发明名称 |
Wireless communication system, wireless communication apparatus, wireless communication method, and computer program therefor |
摘要 |
Communication operation is performed with enhanced transmission efficiency by obtaining enhanced communication capacity through optimal allocation of transmission powers to individual MIMO channels obtainable by spatial multiplexing. A transmitter has a plurality of transmission antennas and a receiver has a plurality of reception antennas and perform spatial multiplex communication through transmission and reception with individual antenna weights being set. The transmitter varies the power allocation in units of a communication channel in correspondence to communication quality of the channel. The receiver uses a power allocation value of each communication channel that is estimated in accordance with a reception power of a pilot carrier included in user data after spatially separated. Thereby, the receiver returns the magnitude of the amplitude of a received signal in the signal spacing to an original magnitude, and performs an accurate demapping process.
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申请公布号 |
US8000421(B2) |
申请公布日期 |
2011.08.16 |
申请号 |
US20050119465 |
申请日期 |
2005.05.02 |
申请人 |
SONY CORPORATION |
发明人 |
TAKANO HIROAKI;KURODA SHINICHI |
分类号 |
H04B1/10;H04J99/00;H04B7/02;H04B7/04;H04B7/06;H04B7/08;H04B7/26;H04J11/00;H04L1/00;H04L1/06 |
主分类号 |
H04B1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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