Method for processing OFDM signal, system for transmitting OFDM signal, and device
US12267196B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2023 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Nov 17, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2615
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provided are a method for processing an OFDM signal, a system for transmitting an OFDM signal, and a device, which effectively reduce a peak to average power ratio of the OFDM signal. The method includes: determining a frequency of each of OFDM modulation symbols, where the OFDM modulation symbols are obtained by digitally modulating the OFDM signal; determining, based on a frequency domain function and the frequency of the OFDM modulation symbol, a frequency domain function value corresponding to the frequency of the OFDM modulation symbol, where the frequency domain function is obtained by linearly combining a linear function with trigonometric functions having different frequencies; determining, according to the frequency domain function value corresponding to each OFDM modulation symbol, an encoding matrix corresponding to the OFDM signal; and processing the OFDM signal by the encoding matrix corresponding to the OFDM signal, to obtain a target OFDM signal conforming to a change rule of the frequency domain function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.