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Coding and decoding method and communication device of polar code

A technology of communication equipment and polar codes, which is applied in the field of coding and decoding of polar codes, can solve problems such as unsatisfactory performance of coding and decoding of polar codes, and achieve the effect of improving performance

Active Publication Date: 2020-09-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the application process at this stage, the coding and decoding performance of polar codes is not ideal and needs to be further improved.

Method used

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  • Coding and decoding method and communication device of polar code
  • Coding and decoding method and communication device of polar code
  • Coding and decoding method and communication device of polar code

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Embodiment Construction

[0047] The technical solutions in this application will be described below in conjunction with the accompanying drawings.

[0048] figure 1 It is a wireless communication system applicable to the embodiment of this application. The wireless communication system may include at least one network device, and the network device communicates with one or more terminals. The network device may be a base station, or a device integrated with a base station and a base station controller, or other devices with similar communication functions.

[0049] The terminals involved in the embodiments of the present application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems. The terminal can be a mobile station (Mobile Station, MS), a subscriber unit (subscriber unit), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data ca...

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Abstract

The invention provides a coding / decoding method for a polar code and communication equipment. The coding and decoding performance of the polar code can be improved. The method comprises the steps thatthe communication equipment obtains to-be-coded bits or to-be-decoded bits; determining first reliability of each polar channel in N polar channels of the polar code of which master code length is Nand information bit number is K, wherein the first reliability is the reliability of the polar channels before rate matching; obtaining reliability variable quantity of target polar channels in the Npolar channels according to a rate matching parameter, the master code length and a polar weight factor, thereby determining an information bit serial number set, wherein the target polar channels areall polar channels or part of polar channels in the N polar channels; and carrying out polar coding on the to-be-coded bits or decoding the to-be-decoded bits according to the information bit serialnumber set.

Description

technical field [0001] The present application relates to the field of communication, and in particular to a coding and decoding method of a polar code and a communication device. Background technique [0002] As the most basic wireless access technology, channel coding plays a vital role in ensuring the reliability of data transmission. In an existing wireless communication system, generally, a Turbo code, a Low Density Parity Check code (Low Density Parity Check, LDPC) and a polar (Polar) code are used for channel coding. Turbo codes cannot support information transmission with too low or too high a code rate. For the transmission of short and medium packets, Turbo codes and LDPC codes are difficult to achieve ideal performance under limited code length due to their own coding and decoding characteristics. In terms of implementation, Turbo codes and LDPC codes have high computational complexity in the process of encoding and decoding. Polar (Polar) codes are theoretical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/13
CPCH03M13/13
Inventor 黄凌晨李榕陈莹张公正王俊
Owner HUAWEI TECH CO LTD