Patent · US Active

Coding and modulation apparatus using non-uniform constellation

US11050507B2 · kind B2 · utility

0Cited by

11References

14Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Thomas HANDTE · Stuttgart, DE
Dana Ciochina · Stuttgart, DE
Nabil Loghin · Stuttgart, DE

Key dates

Filing date	Mar 8, 2018
Grant date	Jun 29, 2021
Priority date	—
Expiry date	Mar 22, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/0003
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A coding and modulation apparatus and method are presented, particularly for use in a system according to IEEE 802.11. The apparatus comprises an encoder configured to encode input data into cell words according to an LDPC code and a modulator configured to modulate said cell words into constellation values of a non-uniform constellation and to assign bit combinations to constellation values of the used non-uniform constellation. The modulator is configured to use a non-uniform constellation and bit labeling from one of the several groups of constellations, which constellation show quadrant and octant symmetry.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.