Reference tbtt estimation algorithm for smart power saving on wlan client

摘要: A WLAN client receives a plurality of beacons that include timestamp values indicate when the were sent by an access point (AP). The calculates beacon drift value for each received in response to and known physical layer characteristics associated with client. selects one calculated represents minimum drift, uses this selected (i.e., golden reference target transmission time (RTBTT) estimate) control wakeup timing RTBTT estimate is updated if subsequently exhibits shorter value. If wait period exceeds predetermined threshold beacons, recalculated account increased drift.