Cross-link interference measurements on multi-beam

Abstract

Methods, systems, and apparatus for wireless communications are described. In general, a base station may configure one or more CLI measurement resources on which a user equipment (UE) is to measure cross-link interference. The UE may measure CLI from a single attacking UE in multiple receive directions. The UE may identify receive beams on which it receives other signal types and use these receive beams to measure CLI. In some examples, the base station may explicitly indicate to the UE the receive beams it will use for CLI measurements. The UE may measure CLI on each CLI measurement resource using the identified receive beams and may transmit a CLI report to the base station that includes the CLI measurements, an indication of the resources on which the CLI measurements were made, or a combination thereof.

Description

Technical Field

[0001] The following relates generally to wireless communications and, more particularly, to cross-link interference measurements in multiple directions. Background Art

[0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message reception and transmission, broadcasting, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems or LTE-A Pro systems) and fifth generation (5G) systems that may be referred to as new radio (NR) systems. These systems may use various technologies, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform extended orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each base station or network access node simultaneously supporting the communication of multiple communication devices, which may be referred to as user equipment (UE) in addition. A carrier may be configured to operate according to time division duplex (TDD), and various UEs may operate using the same or different TDD configurations.

[0003] Overview

[0004] The described technology relates to improved methods, systems, devices, and apparatuses that support cross-link interference (CLI) measurements in multiple directions. Typically, a base station can configure one or more CLI measurement resources on which a UE is to measure CLI. The UE can measure CLI in multiple receive directions (e.g., from one or more attacking UEs). The UE can determine the receive beam on which to implicitly measure CLI based on the receive beam used by the UE to receive one or more downlink signals (e.g., a channel state information reference signal (CSI-RS), a synchronization signal block (SSB), a reference signal associated with a transmission configuration indicator (TCI) configuration, a reference signal associated with receiving a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDCCH), or a fault detection reference signal). The victim UE can therefore identify the receive beams on which it receives other signal types and use these receive beams to measure CLI. In some examples, the base station can explicitly indicate to the UE the receive beams it will use for CLI measurements. For example, the base station may indicate a list of reference signal indices of reference signals associated with a receive beam, and the UE may perform CLI measurements using the associated receive beam according to an indicated or preconfigured time domain beam sweeping pattern. In some examples, the base station may configure each CLI measurement resource and may indicate an index of a reference signal (e.g., CSI-RS or SSB) associated with a receive beam of each configured CLI measurement resource. In such examples, the UE may measure CLI on each CLI measurement resource using the indicated receive beam.

[0005] After measuring the CLI using the identified receive beam, the UE may transmit a CLI report to the base station. The CLI report may include the CLI measurement, an index of a reference signal (e.g., CSI-RS or SSB) associated with the receive beam or transmit beam, or a combination thereof.

[0006] A method for wireless communication at a UE is described. The method may include: identifying a first resource set for performing a cross-link interference measurement; identifying a receive beam set for performing the cross-link interference measurement on the identified first resource set; performing the cross-link interference measurement using the receive beam set during at least a portion of the first resource set; and transmitting a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to a base station.

[0007] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: identify a first resource set for performing a cross-link interference measurement; identify a receive beam set for performing the cross-link interference measurement on the identified first resource set; perform the cross-link interference measurement using the receive beam set during at least a portion of the first resource set; and transmit a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to a base station.

[0008] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: identifying a first resource set for performing a cross-link interference measurement; identifying a receive beam set for performing the cross-link interference measurement on the identified first resource set; performing the cross-link interference measurement using the receive beam set during at least a portion of the first resource set; and transmitting a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to a base station.

[0009] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: identify a first resource set for performing a cross-link interference measurement; identify a receive beam set for performing the cross-link interference measurement on the identified first resource set; perform the cross-link interference measurement using the receive beam set during at least a portion of the first resource set; and transmit a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to a base station.

[0010] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for determining an association between the receive beam set and one or more downlink signals associated with a second set of resources.

[0011] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: receiving a configuration message indicating the second resource set, the receive beam set, or both from the base station.

[0012] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the second set of resources includes channel state information reference signal resources, synchronization signal resources, physical broadcast channel resources, fault detection reference signal resources, or a combination thereof.

[0013] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: receiving a configuration message from the base station indicating a transmission configuration indicator (TCI) state set associated with a physical downlink shared channel; and receiving a control message from the base station including an instruction to activate a subset of the TCI state set for communication on the physical downlink shared channel.

[0014] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatuses or instructions for the following actions: Identifying the first resource set may be based on a reference signal configured for the subset of the TCI state set.

[0015] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatuses or instructions for the following actions: Identifying the first resource set may be based on one or more reference signals associated with the TCI state set of the control resource set.

[0016] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: receiving a radio resource control message configuring the first resource set from the base station, the radio resource control message including an indication of the one or more downlink signals associated with the receive beam set, wherein identifying the receive beam set for performing the cross-link interference measurement can be based on receiving the radio resource control message.

[0017] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the one or more downlink signals include a synchronization signal block reference signal, a channel state information reference signal, or a combination thereof.

[0018] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: identifying a beam sweeping pattern for the receive beam set associated with the one or more downlink signals, wherein performing cross-link interference measurements using the receive beam set during at least the portion of the first resource set may be based on the beam sweeping pattern for the receive beam set.

[0019] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatus or instructions for the following actions: receiving a control message configuring the first resource set from the base station, the control message including an index associated with a synchronization signal block or a channel state information reference signal for determining at least one receive beam in the receive beam set for each corresponding resource of the first resource set.

[0020] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each resource in the first set of resources may be located in a different transmission time interval.

[0021] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the control information includes an information element of radio resource control information.

[0022] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the cross-link interference report includes a first set of cross-link interference measurement values ​​associated with a first subset of the receive beam set, wherein the first set of cross-link interference measurement values ​​may be higher than a second set of cross-link interference measurement values ​​associated with a second subset of the receive beam set.

[0023] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the cross-link interference report further includes one or more indices of a synchronization signal block or a channel state information reference signal associated with the receive beam set.

[0024] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the cross-link interference report includes one or more indices of synchronization signal blocks or channel state information reference signals associated with a first subset of the receive beam set, wherein the cross-link interference measurement value for the first subset of the receive beam set may be higher than the cross-link interference measurement for the second subset of the receive beam set.

[0025] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatuses or instructions for the following actions: performing a filtering procedure on a cross-link interference measurement set, wherein transmitting the cross-link interference report may be based on performing the filtering procedure.

[0026] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, performing cross-link interference measurements may include operations, features, means, or instructions for measuring one or more reference signals transmitted by a second UE.

[0027] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, performing cross-link interference measurements may include operations, features, means, or instructions for measuring received power on a first set of resources.

[0028] A method for wireless communication at a base station is described. The method may include: configuring a first resource set for a first UE to perform a cross-link interference measurement; identifying a downlink signal set associated with a receive beam set to be used by the first UE to perform the cross-link interference measurement on the identified first resource set; and receiving a cross-link interference report from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam set.

[0029] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: configure a first resource set for a first UE to perform a cross-link interference measurement; identify a downlink signal set associated with a receive beam set to be used by the first UE to perform the cross-link interference measurement on the identified first resource set; and receive a cross-link interference report from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam set.

[0030] Another apparatus for wireless communication at a base station is described. The apparatus may include means for configuring a first resource set for a first UE to perform a cross-link interference measurement; identifying a downlink signal set associated with a receive beam set to be used by the first UE to perform the cross-link interference measurement on the identified first resource set; and receiving a cross-link interference report from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam set.

[0031] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: configure a first resource set for a first UE to perform a cross-link interference measurement; identify a downlink signal set associated with a receive beam set to be used by the first UE to perform the cross-link interference measurement on the identified first resource set; and receive a cross-link interference report from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam set.

[0032] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: transmitting a configuration message indicating the second resource set, the receive beam set, or both to the first UE.

[0033] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the downlink signal includes a channel state information reference signal, a synchronization signal, a physical broadcast channel, a fault detection reference signal, or a combination thereof.

[0034] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: transmitting a configuration message to the first UE indicating a transmission configuration indicator (TCI) state set associated with a physical downlink shared channel; and transmitting a control message to the first UE including an instruction to activate a subset of the TCI state set for communication on the physical downlink shared channel.

[0035] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: identifying that the downlink signal set may be based on a reference signal configured for the subset of the TCI state set.

[0036] Some examples of the methods, apparatus (devices) and non-transitory computer-readable media described herein may further include operations, features, apparatuses or instructions for the following actions: Identifying that the downlink signal set may be based on one or more reference signals associated with the TCI state set of the control resource set.

[0037] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: transmitting a radio resource control message configuring the first resource set to the first UE, the radio resource control message including an indication of the downlink signal set associated with the receive beam set, wherein identifying the downlink signal set associated with the receive beam set to be used by the first UE to perform the cross-link interference measurement can be based on transmitting the radio resource control message.

[0038] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the downlink signal includes a synchronization signal, a channel state information reference signal, or a combination thereof.

[0039] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: transmitting to the first UE an indication of a beam sweeping pattern of the receive beam set associated with the downlink signal set, wherein identifying the downlink signal set associated with the receive beam set may be based on the beam sweeping pattern for the receive beam set.

[0040] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: transmitting a control message configuring the first resource set to the first UE, the control message including an index associated with a synchronization signal block or a channel state information reference signal for determining at least one receive beam in the receive beam set for each corresponding resource of the first resource set.

[0041] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, each resource in the first set of resources may be located in a different transmission time interval.

[0042] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the control information includes an information element of radio resource control information.

[0043] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the cross-link interference report includes a first set of cross-link interference measurement values ​​associated with a first subset of the receive beam set, wherein the first set of cross-link interference measurement values ​​may be higher than a second set of cross-link interference measurement values ​​associated with a second subset of the receive beam set.

[0044] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the cross-link interference report further includes one or more indices of a synchronization signal block or a channel state information reference signal associated with the receive beam set.

[0045] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the cross-link interference report includes one or more indices of a synchronization signal block or a channel state information reference signal associated with a first subset of the first resource set associated with a first subset of the receive beam set, wherein the cross-link interference measurement value for the first subset of the receive beam set may be higher than the cross-link interference measurement for the second subset of the receive beam set. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1An example of a system for wireless communications supporting cross-link interference (CLI) measurements in multiple directions in accordance with aspects of the present disclosure is illustrated.

[0048] Figure 2

[0013] An example of a wireless communication system supporting CLI measurements in multiple directions in accordance with aspects of the present disclosure is illustrated.

[0049] Figure 3A and 3B

[0013] An example of a wireless communication system supporting CLI measurements in multiple directions in accordance with aspects of the present disclosure is illustrated.

[0050] Figure 4

[0013] An example of a wireless communication system supporting CLI measurements in multiple directions in accordance with aspects of the present disclosure is illustrated.

[0051] Figure 5

[0013] An example of a wireless communication system supporting CLI measurements in multiple directions in accordance with aspects of the present disclosure is illustrated.

[0052] Figure 6 An example of a process flow supporting CLI measurements in multiple directions according to aspects of the present disclosure is illustrated.

[0053] Figure 7 and 8 A block diagram of a device supporting CLI measurements in multiple directions according to aspects of the present disclosure is shown.

[0054] Fig. 9 A block diagram of a communications manager supporting CLI measurements in multiple directions in accordance with aspects of the present disclosure is shown.

[0055] Fig.10 A diagram of a system including a device supporting CLI measurements in multiple directions according to aspects of the present disclosure is shown.

[0056] Fig.11 and 12 A block diagram of a device supporting CLI measurements in multiple directions according to aspects of the present disclosure is shown.

[0057] Fig.13 A block diagram of a communications manager supporting CLI measurements in multiple directions in accordance with aspects of the present disclosure is shown.

[0058] Fig.14 A diagram of a system including a device supporting CLI measurements in multiple directions according to aspects of the present disclosure is shown.

[0059] Fig.15 and 16A flow chart illustrating a method of supporting CLI measurements in multiple directions according to aspects of the present disclosure is shown.

[0060] Detailed Description

[0061] In some examples of a wireless communication system, a user equipment (UE) may cause cross-link interference (CLI) to another UE. The base station may configure a CLI measurement resource for measuring CLI, and the victim UE may perform CLI measurements during the CLI measurement resource. In some examples, the victim UE may be able to receive transmissions via multiple receive beams (e.g., from multiple directions). Therefore, the victim UE may also experience different levels of CLI on different receive beams. The base station may adjust the beam pairing (e.g., based on current traffic conditions, interference levels, UE mobility, or CLI), causing the victim UE to switch from one receive beam to another receive beam. If the victim UE does not measure or report CLI in multiple directions, the base station may initiate a beam pair change that causes the victim UE to switch from one receive beam where it experiences CLI to another receive beam where it also experiences CLI. However, if the victim UE measures and reports CLI in multiple directions, the base station may be able to more efficiently select a beam on which to communicate, or more efficiently adjust the time division duplex (TDD) configuration of the victim UE or the aggressor UE to reduce CLI, or both. A UE that measures CLI in multiple directions can more efficiently detect the presence of other neighboring UEs for sidelink applications and improve positioning enhancement accuracy.

[0062] The base station may configure one or more CLI measurement resources on which the UE is to measure CLI. The UE may measure CLI in multiple receive directions (e.g., from one or more attacking UEs). The UE may determine the receive beam on which to implicitly measure CLI based on the receive beam used by the UE to receive one or more downlink signals (e.g., a channel state information reference signal (CSI-RS), a synchronization signal block (SSB), a reference signal associated with a transmission configuration indicator (TCI) configuration, a reference signal associated with receiving a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDCCH), or a fault detection reference signal). The victim UE may therefore identify the receive beams on which it receives other signal types and use these receive beams to measure CLI. In some examples, the base station may explicitly indicate to the UE the receive beams it will use for CLI measurements. For example, the base station may indicate a list of reference signal indices of reference signals associated with the receive beams, and the UE may perform CLI measurements using the associated receive beams according to an indicated or preconfigured time domain beam sweeping pattern. In some examples, the base station may configure each CLI measurement resource and may indicate an index of a reference signal (e.g., CSI-RS or SSB) associated with a receive beam for each configured CLI measurement resource. In such examples, the UE may measure CLI on each CLI measurement resource using the indicated receive beam.

[0063] After measuring the CLI using the identified receive beam, the UE may transmit a CLI report to the base station. The CLI report may include the CLI measurement, an index of a reference signal (e.g., CSI-RS or SSB) associated with the receive beam or transmit beam, or a combination thereof.

[0064] Certain aspects of the subject matter described herein can be implemented to achieve one or more advantages. The described techniques can support improvements in system efficiency, such that devices can report CLI more efficiently, thereby improving TDD configuration, reducing interference, improving beam pair adjustment, reducing system latency, and improving user experience. Thus, the supported techniques can include improved network operation, and in some examples, can increase device and network efficiency and other benefits.

[0065] Aspects of the present disclosure are initially described in the context of wireless communication systems. Aspects of the present disclosure are further illustrated by and described with reference to process flows. Aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams related to cross-link interference measurements in multiple directions.

[0066] Figure 1An example of a wireless communication system 100 that supports cross-link interference measurements in multiple directions according to various aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0067] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may be different forms of devices or devices with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals according to one or more radio access technologies.

[0068] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile, or stationary and mobile at different times. The UEs 115 may be different forms of devices or devices with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), such as Figure 1 as shown in .

[0069] Each base station 105 may communicate with the core network 130, or communicate with each other, or both. For example, the base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3 or other interfaces). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105), or indirectly (e.g., via the core network 130), or directly and indirectly on the backhaul link 120 (e.g., via X2, Xn or other interfaces). In some examples, the backhaul link 120 may be or include one or more wireless links.

[0070] One or more of the base stations 105 described herein may include or may be referred to by a person of ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a B node, an evolved B node (eNB), a next generation B node or a gigabit B node (any of which may be referred to as a gNB), a home B node, a home evolved B node, or other suitable terminology.

[0071] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as electrical appliances or vehicles, meters, etc.

[0072] The UE 115 described herein may be able to communicate with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as base stations 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 as shown in .

[0073] The UE 115 and the base station 105 may communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0074] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by UE 115. A carrier may operate in a standalone mode in which initial acquisition and connection may be made by UE 115 via the carrier, or a carrier may operate in a non-standalone mode in which a connection is anchored using a different carrier (e.g., a different carrier of the same or different radio access technology).

[0075] The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in an FDD mode), or may be configured to carry both downlink and uplink communications (e.g., in a TDD mode).

[0076] A carrier may be associated with a particular bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as a "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) of a carrier of a particular radio access technology. Devices (e.g., base stations 105, UEs 115, or both) of the wireless communication system 100 may have a hardware configuration that supports communications on a particular carrier bandwidth, or may be configurable to support communications on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communications via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., subband, BWP) or all of a carrier bandwidth.

[0077] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system using MCM technology, a resource element may include a code element period (e.g., the duration of a modulation code element) and a subcarrier, where the code element period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the code rate of the modulation scheme, or both). Thus, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 can be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further improve the data rate or data integrity of communication with UE 115.

[0078] One or more parameter designs for a carrier may be supported, where the parameter designs may include subcarrier spacing (Δf) and cyclic prefixes. A carrier may be divided into one or more BWPs with the same or different parameter designs. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications for a UE 115 may be limited to the one or more active BWPs.

[0079] The time interval of the base station 105 or the UE 115 can be expressed as a multiple of a basic time unit, and the basic time unit can be, for example, a sampling period T s =1 / (Δf max ·Nf) seconds, where Δf max Nf may represent the maximum supported subcarrier spacing, and Nf may represent the maximum supported discrete Fourier transform (DFT) size. Time intervals of communication resources may be organized according to radio frames, each having a specific duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0080] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of code element periods (e.g., depending on the length of the cyclic prefix added before each code element period). In some wireless communication systems 100, a time slot may be further divided into a plurality of mini-time slots containing one or more code elements. Excluding the cyclic prefix, each code element period may contain one or more (e.g., N fThe duration of a symbol period may depend on the subcarrier spacing or the operating band.

[0081] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0082] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a number of symbol periods and may extend across a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0083] Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with a base station 105 (e.g., on a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) used to distinguish adjacent cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. The range of such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area depending on various factors (such as the capabilities of the base station 105). For example, a cell may be or include a building, a subset of a building, or an external space between or overlapping a geographic coverage area 110, as well as other examples.

[0084] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs 115 that have service subscriptions with a network provider that supports the macro cell. A small cell may be associated with a lower power base station 105 (compared to a macro cell), and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or may provide restricted access to UEs 115 associated with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users in a home or office). A base station 105 may support one or more cells and may also support communications on one or more cells using one or more component carriers.

[0085] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0086] In some examples, base stations 105 may be mobile and, therefore, provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0087] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and transmissions from different base stations 105 may not be aligned in time in some examples. The techniques described herein may be used for synchronous or asynchronous operation.

[0088] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents the information to a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0089] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed with a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving deep sleep mode when not engaged in active communications, operating on a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a subcarrier or resource block (RB) set) within a carrier, within a guard band of a carrier, or outside a carrier.

[0090] The wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication, and may be supported by one or more mission-critical services (such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low latency, critical mission, and ultra-reliable low latency may be used interchangeably herein.

[0091] In some examples, UE 115 may also be able to communicate directly with other UE 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within a geographic coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105, or may not be able to receive transmissions from the base station 105 for other reasons. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, wherein each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0092] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, the vehicles can communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these communications. The vehicles can signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in the V2X system can communicate with roadside infrastructure (such as roadside units), or with the network, or both via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communications.

[0093] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), and the EPC or 5GC may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a base station 105 associated with the core network 130. User IP packets may be delivered via a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. Operator IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0094] Some network devices (such as base stations 105) may include subcomponents, such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with each UE 115 through one or more other access network transport entities 145, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or merged into a single network device (e.g., base station 105).

[0095] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). In general, the 300 MHz to 3 GHz region is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from about 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features, but these waves may penetrate various structures sufficiently for macro cells to provide service to UEs 115 located indoors. Transmissions using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) than transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0096] The wireless communication system 100 may also operate in a super high frequency (SHF) zone using a frequency band from 3 GHz to 30 GHz (also known as a centimeter band) or in an extremely high frequency (EHF) zone of a spectrum (e.g., from 30 GHz to 300 GHz) (also known as a millimeter band). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between UE 115 and base station 105, and the EHF antenna of the corresponding device may be smaller and more closely spaced than the UHF antenna. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency zones, and the use of frequency bands specified across these frequency zones may vary by country or regulatory agency.

[0097] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as the 5 GHz industrial, scientific, and medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices (such as base stations 105 and UEs 115) may employ carrier sensing for collision detection and avoidance. In some examples, operations in an unlicensed band may be based on a carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in a licensed band. Operations in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0098] The base station 105 or UE 115 may be equipped with multiple antennas, which can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located in one or more antenna arrays or antenna panels that can support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having antenna ports of several rows and columns that the base station 105 can use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.

[0099] The base station 105 or UE 115 can use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such technology may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, the receiving device may receive multiple signals via different antennas or different antenna combinations. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0100] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array so that some signals propagating at a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each antenna element may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0101] The base station 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions. For example, the base station 105 may transmit signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device (such as the base station 105) or a receiving device (such as the UE 115)) to identify a beam direction used by the base station 105 for later transmission or reception.

[0102] Some signals, such as data signals associated with a particular recipient device, may be transmitted by base station 105 in a single beam direction, e.g., a direction associated with a recipient device, such as UE 115. In some examples, a beam direction associated with transmissions along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.

[0103] In some examples, transmission by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from the base station 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may transmit a reference signal that may be precoded or unprecoded (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)). The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0104] A receiving device (e.g., UE 115) may try multiple reception configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a base station 105. For example, the receiving device may try multiple reception directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different reception configurations or reception directions. In some examples, the receiving device may use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). The single reception configuration may be aligned on a beam direction determined based on listening according to different reception configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0105] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer may be IP-based. The radio link control (RLC) layer may perform packet segmentation and reassembly to communicate on a logical channel. The media access control (MAC) layer may perform priority handling and multiplex logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmission of the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer may provide the establishment, configuration, and maintenance of an RRC connection that supports radio bearers of user plane data between UE 115 and base station 105 or core network 130. In the physical layer, transport channels may be mapped to physical channels.

[0106] UE 115 and base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the likelihood of correctly receiving data on communication link 125. HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve the throughput of the MAC layer in poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, a device may support simultaneous slot HARQ feedback, wherein the device may provide HARQ feedback in a specific time slot for data received in a previous symbol in the time slot. In other cases, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0107] The base station 105 may configure one or more CLI measurement resources on which the UE 115 is to measure CLI. The UE 115 may measure CLI in multiple receive directions (e.g., from one or more aggressor UEs 115). The UE 115 may determine the receive beam on which to implicitly measure CLI based on the receive beams used by the UE 115 to receive one or more downlink signals (e.g., channel state information reference signals (CSI-RS), synchronization signal blocks (SSBs), reference signals associated with a transmission configuration indicator (TCI) configuration, reference signals associated with receiving a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDCCH), or a fault detection reference signal). The victim UE 115 may therefore identify the receive beams on which it receives other signal types and use these receive beams to measure CLI. In some examples, the base station 105 may explicitly indicate to the UE 115 the receive beams it will use for CLI measurement. For example, the base station 105 may indicate a list of reference signal indices of reference signals (e.g., CSI-RS or SSB) associated with a receive beam, and the UE 115 may perform CLI measurements using the associated receive beam according to an indicated or preconfigured time domain beam sweeping pattern. In some examples, the base station 105 may configure each CLI measurement resource and may indicate an index of a reference signal (e.g., CSI-RS or SSB) associated with a receive beam of each configured CLI measurement resource. In such examples, the UE 115 may measure CLI on each CLI measurement resource using the indicated receive beam.

[0108] After measuring the CLI using the identified receive beam, the UE 115 may transmit a CLI report to the base station 105. The CLI report may include the CLI measurement, an index of a reference signal (e.g., CSI-RS or SSB) associated with the receive beam or transmit beam, or a combination thereof.

[0109] Figure 2 An example of a wireless communication system 200 that supports a cross-link interference measurement configuration according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. The wireless communication system 200 can include a UE 215-a and a UE 215-b, which can be examples of a UE 215 as described herein. The wireless communication system 200 can also include a base station 205-a and a base station 205-b, which can be examples of a base station 205 as described herein. The base stations 205 can each be associated with a cellular cell that provides wireless communications with the base station 205 within a corresponding coverage area 210.

[0110] The wireless communication system 200 may adopt TDD communication, wherein the wireless communication channel is used for both uplink transmission and downlink transmission. Each cell may be configured with a TDD configuration 220 for the cell. For example, the first cell of the base station 205-a may use a first TDD configuration 220-a, and the second cell of the base station 205-b may use a second TDD configuration 220-b. The UE 215 in these cells may communicate with the base station based on the corresponding TDD configuration 220. For example, the time slot of the TDD configuration 220 may include a symbol period for a downlink symbol 225, a flexible symbol 230, an uplink symbol 235, or any combination thereof. The base station 205 may transmit a downlink signal in the downlink symbol 225, and the UE 215 may transmit an uplink signal in the uplink symbol 235. In some cases, the flexible symbol 230 may be used as a guard period between uplink transmission and downlink transmission. The guard period may prevent inter-symbol interference or may provide time for the UE 215 to adjust radio frequency hardware, reconfigure antennas, etc. In some cases, the flexible symbol 230 may be dynamically reconfigured into a downlink symbol 225 or an uplink symbol 235 .

[0111] The base station 205 can dynamically change the TDD configuration 220. In an example, the traffic in the first cell can be turned to be more uplink heavy, so the first TDD configuration 220-a of the first cell can be changed to use a time slot configuration with more uplink code element periods. In some cases, the TDD configuration 220 can be dynamically indicated to the UE in the cell by a time slot format indicator (SFI) in a downlink control information (DCI) transmission. The DCI transmission that conveys the SFI can be transmitted in one of the first few downlink code elements 225 of the time slot. Additionally or alternatively, the TDD configuration 220 can be semi-statically configured by higher layer signaling (e.g., included in the radio resource control configuration).

[0112] In some cases, different TDD configurations 220 used by adjacent cells may result in conflicting transmission directions for some symbol periods of a time slot. For example, the 9th and 10th symbol periods of the time slot shown may have conflicting directions for the first TDD configuration 220-a and the second TDD configuration 220-b. In the case where the TDD configuration 220-b is configured with downlink symbols 225, the TDD configuration 220-a may configure uplink symbols 235. Therefore, the UE 215-a in the first cell may be configured to transmit uplink transmissions, while the UE 215-b in the second cell is configured to receive downlink transmissions. The first cell and the second cell may be adjacent cells, and the UE 215-b and the UE 215-a may be close to each other at the edges of their respective cells. In some cases, the uplink transmission of the UE 215-a may cause a CLI 240 for the UE 215-b to receive downlink transmissions at the conflicting symbol periods. In general, different TDD configurations 220 may result in CLI 240 when an uplink symbol of one cell collides with a downlink symbol of another nearby cell. CLI 240 may occur near or between cell edge UEs of nearby cells. CLI may also occur when different UEs are configured with different TDD configurations for the same cell. A UE 215 transmitting an uplink signal (e.g., UE 215-a) may be referred to as an aggressor UE 215, and a UE 215 receiving an affected downlink transmission (e.g., UE 215-b) may be referred to as a victim UE 215.

[0113] In order to manage the CLI 240 in the wireless communication system, the victim UE 215 (e.g., UE 215-b) may perform a measurement process to determine one or more metrics of the CLI 240 to determine the strength of the CLI 240. In some such processes, the victim UE 215 may notify the serving base station 205 (e.g., 205-b) of the potential interference. The serving base station 205 may then configure resources for measuring the one or more metrics of the CLI 240 and transmit a message indicating these resources to the victim UE 215-b. The victim UE 215 may then perform measurements of the one or more metrics of the CLI 240. For example, the one or more metrics may include a reference signal received power (RSRP), a received signal strength indicator (RSSI), a signal to interference plus noise ratio (SINR), or a similar power measurement in order to determine the extent of the impact of the CLI 240 on the victim UE 215. In some cases, RSRP measurements may be performed on corresponding reference signals transmitted by the aggressor UE 215 (e.g., UE 215-a) to measure the CLI 240, while RSSI may measure all interference sources, including the reference signal transmitted by the aggressor UE 215 and other noise. Such reference signals may include a sounding reference signal (SRS), a demodulation reference signal (DMRS) for PUCCH or PUSCH, etc. For example, the aggressor UE 215 may transmit a first sounding reference signal (SRS) set to enable the victim UE 215 to measure RSRP on the SRS for determining the strength of the CLI 240, transmit a second SRS set to enable the victim UE 215 to measure RSSI on the SRS (e.g., SRS for RSSI) to determine the strength of the CLI 240, or any combination thereof.

[0114] In some cases, the CLI measurement resources may be associated with existing reference signals that the victim UE 215 measures to determine different metrics about the CLI 240. For example, the CLI measurement resources may include an SRS, a demodulation reference signal (DMRS) for PUCCH or PUSCH, or a similar uplink signal transmitted by the aggressor wireless device during one or more corresponding downlink symbols at the victim UE 215. Accordingly, the victim UE 215 may measure the strength of the CLI 240 based on the one or more CLI measurement resources received from the aggressor wireless device. After determining the strength of the CLI 240, the victim UE 215 may report the CLI measurements to the serving base station 205. The serving base station 205 may then initiate a CLI management procedure to eliminate or otherwise take the CLI 240 into account.

[0115] Although Figure 2205 -b, but there may be different scenarios in which an uplink transmission from UE 215-a may cause CLI to a downlink transmission received by UE 215-b. The various techniques described herein may also be applied to other UE-to-base station connection topologies. For example, the victim UE 215 may not know whether the attacker UE 215 is in the same cell, in an adjacent cell of a homogeneous deployment, or in a different cell of an overlapping or heterogeneous deployment. If the attacker UE 215 is in a different cell of a heterogeneous deployment, the base stations 205 associated with these cells may or may not be co-located. In some cases, the victim UE may not know the UE-to-base station connection topology (e.g., the relationship between the serving cell of the victim UE and the serving cell of the attacker UE). In such a case, the victim UE may not know one or more timing parameters to be used to measure CLI 240. Such timing misalignment between serving cells may result in poor or failed CLI measurements, inefficient use of resources, and reduced system efficiency. Additionally, the victim UE 215 may not know which aggressor UEs 215 to prioritize when measuring CLI. In some cases, such instances may result in inefficient use of measurement resources, excessive power consumption, etc. Such alternative connection topologies and the challenges introduced thereby are described in detail in the accompanying drawings. Figure 3A and 3B To address such challenges, the base station 205 may provide the victim UE 215 with information about the relationship between the serving cells, as described in detail in Figure 5 Described in more detail.

[0116] Figure 3A and 3B Examples of wireless communication systems 300 and 301 are illustrated, which may be examples of wireless communication systems 100 and 200 and may support cross-link interference measurement configurations according to aspects of the present disclosure. In some examples, the wireless communication systems 300 and 301 may implement aspects of the wireless communication systems 100 or 200. The wireless communication systems 300 and 301 may include a UE 315, which may be an example of a UE 115 and 215. The wireless communication systems 300 and 301 may also include one or more base stations 305, which may be examples of base stations 105 or 205. The one or more base stations 305 may each be associated with a cellular cell that provides communications to the one or more cellular cells 305 within a corresponding coverage area 310. In some examples, the wireless communication systems 300 and 301 may represent as referenced Figure 2 Described UE to base station connection topology.

[0117] Reference Figure 3A , UE 315-a and UE 315-b may be operating within the same serving cell and both may be in communication with base station 305-a. In such examples, if UE 315-a is transmitting an uplink signal when UE 315-b is transmitting a downlink signal, UE 315-a may interfere with UE 315-b, thereby generating CLI. In these examples, UE 315-a may be referred to as an attacker UE and UE 315-b may be referred to as a victim UE. In some cases, victim UE 315-b may perform measurements of the CLI generated by attacker UE 315-a. In some cases, such measurements may be referred to as intra-cell CLI measurements. In some examples, one or more timing parameters associated with the CLI measurement may correspond to the timing of victim UE 315-b.

[0118] Reference Figure 3B , UE 315-c and UE 315-d may operate in different cells and be in communication with base station 305-b and base station 305-c, respectively. In some examples, the serving cell of UE 315-c and the serving cell of UE 315-d may be neighboring cells (e.g., cells of the same type) deployed in a homogeneous manner. In such examples, if UE 315-c is transmitting an uplink signal when UE 315-d is receiving a downlink signal, UE 315-c may interfere with UE 315-d, thereby generating CLI. In these examples, UE 315-c may be referred to as an attacker UE, and UE 315-d may be referred to as a victim UE. In some cases, victim UE 315-b may perform measurements of the CLI generated by attacker UE 315-c. In some cases, such measurements may be referred to as inter-cell CLI measurements. In some examples, one or more timing parameters associated with the CLI measurement may differ from the timing of the victim UE 315-d.

[0119] The victim UE 315 may not have access to or knowledge of the TDD configuration, uplink or downlink TTI order, or SRS transmission configuration of the aggressor UE 315. The victim UE 315 may measure CLI based on the network CLI resource configuration. That is, the victim UE may not perform blind detection of CLI and then perform CLI measurement before the base station 305 provides the CLI resource configuration. CLI may occur between UEs 315 within the same cell, as described in detail in the example of FIG. Figure 3A As shown, or occurs between different cellular cells, as shown in Figure 3B shown.

[0120] Figure 4An example of a wireless communication system 400 that supports cross-link interference measurements in multiple directions in accordance with aspects of the present disclosure is illustrated. In some examples, the wireless communication system 400 can implement aspects of the wireless communication systems 100, 200, and 300.

[0121] In some examples, the base station 405 can communicate with the UE 415 using one or more beam pairs. For example, the base station 405 and the UE 415 can communicate using a transmit beam 420 and a receive beam 425-b. However, the UE 415 may be able to select between multiple candidate transmit beams 420 or receive beams 425 to improve the reception of downlink signaling in the serving cell. For example, for each downlink beam 420, the UE 415 may perform a beam sweeping procedure (e.g., may try to use multiple receive beams 425 to receive a reference signal transmitted via the transmit beam 420) to find a preferred receive beam 425-b. The selected receive beam 425 and its corresponding transmit beam 420 may be referred to as a beam pair. The UE 415 may monitor each candidate transmit beam 420 using each receive beam 425 over time. When the target receive beam (e.g., receive beam 425-c) measures a reference signal from base station 405 on transmit beam 420 (the reference signal has a stronger signal strength than the reference signal transmitted on transmit beam 420 and received via current receive beam 425-b), UE 415 can switch to the new receive beam 425 (e.g., the beam pair can be changed). In some examples, if UE 415 measures a weak or weakening transmit-receive point reference signal strength on receive beam 425, UE 415 can change its receive beam 425.

[0122] In some wireless communication systems, the UE 415 may measure and report the CLI to the base station 405 in the direction of only one receive beam 425 (e.g., in the direction of the current or active receive beam 425-b used to receive downlink data and signaling from the serving cell). In such an example, the UE 415 and the base station 405 may only know the current interference level (e.g., the CLI on the receive beam 425-b), but may not know whether or how much CLI is experienced on other receive beams 425 (e.g., receive beam 425-a and receive beam 425-c). Therefore, the base station 405 may not have relevant or current information about whether a beam switch from receive beam 425-b to receive beam 425-c will result in improved communication with the UE 415 or reduced signal quality. For example, the UE 415 may measure and report the CLI on the receive beam 425-b. To improve communication, base station 405 may initiate a beam pair change, resulting in a receive beam change from receive beam 425-b to receive beam 425-c. However, UE 115-c may experience a higher level of CLI on receive beam 425-c than on receive beam 425-b. Base station 405 may therefore improve communication, more efficiently select beam pairs, update TDD configuration of victim UE 415 or aggressor UE 415, or a combination thereof based on CLI information for multiple receive beams 425.

[0123] In some examples, as described herein, UE 415 may experience CLI in multiple directions. In such examples, UE 415 may measure and report CLI across multiple receive beams 425. Base station 405 may use the reported CLI for multiple receive beams 425 to improve communication quality. For example, base station 405 may determine how CLI affects potential downlink transmissions on different transmit beams 420 or beam pairs, and may therefore be able to select preferred transmit beams 420, receive beams 425, beam pairs, etc. for communicating with UE 415. The selected or preferred beam or beam pair may result in improved communication quality, reduced system latency, improved system reliability, and improved user experience. In some examples, base station 405 may be able to determine the interference conditions of UE 415 (e.g., instead of only identifying interference from a specific direction), and base station 405 may adjust TDD configuration, adjust scheduling, update transmit power at UE 415, etc. based on the determined interference conditions. Such scheduling and transmit power adjustments or updates may result in improved system efficiency, reduced interference, reduced system latency, and improved user experience. In some examples, UE 415 may be able to detect the presence of other UEs 415 based on measured CLI, which may improve sidelink applications. In some examples, UE 415 may perform positioning enhancement procedures by determining the relative positions of other UEs 415 (e.g., based on angle information determined by measuring CLI in multiple directions).

[0124] UE 415 may perform CLI measurements in multiple directions on CLI measurement resources configured by base station 405. In some examples, UE 415 may determine which receive beams 425 to use for measuring CLI, either implicitly (e.g., using receive beams used to receive other signals) or based on explicit indications received from base station 405.

[0125] Figure 5 An example of a wireless communication system 500 that supports cross-link interference measurements in multiple directions in accordance with aspects of the present disclosure is illustrated. In some examples, the wireless communication system 500 can implement aspects of the wireless communication systems 100, 200, 300, and 400.

[0126] The base station 505 may communicate with the UE 515 via one or more beam pairs. For example, the base station 505 may be able to communicate with the UE 515 via one or more transmit beams (e.g., transmit beam 520-a, transmit beam 520-b, transmit beam 520-c, etc.). The UE 515 may be able to communicate with the base station 505 via one or more receive beams 525 (e.g., receive beam 525-a, receive beam 525-b, receive beam 525-c, etc.). The base station 505 and the UE 515 may communicate using an active beam pair (e.g., transmit beam 520-b and receive beam 525-b). In some examples, the base station 505 may transmit a channel state information reference signal (CSI-RS) to the UE 515 on multiple transmit beams 520, and the UE 515 may perform CSI measurements on the CSI-RS received on the multiple receive beams 525. For example, the base station 505 may transmit a first CSI-RS on a transmit beam 520-a, a second CSI-RS on a transmit beam 520-b, and a third CSI-RS on a transmit beam 520-c. The UE 515 may receive and measure each reference signal using the receive beam 525-a, the receive beam 525-b, and the receive beam 525-c. Similarly, the UE 515 may receive a synchronization signal (e.g., one or more SSBs) using one or more receive beams 525. In some examples, a CSI-RS resource, an SSB, or other reference signal resource may be associated with a receive beam 525 such that by identifying a particular resource, the UE 515 may identify a particular receive beam 525. The association may be based on measuring that the CSI-RS or SSB has a higher signal quality (e.g., RSRP or SINR) in the associated receive beam than measurements in other receive beams.

[0127] In some examples, signals transmitted on one or more beam pairs may reflect off of object 510-a. For example, base station 505 may transmit a downlink signal (e.g., a reference signal) on transmit beam 520-a. The downlink signal may reflect off of object 510-a and be received by UE 515 on one or more receive beams 520. In such examples, signal strength may vary between beam pairs. For example, transmit beam 520-a and receive beam 525-a may be an active beam pair (e.g., may have a higher signal quality than a more directionally aligned beam pair (such as transmit beam 520-b and receive beam 520-b)). Similarly, transmit beam 520-c and receive beam 525-c may be selected as an active beam pair with high signal quality due to reflective object 510-b. Since changes in beam pairs may be conducive to high signal quality and reliable communication, base station 505 may obtain CLI information about multiple directions, which may be beneficial. For example, the UE 515 may experience CLI on the receive beam 525-b. The base station 505 may therefore determine to initiate a beam change procedure to communicate with the UE 515 on the transmit beam 520-a and the receive beam 525-a. However, if the UE 515 also experiences CLI on the receive beam 525-a, this beam pair change may result in a reduction in communication quality, an increase in interference, an increase in system latency, a reduction in user experience, etc. The base station 505 may improve communication reliability and system efficiency by adjusting the TDD configuration, selecting a beam pair, etc. based on the complete CLI information of the UE 515 in multiple directions (e.g., instead of the limited CLI information of the UE in a single direction).

[0128] In order to measure and report CLI in multiple directions, the UE 515 may use multiple receive beams 525 to measure CLI. The UE 515 may perform layer 3 CLI measurements on multiple receive beams 525, and may report CLI measurement resources from the same attacking UE in multiple beam directions. In some examples, the UE 515 may implicitly determine which receive beams 525 are to be used to measure CLI on the CLI measurement resources. For example, the UE 515 may determine the receive beam 525 it uses to perform downlink receive beam sweeping (e.g., the receive beam 525 that the UE 515 uses to perform beam sweeping operations when determining a preferred or current receive beam 525), and may use the same receive beam or the same beam sweeping mode on the CLI measurement resources to perform multi-directional CLI measurements. The UE 515 may determine which receive beams 525 it uses to monitor PDSCH, PDCCH, fault detection reference signal, CSI-RS, SSB, or a combination thereof, and may select the same receive beam 525 for performing CLI measurements. In some examples, the base station 505 can explicitly indicate to the UE 515 which receive beams the UE 515 will use to perform multi-directional CLI measurements. For example, the base station 505 can indicate (e.g., for each CLI measurement resource) the beam direction of the UE 515 monitoring the RS or SSB, and the UE 515 can use the same receive beam 525 used or previously used to monitor the RS or SS. In some examples, the explicit indication can include an index of the RS resource or SSB, and the UE 515 can select a receive beam 525 for monitoring the indicated RS resource or SSB for performing CLI measurements.

[0129] Performing CLI measurements may include measuring an SRS transmitted by an attacker UE. For example, UE 515 may measure RSRP from an attacker UE during a configured CLI measurement resource. In some examples, performing measurements may include measuring received signal strengths from multiple attacker UEs. For example, UE 515 may measure RSSI of multiple attacker UEs.

[0130] After measuring the CLI in multiple directions, the UE 515 can report the multi-directional CLI information to the base station 505. The CLI report can include CLI measurement values ​​measured on all selected downlink receive beams 525 or a subset of selected downlink receive beams 525 (e.g., with the highest CLI measurement value), indicators of reference signals, SSBs, etc., which are associated with the transmit beam 520 paired with the receive beam 525.

[0131] The UE 515 is configured to measure the CLI or a subset 525 of the selected receive beams, the UE 515 is configured to measure the CLI (eg, the reference signal or SSB associated with the receive beam that experiences the highest CLI measurement value), or both.

[0132] Multi-directional CLI measurement may include various optional procedures. For example, for a set of SSBs or CSI-RS, the UE 515 may pair a transmit beam 520 transmitting the SSBs or CSI-RS with a receive beam 525 based on a receive beam sweep. In such examples, the CLI report may indicate the paired transmit beam 520 associated with the receive beam 525 experiencing CLI. In some examples, the UE 515 may determine that it uses a receive beam 525 associated with a set of SSBs or CSI-RS to measure CLI on a specific CLI measurement resource. In such examples, the UE 515 may include an indication of the associated SSBs or CSI-RS in the CLI report. In some examples, the UE 515 may simply measure the CLI on each configured CLI measurement resource using a receive beam 525 selected as described herein (e.g., implicitly selected or explicitly indicated by the base station 505), and may report CLI measurement values ​​for each configured CLI measurement resource (or a subset of CLI measurement resources with the highest CLI measurement value or a CLI measurement value that meets a threshold).

[0133] Figure 6 An example of a process flow 600 for supporting cross-link interference measurements in multiple directions in accordance with aspects of the present disclosure is illustrated. In some examples, the process flow 600 can implement aspects of the wireless communication system 100. The process flow 600 can include a base station 605, a UE 615-a, and a UE 615-b, which can be examples of corresponding devices described with reference to the wireless communication systems 100, 200, 300, 400, and 500.

[0134] At 620, the base station 605-a may transmit a configuration message to the UE 615-a. The configuration message may include an indication of one or more resources for receiving synchronization signals, CSI-RS, etc. The base station 605 may indicate a first set of resources (e.g., CLI measurement resources) for measuring the CLI at 525. At 620, the base station 605 may indicate a second set of resources, a set of receive beams for monitoring CSI-RS or SSB, etc., or a combination thereof. The second set of resources may therefore include CSI-RS resources, synchronization signal resources, SSBs, PBCH resources, failure detection reference signal resources, or any combination thereof.

[0135] At 625-a and 625-b, the base station 605 may transmit a CLI configuration message. The CLI configuration message may indicate a CLI measurement resource. For example, at 625-a, the base station 605 may transmit CLI configuration information to the UE 615-b. The CLI configuration information may include an instruction to transmit a reference signal (e.g., a sounding reference signal) during the indicated CLI measurement resource. At 625-b, the base station 605 may transmit configuration information to the UE 615-a. The CLI configuration information may include an instruction to perform one or more CLI measurements during the indicated CLI measurement resource. In some examples, the CLI configuration information at 625-b may further include an indication (e.g., an index) associated with one or more CSI-RS or SSBs associated with a specific receive beam configured at 620, and the UE 615 uses the specific receive beam to perform CLI measurements on the indicated CLI measurement resource, as described herein at 635.

[0136] At 630, UE 615-a may identify a first set of resources for performing CLI measurements. That is, UE 615-a may identify a first set of CLI measurement resources indicated at 625-b. CLI measurements may be based on periodic resource configuration. CLI reporting as described at 650 may be a layer 3 mechanism.

[0137] In some instances, CLI measurements may be compared to CSI-RS measurements with respect to mobility. CSI-RS measurements or mobility may be based on a CSI-RS resource mobility procedure, where associated SSBs are configured as resources. In such a case, the UE may receive the CSI-RS resource using the timing of the associated SSBs. If the SSBs and CSI-RS are quasi-co-located (e.g., if the quasi-co-location indicator is set to true), the CSI-RS and associated SSBs may be transmitted from the same base station 605, and the UE 615 may receive them in the same direction. However, for the CLI measurement case, the SSBs and CSI-RS may not be transmitted from the same device because the CLI occurs due to a transmission from another UE (e.g., UE 615-b). Therefore, the UE 615 may determine which receive beams to use to measure the CLI.

[0138] At 635, UE 615-a may identify a receive beam set for performing CLI measurements. UE 615-a may implicitly determine the receive beam set. A downlink receive beam may be determined by reference to a quasi-co-located D-type source. Thus, by identifying a specific reference signal, UE 615-a may also identify a corresponding receive beam. For example, the receive beam set for CLI measurement may be the same receive beam that UE 615 is configured to receive (e.g., at 620) one or more types of downlink reference signals, a subset of reference signals, or a combination of different types of reference signals. Different resources may correspond to different transmit beams. Thus, UE 615-a may determine a receive beam set for receiving a downlink signal type (e.g., CSI-RS, SSB, PBCH reference signal, fault detection reference signal, reference signal associated with an activated TCI state or TCI state set, reference signal associated with an active control resource set (CORESET), reference signal associated with a configured CORESET, etc.), and may use the same receive beam set to measure CLI.

[0139] In some examples, UE 615-a may determine a set of signals (e.g., CSI-RS or SSB) on which UE 615-a performs measurements on different downlink transmit beams to support beam selection (e.g., beam pair procedure, transmit beam selection, downlink receive beam selection, etc.). In such examples, UE 615-a may use the receive beam associated with the signal set for CLI measurements.

[0140] In some examples, UE 615-a can determine reference signals associated with CSI-RS, SS / PBCH block resources, or both, which are configured by base station 605 (e.g., at 620) for other layer 1 measurements (e.g., L1-RSRP reports, L1-SINR reports). RSRP and SINR reports can include determining average power and signal-to-noise ratio for resource ports of the same resources (e.g., time-frequency resources used for CLI measurements). In such examples, UE 615-a can perform CLI measurements using receive beams associated with reference signal sets.

[0141] In some examples, UE 615-a can determine one or more reference signals associated with an active TCI state set for a PDSCH. For example, the base station 605 can configure multiple TCI sets to the UE 615-a. Each TCI set may include up to eight TCI states. The base station 605 can activate one of the TCI sets via a control message (e.g., via a media access control element (MAC-CE)). The network can use the activated TCI state for downlink data transmission. The base station 605 can further indicate a specific TCI state for the PDSCH via a downlink control information (DCI) message. The UE 615-a can identify a reference signal associated with an active TCI state or an active TCI set or a combination thereof, and can use a receive beam associated with the identified reference signal for CLI measurement.

[0142] In some examples, the UE 615-a may identify a reference signal associated with an activated TCI state of an active CORESET configured to the UE 615-a (e.g., at 620). The TCI state of the active CORESET may be used for PDCCH monitoring in each CORESET. In such examples, the UE 615-a may use the receive beam set for PDCCH monitoring in each CORESET, or for monitoring a reference signal associated with an activated TCI state of the active CORESET, or a combination thereof, and may perform CLI measurements using the selected receive beam set.

[0143] In some examples, UE 615-a may identify reference signals included in TCI states (e.g., indicated in a configuration message) in each configured CORESET. These TCI states may include a subset of TCI states configured for the PDSCH. UE 615-a may perform CLI measurements using a receive beam associated with the identified reference signal.

[0144] In some examples, UE 615-a may identify a fault detection reference signal. The fault detection reference signal may be indicated by a configuration message. UE 615-a may determine a receive beam set for receiving the fault detection reference signal and may perform CLI measurements using the receive beam.

[0145] UE 615-a may determine any of the above reference signals or any combination thereof to identify a set of receive beams on which to perform CLI measurements. In some examples, UE 615-a may also utilize a beam sweeping pattern associated with a reference signal or an order of receive beams associated with the identified reference signal, and may perform CLI using the identified pattern or order. The beam sweeping pattern may be configured by base station 605.

[0146] In some examples, the base station 605 can explicitly indicate which receive beams the UE 615-a is to use to perform CLI measurements. For example, the base station 605 can indicate a reference signal list indicating the downlink receive beams on which the CLI measurement resources are to be measured. In some examples, the base station 605 can configure each CLI measurement resource (e.g., at 625-b) using a different index of the associated CSI-RS or SSB, indicating the downlink receive beams on which the UE 615-a is to measure CLI.

[0147] For example, in some examples, the base station 605 may provide a list of reference signals indicating the associated receive beams on which the UE 615-a will measure the CLI. The reference signal may be an SSB or a CSI-RS. The base station 605 may include the corresponding index of the SSB or CSI-RS in the configuration of the CLI measurement resource (e.g., at 625-b). In some examples, the base station 605 may transmit CLI configuration information in an RRC measurement object for layer 3 CLI measurement and reporting, including the CSI-RS or SSB index. Additionally or alternatively, the base station 605 may configure (e.g., in the same CLI configuration message or a separate configuration message at 625-b) a time domain mode for the UE 615-a to sweep the indicated downlink receive beam at the time when the UE measures the CLI measurement resource. In some examples, the beam sweeping mode may be implemented autonomously by the UE 615-a, determined based on a previously configured beam sweeping mode (e.g., for beam refinement or beam selection procedures), or may be pre-configured. For example, UE 615-a may determine to sweep a first receive beam associated with a first CSI-RS, a second receive beam associated with a second CSI-RS, a third receive beam associated with a third CSI-RS, etc. Thus, UE 615-a may apply a time domain beam sweeping pattern to a receive beam set associated with the indicated CSI-RS or SSB list, and may perform CLI measurements on at least a portion of the configured CLI measurement resources on the receive beam set in the order and timing of the time domain beam sweeping pattern.

[0148] In some examples, the base station 605 may configure multiple CLI measurement resources (e.g., at 625-b), and each CLI measurement resource may be configured using a different index of the associated CSI-RS or SSB. The index may indicate to the UE 615-a the receive beam associated with the indexed CSI-RS or SSB. Thus, if a first CLI measurement resource is configured with an index of a first CSI-RS associated with a first receive beam, and a second CLI measurement resource is configured with an index of a second CSI-RS associated with a second receive beam, the UE 615-a may perform CLI measurements using the first receive beam during the first CLI measurement resource, and perform CLI measurements using the second receive beam during the second CLI measurement resource. In some examples, multiple CLI measurement resources may correspond to CLI generated by the same attacking UE 615-b. This may allow the UE 615-a to measure CLI on multiple receive beams across multiple CLI measurement resources (e.g., one receive beam per CLI measurement resource for each attacking UE 615-b). In some examples, each CLI measurement resource can be configured in a different transmission time interval (TTI) (e.g., a different OFDM symbol), which can allow the UE 615-a to perform measurements in only one downlink receive beam direction at a time. In some examples, an RRC signaling information element (IE) can indicate a CLI measurement resource set. A CLI measurement resource set can be defined to include a configuration of multiple resource sets, CSI-RS, an index of SSB, or both. In some examples, in order to indicate a CLI measurement resource or an index reference signal or both, the base station 605 can indicate periodicity, can assume the same periodicity as another type of signal (e.g., CSI-RS, SSB, etc.), can indicate an offset from other scheduling signals, can indicate the same or different sequence, frequency, bandwidth, etc. Such indications (e.g., periodicity, offset, bandwidth, etc.) can reduce signaling overhead, packet size, etc., resulting in improved throughput and system efficiency.

[0149] At 640 , UE 615 - b may transmit one or more reference signals (eg, SRS) as indicated by base station 605 at 625 - a .

[0150] At 645 , the UE 615 - a may perform CLI measurements using the receive beam set identified at 635 during at least a portion of the first set of resources.

[0151] At 650, UE 615-a may transmit a CLI report to UE 605. The measurement report may include a CLI measurement value, an indication of a receive beam on which the CLI was measured, an indication of a reference signal associated with the receive beam, or any combination thereof.

[0152] In some examples, the CLI report may include an indication of CLI measurements for all receive beams. In some examples, the CLI report may include a subset of CLI measurement values. For example, the UE 615-a may select a subset of the highest CLI measurement values ​​up to a fixed or maximum number of CLI measurement values, and may include the subset of CLI measurement values. In some examples, the UE 615-a may select a subset of the highest CLI measurement values ​​that meet a threshold or minimum CLI measurement value, and may include the selected subset of CLI measurement values ​​in the CLI report (e.g., regardless of how many CLI measurement values ​​meet the threshold CLI measurement value).

[0153] In some examples, the CLI report may include a set of indices of CSI-RS or SSBs, or both, associated with receive beams experiencing the highest level of CLI. For example, CLI measurement values ​​for CLI on a subset of receive beams may satisfy a threshold CLI measurement value. Alternatively, the CLI report may include a fixed number of receive beams that have higher CLI measurement values ​​than the remaining measured receive beams. In either case, the UE 615-a may include indices of CSI-RS or SSBs associated with identified receive beams experiencing higher CLI. Reporting reference signal indices (e.g., instead of actual CLI measurement values) may allow the UE 615-a to save power and computational resources because the UE 615-a may avoid storing measured CLI measurement values. Conversely, the UE 615-a may perform CLI measurements, identify reference signals associated with receive beams experiencing higher CLI measurement values, and then discard the CLI measurement values ​​(e.g., instead of storing or reporting the CLI measurement values).

[0154] In some examples, the CLI report may include multiple strongest CLI measurement values ​​and corresponding indices of the CSI-RS and SSB associated with the receive beam on which the strongest CLI measurement value was obtained.

[0155] The CLI report may include only a single CLI measurement value, or a single index of a CSI-RS or SSB, or a single index and a CLI measurement value that is higher than any other CLI measurement value. In some examples, UE 615-a may include only CLI measurement values ​​that meet a threshold. That is, if the CLI measurement value meets the threshold, then the CLI measurement value, the index of the associated CSI-RS or SSB, or both are included in the CLI report.

[0156] In some examples, the UE 615-a may perform a filtering procedure. In such examples, the UE 615-a may filter the instantaneous CLI measurement before transmitting the CLI report at 650. Thus, the UE 615-a may filter the instantaneous CLI measurement (e.g., a window filter, a finite impulse response (FIR) filter, an infinite impulse response (IIR) filter) and then transmit the filtered CLI measurement to the base station 605.

[0157] Figure 7 A block diagram 700 of a device 705 supporting cross-link interference measurements in multiple directions according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of a UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 720. The device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0158] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to cross-link interference measurements in multiple directions, etc.). The information may be passed to other components of the device 705. The receiver 710 may be a reference Fig.10 Examples of aspects of the described transceiver 1020. The receiver 710 may utilize a single antenna or a collection of antennas.

[0159] The communication manager 715 may identify a first resource set for performing a cross-link interference measurement; identify a receive beam set for performing the cross-link interference measurement on the identified first resource set; perform the cross-link interference measurement using the receive beam set during at least a portion of the first resource set; and transmit a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to a base station. The communication manager 715 may be an example of aspects of the communication manager 1010 described herein.

[0160] The communication manager 715 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 715 or its subcomponents may be performed by a general purpose processor, a DSP, an application specific integrated circuit (ASIC), an FPGA or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0161] The communication manager 715 or its subcomponents may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0162] The transmitter 720 may transmit signals generated by other components of the device 705. In some examples, the transmitter 720 may be co-located with the receiver 710 in a transceiver module. For example, the transmitter 720 may be a reference Fig.10 Examples of aspects of the described transceiver 1020. The transmitter 720 may utilize a single antenna or a collection of antennas.

[0163] In some examples, the communication manager 715 may be implemented as an integrated circuit or chipset for a mobile device modem, and the receiver 710 and transmitter 720 may be implemented as analog components (e.g., amplifiers, filters, antennas) coupled to the mobile device modem to enable wireless transmission and reception on one or more frequency bands.

[0164] The communication manager 715 as described herein may be implemented to achieve one or more potential advantages. An implementation may allow devices to efficiently report CLI, thereby improving configuration of TDD, reducing interference, improving adjustment of beam pairs, reducing system latency, and improving user experience.

[0165] Based on the techniques for efficiently communicating the maximum number of layers for a device as described herein, a processor of the UE 115 (eg, controlling the receiver 710, the transmitter 720, or the like) may be configured to communicate the maximum number of layers for a device as described herein. Fig.10 The described transceiver 1020) can improve system efficiency and reduce unnecessary processing at the device.

[0166] Figure 8 A block diagram 800 of a device 805 supporting cross-link interference measurements in multiple directions according to aspects of the present disclosure is shown. The device 805 may be an example of aspects of the device 705 or UE 115 as described herein. The device 805 may include a receiver 810, a communication manager 815, and a transmitter 840. The device 805 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0167] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to cross-link interference measurements in multiple directions, etc.). The information may be passed to other components of the device 805. The receiver 810 may be a reference Fig.10 Examples of aspects of the described transceiver 1020. The receiver 810 may utilize a single antenna or a collection of antennas.

[0168] The communication manager 815 may be an example of aspects of the communication manager 715 as described herein. The communication manager 815 may include a resource identification manager 820, a beam identification manager 825, a CLI measurement manager 830, and a CLI reporting manager 835. The communication manager 815 may be an example of aspects of the communication manager 1010 as described herein.

[0169] Resource identification manager 820 may identify a first set of resources for performing cross-link interference measurements.

[0170] The beam identification manager 825 may identify a receive beam set for performing the cross-link interference measurement on the identified first resource set.

[0171] The CLI measurement manager 830 may perform cross-link interference measurement using the receive beam set during at least a portion of the first set of resources.

[0172] The CLI report manager 835 may transmit a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to the base station.

[0173] The transmitter 840 may transmit signals generated by other components of the device 805. In some examples, the transmitter 840 may be co-located with the receiver 810 in a transceiver module. For example, the transmitter 840 may be a reference Fig.10 Examples of aspects of the described transceiver 1020. The transmitter 840 may utilize a single antenna or a collection of antennas.

[0174] Fig. 9 A block diagram 900 of a communication manager 905 supporting cross-link interference measurements in multiple directions in accordance with aspects of the present disclosure is shown. The communication manager 905 may be an example of aspects of the communication manager 715, the communication manager 815, or the communication manager 1010 described herein. The communication manager 905 may include a resource identification manager 910, a beam identification manager 915, a CLI measurement manager 920, a CLI reporting manager 925, a resource configuration manager 930, a TCI state manager 940, and a filtering manager 945. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0175] Resource identification manager 910 may identify a first set of resources for performing cross-link interference measurements.

[0176] The beam identification manager 915 may identify a receive beam set for performing the cross-link interference measurement on the identified first resource set. In some examples, the beam identification manager 915 may determine an association between the receive beam set and one or more downlink signals associated with the second resource set.

[0177] The CLI measurement manager 920 may perform cross-link interference measurements using the receive beam set during at least a portion of the first resource set. In some examples, the CLI measurement manager 920 may measure one or more reference signals transmitted by the second UE. In some examples, the CLI measurement manager 920 may measure received power on the first resource set.

[0178] The CLI report manager 925 may transmit a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to the base station. In some cases, a first set of cross-link interference measurement values ​​associated with a first subset of the receive beam set, wherein the first set of cross-link interference measurement values ​​is higher than a second set of cross-link interference measurement values ​​associated with a second subset of the receive beam set. In some cases, one or more indices of a synchronization signal block or a channel state information reference signal associated with the receive beam set. In some cases, one or more indices of a synchronization signal block or a channel state information reference signal associated with the first subset of the receive beam set, wherein the cross-link interference measurement for the first subset of the receive beam set is higher than the cross-link interference measurement for the second subset of the receive beam set.

[0179] The resource configuration manager 930 may receive a configuration message indicating the second resource set, the receive beam set, or both from the base station. In some examples, the resource configuration manager 930 may receive a radio resource control message configuring the first resource set from the base station, the radio resource control message including an indication of the one or more downlink signals associated with the receive beam set, wherein identifying the receive beam set for performing the cross-link interference measurement is based on receiving the radio resource control message. In some examples, the resource configuration manager 930 may identify a beam sweeping pattern for the receive beam set associated with the one or more downlink signals, wherein performing the cross-link interference measurement using the receive beam set during at least the portion of the first resource set is based on the beam sweeping pattern for the receive beam set.

[0180] In some examples, the resource configuration manager 930 may receive a control message configuring the first resource set from the base station, the control message including an index associated with a synchronization signal block or a channel state information reference signal for determining at least one receive beam in the receive beam set for each corresponding resource of the first resource set. In some cases, the one or more downlink signals include a synchronization signal block reference signal, a channel state information reference signal, or a combination thereof. In some cases, each resource in the first resource set is located in a different transmission time interval. In some cases, the control information includes an information element of radio resource control information. In some cases, the second resource set includes channel state information reference signal resources, synchronization signal resources, physical broadcast channel resources, fault detection reference signal resources, or a combination thereof.

[0181] The TCI state manager 940 may receive a configuration message from the base station indicating a transmission configuration indicator (TCI) state set associated with a physical downlink shared channel. In some examples, the TCI state manager 940 may receive a control message from the base station including an instruction to activate a subset of the TCI state set for communication on the physical downlink shared channel. In some examples, the TCI state manager 940 may identify that the first resource set is based on a reference signal configured for the subset of the TCI state set. In some examples, the TCI state manager 940 may identify that the first resource set is based on one or more reference signals associated with the TCI state set of the control resource set.

[0182] The filtering manager 945 may perform a filtering procedure on the cross-link interference measurement set, wherein transmitting the cross-link interference report is based on performing the filtering procedure.

[0183] Fig.10 A diagram of a system 1000 including a device 1005 that supports cross-link interference measurements in multiple directions according to various aspects of the present disclosure is shown. The device 1005 may be an example of a device 705, a device 805, or a UE 115 as described herein or include components of these devices. The device 1005 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 1010, an I / O controller 1015, a transceiver 1020, an antenna 1025, a memory 1030, and a processor 1040. These components may be in electronic communication via one or more buses (e.g., a bus 1045).

[0184] The communication manager 1010 may identify a first resource set for performing cross-link interference measurements; identify a receive beam set for performing the cross-link interference measurements on the identified first resource set; perform cross-link interference measurements using the receive beam set during at least a portion of the first resource set; and transmit a cross-link interference report to a base station including an indication of the cross-link interference measurement for the receive beam set.

[0185] I / O controller 1015 can manage input and output signals for device 1005. I / O controller 1015 can also manage peripheral devices that are not integrated into device 1005. In some cases, I / O controller 1015 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1015 can utilize an operating system, such as Or another known operating system. In other cases, I / O controller 1015 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1015 may be implemented as part of a processor. In some cases, a user may interact with device 1005 via I / O controller 1015 or via hardware components controlled by I / O controller 1015.

[0186] The transceiver 1020 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1020 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1020 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0187] In some cases, a wireless device may include a single antenna 1025. However, in some cases, the device may have more than one antenna 1025, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0188] Memory 1030 may include RAM and ROM. Memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 1030 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0189] Processor 1040 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1040 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into processor 1040. Processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1030) to cause device 1005 to perform various functions (e.g., functions or tasks of supporting cross-link interference measurements in multiple directions).

[0190] The code 1035 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1035 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1035 may not be directly executed by the processor 1040, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0191] Fig.11 A block diagram 1100 of a device 1105 supporting cross-link interference measurements in multiple directions according to aspects of the present disclosure is shown. The device 1105 may be an example of aspects of a base station 105 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1120. The device 1105 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0192] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to cross-link interference measurements in multiple directions, etc.). The information may be passed to other components of the device 1105. The receiver 1110 may be a reference Fig.14 Examples of aspects of the described transceiver 1420. The receiver 1110 may utilize a single antenna or a collection of antennas.

[0193] The communication manager 1115 may configure a first resource set for a first UE to perform a cross-link interference measurement; identify a downlink signal set associated with a receive beam set to be used by the first UE to perform the cross-link interference measurement on the identified first resource set; and receive a cross-link interference report from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam set. The communication manager 1115 may be an example of aspects of the communication manager 1410 described herein.

[0194] The communication manager 1115 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1115 or its subcomponents may be performed by a general purpose processor, a DSP, an application specific integrated circuit (ASIC), an FPGA or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0195] The communication manager 1115 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1115 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1115 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0196] The transmitter 1120 may transmit signals generated by other components of the device 1105. In some examples, the transmitter 1120 may be co-located with the receiver 1110 in a transceiver module. For example, the transmitter 1120 may be a reference Fig.14 Examples of aspects of the described transceiver 1420. The transmitter 1120 may utilize a single antenna or a collection of antennas.

[0197] Fig.12 A block diagram 1200 of a device 1205 supporting cross-link interference measurements in multiple directions according to aspects of the present disclosure is shown. The device 1205 may be an example of aspects of the device 1105 or base station 105 as described herein. The device 1205 may include a receiver 1210, a communication manager 1215, and a transmitter 1235. The device 1205 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0198] The receiver 1210 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to cross-link interference measurements in multiple directions, etc.). The information may be passed to other components of the device 1205. The receiver 1210 may be a reference Fig.14 Examples of aspects of the described transceiver 1420. The receiver 1210 may utilize a single antenna or a collection of antennas.

[0199] The communication manager 1215 may be an example of aspects of the communication manager 1115 as described herein. The communication manager 1215 may include a resource configuration manager 1220, a beam identification manager 1225, and a CLI reporting manager 1230. The communication manager 1215 may be an example of aspects of the communication manager 1410 described herein.

[0200] The resource configuration manager 1220 may configure a first set of resources for the first UE to perform cross-link interference measurement.

[0201] The beam identification manager 1225 may identify a set of downlink signals associated with a set of receive beams to be used by the first UE to perform the cross-link interference measurement on the identified first set of resources.

[0202] The CLI report manager 1230 may receive, from the first UE, a cross-link interference report including an indication of the cross-link interference measurement for at least a subset of the receive beam set.

[0203] Transmitter 1235 may transmit signals generated by other components of device 1205. In some examples, transmitter 1235 may be co-located with receiver 1210 in a transceiver module. For example, transmitter 1235 may be a reference Fig.14 Examples of various aspects of the described transceiver 1420. The transmitter 1235 may utilize a single antenna or a collection of antennas.

[0204] Fig.13 A block diagram 1300 of a communication manager 1305 supporting cross-link interference measurements in multiple directions in accordance with aspects of the present disclosure is shown. The communication manager 1305 may be an example of aspects of the communication manager 1115, the communication manager 1215, or the communication manager 1410 described herein. The communication manager 1305 may include a resource configuration manager 1310, a beam identification manager 1315, a CLI reporting manager 1320, and a TCI status manager 1325. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0205] The resource configuration manager 1310 may configure a first resource set for a first UE for performing cross-link interference measurements. In some examples, the resource configuration manager 1310 may transmit a configuration message indicating a second resource set, the receive beam set, or both to the first UE. In some examples, the resource configuration manager 1310 may transmit a radio resource control message configuring the first resource set to the first UE, the radio resource control message including an indication of the downlink signal set associated with the receive beam set, wherein identifying the downlink signal set associated with the receive beam set to be used by the first UE to perform the cross-link interference measurement is based on transmitting the radio resource control message. In some examples, the resource configuration manager 1310 may transmit an indication of a beam sweeping pattern of the receive beam set associated with the downlink signal set to the first UE, wherein identifying the downlink signal set associated with the receive beam set is based on the beam sweeping pattern used for the receive beam set.

[0206] In some examples, the resource configuration manager 1310 may transmit a control message configuring the first resource set to the first UE, the control message including an index associated with a synchronization signal block or a channel state information reference signal for determining at least one receive beam in the receive beam set for each corresponding resource of the first resource set. In some cases, the downlink signal includes a channel state information reference signal, a synchronization signal, a physical broadcast channel, a fault detection reference signal, or a combination thereof. In some cases, the downlink signal includes a synchronization signal, a channel state information reference signal, or a combination thereof. In some cases, each resource in the first resource set is located in a different transmission time interval. In some cases, the control message includes an information element of a radio resource control message.

[0207] The beam identification manager 1315 may identify a set of downlink signals associated with a set of receive beams to be used by the first UE to perform the cross-link interference measurement on the identified first set of resources.

[0208] The CLI report manager 1320 may receive from the first UE a cross-link interference report including an indication of the cross-link interference measurement for at least one subset of the receive beam set. In some cases, a first set of cross-link interference measurement values ​​associated with a first subset of the receive beam set, wherein the first set of cross-link interference measurement values ​​is higher than a second set of cross-link interference measurement values ​​associated with a second subset of the receive beam set. In some cases, one or more indices of a synchronization signal block or a channel state information reference signal associated with the receive beam set. In some cases, one or more indices of a synchronization signal block or a channel state information reference signal associated with a first subset of the first resource set associated with the first subset of the receive beam set, wherein the cross-link interference measurement for the first subset of the receive beam set is higher than the cross-link interference measurement for the second subset of the receive beam set.

[0209] The TCI state manager 1325 may transmit a configuration message indicating a transmission configuration indicator (TCI) state set associated with a physical downlink shared channel to the first UE. In some examples, the TCI state manager 1325 may transmit a control message including an instruction to activate a subset of the TCI state set for communication on the physical downlink shared channel to the first UE. In some examples, the TCI state manager 1325 may identify that the downlink signal set is based on a reference signal configured for the subset of the TCI state set. In some examples, the TCI state manager 1325 may identify that the downlink signal set is based on one or more reference signals associated with the TCI state set of a control resource set.

[0210] Fig.14 A diagram of a system 1400 including a device 1405 that supports cross-link interference measurements in multiple directions in accordance with various aspects of the present disclosure is shown. The device 1405 may be an example of or include components of the device 1105, device 1205, or base station 105 as described herein. The device 1405 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 1410, a network communication manager 1415, a transceiver 1420, an antenna 1425, a memory 1430, a processor 1440, and an inter-station communication manager 1445. These components may be in electronic communication via one or more buses (e.g., bus 1450).

[0211] The communication manager 1410 may configure a first resource set for a first UE for performing cross-link interference measurements; identify a downlink signal set associated with a receive beam set to be used by the first UE to perform the cross-link interference measurement on the identified first resource set; and receive a cross-link interference report from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam set.

[0212] The network communications manager 1415 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1415 may manage the delivery of data communications for client devices, such as one or more UEs 115.

[0213] The transceiver 1420 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1420 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1420 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0214] In some cases, a wireless device may include a single antenna 1425. However, in some cases, the device may have more than one antenna 1425, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0215] Memory 1430 may include RAM, ROM, or a combination thereof. Memory 1430 may store computer readable code 1435 including instructions that, when executed by a processor (e.g., processor 1440), cause the device to perform various functions described herein. In some cases, memory 1430 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0216] Processor 1440 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1440 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1440. Processor 1440 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1430) to cause device 1405 to perform various functions (e.g., functions or tasks of supporting cross-link interference measurements in multiple directions).

[0217] The inter-site communication manager 1445 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1445 may coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1445 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0218] The code 1435 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1435 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1435 may not be directly executed by the processor 1440, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0219] Fig.15 A flow chart illustrating a method 1500 for supporting cross-link interference measurements in multiple directions according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. Figures 7 to 10 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0220] At 1505, the UE may identify a first resource set for performing cross-link interference measurements. For example, the base station may transmit an RRC message to the UE configuring the first resource set. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be as described with reference to Figures 7 to 10 Describes the resource identification manager to perform.

[0221] At 1510, the UE may identify a receive beam set for performing the cross-link interference measurement on the identified first resource set. For example, the UE may identify a set of downlink signals associated with the receive beam set used. In some examples, the base station may transmit an RRC message that may include an indication of one or more downlink signals associated with the receive beam set. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Figures 7 to 10 The beam identification manager described is executed.

[0222] At 1515, the UE may perform cross-link interference measurements using the receive beam set during at least a portion of the first set of resources. For example, the UE may measure SRS transmitted from one or more other UEs on some or all of the first set of resources. In some examples, the UE may measure RSSI (e.g., for all devices transmitting on the first set of resources). In some examples, the UE may measure RSRP (e.g., for a single UE transmitting on the resources). The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed as described with reference to Figures 7 to 10 The CLI measurement manager described above is used to perform

[0223] At 1520, the UE may transmit a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to the base station. For example, the base station may receive a CLI report including a CLI measurement, an index of one or more resources associated with the CLI measurement, or a combination thereof. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be performed as described with reference to Figures 7 to 10 The CLI Report Manager described here is used to execute.

[0224] Fig.16 A flow chart illustrating a method 1600 for supporting cross-link interference measurements in multiple directions according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1600 may be implemented by a base station 105 or components thereof as described herein. Figures 11 to 14 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0225] At 1605, the base station may configure a first resource set for the first UE to perform cross-link interference measurement. For example, the base station may transmit an RRC message configuring the first resource set. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be as described with reference to Figures 11 to 14 The resource configuration manager described is used to perform the

[0226] At 1610, the base station may identify a set of downlink signals associated with a receive beam set to be used by the first UE to perform the cross-link interference measurement on the identified first set of resources. For example, the base station may configure a downlink signal (e.g., a reference signal) to be associated with a receive beam set (e.g., for a beam selection procedure, CSI reporting, etc.). In some examples, the base station may transmit an RRC message that may include an indication of one or more downlink signals associated with the receive beam set. The operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed as described with reference to Figures 11 to 14 The beam identification manager described is executed.

[0227] At 1615, the base station may receive a cross-link interference report from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam set. For example, the base station may receive a CLI report including a CLI measurement, an index of one or more resources associated with the CLI measurement, or a combination thereof. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be performed as described with reference to Figures 11 to 14 The CLI Report Manager described here is used to execute.

[0228] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0229] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applied to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0230] The information and signals described herein may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0231] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0232] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations fall within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0233] Computer readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that facilitates computer program to transfer from one place to another place.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.As an example and not limitation, non-transient computer readable medium can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or can be used to carry or store instruction or data structure form of desired program code means and can be accessed by general or special-purpose computer or general or special-purpose processor any other non-transient medium.Similarly, any connection is also properly referred to as computer readable medium.For example, if software is transmitted from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then the coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of computer readable medium. Disk and disc as used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0234] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0235] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between similar components. If only the first reference number is used in the specification, the description may apply to any of the similar components having the same first reference number regardless of the second reference number, or other subsequent reference numbers.

[0236] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than other examples." This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0237] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the universal principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment UE, comprising: identifying a first set of resources for performing cross-link interference measurements; identifying a receive beam set for performing the cross-link interference measurement on the identified first set of resources; performing cross-link interference measurements using the receive beam set during at least a portion of the first set of resources, wherein performing the cross-link interference measurements comprises measuring one or more reference signals transmitted by a second UE; as well as A cross-link interference report including an indication of the cross-link interference measurement for the receive beam set is transmitted to a network device.

2. The method of claim 1, further comprising: An association between the receive beam set and one or more downlink signals is determined, the one or more downlink signals being associated with a second set of resources.

3. The method of claim 2, further comprising: A configuration message is received from the network device indicating the second set of resources, the set of receive beams, or both.

4. The method of claim 2, wherein the second resource set comprises channel state information reference signal resources, synchronization signal resources, physical broadcast channel resources, fault detection reference signal resources, or a combination thereof.

5. The method of claim 2, further comprising: receiving a configuration message from the network device indicating a transmission configuration indicator (TCI) state set associated with a physical downlink shared channel; as well as A control message including an instruction to activate a subset of the TCI state set for communicating on the physical downlink shared channel is received from the network device.

6. The method of claim 5, wherein: Identifying the first set of resources is based at least in part on a reference signal configured for the subset of the TCI state set.

7. The method of claim 5, wherein: Identifying the first set of resources is based at least in part on one or more reference signals associated with the TCI state set that controls a set of resources.

8. The method of claim 2, further comprising: A radio resource control message configuring the first resource set is received from the network device, the radio resource control message including an indication of the one or more downlink signals associated with the receive beam set, wherein identifying the receive beam set for performing the cross-link interference measurement is based at least in part on receiving the radio resource control message.

9. The method of claim 8, wherein the one or more downlink signals include a synchronization signal block reference signal, a channel state information reference signal, or a combination thereof.

10. The method of claim 8, further comprising: Identify a beam sweep pattern for the receive beam set associated with the one or more downlink signals, wherein performing cross-link interference measurements using the receive beam set during at least the portion of the first set of resources is based at least in part on the beam sweep pattern for the receive beam set.

11. The method of claim 1, further comprising: A control message for configuring the first resource set is received from the network device, the control message comprising an index associated with a synchronization signal block or a channel state information reference signal for determining at least one receive beam in the receive beam set for each corresponding resource of the first resource set.

12. The method of claim 11, wherein each resource in the first set of resources is located in a different transmission time interval.

13. The method of claim 11, wherein the control message comprises an information element of a radio resource control message.

14. A method as claimed in claim 1, wherein the cross-link interference report includes a first cross-link interference measurement value set associated with a first subset of the receive beam set, wherein the first cross-link interference measurement value set is higher than a second cross-link interference measurement value set associated with a second subset of the receive beam set.

15. The method of claim 14, wherein the cross-link interference report further comprises one or more indices of a synchronization signal block or a channel state information reference signal associated with the receive beam set.

16. A method as claimed in claim 1, wherein the cross-link interference report includes one or more indices of synchronization signal blocks or channel state information reference signals associated with a first subset of the receive beam set, wherein the cross-link interference measurement value for the first subset of the receive beam set is higher than the cross-link interference measurement for the second subset of the receive beam set.

17. The method of claim 1, further comprising: A filtering procedure is performed on the cross-link interference measurement set, wherein transmitting the cross-link interference report is based at least in part on performing the filtering procedure.

18. The method of claim 1, wherein performing cross-link interference measurements comprises: Measure the reference signal received power RSRP, the received signal strength indicator RSSI or the signal to interference plus noise ratio SINR.

19. The method of claim 1, wherein performing cross-link interference measurements comprises: The received power on the first set of resources is measured.

20. A method for wireless communication at a network device, comprising: configuring a first resource set for a first user equipment UE for performing cross-link interference measurement; identifying a set of downlink signals associated with a set of receive beams to be used by the first UE to perform the cross-link interference measurement on the identified first set of resources; as well as A cross-link interference report is received from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam sets, wherein the cross-link interference measurement is performed at least in part by measuring one or more reference signals transmitted by a second UE.

21. The method of claim 20, further comprising: A configuration message indicating a second resource set, the receive beam set, or both is transmitted to the first UE.

22. The method of claim 20, wherein the downlink signal comprises a channel state information reference signal, a synchronization signal, a physical broadcast channel, a fault detection reference signal, or a combination thereof.

23. The method of claim 20, further comprising: transmitting a configuration message indicating a transmission configuration indicator (TCI) state set associated with a physical downlink shared channel to the first UE; as well as A control message including an instruction to activate a subset of the TCI state set for communication on the physical downlink shared channel is transmitted to the first UE.

24. The method of claim 23, wherein: Identifying the set of downlink signals is based at least in part on a reference signal configured for the subset of the TCI state set.

25. The method of claim 23, wherein: Identifying the set of downlink signals is based at least in part on one or more reference signals associated with the set of TCI states for a set of control resources.

26. The method of claim 20, further comprising: A radio resource control message is transmitted to the first UE to configure the first resource set, the radio resource control message including an indication of the downlink signal set associated with the receive beam set, wherein identifying the downlink signal set associated with the receive beam set to be used by the first UE to perform the cross-link interference measurement is based at least in part on transmitting the radio resource control message.

27. The method of claim 26, wherein the downlink signal comprises a synchronization signal, a channel state information reference signal, or a combination thereof.

28. The method of claim 26, further comprising: An indication of a beam sweep pattern for the receive beam set associated with the downlink signal set is transmitted to the first UE, wherein identifying the downlink signal set associated with the receive beam set is based at least in part on the beam sweep pattern for the receive beam set.

29. The method of claim 20, further comprising: A control message for configuring the first resource set is transmitted to the first UE, the control message comprising an index associated with a synchronization signal block or a channel state information reference signal for determining at least one receive beam in the receive beam set for each corresponding resource of the first resource set.

30. The method of claim 29, wherein each resource in the first set of resources is located in a different transmission time interval.

31. The method of claim 29, wherein the control message comprises an information element of a radio resource control message.

32. A method as claimed in claim 20, wherein the cross-link interference report includes a first set of cross-link interference measurement values ​​associated with a first subset of the receive beam set, wherein the first set of cross-link interference measurement values ​​is higher than a second set of cross-link interference measurement values ​​associated with a second subset of the receive beam set.

33. The method of claim 32, wherein the cross-link interference report further comprises one or more indices of a synchronization signal block or a channel state information reference signal associated with the receive beam set.

34. A method as claimed in claim 20, wherein the cross-link interference report includes one or more indices of a synchronization signal block or a channel state information reference signal associated with a first subset of the first resource set associated with a first subset of the receive beam set, wherein the cross-link interference measurement value for the first subset of the receive beam set is higher than the cross-link interference measurement for the second subset of the receive beam set.

35. An apparatus for wireless communication at a user equipment (UE), comprising: processor; a memory coupled to the processor; as well as instructions stored in the memory and executable by the processor, the instructions causing the apparatus to: identifying a first set of resources for performing cross-link interference measurements; identifying a receive beam set for performing the cross-link interference measurement on the identified first set of resources; performing cross-link interference measurements using the receive beam set during at least a portion of the first set of resources, wherein performing the cross-link interference measurements comprises measuring one or more reference signals transmitted by a second UE; as well as A cross-link interference report including an indication of the cross-link interference measurement for the receive beam set is transmitted to a network device.

36. An apparatus for wireless communication at a network device, comprising: processor; a memory coupled to the processor; as well as instructions stored in the memory and executable by the processor, the instructions causing the apparatus to: configuring a first resource set for a first user equipment UE for performing cross-link interference measurement; identifying a set of downlink signals associated with a set of receive beams to be used by the first UE to perform the cross-link interference measurement on the identified first set of resources; as well as A cross-link interference report is received from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam sets, wherein the cross-link interference measurement is performed at least in part by measuring one or more reference signals transmitted by a second UE.

37. An apparatus for wireless communication at a user equipment UE, comprising: means for identifying a first set of resources for performing cross-link interference measurements; means for identifying a set of receive beams for performing said cross-link interference measurement on the identified first set of resources; means for performing cross-link interference measurements using the receive beam set during at least a portion of the first set of resources, wherein performing the cross-link interference measurements comprises measuring one or more reference signals transmitted by a second UE; as well as Means for transmitting a cross-link interference report including an indication of the cross-link interference measurement for the receive beam set to a network device.

38. A device for wireless communication at a network device, comprising: means for configuring, for a first user equipment UE, a first set of resources for performing cross-link interference measurements; means for identifying a set of downlink signals associated with a set of receive beams to be used by the first UE to perform the cross-link interference measurement on the identified first set of resources; as well as Means for receiving, from the first UE, a cross-link interference report including an indication of the cross-link interference measurement for at least a subset of the receive beam sets, wherein the cross-link interference measurement is performed at least in part by measuring one or more reference signals transmitted by a second UE.

39. A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor for: identifying a first set of resources for performing cross-link interference measurements; identifying a receive beam set for performing the cross-link interference measurement on the identified first set of resources; performing cross-link interference measurements using the receive beam set during at least a portion of the first set of resources, wherein performing the cross-link interference measurements comprises measuring one or more reference signals transmitted by a second UE; and A cross-link interference report including an indication of the cross-link interference measurement for the receive beam set is transmitted to a network device.

40. A non-transitory computer readable medium storing code for wireless communication at a network device, the code comprising instructions executable by a processor to: configuring a first resource set for a first user equipment UE for performing cross-link interference measurement; identifying a set of downlink signals associated with a set of receive beams to be used by the first UE to perform the cross-link interference measurement on the identified first set of resources; and A cross-link interference report is received from the first UE including an indication of the cross-link interference measurement for at least a subset of the receive beam sets, wherein the cross-link interference measurement is performed at least in part by measuring one or more reference signals transmitted by a second UE.

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