Dynamic CSI Triggering for UE Mobility Adaptation

The patent transforms the static, fixed-period CSI reporting mechanism into a dynamic one by introducing triggering conditions based on mobility events. The UE now adapts its reporting behavior according to actual mobility state changes, sending CSI reports only when mobility-triggered conditions are met, rather than following rigid periodic schedules. This dynamic adaptation reduces unnecessary transmissions and power consumption while maintaining necessary reporting frequency during mobility events.

The patent changes the reporting parameter from fixed periodic intervals to event-triggered intervals based on mobility conditions. By monitoring mobility parameters and triggering reports only when specific mobility-related conditions are satisfied, the system optimizes the reporting frequency parameter dynamically, reducing overall reporting frequency and associated power consumption while maintaining accuracy during mobility events.

The patent implements a feedback mechanism where the UE autonomously monitors its own mobility state and generates triggering conditions for CSI reporting based on detected mobility events. This feedback loop allows the UE to inform the base station about mobility-related reporting needs without requiring continuous base station triggering, thereby reducing unnecessary PDCCH monitoring while ensuring timely CSI reporting during mobility events.

The UE performs self-service by autonomously monitoring its mobility state and determining when CSI reporting should be triggered based on its own mobility events. Instead of relying on the base station to know and trigger reporting based on UE mobility, the UE independently evaluates its mobility condition and initiates reporting when appropriate, reducing the signaling overhead and power consumption associated with base station-triggered aperiodic reporting.

The patent enables preliminary action by allowing the UE to evaluate mobility triggering conditions and prepare CSI reports during DRX idle periods. When mobility events occur, the UE can trigger and send CSI reports at the earliest appropriate opportunity, potentially before entering the active state or immediately upon transition, thereby reducing the effective reporting delay while maintaining DRX power-saving benefits during truly idle periods.

The patent introduces dynamic triggering conditions based on mobility events that can activate CSI reporting independently of the DRX active/idle state transitions. This dynamic mechanism allows the system to adapt the reporting timing to actual mobility needs, reducing delays caused by rigid DRX timing while preserving power savings during periods of low mobility activity.