Decoder-supported iterative channel estimation

US11050590B2 · kind B2 · utility

Assignees

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE
• FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG · DE

Inventors

• Gerd Kilian · Erlangen, DE
• Jakob Kneissl · Erlangen, DE
• Frank Obernosterer · Nuremberg, DE
• Raimund Meyer · Fürth, DE
• Eberhard Gamm · Ebermannstadt, DE
• Joerg Robert · Vreden, DE
• Johannes Wechsler · Spalt, DE
• Josef Bernhard · Nabburg, DE
• Michael Schlicht · Erlangen, DE

Key dates

• Filing date: Oct 16, 2020
• Grant date: Jun 29, 2021
• Expiry date: Oct 16, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L25/0236
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A data receiver configured to receive a signal having at least two partial data packets, the data receiver being configured to estimate a state of a transmission channel, to obtain first channel state information, to demodulate a first set of received symbols from different data packets, to obtain a first set of received encoded bits, wherein the data receiver is configured to decode the first set of received encoded bits to determine, a first set of estimated encoded bits which corresponds more likely to a first set of transmitted encoded bits than the received encoded bits, and to map the first set of estimated bits to estimated transmission symbols using a mapping rule matching a transmitter-side mapping rule to obtain a first set of estimated transmission symbols, and to determine second channel state information using the first set of estimated transmission symbols.