Middleware Application Function for Dynamic 5G Network Slices
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Solution Overview
Problem
Current 5G networks lack efficient mechanisms for dynamic adaptation of network slices to meet the diverse and dynamic requirements of vertical applications like V2X and Factories of the Future, leading to increased signaling overhead and complexity, and inadequate service continuity.
Innovation Solution
An entity, referred to as a middleware application function (AF), facilitates direct slice (re)-selection and adjustment by translating application requirements into network slice configurations, allowing applications to trigger these changes without increasing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current 5G network slice management mechanisms are used, then network slice provisioning and configuration can be performed, but dynamic adaptation to vertical application requirements cannot be achieved efficiently
Solution Approach 1:
The patent introduces an Application Function (AF) entity as an intermediary between vertical applications and the 5G core network. This AF entity translates application-specific requirements into network slice configurations, enabling dynamic adaptation without applications directly interacting with complex network management functions. The AF acts as a mediator that simplifies the interaction model while achieving the desired adaptability.
Solution Approach 2:
The patent enables applications to self-configure network slices by providing them with the capability to request and manage their own slice instances. The AF entity allows applications to autonomously trigger slice selection and adjustment based on their dynamic requirements, reducing the need for manual network operator intervention and complex signaling procedures.
2Reliability
If manual or centralized network slice configuration is used, then network control is maintained, but service continuity for dynamic vertical applications cannot be ensured
Solution Approach 1:
The patent transforms the static, centralized network slice configuration model into a dynamic system where slice parameters can be adjusted in real-time based on application requirements. The AF entity enables continuous monitoring and adaptation of network slice configurations, allowing service parameters to change dynamically while maintaining service continuity for vertical applications like V2X and Factories of the Future.
3Adaptability or versatility
If applications directly interact with 5G core network functions, then precise slice control can be achieved, but signaling overhead increases
Solution Approach 1:
The patent creates a universal AF entity that serves multiple vertical applications and handles diverse slice configuration requirements through a single standardized interface. This multi-functional approach allows different applications to interact with the same AF entity using common procedures, reducing the need for multiple specialized interaction channels and thereby minimizing overall signaling overhead while maintaining precise slice control.
Data Source
AI summary
The present disclosure relates to network slicing, in particular, in 5G networks systems. The disclosure is concerned with network slice enablement for (vertical) applications. Thus, an entity for inter-operation between a network system and at least one application is provided. The entity provides a request to the network system, for selection and/or adjustment of a network slice instance (NSI) providing one or more services to the at least one application. The request comprises a set of requirements for the at least one application and/or the one or more services. The set of requirements comprises a required configuration or adaption of at least one NSI related parameter. The entity further receives a response to the request from the network system. The response indicates a decision of the network system regarding the selection and/or adjustment of the NSI.