Patent ID: 9119113
Filing Date: 2015-08-25
Classification: H04W

Abstract:
1. A handover method for a user equipment (UE) attaching to a local internet protocol (IP) network, wherein the UE handovers from a source home base station to a target home base station connected to the local IP network, the handover method comprising: a deciding step where the source home base station decides that a direct forwarding path between the target home base station and the source home base station is required; a requesting step where the source home base station requests the target home base station to create the direct forwarding path; a creating step where the target home base station creates the direct forwarding path according to the request from the source home base station; a downlink forwarding step where the source home base station forwards downlink packets destined for the UE to the target home base station via the direct forwarding path; an uplink forwarding step where the target home base station forwards uplink packets from the UE to the source home base station via the direct forwarding path until a direct connection between the target home base station and a local gateway is established; and a transferring step where the source home base station further forwards the uplink packets forwarded from the target home base station to the local gateway via an existing direct connection between the source home base station and the local gateway.