Does U1 in Iphone utilize AoA?

Hello, i want to know if an Iphone 11 with its U1 Chip for example is able to get angle information of another Iphone and in how many dimensions. I reckon more than 2D is not possible.

An Iphone in combination with the Airtag seems to be able to get angular information but the antenna array might be provided in the tag rather than the Iphone.

Thanks for your help!

Does U1 in Iphone utilize AoA?
 
 
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