Patent ID: 8861572

Claim:
A method of delay spread compensation for improving throughput, suitable for use in a communication device having a plurality of receiver antennas, comprising: receiving a plurality of signals, each via a respective antenna, wherein each signal comprises a signal component corresponding to a transmitted signal, and wherein each received signal experiences a respective channel impulse response having a corresponding delay spread; determining estimates of each of the channel impulse responses; calculating post-coding characteristics based on the estimates of the channel impulse responses; and post-coding the plurality of received signals using the post-coding characteristics to produce at least a first delay spread compensated signal; wherein the post-coding characteristics comprise a post-coding matrix M; and post-coding the plurality of received signals using the post-coding characteristics comprises multiplying a vector Y n f complex IQ samples of the plurality of received signal for a time index n with the post coding matrix M to generate a vector Y n of post-coded IQ samples; and wherein the method further comprises: determining whether at least one of the delay spreads corresponding to respective channel impulse responses is larger than a delay spread threshold; and only if it is determined that at least one of the delay spreads is larger than the delay spread threshold, performing the steps of: calculating post-coding characteristics based on the estimates of the channel impulse responses; and post-coding the plurality of received signals using the post-coding characteristics to produce at least a first delay spread compensated signal.