Multi-Protocol Wireless Link Establishment in Vehicles
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Solution Overview
Problem
Modern vehicles often fail to establish a second short-range wireless communication link using a different protocol due to existing connections, as some protocols lack mechanisms for auto-verification on subsequent connections, necessitating user input which is inconvenient.
Innovation Solution
A method is introduced to establish a first short-range wireless communication link between a vehicle and a mobile device, followed by using the first link to establish a second link using a different protocol, enabling out-of-band communication without requiring user input for verification, such as switching from Wi-Fi to Wi-Fi Direct or Bluetooth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a vehicle establishes a first short range wireless communication link using one protocol, then reliable communication is achieved, but the vehicle cannot establish a second link using a different protocol due to the existing connection
Solution Approach 1:
The system performs preliminary actions by establishing a first wireless link using one protocol (e.g., Bluetooth) before attempting to establish a second link using a different protocol (e.g., Wi-Fi). The first link is set up in advance to facilitate the subsequent establishment of the second link, allowing the system to overcome the limitation of single-protocol connections and enable multi-protocol adaptability.
2Ease of operation
If a vehicle uses a discovery mode to establish wireless connections, then multiple protocol support is enabled, but user verification is required which reduces convenience
Solution Approach 1:
The system uses an intermediary approach where the first established wireless link serves as a mediator to facilitate the setup of the second link. Instead of requiring user verification for each new connection, the existing trusted link acts as an intermediary that enables automatic verification and establishment of subsequent links, thereby improving ease of operation while maintaining reliability through the trusted intermediary connection.
3Adaptability or versatility
If a vehicle attempts to establish a second wireless link while a first link exists, then protocol versatility is improved, but connection stability deteriorates due to potential conflicts
Solution Approach 1:
The system segments the wireless communication into separate, independent links using different protocols. Instead of attempting to manage multiple protocols within a single connection framework, the patent creates distinct segmented links (e.g., Bluetooth link for authentication, Wi-Fi link for data transfer), allowing each protocol to operate independently and stably without interfering with the other, thus maintaining connection stability while achieving protocol versatility.
Data Source
AI summary
A mobile communication system and a method of establishing a wireless connection between a vehicle and at least one mobile device. The method includes: establishing a first short range wireless communication (SRWC) link between the vehicle and the mobile device; and using the first SRWC link to establish a second SRWC link between the vehicle and the mobile device, wherein the first and second SRWC links use different SRWC protocols.