Communication device and system

Abstract

A communication device that includes a communication control section configured to control wireless communication with another communication device that is different from the communication device, in conformity with a designated communication standard, wherein, in a case where a trigger signal received from the other communication device includes unique information that is necessary to identify a mobile object, the communication control section starts a process of estimating a positional relation between the communication device and the other communication device by using a wireless signal communicated between the communication device and the other communication device in conformity with the designated communication standard.

Dependencies are inferred from the claim text.