| 摘要 |
PROBLEM TO BE SOLVED: To improve transmission properties when a plurality of streams toward the self apparatus are received. SOLUTION: A receiving device estimates a BF channel matrix based on a received signal received by N receiving antennas for receiving a signal of a plurality of streams transmitted after beam forming (BF) is carried out thereto based on a quantization vector returned from each user, generates a replica signal using the BF channel matrix and a transmission symbol candidate vector transmitted to the self apparatus, calculates an error vector using the received signal and the replica signal, calculates a correlation matrix for removing an interference component between users included in the error vector using the BF channel matrix, selects a transmission symbol candidate whose error vector from which the interference component between users is removed using the correlation matrix becomes the minimum, and estimates a transmission symbol transmitted to the self apparatus. COPYRIGHT: (C)2010,JPO&INPIT
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