Question: On which antenna port are Narrowband Positioning Reference Signals (NPRSs) transmitted?
Option 1: Antenna Port 1000
Option 2: Antenna Port 2005
Option 3: Antenna Port 2006
Option 4: Antenna Port 3000
Explanation: NPRSs are specifically defined to be transmitted on antenna port 2006, which is a dedicated configuration for this type of signal. This ensures that the positioning reference signals can be accurately received and processed by devices compatible with NB-IoT technology.