Cross-Link Interference (CLI) Measurements for Localization Based on Received Signal Strength Indicator (RSSI)

Abstract

Aspects of the present disclosure relate to cross-link interference (CLI) measurements for positioning based on received signal strength indicator (RSSI). An example method for wireless communication performed by a first user equipment (UE) includes: receiving, from a base station, a first message including a cross-link interference (CLI) configuration; performing, based on the CLI configuration, one or more CLI measurements associated with an uplink transmission of a second UE; receiving a second message including an uplink transmit power measurement of the second UE; determining a path loss associated with the second UE based on the one or more CLI measurements and the uplink transmit power measurement; and determining a range between a location of the first UE and a location of the second UE based on the path loss.

Description

[0001] Public domain

[0002] Aspects of the present disclosure generally relate to wireless communication and, in particular, to cross-link interference (CLI) measurements for positioning based on received signal strength indicator (RSSI).

[0003] Background

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. A typical wireless communication system may employ a multiple access technology capable of supporting 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 an enhanced set of mobile standards for the universal mobile telecommunications system (UMTS) promulgated by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless communication network may include a number of base stations (BSs) capable of supporting communication for a number of user equipments (UEs). A user equipment (UE) may communicate with a base station (BS) via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail, a BS may be referred to as a B node, gNB, access point (AP), radio head, transmission reception point (TRP), new radio (NR) BS, 5G B node, and so on.

[0006] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipments to communicate at the urban, national, regional, and even global levels. New radio (NR) (which may also be referred to as 5G) is an enhanced set of mobile standards for the LTE promulgated by the 3rd Generation Partnership Project (3GPP). NR is designed to better support mobile broadband Internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrums, and better integrating with other open standards that use orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) (CP-OFDM) on the downlink (DL), CP-OFDM and / or SC-FDM (e.g., also referred to as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and support beamforming, multiple input multiple output (MIMO) antenna technology, and carrier aggregation.

[0007] In a time division duplex (TDD) system, adjacent user equipments (UEs) may have different uplink-downlink (UL-DL) slot formats. In some examples, uplink symbols for uplink transmissions of a first UE (e.g., an attacking UE) overlap with downlink symbols for downlink transmissions of a second UE (e.g., a victim UE). In these examples, the uplink transmissions of the first UE may conflict with the downlink transmissions of the second UE. These types of UE-to-UE conflicts can be a type of cross-link interference (CLI). In some examples, a received signal strength indicator (RSSI) may be derived from CLI measurements. Location information may be derived based on the RSSI and uplink transmit power.

[0008] Overview

[0009] According to one aspect of the present disclosure, a method for wireless communication performed by a first user equipment (UE) receives a first message from a base station that includes a cross-link interference (CLI) configuration. The method also performs one or more CLI measurements associated with an uplink transmission of a second UE based on the CLI configuration. The method receives a second message that includes an uplink transmit power measurement of the second UE. The method determines a path loss associated with the second UE based on the one or more CLI measurements and the uplink transmit power measurement. The method further determines a range between a location of the first UE and a location of the second UE based on the path loss.

[0010] In another aspect of the present disclosure, a method for wireless communication performed by a UE transmits an uplink message to a base station. The method also determines an uplink transmit power for transmitting the uplink message. The method receives a measurement report indicating a received signal strength indicator (RSSI) of the uplink message. The method determines a path loss based on the RSSI and the uplink transmit power. The method further determines a path loss based on the RSSI and the uplink transmit power.

[0011] In another aspect of the present disclosure, a method for wireless communication performed by a base station transmits a first message that includes a CLI configuration to a first UE. The method also receives, from the first UE, one or more CLI measurements associated with an uplink transmission of a second UE based on the CLI configuration. The method transmits a second message that includes an uplink transmit power measurement configuration to the second UE. The method receives, from the second UE, an uplink transmit power measurement of the second UE based on transmitting the second message. The method determines a path loss associated with the second UE based on the CLI measurements and the uplink transmit power measurement. The method further determines a range between a location of the first UE and a location of the second UE based on the path loss.

[0012] Each aspect generally includes, for example, methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and processing systems that are substantially described with reference to the accompanying drawings and as illustrated in the accompanying drawings and the description.

[0013] The foregoing has outlined rather broadly the features and technical advantages of examples in accordance with the present disclosure in order to enable a better understanding of the detailed description that follows. Additional features and advantages will be described. The disclosed concepts and specific examples can be readily used as a basis for modifying or designing other structures for carrying out the same purposes as the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the disclosed concepts, both as to their organization and method of operation, as well as the associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing is provided for purposes of illustration and description and is not to be construed as defining a limitation of the claims. Brief Description of the Drawings

[0015] For a more particular understanding of the features of the present disclosure, reference may be made to the aspects, some of which are illustrated in the accompanying drawings. It should be noted, however, that the drawings illustrate only some aspects of the present disclosure and should not be considered as limiting its scope, as the description may admit of other equally effective aspects. Like reference numerals in different drawings may identify the same or similar elements.

[0016] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.

[0017] Figure 2 is a block diagram conceptually illustrating an example of a base station and a user equipment (UE) in communication in a wireless communication network in accordance with various aspects of the present disclosure.

[0018] Figure 3 is a diagram illustrating cross-link interference (CLI) in accordance with various aspects of the present disclosure.

[0019] Figure 4 is a timing diagram illustrating an example of CLI measurement in accordance with various aspects of the present disclosure.

[0020] Figure 5 is a block diagram illustrating an example of received signal strength indicator (RSSI)-based positioning in accordance with various aspects of the present disclosure.

[0021] Figure 6 is a timing diagram illustrating an example of network-based positioning in accordance with various aspects of the present disclosure.

[0022] Figure 7 is a timing diagram illustrating an example of victim UE-based positioning in accordance with various aspects of the present disclosure.

[0023] Figure 8 It is a timing diagram illustrating an example of positioning based on an attacking UE according to aspects of the present disclosure.

[0024] Figure 9A It is a timing diagram illustrating an example of received signal strength indicator (RSSI) positioning for a sidelink UE according to aspects of the present disclosure.

[0025] Figure 9B It is a timing diagram illustrating an example of RSSI positioning for a sidelink UE according to aspects of the present disclosure.

[0026] Figure 10 It is a block diagram illustrating an example of a wireless communication device supporting RSSI-based positioning according to aspects of the present disclosure.

[0027] Figure 11 It is a block diagram illustrating an example of a wireless communication device supporting RSSI-based positioning according to aspects of the present disclosure.

[0028] Figure 12 It is a block diagram illustrating an example of a wireless communication device supporting RSSI-based positioning according to aspects of the present disclosure.

[0029] Figure 13 It is a diagram illustrating an example process performed at a UE supporting RSSI-based positioning according to various aspects of the present disclosure.

[0030] Figure 14 It is a diagram illustrating an example process performed at a UE supporting RSSI-based positioning according to various aspects of the present disclosure.

[0031] Figure 15 It is a diagram illustrating an example process performed at a UE supporting RSSI-based positioning according to various aspects of the present disclosure.

[0032] Detailed description

[0033] Aspects of the present disclosure are described more fully hereinafter with reference to the accompanying drawings. However, the present disclosure may 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 present disclosure to those skilled in the art. Based on this teaching, those skilled in the art should appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure, whether implemented independently of or in combination with any other aspect of the present disclosure. For example, any number of the aspects described herein may be used to implement a device or practice a method. Additionally, the scope of the present disclosure is intended to cover such devices or methods practiced using other structures, functionality, or a combination of structures and functionality that supplement or are additional to the various aspects of the present disclosure described herein. It should be understood that any aspect of the present disclosure disclosed herein may be implemented by one or more elements of a claim.

[0034] Certain aspects of a telecommunications system will now be presented with reference to various devices and techniques. These devices and techniques will be described in detail hereinafter and illustrated in the drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

[0035] It should be noted that although aspects may be described using terms typically associated with 5G and later wireless technologies, aspects of the present disclosure may be applied in communication systems based on other generations, such as and including 3G and / or 4G technologies.

[0036] Aspects of the present disclosure generally relate to techniques and apparatus for determining a range between a location of a first user equipment (UE) and a location of a second UE based on a received signal strength indicator (RSSI) and a transmit power associated with the second UE. In some examples, the first UE experiences interference from the second UE. In such examples, the first UE may be referred to as a victim UE and the second UE may be referred to as an aggressor UE. In such examples, the interference may be an example of cross-link interference (CLI). In some aspects, the victim UE may determine a received signal strength indicator (RSSI) associated with a received signal transmitted by the aggressor UE. For example, the aggressor UE may transmit an uplink signal to a base station and the victim UE may determine the RSSI of the uplink signal as measured at the victim UE. The victim UE, the aggressor UE, or the base station may determine a path loss of the uplink signal transmitted by the aggressor UE based on the RSSI of the uplink signal and the transmit (or “transmission”) power. In such aspects, the RSSI may represent the received power level of the uplink signal. The victim UE, the aggressor UE, or the base station may then determine a propagation delay or range between the location of the aggressor UE and the location of the victim UE based on the path loss.

[0037] In some specific examples, the victim UE may determine a range between its location and the location of the aggressor UE based on the RSSI of an uplink signal transmitted by the aggressor UE and the uplink transmit power. In such examples, the victim UE may receive a first message from the base station that includes a CLI configuration. The CLI configuration may indicate resources on which the victim UE is to perform one or more CLI measurements of the uplink signal. The victim UE may also receive a second message indicating an uplink transmit power measurement of the uplink signal transmitted by the aggressor UE. The second message may be received from the base station via a downlink transmission or from the aggressor UE via a sidelink transmission. In such examples, the victim UE may also determine a path loss associated with the aggressor UE based on the one or more CLI measurements and the uplink transmit power measurement. The victim UE may determine a range between the location of the victim UE and the location of the aggressor UE based on the path loss.

[0038] In some other examples, the aggressor UE may determine a range between its location and the location of the victim UE based on the RSSI of an uplink signal transmitted by the aggressor UE and the uplink transmit power. In such examples, the aggressor UE may receive a measurement report indicating the RSSI of the uplink signal. The measurement report may be received from the base station via a downlink transmission or from the victim UE via a sidelink transmission. In such examples, the aggressor UE may determine a path loss based on the RSSI and the uplink transmit power, and determine a range between its location and the location of the victim UE based on the path loss.

[0039] In other examples, the base station may determine the range between the location of the attacking UE and the location of the victim UE based on the RSSI and uplink transmit power associated with the attacking UE. In such examples, the base station transmits a first message including CLI configuration to the victim UE. The base station may receive one or more CLI measurements associated with the uplink signal transmitted by the attacking UE from the victim UE based on the CLI configuration. Additionally, in such examples, the base station may transmit a second message including uplink transmit power measurement configuration to the attacking UE. In some specific examples, the resources configured by the uplink transmit power measurement configuration may be the same resources as those configured by the CLI configuration. The base station may then receive an uplink transmit power measurement associated with the transmission of the uplink signal from the attacking UE. In such examples, the base station may determine the path loss associated with the attacking UE based on the CLI measurements and the uplink transmit power measurement, and determine the range between the location of the victim UE and the location of the attacking UE based on the path loss.

[0040] Certain aspects of the subject matter described in this disclosure may be implemented to achieve one or more of the following potential advantages. In some examples, a low-end UE (such as an NR-Light UE) may be designated to operate with limited power and limited processing capabilities. In these examples, the limited power and limited processing capabilities may constrain or reduce the accuracy of the positioning function of the low-end UE. However, the CLI measurements performed at the UE (such as the victim UE) may overcome these constraints. In such examples, the CLI measurements may include RSSI of the attacking UE or received RSRP measurement of the sounding reference signal (SRS), which may enable more accurate positioning.

[0041] Figure 1 FIG. 100 is a diagram illustrating a network 100 in which aspects of the present disclosure may be practiced. The network 100 may be a 5G or NR network or some other wireless network, such as an LTE network. The wireless network 100 may include several BSs 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, transmission reception point (TRP), etc. Each BS may provide communication coverage for a specific geographical area. In 3GPP, the term "cell" may refer to the coverage area of a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0042] The BS can provide communication coverage for macro cells, pico cells, femto cells, and / or another type of cell. A macro cell can cover a relatively large geographical area (e.g., with a radius of several kilometers) and can allow unconstrained access by UEs with service subscriptions. A pico cell can cover a relatively small geographical area and can allow unconstrained access by UEs with service subscriptions. A femto cell can cover a relatively small geographical area (e.g., a residence) and can allow constrained access by UEs associated with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG)). The BS for a macro cell can be referred to as a macro BS. The BS for a pico cell can be referred to as a pico BS. The BS for a femto cell can be referred to as a femto BS or a home BS. In Figure 1 In the example shown in Figure 1 , BS 110a 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”, “B node”, “5G NB” and “cell” can be used interchangeably.

[0043] In some aspects, a cell may not have to be stationary and the geographical area of a cell can move according to the location of a mobile BS. In some aspects, BSs can be interconnected with each other and / or interconnected to one or more other BSs or network nodes (not shown) in the wireless network 100 using any suitable transport network via various types of backhaul interfaces such as direct physical connections, virtual networks, etc.

[0044] The wireless network 100 can also include relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send the transmission of the data to a downstream station (e.g., a UE or a BS). A relay station can also be a UE that can relay transmissions for other UEs. In Figure 1 In the example shown in Figure 1 , relay station 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station can also be referred to as a relay BS, a relay base station, a relay, etc.

[0045] The wireless network 100 can be a heterogeneous network including different types of BSs (e.g., macro BS, pico BS, femto BS, relay BS, etc.). These different types of BSs can have different transmit power levels, different coverage areas, and different impacts on interference in the wireless network 100. For example, a macro BS can have a high transmit power level (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0046] As an example, BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and the core network 130 can exchange communications via a backhaul link 132 (e.g., S1, etc.). The base stations 110 can communicate with each other directly or indirectly (e.g., through the core network 130) on other backhaul links (e.g., X2, etc.).

[0047] The core network 130 can be an evolved packet core (EPC), which can include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME can be a control node that processes signaling between the UE 120 and the EPC. All user IP packets can be passed through the S-GW, and the S-GW itself can be connected to the P-GW. The P-GW can provide IP address allocation and other functions. The P-GW can be connected to the network operator's IP services. The operator's IP services can include the Internet, intranet, IP multimedia subsystem (IMS), and packet switched (PS) streaming services.

[0048] The core network 130 can provide user authentication, access authorization, tracking, IP connectivity, and other access, routing, or mobility functions. One or more of the base stations 110 or access node controllers (ANCs) can interface with the core network 130 via the backhaul link 132 (e.g., S1, S2, etc.), and can perform radio configuration and scheduling for communication with the UE 120. In some configurations, the various functions of each access network entity or base station 110 can be distributed across various network devices (e.g., radio heads and access network controllers) or combined into a single network device (e.g., base station 110).

[0049] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. The UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, and so on. The UE can 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, a superbook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via wireless or wired media.

[0050] One or more UEs 120 can establish a protocol data unit (PDU) session for a network slice. In some cases, the UE 120 can select a network slice based on an application or a subscribed service. By having different network slices serve different applications or subscriptions, the UE 120 can improve its resource utilization in the wireless communication system 100 while also meeting the performance specifications of the individual applications of the UE 120. In some cases, the network slice used by the UE 120 can be served by an AMF ( Figure 1 not shown in the figure) associated with one or both of the base station 110 or the core network 130. In addition, the session management of the network slice can be performed by the access and mobility management function (AMF).

[0051] Some UEs can be considered machine type communication (MTC) UEs, or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node can provide connectivity to a network (e.g., a wide area network such as the Internet or a cellular network) or provide connectivity to the network, for example, via a wired or wireless communication link. Some UEs can be considered Internet of Things (IoT) devices, and / or can be implemented as narrowband IoT (NB-IoT) devices. Some UEs can be considered customer premise equipment (CPE). The UE 120 can be included inside a housing that houses the components of the UE 120, such as a processor component, a memory component, and so on.

[0052] In general, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific radio access technology (RAT) and can operate on one or more frequencies. The RAT can also be referred to as radio technology, air interface, etc. The frequency can also be referred to as carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks of different RATs. In some cases, an NR or 5G RAT network can be deployed.

[0053] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., communicate with each other without using the base station 110 as an intermediary). For example, the UE 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which can include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this case, the UE 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere as being performed by the base station 110. For example, the base station 110 can configure the UE 120 via downlink control information (DCI), radio resource control (RRC) signaling, media access control - control element (MAC-CE), or via system information (e.g., system information block (SIB)).

[0054] As indicated above, Figure 1 is provided merely as an example. Other examples may be different from those Figure 1 described.

[0055] Figure 2 FIG. 200 is a block diagram of a design of a base station 110 and a UE 120, and the base station 110 and the UE 120 can be Figure 1 one of the base stations and one of the UEs in. The base station 110 can be equipped with T antennas 234a to 234t, and the UE 120 can be equipped with R antennas 252a to 252r, where generally T≥1 and R≥1.

[0056] At base station 110, transmit processor 220 may receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCSs) for a UE at least in part based on channel quality indicators (CQIs) received from each UE, process (e.g., encode and modulate) the data for the UE at least in part based on the selected MCS(s) for each UE, and provide data symbols for all UEs. Reducing the MCS reduces throughput but increases transmission reliability. Transmit processor 220 may 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 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRSs)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). Transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process its respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively. According to various aspects described in more detail below, position coding may be utilized to generate synchronization signals to convey additional information.

[0057] At the UE 120, antennas 252a through 252r may receive downlink signals from the base station 110 and / or other base stations and may provide the received signals to demodulators (DEMOD) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. The MIMO detector 256 may obtain the received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols when applicable, and provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide the decoded data for the UE 120 to the data sink 260, and provide the decoded control information and system information to the controller / processor 280. The channel processor may determine the RSRP, received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of the UE 120 may be included in a housing.

[0058] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266 when applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, the uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 254, detected by the MIMO detector 236 when applicable, and further processed by the receive processor 238 to obtain the decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and provide the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the core network 130 via the communication unit 244. The core network 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0059] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component(s) may perform one or more techniques associated with RSSI-based positioning, as described in more detail elsewhere. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) may execute or direct, for example Figure 13 , 14 and operations of processes 15 and other processes as described. The memories 242 and 282 may store data and program codes for the base station 110 and the UE 120, respectively. The scheduler 246 may schedule the UE for data transmission on the downlink and / or uplink.

[0060] As described, in a time division duplex (TDD) system, different uplink-downlink (UL-DL) slot formats may be specified for adjacent UEs. That is, the UL-DL slot format of a first UE may be different from the UL-DL slot format of a second UE, where the second UE is adjacent to the first UE.

[0061] Figure 3 is a diagram illustrating an example of UL-DL slot format mismatch. As Figure 3 shown, a first UE (UE1) may be configured with a first UL-DL slot format 300 and a second UE (UE2) may be configured with a second UL-DL slot format 302. In Figure 3 the example, several OFDM symbols (e.g., fourteen or twelve) may be defined for each slot employing UL-DL slot formats 300 and 302. The OFDM symbols may be classified as downlink symbols (D), uplink symbols (U), or flexible symbols (F). As an example, as Figure 3 shown, the first symbol 304a of the first UL-DL slot format 300 may be configured for downlink (D) communication and the first symbol 306a of the second UL-DL slot format 302 may be configured for downlink (D) communication. As another example, as Figure 3 shown, the second symbol 304b of the first UL-DL slot format 300 may be configured for uplink (U) communication and the second symbol 306b of the second UL-DL slot format 302 may be configured for downlink (D) communication.

[0062] In this example, the uplink transmission in the second symbol 304b of the first UE may conflict with (e.g., interfere with) the downlink transmission in the second symbol 306b of the second UE. A conflict caused by a mismatch between the OFDM symbol 304b of the first UE and the OFDM symbol 306b of the second UE may be a type of CLI. In some examples, the uplink transmission in the second symbol 304b may be a control signal on a Physical Uplink Control Channel (PUCCH), a data message on a Physical Uplink Shared Channel (PUSCH), a Physical Random Access Channel (PRACH) preamble, or a Sounding Reference Signal (SRS). In Figure 3 the example, the first UE is an example of an attacking UE and the second UE is an example of a victim UE.

[0063] Figure 4 is a timing diagram 400 illustrating examples for CLI measurement according to various aspects of the present disclosure. In some examples, a base station (e.g., gNB) configures CLI measurement resources for interference management. As Figure 4 shown, at time t1, the network transmits a CLI resource configuration (e.g., a CLI measurement resource configuration) to the victim UE for interference management. For ease of explanation, Figure 4 the example involves one victim UE. Aspects of the present disclosure are not limited to one victim UE. In some implementations, multiple victim UEs may be configured to perform CLI measurements. The CLI configuration may be provided in one or more measurement objects and may identify the CLI resources for measurement. For example, the CLI configuration may identify the periodicity of the uplink transmission, the frequency of the uplink transmission, and the symbol of the uplink transmission. As Figure 4 shown, at time t2a, the attacking UE performs an uplink transmission. Additionally, at time t2b, the victim UE performs one or more CLI measurements associated with the uplink transmission of the attacking UE. The one or more CLI measurements do not affect the uplink transmission of the attacking UE. In some implementations, the victim UE may measure SRS-RSRP or RSSI based on the CLI resources identified in the CLI resource configuration. Additionally, as Figure 4 shown, at time t3, the victim UE transmits a CLI measurement report to the base station. The CLI measurement report indicates the one or more CLI measurements performed at time t2b. In an optional implementation, at time t4, the base station may initiate a CLI cancellation procedure.

[0064] Figure 5 is a diagram illustrating an example 500 of RSSI-based positioning. In some examples, RSSI or Received Signal Strength (RSS) may be used for positioning. As Figure 5As shown in the example, the positions of each of base stations 502a, 502b, 502c, and 502d may be fixed. Additionally, one or more of base stations 502a, 502b, 502c, and 502d may measure the signal strength (e.g., RSSI) of the uplink transmission of UE 504. One or more of base stations 502a, 502b, 502c, and 502d may share the measured RSSI. In some examples, UE 506 may share uplink transmit power with one or more of base stations 502a, 502b, 502c, and 502d. Base stations 502a, 502b, 502c, and 502d may share the measured RSSI and uplink transmit power via a backhaul connection. In this example, each of base stations 502a, 502b, 502c, and 502d may derive path loss from the RSSI and the uplink transmit power of UE 504. Additionally, each of base stations 502a, 502b, 502c, and 502d may determine a corresponding distance (e.g., propagation distance) to UE 504 based on the path loss. Further, each of base stations 502a, 502b, 502c, and 502d may determine a service area by drawing a service circle (not shown) with a radius based on the corresponding distance to UE 504. The location of UE 506 may be determined based on the intersection of the service circles of base stations 502a, 502b, 502c, and 502d. Determining the location of UE 506 based on the intersection of the service circles may be an example of triangulation.

[0065] In some cases, network synchronization errors may result in inaccurate positioning calculations. That is, network synchronization errors may prevent high-precision positioning. Additionally, RSSI-based positioning, such as RSSI-based triangulation, may not be as accurate as the positioning solutions described in NR Release 16 and later releases. For example, a round-trip time (RTT)-based solution technique may be more accurate than an RSSI-based positioning solution.

[0066] In some examples, low-end UEs (such as NR-Light UEs) may be designated to operate with limited power and limited processing capabilities. In these examples, the limited power and limited processing capabilities may constrain and reduce the accuracy of the positioning function of the low-end UEs. However, in these examples, CLI measurements performed at the UE (such as the victim UE) may overcome the described constraints. That is, CLI measurements may provide RSSI measurements of the attacking UE, and the RSSI measurements may be used for positioning.

[0067] As described, RSSI-based positioning may be less accurate compared to other positioning techniques such as RTT positioning. Nevertheless, RSSI-based positioning may consume less power and computing resources compared to other positioning techniques such as RTT positioning. Thus, RSSI-based positioning may be desirable for some UEs such as low-power UEs (e.g., NR light UEs). Aspects of the present disclosure relate to determining UE positioning based on CLI RSSI measurements.

[0068] In some examples, the path loss of a signal may be determined based on the transmit power and RSSI of the signal. In these examples, the RSSI may represent the received power level. The receiver may determine the propagation delay from the transmitter or the range from the transmitter based on the path loss. In some implementations, the base station determines the range between the victim UE and the aggressor UE based on the RSSI and transmit power associated with the aggressor UE. Figure 6 is a timing diagram 600 illustrating an example of network-based positioning according to aspects of the present disclosure. In Figure 6 the example, at time t1, the base station (such as the base station 110 described with reference to Figure 1 transmits a CLI resource configuration (e.g., a CLI measurement resource configuration) to the victim UE for interference management. For ease of explanation, Figure 6 the example involves one victim UE. Aspects of the present disclosure are not limited to one victim UE. In some implementations, multiple victim UEs may be configured to perform CLI measurements. The CLI configuration may be provided in one or more measurement objects and may identify the CLI resources for measurement, such as periodicity, frequency, and symbols. As Figure 6 shown, at time t2a, the aggressor UE performs an uplink transmission. Additionally, at time t2b, the victim UE performs one or more CLI measurements associated with the uplink transmission of the aggressor UE. The one or more CLI measurements do not affect the uplink transmission of the aggressor UE. In Figure 6 the example, the one or more CLI measurements may be CLI RSSI measurements or CLI SRS-RSRP based on the CLI resources identified in the CLI resource configuration. Additionally, as Figure 6 shown, at time t3, the victim UE transmits a CLI measurement report to the base station. The CLI measurement report indicates the one or more CLI measurements performed at time t2b. In Figure 6 the example, the victim UE and the aggressor UE are examples of the UE 120 described with reference to Figure 1 .

[0069] As Figure 6As shown in, at time t4, the base station transmits an uplink transmit power reporting configuration to the attacking UE. The uplink transmit power reporting configuration configures one or more resource blocks and one or more symbols associated with a second uplink transmission (not shown) of the attacking UE. The one or more resource blocks and one or more symbols associated with the second uplink transmission are the same as the one or more resource blocks and one or more symbols associated with the uplink transmission performed at time t2a. That is, the resources configured by the uplink transmit power reporting configuration may match the resources configured by the CLI resource configuration. The uplink transmit power reporting configuration may be indicated in downlink control information (DCI), media access control (MAC) messages, control element (CE), or radio resource configuration (RRC) signaling.

[0070] In addition, as Figure 6 shown in, at time t5, the attacking UE determines the uplink transmit power based on the uplink transmit power reporting configuration. Additionally, at time t6, the attacking UE transmits an uplink transmit power report indicating the uplink transmit power. The uplink transmit power report may be transmitted in response to measuring the uplink transmit power. In some implementations, at time t7, the base station determines the path loss associated with the attacking UE based on the CLI measurement and the uplink transmit power. In this implementation, at time t8, the base station determines the range between the location of the victim UE and the location of the attacking UE based on the path loss. In an optional implementation, at time t9, the base station may initiate a CLI cancellation procedure.

[0071] In some implementations, the victim UE determines the range between its location and the location of the attacking UE based on the path loss. Figure 7 is a timing diagram 700 illustrating an example of victim UE-based positioning according to aspects of the present disclosure. In Figure 7 the example, the processes performed at times t1 - t5 are similar to the processes at times t1 - t6 described with reference to Figure 6 . Additionally, in Figure 7 the example, at time t7, the base station transmits the uplink transmit power associated with the attacking UE to the victim UE. In one implementation, at time t8, the victim UE determines the path loss associated with the attacking UE based on the CLI measurement and the uplink transmit power. In this implementation, at time t9, the victim UE determines the range between its location and the location of the attacking UE based on the path loss. In an optional implementation, at time t10, the base station may initiate a CLI cancellation procedure.

[0072] In some implementations, the attacking UE determines the range between its location and the location of the victim UE based on the path loss. Figure 8FIG. 800 is a timing diagram illustrating an example of attacker UE-based positioning in accordance with aspects of the present disclosure. In Figure 8 the example, the processes performed at times t1 - t3 are similar to the processes at times t1 - t3 described with reference to Figure 6 . Additionally, in Figure 8 the example, at time t4, the base station transmits a measurement report indicating the RSSI of the uplink message transmitted at time t2a. In one implementation, at time t5, the attacker UE determines the uplink transmit power. In some examples, the uplink transmit power may be the transmit power used for the uplink transmission performed at time t2a. Additionally, in some examples, at time t6, the attacker UE determines the path loss based on the CLI measurement and the uplink transmit power. In these examples, at time t7, the attacker UE determines the range between its location and the location of the victim UE based on the path loss. In an optional implementation, at time t8, the base station may initiate a CLI cancellation procedure.

[0073] In some implementations, the victim UE and the attacker UE may be configured for sidelink communication. Figure 9A FIG. 900 is a timing diagram illustrating an example of RSSI positioning for sidelink UEs in accordance with aspects of the present disclosure. In Figure 9A the example, the victim UE and the attacker UE may be configured for UE-to-UE communication (e.g., vehicle-to-vehicle (V2V) communication or vehicle-to-everything (V2X) communication) on one or more sidelink channels. In Figure 9A the example, the processes performed at times t1 - t3 are similar to the processes at times t1 - t3 described with reference to Figure 6 . Additionally, in Figure 9A the example, at time t4, the attacker UE determines the uplink transmit power. Additionally, at time t5, the attacker UE transmits an uplink transmit power report indicating the uplink transmit power to the victim UE on the sidelink channel. The uplink transmit power report may be transmitted in response to measuring the uplink transmit power. In some implementations, at time t6, the victim UE determines the path loss associated with the attacker UE based on the CLI measurement and the uplink transmit power. In this implementation, at time t7, the victim UE determines the range between its location and the location of the attacker UE based on the path loss. In an optional implementation, at time t8, the base station may initiate a CLI cancellation procedure.

[0074] Figure 9B FIG. 950 is a timing diagram illustrating an example of RSSI positioning for sidelink UEs in accordance with aspects of the present disclosure. In Figure 9BIn an example, the victim UE and the attacking UE may be configured for UE-to-UE communication (e.g., V2V communication or V2X communication) on one or more sidelink channels. In Figure 9B In an example, the procedure executed at times t1 - t3 is similar to the procedure at times t1 - t3 described with reference to Figure 6 Additionally, in Figure 9B In an example, at time t4, the victim UE transmits a measurement report indicating the RSSI of the uplink message transmitted at time t2a. The measurement report may be transmitted on a sidelink channel. In one implementation, at time t5, the attacking UE determines the uplink transmit power. In some examples, the uplink transmit power may be the transmit power for the uplink transmission performed at time t2a. Additionally, in some examples, at time t6, the attacking UE determines the path loss based on the CLI measurement and the uplink transmit power. In these examples, at time t7, the attacking UE determines the range between its location and the location of the victim UE based on the path loss. In an optional implementation, at time t8, the base station may initiate a CLI cancellation procedure.

[0075] Figure 10 is a block diagram illustrating an example of a wireless communication device 1000 that supports RSSI-based positioning in accordance with aspects of the present disclosure. The device 1000 may be an example of aspects of the UE 120 described with reference to Figure 1 In some examples, the device 1000 may be an example of the victim UE described with reference to Figure 6 , 7 , 8, 9A, and 9B. The wireless communication device 1000 may include a receiver 1010, a communication manager 1005, a transmitter 1020, a CLI measurement component 1030, a path loss component 1040, and a range component 1050, which may communicate with each other (e.g., via one or more buses). In some examples, the wireless communication device 1000 is configured to perform operations including the operations of procedure 1200 described with reference to Figure 12 below.

[0076] In some examples, the wireless communication device 1000 may include a chip, a chipset, a package, or a device including at least one processor and at least one modem (e.g., a 5G modem or other cellular modem). In some examples, the communication manager 1005 or its subcomponents may be separate and distinct components. In some examples, at least some components of the communication manager 1005 are at least partially implemented as software stored in a memory. For example, portions of one or more components of the communication manager 1005 may be implemented as non-transitory code executable by a processor to perform the functions or operations of the corresponding components.

[0077] The receiver 1010 may receive one or more reference signals (e.g., periodically configured CSI-RS, aperiodically configured CSI-RS, or beam-specific reference signals), synchronization signals (e.g., SSB), control information, and data information in packet form from one or more other wireless communication devices via various channels including a control channel (e.g., Physical Downlink Control Channel (PDCCH)) and a data channel (e.g., PDSCH). The other wireless communication devices may include, but are not limited to, the base station 110 described with reference to Figure 1 as described.

[0078] The received information may be passed to other components of the device 1000. The receiver 1010 may be an example of aspects of the receive processor 258 described with reference to Figure 2 The receiver 1010 may include a set of radio frequency (RF) chains coupled to or otherwise utilizing a set of antennas (e.g., the set of antennas may be an example of aspects of the antennas 252a to 252r described with reference to Figure 2 as described).

[0079] The transmitter 1020 may transmit signals generated by the communication manager 1005 or other components of the wireless communication device 1000. In some examples, the transmitter 1020 may be co-located with the receiver 1010 in a transceiver. The transmitter 1020 may be an example of aspects of the transmit processor 254 described with reference to Figure 2 The transmitter 1020 may be coupled to or otherwise utilize a set of antennas (e.g., the set of antennas may be an example of aspects of the antennas 252a to 252r described with reference to Figure 2 as described), and the set of antennas may be antenna elements shared with the receiver 1010. In some examples, the transmitter 1020 is configured to transmit control information in the PUCCH and data in the PUSCH.

[0080] The communication manager 1005 may be described with reference to Figure 2Examples of aspects of the described controller / processor 280. The communication manager 1005 may include a CLI measurement component 1030, a path loss component 1040, and a range component 1050. In one implementation, working in cooperation with the receiver 1010, the CLI measurement component 1030 may receive a CLI configuration from a base station. The CLI configuration may indicate CLI resources for measurement. For example, the resources may include resource blocks and symbols of uplink transmissions from neighboring UEs (such as an attacking UE). Additionally, working in cooperation with the receiver 1010, the CLI measurement component 1030 may perform one or more CLI measurements associated with the uplink transmission based on the CLI configuration. In this implementation, working in cooperation with the receiver 1010, the path loss component 1040 may receive the uplink transmit power of the attacking UE. Additionally, the path loss component 1040 may determine the path loss associated with the attacking UE based on one or more CLI measurements and the uplink transmit power. Furthermore, in this implementation, the range component 1050 may determine the range between the location of the device 1000 and the attacking UE based on the path loss.

[0081] Figure 11 is a block diagram illustrating an example of a wireless communication device 1100 that supports CLI RSSI-based positioning in accordance with aspects of the present disclosure. The device 1100 may be an example of aspects of the UE 120 as described with reference to Figure 1 In some examples, the device 1100 may be an example of an attacking UE as described with reference to Figure 6 , 7 , 8, 9A, and 9B. The wireless communication device 1100 may include a receiver 1110, a communication manager 1105, a transmitter 1120, an uplink transmit power component 1130, a path loss component 1140, and a range monitoring component 1150, which may communicate with each other (e.g., via one or more buses). In some examples, the wireless communication device 1100 is configured to perform operations including the operations of process 1400 described with reference to Figure 14

[0082] In some examples, the wireless communication device 1100 may include a chip, a chipset, a package, or a device including at least one processor and at least one modem (e.g., a 5G modem or other cellular modem). In some examples, the communication manager 1105 or its sub-components may be separate and distinct components. In some examples, at least some components of the communication manager 1105 are at least partially implemented as software stored in a memory. For example, portions of one or more components of the communication manager 1105 may be implemented as non-transitory code executable by a processor to perform the functions or operations of the corresponding components.

[0083] The receiver 1110 may receive one or more of a reference signal (e.g., a periodically configured CSI-RS, an aperiodically configured CSI-RS, or a reference signal different for multiple beams), a synchronization signal (e.g., SSB), control information, and data information from one or more other wireless communication devices via various channels including a control channel (e.g., PDCCH) and a data channel (e.g., PDSCH), such as in a packet form. The other wireless communication devices may include, but are not limited to, reference signals. Figure 1 A base station 110 is depicted.

[0084] The received information may be communicated to other components of the device 1100. The receiver 1110 may be a reference Figure 2 Receiver 1110 may include a receiver coupled to or otherwise utilizing a set of antennas (eg, the set of antennas may be referenced to Figure 2 A set of radio frequency (RF) chains (examples of aspects of the described antennas 252a to 252r).

[0085] The transmitter 1120 may transmit signals generated by the communication manager 1105 or other components of the wireless communication device 1100. In some examples, the transmitter 1120 may be co-located with the receiver 1110 in a transceiver. The transmitter 1120 may be a reference Figure 2 Examples of various aspects of the transmit processor 254 are described. The transmitter 1120 may be coupled to or otherwise utilize a set of antennas (eg, the set of antennas may be referenced Figure 2 252a through 252r), the set of antennas may be antenna elements shared with the receiver 1110. In some examples, the transmitter 1120 is configured to transmit control information in the PUCCH and data in the PUSCH.

[0086] The communication manager 1105 may be a reference Figure 2Examples of aspects of the described controller / processor 280. The communication manager 1105 may include an uplink transmit power component 1130, a path loss component 1140, and a range monitoring component 1150. In one implementation, the transmitter 1120 may transmit an uplink message. Additionally, in this implementation, working in conjunction with the transmitter 1120, the uplink transmit power component 1130 may determine the uplink transmit power for transmitting the uplink message. Additionally, working in conjunction with the receiver 1010, the path loss component 1140 may receive a measurement report indicating the RSSI of the uplink message. The RSSI of the uplink message may be measured at the victim UE. Additionally, the path loss component 1140 may determine the path loss associated with the attacking UE based on one or more CLI measurements and the uplink transmit power. Further, in this implementation, the range monitoring component 1150 may determine the range between the location of the device 1100 and the victim UE based on the path loss.

[0087] Figure 12 is a block diagram illustrating an example of a wireless communication device 1200 supporting CLI RSSI-based positioning in accordance with aspects of the present disclosure. The device 1200 may be an example of aspects of a base station (such as base station 110) described with reference to Figure 1 The device 1200 may implement an architecture for supporting downlink grant transmissions to initiate channel measurements for a downlink channel associated with a multicast transmission. The wireless communication device 1200 may include a receiver 1210, a communication manager 1215, a transmitter 1220, a CLI component 1230, an uplink transmit power component 1240, a path loss component 1250, and a range component 1260, which may communicate with each other (e.g., via one or more buses). In some examples, the wireless communication device 1200 is configured to perform operations including the operations of process 1500 described below with reference to Figure 15 The operations described.

[0088] In some examples, the wireless communication device 1200 may include a chip, a chipset, a package, or a device including at least one processor and at least one modem (e.g., a 5G modem or other cellular modem). In some examples, the communication manager 1215 or its sub-components may be separate and distinct components. In some examples, at least some components of the communication manager 1215 are at least partially implemented as software stored in a memory. For example, portions of one or more components of the communication manager 1215 may be implemented as non-transitory code executable by a processor to perform the functions or operations of the corresponding components.

[0089] The receiver 1210 may receive one or more of signals, control information, and data information in packet form from one or more other wireless communication devices via various channels including a control channel (e.g., PUCCH) and a data channel (e.g., Physical Uplink Shared Channel (PUSCH)). The other wireless communication devices may include, but are not limited to, the UE 120 described with reference to Figure 1 In aspects of the present disclosure, the wireless communication device 1200 may forward and receive information via a backhaul connection.

[0090] The device 1200 may pass the received information to other components of the device 1200. The receiver 1210 may be an example of aspects of the receive processor 238 described with reference to Figure 2 The receiver 1210 may include a set of RF chains coupled to or otherwise utilizing a set of antennas (e.g., the set of antennas may be an example of aspects of the antennas 234a through 234t described with reference to Figure 2 ).

[0091] The transmitter 1220 may transmit signals generated by the communication manager 1215 or other components of the wireless communication device 1200. In some examples, the transmitter 1220 may be co-located with the receiver 1210 in a transceiver. The transmitter 1220 may be an example of aspects of the transmit processor 220 described with reference to Figure 2 The transmitter 1220 may be coupled to or otherwise utilize a set of antennas (e.g., the set of antennas may be an example of aspects of the antennas 234a through 234t described with reference to Figure 2 ), which may be antenna elements shared with the receiver 1210. In some examples, the transmitter 1220 is configured to transmit control information in the PDCCH and data in the PDSCH.

[0092] The communication manager 1215 may be described with reference to Figure 2Examples of aspects of the described controller / processor 240. The communication manager 1215 can include a CLI component 1230, an uplink transmit power component 1240, a path loss component 1250, and a range component 1260. In one implementation, the CLI component 1230 works in cooperation with the transmitter 1220, and the CLI component 1230 conveys a CLI configuration to the victim UE. The CLI configuration can indicate CLI resources for measurement. For example, the resources can include resource blocks and symbols of uplink transmissions from neighboring UEs such as the attacker UE. Additionally, working in cooperation with the receiver 1210, the CLI component 1230 can receive a CLI measurement from the victim UE indicating a CLI measurement based on the conveyed CLI configuration. In this implementation, working in cooperation with the transmitter 1220, the uplink transmit power component 1240 can convey an uplink transmit power report configuration. In some examples, the uplink transmit power report configuration identifies resources for measuring the uplink transmit power. The resources indicated in the uplink transmit power report configuration can be the same as the resources indicated in the CLI configuration. In this implementation, working in cooperation with the receiver 1210, the uplink transmit power component 1240 can receive an uplink transmit power report indicating the uplink transmit power of the attacker UE. Additionally, the path loss component 1250 can determine a path loss associated with a second UE based on the CLI measurement and the uplink transmit power. Further, the range component 1260 can determine a range between the victim UE and the attacker UE based on the path loss.

[0093] Figure 13 is a diagram illustrating an example process performed at a UE supporting CLI RSSI-based positioning in accordance with various aspects of the present disclosure. In accordance with aspects of the present disclosure, example process 1300 is an example of determining a range between the location of a victim UE and the location of an attacker UE based on CLI RSSI measurements. Operations of process 1300 can be implemented by a UE (such as, UE 120) or components thereof as described with reference to Figure 1 For example, operations of process 1300 can be performed by one or more of a receiver 1010, a communication manager 1005, a transmitter 1020, a CLI measurement component 1030, a path loss component 1040, and a range component 1050 as described with reference to Figure 10 In some examples, the UE can execute an instruction set to control functional elements of the UE to perform the operations or functions described below. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the operations or functions described below.

[0094] At block 1302, the UE may receive a first message from a base station that includes cross-link interference (CLI) configuration. After receiving the CLI configuration message, at block 1304, the UE performs one or more CLI measurements associated with an uplink transmission to a second UE based on the CLI configuration.

[0095] At block 1306, the UE receives a second message that includes an uplink transmit power measurement of the second UE. At block 1308, the UE determines a path loss associated with the second UE based on the one or more CLI measurements and the uplink transmit power measurement. Additionally, at block 1310, the UE determines a range between the location of the first UE and the location of the second UE based on the path loss.

[0096] Figure 14 is a diagram illustrating an example process performed at a UE supporting CLI RSSI-based positioning in accordance with various aspects of the present disclosure. In accordance with aspects of the present disclosure, example process 1400 is an example of determining a range between the location of a victim UE and the location of an aggressor UE based on CLI RSSI measurements. Operations of process 1400 may be implemented by a UE (such as, UE 120) or components thereof as described with reference to Figure 1 as described. For example, operations of process 1400 may be performed by one or more of a receiver 1110, a communication manager 1105, a transmitter 1120, an uplink transmit power component 1130, a path loss component 1140, and a range monitoring component 1150 as described with reference to Figure 11 as described. In some examples, the UE may execute an instruction set to control functional elements of the UE to perform the operations or functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the operations or functions described below.

[0097] At block 1402, an uplink message is transmitted to a base station. After transmitting the uplink message to the base station, at block 1404, the UE determines an uplink transmit power used to transmit the uplink message. At block 1406, the UE receives a measurement report indicating a received signal strength indicator (RSSI) of the uplink message. At block 1408, the UE determines a path loss based on the RSSI and the uplink transmit power. Additionally, at block 1410, the UE determines a path loss based on the RSSI and the uplink transmit power.

[0098] Figure 15 is a diagram illustrating an example process performed at a base station supporting CLI RSSI-based positioning in accordance with various aspects of the present disclosure. In accordance with aspects of the present disclosure, example process 1500 is an example of determining a range between the location of a victim UE and the location of an aggressor UE based on CLI RSSI measurements. Operations of process 1500 may be performed by reference toFigure 1 implemented by the described base station (such as, base station 110) or its components. For example, the operations of process 1500 may be performed by one or more of the receiver 1210, communication manager 1215, transmitter 1220, CLI component 1230, uplink transmit power component 1240, path loss component 1250, and range component 1260 as described with reference to Figure 12 In some examples, the UE may execute an instruction set to control functional elements of the UE to perform the operations or functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the operations or functions described below.

[0099] At block 1502, the base station transmits a first message to a first UE that includes cross-link interference (CLI) configuration. After the base station transmits the CLI configuration message, at block 1504, the base station receives, based on the CLI configuration, one or more CLI measurements associated with an uplink transmission of a second UE from the first UE.

[0100] At block 1506, the base station transmits a second message to the second UE that includes uplink transmit power measurement configuration. At block 1508, the base station receives, based on transmitting the second message, an uplink transmit power measurement of the second UE from the second UE. At block 1510, the base station determines a path loss associated with the second UE based on the CLI measurement and the uplink transmit power measurement. Additionally, at block 1512, the base station determines a range between the location of the first UE and the location of the second UE based on the path loss.

[0101] 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 by practicing the aspects.

[0102] As used, the term "component" is intended to be broadly construed as hardware, firmware, and / or a combination of hardware and software. As used, a processor is implemented with hardware, firmware, and / or a combination of hardware and software.

[0103] Some aspects are described in conjunction with a threshold. As used, depending on the context, meeting the threshold may mean that the value 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] It will be apparent that the described systems and / or methods may be implemented in different forms of hardware, firmware, and / or a combination of hardware and software. The actual special control hardware or software code used to implement these systems and / or methods does not limit the aspects. Thus, the operation and behavior of these systems and / or methods are described without reference to specific software code - understanding that software and hardware can be designed to implement these systems and / or methods at least in part based on this description.

[0105] Although specific feature combinations are recited 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 may be combined in ways not specifically recited in the claims and / or not disclosed in the specification. Although each of the dependent claims listed below may directly depend on only one claim, the disclosure of the aspects includes each dependent claim in combination with each other claim in this set of claims. The phrase reciting "at least one of" a list of items refers to any combination of these items, including a single member. 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 having multiple identical elements (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).

[0106] The elements, acts, or instructions used should not be construed as critical or essential unless expressly described as such. Also, as used, the articles "a" and "an" are intended to include one or more items and may be used interchangeably with "one or more". Additionally, as used, 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". Where only one item is intended, the phrase "only one" or similar language is used. Also, as used, the terms "having", "containing", "including", etc. are intended to be open - ended terms. Additionally, the phrase "based on" is intended to mean "at least partially based on" unless otherwise expressly stated.

Claims

1. A method for wireless communication performed by a first user equipment (UE), comprising: Receiving, from a network entity, a first message comprising cross-link interference (CLI) configuration; Performing one or more CLI measurements associated with an uplink transmission to a second UE based on the CLI configuration; Receiving a second message comprising an uplink transmit power measurement of the second UE; Determining a path loss associated with the second UE based on the one or more CLI measurements and the uplink transmit power measurement; And Determining a range between a location of the first UE and a location of the second UE based on the path loss.

2. The method of claim 1, wherein the one or more CLI measurements comprise a received signal strength indicator (RSSI).

3. The method of claim 1, wherein the first UE is configured for sidelink communication, and the second message is received from the second UE via a sidelink channel.

4. The method of claim 1, wherein the CLI configuration indicates resource blocks and symbols of the uplink transmission.

5. The method of claim 1, further comprising transmitting, to the network entity, a CLI measurement report indicating the one or more CLI measurements, wherein the second message is received from the network entity in response to transmitting the CLI measurement report.

6. The method of claim 1, wherein the uplink transmission overlaps with a downlink transmission to the first UE.

7. The method of claim 1, wherein the first UE is a new radio (NR) light UE.

8. The method of claim 1, wherein the uplink transmission is a control signal transmission on an uplink control channel or a data message transmission on an uplink shared channel.

9. A wireless communication device, comprising: At least one modem; At least one processor communicatively coupled to the at least one modem; And At least one memory communicatively coupled to the at least one processor and storing processor-readable code, the processor-readable code being configured to perform the method of any one of claims 1-8 when executed by the at least one processor in combination with the at least one modem.

10. A user equipment (UE), comprising: The wireless communication device of claim 9; At least one transceiver coupled to the at least one modem; At least one antenna coupled to the at least one transceiver to wirelessly transmit signals output from the at least one transceiver and wirelessly receive signals for input into the at least one transceiver; And A housing enclosing at least a portion of the at least one modem, the at least one processor, the at least one memory, the at least one transceiver, and the at least one antenna.

11. A method for wireless communication performed by a first user equipment (UE), comprising: Transmitting an uplink message to a network entity; Determine an uplink transmission power for transmitting the uplink message; Receive a measurement report indicating the RSSI of the uplink message; Determine a path loss based on the RSSI and the uplink transmission power; And Determine a range between the location of the first UE and the location of the second UE based on the path loss.

12. The method according to claim 11, wherein the first UE is configured for sidelink communication and the measurement report is received from the second UE via a sidelink channel.

13. The method according to claim 11, wherein the measurement report is received from the network entity based on transmitting the uplink message.

14. The method according to claim 11, wherein the first UE is a New Radio (NR) light UE.

15. The method according to claim 11, wherein the uplink message is a control signal or a data message.

16. A wireless communication device, comprising: At least one modem; At least one processor communicatively coupled to the at least one modem; And At least one memory communicatively coupled to the at least one processor and storing processor-readable code, the processor-readable code being configured to perform the method according to any one of claims 11-15 when executed by the at least one processor in combination with the at least one modem.

17. A user equipment (UE), comprising: The wireless communication device according to claim 16; At least one transceiver coupled to the at least one modem; At least one antenna coupled to the at least one transceiver to wirelessly transmit a signal output from the at least one transceiver and wirelessly receive a signal for input into the at least one transceiver; And A housing enclosing at least a portion of the at least one modem, the at least one processor, the at least one memory, the at least one transceiver, and the at least one antenna.

18. A wireless communication method for execution by a network entity, comprising: Transmit a first message including a cross-link interference (CLI) configuration to a first user equipment (UE); Receive, based on the CLI configuration, one or more CLI measurements associated with an uplink transmission of a second UE from the first UE; Transmit a second message including an uplink transmission power measurement configuration to the second UE; Receive, based on transmitting the second message, an uplink transmission power measurement of the second UE from the second UE; Determine a path loss associated with the second UE based on the CLI measurement and the uplink transmission power measurement; And Determine a range between the location of the first UE and the location of the second UE based on the path loss.

19. The method according to claim 18, wherein the CLI measurement is a received signal strength indicator (RSSI).

20. The method according to claim 18, wherein: The CLI configuration indicates a first resource block and a first symbol for measuring a first uplink transmission of the second UE; The uplink transmit power measurement configuration indicates a second resource block and a second symbol for a second uplink transmission of the second UE; The first resource block is the same as the second resource block; and The first symbol is the same as the second symbol.

21. The method according to claim 18, wherein the second message is transmitted via downlink control information (DCI), a media access control (MAC) message, a control element (CE), or radio resource configuration (RRC) signaling.

22. A wireless communication device, comprising: At least one modem; At least one processor communicatively coupled to the at least one modem; And At least one memory communicatively coupled to the at least one processor and storing processor-readable code, the processor-readable code being configured to perform the method according to any one of claims 18-21 when executed by the at least one processor in combination with the at least one modem.

23. A network entity, comprising: The wireless communication device according to claim 22; At least one transceiver coupled to the at least one modem; At least one antenna coupled to the at least one transceiver to wirelessly transmit a signal output from the at least one transceiver and wirelessly receive a signal for input into the at least one transceiver; And A housing enclosing at least a portion of the at least one modem, the at least one processor, the at least one memory, the at least one transceiver, and the at least one antenna.

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