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Method and device for cyclic redundancy check

A cyclic redundancy check and equipment technology, applied in the field of cyclic redundancy check, can solve problems such as poor link performance of communication systems

Active Publication Date: 2019-02-26
VIVO MOBILE COMM CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for cyclic redundancy check to solve the problem of poor link performance in a communication system

Method used

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  • Method and device for cyclic redundancy check
  • Method and device for cyclic redundancy check
  • Method and device for cyclic redundancy check

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Embodiment Construction

[0044] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045]It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, wideband code divi...

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Abstract

The invention provides a method and device for cyclic redundancy check. The method includes the steps: determining a load portion, wherein the load portion includes at least one information field, andthe at least one information field is used for carrying information bits; determining an input bit for generating a cyclic redundancy check CRC bit, wherein the input bit includes the information bits carried in part or all of the information field of at least one information field; according to the input bit, generating a target CRC bit; and generating control information including the load portion and the target CRC bit. The method for cyclic redundancy check avoids the situation that a receiving end device considers that the control information transmission is in error when the informationbit transmission is error-free and the filling bit transmission error occurs, or avoids the error in the partial information bit transmission while the important information bits have no error, and when part of information bit receiving end with the transmission error can be tolerated, the receiving end device considers that the control information transmission error occurs, so that the link performance of the communication system is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, and more particularly to a method and equipment for cyclic redundancy check. Background technique [0002] Cyclic Redundancy Check (CRC) is the most commonly used verification method in the field of data communication. CRC is essentially a data transmission error detection function. The sending end device performs polynomial calculation on the data, and the obtained result Attached to the frame to be transmitted, the receiver device also performs similar polynomial calculations on the data to ensure the correctness and integrity of the data transmission. [0003] In the current CRC check method for control information in the Physical Downlink Control Channel (PDCCH), when there is no error in the transmission of information bits but an error in the transmission of filling bits, the receiving end device will also think that the transmission of the control information is wrong, result...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0061
Inventor 沈晓冬潘学明纪子超孙鹏
Owner VIVO MOBILE COMM CO LTD
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