Method and apparatus for generating OFDM signals
US9998313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2017 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Jan 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method in a transmitter circuit (200) of generating a signal comprising a first sequence of OFDM symbols, which are to be transmitted within a frequency sub band of a second sequence of OFDM symbols is disclosed. A first CP of the second sequence of OFDM symbols has a first duration, and a second CP of the second sequence of OFDM symbols has a second duration. In order to generate both the first and the second cyclic prefix with an integer number of equidistant samples, a first sampling rate is required. The method comprises generating (100) the signal comprising the first sequence of OFDM symbols at a second sampling rate, lower than the first sampling rate, and adjusting (110) a sampling phase during CPs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.