Video Conference Terminal Binding for Path Delay Reduction

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Solution Overview

Problem

Current video conference systems face path delay and scalability issues due to the need for a call terminal to act as a server/client, requiring strong processing capabilities and limiting the ability to establish connections between terminals in a private manner, making it difficult to efficiently transmit media streams between conference rooms.

Innovation Solution

A method and system that establish a binding relationship between terminals in conference rooms using a register server to determine correspondences between terminals, allowing media streams to be transmitted directly between corresponding terminals via the shortest path, thereby reducing path delay and improving scalability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a call terminal is used to act as a server/client for establishing calls between conference rooms, then the call establishment can be managed centrally, but the path delay increases and the processing capability requirement becomes high

Engineering Contradiction:
Improvecall establishment managementVSAvoidpath delay
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent extracts the server/client functionality from the call terminal and implements it directly in each terminal device. Each terminal independently establishes calls with corresponding terminals in other conference rooms based on binding relationships, eliminating the need for centralized call terminal mediation and reducing path delay.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the call establishment process into independent terminal-level operations rather than centralized control. Each terminal independently manages its own call connections based on pre-configured binding relationships, allowing parallel call establishment and reducing overall system latency.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If a call terminal acts as a server/client, then call management is centralized, but the processing capability requirement becomes high

Engineering Contradiction:
Improvecall managementVSAvoidprocessing capability
Core Design Contradiction:
Ease of operationVSPower

Solution Approach 1:

The patent removes the server/client role from the call terminal and distributes the call management functionality to all terminals. Each terminal independently handles call establishment, authentication, and media stream transmission based on binding relationships, eliminating the need for high processing power at any single terminal.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent makes all terminals universal in their capability to both initiate and receive calls independently. Each terminal can function as either calling or called party based on the binding relationship, distributing the processing load evenly across all terminals rather than concentrating it in one call terminal.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If connections between terminals are established in a private manner, then direct communication is possible, but the scalability is poor when terminals are increased

Engineering Contradiction:
Improveconnection establishmentVSAvoidscalability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements preliminary action by pre-configuring binding relationships between terminals in different conference rooms before actual calls are made. The register server stores these binding relationships, allowing terminals to quickly establish connections without complex real-time negotiations, thereby improving both reliability and scalability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces a register server as an intermediary that stores and manages binding relationships between terminals. This mediator enables scalable connection establishment by providing a centralized lookup mechanism that doesn't require direct peer-to-peer negotiation between all terminal pairs, thus improving both reliability and adaptability to system growth.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If media streams are transmitted through a call terminal, then centralized control is achieved, but the transmission path becomes long and delay increases

Engineering Contradiction:
Improvecentralized controlVSAvoidmedia stream transmission speed
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

The patent extracts the media stream transmission path from the centralized call terminal route and establishes direct peer-to-peer transmission channels between corresponding terminals in different conference rooms. Terminals transmit media streams directly to their bound counterparts without routing through intermediate call terminals, significantly reducing transmission delay while maintaining control through binding relationship management.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP2509257B1Method, device and system for call establishment
Publication Date: 2015.07.29 HUAWEI DEVICE CO LTD
  • EP2509257B1 patent drawingFigure 1~2
  • EP2509257B1 patent drawingFigure 3~4
  • EP2509257B1 patent drawingFigure 5

AI summary

The present invention, relating to the field of communications, discloses a method, device and system for call establishment, wherein the method includes: obtaining the pre-configured binding relationship between conference rooms and terminals; setting the correspondences between terminals of a calling conference room and terminals of a called conference room according to said binding relationship; and establishing media communication with the terminals provided with the correspondences. Embodiments of the present invention also provide a call establishment device and a call establishment system. Embodiments of the present invention overcome various limits and defects due to the fact that calls between other corresponding terminals can only be established via a particular terminal in each conference room in the prior art, and enable a code stream to be transmitted in the shortest path, thereby greatly reducing the path delay and improving the video conference system scalability.