Patent ID: 8942214
Filing Date: 2015-01-27
Classification: H04B,H04L,H04W

Abstract:
1. A method for channel sounding in a wireless local area network, the method performed by a transceiver and comprising: receiving a null data packet announcement (NDPA) frame from a transmitter to initiate the channel sounding; receiving a null data packet (NDP) from the transmitter, the NDP following the NDPA frame; configuring a first report field including beamforming information and a second report field including signal to noise ratio (SNR) information; determining whether feedback data including the first report field and the second report field is transmitted in a single feedback frame or a plurality of feedback frames; and if the feedback data is determined to be transmitted in the plurality of feedback frames, splitting the feedback data into a plurality of segments, and transmitting the plurality of segments in a single aggregated medium access control protocol data unit (A-MPDU) including a plurality of MPDUs.