SR-VCC has been standardized in Release 8 TS 23.216
to provide seamless continuity when UE handovers from EUTRAN to UTRAN/GERAN.
This TR contains the results of feasibility study of the requirements and the alternative solutions to improve the handover performance of SRVCC.
The objective of this study is as follows:
Evaluating the performance of current Rel-8 SRVCC solution;
Enhancing the performance of the SR-VCC Flow Break with regard to the roaming and non-roaming case;
Enhancing SR-VCC handover performance while minimizing the impacts on the network architecture for the directions
from E-UTRAN to UTRAN/GERAN; and
from UTRAN to UTRAN/GERAN.