Transmission concept using multi-user superposition coding

US10979204B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Thomas FEHRENBACH · Berlin, DE
• Baris GOEKTEPE · Berlin, DE
• Cornelius HELLGE · Berlin, DE
• Johannes DOMMEL · Berlin, DE
• Lars THIELE · Berlin, DE

Key dates

• Filing date: Feb 8, 2019
• Grant date: Apr 13, 2021
• Expiry date: Feb 8, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2027/002
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

The transmission of data signals transmitted by a plurality of transmitters may be rendered more efficient by combining multi-user superposition coding with appropriate phase shift estimation at the receiver so that phase shift compensation at the transmitter's side may lead to a superposition of the data signals which may be demapped correctly so as to obtain information data per data signal. Owing to the combination, the concept is applicable to typical uplink situations or downlink situations of separate contributing BSs: contrary to the simple downlink situation where the data signals stem from one BS and are superimposed in one domain, namely the base station's domain, the data signals to be superimposed stem from separate transmitters, such as user entities or mobile terminals in the typical uplink situation, or different base stations in the downlink situation.