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Data retransmission method based on XAUI interface bus

An interface bus and data retransmission technology, applied in the field of XAUI communication, can solve problems such as loss, data packet error, data bit error, etc., and achieve the effect of retransmission of wrong data

Pending Publication Date: 2020-09-08
BEIJING INST OF COMP TECH & APPL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to solve the problem of data packet error or loss caused by data bit error or loss in the process of XAUI data transmission

Method used

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  • Data retransmission method based on XAUI interface bus
  • Data retransmission method based on XAUI interface bus
  • Data retransmission method based on XAUI interface bus

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Embodiment Construction

[0031] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Such as figure 1 As shown, the present invention provides a data retransmission method based on the XAUI interface bus. When the data transmission is wrong, the sender resends, so that the real data is received correctly, and the wrong data retransmission of the XAUI bus is realized.

[0033] The present invention improves the commonly used XAUI communication mode, such as figure 1 , image 3 As shown, 2 GPIOs are added at the receiving end, respectively indicating that the data packet is correct (ack) and data packet error (err). At the end of the data, it is sent to the receiving end together with the data packet. After the sending is completed, the next packet of data is not processed, but waits for the rec...

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Abstract

The invention relates to a data retransmission method based on an XAUI interface bus, and relates to the technical field of XAUI communication. According to the invention, a common XAUI communicationmode is simply improved, when the data transmission is wrong, a sender resends the data, so that the real data is correctly received, the wrong data retransmission of the XAUI bus is realized, and theproblem of data packet errors or loss caused by data bit errors or loss in the XAUI data transmission process is solved.

Description

technical field [0001] The invention relates to the technical field of XAUI communication, in particular to a data retransmission method based on an XAUI interface bus. Background technique [0002] XAUI is a 10 Gigabit Ethernet communication interface, which is mainly used for communication between processor chips. That is, the correctness of the data cannot be fully guaranteed. [0003] The commonly used XAUI communication method is generally that the sending chip sends data to the high-speed transceiver (SERDES) of the chip through the XGMII interface. SERDES encodes the data and converts it into a differential serial signal, and the SERDES of the receiving chip receives the differential signal. Decode and convert it into a parallel signal and send it to the application layer. In this way, if a data bit is wrong or lost during sending and receiving, the entire data packet will be wrong or lost, which is not suitable for occasions that have high requirements for data acc...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/00H04L1/18H04L12/40
CPCH04L1/1607H04L1/0061H04L12/40H04L12/40169H04L1/18
Inventor 龚清生王吕大赵明亮沈月峰孙大东杨帆王晓光陕振
Owner BEIJING INST OF COMP TECH & APPL
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