Radio resource allocation system and roadside equipment

A radio resource allocation system in which a roadside equipment placed on a road allocates a radio resource to an in-vehicle equipment that exists in a given area where an in-vehicle equipment mounted on a vehicle communicates with another in-vehicle equipment by using the radio resource, the radio resource allocation system comprising:

• the in-vehicle equipment has a location information transmitting unit that transmits location information of the own vehicle, and
• the roadside equipment comprising:
• an area determination unit that determines, based on the location information transmitted by the location information transmitting unit, whether or not the in-vehicle equipment exists in the given area;
• a radio resource allocation unit that allocates the radio resource to the in-vehicle equipment when the area determination unit determines that the in-vehicle equipment exists in the given area;
• and
• a radio resource release unit that releases the radio resource when the area determination unit determines that the in-vehicle equipment allocated the radio resource does not exist in the given area.

A radio resource allocation system in which a roadside equipment placed on a road allocates a radio resource to an in-vehicle equipment that exists in a given area where an in-vehicle equipment mounted on a vehicle communicates with another in-vehicle equipment by using a radio resource, the radio resource allocation system comprising:

• the in-vehicle equipment comprising:
• an in-vehicle equipment detection unit that detects passage of an area end device placed at an end of the given area;
• and
• a passage notifying unit that notifies the roadside equipment of passage information related to the passage of the area end device detected by the in-vehicle equipment detection unit, and
• the roadside equipment comprising:
• an area determination unit that determines, based on the passage information transmitted by the location information transmitting unit, whether or not the in-vehicle equipment exists in the given area;
• a radio resource allocation unit that allocates the radio resource to the in-vehicle equipment when the area determination unit determines that the in-vehicle equipment exists in the given area;
• and
• a radio resource release unit that releases the radio resource when the area determination unit determines that the in-vehicle equipment allocated the radio resource does not exist in the given area.