发明申请
US20050259006A1 Beam forming apparatus and method using interference power estimation in an array antenna system
审中-公开
在阵列天线系统中使用干涉功率估计的光束形成装置和方法
- 专利标题: Beam forming apparatus and method using interference power estimation in an array antenna system
- 专利标题(中): 在阵列天线系统中使用干涉功率估计的光束形成装置和方法
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申请号: US11135631申请日: 2005-05-24
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公开(公告)号: US20050259006A1公开(公告)日: 2005-11-24
- 发明人: Byoung-Yun Kim , Song-Hun Kim , Hyeon-Woo Lee , Kwang-Yung Jeong , Hye-Young Lee , Peter Jung
- 申请人: Byoung-Yun Kim , Song-Hun Kim , Hyeon-Woo Lee , Kwang-Yung Jeong , Hye-Young Lee , Peter Jung
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 优先权: KR2004-36746 20040524
- 主分类号: H04B7/04
- IPC分类号: H04B7/04 ; G01S3/16 ; G01S3/72 ; G01S3/74 ; H01Q3/00 ; H04B1/00 ; H04B7/08
摘要:
An apparatus and method are provided for simply estimating joint channel and Direction-of-Arrival (DOA) to efficiently estimate a channel impulse response associated with a spatially selective transmission channel occurring in a mobile radio channel, and performing efficient beam forming using the simplified joint channel and DOA estimation are provided. A receiver estimates the total interference power using power for each interference signal, estimates a spectral noise density, calculates steering vectors considering predetermined DOAs, and jointly calculates optimal weight vectors for each DOA of each user by applying the interference power and the spectral noise density to the steering vectors. The beam forming reduces implementation complexity of a TDD system such as a TD-SCDMA and increases beam forming efficiency in a mobile environment by efficiently using spatial diversity.
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