Service Discovery via Access Point Mediation
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Solution Overview
Problem
Current wireless communication standards, such as Wi-Fi Direct and Wi-Fi Direct Service, do not efficiently facilitate service discovery and connection between devices connected to the same access point, limiting intercommunication of upper-layer services.
Innovation Solution
A method for service discovery and connection setup that allows devices to exchange service discovery messages through an access point without disconnecting from it, using modified data frames to encapsulate service discovery requests and responses, enabling efficient intercommunication of upper-layer services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If devices use Wi-Fi Direct standard for service discovery, then devices can be discovered and connected, but devices cannot remain connected to access point during discovery process
Solution Approach 1:
The access point serves as an intermediary to forward service discovery messages between devices. Instead of requiring direct device-to-device communication that necessitates disconnection from the access point, the access point mediates the message exchange, allowing devices to maintain their connection to the access point while still enabling service discovery functionality.
2Productivity
If devices disconnect from access point to perform service discovery, then service discovery can be performed, but network connectivity is interrupted
Solution Approach 1:
The system enables continuous network connection while performing service discovery. By using the access point to forward messages, devices can maintain their network connection throughout the service discovery process, eliminating the need to interrupt connectivity for discovery operations.
3Adaptability or versatility
If Wi-Fi Direct Service standard is used for upper-layer service intercommunication, then service compatibility is improved, but service discovery still requires device disconnection from access point
Solution Approach 1:
The access point acts as a mediator that forwards service discovery messages between devices, enabling Wi-Fi Direct Service functionality while devices remain connected to the access point. This eliminates the operational complexity of requiring disconnection for service discovery.
4Productivity
If traditional service discovery method is used, then service discovery can be performed, but it requires random probe message sending on multiple channels
Solution Approach 1:
The access point serves as a centralized intermediary that receives and forwards service discovery requests, eliminating the need for devices to randomly probe multiple channels. This centralizes the discovery process, reducing both time and operational complexity.
Data Source
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AI summary
Embodiments of the present invention provide a service discovery method, and an electronic device, and relate to the field of communications technologies. The service discovery method includes: sending, by a first device by using an access point, a service discovery request to at least one second device connected to the access point, where the service discovery request is used to query, from the at least one second device, a service that the first device requests to query; and receiving, by the first device, a service discovery response sent by the at least one second device, where the service discovery response is a response of the at least one second device to the service discovery request, and the service discovery response includes a service supported by the at least one second device. In the embodiments of the present invention, in a scenario in which multiple electronic devices are all connected to an access point, a service discovery message exchange among the multiple electronic devices can be implemented without disconnecting the electronic devices from the access point, thereby improving service discovery efficiency, and further improving intercommunication efficiency.