Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) may receive a first indication to perform a first positioning measurement having a first measurement method type and targeting a first positioning frequency layer (PFL). The UE may receive, prior to completion of measurements associated with the first positioning measurement, a second indication to perform a second positioning measurement having a second measurement method type and targeting a second PFL. The UE may determine an order in which to perform the measurements associated with the first indication and measurements associated with the second indication. The UE may perform the measurements associated with the first indication and the measurements associated with the second indication according to the order.

Abstract: Disclosed are techniques for communication. In an aspect, a network node transmits, to a network entity, a plurality of beam representations for a corresponding plurality of beams, wherein each beam representation of the plurality of beam representations comprises an antenna configuration associated with a beam of the plurality of beams or a mapping of beam angle and beam gain associated with the beam, the antenna configuration including at least a number of antenna elements and an antenna element spacing, and transmits, to the network entity, a first mapping of one or more positioning reference signal (PRS) resources or PRS resource sets to the plurality of beam representations, wherein each of the one or more PRS resources or PRS resource sets is associated with a single beam representation of the plurality of beam representations.

Abstract: In an aspect, a radar controller determines transmission configuration(s) for target radar signals from a first wireless communications device to a second wireless communications device, the target radar signals for sensing of at least one target, the at least one transmission configuration configuring a first time-domain section associated with a first time-domain target radar signal density, and a second time-domain section associated with a second time-domain target radar signal density that is different than the first time-domain target radar signal density. The radar controller transmits the transmission configuration(s) to the first and second wireless communications devices. The first wireless communications device transmits the target radar signals to the second wireless communications device in accordance with the transmission configuration(s).

Abstract: Disclosed are techniques for wireless environment sensing. In an aspect, a network node transmits, to a network entity, a capability message including one or more capability parameters indicating one or more capabilities of the network node to participate in bistatic or multistatic multiple-input multiple-output (MIMO) radar sensing operations, receives, from the network entity, a configuration message including one or more configuration parameters configuring the network node to participate in a bistatic or multistatic MIMO radar sensing operation, and performs the bistatic or multistatic MIMO radar sensing operation based on the one or more configuration parameters.

Abstract: Aspects presented herein may enable an RF sensing node to transmit RF sensing signals based on OFDM symbols that may be flexibly configured, such that OFDM symbols used for RF sensing may be different from OFDM symbols used for communications. In one aspect, an RF sensing node transmits an RF sensing signal in a first time duration of a symbol in an RF sensing session. The RF sensing node monitors for a reflected RS sensing signal in a second time duration of the symbol that does not overlap with the first time duration, the symbol including a CP that does not overlap with the first time duration and the second time duration.

Abstract: Sounding reference signals (SRS) transmitted by a UE, e.g., for positioning or channel estimation, may be configured for one or both of frequency tone level cyclic shift and symbol level code, which, for example, enables multiplexing a greater number of UEs. The frequency tone level cyclic shift is produced by jointly processing a number of symbols with an extended cyclic shift structure. The SRS may be configured using a symbol group level that indicates the number of symbols associated with a cyclic shift structure, and an outer code that indicates a multiplier applied to the SRS at the symbol level, which increases the multiplexing opportunities. The symbol level code may further indicate an extended cyclic shift indicating a linear increase in phase rotation across tones in symbols associated with the symbol group level.

Abstract: Disclosed are techniques for reducing the overhead of low layer positioning reports. In an aspect, a user equipment (UE) performs at least one positioning measurement of at least one downlink positioning reference signal (DL-PRS) received from at least one transmission-reception point (TRP) during a positioning session, and reports, to a positioning entity via low layer signaling, a relative value of the at least one positioning measurement relative to an expected value of the at least one positioning measurement, wherein the relative value of the at least one positioning measurement is a difference between the expected value of the at least one positioning measurement and a measured value of the at least one positioning measurement.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a network entity determines a location of a target base station and a location of at least one reference device, determines an angle-of-arrival (AoA) measurement of one or more reference signals received by at least one antenna array of the target base station from the at least one reference device, determines an expected AoA between the at least one antenna array and the at least one reference device based on the location of the target base station and the location of the at least one reference device, and determines an orientation offset of the at least one antenna array based on a difference between the expected AoA and the AoA measurement.

Abstract: Aspects presented herein may enhance the efficiency and performance of RF sensing schemes/mechanisms based at least in part on time and frequency domain muting. In one aspect, a base station transmits, to a plurality of TRPs, a TRP configuration to configure the plurality of TRPs to transmit one or more RRSs over multiple transmission occasions based on a frequency band. The base station transmits, to the plurality of TRPs, an indication to mute at least one of a first sub-band or a second sub-band of the frequency band for transmitting the one or more RRSs in each of the multiple transmission occasions.

Abstract: Methods and apparatus for resource allocation for radio frequency (RF) sensing signals in data communications systems are provided. In some embodiments, a transmitter may determine one or more capabilities associated with a multiple input, multiple output (MIMO) antenna of the transmitter, send information relating to the capabilities to a network entity (e.g., server) of the network, obtain configuration data relating to an allocation of frequency resources for a RF sensing signal (e.g., radar reference signal) interleaved with respect to a plurality of antenna ports associated with the MIMO antenna, and transmit the RF sensing signal in accordance with the configuration data. The obtained data may be configured based on the capabilities. The frequency resources may be orthogonal frequency-division multiplexing (OFDM) resources. According to different embodiments, allocation of OFDM resources may be equidistant, non-equidistant, or on demand (e.g., as requested by the server or confirmed by the server).

Abstract: Disclosed are systems and techniques for wireless communications. For example, a network device can transmit a sensing signal for sensing one or more targets. The transmitted sensing signal and at least one sensing signal transmitted by at least one other network device of the plurality of network devices includes one or more phase codes and a same frequency modulated carrier wave (FMCW). Each phase code of each sensing signal corresponds to one or more Doppler spectrum patterns. The network device can receive at least one echo signal from the one or more targets. The network device can mitigate Doppler ambiguity in a Doppler spectrum from the at least one echo signal based on the one or more Doppler spectrum patterns.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a network node may determine an estimated location of a user equipment (UE) that is served by a serving base station (BS). The network node may determine a dilution of precision (DOP) requirement with respect to the UE. The network node may determine at least one reconfigurable intelligent surface (RIS) that satisfies the DOP requirement with respect to the UE. The network node may send at least one configuration message to configure the at least one RIS to reflect positioning reference signals to or from the UE. In another aspect, a UE may determine a DOP requirement with respect to the UE. The UE may send at least one configuration message to select at least one RIS that satisfies the DOP requirement with respect to the UE to reflect positioning reference signals to or from the UE.

Abstract: In an aspect, a radar controller determines a first transmission configuration for a reference radar signal on a first link from a first base station to a second base station, and a second transmission configuration for at least one target radar signal on at least one second link from the first base station to the second base station, the at least one target radar signal for sensing of at least one target, the first transmission configuration being different than the second transmission configuration. The radar controller transmits the first and second transmission configurations to the first and second base stations. The first base station transmits the reference radar signal and the at least one target radar signal in accordance with the respective transmission configurations.

Abstract: Apparatuses and methods for scrambling of FMCW for interference mitigation in JCS are described. An apparatus is configured to obtain a set of phase-coded FMCW signals that is phase-coded based on a scrambling ID for the first node and/or a second node. The apparatus is configured to descramble the set of phase-coded FMCW signals based on the scrambling ID. The set of phase-coded FMCW signals is descrambled to obtain a set of descrambled FMCW signals. The apparatus is configured to perform sensing, communication, and/or JCS functions based on the set of descrambled FMCW signals. Another apparatus is configured to configure a set of FMCW signals, and to scramble the set of FMCW signals based on a scrambling ID for the first node and/or a second node to obtain a set of phase-coded FMCW signals. The apparatus is configured to transmit, for the second node, the set of phase-coded FMCW signals.

Abstract: Disclosed are techniques for positioning. In an aspect, a positioning entity receives a report indicating an operation mode of a reconfigurable intelligent surface (RIS) associated with at least one base station, receives a transmission-to-reception (Tx-Rx) time difference measurement for a network node involved in a round-trip-time (RTT) positioning session with a user equipment (UE), determines a reception-to-transmission (Rx-Tx) time difference measurement for the UE, the Rx-Tx time difference measurement representing a difference between a reception time at the UE of a downlink positioning reference signal from the RIS and a transmission time from the UE of an uplink positioning reference signal towards the RIS, and calculates a distance between the UE and the RIS based, at least in part, on the Tx-Rx time difference measurement and the Rx-Tx time difference measurement.

Abstract: Techniques for channel state feedback using sensing reference signals are disclosed. The techniques can include identifying a channel state information (CSI) report configuration based on CSI reporting configuration information received from a radio access network (RAN) node of a RAN, based on the CSI report configuration, identifying a set of basis reference signals to be measured on a wireless channel of the RAN, wherein the set of basis reference signals includes one or more sensing reference signals, measuring the set of basis reference signals to obtain channel state measurements, determining channel state information based on the channel state measurements, and transmitting a CSI report including the channel state information to the RAN node.

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a reduced- capability user equipment (UE) receives, from each of one or more premium UEs, one or more parameters indicating a quality of a location estimate of the premium UE, selects at least one premium UE based on the quality of the location estimate of the at least one premium UE, and derives a location estimate of the reduced-capability UE based on the location estimate of the at least one premium UE. In another aspect, a reduced-capability UE transmits, to at least one premium UE, a request to perform one or more positioning measurements of one or more downlink reference signals, receives, from the at least one premium UE, a measurement report comprising the one or more positioning measurements, and determines a location estimate of the reduced-capability UE based on the one or more positioning measurements in the measurement report.

Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, a network device can receive one or more radio frequency (RF) sensing resources. The network device can determine RF sensing measurements based on the one or more RF sensing resources. For instance, the RF sensing measurements may be based on at least one use case for RF sensing. The network device can transmit, to a network entity, a measurement report comprising the RF sensing measurements for the at least one use case for the RF sensing.

Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, a network entity for wireless communications can transmit wide sensing signal beams in different directions to detect a target. The network entity can detect the target with one or more of the wide sensing signal beams. The network entity can transmit a narrow sensing signal beam in a direction towards the target to track the target, after the target has been detected. The network entity can further increase a power of the narrow sensing signal beam to provide energy to the target.

Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, a network entity for wireless communications can receive a sensing reference signal reflected from a target. The network entity can detect and measure remote interference (RI) based on the sensing reference signal.