Voice Call Continuity Server Dropped Call Notification
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Solution Overview
Problem
Network service providers face challenges in obtaining real-time information about network availability and dead spots as mobile devices switch between IP and circuit switch networks, limiting their ability to control and optimize network operations effectively.
Innovation Solution
A method where a Voice Call Continuity application server receives indications of dropped calls from mobile devices and transmits relevant information, including location data, to a monitoring system, enabling seamless handoffs between networks and providing real-time network availability information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mobile devices automatically switch between IP and circuit switch networks, then call continuity is maintained, but real-time network availability information is not provided to service providers
Solution Approach 1:
The patent implements a feedback mechanism where the VCC application server sends domain availability notifications to the monitoring system based on received radio condition notifications. When a mobile device reports radio conditions indicating potential network issues, the VCC server translates this into domain availability information and notifies the monitoring system, creating a feedback loop that provides real-time network availability data without disrupting call continuity.
Solution Approach 2:
The VCC application server acts as an intermediary between mobile devices and the monitoring system. Instead of mobile devices directly reporting to the monitoring system or service providers manually collecting data, the VCC server receives radio condition notifications from devices, processes this information, and generates domain availability notifications for the monitoring system, thereby bridging the information gap.
2Loss of information
If manual monitoring of network conditions is performed, then network availability information can be obtained, but real-time data is not available and network optimization is delayed
Solution Approach 1:
The system performs preliminary action by proactively monitoring radio conditions and generating domain availability notifications before network issues significantly impact service quality. The VCC application server continuously receives radio condition notifications from mobile devices and immediately processes them into domain availability information, enabling the monitoring system to detect and respond to network problems in real-time rather than through delayed manual monitoring.
Solution Approach 2:
The patent establishes continuous monitoring and notification processes where the VCC application server continuously receives radio condition notifications from mobile devices and continuously generates domain availability notifications for the monitoring system. This uninterrupted flow of information ensures real-time network availability data is always available, eliminating the time loss associated with periodic manual monitoring.
3Measurement precision
If detailed radio condition data is collected from mobile devices, then network dead spots can be identified, but system complexity increases
Solution Approach 1:
The patent extracts only the essential information needed for domain availability determination from the detailed radio condition data collected from mobile devices. Instead of processing and storing all raw radio condition parameters, the VCC application server extracts relevant indicators that signal domain availability changes, filtering out unnecessary data and reducing system complexity while maintaining measurement precision for identifying network dead spots.
Solution Approach 2:
The system transforms detailed radio condition parameters into simplified domain availability indicators. The VCC application server changes the parameter representation from complex raw radio measurements to standardized domain availability notifications that convey the same diagnostic information in a more manageable format, reducing processing complexity while preserving the ability to identify network coverage issues.
Data Source
AI summary
A method for providing IP network information to a network service provider receives at a voice call continuity application server an indication that a call to a mobile device has been dropped by the IP network and transmits information relating to the dropped call from the voice call continuity application server to a monitoring system of the network service provider.