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Method and device for parallel polar code encoding/decoding

A technology of polar coding and polar code, applied in the field of parallel polar code coding/decoding, which can solve the problems of low reliability and low possibility of being correctly decoded

Active Publication Date: 2019-05-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In other words, bits encoded in a high-capacity subchannel will experience a channel with a high Signal-to-Noise Ratio (SNR) and will have a relatively high reliability or high probability of being correctly decoded, Whereas bits encoded in a low-capacity sub-channel will experience a channel with a low SNR and will have low reliability or a low probability of being correctly decoded

Method used

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  • Method and device for parallel polar code encoding/decoding
  • Method and device for parallel polar code encoding/decoding
  • Method and device for parallel polar code encoding/decoding

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Embodiment Construction

[0042] The making and using of the embodiments are discussed in detail below. It should be appreciated, however, that the present disclosure provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific examples described are merely illustrative of specific ways to make and use embodiments of the disclosure, and do not limit the scope of the claims. The term "parity bits" is used loosely to denote any auxiliary bits used for error detection when decoding information bits, including (but not limited to) cyclic redundancy check (CRC) bits, checksum bits, hash function bits , encryption code, repetition code or error detection bit or code. The terms "parity bits", "parity check (PC) bits", "dynamically frozen bits" and "parity check (PC) frozen bits" (paritycheck (PC) frozen bits) or simply "PF bits" are used in are used interchangeably in this disclosure.

[0043] Since code length is directly related to subchannel relia...

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Abstract

Embodiments of this disclosure enhance the error detection performance of parallel polar encoding by cross-concatenating parity bits between segments of information bits transmitted over different sets of sub-channels. In one embodiment, a first segment of information bits is transmitted over a first set of sub-channels, and at least a second segment of information bits, and a masked parity bit, are transmitted over a second set of sub-channels. A value of the masked parity bit is equal to a bitwise combination of a first parity bit computed from the first segment of information bits and a second parity bit computed from the second segment of information bits. The bitwise combination may be a bitwise AND, a bitwise OR, or a bitwise XOR of the respective parity bits.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Application No. 62 / 402,862, filed September 30, 2016, entitled "Method and Apparatus for Parallel Polar Code Encoding / Decoding," and Application No. filed September 27, 2017 Priority is given to US application 15 / 717,745, entitled "Method and Apparatus for Encoding / Decoding of Parallel Polar Codes," the entire contents of which are incorporated by reference into this application as if reproduced. technical field [0003] The present invention relates generally to communications, and in particular embodiments, to a method and apparatus for parallel polar code encoding / decoding. Background technique [0004] Polar codes have been proposed as channel codes for future wireless communications and have been chosen for uplink and downlink enhanced Mobile Broadband (eMBB) control of new fifth-generation (5G) air interfaces Channel coding, also known as 5G new air interface (New Radio, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0057H04L1/0063H03M13/09H03M13/13H04L1/0041H04L1/0058
Inventor 张华滋张公正李榕王俊童文葛屹群
Owner HUAWEI TECH CO LTD
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