WO2021153811A1

WO2021153811A1 - Electronic device for supporting dual connectivity, and method for controlling electronic device

Info

Publication number: WO2021153811A1
Application number: PCT/KR2020/001321
Authority: WO
Inventors: 이운철
Original assignee: 엘지전자 주식회사
Priority date: 2020-01-29
Filing date: 2020-01-29
Publication date: 2021-08-05

Abstract

The present invention relates to an electronic device, comprising: at least one first antenna that transmits and receives a first signal; at least one second antenna that transmits and receives a second signal; and a modem that, when connected to a first network and a second network at the same time, determines a maximum transmission power of the first signal and a maximum transmission power of the second signal on the basis of a ratio of maximum transmission powers according to the dual connectivity to the first network and the second network, updates, in each preset period, the maximum transmission powers of the first signal and the second signal according to a first path loss and a second path loss for the first signal and the second signal, and controls amplification gains of at least one first power amplifier connected to the first antenna and at least one second power amplifier connected to the second antenna according to the updated maximum transmission powers.

Description

Electronic device supporting dual connection and control method of the electronic device

The present invention relates to an electronic device that provides dual connectivity (DC) to heterogeneous networks according to different communication methods.

Recently, various electronic devices including mobile terminals can use services through 4G networks and 5G networks using not only Long Term Evolution (LTE) communication technology but also New Radio (5G) communication technology (NR).

As such, in the case of an electronic device that can support 4G and 5G communication at the same time, the Dual Connectivity (DC) function that connects to the 4G network and the 5G network simultaneously by connecting to the 4G network and secondarily to the 5G network can provide Here, the 4G network may mean a network in which signals (hereinafter, 4G signals) according to the 4G communication method are exchanged, and the 5G network may mean a network in which signals (hereinafter, 5G signals) according to the 5G communication method are exchanged. .

In this way, when simultaneously connected to a 4G network and a 5G network, one network becomes a master and the other network becomes a secondary (secondary). For example, if connected to a 4G network first, and a part of a bearer formed with a base station of the 4G network is allocated for 5G communication, the 4G network may become the master and the 5G network may become a secondary. In this case, the 4G base stations may be referred to as a Master Cell Group (MCG), and the 5G base stations may be referred to as a Secondary Cell Group (SCG). And when the electronic device is connected to the 4G network and the 5G network at the same time, the output to the 4G network (LTE signal transmission output) and the output to the 5G network (NR signal transmission output) are summed to calculate the transmission output of the electronic device. there is.

On the other hand, in current electronic devices, as the danger of electromagnetic waves to the human body is known, the maximum transmission power tends to be limited in order to reduce the harm of electromagnetic waves. To this end, the network connected to the electronic device provides the maximum transmission output, and the electronic device limits the transmission output of the PA (Power Amplifier) according to the maximum transmission output provided from the network, thereby reducing the amount of electromagnetic waves that can harm the human body. to prevent occurrence.

In this case, when the 4G network and the 5G network are double connected as described above, the transmission output of the LTE signal and the transmission output of the NR signal are summed to determine the transmission output of the electronic device. A transmission power according to another communication method may be determined according to a remaining transmission output excluding a transmission output according to a communication method of . In this case, the transmission power of the SCG may be determined according to the remaining transmission output excluding the transmission output to the MCG.

Meanwhile, when the transmission power required for communication with the MCG is equal to or greater than the currently set maximum transmission power maximum value, the signal transmission to the SCG may be restricted. And if there is no signal transmission to the SCG for a predetermined time or more, the SCG may terminate the communication connection with the electronic device. Then, there may be a problem that the electronic device is not connected to the 5G network even though the dual connection is established.

In order to solve the 5G network connection failure problem, the EPS (Equal Power Sharing) method has emerged. The EPS scheme is a scheme in which the maximum transmission power is equally distributed among the transmission powers to two networks. In this case, since the transmission power to the SCG is guaranteed, a case in which the connection to the 5G network fails due to insufficient remaining transmission power can be prevented.

However, in the case of the EPS method, the maximum transmit power to the MCG and the maximum transmit power to the SCG are set by equally dividing the maximum transmit power, so that the transmit power of a network that requires a larger transmit power becomes a smaller transmit power. There is a problem that the attenuation is greater than the network requiring

For example, in a state where the transmit power to the 4G network is 26 dBm and the maximum transmit power according to the dual connection is determined to be 26 dBm, according to the EPS method, the maximum transmit power values of the 4G network and the 5G network may be determined to be 23 dBm, respectively. . In this case, if the transmission power required in the 5G network is 23 dBm or less, the transmission output of the 4G network is greatly attenuated from 26 dBm to 23 dBm during dual connection, while the transmission output to the 5G network may not be attenuated.

Meanwhile, due to a difference in transmission power between the base station and the electronic device, communication coverage is generally determined according to the transmission power of the electronic device. In addition, the high required transmission power may mean that the propagation environment between the electronic device and the base station is poor. Therefore, if the transmission power of the electronic device is lower than the required transmission power, the connection between the base station and the electronic device may fail.

Therefore, if the transmission output to the 4G network is greatly attenuated as described above, the connection between the electronic device and the 4G network may fail. In this case, if the 4G network is the MCG, the connection with the master node fails, and as the connection with the master node fails, there is a problem that the connection to the SCG, that is, the 5G network, also fails.

An object of the present invention is to solve the above and other problems, by preventing abruptly lowering of the transmission output of a signal according to any one communication method during dual connection to a 4G network and a 5G network, thereby preventing the corresponding communication method An object of the present invention is to provide an electronic device capable of preventing a sudden deterioration in communication quality occurring in communication and a control method of the electronic device.

Another object of the present invention is the maximum transmission output of the power amplifier for amplifying a signal according to the 4G communication method according to the propagation environment of the electronic device and the power to amplify the signal according to the 5G communication method when double connection to the 4G network and the 5G network An electronic device capable of determining the maximum transmission output of an amplifier and a control method of the electronic device are provided.

An electronic device according to an embodiment of the present invention for achieving the above or other object, at least one first antenna for transmitting and receiving a first signal according to a first communication method, and transmits and receives a second signal according to a second communication method a plurality of antennas including at least one second antenna, a plurality of power amplifiers respectively connected to the plurality of antennas, and a first network according to the first communication method and a second network according to the second communication method When simultaneously connected to the , according to the ratio of the maximum transmit power according to the dual connection of the first and second networks to the maximum initial transmit power of the first signal and the maximum initial transmit power of the second signal, the Determine the maximum transmission power of the first signal and the maximum transmission power of the second signal, and measure and measure the first path loss for the first signal and the second path loss for the second signal every preset period; at least one connected to the first antenna according to the updated maximum transmit power of the first signal and the maximum transmit power of the second signal by reflecting the first and second path loss and a modem for controlling amplification gains of at least one second power amplifier connected to the first power amplifier and the second antenna.

In an embodiment, the modem determines the maximum transmission power of the first signal and the maximum transmission power of the second signal according to Equation 1 below.

[Equation 1]

here,

is the maximum transmit power of the first signal,

is the maximum transmit power of the second signal,

is the maximum initial transmit power of the first signal,

is the initial transmission output maximum value of the second signal and,

is the maximum transmission power according to the dual connection of the first network and the second network.

In an embodiment, when the first and second path loss are measured, the modem updates the determined maximum transmission power of the first signal and the maximum transmission power of the second signal according to Equation 2 below. do it with

[Equation 2]

here,

is the maximum transmit power of the updated first signal,

is the maximum transmit power of the updated second signal,

is the maximum transmit power of the first signal before update,

is the maximum transmit power of the second signal before the update,

is the first path loss,

is the second path loss,

is a constant proportional to the path loss ratio.

In an embodiment, the modem calculates a difference between the first signal strength reference value received from the first base station of the first network and the reception strength of the reference signal received from the first base station to calculate the first path loss and measuring the second path loss by calculating a difference between the second signal strength reference value received from the second base station of the second network and the reception strength of the reference signal received from the second base station. do.

In one embodiment, the modem, for a measurement report (Measurement Report) performed at regular intervals, the signal strength from a serving cell and a neighbor cell for each of the first and second signals and When measuring the quality, the first path loss and the second path loss are measured, and the preset period is a period in which the first path loss and the second path loss are measured.

In an embodiment, the maximum initial transmission power of the first signal and the maximum initial transmission output of the second signal correspond to a frequency band of a first base station of the first network connected to the electronic device, respectively. It is determined according to a power class and a power class corresponding to a frequency band of a second base station of the second network connected to the electronic device, and the maximum transmission power according to the dual connection is the frequency of the first base station It is characterized in that it is determined according to the power class corresponding to the combination of the band and the frequency band of the second base station.

In an embodiment, the maximum initial transmission power of the first signal is any one determined according to a power class supported by the first base station among at least one power class corresponding to the frequency band of the first base station. is determined according to a power class of , and the maximum initial transmission power of the second signal is determined according to a power class supported by the second base station among at least one power class corresponding to the frequency band of the second base station It is characterized in that it is determined according to any one power class.

In an embodiment, the modem obtains the maximum initial transmission power of the first signal from the base station of the first network in a state in which communication is connected to the first network, and the first and second networks simultaneously If connected, further acquiring the maximum initial transmission power of the second signal from the base station of the second network to obtain the maximum initial transmission output of the first signal and the maximum value of the initial transmission output of the second signal characterized.

In an embodiment, when the number of the first antennas is plural, the modem is configured such that a sum of transmit powers of signals transmitted from each of the plurality of first antennas is less than or equal to a maximum transmit power of the updated first signal. Controls the amplification gains of a plurality of first power amplifiers connected to each of a plurality of first antennas, and when there are a plurality of second antennas, the sum of transmission powers of signals transmitted from each of the plurality of second antennas is the updated It characterized in that the amplification gain of the plurality of second power amplifiers connected to each of the plurality of second antennas is controlled to be less than or equal to the maximum transmission output of the second signal.

In the method for controlling an electronic device according to an embodiment of the present invention for achieving the above or other object, when the electronic device is simultaneously connected to a first network according to a first communication method and a second network according to a second communication method , an initial transmission output maximum value of a first signal according to the first communication method and an initial transmission of a second signal according to the second communication method from a first base station of the first network and a second base station of the second network A first step of obtaining a maximum output value; a second step of obtaining a maximum transmission power according to dual connectivity based on a combination of a frequency band of the first base station and a frequency band of the second base station; Based on the maximum initial transmit power of the first signal and the maximum initial transmit power of the second signal, and the maximum transmit power according to the double connection, the maximum transmit power of the first signal and the maximum transmit power of the second signal a third step of determining, measuring a first path loss with respect to the first signal and a second path loss with respect to the second signal, and reflecting the measured first and second path loss to reflect the first signal a fourth step of updating the maximum transmit power of the second signal and the maximum transmit power of the second signal, and transmit the first signal based on the updated maximum transmit power of the first signal and the maximum transmit power of the second signal and a fifth step of controlling the amplification gain of the first power amplifier connected to the antenna and the amplification gain of the second power amplifier connected to the antenna for transmitting the second signal, respectively.

In an embodiment, the fourth step is a 4-1 step of measuring the strength of the first and second reference signals respectively received from the first base station of the first network and the second base station of the second network and a step 4-2 of calculating differences between first and second signal strength reference values received from the first and second base stations, respectively, and the measured strengths of the first and second reference signals; , step 4-3 of measuring the first and second path loss based on the calculated differences, and reflecting the measured first and second path loss, the maximum transmission power of the first signal and the second and a step 4-4 of updating the maximum transmission power of the signal.

In an embodiment, the fourth step is performed every preset period, and the preset period is a period in which the first path loss and the second path loss are measured.

In one embodiment, the period in which the first and second path loss is measured is a signal strength and quality measurement from a serving cell and a neighbor cell for each of the first and second signals. It is characterized in that it is a cycle in which a measurement report is reported.

According to an embodiment of the present invention, when an electronic device is dually connected to a 4G network and a 5G network, a 4G signal by reflecting the maximum transmission output value required in the 4G network and the maximum transmission output value required in the 5G network By determining the maximum transmit outputs of the power amplifier for amplifying the 5G signal and the power amplifier for amplifying the 5G signal, the amplification gain limit of the signal requiring more transmit power can be set higher.

In addition, the present invention updates the maximum transmission outputs of the power amplifier by further reflecting the path loss of the 4G signal and the path loss of the 5G signal measured at every preset period, thereby generating the maximum transmission outputs more suitable for the current propagation environment of the electronic device. By setting each power amplifier, there is an effect that it is possible to prevent deterioration of communication quality due to the double connection and lower the communication connection failure rate.

1A and 1B are conceptual views illustrating an interface between an electronic device and an external device or a server according to an embodiment of the present invention.

2A is a block diagram illustrating a detailed configuration of an electronic device according to an embodiment of the present invention.

2B to 2C are perspective views viewed from different directions of an electronic device related to an embodiment of the present invention.

3A is an exemplary diagram illustrating an example of a configuration in which a plurality of antennas of an electronic device related to the present invention can be disposed.

3B is a block diagram illustrating a configuration of a wireless communication unit of an electronic device related to the present invention operable in a plurality of wireless communication systems.

4A is a block diagram illustrating a combined structure in which a plurality of antennas and transceiver circuits are operable with a processor in an electronic device related to the present invention.

FIG. 4B is a block diagram illustrating a combined structure in which antennas and transceiver circuits are additionally operable with a processor in the configuration diagram of FIG. 4A .

5 is a conceptual diagram illustrating a framework structure related to an application program operating in an electronic device related to the present invention.

6A and 6B are structural diagrams for explaining the structure of a wireless communication system of an electronic device related to the present invention.

7A and 7B are conceptual diagrams for explaining the structure of a frame according to a 5G communication method (NR: New Radio).

8A and 8B are conceptual diagrams illustrating a time and frequency resource structure according to a 5G communication method.

9 is a conceptual diagram illustrating configurations in which an electronic device related to the present invention is interfaced with a plurality of base stations or network entities.

10 is a conceptual diagram for explaining a system structure in which an electronic device related to the present invention is connected to a plurality of different networks according to an NSA (Non Stand Alone) structure.

11 is a structural diagram illustrating a structure of a wireless communication unit in which a modem controls a transmission output of a PA according to a maximum transmission output value in an electronic device related to the present invention.

12 is a flowchart illustrating an operation process of determining the maximum transmission output for each power amplifier by reflecting the maximum transmission output values and path losses required in each network during dual connection in the electronic device related to the present invention.

13 is a flowchart illustrating a process of acquiring initial transmission output maximum values of signals according to different communication methods in an electronic device related to the present invention.

14A and 14B are exemplary diagrams illustrating power classes according to 4G and 5G frequency bands and power classes in dual connection according to a combination of 4G frequency band and 5G frequency band.

15A and 15B are exemplary views illustrating examples of maximum transmission outputs for each power amplifier that are differently determined according to a propagation environment of an electronic device according to the operation process of FIG. 12 .

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted. The suffixes "module" and "part" for the components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have a meaning or role distinct from each other by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprises" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Electronic devices described in this specification include mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation systems, and slate PCs. , tablet PCs, ultrabooks, wearable devices, for example, watch-type terminals (smartwatch), glass-type terminals (smart glass), HMD (head mounted display), etc. may be included. there is.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiment described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and a digital signage, except when applicable only to a mobile terminal. .

1A to 1B , FIG. 1A shows a configuration for explaining an electronic device according to an embodiment and an interface between the electronic device and an external device or a server. Meanwhile, FIG. 1B shows a detailed configuration in which an electronic device is interfaced with an external device or a server according to an exemplary embodiment.

Meanwhile, referring to FIGS. 2A to 2C , FIG. 2A shows a detailed configuration of the electronic device of FIG. 1A . Meanwhile, FIGS. 2B and 2C are conceptual views of an example of an electronic device related to the present invention viewed from different directions.

Referring to FIG. 1A , the electronic device 100 is configured to include a communication interface 110 , an input interface (or an input device) 120 , an output interface (or an output device) 150 , and a processor 180 . can be Here, the communication interface 110 may refer to the wireless communication module 110 . In addition, the electronic device 100 may be configured to further include a display 151 and a memory 170 . The components shown in FIG. 1A are not essential for implementing the electronic device, and thus the electronic device described herein may have more or fewer components than those listed above.

More specifically, the wireless communication module 110 among the components, between the electronic device 100 and the wireless communication system, between the electronic device 100 and another electronic device 100, or the electronic device 100 and the outside It may include one or more modules that enable wireless communication between servers. In addition, the wireless communication module 110 may include one or more modules for connecting the electronic device 100 to one or more networks. Here, the one or more networks may be, for example, a 4G communication network and a 5G communication network.

1A and 2A , the wireless communication module 110 includes at least one of a 4G wireless communication module 111 , a 5G wireless communication module 112 , a short-range communication module 113 , and a location information module 114 . may include. In this regard, the 4G wireless communication module 111 , the 5G wireless communication module 112 , the short-range communication module 113 , and the location information module 114 may be implemented with a baseband processor such as a modem. As an example, the 4G wireless communication module 111 , the 5G wireless communication module 112 , the short-range communication module 113 and the location information module 114 may include a transceiver circuit and a baseband processor operating in an IF band. can be implemented as Meanwhile, the RF module 1200 may be implemented as an RF transceiver circuit operating in an RF frequency band of each communication system. However, the present invention is not limited thereto, and the 4G wireless communication module 111 , the 5G wireless communication module 112 , the short-range communication module 113 and the location information module 114 may be interpreted to include each RF module.

The 4G wireless communication module 111 may transmit and receive a 4G signal with a 4G base station through a 4G mobile communication network. In this case, the 4G wireless communication module 111 may transmit one or more 4G transmission signals to the 4G base station. In addition, the 4G wireless communication module 111 may receive one or more 4G reception signals from the 4G base station. In this regard, Up-Link (UL) Multi-Input Multi-Output (MIMO) may be performed by a plurality of 4G transmission signals transmitted to the 4G base station. In addition, Down-Link (DL) Multi-Input Multi-Output (MIMO) may be performed by a plurality of 4G reception signals received from a 4G base station.

The 5G wireless communication module 112 may transmit and receive a 5G signal with a 5G base station through a 5G mobile communication network. Here, the 4G base station and the 5G base station may have a Non-Stand-Alone (NSA) structure. For example, the 4G base station and the 5G base station may be a co-located structure disposed at the same location in a cell. Alternatively, the 5G base station may be disposed in a stand-alone (SA) structure at a location separate from the 4G base station.

The 5G wireless communication module 112 may transmit and receive a 5G signal with a 5G base station through a 5G mobile communication network. In this case, the 5G wireless communication module 112 may transmit one or more 5G transmission signals to the 5G base station. In addition, the 5G wireless communication module 112 may receive one or more 5G reception signals from the 5G base station.

In this case, the 5G frequency band may use the same band as the 4G frequency band, and this may be referred to as LTE re-farming. Meanwhile, as the 5G frequency band, the Sub6 band, which is a band of 6 GHz or less, may be used.

On the other hand, a millimeter wave (mmWave) band may be used as a 5G frequency band to perform broadband high-speed communication. When a millimeter wave (mmWave) band is used, the electronic device 100 may perform beam forming for communication coverage expansion with a base station.

Meanwhile, regardless of the 5G frequency band, the 5G communication system may support a larger number of Multi-Input Multi-Output (MIMO) in order to improve transmission speed. In this regard, Up-Link (UL) MIMO may be performed by a plurality of 5G transmission signals transmitted to the 5G base station. In addition, Down-Link (DL) MIMO may be performed by a plurality of 5G reception signals received from a 5G base station.

Meanwhile, the wireless communication module 110 may be in a dual connectivity (DC) state with the 4G base station and the 5G base station through the 4G wireless communication module 111 and the 5G wireless communication module 112 . In this way, the dual connection with the 4G base station and the 5G base station may be referred to as EN-DC (EUTRAN NR DC). Here, EUTRAN is an Evolved Universal Telecommunication Radio Access Network, which means a 4G wireless communication system, and NR is New Radio, which means a 5G wireless communication system.

On the other hand, if the 4G base station and the 5G base station have a co-located structure, throughput improvement is possible through inter-CA (Carrier Aggregation). Therefore, the 4G base station and the 5G base station In the EN-DC state, the 4G reception signal and the 5G reception signal may be simultaneously received through the 4G wireless communication module 111 and the 5G wireless communication module 112 .

Short-range communication module 113 is for short-range communication, Bluetooth (Bluetooth), RFID (Radio Frequency Identification), infrared communication (Infrared Data Association; IrDA), UWB (Ultra Wideband), ZigBee, NFC ( Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology may be used to support short-distance communication. The short-distance communication module 114 is, between the electronic device 100 and the wireless communication system, between the electronic device 100 and the other electronic device 100, or the electronic device 100 through a wireless local area network (Wireless Area Networks). ) and another electronic device (100, or an external server) can support wireless communication between the network located. The local area network may be a local area network (Wireless Personal Area Networks).

Meanwhile, short-distance communication between electronic devices may be performed using the 4G wireless communication module 111 and the 5G wireless communication module 112 . In an embodiment, short-distance communication may be performed between electronic devices by a device-to-device (D2D) method without going through a base station.

On the other hand, for transmission speed improvement and communication system convergence (convergence), carrier aggregation (CA) using at least one of the 4G wireless communication module 111 and the 5G wireless communication module 112 and the Wi-Fi communication module 113 This can be done. In this regard, 4G + WiFi carrier aggregation (CA) may be performed using the 4G wireless communication module 111 and the Wi-Fi communication module 113 . Alternatively, 5G + WiFi carrier aggregation (CA) may be performed using the 5G wireless communication module 112 and the Wi-Fi communication module 113 .

The location information module 114 is a module for acquiring a location (or current location) of an electronic device, and a representative example thereof includes a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, if the electronic device utilizes a GPS module, the location of the electronic device may be obtained by using a signal transmitted from a GPS satellite. As another example, if the electronic device utilizes the Wi-Fi module, the location of the electronic device may be acquired based on information of the Wi-Fi module and a wireless access point (AP) that transmits or receives a wireless signal. If necessary, the location information module 114 may perform any function of the other modules of the wireless communication module 110 to obtain data on the location of the electronic device as a substitute or additionally. The location information module 114 is a module used to obtain the location (or current location) of the electronic device, and is not limited to a module that directly calculates or obtains the location of the electronic device.

Specifically, if the electronic device utilizes the 5G wireless communication module 112 , the location of the electronic device may be obtained based on the information of the 5G wireless communication module and the 5G base station that transmits or receives the wireless signal. In particular, since the 5G base station of the millimeter wave (mmWave) band is deployed in a small cell having a narrow coverage, it is advantageous to obtain the location of the electronic device.

The input device 120 may include a pen sensor 1200 , a key button 123 , a voice input module 124 , a touch panel 151a, and the like. Meanwhile, the input device 120 includes a camera module 121 or an image input unit for inputting an image signal, a microphone 152c for inputting an audio signal, or an audio input unit, and a user input unit (eg, a user input unit for receiving information from a user). For example, it may include a touch key, a push key (mechanical key, etc.). The voice data or image data collected by the input device 120 may be analyzed and processed as a user's control command.

The camera module 121 is a device capable of capturing still images and moving images, and according to an embodiment, one or more image sensors (eg, a front sensor or a rear sensor), a lens, an image signal processor (ISP), or a flash (eg, : LED or lamp, etc.).

The sensor module 140 may include one or more sensors for sensing at least one of information in the electronic device, surrounding environment information surrounding the electronic device, and user information. For example, the sensor module 140 may include a gesture sensor 340a, a gyro sensor 340b, a barometric pressure sensor 340c, a magnetic sensor 340d, an acceleration sensor 340e, a grip sensor 340f, and a proximity sensor 340g. ), color sensor (340h) (e.g. RGB (red, green, blue) sensor), biometric sensor (340i), temperature/humidity sensor (340j), illuminance sensor (340k), or UV (ultra violet) At least one of a sensor 340l, an optical sensor 340m, and a hall sensor 340n may be included. In addition, the sensor module 140 includes a fingerprint recognition sensor (finger scan sensor), an ultrasonic sensor (ultrasonic sensor), an optical sensor (for example, a camera (see 121)), a microphone (see 152c), a battery battery gauges, environmental sensors (eg barometers, hygrometers, thermometers, radiation sensors, thermal sensors, gas detection sensors, etc.), chemical sensors (eg electronic noses, healthcare sensors, biometric sensors, etc.) etc.) may be included. Meanwhile, the electronic device disclosed in the present specification may combine and utilize information sensed by at least two or more of these sensors.

The output interface 150 is for generating an output related to visual, auditory or tactile sense, and may include at least one of a display 151 , an audio module 152 , a haptip module 153 , and an indicator 154 .

In this regard, the display 151 may implement a touch screen by forming a layer structure with each other or integrally formed with the touch sensor. Such a touch screen may function as the user input unit 123 providing an input interface between the electronic device 100 and the user, and may provide an output interface between the electronic device 100 and the user. For example, the display 151 may be a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, or a micro electromechanical system (micro-electromechanical system). electro mechanical systems, MEMS) displays, or electronic paper displays. For example, the display 151 may display various contents (eg, text, image, video, icon, and/or symbol, etc.) to the user. The display 151 may include a touch screen, and may receive, for example, a touch input using an electronic pen or a part of the user's body, a gesture, a proximity, or a hovering input.

Meanwhile, the display 151 may include a touch panel 151a, a hologram device 151b, a projector 151c, and/or a control circuit for controlling them. In this regard, the panel may be implemented to be flexible, transparent, or wearable. The panel may include the touch panel 151a and one or more modules. The hologram device 151b may display a stereoscopic image in the air by using light interference. The projector 151c may display an image by projecting light onto the screen. The screen may be located inside or outside the electronic device 100 , for example.

The audio module 152 may be configured to interwork with the receiver 152a, the speaker 152b, and the microphone 152c. Meanwhile, the haptic module 153 may convert an electrical signal into mechanical vibration, and may generate vibration or a haptic effect (eg, pressure, texture) or the like. The electronic device includes, for example, a mobile TV support device (eg, GPU) capable of processing media data according to standards such as digital multimedia broadcasting (DMB), digital video broadcasting (DVB), or mediaFlow. may include Also, the indicator 154 may display a specific state of the electronic device 100 or a part thereof (eg, the processor 310 ), for example, a booting state, a message state, or a charging state.

The wired communication module 160 , which may be implemented as an interface unit, functions as a passage with various types of external devices connected to the electronic device 100 . The wired communication module 160 includes an HDMI 162 , a USB 162 , a connector/port 163 , an optical interface 164 , or a D-sub (D-subminiature) 165 . can do. In addition, the wired communication module 160 connects a device equipped with a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio I/O (Input/Output) port, a video I/O (Input/Output) port, and an earphone port. In response to the connection of the external device to the wired communication module 160 , the electronic device 100 may perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the electronic device 100 . The memory 170 may store a plurality of application programs (or applications) driven in the electronic device 100 , data for operation of the electronic device 100 , and commands. At least some of these application programs may be downloaded from an external server (eg, the first server 310 or the second server 320) through wireless communication. In addition, at least some of these application programs may exist on the electronic device 100 from the time of shipment for basic functions (eg, incoming calls, outgoing functions, message reception, and outgoing functions) of the electronic device 100 . Meanwhile, the application program may be stored in the memory 170 , installed on the electronic device 100 , and driven to perform an operation (or function) of the electronic device by the processor 180 .

In this regard, the first server 310 may be referred to as an authentication server, and the second server 320 may be referred to as a content server. The first server 310 and/or the second server 320 may interface with an electronic device through a base station. Meanwhile, a part of the second server 320 corresponding to the content server may be implemented as a mobile edge cloud (MEC, 330) in units of base stations. Accordingly, it is possible to implement a distributed network through the second server 320 implemented as a mobile edge cloud (MEC, 330) and to reduce content transmission delay.

Memory 170 may include volatile and/or non-volatile memory. Also, the memory 170 may include an internal memory 170a and an external memory 170b. The memory 170 may store, for example, commands or data related to at least one other component of the electronic device 100 . According to one embodiment, the memory 170 may store software and/or a program 240 . For example, the program 240 may include a kernel 171 , middleware 172 , an application programming interface (API) 173 , or an application program (or “application”) 174 , and the like. At least a portion of the kernel 171 , the middleware 172 , or the API 174 may be referred to as an operating system (OS).

The kernel 171 is a system used to execute operations or functions implemented in other programs (eg, middleware 172 , an application programming interface (API) 173 , or an application program 174 ). Resources (eg, bus, memory 170, processor 180, etc.) may be controlled or managed. In addition, the kernel 171 may provide an interface capable of controlling or managing system resources by accessing individual components of the electronic device 100 from the middleware 172 , the API 173 , or the application program 174 . can

The middleware 172 may play an intermediary role so that the API 173 or the application program 174 communicates with the kernel 171 to exchange data. Also, the middleware 172 may process one or more work requests received from the application program 247 according to priority. In an embodiment, the middleware 172 sets a priority for using system resources (eg, bus, memory 170, processor 180, etc.) of the electronic device 100 to at least one of the application programs 174 . Grants and can process one or more work requests. The API 173 is an interface for the application program 174 to control a function provided by the kernel 171 or the middleware 1723, for example, at least one for file control, window control, image processing, or text control. It can contain interfaces or functions (such as commands).

In addition to the operation related to the application program, the processor 180 generally controls the overall operation of the electronic device 100 . The processor 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the above-described components or by driving an application program stored in the memory 170 . In addition, the processor 180 may control at least some of the components described with reference to FIGS. 1A and 2A in order to drive an application program stored in the memory 170 . Furthermore, the processor 180 may operate by combining at least two or more of the components included in the electronic device 100 to drive the application program.

The processor 180 is one of a central processing unit (CPU), an application processor (AP), an image signal processor (ISP), a communication processor (CP), a low-power processor (eg, a sensor hub), or It may include more than that. For example, the processor 180 may execute an operation or data processing related to control and/or communication of at least one other component of the electronic device 100 .

The power supply unit 190 receives external power and internal power under the control of the processor 180 to supply power to each component included in the electronic device 100 . The power supply unit 190 includes a power management module 191 and a battery 192, and the battery 192 may be a built-in battery or a replaceable battery. The power management module 191 may include a power management integrated circuit (PMIC), a charger IC, or a battery or fuel gauge. The PMIC may have a wired and/or wireless charging method. The wireless charging method includes, for example, For example, it includes a magnetic resonance method, a magnetic induction method, an electromagnetic wave method, etc., and may further include an additional circuit for wireless charging, for example, a coil loop, a resonance circuit, or a rectifier. For example, the remaining amount of the battery 396, voltage, current, or temperature during charging may be measured, for example, the battery 192 may include a rechargeable battery and/or a solar cell.

Each of the external device 100a , the first server 310 , and the second server 320 may be the same or a different type of device (eg, an external device or a server) as the electronic device 100 . According to an embodiment, all or a part of the operations executed in the electronic device 100 are other one or a plurality of electronic devices (eg, the external device 100a, the first server 310, and the second server 320). can be executed in According to an embodiment, when the electronic device 100 needs to perform a function or service automatically or upon request, the electronic device 100 performs the function or service by itself instead of or in addition to it. At least some related functions may be requested from other devices (eg, the external device 100a, the first server 310, and the second server 320). Other electronic devices (eg, the external device 100a , the first server 310 , and the second server 320 ) may execute a requested function or an additional function, and transmit the result to the electronic device 201 . The electronic device 100 may provide a requested function or service by processing the received result as it is or additionally. For this purpose, for example, cloud computing, distributed computing, client-server computing, or mobile edge cloud (MEC) technology may be used.

At least some of the respective components may operate in cooperation with each other to implement an operation, control, or control method of an electronic device according to various embodiments described below. In addition, the operation, control, or control method of the electronic device may be implemented on the electronic device by driving at least one application program stored in the memory 170 .

1A and 1B , the wireless communication system may include an electronic device 100 , at least one external device 100a , a first server 310 , and a second server 320 . The electronic device 100 is functionally connected to at least one external device 100a, and may control contents or functions of the electronic device 100 based on information received from the at least one external device 100a. . According to an embodiment, the electronic device 100 may use the

servers

310 and 320 to perform authentication to determine whether the at least one external device 100 includes or generates information conforming to a predetermined rule. there is. In addition, the electronic device 100 may display content or control functions differently by controlling the electronic device 100 based on the authentication result. According to an embodiment, the electronic device 100 may be connected to at least one external device 100a through a wired or wireless communication interface to receive or transmit information. For example, the electronic device 100 and the at least one external device 100a may include near field communication (NFC), a charger (eg, universal serial bus (USB)-C), an ear jack, Information may be received or transmitted in a manner such as BT (bluetooth) or WiFi (wireless fidelity).

The electronic device 100 includes at least one of an external device authentication module 100-1, a content/function/policy information DB 100-2, an external device information DB 100-3, or a content DB 104. can do. The at least one external device 100a may be a device designed for various purposes, such as convenience of use of the electronic device 100, increase of aesthetic beauty, enhancement of usability, etc. . At least one external device 100a may or may not physically contact the electronic device 100 . According to an embodiment, the at least one external device 100a is functionally connected to the electronic device 100 using a wired/wireless communication module, and receives control information for controlling content or functions in the electronic device 100 . can be transmitted

According to an embodiment, the at least one external device 100a encrypts/decrypts one or more pieces of information included in the external device information, or stores it in a physical/virtual memory area that is not directly accessible from the outside. and may include an authentication module for management. According to an embodiment, the at least one external device 100a may communicate with the electronic device 100 or provide information through communication between external devices. According to an embodiment, at least one external device 100a may be functionally connected to the server 410 or 320 . In various embodiments, the at least one external device 100a includes a cover case, an NFC dongle, a vehicle charger, an earphone, an ear cap (eg, an accessory device mounted on a mobile phone audio connector), a thermometer, It may be a product of various types, such as an electronic pen, BT earphone, BT speaker, BT dongle, TV, refrigerator, WiFi dongle, etc.

In this regard, for example, the external device 100a such as a wireless charger may supply power to the electronic device 100 through a charging interface such as a coil. In this case, control information may be exchanged between the external device 100a and the electronic device 100 through in-band communication through a charging interface such as a coil. Meanwhile, control information may be exchanged between the external device 100a and the electronic device 100 through out-of-band communication such as Bluetooth or NFC.

Meanwhile, the first server 310 may include a server for a service related to the at least one external device 100a, a cloud device, or a hub device for controlling a service in a smart home environment. The first server 310 may include at least one of an external device authentication module 311 , a content/function/policy information DB 312 , an external device information DB 313 , and an electronic device/user DB 314 . . The first server 310 may be referred to as an authentication management server, an authentication server, or an authentication-related server. The second server 320 may include a server or a cloud device for providing a service or content, or a hub device for providing a service in a smart home environment. The second server 320 may include one or more of a content DB 321 , an external device specification information DB 322 , a content/function/policy information management module 323 , or a device/user authentication/management module 324 . can The second server 130 may be referred to as a content management server, a content server, or a content-related server.

Referring to FIGS. 2B and 2C , the disclosed electronic device 100 has a bar-shaped terminal body. However, the present invention is not limited thereto, and may be applied to various structures such as a watch type, a clip type, a glass type, or a folder type in which two or more bodies are coupled to be relatively movable, a flip type, a slide type, a swing type, a swivel type, etc. . While they will relate to a particular type of electronic device, descriptions relating to a particular type of electronic device may apply generally to other types of electronic device.

Here, the terminal body may be understood as a concept referring to the electronic device 100 as at least one aggregate.

The electronic device 100 includes a case (eg, a frame, a housing, a cover, etc.) forming an exterior. As shown, the electronic device 100 may include a front case 101 and a rear case 102 . Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102 . At least one middle case may be additionally disposed between the front case 101 and the rear case 102 .

A display 151 is disposed on the front surface of the terminal body to output information. As shown, the window 151a of the display 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101 .

In some cases, an electronic component may also be mounted on the rear case 102 . Electronic components that can be mounted on the rear case 102 include a removable battery, an identification module, a memory card, and the like. In this case, the rear cover 103 for covering the mounted electronic component may be detachably coupled to the rear case 102 . Accordingly, when the rear cover 103 is separated from the rear case 102 , the electronic components mounted on the rear case 102 are exposed to the outside. On the other hand, a portion of the side of the rear case 102 may be implemented to operate as a radiator (radiator).

As shown, when the rear cover 103 is coupled to the rear case 102, a portion of the side of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the combination. Meanwhile, the rear cover 103 may have an opening for exposing the camera 121b or the sound output unit 152b to the outside.

The electronic device 100 includes a display 151 , first and second

sound output units

152a and 152b , a proximity sensor 141 , an illuminance sensor 142 , a light output unit 154 , and first and second cameras. (121a, 121b), first and second operation units (123a, 123b), a microphone 122, a wired communication module 160, etc. may be provided.

The display 151 displays (outputs) information processed by the electronic device 100 . For example, the display 151 may display information on an execution screen of an application program driven in the electronic device 100 , or user interface (UI) and graphic user interface (GUI) information according to the information on the execution screen.

In addition, two or more displays 151 may exist depending on the implementation form of the electronic device 100 . In this case, in the electronic device 100 , a plurality of display units may be spaced apart or disposed integrally on one surface, or may be respectively disposed on different surfaces.

The display 151 may include a touch sensor for sensing a touch on the display 151 so as to receive a control command input by a touch method. Using this, when a touch is made on the display 151, the touch sensor detects the touch, and the processor 180 may generate a control command corresponding to the touch based thereon. The content input by the touch method may be letters or numbers, or menu items that can be instructed or designated in various modes.

As such, the display 151 may form a touch screen together with the touch sensor, and in this case, the touch screen may function as the user input unit 123 (refer to FIG. 1A ). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver that transmits a call sound to the user's ear, and the second sound output unit 152b is a loud speaker that outputs various alarm sounds or multimedia reproduction sounds. ) can be implemented in the form of

The light output unit 154 is configured to output light to notify the occurrence of an event. Examples of the event may include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and information reception through an application. When the user's event confirmation is detected, the processor 180 may control the light output unit 154 to end the light output.

The first camera 121a processes an image frame of a still image or a moving image obtained by an image sensor in a shooting mode or a video call mode. The processed image frame may be displayed on the display 151 and stored in the memory 170 .

The first and second manipulation units 123a and 123b are an example of the user input unit 123 operated to receive a command for controlling the operation of the electronic device 100, and may be collectively referred to as a manipulating portion. there is. The first and second operation units 123a and 123b may be adopted in any manner as long as they are operated in a tactile manner, such as by a touch, push, or scroll, while the user receives a tactile feeling. In addition, the first and second manipulation units 123a and 123b may be operated in a manner in which the user is operated without a tactile feeling through a proximity touch, a hovering touch, or the like.

Meanwhile, the electronic device 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the processor 180 may use fingerprint information detected through the fingerprint recognition sensor as an authentication means. The fingerprint recognition sensor may be embedded in the display 151 or the user input unit 123 .

The wired communication module 160 serves as a passage through which the electronic device 100 can be connected to an external device. For example, the wired communication module 160 includes a connection terminal for connection with another device (eg, earphone, external speaker), a port for short-range communication (eg, an infrared port (IrDA Port), a Bluetooth port ( Bluetooth Port), a wireless LAN port, etc.], or may be at least one of a power supply terminal for supplying power to the electronic device 100 . The wired communication module 160 may be implemented in the form of a socket accommodating an external card, such as a subscriber identification module (SIM), a user identity module (UIM), or a memory card for information storage.

A second camera 121b may be disposed on the rear side of the terminal body. In this case, the second camera 121b has a photographing direction substantially opposite to that of the first camera 121a. The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera may be referred to as an array camera. When the second camera 121b is configured as an array camera, images may be captured in various ways using a plurality of lenses, and images of better quality may be obtained. The flash 125 may be disposed adjacent to the second camera 121b. The flash 125 illuminates light toward the subject when the subject is photographed by the second camera 121b.

A second sound output unit 152b may be additionally disposed on the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a, and may be used to implement a speakerphone mode during a call. In addition, the microphone 152c is configured to receive a user's voice, other sounds, and the like. The microphone 152c may be provided at a plurality of locations and configured to receive stereo sound.

At least one antenna for wireless communication may be provided in the terminal body. The antenna may be built into the terminal body or formed in the case. Meanwhile, a plurality of antennas connected to the 4G wireless communication module 111 and the 5G wireless communication module 112 may be disposed on the side of the terminal. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103 , or a case including a conductive material may be configured to function as an antenna.

Meanwhile, a plurality of antennas disposed on the side of the terminal may be implemented in four or more to support MIMO. In addition, when the 5G wireless communication module 112 operates in a millimeter wave (mmWave) band, as each of the plurality of antennas is implemented as an array antenna, a plurality of array antennas may be disposed in the electronic device.

The terminal body is provided with a power supply unit 190 (refer to FIG. 1A ) for supplying power to the electronic device 100 . The power supply unit 190 may include a battery 191 that is built into the terminal body or is detachably configured from the outside of the terminal body.

Hereinafter, a multi-communication system structure according to an embodiment and an electronic device having the same, in particular, an antenna and an electronic device having the same in a heterogeneous radio system will be described with reference to the accompanying drawings. It is apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Meanwhile, detailed operations and functions of an electronic device having a plurality of antennas according to an embodiment provided with a 4G/5G wireless communication module as shown in FIG. 2A will be reviewed below.

In the 5G communication system according to an embodiment, the 5G frequency band may be a higher frequency band than the Sub6 band. For example, the 5G frequency band may be a millimeter wave band, but is not limited thereto and may be changed according to an application.

3A illustrates an example of a configuration in which a plurality of antennas of an electronic device may be disposed according to an embodiment. Referring to FIG. 3A , a plurality of antennas 1110a to 1110d may be disposed inside or on the front side of the electronic device 100 . In this regard, the plurality of antennas 1110a to 1110d may be implemented in a form printed on a carrier inside an electronic device or may be implemented in a system-on-a-chip (Soc) form together with an RFIC. Meanwhile, the plurality of antennas 1110a to 1110d may be disposed on the front side of the electronic device in addition to the inside of the electronic device. In this regard, the plurality of antennas 1110a to 1110d disposed on the front surface of the electronic device 100 may be implemented as transparent antennas built into the display.

Meanwhile, a plurality of antennas 1110S1 and 1110S2 may be disposed on the side of the electronic device 100 . In this regard, a 4G antenna is disposed on the side of the electronic device 100 in the form of a conductive member, a slot is formed in the conductive member region, and a plurality of antennas 1110a to 1110d are configured to radiate a 5G signal through the slot. can be In addition, antennas 1150B may be disposed on the rear surface of the electronic device 100 so that the 5G signal may be radiated to the rear surface.

Meanwhile, in the present invention, at least one signal may be transmitted or received through the plurality of antennas 1110S1 and 1110S2 on the side of the electronic device 100 . In addition, the present invention may transmit or receive at least one signal through the plurality of antennas 1110a to 1110d, 1150B, 1110S1 and 1110S2 on the front and/or side of the electronic device 100 . The electronic device may communicate with the base station through any one of the plurality of antennas 1110a to 1110d, 1150B, 1110S1 and 1110S2. Alternatively, the electronic device may perform multiple input/output (MIMO) communication with the base station through two or more antennas among the plurality of antennas 1110a to 1110d, 1150B, 1110S1, and 1110S2.

3B illustrates a configuration of a wireless communication unit of an electronic device operable in a plurality of wireless communication systems according to an embodiment. Referring to FIG. 3B , the electronic device includes a first power amplifier 210 , a second power amplifier 220 , and an RFIC 250 . In addition, the electronic device may further include a modem (Modem, 270) and an application processor (AP: Application Processor, 280). Here, the modem 270 and the application processor AP 280 are physically implemented on a single chip, and may be implemented in a logically and functionally separated form. However, the present invention is not limited thereto and may be implemented in the form of physically separated chips depending on the application.

On the other hand, the electronic device includes a plurality of low noise amplifiers (LNA: Low Noise Amplifiers, 261 to 264) in the receiver. Here, the first power amplifier 210 , the second power amplifier 220 , the RFIC 250 , and the plurality of low-noise amplifiers 261 to 264 are all operable in the first communication system and the second communication system. In this case, the first communication system and the second communication system may be a 4G communication system and a 5G communication system, respectively.

As shown in FIG. 2B , the RFIC 250 may be configured as a 4G/5G integrated type, but is not limited thereto and may be configured as a 4G/5G separate type according to an application. When the RFIC 250 is configured as a 4G/5G integrated type, it is advantageous in terms of synchronization between 4G/5G circuits, as well as the advantage that control signaling by the modem 270 can be simplified.

Meanwhile, when the RFIC 250 is configured as a 4G/5G separate type, it may be referred to as a 4G RFIC and a 5G RFIC, respectively. In particular, when the difference between the 5G band and the 4G band is large, such as when the 5G band is configured as a millimeter wave band, the RFIC 250 may be configured as a 4G/5G separate type. As such, when the RFIC 250 is configured as a 4G/5G separate type, there is an advantage that RF characteristics can be optimized for each of the 4G band and the 5G band.

Meanwhile, even when the RFIC 250 is configured as a 4G/5G separate type, the 4G RFIC and the 5G RFIC are logically and functionally separated, and it is also possible to be physically implemented on a single chip.

On the other hand, the application processor (AP, 280) is configured to control the operation of each component of the electronic device. Specifically, the application processor (AP) 280 may control the operation of each component of the electronic device through the modem 270 .

For example, the modem 270 may be controlled through a power management IC (PMIC) for low power operation of the electronic device. Accordingly, the modem 270 may operate the power circuits of the transmitter and the receiver in the low power mode through the RFIC 250 .

In this regard, when it is determined that the electronic device is in an idle mode, the application processor (AP) 280 may control the RFIC 250 through the modem 270 as follows. For example, if the electronic device is in an idle mode, the RFIC via the modem 270 so that at least one of the first and

second power amplifiers

210 and 220 is operated in the low power mode or turned off 250 can be controlled.

According to another embodiment, when the electronic device is in a low battery mode, the application processor (AP) 280 may control the modem 270 to provide wireless communication capable of low power communication. For example, when the electronic device is connected to a plurality of entities among a 4G base station, a 5G base station, and an access point, the application processor (AP) 280 may control the modem 270 to enable wireless communication with the lowest power. Accordingly, the application processor (AP) 280 may control the modem 270 and the RFIC 250 to perform short-range communication using only the short-range communication module 113 even at sacrificing some throughput.

According to another embodiment, when the remaining battery level of the electronic device is equal to or greater than a threshold, the modem 270 may be controlled to select an optimal wireless interface. For example, the application processor (AP) 280 may control the modem 270 to receive through both the 4G base station and the 5G base station according to the remaining battery level and available radio resource information. In this case, the application processor (AP) 280 may receive the remaining battery level information from the PMIC and the available radio resource information from the modem 270 . Accordingly, if the battery level and available radio resources are sufficient, the application processor (AP) 280 may control the modem 270 and the RFIC 250 to receive through both the 4G base station and the 5G base station.

Meanwhile, the multi-transceiving system of FIG. 3B may integrate the transmitter and receiver of each radio system into one transceiver. Accordingly, there is an advantage that a circuit part integrating two types of system signals in the RF front-end can be removed.

In addition, since the front-end components can be controlled by the integrated transceiver, the front-end components can be more efficiently integrated than when the transmission/reception system is separated for each communication system.

In addition, when each communication system is separated, it is impossible to control other communication systems as necessary, or efficient resource allocation is impossible because the system delay is increased. On the other hand, the multi-transmission/reception system as shown in FIG. 3B has the advantage that it is possible to control other communication systems as necessary, and the resulting system delay can be minimized, so that efficient resource allocation is possible.

Meanwhile, the first power amplifier 210 and the second power amplifier 220 may operate in at least one of the first and second communication systems. In this regard, when the 5G communication system operates in the 4G band or the Sub6 band, the first and

second power amplifiers

210 and 220 may operate in both the first and second communication systems.

On the other hand, when the 5G communication system operates in the millimeter wave (mmWave) band, one of the first and

second power amplifiers

210 and 220 operates in the 4G band, and the other operates in the millimeter wave band. there is.

Meanwhile, by integrating the transceiver and the receiving unit, two different wireless communication systems can be implemented with one antenna by using an antenna for both transmitting and receiving. In this case, 4x4 MIMO can be implemented using four antennas as shown in FIG. 3B. In this case, 4x4 DL MIMO may be performed through the downlink (DL).

Meanwhile, if the 5G band is the Sub6 band, the first to fourth antennas ANT1 to ANT4 may be configured to operate in both the 4G band and the 5G band. On the other hand, if the 5G band is a millimeter wave (mmWave) band, the first to fourth antennas ANT1 to ANT4 may be configured to operate in any one of the 4G band and the 5G band. In this case, if the 5G band is a millimeter wave (mmWave) band, each of a plurality of separate antennas may be configured as an array antenna in the millimeter wave band.

Meanwhile, 2x2 MIMO implementation is possible using two antennas connected to the first power amplifier 210 and the second power amplifier 220 among the four antennas. In this case, 2x2 UL MIMO (2 Tx) may be performed through the uplink (UL). Alternatively, it is not limited to 2x2 UL MIMO, and may be implemented with 1 Tx or 4 Tx. In this case, when the 5G communication system is implemented as 1 Tx, only one of the first and

second power amplifiers

210 and 220 may operate in the 5G band. On the other hand, when the 5G communication system is implemented as 4Tx, an additional power amplifier operating in the 5G band may be further provided. Alternatively, a transmission signal may be branched in each of one or two transmission paths, and the branched transmission signal may be connected to a plurality of antennas.

On the other hand, since a switch-type splitter or a power divider is built inside the RFIC corresponding to the RFIC 250, there is no need for a separate component to be disposed outside, thereby improving component mountability. can Specifically, it is possible to select the transmitter (TX) of two different communication systems by using a single pole double throw (SPDT) type switch inside the RFIC corresponding to the RFIC 250 .

In addition, the electronic device capable of operating in a plurality of wireless communication systems according to an embodiment may further include a duplexer 231 , a filter 232 , and a switch 233 .

The duplexer 231 is configured to mutually separate signals of a transmission band and a reception band. At this time, the signals of the transmission band transmitted through the first and

second power amplifiers

210 and 220 are applied to the antennas ANT1 and ANT4 through the first output port of the duplexer 231 . On the other hand, signals of the reception band received through the antennas ANT1 and ANT4 are received by the

low noise amplifiers

261 and 264 through the second output port of the duplexer 231 .

The filter 232 may be configured to pass a signal of a transmission band or a reception band and block a signal of the remaining band. In this case, the filter 232 may include a transmit filter connected to a first output port of the duplexer 231 and a receive filter connected to a second output port of the duplexer 231 . Alternatively, the filter 232 may be configured to pass only a signal of a transmission band or only a signal of a reception band according to the control signal.

The switch 233 is configured to transmit either only a transmit signal or a receive signal. In an embodiment of the present invention, the switch 233 may be configured in a single pole double throw (SPDT) type to separate a transmission signal and a reception signal in a time division multiplexing (TDD) method. In this case, the transmission signal and the reception signal are signals of the same frequency band, and accordingly, the duplexer 231 may be implemented in the form of a circulator.

On the other hand, in another embodiment of the present invention, the switch 233 is also applicable to a frequency division multiplexing (FDD: Time Division Duplex) scheme. In this case, the switch 233 may be configured in a double pole double throw (DPDT) type to connect or block a transmission signal and a reception signal, respectively. Meanwhile, since the transmission signal and the reception signal can be separated by the duplexer 231 , the switch 233 is not necessarily required.

On the other hand, the electronic device according to the embodiment may further include a modem 270 corresponding to the control unit. In this case, the RFIC 250 and the modem 270 may be referred to as a first controller (or first processor) and a second controller (second processor), respectively. Meanwhile, the RFIC 250 and the modem 270 may be implemented as physically separate circuits. Alternatively, the RFIC 250 and the modem 270 may be physically or logically divided into one circuit.

The modem 270 may control and process signals for transmission and reception of signals through different communication systems through the RFIC 250 . The modem 270 may be obtained through control information received from the 4G base station and/or the 5G base station. Here, the control information may be received through a physical downlink control channel (PDCCH), but is not limited thereto.

The modem 270 may control the RFIC 250 to transmit and/or receive signals via the first communication system and/or the second communication system in a specific time and frequency resource. Accordingly, the RFIC 250 may control transmission circuits including the first and

second power amplifiers

210 and 220 to transmit a 4G signal or a 5G signal in a specific time period. Also, the RFIC 250 may control receiving circuits including the first to fourth low noise amplifiers 261 to 264 to receive a 4G signal or a 5G signal in a specific time period.

Meanwhile, a detailed operation and function of an electronic device having a plurality of antennas according to an embodiment having a multiple transmission/reception system as shown in FIG. 3B will be reviewed below.

In the 5G communication system according to an embodiment, the 5G frequency band may be a Sub6 band. In this regard, FIG. 4A is a combined configuration diagram in which a plurality of antennas and transceiver circuits are operable with a processor according to an embodiment. FIG. 4B is a configuration diagram in which antennas and transceiver circuits are additionally operable with a processor in the configuration diagram of FIG. 4A .

Referring to FIGS. 4A and 4B , it may include a plurality of antennas ANT1 to ANT4 and front-end modules FEM1 to FEM7 operating in a 4G band and/or a 5G band. In this regard, a plurality of switches SW1 to SW6 may be disposed between the plurality of antennas ANT1 to ANT4 and the front end modules FEM1 to FEM7 .

Also, referring to FIGS. 4A and 4B , it may include a plurality of antennas ANT5 to ANT8 and front-end modules FEM8 to FEM11 operating in a 4G band and/or a 5G band. In this regard, a plurality of switches SW7 to SW10 may be disposed between the plurality of antennas ANT1 to ANT4 and the front end modules FEM8 to FEM11 .

On the other hand, a plurality of signals that may be branched through the plurality of antennas ANT1 to ANT8 may be transmitted to the input of the front end modules FEM1 to FEM11 or the plurality of switches SW1 to SW10 through one or more filters. there is.

As an example, the first antenna ANT1 may be configured to receive a signal in a 5G band. In this case, the first antenna ANT1 may be configured to receive the second signal of the second band B2 and the third signal of the third band B3 . Here, the second band B2 may be an n77 band, and the third band B3 may be an n79 band, but the limitation thereto may be changed according to an application. Meanwhile, the first antenna ANT1 may operate as a transmitting antenna in addition to a receiving antenna.

In this regard, the first switch SW1 may be configured as an SP2T switch or an SP3T switch. When implemented as an SP3T switch, one output port can be used as a test port. Meanwhile, the first and second output ports of the first switch SW1 may be connected to the input of the first front end module FEM1 .

As an example, the second antenna ANT2 may be configured to transmit and/or receive signals in a 4G band and/or a 5G band. In this case, the second antenna ANT2 may be configured to transmit/receive the first signal of the first band B1. Here, the first band B1 may be an n41 band, but the limitation thereto may be changed according to an application.

Meanwhile, the second antenna ANT2 may operate in the low band LB. In addition, the second antenna ANT2 may be configured to operate in a medium band (MB) and/or a high band (HB). Here, the middle band (MB) and the high band (HB) may be referred to as MHB.

A first output of the first filter bank FB1 connected to the second antenna ANT2 may be connected to the second switch SW2 . Meanwhile, the second output of the first filter bank FB1 connected to the second antenna ANT2 may be connected to the third switch SW3 . In addition, the third output of the first filter bank FB1 connected to the second antenna ANT2 may be connected to the fourth switch SW4 .

Accordingly, the output of the second switch SW2 may be connected to the input of the second front end module FEM2 operating in the LB band. Meanwhile, the second output of the third switch SW3 may be connected to the input of the third front end module FEM3 operating in the MHB band. Also, the first output of the third switch SW3 may be connected to the input of the fourth front end module FEM4 operating in the 5G first band B1 . In addition, the third output of the third switch SW3 may be connected to an input of the fifth front-end module FEM5 operating in the MHB band operating in the 5G first band B1.

In this regard, the first output of the fourth switch SW4 may be connected to the input of the third switch SW3 . Meanwhile, the second output of the fourth switch SW4 may be connected to the input of the third front end module FEM3 . Also, the third output of the fourth switch SW4 may be connected to the input of the fifth front end module FEM5 .

As an example, the third antenna ANT3 may be configured to transmit and/or receive signals in the LB band and/or the MHB band. In this regard, a first output of the second filter bank FB2 connected to the second antenna ANT2 may be connected to an input of the fifth front end module FEM5 operating in the MHB band. Meanwhile, the second output of the second filter bank FB2 connected to the second antenna ANT2 may be connected to the fifth switch SW5 .

In this regard, the output of the fifth switch SW5 may be connected to the input of the sixth front end module FEM6 operating in the LB band.

As an example, the fourth antenna ANT4 may be configured to transmit and/or receive a signal in a 5G band. In this regard, the fourth antenna ANT4 may be configured to perform frequency multiplexing (FDM) on the second band B2 as the transmission band and the third band B3 as the reception band. Here, the second band B2 may be an n77 band, and the third band B3 may be an n79 band, but the limitation thereto may be changed according to an application.

In this regard, the fourth antenna ANT4 may be connected to the sixth switch SW6 , and one output of the sixth switch SW6 may be connected to the receiving port of the seventh front end module FEM7 . Meanwhile, the other one of the outputs of the sixth switch SW6 may be connected to a transmission port of the seventh front end module FEM7 .

As an example, the fifth antenna ANT5 may be configured to transmit and/or receive signals in a WiFi band. In addition, the fifth antenna ANT5 may be configured to transmit and/or receive a signal in the MHB band.

In this regard, the fifth antenna ANT5 may be connected to the third filter bank FB3 , and the first output of the third filter bank FB3 may be connected to the first WiFi module WiFi FEM1 . Meanwhile, the second output of the third filter bank FB3 may be connected to the fourth filter bank FB5. In addition, the first output of the fourth filter bank (FB5) may be connected to the first WiFi module (WiFi FEM1). Meanwhile, the second output of the fourth filter bank FB5 may be connected to the eighth front-end module FEM8 operating in the MHB band through the seventh switch SW7 . Accordingly, the fifth antenna ANT5 may be configured to receive the WiFi band and 4G/5G band signals.

Similarly, the sixth antenna ANT6 may be configured to transmit and/or receive signals in a WiFi band. In addition, the sixth antenna ANT6 may be configured to transmit and/or receive a signal in the MHB band.

In this regard, the sixth antenna ANT6 may be connected to the fifth filter bank FB5 , and the first output of the fifth filter bank FB5 may be connected to the second WiFi module WiFi FEM2 . Meanwhile, a second output of the fifth filter bank FB5 may be connected to the sixth filter bank FB6 . In addition, the first output of the sixth filter bank (FB5) may be connected to the second WiFi module (WiFi FEM2). Meanwhile, the second output of the sixth filter bank FB5 may be connected to the ninth front-end module FEM9 operating in the MHB band through the eighth switch SW8. Accordingly, the sixth antenna ANT6 may be configured to receive the WiFi band and 4G/5G band signals.

3B, 4A, and 4B, the baseband processor, that is, the modem 270, performs multiple input/output (MIMO) or diversity in the MHB band. An antenna and transceiver circuit (RFIC) 250 ) can be controlled. In this regard, the adjacent second antenna ANT2 and the third antenna ANT3 may be used in the diversity mode for transmitting and/or receiving the same information as the first signal and the second signal. On the other hand, in the MIMO mode in which the first information is included in the first signal and the second information is included in the second signal, antennas disposed on different sides may be used. As an example, the baseband processor 1400 may perform MIMO through the second antenna ANT2 and the fifth antenna ANT5. As another example, the baseband processor, that is, the modem 270 may perform MIMO through the second antenna ANT2 and the sixth antenna ANT6 .

As an example, the seventh antenna ANT7 may be configured to receive a signal in a 5G band. In this case, the seventh antenna ANT7 may be configured to receive the second signal of the second band B2 and the third signal of the third band B3 . Here, the second band B2 may be an n77 band, and the third band B3 may be an n79 band, but the limitation thereto may be changed according to an application. Meanwhile, the seventh antenna ANT7 may operate as a transmit antenna in addition to a receive antenna.

In this regard, the ninth switch SW9 may be configured as an SP2T switch or an SP3T switch. When implemented as an SP3T switch, one output port can be used as a test port. Meanwhile, the first and second output ports of the ninth switch SW9 may be connected to an input of the tenth front end module FEM10 .

As an example, the eighth antenna ANT8 may be configured to transmit and/or receive signals in a 4G band and/or a 5G band. In this case, the eighth antenna ANT8 may be configured to transmit/receive a signal of the second band B2. Also, the eighth antenna ANT8 may be configured to transmit/receive a signal of the third band B2. Here, the second band B2 may be an n77 band, and the third band B3 may be an n79 band, but the limitation thereto may be changed according to an application. In this regard, the eighth antenna ANT8 may be connected to the eleventh front end module FEM11 through the tenth switch SW10.

Meanwhile, the plurality of antennas ANT1 to ANT8 may be connected to an impedance matching circuit MC1 to MC8 to operate in a plurality of bands. In this regard, when operating in adjacent bands such as the first antenna ANT1 , the fourth antenna ANT4 , the seventh antenna ANT7 , and the eighth antenna ANT8 , only one variable element may be used. In this case, the variable element may be a variable capacitor configured to change the capacitance by varying the voltage.

On the other hand, when the second antenna ANT2, the third antenna ANT3, the fifth antenna ANT5, and the sixth antenna ANT6 can operate in spaced bands, only two or more variable elements may be used. In this case, the two or more variable elements may be two or more variable capacitors or a combination of a variable inductor and a variable capacitor.

3B, 4A, and 4B , the baseband processor 270 may perform MIMO through at least one of a second band B2 and a third band B3 among 5G bands. In this regard, the baseband processor 270 may be configured to operate via two or more of the first antenna ANT1 , the fourth antenna ANT4 , the seventh antenna ANT7 , and the eighth antenna ANT8 in the second band B2 . MIMO can be performed. Meanwhile, the baseband processor 270 performs MIMO through at least two of the first antenna ANT1, the fourth antenna ANT4, the seventh antenna ANT7, and the eighth antenna ANT8 in the third band B3. can be done Accordingly, the baseband processor 270 may control the plurality of antennas and the transceiver circuit 250 to support MIMO up to 4RX as well as 2RX in the 5G band.

Meanwhile, an application program operating in an electronic device described in this specification may be driven in association with a user space, a kernel space, and hardware. In this regard, the program module 410 may include a kernel 420 , middleware 430 , an API 450 , a framework/library 460 , and/or an application 470 . At least a portion of the program module 410 may be pre-loaded on an electronic device or downloaded from an external device or a server.

The kernel 420 may include a system resource manager 421 and/or a device driver 423 . The system resource manager 421 may control, allocate, or recover system resources. According to an embodiment, the system resource manager 421 may include a process manager, a memory manager, or a file system manager. The device driver 423 may include a display driver, a camera driver, a Bluetooth driver, a shared memory driver, a USB driver, a keypad driver, a WiFi driver, an audio driver, or an inter-process communication (IPC) driver. The middleware 430 provides, for example, functions commonly required by the applications 470 or provides various functions through the API 460 so that the applications 470 can use limited system resources inside the electronic device. It may be provided as an application 470 .

The middleware 430 includes a runtime library 425 , an application manager 431 , a window manager 432 , a multimedia manager 433 , a resource manager 434 , a power manager 435 , a database manager 436 , a package manager ( 437 ), connectivity manager 438 , notification manager 439 , location manager 440 , graphic manager 441 , security manager 442 , content manager 443 , service manager 444 or an external device manager It may include at least one of (445).

The framework/library 450 may include a general-purpose framework/library 451 and a special-purpose framework/library 452 . Here, the general-purpose framework/library 451 and the special-purpose framework/library 452 may be referred to as a first framework/library 451 and a second framework/library 452 , respectively. The first framework/library 451 and the second framework/library 452 may interface with the kernel space and hardware through the first API 461 and the second API 462, respectively. Here, the second framework/library 452 may be an example software architecture that may modularize artificial intelligence (AI) functions. Using the architecture, various processing blocks of hardware implemented as a System on Chip (SoC) (eg, CPU 422, DSP 424, GPU 426, and/or NPU 428) to support operations during runtime operation of the application 470 .

Application 470 may include, for example, home 471 , dialer 472 , SMS/MMS 473 , instant message (IM) 474 , browser 475 , camera 476 , alarm 477 . , Contact (478), Voice Dial (479), Email (480), Calendar (481), Media Player (482), Album (483), Watch (484), Payment (485), Accessory Management (486) ), health care, or environmental information providing applications.

The AI application may be configured to call functions defined in user space that may provide detection and recognition of a scene indicating the location in which the electronic device is currently operating. The AI application may configure the microphone and camera differently depending on whether the recognized scene is an indoor space or an outdoor space. The AI application may make a request for compiled program code associated with a library defined in the Scene Detect application programming interface (API) to provide an estimate of the current scene. Such a request may rely on the output of a deep neural network configured to provide scene estimates based on video and positioning data.

The framework/library 462 , which may be compiled code of the Runtime Framework, may be further accessible by the AI application. The AI application may cause the runtime framework engine to request a scene estimate at specific time intervals, or triggered by an event detected by the application's user interface. When estimating a scene, the runtime engine may then send a signal to an operating system such as a Linux Kernel running on the SoC. The operating system may cause the operation to be performed on the CPU 422 , DSP 424 , GPU 426 , NPU 428 , or some combination thereof. The CPU 422 may be accessed directly by the operating system, and other processing blocks may be accessed through a driver, such as the DSP 424 , the GPU 426 , or the driver 414 - 418 for the NPU 428 . may be In the illustrative example, deep neural networks and AI algorithms may be configured to run on a combination of processing blocks, such as CPU 422 and GPU 426 , or AI algorithms, such as deep neural networks, may be configured to run on NPU 428 . may be executed.

The AI algorithm performed through the special-purpose framework/library as described above may be performed only by an electronic device or may be performed by a server supported scheme. When the AI algorithm is performed by the server support method, the electronic device may receive and transmit information related to the AI server and AI processing through the 4G/5G communication system.

Referring to FIG. 6A , a Next Generation Radio Access Network (NG-RAN) 600 is a Random Access (NG-RA) user plane (new sublayer/PDCP/RLC/MAC/PHY) and a control plane for User Equipment (UE). (RRC) consists of gNBs 310 that provide protocol termination.

The gNBs 610 are interconnected via an Xn interface 612 . The gNB 610 is also connected to a Next Generation Core (NGC) 620 through an NG interface. More specifically, the gNB 610 is connected to an Access and Mobility Management Function (AMF) 631 through an N2 interface and a User Plane Function (UPF) 632 through an N3 interface.

Meanwhile, the NG-C interface 621 may mean a control plane interface between the NG-RAN 600 and the NGC 620 . In addition, the NG-U interface 622 may mean a user plane interface between the NG-RAN 600 and the NGC 620 .

In more detail, in the control plane, interface management and error handling (eg setting, reset, component removal, update), connected mode and mobility management (handover procedure, sequence number and state management, terminal context recovery), RAN paging support , functions related to dual connectivity (addition, reset, and release modification of secondary nodes) may be performed. Meanwhile, functions related to data transfer or data flow control may be performed in the user plane.

Meanwhile, referring to the above, a wireless communication system including an electronic device and a base station (gNB) illustrated in FIG. 6A will be described as follows. In this regard, FIG. 6B illustrates a block diagram of a wireless communication system to which the methods proposed in the present specification can be applied.

Referring to FIG. 6B , the wireless communication system includes a first communication device 650 and/or a second communication device 660 . 'A and/or B' may be interpreted as having the same meaning as 'including at least one of A or B'. The first communication device may represent the base station and the second communication device may represent the terminal (or the first communication device may represent the terminal and the second communication device may represent the base station).

Base station (BS) is a fixed station (fixed station), Node B, evolved-NodeB (eNB), gNB (Next Generation NodeB), BTS (base transceiver system), access point (AP: Access Point), gNB (general) NB), 5G system, network, AI system, RSU (road side unit), may be replaced by terms such as robot.

In addition, the terminal (Terminal) may be fixed or have mobility, UE (User Equipment), MS (Mobile Station), UT (user terminal), MSS (Mobile Subscriber Station), SS (Subscriber Station), AMS (Advanced Mobile) Station), WT (Wireless terminal), MTC (Machine-Type Communication) device, M2M (Machine-to-Machine) device, D2D (Device-to-Device) device, vehicle, robot, AI module may be replaced by terms such as

The first communication device 650 and the second communication device 660 are a processor (processor, 651, 661), memory (memory, 654, 664), one or more Tx / Rx RF module (radio frequency module, 655, 665) , including

Tx processors

652 and 662 ,

Rx processors

653 and 663 , and

antennas

656 and 666 . The processors 651 and 661 implement the above salpin functions, processes and/or methods and the functions, processes and/or methods to be described later. More specifically, in the DL (communication from the first communication device 650 to the second communication device 660 ), a higher layer packet from the core network (NGC) is provided to the processor 651 . The processor 651 implements the function of the L2 layer. In the DL, the processor 651 provides multiplexing between logical channels and transport channels, radio resource allocation, to the second communication device 660 , and is responsible for signaling to the second communication device 660 .

A transmit (TX) processor 652 implements various signal processing functions for the L1 layer (ie, the physical layer). The signal processing function facilitates forward error correction (FEC) in the second communication device 660 and includes coding and interleaving. The coded and modulated symbols are divided into parallel streams, each stream mapped to OFDM subcarriers, multiplexed with a reference signal (RS) in the time and/or frequency domain, and using Inverse Fast Fourier Transform (IFFT) are combined together to create a physical channel carrying a stream of time domain OFDMA symbols.

The OFDM stream is spatially precoded to generate multiple spatial streams. Each spatial stream may be provided to a different antenna 656 via a separate Tx/Rx module (or transceiver, 655 ). Each Tx/Rx module may modulate an RF carrier with a respective spatial stream for transmission.

In the second communication device 660 , each Tx/Rx module (or transceiver, 665 ) receives a signal via a respective antenna 666 of each Tx/Rx module 665 . Each Tx/Rx module 665 recovers information modulated with an RF carrier and provides it to a receive (RX) processor 663 . The RX processor 663 implements various signal processing functions of layer 1. The RX processor 663 may perform spatial processing on the information to recover any spatial streams destined for the second communication device 660 . If multiple spatial streams are directed to the second communication device 660 , they may be combined into a single OFDMA symbol stream by multiple RX processors 663 . The RX processor 663 transforms the OFDMA symbol stream from the time domain to the frequency domain using a Fast Fourier Transform (FFT).

The frequency domain signal includes a separate OFDMA symbol stream for each subcarrier of the OFDM signal. The symbols and reference signal on each subcarrier are recovered and demodulated by determining the most probable signal placement points transmitted by the first communication device. These soft decisions may be based on channel estimate values. The soft decisions are decoded and deinterleaved to recover the data and control signal originally transmitted by the first communication device 650 on the physical channel. Corresponding data and control signals are provided to processor 661 .

The UL (second communication device 660 to first communication device 650 communication) is handled in the first communication device 650 in a manner similar to that described with respect to the receiver function in the second communication device 660 . . Each Tx/Rx module 665 receives a signal via a respective antenna 666 . Each Tx/Rx module 665 provides an RF carrier and information to the RX processor 663 . The processor 661 may be associated with a memory 664 that stores program code and data. Memory 664 may be referred to as a computer-readable medium.

Meanwhile, referring to the above drawings, a 5G wireless communication system, that is, 5G new radio access technology (NR) may be provided. In this regard, as more and more communication devices require a larger communication capacity, there is a need for improved mobile broadband communication compared to the existing radio access technology. In addition, massive MTC (Machine Type Communications), which provides various services anytime, anywhere by connecting multiple devices and objects, is also one of the major issues to be considered in next-generation communication. In addition, communication system design considering reliability and latency sensitive service/terminal is being discussed. As described above, the introduction of next-generation radio access technology considering eMBB (enhanced mobile broadband communication), Mmtc (massive MTC), URLLC (Ultra-Reliable and Low Latency Communication), etc. is being discussed, and in this specification, the technology is referred to as NR for convenience. . NR is an expression showing an example of 5G radio access technology (RAT).

A new RAT system including NR uses an OFDM transmission scheme or a similar transmission scheme. The new RAT system may follow OFDM parameters different from those of LTE. Alternatively, the new RAT system may follow the existing numerology of LTE/LTE-A, but may have a larger system bandwidth (eg, 100 MHz). Alternatively, one cell may support a plurality of numerologies. That is, electronic devices operating with different numerology can coexist in one cell.

In this regard, in the case of 4G LTE, since the maximum bandwidth of the system is limited to 20 MHz, a single sub-carrier spacing (SCS) of 15 KHz is used. However, in the case of 5G NR, since a channel bandwidth of 5 MHz to 400 MHz is supported, FFT processing complexity may increase to process the entire bandwidth through one subcarrier interval. Accordingly, the subcarrier interval used for each frequency band may be extended and applied.

Numerology corresponds to one subcarrier spacing in the frequency domain. By scaling the reference subcarrier spacing by an integer N, different numerology can be defined. In this regard, Fig. 4A shows an example of a frame structure in NR. Meanwhile, FIG. 4B shows a change in slot length according to a change in subcarrier spacing in NR.

An NR system can support multiple numerologies. Here, the numerology may be defined by a subcarrier spacing and a cyclic prefix (CP) overhead. In this case, a plurality of subcarrier spacings may be derived by scaling the basic subcarrier spacing by an integer N (or, ). Also, although it is assumed that very low subcarrier spacing is not used at very high carrier frequencies, the numerology used can be selected independently of the frequency band. In addition, in the NR system, various frame structures according to a number of numerologies may be supported.

Hereinafter, an Orthogonal Frequency Division Multiplexing (OFDM) numerology and frame structure that can be considered in an NR system will be described. A plurality of OFDM numerologies supported in the NR system may be defined as shown in Table 1 below.

		Cyclic prefix(CP)Cyclic prefix (CP)
00	1515	NormalNormal
1One	3030	Normal Normal
22	6060	Normal, ExtendedNormal, Extended
33	120120	Normal Normal
44	240240	NormalNormal

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

The NR frequency band is defined as a frequency range of two types (FR1, FR2). FR1 is the sub 6GHz range, and FR2 is the above 6GHz range, which may mean a millimeter wave (mmW).

Table 2 below shows the definition of the NR frequency band.

Frequency RangedesignationFrequency Rangedesignation	Corresponding frequencyrangeCorresponding frequencyrange	Subcarrier Spacing Subcarrier Spacing

FR1FR1	450 MHz - 6000 MHz450 MHz - 6000 MHz	15, 30, 60 KHz15, 30, 60 KHz
FR2FR2	24250 MHz - 52600 MHz24250 MHz - 52600 MHz	60, 120, 240 KHz60, 120, 240 KHz

With respect to the frame structure in the NR system, the sizes of various fields in the time domain are expressed as multiples of a specific time unit. 7A is an example of SCS of 60 kHz, and one subframe may include four slots. One subframe = {1,2,4} slots shown in FIG. 7A is an example, and the number of slot(s) that may be included in one subframe may be one, two, or four.

Also, a mini-slot may contain 2, 4 or 7 symbols, or may contain more or fewer symbols.

Referring to FIG. 7B , the subcarrier interval of 5G NR phase I and the OFDM symbol length accordingly are shown. Each subcarrier interval is extended by a power of 2, and the symbol length is reduced in inverse proportion to this. In FR1, subcarrier spacings of 15 kHz, 30 kHz and 60 kHz are available depending on the frequency band/bandwidth. In FR2, 60 kHz and 120 kHz can be used for the data channel, and 240 kHz can be used for the synchronization signal.

In 5G NR, a basic unit of scheduling is defined as a slot, and the number of OFDM symbols included in one slot may be limited to 14 as shown in FIG. 7A or 7B regardless of subcarrier spacing. Referring to FIG. 7B , when a wide subcarrier interval is used, the length of one slot is shortened in inverse proportion to reduce transmission delay in a radio section. In addition, in order to efficiently support ultra reliable low latency communication (uRLLC), scheduling in units of minislots (eg, 2, 4, 7 symbols) may be supported as described above in addition to scheduling in units of slots.

Considering the above-described technical features, the slots in 5G NR described herein may be provided at the same interval as the slots of 4G LTE or may be provided as slots of various sizes. As an example, the slot interval in 5G NR may be configured as 0.5 ms, which is the same as the slot interval of 4G LTE. As another example, the slot interval in 5G NR may be configured as 0.25 ms, which is a narrower interval than the slot interval of 4G LTE.

In this regard, the 4G communication system and the 5G communication system may be referred to as a first communication system and a second communication system, respectively. Thus, the first signal (first information) of the first communication system may be a signal (information) in a 5G NR frame with a slot interval scalable to 0.25 ms, 0.5 ms, or the like. On the other hand, the second signal (second information) of the second communication system may be a signal (information) in a 4G LTE frame with a fixed slot interval of 0.5 ms.

Meanwhile, the first signal of the first communication system may be transmitted and/or received through a maximum bandwidth of 20 MHz. On the other hand, the second signal of the second communication system may be transmitted and/or received through a variable channel bandwidth from 5 MHz to 400 MHz. In this regard, the first signal of the first communication system may be FFT-processed with a single sub-carrier spacing (SCS) of 15 KHz.

On the other hand, the second signal of the second communication system may be FFT-processed at subcarrier intervals of 15 kHz, 30 kHz, and 60 kHz according to the frequency band/bandwidth. In this case, the second signal of the second communication system may be modulated and frequency-converted to the FR1 band and transmitted through the 5G Sub6 antenna. Meanwhile, the FR1 band signal received through the 5G Sub6 antenna may be frequency-converted and demodulated. Thereafter, the second signal of the second communication system may be IFFT-processed at subcarrier intervals of 15 kHz, 30 kHz, and 60 kHz according to the frequency band/bandwidth.

Meanwhile, the second signal of the second communication system may be FFT-processed at subcarrier intervals of 60 kHz, 120 kHz, and 240 kHz according to frequency band/bandwidth and data/synchronization channel. In this case, the second signal of the second communication system may be modulated to the FR2 band and transmitted through the 5G mmWave antenna. On the other hand, the FR2 band signal received through the 5G mmWave antenna can be frequency-converted and demodulated. Thereafter, the second signal of the second communication system may be IFFT-processed through subcarrier intervals of 60 kHz, 120 kHz, and 240 kHz according to frequency band/bandwidth and data/synchronization channel.

In 5G NR, symbol-level temporal alignment can be used for transmission schemes using various slot lengths, mini-slots, and different subcarrier spacings. Accordingly, it provides flexibility for efficiently multiplexing various communication services such as enhancement mobile broadband (eMBB) and ultra reliable low latency communication (uRLLC) in the time domain and frequency domain. Also, unlike 4G LTE, 5G NR may define uplink/downlink resource allocation at a symbol level within one slot as shown in FIG. 3B . In order to reduce hybrid automatic repeat request (HARQ) delay, a slot structure capable of transmitting HARQ ACK/NACK directly within a transmission slot may be defined. Such a slot structure may be referred to as a self-contained structure.

Unlike 4G LTE, 5G NR can support a common frame structure constituting an FDD or TDD frame through a combination of various slots. Accordingly, the transmission direction of an individual cell can be freely and dynamically adjusted according to traffic characteristics by introducing a dynamic TDD scheme.

Meanwhile, the resource structure of the time domain and the frequency domain may define an NR resource grid as shown in FIG. 8A . According to a subcarrier spacing (SubCarrier Spacing: SCS), the resource grid may be changed as the number of available subcarriers and OFDM symbols varies. That is, in relation to each numerology and carrier, NR is a value obtained by multiplying the maximum number of resource blocks per subcarrier interval by the number of subcarriers per resource block, and a value determined by the number of OFDM symbols per subframe as the length. A resource grid can be defined.

In addition, to support agile and efficient use of TDD resources, NR may implement a flexible slot structure. As an example, as shown in (a) and (b) of FIG. 8B , all slots may be allocated as DL (DownLink) and all UL (UploadLink) slots. Alternatively, a mixture of DL and UL may be used to allocate service asymmetric traffic. DL control occurs at the beginning of the slot, UL control may occur at the end, statically configure the mixed DL/UL slot as in LTE DL/UL TDD configuration or dynamically change the allocation of DL/UL mix can Thus, efficiency and scheduling can be improved depending on traffic requirements.

Meanwhile, the electronic device 100 described herein may maintain a connection state with a 4G base station (eNB) and a 5G base station (eNB) through the 4G wireless communication module 111 and/or the 5G wireless communication module 112 . . In this regard, as described above, FIG. 9 shows a configuration in which the electronic device 100 is interfaced with a plurality of base stations or network entities according to an embodiment.

Referring to FIG. 9 , 4G/5G deployment options are shown. In relation to 4G/5G deployment, when multi-RAT of 4G LTE and 5G NR is supported and in non-standalone (NSA) mode, it can be implemented as EN-DC of option 3 or NGEN-DC of option 5. On the other hand, if multi-RAT is supported and in standalone (SA) mode, it may be implemented as NE-DC of option 4. In addition, when single RAT is supported and in standalone (SA) mode, it may be implemented as NR-DC of option 2.

Regarding the base station type, the eNB is a 4G base station, also called an LTE eNB, and is based on the Rel-8 - Rel-14 standard. On the other hand, ng-eNB is an eNB capable of interworking with 5GC and gNB, also called eLTE eNB, and is based on the Rel-15 standard. In addition, gNB is a 5G base station interworking with 5G NR and 5GC, also called NR gNB, and is based on the Rel-15 standard. In addition, en-gNB is a gNB capable of interworking with EPC and eNB, also called NR gNB, and is based on the Rel-15 standard. Regarding the Dual Connectivity (DC) type, option 3 indicates E-UTRA-NR Dual Connectivity (EN-DC). On the other hand, option 7 represents NG-RAN E-UTRA-NR Dual Connectivity (NGEN-DC). Also, option 4 indicates NR-E-UTRA Dual Connectivity (NE-DC). Also, option 2 indicates NR-NR Dual Connectivity (NR-DC). In this regard, the technical characteristics of the dual connection according to option 2 to option 7 are as follows.

- Option 2: Independent 5G service can be provided only with 5G system (5GC, gNB). In addition to eMBB (enhanced Mobile Broadband), URLLC (Ultra-Reliable Low-Latency Communication) and mMTC (Massive Machine Type Communication) communication are possible, and 5GC characteristics such as network slicing, MEC support, Mobility on demand, and Access-agnostic can be used. 5G full service can be provided. Initially, due to coverage limitations, it can be used as a hot spot, enterprise, or overlay network. In case of out of 5G NR coverage, EPC-5GC interworking is required. 5G NR full coverage may be provided, and dual connectivity (NR-DC) between gNBs may be supported using multiple 5G frequencies.

- Option 3: When only gNB is introduced into the existing LTE infrastructure. The core is the EPC and the gNB is the en-gNB capable of interworking with the EPC and the eNB. Dual connectivity (EN-DC) is supported between the eNB and the en-gNB, and the master node is the eNB. The eNB, which is the control anchor of the en-gNB, processes control signaling for network access, connection establishment, handover, etc. of the UE, and user traffic may be delivered through the eNB and/or en-gNB. This option is mainly applied in the first stage of 5G migration as operators operating nationwide LTE networks can quickly establish 5G networks without 5GC without introducing en-gNB and minimal LTE upgrades.

There are 3 types of Option 3, Option 3/3a/3x depending on the user traffic split method. Bearer split is applied to Option 3/3x and Option 3a is not applied. The main method is Option 3x.

- Option 3: Only the eNB is connected to the EPC and the en-gNB is only connected to the eNB. User traffic is split in the master node (eNB) and can be transmitted simultaneously to LTE and NR.

- Option 3a: Both the eNB and the gNB are connected to the EPC, and user traffic is delivered directly from the EPC to the gNB. User traffic is transmitted in LTE or NR.

- Option 3x: Option 3 and Option 3a are combined. The difference from Option 3 is that user traffic is split at the secondary node (gNB).

The advantages of Option 3 are i) that LTE can be used as a capacity booster for eMBB service, and ii) that the terminal is always connected to LTE, so even if it goes out of 5G coverage or the NR quality is deteriorated, service continuity is provided through LTE and stable Communication may be provided.

- Option 4: 5GC is introduced and it is still linked with LTE, but independent 5G communication is possible. The core is 5GC and the eNB is an ng-eNB capable of interworking with 5GC and gNB. Dual connectivity (NE-DC) is supported between the ng-eNB and the gNB, and the master node is the gNB. When 5G NR coverage is sufficiently expanded, LTE can be used as a capacity booster. There are 2 types of Option 4/4a. The main method is Option 4a.

- Option 7: 5GC is introduced and still works with LTE, so 5G communication depends on LTE. The core is 5GC and the eNB is an ng-eNB capable of interworking with 5GC and gNB. Dual connectivity (NGEN-DC) is supported between ng-eNB and gNB, and the master node is the eNB. 5GC characteristics can be used, and service continuity can still be provided with the eNB as the master node, as in Option 3, when 5G coverage is not yet sufficient. There are 3 types of Option 7, Option 7/7a/7x, depending on the user traffic split method. Bearer split is applied to Option 7/7x and Option 7a is not applied. The main method is Option 7x.

Meanwhile, according to the NSA structure according to the MRDC (Multi RAT (Radio Access Technology) Dual Connectivity), the electronic device may be connected to a network according to a plurality of different communication methods at the same time, and may receive data from the connected networks. FIG. 10 shows an E-UTRA New Radio Dual Connectivity (EN-DC) structure as such an NSA structure in more detail.

Referring to FIG. 10 , the electronic device 100 may be simultaneously connected to the eNB 1000 serving as a master node and the en-gNB 1010 serving as a secondary node.

Here, the eNB 1000 may create an S1-MME control connection with the MME, which is a control entity of the EPC, which is the core of the LTE system. In addition, transmission and reception of NAS control messages can be relayed between the MME and the electronic device through the S1-MME control connection. In addition, an RRC connection can be created with an electronic device using LTE Radio technology, and an RRC state can be managed based on the connection.

Meanwhile, the en-gNB 1010 may be involved only in an additional data connection for transmitting/receiving data of a predetermined size or more, without being involved in the control connection and NAS message relay related to the EPC.

Meanwhile, for a DC (Dual Connectivity) connection, the electronic device 100 may first attach to the EPC through the eNB 1000 . In addition, a Packet Data Network (PDN) connection and bearers may be created. And when the PDN connection and the bearer are created, the electronic device may be in an RRC-connected state with the eNB 1000 .

Then, the master node, the eNB 1000 , the current congestion state of the eNB 1000 , the data transmission/reception status of the electronic device 100 , and the en-gNB that will serve as a secondary node around the eNB 1000 . DC use of the electronic device may be determined in consideration of the existence of the 1010 and the congestion state of the en-gNB 1010 .

And when DC use is determined, the eNB 1000 may transmit/receive an X2-C control message to and from the en-gNB 1010 through the X2 interface. In addition, through the exchange of control messages, a procedure of allowing some of the bearers that service data transmission/reception to the electronic device 100 to be serviced through the en-gNB 1010 with the LTE radio resource controlled by the eNB 1000 may be executed.

Therefore, some of the bearers that service data transmission and reception to the electronic device 100 as LTE radio resources are transferred to the en-gNB 1010, and the electronic device 100 is transferred to the en-gNB 1010 through some of the transferred bearers. Data can be transmitted/received using an NR radio resource controlled by . Accordingly, the electronic device may be connected to both the eNB 1000 and the en-gNB 1010 to transmit/receive data through both LTE, that is, 4G radio resource and NR, that is, 5G radio resource.

On the other hand, the modem 270 of the electronic device 100 according to an embodiment of the present invention transmits the transmission signal input from the RFIC 250 when the maximum transmission output value is determined based on at least one currently connected network. The amplification gain of the at least one

PA

210 , 220 may be controlled to be amplified to an output equal to or less than the maximum transmission output value.

As shown in FIGS. 3B and 11 , the wireless communication unit of the electronic device 100 according to an embodiment of the present invention may include a plurality of antennas and power amplifiers connected to each of the plurality of antennas. Here, the plurality of antennas may transmit/receive both a 4G signal and a 5G signal, and may each be connected to a power amplifier.

Meanwhile, the plurality of antennas may transmit/receive signals according to a specific communication method when the electronic device 100 is connected to only one network. On the other hand, when the electronic device 100 is simultaneously connected (dually connected) to different networks according to different communication methods, some of the plurality of antennas transmit and receive signals according to the first communication method, and another of the plurality of antennas transmits and receives signals according to the first communication method. Some may transmit/receive a signal according to the second communication method.

In this case, power amplifiers connected to antennas for transmitting and receiving signals according to the first communication method may amplify the signal according to the first communication method according to a first amplification gain set by the modem 270 . In addition, power amplifiers connected to antennas for transmitting and receiving signals according to the second communication method may amplify the signal according to the second communication method according to a second amplification gain set by the modem 270 . Here, the first amplification gain and the second amplification gain may be different from each other.

Here, the first communication method may mean a 4G communication method. Also, the second communication method may mean a 5G communication method. Accordingly, the first network may mean a 4G network, and the base station of the first network may mean a 4G base station. In addition, the second network may mean a 5G network, and the base station of the second network may mean a 5G base station.

On the other hand, although the 2T4R structure is illustrated in FIG. 11A for simplicity of explanation, the present invention is not limited to this structure, and more power amplifiers or a larger number of communication systems may be provided depending on the application. However, hereinafter, for convenience of description, it is assumed that multiplex transmission is performed with two power amplifiers.

Referring to FIG. 11 , the modem 270 may include a 5G communication module 360 capable of operating in a 5G communication system and a 4G communication module 350 operating in a 4G communication system. In addition, the 4G communication module 350 and the modem 270 may be physically separated or may be implemented in a physically separated structure on a single chip.

Meanwhile, the modem 270 and the 4G communication module 350 may be electrically connected. In addition, the 4G communication module 350 may perform modulation/demodulation for transmission or reception of a 4G signal under the control of the modem 270 .

First, the modem 270 may be connected to a 4G base station of a 4G network, and may transmit a signal (4G signal) according to a 4G communication method to the 4G network or receive the 4G signal from the 4G network through the 4G base station. there is.

Then, a power class of the 4G signal may be determined based on the frequency band used by the 4G base station, and the maximum initial transmission power of the 4G signal may be determined according to the determined power class. Then, the modem 270 may control at least one of the first PA and the

second PA

210 and 220 according to the determined maximum initial transmission power of the 4G signal. In this case, the modem 270 allows the 4G signal input to at least one of the first PA and the

second PA

210 and 220 to be amplified to an output less than or equal to the determined initial transmission output maximum value of the 4G signal, or the first PA and controlling the amplification gains of the first and

second PAs

210 and 220 so that the sum of the transmission powers of the 4G signals output through the

second PAs

210 and 220 is equal to or less than the maximum initial transmission output of the 4G signals. can do.

On the other hand, the modem 270 is a 4G communication module 350 and 5G so as to receive data through both the 4G base station and the 5G base station according to the operation state detection result of the electronic device 100 detected by the application processor (AP, 280). The communication module 360 may be controlled. In this case, the modem 270 may activate the 5G communication module 360 while the 4G communication module 350 is activated.

The activated 5G communication module 360 may search for a 5G base station (cell) satisfying a preset condition from around the electronic device 100 . In addition, the searched 5G base station may be added (5G Cell ADD) and wireless communication may be performed to provide a service through the 5G network. Therefore, the electronic device 100 may operate in a Non Stand Alone (NSA) method that can be connected to both a 4G network and a 5G network (DC, Dual Connectivity).

In this way, when simultaneously connected to the 4G network and the 5G network (dual connection), the modem 270 may control the first PA and the

second PA

210 and 220 to amplify signals according to different communication methods, respectively. Hereinafter, it is assumed that the first PA 210 amplifies a signal according to the 4G communication method and the second PA 220 amplifies a signal according to the 5G communication method.

When connected to the 5G base station through the dual connection as described above, the modem 270 may determine the maximum transmission power according to the dual connection based on a power class corresponding to a combination of the frequency band of the 4G base station and the frequency band of the 5G base station.

Meanwhile, in the case of a typical electronic device, when the maximum transmission power according to the double connection is determined, the maximum transmission output value of the signal according to the 4G communication method and the maximum transmission output value of the signal according to the 5G communication method are determined according to the EPS method. . Accordingly, by equally dividing the determined maximum transmission power according to the double connection, it is possible to determine the maximum transmission output value of each signal. Therefore, when the maximum initial transmission power of the 4G signal and the maximum initial transmission power of the 5G signal are different from each other, the maximum transmission power of the signal corresponding to the maximum initial transmission power having a higher value may be more attenuated. Accordingly, since the maximum transmission power of a signal for a network requiring a higher transmission power is more attenuated, a probability of a connection failure to the corresponding network may increase and a sudden deterioration of communication quality may occur.

On the other hand, the modem 270 of the electronic device 100 according to an embodiment of the present invention may further determine the maximum initial transmission power of the 5G signal based on the power class corresponding to the frequency band of the connected 5G base station. And determine the maximum transmission power according to the dual connection determined according to the combination of the frequency band of the 4G base station and the frequency band of the 5G base station, based on the maximum initial transmission power of the 4G signal and the maximum value of the initial transmission output of the 5G signal Thus, it is possible to determine the maximum transmit power of the 4G signal and the maximum transmit power of the 5G signal. In this case, the maximum transmission power of the 4G signal and the maximum transmission output of the 5G signal may be determined differently by reflecting a difference between the maximum initial 4G transmission output and the maximum initial 5G transmission output.

And the modem 270 controls the amplification gain of the power amplifier (eg, the first PA 210) for amplifying the 4G signal according to the determined maximum transmission output of the 4G signal, and according to the determined maximum transmission output of the 5G signal, the It is possible to control the amplification gain of the power amplifier (eg, the second PA 220) for amplifying the 5G signal.

Meanwhile, when the maximum transmission power of the 4G signal and the maximum transmission power of the 5G signal are determined, the modem 270 may measure the pathloss of the 4G network and the pathloss of the 5G network according to a preset period. For example, the path loss may mean an output loss that occurs while a signal transmitted from a base station is transmitted to an electronic device. For example, as the propagation environment between the electronic device 100 and the base station is good, the path loss may decrease, and as the propagation environment between the electronic device 100 and the base station deteriorates, the path loss may increase.

Meanwhile, the path loss may be calculated according to the difference between the signal strength reference value (eg, P0 nominal power) received from the base station and the reception strength of the reference signal (RS: Reference Signal) received from the base station. This path loss may be measured when measuring signal strength and quality from a serving cell and a neighbor cell for a measurement report performed every preset period.

Meanwhile, when the path loss of the 4G network and the path loss of the 5G network are measured, the modem 270 reflects the measured path loss to the determined maximum transmission power of the 4G signal and the maximum transmission output of the 5G signal, and the determined The maximum transmit power of 4G signals and the maximum transmit power of 5G signals can be updated.

Accordingly, the electronic device 100 according to an embodiment of the present invention provides a maximum transmission output of a 4G signal and a 5G signal according to the current propagation environment of the electronic device 100 within the limit of the maximum transmission output determined according to the double connection. By allowing the maximum transmission power of , to be flexibly changed, it is possible to minimize transmission power attenuation due to double connection, as well as connection failure and communication quality degradation due to path loss.

Meanwhile, in the following description, specific operations and functions of the electronic device 100 according to the embodiment of the present invention described with reference to FIG. 11 will be described with reference to a plurality of flowcharts.

12 is a flowchart illustrating an operation process of determining the maximum transmit power for each power amplifier by reflecting the maximum transmit power values and path losses required in each network during dual connection in the electronic device 100 related to the present invention. am.

In the following description, a first base station means a base station of a first network according to a first communication method, and the first network is before double connection is made, that is, the electronic device 100 is connected to one network. state, it may mean a network to which the electronic device 100 is connected. For example, when the electronic device 100 is connected only to a 4G network, the first network may be a 4G network, and when the electronic device 100 is connected only to a 5G network, the first network may be a 5G network .

Also, in the following description, a second base station may mean a base station of a second network according to the second communication method. The second network refers to a network different from the first network in which the electronic device 100 is connected while being connected to the first network through a double connection, and according to a communication method different from the communication method of the first network It may be a network in which signals are exchanged. That is, when the electronic device 100 is connected to a 5G network through a double connection while being connected to a 4G network, the 5G network may be the second network. Alternatively, when the electronic device 100 is connected to a 4G network through a double connection while being connected to a 5G network, the 4G network may be the second network.

Referring to FIG. 12 , when the modem 270 of the electronic device 100 according to an embodiment of the present invention is connected to the first network, the first signal according to the power class determined according to the frequency band of the first base station It is possible to obtain the maximum value of the initial transmission power. And when the electronic device 100 is connected to the second network while being connected to the first network (dual connection), the second signal initial transmission output maximum value according to the power class determined according to the frequency band of the second base station can be obtained (S1200). Alternatively, when dual connectivity is established, the modem 270 detects the frequency band of the first base station and the frequency band of the second base station, and initially transmits the first signal based on power classes corresponding to the detected frequency bands. An output maximum value and the second signal initial transmission output maximum value may be obtained.

Meanwhile, when both the maximum value of the first signal initial transmission output and the maximum value of the second signal initial transmission output are obtained through step S1200, the modem 270 may detect the maximum transmission output according to the dual connection (S1202). Here, the maximum transmission power according to the dual connection may be determined according to a power class corresponding to a combination of the frequency band of the first base station and the frequency band of the second base station.

On the other hand, when the maximum transmission power according to the dual connection is determined in step S1202, the modem 270 performs the first signal initial transmission output maximum value and the second signal initial transmission output maximum value obtained in step S1200, and the dual connection The maximum transmission power of the first signal (signal according to the first communication method) and the maximum transmission power of the second signal (signal according to the second communication method) may be determined based on the maximum transmission output according to the method ( S1204 ).

In this case, the modem 270 may calculate a ratio of the sum of the first signal initial transmission output maximum value and the second signal initial transmission output maximum value and the maximum transmission output power according to the double connection. The maximum transmission power of the first signal and the maximum transmission power of the second signal may be determined by multiplying the calculated ratios by the maximum value of the first signal initial transmission output and the maximum value of the second signal initial transmission output, respectively.

Here, when the electronic device 100 is dually connected to a 4G network and a 5G network, the first signal may be any one of a 4G signal and a 5G signal. Also, the second signal may be a signal different from the first signal. Therefore, if this is summarized as the equations for the 4G signal and the 5G signal, it can be arranged as shown in Equation 1 below.

here

is the maximum transmit power of 4G signal,

is the maximum transmit power of 5G signal,

is the maximum initial transmit power of the 4G signal,

is the maximum initial transmit power of the 5G signal, and

is the maximum transmission power in dual connection according to the combination of the frequency band of the 4G base station and the frequency band of the 5G base station.

As shown in Equation 1 above, in the present invention, with respect to the maximum transmission output during dual connection, the maximum initial transmission output of the 4G signal determined from the frequency band of the 4G base station and the 5G signal determined from the frequency band of the 5G base station It is possible to calculate a ratio according to the sum of the initial transmission output maximum values, and calculate the maximum transmission power of the 4G signal and the maximum transmission output of the 5G signal based on the calculated ratio. Therefore, within the maximum transmit power limit at the time of the double connection, the maximum initial transmit power of the 4G signal (

) and the maximum initial transmit power of the 5G signal (

), the maximum transmission power of the 4G signal and the maximum transmission output of the 5G signal may be determined differently depending on the difference. Accordingly, for a signal according to a communication method having a larger initial maximum transmission output value, a larger maximum transmission power may be set even after double connection.

Meanwhile, when the maximum transmission power of the first signal and the maximum transmission power of the second signal are determined in step S1204, the modem 270 may measure the path loss of the first network and the path loss of the second network (S1206). .

For example, in step S1206 , the modem 270 may first measure the strength of the first reference signal received from the first base station of the first network and the strength of the second reference signal received from the second base station of the second network. . And when the reception strength of the first reference signal and the second reference signal is measured, the difference between the reception strength of the first reference signal and the signal strength reference value (first signal strength reference value) previously received from the first base station is calculated Thus, a path loss (first network path loss) for the first signal may be calculated. Then, the path loss (second network path loss) for the second signal is calculated by calculating a difference between the reception strength of the second reference signal and the signal strength reference value (second signal strength reference value) previously received from the second base station. can be calculated.

The modem 270 reflects the measured path losses to the maximum transmission power of the first signal and the maximum transmission output of the second signal determined in step S1204, and the maximum transmission output of the first signal and the maximum transmission of the second signal. The output may be updated (S1208).

Here, when the electronic device 100 is dually connected to a 4G network and a 5G network, the first signal may be any one of a 4G signal and a 5G signal. In addition, since the second signal is a signal different from the first signal, the maximum transmit power of the first signal and the maximum transmit power of the second signal updated according to the measured path losses are the maximum transmit power of the 4G signal and the maximum transmit power of the 5G signal. It can be expressed as the maximum transmission power of the signal, and thus it can be expressed as Equation 2 below.

here,

is the maximum transmit power of the updated 4G signal,

is the maximum transmit power of the updated 5G signal,

is the maximum transmit power of 4G signal before update,

is the maximum transmit power of 5G signal before update,

is path loss in 4G network,

is the path loss of the 5G network,

is a proportional constant of power that will increase or decrease according to the path loss ratio.

here

is a preset proportional constant (eg, 1, 2, 3, 4, ...), and is a path loss ratio (path loss of 4G network according to the sum of path loss of each network (

) or path loss in 5G networks (

) may determine a ratio reflected in the transmission output increased or decreased according to the update. That is, the proportional constant (

) is larger, the maximum transmission power of the 4G signal or the maximum transmission power of the 5G signal may be updated larger or smaller according to the 4G loss ratio or the 5G loss ratio.

Meanwhile, in step S1208, when the maximum transmission power of the first signal and the maximum transmission output of the second signal are updated, the modem 270 receives at least one power according to the updated first maximum transmission power and the second maximum transmission output, respectively. It is possible to control the amplifiers (S1210).

When an antenna for transmitting and receiving a signal according to the first communication method with the first base station is referred to as a first antenna, the modem 270 amplifies at least one power amplifier (first power amplifier) connected to the at least one first antenna. The gain may be controlled according to the maximum transmit power of the updated first signal. In this case, if there is only one first antenna, the modem 270 may control one first power amplifier amplification gain so that the first signal is amplified to be less than or equal to the maximum transmission power of the updated first signal. .

On the other hand, if there are a plurality of first antennas, the modem 270 determines that the sum of the transmission outputs of signals amplified by each of the plurality of first power amplifiers connected to each of the plurality of first antennas is the maximum transmission of the updated first signal. The amplification gains of the plurality of first power amplifiers may be controlled to be equal to or less than the output.

On the other hand, in the case of the second antenna for transmitting and receiving a signal according to the second communication method with the second base station, the modem 270 has an amplification gain of at least one power amplifier (second power amplifier) connected to the at least one second antenna. can be controlled according to the maximum transmission power of the updated first signal. In this case, if there is only one second antenna, the modem 270 controls the amplification gain of one second power amplifier so that the signal according to the second communication method is lower than the maximum transmission power of the updated second signal. can be amplified.

On the other hand, if there are a plurality of second antennas, the modem 270 determines that the sum of the transmit powers of signals amplified by each of the plurality of second power amplifiers connected to each of the plurality of second antennas is the maximum transmission of the updated second signal. The amplification gains of the plurality of second power amplifiers may be controlled to be equal to or less than the output.

In addition, the modem 270 may detect whether a preset period has expired (S1212). And when the preset period expires, the process may proceed to step S1206 again, and path losses of each network may be measured. In addition, the maximum transmission output of each signal may be updated based on the measured path losses (step S1210), and amplification gains of the plurality of power amplifiers may be controlled according to the updated maximum transmission output (step S1212).

The preset period may be the same period as the period in which the path loss of each network is measured. In this case, since the path loss is measured when measuring signal strength and quality from a serving cell and a neighbor cell for a measurement report performed every preset period, the serving cell and the neighboring cell The step S1206 may be performed according to the measurement report period in which the signal strength and quality are measured. Accordingly, the maximum transmission outputs of each signal may be updated according to the measurement report period in which the signal strength and quality of the serving cell and the neighboring cell are measured.

Therefore, if the period at which the path loss of each network is measured is 20 ms, the modem 270 may update the maximum transmission power of the first signal and the second signal with a period of 20 ms.

Meanwhile, in step S1208, when the path loss for any one network is not measured, the modem 270 may update the maximum transmission power of each signal by reflecting a preset initial path loss value. For example, in a state connected only to a 4G network, since the path loss of the 5G network is not measured before the 5G base station is added, when step S1206 is first performed in a state in which the dual connection is made, the modem 270 sets the initial path loss value. can be set as the path loss of each network. In this case, the maximum transmission power of the first signal and the maximum transmission output of the second signal may be respectively updated according to the initial path loss value (eg, 1) set in each network.

13 is a flowchart illustrating in more detail a process of acquiring initial transmission output maximum values of signals according to different communication methods in an electronic device related to the present invention. 14A and 14B are exemplary diagrams illustrating power classes according to 4G and 5G frequency bands and power classes in dual connection according to a combination of 4G frequency band and 5G frequency band.

Referring to FIG. 13 , the modem 270 of the electronic device 100 according to an embodiment of the present invention may be connected to a first network to perform wireless communication with the first network. In this case, the modem 270 detects a power class according to the frequency band from the first base station of the first network, and transmits output according to any one power class according to whether the first base station supports the detected power classes. The maximum value may be obtained (S1300).

Information on the power class for each of these networks may be pre-stored in the memory 170 in the form of a table. In this case, information on a power class designated for each frequency band according to the 4G communication method and information on power classes designated for each frequency band according to the 5G communication method may be stored separately, respectively, and the frequency constituting the dual connection Information on power classes corresponding to the band combination may be stored.

14a and 14b (a) and (b) are examples of information of power classes designated for each frequency band according to the 4G communication method, respectively, an example of information of power classes designated for each frequency band according to the 5G communication method, and double An example of information on power classes corresponding to a frequency band combination constituting a connection is shown.

First, referring to FIG. 14A, FIG. 14A shows a power class designated for each frequency band and maximum transmission outputs designated for each power class in the 4G communication method. As shown in FIG. 14A , at least one power class (Class 1, Class 2, Class 3, Class 4) is divided for each 4G frequency band, and a maximum transmission power may be designated for each power class.

Accordingly, when the first network is a 4G network, the modem 270 detects power classes corresponding to the frequency band used by the currently connected 4G base station in step S1300, and determines whether the detected power class is supported or not. can be checked in For example, in case of EUTRA band 3, power class 1 and power class 3 may be detected, and power class 1 or power class 3 may be selected according to whether a 4G base station is supported. In this case, when power class 1 is selected, the initial transmission power of the 4G signal may be determined to be 31 dBm, and if power class 3 is selected, the initial transmission power of the 4G signal may be determined to be 23 dBm.

When the first signal initial transmission output is obtained in step S1300 , the modem 270 may control the transmission output of at least one power amplifier PA according to the first signal initial transmission output ( S1302 ). In more detail, the modem 270 may control the amplification gain of the at least one power amplifier so that the first signal is amplified to be less than or equal to the first signal initial transmission output.

In this state, the modem 270 may detect whether the electronic device 100 is simultaneously connected to a plurality of networks according to the dual connection (S1304). And if it is determined in step S1304 that double connection is not made, the process may proceed to step S1302 again to transmit/receive a signal according to the first communication method to and from the first network through the first base station.

On the other hand, as a result of detection in step S1304, if dual connection is established, the modem 270 may detect a power class according to the frequency band from the second base station connected through the dual connection.

In this case, if the first network is a 4G network, the second network may be a 5G network. In this case, as shown in (a) of FIG. 14B , the electronic device 100 uses a power class designated for each frequency band in the 5G communication method and the maximum transmission outputs designated for each power class, which the 5G base station uses. Among the power classes corresponding to the frequency band, the maximum initial transmission power of the 5G signal may be obtained according to any one power class that the 5G base station can support ( S1306 ).

When the maximum initial transmission power of the second signal is obtained through step S1306, the modem 270 may proceed to step S1202 of FIG. 12 to obtain the maximum transmission power according to the dual connection. In this case, as shown in (b) of FIG. 14b, the electronic device 100 includes a power class corresponding to a combination of frequency bands constituting a dual connection, that is, a frequency band of a 4G base station and a frequency band of a 5G base station, and its Based on the maximum transmit power according to the power class, the maximum transmit power according to the dual connection may be obtained.

Meanwhile, FIGS. 15A and 15B are exemplary diagrams illustrating examples of the maximum transmission outputs for each power amplifier that are determined differently according to the propagation environment of the electronic device 100 related to the present invention according to the operation process of FIG. 12 . .

First, referring to FIG. 15A , the left diagram of FIG. 15A shows a state (LTE mode) in which the electronic device 100 is connected only to a 4G network. In this case, the electronic device 100 sets the initial transmission output maximum value (

), the maximum transmission power may be determined.

In this state, when dual connection is made, the electronic device 100 may be connected to both the 4G base station 1500 and the 5G base station 1550 as shown in the right diagram of FIG. 15A . Then, the modem 270 of the electronic device 100 sets the maximum transmission output of the 4G signal (

) and the maximum transmit power of 5G signal (

) can be determined. In this case, the maximum initial transmit power of the 4G signal (

) is 26 dBm, and the maximum initial transmit power of the 5G signal (

) is 23 dBm, and when the maximum transmission power according to the dual connection is 26 dBm, according to Equation 1, the maximum transmission power (

) is 24.23 dBm (= 265.134 mW), the maximum transmit power of 5G signal (

) can be calculated as 21.23 dBm (= 132.884 mW) (proportional constant (

) is assumed to be set to 2).

In this state of being connected only to the 4G network, the path loss of the 5G network may not be measured until the 5G base station is added. Therefore, when step S1206 of FIG. 12 for measuring the path loss for the first time in a state in which the dual connection is made is performed, the modem 270 may set the preset initial value of the path loss as the path loss of each network as described above.

In this case, the initial value of the path loss of the 4G network and the initial value of the path loss of the 5G network may be determined to be 1, respectively. Accordingly, as the result of calculating the maximum transmission power of the 4G signal and the maximum transmission output of the 5G signal, the maximum of the 4G signal The transmit power and the maximum transmit power of the 5G signal may be calculated as 24.23 dBm and 21.23 dBm, respectively.

Meanwhile, FIG. 15B illustrates an example in which the path loss changes as the electronic device 100 moves in the same state as FIG. 15A .

First, (a) of FIG. 15B shows an example in which the electronic device 100 moves in a direction away from the 4G base station 1500 and closer to the 5G base station 1550 .

Referring to the left and right drawings of FIG. 15B (a), an example in which the electronic device 100 moves in a direction away from the 4G base station 1500 and closer to the 5G base station 1550 is shown. In this case, the path loss measured from the 4G network may increase and the path loss measured from the 5G network may decrease. That is, the path loss for the 4G network may be greater than the path loss for the 5G network.

For convenience of explanation, assuming that the path loss of the increased 4G network is 110 and the path loss of the reduced 5G network is 90, the path loss ratio of the 4G network (

) can be calculated as 1.1.

Then, the modem 270 may update the maximum transmission power of the 4G signal by reflecting the path loss ratio (1.1) of the 4G network according to Equation 2 above. Therefore, as shown in the diagram on the right of (a) of FIG. 15B, the maximum transmission output of the 4G signal (

) is 24.64 dBm (265.134 mW (= 24.23 dBm,

) X 1.1 = 291.647 mW).

On the other hand, as the path loss of the 5G network decreases, the path loss ratio of the 5G network (

) can be calculated as 0.9. Then, the modem 270 may update the maximum transmission power of the 5G signal by reflecting the path loss ratio (0.9) of the 5G network according to Equation 2 above. Therefore, as shown in the diagram on the right of FIG. 15B (a), the maximum transmission output of the 5G signal (

) is 20.77 dBm (132.884 mW (= 21.23 dBm,

) X 0.9 = 119.596 mW).

On the other hand, in (b) of Figure 15b, the electronic device 100, in a state that is moved as shown on the right side of Figure 15b (a), moves closer to the 4G base station 1500 and away from the 5G base station 1550 again. An example of the case is shown.

In this case, the path loss measured from the 5G network may increase, and the path loss measured from the 4G network may decrease. That is, the path loss for the 5G network may be greater than the path loss for the 4G network.

For convenience of explanation, assuming that the path loss of the increased 5G network is 110 and the path loss of the reduced 4G network is 90, the path loss ratio of the 5G network (

) can be calculated as 1.1.

Then, the modem 270 may update the maximum transmission power of the 5G signal by reflecting the path loss ratio (1.1) of the 5G network according to Equation 2 above. Therefore, as shown in the right figure of FIG. 15B (b), the maximum transmission output of the 5G signal (

) is 21.65 dBm (132.884 mW (= 21.23 dBm,

) X 1.1 = 146.172 mW).

On the other hand, as the path loss of the 5G network decreases, the path loss ratio of the 4G network (

) can be calculated as 0.9. Then, the modem 270 may update the maximum transmission power of the 4G signal by reflecting the path loss ratio (0.9) of the 4G network according to Equation 2 above. Therefore, as shown in the right figure of FIG. 15b (b), the maximum transmission output of the 4G signal (

) is 23.78 dBm (265.134 mW (= 24.23 dBm,

) X 0.9 = 238.621 mW).

Meanwhile, the present invention may be applied to an electronic device having a Non-Dynamic Power Sharing (DPS) structure in which transmission output cannot be shared. For example, since power sharing is not made between the 4G communication module and the 5G communication module, for example, the 4G communication module and the 5G communication module are implemented as separate chips, it is difficult to distribute the transmission output of the 4G signal and the transmission output of the 5G signal. Because.

Meanwhile, according to the present invention, as described above, the maximum transmission output value determined according to the frequency band of the 4G base station, the maximum transmission output value determined according to the frequency band of the 5G base station, and the combination of the 4G base station and the 5G base station frequency bands Based on the determined maximum transmission output value during dual connection, the maximum transmission outputs of the 4G signal and the 5G signal may be determined by reflecting the difference between the maximum transmission output values. Therefore, since there is no need to share the transmission output between the 4G communication module and the 5G communication module, the present invention can be applied to the electronic device having the Non-DPS structure.

On the other hand, in the case of an electronic device having a DPS structure, a total power is generally adjusted in units of a transmission time interval (TTI). Accordingly, in the case of an electronic device having a DPS structure, the total output of the 4G signal and the 5G signal may be adjusted every 1 ms corresponding to TTI in the case of a 4G network and 0.5 ms corresponding to TTI in the case of a 5G network.

Accordingly, in the case of an electronic device having a DPS structure, the total output adjustment of the 4G communication module and the 5G communication module may be performed very frequently, and CPU resources may be consumed accordingly. In this case, since the time interval during which the total output is adjusted is very short (4G: 1ms, 5G: 0.5ms), even when the electronic device moves, the positions before and after the total output is adjusted may be almost identical. Therefore, the result before and after the adjustment of the total output may be almost the same, and in this case, resources may be wasted unnecessarily.

On the other hand, in the present invention, as described above, the maximum transmission power of the first signal and the second signal may be updated every period (eg, 20 ms) in which the path loss of each network is measured. In this case, as described above, the period during which the path loss of the network is measured has a longer time interval than TTI (4G: 1 ms, 5G: 0.5 ms). This avoids the case where this is often done.

Further scope of applicability of the present invention will become apparent from the following detailed description. However, it should be understood that the detailed description and specific embodiments such as preferred embodiments of the present invention are given by way of illustration only, since various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art.

In relation to the present invention described above, in the electronic device 100 having a plurality of antennas, the antenna including the processor 180 and the control method for controlling the antenna including the processor 180 and the control method thereof are provided in a computer-readable medium in which a program is recorded. It can be implemented as code. The computer-readable medium includes any type of recording device in which data readable by a computer system is stored. Examples of computer-readable media include Hard Disk Drive (HDD), Solid State Disk (SSD), Silicon Disk Drive (SDD), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. There is also a carrier wave (eg, transmission over the Internet) that is implemented in the form of. Also, the computer may include the processor 180 of the electronic device 100 . Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

Claims

a plurality of antennas including at least one first antenna for transmitting and receiving a first signal according to a first communication method and at least one second antenna for transmitting and receiving a second signal according to a second communication method;

a plurality of power amplifiers respectively connected to the plurality of antennas; and,

When the first network according to the first communication method and the second network according to the second communication method are simultaneously connected, the initial transmission output maximum value of the first signal and the initial transmission output maximum value of the second signal determine a maximum transmission power of the first signal and a maximum transmission power of the second signal according to a ratio of a maximum transmission power according to the dual connection of the first and second networks;

The maximum transmission output of the first signal by measuring a first path loss for the first signal and a second path loss for the second signal at a preset period and reflecting the measured first and second path loss and updating the maximum transmit power of the second signal,

and a modem for controlling amplification gains of at least one first power amplifier coupled to the first antenna and at least one second power amplifier coupled to the second antenna according to the updated maximum transmit outputs. electronic devices that do.
According to claim 1, wherein the modem,

An electronic device characterized in that the maximum transmission power of the first signal and the maximum transmission output of the second signal are determined according to Equation 1 below.

[Equation 1]

here,
is the maximum transmit power of the first signal,
is the maximum transmit power of the second signal,
is the maximum initial transmit power of the first signal,
is the initial transmission output maximum value of the second signal and,
is the maximum transmission power according to the dual connection of the first network and the second network.
According to claim 1, wherein the modem,

When the first and second path loss are measured, the electronic device according to Equation (2), wherein the determined maximum transmission power of the first signal and the maximum transmission output of the second signal are updated.

[Equation 2]

here,
is the maximum transmit power of the updated first signal,
is the maximum transmit power of the updated second signal,
is the maximum transmit power of the first signal before update,
is the maximum transmit power of the second signal before the update,
is the first path loss,
is the second path loss,
is a constant proportional to the path loss ratio.
According to claim 1, wherein the modem,

measuring the first path loss by calculating a difference between the first signal strength reference value received from the first base station of the first network and the reception strength of the reference signal received from the first base station;

and measuring the second path loss by calculating a difference between a second signal strength reference value received from a second base station of the second network and a reception strength of a reference signal received from the second base station.
According to claim 1, wherein the modem,

When measuring signal strength and quality from a serving cell and a neighbor cell for each of the first and second signals for a measurement report performed at regular intervals, the first path measuring the loss and the second path loss;

The preset period is,

Electronic device, characterized in that the first path loss and the second path loss is measured period.
3. The method of claim 2,

The initial transmission output maximum value of the first signal and the initial transmission output maximum value of the second signal are,

respectively, a power class corresponding to a frequency band of a first base station of the first network connected to the electronic device, and a power class corresponding to a frequency band of a second base station of the second network connected to the electronic device is determined according to

The maximum transmit power according to the double connection is,

The electronic device, characterized in that it is determined according to a power class corresponding to a combination of the frequency band of the first base station and the frequency band of the second base station.
7. The method of claim 6,

The maximum initial transmission power of the first signal is,

Among at least one power class corresponding to the frequency band of the first base station, it is determined according to any one power class determined according to a power class supportable by the first base station,

The maximum value of the initial transmission output of the second signal is,

Among at least one power class corresponding to the frequency band of the second base station, the electronic device is determined according to any one power class determined according to a power class supportable by the second base station.
According to claim 1, wherein the modem,

obtaining the maximum initial transmission power of the first signal from the base station of the first network in a state in which communication is connected to the first network;

When the first and second networks are connected at the same time, the initial transmission output maximum value of the second signal is further obtained from the base station of the second network, and the initial transmission output maximum value of the first signal and the second signal are Electronic device, characterized in that it acquires the maximum value of the initial transmission power.
According to claim 1, wherein the modem,

When there are a plurality of first antennas, a plurality of first antennas connected to each of the plurality of first antennas such that a sum of transmission powers transmitted from each of the plurality of first antennas is equal to or less than the maximum transmission power of the updated first signal. control the amplification gain of the first power amplifier;

When there are a plurality of second antennas, a plurality of second antennas connected to each of the plurality of second antennas such that the sum of transmission powers of signals transmitted from each of the plurality of second antennas is equal to or less than the maximum transmission power of the updated second signal. An electronic device for controlling the amplification gain of the second power amplifier.
In the electronic device control method,

When the electronic device is simultaneously connected to the first network according to the first communication method and the second network according to the second communication method, the first base station of the first network and the second base station of the second network a first step of obtaining a maximum initial transmission output value of a first signal according to a first communication method and an initial transmission output maximum value of a second signal according to the second communication method;

a second step of obtaining a maximum transmission power according to dual connectivity based on a combination of the frequency band of the first base station and the frequency band of the second base station;

Based on the maximum initial transmit power of the first signal and the maximum initial transmit power of the second signal, and the maximum transmit power according to the dual connection, the maximum transmit power of the first signal and the maximum transmit power of the second signal a third step of determining a maximum transmission power;

A first path loss with respect to the first signal and a second path loss with respect to the second signal are measured, and the maximum transmit power and the second path loss of the first signal are reflected by reflecting the measured first and second path loss. a fourth step of updating the maximum transmit power of the signal; and,

Based on the updated maximum transmission power of the first signal and the maximum transmission output of the second signal, the amplification gain of the first power amplifier connected to the antenna for transmitting the first signal and the antenna for transmitting the second signal and a fifth step of controlling the amplification gains of the connected second power amplifiers, respectively.
11. The method of claim 10, wherein the third step,

The method of controlling an electronic device, characterized in that the step of determining the maximum transmission power of the first signal and the maximum transmission output of the second signal according to Equation 1 below.

[Equation 1]

here,
is the maximum transmit power of the first signal,
is the maximum transmit power of the second signal,
is the maximum initial transmit power of the first signal,
is the initial transmission output maximum value of the second signal and,
is the maximum transmission power according to the dual connection of the first network and the second network.
11. The method of claim 10, wherein the fourth step,

a step 4-1 of measuring the strengths of first and second reference signals respectively received from the first base station of the first network and the second base station of the second network;

a step 4-2 of calculating differences between first and second signal strength reference values received from the first and second base stations, respectively, and the measured strengths of the first and second reference signals;

a 4-3 step of measuring the first and second path loss based on the calculated differences; and,

and a step 4-4 of updating the maximum transmission power of the first signal and the maximum transmission output of the second signal by reflecting the measured first and second path losses.
13. The method of claim 12, wherein the step 4-4,

and updating the maximum transmission power of the first signal and the maximum transmission output of the second signal by reflecting the measured first and second path losses according to Equation 2 below.

[Equation 2]

here,
is the maximum transmit power of the updated first signal,
is the maximum transmit power of the updated second signal,
is the maximum transmit power of the first signal before update,
is the maximum transmit power of the second signal before the update,
is the first path loss,
is the second path loss,
is a constant proportional to the path loss ratio.
11. The method of claim 10,

The fourth step is performed every preset period,

The preset period is,

The control method of an electronic device, characterized in that it is a period in which the first path loss and the second path loss are measured.
15. The method of claim 14,

The period in which the first and second path loss is measured is,

A method of controlling an electronic device, characterized in that it is a period in which a measurement report reporting signal strength and quality measurement is made from a serving cell and a neighbor cell for each of the first and second signals. .