Granted Patent B2

US 12,557,116 · App. 18/033,301 · Granted Feb 17, 2026

Inventors: Chia-Hsin Lai (Taipei, TW); Hsin-Hsi Tsai (Taipei, TW); Hai-Han Wang (Taipei, TW); Mei-Ju Shih (Taipei, TW); Chia-Hao Yu (Taipei, TW)

Assignee: SHARP KABUSHIKI KAISHA

H04W72/232H04L27/26025H04W76/20

Abstract

Claims (34)

1 . A method performed by a user equipment (UE) for power saving, the method comprising:

receiving a configuration indicating a plurality of search space set groups (SSSGs) that includes a first SSSG and one or more second SSSGs, the first SSSG being associated with a first SSSG identifier (ID);

receiving downlink control information (DCI) on a physical downlink control channel (PDCCH) while monitoring the PDCCH on a UE-specific search space, the DCI including an information field indicating a value associated with the first SSSG ID; and

starting PDCCH monitoring in the first SSSG and stopping PDCCH monitoring in the one or more second SSSGs from a slot that is at least a time offset after a last symbol of the DCI, wherein:

a subcarrier spacing (SCS) associated with the time offset is determined by an SCS of a serving cell in which the DCI is received.

2 . The method of claim 1 , wherein the DCI comprises one of a DCI format 0_1, a DCI format 1_1, a DCI format 0_2, and a DCI format 1_2.

3 . The method of claim 1 , further comprising:

starting or restarting a timer upon receiving the DCI; and

starting the PDCCH monitoring in an SSSG associated with ID 0 upon expiration of the timer.

4 . The method of claim 1 , wherein a unit of the time offset is symbol.

5 . The method of claim 1 , wherein:

the information field has n bits, and

n is a positive integer determined based on a radio resource control (RRC) parameter associated with SSSG switching.

6 . The method of claim 1 , wherein:

the information field has n bits, and

n is a positive integer determined based on a number of configured SSSGs.

7 . A user equipment (UE) for power saving, the UE comprising:

at least one processor; and

at least one non-transitory computer-readable medium coupled to the at least one processor and storing one or more computer-executable instructions that, when executed by the at least one processor, cause the UE to:

receive a configuration indicating a plurality of search space set groups (SSSGs) that includes a first SSSG and one or more second SSSGs, the first SSSG being associated with a first SSSG identifier (ID);

receive downlink control information (DCI) on a physical downlink control channel (PDCCH) while monitoring the PDCCH on a UE-specific search space, the DCI including an information field indicating a value associated with the first SSSG ID; and

start PDCCH monitoring in the first SSSG and stop PDCCH monitoring in the one or more second SSSGs from a slot that is at least a time offset after a last symbol of the DCI, wherein:

a subcarrier spacing (SCS) associated with the time offset is determined by an SCS of a serving cell in which the DCI is received.

8 . The UE of claim 7 , wherein the DCI comprises one of a DCI format 0_1, a DCI format 1_1, a DCI format 0_2, and a DCI format 1_2.

9 . The UE of claim 7 , wherein the one or more computer-executable instructions, when executed by the at least one processor, further cause the UE to:

start or restart a timer upon receiving the DCI; and

start the PDCCH monitoring in an SSSG associated with ID 0 upon expiration of the timer.

10 . The UE of claim 7 , wherein a unit of the time offset is symbol.

11 . The UE of claim 7 , wherein:

the information field has n bits, and

n is a positive integer determined according to a radio resource control (RRC) parameter associated with SSSG switching.

12 . The UE of claim 7 , wherein:

the information field has n bits, and

n is a positive integer determined according to a number of configured SSSGs.

Assignments (2)

Continuity (2)

References Cited (13)