Methods and devices for switching from OFDM to FMCW waveforms in wireless communications

Abstract

A frequency modulated continuous wave, FMCW, signal has a frequency that increases or decreases approximately linearly with time. A first device for wireless communications (115-a) communicates configuration information (610) with a second device for wireless communications (105-a), receives indication to switch from OFDM to FMCW (615), and transmits an FMCW signal to the second device (620). The second wireless device receives and processes the FMCW to perform one or more procedures. The received FMCW signal is mixed to generate a beat signal, such as a narrowband beat signal. The beat signal is provided to an analog-to-digital converter, ADC. The beat frequency may be utilized for channel quality estimation, beam management, sensing, or positioning procedures. For instance, each beat signal frequency may map to a specific target reflection for a sensing procedure.

Description

Qualcomm Ref. No. 2407012WO1COMMUNICATIONS FOR FREQUENCY MODULATED CONTINUOUS WAVE SIGNALSCROSS REFERENCE

[0001] The present Application for Patent claims priority to Greece Patent Application No. 20250100030 by LEI et al., entitled “COMMUNICATIONS FOR FREQUENCY MODULATED CONTINUOUS WAVE SIGNALS,” filed January 16, 2025, which is assigned to the assignee hereof, and expressly incorporated by reference in its entirety herein.FIELD OF TECHNOLOGY

[0002] The following relates to wireless communications, including communications for frequency modulated continuous wave signals.BACKGROUND

[0003] Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE- Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communications system may include one or more base stations, each supporting wireless communication for communication devices, which may be known as user equipment (UE).Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO2SUMMARY

[0004] The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.

[0005] A method by a first wireless device is described. The method may include communicating, with a second wireless device, control information associated with a frequency modulated continuous wave (FMCW) signal between the first wireless device and the second wireless device, where the control information indicates a switch from an orthogonal frequency-division multiplexing (OFDM) waveform to an FMCW waveform for one or more component carriers and transmitting, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0006] A first wireless device is described. The first wireless device may include one or more transceivers, one or more memory, and one or more processors electronically coupled to the one or more memory and the one or more transceivers. The one or more processors may be configured to communicate, with a second wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers and transmit, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0007] Another first wireless device is described. The first wireless device may include means for communicating, with a second wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers and means for transmitting, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0008] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by one or more processors to communicate, with a second wireless device, control information associated with a FMCW signalAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO3between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers and transmit, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0009] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the switch occurs after a period from communication of the control information.

[0010] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the control information includes downlink control information (DCI) or a medium access control control element (MAC CE) to indicate the switch from the OFDM waveform to the FMCW waveform.

[0011] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the control information indicates that the first wireless device may be to transmit FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling.

[0012] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the control information that indicates the switch may be multiplexed with second control information for adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof.

[0013] Some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting measurement data, a report, or assistance information to the second wireless device, where the switch occurs in response to the measurement data, the report, or the assistance information.

[0014] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the control information may be communicated via a first component carrier or a first bandwidth part and the FMCW signal may be transmitted via a second component carrier or a second bandwidth part that may be different from the first component carrier or the first bandwidth part.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO4

[0015] Some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the second wireless device, an indication of a partial or complete cancellation of FMCW signaling.

[0016] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the indication includes a starting and length indicator value (SLIV), a resource indication value (RIV), or a bitmap indicating one or more resources for which the FMCW signaling may be canceled.

[0017] Some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting an indication of a power for transmission of the FMCW signal to the second wireless device.

[0018] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the indication of the power may be transmitted via a MAC CE for a power headroom report (PHR).

[0019] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the FMCW signal may be transmitted via multiple bands with respective power amplifiers.

[0020] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the FMCW signal may be transmitted via aggregated bandwidths that may be configured separately from a sounding reference signal (SRS).

[0021] Some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting, to the second wireless device, an indication of a capability of the first wireless device to transmit the FMCW signal, and where the control information associated with the FMCW signal may be communicated based on the indication of the capability.

[0022] In some examples of the method, first wireless devices, and non-transitory computer-readable medium described herein, the FMCW signal may be transmitted asAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO5part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure.

[0023] A method by a second wireless device is described. The method may include communicating, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers and receiving, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0024] A second wireless device is described. The second wireless device may include one or more transceivers, one or more memory, and one or more processors electronically coupled to the one or more memory and the one or more transceivers. The one or more processors may be configured to communicate, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers and receive, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0025] Another second wireless device is described. The second wireless device may include means for communicating, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers and means for receiving, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0026] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by one or more processors to communicate, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform forAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO6one or more component carriers and receive, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0027] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the switch occurs after a period from communication of the control information.

[0028] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the control information includes DCI or a MAC CE to indicate the switch from the OFDM waveform to the FMCW waveform.

[0029] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the control information indicates that the first wireless device may be to transmit FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling.

[0030] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the control information that indicates the switch may be multiplexed with second control information for adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof.

[0031] Some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving measurement data, a report, or assistance information from the first wireless device, where the switch occurs in response to the measurement data, the report, or the assistance information.

[0032] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the control information may be communicated via a first component carrier or a first bandwidth part and the FMCW signal may be transmitted via a second component carrier or a second bandwidth part that may be different from the first component carrier or the first bandwidth part.

[0033] Some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein may further include operations, features,Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO7means, or instructions for transmitting, to the first wireless device, an indication of a partial or complete cancellation of FMCW signaling.

[0034] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the indication includes a SLIV, a RIV, or a bitmap indicating one or more resources for which the FMCW signaling may be canceled.

[0035] Some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving an indication of a power for transmission of the FMCW signal from the first wireless device.

[0036] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the indication of the power may be received via a MAC CE for a PHR.

[0037] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the FMCW signal may be received via multiple bands.

[0038] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the FMCW signal may be received via aggregated bandwidths that may be configured separately from an SRS.

[0039] Some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the first wireless device, an indication of a capability of the first wireless device to transmit the FMCW signal, and where the control information associated with the FMCW signal may be communicated based on the indication of the capability.

[0040] In some examples of the method, second wireless devices, and non-transitory computer-readable medium described herein, the FMCW signal may be received as part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO8

[0041] Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, the drawings, and the claims. Note that the relative dimensions of the following figures may not be drawn to scale.BRIEF DESCRIPTION OF THE DRAWINGS

[0042] FIG. 1 shows an example of a wireless communications system that supports communications for frequency modulated continuous wave (FMCW) signals in accordance with one or more aspects of the present disclosure.

[0043] FIG. 2 shows an example of a wireless communications system that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0044] FIG. 3 shows an example of a waveform switch that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0045] FIG. 4 shows an example of a timeline that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0046] FIG. 5 shows an example of a bitmap-based cancellation pattern that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0047] FIG. 6 shows an example of a process flow that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0048] FIGs. 7 and 8 show block diagrams of devices that support communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0049] FIG. 9 shows a block diagram of a communications manager that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO9

[0050] FIG. 10 shows a diagram of a system including a device that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0051] FIGs. 11 and 12 show block diagrams of devices that support communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0052] FIG. 13 shows a block diagram of a communications manager that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0053] FIG. 14 shows a diagram of a system including a device that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure.

[0054] FIGs. 15 through 18 show flowcharts illustrating methods that support communications for FMCW signals in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION

[0055] Some wireless communication devices utilize reference signals (e.g., a sounding reference signal (SRS)) for one or more procedures. For example, an SRS may be transmitted independently of a physical uplink channel (e.g., a physical uplink shared channel (PUSCH)) for channel quality estimation, beam management, sensing, or positioning procedures. A given SRS resource may be configured as periodic, aperiodic, or semi-persistent. In some approaches, a user equipment (UE) may be configured with K > 1 SRS resources, where a given X-port SRS resource may span N = 1, 2, or 4 adjacent symbols within a slot, and all X ports may be mapped to each symbol of the resource. In some aspects, SRS resources (e.g., resource elements) may be spaced in a frequency domain in accordance with a comb pattern. For instance, a spacing of k = 2 may produce a comb pattern where alternating resource elements in the frequency domain (e.g., of a symbol in a resource grid) are mapped for SRS communication. In another example, a spacing of k = 4 may produce a comb pattern where one in each four resource elements in the frequency domain (e.g., of a symbol in a resource grid) isAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO10mapped for SRS communication. In some cases, utilizing an SRS for channel quality estimation, beam management, sensing, or positioning may demand the use of a relatively high-speed analog-to-digital converter (ADC) or may consume a relatively large amount of processing resources for wideband channel estimation.

[0056] Some examples of the techniques described herein may utilize a frequency modulated continuous wave (FMCW) for one or more procedures. An FMCW may be signal or waveform with a frequency that increases (e.g., up-chirp) or decreases (e.g., down-chirp) approximately linearly with time. In an example of an FMCW with increasing frequency (e.g., up-chirp) and a bandwidth BW, the FMCW may vary linearly over time T in frequency from -BW / 2 to BW / 2 centered on a carrier frequency.

[0057] In some approaches, a first wireless device (e.g., UE) may transmit an FMCW to a second wireless device (e.g., network entity). The second wireless device may receive and process the FMCW to perform one or more procedures. For instance, the received FMCW signal (e.g., yRF,Rx(t) or a wideband signal) may be mixed via a mixer with a local FMCW signal (e.g., XRF,Rx(t) or a local FMCW signal generated using a voltage-controlled oscillator (VCO), which may be similar to the transmitted FMCW signal) to generate a beat signal (e.g., narrowband beat signal). For instance, the mixed signal (e.g., ymixed(t)) may be filtered using a low-pass filter (LPF) to produce a narrowband signal (e.g., y mixed, LPF(t)). The beat signal may be provided to an ADC.

[0058] A frequency of the beat signal may be referred to as a beat frequency. The beat frequency (e.g., a beat frequency that may be less than the bandwidth of the wideband signal or fb « B) may be utilized for channel quality estimation, beam management, sensing, or positioning procedures. For instance, each beat signal frequency fb may map to a specific target reflection for a sensing procedure.

[0059] Processing the FMCW may provide one or more improvements. For example, the FMCW may enable wideband sensing or channel estimation using narrowband baseband processing (e.g., reduced processing resources). A relatively low-speed ADC may be utilized to sample the beat signal. For instance, a relatively slow ADC may sample the beat signal in a range of tens of megahertz (MHz) or even less than 10 MHz, in contrast to sampling rates of several gigahertz (GHz) or hundreds of megahertz (MHz) for wideband signals. The lower sampling rate may allow for reducedAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO11processing or power consumption. Narrowband processing may additionally, or alternatively, offer relatively low peak-to-average-power ratio (PAPR), or may facilitate relatively low-complexity full duplex sensing. For example, a wireless device (e.g., UE) may utilize the FMCW for ultra-wideband sensing. Narrowband baseband processing for wideband radio frequency (RF) sensing may be one reason to utilize the FMCW. For example, even if a sensing bandwidth is 4 GHz, lower baseband processing for the wireless device may be performed.

[0060] Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are additionally described in the context of diagrams of a waveform switch, a timeline, a bitmap-based cancellation pattern, and a process flow. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to communications for FMCW signals.

[0061] FIG. 1 shows an example of a wireless communications system 100 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The wireless communications system 100 may include one or more devices, such as one or more network devices (e.g., network entities 105), one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE- A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating in accordance with other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.

[0062] The network entities 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may include devices in different forms or having different capabilities. In various examples, a network entity 105 may be referred to as a network element, a mobility element, a radio access network (RAN) node, or network equipment, among other nomenclature. In some examples, network entities 105 and UEs 115 may wirelessly communicate via communication link(s) 125 (e.g., a radio frequency (RF) access link). For example, a network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entity 105 may establish the communication link(s) 125. The coverage area 110 may be an example of a geographic area over which a network entity 105 and a Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO12UE 115 may support the communication of signals according to one or more radio access technologies (RATs).

[0063] The UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communications with various types of devices in the wireless communications system 100 (e.g., other wireless communication devices, including UEs 115 or network entities 105), as shown in FIG. 1.

[0064] As described herein, a node of the wireless communications system 100, which may be referred to as a network node, or a wireless node, may be a network entity 105 (e.g., any network entity described herein), a UE 115 (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be a UE 115. As another example, a node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In yet other aspects of this example, the first, second, and third nodes may be different relative to these examples. Similarly, reference to a UE 115, network entity 105, apparatus, device, computing system, or the like may include disclosure of the UE 115, network entity 105, apparatus, device, computing system, or the like being a node. For example, disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.

[0065] In some examples, network entities 105 may communicate with a core network 130, or with one another, or both. For example, network entities 105 may communicate with the core network 130 via backhaul communication link(s) 120 (e.g., in accordance with an SI, N2, N3, or other interface protocol). In some examples, network entities 105 may communicate with one another via backhaul communication Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO13link(s) 120 (e.g., in accordance with an X2, Xn, or other interface protocol) either directly (e.g., directly between network entities 105) or indirectly (e.g., via the core network 130). In some examples, network entities 105 may communicate with one another via a midhaul communication link 162 (e.g., in accordance with a midhaul interface protocol) or a fronthaul communication link 168 (e.g., in accordance with a fronthaul interface protocol), or any combination thereof. The backhaul communication link(s) 120, midhaul communication links 162, or fronthaul communication links 168 may be or include one or more wired links (e.g., an electrical link, an optical fiber link) or one or more wireless links (e.g., a radio link, a wireless optical link), among other examples or various combinations thereof. A UE 115 may communicate with the core network 130 via a communication link 155.

[0066] One or more of the network entities 105 or network equipment described herein may include or may be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, an NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB), a 5GNB, a next-generation eNB (ng-eNB), a Home NodeB, a Home eNodeB, or other suitable terminology). In some examples, a network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack that is physically or logically integrated within one network entity (e.g., a network entity 105 or a single RAN node, such as a base station 140).

[0067] In some examples, a network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture), which may be configured to utilize a protocol stack that is physically or logically distributed among multiple network entities (e.g., network entities 105), such as an integrated access and backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, a network entity 105 may include one or more of a central unit (CU), such as a CU 160, a distributed unit (DU), such as a DU 165, a radio unit (RU), such as an RU 170, a RAN Intelligent Controller (RIC), such as an RIC 175 (e.g., a Near-Real Time RIC (Near-RT RIC), a Non-Real Time RIC (Non-RT RIC)), a Service Management and Orchestration (SMO)Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO14system, such as an SMO system 180, or any combination thereof. An RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmission reception point (TRP). One or more components of the network entities 105 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more of the network entities 105 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU), a virtual DU (VDU), a virtual RU (VRU)).

[0068] The split of functionality between a CU 160, a DU 165, and an RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, or any combinations thereof) are performed at a CU 160, a DU 165, or an RU 170. For example, a functional split of a protocol stack may be employed between a CU 160 and a DU 165 such that the CU 160 may support one or more layers of the protocol stack and the DU 165 may support one or more different layers of the protocol stack. In some examples, the CU 160 may host upper protocol layer (e.g., layer 3 (L3), layer 2 (L2)) functionality and signaling (e.g., Radio Resource Control (RRC), service data adaptation protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU 160 (e.g., one or more CUs) may be connected to a DU 165 (e.g., one or more DUs) or an RU 170 (e.g., one or more RUs), or some combination thereof, and the DUs 165, RUs 170, or both may host lower protocol layers, such as layer 1 (LI) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU 165 and an RU 170 such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or multiple different cells (e.g., via one or multiple different RUs, such as an RU 170). In some cases, a functional split between a CU 160 and a DU 165 or between a DU 165 and an RU 170 may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU 160, a DU 165, or an RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, the DU 165, or the RU 170). A CU 160 may beAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO15functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU 160 may be connected to a DU 165 via a midhaul communication link 162 (e.g., Fl, Fl-c, Fl-u), and a DU 165 may be connected to an RU 170 via a fronthaul communication link 168 (e.g., open fronthaul (FH) interface). In some examples, a midhaul communication link 162 or a fronthaul communication link 168 may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities (e.g., one or more of the network entities 105) that are in communication via such communication links.

[0069] In some wireless communications systems (e.g., the wireless communications system 100), infrastructure and spectral resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, providing an IAB network architecture (e.g., to a core network 130). In some cases, in an IAB network, one or more of the network entities 105 (e.g., network entities 105 or IAB node(s) 104) may be partially controlled by each other. The IAB node(s) 104 may be referred to as a donor entity or an IAB donor. A DU 165 or an RU 170 may be partially controlled by a CU 160 associated with a network entity 105 or base station 140 (such as a donor network entity or a donor base station). The one or more donor entities (e.g., IAB donors) may be in communication with one or more additional devices (e.g., IAB node(s) 104) via supported access and backhaul links (e.g., backhaul communication link(s) 120). IAB node(s) 104 may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by one or more DUs (e.g., DUs 165) of a coupled IAB donor. An IAB-MT may be equipped with an independent set of antennas for relay of communications with UEs 115 or may share the same antennas (e.g., of an RU 170) of IAB node(s) 104 used for access via the DU 165 of the IAB node(s) 104 (e.g., referred to as virtual IAB-MT (vIAB-MT)). In some examples, the IAB node(s) 104 may include one or more DUs (e.g., DUs 165) that support communication links with additional entities (e.g., IAB node(s) 104, UEs 115) within the relay chain or configuration of the access network (e.g., downstream). In such cases, one or more components of the disaggregated RAN architecture (e.g., the IAB node(s) 104 or components of the IAB node(s) 104) may be configured to operate according to the techniques described herein.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO16

[0070] For instance, an access network (AN) or RAN may include communications between access nodes (e.g., an IAB donor), IAB node(s) 104, and one or more UEs 115. The IAB donor may facilitate connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, an IAB donor may refer to a RAN node with a wired or wireless connection to the core network 130. The IAB donor may include one or more of a CU 160, a DU 165, and an RU 170, in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and IAB node(s) 104 may communicate via an Fl interface according to a protocol that defines signaling messages (e.g., an Fl AP protocol). Additionally, or alternatively, the CU 160 may communicate with the core network 130 via an interface, which may be an example of a portion of a backhaul link, and may communicate with other CUs (e.g., including a CU 160 associated with an alternative IAB donor) via an Xn-C interface, which may be an example of another portion of a backhaul link.

[0071] IAB node(s) 104 may refer to RAN nodes that provide IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities). A DU 165 may act as a distributed scheduling node towards child nodes associated with the IAB node(s) 104, and the IAB-MT may act as a scheduled node towards parent nodes associated with IAB node(s) 104. That is, an IAB donor may be referred to as a parent node in communication with one or more child nodes (e.g., an IAB donor may relay transmissions for UEs through other IAB node(s) 104). Additionally, or alternatively, IAB node(s) 104 may also be referred to as parent nodes or child nodes to other IAB node(s) 104, depending on the relay chain or configuration of the AN. The IAB-MT entity of IAB node(s) 104 may provide a Uu interface for a child IAB node (e.g., the IAB node(s) 104) to receive signaling from a parent IAB node (e.g., the IAB node(s) 104), and a DU interface (e.g., a DU 165) may provide a Uu interface for a parent IAB node to signal to a child IAB node or UE 115.

[0072] For example, IAB node(s) 104 may be referred to as parent nodes that support communications for child IAB nodes, or may be referred to as child IAB nodes associated with IAB donors, or both. An IAB donor may include a CU 160 with a wired or wireless connection (e.g., backhaul communication link(s) 120) to the core network 130 and may act as a parent node to IAB node(s) 104. For example, the DU 165 of anAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO17IAB donor may relay transmissions to UEs 115 through IAB node(s) 104, or may directly signal transmissions to a UE 115, or both. The CU 160 of the IAB donor may signal communication link establishment via an Fl interface to IAB node(s) 104, and the IAB node(s) 104 may schedule transmissions (e.g., transmissions to the UEs 115 relayed from the IAB donor) through one or more DUs (e.g., DUs 165). That is, data may be relayed to and from IAB node(s) 104 via signaling via an NR Uu interface to MT of IAB node(s) 104 (e.g., other IAB node(s)). Communications with IAB node(s) 104 may be scheduled by a DU 165 of the IAB donor or of IAB node(s) 104.

[0073] In the case of the techniques described herein applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support communications for FMCW signals as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally, or alternatively, be performed by one or more components of the disaggregated RAN architecture (e.g., components such as an IAB node, a DU 165, a CU 160, an RU 170, an RIC 175, an SMO system 180).

[0074] A UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (loT) device, an Internet of Everything (loE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, vehicles, or meters, among other examples.

[0075] The UEs 115 described herein may be able to communicate with various types of devices, such as UEs 115 that may sometimes operate as relays, as well as the network entities 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO18

[0076] The UEs 115 and the network entities 105 may wirelessly communicate with one another via the communication link(s) 125 (e.g., one or more access links) using resources associated with one or more carriers. The term “carrier” may refer to a set of RF spectrum resources having a defined PHY layer structure for supporting the communication link(s) 125. For example, a carrier used for the communication link(s) 125 may include a portion of an RF spectrum band (e.g., a bandwidth part (BWP)) that is operated according to one or more PHY layer channels for a given RAT (e.g., LTE, LTE-A, LTE-A Pro, NR). Each PHY layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers. Communication between a network entity 105 and other devices may refer to communication between the devices and any portion (e.g., entity, sub-entity) of a network entity 105. For example, the terms “transmitting,” “receiving,” or “communicating,” when referring to a network entity 105, may refer to any portion of a network entity 105 (e.g., a base station 140, a CU 160, a DU 165, a RU 170) of a RAN communicating with another device (e.g., directly or via one or more other network entities, such as one or more of the network entities 105).

[0077] In some examples, such as in a carrier aggregation configuration, a carrier may have acquisition signaling or control signaling that coordinates operations for other carriers. A carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute RF channel number (EARFCN)) and may be identified according to a channel raster for discovery by the UEs 115. A carrier may be operated in a standalone mode, in which case initial acquisition and connection may be conducted by the UEs 115 via the carrier, or the carrier may be operated in a non- standalone mode, in which case a connection is anchored using a different carrier (e.g., of the same or a different RAT).Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO19

[0078] The communication link(s) 125 of the wireless communications system 100 may include downlink transmissions (e.g., forward link transmissions) from a network entity 105 to a UE 115, uplink transmissions (e.g., return link transmissions) from a UE 115 to a network entity 105, or both, among other configurations of transmissions. Carriers may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode).

[0079] A carrier may be associated with a particular bandwidth of the RF spectrum and, in some examples, the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100. For example, the carrier bandwidth may be one of a set of bandwidths for carriers of a particular RAT (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). Devices of the wireless communications system 100 (e.g., the network entities 105, the UEs 115, or both) may have hardware configurations that support communications using a particular carrier bandwidth or may be configurable to support communications using one of a set of carrier bandwidths. In some examples, the wireless communications system 100 may include network entities 105 or UEs 115 that support concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured for operating using portions (e.g., a sub-band, a BWP) or all of a carrier bandwidth.

[0080] Signal waveforms transmitted via a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency-division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may refer to resources of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The quantity of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), such that a relatively higher quantity of resource elements (e.g., in a transmission duration) and a relatively higher order of a modulation scheme may correspond to a relatively higher rate of communication. A wireless communications resource may refer to a combination of an RF spectrum resource, a time resource, and a spatial resource (e.g., a spatial layer, a beam), and the use ofAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO20multiple spatial resources may increase the data rate or data integrity for communications with a UE 115.

[0081] One or more numerologies for a carrier may be supported, and a numerology may include a subcarrier spacing (A ) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time and communications for the UE 115 may be restricted to one or more active BWPs.

[0082] The time intervals for the network entities 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of Ts= l / (A / max■ Ay) seconds, for which fmaxmay represent a supported subcarrier spacing, and Ay may represent a supported discrete Fourier transform (DFT) size. Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0083] Each frame may include multiple consecutively-numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a quantity of slots. Alternatively, each frame may include a variable quantity of slots, and the quantity of slots may depend on subcarrier spacing. Each slot may include a quantity of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period). In some wireless communications systems, such as the wireless communications system 100, a slot may further be divided into multiple mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., Ay) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.

[0084] A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., a quantity of symbol periods in a TTI) may be variable. Additionally, orAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO21alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0085] Physical channels may be multiplexed for communication using a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed for signaling via a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to an amount of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to UEs 115 (e.g., one or more UEs) or may include UE-specific search space sets for sending control information to a UE 115 (e.g., a specific UE).

[0086] A network entity 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with a network entity 105 (e.g., using a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID)). In some examples, a cell also may refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) over which the logical communication entity operates. Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas depending on various factors such as the capabilities of the network entity 105. For example, a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping with coverage areas 110, among other examples.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO1

[0087] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider supporting the macro cell. A small cell may be associated with a network entity 105 operating with lower power (e.g., a base station 140 operating with lower power) relative to a macro cell, and a small cell may operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the network provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g., the UEs 115 in a closed subscriber group (CSG), the UEs 115 associated with users in a home or office). A network entity 105 may support one or more cells and may also support communications via the one or more cells using one or multiple component carriers.

[0088] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband loT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access for different types of devices.

[0089] In some examples, a network entity 105 (e.g., a base station 140, an RU 170) may be movable and therefore provide communication coverage for a moving coverage area, such as the coverage area 110. In some examples, coverage areas 110 (e.g., different coverage areas) associated with different technologies may overlap, but the coverage areas 110 (e.g., different coverage areas) may be supported by the same network entity (e.g., a network entity 105). In some other examples, overlapping coverage areas, such as a coverage area 110, associated with different technologies may be supported by different network entities (e.g., the network entities 105). The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the network entities 105 support communications for coverage areas 110 (e.g., different coverage areas) using the same or different RATs.

[0090] The wireless communications system 100 may support synchronous or asynchronous operation. For synchronous operation, network entities 105 (e.g., base stations 140) may have similar frame timings, and transmissions from different network entities (e.g., different ones of the network entities 105) may be approximately aligned in time. For asynchronous operation, network entities 105 may have different frame Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO23timings, and transmissions from different network entities (e.g., different ones of network entities 105) may, in some examples, not be aligned in time. The techniques described herein may be used for either synchronous or asynchronous operations.

[0091] Some UEs 115, such as MTC or loT devices, may be relatively low cost or low complexity devices and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication). M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a network entity 105 (e.g., a base station 140) without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that uses the information or presents the information to humans interacting with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.

[0092] Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception concurrently). In some examples, half-duplex communications may be performed at a reduced peak rate. Other power conservation techniques for the UEs 115 may include entering a power saving deep sleep mode when not engaging in active communications, operating using a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs)) within a carrier, within a guard-band of a carrier, or outside of a carrier.

[0093] The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO24support ultra-reliable low-latency communications (URLLC). The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions. Ultra-reliable communications may include private communication or group communication and may be supported by one or more services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.

[0094] In some examples, a UE 115 may be configured to support communicating directly with other UEs (e.g., one or more of the UEs 115) via a device-to-device (D2D) communication link, such as a D2D communication link 135 (e.g., in accordance with a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 of a group that are performing D2D communications may be within the coverage area 110 of a network entity 105 (e.g., a base station 140, an RU 170), which may support aspects of such D2D communications being configured by (e.g., scheduled by) the network entity 105. In some examples, one or more UEs 115 of such a group may be outside the coverage area 110 of a network entity 105 or may be otherwise unable to or not configured to receive transmissions from a network entity 105. In some examples, groups of the UEs 115 communicating via D2D communications may support a one-to-many (1 :M) system in which each UE 115 transmits to one or more of the UEs 115 in the group. In some examples, a network entity 105 may facilitate the scheduling of resources for D2D communications. In some other examples, D2D communications may be carried out between the UEs 115 without an involvement of a network entity 105.

[0095] In some systems, a D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115). In some examples, vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. A vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or moreAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO25network nodes (e.g., network entities 105, base stations 140, RUs 170) using vehicle-to-network (V2N) communications, or with both.

[0096] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC), which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW), a Packet Data Network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, Intranet(s), an IP Multimedia Subsystem (IMS), or a Packet-Switched Streaming Service.

[0097] The wireless communications system 100 may operate using one or more frequency bands, which may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, which may be referred to as clusters, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than one hundred kilometers) compared to communications using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0098] The wireless communications system 100 may also operate using a super high frequency (SHF) region, which may be in the range of 3 GHz to 30 GHz, alsoAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO26known as the centimeter band, or using an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz), also known as the millimeter band. In some examples, the wireless communications system 100 may support millimeter wave (mmW) communications between the UEs 115 and the network entities 105 (e.g., base stations 140, RUs 170), and EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, such techniques may facilitate using antenna arrays within a device. The propagation of EHF transmissions, however, may be subject to even greater attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.

[0099] The wireless communications system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) RAT, or NR technology using an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. While operating using unlicensed RF spectrum bands, devices such as the network entities 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations using unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating using a licensed band (e.g., LAA). Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0100] A network entity 105 (e.g., a base station 140, an RU 170) or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of a network entity 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a network entity 105 may be located at diverse geographic locations. A network entity 105 may include an antenna array with a set of rows and columns of antenna ports that theAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO27network entity 105 may use to support beamforming of communications with a UE 115. Likewise, a UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally, or alternatively, an antenna panel may support RF beamforming for a signal transmitted via an antenna port.

[0101] The network entities 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas.Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), for which multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO), for which multiple spatial layers are transmitted to multiple devices.

[0102] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating along particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to theAttorney Docket No. PY2659GR.WO (114958.TBD)QualcommRef. No. 2407012WO28antenna array of the transmitting device or receiving device, or with respect to some other orientation).

[0103] A network entity 105 or a UE 115 may use beam sweeping techniques as part of beamforming operations. For example, a network entity 105 (e.g., a base station 140, an RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a network entity 105 multiple times along different directions. For example, the network entity 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device, such as a network entity 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the network entity 105.

[0104] Some signals, such as data signals associated with a particular receiving device, may be transmitted by a transmitting device (e.g., a network entity 105 or a UE 115) along a single beam direction (e.g., a direction associated with the receiving device, such as another network entity 105 or UE 115). In some examples, the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted along one or more beam directions. For example, a UE 115 may receive one or more of the signals transmitted by the network entity 105 along different directions and may report to the network entity 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.

[0105] In some examples, transmissions by a device (e.g., by a network entity 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from a network entity 105 to a UE 115). The UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured set of beams across a system bandwidth or one or more sub-bands. The network entity 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI- Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO29RS)), which may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques are described with reference to signals transmitted along one or more directions by a network entity 105 (e.g., a base station 140, an RU 170), a UE 115 may employ similar techniques for transmitting signals multiple times along different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal along a single direction (e.g., for transmitting data to a receiving device).

[0106] A receiving device (e.g., a UE 115) may perform reception operations in accordance with multiple receive configurations (e.g., directional listening) when receiving various signals from a transmitting device (e.g., a network entity 105), such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device may perform reception in accordance with multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening according to multiple beam directions).

[0107] The wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP -based. An RLC layer may perform packet segmentation and reassembly to communicate via logical channels. A MAC layer mayAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO30perform priority handling and multiplexing of logical channels into transport channels. The MAC layer also may implement error detection techniques, error correction techniques, or both to support retransmissions to improve link efficiency. In the control plane, an RRC layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a network entity 105 or a core network 130 supporting radio bearers for user plane data. A PHY layer may map transport channels to physical channels.

[0108] The UEs 115 and the network entities 105 may support retransmissions of data to increase the likelihood that data is received successfully. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is received correctly via a communication link (e.g., the communication link(s) 125, a D2D communication link 135). HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve throughput at the MAC layer in relatively poor radio conditions (e.g., low signal -to-noise conditions). In some examples, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a specific slot for data received via a previous symbol in the slot. In some other examples, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.

[0109] Some wireless communication devices utilize reference signals (e.g., an SRS) for one or more procedures. For example, an SRS may be transmitted independently of a PUSCH for channel quality estimation, beam management, sensing, or positioning procedures. A given SRS resource may be configured as periodic, aperiodic, or semi-persistent. In some approaches, a UE 115 may be configured with K > 1 SRS resources, where a given X-port SRS resource may span N = 1, 2, or 4 adjacent symbols within a slot, and all X ports may be mapped to each symbol of the resource. In some aspects, SRS resources (e.g., resource elements) may be spaced in a frequency domain in accordance with a comb pattern. For instance, a spacing of k = 2 may produce a comb pattern where alternating resource elements in the frequency domain (e.g., of a symbol in a resource grid) are mapped for SRS communication. In another example, a spacing of k = 4 may produce a comb pattern where one in each four resource elements in the frequency domain (e.g., of a symbol in a resource grid) isAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO31mapped for SRS communication. In some cases, utilizing an SRS for channel quality estimation, beam management, sensing, or positioning may demand the use of a relatively high-speed ADC or may consume a relatively large amount of processing resources for wideband channel estimation.

[0110] Some examples of the techniques described herein may utilize an FMCW for one or more procedures. An FMCW may be signal or waveform with a frequency that increases (e.g., up-chirp) or decreases (e.g., down-chirp) approximately linearly with time. In an example of an FMCW with increasing frequency (e.g., up-chirp) and a bandwidth BW, the FMCW may vary linearly over time T in frequency from -BW / 2 to BW / 2 centered on a carrier frequency.[OHl] In some approaches, a first wireless device (e.g., UE 115) may transmit an FMCW to a second wireless device (e.g., network entity 105). The second wireless device may receive and process the FMCW to perform one or more procedures. For instance, the received FMCW signal (e.g., yRF,Rx(t) or a wideband signal) may be mixed via a mixer with a local FMCW signal (e.g., XRF,RX(I) or a local FMCW signal generated using a VCO, which may be similar to the transmitted FMCW signal) to generate a beat signal (e.g., narrowband beat signal). For instance, the mixed signal (e.g., ymixed(t)) may be filtered using an LPF to produce a narrowband signal (e.g., y mixed, LPF(t)). The beat signal may be provided to an ADC.

[0112] A frequency of the beat signal may be referred to as a beat frequency. The beat frequency (e.g., a beat frequency that may be less than the bandwidth of the wideband signal or fb « B) may be utilized for channel quality estimation, beam management, sensing, or positioning procedures. For instance, each beat signal frequency fb may map to a specific target reflection for a sensing procedure.

[0113] Processing the FMCW may provide one or more improvements. For example, the FMCW may enable wideband sensing or channel estimation using narrowband baseband processing (e.g., reduced processing resources). A relatively low-speed ADC may be utilized to sample the beat signal. For instance, a relatively slow ADC may sample the beat signal in a range of tens of MHz or even less than 10 MHz, in contrast to sampling rates of several GHz or hundreds of MHz for wideband signals. The lower sampling rate may allow for reduced processing or power consumption.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO32Narrowband processing may additionally, or alternatively, offer relatively low PAPR, or may facilitate relatively low-complexity full duplex sensing. For example, a wireless device (e.g., UE 115) may utilize the FMCW for ultra-wideband sensing. Narrowband baseband processing for wideband RF sensing may be one reason to utilize the FMCW. For example, even if a sensing bandwidth is 4 GHz, lower baseband processing for the wireless device may be performed.

[0114] FIG. 2 shows an example of a wireless communications system 200 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The wireless communications system 200 may implement aspects of or may be implemented by aspects of the wireless communications system 100. For instance, the wireless communications system 200 may include a first wireless device 215 and a second wireless device 220. In some aspects, the first wireless device 215 may be an example of a UE 115 as described with respect to FIG. 1 or the second wireless device 220 may be an example of a network entity 105 as described with respect to FIG. 1. In some aspects, the second wireless device 220 may be an example of a UE 115 as described with respect to FIG. 1 or the first wireless device 215 may be an example of a network entity 105 as described with respect to FIG. 1. In some aspects, the first wireless device 215 and the second wireless device 220 may be examples of UEs 115 as described with respect to FIG. 1. In some aspects, the first wireless device 215 and the second wireless device 220 may be examples of network entities 105 as described with respect to FIG. 1.

[0115] The first wireless device 215 may communicate with the second wireless device 220 using one or more communication links 125-a, which may be an example of a communication link 125 described with respect to FIG. 1. The communication link 125-a may include a uni-directional or bi-directional link that enables uplink or downlink network communications, or that enables sidelink communications. For example, the first wireless device 215 may transmit one or more transmissions (e.g., uplink, downlink, or sidelink control signals or data signals), to the second wireless device 220 using the communication link 125-a, or the second wireless device 220 may transmit one or more transmissions (e.g., downlink, uplink, or sidelink control signals or data signals), to the first wireless device 215 using the communication link 125-a.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO33

[0116] The first wireless device 215 may communicate, with the second wireless device 220, control information 240 associated with an FMCW signal 245 between the first wireless device 215 and the second wireless device 220. For instance, the first wireless device 215 may transmit, or the second wireless device 220 may receive, the control information 240. Additionally, or alternatively, the second wireless device 220 may transmit, or the first wireless device 215 may receive, the control information 240. The control information 240 may indicate one or more parameters (e.g., a switch between waveforms, timing, resources, bandwidth, or slope of a frequency change over time, among other examples).

[0117] In some approaches, the control information 240 may indicate a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. For instance, the control information 240 may indicate waveform switching between OFDM and FMCW on a single component carrier or multiple component carriers. An example of a switch between OFDM component carriers and an FMCW waveform is provided with reference to FIG. 3.

[0118] The first wireless device 215 may output (e.g., transmit), or the second wireless device 220 may obtain (e.g., receive), the FMCW signal 245 based at least in part on the control information 240 associated with the FMCW signal 245. For example, the FMCW signal 245 may be transmitted via one or more resources corresponding to the component carrier(s) indicated by the control information 240.

[0119] In some examples, the first wireless device 215 may perform digital FMCW waveform generation (e.g., for SRS). For instance, an FMCW waveform may be generated (e.g., approximated) by a combination of multiple carriers and synthesized using a discrete Fourier transform (DFT) or OFDM. In some cases, a digital-generated FMCW may be subject to distortions at the transmitter side or may be implemented with a relatively high implementation cost. In some approaches, digital FMCW waveform generation may be performed by a radio or RF chain (e.g., a digital radio, OFDM radio, main radio, or RF chain of the first wireless device 215, among other examples).

[0120] In some examples, the first wireless device 215 may perform analog FMCW waveform generation. For instance, the first wireless device 215 may include an RF subsystem or RF chain that may be utilized to generate the analog FMCW waveformAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO34(e.g., without digital waveform generation, for instance). In comparison to digital generation, an analog FMCW waveform generated by an RF subsystem or RF chain may provide increased accuracy or lower implementation complexity or cost, which may be helpful for channel sounding, positioning, or RF sensing. For example, it may be helpful to have an RF subsystem or RF chain (e.g., additional, separate, or auxiliary RF chain, among other examples) on the uplink for analog FMCW waveform generation to enable increased accuracy or relatively low-power channel sounding, positioning, or RF sensing (which may be considered to be an analogue to a UE architecture with multiple radios, such as a low-power radio and a main radio on the downlink, for instance). In some approaches, analog FMCW waveform generation may be performed by a radio or RF chain (e.g., an analog radio, auxiliary radio, separate radio, or an additional or separate RF chain from an OFDM radio of the first wireless device 215, among other examples).

[0121] In some approaches, the control information 240 may include downlink control information (DCI) or a medium access control control element (MAC CE) to indicate the switch from the OFDM waveform to the FMCW waveform. For instance, one or more DCIs or MAC CEs may indicate waveform switching between OFDM and FMCW on one or more component carriers.

[0122] In some examples, the control information 240 may be communicated via a first component carrier or a first bandwidth part and the FMCW signal 245 may be transmitted via a second component carrier or a second bandwidth part that is different from the first component carrier or the first bandwidth part. For instance, the component carrier(s) or bandwidth part(s) on which the first wireless device 215 (e.g., UE) receives the switching indication may be different from the component carrier(s) or bandwidth part(s) on which the waveform type changes.

[0123] In some aspects, the control information 240 may indicate that the first wireless device 215 is to output (e.g., transmit) FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling. For example, the control information 240 may indicate a dynamic switching command that applies to aperiodic reference signaling, or activation or deactivation of periodic or semi-persistent reference signaling.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO35

[0124] In some examples, the control information 240 that indicates the switch may be multiplexed with second control information for adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof. For instance, a waveform switching indication (e.g., command) may be multiplexed with other control signaling indicating adaptation of time or frequency resource allocation, switching of antenna ports, or switching of power control parameters, among other examples.

[0125] In some approaches, the first wireless device 215 may output (e.g., transmit), or the second wireless device 220 may obtain (e.g., receive), measurement data, a report, or assistance information. The switch may occur in response to the measurement data, the report, or the assistance information. To trigger waveform switching, for instance, the first wireless device 215 (e.g., a UE) may communicate (e.g., report) an indication of measurements for one or more serving or neighbor cells, may communicate a buffer status report (BSR), may communicate a power headroom report (PHR), or may communicate assistance information, among other examples.

[0126] In some approaches, the switch (between an OFDM waveform and an FMCW waveform, for instance) may occur after a period from communication of the control information 240. For example, a gap of (e.g., a minimum gap of Kgap) symbols may be utilized to enable waveform switching. In some aspects, the period or gap size may be based on a signaling format (e.g., larger gap may be utilized for MAC CE signaling due to a latency for MAC layer processing), wireless device (e.g., UE) capability(ies), or a reference numerology of the component carrier(s) on which the switching indication (e.g., control information 240) is communicated (e.g., transmitted or received). An example of a period or gap is provided with reference to FIG. 4.

[0127] In some examples, the second wireless device 220 may output (e.g., transmit), or the first wireless device 215 may obtain (e.g., receive), an indication of a cancellation of FMCW signaling. For instance, the first wireless device 215 and the second wireless device 220 may communicate an indication of a partial or full cancellation of the FMCW waveform. In addition to, or alternatively from, dynamic waveform switching, the radio resources configured for the FMCW waveform may be partially or fully reclaimed by the network (and reallocated for one or more other uplink or downlink channels with a higher priority, such as a PUCCH, a PUSCH, or a physicalAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO36random access channel (PRACH), for instance). For instance, after an FMCW waveform is configured or after a switch to an FMCW waveform is indicated, the indication of the cancellation of FMCW signaling may be communicated to cancel one or more resources assigned to the FMCW signal. The one or more resources may be utilized for other signaling (e.g., PUCCH, PUSCH, PRACH, or OFDM-based SRS, among other examples). In some examples, the indication of the cancellation may be communicated (e.g., transmitted or received) via DCI or a MAC CE, among other examples.

[0128] In some approaches, the indication of the cancellation may include a starting and length indicator value (SLIV), a resource indication value (RIV), or a bitmap indicating one or more resources for which the FMCW signaling is canceled. For instance, one or more approaches may be utilized for indicating one or more cancellation patterns a time or frequency domain. In one approach for a cancellation in the time domain, an SLIV-based indication may be utilized (e.g., a channel resource allocation scheme may be utilized, which may be similar to a channel resource allocation scheme for a data channel). In some examples, the SLIV-based indication may be utilized for a continuous cancellation (e.g., a cancellation for a period of time, over a set of symbols, or for a “length” provided by the SLIV-based indication). In another approach for a cancellation in the time domain, a bitmap-based indication may be utilized. For instance, the bitmap-based indication may be utilized for continuous or discrete cancellation. In discrete cancellation, one or more symbols may be indicated individually, which may allow continuous or discrete (e.g., one or more symbols indicated that are not necessarily in a continuous range) cancellation. In one approach for a cancellation in the frequency domain, an RIV-based indication may be utilized (e.g., a channel resource allocation scheme may be utilized, which may be similar to a channel resource allocation scheme for a data channel). In another approach for a cancellation in the frequency domain, a bitmap-based indication may be utilized. An example of a bitmap-based indication is provided with reference to FIG. 5.

[0129] Some examples of the techniques described herein may provide power domain management for the FMCW waveform. For relatively wideband sweeping, the FMCW waveform may demand a higher transmission power or a different powerAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO37control scheme than the OFDM waveform to satisfy a coverage target for channel sounding, positioning, or RF sensing.

[0130] In some aspects, the first wireless device 215 may output (e.g., transmit), or the second wireless device 220 may obtain (e.g., receive), an indication of a power for transmission of the FMCW signal 245. For instance, a power (e.g., maximum power or Pcmax) for an FMCW waveform transmission may be reported by the first wireless device 215 (e.g., UE) for a reference bandwidth. The reference bandwidth may be a configured parameter based on a capability of the first wireless device 215 (e.g., a UE RF capability), or may be specified with respect to aggregated component carriers configured for wideband transmission, or for an active uplink bandwidth part. For instance, the second wireless device 220 may output (e.g., transmit), or the first wireless device 215 may obtain (e.g., receive), configuration information indicating the reference bandwidth. The indication of the power for transmission may be determined or communicated based on the reference bandwidth.

[0131] In some approaches, the indication of the power may be communicated (e.g., transmitted or received) via a MAC CE for a PHR. For instance, the first wireless device 215 (e.g., UE) may report Pcmax in a single or multi-entry MAC CE for a PHR.

[0132] In some aspects, the FMCW signal 245 may be communicated (e.g., transmitted or received) via multiple bands with respective power amplifiers. For example, if the first wireless device 215 (e.g., UE) has multiple (e.g., dual) power amplifiers, the first wireless device 215 may support power class aggregation (e.g., as capability). The first wireless device 215 may increase a power limit (e.g., upper power limit) for FMCW transmission, or may transmit concurrently on multiple bands with aggregated power (e.g., PCX+PCY) higher than a power class (e.g., maximum power class or max(PCX, PCY)). For instance, PCX and PCY may each denote a power class (PC) associated with band X and band Y, respectively. A power class (of a wireless device or UE, for instance) may refer to a transmit power capability (e.g., maximum power transmission capability) without accounting for a tolerance of a power amplifier, where relatively higher power classes may indicate relatively larger transmit power potential. Table (1) illustrates some examples of UE power classes for various NR frequency bands, where the power classes are expressed in units of decibel-milliwatts (dBm) and the tolerances are expressed in units of decibels (dB).Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO38Atorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO39Table (1)

[0133] On some frequency bands (e.g., n41), two different power classes may be established for UEs with different power capabilities (e.g., a UE with a first transmit power capability may support a higher power class PC2 (26 dBm), a UE with a second transmit power capability may support (e.g., may only support) power class PC3 (23 dBm)). In some examples of the techniques described herein for power domain enhancement, if a wireless device (e.g., UE) is equipped with two power amplifiers, the wireless device may increase a transmission power beyond a band-specific power class. For instance, the wireless device may aggregate the transmit power (e.g., maximum transmit power) on band X and band Y to transmit an FMCW waveform spanning both band X and band Y.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO40

[0134] In some examples, the FMCW signal 245 may be communicated (e.g., transmitted or received) via aggregated bandwidths that may be configured separately from an SRS. For instance, the FMCW may utilize a bandwidth aggregation that is different from some approaches for an SRS or positioning reference signal (PRS) waveform based on OFDM. In some approaches, bandwidth aggregation for FMCW may be supported for subband full duplex (SBFD), intra-band carrier aggregation, interband carrier aggregation, or other carrier aggregation. A bandwidth aggregation capability for FMCW may be configured separately from positioning SRS, which may be decoupled from the uplink carrier aggregation capability for a PUSCH or a physical uplink control channel (PUCCH). In some examples, numerologies of the aggregated subbands or component carrier may be different for FMCW. In some aspects, a same numerology may be supported as a baseline capability. For intra-band non-contiguous carrier aggregation, inter-band carrier aggregation, or other carrier aggregation, the transmit power spectral density (PSD) may be different (e.g., subject to a retuning gap that may be based on wireless device or UE capabilities).

[0135] In some approaches, the first wireless device 215 may output (e.g., transmit), or the second wireless device 220 may obtain (e.g., receive), an indication of a capability of the first wireless device 215 to transmit the FMCW signal 245. The control information 240 associated with the FMCW signal 245 may be communicated based on (e.g., in accordance with) the indication of the capability.

[0136] In some examples, the FMCW signal 245 may be communicated (e.g., transmitted or received) as part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure. For instance, the FMCW signal 245 may be transmitted as a reference signal or instead of a reference signal (e.g., SRS or PRS via OFDM) for channel quality estimation, beam management, sensing, or positioning. In some aspects, the FMCW signal 245 may be (or may be utilized as) a reference signal (e.g., SRS or PRS, among other examples).

[0137] Some examples of properties for SRS signaling for positioning are provided in Table (2).Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO41Table (2)Atorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO42

[0138] As can be observed from Table (2), a positioning SRS may introduce significant complexity or may consume significant resources. Some examples of the FMCW may help to reduce complexity or resource consumption.

[0139] Some examples of the techniques described herein may relate to waveform switching between OFDM and FMCW for signal (e.g., reference signal or SRS) communication. OFDM and FMCW may be utilized (e.g., may coexist) in some wireless communications systems. In some approaches, one or more communications between the first wireless device 215 and the second wireless device 220 (e.g., control information 240, DCI or a MAC CE, among other examples) may indicate switching between OFDM and FMCW, may indicate a quantity of component carriers (for OFDM or FMCW switching, for instance), may indicate a gap (e.g., minimum gap) for switching (e.g., between waveforms or between OFDM and FMCW), or may indicate one or more component carriers or one or more BWPs (for OFDM or FMCW switching, for instance). Additionally, or alternatively, one or more communications between the first wireless device 215 and the second wireless device 220 (e.g., control information 240, DCI, or a MAC CE, among other examples) may indicate whether the communication (e.g., control information 240, DCI, MAC CE, switching, reference signaling, resource(s), or FMCW signaling, among other examples) applies to aperiodic, periodic, or semi-persistent signaling. In some approaches, a switching indicator (e.g., a parameter of the control information 240) may be provided (e.g., may be provided without other information or without one or more other parameters described herein) and other information (e.g., one or more of the other parameters or communications described herein) may be communicated via an upper layer (e.g., RLC, MAC, or PDCP layer, among other examples) or via a different lower layer mechanism (e.g., PHY layer mechanism), or may be stored in a data structure (e.g., hard coded or stored in a look up table) for addressing or retrieval based on one or more communications (e.g., based on the control information 240, DCI, or MAC CE, among other examples). In some approaches, a portion or all resources allocated to an FMCW may be reallocated for one or more other uplink or downlink channels based on a priority. For example, one or more cancellation patterns may be provided via an indication (e.g., a SLIV or bit map indication for the time domain, or an RIV or bit map indication for the frequency domain). In some examples, the first wireless device 215 or the second wireless deviceAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO43220 may utilize one or more different power control mechanisms or thresholds for OFDM and FMCW signaling. In some approaches, the first wireless device 215 (e.g., UE) may report a power (e.g., maximum power) for the FMCW waveform. In some aspects, the first wireless device 215 (e.g., UE) may report a bandwidth aggregation (e.g., one or more num erol ogies or aggregation combinations, among other examples) for FMCW (e.g., may report a different bandwidth aggregation for FMCW than for OFDM).

[0140] FIG. 3 shows an example of a waveform switch 300 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The waveform switch 300 may be performed in accordance with one or more of the techniques described herein. For instance, the waveform switch 300 may be performed by the first wireless device 215 or the second wireless device 220 described with reference to FIG. 2. FIG. 3 illustrates a first OFDM component carrier 305-a, a second OFDM component carrier 305-b, a third OFDM component carrier 305-c, and a fourth OFDM component carrier 305-d, which may be examples of the component carriers described herein. An example of an FMCW 310 waveform is also illustrated in FIG. 3. As illustrated in FIG. 3, one or more wireless devices may dynamically switch waveform types between an OFDM waveform (in the OFDM component carriers, for instance) and an FMCW 310 waveform over time. In some approaches, the FMCW 310 waveform may occupy approximately a 400 MHz bandwidth.

[0141] An analog FMCW waveform (e.g., the FMCW 310 waveform) may coexist with an OFDM waveform on an uplink to support one or more use cases (e.g., positioning, sensing, or beam management, among other examples). An OFDM waveform may supports MIMO processing or beamforming (e.g., digital or hybrid beamforming), which may be utilized for data communications over frequency selective channels.

[0142] In some approaches, the FMCW 310 waveform that may be generated directly (e.g., generated in an RF subsystem) may be aligned with OFDM symbol or slot boundaries. In some cases, the FMCW 310 waveform may sweep a wider bandwidth than an OFDM waveform. Sweeping a wider bandwidth may enables an improved tradeoff for performance, complexity, cost, or power efficiency. Due to theAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO44characteristics (e.g., relative capabilities or strengths) of OFDM and FMCW, a wireless device (e.g., UE) may support both waveform types for service diversity, configuration flexibility, or performance enhancement.

[0143] In addition, or alternatively from, semi-persistent time division multiplexing (TDM), dynamic switching of waveform types, antenna ports, or radio resources may be supported for increased flexibility or resource utilization efficiency. In some cases, a link budget may depend on the waveform type, and a network (e.g., network entity or base station, for instance) may have information regarding a quantity of power that a wireless device (e.g., UE) may deliver when a waveform type switches (e.g., SRS based on an OFDM waveform versus SRS based on an FMCW waveform), it may be helpful for the wireless device to indicate a PHR for an alternate waveform (e.g., FMCW waveform) to facilitate energy-based scheduling or coverage enhancement.

[0144] Some examples of the techniques described herein provide procedures or signaling to support waveform switching for an FMCW-based signal (in a context of SRS signaling, for instance). Some examples of the techniques may be performed with one or more other waveforms instead of OFDM waveforms. For instance, an OFDMbased SRS and an FMCW-based SRS may have different shapes or utilize different resources (e.g., to avoid a distortion of a digital FMCW as described herein).

[0145] FIG. 4 shows an example of a timeline 400 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The wireless communications system 100 or the wireless communications system 200 may operate in accordance with one or more aspects of the timeline 400 in some approaches. For example, the first wireless device 215 or the second wireless device 220 described with reference to FIG. 2 may operate in accordance with the timeline 400.

[0146] In the example of FIG. 4, a first wireless device (e.g., the first wireless device 215 or a UE) may receive an RRC configuration for an SRS based on OFDM at time tO 405. For instance, the RRC configuration may indicate a configuration (e.g., SRS resources) for SRS signaling via an OFDM waveform type.

[0147] At a time tl 410, the first wireless device (e.g., the first wireless device 215 or a UE) may receive a waveform switching indication in DCI or a MAC CE. After tl 410, the first wireless device may switch waveform types (e.g., may activate circuitry,Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO45such as an RF subsystem or an FMCW generator, may tune one or more power amplifiers, filters, or antennas, among other examples) during or after a period 420 or gap (e.g., T > Kgap). For instance, the first wireless device may perform waveform switching one or more component carriers at time t2415. After t2415, the first wireless device may output (e.g., transmit) an SRS based on an FMCW waveform.

[0148] FIG. 5 shows an example of a bitmap-based cancellation pattern 500 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The wireless communications system 100 or the wireless communications system 200 may operate in accordance with one or more aspects of the bitmap-based cancellation pattern 500 in some approaches. For example, the first wireless device 215 or the second wireless device 220 described with reference to FIG. 2 may operate in accordance with the bitmap-based cancellation pattern 500.

[0149] The bitmap-based cancellation pattern 500 may be utilized for an FMCW waveform. For example, the vertical dimension in FIG. 5 may represent a quantity of time blocks (e.g., 4) configured for FMCW. For instance, the time blocks may be in units of symbols, sub-slots, or slots, among other examples. The horizontal dimension in FIG. 5 may represent a quantity of frequency blocks (e.g., 3) configured for FMCW. For instance, the frequency blocks may be in units of resource block groups, subbands, or component carriers, among other examples. In the example of FIG. 5, a first portion (e.g., column) of a bitmap corresponds to frequency block A 505-a, a second portion (e.g., column) of the bitmap corresponds to frequency block B 505-b, and a third portion (e.g., column) of the bitmap corresponds to frequency block C 505-c, where frequency block A 505-a, frequency block B 505-b, and frequency block C 505-c differ from each other. In accordance with some of the techniques described herein, frequency block A 505-a, frequency block B 505-b, and frequency block C 505-c may be allocated for FMCW, but actual transmission or cancelation may be subject to an indication (e.g., a dynamic indication) of the bitmap received from the network.

[0150] In the example of FIG. 5, the “1” values in the bitmap may indicate a time or frequency resource block that is canceled for FMCW (e.g., for FMCW-based SRS, or where FMCW transmission is not allowed). The “0” values in the bitmap may indicate a time or frequency resource block that is preserved for FMCW (e.g., for FMCW-based SRS, or where FMCW transmission is allowed).Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO46

[0151] FIG. 6 shows an example of a process flow 600 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. A wireless communication system may include a UE 115-a and a network entity 105-a. The UE 115-a may be an example of the UEs 115 or the first wireless device 215, and the network entity 105-a may be an example of the network entities 105 or the second wireless device 220, as described herein.

[0152] In the following description of the process flow 600, the communications between the network entity 105-a and the UE 115-a may be transmitted in the example order shown or in a different order than the example order shown, or the operations performed by the network entity 105-a and the UE 115-a may be performed in different orders or at different times. Some operations may be omitted from the process flow 600, or other operations may be added to the process flow 600. Although some operations or signaling may be shown to occur at different times for discussion purposes, these operations may actually occur at the same time, in overlapping time periods, or at separate times in some examples.

[0153] At 605, the UE 115-a may output (e.g., transmit), or the network entity 105-a may obtain (e.g., receive), capability information. For example, the network entity 105-a may obtain the capability information indicating a capability of the UE 115-a to perform FMCW signaling as described with reference to FIG. 2.

[0154] At 610, the network entity 105-a may output (e.g., transmit), or the UE 115-a may obtain (e.g., receive) configuration information. For example, the network entity 105-a may transmit the configuration information via RRC or other signaling indicating a configuration of OFDM-based SRS as described with reference to FIG. 4.

[0155] At 615, the network entity 105-a may output (e.g., transmit), or the UE 115-a may obtain (e.g., receive), an indication of a switch. For example, the network entity 105-a may transmit the indication of the switch to an FMCW waveform (e.g., FMCW-based SRS or other reference signal) to the UE 115-a as described with reference to FIG. 2.

[0156] At 620, the UE 115-a may output (e.g., transmit), or the network entity 105-a may obtain (e.g., receive) an FMCW signal. For example, the UE 115-a may transmit an FMCW signal (e.g., FMCW-based SRS or other reference signal for channel estimation,Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO47beamform management, positioning, sensing, or other procedure) as described with reference to FIG. 2.

[0157] FIG. 7 shows a block diagram 700 of a device 705 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The device 705 may be an example of aspects of a first wireless device as described herein. The device 705 may include a receiver 710, a transmitter 715, and a communications manager 720. The device 705, or one or more components of the device 705 (e.g., the receiver 710, the transmitter 715, the communications manager 720), may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses).

[0158] The receiver 710 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to communications for FMCW signals). Information may be passed on to other components of the device 705. The receiver 710 may utilize a single antenna or a set of multiple antennas.

[0159] The transmitter 715 may provide a means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to communications for FMCW signals). In some examples, the transmitter 715 may be co-located with a receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna or a set of multiple antennas.

[0160] The communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be examples of means for performing various aspects of communications for FMCW signals as described herein. For example, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be capable of performing one or more of the functions described herein.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO48

[0161] In some examples, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include at least one of a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory).

[0162] Additionally, or alternatively, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code). If implemented in code executed by at least one processor, the functions of the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure).

[0163] In some examples, the communications manager 720 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 710, the transmitter 715, or both. For example, the communications manager 720 may receive information from the receiver 710, send information to the transmitter 715, or be integrated in combination with the receiver 710, the transmitter 715, or both to obtain information, output information, or perform various other operations as described herein.

[0164] For example, the communications manager 720 is capable of, configured to, or operable to support a means for communicating, with a second wireless device, control information associated with a FMCW signal between the first wireless device Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO49and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The communications manager 720 is capable of, configured to, or operable to support a means for transmitting, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0165] By including or configuring the communications manager 720 in accordance with examples as described herein, the device 705 (e.g., at least one processor controlling or otherwise coupled with the receiver 710, the transmitter 715, the communications manager 720, or a combination thereof) may support techniques for reduced processing, reduced power consumption, or more efficient utilization of communication resources.

[0166] FIG. 8 shows a block diagram 800 of a device 805 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The device 805 may be an example of aspects of a device 705 or a first wireless device as described herein. The device 805 may include a receiver 810, a transmitter 815, and a communications manager 820. The device 805, or one or more components of the device 805 (e.g., the receiver 810, the transmitter 815, the communications manager 820), may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses).

[0167] The receiver 810 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to communications for FMCW signals). Information may be passed on to other components of the device 805. The receiver 810 may utilize a single antenna or a set of multiple antennas.

[0168] The transmitter 815 may provide a means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to communications for FMCW signals). In some examples,Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO50the transmitter 815 may be co-located with a receiver 810 in a transceiver module. The transmitter 815 may utilize a single antenna or a set of multiple antennas.

[0169] The device 805, or various components thereof, may be an example of means for performing various aspects of communications for FMCW signals as described herein. For example, the communications manager 820 may include a control component 825 an FMCW component 830, or any combination thereof. The communications manager 820 may be an example of aspects of a communications manager 720 as described herein. In some examples, the communications manager 820, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 810, the transmitter 815, or both. For example, the communications manager 820 may receive information from the receiver 810, send information to the transmitter 815, or be integrated in combination with the receiver 810, the transmitter 815, or both to obtain information, output information, or perform various other operations as described herein.

[0170] The control component 825 is capable of, configured to, or operable to support a means for communicating, with a second wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The FMCW component 830 is capable of, configured to, or operable to support a means for transmitting, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0171] FIG. 9 shows a block diagram 900 of a communications manager 920 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The communications manager 920 may be an example of aspects of a communications manager 720, a communications manager 820, or both, as described herein. The communications manager 920, or various components thereof, may be an example of means for performing various aspects of communications for FMCW signals as described herein. For example, the communications manager 920 may include a control component 925, an FMCW component 930, a data component 935, a cancellation component 940, a power indication component 945, a capabilityAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO51component 950, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories), may communicate, directly or indirectly, with one another (e.g., via one or more buses).

[0172] The control component 925 is capable of, configured to, or operable to support a means for communicating, with a second wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The FMCW component 930 is capable of, configured to, or operable to support a means for transmitting, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0173] In some examples, the switch occurs after a period from communication of the control information.

[0174] In some examples, the control information includes DCI or a MAC CE to indicate the switch from the OFDM waveform to the FMCW waveform.

[0175] In some examples, the control information indicates that the first wireless device is to transmit FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling.

[0176] In some examples, the control information that indicates the switch is multiplexed with second control information for adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof.

[0177] In some examples, the data component 935 is capable of, configured to, or operable to support a means for transmitting measurement data, a report, or assistance information to the second wireless device, where the switch occurs in response to the measurement data, the report, or the assistance information.

[0178] In some examples, the control information is communicated via a first component carrier or a first bandwidth part and the FMCW signal is transmitted via a second component carrier or a second bandwidth part that is different from the first component carrier or the first bandwidth part.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO52

[0179] In some examples, the cancellation component 940 is capable of, configured to, or operable to support a means for receiving, from the second wireless device, an indication of a partial or complete cancellation of FMCW signaling.

[0180] In some examples, the indication includes a SLIV, a RIV, or a bitmap indicating one or more resources for which the FMCW signaling is canceled.

[0181] In some examples, the power indication component 945 is capable of, configured to, or operable to support a means for transmitting an indication of a power for transmission of the FMCW signal to the second wireless device.

[0182] In some examples, the indication of the power is transmitted via a MAC CE for a PHR.

[0183] In some examples, the FMCW signal is transmitted via multiple bands with respective power amplifiers.

[0184] In some examples, the FMCW signal is transmitted via aggregated bandwidths that are configured separately from an SRS.

[0185] In some examples, the capability component 950 is capable of, configured to, or operable to support a means for transmitting, to the second wireless device, an indication of a capability of the first wireless device to transmit the FMCW signal, where the control information associated with the FMCW signal is communicated based on the indication of the capability.

[0186] In some examples, the FMCW signal is transmitted as part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure.

[0187] FIG. 10 shows a diagram of a system 1000 including a device 1005 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The device 1005 may be an example of or include components of a device 705, a device 805, or a first wireless device as described herein. The device 1005 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 1020, an VO controller, such as an I / O controller 1010, a transceiver 1015, one or more antennas 1025, at least one memory 1030, code 1035, andAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO53at least one processor 1040. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1045).

[0188] The I / O controller 1010 may manage input and output signals for the device 1005. The I / O controller 1010 may also manage peripherals not integrated into the device 1005. In some cases, the I / O controller 1010 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 1010 may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally, or alternatively, the I / O controller 1010 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I / O controller 1010 may be implemented as part of one or more processors, such as the at least one processor 1040. In some cases, a user may interact with the device 1005 via the I / O controller 1010 or via hardware components controlled by the I / O controller 1010.

[0189] In some cases, the device 1005 may include a single antenna. However, in some other cases, the device 1005 may have more than one antenna, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1015 may communicate bi-directionally via the one or more antennas 1025 using wired or wireless links as described herein. For example, the transceiver 1015 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1015 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 1025 for transmission, and to demodulate packets received from the one or more antennas 1025. The transceiver 1015, or the transceiver 1015 and one or more antennas 1025, may be an example of a transmitter 715, a transmitter 815, a receiver 710, a receiver 810, or any combination thereof or component thereof, as described herein.

[0190] The at least one memory 1030 may include RAM and ROM. The at least one memory 1030 may store computer-readable, computer-executable, or processorexecutable code, such as the code 1035. The code 1035 may include instructions that, when executed by the at least one processor 1040, cause the device 1005 to perform various functions described herein. The code 1035 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. InAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO54some cases, the code 1035 may not be directly executable by the at least one processor 1040 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1030 may include, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.

[0191] The at least one processor 1040 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs), one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs)), one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof). In some cases, the at least one processor 1040 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the at least one processor 1040. The at least one processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., the at least one memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting communications for FMCW signals). For example, the device 1005 or a component of the device 1005 may include at least one processor 1040 and at least one memory 1030 coupled with or to the at least one processor 1040, the at least one processor 1040 and the at least one memory 1030 configured to perform various functions described herein.

[0192] In some examples, the at least one processor 1040 may include multiple processors and the at least one memory 1030 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions described herein. In some examples, the at least one processor 1040 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 1040) and memory circuitry (which may include the at least one memory 1030)), or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processingAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO55system may be configured to perform one or more of the functions described herein. For example, the at least one processor 1040 or a processing system including the at least one processor 1040 may be configured to, configurable to, or operable to cause the device 1005 to perform one or more of the functions described herein. Further, as described herein, being “configured to,” being “configurable to,” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code 1035 (e.g., processor-executable code) stored in the at least one memory 1030 or otherwise, to perform one or more of the functions described herein.

[0193] For example, the communications manager 1020 is capable of, configured to, or operable to support a means for communicating, with a second wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The communications manager 1020 is capable of, configured to, or operable to support a means for transmitting, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0194] By including or configuring the communications manager 1020 in accordance with examples as described herein, the device 1005 may support techniques for improved communication reliability, reduced latency, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, or improved utilization of processing capability.

[0195] In some examples, the communications manager 1020 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 1015, the one or more antennas 1025, or any combination thereof. Although the communications manager 1020 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1020 may be supported by or performed by the at least one processor 1040, the at least one memory 1030, the code 1035, or any combination thereof. For example, the code 1035 may include instructions executable by the at least one processor 1040 to cause the device 1005 to perform various aspects of communications for FMCW signals as described herein, or the at least one processorAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO561040 and the at least one memory 1030 may be otherwise configured to, individually or collectively, perform or support such operations.

[0196] FIG. 11 shows a block diagram 1100 of a device 1105 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The device 1105 may be an example of aspects of a second wireless device as described herein. The device 1105 may include a receiver 1110, a transmitter 1115, and a communications manager 1120. The device 1105, or one or more components of the device 1105 (e.g., the receiver 1110, the transmitter 1115, the communications manager 1120), may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses).

[0197] The receiver 1110 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). Information may be passed on to other components of the device 1105. In some examples, the receiver 1110 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1110 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.

[0198] The transmitter 1115 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1105. For example, the transmitter 1115 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). In some examples, the transmitter 1115 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1115 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO57or any combination thereof. In some examples, the transmitter 1115 and the receiver 1110 may be co-located in a transceiver, which may include or be coupled with a modem.

[0199] The communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be examples of means for performing various aspects of communications for FMCW signals as described herein. For example, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be capable of performing one or more of the functions described herein.

[0200] In some examples, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include at least one of a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory).

[0201] Additionally, or alternatively, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code). If implemented in code executed by at least one processor, the functions of the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure).Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO58

[0202] In some examples, the communications manager 1120 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 1110, the transmitter 1115, or both. For example, the communications manager 1120 may receive information from the receiver 1110, send information to the transmitter 1115, or be integrated in combination with the receiver 1110, the transmitter 1115, or both to obtain information, output information, or perform various other operations as described herein.

[0203] For example, the communications manager 1120 is capable of, configured to, or operable to support a means for communicating, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The communications manager 1120 is capable of, configured to, or operable to support a means for receiving, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0204] By including or configuring the communications manager 1120 in accordance with examples as described herein, the device 1105 (e.g., at least one processor controlling or otherwise coupled with the receiver 1110, the transmitter 1115, the communications manager 1120, or a combination thereof) may support techniques for reduced processing, reduced power consumption, or more efficient utilization of communication resources.

[0205] FIG. 12 shows a block diagram 1200 of a device 1205 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The device 1205 may be an example of aspects of a device 1105 or a second wireless device as described herein. The device 1205 may include a receiver 1210, a transmitter 1215, and a communications manager 1220. The device 1205, or one or more components of the device 1205 (e.g., the receiver 1210, the transmitter 1215, the communications manager 1220), may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses).Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO59

[0206] The receiver 1210 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). Information may be passed on to other components of the device 1205. In some examples, the receiver 1210 may support obtaining information by receiving signals via one or more antennas.Additionally, or alternatively, the receiver 1210 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.

[0207] The transmitter 1215 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1205. For example, the transmitter 1215 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack). In some examples, the transmitter 1215 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1215 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1215 and the receiver 1210 may be co-located in a transceiver, which may include or be coupled with a modem.

[0208] The device 1205, or various components thereof, may be an example of means for performing various aspects of communications for FMCW signals as described herein. For example, the communications manager 1220 may include a control manager 1225 an FMCW manager 1230, or any combination thereof. The communications manager 1220 may be an example of aspects of a communications manager 1120 as described herein. In some examples, the communications manager 1220, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 1210, the transmitter 1215, or both. For example, theAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO60communications manager 1220 may receive information from the receiver 1210, send information to the transmitter 1215, or be integrated in combination with the receiver 1210, the transmitter 1215, or both to obtain information, output information, or perform various other operations as described herein.

[0209] The control manager 1225 is capable of, configured to, or operable to support a means for communicating, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The FMCW manager 1230 is capable of, configured to, or operable to support a means for receiving, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0210] FIG. 13 shows a block diagram 1300 of a communications manager 1320 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The communications manager 1320 may be an example of aspects of a communications manager 1120, a communications manager 1220, or both, as described herein. The communications manager 1320, or various components thereof, may be an example of means for performing various aspects of communications for FMCW signals as described herein. For example, the communications manager 1320 may include a control manager 1325, an FMCW manager 1330, a data manager 1335, a cancellation manager 1340, a power manager 1345, a capability manager 1350, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories), may communicate, directly or indirectly, with one another (e.g., via one or more buses).

[0211] The control manager 1325 is capable of, configured to, or operable to support a means for communicating, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The FMCW manager 1330 is capable of, configured to, or operable to support a means for receiving,Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO61from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0212] In some examples, the switch occurs after a period from communication of the control information.

[0213] In some examples, the control information includes DCI or a MAC CE to indicate the switch from the OFDM waveform to the FMCW waveform.

[0214] In some examples, the control information indicates that the first wireless device is to transmit FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling.

[0215] In some examples, the control information that indicates the switch is multiplexed with second control information for adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof.

[0216] In some examples, the data manager 1335 is capable of, configured to, or operable to support a means for receiving measurement data, a report, or assistance information from the first wireless device, where the switch occurs in response to the measurement data, the report, or the assistance information.

[0217] In some examples, the control information is communicated via a first component carrier or a first bandwidth part and the FMCW signal is transmitted via a second component carrier or a second bandwidth part that is different from the first component carrier or the first bandwidth part.

[0218] In some examples, the cancellation manager 1340 is capable of, configured to, or operable to support a means for transmitting, to the first wireless device, an indication of a partial or complete cancellation of FMCW signaling.

[0219] In some examples, the indication includes a SLIV, a RIV, or a bitmap indicating one or more resources for which the FMCW signaling is canceled.

[0220] In some examples, the power manager 1345 is capable of, configured to, or operable to support a means for receiving an indication of a power for transmission of the FMCW signal from the first wireless device.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO62

[0221] In some examples, the indication of the power is received via a MAC CE for a PHR.

[0222] In some examples, the FMCW signal is received via multiple bands.

[0223] In some examples, the FMCW signal is received via aggregated bandwidths that are configured separately from an SRS.

[0224] In some examples, the capability manager 1350 is capable of, configured to, or operable to support a means for receiving, from the first wireless device, an indication of a capability of the first wireless device to transmit the FMCW signal, where the control information associated with the FMCW signal is communicated based on the indication of the capability.

[0225] In some examples, the FMCW signal is received as part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure.

[0226] FIG. 14 shows a diagram of a system 1400 including a device 1405 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The device 1405 may be an example of or include components of a device 1105, a device 1205, or a second wireless device as described herein. The device 1405 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 1420, a transceiver 1410, one or more antennas 1415, at least one memory 1425, code 1430, and at least one processor 1435. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1440).

[0227] The transceiver 1410 may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver 1410 may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, the transceiver 1410 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1405 mayAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO63include one or more antennas 1415, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently). The transceiver 1410 may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas 1415, by a wired transmitter), to receive modulated signals (e.g., from one or more antennas 1415, from a wired receiver), and to demodulate signals. In some implementations, the transceiver 1410 may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas 1415 that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas 1415 that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1410 may include or be configured for coupling with one or more processors or one or more memory components that are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other outputting, or any combination thereof. In some implementations, the transceiver 1410, or the transceiver 1410 and the one or more antennas 1415, or the transceiver 1410 and the one or more antennas 1415 and one or more processors or one or more memory components (e.g., the at least one processor 1435, the at least one memory 1425, or both), may be included in a chip or chip assembly that is installed in the device 1405. In some examples, the transceiver 1410 may be operable to support communications via one or more communications links (e.g., communication link(s) 125, backhaul communication link(s) 120, a midhaul communication link 162, a fronthaul communication link 168).

[0228] The at least one memory 1425 may include RAM, ROM, or any combination thereof. The at least one memory 1425 may store computer-readable, computerexecutable, or processor-executable code, such as the code 1430. The code 1430 may include instructions that, when executed by one or more of the at least one processor 1435, cause the device 1405 to perform various functions described herein. The code 1430 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1430 may not be directly executable by a processor of the at least one processor 1435 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1425 may include, among other things, a BIOS whichAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO64may control basic hardware or software operation such as the interaction with peripheral components or devices. In some examples, the at least one processor 1435 may include multiple processors and the at least one memory 1425 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories which may, individually or collectively, be configured to perform various functions herein (for example, as part of a processing system).

[0229] The at least one processor 1435 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs), one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs)), one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof). In some cases, the at least one processor 1435 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into one or more of the at least one processor 1435. The at least one processor 1435 may be configured to execute computer-readable instructions stored in a memory (e.g., one or more of the at least one memory 1425) to cause the device 1405 to perform various functions (e.g., functions or tasks supporting communications for FMCW signals). For example, the device 1405 or a component of the device 1405 may include at least one processor 1435 and at least one memory 1425 coupled with one or more of the at least one processor 1435, the at least one processor 1435 and the at least one memory 1425 configured to perform various functions described herein. The at least one processor 1435 may be an example of a cloud-computing platform (e.g., one or more physical nodes and supporting software such as operating systems, virtual machines, or container instances) that may host the functions (e.g., by executing code 1430) to perform the functions of the device 1405. The at least one processor 1435 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1405 (such as within one or more of the at least one memory 1425).

[0230] In some examples, the at least one processor 1435 may include multiple processors and the at least one memory 1425 may include multiple memories. One orAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO65more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein. In some examples, the at least one processor 1435 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 1435) and memory circuitry (which may include the at least one memory 1425)), or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 1435 or a processing system including the at least one processor 1435 may be configured to, configurable to, or operable to cause the device 1405 to perform one or more of the functions described herein. Further, as described herein, being “configured to,” being “configurable to,” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code stored in the at least one memory 1425 or otherwise, to perform one or more of the functions described herein.

[0231] In some examples, a bus 1440 may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus 1440 may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within a component of the device 1405, or between different components of the device 1405 that may be co-located or located in different locations (e.g., where the device 1405 may refer to a system in which one or more of the communications manager 1420, the transceiver 1410, the at least one memory 1425, the code 1430, and the at least one processor 1435 may be located in one of the different components or divided between different components).

[0232] In some examples, the communications manager 1420 may manage aspects of communications with a core network 130 (e.g., via one or more wired or wireless backhaul links). For example, the communications manager 1420 may manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, the communications manager 1420 may manage communications with one or more other network entities 105, and may include a controller or scheduler forAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO66controlling communications with UEs 115 (e.g., in cooperation with the one or more other network devices). In some examples, the communications manager 1420 may support an X2 interface within an LTE / LTE-A wireless communications network technology to provide communication between network entities 105.

[0233] For example, the communications manager 1420 is capable of, configured to, or operable to support a means for communicating, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The communications manager 1420 is capable of, configured to, or operable to support a means for receiving, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal.

[0234] By including or configuring the communications manager 1420 in accordance with examples as described herein, the device 1405 may support techniques for improved communication reliability, reduced latency, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, or improved utilization of processing capability.

[0235] In some examples, the communications manager 1420 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver 1410, the one or more antennas 1415 (e.g., where applicable), or any combination thereof. Although the communications manager 1420 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1420 may be supported by or performed by the transceiver 1410, one or more of the at least one processor 1435, one or more of the at least one memory 1425, the code 1430, or any combination thereof (for example, by a processing system including at least a portion of the at least one processor 1435, the at least one memory 1425, the code 1430, or any combination thereof). For example, the code 1430 may include instructions executable by one or more of the at least one processor 1435 to cause the device 1405 to perform various aspects of communications for FMCW signals as described herein, or the at least one processor 1435 and the at least one memory 1425Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO67may be otherwise configured to, individually or collectively, perform or support such operations.

[0236] FIG. 15 shows a flowchart illustrating a method 1500 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The operations of the method 1500 may be implemented by a first wireless device or its components as described herein. For example, the operations of the method 1500 may be performed by a first wireless device as described with reference to FIGs. 1 through 10. In some examples, a first wireless device may execute a set of instructions to control the functional elements of the first wireless device to perform the described functions. Additionally, or alternatively, the first wireless device may perform aspects of the described functions using special-purpose hardware.

[0237] At 1505, the method may include communicating, with a second wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The operations of 1505 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by a control component 925 as described with reference to FIG. 9.

[0238] At 1510, the method may include transmitting, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal. The operations of 1510 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by an FMCW component 930 as described with reference to FIG. 9.

[0239] FIG. 16 shows a flowchart illustrating a method 1600 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The operations of the method 1600 may be implemented by a first wireless device or its components as described herein. For example, the operations of the method 1600 may be performed by a first wireless device as described with reference to FIGs. 1 through 10. In some examples, a first wireless device may execute a set of instructions to control the functional elements of the first wireless device toAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO68perform the described functions. Additionally, or alternatively, the first wireless device may perform aspects of the described functions using special-purpose hardware.

[0240] At 1605, the method may include transmitting, to a second wireless device, an indication of a capability of the first wireless device to transmit an FMCW signal. The operations of 1605 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by a capability component 950 as described with reference to FIG. 9.

[0241] At 1610, the method may include communicating, with the second wireless device, control information associated with the FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers, and where the control information associated with the FMCW signal is communicated based on the indication of the capability. The operations of 1610 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by a control component 925 as described with reference to FIG. 9.

[0242] At 1615, the method may include transmitting, to the second wireless device, the FMCW signal based on the control information associated with the FMCW signal. The operations of 1615 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by an FMCW component 930 as described with reference to FIG. 9.

[0243] FIG. 17 shows a flowchart illustrating a method 1700 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The operations of the method 1700 may be implemented by a second wireless device or its components as described herein. For example, the operations of the method 1700 may be performed by a second wireless device as described with reference to FIGs. 1 through 6 and 11 through 14. In some examples, a second wireless device may execute a set of instructions to control the functional elements of the second wireless device to perform the described functions. Additionally, or alternatively, the second wireless device may perform aspects of the described functions using specialpurpose hardware.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO69

[0244] At 1705, the method may include communicating, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers. The operations of 1705 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by a control manager 1325 as described with reference to FIG. 13.

[0245] At 1710, the method may include receiving, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal. The operations of 1710 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by an FMCW manager 1330 as described with reference to FIG. 13.

[0246] FIG. 18 shows a flowchart illustrating a method 1800 that supports communications for FMCW signals in accordance with one or more aspects of the present disclosure. The operations of the method 1800 may be implemented by a second wireless device or its components as described herein. For example, the operations of the method 1800 may be performed by a second wireless device as described with reference to FIGs. 1 through 6 and 11 through 14. In some examples, a second wireless device may execute a set of instructions to control the functional elements of the second wireless device to perform the described functions. Additionally, or alternatively, the second wireless device may perform aspects of the described functions using specialpurpose hardware.

[0247] At 1805, the method may include receiving, from a first wireless device, an indication of a capability of the first wireless device to transmit an FMCW signal. The operations of 1805 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1805 may be performed by a capability manager 1350 as described with reference to FIG. 13.

[0248] At 1810, the method may include communicating, with the first wireless device, control information associated with the FMCW signal between the first wireless device and the second wireless device, where the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers,Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO70and where the control information associated with the FMCW signal is communicated based on the indication of the capability. The operations of 1810 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1810 may be performed by a control manager 1325 as described with reference to FIG. 13.

[0249] At 1815, the method may include receiving, from the first wireless device, the FMCW signal based on the control information associated with the FMCW signal. The operations of 1815 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1815 may be performed by an FMCW manager 1330 as described with reference to FIG. 13.

[0250] The following provides an overview of aspects of the present disclosure:

[0251] Aspect 1 : A method for wireless communications at a first wireless device, comprising: communicating, with a second wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, wherein the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers; and transmitting, to the second wireless device, the FMCW signal based at least in part on the control information associated with the FMCW signal.

[0252] Aspect 2: The method of aspect 1, wherein the switch occurs after a period from communication of the control information.

[0253] Aspect 3 : The method of any of aspects 1 through 2, wherein the control information comprises DCI or a MAC CE to indicate the switch from the OFDM waveform to the FMCW waveform.

[0254] Aspect 4: The method of any of aspects 1 through 3, wherein the control information indicates that the first wireless device is to transmit FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling.

[0255] Aspect 5 : The method of any of aspects 1 through 4, wherein the control information that indicates the switch is multiplexed with second control information forAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO71adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof.

[0256] Aspect 6: The method of any of aspects 1 through 5, further comprising: transmitting measurement data, a report, or assistance information to the second wireless device, wherein the switch occurs in response to the measurement data, the report, or the assistance information.

[0257] Aspect 7 : The method of any of aspects 1 through 6, wherein the control information is communicated via a first component carrier or a first bandwidth part and the FMCW signal is transmitted via a second component carrier or a second bandwidth part that is different from the first component carrier or the first bandwidth part.

[0258] Aspect 8: The method of any of aspects 1 through 7, further comprising: receiving, from the second wireless device, an indication of a partial or complete cancellation of FMCW signaling.

[0259] Aspect 9: The method of aspect 8, wherein the indication comprises a SLIV, a RIV, or a bitmap indicating one or more resources for which the FMCW signaling is canceled.

[0260] Aspect 10: The method of any of aspects 1 through 9, further comprising: transmitting an indication of a power for transmission of the FMCW signal to the second wireless device.

[0261] Aspect 11 : The method of aspect 10, wherein the indication of the power is transmitted via a MAC CE for a PHR.

[0262] Aspect 12: The method of any of aspects 1 through 11, wherein the FMCW signal is transmitted via multiple bands with respective power amplifiers.

[0263] Aspect 13: The method of any of aspects 1 through 12, wherein the FMCW signal is transmitted via aggregated bandwidths that are configured separately from an SRS.

[0264] Aspect 14: The method of any of aspects 1 through 13, further comprising: transmitting, to the second wireless device, an indication of a capability of the first wireless device to transmit the FMCW signal, and wherein the control informationAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO72associated with the FMCW signal is communicated based at least in part on the indication of the capability.

[0265] Aspect 15: The method of any of aspects 1 through 14, wherein the FMCW signal is transmitted as part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure.

[0266] Aspect 16: A method for wireless communications at a second wireless device, comprising: communicating, with a first wireless device, control information associated with a FMCW signal between the first wireless device and the second wireless device, wherein the control information indicates a switch from an OFDM waveform to an FMCW waveform for one or more component carriers; and receiving, from the first wireless device, the FMCW signal based at least in part on the control information associated with the FMCW signal.

[0267] Aspect 17: The method of aspect 16, wherein the switch occurs after a period from communication of the control information.

[0268] Aspect 18: The method of any of aspects 16 through 17, wherein the control information comprises DCI or a MAC CE to indicate the switch from the OFDM waveform to the FMCW waveform.

[0269] Aspect 19: The method of any of aspects 16 through 18, wherein the control information indicates that the first wireless device is to transmit FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling.

[0270] Aspect 20: The method of any of aspects 16 through 19, wherein the control information that indicates the switch is multiplexed with second control information for adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof.

[0271] Aspect 21 : The method of any of aspects 16 through 20, further comprising: receiving measurement data, a report, or assistance information from the first wireless device, wherein the switch occurs in response to the measurement data, the report, or the assistance information.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO73

[0272] Aspect 22: The method of any of aspects 16 through 21, wherein the control information is communicated via a first component carrier or a first bandwidth part and the FMCW signal is transmitted via a second component carrier or a second bandwidth part that is different from the first component carrier or the first bandwidth part.

[0273] Aspect 23: The method of any of aspects 16 through 22, further comprising: transmitting, to the first wireless device, an indication of a partial or complete cancellation of FMCW signaling.

[0274] Aspect 24: The method of aspect 23, wherein the indication comprises a SLIV, a RIV, or a bitmap indicating one or more resources for which the FMCW signaling is canceled.

[0275] Aspect 25: The method of any of aspects 16 through 24, further comprising: receiving an indication of a power for transmission of the FMCW signal from the first wireless device.

[0276] Aspect 26: The method of aspect 25, wherein the indication of the power is received via a MAC CE for a PHR.

[0277] Aspect 27: The method of any of aspects 16 through 26, wherein the FMCW signal is received via multiple bands.

[0278] Aspect 28: The method of any of aspects 16 through 27, wherein the FMCW signal is received via aggregated bandwidths that are configured separately from an SRS.

[0279] Aspect 29: The method of any of aspects 16 through 28, further comprising: receiving, from the first wireless device, an indication of a capability of the first wireless device to transmit the FMCW signal, and wherein the control information associated with the FMCW signal is communicated based at least in part on the indication of the capability.

[0280] Aspect 30: The method of any of aspects 16 through 29, wherein the FMCW signal is received as part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO74

[0281] Aspect 31 : A first wireless device comprising one or more transceivers, one or more memory, and one or more processors electronically coupled to the one or more memory and the one or more transceivers, the one or more processors configured to perform a method of any of aspects 1 through 15.

[0282] Aspect 32: A first wireless device comprising at least one means for performing a method of any of aspects 1 through 15.

[0283] Aspect 33 : A non-transitory computer-readable medium storing code the code comprising instructions executable by one or more processors to perform a method of any of aspects 1 through 15.

[0284] Aspect 34: A second wireless device comprising one or more transceivers, one or more memory, and one or more processors electronically coupled to the one or more memory and the one or more transceivers, the one or more processors configured to perform a method of any of aspects 16 through 30.

[0285] Aspect 35: A second wireless device comprising at least one means for performing a method of any of aspects 16 through 30.

[0286] Aspect 36: A non-transitory computer-readable medium storing code the code comprising instructions executable by one or more processors to perform a method of any of aspects 16 through 30.

[0287] It should be noted that the methods described herein describe possible implementations. The operations and the steps may be rearranged or otherwise modified and other implementations are possible. Further, aspects from two or more of the methods may be combined.

[0288] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO75

[0289] Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0290] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, a DSP, an ASIC, a CPU, a graphics processing unit (GPU), a neural processing unit (NPU), an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor but, in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration). Any functions or operations described herein as being capable of being performed by a processor may be performed by multiple processors that, individually or collectively, are capable of performing the described functions or operations.

[0291] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as or transmitted using one or more instructions or code of a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.

[0292] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of aAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO76computer program from one location to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc. Disks may reproduce data magnetically, and discs may reproduce data optically using lasers.Combinations of the above are also included within the scope of computer-readable media. Any functions or operations described herein as being capable of being performed by a memory may be performed by multiple memories that, individually or collectively, are capable of performing the described functions or operations.

[0293] As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of’ or “one or more of’) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on.”

[0294] As used herein, including in the claims, the article “a” before a noun is open-ended and understood to refer to “at least one” of those nouns or “one or more” of thoseAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO77nouns. Thus, the terms “a,” “at least one,” “one or more,” and “at least one of one or more” may be interchangeable. For example, if a claim recites “a component” that performs one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “a component” having characteristics or performing functions may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent reference to a component introduced with the article “a” using the terms “the” or “said” may refer to any or all of the one or more components. For example, a component introduced with the article “a” may be understood to mean “one or more components,” and referring to “the component” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components.” Similarly, subsequent reference to a component introduced as “one or more components” using the terms “the” or “said” may refer to any or all of the one or more components. For example, referring to “the one or more components” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components.”

[0295] The term “determine” or “determining” encompasses a variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database, or another data structure), ascertaining, and the like. Also, “determining” can include receiving (e.g., receiving information), accessing (e.g., accessing data stored in memory), and the like. Also, “determining” can include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.

[0296] In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label or other subsequent reference label.

[0297] The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that may be Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO78implemented or that are within the scope of the claims. The term “example” used herein means “serving as an example, instance, or illustration” and not “preferred” or “advantageous over other examples.” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some figures, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

[0298] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.Attorney Docket No. PY2659GR.WO (114958.TBD)

Claims

Qualcomm Ref. No. 2407012WO79CLAIMSWhat is claimed is:

1. A first wireless device, comprising:one or more transceivers;one or more memory; andone or more processors electronically coupled to the one or more memory and the one or more transceivers, the one or more processors configured to:communicate, with a second wireless device, control information associated with a frequency modulated continuous wave (FMCW) signal between the first wireless device and the second wireless device, wherein the control information indicates a switch from an orthogonal frequency-division multiplexing (OFDM) waveform to an FMCW waveform for one or more component carriers; andtransmit, to the second wireless device, the FMCW signal based at least in part on the control information associated with the FMCW signal.

2. The first wireless device of claim 1, wherein the switch occurs after a period from communication of the control information.

3. The first wireless device of claim 1, wherein the control information comprises downlink control information (DCI) or a medium access control control element (MAC CE) to indicate the switch from the OFDM waveform to the FMCW waveform.

4. The first wireless device of claim 1, wherein the control information indicates that the first wireless device is to transmit FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling.

5. The first wireless device of claim 1, wherein the control information that indicates the switch is multiplexed with second control information for adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO806. The first wireless device of claim 1, wherein the one or more processors are further configured to:transmit measurement data, a report, or assistance information to the second wireless device, wherein the switch occurs in response to the measurement data, the report, or the assistance information.

7. The first wireless device of claim 1, wherein the control information is communicated via a first component carrier or a first bandwidth part and the FMCW signal is transmitted via a second component carrier or a second bandwidth part that is different from the first component carrier or the first bandwidth part.

8. The first wireless device of claim 1, wherein the one or more processors are further configured to:receive, from the second wireless device, an indication of a partial or complete cancellation of FMCW signaling.

9. The first wireless device of claim 8, wherein the indication comprises a starting and length indicator value (SLIV), a resource indication value (RIV), or a bitmap indicating one or more resources for which the FMCW signaling is canceled.

10. A second wireless device, comprising:one or more transceivers;one or more memory; andone or more processors electronically coupled to the one or more memory and the one or more transceivers, the one or more processors configured to:communicate, with a first wireless device, control information associated with a frequency modulated continuous wave (FMCW) signal between the first wireless device and the second wireless device, wherein the control information indicates a switch from an orthogonal frequency-division multiplexing (OFDM) waveform to an FMCW waveform for one or more component carriers; andreceive, from the first wireless device, the FMCW signal based at least in part on the control information associated with the FMCW signal.Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO8111. The second wireless device of claim 10, wherein the switch occurs after a period from communication of the control information.

12. The second wireless device of claim 10, wherein the control information comprises downlink control information (DCI) or a medium access control control element (MAC CE) to indicate the switch from the OFDM waveform to the FMCW waveform.

13. The second wireless device of claim 10, wherein the control information indicates that the first wireless device is to transmit FMCW signaling aperiodically, or indicates an activation or deactivation for periodic or semi-persistent FMCW signaling.

14. The second wireless device of claim 10, wherein the control information that indicates the switch is multiplexed with second control information for adapting a resource allocation, switching an antenna port, switching a power control parameter, or a combination thereof.

15. The second wireless device of claim 10, wherein the one or more processors are further configured to:receive measurement data, a report, or assistance information from the first wireless device, wherein the switch occurs in response to the measurement data, the report, or the assistance information.

16. The second wireless device of claim 10, wherein the control information is communicated via a first component carrier or a first bandwidth part and the FMCW signal is transmitted via a second component carrier or a second bandwidth part that is different from the first component carrier or the first bandwidth part.

17. The second wireless device of claim 10, wherein the one or more processors are further configured to:transmit, to the first wireless device, an indication of a partial or complete cancellation of FMCW signaling.

18. The second wireless device of claim 17, wherein the indication comprises a starting and length indicator value (SLIV), a resource indication valueAttorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO82(RIV), or a bitmap indicating one or more resources for which the FMCW signaling is canceled.

19. A method for wireless communications at a first wireless device, comprising:communicating, with a second wireless device, control information associated with a frequency modulated continuous wave (FMCW) signal between the first wireless device and the second wireless device, wherein the control information indicates a switch from an orthogonal frequency-division multiplexing (OFDM) waveform to an FMCW waveform for one or more component carriers; and transmitting, to the second wireless device, the FMCW signal based at least in part on the control information associated with the FMCW signal.

20. The method of claim 19, further comprising:transmitting an indication of a power for transmission of the FMCW signal to the second wireless device.

21. The method of claim 19, wherein the FMCW signal is transmitted via multiple bands with respective power amplifiers.

22. The method of claim 19, wherein the FMCW signal is transmitted via aggregated bandwidths that are configured separately from a sounding reference signal (SRS).

23. The method of claim 19, further comprising:transmitting, to the second wireless device, an indication of a capability of the first wireless device to transmit the FMCW signal, and wherein the control information associated with the FMCW signal is communicated based at least in part on the indication of the capability.

24. The method of claim 19, wherein the FMCW signal is transmitted as part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure.

25. A method for wireless communications at a second wireless device, comprising:Attorney Docket No. PY2659GR.WO (114958.TBD)Qualcomm Ref. No. 2407012WO83communicating, with a first wireless device, control information associated with a frequency modulated continuous wave (FMCW) signal between the first wireless device and the second wireless device, wherein the control information indicates a switch from an orthogonal frequency-division multiplexing (OFDM) waveform to an FMCW waveform for one or more component carriers; and receiving, from the first wireless device, the FMCW signal based at least in part on the control information associated with the FMCW signal.

26. The method of claim 25, further comprising:receiving an indication of a power for transmission of the FMCW signal from the first wireless device.

27. The method of claim 25, wherein the FMCW signal is received via multiple bands.

28. The method of claim 25, wherein the FMCW signal is received via aggregated bandwidths that are configured separately from a sounding reference signal (SRS).

29. The method of claim 25, further comprising:receiving, from the first wireless device, an indication of a capability of the first wireless device to transmit the FMCW signal, and wherein the control information associated with the FMCW signal is communicated based at least in part on the indication of the capability.

30. The method of claim 25, wherein the FMCW signal is received as part of a channel quality estimation procedure, a beam management procedure, a sensing procedure, or a positioning procedure.Attorney Docket No. PY2659GR.WO (114958.TBD)

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