Device and method for interference measurement in wireless communication system

Abstract

The objective of the present disclosure is to measure interference, and a method therefor comprises the steps of: performing a first measurement for interference; reporting the result of the first measurement; receiving configuration information related to a reference signal for a second measurement and resource allocation information; performing the second measurement for the reference signal received on the basis of the configuration information related to the reference signal and the resource allocation information; and reporting the second measurement, wherein the reference signal includes at least one of one reference signal symbol, a part excluding a CP from the reference signal symbol, and at least a part of the part including a foremost part thereof.

Description

Device and method for measuring interference in a wireless communication system

[0001] The present disclosure relates to a wireless communication system, and more specifically to an apparatus and method for measuring interference in a wireless communication system.

[0002] Wireless access systems are being widely deployed to provide various types of communication services, such as voice and data. Generally, a wireless access system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.). Examples of multiple access systems include CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access) systems.

[0003] In particular, as many communication devices require large communication capacities, enhanced mobile broadband (eMBB) communication technology is being proposed as an improvement over existing radio access technology (RAT). Furthermore, communication systems are being proposed that consider not only massive machine type communications (mmTC), which connects multiple devices and objects to provide various services anytime and anywhere, but also services and user equipment (UE) that are sensitive to reliability and latency. Various technical configurations are being proposed for this purpose.

[0004] The present disclosure relates to an apparatus and method for measuring interference in a wireless communication system.

[0005] The present disclosure relates to an apparatus and method for measuring interference between terminals in a wireless communication system.

[0006] The present disclosure relates to an apparatus and method for measuring cross-link interference (CLI) in a wireless communication system.

[0007] The present disclosure relates to an apparatus and method for measuring CLI without the influence of inter-symbol interference (ISI) in a wireless communication system.

[0008] The present disclosure relates to an apparatus and method for measuring CLI without the influence of inter-carrier interference (ICI) in a wireless communication system.

[0009] The present disclosure relates to an apparatus and method for receiving a distortion-free reference signal in a wireless communication system.

[0010] The present disclosure relates to an apparatus and method for measuring CLI by receiving an intact reference signal despite an increase in cell distance in a wireless communication system.

[0011] The present disclosure relates to an apparatus and method for measuring CLI with high accuracy in a wireless communication system.

[0012] The present disclosure relates to an apparatus and method for a reference signal capable of reducing the influence of cell distance on a reference signal in a wireless communication system.

[0013] The present disclosure relates to an apparatus and method for allocating measurement resources based on TA (timing advanced) in a wireless communication system.

[0014] The present disclosure relates to an apparatus and method for allocating measurement resources based on cell coverage distance in a wireless communication system.

[0015] The technical objectives to be achieved in this disclosure are not limited to those mentioned above, and other unmentioned technical problems may be considered by those skilled in the art to which the technical configuration of this disclosure applies, based on the embodiments of this disclosure described below.

[0016] As an example of the present disclosure, the method comprises the steps of: performing a first measurement for interference; reporting the result of the first measurement; receiving setting information and resource allocation information related to a reference signal for a second measurement; performing the second measurement on the received reference signal based on the setting information related to the reference signal and the resource allocation information; and reporting the result of the second measurement, wherein the reference signal comprises at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

[0017] As an example of the present disclosure, a method comprises the steps of receiving a result report of a first measurement, receiving setting information for a reference signal for a second measurement and information for resource allocation based on a request, allocating resources for the second measurement, transmitting the setting information for the reference signal and resource allocation information, and receiving a result report of the second measurement based on the setting information related to the reference signal and the resource allocation information, wherein the reference signal comprises at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

[0018] As an example of the present disclosure, the device comprises a transceiver and a processor coupled to the transceiver, wherein the processor is configured to perform a first measurement for interference and report the result of the first measurement, receive setting information and resource allocation information related to a reference signal for a second measurement, perform the second measurement on the received reference signal based on the setting information and resource allocation information related to the reference signal, and report the result of the second measurement, wherein the reference signal comprises at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

[0019] As an example of the present disclosure, the device comprises a transceiver and a processor coupled to the transceiver, wherein the processor is configured to receive a result report of a first measurement, receive information for setting a reference signal for a second measurement and information for resource allocation based on a request, allocate resources for the second measurement, transmit information for setting the reference signal and resource allocation, and receive a result report of the second measurement based on information for setting the reference signal and resource allocation. The reference signal comprises at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

[0020] As an example of the present disclosure, a terminal comprises at least one processor and at least one memory connected to the at least one processor and storing instructions that cause the terminal to perform operations as executed by the at least one processor, wherein the operations include: performing a first measurement for interference; reporting the result of the first measurement; receiving configuration information and resource allocation information related to a reference signal for a second measurement; performing the second measurement on the received reference signal based on the configuration information and resource allocation information related to the reference signal; and reporting the result of the second measurement, wherein the reference signal comprises at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

[0021] As an example of the present disclosure, a non-transitory computer-readable medium storing at least one program instruction comprises, wherein the at least one program instruction causes a terminal to perform operations as it is executed by at least one processor, the operations comprising: performing a first measurement for interference; reporting the result of the first measurement; receiving configuration information and resource allocation information related to a reference signal for a second measurement; performing the second measurement on the received reference signal based on the configuration information and resource allocation information related to the reference signal; and reporting the result of the second measurement, wherein the reference signal comprises at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

[0022] The embodiments of the present disclosure described above are merely some of the preferred embodiments of the present disclosure, and various embodiments reflecting the technical features of the present disclosure can be derived and understood by those skilled in the art based on the detailed description of the present disclosure set forth below.

[0023] The following effects may be achieved by embodiments based on the present disclosure.

[0024] According to the present disclosure, the error in cross-link interference (CLI) measurement according to distance can be reduced.

[0025] The effects obtainable from the embodiments of the present disclosure are not limited to those mentioned above, and other unmentioned effects can be clearly derived and understood by a person skilled in the art to which the technical configuration of the present disclosure applies from the description of the embodiments of the present disclosure below. That is, unintended effects resulting from implementing the configuration described in the present disclosure can also be derived by a person skilled in the art from the embodiments of the present disclosure.

[0026] The drawings attached below are intended to aid in understanding the present disclosure and may provide embodiments of the present disclosure together with the detailed description. However, the technical features of the present disclosure are not limited to specific drawings, and features disclosed in each drawing may be combined with one another to form new embodiments. Reference numerals in each drawing may denote structural elements.

[0027] FIG. 1 illustrates an example of a communication system applicable to the present disclosure.

[0028] FIG. 2 illustrates an example of a wireless device applicable to the present disclosure.

[0029] FIG. 3 illustrates a method for processing a transmission signal applicable to the present disclosure.

[0030] FIG. 4 illustrates a communication procedure between a terminal and a base station applicable to the present disclosure.

[0031] FIG. 5 illustrates an example of a communication structure that can be provided in a 6G (6th generation) system applicable to the present disclosure.

[0032] FIG. 6 illustrates an electromagnetic spectrum applicable to the present disclosure.

[0033] FIG. 7 illustrates a THz communication method applicable to the present disclosure.

[0034] FIG. 8 illustrates a THz signal generation method applicable to the present disclosure.

[0035] FIG. 9 illustrates a wireless communication transceiver applicable to the present disclosure.

[0036] FIG. 10 illustrates a transmitter structure applicable to the present disclosure.

[0037] FIG. 11 illustrates a system information transmission procedure applicable to the present disclosure.

[0038] FIG. 12 illustrates a beam management procedure applicable to the present disclosure.

[0039] FIG. 13a illustrates a wireless communication system that supports different links in adjacent cells.

[0040] FIG. 13b illustrates the uplink symbol and downlink symbol received by the victim terminal.

[0041] FIG. 14 illustrates an example of IM (interference measurement) resource allocation according to one embodiment of the present disclosure.

[0042] FIG. 15 illustrates an example of an additional IM resource allocation procedure according to one embodiment of the present disclosure.

[0043] FIG. 16 illustrates an example of a cross-link interference (CLI) measurement process between terminals using additional IM resources.

[0044] Figure 17a illustrates sounding reference signal (SRS) symbols including cyclic prefix (CP).

[0045] FIG. 17b illustrates an example of extended SRS symbols according to one embodiment of the present disclosure.

[0046] FIG. 18a illustrates the existing SRS symbols received by the victim terminal.

[0047] FIG. 18b illustrates a sequence of SRS symbols received by the victim terminal.

[0048] FIG. 19 illustrates an example of a terminal procedure for CLI measurement and reporting according to one embodiment of the present disclosure.

[0049] FIG. 20 illustrates an example of a procedure for measuring CLI according to one embodiment of the present disclosure.

[0050] FIG. 21 illustrates an example of a base station procedure for CLI measurement and reporting according to one embodiment of the present disclosure.

[0051] FIG. 22 illustrates a resource allocation procedure for CLI measurement according to one embodiment of the present disclosure.

[0052] FIG. 23 illustrates a procedure for providing information for CLI measurement according to one embodiment of the present disclosure.

[0053] FIG. 24 illustrates an example of a wireless device applicable to the present disclosure.

[0054] FIG. 25 illustrates an example of a portable device applicable to the present disclosure.

[0055] FIG. 26 illustrates an example of a vehicle or autonomous vehicle applicable to the present disclosure.

[0056] FIG. 27 illustrates an example of a vehicle applicable to the present disclosure.

[0057] FIG. 28 illustrates an example of an XR device applicable to the present disclosure.

[0058] FIG. 29 illustrates an example of a robot applicable to the present disclosure.

[0059] FIG. 30 illustrates an example of an AI device applicable to the present disclosure.

[0060] The following embodiments are combinations of the components and features of the present disclosure in a predetermined form. Each component or feature may be considered optional unless otherwise explicitly stated. Each component or feature may be implemented in a form not combined with other components or features. Additionally, some components and / or features may be combined to form embodiments of the present disclosure. The order of operations described in the embodiments of the present disclosure may be changed. Some components or features of any embodiment may be included in other embodiments, or may be replaced with corresponding components or features of other embodiments.

[0061] In the description of the drawings, procedures or steps that could obscure the gist of the present disclosure have not been described, nor have procedures or steps that are understandable to those skilled in the art been described.

[0062] Throughout the specification, when a part is described as "comprising" or "including" a component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Furthermore, terms such as "...part," "...unit," and "module" as used in the specification refer to a unit that performs at least one function or operation, and this may be implemented in hardware, software, or a combination of hardware and software. Additionally, "one (a or an)," "one," "the," and similar related terms may be used in the context describing the present disclosure (particularly in the context of the following claims) in both singular and plural forms, unless otherwise indicated in the specification or clearly contradicted by the context.

[0063] In this specification, the embodiments of the present disclosure are described with a focus on the data transmission and reception relationship between a base station and a mobile station. Here, the base station refers to a terminal node of a network that communicates directly with a mobile station. Specific operations described in this document as being performed by a base station may, in some cases, be performed by an upper node of the base station.

[0064] That is, in a network consisting of multiple network nodes including a base station, various operations performed for communication with a mobile station may be performed by the base station or other network nodes other than the base station. In this case, 'base station' may be replaced by terms such as fixed station, Node B, eNB (eNode B), gNB (gNode B), ng-eNB, advanced base station (ABS), or access point.

[0065] Additionally, in embodiments of the present disclosure, the term terminal may be replaced with terms such as user equipment (UE), mobile station (MS), subscriber station (SS), mobile subscriber station (MSS), mobile terminal, or advanced mobile station (AMS).

[0066] Furthermore, the transmitting end refers to a fixed and / or mobile node that provides data or voice services, and the receiving end refers to a fixed and / or mobile node that receives data or voice services. Therefore, in the case of the uplink, a mobile station can be the transmitting end and a base station can be the receiving end. Similarly, in the case of the downlink, a mobile station can be the receiving end and a base station can be the transmitting end.

[0067] Embodiments of the present disclosure may be supported by standard documents disclosed in at least one of the wireless access systems, such as IEEE 802.xx systems, 3GPP (3rd Generation Partnership Project) systems, 3GPP LTE (Long Term Evolution) systems, 3GPP 5G (5th generation) NR (New Radio) systems and 3GPP2 systems, and in particular, embodiments of the present disclosure may be supported by 3GPP TS (technical specification) 38.211, 3GPP TS 38.212, 3GPP TS 38.213, 3GPP TS 38.321 and 3GPP TS 38.331 documents.

[0068] In addition, the embodiments of the present disclosure may be applied to other wireless access systems and are not limited to the systems described above. For example, they may be applicable to systems applied after the 3GPP 5G NR system and are not limited to specific systems.

[0069] That is, obvious steps or parts not described in the embodiments of the present disclosure may be described by referring to the aforementioned documents. Additionally, all terms disclosed in this document may be explained by the aforementioned standard documents.

[0070] Hereinafter, preferred embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. The detailed description disclosed below, together with the accompanying drawings, is intended to describe exemplary embodiments of the present disclosure and is not intended to represent the only embodiment in which the technical configuration of the present disclosure can be implemented.

[0071] Additionally, specific terms used in the embodiments of the present disclosure are provided to aid in understanding the present disclosure, and the use of such specific terms may be modified in other forms without departing from the technical spirit of the present disclosure.

[0072] The following technology can be applied to various wireless access systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access).

[0073] For the sake of clarity, the following description is based on 3GPP communication systems (e.g., LTE, NR, etc.), but the technical scope of this disclosure is not limited thereto. LTE may refer to technology from 3GPP TS 36.xxx Release 8 onwards. Specifically, LTE technology from 3GPP TS 36.xxx Release 10 onwards is referred to as LTE-A, and LTE technology from 3GPP TS 36.xxx Release 13 onwards may be referred to as LTE-A pro. 3GPP NR may refer to technology from TS 38.xxx Release 15 onwards. 3GPP 6G may refer to technology from TS Release 17 and / or Release 18 onwards. "xxx" indicates a specific standard document number. LTE / NR / 6G may be collectively referred to as 3GPP systems.

[0074] Regarding the background technology, terms, abbreviations, etc. used in this disclosure, reference may be made to standard documents published prior to this disclosure. For example, reference may be made to standard documents 36.xxx and 38.xxx.

[0075] Communication systems applicable to the present disclosure

[0076] Although not limited thereto, the various descriptions, functions, procedures, proposals, methods, and / or flowcharts of the disclosure disclosed in this document may be applied to various fields requiring wireless communication / connection (e.g., 5G) between devices.

[0077] Examples are provided in more detail below with reference to the drawings. In the following drawings and descriptions, the same reference numerals may represent the same or corresponding hardware blocks, software blocks, or function blocks unless otherwise described.

[0078] FIG. 1 illustrates an example of a communication system to which the present disclosure applies.

[0079] Referring to FIG. 1, the communication system (100) to which the present disclosure applies includes a wireless device, a base station, and a network. Here, the wireless device refers to a device that performs communication using wireless access technology (e.g., LTE, LTE-A, LTE-A pro, NR, 5G, 5G-A, 6G) and may be referred to as a communication / wireless / 5G device. Although not limited thereto, the wireless device may include a robot (100a), a vehicle (100b-1, 100b-2), an XR (extended reality) device (100c), a hand-held device (100d), a home appliance (100e), an IoT (Internet of Thing) device (100f), and an AI (artificial intelligence) device / server (100g). For example, the vehicle may include a vehicle equipped with wireless communication capabilities, an autonomous vehicle, a vehicle capable of performing inter-vehicle communication, etc. Here, the vehicle (100b-1, 100b-2) may include an unmanned aerial vehicle (UAV) (e.g., a drone). The XR device (100c) includes an augmented reality (AR) / virtual reality (VR) / mixed reality (MR) device and may be implemented in the form of a head-mounted device (HMD), a head-up display (HUD) equipped in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, digital signage, a vehicle, a robot, etc. The portable device (100d) may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a computer (e.g., a laptop, etc.). The home appliance (100e) may include a TV, a refrigerator, a washing machine, etc. The IoT device (100f) may include a sensor, a smart meter, etc.For example, the base station (120) and network (130) may also be implemented as wireless devices, and a specific wireless device (120a) may act as a base station / network node to other wireless devices.

[0080] Wireless devices (100a to 100f) can be connected to a network (130) through a base station (120). AI technology may be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (100g) through the network (130). The network (130) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, or a 6G network. The wireless devices (100a to 100f) may communicate with each other through the base station (120) / network (130), but may also communicate directly (e.g., sidelink communication) without going through the base station (120) / network (130). For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., V2V (vehicle to vehicle) / V2X (vehicle to everything) communication). Also, an IoT device (100f) (e.g., a sensor) can communicate directly with another IoT device (e.g., a sensor) or other wireless devices (100a to 100f).

[0081] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a to 100f) / base station (120) and between base station (120) / base station (120). Here, wireless communication / connection can be established through various wireless access technologies such as uplink / downlink communication (150a), sidelink communication (150b) (or D2D communication), and communication between base stations (150c) (e.g., relay, IAB (integrated access backhaul)). Through wireless communication / connection (150a, 150b, 150c), wireless devices and base stations / wireless devices, and base stations and base stations can transmit / receive wireless signals to / from each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, based on the various proposals of the present disclosure, at least some of the following may be performed: a process for setting various configuration information for transmitting / receiving wireless signals, a process for various signal processing (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), a resource allocation process, etc.

[0082] Devices applicable to the present disclosure

[0083] FIG. 2 illustrates an example of a wireless device that can be applied to the present disclosure.

[0084] Referring to FIG. 2, the wireless device (200) can transmit and receive wireless signals through various wireless access technologies (e.g., LTE, LTE-A, LTE-A pro, NR, 5G, 5G-A, 6G). The wireless device (200) includes at least one processor (202) and at least one memory (204), and may additionally include at least one transceiver (206) and / or at least one antenna (208).

[0085] The processor (202) controls the memory (204) and / or the transceiver (206) and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or sequences of operation disclosed in this document. For example, the processor (202) may process information within the memory (204) to generate a first information / signal and then transmit a wireless signal containing the first information / signal through the transceiver (206). Additionally, the processor (202) may receive a wireless signal containing a second information / signal through the transceiver (206) and then store information obtained from the signal processing of the second information / signal in the memory (204). The memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, memory (204) may store software code containing instructions for performing some or all of the processes controlled by the processor (202) or for performing the descriptions, functions, procedures, proposals, methods, and / or sequences of operations disclosed in this document. Here, the processor (202) and memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology. A transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals through at least one antenna (208). The transceiver (206) may include a transmitter and / or receiver. The transceiver (206) may be interchangeable with a radio frequency (RF) unit. In this disclosure, a wireless device may mean a communication modem / circuit / chip.

[0086] Hereinafter, hardware elements of the wireless device (200) will be described in more detail. Although not limited thereto, at least one protocol layer may be implemented by at least one processor (202). For example, at least one processor (202) may implement at least one layer (e.g., functional layers such as PHY (physical), MAC (media access control), RLC (radio link control), PDCP (packet data convergence protocol), RRC (radio resource control), and SDAP (service data adaptation protocol). At least one processor (202) may generate at least one PDU (Protocol Data Unit) and / or at least one SDU (service data unit) according to the descriptions, functions, procedures, proposals, methods and / or operation sequences disclosed in this document. At least one processor (202) may generate messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods and / or operation sequences disclosed in this document. At least one processor (202) may generate a signal (e.g., baseband signal) including a PDU, SDU, message, control information, data, or information according to the functions, procedures, proposals, and / or methods disclosed in this document and provide it to at least one transceiver (206). At least one processor (202) may receive a signal (e.g., baseband signal) from at least one transceiver (206) and may obtain a PDU, SDU, message, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document.

[0087] At least one processor (202) may be referred to as a controller, microcontroller, microprocessor, or microcomputer. At least one processor (202) may be implemented by hardware, firmware, software, or a combination thereof. For example, at least one application-specific integrated circuit (ASIC), at least one digital signal processor (DSP), at least one digital signal processing device (DSPD), at least one programmable logic device (PLD), or at least one field programmable gate array (FPGA) may be included in at least one processor (202). The descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. Firmware or software configured to perform the descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be included in at least one processor (202) or stored in at least one memory (204) and driven by at least one processor (202). The descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed in this document may be implemented using firmware or software in the form of code, instructions, and / or sets of instructions.

[0088] At least one memory (204) may be connected to at least one processor (202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. At least one memory (204) may be composed of ROM (read-only memory), RAM (random access memory), EPROM (erasable programmable read-only memory), flash memory, hard drive, registers, cache memory, computer read storage media, and / or combinations thereof. At least one memory (204) may be located inside and / or outside of at least one processor (202). Additionally, at least one memory (204) may be connected to at least one processor (202) via various technologies, such as wired or wireless connections.

[0089] At least one transceiver (206) may transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or operation flowcharts, etc. of this document to at least one other device. At least one transceiver (206) may receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or operation flowcharts, etc. disclosed in this document from at least one other device. For example, at least one transceiver (206) may be connected to at least one processor (202) and may transmit and receive wireless signals. For example, at least one processor (202) may control at least one transceiver (206) to transmit user data, control information, or wireless signals to at least one other device. Additionally, at least one processor (202) may control at least one transceiver (206) to receive user data, control information, or wireless signals from at least one other device. Additionally, at least one transceiver (206) may be connected to at least one antenna (208), and at least one transceiver (206) may be configured to transmit and receive user data, control information, wireless signals / channels, etc., as described in the descriptions, functions, procedures, proposals, methods, and / or operation sequence diagrams disclosed in this document through at least one antenna (208). In this document, at least one antenna may be a plurality of physical antennas or a plurality of logical antennas (e.g., antenna ports). At least one transceiver (206) may convert the received wireless signals / channels, etc., from RF band signals to baseband signals in order to process the received user data, control information, wireless signals / channels, etc., using at least one processor (202). At least one transceiver (206) may convert the processed user data, control information, wireless signals / channels, etc., from baseband signals to RF band signals using at least one processor (202).To this end, at least one transceiver (206) may include an (analog) oscillator and / or filter.

[0090] The components of the wireless device described with reference to FIG. 2 may be referred to by other terms in terms of their function. For example, the processor (202) may be referred to as the control unit, the transceiver (206) as the communication unit, and the memory (204) as the storage unit. In some cases, the communication unit may be used to mean at least a part of the processor (202) and the transceiver (206).

[0091] The structure of the wireless device described with reference to FIG. 2 can be understood as the structure of at least part of various devices. For example, the structure of the wireless device exemplified in FIG. 2 may be at least part of the various devices described with reference to FIG. 1 (e.g., robot (100a), vehicle (100b-1, 100b-2), XR device (100c), portable device (100d), home appliance (100e), IoT device (100f), AI device / server (100g)). Furthermore, according to various embodiments, the device may include other components in addition to the components exemplified in FIG. 2.

[0092] For example, the device may be a portable device such as a smartphone, smartpad, wearable device (e.g., smart watch, smart glasses), or portable computer (e.g., laptop, etc.). In this case, the device may further include at least one of a power supply unit that supplies power and includes a wired / wireless charging circuit, a battery, etc., an interface unit that includes at least one port for connection with another device (e.g., audio input / output port, video input / output port), and an input / output unit for inputting and outputting video information / signals, audio information / signals, data, and / or information input by a user.

[0093] For example, the device may be a mobile device such as a mobile robot, vehicle, train, manned / unmanned aerial vehicle (AV), or ship. In this case, the device may further include at least one of a drive unit comprising at least one of an engine, motor, power train, wheel, brake, and steering device of the device; a power supply unit that supplies power and includes a wired / wireless charging circuit, battery, etc.; a sensor unit that senses state information, environmental information, and user information of the device or its surroundings; an autonomous driving unit that performs functions such as path maintenance, speed control, and destination setting; and a position measurement unit that acquires position information of the moving body through a GPS (global positioning system) and various sensors.

[0094] For example, the device may be an XR device such as an HMD, a HUD (head-up display) equipped in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, digital signage, a vehicle, a robot, etc. In this case, the device may further include at least one of a power supply unit that supplies power and includes a wired / wireless charging circuit, a battery, etc., an input / output unit that acquires control information, data, etc. from the outside and outputs a generated XR object, and a sensor unit that senses state information, environment information, and user information of the device or the surroundings of the device.

[0095] For example, the device may be a robot that can be classified into industrial, medical, household, military, etc., depending on the purpose or field of use. In this case, the device may further include at least one of a sensor unit that senses state information, environmental information, and user information of the device or its surroundings, and a drive unit that performs various physical actions, such as moving robot joints.

[0096] For example, the device may be an AI device such as a TV, projector, smartphone, PC, laptop, digital broadcasting terminal, tablet PC, wearable device, set-top box (STB), radio, washing machine, refrigerator, digital signage, robot, vehicle, etc. In this case, the device may further include at least one of an input unit that acquires various types of data from the outside, an output unit that generates output related to sight, hearing, or touch, a sensor unit that senses state information, environmental information, and user information of the device or its surroundings, and a training unit that learns a model composed of an artificial neural network using training data.

[0097] The structure of the wireless device exemplified in FIG. 2 can be understood as part of a RAN node (e.g., base station, DU, RU, RR, etc.). That is, the device exemplified in FIG. 2 may be a RAN node. In this case, the device may further include a wired transceiver for front haul and / or back haul communication. However, if the front haul and / or back haul communication is based on wireless communication, at least one transceiver (206) exemplified in FIG. 2 is used for front haul and / or back haul communication, and the wired transceiver may not be included.

[0098] FIG. 3 illustrates a method for processing a transmission signal applicable to the present disclosure. For example, the transmission signal may be processed by a signal processing circuit. In this case, the signal processing circuit (300) may include a scrambler (310), a modulator (320), a layer mapper (330), a precoder (340), a resource mapper (350), and a signal generator (360). In this case, for example, the operation / function of FIG. 3 may be performed in the processor (202) and / or transceiver (206) of FIG. 2. Also, for example, the hardware elements of FIG. 3 may be implemented in the processor (202) and / or transceiver (206) of FIG. 2. For example, blocks 310 to 360 may be implemented in the processor (202) of FIG. 2. Additionally, blocks 310 to 350 may be implemented in the processor (202) of FIG. 2, and block 360 may be implemented in the transceiver (206) of FIG. 2, and are not limited to the embodiments described above.

[0099] The codeword can be converted into a wireless signal through the signal processing circuit (300) of FIG. 3. Here, the codeword is an encoded bit sequence of an information block. The information block may include a transmission block (e.g., UL-SCH transmission block, DL-SCH transmission block). Here, the information block may include data related to AI (e.g., training data, AI model data, input data, output data, etc.), and the codeword may be an encoded bit sequence corresponding to the data related to AI. The wireless signal may be transmitted through various physical channels (e.g., PUSCH, PDSCH). Specifically, the codeword can be converted into a scrambled bit sequence by a scrambler (310). The scrambled sequence used for scrambling is generated based on an initialization value, which may include ID information of the wireless device, etc. The scrambled bit sequence can be modulated into a modulation symbol sequence by a modulator (320). Modulation methods may include pi / 2-BPSK (pi / 2-binary phase shift keying), m-PSK (m-phase shift keying), m-QAM (m-quadrature amplitude modulation), etc.

[0100] A complex modulation symbol sequence can be mapped to at least one transmission layer by a layer mapper (330). Here, a transmission layer is a logical resource unit for mapping signals or data transmitted through spatial resources to antenna ports, and one transmission layer can correspond to one stream or one antenna port. Each complex modulation symbol included in the complex modulation symbol sequence is mapped to at least one transmission layer, thereby determining which antenna port it will be transmitted through. The modulation symbols of each transmission layer can be mapped to the corresponding antenna port(s) by a precoder (340). The output z of the precoder (340) can be obtained by multiplying the output y of the layer mapper (330) by an N-XM precoding matrix W, where N is the number of antenna ports and M is the number of transmission layers. Here, the precoder (340) can perform precoding after performing transform precoding (e.g., a discrete Fourier transform (DFT)) on the complex modulation symbols. Additionally, the precoder (340) can perform precoding without performing transform precoding.

[0101] A resource mapper (350) can map the modulation symbols of each antenna port to a time-frequency resource. The time-frequency resource may include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. A signal generator (360) generates a radio signal from the mapped modulation symbols, and the generated radio signal can be transmitted to another device through each antenna. To this end, the signal generator (360) may include an inverse fast Fourier transform (IFFT) module, a cyclic prefix (CP) inserter, a digital-to-analog converter (DAC), a frequency uplink converter, etc.

[0102] The signal processing process for a received signal in a wireless device can be configured as the inverse of the signal processing process (310 to 360) of FIG. 3. For example, a wireless device (e.g., 200 in FIG. 2) can receive a wireless signal from the outside through an antenna port / transceiver. The received wireless signal can be converted into a baseband signal through a signal restorer. To this end, the signal restorer may include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a fast Fourier transform (FFT) module. Subsequently, the baseband signal can be restored into a codeword through a resource de-mapper process, a postcoding process, a demodulation process, and a de-scrambling process. The codeword can be restored into the original information block through decoding. Accordingly, a signal processing circuit (not shown) for a received signal may include a signal restorer, a resource de-mapper, a postcoder, a demodulator, a de-scrambler, and a decoder.

[0103] FIG. 4 illustrates a communication procedure between a terminal and a base station applicable to the present disclosure. FIG. 4 illustrates the operation of a terminal (410) and a base station (420) transmitting and / or receiving data, and the operation performed prior to this.

[0104] Referring to FIG. 4, in step 401, the terminal (410) and the base station (420) perform synchronization. For example, the terminal (410) performs an initial cell search operation. Specifically, the terminal (410) can detect at least one synchronization signal transmitted from the base station (420) according to a predefined rule. Here, the synchronization signal may include a plurality of synchronization signals (e.g., primary synchronization signal, secondary synchronization signal) classified according to structure or use. Through this, the terminal (410) can identify the boundaries of the frame, subframe, slot, and / or symbol of the base station (420) and obtain information about the base station (420) (e.g., cell identifier).

[0105] In step 403, the terminal (410) obtains system information transmitted from the base station (420). The system information is information related to the attributes, characteristics, and / or capabilities of the base station (420) required to connect to the base station (420) and use the service, and can be classified according to content (e.g., whether it is essential for connection), transmission structure (e.g., channel used, whether it is provided on-demand), etc., and can be classified, for example, into a master information block (MIB) and a system information block (SIB). If necessary, the terminal (410) may transmit a signal requesting the system information prior to receiving the system information. The system information may include information related to AI functions. For example, the system information is information required for operations performed based on AI, and may include at least one of information related to an AI model, information related to training, and information related to inference / prediction. However, the request and provision of the system information may be performed after the random access procedure described later.

[0106] In step 405, the terminal (410) and the base station (420) perform a random access procedure. The terminal (410) may transmit and / or receive at least one message for the random access procedure (e.g., random access preamble, RAR (random access response) message, etc.) based on information related to the random access channel of the base station (420) obtained through system information (e.g., channel location, channel structure, structure of supported preamble, etc.). For example, the terminal (410) may transmit a preamble (e.g., MSG1) through the random access channel, receive a RAR message (e.g., MSG2), transmit a message (e.g., MSG3) containing information related to the terminal (410) (e.g., identification information) to the base station (420) using scheduling information included in the RAR message, and receive a message (e.g., MSG4) for contention resolution and / or connection establishment. As another example, MSG1 and MSG3 can be transmitted and received as a single message, or MSG2 and MSG4 can be transmitted and received as a single message.

[0107] In step 407, the terminal (410) and the base station (420) perform signaling of control information. Here, the control information may be defined in various layers, such as a layer that controls the connection (e.g., a radio resource control (RRC) layer), a layer that handles mapping between logical channels and transmission channels (e.g., a media access control (MAC) layer), and a layer that handles physical channels (e.g., a physical (PHY) layer). For example, the terminal (410) and the base station (420) may perform at least one of signaling to establish a connection, signaling to determine settings related to communication, and signaling to indicate allocated resources. Additionally, the signaling of control information may be performed to convey information related to AI functions. For example, information related to AI functions is information necessary for operations performed based on AI, and may include at least one of information related to an AI model, information related to training, and information related to inference / prediction. More specifically, the information related to the AI ​​function signaled in step 407 can be combined and / or combined with the information related to the AI ​​function signaled in step 403, and both can be defined as having a hierarchical, mutually complementary, or substitute structure.

[0108] In step 409, the terminal (410) and the base station (420) transmit and / or receive data. That is, the terminal (410) and the base station (420) can process, transmit and / or receive data based on the signaling of control information. For example, when transmitting data, the terminal (410) or the base station (420) may perform at least one of channel encoding, rate matching, scrambling, constellation mapping, layer mapping, waveform modulation, antenna mapping, and resource mapping on the information bits. Conversely, when receiving data, the terminal (410) or the base station (420) may perform at least one of signal extraction from resources, antenna-specific waveform demodulation, signal placement considering layer mapping, constellation demapping, descrambling, and channel decoding. Here, the transmitted data is AI-related data, and may include, for example, data for AI-based operations or data generated by AI-based operations.

[0109] Steps 401 through 409 described with reference to FIG. 4 must not necessarily be performed in the order exemplified in FIG. 4, and the order of at least some of the steps may vary. Additionally, at least some of steps 401 through 409 may be combined into a single step or omitted. That is, the steps exemplified in FIG. 4 may be performed in various modified forms.

[0110] 6G communication systems and core implementation technologies of 6G systems

[0111] 5G systems define various operating bands within FR1 (frequency range 1), which includes 410 MHz to 7125 MHz, and FR2 (frequency range 2), which includes 24,250 MHz to 71,000 MHz. Various frequencies are being discussed as operating bands for subsequent 6G systems, and the use of frequencies higher than those of 5G systems is also being considered for wider bandwidth and higher transmission speeds. As one example, the use of the THz (Terahertz) frequency band, which includes approximately 100 GHz to 10 THz, is being discussed. The THz frequency band is a band that possesses both the penetrability of radio waves and the directivity of optical waves, and communication using the THz frequency band is expected to play a transitional role from existing radio-based communication to optical-based communication.

[0112] As such, 6G systems utilizing the THz frequency band aim for i) very high data rates per device, ii) a very large number of connected devices, iii) global connectivity, iv) very low latency, v) reduced energy consumption of battery-free IoT devices, vi) ultra-reliable connectivity, and vii) connected intelligence with machine learning capabilities. The vision of 6G systems can be four aspects such as "intelligent connectivity," "deep connectivity," "holographic connectivity," and "ubiquitous connectivity," and 6G systems can be designed to satisfy requirements such as those shown in [Table 1] below.

[0113] Per device peak data rate1 TbpsE2E latency1 msMaximum spectral efficiency100 bps / HzMobility supportup to 1000 km / hrSatellite integrationFullyAIFullyAutonomous vehicleFullyXRFullyHaptic CommunicationFully

[0114] At this time, 6G systems can have key factors such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLC), mMTC (massive machine type communications), AI integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0115] FIG. 5 illustrates an example of a communication structure that can be provided in a 6G system applicable to the present disclosure. Referring to FIG. 5, the 6G system is expected to have 50 times higher simultaneous wireless communication connectivity than the 5G wireless communication system. URLLC, a key feature of 5G, is expected to become an even more dominant technology in 6G communication by providing end-to-end latency of less than 1ms. In this case, the 6G system will have significantly superior volumetric spectral efficiency, unlike the frequently used area-spectral efficiency. The 6G system can provide very long battery life and advanced battery technology for energy harvesting, so mobile devices in the 6G system may not need to be charged separately. New network characteristics in 6G may be as follows.

[0116] - Satellite Integrated Network: 6G is expected to be integrated with satellites to provide a global mobile population. Integrating terrestrial, satellite, and airborne networks into a single wireless communication system is crucial for 6G.

[0117] - Connected Intelligence: Unlike previous generations of wireless communication systems, 6G is innovative and will update wireless evolution from "connected things" to "connected intelligence." AI can be applied at each stage of the communication process (or at each step of the signal processing described below).

[0118] - Seamless integration of wireless information and energy transfer: 6G wireless networks will transfer power to charge the batteries of devices such as smartphones and sensors. Therefore, wireless information and energy transfer (WIET) will be integrated.

[0119] - Ubiquitous Super 3D Connectivity: Connectivity to the network and core network functions of drones and very low Earth orbit satellites will create Super 3D connectivity in 6G ubiquitous.

[0120] Some general requirements regarding the new network characteristics of 6G mentioned above may be as follows.

[0121] - Small cell networks: The idea of ​​small cell networks was introduced to improve the quality of received signals in cellular systems as a result of increased throughput, energy efficiency, and spectrum efficiency. Consequently, small cell networks are an essential feature of communication systems for 5G and beyond 5G (5GB). Therefore, 6G communication systems also adopt the characteristics of small cell networks.

[0122] - Ultra-dense heterogeneous network: Ultra-dense heterogeneous networks will be another important characteristic of 6G communication systems. Multi-tier networks composed of heterogeneous networks improve overall QoS and reduce costs.

[0123] - High-capacity backhaul: Backhaul connections are characterized as high-capacity backhaul networks to support high-volume traffic. High-speed fiber optics and free-space optics (FSO) systems can be possible solutions to this problem.

[0124] - Radar technology integrated with mobile technology: High-precision localization (or location-based services) through communication is one of the functions of 6G wireless communication systems. Therefore, radar systems will be integrated with 6G networks.

[0125] - Softwarization and virtualization: Softwarization and virtualization are two important features that form the basis of the design process in 5GB networks to ensure flexibility, reconfigurability, and programmability. Additionally, billions of devices can be shared across a shared physical infrastructure.

[0126] To satisfy the aforementioned characteristics, technologies such as artificial intelligence (AI), THz (Terahertz) communication, optical wireless technology, FSO backhaul network, massive MIMO technology, blockchain, 3D networking, quantum communication, unmanned aerial vehicles, cell-free communication, wireless information and energy transfer (WIET), integration of sensing and communication, integration of access backhaul networks, holographic beamforming, big data analysis, and large intelligent surface (LIS) may be adopted as core implementation technologies of the 6G system.

[0127] For example, THz communication can be utilized in 6G systems. THz communication is a communication that uses a spectrum in the frequency band between 0.3 THz and 3 THz with a corresponding wavelength in the range of 0.1 mm to 1 mm as shown in Fig. 6. Referring to Fig. 6, the frequency band of the THz wave is located in the intermediate region between the infrared band and the millimeter wave band; accordingly, the THz wave can be understood as a radio wave with the shortest wavelength and, at the same time, a light wave with the longest wavelength. As a result, the THz wave shares some characteristics of infrared and microwave waves, and specifically, can simultaneously possess the penetrability of electromagnetic waves and the directivity of light waves.

[0128] FIG. 7 illustrates a THz communication method applicable to the present disclosure. Referring to FIG. 7, THz wireless communication utilizes THz waves having a frequency of approximately 0.1 to 10 THz (1 THz = 10¹² Hz) for wireless communication, and may refer to terahertz (THz) band wireless communication using a very high carrier frequency of 100 GHz or higher. THz waves are located between the RF (Radio Frequency) / millimeter (mm) and infrared bands, and (i) they penetrate non-metallic / non-polar materials well compared to visible light / infrared, and have high directivity and beam focusing capabilities due to their shorter wavelength compared to RF / millimeter waves.

[0129] In addition, since the photon energy of THz waves is only a few meV, they have the characteristic of being harmless to the human body. The frequency bands expected to be used for THz wireless communication may be the D-band (110 GHz–170 GHz) or H-band (220 GHz–325 GHz) bands, where radio wave loss due to absorption by molecules in the air is small. Standardization discussions regarding THz wireless communication are being conducted primarily by the IEEE 802.15 THz WG (working group) in addition to 3GPP, and standard documents published by IEEE 802.15 TG (task group) (e.g., TG3d, TG3e) may elaborate on or supplement the contents described in this specification. THz wireless communication can be applied to wireless cognition, sensing, imaging, wireless communication, THz navigation, etc.

[0130] Specifically, referring to Fig. 7, THz wireless communication scenarios can be classified into macro networks, micro networks, and nanoscale networks. In macro networks, THz wireless communication can be applied to vehicle-to-vehicle (V2V) connections and backhaul / fronthaul connections. In micro networks, THz wireless communication can be applied to fixed point-to-point or multi-point connections, such as indoor small cells and wireless connections in data centers, as well as near-field communication, such as kiosk downloading. Table 2 below shows an example of a technology that can be utilized in the THz band.

[0131] Transceivers DeviceAvailable immature: UTC-PD, RTD and SBDModulation and codingLow order modulation techniques (OOK, QPSK), LDPC, Reed Soloman, Hamming, Polar, TurboAntennaOmni and Directional, phased array with low number of antenna elementsBandwidth69 GHz (or 23 GHz) at 300 GHzChannel modelsPartiallyData rate100 GbpsOutdoor deploymentNoFee space lossHighCoverageLowRadio Measurements300 GHz inddorDevice sizeFew micrometers

[0132] FIG. 8 illustrates a method for generating a THz signal applicable to the present disclosure. FIG. 9 also illustrates a wireless communication transceiver applicable to the present disclosure. Referring to FIG. 8 and FIG. 9, optical device-based THz wireless communication technology refers to a method of generating and modulating a THz signal using an optical device. Optical device-based THz signal generation technology is a technology that generates an ultra-high-speed optical signal using a laser and an optical modulator, and converts it into a THz signal using an ultra-high-speed photodetector. Compared to technology using only electronic devices, this technology makes it easier to increase the frequency, enables the generation of high-power signals, and allows for flat response characteristics over a wide frequency band. For optical device-based THz signal generation, a laser diode, a broadband optical modulator, and an ultra-high-speed photodetector are required, as illustrated in FIG. 8. In the case of FIG. 8, light signals from two lasers with different wavelengths are combined to generate a THz signal corresponding to the wavelength difference between the lasers. In FIG. 8, an optical coupler refers to a semiconductor device that uses light waves to transmit electrical signals in order to provide coupling with electrical isolation between circuits or systems, and a UTC-PD (uni-travelling carrier photo-detector) is a type of photodetector that uses electrons as active carriers and reduces the electron travel time through bandgap grading. The UTC-PD is capable of photodetect at 150 GHz or higher.In FIG. 9, EDFA (erbium-doped fiber amplifier) ​​represents an erbium-doped fiber amplifier, PD (photo detector) represents a semiconductor device capable of converting an optical signal into an electrical signal, OSA represents an optical sub-assembly that modularizes various optical communication functions (e.g., photoelectric conversion, electro-optical conversion, etc.) into a single component, and DSO represents a digital storage oscilloscope.

[0133] FIG. 10 illustrates a transmitter structure applicable to the present disclosure.

[0134] Referring to Fig. 10, in order to modulate data onto an optical signal, the optical source of a laser can be passed through an optical wave guide to change the phase of the signal. At this time, data is loaded by changing electrical characteristics through a microwave contact, etc. Therefore, the optical modulator output is formed as a modulated waveform.

[0135] Data may be provided by a data signal generator. Here, the data may include various user data, configuration information, control information, etc. transmitted through a channel. Furthermore, the data may include data related to AI-based operations, for example, information for configuring an AI model, input / output data for tasks of an AI model, etc. To this end, components related to AI functions (e.g., an AI processing unit) may be included in the data signal generator or may interact with the data signal generator.

[0136] An O / E converter can generate THz pulses based on optical rectification by a nonlinear crystal, O / E conversion by a photoconductive antenna, emission from a bundle of relativistic electrons, etc. THz pulses generated in such a manner can have a length ranging from femtoseconds to picoseconds. The O / E converter performs down-conversion by utilizing the non-linearity of the device.

[0137] When considering the usage of the THz spectrum, it is highly likely that multiple contiguous GHz bands will be used for fixed or mobile service applications for THz systems. According to outdoor scenario criteria, available bandwidth can be classified based on an oxygen attenuation of 10^2 dB / km in the spectrum up to 1 THz. Accordingly, a framework in which the available bandwidth is composed of multiple band chunks can be considered. As an example of the above framework, if the length of the THz pulse for a single carrier is set to 50 ps, ​​the bandwidth (BW) becomes approximately 20 GHz.

[0138] Effective down-conversion from the infrared band to the THz band depends on how the nonlinearity of the photoelectric converter (O / E converter) is utilized. In other words, to achieve down-conversion to the desired THz band, it is required to design an O / E converter with the most ideal nonlinearity for transferring to that specific band. If an O / E converter that does not match the target frequency band is used, there is a high probability of errors occurring regarding the amplitude and phase of the corresponding pulse.

[0139] In a single-carrier system, a THz transceiver system can be implemented using a single photoelectric converter. Depending on the channel environment, in a multi-carrier system, as many photoelectric converters as there are carriers may be required. This phenomenon will be particularly pronounced in multi-carrier systems utilizing multiple broadbands according to the plans related to the aforementioned spectrum applications. In this regard, a frame structure for the multi-carrier system may be considered. A signal down-frequency converted based on a photoelectric converter can be transmitted in a specific resource region (e.g., a specific frame). The frequency domain of the specific resource region may include multiple chunks. Each chunk may consist of at least one component carrier (CC).

[0140] Transmitting system information (e.g., MIB) in the THz frequency band can be inefficient because, in the case of high frequency bands, beam sweeping must be performed more frequently to cover the entire area of ​​the cell as the beam width becomes narrow. In particular, transmitting system information in this manner is even more inefficient when there are not many users in the cell. Accordingly, a system information transmission procedure as shown in FIG. 11 below may be used.

[0141] FIG. 11 illustrates a system information transmission procedure applicable to the present disclosure. FIG. 11 illustrates an example of a procedure for transmitting system information for THz communication. The procedure illustrated in FIG. 11 may be combined with various embodiments of the present disclosure described below. For example, embodiments described below may be performed based on system information obtained by the procedure illustrated in FIG. 11. As another example, information and / or data transmitted in the procedure illustrated in FIG. 11 may be generated and / or processed according to embodiments described below.

[0142] Referring to FIG. 11, in step 1101, the base station (1120) transmits system information of cell #1 through cell #2. That is, the base station (1120) provides at least two cells, cell #1 uses a THz frequency band, and cell #2 uses a frequency band other than the THz frequency band. Here, the system information may include at least one of SFN, PDCCH configuration for SIB1, cell barring, cell re-selection, and subcarrier spacing generated at the higher layer, and may include at least one of SFN, half frame indicator, and SSB index generated at the physical layer. To this end, as an example, cell #1 and cell #2 may have a relationship as a secondary cell and a primary cell.

[0143] In step 1103, the UE (1110) obtains synchronization for cell #1. Synchronization can be obtained by detecting a synchronization signal. Generally, synchronization is obtained prior to receiving system information, but since the system information for cell #1 is received from cell #2, synchronization for cell #1 can be obtained after receiving system information. For example, the UE (1110) can obtain synchronization based on system information. However, unlike FIG. 11, synchronization may be obtained before step 1101 according to other examples.

[0144] In step 1105, the UE (1110) transmits a signal to connect to cell #1. For example, the signal may include a random access preamble. The structure of the signal and the resource (e.g., channel) for transmitting the signal can be identified through system information. Subsequently, in step 1107, the UE (1110) and the base station (1120) perform a connection procedure to cell #1 and perform communication. In this step, operations according to various embodiments described below may be performed.

[0145] The procedure described with reference to FIG. 11 may be performed when the UE (1101) first connects to cell #1 of the base station (1120). Alternatively, a similar procedure may be performed when the UE (1101) handovers to cell #1 of the base station (1120). However, in the case of a handover, the system information of cell #1 may be received from a cell of a different base station other than cell #2 of the base station (1120).

[0146] Communication in the THz band is expected to experience severe path loss, and to overcome this, terminals and base stations must use very sharp beams. The use of sharp beams means that terminals and base stations must perform beam control along with beamforming, and the number of beams used becomes very large. Therefore, it takes a very long time to align the transmit and receive beams between the base station and the terminal. In addition, if the beam alignment between the base station and the terminal is misaligned due to the movement of the terminal, time is frequently required to realign the beams, which may result in an unstable link. Accordingly, a beam management procedure as shown in Fig. 12 below may be used.

[0147] FIG. 12 illustrates a beam management procedure applicable to the present disclosure. FIG. 12 illustrates an example of a procedure for searching and / or selecting beams for THz communication. The procedure illustrated in FIG. 12 may be combined with various embodiments of the present disclosure described below. For example, the embodiments described below may be performed using at least one beam obtained by the procedure illustrated in FIG. 11. As another example, information and / or data transmitted in the procedure illustrated in FIG. 12 may be generated and / or processed according to the embodiments described below. Here, a beam may be referred to as a 'spatial domain filter', a 'spatial domain transmit filter', a 'spatial domain receive filter', and other terms having an equivalent technical meaning.

[0148] Referring to FIG. 12, in step 1201, the base station (1220) configures resources for beam management. Here, the resources may include at least one of time-frequency resources, channels, and spatial resources (e.g., antenna ports). For example, the base station (1220) may utilize a beam search signal (BSS) that is transmitted spatially separated from the existing downlink signal / channel for beam search. Here, the BSS may be transmitted based on a dedicated port for beam search. The dedicated port may be a port different from the port for transmitting the existing downlink signal / channel (e.g., SSB, PDSCH, etc.). BSS is a term defined for convenience of explanation, and the technical concept according to the present embodiment is not limited to the term BSS itself. That is, a signal transmitted based on a dedicated port defined / configured for beam search may be included in the technical concept according to the present embodiment.

[0149] In step 1203, the base station (1201) transmits measurement signals using multiple transmission beams. For example, the measurement signals may include at least one of a reference signal and a synchronization signal. At this time, the measurement signals may be transmitted as many times as the number of beams requiring measurement, and may be transmitted using a multi-beam transmission method that forms multiple beams simultaneously to reduce sweeping time. Here, multi-beam transmission may be performed based on at least one of a multi-panel, a sub-array, and a true time delay (TTD).

[0150] In step 1205, the UE (1210) transmits a feedback signal to the base station (1220). The feedback signal indicates at least one beam selected by the UE (1210). The UE (1210) may select at least one preferred beam based on the measurement signals received in step 1203. In step 1207, the UE (1210) and the base station (1220) perform communication. At this time, the UE (1210) and the base station (1220) may perform communication using the beam selected in step 1205. If channel reciprocity is established, the transmission beam of the UE (1210) can also be determined through steps 1203 and 1205, so the transmission operation of the UE (1210) can also be performed using the beam selected in step 1205. If channel mutuality is not established, a procedure including the transmission of measurement signals of the UE (1210) and the transmission of feedback signals of the base station (1220) may be performed first to determine the transmission beam of the UE (1210). In step 1207, operations according to various embodiments described below may be performed.

[0151] Specific embodiments of the present disclosure

[0152] Hereinafter, a cross-link interference (CLI) measurement procedure and a structure of a reference signal for CLI measurement according to one embodiment of the present disclosure are described. CLI refers to interference caused by one terminal to another terminal. CLI measurement according to one embodiment of the present disclosure may be performed by a plurality of base stations and terminals connected to the plurality of base stations. The structure of a reference signal according to one embodiment of the present disclosure is not limited to CLI measurement and may be applied to reference signals for other purposes.

[0153] FIG. 13a illustrates a wireless communication system that supports different links in adjacent cells. Referring to FIG. 13a, in wireless communication, networks such as a Dynamic Time Division Duplex (TDD) system or a Subband Full Duplex (SBFD) system support different links in adjacent cells. In such a network, a terminal receiving a downlink signal is affected by cross-link interference (CLI) from a terminal transmitting an uplink signal of an adjacent cell. FIG. 13b illustrates uplink and downlink symbols received by a victim terminal. Referring to FIG. 13b, the uplink symbol is transmitted from the perpetrator terminal, and the downlink symbol is transmitted from the base station to which the victim terminal is connected. Due to the time delay caused by propagation between the base station and the terminal in the downlink and the timing advance (TA) that accounts for the propagation time delay in the uplink, a time difference occurs between the uplink symbol and the downlink symbol reaching the victim terminal. Here, the time at which the victim terminal, e.g., the first terminal (1310-1), receives an uplink signal from the aggressor terminal, e.g., the second terminal (1310-2), is earlier than the timing of receiving a downlink signal from the first base station (1320-1). It is as fast. It is calculated as in mathematical formula 1.

[0154]

[0155] In mathematical formula 1, is a time delay while a signal is propagated from the second terminal (1310-2) to the second base station (1320-2), is a time delay while a signal is propagated from the first terminal (1310-1) to the first base station (1320-1), This means the time delay while the signal is propagated from the second terminal (1310-2) to the first terminal (1310-1). It is calculated as in mathematical formula 2.

[0156]

[0157] In mathematical formula 2, is TA time, is the time delay caused by propagation, represents the offset. The TA time can be commanded by the base station and can be calculated as shown in Equation 3.

[0158]

[0159] In mathematical formula 3, is 0.509 ns, and is one of the values ​​from 0 to 3846. When, silver It has a smaller value compared to . That is, most Regarding the value Is Because it is significantly larger compared to can be neglected. Therefore, in Equation 1 is assumed

[0160] When the first terminal (1310-1) receives an uplink symbol at the same time as the downlink symbol boundary, If the CP (cyclic prefix) length is shorter than this, the first terminal (1310-1) can receive a complete uplink SRS symbol. However, When the length is longer than the CP length, as illustrated in FIG. 13b, the symbol of the offending terminal causes interference with the reference symbol of the first base station (1320-1) and the downlink symbol immediately before or after the reference symbol, and the symbol of the offending terminal spans the boundary of two consecutive symbols. That is, inter-symbol interference (ISI) occurs, which causes interference to neighboring symbols.

[0161] Table 3 shows the CP time and the transmission distance of electromagnetic waves during the CP time for each numerology.

[0162] Numerology ( )SCS (kHz)Symbol duration ( )CP for long symbolDistance (m)CP for other symbol ( )Distance (m)01566.675.215604.69140713033.332.868582.3470226016.671.69 (ECP:4.17)5071.17(ECP: 4.17)35131208.331.113330.5917742404.170.812430.298754802.080.672010.154569601.040.591770.0721

[0163] Here, the transmission distance is calculated as the product of the CP time and the speed of the electromagnetic wave, and the speed of the electromagnetic wave is It is assumed that. For example, if the second terminal (1310-2) and the first terminal (1310-1) are located at the cell edge, the distance between the terminals is very small, and the cells are the same size, refer to Equation 1. Is It is twice that. In such cases, In this case, ISI occurs because the symbol of the offending terminal is longer than the CP boundary, affecting the previous symbol. In other words, ISI occurs when the distance between the terminal and the base station—that is, the cell coverage distance—becomes greater than half of the distances in Table 3. For example, And if the cell coverage distance is greater than 351m, which is half the distance in Table 3, ISI occurs. Therefore, Based on this, the distance between cells and terminals and the distance between terminals that are not affected by ISI caused by CLI are determined. In other words, the maximum cell range is constrained by CLI. Furthermore, since the symbols of the offending terminal encroach upon IM (interference measurement) resources, a complete symbol cannot be received when measuring the CLI of the SRS (sounding reference signal) using those IM resources. Consequently, the victim terminal receives a distorted SRS signal due to ICI (inter-carrier interference). Such ISI and ICI can be compensated for through the design of reference signals for CLI measurement and IM resource allocation methods.

[0164] Below, an IM resource allocation method for compensating for the aforementioned ISI and ICI is proposed. Through the proposed IM resource allocation method, the victim terminal can receive the SRS transmitted by the perpetrator terminal without distortion.

[0165] CLI Interference Measurement Resource Allocation Method

[0166] FIG. 14 illustrates an example of IM resource allocation according to an embodiment of the present disclosure. Referring to FIG. 14, in order to measure the CLI influence of SRS, the conventional resource allocation method allocated identical symbols within the same slot as the transmission signal of the SRS configuration as CLI-IM. However, due to timing advance (TA) at each terminal, time delay This occurs, and as a result, the symbols before and after the downlink CLI-IM resources are affected by interference. To eliminate this effect, the base station must allocate additional IM resources to the terminal. These additional IM resources must be allocated to the symbol immediately preceding or following the IM resource for the CLI in the downlink.

[0167] Time delay For this, N additional IM resources are required according to the numerology μ. The number of these IM resources N is calculated as shown in Equation 4.

[0168]

[0169] In mathematical equation 4, μ is numerology, represents the time delay, and N represents the number of additional IM resources.

[0170] The time delay caused by radio waves increases with the distance between the terminal and the base station. Therefore, since the TA value also increases, The value increases. For example, if N>1 and numerology is 0 is approximately 71.36 It can be greater than or equal to. In the case of a homogeneous network where the terminals are close to each other, in other words, In this case, the cell coverage distance is 10km or more. Generally, when the cell range is within 10km, N=0 or N=1. Also, If the length is shorter than the CP length, N=0 and no additional IM resources are required. If ISI occurs due to CLI, N=1. In Equation 2, when N=1, additional IM resources are allocated.

[0171] FIG. 15 illustrates an example of a procedure for allocating additional IM resources according to one embodiment of the present disclosure. Referring to FIG. 15, in step S1501, CLI-IM resources are allocated as in a conventional method. CLI-IM resources are allocated to the same location as the SRS settings received by a base station (e.g., the first base station (1320-1) of FIG. 13a) from another base station (e.g., the second base station (1320-2) of FIG. 13a). In step S1503, the base station compares a distance value obtained by multiplying the sum of the TA values ​​of each terminal by the electromagnetic wave propagation speed based on TA with the minimum coverage value of each cell. In step S1505, if the value obtained by multiplying the sum of the electromagnetic wave propagation speed and TA is less than or equal to the minimum cell coverage distance, the base station allocates additional IM resources to symbols after CLI-IM. In step S1507, if the product of the electromagnetic wave transmission speed and the sum of TA is greater than the minimum cell coverage distance, the base station allocates the CLI-IM prior symbol as an additional IM resource.

[0172] Although not illustrated in FIG. 15, the base station may allocate both the preceding and succeeding symbols of the CLI-IM resource as additional IM resources. Additionally, the base station may allocate additional IM resources in slot units rather than in symbol units.

[0173] FIG. 16 illustrates an example of a terminal-to-terminal CLI measurement process using additional IM resources. In the example of FIG. 16, the first terminal is the victim terminal and the second terminal is the perpetrator terminal. The first base station and the second base station are base stations connected to the first terminal and the second base station, respectively.

[0174] Referring to FIG. 16, in step S1601, the first terminal (1610-1) measures the Received Signal Strength Indicator (RSSI) of the CLI, and if the RSSI is greater than or equal to a predefined value, reports the RSSI to the first base station (1620-1).

[0175] In step S1603, the first base station (1620-1) requests the second base station (1620-2) for configuration information regarding the RS for CLI measurement, which is the SRS, and information regarding the TA so that the victim terminal can measure the RSRP (Reference Signal Received Power).

[0176] In step S1605, the second base station (1620-2) transmits information regarding SRS setting information and TA to the first base station (1620-1). That is, it shares information regarding SRS setting information and TA with the second base station (1620-1).

[0177] In step S1607, the second base station (1620-2) transmits SRS scheduling information considering CLI measurements to the second terminal (1610-2). The SRS scheduling information includes SRS configuration information and directs resources for the SRS.

[0178] In step S1609, the first base station (1620-1) allocates resources. Here, the resources include existing CLI-IM resources and additional IM resources as resources for performing communication with the first terminal (1610-1). The first base station (1620-1) calculates TD1 and TD2 based on the TA of the first terminal (1610-1) and TA information received from the second base station (1620-2). Based on the calculated TD1 and TD2, the first base station (1620-1) can determine the location of additional IM resources and allocate resources.

[0179] In step S1611, the first base station (1620-1) transmits SRS configuration information and resource allocation information to the first terminal (1610-1). The SRS configuration information includes the SRS configuration information received by the first base station (1620-1) in step S1605. Here, the resource allocation information includes information regarding the IM resources allocated in step S1609.

[0180] In step S1613, the first base station (1620-1) transmits a downlink signal to the first terminal (1610-1). The downlink signal may be transmitted using the resources allocated in step S1609. The downlink signal may be transmitted using resources excluding CLI-IM resources and additional IM resources.

[0181] In step S1615, the second terminal (1610-2) transmits an SRS to the first terminal (1610-1) and the second base station (1620-2). Here, the SRS may be transmitted based on the scheduling information transmitted in step S1607. The SRS may be transmitted using a time and frequency that considers TA based on the SRS setting information received from the second base station (1620-2).

[0182] In step S1617, the first terminal (1610-1) receives an IM for the CLI of the first base station (1620-1) and an SRS of the first terminal (1610-2), measures the RSRP of the received SRS, and reports it to the first base station (1620-1).

[0183] Design of reference signals for CLI measurement

[0184] FIG. 17a illustrates SRS symbols including CP. FIG. 17b illustrates an example of extended SRS symbols according to one embodiment of the present disclosure. Referring to FIG. 17a, two consecutive SRS symbols are each generated independently. That is, the CP portion is generated independently of neighboring symbols. Referring to FIG. 17b, the first SRS symbol is generated independently. That is, it includes a CP independent of other SRS symbols, just like the existing SRS symbol. In the extended SRS symbol, the symbol following the first SRS symbol is generated as a cyclic extension of the previous symbol. Equation 5 represents a general SRS signal as an equation.

[0185]

[0186] In mathematical formula 5, N represents the SRS length.

[0187] General SRS signal of Equation 5 Adding CP to it results in Equation 6. Equation 6 represents the existing SRS symbol containing CP as a formula.

[0188]

[0189] Mathematical formula 7 represents an extended SRS symbol according to the present disclosure as a formula.

[0190]

[0191] In mathematical equation 7, N is the SRS length, and n is the CP length, means an extended SRS symbol according to one embodiment of the present disclosure.

[0192] In mathematical equation 7, the extended SRS is the part of the first SRS symbol excluding the CP The symbol is cyclically extended. That is, the part of the first SRS symbol excluding the CP is repeated. After the SRS symbols are cyclically extended, the beginning of the symbol is formed in the form of a cyclic postfix. In other words, a portion of the beginning of the symbol is added to the end of the extended SRS symbol.

[0193] When SRS symbols are generated using a ZC sequence, the preceding SRS symbol in the extended SRS is created by generating the ZC sequence, performing an IFFT, and then inserting a CP. The subsequent symbol in the extended SRS is generated based on the cyclic extension of the preceding symbol. These two symbols maintain continuity from the CP portion of the preceding symbol to the subsequent symbol. In other words, the extended SRS is a cyclically shifted form of the preceding SRS symbol, and the degree of cyclic shift can be calculated using the CP length and the preceding SRS symbol. This extended SRS can also function as a reference signal for channel sounding in the same way as the conventional SRS.

[0194] However, extended SRS and conventional SRS have different effects when measuring CLI. When the perpetrator terminal transmits SRS symbols such as those shown in FIG. 17a and FIG. 17b, the victim terminal receives the SRS symbols in the form shown in FIG. 18. FIG. 18a illustrates the conventional SRS symbols received by the victim terminal. FIG. 18b illustrates the extended SRS symbols received by the victim terminal. Referring to FIG. 18a and FIG. 18b, when the victim terminal receives conventional SRS symbols, that is, two independent SRS symbols, the SRS received as CLI within the IM interval forms a null section at the front DL symbol boundary and the end DL symbol boundary of the IM interval in the form of three symbols. In other words, it is impossible to receive a complete SRS symbol. Furthermore, since the signal received at the mid DL symbol boundary of the IM interval consists of parts of two independent SRSs received together, it is impossible to receive a complete single SRS symbol. If each SRS is generated based on the same ZC sequence, discontinuity occurs between SRS symbols, resulting in symbol distortion. In the case of an extended SRS generated by cyclic extension as shown in Fig. 18b, null intervals occur at the preceding and ending symbol boundaries, similar to Fig. 18a, making it difficult to receive a complete signal. However, the signal received at the intermediate symbol boundary is It is received as a complete SRS symbol in a cyclically shifted form, and the complete symbol is placed within the FFT window.

[0195] Hereinafter, a procedure for measuring CLI according to one embodiment of the present disclosure is described. The procedure for measuring CLI of the present disclosure may be performed by at least one of a first terminal, a second terminal, a first base station, or a second base station. Herein, the first terminal may be a victim terminal. The second terminal may be a perpetrator terminal. The first base station may be a base station connected to the first terminal. The second base station may be a base station connected to the second terminal. At least a portion of the cells of the first base station and the second base station may overlap in space.

[0196] FIG. 19 illustrates an example of a terminal procedure for CLI measurement and reporting according to one embodiment of the present disclosure. FIG. 19 illustrates a method performed by a first terminal.

[0197] Referring to FIG. 19, in step S1901, a first terminal (e.g., the first terminal (1610-1) of FIG. 16) performs interference measurement. For example, the interference measurement may include a measurement of CLI (cross-link interference)-RSSI (Received Signal Strength Indicator). The first terminal may receive configuration information related to interference measurement from a first base station (e.g., the first base station (1620-1) of FIG. 16) and perform interference measurement based on the received configuration information. For example, the first terminal may perform a measurement of CLI-RSSI using the CLI-RSSI resources included in the configuration information received from the first base station. Here, the interference measurement of the first terminal may be referred to as the first measurement.

[0198] In step S1903, the first terminal may report the measured interference to the first base station. The first terminal may report the results of the interference measurement to the first base station based on the measurement results. For example, the first terminal may measure the RSSI and report the RSSI to the first base station if the RSSI is higher than or equal to a predefined value.

[0199] In step S1905, the first terminal receives resource allocation information. The first terminal may receive resource allocation information from the first base station. For example, the resource allocation information may include resources for measuring a reference signal and additional resource information for measurement. In addition to the resource allocation information, the first terminal may receive information related to the reference signal of the second terminal (e.g., the second terminal (1610-2) of FIG. 16). For example, the information related to the reference signal may include SRS setting information of the second base station and the second terminal.

[0200] In step S1907, the first terminal receives a reference signal using allocated resources. The reference signal may be a reference signal transmitted from the second terminal. For example, the reference signal may be an SRS. Here, the SRS may include an extended SRS according to one embodiment of the present disclosure. The extended SRS may include one, two, or four symbols.

[0201] In step S1909, the first terminal measures and reports interference based on the received reference signal. The first terminal may report the interference measurement results to the first base station. For example, the interference measurement results may include the Reference Signal Received Power (RSRP) of the reference signal.

[0202] FIG. 20 illustrates an example of a terminal procedure for measuring CLI according to one embodiment of the present disclosure. FIG. 20 illustrates a method performed by a first terminal. FIG. 20 may include a procedure corresponding to steps S1901 through S1905 of FIG. 19.

[0203] Referring to FIG. 20, in step S2001, a first terminal (e.g., the first terminal (1610-1) of FIG. 16) measures CLI-RSSI. The first terminal measures CLI-RSSI, and if CLI-RSSI is higher than or equal to a predefined value, it may report the measured CLI-RSSI to a first base station (e.g., the first base station (1620-1) of FIG. 16).

[0204] In step S2003, the first terminal receives resource allocation information. The first terminal may receive resource allocation information from the first base station. Resource allocation information may be generated and transmitted by the first base station based on the report of step S2001. For example, the resource allocation information may include resources for measuring a reference signal and additional resource information for measurement. For example, the resources for measuring a reference signal may include CLI-IM resources. As another example, the additional resource information for measurement may include additional IM resources. In addition to the resource allocation information, the first terminal may receive information related to the reference signal of the second terminal (e.g., the second terminal (1610-2) of FIG. 16). For example, the information related to the reference signal may include SRS setting information of the second base station and the second terminal.

[0205] In step S2005, the first terminal receives a reference signal using allocated resources. Additionally, the first terminal may receive the reference signal based on information related to the reference signal. The reference signal may be a reference signal transmitted from the second terminal. The reference signal may include a signal transmitted for inter-terminal CLI measurement. For example, the reference signal may include an SRS. Here, the SRS may include an extended SRS according to one embodiment of the present disclosure. The extended SRS may include one, two, or four symbols.

[0206] In step S2007, the first terminal measures interference using a received reference signal. For example, the first terminal may measure interference using an SRS transmitted by the second terminal. For example, the interference measurement result may measure the influence of CLI using the reference signal. The interference may be measured based on the strength of the reference signal. For example, the interference measurement result may include CLI-SRS-RSRP. Additionally, the first terminal may report the interference measurement result to the second base station.

[0207] FIG. 21 illustrates an example of a base station procedure for CLI measurement and reporting according to one embodiment of the present disclosure. FIG. 21 illustrates a method performed by a first base station.

[0208] Referring to FIG. 21, in step S2101, a first base station (e.g., the first base station (1620-1) of FIG. 16) receives an interference report. A second base station may receive an interference report from a first terminal (e.g., the first terminal (1610-1) of FIG. 16). For example, the interference report may include a CLI-RSSI measurement report from the first terminal. Here, the first terminal may transmit an interference report to the first base station if the value of CLI-RSSI is greater than or equal to a predefined value. The interference report may be referred to as an interference report based on the first measurement.

[0209] In step S2103, the first base station receives information for resource allocation. The first base station may receive information for resource allocation from the second base station. For example, the information for resource allocation may include information regarding the setting of the reference signal of the second base station or information regarding the TA of the second terminal (e.g., the second terminal (1610-2) of FIG. 16) and the second base station. The information for resource allocation may be transmitted from the second base station at the request of the first base station.

[0210] In step S2105, the first base station allocates resources and transmits resource allocation information. For example, the first base station may allocate resources so that the first terminal can measure interference. For example, the allocated resources may include at least one of resources for measuring a reference signal or additional resources. Here, the additional resources may include symbols or slots located before or after the resources for measuring the reference signal. Here, before or after means before or after in the time domain. In other words, the additional resources may include resources located before or after at least one of the resources for measuring the reference signal in the time domain. The first base station may transmit information related to resource allocation to the first terminal.

[0211] In step S2107, the first base station receives an interference report measured using allocated resources. Here, the measurement using the resources allocated in step S2105 may be referred to as the second measurement. The first base station may receive an interference report measured by the first terminal. For example, the interference report may include CLI-SRS-RSRP measured by the first terminal using the SRS transmitted by the second terminal.

[0212] FIG. 22 illustrates a resource allocation procedure for CLI measurement according to one embodiment of the present disclosure. FIG. 22 illustrates a method performed by a first base station. The procedure illustrated in FIG. 22 may correspond to step S2103 or step S2105 of FIG. 21.

[0213] Referring to FIG. 22, in step S2201, a first base station (e.g., the first base station (1620-1) of FIG. 16) receives SRS setting information and TA information. Here, the SRS setting information is information for a second terminal (e.g., the second terminal (1610-2) of FIG. 16) to transmit SRS, and is generated by the first base station (e.g., the second base station (1620-2) of FIG. 16). The TA information is information used for communication between the second base station and the second terminal, and is information that the first base station instructs the second terminal.

[0214] In step S2203, the first base station determines the resource allocation location based on cell coverage distance and TA information. For example, the resource allocation location may include the location of additional IM resources. For example, the resource allocation location may be determined based on a comparison of the minimum value among the cell coverages of the base stations and the value obtained by multiplying the sum of the electromagnetic wave speed and the TA value. Alternatively, the resource allocation location may be determined based on the sum of TD values ​​based on the TA value. For example, the location of the additional IM resources may be before or after the CLI-IM resources. Here, before or after means before or after in the time domain. In other words, the additional IM resources may include resources located at least one before or after the CLI-IM resources in the time domain.

[0215] In step S2205, the first base station allocates resources based on the determined resource allocation location and SRS setting information. The first base station may allocate at least one of downlink resources, CLI-IM resources, or additional IM resources for the first terminal (e.g., the first terminal (1610-1) of FIG. 16). The first base station may generate resource allocation information using the allocated resources and transmit the resource allocation information to the first terminal.

[0216] FIG. 23 illustrates a procedure for providing information for CLI measurement according to one embodiment of the present disclosure. FIG. 23 illustrates a method performed by a second base station.

[0217] In S2301, a second base station (e.g., the second base station (1620-2) of FIG. 16) receives a request for configuration information related to a reference signal and information regarding TA. The second base station may receive an information request from a first base station (e.g., the first base station (1620-1) of FIG. 16). Here, the configuration information related to the reference signal may include information necessary for a second terminal (e.g., the second terminal (1610-2) of FIG. 16) to transmit the reference signal. For example, the configuration information related to the reference signal may include time and frequency resources used for transmitting the reference signal.

[0218] In step S2303, the second base station transmits configuration information related to the reference signal and information regarding the TA. The second base station may transmit configuration information related to the reference signal and information regarding the TA based on a request from the first base station. For example, the second base station may transmit configuration information related to the reference signal and information regarding the TA as a response to a request from the first base station. The configuration information related to the reference signal may include information for scheduling the second terminal to transmit the reference signal using predetermined time and frequency resources.

[0219] In step S2305, the second base station schedules a reference signal. Here, the reference signal may be a signal for measuring interference. For example, the reference signal may be an SRS for measuring CLI. The second base station may schedule the reference signal based on configuration information related to the reference signal. The second base station may transmit information regarding the scheduling of the reference signal to the second terminal.

[0220] Hereinafter, examples of wireless device applications to which various embodiments of the present disclosure are applied will be described.

[0221] FIG. 24 illustrates an example of a wireless device applicable to the present disclosure. The wireless device may be implemented in various forms depending on the use—example / service (see FIG. 1).

[0222] Referring to FIG. 24, the wireless device (200) corresponds to the wireless device (200) of FIG. 2 and may be composed of various elements, components, units / parts, and / or modules. For example, the wireless device (200) may include a communication unit (210), a control unit (220), a memory unit (230), and additional elements (240). The communication unit may include a communication circuit (212) and transceiver(s) (214). For example, the communication circuit (212) may include one or more processors (202) and / or one or more memories (204) of FIG. 2. For example, the transceiver(s) (214) may include one or more transceivers (206) and / or one or more antennas (208) of FIG. 2. The control unit (220) is electrically connected to the communication unit (210), the memory unit (230), and additional elements (240) and controls the overall operation of the wireless device. For example, the control unit (220) can control the electrical / mechanical operation of the wireless device based on a program / code / command / information stored in the memory unit (230). Additionally, the control unit (220) can transmit information stored in the memory unit (230) to an external entity (e.g., another communication device) via a wireless / wired interface through the communication unit (210), or store information received from an external entity (e.g., another communication device) via a wireless / wired interface through the communication unit (210) in the memory unit (230).

[0223] The additional element (240) may be configured in various ways depending on the type of wireless device. For example, the additional element (240) may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit. Although not limited thereto, the wireless device may be implemented in the form of a robot (Fig. 1, 100a), a vehicle (Fig. 1, 100b-1, 100b-2), an XR device (Fig. 1, 100c), a portable device (Fig. 1, 100d), a home appliance (Fig. 1, 100e), an IoT device (Fig. 1, 100f), a digital broadcasting terminal, a holographic device, a public safety device, an MTC device, a medical device, a fintech device (or financial device), a security device, a climate / environment device, an AI server / device (Fig. 1, 400), a base station (Fig. 1, 200), a network node, etc. Depending on the use—e.g., service—the wireless device may be movable or used in a fixed location.

[0224] In FIG. 24, various elements, components, units / parts, and / or modules within the wireless device (200) may be entirely interconnected via a wired interface, or at least some of them may be wirelessly connected via a communication unit (210). For example, within the wireless device (200), the control unit (220) and the communication unit (210) may be wired, and the control unit (220) and the first unit (e.g., 230, 240) may be wirelessly connected via the communication unit (210). Additionally, each element, component, unit / part, and / or module within the wireless device (200) may include one or more additional elements. For example, the control unit (220) may be composed of one or more sets of processors. For example, the control unit (220) may be composed of a set of a communication control processor, an application processor, an Electronic Control Unit (ECU), a graphics processing processor, a memory control processor, etc. As another example, the memory unit (130) may be composed of RAM (Random Access Memory), DRAM (Dynamic RAM), ROM (Read Only Memory), flash memory, volatile memory, non-volatile memory and / or a combination thereof.

[0225] Hereinafter, an implementation example of FIG. 24 will be described in more detail with reference to the drawings.

[0226] FIG. 25 illustrates an example of a portable device applicable to the present disclosure. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), or a portable computer (e.g., a laptop). The portable device may be referred to as a Mobile Station (MS), a User Terminal (UT), a Mobile Subscriber Station (MSS), a Subscriber Station (SS), an Advanced Mobile Station (AMS), or a Wireless Terminal (WT).

[0227] Referring to FIG. 25, the portable device (200) may include an antenna unit (208), a communication unit (210), a control unit (220), a memory unit (230), a power supply unit (240a), an interface unit (240b), and an input / output unit (240c). The antenna unit (208) may be configured as part of the communication unit (210). Blocks 210 to 230 / 240a to 240c of FIG. 25 correspond to blocks 210 to 230 / 240 of FIG. 24, respectively.

[0228] The communication unit (210) can transmit and receive signals (e.g., data, control signals, etc.) with other wireless devices and base stations. The control unit (220) can control the components of the portable device (200) to perform various operations. The control unit (220) may include an AP (Application Processor). The memory unit (230) can store data / parameters / programs / code / commands required for the operation of the portable device (200). Additionally, the memory unit (230) can store input / output data / information, etc. The power supply unit (240a) supplies power to the portable device (200) and may include wired / wireless charging circuits, batteries, etc. The interface unit (240b) can support the connection between the portable device (200) and other external devices. The interface unit (240b) may include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (240c) can receive or output video information / signals, audio information / signals, data, and / or information input by a user. The input / output unit (240c) may include a camera, a microphone, a user input unit, a display unit (240d), a speaker and / or a haptic module, etc.

[0229] For example, in the case of data communication, the input / output unit (240c) acquires information / signals (e.g., touch, text, voice, image, video) input by the user, and the acquired information / signals can be stored in the memory unit (230). The communication unit (210) converts the information / signals stored in the memory into wireless signals and can directly transmit the converted wireless signals to another wireless device or to a base station. Additionally, the communication unit (210) can receive wireless signals from another wireless device or base station and then restore the received wireless signals to their original information / signals. The restored information / signals are stored in the memory unit (230) and then can be output in various forms (e.g., text, voice, image, video, haptic) through the input / output unit (240c).

[0230] FIG. 26 illustrates an example of a vehicle or autonomous vehicle applicable to the present disclosure. The vehicle or autonomous vehicle may be implemented as a mobile robot, a vehicle, a train, an aerial vehicle (AV), a ship, etc.

[0231] Referring to FIG. 26, a vehicle or autonomous vehicle (200-1) may include an antenna unit (208-1), a communication unit (210-1), a control unit (220-1), a driving unit (240a-1), a power supply unit (240b-1), a sensor unit (240c-1), and an autonomous driving unit (240d-1). The antenna unit (208-1) may be configured as part of the communication unit (210-1). Blocks 210-1 / 230-1 / 240a-1 to 240d-1 of FIG. 26 correspond to blocks 210 / 230 / 240 of FIG. 24, respectively.

[0232] The communication unit (210-1) can transmit and receive signals (e.g., data, control signals, etc.) with external devices such as other vehicles, base stations (e.g., base stations, roadside base stations (Road Side Unit), etc.), and servers. The control unit (220-1) can perform various operations by controlling elements of the vehicle or autonomous vehicle (200-1). The control unit (220-1) may include an Electronic Control Unit (ECU). The driving unit (240a-1) can drive the vehicle or autonomous vehicle (200-1) on the ground. The driving unit (240a-1) may include an engine, motor, power train, wheels, brakes, steering device, etc. The power supply unit (240b-1) supplies power to the vehicle or autonomous vehicle (200-1) and may include wired / wireless charging circuits, batteries, etc. The sensor unit (240c-1) can obtain vehicle status, surrounding environment information, user information, etc. The sensor unit (240c-1) may include an IMU (inertial measurement unit) sensor, a collision sensor, a wheel sensor, a speed sensor, an inclination sensor, a weight detection sensor, a heading sensor, a position module, a vehicle forward / reverse sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor, a temperature sensor, a humidity sensor, an ultrasonic sensor, an illuminance sensor, a pedal position sensor, etc. The autonomous driving unit (240d-1) may implement technologies such as maintaining the driving lane, technologies for automatically adjusting speed such as adaptive cruise control, technologies for automatically driving along a predetermined path, and technologies for automatically setting a path and driving when a destination is set.

[0233] For example, the communication unit (210-1) can receive map data, traffic information data, etc. from an external server. The autonomous driving unit (240d-1) can generate an autonomous driving path and a driving plan based on the acquired data. The control unit (220-1) can control the drive unit (240a-1) so that the vehicle or the autonomous vehicle (200-1) moves along the autonomous driving path according to the driving plan (e.g., speed / direction control). During autonomous driving, the communication unit (210-1) can acquire the latest traffic information data from an external server non-periodically and can acquire surrounding traffic information data from surrounding vehicles. Additionally, during autonomous driving, the sensor unit (240c-1) can acquire vehicle status and surrounding environment information. The autonomous driving unit (240d-1) can update the autonomous driving path and the driving plan based on the newly acquired data / information. The communication unit (210-1) can transmit information regarding the vehicle location, autonomous driving path, driving plan, etc. to an external server. An external server can predict traffic information data in advance using AI technology, etc., based on information collected from vehicles or autonomous vehicles, and can provide the predicted traffic information data to vehicles or autonomous vehicles. If the device (220-2) is an autonomous vehicle, it can perform the same procedure as the vehicle or autonomous vehicle (200-1). In addition, if the device (220-2) is a base station or a roadside base station, the device (220-2) can transmit data and control signals to the vehicle or autonomous vehicle (200-1) through the communication unit (210-2).

[0234] FIG. 27 illustrates an example of a vehicle applicable to the present disclosure. The vehicle may be implemented as a means of transport, a train, an aircraft, a ship, etc. Referring to FIG. 27, the vehicle (200) may include a communication unit (210), a control unit (220), a memory unit (230), an input / output unit (240a), and a position measurement unit (240b). Here, blocks 210 to 230 / 240a to 240b correspond to blocks 210 to 230 / 240 of FIG. 24, respectively.

[0235] The communication unit (210) can transmit and receive signals (e.g., data, control signals, etc.) with other vehicles or external devices such as base stations. The control unit (220) can control the components of the vehicle (200) to perform various operations. The memory unit (230) can store data / parameters / programs / codes / commands that support various functions of the vehicle (100). The input / output unit (240a) can output AR / VR objects based on information within the memory unit (230). The input / output unit (240a) may include a HUD. The position measurement unit (240b) can acquire position information of the vehicle (200). The position information may include absolute position information of the vehicle (200), position information within the driving line, acceleration information, position information relative to surrounding vehicles, etc. The position measurement unit (240b) may include GPS and various sensors.

[0236] For example, the communication unit (210) of the vehicle (200) can receive map information, traffic information, etc. from an external server and store it in the memory unit (230). The location measurement unit (240b) can acquire vehicle location information through GPS and various sensors and store it in the memory unit (230). The control unit (220) creates a virtual object based on map information, traffic information, and vehicle location information, etc., and the input / output unit (240a) can display the created virtual object on the glass window inside the vehicle (240a-1, 240a-2). In addition, the control unit (220) can determine whether the vehicle (200) is operating normally within the driving line based on the vehicle location information. If the vehicle (200) deviates abnormally from the driving line, the control unit (220) can display a warning on the glass window inside the vehicle through the input / output unit (240a). Additionally, the control unit (220) can broadcast a warning message regarding a driving abnormality to surrounding vehicles through the communication unit (210). Depending on the situation, the control unit (220) can transmit the vehicle's location information and information regarding the driving / vehicle abnormality to relevant authorities through the communication unit (210).

[0237] FIG. 28 illustrates an example of an XR device applicable to the present disclosure. The XR device may be implemented as an HMD, a Head-Up Display (HUD) equipped in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, digital signage, a vehicle, a robot, etc.

[0238] Referring to FIG. 28, the XR device (200a) may include a communication unit (210), a control unit (220), a memory unit (230), an input / output unit (240a), a sensor unit (240b), and a power supply unit (240c). Here, blocks 210 to 230 / 240a to 240c of FIG. 28 correspond to blocks 210 to 230 / 240 of FIG. 24, respectively.

[0239] The communication unit (210) can transmit and receive signals (e.g., media data, control signals, etc.) with external devices such as other wireless devices, mobile devices, or media servers. The media data may include video, images, sound, etc. The control unit (220) can control the components of the XR device (200a) to perform various operations. For example, the control unit (220) may be configured to control and / or perform procedures such as video / image acquisition, (video / image) encoding, metadata generation, and processing. The memory unit (230) may store data / parameters / programs / code / commands required for driving the XR device (200a) or creating an XR object. The input / output unit (240a) acquires control information, data, etc. from the outside and can output the created XR object. The input / output unit (240a) may include a camera, microphone, user input unit, display unit, speaker and / or haptic module, etc. The sensor unit (240b) can obtain XR device status, surrounding environment information, user information, etc. The sensor unit (240b) may include a proximity sensor, an illuminance sensor, an accelerometer, a magnetic sensor, a gyroscope, an inertial sensor, an RGB sensor, an IR sensor, a fingerprint recognition sensor, an ultrasonic sensor, a light sensor, a microphone and / or radar, etc. The power supply unit (240c) supplies power to the XR device (200a) and may include a wired / wireless charging circuit, a battery, etc.

[0240] For example, the memory unit (230) of the XR device (200a) may contain information (e.g., data, etc.) necessary for creating an XR object (e.g., AR / VR / MR object). The input / output unit (240a) may receive a command to operate the XR device (200a) from the user, and the control unit (220) may operate the XR device (200a) according to the user's operation command. For example, if the user intends to watch movies, news, etc. through the XR device (200a), the control unit (220) may transmit content request information to another device (e.g., mobile device (200b)) or a media server through the communication unit (230). The communication unit (230) may download / stream content such as movies, news, etc. from another device (e.g., mobile device (200b)) or a media server to the memory unit (230). The control unit (220) controls and / or performs procedures such as video / image acquisition, (video / image) encoding, and metadata generation / processing for the content, and can generate / output an XR object based on information about the surrounding space or real object acquired through the input / output unit (240a) / sensor unit (240b).

[0241] Additionally, the XR device (200a) is wirelessly connected to the mobile device (200b) through the communication unit (210), and the operation of the XR device (200a) can be controlled by the mobile device (200b). For example, the mobile device (200b) can act as a controller for the XR device (200a). To this end, the XR device (200a) can acquire three-dimensional position information of the mobile device (200b), and then generate and output an XR object corresponding to the mobile device (200b).

[0242] FIG. 29 illustrates an example of a robot applicable to the present disclosure. Robots may be classified into industrial, medical, domestic, military, etc., depending on the purpose or field of use.

[0243] Referring to FIG. 29, the robot (200) may include a communication unit (210), a control unit (220), a memory unit (230), an input / output unit (240a), a sensor unit (240b), and a driving unit (240c). Here, blocks 210 to 230 / 240a to 240c of FIG. 29 correspond to blocks 210 to 230 / 240 of FIG. 24, respectively.

[0244] The communication unit (210) can transmit and receive signals (e.g., driving information, control signals, etc.) with external devices such as other wireless devices, other robots, or control servers. The control unit (220) can control the components of the robot (200) to perform various operations. The memory unit (230) can store data / parameters / programs / codes / commands that support various functions of the robot (200). The input / output unit (240a) can acquire information from outside the robot (200) and output information to outside the robot (200). The input / output unit (240a) may include a camera, microphone, user input unit, display unit, speaker and / or haptic module, etc. The sensor unit (240b) can obtain internal information of the robot (200), surrounding environment information, user information, etc. The sensor unit (240b) may include a proximity sensor, an illuminance sensor, an accelerometer, a magnetic sensor, a gyroscope, an inertial sensor, an IR sensor, a fingerprint recognition sensor, an ultrasonic sensor, a light sensor, a microphone, a radar, etc. The driving unit (240c) may perform various physical movements, such as moving robot joints. Additionally, the driving unit (240c) may enable the robot (200) to travel on the ground or fly in the air. The driving unit (240c) may include an actuator, a motor, a wheel, a brake, a propeller, etc.

[0245] FIG. 30 illustrates an example of an AI device applicable to the present disclosure.

[0246] AI devices can be implemented as stationary devices or mobile devices, such as TVs, projectors, smartphones, PCs, laptops, digital broadcasting terminals, tablet PCs, wearable devices, set-top boxes (STBs), radios, washing machines, refrigerators, digital signage, robots, vehicles, etc.

[0247] Referring to FIG. 30, the AI ​​device (200) may include a communication unit (210), a control unit (220), a memory unit (230), an input / output unit (240a / 240b), a learning processor unit (240c), and a sensor unit (240d). Blocks 210 to 230 / 240a to 240d of FIG. 30 correspond to blocks 210 to 230 / 140 of FIG. 24, respectively.

[0248] The communication unit (210) can transmit and receive wired and wireless signals (e.g., sensor information, user input, learning model, control signal, etc.) with external devices such as other AI devices (e.g., 100a to 100f, 120 in FIG. 1) or AI servers (e.g., 100g in FIG. 1) using wired and wireless communication technology. To this end, the communication unit (210) can transmit information within the memory unit (230) to an external device or transmit signals received from an external device to the memory unit (230).

[0249] The control unit (220) can determine at least one executable operation of the AI ​​device (200) based on information determined or generated using a data analysis algorithm or a machine learning algorithm. The control unit (220) can perform the determined operation by controlling the components of the AI ​​device (200). For example, the control unit (220) can request, search, receive, or utilize data from the learning processor unit (240c) or the memory unit (230), and can control the components of the AI ​​device (200) to execute a predicted operation or an operation determined to be desirable among at least one executable operation. Additionally, the control unit (220) can collect historical information, including the operation content of the AI ​​device (200) or user feedback regarding the operation, and store it in the memory unit (230) or the learning processor unit (240c), or transmit it to an external device such as an AI server (Fig. 1, 100g). The collected historical information can be used to update the learning model.

[0250] The memory unit (230) can store data that supports various functions of the AI ​​device (200). For example, the memory unit (230) can store data obtained from the input unit (240a), data obtained from the communication unit (210), output data from the learning processor unit (240c), and data obtained from the sensing unit (140). Additionally, the memory unit (230) can store control information and / or software code required for the operation / execution of the control unit (220).

[0251] The input unit (240a) can acquire various types of data from outside the AI ​​device (200). For example, the input unit (220) can acquire training data for model training and input data to which the training model is applied. The input unit (240a) may include a camera, a microphone and / or a user input unit, etc. The output unit (240b) can generate output related to visual, auditory, or tactile senses, etc. The output unit (240b) may include a display unit, a speaker and / or a haptic module, etc. The sensing unit (140d) can obtain at least one of internal information of the AI ​​device (200), surrounding environment information of the AI ​​device (200), and user information using various sensors. The sensing unit (140d) may include a proximity sensor, an illuminance sensor, an accelerometer, a magnetic sensor, a gyroscope, an inertial sensor, an RGB sensor, an IR sensor, a fingerprint recognition sensor, an ultrasonic sensor, a light sensor, a microphone and / or radar, etc.

[0252] The learning processor unit (240c) can train a model composed of an artificial neural network using training data. The learning processor unit (240c) can perform AI processing together with the learning processor unit of the AI ​​server (Fig. 1, 100g). The learning processor unit (240c) can process information received from an external device through the communication unit (210) and / or information stored in the memory unit (230). Additionally, the output value of the learning processor unit (240c) can be transmitted to an external device through the communication unit (210) and / or stored in the memory unit (230).

[0253] The proposed methods described above may be implemented independently, but they may also be implemented in the form of a combination (or merger) of some of the proposed methods. Rules may be defined so that the base station informs the terminal of the application status of the proposed methods (or information regarding the rules of the proposed methods) through a predefined signal (e.g., a physical layer signal or an upper layer signal).

[0254] The present disclosure may be embodied in other specific forms without departing from the technical ideas and essential features described herein. Accordingly, the above detailed description should not be interpreted restrictively in all respects and should be considered illustrative. The scope of the present disclosure shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present disclosure are included within the scope of the present disclosure. Furthermore, embodiments may be constructed by combining claims that are not explicitly related in the claims, or new claims may be included by amendments made after filing.

[0255] The embodiments of the present disclosure can be applied to various wireless access systems. Examples of various wireless access systems include the 3GPP (3rd Generation Partnership Project) or 3GPP2 systems.

[0256] The embodiments of the present disclosure can be applied not only to the various wireless access systems mentioned above but also to all technical fields utilizing the various wireless access systems. Furthermore, the proposed method can be applied to mmWave and THz communication systems utilizing the ultra-high frequency band.

[0257] Additionally, the embodiments of the present disclosure may also be applied to various applications, such as autonomous vehicles and drones.

Claims

1. Regarding the method, Step of performing a first measurement for interference; A step of reporting the result of the first measurement above; A step of receiving setting information and resource allocation information related to a reference signal for a second measurement; A step of performing the second measurement on the received reference signal based on the setting information related to the reference signal and the resource allocation information; and The step of reporting the result of the second measurement above is included, A method wherein the reference signal comprises at least one of a reference signal symbol, a portion excluding a CP (cyclic prefix) from the reference signal symbol, or the foremost portion of said portion.

2. In Paragraph 1, A method comprising the above resource allocation information including resources for measuring the reference signal and additional resource information for measurement.

3. In Paragraph 2, The above additional resource information is determined by a method based on the cell coverage of each base station and the timing advance (TA) between the base stations and the terminals.

4. In Paragraph 3, A method in which the above additional resource information includes the location of additional resources for measurement determined based on the result of comparing the sum of the above TAs and the product of the electromagnetic wave velocity and the cell coverage.

5. In Paragraph 4, A method in which the above additional resources include resources after the resources for measuring the reference signal in the time domain when the minimum value of the cell coverage is greater than or equal to the product of the sum of the TAs and the speed of the electromagnetic wave.

6. In Paragraph 4, A method in which the additional resources include resources prior to the resources for measuring the reference signal in the time domain when the minimum value of the cell coverage is smaller than the product of the sum of the TAs and the speed of the electromagnetic wave.

7. In Paragraph 1, The first measurement above is a measurement for CLI-RSSI, and A method in which the result of the first measurement is reported only when the result of the first measurement is higher than a predefined value.

8. In Paragraph 1, The above second measurement is a method for measuring SRS-RSRP using an SRS (sounding reference signal) transmitted from another terminal.

9. Regarding the method, Step of receiving a result report of the first measurement; A step of receiving setting information for a reference signal for a second measurement and information for resource allocation based on a request; A step of allocating resources for the second measurement above; A step of transmitting the setting information and resource allocation information of the above reference signal; The method includes the step of receiving a result report of the second measurement based on setting information related to the reference signal and the resource allocation information, wherein A method wherein the reference signal comprises at least one of a reference signal symbol, a portion excluding a CP (cyclic prefix) from the reference signal symbol, or the foremost portion of said portion.

10. In Paragraph 9, A method comprising the above resource allocation information including resources for measuring the reference signal and additional resource information for measurement.

11. In Paragraph 10, A step of requesting information regarding TA (timing advance) from another base station; and The method further includes the step of receiving information regarding the TA from another base station, The above additional resource information is determined by a method based on the cell coverage of each base station and the TA between the base stations and terminals.

12. In Paragraph 11, A method in which the above additional resource information includes the location of additional resources for measurement determined based on the result of comparing the sum of the above TAs and the product of the electromagnetic wave velocity and the cell coverage.

13. In Paragraph 12, A method in which the above additional resources include resources after the resources for measuring the reference signal in the time domain when the minimum value of the cell coverage is greater than or equal to the product of the sum of the TAs and the speed of the electromagnetic wave.

14. In Paragraph 12, A method in which the additional resources include resources prior to the resources for measuring the reference signal in the time domain when the minimum value of the cell coverage is smaller than the product of the sum of the TAs and the speed of the electromagnetic wave.

15. In Paragraph 9, The first measurement above is a measurement for CLI-RSSI, and A method in which the result of the first measurement is reported only when the result of the first measurement is higher than a predefined value.

16. In Paragraph 9, The above second measurement is a method of measuring SRS-RSRP using SRS transmitted from another terminal.

17. In the device, Transmitter / receiver; and It includes a processor coupled to the above-mentioned transmitter and receiver, The above processor is, In terms of method, Perform a first measurement of the interference, Report the results of the above first measurement, and Receives setting information and resource allocation information related to a reference signal for a second measurement, and Based on the setting information related to the reference signal and the resource allocation information, the second measurement is performed on the received reference signal, and It is configured to report the results of the second measurement above, The above reference signal is a device comprising at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

18. In the device, Transmitter / receiver; and It includes a processor coupled to the above-mentioned transmitter and receiver, The above processor is, Receive the result report of the first measurement, Receive setting information for a reference signal for a second measurement and information for resource allocation based on a request, and Allocate resources for the above second measurement, Transmitting the setting information and resource allocation information of the above reference signal, and It is configured to receive a result report of the second measurement based on setting information related to the reference signal and the resource allocation information, A method in which the above reference signal comprises at least one of a reference signal symbol, a portion excluding CP from the reference signal symbol, or the foremost portion of said portion.

19. In the terminal, At least one processor; It includes at least one memory connected to the at least one processor and storing instructions that cause a terminal to perform operations as executed by the at least one processor, The above operations are, Step of performing a first measurement for interference; A step of reporting the result of the first measurement above; A step of receiving setting information and resource allocation information related to a reference signal for a second measurement; A step of performing the second measurement on the received reference signal based on the setting information related to the reference signal and the resource allocation information; and The step of reporting the result of the second measurement above is included, The above reference signal is a terminal comprising at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

20. In a non-transitory computer-readable medium storing at least one program instruction, The above at least one program instruction causes the terminal to perform operations as it is executed by at least one processor, and The above operations are, Step of performing a first measurement for interference; A step of reporting the result of the first measurement above; A step of receiving setting information and resource allocation information related to a reference signal for a second measurement; A step of performing the second measurement on the received reference signal based on the setting information related to the reference signal and the resource allocation information; and The step of reporting the result of the second measurement above is included, The above reference signal is a computer-readable medium comprising at least one of a reference signal symbol, a portion of the reference signal symbol excluding CP, or the foremost portion of said portion.

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