Satelliten Kommunikationssystem unter Verwendung hierarchischer Modulation um eine Vielzahl von modulierten Signale von hoher und niedriger Priorität zu übertragen.

Details

Veröffentlichungs-Nr.

EP2782266

Aktenzeichen

EP14154584

Anmeldetag

11. Februar 2014

Veröffentlichung

7. Dezember 2016

Erteilung

7. Dezember 2016

Rechtsraum

EP

IPC

H04B7/185H04H40/90

Abstract

A satellite communication system (10) using hierarchical modulation to transmit a plurality of modulated signals (12) to sub-regions (16) within a region (14). Each modulated signal includes high priority content and low priority content. The system (10) includes a satellite (20) equipped with a plurality of satellite transmitters (22) coupled to a plurality of antenna elements (24), e.g. a phased array of antenna elements (24). The antenna elements (24) are utilized selectively to direct a modulated signal from a satellite (20) transmitter to a distinct sub-region (16a). The satellite transmitters (22) and antenna also cooperate to broadcast the high-priority content to the region (14) such that a ground receiver (30) traveling from a first sub-region (16a) to an adjacent second sub-region (16b) adjacent will not experience a loss of high-priority content. First low-priority content of a first modulated signal (12a) directed to the first sub-region (16a) is independent of second low-priority content of a second modulated signal (12b) directed to the second sub-region (16b).

Anmelder

Firma

Delphi Technologies, Inc.

Land

🇺🇸 USA

Fachgebiete