Patent ID: 8139626
Filing Date: 2012-03-20
Classification: H04B,H04J,H04L

Abstract:
1. A communication apparatus for communicating based on a first communication system, via a transmission channel to which a first other communication apparatus communicating based on the first communication system, second other communication apparatuses communicating based on a second communication system, and third other communication apparatuses communicating based on a third communication system are connected, wherein a data transmission domain and a notification domain for notifying a data transmission within the data transmission domain are allocated to the communication apparatus and the first other communication apparatus, the second other communication apparatuses, and the third other communication apparatuses, respectively, the communication apparatus, comprising: a detector which detects a notice transmitted from the first, second and third other communication apparatuses within the notification domain; a transmitter which transmits a notice for the data transmission within the notification domain; and a controller which reallocates the data transmission domain in accordance with the notice transmitted from the first, second and third other communication apparatuses and the notice transmitted from the transmitter.