Method and apparatus of sharing spectrum with legacy communication system
US8145133B2 · kind B2 · utility
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Key dates
| Filing date | Nov 25, 2008 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Nov 27, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of sharing spectrum with a legacy communication system includes acquiring spectrum correlation of the legacy communication system, and generating a transmit waveform based on the spectrum correlation. Unlike conventional cognitive radios that utilize spectrum holes only, the proposed method can also utilize spectrally correlated frequency components where primary-user signals are present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.