Isolation Estimation System for Wireless Interference
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Solution Overview
Problem
Interference between different wireless communication technologies leads to increased error rates and user experience issues due to signal interference, with existing methods either requiring external platforms, incorrect measurements, or increased circuit complexity.
Innovation Solution
An isolation estimation system using a processor circuit that calculates isolation by comparing signal-in-air power spectral density with leakage signal power spectral density, leveraging a narrower bandwidth communication technology that supports frequency hopping to determine adjustments for transmitter devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different wireless communication technologies transmit signals at the same time, then communication functionality is enhanced, but signal interference increases and error rate increases
Solution Approach 1:
The patent implements dynamic frequency hopping where the receiver device changes its operating frequency over time according to a hopping pattern. This dynamic frequency change allows the system to avoid persistent interference from other wireless communication technologies, as the transmitter and receiver continuously switch between different frequency channels, thereby maintaining communication functionality while reducing signal interference.
Solution Approach 2:
The patent changes the frequency parameter of the communication signal through frequency hopping. By varying the operating frequency over time rather than using a fixed frequency, the system can escape from interference conditions, thus enhancing communication versatility while reducing harmful interference effects.
2Measurement precision
If isolation estimation is performed using external platforms or complex measurement methods, then measurement accuracy improves, but device complexity increases
Solution Approach 1:
The receiver device performs isolation estimation using its own internal resources - its receiver circuitry, processor, and existing frequency hopping mechanism. The device measures the power spectral density of received signals and calculates isolation values without requiring external measurement platforms or additional complex circuits, thus achieving accurate isolation estimation while maintaining simple device architecture.
Solution Approach 2:
The patent uses the power spectral density measurement as an intermediary parameter to estimate isolation. Instead of directly measuring isolation which would require complex equipment, the system measures the power spectral density of the received signal and derives isolation information from this intermediate measurement, simplifying the overall measurement process.
Data Source
AI summary
An isolation estimation system includes a transmitter device, a first receiver device, a second receiver device, and a processor circuit. The transmitter device adopts a first communication technology. The transmitter device is configured to transmit a transmitting signal to the first receiving device. The second receiver device is configured to acquire a leakage signal power spectral density of a leakage signal corresponding to the transmitting signal. The second receiver device adopts a second communication technology. A bandwidth of the second communication technology is narrower than a bandwidth of the first communication technology, and the second communication technology supports a frequency hopping process. The processor circuit is configured to calculate isolation according to a signal-in-air power spectral density of the transmitting signal and the leakage signal power spectral density. The isolation is for determining whether to adjust the transmitter device.