Altitude-Dependent Measurement Reporting for Wireless Handover Optimization
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Solution Overview
Problem
Current wireless communication systems do not effectively consider altitude variations when managing neighbor cell relations and handover processes for user equipment (UEs) operating at different altitudes, leading to inefficient radio resource utilization and suboptimal handover performance.
Innovation Solution
Incorporating altitude information into the Neighbor Relation Table (NRT) to distinguish beneficial cell relations for UEs operating at various altitudes, and modifying measurement and reporting procedures to reflect altitude-dependent parameters such as hysteresis and cell offsets, ensuring more efficient radio network resource management and handover optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If altitude information is incorporated into measurement reporting procedures, then handover performance and radio resource utilization are improved, but system complexity and processing overhead increase
Solution Approach 1:
The patent applies local quality by introducing altitude-specific measurement parameters and reporting configurations. Different measurement objects, reporting criteria, and quantity configurations are defined for different altitude ranges, allowing the system to optimize handover performance for each altitude zone without uniformly increasing complexity across all operations.
Solution Approach 2:
The patent changes physical parameters by incorporating altitude as a new dimension for measurement reporting. Altitude-dependent parameters such as measurement filters, reporting thresholds, and cell offsets are introduced, allowing the system to adapt measurement configurations based on the UE's vertical position, thereby improving handover reliability without requiring fundamental system redesign.
2Productivity
If altitude-dependent measurement parameters are implemented, then radio resource utilization is optimized, but signaling overhead and processing requirements increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring altitude-dependent measurement parameters and reporting configurations through RRC signaling. The network provides UE-specific measurement configurations that include altitude-related parameters before handover scenarios occur, allowing UEs to perform optimized measurements without real-time processing delays during critical handover moments.
Solution Approach 2:
The patent segments measurement reporting into altitude-specific configurations, where different measurement objects, reporting criteria, and quantity configurations are defined for different altitude ranges. This segmentation allows the system to process only relevant measurements for each altitude zone, reducing overall processing requirements while optimizing radio resource utilization.
Data Source
AI summary
In embodiments disclosed herein, the measurement and reporting procedures associated with RRCConnectionReconfiguration or RRCConnectionResume message consider node altitude (e.g., UE altitude and/or base station altitude).