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Network slice reliability mapping algorithm based on service type

A network slicing, service type technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as inability to provide continuous services and network slicing failures

Active Publication Date: 2020-08-11
XIAN UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims at the problem that the network slicing fails to provide continuous services due to the failure of the bottom layer single link, and the purpose is to propose a network slicing reliability mapping algorithm based on business type

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  • Network slice reliability mapping algorithm based on service type
  • Network slice reliability mapping algorithm based on service type
  • Network slice reliability mapping algorithm based on service type

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Embodiment Construction

[0059] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0060] In the present invention, the underlying physical network topology graph is defined as the weighted undirected graph G of the underlying network S =(N S ,E S ), where N s and L s Represents the collection of underlying physical network nodes and links, respectively.

[0061] Similarly, a network slice request is defined as a weighted undirected graph G of network slices v =(N v ,E v ); where N v and E v represent the collection of virtual nodes and links in the slice, respectively.

[0062] weighted undirected graph G s with weighted undirected graph G v Form a network model;

[0063] Network slice mapping is to establish a mathematical model of mapping based on the virtual resources or performance requirements of the network topology, and use mathematical planning methods such as optimization to find feasible ones at the minimum cost under...

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Abstract

The invention discloses a network slice reliability mapping algorithm based on a service type, and aims to solve the problems that a plurality of network slices fail due to a single link fault in an underlying network, slice reliability is guaranteed and resource utilization rate is reduced. According to the invention, the method comprises the steps: distinguishing services carried by network slices, introducing maximum spanning tree link protection into a high-reliability low-delay slice request for backup in advance, and when a link has a fault, directly switching a slice fault link of thiskind to a backup link; for the high-bandwidth service type fault link, employing a shortest path algorithm to select a link with high reliability from surrounding proper links for remapping. Accordingto the algorithm, the corresponding recovery method is adopted by distinguishing the service types of the failure slices, so the reliability is improved, the recovery time delay is shortened, and unnecessary resource waste is reduced.

Description

technical field [0001] The invention relates to a network slice mapping algorithm, in particular to a service type-based network slice reliability mapping algorithm. Background technique [0002] With the rapid development of mobile Internet technology, the traditional mobile communication business model is constantly changing, extending from human-to-human communication to the Internet of Everything. These changes are affecting all aspects of people's lives. Emerging application scenarios such as high-definition video, intelligent security, autonomous driving, and telemedicine have opened up a new mode of life for people. However, while mobile communication brings many conveniences, it is also accompanied by higher technical requirements brought about by the explosive growth of data volume and complex and changeable business scenarios, such as high bandwidth user experience rate, high reliable service standard, million Level number of connections and millisecond level end-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/703H04L12/707H04L45/24H04L45/28
CPCH04L41/142H04L41/0893H04L41/0654H04L41/0663H04L45/22H04L45/28
Inventor 赵季红乔琳琳曲桦赵建龙张文娟
Owner XIAN UNIV OF POSTS & TELECOMM
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