Wireless Device Network Switching via Application Server Indicators
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Solution Overview
Problem
Wireless devices often need to switch between different carrier networks due to unavailability or overload of their primary network, but existing systems lack efficient mechanisms for the device to autonomously disconnect from a low-priority network and reconnect to a high-priority network without permission from the low-priority network.
Innovation Solution
A wireless device measures signal strength and load indicators of a high-priority network while connected to a low-priority network, using client software to communicate with an application server at the application protocol layer to determine when to disconnect from the low-priority network and reconnect to the high-priority network, allowing seamless switching without permission from the low-priority network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the wireless device autonomously disconnects from the low-priority network without permission, then the switching speed and service quality improve, but the network control and coordination deteriorate
Solution Approach 1:
The system performs preliminary actions by having the wireless device measure signal strength and load indicators of the high-priority network while still connected to the low-priority network. The application server prepares availability indicators in advance, allowing the device to make informed switching decisions without abrupt disconnections, thus maintaining control while enabling fast switching.
Solution Approach 2:
The system implements feedback mechanisms where the application server provides availability indicators to the wireless device based on network load and signal strength measurements. This feedback loop allows the device to autonomously decide when to switch networks while the server maintains overall network coordination and control.
2Extent of automation
If the wireless device uses client software to communicate with the application server at the application protocol layer, then the switching autonomy improves, but the device complexity increases
Solution Approach 1:
The client software implemented in the wireless device serves multiple functions: it measures signal strength, communicates with the application server, receives availability indicators, and autonomously decides when to switch networks. By consolidating these functions into a single multi-functional client software module, the system achieves high automation without proportionally increasing complexity.
Solution Approach 2:
The wireless device's client software autonomously monitors network conditions, communicates with the application server, and makes switching decisions without requiring manual intervention or complex external control systems. The device serves itself by automatically managing its own network connections based on received availability indicators.
3Measurement precision
If the wireless device continuously monitors signal strength and load indicators, then the network selection accuracy improves, but the energy consumption increases
Solution Approach 1:
Instead of continuous monitoring, the system uses periodic measurements where the wireless device checks signal strength and load indicators at intervals. The application server periodically provides availability indicators, allowing accurate network selection while reducing energy consumption compared to continuous monitoring.
Data Source
AI summary
An application processing element in a first wireless communication network receives a first indicator associated with an availability of a first access node in the first wireless communication network to serve a wireless device. The wireless device being served by a first active connection with a second wireless communication network. In response to a first request by the wireless device, the application processing element sends a second indicator to the wireless device. The second indicator is associated with the availability of the first access node in the first wireless communication network to serve the wireless device. The wireless device ending the first active connection based on the first indicator and the signal strength associated with the first access node.