Calibration correction for implicit beamforming in a wireless MIMO communication system
US7729439B2 · kind B2 · utility
49Cited by
1References
47Claims
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Key dates
| Filing date | Sep 18, 2007 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Aug 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03802
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A transmitter beamforming technique for use in a MIMO wireless communication system determines a partial description of a reverse channel without determining a full dimensional description of the reverse channel. A correction matrix is developed from the partial description of the reverse channel and a description of the forward channel. The correction matrix is used to process signals to be transmitted via the forward channel, and a steering matrix is used to perform beamforming in the forward channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.