Neighborhood-Aware Wi-Fi Relay Links Beyond Direct Connection Limits
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Solution Overview
Problem
Existing Wi-Fi direct connection technologies are limited by the maximum number of devices that can be connected, leading to rejected connection requests when the limit is reached, and existing solutions do not effectively handle this limitation.
Innovation Solution
A neighborhood aware network (Wi-Fi NAN)-based method that allows devices to establish a multi-hop Wi-Fi link through relay devices when direct connection is not possible, using broadcast messages to determine target devices and relay devices based on available connections and service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If direct Wi-Fi connection is used, then connection speed and simplicity are improved, but the maximum quantity of connections is limited
Solution Approach 1:
The patent introduces a relay device as an intermediary to enable indirect connections between devices. When device A cannot directly connect to device B due to connection limits, device A can connect to device B through the relay device, effectively expanding the network's connection capacity while maintaining connection simplicity for end users.
2Quantity of substance
If relay device is introduced, then connection capacity is improved, but device complexity increases
Solution Approach 1:
The patent implements automatic relay device selection and connection establishment mechanisms. Devices autonomously discover available relay devices, evaluate connection paths, and establish multi-hop connections without user intervention. This self-service approach hides the underlying network complexity from users while expanding connection capacity.
Solution Approach 2:
The patent employs feedback mechanisms where devices exchange connection status information, available connection counts, and relay capability data through broadcast messages. This feedback enables dynamic path selection and load balancing across multiple relay devices, managing network complexity through information-driven automation.
3Adaptability or versatility
If multi-hop connection is established, then connection availability is improved, but transmission latency increases
Solution Approach 1:
The patent implements dynamic path selection where connection routes are not fixed but can change based on real-time network conditions. When direct connections become available or relay device performance changes, the system dynamically reroutes traffic to optimize latency while maintaining connection availability.
Solution Approach 2:
The patent performs preliminary connection establishment and path validation before actual data transmission. Devices pre-establish relay connections and test path quality, so when data needs to be transmitted, the optimal path is already prepared, minimizing the latency impact of multi-hop routing.
Data Source
AI summary
This application provides network-based device connection methods and devices. One method includes: receiving a first broadcast message from a second device and a second broadcast message from a third device, in response to determining that a quantity of available Wi-Fi connections of the second device is not greater than zero, and the second device is not connected to the first device through Wi-Fi, determining, based on connected device information of the second device and available Wi-Fi connection information of the third device, that the third device is connected to the second device through Wi-Fi and that a quantity of available Wi-Fi connections of the third device is greater than zero, and establishing a Wi-Fi link between the first device and the third device for the third device to forward the first packet received from the first device to the second device through a Wi-Fi link between the third device and the second device.