MOBILE UNIT, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD

The present invention aims to provide a mobile station, a communication system, and a communication method that are capable of efficiently collecting location information of any user. A communicating module 101 receives a positioning request including attribute specifying information from a management center 500, a determining module 104 determines whether measurements of the location are necessary or not based on the attribute specifying information in the received positioning request and the attribute information stored in advance. Then, when the determining module 104 determines that measurements of the location are necessary, a positioning module 105 performs measurements of the location and sends location information thus measured to the management center 500. Accordingly, it is possible to collect the location information of the mobile station that agrees with an attribute that the management center 500 desires and therefore, it is possible to provide an attentive service and the like based on the location information.