Patent ID: 11888625
Assignee: LENOVO (BEIJING) LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A base unit comprising:
a transmitter that transmits, to a remote unit, one or multiple downlink transmissions within a channel occupancy time, a first message indicating a first candidate opportunity for transmission of a hybrid automatic repeat request-acknowledgement codebook corresponding to the one or multiple downlink transmissions and a second message indicating a number of allowed opportunities for transmission of the hybrid automatic repeat request-acknowledgement codebook; and
a receiver that attempts to receive the hybrid automatic repeat request-acknowledgement codebook in the first candidate opportunity, and attempts to receive the hybrid automatic repeat request-acknowledgement codebook in a second candidate opportunity in response to the reception of the hybrid automatic repeat request-acknowledgement codebook in the first candidate opportunity being failed and the number of a total candidate opportunities being larger than one.