CN101247431B - Method and system for implementing IP multimedia subsystem monitoring - Google Patents

Method and system for implementing IP multimedia subsystem monitoring Download PDF

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Publication number
CN101247431B
CN101247431B CN 200810084641 CN200810084641A CN101247431B CN 101247431 B CN101247431 B CN 101247431B CN 200810084641 CN200810084641 CN 200810084641 CN 200810084641 A CN200810084641 A CN 200810084641A CN 101247431 B CN101247431 B CN 101247431B
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user
control function
monitor
listening
function
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CN101247431A (en
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吴建新
陈正江
黄波
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中兴通讯股份有限公司
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Abstract

The invention discloses a method and a system for realizing monitoring an IP multimedia subsystem. The method comprises: call control function arranges control for a monitored user according to requirement of a monitor center, and generates monitor information; the call control function informs the monitor information to a control function embodiment, then the control function embodiment informs the monitor information to a transmission function embodiment which is nether in the control function embodiment; the call control function monitors activity of the monitored user, and the activity ofthe monitored is reported to the monitor center by the call control function embodiment or other control function embodiments; and when the monitor center needs communication content, the transmission function embodiment sends the communication content to the monitor center. The system comprises: the monitor center, the call control function, the control function embodiment and the transmission function embodiment. The invention perfects existing real time monitoring for user services in the IP multimedia subsystem via processing necessary extending on existing mature interface in the existing IP multimedia subsystem.

Description

实现IP多媒体子系统监昕的方法及系统 IP multimedia subsystem implementation method and system for monitoring Xin

技术领域 FIELD

[0001] 本发明涉及通信技术领域,尤其涉及IP多媒体子系统监听技术领域。 [0001] The present invention relates to communications technologies, and in particular relates to IP Multimedia Subsystem listening art. 背景技术 Background technique

[0002] 近年来,随着国际政治形式的发展,合法监听功能越来越多的被各个国家的安全部门所重视,成为保障国家安全,获取必要国家安全信息的一种对通信网络进行监控和信息获取的有效手段。 [0002] In recent years, as international political forms of development, lawful interception increasingly being valued by the security services in each country, to become national security, access to information is an essential national security communications network to monitor and effective means of access to information. 因此许多国家的安全部门都会强制运营商提供监听功能。 Therefore, the security sector in many countries will force operators to provide monitoring function.

[0003] IP多媒体子系统是提供实时和非实时的IP多媒体业务的通用体系结构,由于不限定下层接入技术等特点,它在固定、移动网络融合的过程中受到广泛关注。 [0003] IP Multimedia Subsystem to provide real-time and non-real general IP multimedia services architecture, since the access is not limited to the characteristics of the underlying technology, which received extensive attention in the fixed and mobile network convergence process.

[0004] 现有的PSTN(公共电话交换网)、GSM(全球移动通信系统)、CDMA(码分多址接入)、NGN都有了较为成熟的方案,并且已经成功商用,但是对于IP多媒体子系统还没有完整成熟的解决方案,这不利于未来3G和NGN的推广。 [0004] The conventional PSTN (public switched telephone network), GSM (Global System for Mobile), the CDMA (Code Division Multiple Access), the NGN has a more sophisticated program, and has been commercially successful, but for an IP Multimedia subsystem has not yet mature and complete solution, which is not conducive to the promotion of future 3G and NGN.

发明内容 SUMMARY

[0005] 鉴于上述的分析,本发明旨在提供一种实现IP多媒体子系统监听的方法及系统, 用以解决现有技术中存在的IP多媒体子系统监听方案不完整的问题。 [0005] In view of the above analysis, the present invention aims to provide a method and system for IP multimedia subsystem listening, listening to address an IP multimedia subsystem in the prior art embodiment incomplete problem.

[0006] 本发明的目的是通过以下技术方案实现的: [0006] The object of the present invention is achieved by the following technical solution:

[0007] 本发明提供了一种实现IP多媒体子系统监听的方法,所述方法包括: [0007] The present invention provides a method for realizing listener IP multimedia subsystem, the method comprising:

[0008] 步骤A :呼叫会话控制功能接收携带有被监听用户标识和监听内容的设控命令, 根据被监听用户标识获得该被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息; [0008] Step A: Call Session Control Function receives carries monitored user identification and listening content provided control command to obtain information about the monitored user based on the monitored user identifier, and in accordance with the monitored user information and intercepts generating monitor information;

[0009] 步骤B:呼叫会话控制功能将监听信息通知给其他控制功能实体,然后由其他控制功能实体将所述监听信息通知给其下面的传输功能实体;呼叫会话控制功能监测被监听用户的活动,并由呼叫会话控制功能或者其他控制功能实体将被监听用户的活动报告给监听中心;且当监听中心需要通信内容时,由传输功能实体将通信内容发送给监听中心。 [0009] Step B: call session control function to monitor information to the other control function entity, and then by the other control function entity to which the monitor information to the following transmission function entity; call session control function to monitor the user's activity being monitored by the call session control function entity, or other control functions to be monitored to monitor the user's activity report center; and when needed interception center communication content transmitted by the communication function entity transmits the content to the LEA.

[0010] 进一步地,所述步骤A具体包括: [0010] Further, the step A comprises:

[0011] 监控控制发送携带有被监听用户标识和监听内容的设控命令给呼叫会话控制功能; [0011] The monitoring control transmission carries monitored user identification and listening content control command provided to the call session control function;

[0012] 呼叫会话控制功能根据被监听用户标识获得该被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息。 [0012] Call Session Control Function being monitored to obtain information about the user based on the monitored user identifier, and generating monitor information from the related information and monitoring the content of the user being monitored.

[0013] 进一步地,所述被监听用户至少为下述类型之一: [0013] Further, the user is listening to at least one of the following types:

[0014] 通过接入网关接入IP多媒体子系统的用户、直接接入IP多媒体子系统的用户、与其他IP多媒体子系统用户有业务交互的用户、IP多媒体系统内的移动用户、与CS域有业务交换的用户、有补充业务的用户。 [0014] User access to the access gateway via an IP multimedia subsystem, a direct user access to an IP multimedia subsystem, service users interact with other IP Multimedia Subsystem users, mobile users in the IP multimedia system, and the CS domain exchange of business users, users of supplementary services. 其中, among them,

[0015] 当所述被监听用户为通过接入网关接入IP多媒体子系统的用户时,所述步骤B具体包括:[0016] 呼叫会话控制功能将监听信息发送给相应的模拟网关控制功能,继而由模拟网关控制功能将监听信息发送给接入网关; [0015] When the user is listening to an access gateway via an IP multimedia subsystem user access, said step B comprises: [0016] Call Session Control Function to send information to monitor the corresponding analog Gateway Control Function, followed by an analog control information to the gateway to monitor the access gateway;

[0017] 判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务相关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由接入网关将通信内容发送给监听中心。 [0017] judgment monitored whether the user business-related activities or business-related activities occur: If the occurrence monitor user traffic unrelated activities, the call session control function to send business-related event to listen for the center; if the monitored user happen business-related activities, the call session control function sends a service event related to the interception center and the interception center when the communication content needed by the access gateway transmits the communication content to the LEA.

[0018] 当所述被监听用户为直接接入IP多媒体子系统的用户时,所述步骤B具体包括: [0018] When the user is listening to the user direct access to an IP multimedia subsystem, said step B comprises:

[0019] 呼叫会话控制功能将监听信息发送给资源接纳控制系统,资源接纳控制系统上的基于业务的策略决策功能将监听信息发送给核心边界网关功能; [0019] call session control function to monitor information sent to the resource and admission control systems, resource and admission based policy decision function on the control system will monitor sends information to the core border gateway function;

[0020] 判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务无关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由核心边界网关功能将通信内容发送给监听中心。 [0020] judgment monitored whether the user business-related activities or business-related activities occur: If the occurrence monitor user traffic unrelated activities, the call session control function to send business-related event to listen for the center; if the monitored user happen business-related activities, the call session control function to send business-related event to listen for the center, and when the content of communications interception center needs, from the core border gateway function to send communications to monitor the contents of the center.

[0021] 当所述被监听用户为与其他IP多媒体子系统用户有业务交互的用户时,所述方法包括: [0021] When the user is listening when users interact with other service IP multimedia subsystem user, the method comprising:

[0022] 呼叫会话控制功能将监听信息发送通知给资源接纳控制系统,资源接纳控制系统上的基于业务的策略决策功能将监听信息发送给互连边界网关功能; [0022] Call Session Control Function to send a notification to listen for information resource and admission control systems, resource and admission based policy decision function on the control system to monitor information sent to the Interconnection Border Gateway Function;

[0023] 判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务无关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由互连边界网关功能将通信内容发送给监听中心。 [0023] judgment monitored whether the user business-related activities or business-related activities occur: If the occurrence monitor user traffic unrelated activities, the call session control function to send business-related event to listen for the center; if the monitored user happen business-related activities, the call session control function to send a service-related events to the interception center, and when the communication content needed interception center, interconnected by border gateway function to send the contents of the communication LEA.

[0024] 当所述被监听用户为IP多媒体系统内的移动用户时,所述步骤B具体包括: [0024] When the user is listening to a mobile subscriber within an IP multimedia system, the step B comprises:

[0025] 呼叫会话控制功能将监听信息发送给策略决策功能,策略决策功能将监听信息通知给GPRS网关支持节点; [0025] Call Session Control Function to send information to monitor the policy decision function, policy decision function to monitor information to the gateway GPRS support node;

[0026] 判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务无关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由GPRS网关支持节点将通信内容发送给监听中心。 [0026] Analyzing monitored whether the user business-related activities or business related activities occur: if the occurrence of intercepted user business-related activities, the call session control function sends service independent event to the interception center; if the monitored user occurs service independent activity, call session control function to send business-related event to listen for the center, and when the content of communications interception center needs, the GPRS gateway support node sends content to monitor the communication center.

[0027] 当所述监听用户为与CS域有业务交换的用户时,所述步骤B具体包括: [0027] When the user is listening when user traffic exchange with a CS domain, said step B comprises:

[0028] 呼叫会话控制功能将监听信息发送给媒体网关控制功能,媒体网关控制功能将监听信息发送给中继网关功能; [0028] Call Session Control Function to monitor information to the media gateway control function, media gateway control function to monitor information to the relay gateway function;

[0029] 判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务无关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由中继网关功能将通信内容发送给监听中心。 [0029] judgment monitored whether the user business-related activities or business-related activities occur: If the occurrence monitor user traffic unrelated activities, the call session control function to send business-related event to listen for the center; if the monitored user happen business-related activities, the call session control function to send a service-related events to the interception center, and when the communication content needed interception center, the relay gateway function transmits the communication content to the LEA.

[0030] 当所述监听用户为有补充业务的用户时,所述步骤B具体包括: [0030] When the user is listening supplementary service users, the step B comprises:

[0031] 呼叫会话控制功能将监听信息发送给多媒体资源功能控制器和应用服务器,多媒体资源功能控制器将监听信息发送给多媒体资源处理器; [0031] Call Session Control Function to monitor information to the Multimedia Resource Function Controller and an application server, a multimedia resource function controller transmits information to the monitor processor multimedia resources;

[0032] 判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业 [0032] monitored to determine whether the user business-related activities or business activities unrelated to occur: If a user is listening occurs Industry

6务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务无关活动,则应用服务器向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由多媒体资源处理器将通信内容发送给监听中心。 6 works regardless of activity, then the call session control function sends service independent event to the interception center; if the occurrence of intercepted user service independent event, the application server sends a service-related events to the interception center, and when the interception center requires communication content by the multimedia the processor sends the resources to monitor the content of the communication center.

[0033] 本发明还提供了一种实现IP多媒体子系统监听的系统,所述系统包括:监听中心、呼叫会话控制功能、其他控制功能实体和传输功能实体,其中, [0033] The present invention further provides a system for implementing an IP multimedia subsystem listening, the system comprising: interception center, call session control function, and a transmission control function entity other functional entity, wherein,

[0034] 所述监听中心,用于下发携带有被监听用户标识和监听内容的的设控命令给呼叫会话控制功能; [0034] the listening center, adapted to deliver monitored carries user identification and listening content control command provided to the call session control function;

[0035] 所述呼叫会话控制功能,用于接收携带有被监听用户标识和监听内容的设控命令,根据被监听用户标识获得该被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息;同时,所述呼叫会话控制功能还用于监测被监听用户的活动,并根据需要将被监听用户的活动报告给监听中心; [0035] The call session control function for receiving the user identifier carries the monitored and monitoring provided content control command, to obtain information about the user being monitored according to the monitored user identifier, and based on information about the user and monitored monitoring the content generating monitor information; the same time, a call session control function is further configured to monitor the user's monitored activity, and the user is listening to the activity report interception center according to need;

[0036] 所述其他控制功能实体,用于将收到的监听信息通知给其下面的传输功能实体; 同时,当被监听用户有活动时,所述控制功能实体还用于将被监听用户的活动报告给监听中心; [0036] The other control function entity, for monitoring the received information is notified to the underlying transport function entity; Meanwhile, when the monitored user activity, the control function entity is further configured to monitor the user's report to monitor the activities center;

[0037] 所述传输功能实体,当监听中心需要通信内容时,所述传输功能实体用于将通信内容发送给监听中心。 The [0037] transport functional entity, when the communication content needed interception center, the transmission function for sending entity to a communication content LEA.

[0038] 进一步地,所述IP多媒体子系统与监听中心之间的接口为监听标准接口,呼叫会话控制功能与各控制功能实体之间的接口和各控制功能实体与其下面的传输功能实体之间的接口为扩展的IP多媒体子系统内部标准接口。 [0038] Further, the interface between the IP Multimedia Subsystem and LEA to monitor standard interface between the interface and control functions between each of the Call Session Control Function entity with control functional entity with the underlying transport function entity interfaces for the expansion of IP multimedia subsystem internal standard interfaces.

[0039] 进一步地,所述控制功能实体至少包括下述实体中的一个: [0039] Furthermore, the control function entity comprises at least one of the following entities:

[0040] 接入网关控制功能、媒体网关控制功能、多媒体资源功能控制器、互连边界网关控制功能、应用服务器、资源接纳控制系统、策略决策功能。 [0040] The access gateway control function, media gateway control functions, multimedia resource function controller, the interconnection border gateway control function, an application server, RACS, a policy decision function.

[0041] 进一步地,所述传输功能实体至少包括下述实体中的一个: [0041] Further, the transport function entity comprises at least one of the following entities:

[0042] 网关支持节点、接入网关功能、核心边界网关功能、多媒体资源处理器、中继网关功能、互连边界网关功能。 [0042] The gateway support node, an access gateway function, the core border gateway function, multimedia resources processor, a relay gateway function, an Interconnection Border Gateway Function.

[0043] 本发明有益效果如下:本发明利用现有IP多媒体子系统中各功能实体间已有的成熟接口和与监听中心已有的接口,在其上面进行了必要的扩展,完善了现有对IP多媒体子系统中用户业务的实时监听。 [0043] Advantageous effects of the present invention are as follows: The present invention utilizes already existing IP Multimedia Subsystem interfaces between the various functional entities and interfaces with existing mature monitor center, the necessary extensions thereon, improve the existing Real-time monitoring of IP multimedia subsystem user traffic.

[0044] 本发明的其他特征和优点将在随后的说明书中阐述,并且,部分的从说明书中变得显而易见,或者通过实施本发明而了解。 [0044] Other features and advantages of the invention will be set forth in the description which follows, and in part will become apparent from the description, or learned by practice of the present invention. 本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。 The objectives and other advantages of the invention may be realized and attained by the written description, claims, and drawings structure particularly pointed out.

附图说明 BRIEF DESCRIPTION

[0045] 图1为本发明所述方法的流程示意图; Process [0045] Fig 1 a schematic view of the method of the present invention;

[0046] 图2为本发明所述系统的结构示意图。 [0046] FIG. 2 is a structural diagram of the system of the present invention.

具体实施方式 Detailed ways

[0047] 下面结合附图来具体描述本发明的优先实施例,其中,附图构成本申请一部分,并与本发明的实施例一起用于阐释本发明的原理。 [0047] The following detailed description in conjunction with the accompanying drawings preferred embodiments of the present invention, which drawings form a part of this application, and together with the embodiments of the present invention to explain the principles of the present invention. [0048] 首先,结合附图1对本发明所述方法进行详细说明。 [0048] First, FIG. 1 in conjunction with the method of the present invention is described in detail.

[0049] 本发明所述方法沿用了现有IP多媒体子系统的架构,以及IP多媒体子系统与监听中心之间的监听标准接口,在此基础上,对IP多媒体子系统内部标准接口进行了扩展。 [0049] The method of the present invention follows the existing IP Multimedia Subsystem architecture, standard interface between the listener and the listener and the center of an IP multimedia subsystem, based on this, internal standard for IP multimedia subsystem interface extension .

[0050] 如图1所示,图1为本发明实施例所述方法的流程示意图,具体可以包括如下步骤: [0050] As shown in FIG. 1, FIG. 1 is a schematic flowchart of the method embodiments of the present invention may include the following steps:

[0051] 步骤101 :监听中心向CSCF(Call Session Control Function,呼叫会话控制功能)发送设控命令,其中携带被监听用户的标识、监听内容等,被监听用户标识可以是SIP URI (会话初始协议统一资源认证)或者Tel URI (号码统一资源认证),监听内容包括通信事件和通信内容; [0051] Step 101: the interception center to the CSCF (Call Session Control Function, call session control function) transmits set control command, which carries the monitored user identification, monitoring content, monitored user ID may be SIP URI (Session Initiation Protocol uniform resource certification) or Tel URI (uniform resource certification number), listens including communication events and communications content;

[0052] 步骤102 :CSCF根据被监听用户标识,确定被监听用户,并从数据库中得到被监听用户的相关信息,然后根据被监听用户的相关信息和监听内容产生监听信息,并将监听信息通知给其它CSCF、MGCF (Media Gateway ControlFunction,媒体网关控制功能)、MRFC(Multimedia Resource Function Controller,多媒体资源功能控制器)、 IBCF(Interconnect Border Control Function,互连边界网关控制功能)、AS(Application Server,应用服务器)、RASC (资源接纳控制系统)、PDF (策略决策功能)等控制功能实体, 继而由控制功能实体将监听信息通知给其下面的传输功能实体; [0052] Step 102: CSCF according to the monitored user identification, the user being monitored is determined, and get information from the database the user is listening, the listener is then generated information and the related information content monitor a user's listening and listening Notify to other CSCF, MGCF (media gateway ControlFunction, media gateway control function), MRFC (multimedia resource function controller, multimedia resource function controller), IBCF (interconnect border control function, an interconnection border gateway control function), AS (Application Server, application server), RASC (RACS), PDF (policy decision function) and other control function entity, and then by the control function entity will monitor the information to the underlying transmission function entity;

[0053] 步骤103 :CSCF监测被监听用户的活动,判断是否有业务相关活动或业务无关活动,如果被监听用户有业务无关活动,执行步骤104,如果被监听用户有业务相关活动,则执行步骤105 ; [0053] Step 103: CSCF monitoring the monitor user activities to determine whether there business-related activities, or business-related activities, if the monitored user service independent event, step 104 is executed, if the monitored user business-related activities, step 105;

[0054] 步骤104 :被监听用户有业务无关活动,CSCF或者其他控制功能实体将业务无关事件报告给监听中心,如果被监听用户有业务相关活动,则执行步骤104 ; [0054] Step 104: The service independent monitor user activities, or other control function entity CSCF reports to the LEA service independent event, if the user has monitored business-related activities, execute step 104;

[0055] 步骤105 :被监听用户有业务相关活动,CSCF或其他控制功能实体将业务相关事件报告给监听中心。 [0055] Step 105: the user has been listening business-related activities, CSCF entity or other control functions will report to monitor business-related events center. 如果监听中心需要具体的通信内容,则由GGSN(GateWay GPRS Support Node,GPRS 网关支持节点)、A-MGF (Access MediaGateway Function,接入网关功能)、C-BGF(Core Border Gateway Function,核心边界网关功能)、MRFP (Multimedia ResourceFunction Processor, ^ UW fM M ^t M ^ ), T-MGF (Trunk Media Gateway Function,中继网关功能)、I-BGF (Interconnect Border Control Function,互连边界网关功能)等传输功能实体将通信内容发送给监听中心。 If the interception center require specific communication content by GGSN (GateWay GPRS Support Node, GPRS Gateway Support Node), A-MGF (Access MediaGateway Function, an access gateway function), C-BGF (Core Border Gateway Function, Core Border Gateway function), MRFP (Multimedia ResourceFunction Processor, ^ UW fM M ^ t M ^), T-MGF (Trunk Media gateway function, a relay gateway function), I-BGF (interconnect border Control function, interconnection border gateway function), etc. transport functional entity transmits the content to the communication LEA.

[0056] 本发明所述方法中的被监听用户可以为下述类型之一:通过接入网关接入IP多媒体子系统的用户、直接接入IP多媒体子系统的用户、与其他IP多媒体子系统用户有业务交互的用户、IP多媒体系统内的移动用户、与CS域有业务交换的用户、有补充业务的用户等。 [0056] The method of the present invention is monitored in the user may type one of the following: the user access to an access gateway via an IP multimedia subsystem, a direct user access to an IP multimedia subsystem, and other IP multimedia subsystem users, and users interact with business users, mobile users in the IP multimedia system, and the CS domain users to exchange business, there are supplementary services.

[0057] 下面针对上述六种类型的被监听用户,对本发明所述方法一一进行举例说明。 [0057] The following six types for the above user is listening, the method of the present invention is illustrated one by one.

[0058] 本发明所述方法第一实施例:对通过接入网关接入IP多媒体子系统的用户实现监听,具体监听过程为: [0058] The method of the first embodiment of the present invention: listening to achieve user access via an IP multimedia subsystem access gateway, monitor particular process:

[0059] 监听中心通过接口201向CSCF下发设控命令,其中包括被监听用户标识和监听内容,CSCF根据被监听用户标识在数据库中获得被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息,所述监听信息包括监听用户的相关信息、监听内容、 监听中心的地址等;[0060] 由于用户是通过接入网关接入IP多媒体子系统(ISDN终端,模拟用户终端),CSCF 可以将监听信息通过接口101通知给相应的AGCF,AGCF通过接口107将监听信息通知给A-MGF ;CSCF与AGCF之间的接口协议一般为扩展的SIP协议,但不限于SIP协议; [0059] LEA hair provided by the interface 201 to the CSCF control command, which includes a monitor a user identification and listening content, CSCF in accordance with the identified listening user to obtain related information is listening user in the database, and in accordance with the monitored user related content generation information and monitoring information listening, the listening information includes information user listening, listening content, address monitor center; [0060] Since users access to the access gateway via an IP multimedia subsystem (ISDN terminal, user analog terminal), the CSCF can monitor information notification interface 107 by monitoring through the notification interface 101 to the respective AGCF, AGCF information to the a-MGF; interface protocol between the CSCF and AGCF as an extension of the SIP protocol is generally, but not limited to the SIP protocol ;

[0061] 如果被监听用户发生注册、注销等业务无关动作时,需要经过CSCF处理,由CSCF 通过接口202向监听中心发送业务无关事件;如果被设置监听的用户发生业务相关动作时,也需要经过CSCF处理,由CSCF通过接口202向监听中心发送业务相关事件。 [0061] If the occurrence of intercepted user registration and cancellation service independent operation, need to go through CSCF processing, transmission service independent event to the LEA by the CSCF through an interface 202; if is set listening user occurs business-related action, also need to go through CSCF processing, send business-related events to the LEA by the CSCF 202 via the interface.

[0062] 如果需要通信内容,由AGCF控制A-MGF通过接口203将通信内容发送给监听中心。 [0062] If desired communication content controlled by the AGCF A-MGF by the communication interface 203 transmits the content to the LEA. AGCF与监听中心之间可以有或者没有控制信令。 There may be between the listener and the center AGCF or no control signaling. 如果有控制信令,业务事件与通信内容的关联字段通过控制信令携带,如果没有控制信令,关联字段通过通信内容携带。 If you have control signaling, content and communications business events related field by signaling carries, if there is no control signaling related field carries through communications.

[0063] 本发明所述方法第二实施例:对直接接入IP多媒体子系统的用户实现监听,具体监听过程为: [0063] The method of the second embodiment of the present invention: the user listens to achieve direct access to an IP multimedia subsystem, the specific listening process:

[0064] 监听中心通过接口201向CSCF下发设控命令,其中包括被监听用户标识和监听内容,CSCF根据被监听用户标识在数据库中获得被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息,所述监听信息包括监听内容、监听中心的地址等; [0064] LEA hair provided by the interface 201 to the CSCF control command, which includes a monitor a user identification and listening content, CSCF in accordance with the identified listening user to obtain related information is listening user in the database, and in accordance with the monitored user related content generation information and monitoring information listening, the listening information content comprises listening, listening center address;

[0065] 由于被监听用户为直接接入IP多媒体子系统的用户,CSCF可以通过接口105将监听信息发送给RACS,RACS上的SPDF(基于业务的策略决策功能)通过接口112将监听信息通知给C-BGF。 [0065] Since the user is listening to the user direct access to an IP multimedia subsystem, CSCF through the interface 105 to the monitor information sent RACS, SPDF (service-based policy decision function) on the monitor 112 through the interface RACS information to the C-BGF.

[0066] 如果被设置监听的用户发生注册、注销等动作时,都需要经过CSCF处理,CSCF通过接口202向监听中心发送业务无关事件;如果被监听用户发生业务相关的活动,CSCF通过接口202向监听中心发送业务相关事件。 [0066] If is set to monitor the user occur registration, cancellation and other movements, have to go through CSCF processing, CSCF sends business-related events to monitor center through an interface 202; if incurred by listening user of business-related activities, CSCF through 202 to the interface interception center to send business-related events.

[0067] 如果需要通信内容,RACS控制C-BGF通过接口203将通信内容发送到监听中心。 [0067] If desired communication content, RACS controls C-BGF sent to the LEA via interface 203 communications. C-BGF与监听中心之间可以有或者没有控制信令。 There may be between the C-BGF with or without control signaling interception center. 如果有控制信令,业务事件与通信内容的关联字段通过控制信令携带,如果没有控制信令,关联字段通过通信内容携带。 If you have control signaling, content and communications business events related field by signaling carries, if there is no control signaling related field carries through communications.

[0068] 本发明所述方法第三实施例:被监听用户为与其他IP多媒体子系统用户的业务交互的用户,具体监听过程为: [0068] The method of the third embodiment of the present invention: the user is listening to the user to interact with other services of an IP Multimedia Subsystem user specific listening process:

[0069] 监听中心通过接口201向CSCF下发设控命令,其中包括被监听用户标识和监听内容,CSCF根据被监听用户标识在数据库中获得被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息,所述监听信息包括监听内容、监听中心的地址等; [0069] LEA hair provided by the interface 201 to the CSCF control command, which includes a monitor a user identification and listening content, CSCF in accordance with the identified listening user to obtain related information is listening user in the database, and in accordance with the monitored user related content generation information and monitoring information listening, the listening information content comprises listening, listening center address;

[0070] 由于被监听用户与与其他IP多媒体子系统用户的业务交互,CSCF可以通过接口105将监听信息发送给RACS,RACS上的SPDF通过接口111将监听信息通知给I-BGF ; [0070] Since the service interaction with the user is listening to the other user's IP multimedia subsystem, CSCF through the interface 105 to the monitor information sent RACS, SPDF via the interface 111 will monitor information to the I-BGF on the RACS;

[0071] 如果被设置监听的用户发生注册、注销等动作时,需要经过CSCF处理,CSCF通过接口202向监听中心发送业务无关事件;如果被监听用户发生业务相关的活动,CSCF通过接口202向监听中心发送业务相关事件。 [0071] If is set listening user occurs registration, cancellation and other movements, need to go through CSCF treatment, CSCF sends a service independent event to the LEA via interface 202; if the occurrence of intercepted user business-related activities, CSCF through 202 to monitor the interface Center to send business-related events.

[0072] 如果需要通信内容,I-BGF通过接口203将通信内容发送到监听中心。 [0072] If desired communication content, I-BGF sent to the LEA via interface 203 to communication content. I-BGF与监听中心之间可以有或者没有控制信令。 There may be between the I-BGF with or without control signaling interception center. 如果有控制信令,业务事件与通信内容的关联字段通过控制信令携带,如果没有控制信令,关联字段通过通信内容携带。 If you have control signaling, content and communications business events related field by signaling carries, if there is no control signaling related field carries through communications.

[0073] 本发明所述方法第四实施例:被监听用户是IP多媒体系统内的移动用户,具体监听过程为: [0073] The method of the fourth embodiment of the present invention: the user is monitored mobile subscriber within an IP multimedia system, particularly to monitor the process:

[0074] 监听中心通过接口201向CSCF下发设控命令,其中包括被监听用户标识和监听内容,CSCF根据被监听用户标识在数据库中获得被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息,所述监听信息包括监听内容、监听中心的地址等; [0074] LEA hair provided by the interface 201 to the CSCF control command, which includes a monitor a user identification and listening content, CSCF in accordance with the identified listening user to obtain related information is listening user in the database, and in accordance with the monitored user related content generation information and monitoring information listening, the listening information content comprises listening, listening center address;

[0075] 由于被监听用户是IP多媒体子系统内的移动用户,CSCF可以通过接口106将监听信息通知给PDF,PDF通过接口113将监听信息通知给GGSN ; [0075] Since the user is a mobile user is listening within an IP Multimedia Subsystem, CSCF 106 through the interface will monitor information to the PDF, PDF interface 113 by the information to the listener the GGSN;

[0076] 如果被设置监听的用户发生注册、注销等动作时,需要经过CSCF处理后,由CSCF 通过接口202向监听中心发送业务无关事件;如果被监听用户发生业务相关的活动,由CSCF通过接口202向监听中心发送业务相关事件。 [0076] If is set listening user occurs registration, cancellation and other movements, where necessary CSCF treatment, the transmission service independent event to the LEA by the CSCF through an interface 202; if the occurrence of intercepted user business-related activities, from the CSCF via the interface 202 send business-related events to LEAs.

[0077] 如果需要通信内容,GGSN通过接口203将通信内容发送到监听中心。 [0077] If desired communication content, GGSN transmits to the LEA via interface 203 to communication content. GGSN与监听中心之间可以有或者没有控制信令。 There may be between the GGSN and the LEA or no control signaling. 如果有控制信令,业务事件与通信内容的关联字段通过控制信令携带,如果没有控制信令,关联字段通过通信内容携带。 If you have control signaling, content and communications business events related field by signaling carries, if there is no control signaling related field carries through communications.

[0078] 本发明第五实施例:被监听用户为与CS域有业务交换的用户,具体监听过程为: [0078] The fifth embodiment of the present invention: the user is listening to the CS domain services switching users, in particular to monitor the process of:

[0079] 监听中心通过接口201向CSCF下发设控命令,其中包括被监听用户标识和监听内容,CSCF根据被监听用户标识在数据库中获得被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息,所述监听信息包括监听内容、监听中心的地址等; [0079] LEA hair provided by the interface 201 to the CSCF control command, which includes a monitor a user identification and listening content, CSCF in accordance with the identified listening user to obtain related information is listening user in the database, and in accordance with the monitored user related content generation information and monitoring information listening, the listening information content comprises listening, listening center address;

[0080] 由于被监听用户与CS域用户有业务交互,CSCF可以通过接口102将监听信息通知给MGCF,MGCF通过接口108将监听信息通知给T-MGF。 [0080] Since the CS domain user and the monitored user interaction with a service, CSCF can be monitored via the interface 102 and notifies the MGCF, MGCF 108 via the interface will monitor information to the T-MGF.

[0081] 如果被设置监听的用户发生注册、注销等动作时,需要经过CSCF处理,CSCF通过接口202向监听中心发送业务无关事件;如果被监听用户发生业务相关的活动,CSCF通过接口202向监听中心发送业务相关事件。 [0081] If is set listening user occurs registration, cancellation and other movements, need to go through CSCF treatment, CSCF sends a service independent event to the LEA via interface 202; if the occurrence of intercepted user business-related activities, CSCF through 202 to monitor the interface Center to send business-related events.

[0082] 如果需要通信内容,T-MGF通过接口203将通信内容发送到监听中心。 [0082] If desired communication content, T-MGF sent to the LEA via interface 203 to communication content. MGCF与监听中心之间可以有或者没有控制信令。 There may be between the MGCF and the LEA or no control signaling. 如果有控制信令,业务事件与通信内容的关联字段通过控制信令携带,如果没有控制信令,关联字段通过通信内容携带。 If you have control signaling, content and communications business events related field by signaling carries, if there is no control signaling related field carries through communications.

[0083] 本发明第六实施例:被监听用户为有补充业务的用户,具体监听过程为: [0083] The sixth embodiment of the present invention: a supplementary service to a user listening users, monitor the specific process is:

[0084] 监听中心通过接口201向CSCF下发设控命令,其中包括被监听用户标识和监听内容,CSCF根据被监听用户标识在数据库中获得被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息,所述监听信息包括监听内容、监听中心的地址等; [0084] LEA hair provided by the interface 201 to the CSCF control command, which includes a monitor a user identification and listening content, CSCF in accordance with the identified listening user to obtain related information is listening user in the database, and in accordance with the monitored user related content generation information and monitoring information listening, the listening information content comprises listening, listening center address;

[0085] 由于被监听用户有补充业务,CSCF可以通过接口103将监听信息通知给MRFC,同时通过接口100将监听信息通知给AS,MRFC通过接口109将监听信息通知给MRFP,命令MRFP将通信内容发给监听中心。 [0085] Since the monitored user supplementary service, CSCF can be monitored via the interface 103 information to the MRFC, at the same time through the interface 100 will monitor information to the AS, MRFC via interface 109 will monitor information to the MRFP, command MRFP the communication content issued to LEAs.

[0086] 如果被设置监听的用户发生注册、注销等动作时,需要经过CSCF处理,由CSCF通过接口202向监听中心发送业务无关事件;如果被监听用户发生业务相关的活动,由AS通过接口202向监听中心发送业务相关事件。 [0086] If is set listening user occurs registration, cancellation and other movements, need to go through CSCF processing, transmission service independent event to the LEA by the CSCF through an interface 202; if the monitored user occurrence business-related activities, by the AS via interface 202 send business-related events to LEAs.

[0087] 如果需要通信内容,MRFC控制MRFP通过接口203将通信内容发送到监听中心。 [0087] If desired communication content, MRFC controls MRFP sent to the LEA via interface 203 communications. MRFC与监听中心之间可以有或者没有控制信令。 There may be between the LEA and the MRFC or no control signaling. 如果有控制信令,业务事件与通信内容的关联字段通过控制信令携带,如果没有控制信令,关联字段通过通信内容携带。 If you have control signaling, content and communications business events related field by signaling carries, if there is no control signaling related field carries through communications.

[0088] 通过上面描述的各种应用情况,可以处理IP多媒体子系统中的用户在各种业务情况下的业务事件报告和通信内容发送给监听中心。 [0088] Through the above described various applications, the user can handle the IP Multimedia Subsystem communication and transmitting traffic incident report content to LEA in various business situations. 对于同一个被监听用户,可以在不同的功能实体上进行监听,并且实现的架构沿用IP多媒体子系统的功能实体和接口,对于原系统影响小,可以跟随IP多媒体子系统共同扩展。 For the same user is listening, you can listen on different functional entities, and implemented the architecture follows the functional entities and interfaces IP multimedia subsystem for small affect the original system, you can follow the IP Multimedia Subsystem common extensions. [0089] 下面结合附图2对本发明实施例所述系统进行详细说明。 [0089] The system described in detail in Example 2 the drawings in conjunction with embodiments of the present invention below.

[0090] 如图2所示,本发明实施例所述系统包括监听中心,CSCF,包括:代理呼叫会话控制功能P-CSCF和服务呼叫会话控制功能S-CSCF ;与CSCF连接的多个控制功能实体,包括: AGCF, MGCF, MRFC, IBCF, AS、RASC、PDF 等;多个传输实体,包括:GGSN、C-BGF, MRFP, T-MGF, I-BGF等。 [0090] 2, the embodiment of the present invention comprises a system according to the interception center, CSCF, comprising: a proxy call session control function P-CSCF and Serving Call Session Control Function S-CSCF; a plurality of connection control function CSCF entity, comprising: AGCF, MGCF, MRFC, IBCF, AS, RASC, PDF and the like; a plurality of transmitting entities, comprising: GGSN, C-BGF, MRFP, T-MGF, I-BGF like. 其中, among them,

[0091] CSCF根据监听中心的要求对被监听用户设控,并产生监听信息,然后将监听信息通知给控制功能实体,然后由控制功能实体将所述监听信息通知给其下面的传输功能实体;呼叫会话控制功能监测被监听用户的活动,并由呼叫会话控制功能或者其他控制功能实体将被监听用户的活动报告给监听中心;且当监听中心需要通信内容,由传输功能实体将通信内容发送给监听中心。 [0091] CSCF interception center according to the requirements of the user set a monitored control, monitor and generate information, and then listening information to the control function entity, and then by the control function entity to which the monitor information to the following transmission function entity; call session control function monitors the user's activity being monitored by the call session control function entity, or other control function is to monitor the user's listening center activity report; and when monitoring center needs communication content transmitted by the functional entity to a communication content LEAs.

[0092] 其中,接口201-203为现有IP多媒体子系统的监听标准接口,接口100-113为对现有IP多媒体子系统进行扩展的内部标准接口,其中,接口201用于与监听中心完成设控, 接口202用于IP多媒体子系统向监听中心报告业务事件,接口203用于IP多媒体子系统向监听中心传送通信内容;接口100-106用来在CSCF与各控制实体传递监听信息,接口107-113用来在各控制功能实体与传输实体之间传递监听信息。 [0092] wherein the interface 201-203 to monitor existing IP Multimedia Subsystem standard interfaces, interfaces 100-113 to extend the existing internal interface standard IP multimedia subsystem, wherein the interface 201 is used to complete the LEAs set control interface 202 for an IP multimedia subsystem service report events to the interception center, an IP multimedia subsystem interface 203 for transmitting communication content to the interception center; listener interfaces 100-106 to pass information to each control entity CSCF interface 107-113 is used between the control function entity and the transport entity monitor information transmission.

[0093] 关于本发明所述系统实现监听的具体流程,在上述方法中已有详细说明,此处就不再赘述。 [0093] The present invention is implemented on the system monitor specific processes, have been described in detail in the above method, it is not repeated herein.

[0094] 综上所述,本发明提供了一种实现IP多媒体子系统监听的方法及系统,在现有IP 多媒体子系统中各功能实体间已有的成熟接口和与监听中心已有的接口上面进行了必要的扩展,实现了对IP多媒体子系统中用户业务的实时监听。 [0094] In summary, the present invention provides a method and system for implementing an IP multimedia subsystem listening, among the existing functional entities of the IP Multimedia Subsystem mature conventional interfaces and a central monitor existing interfaces above it has been necessary extensions to achieve real-time monitoring of IP multimedia subsystem user traffic. 相较于现有的系统架构和方法,增加了固定IP多媒体子系统用户、IP多媒体子系统中接入的传统用户、与CS域用户之间业务的监听。 Compared to the existing system architecture and method to increase the fixed IP multimedia subsystem user, a monitoring service between IP Multimedia Subsystem access legacy user, the CS domain user.

[0095] 以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 [0095] The above are only the preferred specific embodiments of the invention, but the scope of the present invention is not limited thereto, any skilled in the art in the art within the scope of the invention disclosed can be easily thought variations or replacements shall fall within the protection scope of the present invention. 因此,本发明的保护范围应该以权利要求书的保护范围为准。 Accordingly, the scope of the present invention, the scope of the claims should prevail.

11 11

Claims (12)

  1. 一种实现IP多媒体子系统监听的方法,其特征在于,所述方法包括:步骤A:呼叫会话控制功能接收携带有被监听用户标识和监听内容的设控命令,根据被监听用户标识获得该被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息;步骤B:呼叫会话控制功能将监听信息通知给其他控制功能实体,然后由其他控制功能实体将所述监听信息通知给其下面的传输功能实体;呼叫会话控制功能监测被监听用户的活动,并由呼叫会话控制功能或者其他控制功能实体将被监听用户的活动报告给监听中心;且当监听中心需要通信内容时,由传输功能实体将通信内容发送给监听中心。 A method for listening to achieve IP multimedia subsystem, wherein the method comprises: Step A: Call Session Control Function receiving user identifier carries the monitored and monitoring control command provided content is obtained which is monitored according to the user identifier monitor information about the user, and generates the monitor information from the related information and monitoring the content of the user being monitored; step B: call session control function to monitor information to the other control function entity, and then by the other control function entity to the listening Notify below to their transport function entity; call session control function monitor user activity is monitored by the call session control function entity, or other control function is to monitor the user's listening center activity report; and when the communication content needed interception center, entity transmits a content transmission function to monitor the communication center.
  2. 2.根据权利要求1所述的方法,其特征在于,所述被监听用户至少为下述类型之一:通过接入网关接入IP多媒体子系统的用户、直接接入IP多媒体子系统的用户、与其他IP多媒体子系统用户有业务交互的用户、IP多媒体系统内的移动用户、与CS域有业务交换的用户、有补充业务的用户。 2. The method according to claim 1, characterized in that the user is listening to at least one of the following types: an IP Multimedia Subsystem user access through the access gateway, the user direct access to an IP multimedia subsystem , there are other IP multimedia subsystem user business user interaction, mobile users in the IP multimedia system, and the CS domain users to exchange business, there are supplementary service users.
  3. 3.根据权利要求2所述的方法,其特征在于,当所述被监听用户为通过接入网关接入IP多媒体子系统的用户时,所述步骤B具体包括:呼叫会话控制功能将监听信息发送给相应的模拟网关控制功能,继而由模拟网关控制功能将监听信息发送给接入网关;判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务相关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由接入网关将通信内容发送给监听中心。 3. The method according to claim 2, wherein, when the user is listening to the access IP Multimedia Subsystem by a user access gateway, the step B comprises: monitor the call session control function information to a corresponding analog gateway control function, followed by an analog monitor gateway control function to transmit information to the access gateway; Analyzing monitored whether the user business-related activities or business related activities occur: If a user is listening service independent activity occurred, then the call session transmitting traffic control center independent event to the listener; listening occurs if the user business-related activities, the call session control function sends a service event related to the interception center and the interception center when the communication content needed by the access gateway sends the content to the communication LEAs.
  4. 4.根据权利要求2所述的方法,其特征在于,当所述被监听用户为直接接入IP多媒体子系统的用户时,所述步骤B具体包括:呼叫会话控制功能将监听信息发送给资源接纳控制系统,资源接纳控制系统上的基于业务的策略决策功能将监听信息发送给核心边界网关功能;判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务相关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由核心边界网关功能将通信内容发送给监听中心。 4. The method according to claim 2, wherein, when the user is listening to the user direct access to an IP multimedia subsystem, said step B comprises: a call session control function to send information to the resource monitor admission control systems, service-based policy decision function on the resource and admission control system will monitor sends information to the core border gateway function; determining a monitored user whether business-related activities or service occurs unrelated activities: if incurred by listening user business-related activities, the call session control function to send business-related event to listen for the center; if the occurrence monitor user business-related activities, the call session control function to send business-related event to listen for the center, and when listening centers need to communicate the contents from the core border gateway function communications content sent to the monitor center.
  5. 5.根据权利要求2所述的方法,其特征在于,当所述被监听用户为与其他IP多媒体子系统用户有业务交互的用户时,所述方法包括:呼叫会话控制功能将监听信息发送给资源接纳控制系统,资源接纳控制系统上的基于业务的策略决策功能将监听信息发送给互连边界网关功能;判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务相关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由互连边界网关功能将通信内容发送给监听中心。 The method according to claim 2, characterized in that, when the user is listening to a user when interacting with other service IP multimedia subsystem user, the method comprising: a call session control function to monitor information to RACS, service-based policy decision function on the resource and admission control system will monitor sends information to the interconnection border gateway function; determining whether the user is listening or business-related activities unrelated business activity takes place: If a user is listening occurs unrelated business activities , then sends a service call session control function to the interception center independent event; occurs if the monitored user business-related activities, the call session control function sends a service event related to the interception center and the interception center when the communication content needed by an interconnection border gateway function will send the contents of the communication center to monitor.
  6. 6.根据权利要求2所述的方法,其特征在于,当所述被监听用户为IP多媒体系统内的移动用户时,所述步骤B具体包括:呼叫会话控制功能将监听信息发送给策略决策功能,策略决策功能将监听信息通知给GPRS网关支持节点;判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务相关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由GPRS网关支持节点将通信内容发送给监听中心。 6. The method according to claim 2, wherein, when the user is listening to a mobile subscriber within an IP multimedia system, the step B comprises: a call session control function to send information to monitor policy decision function the policy decision function to monitor information to the GPRS gateway support node; determining a monitored user whether business-related activities or service occurs unrelated events: If the occurrence monitor user traffic unrelated activities, the call session control function sends traffic to the interception center unrelated incident ; if the user monitor the occurrence of business-related activities, the call session control function to send business-related event to listen for the center, and when the content of communications interception center needs, the GPRS gateway support node sends content to monitor the communication center.
  7. 7.根据权利要求1所述的方法,其特征在于,当所述监听用户为与CS域有业务交换的用户时,所述步骤B具体包括:呼叫会话控制功能将监听信息发送给媒体网关控制功能,媒体网关控制功能将监听信息发送给中继网关功能;判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务相关活动,则呼叫会话控制功能向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由中继网关功能将通信内容发送给监听中心。 The method according to claim 1, wherein, when the user is listening when user traffic exchange with a CS domain, said step B comprising: a call session control function to monitor the control information to the media gateway function, to monitor the media gateway control function information to the relay gateway function; Analyzing monitored whether the user business-related activities or business related activities occur: if a user is listening service independent event occurs, the call session control function sends a service center to monitor independent event; listening occurs if the user business-related activities, the call session control function sends a service event related to the interception center, and when the communication content needed interception center, the communication content transmitted by the relay gateway function to the interception center.
  8. 8.根据权利要求2所述的方法,其特征在于,当所述监听用户为有补充业务的用户时, 所述步骤B具体包括:呼叫会话控制功能将监听信息发送给多媒体资源功能控制器和应用服务器,多媒体资源功能控制器将监听信息发送给多媒体资源处理器;判断被监听用户是否发生业务相关活动或业务无关活动:如果被监听用户发生业务无关活动时,则呼叫会话控制功能向监听中心发送业务无关事件;如果被监听用户发生业务相关活动,则应用服务器向监听中心发送业务相关事件,并且当监听中心需要通信内容时,由多媒体资源处理器将通信内容发送给监听中心。 8. The method according to claim 2, wherein, when the user is listening supplementary service users, the step B comprises: the call session control function monitor Multimedia Resource Function and send information to the controller application server, media resource function controller transmits information to a multimedia resource monitor processor; Analyzing monitored whether the user business-related activities or business related activities occur: if a user is listening service independent event occurs, the call session control function to the interception center send business-related events; listening occurs if the user business-related activities, the application server sends business-related event to listen for the center, and when listening centers need to communicate content, multimedia resources by the communication processor sends the content to the LEA.
  9. 9. 一种实现IP多媒体子系统监听的系统,其特征在于,所述系统包括:监听中心、呼叫会话控制功能、其他控制功能实体和传输功能实体,其中,所述监听中心,用于下发携带有被监听用户标识和监听内容的设控命令给呼叫会话控制功能;所述呼叫会话控制功能,用于接收携带有被监听用户标识和监听内容的设控命令,根据被监听用户标识获得该被监听用户的相关信息,并根据被监听用户的相关信息和监听内容产生监听信息;同时,所述呼叫会话控制功能还用于监测被监听用户的活动,并根据需要将被监听用户的活动报告给监听中心;所述其他控制功能实体,用于将收到的监听信息通知给其下面的传输功能实体;同时, 当被监听用户有活动时,所述控制功能实体还用于将被监听用户的活动报告给监听中心;所述传输功能实体,当监听中心需要通信 An implement IP Multimedia Subsystem monitor system, wherein, said system comprising: interception center, call session control function, and a transmission control function entity other functional entity, wherein the interception center, adapted to deliver carrying the monitored user identification and listening content control command provided to the call session control function; said call session control function for receiving the user identifier carries the monitored and monitoring control command provided content is obtained according to the monitored user identifier the information the user listens and listens to generate and monitor information from the related information content of the user being monitored; simultaneously, said call session control function is further configured to monitor the user's monitored activity, and if necessary to the monitored user activity report listening to the center; the other control function entity, for monitoring the received information is notified to the underlying transport function entity; Meanwhile, when the monitored user activity, the control function entity is further configured to monitor the user to be activity reports to the central monitor; the transfer function entity needs to communicate when monitoring center 容时,所述传输功能实体用于将通信内容发送给监听中心。 When receiving the transmission function for sending entity to a communication content LEA.
  10. 10.根据权利要求9所述的系统,其特征在于,所述IP多媒体子系统与监听中心之间的接口为监听标准接口,呼叫会话控制功能与各控制功能实体之间的接口和各控制功能实体与其下面的传输功能实体之间的接口为扩展的IP多媒体子系统内部标准接口。 10. The system according to claim 9, characterized in that the interface between the IP Multimedia Subsystem and LEA to listen standard interface, and the interface between each of the control functions with the Call Session Control Function SCF the interface between the entity and its underlying transport functional entity is an IP multimedia subsystem extended internal standard interfaces.
  11. 11.根据权利要求9或10所述的系统,其特征在于,所述控制功能实体至少包括下述实体中的一个:接入网关控制功能、媒体网关控制功能、多媒体资源功能控制器、互连边界网关控制功能、应用服务器、资源接纳控制系统、策略决策功能。 11. The system of claim 9 or claim 10, wherein said control function entity comprises at least one of the following entities: an access gateway control function, media gateway control functions, multimedia resource function controller, interconnected border gateway control function, application server, RACS, a policy decision function.
  12. 12.根据权利要求9或10所述的系统,其特征在于,所述传输功能实体至少包括下述实体中的一个:GPRS网关支持节点、接入网关功能、核心边界网关功能、多媒体资源处理器、中继网关功能、互连边界网关功能。 12. The system of claim 9 or claim 10, wherein the transport function entity comprises at least one of the following entities: GPRS gateway support node, an access gateway function, the core border gateway function, multimedia processor resources relay gateway function, an interconnection border gateway function.
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