Patent ID: 8711911

Claim:
A communication apparatus which is capable of communicating based on a first communication system via a transmission channel to which another communication apparatus communicating based on a second communication system is capable of connecting, comprising; an integrated circuit; a housing which includes the integrated circuit; a first connector which is adapted for connecting the transmission channel provided on a first side of the housing; an indicator which is provided on a second side of the housing; wherein the integrated circuit comprises: a transmitter which transmits a first notice including a first notification signal which is rotated by a first phase vector and a second notification signal which is rotated by a second phase vector within a first notification domain; a detector which detects a second notice transmitted from the another communication apparatus within a second notification domain which is different from the first notification domain; and a controller which allocates a data transmission which is transmitted from the communication apparatus and a data transmission which is transmitted from the another communication apparatus for at least one of data transmission domains on the basis of the first notice and the second notice.