Emergency Call Network Test System Using Emulated Location Data
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Solution Overview
Problem
Current test procedures for emergency call networks require physical travel to various locations for testing call routing, which is costly and inefficient.
Innovation Solution
A test procedure and system that establishes a test user connection and emergency operator connection via an integrated test environment, allowing for emulated location data to simulate target locations, enabling end-to-end call connections without physical presence, using VoLTE standard connections and S1 standard interfaces for efficient testing of call routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical travel to different locations is performed for testing call routing, then location accuracy and call routing verification are improved, but test costs and time consumption increase
Solution Approach 1:
The patent creates a virtual copy of the physical testing environment by emulating location data (cell IDs, location area codes) in a test system. This allows multiple test locations to be simulated simultaneously without physical travel, maintaining location accuracy for call routing verification while eliminating the time and cost of physical movement between locations.
Solution Approach 2:
The patent changes the testing parameters from physical location coordinates to emulated network parameters (cell IDs, location area codes). By manipulating these network parameters in the test system, the same physical test setup can verify call routing for multiple virtual locations, achieving both accuracy and efficiency.
2Reliability
If physical travel to different locations is performed for testing call routing, then call routing verification is improved, but test expenses increase
Solution Approach 1:
The patent creates a virtual copy of the physical testing environment by emulating location data (cell IDs, location area codes) in a test system. This allows multiple test locations to be simulated simultaneously without physical travel, maintaining location accuracy for call routing verification while eliminating the time and cost of physical movement between locations.
Solution Approach 2:
The test system is designed to perform multiple testing functions from a single physical location. The same test setup can verify call routing for multiple emulated locations, test different network scenarios, and conduct various types of testing (call routing, audio quality, network performance) without requiring separate physical travel for each test scenario.
3Adaptability or versatility
If multiple test calls are performed from different physical locations, then call routing testing comprehensiveness is improved, but device complexity and setup requirements increase
Solution Approach 1:
The patent creates a virtual copy of the physical testing environment by emulating location data (cell IDs, location area codes) in a test system. This allows multiple test locations to be simulated simultaneously without physical travel, maintaining location accuracy for call routing verification while eliminating the time and cost of physical movement between locations.
Solution Approach 2:
The patent introduces an intermediary test system that sits between the test user and the emergency call network. This intermediary emulates network elements (MSC, HLR, VLR) and location data, allowing the test system to control and verify call routing without requiring complex physical deployments at multiple locations. The intermediary manages the complexity of network simulation while providing comprehensive testing capability.
Data Source
AI summary
A test procedure for an emergency call network includes the following steps: A test user connection is provided between a test user and a test site and an integrated test environment. Location data are assigned to a target location of the test user, wherein such target location is to be emulated by the integrated test environment. An emergency operator connection is provided between the integrated test environment and an emergency operator in an emergency call center of the emergency call network using the assigned location data. The test user connection and the emergency operator connection are synchronized to establish an end-to-end call connection between the test user and the emergency operator. By using these steps, the expenses for performing a test procedure for an emergency call network are lowered. A test system also is presented for performing such test procedure.