Patent ID: 6950388
Filing Date: 2005-09-27
Classification: H04L

Abstract:
1. A communication system employing radio frequency mixing frequencies to transmit and receive data symbols comprising: a transmitter of at least one predetermined signal; and a plurality of remote units responsive to the at least one predetermined signal to adjust the phase of at least some of the received data symbols to compensate for differences in the mixing frequencies and to align the phase of at least some of the transmitted data symbols with at least some of the received data symbols, wherein at least one unit band pass filtering and under sampling bins from transmitter to provide a signal corresponding to a fewer than all of the bins transmitted by the transmitter, and the at least one unit is responsive to the at least one predetermined signal to adjust the phase of at least some of the received data symbols by rotating the phase of the at least some received data symbols by a multiple of a predetermined phase angle.