Patent ID: 8165594
Filing Date: 2012-04-24
Classification: H04W

Abstract:
1. A wireless transmit/receive unit (WTRU) comprising: a transmitter/receiver; an antenna connected to the transmitter/receiver; a voice state transition detector in communication with the transmitter/receiver, the voice state transition detector configured to detect on a condition that the WTRU transitions between a voice active state and a voice silent state and to report the current voice state of the WTRU to a Node B with which the WTRU communicates; a radio resource assignment receiver in communication with the transmitter/receiver, the radio resource assignment receiver configured to receive radio resource assignment information; a timer in communication with the voice state transition detector and the radio resource assignment receiver, the timer configured to count a predetermined period of time on a condition the WTRU changes voice states; a timer exception handler in communication with the timer and the transmitter/receiver, the timer exception handler configured to perform an action on a condition the timer expires; and an unexpected message handler in communication with the transmitter/receiver, the unexpected message handler configured to perform an action on a condition that the WTRU receives an unexpected message on a condition the timer has been started.