Apparatus for controlling a hybrid automatic repeat request protocol (HARQ) in a mobile communication system

A mobile communication system, controller technology, applied in transmission systems, digital transmission systems, error prevention/detection using return channels, etc., can solve problems such as increased power consumption and complexity

Inactive Publication Date: 2005-10-19
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
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Problems solved by technology

Therefore, if N increases, the number of turbo decoders also increases, resulting in increased power consumption and complexity

Method used

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  • Apparatus for controlling a hybrid automatic repeat request protocol (HARQ) in a mobile communication system
  • Apparatus for controlling a hybrid automatic repeat request protocol (HARQ) in a mobile communication system
  • Apparatus for controlling a hybrid automatic repeat request protocol (HARQ) in a mobile communication system

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Embodiment Construction

[0080] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, the same or similar elements are denoted by the same reference numerals even if they appear in different drawings. In the following description, detailed descriptions of well-known functions and structures incorporated herein will be omitted for conciseness.

[0081] The apparatus and method of the present invention for solving the aforementioned problems are now described.

[0082] First, most systems implement the upper layers, including the multiplexing layer, by software loaded into a central processing unit (CPU). Therefore, the present invention proposes a method of implementing a hybrid automatic repeat request (HARQ) controller of the physical layer by hardware in order to solve the power consumption problem and the maximum driving clock problem of the mobile station and reduce the overload of the CPU. The basic structure of the ...

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Abstract

An apparatus for controlling a Hybrid Automatic Repeat Request (HARQ) is provided. In the apparatus, a physical layer includes a decoder for decoding a control message received over the packet data control channel, a demodulator for demodulating packet data received over the packet data channel, and a turbo decoder for decoding the demodulated packet data. A physical layer's HARQ controller determines whether to demodulate and decode the received packet data depending on a decoding result of the control message, outputs the decoded control message to the demodulator and the turbo decoder for demodulation and decoding of the received packet data, controls output of a response signal according to decoding result of the packet data, and delivers the turbo-decoded packet data to an upper layer.

Description

technical field [0001] The present invention generally relates to an apparatus and method for controlling automatic repeat request (ARQ) in a high-speed data transmission system, and in particular, the present invention relates to an apparatus and method for controlling hybrid automatic repeat request (HARQ) in a high-speed data transmission system method. Background technique [0002] Mobile communication systems have been developed for providing high-quality call services to mobile users. With the development of mobile communication systems, methods for transmitting larger amounts of data to users are being studied. In addition, mobile communication systems have been converted from analog systems to digital systems. Using this digital system, mobile communication systems are now able to transmit larger amounts of data to users at high speeds. [0003] Generally, in a digital mobile communication system where the channel state changes considerably and different types of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18H04W28/00H04W28/04
CPCH04L1/008Y02B60/50H04L1/1812H04L1/18
Inventor 金潣龟河相赫许真佑
Owner SAMSUNG ELECTRONICS CO LTD
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