Projection Connection Preemption Control for Stable Screen Casting

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing streaming media projection systems fail to effectively address the issue of preemption logic, leading to inefficient and unreliable communication.

Innovation Solution

Implement a method for optimizing the preemption logic by using a system that dynamically configures the transmission of data packets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the receive end device always supports projection connection preemption, then any transmit end device can initiate preemption to establish a new connection, but this causes interference to normally used preemption connections and degrades user experience

Engineering Contradiction:

Improvepreemption capabilityVSAvoidconnection stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies dynamics by making the preemption capability of the receive end device changeable rather than fixed. The transmit end device can send configuration information to dynamically adjust whether the receive end device supports preemption, allowing the system to adapt between always allowing preemption and protecting established connections based on user needs and connection states

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of preemption support status by transmitting configuration information between devices. The transmit end device can modify the preemption capability parameter of the receive end device through sent configuration data, enabling transition between different preemption modes to balance versatility and reliability

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the transmit end device can dynamically configure preemption capability, then user experience is improved by preventing unwanted preemption, but the system complexity increases due to additional configuration mechanisms

Engineering Contradiction:

Improveconnection stabilityVSAvoidcontrol mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements feedback by having the receive end device send preemption capability information back to the transmit end device. This feedback loop allows the transmit end device to understand the current preemption status and make informed decisions about whether to send configuration information to modify the capability, thereby managing complexity through structured communication

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The receive end device performs self-service by autonomously sending its preemption capability information to the transmit end device without requiring external inquiry. This self-service approach simplifies the overall control mechanism by having each device manage its own capability information and share it when needed

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12598657B2Projection connection control method and electronic device

Publication Date: 2026.04.07 HONOR DEVICE CO LTD

AI summary

This application provides a projection connection control method and an electronic device. The method includes: A transmit end device obtains preemption capability information from a receive end device, where the preemption capability information indicates whether the receive end device supports projection connection preemption; and when the receive end device supports projection connection preemption, the transmit end device sends first configuration information to the receive end device in response to a user instruction, so as to configure the receive end device to not support projection connection preemption.