Patent ID: 7613162
Filing Date: 2009-11-03
Classification: H04W

Abstract:
1. A system comprising: a mobile device equipped to function in dual transfer mode wherein a packet switched connection and circuit switched connection are used together, a signaling unit configured to signal initiation of release of the circuit switched connection between the mobile device and a network, a conversion element in the network, responsive to the initiation of release, and configured to convert a timeslot used for circuit switched connection traffic into a timeslot used for packet data traffic for a mobile device, and an alert element, responsive to the initiation of release, and configured to provide an alert signal to the mobile device, while the mobile device is in the dual transfer mode, to inform to the mobile device about the converting that will occur after release of the circuited switched connection, wherein the alert signal is included in a release indication, or in a channel release, instead of in a packet timeslot reconfigure message; wherein the conversion element is configured to keep in packet transfer mode timeslots already used for packet data traffic, wherein the conversion element is further configured to add more timeslots that are to be used for packet data traffic, and wherein the conversion element is further configured to deallocate the timeslots that were used for circuit switched traffic.