Aircraft Communication Device Dynamic Resource Allocation
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Solution Overview
Problem
Air-to-ground communication systems face challenges with co-channel interference and inefficient resource allocation, particularly in environments where multiple aircraft communicate with base stations using the same frequency band, leading to decreased communication quality and band use efficiency.
Innovation Solution
The implementation of a communication device with a controller that acquires location information and uses frequency hopping schemes and error-correcting codes to randomize co-channel interference, while also dynamically allocating communication resources based on traffic demand and aircraft location, allowing for efficient use of resource blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple aircraft use the same frequency band for communication with base stations, then communication coverage is improved, but co-channel interference increases and communication quality deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation where the base station controller assigns different resource blocks (frequency-time combinations) to different aircraft based on their location, communication demand, and interference conditions. This dynamic adjustment allows the system to maintain multiple aircraft communications while adapting resource distribution in real-time to minimize co-channel interference and optimize overall communication quality across the coverage area.
2Device complexity
If communication resources are allocated uniformly to all aircraft, then resource allocation simplicity is maintained, but band use efficiency decreases due to uneven traffic demand
Solution Approach 1:
The patent applies local quality by allocating communication resources according to each aircraft's specific characteristics and needs. The base station controller evaluates individual aircraft factors such as location, communication traffic demand, and interference environment, then assigns resource blocks accordingly. This localized, demand-driven allocation optimizes band utilization efficiency without requiring overly complex centralized control mechanisms.
3Stability of the object's composition
If fixed resource allocation is used for aircraft communication, then system stability is maintained, but adaptability to changing traffic demand and location conditions deteriorates
Solution Approach 1:
The patent implements a dynamic resource allocation mechanism where the base station controller continuously monitors aircraft location, communication demand, and interference conditions, then adjusts resource block assignments accordingly. This dynamic approach maintains system stability through structured control procedures while simultaneously adapting to changing traffic patterns and environmental conditions, resolving the contradiction between fixed stability and flexible adaptability.
Data Source
AI summary
The communication device is installed in an aircraft and is capable of radio communication with a base station on the ground. The communication device comprises a transmitter, a receiver, and a controller. The controller acquires location information of the aircraft at a predetermined time, and communicates with the base station using an allocation pattern of communication resources according to the location information of the aircraft.