Power management of a radio data transceiver

摘要

Methods and apparatuses for operating a wireless mobile station configured to communicate with a wireless access point are described. A first awake timer may be started in response to receiving a beacon signal from the wireless access point. The beacon signal may indicate that data is available or pending for the wireless mobile station. A second awake timer may be started in response to data received from the wireless access point. When the second awake timer expires, the wireless mobile station may return to the sleep state. In one embodiment, the first awake timer counts for a first period of time and the second awake timer counts for a second period of time which is shorter than the first period of time. The RF radio may be in a higher power state when the first and/or the second awake timers are counting. In one embodiment, the wireless mobile station and the wireless access points may be synchronized using target beacon transmission times of the beacon signal.

主权项

1. A method for operating a wireless mobile station which is configured to communicate with a wireless access point, the method comprising:
maintaining, for at least a period of time in the wireless mobile station, a sleep state in which a radio frequency (RF) radio, in the wireless mobile station, is in a low power state; starting a first awake timer in response to receiving a beacon signal, from a wireless access point, that data is available for the wireless mobile station; receiving the data at the wireless mobile station from the wireless access point; and starting a second awake timer in response to the receiving of the data, wherein when the second awake timer expires the wireless mobile station returns to the sleep state.