Prediction-based virtual network function scheduling method for 5G network slices

A virtual network function and network slicing technology, which is applied in the field of virtual network function scheduling and can solve problems such as few virtual network function scheduling.

Active Publication Date: 2018-12-07
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Existing inventions have proved that neural network technology can well predict the relationship between resource characteristics and resourc...

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  • Prediction-based virtual network function scheduling method for 5G network slices
  • Prediction-based virtual network function scheduling method for 5G network slices
  • Prediction-based virtual network function scheduling method for 5G network slices

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Embodiment Construction

[0079] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0080] figure 1 It is a schematic diagram of a scene example where the embodiment of the present invention can be applied. Such as figure 1 As shown, different types of slices represent different service types, and from left to right are unlimited virtual network users, virtual network management platform, virtual network function scheduling layer, and physical resource pool. In this system, the cloud servers in the physical resource pool provide various types of physical network resources including computing resources, cache resources, link bandwidth resources, etc., and the virtual network management platform realizes the network according to the business status and QoS requirements of virtual network users. Scheduling of virtual network function modules and flexible allocation of physical network resources. In order to allocate physic...

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Abstract

The invention relates to a prediction-based virtual network function scheduling method for 5G network slices, and belongs to the field of mobile communication. The method specifically comprises: establishing a delay-based service function chain queue model for service function chain features having dynamically changing service traffic; establishing a multi-queue cache model, and determining, at different time, priorities requested by the slices and a lowest service rate that should be provided, according to the size of a slice service queue; discretizing the time into a series of consecutive time windows, and establishing a prediction-based traffic perception model by using the queue information in the time windows as a training data set sample; and searching a scheduling method for the best service function chain VNF under the resource constraint that the caching of the slice service queue does not overflow according to the predicted size of each slice service queue and the corresponding lowest service rate. The method realizes on-line mapping of network slices, reduces the overall average scheduling delay of multiple network slices, and improves the performance of network services.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a prediction-based virtual network function scheduling method for 5G network slicing. Background technique [0002] Network Function Virtualization (Network Function Virtualization, NFV) is based on general-purpose server hardware and provides various network functions in the form of software, which provides great support for operators' future flexible deployment of network services and rapid adjustment of network structure , especially the related service function chaining (Service Function Chaining, SFC) technology, which is different from the traditional network function implementation, creates more flexible and dynamic network services to meet more diverse needs. The service function chain is an ordered collection of virtual network functions (Virtual Network Function, VNF). The business traffic passes through multiple VNFs in sequence according to the specified po...

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Application Information

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IPC IPC(8): H04L12/24
CPCH04L41/0823H04L41/12H04L41/145H04L41/147
Inventor 唐伦周钰马润琳肖娇赵国繁陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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