Patent ID: 11917690
Assignee: NEC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A communication apparatus comprising:
a memory configured to store instructions; and
one or more processors configured to execute the instructions to:
transmit, to a user equipment (UE), via a higher layer, a configuration for a physical random access channel (PRACH) including a respective PRACH configuration index for each level of coverage enhancement for UEs belonging to a first category, and a PRACH configuration index for UEs belonging to a second category;
receive, from a UE belonging to the first category, a random access preamble based on one PRACH configuration index included in the configuration for the PRACH, corresponding to a level of coverage enhancement of the UE belonging to the first category;
transmit a random access response (RAR) based on the random access preamble; and
configure a common search space (CSS) used by the U E belonging to the first category in receiving a downlink control information (DCI) based on the one PRACH configuration index corresponding to the random access preamble.