Electronic device for obtaining reflection coefficient of antenna and operating method thereof

Abstract

The electronic device may comprise: a transceiver including an ADC and a DAC; a coupler connected to the transceiver through a feedback path; at least one memory including instructions; and at least one communication processor for executing the instructions, wherein the at least one communication processor executes the instructions to provide a digital transmission signal to the transceiver, receives a digital feedback signal from the transceiver, and acquires a reflection coefficient on the basis of the digital transmission signal and the digital feedback signal. The DAC may convert the digital transmission signal into an analog signal, and the ADC may convert a signal into a digital signal on the basis of sampling information controlled according to an RB size of the digital transmission signal in order to obtain the digital feedback signal.

Description

Electronic device for obtaining reflection coefficient of antenna and method of operation thereof

[0001] The present disclosure relates to an electronic device for obtaining a reflection coefficient of an antenna and a method of operating the same.

[0002] In wireless communication networks, electronic devices can measure the reflection coefficient of an antenna to determine whether the antenna is abnormal. The electronic device can improve the performance of the antenna by adjusting the impedance of the antenna based on the reflection coefficient. Additionally, the electronic device can use the reflection coefficient to determine whether the electronic device has been gripped by a user. The aforementioned background technology was acquired or acquired during the process of deriving the present disclosure and cannot necessarily be considered publicly known technology prior to the filing of the present disclosure.

[0003] In an aspect of the present disclosure, an electronic device comprises: a transceiver including an ADC and a DAC; a coupler connected to the transceiver via a feedback path; at least one memory including instructions; and at least one communication processor executing the instructions, wherein the at least one communication processor executes the instructions to provide a digital transmission signal to the transceiver, receive a digital feedback signal from the transceiver, and obtain a reflection coefficient based on the digital transmission signal and the digital feedback signal. The DAC may convert the digital transmission signal into an analog signal, and the ADC may convert a signal into a digital signal based on sampling information controlled according to an RB size of the digital transmission signal to obtain the digital feedback signal.

[0004] The digital transmission signal may include a first transmission signal and a second transmission signal, and the digital feedback signal may include a forward signal received by the at least one communication processor in response to providing the first transmission signal and a reverse signal received by the at least one communication processor in response to providing the second transmission signal.

[0005] The above sampling information may include at least one of a sampling rate and a sampling count.

[0006] The at least one communication processor may execute the commands to control the sampling information based on a threshold value of the RB size, control the sampling information as first sampling information based on the RB size exceeding the threshold, and control the sampling information as second sampling information based on the RB size being less than or equal to the threshold.

[0007] The sampling count of the second sampling information may be greater than the sampling count of the first sampling information.

[0008] The sampling rate of the second sampling information may be smaller than the sampling rate of the first sampling information.

[0009] The at least one communication processor may execute the instructions to determine whether the electronic device is gripped using the reflection coefficient.

[0010] The at least one communication processor executes the instructions to display the reflection coefficient on a complex plane, and determines that the electronic device is gripped by a user based on the reflection coefficient displayed outside a circle displayed on the complex plane, the circle being centered on the determined reflection coefficient determined based on when the electronic device is not gripped.

[0011] The above circle may have a center that varies depending on the frequency band and a radius that varies depending on the frequency band.

[0012] The above radius can be determined to be smaller as the frequency band increases.

[0013] The above reflection coefficient is determined based on a ratio between a forward voltage and a reverse voltage, and the forward voltage may be a correlation value between the first transmission signal and the forward signal, and the reverse voltage may be a correlation value between the second transmission signal and the reverse signal.

[0014] According to an aspect of the present disclosure, an electronic device comprises: a transceiver including an analog to digital converter (ADC); a coupler connected to the transceiver via a feedback path; at least one memory storing instructions; And at least one communication processor for executing the above commands, wherein the at least one communication processor controls a sampling rate and a sampling count for converting an analog signal into a digital signal based on whether a resource block size (RB size) of a first transmission signal and a second transmission signal transmitted through the transceiver exceeds a threshold by executing the commands, converts the forward signal and the reverse signal into digital signals through sampling with the controlled sampling rate and the controlled sampling count, obtains a forward voltage based on the first transmission signal and the converted forward signal, obtains a reverse voltage using the second transmission signal and the converted reverse signal, and identifies a reflection coefficient looking at an antenna at an input of a tuner connected to the coupler based on a ratio between the forward voltage and the reverse voltage. The forward signal may be a signal corresponding to the first transmission signal received by the transceiver through the feedback path from the coupler. The reverse signal may be a signal corresponding to the second transmission signal received by the transceiver through the feedback path from the coupler.

[0015] According to one aspect of the present disclosure, a method of operating an electronic device may include providing a digital transmission signal to a transceiver, receiving a digital feedback signal from the transceiver, and calculating a reflection coefficient based on the digital transmission signal and the digital feedback signal. The digital transmission signal may be converted into an analog signal by a DAC of the transceiver (220, 420), and the digital feedback signal may be converted into a digital signal by an ADC of the transceiver (220, 420) based on sampling information controlled according to an RB size of the digital transmission signal.

[0016] The digital transmission signal may include a first transmission signal and a second transmission signal, and the digital feedback signal may include a forward signal received in response to providing the first transmission signal and a reverse signal received in response to providing the second transmission signal.

[0017] The above sampling information may include at least one of a sampling rate and a sampling count.

[0018] The above sampling information can be controlled as first sampling information based on the RB size exceeding a threshold value, and can be controlled as second sampling information based on the RB size being less than or equal to the threshold value.

[0019] The above method of operation may further include an operation in which at least one communication processor executes the instructions to determine whether the electronic device is gripped using the reflection coefficient.

[0020] The operation of determining whether the electronic device is gripped based on the reflection coefficient includes the operation of displaying the reflection coefficient on a complex plane, and the operation of determining that the electronic device is gripped by the user based on the reflection coefficient displayed outside a circle displayed on the complex plane, wherein the circle may be centered on the determined reflection coefficient determined based on when the electronic device is not gripped.

[0021] The above circle may have a center that varies depending on the frequency band and a radius that varies depending on the frequency band.

[0022] According to an aspect of the present disclosure, a non-transitory computer-readable storage medium can store a program that, when executed by at least one processor, performs the method of operation.

[0023] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0024] FIG. 2 is a diagram illustrating a wireless communication system according to one or more embodiments of the present disclosure.

[0025] FIG. 3 is a flowchart and a complex plane diagram illustrating a method for determining whether an electronic device is gripped using a reflection coefficient according to one or more embodiments of the present disclosure.

[0026] FIG. 4 is a diagram illustrating a wireless communication system for explaining reflection coefficient acquisition according to one or more embodiments of the present disclosure.

[0027] FIG. 5 is a diagram illustrating offset compensation according to one or more embodiments of the present disclosure.

[0028] FIG. 6 is a drawing for explaining characteristics according to RB size according to one or more embodiments of the present disclosure.

[0029] FIG. 7 is a diagram for explaining correlation according to RB size according to one or more embodiments of the present disclosure.

[0030] Figure 8 is a drawing for explaining the sampling rate and sampling count and their respective controls.

[0031] Figure 9 is a drawing for explaining the sampling rate and sampling count and their respective controls.

[0032] FIG. 10 is a diagram illustrating a simulation result of a correlation value when the sampling count and sampling rate are varied according to one or more embodiments of the present disclosure.

[0033] FIG. 11 is a flowchart illustrating a method of operating an electronic device according to one or more embodiments of the present disclosure.

[0034] FIG. 12 is a flowchart illustrating a method of operating an electronic device according to one or more embodiments of the present disclosure.

[0035] Hereinafter, embodiments will be described in detail with reference to the attached drawings. In the description with reference to the attached drawings, identical components are assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted.

[0036] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0037] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one or more embodiments, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one or more embodiments, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0038] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. According to one or more embodiments, as at least a part of the data processing or calculations, the processor (120) may store a command or data received from another component (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the command or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one or more embodiments, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor)) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0039] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. According to one or more embodiments, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). According to one or more embodiments, the auxiliary processor (123) (e.g., a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0040] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0041] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0042] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0043] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one or more embodiments, the receiver can be implemented separately from the speaker or as part of the speaker.

[0044] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one or more embodiments, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0045] The audio module (170) can convert sound into an electrical signal, or vice versa. According to one or more embodiments, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0046] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one or more embodiments, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0047] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). According to one or more embodiments, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0048] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one or more embodiments, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0049] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one or more embodiments, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0050] The camera module (180) can capture still images and videos. According to one or more embodiments, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0051] The power management module (188) can manage power supplied to the electronic device (101). According to one or more embodiments, the power management module (188) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0052] A battery (189) may power at least one component of the electronic device (101). According to one or more embodiments, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0053] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one or more embodiments, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0054] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one or more embodiments, the wireless communication module (192) may support a peak data rate (e.g., 20 Gbps or more) for eMBB implementation, a loss coverage (e.g., 164 dB or less) for mMTC implementation, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL) each, or 1 ms or less for round trip) for URLLC implementation.

[0055] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). According to one or more embodiments, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one or more embodiments, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and the external electronic device via the selected at least one antenna. According to one or more embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0056] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one or more embodiments, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0057] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0058] According to one or more embodiments, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one or more embodiments, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network.According to one or more embodiments, an external electronic device (104) or server (108) may be included within the second network (199). The electronic device (101) may be applied to intelligent services (e.g., smart homes, smart cities, smart cars, or healthcare) based on 5G communication technology and IoT-related technology.

[0059] Electronic devices according to various embodiments disclosed herein may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to one or more embodiments disclosed herein are not limited to the aforementioned devices.

[0060] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0061] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one or more embodiments, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0062] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0063] According to one or more embodiments, the method according to various embodiments disclosed in the present document may be provided as a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0064] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0065]

[0066] FIG. 2 is a diagram illustrating a wireless communication system (200) according to one or more embodiments of the present disclosure.

[0067] Referring to FIG. 2, a wireless communication system (200) (e.g., a wireless communication module (192) of FIG. 1) of an electronic device (e.g., an electronic device (101) of FIG. 1) is illustrated.

[0068] The wireless communication system (200) may include a communication processor (CP) (210) (e.g., the auxiliary processor (123) of FIG. 1), a transceiver (220), a power amplifier (PA) (230), a low noise amplifier (LNA) (240), a duplexer (DPX) (250), an antenna switching module (ASM) (260), a coupler (270), a tuner (280), and an antenna (290) (e.g., the antenna module (197) of FIG. 1). Only components related to the present embodiments are illustrated in FIG. 2. Therefore, it will be apparent to those skilled in the art that the wireless communication system (200) may further include other general components in addition to the components illustrated in FIG. 2.

[0069] The communication processor (210) may control other components to transmit and / or receive wireless signals between an external electronic device (e.g., the electronic device (104) of FIG. 1) that is distinct from the electronic device and the electronic device. For example, the communication processor (210) may receive a request from a processor (e.g., the processor (120) of FIG. 1) to transmit data to the external electronic device. In response to the request, the communication processor (210) may transmit a transmission signal (e.g., a digital data signal) having a baseband frequency band based on the corresponding data to the transceiver (220).

[0070] The transceiver (220) may include a digital to analog converter (DAC) (221) and an analog to digital converter (ADC) (223). The transceiver (220) may convert a transmission signal into an analog signal using the DAC (221). The transceiver (220) may convert a reception signal received through the antenna (290) into a digital signal. According to one or more embodiments, the transceiver (220) may convert a signal fed back through the coupler into a digital signal using the ADC (223).

[0071] The PA (230) can amplify the transmission signal input from the transceiver (220). The LNA (240) can amplify the reception signal applied to the antenna (290) and transmit it to the transceiver (220). The DPX (250) can filter the transmission signal and the reception signal, respectively. The ASM (260) can select each band signal.

[0072] The coupler (270) can couple a transmission signal transmitted to the antenna (290) and transmit it to the transceiver (220) through a feedback path.

[0073] A tuner (280) may be connected to a coupler (270). The tuner (280) may adjust the impedance of the antenna (290) to be close to at least one reference impedance based on a tuner code selected or calculated by the processor and / or communication processor (210). The tuner (280) may include one or more of a switch, a resistor, an inductor, or a capacitor.

[0074] In order to determine whether the electronic device is gripped by the user, the reflection coefficient (i.e., gamma) of the antenna (290) may need to be acquired in real time. In other words, the reflection coefficient (gamma) as viewed from the input of the tuner (280) toward the antenna (290) ) may need to be acquired in real time. In this document, grip may refer to a state in which an electronic device is in contact with the user's body. Conversely, if the electronic device is not influenced by any external factors (e.g., not in contact with the user's body), it may be said to be in a free state. Below, we will explain a method for determining whether an electronic device is gripped using the acquired reflection coefficient.

[0075]

[0076] FIG. 3 is a flowchart (300) and a complex plane (310) illustrating a method for determining whether an electronic device is gripped using a reflection coefficient according to one or more embodiments of the present disclosure.

[0077] Referring to FIG. 3, a flowchart (300) and a complex plane (310) are illustrated.

[0078] In the flowchart (300), the operations may be performed sequentially, but are not necessarily performed sequentially. For example, the order of the operations may be changed, and at least two operations may be performed in parallel. The operations depicted in the flowchart (300) may be performed by at least one component of an electronic device (e.g., the electronic device (101) of FIG. 1 ).

[0079] In operation (301), the electronic device can generate a transmission signal.

[0080] An electronic device can transmit a transmission signal generated by an external electronic device (e.g., the electronic device (104) of FIG. 1). At this time, reflection may occur due to an impedance difference between an antenna (e.g., the antenna module (197) of FIG. 1 and the antenna (290) of FIG. 2) and components connected to the antenna.

[0081] In operation (303), the electronic device can calculate a reflection coefficient for the transmitted signal. The electronic device can control the sampling rate and sampling count for the ADC (e.g., the ADC (223) of FIG. 2) of the transceiver (e.g., the transceiver (220) of FIG. 2) based on the RB size of the transmitted signal. Systemically, the memory size is limited, and the forward / reverse signal acquisition time interval and sampling time may need to be within 1 ms to acquire the reflection coefficient. Therefore, the sampling rate and sampling count can be appropriately set. A method for controlling the sampling rate and sampling count based on the RB size will be further described with reference to FIGS. 4 to 9.

[0082] In operation (305), the electronic device can calculate the distance between the center (315) of the circle (311) and the reflection coefficient (317).

[0083] A circle (311) can be a reference for a certain value of a reflection coefficient on a complex plane (310) for determining whether an electronic device is in a grip state. The circle (311) can have as its center a reflection coefficient determined when the electronic device is not gripped by a user. In other words, the circle (311) can have as its center a reflection coefficient determined when the electronic device is in a free state. The center (315) can be determined differently for each frequency band. The center (315) can be determined as an average value of experimental values ​​for each frequency band. However, the method for determining the center (315) described above is only an example, and the present disclosure is not limited thereto. The electronic device can display a circle (311) and a reflection coefficient (317) on the complex plane (310). The electronic device can calculate a distance between the center (315) of the circle (311) and the reflection coefficient (317) on the complex plane (310).

[0084] A formula for calculating the distance between points on a two-dimensional plane can be used. For example, if the center (315) of a circle (311) is ( ) and the reflection coefficient (317) is ( ) will be assumed. At this time, the distance between the center (315) and the reflection coefficient (317) is can be calculated as

[0085] In operation (307), the electronic device can determine whether the distance calculated in operation (305) exceeds the radius (313) of the circle (311).

[0086] The electronic device can determine whether the reflection coefficient (317) exists outside the circle (311).

[0087] According to one or more embodiments, the smaller the radius (313) of the circle (311), the more sensitively the electronic device can react to external influences. For example, the smaller the radius (313) of the circle (311), the more accurately the electronic device can determine that the electronic device has been gripped by a user. For example, in the frequency band N1, as the frequency increases, the change in the reflection coefficient according to whether or not the electronic device has been gripped decreases. In other words, the smaller the radius (313) of the circle (311), the more accurately the electronic device can determine whether or not the electronic device has been gripped. The radius (313) of the circle (311) may be determined differently for each frequency band. The radius (313) may be determined experimentally.

[0088] On the other hand, the larger the radius (313) of the circle (311), the less sensitive the electronic device may be to external influences. For example, the larger the radius (313) of the circle (311), the more likely the electronic device is to determine that it is in a free state. Therefore, it may be important to appropriately set the radius (313) of the circle (311).

[0089] If the distance from the center (315) to the reflection coefficient (317) in the action (309) exceeds the radius (313), the electronic device can determine that the electronic device has been gripped by the user. The electronic device can determine whether the electronic device has been gripped by the user using the reflection coefficient (317) without a separate sensor.

[0090] If the electronic device is determined to have been gripped by a user, the electronic device may perform subsequent actions. According to one or more embodiments, when the electronic device is gripped by a user, the impedance of the antenna may change. The impedance difference between the antenna and other components connected to the antenna may increase. As a subsequent action, the electronic device may cause a tuner (e.g., tuner (280) of FIG. 2 ) to adjust the impedance. According to one or more embodiments, when the electronic device is determined to have been gripped by a user, the electronic device may reduce the transmission power to protect the user.

[0091] Actions (301) to (307) can be performed repeatedly. In other words, actions (301) to (307) can be performed repeatedly at regular intervals.

[0092] An electronic device can transmit a transmission signal to an external electronic device in various frequency bands (e.g., N3 band 1710 MHz - 1785 MHz). At this time, a free-state reflection coefficient may be different for each frequency band. Each frequency band may have a circle (311) having a different center (315). Each circle (311) of each frequency band may have a different radius (313). The radius (313) may be set to become smaller as the frequency band increases. The electronic device may store the center (315) and radius (313) of the circle (311) for each frequency band as a look-up table (LUT).

[0093] Below, we will explain how to obtain the reflection coefficient.

[0094]

[0095] FIG. 4 is a diagram illustrating a wireless communication system for explaining reflection coefficient acquisition according to one or more embodiments of the present disclosure.

[0096] Referring to FIG. 4, a wireless communication system (400) (e.g., the wireless communication system (200) of FIG. 2) is illustrated.

[0097] The description of the components included in the wireless communication system (400) will be omitted as described above in FIG. 2.

[0098] The communication processor (410) (e.g., the auxiliary processor (123) of FIG. 1 and the communication processor (210) of FIG. 2) can transmit a first transmission signal to an external electronic device (e.g., the electronic device (104) of FIG. 1) via the transceiver (420).

[0099] The transceiver (420) can convert the first transmission signal into an analog signal using the DAC (421) (e.g., the DAC (221) of FIG. 2). The first transmission signal converted into an analog signal can be transmitted to an external electronic device via the antenna (450) (e.g., the antenna module (197) of FIG. 1 and the antenna (290) of FIG. 2). A portion of the first transmission signal converted into an analog signal can be received by the transceiver (420) via a feedback path in the coupler (430). The coupler (430) can include a forward switch and a reverse switch. A portion of the first transmission signal converted into an analog signal can be fed back to the transceiver (420) via either the forward switch or the reverse switch. For example, a portion of the converted first transmission signal can be fed back to the transceiver (420) via the forward switch.

[0100] The remainder of the first transmission signal converted into an analog signal, excluding a portion fed back to the transceiver (420) through the feedback path, may be reflected from the tuner (440) (e.g., the tuner (280) of FIG. 2) and / or the antenna (450). A portion of the reflected signal may be fed back to the transceiver (420) through either the forward switch or the reverse switch of the coupler (430). For example, a portion of the reflected signal may be fed back to the transceiver (420) through the forward switch of the coupler (430) and the feedback path. A signal fed back through the forward switch of the coupler (430) converted into a digital signal by the ADC (423) may be referred to as a forward signal. The forward signal may be a signal corresponding to the first transmission signal received by the transceiver through the feedback path from the coupler.

[0101] The communication processor (410) can transmit the second transmission signal to an external electronic device via the transceiver (420). The RB size of the second transmission signal may be the same as the RB size of the first transmission signal. The frequency band of the second transmission signal may be the same as the frequency band of the first transmission signal. The first transmission signal and the second transmission signal may be included in a digital transmission signal.

[0102] The transceiver (420) can convert the second transmission signal into an analog signal using the DAC (421). The second transmission signal converted into an analog signal can be transmitted to an external electronic device via the antenna (450). A portion of the second transmission signal converted into an analog signal can be received by the transceiver (420) through a feedback path in the coupler (430). A portion of the second transmission signal converted into an analog signal can be fed back to the transceiver (420) through either a forward switch or a reverse switch. Since the first transmission signal converted into an analog signal is fed back through the forward switch, a portion of the second transmission signal converted into an analog signal can be fed back to the transceiver (420) through the reverse switch.

[0103] The remainder of the second transmission signal converted into an analog signal, excluding a portion fed back to the transceiver (420) through the feedback path, may be reflected from the tuner (440) and / or the antenna (450). A portion of the reflected signal may be fed back to the transceiver (420) through the reverse switch of the coupler (430). The signal fed back through the reverse switch of the coupler (430) converted into a digital signal by the ADC (423) may be referred to as a reverse signal. The reverse signal may be a signal corresponding to the second transmission signal received by the transceiver through the feedback path from the coupler. The forward signal and the reverse signal may be included in a digital feedback signal.

[0104] The communication processor (410) can convert a signal fed back through a feedback path from the ADC (423) into a digital signal. The signal fed back through the ADC (423) feedback path can be sampled to convert it into a forward signal and a reverse signal. The ADC (423) can sample the fed back signal according to a sampling count and a sampling rate. The communication processor (410) can control the sampling count and the sampling rate based on the RB sizes of the first transmission signal and the second transmission signal. The communication processor (410) can control the sampling count and the sampling rate based on a threshold value of the RB size. The communication processor (410) can sample the forward signal and the reverse signal from the ADC using the controlled sampling rate and the controlled sampling count and convert them into digital signals.

[0105] The communication processor (410) can convert a signal fed back to the transceiver into a digital feedback signal using sampling information controlled according to the RB size. The sampling information can include at least one of a sampling rate and a sampling count. The communication processor (410) can control the sampling information based on a threshold value of the RB size. If the RB size exceeds the threshold value, the communication processor (410) can control the sampling information to first sampling information. If the RB size is less than or equal to the threshold value, the communication processor (410) can control the sampling information to second sampling information. The sampling count of the second sampling information can be greater than the sampling count of the first sampling information. The sampling rate of the second sampling information can be less than the sampling rate of the first sampling information.

[0106] The communication processor (410) may calculate a forward voltage using the first transmission signal and the forward signal. The forward voltage may be a correlation value between the first transmission signal and the forward signal. The communication processor (410) may calculate a reverse voltage using the second transmission signal and the reverse signal. The reverse voltage may be a correlation value between the second transmission signal and the reverse signal.

[0107] The communication processor (410) can determine a reflection coefficient (e.g., reflection coefficient (317) of FIG. 3) looking toward the antenna (450) from the input of the tuner (440) (e.g., tuner (280) of FIG. 2) connected to the coupler (430) using the ratio between the forward voltage and the reverse voltage. The communication processor (410) can determine the reflection coefficient, which is the ratio of the reverse voltage to the forward voltage. The communication processor (410) can determine the reflection coefficient periodically.

[0108] The communication processor (410) can display the reflection coefficient on a complex plane (e.g., the complex plane (310) of FIG. 3). The communication processor (410) can determine whether the electronic device is gripped based on whether the reflection coefficient is displayed outside a circle (e.g., the circle (311) of FIG. 3) displayed on the complex plane. The communication processor (410) can calculate the distance from the reflection coefficient to the center of the circle. The communication processor (410) can determine whether the electronic device is gripped based on whether the distance from the reflection coefficient to the center of the circle exceeds the radius of the circle (e.g., the radius (313) of FIG. 3).

[0109] Below, we will explain how to compensate for the offset in the reflection coefficient displayed in the complex plane depending on the frequency.

[0110]

[0111] FIG. 5 is a diagram illustrating offset compensation according to one or more embodiments of the present disclosure.

[0112] Referring to FIG. 5, a circle (500) (e.g., circle (311) of FIG. 3) is depicted displayed on a complex plane (e.g., complex plane (310) of FIG. 3).

[0113] The reflection coefficients of transmission signals included in the same frequency band (e.g., N3 band 1710 MHz - 1785 MHz) may be based on the same circle (500). Even if included in the same frequency band, an offset may occur depending on the frequency of the transmission signal. As the frequency increases, a phase shift may occur in the clockwise direction. For example, in the N3 band, the reflection coefficient for the transmission signal of 1710 MHz (e.g., the reflection coefficient (317) of FIG. 3) and the reflection coefficient for the transmission signal of 1785 MHz may have an offset of about 7 degrees per 5 MHz in the clockwise direction based on the center (510) of the circle (500) (e.g., the center (315) of FIG. 3). In order to accurately determine whether an electronic device has been gripped by a user, the reflection coefficients of transmission signals included in the same frequency band may need to be concentrated on one point. Therefore, the offset of the reflection coefficient that occurs when the frequency is different may need to be compensated for.

[0114] A communication processor (e.g., the auxiliary processor (123) of FIG. 1, the communication processor (210) of FIG. 2, and the communication processor (410) of FIG. 4) can compensate for the offset. According to one or more embodiments, the communication processor can calculate a unit angular difference per MHz between the lowest frequency and the highest frequency of a frequency band. The unit angular difference per MHz can be calculated with respect to the center (510) of a circle (500) that determines whether an electronic device is gripped in the corresponding frequency band. The communication processor can compensate for the offset using the calculated unit angular difference per MHz. The communication processor can concentrate the reflection coefficients of the transmitted signals to a single point by compensating for the calculated offset.

[0115] Below, we will explain the correlation according to the RB size of the transmitted signal.

[0116]

[0117] FIG. 6 is a drawing for explaining characteristics according to RB size according to one or more embodiments of the present disclosure.

[0118] Referring to Fig. 6, a graph is shown showing a composite signal and correlation of a transmission signal (RF TX in Fig. 6) and a feedback signal (RF RX in Fig. 6) when the RB size (resource block size) is 1. Referring to Fig. 6, a graph is shown showing a composite signal and correlation of a transmission signal and a feedback signal when the RB size is 100. The feedback signal may be a forward signal or a reverse signal received by a transceiver through a feedback path.

[0119] Comparing graphs (610) and (630), the transmission signal and feedback signal when the RB size is 1 may be simpler than the transmission signal and feedback signal when the RB size is 100. In other words, the smaller the RB size, the simpler the transmission signal and feedback signal may be. When the signal is simple, the correlation may be shaken even if the feedback signal is slightly delayed. On the other hand, when the signal is complex, the correlation may not be shaken even if the feedback signal is slightly delayed. For example, referring to graphs (620) and (640), a peak value that is obtained significantly compared to other peaks may be determined as the correlation value. Referring to graph (620), when the RB size is 1, the peak value that is obtained significantly compared to other peaks may not be clear compared to graph (640) when the RB size is 100. Therefore, when the RB size is 1, the correlation value may be shaken compared to when the RB size is 100.

[0120] Below, the reflection coefficient according to the RB size (e.g., the reflection coefficient (317) of Fig. 3) will be described.

[0121]

[0122] FIG. 7 is a diagram for explaining correlation according to RB size according to one or more embodiments of the present disclosure.

[0123] Referring to FIG. 7, reflection coefficients displayed on a complex plane (e.g., complex plane (310) of FIG. 3) are shown when the RB size is 100 and when the RB size is 1.

[0124] When the RB size is 100, the correlation value may not fluctuate as much as when the RB size is 1, as described above in Fig. 6. If the correlation value does not fluctuate, the reflection coefficients may not scatter. Therefore, when the RB size is 100, the reflection coefficients may be more concentrated in one point than when the RB size is 1. When the RB size is 1, the reflection coefficients may not be concentrated in one point but may scatter.

[0125] When the RB size is 100, the radius (e.g., radius (313) of FIG. 3) of a circle (700) (e.g., circle (311) of FIG. 3) for determining whether the electronic device is gripped may be determined to be smaller than the radius (e.g., radius (313) of FIG. 3) of a circle (710) (e.g., circle (311) of FIG. 3) for determining whether the electronic device is gripped. When the RB size is 1, the reflection coefficients are not concentrated at one point, so the radius of the circle may need to be determined to be larger than when the RB size is 1. By determining the radius to be large, the recognition distance for determining the free state or grip state of the electronic device may be reduced when the RB size is small.

[0126] Therefore, even with a small RB size, it may be necessary to obtain stable correlation values ​​to reduce the radius of the circle. Below, we will describe a method for controlling the sampling rate and sampling count to obtain stable correlation values.

[0127] Figures 8 and 9 are drawings for explaining the sampling rate and sampling count and their respective controls.

[0128] Referring to FIG. 8, a feedback signal (800), which is an analog signal, is illustrated.

[0129] When converting an analog signal into a digital signal by an ADC (e.g., ADC (223) of FIG. 2 and ADC (423) of FIG. 4), sampling may be performed. The sampling rate may be the number of samples extracted per unit time (e.g., 1 second). The unit of the sampling rate may be Hertz (Hz). The sampling count may be the number of samples collected over a certain period of time. The sampling count may be expressed as the product of the sampling rate and the time. For example, if an analog signal is sampled for 10 seconds at a sampling rate of 250 Hz, the sampling count may be 2500.

[0130] Referring to Figure 9, reflection coefficients are shown when the sampling rate and sampling count are different when the RB size is 1.

[0131] Reducing the sampling rate and increasing the sampling count can help prevent fluctuations in correlation values ​​for simple signals with small RB sizes. For example, assuming a threshold for RB size of 5, 1 RB can be achieved if the RB size is within the threshold. If the RB size is within the threshold, reducing the sampling rate and increasing the sampling count can prevent fluctuations in correlation values. In other words, the reflection coefficient can be concentrated at a single point.

[0132] The graph (900) of FIG. 9 may be a graph showing reflection coefficients when the sampling rate is 122 MHz and the sampling count is 1024 when there is 1 RB. The graph (910) of FIG. 9 may be reflection coefficients when the sampling rate is 30 MHz and the sampling count is 4096 when there is 1 RB.

[0133] In other words, if the RB size is within the threshold, reducing the sampling rate and increasing the sampling count can concentrate the reflection coefficients at a single point. Conversely, if the RB size is within the threshold, increasing the sampling rate and decreasing the sampling count can cause the reflection coefficients to spread out. This spreading of the reflection coefficients can lead to misjudgments when determining whether an electronic device is gripped.

[0134] In conclusion, the RB size can be dynamically changed. The RB size of the transmitted signal can be continuously changed. When the RB size is large (i.e., exceeds a threshold), reducing the sampling rate and increasing the sampling count may result in inaccurate reflection coefficients. Conversely, when the RB size is small, increasing the sampling rate and decreasing the sampling count may result in inaccurate reflection coefficients. Therefore, the sampling rate and sampling count may need to be set differently depending on the RB size.

[0135] A communication processor (e.g., the auxiliary processor (123) of FIG. 1, the communication processor (210) of FIG. 2, and the communication processor (410) of FIG. 4) can determine whether the RB size exceeds a threshold value. The communication processor can control the sampling count and the sampling rate depending on whether the RB size exceeds the threshold value. The communication processor can control the sampling rate when the RB size is less than or equal to the threshold value to be lower than the sampling rate when the RB size exceeds the threshold value. For example, the communication processor can control the sampling rate when the RB size is less than or equal to the threshold value to be 1 / 4 of the sampling rate when the RB size exceeds the threshold value.

[0136] The communication processor can control the sampling count when the RB size is less than or equal to a threshold value to be greater than the sampling count when the RB size exceeds the threshold value. For example, the communication processor can control the sampling count when the RB size is less than or equal to a threshold value to be four times the sampling count when the RB size exceeds the threshold value.

[0137] According to one or more embodiments, the communication processor can check the magnitude and phase of a reflection coefficient in real time when the RB size is less than or equal to a threshold value. If only the magnitude of the reflection coefficient changes in the complex plane when the RB size is less than or equal to the threshold value, but the phase does not change, the communication processor may not use the reflection coefficient when determining whether the electronic device is gripped. This can enhance the stability of the reflection coefficients used when determining whether the electronic device is gripped.

[0138]

[0139] FIG. 10 is a diagram illustrating a simulation result of a correlation value when the sampling count and sampling rate are varied according to one or more embodiments of the present disclosure.

[0140] Fig. 10 may be a diagram illustrating simulation results of correlation values ​​under the first and second conditions when the RB size is below a threshold value. The first condition may have a sampling rate of 250 Hz and a sampling count of 128. The second condition may have a sampling rate of 125 Hz and a sampling count of 512. In other words, the second condition may have a lower sampling rate and a higher sampling count than the first condition. As described above in Fig. 9, when the RB size is below a threshold value, the sampling rate must be reduced and the sampling count must be increased to obtain an accurate reflection coefficient.

[0141] Graph (1000) may be a graph illustrating sampling of a reverse signal under the first condition. In other words, graph (1000) may be a graph in which 128 samples are sampled from a reverse signal at a sampling rate of 250 Hz. Graph (1010) may be a graph illustrating correlation values ​​under the first condition.

[0142] Graph (1020) may be a graph illustrating sampling of a reverse signal under the second condition. In other words, graph (1020) may be a graph in which 512 samples are sampled from a reverse signal at a sampling rate of 125 Hz. Graph (1030) may be a graph illustrating correlation values ​​under the second condition.

[0143] When comparing graph (1010) and graph (1030), the resolution of graph (1030) may be higher than that of graph (1010). When comparing graph (1010) and graph (1030), the correlation value of graph (1030) may be greater than that of graph (1010). In other words, when the RB size is less than or equal to a threshold, decreasing the sampling rate and increasing the sampling count may increase the correlation value. Conversely, when the RB size exceeds the threshold, increasing the sampling rate and decreasing the sampling count may increase the correlation value. Therefore, the sampling rate and the sampling count may need to be controlled depending on whether the RB size exceeds the threshold.

[0144]

[0145] FIG. 11 is a flowchart illustrating a method of operating an electronic device according to one or more embodiments of the present disclosure.

[0146] In the embodiments below, the operations may be performed sequentially, but are not necessarily performed sequentially. For example, the order of the operations may be changed, and at least two operations may be performed in parallel. The operations illustrated in FIG. 11 may be performed by at least one component of an electronic device (e.g., the electronic device (101) of FIG. 1 ).

[0147] In operation (1110), the electronic device may provide a digital transmission signal to the transceiver to calculate a reflection coefficient.

[0148] The electronic device may include a transceiver (e.g., transceiver (220) of FIG. 2 and transceiver (420) of FIG. 4) including an ADC (e.g., ADC (223) of FIG. 2 and ADC (423) of FIG. 4) and a DAC. The electronic device may include a coupler (e.g., coupler (270) of FIG. 2 and coupler (430) of FIG. 4) connected to the transceiver via a feedback path.

[0149] In operation (1120), the electronic device may receive a digital feedback signal from a transceiver to calculate a reflection coefficient.

[0150] In operation (1130), the electronic device can calculate a reflection coefficient based on a digital transmission signal and a digital feedback signal.

[0151] The digital transmission signal can be converted into an analog signal by the transceiver's DAC. The digital feedback signal can be converted into a digital signal by the transceiver's ADC based on sampling information controlled by the RB size of the digital transmission signal.

[0152] Since the matters described above in FIGS. 1 to 9 can be applied to each of the operations illustrated in FIG. 11, a more detailed description is omitted.

[0153] According to one embodiment, the digital transmission signal may include a first transmission signal and a second transmission signal. The digital feedback signal may include a forward signal received by the communication processor in response to providing the first transmission signal and a reverse signal received by the communication processor in response to providing the second transmission signal.

[0154] According to one or more embodiments, the sampling information may include one or more of a sampling rate and a sampling count.

[0155] According to one or more embodiments, the method of operating an electronic device may further include determining whether the electronic device is gripped using a reflection coefficient.

[0156] According to one or more embodiments, the operation of determining whether an electronic device is gripped using a reflection coefficient may include displaying the reflection coefficient on a complex plane (e.g., complex plane (310) of FIG. 3), and determining that the electronic device is gripped by a user if the reflection coefficient is displayed outside a circle displayed on the complex plane (e.g., circle (311) of FIG. 3). The circle may be centered around the reflection coefficient determined when the electronic device is not gripped.

[0157] According to one or more embodiments, the circle may have a different center depending on the frequency band and a different radius (e.g., radius (313) in FIG. 3) depending on the frequency band.

[0158] According to one or more embodiments, the radius may be determined to be smaller as the frequency band becomes larger.

[0159] According to one or more embodiments, the forward voltage may be a correlation value between the first transmission signal and the forward signal. The reverse voltage may be a correlation value between the second transmission signal and the reverse signal.

[0160] According to one or more embodiments, a computer-readable recording medium may record a program for executing the above-described operating method.

[0161] According to one or more embodiments, an electronic device can control a sampling rate and a sampling count for converting an analog signal into a digital signal based on whether the RB size of a first transmission signal and a second transmission signal transmitted through a transceiver exceeds a threshold value. The electronic device can sample a forward signal and a reverse signal at the controlled sampling rate and the controlled sampling count and convert them into digital signals. A forward voltage can be calculated using the first transmission signal and the converted forward signal. A reverse voltage can be calculated using the second transmission signal and the converted reverse signal. The electronic device can determine a reflection coefficient from an input of a tuner connected to a coupler looking toward an antenna using a ratio between the forward voltage and the reverse voltage. The forward signal can be a signal corresponding to a first transmission signal received by the transceiver through a feedback path from the coupler. The reverse signal can be a signal corresponding to a second transmission signal received by the transceiver through a feedback path from the coupler.

[0162]

[0163] FIG. 12 is a flowchart illustrating a method of operating an electronic device according to one or more embodiments of the present disclosure.

[0164] In the embodiments below, the operations may be performed sequentially, but are not necessarily performed sequentially. For example, the order of the operations may be changed, and at least two operations may be performed in parallel. The operations illustrated in FIG. 12 may be performed by at least one component of an electronic device (e.g., the electronic device (101) of FIG. 1 ).

[0165] In operation (1210), the electronic device may convert forward signals and reverse signals obtained from a coupler (e.g., coupler (270) of FIG. 2 and coupler (430) of FIG. 4) into digital signals in an ADC (e.g., ADC (223) of FIG. 2 and ADC (423) of FIG. 4) based on the RB sizes of the first transmission signal and the second transmission signal transmitted through the transceiver (e.g., transceiver (220) of FIG. 2 and transceiver (420) of FIG. 4).

[0166] In operation (1220), the electronic device may calculate a forward voltage using the first transmission signal and the converted forward signal. The forward signal may be a signal corresponding to the first transmission signal received by the transceiver through a feedback path from the coupler.

[0167] In operation (1230), the electronic device may calculate a reverse voltage using the second transmission signal and the converted reverse signal. The reverse signal may be a signal corresponding to the second transmission signal received by the transceiver through the feedback path from the coupler.

[0168] In operation (1240), the electronic device can determine a reflection coefficient (e.g., reflection coefficient (317) of FIG. 3) looking at an antenna (e.g., antenna module (197) of FIG. 1, antenna module (290) of FIG. 2, and antenna (450) of FIG. 4)) from an input of a tuner (e.g., tuner (280) of FIG. 2 and tuner (440) of FIG. 4) connected to a coupler using a ratio between forward voltage and reverse voltage.

[0169] Since the matters described above in FIGS. 1 to 9 can be applied to each of the operations illustrated in FIG. 11, a more detailed description is omitted.

[0170] According to one or more embodiments, the operation of converting the forward signal and the reverse signal into a digital signal in the ADC may include the operation of controlling a sampling rate and a sampling count for converting the analog signal into a digital signal based on a threshold value of an RB size. The operation of converting the forward signal and the reverse signal into a digital signal in the ADC may include the operation of sampling the forward signal and the reverse signal in the ADC using the controlled sampling rate and the controlled sampling count and converting the forward signal and the reverse signal into a digital signal.

[0171] According to one or more embodiments, the operation of controlling the sampling rate and the sampling count may control the sampling count when the RB size is less than or equal to a threshold value to be greater than the sampling count when the RB size exceeds the threshold value.

[0172] According to one or more embodiments, the operation of controlling the sampling rate and the sampling count may control the sampling rate when the RB size is less than or equal to a threshold value to be lower than the sampling rate when the RB size exceeds the threshold value.

[0173]

[0174] The embodiments of the present invention disclosed in this specification and drawings are merely specific examples presented to easily explain the technical contents according to the embodiments of the present invention and to help understand the embodiments of the present invention, and are not intended to limit the scope of the embodiments of the present invention. Therefore, the scope of the various embodiments of the present invention should be interpreted as including all changes or modified forms derived based on the technical ideas of the various embodiments of the present invention in addition to the embodiments disclosed herein.

Claims

1. In an electronic device (101), A transceiver (220, 420) including an ADC (223, 423) and a DAC (221, 421); A coupler (270, 430) connected to the above transceiver (220, 420) through a feedback path; At least one memory (130) for storing commands; and comprising at least one communication processor (123, 210, 410) configured to execute the above commands; The at least one communication processor (123, 210, 410) executes the instructions to provide a digital transmission signal to the transceiver (220, 420), receive a digital feedback signal from the transceiver (220, 420), and obtain a reflection coefficient (317) based on the digital transmission signal and the digital feedback signal. The above DAC, Converting the above digital transmission signal into an analog signal, The above ADC, Converting a signal into a digital signal based on sampling information controlled according to the RB size of the digital transmission signal to obtain the digital feedback signal. Electronic device (101).

2. In paragraph 1, The above digital transmission signal is, comprising a first transmission signal and a second transmission signal, The above digital feedback signal is, In response to providing said first transmission signal, a forward signal received by said at least one communication processor (123, 210, 410) and in response to providing said second transmission signal, a reverse signal received by said at least one communication processor (123, 210, 410). Electronic device (101).

3. In any one of paragraphs 1 and 2, The above sampling information is, comprising at least one of a sampling rate and a sampling count; Electronic device (101).

4. In any one of paragraphs 1 to 3, The at least one communication processor (123, 210, 410) executes the commands, Controlling the sampling information based on the threshold value of the RB size, controlling the sampling information as first sampling information based on the RB size exceeding the threshold value, and controlling the sampling information as second sampling information based on the RB size less than or equal to the threshold value. Electronic devices (101).

5. In any one of paragraphs 1 to 4, The sampling count of the second sampling information is greater than the sampling count of the first sampling information. Electronic devices (101).

6. In any one of paragraphs 1 to 5, The sampling rate of the second sampling information is smaller than the sampling rate of the first sampling information. Electronic devices (101).

7. In any one of paragraphs 1 to 6, The at least one communication processor (123, 210, 410) executes the commands, Using the above reflection coefficient (317), it is determined whether the electronic device (101) is gripped. Electronic devices (101).

8. In any one of paragraphs 1 to 7, The at least one communication processor (123, 210, 410) executes the commands, The above reflection coefficient (317) is displayed on a complex plane (310), and the electronic device (101) is determined to be gripped by a user based on the reflection coefficient (317) displayed outside a circle (311, 500) displayed on the complex plane (310). The above circle (311, 500) is Based on the determined reflection coefficient (317) determined when the above electronic device (101) is not gripped, Electronic devices (101).

9. In any one of paragraphs 1 to 8, The above circle (311, 500) is having a center that varies depending on the frequency band and a radius (313) that varies depending on the frequency band; Electronic devices (101).

10. In any one of paragraphs 1 to 9, The above radius (313) is The larger the frequency band, the smaller the decision, Electronic devices (101).

11. In any one of paragraphs 1 to 10, The above reflection coefficient is, It is determined based on the ratio between the forward voltage and the reverse voltage, The above forward voltage is, is the correlation value between the first transmission signal and the forward signal, The fraud reverse voltage is, The correlation value between the second transmission signal and the reverse signal, Electronic device (101).

12. In the operating method of an electronic device (101), An operation of providing a digital transmission signal to a transceiver (220, 420); An operation of receiving a digital feedback signal from the above transceiver (220, 420); and An operation of calculating a reflection coefficient (317) based on the above digital transmission signal and the above digital feedback signal. Including, The above digital transmission signal is converted into an analog signal by the DAC (221, 421) of the transceiver (220, 420), The above digital feedback signal is converted into a digital signal by the ADC of the transceiver (220, 420) based on sampling information controlled according to the RB size of the digital transmission signal. How it works.

13. In paragraph 12, The above digital transmission signal is, comprising a first transmission signal and a second transmission signal, The above digital feedback signal is, Including a forward signal received in response to the provision of the first transmission signal and a reverse signal received in response to the provision of the second transmission signal. How it works.

14. In any one of paragraphs 12 to 13, The above sampling information is, comprising at least one of a sampling rate and a sampling count; How it works.

15. In any one of paragraphs 12 to 14, The above sampling information is, Controlled by first sampling information based on the RB size exceeding the threshold value, and controlled by second sampling information based on the RB size being less than or equal to the threshold value. How it works.

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