User's Manual

CPE User Manual
第 30 页
analyze the signaling in the context of the issue point to find out the cause of the exception, if the
info log is not sufficient to find out the cause of the exception occurs, will need to set log to debug
level.
RRC 信令主要有以下过程：
The RRC signaling mainly has the following procedures:
（1）Attach 流程
The Attach process
EMM_ATTACH_REQUEST
EMM_ATTACH_ACCEPT
EMM_ATTACH_COMPLETE
EMM_ATTACH_REJECT
（2）业务请求流程
Business request process
EMM_SERVICE_REQUEST
EMM_SERVICE_REJECT
5.3.2 RRC 信令分析
RRC signaling
在 info 日志中可以看到 CPE 的 RRC 信令，可以根据关键词“LM> message c1 : ”
对 RRC 信令进行检索，fig 5-3 为一份 info 日志检索出来的部分 RRC 信令：
In the info log can see RRC signaling of CPE, you can according to the keywords "LM >
message c1:" to retrieve the RRC signaling, figure 5-3 is the part RRC signaling retrieved from
info log
Fig 5-3 RRC signaling
当在 RRC 信令中看到异常（比如出现 fail 字样、reject 字样等），则需要查看该信令打
印时间点附近的 info 日志，判断发生异常的原因，假如 info 日志不足以确定异常发生的原
因，需要将 log 级别开到 debug 级别。
When see anomalies in RRC signaling (such as fail, reject, etc.), you will need to analyze the
signaling in the context of the problem point to find out the cause of the exception, if the info log
is not sufficient to find out the cause of the exception occurs, you will need to set log to debug
level.