Patent ID: 8929334
Filing Date: 2015-01-06
Classification: H04W

Abstract:
1. A method of handoff in a wireless communication system comprising: during a period of data inactivity, attaching to a first network and creating a context therewith, the first network being a non-preferred network as compared to a second network; connecting to the second network based on the context created with the first network and while maintaining at least a partial context with the first network; switching to the first network from the second network based on an unavailability of the second network; transmitting a request to establish a connection to a packet data network to the first network using a signaling channel; and establishing a traffic channel on the first network, wherein the request to establish a connection to the packet data network is transmitted before the traffic channel has been established, wherein the request to establish a connection to a packet data network further comprises a configuration option message, and wherein the configuration option message comprises at least an access point name and a length of an access point name.