Patent ID: 11877272
Assignee: FUJITSU LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A base station device comprising:
a processor that executes a process including
generating a first data channel,
generating a control channel that includes allocation information on the first data channel, group identifying information for identifying a group of data channel and control information that instructs to collectively feed back an acknowledgement related to the first data channel together with an acknowledgement related to a second data channel that belongs to a same group as the first data channel and that is transmitted after the first data channel, and
judging whether a frequency band for which a license is not needed to use in wireless communication is being used by another device; and

a transmitter that transmits, when it is judged that the frequency band is not being used, the first data channel and the control channel by using the frequency band.