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Apparatus and method for transmitting and receiving a signal in a communication system

A technology of a signal sending device and a signal receiving device, which is applied in the field of structured low-density parity-check codes to send and receive signals, and can solve problems such as increased hardware complexity

Inactive Publication Date: 2007-12-26
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

As a result, Type III HARQ-based signaling and reception operations lead to an involuntary increase in hardware complexity

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  • Apparatus and method for transmitting and receiving a signal in a communication system
  • Apparatus and method for transmitting and receiving a signal in a communication system
  • Apparatus and method for transmitting and receiving a signal in a communication system

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Embodiment Construction

[0048] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same or similar elements are denoted by the same reference numerals even if they are depicted in different drawings. In the following description, detailed descriptions of known functions and constructions incorporated herein have been omitted for clarity and conciseness.

[0049] The invention proposes a signal sending and receiving device and method in a communication system. In particular, the present invention proposes an apparatus and method for transmitting and receiving signals using a structured Low Density Parity Check (LDPC) code. Further, the present invention proposes a signal transmission and reception apparatus and method for minimizing hardware complexity by applying a Type II hybrid automatic repeat request (HARQ) scheme and a Type III HARQ scheme in the process of transmitting and receiving signals us...

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Abstract

An apparatus and method for transmitting a signal in a communication system. An information vector is encoded using a structured low density parity check (LDPC) coding scheme supporting a first coding rate, to generate a first structured LDPC codeword vector including a first part mapped to the information vector and a second part mapped to a parity vector. The first structured LDPC codeword vector is transmitted to a signal reception apparatus. If there is an error in the first structured LDPC codeword vector, the information vector is encoded using a structured LDPC coding scheme supporting a second coding rate, to generate a second structured LDPC codeword vector including the first part, the second part, and a third part mapped to an additional parity vector of the information vector. The third part is transmitted to the signal reception apparatus.

Description

technical field [0001] The present invention relates generally to apparatuses and methods for transmitting and receiving signals in a communication system, and in particular to apparatus and methods for transmitting and receiving signals in a communication system using a structured Low Density Parity Check (LDPC) code method. Background technique [0002] The next generation communication system has evolved into a packet service communication system. The packet service communication system is a system for transmitting burst packet data to a plurality of mobile stations (MS), and is designed for high-capacity data transmission. [0003] Various data transmission schemes, such as a Hybrid Automatic Repeat Request (HARQ) scheme and an Adaptive Modulation and Coding (AMC) scheme, have been proposed for next generation communication systems to increase data throughput. In order to support the HARQ scheme and the AMC scheme, the communication system must support various coding r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18
Inventor 庆奎范金永镐金宰烈尹皙铉
Owner SAMSUNG ELECTRONICS CO LTD
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