Server-Mediated P2P Data Offloading for Wireless Networks

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Solution Overview

Problem

Wireless communication systems face inefficiencies when network infrastructure loading conditions become excessive, degrading communication quality, and direct peer-to-peer (P2P) communication can be faster and more efficient, but determining optimal conditions for offloading traffic from network infrastructure to P2P connections is challenging.

Innovation Solution

A method and apparatus that optimize data transfers by determining if an opportunity for P2P data transfer arises within a time sensitivity window, targeting a transfer time for the data transfer based on this opportunity, and transmitting transfer notification data to the wireless device, including the targeted transfer time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traffic is offloaded from network infrastructure to direct P2P communication, then communication efficiency and speed improve, but determining optimal offloading conditions becomes complex

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidoffloading decision complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by establishing monitors and announcing services in advance before actual data transfer is needed. Devices publish their service capabilities and location information proactively, allowing the server to predict future P2P opportunities without real-time complexity. This advance preparation enables efficient offloading decisions when conditions are favorable.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The server acts as an intermediary that receives monitor information from wireless devices, determines optimal transfer times based on predicted P2P opportunities, and notifies devices when offloading should occur. This mediates the complexity of real-time condition assessment between multiple devices, centralizing the decision-making process and simplifying individual device operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Speed

If P2P communication is used instead of network infrastructure, then data transfer speed increases, but network load management becomes challenging

Engineering Contradiction:
Improvedata transfer speedVSAvoidnetwork load management
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The system implements feedback mechanisms where wireless devices continuously announce their service availability and location to the server. The server monitors these updates and provides feedback by notifying devices when P2P transfer opportunities arise. This feedback loop enables dynamic network load management, allowing traffic to be routed through P2P connections when beneficial while maintaining infrastructure routing when necessary.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts traffic routing between infrastructure-based and P2P communication modes based on real-time conditions. The server determines optimal transfer times by evaluating predicted P2P opportunities and notifies devices accordingly, enabling the network to adaptively switch between communication modes to optimize both speed and load distribution.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If centralized database processing is used for discovery, then relevance matching is simplified, but privacy and power consumption increase

Engineering Contradiction:
Improvediscovery processingVSAvoidpower consumption
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The invention extracts the continuous location tracking and discovery processing from centralized cloud databases and relocates it to individual wireless devices. Each device independently maintains monitors for relevant attributes and announces its own services, eliminating the need for perpetual cloud-based location tracking. This reduces both privacy concerns and the power consumption associated with continuous centralized discovery operations.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP3262822B1Opportunistic, location-predictive, server-mediated peer-to-peer offloading
Publication Date: 2019.08.21 QUALCOMM INC
  • EP3262822B1 patent drawingFigure 1
  • EP3262822B1 patent drawingFigure 2
  • EP3262822B1 patent drawingFigure 3

AI summary

Systems and methods are disclosed for optimizing data transfers. The method may include receiving a request to transfer data between a wireless device and a data transfer target, wherein the requested data transfer is associated with a time sensitivity window (TSW), determining whether an opportunity for a peer-to-peer (P2P) data transfer will arise during the TSW, targeting a transfer time from within the TSW for performing the requested data transfer based on the opportunity determination, and transmitting transfer notification data to the wireless device, wherein the transfer notification data includes the targeted transfer time.