Question: What determines the timing of the first subframe of each periodic MUSIM (Multi-User Stepped Interference Mitigation) gap in a 5G NR (New Radio) PCell (Primary Cell), based on the `musim-GapRepetitionAndOffset` configuration?
Option 1: SFN (System Frame Number) mod T equals the ceiling of Offset/10, and subframe equals Offset modulo 11.
Option 2: SFN mod T equals the floor of Offset/10, and subframe equals Offset modulo 10.
Option 3: SFN equals the product of T and Offset, and subframe is determined by a separate configuration parameter.
Option 4: The timing is solely based on the `musim-Starting-SFN-AndSubframe` for all MUSIM gaps.
Explanation: According to specifications, for periodic MUSIM gaps, the first subframe's timing is calculated using a formula where SFN mod T (with T being related to `musim-GapRepetition/10`) equals the floor of Offset/10, and the subframe number is determined by Offset modulo 10, ensuring synchronized gap occurrences across the network for effective interference mitigation in multi-user scenarios.