OFDM signal transmission method and apparatus
US7742533B2 · kind B2 · utility
29Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2005 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Jan 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An orthogonal frequency division multiplexing (OFDM) signal transmission apparatus which transmits OFDM signals by using a plurality of transmission antennas includes a subcarrier setting device which sets signals for subcarriers so as to use some of the subcarriers of the OFDM signals as pilot subcarriers to transmit pilot signals and use the remaining subcarriers as data subcarriers to transmit data signals, the subcarrier setting device changing polarities of signals for the pilot subcarriers for each transmission antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.