Question: In MR-DC (Multi-RAT Dual Connectivity) scenarios, when a UE's stay in a PSCell (Primary Secondary Cell) exceeds the maximum Time Stay parameter value, how does the Serving Node (SN) handle consecutive entries with the same PSCell identity?
Option 1: The SN overwrites previous entries with new ones, using the latest stay time for the PSCell.
Option 2: The SN stores each entry separately, without aggregating stay times for consecutive entries with the same PSCell identity.
Option 3: The SN sums up the stay times for all consecutive PSCell entries with the same identity to calculate the total stay time in that PSCell.
Option 4: The SN discards previous entries and only keeps the latest entry for a given PSCell identity.
Explanation: This is because, according to the described behavior for handling UE History Information, when a UE stays in a PSCell beyond the maximum Time Stay parameter, the SN is instructed to store PSCell information with consecutive entries using the same PSCell identity and calculate the total stay time by summing up the stay times for all these entries. This approach allows for accurate tracking of the UE's presence in specific cells over extended periods.