SUPPORT OF SINGLE RADIO VOICE CALL CONTINUITY IN NEXT GENERATION (5G) NETWORKS

摘要

Apparatus and methods relating to enabling a wireless device to perform SRVCC when connected to a 3GPP specified gNB and a 5G core network that does not support SRVCC are disclosed. In some embodiments, a method of operation of a wireless device comprises providing an indication to the 5G core network that the UE support SRVCC in EPC mode and receiving instruction to connect to an eNB in EUTRAN and EPC that supports SRVCC to a circuit switched network. In this manner, the gNB and the 5G Core network is not required to support SRVCC. Related embodiments in gNB and a control plane entity in the G core network are also provided.