发明名称 |
Wireless communication system and wireless communication method |
摘要 |
In a wireless communication system in which a sending side derives transmit weight vectors based on feedback information and carries out precoding, performance degradation is caused when the channel at the time when the transmit weight vectors are derived and the true channel are different from each other. Along with variations in the channel, the power allocation to a plurality of effective streams formed in MIMO is caused to approach asymptotically to uniform power allocation from the value determined based on the channel state information that the sending side has. |
申请公布号 |
US8184724(B2) |
申请公布日期 |
2012.05.22 |
申请号 |
US200813133398 |
申请日期 |
2008.12.09 |
申请人 |
YAMAMOTO KEISUKE;SHIDA MASAAKI;HITACHI, LTD. |
发明人 |
YAMAMOTO KEISUKE;SHIDA MASAAKI |
分类号 |
H04L27/00;H04B1/40;H04B7/00 |
主分类号 |
H04L27/00 |
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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