Sub-band based composite digital time domain signal processing
US10715366B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Feb 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2636
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments include digital signal processing units, a transmitting device for a wireless communication system and methods of processing a composite time domain signal having a plurality of parallel and independent signals that collectively form a parallel communication. It is proposed a new waveform configuration suitable for 5G and that is able to reduce out-of-band (OOB) emissions which are received on a first time domain signal associated to a first sub-band where the OOB emissions originate from an OFDM time domain signal associated with a second sub-band adjacent to the first sub-band. The proposed solution is partly based on filtered-OFDM with the exception that sub-band filtering is not performed on all the samples of the stream of OFDM symbols. Instead, filtering is performed only, for each OFDM time domain signal, where transition occurs between consecutive OFDM symbols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.