Unified Slice Priority Calculation Across Frequencies for Cell Reselection

The patent applies preliminary action by pre-calculating and storing reselection priorities for all frequencies including those supporting lower prioritized slices, rather than waiting to perform multiple iterations. The UE prepares a complete priority list in advance that encompasses all possible frequency options across all slices, so when cell reselection is needed, the UE can immediately use the pre-computed priorities without needing to iterate through different slice priorities.

The patent merges the priority information from multiple slices into a single unified reselection priority list. Instead of maintaining separate priority evaluations for each slice and performing iterative comparisons, the method combines all slice-specific frequency priorities and lower prioritized slice priorities into one integrated list that ranks all frequencies. This unified approach allows the UE to consider all frequencies across all slices while using a single pass reselection procedure, thereby reducing implementation complexity.

The patent applies local quality by differentiating the priority assignment for different frequencies based on their slice support characteristics. Each frequency is assigned a specific reselection priority reflecting both its general availability and its configuration for particular slices. Frequencies supporting higher prioritized slices receive higher priorities, while frequencies only supporting lower prioritized slices receive lower priorities. This localized priority differentiation ensures that the UE considers all frequencies but naturally gravitates toward frequencies configured for the UE's required slices.