System and method for implementing error detection and retransmission based on enable signal line feedback

Abstract

The invention discloses a system and a method of achieving error detection and resending based on enable signal line feedback. The system comprises a sender, a receiver, an enable signal line and a data transmission line, wherein the enable signal line is connected between the sender and the receiver. Changes of high-low level parameters on the enable signal line are utilized by the system so as to ensure that error resending information is transmitted to the sender through the receiver. The sender has a sender logical input and output unit, and the receiver has a receiving part logical input and output unit, wherein output of the enable signal line is a low level when the output of the sending part logical input and output unit or the output of the receiving part logical input and output unit is a low level so as to ensure that the receiver transmits the error resending information to the sender. Due to the adoption of the system and the method of achieving error detection and resending based on the enable signal line feedback, edges of high-low level changes are adopted to conduct error resending information feedback and conduct direct triggering on the resending process using the edges of high-low level changes, and therefore work efficiency of an error detection and resending mode is improved.

Description

technical field [0001] The present invention relates to the technical field of data transmission, in particular to a system and method for realizing error detection and retransmission based on the feedback of an enabling signal line. Background technique [0002] Error detection and retransmission is a commonly used error control method in data transmission. It is effective when sudden errors and channel interference are serious. It is widely used in computer data communication and can achieve a very high bit error rate index. [0003] When working in the error detection and retransmission mode, after the sending end sends a set of data, the receiving end checks the data received from the sending end, and if an error is detected in the data transmission, the sending end is required to resend the set of data through the feedback channel , the sender can send the next set of data until the receiver checks correctly. [0004] The error detection and retransmission method can a...

AI Technical Summary

Problems solved by technology

Among them, the first two parts belong to the time required for data transmission. Under certain transmission conditions, the time of these two parts will be determined, so improving the work efficiency of the error detection and retransmission method can only reduce the feedback described in part 3 communication time

[0005] However, the encoding and decoding in the existing feedback communication are generally more complicated, and the encoding and decoding all need to take up extra time for data transmission, so that the above-mentioned third part takes a long time, resulting in The work efficiency of the error detection and retransmission method is reduced

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