| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide higher data rate even for users suffering from interference at cell edges. <P>SOLUTION: First channel state information is received by a first base station from a first wireless device, and first channel gain information of a channel between a second wireless device and the first base station is received (120). The first channel gain information h<SB POS="POST">21</SB>is received from a second base station. A first signal strength parameter b<SB POS="POST">i</SB>indicating a signal strength at the second wireless device caused by the second base station is received from the second base station (130), and a first interference strength parameter a<SB POS="POST">i</SB>indicating an interference strength at the first wireless device caused by the second base station is received from the second base station (140). Furthermore, a common signal to interference noise ratio parameter is maximized to acquire precoding vector p<SB POS="POST">i,opt</SB>for precoding data to be transmitted to the first wireless device (150). <P>COPYRIGHT: (C)2013,JPO&INPIT |
