Wireless Ranging Priority Indication for Medium Congestion

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Solution Overview

Problem

Current wireless communication technologies lack a mechanism to prioritize ranging requests, leading to inefficient use of resources and increased over-the-air traffic and medium congestion.

Innovation Solution

Implementing a system that allows wireless devices to prioritize ranging requests based on the needs of the initiating device, reducing unnecessary ranging sessions and optimizing resource allocation through a negotiation phase where devices can indicate their ranging priority.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wireless devices perform ranging sessions without priority indication, then all ranging requests are treated equally, but this leads to increased over-the-air traffic and medium congestion

Engineering Contradiction:
Improveranging session completionVSAvoidover-the-air traffic and medium congestion
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent introduces a priority parameter (ranging priority indication) that changes the treatment of ranging requests based on their urgency or importance. High-priority requests are processed with preferential scheduling, while low-priority requests may be delayed or dropped under congestion conditions. This parameter-based differentiation resolves the contradiction by allowing the system to maintain reliable ranging completion for critical devices while reducing overall traffic impact through selective prioritization.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If wireless devices perform ranging sessions without priority indication, then the system is simple to operate, but resource allocation is inefficient

Engineering Contradiction:
Improveranging request processingVSAvoidresource allocation efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent implements self-service through autonomous priority-based scheduling at each device. Each wireless device independently determines the priority of its own ranging requests and the priorities of received requests, then autonomously schedules transmissions without requiring complex centralized control. This maintains ease of operation while dramatically improving resource allocation efficiency, as devices can dynamically adjust their behavior based on local conditions and priority levels.

Inventive Principle:
Principle #25Self-service

3Productivity

If wireless devices perform ranging sessions with priority indication, then resource allocation is optimized, but device complexity increases

Engineering Contradiction:
Improveresource allocation efficiencyVSAvoidranging priority management
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the ranging request processing into distinct priority levels (e.g., high priority and low priority queues). Each segment is handled by dedicated scheduling logic that applies simple rules appropriate to that priority level. This segmentation reduces device complexity by breaking down the complex priority management task into manageable, independent segments rather than requiring a single complex scheduling algorithm to handle all requests uniformly.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11770676B2Ranging priority indication
Publication Date: 2023.09.26 APPLE INC
  • US11770676B2 patent drawing
  • US11770676B2 patent drawing
  • US11770676B2 patent drawing

AI summary

This disclosure relates to techniques for performing ranging wireless communication including prioritization. A first wireless device may transmit a request for ranging services to a second wireless device. The first wireless device may transmit an indication of a ranging priority to the second wireless device. The second wireless device may determine a granted ranging priority. The first and second wireless device may perform ranging communication according to the granted ranging priority.