Ad Hoc Network Duplicator Node for Media Distribution
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Solution Overview
Problem
Infrastructure-based communication systems face limitations in distributing media during group calls due to high radio frequency resource usage, leading to potential failures from network congestion and hardware/software malfunctions, especially when group members are in close proximity.
Innovation Solution
The system employs dynamically formed ad hoc networks within predefined groups, where each ad hoc network selects a duplicator node to receive media from the infrastructure device and distribute it to other nodes, reducing the burden on infrastructure devices and conserving bandwidth and RF resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized equipment is used to distribute media to each receiver in a group call, then media distribution can be achieved, but radio frequency resources are significantly consumed and the number of participants is limited
Solution Approach 1:
The patent segments the media distribution task by dividing participants into multiple ad hoc networks, with each network having its own duplicator node. Instead of one centralized controller serving all participants, multiple distributed duplicator nodes serve different subsets of participants through their respective ad hoc networks, reducing the RF resource burden on any single node.
Solution Approach 2:
The patent introduces duplicator nodes as intermediary devices between the media source and end receivers. These duplicator nodes receive media from the source, store it temporarily, and redistribute it to participants in their respective ad hoc networks, thereby reducing direct RF resource consumption between the source and all participants.
2Reliability
If centralized equipment distributes media to all participants, then complete media coverage is achieved, but the probability of media transfer failures increases due to network congestion and hardware/software malfunctions
Solution Approach 1:
The patent divides the single point of failure (centralized controller) into multiple distributed duplicator nodes, each serving a specific ad hoc network. This segmentation eliminates the bottleneck and single point of failure, as media can be redistributed through multiple independent paths if one node fails.
Solution Approach 2:
The patent changes the operational parameters of the distribution system by allowing dynamic formation of ad hoc networks and selective participation of duplicator nodes. This flexibility enables the system to adapt to changing network conditions and failover scenarios, improving overall reliability.
3Quantity of substance
If media is distributed directly to all group members by the infrastructure device, then all participants receive media, but bandwidth requirements and the number of sites involved increase
Solution Approach 1:
The patent merges multiple receivers into ad hoc networks where they can share media locally. Participants within the same ad hoc network can exchange media directly peer-to-peer or through their duplicator node, reducing the need for the infrastructure device to transmit to every participant individually.
Solution Approach 2:
The patent uses duplicator nodes to create copies of the media stream and distribute them to multiple ad hoc networks. Instead of the infrastructure device sending separate streams to each participant, it sends one stream to each duplicator node, which then copies and redistributes to its network members, significantly reducing total bandwidth consumption.
Data Source
AI summary
A wireless communication device acquires membership in a predefined group, joins an ad hoc network associated with the predefined group, and joins and participates in a first session established through an infrastructure device for distributing media to the predefined group. If the wireless communication device is a duplicator node for the ad hoc network, then it receives the media from the infrastructure device and distributes the media other nodes of the ad hoc network, otherwise it receives the media from the duplicator node. The infrastructure device identifies the duplicator node for each ad hoc network associated with the predefined group and each member of the predefined group that is not a node of any of the ad hoc networks and distributes the media only to these members of the predefined group.