Hybrid P2P Response Routing for Low-Traffic Private Delivery

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Solution Overview

Problem

Existing hybrid peer-to-peer (HP2P) networks face inefficiencies in real-time data transmission and privacy protection due to unnecessary data transmission and challenges in maintaining tree-based overlay networks, leading to increased network traffic and security vulnerabilities.

Innovation Solution

Implementing asymmetric and reverse response routing mechanisms in HP2P networks to selectively transmit responses through unicast methods or the shortest path, minimizing unnecessary traffic and ensuring privacy by using unique identifiers and cryptographic signatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If responses are transmitted through the overlay network to all peers, then all peers can receive the response data, but unnecessary network traffic is generated and privacy is compromised

Engineering Contradiction:

Improveresponse deliveryVSAvoidnetwork traffic

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts the response transmission path from the overlay network and routes it through a different channel (direct peer-to-peer or shortest path). This separation allows the broadcast request to traverse the overlay network for reliable delivery to all peers, while the response is efficiently delivered only to the requesting peer through an alternative path, eliminating unnecessary traffic to other peers.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the request-response communication into two distinct phases: (1) broadcast phase where the request is transmitted through the overlay network to all peers, and (2) response phase where the reply is transmitted through a dedicated direct path or shortest path. This segmentation allows each phase to use the most appropriate transmission method for its specific purpose.

Inventive Principle:

Principle #1Segmentation

2Reliability

If responses are transmitted through the overlay network, then all peers receive the response, but privacy and copyright protection is compromised

Engineering Contradiction:

Improveresponse deliveryVSAvoidprivacy exposure

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the response transmission from the public overlay network and routes it through a private direct connection or shortest path. This ensures that sensitive response data containing copyrighted material or personal information is transmitted only to the authorized requesting peer, preventing unauthorized peers from accessing and potentially violating privacy or copyright rights.

Inventive Principle:

Principle #2Taking out (Extraction)

3Speed

If tree-based overlay network is used for real-time data transmission, then transmission speed is improved, but network maintenance becomes difficult and reliability decreases when peers leave or fail

Engineering Contradiction:

Improvedata transmission speedVSAvoidnetwork stability

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The patent applies asymmetry by using different network topologies for different communication directions: tree-based overlay network for one-way broadcast requests (where speed is prioritized) and direct peer-to-peer or mesh-based paths for two-way request-response communications (where reliability is prioritized). This asymmetric approach allows the system to leverage the speed advantage of tree structures for broadcasting while avoiding their reliability disadvantages for interactive communications.

Inventive Principle:

Principle #4Asymmetry

4Reliability

If mesh-based overlay network is used for file transmission, then stability and scalability are improved, but real-time transmission capability is reduced

Engineering Contradiction:

Improvenetwork stabilityVSAvoidreal-time transmission speed

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS20260020108A1Peer in hybrid peer-to-peer network and client operating method

Publication Date: 2026.01.15 ELECTRONICS & TELECOMM RES INST

AI summary

A method of operation of peers and clients in a hybrid peer-to-peer network is disclosed. The method of operation of the disclosed requesting client includes an operation of transmitting a broadcast data message to a neighboring peer in an overlay network to which the requesting client belongs, and an operation of receiving a response data message corresponding to the broadcast data message from a responding client via a transport method other than the overlay network. The response data message is generated by the responding client in response to the broadcast data message transmitted via the neighboring peer.