Methods and apparatuses for windowing-based channel filtering in an OFDM-based communication network
US12136994B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 2020 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Aug 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/1045
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method and an apparatus for handling signals in an OFDM-based communication network (100) received at a receiver (120). The method comprises obtaining a signal in time domain, the signal comprising a payload signal sent from a transmitter (110) towards the receiver (120) as well as an interference signal, the payload signal residing in a first frequency band and the interference signal residing in a second frequency band outside the first frequency band. The method further comprises separating the payload signal from the interference signal using a filter, and processing (208) the payload signal with a time window (W, Wp), or the separated interference signal with a time window, (W, Wi), or processing both the separated payload signal with a window (W, Wp) and the obtained signal with a window (W, Wi), the window (W, Wp, Wi) being substantially an OFDM symbol wide, so as to achieve a output signal/first output signal comprising the payload signal and a time-windowed interference signal and/or a second output signal comprising the interference signal and a time-windowed payload signal. The windowed signals become attenuated by the FFT so that the wanted signal are ach…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.