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An encoding method, decoding method and device

An encoding method and encoding technology, applied in the fields of encoding methods, decoding methods and devices

Active Publication Date: 2022-03-11
HISILICON OPTOELECTRONICS CO LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the existing scheme, the information entropy contained in each symbol after mapping is fixed, and because of the existence of the symbol, at least one bit is required to identify the symbol, so the contained information entropy must be greater than or equal to 1

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  • An encoding method, decoding method and device
  • An encoding method, decoding method and device
  • An encoding method, decoding method and device

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Embodiment Construction

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0044] First, combine Figure 1A , to describe the communication system provided by this application. The encoding method and decoding method provided in this application can be applied to the communication system. The communication system may include multiple devices, and the multiple devices may establish connections through a communication network and transmit data. In the following embodiments of the present application, a device that sends data is called an enco...

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Abstract

The present application provides an encoding method, a decoding method and a device, which are used to realize more flexible information entropy in data transmission, especially to realize smaller information entropy and improve the stability of long-distance data transmission. The coding method includes: firstly, splitting the obtained data to be coded into phase data and amplitude data according to preset rules; Constellation points include constellation points with an amplitude value of 0, each constellation point has a corresponding probability value, and the probability value indicates the probability of occurrence of the corresponding constellation point; then, based on the constellation diagram and the probability value corresponding to each constellation point, the amplitude data is The probability constellation diagram is shaped and encoded to obtain at least one set of symbol sequences; then at least one set of symbol sequences and phase data are combined and then encoded to obtain output data.

Description

technical field [0001] The present application relates to the communication field, and in particular to an encoding method, decoding method and device. Background technique [0002] In data transmission, the sending device usually needs to encode the data and send the encoded data to the receiving device. [0003] In a communication system, bit information can be divided into two types: amplitude bit and phase bit. The probability of the amplitude bits is adjusted, such as a probability constellation shaping (PCS) algorithm, and a sequence including redundant bits is output. Then, the sequence carrying the redundant bits and the phase bits are fused and then input to a forward error correction code (forward error correction, FEC) encoder for encoding to obtain a systematic code including information bits and parity bits. The encoded bit stream is mapped to a pulse amplitude modulation (PAM) signal according to the phase bit and the amplitude bit; or, according to the in-ph...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L27/34
CPCH04L1/004H04L1/0061H04L27/3405H04L27/3416H04L1/0042
Inventor 易鸿张娟
Owner HISILICON OPTOELECTRONICS CO LIMITED