Dedicated Network Nodes for MTC Device Isolation
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Solution Overview
Problem
The growing number of machine-type-communication (MTC) devices poses a challenge for 3GPP systems, as they generate low user plane traffic and can overload networks, requiring efficient connection management without impacting human-to-human communication systems, and existing specifications fail to handle devices without low access priority indications and support reselection of Mobility Management Entities (MME).
Innovation Solution
The proposal involves establishing and controlling dedicated communication networks with enhanced Node B, MME, Serving Gateway, and Packet Gateway nodes, utilizing Software Defined Networking (SDN) and Network Functions Virtualization (NFV) to create overlay networks that optimize radio access and core networks for MTC devices, allowing for separate scaling and isolation of traffic types, reducing capital expenditure and improving IoT service support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a shared core network is used to support all devices including MTC devices, then network coverage and basic connectivity are maintained, but the network becomes overloaded and performance degrades for normal user equipment
Solution Approach 1:
The patent divides the core network into shared and dedicated portions. The shared core network continues to serve normal UE and provides basic connectivity, while a dedicated core network is created specifically for MTC devices. This segmentation allows each network portion to be optimized for its specific traffic characteristics, preventing MTC device traffic from overloading the shared network and degrading performance for normal user equipment.
Solution Approach 2:
The patent introduces a dedicated core network as an intermediary layer between MTC devices and the shared core network. This dedicated network acts as a buffer and specialized handling layer that processes MTC traffic independently, preventing it from directly impacting the shared network's performance while still allowing access to core network services.
2Adaptability or versatility
If existing 3GPP specifications are used for MTC devices, then basic connectivity is provided, but devices without low access priority indication or MME reselection support cannot be properly handled
Solution Approach 1:
The patent applies local quality by creating a dedicated core network with customized features specifically tailored for MTC devices. This dedicated network can implement MTC-specific parameters such as extended access barring, optimized paging mechanisms, and specialized mobility management that are not available in the standard shared core network. Devices with specific MTC characteristics can be handled appropriately without requiring changes to the broader network infrastructure.
3Productivity
If separate dedicated core networks are deployed for different device classes, then efficient handling of specific traffic types is achieved, but network complexity and deployment cost increase
Solution Approach 1:
The patent designs the dedicated core network to be a multi-functional solution that can handle various MTC device classes and traffic types through configurable parameters and policies. Rather than creating separate networks for each device type, the dedicated core network provides universal support for MTC devices while maintaining the ability to apply different handling strategies based on device characteristics, traffic patterns, and service requirements.
Data Source
AI summary
Briefly, in accordance with one or more embodiments, methods to establish and control communication of a dedicated device such as a dedicated user equipment (UE) with dedicated nodes of a network are provided.