Patent ID: 8582519
Filing Date: 2013-11-12
Classification: H04B,H04L

Abstract:
1. For use in a subscriber station capable of communicating with a base station of an orthogonal frequency division multiplexing (OFDM) network, a method of controlling downlink transmissions to the subscriber station, the method comprising: receiving a first pilot signal from a first antenna of the base station; receiving a second pilot signal from a second antenna of the base station; estimating the channel between the base station and subscriber station based on the received first and second pilot signals; determining a set of OFDM symbol processing parameters based on the estimated channel, wherein the OFDM symbol processing parameters are usable by the base station to control the relative gains and the relative delays of OFDM symbols transmitted from the first and second antennas; and transmitting the OFDM symbol processing parameter set to the base station, wherein the relative delays of the OFDM symbols transmitted from the first and second antennas are cyclic delays.