P2P Network Content Distribution for Resource-Constrained Peers
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Solution Overview
Problem
Peer-to-peer (P2P) live streaming systems face challenges in scaling to large numbers of clients due to bandwidth and processing requirements, particularly for resource-constrained devices like smartphones and tablets, which can negatively impact their processing power and battery life when uploading content, and this is exacerbated in mixed-type private networks where data traffic needs to be minimized.
Innovation Solution
A method and device for managing data content distribution in a P2P network segment where resource-constrained peers can request and download content from non-constrained peers that are either downloading or idle, reducing the number of incoming connections by utilizing available upload capacity of non-constrained peers, either through a centralized tracker or decentralized peer coordination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If resource-constrained peers upload data content to further peers in a P2P network, then bandwidth requirements of the streaming source are reduced, but processing power and battery life of the resource-constrained peers are negatively affected
Solution Approach 1:
The patent introduces an intermediary role where non-constrained peers act as mediators between the streaming source and resource-constrained peers. Non-constrained peers download content from the streaming source and then upload it to resource-constrained peers, thereby eliminating the need for resource-constrained peers to perform upload operations themselves. This resolves the contradiction by preserving bandwidth efficiency while protecting the energy resources of constrained devices.
Solution Approach 2:
Instead of allowing resource-constrained peers to upload content (the conventional approach), the patent inverts the role: non-constrained peers upload content to resource-constrained peers. This role reversal maintains the P2P bandwidth distribution benefits while avoiding the energy consumption problem, as the uploading is performed by devices with sufficient power resources.
2Ease of operation
If resource-constrained peers download content from external sources in a private network segment, then their content access needs are met, but data traffic in and out of the network segment increases
Solution Approach 1:
The patent implements a self-service mechanism where non-constrained peers within the network segment automatically download content from external streaming sources and make it available to resource-constrained peers. This internal content sharing system eliminates the need for resource-constrained peers to establish separate external connections, thereby reducing overall data traffic while maintaining content access capability. The system serves itself by utilizing existing power resources within the segment.
Solution Approach 2:
The patent merges the download and upload functions into a single operational model where non-constrained peers perform both external downloads and internal uploads. Instead of having separate download operations from external sources and separate upload operations to resource-constrained peers, the system combines these into a unified content distribution flow, reducing redundant data traffic while maintaining content access for all peers.
3Productivity
If a centralized tracker coordinates content distribution in a P2P network, then content distribution efficiency is improved, but system complexity and coordination overhead increase
Solution Approach 1:
The patent makes the tracker universal by giving it multiple functions: it not only coordinates content distribution but also identifies non-constrained peers capable of acting as intermediaries, manages the dual-role peer selection, and optimizes network segment traffic. This multi-functionality consolidates coordination tasks into a single entity, improving distribution efficiency while managing system complexity through centralized intelligence rather than distributed coordination overhead.
Data Source
AI summary
A network supervising device for managing distribution of data content streams in a segment of a peer-to-peer (P2P) network, comprises a processing unit which receives a request for a data content stream from at least one of the peers being constrained from uploading the data content streams to further peers, and identifies whether at least one peer exists within the network segment being capable of uploading the requested data content stream. If no peer within the segment is currently rendering the requested data content stream, the processing unit identifies whether at least one currently idle peer exists within the network segment, which is capable of uploading the requested data content stream. The processing unit then assigns to the at least one peer downloading the requested data content stream, or to the at least one currently idle peer, to upload the requested data content stream to the peer being restrained.