Patent ID: 9380558
Filing Date: 2016-06-28
CPC Classification: H04W

Claim Text:
1. A method of managing connections between a mobile wireless device, which includes a single tunable receiver, and a plurality of wireless networks, the method comprising: registering the mobile wireless device with a first wireless network; registering the mobile wireless device with a second wireless network while maintaining registration with the first wireless network; receiving an Internet Protocol Multimedia Subsystem (IMS) connection origination message from the first wireless network; sending a connection rejection message to the first wireless network rejecting the IMS connection before tuning to the second wireless network without de-registering from the first wireless network; tuning the single tunable receiver from the first wireless network to the second wireless network, in response to the connection origination message from the first wireless network; and connecting to the second wireless network, in response to a connection request from the second wireless network.