WO2022086122A1 - Interruption by srs transmission antenna switching - Google Patents

Abstract

One disclosure of the present specification provides a method by which a user equipment (UE) performs communication. The method comprises the steps of: receiving a capability enquiry of the UE from a base station; transmitting capability information of the UE to the base station; receiving configuration information regarding an interrupted slot from the base station; transmitting a first sounding reference signal (SRS) to the base station through a first antenna; performing antenna switching; transmitting a second SRS to the base station through a second antenna; and skipping, in the interrupted slot, transmission and reception of a signal through a second cell, on the basis of the configuration information regarding the interrupted slot, wherein the transmitting of the first SRS, the transmitting of the second SRS, and the antenna switching are performed in a first cell, the antenna switching is switching between the first antenna and the second antenna, the interrupted slot is a slot where interruption occurs by the antenna switching in the second cell, and the interrupted slot is based on i) the capability information, ii) a slot configuration, iii) subcarrier spacing (SCS) of the first cell, and iv) SCS of the second cell.

Description

Disturbance due to SRS transmit antenna switching

This specification relates to mobile communication.

3rd generation partnership project (3GPP) long-term evolution (LTE) is a technology for enabling high-speed packet communication. Many methods have been proposed to reduce costs for users and operators, which are LTE goals, to improve service quality, to expand coverage, and to increase system capacity. 3GPP LTE requires lower cost per bit, improved service availability, flexible use of frequency bands, simple structure, open interface, and proper power consumption of terminals as high-level requirements.

Work has begun to develop requirements and specifications for NR (new radio) systems in the International Telecommunication Union (ITU) and 3GPP. 3GPP identifies the necessary technical components to successfully standardize NR in a timely manner that meets both urgent market needs and the longer-term requirements set forth by the ITU radio communication sector (ITU-R) international mobile telecommunications (IMT)-2020 process. and should be developed Furthermore, NR must be able to use any spectral band up to at least 100 GHz which can be used for wireless communication even in the distant future.

NR targets a single technology framework that covers all deployment scenarios, usage scenarios and requirements, including enhanced mobile broadband (eMBB), massive machine type-communications (mMTC), ultra-reliable and low latency communications (URLLC), etc. do. NR must be forward compatible in nature.

The previously discussed interruption sets the interruption regardless of the slot configuration, so that the overall system performance is degraded by unnecessary interference.

With respect to the interference caused by SRS antenna switching, the interference may be configured in consideration of the characteristics of the slot configuration.

The present specification may have various effects.

For example, through the procedure disclosed in this specification, by setting an interruption time (transmission/reception cutoff time of the terminal) in consideration of the characteristics of the slot setting for interruption due to switching of the SRS transmit antenna, it is possible to efficiently transmit/receive with the network let there be

Effects that can be obtained through specific examples of the present specification are not limited to the effects listed above. For example, various technical effects that a person having ordinary skill in the related art can understand or derive from this specification may exist. Accordingly, the specific effects of the present specification are not limited to those explicitly described herein, and may include various effects that can be understood or derived from the technical characteristics of the present specification.

1 shows an example of a communication system to which an implementation of the present specification is applied.

2 shows an example of a wireless device to which the implementation of the present specification is applied.

3 shows an example of a wireless device to which the implementation of the present specification is applied.

4 shows an example of a UE to which the implementation of the present specification is applied.

5A to 5C are exemplary diagrams illustrating an exemplary architecture for a service of next-generation mobile communication.

6 shows an example of subframe types in NR.

7 is an exemplary diagram illustrating an example of SSB in NR.

8 is an exemplary diagram illustrating an example of beam sweeping in NR.

9 is an exemplary diagram illustrating an example of SRS configuration for SRS antenna switching.

10 shows an example of interference in 1T2R and 2T4R terminals in EN-DC.

11 shows an example of interference in a UE that does not need switching for 1T4R and PUSCH.

12 and 13 show examples of interference in a UE requiring switching for 1T4R and PUSCH.

14 shows procedures of a terminal and a base station according to the disclosure of the present specification.

15 shows an example of interference in 1T2R and 2T4R terminals in an NR PSCell or Scell.

16 shows an example of interference in a UE that does not need switching for 1T4R and PUSCH.

17 shows an example of interference in 1T2R and 2T4R terminals in an NR PSCell or Scell.

18 shows an example of interference in a terminal that does not need switching for 1T4R and PUSCH in asynchronous manner.

19 shows an example of SRS resource configuration for each SRS-ResourceSet for resourceType that is 'aperiodic'.

20 shows an example of SRS resource configuration for each SRS-ResourceSet for resourceType that is 'periodicity' in 1T2R UE.

21 shows an example of antenna switching before and after SRS transmission.

22 shows an interruption in a UL-DL slot.

23 shows an interruption in a UL-UL slot.

24 shows interruption in the case of a flexible symbol.

25 shows a procedure of a terminal according to the disclosure of the present specification.

26 shows a procedure of a base station according to the disclosure of the present specification.

The following technique, apparatus and system can be applied to various wireless multiple access systems. Examples of multiple access systems include a code division multiple access (CDMA) system, a frequency division multiple access (FDMA) system, a time division multiple access (TDMA) system, an orthogonal frequency division multiple access (OFDMA) system, a system, and a single SC-FDMA (single) system. It includes a carrier frequency division multiple access) system, and a multicarrier frequency division multiple access (MC-FDMA) system. CDMA may be implemented over a radio technology such as universal terrestrial radio access (UTRA) or CDMA2000. TDMA may be implemented through a radio technology such as global system for mobile communications (GSM), general packet radio service (GPRS), or enhanced data rates for GSM evolution (EDGE). OFDMA may be implemented through a wireless technology such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or E-UTRA (evolved UTRA). UTRA is part of the universal mobile telecommunications system (UMTS). 3rd generation partnership project (3GPP) long-term evolution (LTE) is a part of evolved UMTS (E-UMTS) using E-UTRA. 3GPP LTE uses OFDMA in downlink (DL) and SC-FDMA in uplink (UL). Evolution of 3GPP LTE includes LTE-A (advanced), LTE-A Pro, and/or 5G NR (new radio).

For convenience of description, the implementation of the present specification is mainly described in relation to a 3GPP-based wireless communication system. However, the technical characteristics of the present specification are not limited thereto. For example, the following detailed description is provided based on a mobile communication system corresponding to the 3GPP-based wireless communication system, but aspects of the present specification that are not limited to the 3GPP-based wireless communication system may be applied to other mobile communication systems.

For terms and techniques not specifically described among terms and techniques used in this specification, reference may be made to a wireless communication standard document issued before this specification.

In this specification, "A or B (A or B)" may mean "only A", "only B", or "both A and B". In other words, in the present specification, "A or B (A or B)" may be interpreted as "A and/or B (A and/or B)". For example, "A, B or C(A, B or C)" herein means "only A", "only B", "only C", or "any and any combination of A, B and C ( any combination of A, B and C)".

As used herein, a slash (/) or a comma (comma) may mean “and/or”. For example, “A/B” may mean “A and/or B”. Accordingly, “A/B” may mean “only A”, “only B”, or “both A and B”. For example, “A, B, C” may mean “A, B, or C”.

As used herein, "at least one of A and B" may mean "only A", "only B", or "both A and B". In addition, in this specification, the expression "at least one of A or B" or "at least one of A and/or B" means "A and It may be construed the same as "at least one of A and B".

Also, as used herein, "at least one of A, B and C" means "only A", "only B", "only C", or "A, B and C" any combination of A, B and C". In addition, "at least one of A, B or C" or "at least one of A, B and/or C" means can mean “at least one of A, B and C”.

In addition, parentheses used herein may mean "for example". Specifically, when displayed as “control information (PDCCH)”, “PDCCH” may be proposed as an example of “control information”. In other words, "control information" in the present specification is not limited to "PDCCH", and "PDCCH" may be proposed as an example of "control information". Also, even when displayed as “control information (ie, PDCCH)”, “PDCCH” may be proposed as an example of “control information”.

In this specification, technical features that are individually described within one drawing may be implemented individually or simultaneously.

Although not limited thereto, the various descriptions, functions, procedures, suggestions, methods, and/or operation flowcharts disclosed herein may be applied to various fields requiring wireless communication and/or connection (eg, 5G) between devices.

Hereinafter, the present specification will be described in more detail with reference to the drawings. In the following drawings and/or descriptions, the same reference numbers may refer to the same or corresponding hardware blocks, software blocks, and/or functional blocks unless otherwise indicated.

1 shows an example of a communication system to which an implementation of the present specification is applied.

The 5G usage scenario shown in FIG. 1 is only an example, and the technical features of the present specification may be applied to other 5G usage scenarios not shown in FIG. 1 .

The three main requirements categories for 5G are (1) enhanced mobile broadband (eMBB) category, (2) massive machine type communication (mMTC) category, and (3) ultra-reliable, low-latency communication. (URLLC; ultra-reliable and low latency communications) category.

Referring to FIG. 1 , a communication system 1 includes wireless devices 100a to 100f , a base station (BS) 200 , and a network 300 . 1 illustrates a 5G network as an example of a network of the communication system 1, the implementation of the present specification is not limited to the 5G system, and may be applied to future communication systems beyond the 5G system.

Base station 200 and network 300 may be implemented as wireless devices, and certain wireless devices may act as base station/network nodes in relation to other wireless devices.

The wireless devices 100a to 100f represent devices that perform communication using a radio access technology (RAT) (eg, 5G NR or LTE), and may also be referred to as a communication/wireless/5G device. The wireless devices 100a to 100f are not limited thereto, and the robot 100a, the vehicles 100b-1 and 100b-2, the extended reality (XR) device 100c, the portable device 100d, and home appliances are not limited thereto. It may include a product 100e, an IoT device 100f, and an artificial intelligence (AI) device/server 400 . For example, a vehicle may include a vehicle with a wireless communication function, an autonomous vehicle, and a vehicle capable of performing vehicle-to-vehicle communication. Vehicles may include unmanned aerial vehicles (UAVs) (eg drones). XR devices may include AR/VR/mixed reality (MR) devices, and may include head-mounted devices (HMDs) mounted on vehicles, televisions, smartphones, computers, wearable devices, home appliances, digital signs, vehicles, robots, and the like. mounted device) or HUD (head-up display). Portable devices may include smartphones, smart pads, wearable devices (eg, smart watches or smart glasses), and computers (eg, laptops). Home appliances may include TVs, refrigerators, and washing machines. IoT devices may include sensors and smart meters.

In this specification, the wireless devices 100a to 100f may be referred to as user equipment (UE). The UE is, for example, a mobile phone, a smartphone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, a slate PC, a tablet PC, an ultrabook, a vehicle, an autonomous driving function. Vehicles with, connected cars, UAVs, AI modules, robots, AR devices, VR devices, MR devices, holographic devices, public safety devices, MTC devices, IoT devices, medical devices, fintech devices (or financial devices), security devices , weather/environmental devices, 5G service related devices, or 4th industrial revolution related devices.

For example, the UAV may be an aircraft that does not have a person on board and is navigated by a radio control signal.

For example, the VR device may include a device for realizing an object or a background of a virtual environment. For example, the AR device may include a device implemented by connecting an object or background in a virtual world to an object or background in the real world. For example, the MR apparatus may include a device implemented by merging the background of an object or virtual world with the background of the object or the real world. For example, the hologram device may include a device for realizing a 360-degree stereoscopic image by recording and reproducing stereoscopic information using an interference phenomenon of light generated when two laser lights called a hologram meet.

For example, the public safety device may include an image relay device or an image device that can be worn on a user's body.

For example, MTC devices and IoT devices may be devices that do not require direct human intervention or manipulation. For example, MTC devices and IoT devices may include smart meters, vending machines, thermometers, smart light bulbs, door locks, or various sensors.

For example, a medical device may be a device used for the purpose of diagnosing, treating, alleviating, treating, or preventing a disease. For example, a medical device may be a device used to diagnose, treat, alleviate, or correct an injury or injury. For example, a medical device may be a device used for the purpose of examining, replacing, or modifying structure or function. For example, the medical device may be a device used for pregnancy control purposes. For example, a medical device may include a device for treatment, a device for driving, an (ex vivo) diagnostic device, a hearing aid, or a device for a procedure.

For example, a security device may be a device installed to prevent a risk that may occur and to maintain safety. For example, the security device may be a camera, closed circuit television (CCTV), recorder or black box.

For example, the fintech device may be a device capable of providing financial services such as mobile payment. For example, a fintech device may include a payment device or a POS system.

For example, the weather/environment device may include a device for monitoring or predicting the weather/environment.

The wireless devices 100a to 100f may be connected to the network 300 through the base station 200 . AI technology may be applied to the wireless devices 100a to 100f , and the wireless devices 100a to 100f may be connected to the AI server 400 through the network 300 . The network 300 may be configured using a 3G network, a 4G (eg, LTE) network, a 5G (eg, NR) network, and a 5G or later network. The wireless devices 100a to 100f may communicate with each other through the base station 200/network 300, but communicate directly without going through the base station 200/network 300 (eg, sidelink communication) You may. For example, the vehicles 100b-1 and 100b-2 may perform direct communication (eg, vehicle-to-vehicle (V2V)/vehicle-to-everything (V2X) communication). Also, the IoT device (eg, a sensor) may communicate directly with another IoT device (eg, a sensor) or other wireless devices 100a to 100f.

Wireless communications/ connections 150a , 150b , 150c may be established between the wireless devices 100a - 100f and/or between the wireless devices 100a - 100f and the base station 200 and/or between the base station 200 . Here, the wireless communication/connection includes uplink/downlink communication 150a, sidelink communication 150b (or device-to-device (D2D) communication), inter-base station communication 150c (eg, relay, integrated access and backhaul), etc.), and may be established through various RATs (eg, 5G NR). The wireless devices 100a to 100f and the base station 200 may transmit/receive wireless signals to/from each other through the wireless communication/ connections 150a, 150b, and 150c. For example, the wireless communication/ connection 150a , 150b , 150c may transmit/receive signals through various physical channels. To this end, based on the various proposals of the present specification, various configuration information setting processes for transmission/reception of radio signals, various signal processing processes (eg, channel encoding/decoding, modulation/demodulation, resource mapping/demapping, etc.), and at least a part of a resource allocation process and the like may be performed.

AI refers to a field that studies artificial intelligence or methodologies that can make it, and machine learning (machine learning) refers to a field that defines various problems dealt with in the field of artificial intelligence and studies methodologies to solve them. . Machine learning is also defined as an algorithm that improves the performance of a certain task through constant experience.

A robot can mean a machine that automatically handles or operates a task given by its own capabilities. In particular, a robot having a function of recognizing an environment and performing an operation by self-judgment may be referred to as an intelligent robot. Robots can be classified into industrial, medical, home, military, etc. depending on the purpose or field of use. The robot may be provided with a driving unit including an actuator or a motor to perform various physical operations such as moving the robot joints. In addition, the movable robot includes a wheel, a brake, a propeller, and the like in the driving unit, and may travel on the ground or fly in the air through the driving unit.

Autonomous driving refers to a technology that drives itself, and an autonomous driving vehicle refers to a vehicle that runs without or with minimal user manipulation. For example, autonomous driving includes technology that maintains a driving lane, technology that automatically adjusts speed such as adaptive cruise control, technology that automatically drives along a set route, and technology that automatically sets a route when a destination is set. Technology, etc. may all be included. The vehicle includes a vehicle having only an internal combustion engine, a hybrid vehicle having both an internal combustion engine and an electric motor, and an electric vehicle having only an electric motor, and may include not only automobiles, but also trains, motorcycles, and the like. Autonomous vehicles can be viewed as robots with autonomous driving capabilities.

Augmented reality refers to VR, AR, and MR. VR technology provides only CG images of objects or backgrounds in the real world, AR technology provides virtual CG images on top of images of real objects, and MR technology provides CG by mixing and combining virtual objects with the real world. it is technology MR technology is similar to AR technology in that it shows both real and virtual objects. However, there is a difference in that in AR technology, a virtual object is used in a form that complements a real object, whereas in MR technology, a virtual object and a real object are used with equal characteristics.

NR supports multiple numerology or subcarrier spacing (SCS) to support various 5G services. For example, when SCS is 15 kHz, it supports wide area in traditional cellular band, and when SCS is 30 kHz/60 kHz, dense-urban, lower latency and wider area are supported. It supports a wider carrier bandwidth, and when the SCS is 60 kHz or higher, it supports a bandwidth greater than 24.25 GHz to overcome the phase noise.

The NR frequency band may be defined as two types of frequency ranges (FR1, FR2). The numerical value of the frequency range may change. For example, the frequency ranges of the two types (FR1, FR2) may be as shown in Table 1 below. For convenience of explanation, among the frequency ranges used in the NR system, FR1 may mean "sub 6GHz range", FR2 may mean "above 6GHz range", and may be referred to as millimeter wave (mmW). there is.

Frequency range definition	frequency range	Subcarrier Spacing
FR1	450MHz - 6000MHz	15, 30, 60 kHz
FR2	24250MHz - 52600MHz	60, 120, 240 kHz

As mentioned above, the numerical value of the frequency range of the NR system can be changed. For example, FR1 may include a band of 410 MHz to 7125 MHz as shown in Table 2 below. That is, FR1 may include a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, a frequency band of 6GHz (or 5850, 5900, 5925 MHz, etc.) or higher included in FR1 may include an unlicensed band. The unlicensed band can be used for a variety of purposes, for example, for communication for vehicles (eg, autonomous driving).

Frequency range definition	frequency range	Subcarrier Spacing
FR1	410MHz - 7125MHz	15, 30, 60 kHz
FR2	24250MHz - 52600MHz	60, 120, 240 kHz

Here, the wireless communication technology implemented in the wireless device of the present specification may include narrowband IoT (NB-IoT, narrowband IoT) for low-power communication as well as LTE, NR, and 6G. For example, the NB-IoT technology may be an example of a low power wide area network (LPWAN) technology, and may be implemented in standards such as LTE Cat NB1 and/or LTE Cat NB2, and is not limited to the above-mentioned name. . Additionally or alternatively, the wireless communication technology implemented in the wireless device of the present specification may perform communication based on LTE-M technology. For example, the LTE-M technology may be an example of an LPWAN technology, and may be called by various names such as enhanced MTC (eMTC). For example, LTE-M technology is 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-bandwidth limited), 5) LTE-MTC, 6) LTE MTC , and/or 7) may be implemented in at least one of various standards such as LTE M, and is not limited to the above-described name. Additionally or alternatively, the wireless communication technology implemented in the wireless device of the present specification may include at least one of ZigBee, Bluetooth, and/or LPWAN in consideration of low-power communication, and limited to the above-mentioned names it is not For example, the ZigBee technology can create PAN (personal area networks) related to small/low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.

2 shows an example of a wireless device to which the implementation of the present specification is applied.

Referring to FIG. 2 , the first wireless device 100 and the second wireless device 200 may transmit/receive radio signals to/from an external device through various RATs (eg, LTE and NR).

In FIG. 2, {first wireless device 100 and second wireless device 200} are {radio devices 100a to 100f and base station 200} in FIG. 1, {wireless device 100a to 100f ) and wireless devices 100a to 100f} and/or {base station 200 and base station 200}.

The first wireless device 100 may include at least one transceiver, such as a transceiver 106 , at least one processing chip, such as a processing chip 101 , and/or one or more antennas 108 .

Processing chip 101 may include at least one processor, such as processor 102 , and at least one memory, such as memory 104 . In FIG. 2 , the memory 104 is exemplarily shown to be included in the processing chip 101 . Additionally and/or alternatively, the memory 104 may be located external to the processing chip 101 .

The processor 102 may control the memory 104 and/or the transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. For example, the processor 102 may process information in the memory 104 to generate first information/signal, and transmit a wireless signal including the first information/signal through the transceiver 106 . The processor 102 may receive a radio signal including the second information/signal through the transceiver 106 , and store information obtained by processing the second information/signal in the memory 104 .

Memory 104 may be operatively coupled to processor 102 . Memory 104 may store various types of information and/or instructions. The memory 104 may store software code 105 that, when executed by the processor 102 , implements instructions that perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. For example, the software code 105 may implement instructions that, when executed by the processor 102 , perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. For example, software code 105 may control processor 102 to perform one or more protocols. For example, software code 105 may control processor 102 to perform one or more air interface protocol layers.

Here, the processor 102 and memory 104 may be part of a communication modem/circuit/chip designed to implement a RAT (eg, LTE or NR). The transceiver 106 may be coupled to the processor 102 to transmit and/or receive wireless signals via one or more antennas 108 . Each transceiver 106 may include a transmitter and/or a receiver. The transceiver 106 may be used interchangeably with a radio frequency (RF) unit. In this specification, the first wireless device 100 may represent a communication modem/circuit/chip.

The second wireless device 200 may include at least one transceiver, such as a transceiver 206 , at least one processing chip, such as a processing chip 201 , and/or one or more antennas 208 .

The processing chip 201 may include at least one processor, such as a processor 202 , and at least one memory, such as a memory 204 . In FIG. 2 , the memory 204 is exemplarily shown included in the processing chip 201 . Additionally and/or alternatively, the memory 204 may be located external to the processing chip 201 .

The processor 202 may control the memory 204 and/or the transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. For example, the processor 202 may process the information in the memory 204 to generate third information/signal, and transmit a wireless signal including the third information/signal through the transceiver 206 . The processor 202 may receive a radio signal including the fourth information/signal through the transceiver 206 , and store information obtained by processing the fourth information/signal in the memory 204 .

Memory 204 may be operatively coupled to processor 202 . Memory 204 may store various types of information and/or instructions. The memory 204 may store software code 205 that, when executed by the processor 202 , implements instructions that perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. For example, software code 205 may implement instructions that, when executed by processor 202 , perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. For example, software code 205 may control processor 202 to perform one or more protocols. For example, software code 205 may control processor 202 to perform one or more air interface protocol layers.

Here, the processor 202 and the memory 204 may be part of a communication modem/circuit/chip designed to implement a RAT (eg, LTE or NR). The transceiver 206 may be coupled to the processor 202 to transmit and/or receive wireless signals via one or more antennas 208 . Each transceiver 206 may include a transmitter and/or a receiver. The transceiver 206 may be used interchangeably with the RF unit. In this specification, the second wireless device 200 may represent a communication modem/circuit/chip.

Hereinafter, hardware elements of the wireless devices 100 and 200 will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors 102 , 202 . For example, the one or more processors 102, 202 may include one or more layers (eg, a physical (PHY) layer, a media access control (MAC) layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, A functional layer such as a radio resource control (RRC) layer and a service data adaptation protocol (SDAP) layer) may be implemented. The one or more processors 102, 202 generate one or more protocol data units (PDUs) and/or one or more service data units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein. can do. One or more processors 102 , 202 may generate messages, control information, data, or information in accordance with the descriptions, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein. The one or more processors 102, 202 may configure a signal including a PDU, SDU, message, control information, data or information (eg, a baseband signal) and provide it to one or more transceivers (106, 206). One or more processors 102 , 202 may receive signals (eg, baseband signals) from one or more transceivers 106 , 206 , and may be described, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein. PDU, SDU, message, control information, data or information may be acquired according to

One or more processors 102 , 202 may be referred to as controllers, microcontrollers, microprocessors, and/or microcomputers. One or more processors 102 , 202 may be implemented by hardware, firmware, software, and/or a combination thereof. For example, one or more application specific integrated circuits (ASICs), one or more digital signal processors (DSPs), one or more digital signal processing devices (DSPDs), one or more programmable logic devices (PLDs), and/or one or more field programmable gates (FPGAs) arrays) may be included in one or more processors 102 , 202 . The descriptions, functions, procedures, proposals, methods, and/or flow diagrams disclosed herein may be implemented using firmware and/or software, and the firmware and/or software may be implemented to include modules, procedures, and functions. . Firmware or software configured to perform the descriptions, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein may be included in one or more processors 102 , 202 , or stored in one or more memories 104 , 204 to provide one It may be driven by the above processors 102 and 202 . The descriptions, functions, procedures, proposals, methods, and/or flow diagrams disclosed herein may be implemented using firmware or software in the form of code, instructions, and/or sets of instructions.

One or more memories 104 , 204 may be coupled with one or more processors 102 , 202 , and may store various forms of data, signals, messages, information, programs, code, instructions, and/or instructions. The one or more memories 104 and 204 may include read-only memory (ROM), random access memory (RAM), erasable programmable ROM (EPROM), flash memory, hard drives, registers, cache memory, computer readable storage media and/or these may be composed of a combination of One or more memories 104 , 204 may be located inside and/or external to one or more processors 102 , 202 . Additionally, one or more memories 104 , 204 may be coupled to one or more processors 102 , 202 through various technologies, such as wired or wireless connections.

The one or more transceivers 106, 206 may transmit user data, control information, wireless signals/channels, etc. referred to in the descriptions, functions, procedures, suggestions, methods, and/or flow charts disclosed herein to one or more other devices. . The one or more transceivers 106, 206 may receive user data, control information, radio signals/channels, etc. referred to in the descriptions, functions, procedures, suggestions, methods, and/or flow charts disclosed herein, from one or more other devices. there is. For example, one or more transceivers 106 , 206 may be coupled to one or more processors 102 , 202 and may transmit and receive wireless signals. For example, one or more processors 102 , 202 may control one or more transceivers 106 , 206 to transmit user data, control information, wireless signals, etc. to one or more other devices. In addition, one or more processors 102 , 202 may control one or more transceivers 106 , 206 to receive user data, control information, wireless signals, etc. from one or more other devices.

One or more transceivers 106 , 206 may be coupled to one or more antennas 108 , 208 . One or more transceivers 106, 206 may be connected via one or more antennas 108, 208 to user data, control information, radio signals/channels referred to in the descriptions, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein. It may be set to transmit and receive, etc. Herein, the one or more antennas 108 and 208 may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports).

One or more transceivers (106, 206) are configured to process received user data, control information, radio signals/channels, etc., using one or more processors (102, 202), such as received user data, control information, radio signals/channels, and the like. etc. can be converted from an RF band signal to a baseband signal. One or more transceivers 106 , 206 may convert user data, control information, radio signals/channels, etc. processed using one or more processors 102 , 202 from baseband signals to RF band signals. To this end, one or more transceivers 106 , 206 may include (analog) oscillators and/or filters. For example, one or more transceivers 106, 206 up-convert OFDM baseband signals to OFDM signals via (analog) oscillators and/or filters under the control of one or more processors 102, 202; , an up-converted OFDM signal may be transmitted at a carrier frequency. One or more transceivers 106, 206 receive the OFDM signal at the carrier frequency and down-convert the OFDM signal to an OFDM baseband signal through an (analog) oscillator and/or filter under the control of one or more processors 102, 202. can be down-converted.

In the implementation of the present specification, the UE may operate as a transmitting device in an uplink (UL) and a receiving device in a downlink (DL). In the implementation of the present specification, the base station may operate as a receiving device in the UL and a transmitting device in the DL. Hereinafter, for technical convenience, it is mainly assumed that the first wireless device 100 operates as a UE and the second wireless device 200 operates as a base station. For example, a processor 102 coupled to, mounted on, or shipped with the first wireless device 100 may perform UE operations in accordance with implementations of the present disclosure or may configure the transceiver 106 to perform UE operations in accordance with implementations of the present disclosure. can be configured to control. A processor 202 coupled to, mounted on, or shipped to the second wireless device 200 is configured to perform a base station operation according to an implementation of the present specification or to control the transceiver 206 to perform a base station operation according to an implementation of the present specification. can be

In this specification, a base station may be referred to as a Node B (Node B), an eNode B (eNB), or a gNB.

3 shows an example of a wireless device to which the implementation of the present specification is applied.

The wireless device may be implemented in various forms according to usage examples/services (refer to FIG. 1 ).

Referring to FIG. 3 , the wireless devices 100 and 200 may correspond to the wireless devices 100 and 200 of FIG. 2 , and may be configured by various components, devices/parts and/or modules. For example, each wireless device 100 , 200 may include a communication device 110 , a control device 120 , a memory device 130 , and an additional component 140 . The communication device 110 may include communication circuitry 112 and a transceiver 114 . For example, communication circuitry 112 may include one or more processors 102 , 202 of FIG. 2 and/or one or more memories 104 , 204 of FIG. 2 . For example, transceiver 114 may include one or more transceivers 106 , 206 of FIG. 2 and/or one or more antennas 108 , 208 of FIG. 2 . The control device 120 is electrically connected to the communication device 110 , the memory device 130 , and the additional component 140 , and controls the overall operation of each wireless device 100 , 200 . For example, the control device 120 may control the electrical/mechanical operation of each of the wireless devices 100 and 200 based on the program/code/command/information stored in the memory device 130 . The control device 120 transmits information stored in the memory device 130 to the outside (eg, other communication devices) via the communication device 110 through a wireless/wired interface, or a communication device ( 110), information received from an external (eg, other communication device) may be stored in the memory device 130 .

The additional component 140 may be variously configured according to the type of the wireless device 100 or 200 . For example, the additional components 140 may include at least one of a power unit/battery, input/output (I/O) devices (eg, audio I/O ports, video I/O ports), drive units, and computing devices. can Wireless devices 100 and 200 include, but are not limited to, robots (100a in FIG. 1 ), vehicles ( 100b-1 and 100b-2 in FIG. 1 ), XR devices ( 100c in FIG. 1 ), and portable devices ( FIG. 1 ). 100d), home appliances (100e in FIG. 1), IoT devices (100f in FIG. 1), digital broadcast terminals, hologram devices, public safety devices, MTC devices, medical devices, fintech devices (or financial devices), security devices , a climate/environment device, an AI server/device (400 in FIG. 1 ), a base station (200 in FIG. 1 ), may be implemented in the form of a network node. The wireless devices 100 and 200 may be used in a moving or fixed location according to usage examples/services.

In FIG. 3 , all of the various components, devices/parts and/or modules of the wireless devices 100 and 200 may be connected to each other via a wired interface, or at least some of them may be wirelessly connected via the communication device 110 . For example, in each of the wireless devices 100 and 200 , the control device 120 and the communication device 110 are connected by wire, and the control device 120 and the first device (eg, 130 and 140 ) are communication devices. It may be connected wirelessly through 110 . Each component, device/portion, and/or module within the wireless device 100, 200 may further include one or more elements. For example, the control device 120 may be configured by one or more processor sets. For example, the control device 120 may be configured by a set of a communication control processor, an application processor (AP), an electronic control unit (ECU), a graphic processing device, and a memory control processor. As another example, the memory device 130 may be configured by RAM, DRAM, ROM, flash memory, volatile memory, non-volatile memory, and/or a combination thereof.

4 is a diagram to which the implementation of the present specification is applied. UE's shows an example.

Referring to FIG. 4 , the UE 100 may correspond to the first wireless device 100 of FIG. 2 and/or the wireless device 100 or 200 of FIG. 3 .

UE 100 includes processor 102 , memory 104 , transceiver 106 , one or more antennas 108 , power management module 110 , battery 112 , display 114 , keypad 116 , SIM a (subscriber identification module) card 118 , a speaker 120 , and a microphone 122 .

The processor 102 may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. The processor 102 may be configured to control one or more other components of the UE 100 to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. A layer of air interface protocol may be implemented in the processor 102 . The processor 102 may include an ASIC, other chipset, logic circuitry, and/or data processing device. The processor 102 may be an application processor. The processor 102 may include at least one of a digital signal processor (DSP), a central processing unit (CPU), a graphics processing unit (GPU), and a modem (modulator and demodulator). Examples of the processor 102 include SNAPDRAGON™ series processors made by Qualcomm®, EXYNOSTM series processors made by Samsung®, A series processors made by Apple®, HELIO™ series processors made by MediaTek®, ATOM™ series processors made by Intel®, or a corresponding next-generation processor. It can be found in the processor.

The memory 104 is operatively coupled to the processor 102 , and stores various information for operating the processor 102 . Memory 104 may include ROM, RAM, flash memory, memory cards, storage media, and/or other storage devices. When the implementation is implemented in software, the techniques described herein may be implemented using modules (eg, procedures, functions, etc.) that perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. there is. Modules may be stored in memory 104 and executed by processor 102 . The memory 104 may be implemented within the processor 102 or external to the processor 102 , in which case it may be communicatively coupled with the processor 102 through various methods known in the art.

The transceiver 106 is operatively coupled with the processor 102 and transmits and/or receives wireless signals. The transceiver 106 includes a transmitter and a receiver. The transceiver 106 may include baseband circuitry for processing radio frequency signals. The transceiver 106 controls one or more antennas 108 to transmit and/or receive wireless signals.

The power management module 110 manages power of the processor 102 and/or the transceiver 106 . The battery 112 supplies power to the power management module 110 .

The display 114 outputs the result processed by the processor 102 . Keypad 116 receives input for use by processor 102 . The keypad 116 may be displayed on the display 114 .

SIM card 118 is an integrated circuit for securely storing an international mobile subscriber identity (IMSI) and associated keys, and is used to identify and authenticate a subscriber in a mobile phone device such as a mobile phone or computer. You can also store contact information on many SIM cards.

The speaker 120 outputs sound related results processed by the processor 102 . Microphone 122 receives sound related input for use by processor 102 .

Figure 5a to degree 5c shows an exemplary architecture for the service of next-generation mobile communication. are examples .

Referring to FIG. 5A , the UE is connected to the LTE/LTE-A-based cell and the NR-based cell in a DC (dual connectivity) manner.

The NR-based cell is connected to a core network for the existing 4G mobile communication, that is, an Evolved Packet Core (EPC).

Referring to FIG. 5B , unlike FIG. 5A , an LTE/LTE-A-based cell is connected to a core network for 5G mobile communication, that is, a Next Generation (NG) core network.

A service method based on the architecture shown in FIGS. 5A and 5B is referred to as a non-standalone (NSA).

Referring to FIG. 5C , the UE is connected only to an NR-based cell. A service method based on this architecture is called standalone (SA).

Meanwhile, in the NR, it may be considered that reception from a base station uses a downlink subframe, and transmission to a base station uses an uplink subframe. This method can be applied to paired and unpaired spectra. A pair of spectrum means that two carrier spectrums are included for downlink and uplink operation. For example, in a paired spectrum, one carrier may include a downlink band and an uplink band that are paired with each other.

Degree 6 is in NR Examples of subframe types are shown.

The transmission time interval (TTI) shown in FIG. 6 may be referred to as a subframe or a slot for NR (or new RAT). The subframe (or slot) of FIG. 6 may be used in a TDD system of NR (or new RAT) to minimize data transmission delay. As shown in FIG. 6 , a subframe (or slot) includes 14 symbols, like the current subframe. A symbol at the beginning of a subframe (or slot) may be used for a DL control channel, and a symbol at the end of a subframe (or slot) may be used for a UL control channel. The remaining symbols may be used for DL data transmission or UL data transmission. According to this subframe (or slot) structure, downlink transmission and uplink transmission may be sequentially performed in one subframe (or slot). Accordingly, downlink data may be received within a subframe (or slot), and an uplink acknowledgment (ACK/NACK) may be transmitted within the subframe (or slot). The structure of such a subframe (or slot) may be referred to as a self-contained subframe (or slot). If the structure of such a subframe (or slot) is used, the time it takes to retransmit data in which a reception error occurs is reduced, and thus, there is an advantage in that the final data transmission latency can be minimized. In such a self-contained subframe (or slot) structure, a time gap may be required in a transition process from the transmission mode to the reception mode or from the reception mode to the transmission mode. To this end, some OFDM symbols when switching from DL to UL in the subframe structure may be set as a guard period (GP).

<various of numerology Support>

In the next system, according to the development of wireless communication technology, a plurality of numerology may be provided to the terminal.

The numerology may be defined by a cycle prefix (CP) length and a subcarrier spacing. One cell may provide a plurality of neurology to the terminal. When the index of numerology is expressed as μ, the interval of each subcarrier and the corresponding CP length may be as shown in the table below.

μ	△f=2 μ 15 [kHz]	CP
0	15	Normal
One	30	Normal
2	60	general, extended
3	120	Normal
4	240	Normal

In the case of general CP, when the index of numerology is expressed as μ, the number of OFDM symbols per slot (N ^slot _symb ), the number of slots per frame (N ^{frame, μ} _slot ), and the number of slots per subframe (N ^{subframe, μ} _slot ) ) is shown in the table below.

μ	N slot symbol	N frame, μ slot	N subframe, μ slot
0	14	10	One
One	14	20	2
2	14	40	4
3	14	80	8
4	14	160	16
5	14	320	32

In the case of extended CP, when the index of numerology is expressed as μ, the number of OFDM symbols per slot (N ^slot _symb ), the number of slots per frame (N ^{frame, μ} _slot ), and the number of slots per subframe (N ^{subframe, μ} _slot ) ) is shown in the table below.

μ	N slot symbol	N frame, μ slot	N subframe, μ slot
2	12	40	4

Meanwhile, in next-generation mobile communication, each symbol within a symbol may be used as a downlink or an uplink as shown in the table below. In the table below, uplink is denoted by U, and downlink is denoted by D. In the table below, X represents a symbol that can be flexibly used in uplink or downlink.

format

symbol number within the slot

0

One

2

3

4

5

6

7

8

9

10

11

12

13

0

D

D

D

D

D

D

D

D

D

D

D

D

D

D

One

U

U

U

U

U

U

U

U

U

U

U

U

U

U

2

X

X

X

X

X

X

X

X

X

X

X

X

X

X

3

D

D

D

D

D

D

D

D

D

D

D

D

D

X

4

D

D

D

D

D

D

D

D

D

D

D

D

X

X

5

D

D

D

D

D

D

D

D

D

D

D

X

X

X

6

D

D

D

D

D

D

D

D

D

D

X

X

X

X

7

D

D

D

D

D

D

D

D

D

X

X

X

X

X

8

X

X

X

X

X

X

X

X

X

X

X

X

X

U

9

X

X

X

X

X

X

X

X

X

X

X

X

U

U

10

X

U

U

U

U

U

U

U

U

U

U

U

U

U

11

X

X

U

U

U

U

U

U

U

U

U

U

U

U

12

X

X

X

U

U

U

U

U

U

U

U

U

U

U

13

X

X

X

X

U

U

U

U

U

U

U

U

U

U

14

X

X

X

X

X

U

U

U

U

U

U

U

U

U

15

X

X

X

X

X

X

U

U

U

U

U

U

U

U

16

D

X

X

X

X

X

X

X

X

X

X

X

X

X

17

D

D

X

X

X

X

X

X

X

X

X

X

X

X

18

D

D

D

X

X

X

X

X

X

X

X

X

X

X

19

D

X

X

X

X

X

X

X

X

X

X

X

X

U

20

D

D

X

X

X

X

X

X

X

X

X

X

X

U

21

D

D

D

X

X

X

X

X

X

X

X

X

X

U

22

D

X

X

X

X

X

X

X

X

X

X

X

U

U

23

D

D

X

X

X

X

X

X

X

X

X

X

U

U

24

D

D

D

X

X

X

X

X

X

X

X

X

U

U

25

D

X

X

X

X

X

X

X

X

X

X

U

U

U

26

D

D

X

X

X

X

X

X

X

X

X

U

U

U

27

D

D

D

X

X

X

X

X

X

X

X

U

U

U

28

D

D

D

D

D

D

D

D

D

D

D

D

X

U

29

D

D

D

D

D

D

D

D

D

D

D

X

X

U

30

D

D

D

D

D

D

D

D

D

D

X

X

X

U

31

D

D

D

D

D

D

D

D

D

D

D

X

U

U

32

D

D

D

D

D

D

D

D

D

D

X

X

U

U

33

D

D

D

D

D

D

D

D

D

X

X

X

U

U

34

D

X

U

U

U

U

U

U

U

U

U

U

U

U

35

D

D

X

U

U

U

U

U

U

U

U

U

U

U

36

D

D

D

X

U

U

U

U

U

U

U

U

U

U

37

D

X

X

U

U

U

U

U

U

U

U

U

U

U

38

D

D

X

X

U

U

U

U

U

U

U

U

U

U

39

D

D

D

X

X

U

U

U

U

U

U

U

U

U

40

D

X

X

X

U

U

U

U

U

U

U

U

U

U

41

D

D

X

X

X

U

U

U

U

U

U

U

U

U

42

D

D

D

X

X

X

U

U

U

U

U

U

U

U

43

D

D

D

D

D

D

D

D

D

X

X

X

X

U

44

D

D

D

D

D

D

X

X

X

X

X

X

U

U

45

D

D

D

D

D

D

X

X

U

U

U

U

U

U

46

D

D

D

D

D

D

X

D

D

D

D

D

D

X

47

D

D

D

D

D

X

X

D

D

D

D

D

X

X

48

D

D

X

X

X

X

X

D

D

X

X

X

X

X

49

D

X

X

X

X

X

X

D

X

X

X

X

X

X

50

X

U

U

U

U

U

U

X

U

U

U

U

U

U

51

X

X

U

U

U

U

U

X

X

U

U

U

U

U

52

X

X

X

U

U

U

U

X

X

X

U

U

U

U

53

X

X

X

X

U

U

U

X

X

X

X

U

U

U

54

D

D

D

D

D

X

U

D

D

D

D

D

X

U

55

D

D

X

U

U

U

U

D

D

X

U

U

U

U

56

D

X

U

U

U

U

U

D

X

U

U

U

U

U

57

D

D

D

D

X

X

U

D

D

D

D

X

X

U

58

D

D

X

X

U

U

U

D

D

X

X

U

U

U

59

D

X

X

U

U

U

U

D

X

X

U

U

U

U

60

D

X

X

X

X

X

U

D

X

X

X

X

X

U

61

D

D

X

X

X

X

U

D

D

X

X

X

X

U

< in nr SS block>

SS block (SS / PBCH block: SSB) is information necessary for the terminal to perform initial access in 5G NR, that is, a physical broadcast channel (PBCH) including a master information block (MIB) and a synchronization signal (Synchronization Signal: SS) ( PSS and SSS).

In addition, a plurality of SSBs may be bundled to define an SS burst, and a plurality of SS bursts may be bundled to define an SS burst set. It is assumed that each SSB is beamformed in a specific direction, and several SSBs in the SS burst set are designed to support terminals existing in different directions, respectively.

7 is in nr SSB's exemplified is an example .

Referring to FIG. 7 , the SS burst is transmitted every predetermined period. Accordingly, the terminal receives the SSB, and performs cell detection and measurement.

Meanwhile, in 5G NR, beam sweeping is performed for the SSB. This will be described with reference to FIG. 8 .

8 is in nr beam sweeping exemplified is an example .

The base station transmits each SSB in the SS burst while performing beam sweeping according to time. At this time, several SSBs in the SS burst set are transmitted to support terminals existing in different directions, respectively.

<Problems to be solved in the disclosure of this specification>

There was no interruption due to SRS antenna port switching, and the interruption defined in the existing standard sets the interruption regardless of the slot configuration, resulting in unnecessary interruption. ), and the overall system performance deteriorated.

<Disclosure of the present specification>

The disclosures described below in this specification may be implemented in one or more combinations (eg, a combination including at least one of the contents described below). Each of the drawings shows an embodiment of each disclosure, but the embodiments of the drawings may be implemented in combination with each other.

The description of the method proposed in the disclosure of the present specification may consist of a combination of one or more operations/configurations/steps described below. The following methods described below may be performed or used in combination or complementarily.

In this specification, when performing SRS antenna port switching in a terminal supporting SRS antenna port switching, interruption settings for other bands and carriers are provided. suggest Through this interference setting, it is possible to prevent the terminal from transmitting and receiving signals in the slot where the interference occurs.

The following drawings were created to explain a specific example of the present specification. Since the names of specific devices described in the drawings or the names of specific signals/messages/fields are presented by way of example, the technical features of the present specification are not limited to the specific names used in the following drawings.

Degree 9 is SRS for antenna switching SRS showing examples of settings is an example .

The base station may obtain downlink channel state information (CSI) based on the SRS transmitted by the terminal using a channel reciprocity. To this end, the base station may set the terminal by setting the higher layer parameter usage to 'antennaSwitching' in the SRS resource set. The UE may transmit the SRS using Tx (transmitter) antenna switching. It may take 15 μsec for the UE to switch the Tx antenna. Accordingly, when SRS is transmitted through Tx antenna switching, a guard symbol (GAP) of one symbol may be required between configured SRS symbols.

For example, in the case of a terminal of 1T2R (1Tx and 2 Rx), two SRS resources may be configured to transmit SRS through different Tx antennas. In this case, as shown in FIG. 9, between the 11th thread ball (Tx#1) and the 13th symbol (Tx#2) of the slot n, 1 symbol GAP (SCS=15kHz, 30kHz, 60kHz) or 2 symbol GAP (SCS=15kHz, 30kHz, 60kHz) for Tx antenna switching ( SCS=120kHz) may be set.

When the UE performs Tx antenna switching for SRS transmission, interruption due to switching may occur in other bands and carriers (band/carrier). This is SCS (subcarrier spacing) of the band and carrier (band/carrier) performing SRS Tx antenna switching, partial UL/DL slots, and Tx and Rx structures of the UE, synchronization with other bands and carriers (band/carrier) or Depending on the async (sync/async), the degree of interruption may vary. A setting for interruption can be suggested. When the UE supports per-FR GAP, there may be no interruption between frequency ranges. In the present specification, description is based on TDD and may be applied to TDD and FDD.

One. From EN-DC/NE-DC on LTE interruption that occurs

10 is from EN-DC 1T2R and 2T4R An example of interference in a terminal is shown.

In case of EN-DC (E-UTRA-NR Dual Connectivity)/NE-DC (NR-E-UTRA Dual Connectivity), when SRS antenna switching in NR (new radio) is performed, UL and DL (uplink and downlink ) may cause an interruption.

In the case where NR and LTE are synchronous, for example, when the SCS of NR is 30 kHz, the terminal is 1T2R or 2T4R, and resources for two SRS are configured, as shown in FIG. 10, interruption is in 1 subframe occurs Even when the SCS of NR is 15 kHz, 30 kHz, 60 kHz, and 120 kHz, all the same may be applied.

11 is 1T4R and PUSCH It shows an example of interference in a terminal that does not need switching for this purpose.

If the UE is 1T4R and resources are allocated for 4 SRS transmissions, 2 slots are required for 4 SRS transmissions. 11 , the UE may transmit three SRSs in slot 1 and one SRS may transmit in slot 2. In this case, the UE may switch the Tx antenna for transmitting the SRS of slot 2 in slot 1 in advance. Then, even if GAP for antenna switching is not configured in slot 2, the UE can transmit SRS. Since there is no antenna switching in slot 2, additional interruption may not occur. In this case, there is interruption in only one subframe in the UL/DL of LTE.

12 and 13 are 1T4R and PUSCH It shows an example of interference in a terminal that requires switching for this purpose.

When the Tx antenna for transmitting SRS in slot 2 and the Tx antenna for PUSCH in slot 2 are different from each other in the UE, the UE must perform Tx antenna switching. Antenna switching can cause disturbances. Therefore, as shown in FIGS. 12 and 13 , a Tx antenna switching GAP for transmitting SRS in slot 2 is additionally required. That is, when the Tx antenna for PUSCH is fixed to a specific antenna, interruption occurs in up to two subframes.

Accordingly, the UE may transmit an additional capability (e.g., NotxSwitchforPUSCH) for whether the UE can transmit the PUSCH equally in all Tx antennas for transmitting the SRS to the eNB. Based on this, the base station may determine whether to configure GAP for SRS Tx antenna switching in slot 2.

That is, if the UE can equally transmit the PUSCH through the Tx antenna for transmitting the SRS, the UE may transmit capability information indicating that NotxSwitchforPUSCH is possible to the base station. When the UE transmits the PUSCH in the second slot and transmits the SRS, there is no need for switching. The base station may not consider interruption before SRS transmission in the second slot based on capability information.

On the other hand, if the UE cannot transmit the PUSCH through the Tx antenna that transmits the SRS and has to perform antenna switching, the UE may transmit capability information indicating that NotxSwitchforPUSCH is not possible to the base station. When the UE transmits the PUSCH and transmits the SRS in the second slot, switching may be required. The base station may set the GAP in consideration of interruption due to switching before the terminal transmits the SRS in the second slot based on the capability information.

14 shows procedures of a terminal and a base station according to the disclosure of the present specification.

The base station may transmit a UE Capability Inquiry to the UE.

The terminal may transmit its own capability information (ex. NotxSwitchforPUSCH) to the base station.

The base station may transmit the GAP configuration for SRS Tx antenna switching to the terminal based on the capability information received from the terminal.

The capability information may be NotxSwitchforPUSCH. NotxSwitchforPUSCH may be configured as shown in Table 7 or Table 8.

srs-PUSCHTxSwitch
NotxSwitchforPUSCH	ENUMERATED {supported}	OPTIONAL

When NR and LTE are asynchronous, since a slot boundary may vary up to 500 usec, LTE UL/DL interruption due to NR SRS antenna switching may occur for up to 2 subframes. Therefore, the interference (interruption) occurring in LTE due to NR SRS antenna switching may be defined as shown in Tables 9 and 10.

E-UTRA	NR SCS [kHz]
	Sync						Async
	1T2R/2T4R			1T4R			1T2R/2T4R			1T4R
	15	30	60	15	30	60	15	30	60	15	30	60
interruption length [subframe]	One	One	One	One	One	One	2	2	2	2	2	2

E-UTRA	NR SCS [kHz]
	Sync						Async
	1T2R/2T4R			1T4R			1T2R/2T4R			1T4R
	15	30	60	15	30	60	15	30	60	15	30	60
interruption length [subframe]	One	One	One	2	2	2	2	2	2	2	2	2

Table 9 and Table 10 show how many subframes the interruption according to the NR SCS appears.

One. EN-DC/NE-DC/ NR -CA/ NR - at DC NR PSCell or SCell interruption that occurs

15 is NR PSCell or from Scell 1T2R and 2T4R An example of interference in a terminal is shown.

In case of EN-DC/NE-DC/NR-CA/NR-DC, interruption may occur in UL/DL of NR PSCell or NR SCell due to SRS antenna switching in NR.

When the NR PCell and the NR SCell are synchronous and full UL slots, when the SCS is 30 kHz, the UE is 1T2R or 2T4R, and resources are configured for two SRS transmissions, as shown in FIG. 15, 1 slot interference for all SCSs of the PSCell ( 1 slot interruption) may occur. If a Tx antenna switching GAP is required to transmit the first SRS in a band and a carrier (band/carrier) having a 30 kHz SCS, interruption may occur in 2 slots of the 120 kHz SCS PSCell or SCell.

16 is 1T4R and PUSCH It shows an example of interference in a terminal that does not need switching for this purpose.

When the UE is 1T4R and resources for 4 SRS transmission are configured, the slot in which the interruption occurs may vary depending on whether an additional Tx antenna switching GAP is required for the SRS transmitted by the UE in the second slot. 16 shows interruption in a terminal having NotxSwitchforPUSCH capability. When the UE performs SRS Tx antenna switching at 30 kHz SCS, 1-slot interruption may occur for 15 kHz, 30 kHz, and 60 kHz SCS, and 2-slot interruption may occur for 120 kHz.

17 is NR PSCell or from Scell 1T2R and 2T4R An example of interference in a terminal is shown.

When the NR PCell and the NR SCell are synchronized and have a partial DL/UL slot, the SCS is 30 kHz, the UE is 1T2R or 2T4R, and resources are configured for two SRS transmissions, as shown in FIG. 17 PSCell 1 slot interruption may occur for all SCSs of If a Tx antenna switching GAP is required to transmit the first SRS in a band or carrier (band/carrier) with 30 kHz SCS, interruption may occur in 2 slots of 120 kHz SCS PSCell or SCell. However, in this case, interruption does not occur in all symbols of the slot, but only in symbols corresponding to the UL of the slot. Therefore, if interruption is set for all symbols of the slot, overall throughput is lowered. Therefore, interruption should be set only for UL symbols.

When the NR PCell and the NR SCell are synchronized and are a full UL slot or a partial DL/UL slot, two slots are required for the UE to transmit 4 SRS 1T4R. Whether or not to additionally 1 slot interruption may be defined according to whether NotxSwitchforPUSCH is present. When the interruption slot is a partial DL/UL slot, interruption may be configured in the UL symbol.

18 shows in asynchronous 1T4R and PUSCH It shows an example of interference in a terminal that does not need switching for this purpose.

When the NR PCell and the NR SCell are asynchronous, the slot boundary may be different up to 500 usec. Accordingly, slot-level interruption may be configured regardless of a full UL slot or a partial DL/UL slot. For example, if the SCS is 30 kHz, the terminal is 1T4R, and resources are configured for 4 SRS transmission, as shown in FIG. 18 , interruption occurs in two slots for 15 kHz, 30 kHz, and 60 kHz SCS of the PSCell or SCell and 120 kHz For SCS, interruption may occur in three slots.

Therefore, in one SRS resource set (SRS resource set), it can be defined as Table 11, Table 12, Table 13 and Table 14 for the interruption occurring in the NR PSCell or the NR SCell due to the NR SRS antenna switching.

Table 11 shows an interruption length when antenna switching (NotxSwitchforPUSCH) for PUSCH transmission is not required in a full UL slot.

For example, when the NR PCell and the NR SCell are synchronized and the UE is 1T4R, if the SCS transmits SRS at 30 kHz, interruption may occur in two slots in the cell having the SCS at 120 kHz. Indicates an interruption length when antenna switching (NotxSwitchforPUSCH) is required for PUSCH transmission in a UL slot (full UL slot).

Table 13 shows an interruption length when antenna switching (NotxSwitchforPUSCH) for PUSCH transmission is not required in a partial DL/UL slot.

Table 14 shows the interruption length when antenna switching (NotxSwitchforPUSCH) for PUSCH transmission is required in a partial DL/UL slot.

3. resourceType interruption

19 shows ' aperiodic 'sign resourceType About SRS - ResourceSet star SRS An example of resource configuration is shown.

In FIG. 19, (a) shows a case of a 1T2R terminal and (b) shows a case of a 1T4R terminal.

Based on the RAN1 standard, the SRS resource configuration for SRS antenna switching depends on the 'resourceType' of the SRS-ResourceSet. 19 , when 'resourceType' is 'aperiodic', two SRS resources may be configured in the same slot for 1T2R or 2T4R. In case of 1T4R, four SRS resources in two SRS-ResoruceSets may be configured in two different slots.

Interruption time may be an antenna port switching time (guard period, GAP) and SRS transmission time when 'resourceType' is 'aperiodic'. That is, an interrupt may occur for each SRS-ResourceSet.

20 is 1T2R 'periodicity' in the terminal 'sign resourceType About SRS - by ResourceSet SRS An example of resource configuration is shown.

When 'resourceType' for SRS-ResourceSet is 'periodic' or 'semi-persistent', each SRS resource may be configured with different SRS-PeriodicityAndOffsets. Therefore, each SRS resource may be transmitted in a different slot according to an Offset value as shown in FIG. 20 . And there is no restriction on non-contiguous slot configuration for SRS resources.

The interruption time may be an antenna switching time when 'resourceType' is 'periodic' or 'semi-persistent'. That is, interruption may occur for each SRS resource.

4. Interruption due to antenna switching

21 is SRS An example of antenna switching before and after transmission is shown.

In order to define the interruption time, RAN4 should clarify whether the switching period before and after the SRS transmission symbol should be considered. A guard period (GAP) symbol for a switching period is defined in the RAN1 standard. However, a guard period (GAP) symbol is set when SRS resources of a set are transmitted in the same slot, and a guard period may be set between SRS resources of a set. Therefore, there is no GAP (guard period) symbol before the first SRS transmission and the last SRS transmission for antenna switching. When the Tx antenna needs to be switched again after SRS transmission as shown in FIG. 21, a switch back time should be considered when defining an interruption requirement. Otherwise, only the switching time before SRS transmission (GAP) can be considered when defining the interruption requirement.

5. Interruption according to UL-DL configuration

22 shows an interruption in a UL-DL slot.

23 shows an interruption in a UL-UL slot.

22 shows interruption in a victim cell in a UL-DL slot configuration. In the UL-DL slot configuration, since the Tx-Rx switching time between the UL and DL slots is guaranteed as shown in FIG. 22, the switching time after SRS transmission does not affect the interruption of the victim cell in slot n+1. does not However, in the UL-UL slot configuration, when the Tx antenna is switched again after SRS transmission in the synchronous case considering the MTTD as shown in FIG. 23, due to the switching time again, interference in slots n and n+1 for the victim cell ( interruption) may occur. When the Tx antenna does not need to switch again after SRS transmission, the interruption may be the same as the UL-DL slot configuration.

Therefore, in the configuration of the UL-UL slot, interruption should be considered in the second UL slot.

24 is flexible symbol of Indicates an interruption in the case.

In the case of a flexible symbol, interruption may occur in a victim cell in a UL symbol of slot n. Therefore, when the SRS resource for antenna switching consists of flexible symbols within a slot, a symbol level interrupt should be defined in order to avoid unnecessary interrupts for DL symbols. Therefore, when switching is performed in the flexible symbol, interruption may be considered for the UL. On the other hand, in DL, the UE may receive the DL signal without considering interruption.

6. symbol Interruption by level or slot

As described above, the interruption requirement may vary depending on the configuration of the UL-DL or UL-DL slot, and in the case of a flexible symbol in the slot, interruption may occur in the UL symbol. Accordingly, in the case of a full UL symbol within a slot, slot level interruption may be considered, and symbol level interruption may be considered for a flexible symbol within a slot.

An interruption requirement may be defined based on a slot level for a full UL symbol within a slot and a symbol level for a flexible symbol within a slot.

7. Components within interruption time in FR1

The interruption requirements are shown in Table 15 and Table 16. Consider the time for switching again after SRS transmission. If the switching time after SRS transmission is not considered, the interruption slot for configuring the UL-UL slot is 'interruption length-1' in Tables 15 and 16.

If the UE supports the 'NotxSwitchforPUSCH' function for synchronization, the interruption slot for configuring the UL-UL slot is 'Case1 interruption length-1' in Tables 15 and 16. In case the UE does not support the 'NotxSwitchforPUSCH' function, the interrupt slot for UL-UL slot configuration in the synchronous case is Case 1 of Table 15 below.

When SRS antenna switching is performed in a serving cell, the UE may be allowed to interrupt other active serving cells as defined in Table 15. The network (gNB) may exclude scheduling for the UE for an interruption slot. And the UL/DL channel is scheduled to the UE by the network (gNB), and the UE is not expected to transmit or receive a channel (eg, PDSCH, PUSCH, etc.) for an interruption slot.

Table 15 is not based on 'aperiodic', 'semi-persistent' under 'periodic'.

Victim cell SCS [kHz]	Interruption length [slot]
	Aggressor cell SCS [kHz]
	15		30		60		120
	Case 1	Case 2	Case 1	Case 2	Case 1	Case 2	Case 1	Case 2
15	2	One	2	One	2	One	One	One
30	2	One	2	One	2	One	One	One
60	2	One	2	One	2	One	One	One
120	2	One	2	One	2	One	One	One
Case 1: UL-UL slot configuration for synchronous and asynchronous cases Case 2: UL-DL slot configuration for asynchronous case Note 1: When the SRS resource is configured as a flexible symbol in a synchronous slot, an interruption requirement may be applied to the UL symbol.

25 shows a procedure of a terminal according to the disclosure of the present specification.

1. It is possible to receive a request for capability (capability) of the UE from the base station.

2. It can transmit its own capability (capability) information to the base station.

3. It is possible to receive configuration information for an interrupted slot from the base station.

4. A first SRS (Sounding Reference Signal) may be transmitted to the base station through the first antenna.

5. Antenna switching can be performed.

6. A second SRS may be transmitted to the base station through a second antenna.

7. Based on the configuration information for the interference slot, transmission and reception of a signal may be skipped in the interference slot.

The first SRS transmission, the second SRS transmission, and the antenna switching may be performed in the first cell.

The antenna switching may be switching between the first antenna and the second antenna.

The interruption slot may be a slot in which interruption due to the antenna switching occurs in the second cell.

The interference slot may be based on i) the capability information, ii) slot configuration, iii) subcarrier spacing (SCS) of the first cell, and iv) SCS of the second cell.

The capability information may include NotxSwitchforPUSCH information, and the NotxSwitchforPUSCH information may be based on whether the UE can transmit an uplink signal through the first antenna and the second antenna.

The first SRS and the second SRS may be transmitted through a flexible symbol.

The antenna switching is performed between the first slot and the second slot,

The slot configuration may be based on i) whether the first slot is an uplink slot or a downlink slot, and ii) whether the second slot is an uplink slot or a downlink slot.

26 shows a procedure of a base station according to the disclosure of the present specification.

1. A user equipment (UE) may transmit a capability request of the UE.

2. Receive capability information of the UE from the UE.

3. It is possible to transmit configuration information for an interrupted slot to the UE.

4. A first SRS (Sounding Reference Signal) may be received from the UE through the first antenna of the UE.

5. A second SRS may be received from the UE through a second antenna of the UE.

6. Signal transmission/reception may be skipped in the interference slot.

The first SRS transmission, the second SRS transmission, and the antenna switching may be performed in the first cell.

The antenna switching may be switching between the first antenna and the second antenna.

The interruption slot may be based on an interruption occurring in the second cell due to the antenna switching.

The interference slot may be based on i) the capability information, ii) slot configuration, iii) subcarrier spacing (SCS) of the first cell, and iv) SCS of the second cell.

Hereinafter, an apparatus for providing a multicast service in a wireless communication system according to some embodiments of the present invention will be described.

For example, a base station may include a processor, a transceiver, and memory.

For example, a processor may be configured to be operatively coupled with a memory and processor.

the transceiver receives a capability request of the UE from the base station; the transceiver transmits its capability information to the base station; the transceiver receives configuration information for an interrupted slot from the base station; the transceiver transmits a first SRS (Sounding Reference Signal) to the base station through a first antenna; the processor performs antenna switching; the transceiver transmits a second SRS to the base station through a second antenna; and the processor skips transmission and reception of signals in the interference slot; The first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell, the antenna switching is switching between the first antenna and the second antenna, and the interference slot is the second antenna switching. Based on interruption occurring in the cell, the interruption slot is based on i) the capability information, ii) slot configuration, iii) the subcarrier spacing (SCS) of the first cell, and iv) the SCS of the second cell can do.

Hereinafter, a processor for providing a multicast service in a wireless communication system according to some embodiments of the present invention will be described.

The processor comprising: receiving a request for capability (capability) of the UE from the base station; transmitting capability information of the UE to the base station; receiving configuration information for an interrupted slot from the base station; transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna; performing antenna switching; transmitting a second SRS to the base station through a second antenna; and skipping signal transmission/reception in the interference slot. The first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell, the antenna switching is switching between the first antenna and the second antenna, and the interference slot is Based on the interruption occurring in the second cell by the antenna switching, the interference slot is i) the capability information, ii) slot configuration, iii) the subcarrier spacing (SCS) of the first cell, and iv) the first cell It may be based on the SCS of 2 cells.

Hereinafter, a non-volatile computer-readable medium storing one or more instructions for providing a multicast service in a wireless communication system according to some embodiments of the present invention will be described.

According to some embodiments of the present disclosure, the technical features of the present disclosure may be directly implemented as hardware, software executed by a processor, or a combination of the two. For example, in wireless communication, a method performed by a wireless device may be implemented in hardware, software, firmware, or any combination thereof. For example, the software may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or other storage medium.

Some examples of a storage medium are coupled to the processor such that the processor can read information from the storage medium. Alternatively, the storage medium may be integrated into the processor. The processor and storage medium may reside in the ASIC. For another example, a processor and a storage medium may reside as separate components.

Computer-readable media can include tangible and non-volatile computer-readable storage media.

For example, non-volatile computer-readable media may include random access memory (RAM), such as synchronization dynamic random access memory (SDRAM), read-only memory (ROM), or non-volatile random access memory (NVRAM). Read-only memory (EEPROM), flash memory, magnetic or optical data storage media, or other media that can be used to store instructions or data structures. Non-volatile computer-readable media may also include combinations of the above.

In addition, the methods described herein may be realized at least in part by computer readable communication media that carry or carry code in the form of instructions or data structures and which can be accessed, read, and/or executed by a computer.

According to some embodiments of the present disclosure, a non-transitory computer-readable medium has one or more instructions stored thereon. The stored one or more instructions may be executed by a processor of the base station.

The stored one or more instructions cause the processors to receive a capability request of the UE from a base station; transmitting capability information of the UE to the base station; receiving configuration information for an interrupted slot from the base station; transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna; performing antenna switching; transmitting a second SRS to the base station through a second antenna; and skipping signal transmission/reception in the interference slot. wherein the first SRS transmission, the second SRS transmission and the antenna switching are performed in a first cell, the antenna switching is switching between the first antenna and the second antenna, and the interference slot is based on the interruption occurring in the second cell by the antenna switching, and the interference slot is i) the capability information, ii) slot configuration, iii) the subcarrier spacing (SCS) of the first cell, and iv) the It may be based on the SCS of the second cell.

The specification may have various effects.

For example, through the procedure disclosed in this specification, by setting the interruption time (transmission/reception blocking time of the terminal) in consideration of the characteristics of the slot setting for interruption due to SRS transmission antenna switching, it is possible to efficiently transmit/receive with the network let there be

Effects that can be obtained through specific examples of the present specification are not limited to the effects listed above. For example, various technical effects that a person having ordinary skill in the related art can understand or derive from this specification may exist. Accordingly, the specific effects of the present specification are not limited to those explicitly described herein, and may include various effects that can be understood or derived from the technical characteristics of the present specification.

The claims described herein may be combined in various ways. For example, the technical features of the method claims of the present specification may be combined and implemented as an apparatus, and the technical features of the apparatus claims of the present specification may be combined and implemented as a method. In addition, the technical features of the method claim of the present specification and the technical features of the apparatus claim may be combined to be implemented as an apparatus, and the technical features of the method claim of the present specification and the technical features of the apparatus claim may be combined and implemented as a method. Other implementations are within the scope of the following claims.

Claims (18)

1. A method for UE (User Equipment) to perform communication, comprising:

   Receiving a capability (capability) request of the UE from the base station;

   transmitting capability information of the UE to the base station;

   receiving configuration information for an interrupted slot from the base station;

   transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna;

   performing antenna switching;

   transmitting a second SRS to the base station through a second antenna; and

   skipping transmission/reception of a signal through a second cell in the interference slot based on the configuration information on the interference slot;

   The first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell,

   the antenna switching is switching between the first antenna and the second antenna;

   The interference slot is a slot in which interruption due to the antenna switching occurs in the second cell,

   The interference slot is based on i) the capability information, ii) slot configuration, iii) the subcarrier spacing (SCS) of the first cell, and iv) the SCS of the second cell.
2. According to claim 1,

   The capability information includes NotxSwitchforPUSCH information,

   The NotxSwitchforPUSCH information is a method based on whether the UE can transmit an uplink signal through the first antenna and the second antenna.
3. According to claim 1,

   The first SRS and the second SRS are transmitted through a flexible symbol.
4. 4. The method of claim 3,

   The setting information for the interference slot is

   When the first cell and the second cell are synchronous, interruption due to the antenna switching occurs only in symbols for the uplink of the second cell.
5. According to claim 1,

   The antenna switching is performed between the first slot and the second slot,

   The slot configuration is based on i) whether the first slot is an uplink slot or a downlink slot, and ii) whether the second slot is an uplink slot or a downlink slot.
6. According to claim 1,

   The SCS of the first cell is one of 15 kHz, 30 kHz, 60 kHz, and 120 kHz,

   The SCS of the second cell is one of 15 kHz, 30 kHz, 60 kHz, and 120 kHz.
7. 6. The method of claim 5,

   i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 15 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

   Based on i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 15 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

   i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 30 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

   Based on i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 30 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

   i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 60 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is three slots,

   Based on i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 60 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is 3 slots and ,

   i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 120 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is 5 slots;

   Based on i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 120 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is 5 slots. Way.
8. 6. The method of claim 5,

   i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 15 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) Based on that the first cell and the second cell are synchronous, the interference slot is one slot;

   i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 30 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) Based on that the first cell and the second cell are synchronous, the interference slot is one slot;

   i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 60 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

   i) the SCS of the first cell is 15 kHz, ii) the SCS of the second cell is 120 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) and based on the first cell and the second cell being synchronous, the interfering slot is three slots.
9. 6. The method of claim 5,

   i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 15 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

   Based on i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 15 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

   i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 30 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

   Based on i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 30 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

   i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 60 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

   Based on i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 60 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

   i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 120 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is three slots;

   Based on i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 120 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is 3 slots. Way.
10. 6. The method of claim 5,

    i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 15 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) Based on that the first cell and the second cell are synchronous, the interference slot is one slot;

    i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 30 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) Based on that the first cell and the second cell are synchronous, the interference slot is one slot;

    i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 60 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) Based on that the first cell and the second cell are synchronous, the interference slot is one slot;

    i) the SCS of the first cell is 30 kHz, ii) the SCS of the second cell is 120 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) and based on the first cell and the second cell being synchronous, the interfering slot is two slots.
11. 6. The method of claim 5,

    i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 15 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

    Based on i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 15 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

    i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 30 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

    Based on i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 30 Hz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

    i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 60 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

    Based on i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 60 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

    i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 120 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

    Based on i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 120 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots. Way.
12. 6. The method of claim 5,

    i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 15 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) Based on that the first cell and the second cell are synchronous, the interference slot is one slot;

    i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 30 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) Based on that the first cell and the second cell are synchronous, the interference slot is one slot;

    i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 60 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) Based on that the first cell and the second cell are synchronous, the interference slot is one slot;

    i) the SCS of the first cell is 60 kHz, ii) the SCS of the second cell is 120 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) and based on that the first cell and the second cell are synchronous, the interfering slot is one slot.
13. 6. The method of claim 5,

    i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 15 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

    Based on i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 15 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

    i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 30 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

    Based on i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 30 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

    i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 60 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

    Based on i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 60 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots and ,

    i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 120 kHz, iii) the first slot is an uplink slot, iv) the second slot is an uplink slot, v) based on the first cell and the second cell being synchronous, the interfering slot is two slots;

    Based on i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 120 kHz, and iii) the first cell and the second cell are asynchronous, the jamming slot is two slots. Way.
14. 6. The method of claim 5,

    i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 15 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) based on the first cell and the second cell being asynchronous, the interfering slot is one slot;

    i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 30 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) based on the first cell and the second cell being asynchronous, the interfering slot is one slot;

    i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 60 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) based on the first cell and the second cell being asynchronous, the interfering slot is one slot;

    i) the SCS of the first cell is 120 kHz, ii) the SCS of the second cell is 120 kHz, iii) the first slot is an uplink slot, iv) the second slot is a downlink slot, v) and based on the first cell and the second cell being asynchronous, the interfering slot is one slot.
15. A method for a base station to perform communication, comprising:

    transmitting a capability request of the UE to a User Equipment (UE);

    Receiving capability (capability) information of the UE from the UE;

    transmitting configuration information for an interrupted slot to the UE;

    receiving a first SRS (Sounding Reference Signal) from the UE through a first antenna of the UE;

    receiving a second SRS from the UE through a second antenna of the UE; and

    skipping transmission/reception of a signal in the interference slot based on the configuration information on the interference slot;

    The first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell,

    the antenna switching is switching between the first antenna and the second antenna;

    The interruption slot is a slot in which interruption due to the antenna switching occurs in the second cell.

    The interference slot is based on i) the capability information, ii) slot configuration, iii) the subcarrier spacing (SCS) of the first cell, and iv) the SCS of the second cell.
16. A user equipment (UE) performing communication, comprising:

    a transceiver;

    including a processor;

    the transceiver receives a capability request of the UE from the base station;

    the transceiver transmits its capability information to the base station;

    the transceiver receives configuration information for an interrupted slot from the base station;

    the transceiver transmits a first SRS (Sounding Reference Signal) to the base station through a first antenna;

    the processor performs antenna switching;

    the transceiver transmits a second SRS to the base station through a second antenna; and

    the processor skips transmission/reception of a signal through a second cell in the interference slot based on the configuration information for the interference slot;

    The first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell,

    the antenna switching is switching between the first antenna and the second antenna;

    The interruption slot is a slot in which interruption due to the antenna switching occurs in the second cell,

    The interference slot is a UE based on i) the capability information, ii) slot configuration, iii) a subcarrier spacing (SCS) of the first cell, and iv) the SCS of the second cell.
17. An apparatus in mobile communication, comprising:

    at least one processor; and

    at least one memory for storing instructions and operably electrically connectable with the at least one processor;

    The operations performed based on the execution of the instructions by the at least one processor include:

    Receiving a capability (capability) request of the UE from the base station;

    transmitting its capability information to the base station;

    receiving configuration information for an interrupted slot from the base station;

    transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna;

    performing antenna switching;

    transmitting a second SRS to the base station through a second antenna; and

    skipping transmission/reception of a signal through a second cell in the interference slot based on the configuration information on the interference slot;

    The first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell,

    the antenna switching is switching between the first antenna and the second antenna;

    The interruption slot is a slot in which interruption due to the antenna switching occurs in the second cell,

    The interference slot is an apparatus based on i) the capability information, ii) slot configuration, iii) a subcarrier spacing (SCS) of the first cell, and iv) the SCS of the second cell.
18. A non-volatile computer-readable storage medium having recorded thereon instructions, comprising:

    The instructions, when executed by one or more processors, cause the one or more processors to:

    Receiving a capability (capability) request of the UE from the base station;

    transmitting its capability information to the base station;

    receiving configuration information for an interrupted slot from the base station;

    transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna;

    performing antenna switching;

    transmitting a second SRS to the base station through a second antenna; and

    skipping transmission/reception of a signal through the second cell in the interference slot based on the configuration information for the interference slot; and

    The first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell,

    the antenna switching is switching between the first antenna and the second antenna;

    The interruption slot is a slot in which interruption due to the antenna switching occurs in the second cell,

    The interference slot is a non-volatile computer storage medium based on i) the capability information, ii) slot configuration, iii) a subcarrier spacing (SCS) of the first cell, and iv) the SCS of the second cell.

Images