Inter-Device Service Discovery for VR Capability Matching
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Solution Overview
Problem
Existing VR systems face challenges in device discovery and communication for ultra-high-speed data transmission, particularly in scenarios where a smartphone provides rendering and compression services for a lightweight HMD, as conventional relay UE discovery does not meet the requirements of interactive business services like VR.
Innovation Solution
An inter-device communication method involving devices exchanging messages with parameters to announce and determine the provision of interactive business services, processing capabilities, and quality of service to facilitate matched interactions and reliable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional relay UE discovery is used for device discovery, then device discovery can be performed, but it cannot meet the requirements of interactive business services like VR that require ultra-high-speed data transmission
Solution Approach 1:
The patent changes the discovery message parameters from generic relay service indicators to specific interactive business service capability indicators. The first message includes parameters such as service type identifier, processing capability, and QoS capability, transforming the discovery mechanism to support ultra-high-speed data transmission requirements for VR services while maintaining backward compatibility with conventional discovery protocols
2Measurement precision
If devices exchange detailed capability information to ensure service matching, then service provision accuracy improves, but communication overhead and discovery time increase
Solution Approach 1:
The patent applies preliminary action by having devices pre-package their capability information into standardized parameters before discovery. The first message contains pre-structured service type identifier, processing capability, and QoS capability parameters that enable the second device to quickly determine service provision without time-consuming capability negotiation, thus achieving accurate matching with minimal discovery time
3Weight of moving object
If the HMD is made lightweight by transferring functions to smartphone, then HMD weight and size are reduced, but the complexity of inter-device communication and service coordination increases
Solution Approach 1:
The patent applies universality by designing a standardized discovery message format that can serve multiple functions: identifying service type, declaring processing capabilities, specifying QoS requirements, and enabling device selection. This multi-functional message structure simplifies the overall communication system complexity despite the distributed architecture, as a single message exchange accomplishes what would otherwise require multiple coordinated signaling steps
Data Source
AI summary
Embodiments of this application describe an inter-device communication method, a related device, and a system. The method includes a first device sending a first message. The first message includes one or more of the following parameters: a first parameter, a second parameter, and a third parameter. The first parameter is used to indicate that the first message is a message for announcing provision of an interactive business service. The second parameter is used to indicate an identifier corresponding to the interactive business service that can be provided by the first device. The third parameter is used to indicate a processing capability that can be provided by the first device for the interactive business service.

