Phone Scoop

printed November 25, 2015
See this page online at:

Home  ›  Glossary  ›


Uplink Time Difference of Arrival

U-TDOA is a position-location technology for mobile phone networks. It uses advanced triangulation techniques to determine the precise location of a mobile phone.

Unlike competing E-OTD technology, U-TDOA works with any mobile phone; it does not require special hardware or software in the phone.

U-TDOA has been widely embraced by major U.S. GSM carriers to meet the government's E-911 requirements.

Still confused? Spot a mistake? Give us your feedback on this definition.

back to Glossary Index

Subscribe to Phone Scoop News with RSS Follow @phonescoop on Twitter Phone Scoop on Facebook Subscribe to Phone Scoop on YouTube Follow on Instagram


All content Copyright 2001-2015 Phone Factor, LLC. All Rights Reserved.
Content on this site may not be copied or republished without formal permission.