Vehicular P2P Connection Setup With Pre-Negotiated WiFi Parameters
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Solution Overview
Problem
Existing WiFi peer-to-peer (P2P) connection protocols for mobile devices, especially in vehicles, suffer from high latency due to complex negotiation procedures, which can lead to failed data transfers when vehicles are moving at high speeds and need to exchange large amounts of data.
Innovation Solution
A system utilizing a remote server to streamline parameter negotiation by providing pre-established connection parameters to mobile devices via a cellular network, enabling simultaneous device and service discovery through beacon stuffing to reduce communication latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex negotiation procedures are used to establish P2P connections, then connection parameters can be dynamically optimized, but connection establishment latency increases significantly
Solution Approach 1:
The patent applies preliminary action by pre-negotiating and establishing connection parameters through a cellular network before the actual P2P WiFi connection is needed. The system proactively sets up parameters including channel selection, transmission power, and authentication credentials in advance, so that when vehicles enter proximity for data transfer, the connection can be established immediately without time-consuming negotiation delays.
2Reliability
If multiple sequential communication messages are exchanged during connection establishment, then thorough parameter negotiation occurs, but the number of communication rounds increases latency
Solution Approach 1:
The patent merges multiple separate negotiation messages into a single consolidated parameter transmission. Instead of exchanging separate messages for channel selection, power settings, and authentication, the system combines all these parameters into one pre-negotiated configuration package transmitted through the cellular network, reducing the interaction from multiple sequential rounds to a single efficient exchange.
3Adaptability or versatility
If devices negotiate parameters separately and sequentially, then each parameter can be optimized independently, but overall connection establishment time increases
Solution Approach 1:
The system performs independent parameter optimization in advance through preliminary negotiation via cellular network, then bundles all optimized parameters together for simultaneous transmission. This allows each parameter (channel, power, authentication) to be independently tuned for optimal performance while the bundled delivery ensures they are all applied together, eliminating sequential delays.
Data Source
AI summary
System, methods, and other embodiments described herein relate to improving latency when establishing peer-to-peer connections between devices. In one embodiment, a method includes, responsive to determining that a connection is to be established with at least one remote vehicle by a subject vehicle, acquiring parameters, from a remote server, that define characteristics of the connection. The method includes performing device discovery and service discovery simultaneously by embedding information about available services within a communication for device discovery. The method includes establishing the connection between the subject vehicle and the at least one remote vehicle according to the parameters.