Single-Channel Receiver for TSMA via Synchronization Packet
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Solution Overview
Problem
Current data receivers for Telegram Splitting Multiple Access (TSMA) systems require multi-channel receivers and high computing power to handle unknown time-frequency hopping patterns, making them complex and costly, and they struggle to anticipate transmission start times due to the lack of prior knowledge about the hopping pattern.
Innovation Solution
A data transmitter sends data in sub-packets using a time/frequency hopping pattern with transmission pauses, including a synchronization sub-data packet on a fixed frequency channel that contains information about the hopping pattern, allowing single-channel receivers to decode and receive the data efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-channel receiver is used to receive TSMA transmissions with unknown time-frequency hopping patterns, then the receiver can capture all potential sub-data packets across the frequency band, but the device complexity and cost increase significantly
Solution Approach 1:
The synchronization sub-data packet is transmitted beforehand on a known frequency channel to provide the receiver with advance information about the time-frequency hopping pattern. This preliminary action enables the receiver to prepare and switch to the correct frequency channels at the right times, eliminating the need for continuous multi-channel monitoring and reducing receiver complexity.
2Measurement precision
If the receiver monitors the entire frequency band over a long period to detect time-frequency hopping patterns, then accurate pattern detection is achieved, but the loss of time for synchronization and detection increases
Solution Approach 1:
The synchronization sub-data packet containing hopping pattern information is transmitted in advance on a known frequency channel, allowing the receiver to obtain pattern information quickly without needing to perform lengthy correlation operations across the entire frequency band. This reduces synchronization time while maintaining detection accuracy.
Solution Approach 2:
The synchronization sub-data packet acts as an intermediary that carries essential hopping pattern information from the transmitter to the receiver. This intermediary provides the receiver with the knowledge needed to efficiently track the main data transmission without direct continuous monitoring of all frequency channels.
3Adaptability or versatility
If the receiver correlates the received signal with every possible hopping pattern at any potential start time, then all possible transmissions can be detected, but the computing power and processing requirements increase significantly
Solution Approach 1:
The synchronization sub-data packet is transmitted beforehand to provide the receiver with the specific hopping pattern information before the main data transmission begins. This allows the receiver to use a simple correlation with the known pattern instead of testing every possible pattern, dramatically reducing processing power requirements while maintaining full detection coverage.
4Productivity
If sub-data packets are transmitted distributed across multiple frequency channels according to a time-frequency hopping pattern, then data transmission capacity is maximized, but single-channel receivers cannot receive them efficiently
Solution Approach 1:
The synchronization sub-data packet transmitted on a known frequency channel provides advance information about the time-frequency hopping pattern. This enables single-channel receivers to efficiently switch between frequency channels at the correct times to capture all sub-data packets, maintaining high data transmission capacity while simplifying receiver operation.
Solution Approach 2:
The synchronization sub-data packet serves as an intermediary that bridges the gap between multi-channel transmission and single-channel reception. It provides the single-channel receiver with the knowledge needed to access the distributed sub-data packets across multiple frequency channels, making high-capacity transmission accessible to simple receivers.
Data Source
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AI summary
Embodiments form a data transmitter, which is designed to divide data into a plurality of sub-data-packets, and to transmit the plurality of sub-data-packets in a distributed manner according to a time/frequency hopping pattern, wherein there are non-transmission periods between the sub-data-packets in which there is no transmission, wherein the data transmitter is designed to transmit a synchronisation sub-data-packet on a fixed synchronisation frequency channel, wherein the synchronisation frequency channel and frequency channels, in which the plurality of sub-data-packets are transmitted according to a time/frequency hopping pattern, are different.