Method and apparatus for constellation design based on stepped hierarchical modulation
US11128516B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2020 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Nov 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/3488
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are a method and an apparatus for a constellation design based on stepped hierarchical modulation. According to the present invention, there is provided an apparatus for a constellation design based on stepped hierarchical modulation comprising a processor and a memory connected to the processor, wherein the memory stores program instructions to be executed by the processor so as to generate an initial constellation including M (M is a natural number) signal points based on stepped θ-QAM, set a constellation parameter to control a degree of data protection, move signal points located in an m-th quadrant by a preset distance in a preset direction by applying the constellation parameter to the initial constellation, and map information bits encoded in the moved signal points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.