Aerial UE Paging Area Update for Power Reduction

The patent applies local quality by differentiating the paging area update behavior for aerial UE versus terrestrial UE. Specifically, when aerial UE is detected (through altitude information or mobility patterns), the system applies a different condition for paging area update that considers the distance to neighboring cells, whereas terrestrial UE follows the conventional update condition. This localized differentiation resolves the contradiction by optimizing handover reduction for aerial UE without causing excessive interference to base stations.

The patent changes the parameter for paging area update condition based on UE type. For aerial UE, the update condition incorporates distance to neighboring cells (using parameters like RSRP thresholds or geometric distance calculations), while terrestrial UE uses the standard tracking area code comparison. This parameter change allows aerial UE to maintain connections over longer distances without frequent handovers, while still triggering updates when moving far enough to cause interference concerns.

The patent applies local quality by implementing location-aware paging area update conditions specifically for aerial UE. When the UE is determined to be aerial (through altitude sensors or mobility pattern analysis), the system calculates the distance to neighboring cells and compares it against threshold values. This localized approach allows aerial UE to extend coverage by observing more cells without triggering frequent location updates, thereby reducing power consumption compared to the conventional approach where any cell observation would trigger updates.

The patent applies partial action by selectively updating location information only when the aerial UE moves beyond a certain distance threshold from the serving cell, rather than updating on every cell observation. This partial update mechanism reduces the frequency of location reports while still maintaining adequate tracking, thus extending effective coverage area without proportionally increasing power consumption.

The patent applies dynamics by making the paging area update condition adaptive based on UE mobility characteristics. The system dynamically adjusts the update threshold based on whether the UE is aerial or terrestrial, and potentially based on speed and altitude parameters. For aerial UE, the condition becomes distance-to-neighboring-cell-based, which is less frequent than conventional updates. This dynamic adaptation maintains manageable complexity while significantly reducing power consumption for aerial applications.

The patent applies preliminary action by pre-determining the UE type (aerial or terrestrial) through altitude information or mobility pattern analysis before applying the appropriate paging area update condition. This preliminary classification allows the system to prepare the correct update strategy in advance, avoiding the need for complex real-time decisions and maintaining simplicity while optimizing for the specific UE type's power consumption characteristics.