没有啊,TS24.008的4.7.5.1.4已经很清楚了。因为周期性RAU也是RAU的一种,所以RAU Reject就一定会有一个Cause Code。24008明确提到了,收到各种不同的cause code的时候,UE应该怎么做。如果做手机研发的话,是需要遵从的。
例如:假设UE周期性RAU失败,收到的CC是9(这个CC也比较常见)。那规范提到:
#9 (MS identity cannot be derived by the network); The MS shall set the GPRS update status to GU2 NOT UPDATED (and shall store it according to subclause 4.1.3.2), enter the state GMM-DEREGISTERED, and shall delete any P-TMSI, P-TMSI signature, RAI and GPRS ciphering key sequence number. Subsequently, the MS may automatically initiate the GPRS attach procedure.
也就是: