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WO2006094433A1 - Sous-systeme multimedia ip pour integration d'acces fixe et procede associe - Google Patents

Sous-systeme multimedia ip pour integration d'acces fixe et procede associe Download PDF

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Publication number
WO2006094433A1
WO2006094433A1 PCT/CN2005/000284 CN2005000284W WO2006094433A1 WO 2006094433 A1 WO2006094433 A1 WO 2006094433A1 CN 2005000284 W CN2005000284 W CN 2005000284W WO 2006094433 A1 WO2006094433 A1 WO 2006094433A1
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WO
WIPO (PCT)
Prior art keywords
call session
fixed
user
session controller
cscf
Prior art date
Application number
PCT/CN2005/000284
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English (en)
Chinese (zh)
Inventor
Pei Lin Yang
Jun Hong
Xiao Kun Xu
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to PCT/CN2005/000284 priority Critical patent/WO2006094433A1/fr
Publication of WO2006094433A1 publication Critical patent/WO2006094433A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access

Definitions

  • IP name media subsystem integrating fixed access and implementation method thereof
  • the present invention relates to an IP multimedia system that integrates a fixed terminal access method and an implementation method thereof under the IP Multimedia Subsystem (IMS) architecture.
  • IMS IP Multimedia Subsystem
  • the switching systems in the current telecommunications field are basically concentrated on fixed network switching systems and mobile network switching systems. They appear as a stand-alone system in the operating environment, either supporting only fixed switching networks or only mobile switching.
  • the internet At present, many operators at home and abroad are full-service operators. They operate both mobile and fixed services. For them, they not only need to spend money to build fixed networks and mobile networks, but also networks that use fixed networks and mobile networks. Manage maintenance costs. Therefore, a core network system that supports both fixed access mode and mobile access mode is proposed, which not only reduces the investment and construction cost of the operator, but also reduces the network management and maintenance cost of the network.
  • IMS is a subsystem proposed by 3GPP to superimpose IP multimedia services on the GPRS network. As shown in Figure 1, its core feature is the use of the SIP protocol as a call control protocol and the independence of the access network. Although IMS realizes the independence of access network, IMS only supports 2G and 3G mobile access methods, and cannot support fixed access methods. Under the development trend of network convergence, some working organizations and operators at home and abroad And equipment vendors are actively researching IMS-based network convergence solutions to provide fixed access methods.
  • the object of the present invention is to provide an IP multimedia subsystem with integrated fixed access and an implementation method thereof, which are based on the IMS architecture and support fixed terminal access; the access modes of the fixed terminal mainly include xDSL, HFC, LAN, and wire connection.
  • the fixed terminal users are connected to the IP network, thereby accessing the IP multimedia subsystem, and implementing the IMS-based architecture to support the integration of the fixed network and the mobile network.
  • the technical solution of the present invention is: an IP multimedia subsystem that integrates fixed access, the system includes at least one call session controller; the call session controller is connected to a home subscriber server, and an egress gateway controller, A media gateway control confirmation
  • the call session controller is connected to the public telephone network through the egress gateway controller and the media gateway controller; the call session controller is further connected to the radio access network through a proxy call session controller;
  • the system further includes a fixed access proxy call session controller, connecting the call session controller and the fixed access network, and providing a proxy call session control function for a fixed access fixed user.
  • the fixed access proxy call session controller further includes:
  • a message receiving processing module comprising a message receiving preprocessing module and a user registration processing module and a user call processing module;
  • a message sending processing module receiving the message from the user or the call session controller and processing the message to the call session controller or the user through the message sending processing module.
  • the message receiving pre-processing module discriminates the received message, and if it is a registration message of a non-USIM/SIM card user, the non-USIM/SIM card registration user pre-processing module obtains the non-USIM
  • the information about the user of the SIM card is adjusted to the message of the USIM/SIM card user and sent to the user registration module for verification of the user identity; if the message receiving preprocessing module identifies the received message as USIM
  • the registration message of the SIM card user directly sends a message to the user registration processing module, and the user registration processing module performs verification of the user identity; if it is a non-registered message, the user directly calls the processing module to the message.
  • the message conversion, billing CDR, resource allocation and the like related to the call agent are processed and sent to the message sending processing module.
  • the system wherein the fixed access mode comprises xDSL, HFC, LAN, PLC or FTTx.
  • a method for implementing an IP multimedia subsystem that integrates fixed access includes:
  • a fixed-access proxy call session controller is added to provide fixed terminal user access in the IP multimedia subsystem, and the IP multimedia subsystem is provided for the fixed user. Multimedia service.
  • the method further includes: the fixed access proxy call session controller correlates the registration request initiated by the fixed user and forwards the request to the user's home query call session controller for processing the message initiated by the fixed user and Forwarding it to the call session controller; forwarding the request and response sent from the call session controller to a fixed user.
  • the method further includes: an interface associated with the fixed-access proxy call session controller including an interface with the interrogating call session controller, the serving call session controller, and the fixed user, the interrogating call session controller
  • the interface between the two is used to send the fixed user-initiated registration signaling to the interrogating call session controller after processing for the fixed user characteristic, and forward the response sent by the interrogating call session controller to the fixed user, and simultaneously Partial fixed user initiated session signaling forwards to the interrogating call session controller, and forwards the session signaling sent by the interrogating call session controller to the fixed user
  • the interface with the serving call session controller is The session signaling sent by the fixed user is forwarded to the serving call session controller, and the session signaling sent by the serving call session controller is forwarded to the fixed user.
  • the IP multimedia subsystem of the fusion fixed access and the implementation method thereof provide a new fixed access proxy call session controller for the fixed access mode, which not only realizes the access of the fixed terminal Moreover, the difference between mobile and fixed access is abandoned at the I-CSCF and the S-CSCF, and the real convergence of the IMS architecture and the mobile network is realized. Therefore, the fusion system of the present invention not only facilitates the use of the user. And improve the market competitiveness of telecom operators.
  • 1 is a basic architecture of a 3GPP IMS core control layer of the prior art
  • FIG. 2 is a schematic diagram showing the functional structure of the fixed-access proxy call session controller FP-CSCF according to the present invention
  • FIG. 3 is an IMS architecture supporting the fixed access IP multimedia subsystem and its implementation method for supporting fixed access according to the present invention
  • FIG. 4 is a schematic diagram showing an example of a system and method according to the present invention for supporting a fixed xDSL access method based on a 3GPP architecture;
  • FIG. 5 is a schematic diagram showing an example of a system and method according to the present invention that supports a fixed HFC access mode based on a 3GPP architecture. detailed description
  • the core multimedia invention of the fusion fixed access and the implementation method thereof are directed to a core network element entity of the IMS architecture, and a new logical network element entity is provided.
  • the controller FP-CSCF (Fixed Proxy Call Session Control Function, hereinafter referred to as FP-CSCF) provides proxy call session control for fixed users such as xDSL/HFC/LAN/PLC/FTTx.
  • the system of the present invention supports the architecture of the mobile terminal and the fixed network in the fixed terminal access mode.
  • the call session controller CSCF Call Session Control Function, CSCF
  • the media gateway controller MGCF are mainly used in the current IMS architecture.
  • Media Gateway Control Function hereinafter referred to as: MGCF:
  • Export Gateway Controller BGCF Bitout Gateway Control Function, hereinafter referred to as BGCF
  • BGCF Export Gateway Controller
  • HSS Home Subscriber Server
  • SLF Subscription Locator Function
  • the control controller FP-CSCF, the fixed access network, and the fixed terminal are composed. As shown in FIG. 3, the mobile user and the fixed terminal user can communicate through the IMS architecture.
  • the P-CSCKProxy Call Session Control Function is the first network element node that the IMS subsystem contacts the mobile user. It is mainly responsible for forwarding the message request and response initiated by the mobile user to the user.
  • Call Session Controller CSCF (Call Session Control Function) forwards the message request and response sent from the CSCF to the mobile user, maintains the Security Association SA between the mobile user and the P-CSCF, and provides the mobile SIP message compression and decompression between the user and P-CSCF and related billing functions.
  • Call Session Controller CSCF Call Session Controller CSCF (Call Session Control Function) forwards the message request and response sent from the CSCF to the mobile user, maintains the Security Association SA between the mobile user and the P-CSCF, and provides the mobile SIP message compression and decompression between the user and P-CSCF and related billing functions.
  • fixed users and mobile users have certain differences in user characteristics, access methods, charging methods, and security methods. In terms of user characteristics, mobile users have SIM
  • the call agent session controller connected to the fixed access will have different processing methods for the call agent session controller connected to the mobile user; Mobile wireless bandwidth is very valuable, so signaling needs to be compressed and decompressed, but for fixed users, the bandwidth is still quite sufficient; from the charging method, there are big differences between mobile users and fixed users, such as mobile users. Both outgoing and outgoing calls require billing, while fixed-user users only have outgoing billing, while incoming calls are not billed. From a security perspective, mobile access and fixed access also differ. Therefore, the present invention proposes a new fixed access proxy call session controller FP-CSCF which is distinguished from the original proxy call session controller P-CSCF of the access mobile terminal, and provides a proxy mode for the fixed user to access.
  • FP-CSCF which is distinguished from the original proxy call session controller P-CSCF of the access mobile terminal, and provides a proxy mode for the fixed user to access.
  • the fixed access proxy call session controller FP-CSCF of the present invention has a functional structure as shown in FIG. 2.
  • the message from the user UE or the CSCF is sent to a message receiving processing module.
  • the message receiving processing module includes a message receiving preprocessing module, and a user registration processing module and a user call processing module.
  • the message processed by the message receiving processing module is sent to the user or the CSCF through a message sending processing module.
  • the message from the user or the CSCF first enters the message receiving pre-processing module of the FP-CSCF, and the message receiving pre-processing module discriminates the received message, if it is a non-USIM/SIM card user
  • the non-USIM/SIM card registration user pre-processing module obtains the information of the non-USIM/SIM card user, adjusts the registration message to the message of the USIM/SIM card user, and sends the message to the user registration module for user identity.
  • Identifying and registering if the message receiving pre-processing module identifies that the received message is a USIM/SIM card registered user, sending a message directly to the user registration processing module, and performing user identity by the user registration processing module Verification; if it is a non-registered message, the call processing module directly converts the message related to the call agent by the user call processing module, The billing bill, the resource allocation, and the like are sent to the message sending processing module.
  • the IP multimedia subsystem of the fusion fixed access method of the present invention and the implementation method thereof support the access mode of the fixed terminal in the IMS architecture, except the network element entities CSCF, MGCF, BGCF and HSS in the original IMS architecture.
  • the network element entity such as SLF
  • it also includes a fixed access proxy call session controller FP-CSCF.
  • the fixed access proxy call session controller FP-CSCF mainly performs the following functions: processing the SIP registration request initiated from the fixed user and forwarding to the I-CSCF to which the user belongs; processing the SIP message initiated by the fixed user and putting it Forward to CSCF, etc.; forward SIP requests and responses sent from CSCF to fixed users.
  • the interfaces related to the fixed-access proxy call session controller FP-CSCF are mainly: FP-CSCF and I-CSCF, FP-CSCF and S-CSCF, FP-CSCF and fixed users.
  • the FP-CSCF is the first network element node that the fixed user contacts the IMS subsystem; the interface between the FP-CSCF and the I-CSCF is sent to the I- as long as the registration signaling initiated by the fixed user is processed for the fixed user characteristics.
  • CSCF forwards the response sent by the I-CSCF to the fixed user, forwards a part of the fixed user-initiated session signaling to the I-CSCF, and forwards the session signaling sent by the I-CSCF to the fixed user.
  • the interface between the FP-CSCF and the S-CSCF is mainly to forward the session signaling sent by the fixed user to the S-CSCF, and forward the session signaling sent by the S-CSCF to the fixed user.
  • the implementation method of the fused and fixed access IP multimedia subsystem of the present invention mainly includes the following steps: First, under the original IMS architecture, the multimedia service of the 3G terminal user can be realized; the second step is to increase the fixed access. After the proxy call session controller FP-CSCF, it can provide fixed terminal user access in the IP multimedia subsystem, and realize the multimedia service function provided by the IP multimedia subsystem for the fixed user.
  • FIG. 4 is a schematic diagram showing an example of a system for supporting the present invention and a method for implementing the same in a WCDMA network supporting a fixed xDSL access method.
  • the fixed terminal (701, 702) is connected to the IMS system by the fixed access proxy call session controller (206) through the DSL access network, and The fixed user provides multimedia services on the IMS system, and finally implements on the IMS subsystem, which not only provides multimedia call control for the mobile terminal, but also achieves integration with the fixed access method.
  • the IP multimedia subsystem implements xDSL access and provides multimedia calls to the connected fixed terminals, according to the example shown in Figure 3, the following describes a mobile subscriber (601) calling xDSL access mode.
  • the typical process of the fixed end user (701) and the typical process of the fixed terminal user (701) in the xDSL access mode calling the PSTN/ISDN network (801), the specific process is as follows:
  • the mobile subscriber (601) and the fixed end user (701) of the xDSL access mode are all registered in the control of the IMS domain supported by the invention.
  • the mobile subscriber (601) performs the call session control via the radio network subsystem RNS (501) and the GGSN (401) and SGSN (402) network elements of the GPRS network and the first network element node that contacts the mobile subscriber with the IMS subsystem.
  • the P-CSCF (203) requests the fixed end user (701) of the xDSL access mode to establish a call;
  • the proxy call session controller P-CSCF (203) forwards the call request to the service call according to the name of the S-CSCF to which the mobile user registration process records.
  • the service call session controller S-CSCF (202) After receiving the call request, the service call session controller S-CSCF (202) processes the service demand of the mobile user (601) and performs destination address analysis, and finds that the destination user is a user under the home domain, and then forwards the call. Requesting an interrogation call session controller I-CSCF (201) to the home domain;
  • the call session controller I-CSCF (201) forwards the call request by querying the home subscriber server HSS (101) to learn that the user is a user to which the service call session controller S-CSCF (200) belongs. To the service call session controller S-CSCF (200);
  • the service call session controller S-CSCF (200) After the service call session controller S-CSCF (200) receives the call request, it finds that the destination user is a user registered by the fixed-access proxy call session controller FP-CSCF (206), and then forwards the call request to Fixed access proxy call session controller FP-CSCF (206);
  • the fixed-access proxy call session controller FP-CSCF (206) forwards the call request to the fixed terminal via the DSDSL access network's DSLAM (301) and DSL Modem (302) according to the registration information of the user (701). 701);
  • the fixed terminal (701) determines the media description information provided by the mobile terminal (601), and returns a response response to the fixed-access proxy call session controller FP ⁇ CSCF (206);
  • the fixed-access proxy call session controller FP-CSCF (206) authorizes related resources for the session and forwards Replying to the service call session controller S-CSCF (200);
  • the proxy call session controller P-CSCF (203) transmits the response response to the rotating user via the GGSN (401) and SGSN (402) network elements of the GPRS network, and the wireless network subsystem RNS (501) (601);
  • the mobile terminal After receiving the response, the mobile terminal (601) determines the media resources required for the session, and returns a response confirmation to the proxy call session controller P-CSCF (203);
  • Proxy call session controller P-CSCF (203) forward response confirmation to service call session controller S-CSCF (202);
  • Serving the call session controller S-CSCF (202) forwards the response confirmation to the inquiry call session controller I-CSCF (201);
  • the fixed-access proxy call session controller FP-CSCF (206) forwards the response to confirm the DSLAM (301) and the DSL Modem (302) of the xDSL access network to the fixed terminal (701);
  • the fixed terminal (701) After receiving the response confirmation, the fixed terminal (701) returns a confirmation confirmation to the fixed-access proxy call session controller FP-CSCF (206), and performs resource reservation;
  • fixed access proxy call session controller FP-CSCF (206) forward confirmation confirmation to the service call session controller S-CSCF (200);
  • Service Call Session Controller S-CSCF (202) Forward Confirmation Confirmation to Proxy Call Session Controller P-CSCF (203);
  • the proxy call session controller P-CSCF (203) passes the GGSN (401) and SGSN (402) network elements of the GPRS network, and the wireless network subsystem RS (501) confirms the confirmation before the transfer.
  • the mobile terminal (601) After receiving the confirmation confirmation, the mobile terminal (601) returns a success message to the proxy call session controller P-CSCF (203);
  • Proxy Call Session Controller P-CSCF (203) Forward Resource Reservation Success Message to Service Call Session Controller S-CSCF (202);
  • service call session controller S-CSCF (200) forward resource reservation success message fixed access proxy call session controller FP-CSCF (206);
  • Fixed access proxy call session controller FP-CSCF (206) forward resource reservation success message via DSDSL access network DSLAM (301) and DSL Modem (302) to fixed terminal (701);
  • the fixed terminal After receiving the initiator resource reservation success message, the fixed terminal reminds the fixed user (701), and sends a receiver resource reservation success message to the fixed-access proxy call session controller FP-CSCF (206);
  • the fixed-access proxy call session controller FP-CSCF (206) forwards the receiver resource reservation success message to the serving call session controller S-CSCF (200);
  • the serving call session controller S-CSCF (200) forwards the receiver resource reservation success message to the interrogating call session controller I-CSCF (201);
  • the proxy call session controller P-CSCF (203) passes the GGSN (401) and SGSN (402) network elements of the GPRS network, and the radio network subsystem RNS (501) forwards the receiver resource reservation success message to the mobile Terminal (601);
  • the fixed terminal (701) sends a temporary response ringing message to the fixed access proxy call session controller FP-CSCF (206);
  • the service call session controller S-CSCF (200) forwards to the inquiry call session controller I-CSCF (201) to temporarily respond to the ringing information;
  • the service call session controller S-CSCF (202) forwards to the proxy call session controller P-CSCF (203) to temporarily respond to the ringing information;
  • the proxy call session controller P-CSCF (203) passes the GGSN (401) and SGSN (402) network elements of the GPRS network, and the radio network subsystem RNS (501) forwards the temporary response ringing information to the mobile terminal ( 601);
  • the mobile terminal After receiving the temporary response ringing information, the mobile terminal (601) prompts the mobile user to remind the destination user;
  • the fixed end user (701) sends a final response to the call request to the fixed access proxy call session controller FP-CSCF (206);
  • Fixed access proxy call session controller FP-CSCF (206) forwards the final response of the call request to the serving call session controller S-CSCF (200);
  • the service call session controller S-CSCF (200) forwards the final response of the call request to the interrogating call session controller I-CSCF (201);
  • the service call session controller S-CSCF (202) forwards the final response of the call request to the proxy call session controller P-CSCF (203);
  • the proxy call session controller P-CSCF (203) passes the GGSN (401) and SGSN (402) network elements of the GPRS network, and the wireless network subsystem RNS (501) forwards the final response of the call request to the mobile user ( 601);
  • the mobile user After receiving the final response of the call request, the mobile user (601) returns a call confirmation message to the proxy call session controller P-CSCF (203);
  • Proxy call session controller P-CSCF (203) Forward call confirmation message to the service call session controller S-CSCF (202);
  • the service call session controller S-CSCF (202) forwards the call confirmation message to the inquiry call session controller I-CSCF (201);
  • Fixed access proxy call session controller FP-CSCF (206) forward call confirmation message via DSDSL access network DSLAM (301) and DSL Modem (302) to fixed terminal (701);
  • the mobile user hangs up and sends an on-hook message via the radio network subsystem RNS (501) and the GGSN (401) and SGSN (402) network elements of the GPRS network to the proxy call session controller P-CSCF. (203);
  • Proxy call session controller P-CSCF (203) forwards the on-hook request to the service call session controller S-CSCF (202);
  • the service call session controller S-CSCF (202) forwards the on-hook request to the inquiry call session controller I-CSCF (201);
  • Service Call Session Controller S-CSCF (200) Forward Call On Request to Fixed Access Proxy Call Session Controller FP-CSCF (206);
  • the fixed access proxy call session controller FP-CSCF (206) forwards the on-hook request message via the xDSL access network DSLAM (301) and DSL Modem (302) to the fixed terminal (701);
  • the fixed terminal (701) sends an on-hook response to the fixed-access proxy call session controller FP-CSCF (206);
  • Fixed access proxy call session controller FP-CSCF (206) forwards the on-hook response to the service call session controller S-CSCF (200);
  • the service call session controller S-CSCF (200) forwards the on-hook response to the inquiry call session controller I-CSCF (201);
  • the service call session controller S-CSCF (202) forwards to the proxy call session controller P-CSCF (203) to hang up response;
  • the proxy call session controller P-CSCF (203) passes the GGSN (401) and SGSN (402) network elements of the GPRS network, and the wireless network subsystem RNS (501) forwards the response to the mobile subscriber (601).
  • a mobile subscriber (601) as shown in FIG. 5 calls a fixed terminal user (701) in the HFC access mode. Call flow, similar to the call flow in xDSL access mode.
  • the main call process of the fixed terminal user (701) in the xDSL access mode calling the PSTN/ISDN network (801) can be roughly described as follows:
  • the fixed terminal user (701) in the xDSL access mode passes the DSLAM access network (DSL) (301) and the DSL Modem (302) and the fixed access proxy call session controller FP-CSCF (206) to the destination user ( 801) requesting to establish a call;
  • DSLAM access network DSL
  • DSL Modem DSL Modem
  • FP-CSCF fixed access proxy call session controller
  • the fixed access proxy call session controller FP-CSCF (206) forwards the call request to the service call session controller S-CSCF (200);
  • the egress gateway controller BGCF (204) determines that the destination user is a user under the PSTN network (901) interconnected by the network, and selects the media gateway controller MGCF (205) that interworks with the PSTN network (901), and The call request is sent to the media gateway controller MGCF (205);
  • the media gateway controller MGCF (205) notifies the media gateway MGW to establish a connection through the media gateway control protocol, and determines the media resource description information of the MGff;
  • the media gateway controller MGCF (205) includes the media resource description information allocated by the media gateway in the response response, and forwards to the egress gateway controller BGCF (204);
  • the egress gateway controller BGCF (204) forwards the response response to the service call session controller S-CSCF (200);
  • Fixed access proxy call session controller FP-CSCF (206) forward response response via DSDSL access network DSLAM (301) and DSL Modem (302) to fixed terminal (701);
  • the fixed end user (701) determines the media resource required for the session, and returns a response confirmation to the fixed-call proxy call session controller FP-CSCF (206);
  • Fixed access proxy call session controller FP-CSCF (206) forward response confirmation to service call session controller S-CSCF (200);
  • the service call session controller S-CSCF (200) sends a response confirmation to the egress gateway controller BGCF (204) for the resources required for the successful reservation session;
  • the egress gateway controller BGCF (204) forwards the response to the media gateway controller MGCF (205);
  • the media gateway controller MGCF (205) checks the connection through the media gateway control protocol, indicating the media gateway MGW Reserving the resources required by the session, and returning the confirmation message to the initiator;
  • the fixed access proxy call session controller FP-CSCF (206) forwards the confirmation to confirm the DSLAM (301) and the DSL Modem (302) of the xDSL access network to the fixed terminal (701);
  • the fixed terminal (701) After receiving the confirmation confirmation, the fixed terminal (701) returns a resource reservation success message to the fixed-access proxy call session controller P-CSCF (206);
  • Fixed access proxy call session controller FP-CSCF (206) forward resource reservation success message to service call session controller S-CSCF (200);
  • the egress gateway controller BGCK204 forwards the resource reservation success message to the media gateway controller MGCF (205);
  • the media gateway controller MGCF (205) After receiving the resource, the media gateway controller MGCF (205) initiates a call request message to the user (801) in the PSTN network via the PSTN network (901), and successfully reserves resources to the initiator.
  • the media gateway controller MGCF (205) After receiving the resource, the media gateway controller MGCF (205) initiates a call request message to the user (801) in the PSTN network via the PSTN network (901), and successfully reserves resources to the initiator.
  • the media gateway controller MGCF (205) after receiving the alert message sent by the user (801) in the PSTN network, sends a temporary response ringback message to the egress gateway controller BGCF (204);
  • the egress gateway controller BGCF (204) forwards the temporary response back ringing information to the serving call session controller S-CSCF (200);
  • the service call session controller S-CSCF (200) forwards the temporary response ringing information to the fixed access proxy call session controller FP-CSCF (206);
  • the fixed terminal (701) After receiving the temporary response ringing information, the fixed terminal (701) prompts the user to remind the destination user;
  • the media gateway controller MGCF (205) after receiving the response message sent by the user (801) in the PSTN network, sends a final response to the call request to the egress gateway controller BGCF (204);
  • the egress gateway controller BGCF (204) forwards the final response of the call request to the serving call session controller S-CSCF (200);
  • the service call session controller S-CSCF (200) forwards the final response of the call request to the fixed-access proxy call session controller FP-CSCF (206); 31, the fixed access proxy call session controller FP-CSCF (206) via the xDSL access network DSLAM (301) and DSL Modem (302) forward call request final response to the fixed terminal (701);
  • the fixed terminal (701) After receiving the final response of the call request, the fixed terminal (701) returns a call confirmation message to the fixed-access proxy call session controller FP-CSCF (206);
  • the service call session controller S-CSCF (200) forwards the call confirmation message to the egress gateway controller BGCF (204);
  • the egress gateway controller BGCF (204) forwards the call confirmation message to the media gateway controller MGCF (205);
  • the fixed end user (701) user establishes a media stream through the access gateway (301) of the PSTN/ISDN fixed terminal and the media gateway MGW on the PSTN side, and passes the PSTN network (901) and the user in the PSTN/ISDN network (801). ) to achieve the call;
  • the user (801) in the PSTN/ISDN network hangs up, and sends an on-hook message to the media gateway controller MGCF via the PSTN network (901) to the forward gateway call confirmation message (205);
  • the media gateway controller MGCF (205) releases the resources allocated for the session through the media gateway, and forwards the hang up request to the egress gateway controller BGCF (204);
  • the egress gateway controller BGCF (204) forwards the on-hook request to the service call session controller S-CSCF (200);
  • the service call session controller S-CSCF (200) forwards the on-hook request to the fixed-access proxy call session controller FP-CSCF (206);
  • the fixed-access proxy call session controller FP-CSCF (206) requests the fixed terminal user (701) via the DSLAM (301) and the DSL Modem (302) forward hang-up of the xDSL access network;
  • the fixed terminal (701) After receiving the on-hook request, the fixed terminal (701) returns to the on-hook response to the fixed-access proxy call session controller FP-CSCF (206);
  • the service call session controller S-CSCF (200) forwards the on-hook response to the egress gateway controller BGCF (204);
  • the egress gateway controller BGCF (204) forwards the on-hook response to the media gateway controller MGCF (205).
  • the invention provides a fixed terminal access mode such as xDSL/HFC/LAN based on the IMS architecture, and realizes the integration of the fixed network and the mobile network based on the IMS architecture.
  • the IMS architecture can provide rich multimedia services for mobile users, and achieves access independence in its architecture.
  • mobile users and fixed users have certain differences in user characteristics, access modes, charging methods, security modes, and the like. Therefore, the present invention provides a new fixed access proxy call session controller for the fixed access mode.
  • the access of the fixed terminal is realized, but also the difference between the mobile and the fixed access is abandoned at the I-CSCF and the S-CSCF, and the fixed convergence of the IMS architecture and the real convergence of the mobile network are realized, and the fusion system of the present invention It not only facilitates the use of users, but also enhances the market competitiveness of telecom operators.

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

Abstract

Sous système multimédia IP d'intégration d'accès fixe et procédé associé, le système comprend au moins: une fonction de commande de session d'appel (CSCF) connectée à un serveur d'abonné à domicile (HSS); une fonction de commande de passerelle de rupture (BGCF), une fonction de commande de passerelle de média (MGCF), la fonction CSCF est connectée avec le réseau téléphonique publique au moyen des fonctions BGCS et MGCF; la fonction CSCF est connectée avec le réseau d'accès radio au moyen d'une fonction de commande de session d'appel par serveur mandataire (P-CSCF); le système comprend également une fonction de commande de session d'appel par serveur mandataire fixe (FP-CSCF) connectant la fonction CSCF et le réseau d'accès fixe, et offre aux utilisateurs d'accès fixe une fonction de commande de session d'appel par serveur mandataire. Le système et le procédé de cette invention permettent l'accès des terminaux fixes et évitent de distinguer entre accès mobile et accès fixe dans les fonctions I-CSCF et S-CSCF, ce qui a pour effet de faciliter leur utilisation, tout en améliorant la compétitivité du fournisseur de services de télécommunication.
PCT/CN2005/000284 2005-03-08 2005-03-08 Sous-systeme multimedia ip pour integration d'acces fixe et procede associe WO2006094433A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005002171A1 (fr) * 2003-06-27 2005-01-06 Nokia Corporation Procede et systeme pour la transmission de donnees
CN1588899A (zh) * 2004-08-04 2005-03-02 北京朗通环球科技有限公司 终端接入控制装置及基于网际协议的多媒体通信系统

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005002171A1 (fr) * 2003-06-27 2005-01-06 Nokia Corporation Procede et systeme pour la transmission de donnees
CN1588899A (zh) * 2004-08-04 2005-03-02 北京朗通环球科技有限公司 终端接入控制装置及基于网际协议的多媒体通信系统

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