Patent ID: 11968155
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
a controller configured to:
obtain, from a base station first information on multiple downlink (DL) bandwidth parts (BWPs) of a serving cell, second information on a BWP inactivity timer value, and third information on a bitmap indicating a subset of the multiple DL BWPs to which the BWP inactivity timer value is commonly applied,
receive, from the base station via the transceiver, a first physical downlink control channel (PDCCH) related to a first active DL BWP among the subset of the multiple DL BWPs,
identify whether there is an ongoing random access procedure associated with the first active DL BWP, and
in case that there is no ongoing random access procedure associated with the first active DL BWP, start a first BWP inactivity timer for the first active DL BWP according to the BWP inactivity timer value,
wherein each BWP inactivity timer for at least one DL BWP included in the subset of the multiple DL BWPs is independently maintained.