VoLTE 交流材料

Security Level:Slidetitle:40-47ptSlidesubtitle:26-30ptColor:whiteCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialHUAWEITECHNOLOGIESCO.,LTD.VoLTE信令流程培训信令流程培训Author:Jinyu00114921Version:V1.0(20150209)HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential2目目 录录SIP简介简介总体流程总体流程VOLTE注册流程注册流程基本呼叫流程基本呼叫流程SRVCC流程流程Page2HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential3SIP简介（简介（Session Initiation Protocol）VoLTE使用SIP协议用来建立、修改和删除会话，在呼叫流程中，SIP消息对应类似2/3G呼叫过程中的CALLSETUP、SETUP、ALERTING、CONNECT等；SIP消息承载在QCI5上，对eNodeB来说是业务数据包，不在信令面；QCI5承载承载HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential4目目 录录SIP简介简介总体流程总体流程VOLTE注册流程注册流程基本呼叫流程基本呼叫流程SRVCC流程流程Page4HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential5总体流程总体流程网元介绍网元介绍HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential6IMS引入的网元引入的网元(部分部分)Page6涉及网元涉及网元功能功能P-CSCF作为IMS拜访网络的入口，负责将UE侧发送的消息向用户的归属网络转发，以及将来源于用户归属网络的消息向UE侧转发。I-CSCF作为IMS归属网络的入口，负责查询IMS-HSS，为用户选择一个合适的S-CSCF提供服务。S-CSCF从IMS-HSS上下载用户的签约信息，对基本注册进行鉴权。代替用户发起第三方注册。定期将用户的注册状态，发送给订阅了用户注册状态的UE、P-CSCF。SBC边界控制功能，包括防攻击、NAT穿越、IPv4/IPv6地址转换融合HLR/HSSIMS-HSS提供IMS网络中的HSS（Home Subscriber Server）功能，存储LTE用户在IMS网络中的签约信息。SAE-HSS提供EPC网络中的HSS功能，存储LTE用户在EPC网络中的签约信息。HLR提供移动通信系统电路域核心网和分组域核心网的HLR（Home Location Register）功能，存储LTE用户在电路域核心网和分组域核心网中的签约信息。MGCF提供IMS网络与传统PSTN，PLMN网络之间的互通功能PCRF提供Qos策略和计费控制功能HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential7SIP信息含义信息含义Page7请求消息请求消息消息含义消息含义INVITE发起会话请求，邀请用户加入一个会话，会话描述含于消息体中。对于两方呼叫来说，主叫方在会话描述中指示其能够接受的媒体类型及其参数。被叫方必需在成功响应消息的消息体中指明其希望接受哪些媒体，还可以指示其将发送的媒体。如果收到的是关于参加会议的邀请，被叫方可以根据Call-ID或者会话描述中的标识确定用户已经加入该会议，并返回成功响应消息。ACK证实已收到对于INVITE请求的最终响应。该消息仅和INVITE消息配套使用。BYE结束会话CANCEL取消尚未完成的请求，对于已完成的请求（即已收到最终响应的请求，比如200 OK）则没有影响。REGISTER注册。在IMS中一般用于用户发起注册、注销、刷新注册等请求。OPTION查询服务器能力。在IMS中一般用于设备间心跳状态检测，进一步信息请参考 RFC4028。PRACK临时可靠性响应，证实已收到1XX临时响应，进一步信息请参考RFC 3262。INFO传递额外信息请求。在IMS中一般用于放音指示、二次收号，进一步信息请参考RFC 2976。SUBSCRIBE订阅请求。在IMS中一般用于用户注册状态、ua-profile的订阅，进一步信息请参考RFC 3265。NOTIFY订阅通知请求。在IMS中，NOTIFY消息是与SUBSCRIBE消息配合使用的，NOTIFY为SUBSCRIBE的最终响应，进一步信息请参考RFC 3265。UPDATE会话建立早期或确定阶段修改会话属性，更新会话参数请求。在IMS中一般用于媒体更新、会话心跳检测，进一步信息请参考RFC 3311。MESSAGE立即消息。在IMS中一般用于留言灯指示（MWI）业务，进一步信息请参考RFC 3428。REFER指示接收方联系第三方请求，REFER请求的发送者指引其接收者去访问REFER请求中所标识的资源。在IMS中一般用于点击类呼叫、呼叫转移、会议等业务，进一步信息请参考RFC 3515。PUBLISH客户端向状态代理发布它的事件状态。在IMS中暂无应用，进一步信息请参考RFC 3903。序号序号状态码状态码消息功能消息功能1XX临时响应表示已经接收到请求消息，正在对其进行处理，一次呼叫中临时响应可以有多个。100表示请求消息已收到，可以防止对局请求超时重传。180振铃181呼叫正在前转。在IMS中主要用于前转业务。182排队183呼叫处理中2XX成功响应表示请求已经被成功接受、处理。200OK202Accepted，指示订阅请求已被初步接受，但还需等到最终决策，最终决策将在NOTIFY请求中给出。进一步信息请参考RFC 3265。3XX重定向响应表示需要采取进一步动作，以完成该请求。300多重选择301永久迁移此处省略一些返回码此处省略一些返回码4XX客户端错误表示请求消息中包含语法错误或者SIP服务器不能完成对该请求消息的处理。400错误请求401无权402要求付款403禁止404没有发现此处省略很多返回码此处省略很多返回码5XX服务端错误表示SIP服务器故障不能完成对正确消息的处理。500内部服务器错误501没实现的此处省略一些返回码此处省略一些返回码6XX全局故障表示请求不能在任何SIP服务器上实现。600全忙603拒绝604都不存在606不接受HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential8总体流程总体流程承载承载VoLTE的信令IMS消息使用QCI为5的Non-GBRQoS、语音使用QCI为1的GBR、视频使用QCI为2的GBR终端业务承载建立对应关系：QCIResource TypePriorityPacket Delay Budget Packet Error Loss RateExample Services1GBR2100ms10-2ConversationalVoice24150ms10-3ConversationalVideo(LiveStreaming)5No-GBR1100ms10-6IMSSignalling不支持不支持VoLTE的的UE支持支持VoLTE的的UE未进行VoLTE会话进行VoLTE语音通话进行VoLTE视频通话QCI9QCI5+QCI9QCI1+QCI5+QCI9QCI1+QCI2+QCI5+QCI9HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential9VOLTE总体流程总体流程HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential10目目 录录SIP简介简介总体流程总体流程VOLTE注册流程注册流程基本呼叫流程基本呼叫流程SRVCC流程流程Page10HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential11VOLTE注册流程注册流程EPS attach（1）VoLTE首先在EPS进行联合attach，与普通CSFB一致，再建立QCI5承载：UE在attachReq中携带SRVCC能力及VOLTE能力：EPC在attachAcp中通知UE，网络侧具有VOLTE-IMS，决定UE紧接下来是否发起QCI5承载建立：Defaultbearer(GBR)QCI=8/9InternetAPNDefaultbearer(Non-GBR)QCI=5IMSAPNHUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential12eNodeBMMEPDN Connectivity RequestRRC UL Information Transfer S1AP UL NAS TRANS ERAB SETUP REQ(QCI5)RRC Connection Recfg(ADD EPS Bear)Activate Default EPS Bearer Context request(QCI5)RRC UL Information Transfer S1AP UL NAS TRANS RRC Connection Recfg CmpActivate Default EPS Bearer Context AcceptERAB SETUP RSP VOLTE注册流程注册流程EPS attach（2）无线侧观察QCI5承载建立流程：HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential13VOLTE注册流程注册流程IMS注册注册至此，手机已ready，可以正常呼叫了！Register:UE读取USIM卡信息,向IMS发起注册流程；401:CSCF从IMS-HSS获取鉴权信息，发给UE；Register:UE发起第二个register信息，携带终端鉴权信息；200 OK:鉴权通过后，网络侧给终端返回注册成功信息；QCI5建立成功后，UE将发起到IMS的注册流程：HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential14目目 录录SIP简介简介总体流程总体流程VOLTE注册流程注册流程基本呼叫流程基本呼叫流程基本VOLTE呼叫挂机拆线短消息SRVCC流程流程Page14HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential15基本呼叫流程（基本呼叫流程（E2E）不同SIP交互，PCRF策略等会有不同的业务流程HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential16基本呼叫流程（基本呼叫流程（SIP）Invite：UE向网侧发起INVITE请求100 Trying：invite响应183 session progress：网络侧在做资源预留preconditionPRACK：UE等待网络资源分配UPDATE：UE收到QCI=1等承载建立后就发UPDATE180 Ringing：被叫响铃后发180Ringing，网络侧转发主叫至此，手机呼叫接通！再往后就是QCI1 RTP语音包交换HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential17基本呼叫流程基本呼叫流程挂机拆线挂机拆线HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential18呼叫流程呼叫流程 时延定义时延定义Page18HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential19呼叫流程呼叫流程 时延定义时延定义(续续)Page19主叫接通时延：Time(180ringing)-Time(InviteSDP)，从拨打电话到听到振铃的时间被叫接通时延：Time(ACK)-Time(200OKSDP)，统计的是摘机的时延。端到端呼叫建立时延=Time(180ringing)-Time(InviteSDP)+Time(ACK)-Time(200OKSDP)HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential20目目 录录背景知识背景知识IMS域注册流程域注册流程呼叫流程呼叫流程SRVCC流程流程Page20HUAWEITECHNOLOGIESCO.,LTD.Slidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialToprightcornerforfield-mark,customerorpartnerlogotypes.-Thefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.HuaweiConfidential21SRVCC流程流程Page21TCopyright2011 Huawei Technologies Co.,Ltd.All Rights Reserved.The information in this document may contain predictive statements including,without limitation,statementsregardingthefuturefinancialandoperatingresults,futureproductportfolio,newtechnology,etc.Thereareanumberoffactorsthatcouldcauseactualresultsanddevelopmentstodiffermateriallyfromthoseexpressedorimpliedinthepredictivestatements.Therefore,suchinformationisprovidedforreference purpose only and constitutes neither an offer nor an acceptance.Huawei maychange theinformationatanytimewithoutnotice.