Apparatus and method for intelligent channel switching to support V2X communication
First Claim
1. An onboard communication apparatus disposed in a subject vehicle communicating with other vehicles and non-vehicles, the apparatus comprising:
- a navigation module monitoring a vehicle speed of the subject vehicle;
a radio performing dual way communication with the other vehicles and the non-vehicles, wherein the radio communicates with the other vehicles via a first channel, and with the non-vehicles via a second channel; and
a communication module controlling the radio based on the vehicle speed monitored by the navigation module, whereinthe communication module controls the radio in a first mode to perform communication via the first channel when the vehicle speed is greater than or equal to a vehicular speed threshold, andthe communication module controls the radio in a second mode to perform communication via the first channel and the second channel when the vehicle speed is less than the vehicular speed threshold, and, in the second mode, the communication module switches the radio between the first channel and the second channel at a preset interval.
1 Assignment
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Accused Products
Abstract
An onboard equipment disposed in a subject vehicle may communicate with one or more other vehicles and/or one or more stationary road side terminals. The onboard equipment may include a radio and a communication module. The radio may communicate with the other vehicles via a vehicle channel, and with the stationary roadside terminals via a control channel and a service channel. The communication module may control the radio in a first mode when the vehicle speed is greater than a threshold or in a second mode when the vehicle speed is less than the threshold. In the first mode, the communication module sets the radio to the vehicle channel. In the second mode, the communication module switches the radio between the control channel and the vehicle channel or between the service channel and the vehicle channel based on a predetermined condition.
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Citations
19 Claims
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1. An onboard communication apparatus disposed in a subject vehicle communicating with other vehicles and non-vehicles, the apparatus comprising:
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a navigation module monitoring a vehicle speed of the subject vehicle; a radio performing dual way communication with the other vehicles and the non-vehicles, wherein the radio communicates with the other vehicles via a first channel, and with the non-vehicles via a second channel; and a communication module controlling the radio based on the vehicle speed monitored by the navigation module, wherein the communication module controls the radio in a first mode to perform communication via the first channel when the vehicle speed is greater than or equal to a vehicular speed threshold, and the communication module controls the radio in a second mode to perform communication via the first channel and the second channel when the vehicle speed is less than the vehicular speed threshold, and, in the second mode, the communication module switches the radio between the first channel and the second channel at a preset interval. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An onboard equipment disposed in a subject vehicle communicating with other vehicles and stationary roadside terminals, the onboard equipment comprising:
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a speed detector monitoring a vehicle speed of the subject vehicle; a radio performing dual way communication with the other vehicles and the stationary roadside terminals located within a communication range of the subject vehicle, wherein the radio communicates with the other vehicles via a vehicle channel, and with the stationary roadside terminals via a control channel and a service channel, the control channel is operable during a first communication interval, the service channel is operable during a second communication interval, the radio is configured to alternate between the first communication interval and the second communication interval; and a communication module controlling the radio based on the vehicle speed detected by the speed detector, wherein the communication module controls the radio in a first mode or in a second mode, in the first mode, the communication module sets the radio to the vehicle channel, the radio is in the first mode when the vehicle speed is greater than or equal to a preset threshold, and in the second mode, the communication module switches the radio between the control channel and the vehicle channel or between the service channel and the vehicle channel based on a predetermined condition, the radio is in the second mode when the vehicle speed is less than the preset threshold. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for performing vehicle to vehicle communication and vehicle to infrastructure communication by a subject vehicle having an onboard equipment, the method comprising:
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monitoring, by a speed detector, a vehicle speed of the subject vehicle; controlling, by the onboard equipment, a radio in a first mode when the vehicle speed is equal to or greater than a vehicular speed threshold, wherein, in the first mode, the radio is set to a vehicle channel to communicate with one or more other vehicles, and the radio is disposed in the subject vehicle; controlling, by the onboard equipment, the radio in a second mode when the vehicle speed is less than the vehicular speed threshold for communicating with the vehicles or one or more stationary roadside terminals, wherein, in the second mode, the onboard equipment switches the radio between a control channel and the vehicle channel or between a service channel and the vehicle channel based on a predefined condition; in the second mode, setting the radio to the control channel during a first communication interval and the vehicle channel during a second communication interval, wherein the radio is configured to alternate between the first communication interval and the second communication interval; and in the second mode and after the predefined condition is met, setting the radio to the service channel during the second communication interval and the vehicle channel during the first communication interval. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification