Method and apparatus for extracting resource block from signal
US10200229B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2015 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Jan 24, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/001
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The embodiments disclose a method in a base station for extracting a resource block at a frequency band from a signal received from a terminal device in a radio communication system employing OFDM. The method comprising: removing a CP portion corresponding to the resource block from the signal; for each of a predetermined number of successive symbols in the signal after the CP portion corresponding to the resource block has been removed, performing a FFT of the symbol, extracting a frequency domain signal corresponding to the frequency band from the FFT of the symbol, performing an IFFT on the extracted frequency domain signal to yield a time domain signal, and storing the time domain signal to form a time sequence by concatenation; performing a FFT of the stored time sequence; and extracting subcarriers corresponding to the resource block from the FFT of the stored time sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.