5G信令分析指导书目录１概述...............................................................................................12开机入网........................................................................................３2.1小区搜索与选择ﻩ32.２系统消息广播..............................................................................................................................................................42.2.1系统消息获取ﻩ６2.2.2系统消息更新ﻩ７2.2．3ＯＤOSＩ过程.......................................................................................................................................................8２．2.4关键消息解读........................................................................................................................................................92.２．4.1MIBﻩ92.2.4.2SIＢ1ﻩ1１２.2.4.3SIﻩ172.３随机接入ﻩ182.3．1基于竞争的随机接入............................................................................................................................................202.3．2基于非竞争的随机接入ﻩ242.４RRC连接建立ﻩ8２２．4.1ＲＲC建立流程...............................................................................................................................................292.4．２ＲRC拒绝过程...................................................................................................................................................312.4.3RRＣ重发处理ﻩ312.4.4关键消息解读...........................................................................................................................................................332.４.4.1RRCSetupＲeｑueｓtﻩ3３2.4.4.2ＲＲＣＳｅtuｐﻩ3４2.4．4.３RRCSeｔupCｏmpleteﻩ3６2.4.４.4RRCReｊeｃｔ.................................................................................................................................................372.5注册流程ﻩ３７3上下文管理......................................................................................383.1初始上下文建立过程..................................................................................................................................................383．1．1安全模式过程..................................................................................................................................................4０3.１.2UE能力查询过程...................................................................................................................................................423.1.3关键消息解读.....................................................................................................................................................4３3.1.３．１ＮGAPＩNITＩALCONTEＸTSETUPREＱUEST............................................................................433.１.3.2NGAPIＮITＩＡLCONＴＥＸTSETUPRESPＯNＳEﻩ44文档版本01(2019-08-02)版权所有©华为技术有限公司３.１.３.3RRＣSeｃurityＭodｅComｍanｄ...................................................................................................４53.1．3．4RＲＣＳｅｃurｉｔyMoｄeComｐlete...............................................................................................45３.1.３.5RRＣＵＥCａpabｉlityEnquiry.........................................................................................................４53.1.３．6RRCUECａpabｉlityInfoｒ...
