Directional sensing signal request

Abstract

Various aspects of this disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a first sensing signal transmitted by a base station. The UE may determine a preferred sensing direction for a second sensing signal based at least in part on the first sensing signal. The UE may send a directional sensing signal request to the base station. The directional sensing signal request may include information indicating the preferred sensing direction for the second sensing signal. Numerous other aspects are provided.

Description

Technical Field

[0001] In general, aspects of this disclosure relate to wireless communication, and more specifically, aspects of this disclosure relate to techniques and apparatus associated with directional sensing signal requests. Background Technology

[0002] Wireless communication systems have been widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). 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 issued by the 3rd Generation Partnership Project (3GPP).

[0003] A wireless network may include multiple base stations (BSs), each capable of supporting communication between multiple user equipment (UEs). UEs can communicate with BSs via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmitter Receiver Point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0004] The above multiple access technologies have been adopted in various telecommunications standards to provide a universal protocol enabling different user equipment to communicate across city limits, countries, regions, and even globally. New Radio (NR), also known as 5G, is an enhancement set of the LTE mobile standard released by the 3rd Generation Partnership Project (3GPP). NR is designed to better support mobile broadband internet access by improving spectral efficiency, reducing costs, enhancing service, fully utilizing new spectrum, using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements to LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0005] In some aspects, a method of wireless communication performed by a UE includes: receiving a first sensing signal transmitted by a base station; determining a preferred sensing direction for a second sensing signal based at least in part on the first sensing signal; and sending a directional sensing signal request to the base station, the directional sensing signal request including information indicating the preferred sensing direction for the second sensing signal.

[0006] In some aspects, a method of wireless communication performed by a base station includes: transmitting a first sensing signal; receiving a directional sensing signal request from a UE, the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal; and transmitting the second sensing signal at least in part based on the directional sensing signal request.

[0007] In some aspects, a UE for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: receive a first sensing signal transmitted by a base station; determine a preferred sensing direction for a second sensing signal based at least in part on the first sensing signal; and send a directional sensing signal request to the base station, the directional sensing signal request including information indicating the preferred sensing direction for the second sensing signal.

[0008] In some aspects, a base station for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: transmit a first sensing signal; receive a directional sensing signal request from a UE, the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal; and transmit the second sensing signal at least in part based on the directional sensing signal request.

[0009] In some aspects, a non-transitory computer-readable medium storing one or more instructions for wireless communication includes: one or more instructions that, when executed by one or more processors of a UE, cause the one or more processors to perform the following operations: receiving a first sensing signal transmitted by a base station; determining a preferred sensing direction for a second sensing signal based at least in part on the first sensing signal; and sending a directional sensing signal request to the base station, the directional sensing signal request including information indicating the preferred sensing direction for the second sensing signal.

[0010] In some aspects, a non-transitory computer-readable medium storing one or more instructions for wireless communication includes: one or more instructions, when executed by one or more processors of a base station, causing the one or more processors to perform the following operations: transmitting a first sensing signal; receiving a directional sensing signal request from a UE, the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal; and transmitting the second sensing signal at least in part based on the directional sensing signal request.

[0011] In some aspects, an apparatus for wireless communication includes: a unit for receiving a first sensing signal transmitted by a base station; a unit for determining a preferred sensing direction for a second sensing signal based at least in part on the first sensing signal; and a unit for transmitting a directional sensing signal request to the base station, the directional sensing signal request including information indicating the preferred sensing direction for the second sensing signal.

[0012] In some aspects, an apparatus for wireless communication includes: a unit for transmitting a first sensing signal; a unit for receiving a directional sensing signal request from a UE, the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal; and a unit for transmitting the second sensing signal at least in part based on the directional sensing signal request.

[0013] Aspects of this document generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices and / or processing systems, as fully described with reference to the accompanying drawings and description, and as illustrated in the accompanying drawings and description.

[0014] To better understand the following detailed description, the features and technical advantages of the examples according to this disclosure have been generally summarized above. Further features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures to perform the same purpose as this disclosure. These equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (regarding their organization and operation) and the associated advantages will be better understood when considering the following detailed description in conjunction with the accompanying drawings. Each of these drawings is provided for illustrative and descriptive purposes only and is not intended to limit the invention. Attached Figure Description

[0015] To gain a detailed understanding of the features described above in this disclosure, this application provides a more specific description of some aspects with reference to the above brief summary, some of which are illustrated in the accompanying drawings. However, it should be noted that since the description of the invention allows for other equivalent and effective aspects, these drawings merely depict certain typical aspects of this disclosure and should not be considered as limiting the scope of protection of the invention. The same reference numerals in different drawings may identify the same or similar elements.

[0016] Figure 1 This is a diagram illustrating an example of a wireless network based on various aspects of this disclosure.

[0017] Figure 2 This is a diagram illustrating an example of communication between a base station and a UE in a wireless network, based on various aspects of this disclosure.

[0018] Figure 3A and Figure 3B This is a diagram illustrating examples associated with a directional sensing signal request, based on various aspects of this disclosure.

[0019] Figure 4A and Figure 4B The diagram illustrates other examples associated with a directional sensing signal request, based on various aspects of this disclosure.

[0020] Figure 5 and Figure 6 This is a diagram illustrating example processing associated with a directional sensing signal request, based on various aspects of this disclosure. Detailed Implementation

[0021] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as limited to any particular structure or function given throughout this disclosure. Rather, these aspects are provided only to make this disclosure thorough and complete, and to fully convey the scope of protection of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art should understand that the scope of this disclosure is intended to cover any aspect of the disclosure herein, whether implemented independently or in combination with any other aspect of this disclosure. For example, an apparatus or method may be implemented using any number of the aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods that may be implemented using other structures, functions, or structures and functions other than those set forth herein, or structures and functions different from those set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more components of the invention.

[0022] The following describes some aspects of a telecommunications system with reference to various devices and techniques. These devices and techniques will be described in the following detailed embodiments and depicted in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0023] It should be noted that although this document uses terms commonly associated with 5G or NR radio access technology (RAT) to describe the aspects, the aspects of this disclosure may also be applied to other RATs (e.g., 3G RAT, 4G RAT and / or RATs after 5G (e.g., 6G)).

[0024] Figure 1This diagram illustrates an example of a wireless network 100 in accordance with various aspects of this disclosure. The wireless network 100 may be a 5G (NR) network, an LTE network, etc., or may include elements of a 5G (NR) network, an LTE network, etc. The wireless network 100 may include multiple base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE), and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, Transmitter Receiver Point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, depending on the context in which the term "cell" is used, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area.

[0025] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers), allowing unrestricted access for UEs with service subscriptions. A picocell can cover a relatively small geographic area, allowing unrestricted access for UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a home), allowing restricted access for UEs associated with that femtocell (e.g., UEs in a closed user group (CSG)). A BS used for macrocells can be called a macro BS. A BS used for picocells can be called a pico BS. A BS used for femtocells can be called a femto BS or a home BS. Figure 1 In the example shown, BS110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably in this document.

[0026] In some respects, the cell does not need to be stationary; the geographical area of ​​the cell can move depending on the location of the mobile BS. In some respects, BSs can use any suitable transport network to interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections or virtual networks).

[0027] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and transmit those data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions from other UEs. Figure 1 In the example shown, relay BS 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS can also be called a relay station, relay base station, repeater, etc.

[0028] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) (e.g., macro BSs, pico BSs, femto BSs, repeater BSs, etc.). These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have higher transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and repeater BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0029] Network controller 130 can be coupled to a group of base stations (BSs) and provide coordination and control for these BSs. Network controller 130 can communicate with these BSs via backhaul. These BSs can also communicate with each other, for example, directly or indirectly via wireless or wired backhaul communication links.

[0030] UEs 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, user unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), 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 device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biosensor / device, a wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music device or video device or satellite radio device), an in-vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0031] Some UEs can be considered as Machine-Type Communication (MTC) UEs or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC UEs and eMTC UEs include robots, drones, remote devices, sensors, meters, monitors, location tags, etc., capable of communicating with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes can provide connectivity to networks (e.g., wide area networks such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 can be included in a housing that houses the components of UE 120 (e.g., processor components, memory components, etc.). In some aspects, the processor components and memory components can be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) can be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, etc.

[0032] Typically, any number of wireless networks can be deployed within a given geographical area. Each wireless network can support a specific Radio Access Platform (RAT) and operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT within a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0033] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more lateral link channels (e.g., without using base station 110 as an intermediary device). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicular (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this case, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein that are performed by base station 110.

[0034] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1) (which can span from 410 MHz to 7.125 GHz), and / or can communicate using an operating band with a second frequency range (FR2) (which can span from 24.25 GHz to 52.6 GHz). The frequencies between FR1 and FR2 are generally referred to as intermediate frequency (IF) bands. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the “sub-6 GHz” band. Similarly, FR2 is often referred to as the “millimeter wave” band, although it differs from the Extremely High Frequency (EHF) band (30 GHz–300 GHz) recognized as a “millimeter wave” band by the International Telecommunication Union (ITU). Therefore, unless otherwise explicitly stated, it should be understood that the terms "sub-6 GHz," etc. (if used herein), can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequency (e.g., greater than 7.125 GHz). Similarly, unless otherwise explicitly stated, it should be understood that the terms "millimeter wave," etc. (if used herein), can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequency (e.g., less than 24.25 GHz). The frequencies included in FR1 and FR2 can be modified, and the techniques described herein can be applied to these modified frequency ranges.

[0035] As indicated above, Figure 1 Examples are provided. Other examples can be found in the reference. Figure 1 The examples described are different.

[0036] Figure 2 This is a diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100, based on various aspects of this disclosure. The base station 110 may be equipped with T-type antennas 234a to 234t, and the UE 120 may be equipped with R-type antennas 252a to 252r, wherein typically T ≥ 1 and R ≥ 1.

[0037] At base station 110, transmit processor 220 can receive data from data source 212 intended for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from each UE, process the data for each UE (e.g., coding and modulation) based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper-layer signaling, etc.), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS), demodulation reference signals (DMRS), etc.) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​these data symbols, control symbols, overhead symbols, and / or reference symbols (if any), and provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can also process the output sample stream (e.g., convert to analog signal, amplify, filter, and up-convert) to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively.

[0038] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations, and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 can also process these input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection (if any) on the received symbols, and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) the detected symbols, can provide decoded data for UE 120 to data sink 260, and can provide decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine the Received Reference Signal Power (RSRP), Received Signal Strength Indicator (RSSI), Received Reference Signal Quality (RSRQ), Channel Quality Indicator (CQI), and so on. In some respects, one or more components of the UE 120 may be included in the housing 284.

[0039] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0040] On the uplink, at UE 120, transmit processor 264 can receive data from data source 262, receive control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from controller / processor 280, and process the data and control information. Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 can be pre-coded (if any) by TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted back to base station 110. In some aspects, UE 120 includes a transceiver. This transceiver can include any combination of antenna 252, modulator and / or demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver can be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as referenced. Figure 3A , 3B As described in 4A, 4B, 5 and 6.

[0041] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if any), and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide decoded data to data sink 239 and decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and can communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule downlink and / or uplink communication by UE 120. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antenna 234, modulator and / or demodulator 232, MIMO detector 236, receiver processor 238, transmitter processor 220, and / or TX MIMO processor 230. The transceiver can be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as referenced. Figure 3A , 3B As described in 4A, 4B, 5 and 6.

[0042] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other components may perform one or more techniques associated with a directional sensing signal request, as described in further detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can perform or direct, for example Figure 5 Processing 500 Figure 6 The processing 600 and / or other processing as described herein. Memory 242 and memory 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code, program code, etc.) for wireless communication. For example, when said one or more instructions are executed by one or more processors of base station 110 and / or UE 120 (e.g., directly or after compilation, translation, interpretation, etc.), said one or more processors, UE 120 and / or base station 110 may be caused to perform or direct, for example... Figure 5 Processing 500 Figure 6 The processing of 600 and / or other processing operations described herein. In some aspects, the execution instructions may include run instructions, translation instructions, compilation instructions, interpretation instructions, and so on.

[0043] In some aspects, a receiver such as UE 120 or base station 110 may include: a unit for receiving a first sensing signal transmitted by a sensing signal transmitter; a unit for determining a preferred sensing direction for a second sensing signal based at least in part on the first sensing signal; a unit for transmitting a directional sensing signal request to the sensing signal transmitter, the directional sensing signal request including information indicating a preferred sensing direction for the second sensing signal, and so on. In some aspects, when the receiver includes UE 120, these units may include combinations of... Figure 2 The described UE 120 includes one or more components, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc. In some aspects, when the receiver includes base station 110, these units may include combinations of... Figure 2 One or more components of the described base station 110, such as antenna 234, DEMOD 232, MIMO detector 236, receiver processor 238, controller / processor 240, transmitter processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.

[0044] In some aspects, a transmitter such as UE 120 or base station 110 may include: a unit for transmitting a first sensing signal; a unit for receiving a directional sensing signal request from a sensing signal receiver, the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal; a unit for transmitting a second sensing signal at least in part based on the directional sensing signal request, and so on. In some aspects, when the transmitter includes UE 120, these units may include combinations of... Figure 2 The described UE 120 includes one or more components, such as controller / processor 280, transmit processor 264, TXMIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc. In some aspects, when the transmitter includes base station 110, these units may include combinations of... Figure 2 One or more components of the described base station 110, such as antenna 234, DEMOD 232, MIMO detector 236, receiver processor 238, controller / processor 240, transmitter processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.

[0045] Despite Figure 2 The boxes in the diagram represent different components, but the functions described above with respect to these boxes can be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by controller / processor 280, or under the control of controller / processor 260.

[0046] As indicated above, Figure 2 Examples are provided. Other examples can be found in the reference. Figure 2 The examples described are different.

[0047] Some wireless networks may use wireless communication devices to jointly perform sensing and communication services (sometimes referred to as joint SensComm services). Sensing services may include object detection, which can be used to improve communication services or other services, for example. For instance, a UE receiving sensing signals can use them to detect objects for services such as driver assistance services, autonomous vehicle services, and so on. In practice, joint SensComm can offer numerous advantages, such as lower cost with additional services (e.g., reuse of NR infrastructure), reduced device size, reduced power consumption, spectrum sharing, improved performance (e.g., improved coverage and / or improved resolution), improved security (e.g., due to enhanced information sharing), and so on.

[0048] In some deployments, passive sensing (also known as bistatic or multistatic sensing) can be used to provide sensing services. In a passive sensing scheme, a transmitter (e.g., a terrestrial broadcast transmitter, a cellular communication transmitter, etc.) can be configured to opportunistically transmit sensing signals, and the receiver can be located remotely from the transmitter. In a passive sensing scenario, when the transmitter transmits a sensing signal, the receiver can receive a line-of-sight (LoS) signal (i.e., the receiver can receive the sensing signal directly from the transmitter without experiencing reflections) and one or more signals reflected from one or more objects (i.e., the receiver can receive the sensing signal after it has been reflected from one or more objects). Here, the LoS signal can be used as a reference signal and can be correlated with one or more reflected signals in association with the detected object. For example, the delay derived from the maximum correlation value associated with a given reflected signal defines an ellipse that describes the possible positions of an object relative to the transmitter and receiver. It is worth noting that a passive sensing scheme differs from a single static scheme in that, in a single static scheme, the transmitter and receiver are located in the same location (e.g., on the same wireless communication device). In some cases, multi-node passive sensing schemes can be used (e.g., schemes in which multiple transmitters each transmit sensing signals for reception by a specific remote receiver). Multi-node passive sensing schemes can provide, for example, enhanced spatial diversity, improved angular resolution, improved target identifiability (e.g., for low-Doppler targets), and so on.

[0049] In practice, sensing resolution can be improved by increasing the radio resources used for the sensing signal (e.g., by increasing the bandwidth in the frequency domain, by increasing the period in the time domain, etc.). However, it may be desirable to limit the frequency, time, and / or spatial resources used for the sensing signal in order to, for example, ensure that sufficient resources are available for communication signals. Therefore, using, for example, ultra-wideband signals for sensing may be impractical in most cases.

[0050] The aspects described herein provide techniques and apparatus associated with a directional sensing signal request. In some aspects, a receiver may receive a first sensing signal transmitted by a transmitter and may determine a preferred sensing direction for a second sensing signal based at least in part on the first sensing signal. Here, the preferred sensing direction may correspond to the direction of a possible object detected at least in part based on the first sensing signal. In some aspects, the receiver may transmit a directional sensing signal request to the transmitter (e.g., via a communication link), wherein the directional sensing signal request includes information indicating a preferred sensing direction for the second sensing signal. The transmitter may then transmit a second signal based at least in part on the directional sensing signal request, and the receiver may receive the second sensing signal accordingly.

[0051] In some aspects, a directional sensing signal request can be used to indicate a preferred multipath and / or preferred beam direction determined by the receiver at least in part based on a first sensing signal. Based at least in part on this request, the transmitter can transmit a refined sensing signal (e.g., using an ultra-wideband and / or one or more relatively narrow beams), and the receiver can receive it, wherein the refined sensing signal allows the receiver to achieve improved resolution associated with the sensed object. That is, the beam of the second sensing signal can be relatively narrower than the beam of the first sensing signal, meaning that an initial sensing can be performed using a relatively coarse beam, while further sensing can be performed using a relatively fine beam.

[0052] It is worth noting that the term "sensing signal" as used in this article can refer to signals that can be used for target detection, object detection, and so on.

[0053] Figure 3A and 3B This is a diagram illustrating an example 300 associated with a directional sensing signal request using a delay-tap-based method, in accordance with various aspects of this disclosure. Figure 3A and Figure 3B As shown, Example 300 includes a transmitter (e.g., base station 110, UE 120, etc.) and a receiver (e.g., UE 120, base station 110, etc.). As further shown in the figure, an object can be positioned relative to the transmitter and receiver, allowing the receiver to detect the object at least partially based on sensing signals transmitted by the transmitter. It is worth noting that while a passive sensing scheme is shown in Example 300, the techniques described in conjunction with Example 300 can be applied to other types of sensing schemes, such as multi-node passive sensing schemes or active (i.e., single static) sensing schemes.

[0054] like Figure 3AAs shown by reference numeral 302 in the attached figure, the transmitter can transmit a first sensing signal. In some aspects, the first sensing signal can be a signal for object detection (rather than a signal for communication). In some aspects, the first sensing signal can be a pulse signal, a frequency-modulated continuous wave (FMCW) signal, a phase-modulated continuous wave (PMCW) signal, and / or another type of signal that can be used for object detection. As shown in Example 300, in some aspects, the first sensing signal can be transmitted with a relatively small bandwidth and / or a relatively wide beam (e.g., relatively wide spatial coverage). In some aspects, transmitting a first sensing signal with a relatively small bandwidth and / or a relatively wide beam allows the receiver to detect possible objects in one or more delay taps. However, the achievable range resolution may be relatively low (e.g., 10 meters). That is, the first sensing signal enables the receiver to observe one or more possible objects in one or more delay taps, but the range resolution of said one or more possible objects may be poor (making fine sensing undesirable). In Example 300, as... Figure 3A As shown by reference numeral 302r in the attached figure, a first sensing signal (e.g., a portion of the first sensing signal) is reflected by an object, such that a receiver receives the first sensing signal (e.g., at least a portion of the first sensing signal).

[0055] As indicated by reference numeral 304 in the accompanying drawings, the receiver can determine a preferred sensing direction for a second sensing signal based at least in part on a first sensing signal. In some aspects, this preferred sensing direction corresponds to the orientation of a possible object detected at least in part based on the first sensing signal. In some aspects, this preferred sensing direction can be used in conjunction with the transmitter transmitting the second sensing signal to achieve fine sensing of the object, as described below. In example 300, this preferred sensing direction corresponds to the orientation of the object (e.g., its spatial orientation relative to the receiver). In some aspects, the receiver can detect the object and determine its orientation based at least in part on the first sensing signal (e.g., by processing the first sensing signal according to an object detection algorithm configured on the receiver).

[0056] As indicated by reference numeral 306 in the accompanying drawings, the receiver may send a directional sensing signal request, and the transmitter may receive it. In some aspects, the directional sensing signal request includes information indicating a preferred sensing direction for a second sensing signal. In some aspects, the receiver may send the directional sensing signal request via a communication link between the receiver and the transmitter (e.g., a wireless communication link between the receiver and the transmitter), and the transmitter may receive it.

[0057] In some aspects, the information used to indicate a preferred sensing direction for the second sensing signal may include precoded information associated with one or more delay tap indices. Here, each of the one or more delay tap indices is associated with a corresponding delay tap in a set of delay taps. For example, in Example 300, a delay tap corresponding to an object (e.g., the path of the first sensing signal from the transmitter to the object to the receiver) may be associated with a specific delay tap index. Here, the information used to indicate a preferred sensing direction may include precoded information associated with the delay tap index. In some aspects, the information used to indicate a preferred sensing direction may include one or more delay tap indices, each associated with a different delay tap. In some aspects, each delay tap index may be associated with a corresponding observation in a different time-domain resource within the observation set of the first sensing signal. That is, in some aspects, the receiver may provide precoded information about one or more delay tap indices, wherein the multiple delay tap indices correspond to multiple sensing signal observations acquired in different resources in the time domain.

[0058] In some aspects, the precoding information may include a set of precoding matrix indicators (PMIs) determined at least in part based on a Type II Channel State Information (CSI) codebook (e.g., a Version 16 Type II CSI codebook). In some aspects, each PMI in this set may be associated with a corresponding delay tap in a set of delay taps. That is, in some aspects, delay tap-specific PMIs (e.g., at least in part based on a Version 16 Type II CSI codebook) may be used, where the receiver is able to determine the delay taps to be reported in the CSI report (i.e., by removing a sliding window over the Discrete Fourier Transform (DFT) basis). Notably, this differs from Version 16 Type II CSI, where the base station is always able to use a sliding window over the DFT basis to determine the number of delay taps the UE can report. In some aspects, the quantization granularity of each delay tap in the delay tap set may be at least in part based on the number of delay taps in the delay tap set. That is, the receiver may determine the quantization granularity of each delay tap based at least in part on the number of delay taps the receiver will report. It is worth noting that this also differs from Version 16 Type II CSI, where the quantization granularity and the number of delay taps to be reported are fixed by the base station.

[0059] like Figure 3BAs shown by reference numeral 308 in the accompanying drawings, the transmitter may determine one or more parameters for the second sensing signal, at least in part, based on a directional sensing signal request. For example, the one or more parameters may include: the spatial orientation of the second sensing signal, the bandwidth of the second sensing signal, the beam coverage of the second sensing signal, and so on. In some aspects, the transmitter may determine one or more parameters of the second sensing signal, at least in part, based on a preferred sensing direction indicated by the directional sensing signal request.

[0060] As indicated by reference numeral 310 in the attached figure, the transmitter can transmit a second sensing signal. In some aspects, the second sensing signal can be a signal used for fine object detection (compared to the first sensing signal). In some aspects, the second sensing signal can be a pulse signal, an FMCW signal, a PMCW signal, and / or another type of signal that can be used for object detection. In some aspects, the bandwidth of the second sensing signal can be greater than the bandwidth of the first sensing signal. For example, the first sensing signal can be transmitted with a narrow bandwidth, while the second sensing signal can be transmitted with an ultra-wide bandwidth. In some aspects, the second sensing signal can be relatively narrower than the first sensing signal. That is, in some aspects, the beam coverage of the second sensing signal may be narrower than the beam coverage of the first sensing signal, as compared to... Figure 3A and 3B As indicated.

[0061] In some respects, the second sensing signal can be transmitted with a relatively large bandwidth and / or a relatively narrow beam (e.g., relatively narrow spatial coverage). In some respects, the second sensing signal transmitted with a relatively large bandwidth and / or a relatively narrow beam provides improved range resolution (e.g., 1 meter) compared to the first sensing signal. That is, the second sensing signal enables the receiver to observe one or more objects with improved range resolution. In Example 300, as shown by reference numeral 310r, the second sensing signal (e.g., a portion of the second sensing signal) is reflected by an object, such that the receiver receives the second sensing signal (e.g., at least a portion of the second sensing signal). The receiver can then process the second sensing signal accordingly in association with information that determines its association with the object.

[0062] As indicated above, provide Figure 3A and Figure 3B As an example. Other examples can be found in the reference. Figure 3A and Figure 3B The examples described are different.

[0063] In some respects, a delay-tap-based approach, as described above, can be used in conjunction with a request to provide a directional sensing signal. In other respects, a beam-index-based approach can be used. Figure 4A and Figure 4BThis is a diagram illustrating an example 400 associated with a directional sensing signal request using a beam index-based method, based on various aspects of this disclosure.

[0064] like Figure 4A and Figure 4B As shown, Example 400 includes a transmitter (e.g., base station 110, UE 120, etc.) and a receiver (e.g., UE 120, base station 110, etc.) and an object positioned relative to the transmitter and receiver, such that the receiver can detect the object at least in part based on sensing signals transmitted by the transmitter. It is worth noting that while a passive sensing scheme is shown in Example 400, the techniques described in conjunction with Example 400 can be applied to another type of sensing scheme, such as a multi-node passive sensing scheme or an active (i.e., single static) sensing scheme.

[0065] like Figure 4A As indicated by reference numeral 402 in the accompanying drawings, the transmitter can transmit a first sensing signal. In some aspects, as described above, the first sensing signal can be a signal for object detection (rather than a signal for communication). As shown in Example 400, in some aspects, the first sensing signal can be transmitted such that it is rotated across multiple beams over a period of time (e.g., via a CSI reference signal, a synchronization signal block, another reference signal, etc.). As indicated in Example 400, each of the multiple beams associated with the first sensing signal can have a different spatial orientation. In Example 400, as... Figure 4A As shown by reference numeral 402r in the attached figure, a first sensing signal (e.g., a portion of the first sensing signal) is reflected by an object, such that a receiver receives the first sensing signal (e.g., at least a portion of the first sensing signal).

[0066] As indicated by reference numeral 404 in the accompanying drawings, the receiver can determine the preferred sensing direction for the second sensing signal based at least in part on the first sensing signal. In some aspects, the receiver can determine the preferred sensing direction in the manner described above in conjunction with Example 300.

[0067] As indicated by reference numeral 406 in the accompanying drawings, the receiver may send a directional sensing signal request, and the transmitter may receive it. In some aspects, the directional sensing signal request includes information indicating a preferred sensing direction for a second sensing signal. In some aspects, the receiver may send the directional sensing signal request via a communication link between the receiver and the transmitter (e.g., a wireless communication link between the receiver and the transmitter), and the transmitter may receive it.

[0068] In some aspects, the information used to indicate a preferred sensing direction for the second sensing signal may include a beam index, wherein the beam index corresponds to a specific one of a plurality of beams of the first sensing signal. In some aspects, the beam index identifies a beam having a preferred sensing direction, such that by including the beam index in a directional sensing signal request, the receiver indicates a preferred sensing direction for the second sensing signal. In some aspects, the directional sensing signal request may include one or more beam indices.

[0069] like Figure 4B As shown by reference numeral 408 in the accompanying drawings, the transmitter can determine one or more parameters for the second sensing signal, at least in part, based on a directional sensing signal request. In some aspects, the transmitter can determine one or more parameters for the second sensing signal, at least in part, based on a beam index. For example, the transmitter can identify a beam indicated by the directional sensing signal request and can identify one or more parameters for the second sensing signal (e.g., such that the second sensing signal has one or more characteristics that match the characteristics of the beam) at least in part based on the identified beam.

[0070] As indicated by reference numeral 410, the transmitter can transmit a second sensing signal. In some aspects, as described above, the second sensing signal can be a signal for fine object detection (compared to the first sensing signal). In some aspects, the second sensing signal can be transmitted such that its direction is constant over a period of time. In Example 400, as indicated by reference numeral 410r, the second sensing signal (e.g., a portion of the second sensing signal) is reflected by an object, causing the receiver to receive the second sensing signal (e.g., at least a portion of the second sensing signal). The receiver can then process the second sensing signal accordingly in connection with determining information associated with the object.

[0071] As indicated above, provide Figure 4A and Figure 4B As an example. Other examples can be found in the reference. Figure 4A and Figure 4B The examples described are different.

[0072] Figure 5 This diagram illustrates, for example, an example process 500 performed by a receiver, in accordance with various aspects of this disclosure. Example process 500 is an example of an operation performed by a receiver (e.g., UE 120, base station 110, etc.) in connection with a directional sensing signal request.

[0073] like Figure 5As shown, in some aspects, processing 500 may include receiving a first sensing signal transmitted by a transmitter (block 510). For example, a receiver may (e.g., when the receiver is UE 120, using a receiver processor 258, a controller / processor 280, a memory 282, etc.; when the receiver is base station 110, using a receiver processor 238, a controller / processor 240, a memory 242, etc.) receive the first sensing signal transmitted by a transmitter (e.g., base station 110, UE 120, etc.), as described above.

[0074] like Figure 5 As further shown, in some aspects, processing 500 may include determining a preferred sensing direction for a second sensing signal based at least in part on a first sensing signal (block 520). For example, a receiver may (e.g., when the receiver is UE 120, using a receiver processor 258, a transmitter processor 264, a controller / processor 280, a memory 282, etc.; when the receiver is base station 110, using a transmitter processor 220, a receiver processor 238, a controller / processor 240, a memory 242, etc.) determine the preferred sensing direction for the second sensing signal based at least in part on the first sensing signal, as described above.

[0075] like Figure 5 As further shown, in some aspects, processing 500 may include sending a directional sensing signal request to a transmitter, the directional sensing signal request including information indicating a preferred sensing direction for the second sensing signal (block 530). For example, a receiver may send a directional sensing signal request to a transmitter, the directional sensing signal request including information indicating a preferred sensing direction for the second sensing signal, as described above, when the receiver is UE 120, using a transmitter processor 264, a controller / processor 280, a memory 282, etc.; when the receiver is base station 110, using a transmitter processor 220, a controller / processor 240, a memory 242, etc.

[0076] Processing 500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other aspects of processing described elsewhere in this document.

[0077] In a first aspect, processing 500 includes: receiving the second sensing signal after sending the directional sensing signal request.

[0078] In a second aspect, either alone or in combination with the first aspect, the bandwidth of the first sensing signal is less than the bandwidth of the second sensing signal.

[0079] In a third aspect, either alone or in combination with one or more of the first and second aspects, the beam coverage of the first sensing signal is wider than the beam coverage of the second sensing signal.

[0080] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the information used to indicate the preferred sensing direction for the second sensing signal includes precoded information associated with one or more delay tap indices, each of the one or more delay tap indices being associated with a corresponding delay tap in a set of delay taps.

[0081] In the fifth aspect, individually or in combination with one or more of the first to fourth aspects, each of the one or more delay tap indices is associated with a corresponding observation in a different time-domain resource in the observation set of the first sensed signal.

[0082] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the precoding information includes a set of PMIs determined at least in part based on the Type II CSI codebook, each PMI in the set being associated with a corresponding delay tap in the set of delay taps.

[0083] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the quantization granularity of each delay tap in the delay tap set is at least partially based on the number of delay taps in the delay tap set.

[0084] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the first sensing signal is rotated across a plurality of beams in the time domain, each of the plurality of beams having a different spatial orientation.

[0085] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the information for indicating the preferred sensing direction for the second sensing signal includes one or more beam indices, each of the one or more beam indices corresponding to one of the plurality of beams.

[0086] Although Figure 5 An exemplary box for handling 500 is shown, but in some respects, it differs from... Figure 5 Compared to what is described in [the original text], processing 500 may include additional boxes, fewer boxes, different boxes, or boxes arranged differently. Alternatively or concurrently, two or more boxes in processing 500 may be executed in parallel.

[0087] Figure 6This diagram illustrates, for example, an example process 600 performed by a transmitter, in accordance with various aspects of this disclosure. Example process 600 is an example of an operation performed by a transmitter (e.g., base station 110, UE 120, etc.) in connection with a directional sensing signal request.

[0088] like Figure 6 As shown, in some aspects, processing 600 may include transmitting a first sensing signal (block 610). For example, a transmitter may transmit the first sensing signal (e.g., when the transmitter is base station 110, using transmitter processor 220, controller / processor 240, memory 242, etc.; when the transmitter is UE 120, using transmitter processor 264, controller / processor 280, memory 282, etc.) as described above.

[0089] like Figure 6 As further shown, in some aspects, process 600 may include receiving a directional sensing signal request from a receiver, the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal (block 620). For example, a transmitter may (e.g., when the transmitter is base station 110, using receiver processor 238, controller / processor 240, memory 242, etc.; when the transmitter is UE 120, using receiver processor 258, controller / processor 280, memory 282, etc.) receive the directional sensing signal request from the receiver, the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal, as described above.

[0090] like Figure 6 As further shown, in some aspects, processing 600 may include transmitting a second sensing signal at least in part based on a directional sensing signal request (block 630). For example, the transmitter may (e.g., when the transmitter is base station 110, using transmitter processor 220, controller / processor 240, memory 242, etc.; when the transmitter is UE 120, using transmitter processor 264, controller / processor 280, memory 282, etc.) transmit the second sensing signal at least in part based on a directional sensing signal request, as described above.

[0091] Processing 600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other aspects of processing described elsewhere in this document.

[0092] In a first aspect, the bandwidth of the first sensing signal is less than the bandwidth of the second sensing signal.

[0093] In a second aspect, either alone or in combination with the first aspect, the beam coverage of the first sensing signal is wider than the beam coverage of the second sensing signal.

[0094] In a third aspect, either alone or in combination with one or more of the first and second aspects, the information used to indicate the preferred sensing direction for the second sensing signal includes precoded information associated with one or more delay tap indices, each of the one or more delay tap indices being associated with a corresponding delay tap in a set of delay taps.

[0095] In the fourth aspect, individually or in combination with one or more of the first to third aspects, each of the one or more delay tap indices is associated with a corresponding observation in a different time-domain resource in the observation set of the first sensed signal.

[0096] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the precoding information includes a set of PMIs determined at least in part based on the Type II CSI codebook, each PMI in the set being associated with a corresponding delay tap in the set of delay taps.

[0097] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the quantization granularity of each delay tap in the delay tap set is at least partially based on the number of delay taps in the delay tap set.

[0098] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the first sensing signal is rotated across a plurality of beams in the time domain, each of the plurality of beams having a different spatial orientation.

[0099] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the information for indicating the preferred sensing direction for the second sensing signal includes one or more beam indices, each of the one or more beam indices corresponding to one of the plurality of beams.

[0100] Although Figure 6 An exemplary box for processing 600 is shown, but in some respects, it differs from... Figure 6 Compared to what is described in [the original text], process 600 may include additional boxes, fewer boxes, different boxes, or boxes arranged differently. Alternatively or concurrently, two or more boxes in process 600 may be executed in parallel.

[0101] The above disclosure provides illustrative and descriptive information, but is not exhaustive, nor does it limit these aspects to the precise form disclosed. Modifications and variations can be made based on the above disclosure, or modifications and variations can be derived from practice in these areas.

[0102] As used herein, the term "component" is intended to be interpreted broadly as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using a combination of hardware, firmware, and / or hardware and software. It is evident that the systems and / or methods described herein can be implemented using various forms of hardware, firmware, and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, since the operation and performance of these systems and / or methods are described without reference to specific software code, it should be understood that software and hardware for implementing these systems and / or methods can be designed, at least in part, based on the descriptions herein.

[0103] As used in this article, depending on the context, satisfying the threshold can refer to a value that is 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, etc.

[0104] Although combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the aspects. In fact, many of these features can be combined in ways not specifically set forth in the claims and / or not disclosed in the specification. While each dependent claim listed below may directly depend on only one claim, the disclosure of an aspect includes every dependent claim in combination with every other claim in the group of claims. The phrase “at least one of” refers to any combination of these items (including a single member). For example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0105] No element, action, or instruction used in this application should be construed as critical or fundamental unless explicitly stated otherwise. Furthermore, 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.” Furthermore, as used herein, the article “the” is intended to include one or more items referenced in conjunction with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “containing,” “having,” “including,” etc., are intended to be open-ended terms. Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Furthermore, as used herein, the term “and / or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or” unless otherwise explicitly stated (e.g., if used in conjunction with “any” or “only one of”).

Claims

1. A method for wireless communication performed by a user equipment (UE), comprising: Receive the first sensing signal sent by the network entity; The preferred sensing direction for the second sensing signal is determined at least in part based on the first sensing signal; as well as A directional sensing signal request is sent to the network entity. The directional sensing signal request includes information indicating the preferred sensing direction for the second sensing signal, wherein the information indicating the preferred sensing direction for the second sensing signal includes pre-coded information associated with one or more delay tap indices, each of the one or more delay tap indices being associated with a corresponding delay tap in a set of delay taps, and wherein each of the one or more delay tap indices is associated with a corresponding observation in a different time-domain resource in the observation set of the first sensing signal.

2. The method according to claim 1, further comprising: The second sensing signal is received after the directional sensing signal request is sent.

3. The method according to claim 1, wherein, The bandwidth of the first sensing signal is less than the bandwidth of the second sensing signal.

4. The method according to claim 1, wherein, The beam coverage of the first sensing signal is wider than that of the second sensing signal.

5. The method according to claim 1, wherein, The precoding information includes a set of precoding matrix indicators (PMIs) determined at least in part based on a Type II Channel State Information (CSI) codebook, each PMI in the set being associated with a corresponding delay tap in the set of delay taps.

6. The method according to claim 5, wherein, The quantization granularity of each delay tap in the delay tap set is at least partially based on the number of delay taps in the delay tap set.

7. The method according to claim 1, wherein, The first sensing signal rotates across multiple beams in the time domain, each of which has a different spatial orientation.

8. The method according to claim 7, wherein, The information used to indicate the preferred sensing direction for the second sensing signal includes one or more beam indices, each of the one or more beam indices corresponding to one of the plurality of beams.

9. A method for wireless communication performed by a network entity, comprising: Send the first sensing signal; Receive a directional sensing signal request from a user equipment (UE), the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal; as well as The second sensing signal is transmitted at least in part based on the directional sensing signal request, wherein the information indicating the preferred sensing direction for the second sensing signal includes precoded information associated with one or more delay tap indices, each of the one or more delay tap indices being associated with a corresponding delay tap in a set of delay taps, and wherein each of the one or more delay tap indices is associated with a corresponding observation in a different time-domain resource in the observation set of the first sensing signal.

10. The method according to claim 9, wherein, The bandwidth of the first sensing signal is less than the bandwidth of the second sensing signal.

11. The method according to claim 9, wherein, The beam coverage of the first sensing signal is wider than that of the second sensing signal.

12. The method according to claim 9, wherein, The precoding information includes a set of precoding matrix indicators (PMIs) determined at least in part based on a Type II Channel State Information (CSI) codebook, each PMI in the set being associated with a corresponding delay tap in the set of delay taps.

13. The method according to claim 12, wherein, The quantization granularity of each delay tap in the delay tap set is at least partially based on the number of delay taps in the delay tap set.

14. The method according to claim 9, wherein, The first sensing signal rotates across multiple beams in the time domain, each of which has a different spatial orientation.

15. The method according to claim 14, wherein, The information used to indicate the preferred sensing direction for the second sensing signal includes one or more beam indices, each of the one or more beam indices corresponding to one of the plurality of beams.

16. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors are operatively coupled to the memory, and the memory and the one or more processors are configured to: Receive the first sensing signal sent by the network entity; The preferred sensing direction for the second sensing signal is determined at least in part based on the first sensing signal; and A directional sensing signal request is sent to the network entity. The directional sensing signal request includes information indicating the preferred sensing direction for the second sensing signal, wherein the information indicating the preferred sensing direction for the second sensing signal includes pre-coded information associated with one or more delay tap indices, each of the one or more delay tap indices being associated with a corresponding delay tap in a set of delay taps, and wherein each of the one or more delay tap indices is associated with a corresponding observation in a different time-domain resource in the observation set of the first sensing signal.

17. The UE according to claim 16, wherein, The one or more processors further receive the second sensing signal after sending the directional sensing signal request.

18. The UE according to claim 16, wherein, The bandwidth of the first sensing signal is less than the bandwidth of the second sensing signal, or the beam coverage of the first sensing signal is wider than the beam coverage of the second sensing signal.

19. The UE according to claim 16, wherein, The first sensing signal rotates across multiple beams in the time domain, each of which has a different spatial orientation.

20. The UE according to claim 19, wherein, The information used to indicate the preferred sensing direction for the second sensing signal includes one or more beam indices, each of the one or more beam indices corresponding to one of the plurality of beams.

21. A network entity for wireless communication, comprising: Memory; as well as One or more processors are operatively coupled to the memory, and the memory and the one or more processors are configured to: Send the first sensing signal; Receive a directional sensing signal request from a user equipment (UE), the directional sensing signal request including information indicating a preferred sensing direction for a second sensing signal; as well as The second sensing signal is transmitted at least in part based on the directional sensing signal request, wherein the information indicating the preferred sensing direction for the second sensing signal includes precoded information associated with one or more delay tap indices, each of the one or more delay tap indices being associated with a corresponding delay tap in a set of delay taps, and wherein each of the one or more delay tap indices is associated with a corresponding observation in a different time-domain resource in the observation set of the first sensing signal.

22. The network entity according to claim 21, wherein, The bandwidth of the first sensing signal is less than the bandwidth of the second sensing signal, or the beam coverage of the first sensing signal is wider than the beam coverage of the second sensing signal.

23. The network entity according to claim 21, wherein, The first sensing signal rotates across multiple beams in the time domain, each of which has a different spatial orientation.

24. The network entity according to claim 23, wherein, The information used to indicate the preferred sensing direction for the second sensing signal includes one or more beam indices, each of the one or more beam indices corresponding to one of the plurality of beams.

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