Enhanced stomp-and-restart with interference suppression

摘要

Enhanced stomp-and-restart techniques are provided. At a plurality of antennas of a wireless communication device, energy is received 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. A first frame is acquired from the received energy. Channel state information is computed for the first frame and the channel state information associated with the first frame is stored. Interference suppression parameters are computed for the first frame from the channel state information. It is determined whether a stronger second frame is being received by the wireless communication device. The received energy associated with the first frame is nulled-out using the interference suppression parameters when the stronger second frame is determined to be received so that start-of-packet processing and decoding is performed on the stronger second frame.

主权项

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.