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Resource Allocation Methods in Time Sensitive Networks

A time-sensitive, resource allocation technology, applied in transmission systems, electrical components, etc., can solve problems such as inability to obtain real-time guarantees, decreased network stability, and difficulty in guaranteeing network service quality, to minimize jitter, reduce delay, The effect of reducing the delay

Active Publication Date: 2022-03-25
YANSHAN UNIV
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Problems solved by technology

AVB traffic that is also important in industrial sites, such as key data for image recognition, cannot be guaranteed in real time
Moreover, the method of single-path traffic transmission makes too much traffic aggregated on one path, which will lead to a decrease in network stability and difficulty in guaranteeing network service quality, thus reflecting the importance of dynamic allocation of multi-path resources

Method used

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  • Resource Allocation Methods in Time Sensitive Networks
  • Resource Allocation Methods in Time Sensitive Networks
  • Resource Allocation Methods in Time Sensitive Networks

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Embodiment Construction

[0044] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments:

[0045] The invention discloses a resource allocation method in a time-sensitive network, and the main purpose is to minimize the jitter of AVB traffic on the premise of ensuring the delay of TT traffic, ensure the transmission effect of audio and video, and reduce the delay of AVB traffic to a certain extent. When the multi-path dynamic distribution problem of mixed traffic at the source node is solved. like figure 1 As shown, it is a flow chart of the resource allocation method in the present invention, which can be applied to figure 2 In the shown resource allocation model with r paths, the steps included in the method will be described in detail below.

[0046] Step 1, the network topology is modeled as a directed graph G(V,E). Among them, V≡(ES∪SW) represents the set of nodes in the topology, including the end system ES and switch SW...

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Abstract

The present invention relates to a resource allocation method in a time-sensitive network, which includes: 1. modeling the network topology as a directed graph G(V, E); 2. eliminating incompatible routes; 3. detecting traffic forwarding of each node on each path Speed; 4. Formulate the objective function and output function. The objective function is to minimize the jitter of AVB traffic, and the output function is the number of traffic allocated for each path; 5. Formulate constraints according to the objective function in step 4; 6. Find the most hops , and remove this path from the feasible solution, and there are p-1 paths remaining at this time; 7. Record the solution generated by each round of calculation in the dynamic change as the sample space. On the premise of ensuring the delay of TT traffic, the present invention minimizes the jitter of AVB traffic, ensures the transmission effect of audio and video, reduces the delay of AVB traffic to a certain extent, and solves the problem of multi-path dynamic distribution of mixed traffic at source nodes .

Description

technical field [0001] The invention relates to a resource allocation method in a time-sensitive network, and belongs to the technical field of the time-sensitive network technology of the Industrial Internet of Things. Background technique [0002] The emergence of network collaboration technologies has opened up new manufacturing scenarios that integrate modern technologies to increase production efficiency, improve product quality, and reduce resource consumption. The Industrial Internet of Things is a specific implementation of network collaboration technology. It monitors equipment status and field conditions in real time through various high-precision sensors, and finally realizes intelligence in traditional industries. In this context, with the increasing transmission requirements of time-sensitive traffic (TT traffic) and audio and video traffic (AVB traffic) in industrial sites, the IEEE802.1 Time-Sensitive Networking (TSN) task group has developed a time-sensitive ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L47/2416H04L47/2425H04L47/2408H04L47/80
CPCH04L47/2416H04L47/2433H04L47/2408H04L47/801H04L47/805
Inventor 袁亚洲曹旭孙富韬陈彩莲关新平杨博
Owner YANSHAN UNIV
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