Antenna selection and training using a spatial spreading matrix for use in a wireless MIMO communication system
- 申请公布号：
- US7978784(B2)
- 申请号：
- US20080105750
- 申请日期：
- 2008.04.18
- 申请公布日期：
- 2011.07.12
- 申请人：
- MARVELL INTERNATIONAL LTD.
- 发明人：
- ZHANG HONGYUAN;NABAR ROHIT U.
- 分类号：
- H04L27/00
- 主分类号：
- H04L27/00
- 摘要：
- A wireless communication system and method uses a spatial spreading matrix to distribute the encoded spatial data streams to a number of transmit chains and further uses the spatial spreading matrix for antenna selection computation in a transmitter. The spatial spreading matrix is designed such that a receiver is able to know and utilize the spatial spreading matrix for computing transmission antenna selection, receiver antenna selection and joint transmission/receiving antenna selection. The use of this spatial spreading matrix for antenna selection computation provides increased accuracy in antenna selection for transmission of spatial data streams, where the number of spatial data streams is less than the number of transmit or receive chains between the transmitter and receiver, and the number of transmit or receive chains is less than the corresponding transmission or receiving antennas.
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