NFVO Dynamic VNF Instantiation for gNB CU-DU Split Configuration
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Solution Overview
Problem
The deployment of a virtualized part of a next-generation Node B (gNB) in wireless communication networks faces challenges in configuring Centralized Unit (CU)/Distributed Unit (DU) functional splits without software updates, requiring changes in transport network requirements and location constraints, which existing technologies struggle to manage efficiently.
Innovation Solution
The implementation of a Network Functions Virtualisation Orchestrator (NFVO) that enables onboarding and configuration of Virtualised Network Function (VNF) packages, Physical Network Function Descriptors, and Network Service Descriptors, allowing for dynamic support of multiple functional split options and updates to transport network requirements and location constraints without software updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If virtualized gNB components are deployed with fixed software, then system stability is maintained, but adaptability to different functional split options deteriorates
Solution Approach 1:
The patent implements dynamic configuration of CU/DU functional splits through the NFV orchestrator, which can dynamically instantiate and configure VNFs based on different split options without requiring software updates. This allows the system to adapt its architecture dynamically while maintaining stable software components.
Solution Approach 2:
The patent changes the parameter of functional split configuration through the NFV orchestrator, which modifies deployment parameters (such as split options, transport network requirements, and location constraints) without altering the underlying software code. This enables adaptability through parameter adjustment rather than software modification.
2Adaptability or versatility
If functional split configuration is changed without software updates, then deployment flexibility is improved, but complexity of managing transport network requirements increases
Solution Approach 1:
The NFV orchestrator serves as an intermediary between the network manager and the virtualized infrastructure, abstracting the complexity of transport network requirements and location constraints. It manages these complex parameters centrally, allowing flexible functional split configuration without exposing the complexity to other system components.
Solution Approach 2:
The system implements feedback mechanisms where the NFV orchestrator monitors transport network requirements and location constraints, automatically adjusting configurations based on current network conditions and constraints, thereby managing complexity through continuous adaptation rather than manual intervention.
3Adaptability or versatility
If multiple functional split options are supported dynamically, then network service versatility is improved, but orchestration complexity increases
Solution Approach 1:
The NFV orchestrator is designed as a universal platform that can handle multiple functional split options through a single, unified architecture. It provides multi-functionality by supporting various CU/DU split configurations, transport network requirements, and location constraints through standardized VNF packaging and deployment mechanisms, reducing orchestration complexity despite supporting diverse services.
Data Source
AI summary
Examples provide an apparatus for instantiating a virtualised part of a next generation Node B, gNB, comprising a Network Functions Virtualisation Orchestrator, operable to carry out any one or more tasks including on-boarding an VNF package, on-boarding a PNF Descriptor on-boarding a Network Service Descriptor, enabling the VNF package, enabling the Network Service Descriptor, and sending appropriate responses to a Network Manager. Examples also provide corresponding methods.