Channel Access via Hierarchically Organized Channel Access Patterns

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a method and system for wireless communication, where multiple independent and uncoordinated networks operate in the same frequency band. It introduces a hierarchical system of channel access patterns—a network-specific pattern that allocates resources in time and frequency, and a relative pattern that individual users or devices select as a subset for their own data transmissions. This approach reduces interference and data collisions within and between networks, especially useful in license-free (ISM) bands used by many devices and standards.

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

• Wireless sensor networks (WSNs) in industrial or building automation operating in shared frequency bands
• Internet of Things (IoT) devices communicating in dense urban environments with many overlapping networks
• Smart home devices using ISM bands such as Zigbee or Bluetooth, where many uncoordinated systems can cause interference
• Public Wi-Fi hotspots operating in cities where multiple operators share the same unlicensed spectrum
• Mission-critical SCADA or telemetry systems in license-free frequency bands exposed to heavy external RF interference

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces mutual interference between devices and between networks without requiring inter-network coordination
• Minimizes data collision probability and improves transmission reliability, especially in crowded frequency bands
• Allows adaptive resource allocation based on network or data-specific requirements (e.g., latency, robustness)
• Operates without centralized frequency planning, making it suitable for unlicensed, unpredictable environments
• Enables energy-efficient operation due to predictability and possible reduction of unnecessary transmissions
• Scalable to very large numbers of devices without significant increase in signaling or management overhead

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Patent Abstract

Embodiments relate to a controller for a participant of a communications system, wherein the communications system communicates wirelessly in a frequency band which is used for communication by a plurality of communications systems, wherein the controller is designed to determine a network-specific channel access pattern, wherein the network-specific channel access pattern specifies a frequency- and/or time-hop-based allocation of resources of the frequency band which can be used for the communication of the communications system, wherein the controller is designed to determine a relative channel access pattern, wherein the relative channel access pattern specifies an allocation of resources, to be used for a transmission of data of the participant, from the usable frequency- and/or time-hop-based allocation of resources of the network-specific channel access pattern.