发明名称 |
Method and apparatus for generating feedback information for transmit power control in a multiple-input multiple-output wireless communication system |
摘要 |
The present invention is related to a method and apparatus for generating feedback information for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver comprise multiple antennae for transmission and reception. The transmitter comprises a power allocation unit for controlling transmit power based on a feedback received from the receiver. The receiver comprises a channel estimator and a singular value decomposition (SVD) unit. The channel estimator generates a channel matrix from a signal received from the transmitter and the SVD unit decomposes the channel matrix into D, U and V matrices. The receiver sends a feedback generated based on output from the SVD unit to the transmitter. The feedback may be one of an eigenvalue, a transmit power level or a power control bit or command. A hybrid scheme for selecting one of them based on channel condition may be implemented.
|
申请公布号 |
US7630732(B2) |
申请公布日期 |
2009.12.08 |
申请号 |
US20050152435 |
申请日期 |
2005.06.14 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION |
发明人 |
PAN JUNG-LIN;OLESEN ROBERT LIND;TSAI YINGMING |
分类号 |
H04B7/00 |
主分类号 |
H04B7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|