Noise variance estimation
US8054914B2 · kind B2 · utility
7Cited by
1References
23Claims
0Family size
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Key dates
| Filing date | Jan 30, 2008 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Mar 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/206
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for estimating noise variance. A method for noise variance estimation comprises receiving a first multi-sample symbol and receiving a second multi-sample symbol. The first multi-sample symbol is subtracted from the second multi-sample symbol to produce a set of noise samples. The set of noise samples is used to produce a noise variance estimate. The noise variance estimate is applied in various tasks (e.g. channel estimation, log-likelihood ratio computation, and/or minimum mean squared error equalization) to process data provided to a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.