IAB Node Timing Alignment for Rapid Link Switching

The patent applies preliminary action by pre-configuring multiple timing alignment cases (Case 1 through Case 7) with different timing parameters before actual link switching occurs. When short-term blocking is detected, the system can immediately switch to a pre-configured timing alignment case that matches the current network conditions, eliminating the need for slow RRC-based reconfiguration and achieving rapid switching while maintaining connection stability.

The patent implements dynamics by enabling the IAB node to dynamically select and switch between multiple pre-configured timing alignment cases based on real-time network conditions. The system transitions from a static, fixed timing alignment approach to a dynamic, adaptive approach where the timing alignment case can be changed rapidly in response to changing conditions, allowing the system to respond to short-term blocking and optimize performance.

The patent applies segmentation by dividing the timing alignment configuration into discrete, manageable cases (Case 1 through Case 7), where each case represents a specific timing alignment scenario with predefined parameters. This segmentation allows the system to handle multiple timing alignment requirements without creating a single complex configuration management problem, as each case can be independently configured and switched between based on network conditions.

The patent implements parameter changes by systematically varying timing parameters (such as timing advance values, slot configurations, and synchronization settings) across different timing alignment cases. Instead of managing a single complex configuration with many adjustable parameters, the system uses predefined parameter sets for each case, making it easier to configure and switch between different timing alignment scenarios while maintaining flexibility.