Section: 4.7.6.3 P-TMSI reallocation completion by the network
Content: Upon receipt of the P-TMSI REALLOCATION COMPLETE message, the network shall stop the timer T3350 and shall consider both the old and the new P-TMSI and the corresponding P-TMSI signatures as valid until the old P-TMSI can be considered as invalid by the network (see subclause 4.7.1.5). In A/Gb mode, the GMM layer shall notify the LLC layer that the P-TMSI has been changed (see 3GPP TS 44.064[ Mobile Station - Serving GPRS Support Node (MS-SGSN); Logical Link Control (LLC) Layer Specification ]  [78a]).