Communication-data relaying method and inter-vehicle communication system
First Claim
1. A method for relaying communication data from a source terminal to a destination terminal in a particular area via at least one intermediary terminal, the method comprising:
- repeating relaying the communication data between two of the terminals such that the communication data is relayed in a first particular direction from a first terminal to a second terminal, until the communication data reaches an intermediary terminal mounted in a vehicle in the particular area; and
relaying the communication data in any direction, after the communication data reaches the intermediary terminal in the particular area;
wherein the communication data reaches the destination terminal.
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Accused Products
Abstract
Communication data is relayed to vehicle-mounted terminals in vehicles traveling in a particular area via vehicle-mounted terminals in vehicles. Each of the vehicle-mounted terminals functioning as intermediary terminals relays communication data to vehicle-mounted terminals in vehicles existing in a particular direction only until the communication data reaches the vehicle-mounted terminal in the vehicle closest to the target position, i.e., the center of the particular area. The communication data having reached the vehicle-mounted terminal in the vehicle closest to the target position is relayed to surrounding vehicle-mounted terminals through broadcasting.
27 Citations
22 Claims
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1. A method for relaying communication data from a source terminal to a destination terminal in a particular area via at least one intermediary terminal, the method comprising:
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repeating relaying the communication data between two of the terminals such that the communication data is relayed in a first particular direction from a first terminal to a second terminal, until the communication data reaches an intermediary terminal mounted in a vehicle in the particular area; and
relaying the communication data in any direction, after the communication data reaches the intermediary terminal in the particular area;
wherein the communication data reaches the destination terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An inter-vehicle communication system for sending communication data from a source terminal to a destination terminal in a particular area via at least one intermediary terminal mounted in a vehicle, each intermediary terminal comprising:
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a first receiving segment for receiving communication data sent from the source terminal or another of the intermediary terminals;
a determining segment for determining whether or not a condition is satisfied, the condition indicating that the intermediary terminal itself is in the particular area or that the communication data is received from another intermediary terminal in the particular area;
an intermediary target setting segment for identifying another intermediary terminal in any direction or the destination terminal when the determining segment determines that the condition is satisfied or for identifying another intermediary terminal in a first particular direction or the destination terminal when the determining segment determines that the condition is not satisfied; and
a first sending segment for sending the communication data to the intermediary terminal or the destination terminal as determined by the intermediary target setting segment. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method for relaying a response message from a destination terminal to a source terminal via at least one intermediary terminal, the method comprising:
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relaying communication data from a source terminal to a destination terminal;
the destination terminal generating a response message; and
repeatedly relaying the response message between two of the terminals such that the response message is relayed in a particular direction from a first terminal to a second terminal until the response message reaches an intermediary terminal near the source terminal in a vehicle traveling along a planned driving route and, after the response message reaches the intermediary terminal near the source terminal, the response message is relayed in any direction;
wherein the response message reaches the source vehicle. - View Dependent Claims (22)
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Specification