AOA
Angle of Arrival

AOA measurements are used to determine the direction from which a received radio signal originally emanated. Individual elements of an antenna array will utilize TDOA (Time Difference On Arrival) measurements, from which the AOA can then be calculated. In mobile networks, AOA measurements taken at several cell sites can be used together in order to identify the location of a subscriber. This technique is particularly useful for meeting the location accuracy requirements associated with E911 services but does require the subscriber to be in Line of Sight to the cell sites.

If you enjoy using our glossary, here are some other useful resources you might like...

Get your weekly dose of telecoms terminology delivered straight to your inbox!

We promise, no spam - just clear-cut telecoms terms to keep you on top of your game.

Our YouTube channel offers over a hundred free videos (and counting!) covering a range of technology topics.

Subscribe to our channel to be the first to know when we release new videos:

FREE Intro to 5G Sample Course

Use this no-obligation free trial to get a taste of what it's like to be an Mpirical student.

Included with the trial is an all-access pass to the LearningZone, which contains learning tools and other useful resources to help you make the most of your training.