Wireless communication device, wireless communication system and wireless communications method

Abstract

The present invention relates to wireless communication device, wireless communication system and wireless communications methods, and the use control of multiple frequency bands can be effectively performed.Wireless communication device (1,2) is communicated using multiple frequency bands.Wireless communication device (1) is when carrying out the process of random access, in the first frequency band, the control message comprising identification information is sent to wireless communication device (2), which indicates the second band different from first band.Wireless communication device (2) is in the first frequency band from wireless communication device (1) receiving control message, and the second band represented by identification information of the use by being contained in control message carries out data communication.