單擊以編輯母版標題樣式,單擊以編輯母版文本樣式,第二級,第三級,第四級,第五級,1,XXXX3G技術培訓,3G網(wǎng)絡接口及協(xié)議,集團公司研發(fā)中心,3G系列培訓教材之,3G網(wǎng)絡接口及協(xié)議集團公司研發(fā)中心3G系列培訓教材之,內容,R4接口協(xié)議概述,BICC協(xié)議簡介,Mc接口H.248協(xié)議簡介,3G呼叫流程示例,3G信令網(wǎng)絡的演進,內容R4接口協(xié)議概述,3GPP R4的接口和協(xié)議,ISUP,ISUP,RANAP,BICC,CAP,H.248,RTP/RTCP,RANAP,RANAP,ISUP,MAP,3GPP R4的接口和協(xié)議ISUPISUPRANAPBICC,R4信令組網(wǎng)-RANAP透傳,R4信令組網(wǎng)-RANAP透傳,R4信令組網(wǎng)-ISUP透傳,R4信令組網(wǎng)-ISUP透傳,內容,R4接口協(xié)議概述,BICC協(xié)議簡介,Mc接口H.248協(xié)議簡介,3G呼叫流程示例,3G信令網(wǎng)絡的演進,內容R4接口協(xié)議概述,3GPP R4的接口和協(xié)議,ISUP,ISUP,RANAP,BICC,RANAP,RANAP,ISUP,3GPP R4的接口和協(xié)議ISUPISUPRANAPBICC,BICC協(xié)議的,出現(xiàn),定位：,BICC協(xié)議使各種分組網(wǎng)絡都可以提供PSTN/ISDN的全套業(yè)務，包括所有補充業(yè)務。,優(yōu)勢：,承載無關：突破PSTN網(wǎng)絡承載能力的限制；加上與信令傳送獨立的能力，使其呼叫控制不受承載類型限制。,呼叫控制：繼承PSTN網(wǎng)絡中的ISUP,協(xié)議的控制方式，在運營級的質量要求方面具有更強的伸縮性。,BICC協(xié)議的出現(xiàn)定位：,BICC的承載分離示意圖,BICC的承載分離示意圖,Serving Node(SN),ISN:,提供了和非,BICC網(wǎng)絡或終端設備互通的接口，相當于端局,GSN,:,提供了兩個,BICC網(wǎng)絡之間關口的，相當于關口局,TSN:,提供,ISN或GSN之間,轉接功能，相當于匯接局,Outgoing,procedures,Incoming,procedures,BCF,Call Service,Function(CSF),BIWF,SERVING NODE(SN),Bearer Control Signalling,Bearer Control Signalling,Bearer,Call Control,Signalling,(BICC protocol or,other signalling,system),Call Control,Signalling,(BICC protocol or,other signalling,system),Call Bearer Control(CBC),signalling,Serving Node(SN)ISN:提供了和非BIC,SN功能實體的種類,接口業(yè)務節(jié)點(ISN=Interface Serving Node),功能實體，位于SCN網(wǎng)和BICC網(wǎng)之間，其包含CSF-N和BIWF,轉接業(yè)務節(jié)點(TSN=Transit Serving Node),功能實體，位于BICC網(wǎng)內的兩個SN之間，其包含CSF-T和BIWF,關口業(yè)務節(jié)點(GSN=Gateway Serving Node),功能實體，位于兩個網(wǎng)絡主域之間，其包含CSF-G和BIWF,SN功能實體的種類接口業(yè)務節(jié)點(ISN=Interface,Call Mediation Node,(CMN),CMN,和SN的區(qū)別是CMN不控制網(wǎng)關，SN要控制網(wǎng)關,Outgoing,procedures,Incoming,procedures,BCF,Call Service,Function(CSF),BIWF,CALL MEDIATION NODE(CMN),Bearer Control Signalling,Bearer Control Signalling,Bearer,Call Control,Signalling,(BICC,protocol),Call Control,Signalling,(BICC,protocol),Call Mediation Node(CMN)CMN和SN,BICC網(wǎng)絡的模型,Call Control,Signalling,Bearer Control,Signalling,Signalling Transport Network,BCF-J,BCF-R,SWN-2,BCF-R,SWN-3,CSF-N,ISN-B,BCF-N,(z),Backbone,Network,Connection,Link,Backbone Network Connections,Network Bearer Connection(end to end),CSF-N,BCF-N,(v),ISN-A,Bearer,Inter-working,Function,(BIWF),BCF-R,SWN-1,CSF-T,BCF-T,(w),TSN-x,CSF-G,BCF-G,(x),GSN-x,CSF-G,BCF-G,(y),GSN-y,CSF-C,CMN-x,TE,TE,TE,TE,ACN-E,Joint Domain,Bearer Inter-working,Function(BIWF),Access Network,BCF-R,ACN-w,Other,service,supplier,networks,CSF-R,BCF-A,(a),Access Control,Signalling,Other,service,supplier,networks,Call&Bear Control,(CBC)Signalling,BICC網(wǎng)絡的模型Call ControlBearer Co,BICC網(wǎng)絡定義的呼叫業(yè)務功能,呼叫業(yè)務功能節(jié)點（CSF-N）,實現(xiàn)窄帶和BICC之間的互通，向對等的CSF傳送呼叫特性，調用BCF-N實現(xiàn)窄帶業(yè)務的傳送,呼叫業(yè)務功能轉接（CSF-T）,建立和維護呼叫連接和承載連接，在對等CSF之間中繼信令，調用BCF-T實現(xiàn)窄帶業(yè)務的傳送,呼叫業(yè)務功能關口（CSF-G）,建立和維護呼叫連接和承載連接，在對等CSF之間中繼信令，調用BCF-G實現(xiàn)窄帶業(yè)務的傳送,呼叫業(yè)務功能協(xié)調（CSF-C）,提供呼叫協(xié)調和中介功能，用于中繼信令和連接，不調用任何BCF功能,BICC網(wǎng)絡定義的呼叫業(yè)務功能呼叫業(yè)務功能節(jié)點（CSF-N,BICC網(wǎng)絡相關承載控制功能,承載控制功能節(jié)點（BCF-N）,對應CSF-N,承載控制功能轉接（BCF-T）,對應CSF-T,承載控制功能關口（BCF-G）,對應CSF-G,承載控制功能中繼（BCF-R）,承載控制和承載控制信令的中繼，不對應CSF,BICC網(wǎng)絡相關承載控制功能承載控制功能節(jié)點（BCF-N）,BICC協(xié)議的模型,Signalling Transport Layer:,MTP3,用于,TDM,信令承載網(wǎng),SCTP over IP,用于,IP,信令承載網(wǎng)絡,MTP3B/,SSCOP,用于,ATM,網(wǎng)絡,STC:Signalling Transport Converter,為上層,BICC協(xié)議,提供了統(tǒng)一的信令承載接口,BICC協(xié)議的模型Signalling Transport,BICC的完整網(wǎng)絡模型,BICC的完整網(wǎng)絡模型,BICC,承載建立方式的種類,前向承載建立方式(,Forward Bearer Setup),非隧道方式,(,No Tunnel case),快速,隧道方式,(Fast Tunnel,),延遲,隧道方式,(Delayed Forward Tunnel),后向承載建立方式(,Backward Bearer Setup),非隧道方式,(,No Tunnel Case),延遲隧道方式,(Delayed Backward Tunnel),隧道：,The BICC Bearer Control Tunnelling Protocol is a generic tunnelling mechanism for the purpose of tunnelling Bearer Control Protocols(BCP)over the horizontal BICC interface between CCUs and the vertical CBC interface between CCU and BCU.,BICC,承載控制隧道協(xié)議在,BICC,水平接口（兩個呼叫控制實體間的接口）與垂直接口,CBC,（呼叫控制實體與承載控制實體間的接口）間建立一個隧道，傳輸承載控制信息。,BICC承載建立方式的種類前向承載建立方式(Forward,前向承載建立方式,前向承載建立方式,后向承載建立方式,后向承載建立方式,隧道(Tunnelling)的概念,隧道由,Q.1990進行描述,Bearer Control Messages(IPBCP)are sent embedded in BICC messages,CSF indicates to BCF if tunnelling is supported and if supported whether delayed or fast.BCF decides if tunnelling is used,Fast Tunnel:Tunnel data transferred in first IAM message,隧道(Tunnelling)的概念隧道由Q.1990進行描述,前向延遲隧道承載建立流程,前向延遲隧道,:,隧道信息(,Tunnel data),沒有包含在IAM消息中傳送到對端SX，而是在對端回,APM消息后，再通過單獨的,APM,消息傳送到對端局,前向延遲隧道承載建立流程前向延遲隧道:隧道信息(Tunnel,后向延遲隧道承載建立流程,后向延遲隧道,:,隧道信息(,Tunnel data),在對局送IAM,消息過來后，通過單獨的,APM,消息傳送到對端局,后向延遲隧道承載建立流程后向延遲隧道:隧道信息(Tunnel,The Supported Codec List is constructed and contains all the codecs,in priority order,that are offered for use in the call from the SN initiating codec negotiation.,Intermediate SN will,delete the codecs from the received Supported Codec List which it cannot support and is passed to next SN,Terminating SN selects the codec with highest priority in the received Supported Codec List that can be supported by it.This is selected codec.This is passed to previous SN.,Codec,協(xié)商流程,The Supported Codec List is co,帶Codec協(xié)商的呼叫流程,后向承載建立過程,帶Codec協(xié)商的呼叫流程后向承載建立過程,BICC呼叫釋放過程,釋放原則：誰發(fā)起承載建立，誰進行承載的釋放,BICC呼叫釋放過程釋放原則：誰發(fā)起承載建立，誰進行承載的釋,CIC-,用來標識兩局之間屬于同一呼叫的消息（,is used to identify signalling relation between peer BICC entities and associate all the PDUs to that relation.,）,消息類型message type code,強制固定長度參數(shù)部分(,the mandatory fixed part),強制可變長度參數(shù)部分(,the