| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio relay apparatus capable of canceling a loop interference wave in MIMO communication. SOLUTION: A radio relay apparatus includes: a cancellation unit 110 for obtaining M second baseband signals by canceling M replicated signals replicating loop interference waves in M reception antennas 101 from M first baseband signals, respectively; a weight calculation unit 120 for calculating M×M weights corresponding to M×M transmission channels through which each of the M second baseband signals loop-interferes with each of the M reception antennas 101; and a weight multiplication unit 130 for multiplying the M second baseband signals by the M weights corresponding to the respective M reception antennas 101 and then combining resultant signals together to obtain respective M replicated signals to be supplied to the cancellation unit 110. COPYRIGHT: (C)2011,JPO&INPIT |
