Half-duplex communication method, device and system

A half-duplex communication and data frame technology, which is applied in the field of communication, can solve the problems of low communication efficiency and long communication process, and achieve the effect of reducing the number of responses, reducing the response time, and reducing time-consuming

Inactive Publication Date: 2018-12-21
北京志翔科技股份有限公司
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Problems solved by technology

[0004] In order to solve the problems of long time-consuming communication process and low communication efficiency when performing half-duplex communication in the prior art, the present application discloses a half-duplex communication method, device and system through the following embodiments

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  • Half-duplex communication method, device and system
  • Half-duplex communication method, device and system

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Embodiment Construction

[0055] In order to solve the problems of long communication process and low communication efficiency in half-duplex communication in the prior art, the present application discloses a half-duplex communication method, device and system through the following embodiments.

[0056] In this application, when half-duplex communication is performed between the sending end and the receiving end, the frames used include data frames and control frames. Wherein, the data frame includes the content that needs to be sent to the receiving end in the message to be sent. After the sender obtains the message to be sent, it will split the content of the message to generate multiple data frames, and each data frame includes a data frame sequence number, and multiple data frames are based on the number included in the data frame. After the sequence numbers of the data frames are arranged and combined, the content of the message to be sent can be obtained. And, usually each data frame is the sam...

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Abstract

The embodiment of the application discloses a half duplex communication method, a device and a system. In the method, a start frame and a data frame are generated according to a message to be sent. The start frame includes a type identification of the start frame and a number of consecutive transmissions, and the data frame includes a type identification of the data frame, a data frame sequence number and data to be sent. Sending a start frame to a receiving end and sending a first data frame queue to the receiving end; receiving a response frame fed back by a receiving end, and determining atarget data frame not received by the receiving end according to the response frame. A second data frame queue including a target data frame is sent to the receiving end until it is determined that all data frames have been received by the receiving end based on the reply frame fed back by the receiving end. In the present invention, the transmitting end can transmit a plurality of data frames every time when sending data frames to the receiving end, which reduces the time for the transmitting end to wait for the reply of the receiving end, thereby reducing the time consuming of the half duplex communication process and improving the communication efficiency.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a half-duplex communication method, device and system. Background technique [0002] Generally, half-duplex communication is a "one question one answer" communication method. In this communication method, the sending end sends a data frame to the receiving end each time, and then waits for the response information from the receiving end; The end sends and receives the correct response information. If the data frame is received, but the data frame is found to be incomplete and error-free after verification, it will send an error response information to the sending end. In addition, if the receiving end does not receive the data frame , the receiving end will not send the response information to the sending end; if the sending end has not received any response information from the receiving end within the preset time period after sending the data frame, or rece...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/16
CPCH04L5/16
Inventor 张杰郑刚郑栩展
Owner 北京志翔科技股份有限公司
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