WO2020145420A1 - Electronic device having a reception amplification unit - Google Patents

Abstract

Provided is an electronic device having a reception amplification unit operating in a multiple communication system according to the present invention. The electronic device comprises: a reception amplification unit for amplifying a first signal of a first communication system and a second signal of a second communication system with different gain values, and outputting the first signal and the second signal through a first output and a second output, respectively; and a baseband processor for controlling, on the basis of a difference in strength between the first signal and the second signal, the reception amplification unit so that the first signal and the second signal can be amplified with the different gain values. Despite the difference in the strength of the received signals of the different communication systems, the gain of each reception amplification unit can be dynamically controlled, thereby keeping the performance of a receiving unit constant.

Description

Electronic device having a receiving amplifier

The present invention relates to an electronic device having a receiving amplifier. More particularly, it relates to a method of controlling a receiving amplification unit of different communication systems and an electronic device performing the same.

Electronic devices may be divided into mobile/portable terminals and stationary terminals depending on whether they are movable. Again, electronic devices may be divided into handheld terminals and vehicle mounted terminals according to whether the user can directly carry them.

The functions of electronic devices are diversifying. For example, there are functions for data and voice communication, photo and video shooting through a camera, voice recording, music file playback through a speaker system, and output of an image or video to the display. In some terminals, an electronic game play function is added or a multimedia player function is performed. In particular, recent mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

As such electronic devices have diversified functions, for example, they are implemented in the form of a multimedia player equipped with complex functions such as taking pictures or videos, playing music or video files, and receiving games and broadcasts. have.

In order to support and increase the functions of such electronic devices, it may be considered to improve the structural part and/or software part of the terminal.

In addition to the above attempts, in recent years, a wireless communication system using LTE communication technology has been commercialized to provide various services. In addition, it is expected that wireless communication systems using 5G communication technology will be commercialized in the future to provide various services. Meanwhile, some of the LTE frequency bands may be allocated to provide 5G communication service.

In this regard, the mobile terminal may be configured to provide 5G communication service in various frequency bands. Recently, attempts have been made to provide a 5G communication service using a Sub6 band below the 6GHz band. However, in the future, it is expected to provide 5G communication service using millimeter wave (mmWave) band in addition to Sub6 band for faster data rate.

Meanwhile, in the case of LTE re-farming in which the LTE frequency band is reused as a 5G communication band or when using the Sub6 band, when receiving 4G and 5G signals, received signal characteristics may be different. Accordingly, separate signal processing for 4G and 5G signals may be required.

However, when the characteristics of the received signals, such as the difference in signal size between the 4G received signal and the 5G received signal, are different, there is a problem in that a specific signal processing method for how to amplify and process these received signals is not provided.

On the other hand, when amplifying a 4G reception signal having different signal characteristics and a 5G reception signal with the same gain and noise characteristics, issues may arise when amplifying a reception signal having a high reception signal level. In this regard, there is a problem in that saturation of a reception amplification unit of a next stage may occur when amplifying a reception signal having a high reception signal level.

The present invention aims to solve the above and other problems. In addition, another object is to provide an electronic device capable of maintaining a constant performance of a receiving unit despite differences in received signal sizes of different communication systems.

Another object of the present invention is to provide a configuration and control method of an electronic device capable of preventing saturation of a reception amplification unit of a next stage when amplifying a reception signal having a high reception signal level.

In order to achieve the above or other object, an electronic device having a receiving amplifying unit operating in a multiple communication system according to the present invention is provided. The electronic device may include: a receiving amplifying unit amplifying the first signal of the first communication system and the second signal of the second communication system with different gain values, and outputting them through the first output and the second output, respectively; And a baseband processor that controls the receiving amplifier so that the first signal and the second signal are amplified to different gain values based on the difference in size between the first signal and the second signal. In spite of differences in received signal sizes of different communication systems, it is possible to dynamically control the gain of each receiving amplifying unit to maintain a constant performance of the receiving unit.

In one embodiment, the receiving amplifier may further include a transceiver circuit configured to input the first output and the second output. At this time, the transceiver circuit individually adjusts the resistance values of the variable resistors connected to the first output and the second output to dynamically control the gain of the received signal when amplifying a received signal having a high received signal level. Can. Accordingly, there is an advantage in that saturation of the reception amplification unit of the next stage can be prevented.

In one embodiment, the transceiver circuit may further include first and second receive amplifiers respectively connected to the first output and the second output.

In one embodiment, the baseband processor may determine in advance whether one of the first and second receive amplifiers is to be saturated. Accordingly, the baseband processor controls the circuit of the transceiver unit so that a difference between the first and second signals input to the first and second receive amplifiers is equal to or less than a threshold value, so that the first and second receive amplifiers Can be prevented from saturation.

In one embodiment, the reception amplification unit may include a signal distribution unit (Balun filter) having an input connected to the transistor output of the reception amplification unit and the first output and the second output having a phase difference of 90 degrees. have.

In one embodiment, the ratio of the first and second variable resistors respectively connected to the first output and the second output of the signal distribution unit is equal to or greater than the second threshold value. , The ratio of the first and second variable resistors may be adjusted based on the difference in magnitude between the received first signal and the second signal.

In one embodiment, the ratio of the first and second variable resistors respectively connected to the first output and the second output of the signal distribution unit is equal to or greater than the threshold value of the amplified first signal and the second signal, The ratio of the first and second variable resistors may be adjusted based on the difference in magnitude between the amplified first signal and the second signal.

In one embodiment, the receiving amplification unit may further include an input unit connected to the signal distribution unit. Further, the signal distribution unit may further include a first reception amplification unit connected to the first output and amplifying the first signal of the first communication system with a gain of G ₁ . In addition, a second reception amplification unit connected to the second output of the signal distribution unit and amplifying the second signal of the second communication system with a gain of G ₂ may be further included.

In an embodiment, the transceiver circuit may determine whether |r ₁ -r ₂ |, which is a difference in magnitude between the received first signal and the second signal, is greater than or equal to the second threshold. Here, r ₁ and r ₂ are received signal sizes of the first signal and the second signal received through the input unit.

In one embodiment, the baseband processor, if the size difference |r ₁ -r ₂ | of the received first signal and the second signal is greater than or equal to the second threshold, the first and second variable resistors The transceiver circuit can be controlled to adjust the ratio.

In an embodiment, the transceiver circuit may determine whether |G ₁ *r ₁ -G ₂ *r ₂ |, which is a difference between the amplitudes of the amplified first signal and the second signal, is greater than or equal to the threshold. have. Here, r ₁ and r ₂ are received signal sizes of the first signal and the second signal received through the input unit, and G ₁ and G ₂ are low-noise amplification of the received first signal and the second signal. This is a dynamically controlled gain value.

In one embodiment, if the baseband processor, |G ₁ *r ₁ -G ₂ *r ₂ |, which is a size difference between the amplified first signal and the second signal, is greater than or equal to the threshold, the first and first 2 The transceiver circuit can be controlled to further adjust the ratio of the variable resistor.

An electronic device is provided having a receiving amplifying unit operating in a multiple communication system according to another aspect of the present invention. The electronic device may include: a receiving amplifying unit amplifying the first signal of the first communication system and the second signal of the second communication system with different gain values, and outputting them through the first output and the second output, respectively; And a control unit controlling the reception amplification unit so that the first signal and the second signal are amplified to the different gain values based on the difference in size between the first signal and the second signal. Despite the difference in the received signal size, it is possible to dynamically control the gain of each receiving amplifying unit to maintain a constant performance of the receiving unit.

In one embodiment, the receiving amplifier may further include a transceiver circuit configured to input the first output and the second output. The transceiver circuit may individually adjust the resistance values of the variable resistors connected to the first and second outputs to dynamically control the gain of the received signal when amplifying a received signal having a high received signal level. . Accordingly, there is an advantage in that saturation of the reception amplification unit of the next stage can be prevented.

In an embodiment, a first receive amplifier and a second receive amplifier respectively connected to the first output and the second output may be further included. At this time, the first receiving amplifier may operate to further amplify the amplified first signal in the first communication system, which is a 4G communication system. Further, the second receive amplifier may operate to further amplify the amplified second signal in the second communication system, which is a 5G communication system.

In one embodiment, the controller may determine whether any one of the first and second receive amplifiers is to be saturated. At this time, the control unit controls the circuit of the transmission and reception unit so that the difference between the first and second signals input to the first and second reception amplifiers is equal to or less than a threshold, so that the saturation of the first and second reception amplifiers Can be prevented.

An electronic device having a reception amplification unit according to the present invention provides an electronic device that dynamically maintains the performance of the reception unit by dynamically controlling the gain of each reception amplification unit, despite the difference in the received signal size of different communication systems It has the advantage of being able to.

According to the invention. When amplifying a received signal having a high received signal level, an electronic device can be configured and controlled to dynamically control the gain of the received signal to prevent saturation of the receiving amplification part of the next stage. It has the advantage of being able to.

1A is a block diagram illustrating an electronic device related to the present invention, and FIGS. 1B and 1C are conceptual views illustrating an example of an electronic device related to the present invention in different directions.

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.

3 shows a detailed configuration of an electronic device operable in a plurality of communication systems according to the present invention.

4 shows a detailed configuration of a receiving amplifier having two output terminals according to the present invention.

5 illustrates a detailed configuration of an electronic device having a separate transceiver circuit according to another embodiment of the present invention.

6 is a flowchart of a method for dynamically controlling a receiving amplifier in a plurality of communication systems according to the present invention.

Hereinafter, exemplary embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are assigned the same reference numbers regardless of the reference numerals, and overlapping descriptions thereof will be omitted. The suffixes "modules" and "parts" for components used in the following description are given or mixed only considering the ease of writing the specification, and do not have meanings or roles distinguished from each other in themselves. In addition, in the description of the embodiments disclosed herein, when it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed herein, detailed descriptions thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed in the specification is not limited by the accompanying drawings, and all modifications included in the spirit and technical 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 components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from other components.

When an element is said to be "connected" or "connected" to another component, it is understood that other components may be directly connected to or connected to the other component, but there may be other components in between. It should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists 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 indicate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and that one or more other features are present. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Electronic devices described herein include mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation, and slate PCs. , Tablet PC (tablet PC), ultrabook (ultrabook), wearable device (wearable device, for example, a watch-type terminal (smartwatch), glass-type terminal (smart glass), HMD (head mounted display), etc. may be included have.

However, the configuration according to the embodiment described in the present specification can be easily recognized by those skilled in the art that the configuration may be applied to a fixed terminal such as a digital TV, a desktop computer, and a digital signage, except when applicable only to a mobile terminal. will be.

1A to 1C, FIG. 1A is a block diagram illustrating an electronic device related to the present invention, and FIGS. 1B and 1C are conceptual views of an electronic device related to the present invention as 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 an electronic device, and thus, the electronic device described herein may have more or fewer components than those listed above.

More specifically, the wireless communication unit 110 among the components, between the electronic device 100 and the wireless communication system, between the electronic device 100 and another electronic device 100, or the electronic device 100 and an external server It may include one or more modules that enable wireless communication between. Also, the wireless communication unit 110 may include one or more modules connecting the electronic device 100 to one or more networks. Here, the one or more networks may be, for example, a 4G communication network and a 5G communication network.

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 a 4G base station. Also, the 4G wireless communication module 111 may receive one or more 4G reception signals from a 4G base station.

In this regard, uplink (UL) multi-input multi-output (MIMO) may be performed by a plurality of 4G transmission signals transmitted to a 4G base station. In addition, downlink (DL) multi-input multi-output (MIMO) may be performed by a plurality of 4G received 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 be a co-located structure disposed at the same location in the cell. Alternatively, the 5G base station may be arranged in a stand-alone (SA) structure at a location separate from the 4G base station.

The 5G wireless communication module 112 may transmit and receive 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 a 5G base station. Also, the 5G wireless communication module 112 may receive one or more 5G reception signals from a 5G base station.

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

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

Meanwhile, regardless of the 5G frequency band, a 5G communication system may support a larger number of multi-input multi-output (MIMO) to improve transmission speed. In this regard, uplink (UL) MIMO may be performed by a plurality of 5G transmission signals transmitted to a 5G base station. In addition, downlink (DL) MIMO may be performed by a plurality of 5G reception signals received from a 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. As such, a dual connection between a 4G base station and a 5G base station may be referred to as EN-DC (EUTRAN NR DC). Here, EUTRAN is an Evolved Universal Telecommunication Radio Access Network, which means a 4G wireless communication system, and NR is New Radio, which means a 5G wireless communication system.

Meanwhile, if the 4G base station and the 5G base station have a co-located structure, throughput can be improved through inter-CA (carrier aggregation). Therefore, the 4G base station and the 5G base station can be In the EN-DC state, the 4G reception signal and the 5G reception signal can 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, Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, NFC (Near Field Communication), by using at least one of Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus) technology, it can support short-range communication. The short-range communication module 114 may be provided between the electronic device 100 and a wireless communication system, between the electronic device 100 and other electronic devices 100, or through the electronic device 100 through wireless area networks. ) And other electronic devices 100 or a network in which an external server is located may support wireless communication. The short-range wireless communication network may be wireless personal area networks (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 by a device-to-device (D2D) method between electronic devices without going through a base station.

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

The location information module 114 is a module for acquiring a location (or current location) of an electronic device, and representative examples thereof include a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, if the electronic device utilizes a GPS module, the position of the electronic device may be acquired using a signal transmitted from a GPS satellite. As another example, when the Wi-Fi module is used as an electronic device, the location of the electronic device may be acquired based on information of a 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 of other modules of the wireless communication unit 110 in order to obtain data regarding the location of the electronic device by substitution or additionally. The location information module 115 is a module used to obtain a 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, when the electronic device utilizes the 5G wireless communication module 112, the location of the electronic device may be obtained based on the information of the 5G wireless communication module and the 5G base station that transmits or receives the wireless signal. In particular, the 5G base station in the millimeter wave (mmWave) band is deployed in a small cell having a small coverage, so it is advantageous to acquire the location of the electronic device.

The input unit 120 may include a camera 121 for inputting a video signal or a video input unit, a microphone for inputting an audio signal (microphone 122), or an audio input unit, a user input unit 123 for receiving information from a user, for example , A touch key, a mechanical key, and the like. The voice data or image data collected by the input unit 120 may be analyzed and processed by 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, surrounding environment information 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 G-sensor, gyroscope sensor, motion sensor, RGB sensor, infrared sensor (IR sensor), fingerprint scan sensor, ultrasonic sensor , Optical sensor (e.g., camera (see 121)), microphone (see 122, battery), battery gauge, environmental sensor (e.g. barometer, hygrometer, thermometer, radioactivity sensor, Thermal sensor, gas sensor, etc.), chemical sensors (for example, electronic nose, health care sensor, biometric sensor, etc.). Meanwhile, the electronic device disclosed in this specification may combine and use information sensed by at least two or more of these sensors.

The output unit 150 is for generating output related to vision, hearing, or tactile sense, and includes at least one of a display unit 151, an audio output unit 152, a hap tip module 153, and an optical output unit 154 can do. The display unit 151 may form a mutual layer structure with the touch sensor or may be integrally formed, thereby realizing a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the electronic device 100 and a user, and at the same time, provide an output interface between the electronic device 100 and the user.

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

Also, the memory 170 stores data supporting various functions of the electronic device 100. The memory 170 may store a number of application programs (application programs) driven by the electronic device 100, data for operating the electronic device 100, and instructions. At least some of these applications can be downloaded from external servers via 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 (for example, an incoming call, a calling function, a message reception, and a calling function). Meanwhile, the application program may be stored in the memory 170 and installed on the electronic device 100 to be driven by the controller 180 to perform an operation (or function) of the electronic device.

The controller 180 controls the overall operation of the electronic device 100 in addition to the operations related to the application program. The controller 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the above-described components or by driving an application program stored in the memory 170.

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

Under the control of the controller 180, the power supply unit 190 receives external power and internal power to supply 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.

At least some of the 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. Further, 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 terminal body in the form of a bar. However, the present invention is not limited to this, and may be applied to various structures such as a watch type, a clip type, a glass type, or a folder type, a flip type, a slide type, a swing type, a swivel type to which two or more bodies are movably coupled. . Although related to a specific type of electronic device, the 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 illustrated, the electronic device 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

A display unit 151 is disposed on the front of the terminal body to output information. As illustrated, the window 151a of the display unit 151 is 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 also be mounted on the rear case 102. Electronic components that can be mounted on the rear case 102 include a removable battery, an identification module, 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. Therefore, 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 surface of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the engagement. Meanwhile, an opening for exposing the camera 121b or the sound output unit 152b to the outside may be provided in the rear cover 103.

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, the first and second units Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, and an interface unit 160 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) or GUI (Graphic User Interface) information according to the execution screen information. .

Also, two or more display units 151 may be present depending on the implementation form of the electronic device 100. In this case, the electronic devices 100 may have a plurality of display units spaced apart or integrally disposed on one surface, or may be disposed on different surfaces.

The display unit 151 may include a touch sensor that senses a touch on the display unit 151 so that a control command can be input by a touch method. Using this, when a touch is made to the display unit 151, the touch sensor detects the touch, and the controller 180 can be configured to generate a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, or an instruction or designable menu item 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 operation unit 123a.

The first sound output unit 152a may be implemented as a receiver that delivers 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. ).

The light output unit 154 is configured to output light to notify when an event occurs. Examples of the event include message reception, call signal reception, missed calls, alarm, schedule notification, email reception, information reception through an application, and the like. The control unit 180 may control the light output unit 154 so that the output of light is terminated when the user's event confirmation is detected.

The first camera 121a processes an image frame of a still image or video obtained by an image sensor in a shooting 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 operation units 123a and 123b are examples of the user input unit 123 operated 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 the device while receiving a tactile feeling, such as touch, push, scroll. Also, the first and second manipulation units 123a and 123b may be employed in such a way that the user operates without a tactile feeling through a proximity touch, a hovering touch, or the like.

Meanwhile, the electronic device 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the 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, other sounds, and the like. The microphone 122 may be provided at a plurality of locations and configured to receive stereo sound.

The interface unit 160 is a passage 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 other devices (eg, earphones, external speakers), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port (Bluetooth) Port, 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 that accommodates 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 side of the terminal body. In this case, the second camera 121b has a shooting 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, images may be captured in a variety of ways using a plurality of lenses, and better quality images may be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. When the flash 124 photographs the subject with the second camera 121b, light is directed 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, or may be used to implement a speakerphone mode during a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be built in the terminal body or may be formed in the case. Meanwhile, a plurality of antennas connected to the 4G wireless communication module 111 and the 5G wireless communication module 112 may be disposed on the side of the terminal. Alternatively, the antenna may be formed of 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.

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

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

Hereinafter, embodiments of a multi-transmission system structure according to the present invention and an electronic device having the same, in particular, a power amplifier and an electronic device having the same in a heterogeneous radio system will be described with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential 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. Also, the electronic device may further include a modem (Modem 400) and an application processor (AP). Here, the modem (Modem, 400) and the application processor (AP, 500) is physically implemented in one chip, it may be implemented in a logical and functionally separated form. However, the present invention is not limited thereto, and may be implemented in the form of physically separated chips depending on the application.

Meanwhile, the RFIC 250 and the modem 400 may be referred to as a transceiver circuit (250) and a baseband processor (400), respectively.

Meanwhile, the electronic device includes a plurality of low noise amplifiers (LNAs) 410 to 440 at the receiver. Here, the first power amplifier 210, the second power amplifier 220, the control unit 250 and the plurality of low noise amplifiers 310 to 340 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 4G communication systems and 5G communication systems, respectively.

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 separated 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 400 can be simplified.

Meanwhile, when the RFIC 250 is configured as a 4G/5G separated type, it may be referred to as a 4G RFIC and a 5G RFIC, respectively. In particular, when the band difference between the 5G band and the 4G band is large, such as when the 5G band is composed of a millimeter wave band, the RFIC 250 may be configured as a 4G/5G separated type. As described above, when the RFIC 250 is configured as a 4G/5G separated type, there is an advantage that the 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 separated type, it is possible that the 4G RFIC and the 5G RFIC are logically and functionally separated and physically implemented in one chip.

On the other hand, the application processor (AP, 500) is configured to control the operation of each component of the electronic device. Specifically, the application processor (AP, 500) may control the operation of each component of the electronic device through the modem 400.

For example, the modem 400 may be controlled through a power management IC (PMIC) for low power operation of an electronic device. Accordingly, the modem 400 may operate the power circuits of the transmitter and receiver through the RFIC 250 in a low power mode.

In this regard, when it is determined that the electronic device is in the idle mode, the application processors AP and 500 may control the RFIC 250 through the modem 300 as follows. For example, if the electronic device is in the idle mode, at least one of the first and second power amplifiers 110 and 120 operates in the low power mode or is turned off (RFIC) through the modem 300 250 can be controlled.

According to another embodiment, when the electronic device is in a low battery mode, the application processor AP, 500 may control the modem 300 to provide wireless communication capable of low-power communication. For example, when the electronic device is connected to a plurality of entities among a 4G base station, a 5G base station, and an access point, the application processor AP 500 may control the modem 400 to enable wireless communication at the lowest power. Accordingly, even if the throughput is slightly sacrificed, the application processors AP and 500 may control the modem 400 and the RFIC 250 to perform short-range communication using only the short-range communication module 113.

According to another embodiment, if the remaining battery power of the electronic device is greater than or equal to a threshold, the modem 300 may be controlled to select an optimal air interface. For example, the application processor (AP, 500) may control the modem 400 to receive through both the 4G base station and the 5G base station according to the remaining battery power and available radio resource information. At this time, the application processor (AP, 500) may receive the remaining battery information from the PMIC, the available radio resource information from the modem 400. Accordingly, if the remaining battery power and available radio resources are sufficient, the application processors AP and 500 may control the modem 400 and the RFIC 250 to receive through both the 4G base station and the 5G base station.

Meanwhile, the multi-transceiving system of FIG. 2 may integrate a transmitter and a receiver of each radio system into one transceiver. Accordingly, there is an advantage in that the circuit part that integrates the two types of system signals can be eliminated at the RF front-end.

In addition, since the front end components can be controlled by an integrated transmission/reception unit, it is possible to integrate the front end components more efficiently when the transmission/reception systems are separated for each communication system.

In addition, when it is separated for each communication system, it is impossible to control other communication systems as necessary, or it is impossible to efficiently allocate resources because the system delay is increased. On the other hand, the multi-transmission/reception system as shown in FIG. 2 can control other communication systems as necessary, and has the advantage of efficient resource allocation because it can 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 5G communication system operates in the 4G band or the Sub6 band, the first and second power amplifiers 220 are operable in both the first and second communication systems.

On the other hand, when the 5G communication system operates in the millimeter wave (mmWave) band, the first and second power amplifiers 210 and 220 may operate in the 4G band, and the other in the millimeter wave band. have.

Meanwhile, two different wireless communication systems can be implemented with one antenna by combining the transmitting and receiving unit and the transmitting and receiving antenna. At this time, 4x4 MIMO can be implemented using 4 antennas as shown in FIG. 2. At this time, 4x4 DL MIMO may be performed through downlink (DL).

Meanwhile, if the 5G band is a 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. At this time, 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 may be implemented using two antennas connected to the first power amplifier 210 and the second power amplifier 220 among the four antennas. At this time, 2x2 UL MIMO (2 Tx) may be performed through UL. Or, it is not limited to 2x2 UL MIMO, and can be implemented in 1 Tx or 4 Tx. At this time, 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 from each of one or two transmission paths, and the branched transmission signal may be connected to a plurality of antennas.

Meanwhile, a switch-type splitter or a power divider is built in the RFIC corresponding to the RFIC 250, so there is no need for a separate component to be placed outside, thereby improving component mountability. Can. Specifically, a transmitter (TX) of two different communication systems can be selected by using a single pole double throw (SPDT) switch inside the RFIC corresponding to the controller 250.

Also, an electronic device operable 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 the signals of the transmission band and the reception band from each other. At this time, signals of a transmission band transmitted through the first and second power amplifiers 210 and 220 are applied to the antennas ANT1 and ANT4 through the first output ports of the duplexer 231. On the other hand, the signals of the reception band received through the antennas ANT1 and ANT4 are received by the low noise amplifiers 310 and 340 through the second output port of the duplexer 231.

The filter 232 may be configured to pass signals in a transmission band or a reception band and block signals in the other band. In this case, the filter 232 may be composed of 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 signals in the transmission band or only signals in the reception band depending on the control signal.

The switch 233 is configured to deliver either a transmit signal or a receive signal. In one 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 duplex (TDD) method. At this time, the transmission signal and the reception signal are signals of the same frequency band, and accordingly, the duplexer 231 may be implemented in a circulator form.

Meanwhile, in another embodiment of the present invention, the switch 233 is also applicable to a frequency division multiplexing (FDD) method. At this time, the switch 233 may be configured in the form of a double pole double throw (DPDT) to connect or block the transmission signal and the reception signal, respectively. Meanwhile, since the transmission signal and the reception signal can be separated by the duplexer 231, the switch 233 is not necessary.

Meanwhile, the electronic device according to the present invention may further include a modem 400 corresponding to the control unit. In this case, the RFIC 250 and the modem 400 may be referred to as a first controller (or first processor) and a second controller (second processor), respectively. Meanwhile, the RFIC 250 and the modem 400 may be implemented as physically separated circuits. Alternatively, the RFIC 250 and the modem 400 may be physically divided into logical or functional circuits.

The modem 400 may perform control and signal processing for transmission and reception of signals through different communication systems through the RFIC 250. The modem 400 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 400 may control the RFIC 250 to transmit and/or receive signals through the first communication system and/or the second communication system at specific time and frequency resources. 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 reception circuits including the first to fourth low noise amplifiers 310 to 340 to receive a 4G signal or a 5G signal in a specific time period.

On the other hand, the specific operation and function of the electronic device having a receiving amplification unit according to the present invention equipped with a multi-transmission and reception system as shown in FIG. 2 will be described below.

Meanwhile, the electronic device according to the present invention can operate in a plurality of communication systems. Specifically, the electronic device according to the present invention is operable in a first communication system and a second communication system. For example, the first communication system and the second communication system may be 4G (LTE) communication systems and 5G communication systems, but are not limited thereto and may be changed according to application.

Meanwhile, FIG. 3 shows a detailed configuration of an electronic device operable in a plurality of communication systems according to the present invention. The electronic device includes a transceiver circuit 1250, receive amplifiers 1310 to 1340, a first receive amplifier 1351, a second receive amplifier 1352, and a baseband processor 1400.

Here, the transceiver circuit 1250 may be referred to as an RFIC 1250, but may also perform some functions of IFIC. Meanwhile, the baseband processor 1400 may be referred to as a control unit, a communication processor (CP), or a modem. Also, the application processor 1500 may be referred to as an AP or a second control unit.

In the present invention, as a countermeasure against two electric field differences between a 4G reception signal and a 5G reception signal, an individual gain control LNA of 1 in 2 out type is constructed. Accordingly, there is an advantage that the separately amplified/processed/controlled received signal through the two output terminals can be separately input to the first and second receive amplifiers 1351 and 1352 in the transceiver circuit 1250.

Specifically, the present invention is to solve a problem when a signal strength difference between a 4G signal and a 5G signal occurs in dual connectivity within the same (or different) frequency band of 4G + 5G. In this case, when amplifying with the same gain using a common LNA, it is to prevent a problem that is excessively amplified in a large input signal.

Accordingly, in the present invention, in order to prevent the problem of saturation (saturation) in the rear stage due to excessive amplification in a large input signal, it is to propose a method for amplifying with different gains through one LNA for each 4G and 5G signal.

Specifically, the items to be claimed in the present invention may include the following components. However, the present invention is not limited thereto, and some components may be omitted or the configuration may be partially changed or combined with other components depending on the application.

1) A reception configured to amplify the first signal and the second signal to different gain values (G0 and G1) based on a difference in magnitude between the first signal (4G reception signal) and the second signal (5G reception signal) Amplifying section (1310 to 1340)

2) Modem (baseband processor) 1400 for controlling the reception amplifiers 1310 to 1340 to have different gain values

3) A signal distribution unit configured to have a phase difference of 90 degrees between the first and second transistors of the receiving amplifiers 1310 to 1340 (1312 in FIG. 4).

Meanwhile, the receiving amplifiers 1310 to 1340 may amplify the first signal of the first communication system and the second signal of the second communication system with different gain values, and output the data through the first output and the second output, respectively. have. At this time, the number of receive amplifiers is not limited to 4, and can be expanded from 1 to 2, 4, 6, 8, etc. in consideration of DL MIMO.

Meanwhile, since two or more MIMO receptions are also extended forms of two MIMO receptions, hereinafter, description will be made on the basis of two reception amplification units 1310 and 1340, which are two reception amplification units. In this regard, when the description is based on the reception amplification unit 1310, which is one reception amplification unit, it is applicable to DL MIMO having two or more reception amplification units.

Meanwhile, the baseband processor 1400 amplifies the first signal and the second signal to different gain values (eg, G ₁ and G ₂ ) based on the difference in size between the first signal and the second signal. It is possible to control the receiving amplifier 1310, 1340. Here, the receiving amplifying units 1310 and 1340 are front-end receiving amplifying units and may also be referred to as a low-noise amplifying unit (LNA, 1310, 1340).

On the other hand, Figure 4 shows a detailed configuration of a receiving amplifier having two output terminals according to the present invention. 3 and 4, the reception amplification unit 1310 may include an input unit 1311, a signal distribution unit 1312, a first reception amplification unit 1313, and a second reception amplification unit 1314. .

The input unit 1311 has an input terminal, and the internal transistor Q can be connected to the signal distribution unit. At this time, the signal distribution unit 1312 is configured to distribute the low-noise amplified signal to the first output and the second output. Here, the signal distribution unit 1312 may distribute the first output and the second output to have a 90-degree phase difference, and may also be referred to as a balun filter.

Meanwhile, the input of the signal distribution unit 1312 is connected to the emitter of the internal transistor Q of the input unit 1311, so that the output of the input unit 1311 may be transmitted to the signal distribution unit 1312. At this time, a capacitor C1 and an inductor L1 are disposed between the input terminal of the input unit 1311 and the base terminal of the internal transistor Q, so that it can operate as an input matching unit. In addition, the input matching unit may be configured to enable optimization of wideband matching and low noise characteristics by a plurality of capacitors C2, C3, and C7 and a resistor R1.

Meanwhile, as described above, the signal distribution unit 1312 is configured to distribute the first output and the second output to have a 90 degree phase difference, and may operate as a balun filter.

As described above, in the present invention, the signal distribution unit 1312 corresponding to the balun filter uses a balanced signal 90 degrees out of phase with the original signal. Therefore, there is an advantage that the isolation characteristics between the first and second signals of the first and second communication systems, which are different communication systems, can be improved.

To this end, the signal distribution unit 1312 may be configured such that the input is connected to the transistor output of the reception amplification unit 1310, and the first output and the second output have a phase difference of 90 degrees.

Meanwhile, the first reception amplification unit 1313 is connected to the first output of the signal distribution unit 1312, and is configured to amplify (low noise) the first signal of the first communication system with a gain of G ₁ . In addition, the second receiving amplifier unit 1314 is connected to the second output of the signal distributor 1312, a is configured to amplify the second signal of the second communication system with a gain of G _2.

An inductor L3 and a capacitor C5 are disposed between the output terminal of the first receiving amplifier 1313 and the first output of the signal distribution unit 1312 to operate as a first output matching unit. In addition, the first output matching unit is configured to enable dynamic control of wideband matching and gain values in the 4G band by the plurality of capacitors C5, C6, and C8 and the first variable resistor R1.

An inductor L3 and a capacitor C5 are disposed between the output terminal of the second receiving amplifier 1314 and the second output of the signal distribution unit 1312 to operate as a second output matching unit. In addition, the second output matching unit is configured to enable dynamic control of wideband matching and gain values in the 5G band by the plurality of capacitors C5, C6, and C8 and the second variable resistor R2. On the other hand, the first and second output matching units of the first and second receiving amplifying units 1313 and 1314, except for the variable resistor, other elements are marked with the same symbol, but can be configured to have different capacitance values and inductor values. Do.

On the other hand, unlike the present invention, in the 1 in 1 out LNA structure having one input and one output, there is a problem that can amplify two radio (radio) signals only with the same gain. On the other hand, the 1 in 2 out LNA structure having one input and two outputs as in the present invention has the advantage of being able to individually perform gain control for received signals of different sizes of the first and second communication systems. have. To this end, the LNAs of the receiving amplifiers 1311 and 1314 according to the present invention can be divided into two different signals that are phase-shifted by applying a Balun Filter.

At this time, there is an advantage that the gain and the gain signal can be individually adjusted through the variable resistors R ₁ and R ₂ of the respective emitters of the original signal and the 90-phase phase shifted balance signal. Meanwhile, the transceiver circuit 1250 may be configured such that the first output (out ₁ ) and the second output (out ₂ ) of the receiving amplifier 1310 are input. Accordingly, the transceiver circuit 1250 may individually adjust resistance values of the variable resistors R ₁ and R ₂ connected to the first output out ₁ and the second output out ₂ .

Meanwhile, a first receive amplifier 1351 and a second receive amplifier 1352 connected to the first output out ₁ and the second output out ₂ may be included in the transceiver circuit 1250. It is not limited. Alternatively, the first receive amplifier 1351 and the second receive amplifier 1352 are connected to the receive amplifier 1311 and may be disposed outside the transceiver circuit 1250.

At this time, as the first and second receive amplifiers 1351 and 1352 are included in the transceiver circuit 1250, the transceiver circuit 1250 includes the first and second receive amplifiers 1351 and 1352 in the same module. It has the advantage of being able to quickly and accurately determine whether it is saturated.

On the other hand, the above-described receiving amplification unit 1310 is configured to operate in both the first and second communication systems, but is not limited thereto, and may be configured by two receiving amplification units. On the other hand, the first and second receive amplifiers 1351 and 1352 are configured to operate in the first and second communication systems, respectively, but are not limited thereto, and may be configured as one common receive amplifier.

As described above, when the first and second receive amplifiers 1351 and 1352 are configured as one common receive amplifier, they may be configured in a 1 in 2 out structure like the receive amplifier 1310. Therefore, it is possible to amplify signals with different gain values for each 4G/5G signal.

Meanwhile, the saturation of the first and second receive amplifiers 1351 and 1352 may be finally determined by the baseband processor 1400 through the transceiver circuit 1250. In this regard, the baseband processor 1400 may predict the input signal size to the first and second receive amplifiers 1351 and 1352 according to the signal level in the baseband. Alternatively, the transceiver circuit 1250 may transmit the input signal magnitude value to the second receive amplifiers 1351 and 1352 to the baseband processor 1400.

Accordingly, the baseband processor 1400 may determine whether any one of the first and second receive amplifiers 1351 and 1352 is to be saturated. At this time, the baseband processor 1400 may control the transceiver circuit 1250 such that the difference between the first and second signals input to the first and second receive amplifiers 1351 and 1352 is less than or equal to a threshold. As described above, as the difference between the first and second signals input to the first and second receive amplifiers 1351 and 1352 is controlled to be equal to or less than a threshold, saturation of the first and second receive amplifiers 1351 and 1352 is performed. Can be prevented.

To this end, the ratios of the first and second variable resistance variable resistors R ₁ and R ₂ connected to the first and second outputs of the signal distribution unit 1312 are respectively the magnitudes of the received first and second signals. It may be determined according to whether the difference is greater than or equal to the second threshold. At this time, the ratio of the first and second variable resistors R ₁ and R ₂ may be adjusted based on the difference in magnitude between the received first signal and the second signal.

Specifically, the transceiver circuit 1250 determines whether |r ₁ -r ₂ |, which is a difference between the received first signal and the second signal, is greater than or equal to a second threshold. In this case, r ₁ and r ₂ are received signal sizes of the first signal and the second signal received through the input unit 1311.

Accordingly, the baseband processor 1400 is the first and second variable resistors (R ₁ , R) when |r ₁ -r ₂ |, which is a difference in magnitude between the received first signal and the second signal, is greater than or equal to a second threshold value. _The transmitter/receiver circuit 1250 may be controlled to adjust the ratio of ₂ ).

For example, suppose that the first signal of the first communication system corresponding to LTE is larger than the second signal of the second communication system corresponding to 5G by x dB. In order to detect the magnitude of the received signal, a coupler and a power detector may be provided in front of the receiving amplifier 1310.

Accordingly, the receiving amplifier 1310 may amplify the first signal with the gain G ₁ and amplify the second signal with the gain G ₂ . Therefore, the baseband processor 1400 increases the ratio of the first and second variable resistors R ₁ and R ₂ so that the gain G ₂ for the second signal is greater by x dB than the gain G ₁ for the first signal. The transmitter/receiver circuit 1250 may be controlled to adjust.

On the other hand, when the magnitude difference between the amplified first signal and the second signal is greater than or equal to a threshold, the first and second variable resistors R ₁ connected to the first and second outputs of the signal distribution unit 1312, respectively. The ratio of R ₂ ) can be adjusted. As such, in order to detect the magnitudes of the amplified first signal and the second signal, a coupler and a power detector may be provided in front of the first and second receive amplifiers 1351 and 1352. Accordingly, the ratio of the first and second variable resistors R ₁ and R ₂ may be adjusted based on a difference in magnitude between the amplified first signal and the second signal.

Specifically, the transceiver circuit 1250 may determine whether |G ₁ *r ₁ -G ₂ *r ₂ |, which is a difference in magnitude between the amplified first signal and the second signal, is greater than or equal to a threshold. Accordingly, if the baseband processor 1400 is |G ₁ *r ₁ -G ₂ *r ₂ |, which is the difference between the amplitude of the amplified first signal and the second signal, is greater than or equal to a threshold, the first and second variable resistor The transmitter/receiver circuit 1250 may be controlled to further adjust the ratio of. In this case, r ₁ and r ₂ are received signal sizes of the first signal and the second signal received through the input unit 1311. Further, G ₁ and G ₂ are dynamically controlled gain values to amplify the received first and second signals with low noise.

For example, suppose that the first signal of the first communication system corresponding to LTE has amplified signal size by y dB greater than the second signal of the second communication system corresponding to 5G.

Accordingly, the receiving amplifier 1310 may amplify the first signal with the gain G ₁ and amplify the second signal with the gain G ₂ . Therefore, the baseband processor 1400 is the first and second variable resistor (R) such that the magnitude of the amplified second signal G ₂ *r ₂ is greater than y dB by the magnitude of the amplified first signal G ₁ *r _{1. 1} , R ₂ ), the transceiver circuit 1250 may be controlled to adjust the ratio.

In this regard, based on the magnitudes of the amplified first and second signals input through the first and second receive amplifiers 1351 and 1352, at least one of the first and second receive amplifiers 1351 and 1352 The saturation of the transmitter/receiver circuit 1250 or the baseband processor 1400 may be determined.

In this regard, if it is determined that the first receive amplifier 1351 is saturated, the gain G ₁ of the receive amplifier 1310 for the first signal may be reduced to G ₁ -DG. Alternatively, if it is determined that the first receive amplifier 1351 is saturated, G ₁ is reduced to G ₁ -DG ₁ and the gain G ₂ for the second signal is increased by G ₁ +DG ₂ in a non-saturated range. Can.

On the other hand, if it is determined that the second receive amplifier 1352 is saturated, the gain G ₂ of the receive amplifier 1310 for the second signal may be reduced to G ₂ -DG. Alternatively, if it is determined that the second receive amplifier 1352 is saturated, G ₂ is reduced to G ₂ -DG ₂ and the gain G ₁ for the first signal is increased by G ₁ +DG ₁ in a non-saturated range. Can.

Meanwhile, the above-described received signal-based gain adjustment method and the amplified signal-based gain adjustment method may be used in combination. For example, when an electronic device initially connects to a 4G base station and a 5G base station, it is necessary to report the magnitudes of the first and second signals received by the terminal to each base station. Accordingly, it is possible to perform a method for adjusting gain based on a received signal at the time of initial access and to compensate for received signals of different sizes according to the distance between the base stations and propagation characteristics.

However, after the initial access, the terminal receives the first and second signals from the 4G base station and the 5G base station, and as the gain value of the receiving amplifier 1310 increases, the amplification signal based gain adjustment method provides more accurate gain control. It has the advantage of being able to provide.

In addition, by performing the amplification signal-based gain adjustment method and the reception signal-based gain adjustment method together, the gain of the reception amplification unit 1310 is dynamically adjusted in advance before the first and second reception amplifiers 1351 and 1352 are saturated. It has the advantage of being controllable.

On the other hand, according to another embodiment of the present invention, the transceiver circuit may be configured separately for each communication system. In this case, the circuits separately configured for transmission/reception include a case where they are logically separated in addition to a case where they are physically separated.

In this regard, FIG. 5 shows a detailed configuration of an electronic device having a separate transceiver circuit according to another embodiment of the present invention. The electronic device includes a first transceiver circuit 1250a, a second transceiver circuit 1250b, receive amplifiers 1310 to 1340, a first receive amplifier 1351, a second receive amplifier 1352, and a control unit 1400 It includes. Meanwhile, the contents previously described in FIGS. 3 and 4 may also be applied to FIG. 5.

The receiving amplifiers 1310 and 1340 are configured to amplify the first signal of the first communication system and the second signal of the second communication system with different gain values, and output the signals through the first output and the second output, respectively. Meanwhile, the control unit 1400 controls the reception amplification units 1310 and 1340 so that the first signal and the second signal are amplified to different gain values based on the size difference between the first signal and the second signal. can do.

In this regard, referring to FIGS. 4 and 5, the transceiver circuit may be configured such that the first output and the second output of the receiving amplifiers 1310 and 1340 are input. At this time, the first transceiver circuit 1250a is input to the first output of the receiving amplifier 1310, 1340, and individually adjusts the resistance value of the variable resistor R ₁ connected to the first output. On the other hand, the second transceiver circuit 1250b is input to the second output of the receiving amplifier 1310, 1340, and individually adjusts the resistance value of the variable resistor R ₂ connected to the second output.

Meanwhile, a first receive amplifier 1351 and a second receive amplifier 1352 connected to the first output and the second output are provided in the first transceiver circuit 1250a and the second transceiver circuit 1250b, respectively. Can. At this time, the first reception amplifier 1351 may operate to further amplify the low-noise amplified first signal in the first communication system, which is a 4G communication system. In addition, the first receive amplifier 1352 may operate to further amplify the second signal with low noise in the second communication system, which is a 5G communication system.

Meanwhile, the control unit 1400 may determine whether one of the first and second reception amplifiers 1351 and 1352 is to be saturated. At this time, the control unit 1400 controls the first and second receiving amplifiers by controlling the circuit of the transmitting and receiving unit so that the difference between the first and second signals input to the first and second receiving amplifiers 1351 and 1352 is equal to or less than a threshold value. Saturation of (1351, 1352) can be prevented.

Specifically, the control unit 1400, the first and second receiving amplifier (1351, 1352), the first and second transmitting and receiving circuits (1250a, 1250b) so that the difference between the first and second signals input to the threshold value or less Can be controlled. Accordingly, there is an advantage that only a portion of the transceiver circuit corresponding to an amplifier in which saturation is expected among the first and second receive amplifiers 1351 and 1352 can be controlled.

In the above, electronic devices having a receiving amplifier in a plurality of communication systems according to the present invention have been described. Hereinafter, a method for dynamically controlling a reception amplification unit in a plurality of communication systems according to another aspect of the present invention will be described.

In this regard, FIG. 6 shows a flowchart of a method for dynamically controlling a receiving amplification unit in a plurality of communication systems according to the present invention.

3 and 6, a method of dynamically controlling the receiving amplification unit may be performed by a baseband processor as a control unit and a transceiver circuit. The method includes a signal reception process (S110), a gain setting process (S120), a saturation determination process (S130), and a gain control process (S140). At this time, it is not limited to the order of the listed processes, but the order can be changed according to the application. For example, an initial gain setting process (S120) for a receiving amplifier for signal reception and a receiving amplifier at a subsequent stage may be performed first.

In the signal reception process (S110 ), the first signal of the first communication system and the second signal of the second communication system are received through the reception amplifier. In this case, the sizes of the first and second signals received from the baseband processor and the transceiver circuit may be signal sizes reflecting the initially set gain value. Alternatively, in the signal reception process (S110 ), the first and second signals may be received by a coupler and a power detector in front of the reception amplifier.

Meanwhile, in the gain setting process (S120 ), the first signal and the second signal may be set to be amplified with different gain values G ₁ and G ₂ based on a difference in size between the first signal and the second signal. Then, in the saturation determination process (S130), based on the magnitudes of the amplified first and second signals input through the first and second receive amplifiers, whether at least one of the first and second receive amplifiers is saturated Can judge.

Therefore, when it is determined that the first receive amplifier is saturated, in the gain control process (S140 ), the gain G ₁ of the receive amplifier for the first signal may be reduced to G ₁ -DG. Alternatively, if it is determined that the first receive amplifier is to be saturated, G ₁ may be reduced to G ₁ -DG ₁ and gain G ₂ for the second signal may be increased by G ₂ +DG ₂ in a non-saturated range.

On the other hand, if it is determined that the second receive amplifier is saturated, in the gain control process S140, the gain G ₂ of the receive amplifier for the second signal may be reduced to G ₂ -DG. Alternatively, if it is determined that the second receive amplifier is to be saturated, G ₂ may be reduced to G ₂ -DG ₂ and gain G ₁ for the first signal may be increased by G ₁ +DG ₁ in a non-saturation range.

In the above, an electronic device having a reception amplification unit in a plurality of communication systems according to the present invention and a control method thereof have been described. The technical effects of the electronic device having a reception amplification unit in a plurality of communication systems and a control method thereof are as follows.

An electronic device having a reception amplification unit according to the present invention provides an electronic device that dynamically maintains the performance of the reception unit by dynamically controlling the gain of each reception amplification unit, despite the difference in the received signal size of different communication systems It has the advantage of being able to.

According to the invention. When amplifying a received signal having a high received signal level, an electronic device can be configured and controlled to dynamically control the gain of the received signal to prevent saturation of the receiving amplification part of the next stage. It has the advantage of being able to.

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

In the context of the present invention described above, the design of the transmission unit including the power amplifier and the transceiver and the reception unit including the low-noise amplifier and the RFIC and driving thereof can be implemented as computer-readable codes on a medium in which a program is recorded. The computer-readable medium includes all kinds of recording devices in which data readable by a computer system is stored. Examples of computer-readable media include a hard disk drive (HDD), solid state disk (SSD), silicon disk drive (SDD), ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage device. This includes, and is also implemented in the form of a carrier wave (eg, transmission over the Internet). In addition, the computer may include a control unit 180 of the terminal. Accordingly, the above detailed description should not be construed as limiting in all respects, but should be considered illustrative. The scope of the invention should be determined by rational interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

Claims (16)

1. In electronic devices,

   A receiving amplifying unit for amplifying the first signal of the first communication system and the second signal of the second communication system to different gain values, and outputting them through the first output and the second output, respectively; And

   And a baseband processor that controls the receiving amplifier so that the first signal and the second signal are amplified to different gain values based on the difference in size between the first signal and the second signal. Electronics.
2. According to claim 1,

   Further comprising a transceiver circuit (transceiver circuit) configured to input the first output and the second output of the receiving amplifier,

   The transmitting/receiving unit circuit individually adjusts resistance values of the variable resistors connected to the first output and the second output.
3. According to claim 2,

   The transmission/reception circuit further includes first and second reception amplifiers connected to the first output and the second output, respectively.
4. According to claim 3,

   If the baseband processor determines that any one of the first and second receive amplifiers is to be saturated,

   Controlling the transceiver circuit so that the difference between the first and second signals input to the first and second receive amplifiers is equal to or less than a threshold value, so that saturation of the first and second receive amplifiers is prevented. device.
5. According to claim 2,

   The receiving amplification unit,

   The input is connected to the transistor output of the receiving amplifier,

   And a signal distribution unit configured to have the first output and the second output having a phase difference of 90 degrees.
6. The method of claim 5,

   The ratio of the first and second variable resistors respectively connected to the first output and the second output of the signal distribution unit is equal to or greater than a second threshold value between the received first signal and the second signal.

   And the ratio of the first and second variable resistors is adjusted based on a difference in magnitude between the received first signal and the second signal.
7. The method of claim 6,

   The ratio of the first and second variable resistors respectively connected to the first output and the second output of the signal distribution unit is when a difference in magnitude between the amplified first signal and the second signal is greater than or equal to a threshold value,

   And the ratio of the first and second variable resistors is adjusted based on a difference in magnitude between the amplified first signal and the second signal.
8. The method of claim 7,

   The receiving amplification unit,

   An input unit connected to the signal distribution unit;

   A first reception amplification unit connected to the first output of the signal distribution unit and amplifying a first signal of the first communication system with a gain of G ₁ ; And

   And a second reception amplification unit connected to the second output of the signal distribution unit and amplifying the second signal of the second communication system with a gain of G ₂ .
9. The method of claim 8,

   The transceiver circuit,

   It is determined whether or not |r ₁ -r ₂ |, which is a difference in magnitude between the received first signal and the second signal, is greater than or equal to the second threshold,

   Here, the r ₁ and r ₂ is the size of the received signal of the first signal and the second signal received through the input unit, the electronic device.
10. The method of claim 9,

    The baseband processor,

    Controlling the transceiver circuitry to adjust the ratio of the first and second variable resistors when |r ₁ -r ₂ |, which is a difference in magnitude between the received first signal and the second signal, is greater than or equal to the second threshold value. , Electronics.
11. The method of claim 8,

    The transceiver circuit,

    It is determined whether |G ₁ *r ₁ -G ₂ *r ₂ |, which is a difference between the amplitudes of the amplified first signal and the second signal, is greater than or equal to the threshold,

    Here, r ₁ and r ₂ are received signal sizes of the first signal and the second signal received through the input unit, and G ₁ and G ₂ are low-noise amplification of the received first signal and the second signal. An electronic device, which is a dynamically controlled gain value.
12. The method of claim 10,

    The baseband processor,

    If |G ₁ *r ₁ -G ₂ *r ₂ |, which is a difference in magnitude between the amplified first signal and the second signal, is greater than or equal to the threshold, the transmission and reception of the first and second variable resistors are further adjusted. An electronic device that controls secondary circuits.
13. In electronic devices,

    A receiving amplifying unit for amplifying the first signal of the first communication system and the second signal of the second communication system to different gain values, and outputting them through the first output and the second output, respectively; And

    And a control unit controlling the reception amplification unit to amplify the first signal and the second signal to the different gain values based on the difference in magnitude between the first signal and the second signal.
14. The method of claim 13,

    Further comprising a transceiver circuit (transceiver circuit) configured to input the first output and the second output of the receiving amplifier,

    The transmitting/receiving unit circuit individually adjusts resistance values of the variable resistors connected to the first output and the second output.
15. The method of claim 14,

    Further comprising a first receive amplifier and a second receive amplifier respectively connected to the first output and the second output,

    The first receiving amplifier operates to further amplify the amplified first signal in the first communication system, which is a 4G communication system,

    The second receiving amplifier is operated to further amplify the amplified second signal in the second communication system, which is a 5G communication system.
16. The method of claim 15,

    If the controller determines that any one of the first and second receive amplifiers is to be saturated,

    Controlling the circuit of the transceiver so that the difference between the first and second signals input to the first and second receive amplifiers is equal to or less than a threshold value, so that saturation of the first and second receive amplifiers is prevented. device.

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