Ternary Sequence Transmitter for Wireless Data
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Solution Overview
Problem
Current digital wireless communication systems face challenges in efficiently transmitting data between coherent and noncoherent receivers due to differences in modulation schemes and receiver capabilities, leading to limitations in power consumption, complexity, and performance.
Innovation Solution
A method and apparatus that utilize a ternary sequence transmission scheme, where a coherent transmitter maps binary data to ternary code sequences, allowing both coherent and noncoherent receivers to distinguish phases and frequencies, enabling efficient data transmission across different receiver types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coherent modulation scheme is used, then performance is improved, but power consumption and complexity increase
Solution Approach 1:
The patent employs dynamic modulation where the same transmitted signal can be interpreted differently by coherent and noncoherent receivers based on their respective capabilities. The system dynamically adapts the interpretation of ternary sequences (elements -1, 0, 1) to match receiver type, allowing coherent receivers to achieve high performance while noncoherent receivers consume less power.
Solution Approach 2:
The patent changes the parameter space by introducing ternary sequences with three distinct elements (-1, 0, 1) instead of traditional binary sequences. This parameter change enables the system to convey more information per symbol while maintaining compatibility with both coherent and noncoherent reception methods, resolving the contradiction between performance and power consumption.
2Reliability
If coherent modulation scheme is used, then performance is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal communication system where a single transmitter using ternary sequences can serve both coherent and noncoherent receivers. The same signal structure achieves high performance for coherent receivers while remaining interpretable by simpler noncoherent receivers, eliminating the need for separate transmission systems.
Solution Approach 2:
The patent segments the signal interpretation process by allowing different receiver types to process the same ternary sequence differently. Coherent receivers utilize phase information for high-performance decoding, while noncoherent receivers use energy detection, effectively segmenting the reception methodology based on device complexity.
3Reliability
If different modulation schemes are used for coherent and noncoherent receivers, then receiver capabilities are optimized, but system compatibility decreases
Solution Approach 1:
The patent implements universality by designing a single ternary sequence transmission system that simultaneously optimizes for both coherent and noncoherent receivers. The transmitter uses ternary sequences that can be decoded with high performance by coherent receivers while also being detectable by noncoherent receivers, achieving multi-functionality in one system.
Solution Approach 2:
The ternary sequence acts as an intermediary between coherent and noncoherent reception methods. It carries information that can be extracted through phase-coherent detection for optimal performance or through simpler energy-based detection for low-complexity receivers, bridging the gap between the two reception paradigms.
Data Source
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AI summary
The present invention relates to a method and a device for transmitting a pay load sequence, and provides in one embodiment a transmitter comprising a first signal converter for converting a ternary payload sequence composed of elements -1, 0, or 1 into a first signal, wherein the first signal converter comprises: a ternary sequence mapper for generating the ternary payload sequence by mapping a pre-designed sequence into a binary data sequence; and a converter for converting the ternary payload sequence into the first signal.