Access Node Master Profile Message for D2D Timing Synchronization

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Solution Overview

Problem

In wireless networks, existing technologies face challenges in efficiently facilitating device-to-device communication between mobile stations, particularly in determining proximity and synchronizing communication based on timing parameters and user profiles, which affects the effectiveness of advertisement delivery and resource allocation.

Innovation Solution

The method involves an access node compiling a device-to-device group based on timing parameters and profile elements, sending a master profile message to select suitable mobile stations, and enabling device-to-device communication by exchanging location and synchronization messages between mobile stations, using timing advance parameters to optimize communication distance and resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If mobile stations use device-to-device communication without access node coordination, then communication efficiency improves, but timing synchronization and proximity determination become unreliable

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidtiming synchronization accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The access node serves as an intermediary that collects timing parameters from all mobile stations and distributes them to relevant stations. This mediator approach enables mobile stations to perform device-to-device communication with accurate timing synchronization, resolving the contradiction between communication efficiency and timing accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The access node performs preliminary actions by pre-calculating and distributing timing parameters to mobile stations before device-to-device communication occurs. This preliminary provisioning of timing information enables accurate synchronization without real-time coordination overhead during actual communication.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If the access node manages all device-to-device communication, then timing synchronization improves, but network complexity and signaling overhead increase

Engineering Contradiction:
Improvetiming synchronization accuracyVSAvoidnetwork control complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system segments the timing management function: the access node handles timing parameter collection and distribution, while mobile stations independently perform proximity determination and communication setup. This segmentation reduces network control complexity while maintaining timing accuracy.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Mobile stations use the timing parameters provided by the access node to autonomously determine proximity and establish device-to-device communication without continuous access node intervention. This self-service approach reduces signaling overhead while maintaining synchronization accuracy.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If mobile stations exchange location information frequently, then proximity determination accuracy improves, but signaling overhead and energy consumption increase

Engineering Contradiction:
Improveproximity determination accuracyVSAvoidenergy consumption for signaling
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The access node performs preliminary collection and processing of timing parameters from mobile stations, preparing proximity determination data in advance. This preliminary action enables accurate proximity determination without requiring frequent energy-consuming location updates from mobile stations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The access node acts as an intermediary that consolidates timing parameter information from multiple mobile stations and makes it available for proximity determination. This mediator approach reduces the need for direct, frequent signaling between mobile stations, lowering overall energy consumption while maintaining accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS8818861B2Finding mobile station for device-to-device communication
Publication Date: 2014.08.26 WSOU INVESTMENTS LLC
  • US8818861B2 patent drawing
  • US8818861B2 patent drawing
  • US8818861B2 patent drawing

AI summary

According to one example, a method may comprise receiving, by an advertising mobile station in a wireless network, a master profile message from an access node, the master profile message comprising, for each of a plurality of mobile stations in the wireless network, a timing parameter and at least one profile element; selecting at least one receiving mobile station from the plurality of mobile stations based, at least in part, on comparing the timing parameter of the receiving mobile station to the timing parameter of the advertising mobile station and checking the at least one profile element of the receiving mobile station against a proposed advertisement; sending a location request message to the at least one receiving mobile station; receiving the location message from the at least one receiving mobile station, the location message indicating a location of the at least one receiving mobile station.