TD-SCDMA無線網(wǎng)絡(luò)信令流程

1、Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. TD-SCDMA無線網(wǎng)絡(luò)信令流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 1培訓(xùn)目標(biāo)l學(xué)完本課程后，您應(yīng)該能：p了解TD-SCDMA無線網(wǎng)絡(luò)各接口的協(xié)議棧結(jié)構(gòu)p列出UE在不同場景下的工作模式和工作狀態(tài)p畫出TD-SCDMA無線網(wǎng)絡(luò)呼叫流程圖，并列出主要信令消息p知道硬切換和接力切換在信令流程上的區(qū)別Copyright 2006 Huawei Technologies

2、 Co., Ltd. All rights reserved. Page 2目 錄l TD-SCDMA無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)l TD-SCDMA無線網(wǎng)絡(luò)基本信令流程2.1 網(wǎng)絡(luò)啟動(dòng)流程2.2 UE登記流程2.3 尋呼流程2.4 呼叫流程2.5 切換流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 3目 錄l TD-SCDMA無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)l TD-SCDMA無線網(wǎng)絡(luò)基本信令流程2.1 網(wǎng)絡(luò)啟動(dòng)流程2.2 UE登記流程2.3 尋呼流程2.4 呼叫流程2.5 切換流程Cop

3、yright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 4TD-SCDMA系統(tǒng)結(jié)構(gòu)UuCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 5 Uu接口協(xié)議結(jié)構(gòu)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 6無線接口MAC子層功能l邏輯信道和傳輸信道的映射l根據(jù)瞬時(shí)數(shù)據(jù)速率選擇傳輸格式lUE內(nèi)不同數(shù)據(jù)流的優(yōu)先級(jí)處理；UE之間優(yōu)先級(jí)的動(dòng)

4、態(tài)調(diào)度l業(yè)務(wù)量測量l動(dòng)態(tài)傳輸信道類型切換l加密：無線接口加密，加密方法采用國家安全局給定的方法Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 7無線接口RLC子層功能l數(shù)據(jù)分段、重組、串聯(lián)、填充l差錯(cuò)糾正（ARQ）l流量控制l協(xié)議錯(cuò)誤檢測和恢復(fù)l加密：選擇加密密鑰（ CK ）Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 8PDCP子層和BMC子層功能lPDCP（Packet Data Convergence

5、 Protocol）p分組數(shù)據(jù)匯聚層協(xié)議pIP數(shù)據(jù)流的頭部壓縮與解壓縮，提高傳輸效率lBMC（Broadcast/Multicast Control protocol）p廣播/多播控制協(xié)議p小區(qū)廣播消息的存儲(chǔ)和發(fā)送Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 9TD-SCDMA地面接口通用協(xié)議模型lTD-SCDMA采用ATM做為地面接口傳輸承載技術(shù)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 10什么是A

6、TM？lATM：異步轉(zhuǎn)移模式p一種快速分組交換技術(shù)、采用統(tǒng)計(jì)復(fù)用方式p一種結(jié)合了電路交換和分組交換的各自優(yōu)點(diǎn)的技術(shù)p能傳送各種類型的業(yè)務(wù)（話音、數(shù)據(jù)、圖像等）分組交換分組交換分組交換分組交換分組交換分組交換1231231322132213123123分組交換分組交換分組交換分組交換分組交換分組交換分組交換分組交換分組交換分組交換分組交換分組交換分組交換分組交換1231231322132213123123分組交換分組交換分組交換分組交換分組交換分組交換分組交換分組交換Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved.

7、 Page 11AAL適配方式分類l在TD-SCDMA 系統(tǒng)中，主要使用AAL2承載和AAL5承載業(yè)務(wù)業(yè)務(wù)定時(shí)方式定時(shí)方式連接方式連接方式適配類型適配類型CBR同步面向連接AAL1VBR-RTVBR-NRT同步面向連接AAL2UBR異步面向連接AAL3/4UBR異步無連接AAL5Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 12Iub接口協(xié)議棧結(jié)構(gòu)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 13lNBA

8、P 基本過程分為公共過程和專用過程，分別對(duì)應(yīng)公共鏈路和專用鏈路的信令過程p公共NBAP（NCP）主要功能n小區(qū)初始化及TDD 模式下的小區(qū)同步控制n公共傳輸信道控制和TDD 模式下共享信道配置p專用NBAP（CCP）主要功能n為特定的UE 增加、釋放以及重新配置無線鏈路n專用信道控制Iub接口控制平面NBAPCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 14lIub用戶平面FP是傳輸Iub 接口上的傳輸信道數(shù)據(jù)流的協(xié)議p主要功能是把無線接口的幀轉(zhuǎn)化成Iub 接口的數(shù)據(jù)幀，同時(shí)產(chǎn)生一些控制幀進(jìn)行相應(yīng)的

9、控制l傳輸信道包含公共傳輸信道和專用傳輸信道，它們對(duì)應(yīng)的幀結(jié)構(gòu)略有不同p凈負(fù)荷里面的內(nèi)容不同p專用信道數(shù)據(jù)幀中攜帶QE（質(zhì)量估計(jì)），用于外環(huán)功率控制Iub接口用戶平面FPCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 15Iu-CS接口協(xié)議棧結(jié)構(gòu)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 16Iu-PS接口協(xié)議棧結(jié)構(gòu)Copyright 2006 Huawei Technologies Co., Ltd.

10、All rights reserved. Page 17Iur接口協(xié)議棧結(jié)構(gòu)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 18目 錄l TD-SCDMA無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)l TD-SCDMA無線網(wǎng)絡(luò)基本信令流程無線網(wǎng)絡(luò)基本信令流程2.1 網(wǎng)絡(luò)啟動(dòng)流程2.2 UE登記流程2.3 尋呼流程2.4 呼叫流程2.5 切換流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 19常用術(shù)語：RAB，RB，RLRABR

11、BRLNodeBRNCCNUECopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 20基本概念：UE的工作模式lUE有兩種基本的運(yùn)行模式：空閑模式和連接模式p空閑模式：UE處于待機(jī)狀態(tài)，沒有業(yè)務(wù)的存在p連接模式：當(dāng)UE完成RRC連接建立時(shí)，從空閑模式轉(zhuǎn)移到連接模式；在連接模式下，UE有4種狀態(tài)nCell-DCH適用場景：連續(xù)或大量的數(shù)據(jù)傳輸，如打電話、下載nCell-FACH適用場景：少量的數(shù)據(jù)傳輸，如信令、短消息nCell-PCH適用場景：非連續(xù)業(yè)務(wù)（如網(wǎng)頁瀏覽）且UE移動(dòng)速度“慢”nURA-PCH適用

12、場景：非連續(xù)業(yè)務(wù)，且UE移動(dòng)速度“快”Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 21CELL_DCHCELL_FACHCELL_PCHURA_PCHIDLEDEAD搜索網(wǎng)絡(luò)(PLMN)“駐扎”小區(qū)(camp on)偵聽尋呼信道小區(qū)重選ConnectionUE狀態(tài)示意圖Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 22第三步RRC連接建立第八步重新待機(jī)1.小區(qū)選擇2.等待呼叫第六步業(yè)務(wù)進(jìn)行過程中呼叫總體

13、流程硬切換接力切換與GSM之間切換小區(qū)更新URA更新RAB/信道重配置網(wǎng)絡(luò)側(cè)啟動(dòng)1.初始化設(shè)備2.進(jìn)行系統(tǒng)廣播第二步主叫或被呼第五步RAB建立第四步NAS信令連接建立第七步RRC連接釋放第一步手機(jī)開機(jī)1.PLMN選擇 2.小區(qū)駐留3.位置登記4.等待呼叫Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 23目 錄l TD-SCDMA無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)l TD-SCDMA無線網(wǎng)絡(luò)基本信令流程2.1 網(wǎng)絡(luò)啟動(dòng)流程網(wǎng)絡(luò)啟動(dòng)流程2.2 UE登記流程2.3 尋呼流程2.4 呼叫流程2.5 切換流程Copyri

14、ght 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 24. 3.BCCH:System Information1.System Information Update RequestUENode BRNCCNNBAPNBAPRRCRRC. 4.BCCH:System InformationRRCRRC 5.BCCH:System InformationRRCRRC2.System Information Update ResponseNBAPNBAP系統(tǒng)信息廣播流程Copyright 2006 Huawei Techn

15、ologies Co., Ltd. All rights reserved. Page 25系統(tǒng)消息塊結(jié)構(gòu)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 26系統(tǒng)消息主要功能lMIB：PLMN標(biāo)識(shí)及SB (schedule block)/SIB (system info block)的調(diào)度信息lSB1、SB2：SIB的調(diào)度信息lSIB1：NAS層的系統(tǒng)信息和UE定時(shí)器/計(jì)數(shù)器lSIB2：URA的信息lSIB3：用于小區(qū)選擇和重選的參數(shù)lSIB4：連接模式下用于小區(qū)選擇和重選的參數(shù)Copyright 2

16、006 Huawei Technologies Co., Ltd. All rights reserved. Page 27系統(tǒng)消息主要功能lSIB5：用于小區(qū)公共物理信道配置的參數(shù)lSIB6：連接模式下用于小區(qū)公共物理信道配置的參數(shù)lSIB7：上行鏈路干擾和動(dòng)態(tài)持續(xù)電平等信息lSIB8、SIB9、SIB10：用于WCDMA系統(tǒng)lSIB11：測量控制信息，即鄰區(qū)列表lSIB12：連接模式下的測量控制信息，即鄰區(qū)列表Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 28系統(tǒng)消息主要功能lSIB13、SIB

17、14：用于WCDMA系統(tǒng)lSIB15：用于定位業(yè)務(wù)的信息lSIB16：GSMTD-SCDMA系統(tǒng)間切換所需要的預(yù)配置信息lSIB17：連接模式下共享物理信道的配置信息（TDD）lSIB18：鄰近小區(qū)PLMN信息，用于運(yùn)營商網(wǎng)絡(luò)共享Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 29目 錄l TD-SCDMA無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)l TD-SCDMA無線網(wǎng)絡(luò)基本信令流程2.1 網(wǎng)絡(luò)啟動(dòng)流程2.2 UE登記流程登記流程2.3 尋呼流程2.4 呼叫流程2.5 切換流程Copyright 2006 Huawe

18、i Technologies Co., Ltd. All rights reserved. Page 30UE為登記發(fā)起RRC連接建立RNC決定在公共信道公共信道上建立RRC連接，并且使用已經(jīng)配置好的公共信道資源RRC建立流程（在公共信道CCH上）RRC Connection RequestRRC Connection SetupRRC Connection Setup CompleteNodeBRNCUECopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 31UE與CN之間交換DT消息，此處是位置更新消

19、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 32 CN UE DT (Location Updating Request) ( Location Updating Type: Normal location updating ) DT (Location Updating Accept ) DT

20、(TMSI reallocation complete) 正常位置更新過程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 33 CN UE DT (Location Updating Request) ( Location Updating Type: Period updating ) DT (Location Updating Accept ) DT (TMSI reallocation complete) 周期性位置更新過程Copyright 2006 Huawei Technologies C

21、o., Ltd. All rights reserved. Page 34 CN UE DT (Location Updating Request) ( Location Updating Type: IMSI Attach) DT (Location Updating Accept ) DT (TMSI reallocation complete) IMSI ATTACHCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 35RRC釋放流程（在公共信道CCH上）RRC: RRC Connection R

22、elease CompleteRNCCNUEIu Release CompleteRRC: RRC Connection ReleaseIu Release CommandUE在登記過程中，沒有使用專用的用戶面資源；直接釋放信令鏈路，登記過程結(jié)束Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 36目 錄l TD-SCDMA無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)l TD-SCDMA無線網(wǎng)絡(luò)基本信令流程2.1 網(wǎng)絡(luò)啟動(dòng)流程2.2 UE登記流程2.3 尋呼流程尋呼流程2.4 呼叫流程2.5 切換流程Copyright 20

23、06 Huawei Technologies Co., Ltd. All rights reserved. Page 37CN發(fā)起的尋呼流程l空閑模式空閑模式下的尋呼，采用尋呼類型尋呼類型1 （Paging Type 1）MSC或或SGSNUENodeB1RNC1NodeB2RNC2 PagingPaging Type1 Paging Type1 PagingRANAPRANAPRANAPRANAPRRCRRCRRCCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 38CN發(fā)起的尋呼流程l連接模式連接模

24、式下的尋呼，采用尋呼類型尋呼類型2 （Paging Type 2）MSC或或SGSNUE PagingPaging Type2 RANAPRRCNodeB1RNC1RANAPRRCCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 39RAN發(fā)起的尋呼流程UEPaging Type1 RRCNodeB1RNC1RRCl場景1：系統(tǒng)消息發(fā)生改變后，通知UE讀取更新后的系統(tǒng)信息l場景2：觸發(fā)處于CELL_PCH、URA_PCH狀態(tài)下的UE進(jìn)行狀態(tài)遷移p做為對(duì)該尋呼的應(yīng)答，UE會(huì)相應(yīng)的發(fā)起一次小區(qū)更新或URA更

25、新Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 40目 錄l TD-SCDMA無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)l TD-SCDMA無線網(wǎng)絡(luò)基本信令流程2.1 網(wǎng)絡(luò)啟動(dòng)流程2.2 UE登記流程2.3 尋呼流程2.4 呼叫流程呼叫流程2.5 切換流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 41UE為呼叫發(fā)起RRC連接建立，RNC決定在專用信道專用信道上建立RRC連接RRC建立流程（在專用信道DCH上）RRC Co

26、nnection RequestRRC Connection SetupRRC Connection Setup CompleteRadio Link Setup RequestRadio Link Setup ResponseNodeBRNCUEERQ (AAL2_EST_Request)ECF (AAL2_EST_Confirm)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 42NAS信令建立流程UE與與CN之間交換之間交換DT消息，如業(yè)務(wù)請(qǐng)求、連接建立、鑒權(quán)等消息，如業(yè)務(wù)請(qǐng)求、連接建立、鑒權(quán)等

27、鑒權(quán)、安全模式是可選過程，由運(yùn)營決定是否使用RRC: Initial Direct TransferRRC: DTRANAP: Initial UE MessageRNCCNUERANAP: DTRRC: DTRANAP: DTCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 43UEMSCRRC and NAS signaling Connection Setup UEMSCRRC and NAS signaling Connection Setup UE 做被叫做被叫UE 做主叫做主叫CM Serv

28、ice RequestAuthentication RequestAuthentication ResponseSecurity Mode Command Security Mode CommandRAB Assignment SetupCall Proceeding Alerting Connect Connect ACKDisconnectReleaseRelease CompletePaging ResponseAuthentication RequestAuthentication ResponseSecurity Mode Command Security Mode CommandR

29、AB Assignment SetupCall Confirmed Alerting Connect Connect ACKDisconnectReleaseRelease CompletePagingNAS層信令（CS）Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 44UESGSNRRC and NAS signaling Connection Setup UESGSNPagingRRC and NAS signaling Connection Setup Service RequestAuthe

30、ntication RequestAuthentication ResponseSecurity Mode Command Security Mode CommandRAB Assignment Activate PDP Context RequestActivate PDP Context AcceptDeactivate PDP Context RequestDeactivate PDP Context AcceptPaging ResponseAuthentication RequestAuthentication ResponseSecurity Mode Command Securi

31、ty Mode CommandRAB Assignment Request PDP Context ActivationActivate PDP Context RequestActivate PDP Context AcceptDeactivate PDP Context RequestDeactivate PDP Context AcceptNAS層信令（PS）UE 做被叫做被叫UE 做主叫做主叫Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 45NodeBUECNRNCRAB Ass ReqAA

32、L2 Setup ReqAAL2 Setup RepRB SetupRB Setup CompleteRAB Ass RepRRCRRCNBAPNBAPQ.AAL2Q.AAL2FPFPNBAPRANAPQ.AAL2Q.AAL2NBAPNBAPQ.AAL2Q.AAL2FPFPRRCNBAPRRCRANAPRANAPQ.AAL2Q.AAL2RANAPRL Recfg PrepRL Recfg ReadyAAL2 Setup ReqAAL2 Setup RepDL SyncUL SyncRL Recfg CommitRAB承載通道建立流程Copyright 2006 Huawei Technolog

33、ies Co., Ltd. All rights reserved. Page 46UE to UE (1)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 47UE to UE (2)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 48UE to UE (3)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 49UE

34、to UE (4)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 50UE to UE (5)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 51UE to UE (6)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 52UE to UE (7)Copyright 2006 Huawei Technologies C

35、o., Ltd. All rights reserved. Page 53UE發(fā)起的PDP激活 (1)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 54UE發(fā)起的PDP激活 (2)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 55網(wǎng)絡(luò)側(cè)發(fā)起的PDP激活 (1)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 56網(wǎng)

36、絡(luò)側(cè)發(fā)起的PDP激活 (2)Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 57目 錄l TD-SCDMA無線網(wǎng)絡(luò)接口協(xié)議棧結(jié)構(gòu)l TD-SCDMA無線網(wǎng)絡(luò)基本信令流程2.1 網(wǎng)絡(luò)啟動(dòng)流程2.2 UE登記流程2.3 尋呼流程2.4 呼叫流程2.5 切換流程切換流程Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 58硬切換：Inter-cell/Intra-NodeBRNCUENodeBCommunicatin

37、g 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 Huawei Technologies Co., Ltd. All rights reserved. Page 59硬切換：Inter-cell/Intra-NodeBRNCUENodeB P

38、hysical 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)FPACH (from new cell)Voice Data (to new cell, after active time)Copyright 2006 Huawei Technologies

39、 Co., Ltd. All rights reserved. Page 60硬切換：Inter-NB /Intra-RNCRNCUECommunicating 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 SNB)SNBTNBCopyright 2006 Huawei Technolog

40、ies Co., Ltd. All rights reserved. Page 61SNBTNB硬切換：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 62接力切換：Inter-cell/Intra-NodeBRNCUENodeBCommunicating Measurement