Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration of cell discontinuous transmission (DTX) and cell discontinuous reception (DRX). The UE may receive a dynamic indication to skip reception or transmission of one or more channels during a time interval. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. Techniques described herein support transmission of a transport block over multiple slots (TBoMS) with subband full duplex (SBFD) operation. For example, if a time domain resource allocation for a TBoMS includes both uplink slots and downlink slots configured with an uplink subband, a user equipment (UE) may determine which slots to use in accordance with a scheme for selecting available slots for the TBoMS from indicated candidate slots, and the UE may determine the transport block size based on the selected slots. In some examples, the UE may first determine the quantity of resource elements available in each of the different slot types, and then may determine the transport block size based on the quantity of resource elements available in each of the different slot types and the quantity of each of the different slot types.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network entity may select a subset of channel state information reference signal (CSI-RS) ports from a CSI-RS resource associated with a two-dimensional antenna array. The subset of CSI-RS ports may be associated with an antenna subarray having a reduced size. The network entity may transmit an indication of a starting port of the subset of CSI-RS ports in supplemental configuration information. Numerous other aspects are described.

Abstract: A user equipment (UE) may be configured for transmission of reference signals in association with cell discontinuous transmission (DTX) and/or discontinuous reception (DRX) (DTX/DRX) configurations. In some aspects, the UE may be configured for transmitting or receiving reference signals or dropping communications during a non-active time of a C-DTX/DRX cycle. In some aspects, a UE may transmit or receive reference signals during a non-active time of a C-DTX/DRX cycle in association with a configured use of the reference signals or a connectivity state of the UE.

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive, from a second wireless device, an indication of one or more parameters associated with a reference signal that is to be transmitted by the first wireless device. The one or more parameters may be encoded separately from the remainder of the control message using a secret key that is known to both the second wireless device and the first wireless device. The first wireless device may then decode the one or more parameters using the secret key, and may transmit the associated reference signal to the second wireless device based on decoding the parameters using the secret key.

Abstract: Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally, or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may receive reference signals from another wireless device over a channel between the devices. The wireless device may perform channel estimation based on the reference signals to determine multiple taps. The wireless device may receive a message from the other wireless device indicating one or more taps to be selected to obtain a secret key for encrypting a message. The wireless device may select the taps based on the indication and communicate one or more encrypted messages with the other wireless device. For example, the wireless device may receive encrypted messages, transmit encrypted messages, or both.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information that indicates a non-active time for cell discontinuous reception and that indicates a quantity of repetitions for one of a physical uplink channel or signal. The UE may transmit one or more repetitions of the one of the physical uplink channel or signal in one or more transmission occasions outside of the non-active time. The UE may drop transmission of one or more repetitions of the one of the physical uplink channel or signal in one or more transmission occasions in the non-active time. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide techniques for securing physical (PHY) layers in wireless communication. Certain aspects are directed to a method for wireless communication by a base station (BS). In some examples, includes, by, a secured first index based at least in part on a first index and a first secret key, the first index corresponding to a first orthogonal cover code (OCC) for communication over at least a first channel between the BS and a user equipment (UE). In some examples, the method also includes transmitting, to the UE, the secured first index and the first secret key.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a reference signal or channel conveying a paging indicator. The UE may determine, based on the paging indicator, whether to monitor a paging control channel including a scheduling grant for a paging shared channel communication. The UE may estimate time or frequency information for receiving the paging control channel based at least in part on a result of the determining, and receiving the paging control channel containing based at least in part on the result of the determining and the estimated time or frequency information, or skipping monitoring the paging control channel based at least in part on the result of the determining. 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 receive a configuration that indicates to the UE to apply demodulation reference signal (DMRS) bundling to physical uplink shared channel (PUSCH) transmissions. The UE may maintain phase coherence across multiple PUSCH transmissions, to which the DMRS bundling is applied, to enable joint channel estimation across the multiple PUSCH transmissions. The UE may transmit, based at least in part on the configuration, uplink control information (UCI) that includes a coherence indication. The UE may multiplex the UCI with a PUSCH transmission of the multiple PUSCH transmissions to which the DMRS bundling is applied. The coherence indication may indicate whether the PUSCH transmission is coherent with one or more other PUSCH transmissions, of the multiple PUSCH transmissions, transmitted by the UE. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and network entity may perform physical uplink control channel (PUCCH) resource adaptation in order for the network entity to reduce power consumption. For example, the UE may receive first control signaling indicating a first set of PUCCH resource occasions and a second set of PUCCH resource occasions, and transmit one or more uplink messages via the first set of PUCCH resource occasions. In some examples, the UE and the network entity may switch between operating using the first set of PUCCH resource occasions to operating using the second set of PUCCH resource occasions based on second control signaling indicating for the UE to switch between sets of PUCCH resource occasions. In some examples, the second control signaling may indicate for the UE to skip one or more uplink messages or PUCCH resource occasions.

Abstract: Aspects are provided which allow a base station to provide RACH configuration(s) indicating RACH occasions which correspond to wake up occasions of a base station according to a power savings mode of the base station. The base station sends one or more RACH configurations indicating ROs to a UE, and then monitors the ROs associated with the power savings mode. The UE determines the ROs associated with the power savings mode, and sends a wake up signal to the base station in at least one of the determined ROs. The base station obtains the wake up signal from the UE in at least one of the monitored ROs. Here, the wake up signal comprises a RACH message. As a result, network power consumption may be optimized through designed configurations which allow a UE to wake up a sleeping base station via a RACH message.

Abstract: Methods, systems, and devices for wireless communications are described. A network entity may output a channel state information (CSI) report message that indicates multiple codebook configurations. A UE may receive the CSI report message indicating a set of codebook configurations associated with a set of antenna port configurations. The UE may transmit a CSI report indicating one or more codebook configurations of the set of codebook configurations, where CSI included in the CSI report is based on the one or more codebook configurations. The UE may then communicate with a network entity based on the channel state information report indicating the one or more codebook configurations.

Abstract: A method for wireless communication by a user equipment (UE) includes transmitting, to a base station, a random access preamble to initiate a random access procedure. The method also includes receiving, from the base station based on transmitting the random access preamble, a downlink message comprising a repetition number indicator. The method further includes transmitting a number of repetitions of a physical uplink channel based on the repetition number indicator.

Abstract: A method comprises receiving a request to log at least one operation of a plurality operations, wherein the request includes one or more features of the at least one operation. The one or more features are analyzed using one or more machine learning algorithms. The method further comprises selecting, based at least in part on the analyzing, a log provider of a plurality of log providers to log the at least one operation, and interfacing with the log provider to enable logging of the at least one operation.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a control message indicating a joint transmission configuration (e.g., fully coherent, partially coherent, or non-coherent) for a distributed system associated with a base station. The UE may receive reference signals from respective antenna panels of groups of distributed antenna panels. The UE may generate a channel state information (CSI) report based on the joint transmission configuration and the reference signals. In some examples, the UE may receive an indication of a reporting order for parameters in the CSI report, may separately or jointly encode channel state information reference signal resource indicators (CRIs) for the report, may modify a code-book (e.g., a precoder matrix) or cross-group co-phasing coefficients in the CSI report, or any combination thereof. The UE may transmit the CSI report to the base station.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an offset for a discontinuous reception (DRX) or discontinuous transmission (DTX) cycle of a network node, the offset being based at least in part on a connected mode DRX or DTX cycle of the UE. The UE may communicate with the network node in accordance with the DRX or DTX cycle of the network node and the offset for the DRX or DTX cycle of the network node. Numerous other aspects are described.

Abstract: Methods, systems, and devices for wireless communications are described. A device may receive signaling including a channel state information (CSI) reporting configuration. The device may determine one or more resources of a physical uplink channel for aperiodic CSI reporting based on the CSI reporting configuration and transmit an aperiodic CSI report over the physical uplink channel based on the on the one or more resources. In some examples, the device may also determine a set of demodulation reference signal (DMRS) symbols associated with a hop of a set of hops in a time domain or a frequency domain, and coherently transmit, based on the determining, the set of DMRS symbols associated with the hop of the set of hops.

Abstract: A first user equipment (UE) for wireless communication may be configured to send, to a second UE, a plurality of sidelink reference signals (SL-RSs), wherein the first UE and the second UE are configurable to communicate with a network entity, and wherein the plurality of SL-RSs includes a first SL-RS corresponding to a first operational state of the network entity. The first UE may receive, from the second UE, one or more channel state information (CSI) reports, wherein each CSI report of the one or more CSI reports corresponds to a respective SL-RS of the plurality of SL-RSs.