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Data frame transmitting method and receiving method based on pipelining

A technology of sending method and receiving method, applied in the direction of digital transmission system, electrical components, error prevention, etc., can solve the problems of time extension, high cost, low flexibility, etc., achieve fast processing, save time, and improve real-time performance

Active Publication Date: 2015-03-04
CHENGDU AEROSPACE COMM EQUIP CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to: aim at the problems existing in the prior art, provide a kind of pipeline-based data frame sending method, receiving method, solve the problem that when the existing serial processing method is used to process the data frame, the time delay is long, the real-time performance is poor, Problems that affect communication efficiency; solve the existing problems of using multiple chips to process data frames, occupying a lot of hardware resources, high cost, large volume, low flexibility, and low resource utilization efficiency

Method used

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  • Data frame transmitting method and receiving method based on pipelining
  • Data frame transmitting method and receiving method based on pipelining
  • Data frame transmitting method and receiving method based on pipelining

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Embodiment

[0032] Usually, a data frame is composed of a frame header (the frame header consists of M bytes) and a message word (each message word contains N bytes (N can be specified according to actual conditions)). The frame header is the data control information of this frame, and the first 3 bytes include: relay information bit, Unicom flag bit, message word digit, encryption flag bit; the last M-3 bytes include: spare bit, control bit, version number, platform number and other information. The first 3 bytes are not sent to the encryption machine, and the last M-3 words need to be sent to the encryption machine for encryption. The number of message words is 1 to K (K>1, K is the maximum number of message words). The data frame segmentation follows the principle: the frame header is an independent section, called the frame header section; the message word part, two message words form a section.

[0033] Taking a frame of data (6 message words, each containing t bytes) as an example...

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Abstract

The invention provides a data frame transmitting method and a receiving method based on pipelining, relates to the processing field of data frames and solves problems that the serial processing method has longer time delay and worse practicability and influences communication efficiency during the processing of data frames. The technical scheme is as follows: when the data is transmitted, the to-be-transmitted data is extracted and divided into a frame header section and a data section, and then the frame header section and the data section are data-encrypted and encoded in segments in a pipelining manner; when the data is received, the frame header section and the data section are decoded and data-decrypted in segments in the pipelining manner. With the adoption of the pipelining processing manner, the rapid processing of the data frames is realized, the processing timeliness of the data frames is improved and the actual requirement is satisfied; compared with the traditional method, the time of processing the data frames with 6 information bits in the data transmission process is saved by 8.04 milliseconds.

Description

technical field [0001] The invention relates to the field of data frame processing, in particular to a pipeline-based data frame sending method and receiving method. Background technique [0002] Ground-to-air data link terminal equipment is mainly used to upload command commands, share situational information, and share platform status information. [0003] The intermediate frequency processing module is one of the important components of the ground-air data link terminal equipment. It mainly realizes intermediate frequency signal demodulation, transmits data modulation, realizes the physical layer and link layer waveform of the data link, and realizes the interconnection and intercommunication with the security machine. IF data frame processing capability and method are important indicators to measure link performance, which affect communication efficiency and communication quality. [0004] The existing data frame processing methods mainly adopt conventional serial proce...

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0083
Inventor 余水李川苏本磊曾庆红杨自力
Owner CHENGDU AEROSPACE COMM EQUIP CO LTD
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