上海大唐移动通信设备有限公司目录1.概述...............................................................................................................................................................11.1本文的目的和内容................................................................................................................................11.2本文的依据............................................................................................................................................11.3缩略语....................................................................................................................................................12.研究动机/顾客受益......................................................................................................................................43.典型处理流程...............................................................................................................................................53.1主叫信令流程........................................................................................................................................53.1.1主叫流程图....................................................................................................................................53.1.2流程简述........................................................................................................................................93.1.3主要消息......................................................................................................................................123.2被叫信令流程......................................................................................................................................133.2.1被叫流程......................................................................................................................................133.2.2流程简述......................................................................................................................................173.2.3主要消息......................................................................................................................................173.3呼叫释放信令流程..............................................................................................................................173.3.1释放RRC连接情况....................................................................................................................173.3.2仅释放Iu连接.............................................................................................................................194.典型异常流程.............................................................................................................................................234.1UU接口异常流程................................................................................................................................234.1.1网络拒绝建立RRC连接............................................................................................................234.1.2RRC连接释放时的异常情况.....................................................................................................254.1.3初始/直接传输异常处理.............................................................................................................274.1.4安全模式控制失败（包括I...
