Patent Document ID: 20030134605
Application ID: 10329952
Patent Flag: 0

Claim One:
1. A mobile communication apparatus with multiple transmission and reception antennas, the apparatus comprising a base station and a mobile station, wherein the base station includes at least one transmission antenna and restores long-term information and short-term information from a feedback signal received from the mobile station, spatially processes dedicated physical channel (DPCH) signals using basis information generated from the restored long-term information and short-term information, and transmits the results of adding pilot channel (PICH) signals to the spatially processed results to the mobile station, wherein the mobile station includes at least one reception antenna and determines a first characteristic corresponding to the channel downlink characteristic for each of the transmission and reception antennas from the PICH signals transmitted from the base station, determines the long-term information and short-term information reflecting the first characteristic, converts the determined long-term information and short-term information to the feedback signal, and transmits the feedback signal to the base station, and wherein the long-term information includes effective long-term eigenvectors and effective long-term eigenvalues, and the short-term information includes effective short-term eigenvectors and effective short-term eigenvalues.