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TSN message preemptive scheduling method and device

A preemptive scheduling and message technology, applied in the transmission system, electrical components, etc., can solve the problems of impossibility and poor flexibility, and achieve the effect of improving flexibility

Active Publication Date: 2020-11-20
苏州盛科科技有限公司
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  • Abstract
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Problems solved by technology

This method will cause all eMAC packets to have a higher priority than pMAC packets. If pMAC packets with priority cos=7 are required to be transmitted before eMAC packets with priority cos=1, this cannot be achieved.
[0005] That is to say, preemptive scheduling based on pMAC and eMAC only supports identifying preambles for packet preemption, which is less flexible.

Method used

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  • TSN message preemptive scheduling method and device
  • TSN message preemptive scheduling method and device
  • TSN message preemptive scheduling method and device

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Embodiment Construction

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0029] A TSN message preemptive scheduling method and device disclosed in the present invention, on the basis of the existing TSN message preemptive scheduling mechanism, combines the priority field to perform preemptive scheduling, and realizes that preemptive scheduling can be performed by identifying the preamble , and preemption scheduling can also be performed by identifying the priority field, which improves the flexibility of the packet preemption mechanism.

[0030] Such as image 3 As shown, a kind of TSN message preemptive scheduling method disclosed by the present invention comprises the following steps:

[0031] S100. Acquire the preamble of the message, and judge whether the preamble function is enabled for the preamble. If yes, proceed to the following step S200; if not...

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Abstract

The invention discloses a TSN message preemptive scheduling method and device. The method comprises the following steps: acquiring a lead code of a message, determining whether the lead code enables apreemption function; if so, determining whether the message is a pMAC message or an eMAC message according to the lead code, sending the pMAC message to a corresponding pMAC message channel, and sending the eMAC message to a corresponding eMAC message channel; and if not, further obtaining a priority field of the message, determining whether the priority field enables a preemption function, and if so, sending the message corresponding to the priority field to the eMAC message channel. According to the invention, preemption can be carried out by identifying the lead code and can also be carried out by identifying the priority field, so that the flexibility of a preemption mechanism is improved.

Description

technical field [0001] The invention relates to a preemptive scheduling mechanism for TSN messages, in particular to a preemptive scheduling method and device for TSN messages. Background technique [0002] In the IEEE802.3br standard in the TSN (Time Sensitive Networking, Time Sensitive Networking) protocol cluster, according to the preamble of the message, the message is divided into two types of MAC (Media Access Control, Media Access Control) message, one is pMAC (MAC that can be preempted), transmits preemptable traffic (traffic that can be preempted); the other is eMAC (fast MAC), transmits express traffic (fast traffic). When the pMAC has a message to transmit, the message of the eMAC can also be preempted. [0003] The difference between preemptive scheduling and the existing priority scheduling is that the former can immediately stop the transmission of low-priority packets, while the latter must wait for the current low-priority packet to be transmitted before sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L69/22H04L69/06
Inventor 胡致远龚海东杨曙军
Owner 苏州盛科科技有限公司
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