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Convolutional Code Decoder and Convolutional Code Decoding Method

A code decoder and data decoding technology, applied in the field of wireless communication systems, can solve problems such as increased power consumption, long waiting time at the receiving end, and extended computing time

Active Publication Date: 2022-05-17
REALTEK SEMICON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to effectively improve the correct rate of demodulation, the receiving end must spend a long enough time to wait and receive these repeated transmission signals.
However, this extended computing time will increase power consumption

Method used

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  • Convolutional Code Decoder and Convolutional Code Decoding Method
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  • Convolutional Code Decoder and Convolutional Code Decoding Method

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Embodiment Construction

[0033] The technical terms in the following explanations refer to the customary terms in this technical field. If some terms are explained or defined in this manual, the explanations of these terms shall be subject to the descriptions or definitions in this manual.

[0034] The disclosed content of the present invention includes a convolutional code decoder and a convolutional code decoding method. Since some of the components included in the convolutional code decoder of the present invention may be known components individually, on the premise of not affecting the full disclosure and practicability of the device invention, the details of the known components will be described below omitted. In addition, part or all of the flow of the convolutional code decoding method of the present invention can be in the form of software and / or firmware, and can be executed by the convolutional code decoder of the present invention or its equivalent device, without affecting the full scope...

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Abstract

The invention discloses a convolutional code decoder and a convolutional code decoding method. The convolutional code decoder and the convolutional code decoding method of the present invention use the predicted information to decode, so the signal can be demodulated / decoded more quickly. Early demodulation / decoding of the signal can end the computing state early to achieve the effect of power saving. The convolutional code decoder performs decoding according to a received data and an auxiliary data to obtain a target data, and includes a first error detection data generation circuit, a channel encoding circuit, a first selection circuit, a first Viterbi decoding circuit, A second error detection data generation circuit, a comparison circuit, a second selection circuit and a second Viterbi decoding circuit.

Description

technical field [0001] The present invention relates to a wireless communication system, in particular to a decoder and a decoding method of the wireless communication system. Background technique [0002] In a Low-Power Wide-Area Network (LPWAN), users are paying more and more attention to low power consumption. Therefore, how to achieve the effect of coverage enhancement within limited system resources has become a goal that has attracted the attention of various industry players in recent years. Under the market trend, the concept of the Internet of Things has gradually matured. A large number of devices need to be connected to the network, some of which require low data transmission and long waiting times. In this case, due to the pursuit of low energy consumption, low complexity, low cost, high coverage, etc., it may be necessary to operate in an environment with poor Signal-to-Noise Ratio (SNR) (for example: in a cell edge (celledge) or basement), so the transmittin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H03M13/23
CPCH04L1/0054H04L1/0059H03M13/23
Inventor 詹贵程张仲尧黄伟杰
Owner REALTEK SEMICON CORP
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