Optimized Hopping Patterns for Different Sensor Nodes and Variable Data Lengths Based on the Telegram Splitting Transmission Method

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This patent discloses an improved method for transmitting wireless data, particularly in sensor networks or telemetry systems, by optimizing time and frequency hopping patterns and supporting variable-length data packets. The invention splits messages (telegrams) into multiple smaller packets and transmits them using at least two hopping patterns (which might be shifted in time or frequency relative to each other). This approach improves reliability and efficiency in environments where many independent sensor nodes transmit data without centralized coordination, and it reduces computational effort for the receiver.

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• Large-scale wireless sensor networks (e.g., smart buildings, industrial monitoring) where many low-power nodes communicate to a central base station.
• Telemetry systems in remote areas, such as environmental monitoring or agriculture.
• Internet of Things (IoT) devices deployed in unlicensed or interference-prone frequency bands.
• Battery-powered devices requiring low-energy operation and reliable data transfer.
• Wireless communication in non-coordinated or ad-hoc networks, such as disaster response or temporary event setups.

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• Significantly increases reliability of data transmission in dense, uncoordinated sensor networks by reducing packet collisions and decoding failures.
• Supports flexible data lengths, allowing more efficient transmission without unnecessary dummy data, thereby saving energy and bandwidth.
• Reduces computational complexity at the receiver, enabling efficient operation even with limited processing resources.
• Improves the ability to handle simultaneous transmissions from multiple nodes, increasing network throughput and capacity.
• Minimizes channel occupancy and interference with other systems, enhancing coexistence in crowded unlicensed bands.
• Can derive unique hopping patterns from transmitted data, reducing additional signaling and improving robustness against overlapping transmissions.

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Patent Abstract

Exemplary embodiments provide a transmission method for the wireless transmission of data in a communications system (e.g. a sensor network or telemetry system). The method comprises the step of transmitting the data using at least two time hopping patterns and/or frequency hopping patterns, wherein a second pattern of the at least two patterns is a time- and/or frequency-shifted version of a first pattern of the at least two patterns.