Wireless communications apparatus and wireless communication method
US7664011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2008 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Jul 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0092
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention performs orthogonal frequency division multiplex processing on a transmission signal to form an OFDM modulation signal (daubed in FIG.) and performs orthogonal frequency division multiplex processing and code division multiple access processing on a transmission signal to form an OFDM-CDM modulation signal (shaded in FIG.) to transmit the OFDM modulation signal and the OFDM-CDM modulation signal, which makes it possible to transmit data in a very high rate using the OFDM modulation signal while making it possible to transmit data in a higher quality using the OFDM-CDM modulation signal than using the OFDM-modulation signal, although it is slightly inferior to OFDM modulation in terms of high rate transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.