SUB-BAND FULL DUPLEX RESOURCE CONFIGURATION

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may output a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The network node may output a second configuration configuring one or more resources, of the set of resources, to a sub-band full duplex (SBFD) format based at least in part on the one or more resources satisfying a condition. Numerous other aspects are described.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for sub-band full duplex (SBFD) resource configuration.

BACKGROUND

SUMMARY

Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include outputting a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The method may include outputting a second configuration configuring one or more resources, of the set of resources, to a sub-band full duplex (SBFD) format based at least in part on the one or more resources satisfying a condition.

Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include receiving a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The method may include receiving a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format. The method may include communicating on the one or more resources.

Some aspects described herein relate to a network node for wireless communication. The network node may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to output a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The one or more processors may be configured to output a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition.

Some aspects described herein relate to a UE for wireless communication. The UE may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The one or more processors may be configured to receive a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format. The one or more processors may be configured to communicate on the one or more resources.

Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node. The set of instructions, when executed by one or more processors of the network node, may cause the network node to output a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The set of instructions, when executed by one or more processors of the network node, may cause the network node to output a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition.

Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format. The set of instructions, when executed by one or more processors of the UE, may cause the UE to communicate on the one or more resources.

Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for outputting a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The apparatus may include means for outputting a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition.

Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The apparatus may include means for receiving a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format. The apparatus may include means for communicating on the one or more resources.

DETAILED DESCRIPTION

In some aspects, the network node110may include a communication manager150. As described in more detail elsewhere herein, the communication manager150may output a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format; and output a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition. Additionally, or alternatively, the communication manager150may perform one or more other operations described herein.

In some aspects, the UE120may include a communication manager140. As described in more detail elsewhere herein, the communication manager140may receive a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format; receive a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format; and communicate on the one or more resources. Additionally, or alternatively, the communication manager140may perform one or more other operations described herein.

At the network node110, a transmit processor220may receive data, from a data source212, intended for the UE120(or a set of UEs120). The transmit processor220may select one or more modulation and coding schemes (MCSs) for the UE120based at least in part on one or more channel quality indicators (CQIs) received from that UE120. The network node110may process (e.g., encode and modulate) the data for the UE120based at least in part on the MCS(s) selected for the UE120and may provide data symbols for the UE120. The transmit processor220may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and control symbols. The transmit processor220may generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor230may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems232(e.g., T modems), shown as modems232athrough232t. For example, each output symbol stream may be provided to a modulator component (shown as MOD) of a modem232. Each modem232may use a respective modulator component to process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream.

Each modem232may further use a respective modulator component to process (e.g., convert to analog, amplify, filter, and/or upconvert) the output sample stream to obtain a downlink signal. The modems232athrough232tmay transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas234(e.g., T antennas), shown as antennas234athrough234t.

In some aspects, a network node (e.g., the network node110) includes means for outputting a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format; and/or means for outputting a second configuration configuring one or more resources, of the set of resources, to a sub-band full duplex (SBFD) format based at least in part on the one or more resources satisfying a condition. In some aspects, the means for the network node to perform operations described herein may include, for example, one or more of communication manager150, transmit processor220, TX MIMO processor230, modem232, antenna234, MIMO detector236, receive processor238, controller/processor240, memory242, or scheduler246.

In some aspects, a UE (e.g., the UE120) includes means for receiving a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format; means for receiving a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format; and/or means for communicating on the one or more resources. The means for the UE to perform operations described herein may include, for example, one or more of communication manager140, antenna252, modem254, MIMO detector256, receive processor258, transmit processor264, TX MIMO processor266, controller/processor280, or memory282.

FIGS.4A-4Dare diagrams illustrating examples400,410,420,430of full duplex (FD) communication in accordance with the present disclosure. An FD communication is a communication that utilizes overlapped time resources at a single node (such as a UE or a base station) for transmission and reception. For example, a UE or a network node may perform a transmission and a reception using the same time resources, such as via frequency division multiplexing (FDM) or spatial division multiplexing (SDM). “FDM” refers to performing two or more communications using different frequency resource allocations. “SDM” refers to performing two or more communications using different spatial parameters, such as different transmission configuration indicator (TCI) states defining different beams. An SDM communication can use overlapped time resources and frequency resources, and an FDM communication can use overlapped time resources and spatial resources (that is, overlapped beam parameters, TCI states, or the like). A TCI state indicates a spatial parameter for a communication. For example, a TCI state for a communication may identify a source signal (such as a synchronization signal block, a channel state information reference signal, or the like) and a spatial parameter to be derived from the source signal for the purpose of transmitting or receiving the communication. For example, the TCI state may indicate a quasi-co-location (QCL) type. A QCL type may indicate one or more spatial parameters to be derived from the source signal. The source signal may be referred to as a QCL source. FD communications can include dynamic traffic (such as scheduled by downlink control information (DCI)) and/or semi-static traffic. Semi-static traffic is traffic associated with a semi-persistent resource, such as a semi-persistent scheduling (SPS) configured resource or a configured grant (CG).

The example400ofFIG.4Aincludes a UE1402and two network nodes (e.g., TRPs)404-1,404-2, wherein the UE1402is sending uplink transmissions to the network node404-1and is receiving downlink transmissions from the network node404-2. In some aspects, the network node404described in connection withFIG.4may be a base station, a TRP associated with (e.g., managed by) a network node, an RU, a DU, or a similar network node. In some aspects, the UEs402described in connection withFIG.4may be the UE120described in connection withFIGS.1,2, and3, or a similar UE. In the example400ofFIG.4A, FD is enabled for the UE1402, but not for the network nodes404-1,404-2. Thus, the network nodes404-1and404-2are half duplex (HD) network nodes.

The example410ofFIG.4Bincludes two UEs, UE1402-1and UE2402-2, a network node404-1, and a network node404-2. The UE1402-1is receiving a downlink transmission from the network node404-1and the UE2402-2is transmitting an uplink transmission to the network node404-1. In the example410ofFIG.4B, FD is enabled for the network node404-1, but not for the UE1402-1and UE2402-2. Thus, the UE1402-1and UE2402-2are half duplex UEs.

The example420ofFIG.4Cincludes a UE1402and a network node404, wherein the UE1402is receiving a downlink transmission from the network node404and the UE1402is transmitting an uplink transmission to the network node404. In the example420ofFIG.4C, FD is enabled for both the UE1402and the network node404. In the example420ofFIG.4C, the UE1402and the network node404communicate using a beam pair. A beam pair may include a downlink beam and an uplink beam. For example, a UE1402may use a beam pair that includes a downlink beam (that is, a receive beam) at the UE1402and an uplink beam (that is, a transmit beam) at the UE1402to communicate with the network node404. The network node404may use a downlink beam (that is, a transmit beam) at the network node404to transmit communications received via the UE1402's downlink beam, and may use an uplink beam (that is, a receive beam) at the network node404to receive communications transmitted via the UE1402's uplink beam.

The example430ofFIG.4Cincludes a network node110and two network nodes404-1and404-2associated with a cell (such as, e.g., a cell102described in connection withFIG.1). The network nodes404-1and404-2may be either co-located (e.g., located at the same device, such as at the network node110or other device), or may be non-co-located (e.g., located apart from one another and/or from the network node110, and thus may be standalone devices).

InFIGS.4A-4D, interference is indicated by dashed lines. Interference can occur between network nodes of examples400,410,420,430(referred to as cross-link interference (CLI)). InFIG.4A, network node404-2's downlink transmission interferes with network node404-1's uplink transmission. InFIG.4B, network node404-1's uplink reception may be subject to interference from a transmission by a network node404-2. CLI between network nodes404is referred to herein as inter-network node CLI. In some examples inFIG.4B, UE2402-2's uplink transmission may interfere with UE1402-1's downlink transmission (not shown). Similarly, inFIG.4D, UE2402-2's uplink transmission interferes with UE1402-1's downlink transmission. In some cases, self-interference can occur. Self-interference occurs when a node's transmission interferes with a reception operation of the node. For example, self-interference may occur due to reception by a receive antenna of radiated energy from a transmit antenna, cross-talk between components, or the like. Examples of self-interference at a UE402(from an uplink transmission to a downlink reception) and at a network node404(from a downlink transmission to an uplink reception) are shown inFIG.4C. It should be noted that the above-described CLI and self-interference conditions can occur in HD deployments and in FD deployments.

Some network nodes support sub-band full duplex (SBFD) communication, as described below. SBFD communication may involve the configuration of certain resources as having an SBFD format. Some techniques described herein provide rules (e.g., conditions) for which resources can or cannot be configured to have an SBFD format, whether a resource with a particular format can be reconfigured to have another format, and/or whether communications of a UE that does not support SBFD communication can be configured in an SBFD slot, as described elsewhere herein.

As indicated above,FIGS.4A-4Dare provided as one or more examples. Other examples may differ from what is described with regard toFIGS.4A-4D.

FIG.5is a diagram illustrating an example500of a slot format used to schedule UE communications, in accordance with the present disclosure. As described above, a transmission timeline may be organized into radio frames, subframes, slots, and symbols. However, for ease of description, only the slot and symbol granularity are depicted inFIG.5. Example500shows how time division duplexed (TDD) slots (e.g., slots on a TDD carrier) can be configured as usable for uplink and/or downlink communication using a combination of semi-static and dynamic signaling.

A timeline of slots is shown by reference number510, which includes a number of slots515a-515s. Each slot515and/or portions thereof (e.g., symbols) may be scheduled and/or configured for use for an uplink (“UL”) communication, a downlink (“DL”) communication, or as flexible (“F”). A flexible slot (e.g.,515h-515m) may be used for either an uplink communication or a downlink communication. A resource configured and/or scheduled for use for an uplink communication is described herein as having an uplink (U) format. A resource configured and/or scheduled for use for a downlink communication is described herein as having a downlink (D) format. A resource configured and/or scheduled to include only flexible resources is described herein as having a flexible (F) format. All symbols within each slot may all be assigned alike (e.g., all “UL,” all “DL,” or all “F”), or else the slot may include multiple symbol assignment types. For example, inFIG.5, slots515a-515f(denoted by “nrofDownlinkSlots”) are depicted as downlink slots without showing the symbol granularity because all symbols in each of those slots are configured as downlink symbols. Similarly, slots515o-515s(denoted by “nrofUplinkSlots”) are depicted as uplink slots without showing the symbol granularity because all symbols in each of those slots are configured as uplink symbols. In this regard, “nrofDownlinkSlots” refers to the number of consecutive full DL slots (e.g., slots including only DL symbols) at the beginning of each timeline of slots510(e.g., slots515a-515f), and “nrofUplinkSlots” refers to the number of consecutive full UL slots (e.g., slots including only UL symbols) at the end of each timeline of slots510(e.g., slots515o-515s).

Slots515gand515ninclude more than one format of symbols. More particularly, slot515gincludes six downlink symbols (denoted by “nrofDownlinkSymbols”), with the remaining eight symbols being flexible and thus available for uplink or downlink, for a total of fourteen symbols. Slot515nincludes six uplink symbols (denoted by “nrofUplinkSymbols”), with the remaining eight symbols being flexible and thus available for uplink or downlink, again for a total of fourteen symbols. In this regard, “nrofDownlinkSymbols” refers to the number of consecutive DL symbols in the beginning of the slot515gfollowing the last full DL slot515f, and “nrofUplinkSymbols” refers to the number of consecutive UL symbols in the end of the slot515npreceding the first full UL slot515o. The remaining slots in the timeline of slots510(e.g., slots515h-515m) are flexible (e.g., full flexible, with all symbols in these slots being configured as flexible symbols), and thus available for uplink and downlink communication.

Resources (e.g., slots and/or symbols) semi-statically configured as flexible may be later reconfigured for use for uplink or downlink communication. In some aspects, a common configuration parameter (e.g., tdd-UL-DL-ConfigurationCommon or similar) transmitted to all UEs in a cell defines a semi-static slot and/or symbol structure, including designating certain slots or symbols for use in uplink communication, downlink communication, or as flexible for use in either uplink or downlink communication. For example, the common configuration parameter may semi-statically configure slots and symbols to have an initial configuration as shown inFIG.5. A dedicated configuration parameter (e.g., tdd-UL-DL-ConfigurationDedicated), which can be transmitted to a specific UE via a slot format indicator (SFI), may then be used to reconfigure the flexible slots and symbols as uplink or downlink slots and symbols. In some cases, for a remaining flexible slot or symbol (e.g., slots or symbols still configured as flexible after the reconfiguration due to the dedicated configuration parameter), the UE may monitor for physical downlink control channel (PDCCH) information, and determine whether a flexible slot or symbol should be configured as an uplink slot or symbol or a downlink slot or symbol based at least in part on an uplink and/or downlink resource allocation indicated by the PDCCH information. In some cases, the flexible slots or symbols may be dynamically changed by the network node via a DCI message or a similar message (which may be referred to as a UE-dedicated configuration).

Resources (e.g., slots and/or symbols) can be configured to have an SBFD format. A resource having an SBFD format includes one or more SBFD symbols. An SBFD symbol is a symbol with one or more sub-bands (referred to herein as SBFD sub-bands) that a network node (such as a gNB) can use or will use for SBFD operation. For SBFD operation within a TDD carrier, an SBFD sub-band may include 1 resource block, or a set of consecutive resource blocks, for a same transmission direction. In some aspects, for SBFD operation within a TDD carrier, an SBFD sub-band consists of 1 resource block, or a set of consecutive resource blocks, for a same transmission direction. In some aspects, “SBFD symbols” are defined as symbols with subbands that a gNB would use for SBFD operation. In some aspects, for SBFD operation within a TDD carrier, a SBFD subband consists of 1 resource block (RB) or a set of consecutive RBs for the same transmission direction. Additional description of SBFD resources is provided in connection withFIG.6. The techniques described herein provide rules (e.g., conditions) for reconfiguring resources and/or sub-bands between the downlink format, the uplink format, the flexible format, and the SBFD format.

FIG.6is a diagram illustrating an example600of SBFD resources and communication, in accordance with the present disclosure.FIG.6shows examples605and610of SBFD resources, and an example615of a communication configuration between a network node110and UEs1and2(e.g., UEs120) using an SBFD configuration.

An SBFD resource (that is, a resource having an SBFD format) may include one or more symbols and/or one or more slots. As mentioned above, an SBFD resource may include at least one uplink sub-band (that is, a sub-band used for uplink communication by a UE) and at least one downlink sub-band (that is, a sub-band used for downlink communication by a UE). Example605includes two non-contiguous downlink sub-bands and one uplink sub-band. Example610includes one downlink sub-band and one uplink sub-band. The two downlink sub-bands of example605may be used by a single UE, or may be used by different UEs (e.g., a first UE for a first downlink sub-band and a second UE for a second downlink sub-band). As mentioned above, a sub-band may include one or multiple consecutive resource blocks associated with a transmission direction. Here, example605includes two sub-bands associated with a downlink transmission direction and one sub-band associated with an uplink transmission direction, and example610includes one sub-band associated with a downlink transmission direction and one sub-band associated with an uplink transmission direction. Examples605and610may illustrate a symbol having an SBFD format (e.g., a symbol in which there is a set of resource blocks comprising at least one downlink sub-band and a set of resource blocks comprising at least one uplink sub-band), a slot having an SBFD format (e.g., a slot in which there is at least one downlink sub-band and at least one uplink sub-band), or another time resource having an SBFD format.

In a resource with an SBFD format, a network node110may perform simultaneous transmission of downlink transmissions and reception of uplink transmissions on a sub-band basis. For example, the network node110may simultaneously communicate with UE1on the downlink and UE2on the uplink. In some examples, UE1and/or UE2may be configured with only the sub-band(s) in use by UE1and/or UE2for communication. For example, UE1may be configured with only downlink sub-bands, and UE2may be configured with only uplink sub-bands of an SBFD formatted resource. This may be because, for example, UE1and/or UE2do not have a capability for SBFD communication. In some examples, UE1and/or UE2may be configured to utilize an SBFD formatted resource. For example, if a UE has a capability for SBFD communication, the UE may be aware that a given resource has an SBFD format (while utilizing the resource in only one transmission direction), or may perform FD communication in the given resource.

A resource can be configured to an SBFD format. In some aspects, a resource may be configured to an SBFD format based at least in part on an indication of a change of a format of the resource. For example, a network node may provide signaling indicating that the format of the resource is selected as an SBFD format (similarly to how signaling may indicate that the format is an uplink format, a downlink format, or a flexible format). As another example, a network node may configure one or more sub-bands of the resource such that the resource includes at least one uplink sub-band and at least one downlink sub-band. For example, a network node may reconfigure a sub-band of a slot with a downlink format to be an uplink sub-band, thereby converting the slot to have an SBFD format.

SBFD communication may provide an increased uplink duty cycle (relative to full-band communication), leading to latency reduction (since it is possible to receive downlink signaling in uplink slots) and uplink coverage improvement. Furthermore, SBFD communication may provide enhanced system capacity, resource utilization, and spectral efficiency. Still further, SBFD communication may enable flexible and dynamic uplink/downlink resource adaptation according to uplink/downlink traffic in a robust manner.

A network node may configure a format of a set of resources (such as slots or symbols), as described above. For example, a network node may configure a resource to have an uplink format, a downlink format, a flexible format, or an SBFD format. In some circumstances, it may be beneficial for a network node to reconfigure the format of a resource of the set of resources, such as from a first format (selected from the downlink format, the uplink format, the flexible format, or the SBFD format) to a second, different format (selected from the downlink format, the uplink format, the flexible format, or the SBFD format). It may also be beneficial in some circumstances to reconfigure one or more sub-bands of a resource. However, there are situations where reconfiguring the format associated with a resource, or the sub-bands associated with the resource, may be detrimental to the operation of the network. For example, if a downlink or flexible resource is reconfigured to an SBFD or uplink format, the transmission of some downlink channels or symbols may be negatively impacted. As another example, if an uplink resource is reconfigured to an SBFD or downlink format, the transmission of some uplink transmissions may be negatively impacted. Furthermore, it may be beneficial to reconfigure a resource or sub-band from an SBFD format to another format, such as a downlink format or sub-band, an uplink format or sub-band, or a flexible format or sub-band. However, it may be detrimental to communication operations of the network to reconfigure a resource or sub-band from the SBFD format to a non-SBFD format. Reconfiguring formats of resources and/or sub-band without regard for the detrimental consequences of the reconfiguration may lead to decreased network throughput, reduced reliability, and decreased efficiency of communication.

Some techniques described herein provide conditions (e.g., rules) for configuration of a format associated with a resource (such as one or more slots or one or more symbols). In some aspects, a condition may relate to whether a resource with a downlink or flexible format can be reconfigured to an SBFD format (that is, to include an uplink sub-band). In some aspects, a condition may relate to whether a resource with an uplink format can be reconfigured to an SBFD format (that is, to include a downlink sub-band). In some aspects, a condition may relate to whether a legacy UE (that is, a UE without an SBFD capability) can be scheduled to transmit uplink communications and/or receive downlink communications in an SBFD resource. In some aspects, a condition may relate to whether an SBFD resource can be configured to fall back to a downlink format, an uplink format, and/or a flexible format. In some aspects, a condition may relate to whether a sub-band of an SBFD resource can be converted to a different format. Thus, system operation may define resources that can be configured as SBFD resources. By providing conditions for reconfiguring resources between different formats related to SBFD communication, network throughput is improved, reliability is improved, and efficiency of communication is improved.

FIG.7is a diagram illustrating an example700of signaling associated with reconfiguring a resource, in accordance with the present disclosure. Example700includes a UE (e.g., UE120) and a network node (e.g., network node110). In some aspects, the network node may include multiple network nodes, such as one or more CUs, one or more DUs, and/or one or more RUs. Operations described as being performed by the network node may be performed by one of the multiple network nodes.

As shown inFIG.7, and by reference number710, the network node may output a first configuration for a set of resources. For example, the network node may transmit, and the UE may receive, the first configuration. As another example, the network node may output the first configuration for transmission (e.g., by an RU) to the UE. The first configuration may be associated with a TDD pattern. For example, the first configuration may include a common configuration parameter and/or a dedicated configuration parameter for a TDD pattern, as described in connection withFIG.5. In some aspects, the first configuration may be a cell common configuration (that is, a common configuration parameter). In some aspects, the first configuration may include an SFI (that is, a dedicated configuration parameter). In some aspects, the first configuration may include a UE-dedicated configuration. The first configuration may configure the set of resources to an uplink format, a downlink format, or a flexible format. For example, a full bandwidth of the set of resources may be configured to one of the uplink format, the downlink format, or the flexible format. The set of resources may include one or more time resources, such as one or more slots, one or more symbols, or a combination thereof.

As shown by reference number720, the network node may output a second configuration configuring one or more resources, of the set of resources, to an SBFD format. The second configuration may configure the one or more resources (e.g., one or more slots, one or more symbols, or a combination thereof) to the SBFD format based at least in part on the one or more resources satisfying a condition. The condition may define one or more rules for reconfiguring a resource or a sub-band of a resource from a first format (or sub-band) to a second format (or sub-band). In some aspects, the condition may indicate one or more formats or sub-bands to which a resource can be reconfigured, based at least in part on an original (e.g., prior to reconfiguration) format or sub-band of the resource. In some aspects, the condition may indicate one or more formats or sub-bands to which a resource cannot be reconfigured, based at least in part on an original (e.g., prior to reconfiguration) format or sub-band of the resource. In some aspects, the condition may indicate one or more formats or sub-bands to which a resource can or cannot be reconfigured, based at least in part on whether the resource is associated with a restricted use. Particular examples of the condition are provided in connection with reference numbers730,740,780, and790.

As shown by reference number730, in some aspects, the second configuration may configure an SBFD format in a resource with a downlink format or a flexible format. For example, the second configuration may explicitly change the resource's format to an SBFD format, or may configure an uplink sub-band in the resource. For example, the second configuration may configure the SBFD format or the uplink sub-band in accordance with the condition. In some aspects, the condition indicates that any resource configured in the flexible format or the downlink format can be configured to the SBFD format. For example, an SBFD format or an uplink sub-band may be allowed to be configured in all downlink symbols or slots and all flexible symbols or slots.

In some aspects, the condition indicates that resources configured in the flexible format or the downlink format, and not associated with a restricted use, can be configured to the SBFD format. For example, an SBFD format or an uplink sub-band may be allowed to be configured in downlink symbols or slots and flexible symbols or slots, but not all downlink symbols or slots. A restricted use is a use (such as a transmission, reception, or configuration) of a resource that renders the resource unsuitable for reconfiguration to an SBFD format. In some aspects, the restricted use may include at least one of a synchronization signal block transmission (e.g., symbols or slots including a synchronization signal block transmission), a control resource set associated with a control channel for a system information block (e.g., symbols or slots including a control resource set (CORESET) zero), a common search space (CSS) control channel transmission (e.g., symbols or slots in which a CSS physical downlink control channel (PDCCH) is configured), a shared channel transmission scheduled via a common search space control channel transmission (e.g., symbols or slots in which a CSS-PDCCH scheduled physical downlink shared channel (PDSCH) is scheduled), a common reference signal transmission (e.g., a tracking reference signal (TRS) transmission), or a common semi-persistent scheduling (SPS transmission (such as for broadcasting a signal). Thus, negative impact on transmissions, receptions, and configurations of resources associated with restricted uses is reduced, thereby increasing throughput and reliability of communications.

As shown by reference number740, in some aspects, the second configuration may configure an SBFD format in a resource having an uplink format. For example, the second configuration may explicitly change the resource's format to an SBFD format, or may configure a downlink sub-band in the resource. In some aspects, the second configuration may configure the SBFD format or the downlink sub-band in accordance with the condition. For example, the second configuration may configure the SBFD format or the downlink sub-band in the resource only if the condition indicates that the SBFD format or the downlink sub-band can be configured in the resource.

In some aspects, the condition indicates that resources configured in the uplink format, and not associated with a restricted use, can be configured to the SBFD format. For example, an SBFD format or a downlink sub-band may be allowed to be configured in some uplink resources but not all uplink resources. In this context (e.g., for resources configured in the uplink format), the restricted use may include at least one of a random access channel occasion, a sounding reference signal (SRS) transmission, or a physical uplink control channel (PUCCH) transmission. Thus, negative impact on transmissions, receptions, and configurations of resources associated with restricted uses is reduced, thereby increasing throughput and reliability of communications. In some aspects, the condition indicates that resources configured in the uplink format cannot be configured to the SBFD format. In this case, the network node may not configure a resource, in the uplink format, to the SBFD format or to include a downlink sub-band. Thus, stability of resources configured in the uplink format may be increased, which improves predictability of network traffic and configuration.

As shown by reference number750, the network node may schedule a downlink transmission or an uplink transmission of the UE. For example, the network node may transmit DCI scheduling the downlink transmission or the uplink transmission.

In some aspects, the UE is not associated with an SBFD capability. Such a UE may be referred to as a legacy UE (relative to a ULE that is associated with an SBFD capability). In some aspects, the uplink transmission is permitted to be scheduled only in resources having the uplink format or the flexible format. In such aspects, for example, the uplink transmission may not be permitted to be scheduled in resources having the SBFD format (e.g., for UEs not associated with SBFD capabilities). Thus, legacy UEs (without an SBFD capability) may only be allowed to transmit uplink transmissions in uplink symbols or flexible symbols, not in SBFD symbols.

In some aspects, for a ULE that is not associated with an SBFD capability (e.g., a legacy UE), the uplink transmission is permitted to be scheduled in an uplink sub-band of a resource having an SBFD format (e.g., only in the uplink sub-band). For example, a legacy UE may be allowed to transmit uplink transmissions in SBFD resources, with SBFD operation at the network node, in an uplink sub-band only. Thus, the network node can implement SBFD communication in an SBFD resource for legacy UEs performing one-directional communication, which improves resource utilization at the network node and compatibility with legacy UEs.

In some aspects, for a ULE that is not associated with an SBFD capability (e.g., a legacy UE), the downlink transmission is permitted to be scheduled only in resources having the downlink format or the flexible format. For example, the downlink transmission may not be permitted to be scheduled in resources having the SBFD format. Thus, a legacy UE can be scheduled to receive downlink transmissions only in downlink or flexible resources, not in SBFD resources.

In some aspects, for a ULE that is not associated with an SBFD capability (e.g., a legacy UE), the downlink transmission is permitted to be scheduled in a downlink sub-band of the resource having the SBFD format. For example, a legacy UE may be allowed to receive a downlink transmission in an SBFD resource, with SBFD operation at the network node, in a downlink sub-band only. Thus, the network node can implement SBFD communication in an SBFD resource for legacy UEs performing one-directional communication, which improves resource utilization at the network node and compatibility with legacy UEs.

As shown by reference number760, the UE and the network node may perform the downlink transmission or the uplink transmission. For example, the UE may transmit, and the network node may receive, the uplink transmission. As another example, the network node may transmit, and the UE may receive, the downlink transmission.

As shown by reference number770, in some aspects, the network node may output a third configuration. The third configuration may configure a resource, or a sub-band of a resource, from the SBFD format to another format based at least in part on the one or more resources satisfying a condition. As described above, the condition may define one or more rules for reconfiguring a resource or a sub-band of a resource from a first format (or sub-band) to a second format (or sub-band). The third configuration may be a cell common configuration, an SFI based configuration, or a UE-dedicated configuration.

As shown by reference number780, in some aspects, the third configuration may configure the resource, configured by the second configuration with an SBFD format, to have a downlink format, an uplink format, or a flexible format. Configuring a resource with an SBFD format to have a downlink format, an uplink format, or a flexible format, may be referred to as “falling back” to the downlink format, the uplink format, or the flexible format. The third configuration may configure the resource in accordance with the condition described above in connection with reference number720. Particular examples of the condition are provided below.

In some aspects, the condition indicates that the resource having the SBFD format is not permitted to be reconfigured to the downlink format, the uplink format, or the flexible format. For example, an SBFD resource may not be allowed to fall back to a downlink format, an uplink format, or a flexible format. In this example, the network node may not transmit a third configuration reconfiguring an SBFD resource as a downlink resource, an uplink resource, or a flexible resource.

In some aspects, the condition indicates that the resource having the SBFD format is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration. For example, the condition may indicate whether or not a resource having the SBFD format as configured by a UE-dedicated configuration (e.g., RRC signaling specific to the UE) is permitted to be reconfigured to the downlink format, the uplink format, or the flexible format. Additionally, or alternatively, the condition may indicate whether or not a resource having the SBFD format as configured by an SFI is permitted to be reconfigured to the downlink format, the uplink format, or the flexible format. Additionally, or alternatively, the condition may indicate whether or not a resource having the SBFD format as configured by a cell common configuration is permitted to be reconfigured to the downlink format, the uplink format, or the flexible format.

In some aspects, the third configuration may reconfigure the resource having the SBFD format to at least one of the downlink format, the uplink format, or the flexible format. For example, the third configuration may include an indication to reconfigure the resource having the SBFD format. In some aspects, the condition may indicate that a resource having the SBFD format is allowed to be reconfigured to the downlink format. In some aspects, the condition may indicate that a resource having the SBFD format is allowed to be reconfigured to the uplink format. In some aspects, the condition may indicate that a resource having the SBFD format is allowed to be reconfigured to the flexible format. In some aspects, the condition may indicate that a resource having the SBFD format can be reconfigured to any of a downlink format, an uplink format, or a flexible format.

In some aspects, the condition may indicate whether a resource associated with an SBFD format can be reconfigured based at least in part on whether the second configuration (e.g., a configuration of the resource as associated with the SBFD format) is a UE-dedicated configuration, an SFI based configuration, or a cell common configuration. For example, the condition may indicate that a resource having the SBFD format as configured by a UE-dedicated configuration is permitted to be reconfigured to the downlink format, the uplink format, and/or the flexible format. Additionally, or alternatively, the condition may indicate that a resource having the SBFD format as configured by an SFI is permitted to be reconfigured to the downlink format, the uplink format, and/or the flexible format. Additionally, or alternatively, the condition may indicate that a resource having the SBFD format as configured by a cell common configuration is permitted to be reconfigured to the downlink format, the uplink format, and/or the flexible format.

As shown by reference number790, in some aspects, the second configuration may configure a sub-band of the resource, configured by the second configuration with an SBFD format, to be a downlink sub-band, an uplink sub-band, or a flexible sub-band. The third configuration may configure the resource in accordance with the condition described above in connection with reference number720. Particular examples of the condition, relating to reconfiguration of sub-bands of a resource with an SBFD format, are provided below.

In some aspects, the condition indicates that a sub-band of the resource having the SBFD format is not permitted to be reconfigured to any of a downlink sub-band, an uplink sub-band, or a flexible sub-band. In this example, the network node may not reconfigure the sub-band of the resource having the SBFD format to be a downlink sub-band, an uplink sub-band, or a flexible sub-band. In some aspects, the condition may indicate that an uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a downlink sub-band. Additionally, or alternatively, the condition may indicate that a downlink sub-band of the resource in the SBFD format is not permitted to be reconfigured to an uplink sub-band. Additionally, or alternatively, the condition may indicate that a downlink sub-band or an uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a flexible sub-band. Additionally, or alternatively, the condition may indicate that a downlink or uplink sub-band of the resource in the SBFD format is permitted to be reconfigured to a flexible sub-band, a downlink sub-band, or an uplink sub-band.

In some aspects, the condition (as described with respect to reconfiguration of sub-bands of an SBFD resource) indicates whether or not a sub-band is permitted to be reconfigured to at least one of the downlink sub-band, the uplink sub-band, or the flexible sub-band based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration. For example, the condition may indicate whether or not a sub-band of a resource having the SBFD format as configured by a UE-dedicated configuration is permitted to be reconfigured to a downlink sub-band, an uplink sub-band, and/or a flexible sub-band. Additionally, or alternatively, the condition may indicate whether or not a sub-band of a resource having the SBFD format as configured by an SFI is permitted to be reconfigured to a downlink sub-band, an uplink sub-band, and/or a flexible sub-band. Additionally, or alternatively, the condition may indicate whether or not a sub-band of a resource having the SBFD format as configured by a cell common configuration is permitted to be reconfigured to a downlink sub-band, an uplink sub-band, and/or a flexible sub-band.

As shown by reference number795, the UE and the network node may communicate on the one or more resources. For example, the UE may transmit, and the network node may receive, an uplink transmission if the resource is configured as an uplink resource, or if the UE is scheduled to transmit the uplink transmission on an uplink sub-band of the resource. As another example, the network node may transmit, and the UE may receive, a downlink transmission if the resource is configured as a downlink resource, or if the UE is scheduled to receive the downlink transmission on a downlink sub-band of the resource.

FIG.8is a diagram illustrating an example process800performed, for example, by a network node, in accordance with the present disclosure. Example process800is an example where the network node (e.g., network node110, a CU, a DU, an RU, or a combination thereof) performs operations associated with sub-band full duplex resource configuration.

As shown inFIG.8, in some aspects, process800may include outputting a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format (block810). For example, the network node (e.g., using communication manager150and/or configuration component1008, depicted inFIG.10) may output a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format, as described above.

As further shown inFIG.8, in some aspects, process800may include outputting a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition (block820). For example, the network node (e.g., using communication manager150and/or configuration component1008, depicted inFIG.10) may output a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition, as described above.

In a first aspect, the SBFD format includes at least one downlink sub-band and at least one uplink sub-band in a same symbol.

In a second aspect, alone or in combination with the first aspect, the condition indicates that any resource configured in the flexible format or the downlink format can be configured to the SBFD format.

In a third aspect, alone or in combination with one or more of the first and second aspects, the condition indicates that resources configured in the flexible format or the downlink format, and not associated with a restricted use, can be configured to the SBFD format.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the restricted use includes at least one of a synchronization signal block transmission, a control resource set associated with a control channel for a system information block, a common search space control channel transmission, a shared channel transmission scheduled via a common search space control channel transmission, a common reference signal transmission, or a common semi-persistent scheduling transmission.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the condition indicates that resources configured in the uplink format cannot be configured to the SBFD format.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the condition indicates that resources configured in the uplink format, and not associated with a restricted use, can be configured to the SBFD format.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the restricted use includes at least one of a random access channel occasion, a sounding reference signal transmission, or a physical uplink control channel transmission.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, process800includes scheduling an uplink transmission of a UE that is not associated with an SBFD capability, wherein the uplink transmission is permitted to be scheduled only in resources having the uplink format or the flexible format.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the uplink transmission is not permitted to be scheduled in resources having the SBFD format.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, process800includes scheduling an uplink transmission of a UE that is not associated with an SBFD capability, wherein the uplink transmission is permitted to be scheduled in an uplink sub-band of the resource having the SBFD format.

In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, process800includes scheduling a downlink transmission of a UE that is not associated with an SBFD capability, wherein the downlink transmission is permitted to be scheduled only in resources having the downlink format or the flexible format.

In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the downlink transmission is not permitted to be scheduled in resources having the SBFD format.

In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, process800includes scheduling a downlink transmission of a UE that is not associated with an SBFD capability, wherein the downlink transmission is permitted to be scheduled in a downlink sub-band of the resource having the SBFD format.

In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the condition indicates that the resource having the SBFD format is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format.

In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the condition indicates that the resource having the SBFD format is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.

In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, process800includes transmitting an indication to reconfigure the resource having the SBFD format to at least one of the downlink format, the uplink format, or the flexible format.

In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, reconfiguring the resource is based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.

In an eighteenth aspect, alone or in combination with one or more of the first through seventeenth aspects, the condition indicates that a sub-band of the resource having the SBFD format is not permitted to be reconfigured to at least one of a downlink sub-band, an uplink sub-band, or a flexible sub-band.

In a nineteenth aspect, alone or in combination with one or more of the first through eighteenth aspects, the condition indicates that the sub-band is not permitted to be reconfigured to at least one of the downlink sub-band, the uplink sub-band, or the flexible sub-band based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.

In a twentieth aspect, alone or in combination with one or more of the first through nineteenth aspects, the condition indicates that an uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a downlink sub-band.

In a twenty-first aspect, alone or in combination with one or more of the first through twentieth aspects, the condition indicates that a downlink sub-band of the resource in the SBFD format is not permitted to be reconfigured to an uplink sub-band.

In a twenty-second aspect, alone or in combination with one or more of the first through twenty-first aspects, the condition indicates that a downlink or uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a flexible sub-band.

In a twenty-third aspect, alone or in combination with one or more of the first through twenty-second aspects, the condition indicates that a downlink or uplink sub-band of the resource in the SBFD format is permitted to be reconfigured to a flexible sub-band, a downlink sub-band, or an uplink sub-band.

FIG.9is a diagram illustrating an example process900performed, for example, by a UE, in accordance with the present disclosure. Example process900is an example where the UE (e.g., UE120) performs operations associated with sub-band full duplex resource configuration.

As shown inFIG.9, in some aspects, process900may include receiving a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format (block910). For example, the UE (e.g., using communication manager140and/or reception component1102, depicted inFIG.11) may receive a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format, as described above.

As further shown inFIG.9, in some aspects, process900may include receiving a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format (block920). For example, the UE (e.g., using communication manager140and/or reception component1102, depicted inFIG.1) may receive a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format, as described above.

As further shown inFIG.9, in some aspects, process900may include communicating on the one or more resources (block930). For example, the UE (e.g., using communication manager140and/or transmission component1104or reception component1102, depicted inFIG.11) may communicate on the one or more resources, as described above.

In a first aspect, the SBFD format includes at least one downlink sub-band and at least one uplink sub-band in a same symbol.

In a second aspect, alone or in combination with the first aspect, the condition indicates that any resource configured in the flexible format or the downlink format can be configured to the SBFD format.

In a third aspect, alone or in combination with one or more of the first and second aspects, the condition indicates that resources configured in the flexible format or the downlink format, and not associated with a restricted use, can be configured to the SBFD format.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the restricted use includes at least one of a synchronization signal block transmission, a control resource set associated with a control channel for a system information block, a common search space control channel transmission, a shared channel transmission scheduled via a common search space control channel transmission, a common reference signal transmission, or a common semi-persistent scheduling transmission.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the condition indicates that resources configured in the uplink format cannot be configured to the SBFD format.

In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the condition indicates that resources configured in the uplink format, and not associated with a restricted use, can be configured to the SBFD format.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the restricted use includes at least one of a random access channel occasion, a sounding reference signal transmission, or a physical uplink control channel transmission.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, process900includes receiving downlink control information scheduling an uplink transmission of the UE, wherein the UE is not associated with an SBFD capability, and wherein the uplink transmission is permitted to be scheduled only in resources having the uplink format or the flexible format.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the uplink transmission is not permitted to be scheduled in resources having the SBFD format.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, process900includes receiving downlink control information scheduling an uplink transmission, wherein the UE is not associated with an SBFD capability, and wherein the uplink transmission is permitted to be scheduled in an uplink sub-band of the resource having the SBFD format.

In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, process900includes receiving downlink control information scheduling a downlink transmission, wherein the UE is not associated with an SBFD capability, and wherein the downlink transmission is permitted to be scheduled only in resources having the downlink format or the flexible format.

In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the downlink transmission is not permitted to be scheduled in resources having the SBFD format.

In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, process900includes receiving downlink control information scheduling a downlink transmission, wherein the UE is not associated with an SBFD capability, and wherein the downlink transmission is permitted to be scheduled in a downlink sub-band of the resource having the SBFD format.

In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the condition indicates that the resource having the SBFD format is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format.

In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the condition indicates that the resource is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.

In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, process900includes receiving an indication to reconfigure the resource to at least one of the downlink format, the uplink format, or the flexible format.

In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, the indication is based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.

In an eighteenth aspect, alone or in combination with one or more of the first through seventeenth aspects, the condition indicates that a sub-band of the resource in the SBFD format is not permitted to be reconfigured to at least one of a downlink sub-band, an uplink sub-band, or a flexible sub-band.

In a nineteenth aspect, alone or in combination with one or more of the first through eighteenth aspects, the condition indicates that the sub-band is not permitted to be reconfigured to at least one of a downlink sub-band, an uplink sub-band, or a flexible sub-band based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.

In a twentieth aspect, alone or in combination with one or more of the first through nineteenth aspects, the condition indicates that an uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a downlink sub-band.

In a twenty-first aspect, alone or in combination with one or more of the first through twentieth aspects, the condition indicates that a downlink sub-band of the resource in the SBFD format is not permitted to be reconfigured to an uplink sub-band.

In a twenty-second aspect, alone or in combination with one or more of the first through twenty-first aspects, the condition indicates that a downlink or uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a flexible sub-band.

In a twenty-third aspect, alone or in combination with one or more of the first through twenty-second aspects, the condition indicates that a downlink or uplink sub-band of the resource in the SBFD format is permitted to be reconfigured to a flexible sub-band, a downlink sub-band, or an uplink sub-band.

The configuration component1008may output a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The configuration component1008may output a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition.

The reception component1102may receive a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format. The reception component1102may receive a second configuration configuring one or more resources, of the set of resources, to an SBFD format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format. The reception component1102or the transmission component1104may communicate on the one or more resources.

The following provides an overview of some Aspects of the present disclosure:Aspect 1: A method of wireless communication performed by a network node, comprising: outputting a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format; and outputting a second configuration configuring one or more resources, of the set of resources, to a sub-band full duplex (SBFD) format based at least in part on the one or more resources satisfying a condition.Aspect 2: The method of Aspect 1, wherein the SBFD format includes at least one downlink sub-band and at least one uplink sub-band in a same symbol.Aspect 3: The method of any of Aspects 1-2, wherein the condition indicates that any resource configured in the flexible format or the downlink format can be configured to the SBFD format.Aspect 4: The method of any of Aspects 1-3, wherein the condition indicates that resources configured in the flexible format or the downlink format, and not associated with a restricted use, can be configured to the SBFD format.Aspect 5: The method of Aspect 4, wherein the restricted use includes at least one of: a synchronization signal block transmission, a control resource set associated with a control channel for a system information block, a common search space control channel transmission, a shared channel transmission scheduled via a common search space control channel transmission, a common reference signal transmission, or a common semi-persistent scheduling transmission.Aspect 6: The method of any of Aspects 1-5, wherein the condition indicates that resources configured in the uplink format cannot be configured to the SBFD format.Aspect 7: The method of any of Aspects 1-6, wherein the condition indicates that resources configured in the uplink format, and not associated with a restricted use, can be configured to the SBFD format.Aspect 8: The method of Aspect 7, wherein the restricted use includes at least one of: a random access channel occasion, a sounding reference signal transmission, or a physical uplink control channel transmission.Aspect 9: The method of any of Aspects 1-8, further comprising: scheduling an uplink transmission of a user equipment that is not associated with an SBFD capability, wherein the uplink transmission is permitted to be scheduled only in resources having the uplink format or the flexible format.Aspect 10: The method of Aspect 9, wherein the uplink transmission is not permitted to be scheduled in resources having the SBFD format.Aspect 11: The method of any of Aspects 1-10, further comprising: scheduling an uplink transmission of a user equipment that is not associated with an SBFD capability, wherein the uplink transmission is permitted to be scheduled in an uplink sub-band of the resource having the SBFD format.Aspect 12: The method of any of Aspects 1-11, further comprising: scheduling a downlink transmission of a user equipment that is not associated with an SBFD capability, wherein the downlink transmission is permitted to be scheduled only in resources having the downlink format or the flexible format.Aspect 13: The method of Aspect 12, wherein the downlink transmission is not permitted to be scheduled in resources having the SBFD format.Aspect 14: The method of any of Aspects 1-11, further comprising: scheduling a downlink transmission of a user equipment that is not associated with an SBFD capability, wherein the downlink transmission is permitted to be scheduled in a downlink sub-band of the resource having the SBFD format.Aspect 15: The method of any of Aspects 1-14, wherein the condition indicates that the resource having the SBFD format is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format.Aspect 16: The method of Aspect 15, wherein the condition indicates that the resource having the SBFD format is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format based at least in part on whether the second configuration is a user equipment dedicated configuration, a slot format indication based configuration, or a cell common configuration.Aspect 17: The method of any of Aspects 1-16, further comprising transmitting an indication to reconfigure the resource having the SBFD format to at least one of: the downlink format, the uplink format, or the flexible format.Aspect 18: The method of Aspect 13, wherein reconfiguring the resource is based at least in part on whether the second configuration is a user equipment dedicated configuration, a slot format indication based configuration, or a cell common configuration.Aspect 19: The method of any of Aspects 1-18, wherein the condition indicates that a sub-band of the resource having the SBFD format is not permitted to be reconfigured to at least one of a downlink sub-band, an uplink sub-band, or a flexible sub-band.Aspect 20: The method of Aspect 17, wherein the condition indicates that the sub-band is not permitted to be reconfigured to at least one of the downlink sub-band, the uplink sub-band, or the flexible sub-band based at least in part on whether the second configuration is a user equipment dedicated configuration, a slot format indication based configuration, or a cell common configuration.Aspect 21: The method of any of Aspects 1-20, wherein the condition indicates that an uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a downlink sub-band.Aspect 22: The method of any of Aspects 1-21, wherein the condition indicates that a downlink sub-band of the resource in the SBFD format is not permitted to be reconfigured to an uplink sub-band.Aspect 23: The method of any of Aspects 1-22, wherein the condition indicates that a downlink or uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a flexible sub-band.Aspect 24: The method of any of Aspects 1-23, wherein the condition indicates that a downlink or uplink sub-band of the resource in the SBFD format is permitted to be reconfigured to a flexible sub-band, a downlink sub-band, or an uplink sub-band.Aspect 25: A method of wireless communication performed by a user equipment (UE), comprising: receiving a first configuration for a set of resources, the first configuration being associated with a time division duplexing pattern, and the first configuration configuring the set of resources to one of an uplink format, a downlink format, or a flexible format; receiving a second configuration configuring one or more resources, of the set of resources, to a sub-band full duplex (SBFD) format based at least in part on the one or more resources satisfying a condition associated with configuring the one or more resources to the SBFD format; and communicating on the one or more resources.Aspect 26: The method of Aspect 25, wherein the SBFD format includes at least one downlink sub-band and at least one uplink sub-band in a same symbol.Aspect 27: The method of any of Aspects 25-26, wherein the condition indicates that any resource configured in the flexible format or the downlink format can be configured to the SBFD format.Aspect 28: The method of any of Aspects 25-27, wherein the condition indicates that resources configured in the flexible format or the downlink format, and not associated with a restricted use, can be configured to the SBFD format.Aspect 29: The method of Aspect 28, wherein the restricted use includes at least one of: a synchronization signal block transmission, a control resource set associated with a control channel for a system information block, a common search space control channel transmission, a shared channel transmission scheduled via a common search space control channel transmission, a common reference signal transmission, or a common semi-persistent scheduling transmission.Aspect 30: The method of any of Aspects 25-29, wherein the condition indicates that resources configured in the uplink format cannot be configured to the SBFD format.Aspect 31: The method of any of Aspects 25-30, wherein the condition indicates that resources configured in the uplink format, and not associated with a restricted use, can be configured to the SBFD format.Aspect 32: The method of Aspect 31, wherein the restricted use includes at least one of: a random access channel occasion, a sounding reference signal transmission, or a physical uplink control channel transmission.Aspect 33: The method of any of Aspects 25-32, further comprising: receiving downlink control information scheduling an uplink transmission of the UE, wherein the UE is not associated with an SBFD capability, and wherein the uplink transmission is permitted to be scheduled only in resources having the uplink format or the flexible format.Aspect 34: The method of Aspect 33, wherein the uplink transmission is not permitted to be scheduled in resources having the SBFD format.Aspect 35: The method of any of Aspects 25-34, further comprising: receiving downlink control information scheduling an uplink transmission, wherein the UE is not associated with an SBFD capability, and wherein the uplink transmission is permitted to be scheduled in an uplink sub-band of the resource having the SBFD format.Aspect 36: The method of any of Aspects 25-35, further comprising: receiving downlink control information scheduling a downlink transmission, wherein the UE is not associated with an SBFD capability, and wherein the downlink transmission is permitted to be scheduled only in resources having the downlink format or the flexible format.Aspect 37: The method of Aspect 36, wherein the downlink transmission is not permitted to be scheduled in resources having the SBFD format.Aspect 38: The method of any of Aspects 25-37, further comprising: receiving downlink control information scheduling a downlink transmission, wherein the UE is not associated with an SBFD capability, and wherein the downlink transmission is permitted to be scheduled in a downlink sub-band of the resource having the SBFD format.Aspect 39: The method of any of Aspects 25-38, wherein the condition indicates that the resource having the SBFD format is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format.Aspect 40: The method of Aspect 39, wherein the condition indicates that the resource is not permitted to be reconfigured to the downlink format, the uplink format or the flexible format based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.Aspect 41: The method of any of Aspects 25-40, further comprising receiving an indication to reconfigure the resource to at least one of: the downlink format, the uplink format, or the flexible format.Aspect 42: The method of Aspect 41, wherein the indication is based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.Aspect 43: The method of any of Aspects 25-42, wherein the condition indicates that a sub-band of the resource in the SBFD format is not permitted to be reconfigured to at least one of a downlink sub-band, an uplink sub-band, or a flexible sub-band.Aspect 44: The method of Aspect 43, wherein the condition indicates that the sub-band is not permitted to be reconfigured to at least one of a downlink sub-band, an uplink sub-band, or a flexible sub-band based at least in part on whether the second configuration is a UE-dedicated configuration, a slot format indication based configuration, or a cell common configuration.Aspect 45: The method of any of Aspects 25-44, wherein the condition indicates that an uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a downlink sub-band.Aspect 46: The method of any of Aspects 25-45, wherein the condition indicates that a downlink sub-band of the resource in the SBFD format is not permitted to be reconfigured to an uplink sub-band.Aspect 47: The method of any of Aspects 25-46, wherein the condition indicates that a downlink or uplink sub-band of the resource in the SBFD format is not permitted to be reconfigured to a flexible sub-band.Aspect 48: The method of any of Aspects 25-47, wherein the condition indicates that a downlink or uplink sub-band of the resource in the SBFD format is permitted to be reconfigured to a flexible sub-band, a downlink sub-band, or an uplink sub-band.Aspect 49: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of Aspects 1-48.Aspect 50: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of Aspects 1-48.Aspect 51: An apparatus for wireless communication, comprising at least one means for performing the method of one or more of Aspects 1-48.Aspect 52: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of Aspects 1-48.Aspect 53: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-48.