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Method and device for transmitting and receiving serial data

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 excessive IPG, so as to reduce the number, reduce the overhead, and increase the effective carrying capacity. The effect of data capabilities

Active Publication Date: 2016-06-22
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. It is a standard MAC frame format and can support the bandwidth requirements of 10GLAN / WAN. However, because it only supports the standard MAC frame format, it cannot realize multi-port or multi-service deal with
HiGig is an interface protocol developed by Broadcom. It adopts an improved MAC frame format. It supports channelization by reducing the preamble (Preamble) and frame spacing (IPG, InterframeGap) and increasing the header. However, due to IEEE802.3 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, which cuts the message into burst data (BurstData) for transmission, and separates the burst data (BurstData) by inserting the burst control word (BurstControlWord). Since the burst control word (BurstControlWord) is 64bit wide After the burst data (BurstData) has been sent to a certain amount (defined as the Burst_Max length in the protocol), or when switching between different transmission channels, at least one 64-bit wide burst control word needs to be inserted, so the overall Interlaken efficiency is not high

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  • Method and device for transmitting and receiving serial data
  • Method and device for transmitting and receiving serial data
  • Method and device for transmitting and receiving serial data

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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

The embodiment of the invention discloses a method and device for transmitting and receiving high-speed serial data. The method for receiving the serial data includes the following steps: encoding data flow to be transmitted, packaging the encoded data flow into MAC data frames, wherein the MAC data frames include identification parts and the data to be transmitted; and transmitting the encoded MAC data frames through a physical port, and forming a frame pitch behind each transmitted MAC data frame to allow the current transmitted MAC data frame and the next MAC data frame to be transmitted to set threshold positions at intervals.

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, interface protocols such as 10GXFI / SFI, Higig or Interlaken are generally used. Among them, 10GXFI / SFI is only used for single-port message transmission. It is a standard MAC frame format and can support the bandwidth requirements of 10GLAN / WAN. However, because it only supports the standard MAC frame format, it cannot realize multi-port or multi-service deal with. HiGig is an interface protocol developed by Broadcom. It adopts an improved MAC frame format. It supports channelization by reducing the pr...

Claims

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Application Information

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