Communication control device, communication control method, and storage medium for communication control
A communication ECU corresponding to a communication control device controls communication between a vehicle and an outside thereof. The communication ECU includes a requested bandwidth calculation unit corresponding to a calculation unit that calculates a requested bandwidth, which is a communication bandwidth requested for execution of a specific process in the vehicle, based on at least one of a computing power and a sensing capability of the vehicle. The communication ECU includes a bandwidth request unit corresponding to a request unit that requests a communication management device to secure the requested bandwidth; and a cooperation condition notification unit corresponding to a defining unit that defines a utilization bandwidth, which is a communication bandwidth used by the vehicle, based on a response to a request to secure the requested bandwidth.
1 . A communication control device in a vehicle for controlling communication between the vehicle and a communication management device outside the vehicle, the communication control device comprising a processor configured to cause the communication control device to:
calculate at least two types of requested bandwidth including a required bandwidth required for execution of a specific process in the vehicle and a desired bandwidth greater than the required bandwidth, as a communication bandwidth requested for execution of a specific process in the vehicle, based on a sensing capability of the vehicle;
request the communication management device to secure the requested bandwidth; and
define a utilization bandwidth from the at least two types of the requested bandwidth, which is the communication bandwidth used by the vehicle, based on a response to a request for securing the requested bandwidth;
wherein the processor is configured to:
calculate the requested bandwidth based on a difference between required surrounding environment information that is required for continuous processing of an autonomous travel of the vehicle and acquired surrounding environment information that is acquired by a sensor mounted on the vehicle, the required surrounding environment information corresponding to a relationship between a type of the sensor and a traveling environment of the vehicle; and
define the utilization bandwidth in accordance with the response in which the requested bandwidth is available to be secured from the at least two types of the requested bandwidth.
2 . The communication control device according to claim 1 , wherein
the processor is further configured to acquire change information relating to a change in the requested bandwidth secured by the communication management device, and to change the defined utilization bandwidth based on the change information.
3 . The communication control device according to claim 1 , wherein the processor is configured to calculate the requested bandwidth based on the sensing capability and a computing power of the vehicle.
4 . The communication control device according to claim 1 , wherein the processor is further configured to:
obtain a communication utilization request that is determined based on the difference between the required surrounding environment, which is determined from the relationship between the type of the sensor and the traveling environment of the vehicle, and the acquired surrounding information; and
calculate the requested bandwidth based on the communication utilization request.
5 . A communication control method performed by a processor in a vehicle for controlling communication between the vehicle and a communication management device outside the vehicle, the communication control method comprising:
calculating at least two types of requested bandwidth including a required bandwidth required for execution of a specific process in the vehicle and a desired bandwidth greater than the required bandwidth, as a communication bandwidth requested for execution of a specific process in the vehicle, based on a sensing capability of the vehicle;
requesting the communication management device to secure the requested bandwidth; and
defining a utilization bandwidth from the at least two types of the requested bandwidth, which is the communication bandwidth used by the vehicle, based on a response to a request for securing the requested bandwidth, wherein
in the calculating, the requested bandwidth is calculated based on a difference between required surrounding environment information that is required for continuous processing of an autonomous travel of the vehicle, and acquired surrounding environment information that is acquired by a sensor mounted on the vehicle, the required surrounding environment information corresponding to a relationship between a type of the sensor and a traveling environment of the vehicle, and
in the defining, the utilization bandwidth is defined in accordance with the response in which the requested bandwidth is available to be secured from the at least two types of the requested bandwidth.
6 . A non-transitory computer readable medium storing a communication control program including instructions configured to, when executed by a processor in a vehicle, cause the processor to:
calculate at least two types of requested bandwidth including a required bandwidth required for execution of a specific process in the vehicle and a desired bandwidth greater than the required bandwidth, as a communication bandwidth requested for execution of a specific process in the vehicle, based on a sensing capability of the vehicle;
request a communication management device outside the vehicle to secure the requested bandwidth; and
define a utilization bandwidth from the at least two types of the requested bandwidth, which is the communication bandwidth used by the vehicle, based on a response to a request for securing the requested bandwidth, wherein
the requested bandwidth is calculated based on a difference between required surrounding environment information that is required for continuous processing of an autonomous travel of the vehicle, and acquired surrounding environment information that is acquired by a sensor mounted on the vehicle, the required surrounding environment information corresponding to a relationship between a type of the sensor and a traveling environment of the vehicle, and
the utilization bandwidth is defined in accordance with the response in which the requested bandwidth is available to be secured from the at least two types of the requested bandwidth.