Receiver, transmitter, communication network, data signal and method improving a retransmission process in a communication network

US11405137B2 · kind B2 · utility

Assignee

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

Inventors

• Baris GOEKTEPE · Berlin, DE
• Thomas FEHRENBACH · Berlin, DE
• Cornelius HELLGE · Berlin, DE
• Thomas SCHIERL · Berlin, DE
• Yago SÁNCHEZ DE LA FUENTE · Berlin, DE
• Thomas Wiegand · Berlin, DE

Key dates

• Filing date: Mar 12, 2021
• Grant date: Aug 2, 2022
• Expiry date: Mar 12, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W84/042
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Data to be transmitted over a channel from a transmitter to a receiver is encoded to obtain a codeword. The codeword is defined by a plurality of variable nodes associated with a plurality of the check nodes of a bipartite graph representing the code. The codeword is transmitted over the channel such that certain variable nodes are transmitted prior to other variable nodes. The certain variable nodes are associated with a subset of the check nodes of the bipartite graph and define a subcodeword known at the receiver. At the receiver, a decodability of the transmitted codeword is estimated using the subcodeword prior to receiving all variable nodes of the codeword.