Comparison between the periodic and event-triggered intra-frequency handover measurement reporting in WCDMA

In this paper the WCDMA intra-frequency measurement reporting and handover procedure is presented, and the performance of the two main measurement reporting options, periodic and event-triggered, are compared. Furthermore, the impact of some of the parameters defined for the event-triggered mode is also studied. The comparisons are done in terms of both system quality, uplink noise rise and total base station output power, and the signaling load, i.e. the average measurement reporting and active set update rate. The system simulation results show, that the event-triggered measurement reporting scheme results in lower signaling load with the same level of system quality. Furthermore, the right choice of parameters for the event-triggered mode can improve the situation even further