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WO2021045249A1 - Dispositif électronique prenant en charge une atténuation thermique et son procédé de commande - Google Patents

Dispositif électronique prenant en charge une atténuation thermique et son procédé de commande Download PDF

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Publication number
WO2021045249A1
WO2021045249A1 PCT/KR2019/011385 KR2019011385W WO2021045249A1 WO 2021045249 A1 WO2021045249 A1 WO 2021045249A1 KR 2019011385 W KR2019011385 W KR 2019011385W WO 2021045249 A1 WO2021045249 A1 WO 2021045249A1
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WO
WIPO (PCT)
Prior art keywords
antenna module
wireless communication
antenna
base station
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2019/011385
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English (en)
Korean (ko)
Inventor
강영희
김인경
심용보
원동수
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
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LG Electronics Inc
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Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to PCT/KR2019/011385 priority Critical patent/WO2021045249A1/fr
Publication of WO2021045249A1 publication Critical patent/WO2021045249A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones

Definitions

  • the present invention relates to an electronic device supporting 5G communication, and in more detail, an electronic device capable of effectively mitigating heat generated from the electronic device and minimizing data throughput loss, and a method for controlling the electronic device It is about.
  • LTE communication technology Recently, various electronic devices, including electronic devices, have commercialized wireless communication systems using LTE communication technology to provide various services.
  • wireless communication systems using 5G communication technology are expected to be commercialized and provide various services. Meanwhile, some of the LTE frequency bands may be allocated to provide 5G communication services.
  • the electronic device includes a plurality of antenna modules, and a higher voltage is applied to the plurality of antenna modules to enable high-speed wireless data communication.
  • mmWave millimeter wave
  • PA power amplifier
  • heat mitigation is only performed according to a fixed order (switching to another mmWave module after decreasing the number of antennas, then turning off mmWave communication) according to the temperature of the antenna module. Since the control is performed, there is a problem in that unnecessary operation state transition occurs, and the data throughput is rather lowered by maintaining the mmWave method as much as possible even though the mmWave communication method is not suitable.
  • wireless communication is performed using 4G (ex.LTE, Long Term Evolution) method compared to the case of performing wireless communication using the millimeter wave (mmWave) communication method while the gain is greatly reduced by using a small number of antennas.
  • 4G extended LTE, Long Term Evolution
  • mmWave millimeter wave
  • the present invention aims to solve the above and other problems, and when the antenna module exceeds a preset temperature while performing millimeter wave (mmWave) communication, the operating state having the highest data throughput or wireless communication It is to provide an electronic device capable of performing wireless communication according to a method and a method of controlling the electronic device.
  • mmWave millimeter wave
  • an electronic device in order to achieve the above or other objects, includes a plurality of first antenna modules capable of wireless communication with a base station according to a first communication method, and the plurality of A plurality of temperature sensors provided in each of the antenna modules and detecting a temperature of each antenna module, a second antenna module performing wireless communication with the base station through a second communication method different from the first communication method, and the plurality of Of the first antenna modules of, when the temperature of the first first antenna module performing wireless communication with the base station reaches a preset first temperature, a first antenna module other than the first antenna module and the second antenna module Calculate data throughputs for each antenna module, and switch the antenna module performing wireless communication with the base station with one of the other first antenna module or the second antenna module based on the calculated data throughput It characterized in that it comprises a control unit.
  • the data throughput is the number of transmittable information per modulated wave according to the number of antennas available for different channels in each antenna module, a size of a bandwidth, and a modulation method applied to each antenna module. It characterized in that it is determined according to.
  • the first communication method is a 5G communication method, a method of performing wireless communication with the base station using mmWave, and the second communication method is a 5G communication method, and Sub It is characterized in that it is a method of performing wireless communication with the base station using a frequency of 6 bands or a method of performing wireless communication with the base station using a 4G communication method.
  • the controller further detects an expandable bandwidth according to CA (Carrier Aggregation) when the second antenna module is an antenna module performing wireless communication with the base station in a 4G communication method, and The data throughput of the second antenna module is calculated based on the bandwidth.
  • CA Carrier Aggregation
  • the control unit when the temperature of the first antenna module performing wireless communication with the base station reaches a second temperature lower than the first temperature, the antenna activated by the first antenna module When the number of the first antenna module is reduced to mitigate heat generation of the first antenna module, and the number of antennas activated in the first first antenna module is less than or equal to a preset number, the temperature of the first first antenna module is the first It is characterized in that it is determined whether or not the temperature has been reached.
  • control unit is a modem (MODEM), an application processor (AP), or a terminal control unit that controls the overall operation of the electronic device.
  • MODEM modem
  • AP application processor
  • terminal control unit that controls the overall operation of the electronic device.
  • an electronic device in order to achieve the above or other objects, includes a plurality of first antenna modules capable of wireless communication with a base station according to a first communication method, and the plurality of A plurality of temperature sensors provided in each of the antenna modules and detecting a temperature of each antenna module, a second antenna module performing wireless communication with the base station through a second communication method different from the first communication method, and the plurality of Of the first antenna modules of, when the temperature of the first antenna module performing wireless communication with the base station reaches a preset temperature, data for each of different wireless communication operation states preset for thermal mitigation Calculate data throughputs, reduce the number of antennas activated for wireless communication with the base station, and reduce the number of antennas activated for wireless communication with the base station according to any one wireless communication operation state selected based on the calculated data throughputs. It characterized in that it comprises a control unit that performs at least one of the switching of the antenna module to be used.
  • the wireless communication operation states preset for mitigating heat are different operation states in which at least one of an antenna module used for wireless communication with the base station and the number of activated antennas are different from each other. do.
  • the plurality of first antenna modules each calculate a received signal strength indication (RSSI) and a signal-to-noise ratio (SNR, Signal To Ratio) according to wireless communication with the base station,
  • the controller further reflects the received signal strength and signal-to-noise ratio calculated by each of the first antenna modules to data throughputs related to each antenna module to calculate data throughputs for each of the different first antenna modules.
  • control unit reflects a variable determined according to the number of activated antennas to each of the data throughputs calculated for each of the different first antenna modules, and performs wireless communication with the base station. It is characterized in that different data throughputs are calculated for each operating state in which the antenna module used for the purpose and the number of activated antennas are different from each other.
  • a method for controlling an electronic device includes a plurality of first antenna modules capable of wireless communication with a base station according to a first communication method, In the control method of an electronic device comprising a second antenna module for performing wireless communication with the base station through a second communication method,
  • the base station According to a first step of measuring a temperature of a first first antenna module performing wireless communication with the base station among a plurality of first antenna modules, and whether the measured temperature has reached a preset first temperature, the A second step of calculating data throughput for each of the first antenna module and the second antenna module other than the first first antenna module, and the antenna module having the highest calculated data throughput, the base station It characterized in that it comprises a third step of switching the antenna module for performing wireless communication with.
  • the first communication method is a 5G communication method, a method of performing wireless communication with the base station using mmWave
  • the second communication method is a 5G wireless communication method
  • it is characterized in that it is a method of performing wireless communication with the base station using a frequency of the Sub 6 band, or a method of performing wireless communication with the base station using a 4G communication method.
  • the second step includes step 2-1 of detecting the number of antennas that can be used with different channels for each of the other first antenna module and the second antenna module, and the other first antenna module.
  • Step 2-2 of detecting the number of transmittable information per one modulated wave according to the size of the available bandwidth for each of the antenna module and the second antenna module, and the modulation method applied to each antenna module, and for each antenna
  • step 2-1 when the second antenna module performs wireless communication with the base station in a 4G communication method, step a of detecting the number of expandable bandwidths according to CA (Carrier Aggregation) And a step b of calculating the number of antennas usable with the different channels for the second antenna module by reflecting the number of the expandable bandwidths.
  • CA Carrier Aggregation
  • the first step comprises a step 1-1 of determining whether a temperature of the first first antenna module reaches a second temperature lower than the first temperature, and the first first Step 1-2 of reducing the number of antennas activated in the antenna module to alleviate heat generation of the first first antenna module, and when the number of antennas activated in the first first antenna module is less than or equal to a preset number, the It characterized in that it further comprises steps 1-3 of determining whether the temperature of the first first antenna module has reached the first temperature.
  • the present invention calculates a data throughput according to each wireless communication module when the antenna module exceeds a preset temperature while performing millimeter wave (mmWave) communication, and calculates the calculated data.
  • mmWave millimeter wave
  • the present invention calculates data throughput for each different operating state related to wireless communication when the antenna module exceeds a preset temperature while performing millimeter wave (mmWave) communication, and enables wireless communication to be performed according to the calculated data throughput. By doing so, there is an effect of allowing the most efficient wireless communication to be made in the current heating state of the electronic device.
  • mmWave millimeter wave
  • FIG. 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.
  • FIGS. 2A and 2B are block diagrams showing the 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.
  • FIG. 3 is a flowchart illustrating an operation process of switching an antenna module according to heat mitigation when performing millimeter wave (mmWave) communication in an electronic device according to an embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating an operation process of calculating a data throughput for each antenna module in an electronic device according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating an operation process in which an operation state transitions to an operation state having the highest data throughput according to heat mitigation when performing millimeter wave (mmWave) communication in an electronic device according to an embodiment of the present invention.
  • mmWave millimeter wave
  • 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.
  • PDA personal digital assistants
  • PMP portable multimedia player
  • slate PC slate PC
  • Tablet PC tablet PC
  • ultrabook ultrabook
  • wearable device wearable device, for example, smartwatch, glass-type terminal (smart glass), HMD (head mounted display)
  • HMD head mounted display
  • FIG. 1A is a block diagram illustrating an electronic device related to the present invention
  • 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.
  • 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.
  • 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.
  • an uplink (UL) multi-input multi-output (MIMO) may be performed by a plurality of 4G transmission signals transmitted to the 4G base station.
  • 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.
  • the 4G base station and the 5G base station may have a non-stand-alone (NSA) structure.
  • the 4G base station and the 5G base station may have a co-located structure disposed at the same location within a cell.
  • the 5G base station may be disposed in a separate location from the 4G base station in a stand-alone (SA) structure.
  • SA stand-alone
  • 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.
  • the 5G frequency band may use the same band as the 4G frequency band, and this may be referred to as LTE re-farming.
  • the 5G frequency band the Sub6 band, which is a band below 6GHz, may be used.
  • a millimeter wave (mmWave) band may be used as a 5G frequency band to perform broadband high-speed communication.
  • the electronic device 100 may perform beam forming for communication coverage expansion with a base station.
  • uplink MIMO may be performed by a plurality of 5G transmission signals transmitted to the 5G base station.
  • downlink (DL) MIMO may be performed by a plurality of 5G reception signals received from the 5G base station.
  • 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.
  • DC dual connectivity
  • the dual connection between the 4G base station and the 5G base station may be referred to as EN-DC (EUTRAN NR DC).
  • EUTRAN is an Evolved Universal Telecommunication Radio Access Network, which means 4G wireless communication system
  • NR is New Radio, which means 5G wireless communication system.
  • 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 BluetoothTM, 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.
  • 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).
  • a short-range wireless communication network Wireless Area Networks
  • the local area wireless communication network may be a wireless personal area network (Wireless Personal Area Networks).
  • short-range communication between electronic devices may be performed using the 4G wireless communication module 111 and the 5G wireless communication module 112.
  • short-range communication may be performed between electronic devices through a device-to-device (D2D) method without passing through a base station.
  • D2D device-to-device
  • carrier aggregation 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)
  • 4G + WiFi carrier aggregation may be performed using the 4G wireless communication module 111 and the Wi-Fi communication module 113.
  • 5G + WiFi carrier aggregation 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.
  • a GPS Global Positioning System
  • WiFi Wireless Fidelity
  • the location of the electronic device may be obtained using a signal transmitted from a GPS satellite.
  • 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.
  • AP wireless access point
  • 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.
  • 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.
  • 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.
  • the sensing unit 140 includes a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity.
  • G-sensor gyroscope sensor
  • motion sensor motion sensor
  • RGB sensor infrared sensor
  • IR sensor infrared sensor
  • fingerprint sensor fingerprint 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.
  • 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.
  • the controller 180 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.
  • 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.
  • 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 component 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.
  • 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.
  • 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.
  • the disclosed electronic device 100 includes a bar-shaped terminal body.
  • 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. .
  • a description of a specific type of electronic device may be generally applied to other types of electronic devices.
  • 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 case eg, a frame, a housing, a cover, etc.
  • 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.
  • 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.
  • 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.
  • the rear cover 103 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.
  • 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. .
  • two or more display units 151 may exist depending on the implementation form of 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • SIM Subscriber Identification Module
  • UIM User Identity Module
  • a second camera 121b may be disposed on the rear surface of the terminal body.
  • the second camera 121b has a photographing direction substantially opposite to that of the first camera 121a.
  • the second camera 121b may include a plurality of lenses arranged along at least one line.
  • the plurality of lenses may be arranged in a matrix format.
  • Such a camera may be referred to 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.
  • 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.
  • a plurality of antennas disposed on the side of the terminal may be implemented with four or more antennas to support MIMO.
  • the 5G wireless communication module 112 operates in a millimeter wave (mmWave) band
  • 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.
  • FIG. 2A is a view of a wireless communication unit 110 including a plurality of modules (hereinafter, mmWave modules) performing wireless communication using mmWave, and a second antenna module performing wireless communication with a base station in a different manner from the mmWave module. It is a block diagram showing the structure.
  • the wireless communication unit 110 of the electronic device 100 includes a plurality of antenna modules 201 and 202 performing broadband high-speed wireless communication through mmWave. It may include a millimeter wave (mmWave) antenna module, hereinafter referred to as a first antenna module), and an antenna module (hereinafter, referred to as a second antenna module) for performing wireless communication with a base station in a manner different from that of the mmWave antenna module.
  • mmWave millimeter wave
  • a second antenna module for performing wireless communication with a base station in a manner different from that of the mmWave antenna module.
  • the first antenna modules 201 and 202 may perform wireless communication using a frequency in a millimeter wave (mmWave) band. In addition, since it can have a wider bandwidth than that of using the frequency of the Sub 6 band, high-speed wireless communication can be performed. These millimeter wave (mmWave) antenna modules 201 and 202 may perform beam forming to extend communication coverage, and for this purpose, an antenna array including a plurality of antennas (Antenna array, 251). , 253).
  • the first antenna modules 201 and 202 may each include RFICs 211 and 212 designed for mmWave communication, and each of the RFICs 211 and 212 is connected to the modem 270 Thus, it can be controlled by the modem 270.
  • the first antenna modules 201 and 202 may each include a temperature sensor (not shown).
  • Each temperature sensor may be provided in each RFIC or may be provided in each antenna array.
  • the temperature sensing sensor may be provided in a power amplifier (PA) that can generate the most heat as a high voltage is applied.
  • PA power amplifier
  • the temperature value measured by each temperature sensor may be transmitted to the modem 270 as a temperature value of each antenna module.
  • the second antenna module 200 may be at least one module that performs wireless communication with the base station in a different manner from the first antenna modules 201 and 202.
  • the second antenna module 200 may be a 5G antenna module performing wireless communication according to a 5G communication method using a frequency of Sub 6 band, or a 4G antenna module performing wireless communication according to a 4G communication method.
  • the second antenna module 200 may be an antenna module operable in both the 4G wireless communication method or the 5G wireless communication method using a frequency of the Sub 6 band.
  • the second antenna module 200 may perform wireless communication with the base station according to either a 4G wireless communication method or a wireless communication method using a frequency of the Sub 6 band under the control of the modem 270.
  • the modem 270 may control each antenna module to suppress heat generation of the first antenna module according to the heating state of the first antenna module.
  • the modem 270 is activated by any one of the first antenna modules to alleviate heat generation.
  • At least one antenna can be deactivated.
  • the deactivated antenna may be at least one of antennas constituting the antenna array.
  • the antenna may be deactivated by deactivating a PA connected to the antenna and switching to a low power mode or a sleep mode.
  • the gain of the beam formed in the antenna array may be attenuated due to the deactivated antenna.
  • the current supplied to the antenna module is reduced according to the deactivation of at least one PA, heat generation of the antenna module may be suppressed.
  • the modem 270 may perform switching to another antenna module to alleviate heat generation.
  • the modem 270 of the electronic device 100 selects an antenna module having the highest efficiency and switches to the selected antenna module, thereby omitting unnecessary antenna module switching processes.
  • the efficiency of the antenna module may be determined through data throughput.
  • the modem 270 may calculate a data throughput according to a case of performing wireless communication with a base station from each of the antenna modules that are not currently in use. In this case, a data throughput according to another first antenna module that is not currently in use and a data throughput according to the second antenna module may be calculated.
  • the data throughput of the other first antenna module is the modulation of the millimeter wave 5G wireless communication method
  • the first antenna module is an antenna module that performs wireless communication using a 5G wireless communication method using a millimeter wave frequency.
  • the data throughput of the other first antenna module may be calculated according to the number of layers determined according to the scheme and bandwidth, and the number of antennas available for different channels.
  • the modem 270 includes a 4G modulation method and a 4G bandwidth, and the number of 4G antennas that can be used in different channels and CA ( Carrier Aggregation)
  • a data throughput of the second antenna module may be calculated based on a possible frequency band.
  • the modem 270 includes the number of 5G Sub 6 antennas available through different channels, and Sub The data throughput of the second antenna module may be calculated based on the 5G modulation method and bandwidth of 6 frequency bands.
  • the modem 270 may select any one antenna module based on the calculated data throughput.
  • the currently used first antenna module may be deactivated, and wireless communication with the base station may be performed through any one antenna module selected according to data throughput. That is, the modem 270 may switch the antenna module used for wireless communication with a first antenna module or a second antenna module different from the previously used first antenna module based on the data throughput.
  • the deactivated antenna module may be driven in a low power mode or a sleep mode.
  • 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.
  • FIG. 2B shows a detailed configuration of an antenna module provided in the wireless communication unit 110 of the electronic device 100 according to an embodiment of the present invention.
  • the antenna module shown in FIG. 2B may be a first antenna module or a second antenna module.
  • a plurality of power amplifiers, RFICs, and antennas shown in FIG. 2B may be for millimeter wave (mmWave) communication
  • the plurality of power amplifiers shown in FIG. 2B may be for 5G communication using 4G or sub 6 band frequencies.
  • the antenna module of the wireless communication unit 110 may include a first power amplifier 220, a second power amplifier 221, and an RFIC 250.
  • the electronic device may further include a modem 270 and an application processor 280.
  • the modem 270 and the application processor 280 may be physically implemented on one chip, and may be logically and functionally separated.
  • the present invention is not limited thereto and may be implemented in the form of a physically separated chip according to an application.
  • the wireless communication unit 110 includes a plurality of low noise amplifiers (LNAs) 261 to 264 in the receiving unit.
  • LNAs low noise amplifiers
  • the first power amplifier 220, the second power amplifier 221, 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.
  • the first communication system and the second communication system may be a 4G communication system and a 5G communication system, respectively.
  • 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.
  • 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.
  • the RFIC 250 when configured as a 4G/5G separate type, it may be referred to as a 4G RFIC and a 5G RFIC, respectively.
  • the RFIC 250 when 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.
  • the 4G RFIC and the 5G RFIC may be logically and functionally separated, and may be physically implemented on a single chip.
  • the RFIC 250 when the RFIC 250 is configured as a 4G/5G integrated or separate type, the RFIC 250 may include a 5G RFIC and a 4G RFIC using sub 6 bands in an integrated or separate type.
  • the antenna module 240 illustrated in FIG. 2B may be a second antenna module performing wireless communication in a 4G communication method or a sub 6 band 5G communication method.
  • the RFIC 250 may be composed of only one 5G RFIC for millimeter wave (mmWave) 5G communication. .
  • 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.
  • 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 switch the power circuit of the transmitter and the receiver to the low power mode through the RFIC 250.
  • the application processor (AP, 280) switches at least one of the power amplifiers connected to each antenna to a low power mode or turns off the modem 270 based on a temperature measurement value sensed from the antenna module.
  • the RFIC 250 can be controlled.
  • a specific antenna module itself may be controlled through the modem 270 to be driven in a low power mode or a sleep mode.
  • the first power amplifier 220 and the second power amplifier 221 may operate in at least one of the first and second communication systems.
  • the antenna module shown in FIG. 2B is a second antenna module (when operating in a 4G band or a Sub6 band)
  • the first and second power amplifiers 221 are both in the first and second communication systems. Operation is possible.
  • the antenna module shown in FIG. 2B is any one of a plurality of first antenna modules (when operating in a millimeter wave (mmWave) band), the first and second power amplifiers 220 and 221 are It can operate in the (mmWave) band.
  • mmWave millimeter wave
  • 4x4 MIMO can be implemented using four antennas as shown in FIG. 2B.
  • 4x4 DL MIMO may be performed through downlink (DL).
  • the first to fourth antennas ANT1 to ANT4 may be configured to operate in both the 4G band and the 5G band.
  • the antenna module shown in FIG. 2B is a first antenna module
  • the first to fourth antennas ANT1 to ANT4 may be configured as array antennas of mmWave band, respectively.
  • 2x2 MIMO can be implemented using two antennas connected to the first power amplifier 220 and the second power amplifier 221 among the four antennas.
  • 2x2 UL MIMO (2 Tx) may be performed through uplink (UL).
  • 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.
  • 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 an SPDT (Single Pole Double Throw) type switch inside the RFIC.
  • SPDT Single Pole Double Throw
  • 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.
  • a signal of a transmission band transmitted through the first and second power amplifiers 220 and 221 may be applied to the antennas ANT1 and ANT4 through the first output port of the duplexer 231.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the switch 233 is applicable to a frequency division multiplexing (FDD) scheme.
  • 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.
  • DPDT Double Pole Double Throw
  • the switch 233 is not necessarily required.
  • the electronic device may further include a modem 270 corresponding to a control unit.
  • 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.
  • the RFIC 250 and the modem 270 may be implemented as physically separate circuits.
  • 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.
  • the control information may be received through a physical downlink control channel (PDCCH), but is not limited thereto.
  • PDCCH physical downlink control channel
  • 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 220 and 221 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.
  • FIG. 3 is a flowchart illustrating an operation process of switching an antenna module according to heat mitigation when performing millimeter wave (mmWave) communication in an electronic device according to an embodiment of the present invention.
  • the electronic device is different from a method of using two first antenna modules each using a frequency of a millimeter wave (mmWave) band, and a method using a frequency of the millimeter wave (mmWave) band. It will be described as an example including one second antenna module for performing wireless communication in a manner.
  • the second antenna module may be a 5G antenna module using a frequency of the Sub 6 band, or a 4G antenna module using a frequency of the 4G band.
  • the description will be made on the assumption that the second antenna module is a 4G antenna module using a frequency of a 4G band.
  • the present invention is not limited to this assumption.
  • the electronic device 100 performs wireless communication using a millimeter wave (mmWave) frequency through any one first antenna module (first first antenna module).
  • first first antenna module may be an antenna module determined to be most suitable for wireless communication according to the current location of the electronic device 100 and the location of the base station.
  • the electronic device 100 may receive a signal (base station signal) transmitted from the base station from each of the plurality of first antenna modules.
  • a signal base station signal
  • the antenna module performs wireless communication using a signal of a millimeter wave (mmWave) frequency band in the same manner
  • one of the first antenna modules directed to the base station due to the characteristic of the millimeter wave having strong linearity
  • the signal strength and signal-to-noise ratio may be higher than that of other first antenna modules that are not directed.
  • the electronic device 100 selects one of the first antenna modules directed to the base station in preference to the other first antenna module according to the detected signal strength and signal-to-noise ratio, and selects the selected first antenna module. Through this, wireless communication with the base station can be performed.
  • any one of the first antenna modules having better received signal strength and signal-to-noise ratio as directed toward the base station may be the first first antenna module.
  • another first antenna module having a lower received signal strength and a signal-to-noise ratio than the first first antenna module may be the second first antenna module due to not being directed to the base station or due to other ambient noise conditions.
  • the modem 270 may measure the temperature of the first first antenna module (S300).
  • the temperature of the first first antenna module may be measured from a temperature sensor provided in the first first antenna module.
  • the modem 270 may maintain the current wireless communication state as it is. Then, the process proceeds to step S300 again, and the temperature of the first first antenna module may be measured.
  • the modem 270 may detect the number of antennas activated for wireless communication in the first first antenna module. In addition, it may be checked whether the number of activated antennas exceeds a preset number (S304).
  • the preset number may be the number of antennas capable of generating a minimum beam capable of wireless communication. That is, in the case where the beam formed for wireless communication with the base station in mmWave communication can be formed with only one antenna, the preset number may be one. In this case, the modem 270 may check whether the number of antennas activated in the module of the first first antenna exceeds one in step S304.
  • the modem 270 may deactivate at least one of the activated antennas (S306). For example, the modem 270 may deactivate two antennas if four antennas are currently activated. And, if two antennas are currently activated, one antenna can be deactivated. Then, the process proceeds to step S300 again, and the temperature of the first antenna module currently being used may be measured again. In addition, steps S302 to S304 may be performed again according to the temperature measured in step S300, and step S306 may be performed again according to the check result of step S304.
  • step S304 if the number of activated antennas does not exceed a preset number, that is, in the state that there is only one antenna of the first currently activated first antenna module, the temperature is higher than the preset first temperature again. If the temperature of the first first antenna module increases, the modem 270 may re-measure the temperature of the first first antenna module (S308). In addition, it may be checked whether the temperature of the first antenna module re-measured in step S308 reaches a preset second temperature (S310).
  • the second temperature may be a temperature higher than the first temperature.
  • the modem 270 may proceed to step S308 again and measure the temperature of the first first antenna module again. This is due to the characteristic of the millimeter wave (mmWave) with strong linearity, even if one antenna is used, the first antenna module directed to the base station is not directed to the base station (therefore, the received signal strength is higher than that of the first antenna module). And a higher data transmission rate, that is, a data throughput, than the second antenna module (inferior signal-to-noise).
  • mmWave millimeter wave
  • the modem 270 is configured to reduce heat generation. It is possible to perform switching of the antenna module used for wireless communication. To this end, the modem 270 may first calculate a data throughput for each antenna module that is not currently being used (S312).
  • Antenna modules that are not currently used in step S312 may mean a second first antenna module and a second antenna module. Accordingly, the modem 270 may calculate an expected data throughput for each of the second antenna module and the second antenna module.
  • the data throughput may be calculated based on the number of usable antennas, modulation, and the number of usable bandwidths.
  • the data throughput may be calculated based on the modulation method according to the millimeter wave wireless communication, the bandwidth, and the number of antennas usable through different channels.
  • the data throughput can be calculated based on the modulation method according to 4G wireless communication, the bandwidth according to 4G wireless communication, the number of antennas available for different channels, and the frequency band capable of carrier aggregation (CA). have.
  • CA carrier aggregation
  • step S312 when data throughput for each of the antenna modules other than the first antenna module currently used for wireless communication is calculated, the modem 270 selects any one antenna module having the highest data throughput. I can. In addition, any one antenna module having the highest data throughput may be activated, and a first first antenna module currently being used may be deactivated. That is, the antenna module being used for wireless communication may be switched from the first antenna module to the antenna module having the highest data throughput calculated in step S312 (S314). In addition, the modem 270 may perform wireless communication with the base station through the switched antenna module.
  • the modem 270 may detect whether the currently switched antenna module is an antenna module of the same type as the first first antenna module, that is, an antenna module using a millimeter wave (mmWave) frequency (S316). That is, if the module switched in the step S314 is the second first antenna module, the modem 270 proceeds to step S300 and performs the process of steps S300 to S314 again for the second first antenna module. can do. On the other hand, if the currently switched antenna module is not an antenna module using a millimeter wave (mmWave) frequency (for example, a 4G antenna module or a 5G antenna module using the Sub 6 frequency band), the modem 270 is an antenna module. The operation of switching can be terminated.
  • mmWave millimeter wave
  • the temperature of the first antenna modules may be stabilized by performing wireless communication for a certain period of time through the currently switched 4G antenna module or the 5G antenna module using the Sub 6 frequency band. And when the temperature of the first antenna modules is stabilized, wireless communication using millimeter wave (mmWave) with the base station through any one first antenna module (first first antenna module) is performed again based on the received signal strength and signal-to-noise ratio. can do. And in this case, the process of FIG. 3 may be performed again.
  • mmWave millimeter wave
  • FIG. 4 is a flowchart illustrating an operation process of calculating data throughput for each of antenna modules that are not currently in use in the electronic device 100 according to an exemplary embodiment of the present invention.
  • step S312 of FIG. 3 when step S312 of FIG. 3 starts, first, the number of layers usable for each of antenna modules that are not currently performing wireless communication with a base station may be detected (S400).
  • the number of layers usable here may be determined according to the number of antennas usable through different channels and the number of frequency bands expandable through carrier aggregation (CA). Therefore, the 4G antenna module capable of CA (e.g., when the second antenna module is a 4G antenna module) is not only the number of antennas that can be used with different channels in the 4G antenna module, but also the number of 4G frequency bandwidths that can be extended through CA. Considering all of them, the number of layers can be detected.
  • CA carrier aggregation
  • the number of antennas that can be used for different channels may be 4, and if the number of 4G frequency bandwidths that can be extended through CA is 6, the number and extension of antennas
  • the number of layers may be detected according to the number of antennas that can be used with different channels. Accordingly, when a 4X4 antenna is used, the number of usable antennas may be 4 and the number of layers may be 4, and when a 2X2 antenna is used, the number of usable antennas may be 2 and the number of layers may be 2. . Meanwhile, in the case of using a 1X2 antenna like a dipole antenna, the number of usable antennas may be one, and the number of layers may be one.
  • the number of layers is 4 (when using a 4X4 antenna) or 2 (2X2). If an antenna is used).
  • the modem 270 performs one modulated modulation according to the available bandwidth (Mhz) and modulation scheme for each antenna module. It is possible to determine the number of information that can be transmitted per wave (S402).
  • a bandwidth of 800 MHz according to the millimeter wave (mmWave) may be determined.
  • the number of transmittable information '64' per one modulated wave may be determined according to a modulation method used for mmWave wireless communication, 64 Quadrature Amplitude Modulation (QAM).
  • QAM Quadrature Amplitude Modulation
  • the second antenna module is a 5G antenna module using a frequency of the Sub 6 band
  • a bandwidth of 100Mhz according to the Sub 6 5G wireless communication method may be determined.
  • the number of transmittable information '256' per one modulated wave may be determined according to the modulation method and 256 QAM used in the Sub 6 5G wireless communication method.
  • the second antenna module is a 4G antenna module
  • a bandwidth of 20Mhz according to the 4G wireless communication method may be determined.
  • the number of transmittable information '1024' per one modulated wave may be determined according to the modulation method 1024 QAM used in the 4G wireless communication method.
  • step S402 when the available bandwidth (Mhz) for each antenna module and the number of transmittable information per one modulated wave according to the modulation method of each antenna module are determined, the modem 270 determines the number of layers determined in step S400 and , Based on the values determined in step S402, an expected data throughput for each antenna module may be calculated (S404).
  • the expected data throughput for each antenna module may be calculated according to Equation 1 below.
  • V layers may mean the number of usable layers.
  • Q m means the number of information that can be transmitted per one modulated wave according to the modulation scheme
  • f is a preset scaling factor and may be a constant having a value of 1 or 0.75.
  • R MAX may be a constant determined according to a preset target code rate
  • BW may be a bandwidth
  • S u may be a spectral utilization constant determined by subcarrier spacing (SCS).
  • OH is an overhead constant determined according to the frequency band used, and may be a constant having 0.14 when the frequency band is a Sub 6 band and 0.2 when the frequency band is a millimeter wave (mmWave) band.
  • the number of layers (V layers ) of each antenna module determined in step S400, the number of transmittable information per one modulated wave determined in step S402 (Q m ), and The data transmission rate of each antenna module, that is, data throughput may be determined in step S404 according to the bandwidth BW.
  • the modem 270 may select any one antenna module in step S314 of FIG. 3 and perform switching to the selected antenna module according to the data throughput calculated in step S404.
  • the electronic device 100 when the number of antennas in the active state in the currently used antenna module is less than or equal to a preset number, when the temperature increases above a specific temperature, switching to another antenna module is performed.
  • the electronic device 100 performs wireless communication using a specific antenna module and may change the operating state to a specific operating state in which a specific number of antennas are activated.
  • FIG. 5 illustrates an operation process in which the electronic device 100 according to the embodiment of the present invention in this case transitions to an operation state with the highest data throughput according to heat mitigation when performing millimeter wave (mmWave) communication. It is a flow chart shown.
  • mmWave millimeter wave
  • the electronic device 100 is directed to a base station, and thus any one first antenna module having excellent received signal strength and/or signal-to-noise ratio (first first antenna module ), it is possible to perform wireless communication with the base station.
  • the modem 270 may measure the temperature of the antenna module currently used for wireless communication (S500). For example, in a state in which wireless communication with the base station is currently performed through the first first antenna module, the modem 270 may measure the temperature of the first first antenna module in step S500. In addition, it may be determined whether the measured temperature is higher than or equal to a preset temperature (S502).
  • step S502 if the measured temperature of the antenna module is less than a preset temperature, the modem 270 may maintain a current operating state of performing wireless communication. Then, by proceeding to step S500 again, the temperature of the antenna module currently being used for wireless communication is measured again, and by proceeding to step S502, the measured temperature and the preset temperature may be compared again.
  • the modem 270 may calculate a data throughput for each preset operating state (S504).
  • each operating state may be an operating state using different antenna modules.
  • the modem 270 may calculate a data throughput for each of the antenna modules other than the antenna module currently used for wireless communication, similar to step S312 of FIG. 3.
  • each operation state may be an operation state in which not only different antenna modules but also the number of activated antennas are different.
  • the modem 270 may calculate a data throughput for each antenna module for each case in which the number of activated antennas is different from each other.
  • the first antenna module when all four antennas are activated, when only two antennas are activated, and when only one antenna is activated, operation states related to the first antenna may be respectively.
  • operation states related to the first antenna may be respectively.
  • the second first antenna module a case where all four antennas are activated, a case where only two antennas are activated, and a case where only one antenna is activated may be operating states related to the second first antenna, respectively.
  • the use of the second antenna module may be another operating state.
  • the modem 270 detects operation states capable of mitigating heat more than the current, according to the number of antenna modules and activated antennas that perform wireless communication with the current base station, and data throughput for each of the detected operation states. Can be calculated.
  • the operating states capable of mitigating heat generation than the current one may be an operating state corresponding to a case in which the number of activated antennas is smaller in an antenna module such as an antenna module currently being used.
  • the modem 270 is associated with the first first antenna module.
  • the operating states it is possible to detect a case where only two antennas are activated and a case where only one antenna is activated.
  • all of the operating states related to the second first antenna module may be detected.
  • a data throughput for each detected operation state may be calculated.
  • the data throughput for each operation state may be differently reflected in the number of available layers, that is, only Vlayers, in Equation 1 above.
  • the value calculated in Equation 1 may be a value calculated by further reflecting a variable determined according to the number of activated antennas for each operating state.
  • the data throughput calculated in the step S504 is a first antenna having a different received signal strength indication (RSSI) or a signal to noise ratio (SNR) detected from each of the different first antenna modules. It may be applied more for each module.
  • the data throughput for each operating state of the first antenna module may be calculated by reflecting at least one more received signal strength and signal-to-noise ratio detected by the first antenna module, and the data throughput for each operating state of the second antenna module Are calculated by reflecting at least one more received signal strength and a signal-to-noise ratio detected by the second antenna module.
  • the data throughput for each operation state of the first first antenna module is the number of layers according to the millimeter wave communication method in Equation 1, the bandwidth, and the number of information that can be transmitted to one modulated wave according to the modulation method.
  • the calculated value may be a value calculated by reflecting at least one variable determined according to the number of activated antennas and at least one received signal strength and signal-to-noise ratio detected by the first antenna module.
  • the data throughput for each operation state of the second first antenna module depends on the number of layers according to the millimeter wave communication method in Equation 1, the bandwidth, and the number of information that can be transmitted to one modulated wave according to the modulation method.
  • the calculated value may be a value calculated by reflecting at least one variable determined according to the number of activated antennas and at least one received signal strength and signal-to-noise ratio detected by the second antenna module.
  • the data throughput of the second antenna module depends on the layer according to the wireless communication method (4G or 5G of the Sub 6 frequency band) used in the second antenna module, the bandwidth, and the number of information that can be transmitted in one modulated wave. It may be a calculated value.
  • the modem 270 may detect any one operation state having the highest calculated data throughput (S506).
  • the wireless communication operation state of the electronic device 100 may be changed according to the detected operation state (S508).
  • the temperature of the first first antenna module is If it rises above the set level, the operation state of using the second second antenna module immediately without deactivating at least some of the antennas activated by the first antenna module (e.g., a state where four antennas are activated) is changed. It can be a transition.
  • the operation state may be shifted to an operation state of performing wireless communication with the second antenna module performing 4G wireless communication immediately.
  • the modem 270 may detect whether the current transition operation state is an operation state using an antenna module of the same type as the first first antenna module, that is, an antenna module using a mmWave frequency ( S510). And, if the current transitioned operation state is the operation state using the second first antenna module, the modem 270 proceeds to step S500 to perform a process from step S500 to step S508 for the second first antenna module. You can do it again.
  • step S508 if the operation state transitioned in step S508 is not the operation state using the millimeter wave (mmWave) antenna module, that is, the operation state using the second antenna module, the modem 270 operates to transition the operation state. Can be terminated.
  • mmWave millimeter wave
  • the temperature of the first antenna modules may be stabilized by performing wireless communication for a certain period of time according to the transitioned wireless communication operation state. And when the temperature of the first antenna modules is stabilized, wireless communication using millimeter wave (mmWave) with the base station through any one first antenna module (first first antenna module) is performed again based on the received signal strength and signal-to-noise ratio. can do. And in this case, the process of FIG. 5 may be performed again.
  • mmWave millimeter wave
  • the data throughput for each antenna module or operation state is determined.
  • a predetermined specific temperature e.g., the second temperature in step S312 of FIG. 3 and the temperature preset in step S502 of FIG. 5
  • the data throughput may be calculated first before the temperature of the antenna module reaches a predetermined specific temperature. .
  • the modem of an electronic device increases data throughput when the number of activated antennas is reduced to a preset number or less (for example, after reducing the number of antennas in step S306 of FIG. 3).
  • Information for calculating in advance or calculating data throughput may be collected (eg, steps S400 and S402 of FIG. 4 ).
  • the data throughput may be calculated in advance or related information may be collected in advance. In this case, in step S312 of FIG. 3 or step S504 of FIG. 5, the time required for calculating the data throughput can be significantly reduced, and thus, the time required for switching the antenna module or transitioning the operation state can be shortened.
  • the controller may be the modem 270, an application processor (AP, 280) or a terminal controller 180 that controls the overall operation 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.
  • HDDs hard disk drives
  • SSDs solid state disks
  • SDDs silicon disk drives
  • ROMs read-only memory
  • RAM compact disc drives
  • CD-ROMs compact discs
  • magnetic tapes magnetic tapes
  • floppy disks optical data storage devices
  • optical data storage devices etc.
  • carrier wave for example, transmission over the Internet
  • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention comprend : une pluralité de premiers modules d'antenne pouvant communiquer sans fil avec une station de base selon un premier schéma de communication ; une pluralité de capteurs de température qui sont disposés dans la pluralité de modules d'antenne et détectent des températures des modules d'antenne, respectivement ; un second module d'antenne destiné à effectuer une communication sans fil avec la station de base par l'intermédiaire d'un second schéma de communication différant du premier schéma de communication ; et une unité de commande destinée à calculer, si la température d'un premier module d'antenne, qui effectue en premier une communication sans fil avec la station de base, parmi la pluralité de premiers modules d'antenne atteint une première température préconfigurée, des quantités de données du second module d'antenne et des autres premiers modules d'antenne, et à commuter le module d'antenne, qui effectue une communication sans fil avec la station de base, vers un module choisi parmi le second module d'antenne et les autres premiers modules d'antenne sur la base des quantités de données calculés.
PCT/KR2019/011385 2019-09-04 2019-09-04 Dispositif électronique prenant en charge une atténuation thermique et son procédé de commande Ceased WO2021045249A1 (fr)

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CN115021774A (zh) * 2022-05-17 2022-09-06 Oppo广东移动通信有限公司 射频系统、天线选择方法和通信设备
CN115276742A (zh) * 2021-04-30 2022-11-01 苹果公司 用于基于温度的天线选择的方法和装置

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