Hi,
Apple recently announced DL-TDoA (Downlink TDoA) support on iOS26. This API is currently marked as Beta. We are working on integrating this functionality into our app, already added the APIs and tried to configure a new DL-TDoA session using NIDLTDOAConfiguration (the only parameter it takes is networkIdentifer). The session is configured but automatically invalidated by the OS.
When is DL-TDoA expected to be fully supported by phones? Can we expect a detailed documentation or specification explaining how to arrange the session with the DT-Anchors (channel, ranging duration, ...)? Do we need Bluetooth LE connection with the anchors while running DL-TDoA?
We already have the 4 DT-Anchors (1 initiator and 3 responders) ready, looking forward to be able to test this new exciting feature and get DL-TDoA measurements to trilaterate the phone position within a map.
Regards.