WO2022149942A1

WO2022149942A1 - Communication based on fr2 inter-band ca

Info

Publication number: WO2022149942A1
Application number: PCT/KR2022/000418
Authority: WO
Inventors: Yoonoh Yang; Sangwook Lee; Suhwan Lim; Jinyup HWANG; Jinwoong PARK
Original assignee: Lg Electronics Inc.
Priority date: 2021-01-11
Filing date: 2022-01-11
Publication date: 2022-07-14
Also published as: EP4275320A1; KR20230127211A

Abstract

There is provided a method for performing communication. The method performed by a UE and comprising: transmitting capability information including information whether the UE supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA; receiving information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and performing communication with the base station based on the information related to the FR2 inter-band CA.

Description

COMMUNICATION BASED ON FR2 INTER-BAND CA

The present disclosure relates to mobile communication.

3rd generation partnership project (3GPP) long-term evolution (LTE) is a technology for enabling high-speed packet communications. Many schemes have been proposed for the LTE objective including those that aim to reduce user and provider costs, improve service quality, and expand and improve coverage and system capacity. The 3GPP LTE requires reduced cost per bit, increased service availability, flexible use of a frequency band, a simple structure, an open interface, and adequate power consumption of a terminal as an upper-level requirement.

Work has started in international telecommunication union (ITU) and 3GPP to develop requirements and specifications for new radio (NR) systems. 3GPP has to identify and develop the technology components needed for successfully standardizing the new RAT timely satisfying both the urgent market needs, and the more long-term requirements set forth by the ITU radio communication sector (ITU-R) international mobile telecommunications (IMT)-2020 process. Further, the NR should be able to use any spectrum band ranging at least up to 100 GHz that may be made available for wireless communications even in a more distant future.

The NR targets a single technical framework addressing all usage scenarios, requirements and deployment scenarios including enhanced mobile broadband (eMBB), massive machine-type-communications (mMTC), ultra-reliable and low latency communications (URLLC), etc. The NR shall be inherently forward compatible.

Operations and/or requirements for communication based on Inter-band Carrier Aggregation (CA) in Frequency Range 2 (FR2) (eg. frequency range of 24250MHz~52600MHz) has been discussed. For example, UE Radio Frequency (RF) requirements related to Inter-band CA FR2 has been discussed.

Conventionally, UE performs communication based on inter-band CA by using Independent Beam Management (IBM). Additionally, there are discussions that Common Beam Management (CBM) can be used for the communication based on inter-band CA.

However, operations performed by the UE and/or a base station (eg. gNB), UE capability, and requirements (eg. Effective Isotropic Sensitivity (EIS)) are not defined for a case when the UE performs communication based on inter-band CA by using CBM. For reference, hereinafter, UE performing communication by using CBM may be referred to "CBM UE".

As operations performed by the UE and/or a base station (eg. gNB), UE capability, and requirements are not defined for inter-band CA communication considering CBM operation, there are problems that inter-band CA communication based on CBM cannot be performed and/or accurately.

Accordingly, a disclosure of the present specification has been made in an effort to solve the aforementioned problem.

In accordance with an embodiment of the present disclosure, a disclosure of the present specification provides a method for performing communication. The method is performed by a UE and comprising: transmitting capability information including information whether the UE supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA; receiving information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and performing communication with the base station based on the information related to the FR2 inter-band CA.

In accordance with an embodiment of the present disclosure, a disclosure of the present specification provides a method for performing communication. The method is performed by a base station and comprising: receiving capability information including information whether a UE supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA form the UE; determining information related to the FR2, based on the capability information and/or operating band combination for the FR2 inter-band CA; and transmitting information related to the FR2 inter-band CA, which is configured based on the capability information, to the UE.

In accordance with an embodiment of the present disclosure, a disclosure of the present specification provides a UE in a wireless communication system, the UE comprising: at least one transceiver; at least one processor; and at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising: transmitting capability information including information whether the UE supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA; receiving information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and performing communication with the base station based on the information related to the FR2 inter-band CA.

In accordance with an embodiment of the present disclosure, a disclosure of the present specification provides wireless communication device operating in a wireless communication system, the wireless communication device comprising: generating capability information including information whether the wireless communication device supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA; identifying information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and performing communication with the base station based on the information related to the FR2 inter-band CA.

In accordance with an embodiment of the present disclosure, a disclosure of the present specification provides CRM storing instructions that, based on being executed by at least one processor, perform operations comprising: generating capability information including information whether the wireless communication device supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA; identifying information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and performing communication with the base station based on the information related to the FR2 inter-band CA.

In accordance with an embodiment of the present disclosure, a disclosure of the present specification provides a base station in a wireless communication system, the base station comprising: at least one transceiver; at least one processor; and at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising: receiving capability information including information whether a UE supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA form the UE; determining information related to the FR2, based on the capability information and/or operating band combination for the FR2 inter-band CA; and transmitting information related to the FR2 inter-band CA, which is configured based on the capability information, to the UE.

According to a disclosure of the present disclosure, the above problem of the related art is solved.

For example, communication based on FR2 inter-band CA may be performed efficiently and/or precisely.

Advantageous effects which can be obtained through specific embodiments of the present disclosure are not limited to the advantageous effects listed above. For example, there may be a variety of technical effects that a person having ordinary skill in the related art can understand and/or derive from the present disclosure. Accordingly, the specific effects of the present disclosure are not limited to those explicitly described herein, but may include various effects that may be understood or derived from the technical features of the present disclosure.

FIG. 1 shows an example of a communication system to which implementations of the present disclosure is applied.

FIG. 2 shows an example of wireless devices to which implementations of the present disclosure is applied.

FIG. 3 shows an example of a wireless device to which implementations of the present disclosure is applied.

FIGS. 4a to 4d shows examples of CA configurations based on same frequency group.

FIG. 5 is an example showing reference sensitivity relaxation for inter-band CA based on IBM according to the present disclosure.

FIG. 6 is an example showing EIS spherical coverage requirement relaxation for inter-band CA based on IBM according to the present disclosure.

FIG. 7 is an example showing reference sensitivity relaxation for inter-band CA based on CBM according to the present disclosure.

FIG. 8 is an example showing EIS spherical coverage requirement relaxation for inter-band CA based on CBM according to the present disclosure.

FIG. 9 illustrates an example of operations of a UE according to the present disclosure.

FIG. 10 illustrates an example of operations of a UE and a network according to the present disclosure.

The following techniques, apparatuses, and systems may be applied to a variety of wireless multiple access systems. Examples of the 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 single carrier frequency division multiple access (SC-FDMA) system, and a multicarrier frequency division multiple access (MC-FDMA) system. CDMA may be embodied through radio technology such as universal terrestrial radio access (UTRA) or CDMA2000. TDMA may be embodied through 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 embodied through radio technology such as institute of electrical and electronics engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or evolved UTRA (E-UTRA). UTRA is a part of a 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 employs OFDMA in DL and SC-FDMA in UL. Evolution of 3GPP LTE includes LTE-A (advanced), LTE-A Pro, and/or 5G NR (new radio).

For convenience of description, implementations of the present disclosure are mainly described in regards to a 3GPP based wireless communication system. However, the technical features of the present disclosure are not limited thereto. For example, although the following detailed description is given based on a mobile communication system corresponding to a 3GPP based wireless communication system, aspects of the present disclosure that are not limited to 3GPP based wireless communication system are applicable to other mobile communication systems.

For terms and technologies which are not specifically described among the terms of and technologies employed in the present disclosure, the wireless communication standard documents published before the present disclosure may be referenced.

In the present disclosure, "A or B" may mean "only A", "only B", or "both A and B". In other words, "A or B" in the present disclosure may be interpreted as "A and/or B". For example, "A, B or C" in the present disclosure may mean "only A", "only B", "only C", or "any combination of A, B and C".

In the present disclosure, slash (/) or 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".

In the present disclosure, "at least one of A and B" may mean "only A", "only B" or "both A and B". In addition, the expression "at least one of A or B" or "at least one of A and/or B" in the present disclosure may be interpreted as same as "at least one of A and B".

In addition, in the present disclosure, "at least one of A, B and C" may mean "only A", "only B", "only C", or "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" may mean "at least one of A, B and C".

Also, parentheses used in the present disclosure may mean "for example". In detail, when it is shown as "control information (PDCCH)", "PDCCH" may be proposed as an example of "control information". In other words, "control information" in the present disclosure is not limited to "PDCCH", and "PDDCH" may be proposed as an example of "control information". In addition, even when shown as "control information (i.e., PDCCH)", "PDCCH" may be proposed as an example of "control information".

Technical features that are separately described in one drawing in the present disclosure may be implemented separately or simultaneously.

Although not limited thereto, various descriptions, functions, procedures, suggestions, methods and/or operational flowcharts of the present disclosure disclosed herein can be applied to various fields requiring wireless communication and/or connection (e.g., 5G) between devices.

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

Although user equipment (UE) is illustrated in the accompanying drawings by way of example, the illustrated UE may be referred to as a terminal, mobile equipment (ME), and the like. In addition, the UE may be a portable device such as a notebook computer, a mobile phone, a PDA, a smart phone, a multimedia device, or the like, or may be a non-portable device such as a PC or a vehicle-mounted device.

Hereinafter, the UE is used as an example of a wireless communication device (or a wireless device, or a wireless apparatus) capable of wireless communication. An operation performed by the UE may be performed by a wireless communication device. A wireless communication device may also be referred to as a wireless device, a wireless device, or the like.

A base station, a term used below, generally refers to a fixed station that communicates with a wireless device. The base station may be reffered to as another term such as an evolved-NodeB (eNodeB), an evolved-NodeB (eNB), a BTS (Base Transceiver System), an access point ( Access Point), gNB (Next generation NodeB), etc.

FIG. 1 shows an example of a communication system to which implementations of the present disclosure is applied.

The 5G usage scenarios shown in FIG. 1 are only exemplary, and the technical features of the present disclosure can be applied to other 5G usage scenarios which are not shown in FIG. 1.

Three main requirement categories for 5G include (1) a category of enhanced mobile broadband (eMBB), (2) a category of massive machine type communication (mMTC), and (3) a category of ultra-reliable and low latency communications (URLLC).

Partial use cases may require a plurality of categories for optimization and other use cases may focus only upon one key performance indicator (KPI). 5G supports such various use cases using a flexible and reliable method.

eMBB far surpasses basic mobile Internet access and covers abundant bidirectional work and media and entertainment applications in cloud and augmented reality. Data is one of 5G core motive forces and, in a 5G era, a dedicated voice service may not be provided for the first time. In 5G, it is expected that voice will be simply processed as an application program using data connection provided by a communication system. Main causes for increased traffic volume are due to an increase in the size of content and an increase in the number of applications requiring high data transmission rate. A streaming service (of audio and video), conversational video, and mobile Internet access will be more widely used as more devices are connected to the Internet. These many application programs require connectivity of an always turned-on state in order to push real-time information and alarm for users. Cloud storage and applications are rapidly increasing in a mobile communication platform and may be applied to both work and entertainment. The cloud storage is a special use case which accelerates growth of uplink data transmission rate. 5G is also used for remote work of cloud. When a tactile interface is used, 5G demands much lower end-to-end latency to maintain user good experience. Entertainment, for example, cloud gaming and video streaming, is another core element which increases demand for mobile broadband capability. Entertainment is essential for a smartphone and a tablet in any place including high mobility environments such as a train, a vehicle, and an airplane. Other use cases are augmented reality for entertainment and information search. In this case, the augmented reality requires very low latency and instantaneous data volume.

In addition, one of the most expected 5G use cases relates a function capable of smoothly connecting embedded sensors in all fields, i.e., mMTC. It is expected that the number of potential Internet-of-things (IoT) devices will reach 204 hundred million up to the year of 2020. An industrial IoT is one of categories of performing a main role enabling a smart city, asset tracking, smart utility, agriculture, and security infrastructure through 5G.

URLLC includes a new service that will change industry through remote control of main infrastructure and an ultra-reliable/available low-latency link such as a self-driving vehicle. A level of reliability and latency is essential to control a smart grid, automatize industry, achieve robotics, and control and adjust a drone.

5G is a means of providing streaming evaluated as a few hundred megabits per second to gigabits per second and may complement fiber-to-the-home (FTTH) and cable-based broadband (or DOCSIS). Such fast speed is needed to deliver TV in resolution of 4K or more (6K, 8K, and more), as well as virtual reality and augmented reality. Virtual reality (VR) and augmented reality (AR) applications include almost immersive sports games. A specific application program may require a special network configuration. For example, for VR games, gaming companies need to incorporate a core server into an edge network server of a network operator in order to minimize latency.

Automotive is expected to be a new important motivated force in 5G together with many use cases for mobile communication for vehicles. For example, entertainment for passengers requires high simultaneous capacity and mobile broadband with high mobility. This is because future users continue to expect connection of high quality regardless of their locations and speeds. Another use case of an automotive field is an AR dashboard. The AR dashboard causes a driver to identify an object in the dark in addition to an object seen from a front window and displays a distance from the object and a movement of the object by overlapping information talking to the driver. In the future, a wireless module enables communication between vehicles, information exchange between a vehicle and supporting infrastructure, and information exchange between a vehicle and other connected devices (e.g., devices accompanied by a pedestrian). A safety system guides alternative courses of a behavior so that a driver may drive more safely drive, thereby lowering the danger of an accident. The next stage will be a remotely controlled or self-driven vehicle. This requires very high reliability and very fast communication between different self-driven vehicles and between a vehicle and infrastructure. In the future, a self-driven vehicle will perform all driving activities and a driver will focus only upon abnormal traffic that the vehicle cannot identify. Technical requirements of a self-driven vehicle demand ultra-low latency and ultra-high reliability so that traffic safety is increased to a level that cannot be achieved by human being.

A smart city and a smart home/building mentioned as a smart society will be embedded in a high-density wireless sensor network. A distributed network of an intelligent sensor will identify conditions for costs and energy-efficient maintenance of a city or a home. Similar configurations may be performed for respective households. All of temperature sensors, window and heating controllers, burglar alarms, and home appliances are wirelessly connected. Many of these sensors are typically low in data transmission rate, power, and cost. However, real-time HD video may be demanded by a specific type of device to perform monitoring.

Consumption and distribution of energy including heat or gas is distributed at a higher level so that automated control of the distribution sensor network is demanded. The smart grid collects information and connects the sensors to each other using digital information and communication technology so as to act according to the collected information. Since this information may include behaviors of a supply company and a consumer, the smart grid may improve distribution of fuels such as electricity by a method having efficiency, reliability, economic feasibility, production sustainability, and automation. The smart grid may also be regarded as another sensor network having low latency.

Mission critical application (e.g., e-health) is one of 5G use scenarios. A health part contains many application programs capable of enjoying benefit of mobile communication. A communication system may support remote treatment that provides clinical treatment in a faraway place. Remote treatment may aid in reducing a barrier against distance and improve access to medical services that cannot be continuously available in a faraway rural area. Remote treatment is also used to perform important treatment and save lives in an emergency situation. The wireless sensor network based on mobile communication may provide remote monitoring and sensors for parameters such as heart rate and blood pressure.

Wireless and mobile communication gradually becomes important in the field of an industrial application. Wiring is high in installation and maintenance cost. Therefore, a possibility of replacing a cable with reconstructible wireless links is an attractive opportunity in many industrial fields. However, in order to achieve this replacement, it is necessary for wireless connection to be established with latency, reliability, and capacity similar to those of the cable and management of wireless connection needs to be simplified. Low latency and a very low error probability are new requirements when connection to 5G is needed.

Logistics and freight tracking are important use cases for mobile communication that enables inventory and package tracking anywhere using a location-based information system. The use cases of logistics and freight typically demand low data rate but require location information with a wide range and reliability.

Referring to FIG. 1, the communication system 1 includes wireless devices 100a to 100f, base stations (BSs) 200, and a network 300. Although FIG. 1 illustrates a 5G network as an example of the network of the communication system 1, the implementations of the present disclosure are not limited to the 5G system, and can be applied to the future communication system beyond the 5G system.

The BSs 200 and the network 300 may be implemented as wireless devices and a specific wireless device may operate as a BS/network node with respect to other wireless devices.

The wireless devices 100a to 100f represent devices performing communication using radio access technology (RAT) (e.g., 5G new RAT (NR)) or LTE) and may be referred to as communication/radio/5G devices. The wireless devices 100a to 100f may include, without being limited to, a robot 100a, vehicles 100b-1 and 100b-2, an extended reality (XR) device 100c, a hand-held device 100d, a home appliance 100e, an IoT device 100f, and an artificial intelligence (AI) device/server 400. For example, the vehicles may include a vehicle having a wireless communication function, an autonomous driving vehicle, and a vehicle capable of performing communication between vehicles. The vehicles may include an unmanned aerial vehicle (UAV) (e.g., a drone). The XR device may include an AR/VR/Mixed Reality (MR) device and may be implemented in the form of a head-mounted device (HMD), a head-up display (HUD) mounted in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance device, a digital signage, a vehicle, a robot, etc. The hand-held device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch or a smartglasses), and a computer (e.g., a notebook). The home appliance may include a TV, a refrigerator, and a washing machine. The IoT device may include a sensor and a smartmeter.

In the present disclosure, the wireless devices 100a to 100f may be called user equipments (UEs). A UE may include, for example, a cellular phone, a smartphone, a laptop computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, a slate personal computer (PC), a tablet PC, an ultrabook, a vehicle, a vehicle having an autonomous traveling function, a connected car, an UAV, an AI module, a robot, an AR device, a VR device, an MR device, a hologram device, a public safety device, an MTC device, an IoT device, a medical device, a FinTech device (or a financial device), a security device, a weather/environment device, a device related to a 5G service, or a device related to a fourth industrial revolution field.

The UAV may be, for example, an aircraft aviated by a wireless control signal without a human being onboard.

The VR device may include, for example, a device for implementing an object or a background of the virtual world. The AR device may include, for example, a device implemented by connecting an object or a background of the virtual world to an object or a background of the real world. The MR device may include, for example, a device implemented by merging an object or a background of the virtual world into an object or a background of the real world. The hologram device may include, for example, a device for implementing a stereoscopic image of 360 degrees by recording and reproducing stereoscopic information, using an interference phenomenon of light generated when two laser lights called holography meet.

The public safety device may include, for example, an image relay device or an image device that is wearable on the body of a user.

The MTC device and the IoT device may be, for example, devices that do not require direct human intervention or manipulation. For example, the MTC device and the IoT device may include smartmeters, vending machines, thermometers, smartbulbs, door locks, or various sensors.

The medical device may be, for example, a device used for the purpose of diagnosing, treating, relieving, curing, or preventing disease. For example, the medical device may be a device used for the purpose of diagnosing, treating, relieving, or correcting injury or impairment. For example, the medical device may be a device used for the purpose of inspecting, replacing, or modifying a structure or a function. For example, the medical device may be a device used for the purpose of adjusting pregnancy. For example, the medical device may include a device for treatment, a device for operation, a device for (in vitro) diagnosis, a hearing aid, or a device for procedure.

The security device may be, for example, a device installed to prevent a danger that may arise and to maintain safety. For example, the security device may be a camera, a closed-circuit TV (CCTV), a recorder, or a black box.

The FinTech device may be, for example, a device capable of providing a financial service such as mobile payment. For example, the FinTech device may include a payment device or a point of sales (POS) system.

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

The wireless devices 100a to 100f may be connected to the network 300 via the BSs 200. An 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 via the network 300. The network 300 may be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, and a beyond-5G network. Although the wireless devices 100a to 100f may communicate with each other through the BSs 200/network 300, the wireless devices 100a to 100f may perform direct communication (e.g., sidelink communication) with each other without passing through the BSs 200/network 300. For example, the vehicles 100b-1 and 100b-2 may perform direct communication (e.g., vehicle-to-vehicle (V2V)/vehicle-to-everything (V2X) communication). The IoT device (e.g., a sensor) may perform direct communication with other IoT devices (e.g., sensors) or other wireless devices 100a to 100f.

Wireless communication/

connections

150a, 150b and 150c may be established between the wireless devices 100a to 100f and/or between wireless device 100a to 100f and BS 200 and/or between BSs 200. Herein, the wireless communication/connections may be established through various RATs (e.g., 5G NR) such as uplink/downlink communication 150a, sidelink communication (or device-to-device (D2D) communication) 150b, inter-base station communication 150c (e.g., relay, integrated access and backhaul (IAB)), etc. The wireless devices 100a to 100f and the BSs 200/the wireless devices 100a to 100f may transmit/receive radio signals to/from each other through the wireless communication/

connections

150a, 150b and 150c. For example, the wireless communication/

connections

150a, 150b and 150c may transmit/receive signals through various physical channels. To this end, at least a part of various configuration information configuring processes, various signal processing processes (e.g., channel encoding/decoding, modulation/demodulation, and resource mapping/de-mapping), and resource allocating processes, for transmitting/receiving radio signals, may be performed based on the various proposals of the present disclosure.

AI refers to the field of studying artificial intelligence or the methodology that can create it, and machine learning refers to the field of defining various problems addressed in the field of AI and the field of methodology to solve them. Machine learning is also defined as an algorithm that increases the performance of a task through steady experience on a task.

Robot means a machine that automatically processes or operates a given task by its own ability. In particular, robots with the ability to recognize the environment and make self-determination to perform actions can be called intelligent robots. Robots can be classified as industrial, medical, home, military, etc., depending on the purpose or area of use. The robot can perform a variety of physical operations, such as moving the robot joints with actuators or motors. The movable robot also includes wheels, brakes, propellers, etc., on the drive, allowing it to drive on the ground or fly in the air.

Autonomous driving means a technology that drives on its own, and autonomous vehicles mean vehicles that drive without user's control or with minimal user's control. For example, autonomous driving may include maintaining lanes in motion, automatically adjusting speed such as adaptive cruise control, automatic driving along a set route, and automatically setting a route when a destination is set. The vehicle covers vehicles equipped with internal combustion engines, hybrid vehicles equipped with internal combustion engines and electric motors, and electric vehicles equipped with electric motors, and may include trains, motorcycles, etc., as well as cars. Autonomous vehicles can be seen as robots with autonomous driving functions.

Extended reality is collectively referred to as VR, AR, and MR. VR technology provides objects and backgrounds of real world only through computer graphic (CG) images. AR technology provides a virtual CG image on top of a real object image. MR technology is a CG technology that combines and combines virtual objects into the real world. MR technology is similar to AR technology in that they show real and virtual objects together. However, there is a difference in that in AR technology, virtual objects are used as complementary forms to real objects, while in MR technology, virtual objects and real objects are used as equal personalities.

NR supports multiples numerologies (and/or multiple subcarrier spacings (SCS)) to support various 5G services. For example, if SCS is 15 kHz, wide area can be supported in traditional cellular bands, and if SCS is 30 kHz/60 kHz, dense-urban, lower latency, and wider carrier bandwidth can be supported. If SCS is 60 kHz or higher, bandwidths greater than 24.25 GHz can be supported to overcome phase noise.

The NR frequency band may be defined as two types of frequency range, i.e., FR1 and FR2. The numerical value of the frequency range may be changed. For example, the frequency ranges of the two types (FR1 and FR2) may be as shown in Table 1 below. For ease of explanation, in the frequency ranges used in the NR system, FR1 may mean "sub 6 GHz range", FR2 may mean "above 6 GHz range," and may be referred to as millimeter wave (mmW). FR2 may include FR 2-1 and FR 2-1 as shown in Examples of Table 1 and Table 2.

Frequency Range designation		Corresponding frequency range	Subcarrier Spacing
FR1		450MHz - 6000MHz	15, 30, 60kHz
FR2	FR2-1	24250MHz - 52600MHz	60, 120, 240kHz
FR2	FR2-2	52700MHz - 71000MHz	120, 480, 960kHz

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

Frequency Range designation		Corresponding frequency range	Subcarrier Spacing
FR1		410MHz - 7125MHz	15, 30, 60kHz
FR2	FR2-1	24250MHz - 52600MHz	60, 120, 240kHz
FR2	FR2-2	52700MHz - 71000MHz	120, 480, 960kHz

Here, the radio communication technologies implemented in the wireless devices in the present disclosure may include narrowband internet-of-things (NB-IoT) technology for low-power communication as well as LTE, NR and 6G. For example, NB-IoT technology may be an example of low power wide area network (LPWAN) technology, may be implemented in specifications such as LTE Cat NB1 and/or LTE Cat NB2, and may not be limited to the above-mentioned names. Additionally and/or alternatively, the radio communication technologies implemented in the wireless devices in the present disclosure may communicate based on LTE-M technology. For example, LTE-M technology may be an example of LPWAN technology and be called by various names such as enhanced machine type communication (eMTC). For example, LTE-M technology may be implemented in at least one of the various specifications, such as 1) LTE Cat 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-bandwidth limited (non-BL), 5) LTE-MTC, 6) LTE Machine Type Communication, and/or 7) LTE M, and may not be limited to the above-mentioned names. Additionally and/or alternatively, the radio communication technologies implemented in the wireless devices in the present disclosure may include at least one of ZigBee, Bluetooth, and/or LPWAN which take into account low-power communication, and may not be limited to the above-mentioned names. For example, ZigBee technology may generate personal area networks (PANs) associated with small/low-power digital communication based on various specifications such as IEEE 802.15.4 and may be called various names.

FIG. 2 shows an example of wireless devices to which implementations of the present disclosure is applied.

Referring to FIG. 2, a first wireless device 100 and a second wireless device 200 may transmit/receive radio signals to/from an external device through a variety of RATs (e.g., LTE and NR).

In FIG. 2, {the first wireless device 100 and the second wireless device 200} may correspond to at least one of {the wireless device 100a to 100f and the BS 200}, {the wireless device 100a to 100f and the wireless device 100a to 100f} and/or {the BS 200 and the BS 200} of FIG. 1.

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.

The processing chip 101 may include at least one processor, such a processor 102, and at least one memory, such as a memory 104. It is exemplarily shown in FIG. 2 that the memory 104 is included in the processing chip 101. Additional and/or alternatively, the memory 104 may be placed outside of 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 flowcharts described in the present disclosure. For example, the processor 102 may process information within the memory 104 to generate first information/signals and then transmit radio signals including the first information/signals through the transceiver 106. The processor 102 may receive radio signals including second information/signals through the transceiver 106 and then store information obtained by processing the second information/signals in the memory 104.

The memory 104 may be operably connectable to the processor 102. The memory 104 may store various types of information and/or instructions. The memory 104 may store a software code 105 which implements instructions that, when executed by the processor 102, perform the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure. 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 flowcharts disclosed in the present disclosure. For example, the software code 105 may control the processor 102 to perform one or more protocols. For example, the software code 105 may control the processor 102 to perform one or more layers of the radio interface protocol.

Herein, the processor 102 and the memory 104 may be a part of a communication modem/circuit/chip designed to implement RAT (e.g., LTE or NR). The transceiver 106 may be connected to the processor 102 and transmit and/or receive radio signals through one or more antennas 108. Each of the transceiver 106 may include a transmitter and/or a receiver. The transceiver 106 may be interchangeably used with radio frequency (RF) unit(s). In the present disclosure, 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 a processor 202, and at least one memory, such as a memory 204. It is exemplarily shown in FIG. 2 that the memory 204 is included in the processing chip 201. Additional and/or alternatively, the memory 204 may be placed outside of 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 flowcharts described in the present disclosure. For example, the processor 202 may process information within the memory 204 to generate third information/signals and then transmit radio signals including the third information/signals through the transceiver 206. The processor 202 may receive radio signals including fourth information/signals through the transceiver 106 and then store information obtained by processing the fourth information/signals in the memory 204.

The memory 204 may be operably connectable to the processor 202. The memory 204 may store various types of information and/or instructions. The memory 204 may store a software code 205 which implements instructions that, when executed by the processor 202, perform the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure. For example, the software code 205 may implement instructions that, when executed by the processor 202, perform the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure. For example, the software code 205 may control the processor 202 to perform one or more protocols. For example, the software code 205 may control the processor 202 to perform one or more layers of the radio interface protocol.

Herein, the processor 202 and the memory 204 may be a part of a communication modem/circuit/chip designed to implement RAT (e.g., LTE or NR). The transceiver 206 may be connected to the processor 202 and transmit and/or receive radio signals through one or more antennas 208. Each of the transceiver 206 may include a transmitter and/or a receiver. The transceiver 206 may be interchangeably used with RF unit. In the present disclosure, 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 more specifically. One or more protocol layers may be implemented by, without being limited to, one or

more processors

102 and 202. For example, the one or

more processors

102 and 202 may implement one or more layers (e.g., functional layers such as physical (PHY) layer, media access control (MAC) layer, radio link control (RLC) layer, packet data convergence protocol (PDCP) layer, radio resource control (RRC) layer, and service data adaptation protocol (SDAP) layer). The one or

more processors

102 and 202 may generate one or more protocol data units (PDUs) and/or one or more service data unit (SDUs) according to the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure. The one or

more processors

102 and 202 may generate messages, control information, data, or information according to the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure. The one or

more processors

102 and 202 may generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data, or information according to the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure and provide the generated signals to the one or

more transceivers

106 and 206. The one or

more processors

102 and 202 may receive the signals (e.g., baseband signals) from the one or

more transceivers

106 and 206 and acquire the PDUs, SDUs, messages, control information, data, or information according to the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure.

The one or

more processors

102 and 202 may be referred to as controllers, microcontrollers, microprocessors, or microcomputers. The one or

more processors

102 and 202 may be implemented by hardware, firmware, software, or a combination thereof. As an 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), or one or more field programmable gate arrays (FPGAs) may be included in the one or

more processors

102 and 202. The descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure may be implemented using firmware or software and the firmware or software may be configured to include the modules, procedures, or functions. Firmware or software configured to perform the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure may be included in the one or

more processors

102 and 202 or stored in the one or

more memories

104 and 204 so as to be driven by the one or

more processors

102 and 202. The descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure may be implemented using firmware or software in the form of code, commands, and/or a set of commands.

The one or

more memories

104 and 204 may be connected to the one or

more processors

102 and 202 and store various types of data, signals, messages, information, programs, code, instructions, and/or commands. The one or

more memories

104 and 204 may be configured by read-only memories (ROMs), random access memories (RAMs), electrically erasable programmable read-only memories (EPROMs), flash memories, hard drives, registers, cash memories, computer-readable storage media, and/or combinations thereof. The one or

more memories

104 and 204 may be located at the interior and/or exterior of the one or

more processors

102 and 202. The one or

more memories

104 and 204 may be connected to the one or

more processors

102 and 202 through various technologies such as wired or wireless connection.

The one or

more transceivers

106 and 206 may transmit user data, control information, and/or radio signals/channels, mentioned in the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure, to one or more other devices. The one or

more transceivers

106 and 206 may receive user data, control information, and/or radio signals/channels, mentioned in the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure, from one or more other devices. For example, the one or

more transceivers

106 and 206 may be connected to the one or

more processors

102 and 202 and transmit and receive radio signals. For example, the one or

more processors

102 and 202 may perform control so that the one or

more transceivers

106 and 206 may transmit user data, control information, or radio signals to one or more other devices. The one or

more processors

102 and 202 may perform control so that the one or

more transceivers

106 and 206 may receive user data, control information, or radio signals from one or more other devices.

The one or

more transceivers

106 and 206 may be connected to the one or

more antennas

108 and 208 and the one or

more transceivers

106 and 206 may be configured to transmit and receive user data, control information, and/or radio signals/channels, mentioned in the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in the present disclosure, through the one or

more antennas

108 and 208. In the present disclosure, the one or

more antennas

108 and 208 may be a plurality of physical antennas or a plurality of logical antennas (e.g., antenna ports).

The one or

more transceivers

106 and 206 may convert received user data, control information, radio signals/channels, etc., from RF band signals into baseband signals in order to process received user data, control information, radio signals/channels, etc., using the one or

more processors

102 and 202. The one or

more transceivers

106 and 206 may convert the user data, control information, radio signals/channels, etc., processed using the one or

more processors

102 and 202 from the base band signals into the RF band signals. To this end, the one or

more transceivers

106 and 206 may include (analog) oscillators and/or filters. For example, the one or

more transceivers

106 and 206 can up-convert OFDM baseband signals to OFDM signals by their (analog) oscillators and/or filters under the control of the one or

more processors

102 and 202 and transmit the up-converted OFDM signals at the carrier frequency. The one or

more transceivers

106 and 206 may receive OFDM signals at a carrier frequency and down-convert the OFDM signals into OFDM baseband signals by their (analog) oscillators and/or filters under the control of the one or

more processors

102 and 202.

In the implementations of the present disclosure, a UE may operate as a transmitting device in uplink (UL) and as a receiving device in downlink (DL). In the implementations of the present disclosure, a BS may operate as a receiving device in UL and as a transmitting device in DL. Hereinafter, for convenience of description, it is mainly assumed that the first wireless device 100 acts as the UE, and the second wireless device 200 acts as the BS. For example, the processor(s) 102 connected to, mounted on or launched in the first wireless device 100 may be configured to perform the UE behavior according to an implementation of the present disclosure or control the transceiver(s) 106 to perform the UE behavior according to an implementation of the present disclosure. The processor(s) 202 connected to, mounted on or launched in the second wireless device 200 may be configured to perform the BS behavior according to an implementation of the present disclosure or control the transceiver(s) 206 to perform the BS behavior according to an implementation of the present disclosure.

In the present disclosure, a BS is also referred to as a node B (NB), an eNode B (eNB), or a gNB.

FIG. 3 shows an example of a wireless device to which implementations of the present disclosure is applied.

The wireless device may be implemented in various forms according to a use-case/service (refer to FIG. 1).

Referring to FIG. 3,

wireless devices

100 and 200 may correspond to the

wireless devices

100 and 200 of FIG. 2 and may be configured by various elements, components, units/portions, and/or modules. For example, each of the

wireless devices

100 and 200 may include a communication unit 110, a control unit 120, a memory unit 130, and additional components 140. The communication unit 110 may include a communication circuit 112 and transceiver(s) 114. For example, the communication circuit 112 may include the one or

more processors

102 and 202 of FIG. 2 and/or the one or

more memories

104 and 204 of FIG. 2. For example, the transceiver(s) 114 may include the one or

more transceivers

106 and 206 of FIG. 2 and/or the one or

more antennas

108 and 208 of FIG. 2. The control unit 120 is electrically connected to the communication unit 110, the memory unit 130, and the additional components 140 and controls overall operation of each of the

wireless devices

100 and 200. For example, the control unit 120 may control an electric/mechanical operation of each of the

wireless devices

100 and 200 based on programs/code/commands/information stored in the memory unit 130. The control unit 120 may transmit the information stored in the memory unit 130 to the exterior (e.g., other communication devices) via the communication unit 110 through a wireless/wired interface or store, in the memory unit 130, information received through the wireless/wired interface from the exterior (e.g., other communication devices) via the communication unit 110.

The additional components 140 may be variously configured according to types of the

wireless devices

100 and 200. For example, the additional components 140 may include at least one of a power unit/battery, input/output (I/O) unit (e.g., audio I/O port, video I/O port), a driving unit, and a computing unit. The

wireless devices

100 and 200 may be implemented in the form of, without being limited to, the robot (100a of FIG. 1), the vehicles (100b-1 and 100b-2 of FIG. 1), the XR device (100c of FIG. 1), the hand-held device (100d of FIG. 1), the home appliance (100e of FIG. 1), the IoT device (100f of FIG. 1), a digital broadcast terminal, a hologram device, a public safety device, an MTC device, a medicine device, a FinTech device (or a finance device), a security device, a climate/environment device, the AI server/device (400 of FIG. 1), the BSs (200 of FIG. 1), a network node, etc. The

wireless devices

100 and 200 may be used in a mobile or fixed place according to a use-example/service.

In FIG. 3, the entirety of the various elements, components, units/portions, and/or modules in the

wireless devices

100 and 200 may be connected to each other through a wired interface or at least a part thereof may be wirelessly connected through the communication unit 110. For example, in each of the

wireless devices

100 and 200, the control unit 120 and the communication unit 110 may be connected by wire and the control unit 120 and first units (e.g., 130 and 140) may be wirelessly connected through the communication unit 110. Each element, component, unit/portion, and/or module within the

wireless devices

100 and 200 may further include one or more elements. For example, the control unit 120 may be configured by a set of one or more processors. As an example, the control unit 120 may be configured by a set of a communication control processor, an application processor (AP), an electronic control unit (ECU), a graphical processing unit, and a memory control processor. As another example, the memory unit 130 may be configured by a RAM, a DRAM, a ROM, a flash memory, a volatile memory, a non-volatile memory, and/or a combination thereof.

<Operating Band in NR >

An operating band shown in Table 3 is a reframing operating band that is transitioned from an operating band of LTE/LTE-A. This operating band is referred to as FR1 band.

NR Operating Band	Uplink Operating Band	Downlink Operating Band	Duplex Mode
NR Operating Band	F_{UL_low} - F_{UL_high}	F_{DL_low} - F_{DL_high}	Duplex Mode
n1	1920 MHz - 1980 MHz	2110 MHz - 2170 MHz	FDD
n2	1850 MHz - 1910 MHz	1930 MHz - 1990 MHz	FDD
n3	1710 MHz - 1785 MHz	1805 MHz - 1880 MHz	FDD
n5	824 MHz - 849 MHz	869 MHz - 894 MHz	FDD
n7	2500 MHz - 2570 MHz	2620 MHz - 2690 MHz	FDD
n8	880 MHz - 915 MHz	925 MHz - 960 MHz	FDD
n12	699 MHz - 716 MHz	729 MHz - 746 MHz	FDD
n14	788 MHz - 798 MHz	758 MHz - 768 MHz	FDD
n18	815 MHz - 830 MHz	860 MHz - 875 MHz	FDD
n20	832 MHz - 862 MHz	791 MHz - 821 MHz	FDD
n25	1850 MHz - 1915 MHz	1930 MHz - 1995 MHz	FDD
n26	814 MHz - 849 MHz	859 MHz - 894 MHz	FDD
n28	703 MHz - 748 MHz	758 MHz - 803 MHz	FDD
n29	N/A	717 MHz - 728 MHz	SDL
n30	2305 MHz - 2315 MHz	2350 MHz - 2360 MHz	FDD
n34	2010 MHz - 2025 MHz	2010 MHz - 2025 MHz	TDD
n38	2570 MHz - 2620 MHz	2570 MHz - 2620 MHz	TDD
n39	1880 MHz - 1920 MHz	1880 MHz - 1920 MHz	TDD
n40	2300 MHz - 2400 MHz	2300 MHz - 2400 MHz	TDD
n41	2496 MHz - 2690 MHz	2496 MHz - 2690 MHz	TDD
n46	5150 MHz - 5925 MHz	5150 MHz - 5925 MHz	TDD
n47	5855 MHz - 5925 MHz	5855 MHz - 5925 MHz	TDD
n48	3550 MHz - 3700 MHz	3550 MHz - 3700 MHz	TDD
n50	1432 MHz - 1517 MHz	1432 MHz - 1517 MHz	TDD1
n51	1427 MHz - 1432 MHz	1427 MHz - 1432 MHz	TDD
n53	2483.5 MHz - 2495 MHz	2483.5 MHz - 2495 MHz	TDD
n65	1920 MHz - 2010 MHz	2110 MHz - 2200 MHz	FDD
n66	1710 MHz - 1780 MHz	2110 MHz - 2200 MHz	FDD
n70	1695 MHz - 1710 MHz	1995 MHz - 2020 MHz	FDD
n71	663 MHz - 698 MHz	617 MHz - 652 MHz	FDD
n74	1427 MHz - 1470 MHz	1475 MHz - 1518 MHz	FDD
n75	N/A	1432 MHz - 1517 MHz	SDL
n76	N/A	1427 MHz - 1432 MHz	SDL
n77	3300 MHz - 4200 MHz	3300 MHz - 4200 MHz	TDD
n78	3300 MHz - 3800 MHz	3300 MHz - 3800 MHz	TDD
n79	4400 MHz - 5000 MHz	4400 MHz - 5000 MHz	TDD
n80	1710 MHz - 1785 MHz	N/A	SUL
n81	880 MHz - 915 MHz	N/A	SUL
n82	832 MHz - 862 MHz	N/A	SUL
n83	703 MHz - 748 MHz	N/A	SUL
n84	1920 MHz - 1980 MHz	N/A	SUL
n86	1710 MHz - 1780 MHz	N/A	SUL
n89	824 MHz - 849 MHz	N/A	SUL
n90	2496 MHz - 2690 MHz	2496 MHz - 2690 MHz	TDD
n91	832 MHz - 862 MHz	1427 MHz - 1432 MHz	FDD
n92	832 MHz - 862 MHz	1432 MHz - 1517 MHz	FDD
n93	880 MHz - 915 MHz	1427 MHz - 1432 MHz	FDD
n94	880 MHz - 915 MHz	1432 MHz - 1517 MHz	FDD
n95	2010 MHz - 2025 MHz	N/A	SUL
n96	5925 MHz - 7125 MHz	5925 MHz - 7125 MHz	TDD

The following table shows an NR operating band defined at high frequencies. This operating band is referred to as FR2 band.

NR Operating Band	Uplink Operating Band	Downlink Operating Band	Duplex Mode
NR Operating Band	F_UL _{_} _low - F_UL _{_high}	F_DL _{_} _low - F_DL _{_high}	Duplex Mode
n257	26500 MHz - 29500 MHz	26500 MHz - 29500 MHz	TDD
n258
	24250 MHz -27500 MHz	24250 MHz -27500 MHz	TDD
n259
	39500 MHz - 43500 MHz	39500 MHz - 43500 MHz	TDD
n260
	37000 MHz -40000 MHz	37000 MHz - 40000 MHz	TDD
n261
	27500 MHz - 28350 MHz	27500 MHz - 28350 MHz	TDD
n262	47200 MHz - 48200 MHz	47200 MHz - 48200 MHz	TDD
n263	57000 MHz - 71000 MHz	57000 MHz - 71000 MHz	TDD

<Carrier Aggregation>

A carrier aggregation system is now described.

A carrier aggregation system aggregates a plurality of component carriers (CCs). A meaning of an existing cell is changed according to the above carrier aggregation. According to the carrier aggregation, a cell may signify a combination of a downlink component carrier and an uplink component carrier or an independent downlink component carrier.

Further, the cell in the carrier aggregation may be classified into a primary cell, a secondary cell, and a serving cell. The primary cell signifies a cell operated in a primary frequency. The primary cell signifies a cell which UE performs an initial connection establishment procedure or a connection reestablishment procedure or a cell indicated as a primary cell in a handover procedure. The secondary cell signifies a cell operating in a secondary frequency. Once the RRC connection is established, the secondary cell is used to provided an additonal radio resouce.

As described above, the carrier aggregation system may support a plurality of component carriers (CCs), that is, a plurality of serving cells unlike a single carrier system.

The carrier aggregation system may support a cross-carrier scheduling. The cross-carrier scheduling is a scheduling method capable of performing resource allocation of a PDSCH transmitted through other component carrier through a PDCCH transmitted through a specific component carrier and/or resource allocation of a PUSCH transmitted through other component carrier different from a component carrier basically linked with the specific component carrier.

Carrier aggregation may be classified into a continuous carrier aggregation in which aggregated carriers are continuous and a non-contiguous carrier aggregation in which aggregated carriers are separated from each other. In the following, carrier aggregation simply should be understood to include both the case where the component carrier (CC) is continuous and the case where it is discontinuous. The number of CCs aggregated between the downlink and the uplink may be set differently. A case in which the number of downlink CCs and the number of uplink CCs are the same may be referred to as symmetric aggregation, and a case in which the number of downlink CCs are different may be referred to as asymmetric aggregation.

On the other hand, carrier aggregation can also be classified into inter-band CA and intra-band CA. The inter-band CA is a method of aggregating and using each CC existing in different operating bands, and the intra-band CA is a method of aggregating and using each CC in the same operating band. In addition, the CA technology is more specifically, intra-band contiguous CA, intra-band non-contiguous CA and inter-band discontinuity. Non-Contiguous) CA.

<Disclosure of the Present Specification>

In the disclosure of the present specification, CA operation in FR2 considering CBM may be suggested. For example, Operations performed by the UE and/or a base station (eg. gNB), UE capability, and requirements may be suggested for inter-band CA communication based on CBM.

For reference, beam management may mean procedures or operations in order to manage beams used for communication between the UE and the network. For example, beam management is used in order to acquire and maintain a set of TRxP (s) and/or UE beams which can be used for DL and UL transmission/reception. TRxP stands for Transmission Reception Point.

IBM may mean that beam management is performed independently for at least one beams, which are used for DL and UL transmission/reception based on a plurality of Component Carriers (CCs). CBM may mean that beam management is performed commonly for at least one beams, which are used for DL and UL transmission/reception based on a plurality of Component Carriers (CCs).

For example, for a case that CBM UE can perform FR2 inter-band CA, UE capability and EIS requirements for normal CA operation are suggested hereinafter.

For example, basic environmental features such as, UE capability and EIS standard requirements may be proposed for CBM UE to support FR2 inter-band CA operation.

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

Conventionally, some discussion were made for CBM and IBM for FR2 inter-band CA. Based on the previous discussions, the present specification may discuss an applicability of CBM/IBM for different CA configurations in examples of discussion as below. Here, a CBM UE may mean a UE capable of common beam management for FR2 inter-band CA. And an IBM UE may mean a UE capable of independent beam management for FR2 inter-band CA.

1) Example 1 of discussion

For CBM applicability, whether CBM can only support CA configurations within same frequency group was not defined.

For IBM applicability, IBM UE capability may be applicable for all CA configurations. Whether IBM should be the baseline (i.e., if CBM can be considered as an incapability signaling for the UE to use for certain allowed band combinations) was not defined. Whether the same IBM requirements apply to all CA configurations was not defined

For how to state in standard specification, "frequency group" term may not be defined in specification. If either CBM or IBM is concluded as infeasible for certain band combinations, it may be reasonable to clearly state in the spec that only the requirements of feasible BM apply to these band combinations. If both CBM and IBM are concluded as feasible for certain band combinations, IBM/CBM may be up to UE's capability. For applicability of CBM/IBM capability, detailed approach to justify applicability of CBM capability is not defined.

For frequency separation class, whether separation class extends to be indicated per band combination per receiving chain for L+L and H+H CA combinations was not defined. Whether and/or how frequency separation class is introduced for inter-band CA based on CBM and IBM were not defined.

2) Example 2 of discussion

For IBM for DL CA between bands in the same frequency group, typical inter-band CA deployment between bands in the same frequency group cannot be limited to co-located deployments. IBM UEs are implementable. Feasibility to support may be left to UE vendor (implementation) choice.

For inter-band UL CA, for the case of simultaneous uplink in multiple bands, whether per band or per UE is not defined. Max TRP and max EIRP limit requirements are not defined. Emissions requirements, P-MPR, PHR, EIRP and/or TRP are not defined. Power sharing between bands are not defined.

Hereinafter, disclosure of the present specification is explained with various examples. For reference, the following examples may be applied independently or applied based on a combination of one or more examples.

1. First Example of the Disclosure of the Present Specification

1) CBM applicability

i) Same frequency group vs different frequency group

Herein, same frequency group may mean a group of operating bands used for CA has frequency bands overlapping each other or frequency bands located nearby in frequency region. For example, same frequency group may include operating bands including frequency range near 28GHz or including 28GHz. For another example, same frequency group may include operating bands including frequency range near 39GHz or including 39GHz. Hereinafter, operating band including frequency range near 28GHz or including 28GHz may be referred to "L" or "Low operating band". Operating band including frequency range near 39GHz or including 39GHz may be referred to "H" or "High operating band".

Different frequency group may mean a group of operating bands used for CA has frequency bands not overlapping each other and not located nearby in frequency region. Different frequency group may mean a group of operating bands which is not the same frequency group. For example, different frequency group may include operating bands which are H and L.

For example, the different frequency group may include L+H (e.g, 28GHz + 39GHz), which means the different frequency group includes operating band corresponding to L and operating band corresponding to H. For example, the same frequency group may include L+L(e.g, 28GHz + 28GHz) or H+H (e.g, 39GHz + 39GHz), which means the same frequency group includes operating bands corresponding to L or operating bands corresponding to H.

In general, beam forming parameters are related to frequency. If inter-band CA is configured with different frequency group, L+H (e.g, 28GHz + 39GHz), difference of frequency between CCs is very high. If UE supports IBM, optimal beam forming for each band can be performed regardless of difference of frequency. However, if UE supports CBM, optimal beam forming cannot be performed. For example, big difference of frequency between CCs may not be efficiently covered by beam forming operation based on CBM. This can result in big performance degradation. Here, L and H are representative of Low band(28GHz) and High band(39GHz).

On the other hand, if inter-band CA is configured within same frequency group, L+L(e.g, 28GHz + 28GHz) or H+H (e.g, 39GHz + 39GHz), difference of frequency between CCs is not high. If UE supports CBM, performance degradation can be expected to be not high.

Therefore, CBM may be applicable to inter-band CA within same frequency group rather than with difference frequency group.

Exemplary proposal 1: CBM is applicable to inter-band CA within same frequency group rather than with difference frequency group.

ii) Co-located vs non-co-located deployment

CBM cannot support different beam directions simultaneously with common beam, however, CBM can support same beam direction. Same beam direction is possible in co-located deployment. Co-located deployment may mean that cells transmitting signal based on different CCs are located nearby or in same position, or located in a same device. Therefore, CBM can be applicable to co-located deployment.

Exemplary proposal 2: CBM is applicable to co-located deployment.

iii) IBM applicability

In Example 1 of discussion, it was agreed that IBM UE capability is applicable for all CA configurations, however, more discussion is needed whether IBM is baseline or not, and CBM can be considered for certain allowed band combinations.

In Example 2 of discussion, it was agreed that feasibility to support IBM for DL CA between bands in the same frequency group is left to UE vendor (implementation) choice.

Regarding both Example 1 and Example 2 of discussion, IBM may be considered as baseline for inter-band CA with different frequency band group, and may not be considered for inter-band CA within same frequency group. For same frequency group, both IBM and CBM can be applicable and UE can support either IBM or CBM.

Exemplary proposal 3: For inter-band CA with different frequency group, IBM is applicable as baseline.

Exemplary proposal 4: For inter-band CA within same frequency group, both IBM and CBM can be applicable and UE can support either IBM or CBM.

iv) Applicability of CBM/IBM capability

Regarding Exemplary proposal 1, we consider band combination within same frequency group with L+L or H+H.

L+L may include band combinations of n257 + n258, n257+n261, n258+n261.

H+H may include band combinations of n259+n260.

L+H may be used for different frequency group.

Figures 4a to 4d shows 4 examples above including frequency separation between the lower edge of the lowest CC (Component Carrier) and the upper edge of the highest CC with assumption of each channel bandwidth of 100MHz.

FIGS. 4a to 4d shows examples of CA configurations based on same frequency group.

Frequency separation may mean frequency difference between lower edge of lowest CC and upper edge of highest CC.

In various examples shown in FIGS. 4a to 4d, inter-band CA may be configured based on CCs respectively included in two operating bands.

In Fig. 4a, operating bands n257 and n258 are shown. Operating band n257 includes a frequency range of 26500 MHz to 2950 MHz. Operating band n258 includes a frequency range of 24250MHz to 27500MHz.

When highest CC is configured based on frequency range of 26500MHz to 26600MHz in operating band n257, and lowest CC is configured based on frequency range of 26400MHz to 26500MHz in operating band n258, frequency separation may be 200MHz. When highest CC is configured based on frequency range of 29400MHz to 29500MHz in operating band n257, and lowest CC is configured based on frequency range of 24250MHz to 24350MHz in operating band n258, frequency separation may be 5250MHz.

In Fig. 4b, operating bands n257 and n261 are shown. Operating band n257 includes a frequency range of 26500 MHz to 2950 MHz. Operating band n261 includes a frequency range of 27500MHz to 28350MHz.

When highest CC is configured based on frequency range of 28350MHz to 28450MHz in operating band n257, and lowest CC is configured based on frequency range of 28250MHz to 28350MHz in operating band n261, frequency separation may be 200MHz. When highest CC is configured based on frequency range of 29400MHz to 29500MHz in operating band n257, and lowest CC is configured based on frequency range of 27500MHz to 27600MHz in operating band n261, frequency separation may be 2000MHz.

In Fig. 4c, operating bands n258 and n261 are shown. Operating band n258 includes a frequency range of 24250 MHz to 27500 MHz. Operating band n261 includes a frequency range of 27500MHz to 28350MHz.

When highest CC is configured based on frequency range of 27500MHz to 27600MHz in operating band n261, and lowest CC is configured based on frequency range of 27400MHz to 27500MHz in operating band n258, frequency separation may be 200MHz. When highest CC is configured based on frequency range of 28250MHz to 28350MHz in operating band n261, and lowest CC is configured based on frequency range of 24250 MHz to 24350MHz in operating band n258, frequency separation may be 4100MHz.

In Fig. 4d, operating bands n259 and n260 are shown. Operating band n259 includes a frequency range of 39500MHz to 43500MHz. Operating band n260 includes a frequency range of 37000MHz to 40000MHz.

When highest CC is configured based on frequency range of 39500MHz to 39600MHz in operating band n259, and lowest CC is configured based on frequency range of 39400MHz to 39500MHz in operating band n260, frequency separation may be 200MHz. When highest CC is configured based on frequency range of 43400MHz to 43500MHz in operating band n259, and lowest CC is configured based on frequency range of 37000MHz MHz to 37100MHz in operating band n260, frequency separation may be 6500MHz.

Based on examples shown in FIGs. 4a to 4d, frequency separation can be from 200MHz to 6500MHz depending on configured position of PRB(Physical Resource Blocks) in CCs. Rectangles marked with a hatch toward the lower right direction are position for minimum frequency separation and Rectangles marked with grid are position for maximum frequency separation. Herein, n257+n261 may not expected to be configured for inter-band CA because frequency range of n261 is entirely included within frequency range of n257.

The following table shows examples of maximum frequency separation in inter-band CA based on same frequency group.

	Inter-band CA				Intra-band non-contiguous CA
Same freq.group	L+L			H+H
Band combination	n257+n258	n257+n261	n258+n261	n259+n260
Max.freq.separation	5250 MHz	2000 MHz	4100 MHz	6500 MHz	2400MHz

Table 5 shows summary of examples of maximum frequency separation. The values may varies per band combination.

In Table 5, maximum frequency separation between the lower edge of the lowest CC and the upper edge of the highest CC in inter-band CA within same frequency group

For reference, n257+n261 may not expected to be configured for inter-band CA because frequency range of n261 is entirely included within frequency range of n257.

Similar to frequency separation class in intra-band non-contiguous CA, maximum frequency separation which UE can support with CBM needs to be defined per band combination. For example, some UEs can support up to 800MHz for n258+n261 and up to 3GHz for n257+n258. And, other UEs can support up to 1GHz for n258+n261 and up to 4GHz for n257+n258. UE needs to inform the supported maximum frequency separation per band combination to base station (eg. gNB) when the UE supports CBM.

Exemplary proposal 5: Consider maximum frequency separation, which CBM UE can support per band combination, as applicability of CBM capability.

v) Frequency separation class

Conventionally, frequency separation class to inform maximum frequency separation which UE can support is defined only for intra-band non-contiguous CA. Intra-band non-contiguous CA is assumed to be deployed with co-location, which CBM UE can be applicable for.

For CBM UE supporting inter-band CA, new frequency separation class is also needed to inform maximum frequency separation as mentioned in Exemplary proposal 3. Considering maximum frequency separation can be higher than intra-band non-contiguous CA as can be seen in Table 5, new frequency separation class needs to be extended compared to 2400MHz which is defined for intra-band non-contiguous CA. And, new UE capability for frequency separation class is needed to be introduced per band combination.

For IBM UE supporting inter-band CA, frequency separation class was not defined since it is not necessary because of independent beam operation. Conventionally, only one band combination of n261+n260 (L+H) was defined for inter-band DL CA. For L+L or H+H, IBM UE can perform independent beam operation. Therefore frequency separation class is not needed to be defined for inter-band CA based on IBM UE.

Table 6 shows example of frequency separation classes for inter-band CA which can be applicable to CBM UE.

Frequency separation class	Max. allowed frequency separation (F_s,inter)
I	800 MHz
II	1200 MHz
III	1400 MHz
IV	1000 MHz
V	1600 MHz
VI	1800 MHz
VII	2000 MHz
VIII	2200 MHz
IX	2400 MHz
X	2600 MHz
XI	2800 MHz
XII	3000 MHz
XIII	3200 MHz
XIV	3400 MHz
XV	3600 MHz
XVI	3800 MHz
XVII	4000 MHz
XVIII	4200 MHz
XIX
	4400 MHz
XX	4600 MHz
XXI	4800 MHz
XXII	5000 MHz
XXIII	5200 MHz
XXIV	5400 MHz
XXV	5600 MHz
XXVI	5800 MHz
XXVII	6000 MHz
XXVIII	6200 MHz
XXIX	6400 MHz

According to examples of Table 6, k^th frequency separation classes is proposed with frequency separation classe Nk = M + Step * (k-1). Here,

- Nk : k^th frequency separation class.

- M : at least maximum allowed frequency separation (e.g, 800MHz in Table 2.2)

- Step : step between k^th and (k+1)^th frequency separation class (e.g, 200MHz in Table2.2)

- Last frequency separation class is decided by considering highest frequency difference among L+L or H+H band pair (e.g, n259+n260 in Table 5)

- M and Step can be introduced with higher value than example in Table 5 to reduce total number of frequency separation classes.

Exemplary proposal 6: Introduce new UE capability for frequency separation class per band combination for inter-band CA based on CBM.

Exemplary proposal 7: UE should inform the supported maximum frequency separation per band combination to gNB with corresponding frequency separation class if supporting CBM capability for inter-band CA.

vi) IBM feasibility for DL CA between bands in the same frequency group

In UE aspect, UE can support inter-band DL CA within same frequency group based on either IBM or CBM. Therefore, either IBM or CBM can be feasible with UE capability for inter-band DL CA within same frequency group.

Exemplary proposal 8: For inter-band DL CA within same frequency group, either IBM or CBM is applicable.

2. Second Example of the Disclosure of the Present Specification

In Second Example of the Disclosure of the Present Specification, Rx requirements based on the present specification may be explained.

Conventionally, band combination of n261 + n260, which corresponds to different frequency group (e.g, L+H), was only defined for inter-band DL CA. And Rx requirements such as reference sensitivity and EIS spherical coverage were specified by considering relaxation for IBM UE.

- Reference sensitivity relaxation : ΔR_IB,P,n

- EIS spherical coverage relaxation : ΔR_IB,S,n

Inter-band DL CA configuration with same frequency group, L+L or H+H, includes new band combinations.

- L + L : n257 + n258, n257+n261, n258+n261

- H+ H : n259+n260

For reference, n257+n261 is not expected to be configured for inter-band DL CA because n261 is entirely within n257.

If new band combination of L+L or H+H is defined, corresponding reference sensitivity relaxation and EIS spherical coverage relaxation should be defined for IBM UE. Whether to reuse conventional requirements or not needs further discussion for IBM UE.

Exemplary proposal 9: For IBM on inter-band DL CA within same frequency group, whether or not to reuse conventional reference sensitivity relaxation and EIS spherical coverage relaxation should be investigated for corresponding band combination.

For information, conventional requirements of reference sensitivity relaxation and EIS spherical coverage relaxation for inter-band CA are captured as follows (7.3A.2.3 & 7.3A.3.3 in 3GPP TS(Technical Specification) 38.101-2 V17.0.0). And, the relaxations for intra-band CA is also captured (7.3A.2.1 & 7.3A.2.2).

i) Requirements for inter-band CA

Reference sensitivity relaxation for inter-band CA was defined in Section 7.3A.2.3 in 3GPP TS(Technical Specification) 38.101-2 V17.0.0.

The inter-band requirement applies for all active component carriers. The throughput for each component carrier shall be ≥95 % of the maximum throughput of the reference measurement channels as specified in Annexes A.2.3.2 and A.3.3.2 of 3GPP TS 38.101-2 V17.0 (with one sided dynamic OCNG(OFDMA(Orthogonal Frequency Division Multiple Access) Channel Noise Generator) Pattern OP.1 TDD for the DL-signal as described in Annex A.5.2.1 of 3GPP TS 38.101-2 V17.0) with peak reference sensitivity for each carrier specified in section 7.3.2 of 3GPP TS 38.101-2 V17.0, and relaxation ΔR_IB,P,n applied to peak reference sensitivity requirement. ΔR_IB,P,n is specified in Table 7. [The requirement on each component carrier shall be met when the power in the component carrier in the other band is set to its EIS spherical coverage requirement for inter-band CA specified in sub-clause 7.3A.3.3 of 3GPP TS 38.101-2 V17.0.0.

For the combination of intra-band and inter-band carrier aggregation, the intra-band CA relaxation, ΔR_IB, is also applied according to the clause 7.3A.2.1 and 7.3A.2.2 of 3GPP TS 38.101-2 V17.0.0.

NR CA bands	NR band	ΔR_IB,P,n (dB)
CA_n260-n261	n260	[3.5] ±α
CA_n260-n261	n261	[3.5] ±α

Example of Table 7 shows ΔR_IB reference sensitivity relaxation for inter-band CA for power class 3.

A tolerance of ±α can be applied to the ΔR_IB values shown in the table above. For example, α can be 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, ... 2.0 That is, the range of ΔR_IB values proposed in the present specification may include ΔR_IB values to which a tolerance of ±α is applied. Related to ΔR_IB,P,n, IB may mean inter-band. P,n may mean peak reference sensitivity.

ii) EIS spherical coverage for inter-band CA

The inter-band CA requirement applies per operating band, for all active component carriers with UL assigned to one band and one DL component carrier per band. The requirement on each component carrier shall be met when the power in the component carrier in the other band is set to its EIS spherical coverage requirement for inter-band CA specified in this sub-clause.

The inter-band CA spherical coverage requirement will be satisfied if the intersection set of spherical coverage areas exceeds the requirement. Intersection set of spherical coverage areas is defined as a fraction of area of full sphere measured around the UE where both bands meet their defined individual EIS spherical coverage requirements.

The requirement is verified with the test metric of EIS (Link=Beam peak search grids, Meas=Link angle).

The reference measurement channels and throughput criterion shall be as specified in clause 7.3A.2.3 of 3GPP TS 38.101-2 V17.0.0. The requirement shall be met for an uplink transmission using QPSK DFT-s-OFDM waveforms and for uplink transmission bandwidth less than or equal to that specified in clause 7.3.2 of 3GPP TS 38.101-2 V17.0.0.

Unless otherwise specified, the minimum requirements for reference sensitivity shall be verified with the network signalling value NS_200 (Table 6.2.3.1-1 of 3GPP TS 38.101-2 V17.0.0) configured.

The required spherical coverage EIS for each band is given in clause 7.3.4 of 3GPP TS 38.101-2 V17.0.0 and modified by ΔR_IB,S,n. The value of ΔR_IB,S,n is defined in Table 8.

NR CA bands	NR band	ΔR_IB,S,n (dB)
CA_n260-n261	n260	[3.5] ±α
CA_n260-n261	n261	[3.5] ±α

Table 8 shows example of ΔR_IB,S,n EIS spherical coverage requirement relaxation for inter-band CA for power class 3. Related to ΔR_IB,S,n, IB may mean inter-band. S,n may mean Spherical coverage EIS.

A tolerance of ±α can be applied to the ΔR_IB values shown in the table above. For example, α can be 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, ... 2.0 That is, the range of ΔR_IB values proposed in the present specification may include ΔR_IB values to which a tolerance of ±α is applied.

iii) Requirements for Intra-band contiguous CA

For each component carrier in the intra-band contiguous carrier aggregation, the throughput in QPSK R = 1/3 shall be ≥ 95 % of the maximum throughput of the reference measurement channels as specified in Annexes A.2.3.2 and A.3.3.2 of 3GPP TS 38.101-2 V17.0.0 (with one sided dynamic OCNG Pattern OP.1 TDD for the DL-signal as described in Annex A.5.2.1 of 3GPP TS 38.101-2 V17.0.0) with peak reference sensitivity values determined from clause 7.3.2 of 3GPP TS 38.101-2 V17.0.0, and relaxation applied to peak reference sensitivity requirement as specified in Table 9.

Aggregated Channel BW 'BW_Channel _{_CA}' (MHz)	(dB)
BW_Channel _{_CA} ≤800	0.0
800 < BW_Channel _{_CA} ≤1200	0.5

Table 9 shows example of EIS Relaxation for CA operation by aggregated channel bandwidth.iv) Requirements for Intra-band non-contiguous CA

For each component carrier in the intra-band non-contiguous carrier aggregation, the throughput shall be ≥ 95 % of the maximum throughput of the reference measurement channels as specified in Annexes A.2.3.2 and A.3.3.2 of 3GPP TS 38.101-2 V17.0.0 (with one sided dynamic OCNG Pattern OP.1 TDD for the DL-signal as described in Annex A.5.2.1) with peak reference sensitivity values determined from clause 7.3.2 of 3GPP TS 38.101-2 V17.0.0. Relaxation applied to peak reference sensitivity requirement as specified in Table 10. The configured downlink spectrum is defined as the frequency band from the lowest edge of the lowest CC to the upper edge of the highest CC of all UL and DL configured CCs.

Configured DL spectrum (MHz)	(dB)
≤800	0.0
> 800 and ≤1400	0.5
> 1400 and ≤2400	1.5

Table 10 shows example of EIS Relaxation for CA operation.

v) Requirements for Inter-band CA supporting IBM operation

For IBM UE (eg. UE supporting communication based on IBM), with L+L or H+H band pair(or combination) in inter-band CA, regarding the difference between band pair(or combination), reference sensitivity relaxation and EIS spherical coverage relaxation may be decided as the following.

Example shown in Fig. 5 and Example shown in Fig. 6 are proposed for requirements of reference sensitivity relaxation and EIS spherical coverage relaxation for L+L or H+H for power class 3.

FIG. 5 is an example showing reference sensitivity relaxation for inter-band CA based on IBM according to the present disclosure.

FIG. 5 shows an example of ΔR_IB reference sensitivity relaxation for inter-band CA for power class 3 supporting IBM.

FIG. 6 is an example showing EIS spherical coverage requirement relaxation for inter-band CA based on IBM according to the present disclosure.

FIG. 6 shows an example of ΔR_IB,S,n EIS spherical coverage requirement relaxation for inter-band CA for power class 3 supporting IBM.

For example, in examples of FIG. 5 and FIG. 6, X1 may be proposed to be 1.5 + △dB. X2 may be proposed to be 2.0 +△ dB. X3 may be proposed to be 2.5+△ dB. The △ dB can be adjusted within ± 1dB

Exemplary proposal 10a: For IBM on inter-band DL CA within same frequency group, define reference sensitivity relaxation and EIS spherical coverage relaxation as FIG. 5 and FIG. 6. Here, X1 is proposed with 1.5 + β dB. X2 is proposed with 2.0 +β dB. X3 is proposed with 2.5+β dB. The △ dB can be adjusted within ± 1dB.

As another example, same values of reference sensitivity relaxation and EIS spherical coverage relaxation may be proposed for all band pairs in inter-band CA.

Exemplary proposal 10b: For IBM on inter-band DL CA within same frequency group, define reference sensitivity relaxation and EIS spherical coverage relaxation as FIG. 5 and FIG. 6. Here, X1 = X2 = X3 ≤3.5.

vi) Requirements for Inter-band CA supporting CBM operation

CBM feasibility for DL CA between bands in the same frequency group is explained.

For CBM UE, reference sensitivity relaxation needs to be defined if maximum frequency separation per band combination supported by CBM UE is defined. For example, maximum frequency separation per band combination supported by CBM UE may be defined as applicability of CBM capability with frequency separation classes proposed above. Regarding higher maximum frequency separation up to 6400MHz, the extended maximum frequency separation needs to be considered for reference sensitivity relaxation.

Exemplary proposal 10c: For CBM on inter-band DL CA within same frequency group, define reference sensitivity relaxation and EIS spherical coverage relaxation as FIG. 5 and FIG. 6. Here, X1 is proposed with 1.5 + β dB. X2 is proposed with 2.0 +β dB. X3 is proposed with 2.5+β dB. The △ dB can be adjusted within ± 1dB.

Exemplary proposal 10d: For CBM on inter-band DL CA within same frequency group, define reference sensitivity relaxation and EIS spherical coverage relaxation as FIG. 5 and FIG. 6. Here, X1 = X2 = X3 ≤3.5.

FIG. 7 is an example showing reference sensitivity relaxation for inter-band CA based on CBM according to the present disclosure.

FIG. 7 shows an example of Reference sensitivity relaxation for inter-band CA for power class 3 supporting CBM.

A tolerance of ±α can be applied to the △R_IB values shown in the table above. For example, α can be 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, ... 2.0 That is, the range of △R_IB values proposed in the present specification may include △R_IB values to which a tolerance of ±α is applied.

FIG. 7 shows one example. Up to 2400MHz, conventional reference sensitivity relaxation of intra-band non-contiguous CA can be reused.

Configured DL frequency separation may be defined as the frequency band from the lower edge of the lowest CC to the upper edge of the highest CC of configured DL CCs. For example, Y1 is proposed to be a value with 1.5 + △dB. Y2 is proposed to be a value with 2.0+△dB. Y3 is proposed to be a value in range of 2.5+△dB. Y4 is proposed to be a value in range of 2.5+△dB. The △ dB can be adjusted within ± 1dB.

Exemplary proposal 11: For CBM on inter-band DL CA within same frequency group, define reference sensitivity relaxation as FIG. 7. Here, Y1 is proposed with 1.5 + βdB. Y2 is proposed with 2.0 +β dB. Y3 and Y4 are proposed with 2.5+β dB. The △ dB can be adjusted within ± 1dB.

FIG. 8 is an example showing EIS spherical coverage requirement relaxation for inter-band CA based on CBM according to the present disclosure.

FIG. 8 shows an example of EIS spherical coverage relaxation for inter-band CA for power class 3 supporting CBM.

A tolerance of ±α can be applied to the △dR_IB values shown in the table above. For example, α can be 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, ... 2.0 That is, the range of △dR_IB values proposed in the present specification may include △dR_IB values to which a tolerance of ±α is applied.

For CBM UE, when EIS spherical coverage requirement is defined, the relaxation due to maximum frequency separation per band combination supported by CBM UE should be considered. FIG. 8 shows one example of the EIS spherical coverage relaxation.

Up to 2400MHz, conventional EIS spherical coverage relaxation of intra-band non-contiguous CA can be reused. Configured DL frequency separation should be defined as the frequency band from the lower edge of the lowest CC to the upper edge of the highest CC of configured DL CCs.

For example, Y1 is proposed with one value with 1.5 + △dB. Y2 is proposed with one value with 2.0+△dB. Y3 is proposed with one value in range of 2.5+△dB. Y4 is proposed with one value in range of 2.5+△dB. The △ dB can be adjusted within ± 1dB.

Exemplary proposal 12: For CBM on inter-band DL CA within same frequency group, define EIS Spherical coverage relaxation as FIG. 8. Here, Y1 is proposed with 1.5 + β dB. Y2 is proposed with 2.0 +β dB. Y3 and Y4 are proposed with 2.5+β dB. The △ dB can be adjusted within ± 1dB.

vii) Consideration for UE capability related to simultaneous transmission and reception.

CBM/IBM vs simultaneousRxTxInterBandCA may be explained.

Conventionally, UE capability of supporting simultaneous transmission and reception was defined based on parameter called simultaneousRxTxInterBandCA. The simultaneousRxTxInterBandCA is applicable for different UL-DL configuration.

This capability is feasible for IBM. However, this capability is not clear to be feasible for CBM. If CBM UE supporting L+L or H+H, same UL-DL configuration is assumed as baseline. This means that simultaneousRxTxInterBandCA is not applicable for CBM UE supporting L+L or H+H.

Exemplary proposal 12: For CBM UE on inter-band CA within same frequency group, simultaneous Rx / Tx capability may not be applied.

3. Examples of operation according to the Disclosure of the Present Specification

Examples of operation performed by UE and/or network (eg. gNB, base station, serving cell) are explained. The following Examples of operation are based on the first example of the Disclosure of the Present Specification and/or the second example of Disclosure of the Present Specification.

The UE may support IBM operation, CBM operation, or both of IBM operation and CBM operation. The UE may support FR2 inter-band DL CA. The UE may receive information including band combination for FR2 inter-band CA. Hereinafter, the band combination for FR2 inter-band may also be called as "CA band combination". The UE may determine whether the CA band combination is same frequency group or different frequency group.

The following operations may be performed for 3 cases, which includes a first case that the UE only supports CBM, a second case that the UE only supports IBM, a third case that the UE supports both IBM and CBM.

Examples of operations are explained below.

1) A: If the UE only supports CBM,

1-i) If the UE determines that the CA band combination is the same frequency group,

1-i-a) The UE may transmit capability information to the network. For example, the UE may transmit capability information to a serving cell (or gNB, or base station). The capability information may include information that the UE supports CBM operation and information that capability of the supported maximum frequency separation per band combination for CBM. That is, the UE may inform ‘CBM capability' and ‘capability of the supported maximum frequency separation per band combination for CBM' to the network.

The network (eg. a serving cell, or gNB, or base station) may receive capability information from the UE. The network (eg. a serving cell, or gNB, or base station) may determine how to configure CA for the UE, based on the capability information (eg. information that the UE supports CBM operation and information that capability of the supported maximum frequency separation per band combination for CBM).

For example, the network may determine whether to configure DL CA for the UE based on capability of the supported maximum frequency separation per band combination for CBM, when the UE transmitted CBM capability.

For example, based on that the network identifies capability of the supported maximum frequency separation (e.g. Z) per band combination' of the UE,

- The network may configure DL CA for the UE, if frequency separation between DL CA CCs is equal to or smaller than 'Z'. The network may transmit information related to CA, which includes that DL CA is configured for the UE. Then, the UE may perform measurement needed for DL CA and may report measurement result to the network. The network may manage CA mobility. Furthermore, the UE may apply requirements proposed in the Second example of the disclosure for performing communication with the network based on inter-band CA. The UE performs communication with the network based on inter-band CA by using CBM operation.

- The network may not configure DL CA for the UE, if frequency separation between DL CA CCs is bigger than 'Z'. The network may transmit information related to CA, which includes that DL CA is not configured for the UE. Then, the UE may perform measurement based on single CC and may report measurement result to the network. The network may manage mobility. The UE performs communication with the network based on single CC.

1-ii) If the UE determines that the CA band combination is the different frequency group,

1-ii-a) The UE may transmit capability information to the network. For example, the UE may transmit capability information to a serving cell (or gNB, or base station). The capability information may include information that the UE supports CBM operation. That is, the UE may inform ‘CBM capability' to the network.

The network (eg. a serving cell, or gNB, or base station) may receive capability information from the UE. The network (eg. a serving cell, or gNB, or base station) may configure CA for the UE. For example, the network may configure CA for the UE only for co-located deployment, or the network may configure CA for the UE with performance degradation. The network may transmit information related to CA, which includes that DL CA is configured for the UE. Then, the UE may perform measurement needed for DL CA and may report measurement result to the network. The network may manage CA mobility. Furthermore, the UE may apply requirements proposed in the Second example of the disclosure for performing communication with the network based on inter-band CA. The UE performs communication with the network based on inter-band CA by using CBM operation.

2) B: If the UE only supports IBM,

2-i) If the UE determines that the CA band combination is the same frequency group,

2-i-a) The UE may transmit capability information to the network. For example, the UE may transmit capability information to a serving cell (or gNB, or base station). The capability information may include information that the UE supports IBM operation. That is, the UE may inform ‘IBM capability' to the network.

The network (eg. a serving cell, or gNB, or base station) may receive capability information from the UE. The network (eg. a serving cell, or gNB, or base station) may configure CA for the UE. The network may transmit information related to CA, which includes that DL CA is configured for the UE. Then, the UE may perform measurement needed for DL CA and may report measurement result to the network. The network may manage CA mobility. Furthermore, the UE may apply requirements proposed in the Second example of the disclosure for performing communication with the network based on inter-band CA. The UE performs communication with the network based on inter-band CA by using IBM operation.

2-ii) If the UE determines that the CA band combination is the different frequency group,

2-ii-a) The UE may transmit capability information to the network. For example, the UE may transmit capability information to a serving cell (or gNB, or base station). The capability information may include information that the UE supports IBM operation. That is, the UE may inform ‘IBM capability' to the network.

3) C: If the UE supports both CBM and IBM,

3-i) If the UE determines that the CA band combination is the same frequency group,

3-i-a) The UE may transmit capability information to the network. For example, the UE may transmit capability information to a serving cell (or gNB, or base station). The capability information may include information that the UE supports both IBM operation and CBM operation and information that capability of the supported maximum frequency separation per band combination for CBM. That is, the UE may inform ‘Both(CBM&IBM) capability' and ‘capability of the supported maximum frequency separation per band combination for CBM' to the network.

The network (eg. a serving cell, or gNB, or base station) may receive capability information from the UE. The network may configure one of CBM or IBM to the UE. For example, the network may configure IBM to the UE when co-located deployment is applied. For another example, the network may configure CBM to the UE when non-co-located deployment is applied. The network may transmit information related to CA including that which one between CBM or IBM is configured to the UE.

3-i-a-1) If the network configure CBM to the UE,

The network (eg. a serving cell, or gNB, or base station) may determine how to configure CA for the UE, based on the capability information (eg. information that the UE supports both IBM operation and CBM operation and information that capability of the supported maximum frequency separation per band combination for CBM).

For example, the network may determine whether to configure DL CA for the UE based on capability of the supported maximum frequency separation per band combination for CBM.

For example, based on that the network identifies 'capability of the supported maximum frequency separation (e.g. Z) per band combination' of the UE,

- The network may configure DL CA for the UE and may configure IBM to the UE, if frequency separation between DL CA CCs is bigger than 'Z'. The network may transmit information related to CA, which includes that DL CA is configured for the UE. Then, the UE may perform measurement needed for DL CA and may report measurement result to the network. The network may manage CA mobility. Furthermore, the UE may apply requirements proposed in the Second example of the disclosure for performing communication with the network based on inter-band CA. The UE performs communication with the network based on inter-band CA by using IBM operation.

3-i-a-2) If the network configure IBM to the UE,

The network (eg. a serving cell, or gNB, or base station) may configure CA for the UE. The network may transmit information related to CA, which includes that DL CA is configured for the UE. Then, the UE may perform measurement needed for DL CA and may report measurement result to the network. The network may manage CA mobility. Furthermore, the UE may apply requirements proposed in the Second example of the disclosure for performing communication with the network based on inter-band CA. The UE performs communication with the network based on inter-band CA by using IBM operation.

3-ii) If the UE determines that the CA band combination is the different frequency group,

3-ii-a) The UE may transmit capability information to the network. For example, the UE may transmit capability information to a serving cell (or gNB, or base station). The capability information may include information that the UE supports both IBM operation and CBM operation. That is, the UE may inform ‘Both(CBM&IBM) capability'.

The network (eg. a serving cell, or gNB, or base station) may receive capability information from the UE. The network may configure one of CBM or IBM to the UE. For example, the network may configure IBM to the UE when co-located deployment is applied. For another example, the network may configure CBM to the UE when non-co-located deployment is applied.

3-ii-a-1) If the network configure CBM to the UE,

The network (eg. a serving cell, or gNB, or base station) may configure CA for the UE. The network may transmit information related to CA, which includes that DL CA is configured for the UE. Then, the UE may perform measurement needed for DL CA and may report measurement result to the network. The network may manage CA mobility. Furthermore, the UE may apply requirements proposed in the Second example of the disclosure for performing communication with the network based on inter-band CA. The UE performs communication with the network based on inter-band CA by using CBM operation.

3-ii-a-2) If the network configure IBM to the UE,

FIG. 9 illustrates an example of operations of a UE according to the present disclosure.

FIG. 9 shows an example of operations of the UE. UE may perform operations described in the present specification, even if they are not shown in FIG.9. Herein, a network may be gNB, base station, serving cell, etc.

The UE may perform operations explained above with various examples (including 3 cases, which are "1) A: If the UE only supports CBM" "2) B: If the UE only supports IBM", and 3) C: If the UE only supports both CBM and IBM").

In step S901, the UE may transmit capability information to a network. Capability information may include information that the UE supports IBM, CBM or both IBM and CBM. Capability information may further include information that capability of the supported maximum frequency separation per band combination for CBM, if the UE supports CBM or both IBM and CBM.

Before step S901 is performed, the UE may receive information related to operating band combination for inter-band CA from the network. The UE may support IBM operation, CBM operation, or both of IBM operation and CBM operation. The UE may support FR2 inter-band DL CA. The UE may receive information including band combination for FR2 inter-band CA. Hereinafter, the band combination for FR2 inter-band may also be called as "CA band combination". The UE may determine whether the CA band combination is same frequency group or different frequency group.

If the UE only supports CBM and the UE determines that the CA band combination is the same frequency group, the capability information may include information that the UE supports CBM operation and information that capability of the supported maximum frequency separation per band combination for CBM.

If the UE only supports CBM and the UE determines that the CA band combination is the different frequency group, the capability information may include information that the UE supports CBM operation.

If the UE only supports CBM, the capability information may include information that the UE supports IBM operation.

If the UE supports both CBM and IBM and the UE determines that the CA band combination is the same frequency group, the capability information may include information that the UE supports both IBM operation and CBM operation and information that capability of the supported maximum frequency separation per band combination for CBM.

If the UE supports both CBM and IBM and the UE determines that the CA band combination is the different frequency group, the capability information may include information that the UE supports both IBM operation and CBM operation.

In step S902, the UE may receive information related to CA. For example, as explained above with various examples (including 3 cases, which are "1) A: If the UE only supports CBM" "2) B: If the UE only supports IBM", and 3) C: If the UE only supports both CBM and IBM"), the information related to CA may be received from the network.

For example, the information related to CA may include information that whether DL CA is configured or single CC is configured. The information related to CA may include whether CBM or IBM is configured for the UE, when the UE transmits capability information including capability that the UE supports both CBM and IBM.

The UE may perform communication with the network based on CBM(or IBM) and the information related to CA. The UE may perform measurement needed for DL CA and may report measurement result to the network, when the information related to CA includes information that DL CA is configured. The UE may perform measurement based on single CC and may report measurement result to the network.

The UE may apply requirements proposed in the Second example of the disclosure for performing communication with the network based on inter-band CA. For example, the UE may apply reference sensitivity relaxation and/or EIS spherical coverage relaxation for receiving signal from the network.

FIG. 10 illustrates an example of operations of a UE and a network according to the present disclosure.

FIG. 10 shows an example of operations of the UE and the network. UE and the network may perform operations described in the present specification, even if they are not shown in FIG.10. Herein, a network may be gNB, base station, serving cell, etc.

The UE and the network(e.g. serving cell) may perform operations explained above with various examples (including 3 cases, which are "1) A: If the UE only supports CBM" "2) B: If the UE only supports IBM", and 3) C: If the UE only supports both CBM and IBM").

In step S1001, the UE may transmit capability information to a network. Capability information may include information that the UE supports IBM, CBM or both IBM and CBM. Capability information may further include information that capability of the supported maximum frequency separation per band combination for CBM, if the UE supports CBM or both IBM and CBM.

Before step S1001 is performed, the UE may receive information related to operating band combination for inter-band CA from the network. The UE may support IBM operation, CBM operation, or both of IBM operation and CBM operation. The UE may support FR2 inter-band DL CA. The UE may receive information including band combination for FR2 inter-band CA. Hereinafter, the band combination for FR2 inter-band may also be called as "CA band combination". The UE may determine whether the CA band combination is same frequency group or different frequency group.

In step S1002, the serving cell may determine CA configuration based on the capability information and operating band combination for CA.

For example, the serving cell may determine to configure IBM operation or CBM operation to the UE, based on that the capability information including capability that the UE supports both IBM and CBM.

For example, the serving cell may determine to configure DL CC regardless of the operating band combination for CA, based on that the UE only supports IBM or the serving cell configured IBM to the UE.

For example, the network may configure DL CA for the UE, if frequency separation between DL CA CCs is equal to or smaller than 'Z', based on that the UE only supports CBM or the serving cell configured CBM to the UE. The network may transmit information related to CA, which includes that DL CA is configured for the UE. The network may not configure DL CA for the UE, if frequency separation between DL CA CCs is bigger than 'Z' , based on that the UE only supports CBM or the serving cell configured CBM to the UE.. The network may transmit information related to CA, which includes that DL CA is not configured for the UE.

In step S1003, the UE may receive information related to CA. For example, as explained above with various examples (including 3 cases, which are "1) A: If the UE only supports CBM" "2) B: If the UE only supports IBM", and 3) C: If the UE only supports both CBM and IBM"), the information related to CA may be received from the network.

Hereinafter, an apparatus(for example, UE) in a wireless communication system, according to some embodiments of the present disclosure, will be described.

For example, the apparatus may include at least one processor, at least one transceiver, and at least one memory.

For example, the at least one processor may be configured to be coupled operably with the at least one memory and the at least one transceiver.

For example, the processor may be configured to perform operations explained in various examples of the present specification. For example, the processor may be configure to perform operations including: transmitting capability information including information whether the UE supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA; receiving information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and performing communication with the base station based on the information related to the FR2 inter-band CA.

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

For example, the processor may be configured to perform operations including: generating capability information including information whether the wireless communication device supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA; identifying information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and performing communication with the base station based on the information related to the FR2 inter-band CA.

Hereinafter, a non-transitory computer-readable medium has stored thereon a plurality of instructions in a wireless communication system, according to some embodiments of the present disclosure, will be described.

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

Some example of storage medium is coupled to the processor such that the processor can read information from the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. For other example, the processor and the storage medium may reside as discrete components.

The computer-readable medium may include a tangible and non-transitory computer-readable storage medium.

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

In addition, the method described herein may be realized at least in part by a computer-readable communication medium that carries or communicates code in the form of instructions or data structures and that can be accessed, read, and/or executed by a computer.

According to some embodiment of the present disclosure, a non-transitory computer-readable medium has stored thereon a plurality of instructions. The stored a plurality of instructions may be executed by a processor of a UE to perform operations including: generating capability information including information whether the wireless communication device supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA; identifying information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and performing communication with the base station based on the information related to the FR2 inter-band CA

Hereinafter, an apparatus(for example, base station) in a wireless communication system, according to some embodiments of the present disclosure, will be described.

For example, the processor may be configured to perform operations explained in various examples of the present specification. For example, the processor may be configure to perform operations including: receiving capability information including information whether a UE supports CBM, or IBM, or both CBM and IBM for FR 2 inter-band CA form the UE; determining information related to the FR2, based on the capability information and/or operating band combination for the FR2 inter-band CA; and transmitting information related to the FR2 inter-band CA, which is configured based on the capability information, to the UE.

Advantageous effects which can be obtained through specific embodiments of the present disclosure. For example, CBM operation of the UE may be considered for communication based on FR2 inter-band CA. For example, capability information considering CBM and IBM is defined. For example, requirements for FR2 inter-band CA considering IBM and/or CBM are defined. For example, communication based on FR2 inter-band CA may be performed efficiently and/or precisely.

In the above exemplary systems, although the methods have been described on the basis of the flowcharts using a series of the steps or blocks, the present disclosure is not limited to the sequence of the steps, and some of the steps may be performed at different sequences from the remaining steps or may be performed simultaneously with the remaining steps. Furthermore, those skilled in the art will understand that the steps shown in the flowcharts are not exclusive and may include other steps or one or more steps of the flowcharts may be deleted without affecting the scope of the present disclosure.

Claims in the present disclosure can be combined in a various way. For instance, technical features in method claims of the present disclosure can be combined to be implemented or performed in an apparatus, and technical features in apparatus claims can be combined to be implemented or performed in a method. Further, technical features in method claim(s) and apparatus claim(s) can be combined to be implemented or performed in an apparatus. Further, technical features in method claim(s) and apparatus claim(s) can be combined to be implemented or performed in a method. Other implementations are within the scope of the following claims.

Claims

A method for performing communication, the method performed by a User Equipment (UE) and comprising:

transmitting capability information including information whether the UE supports CBM(Common Beam Management), or IBM(Independent Beam Management), or both CBM and IBM for Frequency Range (FR) 2 inter-band Carrier Aggregation (CA),

wherein the capability information further includes information related to maximum frequency separation per operating band combination, based on that the UE supports CBM or both CBM and IBM;

receiving information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and

performing communication with the base station based on the information related to the FR2 inter-band CA.
The method of claim 1, further comprising:

receiving information related to operating band combination to be used for the FR 2 inter-band CA; and

determining whether the operating band combination is same frequency group or different frequency group.
The method of claim 1,

wherein the information related to the FR2 inter-band CA includes information that downlink CA configured for the UE, based on that the capability information includes information that the UE supports IBM.
The method of claim 1,

wherein the information related to the FR2 inter-band CA includes whether the CBM or the IBM is configured for the UE, based on that the capability information includes information that the UE supports both the CBM and the IBM.
The method of claim 1,

wherein the information related to the FR2 inter-band CA includes information that downlink CA is configured for the UE, based on that the capability information includes information that the UE supports CBM or both CBM and IBM, and based on that frequency separation of downlink CA Component Carriers (CCs) in operating band combination for the FR2 inter-band CA is equal to or smaller than the maximum frequency separation.
The method of claim 1,

wherein the information related to the FR2 inter-band CA includes information that downlink CA is not configured for the UE, based on that the capability information includes information that the UE supports CBM or both CBM and IBM, and based on that frequency separation of downlink CA Component Carriers (CCs) in operating band combination for the FR2 inter-band CA is bigger than the maximum frequency separation.
The method of claim 1, further comprising:

applying reference sensitivity relaxation value and/or Effective Isotropic Sensitivity (EIS) spherical coverage relaxation value for receiving signal from the base station.
The method of claim 7,

wherein the reference sensitivity relaxation value and/or EIS spherical coverage relaxation is predetermined based on operating band combination for the FR2 inter-band CA, based on that the UE is configured to use IBM or based on that the UE is configured to use CBM.
The method of claim 7,

wherein the reference sensitivity relaxation value and/or EIS spherical coverage relaxation is predetermined based on frequency separation of downlink CA Component Carriers (CCs) in operating band combination for the FR2 inter-band CA.
A method for performing communication, the method performed by a base station and comprising:

receiving capability information including information whether a User Equipment (UE) supports CBM(Common Beam Management), or IBM(Independent Beam Management), or both CBM and IBM for Frequency Range (FR) 2 inter-band Carrier Aggregation (CA) form the UE,

wherein the capability information further includes information related to maximum frequency separation per operating band combination, based on that the UE supports CBM or both CBM and IBM;

determining information related to the FR2, based on the capability information and/or operating band combination for the FR2 inter-band CA; and

transmitting information related to the FR2 inter-band CA, which is configured based on the capability information, to the UE.
The method of claim 10, further comprising:

transmitting information related to operating band combination to be used for the FR 2 inter-band CA.
The method of claim 10,

wherein the information related to the FR2 inter-band CA includes information that downlink CA configured for the UE, based on that the capability information includes information that the UE supports IBM.
The method of claim 10, further comprising:

determining whether to configure the CBM or the IBM to the UE, based on that the capability information includes information that the UE supports both the CBM and the IBM,

wherein the information related to the FR2 inter-band CA includes whether the CBM or the IBM is configured for the UE.
The method of claim 10,

wherein the information related to the FR2 inter-band CA includes information that downlink CA is configured for the UE, based on that the capability information includes information that the UE supports CBM or both CBM and IBM, and based on that frequency separation of downlink CA Component Carriers (CCs) in operating band combination for the FR2 inter-band CA is equal to or smaller than the maximum frequency separation.
The method of claim 10,

wherein the information related to the FR2 inter-band CA includes information that downlink CA is not configured for the UE, based on that the capability information includes information that the UE supports CBM or both CBM and IBM, and based on that frequency separation of downlink CA Component Carriers (CCs) in operating band combination for the FR2 inter-band CA is bigger than the maximum frequency separation.
A User Equipment (UE) in a wireless communication system, the UE comprising:

at least one transceiver;

at least one processor; and

at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:

transmitting capability information including information whether the UE supports CBM(Common Beam Management), or IBM(Independent Beam Management), or both CBM and IBM for Frequency Range (FR) 2 inter-band Carrier Aggregation (CA),

wherein the capability information further includes information related to maximum frequency separation per operating band combination, based on that the UE supports CBM or both CBM and IBM;

receiving information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and

performing communication with the base station based on the information related to the FR2 inter-band CA.
A wireless communication device operating in a wireless communication system, the wireless communication device comprising:

at least processor; and

at least one computer memory operably connectable to the at least one processor,

wherein the at least one processor is configured to perform operations comprising:

generating capability information including information whether, the wireless communication device supports CBM(Common Beam Management), or IBM(Independent Beam Management), or both CBM and IBM for Frequency Range (FR) 2 inter-band Carrier Aggregation (CA),

wherein the capability information further includes information related to maximum frequency separation per operating band combination, based on that the wireless communication device supports CBM or both CBM and IBM;

identifying information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and

performing communication with the base station based on the information related to the FR2 inter-band CA.
At least one computer readable medium (CRM) storing instructions that, based on being executed by at least one processor, perform operations comprising:

generating capability information including information whether, the wireless communication device supports CBM(Common Beam Management), or IBM(Independent Beam Management), or both CBM and IBM for Frequency Range (FR) 2 inter-band Carrier Aggregation (CA),

wherein the capability information further includes information related to maximum frequency separation per operating band combination, based on that the wireless communication device supports CBM or both CBM and IBM;

identifying information related to the FR2 inter-band CA, which is configured based on the capability information, from a base station; and

performing communication with the base station based on the information related to the FR2 inter-band CA.
A base station in a wireless communication system, the base station comprising:

at least one transceiver;

at least one processor; and

at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:

receiving capability information including information whether a User Equipment (UE) supports CBM(Common Beam Management), or IBM(Independent Beam Management), or both CBM and IBM for Frequency Range (FR) 2 inter-band Carrier Aggregation (CA) form the UE,

wherein the capability information further includes information related to maximum frequency separation per operating band combination, based on that the UE supports CBM or both CBM and IBM;

determining information related to the FR2, based on the capability information and/or operating band combination for the FR2 inter-band CA; and

transmitting information related to the FR2 inter-band CA, which is configured based on the capability information, to the UE.