VEHICULAR COMMUNICATIONS USING A SCALABLE AD HOC GEOGRAPHIC ROUTING PROTOCOL
First Claim
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1. A method comprising:
- receiving, by a first communications device, a broadcasted message comprising an indication of a location of a second communications device and a description of a region of intended reception of the message; and
retransmitting, by the first communications device, the message based on a distance from the second communications device to a center point of the region of intended reception of the message.
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Abstract
Vehicle-to-vehicle and vehicle-to-infrastructure communications are accomplished via a scalable ad hoc geographic routing protocol. As vehicles move along roadways, they can query other vehicles and entities for information. Responses to queries can be used to determine information such as traffic conditions, a retail store sale, that a restaurant has tables available, and/or that parking spaces are available, for example. Businesses, vehicles, and other entities along roadways can geocast pertinent information to vehicles passing by. Vehicles can cache information as it is received.
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Citations
20 Claims
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1. A method comprising:
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receiving, by a first communications device, a broadcasted message comprising an indication of a location of a second communications device and a description of a region of intended reception of the message; and retransmitting, by the first communications device, the message based on a distance from the second communications device to a center point of the region of intended reception of the message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A first communications device comprising:
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a processor; and memory coupled to the processor, the memory comprising executable instructions that when executed by the processor cause the processor to effectuate operations comprising; receiving a broadcasted message comprising an indication of a location of a second communications device and a description of a region of intended reception of the message; and retransmitting the message based on a distance from the second communications device to a center point of the region of intended reception of the message. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A computer-readable storage medium comprising executable instructions that cause a processor executing the instructions to effectuate operations comprising:
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receiving a plurality of messages, wherein each message of the plurality of messages comprises an indication of a location of a sending device and a description of a description of a region of intended reception of the message; and retransmitting a message of the plurality of messages based on a determination that a distance from the location of the first communications device to the a center point of the region of intended reception is greater than a distance from the location of the sending device of the message of the plurality of messages. - View Dependent Claims (19, 20)
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Specification