Bluetooth Low Energy Advertising Packet Termination for Power Efficiency
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Solution Overview
Problem
Existing wireless communication systems for electronic devices with limited power face challenges in power efficiency and data integrity, particularly in applications like in vivo analyte monitoring where continuous data transmission is required without unnecessary power consumption.
Innovation Solution
The implementation of a Bluetooth Low Energy advertising scheme where a first electronic device transmits advertising packets that include payload data, and upon receiving a scan request from a second electronic device, the first device terminates the transmission of these packets, thereby conserving battery life. Additionally, a scan response can be sent to backfill any missing data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous advertising packet transmission is maintained to ensure data delivery, then data integrity is improved, but power consumption increases
Solution Approach 1:
The patent implements a feedback mechanism where the second electronic device sends scan request packets to the first electronic device to acknowledge receipt of advertising packets. Upon receiving the scan request, the first electronic device terminates further advertising packet transmission, thereby stopping unnecessary power consumption while maintaining data integrity through the feedback loop.
Solution Approach 2:
The system uses periodic advertising packet transmission followed by termination upon receiving scan requests. This periodic action allows data to be transmitted at intervals rather than continuously, reducing power consumption while still ensuring data delivery to the second electronic device.
2Use of energy by moving object
If advertising packet transmission is terminated early to save power, then power efficiency is improved, but data completeness may be compromised
Solution Approach 1:
The scan request packet serves as feedback indicating that the second electronic device has successfully received and processed the advertising packets. This feedback mechanism allows the first electronic device to confidently terminate transmission without compromising data completeness, as the scan request confirms successful data delivery.
Solution Approach 2:
The second electronic device performs preliminary scanning and receives advertising packets before the first electronic device terminates transmission. The scan request is sent in advance to confirm receipt, allowing the first electronic device to stop transmission proactively rather than reactively, ensuring data completeness is maintained.
3Reliability
If scan response packets are sent to backfill missing data, then data integrity is improved, but communication complexity increases
Solution Approach 1:
The scan response packet acts as a feedback mechanism that identifies and corrects missing data by backfilling only the necessary portions. This targeted feedback approach maintains data integrity without requiring complete retransmission of all advertising packets, thereby limiting the increase in communication complexity to only what is necessary.
Data Source
AI summary
Systems, devices and methods are provided for power-efficient wireless communications between electronic devices. In particular, the embodiments disclosed herein can reduce battery consumption in a transmitting electronic device and enhance data integrity of data received by a receiving electronic device. According to the embodiments, a first electronic device transmits advertising packets according to a wireless communications protocol, wherein the advertising packets include a first payload data. In response to receiving the advertising packets, a second electronic device can transmit a scan request to the first electronic device which, in turn, terminates the transmission of advertising packets.