Method and apparatus for orthogonal frequency division multiplexing communication
US8170064B2 · kind B2 · utility
3Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2007 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Feb 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/0453
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for transmitting and receiving a digital signal using an orthogonal frequency division multiplexing (OFDM) communication system are provided. In this method, subcarriers are split into a plurality of subcarrier groups according to available frequency bandwidths and are respectively transmitted in a transmitting portion and the subcarrier groups are combined and are restored to the original signal in a receiving portion. Therefore, wireless resources may be used efficiently by combining with cognitive radio technology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.