Near-Field Relay Data Sharing for Low-Mobility Devices

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Solution Overview

Problem

Existing technologies fail to enable seamless sound and screen projection between electronic devices with low mobility, such as smart speakers and mobile devices, resulting in poor user experience.

Innovation Solution

A relay electronic device establishes near field wireless connections with primary and secondary electronic devices to facilitate media data projection, determining policies based on network connection modes and distance to efficiently project data between them.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If sound projection and screen projection are implemented between electronic devices with low mobility using near field network and APP, then data sharing between devices is enabled, but collaboration between electronic devices with low mobility cannot be implemented

Engineering Contradiction:

Improvecollaboration capability between low-mobility devicesVSAvoidsystem complexity for projection

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A relay electronic device is introduced as an intermediary between the primary electronic device and the secondary electronic device. The relay device receives projection requests, establishes near field connections with both devices, and facilitates data transmission, enabling collaboration between low-mobility devices that cannot directly connect

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The projection system is segmented into three independent components: the primary electronic device (data source), the relay electronic device (intermediary), and the secondary electronic device (data destination). This segmentation allows each device to operate independently while maintaining collaboration through the relay mechanism

Inventive Principle:

Principle #1Segmentation

2Productivity

If direct projection is used between primary and secondary electronic devices, then data sharing is efficient, but connection compatibility between different network modes is poor

Engineering Contradiction:

Improvedata projection efficiencyVSAvoidnetwork connection compatibility

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The relay electronic device acts as a protocol translator and connection bridge, establishing separate near field connections with the primary and secondary devices. It handles network mode compatibility issues by managing different connection types (Wi-Fi, Bluetooth, NFC) independently, allowing efficient data projection regardless of the specific network modes used by the endpoint devices

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If relay electronic device is introduced to enable projection between low-mobility devices, then collaboration between devices is achieved, but system complexity increases

Engineering Contradiction:

Improvedevice collaboration capabilityVSAvoidsystem architecture complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The relay electronic device is designed with multi-functionality, serving as both a data transmitter and receiver, and capable of establishing multiple types of near field connections simultaneously. This universal design consolidates multiple functions into a single device, reducing overall system complexity despite the added intermediary layer

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The relay electronic device autonomously manages connection establishment, data routing, and protocol translation between the primary and secondary devices. The device self-configures the projection pathway and handles compatibility issues without requiring complex external control systems, simplifying the overall system architecture

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12439320B2Data sharing method, electronic device, and system

Publication Date: 2025.10.07 HUAWEI TECH CO LTD

AI summary

A relay electronic device establishes a first near field wireless connection to a primary electronic device, and receives network connection information of the primary electronic device that is sent by the primary electronic device. The relay electronic device establishes a second near field wireless connection to a secondary electronic device, and receives network connection information of the secondary electronic device that is sent by the secondary electronic device. The relay electronic device determines, based on a first message and a second message, whether a policy for projecting media data of the primary electronic device to the secondary electronic device is directly projecting the media data of the primary electronic device to the secondary electronic device or projecting, by the primary electronic device, the media data of the primary electronic device to the secondary electronic device by using the relay electronic device.