IP Library Granted Patent US 12,464,601
Granted Patent B2
US 12,464,601 · App. 18/402,264 · Granted Nov 4, 2025

Method and apparatus for monitoring control information in wireless communication system

Inventors: Taehyoung Kim (Gyeonggi-do, KR); Jinkyu Kang (Gyeonggi-do, KR); Youngbum Kim (Gyeonggi-do, KR); Seunghoon Choi (Gyeonggi-do, KR)
Assignee: Samsung Electronics Co., Ltd.
H04W80/08H04L5/0092H04W24/08H04W72/0446H04W72/23
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Quick Facts
Patent No.
US 12,464,601
App. No.
18/402,264
Granted
Nov 4, 2025
Kind
B2
Abstract

Disclosed is a method performed by a terminal in a wireless communication system, including receiving, from a base station, at least one parameter for a search space, monitoring, on the search space, downlink control information (DCI) related with power saving, the search space being identified based on the at least one parameter, and the DCI related with the power saving including a wake up signal indicating whether to monitor a physical downlink control channel (PDCCH) and a bandwidth part (BWP) indication related with the wake up signal, and performing a PDCCH monitoring based on the wake up signal and the BWP indication included in the DCI related with the power saving.

Claims (50)

1 . A method performed by a terminal in a wireless communication system, the method comprising:

receiving, from a base station, at least one parameter for a search space to monitor downlink control information (DCI) related with power saving;

monitoring, on the search space, the DCI related with the power saving, the search space being identified based on the at least one parameter, and the DCI related with the power saving including a wake up indicator; and

in case that the DCI related with the power saving is detected, performing a physical downlink control channel (PDCCH) monitoring based on a value of the wake up indicator included in the DCI related with the power saving.

2 . The method of claim 1 ,

wherein a cyclic redundancy check (CRC) of the DCI related with the power saving is scrambled by a radio network temporary identifier (RNTI) for the power saving.

3 . The method of claim 1 ,

wherein the search space is configured as a common search space.

4 . The method of claim 1 ,

wherein the PDCCH monitoring is performed on a configured period.

5 . A method performed by a base station in a wireless communication system, the method comprising:

transmitting, to a terminal, at least one parameter for a search space to monitor downlink control information (DCI) related with power saving; and

transmitting, on the search space, the DCI related with the power saving, the search space being identified based on the at least one parameter, and the DCI related with the power saving including a wake up indicator,

wherein in case that the DCI related with the power saving is detected, a physical downlink control channel (PDCCH) monitoring is performed at the terminal based on the wake up indicator included in the DCI related with the power saving.

6 . The method of claim 5 ,

wherein a cyclic redundancy check (CRC) of the DCI related with the power saving is scrambled by a radio network temporary identifier (RNTI) for the power saving.

7 . The method of claim 5 ,

wherein the search space is configured as a common search space.

8 . The method of claim 5 ,

wherein the PDCCH monitoring is performed on a configured period.

9 . A terminal in a wireless communication system, the terminal comprising:

a transceiver; and

a processor coupled with the transceiver and configured to:

receive, from a base station, at least one parameter for a search space to monitor downlink control information (DCI) related with power saving,

monitor, on the search space, the DCI related with the power saving, the search space being identified based on the at least one parameter, and the DCI related with the power saving including a wake up indicator, and

in case that the DCI related with the power saving is detected, perform a physical downlink control channel (PDCCH) monitoring based on a value of the wake up indicator included in the DCI related with the power saving.

10 . The terminal of claim 9 ,

wherein a cyclic redundancy check (CRC) of the DCI related with the power saving is scrambled by a radio network temporary identifier (RNTI) for the power saving.

11 . The terminal of claim 9 ,

wherein the search space is configured as a common search space.

12 . The terminal of claim 9 ,

wherein the PDCCH monitoring is performed on a configured period.

13 . A base station in a wireless communication system, the base station comprising:

a transceiver; and

a processor coupled with the transceiver and configured to:

transmit, to a terminal, at least one parameter for a search space to monitor downlink control information (DCI) related with power saving, and

transmit, on the search space, the DCI related with the power saving, the search space being identified based on the at least one parameter, and the DCI related with the power saving including a wake up indicator,

wherein in case that the DCI related with the power saving is detected, a physical downlink control channel (PDCCH) monitoring is performed at the terminal based on the wake up indicator included in the DCI related with the power saving.

14 . The base station of claim 13 ,

wherein a cyclic redundancy check (CRC) of the DCI related with the power saving is scrambled by a radio network temporary identifier (RNTI) for the power saving.

15 . The base station of claim 13 ,

wherein the search space is configured as a common search space.

16 . The base station of claim 13 ,

wherein the PDCCH monitoring is performed on a configured period.

17 . The method of claim 1 , further comprising:

receiving an offset indicating a time when the terminal starts monitoring the PDCCH for reception of the DCI related with the power saving.

18 . The method of claim 5 , further comprising:

transmitting an offset indicating a time when the terminal starts monitoring the PDCCH for reception of the DCI related with the power saving.

19 . The terminal of claim 9 , wherein the processor is further configured to receive an offset indicating a time when the terminal starts monitoring the PDCCH for reception of the DCI related with the power saving.

20 . The base station of claim 13 , wherein the processor is further configured to transmit an offset indicating a time when the terminal starts monitoring the PDCCH for reception of the DCI related with the power saving.

Priority Claims (1)
KR 10-2019-0038888 · Apr 3, 2019 · national
Continuity (3)
Continuation 17707039 · Mar 29, 2022
Continuation 16838741 · Apr 2, 2020
Related Publication 20240163970A1 · May 16, 2024
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