Wireless communication base station, wireless communication device and wireless communication system
It is possible to minimize the amount of signaling relating to the settings of component carriers in a carrier aggregation by dividing difference information between the setting information included in the component carrier set being used.
Abstract
Disclosed is a wireless communication base station that is provided with a receiving unit for receiving information transmitted by a wireless communication device, and a component carrier determination unit for determining a component carrier set for use, when it is determined to communicate with a wireless communication device using a component carrier set that includes a first component carrier used as a reference carrier and at least one second component carrier used simultaneously with the first component carrier, or when it is determined to change the carrier configuration of said component carrier set during communication with a wireless communication device using a component carrier set. The base station is further provided with a difference information creation unit for creating difference information, which is difference information between the setting information included in the component carrier set being used, specifically, between the setting information of the first component carrier and the setting information of the second component carrier, which acts as a reference. Thus, it is possible to minimize the amount of signaling relating to the settings of component carriers in a carrier aggregation.