2g协议信令文档格式.docx
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2g协议信令文档格式.docx
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2g网络路测信令宝典
路测信令分析
Version1.0
目录
1信令id解释3
1.1dt信令中id解释4
1.2几个主要id的字段解释4
2正常信令流程7
2.1呼叫建立及主叫释放信令流程7
2.2被叫信令流程16
2.3开机位置更新信令流程18
2.4跨越lac区位置更新信令流程19
2.5切换信令流程21
2.5.1同步切换信令流程21
2.5.2非同步切换信令流程22
3异常信令流程24
3.1由设备原因引起呼叫建立失败信令流程24
3.2被叫做位置更新造成主叫呼叫建立失败信令流程24
3.3由于拥塞造成的呼叫建立失败信令流程26
3.4由于被叫鉴权被拒绝造成主叫呼叫建立失败信令流程26
3.5无线链路超时造成掉话信令流程28
3.6切换失败信令流程31
1信令id解释
1.1dt信令中id解释
1.2几个主要id的解释
1aqdl(downlinkaudioquality)2audioqualitymean:
3.3mos值第二项2aqi(audioqualityinformation)3-1syncstatus:
synchronized第三项1同步0不同步
4state:
osRascause:
testsystemfailure,参考n/a
篇三:
非常详细的lte信令流程
lte信令流程
第一章协议层与概念..........................................................................................................5
1.1
1.2控制面与用户面...........................................................................................................5接口与协议...................................................................................................................5
1.2.1nas协议(非接入层协议).....................................................................................7
1.2.2RRc层(无线资源控制层)......................................................................................7
1.2.3pdcp层(分组数据汇聚协议层).............................................................................8
1.2.4Rlc层(无线链路控制层)......................................................................................8
1.2.5mac层(媒体接入层)...........................................................................................9
1.2.6phy层(物理层).................................................................................................10
1.3
1.4
1.5空闲态和连接态.........................................................................................................12网络标识.....................................................................................................................13承载概念.....................................................................................................................14
第二章主要信令流程........................................................................................................16
2.1开机附着流程.................................................................................................................16
2.2随机接入流程..................................................................................................................19
2.3ue发起的servicerequest流程.................................................................................23
2.4寻呼流程..........................................................................................................................26
2.5切换流程..........................................................................................................................27
2.5.1切换的含义及目的....................................................................................................27
2.5.2切换发生的过程.......................................................................................................28
2.5.3站内切换..................................................................................................................28
2.5.4x2切换流程.............................................................................................................30
2.5.5s1切换流程.............................................................................................................32
2.5.6异系统切换简介.......................................................................................................34
2.6csFb流程.......................................................................................................................35
2.6.1csFb主叫流程.........................................................................................................36
2.6.2csFb被叫流程.........................................................................................................37
2.6.3紧急呼叫流程...........................................................................................................39
2.7tau流程.........................................................................................................................40
2.7.1空闲态不设置“actiVe”的tau流程......................................................................41
2.7.2空闲态设置“actiVe”的tau流程.........................................................................43
2.7.3连接态tau流程......................................................................................................45
2.8专用承载流程..................................................................................................................46
2.8.1专用承载建立流程....................................................................................................46
2.8.2专用承载修改流程....................................................................................................48
2.8.3专用承载释放流程....................................................................................................50
2.9去附着流程......................................................................................................................52
2.9.1关机去附着流程.......................................................................................................52
2.9.1非关机去附着流程....................................................................................................53
2.10小区搜索、选择和重选...............................................................................................55
2.10.1小区搜索流程.........................................................................................................55
2.10.1小区选择流程.........................................................................................................56
2.10.3小区重选流程.........................................................................................................57
第三章异常信令流程........................................................................................................60
3.1附着异常流程.................................................................................................................61
3.1.1RRc连接失败...........................................................................................................61
3.1.2核心网拒绝..............................................................................................................62
3.1.3enb未等到initialcontextsetuprequest消息........................................................63
3.1.4RRc重配消息丢失或enb内部配置ue的安全参数失败............................................64
3.2serviceRequest异常流程............................................................................................65
3.2.1核心网拒绝..............................................................................................................65
3.2.2enb建立承载失败..........................
..........................................................................66
3.3承载异常流程.................................................................................................................68
3.3.1核心网拒绝...............................................................................................................68
3.3.2enb本地建立失败(核心网主动发起的建立)...........................................................68
3.3.3enb未等到RRc重配完成消息,回复失败................................................................69
3.3.4uenas层拒绝........................................................................................................70
3.3.5上行直传nas消息丢失............................................................................................71
第四章系统消息解析........................................................................................................72
4.1系统消息.........................................................................................................................73
4.2系统消息解析.................................................................................................................74
4.2.1mib(masterinformationblock)解析.................................................................74
4.2.2sib1(systeminformationblocktype1)解析.....................................................75
4.2.3systeminformation消息.........................................................................................77
第五章信令案例解析........................................................................................................83
5.1实测案例流程..................................................................................................................84
5.2流程中各信令消息解析.................................................................................................84
5.2.1RRc_conn_Req:
RRc连接请求...............................................................................85
5.2.2RRc_conn_setup:
RRc连接建立...........................................................................86
5.2.3RRc_conn_setup_cmp:
RRc连接建立完成...........................................................90
5.2.4s1ap_initial_ue_msg:
初始直传消息.....................................................................90
5.2.5s1ap_initial_context_setup_Req:
初始化文本建立请求.....................................91
5.2.6RRc_ue_cap_enquiRy:
ue能力查询.......................................................................94
5.2.7RRc_ue_cap_inFo:
ue能力信息.............................................................................95
5.2.8s1ap_ue_capability_inFo_ind:
ue能力信息指示.................................................99
5.2.9RRc_secuR_mode_cmd:
RRc安全模式命令........................................................103
5.2.10RRc_conn_RecFg:
RRc连接重配置...................................................................104
5.2.11RRc_secuR_mode_cmp:
RRc安全模式完成.......................................................107
5.2.12RRc_con
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