Hybrid automatic repeat request with feedback dependent BIT selection

Patent metadata

Field	Value
Publication number	US-9130748-B2
Application number	US-201213405250-A
Country	US
Kind code	B2
Filing date	Feb 25, 2012
Priority date	Feb 25, 2012
Publication date	Sep 8, 2015
Grant date	Sep 8, 2015

Abstract

A multi-bit HARQ feedback is transmitted by a receiver to a transmitter. The multi-bit feedback is a function of a level of convergence reached by a decoder when the previously transmitted coded data bits bit were decoded. The transmitter is configured to select a set of coded data bits for a retransmission as a function of the multi-bit feedback. In some embodiments, different redundancy versions of the coded data bits may be selected as a function of the multi-bit feedback. In other embodiments, a bit puncturing or bit repetition pattern may be selected as a function of the multi-bit feedback.

First claim

What is claimed is:

1. A data retransmission method implemented at a transmitter, said method comprising:
coding an information bit stream to generate coded data bits for transmission to a receiver;
transmitting a first set of the coded data bits to the receiver during a first data transmission;
receiving, from the receiver, a multi-bit feedback responsive to the first data transmission, wherein the multi-bit feedback indicates a probability of convergence reached by a decoder…

Assignees

• Bai Chunlong
• Göransson Bo
• Ericsson Telefon Ab L M

Inventors

• Bai Chunlong
• Göransson Bo

Classifications

• H04W72/541 Primary

  Electricity · mapped topic

• H04L1/0026

  Electricity · mapped topic

• H04L1/1864

  Electricity · mapped topic

• H04L1/1819

  Electricity · mapped topic

• H04L1/1671 Primary

  Electricity · mapped topic