Communication system including correlation information correlating area and transmission resource

A communication method for a mobile communication apparatus, comprising:

• receiving, as Vehicle Information and Communication Systems (VICS) information, correlation information correlating area and transmission resource;
• storing the received correlation information;
• deducing in which area from among a plurality of areas the mobile communication apparatus is located;
• selecting a transmission resource correlated, in the stored correlation information, with the area deduced at the deducing;
• and
• transmitting data to a second mobile communication apparatus by using the transmission resource selected at the selecting,
• wherein if an autonomously managed area in which the data is directly transmitted between the mobile communication apparatus and the second mobile communication apparatus and a centrally managed area in which data transmission by the mobile communication apparatus and the second mobile communication apparatus is controlled by a base station are present,
• storing attribute information indicating for each area from among the plurality of areas, whether the area is the autonomously managed area or the centrally managed area, and
• determining, based on the attribute information, whether the deduced area is the autonomously managed area or the centrally managed area, and upon determining the deduced area to be the autonomously managed area, selecting the transmission resource correlated with the deduced area, and upon determining the deduced area to be the centrally managed area, selecting a transmission resource reported by the base station.

A communication system comprising a plurality of mobile communication apparatuses that directly transmit data to one another, wherein

• each mobile communication apparatus of the plurality of mobile communication apparatuses includes:
• a receiving unit that receives, as Vehicle Information and Communication Systems (VICS) information, correlation information correlating area and transmission resource;
• a storage unit that stores therein the correlation information received by the receiving unit;
• an area deducing unit that deduces in which area from among a plurality of areas a mobile communication apparatus is located;
• a selecting unit that selects the transmission resource correlated, in the stored correlation information, with the area deduced by the area deducing unit;
• and
• a transmitter that, using the transmission resource selected by the selecting unit, transmits data to another mobile communication apparatus,
• wherein if an autonomously managed area in which the data is directly transmitted between the mobile communication apparatus and the other mobile communication apparatus and a centrally managed area in which data transmission by the mobile communication apparatus and the other mobile communication apparatus is controlled by a base station are present,
• the storage unit stores therein attribute information indicating for each area from among the plurality of areas, whether the area is the autonomously managed area or the centrally managed area, and
• the selecting unit, based on the attribute information stored by the storage unit, determines whether the deduced area is the autonomously managed area or the centrally managed area, and upon determining the deduced area to be the autonomously managed area, selects the transmission resource correlated with the deduced area, and upon determining the deduced area to be the centrally managed area, selects a transmission resource reported by the base station.