SD-WAN-Orchestrated Private Mobile Network for Resilient Failover
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Solution Overview
Problem
Current private mobile networks based on cellular technology have not been seamlessly integrated into enterprise cloud-native technologies like SD-WAN, Edge compute, and Secure Services Edge, and lack global management and resiliency, failing to meet specific requirements around coverage, reliability, and latency.
Innovation Solution
Implementing a software-defined private mobile network (SD-PMN) with control plane components deployed at physical locations and SD-WAN PoPs, utilizing IPsec tunnels, DMPO tunnels, and a centralized management system to provide seamless failover and resiliency, and integrating with SD-WAN for global management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If private mobile network is integrated with SD-WAN and cloud-native technologies, then system resiliency and global management are improved, but device complexity and integration difficulty increase
Solution Approach 1:
The patent segments the private mobile network into distributed network elements (access points, edge routers, gateways) that can be independently deployed and managed at different locations, while being orchestrated through a centralized system. This segmentation enables resiliency through distribution while managing complexity through modular architecture.
Solution Approach 2:
The patent introduces an SD-WAN orchestrator as an intermediary that manages and coordinates the distributed network elements. This intermediary handles the complexity of integration by providing a unified control plane that simplifies global management and resiliency coordination across the distributed infrastructure.
2Area of stationary object
If control plane components are deployed at multiple physical locations and SD-WAN PoPs, then network coverage and accessibility are improved, but management complexity and coordination difficulty increase
Solution Approach 1:
The patent implements a universal SD-WAN orchestrator that can manage multiple distributed control plane components across different physical locations and SD-WAN PoPs through a single interface. This multi-functional system provides global management capabilities that simplify coordination while maintaining extensive network coverage.
Solution Approach 2:
The patent adds a centralized orchestration dimension above the distributed network elements. This extra layer of management operates in a different dimensional space (centralized vs. distributed), allowing simplified global coordination of the complex multi-location infrastructure through virtualized management functions.
3Reliability
If SD-WAN edge routers establish connections to multiple SD-WAN gateways, then system resiliency and failover capability are improved, but connection complexity and routing overhead increase
Solution Approach 1:
The patent establishes preliminary connections between SD-WAN edge routers and multiple SD-WAN gateways before failover is needed. These pre-configured connections include backup paths that are ready for immediate activation, enabling rapid failover without the complexity of dynamic route discovery during failure events.
Solution Approach 2:
The patent implements dynamic connection management where SD-WAN edge routers can adaptively switch between primary and secondary gateways based on network conditions and failure states. This dynamic behavior provides resiliency while the SD-WAN orchestrator manages the complexity of connection state transitions and routing updates.
Data Source
AI summary
Some embodiments provide a method for implementing a software-defined private mobile network (SD-PMN) for an entity. At a physical location of the entity, the method deploys a first set of control plane components for the SD-PMN, the first set of control plane components including a security gateway, a user-plane function (UPF), an AMF (access and mobility management function), and an SMF (session management function). At an SD-WAN (software-defined wide area network) PoP (point of presence) belonging to a provider of the SD-PMN, the method deploys a second set of control plane components for the SD-PMN that includes a subscriber database that stores data associated with users of the SD-PMN. The method uses an SD-WAN edge router located at the physical location of the entity and a SD-WAN gateway located at the SD-WAN PoP to establish a connection from the physical location of the entity to the SD-WAN PoP.