Patent ID: 7680071
Filing Date: 2010-03-16
Classification: H04W,Y02D

Abstract:
1. A method for power management of a wireless transmit/receive unit (WTRU) during a discontinuous reception (DRX) mode comprising a plurality of DRX cycles, the method comprising: entering a sleep state in accordance with a DRX cycle of the plurality of DRX cycles; waking up responsive to a start of a synchronization update block for the WTRU to perform at least one of an automatic frequency correction (AFC) and frame time correction (FTC) during the DRX cycle, the synchronization update block comprising a plurality of frames designated for the WTRU performing the at least one of the AFC and the FTC, receiving a beacon signal in the synchronization update block; extracting midamble signal from the beacon signal; and performing the at least one of the AFC and the FTC using the extracted midamble signal during the plurality of frames designated for the WTRU performing the at least one of the AFC and the FTC during the DRX cycle.