Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, via a first serving cell, a radio resource control (RRC) message including an indication to activate a second serving cell. The UE may transmit, via the first serving cell in response to the RRC message, an RRC response message acknowledging the RRC message. The UE may identify, within an activation time interval following transmission of the RRC response message and based on the RRC message, a resource for a reference signal associated with time and frequency tracking for the second serving cell. The UE may then monitor the resource for the reference signal.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a UE capability information request message. The UE may transmit, to the network entity in response to the UE capability information request message, a UE capability information message indicating one or more antenna capabilities of the UE. Numerous other aspects are described.

Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication. In one aspect, a method is provided which may be performed by a wireless device such as a user equipment (UE) in a network supporting co-existence of a first type of random access and a second type of random access, which may be associated with different latency, overhead, quality of service (QoS), energy efficiency, and/or spectral efficiency.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, a synchronization signal block (SSB) associated with an SSB configuration for an operating band having a transmission bandwidth that is narrower than a channel bandwidth. The UE may decode the SSB based at least in part on the SSB configuration. Numerous other aspects are described.

Abstract: Techniques described provide dependent procedure operation configured for avoiding or mitigating one or more aspect of the impact on the dependent procedure of cancelling an uplink transmission. One or more attributes (e.g., a transmission indication attribute) associated with a cancelled uplink transmission may be designated for dependent procedure operation, such as for indicating whether the cancelled uplink transmission is considered either as having been transmitted or not having been transmitted. The one or more attributes associated with a cancelled uplink transmission designated for dependent procedure operation may be based upon whether the cancelling the first uplink transmission is a fast cancellation or is a slow cancellation. The designation of a transmission indication attribute for dependent procedure operation may correspond to the dependent procedure and/or its operation. Other aspects and features are also claimed and described.

Abstract: A method for providing positioning signals with a re-configurable intelligent surface (RIS) includes selecting a movable assistant transceiver; receiving, at the RIS, a plurality of sequential positioning assistance signals (PASs) from the movable assistant transceiver; and directing the plurality of sequential PASs, via the RIS, at a plurality of direction angles, each corresponding to a respective one of the sequential PASs. Viewed from an alternative perspective, the method may include receiving, at a movable assistant transceiver, a request for assistance; and responsive to the request, transmitting, from the movable assistant transceiver to the RIS, a plurality of PASs for direction by the RIS. RIS-assisted positioning of a UE may be provided even in the absence of PRS signals from a gNB or other TRP that is separate from the RIS.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a UE capability indication associated with multiplexing. The UE may receive an orthogonal cover code (OCC) configuration that indicates an OCC-multiplexing factor. The UE may transmit or refrain from transmitting a phase tracking reference signal (PTRS) in accordance with a PTRS rule associated with the OCC configuration. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a UE capability message, the UE capability message indicating a supported transmit antenna switching (TxAS) capability for each port of the UE. The UE may receive a configuration message indicating an uplink multiple-input/multiple-output (UL MIMO) configuration for the UE, the UL MIMO configuration being based at least in part on the UE capability message. The UE may identify, based at least in part on the configuration message, a sounding reference signal (SRS) configuration to use for transmitting SRSs in conjunction with the UL MIMO communications, the SRS configuration comprising a configuration for transmission by the UE of SRSs using at least one of the two or more ports of the UE, the SRSs transmitted on one or more antennas of the UE selected according to a TxAS configuration for the respective port.

Abstract: Aspects described herein relate to transmitting, to a network node, user equipment (UE) capability information including one or more values that independently indicate, for a first reference signal (RS) type, a first codebook supporting a first level of coherency among multiple antennas, and, for a second RS type, a second codebook supporting a second level of coherency among the multiple antennas, and receiving, from the network node, an indication of which of the first codebook or the second codebook, or which of the first RS type or the second RS type, to use in transmitting RS to the network node. Other aspects relate to receiving the UE capability information, and transmitting the indication of which codebook to use.

Abstract: Methods, systems, and devices for wireless communication are described. The method may include an energy harvesting (EH) device receiving a first control signal that includes scheduling information for the EH device. The scheduling information may indicate a first set of resources for communicating a first signal and a first offset between receiving the first control signal and communicating the first signal. Further, the method may include transmitting, via a second set of resources, a second signal indicating a second offset between receiving the first control signal and communicating the first signal and communicating the first signal via the first set of resources based on the second offset.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates priorities for multiple bands, including a highest priority band. The UE may switch, as part of a band switch, from a first band to a second band before or after transmission on the highest priority band, if the highest priority band is participating in the band switch. The UE may alternatively switch, as part of the band switch, from the first band to the second band independent of when transmission occurs in the highest priority band, if the highest priority band is not participating in or is not having transmission interrupted by the band switch. The UE may alternatively drop a lower priority band if the switching gap is not sufficient for the band switch. Numerous other aspects are described.

Abstract: A method for wireless communication at a user equipment (UE) and related apparatus are provided. The apparatus is configured to receive a configuration for a wake-up signal associated with a second radio having a lower power consumption than a first radio at the UE. The configuration includes a starting time for an operation of the first radio based on a reception of the wake-up signal. The apparatus is further configured to receive the wake-up signal via the second radio, and start the operation of the first radio at the starting time following the reception of the wake-up signal via the second radio.

Abstract: Certain aspects of the present disclosure provide techniques for subchannel-based listen before talk (LBT). An example method that may be performed by a user equipment (UE) includes receiving one or more transmissions indicating one or more allocated subchannels of a frequency band that are allocated during a first time period, the frequency band comprising the one or more allocated subchannels and one or more unallocated subchannels during the first time period; sensing the one or more unallocated subchannels for at least a portion of the first time period prior to a second time period; and transmitting a signal within the frequency band during the second time period based on energy sensed for the one or more unallocated subchannels being less than a threshold.

Abstract: Aspects of the disclosure are directed to quantized orthogonal modulation for non-coherent over-the-air (OTA) federated learning (FL). In some examples, a wireless device may compare a gradient to a threshold value to determine whether the gradient satisfies a threshold condition. The wireless device may also output, for transmission to a network node, signaling via one of a first resource or a second resource, wherein the signaling is outputted via the first resource if the gradient satisfies the threshold condition, and wherein the signaling is outputted via the second resource if the gradient does not satisfy the threshold condition.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, to a group of user equipment (UEs), a multi-user packet including a plurality of transport blocks combined into a combined transport block, wherein each transport block, of the plurality of transport blocks, is separately encoded using a particular encoding procedure and aggregated into the combined transport block; receive, from one or more UEs of the group of UEs, hybrid automatic repeat request feedback indicating a decoding failure of one or more transport blocks of the multi-user packet; and retransmit one or more packets to convey the one or more transport blocks subject to the decoding failure. Numerous other aspects are provided.

Abstract: Certain aspects of the present disclosure provide techniques for wireless communications at a network entity. The network entity is configured to transmit a legacy paging message to a user equipment via a first set of resources, and a pre-paging message to a user equipment via a second set of resources. The second set of resources is used if one or more conditions are met. The network entity can also perform one or more actions after transmitting the pre-paging message.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, an uplink grant for a physical uplink shared channel (PUSCH) that is to overlap in time with a physical uplink control channel (PUCCH) used for hybrid automatic repeat request (HARQ) feedback for at least multicast, the uplink grant including a downlink assignment index (UL-DAI) indication that indicates at least one of: whether the HARQ feedback of the PUCCH is to be multiplexed on the PUSCH, or a size for the HARQ feedback. The apparatus may communicate, with the network entity, in accordance with the UL-DAI indication. 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 configuration information associated with a band prioritization scheme for identifying at least one dropping band, of a plurality of uplink frequency bands, to be used for a switching period associated with a switch from a first uplink frequency band to a second uplink frequency band, the plurality of uplink frequency bands comprising the first uplink frequency band and the second uplink frequency band. The UE may transmit, based on the configuration information, an uplink communication via the second uplink frequency band, and refrain from transmitting a dropped communication associated with the at least one dropping band. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may transmit, to a second wireless communication device, information indicating at least one of: data for a third wireless communication device, or one or more transmission parameters of the data for the third wireless communication device. The first wireless communication device may transmit, to the second wireless communication device, a payload that is modulated with the data for the third wireless communication device. 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, from a network node, information configuring a hopping pattern for monitoring a low-power wakeup signal (LP-WUS) based at least in part on one or more characteristics associated with the UE. The UE may monitor, using a low-power wakeup receiver (LP-WUR), a wakeup signal (WUS) resource for the LP-WUS based at least in part on the hopping pattern. The UE may wake a main radio from a deep sleep state based at least in part on the LP-WUR detecting the LP-WUS. Numerous other aspects are described.