US-12621078-B2 - Method and apparatus for downlink and uplink transmission in full-duplex systems

Abstract

Methods and apparatuses for downlink and uplink transmissions in full-duplex systems. A method for operating a user equipment (UE) for receiving a physical downlink shared channel (PDSCH) includes receiving: first information for a first modulation and coding scheme (MCS) table associated with a first frequency-domain subband in a reception bandwidth on a cell, second information for a second MCS table associated with a second frequency-domain subband in the reception bandwidth, and third information for a condition. At least one of the first and second frequency-domain subbands is one of a subband full-duplex (SBFD) downlink (DL) subband, an SBFD flexible subband, or an SBFD uplink (UL) subband. The method further includes determining whether the condition is valid for reception in a slot or symbol and receiving the PDSCH in the slot or symbol based on the first MCS table when valid and the second MCS table when not valid.

Inventors

• Marian Rudolf
• Aristides Papasakellariou

Assignees

• SAMSUNG ELECTRONICS CO., LTD.

Dates

Publication Date

20260505

Application Date

20230717

Claims (18)

1. 1 . A method for a user equipment (UE) to receive a physical downlink shared channel (PDSCH), the method comprising: receiving: first information for a first modulation and coding scheme (MCS) table associated with a first frequency-domain subband in a bandwidth on a cell, second information for a second MCS table associated with a second frequency-domain subband in the bandwidth on the cell, and third information for a condition, wherein at least one of the first frequency-domain subband and the second frequency-domain subband is one of a first subband full-duplex (SBFD) downlink (DL) subband, a second SBFD DL subband, an SBFD flexible subband, or an SBFD uplink (UL) subband; determining whether the condition is valid for reception in a slot or symbol; and receiving the PDSCH in the slot or symbol based on: the first MCS table when the condition is valid, and the second MCS table when the condition is not valid.
2. 2 . The method of claim 1 , wherein: the condition is based on a slot or symbol type, and the condition is valid when the slot or symbol type is one of: a downlink (DL) type, a flexible (F) type, a slot or a symbol not indicated for simultaneous transmission and reception during a same time-domain resource on the cell, or a slot or a symbol indicated for simultaneous transmission and reception during a same time-domain resource on the cell.
3. 3 . The method of claim 1 , wherein: the condition is based on a bandwidth for the PDSCH reception, and the condition is valid when the first frequency-domain subband comprises the bandwidth for the PDSCH reception.
4. 4 . The method of claim 1 , further comprising: receiving a physical downlink control channel (PDCCH) that provides a downlink control information (DCI) format, wherein: the DCI format includes an indicator field with a first value and a second value, determining whether the condition is valid is based on a value of the indicator field, the condition is valid when the value of the indicator field indicates the first value, and the condition is invalid when the value of the indicator field indicates the second value.
5. 5 . The method of claim 1 , wherein: the first or second information is associated with a maximum allowed value for a MCS entry value to be valid, the method further comprises receiving a downlink control information (DCI) format that indicates the MCS entry value corresponding to the first or second MCS table, and the MCS entry value is valid when the MCS entry value is not larger than the maximum allowed value.
6. 6 . The method of claim 1 , wherein: the first or second information is associated with a minimum required value for a MCS entry value to be valid, the method further comprises receiving a downlink control information (DCI) format that indicates the MCS entry value corresponding to the first or second MCS table, and the MCS entry value is valid when the MCS entry value is not smaller than the minimum required value.
7. 7 . A base station comprising: a transceiver configured to transmit: first information for a first modulation and coding scheme (MCS) table associated with a first frequency-domain subband in a bandwidth on a cell, second information for a second MCS table associated with a second frequency-domain subband in the bandwidth on the cell, and third information for a condition, wherein at least one of the first frequency-domain subband and the second frequency-domain subband is one of a first subband full-duplex (SBFD) downlink (DL) subband, a second SBFD DL subband, an SBFD flexible subband, or an SBFD uplink (UL) subband; and a processor operably coupled to the transceiver, the processor configured to determine whether the condition is valid for transmission in a slot or symbol, wherein the transceiver is further configured to transmit a physical downlink shared channel (PDSCH) in the slot or symbol based on: the first MCS table when the condition is valid, and the second MCS table when the condition is not valid.
8. 8 . The base station of claim 7 , wherein: the condition is based on a slot or symbol type, and the condition is valid when the slot or symbol type is one of: a downlink (DL) type, a flexible (F) type, a slot or a symbol not indicated for simultaneous transmission and reception during a same time-domain resource on the cell, or a slot or a symbol indicated for simultaneous transmission and reception during a same time-domain resource on the cell.
9. 9 . The base station of claim 7 , wherein: the condition is based on a bandwidth for the PDSCH transmission, and the condition is valid when the first frequency-domain subband comprises the bandwidth for the PDSCH transmission.
10. 10 . The base station of claim 7 , wherein: the transceiver is further configured to transmit a physical downlink control channel (PDCCH) that provides a downlink control information (DCI) format, the DCI format includes an indicator field with a first value and a second value, the processor is further configured to determine whether the condition is valid is based on a value of the indicator field, the condition is valid when the value of the indicator field indicates the first value, and the condition is invalid when the value of the indicator field indicates the second value.
11. 11 . The base station of claim 7 , wherein: the first or second information is associated with a maximum allowed value for a MCS entry value to be valid, the transceiver is further configured to transmit a downlink control information (DCI) format that indicates the MCS entry value corresponding to the first or second MCS table, and the MCS entry value is valid when the MCS entry value is not larger than the maximum allowed value.
12. 12 . The base station of claim 7 , wherein: the first or second information is associated with a minimum required value for a MCS entry value to be valid, the transceiver is further configured to transmit a downlink control information (DCI) format that indicates the MCS entry value corresponding to the first or second MCS table, and the MCS entry value is valid when the MCS entry value is not smaller than the minimum required value.
13. 13 . A user equipment (UE) comprising: a transceiver configured to receive: first information for a first modulation and coding scheme (MCS) table associated with a first frequency-domain subband in a bandwidth on a cell, second information for a second MCS table associated with a second frequency-domain subband in the bandwidth on the cell, and third information for a condition, wherein at least one of the first frequency-domain subband and the second frequency-domain subband is one of a first subband full-duplex (SBFD) downlink (DL) subband, a second SBFD DL subband, an SBFD flexible subband, or an SBFD uplink (UL) subband; and a processor operably coupled to the transceiver, the processor configured to determine whether the condition is valid for reception in a slot or symbol, wherein the transceiver is further configured to receive a physical downlink shared channel (PDSCH) in the slot or symbol based on: the first MCS table when the condition is valid, and the second MCS table when the condition is not valid.
14. 14 . The UE of claim 13 , wherein: the condition is based on a slot or symbol type, and the condition is valid when the slot or symbol type is one of: a downlink (DL) type, a flexible (F) type, a slot or a symbol not indicated for simultaneous transmission and reception during a same time-domain resource on the cell, or a slot or a symbol indicated for simultaneous transmission and reception during a same time-domain resource on the cell.
15. 15 . The UE of claim 13 , wherein: the condition is based on a bandwidth for the PDSCH reception, and the condition is valid when the first frequency-domain subband comprises the bandwidth for the PDSCH reception.
16. 16 . The UE of claim 13 , wherein: the transceiver is further configured to receive a physical downlink control channel (PDCCH) that provides a downlink control information (DCI) format, the DCI format includes an indicator field with a first value and a second value, the processor is further configured to determine whether the condition is valid is based on a value of the indicator field, the condition is valid when the value of the indicator field indicates the first value, and the condition is invalid when the value of the indicator field indicates the second value.
17. 17 . The UE of claim 13 , wherein: the first or second information is associated with a maximum allowed value for a MCS entry value to be valid, the transceiver is further configured to receive a downlink control information (DCI) format that indicates the MCS entry value corresponding to the first or second MCS table, and the MCS entry value is valid when the MCS entry value is not larger than the maximum allowed value.
18. 18 . The UE of claim 13 , wherein: the first or second information is associated with a minimum required value for a MCS entry value to be valid, the transceiver is further configured to receive a downlink control information (DCI) format that indicates the MCS entry value corresponding to the first or second MCS table, and the MCS entry value is valid when the MCS entry value is not smaller than the minimum required value.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS AND CLAIM OF PRIORITY The present application claims priority to U.S. Provisional Patent Application No. 63/393,652, filed on Jul. 29, 2023, and U.S. Provisional Patent Application No. 63/393,425, filed on Jul. 29, 2023. The contents of the above-identified patent documents are incorporated herein by reference. TECHNICAL FIELD The present disclosure relates generally to wireless communication systems and, more specifically, the present disclosure relates to downlink (DL) and uplink (UL) transmissions in full-duplex systems. BACKGROUND 5th generation (5G) or new radio (NR) mobile communications is recently gathering increased momentum with all the worldwide technical activities on the various candidate technologies from industry and academia. The candidate enablers for the 5G/NR mobile communications include massive antenna technologies, from legacy cellular frequency bands up to high frequencies, to provide beamforming gain and support increased capacity, new waveform (e.g., a new radio access technology (RAT)) to flexibly accommodate various services/applications with different requirements, new multiple access schemes to support massive connections, and so on. SUMMARY The present disclosure relates to wireless communication systems and, more specifically, the present disclosure relates to DL and UL transmissions in full-duplex systems. In one embodiment, a method for operating a user equipment (UE) for receiving a physical downlink shared channel (PDSCH) is provided. The method includes receiving: first information for a first modulation and coding scheme (MCS) table associated with a first frequency-domain subband in a reception bandwidth on a cell, second information for a second MCS table associated with a second frequency-domain subband in the reception bandwidth on the cell, and third information for a condition. At least one of the first frequency-domain subband and the second frequency-domain subband is one of a first subband full-duplex (SBFD) DL subband, a second SBFD DL subband, an SBFD flexible subband, or an SBFD UL subband. The method further includes determining whether the condition is valid for reception in a slot or symbol and receiving the PDSCH in the slot or symbol based on the first MCS table when the condition is valid and the second MCS table when the condition is not valid. In another embodiment, a base station is provided. The base station includes a transceiver configured to transmit: first information for a first MCS table associated with a first frequency-domain subband in a transmission bandwidth on a cell, second information for a second MCS table associated with a second frequency-domain subband in the transmission bandwidth on the cell, and third information for a condition. At least one of the first frequency-domain subband and the second frequency-domain subband is one of a first SBFD DL subband, a second SBFD DL subband, an SBFD flexible subband, or an SBFD UL subband. The base station further includes a processor operably coupled to the transceiver. The processor is configured to determine whether the condition is valid for transmission in a slot or symbol. The transceiver is further configured to transmit receive a PDSCH in the slot or symbol based on the first MCS table when the condition is valid and the second MCS table when the condition is not valid. In yet another embodiment, a user equipment (UE) is provided. The UE includes a transceiver configured to receive: first information for a first MCS table associated with a first frequency-domain subband in a reception bandwidth on a cell, second information for a second MCS table associated with a second frequency-domain subband in the reception bandwidth on the cell, and third information for a condition. At least one of the first frequency-domain subband and the second frequency-domain subband is one of a first SBFD DL subband, a second SBFD DL subband, an SBFD flexible subband, or an SBFD UL subband. The UE further includes a processor operably coupled to the transceiver. The processor is configured to determine whether the condition is valid for reception in a slot or symbol. The transceiver is further configured to receive a PDSCH in the slot or symbol based on the first MCS table when the condition is valid and the second MCS table when the condition is not valid. Other technical features may be readily apparent to one skilled in the art from the following figures, descriptions, and claims. Before undertaking the DETAILED DESCRIPTION below, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document. The term “couple” and its derivatives refer to any direct or indirect communication between two or more elements, whether or not those elements are in physical contact with one another. The terms “transmit,” “receive,” and “communicate,” as well as derivatives thereof, encompass both direct and indirect communication. The