发明授权
US08270516B2 Using covariance matrices for link selection in MIMO communication system
有权
在MIMO通信系统中使用协方差矩阵进行链路选择
- 专利标题: Using covariance matrices for link selection in MIMO communication system
- 专利标题(中): 在MIMO通信系统中使用协方差矩阵进行链路选择
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申请号: US12306132申请日: 2006-10-04
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公开(公告)号: US08270516B2公开(公告)日: 2012-09-18
- 发明人: David Astely , Bo Göransson , Per Skillermark
- 申请人: David Astely , Bo Göransson , Per Skillermark
- 申请人地址: SE Stockholm
- 专利权人: Telefonaktiebolaget LM Ericsson (Publ)
- 当前专利权人: Telefonaktiebolaget LM Ericsson (Publ)
- 当前专利权人地址: SE Stockholm
- 优先权: WOPCT/SE2006/050218 20060626
- 国际申请: PCT/SE2006/050374 WO 20061004
- 国际公布: WO2008/002227 WO 20080103
- 主分类号: H04B7/02
- IPC分类号: H04B7/02
摘要:
A method of selecting at least one communication link in a wireless communication network is proposed, comprising the steps of transmitting from at least one transmitting node in the network a pilot signal from each of at least two transmitter antennas of the transmitting node, receiving the pilot signals from the at least two transmitter antennas in a receiving terminal, estimating, in the terminal, a covariance matrix of the channel, based on the pilot signals received, determining the pathloss for each antenna based on the covariance matrix, selecting one of at least two possible links for the communication between the terminal and the transmitting nodes. The terminal is enabled to measure on each transmitter antenna individually, which provides a better tool for link selection and cell selection.
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