Telecommunication Network Video Conference Scalability
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Solution Overview
Problem
Existing videoconferencing systems face scalability issues with large-scale multiparty conferences due to the need for powerful conference bridges that perform extensive video decompression, scaling, and recompression, which limits the number of participants and increases costs.
Innovation Solution
A telecommunication network architecture that uses a centralized control system and low-power optimized packet switches to route video streams directly between video end-point devices, eliminating the need for centralized conference bridges and leveraging data streaming devices that do not require video encoding capabilities, thus efficiently utilizing network resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conference bridges perform video decompression, scaling, and recompression for each participant, then video quality and composition are improved, but processing power requirements and cost increase exponentially with the number of participants
Solution Approach 1:
The system divides the conference bridge functionality into two segments: a centralized control system that performs high-level composition logic and control, and distributed endpoint devices that perform local video decoding and rendering. This segmentation allows the control system to manage complexity without bearing the full processing burden for all participants, while endpoints handle their own video composition locally, reducing overall processing power requirements at the bridge.
Solution Approach 2:
The patent introduces an intermediary control system that acts as a mediator between participants, managing composition decisions and distributing control instructions rather than directly processing all video streams. This intermediary approach allows intelligent composition without requiring the bridge to perform extensive real-time video processing for each participant, reducing the processing-power-to-participant ratio.
2Adaptability or versatility
If the number of participants in a video conference increases, then conference capability and versatility are improved, but the processing power and cost of the conference bridge increase
Solution Approach 1:
Endpoint devices are empowered with self-service capabilities to perform local video decoding, composition, and rendering without requiring all processing to be centralized at the bridge. Each endpoint independently handles its own video processing needs, allowing the system to scale to more participants without proportionally increasing bridge complexity and processing power.
Solution Approach 2:
Instead of having the conference bridge perform all video processing and composition for participants, the system inverts the approach by having endpoints perform their own video processing and composition locally. The bridge's role is reduced to control and coordination, enabling scalable conferences without linear increases in bridge complexity.
3Ease of operation
If centralized conference bridges are used to manage video streams, then control and coordination are improved, but network bandwidth consumption increases due to repeated decompression and recompression
Solution Approach 1:
Video streams are pre-encoded and compressed at the participant endpoints before transmission to the conference bridge. This preliminary compression action eliminates the need for repeated decompression and recompression at the bridge, reducing network bandwidth consumption while maintaining centralized control over stream distribution and composition decisions.
Data Source
AI summary
A telecommunication network 9 for video conference calls comprises: devices including: a plurality of telecommunication end-point devices 35,36,38,39; and a plurality of data streaming devices 33,40 each for streaming encoded data from at least one of the telecommunication end-point devices 35,36,38,39 to at least one other of the data streaming devices 33,40 and/or to at least one other of the telecommunication end-point devices 35,36,38,39. The telecommunication network further comprises a controller 34 for controlling: forming of telecommunication connections between at least some devices on the network; and data streams along the formed telecommunication connections. The telecommunication network 9 is configured such that the controller 34 controls: the forming of a telecommunication connection between telecommunication end-point devices 35,36,38,39 via at least one of the data streaming devices 33,40; and encoded data streamed along the formed telecommunication connection between telecommunication end-point devices 35,36,38,39.