Distance-Based Resource Exclusion for Wireless Packet Scheduling
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Solution Overview
Problem
Wireless communications systems face interference and latency issues when multiple devices in close proximity attempt to transmit packets on matching resources, leading to inefficient resource utilization and increased interference.
Innovation Solution
Implementing distance-based resource exclusion by considering a resource exclusion parameter such as distance exclusion value or reference signal received power (RSRP) to avoid resource overlap and reduce interference, allowing devices to select resources based on packet priority, reliability, and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wireless communication devices in close proximity transmit packets on matching resources, then resource utilization increases, but interference increases and latency increases
Solution Approach 1:
The patent applies local quality by allowing different resource exclusion parameters for different geographic locations. Devices determine distance exclusion values based on their specific locations and transmit power, creating location-specific resource exclusion zones. This enables fine-grained control where resources are excluded only in local areas where interference would occur, rather than globally, thus maintaining high resource utilization elsewhere.
Solution Approach 2:
The patent changes parameters dynamically by adjusting resource exclusion parameters (distance exclusion values) based on device-specific factors such as transmit power, packet priority, and QoS requirements. High-priority packets or devices with higher transmit power use larger exclusion parameters, while lower-priority devices use smaller parameters, allowing adaptive resource allocation that balances interference avoidance with resource efficiency.
2Productivity
If multiple wireless communication devices in close proximity transmit packets on matching resources, then resource utilization increases, but latency increases
Solution Approach 1:
By implementing location-specific resource exclusion, the patent prevents retransmissions and delays caused by collisions in high-interference areas while allowing simultaneous transmissions in areas where interference is not an issue. This local differentiation reduces unnecessary latency without sacrificing overall resource utilization.
Solution Approach 2:
The patent applies preliminary action by having devices determine and declare their distance exclusion values before transmission. Other devices use these pre-declared parameters to select non-conflicting resources in advance, avoiding the need for retransmissions and reducing latency associated with collision resolution.
3Object-affected harmful factors
If resource exclusion parameters are used to avoid interference, then interference avoidance improves, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling devices to autonomously determine their own distance exclusion parameters based on their transmit power, packet priority, and QoS requirements, and to autonomously select resources that avoid conflicts with other devices. This self-organizing approach reduces the need for complex centralized control while maintaining effective interference avoidance.
Solution Approach 2:
The patent manages complexity by using a standardized set of parameters (distance exclusion values, packet priority, QoS) that devices exchange and use for resource selection. This parameter-based approach provides a systematic and manageable method for interference avoidance without requiring complex algorithms or centralized coordination.
Data Source
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AI summary
Methods, systems, and devices for wireless communications are described. A device may determine a set of parameters related to a transmission of a packet. For example, a device may determine a transmission range indication for the packet, a Quality-of-Service (QoS) of the packet, or a combination thereof. The device may then determine a resource exclusion parameter related to the transmission of the packet based in part on the set of parameters. Following the determination, the device may transmit, to one or more other devices in a wireless communications system, control signaling including the resource exclusion parameter.