ONBOARD COMMUNICATION APPARATUS AND CONTROL METHOD THEREOF

摘要

An onboard communication apparatus that is installed in a vehicle and that performs communication with a roadside communication apparatus that provides various data and perform communication with other onboard communication apparatuses installed in other vehicles includes: a first communication unit that communicates by way of a channel whose the frequency band is fixed, a second communication unit that communicates by way of a channel that differs from the channel that is used in the first communication unit, and a determination unit that determines whether or not communication with the roadside communication apparatus is direct communication that is not relayed by another onboard communication apparatus, wherein, when direct communication with the roadside communication apparatus is not possible, the second communication unit communicates with the roadside communication apparatus by way of another onboard communication apparatus that is communicating with the roadside communication apparatus.

主权项

1. An onboard communication apparatus that is installed in a vehicle and that performs communication with a roadside communication apparatus that provides various data and performs communication with other onboard communication apparatuses that are installed in other vehicles, comprising:
a first communication unit that communicates by way of a channel whose frequency band is fixed; a second communication unit that communicates by way of a channel that differs from the channel used in said first communication unit; and a determination unit that determines whether or not communication with said roadside communication apparatus is direct communication that is not relayed by another onboard communication apparatus; wherein, when direct communication with said roadside communication apparatus is not possible, said second communication unit communicates with said roadside communication apparatus by way of another onboard communication apparatus that is communicating with said roadside communication apparatus.