BLE Advertising Frame Data History Integration
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Solution Overview
Problem
There is a need to minimize the power required for BLE communication, particularly in BLE advertising mode, while ensuring communication reliability and data reconstruction, especially in IoT applications where low-power wireless communication is crucial.
Innovation Solution
A BLE telecommunication method where a first device constructs frames TR_n by inserting current data into a first data field and previously transmitted data into secondary fields, and transmits these frames on a single selected channel, following a predefined channel loop, to minimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data are transmitted on multiple BLE advertising channels (37, 38, 39) to improve reliability and reduce interference, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent segments the data transmission across multiple advertising intervals rather than transmitting all data on multiple channels simultaneously. Each frame contains both current data and historical data from previous intervals, allowing the system to use a single channel while ensuring data delivery through temporal redundancy.
Solution Approach 2:
The patent incorporates historical data into each transmitted frame in advance, so that if a transmission is lost, the receiver can reconstruct the missing data using previously received information. This preliminary inclusion of backup data eliminates the need for retransmission on additional channels.
2Use of energy by moving object
If data are transmitted on a single BLE advertising channel to reduce power consumption, then power consumption is reduced, but communication reliability decreases and data loss increases
Solution Approach 1:
The patent embeds historical data within each advertising frame structure. Each frame TR_n contains the current dataset D_n in a first data field and datasets from previous N frames (D_{n-1} to D_{n-N}) in second data fields, creating a nested structure where past data is contained within present transmissions.
Solution Approach 2:
The historical data acts as an intermediary that mediates between the transmitter and receiver reliability issues. By including past data in each frame, the system creates a buffer that protects against data loss without requiring additional transmission channels or immediate retransmission protocols.
3Reliability
If advertising packets are sent at fixed intervals on multiple channels to ensure data delivery, then data delivery reliability is improved, but the complexity of channel management increases
Solution Approach 1:
The patent uses periodic advertising intervals with a fixed pattern for channel selection and frame construction. Each frame TR_n follows a consistent structure with data fields arranged in a predictable sequence, and transmissions occur at regular intervals, simplifying the management complexity while maintaining reliable delivery.
Data Source
AI summary
A BLE telecommunication method, BLE standing for Bluetooth Low Energy, is implemented by a first telecommunication device, frames TR_i, i=n−N to n, including a first field for current data and N second fields for data transmitted in the first field of previously transmitted frames; including, during construction of frame TR_n, inserting: into the first data field of frame TR_n, the dataset D_n; into the jth second data field of frame TR_n, j=1 to N, the dataset D_(n−j) previously transmitted in the first field of frame TR_(n−j); the channel selected for transmission of frame TR_n−j being the channel succeeding, in the defined loop, the channel that was selected for transmission of frame TR_(n−j−1) at transmission time t_(n−j−1), j=0 to N.