Conducted RF Link Interference Mitigation via Channel Selection
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Solution Overview
Problem
Existing communication methods between electronic devices face interference and power consumption issues due to the use of traditional cabling and wireless RF links, with cables prone to damage and wireless signals causing security concerns and power inefficiency.
Innovation Solution
Implementing a conducted RF link that uses a conductor to transmit modulated RF signals, selecting non-interfering frequency bands based on country-specific regulations and active wireless channel information to minimize interference, and utilizing simple connector schemes for efficient power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless RF links are used for communication, then cable-related problems (wear, damage, connectors) are eliminated, but security concerns and power consumption increase
Solution Approach 1:
The patent replaces traditional mechanical cabling with a conducted RF link that uses electromagnetic signals transmitted through a conductor (cable). This substitution eliminates the mechanical wear and connector issues of traditional cabling while maintaining a physical connection that reduces power consumption compared to wireless RF, thus resolving the contradiction between reliability and power consumption.
Solution Approach 2:
The patent changes the transmission medium parameter from air (wireless) to conductor (conducted RF), and optimizes the RF signal characteristics by selecting specific frequency bands. This parameter change allows the system to achieve reliable communication with lower power consumption by utilizing the conductor's superior signal transmission properties compared to wireless air interface.
2Ease of operation
If wireless RF signals are transmitted through air, then cable-related issues are avoided, but signals can be received by unintended devices creating security problems
Solution Approach 1:
The patent replaces wireless air-based RF transmission with conducted RF transmission through a physical conductor. This substitution maintains the convenience of wireless-like operation while securing the communication channel, as the conductor physically restricts signal transmission to the connected devices only, eliminating eavesdropping by unintended devices.
Solution Approach 2:
The patent introduces a conductor (cable) as an intermediary medium between the electronic devices. This intermediary physically guides the RF signals from the source device to the destination device, preventing unauthorized reception by other devices and thus resolving the security vulnerability while maintaining ease of operation.
3Speed
If wireless signals are amplified for transmission, then communication range is extended, but power consumption increases reducing battery life
Solution Approach 1:
The patent substitutes wireless RF transmission with conducted RF transmission through a conductor. This substitution eliminates the need for high-power amplification required in wireless transmission, as the conductor efficiently guides the RF signals with minimal loss. Consequently, signal transmission effectiveness is maintained or improved while power consumption is significantly reduced, extending battery life.
4Adaptability or versatility
If multiple RF links (wireless and conducted) operate simultaneously, then communication versatility is improved, but interference between links increases
Solution Approach 1:
The patent segments the RF spectrum into different frequency bands, allocating specific bands for wireless communication and other bands for conducted RF communication. This frequency segmentation allows multiple RF links to operate simultaneously without interfering with each other, thus maintaining communication versatility while eliminating RF interference between links.
Solution Approach 2:
The patent dynamically selects and switches between different frequency bands for wireless and conducted RF communications based on the active communication mode. This dynamic frequency allocation ensures that when conducted RF is active, the system uses non-interfering frequency bands, thereby maintaining versatility while preventing interference between simultaneous RF links.
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
Reduces power consumption and eliminates security issues associated with wireless communication while minimizing interference from wireless signals, providing a reliable and efficient communication method between electronic devices.
Implementation Method 1
techniques for reducing interference in communications that utilize a conducted radio frequency (RF) link to facilitate communication between electronic devices
Data Source
AI summary
A technique for reducing interference on conducted RF links involves a determination of active wireless channels in an electronic device. For example, the device can determine whether there are any active cellular, WiFi, and/or Bluetooth channels. If so, any active channels can be removed from a list of possible channels that can be used for generating the RF signals for the conducted RF link. If any idle channels remain available, one or more may be selected for use for the conducted RF link. Those idle channels having a higher offset from any active channels may be given a greater weight in the selection since they should be less likely to be subject to interference. If not, one of the least crowded active channels may be selected for use for the conducted RF link.