Precoding technique for multiuser MIMO based on eigenmode selection and MMSE
US8306089B2 · kind B2 · utility
9Cited by
1References
32Claims
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Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | May 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0417
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present disclosure proposes a method for precoding of transmission signal at an access point of a multiuse system based on eigenmode selection and minimum mean square error (MMSE) processing. The most reliable eigenmodes of every multiple-input multiple-output (MIMO) channel in the system can be selected at each user terminal and corresponding eigenvalues and eigenvectors can be fed back to the access point. The linear MMSE precoding (beamforming) applied at the access point based on the selected eigenmodes may provide an improved transmission capacity performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.