Patent ID: 9148847
Filing Date: 2015-09-29
Classification: H04W

Abstract:
1. A method comprising: a wireless mobile device initiating a connection to a first wireless network that implements a first radio access technology, wherein the first radio access technology is 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) technology; the wireless mobile device receiving an internet protocol (IP) address from the first wireless network and communicating via the first wireless network using the IP address; the wireless mobile device initiating an inter-radio access technology (I-RAT) handover procedure to connect to a second wireless network in response to a determination by the wireless mobile device that the wireless mobile device has been operating in an idle state for longer than a predetermined amount of time, wherein the second wireless network implements a second radio access technology that is different from the first radio access technology, and wherein the initiating the I-RAT handover includes sending a configuration request message to the second wireless network indicating the attach type corresponds to a handover; and the wireless mobile device communicating with the second wireless network using the IP address.