Wireless Projection Channel Establishment Across Technology Stacks
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Solution Overview
Problem
Current wireless projection technologies, such as Wi-Fi Miracast and DLNA, only support transmission based on Internet Protocol (IP) technology stacks, limiting compatibility with devices that do not support IP technology stacks and preventing signaling or data transmission between source and sink devices.
Innovation Solution
A method and apparatus that allow source or sink devices to establish transmission channels based on different technology stack types, enabling flexible signaling and data transmission for various applications, such as video projection, by determining the appropriate technology stack type through indication information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless projection technologies use IP technology stack only, then transmission reliability is improved, but device compatibility deteriorates
Solution Approach 1:
The patent implements multi-functionality by enabling the wireless projection system to support multiple technology stack types (IP-based and non-IP-based) within the same system architecture. The source device and sink device can selectively establish transmission channels based on different technology stacks, allowing the system to adapt to various device types while maintaining reliable transmission through protocol selection and negotiation mechanisms
2Adaptability or versatility
If wireless projection technologies support multiple technology stack types, then device compatibility is improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the transmission channel establishment process into distinct phases: capability advertisement phase (where devices indicate supported technology stacks), capability matching phase (where compatible stacks are identified), and channel establishment phase (where the selected stack is used to create the transmission channel). This segmented approach manages complexity by handling different technology stacks in separate, organized steps rather than simultaneously
Solution Approach 2:
The patent uses capability indication information as an intermediary mechanism that facilitates compatibility matching between source and sink devices. This intermediary data structure allows devices to advertise their supported technology stacks without requiring direct complex interaction, enabling the system to match compatible pairs efficiently while maintaining manageable system complexity
3Speed
If transmission channels are established without technology stack matching, then connection speed is improved, but transmission reliability deteriorates
Solution Approach 1:
The patent implements preliminary action by performing technology stack capability matching during the device discovery and connection establishment phase, before actual data transmission begins. The capability indication information is exchanged and processed in advance to determine compatible technology stacks, ensuring that the correct transmission protocol is selected before data flow starts, thus maintaining both fast connection establishment and reliable transmission
Data Source
AI summary
This application relates to transmission methods and apparatuses as well as related non-transitory computer-readable media. An example method includes receiving first indication information, where the first indication information indicates a first technology stack type corresponding to a first application. The method further includes establishing, based on the first indication information, a transmission channel that is based on the first technology stack type. The method further includes sending or receiving at least one of signaling or data of the first application through the transmission channel.