Nested VIM Instantiation for Rapid Network Service Deployment
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Solution Overview
Problem
The establishment of network services using Virtual Network Functions (VNFs) in a visited network is complex and delayed due to compatibility issues between different cloud technologies and the need for extensive coordination and data transfer between home and visited networks.
Innovation Solution
The home network requests the visited network to instantiate a nested Virtualized Infrastructure Manager (VIM) and VNF package that have been onboarded and pre-selected based on nesting capabilities, allowing for rapid instantiation of network services by having the necessary resources and software already in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network services are established using VNFs in a visited network with extensive coordination and data transfer between home and visited networks, then service compatibility and reliability are improved, but service establishment time and complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-onboarding VNF packages and cloud native micro services in the visited network before actual service deployment. The home network system sends service requests that trigger instantiation of pre-prepared VNFs and micro services, eliminating the need for extensive real-time coordination and data transfer during service establishment. This advance preparation significantly reduces service establishment time while maintaining compatibility through pre-validated service packages.
Solution Approach 2:
The patent introduces an intermediary mechanism through the use of standardized service requests and response messages that facilitate communication between home and visited networks. The service request message format and processing protocol act as an intermediary layer that enables efficient coordination without requiring extensive bilateral negotiation, thus reducing establishment time while ensuring reliable service compatibility through standardized interfaces.
2Reliability
If extensive coordination and data transfer are performed between home and visited networks for VNF instantiation, then service reliability is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent reduces coordination complexity by introducing standardized service request and response message formats that act as intermediaries between home and visited networks. These standardized protocols simplify the interaction mechanisms, replacing complex bilateral negotiation with structured, pre-defined communication patterns. The service request message includes essential parameters that trigger automated instantiation processes, reducing the need for extensive coordination while maintaining establishment reliability through standardized validation and processing procedures.
3Adaptability or versatility
If VNFs are instantiated without pre-onboarding and pre-selection, then adaptability to different cloud technologies is improved, but service establishment speed decreases
Solution Approach 1:
The patent applies preliminary action by pre-onboarding multiple VNF packages and cloud native micro services in the visited network with support for nested virtualization. The home network system maintains a repository of pre-validated service packages compatible with different cloud technologies. When a service request is received, the system instantly instantiates pre-prepared VNFs and micro services from the repository, eliminating the need for time-consuming onboarding processes while maintaining adaptability through diverse pre-configured service packages supporting various cloud platforms.
Data Source
AI summary
Methods and network systems for enabling a network service for a client belonging to a home network (200) by using at least one Virtual Network Function, VNF (202D) of a Virtualized Infrastructure (202C) in a visited network (202). When requested by the home network, the visited network instantiates (2:10), a nested Virtualized Infrastructure Manager, VIM, (202E) which previously has been onboarded in the visited network and has been selected from a set of predefined VIMs supported by the home network. The visited network also instantiates (2:10) in the nested VIM a VNF package which has been onboarded in the visited network and having software needed to execute the network service. The network service can then be employed using the instantiated VIM and VNF package.