ASP Session Formation in Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face limitations in forming application service platform (ASP) sessions due to lack of backward compatibility, discovery methods, and consideration for different user equipment types, particularly in Wi-Fi Direct environments where compatibility and consistency across devices are challenging.
Innovation Solution
A method and device for forming an ASP session in a wireless communication system that involves performing discovery and connection through various interfaces, including Wi-Fi Direct, using a seeker device and an advertiser device, with a Backward Compatibility Module to facilitate compatibility between different device types and interfaces, enabling service discovery and connection for services like send, play, display, and print.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Wi-Fi Direct interface is used for device connection, then direct device-to-device communication is enabled, but compatibility and consistency across different devices are difficult to ensure
Solution Approach 1:
The patent implements a dual-interface architecture where the ASP (Application Service Platform) can operate through multiple interfaces including both Wi-Fi Direct and traditional WLAN infrastructure modes. This multi-functionality allows the system to adapt to different device types and network environments, ensuring compatibility across diverse devices while maintaining reliable service delivery through the standardized ASP framework
2Reliability
If legacy Wi-Fi network with AP is used, then devices can access Internet and services, but transmission speed is slow and transmission distance is limited
Solution Approach 1:
The patent segments the communication function into two distinct modes: infrastructure mode for Internet access and P2P mode for direct high-speed communication. This segmentation allows devices to use the appropriate mode based on their needs - legacy AP infrastructure for reliable service access and Wi-Fi Direct P2P for high-speed direct communication, thereby resolving the contradiction between service reliability and transmission speed
3Reliability
If DLS service is implemented in QBSS, then QoS is supported, but non-AP STAs cannot use DLS service in current commercialized environments
Solution Approach 1:
The patent introduces the ASP (Application Service Platform) as an intermediary layer that enables DLS-like functionality across diverse devices. The ASP provides standardized service discovery, connection management, and data transfer mechanisms that work consistently whether devices are connected through infrastructure mode or P2P mode, thereby achieving both QoS support and broad device compatibility without requiring AP support
Data Source
AI summary
The present specification may provide a method for forming, by a searcher terminal, an application service platform session with an advertiser terminal in a wireless communication system. The method for forming an application service platform session may comprise the steps of: performing discovery for the advertiser terminal and a first service; and forming an ASP session for the first service by performing connection with the advertiser terminal on the basis of a result of the performed discovery, wherein the discovery and the connection may be performed through at least one of multiple interfaces supported by application service platforms of the searcher terminal and the advertiser terminal when the searcher terminal and the advertiser terminal are first type terminals, and the discovery and the connection may be performed through a Wi-Fi direct interface when one of the searcher terminal and the advertiser terminal is the first type terminal and the other is a second type terminal.