UAV Identification Message Broadcasting for Collision Avoidance
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Solution Overview
Problem
The increasing prevalence of unmanned aerial vehicles (UAVs) has led to safety concerns due to the challenge of identifying these devices within cellular communication networks, which can result in collisions and inefficient tracking by network devices.
Innovation Solution
A method of communication is introduced where terminal devices, especially UAVs, determine and broadcast an identification message under specific conditions such as connection failures, time intervals, spatial areas, or upper-layer indications, and network devices receive and forward reports containing identification messages from other terminal devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If UAVs operate without identification broadcasting, then communication network complexity is reduced, but safety and collision avoidance capability deteriorate
Solution Approach 1:
The patent implements preliminary action by requiring UAVs to broadcast identification messages before and during flight operations. The network device pre-configures broadcast conditions (spatial areas, time intervals, connection states) that trigger identification message transmission, ensuring identification is established before potential collision scenarios arise. This proactive approach enhances safety without requiring complex real-time detection systems.
2Reliability
If UAVs continuously broadcast identification messages, then identification reliability is improved, but network energy consumption and message overhead increase
Solution Approach 1:
The patent applies periodic action by implementing time interval-based broadcasting mechanisms. The network device configures specific time intervals between identification message transmissions, and UAVs broadcast messages periodically or at configured intervals rather than continuously. This reduces energy consumption and network overhead while maintaining sufficient identification reliability through strategic periodic updates.
Solution Approach 2:
The patent implements dynamics by making identification message broadcasting adaptive to connection states and spatial conditions. UAVs adjust their broadcasting behavior based on whether they are in connected or non-connected states, and based on whether they are within configured spatial areas. This dynamic approach ensures reliable identification when needed while conserving energy during stable flight conditions.
3Productivity
If network devices track all UAVs, then management efficiency is improved, but network device complexity and processing load increase
Solution Approach 1:
The patent applies segmentation by dividing the tracking responsibility between network devices and terminal devices. Terminal devices (UAVs) autonomously broadcast their identification messages and manage their own identification visibility, while network devices monitor and manage based on received broadcasts. This segmentation reduces network device complexity by offloading identification management to individual UAVs, while maintaining overall management efficiency through coordinated tracking.
Data Source
AI summary
Example embodiments of the present disclosure relate to an effective mechanism for identifying the terminal. In this solution, the first terminal device determines whether a broadcast condition for an identification message is satisfied based on at least one of a connection status, a time interval, a location of the first terminal device and an indication from an upper layer. Further, first terminal device broadcasts the identification message of the first terminal device if the broadcast condition for an identification message is satisfied. In this way, an event triggered reporting between terminal devices is achieved, which may achieve an assist resource management and collision avoidance or tracking.