Passive IoT Frame Structures Without Repeated Headers and Tails
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Solution Overview
Problem
In passive/semi-passive Internet-of-Things (IoT) communication, repetitive data transmissions to improve signal-to-noise ratio and communication distance lead to inefficiencies due to the need for frame headers and tails in each repetition, wasting resources and increasing power consumption.
Innovation Solution
A frame structure is proposed that includes a preamble sequence, a first data transmission, a tail sequence, and subsequent data transmissions without additional headers or tails, allowing for efficient repetitive data transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frame headers and tails are included in each repetitive transmission, then data transmission completeness and synchronization are maintained, but resource waste and power consumption increase
Solution Approach 1:
The patent extracts the frame structure components (preamble, headers, tails) from each repetitive transmission and places them only in the first transmission. This allows subsequent repetitions to transmit only essential data without redundant framing, reducing resource waste and power consumption while maintaining transmission reliability through the initial complete frame structure.
Solution Approach 2:
The patent performs preliminary action by establishing the complete frame structure with all necessary headers and tails in the first transmission. This preliminary framing provides synchronization and completeness information that enables the receiver to correctly interpret subsequent repetitive transmissions even without full frame structures, thereby reducing overhead in later transmissions.
2Reliability
If frame headers and tails are included in each repetitive transmission, then data synchronization is maintained, but transmission efficiency decreases
Solution Approach 1:
The patent removes redundant frame structure components from repetitive transmissions, extracting only the essential data payload. The initial transmission contains the complete frame with preamble, headers, and tails for synchronization, while subsequent repetitions transmit only data, significantly improving transmission efficiency while maintaining synchronization through the established frame structure.
Solution Approach 2:
The patent performs preliminary synchronization and framing in the first transmission, establishing the data structure and timing references before repetitive transmissions begin. This preliminary action enables the receiver to maintain synchronization throughout the repetition sequence without requiring full frame structures in each transmission, thereby improving overall transmission efficiency.
3Reliability
If complete frame structures are used in each repetitive transmission, then data integrity is ensured, but resource waste increases
Solution Approach 1:
The patent extracts and eliminates redundant frame structure elements from repetitive transmissions, keeping only the essential data payload in repetitions. The complete frame structure with all integrity-checking components is maintained only in the first transmission, ensuring data integrity while minimizing resource waste by removing unnecessary repeated framing overhead.
Solution Approach 2:
The patent performs preliminary data integrity establishment in the first complete transmission, where all frame structure components including checksums and error detection codes are fully present. Subsequent repetitive transmissions rely on this preliminary integrity establishment, transmitting only essential data without redundant integrity-checking overhead, thereby ensuring data integrity while reducing resource consumption.
Data Source
AI summary
Presented are systems and methods for frame structures for communication in passive/semi-passive Internet-of-Things (IoT). A first wireless communication device may determine a number (N) of repetitive transmissions for data. The first wireless communication device may send data using a frame structure to a second wireless communication device. The frame structure may include a preamble sequence and the data with the N repetitions.