Patent ID: 8873511
Filing Date: 2014-10-28
Classification: H04W

Abstract:
1. A method for wireless communications, comprising: receiving a request at a target gateway operating in a target access network for transferring wireless service of a wireless device from a source access network to the target access network; sending, from the target gateway, a handover initiate message comprising a downlink key to a source gateway operating in the source access network; receiving, at the target gateway, an acknowledgement message comprising protocol data network identification (PDN-ID) associated with an established user session; receiving, at the target gateway, subsequent to the receiving the acknowledgement message, a forwarding packet for the wireless device, the forwarding packet using the downlink key and the session context information, wherein the downlink key segregates downlink packet streams from uplink packet streams and the session context information identifies the PDN-ID associated with the forwarding packet; and forwarding the downlink packet to the target access network.