Patent · US Active

Coding and modulation apparatus using non-uniform constellation

US10855398B2 · kind B2 · utility

1Cited by

1References

18Claims

0Family size

Assignee

SONY GROUP CORPORATION · JP

Inventors

Thomas HANDTE · Stuttgart, DE
Daniel Schneider · Stuttgart, DE
Nabil Loghin · Stuttgart, DE
Ben Eitel · Stuttgart, DE

Key dates

Filing date	Jul 7, 2016
Grant date	Dec 1, 2020
Priority date	—
Expiry date	Jul 22, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/0057
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 a low density parity check code, LDPC, 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, wherein said modulator is configured to use, based on the total number N of constellation points of the constellation and the code rate R, a particular non-uniform constellation, which has been optimized using the peak-to-average power ratio (PAPR).

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