Abstract: A communication device includes a processor configured to: transfer, via a transceiver, a wireless data signal within a communication frequency range; determine a capability of the communication device to measure a wireless radar signal received via the transceiver, the wireless radar signal having a frequency within the communication frequency range; transmit, via the transceiver to a network entity, a first indication of the capability of the communication device to measure the wireless radar signal, the first indication being indicative of a transmit power level of the wireless radar signal from a source of the wireless radar signal or a received power level of the wireless radar signal at the communication device; receive, via the transceiver, the wireless radar signal; determine a positioning measurement of the wireless radar signal; and transmit a second indication of the positioning measurement via the transceiver to the network entity.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives assistance data for enabling the UE to estimate a location of the UE, the assistance data including a relative location of each of a plurality of transmission points, wherein the relative location is represented as a hierarchy of two or more levels of description, wherein a highest level of description is relative to a fixed reference point, receives, from each of at least a subset of the plurality of transmission points, at least one positioning reference signal, and estimates the location of the UE based on characteristics of reception of the at least one positioning reference signal from each of the subset of the plurality of transmission points and the two or more levels of description and the fixed reference point for each of the subset of the plurality of transmission points.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a first physical downlink shared channel (PDSCH) transmission transmitted using a first modulation and coding scheme (MCS). The UE may transmit, to the base station, feedback based at least in part on decoding the first PDSCH transmission, wherein the feedback includes an acknowledgement (ACK) or negative acknowledgement (NACK) and a channel state information (CSI) report that includes at least an indication of a second MCS based at least in part on a target block error rate (BLER) and a target charging rate for energy harvesting. Numerous other aspects are described.

Abstract: A method of wireless communication performed by a user equipment (UE) is disclosed and includes determining a position of the UE based on a first positioning synchronization source; pre-configuring a first sidelink coordination group for use by the UE prior to an occurrence of one or more first triggering events, wherein the first sidelink coordination group uses a second positioning synchronization source that is different than the first positioning synchronization source; and in response to a determination that the one or more first triggering events has occurred, transitioning to use of the first sidelink coordination group for determining the position of the UE.

Abstract: Disclosed are techniques for wireless communication and positioning. In an aspect, a base station (BS) may determine a slot configuration that defines at least a portion of one or more slots configured for RF sensing. The BS may send the slot configuration to at least one other telecommunications device, e.g., to another BS if the RF sensing is bistatic radar. The BS may then perform RF sensing according to the slot configuration. In another aspect, a user equipment (UE) may receive a slot configuration that defines at least a portion of one or more slots configured for RF sensing. The UE may operate according to the slot configuration, e.g., the UE may go to low power or sleep mode while the base station is performing RF sensing, and may optionally wake up to receive downlink signals or to transmit uplink signals.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a user equipment (UE) to identify a first set of scheduled transmissions to be received using a first set of time-frequency resources, where reference signals of the first set of transmissions may be bundled according to a first reference signal bundling pattern. The UE may identify a second scheduled transmission to be received using a second set of time-frequency resources that overlaps with the first set of resources. The UE may determine a second reference signal bundling pattern for bundling the reference signals received in the first set of transmissions. For example, the UE may modify the first reference signal bundling pattern to determine the second reference signal bundling pattern. The UE may receive the second scheduled transmission and the first set of scheduled transmissions according to the second reference signal bundling pattern.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a base station performs one or more angle-based measurements in a first coordinate system, determines whether to report, to a positioning entity, the one or more angle-based measurements in a local coordinate system (LCS) or a global coordinate system (GCS), and reports the one or more angle-based measurements to the positioning entity in the LCS or the GCS based on the determination. In an aspect, a positioning entity receives, from a base station, one or more angle-based measurements in an LCS of the base station or a GCS, determines whether the one or more angle-based measurements are in the LCS or the GCS, and processes the one or more angle-based measurements based on the determination.

Abstract: Method and apparatus for downlink scheduling for increased orthogonal DMRS ports and PRB bundling size. The apparatus transmits DCI comprising an antenna value associated with a DMRS port mapping configuration. The DMRS port mapping configuration comprising orthogonal codes over a frequency domain and an orthogonal code sequence having a length (N) of orthogonal codes applied in the frequency domain. The orthogonal code sequence having a value of N>2. The apparatus transmits an indication comprising a DMRS port ID field associated with the DMRS port mapping configuration. At least one of the DMRS port ID field, the orthogonal code sequence, or the antenna value configured to identify a DMRS port.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) transmits, to a location server, a first set of parameters indicating capabilities of the UE to support positioning operations across a plurality of public land mobile networks (PLMNs), receives assistance data from the location server, the assistance data including a second set of parameters configuring the UE to measure a set of positioning resources across one or more PLMNs of the plurality of PLMNs, and obtains positioning measurements of the set of positioning resources to enable a determination of a location of the UE.

Abstract: Different antenna components of a device cause different biases in calculating a location of a user equipment (UE) based on reference signals from another device (which may be sounding reference signals from the UE or positioning reference signals from a base station). A device is configured to use different subsets of antenna components to calculate a positioning measurement. With each of the antenna components associated with a bias in calculating the positioning measurement, each subset of antenna components is associated with a bias in calculating the positioning measurement. The device is configured to generate and report an angle error group (AEG) report that is associated with the positioning measurements calculated (such as an AEG report including positioning measurements and identifiers indicating the antenna components used). The AEG report is used by a location server to identify the antenna components to be used for UE positioning operations.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, the method may include a user equipment (UE) transmitting, to a base station, first reference signals. The base station may perform channel estimation using the first reference signals and estimate a value for an uplink channel based on the channel estimation. The base station may generate second reference signals such that a characteristic of a downlink channel seen by the UE is within a target value and transmit the second reference signals to the UE. The UE may estimate a value for the characteristic of the downlink channel and obtain the target value from the estimated value. Both the UE and the base station may generate a secret using the target value and utilize the secret key for physical layer protection.

Abstract: A reference signal transmission method includes: determining, at a network entity, a signal configuration of a transmission signal that comprises at least one decoding portion and at least one reference signal portion, where the signal configuration comprises a transmission schedule of the at least one decoding portion and the at least one reference signal portion, where each of the at least one decoding portion comprises decoding information to decode a corresponding one of the at least one reference signal portion, where each of the at least one decoding portion is scheduled in one or more first symbols and the corresponding one of the at least one reference signal portion is scheduled in one or more second symbols, and where none of the one or more first symbols is before any of the one or more second symbols; and transmitting, from the network entity, the transmission signal.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first device may generate a request for energy from a second device that is capable of charging the first device in association with energy harvesting. The first device may generate an indication that indicates a maximum duration for which the request applies. The first device may transmit the request and the indication to the second device. Numerous other aspects are described.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) initiates a positioning procedure in a first type of UE positioning mode, switches, during the positioning procedure, from the first type of UE positioning mode to a second type of UE positioning mode based on one or more criteria associated with a quality of a position estimate provided by the first type of UE positioning mode being satisfied, and continues the positioning procedure in the second type of UE positioning mode.

Abstract: Various methods and apparatus for supporting positioning of a user equipment (UE) in a wireless network are disclosed. In some embodiments, a wireless network node may be configured to define one or more groups of antennas associated with a wireless network node, each of the one or more groups of antennas grouped according to at least a phase-based parameter correlated with an electromagnetic characteristic of a plurality of antennas; send, to a network entity, data identifying the defined one or more groups of antennas; receive configuration data from the network entity, the configuration data identifying at least one of the one or more groups of antennas; and based on the configuration data, send or receive reference signals with the wireless network node using the identified at least one of the one or more groups of antennas, the reference signals configured to be used in the positioning of the UE.

Abstract: A radio frequency sensing method includes: receiving, at a sensing apparatus from a network entity, a configuration message indicating a positioning reference signal configuration of a positioning reference signal; receiving, at the sensing apparatus from the network entity, a measurement indication indicating that the positioning reference signal is for radio frequency sensing; and measuring, at the sensing apparatus, the positioning reference signal to determine one or indicating a positioning reference signal more radio frequency sensing measurements based on the measurement indication indicating that the positioning reference signal is for radio frequency sensing.

Abstract: The techniques described herein provide procedures at user equipment (UEs) for performing channel state information (CSI) reporting and sounding reference signal (SRS) transmissions based on an ultra-reliable low latency communication (URLLC) block error rate (BLER) target and for reliably receiving PDCCH transmissions. For CSI reporting, a UE may be configured to generate a CSI report based on a BLER target and on received CSI reference signals (CSI-RSs), where the CSI-RSs may be transmitted on one or more groups of quasi co-located antenna ports. For SRS transmissions, a UE may be configured to transmit SRS based on an SRS configuration determined based on a BLER target. For receiving PDCCH transmissions, a UE may be configured to receive and combine DCI received from multiple base stations.

Abstract: Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) configured to operate in discontinuous reception (DRX) mode receives a configuration of a plurality of first positioning reference signal (PRS) resources, receives a configuration of a plurality of second PRS resources, selects one or more pairs of a first PRS resource of the plurality of first PRS resources and a second PRS resource of the plurality of second PRS resources, each pair of the one or more pairs satisfying one or more DRX pruning rules and one or more bundling conditions, and receives or transmitting the first PRS resource and transmitting or receiving the second PRS resource during one or more DRX cycles of the DRX mode.

Abstract: Techniques are provided for mitigating group delay errors across half duplex and full duplex operations. An example method of performing a round trip time message exchange includes performing the round trip time message exchange with a wireless node including receiving a downlink positioning reference signal and transmitting an uplink positioning reference signal, wherein the round trip time message exchange is associated with at least one duplex mode, and reporting a receive-transmit time difference measurement value based on the round trip time message exchange, wherein the reporting includes an indication of the at least one duplex mode.

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) may obtain a configuration that defines a first number of positioning measurement transmission beams, each positioning measurement transmission beam associated with a boresight transmission angle of the UE, and a second number of positioning discovery transmission beams, each positioning discovery transmission beam associated with a boresight transmission angle of the UE. The UE may transmit the positioning discovery transmission beams, then receive, from at least one other UE, feedback related to at least one of the positioning discovery transmission beams, and, based on that feedback, determine a subset of the positioning measurement transmission beams to be used for performing positioning measurements. The UE may perform the positioning measurements using the subset of the positioning measurement transmission beams.