WO2021187633A1

WO2021187633A1 - Electronic device for supporting 5g communication and method for controlling electronic device

Info

Publication number: WO2021187633A1
Application number: PCT/KR2020/003634
Authority: WO
Inventors: 김기환
Original assignee: 엘지전자 주식회사
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2021-09-23

Abstract

The present invention relates to an electronic device for supporting 5G communication, comprising: an antenna module for transmitting and receiving a radio signal according to a first 5G communication scheme; a temperature sensor for detecting the temperature of the antenna module; a signal strength measurement unit for measuring the signal strengths of a serving cell and neighboring cells according to measurement configuration information provided from a base station; and a modem for changing, when the temperature of the antenna module is a preset temperature or higher, at least some from among a signal strength measurement result of the serving cell and signal strength measurement results of neighboring cells having the same frequency range as the serving cell to a signal strength less than a preset threshold, and transmitting the signal strength measurement result including the changed signal strength to the base station as a response to the measurement configuration information.

Description

Electronic device supporting 5G communication and control method of the electronic device

The present invention relates to an electronic device capable of wireless communication of the 5G communication method.

Recently, various electronic devices, including electronic devices, have been commercialized as high-speed wireless data systems using 5G communication technology to provide various services. As such high-speed wireless data communication is supported, the electronic device includes a plurality of antenna modules, and high-speed wireless data communication can be performed by applying a higher voltage to the plurality of antenna modules. In particular, in the case of a 5G communication method using a millimeter wave (mmWave) using a very high frequency ranging from 30 to 300 GHz or a 5G communication method using a frequency (Sub 6) of a band below 6 GHz, the advantage of using a high bandwidth is to have a very high data transmission speed However, since the voltage applied to the PA (Power Amplifier, hereinafter referred to as the Power Amplifier) is high, there is a problem that a rapid temperature rise may be induced around the PA.

Accordingly, research to alleviate a sudden temperature rise that may occur during communication according to the 5G communication method (hereinafter referred to as 5G communication) is being actively conducted.

As part of this study, a thermal mitigation policy was devised to relieve the heat of the antenna module through a specific heat mitigation operation corresponding to each temperature step by step according to the temperature of the antenna module. In the case of such a heat mitigation policy, instead of limiting the 5G communication performance by limiting the data transmission rate or reducing the number of antennas as the temperature of the antenna module increases, the transmission rate of downloaded or uploaded data is gradually limited, instead of limiting the antenna module’s performance. It is a policy to alleviate fever.

In the case of such a heat mitigation policy, a specific heat mitigation operation corresponding to each different temperature may be sequentially performed according to the temperature. For example, when the antenna module reaches the first temperature in a normal operating state, the data transmission rate is limited to suppress heat generation of the electronic device, and when the antenna module reaches a second temperature higher than the first temperature, the antenna module performs wireless communication The number of antennas used for the wireless communication is reduced, and when a third temperature higher than the second temperature is reached, the antenna module is switched to another antenna module to suppress heat generation of the electronic device. In this state, if the heat of the electronic device continues and reaches the preset 5G communication limit temperature, the electronic device may stop 5G communication to avoid damage to the device or the risk of fire.

On the other hand, if 5G communication is interrupted like this, if it is an NSA (Non Stand Alone) type electronic device that is simultaneously connected with the 4G network, such as ENDC (EUTRA New Dual Connevtivity), the communication method is switched to the 4G communication method (Inter RAT (Radio Access) Technology) handover) to connect the communication using the 4G communication method, so that the communication connection can be continued. However, unlike the NSA method, in the case of the SA (Stand Alone) method in which electronic devices are connected only to the 5G network, the temperature condition corresponding to the last step according to the Thermal Mitigation policy that restricts 5G communication, that is, the 5G communication limit temperature When it arrives, there is a problem that there is no longer a way to relieve heat while maintaining 5G communication, so 5G communication is interrupted. Then, the SA method electronic device performs communication connection to the 4G network according to the fallback method. Since the 5G core network and the 4G network are different from each other, when connected to the 4G network through the fallback, the core network There is a problem that all connections of Accordingly, there is a problem that a temporary service interruption occurs until the heat of the electronic device is relieved, and there is a problem that the service interruption time may be prolonged.

The present invention is to solve the above-described problem, and when providing wireless communication of the 5G communication method, when the temperature of the electronic device reaches the preset 5G communication limit temperature, it avoids the interruption of the communication service due to heat generation, or An object of the present invention is to provide an electronic device capable of minimizing the time during which the communication service is interrupted when the communication service is interrupted due to heat, and a method for controlling the electronic device.

An electronic device according to an embodiment of the present invention for achieving the above or other objects, an antenna module for transmitting and receiving a wireless signal according to the first 5G communication method, a temperature sensor for detecting the temperature of the antenna module, and provided from a base station A signal strength measuring unit for measuring the signal strength of a serving cell and a neighboring cell according to the measurement setting information, and when the temperature of the antenna module is equal to or higher than a preset temperature, a signal strength measurement result of the serving cell and the serving At least some of the signal strength measurement results of neighboring cells having the same frequency range as the cell are changed to a signal strength less than a preset threshold, and a signal strength measurement result including the changed signal strength is obtained for the measurement setting information. and a modem for transmitting to the base station in response.

In an embodiment, the preset temperature is a threshold temperature at which fallback from the electronic device to another RAT (Radio Access Technology) is performed according to a preset heat mitigation policy or a temperature lower by a predetermined temperature from the critical temperature It is characterized by

In an embodiment, the other RAT is characterized in that it is a second 5G communication method or a 4G communication method using a different frequency band from the 5G communication method.

In an embodiment, the modem receives handover information for handover of the electronic device from the base station in response to a signal strength measurement result including the changed signal strength, and the received handover information It is characterized in that handover is performed to a cell according to another RAT based on the .

In an embodiment, when the handover of the electronic device is performed, the modem may measure the signal strength measurement results for cells according to the first 5G communication method until the temperature of the antenna module is lowered to a predetermined temperature or less. A signal strength measurement result that is not included is transmitted to the base station in response to the measurement setting information.

In an embodiment, the modem, when the strength of a signal received from the serving cell and neighboring cells having the same frequency range as the serving cell or the electric field strength of a beam or signal measured from the serving cell is equal to or greater than the threshold value , characterized by changing the signal strength measured from the serving cell and neighboring cells having the same frequency range as the serving cell to be less than the threshold value.

In an embodiment, the modem, when the strength of a signal received from the serving cell and neighboring cells having the same frequency range as the serving cell or the electric field strength of a beam or signal measured from the serving cell is equal to or greater than the threshold value , ignoring the signal strength measured from the serving cell and neighboring cells having the same frequency range as the serving cell.

In an embodiment, the threshold value is characterized in that the base station, the signal strength as a reference for determining whether the handover of the electronic device is necessary.

A method of controlling an electronic device according to an embodiment of the present invention for achieving the above or other object, the step of measuring the temperature of the electronic device, and the signal level of cells adjacent to the electronic device according to the measurement setting information provided from the base station and detecting, when the temperature of the electronic device is equal to or greater than a preset temperature, a serving cell and a signal measurement result of neighboring cells having the same frequency range as the serving cell; and when the signal magnitudes measured from the neighboring cells are greater than or equal to a preset threshold, changing the detected signal magnitudes from the detected serving cell and neighboring cells to a signal magnitude less than the threshold, and the changed serving cell and neighboring cells and transmitting a signal magnitude measurement result of the two to the base station in response to the measurement configuration information.

In an embodiment, when information related to handover of the electronic device is received from the base station in response to the changed signal magnitude measurement result, another RAT (Radio Access Technology) according to the received handover related information It characterized in that it further comprises the step of performing handover to the cell.

In an embodiment, when handover to the other RAT is made, measuring signal levels of other adjacent cells according to measurement configuration information received from a base station of the other RAT; Detecting a signal magnitude measured from cells having the same frequency range as the serving cell before the handover among cells, re-measuring the temperature of the electronic device, and setting the re-measured temperature of the electronic device to a preset value detecting whether the temperature is equal to or less than a second temperature, and based on whether the temperature of the electronic device is equal to or less than the second temperature, including a signal magnitude measured from cells having the same frequency range as the serving cell before the handover It characterized in that it further comprises the step of transmitting the signal magnitude measurement result in response to the received measurement setting information.

In an embodiment, the preset temperature is a threshold temperature at which fallback from the electronic device to another RAT (Radio Access Technology) is performed according to a preset heat mitigation policy or a temperature lower by a predetermined temperature from the critical temperature and the other RAT is a second 5G communication method or a 4G communication method using a frequency band different from the 5G communication method.

In an embodiment, the threshold value is a signal level that is a reference for the base station to determine whether handover of the electronic device is necessary, and the signal level is the size of a signal received from the base station of the cell or It is characterized in that the electric field strength of the beam or signal detected from the base station of the cell.

According to an embodiment of the present invention, when the temperature of an electronic device providing 5G communication reaches a preset temperature, a serving cell and a neighbor cell having the same frequency range as the serving cell Cell) is changed to less than a preset threshold and transmitted to the 5G base station, so that the 5G base station can perform handover of the electronic device to a cell according to another RAT. Accordingly, the present invention avoids the interruption of the communication service due to the heat of the electronic device by allowing the electronic device to be handed over to a cell of another RAT before the temperature of the electronic device reaches the threshold temperature at which 5G communication is restricted, or when the communication service is stopped Also, there is an effect that the time during which the communication service is interrupted can be minimized.

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 flowchart illustrating a process in which a handover is performed based on a result of an electronic device measuring signal sizes of a serving cell and a neighboring cell according to the present invention.

12 is a flowchart illustrating an operation process in which an electronic device related to the present invention changes a part of signal magnitude measurement results of a serving cell and a neighboring cell and transmits it to a base station when a preset temperature is reached.

13 is a flowchart illustrating an operation process of ignoring a portion of measurement results of signal magnitudes of a serving cell and a neighboring cell when an electronic device related to the present invention reaches a preset temperature.

14 is a flowchart illustrating an operation process of an electronic device related to the present invention transmitting a signal magnitude measurement result of a neighboring cell to a base station according to the temperature of the electronic device after handover is performed according to the changed signal magnitude measurement result. It is a flow chart.

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. have.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiment described in this specification 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. will be.

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, gesture, proximity, or hovering input using an electronic pen or a part of the user's body.

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 by the processor 180 to perform an operation (or function) of the electronic device.

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 can 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. have. 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 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. have. 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, an image may be captured in various ways using a plurality of lenses, and an image 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 side 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, according to 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. have.

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 operable 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. have.

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, as shown in FIG. 5 , the application program operating in the 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 in consideration of 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, with respect 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 takes place at the beginning of the slot, UL control can happen 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). In addition, 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 an overlay network or for a hot spot, enterprise use, and EPC-5GC interworking is required if it is out of 5G NR coverage. 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. Core is EPC and gNB is an en-gNB capable of interworking with EPC and 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 build 5G networks with the introduction of en-gNB and minimal LTE upgrades without 5GC.

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.

11 is a flowchart illustrating a process in which a handover is performed based on a result of the electronic device 100 measuring signal levels of a serving cell and a neighboring cell according to the present invention.

Referring to FIG. 11 , the electronic device 100 according to an embodiment of the present invention is a serving cell from a base station (5G base station, 1100) and another cell adjacent to the electronic device 100 (neighbor cell). ) may receive measurement setting information (Measurement Configuration) for measuring the signal level (S1101). The measurement setting information includes information on a cell (PCI, Physical Cell Identification) to measure the signal size, the type of cell to measure the signal size (frequency band used, communication method, etc.), and a period for measuring the signal size can do. Through this measurement setting information, the base station 1100 may instruct the electronic device 100 to measure the signal level only at a specific time, and this may be defined as an event.

Meanwhile, the electronic device 100 that has received the measurement setting information from the base station 1100 may measure the signal magnitudes of the serving cell and the neighboring cell based on the measurement setting information (S1102). Here, the serving cell may mean a cell to which the electronic device 100 is currently connected to provide a communication service, and the neighboring cell may mean a cell other than the serving cell located in the vicinity of the electronic device 100 .

For example, when the electronic device 100 uses a millimeter wave (mmWave) band frequency FR2 and is connected to a serving cell using the millimeter wave band frequency, the serving cell is the electronic device 100 and Similarly, it may be a cell using a frequency of a millimeter wave (mmWave) band. On the other hand, the neighboring cell may include cells using a different frequency range as well as cells using the same frequency range (a frequency of a millimeter wave (mmWave) band) as the serving cell.

For example, the neighboring cell may include a cell using the frequency FR1 of the Sub-6 band located around the electronic device 100 . In addition, the cell (cell according to the 4G communication method) using a frequency of the 4G band including an area according to the location of the electronic device 100 may also be included. In this case, the cell using the frequency of the millimeter wave band may be a cell according to the same RAT (mmWave RAT) as the current electronic device 100, and a cell (Sub 6 RAT) or 4G using the frequency of the Sub-6 band. The cell (4G RAT) using the frequency of the band may be a cell according to a different RAT from the current electronic device 100 .

Meanwhile, the electronic device 100 may detect the signal strength detected from the serving cell and the neighboring cell as the signal magnitude in step S1102. Alternatively, the electronic device 100 may detect the electric field strength of a beam or signal detected from the serving cell and the neighboring cell in step S1102 as the signal magnitude. Hereinafter, a result of measuring the strength of a detected signal as well as an electric field strength of a beam or signal detected from a base station of a neighboring cell will be referred to as a measured signal magnitude.

Meanwhile, when the signal magnitudes of the serving cell and neighboring cells currently connected to the electronic device 100 are measured in step S1102, the electronic device 100 may transmit a result of measuring the signal magnitudes to the base station (Measurement Report, S1103). Then, the base station 1100 may determine whether handover is necessary based on the received signal magnitude measurement result (S1104).

For example, the base station 1100 determines that handover of the electronic device 100 is necessary according to a result of measuring the signal size received from the electronic device 100 and comparing the signal size of the serving cell with a preset threshold value. can do. That is, if the signal level of the serving cell is equal to or greater than a preset threshold, the base station 1100 may determine that handover of the electronic device 100 is not necessary, and the signal of the next measurement cycle from the electronic device 100 is obtained. It may wait until the size measurement result is received. In this case, when the signal magnitude measurement result according to the next measurement period is received again, step S1104 may be performed again.

Meanwhile, if it is determined in step S1104 that the signal level of the serving cell is less than a preset threshold, the base station 1100 may determine that handover of the electronic device 100 is necessary. In addition, when it is determined that handover of the electronic device 100 is necessary, the base station 1100 may determine whether handover to a cell according to another RAT is required based on the received signal magnitude measurement result ( S1105 ).

For example, the base station 1100 determines whether the signal magnitude of cells using the same frequency range as the serving cell or cells according to the same RAT as the serving cell from the signal magnitude measurement result received from the electronic device 100 is greater than or equal to a preset threshold. whether or not it can be detected. And if the same RAT as the serving cell, for example, when the electronic device 100 uses the millimeter wave band frequency as described above, the signal magnitude measured from neighboring cells using the millimeter wave band frequency in the same way It is possible to detect whether is equal to or greater than the threshold value. In addition, if the signal size of cells of the same RAT is also less than a preset threshold as a result of detection, it may be determined that inter RAT handover to another RAT is necessary.

In step S1105, the base station 1100 may determine handover to another RAT or to a cell of the same RAT. And, according to the determination result, any one of the cells of the other RAT or the same RAT may be determined as the base station to which the electronic device 100 is to be handed over ( S1106 ). To this end, the base station may further consider traffic or available network resources of cells of another RAT or cells of the same RAT having a signal size greater than or equal to a preset threshold, and comprehensively consider the traffic or network resources. ) to a base station (hereinafter, a handover base station) to be handed over may be determined.

And when the handover base station is determined in step S1106, the base station 1100 may transmit a handover instruction including information related to the determined handover base station to the electronic device 100 (S1107). Then, the electronic device 100 attempts a handover connection to the handover base station according to the received handover instruction, and the base station 1100 transmits information for handover of the electronic device 100 to the handover base station. By transmitting, the electronic device 100 can be connected (handover) to the handover base station (S1108).

Meanwhile, as shown in FIG. 11 , the handover of the electronic device 100 may be performed based on a signal magnitude measurement result performed by the electronic device 100 according to measurement setting information of the base station 1100 . Accordingly, when the temperature of the electronic device 100 reaches a preset temperature, the modem 270 of the electronic device 100 according to the embodiment of the present invention changes the signal magnitude measured from the serving cell and the neighboring cell to the base station 1100 . By transmitting to, the base station 1100 determines that handover of the electronic device 100 is necessary before the electronic device 100 reaches the threshold temperature, and sets the electronic device 100 to a different RAT than the currently used RAT. It allows to induce handover to the RAT cell.

12 is a flowchart illustrating an operation process in which the electronic device 100 related to the present invention changes some of the signal magnitude measurement results of the serving cell and the neighboring cell and transmits it to the base station when the preset temperature is reached.

Referring to FIG. 12 , the modem 270 of the electronic device 100 according to an embodiment of the present invention receives the measurement received from the base station while the temperature measured from the electronic device 100 reaches a preset specific temperature. When a signal magnitude measurement condition (eg, measurement period expiration) according to the setting information is satisfied ( S1200 ), the magnitude of a signal detected from the serving cell and neighboring cells of the electronic device 100 may be measured ( S1210 ).

Here, the specific temperature is a temperature at which 5G communication is restricted in the electronic device 100 according to a preset thermal mitigation policy, and conversion to another communication method, for example, fallback to 4G is made, that is, It may be a temperature determined according to the threshold temperature at which 5G communication is restricted due to heat generation. For example, the specific temperature may be a temperature lower than the critical temperature by a predetermined temperature. Alternatively, the specific temperature may be the critical temperature.

In addition, the temperature of the electronic device 100 is the temperature of the antenna module for performing wireless communication or the temperature of the PCB (Printed Curcuit Board) of the electronic device 100 or the modem 270 of the electronic device 100 or It could be the temperature of the CPU. In order to measure the temperature of the electronic device 100, the electronic device 100 according to an embodiment of the present invention may include at least one temperature sensor on the antenna module, the PCB, or the like, and is measured from the provided temperature sensor. The temperature may be detected as the temperature of the electronic device 100 .

Meanwhile, when the signal level is measured in step S1210, the modem 270 may detect whether the measured signal level is measured from the serving cell (S1220). In addition, if the measured signal level is the signal level measured from the serving cell (S1221), it may be detected whether the measured signal level is greater than or equal to a preset threshold value (S1240). Here, the threshold value may be a reference value for the base station to determine whether handover of the electronic device 100 is necessary.

Meanwhile, as a result of the detection in step S1220, if the measured signal level is measured from a neighboring cell other than the serving cell (S1222), the modem 270 determines that the neighboring cell whose signal level is measured has the same frequency range as the serving cell. Whether it is a used neighboring cell, that is, a cell according to the same RAT as the serving cell may be detected (S1230). And, as a result of the detection in step S1230, if the measured signal level is the signal level measured from a neighboring cell using the same RAT as the serving cell (S1231), the modem 270 proceeds to step S1240 and the measured signal level is It may be determined whether or not the threshold value is greater than the threshold value.

Meanwhile, as a result of the detection in step S1230, when the measured signal level is not the signal level measured from a neighboring cell using the same RAT as the serving cell (S1232), that is, the signal level measured from a cell using a different RAT from the serving cell. In the case of , the modem 270 may transmit the measurement result including the measured signal magnitude in response to the measurement setting information received from the base station (S1270). Therefore, when the temperature measured from the electronic device 100 reaches a predetermined specific temperature, the signal magnitude measured from a cell using a different RAT from the serving cell may be transmitted to the base station without change.

On the other hand, the signal magnitude measurement result of step S1210 is a measurement result from the serving cell or a neighboring cell using the same frequency range as the serving cell, that is, a neighboring cell using the same RAT as the serving cell, and also the measured signal size When is greater than or equal to the threshold value corresponding to the reference value for determining whether the handover is necessary (S1241), the modem 270 may change the measured signal level to a value less than the threshold value (S1250). In addition, the signal magnitude measurement result including the changed signal magnitude may be transmitted to the base station (S1260).

That is, when the temperature of the electronic device 100 reaches a predetermined specific temperature, the modem 270 determines that the signal level of the serving cell is greater than or equal to a specific threshold, or the signal level of a neighboring cell using the same frequency range as the serving cell. When is greater than or equal to a specific threshold, the measured signal magnitude may be changed to a value less than the threshold, and a signal magnitude measurement result including the changed signal magnitude may be transmitted to the base station. On the other hand, when the signal level of the serving cell is less than a specific threshold or when the signal level of a neighboring cell that does not use the same frequency range as the serving cell is above a specific threshold, the measured signal level is included without changing the signal level A signal magnitude measurement result may be transmitted to the base station.

Accordingly, the base station may determine that the signal level of the serving cell and the neighboring cell of the same RAT as the serving cell located in the vicinity of the electronic device 100 is less than the threshold value. Accordingly, the base station may determine that the electronic device 100 needs handover to another RAT in step S1105 of FIG. 11, and accordingly proceeds to step S1106 of FIG. can decide In addition, the electronic device 100 may be handed over to the cell of the other RAT through steps S1107 and S1108 of FIG. 11 .

Meanwhile, the cell of the other RAT may be a cell of another RAT of the same communication method. For example, as described above, when the electronic device 100 performs wireless communication using a frequency of the millimeter wave band according to the 5G communication method, the base station 1100 is a cell of the other RAT, which is a sub according to the 5G communication method. A cell using a frequency of band 6 may be determined as a handover base station, and handover of the electronic device 100 may be performed to a cell using a frequency of the Sub 6 band (the electronic device 100 performs millimeter wave 5G communication). and Sub 6 if both 5G communication are supported). However, when the electronic device 100 does not support the 5G communication method using the frequency of the Sub 6 band, the base station may determine a cell according to the 4G frequency band as the handover base station in step S1105 of FIG. 11 . In this case, the base station may set the electronic device 100 to be connected to the 4G core network, and accordingly, the handover of the electronic device 100 including the change of the core network may be performed.

Therefore, when the specific temperature is set lower than the threshold temperature, step S1105 of FIG. 11 in which the electronic device 100 determines whether handover to another RAT is necessary before reaching the threshold temperature due to 5G communication And step S1106 of FIG. 11 in which the handover base station is determined may be performed. Therefore, since the handover to the cell according to the 4G communication method is performed in advance before the electronic device 100 reaches the threshold temperature, communication service interruption due to heat generation can be avoided. In addition, even when the specific temperature is set to be the same as the temperature at which 5G communication is restricted, step S1105 of FIG. 11 and the handover base station for determining whether handover to another RAT is necessary before a fallback due to communication service interruption is requested Since the determined step S1106 of FIG. 11 can be performed, the time during which the communication service is interrupted can be minimized.

Meanwhile, as a result of the determination in step S1240, if the measured signal level is less than the preset threshold (S1242), the modem 270 proceeds to step S1270 and includes the measured signal level without changing the measured signal level. can be transmitted to the base station. In this case, since the actually measured signal level is less than the threshold, the base station may determine that handover of the electronic device 100 is necessary, and may determine handover to a cell according to another RAT.

Meanwhile, in the above description of FIG. 12 , when the measured signal level satisfies a preset condition, the measured signal level is changed and transmitted to the base station as an example. However, as described above, the measurement of the signal magnitude and the transmission of the measurement result may be set as an event by the base station and transmitted only when a preset condition is satisfied. In this case, the base station may determine that the above condition is not satisfied when the result of measuring the signal levels of the serving cell and the neighboring cell is not received from the electronic device 100 . And if the condition is not satisfied, it may be determined that the handover of the electronic device 100 is necessary.

In this case, the electronic device 100 related to the present invention induces handover of the electronic device 100 by ignoring some of the measurement results of the signal strength of the serving cell and the neighboring cell when the specific temperature is reached. It is a flowchart showing the operation process.

Referring to FIG. 13 , in the modem 270 of the electronic device 100 according to an embodiment of the present invention, in a state in which the temperature measured from the electronic device 100 reaches a preset specific temperature, the measurement received from the base station When the signal magnitude measurement condition according to the setting information is satisfied, the magnitude of the signal detected from the serving cell and neighboring cells of the electronic device 100 may be measured ( S1300 ).

When the signal level is measured in step S1300, the modem 270 may detect whether the measured signal level is measured from the serving cell (S1320). In addition, if the measured signal level is the signal level measured from the serving cell, it may be detected whether the measured signal level is greater than or equal to a preset threshold (S1340). Here, the threshold value may be a reference value for the base station to determine whether handover of the electronic device 100 is necessary, as in FIG. 12 .

On the other hand, as a result of the detection in step S1320, if the measured signal level is measured from a neighboring cell other than the serving cell, the modem 270 determines whether the neighboring cell from which the signal level is measured is a cell according to the same RAT as the serving cell. can be detected (S1330). And, as a result of the detection in step S1330, if the measured signal level is the signal level measured from a neighboring cell using the same RAT as the serving cell, the modem 270 proceeds to step S1340 and the measured signal level is the threshold value. It can be determined whether it is abnormal or not.

Meanwhile, as a result of the detection in step S1330, if the neighboring cell in which the signal level is measured does not use the same RAT as the serving cell, the modem 270 receives the measurement result including the measured signal level from the base station. It can be transmitted in response to the measurement setting information (S1350).

On the other hand, the signal magnitude measurement result of step S1310 is a measurement result from a serving cell or a neighbor cell using the same frequency range as the serving cell (a neighbor cell using the same RAT as the serving cell), and the measured signal magnitude is the When it is greater than or equal to a threshold value corresponding to a reference value for determining whether handover is necessary, the modem 270 may not report the measured signal level to the base station.

That is, when the temperature of the electronic device 100 reaches a predetermined specific temperature, the modem 270 determines that the signal level of the serving cell is greater than or equal to a specific threshold, or the signal level of a neighboring cell using the same frequency range as the serving cell. If is greater than or equal to a specific threshold, the measured signal magnitude may be ignored. On the other hand, when the signal level of the serving cell is less than a specific threshold or when the signal level of a neighboring cell that does not use the same frequency range as the serving cell is greater than or equal to a specific threshold, a signal level measurement result including the measured signal level is transmitted to the base station can be sent to

Then, the base station may determine that the current serving cell does not have a signal level suitable for providing the communication service of the electronic device 100 . In addition, as a result of measuring the signal strength of a neighboring cell using the same frequency range as the serving cell is also not transmitted to the base station, neighboring cells using the same frequency range as the serving cell also provide the communication service of the electronic device 100 . It may be determined that it does not have a signal level suitable for providing. Accordingly, the base station may determine that the electronic device 100 needs handover to another RAT in step S1105 of FIG. 11, and accordingly proceeds to step S1106 of FIG. can decide In addition, the electronic device 100 may be handed over to the cell of the other RAT through steps S1107 and S1108 of FIG. 11 .

Similarly, the cell of the other RAT includes a cell of another RAT of the same communication method (eg, a cell using a frequency of the Sub 6 band according to the 5G communication method) or a cell according to a different communication method (a cell according to the 4G frequency band) can include all of them.

On the other hand, as shown in FIG. 12 or 13, when handover is made to a cell of another RAT by changing or ignoring some of the signal magnitude measurement results, the frequency range according to the previous serving cell is used in the next signal magnitude measurement period. When the signal quality of the cell is excellent, the electronic device 100 may be handed over to the cell using the frequency range of the previous serving cell before the electronic device 100 is sufficiently cooled.

In order to prevent such a case from occurring, the modem 270 of the electronic device 100 according to an embodiment of the present invention is the current serving cell ( A state of using the RAT of the cell of the other RAT connected according to the handover may be maintained. That is, it is possible to prevent restoration to the RAT according to the previous serving cell.

To this end, the modem 270 of the electronic device 100 related to the present invention may selectively transmit the signal magnitude measurement result of the neighboring cell to the base station according to the temperature of the electronic device 100 . 14 is an electronic device 100 related to the present invention, after handover is performed according to an embodiment of the present invention, selectively transmits a signal magnitude measurement result of a neighboring cell to a base station, and RAT according to a previous serving cell It is a flowchart illustrating an operation process for preventing restoration to .

Referring to FIG. 14 , when handover of the electronic device 100 is performed according to the operation of FIG. 12 or FIG. 13 described above, the modem 270 receives measurement setting information for measuring the signal level from the base station of the currently connected serving cell. can be received (S1400). In addition, it may be detected whether a signal level measurement condition according to the received measurement setting information is satisfied (eg, a preset measurement period expires) (S1410).

As a result of the detection in step S1410, if the signal level measurement condition is satisfied, the modem 270 may measure the signal level of a cell located around the electronic device 100, that is, a neighboring cell (S1420). And when the measurement of the signal level is completed, the currently measured signal level is the same as the cell having the same frequency range as the serving cell before the handover according to the embodiment of the present invention, that is, the same RAT as the serving cell before the handover. It can be identified whether the signal level is measured from the cell (S1430). In this case, step S1430 may be a step of detecting a signal level measured from a cell having the same frequency range as the serving cell before the handover, among the signal levels measured from cells located around the electronic device 100 . .

As an example, if the electronic device 100 is handed over to a cell using a 4G frequency or a cell using a Sub 6 frequency as described with reference to FIGS. 12 and 13 while performing millimeter wave 5G communication, the modem ( 270) may identify whether the signal magnitude measured in step S1420 is measured from a cell using a millimeter wave band frequency.

Meanwhile, as a result of the identification in step S1430, if the signal level measured from the cell according to the same RAT as the serving cell before the handover is detected, the modem 270 determines whether the temperature of the electronic device 100 is below a preset second temperature. It can be detected whether or not (S1440). Here, the preset second temperature is a temperature for determining whether the electronic device 100 is sufficiently cooled. If the temperature of the electronic device 100 is equal to or less than the second temperature, the modem 270 operates the electronic device 100 ) of 5G communication can be determined to be recoverable. Accordingly, the modem 270 may transmit the measurement result including the measured signal magnitude to the base station (S1450).

Accordingly, if the signal size of a cell according to the same RAT as that of the serving cell before the handover is suitable for handover, the base station again uses another RAT, that is, the RAT before handover, based on the measurement result transmitted in step S1450. It can be determined that a handover to . Therefore, in step S1106 of FIG. 11, the cell of the RAT prior to the handover may be determined as the handover base station. In addition, through steps S1107 and S1108 of FIG. 11 , the electronic device 100 may be handed over to the cell of the RAT prior to the handover. Accordingly, restoration to the RAT used before the handover may be performed.

In this case, if the electronic device 100 is connected to a cell according to the 4G communication method through handover and provides a service in the 4G communication method, the base station may set the electronic device 100 to be connected to the 5G core network, Accordingly, handover of the electronic device 100 may be performed including a change in the core network.

On the other hand, if the temperature of the electronic device 100 exceeds the second temperature, the modem 270 may limit the restoration of 5G communication of the electronic device 100 . Therefore, the signal magnitude measured in step S1420 may be ignored. Then, the signal magnitude measured from cells having the same frequency range as the serving cell before the handover may be ignored and may not be transmitted to the base station.

On the other hand, if the temperature of the electronic device 100 exceeds the second temperature, the modem 270 may change the signal magnitude measured in step S1420 to be less than a preset threshold value. In this case, the measurement result including the signal magnitude changed to less than the threshold value may be transmitted to the base station. Therefore, the base station may determine that the signal quality of cells having the same frequency range as the serving cell before the handover is poor, and control the electronic device 100 to maintain the current RAT.

Meanwhile, in the above description, the process of inducing the handover of the electronic device by the base station by changing or ignoring the signal magnitude measurement result has been described. However, unlike this, handover to another RAT may be performed according to a direct request of the electronic device. is of course

For example, the modem 270 of the electronic device 100, when the temperature of the electronic device 100 reaches a preset specific temperature (a threshold temperature at which 5G communication is limited or a temperature lower than the threshold temperature by a predetermined temperature) It may transmit that the device 100 is in an abnormal state to the base station through an RRC (Radio Resource Control) message. In addition, depending on the abnormal state of the electronic device 100, a handover may be requested to either a cell of another RAT according to the 5G communication method or a cell (4G RAT) according to the 4G communication method.

In this case, the modem 270 may request that a cell of a specific RAT be more preferentially handed over to another cell according to a preset priority. For example, the modem 270 may set a higher priority for the RAT according to the same communication method as the currently used communication method among RATs using a lower frequency range than the frequency range currently used for wireless communication. . Therefore, if the electronic device 100 provides a 5G communication service through a frequency of the millimeter wave band, the frequency currently used according to the heat of the electronic device 100, that is, a frequency range lower than that of the millimeter wave band A higher priority may be set for the Sub 6 RAT that provides the 5G communication service among RATs using , that is, the Sub 6 RAT and the 4G RAT. Therefore, the base station may determine a handover base station with priority over a cell according to the Sub 6 RAT over a cell according to the 4G RAT.

Similarly, when the base station induces the handover of the electronic device by changing or ignoring the signal magnitude measurement result, a higher priority may be set for a specific RAT. For example, when the base station determines that the electronic device 100 needs handover to another RAT, RATs using a lower frequency range than the frequency range currently used in the RAT of the serving cell of the electronic device 100 Among them, the RAT capable of providing a communication service according to the same communication method as the communication method currently used by the electronic device 100 may be prioritized higher than that of other RATs. Therefore, if the electronic device 100 provides a 5G communication service through a frequency of the millimeter wave band, the base station uses a frequency range lower than the frequency of the millimeter wave band, that is, among RATs, that is, the Sub 6 RAT and the 4G RAT, 5G The cell of the Sub 6 RAT providing the communication service may be determined as the handover base station in preference to the cell according to the 4G RAT.

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

An antenna module for transmitting and receiving a wireless signal according to the first 5G communication method;

a temperature sensor detecting a temperature of the antenna module;

a signal strength measuring unit for measuring signal levels of a serving cell and a neighboring cell according to measurement configuration information provided from a base station; and

When the temperature of the antenna module is equal to or higher than the preset temperature, at least some of the signal strength measurement result of the serving cell and the signal strength measurement results of neighboring cells having the same frequency range as the serving cell are selected as a signal less than a preset threshold value. and a modem for transmitting a signal strength measurement result including the changed signal strength and the changed signal strength to the base station in response to the measurement setting information.
According to claim 1, wherein the preset temperature,

An electronic device, characterized in that it is a threshold temperature at which fallback from the electronic device to another RAT (Radio Access Technology) is performed according to a preset heat mitigation policy or a temperature lower by a predetermined temperature from the critical temperature.
According to claim 2, wherein the other RAT,

Electronic device, characterized in that the second 5G communication method or 4G communication method using a different frequency band from the 5G communication method.
According to claim 1, wherein the modem,

In response to a signal strength measurement result including the changed signal strength, handover information for handover of the electronic device is received from the base station, and handover to a cell according to another RAT based on the received handover information Electronic device, characterized in that to perform.
5. The method of claim 4, wherein the modem,

When the handover of the electronic device is made, the signal strength measurement result that does not include the signal strength measurement result for the cells according to the first 5G communication method until the temperature of the antenna module is lowered to a predetermined temperature or less, the Electronic device, characterized in that for transmitting to the base station in response to the measurement setting information.
According to claim 1, wherein the modem,

When the intensity of a signal received from the serving cell and neighboring cells having the same frequency range as the serving cell or the electric field intensity of a beam or signal measured from the serving cell is equal to or greater than the threshold value,

The electronic device of claim 1, wherein the signal strength measured from the serving cell and neighboring cells having the same frequency range as the serving cell is changed to be less than the threshold value.
According to claim 1, wherein the modem,

When the intensity of a signal received from the serving cell and neighboring cells having the same frequency range as the serving cell or the electric field intensity of a beam or signal measured from the serving cell is equal to or greater than the threshold value,

The electronic device, characterized in that transmitting a signal strength measurement result that does not include the signal strength measured from the serving cell and neighboring cells having the same frequency range as the serving cell to the base station.
According to claim 1, wherein the threshold value,

The electronic device, characterized in that the base station, the signal strength as a reference for determining whether the handover of the electronic device is necessary.
measuring the temperature of the electronic device;

measuring signal levels of cells adjacent to the electronic device according to measurement setting information provided from a base station;

detecting a signal measurement result of a serving cell and neighboring cells having the same frequency range as the serving cell when the temperature of the electronic device is equal to or higher than a preset temperature;

changing the signal magnitudes measured from the detected serving cell and neighboring cells to a signal magnitude less than the threshold when the detected signal magnitudes from the serving cell and neighboring cells are greater than or equal to a preset threshold; and,

and transmitting the signal magnitude measurement results of the changed serving cell and neighboring cells to the base station in response to the measurement setting information.
10. The method of claim 9,

In response to the changed signal magnitude measurement result, when information related to handover of the electronic device is received from the base station, handover to another RAT (Radio Access Technology) cell is performed according to the received handover related information Control method of an electronic device, characterized in that it further comprises the step.
11. The method of claim 10,

when handover to the other RAT is performed, measuring signal levels of other adjacent cells according to measurement configuration information received from the base station of the other RAT;

detecting a signal level measured from cells having the same frequency range as a serving cell before the handover among other adjacent cells in which the signal level is measured;

re-measuring the temperature of the electronic device;

detecting whether the re-measured temperature of the electronic device is less than or equal to a preset second temperature;

Based on whether the temperature of the electronic device is equal to or less than the second temperature, the received measurement setting is performed to obtain a signal magnitude measurement result including a signal magnitude measured from cells having the same frequency range as the serving cell before the handover. The method of controlling an electronic device, characterized in that it further comprises the step of transmitting in response to the information.
10. The method of claim 9,

The preset temperature is

A critical temperature at which fallback from the electronic device to another RAT (Radio Access Technology) is performed according to a preset heat mitigation policy or a temperature lower by a predetermined temperature from the critical temperature,

The other RAT is,

The control method of an electronic device, characterized in that the second 5G communication method or 4G communication method using a frequency band different from the 5G communication method.
10. The method of claim 9,

The threshold is

It is a signal level as a reference for the base station to determine whether handover of the electronic device is necessary,

The signal magnitude is

A control method of an electronic device, characterized in that it is the magnitude of a signal received from the base station of a cell or the electric field strength of a beam or signal detected from the base station of the cell.