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Methods and devices for sub-block decoding data signals

A signal and decoder technology, applied in the field of decoding digital signals, can solve the problems of not considering information symbol interference, sub-optimal performance/complexity tradeoff, etc., and achieve the effect of improving decoding error performance

Active Publication Date: 2018-06-29
INST MINES TELECOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, existing sub-block partitioning standards do not consider interference between sub-vectors of information symbols and may lead to suboptimal performance / complexity tradeoffs

Method used

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  • Methods and devices for sub-block decoding data signals
  • Methods and devices for sub-block decoding data signals
  • Methods and devices for sub-block decoding data signals

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Embodiment Construction

[0063] Embodiments of the invention provide an apparatus, method and computer program product for sub-block decoding of a vector of information symbols received over a transmission channel in a communication system, with an optimized trade-off between decoding performance and decoding computational complexity compromise. The transport channel is represented by an upper triangular matrix obtained by applying QR decomposition to the channel matrix representing the transport channel.

[0064] Embodiments of the invention provide an optimized partitioning of the upper triangular matrix according to a selection criterion, enabling reduction of estimation errors of sub-vectors of information symbols due to error propagation through interference between sub-vectors of information symbols.

[0065] Apparatuses, methods and computer program products according to various embodiments may be implemented in different types of systems. In particular, they may be implemented in a communicat...

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Abstract

Embodiments of the invention provide a decoder for decoding a signal received through a transmission channel in a communication system, THE signal comprising a vector of information symbols, wherein the decoder comprises: a processing unit (307) configured to determine at least one candidate set of division parameters and to perform a division of said vector of information symbols into a set of sub-vectors in association with each candidate set of division parameters, each pair of sub-vectors being associated with a division metric; a selection unit (309) configured to select one of said candidate sets of division parameters according to a selection criterion depending on said division metric; and a decoding unit (311) configured to determine at least one estimate of each sub-vector associated with said selected set of division parameters by applying a symbol estimation algorithm, wherein the decoder is configured to determine at least one estimate of the vector of information symbolsfrom said at least one estimate of each sub-vector of information symbols.

Description

technical field [0001] The present invention relates generally to digital communications, and in particular to methods and apparatus for decoding digital signals. Background technique [0002] Multiple-Input Multiple-Output (MIMO) technology is used in several communication systems to provide high transmission rates. MIMO technology exploits both spatial and temporal dimensions to encode and multiplex more data symbols using multiple transmit and / or receive antennas over multiple time slots. Accordingly, the capacity, range, and reliability of MIMO-based communication systems can be enhanced. Exemplary MIMO communication systems include wired (eg, fiber optic based) communication systems and wireless communication systems. [0003] By using multiple transmit and receive antennas to transmit data streams, MIMO systems deliver on the promise of high data throughput and improved coverage, reliability, and performance. The use of multiple transmit and receive antennas increas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L25/02
CPCH04L1/0009H04L1/0036H04L25/024H04B7/0891H04L25/03191H04L25/03961H04B7/0669H04B7/0413H03M13/251H03M13/43H03M13/6502H03M13/6522H04L1/0618H04L25/03286H04W4/70H04L1/0643H04L1/0668H04W84/045
Inventor A·梅伊里G·雷卡亚本-奥斯曼M-A·柯斯巴
Owner INST MINES TELECOM