WO2007076722A1 - Procédé, système, appareil et entité fonction de contrôle permettant de fournir des informations utilisateur - Google Patents

Procédé, système, appareil et entité fonction de contrôle permettant de fournir des informations utilisateur Download PDF

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Publication number
WO2007076722A1
WO2007076722A1 PCT/CN2006/003821 CN2006003821W WO2007076722A1 WO 2007076722 A1 WO2007076722 A1 WO 2007076722A1 CN 2006003821 W CN2006003821 W CN 2006003821W WO 2007076722 A1 WO2007076722 A1 WO 2007076722A1
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WIPO (PCT)
Prior art keywords
user
information
cscf
entity
address
Prior art date
Application number
PCT/CN2006/003821
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English (en)
Chinese (zh)
Inventor
Haiyan Jian
Hui Li
Original Assignee
Huawei Technologies Co., Ltd.
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
Priority claimed from CN2005101378225A external-priority patent/CN1992719B/zh
Priority claimed from CN 200610083171 external-priority patent/CN1968138A/zh
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007076722A1 publication Critical patent/WO2007076722A1/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
    • H04L65/1066—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
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and system for providing user information, a user registration information management apparatus, and a Call Session Control Function (CSCF) entity.
  • CSCF Call Session Control Function
  • SIP Session Initiation Protocol
  • IETF Internet Engineering Task Force
  • VoIP Voice over IP
  • SIP is a protocol for telephone signaling, used to initiate a session, can control the establishment and termination of multimedia sessions attended by multiple participants, and can dynamically adjust and modify session attributes: such as session bandwidth requirements, transmission media types (voice, video, Data, etc.), media codec format, support for multicast and unicast, etc. Therefore, SIP facilitates the development of value-added services for multiple applications in conjunction with the Internet.
  • FIG. 1 shows an architecture of an IMS according to the related art.
  • IMS is a subsystem superimposed on the packet network by the 3rd Generation Partnership Project (3GPP).
  • 3GPP 3rd Generation Partnership Project
  • the packet domain is used as the bearer channel for controlling signaling and media transmission, and the SIP protocol is introduced as the service control protocol.
  • the utility model provides a rich multimedia service by separating the service control from the bearer control by utilizing the characteristics of SIP single, easy to expand, and convenient media combination;
  • the main functional entities in the IMS include: controlling user registration and meeting The call session control function (CSCF, Call Session Control Function) entity of the call control function, the home subscriber server (HSS) that centrally manages the user subscription data, and the application server (AS, Application) that provides various service logic control functions. Server).
  • CSCF Call Session Control Function
  • HSS home subscriber server
  • AS Application
  • the IMS network uses the registration process of the SIP protocol to implement user access to the IMS network.
  • the IMS network authenticates the user's private identity and establishes an access domain secure channel.
  • the user registration succeeds in establishing a user public identity and the service call session control function (S-CSCF, Serving CSCF) entity in the home domain.
  • S-CSCF service call session control function
  • Serving CSCF Serving CSCF
  • the IMS system architecture integrates the Public Switched Telephone Network (PSTN) with Legacy Mobile Signalling Networks.
  • the CSCF can establish at least one multimedia session for it based on the request of the user or the network entity.
  • the proxy call control entity (P-CSCF, Proxy-CSCF) and the S-CSCF network element need to release the established session and the established session by sending a goodbye (BYE) message to the calling party and the called party when the user is logged out.
  • the IMS architecture includes a Breakout Gateway Control Function (BGCF) entity, a Media Gateway Control Function (MGCF, Media Gateway Control Function), and a Multimedia Resource Function Controller (MRFC).
  • BGCF Breakout Gateway Control Function
  • MGCF Media Gateway Control Function
  • MRFC Multimedia Resource Function Controller
  • P-CSCF SLF (Subscription Locator Function) entity, User Equipment (UE, User Equipment), IMS Media Gateway (IMS-MGW, IMS-Media Gateway), and Multimedia Resource Function Processor (MRFP, Multimedia Resource Function Processor
  • FIG. 2 shows a registration process using an SIP protocol by an IMS network according to the related art.
  • the IMS network uses the registration process of the SIP protocol to implement user access to the IMS network.
  • the IMS network authenticates the user's private identity and establishes a secure channel for the access domain. If the user is successfully registered, the S-CSCF of the home domain establishes a correspondence between the public identifier of the user and the current location of the user, and the S-CSCF simultaneously removes the subscription data of the user from the HSS.
  • AKA authentication key agreement
  • Step S202 The UE sends a registration request to the P-CSCF, as shown in the registration (REGISTER) message in FIG. Use the information in the ISIM module to initiate registration. If it is USIM, generate temporary IMPU and IMPI based on IMSI.
  • Step S204 The P-CSCF parses the home network address in the received REGISTER message by using a DNS protocol, and obtains an address of the I-CSCF (Interrogating Call Session Control Function) entity of the user's home network, and forwards the address.
  • the REGISTER message is sent to the I-CSCF.
  • Step S206 The I-CSCF sends a UAR message to the HSS to query the user registration status.
  • Step S210 The I-CSCF sends a REGISTER message to the S-CSCF assigned to the user.
  • Step S212 The S-CSCF finds that the initial registration is to query the user authentication data, and send a MAk message to the HSS to obtain an authentication set from the HSS.
  • Step S214 The HSS' returns a MAA message to the S-CSCF, where the user's authentication information, such as an authentication vector, is carried.
  • Step S216 The S-CSCF selects an authentication vector, and sends an authentication challenge message to the UE. As shown in FIG. 2, the 401 message is sent to the I-CSCF of the user home network.
  • Step S218 The I-CSCF returns by the original path, and forwards the 401 message to the foregoing P-CSCF.
  • Step S220 The P-CSCF saves IK and CK, establishes a secure channel, and forwards the 401 message to the UE.
  • Step S224 The P-CSCF parses the home network address in the REGISTER message by using the PNS protocol, obtains the address of the user's home network I-CSCF, and forwards the REGISTER message to the I-CSCF.
  • Step S226 The I-CSCF sends a UAR message to the HSS to query the HSS for the user registration status.
  • Step S228 The HSS returns a UAA message to the I-CSCF, which carries the address of the S-CSCF assigned to the user.
  • Step S230 The I-CSCF sends a REGISTER message to the S-CSCF assigned to the user.
  • Step S232 The S-CSCF checks the authentication response provided by the UE in the REGISTER message. If the match is successful, the authentication succeeds.
  • the S-CSCF sends a SAR message to the HSS to update the registration information of the HSS and request to download the subscription data of the user.
  • Step S234 The HSS returns the user's subscription data to the S-CSCF through the SAA message.
  • Steps S236 ⁇ S240 The S-CSCF returns a registration success confirmation message as the original path, such as a 200 OK message to the UE, and the 200 OK message arrives at the UE through the I-CSCF and the P-CSCF in sequence.
  • the IMS user subscription data downloaded by the S-CSCF may include one or more service profiles.
  • the service description includes information such as a public identity, a core network service authorization, an initial filtering rule set, and a shared initial filtering rule set.
  • a business description can contain a list of multiple initial filtering rules.
  • the initial filtering rule is the service parameters of a group of users.
  • An initial filtering rule can include the following information: the address of the triggered AS, the priority of the initial filtering rule, the trigger point, the default processing, and the optional service information. According to these parameters
  • the S-CSCF matches the priority of the initial filtering rule from high to low according to the trigger information in the trigger point and the received request message.
  • the S-CSCF sends the relevant request to the AS matching the initial filter rule through the IMS Service Control (ISC, IMS Service Control) interface. If the subscription data saved by the HSS changes, the HSS initiates a subscription data update request to the registered S-CSCF, and after receiving the subscription data update request, the S-CSCF updates the locally saved subscription data.
  • ISC IMS Service Control
  • FIG. 3 is a diagram showing a service providing architecture of the related art IMS system. For the sake of clarity, the figure does not list the interfaces between all network elements, and the following description also omits the part of FIG. 3 and has nothing to do with the present invention. Description of the network element. The functions of the main functional entities in the IMS system are respectively described below with reference to FIG.
  • the S-CSCF and the AS exchange services through the ISC interface.
  • the user can obtain the registration status, user ID, and subscription data of the user from the HSS through the Sh interface between the HSS and the AS.
  • the HSS is the most important database for each user. It stores all the information related to the contract. It is used to support the processing of calls and sessions by various network entities. The data saved includes: user identification, number, addressing information, Security information, location information, and user profile information.
  • a home network can have one or more HSSs, depending on the number of mobile subscription users, the capacity of the network equipment, and the specific networking conditions.
  • the HSS provides a business hall interface for user data maintenance (eg, adding, modifying, deleting). User subscription data, etc.).
  • the HSS supports user data downloads of the Cx interface (the interface between the HSS and the I/S-CSCF) and the Sh interface (the interface between the HSS and the AS).
  • the user registered message will be forwarded to the Home Location Register (HLR)/HSS, and then the user's subscription data will be downloaded from the HLR/HSS for subsequent business operations.
  • HLR Home Location Register
  • the AS provides the IM value-added service for the IMS user, and can be located on the user's home network or by the third party.
  • the AS obtains the data related to the user service through the interface with the HSS.
  • User status information including: user identification and registration status.
  • Each user who has signed the IMS service is assigned at least one private user identifier by the home network operator for use in the registration, authorization, management, and accounting process, and uses a network access identifier (NAI, Network Access Identifier).
  • NAI Network Access Identifier
  • each IMS user has at least one public user identifier, which is used to identify himself and find the other party when communicating with other users. Private user IDs are generally not publicly available, while public user IDs are publicly available.
  • the registration status of the user can be divided into three states: registration, logout and unregistration.
  • the registration status means that a public user ID completes the REGISTER process and is assigned the service S-CSCF, and the logout status refers to a status.
  • the public user ID has not initiated the REGISTER process at all.
  • the unregistered state refers to a public user ID that does not initiate the REGISTER process, but is assigned the service S-CSCF as the called party or has an S-CSCF that holds the corresponding public user ID. User's description information.
  • the AS When the AS implements the service, the AS can obtain the registration status, user ID, and subscription data of the user from the HSS through the Sh interface.
  • some services require more information, including location/address information, terminal capability information, access network information, visited network information, home network information, etc.
  • the AS cannot obtain these users through the HSS. The information makes some services difficult to carry out. The following is an example of how the AS can't obtain the user's access location information through the HSS.
  • the UE In the emergency call service such as 110, 119 or 120, if the calling party provides the access location information in the call information when accessing the network, the called party can receive the call information according to the information provided in the call information.
  • the access location information determines the specific location of the calling party. Therefore, it is necessary to provide access location information in a service similar to emergency call service such as 110, 119 or 120 that needs to determine the specific location of the calling party.
  • the UE In the wireless local area network (WLAN) technology, the UE also needs to provide UE access location information to an application function entity (AF) in the IMS when accessing the IMS.
  • the main functional entities in IMS include AF and Policy Decision Function Entity (PDF) for QoS Management.
  • the AF mainly includes a Call Control Entity (CSCF) that controls functions such as user registration and session, a Home Subscriber Server (HSS) that centrally manages user subscription data, and an Application Server (AS) that provides various service logic control functions.
  • CSCF is the core of IMS. It can be divided into the following three types according to logical functions: proxy CSCF (P-CSCF), query CSCF (I-CSCF) and service CSCF (S-CSCF).
  • P-CSCF proxy CSCF
  • I-CSCF query CSCF
  • S-CSCF service CSCF
  • the P-CSCF is an entry for the user terminal to access the IMS system, and can implement the functions of the proxy (Proxy) and the user agent (User Agent) in the SIP protocol; the I-CSCF can select the correct S-CSCF for the user by querying the HSS.
  • the S-CSCF is used to send all the session processing in the network, including authenticating the user authentication and triggering the corresponding service.
  • FIG 4 is a schematic diagram of the UE providing access location information when accessing the IMS in the prior art.
  • Path (Path 1) is a path for the UE to provide access location information when accessing the IMS according to the current 3GPP standard
  • Path 2 is a standard for the UE to study the Telecommunications Internet Convergence Standard Group (TISPAN) standard according to the European Telecommunications Standards Institute.
  • TISPAN Telecommunications Internet Convergence Standard Group
  • the Gm interface is between the UE and the P-CSCF
  • the Mw interface between the P-CSCF and the I/S-CSCF
  • the ISC interface between the I/S-CSCF and the AS
  • the P-CSCF and the NACF/CLF are E2 interfaces.
  • the Gm interface, the Mw interface, the ISC interface, or the E2 interface can implement information exchange between entities, and can also implement UE access location information between entities. transfer.
  • the Sh interface is used between the AS and the HSS, and the information exchange between the AS and the HSS can be performed through the Sh interface, and the UE access location information can also be transmitted.
  • the Cx interface is between the I/S-CSCF and the HSS. Currently, the I/S-CSCF and the HSS can exchange information through the Cx interface, but the UE access location information cannot be transmitted.
  • the current 3GPP standard extends the SIP protocol, and a P-Access-Network-Info header field for carrying UE access location information is added to the SIP message.
  • the P-Access-Network-Info header field contains two pieces of information: one is the access type and the other is the access information.
  • the UE When the UE is the calling party, the UE fills in its own access location information into the P-Access-Network-Info header field of the SIP message and sends it to the CSCF and the AS, the CSCF and the AS from the P-Access-Network-Info header of the SIP message.
  • the UE access location information is obtained in the domain.
  • the CSCF or the AS may send a SIP message carrying the UE access location information query request to the UE, and the UE carries the UE access location information in the P-Access-Network-Info header field of the SIP response message. Returned to the CSCF or AS, the CSCF or AS obtains the UE access location information from the P-Access-Network-Info header field of the SIP response message.
  • the current TISPAN standard specifies that the UE carries its own access location information in the P-Access-Network-Info header field of the SIP message when the UE accesses the IMS or after the UE access location information changes.
  • the AC obtains the UE access location information from the P-Access-Network-Info header field of the SIP message, and reports the obtained UE access location information to the network access configuration function entity (NACF).
  • NACF network access configuration function entity
  • the NACF allocates an IP address to the UE, the IP address assigned to the UE and the received UE access location information are stored in a logical function entity (CLF); the P-CSCF uses the diameter protocol to obtain the UE from the CLF query through the E2 interface.
  • the process of providing UE access location information from the above two standards can be seen, when the UE accesses the IMS' or after the UE access location information changes, the UE access location information passes between the UE and the CSCF or between the UE and the AS.
  • the information exchange is provided to the CSCF or AS, and the UE access location information is not provided to the HSS. Since the UE access location information is not provided to the HSS, the UE access location information is not saved in the HSS, so the HSS in the prior art is also absent.
  • the AS provides the UE access location information, and the AS can only obtain the UE access location information through the information exchange between the AS and the UE. If the UE is busy with the call or other services, the AS cannot exchange information with the UE, and the AS cannot obtain the UE access location information.
  • Adaptive video service The AS needs to obtain the bandwidth capability and the video of the service according to the information of the access network where the user is registered.
  • Service that adapts to the home network capability The AS needs to adapt the service requirements according to the location and capability information of the S-CSCF where the user is registered.
  • Location service The AS needs to query the location information registered by the user, according to Location information, providing relevant location services. Summary of the invention
  • Embodiments of the present invention provide a method and system for providing user information, which can provide user information to a network such as an AS.
  • the embodiment of the invention further provides a user registration information management device capable of managing user registration information of the IMS network.
  • the embodiment of the present invention further provides a call session control function (CSCF) entity, which can determine a device related to user registration.
  • CSCF call session control function
  • Embodiments of the present invention disclose a method for providing user information, which is applied to an Internet Multimedia Subsystem (IMS) network including a functional entity for providing user registration information, the method including determining, when the user registers with the network, the user The user registration information related device is obtained; the function entity obtains the user registration information of the user from the determined device; the function entity provides the user registration information of the user.
  • IMS Internet Multimedia Subsystem
  • the device is determined by a call session control function CSCF entity.
  • the function entity acquires user registration information of the user, including: The CSCF entity acquires user registration information of the user from the device; the function entity acquires user registration information of the user from the CSCF entity.
  • the function entity acquiring the user registration information of the user includes: the CSCF entity acquiring the address of the device and sending the address to the function entity; and the function entity acquiring the user registration information of the user from the device according to the address.
  • the embodiment of the invention further discloses a method for providing user information, which is applied to an IMS network including an access control device and an HSS, the method comprising: determining, when the user registers with the network, the access control device accessed by the user The HSS acquires access location information of the user from the access control device and provides the access location information.
  • the embodiment of the invention discloses a system for providing user information, comprising: a CSCF entity; wherein the system further comprises: a functional entity for providing user registration information; when the user registers with the network, the CSCF entity determines a device related to user registration information of the user; the function entity acquires user registration information of the user from the device determined by the CSCF entity and provides the user registration information.
  • An embodiment of the present invention discloses a user registration information management apparatus, where the apparatus includes: a first module, when a user registers with a network, acquires user registration information of the user from a device related to the user registration information of the user; The module saves user registration information from the first module and provides the user registration information.
  • the first module acquires user registration information of the user from the device through a CSCF entity.
  • the first module includes: a first submodule, which acquires an address of the device; and a second submodule, which is queried from the device according to the address obtained by the first submodule to obtain user registration information of the user. .
  • the second module includes: a third submodule, which stores user registration information from the first module; and a fourth submodule, which extracts an external network from the third submodule The user registration information required by the body is provided to the external network entity.
  • the embodiment of the invention further discloses a CSCF entity, comprising: a third module, which determines a device related to the user registration information of the user when the user registers with the network.
  • the CSCF entity further includes: a fourth module, where the user registration information of the user is obtained from the device determined by the third module and output.
  • the CSCF entity further includes: a fifth module, from which the user registration information required by the external network entity is extracted and provided to the external network entity.
  • the CSCF entity further includes: a sixth module, acquiring an address of the device determined by the third module and outputting.
  • FIG. 1 shows an architecture of an IMS according to the related art
  • Figure 2 shows a registration process of the IMS network using the SIP protocol according to the related art
  • Figure 3 shows a service provision architecture diagram of the related art IMS system
  • Fig. 4 is a schematic diagram showing the access location information provided by the UE when accessing the IMS in the related art
  • FIG. 5 is a schematic structural diagram of networking for providing access location information according to an embodiment of the present invention
  • 6 shows a signaling flow diagram for providing access location information in an embodiment in accordance with the present invention
  • Figure 7 is a diagram showing the networking structure for providing access location information in an embodiment in accordance with the present invention.
  • Figure 8 is a flow chart showing the signaling of providing access location information in an embodiment in accordance with the present invention.
  • FIG. 9 is a block diagram showing the structure of an IMS network user registration information management apparatus according to an embodiment of the present invention.
  • FIG. 10 is a flowchart of a method for managing IMS network user registration information according to an embodiment of the present invention.
  • FIG. 11 is a message flow diagram showing an IMS network user registration information management method in accordance with an embodiment of the present invention.
  • FIG. 12 is a message flow diagram showing an IMS network user registration information management method in accordance with an embodiment of the present invention.
  • FIG. 13 is a message flow diagram showing an IMS network user registration information management method in accordance with an embodiment of the present invention. Mode for carrying out the invention
  • an interface for providing UE access location information to the HSS needs to be configured.
  • the AC/ The NACF/CLF provides the UE access location information to the HSS through the configured interface, so that the HSS can provide the UE access location information to the AS.
  • the interface configured to provide the UE access location information to the HSS includes the following two types. Method to realize:
  • Manner 1 Configure the Cx interface between the I/S-CSCF and the HSS, and add parameters for processing the access location information to the Cx interface between the I/S-CSCF and the HSS, so that the I/S-CSCF can be configured.
  • the Cx interface sends the UE access location information to the HSS.
  • Manner 2 Configure the E2 interface between the AC/NACF/CLF and the HSS, that is, configure the E2 interface between the AC/NACF/CLF and the HSS and add the subscription command and notification command to the configured E2 interface.
  • the Mw interface between the P-CSCF and the I/S-CSCF and the Cx interface between the I/S-CSCF and the HSS are separately configured, between the P-CSCF and the I/S-CSCF.
  • the parameters of the access server address information are respectively added to the Mw interface and the Cx interface between the I/S-CSCF and the HSS.
  • the P-CSCF can obtain the access location server address by querying the local configuration information, and then access the server through the configured Mw interface.
  • the address information is sent to the I/S-CSCF, and the I/S-CSCF sends the access server address information to the HSS through the configured Cx interface, and the HSS passes the configured quasi E2 interface to the AC/ according to the received access server address information.
  • the NACF/CLF sends the request information; after receiving the request information, the AC/NACF/CLF can provide the UE access location information to the HSS through the configured quasi E2 interface.
  • the UE When the UE accesses the IMS, the UE sends an attach request carrying the UE access location information to the AC/NACF/CLF, and the AC/NACF/CLF allocates an IP address to the UE after receiving the attach request, and establishes and saves the UE access location.
  • the AC/NACF/CLF provides the UE access location information to the HSS.
  • the AC/NACF/CLF specifically provides the UE access location information to the HSS as follows:
  • the P-CSCF receives the registration request of the UE, and sends the UE access bit to the AC/NACF/CLF.
  • the information request request is sent;
  • the AC/NACF/CLF queries the correspondence between the UE access location information and the UE IP address according to the UE IP address carried in the request sent by the P-CSCF, and obtains the UE access location information;
  • AC/NACF/ The CLF sends the UE access location information to the P-CSCF, and the P-CSCF sends the UE access location information to the I/S-CSCF, and the I/S-CSCF sends the UE access location information to the configured Cx interface.
  • the HSS thereby providing UE access location information to the HSS.
  • the UE access location information subscription mechanism may be further configured on the AC/NACF/CLF, and the UE access location information subscription information is further carried in the request sent by the P-CSCF to the AC NACF/CLF.
  • the AC/NACF/CLF updates the UE access location information, and carries the latest UE access location information in the subscription notification according to the P-CSCF in its own subscription information, and sends the information to the P- The CSCF
  • the P-CSCF then sends the latest UE access location information to the I/S-CSCF
  • the I/S-CSCF sends the latest UE access location information to the HSS through the configured Cx interface, thereby connecting the UE.
  • the location information is provided to the HSS.
  • the request sent by the P-CSCF to the AC/NACF/CLF includes, but is not limited to, a UE access location information query request.
  • the AC/NACF/CLF specifically provides the UE access location information to the HSS as follows:
  • the HSS sends an access location information query request carrying the UE IP address to the AC/NACF/CLF through the configured quasi E2 interface according to the AC/NACF/CLF address information, and the AC/NACF/CLF receives the UE access location information.
  • the UE access location information is used to query the UE IP address carried in the request to query the correspondence between the UE access location information and the UE IP address, and obtain the UE access location information; then, AC/NACF/CLF
  • the UE access location information is carried in the response of the UE access location information query request to the HSS through the configured quasi E2 interface, thereby providing the UE access location information to the HSS.
  • the UE access location information subscription mechanism may be further configured on the AC/NACF/CLF, and the UE access location information subscription information is further carried in the request sent by the HSS to the AC/NACF/CLF.
  • the AC/NACF/CLF updates the UE access location information, and carries the latest UE access location information in the subscription notification according to the HSS's subscription information through the configured quasi-E2.
  • the interface is sent to the HSS to provide UE access location information to the HSS.
  • the request sent by the HSS to the AC/NACF/CLF includes, but is not limited to, a UE access location information query request.
  • the HSS may further save the received UE access location information; after the HSS receives the latest UE access location information, the HSS may further save the saved information.
  • the UE access location information is updated to the latest UE access location information.
  • the HSS can provide the UE access location information to the AS for processing in the following two manners:
  • the method is as follows:
  • the AS sends a UE access location information query request to the HSS.
  • the HSS After receiving the UE access location information query request, the HSS carries the UE access location information in the UE access location information query request response and returns the response to the AS.
  • the method 2 further configures the UE access location information subscription mechanism on the HSS, and further carries the UE access location information subscription information in the request sent by the AS to the HSS.
  • the HSS updates the UE access location information, and carries the latest UE access location information in the subscription notification according to the AS subscription information, and sends the information to the AS.
  • the request sent by the AS to the HSS includes, but is not limited to, a UE access location information query request.
  • FIG. 5 shows a schematic diagram of a networking structure for providing access location information according to an embodiment of the present invention.
  • the network structure shown in FIG. 5 is obtained by modifying the networking structure shown in FIG. 4 according to the embodiment of the present invention. Therefore, the same portions in FIG. 5 as those in FIG. 4 are not described below, and only the improved portion is provided. description.
  • the Cx interface between the I/S-CSCF and the HSS is a configured Cx interface, and the configured Cx interface between the I/S-CSCF and the HSS can perform information exchange and UE connection. The delivery of location information.
  • FIG. 6 shows a signaling flowchart for providing access location information according to an embodiment of the present invention, which includes the following steps:
  • Step 601 The UE sends an attach request to the AC/NACF/CLF through the access point (AP), requesting the AC/NACF/CLF to allocate an IP address for the UE, and carrying at least the UE access location information in the attach request.
  • AP access point
  • Step 602 The AC/NACF/CLF receives the attach request of the UE, allocates an IP address to the UE, establishes and maintains a zigzag relationship between the UE access location information and the UE IP address, and then carries the IP address assigned to the UE. Returned to the UE in the attach request response.
  • Step 603 The UE sends a registration request to the P-CSCF, where the registration request carries at least the source IP address and the destination IP address.
  • the source IP address is the IP address of the port
  • the destination IP address is the IP address of the P-CSCF.
  • Step 604 The P-CSCF receives the registration request, obtains the IP address of the UE from the registration request, and sends the UE carrying the UE IP address to the AC/NACF/CLF through the E2 interface between the P-CSCF and the AC/NACF/CLF. Enter the location information query request.
  • Step 605 The AC/NACF/CLF receives the UE access location information query request, and queries the correspondence between the UE access location information and the UE IP address according to the IP address of the UE carried in the request to obtain the UE access location information. Then, the obtained UE access location information is carried in the UE access location information query request response and returned to the P-CSCF.
  • Steps 606-607 The P-CSCF carries the acquired UE access location information in the P-Access-Network-Info header field of the SIP message and sends it to the I-CSCF/S-CSCF, I-CSCF/S-CSCF.
  • the UE access location information is sent to the HSS in the parameter of the processing access location information added by the Cx interface, and the HSS saves the received UE access location information.
  • Steps 608-610 The HSS returns a SIP response message to the I-CSCF/S-CSCF, and the I-CSCF/S-CSCF returns a SIP response message to the P-CSCF, and the P-CSCF returns a registration request response to the UE.
  • Step 611 The AS sends a UE access location information query request to the HSS through the Sh interface.
  • FIG. 7 is a schematic diagram showing a networking structure for providing access location information according to an embodiment of the present invention. As in Fig. 5, the same portions as those in Fig. 4 in Fig. 7 will not be described below, and only the modified portions will be described.
  • the Cx interface between the I/S-CSCF and the HSS in FIG. 7 is a newly configured Cx interface in the embodiment, and the newly configured Cx interface between the I/S-CSCF and the HSS can not only exchange information but also The delivery of the address information of the access location server is performed.
  • the Mw interface between the P-CSCF and the I/S-CSCF is the newly configured Mw interface in the embodiment, and the P-CSCF sends the access location server address to the I/S-CSCF through the newly configured Mw interface.
  • the I/S-CSCF will access the location server address HSS through the newly configured Cx interface.
  • the embodiment of the present invention further configures a quasi E2 interface between the AC/NACF/CLF and the HSS, and the HSS can send the UE access location to the AC/NACF/CLF through the configured quasi E2 interface according to the access location server address.
  • the AC NACF/CLF can provide the UE access location information to the HSS through the configured quasi E2 interface.
  • FIG. 8 shows a signaling flowchart for providing access location information according to an embodiment of the present invention, which includes the following steps:
  • Step 801 The UE sends an attach request to the AC/NACF/CLF through the AP, to request the AC/NACF/CLF to allocate an IP address to the UE, where the attach request carries at least the UE access location information.
  • Step 803 The UE sends a registration request to the P-CSCF, where the registration request carries at least the source IP address and the destination IP address.
  • the source IP address is the IP address of the UE
  • the destination IP address is the IP address of the P-CSCF.
  • Steps 804-805 The P-CSCF receives the registration request, queries the local configuration information according to the UE IP address carried in the registration request, obtains the access location server address information, and then sets the UE IP address and the access location through the newly configured Mw interface.
  • the server address information is sent to the I-CSCF/S-CSCF, and the I-CSCF/S-CSCF sends the UE IP address and the access location server address to the HSS through the newly configured Cx interface, and the HSS saves the received UE IP address and Access location server address.
  • the access location server address is the domain name or IP address of the access location server.
  • Steps 806-808 The HSS returns a SIP response message to the I-CSCF/S-CSCF, and the I-CSCF/S-CSCF returns a SIP response message to the P-CSCF, and the P-CSCF returns a registration request response to the UE.
  • Step 809 The HSS> sends the UE access location information query request carrying the UE IP address to the AC/NACF/CLF through the configured quasi E2 interface according to the configured access location server address.
  • Step 810 The AC/NACF/CLF receives the UE access location information query request, and queries the correspondence between the UE access location information and the UE IP address according to the UE IP address carried in the request, and obtains the UE access location information. Then, the acquired ⁇ access location information is carried in the UE access location information query request response through the configured quasi E2 interface, and returned to the HSS. !
  • the HSS may also obtain the access location information of the UE from other network elements, for example: sending the UE that carries the UE IP address to access the location information query request to the HLR of the user, The HLR obtains its access location information according to the UE IP address, and then returns the access location information of the UE to the HSS through the response of the UE access location information query request.
  • Step 811 The AS sends a UE access location information query request to the HSS through the Sh interface.
  • the UE access location information query request sent by the P-CSCF to the AC/NACF/CLF carries the IP address of the UE.
  • the UE access location information query request may be further carried in the UE access location information query request sent by the P-CSCF to the AC NACF/CLF.
  • the UE access location information subscription mechanism needs to be configured on the AC/NACF/CLF. After the AC/NACF/CLF learns that the UE access location information changes, the AC/NACF/CLF updates the UE access location information, and sends the latest UE access location information to the latest UE access location information according to the subscription information of the P-CSCF.
  • the P-CSCF provides the latest UE access location information to the I/S-CSCF through the Mw interface between itself and the I/S-CSCF, and the I/S-CSCF passes the configured Cx interface to the HSS Send the latest UE access location information.
  • the HSS After the HSS receives the latest UE access location information, the HSS updates the saved UE access location information to the latest UE access location information.
  • the HSS sends the UE access location information query request to the AC/NACF/CLF to carry the IP address of the UE.
  • the UE access location information subscription request may be further carried in the UE to send the UE access location information query request to the AC/NACF/CLF.
  • the UE access location information subscription mechanism needs to be configured on the AC/NACF/CLF. After the AC/NACF/CLF learns that the UE access location information changes, the AC/NACF/CLF updates the UE access location information, and sends the latest UE access location information to the HSS through the subscription notification according to the HSS subscription information. .
  • the HSS updates the saved UE access location information to the latest UE access location information.
  • the UE access location information query request sent by the AS to the HSS carries the IP address of the UE.
  • the UE access location information subscription request may be further carried in the AS sending the UE access location information query request to the HSS.
  • the UE access location information subscription mechanism needs to be configured on the HSS. After the HSS learns that the UE access location information changes, the HSS updates the UE access location information, and sends the latest UE access location information to the AS through the subscription notification according to the AS subscription information.
  • the AS can obtain the access location information registered by the user through the HSS.
  • the AS also needs to obtain other information registered by the user through the HSS to meet the requirements of various services.
  • a functional entity for providing user registration information is also proposed in the embodiment of the present invention, and the functional entity can be implemented in the IMS network and It is called an IMS network user registration information management device.
  • the IMS network user registration information management apparatus and management method proposed by the embodiments of the present invention are described below.
  • Figure 9 shows a compositional diagram of an IMS network user registration information management apparatus 900 in accordance with an embodiment of the present invention.
  • the apparatus 900 includes: a data interface 910, configured to transmit user registration information with an IMS network, where the user registration information may include: 1. Terminal information, which may include: terminal address information and capability information registered by the user. 2. The identification information; 2. The access network information may include: the type of the access network registered by the user, the capability information, the physical information corresponding to the terminal, etc.; 3.
  • the visited network information including: the proxy server through which the user registers Address information, routing information, capability information, etc.; 4, home network information, package The registration status of the registered user and the registration timer duration, the address capability information of the registered registration server, the address information of the application server registered by the third party, the routing information, the terminal that subscribes to the registration status of the user, and the address information of the network element.
  • the application server information may include at least one of the following: an address and capability information of the application server, a user's service, rights, and service-related subscription information; 6.
  • Other information including: User registration routing information , the address information of the user signing database, and the like.
  • the apparatus can also include: a database 920 for managing user registration information.
  • the database 920 includes: a saving module 922 for storing user registration information; and a query module 924 for querying user registration information.
  • a saving module 922 for storing user registration information
  • a query module 924 for querying user registration information.
  • only one mode of internal module division of the user registration information management apparatus 900 is shown.
  • the user registration information management apparatus 900 can also perform module division in other manners, which cannot be exhaustive, but It is within the scope of protection of the present invention.
  • the foregoing device 900 may be added to the IMS network, where the device may be a new entity in the network, or implemented by a CSCF entity, an HSS, an AS, etc., and the device may also be implemented as a user registration database (U DB). , User Registration DataBase ), the URDB can also exist alone or built into other network entities. For IMS networks, URDB can be built into entities such as S-CSCF, HSS, and AS.
  • the saving module 922 includes: a registration saving module, configured to: when the user successfully registers, send a request to the URDB to save the user registration information; and the subscription saving module is configured to subscribe to the user registration in the terminal or other network entity.
  • the application server save module is configured to receive, after the user's third party registration is successful, the request from the application server, and save the application from the application. User registration information for the server.
  • the query module 924 includes: a request/response query module, configured to return a user-related request when the external function entity sends a request for querying the user registration information to the URDB. And a subscription/notification query module, configured to: when the external function entity sends a request message for subscribing to the user registration information to the IIRDB, establish a subscription relationship with the external functional entity and notify the external functional entity of the user related information.
  • a request/response query module configured to return a user-related request when the external function entity sends a request for querying the user registration information to the URDB.
  • a subscription/notification query module configured to: when the external function entity sends a request message for subscribing to the user registration information to the IIRDB, establish a subscription relationship with the external functional entity and notify the external functional entity of the user related information.
  • the preservation and inquiry of the information is realized.
  • FIG. 10 is a flow chart showing a method for managing an IMS network user registration information according to an embodiment of the present invention, including the following steps:
  • Step S1002 The URDB and the SIP network pass user registration information.
  • the user registration information may include: 1. Terminal information, which may include: terminal address information, capability information, and identification information registered by the user; 2. access network information, which may include: type of access network where the user is registered , capability information, location information, etc.; 3. Visiting network information, including: address information, routing information, and capability information of the proxy server through which the user is registered; 4. Home network information, including: registration status of the registered user and The registration timer duration, the address information and capability information of the registered registration server, the address information and routing information of the application server registered by the third party, the terminal information of the terminal and the network element subscribed to the registration status of the user, etc.; 5. Application server The information includes at least one of the following items: address and capability information of the application server, service and rights information of the user, and subscription information related to the user service; 6. other information, including: user registration routing information and user subscription Location information of the database, etc.
  • Step S1004 The URDB manages user registration information.
  • the management user registration information includes: saving user registration information and querying user registration information.
  • the saving the user registration information may include: the registration server sending a request after the user registration related to the user registration information is successful, to save the user registration information in the URDB ' ⁇ ; and/or, the registration server sends a request after the session of the network 'entity subscription user's registration status is successfully established to save the user registration information related to the subscription in the URDB; and/or, the application server is in the user's After the three parties register successfully, a request is sent to save the user registration information of the application server in the URDB.
  • the querying the user registration information may include: when the external function entity sends a request message for querying the user's registration information, the URDB returns the user registration information to the external function entity; and/or, when the external function entity sends the subscription user registration information
  • the URDB establishes a subscription relationship with the external functional entity to notify the external functional entity user of the subscription information.
  • FIG. 11 is a message flow diagram showing an IMS network user registration information management method according to an embodiment of the present invention.
  • the URDB is built into the HSS, and the AS queries the location of the user to the HSS with the built-in URDB'.
  • Registration information such as information and terminal capability information. As shown in Figure 11, the following steps are included:
  • Step S1102 The UE sends a registration request, such as a REGISTER message, to the P-CSCF.
  • the registration request carries terminal capability information of the UE.
  • Step S1104 The P-CSCF uses the DNS protocol to parse the home network address in the REGISTER message, obtains the address of the home network I-CSCF, and forwards the REGISTER message to the I-CSC of the user home network.
  • Step S1106 The I-CSCF of the user home network sends a UAR message to the HSS to check the user registration status.
  • Step S1108 The HSS returns a UAA message to the I-CSCF, where the UAA message carries the address of the S-CSCF assigned to the user, and obtains the address of the S-CSCF assigned to the user.
  • Step S1110 The I-CSCF sends a REGISTER message to the S-CSCF assigned to the user.
  • Step S1114 The HSS queries the authentication information of the user, such as an authentication vector, and returns the information to the S-CSCF through the MAA message.
  • Step S1116 The S-CSCF selects an authentication vector from the received authentication information
  • the UE sends an authentication challenge message to the I-CSCF, such as a 401 message.
  • Step S1118 The I-CSCF forwards the 401 message to the P-CSCF by the original path.
  • Step S1120 The P-CSCF forwards the 401 message to the UE.
  • Step S1122 The UE calculates an authentication response, re-initiates the registration process, and sends a REGISTER message to the P-CSCF.
  • Step S1124 The P-CSCF uses the DNS protocol to resolve the home network address in the REGISTER message, and obtains the address of the user's home network I-CSCF.
  • Step S1126 The home network I-CSCF of the user sends a UAR message to the HSS to query the HSS for the user registration status.
  • Step S1128 The HSS returns a UAA message to the I-CSCF, which carries the address of the S-CSCF assigned to the user.
  • Step S1130 The I-CSCF sends a REGISTER message to the S-CSCF assigned to the user.
  • Step S1132 The S-CSCF checks the authentication response provided by the UE in the REGISTER message, and if the matching is successful, the authentication succeeds, and the S-CSCF sends a SAR message to the HSS to update the user registration information of the HSS, and the terminal of the UE is used.
  • the registration information such as the capability information is saved to the URDB built in the HSS, and the subscription data of the user is requested to be downloaded.
  • Step S1134 The HSS returns the user's subscription data to the S-CSCF through the SAA message.
  • Steps S1136 ⁇ S1140 The S-CSCF returns a registration success confirmation message by the original path, such as 200 OK message to the UE, the 200 OK message sequentially passes through the I-CSCF and the P-CSCF to step S1142: The S-CSCF initiates a third party registration request, such as a REGISTER message, to the AS according to the initial filtering rule in the subscription data of the user. .
  • Step S1144 The AS processes the REGISTER message of the third party, and returns a successful response, such as a 200 OK message, to the S-CSCF.
  • Step S1146 After the registration is successful, the AS sends a Push message to the HSS that has the built-in URDB, and requests to save the user registration information of the AS, including: the user's service information, rights information, subscription information, and the like.
  • Step S1148 The HSS with built-in U DB returns to the AS to save a successful response, such as a Push Resp message.
  • Step S1150 The AS sends a Sh interface extraction (Sh-Pull) message to the HSS with the built-in URDB according to the service requirement, to request user registration information such as location information and terminal capability information of the user.
  • Sh-Pull Sh interface extraction
  • Step S1152 The HSS with the built-in URDB returns the location information, terminal capability information, and the like of the user to the AS through the Sh-Pull Resp message.
  • the URDB built in the HSS can also be applied to the embodiment shown in FIG. 6 to provide the access location information of the UE for the AS.
  • the specific process is the same as that of FIG. 6, and details are not described herein again.
  • FIG. 12 is a message flow diagram of a IMS network user registration information management method according to an embodiment of the present invention.
  • the URDB is used as an independent network device, and the AS queries the URDB for location information and terminal capabilities of the user. Registration information such as information. As shown in Figure 12, the following steps are included:
  • Step S1202 The UE sends a registration request, such as a REGISTER message, to the P-CSCF.
  • the registration request carries terminal capability information of the UE.
  • Step S1204 The P-CSCF makes the home network address in the REGISTER message
  • the DNS protocol is used for parsing to obtain the address of the user's home network I-CSCF, and the REGISTER message is forwarded to the I-CSCF of the user's home network.
  • Step S1206 The I-CSCF of the user home network sends a UAR message to the HSS to query the user registration status.
  • Step S1208 The HSS returns a UAA message to the I-CSCF, where the UAA message carries the address of the S-CSCF assigned to the user, and obtains the address of the S-CSCF assigned to the user.
  • Step S1210 The I-CSCF sends a REGISTER message to the S-CSCF assigned to the user.
  • Step S1212 The S-CSCF assigned to the user finds that the user is the first registration, and sends a MAR message to the HSS to obtain an authentication set from the HSS.
  • Step S1214 The HSS queries the authentication information of the user, such as an authentication vector, and returns the information to the S-CSCF through the MAA message.
  • Step S1216 The S-CSCF selects an authentication vector from the received authentication information, and sends an authentication challenge message to the UE to the I-CSCF, such as a 401 message.
  • Step S1218 The I-CSCF forwards the 401 message to the P-CSCF by the original path.
  • Step S1220 The P-CSCF forwards the 401 message to the UE.
  • Step S1222 The UE calculates an authentication response, re-initiates the registration process, and sends a REGISTER message to the P-CSCF.
  • Step S1224 The P-CSCF uses the DNS protocol to parse the home network address in the REGISTER message, and obtains the address of the home network I-CSCF of the user.
  • Step S1226 The home network I-CSCF of the user sends a UAR message to the HSS to query the HSS for the user registration status.
  • Step S1228 The HSS returns a UAA message to the I-CSCF, which carries the address of the S-CSCF assigned to the user.
  • Step S1230 The I-CSCF sends a REGISTER message to the user assigned to the user S-CSCF.
  • Step S1232 The S-CSCF checks an authentication response provided by the UE in the REGISTER message. If the match is successful, the authentication succeeds.
  • the S-CSCF sends a SAR message to the HSS to update the user registration information of the HSS, and requests the user to sign the subscription. data.
  • Step S1234 The HSS returns the user's subscription data to the SAA message.
  • Step S1235 The S-CSCF saves the registration information such as the location information and the terminal capability information of the UE to the URDB.
  • Step S1236 The URDB returns a response to the S-CSCF after saving the user registration information.
  • Step S1237 ⁇ S1240 The S-CSCF returns a registration success confirmation message, such as a 200 OK message to the UE, and the 200 OK message sequentially passes through the I-CSCF and the P-CSCF to step S1242: the S-CSCF is contracted according to the user.
  • the initial filtering rule in the data initiates a third party registration request to the AS, such as a REGISTER message.
  • Step S1244 The AS processes the REGISTER message of the third party, and returns a successful response, such as 200 OK message, S-CSCF o
  • Step S1246 After the registration is successful, the AS sends a Push message to the URDB, and requests to save the user registration information of the AS, including: user service information, rights information, subscription information, and the like.
  • Step S1248 The URDB returns a success response to the AS, such as a Push Resp message.
  • Step S1250 The AS sends a Sh interface extraction (Sh-Pull) message to the URDB according to the service requirement, to request user registration information such as location information and terminal capability information of the user.
  • Step S1252 The URDB returns the location information, the terminal capability information, and the like of the user to the AS through the Sh-Pull Resp message.
  • FIG. 13 is a message flow diagram showing an IMS network user registration information management method in accordance with an embodiment of the present invention.
  • the URDB is built into the S-CSCF, and the AS queries the user home network information through the S-CSCF with the built-in URDB.
  • the message flow includes the following steps:
  • Step S1302 The UE sends a registration request, such as a REGISTER message, to the P-CSCF.
  • the registration request carries terminal capability information of the UE.
  • Step S1304 The P-CSCF uses the DNS protocol to parse the home network address in the REGISTER message, obtains the address of the home network I-CSCF, and forwards the REGISTER message to the I-CSCF of the user home network.
  • Step S1306 The I-CSCF of the user home network sends a UAR message to the HSS to query the user registration status.
  • Step S1308 The HSS returns a UAA message to the I-CSCF, where the UAA message carries the address of the S-CSCF assigned to the user, and obtains the address of the S-CSCF assigned to the user.
  • Step S1310 The I-CSCF sends a REGISTER message to the S-CSCF assigned to the user.
  • Step S1312 The S-CSCF assigned to the user finds that the user is the first registration, and sends a MAR message to the HSS to obtain an authentication set from the HSS.
  • Step S1314 The HSS queries the authentication information of the user, such as an authentication vector, and returns the information to the S-CSCF through the MAA message.
  • Step S1316 The S-CSCF selects an authentication vector from the received authentication information, and sends an authentication challenge message to the UE to the I-CSCF, such as a 401 message.
  • Step S1318 The I-CSCF forwards the 401 message to the P-CSCF by the original path.
  • Step S1320 The P-CSCF forwards the 401 message to the UE.
  • Step S1322 The UE calculates an authentication response, re-initiates the registration process, and sends a REGISTER message to the P-CSCF.
  • Step S1324 The P-CSCF uses the DNS protocol to parse the home network address in the REGISTER message to obtain the address of the home network I-CSCF of the user.
  • Step S1326 The user's home network I-CSCF sends a UAR message to the HSS to
  • Step S1328 The HSS returns a UAA message to the I-CSCF, which carries the address of the S-CSCF assigned to the user.
  • Step S1330 The I-CSCF sends a REGISTER message to the io S-CSCF assigned to the user.
  • Step S1332 The S-CSCF checks the authentication response provided by the UE in the REGISTER message. If the match is successful, the authentication succeeds.
  • the S-CSCF sends a SAR message to the HSS to update the registration information of the HSS and requests to download the subscription data of the user. .
  • the S-CSCF also saves the user's registration information to the local U DB.
  • Step S1334 The HSS returns the user's subscription data to the SAA message.
  • Step S1336-S1340 The S-CSCF returns a registration success confirmation message by the original path, such as a '200 OK message to the UE, and the 200 OK message arrives at the UE through the I-CSCF and the P-CSCF in sequence.
  • Step S1342-S1346 The UE is built in through the P-CSCF and I-CSCF in turn.
  • the URDB's S-CSCF sends a Subscribe message to subscribe to the user's registration status. ;
  • Step S1348-S1352 The S-CSCF returns a success confirmation message, such as a 200 OK message, to the UE through the I-CSCF and the P-CSCF.
  • Step S1354 The AS sends a Subscribe message to the S-CSCF with the built-in UR B. To subscribe to the user's registration information.
  • Step S1356 The S-CSCF with the built-in URDB returns a 200 OK message to the AS to confirm the AS subscription request.
  • Step S1358 The S-CSCF with the built-in URDB sends a notification (Notify) message to notify the AS of the registration information of the user;
  • Step S1360 The AS returns a 200 OK message to the S-CSCF to confirm the notification message. From the above description, it can be seen that the following technical effects are achieved in the embodiment of the present invention: Since the URDB is created in the embodiment of the present invention, it is used for communicating with the IMS network to manage more business information of the tenant, and realized The saving and querying of the information solves the problem that the current AS or the user cannot obtain the user-related registration information.

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Abstract

L'invention porte sur un procédé qui permet de fournir des informations utilisateur, lequel procédé s'applique à un réseau de sous-système Internet multimédia ('internet multimedia subsystem' ou IMS) et fait appel à une entité fonction destinée à fournir des informations d'enregistrement utilisateur. Le procédé de l'invention fonctionne de la manière suivante: lorsqu'un utilisateur s'enregistre sur le réseau, l'entité fonction détermine quel dispositif correspond aux informations d'enregistrement utilisateur, l'entité fonction obtient les informations d'enregistrement utilisateur du dispositif déterminé et l'entité fonction fournit les informations d'enregistrement utilisateur. L'entité fonction peut fournir les informations d'enregistrement utilisateur au serveur d'applications ou à une autre entité de réseau.
PCT/CN2006/003821 2005-12-31 2006-12-31 Procédé, système, appareil et entité fonction de contrôle permettant de fournir des informations utilisateur WO2007076722A1 (fr)

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CN2005101378225A CN1992719B (zh) 2005-12-31 2005-12-31 一种提供接入位置信息的方法
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CN 200610083171 CN1968138A (zh) 2006-06-07 2006-06-07 Ims网络用户注册信息的管理方法和装置
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