Radio communication apparatus and radio communication method
US9503960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jul 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2613
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An interfering wave is detected using, in a received signal including a preamble and a control signal field, a plurality of symbols including a symbol configuring the preamble and a symbol configuring the control signal field. The received signal has one of a plurality of transmission formats that use at least either a first frequency band or a second frequency band. In a signal quality detector, a symbol differential calculator calculates, in each of the first frequency band and the second frequency band, differences between a certain number of symbols adjacent to one another at predetermined positions in a time domain among the plurality of symbols. A square operator performs square operations on results of the calculation of differences. An interference determiner determines, using results of the square operations, whether each of the first frequency band and the second frequency band includes an interfering wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.