Patent ID: 7536186

Claim:
A mobile communication device comprising: at least two transceivers, each transceiver designed to operate on a separate wireless communications system, for transmitting and receiving wireless information; a controller, communicatively coupled to each transceiver, for managing the operation of the mobile communication device; a first wireless communications system stack, communicatively coupled to the controller, having instructions for communicating according to its respective protocol; a second wireless communications system stack, communicatively coupled to the controller, having instructions for communicating according to its respective protocol; a means for measuring speed or displacement of the wireless device, communicatively coupled to the controller; and a handover manager, communicatively coupled to the controller, the first wireless communications system stack, the second wireless communications system stack, and the means for measuring speed or displacement of the wireless device, the handover manager for determining when to handover from the first wireless communication system to the second wireless communication system in response to determining that a speed or displacement of the device exceeds a first predetermined threshold, wherein a handover manager aborts a registration sequence with the second wireless communication system in response to determining that a speed or displacement of the wireless device does not exceed a second predetermined threshold.