Method and devices for multiple station sounding in a wireless local area network

摘要

Embodiments of a method and apparatus for obtaining sounding measurements between an access point and a wireless station within a wireless local area network are described. Some embodiments relate to Wi-Fi networks and networks operating in accordance with one of the IEEE 802.11 standards. Some embodiments may allow an access point to request that multiple stations compute sounding measurements with minimal time delay between measurements. Other embodiments may be described and claimed.

主权项

1. A wireless station (STA) comprising:
a transceiver circuit to:
receive a null data packet (NDP) message from a wireless access point (AP); andreceive a Very High Throughput (VHT) NDP Announcement message, the VHT NDP Announcement message including a listing of a plurality of stations (STAs); and a processor circuit to:
determine that an identifier of the wireless STA is listed first in the listing of the plurality of STAs included in the VHT NDP Announcement message; andresponsive to determining that the identifier is first in the listing of the plurality of STAs:
calculate a VHT Compressed Beamforming feedback message based upon the NDP message; andcause the transceiver circuit to transmit the VHT Compressed Beamforming feedback message immediately after a short interframe space (SIFS) that occurs after receiving the NDP message.