Control apparatus, communication system, control method and program

A communication system comprising:

• a signal transfer device configured to transfer a packet:
• and a control device,
• wherein the control device includes:
• a scheme determiner determining whether the packet to which an identifier of a priority is assigned is transmitted in conformity with a grant-free scheme,
• a time estimator estimating a time in which a traffic volume of the packet is equal to or more than a threshold, and
• a transfer controller generating a control signal of a signal transfer device so that the signal transfer device transfers a packet that has arrived at the signal transfer device in the estimated time in accordance with the identifier of the priority.

A control method executed by a control device, the control method comprising:

• determining whether a packet to which an identifier of a priority is assigned is transmitted in conformity with a grant-free scheme;
• estimating a time in which a traffic volume of the packet is equal to or more than a threshold;
• and
• generating a control signal of a signal transfer device so that the signal transfer device transfers a packet that has arrived at the signal transfer device in the estimated time in accordance with the identifier of the priority.