发明公开
EP1192735A1 METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION ENERGY IN A COMMUNICATION SYSTEM EMPLOYING ORTHOGONAL TRANSMIT DIVERSITY
有权
方法和设备的发送功率控制在传输系统中采用正交STATION多样性
- 专利标题： METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION ENERGY IN A COMMUNICATION SYSTEM EMPLOYING ORTHOGONAL TRANSMIT DIVERSITY
- 专利标题（中）： 方法和设备的发送功率控制在传输系统中采用正交STATION多样性
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申请号： EP00944991.9申请日： 2000-06-28
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公开(公告)号： EP1192735A1公开(公告)日： 2002-04-03
- 发明人: LUNDBY, Stein, A. , RAZOUMOV, Leonid
- 申请人： QUALCOMM Incorporated
- 申请人地址： 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 专利权人： QUALCOMM Incorporated
- 当前专利权人： QUALCOMM Incorporated
- 当前专利权人地址： 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 代理机构： Whitten, George Alan
- 优先权： US340759 19990628
- 国际公布： WO0101604 20010104
- 主分类号： H04B7/005
- IPC分类号： H04B7/005
摘要：
The present invention is a novel and improved method and apparatus for control transmission energy. The present invention describes a closed loop power control system that operates in conjunction with a transmitter (64, 66) using orthogonal transmit diversity. In a first embodiment of the present invention, the receiver evaluates the signal to noise ratio (SNR) of the two components of the signal. A weighted sum of these two components emphasizing the weaker of the two signals is generated and used in the generation of the power control commands. In a second embodiment of the present invention, the SNR of the two component signals are calculated and two separate power control commands are generated based on a corresponding one of the calculated SNR values.
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