Method and apparatus for precoding in a two transmit antenna closed-loop MIMO fixed wireless backhaul network
US9231678B2 · kind B2 · utility
1Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Mar 17, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Mar 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03904
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system is disclosed for precoding in a two transmit antenna MIMO system, for example, a wireless backhaul network. The method only uses the first column of the 2×2 precoder as the feedback information. When the feedback information is available to the transmitter, the transmitter performs an interpolation and reconstruction procedure to obtain the precoder matrix for each subcarrier. The method offers no significant loss in performance, with reduced computational complexity and feedback overhead compared to conventional known matrix representation methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.