Question: What happens to an ongoing positioning process in Iu mode during an intra RNC soft or softer handover?
Option 1: The MSC Server restarts the location request with the new Serving RNC.
Option 2: The ongoing positioning process is aborted on Iu level and the SGSN decides whether to restart.
Option 3: A new RRC connection is established, and the positioning process starts from the beginning.
Option 4: The existing RRC connection can normally be used without aborting the ongoing positioning process on Iu level.
Explanation: During intra and inter RNC soft and softer handovers, the continuity of the RRC connection allows for uninterrupted processes. Since the handover is within the same or to a neighboring cell(s) under the same RNC (or in some cases between RNCs for softer handovers), the existing connection remains viable, enabling the ongoing positioning process to continue without interruption on the Iu interface level, ensuring seamless location services during these types of handovers.