Patent ID: 9179370
Filing Date: 2015-11-03
Classification: H04W

Abstract:
1. A computer-implemented method for wireless communications, comprising: receiving, at a target gateway operating in a target access network, a request 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 key information including an uplink key to a source gateway operating in the source access network; receiving, at the target gateway, a handover acknowledgement message in response to the handover initiate message, wherein the handover acknowledge message includes user session information including session reference identifiers (SR-IDs) associated with multiple Internet Protocol (IP) addresses of the wireless device; receiving, at the target gateway, subsequent to the receiving the handover acknowledgement message, a forwarding packet including uplink communication from the wireless device, the forwarding packet encrypted using the uplink key and one of the SR-IDs; and forwarding the uplink packet to a gateway server.