Abstract: Certain aspects of the present disclosure provide techniques for validity of random access channel (RACH) occasions (ROs) in subband full duplex (SBFD) slots. An example method, performed at a user equipment (UE), generally includes receiving a random access channel (RACH) configuration and a subband full duplex (SBFD) configuration, wherein the RACH configuration indicates one or more RACH occasions (ROs) and the SBFD configuration indicates at least one SBFD slot, processing a synchronization signal block (SSB) mapped to at least one first RO of the one or more ROs, determining the at least one first RO in the at least one SBFD slot is valid, based on the RACH configuration, the SBFD configuration, and the mapping, and transmitting a RACH preamble on the at least one first valid RO.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical random access channel (PRACH) configuration for a random access procedure in subband full duplex (SBFD) symbols. The UE may transmit signaling in accordance with the random access procedure based at least in part on the PRACH configuration. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques may allow for a network entity to indicate to a user equipment (UE) to use a subband full-duplex (SBFD) random access channel (RACH) configuration or a time division duplex (TDD) PRACH configuration. For example, a control message (e.g., a downlink control information (DCI) or radio resource control (RRC) message) may include a bitfield that indicates which PRACH configuration for the UE to use. Additionally, or alternatively, the UE may select a PRACH configuration based on a capability of the UE to perform the SBFD PRACH configuration, or based on a PRACH configuration indicating RACH occasions that are earliest in time. Additionally, or alternatively, the PDCCH order message may indicate for the UE to transmit the first message multiple times via one or both of the SBFD PRACH configuration or the TDD PRACH configuration.

Abstract: A UE may estimate a CLI channel state based on a ZP-SRS from a second UE. A network node may transmit to the UE, and the UE may receive from the network node, a CSI-RS. The UE may estimate a downlink channel state based on the CSI-RS from the network node. The UE may estimate one or more eCSF parameters based on the CLI channel state, the downlink channel state, two or more interference hypotheses, and at least one of a CPU specification, a timing specification, or a UE capability indication. The UE may transmit to the network node, and the network node may receive from the UE, an eCSF report based on the one or more eCSF parameters.

Abstract: Certain aspects of the present disclosure provide techniques for inter-slot and intra-slot frequency hopping in full duplex. A method performed by a user equipment (UE) includes receiving scheduling information from a network entity, wherein the scheduling information schedules transmission of a plurality of uplink data channel repetitions in a plurality of slots according to a frequency hopping scheme that configures frequency hops between transmissions of repetitions of the plurality of uplink data channel repetitions. The method also includes taking one or more actions related to transmitting, according to the frequency hopping scheme, the plurality of uplink data channel repetitions in the plurality of slots based on the scheduling information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) that schedules an uplink communication in an uplink frequency band. The UE may transmit, at an uplink frequency within the uplink frequency band, the uplink communication with a power that varies over the uplink frequency band based at least in part on a location of the uplink frequency relative to a downlink frequency band associated with the UE. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a set of valid RACH occasions of a plurality of RACH occasions, wherein the set of valid RACH occasions includes one or more first valid RACH occasions on one or more uplink symbols and an uplink sub-band in a downlink symbol. The UE may identify a first set of synchronization signal block (SSB) indexes associated with the one or more first valid RACH occasions and a second set of SSB indexes associated with the one or more second valid RACH occasions. The UE may transmit a RACH message on a valid RACH occasion of the set of valid RACH occasions, the valid RACH occasion corresponding to an SSB index. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of whether the UE belongs to a group of all full-duplex (FD) aware UEs or a group of a mix of FD-aware UEs and half-duplex UEs. The UE may perform an action according to which group the UE belongs. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more configurations for a first set of random access channel (RACH) occasions (ROs) and a second set of ROs. The UE may transmit a first transmission in the first set of ROs. The UE may select between the first set of ROs and the second set of ROs based at least in part on a rule. The UE may transmit a retransmission in the selected set of ROs. Numerous other aspects are described.

Abstract: Apparatus, methods, and computer program products for cross-link interference (CLI) measurements are provided. An example method may include receiving, from a second network entity, a configuration of a set of semi-persistent (SP) or periodic (P) (SP/P) CLI measurement resources for layer 2 (L2) CLI measurement, where the set of SP/P CLI measurement resources are associated with one or more measurement resource types including at least one of: a zero power sounding reference signal (ZP SRS), a channel state information (CSI) interference measurement (CSI IM) resource, a non-zero power (NZP) CSI reference signal (CSI RS), or a combination of the NZP CSI RS and CSI IM, where the one or more measurement resource types are tied to at least one respective CLI reporting metric or not tied to the respective CLI reporting metric.

Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media to measure performance of distinct paths of a network. A method includes determining a collection of hashes of a network based on a network probe event, each hash in the collection of hashes corresponding to a distinct path from a first edge device to a second edge device through the network; transmitting a collection of probes from the first edge device in the network, wherein each probe in the collection of probes is assigned a hash selected from the collection of hashes; receiving probes from the collection of probes at the second edge device; and determining a network performance of each distinct path through the network.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first message identifying a duplexing pattern that allocates a first subband for uplink communications and a second subband for flexible communications during subband full-duplex (SBFD) time periods. The UE may receive a second message identifying a modified duplexing pattern, wherein the modified duplexing pattern allocates a subset of the SBFD time periods for the uplink communications or for downlink communications. The UE may perform, during one or more SBFD time periods in the subset of the SBFD time periods, the uplink communications or the downlink communications in accordance with the modified duplexing pattern, wherein the uplink communications or the downlink communications are performed in one or both of the first subband and in the second subband.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit channel state information (CSI) that is based on an estimated cross link interference (CLI) at the UE. For example, a network entity may indicate, to a first UE and a second UE, transmission parameters of a multi-port CLI-reference signal (CLI-RS) that is associated with estimation of CLI channel between the first UE and the second UE. The network entity may indicate, to the first UE, one or more precoding parameters associated with uplink precoding at the second UE. The second UE may transmit the multi-port CLI-RS to the first UE, and the network entity may transmit a CSI-reference signal (CSI-RS) to the first UE. The first UE may transmit a report that includes CSI based on the multi-port CLI-RS, the CSI-RS, and the one or more precoding parameters.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a full-duplex user equipment (UE) may identify timing for performing an interference measurement based at least in part on a scheduled uplink transmission time. The full-duplex UE may perform, in a particular symbol and in accordance with the timing for performing the interference measurement, a self-interference measurement and a cross-link interference measurement. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) with full-duplex capabilities may be configured with a self-interference threshold to be used for full-duplex communication during concurrent reception of a reference signal and transmission of an uplink communication. The UE may receive an allocation of uplink and downlink resources for full-duplex communication within the same time resource using a first set of parameters. If the uplink and downlink resources satisfy the self-interference threshold, the UE may communicate, within the time resource, via the uplink resources, to transmit an uplink communication, and the downlink resources, to receive a reference signal, using a second set of parameters.

Abstract: To analytically determine concentration of dissolved gases in a water pipeline, a water sample is drawn from a source carrying water with dissolved gas, through a water source port of a four-way valve. The water sample is flowed from the water source port towards a syringe port of the valve and into a syringe fluidically coupled to the syringe port to hold the water sample. Inert gas is drawn through an inert gas port of the valve from an inert gas source and is flowed from the inert gas port towards the syringe port and into the syringe. A mixture of the water sample and the inert gas is flowed from the syringe port towards an analyzer port of the valve and into an analyzer fluidically coupled to the analyzer port.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a control message indicating full-duplex (FD)-related resources allocated for one or more uplink shared channel messages and that correspond to a set of multiple uplink transmission occasions within a time period of a configured grant (CG) configuration. The UE may transmit, using at least one of the uplink transmission occasions in accordance with the CG configuration, an uplink control information (UCI) message including an indication of a quantity of unused uplink transmission occasions. The indication may exclude one or more invalid uplink transmission occasions based on a collision of one or more downlink messages or monitoring occasions with the one or more uplink shared channel messages. The UE may transmit one or more acknowledgment (ACK) or negative acknowledgment (NACK) messages in accordance with an identifier that excludes the invalid uplink transmission occasion(s).

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a sub-band full duplex (SBFD) configuration that configures one or more SBFD symbols. The UE may receive a configured grant (CG) configuration that configures multiple CG uplink transmission occasions in a CG period. The UE may transmit uplink control information (UCI) indicating whether one or more CG uplink transmission occasions, of the multiple CG uplink transmission occasions, are unused by the UE in accordance with a CG uplink transmission occasion, of the one or more CG uplink transmission occasions, being valid based at least in part on the CG uplink transmission occasion being in an SBFD symbol of the one or more SBFD symbols. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a control message from a network entity that indicates one or more aggregation factor values. The control message may indicate one or more identifiers associated with the one or more aggregation factor values. The UE may receive information from the network entity that is indicative of a parameter associated with a directional communication between the UE and the network entity. The parameter may correspond to an aggregation factor value or to an identifier associated with the aggregation factor value. The UE may communicate with the network entity in accordance with the aggregation factor value based receiving the information indicative of the parameter.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a message indicating a frequency hopping configuration for repetitions of an uplink message that are to be transmitted via a set of resources, including one or more resources that support full-duplex communications. The UE may determine that some resources of the set of resources are available for transmitting the repetitions in a time domain. The UE may use a frequency hopping pattern to transmit the uplink message and the repetitions of the uplink message, where the frequency hopping pattern may include two or more frequency hops and based on the available resources and the frequency hopping configuration. In some cases, the UE may determine that some resources of the set of resources are unavailable in a frequency domain, and as such, the UE may drop respective transmissions of the uplink messages on the unavailable resources.