A.8 UE Tracing

25.4673GPPRelease 17Stage 2TSUTRAN architecture for 3G Home Node B (HNB)

This feature allows tracing of various events related to the UE and its activities. The HNB-GW stores the Trace related RANAP parameters exchanged in the RANAP signalling messages. In order to continue UE tracing in the target HNB during and after SRNS Relocation, the HNB-GW sends the stored RANAP CN INVOKE TRACE encapsulated in the RUA DIRECT TRNSFER message towards the target HNB after step 5 (see subclause 5.11.2).