Low overhead transmit channel estimation

摘要

A transmit channel (g_t1, h, g_r2) through which a first wireless communication transceiver is to transmit to a second wireless communication transceiver can be estimated using information indicative of a relationship between the transmit channel and a receive channel (g_t2, h, g_r1) through which the first wireless communication transceiver receives communications from the second wireless communication transceiver. The relationship information ( 35 ) is combined ( 37 ) with further information ( 31 ) to produce an estimate of the transmit channel.