Downlink reception in an uplink subband
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information associated with downlink reception in an uplink subband corresponding to a subband full duplex (SBFD)-aware configuration. The UE may receive a downlink communication in the uplink subband based on the configuration information. Numerous other aspects are described.
1 . A user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors coupled to the one or more memories and configured to cause the UE to:
receive configuration information associated with downlink reception in an uplink subband corresponding to a subband full duplex (SBFD)-aware configuration; and
receive a downlink communication in the uplink subband based on the configuration information.
2 . The UE of claim 1 , wherein the downlink communication is associated with an inter-UE cross link interference (CLI) measurement operation.
3 . The UE of claim 1 , wherein the downlink communication comprises a physical downlink shared channel (PDSCH) communication.
4 . The UE of claim 1 , wherein the downlink communication comprises a channel state information reference signal (CSI-RS).
5 . The UE of claim 1 , wherein the one or more processors are further configured to cause the UE to receive downlink control information (DCI) that schedules the downlink communication.
6 . The UE of claim 1 , wherein the downlink communication comprises a physical downlink shared channel (PDSCH) communication, wherein the one or more processors are further configured to cause the UE to receive a rate matching indication that indicates that the UE is not to rate match the PDSCH around at least one of the uplink subband or a guard band associated with the uplink subband.
7 . The UE of claim 6 , wherein the one or more processors are further configured to cause the UE to receive downlink control information (DCI) comprising the rate matching indication.
8 . The UE of claim 7 , wherein the rate matching indication comprises an explicit DCI bitfield.
9 . The UE of claim 8 , wherein the DCI bitfield indicates a set of symbols as SBFD symbols or non-SBFD symbols.
10 . The UE of claim 8 , wherein the DCI bitfield activates or deactivates rate matching around the at least one of the uplink subband or the guard band.
11 . The UE of claim 7 , wherein the DCI schedules at least one of a physical downlink shared channel or a channel state information reference signal.
12 . The UE of claim 6 , wherein the one or more processors are further configured to cause the UE to receive a channel state information reference signal (CSI-RS) corresponding to a CSI-RS resource information element includes an indicator of a duplexing mode.
13 . The UE of claim 6 , wherein the rate matching indication is an implicit indication based on a time domain resource allocation.
14 . The UE of claim 6 , wherein the one or more processors are further configured to cause the UE to determine, based on a frequency domain resource allocation, that a set of frequency resources corresponding to the at least one of the uplink subband or the guard band are available frequency resources for the downlink communication.
15 . The UE of claim 1 , wherein a scheduling offset associated with the downlink reception has a length that is greater than or equal to a length of an application time, wherein the application time comprises a minimum time period between a downlink control information and a first symbol of the downlink communication.
16 . The UE of claim 1 , wherein the UE is not capable of simultaneous cross link interference (CLI) measurement and downlink reception, and wherein the one or more processors are further configured to cause the UE to obtain a CLI measurement in an uplink-only subband or a downlink and uplink subband.
17 . The UE of claim 1 , wherein the UE is capable of simultaneous cross link interference (CLI) measurement and downlink reception, and wherein the one or more processors are further configured to cause the UE to obtain a CLI measurement in the uplink subband and receive a downlink communication in a downlink subband.
18 . The UE of claim 1 , wherein the one or more processors are further configured to cause the UE to transmit capability information indicative of a capability of the UE for downlink reception in the uplink subband, wherein the configuration information is based on the capability information.
19 . The UE of claim 1 , wherein the one or more processors are further configured to cause the UE to:
transmit capability information indicative of a capability of the UE to be scheduled for downlink reception in the uplink subband; and
receive, based on the capability information, downlink control information that schedules the downlink communication.
20 . The UE of claim 1 , wherein the one or more processors are further configured to cause the UE to:
transmit capability information indicative of a capability of the UE to measure cross link interference in the uplink subband and a capability of the UE to be scheduled for downlink reception in the uplink subband, wherein the configuration information is based on the capability information; and
receive, based on the capability information, downlink control information that schedules the downlink communication.
21 . The UE of claim 20 , wherein the capability information includes a first indication that indicates the capability of the UE to measure cross link interference in the uplink subband and a second indication that indicates the capability of the UE to be scheduled for downlink reception in the uplink subband.
22 . The UE of claim 20 , wherein the capability information includes a single indication associated with downlink reception in the uplink subband.
23 . A network node for wireless communication, comprising:
one or more memories; and
one or more processors coupled to the one or more memories and configured to cause the network node to:
transmit, to a user equipment (UE), configuration information associated with downlink reception in an uplink subband corresponding to a subband full duplex (SBFD)-aware configuration; and
transmit a downlink communication in the uplink subband based on the configuration information.
24 . The network node of claim 23 , wherein a scheduling offset associated with the downlink reception has a length that is greater than or equal to a length of an application time, wherein the application time comprises a minimum time period between a downlink control information and a first symbol of the downlink communication.
25 . The network node of claim 23 , wherein the UE is capable of simultaneous cross link interference (CLI) measurement and downlink reception, wherein the downlink communication is associated with a CLI measurement in the uplink subband, and wherein the one or more processors are configured to transmit an additional communication in a downlink subband.
26 . The network node of claim 23 , wherein the one or more processors are further configured to cause the network node to receive capability information indicative of a capability of the UE for downlink reception in the uplink subband, wherein the configuration information is based on the capability information.
27 . A method of wireless communication performed by an apparatus at a user equipment (UE), comprising:
receiving configuration information associated with downlink reception in an uplink subband corresponding to a subband full duplex (SBFD)-aware configuration; and
receiving a downlink communication in the uplink subband based on the configuration information.
28 . The method of claim 27 , wherein a scheduling offset associated with the downlink reception has a length that is greater than or equal to a length of an application time, wherein the application time comprises a minimum time period between a downlink control information and a first symbol of the downlink communication.
29 . A method of wireless communication performed by an apparatus at a network node, comprising:
transmitting configuration information associated with downlink reception in an uplink subband corresponding to a subband full duplex (SBFD)-aware configuration; and
transmitting a downlink communication in the uplink subband based on the configuration information.
30 . The method of claim 29 , wherein a scheduling offset associated with the downlink reception has a length that is greater than or equal to a length of an application time, wherein the application time comprises a minimum time period between a downlink control information and a first symbol of the downlink communication.