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(普通问题)
ATU未接通事件
求高手分析未接通具体原因。
主叫从占1800小区重选至900小区后起呼时再重选到1800小区,信号快衰。三个小区都是同BSC的。为什么有会位置更新接受的信令。但是前面手机并没发送位置更新的请求啊,是不是因为快衰的原因导致部分信令丢失导致?
提问者: jat 提问时间: 2012-11-15
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问题答案
( 4 )
丢没丢信令你看时间应该知道吧,该站点是LAC边界吗?是不是BSC里设置位置更新时间到了,刚好在重选的过程中作位置更新。
回答者:
wangming4125
回答时间:2012-11-15 21:30
33 34
兄弟提供的信令太少了,从你抓的信令看,貌似T3212设置导致的假关机,先查查周围基站是否设置都一样;
另外,从你抓的图看不到900小区,是不是多频报告设错了?
另外,从你抓的图看不到900小区,是不是多频报告设错了?
回答者:
liunk
回答时间:2012-11-15 21:56
32 29
假关机是是情况呢?
DL RR Paging Request Type 1 11:52:04.078
DL RR System Information Type 4 11:52:04.078
UL MM CM Service Request 11:52:04.078
DL RR System Information Type 13 11:52:04.078
DL RR Immediate Assignment 11:52:04.078
DL RR System Information Type 2ter 11:52:04.078
DL RR System Information Type 3 11:52:04.078
DL RR Paging Request Type 1 11:52:04.585
DL RR System Information Type 4 11:52:04.585
DL RR System Information Type 1 11:52:04.585
DL RR Paging Request Type 1 11:52:04.673
DL RR System Information Type 2 11:52:04.781
DL RR Paging Request Type 1 11:52:04.981
DL RR Paging Request Type 1 11:52:04.981
DL RR System Information Type 3 11:52:05.025
DL RR Immediate Assignment 11:52:05.033
DL RR System Information Type 6 11:52:05.193
UL RR Classmark Change 11:52:05.285
UL RR Measurement Report 11:52:05.513
DL RR System Information Type 5 11:52:05.665
UL RR Measurement Report 11:52:05.985
DL RR System Information Type 5 11:52:06.149
UL RR Measurement Report 11:52:06.453
DL RR Immediate Assignment 11:52:05.033
DL RR System Information Type 6 11:52:05.193
UL RR Classmark Change 11:52:05.285
UL RR Measurement Report 11:52:05.513
DL RR System Information Type 5 11:52:05.665
UL RR Measurement Report 11:52:05.985
DL RR System Information Type 5 11:52:06.149
UL RR Measurement Report 11:52:06.453
UL RR Measurement Report 11:52:06.925
UL RR Measurement Report 11:52:07.397
UL RR Measurement Report 11:52:07.865
UL RR Measurement Report 11:52:08.337
UL RR Measurement Report 11:52:08.809
UL RR Measurement Report 11:52:09.281
UL RR Measurement Report 11:52:09.749
UL RR Measurement Report 11:52:10.221
UL RR Measurement Report 11:52:10.693
UL RR Measurement Report 11:52:11.161
UL RR Measurement Report 11:52:11.633
UL RR Measurement Report 11:52:12.105
UL RR Measurement Report 11:52:12.573
UL RR Measurement Report 11:52:13.045
UL RR Measurement Report 11:52:13.517
DL RR Paging Request Type 1 11:52:04.078
DL RR System Information Type 4 11:52:04.078
UL MM CM Service Request 11:52:04.078
DL RR System Information Type 13 11:52:04.078
DL RR Immediate Assignment 11:52:04.078
DL RR System Information Type 2ter 11:52:04.078
DL RR System Information Type 3 11:52:04.078
DL RR Paging Request Type 1 11:52:04.585
DL RR System Information Type 4 11:52:04.585
DL RR System Information Type 1 11:52:04.585
DL RR Paging Request Type 1 11:52:04.673
DL RR System Information Type 2 11:52:04.781
DL RR Paging Request Type 1 11:52:04.981
DL RR Paging Request Type 1 11:52:04.981
DL RR System Information Type 3 11:52:05.025
DL RR Immediate Assignment 11:52:05.033
DL RR System Information Type 6 11:52:05.193
UL RR Classmark Change 11:52:05.285
UL RR Measurement Report 11:52:05.513
DL RR System Information Type 5 11:52:05.665
UL RR Measurement Report 11:52:05.985
DL RR System Information Type 5 11:52:06.149
UL RR Measurement Report 11:52:06.453
DL RR Immediate Assignment 11:52:05.033
DL RR System Information Type 6 11:52:05.193
UL RR Classmark Change 11:52:05.285
UL RR Measurement Report 11:52:05.513
DL RR System Information Type 5 11:52:05.665
UL RR Measurement Report 11:52:05.985
DL RR System Information Type 5 11:52:06.149
UL RR Measurement Report 11:52:06.453
UL RR Measurement Report 11:52:06.925
UL RR Measurement Report 11:52:07.397
UL RR Measurement Report 11:52:07.865
UL RR Measurement Report 11:52:08.337
UL RR Measurement Report 11:52:08.809
UL RR Measurement Report 11:52:09.281
UL RR Measurement Report 11:52:09.749
UL RR Measurement Report 11:52:10.221
UL RR Measurement Report 11:52:10.693
UL RR Measurement Report 11:52:11.161
UL RR Measurement Report 11:52:11.633
UL RR Measurement Report 11:52:12.105
UL RR Measurement Report 11:52:12.573
UL RR Measurement Report 11:52:13.045
UL RR Measurement Report 11:52:13.517
jat 2012-11-15 22:17
相同位置区不同小区T3212参数设置不一,会在某些条件下,移动台长时间T3212不超时,不发起周期位置更新流程,而导致网络侧将该移动台标识为“隐性关机",正常开机下做被叫回放录音“用户已关机"。
要求相同位置区不同小区该参数设置一样。
但是从你上面的信令看好像是因为上下行不平衡导致的,具体说是上行链路太弱
要求相同位置区不同小区该参数设置一样。
但是从你上面的信令看好像是因为上下行不平衡导致的,具体说是上行链路太弱
liunk 2012-11-15 23:57
能告诉大概从那些信令判断的吗?
jat 2012-11-16 02:02
MS连续发送上行,表明上行信号上不去或未接收到下行信号;
但MS可以连续收到很多下行,表明下行可以到达手机;
两个合一起就可以判断是上行信号太弱。
但MS可以连续收到很多下行,表明下行可以到达手机;
两个合一起就可以判断是上行信号太弱。
liunk 2012-11-16 09:41
在11:52:06.149 之前MS一直都是在发上行和收下行信号,这些都是正常的,在11:52:06.149
之后一直是在发上行,并未收到下行,不知道您所指的“ MS连续发送上行,表明上行信号上不去或未接收到下行信号;
但MS可以连续收到很多下行,表明下行可以到达手机;
两个合一起就可以判断是上行信号太弱。” 这个是怎么看的?请指教!!!
之后一直是在发上行,并未收到下行,不知道您所指的“ MS连续发送上行,表明上行信号上不去或未接收到下行信号;
但MS可以连续收到很多下行,表明下行可以到达手机;
两个合一起就可以判断是上行信号太弱。” 这个是怎么看的?请指教!!!
hj20081 2012-11-16 16:41
不太懂这些,正在积极研究信令,学习中。
回答者:
zhugeyingju
回答时间:2012-11-16 09:40
30 31
1、ATU目前占用1800M小区起呼,会出现高质差;
2、从上面的两个截图看,估计此时终端已经掉话,处于“吊死”状态,相当于关机;
3、如果以上第二点成立的话,那么出现位置更新可能是终端重新进行小区选择,并启动位置更新过程。
2、从上面的两个截图看,估计此时终端已经掉话,处于“吊死”状态,相当于关机;
3、如果以上第二点成立的话,那么出现位置更新可能是终端重新进行小区选择,并启动位置更新过程。
回答者:
xie5552
回答时间:2012-11-16 11:02
38 31
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