WO2012051838A1 - Processeur frontal de traitement de signaux bicc, système et procédé pour service ivr avec sonnerie de retour d'appel personnalisée en couleur bicc - Google Patents

Processeur frontal de traitement de signaux bicc, système et procédé pour service ivr avec sonnerie de retour d'appel personnalisée en couleur bicc Download PDF

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Publication number
WO2012051838A1
WO2012051838A1 PCT/CN2011/072826 CN2011072826W WO2012051838A1 WO 2012051838 A1 WO2012051838 A1 WO 2012051838A1 CN 2011072826 W CN2011072826 W CN 2011072826W WO 2012051838 A1 WO2012051838 A1 WO 2012051838A1
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Prior art keywords
bicc
message
core network
network element
protocol message
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PCT/CN2011/072826
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English (en)
Chinese (zh)
Inventor
梅君君
罗会平
韩银俊
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中兴通讯股份有限公司
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Publication of WO2012051838A1 publication Critical patent/WO2012051838A1/fr

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    • 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
    • H04L65/1063—Application servers providing network services
    • 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
    • H04L65/1096—Supplementary features, e.g. call forwarding or call holding

Definitions

  • the present invention relates to the field of communications, and in particular to a BICC (Beard Independent Call Control).
  • BICC Beard Independent Call Control
  • the present invention relates to the field of communications, and more particularly to BICC (Bearer Independent Call Control).
  • BICC signaling FEP 3G bearer independent call control) protocol (the 3 rd Generation, third generation) networks R4, BICC CRBT IVR (interactive voice response, systems and methods interactive voice response) services .
  • BACKGROUND OF THE INVENTION The CRBT service has been widely used in existing telecommunication networks due to its distinctive features and enhanced user auditory experience, and has brought substantial profits to telecom operators.
  • the broadband ring back tone service is applied more and more on the Internet (Internet Protocol) network.
  • the CRBT IVR service is a service application commonly used by users.
  • the ring back tone IVR service is usually implemented by using a broadband ring back tone system, which is an AS (Application Server) and an MS (Media Server) based on SIP (Session Initialization Protocol).
  • the media server is implemented and accessed by the SIP protocol.
  • the current 3G R4 network is mainly connected to the BICC protocol. Therefore, due to different protocols, the existing broadband CRBT system cannot be directly applied to the 3G R4 network based on the BICC protocol to implement the CRBT IVR service.
  • a primary object of the present invention is to provide a system and method for implementing a BICC signaling front-end and a BICC CRBT IVR service, so as to at least solve the above-mentioned existing broadband CRBT system cannot be directly applied to a 3G R4 network based on the BICC protocol.
  • a BICC signaling front-end machine is provided, which is applied to a 3G R4 network based on a BICC protocol, where the BICC signaling front-end machine includes: a receiving module, configured to initiate a CRBT IVR service at a user.
  • the conversion module is set to be from the core network
  • the meta-BICC protocol message is converted to an internal interface protocol message and sent to the AS, and the internal interface protocol message from the AS is converted into a BICC protocol message and sent to the core network element.
  • the BICC signaling front-end is connected to the core network element through the BICC protocol, and is connected to the AS through an internal interface protocol.
  • the core network element includes a mobile switching center MSC server and a media gateway MGW, wherein the MSC server is connected to the BICC signaling front-end machine through the BICC protocol, and the MGW is connected to the media server MS through the RTP protocol.
  • an implementation system of a BICC CRBT IVR service is provided, which is applied to a 3G R4 network based on a BICC protocol, the system includes an AS and an MS, and further includes: the BICC signaling front-end machine described above.
  • a method for implementing a BICC CRBT IVR service is provided, which is applied to a 3G R4 network based on a BICC protocol, where the method includes: a core network element on a calling side receives a calling user After the IVR call request, the media negotiation process with the MS is initiated, in which, in the media negotiation process, the BICC protocol message sent by the core network element of the calling side is converted into an internal interface protocol message by the BICC signaling front-end machine.
  • the AS converts the internal interface protocol message from the AS into a BICC protocol message and sends the message to the core network element on the calling side; the core network element on the calling side establishes a bearer connection with the MS; and the MS places the calling user Sound collection number.
  • the method further includes: when the calling user selects the transfer operator according to the playback of the MS, the AS notifies the BICC signaling front-end machine to call the operator; the MS passes the BICC letter. Let the front-end machine negotiate media with the core network element on the called side, and establish a bearer connection with the core network element on the called side; the AS creates a conference on the MS, and joins the attendant and the calling user to the conference.
  • the AS notifies the BICC signaling front-end call attendant to: the MS receives the button information generated by the calling user through the button operation, and reports the button information to the AS; the AS determines, according to the button information, the calling user selects the transfer operator; The MS plays the turn-by-telephone alert tone, and simultaneously instructs the BICC signaling front-end machine to call the attendant through the internal interface protocol message; the BICC signaling front-end machine sends the initial address message IAM to the mobile switching center MSC server on the called side to call the attendant.
  • the MS performs media negotiation with the core network element on the called side through the BICC signaling front-end machine.
  • the MSC server on the called side returns the application transmission mechanism APM after receiving the IAM; the BICC signaling front-end machine is based on the APM.
  • Send an internal interface protocol message to the AS where the internal interface
  • the protocol message carries the fake session description protocol SDP information of the media gateway MGW on the called side;
  • the AS sends a call request INVITE to the MS, where the INVITE carries the ⁇ _SDP information;
  • the MS returns the call response to the AS, where the call response
  • the SDP information of the MS is carried in the AS;
  • the AS converts the internal interface protocol message carrying the SDP information of the MS into the APM through the BICC signaling front-end machine, and then sends the message to the MSC server on the called side;
  • the MSC server on the called side passes the BICC.
  • the signaling front-end machine converts the returned APM that carries the real SDP information of the MGW on the called side into an internal interface protocol message, and then sends the message to the AS.
  • the AS sends a re-call request REINVITE to the MS, where the REINVITE carries the real SDP. information.
  • the media negotiation process between the core network element on the calling side and the media server includes: After receiving the IVR call request of the calling user, the MSC server on the calling side sends the IAM to the BICC signaling front-end machine.
  • the IAM carries the SDP information of the MGW on the calling side; the BICC signaling front-end machine converts the IAM into an internal interface protocol message and sends it to the AS; the AS sends a call request INVITE to the MS, where the INVITE carries The SDP information of the MGW on the calling side; after receiving the INVITE, the MS returns a response message to the AS, where the response message carries the SDP information of the MS; the AS carries the internal information of the SDP information of the MS through the BICC signaling front-end machine. After the interface protocol message is converted to APM, it is sent to the MSC server on the calling side.
  • a BICC signaling front-end machine is set between the core network element and the AS, and is used for converting between the BICC protocol and the internal interface protocol, thereby realizing the fusion of the BICC protocol and the SIP protocol, thereby being able to be in the 3G.
  • the SIP-based AS and MS, and the BICC signaling front-end are used to implement the CRBT IVR service, which solves the problem that the existing broadband CRBT system cannot be directly applied to the 3G R4 network based on the BICC protocol to implement the CRBT IVR service. The problem.
  • FIG. 1 is a structural block diagram of a BICC signaling front-end machine in a 3G R4 network according to an embodiment of the present invention
  • FIG. 2 is a BICC signaling front-end machine, an AS, and a core network according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an implementation system of a BICC CRBT IVR service according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for implementing a BICC CRBT IVR service according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a method for implementing a BICC CRBT IVR service according to a preferred embodiment of the present invention
  • FIG. 6 is a flowchart according to a preferred embodiment of the present invention.
  • the BICC signaling front-end machine can be applied to a 3G R4 network based on a BICC protocol, and the BICC signaling front-end
  • the machine includes a receiving module 10 and a conversion module 20.
  • the BICC signaling front-end will be described below.
  • the receiving module 10 is configured to receive a BICC protocol message from the core network element and receive an internal interface protocol message from the AS during the initiation of the CRBT IVR service by the user, and receive the internal interface protocol message from the AS.
  • the conversion module 20 is connected to the receiving module 10, and is configured to be
  • the BICC protocol message of the core network element is converted into an internal interface protocol message and sent to the AS, and the internal interface protocol message from the AS is converted into a BICC protocol message and sent to the core network element.
  • a BICC signaling front-end machine is set between the core network element and the AS, and is used for converting between the BICC protocol and the internal interface protocol, thereby realizing the fusion of the BICC protocol and the SIP protocol, thereby being able to be in the 3G R4.
  • FIG. 2 is a schematic diagram of a connection between a BICC signaling front-end machine and an AS and a core network element according to an embodiment of the present invention.
  • the BICC signaling front-end machine is connected to a core network element through a BICC protocol, and Connect to the AS through an internal interface protocol.
  • the core network element includes: MSC (Mobile Switch Center) server and MGW (Media Gate Way), FIG.
  • FIG. 3 is a system for implementing BICC CRBT IVR service according to an embodiment of the present invention.
  • MSC The server is connected to the above BICC signaling front-end machine through the BICC protocol, and the MGW is connected to the MS through the RTP protocol.
  • the MSC servers are connected by the BICC protocol, and the SIP protocol is used between the AS and the MS.
  • the RTP media stream is transmitted between the MGWs, the MGW and the MS, and the MSC server interacts with the MGW using the H.248 protocol.
  • the system shown in Figure 3 constitutes the implementation system of the BICC CRBT IVR service.
  • the system can be applied to the 3G R4 network based on the BICC protocol to implement the CRBT IVR service, including the CRBT IVR to the attendant service.
  • 4 is a flowchart of a method for implementing a BICC CRBT IVR service according to an embodiment of the present invention.
  • the implementation may be applied to a 3G R4 network based on the BICC protocol. As shown in FIG.
  • Step S402 After receiving the IVR call request (including the IVR access code) of the calling user, the core network element on the calling side initiates a media negotiation process with the MS, where, in the media negotiation process, before the BICC signaling The machine converts the BICC protocol message sent by the core network element on the calling side into an internal interface protocol message and sends it to the AS, and converts the internal interface protocol message from the AS into a BICC protocol message and sends the message to the core network element on the calling side.
  • Step S404 the core network element on the calling side establishes a bearer connection with the MS; in step S406, the MS performs a sound collection and reception on the calling user.
  • a BICC signaling front-end machine is set between the core network element and the AS, and is used for converting between the BICC protocol and the internal interface protocol, thereby realizing the fusion of the BICC protocol and the SIP protocol, thereby being able to be in the 3G R4.
  • the SIP protocol-based AS and MS, and the BICC signaling front-end machine are used to implement the CRBT IVR service, which solves the problem that the existing broadband CRBT system cannot be directly applied to the 3G R4 network based on the BICC protocol to implement the CRBT IVR service. problem.
  • FIG. 5 is a flowchart of a method for implementing a BICC CRBT IVR service according to a preferred embodiment of the present invention.
  • step S408 When the calling user selects to switch to the operator according to the playback of the MS, the AS notifies the BICC signaling front-end machine to call the attendant;
  • step S410 The MS performs media negotiation with the core network element on the side of the called (in the actual application, the called party, the operator) through the BICC signaling front-end machine, and establishes a bearer with the core network element on the called side.
  • a media connection may be performed between the core network element and the MS based on the BIBCP (BICC IP Bearer Control Protocol) protocol; the established bearer connection may be a Nb UP (User Plane user plane) connection, MS And the core network element transmits the RTP media stream on the connection.
  • the AS creates a conference on the MS, and joins the attendant and the calling user into the conference, so that the calling user and the attendant make a call.
  • the connection relationship between the BICC signaling front-end device in the method embodiment of FIG. 4 and FIG. 5 and the core network element on the calling side or the core network element and the AS on the called side is as shown in FIG. 3 .
  • the above embodiment implements the CRBT IVR service through the BICC signaling front-end, the SIP-based AS, and the MS.
  • the BICC signaling front-end machine is configured to receive and parse the BICC protocol message sent by the MSC server, convert the BICC protocol message into an internal interface protocol message, send the message to the AS, or receive the internal interface protocol message sent by the AS, and connect the internal interface.
  • the protocol message is converted into a BICC protocol message and sent to the core network element;
  • the AS implements the service logic of the CRBT IVR service, and calls the MS or the attendant; the MS performs the functions of playing, receiving, and receiving according to the indication of the AS.
  • the system implements a call flow of the CRBT IVR to the attendant service.
  • the call process includes the following steps: Step 1
  • the calling user dials the IVR access code and triggers the MSC server on the calling side.
  • the MSC server on the calling side sends an IAM (Initial Address Message) to the BICC signaling front-end machine, where I
  • the AM carries the SDP (Session Description Protocol) information of the MGW (Media GateWay) on the calling side (ie, SDP1 in FIG. 6), and the SDP information follows the IPBCP (BICC IP Bearer Control Protocol, BICC).
  • SDP Session Description Protocol
  • the IP bearer control protocol protocol, and the SDP information includes information such as the media type, connection address, port number, and encoding of the MGW on the calling side.
  • Step 2 After receiving the IAM, the BICC signaling front-end machine finds that it is an IVR. Flow, sending an internal message triggering the call (ie, internal message 1 in FIG. 6) to the AS to trigger the IVR service on the AS;
  • Step 3 When the AS receives the internal message of the triggered call sent by the BICC signaling front-end, it triggers the CRBT IVR service, and the AS carries the SDP information of the MGW on the calling side to call the MS (that is, sends a call request (INVITE) to the MS.
  • the AS carries the SDP information of the MGW on the calling side to call the MS.
  • the AS sends an INVITE to the MS, where the INVITE carries the SDP1.
  • Step 4 The MS returns a 200 INVITE (Call Answer) message, where the 200 INVITE carries the SDP information of the MS (ie, the SDP MS 1 in FIG.
  • the SDP information follows the IPBCP protocol, and includes the media type of the MS, Connect the address, port number, and encoding information;
  • Step 5 the AS sends an ACK to the MS;
  • Step 6 the AS sends an internal message to the BICC signaling front-end (ie, the internal message 2 in Figure 6), indicating the BICC signaling
  • the MSC server on the calling side is returned to the APM (Application Transport Mechanism) and carries the SDP information of the MS in the APM.
  • the BICC signaling front-end machine is sent to the MSC server on the calling side.
  • the APM is sent, and the SDP information of the MS is carried in the APM.
  • Step 8 After the connection is successfully established, the MSC server on the calling side sends a COT (Continuity) message to the BICC signaling front-end, indicating the Nb UP between the MGW and the MS on the calling side.
  • COT Continuousity
  • Step 7 The load has been successfully established; Step 9, the internal message of the BICC signaling front-end machine (ie, internal message 3 in Figure 6) informs the AS that the load between the MGW and the MS on the calling side is successfully established; Step 10, the AS gives After the BICC signaling front-end machine replies to the internal message (ie, the internal message 4 in FIG. 6), it indicates that the bearer setup success notification message (ie, internal message 3) is received; Step 11, the BICC signaling front-end machine is sent to the calling side.
  • the MSC server returns to ACM (Address Complete Message); Step 12: The AS sends an internal message to the BICC signaling front-end machine (ie, the internal message 5 in FIG.
  • Step 13 The BICC signaling front-end machine sends an ANM to the MSC server on the calling side.
  • the AS sends an INFO (Notification) message to the MS, instructing the MS to perform a voice-receiving number on the calling user, and the calling user enters IVR operation flow; this step 4 corresponds to step S406 in Figs. 4 and 5.
  • Step 15 The calling user performs a button according to a voice prompt (ie, a voice prompt), and the MS reports the user button (ie, the result of receiving the number) to the AS by using an INFO message; Step 16, when the AS finds that the user button information is transferred to the operator.
  • the AS sends an INFO message to the MS to indicate that it plays the caller's prompt tone to the calling user.
  • Step 17 At the same time as step 16, the AS sends an internal message to the BICC signaling front-end machine (ie, the internal message 6 in FIG.
  • the BICC signaling front-end machine calls the operator; Step 18, the BICC signaling front-end machine converts the internal message 6 into an IAM message and sends it to the MSC server on the called side; Step 19, the MSC server on the called side returns to the APM.
  • the BICC signaling front-end machine sends an internal message to the AS (that is, the internal message 7 in FIG. 6), and carries the fake SDP information, which follows the IPBCP protocol, including the media type and the fake connection address (0.0.0.0).
  • Step 21 after receiving the internal message 7, the AS carries the ⁇ _SDP information to call the MS (ie, sends a call request (INVITE) to the MS); Step 22, the MS returns 200 INVITE (Call Answer) Answering, and carrying the SDP information of the MS (ie, SDP MS2 in FIG. 6), the SDP information follows the IPBCP ten-conference, including the media type, connection address, port number, encoding, and the like of the MS; Step 23, AS gives MS back ACK; Step 24: The AS sends an internal message to the BICC signaling front-end (ie, the internal message 8 in FIG. 6), where the internal message 8 carries the SDP information of the MS.
  • the BICC signaling front-end ie, the internal message 8 in FIG. 6
  • Step 25 The BICC signaling front-end machine is given The MSC server on the calling side sends the APM to carry the SDP information of the MS.
  • the MSC server on the called side sends the APM to the BICC signaling front-end, carrying the real SDP information of the MGW on the called side (ie, SDP2 in Figure 6).
  • the SDP information follows the IPBCP protocol, including the media type, connection address, port number, and encoding information of the MGW on the called side;
  • Step 27 the internal message of the BICC signaling front-end machine (ie, the internal message in FIG. 6) 9) Notifying the AS, wherein the internal message 9 carries the real SDP information of the MGW on the called side;
  • the AS carries the real SDP of the called MGW to the Relnvite (re-call)
  • the MS carries a parameter in the Requestline of the Relnvite, and specifies a media coding mode (such as G711/AMR) for the Nb UP connection initiated by the MS to transmit on the connection; Step 29, the MS returns 200 Relnvite (Recall Answer), Carrying the SDP information of the MS (that is, the SDP MS3 in FIG. 6), the SDP information follows the IPBCP ten, including the media type, connection address, port number, and encoding information of the MS; Step 30, the AS returns an ACK to the MS; 31.
  • the AS sends an internal message (ie, the internal message 10 in FIG.
  • Step 32 After the connection is successfully established, the MS sends an INFO message to the AS to notify that the link establishment is successful (that is, the Nb UP bearer connection between the MS and the MGW on the called side has been successfully established); Step 33, the AS sends the BICC signaling to the front.
  • the machine sends an internal message (ie, the internal message 11 in FIG.
  • Step 34 the BICC signaling front-end machine sends the internal to the AS.
  • Message 12 indicating that the bearer setup notification message sent by the AS is received
  • Step 35 The BICC signaling front-end machine sends a COT message to the MSC server on the called side;
  • Step 36 the MSC server on the called side sends an ACM to the BICC signaling front-end machine;
  • Step 37 the BICC signaling front-end machine gives the AS The internal message 13 is sent to notify; in step 38, the operator answers, the MSC server on the called side sends an ANM message to the BICC signaling front-end machine;
  • Step 39 the BICC signaling front-end machine converts the ANM message into an internal message 14 to notify the AS
  • the AS sends an INFO request to the MS to create a conference, and joins the attendant to the conference.
  • Step 41 The AS sends an INFO to the MS to stop the playback of the calling user.
  • step 42 the AS sends an INFO to the MS, and the calling user is sent. Join the meeting.
  • both the calling user and the attendant join the conference, and the MS completes mixing with the calling side MGW and the called side MGW, so that the calling user and the attendant make a call.
  • steps 40-42 correspond to step S412 in FIG.
  • the CRBT IVR transfer operator service is completed.
  • the internal message in the embodiment shown in Figure 6 is the internal interface protocol message described above.
  • the present invention achieves the following technical effects:
  • a BICC signaling front-end machine between the core network element and the AS, for converting between the BICC protocol and the internal interface protocol
  • the integration of the BICC protocol and the SIP protocol is realized, so that the ICR and the BICC signaling front-end device can be used to implement the CRBT IVR service on the 3G R4 network, and the existing broadband CRBT system cannot be directly solved. It is applied to the 3G R4 network based on the BICC protocol to implement the CRBT IVR service.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or make multiple modules or steps in them Implemented as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

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Abstract

La présente invention se rapporte à un processeur frontal de traitement de signaux de contrôle d'appel indépendant de porteuse (BICC, Bearer Independent Call Control). L'invention se rapporte d'autre part à un système et à un procédé pour un service de réponse vocale interactive (IVR, Interactive Voice Response) avec sonnerie de retour d'appel personnalisée en couleur BICC via le chemin de données R4 du réseau 3G basé sur le protocole BICC. Le processeur frontal de traitement de signaux BICC (30) comprend un module de réception (10) qui est utilisé pour recevoir un message de protocole BICC en provenance de l'élément de cœur de réseau et pour recevoir le message de protocole d'interface interne en provenance du serveur d'applications (AS, Application Server) durant le traitement du service IVR initié par l'utilisateur. Le processeur frontal de traitement de signaux BICC (30) selon l'invention comprend d'autre un module de transformation (20) qui est utilisé : pour transformer le message de protocole BICC en provenance de l'élément de cœur de réseau de sorte à obtenir le message de protocole d'interface interne ; pour envoyer le message de protocole d'interface interne au serveur AS ; pour transformer le message de protocole d'interface interne en provenance du serveur AS de sorte à obtenir le message de protocole BICC ; et pour envoyer le message de protocole BICC à l'élément de cœur de réseau. La solution technique de la présente invention permet de réaliser le service IVR avec sonnerie de retour d'appel personnalisée en couleur sur le chemin de données R4 du réseau 3G au moyen du serveur AS et du serveur de média (MS, Media Server) sur la base du protocole d'initialisation de session (SIP, Session Initialization Protocol) et également au moyen du processeur frontal de traitement de signaux BICC.
PCT/CN2011/072826 2010-10-21 2011-04-14 Processeur frontal de traitement de signaux bicc, système et procédé pour service ivr avec sonnerie de retour d'appel personnalisée en couleur bicc WO2012051838A1 (fr)

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CN101471921A (zh) * 2007-12-25 2009-07-01 华为技术有限公司 一种bicc与sip之间互通的方法和设备
CN101355608A (zh) * 2008-09-11 2009-01-28 中兴通讯股份有限公司 一种实现彩铃ip化的***及方法
CN101677480A (zh) * 2008-09-18 2010-03-24 中兴通讯股份有限公司 一种彩铃用户自服务业务***及其实现方法
CN101588562A (zh) * 2009-06-03 2009-11-25 中兴通讯股份有限公司 基于承载无关呼叫控制协议的多媒体彩铃实现方法及***
CN101997991A (zh) * 2010-10-21 2011-03-30 中兴通讯股份有限公司 Bicc信令前置机、bicc彩铃ivr业务的实现***和方法

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