MPR method

Abstract

One disclosure of the present specification provides a method by which a UE communicates. The method comprises steps in which a UE: receives an indication from a network; determines a new MPR for an extended transmission bandwidth; and transmits a signal.

Description

MPR method

[0001] This specification relates to mobile communication.

[0002] 3GPP (3rd generation partnership project) LTE (long-term evolution) is a technology designed to enable high-speed packet communication. Many methods have been proposed to achieve LTE goals, such as reducing costs for users and operators, improving service quality, expanding coverage, and increasing system capacity. As high-level requirements, 3GPP LTE demands reduced cost per bit, improved service availability, flexible use of frequency bands, a simple structure, open interfaces, and appropriate power consumption of terminals.

[0003] Work has begun at the ITU (International Telecommunication Union) and 3GPP to develop requirements and specifications for new radio (NR) systems. 3GPP must identify and develop the technical components necessary to successfully standardize NR in a timely manner, satisfying both urgent market demands and the longer-term requirements presented by the ITU-R (ITU Radio Communication Sector) IMT (International Mobile Telecommunications)-2020 process. Furthermore, NR must be able to utilize any spectrum band up to at least 100 GHz so that it can be used for wireless communication even in the distant future.

[0004] NR targets a single technical framework that covers all deployment scenarios, usage scenarios, and requirements, including eMBB (enhanced mobile broadband), mMTC (massive machine type communications), and URLLC (ultra-reliable and low latency communications). NR must inherently be forward compatible.

[0005] If no channel is allocated in an adjacent band, the MPR-related RB area is extended.

[0006] FIG. 1 shows an example of a communication system to which the implementation of the present specification is applied.

[0007] FIG. 2 shows an example of a wireless device to which the implementation of the present specification applies.

[0008] FIG. 3 shows an example of a UE to which the implementation of the present specification applies.

[0009] Figure 4 is a figure showing an example of a communication structure that can be provided in a 6G system.

[0010] Figure 5 shows an example of an electromagnetic spectrum.

[0011] Figure 6 shows a wireless communication system.

[0012] Figure 7 shows the structure of a wireless frame used in NR.

[0013] Figure 8 shows an example of a subframe type used in NR.

[0014] Figures 9 and 10 show examples of methods for limiting the transmission power of a UE.

[0015] Figure 11 shows an example of an imbalance between uplink coverage and downlink coverage.

[0016] Figure 12 shows examples of the inner region and the outer region.

[0017] FIG. 13 illustrates a first example according to the disclosure of the present specification.

[0018] FIG. 14 illustrates a second example according to the disclosure of the present specification.

[0019] FIG. 15 illustrates a third example according to the disclosure of the present specification.

[0020] FIG. 16 illustrates a fourth example according to the disclosure of the present specification.

[0021] FIG. 17 illustrates a fifth example according to the disclosure of the present specification.

[0022] Figure 18 shows an example of the RB area in the existing terminal transmission bandwidth.

[0023] FIG. 19 shows an example of an extended RB area in an extended terminal transmission bandwidth according to the disclosure of the present specification.

[0024] FIGS. 20 and FIGS. 21 illustrate examples of capability information of a terminal according to the disclosure of the present specification.

[0025] FIG. 22 shows an example of a flowchart according to the disclosure of the present specification.

[0026] FIG. 23 shows an example of an edge region according to the disclosure of the present specification.

[0027] FIG. 24 illustrates an example of multi-carrier operation according to the disclosure of the present specification.

[0028] FIG. 25 illustrates the procedure of the UE for the disclosure of the present specification.

[0029] FIG. 26 illustrates the procedure of a network for the disclosure of the present specification.

[0030] The following techniques, devices, and systems may be applied to various wireless multiple access systems. Examples of multiple access systems include code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and multicarrier frequency division multiple access (MC-FDMA) systems. CDMA may be implemented through wireless technologies such as universal terrestrial radio access (UTRA) or CDMA2000. TDMA may be implemented through wireless technologies such as global system for mobile communications (GSM), general packet radio service (GPRS), or enhanced data rates for GSM evolution (EDGE). OFDMA can be implemented through wireless technologies such as IEEE (Institute of Electrical and Electronics Engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or E-UTRA (evolved UTRA). UTRA is part of UMTS (universal mobile telecommunications system). 3GPP (3rd generation partnership project) LTE (long-term evolution) is part of E-UMTS (evolved UMTS) using E-UTRA.3GPP LTE uses OFDMA in the downlink (DL) and SC-FDMA in the uplink (UL). Evolutions of 3GPP LTE include LTE-A (advanced), LTE-A Pro, and / or 5G NR (new radio).

[0031] For convenience of explanation, the implementation of this specification is described primarily in relation to 3GPP-based wireless communication systems. However, the technical characteristics of this specification are not limited thereto. For example, the following detailed description is provided based on a mobile communication system corresponding to a 3GPP-based wireless communication system, but aspects of this specification that are not limited to 3GPP-based wireless communication systems may be applied to other mobile communication systems.

[0032] For terms and technologies used in this specification that are not specifically described, reference may be made to wireless communication standard documents published prior to this specification.

[0033] In this specification, "A or B" may mean "only A," "only B," or "both A and B." Alternatively, in this specification, "A or B" may be interpreted as "A and / or B." For example, in this specification, "A, B or C" may mean "only A," "only B," "only C," or "any combination of A, B and C."

[0034] A slash ( / ) or a comma used in this specification 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."

[0035] In this specification, "at least one of A and B" may mean "only A," "only B," or "both A and B." Additionally, in this specification, the expressions "at least one of A or B" or "at least one of A and / or B" may be interpreted as synonymous with "at least one of A and B."

[0036] Additionally, in this specification, "at least one of A, B and C" may mean "only A," "only B," "only C," or "any combination of A, B and C." Furthermore, "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."

[0037] Additionally, parentheses used in this specification may mean "for example." Specifically, when indicated as "control information (PDCCH)," "PDCCH" may be proposed as an example of "control information." In other words, "control information" in this specification is not limited to "PDCCH," and "PDCCH" may be proposed as an example of "control information." Furthermore, even when indicated as "control information (i.e., PDCCH)," "PDCCH" may be proposed as an example of "control information."

[0038] Technical features described individually within a single drawing in this specification may be implemented individually or simultaneously.

[0039] Although not limited thereto, the various descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this specification may be applied to various fields where wireless communication and / or connectivity between devices (e.g., 5G) is required.

[0040] The present specification will be described in more detail below with reference to the drawings. In the following drawings and / or description, the same reference numerals may refer to the same or corresponding hardware blocks, software blocks, and / or function blocks unless otherwise indicated.

[0041] FIG. 1 shows an example of a communication system to which the implementation of the present specification is applied.

[0042] The 5G usage scenario shown in FIG. 1 is merely an example, and the technical features of this specification may be applied to other 5G usage scenarios not shown in FIG. 1.

[0043] The three main requirements categories for 5G are (1) enhanced mobile broadband (eMBB) category, (2) massive machine type communication (mMTC) category, and (3) ultra-reliable and low latency communications (URLLC) category.

[0044] Referring to FIG. 1, the communication system (1) includes wireless devices (100a to 100f), a base station (BS; 200), and a network (300). FIG. 1 illustrates a 5G network as an example of the network of the communication system (1), but the implementation of the present specification is not limited to a 5G system and may be applied to future communication systems beyond a 5G system.

[0045] The base station (200) and the network (300) can be implemented as wireless devices, and a specific wireless device can operate as a base station / network node in relation to another wireless device.

[0046] Wireless devices (100a to 100f) represent devices that perform communication using radio access technology (RAT) (e.g., 5G NR or LTE) and may also be referred to as communication / wireless / 5G devices. Wireless devices (100a to 100f) may include, but are not limited to, robots (100a), vehicles (100b-1 and 100b-2), extended reality (XR) devices (100c), portable devices (100d), home appliances (100e), IoT devices (100f), and artificial intelligence (AI) devices / servers (400). For example, vehicles may include vehicles with wireless communication capabilities, autonomous vehicles, and vehicles capable of performing communication between vehicles. Vehicles may include unmanned aerial vehicles (UAVs) (e.g., drones). XR devices may include AR / VR / mixed reality (MR) devices and may be implemented in the form of head-mounted devices (HMDs) and head-up displays (HUDs) mounted on vehicles, televisions, smartphones, computers, wearable devices, home appliances, digital signs, vehicles, robots, etc. Portable devices may include smartphones, smart pads, wearable devices (e.g., smartwatches or smart glasses), and computers (e.g., laptops). Home appliances may include TVs, refrigerators, and washing machines. IoT devices may include sensors and smart meters.

[0047] In this specification, wireless devices (100a to 100f) may be referred to as user equipment (UE). The UE may include, for example, a mobile phone, a smartphone, a laptop computer, a digital broadcasting terminal, a PDA (personal digital assistant), a PMP (portable multimedia player), a navigation system, a slate PC, a tablet PC, an ultrabook, a vehicle, a vehicle with autonomous driving capabilities, a connected car, a 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 financial device), a security device, a weather / environment device, a 5G service-related device, or a device related to the Fourth Industrial Revolution.

[0048] For example, a UAV can be an aircraft that is not on board and is navigated by radio control signals.

[0049] For example, a VR device may include a device for implementing objects or backgrounds in a virtual environment. For example, an AR device may include a device that implements objects or backgrounds in a virtual world by connecting them to objects or backgrounds in a real world. For example, an MR device may include a device that implements objects or backgrounds in a virtual world by merging them with objects or backgrounds in a real world. For example, a holographic device may include a device for implementing a 360-degree stereoscopic image by recording and playing back stereoscopic information using the phenomenon of light interference that occurs when two laser lights called holograms meet.

[0050] For example, a public safety device may include an image relay device or an image device that can be worn on a user's body.

[0051] For example, MTC devices and IoT devices may be devices that do not require direct human intervention or operation. For instance, MTC devices and IoT devices may include smart meters, vending machines, thermometers, smart light bulbs, door locks, or various sensors.

[0052] For example, a medical device may be a device used for the purpose of diagnosing, treating, alleviating, curing, or preventing a disease. For example, a medical device may be a device used to diagnose, treat, alleviate, or correct an injury or damage. For example, a medical device may be a device used for the purpose of examining, replacing, or modifying a structure or function. For example, a medical device may be a device used for the purpose of regulating pregnancy. For example, a medical device may include a therapeutic device, a driving device, a (in vitro) diagnostic device, a hearing aid, or a surgical device.

[0053] For example, a security device may be a device installed to prevent potential risks and maintain safety. For example, a security device may be a camera, closed-circuit TV (CCTV), a recorder, or a black box.

[0054] For example, a fintech device may be a device capable of providing financial services such as mobile payments. For example, a fintech device may include a payment device or a POS system.

[0055] For example, a weather / environment device may include a device for monitoring or predicting the weather / environment.

[0056] Wireless devices (100a to 100f) can be connected to a network (300) through a base station (200). AI technology may be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) through the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, and a network after 5G. The wireless devices (100a to 100f) may communicate with each other through the base station (200) / network (300), but they may also communicate directly (e.g., sidelink communication) without going through the base station (200) / network (300). For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., V2V (vehicle-to-vehicle) / V2X (vehicle-to-everything) communication). Also, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0057] Wireless communication / connections (150a, 150b, 150c) can be established between wireless devices (100a to 100f) and / or between wireless devices (100a to 100f) and base station (200) and / or between base station (200). Here, the wireless communication / connections can be established through various RATs (e.g., 5G NR), such as uplink / downlink communication (150a), sidelink communication (150b) (or D2D (device-to-device) communication), and communication between base stations (150c) (e.g., relay, IAB (integrated access and backhaul)). Through the wireless communication / connections (150a, 150b, 150c), wireless devices (100a to 100f) and base station (200) can transmit / receive wireless signals to / from each other. For example, wireless communication / connection (150a, 150b, 150c) may transmit / receive signals through various physical channels. To this end, based on various proposals in this specification, at least some of the following may be performed: a process for setting various configuration information for transmitting / receiving wireless signals, a process for various signal processing (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), and a resource allocation process.

[0058] AI refers to the field of researching artificial intelligence or the methodologies to create it, while machine learning refers to the field of researching methodologies to define and solve various problems within the realm of artificial intelligence. Machine learning is also defined as an algorithm that improves performance on a task through continuous experience.

[0059] A robot can refer to a machine that automatically processes or operates given tasks based on its own capabilities. In particular, a robot equipped with the ability to perceive its environment, make independent judgments, and perform actions can be called an intelligent robot. Robots can be classified into industrial, medical, domestic, and military types depending on their purpose or field of use. Robots are equipped with drive units, including actuators or motors, to perform various physical movements, such as moving robot joints. Additionally, mobile robots include wheels, brakes, propellers, etc., in their drive units, enabling them to drive on the ground or fly in the air.

[0060] Autonomous driving refers to technology that drives itself, and an autonomous vehicle refers to a vehicle that drives without user intervention or with minimal user intervention. For example, autonomous driving can include technologies such as maintaining the driving lane, automatically adjusting speed like adaptive cruise control, driving automatically along a predetermined route, and automatically setting a route and driving once a destination is set. The term "vehicle" encompasses vehicles equipped solely with internal combustion engines, hybrid vehicles equipped with both internal combustion engines and electric motors, and electric vehicles equipped solely with electric motors; it can include not only automobiles but also trains and motorcycles. An autonomous vehicle can be viewed as a robot equipped with autonomous driving capabilities.

[0061] Augmented Reality is a collective term for VR, AR, and MR. VR technology provides real-world objects or backgrounds solely as CG images, AR technology provides virtual CG images superimposed on images of real objects, and MR technology is a CG technology that mixes and combines virtual objects with the real world. MR technology is similar to AR technology in that it displays real-world and virtual objects together. However, there is a difference in that while virtual objects in AR technology are used to complement real-world objects, virtual and real objects in MR technology are used as equal entities.

[0062] NR supports multiple numerologies or subcarrier spacings (SCS) to support various 5G services. For example, when the SCS is 15 kHz, it supports a wide area in traditional cellular bands; when the SCS is 30 kHz / 60 kHz, it supports dense-urban areas, lower latency, and wider carrier bandwidth; and when the SCS is 60 kHz or higher, it supports a bandwidth greater than 24.25 GHz to overcome phase noise.

[0063] The NR frequency band can be defined by two types of frequency ranges (FR1, FR2). The numerical values ​​of the frequency ranges may change. For example, the two types of frequency ranges (FR1, FR2) may be as shown in Table 1 below. For convenience of explanation, among the frequency ranges used in the NR system, FR1 may mean "sub 6GHz range" and FR2 may mean "above 6GHz range" and may be referred to as millimeter wave (mmW).

[0064] Frequency Range Definition Frequency Range Subcarrier Spacing FR1 450 MHz - 6000 MHz 15, 30, 60 kHz FR2 24 250 MHz - 52600 MHz 60, 120, 240 kHz

[0065] As described above, the numerical value of the frequency range of the NR system may change. For example, FR1 may include a band of 410 MHz to 7125 MHz as shown in Table 2 below. That is, FR1 may include a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, the frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher included within FR1 may include an unlicensed band. The unlicensed band may be used for various purposes, for example, for communication for vehicles (e.g., autonomous driving).

[0066] Frequency Range Definition Frequency Range Subcarrier Spacing FR1 4 10 MHz - 7 125 MHz 15, 30, 60 kHz FR2 24 250 MHz - 5 2600 MHz 60, 120, 240 kHz

[0067] Here, the wireless communication technology implemented in the wireless device of this specification may include LTE, NR, and 6G, as well as narrowband IoT (NB-IoT) for low-power communication. For example, NB-IoT technology may be an example of low-power wide-area network (LPWAN) technology and may be implemented according to standards such as LTE Cat NB1 and / or LTE Cat NB2, but is not limited to the names mentioned above. Additionally, or generally, the wireless communication technology implemented in the wireless device of this specification may perform communication based on LTE-M technology. For example, LTE-M technology may be an example of LPWAN technology and may be referred to by various names such as enhanced MTC (eMTC). For example, LTE-M technology may be implemented in at least one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-bandwidth limited), 5) LTE-MTC, 6) LTE MTC, and / or 7) LTE M, and is not limited to the names mentioned above. Additionally or generally, wireless communication technology implemented in the wireless device of this specification may include at least one of ZigBee, Bluetooth, and / or LPWAN for low-power communication, and is not limited to the names mentioned above. For example, ZigBee technology may create personal area networks (PANs) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and may be referred to by various names.

[0068] FIG. 2 shows an example of a wireless device to which the implementation of the present specification applies.

[0069] In FIG. 2, the first wireless device (100) and / or the second wireless device (200) may be implemented in various forms depending on the use example / service. For example, {the first wireless device (100) and the second wireless device (200)} may correspond to at least one of {wireless devices (100a–100f) and base station (200)}, {wireless devices (100a–100f) and wireless devices (100a–100f)} and / or {base station (200) and base station (200)} of FIG. 1. The first wireless device (100) and / or the second wireless device (200) may be composed of various components, devices / parts and / or modules.

[0070] 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).

[0071] The processing chip (101) may include at least one processor, such as a processor (102), and at least one memory, such as a memory (104). Additionally and / or generally, the memory (104) may be placed outside the processing chip (101).

[0072] The processor (102) can control the memory (104) and / or the transceiver (106) and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed herein. For example, the processor (102) may process information within the memory (104) to generate a first information / signal and transmit a wireless signal containing the first information / signal through the transceiver (106). The processor (102) may receive a wireless signal containing a second information / signal through the transceiver (106) and process the second information / signal to store the obtained information in the memory (104).

[0073] Memory (104) may be connected to the processor (102) so as to be operable. Memory (104) may store various types of information and / or instructions. Memory (104) may store firmware and / or software code (105) that implements code, instructions, and / or a set of instructions that perform the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this specification when executed by the processor (102). For example, firmware and / or software code (105) may implement instructions that perform the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this specification when executed by the processor (102). For example, firmware and / or software code (105) may control the processor (102) to perform one or more protocols. For example, firmware and / or software code (105) may control the processor (102) to perform one or more wireless interface protocol layers.

[0074] Here, the processor (102) and memory (104) may be part of a communication modem / circuit / chip designed to implement a RAT (e.g., LTE or NR). A transceiver (106) may be connected to the processor (102) and may transmit and / or receive a wireless signal through one or more antennas (108). Each transceiver (106) may include a transmitter and / or receiver. The transceiver (106) may be interchangeably used with an RF (radio frequency) unit. In this specification, the first wireless device (100) may represent a communication modem / circuit / chip.

[0075] 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).

[0076] The processing chip (201) may include at least one processor, such as a processor (202), and at least one memory, such as a memory (204). Additionally and / or alternatively, the memory (204) may be placed outside the processing chip (201).

[0077] The processor (202) can control the memory (204) and / or the transceiver (206) and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed herein. For example, the processor (202) may process information within the memory (204) to generate a third information / signal and transmit a wireless signal containing the third information / signal through the transceiver (206). The processor (202) may receive a wireless signal containing a fourth information / signal through the transceiver (206) and process the fourth information / signal to store the obtained information in the memory (204).

[0078] Memory (204) may be connected to the processor (202) so as to be operable. Memory (204) may store various types of information and / or instructions. Memory (204) may store firmware and / or software code (205) that implements instruction code, instructions, and / or sets of instructions that perform descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this specification when executed by the processor (202). For example, firmware and / or software code (205) may implement instructions that perform descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this specification when executed by the processor (202). For example, firmware and / or software code (205) may control the processor (202) to perform one or more protocols. For example, firmware and / or software code (205) may control the processor (202) to perform one or more wireless interface protocol layers.

[0079] Here, the processor (202) and memory (204) may be part of a communication modem / circuit / chip designed to implement a RAT (e.g., LTE or NR). A transceiver (206) may be connected to the processor (202) and transmit and / or receive a wireless signal through one or more antennas (208). Each transceiver (206) may include a transmitter and / or receiver. The transceiver (206) may be interchangeably used with an RF unit. In this specification, the second wireless device (200) may represent a communication modem / circuit / chip.

[0080] Hereinafter, hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., functional layers such as a PHY (physical) layer, a MAC (media access control) layer, a RLC (radio link control) layer, a PDCP (packet data convergence protocol) layer, a RRC (radio resource control) layer, and an SDAP (service data adaptation protocol) layer). One or more processors (102, 202) may generate one or more PDUs (protocol data units), one or more SDUs (service data units), messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this specification. One or more processors (102, 202) may generate a signal (e.g., baseband signal) including a PDU, SDU, message, control information, data, or information according to the description, function, procedure, proposal, method, and / or operation flowchart disclosed in this specification and provide it to one or more transceivers (106, 206). One or more processors (102, 202) may receive a signal (e.g., baseband signal) from one or more transceivers (106, 206) and may obtain a PDU, SDU, message, control information, data, or information according to the description, function, procedure, proposal, method, and / or operation flowchart disclosed in this specification.

[0081] One or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, and / or a microcomputer. One or more processors (102, 202) may be implemented by hardware, firmware, software, and / or a combination thereof. For example, one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), one or more digital signal processing devices (DSPDs), one or more programmable logic devices (PLDs), and / or one or more field programmable gate arrays (FPGAs) may be included in one or more processors (102, 202). For example, one or more processors (102, 202) may be composed of a set of communication control processors, application processors (APs), electronic control units (ECUs), central processing units (CPUs), graphic processing units (GPUs), and memory control processors.

[0082] One or more memories (104, 204) may be connected to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. One or more memories (104, 204) may consist of random access memory (RAM), dynamic RAM (DRAM), read-only memory (ROM), erasable programmable ROM (EPROM), flash memory, volatile memory, non-volatile memory, hard drives, registers, cache memory, computer read storage media, and / or combinations thereof. One or more memories (104, 204) may be located inside and / or outside of one or more processors (102, 202). Additionally, one or more memories (104, 204) may be connected to one or more processors (102, 202) through various technologies such as wired or wireless connections.

[0083] One or more transceivers (106, 206) may transmit user data, control information, wireless signals / channels, etc., as described in the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this specification to one or more other devices. One or more transceivers (106, 206) may receive user data, control information, wireless signals / channels, etc., as described in the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this specification from one or more other devices. For example, one or more transceivers (106, 206) may be connected to one or more processors (102, 202) and may transmit and receive wireless signals. For example, one or more processors (102, 202) may control one or more transceivers (106, 206) to transmit user data, control information, wireless signals, etc., to one or more other devices. Additionally, one or more processors (102, 202) can control one or more transceivers (106, 206) to receive user data, control information, wireless signals, etc. from one or more other devices.

[0084] One or more transceivers (106, 206) may be connected to one or more antennas (108, 208). Additionally and / or generally, one or more transceivers (106, 206) may include one or more antennas (108, 208). One or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, etc., as described in the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed herein through one or more antennas (108, 208). In this specification, one or more antennas (108, 208) may be a plurality of physical antennas or a plurality of logical antennas (e.g., antenna ports).

[0085] One or more transceivers (106, 206) can convert received user data, control information, wireless signals / channels, etc. from RF band signals to baseband signals in order to process received user data, control information, wireless signals / channels, etc. using one or more processors (102, 202). One or more transceivers (106, 206) can convert processed user data, control information, wireless signals / channels, etc. from baseband signals to RF band signals using one or more processors (102, 202). To this end, one or more transceivers (106, 206) may include (analog) oscillators and / or filters. For example, one or more transceivers (106, 206) can up-convert an OFDM baseband signal into an OFDM signal through an (analog) oscillator and / or filter under the control of one or more processors (102, 202) and transmit the up-converted OFDM signal at a carrier frequency. One or more transceivers (106, 206) can receive an OFDM signal at a carrier frequency and down-convert the OFDM signal into an OFDM baseband signal through an (analog) oscillator and / or filter under the control of one or more processors (102, 202).

[0086] Although not illustrated in FIG. 2, the wireless device (100, 200) may include additional components. The additional components (140) may be configured in various ways depending on the type of the wireless device (100, 200). For example, the additional components (140) may include at least one of a power unit / battery, an input / output (I / O) device (e.g., audio I / O port, video I / O port), a driving unit, and a computing unit. The additional components (140) may be connected to one or more processors (102, 202) through various technologies, such as wired or wireless connections.

[0087] In an implementation of this specification, the UE may operate as a transmitting device in the uplink (UL; uplink) and as a receiving device in the downlink (DL; downlink). In an implementation of this specification, the base station may operate as a receiving device in the UL and as a transmitting device in the DL. For technical convenience, it is generally assumed that the first wireless device (100) operates as a UE and the second wireless device (200) operates as a base station. For example, a processor (102) connected to, mounted on, or released to the first wireless device (100) may be configured to perform UE operations according to an implementation of this specification or to control a transceiver (106) to perform UE operations according to an implementation of this specification. A processor (202) connected to, mounted on, or released to the second wireless device (200) may be configured to perform base station operations according to an implementation of this specification or to control a transceiver (206) to perform base station operations according to an implementation of this specification.

[0088] In this specification, the base station may be referred to as Node B, eNode B, or gNB.

[0089] FIG. 3 shows an example of a UE to which the implementation of the present specification applies.

[0090] Referring to FIG. 3, the UE (100) can correspond to the first wireless device (100) of FIG. 2.

[0091] The UE (100) includes a processor (102), memory (104), transceiver (106), one or more antennas (108), a power management module (141), a battery (142), a display (143), a keypad (144), a SIM (Subscriber Identification Module) card (145), a speaker (146), and a microphone (147).

[0092] The processor (102) may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed herein. The processor (102) may be configured to control one or more other components of the UE (100) to implement the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed herein. Layers of a wireless interface protocol may be implemented in the processor (102). The processor (102) may include an ASIC, other chipsets, logic circuits, and / or data processing devices. The processor (102) may be an application processor. The processor (102) may include at least one of a DSP, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), and a modem (modulator and demodulator). An example of the processor (102) is the SNAPDRAGON manufactured by Qualcomm®. TM Series processor, EXYNOS made by Samsung® TM Series processors, A Series processors made by Apple®, HELIO made by MediaTek® TM Series processors, ATOM made by Intel® TM It can be found in series processors or corresponding next-generation processors.

[0093] Memory (104) is coupled to the processor (102) so as to be operable and stores various information for operating the processor (102). Memory (104) may include ROM, RAM, flash memory, memory card, storage medium and / or other storage device. When the implementation is implemented in software, the technology described herein may be implemented using modules (e.g., procedures, functions, etc.) that perform the descriptions, functions, procedures, proposals, methods and / or operation flowcharts disclosed herein. Modules may be stored in memory (104) and executed by the processor (102). Memory (104) may be implemented within the processor (102) or outside the processor (102), in which case it may be communicatively coupled to the processor (102) through various methods known in the technology.

[0094] A transceiver (106) is coupled to operate with a processor (102) and transmits and / or receives a wireless signal. The transceiver (106) includes a transmitter and a receiver. The transceiver (106) may include a baseband circuit for processing a wireless frequency signal. The transceiver (106) controls one or more antennas (108) to transmit and / or receive a wireless signal.

[0095] The power management module (141) manages the power of the processor (102) and / or the transceiver (106). The battery (142) supplies power to the power management module (141).

[0096] The display (143) outputs the result processed by the processor (102). The keypad (144) receives input to be used by the processor (102). The keypad (144) can be displayed on the display (143).

[0097] A SIM card (145) is an integrated circuit for securely storing an International Mobile Subscriber Identity (IMSI) and associated keys, and is used to identify and authenticate a subscriber in a mobile device such as a mobile phone or computer. Additionally, contact information can be stored on many SIM cards.

[0098] The speaker (146) outputs sound-related results processed by the processor (102). The microphone (147) receives sound-related input to be used by the processor (102).

[0099] <6G System General>

[0100] The 6G (wireless communication) system aims for (i) very high data rates per device, (ii) a very large number of connected devices, (iii) global connectivity, (iv) very low latency, (v) reduced energy consumption of battery-free IoT devices, (vi) ultra-reliable connectivity, and (vii) connected intelligence with machine learning capabilities. The vision of the 6G system can be seen in four aspects: intelligent connectivity, deep connectivity, holographic connectivity, and ubiquitous connectivity, and the 6G system can satisfy the requirements shown in Table 1 below. In other words, Table 1 is a table showing an example of the requirements for a 6G system.

[0101] Per device peak data rate1 TbpsE2E latency1 msMaximum spectral efficiency100bps / HzMobility supportUp to 1000km / hrSatellite integrationFullyAIFullyAutonomous vehicleFullyXRFullyHaptic CommunicationFully

[0102] 6G systems can have key factors such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), massive machine-type communication (mMTC), AI integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0103] Figure 4 is a figure showing an example of a communication structure that can be provided in a 6G system.

[0104] 6G systems are expected to have 50 times higher simultaneous wireless connectivity than 5G wireless communication systems. URLLC, a key feature of 5G, will become an even more dominant technology in 6G communication by providing end-to-end latency of less than 1ms. Unlike the frequently used area spectrum efficiency, 6G systems will exhibit significantly superior volume spectrum efficiency. 6G systems can provide very long battery life and advanced battery technologies for energy harvesting, meaning mobile devices in 6G systems will not require separate charging. New network characteristics in 6G may include the following.

[0105] - Satellite Integrated Network: 6G is expected to be integrated with satellites to provide a global mobile population. Integrating terrestrial, satellite, and airborne networks into a single wireless communication system is crucial for 6G.

[0106] - Connected Intelligence: Unlike previous generations of wireless communication systems, 6G is innovative and will update wireless evolution from "connected things" to "connected intelligence." AI can be applied at each stage of the communication process (or at each step of the signal processing described below).

[0107] - Seamless integration of wireless information and energy transfer: 6G wireless networks will transfer power to charge the batteries of devices such as smartphones and sensors. Therefore, wireless information and energy transfer (WIET) will be integrated.

[0108] - Ubiquitous Super 3D Connectivity: Connectivity to the network and core network functions of drones and very low Earth orbit satellites will create Super 3D connectivity in 6G ubiquitous.

[0109] Some general requirements regarding the new network characteristics of 6G mentioned above may be as follows.

[0110] - Small cell networks: The idea of ​​small cell networks was introduced to improve the quality of received signals in cellular systems as a result of increased throughput, energy efficiency, and spectrum efficiency. Consequently, small cell networks are an essential feature of communication systems for 5G and beyond 5G (5GB). Therefore, 6G communication systems also adopt the characteristics of small cell networks.

[0111] - Ultra-dense heterogeneous network: Ultra-dense heterogeneous networks will be another important characteristic of 6G communication systems. Multi-tier networks composed of heterogeneous networks improve overall QoS and reduce costs.

[0112] - High-capacity backhaul: Backhaul connections are characterized as high-capacity backhaul networks to support high-volume traffic. High-speed fiber optics and free-space optics (FSO) systems can be possible solutions to this problem.

[0113] - Radar technology integrated with mobile technology: High-precision localization (or location-based services) through communication is one of the functions of 6G wireless communication systems. Therefore, radar systems will be integrated with 6G networks.

[0114] - Softwarization and virtualization: Softwarization and virtualization are two important features that form the basis of the design process in 5GB networks to ensure flexibility, reconfigurability, and programmability. Additionally, billions of devices can be shared across a shared physical infrastructure.

[0115] <Key Implementation Technologies of 6G Systems>

[0116] Artificial Intelligence

[0117] The most critical and newly introduced technology for 6G systems is AI. AI was not involved in 4G systems. 5G systems will support AI partially or to a very limited extent. However, 6G systems will be supported by AI for complete automation. Advancements in machine learning will create more intelligent networks for real-time communication in 6G. Introducing AI into communications can streamline and enhance real-time data transmission. AI can determine how complex target tasks are performed using numerous analyses. In other words, AI can increase efficiency and reduce processing latency.

[0118] Time-consuming tasks such as handover, network selection, and resource scheduling can be performed instantly by using AI. AI can also play a significant role in M2M, machine-to-human, and human-to-machine communication. Furthermore, AI can enable rapid communication in Brain-Computer Interfaces (BCI). AI-based communication systems can be supported by metamaterials, intelligent structures, intelligent networks, intelligent devices, intelligent cognitive radios, self-sustaining wireless networks, and machine learning.

[0119] Recently, attempts to integrate AI with wireless communication systems have emerged, but these have primarily focused on the application and network layers, particularly deep learning in the field of wireless resource management and allocation. However, such research is increasingly advancing toward the MAC and physical layers, with attempts to combine deep learning with wireless transmission, particularly at the physical layer. AI-based physical layer transmission refers to the application of signal processing and communication mechanisms based on AI drivers rather than traditional communication frameworks in terms of fundamental signal processing and communication mechanisms. Examples include deep learning-based channel coding and decoding, deep learning-based signal estimation and detection, deep learning-based MIMO mechanisms, and AI-based resource scheduling and allocation.

[0120] Machine learning can be used for channel estimation and channel tracking, and for power allocation and interference cancellation in the physical layer of the downlink (DL). In addition, machine learning can be used for antenna selection, power control, and symbol detection in MIMO systems.

[0121] Machine learning refers to a series of operations for training machines to create machines capable of performing tasks that humans can or find difficult to do. Machine learning requires data and learning models. Data learning methods in machine learning can be broadly classified into three types: supervised learning, unsupervised learning, and reinforcement learning.

[0122] The purpose of neural network training is to minimize output errors. It is a process that repeatedly inputs training data into a neural network, calculates the error between the network's output and the target for the training data, and updates the weights of each node by backpropagating the error from the output layer to the input layer in a direction that reduces the error.

[0123] Supervised learning uses training data with correct answers labeled, whereas unsupervised learning may not have correct answers labeled. That is, for example, in the case of supervised learning regarding data classification, the training data may consist of data where each training data point is labeled with a category. Labeled training data is input into a neural network, and an error can be calculated by comparing the network's output (category) with the labels of the training data. The calculated error is backpropagated within the neural network (i.e., from the output layer to the input layer), and the connection weights of each node in each layer of the neural network can be updated according to this backpropagation. The amount of change in the connection weights of each node being updated can be determined by the learning rate. The neural network's calculations on the input data and the backpropagation of the error can constitute a learning cycle (epoch). The learning rate can be applied differently depending on the number of iterations of the neural network's learning cycle. For example, efficiency can be increased by using a high learning rate in the early stages of neural network training to enable the network to quickly achieve a certain level of performance, and accuracy can be improved by using a low learning rate in the later stages of training.

[0124] The learning method may vary depending on the characteristics of the data. For example, if the goal is to accurately predict data transmitted from the transmitting end at the receiving end in a communication system, it is desirable to perform learning using supervised learning rather than unsupervised learning or reinforcement learning.

[0125] A learning model corresponds to the human brain, and while the most basic linear model can be considered, a machine learning paradigm that uses highly complex neural network structures, such as artificial neural networks, as learning models is called deep learning.

[0126] The neural network cores used for learning methods are broadly classified into deep neural networks (DNN), convolutional deep neural networks (CNN), recurrent Boltzmann machines (RNN), and spiking neural networks (SNN).

[0127] THz Communication (Terahertz Communication)

[0128] Data transmission rates can be increased by expanding bandwidth. This can be achieved by using sub-THz communication with wide bandwidth and applying advanced large-scale MIMO technology. THz waves, also known as sub-millimeter radiation, generally refer to a frequency band between 0.1 THz and 10 THz with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz–300 GHz band range (Sub-THz band) is considered the primary portion of the THz band for cellular communication. Adding the Sub-THz band to the mmWave band increases 6G cellular communication capacity. Among the defined THz bands, the 300 GHz–3 THz band is located in the far-infrared (IR) frequency band. Although the 300 GHz–3 THz band is part of the broadband, it lies at the boundary of the broadband and immediately following the RF band. Therefore, this 300 GHz–3 THz band exhibits similarities to RF.

[0129] Figure 5 shows an example of an electromagnetic spectrum.

[0130] Key characteristics of THz communication include (i) widely available bandwidth to support very high data transmission rates, and (ii) high path loss occurring at high frequencies (highly directional antennas are indispensable). The narrow beam width generated by highly directional antennas reduces interference. The small wavelength of THz signals allows a much larger number of antenna elements to be integrated into devices and BSs operating in this band. This enables the use of advanced adaptive array technologies that can overcome range limitations.

[0131] Large-scale MIMO

[0132] One of the key technologies for improving spectrum efficiency is the application of MIMO technology. As MIMO technology improves, spectrum efficiency also improves. Therefore, large-scale MIMO technology will be important in 6G systems. Since MIMO technology utilizes multiple paths, multiplexing technology and beam generation and operation technology suitable for the THz band must also be given important consideration to enable data signals to be transmitted through one or more paths.

[0133] Hologram Beam Forming (HBF)

[0134] Beamforming is a signal processing procedure that adjusts an antenna array to transmit wireless signals in a specific direction. It is a subset of smart antennas or advanced antenna systems. Beamforming technology offers several advantages, such as a high signal-to-noise ratio, interference prevention and rejection, and high network efficiency. Holographic Beamforming (HBF) is a new beamforming method that differs significantly from MIMO systems because it utilizes software-defined antennas. HBF is expected to be a highly effective approach for the efficient and flexible transmission and reception of signals in multi-antenna communication devices in 6G.

[0135] Optical wireless technology

[0136] Optical wireless communication (OWC) is a form of optical communication that transmits signals using visible light, infrared (IR), or ultraviolet (UV). OWC operating in the visible light band (e.g., 390–750 nm) is generally referred to as Visible Light Communication (VLC). Light-emitting diodes (LEDs) can be utilized for VLC implementation. VLC can be used in various applications, including wireless local area networks, wireless personal communication networks, and vehicle networks.

[0137] VLC offers the following advantages over RF-based technologies. First, the spectrum occupied by VLC is in the free / unlicensed band and can provide extensive bandwidth (THz-level bandwidth). Second, VLC causes minimal interference to other electromagnetic devices. Therefore, VLC can be applied to sensitive electromagnetic interference applications, such as aircraft and hospitals. Third, VLC offers strengths in communication security and privacy protection. The transmission medium of VLC-based networks, namely visible light, cannot penetrate walls or other opaque obstacles. Consequently, the transmission range of VLC can be limited to indoors, thereby protecting users' personal and sensitive information. Fourth, since VLC can utilize lighting sources as base stations, expensive base stations are not required.

[0138] Free-space Optical Communication (FSO) is an optical communication technology that uses light propagating in free space, such as air, outer space, or a vacuum, to wirelessly transmit data for communication or computer networking. FSO can be used as a point-to-point OWC system on the ground. FSO can operate at near-infrared frequencies (750–1600 nm). Laser transmitters can be used for FSO implementation, and FSO can provide high data rates (e.g., 10 Gbit / s), offering a potential solution to backhaul bottlenecks.

[0139] These OWC technologies were planned for 6G communication in addition to RF-based communication for all possible device-to-access networks. These networks connect to network-to-backhaul / fronthaul network connections. Although OWC technologies have already been in use since 4G communication systems, they will be used more widely to meet the demands of 6G communication systems. OWC technologies such as light fidelity, visible light communication, optical camera communication, and broadband-based FSO communication are already well-known technologies. Communication based on optical radio technology can provide very high data rates, low latency, and secure communication.

[0140] LiDAR (Light Detection And Ranging) can also be utilized for ultra-high resolution 3D mapping in 6G communication based on wide bandwidth. LiDAR refers to a remote sensing method that measures distance by illuminating an object with near-infrared, visible, and ultraviolet light and detecting the reflected light through an optical sensor. LiDAR can be used for fully autonomous driving in automobiles.

[0141] FSO Backhaul Network

[0142] The transmitter and receiver characteristics of an FSO system are similar to those of a fiber optic network. Therefore, data transmission in an FSO system is similar to that of a fiber optic system. Consequently, FSO can be a good technology for providing backhaul connectivity in 6G systems in conjunction with fiber optic networks. Using FSO enables very long-distance communication over distances of more than 10,000 km. FSO supports high-capacity backhaul connectivity for remote and non-remote areas such as the ocean, space, underwater, and isolated islands. FSO also supports cellular backhaul connectivity.

[0143] Non-Terrestrial Networks (NTN)

[0144] 6G systems integrate terrestrial and air networks to support vertically scalable user communications. 3D BS will be provided via low-orbit satellites and UAVs. By adding new dimensions in terms of altitude and associated degrees of freedom, 3D connectivity differs significantly from existing 2D networks. In NR, the Non-Terrestrial Network (NTN) is considered as one method for this. An NTN refers to a network or network segment that utilizes RF resources mounted on a satellite (or UAS platform). There are two common scenarios for NTNs that provide access to user equipment: transparent payload and regenerative payload. The following are the basic elements of an NTN.

[0145] - One or more sat-gateways connecting NTN to a public data network

[0146] - GEO satellites are supplied by one or more satellite gateways deployed across a satellite target range (e.g., regional or continental range). We assume that the UEs in a cell are serviced by only one satellite gateway.

[0147] - Non-GEO satellites providing continuous service from one or more satellite gateways at a time. The system ensures service and feeder link continuity between continuous service satellite gateways with a time duration sufficient to perform mobility anchoring and handover.

[0148] - Feeder link or wireless link between the satellite gateway and the satellite (or UAS platform)

[0149] - Service link or wireless link between user equipment and satellite (or UAS platform).

[0150] - A satellite (or UAS platform) capable of implementing transparent or regenerative (including onboard processing) payloads. Satellite (or UAS platform) generated beams typically produce multiple beams for a designated service area based on the line of sight. The beam footprint is generally elliptical. The satellite (or UAS platform)'s line of sight depends on the onboard antenna diagram and the minimum elevation angle.

[0151] - Transparent payload: Radio frequency filtering, frequency conversion, and amplification. Therefore, the waveform signal repeated by the payload is not altered.

[0152] - Playback Payload: Radio frequency filtering, frequency conversion and amplification, demodulation / decoding, switching and / or routing, coding / modulation. This is virtually equivalent to equipping a satellite (or UAS platform) with all or part of the base station functions (e.g., gNB).

[0153] - For satellite deployments, Inter-Satellite Links (ISL) are optional. This requires a regenerative payload on the satellite. ISL can operate at RF frequencies or in the broadband.

[0154] - User equipment is serviced by a satellite (or UAS platform) within the target service area.

[0155] Generally, GEO satellites and UAS are used to provide continental, regional, or local services.

[0156] Generally, LEO and MEO constellations are used to provide services in both the Northern and Southern hemispheres. In some cases, constellations may provide global coverage, including the polar regions. For this to work, appropriate orbital inclination, a sufficiently generated beam, and inter-satellite links are required.

[0157] Quantum Communication

[0158] Quantum communication is a next-generation communication technology that applies quantum mechanical properties to the field of information and communications to overcome the limitations of existing technologies, such as security and ultra-high-speed computing. Quantum communication provides a means to generate, transmit, process, and store information that cannot be represented in the form of 0 and 1 based on binary bits used in conventional communication technologies, or that is difficult to represent. While conventional communication technologies utilize wavelength or amplitude for information transmission between a transmitter and a receiver, quantum communication, in contrast, utilizes photons—the smallest unit of light—for this purpose. In particular, since quantum uncertainty and quantum irreversibility can be applied to the polarization or phase difference of photons (light), quantum communication possesses the characteristic of enabling communication with guaranteed perfect security. Furthermore, under specific conditions, quantum communication may enable ultra-high-speed communication by utilizing quantum entanglement.

[0159] Cell-free Communication

[0160] The tight integration of multiple frequencies and heterogeneous communication technologies is crucial in 6G systems. Consequently, users can seamlessly move from one network to another without the need for any manual configuration on their devices. The best network among available communication technologies is automatically selected. This will break the limitations of the cellular concept in wireless communication. Currently, user movement from one cell to another causes excessive handovers in high-density networks, leading to handover failures, delays, data loss, and the "ping-pong" effect. 6G cell-free communication will overcome all of these issues and provide better QoS.

[0161] Cell-free communication is defined as a “system in which multiple geographically distributed access points (APs) cooperatively serve a small number of terminals using the same time and frequency resources with the help of a fronthaul network and a CPU.” A single terminal is served by a set of multiple APs, which is called an AP cluster. There are various ways to form an AP cluster; among them, the method of configuring an AP cluster with APs that can significantly contribute to improving the terminal's reception performance is called terminal-centric clustering. When using this method, the configuration is dynamically updated as the terminal moves. By introducing this terminal-centric AP clustering technique, the terminal is always located at the center of the AP cluster, thereby becoming free from inter-cluster interference that can occur when a terminal is located at the boundary of the AP cluster. This cell-free communication will be achieved through multi-connectivity and multi-tier hybrid technologies, as well as heterogeneous radios used by different devices.

[0162] Integration of Wireless Information and Energy Transfer (WIET)

[0163] WIET uses the same fields and waves as wireless communication systems. In particular, sensors and smartphones will be charged using wireless power transmission during communication. WIET is a promising technology for extending the lifespan of wireless battery charging systems. Therefore, devices without batteries will be supported in 6G communication.

[0164] Integration of Wireless Communication and Sensing

[0165] Autonomous wireless networks are capable of continuously detecting dynamically changing environmental conditions and exchanging information between different nodes. In 6G, sensing will be tightly integrated with communication to support autonomous systems.

[0166] Integrated Access and Backhaul Network

[0167] In 6G, the density of access networks will be enormous. Each access network will be connected via backhaul connections such as fiber optics and FSO networks. To cope with a very large number of access networks, there will be tight integration between access and backhaul networks.

[0168] Big Data Analysis

[0169] Big data analysis is a complex process for analyzing various large-scale data sets or big data. This process ensures perfect data management by uncovering information such as hidden data, unknown correlations, and customer preferences. Big data is collected from various sources, such as video, social networks, images, and sensors. This technology is widely used to process vast amounts of data in 6G systems.

[0170] Reconfigurable Intelligent Surface

[0171] Numerous studies have been conducted that treat the wireless environment, along with transmitters and receivers, as a variable to be optimized. To emphasize the fundamental difference between wireless environments created through this approach and past design and optimization standards, they are referred to as Smart Radio Environments (SRE) or Intelligent Radio Environments (IRE). Regarding reconfigurable intelligent antenna (or intelligent reconfigurable antenna technology) as a technology for realizing SRE, various terms have been proposed, such as Reconfigurable Metasurfaces, Smart Large Intelligent Surfaces (SLIS), Large Intelligent Surfaces (LIS), Reconfigurable Intelligent Surface (RIS), and Intelligent Reflecting Surface (IRS).

[0172] THz band signals exhibit strong directivity, which can lead to numerous dead zones caused by obstacles. Consequently, RIS technology becomes crucial as it allows for the expansion of communication coverage, enhanced communication stability, and the provision of additional value-added services by installing RIS systems near these dead zones. An RIS is an artificial surface made of electromagnetic materials capable of altering the propagation of incoming and outgoing radio waves. While RIS may appear to be an extension of massive MIMO, it differs from massive MIMO in its array structure and operational mechanism. Furthermore, RIS offers the advantage of low power consumption because it operates as a reconfigurable reflector with passive elements—meaning it reflects signals passively without using an active RF chain. Additionally, since each passive reflector in the RIS must independently adjust the phase shift of the incident signal, this can be advantageous for wireless communication channels. By appropriately adjusting the phase shift through the RIS controller, the reflected signal can be collected at the target receiver to boost the received signal power.

[0173] There are also RISs that can control transmission and refraction characteristics as well as reflect wireless signals, and such RISs are mainly used for O2I (Outdoor to Indoor). Recently, STAR-RIS (Simultaneous Transmission and Reflection RIS), which provides transmission and reflection simultaneously, is also being actively researched.

[0174] Metaverse

[0175] Metaverse is a compound word formed from 'Meta,' meaning virtual or transcendent, and 'Universe,' meaning the universe. Generally, the term metaverse is used to mean something like 'a three-dimensional virtual space where social and economic activities similar to those in the real world are prevalent.'

[0176] Extended Reality (XR), a core technology for implementing the metaverse, can expand real-world experiences and provide a unique sense of immersion through the convergence of the virtual and the real. The high bandwidth and low latency of 6G networks enable users to experience Virtual Reality (VR) and Augmented Reality (AR) with enhanced immersion.

[0177] Autonomous Driving (Self-driving)

[0178] For perfect autonomous driving, vehicles must communicate with each other to alert one another to dangerous situations, or communicate with infrastructure such as parking lots and traffic lights to verify information like parking locations and signal change times. V2X (Vehicle-to-Everything), a core element of building autonomous driving infrastructure, is a technology that enables vehicles to communicate and share with various elements on the road to perform autonomous driving, including wireless communication between vehicles (V2V) and between vehicles and infrastructure (V2I).

[0179] Fast transmission speeds and low-latency technologies are essential to maximize the performance of autonomous driving and ensure high safety. Furthermore, as the amount of information to be transmitted and received increases significantly in the future—moving beyond the level of delivering warning or guidance messages to the driver to actively intervene in vehicle operation and directly control the vehicle in dangerous situations—it is expected that 6G will be able to maximize autonomous driving through faster transmission speeds and lower latency than 5G.

[0180] Unmanned Aerial Vehicle (UAV)

[0181] Unmanned Aerial Vehicles (UAVs) or drones will become a critical element in 6G wireless communication. In most cases, high-speed data wireless connectivity is provided using UAV technology. BS entities are installed on UAVs to provide cellular connectivity. UAVs possess specific capabilities not found in fixed BS infrastructure, such as easy deployment, robust line-of-sight links, and controlled degrees of freedom for mobility. During emergencies, such as natural disasters, the deployment of ground communication infrastructure is not economically feasible, and sometimes services cannot be provided in volatile environments. UAVs can easily handle these situations. UAVs will become a new paradigm in the field of wireless communication. This technology facilitates the three fundamental requirements of wireless networks: eMBB, URLLC, and mMTC. UAVs can also support various purposes, such as enhancing network connectivity, fire detection, disaster emergency services, security and surveillance, pollution monitoring, parking monitoring, and accident monitoring. Therefore, UAV technology is recognized as one of the most critical technologies for 6G communication.

[0182] Blockchain

[0183] Blockchain will become a critical technology for managing massive amounts of data in future communication systems. As a form of distributed ledger technology, a distributed ledger is a database distributed across numerous nodes or computing devices. Each node replicates and stores an identical copy of the ledger. Blockchain is managed via a peer-to-peer (P2P) network and can exist without being managed by a centralized authority or server. Data in a blockchain is collected together and organized into blocks. These blocks are linked together and protected using encryption. Blockchain inherently complements large-scale IoT perfectly through enhanced interoperability, security, privacy, stability, and scalability. Therefore, blockchain technology provides various capabilities such as inter-device interoperability, large-scale data traceability, autonomous interaction with other IoT systems, and the large-scale connectivity stability of 6G communication systems.

[0184] Figure 6 shows a wireless communication system.

[0185] Referring to FIG. 6, the wireless communication system includes at least one base station (BS). The BS is divided into gNodeB (or gNB) 20a and eNodeB (or eNB) 20b. The gNB (20a) supports 5th generation mobile communication. The eNB (20b) supports 4th generation mobile communication, namely LTE (Long Term Evolution).

[0186] Each base station 20a and 20b provides communication services for specific areas (generally called cells) 20-1, 20-2, and 20-3. Cells can be further divided into several areas (called sectors).

[0187] A User Terminal (UE) generally belongs to a single cell, and the cell to which the User Terminal belongs is called the serving cell. The base station that provides communication services to the serving cell is called the serving base station (serving BS). Since the wireless communication system is a cellular system, there are other cells adjacent to the serving cell. These other cells adjacent to the serving cell are called neighboring cells. The base station that provides communication services to the neighboring cells is called the neighboring base station (neighbor BS). The serving cell and neighboring cells are determined relatively to the UE.

[0188] Hereinafter, the downlink refers to communication from base station 20 to UE 10, and the uplink refers to communication from UE 10 to base station 20. In the downlink, the transmitter may be part of base station 20 and the receiver may be part of UE 10. In the uplink, the transmitter may be part of UE 10 and the receiver may be part of base station 20.

[0189] Meanwhile, wireless communication systems can be broadly classified into Frequency Division Duplex (FDD) and Time Division Duplex (TDD) methods. In the FDD method, uplink and downlink transmissions occupy different frequency bands. According to the TDD method, uplink and downlink transmissions occupy the same frequency band and occur at different times. The channel response in the TDD method is practically reciprocal. That is, within a given frequency range, the downlink channel response and the uplink channel response are nearly identical. Therefore, TDD-based wireless communication systems have the advantage of being able to obtain the downlink channel response from the uplink channel response. In the TDD method, since uplink and downlink transmissions are time-division across the entire frequency band, the base station's downlink transmission and the UE's uplink transmission cannot be performed simultaneously. In TDD systems where uplink and downlink transmissions are separated at the subframe level, uplink and downlink transmissions are performed in different subframes.

[0190] <Operating Band>

[0191] The operating band of NR is as follows.

[0192] Table 4 shows examples of FR1 operating bands. The operating bands presented in Table 4 are refreshed operating bands switched from LTE / LTE-A operating bands. These operating bands can be called FR1 operating bands.

[0193] NR operating bandUplink (UL) operating bandDownlink (DL) operating bandDuplex modeF UL_low - F UL_high F DL_low - F DL_highn11920 MHz - 1980 MHz2110 MHz - 2170 MHzFDDn21850 MHz - 1910 MHz1930 MHz - 1990 MHzFDDn31710 MHz - 1785 MHz1805 MHz - 1880 MHzFDDn5824 MHz - 849 MHz869 MHz - 894 MHzFDDn72500 MHz - 2570 MHz2620 MHz - 2690 MHzFDDn8880 MHz - 915 MHz925 MHz - 960 MHzFDDn12699 MHz - 716 MHz729 MHz - 746 MHzFDDn13777 MHz - 787 MHz746 MHz - 756 MHzFDDn14788 MHz - 798 MHz758 MHz - 768 MHzFDDn18815 MHz - 830 MHz860 MHz - 875 MHzFDDn20832 MHz - 862 MHz791 MHz - 821 MHzFDDn251850 MHz - 1915 MHz1930 MHz - 1995 MHzFDDn26814 MHz - 849 MHz859 MHz - 894 MHzFDDn28703 MHz - 748 MHz758 MHz - 803 MHzFDDn29N / A717 MHz - 728 MHzSDLn302305 MHz - 2315 MHz2350 MHz - 2360 MHzFDDn342010 MHz - 2025 MHz2010 MHz - 2025 MHzTDDn382570 MHz - 2620 MHz2570 MHz - 2620 MHzTDDn391880 MHz - 1920 MHz1880 MHz - 1920 MHzTDDn402300 MHz - 2400 MHz2300 MHz - 2400 MHzTDDn412496 MHz - 2690 MHz2496 MHz - 2690 MHzTDDn465150 MHz - 5925 MHz5150 MHz - 5925 MHzTDDn475855 MHz - 5925 MHz5855 MHz - 5925 MHzTDDn483550 MHz - 3700 MHz3550 MHz - 3700MHzTDDn501432 MHz - 1517 MHz1432 MHz - 1517 MHzTDDn511427 MHz - 1432 MHz1427 MHz - 1432 MHzTDDn532483.5 MHz - 2495 MHz2483.5 MHz - 2495 MHzTDDn651920 MHz - 2010 MHz2110 MHz - 2200 MHzFDDn661710 MHz - 1780 MHz2110 MHz - 2200 MHzFDDn701695 MHz - 1710 MHz1995 MHz - 2300 MHzFDDn71663 MHz - 698 MHz617 MHz - 652 MHzFDDn741427 MHz - 1470 MHz1475 MHz - 1518 MHzFDDn75N / A1432 MHz - 1517 MHzSDLn76N / A1427 MHz - 1432 MHzSDLn773300 MHz - 4200 MHz3300 MHz - 4200 MHzTDDn783300 MHz - 3800 MHz3300 MHz - 3800 MHzTDDn794400 MHz - 5000 MHz4400 MHz - 5000 MHzTDDn801710 MHz - 1785 MHzN / ASULn81880 MHz - 915 MHzN / ASULn82832 MHz - 862 MHzN / ASULn83703 MHz - 748 MHzN / ASULn841920 MHz - 1980 MHzN / ASULn861710 MHz - 1780 MHzN / ASULn89824 MHz - 849 MHzN / ASULn902496 MHz - 2690 MHz2496 MHz - 2690 MHzTDDn91832 MHz - 862 MHz1427 MHz - 1432 MHzFDDn92832 MHz - 862 MHz1432 MHz - 1517 MHzFDDn93880 MHz - 915 MHz1427 MHz - 1432 MHzFDDn94880 MHz - 915 MHz1432 MHz - 1517 MHzFDDn952010 MHz - 2025 MHzN / ASULn965925 MHz - 7125 MHz5925MHz - 7125 MHzTDDn972300 MHz - 2400 MHzN / ASULn981880 MHz - 1920 MHzN / ASUL

[0194] Table 5 shows examples of the operating band of FR2. The following table shows the operating band defined at high frequencies. This operating band is called the FR2 operating band.

[0195] NR operating bandUplink (UL) operating bandDownlink (DL) operating bandDuplex modeF UL_low - F UL_high F DL_low - F DL_high n25726500 MHz - 29500 MHz26500 MHz - 29500 MHzTDDn25824250 MHz - 27500 MHz24250 MHz - 27500 MHzTDDn25939500 MHz - 43500 MHz39500 MHz - 43500 MHzTDDn26037000 MHz - 40000 MHz37000 MHz - 40000 MHzTDDn26127500 MHz - 283500 MHz27500 MHz - 283500 MHzTDD

[0196] Figure 7 shows the structure of a wireless frame used in NR.

[0197] In NR, uplink and downlink transmissions consist of frames. A radio frame has a length of 10 ms and is defined as two 5 ms half-frames (HF). A half-frame is defined as five 1 ms subframes (SF). A subframe is divided into one or more slots, and the number of slots within a subframe is determined by the Subcarrier Spacing (SCS). Each slot contains 12 or 14 OFDM(A) symbols depending on the Cyclic Prefix (CP). Generally, when using CP, each slot contains 14 symbols. When using an extended CP, each slot contains 12 symbols. Here, the symbols may include OFDM symbols (or CP-OFDM symbols) and SC-FDMA symbols (or DFT-s-OFDM symbols).

[0198] Figure 8 shows an example of a subframe type used in NR.

[0199] The TTI (Transmission Time Interval) illustrated in Fig. 8 can be considered a subframe or slot of the NR (or new RAT). The subframe (or slot) of Fig. 8 can be used to minimize data transmission delay in the TDD system of the NR (or new RAT). As illustrated in Fig. 8, the subframe (or slot) consists of 14 symbols, just like the current subframe. The first symbol of the subframe (or slot) is used for the downlink control channel, and the second symbol of the subframe (or slot) can be used for the uplink control channel. The remaining symbols can be used for downlink data transmission or uplink data transmission. According to this subframe (or slot) structure, downlink transmission and uplink transmission can be performed sequentially within a single subframe (or slot). Thus, downlink data can be received within the subframe (or slot), and uplink acknowledgments (ACK / NACK) can be transmitted within the subframe (or slot).

[0200] The structure of such a subframe (or slot) is called a self-supporting subframe (or slot).

[0201] Specifically, the first N symbols of the slot may be used to transmit a DL control channel (hereinafter, DL control area), and the last M symbols of the slot may be used to transmit a UL control channel (hereinafter, UL control area). N and M are each integers greater than or equal to 0. The resource area (hereinafter, data area) between the DL control area and the UL control area may be used for DL ​​data transmission or UL data transmission. For example, PDCCH may be transmitted in the DL control area and PDSCH may be transmitted in the DL data area. PUCCH may be transmitted in the UL control area and PUSCH may be transmitted in the UL data area.

[0202] Using such a subframe (or slot) structure reduces the time required to retransmit data that has received errors, thereby minimizing the final data transmission delay. In this self-contained subframe (or slot) structure, a time interval may be required during the transition from transmit mode to receive mode or from receive mode to transmit mode. To this end, some OFDM symbols can be set as the guard period (GP) when transitioning from DL to UL in the subframe structure.

[0203] Support of Various Numerologies

[0204] A numerology can be defined by the length of the cycle prefix (CP) and the subcarrier spacing. A single cell can provide multiple numerologies to the UE. When the index of a numerology is denoted by μ, the subcarrier spacing and the corresponding CP length can be expressed as shown in the following table.

[0205] MΔf=2μ*15 [kHz]CP015Normal130Normal260Normal, Extended3120Normal4240Normal

[0206] For standard CP, when the numerology index is represented as μ, the number of OLDM symbols per slot is N. slot symb , number of slots per frame N frame,μ slot , and the number of slots N per subframe subframe,μ slot It is expressed as shown in the following table.

[0207] μN slot symb N frame,μ slot N subframe,μ slot 0141011142022144043148084141601651432032

[0208] For extended CP, when the numerology index is represented by μ, the number of OLDM symbols per slot is N. slot symb , number of slots per frame N frame,μ slot , and the number of slots N per subframe subframe,μ slot It is expressed as shown in the following table.

[0209] μN slot symb N frame,μ slot N subframe,μ slot 212404

[0210] <Maximum output power>

[0211] The UE Power Class (PC) in Table 9 defines the maximum output power for all transmission bandwidths within the transmission bandwidth of the NR carrier unless otherwise specified. The measurement period may be at least one subframe (1ms).

[0212] NRbandClass 1 (dBm)Tolerance (dB)Class 2 (dBm)Tolerance (dB)Class 3 (dBm)Tolerance (dB)n123±2n223±23n323±23n523±2n723±23n823±23n1223±23n1431+2 / -323±23n1823±2n2023±23n2523±23n2623±23n2823+2 / -2.5n3023±2n3423±2n3823±2n3923±2n4023±2n4126+2 / -3323±23n4823+2 / -3n5023±2n5123±2n5323±2n6523±2n6623±2n7023±2n7123+2 / -2.5n7423±2n7726+2 / -323+2 / -3n7826+2 / -323+2 / -3n7926+2 / -323+2 / -3n8023±2n8123±2n8223±2n8323±2 / -2.5n8423±2n8623±2n8923±2n9123±23, 4n9223±23, 4n9323±23, 4n9423±23, 4n9523±2NOTE 1: A power class is the specified maximum UE power without taking tolerance into account.NOTE 2: Power class 3 is the default power class unless otherwise specified.NOTE 3: Referring to the transmission bandwidth bounded within F UL_low and F UL_low + 4 MHz or F UL_high - 4 MHz and F UL_high , the maximum output power requirement is relaxed by reducing the lower tolerance limit by 1.5 dB.NOTE 4: The maximum output power requirement is relaxed by reducing the lower tolerance limit by 0.3dB.

[0213] The following are cases where the UE supports a power class different from the default UE power class for the band, and the supported power class enables a higher maximum output power than the default power class.

[0214] - If the UE performance maxUplinkDutyCycle-PC2-FR1 field is missing and the ratio of uplink symbols transmitted during a specific evaluation period is greater than 50% (if the exact evaluation period is two or more radio frames); or

[0215] - If the UE performance maxUplinkDutyCycle-PC2-FR1 field is missing and the ratio of uplink symbols transmitted during a specific evaluation period is greater than the defined maxUplinkDutyCycle-PC2-FR1 (if the exact evaluation period is two or more radio frames); or

[0216] - When a defined IE P-Max is provided and set to a maximum output power lower than the base power class

[0217] - All requirements for the basic power class must be applied to the supported power class, and the transmission power must be set.

[0218] - Otherwise, if the defined IE P-Max is not provided or is set to a value higher than the maximum output power of the base power class, and the percentage of uplink symbols transmitted during a specific evaluation period is less than or equal to maxUplinkDutyCycle-PC2-FR1.

[0219] - If the defined IE P-Max is not provided or is set to a value higher than the maximum output power of the base power class, and the percentage of uplink symbols transmitted during a specific evaluation period is 50%, or if maxUplinkDutyCycle-PC2-FR1 is missing. (The exact evaluation period is one or more radio frames):

[0220] - All requirements for the supported power class must be applied and the transmission power set.

[0221] <MPR (Maximum Power Reduction) 및 A-MPR (allowed Additional MPR)>

[0222] Figures 9 and 10 show examples of methods for limiting the transmission power of a UE.

[0223] Referring to FIG. 9, UE 100 can perform transmission with limited transmission power. For example, UE 100 can perform uplink transmission to a base station with reduced transmission power.

[0224] When the Peak-to-Average Power Ratio (PAPR) of the signal transmitted from the UE 100 increases, the UE 100 applies a Maximum Output Power Reduction (MPR) value to the transmission power to limit the transmission power. This can reduce the linearity of the internal power amplifier (PA) of the UE 100's transceiver.

[0225] Referring to FIG. 10, a base station (BS) can request the UE 100 to apply A-MPR by transmitting a network signal (NS). An A-MPR-related operation can be performed so as not to affect adjacent bands, etc. Unlike the MPR described above, an A-MPR-related operation is an operation in which the base station transmits a network signal (NS) to the UE 100 operating in a specific operating band to additionally perform power reduction. That is, when a UE with MPR applied receives the NS, the UE can additionally apply A-MPR to determine the transmission power.

[0226] Figure 11 shows an example of an imbalance between uplink coverage and downlink coverage.

[0227] Coverage imbalance may occur in existing NR communication.

[0228] The terminal can use relatively small transmission power compared to the gNB. As a result, the terminal may have smaller coverage compared to the gNB.

[0229] The reason the terminal uses low transmission power may be that it must satisfy a requirement called the Specific Absortion Rate (SAR).

[0230] SAR may be a requirement designed to prevent human skin damage caused by high power.

[0231] To reduce coverage imbalance, research was conducted in the direction of reducing MPR.

[0232] To limit interference that the terminal may generate and to optimize power consumption, MPR is applied to the transmission power.

[0233] For example, when applying an MPR of 2dB to reduce interference from various interference signals, the signal is transmitted at a power 2dB lower than the maximum output power. Therefore, a method using a Frequency Domain Spectral Shaping (FDSS) filter in the communication system has been proposed to improve the MPR.

[0234] In this specification, an MPR reduction operation method may be proposed to enhance the power domain in the NR FR1 band.

[0235] The reduction of MPR can be discussed for power domain enhancement.

[0236] MPR reduction may be applied to (e) RedCap UE (only PC3) and / or non-RedCap UE. Or, it is not limited to these conditions.

[0237] MPR reduction may be applied to QPSK and / or 16QAM. Or, it is not limited to these conditions.

[0238] In this specification, a method for considering MPR according to the case of BS indication may be proposed.

[0239] There was a conventional agreement that ACLR / SEM / SE would not be directly mitigated.

[0240] A method to convert Outer RB allocation into Inner RB allocation can be proposed.

[0241] This method may be a method of applying the MPR value of the Inner area (Inner RB allocation) to the MPR value of the Outer area (Outer RB allocation).

[0242] Generally, the MPR value of the Inner area (Inner RB allocation) may be smaller than the MPR value of the Outer area (Outer RB allocation). Therefore, converting Outer RB allocation to Inner RB allocation can reduce the MPR.

[0243] The conventional methods for defining the Inner area (Inner RB allocation) and Outer area (Outer RB allocation) are as follows:

[0244] - RB Start,Low = max(1, floor(L CRB / 2))

[0245] - RB Start,High = N RB - RB Start,Low - L CRB

[0246] N RB It may be a transmission bandwidth configuration expressed as a unit of RB (resource block).

[0247] L CRBmay be a transmission bandwidth representing the length of a contiguous resource block allocation expressed as a unit of a resource block (RB).

[0248] In addition, the inner region can satisfy the following conditions:

[0249] - RB Start,Low ≤ RB Start ≤ RB Start,High , and

[0250] - L CRB ≤ ceil(N RB / 2)

[0251] Edge allocation can be defined as follows.

[0252] -An Edge RB allocation is the one for which the RB(s) is (are) allocated at the lowermost or uppermost edge of the channel LCRB ≤ 2 RBs

[0253] For example, Edge RB allocation is where the RB is channel L CRB It may be an assignment assigned to the lowest or highest edge of RB ≤ 2.

[0254] For example, Edge RB allocation may mean that the transmission BW is allocated to the lowermost or uppermost edge within 2 RB.

[0255] Through the aforementioned equation, N RB Once determined, the transmission bandwidth range of the corresponding UE can be automatically determined.

[0256] Figure 12 shows examples of the inner region and the outer region.

[0257] In this way, NRB Once determined, the Inner, Outer, and Edge regions of the corresponding UE transmission bandwidth can be defined. Depending on these determined allocation regions, the MPR value may vary.

[0258] MPR can vary depending on the domain, power class, and modulation.

[0259] Table 10 shows examples of MPRs for Power Class 3.

[0260] ModulationMPR (dB)Edge RB allocationsOuter RB allocationsInner RB allocationsDFT-s-OFDMPi / 2 BPSK≤3.5 1 ≤1.2 1 ≤0.2 1 ≤0.5 2,3 ≤0.5 2 0 2,4 Pi / 2 BPSK w Pi / 2 BPSK DMRS≤0.5 2,3 0 2 0 2,4 QPSK≤10 516 QAM≤2≤164 QAM≤2.5256 QAM≤4.5CP-OFDMQPSK≤3≤ 1.516 QAM≤3≤ 264 QAM≤3.5256 QAM≤6.5NOTE 1: Applicable for UE operating in TDD mode with Pi / 2 BPSK modulation and UE indicates support for UE capabilitypowerBoosting-pi2BPSKand if the IEpowerBoostPi2BPSKis set to 1 and 40 % or less slots in radio frame are used for UL transmission for bands n40, n41, n77, n78 and n79. The reference power of 0 dB MPR is 26 dBm.NOTE 2: Applicable for conditions where note 1 does not apply.NOTE 3: For 3 MHz channel bandwidth the Pi / 2 BPSK edge allocation MPR is 1 dBNOTE 4: For a UE indicating support for UE capabilitypowerBoosting-pi2BPSK-QPSK-r18orpowerBoosting-pi2BPSK-QPSK-Modified-r18and if the IEpowerBoostPi2BPSK-r18is set to 1, the reference power is increased by [ΔP PowerBoost - ΔP PowerClass ]NOTE 5: For a UE indicating support for UE capabilitypowerBoosting-pi2BPSK-QPSK-r18orpowerBoosting-pi2BPSK-QPSK-Modified-r18and if the IEpowerBoostQPSK-r18is set to 1, the reference power is increased by [ΔPPowerBoost - ΔP PowerClass ]

[0261] Table 11 shows examples of MPRs for Power Class 2.

[0262] ModulationMPR (dB)Edge RB allocationsOuter RB allocationsInner RB allocationsDFT-s-OFDMPi / 2 BPSK≤3.5≤ 0.50 1 QPSK≤3.5≤ 10 2 16 QAM≤3.5≤ 2≤164 QAM≤3.5≤ 2.5256 QAM≤4.5CP-OFDMQPSK≤3.5≤ 3≤ 1.516 QAM≤3.5≤ 3≤ 264 QAM≤3.5256 QAM≤6.5NOTE 1: Applicable for a UE indicating support for UE capabilitypowerBoosting-pi2BPSK-QPSK-r18orpowerBoosting-pi2BPSK-QPSK-Modified-r18and if the IEpowerBoostPi2BPSK-r18is set to 1. The reference power is increased by [ΔP PowerBoost - ΔP PowerClass ]NOTE 2: Applicable for a UE indicating support for UE capabilitypowerBoosting-pi2BPSK-QPSK-r18orpowerBoosting-pi2BPSK-QPSK-Modified-r18and if the IEpowerBoostQPSK-r18is set to 1. The reference power is increased by [ΔP PowerBoost - ΔP PowerClass ]

[0263] As shown in the examples in Tables 10 and 11, it can be seen that smaller MPR values ​​are applied as one moves toward the inner region. Therefore, if the outer region can be viewed as the inner region, the MPR can be improved.

[0264] If the transmission bandwidth (UE transmission bandwidth) is separated from the adjacent channel by more than a certain number of RBs (e.g., x) (where x is a positive integer), an offset may be applied by that amount of RB.

[0265] The number of separated RBs or less is the previously defined N RB In addition to N RB_new can be defined.

[0266] The base station is N RB_new and RB offset (RB offset_left ,RB offset_right An indication including ) can be transmitted to the terminal. Based on this, the terminal can calculate / determine a new MPR to apply.

[0267] FIGS. 13 to 17 are N RB_new and RB offset (RB offset_left ,RB offset_right It shows an example of ).

[0268] The following drawings are prepared to illustrate a specific example of the present specification. The names of specific devices or specific signals / messages / fields described in the drawings are presented as examples, and therefore the technical features of the present specification are not limited to the specific names used in the following drawings.

[0269] FIG. 13 illustrates a first example according to the disclosure of the present specification.

[0270] FIG. 14 illustrates a second example according to the disclosure of the present specification.

[0271] FIG. 15 illustrates a third example according to the disclosure of the present specification.

[0272] FIG. 16 illustrates a fourth example according to the disclosure of the present specification.

[0273] For example, as in the second example, a method excluding the guard band can be considered.

[0274] For example, the method excluding the guard band is RB offset (RB offset_left ,RB offset_right ) may include a guard band.

[0275] If there are no channels allocated on either side of the terminal's transmission bandwidth (UE transmission bandwidth), the network (e.g., base station) is N RB_new An indication including can be transmitted to the terminal. Based on this, the Inner region (inner RB region) can be expanded.

[0276] N RB_new can be defined as follows:

[0277] - N RB_new = N RB + RB offset_left + RB offset_right

[0278] In contrast to this, N RB_new is 'N RB + RB offset_left + RB offset_right It can be smaller than the value.

[0279] RB offset_left and RB offset_right can be any value within the empty RB region. For example, it can be symmetric or asymmetric.

[0280] RB offset_left and RB offset_right It may be the same or different.

[0281] Alternatively, it can be a fixed value as follows.

[0282] - N RB_new = N RB + RB offset_left + RB offset_right = N RB + celi(N RB / 2) + celi(N RB / 2), or

[0283] - N RB_new = NRB + RB offset_left + RB offset_right = N RB + floor(N RB / 2) + floor(N RB / 2)

[0284] The following drawings are prepared to illustrate a specific example of the present specification. The names of specific devices or specific signals / messages / fields described in the drawings are presented as examples, and therefore the technical features of the present specification are not limited to the specific names used in the following drawings.

[0285] FIG. 17 illustrates a fifth example according to the disclosure of the present specification.

[0286] X*RB may be the number of RBs between the transmission bandwidth allocated to the terminal and the other transmission bandwidth closest to the left of that transmission bandwidth. For example, X*RB may be the number of empty (unallocated) RBs to the left of the transmission bandwidth allocated to the terminal.

[0287] Y*RB may be the number of RBs between the transmission bandwidth allocated to the terminal and the other transmission bandwidth closest to the right of that transmission bandwidth. For example, Y*RB may be the number of empty (unallocated) RBs to the right of the transmission bandwidth allocated to the terminal.

[0288] X*RB is RB offset_left That is the case, and Y*RB is RB offset_right In the case of an abnormality, the transmission bandwidth of the terminal is N RB_new It can be extended. Based on the extended transmission bandwidth, the terminal can calculate / determine an inner area for MPR application.

[0289] RB offset_left and RB offset_right It can be symmetric or asymmetric.

[0290] RB offset_left is 0.5*N RBor 0.25*N RB It could be.

[0291] RB offset_right is 0.5*N RB or 0.25*N RB It could be.

[0292] 'N RB If =BS transmission bandwidth', then RB offset_left and RB offset_right It can be 0.

[0293] The terminal can be a redcap UE or a non-redcap UE.

[0294] Figure 18 shows an example of the RB area in the existing terminal transmission bandwidth.

[0295] The transmission BW of the existing transmission bandwidth is set to (RBstart, LCRB)= (X, Y).

[0296] The transmission BW belongs to the Outer region.

[0297] N RB_new When applied, the RB region of the transmission BW may be as shown in Fig. 19.

[0298] The following drawings are prepared to illustrate a specific example of the present specification. The names of specific devices or specific signals / messages / fields described in the drawings are presented as examples, and therefore the technical features of the present specification are not limited to the specific names used in the following drawings.

[0299] FIG. 19 shows an example of an extended RB area in an extended terminal transmission bandwidth according to the disclosure of the present specification.

[0300] According to Fig. 19, the existing Outer region can be converted into an Inner region.

[0301] Regarding the RB area, the terminal previously had '(RB start , L CRB )= (X, Y)' may be set.

[0302] The terminal can transmit its capability (UE capability) information to the network (e.g., base station).

[0303] The above capability information may include information that the terminal can expand the transmission bandwidth.

[0304] The above capability information may include information that the terminal can convert the Outer area into an Inner area.

[0305] Based on the terminal's capability information, the network can transmit an indication to the terminal.

[0306] Based on the indication, the terminal can determine the extended RB area.

[0307] Based on the indication, the terminal is N of the extended RB area RB , RB start , N RB_new You can decide the back.

[0308] Based on the indication, the terminal (RB of the extended RB area (e.g., extended transmission bandwidth) start +RB offset_left , L CRB ) can be determined. For example, as the RB area expands, RB start is RB offset_left It can increase by that amount.

[0309] The above indication is N RB_new and RB offset_left It may include.

[0310] The following drawings are prepared to illustrate a specific example of the present specification. The names of specific devices or specific signals / messages / fields described in the drawings are presented as examples, and therefore the technical features of the present specification are not limited to the specific names used in the following drawings.

[0311] FIGS. 20 and FIGS. 21 illustrate examples of capability information of a terminal according to the disclosure of the present specification.

[0312] FIG. 22 shows an example of a flowchart according to the disclosure of the present specification.

[0313] Indication received from the network (e.g., N RB_new and RB offset_left Based on ), the terminal can make a decision on the RB area (e.g., RB allocation).

[0314] The terminal is of the extended RB area (e.g., extended transmission bandwidth) (RB start +RB offset_left , L CRB ) can be determined.

[0315] Based on this, the MPR according to the extended RB area (e.g., extended transmission bandwidth) is the improved MPR (MPR enh) It can be defined as.

[0316] Based on this, the configured transmitted output power can be defined as follows:

[0317] - P CMAX_L,f,c = MIN {P EMAX,c - ΔT C,c , (P PowerClass - ΔP PowerClass + ΔP PowerBoost ) - MAX(MAX(MPR c +ΔMPR c , A-MPR c , MPR enh )+ ΔT IB,c + ΔT C,c + ΔT RxSRS , P-MPR c )}, or

[0318] - P CMAX_L,f,c = MIN {P EMAX,c - ΔT C,c , (P PowerClass - ΔP PowerClass + ΔP PowerBoost ) - MAX(MAX(A-MPR c , MPR enh )+ ΔTIB,c + ΔT C,c + ΔT RxSRS , P-MPR c )}, or

[0319] - P CMAX_L,f,c = MIN {P EMAX,c - ΔT C,c , (P PowerClass - ΔP PowerClass + ΔP PowerBoost ) - MAX(MAX(MPR c +ΔMPR c , MPR enh )+ ΔT IB,c + ΔT C,c + ΔT RxSRS , P-MPR c )}

[0320] The improved MPR value based on indication is the existing MPR c If included, the configured transmitted output power as before can be defined as follows:

[0321] - P CMAX_L,f,c = MIN {P EMAX,c - ΔT C,c , (P PowerClass - ΔP PowerClass + ΔP PowerBoost ) - MAX(MAX(MPR c +ΔMPR c , A-MPR c )+ ΔT IB,c + ΔT C,c + ΔT RxSRS , P-MPR c )}

[0322] The following drawings are prepared to illustrate a specific example of the present specification. The names of specific devices or specific signals / messages / fields described in the drawings are presented as examples, and therefore the technical features of the present specification are not limited to the specific names used in the following drawings.

[0323] FIG. 23 shows an example of an edge region according to the disclosure of the present specification.

[0324] The Edge RB area is defined in the standard as follows:

[0325] - 'An Edge RB allocation is the one for which the RB(s) is (are) allocated at the lowermost or uppermost edge of the channel LCRB ≤ 2 RBs'

[0326] For example, conventionally, the RB area corresponding to within 2*RB from the lowest or uppermost point of the UE transmission bandwidth is defined as the Edge area.

[0327] In accordance with the disclosure of this specification, RB offset_left and RB offset_right If RB is 2*RB or greater, it can be assumed that there is no Edge RB.

[0328] For example, the existing Edge region can be changed to the Outer region of the extended RB region.

[0329] RB offset_left and RB offset_right If is 2*RB or greater, the edge RB region may not be considered.

[0330] For “PC1 UE supporting other bands than n14”, Edge RB allocation is defined as follows:

[0331] - If L CRB ≤L CRB,edge AND (RB start ≤RB start,edge OR RB start ≥N RB -RB start,edge -L CRB ), corresponds to Edge RB allocation

[0332] - LCRB,edge = 6 (if CBW < 50MHz)

[0333] - L CRB,edge = 12 (if CBW ≥ 50MHz)

[0334] Even in such cases, L CRB,edge If larger RBs are empty on both sides, it can be said that there is no Edge RB allocation.

[0335] RB offset_left and RB offset_right Ga L CRB,edge If it is smaller, Edge RB allocation may not be considered only to the extent corresponding to that difference.

[0336] Cases 1 to 7 may be proposed as examples of an inner area to which the disclosure of the present specification is applied.

[0337] After explaining the terms, define each case.

[0338] The UE can transmit signals from transmitted resource blocks (RBs).

[0339] floor(x) can be the largest integer smaller than x.

[0340] ceil(x) can be the smallest integer greater than x.

[0341] L CRB can be the number of RBs of the length of a continuous RB allocation of the extended transmission bandwidth.

[0342] N RB_new can be the number of RB (resource blocks) of the extended transmission bandwidth.

[0343] N RB can be the number of RB (resource blocks) of the transmission bandwidth.

[0344] RB Start can be the lowest RB index of the transfer RBs.

[0345] 1) Case 1

[0346] It can be as follows:

[0347] - RB Start,Low = max(1, floor(L CRB / 2))

[0348] - RB Start,High = N RB_new - RB Start,Low - L CRB

[0349] - N RB_new = N RB + RB offset_left +RB offset_right

[0350] Based on this, an RB allocation satisfying the following conditions can be an Inner RB allocation (Inner area):

[0351] - RB Start,Low ≤ RB Start + RB Offset_left ≤ RB Start,High , and

[0352] - L CRB ≤ ceil(N RB_new / 2)

[0353] 2) Case 2

[0354] It can be as follows:

[0355] - RB Start,Low = max(1, floor(L CRB / 2))

[0356] - RB Start,High = N RB_new - RB Start,Low - L CRB

[0357] Based on this, an RB allocation satisfying the following conditions can be an Inner RB allocation (Inner area):

[0358] - RB Start,Low ≤ RB Start + RBOffset_left ≤ RB Start,High , and

[0359] - L CRB ≤ ceil(N RB_new / 2)

[0360] 3) Case 3

[0361] It can be as follows:

[0362] - RB Start,Low = max(1, floor(L CRB / 2))

[0363] - RB Start,High = N RB - RB Start,Low - L CRB +RB offset_left +RB offset_right

[0364] Based on this, an RB allocation satisfying the following conditions can be an Inner RB allocation (Inner area):

[0365] - RB Start,Low ≤ RB Start + RB Offset_left ≤ RB Start,High , and

[0366] - L CRB ≤ ceil(N RB +RB offset_left +RB offset_right / 2)

[0367] 4) Case 4

[0368] It can be as follows:

[0369] - RB Start,Low = max(1, floor(L CRB / 2))

[0370] - RB Start,High = N RB_new - RB Start,Low - L CRB

[0371] - N RB_new = N RB + RBoffset_left +RB offset_right

[0372] Based on this, an RB allocation satisfying the following conditions can be an Inner RB allocation (Inner area):

[0373] - RB Start,Low ≤ RB Start ≤ RB Start,High and RB offset_left ≤ RB Start ≤ N RB_new +RB offset_left and RB Start ≤ N RB - RB Start,Low - L CRB

[0374] - L CRB ≤ ceil(N RB_new / 2)

[0375] 5) Case 5

[0376] It can be as follows:

[0377] - RB Start,Low = max(1, floor(L CRB / 2))

[0378] - RB Start,High = N RB_new - RB Start,Low - L CRB

[0379] - N RB_new = N RB + RB offset_left +RB offset_right

[0380] Based on this, an RB allocation satisfying the following conditions can be an Inner RB allocation (Inner area):

[0381] - RB Start,Low ≤ RB Start ≤ RB Start,High

[0382] - L CRB ≤ ceil(N RB / 2)

[0383] 6) Case 6

[0384] It can be as follows:

[0385] - RB Start,Low,new = max(1, floor(L CRB / 2)) - RB offset_left

[0386] - RB Start,High,new = N RB_new - RB Start,Low - L CRB - RB offset_left = N RB +RB offset_right - RB Start,Low - L CRB

[0387] - N RB_new = N RB + RB offset_left +RB offset_right

[0388] Based on this, an RB allocation satisfying the following conditions can be an Inner RB allocation (Inner area):

[0389] - RB Start,Low,new ≤ RB Start ≤ RB Start,High,new

[0390] - L CRB ≤ ceil(N RB_new / 2)

[0391] - RB offset_left , RB offset_right ≤ ceil(N RB / 2)

[0392] - RB Start,Low,new ≥ 0

[0393] - RB Start,High,new ≤ N RB - L CRB

[0394] 7) Case 7

[0395] It can be as follows:

[0396] - RB Start,Low,new = max(1, floor(L CRB / 2)) - RB offset_left

[0397] - RB Start,High,new = N RB_new - RB Start,Low - L CRB - RB offset_left = N RB +RB offset_right - RB Start,Low - L CRB

[0398] - N RB_new = N RB + RB offset_left +RB offset_right

[0399] Based on this, an RB allocation satisfying the following conditions can be an Inner RB allocation (Inner area):

[0400] - RB Start,Low,new ≤ RB Start ≤ RB Start,High,new

[0401] - L CRB ≤ ceil(N RB_new / 2)

[0402] - RB offset_left , RB offset_right ≤ ceil(N RB / 2)

[0403] - RB Start,Low,new ≥ 1

[0404] - RB Start,High,new ≤ N RB - L CRB

[0405] The same method as above can also be applied to multi-carrier operation. This will be discussed later.

[0406] The following drawings are prepared to illustrate a specific example of the present specification. The names of specific devices or specific signals / messages / fields described in the drawings are presented as examples, and therefore the technical features of the present specification are not limited to the specific names used in the following drawings.

[0407] FIG. 24 illustrates an example of multi-carrier operation according to the disclosure of the present specification.

[0408] Multiple carriers may be allocated within a single BS transmission bandwidth.

[0409] The case of 3 UEs was shown, but there may be 3 or fewer or 3 or more.

[0410] As with the single carrier example, the A*RB, B*RB, C*RB, and D*RB values ​​may or may not include the guard band of the UE channel.

[0411] UE1 can receive the following information from the network:

[0412] - N RB_new = N RB + RB Offset_left +RB Offset_right =N RB +(A+B)*RB

[0413] - RB offset_left =A*RB

[0414] Here, RB Offset_left Is It can be a value within A. RB Offset_right It can have a value within B.

[0415] UE2 can receive the following information from the network:

[0416] - N RB_new = N RB + RB Offset_left +RB Offset_right =N RB +(B+C)*RB

[0417] - RB offset_left =B*RB

[0418] Here, RB Offset_left Is It can be a value within B. RB Offset_right It can have a value within C.

[0419] UE3 can receive the following information from the network:

[0420] - N RB_new = N RB + RB Offset_left +RB Offset_right =N RB +(C+D)*RB

[0421] - RB offset_left =C*RB

[0422] Here, RB Offset_left Is It can be a value within C. RB Offset_right It can have a value within D.

[0423] Multicarrier operation also, the network is N RB_new ,RB offset_left , RB offset_right This can be communicated to each terminal. Based on this, the Outer RB region can be changed to the Inner RB region.

[0424] According to the disclosure of this specification, the MPR of the inner RB region can be applied to the MPR of the outer RB region.

[0425] The network can transmit an indication containing the following information to the terminal:

[0426] - N RB_new, RB offset_left, RB offset_right

[0427] RB offset_left, RB offset_right It can be freely transmitted to the terminal depending on the empty RB.

[0428] Based on the indication, the terminal can recognize / determine the extended New UE transmission bandwidth.

[0429] Based on the indication, the terminal (RB) of the extended New UE transmission bandwidth start +RB offset_left , L CRB Can recognize / determine ).

[0430] Based on the indication, the terminal can calculate / determine the MPR of the changed area.

[0431] The number of empty RBs to the left of the UE transmission bandwidth is RB offset_left It could be.

[0432] The number of empty RBs to the right of the UE transmission bandwidth is RB offset_right It could be.

[0433] RB offset_left, RB offset_right can be a value less than or equal to the distance from the UE Channel edge to the other BS Channel edge or the other UE Channel edge.

[0434] N RB_new is 'N RB + RB offset_left +RB offset_right It can be.

[0435] The following drawings are prepared to illustrate a specific example of the present specification. The names of specific devices or specific signals / messages / fields described in the drawings are presented as examples, and therefore the technical features of the present specification are not limited to the specific names used in the following drawings.

[0436] FIG. 25 illustrates the procedure of the UE for the disclosure of the present specification.

[0437] 1. A UE (User Equipment) can receive an indication from a network containing information about an extended transmission bandwidth and a first threshold.

[0438] The extended transmission bandwidth may be the sum of the existing transmission bandwidth, the first threshold, and the second threshold.

[0439] 2. i) that channels are not allocated to the left of the existing transmission bandwidth for the UE by the first threshold value, and ii) that channels are not allocated to the right of the existing transmission bandwidth by the second threshold value, the UE can determine a new MPR (Maximum Power Reduction) for the extended transmission bandwidth.

[0440] 3. Based on the new MPR above, the UE can transmit a signal.

[0441] The step of the UE determining the new MPR can be performed based on the first threshold and the second threshold.

[0442] The step of the UE determining the new MPR may include: the step of the UE determining the conditions for the new Inner RB allocation; and the step of the UE determining the new MPR based on the conditions for the new Inner RB allocation.

[0443] The step of the above UE transmitting a signal can be transmitted in transmitted resource blocks (transmitted RBs).

[0444] The conditions for the new Inner RB allocation above are: i) the value obtained by adding the first threshold to the lowest RB index of the transmission RBs is greater than or equal to the lower limit, ii) the value obtained by adding the first threshold to the lowest RB index of the transmission RBs is less than or equal to the upper limit, and iii) the smallest integer among integers greater than the value obtained by multiplying the number of RBs of the extended transmission bandwidth by 0.5 is greater than or equal to the number of RBs of the length of the continuous RB allocation of the extended transmission bandwidth.

[0445] The above lower limit may be the largest integer among integers smaller than the value obtained by multiplying the number of RBs of the length of the continuous RB allocation of the above-mentioned transmission bandwidth by 0.5, and 1.

[0446] The upper limit may be the number obtained by subtracting i) the lower limit and ii) the number of RBs of the length of the continuous RB allocation of the extended transmission bandwidth from the number of RBs of the extended transmission bandwidth.

[0447] The step of the above UE transmitting a signal can be transmitted in transmitted resource blocks (transmitted RBs).

[0448] The conditions for the new Inner RB allocation above are: i) the lowest RB index of the transmission RBs is greater than or equal to the new lower limit, ii) the lowest RB index of the transmission RBs is less than or equal to the new upper limit, iii) the smallest integer among integers greater than the value obtained by multiplying the number of RBs of the extended transmission bandwidth by 0.5 is greater than or equal to the number of RBs of the length of the continuous RB allocation of the extended transmission bandwidth.

[0449] The above new lower limit may be the number obtained by subtracting the first threshold value from the largest integer among integers smaller than the value obtained by multiplying the number of RBs of the length of the continuous RB allocation of the above extended transmission bandwidth by 0.5 and 1.

[0450] The new upper limit may be the number obtained by subtracting i) the lower limit, ii) the number of RBs of the length of the continuous RB allocation of the extended transmission bandwidth, and iii) the first threshold from the number of RBs of the extended transmission bandwidth.

[0451] The first threshold and the second threshold may be less than or equal to the number of RBs of the existing transmission bandwidth.

[0452] The above new lower limit may be greater than or equal to 1.

[0453] The above new upper limit may be less than or equal to the number of RBs obtained by subtracting the number of RBs in the length of the continuous RB allocation of the extended transmission bandwidth from the number of RBs in the existing transmission bandwidth.

[0454] The above UE can transmit capability information to the above network.

[0455] The above UE may have an existing MPR set.

[0456] The step of the above UE receiving the indication can be performed based on the transmission of the capability information.

[0457] The above capability information may include information that the UE can change the existing MPR to a new MPR based on the indication.

[0458] The above existing transmission bandwidth may include existing Inner RB allocation and existing Outer RB allocation.

[0459] The above-mentioned extended transmission bandwidth may include a new Inner RB allocation and a new Outer RB allocation.

[0460] The new Inner RB allocation above may include the existing Inner RB allocation and the existing Outer RB allocation.

[0461] The above UE may be a redcap UE or a non-redcap UE.

[0462] The first threshold value may be a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.5 or a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.25.

[0463] The second threshold value may be a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.5 or a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.25.

[0464] The following drawings are prepared to illustrate a specific example of the present specification. The names of specific devices or specific signals / messages / fields described in the drawings are presented as examples, and therefore the technical features of the present specification are not limited to the specific names used in the following drawings.

[0465] FIG. 26 illustrates the procedure of a network for the disclosure of the present specification.

[0466] 1. The network can determine i) that a channel is not allocated to the left of the existing transmission bandwidth for the UE by a first threshold value and ii) that a channel is not allocated to the right of the existing transmission bandwidth by a second threshold value.

[0467] Based on the above decision, the network can transmit an indication including information on an extended transmission bandwidth and a first threshold.

[0468] The extended transmission bandwidth may be the sum of the existing transmission bandwidth, the first threshold value, and the second threshold value.

[0469] The above network can receive capability information from the above UE.

[0470] The above UE may have an existing MPR set.

[0471] The step of the above network transmitting an indication can be performed based on receiving the capability information.

[0472] The above capability information may include information that the UE can change the existing MPR to a new MPR based on the indication.

[0473] The above existing transmission bandwidth may include existing Inner RB allocation and existing Outer RB allocation.

[0474] The above-mentioned extended transmission bandwidth may include a new Inner RB allocation and a new Outer RB allocation.

[0475] The new Inner RB allocation above may include the existing Inner RB allocation and the existing Outer RB allocation.

[0476] The above UE may be a redcap UE or a non-redcap UE.

[0477] The first threshold value may be a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.5 or a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.25.

[0478] The second threshold value may be a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.5 or a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.25.

[0479] Hereinafter, a device for performing communication according to some embodiments of the present specification will be described.

[0480] For example, the device may include a processor, a transceiver, and memory.

[0481] For example, the processor can be configured to be operablely coupled with memory and the processor.

[0482] The operation performed by the processor comprises: a step in which a UE (User Equipment) receives an indication from a network containing information regarding an extended transmission bandwidth and a first threshold; a step in which the UE determines a new MPR (Maximum Power Reduction) for the extended transmission bandwidth based on i) that a channel equal to the first threshold is not allocated to the left of the existing transmission bandwidth for the UE and ii) that a channel equal to the second threshold is not allocated to the right of the existing transmission bandwidth; and a step in which the UE transmits a signal based on the new MPR, wherein the step in which the UE determines the new MPR can be performed based on the first threshold and the second threshold.

[0483] Hereinafter, a processor of a device for providing communication according to some embodiments of the present specification will be described.

[0484] The operation performed by the processor comprises: a step in which a UE (User Equipment) receives an indication from a network containing information regarding an extended transmission bandwidth and a first threshold; a step in which the UE determines a new MPR (Maximum Power Reduction) for the extended transmission bandwidth based on i) that a channel equal to the first threshold is not allocated to the left of the existing transmission bandwidth for the UE and ii) that a channel equal to the second threshold is not allocated to the right of the existing transmission bandwidth; and a step in which the UE transmits a signal based on the new MPR, wherein the step in which the UE determines the new MPR can be performed based on the first threshold and the second threshold.

[0485] Hereinafter, a non-volatile computer-readable medium storing one or more instructions for providing mobile communication according to some embodiments of the present specification will be described.

[0486] According to some embodiments of the present disclosure, the technical features of the present disclosure may be directly implemented in hardware, software executed by a processor, or a combination of both. For example, a method performed by a wireless device in wireless communication may be implemented in hardware, software, firmware, or any combination thereof. For example, software may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or other storage media.

[0487] In some examples, storage media are coupled to the processor so that the processor can read information from the storage media. Alternatively, the storage media can be integrated into the processor. The processor and storage media can reside in an ASIC. In other examples, the processor and storage media can reside as separate components.

[0488] Computer-readable media may include tangible and non-volatile computer-readable storage media.

[0489] For example, non-volatile computer-readable media may include RAM (Random Access Memory) such as SDRAM (Synchronization Dynamic Random Access Memory), ROM (Read-Only Memory), and NVRAM (Non-Volatile Random Access Memory); read-only memory (EEPROM); flash memory; magnetic or optical data storage media; or other media that can be used to store instructions or data structures. Non-volatile computer-readable media may also include combinations of the above.

[0490] Additionally, the method described herein may be realized at least partially by a computer-readable communication medium that transmits or transmits code in the form of instructions or data structures and can be accessed, read, and / or executed by a computer.

[0491] According to some embodiments of the present disclosure, a non-transient computer-readable medium stores one or more instructions thereon. The stored one or more instructions can be executed by a processor of a base station.

[0492] One or more stored commands include the step of the UE (User Equipment) receiving an indication from a network containing information regarding an extended transmission bandwidth and a first threshold; the extended transmission bandwidth being the sum of an existing transmission bandwidth, the first threshold, and a second threshold, and the step of the UE determining a new MPR (Maximum Power Reduction) for the extended transmission bandwidth based on i) that no channel is allocated to the left of the existing transmission bandwidth for the UE equal to the first threshold and ii) that no channel is allocated to the right of the existing transmission bandwidth equal to the second threshold; and the step of the UE transmitting a signal based on the new MPR, wherein the step of the UE determining the new MPR can be performed based on the first threshold and the second threshold.

[0493] Specifications can have various effects.

[0494] For example, uplink coverage can be improved by reducing MPR.

[0495] The effects obtainable through the specific examples of this specification are not limited to those listed above. For example, there may be various technical effects that a person with ordinary skill in the related art can understand or derive from this specification. Accordingly, the specific effects of this specification are not limited to those explicitly described herein, but may include various effects that can be understood or derived from the technical features of this specification.

[0496] The claims described in this specification may be combined in various ways. For example, the technical features of the method claims in this specification may be combined to be implemented as a device, and the technical features of the device claims in this specification may be combined to be implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a device, and the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a method. Other implementations are within the scope of the following claims.

Claims

1. As a method, A step in which a UE (User Equipment) receives an indication from a network containing information regarding an extended transmission bandwidth and a first threshold; The above-mentioned extended transmission bandwidth is the sum of the existing transmission bandwidth, the first threshold value, and the second threshold value, and i) a step in which a channel is not allocated to the left of the existing transmission bandwidth for the UE by the first threshold value, and ii) a step in which a channel is not allocated to the right of the existing transmission bandwidth by the second threshold value, and the UE determines a new MPR (Maximum Power Reduction) for the extended transmission bandwidth; and Based on the above new MPR, the UE includes the step of transmitting a signal, and The step of the UE determining the new MPR is performed based on the first threshold and the second threshold.

2. In Paragraph 1, The step in which the above UE determines the new MPR is: The step in which the above UE determines the conditions for a new Inner RB allocation; and A method comprising the step of the UE determining the new MPR based on the conditions of the new Inner RB allocation.

3. In Paragraph 2, The step of the above UE transmitting a signal is transmitted in transmitted RBs (transmitted resource blocks), and The conditions for the new Inner RB allocation above are: i) the value obtained by adding the first threshold to the lowest RB index of the transmission RBs is greater than or equal to the lower limit, ii) the value obtained by adding the first threshold to the lowest RB index of the transmission RBs is less than or equal to the upper limit, and iii) the smallest integer among integers greater than the value obtained by multiplying the number of RBs of the extended transmission bandwidth by 0.5 is greater than or equal to the number of RBs of the length of the continuous RB allocation of the extended transmission bandwidth, and The above lower limit is the larger of 1 and the largest integer among integers smaller than the value obtained by multiplying the number of RBs of the length of the continuous RB allocation of the above extended transmission bandwidth by 0.5, and The method wherein the upper limit is the number obtained by subtracting i) the lower limit and ii) the number of RBs of the length of the continuous RB allocation of the extended transmission bandwidth from the number of RBs of the extended transmission bandwidth.

4. In Paragraph 2, The step of the above UE transmitting a signal is transmitted in transmitted RBs (transmitted resource blocks), and The conditions for the new Inner RB allocation above are: i) the lowest RB index of the transmission RBs is greater than or equal to the new lower limit, ii) the lowest RB index of the transmission RBs is less than or equal to the new upper limit, iii) the smallest integer among integers greater than the value obtained by multiplying the number of RBs of the extended transmission bandwidth by 0.5 is greater than or equal to the number of RBs of the length of the continuous RB allocation of the extended transmission bandwidth, and The above new lower limit is the number obtained by subtracting the first threshold value from the larger of the largest integer among integers smaller than the value obtained by multiplying the number of RBs of the length of the continuous RB allocation of the above extended transmission bandwidth by 0.5 and 1, and The new upper limit is the number obtained by subtracting i) the lower limit, ii) the number of RBs of the length of the continuous RB allocation of the extended transmission bandwidth, and iii) the first threshold from the number of RBs of the extended transmission bandwidth, and The first threshold and the second threshold are less than or equal to the number of RBs of the existing transmission bandwidth, and The above new lower limit is greater than or equal to 1, and The above new upper limit is less than or equal to the number of RBs obtained by subtracting the number of RBs in the length of the continuous RB allocation of the extended transmission bandwidth from the number of RBs in the existing transmission bandwidth.

5. In Paragraph 1, The above UE further includes the step of transmitting capability information to the network, The above UE has an existing MPR set, and The step of the above UE receiving the indication is performed based on the transmission of the capability information, and A method comprising the above capability information including information that the UE can change the existing MPR to a new MPR based on the above indication.

6. In Paragraph 1, The above existing transmission bandwidth includes the existing Inner RB allocation and the existing Outer RB allocation, and The above-mentioned extended transmission bandwidth includes a new Inner RB allocation and a new Outer RB allocation, and The above new Inner RB allocation is a method that includes the above existing Inner RB allocation and existing Outer RB allocation.

7. In Paragraph 1, The above UE is a method in which it is a redcap UE or a non-redcap UE.

8. In Paragraph 1, The first threshold value is a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.5 or a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.25, and A method in which the second threshold value is the value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.5 or the value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.

25.

9. As a method, A step in which the network determines i) that a channel is not allocated to the left of the existing transmission bandwidth for the UE by a first threshold amount, and ii) that a channel is not allocated to the right of the existing transmission bandwidth by a second threshold amount; Based on the above decision, the network transmits an indication including information regarding an extended transmission bandwidth and a first threshold value; A method in which the extended transmission bandwidth is the sum of the existing transmission bandwidth, the first threshold value, and the second threshold value.

10. In Paragraph 9, The above network further includes the step of receiving capability information from the UE, and The above UE has an existing MPR set, and The step of the above network transmitting an indication is performed based on receiving the capability information, and A method comprising the above capability information including information that the UE can change the existing MPR to a new MPR based on the above indication.

11. In Paragraph 9, The above existing transmission bandwidth includes the existing Inner RB allocation and the existing Outer RB allocation, and The above-mentioned extended transmission bandwidth includes a new Inner RB allocation and a new Outer RB allocation, and The above new Inner RB allocation is a method that includes the above existing Inner RB allocation and existing Outer RB allocation.

12. In Paragraph 9, The above UE is a method in which it is a redcap UE or a non-redcap UE.

13. In Paragraph 9, The first threshold value is a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.5 or a value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.25, and A method in which the second threshold value is the value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.5 or the value obtained by multiplying the number of RBs of the existing transmission bandwidth by 0.

25. As 14.UE, At least one memory; and At least one processor operablely connectable to the above at least one memory, The above at least one memory is a device in which the operation performed by the at least one processor based on execution by the at least one processor is a method according to any one of claims 1 to 8.

15. As a network, At least one memory; and At least one processor operablely connectable to the above at least one memory, A device in which the operation performed by the at least one processor based on the execution by the at least one memory is a method according to any one of claims 6 to 10.

16. As an apparatus in mobile communication, At least one processor; and It includes at least one memory that stores instructions and is operablely electrically connected to at least one processor, and A device in which the operation performed based on the execution of the above instruction by the at least one processor is a method according to any one of claims 1 to 8.

17. A non-volatile computer-readable storage medium that records instructions, A non-volatile computer-readable storage medium in which, when the above instructions are executed by one or more processors, the operation that causes the one or more processors to perform is a method according to any one of claims 1 to 8.

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