Patent ID: 8885453
Filing Date: 2014-11-11
Classification: H04L,H04W,Y10S

Abstract:
1. A method comprising: at a plurality of antennas of a wireless communication device, receiving energy in a channel in which one or more frames may be transmitted to the wireless communication device from any one of a plurality of other wireless communication devices; acquiring a first frame from the received energy; computing channel state information for the first frame from the energy received at the plurality of antennas and storing the channel state information associated with the first frame; computing spatial interference suppression parameters for the first frame from the channel state information; determining whether a stronger second frame is being received by the wireless communication device after start-of-packet processing of the first frame and decoding has begun on the first frame; spatially nulling out the energy associated with the first frame using the spatial interference suppression parameters when the stronger second frame is determined to be received after start-of-packet processing of the first frame and decoding has begun on the first frame, in order to permit start-of-packet processing and decoding of the second frame that at least partially overlaps in time with the first frame; and performing start-of-packet processing and decoding of the stronger second frame after the spatially nulling so that the start-of-packet processing and decoding is performed on the basis of the stronger second frame and not the first frame.