Granted Patent B2

US 12,520,313 · App. 17/998,066 · Granted Jan 6, 2026

Inventor: Cheng-Rung Tsai (Hsinchu, TW)

Assignee: MEDIATEK INC.

H04W72/1273H04W72/231H04W72/232

Abstract

Claims (29)

1 . A user equipment (UE), comprising:

a radio frequency (RF) signal processing device, configured to receive a radio resource control (RRC) information from a base station; and

a processor, coupled to the RF signal processing device,

wherein when the RF signal processing device receives a first configuration of a semi-static downlink (DL) scheduling and a higher layer parameter from the RRC information, the processor determines not to receive the semi-static DL scheduling in a set of symbols in an event that the RF signal processing device does not receive a downlink control information (DCI) for the semi-static DL scheduling from the base station.

2 . The UE of claim 1 , wherein the semi-static DL scheduling comprises a periodic channel-state-information reference-signal (P-CSI-RS) resource, a semi-persistent CSI-RS (SP-CSI-RS) resource or a semi-persistent scheduled physical-data shared-channel (SPS-PDSCH).

3 . The UE of claim 1 , wherein the first configuration of the semi-static DL scheduling tells the UE to receive the semi-static DL scheduling in the set of symbols according to a periodicity.

4 . The UE of claim 1 , wherein the higher layer parameter indicates that a UE behavior to determine how to perform reception of the semi-static DL scheduling is enabled.

5 . The UE of claim 1 , wherein the DCI schedules a downlink channel or a downlink signal in the set of symbols.

6 . The UE of claim 5 , wherein the downlink channel or the downlink signal is not the semi-static DL scheduling.

7 . The UE of claim 1 , wherein when the RF signal processing device receives the first configuration of the semi-static DL scheduling and the higher layer parameter from the RRC information, but not receives a second configuration and/or a third configuration from the RRC information, the processor determines not to receive the semi-static DL scheduling in the set of symbols in an event that the RF signal processing device does not receive the DCI.

8 . The UE of claim 7 , wherein the second configuration provides a slot-format-indicator (SFI) index field in a specific DCI format, and wherein the third configuration provides a channel occupancy (CO) duration field in the specific DCI format.

9 . A communication method for semi-static downlink (DL) scheduling, applied to a user equipment (UE), the method comprising:

receiving, by a radio frequency (RF) signal processing device of the UE, a radio resource control (RRC) information; and

when the RF receives a first configuration of a semi-static DL scheduling and a higher layer parameter from the RRC information, determining, by a processor of the UE, not to receive the semi-static DL scheduling in a set of symbols in an event that the RF signal processing device does not receive a downlink control information (DCI) for the semi-static DL scheduling from a base station.

10 . The communication method of claim 9 , wherein the semi-static DL scheduling comprises a periodic channel-state-information reference-signal (P-CSI-RS) resource, a semi-persistent CSI-RS (SP-CSI-RS) resource or a semi-persistent scheduled physical-data shared-channel (SPS-PDSCH).

11 . The communication method of claim 9 , wherein the first configuration of the semi-static DL scheduling tells the UE to receive the semi-static DL scheduling in the set of symbols according to a periodicity.

12 . The communication method of claim 9 , wherein the higher layer parameter indicates that a UE behavior to determine how to perform a reception of the semi-static DL scheduling is enabled.

13 . The communication method of claim 9 , wherein the DCI schedules a downlink channel or a downlink signal in the set of symbols.

14 . The communication method of claim 13 , wherein the downlink channel or the downlink signal is not the semi-static DL scheduling.

15 . The communication method of claim 9 , further comprising:

when the RF signal processing device receives the first configuration of the semi-static DL scheduling and the higher layer parameter from the RRC information, but not receives a second configuration and/or a third configuration from the RRC information, determining, by the processor, not to receive the semi-static DL scheduling in the set of symbols in an event that the RF signal processing device does not receive the DCI.

16 . The communication method of claim 15 , wherein the second configuration provides a slot-format-indicator (SFI) index field in a specific DCI format.

17 . The communication method of claim 15 , wherein the third configuration provides a channel occupancy (CO) duration field in a specific DCI format.

18 . A communication method for semi-static downlink (DL) scheduling, applied to a base station, the method comprising:

transmitting, by the base station, a radio resource control (RRC) information and a downlink control information (DCI) for the semi-static DL scheduling to tell a user equipment (UE) to receive the semi-static DL scheduling in the set of symbols, wherein the base station transmits a first configuration of a semi-static DL scheduling and a higher layer parameter through the RRC information.

19 . The communication method of claim 18 , wherein the semi-static DL scheduling comprises a periodic channel-state-information reference-signal (P-CSI-RS) resource, a semi-persistent CSI-RS (SP-CSI-RS) resource, or a semi-persistent scheduled physical-data shared-channel (SPS-PDSCH).

20 . The communication method of claim 19 , further comprising:

transmitting, by the base station, a second configuration that provides a slot-format-indicator (SFI) index field in a specific DCI format and/or a third configuration that provides

a channel occupancy (CO) duration field in the specific DCI format to the UE.

Assignments (1)

Continuity (2)

References Cited (18)