Yohannes Tolossa

Title: Yohannes Tolossa and Innovations in Emergency-Call Location Testing.

Introduction

Yohannes Tolossa is an inventor based in Gainesville, Virginia. His patent work addresses technologies for testing and updating location information associated with emergency calls over cellular and wireless networks. He is associated with Dish Wireless LLC and has 2 patents.

Latest Patents

Tolossa’s recent patent work includes a cellular field-testing tool for automating emergency-location accuracy improvements. The method detects multiple location data structures when a device under test makes an emergency call, selects one according to a policy, and compares it with the device’s location in a ground-truth database. The tool then reports whether the device passes or fails the corresponding performance test.

Another patent concerns location updates for emergency calls over a wireless local area network. During a voice-over-Internet-protocol emergency call, the system obtains location data from a PIDF-LO tag and compares it with the registered location associated with the user equipment. If the reported location is farther away than a specified threshold, the system can send the user equipment a request to update its registered location.

Career Highlights

The described inventions focus on improving the reliability of emergency-call location information. One supports systematic testing against ground-truth data, while the other provides a way to respond when a caller’s reported location differs substantially from the registered location.

Collaborations

Tolossa is associated with Dish Wireless LLC. Darci O’Hearn is identified as a coworker.

Conclusion

Yohannes Tolossa’s patent work centers on practical tools for evaluating and updating location data, helping address accuracy in emergency communications across cellular and wireless networks.