Desktop Sharing Over Video Call Channels to Save Bandwidth

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Solution Overview

Problem

Existing desktop sharing methods require installing dedicated applications on both user and customer service terminals, consuming additional bandwidth and port resources, and necessitate complex operations with high skill requirements.

Innovation Solution

Implementing a desktop sharing method that utilizes existing video call media transmission channels to transmit desktop video streams without establishing additional dedicated channels, eliminating the need for separate desktop sharing applications and reducing resource consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If dedicated desktop sharing applications are installed on both user terminal and customer service terminal to establish a shared information transmission channel, then desktop sharing functionality is achieved, but device complexity and operation difficulty increase

Engineering Contradiction:

Improvedesktop sharing functionalityVSAvoidapplication installation and configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The video call application is enhanced to perform multiple functions: both video calling and desktop sharing. The terminal devices use the same video call application for both functions, eliminating the need for separate desktop sharing applications. The application can dynamically switch between video stream transmission and desktop video stream transmission based on service requirements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the desktop sharing functionality into the existing video call application. The shared information transmission channel is established within the same application framework that handles video calls, combining two previously separate functions into one unified system.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If a shared information transmission channel is established to transmit desktop video stream, then desktop sharing is enabled, but bandwidth resources and port resources are consumed

Engineering Contradiction:

Improvedesktop sharing capabilityVSAvoidbandwidth resource and port resource consumption

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The existing video call media transmission channel is made multi-functional by allowing it to transmit both video streams and desktop video streams. The channel infrastructure (bandwidth and ports) that was previously dedicated solely to video calls now serves dual purposes, reducing the need for additional dedicated resources for desktop sharing.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the desktop video stream transmission with the existing video call media transmission channel. Instead of creating a separate dedicated channel for desktop sharing, the system merges both transmission functions into the same channel, thereby avoiding duplication of bandwidth and port resources.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If dedicated desktop sharing applications are installed and configured, then desktop sharing functionality is achieved, but operation complexity and skill requirements increase

Engineering Contradiction:

Improvedesktop sharing functionVSAvoidoperation complexity and skill requirement

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

Users leverage the familiar video call application for desktop sharing instead of learning a new dedicated desktop sharing application. The same application interface and operation patterns are used for both video calls and desktop sharing, reducing the learning curve and operational complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the desktop sharing operation flow with the existing video call operation flow. Users initiate desktop sharing through the same application they use for video calls, eliminating the need to separately install, configure, and operate a dedicated desktop sharing application.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4369703B1Desktop sharing method, apparatus, and system

Publication Date: 2026.04.22 HUAWEI TECH CO LTD

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AI summary

Embodiments of this application provide a desktop sharing method, an apparatus, and a system, and relate to the field of communication technologies, to save a bandwidth resource occupied by desktop sharing and a port resource of a terminal. When the method is used for a call terminal, the method includes: The call terminal establishes a video call media transmission channel, where the video call media transmission channel is used to transmit a call video stream to at least one peer call terminal in a video call service, and the call video stream includes video content shot by the call terminal. The call terminal transmits a desktop video stream to the at least one peer call terminal through the video call media transmission channel, where the desktop video stream includes video content captured by the call terminal from desktop display content.