Adaptive Waveform Relay for Fluctuating Channel Capacity
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Solution Overview
Problem
In wireless communication systems where a relay device is mounted on a UAV or geosynchronous satellite, channel capacity fluctuates, leading to inefficient use of communication resources and potential data loss due to varying information amounts relative to channel capacity.
Innovation Solution
A relay device that adjusts waveform data size based on channel capacity, using multiple antennas for diversity and beamforming, and employs MIMO communication to optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the relay device transmits waveform data with fixed data size, then the transmission process is simple, but communication resources are not effectively used when channel capacity varies
Solution Approach 1:
The patent implements dynamic adjustment of waveform data size based on real-time channel capacity measurements. The relay device continuously monitors channel conditions and adapts the amount of waveform data transmitted to match the available channel capacity, transforming a static transmission system into a dynamic one that responds to changing conditions.
Solution Approach 2:
The patent changes the data size parameter of waveform data based on channel capacity. When channel capacity is high, larger waveform data sizes are transmitted to fully utilize available resources. When channel capacity is low, smaller waveform data sizes are transmitted to maintain reliable communication, thus optimizing resource utilization across varying conditions.
2Productivity
If the relay device increases waveform data size to utilize high channel capacity, then communication resources are effectively used, but data may be missing when channel capacity is low
Solution Approach 1:
The patent implements a feedback mechanism where the relay device measures channel capacity and uses this information to adjust waveform data size. The channel capacity measurement serves as feedback that guides the transmission decisions, ensuring that data size matches actual channel conditions and preventing data loss.
Solution Approach 2:
The system dynamically adjusts waveform data size based on real-time channel conditions. When channel capacity is high, the system increases data size to maximize resource utilization. When channel capacity decreases, the system reduces data size to maintain transmission reliability, thus balancing productivity and reliability.
3Reliability
If the relay device uses fixed transmission parameters, then the transmission process is simple, but data loss occurs when channel capacity does not match information amount
Solution Approach 1:
The patent changes transmission parameters, specifically waveform data size, based on measured channel capacity. This parameter adaptation ensures that the amount of data transmitted matches the channel's ability to carry it, preventing data loss while maintaining transmission effectiveness.
Solution Approach 2:
The patent performs preliminary channel capacity measurement before waveform data transmission. This preliminary action allows the system to determine the appropriate waveform data size in advance, ensuring that transmission parameters are optimized before actual data transmission occurs.
Data Source
AI summary
A receiving unit receives a signal from a transmission terminal. A capacity specifying unit specifies a channel capacity related to wireless communication with a base station. A data generation unit generates waveform data representing the received signal. A data size of the waveform data increases as the channel capacity increases. A transmission unit transmits the waveform data to the base station.