Drone Cell Selection Using Flight Restriction Signaling
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Solution Overview
Problem
Current wireless communication technologies face challenges in achieving desirable communication performance between drones and base stations, particularly in ensuring reliable data transmission and compliance with flight restrictions, due to interference and varying flight altitudes.
Innovation Solution
A wireless communication method that involves a terminal device receiving indication messages from a network device containing flight zone, altitude, speed, and transmission characteristic information, allowing it to adjust its flight parameters and access appropriate cells for reliable data transmission while adhering to flight restrictions, and reporting flight route information to determine optimal communication resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the terminal device operates at higher flight altitudes to improve communication coverage, then the communication range is extended, but the signal-to-interference-plus-noise ratio (SINR) deteriorates due to increased interference
Solution Approach 1:
The patent implements dynamic flight restriction indication where the network device sends flight restriction information to terminal devices, enabling them to dynamically adjust their flight altitudes based on current communication conditions. This dynamic control allows terminal devices to operate at optimal altitudes that balance communication coverage needs with signal quality requirements, resolving the contradiction between extended coverage and maintained SINR.
2Reliability
If the network device sends detailed flight restriction information to all terminal devices, then communication performance is improved, but the signaling overhead and system complexity increase
Solution Approach 1:
The patent applies local quality by providing flight restriction information specifically tailored to terminal devices in particular geographic areas or cells. The network device sends flight restriction indications to terminal devices based on their specific locations and communication needs, rather than imposing uniform restrictions system-wide. This localized approach improves communication performance for affected devices while minimizing overall system complexity and signaling overhead.
Data Source
AI summary
A wireless communication method, a terminal device, and a network device are provided. The terminal device receives a first indication message sent by the network device, so that the terminal device may select, according to the first indication message, to fly in an appropriate cell. This ensures communication between the terminal device and the network device. The method includes: receiving, by the terminal device, the first indication message sent by the network device. The first indication message includes at least one of: flight zone restriction information of at least one cell, flight altitude information of the at least one cell, flight speed information of the at least one cell, volume information of a flight device, and weight information of the flight device, and/or the first indication message includes information about a flight transmission characteristic supported by the at least one cell.