Abstract: One general aspect includes a method of wireless communication performed by a user equipment (UE). The method of wireless communication also includes receiving a configuration defining uneven reference signals in a time domain, including defining the uneven reference signals to be received before a paging early indication (PEI) and between the PEI and a paging occasion (PO); exiting a sleeping mode to receive the uneven reference signals before the PEI and between the PEI and the PO, performing a tracking loop adjustment based on the uneven reference signals, decoding a paging message after the tracking loop adjustment, and returning to the sleeping mode. Other embodiments of this aspect include corresponding computer systems, apparatus, and computer programs recorded on one or more computer storage devices, each configured to perform the actions of the methods.

Abstract: An example method of radio frequency (RF) sensing performed by a User Equipment (UE) may comprise communicating video data at a video frame periodicity. The method may comprise obtaining a RF sensing signal configuration determined according to the video frame periodicity. The method may comprise performing RF sensing by communicating RF signals in accordance with the RF sensing signal configuration, wherein the RF signals are communicated during resources where the video data is not communicated.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive, from a network entity, a cross-link interference (CLI) sounding reference signal (SRS) measurement resource configuration that indicates an orthogonal time frequency space (OTFS) modulated SRS associated with a second UE. The first UE may receive, from the second UE, the OTFS modulated SRS based at least in part on the CLI SRS measurement resource configuration. The first UE may perform a CLI measurement over one or more symbols in which the OTFS modulated SRS is transmitted. The first CE may transmit, to the network entity, a measurement report that indicates the CLI measurement. Numerous other aspects are described.

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: 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: 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: An example method of radio frequency (RF) sensing performed by a User Equipment (UE) may comprise obtaining a first sensing configuration accommodating multiple different sensing tasks that may be performed by the UE, wherein according to the first sensing configuration, a first set of sensing signal occasions within a sensing signal period are budgeted for performing the RF sensing. The method may comprise determining a second sensing configuration for a certain sensing task, wherein according to the second sensing configuration, a sensing subset comprising a subset of the first set of sensing signal occasions is configured for performing the certain sensing task. The method may further comprise performing the certain sensing task in accordance with the second sensing configuration.

Abstract: Aspects presented may enable RF sensing to be adaptive to the environment to improve the sensing, performance, and/or the spectrum efficiency of cellular systems and the power efficiency of RF sensing nodes. In one aspect, an RF sensing node extracts one or more features for a set of objects of an area via at least one non-RF sensor. The RF sensing node transmits, to a network entity, the one or more features or at least one non-RF measurement derived from the one or more features. The RF sensing node receives, from the network entity, an RRS transmission configuration derived based on the one or more features or the at least one non-RF measurement transmitted to the network entity.

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) may send, to a first entity, first information indicating a maximum number of positioning signal transmissions or a maximum power for positioning signal transmissions that the UE can support. The UE may receive, from the first entity, configuration information for changing a positioning mode of the UE to a positioning mode selected from a first positioning mode and a second positioning mode. The UE may perform a positioning operation according to the selected positioning mode. In some aspects, the first positioning mode is a normal positioning mode in which the UE sends UL positioning reference signals to a plurality of TRPS, and the second positioning mode is a UL power-limited mode in which the UE sends UL positioning reference signals to only one or a small number of TRPs.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) may receive an announcement message from each sidelink anchor device of one or more sidelink anchor devices, wherein the announcement message includes a sidelink anchor device identifier and an indication that the sidelink anchor device is available for positioning services. The UE may measure the announcement message from each sidelink anchor device to determine a signal strength measurement associated with the sidelink anchor device. The UE may report, to a network node, one or more preferred sidelink anchor devices from the one or more sidelink anchor devices, wherein the one or more preferred sidelink anchor devices are determined based on the signal strength measurement respectively associated with each sidelink anchor device of the one or more sidelink anchor devices.

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: In an aspect, a sidelink device may reserve a first sidelink resource for transmission of a first positioning reference signal (PRS) by the sidelink device. The sidelink device may reserve at least one further sidelink resource for transmission of at least one further PRS by at least one further sidelink device, wherein the at least one further sidelink resource occurs within a first time threshold of the first sidelink resource.

Abstract: A mono-static radio frequency sensing coordination method includes: determining, by a network entity for a first apparatus that is a first radio frequency sensing apparatus, a first configuration of a first cellular network signal for mono-static radio frequency sensing such that the first cellular network signal has expected interference of less than a threshold interference due to transmission of a second cellular network signal from a second apparatus that is separate from the first apparatus; and transmitting, from the network entity to the first apparatus, a first configuration message indicating for the first apparatus to use the first configuration of the first cellular network signal for monostatic radio frequency sensing.

Abstract: A reference signal receiving method includes: obtaining, at a user equipment, a sidelink resource pool configuration including configuration parameters of one or more SL OFDM resources (sidelink orthogonal frequency division multiplexing resources) including one or more SL OFDM RS resources (SL OFDM reference signal resources) each dedicated to carrying one or more sidelink reference signals; receiving, at the user equipment, reference signal control information indicating a first resource location of at least one of the one or more SL OFDM RS resources; decoding, at the user equipment, the reference signal control information; and using, at the user equipment, the at least one of the one or more SL OFDM RS resources to receive a first reference signal.

Abstract: Aspects of the disclosure involve multiplexing the transmission of communications signals and sensing signals at the resource element level. A frequency modulated continuous wave (FMCW) signal and plurality of orthogonal frequency-division multiplexing (OFDM) signals may be transmitted within an air interface frame structure having a plurality of resource elements, each resource element defined over a symbol duration in a time domain and a subcarrier in a frequency domain. The FMCW signal occupies a first plurality of resource elements and comprises a FMCW waveform repeated in the time domain and transmitted during a first symbol, over a first plurality of subcarriers of the air interface frame structure. The plurality of OFDM signals occupy a second plurality of resource elements in the air interface frame structure and are transmitted during the first symbol, over a second plurality of subcarriers of the air interface frame structure.

Abstract: Techniques are provided for aligning radio frequency (RF) sensing operations with base station discontinuous reception (DRX) and discontinuous transmission (DTX) cycles. An example method for performing RF sensing operations with a wireless node according to the disclosure includes receiving discontinuous reception or discontinuous transmission information for the wireless node, determining one or more on periods and one or more off periods based on the discontinuous reception or the discontinuous transmission information, performing radio frequency sensing operations with the wireless node during the one or more on periods, and ceasing radio frequency sensing operations with the wireless node during the one or more off periods.

Abstract: A technique is performed at a user equipment (UE) for supporting one or more radio frequency (RF) sensing measurements. A reflected downlink signal is received, wherein the reflected downlink signal is transmitted as a downlink signal from a base station and reflected off of a target. An uplink signal is transmitted to be reflected off of the target and received by the base station as a reflected uplink signal. A UE receive-transmit (RX-TX) time difference is determined, representing a difference between a time at which the reflected downlink signal is received by the UE and a time at which the uplink signal is transmitted by the UE. A UE measured frequency offset is determined based on reception of the reflected downlink signal, the UE measured frequency offset comprising a Doppler shift component corresponding to a velocity of the target.

Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, an example of a process may include receiving, at a network device (e.g., a user equipment (UE)) from a network entity via a number of sensing streams based on a maximum of Nt?J sensing streams, a waveform including communications resources and sensing resources. The waveform has a rank Nt and J is a number of layers scheduled for multiple-input multiple-output (MIMO) communications that is less than Nt. The process may further include processing at least the communications resources of the waveform.

Abstract: A positioning reference signal measurement method includes: receiving, at a user equipment from a network entity, an OFDM PRS (orthogonal frequency division multiplexing positioning reference signal) comprising a first set of first OFDM symbols that are consecutive and include a first center symbol and at least one pair of first side symbols disposed symmetrically about the first center symbol and having identical resource element sounding patterns; combining the first side symbols in each of the at least one pair of first side symbols to produce at least one first combined symbol; and determining a measurement of the OFDM PRS based on the at least one first combined symbol and the first center symbol.

Abstract: In an aspect, a network device may transmit one or more first sets of first chirp signals in a first bandwidth of an allocated frequency range assigned to the network device for data communications and sensing signals. The network device may transmit one or more second sets of second chirp signals in a second bandwidth of the allocated frequency range, wherein the second bandwidth is larger than the first bandwidth.