发明授权
- 专利标题： Radio communication apparatus and radio communication method
- 专利标题（中）： 无线电通信装置和无线电通信方法
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申请号： US12432174申请日： 2009-04-29
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公开(公告)号： US08095169B2公开(公告)日： 2012-01-10
- 发明人: Yusuke Ohwatari , Anass Benjebbour , Tomoyuki Ooya , Junichiro Hagiwara
- 申请人： Yusuke Ohwatari , Anass Benjebbour , Tomoyuki Ooya , Junichiro Hagiwara
- 申请人地址： JP Tokyo
- 专利权人： NTT DoCoMo, Inc.
- 当前专利权人： NTT DoCoMo, Inc.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2008-125340 20080512
- 主分类号： H04B1/00
- IPC分类号： H04B1/00
摘要：
A disclosed radio communication apparatus includes a preceding unit configured to precode multiple streams, a splitting unit configured to split the precoded streams into two or more stream sets each including one or more streams, a sub power optimization unit configured to execute an iterative transmit power optimization algorithm on each of the split stream sets to determine respective transmit power levels for the individual stream sets, a power optimization unit configured to execute the iterative transmit power optimization algorithm by using the determined transmit power levels as initial values for the iterative transmit power optimization algorithm to determine respective transmit power levels for the individual streams, and a transmission unit configured to transmit radio signals from individual transmit antennas at the determined transmit power levels.
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