Question: What is the primary purpose of the "Frame Offset" in UTRAN's Radio Network Subsystem Application Part (RNSAP) signalling?
Option 1: To synchronize the uplink transmissions from multiple User Equipment (UEs) within a cell.
Option 2: To manage handover procedures between different Radio Network Controllers (RNCs).
Option 3: To adjust for propagation delays in the downlink dedicated channel transmissions.
Option 4: To facilitate the translation between Connection Frame Number (CFN) on Iub/Iur and System Frame Number (SFN) on Uu.
Explanation: The correct answer, Option 4, highlights the Frame Offset's role in translating frame numbers between different interfaces (Iub/Iur to Uu), ensuring proper synchronization of dedicated and broadcast channels for each UE and cell. This is crucial for maintaining seamless communication in UTRAN networks. The other options, while related to general telecom concepts, do not accurately describe the specific purpose of Frame Offset as defined in the context of RNSAP signalling.