Radio over fiber system and nonlinear compensation method
US12057883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2022 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Sep 12, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/5057
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio over fiber (RoF) system and a nonlinear compensation method, where the RoF system includes a BBU and an RRU, the RRU includes an electrical component, and the BBU includes a downlink and a feedback link. A predistortion module and an optical component are disposed on the downlink, an input end of the feedback link is connected to an output end of the optical component, and the feedback link is configured to feed back, to the predistortion module, a nonlinear signal output by the optical component. The RoF system further includes a temperature detection module configured to detect a temperature value of the electrical component, and transmit the temperature value to the predistortion module. The predistortion module is configured to perform digital predistortion DPD on a baseband signal based on the temperature value and the nonlinear signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.