Patent ID: 7206353
Filing Date: 2007-04-17
Classification: H04B

Abstract:
1. A mobile communication apparatus, comprising: a base station having a first plurality of antennas; a mobile station having a second plurality of antennas, the mobile station measuring downlink characteristics of a channel for each combination of the first plurality of antennas and the second plurality of antennas from a signal received from the base station, determining long-term information in which a correlation property of the channel for each combination has been reflected from the measured downlink characteristics, transforming the long-term information into a feedback signal, and transmitting the feedback signal to the base station; and the base station for receiving the feedback signal, restoring the long-term information from the received feedback signal, performing basis mapping and basis transformation on a dedicated physical channel signal using the restored long-term information, adding the basis-mapped and basis-transformed signal to each of a plurality of pilot channel signals, and transmitting the addition results to the mobile station.