Quiet Wireless Enrolment for Low-Interference RF Pairing
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Solution Overview
Problem
Existing wireless devices in home and automotive environments face interference and operational degradation due to high duty cycle transmissions in the 2.4 GHz ISM band, affecting coexistence among devices like Wi-Fi, Bluetooth, and Kleer RF technology.
Innovation Solution
A wireless media network with a source device that switches between active and quiet enrolment modes, using enrolment trigger packets and RSSI thresholds to optimize coexistence, allowing devices to operate efficiently by reducing false triggers and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless devices use high duty cycle transmissions in the 2.4 GHz ISM band, then data transmission reliability is improved, but interference with other wireless devices increases
Solution Approach 1:
The patent implements periodic action by using discontinuous transmission and reception patterns. The source device alternates between active enrolment mode, quiet enrolment mode, and data mode, rather than maintaining continuous high duty cycle transmissions. This periodic operation reduces interference with other wireless devices while maintaining reliable data transmission through structured transmission intervals and silence periods.
Solution Approach 2:
The patent applies dynamics by making the transmission duty cycle adaptive rather than static. The source device dynamically adjusts its transmission behavior based on operational state (enrolment vs. data mode) and environmental conditions. The device can transition between different operational modes and adjust transmission power and timing, creating a dynamic system that balances reliability with interference reduction.
2Reliability
If wireless devices continuously transmit enrolment packets, then device connectivity is improved, but power consumption increases
Solution Approach 1:
The patent reduces power consumption by implementing periodic action in the enrolment process. Instead of continuous transmission, the source device uses periodic enrolment attempts with defined intervals between active enrolment mode and quiet enrolment mode. This allows the device to maintain connectivity capability while consuming less power during idle enrolment periods.
Solution Approach 2:
The patent applies self-service by enabling the wireless device to autonomously manage its enrolment process and power state. The source device automatically transitions between active and quiet enrolment modes based on whether response packets are received, without requiring continuous external intervention. This self-managing enrolment process optimizes the balance between connectivity reliability and power consumption.
3Area of stationary object
If multiple wireless devices operate simultaneously in the same frequency band, then network coverage is improved, but operational degradation occurs
Solution Approach 1:
The patent applies segmentation by dividing the operational timeline into distinct segments or modes: active enrolment mode, quiet enrolment mode, and data mode. This temporal segmentation allows multiple devices to share the frequency band by operating in different time segments, reducing simultaneous interference while maintaining broad network coverage and operational reliability.
Solution Approach 2:
The patent uses silence periods and quiet enrolment modes as intermediaries between active transmission periods. These intermediary states act as buffer zones that reduce interference between simultaneous operations of multiple wireless devices, allowing network coverage to expand while maintaining operational reliability through structured interference management.
Data Source
AI summary
In a wireless media network a source device provides entertainment content to a sink device over a radio frequency (RF) wireless channel. The source device can go into a receive only quiet enrolment mode until activated by a sink device transmitting enrolment trigger packets or having a signal strength above a certain threshold, thereby improving coexistence with other wireless devices. The source device changes from the quiet enrolment mode to an active enrolment mode when activated by the sink device.