Patent ID: 8948102
Filing Date: 2015-02-03
Classification: H04L,H04W

Abstract:
1. A method for channel estimation at a receiver in a wireless local area network, the method comprising: receiving a Very High Throughput (VHT) signal field from a transmitter in a first bandwidth, the VHT signal field comprising a bandwidth field, a training offset field, and a position field, the bandwidth field indicating a second bandwidth, the position field indicating positions of a plurality of receivers; receiving at least one VHT-long training field (VHT-LTF) from the transmitter in the second bandwidth based on a position of the receiver; and estimating a multiple input multiple output (MIMO) channel based on the at least one VHT-LTF, wherein the training offset field is set to a first value when the least one VHT-LTF is destined to only one receiver, and the training offset field is set to a second value when the least one VHT-LTF is destined to the plurality of receivers.