Geschichtetes Divisions-Multiplexing mit Abtastratenerhöhter Oberer Schicht und Dedizierten Verschachtelungsstufen

Details

Veröffentlichungs-Nr.

EP3382922

Aktenzeichen

EP17164111

Anmeldetag

31. März 2017

Veröffentlichung

13. November 2019

Erteilung

13. November 2019

Rechtsraum

EP

IPC

H04L1/00H04J11/00H04L5/00H04L27/34

Abstract

The present invention relates to a technique for broadcasting digital data, and in particular to layered-division multiplexing (LDM) in connection with orthogonal frequency division multiplexing, wherein the upper layer data is modulated only on every M-th OFDM subcarrier in order to reduce inter-carrier interferences. The invention provides separate interleaving stages for LDM compound cells carrying cells of more than one layer and for LDM compound cells carrying cells of only one layer. In this manner, time- and frequency interleaving can be performed on an LDM compound signal while maintaining subcarrier spacing for compound cells carrying cells of more than one layer.

Anmelder

Firma

Panasonic Intellectual Property Corporation of America

Land

🇺🇸 USA

Fachgebiete