rrc建立请求有多重原因。
建立原因如下:
Originating Conversational Call,
Originating Streaming Call,
Originating Interactive Call,
Originating Background Call,
Originating Subscribed traffic Call,
Terminating Conversational Call,
Terminating Streaming Call,
Terminating Interactive Call,
Terminating Background Call,
Emergency Call,
Inter-RAT cell re-selection,
Inter-RAT cell change order,
Registration, Detach,
Originating High Priority Signalling,
Originating Low Priority Signalling,
Call re-establishment,
Terminating High Priority Signalling,
Terminating Low Priority Signalling,
Terminating - cause unknown,
MBMS reception,
MBMS ptp RB request,
主叫交互类一般是指RRC建立原因为Originating Interactive Call,后续发起RAB建立。通常RAB指派会携带4种业务类型。
conversation,steram,interactive,background.
排查方法无固定方法,根据具体失败原因排查,一般都是空口问题或者小区拥塞。
如果2,3小区都是正常的,需要查看小区1与其他小区的参数是否相同,业务量是否基本相等。
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