Methods of converting or reconverting a data signal and method and system for data transmission and/or data reception

US10826619B2 · kind B2 · utility

Assignee

• TECHNISCHE UNIVERSITÄT MÜNCHEN · DE

Inventors

• Georg BÖCHERER · Munich, DE
• Patrick SCHULTE · Munich, DE
• Fabian Steiner · Übersee, DE

Key dates

• Filing date: Dec 11, 2017
• Grant date: Nov 3, 2020
• Expiry date: Dec 11, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L27/3433
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method (C) for converting a data signal (U). The method comprises processes of (i) providing an input bit stream (IB) of input bits (IBj), the input bit stream (IB) being representative for the underlying data signal (U) to be converted, and (ii) applying to consecutive disjunct partial input bit sequences (IBk) of a number of k consecutive input bits (IBj) covering said input bit stream (IB) a distribution matching process (DM) to generate and output a final output bit stream (OB) or a preform thereof. The distribution matching process (DM) is formed by a quadrant constellation shaping process (QS) and configured to map a respective partial input bit sequence (IBk) to a constellation point of a four-dimensional 24·m-QAM constellation—in particular conveying two distinct polarizations for each of an in-phase and a quadrature component—with I and m being fixed natural numbers and with k and m fulfilling the relation 4·m≥k.