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Encoding and decoding methods and devices for polar code

A coding method and polar code technology, applied in coding, code conversion, coding components, etc., can solve the problems of high bit error rate, inability to decode correctly by the decoder, waste of channel capacity, etc., and improve the channel capacity and coding complexity. The effect of low, good scalability

Active Publication Date: 2018-02-23
ALCATEL LUCENT SHANGHAI BELL CO LTD
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AI Technical Summary

Problems solved by technology

[0010] In fact, however, for smaller packets, the channels used for the bits other than the free bits are not really of zero capacity, but instead have a large capacity, although still lower than those of the channels carrying the free bits
This means that if they are not utilized, the channel capacity will be wasted
But there is a corresponding problem with using them, that is, if these channels are used to carry free bits, the decoder will not be able to decode them correctly due to the extremely high bit error rate that exists on these channels

Method used

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  • Encoding and decoding methods and devices for polar code
  • Encoding and decoding methods and devices for polar code
  • Encoding and decoding methods and devices for polar code

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Embodiment Construction

[0042] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe operations as sequential processing, many of the operations may be performed in parallel, concurrently, or simultaneously. In addition, the order of operations can be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The processing may correspond to a method, function, procedure, subroutine, subroutine, or the like.

[0043] The term "computer equipment" in this context, also referred to as "computer", refers to an intelligent electronic device that can perform predetermined processing procedures such as numerical calculations and / or logic calculations by running predetermined programs or instructions, which may include a processor and The memory is realized by the processor...

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Abstract

The invention provides optimized encoding and decoding methods for a polar code and corresponding encoder and decoder. The encoding method comprises the following steps of providing an input bit to beencoded, wherein the input bit to be encoded comprises a free bit and the rest of bits; dividing the rest of bits into a plurality of segments; providing a connection code; connecting one segment ofthe rest of bits to the connection code in order to form a connection segment and the reset of disconnected segments; and carrying out polarization coding on the free bit, the connection segment and the disconnected segments to obtain the polar code.

Description

technical field [0001] The present invention relates to coding and decoding of polar codes, in particular to a method and device for coding and decoding polar codes suitable for small packet transmission. Background technique [0002] In the fifth generation wireless communication technology (5G), machine-to-machine communication (Machine Type Communication, MTC) plays an important role. MTC-based user equipment (User Equipment, UE) is generally relatively simple and powered by a battery, and the simplification and battery life of these equipment bring challenges to supporting MTC services. [0003] In the paper "Channel polarization: a method for constructing capacity achieving codes for symmetrical binary-input memoryless channels" submitted by Professor Erdal Arikan of Bilkent University in Turkey in 2007 and subsequently published, Polar Code was proposed for the first time, and It is proved theoretically that polar codes can achieve Shannon capacity under binary input ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0041H04L1/0045H04L1/0057H04L1/0065H04L1/08H03M13/13H03M13/2906H04L1/0058
Inventor 陈宇
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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