Satellite Modem Bandwidth Allocation for Audio Quality
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Solution Overview
Problem
Existing satellite communication systems face challenges in efficiently managing bandwidth for both audio and data communication in low-population-density regions, leading to potential degradation in audio quality due to new calls and delays in data transmission.
Innovation Solution
The implementation of a modem with a dynamic bandwidth allocation system that anticipates and allocates excess bandwidth for audio communication, ensuring a predetermined margin rate to maintain quality, while allocating bandwidth on demand for data communication, thereby optimizing satellite communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bandwidth is allocated dynamically based on current data communication demand, then data transmission efficiency is improved, but audio communication quality deteriorates when new calls occur
Solution Approach 1:
The patent applies preliminary action by allocating a predetermined margin rate of bandwidth for audio communication before data communication demands arise. The bandwidth management device calculates and reserves excess bandwidth for audio calls in advance, ensuring that when new audio calls occur, sufficient bandwidth is already available to maintain audio quality without being constrained by current data transmission needs.
2Reliability
If excess bandwidth is allocated in advance for audio communication, then audio communication quality is maintained, but data communication bandwidth availability decreases
Solution Approach 1:
The patent applies dynamics by implementing a dynamic bandwidth allocation mechanism that adjusts bandwidth distribution between audio and data communication based on actual usage patterns. The system calculates a margin rate based on historical data communication bandwidth usage and dynamically reserves excess bandwidth for audio communication. When data communication demand is low, more bandwidth is available for audio; when data demand increases, the system adjusts allocation accordingly, optimizing both audio quality and data efficiency over time.
3Productivity
If bandwidth is allocated on-demand for data communication, then bandwidth utilization efficiency is improved, but transmission delay increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and reserving bandwidth based on historical usage patterns before actual communication demands occur. The bandwidth management device analyzes past data communication bandwidth consumption and proactively allocates excess bandwidth for audio communication, reducing the need for real-time bandwidth negotiation and allocation decisions that cause transmission delays.
Data Source
AI summary
When bandwidth is dynamically allocated for audio communication via satellite communication, newly occurring audio communication can negatively affect the communication quality of the existing audio communication. Provided is a data communication apparatus that communicates via a satellite and includes an allocation control section that allocates in advance, for audio communication via the satellite, a bandwidth that is larger than a bandwidth needed for current audio communication being performed via satellite by at least a predetermined bandwidth. A program causes a computer to function as this data communication apparatus. A satellite communication system includes this data communication apparatus and this satellite.