Use of Cyclically Shifted Basic Patterns for Detection Rate Optimization

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This patent describes a method and system for improving the detection and handling of data transmissions in wireless communication networks, especially in systems where multiple networks or devices share the same frequency band (such as LPWAN or PAN). By deriving transmission patterns (hopping patterns) through cyclical and linear shifts from a basic pattern, and managing any out-of-range transmissions via modular (cyclic) re-mapping into permissible time and frequency ranges, the invention enables efficient, energy-saving, and scalable data transmission and detection, especially important in networks with many low-power, battery-operated devices.

Use CasesContent extracted from patent full text and abstract with AI.

• Low Power Wide Area Networks (LPWANs) for IoT devices transmitting sensor data.
• Personal Area Networks (PANs) with multiple uncoordinated devices operating in shared frequency bands.
• Wireless telemetry systems (e.g., smart meters, environmental sensors) that require robust data transmission even under interference.
• Industrial automation or building management systems needing reliable, battery-efficient communication for many distributed nodes.
• Smart city sensor networks with thousands of devices communicating wirelessly.
• Wireless alarm or monitoring systems needing robust, scalable data exchange.

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces computational complexity and power consumption for data detection at receiver stations, especially in dense or large-scale networks.
• Enables coexistence and minimized interference among multiple uncoordinated wireless networks sharing the same frequency band.
• Allows highly scalable network designs (thousands of devices) without exponential increases in detection workload.
• Improves robustness and reliability of data transmission (lower package error rates) even in the presence of collisions and interference.
• Flexible adaptation to different use-cases: supports various latency and robustness requirements via hopping pattern design.
• Permits efficient use of spectrum by distributing transmissions across time and frequency while keeping synchronization overhead low.
• Enhances battery life of devices and base stations—crucial for IoT and remote sensor applications.

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Patent Abstract

Embodiments provide a data transmitter of a communication system, wherein the data transmitter is designed to transmit a data signal corresponding to a hopping pattern, wherein the data signal has a plurality of sub-data-packets that are transmitted in a manner distributed in accordance with a frequency-based and/or time-hop-based occupancy of the frequency band indicated by the hopping pattern, wherein the data transmitter is designed to derive the hopping pattern from a basic hopping pattern on the basis of a shift in the basic hopping pattern in frequency and/or time, wherein the data transmitter is designed so as, when deriving the hopping pattern from the basic hopping pattern, if at least one hop in the hopping pattern due to the derivation of the hopping pattern from the basic hopping pattern on the basis of the shift in the basic hopping pattern in frequency is outside a permissible frequency range, to shift the at least one hop to the permissible frequency range on the basis of a cyclic shift in frequency and additionally to shift the at least one hop on the basis of a linear shift in time.