User equipment sub-band full duplex
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network node, capability information indicating one or more sub-band full-duplex (SBFD) support conditions for the UE. The UE may communicate with the network node based at least in part on the one or more SBFD support conditions for the UE. 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, configured to:
transmit, to a network node, capability information indicating one or more sub-band full-duplex (SBFD) support conditions for the UE, wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on a separation between a receive subcarrier for downlink reception and a transmit subcarrier for uplink transmission satisfying a first threshold for downlink reception and uplink transmission using a same antenna panel of the UE and a second threshold for downlink reception and uplink transmission using different antenna panels of the UE; and
communicate with the network node based at least in part on the one or more SBFD support conditions for the UE.
2 . The UE of claim 1 , wherein the one or more processors, to communicate with the network node based at least in part on the one or more SBFD support conditions, are configured to:
communicate with the network node via SBFD communications in a slot in accordance with the one or more SBFD support conditions for the UE being satisfied.
3 . The UE of claim 1 , wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on different antenna panels of the UE being used for downlink reception and uplink transmission.
4 . The UE of claim 1 , wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on a separation between a receive subcarrier for downlink reception and a transmit subcarrier for uplink transmission satisfying a threshold.
5 . The UE of claim 1 , wherein the one or more SBFD support conditions include:
a first SBFD support condition that indicates a first UE capability for SBFD operation using a same antenna panel of the UE for downlink reception and uplink transmission, and
a second SBFD support condition that indicates a second UE capability for SBFD operation using different antenna panels of the UE for downlink reception and uplink transmission.
6 . The UE of claim 5 , wherein the first SBFD support condition indicates that SBFD operation using the same antenna panel of the UE for downlink reception and uplink transmission is not supported, supported, or supported in connection with a separation between a receive subcarrier for downlink reception and a transmit subcarrier for uplink transmission satisfying a first threshold, and
wherein the second SBFD support condition indicates that SBFD operation using different antenna panels of the UE for downlink reception and uplink transmission is not supported, supported, or supported in connection with the separation between the receive subcarrier for downlink reception and the transmit subcarrier for uplink transmission satisfying a second threshold.
7 . The UE of claim 1 , wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on at least one of a type or a priority of an uplink transmission scheduled for the UE.
8 . The UE of claim 7 , wherein the one or more processors are further configured to receive downlink control information (DCI) that schedules the uplink transmission, wherein the DCI includes a priority indicator that indicates the priority of the uplink transmission, and wherein the one or more processors, to communicate with the network node based at least in part on the one or more SBFD support conditions, are configured to:
communicate with the network node via SBFD communications in a slot in which the uplink transmission is scheduled based at least in part on the at least one of the type or the priority of the uplink transmission.
9 . The UE of claim 7 , wherein the one or more SBFD support conditions include at least one of:
a first SBFD support condition that indicates whether the UE supports SBFD operation for a physical uplink control channel (PUCCH) communication associated with a first priority,
a second SBFD support condition that indicates whether the UE supports SBFD operation for a PUCCH communication associated with a second priority,
a third SBFD support condition that indicates whether the UE supports SBFD operation for a physical uplink shared channel (PUSCH) communication associated with the first priority, or
a fourth SBFD support condition that indicates whether the UE supports SBFD operation for a PUSCH communication associated with the second priority.
10 . The UE of claim 1 , wherein the one or more SBFD support conditions include respective SBFD support conditions associated with one or more uplink or downlink transmission parameters.
11 . The UE of claim 10 , wherein the respective SBFD support conditions associated with the one or more uplink or downlink transmission parameters indicate at least one of:
a maximum modulation order, for downlink transmission, uplink transmission, or downlink and uplink transmission, for which SBFD operation is supported by the UE, or
a minimum coding rate, for downlink transmission, uplink transmission, or downlink and uplink transmission, for which SBFD operation is supported by the UE.
12 . The UE of claim 10 , wherein the respective SBFD support conditions associated with the one or more uplink or downlink transmission parameters indicate a maximum number of carriers on which SBFD operation is supported by the UE at a time.
13 . The UE of claim 1 , wherein the one or more processors, to communicate with the network node, are configured to:
receive, in a slot, a downlink communication in a receive subcarrier of a downlink sub-band; and
transmit, in the slot, an uplink communication in a transmit subcarrier of an uplink sub-band with a maximum transmit power that is based at least in part on a separation between the receive subcarrier and the transmit subcarrier.
14 . The UE of claim 13 , wherein the maximum transmit power is based at least in part on a maximum transmit power reduction determined as a function of the separation between the receive subcarrier and the transmit subcarrier.
15 . The UE of claim 14 , wherein the function is a UE-specific function, and wherein the capability information includes an indication of the UE-specific function.
16 . The UE of claim 14 , wherein the function is a non-UE-specific function, and wherein the capability information includes an indication of UE capability for SBFD operation with or without the maximum transmit power reduction.
17 . The UE of claim 13 , wherein the maximum transmit power is based at least in part on a maximum transmit power reduction determined based at least in part on different antenna panels of the UE being used for downlink reception and uplink transmission.
18 . The UE of claim 1 , wherein the one or more processors are further configured to:
transmit, to the network node, a request to refrain from scheduling SBFD communications for the UE.
19 . The UE of claim 1 , wherein the one or more processors are further configured to:
refrain from performing a scheduled downlink reception or a scheduled uplink transmission in a slot based at least in part on the one or more SBFD support conditions for the UE not being satisfied.
20 . The UE of claim 1 , wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on an uplink grant type associated with an uplink transmission scheduled for the UE.
21 . A network node for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
receive capability information indicating one or more sub-band full-duplex (SBFD) support conditions for a user equipment (UE), wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on a separation between a receive subcarrier for downlink reception and a transmit subcarrier for uplink transmission satisfying a first threshold for downlink reception and uplink transmission using a same antenna panel of the UE and a second threshold for downlink reception and uplink transmission using different antenna panels of the UE; and
communicate with the UE based at least in part on the one or more SBFD support conditions for the UE.
22 . The network node of claim 21 , wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on at least one of a type or a priority of an uplink transmission scheduled for the UE.
23 . A method of wireless communication performed by a user equipment (UE), comprising:
transmitting, to a network node, capability information indicating one or more sub-band full-duplex (SBFD) support conditions for the UE, wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on a separation between a receive subcarrier for downlink reception and a transmit subcarrier for uplink transmission satisfying a first threshold for downlink reception and uplink transmission using a same antenna panel of the UE and a second threshold for downlink reception and uplink transmission using different antenna panels of the UE; and
communicating with the network node based at least in part on the one or more SBFD support conditions for the UE.
24 . The method of claim 23 , wherein communicating with the network node based at least in part on the one or more SBFD support conditions comprises:
communicating with the network node via SBFD communications in a slot in accordance with the one or more SBFD support conditions for the UE being satisfied.
25 . The method of claim 23 , wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on different antenna panels of the UE being used for downlink reception and uplink transmission.
26 . The method of claim 23 , wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on a separation between a receive subcarrier for downlink reception and a transmit subcarrier for uplink transmission satisfying a threshold.
27 . The method of claim 23 , wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on at least one of a type or a priority of an uplink transmission scheduled for the UE.
28 . The method of claim 23 , wherein the one or more SBFD support conditions include respective SBFD support conditions associated with one or more uplink or downlink transmission parameters.
29 . The method of claim 23 , wherein communicating with the network node comprises:
receiving, in a slot, a downlink communication in a receive subcarrier of a downlink sub-band; and
transmitting, in the slot, an uplink communication in a transmit subcarrier of an uplink sub-band with a maximum transmit power that is based at least in part on a separation between the receive subcarrier and the transmit subcarrier.
30 . A method of wireless communication performed by a network node, comprising:
receiving capability information indicating one or more sub-band full-duplex (SBFD) support conditions for a user equipment (UE), wherein the one or more SBFD support conditions indicate support for SBFD operation by the UE based at least in part on a separation between a receive subcarrier for downlink reception and a transmit subcarrier for uplink transmission satisfying a first threshold for downlink reception and uplink transmission using a same antenna panel of the UE and a second threshold for downlink reception and uplink transmission using different antenna panels of the UE; and
communicating with the UE based at least in part on the one or more SBFD support conditions for the UE.