Patent ID: 9432885
Filing Date: 2016-08-30
CPC Classification: H04W

Claim Text:
1. A method of performing a handover of a PS (packet switched) service in a user equipment of a wireless communication system, the method comprising: receiving a handover policy information from a network node; and determining whether to perform the handover of the PS service based on the handover policy information without suspending the PS service, wherein the handover policy information includes an information indicating an event for performing the handover of the PS service and a target access technology of the handover of the PS service, wherein the target access technology is set to a value indicating a non-3 GPP access technology, wherein the event is set to a value indicating a CS (circuit switched) call request, and wherein the determining whether to perform the handover of the PS service is performed before a CSFB (circuit switched fall back) is performed after occurrence of a request for a voice call.