Dynamic Data Path Selection for NB-IoT Devices
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Solution Overview
Problem
Current telecommunications systems face challenges in optimizing network infrastructure to provide high-quality services to both traditional mobile devices and Narrow Band Internet of Things (NB-IoT) devices, particularly in dynamically selecting and managing data paths based on device location and usage patterns.
Innovation Solution
The method involves a Mobility Management Entity (MME) server that detects NB-IoT device requests, authenticates them, and dynamically selects Service Capability Exposure Function (SCEF) nodes and Cellular IoT Serving Gateway Nodes (CSGN) based on device location and data volume, using DNS status information to optimize data paths and switch between them as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network infrastructure is optimized for NB-IoT devices with dedicated data paths, then service quality for NB-IoT devices is improved, but network complexity and resource allocation difficulty increase
Solution Approach 1:
The patent implements dynamic data path selection that adapts to changing network conditions and device states. The MME server continuously monitors device location, data volume, and network status, then dynamically switches between different data path modes (direct path, indirect path, split path) to optimize service quality while managing network complexity through automated adaptation rather than static complex configuration
Solution Approach 2:
The patent segments the data path into multiple selectable routes (direct path through SCEF, indirect path through CSGN, split path combining both). This segmentation allows the system to choose the most appropriate path based on current conditions, improving service quality for NB-IoT devices without requiring the entire network to be reconfigured, thus managing complexity through modular path selection
2Productivity
If dynamic data path selection is implemented for NB-IoT devices, then data transfer efficiency is improved, but control and management complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where the MME server automatically monitors device status, evaluates data path performance, and switches between paths without manual intervention. The system uses automated decision-making based on pre-defined criteria (device location, data volume thresholds, network conditions) to maintain high data transfer efficiency while reducing control complexity through self-management
Solution Approach 2:
The patent incorporates feedback mechanisms where the MME server continuously monitors data transfer performance, device location changes, and network status. Based on this feedback, the system automatically adjusts data path selection to optimize transfer efficiency. The feedback loop enables adaptive optimization without requiring complex manual control, as the system learns and responds to changing conditions automatically
3Adaptability or versatility
If multiple data path options are maintained for NB-IoT devices, then service adaptability is improved, but resource allocation complexity increases
Solution Approach 1:
The patent implements multi-functionality by designing the MME server to handle multiple data path modes (direct, indirect, split) through a unified control mechanism. The same MME server performs authentication, path selection, and dynamic switching for all NB-IoT devices, regardless of which path mode they use. This universal approach improves service adaptability across different device scenarios while reducing resource allocation complexity by consolidating control functions in a single entity rather than requiring separate management systems for each path type
Data Source
AI summary
Aspects of the subject disclosure may include, for example, querying a domain name server for status information associated with a set of service capability exposure function (SCEF) nodes associated with providing data capability for a wireless communication device in a mobile communication network, receiving, from the domain name server, status information associated with a set of SCEF nodes that are selected, selecting a first SCEF node from the set of SCEF nodes according to the status information for the set of SCEF nodes, initiating a first non-IP packet data network connection with the first SCEF node, initiating a user plane packet data network connection with a serving gateway node of the mobile communication network, wherein the serving gateway node includes a serving gateway and a packet data network gateway, and selecting the first non-IP packet data network connection or the user plane packet data network connection as a delivery path.