OFDMA device and method of correcting frequency offset in OFDMA signals
US7912137B2 · kind B2 · utility
1Cited by
1References
28Claims
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Key dates
| Filing date | Jan 10, 2007 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Nov 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2662
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An Orthogonal Frequency Division Multiple Access (OFDMA) device and method of correcting frequency offset in OFDMA signals computes an estimated frequency offset, which is used for producing a frequency offset-compensated mixer signal using a reference clock signal. The frequency offset-compensated mixer signal is used to produce a digital down-converted signal from an incoming OFDMA signal. The digital down-converted signal is digitally corrected for sampling errors using the estimated frequency offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.