Dual-Path Terminal Architecture for Stable Low-Delay Wi-Fi P2P
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Solution Overview
Problem
Existing Wi-Fi P2P technologies face challenges in maintaining stable low-delay transmission for delay-sensitive services, such as wireless projection and multi-device interaction, without increasing radio frequency costs.
Innovation Solution
A terminal device with a dual-path architecture, where each path operates on a separate channel, allowing simultaneous monitoring and switching between channels to ensure stable low-delay transmission. The device includes a radio frequency control circuit to manage channel operations and a channel monitoring and switching circuit to monitor and switch between channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If Wi-Fi P2P technology is used for delay-sensitive services, then high-speed data transmission is achieved, but transmission delay becomes unstable and may exceed acceptable thresholds
Solution Approach 1:
The patent implements dynamic channel selection where the terminal device switches between first and second channels based on real-time channel monitoring and service requirements. The radio frequency control circuit dynamically configures the radio frequency circuit to operate on different channels, allowing the system to adapt to changing channel conditions and maintain stable low-delay transmission for delay-sensitive services.
Solution Approach 2:
The patent changes the operating channel parameter by switching between a first channel and a second channel. The channel monitoring and switching circuit monitors both channels and the radio frequency control circuit configures the radio frequency circuit to operate on the appropriate channel based on monitored conditions, thereby optimizing transmission performance and maintaining delay stability.
2Reliability
If dual-path architecture with channel monitoring and switching circuit is implemented, then stable low-delay transmission is achieved, but device complexity increases
Solution Approach 1:
The channel monitoring and switching circuit performs multiple functions: it monitors both the first channel and second channel, determines which channel is suitable for service packet transmission, and controls the switching between channels. The radio frequency control circuit also serves dual purposes by configuring the radio frequency circuit for different channels and managing the overall radio frequency operations, thereby reducing the need for separate dedicated circuits for each function.
3Adaptability or versatility
If radio frequency circuit is configured to operate on multiple channels, then channel flexibility is improved, but radio frequency costs increase
Solution Approach 1:
The patent uses a single radio frequency circuit that is dynamically reconfigured to operate on different channels through the radio frequency control circuit. Instead of having separate radio frequency circuits for each channel, the system dynamically switches the operating channel of the shared radio frequency circuit based on service requirements and channel conditions, thereby maintaining channel flexibility while reducing component quantity.
Data Source
AI summary
A terminal device includes a radio frequency control circuit adapted to configure a first path to operate on a first channel and a second path to operate on a second channel. A baseband receiving circuit is configured to monitor the first channel, and send monitoring information of the first channel to a channel monitoring and switching circuit. The channel monitoring and switching circuit is configured to monitor the second channel, and when a service packet is to be transmitted, establish a connection between the radio frequency circuit and the baseband receiving circuit on the second path, based on the monitoring information of the first channel and monitoring information of the second channel, and send a first notification to the radio frequency control circuit.