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Serial data sending and receiving method and device

A data transmission method and data frame technology, applied in the field of data transmission, can solve the problems of low overall efficiency of Interlaken, inability to realize multi-port or multi-service processing, and excessively large IPG, so as to reduce the number, reduce the overhead, and increase the effective carrying capacity. The effect of data capabilities

Active Publication Date: 2020-01-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, 10GXFI / SFI is only used for single-port message transmission, which is a standard MAC frame format, which can support the bandwidth requirements of 10G LAN / WAN, but because it only supports standard MAC frame format, it cannot realize multi-port or multi-service processing
HiGig is an interface protocol developed by Broadcom. It adopts an improved MAC frame format. It supports channelization by reducing the preamble (Preamble) and interframe gap (IPG, Interframe Gap) and increasing the header. However, due to IEEE 802.3 The protocol requires a minimum IPG of 8 bytes, so there is an IPG that is too large, resulting in a waste of bandwidth
Interlaken supports channelization, cuts the message into burst data (Burst Data) for transmission, and separates the burst data (Burst Data) by inserting the Burst Control Word (Burst Control Word), because the Burst Control Word (Burst Control Word) The sum is 64bit wide data. After the burst data (Burst Data) is sent to a certain amount (defined as the Burst_Max length in the protocol), or when switching between different transmission channels, at least one 64bit wide burst control needs to be inserted. word, so the overall efficiency of Interlaken is not high

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  • Serial data sending and receiving method and device
  • Serial data sending and receiving method and device
  • Serial data sending and receiving method and device

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Embodiment Construction

[0052] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0053] figure 2 It is a flow chart of the serial data sending method of the embodiment of the present invention, such as figure 2 As shown, the serial data sending method in the embodiment of the present invention includes the following steps:

[0054] Step 201, encode the data stream to be sent and encapsulate it into a media access control MAC data frame.

[0055] In the embodiment of the present invention, the existing MAC data frame needs to be modified so that it only carries a small amount of control information, so that the MAC data frame carries more valid data. ...

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Abstract

Disclosed are a high-speed serial data sending and receiving methods and apparatuses, and a storage medium. The serial data receiving method comprises: coding a to-be-sent data flow and encapsulating the coded data flow into MAC data frames, wherein each MAC data frame comprises a start identifier portion and a to-be-sent data portion; and sending the coded MAC data frames through a physical port, and forming a frame pitch after each sent MAC data frame, so that the currently sent MAC data frame and a next to-be-sent MAC data frame are separated by set threshold bits.

Description

technical field [0001] The invention relates to a data transmission technology of a high-speed serial interconnection interface between chips, in particular to a serial data sending method and device, and a serial data receiving method and device. Background technique [0002] In data communication, it is necessary to realize the interconnection between chips through high-speed serial interface, such as figure 1 As shown; for data packet interconnection interfaces above 10G, 10G XFI / SFI, Higig or Interlaken and other interface protocols are generally used. Among them, 10GXFI / SFI is only used for single-port message transmission, which is a standard MAC frame format, which can support the bandwidth requirements of 10G LAN / WAN, but because it only supports standard MAC frame format, it cannot realize multi-port or multi-service processing. HiGig is an interface protocol developed by Broadcom. It adopts an improved MAC frame format. It supports channelization by reducing the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/42
CPCG06F13/385
Inventor 谢小龙杨敏华宋军辉刘明强
Owner ZTE CORP