SC-FDMA transmission device and SC-FDMA transmission signal formation method
US8363677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2009 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/003
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
It is possible to provide an SC-FDMA transmission device and an SC-FDMA transmission signal formation method which improve the transmission efficiency of the SC-FDMA transmission signal. The SC-FDMA transmission device (100) performs the discrete Fourier transform process on a primary modulation signal sequence formed by N primary modulation symbols to obtain a plurality of frequency components, which are respectively mapped onto different subcarriers. The obtained SC-FDMA symbol is subjected to the inverse Fourier transform process before being transmitted. A propagation path information decoding unit (155) acquires frequency selection characteristic in a propagation path to/from a reception side. A cyclic shift unit (110) and a correlation characteristic judgment unit (115) adjust the frequency response of the SC-FDMA symbol according to the frequency selection characteristic. The adjustment is performed by a result of correlation obtained by performing a correlation calculation between the propagation path frequency selection characteristic and the SC-FDMA symbol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.