Question: Which of the following best describes the role of the NGAP protocol in relation to User Equipment (UE) positioning in an NG-RAN environment?
Option 1: The NGAP protocol is solely responsible for transmitting UE location data directly to external networks.
Option 2: The NGAP protocol serves as a transport layer for LPP and NRPPa messages over the NG-C interface and manages NG-RAN Node positioning procedures.
Option 3: The NGAP protocol is used exclusively for initiating and terminating non-positioning related procedures between the AMF and NG-RAN Node.
Option 4: The NGAP protocol functions as a substitute for LPP and NRPPa protocols in UE positioning within the NG-RAN architecture.
Explanation: This is correct because the NGAP protocol acts as a transport mechanism for LPP and NRPPa messages, facilitating communication between the Access and Mobility Management Function (AMF) and the NG-RAN Node, and is involved in initiating and terminating positioning procedures related to the NG-RAN Node.