Drone Cell Handover Parameter Management by Altitude
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Solution Overview
Problem
Existing drone cell handover technologies do not effectively manage measurement parameters based on altitude, leading to frequent cell handovers and increased failure rates in data transmission.
Innovation Solution
A method and system for managing measurement parameters for cell handover in drones, where a target parameter varying with altitude is acquired, and a target measurement parameter is determined and used for cell handover processing, allowing for different measurement parameters at different heights to reduce frequent handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed measurement parameter is used for cell handover regardless of altitude, then the system is simple to operate, but frequent cell handovers occur at higher altitudes leading to increased data transmission failure rates
Solution Approach 1:
The patent implements dynamic adjustment of measurement parameters based on drone altitude. The measurement parameter management module continuously monitors altitude and automatically adjusts the measurement parameter (such as TimeToTrigger) accordingly, transitioning from a fixed static value to a dynamic value that changes with operational conditions. This resolves the contradiction by improving data transmission reliability through altitude-appropriate parameters while keeping the system relatively simple through automated adjustment rather than complex manual configuration.
Solution Approach 2:
The patent directly changes the measurement parameter values based on altitude ranges. Different altitude bands correspond to different measurement parameter settings, allowing the system to optimize handover behavior for each altitude zone. This approach improves reliability by preventing frequent handovers at high altitudes where they are unnecessary, while maintaining simplicity through predefined parameter sets that can be automatically selected based on current altitude.
2Reliability
If measurement parameters are adjusted frequently to match altitude changes, then data transmission reliability improves, but system complexity increases due to continuous parameter monitoring and adjustment
Solution Approach 1:
The system implements dynamic parameter adjustment by establishing a direct linkage between altitude detection and measurement parameter selection. As the drone's altitude changes, the system automatically transitions between predefined parameter sets corresponding to different altitude ranges. This dynamic approach improves handover reliability while managing complexity through automated rule-based adjustment rather than complex real-time optimization algorithms.
Solution Approach 2:
The patent prepares multiple measurement parameter sets in advance, each optimized for specific altitude ranges. These predefined parameter configurations are stored and readily available for immediate selection when altitude thresholds are crossed. This preliminary preparation reduces the complexity of real-time parameter generation while ensuring reliable handover performance across different flight conditions.
3Reliability
If a longer TimeToTrigger is set for high altitude flight, then frequent cell handovers are avoided, but the response time for legitimate handover requests increases
Solution Approach 1:
The patent implements altitude-dependent parameter adjustment where the TimeToTrigger value changes based on the drone's altitude range. At high altitudes where frequent handovers are problematic, a longer TimeToTrigger is applied to stabilize connectivity. At lower altitudes where rapid handover response is more critical, a shorter TimeToTrigger is used. This parameter differentiation resolves the contradiction by applying the appropriate time threshold for each operational context.
Solution Approach 2:
The system applies different TimeToTrigger values for different altitude zones, creating localized optimization for each flight regime. Rather than using a single global parameter, the system tailors the handover response time to the specific operational conditions at each altitude level. This local quality approach ensures that high-altitude stability requirements and low-altitude response requirements are both satisfied through context-appropriate parameter settings.
Data Source
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AI summary
An embodiment of the present invention relates to the technical field of drones and discloses a method and device for managing measurement parameters of cell handover. The method comprises: acquiring a target parameter, the target parameter varying along with height and may be used for characterizing the parameter of the height at which an aircraft is located; determining a target measurement parameter of cell handover according to the target parameter; performing cell handover processing according to the target measurement parameter. By employing the present disclosure, the failure rate of data transmission may be reduced.