WO2007012269A1 - Procede permettant d'enregistrer un utilisateur et d'assurer la continuite d'un appel dans un terminal et systeme multimedia ip - Google Patents

Procede permettant d'enregistrer un utilisateur et d'assurer la continuite d'un appel dans un terminal et systeme multimedia ip Download PDF

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Publication number
WO2007012269A1
WO2007012269A1 PCT/CN2006/001833 CN2006001833W WO2007012269A1 WO 2007012269 A1 WO2007012269 A1 WO 2007012269A1 CN 2006001833 W CN2006001833 W CN 2006001833W WO 2007012269 A1 WO2007012269 A1 WO 2007012269A1
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WIPO (PCT)
Prior art keywords
identifier
cscf
registration
address
user
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PCT/CN2006/001833
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English (en)
Chinese (zh)
Inventor
Hui Li
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Huawei Technologies Co., Ltd.
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Publication of WO2007012269A1 publication Critical patent/WO2007012269A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4535—Network directories; Name-to-address mapping using an address exchange platform which sets up a session between two nodes, e.g. rendezvous servers, session initiation protocols [SIP] registrars or H.323 gatekeepers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4557—Directories for hybrid networks, e.g. including telephone numbers
    • 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
    • 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
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • 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 a 3G wireless network, and more particularly to a method for user registration and session connection in an IP multimedia terminal and system. Background technique
  • the IP Multimedia Subsystem is a subsystem that is superimposed on the packet network by the 3rd Generation Mobile Communications Standardization Partnership Project (3GPP).
  • the IMS uses a packet domain as a bearer channel for its control signaling and media transmission, and introduces a Session Initiation Protocol (SIP) as a service control protocol.
  • SIP Session Initiation Protocol
  • the 3GPP in order to complete the registration function of the user (UE) and the service of the calling party and the called party, the 3GPP defines two public identities:
  • IMPU Public User Identity
  • the user communicates using the IMPU.
  • Each IMS user has one or more IMPUs.
  • the IMPU has a Session Initiation Protocol Universal Resource Identity (SIP URI) format or an E.164 format, both representations.
  • SIP URI is sip:tom@example.com
  • E.164 is 13912345678.
  • the IMPU is initially stored in the UE IMS Subscriber Identity Module (ISIM) and the HSS.
  • ISIM IMS Subscriber Identity Module
  • PSI Public Service Identity
  • SIP URI SIP URI or E.164 format, for example: sip:conference@examplenetwork.com 0
  • the 3GPP specifies that the SIP URI is the basic identifier of the IMS, that is, the IMS user or the service must have the SIP URI identifier. According to this, the IMS uses the DNS URI for the SIP URI and obtains the network address for routing.
  • 3GPP introduces the E.164 identity by means of implicit registration. But In 3GPP, the basic identifier is the mandatory identifier, so the user must have the SIP URI identifier, but there is no E.164 identifier.
  • the user initiates a registration request using the SIP URI identifier in the IMPU, and sends the registration request to the P-CSCF;
  • the P-CSCF performs DNS protocol resolution on the home network address in the registration request, obtains an I-CSCF address in the user's home network, and forwards the registration request to the I-CSCF;
  • the I-CSCF queries the HSS for the user registration status, obtains the address of the S-CSCF serving the user according to the information returned by the HSS, and sends the registration message to the S-CSCF;
  • the S-CSCF queries the HSS and obtains the user's authentication information, and then initiates an authentication challenge (401 Challenge) to the user;
  • the user calculates the authentication response and re-initiates the registration process. If the S-CSCF passes the authentication, it returns a successful confirmation and completes the registration process.
  • the session connection of the IMS user is divided into the connection in the home network of the calling user.
  • the process is shown in FIG. 2, and the connection in the home network of the called user is shown in FIG. 3, which can be seen from the above two figures.
  • the following steps are as follows:
  • the user initiates an implicit session request using the SIP URI identifier in the IMPU, and sends the session request to the P-CSCF;
  • the P-CSCF forwards the session request to the S-CSCF according to the path saved by the user when registering;
  • the S-CSCF performs ENUM resolution on the called E.164 identifier. If the parsing fails, the called party is considered to be a PS N/PMN user, and the session request is forwarded to the BGCF.
  • the BGCF queries the internal or external routing data, obtains the MGCF address, and forwards the request to the MGCF.
  • the MGCF forwards the session request to the PSTN/PMN to which the called user belongs.
  • the called party is an IMS user, obtains the called SIP URI according to the address parsed by ENUM, performs DNS resolution on the SIP URI, obtains the I-CSCF address to which the called user belongs, and then forwards the session. Request to the I-CSCF. -I-CSCF to the HSS to query the called user location information, and obtain the address of the S-CSCF that provides the service to the called user. Thereafter, the session request is forwarded to the S-CSCF. The connection is completed by the S-CSCF.
  • the traditional fixed terminal adopts the E.164 numbering method, that is, the number is used as the numbering method of the telephone number.
  • the SIP URI identifier is used as the basic identifier of the user or service.
  • the E.164 identification scheme is provided (implicit mode)
  • the E.164 identifier is an optional identifier that is mainly used in the case of IMS and PSTN/PLMN interworking.
  • the IMS standard when the IMS network supports the fixed network user connection with the SIP URI as the basic identifier, there may be number conversion and interworking problems, and it is more complicated to meet the traditional user terminal and user habits. Summary of the invention
  • the present invention provides a method for IMS user registration, which is used to solve the problem that the prior art only provides the SIP URI identifier as the basic identifier to initiate registration, the user has no choice, and the implementation is complicated to meet the traditional user terminal and user habits. problem.
  • the present invention also provides a method for IMS session connection, which solves the problem that the prior art may have a code conversion and interworking problem, and requires ENUM parsing and DNS parsing in the connection process, so that the connection is complicated.
  • the present invention provides an IMS terminal.
  • the registration method of the present invention includes the steps of:
  • the user initiates a registration request with the E.164 identifier as the basic identifier
  • the IMS terminal converts the E.164 identifier into a registration identifier conforming to the SIP protocol, and adds the registration identifier to the registration request message;
  • the network device in the IMS network completes authentication and registration according to the registration request message.
  • the step C includes the following steps:
  • the proxy call session control function acquires an address of the query call session control function entity (I-CSCF) in the home network of the IMS terminal, and sends the registration request message to the I-CSCF;
  • the I-CSCF obtains an address of a serving call session control function entity (S-CSCF) to which the IMS terminal belongs, and sends the registration request message to the S-CSCF;
  • the S-CSCF obtains authentication information corresponding to the user, and completes authentication and registration.
  • the registration identifier is a Session Initiation Protocol Universal Resource Identity (SIP URI).
  • SIP URI Session Initiation Protocol Universal Resource Identity
  • the domain name of E.164 is converted into a SIP URI format identifier according to the tel format identifier converted to the SIP URI format identifier, where the translated SIP URI identifier is named as the user's home network domain name.
  • the P-CSCF obtains the home network address of the IMS terminal from the header field of the registration request message, and performs a domain name resolution protocol (DNS) on the address to obtain an I-CSCF address in the home network of the IMS terminal.
  • the I-CSCF restores the E.164, and converts the E.164 into a TEL URI format for obtaining an address of the S-CSCF to which the IMS terminal belongs from the home subscription subscriber server (HSS).
  • HSS home subscription subscriber server
  • the S-CSCF restores the E.164, and converts the E.164 into the TEL U1 format for obtaining the user's authentication information from the HSS.
  • the I-CSCF in the step C2 directly queries the registration identifier.
  • the S-CSCF directly queries the HSS for the user's rights information with the registration identifier.
  • the registration identifier is a TEL URL
  • the P-CSCF obtains the home network address of the IMS terminal from the header field of the registration request message, and performs DNS protocol resolution on the address to obtain the I-CSCF address in the home network of the IMS terminal.
  • the I-CSCF obtains the address of the S-CSCF to which the IMS terminal belongs from the HSS by using the registration identifier.
  • the S-CSCF directly obtains the user's authentication information from the HSS by using the registration identifier.
  • the method for session connection of the present invention comprises the following steps:
  • the IMS calling terminal initiates a session request with the called E.164 identifier; in the calling terminal home network, converts the E.164 identifier into a universal resource format identifier (URI), and obtains the URI by the URI
  • URI universal resource format identifier
  • the called terminal belongs to the next hop address in the network; sends the session request to the next hop address, and completes the connection in the called terminal's home network.
  • E.164 Identity Translation Protocol (ENUM) server set with the E.164 converted SIP URI Querying the SIP URI corresponding to the called party; performing DNS resolution on the SIP URI to obtain the next hop address.
  • ENUM E.164 Identity Translation Protocol
  • Converting the E.164 identifier into a URI, and obtaining the next hop address in the home network of the called terminal by using the URI is that the S-CSCF to which the calling terminal belongs converts the called E.164 identifier into a TEL URI, and The TEL UI is queried in the database for the corresponding next hop address.
  • the database is an internal routing database, or an external routing database.
  • next hop address is an I-CSCF address
  • the connection in the home network of the called terminal is completed, including the following steps:
  • the I-CSCF queries the HSS for location information of the called terminal;
  • the I-CSCF forwards the session request to the S-CSCF, and the S-CSCF completes the connection. If the acquired next hop address is the address of the edge gateway control function entity (BGCF), completing the connection in the called terminal home network includes the following steps:
  • MGCF Media Gateway Control Function Entity
  • the session request is sent by the MGCF to the Public Telephone Service Network (PSTN) or the Public Land Mobile Network (PLMN) and the connection is completed.
  • PSTN Public Telephone Service Network
  • PLMN Public Land Mobile Network
  • An IMS terminal of the present invention includes: a terminal body;
  • the conversion module is disposed inside the terminal body and configured to convert the E.164 identifier into a registration identifier conforming to the SIP protocol.
  • the invention uses the E.164 identifier as the basic identifier of the IP multimedia subsystem.
  • the registration process is initiated with the basic identifier.
  • the present invention converts E.164 into a registration identifier in a TEL URI format or a SIP URI format, and adds the registration identifier to the registration request The registration is initiated in the message. In the registration process, it is necessary to restore the E.164 place to reversely convert the registration mark, realize the rights of the woman and complete the registration.
  • the user can not only initiate registration by using the SIP of the prior art as the basic identifier, but also initiate registration by using the E.164 as the basic identifier, which increases the user's selectivity, thereby better supporting the traditional user terminal and the user's habit.
  • the invention uses the E.164 identifier as the basic identifier of the IP multimedia subsystem.
  • the called E.164 identifier is used to query the address of the corresponding I-CSCF to which the called user belongs, or the E.164 identifier is used to query the address of the BGCF to which the called user belongs, and then according to the address of the BGCF to which the called user belongs.
  • the queried address connects the session to the corresponding network element entity, and then completes the connection in the called side network to implement session connection.
  • the ENUM parsing can be avoided in the connection process, and the connection process is completed; the next hop address is obtained through the query mode, and the number conversion is avoided in the connection process, thereby better solving the number conversion and interworking problems.
  • FIG. 2 is a flow chart of session connection signaling in a prior art calling home network
  • 3 is a flow chart of the connection signaling in the prior art called home network
  • Figure 5 is a flow chart showing the steps of the registration method of the present invention.
  • FIG. 7 is a flow chart of steps of a session connection method according to the present invention.
  • FIG. 8 is a flow chart of steps of another session connection method according to the present invention. detailed description
  • an IP multimedia terminal including:
  • the conversion module is disposed inside the terminal body and configured to convert the E.164 identifier into a registration identifier conforming to the SIP protocol.
  • the present invention provides a method for user registration in an IP multimedia subsystem. Referring to Figure 4 and Figure 5, the following steps are included:
  • the user initiates a registration request with the E.164 identifier as the basic identifier.
  • the IMS terminal converts the E.164 identifier into an identifier of a SIP URI format, and adds the identifier of the SIP URI format to the registration request message.
  • the Proxy Call Session Control Function (P-CSCF) entity obtains an address of an Inquiring Call Session Control Function Entity (I-CSCF) in the home network of the IMS terminal.
  • I-CSCF Inquiring Call Session Control Function Entity
  • the I-CSCF obtains an address of a serving call session control function entity (S-CSCF) to which the IMS terminal belongs.
  • S-CSCF serving call session control function entity
  • the S-CSCF obtains authentication information corresponding to the user, and completes authentication and registration.
  • Example 1 The database in the Home Subscriber Server (HSS) is not modified, and the E.164 standard is converted into the identifier of the Session Initiation Protocol Common Resource (SIP U I ) format to complete the authentication and registration.
  • SIP U I Session Initiation Protocol Common Resource
  • the user initiates a registration request by using the E.164 identifier as the basic identifier.
  • the E.164 identifier is defined as the basic identifier.
  • the user can initiate a registration request to the network side by using the E.164 identifier as the basic identifier.
  • the IMS terminal converts the E.164 identifier into an identifier of a SIP URI format, and adds the identifier of the SIP URI format to the registration request message.
  • the IMS terminal uses the conversion module to add a domain name for identifying E.164 after the E.164 identification.
  • the E.164 number is +46-8-9761234.
  • the identifier of the converted SIP UI format is sip: 4689761234@el64.3gppnetwork.org.
  • the domain name el64. 3gppnetwork.org is used to indicate that this is an E.164 number.
  • the IMS terminal uses the conversion module to convert the identifier of the tel format into the identifier of the SIP URI format, and converts the E.164 identifier into an identifier of the SIP URI format, where the domain name of the converted SIP URI identifier is The home network domain name of the user.
  • the E.164 number is +46-8-9761234.
  • the SIP URI format identifier is then populated into the registration message header field to initiate a registration request.
  • the Proxy Call Session Control Function (P-CSCF) entity obtains an address of an Incoming Call Session Control Function Entity (I-CSCF) in the home network of the IMS terminal.
  • I-CSCF Incoming Call Session Control Function Entity
  • the P-CSCF After receiving the registration request message, the P-CSCF obtains the home network address of the IMS terminal from the header field of the registration request message, and performs DNS resolution on the home network address to obtain the home network of the IMS terminal. The address of the I-CSCF.
  • the I-CSCF acquires an address of a serving call session control function entity (S-CSCF) to which the IMS terminal belongs.
  • S-CSCF serving call session control function entity
  • the I-CSCF After receiving the registration request message, the I-CSCF obtains the identifier of the SIP URI format, and restores the identifier of the SIP URI format to an E.164 identifier (the restoration method is opposite to the forwarding method); The E.164 is converted to the TEL UI format identifier (for the conversion method, see Protocol: RFC2806).
  • the address of the S-CSCF to which the IMS terminal belongs can be queried in the Home Subscriber Server (HSS) using the obtained TEL U I format identifier.
  • HSS Home Subscriber Server
  • the S-CSCF obtains authentication information corresponding to the user, and completes authentication and registration.
  • the S-CSCF After receiving the registration request message, the S-CSCF obtains the identifier of the SIP URI format, and restores the identifier of the SIP URI format to an E.164 identifier (the restoration method is opposite to the forwarding method); The E.104 is converted to the identifier of the TEL URI format (for the conversion method, see Protocol: RFC2806).
  • the user corresponding to the TEL URI identifier can be queried in the HSS by using the obtained TEL URI identifier.
  • the authentication information that is, the user right information corresponding to the E.164 identifier of the user is queried. After that, the user registration is completed according to the flow of the prior art and the query method of this example.
  • Example 2 Modify the database in the HSS and convert the E.164 identifier into the identifier of the SIP URI format to complete the authentication and registration.
  • the specific processing steps of this example are as follows:
  • the user initiates a registration request by using the E.164 identifier as the basic identifier.
  • E.164 is identified as the subordinate identifier. To implement the present invention, the E.164 identifier is also defined as the basic identifier.
  • the user can initiate a registration request to the network side by using the E.164 identifier as the basic identifier.
  • the IMS terminal converts the E.164 identifier into an identifier of a SIP URI format, and adds the identifier of the SIP URI format to the registration request message.
  • the IMS terminal uses the conversion module to add a domain name for identifying E.164 after the E.164 identification.
  • the R164 number is +46-8-9761234.
  • the converted SIP URI format is identified as sip: 4689761234@el64.3gppnetwork.org.
  • the domain name el64. 3gppnetwork.org is used to indicate that this is an E.164 number.
  • the IMS terminal uses the conversion module to convert the identifier of the tel format into the identifier of the SIP URI format, and converts the E.164 identifier into an identifier of the SIP URI format, where the domain name of the converted SIP URI identifier is The home network domain name of the user.
  • the E.164 number is +46-8-9761234.
  • the SIP URI format identifier is then populated into the registration message header field to initiate a registration request.
  • the P-CSCF obtains an address of the I-CSCF in the home network of the IMS terminal.
  • the P-CSCF After receiving the registration request message, the P-CSCF obtains the home network address of the IMS terminal from the header field of the registration request message, and performs DNS resolution on the home network address to obtain the home network of the IMS terminal. The address of the I-CSCF.
  • the I-CSCF obtains an address of an S-CSCF to which the IMS terminal belongs. Since the prior art only supports querying information to the HSS by using the original SIP URI identifier and the TELURI identifier of the user, this example first sets the TELURI identifier query supported by the prior art in the address information database of the HSS and the subscription database, indirectly by E. 164 converted SIP URI query related information.
  • the I-CSCF After receiving the registration request message, the I-CSCF obtains the identifier of the SIP URI format, and directly queries the HSS for the IMS terminal's belonging S by using the identifier of the SIP URI format. - The address of the CSCF.
  • the S-CSCF obtains the authentication information corresponding to the user, and completes the authentication and registration.
  • the S-CSCF After receiving the registration request message, the S-CSCF obtains the identifier of the SIP URI format, and directly queries the HSS for the authentication information of the corresponding user by using the identifier of the SIP URI format. That is, the authentication information of the user corresponding to the E.164 identifier of the user is queried.
  • Example 3 Convert the E.164 identifier into an identifier in the TEL URI format to complete authentication and registration.
  • the specific processing steps of this example are as follows:
  • the user initiates a registration request by using the E.164 identifier as the basic identifier.
  • E.164 is identified as the subordinate identifier. To implement the present invention, the E.164 identifier is also defined as the basic identifier.
  • the user can initiate a registration request to the network side by using the E.164 identifier as the basic identifier.
  • the IMS terminal converts the E.164 identifier into an identifier of a TEL URI format, and adds the identifier of the SIP URI format to the registration request message. (For the conversion method, see the agreement: RFC2806)
  • the P-CSCF obtains an address of the I-CSCF in the home network of the IMS terminal.
  • the P-CSCF After receiving the registration request message, the P-CSCF obtains the home network address of the IMS terminal from the header field of the registration request message, and performs DNS resolution on the home network address to obtain the home network of the IMS terminal. The address of the I-CSCF. 5304. Send a registration request message to the I-CSCF.
  • the I-CSCF obtains an address of an S-CSCF to which the IMS terminal belongs.
  • the I-CSCF Since the prior art supports the information in the TEL URI format to query the information of the HSS, the I-CSCF directly obtains the address of the S-CSCF to which the IMS terminal belongs from the HSS by using the identifier in the TEL URI format.
  • the S-CSCF obtains the authentication information corresponding to the user, and completes the authentication and registration.
  • the S-CSCF obtains the authentication information of the corresponding user from the HSS by using the identifier of the TEL URI format, that is, the S-CSCF obtains the authentication information corresponding to the E.164 identifier.
  • User authentication information
  • the present invention provides a method of session connection in an IMS system.
  • Example 4 Setting the E.164-converted SIP URI format identifier in the ENUM server to obtain the identifier of the corresponding SIP URI format when the session is initiated by E.164, and further obtain the next hop address through DNS decryption. , to complete the connection.
  • the specific processing steps of this example are as follows:
  • the IMS calling terminal initiates a session request with the called E.164.
  • the P-CSCF After receiving the session request message, the P-CSCF forwards the session request message to the S-CSCF in the calling home network according to the path saved by the user when registering.
  • the S-CSCF in the home network of the calling terminal corresponds to the identifier of the SIP URI format.
  • the service provider first sets the E.164 identity converted SIP of each IMS user in the ENUM server.
  • the identifier of the URI format is the identifier of the URI format.
  • the E.164 number is +46-8-9761234.
  • the converted SIP UI format is identified as sip: 4689761234@el64.3gppnetwork.org.
  • the domain name el64. 3gppnetwork.org is used to indicate that this is an E.164 number.
  • the E.164 identifier of the called user is used to query the ENUM server for the identifier of the corresponding SIP URI format.
  • the called user is considered to be an IMS user, and the process proceeds to step S404;
  • the called party is considered to be a PSTN or PLMN user, and proceeds to step S406.
  • the I-CSCF in the called home network converts the E.164 identifier in the session request message into an identifier in the TEL URI format (see the protocol: KFC2806 for the conversion method), and queries the HSS with the identifier in the TEL URI format.
  • the I-CSCF forwards the session request to the S-CSCF, and the S-CSCF completes the connection.
  • the connection is completed in the called PSTN or PLMN network.
  • the BGCF After receiving the session request message, the BGCF forwards the session request message to a media gateway control function entity (MGCF);
  • MGCF media gateway control function entity
  • the session request message is sent by the MGCF to the PSTN or PLMN and completed in accordance with the prior art.
  • Example 5 Convert the E.164 identifier into an identifier in the TEL URI format, which is used to query the next hop address and complete the connection.
  • the specific processing steps of this example are as follows:
  • the S50K IMS calling terminal initiates a session request with the called E.164 identity.
  • the P-CSCF After receiving the session request message, the P-CSCF forwards the session request message to the S-CSCF in the calling home network according to the path saved by the user when registering.
  • the S-CSCF in the calling home network converts the E.164 identifier in the tongue request message into an identifier in the TEL URI format.
  • the database is an internal routing database, or an external routing database. If the next hop address in the called home network obtained by the query is an I-CSCF address, that is, the called terminal is an IMS terminal, then the process proceeds to step S505;
  • the acquired next hop address in the called home network is the address of the edge gateway control function entity (BGCF), that is, the called terminal is a public telephone service network (PSTN) terminal or a public land mobile network (PLMN) terminal, then Proceed to step S506.
  • BGCF edge gateway control function entity
  • PSTN public telephone service network
  • PLMN public land mobile network
  • the I-CSCF in the called home network converts the E.164 identifier in the session request message into an identifier in the TEL URI format, and queries the HSS for the location information of the called terminal in the TEL URI format identifier;
  • the I-CSCF forwards the session request to the S-CSCF, and the S-CSCF completes the connection.
  • the connection is completed in the called PSTN or PLMN network.
  • the BGCF After receiving the session request message, the BGCF forwards the session request message to a media gateway control function entity (MGCF);
  • MGCF media gateway control function entity
  • the session request message is sent by the MGCF to the PSTN or PLMN and completed in accordance with the prior art.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé d'enregistrement d'utilisateur dans un sous-système multimédia IP, destiné à résoudre les problèmes liés à la technique antérieure, selon laquelle on dispose uniquement d'un procédé de lancement d'enregistrement considérant l'identificateur URI SIP comme l'identificateur essentiel, l'utilisateur n'a pas la possibilité d'effectuer une sélection et la mise en oeuvre est complexe pour satisfaire aux exigences du terminal utilisateur conventionnel et aux habitudes de l'utilisateur. L'invention comprend les étapes suivantes: l'utilisateur lance l'enregistrement en considérant l'identificateur E.164 comme l'identificateur essentiel; le terminal IMS convertit l'identificateur E.164 en identificateur d'enregistrement conformément au protocole SIP et ajoute l'identificateur d'enregistrement à un message de demande d'enregistrement; le dispositif réseau situé dans le réseau IMS met en oeuvre l'authentification et l'enregistrement conformément audit message de demande d'enregistrement.
PCT/CN2006/001833 2005-07-29 2006-07-25 Procede permettant d'enregistrer un utilisateur et d'assurer la continuite d'un appel dans un terminal et systeme multimedia ip WO2007012269A1 (fr)

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CNB2005100887482A CN100450292C (zh) 2005-07-29 2005-07-29 一种ip多媒体终端和系统中用户注册及会话接续的方法

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CN101212522B (zh) * 2006-12-29 2010-06-02 华为技术有限公司 关联会话的方法、装置及系统
CN101098242B (zh) * 2007-05-28 2010-12-08 华为技术有限公司 一种网络连接信息的获取方法以及网络边界实体
CN101330638B (zh) * 2007-06-26 2012-05-23 中兴通讯股份有限公司 一种会话控制路径与承载控制路径的关联方法
JP4983924B2 (ja) * 2007-09-12 2012-07-25 日本電気株式会社 通信システム、通信最適化装置並びにそれらに用いる通信網確立方法
CN101483581A (zh) * 2008-01-09 2009-07-15 华为技术有限公司 一种访问非sip资源的方法、系统和设备
CN103618739B (zh) * 2013-12-09 2017-02-15 中国联合网络通信集团有限公司 一种增强的s‑cscf服务器的数据处理方法及装置
CN106937264B (zh) * 2015-12-29 2020-06-02 中国电信股份有限公司 VoLTE用户呼叫寻址的方法、系统以及HSS
CN108881118B (zh) * 2017-05-12 2020-07-17 大唐移动通信设备有限公司 一种ims级联组网方法及设备
CN108521427A (zh) * 2018-04-19 2018-09-11 济南浪潮高新科技投资发展有限公司 基于异构计算的i-cscf服务器及方法

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