Convolutional code decoder and convolutional code decoding method

Abstract

The invention discloses a convolutional code decoder and a convolutional code decoding method. The convolutional code decoder carries out decoding according to receiving data and auxiliary data to obtain target data, and comprises an error detection data generation circuit, a channel coding circuit, a selection circuit and a viterbi decoding circuit. The error detection data generation circuit performs error detection operation on the auxiliary data to obtain error detection data. The channel encoding circuit is coupled to the error detection data generating circuit and is used for performingchannel encoding on the auxiliary data and the error detection data to obtain intermediate data. The selection circuit is coupled with the channel coding circuit and is used for generating to-be-decoded data according to the received data and the intermediate data. The Viterbi decoding circuit is coupled with the selection circuit and used for decoding the to-be-decoded data to obtain the target data.

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...

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

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