Patent ID: 9154434
Filing Date: 2015-10-06
Classification: H04B,H04L,H04W

Abstract:
1. A multi-access orthogonal frequency division multiplexing (OFDM) communication system for transmitting OFDM frames, the system comprising: a scheduler configured to: an OFDM transmitter comprising a plurality of transmit antennas and configured to transmit OFDM frames, wherein each OFDM frame is constructed from packets assigned to the OFDM frame, each packet being placed in a respective rectangular time-frequency burst within the OFDM frame, and wherein time-frequency bursts that are transmitted to a first set of mobile stations that have a higher orthogonality of channel conditions compared to channel conditions for a second set of mobile stations, are grouped for simultaneous transmission using at least two of the plurality of transmit antennas.