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Reliable construction and deployment method of service function chain in network slice scene

A service function chain and network slicing technology, which is applied in the field of reliable construction and deployment of service function chains in network slicing scenarios, can solve problems such as end-to-end delay constraints, unreliable SFC reliability research, and single service requests, etc., to achieve The effect of reducing network resource consumption and reducing overall service cost

Pending Publication Date: 2022-07-15
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] In the prior art, in the research on the construction of SFC, only the scenario of a single service request was discussed, and the overall consideration and optimization of multiple SFCs were not considered.
In the research of SFC mapping, the mapping of SFC is completed by minimizing cost and resource consumption, but the end-to-end delay constraint is not considered, and the reliability of SFC is not studied during the mapping process

Method used

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  • Reliable construction and deployment method of service function chain in network slice scene
  • Reliable construction and deployment method of service function chain in network slice scene
  • Reliable construction and deployment method of service function chain in network slice scene

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Embodiment Construction

[0034] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic idea of ​​the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0035] Among them, the accompanying drawings are only used for exemplary description, and represent only schematic diagrams, not physical drawings, and should not be ...

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Abstract

The invention relates to a reliable construction and deployment method for a service function chain in a network slice scene, and belongs to the technical field of mobile communication. The method comprises the following steps: in a network slice scene, reliably constructing a service function chain (SFC) under a plurality of service requests, constructing a service function diagram (SFG) by adopting an SFC reliable construction algorithm based on a shared virtual network function (VNF) through a dependency relationship of the VNF and a sharable number of times, selecting the SFG with the highest reliability, and completing SFC construction of the plurality of network slice service requests; reliable mapping is carried out on the SFG on the basis of the construction result of the SFG, mapping and backup are carried out on the VNF in the SFG to meet the reliability requirement of a user by adopting a reliable SFG mapping algorithm based on delay perception, and an optimal solution of a mapping scheme is found in polynomial time by using a heuristic algorithm based on node importance. According to the method, the SFC reliability in the network can be ensured, and the network resource consumption and the overall service cost are effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a reliable construction and deployment method of a service function chain in a network slicing scenario. Background technique [0002] Network Function Virtualization (NFV) and Software-Defined Networking (SDN) technologies can run on data center servers located at the edge or core of the network, and are of great significance in the evolution of future networks. In 5G and 6G networks, NFV and SDN can flexibly deploy networks, share resources, and meet the diverse needs of vertical industries, thereby promoting the application and development of network slicing technology. In an actual network, the normal operation of network customization services is closely related to the reliability of network slicing requests. Therefore, in order to improve the reliability of 5G network slicing requests, attention should be paid to the construction and backup of SFCs. [0003] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L41/082H04L41/0823H04L41/0895
CPCH04L41/0836H04L41/082
Inventor 唐伦王恺周鑫隆张月陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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