Patent ID: 8320326
Filing Date: 2012-11-27
Classification: H04W

Abstract:
1. A method for a handoff of a hybrid mobile station from a network comprising a Mobile Switching Center (MSC) and implementing a non-high rate packet data (non-HRPD) communication technology to a network implementing a high rate packet data (HRPD) communication technology, the method comprising: conveying forward link bearer traffic to, and receiving reverse link bearer traffic from, the mobile station via radio frequency (RF) resources associated with the non-HRPD network; receiving, by the non-HRPD network, a handoff trigger; in response to receiving the handoff trigger, conveying a message to the MSC requesting a handoff of the mobile station; in response to receiving the request, obtaining, by the MSC, an allocation of RF resources by the HRPD network; informing the mobile station, by the non-HRPD network, of the RF resources allocated by the HRPD network; establishing, by the HRPD network, a traffic channel with the mobile station based on the RF resources allocated by the HRPD network; and subsequent to the establishment by the HRPD network of a traffic channel with the mobile station, releasing, by the non-HRPD network, the RF resources of the non-HRPD network, wherein releasing comprises, when conveying the message to the MSC requesting a handoff of the mobile station, starting a timer by the non-HRPD network and, upon expiration of the timer, releasing the RF resources of the non-HRPD network by the non-HRPD network.