Method to configure power for en-dc

Abstract

A disclosure of this specification provides a method. The method comprises: determining, by the UE, power class for EN-DC (E-UTRA NR - Dual Connectivity), based on the UE power class, power for the E-UTRA, duplex method for the E-UTRA, power for the NR, duplex method for the NR, the DC1, the DC2, the Y and the Z, wherein the EN-DC is dual connectivity for the E-UTRA and the NR, determining, by the UE, a configured transmitted power for transmission via the EN-DC, based on the power class for the EN-DC.

Description

METHOD TO CONFIGURE POWER FOR EN-DC

[0001] The present disclosure relates to mobile communication.

[0002] 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE) is a technology for enabling high-speed packet communications. Many schemes have been proposed for the LTE objective including those that aim to reduce user and provider costs, improve service quality, and expand and improve coverage and system capacity. The 3GPP LTE requires reduced cost per bit, increased service availability, flexible use of a frequency band, a simple structure, an open interface, and adequate power consumption of a terminal as an upper-level requirement.

[0003] Work has started in International Telecommunication Union (ITU) and 3GPP to develop requirements and specifications for New Radio (NR) systems. 3GPP has to identify and develop the technology components needed for successfully standardizing the new RAT timely satisfying both the urgent market needs, and the more long-term requirements set forth by the ITU Radio communication sector (ITU-R) International Mobile Telecommunications (IMT)-2020 process. Further, the NR should be able to use any spectrum band ranging at least up to 100 GHz that may be made available for wireless communications even in a more distant future.

[0004] The NR targets a single technical framework addressing all usage scenarios, requirements and deployment scenarios including enhanced Mobile BroadBand (eMBB), massive Machine Type Communications (mMTC), Ultra-Reliable and Low Latency Communications (URLLC), etc. The NR shall be inherently forward compatible.

[0005] The UE can perform communication based on the configured transmission power.

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

[0007] FIG. 2 shows an example of wireless devices to which implementations of the present disclosure is applied.

[0008] FIG. 3 shows an example of UE to which implementations of the present disclosure is applied.

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

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

[0011] FIG.6 show an example of Frame structure type 1 according to a disclosure of the present specification.

[0012] FIG.7 show an example of behavior of UE configured transmission power for inter-band CA according to a disclosure of the present specification.

[0013] FIG. 8 is a flow chart showing an example of a procedure of a UE according to the present disclosure.

[0014] The following techniques, apparatuses, and systems may be applied to a variety of wireless multiple access systems. Examples of the multiple access systems include a Code Division Multiple Access (CDMA) system, a Frequency Division Multiple Access (FDMA) system, a Time Division Multiple Access (TDMA) system, an Orthogonal Frequency Division Multiple Access (OFDMA) system, a Single Carrier Frequency Division Multiple Access (SC-FDMA) system, and a Multi Carrier Frequency Division Multiple Access (MC-FDMA) system. CDMA may be embodied through radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000. TDMA may be embodied through radio technology such as Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), or Enhanced Data rates for GSM Evolution (EDGE). OFDMA may be embodied through radio technology such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or Evolved UTRA (E-UTRA). UTRA is a part of a Universal Mobile Telecommunications System (UMTS). 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE) is a part of Evolved UMTS (E-UMTS) using E-UTRA. 3GPP LTE employs OFDMA in downlink (DL) and SC-FDMA in uplink (UL). Evolution of 3GPP LTE includes LTE-Advanced (LTE-A), LTE-A Pro, and / or 5G New Radio (NR).

[0015] For convenience of description, implementations of the present disclosure are mainly described in regards to a 3GPP based wireless communication system. However, the technical features of the present disclosure are not limited thereto. For example, although the following detailed description is given based on a mobile communication system corresponding to a 3GPP based wireless communication system, aspects of the present disclosure that are not limited to 3GPP based wireless communication system are applicable to other mobile communication systems.

[0016] For terms and technologies which are not specifically described among the terms of and technologies employed in the present disclosure, the wireless communication standard documents published before the present disclosure may be referenced.

[0017] In the present disclosure, "A or B" may mean "only A", "only B", or "both A and B". In other words, "A or B" in the present disclosure may be interpreted as "A and / or B". For example, "A, B or C" in the present disclosure may mean "only A", "only B", "only C", or "any combination of A, B and C".

[0018] In the present disclosure, slash ( / ) or comma (,) may mean "and / or". For example, "A / B" may mean "A and / or B". Accordingly, "A / B" may mean "only A", "only B", or "both A and B". For example, "A, B, C" may mean "A, B or C".

[0019] In the present disclosure, "at least one of A and B" may mean "only A", "only B" or "both A and B". In addition, the expression "at least one of A or B" or "at least one of A and / or B" in the present disclosure may be interpreted as same as "at least one of A and B".

[0020] In addition, in the present disclosure, "at least one of A, B and C" may mean "only A", "only B", "only C", or "any combination of A, B and C". In addition, "at least one of A, B or C" or "at least one of A, B and / or C" may mean "at least one of A, B and C".

[0021] Also, parentheses used in the present disclosure may mean "for example". In detail, when it is shown as "control information (PDCCH)", "PDCCH" may be proposed as an example of "control information". In other words, "control information" in the present disclosure is not limited to "PDCCH", and "PDCCH" may be proposed as an example of "control information". In addition, even when shown as "control information (i.e., PDCCH)", "PDCCH" may be proposed as an example of "control information".

[0022] Technical features that are separately described in one drawing in the present disclosure may be implemented separately or simultaneously.

[0023] Although not limited thereto, various descriptions, functions, procedures, suggestions, methods and / or operational flowcharts of the present disclosure disclosed herein can be applied to various fields requiring wireless communication and / or connection (e.g., 5G) between devices.

[0024] Hereinafter, the present disclosure will be described in more detail with reference to drawings. The same reference numerals in the following drawings and / or descriptions may refer to the same and / or corresponding hardware blocks, software blocks, and / or functional blocks unless otherwise indicated.

[0025] FIG. 1 shows an example of a communication system to which implementations of the present disclosure is applied.

[0026] The 5G usage scenarios shown in FIG. 1 are only exemplary, and the technical features of the present disclosure can be applied to other 5G usage scenarios which are not shown in FIG. 1.

[0027] Three main requirement categories for 5G include (1) a category of enhanced Mobile BroadBand (eMBB), (2) a category of massive Machine Type Communication (mMTC), and (3) a category of Ultra-Reliable and Low Latency Communications (URLLC).

[0028] Referring to FIG. 1, the communication system 1 includes wireless devices 100a to 100f, Base Stations (BSs) 200, and a network 300. Although FIG. 1 illustrates a 5G network as an example of the network of the communication system 1, the implementations of the present disclosure are not limited to the 5G system, and can be applied to the future communication system beyond the 5G system.

[0029] The BSs 200 and the network 300 may be implemented as wireless devices and a specific wireless device may operate as a BS / network node with respect to other wireless devices.

[0030] The wireless devices 100a to 100f represent devices performing communication using Radio Access Technology (RAT) (e.g., 5G NR or LTE) and may be referred to as communication / radio / 5G devices. The wireless devices 100a to 100f may include, without being limited to, a robot 100a, vehicles 100b-1 and 100b-2, an eXtended Reality (XR) device 100c, a hand-held device 100d, a home appliance 100e, an Internet-of-Things (IoT) device 100f, and an Artificial Intelligence (AI) device / server 400. For example, the vehicles may include a vehicle having a wireless communication function, an autonomous driving vehicle, and a vehicle capable of performing communication between vehicles. The vehicles may include an Unmanned Aerial Vehicle (UAV) (e.g., a drone). The XR device may include an Augmented Reality (AR) / Virtual Reality (VR) / Mixed Reality (MR) device and may be implemented in the form of a Head-Mounted Device (HMD), a Head-Up Display (HUD) mounted in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance device, a digital signage, a vehicle, a robot, etc. The hand-held device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch or a smartglasses), and a computer (e.g., a notebook). The home appliance may include a TV, a refrigerator, and a washing machine. The IoT device may include a sensor and a smartmeter.

[0031] In the present disclosure, the wireless devices 100a to 100f may be called User Equipments (UEs). A UE may include, for example, a cellular phone, a smartphone, a laptop computer, a digital broadcast terminal, a Personal Digital Assistant (PDA), a Portable Multimedia Player (PMP), a navigation system, a slate Personal Computer (PC), a tablet PC, an ultrabook, a vehicle, a vehicle having an autonomous traveling function, a connected car, an UAV, an AI module, a robot, an AR device, a VR device, an MR device, a hologram device, a public safety device, an MTC device, an IoT device, a medical device, a FinTech device (or a financial device), a security device, a weather / environment device, a device related to a 5G service, or a device related to a fourth industrial revolution field.

[0032] The wireless devices 100a to 100f may be connected to the network 300 via the BSs 200. An AI technology may be applied to the wireless devices 100a to 100f and the wireless devices 100a to 100f may be connected to the AI server 400 via the network 300. The network 300 may be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, and a beyond-5G network. Although the wireless devices 100a to 100f may communicate with each other through the BSs 200 / network 300, the wireless devices 100a to 100f may perform direct communication (e.g., sidelink communication) with each other without passing through the BSs 200 / network 300. For example, the vehicles 100b-1 and 100b-2 may perform direct communication (e.g., Vehicle-to-Vehicle (V2V) / Vehicle-to-everything (V2X) communication). The IoT device (e.g., a sensor) may perform direct communication with other IoT devices (e.g., sensors) or other wireless devices 100a to 100f.

[0033] Wireless communication / connections 150a, 150b and 150c may be established between the wireless devices 100a to 100f and / or between wireless device 100a to 100f and BS 200 and / or between BSs 200. Herein, the wireless communication / connections may be established through various RATs (e.g., 5G NR) such as uplink / downlink communication 150a, sidelink communication (or Device-to-Device (D2D) communication) 150b, inter-base station communication 150c (e.g., relay, Integrated Access and Backhaul (IAB)), etc. The wireless devices 100a to 100f and the BSs 200 / the wireless devices 100a to 100f may transmit / receive radio signals to / from each other through the wireless communication / connections 150a, 150b and 150c. For example, the wireless communication / connections 150a, 150b and 150c may transmit / receive signals through various physical channels. To this end, at least a part of various configuration information configuring processes, various signal processing processes (e.g., channel encoding / decoding, modulation / demodulation, and resource mapping / de-mapping), and resource allocating processes, for transmitting / receiving radio signals, may be performed based on the various proposals of the present disclosure.

[0034] NR supports multiples numerologies (and / or multiple Sub-Carrier Spacings (SCS)) to support various 5G services. For example, if SCS is 15 kHz, wide area can be supported in traditional cellular bands, and if SCS is 30 kHz / 60 kHz, dense-urban, lower latency, and wider carrier bandwidth can be supported. If SCS is 60 kHz or higher, bandwidths greater than 24.25 GHz can be supported to overcome phase noise.

[0035] The NR frequency band may be defined as two types of frequency range, i.e., Frequency Range 1 (FR1) and Frequency Range 2 (FR2). The numerical value of the frequency range may be changed. For example, the frequency ranges of the two types (FR1 and FR2) may be as shown in Table 1 below. For ease of explanation, in the frequency ranges used in the NR system, FR1 may mean "sub 6 GHz range", FR2 may mean "above 6 GHz range," and may be referred to as millimeter Wave (mmW).

[0036] Frequency Range designationCorresponding frequency rangeSubcarrier SpacingFR1450MHz - 6000MHz15, 30, 60kHzFR224250MHz - 52600MHz60, 120, 240kHz

[0037] As mentioned above, the numerical value of the frequency range of the NR system may be changed. For example, FR1 may include a frequency band of 410MHz to 7125MHz as shown in Table 2 below. That is, FR1 may include a frequency band of 6GHz (or 5850, 5900, 5925 MHz, etc.) or more. For example, a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or more included in FR1 may include an unlicensed band. Unlicensed bands may be used for a variety of purposes, for example for communication for vehicles (e.g., autonomous driving).

[0038] Frequency Range designationCorresponding frequency rangeSubcarrier SpacingFR1410MHz - 7125MHz15, 30, 60kHzFR224250MHz - 52600MHz60, 120, 240kHz

[0039] Here, the radio communication technologies implemented in the wireless devices in the present disclosure may include NarrowBand IoT (NB-IoT) technology for low-power communication as well as LTE, NR and 6G. For example, NB-IoT technology may be an example of Low Power Wide Area Network (LPWAN) technology, may be implemented in specifications such as LTE Cat NB1 and / or LTE Cat NB2, and may not be limited to the above-mentioned names. Additionally and / or alternatively, the radio communication technologies implemented in the wireless devices in the present disclosure may communicate based on LTE-M technology. For example, LTE-M technology may be an example of LPWAN technology and be called by various names such as enhanced MTC (eMTC). For example, LTE-M technology may be implemented in at least one of the various specifications, such as 1) LTE Cat 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-bandwidth limited (non-BL), 5) LTE-MTC, 6) LTE Machine Type Communication, and / or 7) LTE M, and may not be limited to the above-mentioned names. Additionally and / or alternatively, the radio communication technologies implemented in the wireless devices in the present disclosure may include at least one of ZigBee, Bluetooth, and / or LPWAN which take into account low-power communication, and may not be limited to the above-mentioned names. For example, ZigBee technology may generate Personal Area Networks (PANs) associated with small / low-power digital communication based on various specifications such as IEEE 802.15.4 and may be called various names.

[0040] FIG. 2 shows an example of wireless devices to which implementations of the present disclosure is applied.

[0041] In FIG. 2, The first wireless device 100 and / or the second wireless device 200 may be implemented in various forms according to use cases / services. For example, {the first wireless device 100 and the second wireless device 200} may correspond to at least one of {the wireless device 100a to 100f and the BS 200}, {the wireless device 100a to 100f and the wireless device 100a to 100f} and / or {the BS 200 and the BS 200} of FIG. 1. The first wireless device 100 and / or the second wireless device 200 may be configured by various elements, devices / parts, and / or modules.

[0042] 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.

[0043] The processing chip 101 may include at least one processor, such a processor 102, and at least one memory, such as a memory 104. Additional and / or alternatively, the memory 104 may be placed outside of the processing chip 101.

[0044] The processor 102 may control the memory 104 and / or the transceiver 106 and may be adapted to implement the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts described in the present disclosure. For example, the processor 102 may process information within the memory 104 to generate first information / signals and then transmit radio signals including the first information / signals through the transceiver 106. The processor 102 may receive radio signals including second information / signals through the transceiver 106 and then store information obtained by processing the second information / signals in the memory 104.

[0045] The memory 104 may be operably connectable to the processor 102. The memory 104 may store various types of information and / or instructions. The memory 104 may store a firmware and / or a software code 105 which implements codes, commands, and / or a set of commands that, when executed by the processor 102, perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure. For example, the firmware and / or the software code 105 may implement instructions that, when executed by the processor 102, perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure. For example, the firmware and / or the software code 105 may control the processor 102 to perform one or more protocols. For example, the firmware and / or the software code 105 may control the processor 102 to perform one or more layers of the radio interface protocol.

[0046] Herein, the processor 102 and the memory 104 may be a part of a communication modem / circuit / chip designed to implement RAT (e.g., LTE or NR). The transceiver 106 may be connected to the processor 102 and transmit and / or receive radio signals through one or more antennas 108. Each of the transceiver 106 may include a transmitter and / or a receiver. The transceiver 106 may be interchangeably used with Radio Frequency (RF) unit(s). In the present disclosure, the first wireless device 100 may represent a communication modem / circuit / chip.

[0047] 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.

[0048] The processing chip 201 may include at least one processor, such a processor 202, and at least one memory, such as a memory 204. Additional and / or alternatively, the memory 204 may be placed outside of the processing chip 201.

[0049] The processor 202 may control the memory 204 and / or the transceiver 206 and may be adapted to implement the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts described in the present disclosure. For example, the processor 202 may process information within the memory 204 to generate third information / signals and then transmit radio signals including the third information / signals through the transceiver 206. The processor 202 may receive radio signals including fourth information / signals through the transceiver 106 and then store information obtained by processing the fourth information / signals in the memory 204.

[0050] The memory 204 may be operably connectable to the processor 202. The memory 204 may store various types of information and / or instructions. The memory 204 may store a firmware and / or a software code 205 which implements codes, commands, and / or a set of commands that, when executed by the processor 202, perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure. For example, the firmware and / or the software code 205 may implement instructions that, when executed by the processor 202, perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure. For example, the firmware and / or the software code 205 may control the processor 202 to perform one or more protocols. For example, the firmware and / or the software code 205 may control the processor 202 to perform one or more layers of the radio interface protocol.

[0051] Herein, the processor 202 and the memory 204 may be a part of a communication modem / circuit / chip designed to implement RAT (e.g., LTE or NR). The transceiver 206 may be connected to the processor 202 and transmit and / or receive radio signals through one or more antennas 208. Each of the transceiver 206 may include a transmitter and / or a receiver. The transceiver 206 may be interchangeably used with RF unit. In the present disclosure, the second wireless device 200 may represent a communication modem / circuit / chip.

[0052] Hereinafter, hardware elements of the wireless devices 100 and 200 will be described more specifically. One or more protocol layers may be implemented by, without being limited to, one or more processors 102 and 202. For example, the one or more processors 102 and 202 may implement one or more layers (e.g., functional layers such as Physical (PHY) layer, Media Access Control (MAC) layer, Radio Link Control (RLC) layer, Packet Data Convergence Protocol (PDCP) layer, Radio Resource Control (RRC) layer, and Service Data Adaptation Protocol (SDAP) layer). The one or more processors 102 and 202 may generate one or more Protocol Data Units (PDUs), one or more Service Data Unit (SDUs), messages, control information, data, or information according to the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure. The one or more processors 102 and 202 may generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data, or information according to the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure and provide the generated signals to the one or more transceivers 106 and 206. The one or more processors 102 and 202 may receive the signals (e.g., baseband signals) from the one or more transceivers 106 and 206 and acquire the PDUs, SDUs, messages, control information, data, or information according to the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure.

[0053] The one or more processors 102 and 202 may be referred to as controllers, microcontrollers, microprocessors, or microcomputers. The one or more processors 102 and 202 may be implemented by hardware, firmware, software, or a combination thereof. As an example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) may be included in the one or more processors 102 and 202. For example, the one or more processors 102 and 202 may be configured by a set of a communication control processor, an Application Processor (AP), an Electronic Control Unit (ECU), a Central Processing Unit (CPU), a Graphic Processing Unit (GPU), and a memory control processor.

[0054] The one or more memories 104 and 204 may be connected to the one or more processors 102 and 202 and store various types of data, signals, messages, information, programs, code, instructions, and / or commands. The one or more memories 104 and 204 may be configured by Random Access Memory (RAM), Dynamic RAM (DRAM), Read-Only Memory (ROM), electrically Erasable Programmable Read-Only Memory (EPROM), flash memory, volatile memory, non-volatile memory, hard drive, register, cash memory, computer-readable storage medium, and / or combinations thereof. The one or more memories 104 and 204 may be located at the interior and / or exterior of the one or more processors 102 and 202. The one or more memories 104 and 204 may be connected to the one or more processors 102 and 202 through various technologies such as wired or wireless connection.

[0055] The one or more transceivers 106 and 206 may transmit user data, control information, and / or radio signals / channels, mentioned in the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure, to one or more other devices. The one or more transceivers 106 and 206 may receive user data, control information, and / or radio signals / channels, mentioned in the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure, from one or more other devices. For example, the one or more transceivers 106 and 206 may be connected to the one or more processors 102 and 202 and transmit and receive radio signals. For example, the one or more processors 102 and 202 may perform control so that the one or more transceivers 106 and 206 may transmit user data, control information, or radio signals to one or more other devices. The one or more processors 102 and 202 may perform control so that the one or more transceivers 106 and 206 may receive user data, control information, or radio signals from one or more other devices.

[0056] The one or more transceivers 106 and 206 may be connected to the one or more antennas 108 and 208. Additionally and / or alternatively, the one or more transceivers 106 and 206 may include one or more antennas 108 and 208. The one or more transceivers 106 and 206 may be adapted to transmit and receive user data, control information, and / or radio signals / channels, mentioned in the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure, through the one or more antennas 108 and 208. In the present disclosure, the one or more antennas 108 and 208 may be a plurality of physical antennas or a plurality of logical antennas (e.g., antenna ports).

[0057] The one or more transceivers 106 and 206 may convert received user data, control information, radio signals / channels, etc., from RF band signals into baseband signals in order to process received user data, control information, radio signals / channels, etc., using the one or more processors 102 and 202. The one or more transceivers 106 and 206 may convert the user data, control information, radio signals / channels, etc., processed using the one or more processors 102 and 202 from the base band signals into the RF band signals. To this end, the one or more transceivers 106 and 206 may include (analog) oscillators and / or filters. For example, the one or more transceivers 106 and 206 can up-convert OFDM baseband signals to OFDM signals by their (analog) oscillators and / or filters under the control of the one or more processors 102 and 202 and transmit the up-converted OFDM signals at the carrier frequency. The one or more transceivers 106 and 206 may receive OFDM signals at a carrier frequency and down-convert the OFDM signals into OFDM baseband signals by their (analog) oscillators and / or filters under the control of the one or more processors 102 and 202.

[0058] Although not shown in FIG. 2, the wireless devices 100 and 200 may further include additional components. The additional components 140 may be variously configured according to types of the wireless devices 100 and 200. For example, the additional components 140 may include at least one of a power unit / battery, an Input / Output (I / O) device (e.g., audio I / O port, video I / O port), a driving device, and a computing device. The additional components 140 may be coupled to the one or more processors 102 and 202 via various technologies, such as a wired or wireless connection.

[0059] In the implementations of the present disclosure, a UE may operate as a transmitting device in Uplink (UL) and as a receiving device in Downlink (DL). In the implementations of the present disclosure, a BS may operate as a receiving device in UL and as a transmitting device in DL. Hereinafter, for convenience of description, it is mainly assumed that the first wireless device 100 acts as the UE, and the second wireless device 200 acts as the BS. For example, the processor(s) 102 connected to, mounted on or launched in the first wireless device 100 may be adapted to perform the UE behavior according to an implementation of the present disclosure or control the transceiver(s) 106 to perform the UE behavior according to an implementation of the present disclosure. The processor(s) 202 connected to, mounted on or launched in the second wireless device 200 may be adapted to perform the BS behavior according to an implementation of the present disclosure or control the transceiver(s) 206 to perform the BS behavior according to an implementation of the present disclosure.

[0060] In the present disclosure, a BS is also referred to as a node B (NB), an eNode B (eNB), or a gNB.

[0061] FIG. 3 shows an example of UE to which implementations of the present disclosure is applied.

[0062] Referring to FIG. 3, a UE 100 may correspond to the first wireless device 100 of FIG. 2.

[0063] A UE 100 includes a processor 102, a memory 104, a transceiver 106, one or more antennas 108, a power management module 141, a battery 142, a display 143, a keypad 144, a Subscriber Identification Module (SIM) card 145, a speaker 146, and a microphone 147.

[0064] The processor 102 may be adapted to implement the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure. The processor 102 may be adapted to control one or more other components of the UE 100 to implement the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure. Layers of the radio interface protocol may be implemented in the processor 102. The processor 102 may include ASIC, other chipset, logic circuit and / or data processing device. The processor 102 may be an application processor. The processor 102 may include at least one of DSP, CPU, GPU, a modem (modulator and demodulator). An example of the processor 102 may be found in SNAPDRAGONTMseries of processors made by Qualcomm®, EXYNOSTMseries of processors made by Samsung®, A series of processors made by Apple®, HELIOTMseries of processors made by MediaTek®, ATOMTMseries of processors made by Intel®or a corresponding next generation processor.

[0065] The memory 104 is operatively coupled with the processor 102 and stores a variety of information to operate the processor 102. The memory 104 may include ROM, RAM, flash memory, memory card, storage medium and / or other storage device. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, etc.) that perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed in the present disclosure. The modules can be stored in the memory 104 and executed by the processor 102. The memory 104 can be implemented within the processor 102 or external to the processor 102 in which case those can be communicatively coupled to the processor 102 via various means as is known in the art.

[0066] The transceiver 106 is operatively coupled with the processor 102, and transmits and / or receives a radio signal. The transceiver 106 includes a transmitter and a receiver. The transceiver 106 may include baseband circuitry to process radio frequency signals. The transceiver 106 controls the one or more antennas 108 to transmit and / or receive a radio signal.

[0067] The power management module 141 manages power for the processor 102 and / or the transceiver 106. The battery 142 supplies power to the power management module 141.

[0068] The display 143 outputs results processed by the processor 102. The keypad 144 receives inputs to be used by the processor 102. The keypad 144 may be shown on the display 143.

[0069] The SIM card 145 is an　integrated circuit　that is intended to　securely store the　International Mobile Subscriber Identity　(IMSI) number and its related　key, which are used to identify and authenticate subscribers on　mobile telephony　devices (such as　mobile phones　and　computers). It is also possible to store contact information on many SIM cards.

[0070] The speaker 146 outputs sound-related results processed by the processor 102. The microphone 147 receives sound-related inputs to be used by the processor 102.

[0071] <6G System General>

[0072] A 6G (wireless communication) system has purposes such as (i) very high data rate per device, (ii) a very large number of connected devices, (iii) global connectivity, (iv) very low latency, (v) decrease in energy consumption of battery-free IoT devices, (vi) ultra-reliable connectivity, and (vii) connected intelligence with machine learning capacity. The vision of the 6G system may include four aspects such as "intelligent connectivity", "deep connectivity", "holographic connectivity" and "ubiquitous connectivity", and the 6G system may satisfy the requirements shown in Table 3 below. That is, Table 3 shows the requirements of the 6G system.

[0073] Per device peak data rate1 TbpsE2E latency1 msMaximum spectral efficiency100bps / HzMobility supportUp to 1000km / hrSatellite integrationFullyAIFullyAutonomous vehicleFullyXRFullyHaptic CommunicationFully

[0074] The 6G system may have key factors such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), massive machine type communications (mMTC), AI integrated communication, tactile Internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion and enhanced data security.

[0075] FIG. 4 is a diagram showing an example of a communication structure that can be provided in a 6G system.

[0076] The 6G system will have 50 times higher simultaneous wireless communication connectivity than a 5G wireless communication system. URLLC, which is the key feature of 5G, will become more important technology by providing end-to-end latency less than 1 ms in 6G communication. At this time, the 6G system may have much better volumetric spectrum efficiency unlike frequently used domain spectrum efficiency. The 6G system may provide advanced battery technology for energy harvesting and very long battery life and thus mobile devices may not need to be separately charged in the 6G system. In addition, in 6G, new network characteristics may be as follows.

[0077] - Satellites integrated network: To provide a global mobile group, 6G will be integrated with satellite. Integrating terrestrial waves, satellites and public networks as one wireless communication system may be very important for 6G.

[0078] - Connected intelligence: Unlike the wireless communication systems of previous generations, 6G is innovative and wireless evolution may be updated from "connected things" to "connected intelligence". AI may be applied in each step (or each signal processing procedure which will be described below) of a communication procedure.

[0079] - Seamless integration of wireless information and energy transfer: A 6G wireless network may transfer power in order to charge the batteries of devices such as smartphones and sensors. Therefore, wireless information and energy transfer (WIET) will be integrated.

[0080] - Ubiquitous super 3-dimemtion connectivity: Access to networks and core network functions of drones and very low earth orbit satellites will establish super 3D connection in 6G ubiquitous.

[0081] In the new network characteristics of 6G, several general requirements may be as follows.

[0082] - Small cell networks: The idea of a small cell network was introduced in order to improve received signal quality as a result of throughput, energy efficiency and spectrum efficiency improvement in a cellular system. As a result, the small cell network is an essential feature for 5G and beyond 5G (5GB) communication systems. Accordingly, the 6G communication system also employs the characteristics of the small cell network.

[0083] - Ultra-dense heterogeneous network: Ultra-dense heterogeneous networks will be another important characteristic of the 6G communication system. A multi-tier network composed of heterogeneous networks improves overall QoS and reduce costs.

[0084] - High-capacity backhaul: Backhaul connection is characterized by a high-capacity backhaul network in order to support high-capacity traffic. A high-speed optical fiber and free space optical (FSO) system may be a possible solution for this problem.

[0085] - Radar technology integrated with mobile technology: High-precision localization (or location-based service) through communication is one of the functions of the 6G wireless communication system. Accordingly, the radar system will be integrated with the 6G network.

[0086] - Softwarization and virtualization: Softwarization and virtualization are two important functions which are the bases of a design process in a 5GB network in order to ensure flexibility, reconfigurability and programmability.

[0087] <Core implementation technology of 6G system>

[0088] Artificial Intelligence

[0089] Technology which is most important in the 6G system and will be newly introduced is AI. AI was not involved in the 4G system. A 5G system will support partial or very limited AI. However, the 6G system will support AI for full automation. Advance in machine learning will create a more intelligent network for real-time communication in 6G. When AI is introduced to communication, real-time data transmission may be simplified and improved. AI may determine a method of performing complicated target tasks using countless analysis. That is, AI may increase efficiency and reduce processing delay.

[0090] Time-consuming tasks such as handover, network selection or resource scheduling may be immediately performed by using AI. AI may play an important role even in M2M, machine-to-human and human-to-machine communication. In addition, AI may be rapid communication in a brain computer interface (BCI). An AI based communication system may be supported by meta materials, intelligent structures, intelligent networks, intelligent devices, intelligent recognition radios, self-maintaining wireless networks and machine learning.

[0091] Recently, attempts have been made to integrate AI with a wireless communication system in the application layer or the network layer, but deep learning have been focused on the wireless resource management and allocation field. However, such studies are gradually developed to the MAC layer and the physical layer, and, particularly, attempts to combine deep learning in the physical layer with wireless transmission are emerging. AI-based physical layer transmission means applying a signal processing and communication mechanism based on an AI driver rather than a traditional communication framework in a fundamental signal processing and communication mechanism. For example, channel coding and decoding based on deep learning, signal estimation and detection based on deep learning, multiple input multiple output (MIMO) mechanisms based on deep learning, resource scheduling and allocation based on AI, etc. may be included.

[0092] Machine learning may be used for channel estimation and channel tracking and may be used for power allocation, interference cancellation, etc. in the physical layer of DL. In addition, machine learning may be used for antenna selection, power control, symbol detection, etc. in the MIMO system.

[0093] Machine learning refers to a series of operations to train a machine in order to create a machine which can perform tasks which cannot be performed or are difficult to be performed by people. Machine learning requires data and learning models. In machine learning, data learning methods may be roughly divided into three methods, that is, supervised learning, unsupervised learning and reinforcement learning.

[0094] Neural network learning is to minimize output error. Neural network learning refers to a process of repeatedly inputting training data to a neural network, calculating the error of the output and target of the neural network for the training data, backpropagating the error of the neural network from the output layer of the neural network to an input layer in order to reduce the error and updating the weight of each node of the neural network.

[0095] Supervised learning may use training data labeled with a correct answer and the unsupervised learning may use training data which is not labeled with a correct answer. That is, for example, in case of supervised learning for data classification, training data may be labeled with a category. The labeled training data may be input to the neural network, and the output (category) of the neural network may be compared with the label of the training data, thereby calculating the error. The calculated error is backpropagated from the neural network backward (that is, from the output layer to the input layer), and the connection weight of each node of each layer of the neural network may be updated according to backpropagation. Change in updated connection weight of each node may be determined according to the learning rate. Calculation of the neural network for input data and backpropagation of the error may configure a learning cycle (epoch). The learning data is differently applicable according to the number of repetitions of the learning cycle of the neural network. For example, in the early phase of learning of the neural network, a high learning rate may be used to increase efficiency such that the neural network rapidly ensures a certain level of performance and, in the late phase of learning, a low learning rate may be used to increase accuracy.

[0096] The learning method may vary according to the feature of data. For example, for the purpose of accurately predicting data transmitted from a transmitter in a receiver in a communication system, learning may be performed using supervised learning rather than unsupervised learning or reinforcement learning.

[0097] The learning model corresponds to the human brain and may be regarded as the most basic linear model. However, a paradigm of machine learning using a neural network structure having high complexity, such as artificial neural networks, as a learning model is referred to as deep learning.

[0098] Neural network cores used as a learning method may roughly include a deep neural network (DNN) method, a convolutional deep neural network (CNN) method, a recurrent Boltzmman machine (RNN) method and a spiking neural networks (SNN). Such a learning model is applicable.

[0099] THz (Terahertz) Communication

[0100] A data rate may increase by increasing bandwidth. This may be performed by using sub-TH communication with wide bandwidth and applying advanced massive MIMO technology. THz waves which are known as sub-millimeter radiation, generally indicates a frequency band between 0.1 THz and 10 THz with a corresponding wavelength in a range of 0.03 mm to 3 mm. A band range of 100 GHz to 300 GHz (sub THz band) is regarded as a main part of the THz band for cellular communication. When the sub-THz band is added to the mmWave band, the 6G cellular communication capacity increases. 300 GHz to 3 THz of the defined THz band is in a far infrared (IR) frequency band. A band of 300 GHz to 3 THz is a part of an optical band but is at the border of the optical band and is just behind an RF band. Accordingly, the band of 300 GHz to 3 THz has similarity with RF.

[0101] FIG. 5 shows an example of an electromagnetic spectrum.

[0102] The main characteristics of THz communication include (i) bandwidth widely available to support a very high data rate and (ii) high path loss occurring at a high frequency (a high directional antenna is indispensable). A narrow beam width generated in the high directional antenna reduces interference. The small wavelength of a THz signal allows a larger number of antenna elements to be integrated with a device and BS operating in this band. Therefore, an advanced adaptive arrangement technology capable of overcoming a range limitation may be used.

[0103] Large-scale MIMO

[0104] One of core technologies for improving spectrum efficiency is MIMO technology. When MIMO technology is improved, spectrum efficiency is also improved. Accordingly, massive MIMO technology will be important in the 6G system. Since MIMO technology uses multiple paths, multiplexing technology and beam generation and management technology suitable for the THz band should be significantly considered such that data signals are transmitted through one or more paths.

[0105] Hologram Beamforming

[0106] Beamforming is a signal processing procedure that adjusts an antenna array to transmit radio signals in a specific direction. This is a subset of smart antennas or advanced antenna systems. Beamforming technology has several advantages, such as high signal-to-noise ratio, interference prevention and rejection, and high network efficiency. Hologram Beamforming (HBF) is a new beamforming method that differs significantly from MIMO systems because this uses a software-defined antenna. HBF will be a very effective approach for efficient and flexible transmission and reception of signals in multi-antenna communication devices in 6G.

[0107] Optical wireless technology

[0108] Optical wireless communication (OWC) is a form of optical communication that uses visible light, infrared light (IR), or ultraviolet light (UV) to transmit signals. OWC that operates in the visible light band (e.g., 390 to 750 nm) is commonly referred to as visible light communication (VLC). VLC implementations may utilize light-emitting diodes (LEDs). VLC can be used in a variety of applications, including wireless local area networks, wireless personal communications networks, and vehicular networks.

[0109] VLC has the following advantages over RF-based technologies. First, the spectrum occupied by VLC is free / unlicensed and can provide a wide range of bandwidth (THz-level bandwidth). Second, VLC rarely causes significant interference to other electromagnetic devices; therefore, VLC can be applied in sensitive electromagnetic interference applications such as aircraft and hospitals. Third, VLC has strengths in communications security and privacy. The transmission medium of VLC-based networks, i.e., visible light, cannot penetrate walls and other opaque obstacles. Therefore, the transmission range of VLC can be limited to indoors, which can protect users' privacy and sensitive information. Fourth, VLC can use any light source as a base station, eliminating the need for expensive base stations.

[0110] Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space, such as air, outer space, and vacuum, to wirelessly transmit data for telecommunications or computer networking. FSO can be used as a point-to-point OWC system on the ground. FSOs can operate in the near-infrared frequencies (750-1600 nm). Laser transmitters can be used in FSO implementations, and FSO can provide high data rates (e.g., 10 Gbit / s), offering a potential solution to backhaul bottlenecks.

[0111] These OWC technologies are planned for 6G communications, in addition to RF-based communications for any possible device-to-access network. These networks will access network-to-backhaul / fronthaul network connections. OWC technology has already been in use since 4G communication systems, but will be more widely used to meet the needs of 6G communication systems. OWC technologies such as light fidelity, visible light communication, optical camera communication, and FSO communication based on optical bands are already well-known technologies. Communication based on optical wireless technology can provide very high data rates, low latency, and secure communication.

[0112] LiDAR (Light Detection And Ranging) can also be utilized for ultra-high resolution 3D mapping in 6G communications based on the optical band. LiDAR is a remote sensing method that uses near-infrared, visible, and ultraviolet light to shine a light on an object, and the reflected light is detected by a light sensor to measure distance. LiDAR can be used for fully automated driving of cars.

[0113] FSO Backhaul Network

[0114] The characteristics of the transmitter and receiver of the FSO system are similar to those of an optical fiber network. Accordingly, data transmission of the FSO system similar to that of the optical fiber system. Accordingly, FSO may be a good technology for providing backhaul connection in the 6G system along with the optical fiber network. When FSO is used, very long-distance communication is possible even at a distance of 10,000 km or more. FSO supports mass backhaul connections for remote and non-remote areas such as sea, space, underwater and isolated islands. FSO also supports cellular base station connections.

[0115] NTN: Non-Terrestrial Networks

[0116] The 6G system will integrate terrestrial and aerial networks to support vertically expanding user communications. 3D BS will be provided via low-orbit satellites and UAVs. Adding a new dimension in terms of altitude and associated degrees of freedom makes 3D connectivity quite different from traditional 2D networks. NR considers Non-Terrestrial Networks (NTNs) as one way to do this. An NTN is a network or network segment that uses RF resources aboard a satellite (or UAS platform). There are two common scenarios for NTNs that provide access to user equipment: transparent payloads and regenerative payloads. The following are the basic elements of an NTN

[0117] - One or more sat-gateways connecting the NTN to a public data network

[0118] - GEO satellites are fed by one or multiple sat-gateways deployed across the satellite target coverage (e.g., regional or continental coverage). We assume that a UE in a cell is served by only one sat-gateway.

[0119] - Non-GEO satellites that are continuously served by one or multiple satellite gateways at a time. The system ensures service and feeder link continuity between successively serviced satellite gateways with a time duration sufficient to allow mobility anchoring and handover to proceed.

[0120] - The feeder link or radio link between the satellite gateway and the satellite (or UAS platform).

[0121] - The service link or radio link between the user equipment and the satellite (or UAS platform).

[0122] - Satellite (or UAS platform) capable of implementing transparent or regenerative (including onboard processing) payloads. Satellite (or UAS platform) generated beam A satellite (or UAS platform) generates multiple beams for a given service area, typically based on its field of view. The footprint of a beam is typically elliptical. The field of view of the satellite (or UAS platform) depends on the onboard antenna diagram and the minimum angle of attack.

[0123] - Transparent payload: Radio frequency filtering, frequency conversion, and amplification. Therefore, the waveform signal repeated by the payload remains unchanged.

[0124] - Regenerative payload: Radio frequency filtering, frequency conversion and amplification, demodulation / decryption, switching and / or routing, and coding / modulation. This is effectively the same as carrying all or part of the base station functions (e.g., gNB) on board a satellite (or UAS platform).

[0125] - Optionally, for satellite deployments, an inter-satellite link (ISL). This requires a regenerative payload on the satellite. ISL can operate at RF frequencies or in the optical band.

[0126] - The user equipment is serviced by the satellite (or UAS platform) within the targeted coverage area.

[0127] Typically, GEO satellites and UAS are used to provide continental, regional, or local services.

[0128] Typically, constellations in LEO and MEO are used to provide service in both the Northern and Southern Hemispheres. In some cases, constellations can also provide global coverage, including polar regions. The latter requires proper orbital inclination, sufficient beams generated, and links between satellites.

[0129] Quantum Communication

[0130] Quantum communication is a next-generation communication technology that can overcome the limitations of conventional communication, such as security and ultra-fast computation, by applying quantum mechanical properties to the field of communication. Quantum communication provides a means of generating, transmitting, processing, and storing information that cannot be expressed in the form of 0s and 1s according to binary bit information used in conventional communication technologies, or is difficult to express. In conventional communication technologies, wavelengths or amplitudes are used to transmit information between the sender and receiver, but in quantum communication, photons, the smallest unit of light, are used to transmit information between the sender and receiver. In particular, in the case of quantum communication, quantum uncertainty and quantum irreversibility can be used for the polarization or phase difference of photons (light), so quantum communication has the characteristic of being able to communicate with perfect security. Quantum communication may also enable ultrafast communication using quantum entanglement under certain conditions.

[0131] Cell-free Communication

[0132] The tight integration of multiple frequencies and heterogeneous communication technologies is crucial for 6G systems. As a result, users will be able to seamlessly move from one network to another without having to create any manual configurations on their devices. The best network is automatically selected from the available communication technologies. This will break the limitations of the cell concept in wireless communications. Currently, the movement of users from one cell to another causes too many handovers in dense networks, resulting in handover failures, handover delays, data loss, and ping-pong effects. 6G cell-free communications will overcome all of these and provide better QoS.

[0133] Cell-free communication is defined as "a system in which multiple geographically distributed antennas (APs) cooperatively serve a small number of terminals using the same time / frequency resources with the help of a fronthaul network and a CPU." A single terminal is served by a set of multiple APs, called an AP cluster. There are several ways to form AP clusters, among which the method of organizing AP clusters with APs that can significantly contribute to improving the reception performance of a terminal is called the terminal-centric clustering method, and the configuration is dynamically updated as the terminal moves. This device-centric AP clustering technique ensures that the device is always at the center of the AP cluster and is therefore immune to inter-cluster interference that can occur when a device is located at the boundary of an AP cluster. This cell-free communication will be achieved through multi-connectivity and multi-tier hybrid technologies and different heterogeneous radios in the device.

[0134] Integration of Wireless Information and Energy Transfer (WIET)

[0135] WIET uses the same field and wave as a wireless communication system. In particular, a sensor and a smartphone will be charged using wireless power transfer during communication. WIET is a promising technology for extending the life of battery charging wireless systems. Therefore, devices without batteries will be supported in 6G communication.

[0136] Integration of Wireless Communication and Sensing

[0137] An autonomous wireless network is a function for continuously detecting a dynamically changing environment state and exchanging information between different nodes. In 6G, sensing will be tightly integrated with communication to support autonomous systems.

[0138] Integrated Access and Backhaul Network

[0139] In 6G, the density of access networks will be enormous. Each access network is connected by optical fiber and backhaul connection such as FSO network. To cope with a very large number of access networks, there will be a tight integration between the access and backhaul networks.

[0140] Big Data Analysis

[0141] Big data analysis is a complex process for analyzing various large data sets or big data. This process finds information such as hidden data, unknown correlations, and customer disposition to ensure complete data management. Big data is collected from various sources such as video, social networks, images and sensors. This technology is widely used for processing massive data in the 6G system.

[0142] Reconfigurable Intelligent Metasurface

[0143] There has been a large body of research that considers the radio environment as a variable to be optimized along with the transmitter and receiver. The radio environment created by this approach is referred to as a Smart Radio Environment (SRE) or Intelligent Radio Environment (IRE) to emphasize its fundamental difference from past design and optimization criteria. Various terms have been proposed for reconfigurable intelligent antenna (or intelligent reconfigurable antenna technology) technologies to enable SRE, including Reconfigurable Metasurfaces, Smart Large Intelligent Surfaces (SLIS), Large Intelligent Surfaces (LIS), Reconfigurable Intelligent Surface (RIS), and Intelligent Reflecting Surface (IRS).

[0144] In the case of THz band signals, there are many shadowed areas caused by obstacles due to the strong straightness of the signal, and RIS technology is important to expand the communication area by installing RIS near these shadowed areas to enhance communication stability and provide additional value-added services. RIS is an artificial surface made of electromagnetic materials that can alter the propagation of incoming and outgoing radio waves. Although RIS can be seen as an extension of massive MIMO, it has a different array structure and operating mechanism than massive MIMO. RIS has the advantage of low power consumption because it operates as a reconfigurable reflector with passive elements, i.e., it only passively reflects signals without using active RF chains. Furthermore, each of the passive reflectors in the RIS must independently adjust the phase shift of the incoming signal, which can be advantageous for the wireless communication channel. By properly adjusting the phase shift through the RIS controller, the reflected signals can be gathered at the target receiver to boost the received signal power.

[0145] In addition to reflecting radio signals, there are also RISs that can tune transmission and refractive properties, and these RISs are often used for outdoor to indoor (O2I) applications. Recently, STAR-RIS (Simultaneous Transmission and Reflection RIS), which provides transmission at the same time as reflection, has also been actively researched.

[0146] Metaverse

[0147] Metaverse is a combination of the words "meta" meaning virtual, transcendent, and "universe" meaning space. Generally speaking, the term is used to describe a three-dimensional virtual space in which social and economic activities are the same as in the real world.

[0148] Extended Reality (XR), a key technology that enables the metaverse, is the fusion of the virtual and the real, which can extend the experience of reality and provide a unique immersive experience. The high bandwidth and low latency of 6G networks will enable users to experience more immersive virtual reality (VR) and augmented reality (AR) experiences.

[0149] Autonomous Driving (Self-driving)

[0150] For fully autonomous driving, vehicles need to communicate with each other to alert each other to dangerous situations, or with infrastructure such as parking lots and traffic lights to check information such as the location of parking information and signal change times. Vehicle-to-Everything (V2X), a key element in building an autonomous driving infrastructure, is a technology that enables vehicles to communicate and share information with various elements on the road, such as vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I), in order to drive autonomously.

[0151] In order to maximize the performance of autonomous driving and ensure high safety, fast transmission speeds and low latency technologies are essential. In addition, in the future, autonomous driving will go beyond delivering warnings and guidance messages to the driver to actively intervene in the operation of the vehicle and directly control the vehicle in dangerous situations, and the amount of information that needs to be transmitted and received will be enormous, so 6G is expected to maximize autonomous driving with faster transmission speeds and lower latency than 5G.

[0152] Unmanned Aerial Vehicle (UAV)

[0153] An unmanned aerial vehicle (UAV) or drone will be an important factor in 6G wireless communication. In most cases, a high-speed data wireless connection is provided using UAV technology. A base station entity is installed in the UAV to provide cellular connectivity. UAVs have certain features, which are not found in fixed base station infrastructures, such as easy deployment, strong line-of-sight links, and mobility-controlled degrees of freedom. During emergencies such as natural disasters, the deployment of terrestrial telecommunications infrastructure is not economically feasible and sometimes services cannot be provided in volatile environments. The UAV can easily handle this situation. The UAV will be a new paradigm in the field of wireless communications. This technology facilitates the three basic requirements of wireless networks, such as eMBB, URLLC and mMTC. The UAV can also serve a number of purposes, such as network connectivity improvement, 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 important technologies for 6G communication.

[0154] Block-chain

[0155] A blockchain will be important technology for managing large amounts of data in future communication systems. The blockchain is a form of distributed ledger technology, and distributed ledger is a database distributed across numerous nodes or computing devices. Each node duplicates and stores the same copy of the ledger. The blockchain is managed through a peer-to-peer (P2P) network. This may exist without being managed by a centralized institution or server. Blockchain data is collected together and organized into blocks. The blocks are connected to each other and protected using encryption. The blockchain completely complements large-scale IoT through improved interoperability, security, privacy, stability and scalability. Accordingly, the blockchain technology provides several functions such as interoperability between devices, high-capacity data traceability, autonomous interaction of different IoT systems, and large-scale connection stability of 6G communication systems.

[0156] <MOP (maximum output power)>

[0157] According to one embodiment of the present disclosure, MOP (maximum output power) is described. The embodiment according to MOP (maximum output power) may be combined with various embodiments of the present disclosure.

[0158] The terminal may transmit its power class information to the NW as 'per band' or 'per band combination' (in the case of CA, DC). In addition, the terminal may transmit the maximum output power corresponding to its power class to the NW.

[0159] - FR1: power class 1 (31dBm), power class 1.5 (29dBm), power class 2 (26dBm), power class 3 (23dBm), power class 5 (20dBm)

[0160] - FR2: power class 1, power class 2, power class 3, power class 4, power class 5, power class 6, power class 7

[0161] In the case of FR2, MOP must satisfy maximum peak EIRP and spherical coverage and corresponding EIRP.

[0162] There are standards that limit the transmission power of a terminal so that it does not harm the human body or affect medical equipment. For example, there is a SAR (Specific Absorption Rate) standard in FR1, and an MPE (Maximum permissible Exposure) standard in FR2. The MOP may be changed so that the terminal can satisfy these standards. The MOP change can be performed considering the uplink duty cycle.

[0163] MOP applied standard scenarios:

[0164] - FR1 MOP in a single carrier, CA / EN-DC / NE-DC, a single carrier (side link), inter-band con-current operation (side link), intra-band con-current operation (side link)

[0165] - FR2 MOP in a single carrier, CA

[0166] Proposed method in the present specification may be related to method how to configure the transmitted power for Power Class 1.5 UE or Power Class 2 UE supporting inter-band EN-DC.

[0167] Power class may be follows:

[0168] - Power Class 1.5: maximum output power of 29dBm

[0169] - Power Class 2: maximum output power of 26dBm

[0170] 1. UE Capability Parameters

[0171] In the present specification, UE capability parameters are described later.

[0172] Table 4 shows BandCombinationList parameters.

[0173]

[0174]

[0175]

[0176]

[0177]

[0178] Table 5 shows BandNR parameters

[0179]

[0180]

[0181]

[0182]

[0183] Table 6 shows Agreed UE capability list in R4-2403842.

[0184]

[0185]

[0186] Table 7 shows CA-ParametersNR.

[0187]

[0188]

[0189]

[0190] Table 8 shows FeatureSetUplink parameters.

[0191]

[0192]

[0193]

[0194]

[0195]

[0196]

[0197]

[0198] Table 9 shows FeatureSetUplinkPerCC parameters.

[0199]

[0200] Table 10 shows MRDC-Parameters.

[0201]

[0202]

[0203]

[0204]

[0205]

[0206]

[0207]

[0208]

[0209]

[0210]

[0211]

[0212]

[0213]

[0214] Table 11 shows Phy-Parameters.

[0215]

[0216] Table 12 shows CarrierAggregationVariant.

[0217]

[0218]

[0219] 2. Transmitter power for DC

[0220] 2-(1) UE maximum output power for DC

[0221] 2-(1)-1. Inter-band EN-DC within FR1

[0222] For inter-band EN-DC of E-UTRA and NR in FR1, the following UE Power Classes define the maximum output power for any transmission bandwidth within the aggregated channel bandwidth. The maximum output power may be measured as the sum of the maximum output power at each UE antenna connector. The period of measurement may be at least one sub frame (1ms). UE maximum output power may be measured over all component carriers from different bands. If each band has separate antenna connectors, maximum output power may be measured as the sum of maximum output power at each UE antenna connector.

[0223] Table 13 shows Maximum output power for inter-band EN-DC (two bands).

[0224]

[0225]

[0226]

[0227]

[0228]

[0229]

[0230]

[0231]

[0232]

[0233]

[0234]

[0235]

[0236]

[0237]

[0238]

[0239]

[0240] band combination and the supported power class may enable higher maximum output power than that of the default power class:

[0241] - if the field of UE capability maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is absent and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 30% (The exact evaluation period is no less than one radio frame); or

[0242] - if the field of UE capability maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is not absent and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0243] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default power class or lower;

[0244] -- shall apply all requirements for the default power class to the supported power class and set the configured transmitted power as specified sub-clause 2-(2);

[0245] - Else if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 as defined in TS 38.331; or

[0246] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 30% when maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is absent. (The exact evaluation period is no less than one radio frame):

[0247] -- shall apply all requirements for the supported power class and set the configured transmitted power class as specified in sub-clause 2-(2).

[0248] If a UE supports a different power class than the default UE power class for an E-UTRA FDD and NR TDD EN-DC band combination and the supported power class may enable higher maximum output power than that of the default power class:

[0249] If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0250] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class, and the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0251] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class, and the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame)

[0252] -- shall apply all requirements for the supported power class and set the configured transmitted power class as specified in sub-clause 2-(2).

[0253] - else

[0254] -- shall apply all requirements for the default power class and set the configured transmitted power as specified sub-clause 2-(2);

[0255] else

[0256] -- shall apply all requirements for the supported power class and set the configured transmitted power as specified sub-clause 2-(2);

[0257] 2-(2)Configured output power for DC

[0258] 2-(2)-1. Configured output power level (Inter-band EN-DC within FR1)

[0259] For inter-band dual connectivity with one uplink serving cell or more than one uplink serving cells configured for intra-band UL CA on the E-UTRA CG and one uplink serving cell on the NR CG or more than one uplink serving cells configured for intra-band UL CA, the UE may be allowed to set its configured maximum output power PCMAX,c(i),ifor serving cell c(i) of CG i, i = 1,2, and its total configured maximum transmission power for EN-DC operation, PTotalEn-DC. For EN-DC with more than one uplink serving cells configured for intra-band UL CA on the E-UTRA CG, the PCMAXmay apply to the entire E-UTRA CG. For EN-DC with more than one uplink serving cells configured for intra-band UL CA on the NR CG, the PCMAXmayapply to the entire NR CG. For a UE configured with EN-DC and serving cell frame structure type 1, if the UE is configured with subframeAssignment-r15 for the serving cell and E-UTRA Pcell is FDD, the UE may not be expected to be configured with more than one serving cells in the uplink.

[0260] The configured maximum output power PCMAX_ E-UTRA,c(p) in sub-frame p for the configured E-UTRA uplink carrier(s) may be set within the bounds:

[0261] - PCMAX_L_ E-UTRA,c(p) ≤ PCMAX_ E-UTRA,c(p) ≤ PCMAXH _ E-UTRA,c(p)

[0262] where PCMAX_L_ E-UTRA,candPCMAXH _ E-UTRA,care the limits for a serving cell c as specified in TS 36.101 [4] clause 6.2.5 modified by PLTEas follows:

[0263] - PCMAX_L_ E-UTRA,c= MIN { PEMAX, EN-DC, (PPowerClass, EN-DC- ΔPPowerClass,EN-DC), MIN(PEMAX,c, PLTE) - ΔtC_ E-UTRA, c, (PPowerClass,E-UTRA- ΔPPowerClass,E-UTRA) - MAX(MPRc+ A-MPRc+ ΔTIB,c+ ΔtC_ E-UTRA, c+ ΔTProSe, P-MPRc)}

[0264] - PCMAXH _ E-UTRA,c= MIN {PEMAX,c, PEMAX, EN-DC, (PPowerClass, EN-DC- ΔPPowerClass,EN-DC), PLTE, PPowerClass,E-UTRA- ΔPPowerClass,E-UTRA}

[0265] For EN-DC with more than one uplink serving cells configured for intra-band UL CA on the E-UTRA CG, PCMAX_L_ E-UTRA,candPCMAXH _ E-UTRA,cmay be the limits for the E-UTRA CG as specified in TS　36.101　[4] clause　6.2.5A modified by PLTEas follows:

[0266] - PCMAX_L_ E-UTRA,c= MIN{10 log10ΣpEMAX,c- ΔTC, (PPowerClass,E-UTRA- ΔPPowerClass,E-UTRA) - MAX(MPR + A-MPR + ΔTIB,c+ ΔTC+ ΔTProSe, P-MPR), PLTE, PPowerClass,EN-DC}

[0267] - PCMAXH _ E-UTRA,c= MIN{10 log10ΣpEMAX,c, PPowerClass,E-UTRA, PLTE, PPowerClass,EN-DC}

[0268] The configured maximum output power PCMAX,f,c,NR(q) in physical-channel q for the configured NR carrier may be set within the bounds:

[0269] - PCMAX_L,f,c,NR(q) ≤ PCMAX,f,c,NR(q) ≤ PCMAX_H,f,c,NR(q)

[0270] where PCMAX_L,f,c,NRandPCMAX_H,f,c,NRare the limits for a serving cell c as specified in clause 6.2.4 of TS 38.101-1 V17.12.0[2] modified as follows:

[0271] - PCMAX_L,f,c,NR= MIN { PEMAX, EN-DC, (PPowerClass, EN-DC- ΔPPowerClass,EN-DC), MIN(PEMAX,c, PNR) - ΔTC_NR, c, (PPowerClass,NR- ΔPPowerClass,NR) - MAX(MAX(MPRc, A-MPRc)+ ΔTIB,c+ ΔTC_NR, c+ ΔTRxSRS, P-MPRc) }

[0272] - PCMAX_H,f,c,NR= MIN {PEMAX,c, PEMAX, EN-DC, (PPowerClass, EN-DC- ΔPPowerClass,EN-DC), PNR, PPowerClass,NR- ΔPPowerClass,NR}

[0273] For EN-DC with more than one uplink serving cells configured for intra-band UL CA on the NR CG, PCMAX_L,f,c, NRandPCMAX_H,f,c, NRmay be the limits for the NR CG as specified in [2] subclause 6.2A.4 modified by PNRas follows:

[0274] - PCMAX_L,f,c,NR= MIN{10 log10ΣpEMAX,c- ΔTC, PEMAX,CA, PPowerClass,NR- MAX(MPR + A-MPR + ΔTIB,c+ ΔT_NR ,C+ ΔTRxSRS, P-MPR), PNR, PPowerClass,EN-DC}

[0275] - PCMAX_H,f,c,NR= MIN{10 log10ΣpEMAX,c, PEMAX,CA, PPowerClass,NR, PNR, PPowerClass,EN-DC}

[0276] where

[0277] - PEMAX,EN-DCis the value given by the field p-maxUE-FR1 of the RRCConnectionReconfiguration-v1530 IE as defined in TS 36.331 [8];

[0278] - If more than one E-UTRA uplink serving cell is configured as intra-band UL CA in the E-UTRA CG, PPowerClassrefers to the maximum output power of the E-UTRA intra-band CA power class given in Table 6.2.2A-1 of TS　36.101　[4],

[0279] - If more than one NR uplink serving cell is configured as intra-band UL CA in the NR CG, PPowerClassrefers to the maximum output power of the NR intra-band CA power class given in sub clause 6.2A.1 of [2],

[0280] - PLTEis the value given by the field p-maxEUTRA-r15 of the RRCConnectionReconfiguration-v1510 IE as defined in TS 36.331 [8];

[0281] - If more than one E-UTRA uplink serving cell is configured as intra-band UL CA in the E-UTRA CG, MPRc= MPR and A-MPRc= A-MPR with MPR and A-MPR specified in clause 6.2.3A and clause 6.2.4A of TS　36.101　[4] respectively. There is one power management term for the UE, denoted P-MPR, and P-MPRc= P-MPR. PCMAX_ E-UTRA,cis calculated under the assumption that the transmit power is increased by the same amount in dB on all component carriers within the E-UTRA CG.

[0282] - If more than one NR uplink serving cell is configured as intra-band UL CA in the NR CG, MPRcand A-MPRcare determined by subclause 6.2.2 of [2]. There is one power management term for the UE, denoted P-MPR, and P-MPRc= P-MPR.

[0283] - PNRis the value given by the field p-NR-FR1 of the PhysicalCellGroupConfig IE as defined in TS　38.331　[9];

[0284] - Δtc_E-UTRA, c= 1.5 dB when NOTE 2 in Table 6.2.2-1 in TS 36.101 [4] applies for a serving cell c, otherwise ΔTC_ E-UTRA,c= 0 dB;

[0285] - ΔTC_NR,c= 1.5dB when NOTE 3 in Table 6.2.1-1 in TS 38.101-1 V17.12.0[2] applies for a serving cell c, otherwise ΔTC_NR,c= 0 dB; ΔTC_NR,Cis the highest value ΔTC_NR,Camong all serving cells c if more than one NR uplink serving cell is configured as intra-band UL CA in the NR CG;

[0286] - PPowerClass, EN-DCis the nominal UE power class indicated by PowerClass defined in clause 6.2B.1.3 for inter-band EN-DC; if the UE indicates higherPowerLimit-r17 and ΔPPowerClass,EN-DC= 0, PPowerClass,EN-DCis replaced by the sum of the linear powers of PPowerClass,NRand PPowerClass,E-UTRAconverted to dB;

[0287] - ΔPPowerClass,EN-DC= 3 dB for a power class 2 capable EN-DC UE when requirements of default power class had been applied as specified in sub-clause 6.2B.1; otherwise ΔPPowerClass,EN-DC= 0 dB;

[0288] - NOTE: ΔPPowerClass,EN-DCreporting capability XXX-r18, as defined in TS 38.306, is used to report ΔPPowerClass,EN-DCwhen the network configures the UE with the reporting and the reporting is triggered only by uplink duty cycle exceedance or by return to the powerClass after the duty cycle exceedance.

[0289] - PPowerClass,NRis the nominal UE power of the power class indicated by ue-PowerClass that the UE supports for the NR band and for NR intra-band UL CA of the EN-DC combination as defined in clause 6.2.1 or 6.2A1.1 of 38.101-1 [2]; in case IE powerClassNRPart-r16 as defined in TS 38.331 [9] is indicated, PPowerClass,NRshould use that value instead;

[0290] - ΔPPowerClass,NRis 3 dB or 0 dB according to clause 6.2.4 of TS 38.101-1 V17.12.0[2] for a UE that supports power class 2 in the NR band of the EN-DC combination as defined in clause 6.2.1 of TS 38.101-1 V17.12.0[2];

[0291] - PPowerClass,E-UTRAis the nominal UE power of the power class indicated by ue-PowerClass-N-r13 that the UE supports for the E-UTRA band or indicated by ue-CA-PowerClass-N E-UTRA intra-band UL CA of the EN-DC combination as defined in clause 6.2.2 or 6.2.2A of 36.101 [4];

[0292] - ΔPPowerClass,E-UTRAis 3 dB or 0 dB according to clause 6.2.5 of TS 36.101 [4] for a UE that supports power class 2 in the E-UTRA band of the EN-DC combination as defined in clause 6.2.2 of TS 36.101 [4];

[0293] - ΔTIB,cspecified in clause 6.2B.4.2.3 for EN-DC, the individual Power Class defined in table 13 and any other additional power reductions parameters specified in clauses 6.2B.2 and 6.2B.3for EN-DC are applicable to PCMAX_ E-UTRA,cand PCMAX,f,c,NRevaluations.

[0294] - ΔTRxSRSis the highest value among all serving cells c.

[0295] If the transmissions from NR and E-UTRA do not overlap, then the complete clauses for configured transmitted power for E-UTRA and NR respectively from their own specifications apply with the modifications specified above. The lower value between PPowerClass, EN-DCor PEMAX, EN-DCshall not be exceeded at any time by UE.

[0296] PTotalEN-DC= 10log10(linear value of PTotalEN-DC) with PTotalEN-DCthe configured maximum transmission power for EN-DC operation as specified in clause 7.6 of TS 38.213

[0010] .

[0297] The total configured maximum transmission power for both synchronous and non-synchronous operation may be:

[0298] - PTotalEN-DC= MIN { PEMAX, EN-DC,PPowerClass, EN-DC- ΔPPowerClass, EN-DC}

[0299] If the UE does not support dynamic power sharing,

[0300] - PTotalEN-DC= MIN { PEMAX, EN-DC,PPowerClass, EN-DC- ΔPPowerClass, EN-DC} + 0.3 dB

[0301] If the EN-DC UE does not support dynamic power sharing, then the complete clauses for configured transmitted power for E-UTRA and NR respectively from their own specifications TS 36.101 [4] and TS 38.101-1 V17.12.0[2] respectively apply with the modifications specified above and PTotalEN-DCapplies.

[0302] When a UE supporting dynamic sharing is configured for overlapping E-UTRA uplink and NR uplink transmissions, the UE can set its configured maximum output power PCMAX_ E-UTRA,cand PCMAX,f,c,NRfor the configured E-UTRA and NR uplink carriers, respectively, and its configured maximum transmission power for EN-DC operation, linear value of PTotalEN-DC, as specified above.

[0303] The measured total maximum output power PUMAXover both CGs / RATs, measured over the transmission reference time duration may be:

[0304] - PUMAX= 10 log10[pUMAX,c,E-UTRA+ pUMAX,c,NR],

[0305] where pUMAX,c,E-UTRAand pUMAX,c,NRmay denote the measured output power of serving cell c for E-UTRA and NR respectively, expressed in linear scale.

[0306] The measured total configured maximum output power PUMAXmay be within the following bounds:

[0307] - PCMAX_L-TLOW(PCMAX_L) ≤ PUMAX≤ PCMAX_H+ THIGH(PCMAX_H)

[0308] with the tolerances TLOW(PCMAX_H) and THIGH(PCMAX_H) for applicable values of PCMAXspecified in Table 15.

[0309] When an UL subframe transmission p from E-UTRA overlap with a physical-channel q from the NR, then for PUMAXevaluation, the E-UTRA subframe p may be taken as reference period TREFand always considered as the reference measurement duration and the following rules are applicable.

[0310] TREFand Tevalare specified in Table 14 when same or different subframe and physical-channel durations may be used in aggregated carriers. The lesser of PPowerClass ,EN-DCand PEMAX,EN-DCmay not be exceeded by the UE during any evaluation period of time where PPowerClass ,EN-DCmay be replaced by the sum of the linear powers of PPowerClass,NRand PPowerClass,E-UTRAconverted to dB if the UE indicates higherPowerLimit-r17.

[0311] Table 14 shows PCMAXevaluation window.

[0312]

[0313] For each TREF, the PCMAX_Hmay be evaluated per Tevaland given by the maximum value over the transmission(s) within the Tevalas follows:

[0314] - PCMAX_H= MAX { PCMAX_ EN-DC _H(p,q) , PCMAX_ EN-DC _H(p,q+1), ... , PCMAX_ EN-DC _H(p,q+n) }

[0315] where PCMAX_ EN-DC _Hare the applicable upper limits for each overlapping scheduling unit pairs (p,q) , (p, q+1) , up to (p, q+n) for each applicable Tevalduration, where q+n is the last NR UL physical-channel overlapping with E-UTRA subframe p.

[0316] While PCMAX_Lmay be computed as follows:

[0317] - PCMAX_L= MIN { PCMAX_ EN-DC _L(p,q) , PCMAX_ EN-DC _L(p,q+1), ... , PCMAX_ EN-DC _L(p,q+n)}

[0318] where PCMAX_EN-DC_Lare the applicable lower limits for each overlapping scheduling unit pairs (p,q) , (p, q+1) , up to (p, q+n) for each applicable Tevalduration, where q+n may be the last NR UL physical-channel overlapping with E-UTRA subframe p,

[0319] With

[0320] - PCMAX_ EN-DC _H(p,q) = MIN {10 log10[pCMAXH _ E-UTRA,c(p) + pCMAXH,f,c,NR(q)], PEMAX, EN-DC,PPowerClass, EN-DC}

[0321] And:

[0322] - a= 10 log10[pCMAX_ E-UTRA,c(p) +pCMAX,f,c,NR(q) ] > PTotalEN-DC

[0323] - b= 10 log10[pCMAX_ E-UTRA,c(p) +pCMAX,f,c,NR(q) / X_scale] > PTotalEN-DC

[0324] If a= FALSE

[0325] - PCMAX_ EN-DC _L(p,q) = MIN {10 log10[pCMAXL _ E-UTRA,c(p) + pCMAXL,f,c,NR(q)], PEMAX, EN-DC,PPowerClass, EN-DC}

[0326] ELSE If (a=TRUE) AND (b=FALSE)

[0327] - PCMAX_ EN-DC _L(p,q) = MIN {10 log10[pCMAXL _ E-UTRA,c(p) + pCMAXL,f,c,NR(q) / X_scale ], PEMAX, EN-DC,PPowerClass, EN-DC}

[0328] ELSE If b= TRUE

[0329] - PCMAX_ EN-DC _L(p,q) = MIN {10 log10[pCMAXL _ E-UTRA,c(p) ], PEMAX, EN-DC,PPowerClass, EN-DC}

[0330] where

[0331] - pCMAXH _ E-UTRA,c(p) is the E-UTRA higher limit of the maximum configured power expressed in linear scale;

[0332] - pCMAXL,f,c,NR(q) is the NR higher limit of the maximum configured power expressed in linear scale;

[0333] - pCMAXL _ E-UTRA,c(p) is the E-UTRA lower limit of the maximum configured power expressed in linear scale;

[0334] - pCMAXL,f,c,NR(q) is the NR lower limit of the maximum configured power expressed in linear scale;

[0335] - PPowerClass, EN-DCis defined in clause 6.2B.1.3-1 for inter-band EN-DC; if the UE indicates higherPowerLimit-r17, PPowerClass,EN-DCis replaced by the sum of the linear powers of PPowerClass,NRand PPowerClass,E-UTRAconverted to dB;

[0336] - X_scale is the linear value of X dB which is configured by RRC and can only take values [0 , 6]

[0337] - pCMAX_ E-UTRA,c(p) is the linear value of PCMAX_ E-UTRA,c(p), the configured max power for E-UTRA. If more than one E-UTRA uplink serving cell is configured as intra-band UL CA in the E-UTRA CG, PCMAX_ E-UTRA,c(p) will be replaced by PCMAX(p) which is the configured maximum power for the entire E-UTRA CG.

[0338] - pCMAX,f,c,NR(q) is the linear value of PCMAX,f,c,NR(q), the configured max power of NR, If more than one NR uplink serving cell is configured as intra-band UL CA in the NR CG, PCMAX_ NR,c(q) will be replaced by PCMAX(q) which is the configured maximum power for the entire NR CG.

[0339] Table 15 shows PCMAXtolerance for Dual Connectivity E-UTRA-NR.

[0340]

[0341] When E-UTRA and NR transmissions overlap and the condition (If (a=TRUE) AND (b=FALSE)) is met, SCG may be transmitted and the following supplementary minimum requirement apply for the measured SCG power, PUMAX,f,c,NR(q), under nominal conditions.

[0342] - 10log(pCMAXL,f,c,NR(q) / X_scale) - TLOW(10log(pCMAXL,f,c,NR(q) / X_scale) )} ≤ PUMAX,f,c,NR(q) ≤ 10log(pCMAXH, f,c,NR(q)) + THIGH(10log(pCMAXH, f,c,NR(q))).

[0343] with the tolerances TLOWand THIGHfor applicable values of PCMAXspecified in Table 15.

[0344] 3. Transmitter power for DC with UL MIMO

[0345] 3-(1) UE maximum output power for DC with UL MIMO

[0346] 3-(1)-1. Inter-band EN-DC with UL MIMO within FR1

[0347] For inter-band EN-DC of E-UTRA and NR in FR1, the following UE Power Classes may define the maximum output power for any transmission bandwidth within the aggregated channel bandwidth. The maximum output power may be measured as the sum of the maximum output power at each UE antenna connector. The period of measurement may be at least one sub frame (1ms). UE maximum output power may be measured over all component carriers from different bands. If each band has separate antenna connectors, maximum output power may be measured as the sum of maximum output power at each UE antenna connector.

[0348] Table 16 shows Maximum output power for inter-band EN-DC with UL MIMO (two bands).

[0349]

[0350] If a UE supports a different power class than the default UE power class for an E-UTRA TDD and NR TDD Inter-band EN-DC band combination and the supported power class may enable higher maximum output power than that of the default power class:

[0351] - if the field of UE capability maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is absent and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 30% (The exact evaluation period is no less than one radio frame); or

[0352] - if the field of UE capability maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is present and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0353] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default power class or lower;

[0354] -- shall apply all requirements for the default power class to the supported power class and set the configured transmitted power as specified sub-clause 3-(2);

[0355] - Else if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 as defined in TS 38.331; or

[0356] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 30% when maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is absent. (The exact evaluation period is no less than one radio frame):

[0357] -- shall apply all requirements for the supported power class and set the configured transmitted power class as specified in sub-clause 3-(2).

[0358] If a UE supports a different power class than the default UE power class for an E-UTRA FDD and NR TDD EN-DC band combination and the supported power class enables higher maximum output power than that of the default power class:

[0359] If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0360] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class, and the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal tomaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0361] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class, and the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame)

[0362] -- shall apply all requirements for the supported power class and set the configured transmitted power class as specified in sub-clause 3-(2).

[0363] - else

[0364] -- shall apply all requirements for the default power class and set the configured transmitted power as specified sub-clause 3-(2);

[0365] else

[0366] - shall apply all requirements for the supported power class and set the configured transmitted power as specified sub-clause 3-(2);

[0367] 3-(2) Configured output power for DC with UL MIMO

[0368] 3-(2)-1. Configured output power level (Inter-band EN-DC with UL MIMO within FR1)

[0369] For inter-band EN-DC with UL MIMO in one of the two frequency bands, the requirements in clause 2-(2)-1) apply except that:

[0370] - If the NR component carrier is configured with UL MIMO, the MPRc and A-MPRc are specified in clause 6.2D.2 and clause 6.2D.3 of [TS 38.101-1 V17.12.0] respectively.

[0371] 4. Transmitter power for DC with Tx Diversity

[0372] 4-(1) UE maximum output power for DC with Tx Diversity

[0373] 4-(1)-1. Inter-band EN-DC with Tx Diversity within FR1

[0374] For inter-band EN-DC of E-UTRA and NR in FR1, the following UE Power Classes define the maximum output power for any transmission bandwidth within the aggregated channel bandwidth. The maximum output power is measured as the sum of the maximum output power at each UE antenna connector. The period of measurement shall be at least one sub frame (1ms). UE maximum output power shall be measured over all component carriers from different bands. If each band has separate antenna connectors, maximum output power is measured as the sum of maximum output power at each UE antenna connector.

[0375] Table 17 shows Maximum output power for inter-band EN-DC with Tx Diversity (two bands).

[0376]

[0377] If a UE supports a different power class than the default UE power class for an E-UTRA TDD and NR TDD Inter-band EN-DC band combination and the supported power class enables higher maximum output power than that of the default power class:

[0378] - if the field of UE capability maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is absent and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 30% (The exact evaluation period is no less than one radio frame); or

[0379] - if the field of UE capability maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is present and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0380] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default power class or lower;

[0381] -- shall apply all requirements for the default power class to the supported power class and set the configured transmitted power as specified sub-clause 4-(2);

[0382] - Else if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 as defined in TS 38.331; or

[0383] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 30% when maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 is absent. (The exact evaluation period is no less than one radio frame):

[0384] -- shall apply all requirements for the supported power class and set the configured transmitted power class as specified in sub-clause 4-(2).

[0385] If a UE supports a different power class than the default UE power class for an E-UTRA FDD and NR TDD EN-DC band combination and the supported power class enables higher maximum output power than that of the default power class:

[0386] If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0387] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class, and the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal tomaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0388] - if the IE p-maxUE-FR1 as defined in TS 38.331 is not provided or set to the higher value than the maximum output power of the default power class, and the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame)

[0389] -- shall apply all requirements for the supported power class and set the configured transmitted power class as specified in sub-clause 4-(2).

[0390] - else

[0391] -- shall apply all requirements for the default power class and set the configured transmitted power as specified sub-clause 4-(2);

[0392] else

[0393] -- shall apply all requirements for the supported power class and set the configured transmitted power as specified sub-clause 4-(2);

[0394] Table 18 shows Maximum output power for inter-band EN-DC with Tx Diversity (two bands).

[0395]

[0396] 4-(2) Configured output power for DC with Tx Diversity

[0397] 4-(2)-1. Configured output power level (Inter-band EN-DC with Tx Diversity within FR1)

[0398] For inter-band EN-DC with Tx Diversity in one of the two frequency bands, the requirements in clause 2-(2)-1) apply except that:

[0399] - If the NR component carrier is configured with Tx Diversity, the MPRc and A-MPRc are specified in clause 6.2G.2 and clause 6.2G.3 of [TS 38.101-1 V17.12.0] respectively.

[0400] 5. Dual connectivity (EN-DC)

[0401] If a UE is configured with a MCG using E-UTRA radio access and with a SCG using NR radio access, the UE is configured a maximum power PLTEfor transmissions on the MCG by p-MaxEUTRA and a maximum power PNRfor transmissions in FR1 on the SCG by p-NR-FR1.

[0402] The UE determines a transmission power for the MCG as described in [13, TS 36.213] using PLTEas the maximum transmission power. The UE determines transmission power for the SCG in FR1 as described in clauses 7.1 through 7.5 using PNRas the maximum transmission power. The UE determines transmission power for the SCG in FR2 as described in clauses 7.1 through 7.5.

[0403] A UE does not expect to be configured for operation with shortened TTI and / or processing time [13, TS 36.213] on a cell that is included in an EN-DC configuration.

[0404] If a UE is configured with (linear value of PLTE)+ (linear value of PNR) > (linear value of PTotalEN-DC), where linear value of PLTEis the linear value of PLTE, linear value of PNRis the linear value of PNR, and linear value of PTotalEN-DCis the linear value of a configured maximum transmission power for EN-DC operation as defined in [8-3, TS 38.101-3 V17.12.0] for FR1, the UE determines a transmission power for the SCG as follows.

[0405] - If the UE is configured with reference TDD configuration for E-UTRA (by tdm-PatternConfig or by tdm-PatternConfig2 in [13, TS 36.213])

[0406] -- If the UE does not indicate a capability for dynamic power sharing between E-UTRA and NR for EN-DC, the UE does not transmit in a slot on the SCG in FR1 when a corresponding subframe on the MCG is an UL subframe in the reference TDD configuration.

[0407] -- If the UE indicates a capability for dynamic power sharing between E-UTRA and NR for EN-DC, and does not indicate a capability tdm-restrictionDualTX-FDD-endc-r16 in [18, TS 38.306], and is configured with tdm-PatternConfig2, the UE does not transmit on the SCG in FR1 when the UE has overlapped transmission on a subframe on the MCG.

[0408] - If the UE indicates a capability for dynamic power sharing between E-UTRA and NR for EN-DC and

[0409] -- if UE transmission(s) in subframe i1of the MCG overlap in time with UE transmission(s) in slot i2of the SCG in FR1, and

[0410] -- if (linear value of PMCG(i1)) + (linear value of PSCG(i2)) > (linear value of PTotalEn-DC) in any portion of slot i2of the SCG,

[0411] the UE reduces transmission power in any portion of slot i2of the SCG so that (linear value of PMCG(i1)) + (linear value of PSCG(i2)) ≤ (linear value of PTotalEn-DC) in any portion of slot i2, where linear value of PMCG(i1) and linear value of PSCG(i2) are the linear values of the total UE transmission powers in subframe i1of the MCG and in slot i2of the SCG in FR1, respectively. The UE is not required to transmit in any portion of slot i2of the SCG if linear value of PSCG(i2)　would need to be reduced by more than the value provided by XSCALEin order for '(linear value of PMCG(i1)) + (linear value of PSCG(i2)) ≤ (linear value of PTotalEn-DC)'　in any portion of slot i2of the SCG. The UE is required to transmit in slot i2of the SCG if linear value of PSCG(i2)　would not need to be reduced by more than the value provided by XSCALEin order for '(linear value of PMCG(i1)) + (linear value of PSCG(i2)) ≤ (linear value of PTotalEn-DC)'　in all portions of slot i2.

[0412] - If the UE does not indicate a capability for dynamic power sharing between E-UTRA and NR for EN-DC, the UE expects to be configured with reference TDD configuration for E-UTRA by tdm-PatternConfig in [13, TS 36.213].

[0413] Table 19 shows MRDC-Parameters.

[0414]

[0415]

[0416]

[0417] 6. Frame structure type 1

[0418] Frame structure type 1 is applicable to both full duplex and half duplex FDD only. Each radio frame is Tf=307200 * Ts=10 ms long and consists of 10 subframes of length 30720 * Ts=10ms, numbered from 0 to 9. Subframe i in frame nfhas an absolute subframe number nsfabs= 10nf+ i where nfis the system frame number.

[0419] For subframes using Δf = 7.5 kHz or Δf = 15 kHz, subframe i is defined as two slots, 2i and 2i+1, of length Tslot= 15360*Ts= 0.5 ms each.

[0420] For subframes using Δf = 1.25 kHz, subframe i is defined as one slot, 2i, of length Tslot=30720 * Ts=1 ms.

[0421] For subframes using Δf = 15 kHz, the subframe can further be divided into six subslots according to Table 20. Downlink subslot pattern 1 is applied if the number of symbols used for PDCCH is equal to 1 or 3 and downlink subslot pattern 2 is applied if the number of symbols used for PDCCH is equal to 2. For system bandwidths NRBDL≤ 10, subslot transmission is not supported in case 4 symbols used for PDCCH.

[0422] For FDD, 10 subframes, 20 slots, or up to 60 subslots are available for downlink transmission and 10 subframes, 20 slots, or up to 60 subslots are available for uplink transmissions in each 10 ms interval. Uplink and downlink transmissions are separated in the frequency domain. In half-duplex FDD operation, the UE cannot transmit and receive at the same time while there are no such restrictions in full-duplex FDD.

[0423] FIG.6 show an example of Frame structure type 1 according to a disclosure of the present specification.

[0424] Table 20 shows SC-FDMA / OFDM symbols in different subslots of subframe i.

[0425]

[0426] 7. Inter-band EN-DC including PC1.5: percentage of UL transmission

[0427] 7-(1) UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+23dBm(NR TDD))

[0428] Below, the Y and Z values received or determined by the terminal from the network (e.g., a base station).

[0429] For PC2(26dBm) UE in EN-DC (with E-UTRA FDD 23dBm and NR TDD 23dBm), if E-UTRA uplink transmission is expected with maximum Y% of subframes, NR uplink transmission may be expected to maximum Z% symbols during any evaluation period of time which is larger than or equal to at least 10ms. Table 21 and / or table 22 shows it. Here, two thresholds, DC1 and DC2 are considered.

[0430] The following equation may be applied between the LTE UL duty cycle, NR UL duty cycle and the overall duty threshold.

[0431] - DutyLTE x( PLTE / P26) + DutyNR x(PNR / P26) ≤ Duty threshold (hereinafter, equation (1))

[0432] - 0.5xDutyLTE + 0.5xDutyNR ≤ Duty threshold (hereinafter, equation (2))

[0433] DutyLTE may be from 0 to 100%.

[0434] DutyNR may be from 0 to 100%.

[0435] PLTE, PNR, P26may represent the maximum linear power (mW) of LTE, NR, and EN-DC power class 2 respectively; DutyLTE, DutyNRmay represent the maximum uplink percentage of LTE, NR respectively. Duty threshold may represent the maximum UL duty cycle that can maintain the PC2 power class for FDD+TDD EN-DC.

[0436] The LTE reference configuration can be DutyLTE70%. The default value of NR UL duty capability can be 30% e.g. "DutyLTE=70% and PLTE=23dBm", corresponding to default DutyNR=30%, PNR=23dBm.

[0437] For better flexibility, two LTE configurations may be supported with LTE reference configuration of DutyLTE=70% and 40%.

[0438] Table 21 or table 22 may be Percentage of maximum E-UTRA / NR uplink transmission in PC2 EN-DC (23dBm(E-UTRA TDD)+23dBm(NR TDD)).

[0439]

[0440]

[0441] In EN-DC (23dBm(E-UTRA TDD)+23dBm(NR TDD)), Y may be percentage of maximum E-UTRA(23dBm) uplink transmission during evaluation period.

[0442] In EN-DC (23dBm(E-UTRA TDD)+23dBm(NR TDD)), Z may be percentage of maximum NR(23dBm) uplink transmission during evaluation period.

[0443] If i) Y is greater than or equal to 70, followings may be applied:

[0444] - if Z is less than or equal to DC1, the UE may be applied with power for PC2 (power class 2) (e.g., Y=70, Z=20, DC1=30).

[0445] - if Z is greater than DC1, the UE may be applied with power for PC3 (e.g., Y=70, Z=40, DC1=30)

[0446] According to Table 21, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0447] - if Y<=40 and Z <= DC2, the UE may be applied with power for PC2.

[0448] - if Y<=40 and Z > DC2, the UE may be applied with power for PC3.

[0449] - if 40<Y<=70 and Z <= DC1, the UE may be applied with power for PC2.

[0450] - if 40<Y<=70 and Z > DC1, the UE may be applied with power for PC3.

[0451] - if Y>=70, the UE may be applied with power for PC3.

[0452] According to Table 21, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC2.

[0453] According to Table 22, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0454] - if Y<=40 and Z <= DC2, the UE may be applied with power for PC2.

[0455] - if Y<=40 and Z > DC2, the UE may be applied with power for PC3.

[0456] - if 40<Y and Z <= DC1, the UE may be applied with power for PC2.

[0457] - if 40<Y and Z > DC1, the UE may be applied with power for PC3.

[0458] According to Table 22, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC2.

[0459] The above-mentioned contents (e.g., table 21 or table 22) about power class this clause (UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+23dBm(NR TDD))) may also be applied to UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+23dBm(NR FDD)).

[0460] 7-(2) UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+26dBm(NR TDD))

[0461] For PC2(26dBm) UE in EN-DC(with E-UTRA FDD 23dBm and NR TDD 26dBm), if E-UTRA uplink transmission is expected with maximum Y% of subframes, NR uplink transmission may be expected to maximum Z% symbols during any evaluation period of time which is larger than or equal to at least 10ms. Table 23 or table 24 shows it. Here, two thresholds, DC1 and DC2 may be considered.

[0462] The following equation may be applied between the LTE UL duty cycle, NR UL duty cycle and the overall duty threshold.

[0463] - DutyLTE x( PLTE / P26) + DutyNR x(PNR / P26) ≤Duty threshold (equation (1))

[0464] - 0.5xDutyLTE + DutyNR ≤Duty threshold (hereinafter, equation (3))

[0465] DutyLTE may be from 0 to 100%.

[0466] DutyNR may be from 0 to 50%.

[0467] PLTE, PNR, P26may represent the maximum linear power (mW) of LTE, NR, and EN-DC power class 2 respectively; DutyLTE, DutyNRmay represent the maximum uplink percentage of LTE, NR respectively. Duty threshold may represent the maximum UL duty cycle that can maintain the PC2 power class for FDD+TDD EN-DC.

[0468] The LTE reference configuration can be DutyLTE40%. The default value of NR UL duty capability can be 30% i.e. "DutyLTE=40% and PLTE=23dBm", corresponding to default DutyNR=30%, PNR=26dBm.

[0469] For better flexibility, two LTE configurations may be supported with LTE reference configuration of DutyLTE=40% and 70%.

[0470] Table 23 or table 24 may be Percentage of maximum E-UTRA / NR uplink transmission in PC2 EN-DC (23dBm(E-UTRA FDD)+26dBm(NR TDD)).

[0471]

[0472]

[0473] In EN-DC (23dBm(E-UTRA FDD)+26dBm(NR TDD)), Y may be percentage of maximum E-UTRA(23dBm) uplink transmission during evaluation period.

[0474] In EN-DC (23dBm(E-UTRA FDD)+26dBm(NR TDD)), Z may be percentage of maximum NR(26dBm) uplink transmission during evaluation period.

[0475] If i) Y is greater than or equal to 70, followings may be applied:

[0476] - if Z is less than or equal to DC1, the UE may be applied with power for PC2 (e.g., Y=70, Z=10, DC1=15).

[0477] - if Z is greater than DC1, the UE may be applied with power for PC3 (e.g., Y=70, Z=20, DC1=15)

[0478] According to Table 23, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0479] - if Y<=40 and Z <= DC2, the UE may be applied with power for PC2.

[0480] - if Y<=40 and Z > DC2, the UE may be applied with power for PC3.

[0481] - if 40<Y<=70 and Z <= DC1, the UE may be applied with power for PC2.

[0482] - if 40<Y<=70 and Z > DC1, the UE may be applied with power for PC3.

[0483] - if Y>=70, the UE may be applied with power for PC3.

[0484] According to Table 23, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC2.

[0485] According to Table 24, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0486] - if Y<=40 and Z <= DC2, the UE may be applied with power for PC2.

[0487] - if Y<=40 and Z > DC2, the UE may be applied with power for PC3.

[0488] - if 40<Y and Z <= DC1, the UE may be applied with power for PC2.

[0489] - if 40<Y and Z > DC1, the UE may be applied with power for PC3.

[0490] According to Table 24, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC2.

[0491] The above-mentioned contents (e.g., table 23 or table 24) about power class this clause (UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+26dBm(NR TDD))) may also be applied to UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+26dBm(NR FDD)).

[0492] 7-(3) UE supporting a power class 2 for an EN-DC (26dBm(E-UTRA FDD)+23dBm(NR TDD))

[0493] For PC2(26dBm) UE in EN-DC(with E-UTRA FDD 26dBm and NR TDD 23dBm), if E-UTRA uplink transmission is expected with maximum Y% of subframes, NR uplink transmission may be expected to maximum Z% symbols during any evaluation period of time which is larger than or equal to at least 10ms. Table 25 or table 26 shows it. Here, two threshodls, DC1 and DC2 may be considered.

[0494] The following equation may be applied between the LTE UL duty cycle, NR UL duty cycle and the overall duty threshold.

[0495] - DutyLTE x( PLTE / P26) + DutyNR x(PNR / P26) ≤Duty threshold (equation (1))

[0496] - DutyLTE + 0.5xDutyNR ≤Duty threshold (hereinafter, equation (4))

[0497] DutyLTE may be from 0 to 50%.

[0498] DutyNR may be from 0 to 100%.

[0499] PLTE, PNR, P26may represent the maximum linear power (mW) of LTE, NR, and EN-DC power class 2 respectively; DutyLTE, DutyNRmay represent the maximum uplink percentage of LTE, NR respectively. Duty threshold may represent the maximum UL duty cycle that can maintain the PC2 power class for FDD+TDD EN-DC.

[0500] The LTE reference configuration can be DutyLTE35%. The default value of NR UL duty capability can be 30% i.e. "DutyLTE=35% and PLTE=26dBm", corresponding to default DutyNR=30%, PNR=23dBm.

[0501] For better flexibility, two LTE configurations may be supported with LTE reference configuration of DutyLTE=20% and 35%.

[0502] Table 25 or table 26 may be Percentage of maximum E-UTRA / NR uplink transmission in PC1.5 EN-DC (26dBm(E-UTRA FDD)+23dBm(NR TDD)).

[0503]

[0504]

[0505] In EN-DC (26dBm(E-UTRA FDD)+23dBm(NR TDD)), Y may be percentage of maximum E-UTRA(26dBm) uplink transmission during evaluation period.

[0506] In EN-DC (26dBm(E-UTRA FDD)+23dBm(NR TDD)), Z may be percentage of maximum NR(23dBm) uplink transmission during evaluation period.

[0507] If i) Y is greater than or equal to 35, followings may be applied:

[0508] - if Z is less than or equal to DC1, the UE may be applied with power for PC2 (e.g., Y=35, Z=20, DC1=30).

[0509] - if Z is greater than DC1, the UE may be applied with power for PC3 (e.g., Y=35, Z=40, DC1=30)

[0510] According to Table 25, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0511] - if Y<=20 and Z <= DC2, the UE may be applied with power for PC2.

[0512] - if Y<=20 and Z > DC2, the UE may be applied with power for PC3.

[0513] - if 20<Y<=35 and Z <= DC1, the UE may be applied with power for PC2.

[0514] - if 20<Y<=35 and Z > DC1, the UE may be applied with power for PC3.

[0515] - if Y>=35, the UE may be applied with power for PC3.

[0516] According to Table 25, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC2.

[0517] According to Table 26, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0518] - if Y<=20 and Z <= DC2, the UE may be applied with power for PC2.

[0519] - if Y<=20 and Z > DC2, the UE may be applied with power for PC3.

[0520] - if 20<Y and Z <= DC1, the UE may be applied with power for PC2.

[0521] - if 20<Y and Z > DC1, the UE may be applied with power for PC3.

[0522] According to Table 26, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC2.

[0523] The above-mentioned contents (e.g., table 25 or table 26) about power class this clause (UE supporting a power class 2 for an EN-DC (26dBm(E-UTRA FDD)+23dBm(NR TDD))) may also be applied to UE supporting a power class 2 for an EN-DC (26dBm(E-UTRA FDD)+23dBm(NR FDD)).

[0524] 7-(4) UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+26dBm(NR TDD))

[0525] For PC1.5(29dBm) UE in EN-DC(with E-UTRA FDD 26dBm and NR TDD 26dBm), if E-UTRA uplink transmission is expected with maximum Y% of subframes, NR uplink transmission may be expected to maximum Z% symbols during any evaluation period of time which is larger than or equal to at least 10ms. Table 27 or table 28 shows it. Here, two thresholds, DC1 and DC2 may be considered.

[0526] The following equation may be applied between the LTE UL duty cycle, NR UL duty cycle and the overall duty threshold.

[0527] - DutyLTE x( PLTE / P29) + DutyNR x(PNR / P29) ≤Duty threshold (equation (1))

[0528] - DutyLTE + DutyNR ≤Duty threshold (hereinafter, equation (5))

[0529] DutyLTE may be from 0 to 50%.

[0530] DutyNR may be from 0 to 50%.

[0531] PLTE, PNR, P29may represent the maximum linear power (mW) of LTE, NR, and EN-DC power class 1.5 respectively; DutyLTE, DutyNRmay represent the maximum uplink percentage of LTE, NR respectively. Duty threshold may represent the maximum UL duty cycle that can maintain the PC1.5 power class for FDD+TDD EN-DC.

[0532] The LTE reference configuration can be DutyLTE35%. The default value of NR UL duty capability can be 15% i.e. "DutyLTE=35% and PLTE=26dBm", corresponding to default DutyNR=15%, PNR=26dBm.

[0533] For better flexibility, two LTE configurations may be supported with LTE reference configuration of DutyLTE=20% and 35%.

[0534] Table 27, table 28 or table 29 may be Percentage of maximum E-UTRA / NR uplink transmission in PC1.5 EN-DC (26dBm(E-UTRA FDD)+26dBm(NR TDD)).

[0535]

[0536]

[0537]

[0538]

[0539]

[0540]

[0541] In EN-DC (26dBm(E-UTRA FDD)+26dBm(NR TDD)), Y may be percentage of maximum E-UTRA(26dBm) uplink transmission during evaluation period.

[0542] In EN-DC (26dBm(E-UTRA FDD)+26dBm(NR TDD)), Z may be percentage of maximum NR(26dBm) uplink transmission during evaluation period.

[0543] If i) Y is greater than or equal to 35 and ii) DC1 is less than or equal to 25, followings may be applied:

[0544] - if Z is less than or equal to DC1, the UE may be applied with power for PC2 (e.g., Y=40, Z=10, DC1=10).

[0545] - if Z is greater than DC1, the UE may be applied with power for PC3 (e.g., Y=40, Z=15, DC1=10)

[0546] According to Table 27, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0547] - if i) DC2 > 25 or DC1 > 25, ii) Y<=20 and iii) Z <= DC2-25, the UE may be applied with power for PC1.5..

[0548] - if i) DC2 > 25 or DC1 > 25, ii) Y<=20 and iii) DC2-25 < Z <= DC2, the UE may be applied with power for PC2.

[0549] - if i) DC2 > 25 or DC1 > 25, ii) Y<=20 and iii) Z > DC2, the UE may be applied with power for PC3.

[0550] - if i) DC2 > 25 or DC1 > 25, ii) 20<Y<35 and iii) Z <= DC1-25, the UE may be applied with power for PC1.5.

[0551] - if i) DC2 > 25 or DC1 > 25, ii) 20<Y<35 and iii) DC1-25 < Z <= DC1, the UE may be applied with power for PC2.

[0552] - if i) DC2 > 25 or DC1 > 25, ii) 20<Y<35 and iii) Z > DC1, the UE may be applied with power for PC3.

[0553] - if i) DC2 > 25 or DC1 > 25, ii) Y>=35, the UE may be applied with power for PC3.

[0554] - if DC2 <= 25 or DC1 <=25, ii) 20<Y<35 and iii) Z <= DC1, the UE may be applied with power for PC2.

[0555] - if DC2 <= 25 or DC1 <=25, ii) 20<Y<35 and iii) Z > DC1, the UE may be applied with power for PC3.

[0556] - if DC2 <= 25 or DC1 <=25, Y>=35, the UE may be applied with power for PC3.

[0557] According to Table 27, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC1.5.

[0558] According to Table 28, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0559] - if i) DC2 > 25 or DC1 > 25, ii) Y<=20 and iii) Z <= DC2-25, the UE may be applied with power for PC1.5.

[0560] - if i) DC2 > 25 or DC1 > 25, ii) Y<=20 and iii) DC2-25 < Z <= DC2, the UE may be applied with power for PC2.

[0561] - if i) DC2 > 25 or DC1 > 25, ii) Y<=20 and iii) Z > DC2, the UE may be applied with power for PC3.

[0562] - if i) DC2 > 25 or DC1 > 25, ii) 20<Y<35 and iii) Z <= DC1-25, the UE may be applied with power for PC1.5.

[0563] - if i) DC2 > 25 or DC1 > 25, ii) 20<Y<35 and iii) DC1-25 < Z <= DC1, the UE may be applied with power for PC2.

[0564] - if i) DC2 > 25 or DC1 > 25, ii) 20<Y<35 and iii) Z > DC1, the UE may be applied with power for PC3.

[0565] - if i) DC2 > 25 or DC1 > 25, ii) 35<=Y, the UE may be applied with power for PC3.

[0566] - if i) DC2 <= 25 or DC1 <=25, ii) 20<Y<35 and iii) Z <= DC1, the UE may be applied with power for PC2.

[0567] - if i) DC2 <= 25 or DC1 <=25, ii) 20<Y and iii) Z > DC1, the UE may be applied with power for PC3

[0568] According to Table 28, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC1.5.

[0569] According to Table 29, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0570] - if i) DC2 > 25 or DC1 > 25, ii) Y<=25 and iii) Z <= DC2-25, the UE may be applied with power for PC1.5.

[0571] - if i) DC2 > 25 or DC1 > 25, ii) Y<=25 and iii) DC2-25 < Z <= DC2, the UE may be applied with power for PC2.

[0572] - if i) DC2 > 25 or DC1 > 25, ii) Y<=25 and iii) Z > DC2, the UE may be applied with power for PC3.

[0573] - if i) DC2 > 25 or DC1 > 25 and ii) 25<Y<35, None

[0574] - if i) DC2 > 25 or DC1 > 25 and Y>=35, the UE may be applied with power for PC3.

[0575] - if i) DC2 <= 25 or DC1 <=25, ii) Y<=25 and iii) Z <= DC2, the UE may be applied with power for PC2.

[0576] - if i) DC2 <= 25 or DC1 <=25, ii) Y<=25 and iii) Z > DC2, the UE may be applied with power for PC3.

[0577] - if i) DC2 <= 25 or DC1 <=25, ii) 20<Y<35 and iii) Z <= DC1, the UE may be applied with power for PC2.

[0578] - if i) DC2 <= 25 or DC1 <=25, ii) 20<Y<35 and iii) Z > DC1, the UE may be applied with power for PC3.

[0579] - if i) DC2 <= 25 or DC1 <=25 and ii) Y>=35, the UE may be applied with power for PC3.

[0580] According to Table 29, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC1.5.

[0581] The above-mentioned contents (e.g., table 27, table 28 or table 29) about power class this clause (UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+26dBm(NR TDD))) may also be applied to UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+26dBm(NR FDD)).

[0582] 7-(5) UE supporting a power class 1.5 for an EN-DC (23dBm(E-UTRA FDD)+29dBm(NR TDD))

[0583] For PC1.5(29dBm) UE in EN-DC(with E-UTRA FDD 23dBm and NR TDD 29dBm), if E-UTRA uplink transmission is expected with maximum Y% of subframes, NR uplink transmission may be expected to maximum Z% symbols during any evaluation period of time which is larger than or equal to at least 10ms. Table 3.0-6 shows it. Here, two threshols, DC1 and DC2 may be considered.

[0584] The following equation may be applied between the LTE UL duty cycle, NR UL duty cycle and the overall duty threshold.

[0585] - DutyLTE x( PLTE / P29) + DutyNR x(PNR / P29)≤ Duty threshold (equation (1))

[0586] - 0.25xDutyLTE + DutyNR ≤ Duty threshold (hereinafter, equation (6))

[0587] DutyLTE may be from 0 to 100%.

[0588] DutyNR may be from 0 to 25%.

[0589] PLTE, PNR, P29may represent the maximum linear power (mW) of LTE, NR, and EN-DC power class 1.5 respectively; DutyLTE, DutyNRmay represent the maximum uplink percentage of LTE, NR respectively. Duty threshold may represent the maximum UL duty cycle that can maintain the PC1.5 power class for FDD+TDD EN-DC.

[0590] The LTE reference configuration can be DutyLTE70%. The default value of NR UL duty capability can be 7.5% i.e. "DutyLTE=70% and PLTE=23dBm", corresponding to default DutyNR=7.5%, PNR=29dBm.

[0591] For better flexibility, two LTE configurations may be supported with LTE reference configuration of DutyLTE=70% and 40%.

[0592] Table 30 or table 31 may be Percentage of maximum E-UTRA / NR uplink transmission in PC1.5 EN-DC (23dBm(E-UTRA FDD)+29dBm(NR TDD)).

[0593]

[0594]

[0595]

[0596]

[0597] In EN-DC (23dBm(E-UTRA FDD)+29dBm(NR TDD)), Y may be percentage of maximum E-UTRA(23dBm) uplink transmission during evaluation period.

[0598] In EN-DC (23dBm(E-UTRA FDD)+29dBm(NR TDD)), Z may be percentage of maximum NR(29dBm) uplink transmission during evaluation period.

[0599] If i) DC1 is greater than 12.5 and ii) Y is greater than or equal to 70, followings may be applied:

[0600] - if Z is less than or equal to (DC1-12.5), the UE may be applied with power for PC1.5 (e.g., Y=45, Z=1, DC1=13.75).

[0601] - if i) Z is greater than (DC1-12.5) and ii) Z is less than or equal to DC1, the UE may be applied with power for PC2 (e.g., Y=45, Z=10, DC1=13.75).

[0602] - if Z is greater than DC1, the UE may be applied with power for PC3 (e.g., Y=45, Z=20, DC1=13.75)

[0603] If i) DC1 is greater than 12.5 and ii) Y is greater than or equal to 70, the UE may be applied with power class for PC3

[0604] If i) DC1≤12.5 and ii) Y is greater than or equal to 70, followings may be applied:

[0605] - if Z is less than or equal to DC1, the UE may be applied with power for PC2 (e.g., Y=70, Z=5, DC1=7.5).

[0606] - if Z is greater than DC1, the UE may be applied with power for PC3 (e.g., Y=70, Z=10, DC1=7.5)

[0607] According to Table 30, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0608] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=40 and iii) Z <= DC2-12.5, the UE may be applied with power for PC1.5.

[0609] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=40 and iii) DC2-12.5 < Z <= DC2, the UE may be applied with power for PC2.

[0610] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=40 and iii) Z > DC2, the UE may be applied with power for PC3.

[0611] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 40<Y<70 and iii) Z <= DC1-12.5, the UE may be applied with power for PC1.5.

[0612] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 40<Y<70 and iii) DC1-12.5 < Z <= DC1, the UE may be applied with power for PC2.

[0613] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 40<Y<70 and iii) Z > DC1, the UE may be applied with power for PC3.

[0614] - if i) DC2 > 12.5 or DC1 > 12.5 and ii) Y>=70, the UE may be applied with power for PC3.

[0615] - if i) DC2 <= 12.5 or DC1 <=12.5, ii) 40<Y<70 and iii) Z <= DC1, the UE may be applied with power for PC2.

[0616] - if i) DC2 <= 12.5 or DC1 <=12.5, ii) 40<Y<70 and iii) Z > DC1, the UE may be applied with power for PC3.

[0617] - if i) DC2 <= 12.5 or DC1 <=12.5 and ii) Y>=35), the UE may be applied with power for PC3.

[0618] According to Table 30, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC1.5.

[0619] According to Table 31, if two thresholds(DC1 and DC2) is indicated, followings may be applied:

[0620] - i) if DC2 > 12.5 or DC1 > 12.5, ii) Y<=40 and iii) Z <= DC2-12.5, the UE may be applied with power for PC1.5.

[0621] - i) if DC2 > 12.5 or DC1 > 12.5, ii) Y<=40 and iii) DC2-12.5 < Z <= DC2, the UE may be applied with power for PC2.

[0622] - i) if DC2 > 12.5 or DC1 > 12.5, ii) Y<=40 and iii) Z > DC2, the UE may be applied with power for PC3.

[0623] - i) if DC2 > 12.5 or DC1 > 12.5, ii) 40<Y<70 and iii) Z <= DC1-12.5, the UE may be applied with power for PC1.5.

[0624] - i) if DC2 > 12.5 or DC1 > 12.5, ii) 40<Y<70 and iii) DC1-12.5 < Z <= DC1, the UE may be applied with power for PC2.

[0625] - i) if DC2 > 12.5 or DC1 > 12.5, ii) 40<Y<70 and iii) Z > DC1, the UE may be applied with power for PC3.

[0626] - i) if DC2 > 12.5 or DC1 > 12.5, ii) 70<=Y, the UE may be applied with power for PC3.

[0627] - i) if DC2 <= 12.5 or DC1 <=12.5, ii) 40<Y and iii) Z <= DC1, the UE may be applied with power for PC2.

[0628] - i) if DC2 <= 12.5 or DC1 <=12.5, ii) 40<Y and iii) Z > DC1, the UE may be applied with power for PC3.

[0629] According to Table 31, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC1.5.

[0630] The above-mentioned contents (e.g., table 30 or table 31) about power class this clause (UE supporting a power class 1.5 for an EN-DC (23dBm(E-UTRA FDD)+29dBm(NR TDD))) may also be applied to UE supporting a power class 1.5 for an EN-DC (23dBm(E-UTRA FDD)+29dBm(NR FDD)).

[0631] 7-(6) UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+29dBm(NR TDD))

[0632] For PC1.5(29dBm) UE in EN-DC(with E-UTRA FDD 26dBm and NR TDD 29dBm), if E-UTRA uplink transmission is expected with maximum Y% of subframes, NR uplink transmission may be expected to maximum Z% symbols during any evaluation period of time which is larger than or equal to at least 10ms. Table 3.0-7 shows it. Here, two threshols, DC1 and DC2 may be considered.

[0633] The following equation may be applied between the LTE UL duty cycle, NR UL duty cycle and the overall duty threshold.

[0634] - DutyLTE x( PLTE / P29) + DutyNR x(PNR / P29) ≤Duty threshold (equation (1))

[0635] - 0.5xDutyLTE + DutyNR ≤ Duty threshold (hereinafter, equation (7))

[0636] DutyLTE may be from 0 to 50%.

[0637] DutyNR may be from 0 to 25%.

[0638] PLTE, PNR, P29may represent the maximum linear power (mW) of LTE, NR, and EN-DC power class 1.5 respectively; DutyLTE, DutyNRmay represent the maximum uplink percentage of LTE, NR respectively. Duty threshold may represent the maximum UL duty cycle that can maintain the PC1.5 power class for FDD+TDD EN-DC.

[0639] The LTE reference configuration can be DutyLTE35%. The default value of NR UL duty capability can be 7.5% i.e. "DutyLTE=35% and PLTE=26dBm", corresponding to default DutyNR=7.5%, PNR=29dBm.

[0640] For better flexibility, two LTE configurations may be supported with LTE reference configuration of DutyLTE=35% and 20%.

[0641] Table 32 or table 33 may be Percentage of maximum E-UTRA / NR uplink transmission in PC1.5 EN-DC (26dBm(E-UTRA FDD)+29dBm(NR TDD)).

[0642]

[0643]

[0644]

[0645]

[0646] In EN-DC (26dBm(E-UTRA FDD)+29dBm(NR TDD)), Y may be percentage of maximum E-UTRA(26dBm) uplink transmission during evaluation period.

[0647] In EN-DC (26dBm(E-UTRA FDD)+29dBm(NR TDD)), Z may be percentage of maximum NR(29dBm) uplink transmission during evaluation period.

[0648] If i) DC1 is greater than 12.5 and ii) Y is greater than or equal to 20 and less than 35, followings may be applied:

[0649] - if Z is less than or equal to (DC1-12.5), the UE may be applied with power for PC1.5 (e.g., Y=22, Z=1, DC1=14).

[0650] - if i) Z is greater than (DC1-12.5) and ii) Z is less than or equal to DC1, the UE may be applied with power for PC2 (e.g., Y=22, Z=10, DC1=14).

[0651] - if Z is greater than DC1, the UE may be applied with power for PC3 (e.g., Y=22, Z=20, DC1=14)

[0652] If i) DC1 is greater than 12.5 and ii) Y is greater than or equal to 35, the UE may be applied with power for PC3.

[0653] If i) DC1≤12.5 and ii) Y is greater than or equal to 35, followings may be applied:

[0654] - if Z is less than or equal to DC1, the UE may be applied with power for PC2 (e.g., Y=35, Z=7, DC1=7.5).

[0655] - if Z is greater than DC1, the UE may be applied with power for PC3 (e.g., Y=35, Z=10, DC1=7.5)

[0656] According to Table 32, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0657] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=20 and iii) Z <= DC2-12.5, the UE may be applied with power for PC1.5.

[0658] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=20 and iii) DC2-12.5 < Z <= DC2, the UE may be applied with power for PC2.

[0659] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=20 and iii) Z > DC2, the UE may be applied with power for PC3.

[0660] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 20<Y<35 and iii) Z <= DC1-12.5, the UE may be applied with power for PC1.5.

[0661] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 20<Y<35 and iii) DC1-12.5 < Z <= DC1, the UE may be applied with power for PC2.

[0662] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 20<Y<35 and iii) Z > DC1, the UE may be applied with power for PC3.

[0663] - if i) DC2 > 12.5 or DC1 > 12.5 and ii) else (Y>=35), the UE may be applied with power for PC3.

[0664] - if i) DC2 <= 12.5 or DC1 <=12.5, ii) 20<Y<35 and iii) Z <= DC1, the UE may be applied with power for PC2.

[0665] - if i) DC2 <= 12.5 or DC1 <=12.5, ii) 20<Y<35 and iii) Z > DC1, the UE may be applied with power for PC3.

[0666] - if i) DC2 <= 12.5 or DC1 <=12.5 and ii) Y>=35, the UE may be applied with power for PC3.

[0667] According to Table 32, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC1.5.

[0668] According to Table 33, if two thresholds(DC1 and DC2) are indicated, followings may be applied:

[0669] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=20 and iii) Z <= DC2-12.5, the UE may be applied with power for PC1.5.

[0670] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=20 and iii) DC2-12.5 < Z <= DC2, the UE may be applied with power for PC2.

[0671] - if i) DC2 > 12.5 or DC1 > 12.5, ii) Y<=20 and iii) Z > DC2, the UE may be applied with power for PC3.

[0672] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 20<Y<35 and iii) Z <= DC1-12.5, the UE may be applied with power for PC1.5.

[0673] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 20<Y<35 and iii) DC1-12.5 < Z <= DC1, the UE may be applied with power for PC2.

[0674] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 20<Y<35 and iii) Z > DC1, the UE may be applied with power for PC3.

[0675] - if i) DC2 > 12.5 or DC1 > 12.5, ii) 35<=Y, the UE may be applied with power for PC3.

[0676] - if i) DC2 <= 12.5 or DC1 <=12.5, ii) 20<Y and iii) Z <= DC1, the UE may be applied with power for PC2.

[0677] - if i) DC2 <= 12.5 or DC1 <=12.5, ii) 20<Y and iii) Z > DC1, the UE may be applied with power for PC3.

[0678] According to Table 33, if two thresholds(DC1 and DC2) are not indicated, the UE may be applied with power for PC1.5.

[0679] The above-mentioned contents (e.g., table 32 or table 33) about power class this clause (UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+29dBm(NR TDD))) may also be applied to UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+29dBm(NR FDD)).

[0680] It may be proposed to use [7-(1) to 7-(6)] for UE maximum output power transmission for the corresponding PC2 or PC1.5 EN-DC with E-UTRA FDD band and NR TDD band.

[0681] It may be proposed to use [7-(1) to 7-(6)] for UE maximum output power transmission for the corresponding PC2 or PC1.5 EN-DC with E-UTRA FDD band and NR FDD band.

[0682] 8. Inter-band EN-DC including PC1.5

[0683] For PC1.5 UE or PC2 UE supporting inter band EN-DC in FR1, the UE may need to indicate the corresponding capability to network(NW), such as its power class, e.g., PC1.5 using e.g. 'powerClass-v1610', and power class 2, power class 3 using e.g. 'ue-PowerClass' or 'ue-PowerClassPerBandPerBC-r17'or 'ue-CA-PowerClass-N', higher power limit using e.g. 'hitherPowerLimitMRDC-r17', delta power class (e.g, ΔPPowerClass, EN-DC, ΔPPowerClass, C), maximum uplink duty cycle, dynamic power sharing, TDM pattern, simultaneous Rx / Tx, Tx diversity, dualPA-architecture, and UL MIMO full power mode if supporting UL MIMO, together.

[0684] NW may need to indicate the maximum total transmit power to be used by the UE across all carriers for EN-DC, and the maximum total transmit power to be used by the UE across all carriers for E-UTRA, and the maximum total transmit power to be used by the UE across all carriers for NR, and the maximum transmit power to be used by the UE each carrier in frequency range 1(FR1). For example, the maximum total transmit power may be indicated with 'p-Max'. It may correspond to PEMAX, EN-DC, PLTE, PNR, PEMAX,cin UE configured transmission power. The maximum transmit power may be indicated with 'p-Max'. It may correspond to PEMAX, Cfor serving cell 'c' or serving cell carrier 'c' in UE configured transmission power.

[0685] 8-(1) Inter-band EN-DC including PC1.5: UE maximum output power

[0686] For inter-band EN-DC of E-UTRA and NR in FR1, the following UE Power Classes may define the maximum output power for any transmission bandwidth within the aggregated channel bandwidth. The maximum output power may be measured as the sum of the maximum output power at each UE antenna connector. The period of measurement may be at least one sub frame (1ms). UE maximum output power may be measured over all component carriers from different bands. If each band has separate antenna connectors, maximum output power may be measured as the sum of maximum output power at each UE antenna connector.

[0687] Table 34 shows the possible cases for PC1.5 supporting inter-band EN-DC with 2Tx.

[0688]

[0689] Table 35 shows the possible cases for PC2 supporting inter-band EN-DC with 2Tx.

[0690]

[0691] Table 36 may specify one example of the maximum output power.

[0692]

[0693]

[0694] 8-(1)-1. UE supporting a power class 3 for an EN-DC

[0695] If a UE supports a power class 3 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 36 and the supported power class enables the lower maximum output power or equal to that of the default power class:

[0696] - may apply all requirements for the default power class to the supported power class and set the configured transmitted power as specified in clause 8-(2)(=Inter-band EN-DC including PC1.5: Configured transmitted power);

[0697] 8-(1)-2. UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+23dBm(NR TDD))

[0698] Below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in this clause(8-(1)-2) may be assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC3(23dBm) for NR TDD band

[0699] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0700] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0701] i) If a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 3 for E-UTRA cell group and a power class 3 for NR cell group: (Table 21 or table 22, 23dBm + 23dBm) and ii) if UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0702] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0703] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0704] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2) ;

[0705] -- may apply all requirements for the power class 2 and set the configured transmitted power class as specified in sub-clause 2-(2)(=Configured output power for DC).

[0706] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0707] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0708] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 70%; or

[0709] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3) ;

[0710] -- may apply all requirements for the default power class and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0711] i) If a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 3 for E-UTRA cell group and a power class 3 for NR cell group: (Table 21 or table 22, 23dBm + 23dBm) and ii) UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0712] - may apply all requirements for the power class 2 and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0713] 8-(1)-2A.UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+23dBm(NR FDD))

[0714] Contents of clause 8-(1)-2(=UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+23dBm(NR TDD))) may be applied to UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+23dBm(NR FDD)).

[0715] 8-(1)-3. UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+26dBm(NR TDD))

[0716] Below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in this clause(8-(1)-3) may be assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC2(26dBm) for NR TDD band

[0717] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0718] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0719] Or, below UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-DC2' may be replaced by UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC3PC2-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC3PC2-DC2'. This capability may be proposed as one example.

[0720] - Capability maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC3PC2 includes the followings.

[0721] - maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC3PC2-DC1 = {n5, n10, n15, n20, n25, n30, n35, n40, n45, n50, n60, n70, n80, n90, n100}

[0722] - maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC3PC2-DC2 = {n5, n10, n15, n20, n25, n30, n35, n40, n45, n50, n60, n70, n80, n90, n100}

[0723] If below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in this clause(8-(1)-3)) may be assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC3(23dBm) for NR TDD band

[0724] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0725] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0726] 0.5 may be multiplied to maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in this clause(8-(1)-3)).

[0727] i) If a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 3 for E-UTRA cell group and a power class 2 for NR cell group: (Table 23 or table 24, 23dBm + 26dBm) and ii) if UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0728] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0729] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0730] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 70%; or

[0731] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3);

[0732] -- may apply all requirements for the default power class and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0733] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0734] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0735] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2);

[0736] -- may apply all requirements for the power class 2 and set the configured transmitted power class as specified in sub-clause 2-(2)(=Configured output power for DC).

[0737] i) If a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 3 for E-UTRA cell group and a power class 2 for NR cell group: (Table 23 or table 24, 23dBm + 26dBm) and ii) UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0738] - shall apply all requirements for the power class 2 and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0739] Or, If the UE indicates higherPowerLimitMRDC-r17 for an eligible EN-DC configuration as specified in Table 36,

[0740] - if a UE supports PPowerClass,EN-DCfor the band combination, Band A and Band B in Table 36, with PPowerClass,Afor Band A and PPowerClass,Bfor Band B, to solve SAR in inter-band EN-DC, the capability maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC1 may be multiplied by K. It is calculated by (K=1 / ΔphigherPowerLimit, EN-DC),

[0741] -- ΔphigherPowerLimit, EN-DCis the linear value of ΔPhigherPowerLimit, EN-DCwhich is given by {10 log10(pPowerClass,A+ pPowerClass,EN-DC,B) - PPowerClass,EN-DC).

[0742] For example,

[0743] - if a UE supports power class 2 for the band combination, Band A and Band B, with 23dBm for Band A and 26dBm for Band B,

[0744] -- K = 0.67

[0745] From these,

[0746] If a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 3 for E-UTRA cell group and a power class 2 for NR cell group: (23dBm + 26dBm)

[0747] If the UE indicates higherPowerLimitMRDC-r17, the supported power class (PPowerClass,EN-DC) may enable the higher maximum output power than the power class 2, K may be multiplied, with 0.67 as one example for 23dBm+26dBm.

[0748] If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0749] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than KxmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0750] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than KxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0751] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 70%; or

[0752] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3) ;

[0753] -- may apply all requirements for the default power class and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0754] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to KxmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0755] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to KxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0756] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2) ;

[0757] -- shall apply all requirements for the power class 2 and set the configured transmitted power class as specified in sub-clause 2-(2)(=Configured output power for DC).

[0758] If UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0759] - shall apply all requirements for the power class 2 and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0760] 8-(1)-3A.UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+26dBm(NR FDD))

[0761] Contents of clause 8-(1)-3(=UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+26dBm(NR TDD))) may be applied to UE supporting a power class 2 for an EN-DC (23dBm(E-UTRA FDD)+26dBm(NR FDD)).

[0762] 8-(1)-4.UE supporting a power class 2 for an EN-DC (26dBm(E-UTRA FDD)+23dBm(NR TDD))

[0763] Below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in this clause(8-(1)-4) may be assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC3(23dBm) for NR TDD band

[0764] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0765] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0766] Or, below UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-DC2' may be replaced by UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC2PC3-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC2PC3-DC2'. This capability may be proposed as one example.

[0767] - Capability maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC2PC3 includes the followings.

[0768] - maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC2PC3-DC1 = { n10, n20, n30, n40, n50, n60, n70, n80, n90, n100} (here, n10 means 10%.)

[0769] - maxUplinkDutyCycle-FDD-TDD-EN-PC2-PC2PC3-DC2 = { n10, n20, n30, n40, n50, n60, n70, n80, n90, n100}

[0770] i) If a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 2 for E-UTRA cell group and a power class 3 for NR cell group: (Table 25 or table 26, 26dBm + 23dBm) and ii) If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0771] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0772] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0773] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 35%; or

[0774] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3) ;

[0775] -- shall apply all requirements for the default power class and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0776] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0777] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to maxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0778] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2) ;

[0779] -- may apply all requirements for the power class 2 and set the configured transmitted power class as specified in sub-clause 2-(2)(=Configured output power for DC).

[0780] i) If a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 2 for E-UTRA cell group and a power class 3 for NR cell group: (Table 25 or table 26, 26dBm + 23dBm) and ii) UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0781] - may apply all requirements for the power class 2 and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0782] Or,

[0783] If the UE indicates higherPowerLimitMRDC-r17 for an eligible EN-DC configuration as specified in Table 36,

[0784] - if a UE supports PPowerClass,EN-DCfor the band combination, Band A and Band B in Table 3.1-1, with PPowerClass,Afor Band A and PPowerClass,Bfor Band B, to solve SAR in inter-band EN-DC, the capability maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC1 may be multiplied by K. It may be calculated by (K=1 / ΔphigherPowerLimit, EN-DC),

[0785] -- ΔphigherPowerLimit, EN-DCis the linear value of ΔPhigherPowerLimit, EN-DCwhich is given by {10 log10(pPowerClass,A+ pPowerClass,EN-DC,B) - PPowerClass,EN-DC).

[0786] For example,

[0787] - if a UE supports power class 2 for the band combination, Band A and Band B, with 23dBm for Band A and 26dBm for Band B,

[0788] -- K = 0.67

[0789] From these,

[0790] If a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 3.1-1 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 2 for E-UTRA cell group and a power class 3 for NR cell group: (26dBm + 23dBm) and

[0791] If the UE indicates higherPowerLimitMRDC-r17, the supported power class ( PPowerClass,EN-DC) may enables the higher maximum output power than the power class 2, K may be multiplied, with 0.67 as one example for 26dBm+23dBm

[0792] If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0793] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than KxmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0794] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than KxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0795] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 35%; or

[0796] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3) ;

[0797] -- may apply all requirements for the default power class and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0798] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to KxmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0799] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to KxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0800] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2);

[0801] -- shall apply all requirements for the power class 2 and set the configured transmitted power class as specified in sub-clause 2-(2)(=Configured output power for DC).

[0802] else if UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0803] - may apply all requirements for the power class 2 and set the configured transmitted power as specified sub-clause 2-(2)(=Configured output power for DC);

[0804] 8-(1)-4A.UE supporting a power class 2 for an EN-DC (26dBm(E-UTRA FDD)+23dBm(NR FDD))

[0805] Contents of clause 8-(1)-4(=UE supporting a power class 2 for an EN-DC (26dBm(E-UTRA FDD)+23dBm(NR TDD))) may be applied to UE supporting a power class 2 for an EN-DC (26dBm(E-UTRA FDD)+23dBm(NR FDD)).

[0806] 8-(1)-5.UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+26dBm(NR TDD))

[0807] Below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in this clause(8-(1)-5) may be assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC3(23dBm) for NR TDD band

[0808] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0809] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0810] Or, below '0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1' and '0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2' in this clause(8-(1)-5) may be replaced by 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC2-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC2-DC2', respectively, which are assumed to be configured based on PC2(26dBm) for E-UTRA FDD band and PC2(26dBm) for NR TDD band. UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-DC2' may be also replaced by UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC2-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC2-DC2'. This capability may be proposed as one example.

[0811] - Capability maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC2 includes the followings.

[0812] - maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC2-DC1 = {n5, n10, n15, n20, n25, n30, n35, n40, n45, n50, n60, n70, n80, n90, n100}

[0813] - maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC2-DC2 = {n5, n10, n15, n20, n25, n30, n35, n40, n45, n50, n60, n70, n80, n90, n100}

[0814] i) If a UE supports a power class 1.5 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 2 for E-UTRA cell group and a power class 2 for NR cell group: (Table 27, table 28 or table 29, 26dBm + 26dBm) and ii) If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0815] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0816] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0817] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 35%; or

[0818] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3);

[0819] -- may apply all requirements for the default power class and set the configured transmitted power as clause 8-(2)(=Inter-band EN-DC including PC1.5: Configured transmitted power).;

[0820] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is less than or equal to 25%; or

[0821] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 25) but less than or equal to 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 25%; or

[0822] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is less than or equal to 25%; or

[0823] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 25) but less than or equal to 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 25%; or

[0824] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2);

[0825] -- may apply all requirements for the power class 2 and set the configured transmitted power class as specified in clause 8-(2)(=Inter-band EN-DC including PC1.5: Configured transmitted power).

[0826] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 25) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 25%; or

[0827] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 25) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.5xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 25%; or

[0828] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 1.5 or lower (Here, lower means larger than power class 2 and lower than power class 1.5);

[0829] -- may apply all requirements for the power class 1.5 and set the configured transmitted power as clause 8-(2)(=Inter-band EN-DC including PC1.5: Configured transmitted power);

[0830] i) If a UE supports a power class 1.5 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 2 for E-UTRA cell group and a power class 2 for NR cell group: (Table 27, table 28 or table 29, 26dBm + 26dBm) and ii) if UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0831] - may apply all requirements for the power class 1.5 and set the configured transmitted power as clause 8-(2);

[0832] 8-(1)-5A.UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+26dBm(NR FDD))

[0833] Contents of clause 8-(1)-5(=UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+26dBm(NR TDD))) may be applied to UE supporting a power class 1.5 for an EN-DC (26dBm(E-UTRA FDD)+26dBm(NR FDD)).

[0834] 8-(2) Inter-band EN-DC including PC1.5: Configured transmitted power

[0835] For inter-band dual connectivity with one uplink serving cell or more than one uplink serving cells configured for intra-band UL CA on the E-UTRA CG and one uplink serving cell on the NR CG or more than one uplink serving cells configured for intra-band UL CA, the UE may be allowed to set its configured maximum output power PCMAX,c(i),ifor serving cell c(i) of CG i, i = 1,2, and its total configured maximum transmission power for EN-DC operation, PTotalEn-DC= 10log10(linear value of PTotalEn-DC) with (linear value of PTotalEn-DC) as specified in clause 7.6 of TS 38.213.

[0836] For EN-DC with more than one uplink serving cells configured for intra-band UL CA on the E-UTRA CG, the PCMAXmay apply to the entire E-UTRA CG.

[0837] For EN-DC with more than one uplink serving cells configured for intra-band UL CA on the NR CG, the PCMAX may apply to the entire NR CG. For a UE configured with EN-DC and serving cell frame structure type 1, if the UE is configured with subframeAssignment-r15 for the serving cell and E-UTRA Pcell is FDD, the UE may be not expected to be configured with more than one serving cells in the uplink.

[0838] The configured maximum output power PCMAX_ E-UTRA,c(p) in sub-frame p for the configured E-UTRA uplink carrier(s) may be set within the bounds:

[0839] - PCMAX_L_ E-UTRA,c(p) ≤ PCMAX_ E-UTRA,c(p) ≤ PCMAXH _ E-UTRA,c(p)

[0840] where PCMAX_L_ E-UTRA,candPCMAXH _ E-UTRA,care the limits for a serving cell c as specified in TS 36.101 clause 6.2.5 modified by PLTEas follows:

[0841] - PCMAX_L_ E-UTRA,c= MIN { PEMAX, EN-DC, (PPowerClass, EN-DC- ΔPPowerClass,EN-DC), MIN(PEMAX,c, PLTE) - ΔtC_ E-UTRA, c, (PPowerClass,E-UTRA- ΔPPowerClass,E-UTRA) - MAX(MPRc+ A-MPRc+ ΔTIB,c+ ΔtC_ E-UTRA, c+ ΔTProSe, P-MPRc)}

[0842] - PCMAXH _ E-UTRA,c= MIN {PEMAX,c, PEMAX, EN-DC, (PPowerClass, EN-DC- ΔPPowerClass,EN-DC), PLTE, PPowerClass,E-UTRA- ΔPPowerClass,E-UTRA}

[0843] For EN-DC with more than one uplink serving cells configured for intra-band UL CA on the E-UTRA CG, PCMAX_L_ E-UTRA,candPCMAXH _ E-UTRA,cmay be the limits for the E-UTRA CG as specified in TS　36.101　clause　6.2.5A modified by PLTEas follows:

[0844] - PCMAX_L_ E-UTRA,cMIN{10 log10ΣpEMAX,c- ΔTC, (PPowerClass,E-UTRA- ΔPPowerClass,E-UTRA) - MAX(MPR + A-MPR + ΔTIB,c+ ΔTC+ ΔTProSe, P-MPR), PLTE, PPowerClass,EN-DC}

[0845] - PCMAXH _ E-UTRA,c= MIN{10 log10ΣpEMAX,c, PPowerClass,E-UTRA, PLTE, PPowerClass,EN-DC}

[0846] The configured maximum output power PCMAX,f,c,NR(q) in physical-channel q for the configured NR carrier may be set within the bounds:

[0847] - PCMAX_L,f,c,NR(q) ≤ PCMAX,f,c,NR(q) ≤ PCMAX_H,f,c,NR(q)

[0848] where PCMAX_L,f,c,NRandPCMAX_H,f,c,NRmay be the limits for a serving cell c as specified in clause 6.2.4 of TS 38.101-1 V17.12.0modified as follows:

[0849] - PCMAX_L,f,c,NR= MIN { PEMAX, EN-DC, (PPowerClass, EN-DC- ΔPPowerClass,EN-DC), MIN(PEMAX,c, PNR) - ΔTC_NR, c, (PPowerClass,NR- ΔPPowerClass,NR) - MAX(MAX(MPRc, A-MPRc)+ ΔTIB,c+ ΔTC_NR, c+ ΔTRxSRS, P-MPRc) }

[0850] - PCMAX_H,f,c,NR= MIN {PEMAX,c, PEMAX, EN-DC, (PPowerClass, EN-DC- ΔPPowerClass,EN-DC), PNR, PPowerClass,NR- ΔPPowerClass,NR}

[0851] For EN-DC with more than one uplink serving cells configured for intra-band UL CA on the NR CG, PCMAX_L,f,c, NRandPCMAX_H,f,c, NRmay be the limits for the NR CG as specified in [TS 38.101-1 V17.12.0] subclause 6.2A.4 modified by PNRas follows:

[0852] - PCMAX_L,f,c,NR= MIN{10 log10ΣpEMAX,c- ΔTC, PEMAX,CA, PPowerClass,NR- MAX(MPR + A-MPR + ΔTIB,c+ ΔT_NR ,C+ ΔTRxSRS, P-MPR), PNR, PPowerClass,EN-DC}

[0853] - PCMAX_H,f,c,NR= MIN{10 log10ΣpEMAX,c, PEMAX,CA, PPowerClass,NR, PNR, PPowerClass,EN-DC}

[0854] where

[0855] - PEMAX,EN-DCis the value given by the field p-maxUE-FR1 of the RRCConnectionReconfiguration-v1530 IE as defined in TS 36.331. If the UE indicates higherPowerLimitMRDC-r17, PEMAX,EN-DCis increased by at least ΔPhigherPowerLimit, EN-DCin clause 8-(1). ;

[0856] - If more than one E-UTRA uplink serving cell is configured as intra-band UL CA in the E-UTRA CG, PPowerClassrefers to the maximum output power of the E-UTRA intra-band CA power class given in Table 6.2.2A-1 of TS　36.101,

[0857] - If more than one NR uplink serving cell is configured as intra-band UL CA in the NR CG, PPowerClassrefers to the maximum output power of the NR intra-band CA power class given in sub clause 6.2A.1 of [TS 38.101-1 V17.12.0],

[0858] - PLTEis the value given by the field p-maxEUTRA-r15 of the RRCConnectionReconfiguration-v1510 IE as defined in TS 36.331;

[0859] - If more than one E-UTRA uplink serving cell is configured as intra-band UL CA in the E-UTRA CG, MPRc= MPR and A-MPRc= A-MPR with MPR and A-MPR specified in clause 6.2.3A and clause 6.2.4A of TS　36.101　respectively. There is one power management term for the UE, denoted P-MPR, and P-MPRc= P-MPR. PCMAX_ E-UTRA,cis calculated under the assumption that the transmit power is increased by the same amount in dB on all component carriers within the E-UTRA CG.

[0860] - If more than one NR uplink serving cell is configured as intra-band UL CA in the NR CG, MPRcand A-MPRcare determined by subclause 6.2.2 of [TS 38.101-1 V17.12.0]. There is one power management term for the UE, denoted P-MPR, and P-MPRc= P-MPR.

[0861] - PNRis the value given by the field p-NR-FR1 of the PhysicalCellGroupConfig IE as defined in TS　38.331;

[0862] - Δtc_E-UTRA, c= 1.5 dB when NOTE 2 in Table 6.2.2-1 in TS 36.101 applies for a serving cell c, otherwise ΔTC_ E-UTRA,c= 0 dB;

[0863] - ΔTC_NR,c= 1.5dB when NOTE 3 in Table 6.2.1-1 in TS 38.101-1 V17.12.0applies for a serving cell c, otherwise ΔTC_NR,c= 0 dB; ΔTC_NR,Cis the highest value ΔTC_NR,Camong all serving cells c if more than one NR uplink serving cell is configured as intra-band UL CA in the NR CG;

[0864] - PPowerClass, EN-DCis the nominal UE power class indicated by PowerClass defined in clause 6.2B.1.3 for inter-band EN-DC; if the UE indicates higherPowerLimitMRDC-r17 and ΔPPowerClass,EN-DC= 0, PPowerClass,EN-DCis replaced by the sum of the linear powers of PPowerClass,NRand PPowerClass,E-UTRAconverted to dB;

[0865] - ΔPPowerClass,EN-DC

[0866] -- For a power class 2 capable EN-DC UE, it is 3 dB when requirements of default power class had been applied as specified in clause 8-(1); otherwise ΔPPowerClass,EN-DC= 0 dB;

[0867] -- For a power class 1.5 capable EN-DC UE, it is 6 dB when requirements of default power class had been applied as specified in clause 8-(1); and it is 3dB when the requirements of power class 2 are applied as specified in clause 8-(1); otherwise ΔPPowerClass,EN-DC= 0 dB;

[0868] - NOTE: ΔPPowerClass,EN-DCreporting capability XXX-r18, as defined in TS 38.306, is used to report ΔPPowerClass,EN-DCwhen the network configures the UE with the reporting and the reporting is triggered only by uplink duty cycle exceedance or by return to the powerClass after the duty cycle exceedance.

[0869] - PPowerClass,NRis the nominal UE power of the power class indicated by ue-PowerClass that the UE supports for the NR band and for NR intra-band UL CA of the EN-DC combination as defined in clause 6.2.1 or 6.2A1.1 of 38.101-1; in case IE powerClassNRPart-r16 as defined in TS 38.331 is indicated, PPowerClass,NRshould use that value instead;

[0870] - ΔPPowerClass,NRis 3 dB or 0 dB according to clause 6.2.4 of TS 38.101-1 V17.12.0for a UE that supports power class 2 in the NR band of the EN-DC combination as defined in clause 6.2.1 of TS 38.101-1 V17.12.0;

[0871] - ΔPPowerClass,NRis 6dB or 3 dB or 0 dB according to clause 6.2.4 of TS 38.101-1 V17.12.0for a UE that supports power class 1.5 in the NR band of the EN-DC combination as defined in clause 6.2.1 of TS 38.101-1 V17.12.0;

[0872] - PPowerClass,E-UTRAis the nominal UE power of the power class indicated by ue-PowerClass-N-r13 that the UE supports for the E-UTRA band or indicated by ue-CA-PowerClass-N E-UTRA intra-band UL CA of the EN-DC combination as defined in clause 6.2.2 or 6.2.2A of 36.101;

[0873] - ΔPPowerClass,E-UTRAis 3 dB or 0 dB according to clause 6.2.5 of TS 36.101 for a UE that supports power class 2 in the E-UTRA band of the EN-DC combination as defined in clause 6.2.2 of TS 36.101;

[0874] - ΔTIB,cspecified in clause 6.2B.4.2.3 for EN-DC, the individual Power Class defined in table 6.2B.1.3 and any other additional power reductions parameters specified in clauses 6.2B.2 and 6.2B.3for EN-DC are applicable to PCMAX_ E-UTRA,cand PCMAX,f,c,NRevaluations.

[0875] - ΔTRxSRSis the highest value among all serving cells c.

[0876] If the transmissions from NR and E-UTRA do not overlap, then the complete clauses for configured transmitted power for E-UTRA and NR respectively from their own specifications may apply with the modifications specified above. The lower value between PPowerClass, EN-DCor PEMAX, EN-DCmay not be exceeded at any time by UE.

[0877] -PTotalEn-DC= 10log10(linear value of PTotalEn-DC) with PTotalEn-DCthe configured maximum transmission power for EN-DC operation as specified in clause 7.6 of TS 38.213.

[0878] The total configured maximum transmission power for both synchronous and non-synchronous operation may be

[0879] - PTotalEn-DC= MIN { PEMAX, EN-DC,PPowerClass, EN-DC- ΔPPowerClass, EN-DC}

[0880] If the UE does not support dynamic power sharing,

[0881] - PTotalEn-DC= MIN { PEMAX, EN-DC,PPowerClass, EN-DC- ΔPPowerClass, EN-DC} + 0.3 dB

[0882] If the EN-DC UE does not support dynamic power sharing, then the complete clauses for configured transmitted power for E-UTRA and NR respectively from their own specifications TS 36.101 and TS 38.101-1 V17.12.0respectively apply with the modifications specified above and PTotalEn-DCapplies.

[0883] When a UE supporting dynamic sharing is configured for overlapping E-UTRA uplink and NR uplink transmissions, the UE can set its configured maximum output power PCMAX_ E-UTRA,cand PCMAX,f,c,NRfor the configured E-UTRA and NR uplink carriers, respectively, and its configured maximum transmission power for EN-DC operation, (linear value of PTotalEn-DC), as specified above.

[0884] The measured total maximum output power PUMAXover both CGs / RATs, measured over the transmission reference time duration may be

[0885] - PUMAX= 10 log10[pUMAX,c,E-UTRA+ pUMAX,c,NR],

[0886] where pUMAX,c,E-UTRAand pUMAX,c,NRdenotes the measured output power of serving cell c for E-UTRA and NR respectively, expressed in linear scale.

[0887] The measured total configured maximum output power PUMAXmay be within the following bounds:

[0888] - PCMAX_L-TLOW(PCMAX_L) ≤ PUMAX≤ PCMAX_H+ THIGH(PCMAX_H)

[0889] with the tolerances TLOW(PCMAX_H) and THIGH(PCMAX_H) for applicable values of PCMAXspecified in Table 38.

[0890] When an UL subframe transmission p from E-UTRA overlap with a physical-channel q from the NR, then for PUMAXevaluation, the E-UTRA subframe p may be taken as reference period TREFand always considered as the reference measurement duration and the following rules may be applicable.

[0891] TREFand Tevalare specified in Table 37 when same or different subframe and physical-channel durations are used in aggregated carriers. The lesser of PPowerClass ,EN-DCand PEMAX,EN-DCshall not be exceeded by the UE during any evaluation period of time where PPowerClass ,EN-DCis replaced by the sum of the linear powers of PPowerClass,NRand PPowerClass,E-UTRAconverted to dB if the UE indicates higherPowerLimitMRDC-r17.

[0892] Table 37 shows PCMAXevaluation window.

[0893]

[0894] For each TREF, the PCMAX_Hmay be evaluated per Tevaland given by the maximum value over the transmission(s) within the Tevalas follows:

[0895] - PCMAX_H= MAX { PCMAX_ EN-DC _H(p,q) , PCMAX_ EN-DC _H(p,q+1), ... , PCMAX_ EN-DC _H(p,q+n) }

[0896] where PCMAX_ EN-DC _Hmay be the applicable upper limits for each overlapping scheduling unit pairs (p,q) , (p, q+1) , up to (p, q+n) for each applicable Tevalduration, where q+n may be the last NR UL physical-channel overlapping with E-UTRA subframe p.

[0897] While PCMAX_Lmay be computed as follows:

[0898] - PCMAX_L= MIN { PCMAX_ EN-DC _L(p,q) , PCMAX_ EN-DC _L(p,q+1), ... , PCMAX_ EN-DC _L(p,q+n)}

[0899] where PCMAX_EN-DC_Lmay be the applicable lower limits for each overlapping scheduling unit pairs (p,q) , (p, q+1) , up to (p, q+n) for each applicable Tevalduration, where q+n may be the last NR UL physical-channel overlapping with E-UTRA subframe p,

[0900] With

[0901] - PCMAX_ EN-DC _H(p,q) = MIN {10 log10[pCMAXH _ E-UTRA,c(p) + pCMAXH,f,c,NR(q)], PEMAX, EN-DC,PPowerClass, EN-DC}

[0902] And:

[0903] - a= 10 log10[pCMAX_ E-UTRA,c(p) +pCMAX,f,c,NR(q) ] > PTotalEn-DC

[0904] - b= 10 log10[pCMAX_ E-UTRA,c(p) +pCMAX,f,c,NR(q) / X_scale] > PTotalEn-DC

[0905] If a= FALSE

[0906] - PCMAX_ EN-DC _L(p,q) = MIN {10 log10[pCMAXL _ E-UTRA,c(p) + pCMAXL,f,c,NR(q)], PEMAX, EN-DC,PPowerClass, EN-DC}

[0907] ELSE If (a=TRUE) AND (b=FALSE)

[0908] - PCMAX_ EN-DC _L(p,q) = MIN {10 log10[pCMAXL _ E-UTRA,c(p) + pCMAXL,f,c,NR(q) / X_scale ], PEMAX, EN-DC,PPowerClass, EN-DC}

[0909] ELSE If b= TRUE

[0910] - PCMAX_ EN-DC _L(p,q) = MIN {10 log10[pCMAXL _ E-UTRA,c(p) ], PEMAX, EN-DC,PPowerClass, EN-DC}

[0911] where

[0912] - pCMAXH _ E-UTRA,c(p) may be the E-UTRA higher limit of the maximum configured power expressed in linear scale;

[0913] - pCMAXL,f,c,NR(q) may be the NR higher limit of the maximum configured power expressed in linear scale;

[0914] - pCMAXL _ E-UTRA,c(p) may be the E-UTRA lower limit of the maximum configured power expressed in linear scale;

[0915] - pCMAXL,f,c,NR(q) may be the NR lower limit of the maximum configured power expressed in linear scale;

[0916] - PPowerClass, EN-DCmay be defined in clause 2-(1)-1 for inter-band EN-DC; if the UE indicates higherPowerLimitMRDC-r17, PPowerClass,EN-DCis replaced by the sum of the linear powers of PPowerClass,NRand PPowerClass,E-UTRAconverted to dB;

[0917] - X_scale may be the linear value of X dB which is configured by RRC and can only take values [0 , 6]

[0918] - pCMAX_ E-UTRA,c(p) may be the linear value of PCMAX_ E-UTRA,c(p), the configured max power for E-UTRA. If more than one E-UTRA uplink serving cell is configured as intra-band UL CA in the E-UTRA CG, PCMAX_ E-UTRA,c(p) will be replaced by PCMAX(p) which is the configured maximum power for the entire E-UTRA CG.

[0919] - pCMAX,f,c,NR(q) may be the linear value of PCMAX,f,c,NR(q), the configured max power of NR, If more than one NR uplink serving cell is configured as intra-band UL CA in the NR CG, PCMAX_ NR,c(q) will be replaced by PCMAX(q) which is the configured maximum power for the entire NR CG.

[0920] Table 38 shows PCMAXtolerance for Dual Connectivity E-UTRA-NR.

[0921]

[0922] When E-UTRA and NR transmissions overlap and the condition (If (a=TRUE) AND (b=FALSE)) is met, SCG may be transmitted and the following supplementary minimum requirement apply for the measured SCG power, PUMAX,f,c,NR(q), under nominal conditions.

[0923] - 10log(pCMAXL,f,c,NR(q) / X_scale) - TLOW(10log(pCMAXL,f,c,NR(q) / X_scale) )} ≤ PUMAX,f,c,NR(q) ≤ 10log(pCMAXH, f,c,NR(q)) + THIGH(10log(pCMAXH, f,c,NR(q))).

[0924] with the tolerances TLOWand THIGHfor applicable values of PCMAXspecified in Table 38.

[0925] 8-(3) Inter-band EN-DC including PC1.5: Behavior of UE configured transmitted power

[0926] FIG.7 show an example of behavior of UE configured transmission power for inter-band CA according to a disclosure of the present specification.

[0927] FIG.7 may show a behavior of UE configured transmission power for supporting inter band EN-DC including PC1.5 and the requirements to be tested.

[0928] maxUplinkDutyCycle-interBandENDC-FDD-TDD-PC2-r16 may include maxUplinkDutyCycle-FDD-TDD-EN-DC1(e.g., DC1 in the present specification) and maxUplinkDutyCycle-FDD-TDD-EN-DC2(e.g., DC2 in the present specification) which indicate the maxUplinkDutyCycle capability of NR band corresponding to different LTE reference configurations

[0929] Here, PH may be Power Headroom.

[0930] 9. Inter-band EN-DC including PC1.5 with NR UL MIMO

[0931] For PC1.5 UE or PC2 UE supporting inter band EN-DC with NR UL MIMO in FR1, the UE may need to indicate the corresponding capability to network(NW), such as its power class, e.g., PC1.5 using e.g. 'powerClass-v1610', and power class 2, power class 3 using e.g. 'ue-PowerClass' or 'ue-PowerClassPerBandPerBC-r17'or 'ue-CA-PowerClass-N', higher power limit using e.g. 'hitherPowerLimitMRDC-r17', delta power class (e.g, ΔPPowerClass, EN-DC, ΔPPowerClass, C), maximum uplink duty cycle, dynamic power sharing, TDM pattern, simultaneous Rx / Tx, Tx diversity, dualPA-architecture, and UL MIMO full power mode, together.

[0932] NW may need to indicate the maximum total transmit power to be used by the UE across all carriers for EN-DC, and the maximum total transmit power to be used by the UE across all carriers for E-UTRA, and the maximum total transmit power to be used by the UE across all carriers for NR, and the maximum transmit power to be used by the UE each carrier in frequency range 1(FR1). For example, the maximum total transmit power may be indicated with 'p-Max'. It may correspond to PEMAX, EN-DC, PLTE, PNR, PEMAX,cin UE configured transmission power. The maximum transmit power may be indicated with 'p-Max'. It may correspond to PEMAX, Cfor serving cell 'c' or serving cell carrier 'c' in UE configured transmission power.

[0933] 9-(1) Inter-band CA including PC1.5 with NR UL MIMO: UE maximum output power

[0934] For inter-band EN-DC of E-UTRA and NR with UL MIMO in FR1, the following UE Power Classes define the maximum output power for any transmission bandwidth within the aggregated channel bandwidth. The maximum output power may be measured as the sum of the maximum output power at each UE antenna connector. The period of measurement may be at least one sub frame (1ms). UE maximum output power may be measured over all component carriers from different bands. If each band has separate antenna connectors, maximum output power may be measured as the sum of maximum output power at each UE antenna connector.

[0935] Table 39 shows possible cases for PC1.5 supporting inter-band EN-DC with UL MIMO with 3Tx.

[0936]

[0937] Table 40 shows possible cases for PC2 supporting inter-band EN-DC with UL MIMO with 3Tx.

[0938]

[0939] Table 41 shows Maximum output power for inter-band EN-DC with NR UL MIMO (two bands).

[0940]

[0941]

[0942] 9-(1)-1. UE supporting a power class 3 for an EN-DC with NR UL MIMO

[0943] The requirements in clause [8-(1)-1] may apply to a UE supports a power class 3 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 41.

[0944] 9-(1)-2. UE supporting a power class 2 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+23dBm(NR TDD))

[0945] The requirements in clause [8-(1)-2] may apply to a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 41 with PC3 for E-UTRA and PC3 with UL MIMO for NR.

[0946] - PC3(23dBm) for E-UTRA and PC3(23dBm) with UL MIMO for NR.

[0947] 9-(1)-3.UE supporting a power class 2 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+2x23dBm(NR TDD))

[0948] The requirements in clause [8-(1)-3] apply to a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 41 with PC3 for E-UTRA and PC2 with UL MIMO for NR.

[0949] - PC3(23dBm) for E-UTRA and PC2(2x23dBm) with UL MIMO for NR.

[0950] 9-(1)-4.UE supporting a power class 2 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+ 23dBm(NR TDD))

[0951] The requirements in clause [8-(1)-4] may apply to a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 41 with PC2 for E-UTRA and PC3 with UL MIMO for NR.

[0952] - PC2(26dBm) for E-UTRA and PC3(23dBm) with UL MIMO for NR.

[0953] 9-(1)-5.UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+2x23dBm(NR TDD))

[0954] The requirements in clause [8-(1)-5] may apply to a UE supports a power class 1.5 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 41 with PC2 for E-UTRA and PC2 with UL MIMO for NR.

[0955] - PC2(26dBm) for E-UTRA and PC2(2x23dBm) with UL MIMO for NR.

[0956] 9-(1)-6.UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+2x26dBm(NR TDD))

[0957] Below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in [9-(1)-6] may be assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC3(23dBm) for NR TDD band

[0958] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0959] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0960] Or, below '0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1' and '0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2' in [3.1H.1.6] are replaced by 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC3PC1dot5-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC3PC1dot5-DC2', respectively, which are assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC1.5(29dBm) for NR TDD band. UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-DC2' are also replaced by UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC3PC1dot5-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC3PC1dot5-DC2'. This capability is proposed as one example.

[0961] - Capability maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC3PC1dot5 includes the followings.

[0962] - maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC3PC1dot5-DC1 = {n5, n7.5, n10, n12.5, n15, n17.5, n20, n22.5, n25, n30, n40, n50, n60, n70, n80, n90, n100}

[0963] - maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC3PC1dot5-DC2 = {n5, n7.5, n10, n12.5, n15, n17.5, n20, n22.5, n25, n30, n40, n50, n60, n70, n80, n90, n100}

[0964] If below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in [9-(1)-6] is assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC2(26dBm) for NR TDD band

[0965] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0966] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[0967] 0.25 in [9-(1)-6] may be replaced by 0.5.

[0968] If a UE supports a power class 1.5 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 3 for E-UTRA cell group and a power class 1.5 for NR cell group: (Table 30 or table 31, 23dBm + 29dBm)

[0969] If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0970] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0971] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[0972] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 70%; or

[0973] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3) ;

[0974] -- may apply all requirements for the default power class and set the configured transmitted power as [3.1.2].;

[0975] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is less than or equal to 12.5%; or

[0976] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 12.5) but less than or equal to 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 12.5%; or

[0977] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is less than or equal to 12.5%; or

[0978] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 12.5) but less than or equal to 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 12.5%; or

[0979] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2) ;

[0980] -- shall apply all requirements for the power class 2 and set the configured transmitted power class as specified in [3.1.2].

[0981] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 12.5) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 12.5%; or

[0982] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 12.5) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 12.5%; or

[0983] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 1.5 or lower (Here, lower means larger than power class 2 and lower than power class 1.5) ;

[0984] -- may apply all requirements for the power class 1.5 and set the configured transmitted power as [8-(2)];

[0985] Else if UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0986] -- may shall apply all requirements for the power class 1.5 and set the configured transmitted power as [8-(2)];

[0987] Or,

[0988] If the UE indicates higherPowerLimitMRDC-r17 for an eligible EN-DC configuration as specified in Table 36,

[0989] - if a UE supports PPowerClass,EN-DCfor the band combination, Band A and Band B in Table 36, with PPowerClass,Afor Band A and PPowerClass,Bfor Band B, to solve SAR in inter-band EN-DC, the capability maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC1 are multiplied by K. It is calculated by (K=1 / ΔphigherPowerLimit, EN-DC),

[0990] -- ΔphigherPowerLimit, EN-DCis the linear value of ΔPhigherPowerLimit, EN-DCwhich is given by {10 log10(pPowerClass,A+ pPowerClass,EN-DC,B) - PPowerClass,EN-DC).

[0991] For example

[0992] - if a UE supports power class 1.5 for the band combination, Band A and Band B, with 23dBm for Band A and 29dBm(2x26dBm) for Band B,

[0993] -- K = 0.8

[0994] - if a UE supports power class 1.5 for the band combination, Band A and Band B, with 26dBm for Band A and 29dBm(2x26dBm) for Band B,

[0995] -- K = 0.67

[0996] To differentiate K, the corresponding UE capability is proposed to be defined.

[0997] - For example, scaledUplinkDutyCycle-interBand-EN-DC = {0.67, 0.8, 1.0}

[0998] i) If a UE supports a power class 1.5 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 3 for E-UTRA cell group and a power class 1.5 for NR cell group: (Table 30 or table 31, 23dBm + 29dBm) and ii) If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[0999] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[1000] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[1001] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 70%; or

[1002] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3) ;

[1003] -- may apply all requirements for the default power class and set the configured transmitted power as [8-(2)].;

[1004] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is less than or equal to 12.5%; or

[1005] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 12.5) but less than or equal to 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 12.5%; or

[1006] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is less than or equal to 12.5%; or

[1007] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 12.5) but less than or equal to 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 12.5%; or

[1008] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2) ;

[1009] -- may apply all requirements for the power class 2 and set the configured transmitted power class as specified in [8-(2)].

[1010] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 40% and 70%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 12.5) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 12.5%; or

[1011] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 40%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 12.5) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 12.5%; or

[1012] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 1.5 or lower (Here, lower means larger than power class 2 and lower than power class 1.5);

[1013] -- may apply all requirements for the power class 1.5 and set the configured transmitted power as [8-(2)];

[1014] else if UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[1015] - may apply all requirements for the power class 1.5 and set the configured transmitted power as [8-(2)];

[1016] 9-(1)-7.UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+2x26dBm(NR TDD))

[1017] Below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in [9-(1)-7] may be assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC3(23dBm) for NR TDD band

[1018] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[1019] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[1020] Or, below '0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1' and '0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2' in [9-(1)-7] are replaced by 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC1dot5-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC1dot5-DC2', respectively, which are assumed to be configured based on PC2(26dBm) for E-UTRA FDD band and PC1.5(29dBm) for NR TDD band. UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-DC2' are also replaced by UE capability 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC1dot5-DC1' and 'maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC1dot5-DC2'. This capability is proposed as one example.

[1021] - Capability maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC1dot5 includes the followings.

[1022] - maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC1dot5-DC1 = {n5, n7.5, n10, n12.5, n15, n17.5, n20, n22.5, n25, n30, n40, n50, n60, n70, n80, n90, n100}

[1023] - maxUplinkDutyCycle-FDD-TDD-EN-PC1dot5-PC2PC1dot5-DC2 = {n5, n7.5, n10, n12.5, n15, n17.5, n20, n22.5, n25, n30, n40, n50, n60, n70, n80, n90, n100}

[1024] If below maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2 in [3.1H.1.7] is assumed to be configured based on PC3(23dBm) for E-UTRA FDD band and PC2(26dBm) for NR TDD band

[1025] - maxUplinkDutyCycle-FDD-TDD-EN-DC1 = {n30, n40, n50, n60, n70, n80, n90, n100}

[1026] - maxUplinkDutyCycle-FDD-TDD-EN-DC2 = {n30, n40, n50, n60, n70, n80, n90, n100}

[1027] 0.25 in [9-(1)-7] may be replaced by 0.5.

[1028] i) If a UE supports a power class 1.5 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 2 for E-UTRA cell group and a power class 1.5 for NR cell group: (Table 32 or table 33, 26dBm + 29dBm) and ii) If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[1029] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[1030] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[1031] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 35%; or

[1032] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3);

[1033] -- may apply all requirements for the default power class and set the configured transmitted power as [3.1.2].;

[1034] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is less than or equal to 12.5%; or

[1035] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 12.5) but less than or equal to 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 12.5%; or

[1036] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is less than or equal to 12.5%; or

[1037] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 12.5) but less than or equal to 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 12.5%; or

[1038] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2) ;

[1039] -- may apply all requirements for the power class 2 and set the configured transmitted power class as specified in [3.1.2].

[1040] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 12.5) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 12.5%; or

[1041] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 12.5) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 12.5%; or

[1042] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 1.5 or lower (Here, lower means larger than power class 2 and lower than power class 1.5);

[1043] -- may apply all requirements for the power class 1.5 and set the configured transmitted power as [8-(2)];

[1044] else if UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[1045] - may apply all requirements for the power class 1.5 and set the configured transmitted power as [8-(2)];

[1046] Or,

[1047] If the UE indicates higherPowerLimitMRDC-r17 for an eligible EN-DC configuration as specified in Table 36,

[1048] - if a UE supports PPowerClass,EN-DCfor the band combination, Band A and Band B in Table 36, with PPowerClass,Afor Band A and PPowerClass,Bfor Band B, to solve SAR in inter-band EN-DC, the capability maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC1 are multiplied by K. It is calculated by (K=1 / ΔphigherPowerLimit, EN-DC),

[1049] -- ΔphigherPowerLimit, EN-DCis the linear value of ΔPhigherPowerLimit, EN-DCwhich is given by {10 log10(pPowerClass,A+ pPowerClass,EN-DC,B) - PPowerClass,EN-DC).

[1050] For example

[1051] - if a UE supports power class 1.5 for the band combination, Band A and Band B, with 23dBm for Band A and 29dBm(2x26dBm) for Band B,

[1052] -- K = 0.8

[1053] - if a UE supports power class 1.5 for the band combination, Band A and Band B, with 26dBm for Band A and 29dBm(2x26dBm) for Band B,

[1054] -- K = 0.67

[1055] To differentiate K, the corresponding UE capability may be proposed to be defined.

[1056] - For example, scaledUplinkDutyCycle-interBand-EN-DC = {0.67, 0.8, 1.0}

[1057] i) If a UE supports a power class 1.5 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination in Table 36 and the supported power class enables higher maximum output power than that of the default power class and the UE supports a power class 2 for E-UTRA cell group and a power class 1.5 for NR cell group: (Table 32 or table 33, 26dBm + 29dBm) and ii) If UE indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[1058] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[1059] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame); or

[1060] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no less than 35%; or

[1061] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the default class or lower (Here, lower means larger than power class 3 and lower than power class 3);

[1062] -- may apply all requirements for the default power class and set the configured transmitted power as [8-(2)];

[1063] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is less than or equal to 12.5%; or

[1064] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 12.5) but less than or equal to 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 12.5%; or

[1065] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is less than or equal to 12.5%; or

[1066] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is larger than (0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 12.5) but less than or equal to 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 12.5%; or

[1067] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 2 or lower (Here, lower means larger than power class 3 and lower than power class 2);

[1068] -- may apply all requirements for the power class 2 and set the configured transmitted power class as specified in [8-(2)].

[1069] - Else if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is between 20% and 35%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 - 12.5) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC1 is larger than 12.5%; or

[1070] - if the percentage of EUTRA uplink symbols transmitted in a certain evaluation period is no larger than 20%, and the percentage of NR uplink symbols transmitted in a certain evaluation period is less than or equal to (0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 - 12.5) as defined in TS 38.331 (The exact evaluation period is no less than one radio frame) when 0.25xKxmaxUplinkDutyCycle-FDD-TDD-EN-DC2 is larger than 12.5%; or

[1071] - if the IE p-maxUE-FR1 as defined in TS 38.331 is provided and set to the maximum output power of the power class 1.5 or lower (Here, lower means larger than power class 2 and lower than power class 1.5) ;

[1072] -- may apply all requirements for the power class 1.5 and set the configured transmitted power as [8-(2)];

[1073] else if UE not indicating the two capabilities maxUplinkDutyCycle-FDD-TDD-EN-DC1 and maxUplinkDutyCycle-FDD-TDD-EN-DC2:

[1074] - may apply all requirements for the power class 1.5 and set the configured transmitted power as [8-(2)];

[1075] 9-(1)-2A. UE supporting a power class 2 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+23dBm(NR FDD))

[1076] Contents of clause 9-(1)-2(=UE supporting a power class 2 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+23dBm(NR TDD)) may be applied to UE supporting a power class 2 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+23dBm(NR FDD)).

[1077] 9-(1)-3A.UE supporting a power class 2 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+2x23dBm(NR FDD))

[1078] Contents of clause 9-(1)-3(=UE supporting a power class 2 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+2x23dBm(NR TDD))) may be applied to UE supporting a power class 2 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+2x23dBm(NR FDD)).

[1079] 9-(1)-4A.UE supporting a power class 2 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+ 23dBm(NR FDD))

[1080] Contents of clause 9-(1)-4(=UE supporting a power class 2 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+ 23dBm(NR TDD))) may be applied to UE supporting a power class 2 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+ 23dBm(NR FDD)).

[1081] 9-(1)-5A.UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+2x23dBm(NR FDD))

[1082] Contents of clause 9-(1)-5(=UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+2x23dBm(NR TDD))) may be applied to UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+2x23dBm(NR FDD)).

[1083] 9-(1)-6A.UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+2x26dBm(NR FDD))

[1084] Contents of clause 9-(1)-6(=UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+2x26dBm(NR TDD))) may be applied to UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (23dBm(E-UTRA FDD)+2x26dBm(NR FDD)).

[1085] 9-(1)-7A.UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+2x26dBm(NR FDD))

[1086] Contents of clause 9-(1)-7(=UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+2x26dBm(NR TDD))) may be applied to UE supporting a power class 1.5 for an EN-DC with NR UL MIMO (26dBm(E-UTRA FDD)+2x26dBm(NR FDD)).

[1087] 9-(2)Inter-band EN-DC including PC1.5 with NR UL MIMO: Configured transmitted power

[1088] For inter-band EN-DC with NR UL MIMO in one of the two frequency bands, the requirements in [8-(2)] may apply except that:

[1089] - PPowerClass,EN-DCis the maximum UE power specified in Table 41 without taking into account the tolerance;

[1090] - If the NR component carrier is configured with UL MIMO, the MPRc and A-MPRc are specified in clause 6.2D.2 and clause 6.2D.3 of [TS 38.101-1 V17.12.0] respectively.

[1091] - ΔPPowerClass,CA:

[1092] -- For a power class 2 capable UE, it is 3dB when the requirements of default power class are applied as specified in [3.1H.1], otherwise ΔPPowerClass, CA= 0 dB;

[1093] -- For a power class 1.5 capable UE, it is 6dB when the requirements of default power class are applied as specified in [9-(1)]; and it is 3dB when the requirements of power class 2 are applied as specified in [9-(1)]; otherwise ΔPPowerClass, CA= 0 dB;

[1094] 9-(3)Inter-band EN-DC including PC1.5 with NR UL MIMO: Behaviour of UE configured transmitted power

[1095] FIG. 7 may be applied to this clause.

[1096] FIG. 7 may be applied for a behavior of UE configured transmission power for supporting inter band EN-DC with NR UL MIMO including PC1.5 and the requirements to be tested.

[1097] FIG. 7 may be applied for behavior of UE configured transmission power for inter-band EN-DC with NR UL MIMO.

[1098] Here, PH may be Power Headroom.

[1099] 10. Inter-band EN-DC including PC1.5 with NR Tx diversity

[1100] For PC1.5 UE or PC2 UE supporting inter band EN-DC with NR Tx diversity in FR1, the UE may need to indicate the corresponding capability to network(NW), such as its power class, e.g., PC1.5 using e.g. 'powerClass-v1610', and power class 2, power class 3 using e.g. 'ue-PowerClass' or 'ue-PowerClassPerBandPerBC-r17'or 'ue-CA-PowerClass-N', higher power limit using e.g. 'hitherPowerLimitMRDC-r17', delta power class (e.g, ΔPPowerClass, EN-DC, ΔPPowerClass, C), maximum uplink duty cycle, dynamic power sharing, TDM pattern, simultaneous Rx / Tx, Tx diversity(e.g, txDiversity-r16 or txDiversity2Tx-r18), and dualPA-architecture, together.

[1101] NW may need to indicate the maximum total transmit power to be used by the UE across all carriers for EN-DC, and the maximum total transmit power to be used by the UE across all carriers for E-UTRA, and the maximum total transmit power to be used by the UE across all carriers for NR, and the maximum transmit power to be used by the UE each carrier in frequency range 1(FR1). For example, the maximum total transmit power can be indicated with 'p-Max'. It may correspond to PEMAX, EN-DC, PLTE, PNR, PEMAX,cin UE configured transmission power. The maximum transmit power may be indicated with 'p-Max'. It may correspond to PEMAX, Cfor serving cell 'c' or serving cell carrier 'c' in UE configured transmission power.

[1102] 10-(1) Inter-band EN-DC including PC1.5 with NR Tx diversity: UE maximum output power

[1103] For inter-band EN-DC of E-UTRA and NR in FR1, the following UE Power Classes define the maximum output power for any transmission bandwidth within the aggregated channel bandwidth. The maximum output power may be measured as the sum of the maximum output power at each UE antenna connector. The period of measurement may be at least one sub frame (1ms). UE maximum output power may be measured over all component carriers from different bands. If each band has separate antenna connectors, maximum output power may be measured as the sum of maximum output power at each UE antenna connector.

[1104] Table 42 shows possible cases for PC1.5 supporting inter-band EN-DC with NR Tx diversity.

[1105]

[1106] Table 43 shows possible cases for PC2 supporting inter-band EN-DC with NR Tx diversity.

[1107]

[1108] Table 44 shows Maximum output power for inter-band EN-DC with NR Tx diversity (two bands).

[1109]

[1110]

[1111] 10-(1)-1. UE supporting a power class 3 for an EN-DC with NR Tx diversity

[1112] The requirements in clause [9-(1)-1] may apply to a UE supports a power class 3 for an E-UTRA TDD and NR TDD Inter-band EN-DC band combination listed in Table 43.

[1113] 10-(1)-2. UE supporting a power class 2 for an EN-DC with NR Tx diversity (23dBm(E-UTRA FDD)+23dBm(NR TDD))

[1114] The requirements in clause [9-(1)-2] may apply to a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 43 with PC3 for E-UTRA and PC3 with Tx diversity for NR.

[1115] - PC3(23dBm) for E-UTRA and PC3(23dBm) with Tx diversity for NR.

[1116] 10-(1)-3. UE supporting a power class 2 for an EN-DC with NR Tx diversity (23dBm(E-UTRA FDD)+2x23dBm(NR TDD))

[1117] The requirements in clause [9-(1)-3] may apply to a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 43 with PC3 for E-UTRA and PC2 with Tx diversity for NR.

[1118] - PC3(23dBm) for E-UTRA and PC2(2x23dBm) with Tx diversity for NR.

[1119] 10-(1)-4. UE supporting a power class 2 for an EN-DC with NR Tx diversity (26dBm(E-UTRA FDD)+23dBm(NR TDD))

[1120] The requirements in clause [9-(1)-4] may apply to a UE supports a power class 2 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 43 with PC6 for E-UTRA and PC3 with Tx diversity for NR.

[1121] - PC2(26dBm) for E-UTRA and PC3(23dBm) with Tx diversity for NR.

[1122] 10-(1)-5. UE supporting a power class 1.5 for an EN-DC with NR Tx diversity (26dBm(E-UTRA FDD)+2x23dBm(NR TDD))

[1123] The requirements in clause [9-(1)-5] may apply to a UE supports a power class 1.5 for an E-UTRA FDD and NR TDD Inter-band EN-DC band combination listed in Table 43 with PC2 for E-UTRA and PC2 with Tx diversity for NR.

[1124] - PC2(26dBm) for E-UTRA and PC2(2x23dBm) with Tx diversity for NR.

[1125] 10-(1)-6. UE supporting a power class 1.5 for an EN-DC with NR Tx diversity (23dBm(E-UTRA TDD)+2x26dBm(NR TDD))

[1126] The requirements in clause [9-(1)-6] may apply to a UE supports a power class 1.5 for an E-UTRA TDD and NR TDD Inter-band EN-DC band combination listed in Table 43 with PC3 for E-UTRA and PC1.5 with Tx diversity for NR.

[1127] - PC3(23dBm) for E-UTRA and PC1.5(2x26dBm) with Tx diversity for NR.

[1128] 10-(1)-7. UE supporting a power class 1.5 for an EN-DC with NR Tx diversity (26dBm(E-UTRA TDD)+2x26dBm(NR TDD))

[1129] The requirements in clause [9-(1)-7] may apply to a UE supports a power class 1.5 for an E-UTRA TDD and NR TDD Inter-band EN-DC band combination listed in Table 43 with PC2 for E-UTRA and PC1.5 with Tx diversity for NR.

[1130] - PC2(26dBm) for E-UTRA and PC1.5(2x26dBm) with Tx diversity for NR.

[1131] 10-(2) Inter-band EN-DC including PC1.5 with NR Tx diversity: Configured transmitted power

[1132] For inter-band EN-DC with NR Tx diverity in one of the two frequency bands, the requirements in [8-(2)] apply except that:

[1133] - PPowerClass,EN-DCis the maximum UE power specified in Table 43 without taking into account the tolerance;

[1134] - If the NR component carrier is configured with Tx diversity, the MPRc and A-MPRc are specified in clause 6.2G.2 and clause 6.2G.3 of [TS 38.101-1 V17.12.0] respectively.

[1135] - ΔPPowerClass,CA:

[1136] -- For a power class 2 capable UE, it is 3dB when the requirements of default power class are applied as specified in [10-(1)], otherwise ΔPPowerClass, CA= 0 dB;

[1137] -- For a power class 1.5 capable UE, it is 6dB when the requirements of default power class are applied as specified in [10-(1)]; and it is 3dB when the requirements of power class 2 are applied as specified in [10-(1)]; otherwise ΔPPowerClass, CA= 0 dB;

[1138] 10-(3)Inter-band EN-DC including PC1.5 with NR Tx diversity: Behaviour of UE configured transmitted power

[1139] FIG. 7 may be applied to this clause.

[1140] FIG. 7 may be applied for a behavior of UE configured transmission power for supporting inter band EN-DC with NR Tx diversity including PC1.5 and the requirements to be tested.

[1141] FIG. 7 may be applied for behavior of UE configured transmission power for inter-band EN-DC with NR Tx diversity.

[1142] Here, PH may be Power Headroom.

[1143] The following drawings are created to explain specific embodiments of the present disclosure. The names of the specific devices or the names of the specific signals / messages / fields shown in the drawings are provided by way of example, and thus the technical features of the present disclosure are not limited to the specific names used in the following drawings.

[1144] FIG. 8 is a flow chart showing an example of a procedure of a UE according to the present disclosure.

[1145] 1. The UE may transmit, to a base station, UE capability.

[1146] The UE capability may include UE power class of the UE.

[1147] The UE capability may include DC1 and DC2.

[1148] The DC1 and the DC2 may indicate the maxUplinkDutyCycle capability of NR band corresponding to different LTE reference configurations.

[1149] 2. The UE may receive, from the base station, Y and Z.

[1150] The Y may be percentage of maximum E-UTRA (Evolved Universal Terrestrial Radio Access) uplink transmission during evaluation period.

[1151] The Z may be percentage of maximum NR (New Radio) uplink transmission during evaluation period.

[1152] 3. The UE may determine power class for EN-DC (E-UTRA NR - Dual Connectivity), based on the UE power class, power for the E-UTRA, duplex method for the E-UTRA, power for the NR, duplex method for the NR, the DC1, the DC2, the Y and the Z.

[1153] The EN-DC may be dual connectivity for the E-UTRA and the NR.

[1154] 4. The UE may determine a configured transmitted power for transmission via the EN-DC, based on the power class for the EN-DC.

[1155] the determined power class for the EN-DC may be power class 2, based on i) the UE power class being power class 2, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being TDD (Time Division Duplex), iv) the power for the NR being 23 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 70 and vii) the Z being less than or equal to the DC1,

[1156] The determined power class for the EN-DC may be power class 3, based on i) the UE power class being power class 2, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being TDD, iv) the power for the NR being 23 dBm, v) the duplex method for the NR being TDD, , vi) the Y being greater than or equal to 70 and vii) the Z being greater than the DC1.

[1157] The determined power class for the EN-DC may be power class 2, based on i) the UE power class being power class 2, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being FDD (Frequency Division Duplex), iv) the power for the NR being 26 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 70 and vii) the Z being less than or equal to the DC1,

[1158] The determined power class for the EN-DC may be power class 3, based on i) the UE power class being power class 2, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 26 dBm, v) the duplex method for the NR being TDD, , vi) the Y being greater than or equal to 70 and vii) the Z being greater than the DC1.

[1159] The determined power class for the EN-DC may be power class 2, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 23 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 35 and vii) the Z being less than or equal to the DC1,

[1160] The determined power class for the EN-DC may be power class 3, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 23 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 35 and vii) the Z being greater than the DC1.

[1161] The determined power class for the EN-DC may be power class 2, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 26 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 25 or the DC2 being less than or equal to 25, vii) the Y being greater than or equal to 35, viii) the Z being less than or equal to the DC1,

[1162] The determined power class for the EN-DC may be power class 3, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 26 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 25 or the DC2 being less than or equal to 25, vii) the Y being greater than or equal to 35 and viii) the Z being greater than the DC1.

[1163] The determined power class for the EN-DC may be power class 2, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 29 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 12.5 or the DC2 being less than or equal to 12.5, vii) the Y being greater than or equal to 70, viii) the Z being less than or equal to the DC1,

[1164] The determined power class for the EN-DC may be power class 3, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 29 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 12.5 or the DC2 being less than or equal to 12.5, vii) the Y being greater than or equal to 70 and viii) the Z being greater than the DC1.

[1165] The determined power class for the EN-DC may be power class 2, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 29 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 12.5 or the DC2 being less than or equal to 12.5, vii) the Y being greater than or equal to 35, viii) the Z being less than or equal to the DC1.

[1166] The determined power class for the EN-DC may be power class 3, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 29 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 12.5 or the DC2 being less than or equal to 12.5, vii) the Y being greater than or equal to 35 and viii) the Z being greater than the DC1.

[1167] The UE may transmit, to the base station, uplink signal via the EN-DC with the configured transmitted power.

[1168] Hereinafter, an apparatus in mobile communication, according to some embodiments of the present disclosure, will be described.

[1169] For example, an apparatus may include a processor, a transceiver, and a memory.

[1170] For example, the processor may be configured to be coupled operably with the memory and the processor.

[1171] The processor may be configured to: transmitting, by a UE (User Equipment) to a base station, UE capability; wherein the UE capability includes UE power class of the UE, wherein the UE capability includes DC1 and DC2, wherein the DC1 and the DC2 indicate the maxUplinkDutyCycle capability of NR band corresponding to different LTE reference configurations, receiving, by the UE from the base station, Y and Z; wherein the Y is percentage of maximum E-UTRA (Evolved Universal Terrestrial Radio Access) uplink transmission during evaluation period, wherein the Z is percentage of maximum NR (New Radio) uplink transmission during evaluation period, determining, by the UE, power class for EN-DC (E-UTRA NR - Dual Connectivity), based on the UE power class, power for the E-UTRA, duplex method for the E-UTRA, power for the NR, duplex method for the NR, the DC1, the DC2, the Y and the Z, wherein the EN-DC is dual connectivity for the E-UTRA and the NR, determining, by the UE, a configured transmitted power for transmission via the EN-DC, based on the power class for the EN-DC.

[1172] Hereinafter, a processor in mobile communication, according to some embodiments of the present disclosure, will be described.

[1173] The processor may be configured to: transmitting, by a UE (User Equipment) to a base station, UE capability; wherein the UE capability includes UE power class of the UE, wherein the UE capability includes DC1 and DC2, wherein the DC1 and the DC2 indicate the maxUplinkDutyCycle capability of NR band corresponding to different LTE reference configurations, receiving, by the UE from the base station, Y and Z; wherein the Y is percentage of maximum E-UTRA (Evolved Universal Terrestrial Radio Access) uplink transmission during evaluation period, wherein the Z is percentage of maximum NR (New Radio) uplink transmission during evaluation period, determining, by the UE, power class for EN-DC (E-UTRA NR - Dual Connectivity), based on the UE power class, power for the E-UTRA, duplex method for the E-UTRA, power for the NR, duplex method for the NR, the DC1, the DC2, the Y and the Z, wherein the EN-DC is dual connectivity for the E-UTRA and the NR, determining, by the UE, a configured transmitted power for transmission via the EN-DC, based on the power class for the EN-DC.

[1174] Hereinafter, a non-transitory computer-readable medium has stored thereon a plurality of instructions in a wireless communication system, according to some embodiments of the present disclosure, will be described.

[1175] According to some embodiment of the present disclosure, the technical features of the present disclosure could be embodied directly in hardware, in a software executed by a processor, or in a combination of the two. For example, a method performed by a wireless device in a wireless communication may be implemented in hardware, software, firmware, or any combination thereof. For example, a software may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other storage medium.

[1176] Some example of storage medium is coupled to the processor such that the processor can read information from the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. For other example, the processor and the storage medium may reside as discrete components.

[1177] The computer-readable medium may include a tangible and non-transitory computer-readable storage medium.

[1178] For example, non-transitory computer-readable media may include random access memory (RAM) such as synchronous dynamic random access memory (SDRAM), read-only memory (ROM), non-volatile random access memory (NVRAM), electrically erasable programmable read-only memory (EEPROM), FLASH memory, magnetic or optical data storage media, or any other medium that can be used to store instructions or data structures. Non-transitory computer-readable media may also include combinations of the above.

[1179] In addition, the method described herein may be realized at least in part by a computer-readable communication medium that carries or communicates code in the form of instructions or data structures and that can be accessed, read, and / or executed by a computer.

[1180] According to some embodiment of the present disclosure, a non-transitory computer-readable medium has stored thereon a plurality of instructions. The stored a plurality of instructions may be executed by a processor of a UE.

[1181] The stored a plurality of instructions may cause the UE to: transmitting, by a UE (User Equipment) to a base station, UE capability; wherein the UE capability includes UE power class of the UE, wherein the UE capability includes DC1 and DC2, wherein the DC1 and the DC2 indicate the maxUplinkDutyCycle capability of NR band corresponding to different LTE reference configurations, receiving, by the UE from the base station, Y and Z; wherein the Y is percentage of maximum E-UTRA (Evolved Universal Terrestrial Radio Access) uplink transmission during evaluation period, wherein the Z is percentage of maximum NR (New Radio) uplink transmission during evaluation period, determining, by the UE, power class for EN-DC (E-UTRA NR - Dual Connectivity), based on the UE power class, power for the E-UTRA, duplex method for the E-UTRA, power for the NR, duplex method for the NR, the DC1, the DC2, the Y and the Z, wherein the EN-DC is dual connectivity for the E-UTRA and the NR, determining, by the UE, a configured transmitted power for transmission via the EN-DC, based on the power class for the EN-DC.

[1182] The present disclosure can have various advantageous effects.

[1183] For example, by performing disclosure of this specification, UE that meet RF performance standards can be used.

[1184] Effects obtained through specific examples of the present specification are not limited to the effects listed above. For example, there may be a variety of technical effects that a person having ordinary skill in the related art can understand or derive from this specification. Accordingly, the specific effects of the present disclosure are not limited to those explicitly described herein, but may include various effects that may be understood or derived from the technical features of the present disclosure.

[1185] Claims in the present disclosure can be combined in a various way. For instance, technical features in method claims of the present disclosure can be combined to be implemented or performed in an apparatus, and technical features in apparatus claims can be combined to be implemented or performed in a method. Further, technical features in method claim(s) and apparatus claim(s) can be combined to be implemented or performed in an apparatus. Further, technical features in method claim(s) and apparatus claim(s) can be combined to be implemented or performed in a method. Other implementations are within the scope of the following claims.

Claims

1.A method, comprising:transmitting, by a UE (User Equipment) to a base station, UE capability;wherein the UE capability includes UE power class of the UE,wherein the UE capability includes DC1 and DC2,wherein the DC1 and the DC2 indicate the maxUplinkDutyCycle capability of NR band corresponding to different LTE reference configurations,receiving, by the UE from the base station, Y and Z;wherein the Y is percentage of maximum E-UTRA (Evolved Universal Terrestrial Radio Access) uplink transmission during evaluation period,wherein the Z is percentage of maximum NR (New Radio) uplink transmission during evaluation period,determining, by the UE, power class for EN-DC (E-UTRA NR - Dual Connectivity), based on the UE power class, power for the E-UTRA, duplex method for the E-UTRA, power for the NR, duplex method for the NR, the DC1, the DC2, the Y and the Z,wherein the EN-DC is dual connectivity for the E-UTRA and the NR,determining, by the UE, a configured transmitted power for transmission via the EN-DC, based on the power class for the EN-DC.2.The method of claim 1,wherein the determined power class for the EN-DC is power class 2, based on i) the UE power class being power class 2, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being TDD (Time Division Duplex), iv) the power for the NR being 23 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 70 and vii) the Z being less than or equal to the DC1,wherein the determined power class for the EN-DC is power class 3, based on i) the UE power class being power class 2, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being TDD, iv) the power for the NR being 23 dBm, v) the duplex method for the NR being TDD, , vi) the Y being greater than or equal to 70 and vii) the Z being greater than the DC1.3.The method of claim 1,wherein the determined power class for the EN-DC is power class 2, based on i) the UE power class being power class 2, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being FDD(Frequency Division Duplex), iv) the power for the NR being 26 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 70 and vii) the Z being less than or equal to the DC1,wherein the determined power class for the EN-DC is power class 3, based on i) the UE power class being power class 2, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 26 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 70 and vii) the Z being greater than the DC1.4.The method of claim 1,wherein the determined power class for the EN-DC is power class 2, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 23 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 35 and vii) the Z being less than or equal to the DC1,wherein the determined power class for the EN-DC is power class 3, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 23 dBm, v) the duplex method for the NR being TDD, vi) the Y being greater than or equal to 35 and vii) the Z being greater than the DC1.5.The method of claim 1,wherein the determined power class for the EN-DC is power class 2, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 26 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 25 or the DC2 being less than or equal to 25, vii) the Y being greater than or equal to 35, viii) the Z being less than or equal to the DC1,wherein the determined power class for the EN-DC is power class 3, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 26 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 25 or the DC2 being less than or equal to 25, vii) the Y being greater than or equal to 35 and viii) the Z being greater than the DC1.6.The method of claim 1,wherein the determined power class for the EN-DC is power class 2, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 29 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 12.5 or the DC2 being less than or equal to 12.5, vii) the Y being greater than or equal to 70, viii) the Z being less than or equal to the DC1,wherein the determined power class for the EN-DC is power class 3, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 23 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 29 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 12.5 or the DC2 being less than or equal to 12.5, vii) the Y being greater than or equal to 70 and viii) the Z being greater than the DC1.7.The method of claim 1,wherein the determined power class for the EN-DC is power class 2, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 29 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 12.5 or the DC2 being less than or equal to 12.5, vii) the Y being greater than or equal to 35, viii) the Z being less than or equal to the DC1,wherein the determined power class for the EN-DC is power class 3, based on i) the UE power class being power class 1.5, ii) the power for the E-UTRA being 26 dBm, iii) the duplex method for the E-UTRA being FDD, iv) the power for the NR being 29 dBm, v) the duplex method for the NR being TDD, vi) the DC1 being less than or equal to 12.5 or the DC2 being less than or equal to 12.5, vii) the Y being greater than or equal to 35 and viii) the Z being greater than the DC1.8.The method of claim 1, further comprising:transmitting, by the UE to the base station, uplink signal via the EN-DC with the configured transmitted power.9.A UE (User Equipment) configured to operate in a wireless system, the UE comprising:at least one transceiver;at least one processor; andat least one memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, cause the at least one processor to perform operations,wherein operations performed based on the instructions being executed by the at least one processor comprises:transmitting, by a UE (User Equipment) to a base station, UE capability;wherein the UE capability includes UE power class of the UE,wherein the UE capability includes DC1 and DC2,wherein the DC1 and the DC2 indicate the maxUplinkDutyCycle capability of NR band corresponding to different LTE reference configurations,receiving, by the UE from the base station, Y and Z;wherein the Y is percentage of maximum E-UTRA (Evolved Universal Terrestrial Radio Access) uplink transmission during evaluation period,wherein the Z is percentage of maximum NR (New Radio) uplink transmission during evaluation period,determining, by the UE, power class for EN-DC (E-UTRA NR - Dual Connectivity), based on the UE power class, power for the E-UTRA, duplex method for the E-UTRA, power for the NR, duplex method for the NR, the DC1, the DC2, the Y and the Z,wherein the EN-DC is dual connectivity for the E-UTRA and the NR,determining, by the UE, a configured transmitted power for transmission via the EN-DC, based on the power class for the EN-DC.10.An apparatus in mobile communication, comprising:at least one processor; andat least one memory storing instructions and operably electrically connectable with the at least one processor,wherein, based on the instructions being operated by the at least one processor, the instructions perform operation that is a method of one of the claims 1 to 8.11.A non-volatile computer readable storage medium having recorded instructions,wherein the instructions, based on being executed by one or more processors, cause the one or more processors to perform operation that is a method of one of the claims 1 to 8.

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