le HLR afin d'obtenir le statut d'enregistrement des utilisateurs appelés dans le domaine CS et en combinant le type de service des utilisateurs appelants.
PCT/CN2012/077533 2011-06-27 2012-06-26 Procédé et système de sélection de domaine pour utilisateurs appelés, serveur d'abonnés nominaux (hss) dans le système, programme d'ordinateur et support de stockage WO2013000398A1 (fr)

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