Parallel Multi-Bit Wireless Messaging for Low Latency
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Solution Overview
Problem
Current wireless communication systems face challenges in achieving low latency, especially in high-frequency trading and other applications where microseconds of latency can result in significant revenue differences, due to factors like propagation delays and receiver latency being tied to signal-to-noise ratio (SNR) conditions.
Innovation Solution
The technology adjusts receiver latency automatically based on instantaneous channel conditions by using multiple encoding frequencies, where the presence or absence of tones indicates bit values, allowing for parallel multi-bit transmission and reception, and employs techniques like phase modulation and RF detection to optimize signal processing, eliminating the need for handshaking and training sequences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wireless communication protocols are used with handshaking and training sequences, then reliability is improved, but latency increases
Solution Approach 1:
The patent removes handshaking and training sequences from the communication protocol, extracting only the essential data transmission components. This elimination of non-essential procedures directly reduces latency while maintaining core communication reliability through the parallel multi-bit transmission mechanism.
Solution Approach 2:
The system performs channel estimation and signal preparation in advance using the uplink pilot signal, so that when data transmission occurs, the receiver is already prepared to decode immediately. This preliminary action eliminates the need for separate training sequences and reduces overall latency.
2Reliability
If receiver latency is increased to improve decoding reliability in low SNR conditions, then reliability is improved, but speed deteriorates
Solution Approach 1:
The patent changes the fundamental parameter of transmission structure by using parallel multi-bit transmission instead of sequential bit transmission. This allows the receiver to decode multiple bits simultaneously regardless of SNR conditions, maintaining speed while improving reliability through the parallel structure that provides inherent error detection capabilities.
Solution Approach 2:
The system transitions from time-domain sequential decoding to frequency-domain parallel processing by utilizing multiple orthogonal pilot signals. This dimensional change allows simultaneous decoding of multiple bits across different frequency dimensions, maintaining high speed while achieving reliable decoding even in low SNR conditions.
3Loss of time
If propagation delays are reduced by using shorter transmission paths, then latency is improved, but adaptability to long-distance communication deteriorates
Solution Approach 1:
The patent creates a universal communication system that can operate effectively across multiple distance ranges by using parallel multi-bit transmission. The system's core mechanism remains effective whether transmitting over short or long distances, as the parallel structure compensates for propagation delays and the receiver can adjust decoding based on channel conditions regardless of distance.
Solution Approach 2:
The system dynamically adapts to different transmission distances by adjusting the decoding threshold and integration time based on received signal strength and channel conditions. This dynamic adaptation allows the same parallel multi-bit transmission mechanism to achieve low latency for short distances while maintaining reliability for long-distance communication.
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 reduces message latency by allowing the receiver to adjust decoding time based on SNR, enabling faster and more reliable data transfer without increasing error correction, thus improving communication efficiency and reducing latency across long transmission paths.
Implementation Method 1
The transmitter mixes the summed signal into a carrier signal to generate a modulated message
Implementation Method 2
The modulated message is propagated and refracted at or in an ionospheric layer back to earth
Implementation Method 3
The receiver separates a signal for each of the multiple encoding frequencies, integrates the separated signal for each of the multiple encoding frequencies, and detects an original message based on the integrated signal
Data Source
AI summary
Technology for wireless transmission and reception of messages is disclosed. The disclosed technology includes detection and/or reception of messages in a manner in which the receiver latency for a message is automatically adjusted for each particular message. For example, the receiver latency for each message may be automatically adjusted based on channel conditions, e.g., instantaneous channel conditions, between the transmitter and receiver at the time that message is transmitted/received. For example, the receiver latency for a message may be proportional or otherwise associated with to the signal-to-noise ratio (“SNR”) at the receiver at the time that message is received.