Communication method

Abstract

Embodiments of the present disclosure relate to a method, an apparatus, and a computer-readable medium for cross-link interference (CLI) management using a beam sweep procedure. According to an embodiment of the present disclosure, a first network device receives a CLI measurement setting from a second network device. The CLI measurement setting indicates at least one of a set of communication resources for downlink transmission of the second network device or a set of CLI reference signals (RS) transmitted by the second network device using a transmission beam sweep. The first network device further performs measurements on at least one of the set of communication resources or the set of CLI RS using a reception beam sweep.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of communications, and more particularly, to methods, apparatuses, and computer-readable media for cross-link interference (CLI) management using a beam sweep procedure.

Background Art

[0002] With the development of communication technologies, the deployment density of network devices and cells has become quite high. Further, to improve communication efficiency, network devices are designed to operate in full-duplex mode. In this case, as the density of wireless signals in a certain space increases, interference between communication devices may occur frequently. For example, in full-duplex communication mode, a network device may simultaneously transmit downlink (DL) data and receive uplink (UL) data. Therefore, there may be a CLI situation where, while a network device is receiving a UL transmission, another adjacent network device is performing a DL transmission, which may affect the UL reception. In one solution, the network device removes CLI between terminal devices by negotiating the synchronization mechanisms of the UL and DL data transmissions with each other. However, in a duplex communication mode, it is impossible to eliminate CLI based only on this mechanism. Further, CLI management between terminal devices is also an important aspect.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Generally, exemplary embodiments of the present disclosure relate to methods, apparatuses, and computer-readable media for CL management using a beam sweep procedure.

Means for Solving the Problems

[0004] In a first aspect, a communication method is provided. In the method, a first network device receives CLI measurement settings from a second network device. The CLI measurement settings indicate at least one of a set of communication resources for downlink transmission of the second network device, or a set of CLI reference signals (RS) transmitted by the second network device using transmission beam sweeping. The first network device performs measurements on at least one of the set of communication resources or the set of CLI RS using reception beam sweeping.

[0005] In a second aspect, a communication method is provided. In the method, a second network device transmits CLI measurement settings to a first network device. The CLI measurement settings indicate at least one of a set of communication resources for downlink transmission of the second network device, or a set of CLI RS. The second network device transmits at least one of the set of communication resources or the set of CLI RS in transmission beam sweeping.

[0006] In a third aspect, a communication method is provided. In the method, a first terminal device receives CLI measurement settings from a first network device. The CLI measurement settings indicate at least one of a set of communication resources for uplink transmission of a second terminal device, or a set of CLI RS transmitted by the second terminal device using transmission beam sweeping. The first terminal device performs measurements on at least one of the set of communication resources or the set of CLI RS using reception beam sweeping.

[0007] In a fourth aspect, a communication method is provided. In the method, a second terminal device receives CLI measurement settings from a second network device. The CLI measurement settings indicate at least one of a set of communication resources for uplink transmission of the second terminal device or a set of CLI RSs. The second terminal device transmits at least one of the set of communication resources or the set of CLI RSs using a transmission beam sweep.

[0008] In a fifth aspect, a communication method is provided. In the method, a first network device transmits CLI measurement settings to a first terminal device, and the CLI measurement settings indicate at least one of a set of communication resources for uplink transmission of a second terminal device or a set of CLI RSs transmitted by the second terminal device using a transmission beam sweep. The first network device receives a CLI measurement report from the first terminal device.

[0009] In a fourth aspect, a network device is provided. The network device includes a processor and a memory coupled to the processor and storing instructions, and when the instructions are executed by the processor, the method according to any one of the first aspect to the first aspect, the second aspect, and the fifth aspect is executed.

[0010] In a fifth aspect, a terminal device is provided. The terminal device includes a processor and a memory coupled to the processor and storing instructions, and when the instructions are executed by the processor, the methods according to the third aspect and the fourth aspect are executed.

[0011] In a sixth aspect, a computer-readable medium storing instructions for causing at least one processor to execute the method according to any one of the first aspect to the fifth aspect when executed on the at least one processor is provided.

[0012] It should be understood that the summary section of the invention is not intended to identify the important or fundamental features of the exemplary embodiments of the present disclosure, nor to limit the scope of the present disclosure. Other features of the present disclosure should be readily understood from the following description.

Brief Description of the Drawings

[0013] Hereinafter, several exemplary embodiments will be described with reference to the drawings.

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[0027] In the figure, the same or similar reference numerals represent the same or similar elements.

DETAILED DESCRIPTION OF THE INVENTION

[0028] Here, some embodiments are referred to explain the principles of the present disclosure. It should be understood that these embodiments are described for illustrative purposes only and are intended to assist those skilled in the art in understanding and implementing the present disclosure, without suggesting any limitation on the scope of the present disclosure. The disclosure described herein can be implemented in various ways different from the methods described below.

[0029] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0030] As used herein, the term "terminal device" refers to any device having wireless or wired communication capabilities. Examples of terminal devices include user equipment (UE), personal computers, desktops, mobile phones, cellular phones, smartphones, personal digital assistants (PDAs), portable computers, tablets, wearable devices, Internet of Things (IoT) devices, Ultra-reliable and Low Latency Communications (URLLC) devices, Internet of Everything (IoE) devices, machine type communication (MTC) devices, vehicle-mounted devices for vehicle-to-everything (V2X) communication (where X means pedestrian, vehicle, or infrastructure / network), Integrated Access and Backhaul (IAB), Small Data Transmission (SDT), mobility, Multicast and Broadcast Services (MBS), positioning, dynamic / flexible duplexing in commercial networks, devices for reduced capability (RedCap), devices of spacecraft or aircraft in a Non-terrestrial network (NTN) including High Altitude Platforms (HAP) and satellites that include Unmanned Aircraft Systems (UAS), Extended Reality (XR) devices including different types of reality such as Augmented Reality (AR), Mixed Reality (MR), Virtual Reality (VR), unmanned aerial vehicles (UAVs), which are aircraft generally known as drones and do not require a human pilot, high speed trains (HST: high speedDevices on a train , imaging devices such as digital cameras, sensors, gaming devices, music storage / playback devices, or Internet devices that enable wireless / wired Internet access and browsing, etc. are included, but not limited thereto. The "terminal device" can further have a multicast / broadcast function and support public safety, mission critical, V2X applications, transparent IPv4 / IPv6 multicast delivery, IPTV, smart TV, wireless services, wireless software delivery, group communication, and IoT applications. Also, one or more subscriber identity modules (SIMs), known as multi-SIM, may be incorporated. The term "terminal device" may be used interchangeably with UE, mobile station, subscriber equipment, mobile terminal, user terminal, or wireless device.

[0031] As used herein, the term "network device" refers to a device capable of providing or hosting a cell or coverage with which a terminal device can communicate. Examples of network devices include, but are not limited to, Node B (NodeB or NB), Evolved NodeB (eNodeB or eNB), Next Generation NodeB (gNB), transmission reception point (TRP), remote radio unit (RRU), radio head (RH), remote radio head (RRH), IAB node, femto node, pico node and other low-power nodes, reconfigurable intelligent surface (RIS), network control repeater, etc.

[0032] The terminal device or network device may have the ability of artificial intelligence (AI) or machine learning. Generally, it includes a trained model from a large number of data collected for specific functions and can be used to predict some information. The terminal device or network device may operate, for example, on several frequency ranges such as FR1 (410 MHz to 7125 MHz), FR2 (24.25 GHz to 71 GHz), from 71 GHz to 114 GHz, frequency bands greater than 100 GHz, and terahertz (THz). Furthermore, it can operate on licensed / unlicensed / shared spectrum. The terminal device may have two or more connections with the network device under a multi-radio dual connectivity (MR-DC) application scenario. The terminal device or network device can operate in full-duplex, flexible-duplex, cross-split duplex modes.

[0033] The network device may have the functions of network energy saving, self-organizing networks (SON) / minimization of drive tests (MDT). The terminal may have a power-saving function.

[0034] Embodiments of the present disclosure may be implemented in test equipment such as, for example, signal generators, signal analyzers, spectrum analyzers, network analyzers, test terminal devices, test network devices, channel emulators, etc.

[0035] Embodiments of the present disclosure may be executed according to any generation of communication protocols known currently or developed in the future. Examples of communication protocols include, but are not limited to, the first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, fifth generation (5G) communication protocols, 5.5G, 5G-Advanced networks, or sixth generation (6G) networks.

[0036] In one embodiment, the terminal device may be connected to a first network device and a second network device. One of the first network device and the second network device may be a master node, and the other may be a secondary node. The first network device and the second network device may use different radio access technologies (RATs). In one embodiment, the first network device may be a first RAT device, and the second network device may be a second RAT device. In one embodiment, the first RAT device is an eNB, and the second RAT device is a gNB. Information regarding different RATs may be transmitted from at least one of the first network device and the second network device to the terminal device. In one embodiment, the first information may be transmitted from the first network device to the terminal device, and the second information may be transmitted from the second network device directly or via the first network device to the terminal device. In one embodiment, information regarding the settings of the terminal device set by the second network device may be transmitted from the second network device via the first network device. Information regarding the re - settings of the terminal device set by the second network device may be transmitted from the second network device directly or via the first network device to the terminal device.

[0037] As used herein, the singular forms "a", "an" and "the" include the plural forms as well, unless the context clearly dictates otherwise. The terms "comprising" and its variants should be understood as open - ended terms meaning "including, but not limited to". The term "based on" should be understood as "based at least in part on". The terms "one embodiment" and "an embodiment" should be understood as "at least one embodiment". The term "another embodiment" should be understood as "at least one other embodiment". Terms such as "first", "second", etc. may refer to different or the same objects. There may be other explicit and implicit definitions hereinafter.

[0038] In some instances, a value, procedure, or device may be referred to as “optimal,” “lowest,” “highest,” “minimum,” “maximum,” and the like. Such descriptions are intended to indicate that a selection is possible from among a plurality of functional alternatives being used, and it will be understood that such a selection need not be better, smaller, higher, or more preferred than other selections.

[0039] As used herein, the term “circuit” may mean a hardware circuit and / or a combination of a hardware circuit and software. For example, a circuit may be a combination of analog and / or digital hardware circuits and software / firmware. As yet another example, a circuit may be any portion of a hardware processor having software including a digital signal processor, software, and one or more memories that cooperate to cause a device such as a terminal device or a network device to perform various functions. In yet another example, a circuit may be a hardware circuit and / or a processor such as a microprocessor or a portion thereof that requires software / firmware for operation, although the software may not be present if not required for operation. As used herein, the term circuit encompasses merely a hardware circuit or processor, or a portion of a hardware circuit or processor, and the implementation of its (or their) accompanying software and / or firmware.

[0040] As described above, as the density of wireless signals in a certain space increases, especially when the network device operates in full-duplex mode, CLIs may occur frequently. One solution for CLI management between network devices is for the network devices to negotiate UL-DL transmission settings with each other. However, the negotiation of UL-DL transmission is static CLI management that cannot address randomly occurring CLI problems. Furthermore, conventional solutions mainly employ layer 3 reports based on periodic CLI measurement resources with layer 3 filtering. These solutions focus on the long-term statistics of interference and are not suitable for enabling fast adjustment according to interference variations. Additionally, the beam optimization procedure of the communication device is only used to select a beam pair between the network device and the terminal device for data communication and is not used for CLI management.

[0041] Exemplary embodiments of the present disclosure propose a mechanism for CLI management using a beam sweep procedure. In this mechanism, a first network device receives a cross-link interference (CLI) measurement setting from a second network device. The CLI measurement setting indicates at least one of a set of communication resources for downlink transmission of the second network device or a set of CLI reference signals (RS) transmitted by the second network device using a transmission beam sweep. The first network device further performs measurements on at least one of the set of communication resources or the set of CLI RS using a reception beam sweep.

[0042] In this way, by using the beam sweep procedure, the network device can determine the CLI level associated with the spatial beam of the network device, and accordingly, the network device can remove the CLI from other network devices by adjusting the beams used by the other network devices. Thus, the removal or management of the CLI can be achieved by layer 1 reporting, which is more flexible than layer 3 reporting.

[0043] FIG. 1 is a diagram showing an exemplary environment 100 in which an exemplary embodiment of the present disclosure can be implemented.

[0044] Environment 100, which can be part of a communication network, includes a first network device 110, a second network device 120, and a plurality of terminal devices including terminal device 130. In some embodiments, the first network device 110 and the second network device 120 may operate in full-duplex mode. For example, in some situations, the network device 110 may receive uplink data transmissions from the terminal device 130 and simultaneously transmit downlink data transmissions to another terminal device. The first network device 110 and the second network device 120 can perform data transmissions in different spatial directions based on multi-beam capabilities. For clarity of explanation, a set of receiving beams 115 of the first network device 110 and a set of transmitting beams 125 of the second network device 120 are shown. For example, the first network device 110 may perform UL reception via a beam among the set of receiving beams 115, and the second network device 120 may perform DL transmission via a beam among the set of transmitting beams 125. Further, in some situations, when the receiving beam of the first network device 110 and the transmitting beam of the second network device 120 overlap in space, the UL reception of the first network device 110 may be interfered with when the second network device 120 performs DL transmission.

[0045] The number of terminal devices and network devices is shown within environment 100 for illustrative purposes only and does not imply any limitation as to the scope of the present disclosure. In some embodiments, environment 100 may include another terminal device that communicates information with another network device.

[0046] Communication within the environment 100 may conform to any suitable communication standard or protocol, existing or to be developed in the future, such as the Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), LTE-Advanced (LTE-A), 5th Generation (5G) New Radio (NR), Wireless Fidelity (Wi-Fi), and Worldwide Interoperability for Microwave Access (WiMAX) standards. For example, it may employ any suitable communication technology including Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency Division Multiplexing (OFDM), time division multiplexing (TDM), frequency division multiplexing (FDM), code division multiplexing (CDM), Bluetooth, ZigBee, and machine type communication (MTC), enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable low latency communication (URLLC), Carrier Aggregation (CA), Dual Connection (DC), and New Radio Unlicensed (NR-U) technology.

[0047] Figure 2 is a diagram showing a signaling process 200 for CLI management using a beam sweep procedure according to some embodiments of the present disclosure. For the sake of explanation, the process 200 will be described with reference to FIG. 1.

[0048] In the signaling process 200, at step 210, the first network device 110 receives CLI measurement settings from the second network device 120.

[0049] In some embodiments, the first network device 110 may directly receive the CLI measurement settings from the second network device 120 via an Xn or F1 air interface. Additionally or alternatively, the first device 110 may receive the CLI measurement settings from the second network device 120 via an Access and Mobility Management Function (AMF) or Operation Administration and Maintenance (OAM). In this case, the AMF or OAM may obtain the CLI measurement settings from a potential aggressor network device, such as the second network device 120. Then, the AMF or OAM may set the CLI measurement settings for the victim network device, such as the first network device 110.

[0050] The CLI measurement settings indicate at least one of a set of communication resources for downlink transmission of the second network device 120, or a set of CLI reference signals (RS) transmitted by the second network device 120 using a transmission beam sweep.

[0051] In some embodiments, the CLI measurement configuration indicates a set of communication resources for downlink transmission of the second network device 120. The second network device 120 may perform downlink data transmission to the served terminal device on the set of communication resources. Therefore, UL reception on the set of communication resources of the first network device 110 may be interfered with by the second network device 120. The indicated communication resources may include spatial resources, temporal resources, and frequency resources.

[0052] In some embodiments, the CLI measurement configuration may indicate a set of transmission configuration indication (TCI) states. The TCI state among the set of transmission configuration indication (TCI) states corresponds to the transmission beam of the second network device 120 for each frequency subband, and each of the plurality of TCI states may be indicated by a synchronization signal block (SSB) resource index or a non-zero power-channel state information (NZP-CSI)-RS-ResourceId. For example, it is assumed that the TCI state is in quasi-colocation (QCL) with the SSB resource index or NZP-CSI-RS-ResourceId within a subband or a set of resource blocks (RB). Additionally or alternatively, the CLI measurement configuration may further indicate at least one of a set of orthogonal frequency division multiplexing (OFDM) symbols and a set of physical resource blocks (PRB) for each frequency subband of the second network device.

[0053] Therefore, based on the shown set of communication resources, the first network device 110 can know the communication resources affected by the potential CLI and perform CLI measurements accordingly.

[0054] Additionally or alternatively, the CLI measurement configuration may indicate a set of CLI RSs, and the CLI RSs may include at least one of the signals that are SSB and CSI RS specific to the serving cell associated with the second network device 120 and used for the transmission beam sweep of the second device 120. As described above, when performing a receive beam sweep based on the QCL assumption, each of the SSB resource ID and the CSI RS resource ID is associated with its respective beam, and accordingly, each beam can be determined by the first network device 110 when receiving the CLI RS.

[0055] Based on the CLI measurement configuration, the victim network device, e.g., the first network device 110, may determine which RSs to detect and which communication resources to measure for CLI management.

[0056] In step 220, the second network device 120 transmits at least one of the set of communication resources or the set of CLI RSs during the transmission beam sweep. For example, the second network device 120 transmits at least one of the set of communication resources or the set of CLI RSs by sweeping each beam of the transmission beam 125. In some embodiments, the SSB and CSI RS are used for the beam sweep procedure. For example, the transmitting device 120 may transmit the corresponding SSB and CSI RS within a certain transmission beam during the transmission beam sweep. Therefore, this SSB and CSI RS may be adopted as the CLI RS for CLI management, or may be the signal transmitted in the shown set of communication resources. In some embodiments, the second network device 120 may further transmit at least one of the set of communication resources or the set of CLI RSs across a plurality of discontinuous sub-bands.

[0057] Next, in step 230, using the reception beam sweep, the first network device 110 performs measurements on at least one of the set of communication resources or the set of CLI RSs.

[0058] In some embodiments, when the CLI measurement setting indicates a set of communication resources, the first network device 110 measures at least one of the received signal strength indicator (RSSI) and the signal to interference plus noise ratio (SINR) in each communication resource of the set of communication resources.

[0059] Additionally or alternatively, when the CLI measurement configuration indicates a set of CLI RSs, the first network device 110 measures at least one of the reference signal receiving power (RSRP) and the SINR in each of the CLI RSs of the set of CLI RSs. Additionally, in some embodiments, the first network device 110 may further perform measurements across multiple discontinuous sub-bands.

[0060] The results of the above measurements indicate the quality of the signal received from the second network device 120. In a sense, the higher the RSRP of the received CLI RS or the higher the RSSI detected on the communication resource, the greater the influence from the corresponding transmission beam of the second network device 120. Based on the above measurements, the first network device 110 determines one or more transmission beams of the second network device 120 that significantly interfere with UL reception, and may further report it to the second network device 120 or remove the interference by adjusting the reception beam for UL.

[0061] In some embodiments, the first network device 110 may sort the measured values from the maximum to the minimum or from the minimum to the maximum, and each of the measured values corresponds to the transmission beam of the second network device 120 based on the CLI RS. As described above, the transmission beam may be indicated by the CLI RS resource ID, for example, the ID of the SSB resource or the CSI RS resource for the transmission beam sweep. Thus, the first network device 110 may determine the corresponding transmission beam based on the association between the sorted measured values and the measured CLI RS (ID) or the measured communication resource, and the communication resource may carry the SSB, CSI RS, or other DL signals / channels. For this reason, the first network device 110 may determine the number (e.g., L) of transmission beams corresponding to the same number of CLI RSs having the maximum or minimum measured values.

[0062] Additionally or alternatively, there may be one or more predetermined measurement thresholds, and the first network device 110 can find the number of transmission beams corresponding to the same number of CLI RSs having the maximum or minimum measurement value by comparing the measurement value with the measurement threshold. Additionally or alternatively, the first network device 110 may determine the number of transmission beams corresponding to the same number of CLI RSs having the maximum or minimum measurement value by any other method.

[0063] Next, to avoid the CLI, the first network device 110 may report to the second network device 120 a transmission beam corresponding to the CLI RS having the maximum or minimum measurement value. In some embodiments, the first network device 110 transmits to the second network device 120 a CLI measurement report generated based on the measurement. In some embodiments, the CLI measurement report may include a first number of CLI RS resource IDs associated with the transmission beam of the second network device 120. Each CLI RS resource ID corresponds to a CLI RS resource having a first number of measurement values of the measurements performed on the set of CLI RSs. In some embodiments, each of the first number of measurement values is greater than a first threshold. In this case, the CLI RS ID may include an SSB resource ID and a CSI RS resource ID corresponding to the transmission beam of the second network device 120. At the second network device 120, based on the CLI RS resource IDs in the CLI measurement report, a transmission beam that significantly affects the UL reception of the first network device 110 can be determined. Thus, to remove the CLI, the second network device 120 may use, for DL transmission, a transmission beam other than the beams identified by these CLI RS resource IDs. In some embodiments, the CLI measurement report may include only the CLI RS resource ID corresponding to the maximum measurement value. Also, the CLI measurement report may further include measurement values corresponding to the first number of CLI RS resource IDs. For example, these measurement values may be indicated based on one absolute value and a plurality of relative values. For example, a maximum value and a plurality of offset values with respect to the maximum value.

[0064] Additionally or alternatively, in some embodiments, the CLI measurement report may include a second number of CLI RS resource IDs associated with the transmission beam of the second network device 120. Each CLI RS resource ID corresponds to a CLI RS resource having a second number of measurement values of the measurements performed on the set of CLI RSs. In some embodiments, each of the first number of measurement values is less than a second threshold. At the second network device 120, based on the CLI RS resource IDs in the CLI measurement report, a transmission beam that does not affect or only slightly affects the UL reception of the first network device 110 can be determined. Thus, to remove the CLI, the second network device 120 may use the transmission beam identified by these CLI RS resource IDs for DL transmission. In some embodiments, the CLI measurement report may include only the CLI RS resource IDs corresponding to the minimum measurement values. Also, the CLI measurement report may further include the measurement values corresponding to the second number of CLI RS resource IDs.

[0065] Additionally or alternatively, the CLI RS IDs may be reported for each sub-band. In some embodiments, the CLI measurement report may include CLI RS resource IDs specific to a frequency sub-band, and the CLI RS resource ID corresponds to the CLI RS having the maximum measurement value in the frequency sub-band. For example, the CLI RS resource ID corresponding to each sub-band is reported. For example, a CSI RS Indicator (CRI: CSI RS Indicator) or SSB resource ID with the highest layer 1 - RSRP, layer 1 - SINR, or layer 1 - RSSI for sub-band 1, a CRI or SSB resource ID with the highest layer 1 - RSRP, layer 1 - SINR, or layer 1 - RSSI for sub-band 2, a CRI or SSB resource ID with the highest layer 1 - RSRP, layer 1 - SINR, or layer 1 - RSSI for sub-band n, where n is the number of sub-band numbers for DL.

[0066] Regarding the transmission of CLI measurement reports, they may be transmitted periodically. For example, the transmission period and offset or slot index may be set by the OAM / AMF or exchanged between two network devices. For example, the period is one value within the period set {5ms, 10ms, 20ms, 40ms, 80ms, 160ms, 320ms, 640ms}.

[0067] The timing setting may indicate a period and a time offset or several slot indexes. In some other embodiments, the CLI measurement report may be transmitted on predefined slots, such as slot 2n, 4n, 5n, 9n, etc., where n is a positive integer.

[0068] Additionally or alternatively, the transmission of CLI measurement reports may be turned on or off. For example, if the maximum measured value is greater than the threshold, the first network device 110 transmits the CLI measurement report. Additionally or alternatively, if the measured / reported signal quality is lower than the threshold, the CLI measurement does not need to be transmitted by the first network device 110 within another time interval.

[0069] In addition to or instead of removing the CLI in the second network device 120, the CLI may also be removed in the victim network device, such as the first network device 120.

[0070] In some embodiments, the first network device 110 may determine the received beams significantly affected by the second network device 120 and avoid using these determined received beams for UL reception. In some embodiments, a threshold may be predefined to determine the affected received beams, and if the measured value associated with the received beam exceeds the threshold, this received beam may be determined as the affected received beam.

[0071] In the present disclosure, the above operations for CLI management may also be expressed as follows. TIFF2025522486000002.tif87165 TIFF2025522486000003.tif84166

[0072] Figure 3 is a flowchart 300 of an exemplary method according to some embodiments of the present disclosure.

[0073] In flowchart 300, at 310, an aggressor network device, for example, the second network device 120, transmits CLI measurement settings to a victim network device, for example, the first network device 110, via a backhaul.

[0074] At 320, the aggressor network device transmits a CLI RS for CLI measurement between network devices by sweeping an aggressor transmission beam.

[0075] At 330, the victim network device performs measurements on the CLI RS by sweeping a reception beam.

[0076] In block 340, the victim network device adjusts the reception beam to avoid CLI based on the measurement.

[0077] Additionally or alternatively, in block 350, the victim network device reports a beam ID to the aggressor network device.

[0078] In block 360, the aggressor network device adjusts the transmission beam to avoid CLI based on the report.

[0079] In addition to CLI management between network devices, CLI between terminal devices can also be resolved using a beam sweep procedure. With reference to FIGS. 4 to 5, CLI management between terminal devices will be described.

[0080] FIG. 4 is a diagram showing an exemplary environment 400 in which some embodiments of the present disclosure can be implemented.

[0081] Environment 400, which can be part of a communication network, includes a first terminal device 410, a second terminal device 420, a first network device 430 serving the first terminal device 410, and a second network device 440 serving the second terminal device 420. In some embodiments, the first network device 430 and the second network device 440 may operate in full-duplex mode. For example, in some situations, the first network device 410 may receive uplink data transmissions from a terminal device and simultaneously transmit downlink data transmissions to another terminal device. The first terminal device 410 and the second terminal device 420 can perform data transmissions in different spatial directions based on multi-beam capabilities. For clarity of explanation, a set of receiving beams 415 of the first terminal device 410 and a set of transmitting beams 425 of the second network device 420 are shown. For example, the first terminal device 410 may perform DL reception via a beam among the set of receiving beams 415, and the second terminal device 420 may perform UL transmission via a beam among the set of transmitting beams 425. Further, in some situations, when the receiving beam of the first terminal device 410 and the transmitting beam of the second network device 420 overlap in space, the DL reception of the first terminal device 410 may be interfered with when the second terminal device 420 performs UL transmission.

[0082] The number of terminal devices and network devices is shown in environment 400 for illustrative purposes only and does not imply any limitation on the scope of the present disclosure. In some embodiments, environment 400 may include another terminal device that communicates information with another network device.

[0083] Communication within the environment 400 may follow any suitable communication standard or protocol, either existing or to be developed in the future, such as the Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), LTE-Advanced (LTE-A), 5th Generation (5G) New Radio (NR), Wireless Fidelity (Wi-Fi), and Worldwide Interoperability for Microwave Access (WiMAX) standards. For example, it may employ any suitable communication technology including Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency Division Multiplexing (OFDM), time division multiplexing (TDM), frequency division multiplexing (FDM), code division multiplexing (CDM), Bluetooth, ZigBee, and machine type communication (MTC), enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable low latency communication (URLLC), carrier aggregation (CA), Dual Connection (DC), and New Radio Unlicensed (NR-U) technology.

[0084] FIG. 5 is a diagram showing a signaling process 500 for CLI management using a beam sweep procedure according to some embodiments of the present disclosure. For the sake of explanation, the process 500 will be described with reference to FIG. 4.

[0085] In the signaling process 500, at step 510, the first network device 430 receives CLI measurement settings from the second network device 440. In a manner similar to the signaling process 200, the first network device 430 may receive the CLI measurement settings from the second network device 440 directly via the Xn or F1 air interface, or via the AMF or OAM. The CLI measurement settings indicate at least one of a set of communication resources for uplink transmission of the second terminal device 420, or a set of CLI reference signals (RS) transmitted by the second terminal device 420 using a transmit beam sweep.

[0086] Similarly, in some embodiments, the CLI measurement settings may indicate a set of OFDM symbols, a set of PRBs for each frequency subband, and a set of TCI states. In CLI management between terminal devices, the TCI state among the set of TCI states corresponds to the receive beam of the first terminal device 410 for each frequency subband, and each of the plurality of TCI states may be indicated by a CLI RS resource ID. For example, it is assumed that the TCI state is in quasi - colocation (QCL) with the SRS resource ID, SSB resource index, or NZP - CSI - RS - ResourceId within the subband or RB set. Additionally or alternatively, the CLI measurement settings may further indicate at least one of a set of orthogonal frequency division multiplexing (OFDM) symbols and a set of physical resource blocks (PRBs) for each frequency subband of the second network device.

[0087] Therefore, based on the shown set of communication resources, the first terminal device 410 can know the communication resources affected by the potential CLI and perform CLI measurements accordingly.

[0088] Additionally or alternatively, the CLI measurement configuration may indicate another set of CLI RSs, and the CLI RSs within the other set of CLI RSs may include sounding reference signals (SRSs) for CLI management between terminal devices.

[0089] In step 520, the first network device 430 transmits the CLI measurement configuration to the first terminal device 410 being served. In step 530, the second network device 440 transmits the CLI measurement configuration to the second terminal device 420 being served.

[0090] Based on the CLI measurement configuration, a victim network device, for example, the first terminal device 410, may determine which RSs to detect and which communication resources to measure for CLI management. Accordingly, an aggressor terminal device, for example, the second terminal device 420, may determine which RSs to transmit and on which communication resources to perform data transmission for CLI management.

[0091] Therefore, in step 540, the second terminal device 420 transmits at least one of the set of communication resources or the set of CLI RSs indicated within the CLI measurement settings using a transmission beam sweep. For example, the second terminal device 420 transmits at least one of the set of communication resources or the set of CLI RSs by sweeping each beam of transmission beam 425. For example, the transmitting device 120 may transmit the corresponding SRS within a certain transmission beam during the transmission beam sweep. Thus, the SRS may be adopted as a CLI RS for CLI management, or may be a signal transmitted in the indicated set of communication resources. In some embodiments, the second terminal device 420 may further transmit at least one of the set of communication resources or the set of CLI RSs across a plurality of discontinuous sub-bands.

[0092] Next, in step 550, using a reception beam sweep, the first terminal device 410 performs measurements on at least one of the set of communication resources or the set of CLI RSs.

[0093] In some embodiments, when the CLI measurement settings indicate a set of communication resources, the first terminal device 410 measures at least one of the received signal strength indicator (RSSI) and the signal to interference plus noise ratio (SINR) in each communication resource of the set of communication resources.

[0094] Additionally or alternatively, when the CLI measurement settings indicate a set of CLI RSs, the first terminal device 410 measures at least one of the reference signal receiving power (RSRP) and the SINR in each CLI RS of the set of CLI RSs. Additionally, in some embodiments, the first terminal device 410 may further perform measurements across a plurality of discontinuous sub-bands.

[0095] The result of the above measurement indicates the quality of the signal received from the second terminal device 420. In a sense, the higher the RSRP of the received CLI RS or the higher the RSSI detected on the communication resource, the more interference occurs on the corresponding receive beam of the first terminal device 410. Based on the above measurement, the first terminal device 410 may determine one or more receive beams significantly affected to adjust the receive beam for DL, and further report to the first network device 120 to remove the interference.

[0096] In some embodiments, the first terminal device 410 may sort the measured values for the receive beams from the maximum to the minimum or from the minimum to the maximum, and each of the measured values corresponds to the receive beam of the first terminal device 410. As described above, the receive beam may be indicated by the TCI state ID included in the CLI measurement setting from the first network device 430. Thus, the first terminal device 410 may determine the affected receive beam and report the corresponding TCI state ID to the first network device 430, for example, within the CLI measurement report.

[0097] Next, at step 560, to avoid CLI, the first terminal device 410 may report the determined received beam having the maximum or minimum measurement to the first network device 430. In some embodiments, the first terminal device 410 may determine a third number (e.g., K) of received beams, and these received beams correspond to the K largest measurement values. Then, the first terminal device 410 may report the K TCI state IDs of each of the K received beams to the first network device 430 within the CLI measurement report. In some embodiments, the received beam may also be indicated by the SRI within the CLI measurement report. Additionally, the CLI measurement report may also include the CLI RS resource ID associated with the K largest measurement values, such as the SRS-ResourceConfigID or the CLI-RSSI measurement resource ID. Also, the CLI measurement report may further include the measurement values corresponding to the third number of CLI RS resource IDs.

[0098] In some embodiments, the first terminal device 410 may determine a fourth number (e.g., K) of received beams, and these received beams correspond to the N smallest measurement values. Then, the first terminal device 410 may report the N TCI state IDs of each of the N received beams to the first network device 430 within the CLI measurement report. Additionally, the CLI measurement report may also include the CLI RS resource ID associated with the K largest measurement values, such as the SRS-ResourceConfigID or the CLI-RSSI resource ID. Also, the CLI measurement report may further include the measurement values corresponding to the fourth number of CLI RS resource IDs. The measurement values may include any of layer 1 SRS-RSRP, L1 SINR, and L1 CLI RSSI. For example, these measurement values may be indicated based on one absolute value and multiple relative values. For example, the maximum value and a plurality of offset values relative to the maximum value.

[0099] Additionally or alternatively, the CLI measurement report may include at least one TCI state ID associated with the received beam of the first terminal device 410, and the at least one TCI state ID indicates a preferred received beam for DL reception.

[0100] In some embodiments, the CLI measurement report may include a timing setting for transmitting the CLI measurement report. For example, the CLI measurement report may include a transmission period. Further, the CLI measurement report may include reportConfigType {periodic, sps, aperiodic}.

[0101] Then, in step 570, the first network device 430 may indicate DL settings to the first terminal device 410 based on the CLI measurement settings. The CLI measurement settings may include a TCI state ID indicating a received beam used by the first terminal device 410.

[0102] In some embodiments, if the CLI measurement report includes a set of TCI state IDs, each corresponds to one of a plurality of received beams whose measurement values exceed a threshold. In this case, the downlink settings may indicate a TCI state ID (also referred to as the first TCI state ID) other than the set of TCI state IDs in the CLI measurement report.

[0103] Additionally or alternatively, if the CLI measurement report includes another set of TCI state IDs, each corresponds to one of a plurality of received beams whose measurement values are lower than another threshold. In this case, the downlink settings may indicate to the first terminal device to use the received beam corresponding to the TCI state ID (also referred to as the second TCI state ID) among the another set of TCI state IDs of the CLI measurement report.

[0104] Additionally or alternatively, if the CLI measurement report includes only at least one TCI state ID identifying at least one preferred reception beam, the first network device 430 may directly regard the preferred reception beam among the at least one preferred reception beam as the beam used by the terminal device 410 for DL reception. Further, the first network device 430 may not transmit a downlink configuration, and the first terminal device 410 may automatically use the at least one preferred reception beam. Additionally or alternatively, the first network device 110 may also transmit a downlink configuration including one TCI state ID among the at least one TCI state ID as a confirmation response.

[0105] In some embodiments, the DL configuration may be transmitted or indicated by MAC CE or DCI. In some embodiments, the CLI measurement report is carried by PUCCH or piggybacked by PUSCH, and the information includes at least one of a TCI state ID (which is a preferred beam for DL data reception) having a layer 1 - RSRP or layer 1 - SINR lower than a threshold, K TCI state IDs. Further, a variation report is also conceivable. For example, when four beams are reported, four TCI states, one layer 1 - RSRP, layer 1 - RSSI, layer 1 - SINR, and three differential layer 1 - RSRP, layer 1 - RSSI, layer 1 - SINR can be reported. Further, when a multi - beam report is required and the UE has the ability to receive multiple beams, a group - based reporting method may also be conceivable. The report may be sub - band - based, named as a sub - band CLI measurement report, and this reporting mode is configurable. If not configured, a broadband CLI measurement report is assumed.

[0106] In some embodiments, the CLI measurement report is transmitted periodically, the CLI measurement report is transmitted on a Physical Uplink Control Channel (PUCCH), and the PUCCH is transmitted on the same transmission beam as the transmission beam for at least one of the last Physical Uplink Shared Channel (PUSCH) and the last Physical Random Access Channel (PRACH).

[0107] In one example, for an aperiodic CLI report carried on the PUSCH, the DCI can indicate the PUSCH transmission beam. For example, when only the aperiodic CLI report is triggered, the SRI information can be used for the PUSCH. For example, DCI format 0_1 is used to trigger an aperiodic CLI beam report. For example, the CLI report can be directly set as a CSI report. Additionally or alternatively, a new bit field, such as a CLI request, is added to DCI format 0_1. The number of CLI request bits is based on the upper layer configured parameter cli - reportTriggerSize. The upper layer configured parameter aperiodicCLI - TriggerStateList can be set for the terminal device for aperiodic CLI report triggering. In this case, the DCI may trigger one of the semi - persistent or aperiodic states.

[0108] In some embodiments, the CLI measurement report is transmitted in communication resources set by the first network device and based on communication resources set for SSB transmission. For example, if the first terminal device 410 is configured by the upper layer to transmit PUCCH or PUSCH within a set of symbols of a slot, and the terminal device 410 detects a DCI format 2_0 having a slot format value indicating a slot format (used for data transmission for other terminal devices) with a subset of symbols from the set of symbols as downlink or flexible, or if sub-slot frequency hopping for PUCCH repeated transmission or other types of PUCCH repeated transmission overlap with the SSB slot, the first terminal device 410 can transmit the PUCCH on another sub-band that does not overlap with the SSB. The new sub-band index or frequency / RB set offset for the PUCCH may be set by the RRC or dynamically indicated by the first network device 430.

[0109] FIG. 6A shows a schematic diagram 600A of resource adjustment for transmission of a CLI measurement report according to some embodiments of the present disclosure.

[0110] In the schematic diagram 600A, PUCCH or PUSCH repetition for the CLI measurement report is transmitted on sub-band 1. At the same time, the SSB slot 603 overlaps with the PUCCH repetition 2 603. In this case, the first network device 430 may indicate to the first terminal device 410 to adjust the transmission of the PUCCH 603 from sub-band 1 to sub-band 0, which is also configured for UL transmission.

[0111] In the present disclosure, the above operations for CLI management between terminal devices may also be expressed as follows. TIFF2025522486000004.tif138167 TIFF2025522486000005.tif108167 TIFF2025522486000006.tif198167 TIFF2025522486000007.tif27167

[0112] FIG. 6B shows a flowchart 600B according to some embodiments of the present disclosure.

[0113] At 610, the second network device 440 transmits CLI measurement setting information to the first network device 430 via a backhaul.

[0114] At 620, an aggressor terminal device, such as the second terminal device 420, transmits a CLI RS for CLI measurement between terminal devices by sweeping a transmission beam.

[0115] At 630, a victim terminal device, such as the first terminal device 410, performs measurements on the CLI RS by sweeping a reception beam.

[0116] FIG. 6C shows a flowchart 600C according to some embodiments of the present disclosure.

[0117] At 640, the victim terminal device reports a beam ID to the first network device 430.

[0118] At 650, the first network device 430 adjusts the reception beam of the victim terminal device to avoid the CLI from the aggressor terminal device.

[0119] FIG. 7 is a flowchart of an exemplary method 700 implemented in a network device according to some embodiments of the present disclosure. The method 700 can be implemented in the first network device 110 shown in FIG. 1. For the sake of explanation, the method 700 will be described with reference to FIG. 1. It should be understood that the method 700 may include additional operations not shown and / or may omit some of the operations shown, and the scope of the present disclosure is not limited in this regard.

[0120] At 710, the first network device 110 receives CLI measurement settings from the second network device 120. The CLI measurement settings indicate at least one of a set of communication resources for downlink transmission of the second network device, or a set of CLI RSs transmitted by the second network device 120 using transmit beam sweeping.

[0121] At 720, using receive beam sweeping, the first network device 110 performs measurements on at least one of the set of communication resources or the set of CLI RSs.

[0122] In some embodiments, the first device 110 receiving the CLI measurement settings includes at least one of receiving the CLI measurement settings via the AMF or the OAM.

[0123] In some embodiments, the CLI RSs of the set of CLI RSs include at least one of channel state information (CSI) RSs specific to the serving cell associated with the second network device and synchronization signal blocks (SSBs).

[0124] In some embodiments, the first device 110 performing measurements includes measuring at least one of the reference signal receiving power (RSRP) and the signal to interference plus noise ratio (SINR) of each RS of the set of CLI RSs.

[0125] In some embodiments, the CLI measurement configuration indicating the set of communication resources includes at least one of: a set of orthogonal frequency division multiplexing (OFDM) symbols; a set of physical resource blocks (PRBs) for each frequency sub-band; and a set of transmission configuration indication (TCI) states, each corresponding to a transmission beam of the second network device for each frequency sub-band, where each TCI state is indicated by a CLI RS resource ID.

[0126] In some embodiments, the first device 110 performing the measurement includes performing the measurement across a plurality of non-contiguous sub-bands of the second network device.

[0127] In some embodiments, method 700 further includes transmitting a CLI measurement report generated based on the measurement to a second device 120, the CLI measurement report including a first number of CLI RS resource IDs, where a CLI RS resource ID among the first number of CLI RS resource IDs corresponds to a CLI RS resource having one of the first number of measurement values of the measurement performed on the set of CLI RSs, each of the first number of measurement values is greater than a first threshold, the measurement values include at least one of RSRP, RSSI, and SINR, and the first number is an integer greater than or equal to 1.

[0128] In some embodiments, the CLI measurement report further includes the first number of measurement values respectively corresponding to the CLI RS resource IDs among the first number of CLI RS resource IDs.

[0129] In some embodiments, method 700 further includes transmitting a CLI measurement report generated based on measurements to a second device 120, the CLI measurement report including a second number of CLI RS resource IDs, wherein the CLI RS resource ID among the second number of CLI RS resource IDs corresponds to a CLI RS resource having one of the second number of measurement values of the measurements performed on the set of CLI RSs, each of the second number of measurement values being less than a second threshold, and the second number being an integer greater than or equal to 1.

[0130] In some embodiments, the CLI measurement report further includes the second number of measurement values respectively corresponding to the CLI RS resource IDs among the second number of CLI RS resource IDs.

[0131] In some embodiments, method 700 further includes a first network device 110 transmitting a CLI measurement report generated based on measurements to a second device 120, the CLI measurement report including a CLI RS resource ID specific to a frequency subband, the CLI RS resource ID corresponding to the CLI RS having the maximum measurement value in the frequency subband.

[0132] In some embodiments, transmitting the CLI measurement report includes at least one of: transmitting the CLI measurement report periodically; transmitting the CLI measurement report based on a timing setting received from at least one of OAM and AMF, the timing setting indicating at least one of a period, a slot index, and a time offset; and transmitting the CLI measurement report on a predefined slot.

[0133] In some embodiments, transmitting the CLI measurement report includes the first device 110 transmitting the CLI measurement report in response to a measurement value indicating that the signal quality is greater than a threshold.

[0134] FIG. 8 shows a flowchart of a communication method 800 implemented in a network device according to some embodiments of the present disclosure. The method 800 can be implemented in the second network terminal device 120 shown in FIG. 1. For the sake of explanation, the method 800 will be described with reference to FIG. 1. It should be understood that the method 800 may include additional operations not shown and / or may omit some of the operations shown, and the scope of the present disclosure is not limited in this regard.

[0135] At 810, the second network device 120 transmits CLI measurement settings to the first device 110. The CLI measurement settings indicate at least one of a set of communication resources for downlink transmission of the second network device, or a set of CLI RSs.

[0136] At 820, the second network device 120 transmits at least one of the set of communication resources or the set of CLI RSs in a transmission beam sweep.

[0137] In some embodiments, the second network device 120 transmits the CLI measurement settings via AMF or OAM.

[0138] In some embodiments, the CLI RSs of the set of CLI RSs include at least one of CSI RSs specific to the serving cell associated with the second network device and SSBs.

[0139] In some embodiments, the CLI measurement setting indicating the set of communication resources includes at least one of: a set of orthogonal frequency division multiplexing (OFDM) symbols; a set of physical resource blocks (PRBs) for each frequency subband; and a set of transmission configuration indication (TCI) states, each corresponding to a transmission beam of the second network device for each frequency subband, where each TCI state is indicated by a CLI RS resource ID.

[0140] In some embodiments, the second network device 120 transmitting at least one of the set of communication resources and the set of CLI RS includes transmitting at least one of the set of communication resources and the set of CLI RS across a plurality of discontinuous frequency subbands of the second device.

[0141] In some embodiments, method 800 further includes the second network device 120 receiving, from the first network device 110, a CLI measurement report generated based on measurements, the CLI measurement report including a first number of CLI RS resource IDs, where a CLI RS resource ID of the first number of CLI RS resource IDs corresponds to a CLI RS resource having one of the first number of measurement values of measurements performed on the set of CLI RS, each of the first number of measurement values being greater than a first threshold, the measurement values including at least one of RSRP, RSSI, and SINR, and the first number being an integer greater than or equal to 1.

[0142] In some embodiments, the CLI measurement report further includes the first number of measurement values respectively corresponding to the CLI RS resource IDs of the first number of CLI RS resource IDs.

[0143] In some embodiments, method 800 further includes a second network device receiving, from the first device 110, a CLI measurement report generated based on measurements, the CLI measurement report including a second number of CLI RS resource IDs, where a CLI RS resource ID of the second number of CLI RS resource IDs corresponds to a CLI RS resource having one of the second number of measurement values of the measurements performed on the set of CLI RSs, each of the second number of measurement values being less than a second threshold, and the second number being an integer greater than or equal to 1.

[0144] In some embodiments, the CLI measurement report further includes the second number of measurement values respectively corresponding to the CLI RS resource IDs of the second number of CLI RS resource IDs.

[0145] In some embodiments, method 800 further includes a second network device receiving, from the first device 110, a CLI measurement report generated based on measurements, the CLI measurement report including a CLI RS resource ID specific to a frequency sub-band, the CLI RS resource ID corresponding to a CLI RS having a maximum measurement value in the frequency sub-band.

[0146] In some embodiments, the second network device 120 receives the CLI measurement report periodically, and receives the CLI measurement report based on a timing setting received from at least one of OAM and AMF, the timing setting indicating at least one of a period, a slot index, and a time offset, and receives the CLI measurement report on a predefined slot.

[0147] In some embodiments, method 800 further includes the second network device 120 performing downlink transmission using a transmission beam determined based on the CLI measurement report, the transmission beam corresponding to at least one of a first CLI RS ID other than the first number of CLI RS IDs and a second CLI RS ID of the second number of CLI RS IDs.

[0148] In some embodiments, method 800 further includes transmitting, to a terminal device served by a second network device 120, a downlink configuration indicating a determined transmission beam.

[0149] FIG. 9 shows a flowchart of a communication method 900 implemented in a terminal device according to some embodiments of the present disclosure. Method 900 can be implemented in the first terminal device 410 shown in FIG. 4. For the sake of explanation, method 900 will be described with reference to FIG. 4. It should be understood that method 900 may include additional operations not shown and / or may omit some of the operations shown, and the scope of the present disclosure is not limited in this regard.

[0150] In block 910, the first terminal device 410 receives a CLI measurement configuration from the first network device 430. The CLI measurement configuration indicates at least one of a set of communication resources for uplink transmission of a second terminal device or a set of CLI reference signals (RSs) transmitted by the second terminal device 420 using a transmission beam sweep.

[0151] In block 920, the first terminal device 410 performs measurements on at least one of the set of communication resources or the set of CLI RSs using a reception beam sweep.

[0152] In some embodiments, the CLI RS of the set of CLI RSs includes a sounding reference signal (SRS).

[0153] In some embodiments, the first terminal device 410 performing the measurement includes measuring at least one of the reference signal receiving power (RSRP) and the signal to interference plus noise ratio (SINR) of each RS in the set of CLI RSs.

[0154] In some embodiments, the CLI measurement setting indicating the set of communication resources indicates at least one of a set of orthogonal frequency division multiplexing (OFDM) symbols, a set of physical resource blocks (PRBs) of each frequency subband, and a set of transmission configuration indication (TCI) states each corresponding to a respective receiving beam of the first terminal device and indicated by a CLI RS resource ID.

[0155] In some embodiments, the first terminal device 410 performing the measurement includes measuring at least one of RSSI and SINR of each communication resource in the set of communication resources.

[0156] In some embodiments, method 900 further includes the first terminal device 410 transmitting a CLI measurement report generated based on the measurement to the first network device 430, the CLI measurement report including a first number of TCI state IDs, the TCI state ID among the first number of TCI state IDs corresponding to a CLI RS resource having one of the first number of measurement values of the measurement performed on the set of CLI RSs, each of the first number of measurement values being greater than a first threshold, the measurement values including at least one of RSRP, RSSI, and SINR, and the first number being an integer greater than or equal to 1.

[0157] In some embodiments, the CLI measurement report further includes the first number of measurement values respectively corresponding to the TCI state IDs among the first number of TCI state IDs.

[0158] In some embodiments, method 900 further includes the first terminal device 410 transmitting a CLI measurement report generated based on measurements to the first network device 430, the CLI measurement report including a second number of TCI state IDs, the TCI state IDs among the second number of TCI state IDs corresponding to a CLI RS resource having one of the second number of measurement values of the measurements performed on the set of CLI RSs, each of the second number of measurement values being less than a second threshold, and the second number being an integer greater than or equal to 1.

[0159] In some embodiments, the CLI measurement report further includes the second number of measurement values respectively corresponding to the TCI state IDs among the second number of TCI state IDs.

[0160] In some embodiments, method 900 further includes the first terminal device 410 transmitting a CLI measurement report generated based on measurements to the first network device 430, the CLI measurement report including at least one TCI state ID, and the TCI state IDs among the at least one TCI state ID being associated with the receive beam of the first terminal device.

[0161] In some embodiments, the CLI measurement report includes a timing setting for transmitting the CLI measurement report.

[0162] In some embodiments, method 900 further includes receiving, from the first network device, a downlink setting indicating a receive beam for downlink reception in response to the transmitted CLI measurement report, the receive beam corresponding to at least one of a first TCI state ID other than the first number of TCI state IDs, a second TCI state ID among the second number of TCI state IDs, and a TCI state ID.

[0163] In some embodiments, method 900 further includes performing downlink reception using the indicated received beam.

[0164] FIG. 10 shows a flowchart of a communication method 1000 implemented in a terminal device according to some embodiments of the present disclosure. Method 1000 can be implemented in the second terminal device 420 shown in FIG. 4. For the sake of explanation, method 1000 will be described with reference to FIG. 4. It should be understood that method 800 may include additional operations not shown and / or omit some of the operations shown, and the scope of the present disclosure is not limited in this regard.

[0165] At 1010, the second terminal device 420 receives a cross-link interference (CLI) measurement setting from the second network device. The CLI measurement setting indicates at least one of a set of communication resources for uplink transmission of the second terminal device or a set of CLI reference signals (RS).

[0166] At 1020, the second terminal device 420 transmits at least one of the set of communication resources or the set of CLI RS using a transmission beam sweep.

[0167] In some embodiments, the CLI RS of the set of CLI RS includes a sounding reference signal (SRS).

[0168] In some embodiments, the CLI measurement setting indicating the set of communication resources includes at least one of: a set of orthogonal frequency division multiplexing (OFDM) symbols, a set of physical resource blocks (PRBs) for each frequency sub-band, and a set of transmission configuration indication (TCI) states each corresponding to a respective receiving beam of the first terminal device and indicated by a CLI RS resource ID.

[0169] FIG. 11 shows a flowchart of a communication method 1100 implemented in a network device according to some embodiments of the present disclosure. The method 1100 can be implemented in the first network device 430 shown in FIG. 4. For the sake of explanation, the method 1100 will be described with reference to FIG. 4. It should be understood that the method 800 may include additional operations not shown and / or may omit some of the operations shown, and the scope of the present disclosure is not limited in this regard.

[0170] At 1110, the first network device 430 transmits a CLI measurement setting to the first terminal device 410. The CLI measurement setting indicates at least one of: a set of communication resources for uplink transmission of the second terminal device, or a set of CLI reference signals (RSs) transmitted by the second terminal device 420 using transmit beam sweeping.

[0171] In some embodiments, the CLI measurement report includes a first number of TCI state IDs, where the TCI state IDs among the first number of TCI state IDs correspond to CLI RS resources having one of the first number of measurement values of the measurements performed on the set of CLI RSs, each of the first number of measurement values is greater than a first threshold, the measurement values include at least one of RSRP, RSSI, and SINR, and the first number is an integer greater than or equal to 1.

[0172] In some embodiments, the CLI measurement report further includes the first number of measurement values respectively corresponding to the TCI state IDs among the first number of TCI state IDs.

[0173] In some embodiments, the CLI measurement report includes a second number of TCI state IDs, where the TCI state IDs among the second number of TCI state IDs correspond to a CLI RS resource having one of the second number of measurement values of the measurements performed on the set of CLI RSs, each of the second number of measurement values is less than a second threshold, and the second number is an integer greater than or equal to 1.

[0174] In some embodiments, the CLI measurement report further includes the second number of measurement values respectively corresponding to the TCI state IDs among the second number of TCI state IDs.

[0175] In some embodiments, the CLI measurement report includes at least one TCI state ID, where the TCI state ID among the at least one TCI state ID is associated with the receiving beam of the first terminal device.

[0176] In some embodiments, the CLI measurement report includes a timing setting for transmitting the CLI measurement report.

[0177] In some embodiments, method 1100 further includes, in response to the received CLI measurement report, the first network device 430 transmitting to the first terminal device 410 a downlink setting indicating the receiving beam of the first terminal device, where the indicated receiving beam corresponds to at least one of a first TCI state ID other than the first number of TCI state IDs, a second TCI state ID among the second number of TCI state IDs, and the TCI state ID.

[0178] In some embodiments, the CLI measurement setting is determined based on uplink information received from a second network device, and the uplink information indicates at least uplink resources for a second terminal device.

[0179] In some embodiments, the CLI measurement setting is set by at least one of the AMF and the OAM.

[0180] FIG. 12 is a schematic block diagram of an apparatus 1200 suitable for implementing some embodiments of the present disclosure. The apparatus 1200 may be regarded as another exemplary embodiment of the network devices 110, 120, 430, and 440 shown in FIGS. 1 and 4, or the terminal devices 410 and 420 shown in FIG. 4. Accordingly, the apparatus 1200 may be implemented in or as at least a part of the above network devices or terminal devices.

[0181] As shown, the apparatus 1200 includes a processor 1210, a memory 1220 coupled to the processor 1210, a suitable transmitter (TX) and receiver (RX) 1240 coupled to the processor 1210, and a communication interface coupled to the TX / RX 1240. The memory 1220 stores at least a part of the program 1230. The TX / RX 1240 is used for two-way communication. The TX / RX 1240 has at least one antenna to facilitate communication, although the access nodes referred to herein may actually have multiple antennas. The communication interface may represent any interface necessary for communication with other network elements, such as an X2 interface for two-way communication between gNBs or eNBs, an S1 interface for communication between a Mobility Management Entity (MME) / Serving Gateway (S-GW) and a gNB or eNB, a Un interface for communication between a gNB or eNB and a relay node (RN), or a Uu interface for communication between a gNB or eNB and a terminal device.

[0182] Assume that when program 1230 is executed by an associated processor 1210 as described herein with reference to FIGS. 2-11, it includes program instructions that enable apparatus 1200 to operate in accordance with embodiments of the present disclosure. Embodiments herein may be implemented by computer software executable by processor 1210 of apparatus 1200, or by hardware, or by a combination of software and hardware. Processor 1210 may be configured to implement various embodiments of the present disclosure. Further, the combination of processor 1210 and memory 1220 may form processing means 1250 suitable for implementing various embodiments of the present disclosure.

[0183] Memory 1220 may be of any type suitable for a local technical network, and by way of non-limiting example, may be implemented using any suitable data storage technology such as a non-transitory computer-readable storage medium, a semiconductor-based memory device, a magnetic memory device and system, an optical memory device and system, a fixed memory, and a removable memory. Although only one memory 1220 is shown within apparatus 1200, there may be several physically different memory modules within apparatus 1200. Processor 1210 may be of any type suitable for a local technical network and may include, by way of non-limiting example, one or more of a general-purpose computer, a dedicated computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Apparatus 1200 may have an application-specific integrated circuit chip that is temporally dependent on a clock that synchronizes multiple processors, such as a main processor.

[0184] In some embodiments, the terminal device comprises a circuit, and the circuit is configured to execute methods 700, 800, and / or 1100.

[0185] In some embodiments, the network device includes circuitry configured to execute method 900 and / or 1000.

[0186] Components included in the devices and / or apparatuses of the present disclosure may be implemented in various forms including software, hardware, firmware, or any combination thereof. In one embodiment, one or more units may be implemented using software and / or firmware such as machine-executable instructions stored on a storage medium. In addition to or instead of the machine-executable instructions, some or all of the units in the devices and / or apparatuses may be implemented at least in part by one or more hardware logic components. By way of example and not limitation, exemplary types of hardware logic components that may be used include field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), system-on-a-chip systems (SOCs), complex programmable logic devices (CPLDs), and the like.

[0187] As a whole, various embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, and other aspects may be implemented in firmware or software that can be executed by a controller, a microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are illustrated and described using block diagrams, flowcharts, or some other pictorial representation, it should be understood that the blocks, devices, systems, technical terminal devices, or methods described herein may be implemented, as non-limiting examples, in hardware, software, firmware, dedicated circuits or logic, general-purpose hardware or controllers or other computing devices, or any combination thereof.

[0188] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions included in program modules, that are executed within a device on a target physical processor or virtual processor to perform the processes or methods described above with reference to any one of FIGS. 3 to 11. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. In various embodiments, the functions of the program modules may be combined or divided among the program modules as needed. The machine-executable instructions of the program modules may be executed within a local or distributed device. In a distributed device, the program modules may be arranged in both local and remote storage media.

[0189] The program code for executing the method of the present disclosure may be described in any combination of one or more programming languages. These program codes are provided to a processor or a controller of a general-purpose computer, a dedicated computer, or other programmable data processing devices, and when executed by the processor or the controller, the program codes implement the functions / operations specified in the flowchart and / or block diagram. The program code may be executed entirely on the machine, partially on the machine, as an independent software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0190] The above program code may be implemented on a machine-readable medium, and the machine-readable medium may be any tangible medium that can be used by or associated with an instruction execution system, apparatus, or device and that can contain or store a program for them. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing media. More specific examples of the machine-readable storage medium may include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0191] Although the operations have been described in a specific order for illustration, it should be understood that such operations are not necessarily required to be performed in the specific order shown or sequentially, nor are all the operations described required to be executed. In some cases, multitasking and parallel processing may be advantageous. Similarly, although details of some specific embodiments are included in the above discussion, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to the particular embodiments. Some of the features described in the context of individual embodiments may be combined and implemented in a single embodiment. Conversely, the various features described in the context of a single embodiment may be implemented separately in multiple embodiments or in any suitable sub-combination.

[0192] Although the present disclosure has been described in language specific to structural features and / or methodological operations, it should be understood that the present disclosure as defined in the appended claims is not necessarily limited to the specific features or operations described above. Rather, the specific features and operations described above are disclosed as exemplary forms for carrying out the claims.

[0193] In summary, embodiments of the present disclosure can provide the following solutions.

[0194] A communication method includes, in a first network device, receiving a cross-link interference (CLI) measurement setting from a second network device, the CLI measurement setting indicating at least one of a set of communication resources for downlink transmission of the second network device or a set of CLI reference signals (RS) transmitted by the second network device using a transmission beam sweep, and performing a measurement on the at least one of the set of communication resources or the set of CLI RS using a receive beam sweep.

[0195] In one embodiment, receiving the CLI measurement configuration includes at least one of receiving the CLI measurement configuration via an Access and Mobility Management Function (AMF) or Operation Administration and Maintenance (OAM).

[0196] In one embodiment, the CLI RS among the set of CLI RSs includes at least one of Channel State Information (CSI) RS specific to a serving cell associated with the second network device and a Synchronization Signal Block (SSB).

[0197] In one embodiment, performing the measurement includes measuring at least one of the Reference Signal Receiving Power (RSRP) and the Signal to Interference plus Noise Ratio (SINR) of each RS among the set of CLI RSs.

[0198] In one embodiment, the CLI measurement configuration indicating the set of communication resources indicates at least one of a set of Orthogonal Frequency Division Multiplexing (OFDM) symbols, a set of Physical Resource Blocks (PRBs) for each frequency subband, and a set of Transmission Configuration Indication (TCI) states, where each TCI state corresponds to a transmission beam of the second network device for each frequency subband and is indicated by a CLI RS resource ID.

[0199] In one embodiment, performing the measurement includes measuring at least one of a received signal strength indicator (RSSI) and SINR of each communication resource in the set of communication resources.

[0200] In one embodiment, performing the measurement includes performing the measurement across a plurality of discontinuous sub-bands of the second network device.

[0201] In one embodiment, the method further includes transmitting a CLI measurement report generated based on the measurement to the second device, the CLI measurement report including a first number of CLI RS resource IDs, wherein a CLI RS resource ID among the first number of CLI RS resource IDs corresponds to a CLI RS resource having one of the first number of measurement values of the measurement performed on the set of CLI RS, each of the first number of measurement values being greater than a first threshold, the measurement value including at least one of RSRP, RSSI, and SINR, and the first number being an integer greater than or equal to 1.

[0202] In one embodiment, the CLI measurement report further includes the first number of measurement values respectively corresponding to the CLI RS resource IDs among the first number of CLI RS resource IDs.

[0203] In one embodiment, the method further includes transmitting a CLI measurement report generated based on the measurement to the second device, the CLI measurement report including a second number of CLI RS resource IDs, wherein a CLI RS resource ID among the second number of CLI RS resource IDs corresponds to a CLI RS resource having one of the second number of measurement values of the measurement performed on the set of CLI RS, each of the second number of measurement values being less than a second threshold, and the second number being an integer greater than or equal to 1.

[0204] In one embodiment, the CLI measurement report further includes the second number of measurement values respectively corresponding to the CLI RS resource IDs among the second number of CLI RS resource IDs.

[0205] In one embodiment, the method further includes transmitting a CLI measurement report generated based on measurements to the second device, where the CLI measurement report includes a CLI RS resource ID specific to a frequency subband, and the CLI RS resource ID corresponds to a CLI RS having the maximum measurement value in the frequency subband.

[0206] In one embodiment, in the above method, transmitting the CLI measurement report includes at least one of: transmitting the CLI measurement report periodically; transmitting the CLI measurement report based on a timing setting received from at least one of OAM and AMF, the timing setting indicating at least one of a period, a slot index, and a time offset; and transmitting the CLI measurement report on a predefined slot.

[0207] In one embodiment, transmitting the CLI measurement report includes transmitting the CLI measurement report in response to a measurement value indicating that the signal quality is greater than a threshold.

[0208] In one embodiment, the method further includes determining, based on the measurement value, a received beam affected by the CLI, and performing uplink reception using the received beam of the first network device other than the received beam affected by the CLI from the second device.

[0209] The communication method is to transmit cross-link interference (CLI) measurement settings to a first device in a second network device, where the CLI measurement settings indicate at least one of a set of communication resources for downlink transmission of the second network device or a set of CLI reference signals (RS), and in a transmission beam sweep, transmit the at least one of the set of communication resources or the set of CLI RS.

[0210] In one embodiment, transmitting the CLI measurement settings includes at least one of transmitting the CLI measurement settings via an access and mobility management function (AMF) or operation administration and maintenance (OAM).

[0211] In one embodiment, the CLI RS of the set of CLI RS includes at least one of channel state information (CSI) RS specific to a serving cell associated with the second network device and a synchronization signal block (SSB).

[0212] In one embodiment, the CLI measurement setting indicating the set of communication resources includes at least one of: a set of orthogonal frequency division multiplexing (OFDM) symbols; a set of physical resource blocks (PRBs) for each frequency sub-band; and a set of transmission configuration indication (TCI) states, each corresponding to a transmission beam of the second network device for each frequency sub-band, and each TCI state being indicated by a CLI RS resource ID.

[0213] In one embodiment, transmitting at least one of the set of communication resources and the set of CLI RS includes transmitting at least one of the set of communication resources and the set of CLI RS across a plurality of discontinuous frequency sub-bands of a second device.

[0214] In one embodiment, the method further includes receiving, from a first network device, a CLI measurement report generated based on measurements, the CLI measurement report including a first number of CLI RS resource IDs, the CLI RS resource ID among the first number of CLI RS resource IDs corresponding to a CLI RS resource having one of the first number of measurement values of measurements performed on the set of CLI RS, each of the first number of measurement values being greater than a first threshold, the measurement values including at least one of RSRP, RSSI, and SINR, and the first number being an integer greater than or equal to 1.

[0215] In one embodiment, the CLI measurement report further includes the first number of measurement values respectively corresponding to the CLI RS resource IDs among the first number of CLI RS resource IDs.

[0216] In one embodiment, the method further includes receiving, from a first device, a CLI measurement report generated based on measurement, the CLI measurement report including a second number of CLI RS resource IDs, the CLI RS resource IDs among the second number of CLI RS resource IDs corresponding to CLI RS resources having one of the second number of measurement values of measurements performed on the set of CLI RS, each of the second number of measurement values being less than a second threshold, and the second number being an integer greater than or equal to 1.

[0217] In one embodiment, the CLI measurement report further includes the second number of measurement values respectively corresponding to the CLI RS resource IDs among the second number of CLI RS resource IDs.

[0218] In one embodiment, the method further includes receiving, from a first device, a CLI measurement report generated based on measurement, the CLI measurement report may include a CLI RS resource ID specific to a frequency subband, and the CLI RS resource ID corresponds to a CLI RS having a maximum measurement value in the frequency subband.

[0219] In one embodiment, receiving the CLI measurement report includes at least one of periodically receiving the CLI measurement report, receiving the CLI measurement report based on a timing setting received from at least one of OAM and AMF, the timing setting indicating at least one of a period, a slot index, and a time offset, and receiving the CLI measurement report on a predefined slot.

[0220] In one embodiment, the method further includes performing downlink transmission using a transmission beam determined based on the CLI measurement report, the transmission beam corresponding to at least one of a first CLI RS ID other than the first number of CLI RS IDs and a second CLI RS ID among the second number of CLI RS IDs.

[0221] In one embodiment, the method further includes transmitting a downlink configuration indicating a determined transmission beam to a terminal device served by a second network device.

[0222] A communication method includes, at a first terminal device, receiving a cross-link interference (CLI) measurement configuration from a first network device, where the CLI measurement configuration indicates at least one of a set of communication resources for uplink transmission of a second terminal device, or a set of CLI reference signals (RS) transmitted by the second terminal device using a transmission beam sweep; and performing a measurement on the at least one of the set of communication resources or the set of CLI RS using a reception beam sweep.

[0223] In one embodiment, the CLI RS of the set of CLI RS includes a sounding reference signal (SRS).

[0224] In one embodiment, in the above method, performing the measurement includes measuring at least one of a reference signal receiving power (RSRP) and a signal to interference plus noise ratio (SINR) of each RS of the set of CLI RS.

[0225] In one embodiment, the CLI measurement setting indicating the set of communication resources includes at least one of: a set of orthogonal frequency division multiplexing (OFDM) symbols; a set of physical resource blocks (PRBs) for each frequency sub-band; and a set of transmission configuration indication (TCI) states, each corresponding to a respective receive beam of the first terminal device and each TCI state being indicated by a CLI RS resource ID.

[0226] In one embodiment, performing the measurement includes measuring at least one of a received signal strength indicator (RSSI) and a signal-to-interference-plus-noise ratio (SINR) for each communication resource in the set of communication resources.

[0227] In one embodiment, the method further includes transmitting a CLI measurement report generated based on the measurement to the first network device, the CLI measurement report including a first number of TCI state IDs, wherein a TCI state ID among the first number of TCI state IDs corresponds to a CLI RS resource having one of the first number of measurement values of the measurement performed on the set of CLI RSs, each of the first number of measurement values being greater than a first threshold, the measurement values including at least one of a reference signal received power (RSRP), an RSSI, and an SINR, and the first number being an integer greater than or equal to 1.

[0228] In one embodiment, in the method, the CLI measurement report further includes the first number of measurement values respectively corresponding to the TCI state IDs among the first number of TCI state IDs.

[0229] In one embodiment, the method further includes transmitting a CLI measurement report generated based on the measurement to the first network device, where the CLI measurement report includes a second number of TCI state IDs, and the TCI state IDs among the second number of TCI state IDs correspond to a CLI RS resource having one of the second number of measurement values of the measurements performed on the set of CLI RSs, each of the second number of measurement values is less than a second threshold, and the second number is an integer greater than or equal to 1.

[0230] In one embodiment, the CLI measurement report further includes the second number of measurement values respectively corresponding to the TCI state IDs among the second number of TCI state IDs.

[0231] In one embodiment, the method further includes transmitting a CLI measurement report generated based on the measurement to the first network device, where the CLI measurement report includes at least one TCI state ID, and the TCI state ID among the at least one TCI state ID is associated with a reception beam of a first terminal device.

[0232] In one embodiment, in the method, the measurement report further includes a timing setting for transmitting the CLI measurement report.

[0233] In one embodiment, the method further includes receiving, from the first network device, a downlink setting indicating a reception beam for downlink reception in response to the transmitted CLI measurement report, where the reception beam corresponds to at least one of a first TCI state ID other than the first number of TCI state IDs, a second TCI state ID among the second number of TCI state IDs, and a TCI state ID.

[0234] In one embodiment, the method further includes performing downlink reception using the indicated reception beam.

[0235] In one embodiment, the CLI measurement report is transmitted periodically, the CLI measurement report is transmitted on a Physical Uplink Control Channel (PUCCH), and the PUCCH is transmitted on the same transmission beam as the transmission beam for at least one of the last Physical Uplink Shared Channel (PUSCH) and the last Physical Random Access Channel (PRACH).

[0236] In one embodiment, in the above method, the CLI measurement report is transmitted in response to receiving downlink control information requesting the CLI measurement report.

[0237] In one embodiment, in the above method, the CLI measurement report is a communication resource set by the first network device, and is transmitted in a communication resource set based on a communication resource for SSB transmission.

[0238] A communication method includes, at a second terminal device, receiving a Cross Link Interference (CLI) measurement setting from a second network device, where the CLI measurement setting indicates at least one of a set of communication resources for uplink transmission of the second terminal device or a set of CLI Reference Signals (RSs), and transmitting, using a transmission beam sweep, at least one of the set of communication resources or the set of CLI RSs.

[0239] In one embodiment, the CLI RS among the set of CLI RSs includes a Sounding Reference Signal (SRS).

[0240] In one embodiment, the CLI measurement setting indicating the set of communication resources includes at least one of: a set of orthogonal frequency division multiplexing (OFDM) symbols; a set of physical resource blocks (PRBs) of each frequency sub-band of the second terminal device; and a set of transmission configuration indication (TCI) states where each TCI state corresponds to a respective receiving beam of the first terminal device and each transmission configuration indication (TCI) state is indicated by a CLI RS resource ID.

[0241] A method of communication includes, at a first network device, transmitting a cross link interference (CLI) measurement setting to a first terminal device, the CLI measurement setting indicating at least one of: a set of communication resources for uplink transmission of a second terminal device; or a set of CLI reference signals (RSs) transmitted by the second terminal device using a transmission beam sweep, and receiving a CLI measurement report from the terminal device.

[0242] In one embodiment, the CLI measurement report includes a first number of TCI state IDs, where a TCI state ID among the first number of TCI state IDs corresponds to a CLI RS resource having one of the first number of measurement values of measurements performed by the first terminal device on the set of CLI RSs, each of the first number of measurement values is greater than a first threshold, the measurement value includes at least one of RSRP, RSSI, and SINR, and the first number is an integer greater than or equal to 1.

[0243] In one embodiment, the CLI measurement report further includes the first number of measurement values respectively corresponding to the TCI state IDs among the first number of TCI state IDs.

[0244] In one embodiment, the CLI measurement report includes a second number of TCI state IDs, and among the second number of TCI state IDs, the TCI state ID corresponds to a CLI RS resource having one of the second number of measurement values of the measurements performed by the first terminal device for the set of CLI RSs. Each of the second number of measurement values is less than a second threshold, and the second number is an integer greater than or equal to 1.

[0245] In one embodiment, the CLI measurement report further includes the second number of measurement values respectively corresponding to the TCI state IDs among the second number of TCI state IDs.

[0246] In one embodiment, in the above method, the CLI measurement report includes at least one TCI state ID, and among the at least one TCI state ID, the TCI state ID is associated with the reception beam of the first terminal device.

[0247] In one embodiment, the CLI measurement report includes a timing setting for transmitting the CLI measurement report.

[0248] In one embodiment, the above method further includes transmitting, to the first terminal device, a downlink setting indicating the reception beam of the first terminal device in response to the received CLI measurement report. The indicated reception beam corresponds to at least one of a first TCI state ID other than the first number of TCI state IDs, a second TCI state ID among the second number of TCI state IDs, and a TCI state ID.

[0249] In one embodiment, the CLI measurement setting is determined based on uplink information received from a second network device, and the uplink information indicates at least an uplink resource for a second terminal device.

[0250] In one embodiment, the CLI measurement setting is set by at least one of AMF and OAM.

[0251] The network device includes a processor and a memory coupled to the processor and storing instructions, and when the instructions are executed by the processor, executes a method according to the communication method described above.

[0252] The terminal device includes a processor and a memory coupled to the processor and storing instructions, and when the instructions are executed by the processor, executes a method according to the communication method described above.

[0253] The computer-readable medium stores instructions that, when executed on at least one processor, cause the at least one processor to execute a method according to the communication method described above.

Claims

1. A method of communication, comprising: in a first network device, receiving a cross-link interference (CLI) measurement setting from a second network device, the CLI measurement setting indicating at least one of a set of communication resources for downlink transmission of the second network device, or a set of CLI reference signals (RS) transmitted by the second network device using a transmission beam sweep; performing a measurement on at least one of the set of communication resources or the set of CLI RS using a reception beam sweep; A method comprising the steps of:

2. The CLI RS among the set of CLI RS is: at least one of channel state information (CSI) RS specific to a serving cell associated with the second network device, and a synchronization signal block (SSB). The method according to claim 1.

3. The CLI measurement setting indicating the set of communication resources is: a set of orthogonal frequency division multiplexing (OFDM) symbols, a set of physical resource blocks (PRB) for each frequency subband, and each transmission configuration indication (TCI) state corresponding to a transmission beam of the second network device for the frequency subband, each TCI state being a set of TCI states indicated by a CLI RS resource ID. The method according to claim 1.

4. Performing the measurement includes: measuring at least one of the reference signal receiving power (RSRP) and the signal to interference plus noise ratio (SINR) of each RS among the set of CLI RS, or measuring at least one of a received signal strength indicator (RSSI) and a SINR for each RS in the set of communication resources The method according to claim 2 or 3

5. Executing the measurement executing the measurement across a plurality of discontinuous sub-bands of the second network device The method according to claim 1

6. further comprising transmitting a CLI measurement report generated based on the measurement to the second device, the CLI measurement report including a first number of CLI RS resource IDs, wherein the CLI RS resource ID among the first number of CLI RS resource IDs corresponds to a CLI RS resource having one of the first number of measurement values of the measurement performed on the set of CLI RSs, each of the first number of measurement values is greater than a first threshold, the measurement values include at least one of RSRP, RSSI, and SINR, and the first number is an integer of 1 or more The method according to claim 1

7. The CLI measurement report further includes the first number of measurement values respectively corresponding to the CLI RS resource IDs among the first number of CLI RS resource IDs The method according to claim 6

8. further comprising transmitting a CLI measurement report generated based on the measurement to the second device, the CLI measurement report including a CLI RS resource ID specific to a frequency sub-band, the CLI RS resource ID corresponding to a CLI RS having a maximum measurement value in the frequency sub-band The method according to claim 1

9. A communication method comprising in a first terminal device, receiving a cross-link interference (CLI) measurement setting from a first network device, the CLI measurement setting indicating at least one of a set of communication resources for uplink transmission of a second terminal device or a set of CLI reference signals (RSs) transmitted by the second terminal device using a transmit beam sweep performing a measurement on at least one of the set of communication resources or the set of CLI RSs using a receive beam sweep A method comprising

10. Among the set of CLIs, the CLI includes a sounding reference signal (SRS). The method according to claim 9.

11. Executing the measurement includes measuring at least one of the reference signal receiving power (RSRP) and the signal-to-interference-plus-noise ratio (SINR) of each RS among the set of CLIs, or measuring at least one of the received signal strength indicator (RSSI) and the SINR of each RS in the set of communication resources. The method according to claim 9.

12. The CLI measurement setting indicating the set of communication resources is a set of orthogonal frequency division multiplexing (OFDM) symbols, a set of physical resource blocks (PRBs) for each frequency subband, and at least one of a set of transmission configuration indication (TCI) states, where each TCI state corresponds to a respective receiving beam of the first terminal device and each TCI state is indicated by a CLI RS resource ID. The method according to claim 9.

13. Further including transmitting a CLI measurement report generated based on the measurement to the first network device, where the CLI measurement report includes a first number of TCI state IDs, where the TCI state ID among the first number of TCI state IDs corresponds to a CLI RS resource having one of the first number of measurement values of the measurement performed on the set of CLIs, each of the first number of measurement values is greater than a first threshold, the measurement values include at least one of RSRP, RSSI, and SINR, and the first number is an integer greater than or equal to 1. The method according to claim 9.

14. The CLI measurement report further includes the first number of measurement values corresponding respectively to the TCI state IDs among the first number of TCI state IDs. The method according to claim 13.

15. Further including transmitting the CLI measurement report generated based on the measurement to the first network device, where the CLI measurement report includes a second number of TCI state IDs, and the TCI state ID among the second number of TCI state IDs corresponds to a CLI RS resource having one of the second number of measurement values of the measurements performed on the set of CLI RSs, each of the second number of measurement values being less than a second threshold, and the second number being an integer greater than or equal to 1 The method according to claim 9.

16. The CLI measurement report further includes the second number of measurement values respectively corresponding to the TCI state IDs among the second number of TCI state IDs The method according to claim 15.

17. Further including transmitting the CLI measurement report generated based on the measurement to the first network device, where the CLI measurement report includes at least one TCI state ID, and the TCI state ID among the at least one TCI state ID is associated with the receiving beam of the first terminal device The method according to claim 9.

18. Further including receiving, from the first network device, a downlink setting indicating a receiving beam for downlink reception in response to the transmitted CLI measurement report, where the receiving beam corresponds to at least one of a first TCI state ID other than the first number of TCI state IDs and a second TCI state ID among the second number of TCI state IDs The method according to any one of claims 13 to 17.

19. The CLI measurement report is transmitted periodically, the CLI measurement report is transmitted on a Physical Uplink Control Channel (PUCCH), and the PUCCH is transmitted on the same transmission beam as the transmission beam for at least one of the last Physical Uplink Shared Channel (PUSCH) and the last Physical Random Access Channel (PRACH) The method according to claim 9.

20. The CLI measurement report is transmitted in response to receiving downlink control information requesting the CLI measurement report The method according to any one of claims 13 to 19.

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