Electronic Device Hotspot Routing for DNS-Free Network Access
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Solution Overview
Problem
Portable WiFi hotspots in electronic devices, such as automobile data recorders, lack network access capability, preventing normal network access for connected devices.
Innovation Solution
A data transmission method where a first electronic device requests hotspot information, configures a data network route and a target policy route when the hotspot lacks a DNS parameter, ensuring normal network access and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a portable WiFi hotspot is implemented in an electronic device without network access capability, then data transmission between electronic devices is enabled, but normal network access for connected devices is lost
Solution Approach 1:
The patent segments network routing into multiple independent routes: a data network route for internet access and a target policy route for hotspot data transmission. This segmentation allows each route to handle specific traffic types independently, resolving the contradiction between maintaining network access and enabling data transmission through the hotspot.
Solution Approach 2:
The patent introduces a route selection mechanism as an intermediary that determines which route (data network route or target policy route) should handle specific data traffic. This mediator enables the system to dynamically choose the appropriate path, allowing both network access and hotspot data transmission to coexist without interference.
2Adaptability or versatility
If hotspot information lacks a DNS parameter, then the electronic device can share its data network, but connected devices cannot perform normal network access
Solution Approach 1:
The patent performs preliminary configuration by pre-establishing a data network route that includes proper DNS settings before the hotspot connection is activated. This preliminary action ensures that when connected devices need network access, the routing infrastructure is already in place with the necessary DNS parameters configured, eliminating the network access failure issue.
Solution Approach 2:
The patent changes the routing parameters by configuring different route tables with distinct parameters: the data network route contains complete DNS and gateway parameters for internet access, while the target policy route is configured specifically for hotspot data transmission. This parameter differentiation allows the system to maintain both hotspot sharing and network access functionality simultaneously.
Data Source
AI summary
A data transmission method and a first electronic device are provided. The data transmission method includes: sending a first request to a second electronic device in a case that a first electronic device accesses a network hotspot of the second electronic device; receiving a first response of the network hotspot that is fed back by the second electronic device in response to the first request. The first response includes the hotspot information. The data transmission method further includes when the hotspot information does not include a Domain Name Service (DNS) parameter of the network hotspot, configuring a data network route to transmit first data, and configuring a target policy route to transmit second data. The second data is data transmitted between the first electronic device and the network hotspot.