Coding and modulation apparatus using non-uniform constellation
US10868706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2019 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | May 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0041
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A coding and modulation apparatus and method are presented. The apparatus comprises an encoder that encodes input data into cell words, and a modulator that modulates said cell words into constellation values of a non-uniform constellation. The modulator is configured to use, based on the total number M of constellation points of the constellation and the code rate, a non-uniform constellation from one or several groups of constellations each comprising one or more constellations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.