UAV Terminal Mobility State Determination with Adaptive Parameters
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Solution Overview
Problem
Existing mobile communication systems struggle to effectively determine the mobility state of uncrewed aerial vehicles (UAVs), leading to delayed entry into medium or high mobility states, especially when terminals move at high speeds.
Innovation Solution
A method and device for determining the mobility state of a terminal, including the use of specific parameter sets and scaling factors tailored for uncrewed aerial vehicles (UAVs), through messages like RRC connection release or system information blocks, enabling quicker identification of medium or high mobility states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional mobility state determination methods are used for UAV terminals, then the system maintains compatibility with existing mobile communication standards, but the terminal enters medium or high mobility states delayed despite moving at high speeds
Solution Approach 1:
The patent applies parameter changes by introducing UAV-specific mobility state determination parameters that differ from conventional parameters. The base station configures different evaluation criteria, time periods, and cell reselection counters specifically for UAV terminals, allowing them to enter mobility states more quickly based on their unique flight characteristics and high-speed movement patterns
Solution Approach 2:
The patent segments the mobility state determination process by creating separate parameter sets for different terminal types. It divides the conventional unified mobility determination into terminal-specific configurations, with dedicated parameters for UAVs that enable faster response to their high-speed movement without affecting other terminal types
2Productivity
If UAV-specific parameter sets are introduced for mobility state determination, then the mobility state entry speed improves, but the system complexity increases
Solution Approach 1:
The patent applies dynamics by making the parameter configuration flexible and adaptable. The base station dynamically selects and configures appropriate parameter sets based on terminal type identification, allowing the system to switch between conventional and UAV-specific parameters as needed. This dynamic configuration approach enables fast mobility state determination for UAVs while maintaining system flexibility
Solution Approach 2:
The patent uses the base station as an intermediary that manages the complexity. The base station receives terminal type information, selects appropriate parameter sets, and configures them for specific terminals. This intermediary role centralizes the complexity management, allowing terminal devices to simply follow configured parameters without needing to understand or manage the complex parameter selection logic
Data Source
AI summary
The disclosure relates to a mobile communication system terminal and base station operation and, specifically, to a communication technique for determining a mobility state, and a system therefor. A method performed by a terminal in a wireless communication system of the disclosure comprises the steps of: receiving, from a base station, a message including a parameter for determining a mobility state of the terminal; identifying, from the message, information for determination of a mobility state of an uncrewed aerial vehicle (UAV) terminal; and determining the mobility state of the terminal on the basis of the information for determination of the mobility state of the UAV terminal.