Method and apparatus for multi-network communication in vehicular networks

摘要

Wireless network data router for a vehicle, and operating method thereof, comprising: a multi-connection interface for wireless access in vehicular environments, herewith WAVE; a wireless local area network, herewith Wi-Fi, interface; a mobile network data interface; a downlink data connection for the vehicle and/or users in the vehicle and its vicinity; a data processing unit for routing data between said interfaces; wherein the data processing unit is configured to: calculate a score for each reachable network on the WAVE, Wi-Fi and mobile network interfaces; switch the uplink connection of the wireless network data router to the reachable network with the best score. Also a wireless network data router for vehicles for connecting vehicles to the Internet through a multi-network device, said router being a mobile router suitable to form a mesh network of connected vehicles, wherein the router is arranged for using parked cars for redistributing Wi-Fi signal from fixed hotspots.

主权项

1. A mobile wireless network data router configured to connect vehicles to an Internet infrastructure through a multi-technology network device;
wherein the router is configured to form a mesh network of vehicles connected to the infrastructure, wherein the router is configured to redistribute a Wi-Fi signal from a fixed hotspot among a plurality of parked vehicles, and wherein a expected contact time between the network data router of a vehicle i and a reachable network j of another vehicle or Wi-Fi hotspot or roadside unit (“RSU”), is derived from a formula comprising:-(a·c+b·d)±(c2+d2)·R2+(b·c-a·d)2c2+d2wherein,
a=xj(0)−xi(0) b=yj(0)−yi(0) c=vj·cos(θj)−vi·cos(θi) d=vj·sin(θj)−vi·sin(θi)and further wherein x and y are, respectively, the positions of the vehicles or Wi-Fi hotspots or RSUs in a Cartesian coordinate system, v represents a speed of vehicles and is equal to 0 for Wi-Fi hotspots or RSUs, wherein 8 is the angle formed with the road in which the vehicle is traveling, and R is the radio communication range of Wireless Access in Vehicular Environments (“WAVE”) or Wi-Fi connections.