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善于提问，勤于回答，你也是专家
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FDD-LTE ----GSM重定向失败
终端PS业务态下重定向2G失败
| 00:34:32.474 | LTEInterRATRedirectionToGSMReq | bandIndicator:dcs1800 |
| 00:34:32.993 | LTECellReselectionL2G | |
| 00:34:35.621 | GSMLocationUpdateSuc | |
| 00:34:36.133 | GSMRAUpdateReq | |
| 00:34:36.906 | GSMRAUpdateFail | |
| 00:34:36.916 | GSMAttachAttempt | |
| 00:34:51.919 | GSMAttachFail | |
| 00:34:51.919 | GSMAttachAttempt | |
| 00:34:53.545 | GSMAttachSuc | |
| 00:34:53.876 | GSMPDPActivationReq | |
| 00:34:54.066 | GSMPDPActivationSuc | |
| 00:36:28.019 | GSMCellReselectionG2L | |
| 00:36:28.054 | LTETAUpdateAttempt | |
| 00:36:28.056 | LTERandomAccessAttempt | RACH_CAUSE:Connection Request;RACH Contention:CONTENTION_BASED |
| 00:36:28.056 | LTEInterRATRedirectionToGSMFail | Timeout(s):115 |
以下为参数设置
| SET GCELLPRIEUTRANSYS: IDTYPE=BYNAME, CELLNAME="ZZDHM0803_0", GERANPRI=2, UTRANPRI=4, EUTRANPRI=6, THREUTRANHIGH=6, EUTRANQRXLEVMIN=6; | SET GCELLHOBASIC: IDTYPE=BYNAME, CELLNAME="ZZDHM0803_0", LTECELLRESELEN=YES; | SET GCELLSOFT: IDTYPE=BYNAME, CELLNAME="ZZDHM0803_0", SUPPORTCSFB=SUPPORT; |
目前核查出来的问题点：ue联合注册TAC区为 tac:0x3701 (14081) LAC区为 lac:0xb701 (46849)---该LAC为3GLAC 2G实际对应LAC为14240，TrackingAreaUpdateAccept信令内部包含2GLAC
问题1.4-2PS业务态重定向流程具体是什么？
问题2.以上描述的4-2重定向失败是否与核查到的问题点有关系？
问题3.目前2/4G网络是否支持PS态下的重定向功能 ？
请大神予以指点！！！
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