| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve efficient multi-user MIMO transmission even if any interference from a peripheral cell exists in a multi-cell environment. <P>SOLUTION: A relay station IS estimates a time when an interfering signal arrives and a time when the interfering signal does not arrive, and estimates transmission functions between interference-IS. An access point AP matches timing in which the inferring signal is transmitted to a terminal MS with a section t<SB>1</SB>when an interfering wave arrives. The terminal MS estimates transmission functions between access point AP-terminal MS, between interference-terminal MS and between the relay station IS-terminal MS. The relay station IS estimates the interfering signal of the data section by using the reception signal in the data section and the transmission functions between the interference-relay station IS, and divides the interfering signal into K, and transmits it to the terminal MS by using the section t<SB>2</SB>when the interfering wave does not arrive. The terminal MS removes the interfering wave by the reception signal from the access point AP, the interfering signal and the transmission functions between the interference/MS. <P>COPYRIGHT: (C)2009,JPO&INPIT |
