Drone Communication Resource Allocation via Frequency Segmentation
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Solution Overview
Problem
Current Wi-Fi communication systems used in small drones face interference and high communication resource collision probabilities, leading to instability and safety risks, especially in scenarios where multiple drones operate, which restricts the commercialization of drone services due to regulatory challenges.
Innovation Solution
A synchronized wireless distributed communication system that enables distributed terminals to autonomously select and allocate communication resources among multiple channels with different center frequencies in real time, minimizing resource collisions through a resource allocation channel and interference power calculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Wi-Fi communication scheme is used for small drones, then communication can be established, but communication resource collision probability increases and system stability decreases
Solution Approach 1:
The communication resources are segmented into multiple channels with different center frequencies. Each drone can be allocated to different frequency channels based on spatial distribution and communication needs, reducing resource collision probability while maintaining system stability through frequency division multiplexing
Solution Approach 2:
The patent implements dynamic resource allocation where drones can switch between different frequency channels based on real-time communication conditions. This dynamic adjustment allows the system to adapt to changing environments and maintain stable communication while minimizing resource collisions
2Reliability
If mobile communication system is used for small drones, then communication coverage is improved, but communication latency increases and real-time control capability decreases
Solution Approach 1:
The patent employs local quality by implementing distributed communication among drones using their own onboard transmitters and receivers. Each drone communicates locally with control terminals and other drones without needing to connect to distant mobile communication base stations, thereby reducing latency while maintaining coverage through distributed architecture
3Quantity of substance
If channel resources with different frequencies are allocated to multiple drones, then resource collision is reduced, but near-far problem causes communication disruption
Solution Approach 1:
The patent implements feedback mechanisms where drones monitor communication quality and channel conditions in real-time. Based on this feedback, drones can adjust their transmission parameters or switch channels to avoid the near-far problem, maintaining communication stability while operating on different frequency channels
Solution Approach 2:
The system dynamically changes communication parameters such as transmission power, frequency channel, and modulation schemes based on detected interference levels and distance to control terminals. This allows drones to adapt to the near-far problem by adjusting parameters to maintain reliable communication across different frequency allocations
Data Source
AI summary
An operation method of a first distributed terminal, in a synchronized wireless distributed communication system which has a plurality of communication resources configured with a plurality of channels having different center frequencies and includes the first distributed terminal and a second distributed terminal, may comprise receiving slots mapped to the communication resources in a resource allocation channel having a center frequency independent from the plurality of channels; measuring communication environments of the communication resources by using a mapping relationship between the received slots of the resource allocation channel and the communication resources; selecting a first communication resource to be allocated using the measured communication environments of the communication resources; allocating the selected first communication resource; and continuously occupying the allocated first communication resource.