Patent ID: 9049629
Filing Date: 2015-06-02
Classification: H04W

Abstract:
1. A method of wireless communication, comprising: establishing communication by a mobile device with a first system utilizing a first radio access technology; identifying by the mobile device a handover of the mobile device from the first system utilizing the first radio access technology to a second system utilizing a second radio access technology disparate from the first radio access technology; preparing resources of the second system for the handover of the mobile device to the second system by tunneling handover preparation signaling to the second system via the first system, wherein the tunneling comprises communicating the handover preparation signaling through a Mobile Management Entity (MME) of the first system using a Layer 2 (L2) tunnel, and wherein the handover preparation signaling comprises signaling associated with the second radio access technology and comprising at least a portion of an access authentication procedure within the second system; and encapsulating the handover preparation signaling by the mobile device into a number of messages directed to the second system, wherein the encapsulating comprises forming one or more signaling messages associated with the first radio access technology that include information directed to the MME.