Patent ID: 7126945
Filing Date: 2006-10-24
Classification: H04L,H04W,Y02D

Abstract:
1. A wireless data communication system having extended power capability comprising: (a) a first station linked to a second station which serves as an access point (AP) to support packet communication, voice or data; (b) monitoring apparatus at the access point (AP) which sorts packets according to a Continuously Aware Mode (CAM) or Power Saving Model (PSM) mode; and (c) transmitting apparatus which transmits immediately CAM packets to the first station while PSM packets are buffered by the access point (AP) and held until requested by the first station when in a Power Saving Poll (PSP) mode; and (d) measuring apparatus at the first station which receives the CAM packets and measures CAM packet arrival time for determining a safe period for turning off the receiver between CAM packets based upon an expected arrival time of the CAM packets.