5G New Calling With Synchronized Mini-Apps for Low-Latency Interaction

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Solution Overview

Problem

Existing 5GNC screen sharing methods are inconvenient, bandwidth-intensive, and prone to latency and jitter, especially when the called party needs to interact with the application, leading to increased network load and user experience degradation.

Innovation Solution

A method for establishing a call between devices that involves downloading specific applications, monitoring interactions, and transmitting synchronization information through a data channel to synchronize the applications' states, allowing real-time interaction and support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If screen sharing is used to enable interaction between call parties, then the called party can view the application interface, but bandwidth consumption increases and network load rises

Engineering Contradiction:
Improveinteraction capabilityVSAvoidbandwidth consumption
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The patent extracts only the essential interaction information (click events, input events, navigation events) from the full screen sharing stream, transmitting only these discrete event data points rather than continuous video streams. This reduces bandwidth consumption while maintaining interaction capability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of transmitting actual screen images through video streaming, the patent creates simplified digital copies of interaction states and events, transmitting these data representations rather than visual content. This eliminates the need for high-bandwidth video transmission while preserving interaction functionality.

Inventive Principle:
Principle #26Copying

2Speed

If video streaming is used for screen sharing, then real-time visual interaction is achieved, but latency and jitter increase

Engineering Contradiction:
Improveinteraction responsivenessVSAvoidlatency
Core Design Contradiction:
SpeedVSLoss of time

Solution Approach 1:

The patent replaces the mechanical video streaming system with an event-driven data transmission system. Instead of continuously transmitting video frames that require decoding and rendering, the system transmits discrete interaction events that are immediately processed and displayed, eliminating video processing delays and reducing latency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements periodic transmission of interaction events at optimized intervals, sending data only when state changes occur rather than continuous streaming. This reduces jitter and latency by transmitting information on-demand based on actual interaction needs.

Inventive Principle:
Principle #19Periodic action

3Ease of operation

If screen sharing is implemented to improve user experience, then interaction capability is enhanced, but network overload occurs and costs increase

Engineering Contradiction:
Improveuser experienceVSAvoidnetwork capacity
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent changes the data transmission parameters from high-bandwidth video streams to low-bandwidth event data structures. By altering the nature of transmitted information from continuous media to discrete events, the system maintains user experience while dramatically reducing network resource consumption and avoiding overload.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent transmits only the partial information necessary for interaction (event types, coordinates, timestamps) rather than complete screen content. This selective transmission provides sufficient data for interaction functionality while minimizing network load and avoiding overload conditions.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP4642006A15g new calling establishment method through synchronized mini-apps
Publication Date: 2025.10.29 ORANGE SA
  • EP4642006A1 patent drawingFigure 1~2
  • EP4642006A1 patent drawingFigure 3
  • EP4642006A1 patent drawing

AI summary

Method for a caller device to establish a call with a called device, comprising: - detecting (S0) a call to said called device; - placing (S1) an IMS call session and establishing a data channel; - downloading (S2) specific applications (A2, A2') to the caller device (UE-A) and called device (UE-B); during the IMS call session, monitoring (S4) interactions with said caller and called devices, and if an interaction is detected (S5), transmission (S6), from this device to the other device, of synchronization information reflecting the interaction through the data channel.