006TD-SCDMA 无线网络信令流程

1、Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. TD-SCDMA无线网络信令流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 1培训目标l学完本课程后，您应该能：p了解TD-SCDMA无线网络各接口的协议栈结构p列出UE在不同场景下的工作模式和工作状态p画出TD-SCDMA无线网络呼叫流程图，并列出主要信令消息p知道硬切换和接力切换在信令流程上的区别Copyright 2006 Huawei Technologies

2、 Co., Ltd. All rights reserved. Page 2目 录l TD-SCDMA无线网络接口协议栈结构l TD-SCDMA无线网络基本信令流程2.1 网络启动流程2.2 UE登记流程2.3 寻呼流程2.4 呼叫流程2.5 切换流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 3目 录l TD-SCDMA无线网络接口协议栈结构无线网络接口协议栈结构l TD-SCDMA无线网络基本信令流程2.1 网络启动流程2.2 UE登记流程2.3 寻呼流程2.4 呼叫流程2.5 切换流程Cop

3、yright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 4TD-SCDMA系统结构UuCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 5 Uu接口协议结构Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 6无线接口MAC子层功能l逻辑信道和传输信道的映射l根据瞬时数据速率选择传输格式lUE内不同数据流的优先级处理；UE之间优先级的动

4、态调度l业务量测量l动态传输信道类型切换l加密：无线接口加密，加密方法采用国家安全局给定的方法Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 7无线接口RLC子层功能l数据分段、重组、串联、填充l差错纠正（ARQ）l流量控制l协议错误检测和恢复l加密：选择加密密钥（ CK ）Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 8PDCP子层和BMC子层功能lPDCP（Packet Data Convergence

5、 Protocol）p分组数据汇聚层协议pIP数据流的头部压缩与解压缩，提高传输效率lBMC（Broadcast/Multicast Control protocol）p广播/多播控制协议p小区广播消息的存储和发送Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 9TD-SCDMA地面接口通用协议模型lTD-SCDMA采用ATM做为地面接口传输承载技术Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 10Iub接

6、口协议栈结构Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 11lNBAP 基本过程分为公共过程和专用过程，分别对应公共链路和专用链路的信令过程p公共NBAP（NCP）主要功能n小区初始化及TDD 模式下的小区同步控制n公共传输信道控制和TDD 模式下共享信道配置p专用NBAP（CCP）主要功能n为特定的UE 增加、释放以及重新配置无线链路n专用信道控制Iub接口控制平面NBAPCopyright 2006 Huawei Technologies Co., Ltd. All rights reserv

7、ed. Page 12lIub用户平面FP是传输Iub 接口上的传输信道数据流的协议p主要功能是把无线接口的帧转化成Iub 接口的数据帧，同时产生一些控制帧进行相应的控制l传输信道包含公共传输信道和专用传输信道，它们对应的帧结构略有不同p净负荷里面的内容不同p专用信道数据帧中携带QE（质量估计），用于外环功率控制Iub接口用户平面FPCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 13Iu-CS接口协议栈结构Copyright 2006 Huawei Technologies Co., Ltd. Al

8、l rights reserved. Page 14Iu-PS接口协议栈结构Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 15Iur接口协议栈结构Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 16目 录l TD-SCDMA无线网络接口协议栈结构l TD-SCDMA无线网络基本信令流程无线网络基本信令流程2.1 网络启动流程2.2 UE登记流程2.3 寻呼流程2.4 呼叫流程2.5 切换流程Copyrigh

9、t 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 17常用术语：RAB无线接入承载 ，RB，RL无线链路 RABRBRLNodeBRNCCNUECopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 18基本概念：UE的工作模式lUE有两种基本的运行模式：空闲模式和连接模式p空闲模式：UE处于待机状态，没有业务的存在p连接模式：当UE完成RRC连接建立时，从空闲模式转移到连接模式；在连接模式下，UE有4种状态nCell-DCH适用场景

10、：连续或大量的数据传输，如打电话、下载nCell-FACH适用场景：少量的数据传输，如信令、短消息nCell-PCH适用场景：非连续业务（如网页浏览）且UE移动速度“慢”nURA-PCH适用场景：非连续业务，且UE移动速度“快”Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 19CELL_DCHCELL_FACHCELL_PCHURA_PCHIDLEDEAD搜索网络(PLMN)“驻扎”小区(camp on)侦听寻呼信道小区重选ConnectionUE状态示意图Copyright 2006 Huawei

11、 Technologies Co., Ltd. All rights reserved. Page 20第三步RRC连接建立第八步重新待机1.小区选择2.等待呼叫第六步业务进行过程中呼叫总体流程硬切换接力切换与GSM之间切换小区更新URA更新RAB/信道重配置网络侧启动1.初始化设备2.进行系统广播第二步主叫或被呼第五步RAB建立第四步NAS信令连接建立第七步RRC连接释放第一步手机开机1.PLMN选择 2.小区驻留3.位置登记4.等待呼叫Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 21目 录l

12、TD-SCDMA无线网络接口协议栈结构l TD-SCDMA无线网络基本信令流程2.1 网络启动流程网络启动流程2.2 UE登记流程2.3 寻呼流程2.4 呼叫流程2.5 切换流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 22. 3.BCCH:System Information1.System Information Update RequestUENode BRNCCNNBAPNBAPRRCRRC. 4.BCCH:System InformationRRCRRC 5.BCCH:System I

13、nformationRRCRRC2.System Information Update ResponseNBAPNBAP系统信息广播流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 23系统消息块结构Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 24系统消息主要功能lMIB：PLMN标识及SB (schedule block)/SIB (system info block)的调度信息lSB1、SB2：SI

14、B的调度信息lSIB1：NAS层的系统信息和UE定时器/计数器lSIB2：URA的信息lSIB3：用于小区选择和重选的参数lSIB4：连接模式下用于小区选择和重选的参数Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 25系统消息主要功能lSIB5：用于小区公共物理信道配置的参数lSIB6：连接模式下用于小区公共物理信道配置的参数lSIB7：上行链路干扰和动态持续电平等信息lSIB8、SIB9、SIB10：用于WCDMA系统lSIB11：测量控制信息，即邻区列表lSIB12：连接模式下的测量控制信息，即

15、邻区列表Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 26系统消息主要功能lSIB13、SIB14：用于WCDMA系统lSIB15：用于定位业务的信息lSIB16：GSMTD-SCDMA系统间切换所需要的预配置信息lSIB17：连接模式下共享物理信道的配置信息（TDD）lSIB18：邻近小区PLMN信息，用于运营商网络共享Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 27目 录l TD-SCDMA无线网络

16、接口协议栈结构l TD-SCDMA无线网络基本信令流程2.1 网络启动流程2.2 UE登记流程登记流程2.3 寻呼流程2.4 呼叫流程2.5 切换流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 28UE为登记发起RRC连接建立RNC决定在公共信道公共信道上建立RRC连接，并且使用已经配置好的公共信道资源RRC建立流程（在公共信道CCH上）RRC Connection RequestRRC Connection SetupRRC Connection Setup CompleteNodeBRNCUE

17、Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 29UE与CN之间交换DT消息，此处是位置更新消息NAS信令建立流程RRC: Initial Direct TransferRRC: DTRANAP: Initial UE MessageRNCCNUERANAP: DTRRC: DTRANAP: DTCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 30 CN UE DT (Location Updating R

18、equest) ( Location Updating Type: Normal location updating ) DT (Location Updating Accept ) DT (TMSI reallocation complete) 正常位置更新过程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 31 CN UE DT (Location Updating Request) ( Location Updating Type: Period updating ) DT (Location

19、Updating Accept ) DT (TMSI reallocation complete) 周期性位置更新过程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 32 CN UE DT (Location Updating Request) ( Location Updating Type: IMSI Attach) DT (Location Updating Accept ) DT (TMSI reallocation complete) IMSI ATTACHCopyright 2006 Hu

20、awei Technologies Co., Ltd. All rights reserved. Page 33RRC释放流程（在公共信道CCH上）RRC: RRC Connection Release CompleteRNCCNUEIu Release CompleteRRC: RRC Connection ReleaseIu Release CommandUE在登记过程中，没有使用专用的用户面资源；直接释放信令链路，登记过程结束Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 34目 录l TD-S

21、CDMA无线网络接口协议栈结构l TD-SCDMA无线网络基本信令流程2.1 网络启动流程2.2 UE登记流程2.3 寻呼流程寻呼流程2.4 呼叫流程2.5 切换流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 35CN发起的寻呼流程l空闲模式空闲模式下的寻呼，采用寻呼类型寻呼类型1 （Paging Type 1）MSC或或SGSNUENodeB1RNC1NodeB2RNC2 PagingPaging Type1 Paging Type1 PagingRANAPRANAPRANAPRANAPRRCR

22、RCRRCCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 36CN发起的寻呼流程l连接模式连接模式下的寻呼，采用寻呼类型寻呼类型2 （Paging Type 2）MSC或或SGSNUE PagingPaging Type2 RANAPRRCNodeB1RNC1RANAPRRCCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 37RAN发起的寻呼流程UEPaging Type1 RRCNodeB1RNC1RRCl

23、场景1：系统消息发生改变后，通知UE读取更新后的系统信息l场景2：触发处于CELL_PCH、URA_PCH状态下的UE进行状态迁移p做为对该寻呼的应答，UE会相应的发起一次小区更新或URA更新Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 38目 录l TD-SCDMA无线网络接口协议栈结构l TD-SCDMA无线网络基本信令流程2.1 网络启动流程2.2 UE登记流程2.3 寻呼流程2.4 呼叫流程呼叫流程2.5 切换流程Copyright 2006 Huawei Technologies Co.,

24、 Ltd. All rights reserved. Page 39UE为呼叫发起RRC连接建立，RNC决定在专用信道专用信道上建立RRC连接RRC建立流程（在专用信道DCH上）RRC Connection RequestRRC Connection SetupRRC Connection Setup CompleteRadio Link Setup RequestRadio Link Setup ResponseNodeBRNCUEERQ (AAL2_EST_Request)ECF (AAL2_EST_Confirm)Copyright 2006 Huawei Technologies Co

25、., Ltd. All rights reserved. Page 40NAS信令建立流程UE与与CN之间交换之间交换DT消息，如业务请求、连接建立、鉴权等消息，如业务请求、连接建立、鉴权等鉴权、安全模式是可选过程，由运营决定是否使用RRC: Initial Direct TransferRRC: DTRANAP: Initial UE MessageRNCCNUERANAP: DTRRC: DTRANAP: DTCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 41UEMSCRRC and NAS s

26、ignaling Connection Setup UEMSCRRC and NAS signaling Connection Setup UE 做被叫做被叫UE 做主叫做主叫CM Service RequestAuthentication RequestAuthentication ResponseSecurity Mode Command Security Mode CommandRAB Assignment SetupCall Proceeding Alerting Connect Connect ACKDisconnectReleaseRelease CompletePaging Re

27、sponseAuthentication RequestAuthentication ResponseSecurity Mode Command Security Mode CommandRAB Assignment SetupCall Confirmed Alerting Connect Connect ACKDisconnectReleaseRelease CompletePagingNAS层信令（CS）Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 42UESGSNRRC and NAS sig

28、naling Connection Setup UESGSNPagingRRC and NAS signaling Connection Setup Service RequestAuthentication RequestAuthentication ResponseSecurity Mode Command Security Mode CommandRAB Assignment Activate PDP Context RequestActivate PDP Context AcceptDeactivate PDP Context RequestDeactivate PDP Context

29、 AcceptPaging ResponseAuthentication RequestAuthentication ResponseSecurity Mode Command Security Mode CommandRAB Assignment Request PDP Context ActivationActivate PDP Context RequestActivate PDP Context AcceptDeactivate PDP Context RequestDeactivate PDP Context AcceptNAS层信令（PS）UE 做被叫做被叫UE 做主叫做主叫Cop

30、yright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 43NodeBUECNRNCRAB Ass ReqAAL2 Setup ReqAAL2 Setup RepRB SetupRB Setup CompleteRAB Ass RepRRCRRCNBAPNBAPQ.AAL2Q.AAL2FPFPNBAPRANAPQ.AAL2Q.AAL2NBAPNBAPQ.AAL2Q.AAL2FPFPRRCNBAPRRCRANAPRANAPQ.AAL2Q.AAL2RANAPRL Recfg PrepRL Recfg ReadyAAL2

31、 Setup ReqAAL2 Setup RepDL SyncUL SyncRL Recfg CommitRAB承载通道建立流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 44UE to UE (1)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 45UE to UE (2)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.

32、Page 46UE to UE (3)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 47UE to UE (4)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 48UE to UE (5)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 49UE to UE (6)Copyright 2006 Huawei Tech

33、nologies Co., Ltd. All rights reserved. Page 50UE to UE (7)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 51UE发起的PDP激活 (1)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 52UE发起的PDP激活 (2)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. P

34、age 53网络侧发起的PDP激活 (1)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 54网络侧发起的PDP激活 (2)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 55目 录l TD-SCDMA无线网络接口协议栈结构l TD-SCDMA无线网络基本信令流程2.1 网络启动流程2.2 UE登记流程2.3 寻呼流程2.4 呼叫流程2.5 切换流程切换流程Copyright 2006 Huawei Tech

35、nologies Co., Ltd. All rights reserved. Page 56硬切换：Inter-cell/Intra-NodeBRNCUENodeBCommunicating Measurement ReportDecide to HORadio Link Setup RequestRadio Link Setup ResponseERQ (AAL2_EST_REQ)ECF (AAL2_EST_CFM)Voice Data (via old cell)Physical Channel Reconfiguration (via old cell)Copyright 2006 H

36、uawei Technologies Co., Ltd. All rights reserved. Page 57硬切换：Inter-cell/Intra-NodeBRNCUENodeB Physical Channel Reconfiguration Complete (via new cell)Radio Link Deletion RequestRadio Link RestorationREL (AAL2_REL_REQ)RLC (AAL2_REL_CFM)Radio Link Deletion ResponseCommunicatingSYNC UL (to new cell)FPA

37、CH (from new cell)Voice Data (to new cell, after active time)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 58硬切换：Inter-NB /Intra-RNCRNCUECommunicating Measurement ReportDecide to HORadio Link Setup RequestRadio Link Setup ResponseERQ (AAL2_EST_REQ)ECF (AAL2_EST_CFM)Voice Dat

38、a (via old cell)Physical Channel Reconfiguration (via SNB)SNBTNBCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 59SNBTNB硬切换：Inter-NB /Intra-RNCRNCUE Physical Channel Reconfiguration Complete (via TNB)Radio Link Deletion RequestRadio Link RestorationREL (AAL2_REL_REQ)RLC (AAL2_REL_CFM)Radio Link Deletion ResponseCommunicatingSYNC ULFPACHVoice Data (to TNB, after active time)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 60接力切换：Inter-cell/Intra-NodeBRNCUENodeBCommunicating Measurement ReportDecide to HORadio Link Addition RequestRa