Frequency-Shift PCB Communication Reducing RF Interference
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Solution Overview
Problem
Conventional communication systems face challenges in supporting diverse media content and communication standards, leading to interference issues due to shared transmission and reception frequencies in PCB-to-PCB communications.
Innovation Solution
A method and system for frequency-shift based PCB-to-PCB communications, where modulation and demodulation frequencies are adjusted to generate transmit and receive signals, utilizing a repeater architecture with multiple antennas and intermediate frequency processing to reduce radio frequency interference by operating on different frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If PCBs use shared transmission and reception frequencies for communication, then device complexity is reduced, but radio frequency interference increases
Solution Approach 1:
The patent divides the communication frequency spectrum into separate segments for different communication sessions. Each session operates on its own dedicated frequency pair (transmission and reception frequencies), preventing interference between simultaneous sessions. This segmentation allows multiple PCBs to communicate concurrently without sharing frequencies, resolving the contradiction between system simplicity and interference reduction.
Solution Approach 2:
The patent introduces frequency dimensionality to the communication system by establishing separate transmission and reception frequency bands for different sessions. Instead of sharing a single frequency, the system creates a two-dimensional frequency space where PCBs can simultaneously transmit and receive on different frequencies without interference, thereby reducing RF interference while maintaining manageable system complexity.
2Device complexity
If multiple communication sessions operate on the same frequency, then device complexity is reduced, but communication reliability decreases due to interference
Solution Approach 1:
The system segments the frequency spectrum to assign dedicated frequency pairs to different communication sessions. Each session has its own transmission and reception frequencies isolated from other sessions, eliminating interference and ensuring reliable communication. This segmentation approach maintains manageable complexity by using standardized frequency allocation mechanisms.
3Object-affected harmful factors
If frequency-shift based communication is implemented, then radio frequency interference is reduced, but device complexity increases due to multiple frequency adjustments
Solution Approach 1:
The patent implements dynamic frequency selection and adjustment capabilities that allow PCBs to automatically adapt to available frequencies. The system dynamically assigns frequency pairs to different sessions based on real-time conditions, enabling flexible operation without manual intervention. This dynamic approach manages complexity through automated frequency management while achieving interference reduction.
Solution Approach 2:
The system changes the frequency parameters of communication signals to create separate operational bands for different sessions. By adjusting transmission and reception frequencies as variables, the system achieves interference-free communication while managing complexity through parameter-based differentiation rather than structural complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables concurrent multiple communication sessions with reduced interference, improving performance by allowing PCBs to operate on different transmission and reception frequencies, thus enhancing the reliability and efficiency of wireless communication systems.
Implementation Method 1
adjusting and utilizing one or more modulation frequencies to generate transmit signals by the one or more transmitters based on received/or generated modulation control information
Implementation Method 2
adjusting and utilizing one or more modulation frequencies to generate transmit signals
Data Source
AI summary
Aspects of a method and system for frequency-shift based PCB-to-PCB communications may include, in a PCB comprising one or more receivers and one or more transmitters, adjusting one or more modulation frequencies and utilizing the adjusted modulation frequencies to generate transmit signals by the one or more transmitters based on received and/or generated modulation control information. One or more demodulation frequencies may be adjusted and utilized to generate intermediate frequency signals by the one or more receivers based on received and/or generated demodulation control information. The modulation control information and the demodulation control information may be received via a communication device comprising the PCB. The modulation control information and demodulation control information may be received on a link operating in a frequency band different from the transmit frequencies and the receive frequencies.