Channel profile estimation for OFDM-based communication system
US8135078B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | May 1, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Dec 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/022
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device and method for performing a channel profile estimation for an OFDM-based wireless communication system uses an averaged frequency coherence metric to select a particular channel profile, which is a current channel profile estimate. The averaged frequency coherence metric is derived using correlations between pilot subcarriers of an OFDM-based signal at predefined subcarrier locations for multiple frames of the OFDM-based signal. The selected channel profile may be used for channel estimation, as well as for link adaptation, to improve the performance of these processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.