Wireless Device Proximity and Interest Determination

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Solution Overview

Problem

Existing device-to-device (D2D) communication systems face inefficiencies in establishing links between wireless devices due to overhead costs and resource contention, as they often require proximity determination without considering shared interests, leading to unnecessary link establishment and resource wastage.

Innovation Solution

Implement a system where D2D links between wireless devices are established based on both proximity and shared interests, using proximity detection signals and advertisement information to determine common interests before allocating radio resources, thereby optimizing link establishment and resource usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If D2D links are established based solely on proximity determination, then link establishment is simplified and faster, but unnecessary link establishment occurs and resources are wasted

Engineering Contradiction:

Improvelink establishment speedVSAvoidresource wastage

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The system performs preliminary interest determination through advertisement information exchange before proceeding to proximity determination and link establishment. This preliminary action filters out devices without shared interests, preventing unnecessary link establishment and resource wastage while maintaining efficient link creation for compatible devices

Inventive Principle:

Principle #10Preliminary action

2Loss of energy

If proximity determination and interest determination are both performed before link establishment, then resource wastage is reduced, but the complexity of the link establishment process increases

Engineering Contradiction:

Improveresource wastageVSAvoidlink establishment process complexity

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The link establishment process is segmented into distinct phases: advertisement information exchange phase, interest determination phase, proximity determination phase, and link establishment phase. This segmentation allows each phase to be optimized independently and enables parallel processing of interest and proximity checks, reducing overall complexity while maintaining resource efficiency

Inventive Principle:

Principle #1Segmentation

3Measurement precision

If advertisement information is exchanged between devices, then shared interests can be determined accurately, but communication overhead increases

Engineering Contradiction:

Improveinterest determination accuracyVSAvoidcommunication overhead

Core Design Contradiction:

Measurement precisionVSLoss of information

Solution Approach 1:

The system extracts only the essential interest-related information from advertisement data, separating it from other device information. By taking out only the relevant interest parameters needed for matching, the system achieves accurate interest determination while minimizing communication overhead by excluding unnecessary data transmission

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS10887725B2Proximity and interest determination by a wireless device

Publication Date: 2021.01.05 MALIKIE INNOVATIONS LTD

AI summary

A first wireless device determines whether the first wireless device is in a specified proximity to a second wireless device based on a signal wirelessly transmitted by the second wireless device. Based on information transmitted by the second wireless device, it is determined whether the first wireless device shares a common interest with the second wireless device.