SCHEDULED PEER POWER SAVE MODE
Embodiments of scheduled peer power save systems, devices, and methods are disclosed. For example, methods of saving power for stations configured to communicate via a direct link are provided. Embodiments of scheduled peer power save systems, devices and methods are disclosed. For example, methods of saving power for stations configured to communicate via a direct link are provided. In one embodiment, among others, a method comprises waking up, at a station and peer station, before a scheduled wakeup interval. The scheduled wakeup interval is defined relative to common timing reference at the station and the peer station. Further, in the absence of a service period between the station and the peer station, the station and the peer station stay awake until at least a predefined time period has elapsed or a predefined number of idle slots have elapsed.
1 . A method comprising:
activating a wakeup schedule at a first station,
the wakeup schedule comprising an interval and a number of backoff slots,
the wakeup schedule scheduling a start of a wake time at each subsequent interval occurring after activating the wakeup schedule,
wherein each wake time has a duration of at least the number of backoff slots being declared idle by a clear channel assessment mechanism,
wherein the clear channel assessment mechanism declares a backoff slot idle based on a sufficient absence of activity or energy on a channel;
entering a sleep state at the first station after an end of one of the wake times and before a start of the subsequent wake time; and
entering a wake state at the first station before the start of each wake time.
2 . The method of claim 1 , wherein the wakeup schedule further comprises specifying a deactivation count.
3 . The method of claim 2 , further comprising deactivating the wakeup schedule at the first station when no data is transmitted or received during the deactivation count subsequent wake times.
4 . A station, comprising:
a transceiver; and
a processor coupled to the transceiver, the processor configured by executable instructions to:
activate a wakeup schedule, the wakeup schedule comprising an interval and a number of backoff slots, the wakeup schedule scheduling a start of a wake time at each subsequent interval occurring after activating the wakeup schedule, wherein each wake time has a duration of at least the number of backoff slots being declared idle by a clear channel assessment mechanism, wherein the clear channel assessment mechanism declares a backoff slot idle based on a sufficient absence of activity or energy on a channel;
enter a sleep state after an end of one of the wake times and before a start of the subsequent wake time; and
enter a wake state before the start of each wake time.
5 . The station of claim 4 , wherein the wakeup schedule further comprises specifying a deactivation count.
6 . The station of claim 5 , wherein the processor is further configured to deactivate the wakeup schedule when no data is transmitted or received during the deactivation count subsequent wake times.