Systems and methods for WLAN power management

摘要

Systems and methods are provided for coordinating power management states in a wireless communications device. An access point may buffer data for a station and may then initiate transfer of the buffered data to the station when the station is considered to be in active mode. The access point may transmit each of the one stored data frames with a more data indication when at least one additional frame is buffered and with a no more data indication when no additional frames are buffered. Receipt of the terminal frame including the no more data indication allows the station to return to power save mode without waiting for any timeout period and without risking missing a transmission from the access point.

主权项

1. A method for managing power states in a wireless local area network (WLAN) that includes a first node configured to operate as an access point and a second node configured to operate as a station, comprising:
storing a plurality of data frames from any source in a buffer at the first node for subsequent transmission to the second node; determining by the first node that the second node is in active mode; and transmitting the plurality of data frames without being polled by the first node between each frame, wherein the plurality of data frames includes a terminal frame having a no more data indication when no additional frames for the second node are stored in the buffer.