combined attach的相关问题

再出发

combined attach  cause #18   (CS domain not available)
cs/ps mode 2,在关机或拔卡前EPS only attach
combined TA cause #18  (CS domain not available)
cs/ps mode 2,在关机或拔卡前EPS only attach

是否
combined attach  cause #18  cs/ps mode 2
之后的TA就不再combined TA，TS 24.301协议上看附着和跟踪区更新的处理逻辑是分开的？

自言自语，记录先，看懂的也可以回答，多谢

chris

#18        (CS domain not available)
        The UE shall stop timer T3410 if still running, shall reset the tracking area updating attempt counter, shall set the EPS update status to EU1 UPDATED and shall enter state EMM-REGISTERED.NORMAL-SERVICE.
        The UE shall set the update status to U2 NOT UPDATED.
        A UE in CS/PS mode 1 of operation with "IMS voice not available" shall attempt to select GERAN or UTRAN radio access technology rather than E-UTRAN for the selected PLMN or equivalent PLMN. The UE shall disable the E-UTRA capability (see subclause 4.5). If the UE is in the EMM-CONNECTED mode, the UE shall locally release the established NAS signalling connection and enter the EMM-IDLE mode before selecting GERAN or UTRAN radio access technology.
        A UE in CS/PS mode 2 of operation may provide a notification to the user or the upper layers that the CS domain is not available.
        The UE shall not attempt combined attach or combined tracking area update procedure with current PLMN until switching off the UE or the UICC containing the USIM is removed. Other EMM cause values and the case that no EMM cause IE was received are considered as abnormal cases. The combined attach procedure shall be considered as failed for EPS and non-EPS services. The behaviour of the UE in those cases is specified in subclause 5.5.1.3.6.

如上２４３０１写的比较清楚了，CS/PS mode2的终端在关机开机前不在Ｃｏｍｂｉｎｅｄ　ＴＡＵ，但前提时候同一个ＰＬＭＮ，如果换了ＰＬＭＮ还是会的．．
然而实际现网我遇到过多次即使发了这个原因给终端，部分终端过一段时间还是会发ｃｏｍｂｉｎｅｄ　ＴＡＵ，比如去了３Ｇ后再ＴＡＵ回来的．．

甚至在出现如下错误时，部分不符合协议的终端依然反复发ＴＡＵ，所以协议是一回事情，真正实现起来又是一回事情
#40        (No EPS bearer context activated);
        The UE shall delete the list of equivalent PLMNs and deactivate all the EPS bearer contexts locally, if any, and shall enter the state EMM-DEREGISTERED.NORMAL-SERVICE. The UE shall then perform the attach procedure.

wenliu

虽然是自言自语。。不过既然写出来给大家看。。稍微理下你的顺序和测试目的呢。

再出发

wenliu 发表于 2013-9-5 09:25
虽然是自言自语。。不过既然写出来给大家看。。稍微理下你的顺序和测试目的呢。

好的，等我