Batteryless BLE Tag Advertising on Periodic Data Channels
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Solution Overview
Problem
Batteryless wireless communication devices face challenges in transmitting beacon signals effectively due to high interference on BLE advertisement channels, limiting their ability to successfully transmit data with reduced power and congestion.
Innovation Solution
The use of BLE data channels (0-36) for transmission, synchronized using energy burst boundaries or PAwR, allows devices to operate as centrals and send beacon signals at specific intervals, reducing interference and increasing detection probability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If batteryless wireless communication devices transmit beacon signals using BLE advertisement channels, then they can achieve wireless communication functionality, but they experience high interference and congestion that limits successful transmission
Solution Approach 1:
The patent extracts the beacon signal transmission from the congested BLE advertisement channels and relocates it to dedicated data channels. This separation removes the harmful interference and congestion from the transmission path, allowing batteryless devices to communicate reliably without competing with other BLE devices for advertisement channel resources.
Solution Approach 2:
The patent introduces an intermediary mechanism where a powered device acts as a relay. The batteryless device transmits to the powered device on data channels, which then forwards the information to the central device. This intermediary approach bypasses the interference-prone advertisement channels entirely while maintaining the beacon signal functionality.
2Ease of operation
If batteryless devices harvest energy continuously to enable transmission, then they can maintain communication functionality, but they consume more harvested energy reducing operational sustainability
Solution Approach 1:
The patent implements periodic action by having batteryless devices transmit beacon signals only at specific intervals rather than continuously. Devices wake up periodically to transmit on data channels and then return to sleep mode, significantly reducing energy consumption from both harvesting and transmission while maintaining effective communication coverage.
Solution Approach 2:
The patent enables self-service through asymmetric communication where powered devices actively scan and initiate communication with batteryless devices on data channels. This eliminates the need for batteryless devices to continuously monitor and respond on advertisement channels, allowing them to conserve energy by remaining in low-power states until needed.
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
This approach enables successful transmission of beacon signals with reduced interference, enhancing the probability of detection and utilization of batteryless wireless communication devices in environments with high congestion.
Implementation Method 1
harvest energy from the energizing signal
Data Source
AI summary
Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, a wireless communication device can receive an energizing signal from an energizer and can harvest energy from the energizing signal. The wireless communication device can synchronize, based on one of the energizing signal or a beacon signal, timing for a timing schedule associated with the wireless communication device. The wireless communication device can transmit a signal according to the timing schedule associated with the wireless communication device.