Electronic device and method for controlling spurious emission

Abstract

Disclosed are an electronic device and a method for controlling spurious emission. Spurious emission may be identified by setting a first time interval in which a feedback receiver operates in a spurious emission detection mode, and analyzing a feedback signal obtained by the feedback receiver on the basis of a first resolution bandwidth and a second resolution bandwidth within the first time interval.

Description

Electronic devices and methods for controlling spurious emissions

[0001] Embodiments of the present disclosure relate to electronic devices and methods for controlling spurious emissions.

[0002] In wireless communication systems, spurious emissions refer to radio frequency signals that occur at frequencies other than the target frequency of operation. Excessive spurious emissions from electronic devices can interfere with the operation of other electronic devices or systems. Separate measuring equipment, such as a spectrum analyzer, can be used to test conducted spurious emissions (CSE) from electronic devices.

[0003] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0004] To respond in real time to CSE issues, electronic devices need to be able to independently determine spurious emissions and control them.

[0005] The technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those with ordinary skill in the technical field to which this document pertains from the description below.

[0006] An electronic device according to one embodiment may include a memory including instructions and a processor electrically connected to the memory and configured to execute the instructions. Based on the instructions being executed by the processor, the processor may cause the electronic device to perform a plurality of operations. The plurality of operations may include an operation of setting a first time interval during which a feedback receiver operates in a spurious emission detection mode. The plurality of operations may include an operation of determining spurious emissions from the electronic device by analyzing a feedback signal obtained by the feedback receiver based on a first resolution bandwidth and a second resolution bandwidth within the first time interval. The feedback signal may correspond to a radio frequency (RF) signal amplified by a power amplifier of the electronic device.

[0007] An electronic device according to one embodiment may include a memory including instructions and a processor electrically connected to the memory and configured to execute the instructions. Based on the instructions being executed by the processor, the processor may cause the electronic device to perform a plurality of operations. The plurality of operations may include obtaining a feedback signal using a feedback receiver to determine spurious emissions from the electronic device. The plurality of operations may include analyzing the feedback signal using a first resolution bandwidth and a second resolution bandwidth narrower than the first resolution bandwidth. The plurality of operations may include adjusting a bias current of a power amplifier based on the analysis of the feedback signal.

[0008] A method for determining spurious emissions according to one embodiment may include an operation of setting a first time interval during which a feedback receiver operates in a spurious emission detection mode. The method may include an operation of determining spurious emissions from the electronic device by analyzing a feedback signal obtained by the feedback receiver based on a first resolution bandwidth and a second resolution bandwidth within the first time interval. The feedback signal may correspond to a radio frequency (RF) signal amplified by a power amplifier of the electronic device.

[0009] According to one embodiment, a computer-readable recording medium storing one or more computer programs may include instructions for performing the method in a processor.

[0010] FIG. 1 is a schematic block diagram of an electronic device according to one embodiment.

[0011] FIG. 2 is a flowchart illustrating spurious emission control according to one embodiment.

[0012] FIG. 3 is a flowchart illustrating spurious radiation detection according to one embodiment.

[0013] FIGS. 4 to 6 are diagrams illustrating examples of spurious radiation detection according to one embodiment.

[0014] Figure 7 is a flowchart illustrating the operation of an electronic device according to one embodiment.

[0015] FIG. 8 is a flowchart illustrating the operation of an electronic device according to one embodiment.

[0016] FIG. 9 is a block diagram of an electronic device within a network environment according to one embodiment.

[0017] 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.

[0018]

[0019] FIG. 1 is a schematic block diagram of an electronic device according to one embodiment.

[0020] Referring to FIG. 1, according to one embodiment, an electronic device (100) (e.g., electronic device (901) of FIG. 9) may include a processor (110) (e.g., processor (920) of FIG. 9), a radio frequency (RF) circuit (120) (e.g., radio frequency integrated circuit (RFIC)), a power amplifier (130), and a memory (140) (e.g., memory (930) of FIG. 9). FIG. 1 schematically illustrates the electronic device (100) in order to explain the operation of the electronic device (100), and it will be apparent to those skilled in the art that the scope of the present disclosure is not limited thereto. The configuration of the electronic device (100) may be implemented in various forms. For example, the power amplifier (130) may be implemented as a part of the RF circuit (120).

[0021] According to one embodiment, a processor (110) (e.g., a communication processor) can determine spurious emission and reduce the spurious emission level by performing power amplifier biasing.

[0022] According to one embodiment, the processor (110) may perform processing, amplification, filtering, modulation, and / or demodulation of radio frequency signals for wireless communication (e.g., cellular communication).

[0023] According to one embodiment, the RF circuit (120) may include a feedback receiver (or FBRx) (121). The feedback receiver (121) may receive feedback signals for amplified radio frequency signals from a coupler (131) of a power amplifier (130). The feedback signals may include information about the amplified radio signals.

[0024] In one embodiment, the power amplifier (130) can amplify the power of a wireless signal to a level suitable for transmission. The amplified wireless signal can be routed by a radio frequency (RF) switch.

[0025] According to one embodiment, the power amplifier (130) may include a coupler (131). The coupler (130) may be used to obtain a feedback signal for amplified radio frequency signals amplified by the power amplifier (130). The feedback signal may include at least a portion of the amplified radio signal.

[0026] According to one embodiment, the feedback signal provides information about the performance and / or characteristics of the electronic device (100) and may be used for the operation of the electronic device (100). For example, the feedback signal may be used for transmission power compensation, spurious emission control, and / or automatic gain control. The feedback signal may be transmitted to a feedback receiver (121).

[0027] According to one embodiment, the memory (140) may store instructions (or programs) executable by the processor (110). For example, the instructions may include instructions for executing operations of the processor (110) and / or operations of each component of the processor (110).

[0028]

[0029] FIG. 2 is a flowchart illustrating spurious emission control according to one embodiment. Referring to FIG. 2, according to one embodiment, operations 210 to 250 may be performed sequentially, but are not limited thereto. For example, some operations (e.g., operations 220 or 230) may be omitted, the order of some operations (e.g., operations 220 and 230) may be changed, or two or more operations (e.g., operations 220 and 230) may be performed in parallel.

[0030] In operation 210, according to one embodiment, an electronic device (e.g., electronic device (100) of FIG. 1) may amplify a wireless signal based on transmission quality and / or power consumption. For example, the electronic device (100) may amplify a wireless signal by applying a power amplifier bias current to a power amplifier (e.g., power amplifier (130) of FIG. 1) that satisfies constraints related to transmission quality and minimizes power consumption.

[0031] According to one embodiment, the electronic device (100) may amplify a wireless signal based on information about the application, such as the type of application requiring communication, in addition to transmission quality and power consumption. For example, an application of the electronic device (100) may require a signal quality corresponding to the type of application (e.g., a voice call application, an online gaming application, a video streaming application), and the electronic device (100) may amplify a wireless signal based on the type of application while the application is running.

[0032] According to one embodiment, the electronic device (100) may amplify a wireless signal based on other communication metrics in addition to the examples described above. For example, the electronic device (100) may amplify a wireless signal based on communication metrics such as a transmission path of the wireless signal, interference by unwanted signals, target coverage, and / or a target signal-to-noise ratio (SNR).

[0033] In operation 220, according to one embodiment, the electronic device (100) may determine whether the temperature of the electronic device (100) satisfies a threshold value. The spurious emission level of the electronic device (100) may be affected by the temperature of the electronic device (100). The electronic device (100) may set the temperature of the electronic device (100) corresponding to the spurious emission limit as the threshold value. For example, the electronic device (100) may determine whether the temperature of the electronic device (100) is lower than or equal to a first temperature (e.g., 15 degrees Celsius) or higher than or equal to a second temperature (e.g., 40 degrees Celsius). According to one embodiment, the electronic device (100) may also determine whether other factors (e.g., humidity) that may affect the spurious emission of the electronic device (100) as well as the temperature of the electronic device (100) satisfy a specific threshold value. The electronic device (100) may perform operation 230 when the temperature of the electronic device (100) satisfies the threshold value. When the temperature of the electronic device (100) does not satisfy the threshold value, the electronic device (100) may amplify the wireless signal based on one or more of transmission quality, power consumption, information about the application, and communication indicators.

[0034] In operation 230, according to one embodiment, the electronic device (100) may determine whether the current transmission power of the electronic device (100) satisfies a threshold value. The threshold value may be a value corresponding to the maximum transmission power of the electronic device (100) (e.g., half of the maximum transmission power). The electronic device (100) may amplify the power of a wireless signal using the power amplifier (130), and the maximum transmission power of the electronic device (100) may be determined based on a characteristic of the power amplifier (130) (e.g., a linear interval). If the current transmission power of the electronic device (100) satisfies the threshold value, the electronic device (100) may perform operation 240. If the current transmission power of the electronic device (100) does not satisfy the threshold value, the electronic device (100) may amplify the wireless signal based on one or more of transmission quality, power consumption, information about an application, and communication indicators.

[0035] In operation 240, according to one embodiment, the electronic device (100) can determine spurious emissions from the electronic device (100). The process for determining spurious emissions will be described in detail with reference to FIGS. 3 to 6. If spurious emissions exist, the electronic device (100) can perform operation 250. If spurious emissions do not exist, the electronic device (100) can amplify the wireless signal based on one or more of transmission quality, power consumption, information about the application, and communication indicators.

[0036] In operation 250, according to one embodiment, the electronic device (100) may perform power amplifier biasing. For example, the electronic device (100) may reduce spurious emissions by adjusting the bias current of the power amplifier (130). Power amplifier biasing will be described in detail with reference to FIG. 8.

[0037]

[0038] FIG. 3 is a flowchart for explaining spurious radiation detection according to one embodiment, and FIGS. 4 to 6 are drawings for explaining examples of spurious radiation detection according to one embodiment.

[0039] Referring to FIG. 3, according to one embodiment, operations 310 to 330 may be performed sequentially, but are not limited thereto. For example, two or more operations may be performed in parallel, or one or more operations may be omitted.

[0040] In operation 310, according to one embodiment, an electronic device (e.g., electronic device (100) of FIG. 1) may set a time interval for an operating mode (e.g., transmission power compensation mode, spurious emission detection mode) of a feedback receiver (e.g., feedback receiver (121) of FIG. 1). The time interval setting process will be described in detail with reference to FIG. 4.

[0041] In operation 320, the electronic device (100) can determine spurious radiation from the electronic device (100) based on a first resolution bandwidth (e.g., 100 MHz). For example, the electronic device (100) can determine that spurious radiation exists if the power received by the feedback receiver (121) is higher than a white noise level. The spurious radiation detection process based on the first resolution bandwidth will be described in detail with reference to FIGS. 5 and 6 .

[0042] In operation 330, if spurious radiation is detected based on the first resolution bandwidth, the electronic device (100) may determine spurious radiation based on a second resolution bandwidth (e.g., 20 MHz). The second resolution bandwidth may be narrower than the first resolution bandwidth. A process for detecting spurious radiation levels based on the second resolution bandwidth will be described in detail with reference to FIG. 6.

[0043] Referring to FIG. 4, according to one embodiment, the electronic device (100) can set time intervals for operation modes (e.g., transmission power compensation mode, spurious emission detection mode) of the feedback receiver (121). For example, the electronic device (100) can randomly arrange a first time interval for the spurious emission detection mode and a second time interval for the transmission power compensation mode.

[0044] According to one embodiment, the electronic device (100) may randomly arrange the first time interval and the second time interval based on a specific time period (e.g., 10 ms). The time points (t0, t1, t2, t3) may represent the start or end points of the time intervals scheduled based on the specific time period.

[0045] According to one embodiment, the electronic device (100) can detect spurious radiation with a high probability by randomly setting a plurality of time intervals. For example, if the first time interval and the second time interval are arranged periodically and the spurious radiation occurs periodically only within the second time interval, the electronic device (100) may not be able to detect the spurious radiation.

[0046] Referring to FIG. 5, according to one embodiment, the electronic device (100) can determine spurious radiation from the electronic device (100) within a first time interval. The electronic device (100) can detect spurious radiation from adjacent frequency bands (e.g., 1745 MHz to 1945 MHz and 1955 MHz to 2155 MHz) of a transmission frequency band (e.g., 1945 MHz to 1955 MHz) based on a first resolution bandwidth. The electronic device (100) can perform spurious radiation detection for different frequency bands (51 to 55) randomly or periodically within the first time interval. Detection time interval lengths for the frequency bands (51 to 55) (e.g., detection time interval length (t) 51 ) and detection time interval length (t 52 )) may be the same or different. Time points (t a , t b , t c ) may represent the start or end point of time intervals scheduled based on a specific time period (e.g., 10 ms).

[0047]

[0048] Referring to FIG. 6, according to one embodiment, the electronic device (100) can analyze adjacent frequency bands (e.g., 1745 MHz to 1945 MHz and 1955 MHz to 2155 MHz) of a transmission frequency band (e.g., 1945 MHz to 1955 MHz) based on a first resolution bandwidth (e.g., 100 MHz). The electronic device (100) can divide the adjacent frequency band into a plurality of frequency bands (51 to 55) based on the first resolution bandwidth, and perform spurious radiation detection for each of the plurality of frequency bands (51 to 55) within a first time interval. When spurious radiation is detected in a specific frequency band, the electronic device (100) can analyze the frequency band in which the spurious radiation is detected based on a second resolution bandwidth (e.g., 20 MHz). For example, when spurious radiation is detected in a frequency band (52), the electronic device (100) can divide the frequency band (52) into a plurality of frequency bands (52-1 to 52-5) based on a second resolution bandwidth (e.g., 20 MHz) and determine spurious radiation for each of the plurality of frequency bands (52-1 to 52-5).

[0049] According to one embodiment, the electronic device (100) can reduce the time for spurious emission detection by detecting spurious emissions from the electronic device (100) based on a relatively wide first resolution bandwidth.

[0050] According to one embodiment, the electronic device (100) can precisely determine the location and / or level of the spurious radiation by analyzing the frequency band in which the spurious radiation is detected based on a second resolution bandwidth that is narrower than the first resolution bandwidth. The electronic device (100) can adjust the second resolution bandwidth based on the measurement accuracy of the spurious radiation. For example, when high measurement accuracy is required, the electronic device (100) can analyze the frequency band using the narrow second resolution bandwidth.

[0051] According to one embodiment, the second resolution bandwidth may be determined based on the target transmission quality and / or the surrounding environment of the electronic device (100). For example, when external electronic devices that are sensitive to interference, such as medical devices and / or communication devices, are located around the electronic device (100), the spurious emissions of the electronic device (100) may need to be precisely controlled. The electronic device (100) may determine the measurement accuracy of the spurious emissions based on at least one of the type and number of external electronic devices around the electronic device (100), and analyze the frequency band using the second resolution bandwidth corresponding to the determined measurement accuracy.

[0052]

[0053] Figure 7 is a flowchart illustrating the operation of an electronic device according to one embodiment.

[0054] Referring to FIG. 7, according to one embodiment, operations 710 to 720 may be performed sequentially, but are not limited thereto. For example, operations 710 to 720 may be performed in parallel. Operations 710 and 720 may be substantially identical to the operations of the electronic device described with reference to FIGS. 1 to 6 (e.g., the electronic device (100) of FIG. 1). Therefore, any redundant description will be omitted.

[0055] In operation 710, according to one embodiment, the electronic device (100) can set a time interval for an operating mode of a feedback receiver (e.g., feedback receiver (121) of FIG. 1). The feedback receiver (121) can have one or more operating modes. For example, the feedback receiver (121) can operate in a spurious emission detection mode within a first time interval (e.g., the first time interval of FIGS. 4 and 5) and in a transmit power compensation mode within a second time interval (e.g., the second time interval of FIGS. 4 and 5).

[0056] In operation 720, according to one embodiment, the electronic device (100) can determine spurious emissions from the electronic device (100) by analyzing a feedback signal acquired by the feedback receiver (121) based on a first resolution bandwidth (e.g., 100 MHz) and a second resolution bandwidth (e.g., 20 MHz) within a first time interval. The feedback signal can include information about frequency bands adjacent to a transmission frequency band of the electronic device (100) (e.g., frequency bands (51 to 55) of FIGS. 5 and 6).

[0057] According to one embodiment, the electronic device (100) can accurately determine the location and level of spurious radiation within a short period of time by stepwise determining the spurious radiation based on the first resolution bandwidth and the second resolution bandwidth.

[0058]

[0059] Figure 8 is a flowchart for explaining the operation of an electronic device according to one embodiment.

[0060] Referring to FIG. 8, according to one embodiment, operations 810 to 830 may be performed sequentially, but are not limited thereto. For example, two or more operations may be performed in parallel, or one or more operations may be omitted. Operations 810 to 830 may be substantially identical to the operations of the electronic device described with reference to FIGS. 1 to 6 (e.g., the electronic device (100) of FIG. 1). Therefore, any redundant description will be omitted.

[0061] In operation 810, according to one embodiment, the electronic device (100) may obtain a feedback signal using a feedback receiver (e.g., the feedback receiver (121) of FIG. 1) to determine spurious emissions from the electronic device (100). The feedback signal may include information about a wireless signal amplified by a power amplifier (e.g., the power amplifier (130) of FIG. 1).

[0062] In operation 820, the electronic device (100) can analyze the feedback signal based on a first resolution bandwidth (e.g., 100 MHz) and a second resolution bandwidth (e.g., 20 MHz) narrower than the first resolution bandwidth.

[0063] At operation 830, the electronic device (100) may perform power amplifier biasing based on analysis of the feedback signal. For example, the electronic device (100) may select a bias current that minimizes a spurious emission level within a predetermined bias current range for the power amplifier (130). The bias current range may be determined based on a transmission quality and / or a transmission power of the electronic device (100). For example, the bias current range may include a range of bias currents that satisfy a specific transmission quality and / or a specific transmission power. The bias current range may be stored in the memory (140) of the electronic device (100) in various ways (e.g., a non-volatile table).

[0064] The electronic device (100) can select a bias current optimized for transmission quality and / or transmission power when the spurious emission level becomes below a threshold value due to power amplifier biasing. The electronic device (100) can minimize spurious emission while maintaining transmission quality by performing power amplifier biasing within a predetermined bias current range.

[0065]

[0066] FIG. 9 is a block diagram of an electronic device within a network environment according to one embodiment.

[0067] Referring to FIG. 9, in a network environment (900), an electronic device (901) may communicate with an electronic device (902) via a first network (998) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (904) or a server (908) via a second network (999) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (901) may communicate with the electronic device (904) via the server (908). According to one embodiment, the electronic device (901) may include a processor (920), a memory (930), an input module (950), an audio output module (955), a display module (960), an audio module (970), a sensor module (976), an interface (977), a connection terminal (978), a haptic module (979), a camera module (980), a power management module (988), a battery (989), a communication module (990), a subscriber identification module (996), or an antenna module (997). In some embodiments, the electronic device (901) may omit at least one of these components (e.g., the connection terminal (978)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (976), the camera module (980), or the antenna module (997)) may be integrated into one component (e.g., the display module (960)).

[0068] The processor (920) may control at least one other component (e.g., a hardware or software component) of the electronic device (901) connected to the processor (920) by executing, for example, software (e.g., a program (940)), and may perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculation, the processor (920) may store a command or data received from another component (e.g., a sensor module (976) or a communication module (990)) in a volatile memory (932), process the command or data stored in the volatile memory (932), and store the resulting data in a non-volatile memory (934). According to one embodiment, the processor (920) may include a main processor (921) (e.g., a central processing unit or an application processor) or a secondary processor (923) (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 (901) includes a main processor (921) and a secondary processor (923), the secondary processor (923) may be configured to use less power than the main processor (921) or to be specialized for a given function. The secondary processor (923) may be implemented separately from the main processor (921) or as a part thereof.

[0069] The auxiliary processor (923) may control at least a portion of functions or states associated with at least one component (e.g., a display module (960), a sensor module (976), or a communication module (990)) of the electronic device (901), for example, on behalf of the main processor (921) while the main processor (921) is in an inactive (e.g., sleep) state, or together with the main processor (921) while the main processor (921) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (923) (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 (980) or a communication module (990)). In one embodiment, the auxiliary processor (923) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (901) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (908)). 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.

[0070] The memory (930) can store various data used by at least one component (e.g., the processor (920) or the sensor module (976)) of the electronic device (901). The data can include, for example, software (e.g., the program (940)) and input data or output data for commands related thereto. The memory (930) can include a volatile memory (932) or a non-volatile memory (934).

[0071] The program (940) may be stored as software in the memory (930) and may include, for example, an operating system (942), middleware (944), or an application (946).

[0072] The input module (950) can receive commands or data to be used in a component of the electronic device (901) (e.g., a processor (920)) from an external source (e.g., a user) of the electronic device (901). The input module (950) 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).

[0073] The audio output module (955) can output audio signals to the outside of the electronic device (901). The audio output module (955) 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. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0074] The display module (960) can visually provide information to an external party (e.g., a user) of the electronic device (901). The display module (960) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (960) 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.

[0075] The audio module (970) can convert sound into an electrical signal, or vice versa. According to one embodiment, the audio module (970) can acquire sound through the input module (950), output sound through the sound output module (955), or an external electronic device (e.g., electronic device (902)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (901).

[0076] The sensor module (976) can detect the operating status (e.g., power or temperature) of the electronic device (901) 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 embodiment, the sensor module (976) 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.

[0077] The interface (977) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (901) with an external electronic device (e.g., the electronic device (902)). In one embodiment, the interface (977) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0078] The connection terminal (978) may include a connector through which the electronic device (901) may be physically connected to an external electronic device (e.g., the electronic device (902)). According to one embodiment, the connection terminal (978) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0079] The haptic module (979) 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. In one embodiment, the haptic module (979) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0080] The camera module (980) can capture still images and videos. According to one embodiment, the camera module (980) may include one or more lenses, image sensors, image signal processors, or flashes.

[0081] The power management module (988) can manage power supplied to the electronic device (901). According to one embodiment, the power management module (988) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0082] A battery (989) may power at least one component of the electronic device (901). In one embodiment, the battery (989) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0083] The communication module (990) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (901) and an external electronic device (e.g., electronic device (902), electronic device (904), or server (908)), and the performance of communication through the established communication channel. The communication module (990) may operate independently from the processor (920) (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 embodiment, the communication module (990) may include a wireless communication module (992) (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 (994) (e.g., a local area network (LAN) communication module, or a power line communication module). Any of these communication modules may communicate with an external electronic device (904) via a first network (998) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (999) (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 may 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 (992) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (996) to identify or authenticate the electronic device (901) within a communication network such as the first network (998) or the second network (999).

[0084] The wireless communication module (992) 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 communications (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (992) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (992) 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 (992) can support various requirements specified in the electronic device (901), an external electronic device (e.g., the electronic device (904)), or a network system (e.g., the second network (999)). According to one embodiment, the wireless communication module (992) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, 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 realization.

[0085] The antenna module (997) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (997) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (997) 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 (998) or the second network (999), may be selected from the plurality of antennas by, for example, the communication module (990). A signal or power may be transmitted or received between the communication module (990) and the external electronic device via the at least one selected antenna. In some 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 (997).

[0086] In one embodiment, the antenna module (997) may form a mmWave antenna module. In one embodiment, 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.

[0087] 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)).

[0088] According to one embodiment, commands or data may be transmitted or received between the electronic device (901) and an external electronic device (904) via a server (908) connected to a second network (999). Each of the external electronic devices (902 or 904) may be the same or a different type of device as the electronic device (901). According to one embodiment, all or part of the operations executed in the electronic device (901) may be executed in one or more of the external electronic devices (902, 904, or 908). For example, when the electronic device (901) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (901) 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 (901). The electronic device (901) 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 (901) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In one embodiment, the external electronic device (904) may include an Internet of Things (IoT) device. The server (908) may be an intelligent server using machine learning and / or a neural network. According to one embodiment, the external electronic device (904) or the server (908) may be included in the second network (999).The electronic device (901) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0089]

[0090] An electronic device according to an embodiment disclosed in this document may take various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. The electronic device according to an embodiment of this document is not limited to the aforementioned devices.

[0091] 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 component (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.

[0092] The term "module" used in one embodiment 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 embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0093] Various embodiments of the present document may be implemented as software (e.g., a program (940)) including one or more instructions stored in a storage medium (e.g., an internal memory (936) or an external memory (938)) readable by a machine (e.g., an electronic device (901)). For example, a processor (e.g., a processor (920)) of the machine (e.g., an electronic device (901)) 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.

[0094] According to one embodiment, the method according to one embodiment disclosed in the present document may be provided as a computer program product. The computer program product may be traded as a product 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.

[0095] According to one embodiment, 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 one embodiment, 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 one embodiment, 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.

[0096]

[0097] An electronic device (100, 901) according to one embodiment may include a memory (140, 930) including instructions and a processor (110, 920) electrically connected to the memory (140, 930) and configured to execute the instructions. Based on the instructions being executed by the processor (110, 920), the processor (110, 920) may control a plurality of operations of the electronic device (100, 901). The plurality of operations may include an operation of setting a first time interval during which a feedback receiver (121) operates in a spurious emission detection mode. The above-described plurality of operations may include an operation of determining spurious emission from the electronic device (100, 901) by analyzing a feedback signal obtained by the feedback receiver (121) based on a first resolution bandwidth and a second resolution bandwidth within the first time interval. The feedback signal may correspond to a radio frequency (RF) signal amplified by a power amplifier (130) of the electronic device (100, 901).

[0098] The above plurality of operations may further include an operation of initiating a process for setting the first time interval based on at least one of a temperature of the electronic device (100, 901) and a transmission power of the electronic device (100, 901).

[0099] The above-described initiating operation may include an operation of initiating a process for setting the first time interval based on the current transmission power of the electronic device (100, 901) satisfying a threshold value.

[0100] The above threshold value may be determined based on the maximum transmission power of the electronic device (100, 901).

[0101] The operation of setting the first time interval may include an operation of randomly arranging the first time interval and the second time interval. The second time interval may include a time interval in which the feedback receiver (121) operates in a mode different from the spurious radiation detection mode.

[0102] The second time interval may include a time interval in which the feedback receiver (121) operates in a mode for compensating the transmission power of the electronic device (100, 901).

[0103] The second resolution bandwidth may be narrower than the first resolution bandwidth.

[0104] The operation of determining the spurious emission may include an operation of determining the spurious emission from adjacent frequency bands of a transmission frequency of the electronic device (100, 901) based on the first resolution bandwidth. The operation of determining the spurious emission may include an operation of analyzing an adjacent frequency band in which the spurious emission is detected based on the second resolution bandwidth.

[0105] The above-described multiple operations may further include an operation of adjusting a bias current of the power amplifier (130) based on the spurious radiation.

[0106] The operation of controlling the bias current may include an operation of determining a bias current range of the power amplifier (130) based on at least one of a transmission quality of the electronic device (100, 901) and a transmission power of the electronic device (100, 901). The operation of controlling the bias current may include an operation of controlling the bias current of the power amplifier (130) within the bias current range based on the spurious emission.

[0107] An electronic device (100, 901) according to one embodiment may include a memory (140, 930) including instructions and a processor (110, 920) electrically connected to the memory (140, 930) and configured to execute the instructions. Based on the instructions being executed by the processor (110, 920), the processor (110, 920) may control a plurality of operations of the electronic device (100, 901). The plurality of operations may include an operation of obtaining a feedback signal using a feedback receiver (121) to determine spurious emissions from the electronic device (100, 901). The plurality of operations may include an operation of analyzing the feedback signal using a first resolution bandwidth and a second resolution bandwidth narrower than the first resolution bandwidth. The above multiple operations may include an operation of adjusting the bias current of the power amplifier (130) based on analysis of the feedback signal.

[0108] A method for determining spurious emission according to one embodiment may include an operation of setting a first time interval during which a feedback receiver (121) operates as a spurious emission detection mode. The method may include an operation of determining spurious emission from the electronic device (100, 901) by analyzing a feedback signal obtained by the feedback receiver (121) based on a first resolution bandwidth and a second resolution bandwidth within the first time interval. The feedback signal may correspond to a radio frequency (RF) signal amplified by a power amplifier (130) of the electronic device (100, 901).

[0109] The method may further include an action of initiating a process for setting the first time interval based on at least one of a temperature of the electronic device (100, 901) and a transmission power of the electronic device (100, 901).

[0110] The above-described initiating operation may include an operation of initiating a process for setting the first time interval based on the current transmission power of the electronic device (100, 901) satisfying a threshold value.

[0111] The above threshold value may be determined based on the maximum transmission power of the electronic device (100, 901).

[0112] The operation of setting the first time interval may include an operation of randomly arranging the first time interval and the second time interval. The second time interval may include a time interval in which the feedback receiver (121) operates in a mode different from the spurious radiation detection mode.

[0113] The second resolution bandwidth may be narrower than the first resolution bandwidth.

[0114] The operation of determining the spurious emission may include an operation of detecting the spurious emission from adjacent frequency bands of a transmission frequency of the electronic device (100, 901) based on the first resolution bandwidth. The operation of determining the spurious emission may include an operation of analyzing the adjacent frequency band in which the spurious emission is detected based on the second resolution bandwidth.

[0115] The above method may further include an operation of adjusting the bias current of the power amplifier (130).

[0116] The operation of controlling the bias current may include an operation of determining a bias current range of the power amplifier (130_) based on at least one of a transmission quality of the electronic device (100, 901) and a transmission power of the electronic device (100, 901). The operation of controlling the bias current may include an operation of controlling the bias current of the power amplifier (130) within the bias current range.

[0117] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure pertains from the detailed document.

Claims

1. In an electronic device (100, 901), Memory for storing instructions (140, 930); and It includes a processor (110, 920) electrically connected to the above memory (140, 930) and executing the instructions, Based on the execution of the instructions by the processor (110, 920), the processor (110, 920) causes the electronic device (100, 901) to control a plurality of operations, The above multiple actions are: An operation of setting a first time interval during which a feedback receiver (121) operates in a spurious emission detection mode; and An operation of determining spurious emission from the electronic device (100, 901) by analyzing a feedback signal obtained by the feedback receiver (121) based on a first resolution bandwidth and a second resolution bandwidth within the first time interval. Including, The above feedback signal is, An electronic device (100, 901) corresponding to a radio frequency (RF) signal amplified by a power amplifier (130) of the electronic device (100, 901).

2. In paragraph 1, The above multiple actions are: An operation of initiating a process for setting the first time interval based on at least one of the temperature of the electronic device (100, 901) and the transmission power of the electronic device (100, 901). An electronic device (100, 901) further comprising:

3. In any one of paragraphs 1 and 2, The above disclosed action is, An electronic device (100, 901), comprising an operation of initiating a process for setting the first time interval based on a current transmission power of the electronic device (100, 901) satisfying a threshold value.

4. In any one of paragraphs 1 to 3, The above threshold is, An electronic device (100, 901), which is determined based on the maximum transmission power of the electronic device (100, 901).

5. In any one of paragraphs 1 to 4, The action of setting the above first time interval is: An action of randomly arranging the first and second time intervals Including, The above second time interval is, A time period during which the above feedback receiver (121) operates in a mode other than the above spurious radiation detection mode. An electronic device (100, 901) comprising:

6. In any one of paragraphs 1 to 5, The above second time interval is, A time period during which the above feedback receiver (121) operates in a mode to compensate for the transmission power of the above electronic device (100, 901). An electronic device (100, 901) comprising:

7. In any one of paragraphs 1 to 6, The above second resolution bandwidth is, An electronic device (100, 901) narrower than the first resolution bandwidth.

8. In any one of paragraphs 1 to 7, The operation of determining the above spurious radiation is as follows: An operation of determining the spurious emission from adjacent frequency bands of the transmission frequency of the electronic device (100, 901) based on the first resolution bandwidth; and An operation of analyzing an adjacent frequency band in which the above spurious radiation is detected based on the second resolution bandwidth. An electronic device (100, 901) comprising:

9. In any one of paragraphs 1 to 8, The above multiple actions are: An operation of adjusting the bias current of a power amplifier (130) based on the above spurious radiation. An electronic device (100, 901) further comprising:

10. In any one of paragraphs 1 to 9, The operation of controlling the above bias current is as follows: An operation of determining a bias current range of the power amplifier (130) based on at least one of the transmission quality of the electronic device (100, 901) and the transmission power of the electronic device (100, 901); and An operation of controlling the bias current of the power amplifier (130) within the bias current range based on the spurious emission. An electronic device (100, 901) comprising:

11. In electronic devices (100, 901), Memory for storing instructions (140, 930); and It includes a processor (110, 920) electrically connected to the above memory (140, 930) and executing the instructions, Based on the execution of the instructions by the processor (110, 920), the processor (110, 920) causes the electronic device (100, 901) to control a plurality of operations, The above multiple actions are: An operation of obtaining a feedback signal using a feedback receiver (121) to determine spurious radiation from the electronic device (100, 901); An operation of analyzing the feedback signal using a first resolution bandwidth and a second resolution bandwidth narrower than the first resolution bandwidth; and An operation of adjusting the bias current of a power amplifier (130) based on analysis of the above feedback signal. An electronic device (100, 901) comprising:

12. In a method for determining spurious radiation of an electronic device (100, 901), An operation of setting a first time interval during which a feedback receiver (121) operates in a spurious emission detection mode; and An operation of determining spurious emission from the electronic device (100, 901) by analyzing a feedback signal obtained by the feedback receiver (121) based on a first resolution bandwidth and a second resolution bandwidth within the first time interval. Including, The above feedback signal is, A method corresponding to a radio frequency (RF) signal amplified by a power amplifier (130) of the electronic device (100, 901).

13. In paragraph 12, An operation of initiating a process for setting the first time interval based on at least one of the temperature of the electronic device (100, 901) and the transmission power of the electronic device (100, 901). A method further comprising:

14. In any one of paragraphs 12 to 13, The above disclosed action is, A method comprising the steps of: initiating a process for setting the first time interval based on the current transmission power of the electronic device (100, 901) satisfying a threshold value.

15. In any one of paragraphs 12 to 14, The above threshold is, A method wherein the maximum transmission power of the electronic device (100, 901) is determined based on the maximum transmission power.

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