Dynamic Wi-Fi LTE Interface Selection via Network Monitoring
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Solution Overview
Problem
Mobile devices typically prefer Wi-Fi over cellular connections for data transmission, ignoring connection quality and network loading, leading to inefficient data routing.
Innovation Solution
A method and apparatus that monitor control messages between a mobile device and a network core to determine device presence and update connectivity information, allowing a hub device to dynamically select between Wi-Fi and LTE connections based on network utilization and link quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mobile devices always prefer Wi-Fi over cellular connections, then device simplicity and ease of operation are improved, but network efficiency and data routing optimization deteriorate
Solution Approach 1:
The system implements feedback mechanisms by monitoring control messages between mobile devices and network core control functions. The network infrastructure continuously gathers information about device presence, connectivity status, and network conditions, then uses this feedback to dynamically optimize data routing decisions between Wi-Fi and cellular networks, resolving the contradiction between simple device operation and network efficiency
Solution Approach 2:
The patent introduces an intermediary layer in the network infrastructure that acts as a mediator between mobile devices and the core network. This intermediary monitors device presence and connectivity information, making intelligent routing decisions without requiring complex device-side logic, thus maintaining ease of operation while improving network efficiency through centralized optimization
2Use of energy by moving object
If devices use only one wireless technology at a time, then power consumption is reduced, but connection quality and network adaptability deteriorate
Solution Approach 1:
The system enables dynamic connectivity management where mobile devices can transition between Wi-Fi and cellular networks based on real-time network conditions and service requirements. The network infrastructure monitors device presence and connectivity status, dynamically adjusting routing decisions to optimize connection quality while managing power consumption through intelligent, condition-based interface selection rather than static single-technology usage
3Measurement precision
If the network monitors control messages to determine device presence, then routing accuracy and network performance are improved, but system complexity and information processing requirements increase
Solution Approach 1:
The system implements self-service mechanisms where the network infrastructure automatically monitors control messages and determines device presence without requiring additional complex device-side functionality. Mobile devices continue their normal operations while the network autonomously gathers presence information from existing control messages, improving measurement precision without significantly increasing overall system complexity
Solution Approach 2:
The patent leverages existing control messages used for other network functions to simultaneously determine device presence and connectivity status. By making multi-use of these control messages for multiple purposes (device identification, presence detection, connectivity assessment), the system improves measurement precision without adding separate monitoring mechanisms that would increase system complexity
Data Source
AI summary
A wireless router having a WiFi wireless network and including a small cell for routing LTE cellular data to a mobile network core is configured to monitor connected mobile devices and determine whether each mobile device should be connect to the hub using WiFi or LTE in accordance with the current utilization of the WiFi network and the current utilization of the LTE small cell. Since the small cell data traffic transmitted in a data tunnel to the mobile network core is accessible to the monitor, the network identity information of the device's WiFi interface and the device's LTE interface can be determined by consulting an address mapping store in the cellular mobile network core. Furthermore presence information can be determined by detecting connection and disconnection messages between the mobile device and cellular network core.