Patent ID: 11917681
Assignee: SONY GROUP CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A wireless communication method performed by a base station (BS), the method comprising:
setting a first resource and at least one second resource for use by a user equipment (UE) to transmit an uplink signal of a RACH procedure to the BS, wherein
the first resource is selected from a set of resources set by information in an RRC layer,
the at least one second resource is designated by the BS for use by the wireless communication device in a case when the UE determines that the first resource is not available, the at least one second resource being designated by downlink information in a physical layer,
the downlink information in the physical layer being one of:
a notice of the one or more second resources in a channel occupancy time (COT), the notice being included in downlink control information (DCI), or
a slot format indicator (SFI) included in the DCI that identifies the one or more second resources, and

the first resource occurs before the at least one second resource; and
receiving the uplink signal of the RACH procedure from the UE via the at least one second resource upon the UE determining that that the first resource is not available.