INTERLACED SENSING TRANSMISSIONS

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This Patent Application claims priority to Greek Patent Application No.

20220100812, filed on October 3, 2022, entitled “SIDELINK RESOURCE MANAGEMENT FOR INTERLACED SENSING TRANSMISSIONS,” and assigned to the assignee hereof. The disclosure of the prior Application is considered part of and is incorporated by reference into this Patent Application.

FIELD OF THE DISCLOSURE

[0002] Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for sidelink resource management for interlaced sensing transmissions.

BACKGROUND

[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or the like). Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC- FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0004] A wireless network may include one or more network nodes that support communication for wireless communication devices, such as a user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communications and uplink communications. “Downlink” (or “DL”) refers to a communication link from the network node to the UE, and “uplink” (or “UL”) refers to a communication link from the UE to the network node. Some wireless networks may support device-to-device communication, such as via a local link (e.g., a sidelink (SL), a wireless local area network (WLAN) link, and/or a wireless personal area network (WPAN) link, among other examples). [0005] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate on a municipal, national, regional, and/or global level. New Radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP. NR is designed to better support mobile broadband internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink, using CP-OFDM and/or single-carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful.

SUMMARY

[0006] Some aspects described herein relate to a user equipment (UE) for wireless communication. The user equipment may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource. The one or more processors may be configured to transmit a sensing transmission based on the reservation communication.

[0007] Some aspects described herein relate to a UE for wireless communication. The user equipment may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously-reserved sensing interlace. The one or more processors may be configured to transmit a sensing transmission based on the reservation communication.

[0008] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a UE. The method may include transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource. The method may include transmitting a sensing transmission based on the reservation communication.

[0009] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a UE. The method may include transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously -reserved sensing interlace. The method may include transmitting a sensing transmission based on the reservation communication.

[0010] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit a sensing transmission based on the reservation communication.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by an UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously -reserved sensing interlace. The set of instructions, when executed by one or more processors of the UE, may cause the UE to transmit a sensing transmission based on the reservation communication.

[0012] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource. The apparatus may include means for transmitting a sensing transmission based on the reservation communication.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously-reserved sensing interlace. The apparatus may include means for transmitting a sensing transmission based on the reservation communication.

[0014] Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network entity, network node, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings, specification, and appendix.

[0015] The foregoing has outlined rather broadly the features and technical advantages of examples according to the disclosure in order that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. Characteristics of the concepts disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purposes of illustration and description, and not as a definition of the limits of the claims.

[0016] While aspects are described in the present disclosure by illustration to some examples, those skilled in the art will understand that such aspects may be implemented in many different arrangements and scenarios. Techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and/or packaging arrangements. For example, some aspects may be implemented via integrated chip embodiments or other non-modulecomponent based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, rctail/purchasing devices, medical devices, and/or artificial intelligence devices). Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and/or system-level components. Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects. For example, transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and/or summers). It is intended that aspects described herein may be practiced in a wide variety of devices, components, systems, distributed arrangements, and/or end-user devices of varying size, shape, and constitution.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] So that the above-recited features of the present disclosure can be understood in detail, a more particular description, briefly summarized above, may be had by reference to aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects. The same reference numbers in different drawings may identify the same or similar elements.

[0018] Fig. 1 is a diagram illustrating an example of a wireless network, in accordance with the present disclosure. [0019] Fig. 2 is a diagram illustrating an example of a network node in communication with a user equipment (UE) in a wireless network, in accordance with the present disclosure.

[0020] Fig. 3 is a diagram illustrating an example of sidelink communications, in accordance with the present disclosure.

[0021] Fig. 4 is a diagram illustrating an example associated with mitigating interference in a sidelink resource pool, in accordance with the present disclosure.

[0022] Fig. 5 is a diagram illustrating an example associated with sidelink resource management for interlaced sensing transmissions, in accordance with the present disclosure. [0023] Fig. 6 is a diagram illustrating an example associated with sidelink resource management for interlaced sensing transmissions, in accordance with the present disclosure. [0024] Fig. 7 is a diagram illustrating an example process performed, for example, by a UE, in accordance with the present disclosure.

[0025] Fig. 8 is a diagram illustrating an example process performed, for example, by a UE, in accordance with the present disclosure.

[0026] Fig. 9 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.

DETAILED DESCRIPTION

[0027] Various aspects of the disclosure are described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art should appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or combined with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method which is practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim. [0028] Aspects and examples generally include a method, apparatus, network node, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and/or processing system as described or substantially described herein with reference to and as illustrated by the drawings and specification.

[0029] This disclosure may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. Characteristics of the concepts disclosed herein, both their organization and method of operation, together with associated advantages, are better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purposes of illustration and description, and not as a definition of the limits of the claims.

[0030] While aspects are described in the present disclosure by illustration to some examples, such aspects may be implemented in many different arrangements and scenarios. Techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and/or packaging arrangements. For example, some aspects may be implemented via integrated chip embodiments or other non-module-component-based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail/purchasing devices, medical devices, and/or artificial intelligence devices). Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and/or system-level components.

Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects. For example, transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and/or summers). Aspects described herein may be practiced in a wide variety of devices, components, systems, distributed arrangements, and/or end-user devices of varying size, shape, and constitution.

[0031] Several aspects of telecommunication systems will now be presented with reference to various apparatuses and techniques. These apparatuses and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, or the like (collectively referred to as “elements”). These elements may be implemented using hardware, software, or combinations thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. [0032] While aspects may be described herein using terminology commonly associated with a 5G or New Radio (NR) radio access technology (RAT), aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G).

[0033] Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with the present disclosure. The wireless network 100 may be or may include elements of a 5G (e.g., NR) network and/or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. The wireless network 100 may include one or more network nodes 110 (shown as a network node 110a, a network node 110b, a network node 110c, and a network node 1 lOd), a user equipment (UE) 120 or multiple UEs 120 (shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e), and/or other entities. A network node 110 is a network node that communicates with UEs 120. As shown, a network node 110 may include one or more network nodes. For example, a network node 110 may be an aggregated network node, meaning that the aggregated network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station), meaning that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed among two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0034] In some examples, a network node 110 is or includes a network node that communicates with UEs 120 via a radio access link, such as an RU. In some examples, a network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, a network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or a core network via a backhaul link, such as a CU. In some examples, a network node 110 (such as an aggregated network node 110 or a disaggregated network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and/or one or more DUs. A network node 110 may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmission reception point (TRP), a DU, an RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, the network nodes 110 may be interconnected to one another or to one or more other network nodes 110 in the wireless network 100 through various types of fronthaul, midhaul, and/or backhaul interfaces, such as a direct physical connection, an air interface, or a virtual network, using any suitable transport network.

[0035] In some examples, a network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term “cell” can refer to a coverage area of a network node 110 and/or a network node subsystem serving this coverage area, depending on the context in which the term is used. A network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 having association with the femto cell (e.g., UEs 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or an in-home network node. In the example shown in Fig. 1, the network node 110a may be a macro network node for a macro cell 102a, the network node 110b may be a pico network node for a pico cell 102b, and the network node 110c may be a femto network node for a femto cell 102c. A network node may support one or multiple (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a network node 110 that is mobile (e.g., a mobile network node).

[0036] In some aspects, the term “base station” or “network node” may refer to an aggregated base station, a disaggregated base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, “base station” or “network node” may refer to a CU, a DU, an RU, a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC), or a Non-Real Time (Non-RT) RIC, or a combination thereof. In some aspects, the term “base station” or “network node” may refer to one device configured to perform one or more functions, such as those described herein in connection with the network node 110. In some aspects, the term “base station” or “network node” may refer to a plurality of devices configured to perform the one or more functions. For example, in some distributed systems, each of a quantity of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to duplicate performance of at least a portion of the function, and the term “base station” or “network node” may refer to any one or more of those different devices. In some aspects, the term “base station” or “network node” may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term “base station” or “network node” may refer to one of the base station functions and not another. In this way, a single device may include more than one base station.

[0037] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive a transmission of data from an upstream node (e.g., a network node 110 or a UE 120) and send a transmission of the data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that can relay transmissions for other UEs 120. In the example shown in Fig. 1, the network node 1 lOd (e.g., a relay network node) may communicate with the network node 110a (e.g., a macro network node) and the UE 120d in order to facilitate communication between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, or the like. [0038] The wireless network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, or the like. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and/or different impacts on interference in the wireless network 100. For example, macro network nodes may have a high transmit power level (e.g., 5 to 40 watts) whereas pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1 to 2 watts).

[0039] A network controller 130 may couple to or communicate with a set of network nodes 110 and may provide coordination and control for these network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may communicate with one another directly or indirectly via a wireless or wireline backhaul communication link. In some aspects, the network controller 130 may be a CU or a core network device, or may include a CU or a core network device.

[0040] The UEs 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. A UE 120 may include, for example, an access terminal, a terminal, a mobile station, and/or a subscriber unit. A UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and/or a satellite radio), a vehicular component or sensor, a smart meter/sensor, industrial manufacturing equipment, a global positioning system device, a UE function of a network node, and/or any other suitable device that is configured to communicate via a wireless or wired medium.

[0041] Some UEs 120 may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. An MTC UE and/or an eMTC UE may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, and/or a location tag, that may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Intemet-of-Things (loT) devices, and/or may be implemented as NB-IoT (narrowband loT) devices. Some UEs 120 may be considered a Customer Premises Equipment. A UE 120 may be included inside a housing that houses components of the UE 120, such as processor components and/or memory components. In some examples, the processor components and the memory components may be coupled together. For example, the processor components (e.g., one or more processors) and the memory components (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and/or electrically coupled.

[0042] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a particular RAT and may operate on one or more frequencies. A RAT may be referred to as a radio technology, an air interface, or the like. A frequency may be referred to as a carrier, a frequency channel, or the like. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0043] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using a network node 110 as an intermediary to communicate with one another). For example, the UEs 120 may communicate using peer-to-peer (P2P) communications, device -to -device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to- vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol), and/or a mesh network. In such examples, a UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the network node 110.

[0044] Devices of the wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, channels, or the like. For example, devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles. A similar nomenclature issue sometimes occurs with regard to FR2, which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.

[0045] The frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified an operating band for these mid-band frequencies as frequency range designation FR3 (7.125 GHz - 24.25 GHz). Frequency bands falling within FR3 may inherit FR1 characteristics and/or FR2 characteristics, and thus may effectively extend features of FR1 and/or FR2 into mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz - 71 GHz), FR4 (52.6 GHz - 114.25 GHz), and FR5 (114.25 GHz - 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0046] With the above examples in mind, unless specifically stated otherwise, it should be understood that the term “sub-6 GHz” or the like, if used herein, may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Further, unless specifically stated otherwise, it should be understood that the term “millimeter wave” or the like, if used herein, may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and/or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and/or FR5) may be modified, and techniques described herein are applicable to those modified frequency ranges.

[0047] In some aspects, the UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource; and transmit a sensing transmission based on the reservation communication.

[0048] In some aspects, the communication manager 140 may transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously -reserved sensing interlace; and transmit a sensing transmission based on the reservation communication. Additionally, or alternatively, the communication manager 140 may perform one or more other operations described herein. [0049] As indicated above, Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.

[0050] Fig. 2 is a diagram illustrating an example 200 of a network node 110 in communication with a UE 120 in a wireless network 100, in accordance with the present disclosure. The network node 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T> 1). The UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R > 1). The network node 110 of example 200 includes one or more radio frequency components, such as antennas 234 and a modem 254. In some examples, a network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include radio frequency components that facilitate direct communication with the UE 120, such as one or more CUs, or one or more DUs.

[0051] At the network node 110, a transmit processor 220 may receive data, from a data source 212, intended for the UE 120 (or a set of UEs 120). The transmit processor 220 may select one or more modulation and coding schemes (MCSs) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from that UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS(s) selected for the UE 120 and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and synchronization signals (e.g., a primary synchronization signal (PS S) or a secondary synchronization signal (SSS)). A transmit (TX) multiple -input multiple -output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems), shown as modems 232a through 232t. For example, each output symbol stream may be provided to a modulator component (shown as MOD) of a modem 232. Each modem 232 may use a respective modulator component to process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 232 may further use a respective modulator component to process (e.g., convert to analog, amplify, fdter, and/or upconvert) the output sample stream to obtain a downlink signal. The modems 232a through 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas), shown as antennas 234a through 234t.

[0052] At the UE 120, a set of antennas 252 (shown as antennas 252a through 252r) may receive the downlink signals from the network node 110 and/or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems), shown as modems 254a through 254r. For example, each received signal may be provided to a demodulator component (shown as DEMOD) of a modem 254. Each modem 254 may use a respective demodulator component to condition (e.g., filter, amplify, downconvert, and/or digitize) a received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to a data sink 260, and may provide decoded control information and system information to a controller/processor 280. The term “controller/processor” may refer to one or more controllers, one or more processors, or a combination thereof. A channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RS SI) parameter, a reference signal received quality (RSRQ) parameter, and/or a CQI parameter, among other examples. In some examples, one or more components of the UE 120 may be included in a housing 284.

[0053] The network controller 130 may include a communication unit 294, a controller/processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0054] One or more antennas (e.g., antennas 234a through 234t and/or antennas 252a through 252r) may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and/or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, and/or one or more antenna elements coupled to one or more transmission and/or reception components, such as one or more components of Fig. 2.

[0055] Each of the antenna elements may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit cross-polarized signals. The antenna elements may include patch antennas, dipole antennas, or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. A spacing between antenna elements may be such that signals with a desired wavelength transmitted separately by the antenna elements may interact or interfere (e.g., to form a desired beam). For example, given an expected range of wavelengths or frequencies, the spacing may provide a quarter wavelength, half wavelength, or other fraction of a wavelength of spacing between neighboring antenna elements to allow for interaction or interference of signals transmitted by the separate antenna elements within that expected range.

[0056] Antenna elements and/or sub-elements may be used to generate beams. “Beam” may refer to a directional transmission such as a wireless signal that is transmitted in a direction of a receiving device. A beam may include a directional signal, a direction associated with a signal, a set of directional resources associated with a signal (e.g., angle of arrival, horizontal direction, vertical direction), and/or a set of parameters that indicate one or more aspects of a directional signal, a direction associated with a signal, and/or a set of directional resources associated with a signal.

[0057] As indicated above, antenna elements and/or sub-elements may be used to generate beams. For example, antenna elements may be individually selected or deselected for transmission of a signal (or signals) by controlling an amplitude of one or more corresponding amplifiers. Beamforming includes generation of a beam using multiple signals on different antenna elements, where one or more, or all, of the multiple signals are shifted in phase relative to each other. The formed beam may carry physical or higher layer reference signals or information. As each signal of the multiple signals is radiated from a respective antenna element, the radiated signals interact, interfere (constructive and destructive interference), and amplify each other to form a resulting beam. The shape (such as the amplitude, width, and/or presence of side lobes) and the direction (such as an angle of the beam relative to a surface of an antenna array) can be dynamically controlled by modifying the phase shifts or phase offsets of the multiple signals relative to each other.

[0058] Beamforming may be used for communications between a UE and a base station, such as for millimeter wave communications and/or the like. In such a case, the base station may provide the UE with a configuration of transmission configuration indicator (TCf) states that respectively indicate beams that may be used by the UE, such as for receiving a physical downlink shared channel (PDSCH). The base station may indicate an activated TCI state to the UE, which the UE may use to select a beam for receiving the PDSCH.

[0059] A beam indication may be, or include, a TCI state information element, a beam identifier (ID), spatial relation information, a TCI state ID, a closed loop index, a panel ID, a TRP ID, and/or a sounding reference signal (SRS) set ID, among other examples. A TCI state information element (referred to as a TCI state herein) may indicate information associated with a beam such as a downlink beam. For example, the TCI state information element may indicate a TCI state identification (e.g., a tci-StatelD), a quasi-co-location (QCL) type (e.g., a qcl-Typel, qcl-Type2, qcl-TypeA, qcl-TypeB, qcl-TypeC, qcl-TypeD, and/or the like), a cell identification (e.g., a ServCelllndex), a bandwidth part identification (bwp-Id), a reference signal identification such as a CSI-RS (e.g., wNZP-CSI-RS-Resourceld, im SSB-Index. and/or the like), and/or the like. Spatial relation information may similarly indicate information associated with an uplink beam.

[0060] The beam indication may be a joint or separate downlink (DL)/uplink (UL) beam indication in a unified TCI framework. In some cases, the network may support layer 1 (L 1)- based beam indication using at least UE-specific (unicast) downlink control information (DCI) to indicate joint or separate DL/UL beam indications from active TCI states. In some cases, existing DCI formats 1 1 and/or 1 2 may be reused for beam indication. The network may include a support mechanism for a UE to acknowledge successful decoding of a beam indication. For example, the acknowledgment/negative acknowledgment (ACK/NACK) of the PDSCH scheduled by the DCI carrying the beam indication may be also used as an ACK for the DCI.

[0061] Beam indications may be provided for carrier aggregation (CA) scenarios. In a unified TCI framework, information the network may support common TCI state ID update and activation to provide common QCL and/or common UL transmission spatial filter or filters across a set of configured component carriers (CCs). This type of beam indication may apply to intra-band CA, as well as to joint DL/UL and separate DL/UL beam indications. The common TCI state ID may imply that one reference signal (RS) determined according to the TCI state(s) indicated by a common TCI state ID is used to provide QCL Type-D indication and to determine UL transmission spatial filters across the set of configured CCs.

[0062] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, and/or CQI) from the controller/processor 280. The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by the modems 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of the antenna(s) 252, the modem(s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, and/or the TX MIMO processor 266. The transceiver may be used by a processor (e.g., the controller/processor 280) and the memory 282 to perform aspects of any of the methods described herein (e.g., with reference to Figs. 5-9).

[0063] At the network node 110, the uplink signals from UE 120 and/or other UEs may be received by the antennas 234, processed by the modem 232 (e.g., a demodulator component, shown as DEMOD, of the modem 232), detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and provide the decoded control information to the controller/processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and/or uplink communications. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of the antenna(s) 234, the modem(s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 220, and/or the TX MIMO processor 230. The transceiver may be used by a processor (e.g., the controller/processor 240) and the memory 242 to perform aspects of any of the methods described herein (e.g., with reference to Figs. 5-9).

[0064] In some aspects, the controller/processor 280 may be a component of a processing system. A processing system may generally be a system or a series of machines or components that receives inputs and processes the inputs to produce a set of outputs (which may be passed to other systems or components of, for example, the UE 120). For example, a processing system of the UE 120 may be a system that includes the various other components or subcomponents of the UE 120.

[0065] The processing system of the UE 120 may interface with one or more other components of the UE 120, may process information received from one or more other components (such as inputs or signals), or may output information to one or more other components. For example, a chip or modem of the UE 120 may include a processing system, a first interface to receive or obtain information, and a second interface to output, transmit, or provide information. In some examples, the first interface may be an interface between the processing system of the chip or modem and a receiver, such that the UE 120 may receive information or signal inputs, and the information may be passed to the processing system. In some examples, the second interface may be an interface between the processing system of the chip or modem and a transmitter, such that the UE 120 may transmit information output from the chip or modem. A person having ordinary skill in the art will readily recognize that the second interface also may obtain or receive information or signal inputs, and the first interface also may output, transmit, or provide information.

[0066] In some aspects, the controller/processor 240 may be a component of a processing system. A processing system may generally be a system or a series of machines or components that receives inputs and processes the inputs to produce a set of outputs (which may be passed to other systems or components of, for example, the network node 110). For example, a processing system of the network node 110 may be a system that includes the various other components or subcomponents of the network node 110.

[0067] The processing system of the network node 110 may interface with one or more other components of the network node 110, may process information received from one or more other components (such as inputs or signals), or may output information to one or more other components. For example, a chip or modem of the network node 110 may include a processing system, a first interface to receive or obtain information, and a second interface to output, transmit, or provide information. In some examples, the first interface may be an interface between the processing system of the chip or modem and a receiver, such that the network node 110 may receive information or signal inputs, and the information may be passed to the processing system. In some examples, the second interface may be an interface between the processing system of the chip or modem and a transmitter, such that the network node 110 may transmit information output from the chip or modem. A person having ordinary skill in the art will readily recognize that the second interface also may obtain or receive information or signal inputs, and the first interface also may output, transmit, or provide information.

[0068] The controller/processor 240 of the network node 110, the controller/processor 280 of the UE 120, and/or any other component(s) of Fig. 2 may perform one or more techniques associated with sidelink resource management for interlaced sensing transmissions, as described in more detail elsewhere herein. For example, the controller/processor 240 of the network node 110, the controller/processor 280 of the UE 120, and/or any other component(s) of Fig. 2 may perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, and/or other processes as described herein. The memory 242 and the memory 282 may store data and program codes for the network node 110 and the UE 120, respectively. In some examples, the memory 242 and/or the memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the network node 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the network node 110 to perform or direct operations of, for example, process 700 of Fig. 7, process 800 of Fig. 8, and/or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.

[0069] In some aspects, the UE 120 includes means for transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource; and/or means for transmitting a sensing transmission based on the reservation communication.

[0070] In some aspects, the UE 120 includes means for transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously -reserved sensing interlace; and/or means for transmitting a sensing transmission based on the reservation communication. The means for the UE to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller/processor 280, or memory 282.

[0071] While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of the controller/processor 280. [0072] As indicated above, Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.

[0073] Deployment of communication systems, such as 5G NR systems, may be arranged in multiple manners with various components or constituent parts. In a 5G NR system, or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station, or a network equipment may be implemented in an aggregated or disaggregated architecture. For example, a base station (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP, or a cell, among other examples), or one or more units (or one or more components) performing base station functionality, may be implemented as an aggregated base station (also known as a standalone base station or a monolithic base station) or a disaggregated base station. “Network entity” or “network node” may refer to a disaggregated base station, or to one or more units of a disaggregated base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).

[0074] An aggregated base station (e.g., an aggregated network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A disaggregated base station (e.g., a disaggregated network node) may be configured to utilize a protocol stack that is physically or logically distributed among two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed throughout one or multiple other network nodes. The DUs may be implemented to communicate with one or more RUs. Each of the CU, DU and RU also can be implemented as virtual units, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), among other examples.

[0075] Base station-type operation or network design may consider aggregation characteristics of base station functionality. For example, disaggregated base stations may be utilized in an IAB network, an open radio access network (O-RAN (such as the network configuration sponsored by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate scaling of communication systems by separating base station functionality into one or more units that can be individually deployed. A disaggregated base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented for at least one unit virtually, which can enable flexibility in network design. The various units of the disaggregated base station can be configured for wired or wireless communication with at least one other unit of the disaggregated base station.

[0076] Fig. 3 is a diagram illustrating an example 300 of sidelink communications, in accordance with the present disclosure.

[0077] As shown in Fig. 3, a first UE 305-1 may communicate with a second UE 305-2 (and one or more other UEs 305) via one or more sidelink channels 310. The UEs 305-1 and 305-2 may communicate using the one or more sidelink channels 310 for P2P communications, D2D communications, V2X communications (e.g., which may include V2V communications, V2I communications, and/or V2P communications) and/or mesh networking. In some aspects, the UEs 305 (e.g., UE 305-1 and/or UE 305-2) may correspond to one or more other UEs described elsewhere herein, such as UE 120. In some aspects, the one or more sidelink channels 310 may use a PC5 interface and/or may operate in a high frequency band (e.g., the 5.9 GHz band). Additionally, or alternatively, the UEs 305 may synchronize timing of transmission time intervals (TTIs) (e.g., frames, subframes, slots, or symbols) using global navigation satellite system (GNSS) timing.

[0078] As further shown in Fig. 3, the one or more sidelink channels 310 may include a physical sidelink control channel (PSCCH) 315, a physical sidelink shared channel (PSSCH) 320, and/or a physical sidelink feedback channel (PSFCH) 325. The PSCCH 315 may be used to communicate control information, similar to a physical downlink control channel (PDCCH) and/or a physical uplink control channel (PUCCH) used for cellular communications with a network node 110 via an access link or an access channel. The PSSCH 320 may be used to communicate data, similar to a PDSCH and/or a physical uplink shared channel (PUSCH) used for cellular communications with a network node 110 via an access link or an access channel. For example, the PSCCH 315 may carry sidelink control information (SCI) 330, which may indicate various control information used for sidelink communications, such as one or more resources (e.g., time resources, frequency resources, and/or spatial resources) where a transport block (TB) 335 may be carried on the PSSCH 320. The TB 335 may include data. The PSFCH 325 may be used to communicate sidelink feedback 340, such as hybrid automatic repeat request (HARQ) feedback (e.g., ACK/NACK information), transmit power control (TPC), and/or a scheduling request (SR).

[0079] Although shown on the PSCCH 315, in some aspects, the SCI 330 may include multiple communications in different stages, such as a first stage SCI (SCI-1) and a second stage SCI (SCI-2). The SCI-1 may be transmitted on the PSCCH 315. The SCI-2 may be transmitted on the PSSCH 320. The SCI-1 may include, for example, an indication of one or more resources (e.g., time resources, frequency resources, and/or spatial resources) on the PSSCH 320, information for decoding sidelink communications on the PSSCH, a quality of service (QoS) priority value, a resource reservation period, a PSSCH DMRS pattern, an SCI format for the SCI-2, a beta offset for the SCI-2, a quantity of PSSCH DMRS ports, and/or an MCS. The SCI-2 may include information associated with data transmissions on the PSSCH 320, such as a HARQ process ID, a new data indicator (NDI), a source identifier, a destination identifier, and/or a channel state information (CSI) report trigger.

[0080] In some aspects, the one or more sidelink channels 310 may use resource pools. For example, a scheduling assignment (e.g., included in SCI 330) may be transmitted in subchannels using specific resource blocks (RBs) across time. In some aspects, data transmissions (e.g., on the PSSCH 320) associated with a scheduling assignment may occupy adjacent RBs in the same subframe as the scheduling assignment (e.g., using frequency division multiplexing). In some aspects, a scheduling assignment and associated data transmissions are not transmitted on adjacent RBs.

[0081] In some aspects, a UE 305 may operate using a sidelink transmission mode (e.g., Mode 1) where resource selection and/or scheduling is performed by a network node 110 (e.g., a base station, a CU, or a DU). For example, the UE 305 may receive a grant (e.g., in DCI or in a radio resource control (RRC) message, such as for configured grants) from the network node 110 (e.g., directly or via one or more network nodes) for sidelink channel access and/or scheduling. In some aspects, a UE 305 may operate using a transmission mode (e.g., Mode 2) where resource selection and/or scheduling is performed by the UE 305 (e.g., rather than a network node 110). In some aspects, the UE 305 may perform resource selection and/or scheduling by sensing channel availability for transmissions. For example, the UE 305 may measure an RSSI parameter (e.g., a sidelink-RSSI (S-RSSI) parameter) associated with various sidelink channels, may measure an RSRP parameter (e.g., a PSSCH-RSRP parameter) associated with various sidelink channels, and/or may measure an RSRQ parameter (e.g., a PSSCH-RSRQ parameter) associated with various sidelink channels, and may select a channel for transmission of a sidelink communication based at least in part on the measurement(s).

[0082] Additionally, or alternatively, the UE 305 may perform resource selection and/or scheduling using SCI 330 received in the PSCCH 315, which may indicate occupied resources and/or channel parameters. Additionally, or alternatively, the UE 305 may perform resource selection and/or scheduling by determining a channel busy ratio (CBR) associated with various sidelink channels, which may be used for rate control (e.g., by indicating a maximum number of resource blocks that the UE 305 can use for a particular set of subframes).

[0083] In the transmission mode where resource selection and/or scheduling is performed by a UE 305, the UE 305 may generate sidelink grants, and may transmit the grants in SCI 330. A sidelink grant may indicate, for example, one or more parameters (e.g., transmission parameters) to be used for an upcoming sidelink transmission, such as one or more resource blocks to be used for the upcoming sidelink transmission on the PSSCH 320 (e.g., for TBs 335), one or more subframes to be used for the upcoming sidelink transmission, and/or an MCS to be used for the upcoming sidelink transmission. In some aspects, a UE 305 may generate a sidelink grant that indicates one or more parameters for semi-persistent scheduling (SPS), such as a periodicity of a sidelink transmission. Additionally, or alternatively, the UE 305 may generate a sidelink grant for event-driven scheduling, such as for an on-demand sidelink message.

[0084] In some cases, UEs 305 can be used for RF sensing. For example, a UE 305 can provide sensing as a service (e.g., on-demand RF sensing). In some cases, a UE 305 can perform sensing-assisted communications, in which sensing is performed transparently to the user, to aid communication performance (e.g., by identifying and/or predicting optimal beams, among other examples). In both cases, sensing transmissions can be performed over the same (time-frequency) resources as conventional communication transmissions to improve spectral efficiency and employ mechanisms for coordinated channel access (e.g., to avoid collisions). Thus, sensing transmissions can be effectively treated as a new type of traffic that the network is called to support. In principle, the sensing transmissions and/or applications can be completely transparent from a physical (PHY) layer and/or medium access control (MAC) layer perspective, using the same waveforms and procedures as any other communication transmission and/or application. For example, a conventional OFDM waveform can be used as a sensing waveform.

[0085] While treating sensing transmissions in a PHY/M AC-transparent manner can be convenient, it also can result in unnecessary overhead. For example, sensing transmissions have, in general, high requirements in terms of bandwidth, sensing duration (e.g., coherent processing interval (CPI)) and sensing (duty) cycle. Reusing conventional slot format for sensing transmissions can result in a single UE occupying a large amount of frequency resources (e.g., resource elements (REs), physical resource blocks (PRBs), and/or subchannels) and time resources (symbols and/or slots) every time it senses the environment. This, in turn, can negatively impact resource availability when multiple UEs are sharing the spectrum for performing communications and/or transmitting sensing transmissions.

[0086] To mitigate overhead and allow for efficient multiplexing of multiple sensing transmissions, it can be observed that bandwidth and duration requirements for the sensing signal resources do not necessarily correspond to a contiguous utilization of these resources. For example, not every RE in a bandwidth, nor every symbol in a duration (e.g., CPI) of a sensing transmission are necessary to be utilized. Accordingly, interlaced time -frequency patterns for sensing transmissions can be implemented. Resource patterns that consist of RE- based interlaces and/or symbol-based interlaces can allow for efficient multiplexing of sensing transmissions over the same bandwidth at the same time.

[0087] As shown in Fig. 3, for example, SCI 330 can be used to reserve one or more sidelink resources of a pool 345 of resources. The illustrated time/frequency resources can be partitioned into RE-based & symbol-based interlaced time-frequency patterns. Each illustrated interlace is a combination in both frequency and time domains. In the illustrated example, each RE is enumerated according to the interlace it corresponds to. Thus, for example, each resource labeled “4” is a component of an interlace that can be referred to, for example, as “interlace 4.” Although interlace 4 is illustrated as including six resources, interlace 4 (and/or any other illustrated interlace) can contain any number of additional resources (or fewer resources). [0088] In mode-2 sidelink, UEs 305 select resources following a distributed resource selection-and-reservation procedure that is configured to mitigate collisions. A collision is a situation in which more than one UE 305 select a same resource for transmission. For example, when a UE 305 has a TB to transmit (using a number of subchannels and slots), the UE 305 can select the corresponding number of time-frequency resources out of the available (free) resources of the resource pool 345. In some cases, if there are many resources from which the UE 305 can choose, the UE 305 can perform the selection randomly. In some cases, the UE 305 can select more than one set of resources (e.g., resources not only for the upcoming transmission, but also resources for future transmissions and/or retransmissions). When the UE 305 performs the first transmission, that transmission will reserve the future selected resources by including an indication in corresponding SCI 330. Other UEs 305 that receive the reservation indication can “exclude” the reserved resources from the resource pool 345, thus avoiding possibly selecting the reserved resources for their own transmissions and thereby experiencing collisions.

[0089] With a sidelink resource pool supporting sensing transmissions with interlaced patterns, a mode-2 sidelink UE 305 that is to perform sensing can select and reserve an interlace. For example, a UE 305 can reserve interlace 1, in which case, the UE 305 will reserve each resource in the resource pool 345 enumerated with a “1.” In this way, multiple sidelink UEs 305 can perform sensing transmissions over the same resource pool by selecting nonoverlapping interlaces. Potentially, the entire resource pool 345 can be utilized in this manner (e.g., with every transmission performed over an interlace). As illustrated, interlace patterns are RE-based and the utilized REs are distributed across the bandwidth, with each RE being isolated (e.g., no two adjacent REs belong to a same interlace). Similarly, the utilized symbols in an interlace pattern are also isolated (e.g., no two adjacent symbols belong to a same interlace). In this way, radar processing can be simplified, as the processing corresponds to a regular sampling in frequency and time and allows for simple Fast Fourier Transform (FFT)-based processing.

[0090] During selection and/or reservation of sidelink resources by UEs 305, adjacent interlaces (interlaces having adjacent REs and/or adjacent symbols) can be reserved by different UEs 305. Although the adjacent interlaces are non-overlapping, facilitating multiplexing of UEs 305, the REs and/or symbols of each interlace can be sensitive to adjacent interlace leakage and/or interference such as inter-carrier interference (ICI) and/or inter-symbol interference (ISI). For example, even though a sensing receiver can be configured to only process the resources of a corresponding interlace for detecting targets, energy from adjacent REs can be leaked, causing ICI, due to the adjacent interlace transmission by another UE experiencing high Doppler shift and/or due to frequency offset between the two transmitters’ oscillators. In another example, the symbols transmitted over an interlace can be received with ISI energy due to the signal transmited in the previous symbol or symbols, belonging to another interlace or interlaces, and experiencing large delay spread. As a result, detection, using sensing transmissions, of targets associated with low energy return signals can be challenging due to the effective noise level increase from ISI and/or ICI. Thus, it can be desirable to protect RE-based and/or symbol-based sensing interlace transmissions from ICI and/or ISI generated by other UEs in sidelink mode-2 operation while achieving balance between protection of sensing interlace transmissions and UE multiplexing.

[0091] For example, the UE 305-1 may reserve interlace 1 and another UE 305 may reserve interlace 2. If the channel from the UE 305-1 using interlace 2 has high Doppler or there is significant frequency offset between oscillators of the UE 305-1 and the other UE 305, energy from interlace 2 REs may spill over to interlace 1 REs. If the channel from a UE 305 that has reserved interlace 13 has large delay spread (e.g., with respect to UE 305-1), energy from interlace 13 symbols may spill over to interlace 1 symbols.

[0092] As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with respect to Fig. 3.

[0093] In some cases, reducing the number of resources in the energy pool can result in mitigated interference. Fig. 4 is a diagram illustrating an example 400 associated with mitigating interference in a sidelink resource pool, in accordance with the present disclosure. As shown, a resource pool 402 may include a number of resources in a time domain and a frequency domain as described in connection with Fig. 3. In some cases, the effects of ICI and/or ISI can be mitigated by using guard REs and guard symbols to protect the interlaced REs and symbols. For example, as shown, the resource pool 402 may define the available sensing interlaces so that the distance between any RE of one interlace any RE of another interlace is at least A>=2 REs and the distance between any symbol of one interlace and any symbol of another interlace is at least Y>=2 symbols.

[0094] This semi-static approach, though simple, can be inefficient as there can be periods where the system conditions are such that these guard REs/symbols may not be needed, resulting in underutilization of resources (reduced system capacity). Accordingly, an adaptive and dynamic protection mechanism can be more efficient.

[0095] Some aspects of the techniques and apparatuses described herein may provide an adaptive mechanism for sidelink resource management for interlaced sensing transmissions. In some aspects, for operation in a resource pool with sensing interlaces, a UE that reserves an interlace may also reserve guard REs. In some aspects, the UE may be configured to reserve the guard REs based on satisfaction of a condition.

[0096] In some aspects, a UE, in addition to the resource of an interlace pattern, may reserve guard resources. The guard resources may include guard REs and/or guard symbols. In some aspects, if the interlaces are defined appropriately, reservation of guard resources may be achieved by selecting adjacent interlaces that are adjacent the reserved interlace. A reservation of the adjacent interlace may be indicated in SCI. In some aspects, the guard resources may be identified with respect to the resources of the reserved interlace, irrespective of whether the guard resources belong to one or more adjacent interlaces. For example, an interlace reservation may be accompanied by an indication of one guard RE on both sides of each interlace RE and two guard symbols prior to, and one guard symbol following, each interlace symbol. The guard RE/symbol scheme may be indicated in SCI. In some aspects, an indication of a reservation of one or more guard resources may be included in a MAC control element (MAC CE). In some aspects, the indicated guard resources may be available (“free”) at the time of reservation. For example, in some aspects, if a sidelink resource is reserved by another UE, the UE may not reserve the resource as a guard resource.

[0097] In some aspects, to avoid inefficiencies resulting from unnecessary utilization of guard resources, a UE may reserve guard resources based on a condition being satisfied. In some aspects, the UE may reserve guard resources based on more than one condition being satisfied. In some aspects, for example, the condition may be satisfied based on the reservation being for a sensing transmission configured to detect targets that result in low-power return signals. For example, the condition may be satisfied based on the targets being potentially far away (e.g., in the case of long-range radars) or the targets having small radar cross sections (RCSs). For example, guard resources may not be reserved when the sensing is performed explicitly for the detection of a target or targets whose return power exceeds a threshold.

Targets that result in low-power returns may be identified by comparing attributes associated with the potential targets with appropriate threshold attributes such as threshold attributes associated with an expected rang, an expected return power (e.g., RSRP), and/or an expected RCS.

[0098] In some aspects, the condition may be satisfied based on the interlace reservation being for a sensing transmission that is of high priority or has high reliability requirements. In some aspects, the priority level and/or reliability level of a transmission may be determined by higher layers. Thresholds may be configured for identifying a sensing transmission as being of high priority or high reliability requirement.

[0099] In some aspects, protection of reserved sensing interlace resources may be achieved without reservation of guard resources. For example, in some aspects, mechanisms may be employed to ensure that a selected sensing interlace is not adjacent to another interlace. For example, in some aspects, a UE may exclude, in addition to already reserved interlaces, additional interlaces from its resource pool that are adjacent to one or more of the already reserved interlaces. The additional interlaces to be excluded may be adjacent to reserved interlaces that are known to, or have a possibility to, result in ICI and/or 1ST For example, characterization of a reserved interlace as potential ICI- and/or ISI-inducing may be based on channel properties and/or target properties of the corresponding transmission. For example, if the UE that reserved an interlace is moving at least a threshold speed with respect to the UE performing the resource selection, then its transmission will likely experience high Doppler effects and may, therefore, correspond to an ICI-inducing interlace. As another example, if the UE that reserved an interlace is located at least a threshold distance from the UE performing the resource selection, then its transmission will likely experience a high delay spread and may, therefore, correspond to an ISI-inducing interlace.

[0100] In some aspects, an SCI reserving a sensing interlace may be indicative of information that may be used by other UEs to characterize the reserved sensing interlace as potentially ICI-inducing and/or ISI-inducing. For example, the SCI may be indicative of a position of the UE that reserved the sensing interlace (e.g., by indicating a zone ID corresponding to a geographic zone or a zone associated with a distance between the reserving UE and one or more other UEs). In some aspects, the SCI may be indicative of a speed of the UE that reserved the sensing interlace. In some aspects, the SCI may be indicative of an expected target RCS.

[0101] In some other aspects, UEs may pro-actively reserve guard resources for the purpose of protecting other transmissions. For example, a UE may determine that its transmission will experience high Doppler and/or high delay spread, and thus, that if another UE selects an adjacent interlace, it may experience ISI and/or ICI. In some aspects, the UE may, based on determining that its transmission may cause ISI and/or ICI with respect to another interlace, reserve guard resources. For example, the UE may reserve guard resources based on an expected Doppler measurement and/or delay spread satisfying (e.g, exceeding) a threshold. [0102] In this way, some aspects, as described herein, may facilitate interference mitigation in the reservation of sensing interlaces without introducing unnecessary inefficiencies.

[0103] As indicated above, Fig. 4 is provided as an example. Other examples may differ from what is described with respect to Fig. 4.

[0104] Fig. 5 is a diagram illustrating an example 500 associated with sidelink resource management for interlaced sensing transmissions, in accordance with the present disclosure. As shown in Fig. 5, a UE 502 and a UE 504 may communicate with one another. In some aspects, the UE 502 and/or the UE 504 may be, be similar to, include, or be included in, the UE 305-1 depicted in Fig. 3, the UE 305-2 depicted in Fig. 3, and/or the UE 120 depicted in Figs. 1 and 2. [0105] As shown by reference number 506, the UE 502 may receive (e.g., from a network node 508) configuration information. In some aspects, the configuration information may indicate condition information associated with determining when a condition is satisfied. For example, in some aspects, the configuration information may indicate one or more thresholds associated with identifying an interlace as being potentially ICI-inducing and/or ISI-inducing. [0106] As shown by reference number 510, the UE 502 may transmit, and the UE 504 may receive, a reservation communication. In some aspects, the reservation communication may be indicative of a reserved sensing interlace. A reserved sensing interlace may include one or more interlaced sidelink resources. The reservation communication also may be indicative of at least one guard resource. In some aspects, the reservation communication may include SCI. In some aspects, the reservation communication may include a MAC CE.

[0107] In some aspects, the at least one reserved guard resource may include at least one of a reserved guard resource element or a reserved guard symbol. For example, as shown, the UE 502 may reserve the interlace 1 for sensing transmissions. The UE 502 also may reserve the interlace 2, the interlace 4, and the interlace 13 as guard interlaces, to protect surrounding interlaces from potential interference from the interlace 1. The interlaces 2, 4, and 13 may be adjacent interlaces because they include one or more resources adjacent to one or more resources of the reserved interlace 1. In some aspects, the reservation communication may indicate the at least one reserved guard resource based on a relationship between the at least one reserved guard resource and the reserved sensing interlace. For example, the reservation communication may include a data field that indicates the relationship. The relationship may refer to adjacency of the interlaces, adjacency of one or more REs of the guard interlace to one or more REs of the reserved interlace, and/or adjacency of one or more symbols of the guard interlace to one or more symbols of the reserved interlace. In some aspects, the at least one reserved guard resource comprises an available sidelink resource.

[0108] In some aspects, the reservation communication may be indicative of the at least one reserved guard resource based on a condition being satisfied. In some aspects, the condition may be satisfied based on the sensing transmission being a sensing transmission for detecting a target that results in a low-power return signal. In some aspects, the condition may be satisfied based on the sensing transmission being a sensing transmission for detecting a target associated with a return power that satisfies a threshold. In some aspects, the condition may be satisfied based on the sensing transmission being a sensing transmission for detecting a target associated with a parameter value that satisfies a threshold. The parameter value may include at least one of a range, a return power, and/or an RCS.

[0109] In some aspects, the condition may be satisfied based on the sensing transmission satisfying a transmission threshold. The transmission threshold may include at least one of a priority threshold or a reliability threshold. In some aspects, the condition may be satisfied based on an expected Doppler measurement of a return signal associated with the sensing transmission satisfying a Doppler threshold. In some aspects, the condition may be satisfied based on an expected delay spread of a return signal associated with the sensing transmission satisfying a delay spread threshold.

[0110] As shown by reference number 512, transmit a sensing transmission. The UE 502 may transmit the sensing transmission based on the reservation communication (e.g., using the reserved interlace).

[oni] As indicated above, Fig. 5 is provided as an example. Other examples may differ from what is described with respect to Fig. 5.

[0112] Fig. 6 is a diagram illustrating an example 600 associated with sidelink resource management for interlaced sensing transmissions, in accordance with the present disclosure. Example 600 depicts a sidelink resource pool 602 from which a UE (e.g., the UE 502) is to select an interlace for sensing transmission. Interlaces 1, 2, and 13 may have been previously reserved by another UE. The UE may determine that interlaces 14 and 16 may experience ICI from interlace 13. The UE may determine that interlace 14 and 6 may experience ISI from interlace 2. Accordingly, based on these determinations, the UE may exclude interlaces 6, 14, and 16 from the resource pool 602 from which it selects the interlace for sensing transmissions. [0113] As indicated above, Fig. 6 is provided as an example. Other examples may differ from what is described with respect to Fig. 6.

[0114] Fig. 7 is a diagram illustrating an example process 700 performed, for example, by a UE, in accordance with the present disclosure. Example process 700 is an example where the UE (e.g., UE 502) performs operations associated with sidelink resource management for interlaced sensing transmissions.

[0115] As shown in Fig. 7, in some aspects, process 700 may include transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource (block 710). For example, the UE (e.g., using communication manager 908 and/or transmission component 904, depicted in Fig. 9) may transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource, as described above.

[0116] As further shown in Fig. 7, in some aspects, process 700 may include transmitting a sensing transmission based on the reservation communication (block 720). For example, the UE (e.g., using communication manager 908 and/or transmission component 904, depicted in Fig. 9) may transmit a sensing transmission based on the reservation communication, as described above.

[0117] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein. [0118] In a first aspect, the reservation communication comprises SCI. In a second aspect, alone or in combination with the first aspect, the reservation communication comprises a MAC CE.

[0119] In a third aspect, alone or in combination with one or more of the first and second aspects, the at least one reserved guard resource comprises at least one of a reserved guard resource element or a reserved guard symbol. In a fourth aspect, alone or in combination with one or more of the first through third aspects, the at least one reserved guard resource comprises at least one adjacent sensing interlace. In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the reservation communication indicates the at least one reserved guard resource based on a relationship between the at least one reserved guard resource and the reserved sensing interlace. In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the reservation communication comprises a data field that indicates the relationship. In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the at least one reserved guard resource comprises an available sidelink resource.

[0120] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the reservation communication is indicative of the at least one reserved guard resource based on a condition being satisfied. In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the condition is satisfied based on the sensing transmission comprising a sensing transmission for detecting a target that results in a low-power return signal. In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the condition is satisfied based on the sensing transmission comprising a sensing transmission for detecting a target associated with a return power that satisfies a threshold. In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the condition is satisfied based on the sensing transmission comprising a sensing transmission for detecting a target associated with a parameter value that satisfies a threshold. In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the parameter value comprises at least one of a range, a return power, and/or a return cross section. [0121] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the condition is satisfied based on the sensing transmission satisfying a transmission threshold. In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the transmission threshold comprises at least one of a priority threshold or a reliability threshold. In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, process 700 includes receiving configuration information that indicates the transmission threshold. In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, the condition is satisfied based on an expected Doppler measurement of a return signal associated with the sensing transmission satisfying a Doppler threshold. In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, the condition is satisfied based on an expected delay spread of a return signal associated with the sensing transmission satisfying a delay spread threshold.

[0122] Although Fig. 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.

[0123] Fig. 8 is a diagram illustrating an example process 800 performed, for example, by a UE, in accordance with the present disclosure. Example process 800 is an example where the UE (e.g., UE 504) performs operations associated with sidelink resource management for interlaced sensing transmissions.

[0124] As shown in Fig. 8, in some aspects, process 800 may include transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously -reserved sensing interlace (block 810). For example, the UE (e.g., using communication manager 908 and/or transmission component 904, depicted in Fig. 9) may transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously-reserved sensing interlace, as described above.

[0125] As further shown in Fig. 8, in some aspects, process 800 may include transmitting a sensing transmission based on the reservation communication (block 820). For example, the UE (e.g., using communication manager 908 and/or transmission component 904, depicted in Fig. 9) may transmit a sensing transmission based on the reservation communication, as described above.

[0126] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.

[0127] In a first aspect, the resource pool excludes the at least one adjacent interlace based on the at least one previously -reserved sensing interlace satisfying a condition, in a second aspect, alone or in combination with the first aspect, the at least one previously -reserved sensing interlace satisfies the condition based on the at least one previously -reserved sensing interlace being a potential interference-inducing sensing interlace.

[0128] In a third aspect, alone or in combination with one or more of the first and second aspects, the at least one previously -reserved sensing interlace comprises the potential interference-inducing sensing interlace based on at least one of a channel property or a target property associated with a transmission corresponding to the at least one previously -reserved sensing interlace. In a fourth aspect, alone or in combination with one or more of the first through third aspects, the channel property comprises at least one of a speed of a UE corresponding to the at least one previously -reserved sensing interlace or a Doppler measurement corresponding to the at least one previously -reserved sensing interlace. In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the channel property comprises at least one of a distance between the UE and a UE corresponding to the at least one previously-reserved sensing interlace or a delay spread corresponding to the at least one previously-reserved sensing interlace.

[0129] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, process 800 includes receiving sidelink control information that indicates at least one parameter value corresponding to the at least one of the channel property or the target property. In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the at least one parameter value indicates at least one of a position associated with a UE corresponding to the at least one previously -reserved sensing interlace, a speed associated with the UE corresponding to the at least one previously -reserved sensing interlace, or a target return cross section associated with the at least one previously -reserved sensing interlace. In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the reservation communication indicates at least one parameter value indicative of at least one of a position associated with the UE, a speed associated with the UE, or a target return cross section associated with the reserved sensing interlace.

[0130] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the reservation communication comprises sidelink control information. In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the reservation communication comprises a MAC CE.

[0131] Although Fig. 8 shows example blocks of process 800, in some aspects, process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.

[0132] Fig. 9 is a diagram of an example apparatus 900 for wireless communication, in accordance with the present disclosure. The apparatus 900 may be a UE, or a UE may include the apparatus 900. In some aspects, the apparatus 900 includes a reception component 902 and a transmission component 904, which may be in communication with one another (for example, via one or more buses and/or one or more other components). As shown, the apparatus 900 may communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device) using the reception component 902 and the transmission component 904. As further shown, the apparatus 900 may include a communication manager 908.

[0133] In some aspects, the apparatus 900 may be configured to perform one or more operations described herein in connection with Figs. 5-6. Additionally, or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as process 700 of Fig. 7, process 800 of Fig. 8, or a combination thereof. In some aspects, the apparatus 900 and/or one or more components shown in Fig. 9 may include one or more components of the UE described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 9 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.

[0134] The reception component 902 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 906. The reception component 902 may provide received communications to one or more other components of the apparatus 900. In some aspects, the reception component 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and may provide the processed signals to the one or more other components of the apparatus 900. In some aspects, the reception component 902 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described in connection with Fig. 2.

[0135] The transmission component 904 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 906. In some aspects, one or more other components of the apparatus 900 may generate communications and may provide the generated communications to the transmission component 904 for transmission to the apparatus 906. In some aspects, the transmission component 904 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and may transmit the processed signals to the apparatus 906. In some aspects, the transmission component 904 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described in connection with Fig. 2. In some aspects, the transmission component 904 may be co-located with the reception component 902 in a transceiver.

[0136] In some examples, means for transmitting, outputting, or sending (or means for outputting for transmission) may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, or a combination thereof, of the UE described above in connection with Fig. 2.

[0137] In some examples, means for receiving (or means for obtaining) may include one or more antennas, a demodulator, a MIMO detector, a receive processor, or a combination thereof, of the UE described above in connection with Fig. 2.

[0138] In some cases, rather than actually transmitting, for example, signals and/or data, a device may have an interface to output signals and/or data for transmission (a means for outputting). For example, a processor may output signals and/or data, via a bus interface, to an RF front end for transmission. Similarly, rather than actually receiving signals and/or data, a device may have an interface to obtain the signals and/or data received from another device (a means for obtaining). For example, a processor may obtain (or receive) the signals and/or data, via a bus interface, from an RF front end for reception. In various aspects, an RF front end may include various components, including transmit and receive processors, transmit and receive MIMO processors, modulators, demodulators, and the like, such as depicted in the examples in Fig. 2.

[0139] In some examples, means for determining, receiving, and/or transmitting may include various processing system components, such as a receive processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.

[0140] The communication manager 908 and/or the transmission component 904 may transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource. In some aspects, the communication manager 908 may include one or more antennas, a modem, a controller/processor, a memory, or a combination thereof, of the UE described in connection with Fig. 2. In some aspects, the communication manager 908 may include the reception component 902 and/or the transmission component 904. In some aspects, the communication manager 908 may be, be similar to, include, or be included in, the communication manager 140 depicted in Figs. 1 and 2.

[0141] The communication manager 908 and/or the transmission component 904 may transmit a sensing transmission based on the reservation communication. The communication manager 908 and/or the reception component 902 may receive configuration information that indicates the transmission threshold. [0142] The communication manager 908 and/or the transmission component 904 may transmit a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously -reserved sensing interlace. The communication manager 908 and/or the transmission component 904 may transmit a sensing transmission based on the reservation communication. The communication manager 908 and/or the reception component 902 may receive sidelink control information that indicates at least one parameter value corresponding to the at least one of the channel property or the target property.

[0143] The number and arrangement of components shown in Fig. 9 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 9. Furthermore, two or more components shown in Fig. 9 may be implemented within a single component, or a single component shown in Fig. 9 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 9 may perform one or more functions described as being performed by another set of components shown in Fig. 9.

[0144] The following provides an overview of some Aspects of the present disclosure: [0145] Aspect 1 : A method of wireless communication performed by an apparatus of a user equipment (UE), comprising: transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources, and at least one reserved guard resource; and transmitting a sensing transmission based on the reservation communication.

[0146] Aspect 2: The method of Aspect 1, wherein the reservation communication comprises sidelink control information.

[0147] Aspect 3 : The method of either of Aspects 1 or 2, wherein the reservation communication comprises a medium access control control element.

[0148] Aspect 4: The method of any of Aspects 1-3, wherein the at least one reserved guard resource comprises at least one of a reserved guard resource element or a reserved guard symbol.

[0149] Aspect 5: The method of any of Aspects 1-4, wherein the at least one reserved guard resource comprises at least one adjacent sensing interlace.

[0150] Aspect 6: The method of any of Aspects 1-5, wherein the reservation communication indicates the at least one reserved guard resource based on a relationship between the at least one reserved guard resource and the reserved sensing interlace. [0151] Aspect 7: The method of Aspect 6, wherein the reservation communication comprises a data field that indicates the relationship.

[0152] Aspect 8: The method of any of Aspects 1-7, wherein the at least one reserved guard resource comprises an available sidelink resource.

[0153] Aspect 9: The method of any of Aspects 1-8, wherein the reservation communication is indicative of the at least one reserved guard resource based on a condition being satisfied.

[0154] Aspect 10: The method of Aspect 9, wherein the condition is satisfied based on the sensing transmission comprising a sensing transmission for detecting a target that results in a low-power return signal.

[0155] Aspect 11: The method of either of Aspects 9 or 10, wherein the condition is satisfied based on the sensing transmission comprising a sensing transmission for detecting a target associated with a return power that satisfies a threshold.

[0156] Aspect 12: The method of any of Aspects 9-11, wherein the condition is satisfied based on the sensing transmission comprising a sensing transmission for detecting a target associated with a parameter value that satisfies a threshold.

[0157] Aspect 13 : The method of Aspect 12, wherein the parameter value comprises at least one of a range, a return power, and/or a return cross section.

[0158] Aspect 14: The method of any of Aspects 9-13, wherein the condition is satisfied based on the sensing transmission satisfying a transmission threshold.

[0159] Aspect 15: The method of Aspect 14, wherein the transmission threshold comprises at least one of a priority threshold or a reliability threshold.

[0160] Aspect 16: The method of either of Aspects 14 or 15, further comprising receiving configuration information that indicates the transmission threshold.

[0161] Aspect 17: The method of any of Aspects 9-16, wherein the condition is satisfied based on an expected Doppler measurement of a return signal associated with the sensing transmission satisfying a Doppler threshold.

[0162] Aspect 18: The method of any of Aspects 9-17, wherein the condition is satisfied based on an expected delay spread of a return signal associated with the sensing transmission satisfying a delay spread threshold.

[0163] Aspect 19: A method of wireless communication performed by an apparatus of a user equipment (UE), comprising: transmitting a reservation communication indicative of a reserved sensing interlace, comprising one or more interlaced sidelink resources of a resource pool, wherein the resource pool excludes at least one adjacent interlace that is adjacent to at least one previously -reserved sensing interlace; and transmitting a sensing transmission based on the reservation communication. [0164] Aspect 20: The method of Aspect 19, wherein the resource pool excludes the at least one adjacent interlace based on the at least one previously -reserved sensing interlace satisfying a condition.

[0165] Aspect 21 : The method of Aspect 20, wherein the at least one previously -reserved sensing interlace satisfies the condition based on the at least one previously -reserved sensing interlace being a potential interference-inducing sensing interlace.

[0166] Aspect 22: The method of Aspect 21, wherein the at least one previously-reserved sensing interlace comprises the potential interference-inducing sensing interlace based on at least one of a channel property or a target property associated with a transmission corresponding to the at least one previously -reserved sensing interlace.

[0167] Aspect 23 : The method of Aspect 22, wherein the channel property comprises at least one of a speed of a UE corresponding to the at least one previously -reserved sensing interlace or a Doppler measurement corresponding to the at least one previously -reserved sensing interlace.

[0168] Aspect 24: The method of either of Aspects 22 or 23, wherein the channel property comprises at least one of a distance between the UE and a UE corresponding to the at least one previously -reserved sensing interlace or a delay spread corresponding to the at least one previously-reserved sensing interlace.

[0169] Aspect 25: The method of any of Aspects 22-24, further comprising receiving sidelink control information that indicates at least one parameter value corresponding to the at least one of the channel property or the target property.

[0170] Aspect 26: The method of Aspect 25, wherein the at least one parameter value indicates at least one of a position associated with a UE corresponding to the at least one previously -reserved sensing interlace, a speed associated with the UE corresponding to the at least one previously -reserved sensing interlace, or a target return cross section associated with the at least one previously-reserved sensing interlace.

[0171] Aspect 27: The method of any of Aspects 19-26, wherein the reservation communication indicates at least one parameter value indicative of at least one of a position associated with the UE, a speed associated with the UE, or a target return cross section associated with the reserved sensing interlace.

[0172] Aspect 28: The method of any of Aspects 19-27, wherein the reservation communication comprises sidelink control information.

[0173] Aspect 29: The method of any of Aspects 19-28, wherein the reservation communication comprises a medium access control control element.

[0174] Aspect 30: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of Aspects 1-18.

[0175] Aspect 31 : A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of Aspects 1-18.

[0176] Aspect 32: An apparatus for wireless communication, comprising at least one means for performing the method of one or more of Aspects 1-18.

[0177] Aspect 33 : A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of Aspects 1-18.

[0178] Aspect 34: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-18.

[0179] Aspect 35: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of Aspects 19-29.

[0180] Aspect 36: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of Aspects 19-29.

[0181] Aspect 37: An apparatus for wireless communication, comprising at least one means for performing the method of one or more of Aspects 19-29.

[0182] Aspect 38: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of Aspects 19-29.

[0183] Aspect 39: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 19-29.

[0184] The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.

[0185] Further disclosure is included in the appendix. The appendix is provided as an example only and is to be considered part of the specification. A definition, illustration, or other description in the appendix does not supersede or override similar information included in the detailed description or figures. Furthermore, a definition, illustration, or other description in the detailed description or figures does not supersede or override similar information included in the appendix. Furthermore, the appendix is not intended to limit the disclosure of possible aspects. [0186] As used herein, the term “component” is intended to be broadly construed as hardware and/or a combination of hardware and software. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and/or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a “processor” is implemented in hardware and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods are described herein without reference to specific software code, since those skilled in the art will understand that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.

[0187] As used herein, “satisfying a threshold” may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, or the like.

[0188] Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. As used herein, a phrase referring to “at least one of’ a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a + b, a + c, b + c, and a + b + c, as well as any combination with multiples of the same element (e.g., a + a, a + a + a, a + a + b, a + a + c, a + b + b, a + c + c, b + b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c).

[0189] No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has,” “have,” “having,” or the like are intended to be open-ended terms that do not limit an element that they modify (e.g., an element “having” A may also have B). Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or,” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of’).