WO2021045274A1

WO2021045274A1 - Electronic device and control method of same electronic device

Info

Publication number: WO2021045274A1
Application number: PCT/KR2019/011518
Authority: WO
Inventors: 김진주
Original assignee: 엘지전자 주식회사
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2021-03-11

Abstract

The present invention relates to an electronic device capable of both 4G communication and 5G communication, comprising: a first communication module which is capable of wireless communication with a first base station according to a first communication method; a temperature sensor which is provided in the first communication module, and senses the temperature of the first communication module; a second communication module which is capable of wireless communication with a second base station according to a second communication method; and a modem which sends a tracking area update (TAU) request message to the first base station according to the temperature sensed by the temperature sensor and updates the status of an electronic device related to the first communication method.

Description

Electronic device and control method of the electronic device

The present invention relates to an electronic device capable of both 4G communication and 5G communication.

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

In the case of an electronic device capable of simultaneously supporting 4G communication and 5G communication, it primarily connects to the 4G network and periodically searches for 5G base stations (cells). And when a 5G base station (cell) that satisfies a preset condition is searched, the searched 5G base station is added (5G cell add) and wireless communication is performed with the added 5G base station, so that the electronic device can be connected to the 4G network and the 5G network at the same time. To be able to.

In this case, a high-speed wireless communication service may be performed according to the NR communication technology, and stable wireless communication may be performed according to the LTE communication technology. Such a function that enables simultaneous connection to 4G and 5G networks is called DC (Dual Connectivity).

Meanwhile, in the case of such an electronic device supporting the DC function, it is connected to the 5G network in a place where a 5G network can be connected, and in a place where the 5G network is not connected, it can be connected to a base station through a 4G network to perform wireless communication.

However, in the case of 5G communication, there is an advantage in that the data transmission speed is performed at a high speed, but there is a problem that the temperature of a communication module performing 5G communication increases rapidly. Moreover, in the case of 5G communication using a frequency with a very fast wavelength such as mmWave, there is a problem that the temperature of the 5G communication module rises more rapidly.

Therefore, in order to prevent the risk of fire or burns, the electronic device measures the temperature of the 5G communication module when performing communication in the 5G method, and when the temperature is higher than a preset level, information indicating a heating situation and the electronic device are used. A message including information on the possible heat mitigation means is transmitted to the network. Then, the network, that is, the base station determines the heat generation state of the electronic device through the message received from the electronic device, and transmits one of the heat mitigation means that the electronic device can perform and connection setting information according to the electronic device, The electronic device can alleviate the heat generation situation through any one of the heat mitigation means.

However, when information about the heat generation situation is received from the electronic device, the operation of the base station to transmit the connection setting information related thereto to the base station is not a predefined obligation for the base station. May not be transmitted to the electronic device. In this case, the electronic device cannot obtain connection setting information that can alleviate heat generation, and in this case, if the 5G communication module is turned off to alleviate heat generation or to prevent heat generation, the communication connection with the base station is lost. There is a problem that it can be disconnected.

In addition, even when a connection setting is received from the base station for mitigation of heat, such as limiting the bandwidth from the base station or reducing the number of antennas used for communication (reduction in the number of MIMO (Multi Input Multi Output) layers), the electronic device generates heat Since the 5G communication to be maintained is continuously maintained, there is a problem in that the time required for the temperature of the 5G communication module to drop to a safe level becomes longer.

The present invention aims to solve the above-described problems and other problems, and an electronic device capable of more effectively mitigating heat generated by 5G wireless communication without disconnection of wireless communication, and the electronic device It is to provide a control method of.

In addition, according to the present invention, since the base station does not define a response to a message about the heating state of the electronic device as an obligation, the heat mitigation function of the electronic device is not performed when the base station is silent about the message indicating the heating state. This is to solve the problem that the base station cannot respond, and the heat mitigation function is performed through a function that is mandatory for the base station to respond. It is to provide a method of controlling the device.

According to an aspect of the present invention in order to achieve the above or other objects, an electronic device according to an embodiment of the present invention includes a first communication module capable of wireless communication with a first base station according to the first communication method, and the first communication module. 1 A temperature sensor provided in the communication module for detecting a temperature of the first communication module, and a second communication module capable of wireless communication with a second base station according to the second communication method, and detected from the temperature sensor. And a modem for updating a state of an electronic device related to the first communication method by transmitting a TAU (Tracking Area Update) request message to the first base station according to temperature.

In an embodiment, the modem transmits a TAU request message including status information of an electronic device indicating that communication according to the first communication method is impossible when the detected temperature is higher than a preset temperature. It characterized in that the transmission to.

In an embodiment, when a TAU request message including status information of an electronic device indicating that communication according to the first communication method is impossible is transmitted, the modem deactivates the first communication module, and It characterized in that it activates the 2 communication module.

In an embodiment, the modem receives connection setting information according to a communication method different from the currently used communication method according to the updated state of the electronic device, and is different from the currently connected base station according to the received connection setting information. It characterized in that it performs a communication connection to the base station.

In one embodiment, the modem, when the second communication module is activated, when the temperature detected by the temperature sensor is less than a preset temperature, the electronic device indicating that communication according to the first communication method is possible. A TAU request message including status information is transmitted to the second base station, and the second communication module is deactivated.

In an embodiment, the first communication method is a 5G communication method, and the second communication method is a 4G communication method.

In an embodiment, the first communication method is a communication method using an MMwave frequency band, and the second communication method is a communication method using a Sub-6 frequency band.

In an embodiment, a third communication module capable of wireless communication with a third base station according to a 4G communication method is further included, wherein the first communication module and the second communication module respectively include a first temperature sensor and a second temperature sensor. The modem includes state information of an electronic device indicating that communication using the mmWave frequency band is impossible when the temperature detected by the first temperature sensor is equal to or greater than a preset first temperature value, and the second Depending on whether the temperature detected by the temperature sensor is greater than or equal to the second temperature value, status information of the electronic device indicating that communication is possible or impossible according to the communication method using the Sub-6 frequency band or communication according to the 4G communication method A TAU request message further including at least one of the state information of the electronic device indicating that this is possible is transmitted to the first base station.

According to an aspect of the present invention in order to achieve the above or other objects, a method for controlling an electronic device according to an embodiment of the present invention includes performing wireless communication with a base station according to the first communication method through a first communication module. Including a first step, a second step of detecting a temperature of the first communication module, and status information indicating that provision of a communication service according to the first communication method is impossible when the detected temperature is higher than a preset temperature A third step of generating a tracking area update (TAU) request message, and a fourth step of updating state information of an electronic device related to the first communication method by transmitting the TAU request message to the first base station; and When the connection setting information for the communication connection according to the second communication method is received according to the updated state information of the electronic device, a fifth step of performing a communication connection with the second base station based on the received connection setting information is performed. It characterized in that it includes.

In an embodiment, a sixth step of detecting the temperature of the first communication module, and, when the detected temperature is less than a preset temperature, includes status information indicating that a communication service according to the first communication method can be provided. A seventh step of generating a TAU request message, and an eighth step of updating state information of an electronic device related to the first communication method by transmitting the TAU request message to the second base station, and the updated electronic device When the connection setting information for the communication connection according to the first communication method is received according to the state information of, a ninth step of performing a communication connection with the first base station based on the received connection setting information. It is done.

In an embodiment, the fourth step further includes a 4-1 step of deactivating the first communication module.

In an embodiment, the eighth step further includes step 8-1 of deactivating the second communication module.

The effects of the electronic device and the method for controlling the electronic device according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, the present invention detects a heating state of the electronic device and updates state information of the electronic device indicating whether 5G communication is possible according to the detected heating state. Therefore, the network identifies whether the electronic device is capable of 5G communication according to the updated status information, and transmits the connection setting information according to the 5G communication method or 4G communication method to the electronic device according to the identification result. And there is an effect that the execution can be made under the initiative of the electronic device.

1A is a block diagram illustrating an electronic device related to the present invention.

1B and 1C are exemplary views as viewed from different directions of an example of an electronic device related to the present invention.

2 is a block diagram illustrating a configuration of a wireless communication unit of an electronic device operable in a plurality of wireless communication systems according to an embodiment of the present invention.

3 is a block diagram showing in more detail each wireless communication module of the wireless communication unit shown in FIG. 2.

4 is a flowchart illustrating a process of registering state information indicating whether a first communication method of a terminal is possible when registering with a base station in an electronic device related to the present invention.

5 is a flowchart illustrating an operation process of updating state information according to a temperature of a first communication module when an electronic device related to the present invention performs wireless communication according to a first communication method.

6 is a flowchart illustrating an operation process of updating state information indicating whether a first communication method is possible according to a state of a first communication module internally in the electronic device related to the present invention.

7 is a flowchart illustrating an operation process of differently updating state information according to a temperature of a first communication module when an electronic device related to the present invention performs wireless communication according to a second communication method.

8 is a flowchart illustrating a process in which an electronic device and a base station related to the present invention update terminal status information according to a temperature detected by a first communication module and transmit connection setting information according to the updated terminal status information.

Hereinafter, exemplary embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but identical or similar elements are denoted by the same reference numerals regardless of reference numerals, and redundant descriptions thereof will be omitted. The suffixes "module" and "unit" for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of preparation of the specification, and do not have meanings or roles that are distinguished from each other by themselves. In addition, in describing the embodiments disclosed in the present specification, when it is determined that a detailed description of related known technologies may obscure the subject matter of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention It should be understood to include equivalents or substitutes.

Terms including ordinal numbers such as first and second 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 component.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

Electronic devices described herein include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistants (PDA), a portable multimedia player (PMP), a navigation system, and a slate PC. , Tablet PC (tablet PC), ultrabook (ultrabook), wearable device (wearable device, for example, smartwatch, glass-type terminal (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 the present specification may also be applied to fixed terminals such as digital TVs, desktop computers, and digital signage, except when applicable only to electronic devices. .

1A to 1C, FIG. 1A is a block diagram illustrating an electronic device related to the present invention, and FIGS. 1B and 1C are conceptual diagrams of an example of an electronic device related to the present disclosure viewed from different directions.

The electronic device 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, and a power supply unit 190. ) And the like. The components shown in FIG. 1A are not essential for implementing the electronic device, and thus the electronic device described in the present specification may have more or fewer components than the components listed above.

More specifically, among the components, the wireless communication unit 110 is, between the electronic device 100 and the wireless communication system, between the electronic device 100 and other electronic devices 100, or between the electronic device 100 and an external server. It may include one or more modules to enable wireless communication between. In addition, the wireless communication unit 110 may include one or more modules that connect 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.

The wireless communication unit 110 may include 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.

The 4G wireless communication module 111 may transmit and receive 4G base stations and 4G signals through a 4G mobile communication network. At this time, 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, an uplink (UL) multi-input multi-output (MIMO) may be performed by a plurality of 4G transmission signals transmitted to the 4G base station. In addition, a downlink (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 5G base stations and 5G signals 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 have a co-located structure disposed at the same location within a cell. Alternatively, the 5G base station may be disposed in a separate location from the 4G base station in a stand-alone (SA) structure.

The 5G wireless communication module 112 may transmit and receive 5G base stations and 5G signals through a 5G mobile communication network. At this time, 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 received 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. On the other hand, as the 5G frequency band, the Sub6 band, which is a band below 6GHz, 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, in a 5G communication system, a larger number of multiple input multiple outputs (MIMO) can be supported to improve transmission speed. In this regard, uplink (UL) MIMO may be performed by a plurality of 5G transmission signals transmitted to the 5G base station. In addition, downlink (DL) MIMO may be performed by a plurality of 5G reception signals received from the 5G base station.

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

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

The short range communication module 113 is for short range communication, and includes Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and NFC. Near field communication may be supported using at least one of (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technologies. Such, short-range communication module 114, between the electronic device 100 and the wireless communication system, the electronic device 100 and the other electronic device 100, or the electronic device 100 through a short-range wireless communication network (Wireless Area Networks). ) And other electronic devices 100, or an external server, may support wireless communication between a network. The local area wireless communication network may be a wireless personal area network (Wireless Personal Area Networks).

Meanwhile, short-range 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-range communication may be performed between electronic devices through a device-to-device (D2D) method without passing through a base station.

On the other hand, carrier aggregation (CA) using at least one of the 4G

wireless communication module

111 and 5G wireless communication module 112 and the Wi-Fi communication module 113 for transmission speed improvement and communication system convergence (convergence) 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 obtaining a location (or current location) of an electronic device, and representative examples thereof include a GPS (Global Positioning System) module or a WiFi (Wireless Fidelity) module. For example, if an electronic device utilizes a GPS module, the position of the electronic device may be obtained using a signal transmitted from a GPS satellite. As another example, when the electronic device utilizes the Wi-Fi module, the location of the electronic device may be obtained 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 115 may perform any function among other modules of the wireless communication unit 110 in order to obtain data on the location of the electronic device as a substitute or additionally. The location information module 115 is a module used to acquire the location (or current location) of the electronic device, and is not limited to a module that directly calculates or acquires 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 transmitting or receiving a wireless signal. In particular, since the 5G base station in the 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 unit 120 includes a camera 121 or an image input unit for inputting an image signal, a microphone 122 for inputting an audio signal, or an audio input unit, and a user input unit 123 for receiving information from a user, for example, , A touch key, a mechanical key, etc.). The voice data or image data collected by the input unit 120 may be analyzed and processed as a user's control command.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the electronic device, information on surrounding environments surrounding the electronic device, and user information. For example, the sensing unit 140 includes a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity. Sensor (G-sensor), gyroscope sensor (gyroscope sensor), motion sensor (motion sensor), RGB sensor, infrared sensor (IR sensor: infrared sensor), fingerprint sensor (finger scan sensor), ultrasonic sensor (ultrasonic sensor) , Optical sensor (for example, camera (see 121)), microphone (microphone, see 122), battery gauge, environmental sensor (for example, barometer, hygrometer, thermometer, radiation detection sensor, It may include at least one of a heat sensor, a gas sensor, etc.), and a chemical sensor (eg, an electronic nose, a healthcare sensor, a biometric sensor, etc.). 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 unit 150 is for generating an output related to visual, auditory or tactile sense, and includes at least one of a display unit 151, an audio output unit 152, a hap tip module 153, and a light output unit 154. can do. The display unit 151 may implement a touch screen by forming a layer structure or integrally with the touch sensor. Such a touch screen may function as a user input unit 123 that provides an input interface between the electronic device 100 and a user, and may provide an output interface between the electronic device 100 and the user.

The interface unit 160 serves as a passage for various types of external devices connected to the electronic device 100. The interface unit 160 connects a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, and a device equipped with an identification module. It may include at least one of a port, an audio input/output (I/O) port, an input/output (video I/O) port, and an earphone port. The electronic device 100 may perform appropriate control related to the connected external device in response to the connection of the external device to the interface unit 160.

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 by the electronic device 100, data for operation of the electronic device 100, and instructions. At least some of these application programs may be downloaded from an external server 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 of the electronic device 100 (eg, incoming calls, outgoing functions, message reception, and outgoing functions). Meanwhile, the application program may be stored in the memory 170, installed on the electronic device 100, and driven by the controller 180 to perform an operation (or function) of the electronic device.

In addition to the operation related to the application program, the controller 180 generally controls the overall operation of the electronic device 100. The controller 180 may provide or process appropriate information or functions to a 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.

Also, in order to drive an application program stored in the memory 170, the controller 180 may control at least some of the components discussed with reference to FIG. 1A. Furthermore, in order to drive the application program, the controller 180 may operate by combining at least two or more of the components included in the electronic device 100 with each other.

Hereinafter, the controller 180 that controls the overall operation of the electronic device will be referred to as the terminal controller 180.

The power supply unit 190 receives external power and internal power under the control of the terminal controller 180 and supplies power to each of the components included in the electronic device 100. The power supply unit 190 includes a battery, and the battery may be a built-in battery or a replaceable battery. Hereinafter, the power supply unit 190 for supplying power to each component included in the electronic device 100 will be referred to as a terminal power supply unit 190.

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.

1B and 1C, the disclosed electronic device 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can 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 relatively movably coupled, a flip type, a slide type, a swing type, and a swivel type. . Although it will relate to a specific type of electronic device, a description of a specific type of electronic device may be generally applied to other types of electronic devices.

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

In some cases, electronic components may be mounted on the rear case 102 as well. Electronic components that can be mounted on the rear case 102 include a detachable battery, an identification module, and a memory card. In this case, a 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. Meanwhile, some of the side surfaces of the rear case 102 may be implemented to operate as a radiator.

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

The electronic device 100 includes a display unit 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 sound output units.

Cameras

121a and 121b, first and second operation units 123a and 123b, microphone 122, interface unit 160, and the like may be provided.

The display unit 151 displays (outputs) information processed by the electronic device 100. For example, the display unit 151 may display execution screen information of an application program driven by the electronic device 100, or UI (User Interface) and GUI (Graphic User Interface) information according to such execution screen information. .

In addition, two or more display units 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 integrally disposed on one surface, or may be disposed on different surfaces, respectively.

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

As such, the display unit 151 may form a touch screen together with a touch sensor, and in this case, the touch screen may function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first manipulation 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 playback sounds. It can be implemented in the form of ).

The light output unit 154 is configured to output light for notifying when an event occurs. Examples of the event include message reception, call signal reception, missed call, alarm, schedule notification, e-mail reception, and information reception through an application. When the user's event confirmation is detected, the terminal controller 180 may control the light output unit 154 to terminate the output of light.

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

The first and second manipulation units 123a and 123b are an example of a user input unit 123 that is manipulated to receive a command for controlling the operation of the electronic device 100, and may also be collectively referred to as a manipulating portion. have. The first and second manipulation units 123a and 123b may be employed in any manner as long as the user operates while receiving a tactile feeling, such as touch, push, and scroll. In addition, the first and second manipulation units 123a and 123b may also be employed in a manner in which the first and second manipulation units 123a and 123b are manipulated without a user's tactile feeling through proximity touch, 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 terminal controller 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 unit 151 or the user input unit 123.

The microphone 122 is configured to receive a user's voice and other sounds. The microphone 122 may be provided at a plurality of locations and configured to receive stereo sound.

The interface unit 160 becomes a path through which the electronic device 100 can be connected to an external device. For example, the interface unit 160 is 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 at least one of a power supply terminal for supplying power to the electronic device 100. The interface unit 160 may be implemented in the form of a socket for accommodating an external card such as a Subscriber Identification Module (SIM) or a User Identity Module (UIM), or a memory card for storing information.

A second camera 121b may be disposed on the rear surface of the terminal body. In this case, the second camera 121b has a photographing direction substantially opposite to 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 format. 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 photographed in various ways using a plurality of lenses, and an image of better quality may be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. When a subject is photographed by the second camera 121b, the flash 124 illuminates light toward the subject.

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.

At least one antenna for wireless communication may be provided in the terminal body. The antenna may be embedded in the terminal body or may be formed in a 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 with four or more antennas 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 an electronic device.

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

Hereinafter, a structure of a multiplex transmission system according to the present invention and an electronic device having the same, in particular, a power amplifier in a heterogeneous radio system and embodiments related to an electronic device having the same will be described with reference to the accompanying drawings. It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention.

2 shows a configuration of a wireless communication unit of an electronic device operable in a plurality of wireless communication systems according to the present invention. Referring to FIG. 2, 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, an application processor (AP) 280, and a power supply unit 290.

Meanwhile, the modem 270 physically includes at least one of the first communication module (eg, 5G wireless communication module) 350 and the first communication module (eg, 4G wireless communication module) 360 and one physical chip. ) Can be implemented. When the first communication module 350 and the second communication module 360 are implemented as one modem (integrated modem), the integrated modem includes modulation/demodulation for transmitting and receiving 5G signals, and Both modulation/demodulation for transmitting and receiving 4G signals can be performed.

Alternatively, the modem 270 may be implemented integrally with any one of the first communication module 350 and the first communication module 360 (the first communication module 350 ). In this case, the other wireless communication module (the second communication module 360) may be implemented in the form of a chip physically separated from the modem. In this case, the modem basically performs modulation and demodulation according to the wireless communication method according to the first communication module 350, and may be connected to the second communication module 360 if necessary. In this case, the second communication module 360 may perform modulation and demodulation in a wireless communication method different from the modem, and accordingly, perform wireless communication with both the 4G base station and the 5G base station to provide a 4G wireless network and a 5G wireless network. It can be connected to (Dual Connectivity (DC)) at the same time.

Meanwhile, in the following description, for convenience of explanation, a case in which the modem 270 is implemented integrally with the 4G wireless communication module (the second communication module 360) will be described as an example. In this case, the first wireless communication module 350 may be implemented in the form of a chip physically separated from the modem 270. In this case, the modem 270 can basically provide a 4G wireless network service through the integrated 4G wireless communication module 360, and when the DC function is activated, the 5G wireless communication module is connected to the 5G wireless communication module 350. It is possible to simultaneously provide 5G wireless network service through (360).

Meanwhile, the power supply unit 290 may be connected to the modem 270 and the 5G wireless communication module 350. In addition, power required for driving the modem 270 and the 5G wireless communication module 350 may be supplied. The power supply unit 290 may be a battery of the electronic device 100 and may be a Power Management Integrated Circuit (PMIC) that supplies power supplied from the battery to each component.

Here, the modem 270 and the application processor (AP, 280) may be physically implemented on one chip, and may be logically and functionally separated. However, the present invention is not limited thereto and may be implemented in the form of a physically separated chip according to an application.

Meanwhile, the electronic device 100 includes a plurality of low noise amplifiers (LNAs) 261 to 264 in the receiving unit. 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. 2, 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 and has an 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 5G band and the 4G band have a large difference in bands, 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. In this way, when the RFIC 250 is configured as a 4G/5G separate type, there is an advantage in 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 may be logically and functionally separated, and may 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 application processor (AP, 280) may control the modem 270 through a power management IC (PMIC) for low power operation of an electronic device. Accordingly, the modem 270 may operate the power circuit of the transmitter and the receiver through the RFIC 250 in a low power mode.

In this regard, when it is determined that the electronic device 100 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, at least one of the first and

second power amplifiers

110 and 120 operates in a low power mode or is turned off through the modem 270 through the RFIC. 250 can be controlled.

According to another embodiment, when the electronic device is in a low power mode, the application processor (AP) 280 may control the modem 270 to provide wireless communication capable of low power communication. For example, when an 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, even though the throughput is slightly sacrificed, 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.

According to another embodiment, when the remaining battery power 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 data through both the 4G base station and the 5G base station according to the remaining battery capacity and available radio resource information. In this case, the application processor (AP) 280 may receive information on the remaining battery capacity from the PMIC and information on available radio resources from the modem 270. Accordingly, if the remaining battery capacity and available radio resources are sufficient, the application processor (AP, 280) may control the modem 270 and the RFIC 250 to receive data through both the 4G base station and the 5G base station.

Meanwhile, in the multi-transceiving system of FIG. 2, the transmitting unit and the receiving unit of each radio system may be integrated into a single transmitting/receiving unit. Accordingly, there is an advantage in that a circuit part that integrates two types of system signals can be removed from the RF front-end.

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

In addition, when the communication systems are separated, it is impossible to control other communication systems as necessary, or because a system delay is increased due to this, it is impossible to efficiently allocate resources. On the other hand, the multiple transmission/reception system as shown in FIG. 2 has the advantage of enabling efficient resource allocation since it is possible to control other communication systems as needed, and thereby minimize system delay.

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 communication system operates in the 4G band or the Sub6 band, the first and second power amplifiers 220 can operate in both the first and second communication systems.

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

second power amplifiers

210 and 220 may operate in a 4G band and the other may operate in a millimeter wave band. .

On the other hand, by integrating the transmitting and receiving unit and the receiving unit, it is possible to implement two different wireless communication systems with one antenna using a transmission/reception combined antenna. In this case, 4x4 MIMO can be implemented using 4 antennas as shown in FIG. 2. In this case, 4x4 DL MIMO may be performed through 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 can be implemented 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 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 with 1 Tx, only one of the first and

second power amplifiers

210 and 220 needs to operate in the 5G band. Meanwhile, when the 5G communication system is implemented with 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, a switch-type splitter or power divider is built into the RFIC corresponding to the RFIC 250, so that separate parts do not need to be placed outside, thereby improving component mounting performance. I can. Specifically, it is possible to select the transmission unit (TX) of two different communication systems by using a single pole double throw (SPDT) type switch inside the RFIC corresponding to the control unit 250.

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

The duplexer 231 is configured to separate signals in the transmission band and the reception band from each other. In this case, a signal of a transmission band transmitted through the first and

second power amplifiers

210 and 220 may be applied to the antennas ANT1 and ANT4 through the first output port of the duplexer 231. On the other hand, signals in the reception band received through the antennas ANT1 and ANT4 may be 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 in a transmission band or a reception band and block signals in the remaining bands. In this case, the filter 232 may include a transmission filter connected to the first output port of the duplexer 231 and a reception filter connected to the second output port of the duplexer 231. Alternatively, the filter 232 may be configured to pass only the signal of the transmission band or only the signal of the reception band according to the control signal.

The switch 233 is configured to transmit only either a transmission signal or a reception signal. In an embodiment of the present invention, the switch 233 may be configured in the form of a single pole double throw (SPDT) to separate a transmission signal and a reception signal in a time division multiplexing (TDD) scheme. 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.

Meanwhile, in another embodiment of the present invention, the switch 233 is applicable to a frequency division multiplexing (FDD) scheme. In this case, the switch 233 may be configured in the form of a Double Pole Double Throw (DPDT) so as to connect or block a transmission signal and a reception signal, respectively. On the other hand, since the transmission signal and the reception signal can be separated by the duplexer 231, the switch 233 is not necessarily required.

Meanwhile, the electronic device according to the present invention may further include a modem 270 corresponding to a control unit. In this case, the RFIC 250 and the modem 270 may be referred to as a first control unit (or a first processor) and a second control unit (a 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 logically or functionally divided into one circuit.

The modem 270 may perform control and signal processing 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 a 4G base station and/or a 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 through the first communication system and/or the second communication system at 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. In addition, the RFIC 250 may control receiving circuits including the first to fourth low noise amplifiers 261 to 264 to receive 4G signals or 5G signals in a specific time period.

Meanwhile, FIG. 3 is a block diagram showing in more detail each wireless communication module of the wireless communication unit shown in FIG. 2.

The wireless communication unit of the electronic device 100 according to an embodiment of the present invention may include two or more power amplifiers as shown in 2T4R of FIG. 2. However, for simplicity of explanation, it is assumed that multiplex transmission is performed when two power amplifiers are provided as shown in FIG. 3. However, it is not limited to such a structure, and it is of course possible to have more power amplifiers or a greater number of communication systems depending on the application.

Referring to FIG. 3, the wireless communication unit of the electronic device 100 includes a first power amplifier 310, a first low noise amplifier 312, a second power amplifier 300, a second low noise amplifier 302, and a modem 270. ), a 5G wireless communication module 112 and a power supply unit 290.

Here, the modem 270 may include a first communication module 350 capable of operating in a 5G communication system and a second communication module 360 operating in a 4G communication system. In addition, the first communication module 350 and the modem 270 may be physically separated or may be physically implemented in a structure that is functionally separated in one chip. However, the present invention is not limited thereto, and the modem 270 may be integrally formed including the first communication module 350 and the second communication module 360.

In addition, the first power amplifier 310 and the first low-noise amplifier 312 may operate in a first communication system, and the second power amplifier 300 and the second low-noise amplifier 302 may operate in a second communication system. In this case, the first and second communication systems may be a 5G communication system and a 4G communication system, respectively, but are not limited thereto.

Meanwhile, the modem 270 and the first communication module 350 may be electrically connected. In addition, the first communication module 350 may perform modulation/demodulation for transmission or reception of 5G signals under the control of the modem 270. In this case, the modem 270 may control the operation state (eg, activation or deactivation) of the second communication module 360.

For example, the modem 270 may receive data through both the 4G base station and the 5G base station according to the result of detecting the operation state of the electronic device 100 detected by the application processor (AP, 280). ) Can be controlled. In this case, the modem 270 may activate the first communication module 350, and the activated first communication module 350 connects a 5G base station (cell) that satisfies a preset condition from the vicinity of the electronic device 100. By searching, adding the searched 5G base station (5G Cell ADD) and performing wireless communication, it is possible to provide a service through a 5G network. In this case, the electronic device 100 may operate in a Non Stand Alone (NSA) method that can be connected (DC) to both a 4G network and a 5G network.

On the other hand, the modem 270 may deactivate the first communication module 350 according to a result of detecting the operation state of the electronic device 100. In this case, the modem 270 may cause the first communication module 350 to operate in a low power mode.

Meanwhile, the first communication module 350 switched to the low power mode may not search for a 5G base station. Then, a 5G base station may be added (5G Cell ADD) and wireless communication with the searched 5G base station may not be performed. Accordingly, the electronic device 100 performs wireless communication only with the 4G base station through the second communication module 360. State, that is, it can operate in the SA (Stand Alone) method connected only to the 4G network.

Meanwhile, the power supply unit 290 may supply power required for driving the modem 270 and the first communication module 350. Here, the power supply unit 290 may control the current supplied to the first communication module 350 under the control of the modem 270. In this case, the modem 270 may deactivate the first communication module 350 by controlling the power supply 290 to supply a current less than a preset threshold to the first communication module 350.

For example, when the current supplied from the power supply unit 290 is equal to or greater than a preset threshold, the first communication module 350 may operate in a normal operation mode. Then, the first communication module 350 may search for a 5G base station (cell), add the searched 5G base station (5G Cell ADD), and perform wireless communication. Accordingly, the electronic device 100 may operate in a Non Stand Alone (NSA) method that is connected (DC) to both a 4G network and a 5G network.

On the other hand, when the current supplied from the power supply unit 290 is less than a preset threshold, the first communication module 350 may operate in a low power mode. Then, the first communication module 350 may stop searching for a 5G base station (cell). Accordingly, the electronic device 100 can operate in a state in which wireless communication is performed only with a 4G base station, that is, a stand alone (SA) method that is connected only to a 4G network.

Meanwhile, the first communication module 350 may include a temperature sensor 370. The temperature sensor 370 may detect the temperature of the first communication module 350 and transmit the detected temperature to the modem 270. Accordingly, the modem 270 may detect the temperature of the first communication module 350 based on the temperature value detected from the temperature sensor 370.

Meanwhile, in FIG. 3, a configuration in which the temperature sensor 370 is provided in the first communication module 350 is disclosed, but the temperature sensor 370 is a first power amplifier that amplifies a signal to be transmitted according to a first communication method. 310) Alternatively, it may be provided in at least one of the first low noise amplifier 312 that amplifies a signal received according to the first communication method. In this case, the temperature of the first communication module 350 may be a temperature detected by the first power amplifier 310 or the first low noise amplifier 312.

Meanwhile, in the following description, specific operations and functions of the electronic device according to the present invention including the multiple transmission/reception system as shown in FIGS. 2 and 3 will be described.

4 is a flowchart illustrating a process of registering terminal state information indicating whether a first communication method of a terminal is possible when registering with a base station in an electronic device related to the present invention.

Referring to FIG. 4, the modem 270 of an electronic device according to an embodiment of the present invention first determines whether a 4G cell is accessible through system information block (SIB) information received from an envolved node B (eNB). Check the information required for connection. The modem 270 may identify that there is a 5G cell around the 4G cell according to the location of the electronic device 1 by referring to the upperlayerIndication IE of the 4G SIB information. When the value of the upperlayerIndication IE is true, the modem 270 checks the state of the 5G communication module, that is, the first communication module 350, and if the first communication module 350 is in the power off state, the power supply Can be authorized.

Meanwhile, the modem 270 may first register in the 4G network. When registering a 4G network, the modem 270 may transmit to the network whether or not various functions supported by the electronic device 100 are supported. This can be divided into two types: items delivered to the mobility management entity (MME) of the network and items delivered to the base station (eNB, 400).

Meanwhile, the base station 400 may check whether the electronic device 100 supports a function of the electronic device corresponding to each radio access technology (RAT). After receiving this, the electronic device 100 may check the state of the first communication module (5G communication module) if 5G (NR) is included in the corresponding RAT.

At this time, if the first communication module 350 is in a deactivated state for reasons other than heat generation, the first communication module 350 may be activated. And when the first communication module 350 is activated, it receives a list of available 4G and 5G frequency bands from the network (connection setting information) and verifies a supported ENDC band combination based on this.

In addition, the modem 270 transmits the information on the verified band combination to the 4G base station by loading the UECapabilityInformation message. Thereafter, the 4G base station may store state information of the electronic device 100 on whether 5G communication is possible based on the capability information, that is, information included in the UECapabilityInformation message. In addition, according to the stored state information of the electronic device, that is, capability information, it is possible to determine whether the electronic device 100 is in a state in which 5G communication is possible or not, and transmit NR connection setting information to the electronic device 100. Then, the modem 270 searches for a 5G cell (5G base station) according to the received NR connection setting information, adds the searched 5G cell, and performs 5G wireless communication by connecting with the 5G cell found through the first communication module 350. can do.

5 is a diagram illustrating an operation process of updating state information of the electronic device related to the first communication method according to the temperature of the first communication module when the electronic device related to the present invention performs wireless communication according to the first communication method. This is a flow chart.

Referring to FIG. 5, the modem 270 of the electronic device 100 according to an embodiment of the present invention may first detect the temperature of the first communication module 350 (S500 ). In addition, the detected temperature of the first communication module 350 and a preset temperature may be compared (S502).

As a result of the comparison in step S502, if the temperature of the first communication module 350 is less than the preset temperature, the modem 270 may proceed to step S500 again to re-detect the temperature of the first communication module. However, as a result of the comparison in step S502, if the temperature of the first communication module 350 is equal to or higher than a preset temperature, the modem 270 may generate status information indicating that communication according to the first communication method is impossible (S504). .

For example, the state information of the electronic device 100 may be capability information included in the UECapabilityInformation message, and by entering '0' as the value of the capability information, the electronic device 100 communicates according to the first communication method. This can indicate the impossibility.

Meanwhile, when state information indicating that communication according to the first communication method is impossible is generated in step S504, the modem 270 may check the state of the second communication module 360. In addition, if the second communication module 360 is in an inactive state (eg, a state driven in a low power mode), the second communication module 360 may be changed to an active state (eg, a state driven in a normal operation mode). have. As described above, by first activating the second communication module before deactivating the first communication module, a communication disconnection occurs while the communication method is changed from the first communication method to the second communication method according to the heating state of the first communication module. Can be prevented.

Meanwhile, in step S504, when status information indicating that communication according to the first communication method is impossible is generated, the modem 270 may transmit the generated status information to the network, that is, the base station. Here, the status information may be a message including a value '0' of a capability parameter indicating whether or not a service is available according to the first communication method according to a Tracking Area Update (TAU) procedure. That is, the message including the state information of the electronic device 100 may be a message according to the TAU request procedure, that is, a TAU request message.

Then, the base station may update the state of the electronic device 100 related to the first communication method according to the state information included in the received TAU request message (S508).

Accordingly, when the temperature of the first communication module 350 is equal to or higher than a preset temperature, state information of the electronic device 100 stored in the base station may be updated. Then, the base station, that is, the network, may determine that the electronic device 100 is in a state in which communication according to the first communication method is impossible according to the updated state of the electronic device, and wireless communication is performed according to a communication method different from the first communication method. Connection setting information to be performed may be transmitted to the electronic device 100.

Meanwhile, the first communication method may be a 5G communication method. In this case, as described above, if the electronic device 100 according to the embodiment of the present invention is capable of both 4G type wireless communication and 5G type wireless communication (NSA), the second communication method may be a 4G communication method. have. In this case, the connection setting information transmitted from the network according to the state information update of the electronic device 100 may be information for performing wireless communication in a 4G communication method, information related to a base station, information on a usable 4G frequency band, It may include information such as expandable bandwidth (CA, Carrier Aggregation).

Meanwhile, when connection setting information is received from the network, the modem 270 may perform wireless connection according to the received connection setting information. In this case, communication may be connected to the base station according to the second communication method (S510). In addition, when wireless communication is performed through the base station according to the second communication method, the modem 270 may cool the first communication module by switching the first communication module 350 to an inactive state (S512).

Referring to FIG. 6, a 5G Radio Resource Control (RRC) 600 instructed to control heat from an AP 280 or a modem 270 transitions a 5G communication service state to an INACTIVE state. Thereafter, this is notified to the 4G Radio Resource Control (RRC) 610 and the 5G-related state information (capability) of the electronic device 100 managed by the 4G RRC 610 is updated to an off state.

The 4G RRC 610 informs the 4G Non-Access Stratum (NAS) 620 that it is necessary to update the status information (capability) of the electronic device 100, and the 4G NAS 620 starts the TAU process. At this time, UE radio capability information update needed IE can be set to 1 and transmitted to a network, that is, a base station (eg, eNB).

Meanwhile, FIG. 7 is an operation process of differently updating state information of the electronic device related to the first communication method according to the temperature of the first communication module when the electronic device related to the present invention performs wireless communication according to the second communication method. Is a flow chart showing.

Referring to FIG. 7, the modem 270 of the electronic device 100 according to an embodiment of the present invention may first detect the temperature of the first communication module 350 (S700 ). In addition, the detected temperature of the first communication module 350 and a preset temperature may be compared (S702).

As a result of the comparison in step S702, if the temperature of the first communication module 350 is equal to or higher than the preset temperature, the modem 270 may proceed to step S700 again to re-detect the temperature of the first communication module.

However, as a result of the comparison in step S702, if the temperature of the first communication module 350 is less than a preset temperature, the modem 270 may generate status information indicating that communication according to the first communication method is possible (S704).

For example, the state information of the electronic device 100 may be capability information included in the UECapabilityInformation message. In this case, the modem 270 may input '1' as the value of the capability information to indicate that the electronic device 100 can communicate according to the first communication method.

Meanwhile, when status information indicating that communication according to the first communication method is possible is generated in step S704, the modem 270 activates the first communication module 350 in an inactive state (e.g., driven in a normal operation mode). State). As described above, by first activating the first communication module before deactivating the second communication module, it is possible to prevent a case in which a communication disconnection occurs while the communication method is changed from the second communication method to the first communication method.

Meanwhile, in step S704, when status information indicating that communication according to the first communication method is possible is generated, the modem 270 may transmit the generated status information to the base station. Here, the status information may be a TAU request message including a value '1' of a capability parameter indicating whether or not a service is available according to the first communication method according to a TAU procedure. Then, the base station may update the state of the electronic device 100 related to the first communication method according to the received state information (S708).

Therefore, when the temperature of the first communication module 350 is cooled below a preset temperature due to deactivation, the modem 270 is in a state in which the service according to the first communication method is available, and the state of the electronic device 100 stored in the base station. Information can be updated. Then, the base station, that is, the network, can determine that the electronic device 100 is in a state in which communication according to the first communication method is possible according to the updated state of the electronic device, so that wireless communication can be performed according to the first communication method. Connection setting information according to the first communication method may be transmitted to the electronic device 100.

Meanwhile, the first communication method may be a 5G communication method. In this case, the connection setting information according to the first communication method may include information on adjacent 5G base stations or usable 5G frequency bands and bandwidths. Then, the modem 270 may perform a communication connection to the base station according to the first communication method according to the received connection setting information (S710). In this case, the modem 270 may switch the second communication module 360 to an inactive state in order to reduce power consumption (S712).

First, the modem 270 of the electronic device 100 is instructed to control heat from the AP 280 or the modem 270, and the first communication module 350 increases the temperature of the first communication module 350 more quickly until the heat is released. In order to lower it, the use of the first communication module 350 may be temporarily stopped. In this case, the modem 270 may perform a series of processes through the network in order to notify the network that the first communication method, that is, the capability of the electronic device 100 related to 5G communication, has been updated. This may follow the TAU (Tracking Area Update) procedure specified in 3GPP specification TS24.301.

The TAU (TRACKING AREA UPDATE) request message according to the TAU procedure may be transmitted from the electronic device 100 to the MME via the base station. When the UE radio capability information update needed is included in the TAU request message, the MME may delete the previously stored state information of the electronic device 100, that is, capability information.

Then, in order to update the capability of the electronic device 100, a message requesting whether or not 5G communication is possible to the electronic device 100, that is, the NR capability, is received by the electronic device 100, and the electronic device 100 responds to the 5G communication. Status information (capability) including a value '0 (zero)' indicating that communication service is impossible may be transmitted. Then, the network identifies that the electronic device 100 is unable to provide a 5G communication service, and does not transmit connection settings for 5G communication until the state information (capability) of the electronic device is changed.

Referring to FIG. 8, the electronic device 100 may first detect the temperature of the first communication module 350 (S800 ). In addition, it may be determined whether or not a communication service according to the first communication method can be provided according to the temperature of the first communication module. In addition, a message including status information indicating whether communication according to the first communication method is possible may be generated according to the determination result (S802).

For example, if the electronic device 100 currently provides a communication service according to the first communication method, a state indicating that communication service according to the first communication method is impossible according to the detected temperature of the first communication module You can create a message containing information. However, if the electronic device 100 provides a communication service according to the second communication method, the modem 270 indicates that the communication service according to the first communication method is possible according to the detected temperature of the first communication module. You can create a message including status information.

In addition, the generated message may be transmitted to the base station 800 through the network according to the TAU procedure. Then, the base station 800 may update the state information of the electronic device 100 related to the first communication method based on the state information of the electronic device 100 included in the received message (S806).

Then, the modem 270 may generate connection setting information according to a communication method that can be used by the electronic device 100 according to the updated state information of the electronic device 100 (S808). For example, if the state of the electronic device 100 updated in step S806 is updated to a state in which communication service according to the first communication method is not available, the base station 800 may use a communication method other than the first communication method. As a result, connection setting information that enables the electronic device 100 to connect wireless communication may be generated. Accordingly, the base station 800 may generate connection setting information according to the second communication method so that the electronic device 100 can perform wireless communication according to the second communication method in step S808.

On the other hand, if the state of the electronic device 100 updated in step S806 is updated to an available state from a state in which the communication service according to the first communication method is not possible, the base station 800 is Accordingly, the electronic device 100 may generate connection setting information for reconnecting wireless communication through the first communication method in step S808.

Meanwhile, the connection setting information generated in step S808 may be transmitted from the base station 800 to the electronic device 100 through a network (S810). Then, the modem 270 may perform a wireless connection according to the received connection setting information (S812). For example, if the received connection setting information is connection setting information according to the first communication method, the modem 270 may perform communication connection with the base station according to the first communication method in step S812. On the other hand, if the received connection setting information is connection setting information according to the second communication method, the modem 270 may perform communication connection with the base station according to the second communication method in step S812.

Meanwhile, in the above description, the first communication method may mean a 5G communication method. That is, the base station according to the first communication method may mean a 5G cell. Also, the second communication method may mean a 4G communication method. In this case, the base station according to the second communication method may mean 4G Cell.

Alternatively, in the above description, the first communication method and the second communication method may mean 5G communication methods having different frequency bands. In this case, the first communication method may be a 5G communication method using the mmWave frequency band, and the second communication method may be a 5G communication method using the Sub 6 frequency band. Accordingly, the base station according to the first communication method may refer to a 5G cell using the mmWave frequency band, and the base station according to the second communication method may refer to a 5G cell using the Sub 6 frequency band.

Meanwhile, in the above description, it has been described as an example that the electronic device 100 according to the embodiment of the present invention includes the first communication module 350 and the second communication module 360, but this helps understanding of the present invention. It is only an example that is assumed for the purpose, and of course the present invention is not limited thereto. For example, the electronic device 100 may include a first communication module and a second communication module as well as a third communication module that enables wireless communication according to a communication method different from the first communication method and the second communication method.

In this case, the first communication module may be a 5G communication module that performs wireless communication according to the mmWave frequency band. In addition, the second communication module may be a 5G communication module that performs wireless communication according to the Sub 6 frequency band. Also, the third communication module may be a 4G communication module that performs 4G wireless communication.

Meanwhile, in the case of an electronic device including three communication modules as described above, a temperature sensor may be included in each of the first communication module and the second communication module. And the modem of the electronic device, based on the temperature values sensed from each of the first communication module and the second communication module, whether the electronic device can provide a communication service according to the mmWave frequency band, communication according to the Sub 6 frequency band. It can be determined whether a service can be provided or whether it is impossible to provide a communication service according to both the mmWave frequency band and the Sub 6 frequency band.

For example, if the measured value of the temperature sensor provided in the first communication module is equal to or greater than the first temperature value, the modem may determine that it is impossible to provide a communication service according to the mmWave frequency band. In addition, if the measured value of the temperature sensor provided in the first communication module is equal to or greater than the second temperature value, it may be determined that it is impossible to provide a communication service according to the Sub 6 frequency band. Here, the first temperature value may be a value lower than the second temperature value.

That is, the modem of the electronic device, while providing a communication service according to the mmWave frequency band, the measured value of the temperature sensor provided in the first communication module is equal to or greater than the first temperature value, and is provided in the second communication module. If the measured value of the temperature sensor is less than the second temperature value, the modem 270 transmits status information to the base station indicating that the communication service according to the mmWave frequency band cannot be provided and that communication service according to the Sub 6 frequency band is available. Can be transmitted. Then, the base station may update the state information of the electronic device according to the received state information, and transmit connection setting information according to a communication method using the Sub 6 frequency to the electronic device. Then, the modem of the electronic device can perform wireless communication by being connected to the base station using the Sub 6 frequency according to the received connection setting information.

Meanwhile, while providing a communication service according to the Sub 6 frequency band, the measured value of the temperature sensor provided in the first communication module is greater than or equal to the first temperature value, and the measured value of the temperature sensor provided in the second communication module is zero. If the temperature is equal to or higher than 2, the modem 270 may transmit status information to the base station indicating that it is impossible to provide both the communication service according to the mmWave frequency band and the communication service according to the Sub 6 frequency band. Then, the base station may update the state information of the electronic device according to the received state information, and transmit connection setting information according to the 4G communication method to the electronic device. Then, the modem of the electronic device can perform wireless communication by being connected to the 4G base station according to the received connection setting information.

On the other hand, while providing the communication service according to the Sub 6 frequency band, if the measured value of the temperature sensor provided in the first communication module is lower than the first temperature value, the modem is not able to provide the communication service according to the mmWave frequency band. Status information indicating possible may be transmitted to the base station. Then, the base station may update the state information of the electronic device according to the received state information, and transmit connection setting information according to a communication method using the mmWave frequency to the electronic device. Then, the modem of the electronic device can perform wireless communication by being connected to the base station using the mmWave frequency according to the received connection setting information.

Meanwhile, in the above description, a configuration in which the modem 270 detects the temperature of the first communication module and transmits a TAU request message for updating the state information of the electronic device according to the detected temperature is disclosed. It goes without saying that it may be performed not by the modem 270 but by the AP 280 or the controller 180 performing overall control of the electronic device 100.

The present invention described above can be implemented as a computer-readable code on a medium on which a program is recorded. The computer-readable medium includes all types of recording devices that store data that can be read by a computer system. Examples of computer-readable media include hard disk drives (HDDs), solid state disks (SSDs), silicon disk drives (SDDs), ROMs, RAM, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, etc. There is also a carrier wave (for example, transmission over the Internet) also includes the implementation of the form. In addition, the computer may include the control unit 180 of the terminal. Therefore, the detailed description above should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims

In an electronic device that performs NSA (Non Satand Alone) communication according to a first communication method and a second communication method,

A first communication module capable of wireless communication with a first base station according to the first communication method;

A temperature sensor provided in the first communication module and detecting a temperature of the first communication module;

And a second communication module capable of wireless communication with a second base station according to the second communication method,

And a modem for updating a state of the electronic device related to the first communication method by transmitting a TAU (Tracking Area Update) request message to the first base station according to the temperature detected by the temperature sensor. .
The method of claim 1, wherein the modem,

And transmitting a TAU request message including status information of the electronic device indicating that communication according to the first communication method is impossible to the first base station when the detected temperature is greater than or equal to a preset temperature.
The method of claim 2, wherein the modem,

Receiving connection setting information according to a communication method different from the currently used communication method according to the updated state of the electronic device, and performing communication connection between the currently connected base station and another base station according to the received connection setting information. Electronic devices.
The method of claim 1, wherein the modem,

And receiving connection setting information according to a communication method different from a communication method currently in use according to the updated state of the electronic device, and connecting communication with the second base station according to the received connection setting information.
The method of claim 2, wherein the modem,

When the second communication module is activated and the temperature detected by the temperature sensor is less than a preset temperature, a TAU request message including status information of an electronic device indicating that communication according to the first communication method is possible is sent to the An electronic device comprising transmitting to a second base station and deactivating the second communication module.
The method of claim 1,

The first communication method is a 5G communication method,

The second communication method is an electronic device, characterized in that the 4G communication method.
The method of claim 1,

The first communication method is a communication method using an MMwave frequency band,

The second communication method is an electronic device, characterized in that the communication method using the Sub-6 frequency band.
The method of claim 7,

Further comprising a third communication module capable of wireless communication with a third base station according to the 4G communication method,

The first communication module and the second communication module each include a first temperature sensor and a second temperature sensor,

The modem,

When the temperature detected by the first temperature sensor is greater than or equal to a preset first temperature value, it includes state information of an electronic device indicating that communication using the mmWave frequency band is impossible,

Depending on whether the temperature detected by the second temperature sensor is higher than or equal to the second temperature value, status information of an electronic device indicating that communication is possible or impossible according to a communication method using the Sub-6 frequency band or the 4G communication method And transmitting a TAU request message further including at least one of state information of the electronic device indicating that communication is possible to the first base station.
In the control method of an electronic device performing NSA (Non Satand Alone) communication according to a first communication method and a second communication method,

A first step of performing wireless communication with a base station according to the first communication method through a first communication module;

A second step of detecting the temperature of the first communication module;

A third step of generating a Tracking Area Update (TAU) request message including status information indicating that provision of a communication service according to the first communication method is impossible when the detected temperature is higher than a preset temperature;

A fourth step of transmitting the TAU request message to the first base station to update state information of the electronic device related to the first communication method; And,

When the connection setting information for the communication connection according to the second communication method is received according to the updated state information of the electronic device, a fifth step of performing a communication connection with the second base station based on the received connection setting information is performed. Control method of an electronic device comprising a.
The method of claim 9,

A sixth step of detecting the temperature of the first communication module;

A seventh step of generating a TAU request message including status information indicating that provision of a communication service according to the first communication method is possible when the detected temperature is less than a preset temperature;

An eighth step of transmitting the TAU request message to the second base station to update state information of the electronic device related to the first communication method; And,

When the connection setting information for the communication connection according to the first communication method is received according to the updated state information of the electronic device, a ninth step of performing a communication connection with the first base station based on the received connection setting information is performed. Control method of an electronic device, characterized in that it further comprises.
The method of claim 9, wherein the fourth step,

4-1 step of deactivating the first communication module.
The method of claim 10, wherein the eighth step,

8-1 step of deactivating the second communication module.