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Rate matching method and device for polar code, and communication device

A technology of rate matching and code length, applied in the field of communication, can solve problems such as reducing the performance of Polar codes

Active Publication Date: 2020-03-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Using random punching to achieve rate matching reduces the performance of Polar codes

Method used

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  • Rate matching method and device for polar code, and communication device
  • Rate matching method and device for polar code, and communication device
  • Rate matching method and device for polar code, and communication device

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Embodiment Construction

[0069] The embodiments of the present application are applicable to various communication systems, therefore, the following description is not limited to a specific communication system. Global System of Mobile communication (GSM for short) system, Code Division Multiple Access (CDMA for short) system, Wideband Code Division Multiple Access (WCDMA for short) system, General Packet Radio Service ("GPRS" for short), Long Term Evolution ("LTE") system, LTE Frequency Division Duplex (FDD) system, LTE time division Duplex (Time Division Duplex, "TDD" for short), Universal Mobile Telecommunications System (Universal Mobile Telecommunication System, "UMTS" for short), etc. The information or data coded and processed by the base station or the terminal in the above system using traditional Turbo codes and LDPC codes can all be coded using the Polar codes in this embodiment.

[0070] The terms "component", "module", "system" and the like are used in this specification to refer to a co...

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Abstract

Embodiments of this application provide a polar polar code rate matching method and apparatus, and a communications apparatus. The rate matching method includes: determining N to-be-encoded bits, where the N to-be-encoded bits include N1 information bits, and both N1 and N are positive integers; encoding the N to-be-encoded bits to obtain N encoded bits; obtaining a first puncturing sequence based on an information bit length N1, the quantity N of the encoded bits, and a quantity Q of to-be-punctured bits; and performing puncturing on the N encoded bits based on the first puncturing sequence to implement rate matching. To-be-punctured bits indicated in the first puncturing sequence are obtained based on the information bit length N1, the quantity N of the encoded bits, and the quantity Q of to-be-punctured bits, and are not generated randomly. Therefore, polar code performance can be improved.

Description

technical field [0001] The embodiments of the present application relate to the communication field, and more specifically, relate to a polar code rate matching method and device, and a communication device. Background technique [0002] Communication systems usually use channel coding to improve the reliability of data transmission and ensure the quality of communication. The polar codes (Polar codes) proposed by Turkish professor Arikan are the first good codes that can reach Shannon capacity and have low encoding and decoding complexity. Polar code is a linear block code whose coding matrix is ​​G N , for example, the encoding process is in Is a binary row vector with a length of N (that is, the mother code length); G N is an N×N matrix, and defined as log 2 N matrix F 2 The Kronecker product of . [0003] the above matrix [0004] During the encoding process of Polar code, Some of the bits are used to carry information, called information bits, and the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0057H04L1/0069H03M13/13H03M13/6362H03M13/6368
Inventor 陈莹罗禾佳张华滋张公正李榕周悦
Owner HUAWEI TECH CO LTD