Subband configuration in full-duplex systems

Patent metadata

Field	Value
Publication number	US-2024155583-A1
Application number	US-202318492601-A
Country	US
Kind code	A1
Filing date	Oct 23, 2023
Priority date	Nov 3, 2022
Publication date	May 9, 2024
Grant date	—

Abstract

Apparatuses and methods for utilizing a subband configuration in full-duplex systems. A method of operating a user equipment (UE) includes receiving first information for a first set of parameters for a first frequency-domain subband associated with an uplink (UL) bandwidth for transmissions on a cell; receiving second information for a second set of parameters for a second frequency-domain subband associated with a downlink (DL) bandwidth for receptions on the cell; and determining a third frequency-domain subband on a symbol based on the first frequency-domain subband, the second frequency-domain subband, and a reference bandwidth. The method further includes receiving or transmitting on the symbol. A frequency-domain resource of the third frequency-domain subband is not available for receptions or transmissions on the symbol on the cell.

First claim

What is claimed is:

1 . A method of operating a user equipment (UE), the method comprising:
receiving first information for a first set of parameters for a first frequency-domain subband associated with an uplink (UL) bandwidth for transmissions on a cell; receiving second information for a second set of parameters for a second frequency-domain subband associated with a downlink (DL) bandwidth for receptions on the cell; determining a third frequency-domain subband on a symbol based on the first frequency-domain subband, the second frequency-domain subband, and a reference bandwidth, wherein:
at least one of the first frequency-domain subband and the second frequency-domain subband is one of a subband full-duplex (SBFD) DL subband, an SBFD flexible subband, or an SBFD UL subband, and
the reference bandwidth is one of a carrier bandwidth, a bandwidth part (BWP), or a frequency-domain allocation with upper and lower limits; and
receiving or transmitting on the symbol, wherein a frequency-domain resource of the third frequency-domain subband is not available for receptions or transmissions on the symbol on the cell.

2 . The method of claim 1 , wherein determining the third frequency-domain subband on the symbol further comprises determining the third frequency-domain subband based on the first or the second frequency-domain subband of another symbol.

3 . The method of claim 1 , wherein:
determining the third frequency-domain subband on the symbol further comprises determining the third frequency-domain subband based on a frequency-domain limit (FDL) value, the FDL value is associated with a minimum or maximum frequency-domain allocation value for the reference bandwidth, and receiving or transmitting on the symbol further comprises receiving or transmitting on the symbol based on the minimum or maximum frequency-domain allocation value.

4 . The method of claim 1 , wherein:
determining the third frequency-domain subband on the symbol further comprises determining the third frequency-domain subband based on a frequency-domain allocation size (FDAS) value, the FDAS value is associated with a minimum or maximum FDAS value for a frequency-domain subband, the method further comprises determining a size of the third frequency-domain subband based on the minimum or maximum FDAS value.

5 . The method of claim 1 , wherein determining the third frequency-domain subband on the symbol further comprises determining the third frequency-domain subband based on a reference bandwidth of another symbol.

6 . The method of claim 1 , wherein:
determining the third frequency-domain subband on the symbol further comprises determining the third frequency-domain subband based on the reference bandwidth, and the reference bandwidth corresponds to one of multiple configured DL or UL BWPs.

7 . The method of claim 1 , wherein:
determining the third frequency-domain subband on the symbol further comprises determining the third frequency-domain subband based on the reference bandwidth, and the reference bandwidth is provided as a virtual BWP.

8 . A user equipment (UE) comprising:
a transceiver configured to:
receive first information for a first set of parameters for a first frequency-domain subband associated with an uplink (UL) bandwidth for transmissions on a cell; and
receive second information for a second set of parameters for a second frequency-domain subband associated with a downlink (DL) bandwidth for receptions on the cell; and
a processor configured to determine a third frequency-domain subband on a symbol based on the first frequency-domain subband, the second frequency-domain subband, and a reference bandwidth, wherein at least one of the first frequency-domain subband and the second frequency-domain subband is one of a subband full-duplex (SBFD) DL subband, an SBFD flexible subband, or an SBFD UL subband, wherein the reference bandwidth is one of a carrier bandwidth, a bandwidth part (BWP), or a frequency-domain allocation with upper and lower limits, wherein the transceiver is further configured to receive or transmit on the symbol, and wherein a frequency-domain resource of the third frequency-domain subband is not available for receptions or transmissions on the symbol on the cell.

9 . The UE of claim 8 , wherein the processor is further configured to determine the third frequency-domain subband based on the first or the second frequency-domain subband of another symbol.

10 . The UE of claim 8 , wherein:
the processor is further configured to determine the third frequency-domain subband based on a frequency-domain limit (FDL) value, the FDL value is associated with a minimum or maximum frequency-domain allocation value for the reference bandwidth, and wherein the transceiver is further configured to receive or transmit on the symbol based on the minimum or maximum frequency-domain allocation value.

11 . The UE of claim 8 , wherein:
the processor is further configured to determine the third frequency-domain subband based on a frequency-domain allocation size (FDAS) value, the FDAS value is associated with a minimum or maximum FDAS value for a frequency-domain subband, the processor is further configured to determine a size of the third frequency-domain subband based on the minimum or maximum FDAS value.

12 . The UE of claim 8 , wherein the processor is further configured to determine the third frequency-domain subband based on a reference bandwidth of another symbol.

13 . The UE of claim 8 , wherein:
the processor is further configured to determine the third frequency-domain subband based on the reference bandwidth, and the reference bandwidth corresponds to one of multiple configured DL or UL BWPs.

14 . The UE of claim 8 , wherein:
the processor is further configured to determine the third frequency-domain subband based on the reference bandwidth, and the reference bandwidth is provided as a virtual BWP.

15 . A base station (BS) comprising:
a transceiver configured to:
transmit first information for a first set of parameters for a first frequency-domain subband associated with an uplink (UL) bandwidth for receptions on a cell; and
transmit second information for a second set of parameters for a second frequency-domain subband associated with a downlink (DL) bandwidth for transmissions on the cell; and
a processor configured to determine a third frequency-domain subband on a symbol based on the first frequency-domain subband, the second frequency-domain subband, and a reference bandwidth, wherein at least one of the first frequency-domain subband and the second frequency-domain subband is one of a subband full-duplex (SBFD) DL subband, an SBFD flexible subband, or an SBFD UL subband, wherein the reference bandwidth is one of a carrier bandwidth, a bandwidth part (BWP), or a frequency-domain allocation with upper and lower limits, wherein the transceiver is further configured to receive or transmit on the symbol, and wherein a frequency-domain resource of the third frequency-domain subband is not available for receptions or transmissions on the symbol on the cell.

16 . The BS of claim 15 , wherein the processor is further configured to determine the third frequency-domain subband based on the first or the second frequency-domain subband of another symbol.

17 . The BS of claim 15 , wherein:
the processor is further configured to determine the third frequency-domain subband based on a frequency-domain limit (FDL) value, the FDL value is associated with a minimum or maximum frequency-domain alloc

Assignees

• Samsung Electronics Co Ltd

Inventors

• Rudolf Marian
• Papasakellariou Aristides

Classifications

• H04W72/0453 Primary

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04L5/14 Primary

  Two-way operation using the same type of signal, i.e. duplex · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04L5/0092

  Indication of how the channel is divided · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title