Onboard apparatus, communication system and communication method
First Claim
1. An onboard apparatus which is installed in each of a plurality of vehicles so as to perform communication between vehicles and communication with a wireless station, comprising:
- a receiver that receives from neighboring onboard apparatuses of said onboard apparatus, surround information that indicates the presence of intra-area onboard apparatuses in a communication area communicable with said wireless station; and
,a processor that, upon receiving communication data when its own apparatus is outside said communication area, controls transmission of said communication data addressed to said wireless station, in accordance with said surround information.
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Abstract
An onboard apparatus according to the present invention is an onboard apparatus which is installed in each of a plurality of vehicles so as to perform communication between vehicles and communication with a wireless station, comprising: a receiver that receives from neighboring onboard apparatuses, surround information that indicates the presence of onboard apparatuses in a communication area communicable with the wireless station; and, a processor that, upon receiving communication data, transmits the communication data addressed to the wireless station in accordance with the surround information.
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Citations
11 Claims
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1. An onboard apparatus which is installed in each of a plurality of vehicles so as to perform communication between vehicles and communication with a wireless station, comprising:
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a receiver that receives from neighboring onboard apparatuses of said onboard apparatus, surround information that indicates the presence of intra-area onboard apparatuses in a communication area communicable with said wireless station; and
,a processor that, upon receiving communication data when its own apparatus is outside said communication area, controls transmission of said communication data addressed to said wireless station, in accordance with said surround information. - View Dependent Claims (2, 3, 4, 5)
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6. A communication system including a plurality of onboard apparatuses which are installed in each of a plurality of vehicles and a wireless station that performs communication with said onboard apparatuses, wherein
a predetermined onboard apparatus from among said plurality of onboard apparatuses transmits surround information that indicates the presence of an intra-area onboard apparatus in a communication area communicable with said wireless station, a specific onboard apparatus from among said plurality of onboard apparatuses includes: -
a receiver that receives said surround information from said predetermined onboard apparatus; and
,a processor that, upon receiving communication data when its own apparatus is outside said communication area, controls transmission of said communication data addressed to said wireless station, in accordance with said surround information, said wireless station transmits said communication data transmitted from said processor to said onboard apparatuses residing in said communication area, and, said onboard apparatuses residing in said communication area receive said communication data from said specific onboard apparatus. - View Dependent Claims (7)
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8. A communication method for an onboard apparatus which is installed in each of a plurality of vehicles so as to perform communication between vehicles and communication with a wireless station, comprising:
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a reception step of receiving from neighboring onboard apparatuses of said onboard apparatus, surround information that indicates the presence of intra-area onboard apparatuses in a communication area communicable with said wireless station; and
,a processing step of, upon receiving communication data when its own apparatus is outside said communication area, controlling transmission of said communication data addressed to said wireless station, in accordance with said surround information. - View Dependent Claims (9)
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10. A communication method for a communication system including a plurality of onboard apparatuses which are installed in each of a plurality of vehicles and a wireless station performing communication with said onboard apparatuses, comprising:
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a first transmitting step in which a predetermined onboard apparatus from among said plurality of onboard apparatuses transmits surround information that indicates the presence of an intra-area onboard apparatus in a communication area communicable with said wireless station; a first receiving step in which a specific onboard apparatus from among said plurality of onboard apparatuses receives said surround information from said predetermined onboard apparatus; a processing step in which said specific onboard apparatus, upon receiving communication data when its own apparatus is outside said communication area, controls transmission of said communication data addressed to said wireless station, in accordance with said surround information; a second transmitting step in which said wireless station transmits said communication data transmitted from said specific onboard apparatus to said onboard apparatuses residing in said communication area; and
,a second receiving step in which said onboard apparatuses residing in said communication area receive said communication data from said specific onboard apparatus. - View Dependent Claims (11)
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Specification