Electronic device for controlling transmission power of signal and method of operating same

Abstract

According to an embodiment, an electronic device includes: a memory storing instructions; at least one communication processor; and at least one RF circuit configured to process the RF signal on the basis of the signal from the at least one communication processor. The instructions, when executed by the at least one communication processor, may cause the electronic device to: identify, on a basis that the first event has been identified, whether a frequency band associated with the first event is a first frequency band; identifying whether a first parameter associated with transmission of the RF signal satisfies a first condition on the basis that the frequency band associated with the first event has been identified as the first frequency band; setting a first power to a transmit power of an RF signal associated with the first event on the basis of the first APT table, on the basis that the first parameter has been identified to satisfy the first condition; and changing the amplitude of the baseband signal transmitted to the RF circuit on the basis of the second APT table on the basis of having identified that the first parameter does not satisfy the first condition so as to set the second power to the transmit power of the RF signal associated with the first event.

Description

TECHNICAL FIELD

[0001] The disclosure relates to an electronic device for controlling transmission power of a signal and a method thereof. BACKGROUND

[0002] Wireless communication systems are developing in the direction of supporting higher data transmission rates in order to meet the increasing demand for wireless data traffic. Electronic devices can transmit and receive signals having 4G frequencies, frequencies in the 5G sub6 (below 6) zone, and frequencies of 3 GHz to 5 GHz in order to improve network access and data transmission rates.

[0003] Inside the electronic device, various electronic components are arranged to support various types of wireless mobile communication services using various frequency bands, and connectors, etc. such as communication ports provided for data compatibility can be equipped. The various components (for example, an application processor, a communication processor, or a connector) arranged in the electronic device can be mainly arranged on a printed circuit board through a surface mounted device (SMD) process.

[0004] Electronic components for high frequency communication and connectors for performing calibration on an RF signal path connected to the electronic components can be equipped in the printed circuit board. In a stage of assembling the electronic device, calibration can be performed using the connectors to identify whether the various electronic components for high frequency communication are abnormal. SUMMARY

[0005] TECHNICAL PROBLEM

[0006] According to an embodiment, an electronic device can include a memory storing instructions, at least one communication processor, and at least one RF circuit configured to process an RF signal based on a signal from the at least one communication processor. The instructions, when executed by the at least one communication processor, can cause the electronic device to identify whether a frequency band associated with a first event is a first frequency band based on identifying the first event. The instructions, when executed by the at least one communication processor, can cause the electronic device to identify whether a first parameter associated with transmission of the RF signal satisfies a first condition based on identifying that the frequency band associated with the first event is the first frequency band. The instructions, when executed by the at least one communication processor, can cause the electronic device to set a first power as a transmission power of the RF signal associated with the first event based on the first APT table based on identifying that the first parameter satisfies the first condition. The instructions, when executed by the at least one communication processor, can cause the electronic device to set a second power as the transmission power of the RF signal associated with the first event by changing an amplitude of a baseband signal transmitted to the RF circuit based on a second APT table based on identifying that the first parameter does not satisfy the first condition.

[0007] In an embodiment, the method of operating an electronic device can include identifying whether a frequency band associated with a first event is a first frequency band based on identifying the first event. The method of operating an electronic device can include identifying whether a first parameter associated with transmission of an RF signal satisfies a first condition based on identifying that the frequency band associated with the first event is the first frequency band. The method of operating an electronic device can include setting a first power as a transmission power of the RF signal associated with the first event based on the first APT table based on identifying that the first parameter satisfies the first condition. The method of operating an electronic device can include setting a second power as the transmission power of the RF signal associated with the first event by changing an amplitude of a baseband signal transmitted to an RF circuit based on a second APT table based on identifying that the first parameter does not satisfy the first condition.

[0008] According to an embodiment, a storage medium storing at least one instruction readable by a computer can be provided, and the at least one instruction, when executed by at least one processor of an electronic device, can cause the electronic device to perform at least one operation. The at least one operation can include identifying whether a frequency band associated with a first event is a first frequency band based on identifying the first event. The at least one operation can include identifying whether a first parameter associated with transmission of an RF signal satisfies a first condition based on identifying that the frequency band associated with the first event is the first frequency band. The at least one operation can include setting a first power as a transmission power of the RF signal associated with the first event based on the first APT table based on identifying that the first parameter satisfies the first condition. The at least one operation can include setting a second power as the transmission power of the RF signal associated with the first event by changing an amplitude of a baseband signal transmitted to an RF circuit based on a second APT table based on identifying that the first parameter does not satisfy the first condition.

[0009] Solutions to the problems according to the embodiments of the disclosure are not limited to the above-described solutions, and those skilled in the art can clearly understand the solutions not mentioned from the present specification and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a block diagram illustrating an electronic device within a network environment according to an embodiment.

[0011] Figure 2a is a block diagram illustrating an electronic device for supporting legacy network communication and 5G network communication according to an embodiment.

[0012] Figure 2b is a block diagram illustrating an electronic device for supporting legacy network communication and 5G network communication according to an embodiment.

[0013] Figure 3 is a block diagram illustrating an electronic device according to an embodiment.

[0014] Figure 4 A flowchart for describing an operation method of an electronic device according to an embodiment is illustrated.

[0015] Figure 5 is a block diagram illustrating an electronic device according to an embodiment.

[0016] Figure 6 A flowchart for describing an operation method of an electronic device according to an embodiment is illustrated.

[0017] Figure 7 A flowchart for describing an operation method of an electronic device according to an embodiment is illustrated.

[0018] Figure 8 A flowchart for describing an operation method of an electronic device according to an embodiment is illustrated.

[0019] Figure 9 A flowchart for describing an operation method of an electronic device according to an embodiment is illustrated. DETAILED DESCRIPTION

[0020] Figure 1 is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments. Referring to FIG. 1, Figure 1 , the electronic device 101 in the network environment 100 can communicate with an electronic device 102 via a first network 198 (e.g., a short-range wireless communication network), or an electronic device 104 or a server 108 via a second network 199 (e.g., a long-range wireless communication network). According to an embodiment, the electronic device 101 can communicate with the electronic device 104 via the server 108. According to an embodiment, the electronic device 101 can include a processor 120, a memory 130, an input module 150, a sound 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 (SIM) 196, or an antenna module 197. In some embodiments, at least one (e.g., the connection terminal 178) of the components can be omitted from the electronic device 101, or one or more other components can be added in the electronic device 101. In some embodiments, some of the components (e.g., the sensor module 176, the camera module 180, or the antenna module 197) can be implemented as a single integrated component (e.g., the display module 160).

[0021] The processor 120 can execute, for example, 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 coupled with the processor 120 and can perform various data processing or computation. According to an embodiment, as at least part of the data processing or computation, the processor 120 can store a command or data received from another component (e.g., the sensor module 176 or the communication module 190) in the volatile memory 132, process the command or data stored in the volatile memory 132, and store resulting data in the non-volatile memory 134. According to an embodiment, the processor 120 can include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor 123 (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor 121. For example, when the electronic device 101 includes the main processor 121 and the auxiliary processor 123, the auxiliary processor 123 can be adapted to consume less power than the main processor 121, or to be dedicated to a specific function. The auxiliary processor 123 can be implemented as separate from, or as part of, the main processor 121.

[0022] The auxiliary processor 123 (not the main processor 121) can control at least some of the functions or states related to at least one component (for example, the display module 160, the sensor module 176, or the communication module 190) among the components of the electronic device 101, for example, when the main processor 121 is in an inactive (for example, sleep) state, or together with the main processor 121, when the main processor 121 is in an active (for example, running an application) state. According to an embodiment, the auxiliary processor 123 (for example, an image signal processor or a communication processor) can be implemented as part of another component functionally related to the auxiliary processor 123 (for example, the camera module 180 or the communication module 190). According to an embodiment, the auxiliary processor 123 (for example, a neural processing unit) can include a hardware structure dedicated to artificial intelligence model processing. The artificial intelligence model can be generated through machine learning. For example, such learning can be performed by the electronic device 101 at which AI is executed or via a separate server (for example, the server 108). The learning algorithm can include, but is not limited to, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The AI model can include multiple artificial neural network layers. The artificial neural network can be 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), or a deep Q-network, or a combination of two or more thereof, but is not limited thereto. Additionally or alternatively, the AI model can include a software structure other than a hardware structure.

[0023] The memory 130 can store various data used by at least one component (for example, the processor 120 or the sensor module 176) of the electronic device 101. The various data can include, for example, software (for example, a program 140) and input data or output data for commands related thereto. The memory 130 can include the volatile memory 132 or the non-volatile memory 134.

[0024] The program 140 can be stored in the memory 130 as software, and can include, for example, an operating system (OS) 142, middleware 144, or an application 146.

[0025] The input module 150 can receive a command or data to be used by other component (e.g., the processor 120) of the electronic device 101, from the outside (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).

[0026] The sound output module 155 can output sound signals to the outside of the electronic device 101. The sound output module 155 can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as playing multimedia or playing record, and the receiver can be used for receiving an incoming call. According to an embodiment, the receiver can be implemented as separate from the speaker, or can be implemented as part of the speaker.

[0027] The display module 160 can visually provide information to the outside (e.g., a user) of the electronic device 101. The display module 160 can include, for example, a display, a hologram device, or a projector and a control circuit for controlling a corresponding one of the display, the hologram device, and the projector. According to an embodiment, the display module 160 can include a touch sensor adapted to detect a touch, or a pressure sensor adapted to measure the intensity of force incurred by the touch.

[0028] The audio module 170 can convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module 170 can obtain the sound via the input module 150, or output the sound via the sound output module 155 or an external electronic device (e.g., an electronic device 102 (e.g., a speaker or a headphone)) directly or wirelessly coupled with the electronic device 101.

[0029] The sensor module 176 can detect an operational state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a state of a user) external to the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module 176 can include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0030] The interface 177 can support one or more specified protocols to be used for the electronic device 101 to be coupled with the external electronic device (e.g., the electronic device 102) directly or wirelessly. According to an embodiment, the interface 177 can include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

[0031] The connection terminal 178 can include a connector via which the electronic device 101 can be physically connected with the external electronic device (e.g., the electronic device 102). According to an embodiment, the connection terminal 178 can include, for example, a HDMI connector, a USB connector, a SD card connector, or an audio connector (e.g., a headphone connector).

[0032] The haptic module 179 can convert electrical signal into a mechanical stimulus (e.g., vibration or movement) or electrical stimulus that can be recognized by users through tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module 179 can include, for example, a motor, a piezoelectric, or an electric stimulator.

[0033] The camera module 180 can capture still images or moving images. According to an embodiment, the camera module 180 can include one or more lenses, image sensors, image signal processors, or flashes.

[0034] The power management module 188 can manage power supplied to the electronic device 101. According to an embodiment, the power management module 188 can be implemented as at least part of, for example, a power management integrated circuit (PMIC).

[0035] The battery 189 can supply power to at least one component of the electronic device 101. According to an embodiment, the battery 189 can include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell.

[0036] The communication module 190 can support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., the electronic device 102, the electronic device 104, or the server 108) and performing communication via the established communication channel. The communication module 190 can include one or more communication processors that are operable independently from the processor 120 (e.g., an application processor (AP)) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication module 190 can 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 (PLC) module). A corresponding one of these communication modules can communicate with the external electronic device via the first network 198 (e.g., a short-range communication network, such as Bluetooth, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the second network 199 (e.g., a long-range communication network, such as a conventional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN)). These various types of communication modules can be implemented as a single component (e.g., a single chip) or can be implemented as multiple components (e.g., multiple chips) separate from each other. The wireless communication module 192 can identify or authenticate the electronic device 101 in a communication network, such as the first network 198 or the second network 199, using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module 196.

[0037] The wireless communication module 192 can support a 5G network and next-generation communication technology (e.g., new radio (NR) access technology) after a 4G network. The NR access technology can support enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), or ultra-reliable low-latency communications (URLLC). The wireless communication module 192 can support a high frequency band (e.g., a millimeter wave band) to achieve, for example, a high data transmission rate. The wireless communication module 192 can support various technologies for securing performance on a high frequency band, such as, for example, beamforming, massive multiple-input multiple-output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module 192 can support various requirements designated in the electronic device 101, an external electronic device (e.g., an electronic device 104), or a network system (e.g., a second network 199). According to an embodiment, the wireless communication module 192 can support a peak data rate for implementing eMBB (e.g., 20 Gbps or more), a loss coverage for implementing mMTC (e.g., 164 dB or less), or a U-plane latency for implementing URLLC (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or 1 ms or less for a round trip).

[0038] The antenna module 197 can transmit or receive a signal or power to or from the outside (e.g., an external electronic device) of the electronic device 101. According to an embodiment, the antenna module 197 can include an antenna including a radiating element including a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module 197 can include a plurality of antennas (e.g., array antennas). In this case, at least one antenna appropriate for a communication scheme used in a communication network, such as the first network 198 or the second network 199, can be selected from the plurality of antennas by, for example, the communication module 190. A signal or power can then be transmitted or received between the communication module 190 and an external electronic device via the selected at least one antenna. According to some embodiments, in addition to the radiating element, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element can additionally be formed as part of the antenna module 197.

[0039] According to an embodiment, the antenna module 197 can form a millimeter wave antenna module. According to an embodiment, the millimeter wave (mmWave) antenna module can include a printed circuit board, an RFIC, and a plurality of antennas (e.g., array antennas), in which the RFIC is disposed on a first surface (e.g., a bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a designated high frequency band (e.g., a millimeter wave band), and the plurality of antennas are disposed on a second surface (e.g., a top surface or a side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving a signal of the designated high frequency band.

[0040] At least some of the above-described components can be connected to each other via an inter-peripheral communication scheme (e.g., a bus, a general purpose input output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)) and transmit signals (e.g., commands or data) between them.

[0041] According to an embodiment, commands or data can be transmitted or received between the electronic device 101 and an external electronic device 104 via the server 108 connected with the second network 199. Each of the electronic devices 102 and 104 can be the same type of device as the electronic device 101 or a different type of device from the electronic device 101. According to an embodiment, all or some of the operations to be executed by the electronic device 101 can be executed at one or more of the external electronic devices 102, 104, or server 108. For example, if the electronic device 101 is to automatically perform a function or a service or is to perform a function or a service in response to a request from a user or another device, the electronic device 101, instead of executing the function or the service itself, or in addition to executing the function or the service, can request one or more of the external electronic devices to execute at least part of the function or the service. The external electronic device(s) that receive(s) the request can execute at least part of the function or the service requested or another function or another service related to the request, and transfer a result of the execution to the electronic device 101. The electronic device 101 can provide the result as at least part of a reply to the request, with or without further processing of the result. To this end, a cloud computing technique, a distributed computing technique, a mobile edge computing (MEC) technique, or a client-server computing technique can be used, for example. The electronic device 101 can use, for example, distributed computing or mobile edge computing to provide an ultra-low-latency service. In another embodiment, the external electronic devices 104 can include an Internet of Things (IoT) device. The server 108 can be an intelligent server using machine learning and / or a neural network. According to an embodiment, the external electronic devices 104 or the server 108 can be included in the second network 199. The electronic device 101 can be applied to intelligent services (for example, smart home, smart city, smart car, or health care), based on 5G communication technology or IoT-related technology.

[0042] Figure 2a is a block diagram 200 illustrating an electronic device for supporting legacy network communication and 5G network communication, according to an embodiment. Referring to FIG. 2, Figure 2aThe electronic device 101 may include a first communication processor 212, a second communication processor 214, a first radio frequency integrated circuit (RFIC) 222, a second RFIC 224, a third RFIC 226, a fourth RFIC 228, a first radio frequency front-end (RFFE) 232, a second RFFE 234, a first antenna module 242, a second antenna module 244, a third antenna module 244, and an antenna 248. The electronic device 101 may also include a processor 120 and a memory 130. The second network 199 may include a first cellular network 292 and a second cellular network 294. According to another embodiment, the electronic device 101 may also include... Figure 1 At least one of the components shown is included, and the second network 199 may also include at least one other network. According to an embodiment, the first communication processor 212, the second communication processor 214, the first RFIC 222, the second RFIC 224, the fourth RFIC 228, the first RFFE 232, and the second RFFE 234 may form at least a portion of the wireless communication module 192. According to another embodiment, the fourth RFIC 228 may be omitted or included as part of the third RFIC 226.

[0043] The first communication processor 212 can establish a communication channel in a frequency band to be used for wireless communication with the first cellular network 292, and support conventional network communication via the established communication channel. According to an embodiment, the first cellular network 292 may include second-generation (2...) nd A second communication processor 214 can establish a communication channel corresponding to a designated frequency band (e.g., about 6 GHz to about 60 GHz) outside the frequency band to be used for wireless communication with the second cellular network 294, and support 5G network communication via the established communication channel. According to an embodiment, the second cellular network 294 can be a 5G network defined by 3GPP. Furthermore, according to an embodiment, the first communication processor 212 or the second communication processor 214 can establish a communication channel corresponding to another designated frequency band (e.g., about 6 GHz or less) outside the frequency band to be used for wireless communication with the second cellular network 294, and support 5G network communication via the established communication channel.

[0044] The first communication processor 212 can transmit and receive data to and from the second communication processor 214. For example, data that should be transmitted via the second cellular network 294 can be scheduled to be transmitted via the first cellular network 292. In this case, the first communication processor 212 can receive the transmission data from the second communication processor 214. For example, the first communication processor 212 can transmit and receive data to and from the second communication processor 214 via the inter-processor interface 213. The inter-processor interface 213 can be implemented as, for example, a universal asynchronous receiver / transmitter (UART) (e.g., a high speed-UART (HS-UART)) interface or a peripheral component interconnect bus express (PCIe) interface, but the type thereof is not limited. Alternatively, the first communication processor 212 and the second communication processor 214 can exchange control information and packet data information using, for example, a shared memory. The first communication processor 212 can transmit and receive various information to and from the second communication processor 214, such as sensing information, information on output intensity, and resource block (RB) allocation information.

[0045] According to implementation, the first communication processor 212 can not be directly coupled to the second communication processor 214. In this case, the first communication processor 212 can transmit and receive data to and from the second communication processor 214 via the processor 120 (e.g., an application processor). For example, the first communication processor 212 and the second communication processor 214 can transmit and receive data to and from the processor 120 (e.g., an application processor) via an HS-UART interface or a PCIe interface, but the type of interface is not limited. Alternatively, the first communication processor 212 and the second communication processor 214 can exchange control information and packet data information by using, for example, the processor 120 (e.g., an application processor) and a shared memory.

[0046] According to an embodiment, the first communication processor 212 and the second communication processor 214 can be incorporated in a single chip or a single package. According to an embodiment, the first communication processor 212 or the second communication processor 214 can be incorporated in a single chip or a single package together with the processor 120, the auxiliary processor 123, or the communication module 190. For example, as in Figure 2bIn particular embodiments, the communication processor 440 can support functionality for communicating with both the first cellular network 292 and the second cellular network 294.

[0047] For transmission, the first RFIC 222 can convert baseband signals generated by the first communication processor 212 to radio frequency (RF) signals of about 700 MHz to about 3 GHz used in the first cellular network 292 (e.g., a legacy network). For reception, RF signals can be obtained from the first network 292 (e.g., a legacy network) via an antenna (e.g., the first antenna module 242) and pre-processed via an RFFE (e.g., the first RFFE 232). The first RFIC 222 can convert the pre-processed RF signals to baseband signals so that the baseband signals can be processed by the first communication processor 212.

[0048] For transmission, the second RFIC 224 can convert baseband signals generated by the first communication processor 212 or the second communication processor 214 to RF signals in a Sub6 band (e.g., about 6 GHz or lower) used in the second cellular network 294 (e.g., a 5G network). For reception, 5G Sub6 RF signals can be obtained from the second cellular network 294 (e.g., a 5G network) via an antenna (e.g., the second antenna module 244) and pre-processed in an RFFE (e.g., the second RFFE 234). The second RFIC 224 can convert the pre-processed 5G Sub6 RF signals to baseband signals so that the baseband signals can be processed by a corresponding one of the first communication processor 212 and the second communication processor 214.

[0049] For transmission, the third RFIC 226 can convert baseband signals generated by the second communication processor 214 to RF signals in a 5G Above6 (Above 6) band (e.g., about 6 GHz to about 60 GHz) to be used in the second cellular network 294 (e.g., a 5G network). For reception, 5G Above6 RF signals can be obtained from the second cellular network 294 (e.g., a 5G network) via an antenna (e.g., the antenna 248) and pre-processed via the third RFFE 236. The third RFIC 226 can convert the pre-processed 5G Above6 RF signals to baseband signals so that the baseband signals can be processed by the second communication processor 214. According to embodiments, the third RFFE 236 can be formed as part of the third RFIC 226.

[0050] According to an embodiment, the electronic device 101 can include a fourth RFIC 228 separate from or as part of the third RFIC 226. In this case, the fourth RFIC 228 can convert a baseband signal generated by the second communication processor 214 into an RF signal in an intermediate frequency band (e.g., about 9 GHz to about 11 GHz) (hereinafter, referred to as an IF signal) and provide the IF signal to the third RFIC 226. The third RFIC 226 can convert the IF signal into a 5G Above6 RF signal. During reception, the 5G Above6 RF signal can be received from the second cellular network 294 (e.g., a 5G network) via an antenna (e.g., the antenna 248) and converted into an IF signal by the third RFIC 226. The fourth RFIC 228 can convert the IF signal into a baseband signal so that the baseband signal can be processed by the second communication processor 214.

[0051] According to an embodiment, the first RFIC 222 and the second RFIC 224 can be implemented as at least part of a single chip or a single package. According to an embodiment, if the first RFIC 222 and the second RFIC 224 are implemented as a single chip or a single package in Figure 2a or Figure 2b

[0052] ​According to an embodiment, the third RFIC 226 and the antenna 248 can be arranged on the same substrate to form a third antenna module 246. For example, the wireless communication module 192 or the processor 120 can be arranged on a first substrate (e.g., a main PCB). In this case, the third RFIC 226 can be arranged in a partial area (e.g., a bottom surface) of a second substrate (e.g., a sub-PCB) other than the first substrate, and the antenna 248 can be arranged in another partial area (e.g., a top surface) of the second substrate to form the third antenna module 246. Since the third RFIC 226 and the antenna 248 are arranged on the same substrate, it is possible to shorten the length of a transmission line between the third RFIC 226 and the antenna 248. This can reduce the amount of loss (e.g., attenuation) of a high frequency band (e.g., about 6 GHz to about 60 GHz) signal for 5G network communication, for example, due to the transmission line. Accordingly, the electronic device 101 can increase the quality or speed of communication with the second cellular network 294 (e.g., a 5G network).

[0053] According to an embodiment, the antenna 248 can be formed as an antenna array including a plurality of antenna elements that can be used for beamforming. In this case, the third RFIC 226 can include a plurality of phase shifters 238 corresponding to the plurality of antenna elements, for example, as part of the third RFFE 236. During transmission, each of the plurality of phase shifters 238 can change the phase of a 5GAbove6 RF signal to be transmitted to the outside of the electronic device 101 (e.g., a base station in a 5G network) via a corresponding antenna element. During reception, each phase shifter 238 can change the phase of a 5GAbove6 RF signal received from the outside via a corresponding antenna element to the same or substantially the same phase. This makes it possible to perform transmission or reception via beamforming between the electronic device 101 and the outside.

[0054] The second cellular network 294 (e.g., a 5G network) can operate independently of the first cellular network 292 (e.g., a legacy network) (e.g., Stand-Alone (SA)) or can be connected to and operate with the first cellular network 292 (e.g., Non-Stand alone (NSA)). For example, in a 5G network, only an access network (e.g., a 5G radio access network (RAN) or a next generation RAN (NG RAN)) can exist, and a core network (e.g., a next generation core (NGC)) can not exist. In this case, after accessing the access network of the 5G network, the electronic device 101 can access an external network (e.g., the Internet) under the control of a core network (e.g., an evolved packed core (EPC)) of a legacy network. Protocol information (e.g., LTE protocol information) for communication with the legacy network and protocol information (e.g., New Radio (NR) protocol information) for communication with the 5G network can be stored in the memory 230 and accessed by another component (e.g., the processor 120, the first communication processor 212, or the second communication processor 214).

[0055] Figure 3 is a block diagram illustrating an electronic device according to an embodiment.

[0056] According to an embodiment of the disclosure, the electronic device 101 can be configured to include an antenna module 340, an RFFE 330 electrically connected to the antenna module 340, an RFIC 320 electrically connected to the RFFE 330, and a communication processor 310 operatively connected to the RFIC 320. In an embodiment of the disclosure, an RF component including at least one of the RFIC 320, the RFFE 330, or the antenna module 340 can be referred to as an "RF circuit." In an embodiment, the RF circuit can be configured to include at least one of the communication processor 310, the RFIC 320, the RFFE 330, or the antenna module 340. Figure 3 In the embodiment, the electronic device 101 is illustrated as including, but not limited to, the communication processor 310, the RFIC 320, the RFFE 330, and / or the antenna module 340. For example, the electronic device 101 can further include at least one component illustrated in Figure 1 In the embodiment, the electronic device 101 is illustrated as including, but not limited to, the communication processor 310, the RFIC 320, the RFFE 330, and / or the antenna module 340. For example, the electronic device 101 can further include at least one component illustrated in

[0057] In an embodiment, the antenna module 340 can be included in the antenna module 197 in Figure 1 at least one of the first antenna module 242, the second antenna module 244, or the third antenna module 246 in Figure 2a In an embodiment, the antenna module 340 can be included in the antenna module 197 in Figure 3An antenna module 340 is shown, and the electronic device 101 may include one or more antenna modules. The antenna module 340 can transmit RF signals and / or receive RF signals from the outside.

[0058] In an embodiment, RFFE 330 may be included Figure 2a In at least one of the first RFFE 232, the second RFFE 234, or the third RFFE 236. For ease of description, Figure 3 An RFFE 330 is shown, and electronic device 101 may include one or more RFFEs. RFFE 330 may be configured to include at least one power amplifier (PA) 331, at least one low noise amplifier (LNA) 333, an SPDT switch 335 electrically connected to PA 331 and LNA 333, and a coupler 337 electrically connected to SPDT switch 335. PA 331 may amplify the RF signal output from the transmitting circuit 321 of RFIC 320. The RF signal amplified by PA 331 may pass through filter 341 via SPDT switch 335 and coupler 337. LNA 333 may amplify the RF signal already received by antenna module 340 and having passed through filter 341 and SPDT switch 335. The RF signal amplified by LNA 333 may be transmitted to the receiving circuit 323 of RFIC 320. In an embodiment, a feedback signal may be generated when the RF signal amplified by PA 331 passes through coupler 337. The feedback signal generated by coupler 337 can be transmitted to the feedback circuit 325 of RFIC 320. Communication processor 310 and / or RFIC 320 can identify the transmit power of the RF signal based on the feedback signal. Communication processor 310 can increase or decrease the transmit power of the RF signal transmitted by antenna module 340 based on the identification that the identified transmit power differs from the target power. In embodiments, including... Figure 3 At least one RF component of the RFFE 330 shown is exemplary, and according to embodiments of this disclosure, the RFFE 330 may include components related to... Figure 3 The components shown are different from those shown. For example, the RFFE 330 may also include a diplexer (not shown) and / or a duplexer (not shown).

[0059] In an embodiment, RFIC 320 may be included Figure 2a At least one of the first RFIC 222, the second RFIC 224, the third RFIC 226, or the fourth RFIC 228. For ease of description, Figure 3An RFIC 320 is shown in FIG. 3, and the electronic device 101 can include one or more RFICs. The RFIC 320 can be configured to include a transmission circuit 321, a reception circuit 323, and / or a feedback circuit 325. For example, the RFIC 320 can be electrically connected to the communication processor 310 through the data signal line 311 and the control signal line 313. The RFIC 320 can transmit and receive data to and from the communication processor 310 through the data signal line 311. The RFIC 320 can receive a control signal from the communication processor 310 through the control signal line 313. For example, the RFIC 320 can receive a control signal for controlling at least one of the transmission circuit 321, the reception circuit 323, or the feedback circuit 325 from the communication processor 310 through the control signal line 313. The transmission circuit 321 can generate an RF signal based on a digital signal received from the communication processor 310. The transmission circuit 321 can include, for example, a digital-to-analog converter (DAC) (not shown) for converting a digital signal output by the communication processor 310 into an analog signal, a mixer (not shown) for mixing the converted analog signal and a signal output by an oscillator (not shown), and / or a PA driver (not shown) for amplifying the mixed RF signal. In an embodiment, the RFIC 320 can include one or more transmission circuits. The reception circuit 323 can convert an RF signal that has been received through the antenna module 340 and amplified by the RFFE 330 into a digital signal to be delivered to the communication processor 310. The feedback circuit 325 can obtain a signal for detecting a transmission power of an RF signal transmitted through the antenna module 340 based on a signal delivered through the coupler 337.

[0060] In an embodiment, the communication processor 310 can be included in Figure 1 the processor 120 in the electronic device 100, Figure 2a the first communication processor 212 and the second communication processor 214 in the electronic device 200, or Figure 2bIn an embodiment, the communication processor 310 can control the overall operation for changing the magnitude of the transmission power of the RF signal transmitted through the antenna module 340. In an embodiment, the communication processor 310 can control the transmission power of the RF signal transmitted through the antenna module 340 based on controlling the magnitude of the digital gain for outputting a digital signal and / or an analog gain corresponding to an RF component included in the RF circuit (e.g., the RFIC 320 and / or the RFFE 330). In an embodiment, based on controlling the magnitude of the digital gain and / or the analog gain, the communication processor 310 can reduce the transmission power of the RF signal through the antenna module 340. In an embodiment, the operation in which the electronic device 101 (or the communication processor 310) reduces the transmission power of the RF signal can be referred to as a "power back-off" operation, and there is no limitation on the term. The operation performed by the communication processor 310 to control the transmission power of the RF signal will be described later.

[0061] In an embodiment, the electronic device 101 can further include a filter 341 located between the RFFE 330 and the antenna module 340. For ease of description, one filter 341 is shown in Figure 3 In an embodiment, the electronic device 101 can further include a filter 341 located between the RFFE 330 and the antenna module 340. For ease of description, one filter 341 is shown in

[0062] In an embodiment, at least one RF component included in the RFIC 320 and / or the RFFE 330 can generate a spurious transmission at a frequency away from a target frequency band at the time of transmission of an RF signal due to a non-linear characteristic. For example, a mixer included in the transmission circuit 321 can generate a spur due to a sum or a difference of harmonic components in addition to generating a frequency component corresponding to a sum or a difference of input frequencies. In an embodiment, the spur generated by the mixer can be amplified after passing through a PA driver included in the transmission circuit 321 and a PA 331 included in the RFFE 330. In an embodiment, an RF signal modulated by an orthogonal frequency division multiplexing (OFDM) scheme can exhibit a relatively high peak-to-average power ratio (PAPR). The PA 331 included in the RFFE 330 can generate inter-modulation distortion (IMD) as a non-linear component by amplifying the modulated RF signal. A filter 341 can remove the amplified spur and the IMD. In an embodiment, among the amplified spur and the IMD, a frequency component corresponding to an edge frequency of a frequency band corresponding to the filter 341 can pass through the filter 341 and be transmitted into the air through the antenna module 340. In an embodiment, the spur transmitted through the antenna module 340 can cause interference in a wireless communication channel of another electronic device that communicates with a network (or a base station) based on a frequency band corresponding to the filter 341. In an embodiment, the electronic device 101 can control at least one RF component so that an RF signal transmitted through the antenna module 340 can satisfy a 3GPP standard to reduce the interference in the wireless communication channel of the other electronic device. The electronic device 101 can reduce an amplitude of the spur to a level satisfying the standard based on controlling at least one RF component to operate in a linear region. The electronic device 101 can improve a band edge performance based on reducing the amplitude of the spur.

[0063] In an embodiment, the electronic device 101 can reduce the relative magnitude of the spur based on adjusting the bias voltage and / or the bias current supplied to the PA 331. For example, the electronic device 101 can obtain the bias voltage (e.g., "PA bias") and the bias current (e.g., "PA ICQ") corresponding to each target power based on performing a power sweep in the RF calibration procedure. The electronic device 101 can store each bias voltage and bias current corresponding to the target power within a range of the power sweep in a memory (e.g., the memory 130). Upon transmitting the RF signal, the electronic device 101 can adjust the bias current supplied to the PA 331 based on identifying the bias voltage and / or the bias current corresponding to the target power. In an embodiment, a power modulator (not illustrated) can operate in an average power tracking (APT) mode to supply the bias current to the PA 331. The electronic device 101 can control the PA 331 to operate linearly based on increasing the bias and / or the ICQ supplied to the PA 331.

[0064] In an embodiment, the electronic device 101 can control the PA 331 to operate in the linear region based on limiting the maximum transmit power of the electronic device 101. In an embodiment, based on limiting the maximum transmit power, the electronic device 101 can reduce the amount of current consumed upon a transmission operation (e.g., an operation of providing a voice call service) compared to a PA bias scheme. The electronic device 101 can maintain the linearity of the PA 331 based on adjusting the bias current supplied to the PA 331 based on considering the back-off margin of the PA 331. The electronic device 101 can improve the band-edge performance based on maintaining the PA 331 from operating in the non-linear region.

[0065] In an embodiment, the electronic device 101 can reduce the magnitude of the spur emitted by the antenna module 340 based on reducing the digital gain of the communication processor 310. In an embodiment, the spur included in the digital signal output by the communication processor 310 can have a relatively greater effect on the magnitude of the spur emitted into the air than the spur generated by the RFIC 320 and / or the RFFE 330. For example, the spur included in the digital signal can have a dominant effect on the spur amplified by the RFIC 320 and the RFFE 330 and emitted through the antenna module 340. The electronic device 101 can relatively reduce the magnitude of the total spur emitted through the antenna module 340 based on reducing the digital gain of the communication processor 310. For example, the communication processor 310 can reduce the magnitude of the baseband signal transmitted to the RFIC 320 through the data signal line 311 based on reducing the digital gain. The communication processor 310 can increase the magnitude of the analog gain of the RFIC 320 based on transmitting the control signal to the RFIC 320 through the control signal line 313. The communication processor 310 can amplify the baseband signal of which the magnitude is reduced based on increasing the magnitude of the analog gain of the RFIC 320. For example, the communication processor 310 can increase the RF gain index (RGI) value corresponding to the PA driver of the transmission circuit 321. The communication processor 310 can compensate for the transmission power of the RF signal emitted into the air through the antenna module 340 based on reducing the magnitude of the digital gain and increasing the magnitude of the analog gain. The electronic device 101 can transmit the RF signal of which the magnitude of the spur is reduced without reducing the uplink coverage based on compensating for the transmission power of the RF signal by increasing the magnitude of the analog gain, compared to the scheme of limiting the maximum transmission power of the electronic device 101. The electronic device 101 can emit the RF signal satisfying the maximum power reduction (MPR) defined according to the 3GPP standard through the antenna module 340 based on compensating for the transmission power of the RF signal. In an embodiment, the operation of the electronic device 101 (or the communication processor 310) to reduce the magnitude of the spur emitted through the antenna module 340 based on reducing the magnitude of the digital gain and increasing the magnitude of the analog gain can be referred to as a "Tx front end back-off mode operation."

[0066] Figure 4 A flowchart 400 for describing an operation method of an electronic device according to an embodiment is illustrated.

[0067] According to an embodiment, in operation 401, the electronic device 101 (e.g., at least one of the processor 120, the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the communication processor 310) can identify a first event. In an embodiment, the electronic device 101 can identify a voice call event or a handover event. In an embodiment, the electronic device 101 can perform a cell search based on scanning one or more frequency bands. The electronic device 101 can select a cell capable of communicating with the electronic device 101 based on performing the cell search. For example, the electronic device 101 can perform cell selection based on receiving a synchronization signal having a received signal strength indication (RSSI) capable of being decoded from an LTE communication network.

[0068] In an embodiment, in operation 403, the electronic device 101 can identify whether a frequency band associated with the first event is a first frequency band based on identifying the first event. The electronic device 101 can identify whether a frequency band corresponding to the selected cell is a first frequency band in which a backoff margin is relatively small. The first frequency band can be, for example, a B30 frequency band of about 2310 MHz or a B48 frequency band of about 3600 MHz, and the first frequency band is not limited to the above-described example. The electronic device 101 can identify an APT table to be referred to for setting a transmission power of an RF signal in the first APT table or the second APT table based on identifying whether the frequency band associated with the first event is the first frequency band.

[0069] In an embodiment, the electronic device 101 can store an APT table corresponding to B30 based on performing power scanning in an RF calibration procedure. A power scanning condition in the RF calibration procedure can be set on the premise that a specific number of RBs is allocated. In an embodiment, a transmission power of an RF signal corresponding to B30 can be set based on an APT table stored in the RF calibration procedure as shown in Table 1 below. The APT table according to Table 1 can be referred to as a "first APT table" or a "default APT table."

[0070]

Table 1

[0071]

[0072] In an embodiment, with reference to the APT table in Table 1, the electronic device 101 can be configured to transmit an RF signal having a power of about 25.6 dBm based on the magnitude of controlling the hardware gain. In an embodiment, the transmission power of about 25.6 dBm corresponding to the RGI value of 51 can indicate the magnitude of the power identified at the antenna module end. For example, if the magnitude of the front-end loss due to hardware is about 4 dBm, for the transmission power of about 25.6 dBm, the power magnitude of the RF signal corresponding to the B30 band output by the PA can be set to about 29.6 dBm. In an embodiment, if the RGI value is 52, since the output power of the PA exceeds about 29.6 dBm, the maximum RGI value on the APT table can be limited to 51 in consideration of the possibility of damage to the hardware (e.g., a diplexer, a duplexer, a switch, and / or a PA). In an embodiment, in an online state of network communication associated with the B30 band, the parameters associated with the uplink signal can be set differently from the RF calibration procedure. For example, the electronic device 101 can report the strength of a synchronization signal to a base station managing the cell selected in operation 401. The electronic device 101 can receive information associated with the bandwidth, the modulation scheme, or the number of RBs from the base station in response to the report. In an embodiment, if the parameters associated with the uplink signal are set differently from the settings of the RF calibration procedure, the electronic device 101 can transmit an RF signal having a power less than the target power due to the lack of RGI space. In an embodiment, the RGI space can be a value obtained by subtracting the maximum RGI value through power scanning (or APT scanning) from the RGI value for outputting the maximum power. For example, with reference to Table 1, the maximum RGI value on the APT table for the B30 band can be 51. With reference to Table 1, the RGI value for outputting the Apt power having a value of 25 can be 49. The RGI space of the B30 band can be 2 obtained by subtracting 51 from 49. In an embodiment, if the RGI space is insufficient, in a TxFE (transmission feedback) fallback mode, an RF signal having a transmission power less than the maximum transmission power according to the APT table can be output through an antenna module (e.g., the antenna module 340). In an embodiment, in an online call scenario of B30, the maximum transmission power of the RF signal output through the antenna module can be about 23.0 dBm, as shown in Table 2 below.

[0073]

Table 2

[0074]

[0075] In an embodiment, with reference to Table 2, the requested time slot power can represent the transmission power of the RF signal required by the network (or base station). The combined power can be a measured value of the transmission power of the RF signal output from the end of the antenna module. In an embodiment, upon the transmission operation based on B30, the electronic device 101 can relatively reduce the spurs output through the antenna module based on operating in the TxFE backoff mode. In an embodiment, if the electronic device 101 operates in the TxFE backoff mode, the electronic device 101 can reduce the amplitude of the spur input to the RFIC (e.g., the RFIC 320) by about 3 dB based on the backoff of the digital gain. In an embodiment, in order to output a target power of about 23 dB, the electronic device 101 can need to increase the RGI value corresponding to the analog gain by 3 code words. With reference to Table 1, since the maximum RGI value on the APT table is set to 51, the electronic device 101 can increase the RGI value by 2 code words based on the RGI value of 51 and output an RF signal having a maximum transmission power of about 1 dB less than the target power of about 22.0 dBm. In an embodiment, if the electronic device 101 operates in the TxFE backoff mode based on the APT table in Table 1, an RF signal having a power that does not satisfy the maximum transmission power according to the allowance standard of the federal communications commission (FCC) can be output by the electronic device 101. In an embodiment, the upper limit of the maximum transmission power according to the allowance standard of the FCC can be +1 dB compared to the target power. The lower limit of the maximum transmission power according to the allowance standard of the FCC can be -1.5 dB compared to the target power. In an embodiment, if the electronic device 101 operates in the TxFE backoff mode based on the APT table in Table 1, the UL coverage of the electronic device can also be reduced. In an embodiment, the electronic device 101 can set the transmission power of the RF signal based on the second APT table so that the maximum transmission power of the RF signal corresponding to the first frequency band having a relatively small RGI space satisfies the FCC standard upon transmission. In an embodiment, based on identifying that the frequency band associated with the first event is not the first frequency band (operation 403 - No), in operation 405, the electronic device 101 can set the first power as the transmission power of the RF signal associated with the first event based on the first APT table. The electronic device 101 can set the power as the transmission power of the RF signal associated with the first event according to the first APT table stored in the RF calibration procedure based on identifying that the frequency band associated with the first event is the second frequency band having a relatively large transmission power space. In an embodiment, based on identifying that the frequency band associated with the first event is the first frequency band (operation 403 - Yes), in operation 407, the electronic device 101 can identify whether the first parameter associated with the transmission of the RF signal satisfies the first condition.In an embodiment, the first condition can include at least one of a bandwidth, a modulation scheme, or a number of RBs that is set in association with network communication based on the edge frequency of the first frequency band being matched with the first parameter. For example, a condition for securing performance of network communication based on the edge frequency of the first frequency band can be set. The electronic device 101 can identify whether the first parameter including at least one of information associated with a bandwidth, a modulation scheme, or a number of RBs received from the network satisfies the condition. For example, the first condition can be a case where a partial RB is allocated in a 10 MHz bandwidth and a modulation scheme is 16-QAM.

[0076] In an embodiment, based on identifying that the first parameter related to transmission of the RF signal does not satisfy the first condition (operation 407 - No), in operation 409, the electronic device 101 can set the second power as the transmission power of the RF signal related to the first event by changing the amplitude of the baseband signal transferred to the RF circuit based on a second APT table. In an embodiment, based on identifying the first parameter, the electronic device 101 can identify that all RBs are allocated in a 10 MHz bandwidth and a modulation scheme is QPSK. The electronic device 101 can operate in a TxFE back-off mode based on identifying that the first parameter does not satisfy the first condition. The electronic device 101 can set the transmission power of the RF signal corresponding to B30 so as to secure a band edge performance based on a second APT table stored additionally in an RF calibration process as shown in Table 3 below. In an embodiment, the second APT table can be referred to as a "TxFE back-off mode APT table".

[0077]

Table 3

[0078]

[0079] In an embodiment, referring to Table 3, the RF calibration can be performed in a state in which a TxFE backoff of 2 dB is applied. If the RF calibration is performed in a state in which the TxFE backoff is applied, the input power of the RFIC (e.g., the RFIC 320) is reduced, and thus the power sweep can be performed based on a larger RGI value (e.g., an RGI value that is about 2 codewords higher than the maximum RGI value in a state in which the TxFE backoff is not applied). If the RF calibration is performed in a state in which the TxFE backoff is applied, even if the power sweep is performed based on the larger RGI value, the power corresponding to the maximum RGI value on the table can not exceed the maximum power (max power) in consideration of preventing PA damage. In an embodiment, referring to Table 3, the electronic device 101 can refer to the RGI values up to codeword 53 when setting the transmission power, can satisfy the FCC standard without power droop occurring, and can also prevent a decrease in UL coverage. In an embodiment, if the electronic device 101 sets the transmission power of the RF signal based on the second APT table, power droop occurring in the antenna module (e.g., the antenna module 340) can not occur. In an embodiment, in an initial access procedure corresponding to an event of any one of a voice call service, a band switch, or a channel switch, the electronic device 101 can identify power droop of the antenna module. For example, the communication processor (e.g., the communication processor 310) can identify that a feedback reception (FBRx) error has occurred based on identifying that a feedback reception (FBRx) signal transmitted to a feedback circuit (e.g., the feedback circuit 325). For example, the communication processor 310 can identify that power droop of about 1.7 dB has occurred at the antenna module 340 end based on identifying that an error code (ft_err code) included in the feedback reception signal is 17. In an embodiment, since the digital gain and the analog gain are sequentially changed when operating in the TxFE backoff mode, power droop can occur. For example, the communication processor 310 can back off the digital gain with a value set based on the first APT table. The power of the RF signal output by the RFIC (e.g., the RFIC 320) can be reduced by the amount of backoff of the digital gain. The power of the RF signal amplified by the RFFE (e.g., the RFFE 330) can be reduced due to the backoff of the digital gain. The communication processor 310 can identify that the FBRx error occurs in proportion to the amount of backoff of the digital gain based on the feedback reception signal transmitted to the RFIC 320 through the coupler (e.g., the coupler 337). The communication processor 310 can compensate for the FBRx error based on increasing the analog gain of the RFIC 320. For example, the communication processor 310 can increase the value of the RGI codeword. If the FBRx error occurs, when performing a random access channel (RACH) operation between the electronic device 101 and a base station, RACH failure or retry can be repeated.

[0080] The electronic device 101 according to an embodiment can simultaneously change the magnitude of the digital gain and the analog gain based on the second APT table additionally stored in the RF calibration process. The electronic device 101 can relatively reduce the risk of FBRx error due to power drop of the antenna module based on simultaneously reducing the digital gain and increasing the analog gain.

[0081] In an embodiment, based on identifying that the first parameter associated with the transmission of the RF signal satisfies the first condition (operation 407 - Yes), the electronic device 101 can set the first power as the transmission power of the RF signal associated with the first event based on the first APT table in operation 405.

[0082] Figure 5 FIG. 1 is a block diagram illustrating an electronic device according to an embodiment.

[0083] In an embodiment, the first RFFE (e.g., the first RFFE 330) can be designed to process LTE signals (e.g., RF signals corresponding to a B30 band) of a middle band (MB) and a high band (HB). Since the first RFFE has been described with reference to FIG. 3, a description of configurations overlapping with the configurations of the first RFFE will not be repeated in Figure 3 Since the RF component is described in detail, a description of configurations overlapping with the configurations of the RF component will not be repeated in Figure 5 Figure 3 FIG. 1 is a block diagram illustrating an electronic device according to an embodiment. Figure 5 ​For example, the first RFFE 330 can be implemented in the form of a power amplitude module including duplexer (PAMid) 510. In an embodiment, the PAMid 510 can include a first PA 511 and a second PA 513. In an embodiment, the first PA 511 can amplify an RF signal corresponding to a second frequency band. For example, the first PA 511 can amplify an RF signal associated with a GSM network. The RF signal amplified by the first PA 511 can be transmitted to the first antenna module 531 through any one of the first antenna switching module (ASM) 517, one or more low-pass filters (LPFs) 515a, 515b, and a first duplexer 533. The RF signal corresponding to the second frequency band can be transmitted by the first antenna module 531. In an embodiment, the second PA 513 can amplify an RF signal corresponding to a first frequency band. The RF signal amplified by the second PA 513 can pass through a second duplexer 521, a second ASM 519, and the first duplexer 533 to be transmitted to the first antenna module 531. The RF signal amplified by the second PA 513, corresponding to the first frequency band, can be transmitted to the air through the first antenna module 531. For example, the first frequency band can be a B30 band, and the first frequency band is not limited to the above example. The duplexer 521 corresponding to the B30 band can be disposed outside the PAMid 510. For example, the duplexer 521 corresponding to the B30 band can be disposed on a main PCB of the electronic device 101. In an embodiment, if the duplexer 521 is disposed outside the PAMid 510, an insertion loss (IL) can increase, and a front-end (FE) loss of the RF signal corresponding to the B30 band can increase. For example, because the FE loss of the RF signal increases due to an additional SPDT switch (not shown) and PCB wiring (not shown) that are additionally required in the process of disposing the duplexer 521, a transmission power space of the RF signal corresponding to the B30 band that the electronic device 101 can output can decrease. For example, the electronic device 101 can increase an analog gain of the PA (or an RGI value corresponding to the PA) in order to output an RF signal of the same target power. If the electronic device 101 excessively increases the analog gain of the PA, a band edge performance can be deteriorated due to the above-described spur. If the electronic device 101 operates in a TxFE back-off mode for reduction of the spur, a situation in which an RF signal satisfying a target power cannot be output can occur.

[0084] In an embodiment, the electronic device 101 can set a transmission power of the RF signal corresponding to the first frequency band based on the second APT table to be based onFigure 4 Operation 409 in the process ensures band edge performance. For example, electronic device 101 can simultaneously reduce the digital gain of communication processor 310 and increase the analog gain of RFIC 320 based on a second APT table. Electronic device 101 can transmit an RF signal that meets the target power via second antenna module 533 according to the maximum transmit power of the RF signal corresponding to the B30 band set based on the second APT table.

[0085] Figure 6 A flowchart 600 is shown to describe an operation method of an electronic device according to an embodiment. For the operation method of the electronic device 101, in... Figure 6 The characters can be repeated. Figure 4 The descriptions overlap.

[0086] According to an embodiment, in operation 601, electronic device 101 (e.g., at least one of processor 120, first communication processor 212, second communication processor 214, integrated communication processor 260, or communication processor 310) can recognize a voice call event. In an embodiment, electronic device 101 can select a cell capable of communicating with it based on performing a cell search. For example, electronic device 101 can perform cell selection based on receiving a synchronization signal with a decodeable RSSI level from an LTE communication network.

[0087] In an embodiment, during operation 603, based on the identification of a voice call event, electronic device 101 can identify whether the frequency band associated with the voice call event is a first frequency band. Electronic device 101 can identify whether the frequency band corresponding to the selected cell is a first frequency band with a relatively small backoff margin. The first frequency band may be, for example, the B30 band or the B48 band, and is not limited to the examples described above. Electronic device 101 can identify, in a first APT table and a second APT table, an APT table to be referenced for setting the transmit power of the RF signal, based on whether the frequency band associated with the voice call event is the first frequency band.

[0088] In one embodiment, based on the identification that the frequency band associated with the voice call event is not the first frequency band (operation 603-No), in operation 605, the electronic device 101 may set the first power to the transmission power of the RF signal associated with the voice call event based on a first APT table. The electronic device 101 may, for example, set the power to the transmission power of the RF signal associated with the voice call event according to the first APT table stored during RF calibration, based on the identification that the frequency band associated with the voice call event is a second frequency band with a relatively large transmission power space.

[0089] In an embodiment, based on the identification that the frequency band associated with the voice call event is a first frequency band (operation 603 - Yes), in operation 607, the electronic device 101 can identify whether a first parameter associated with the transmission of the RF signal satisfies a first condition. In an embodiment, the first condition may include the first parameter matching at least one of a bandwidth, modulation scheme, or number of RBs set in association with network communication based on the edge frequencies of the first frequency band. For example, the first condition may be a case where a portion of the RBs are allocated in a 10 MHz bandwidth and the modulation scheme is 16-QAM.

[0090] In an embodiment, based on the identification that a first parameter related to the transmission of the RF signal does not meet a first condition (operation 607-No), in operation 609, electronic device 101 can change the amplitude of the baseband signal transmitted to the RF circuit based on a second APT table, setting the second power to the transmission power of the RF signal related to the voice call event. In an embodiment, based on the identification of the first parameter, electronic device 101 can identify that all RBs are allocated in the 10 MHz bandwidth and the modulation scheme is QPSK. Electronic device 101 can operate in TxFE fallback mode based on the identification that the first parameter does not meet the first condition. Electronic device 101 can set the transmission power of the RF signal corresponding to B30 based on the second APT table additionally stored during RF calibration to ensure band edge performance.

[0091] In one embodiment, based on the identification that a first parameter associated with the transmission of the RF signal satisfies a first condition (operation 607 - Yes), in operation 605, electronic device 101 can set a first power to the transmission power of the RF signal associated with the voice call event based on a first APT table. In another embodiment, based on the identification of the first parameter, electronic device 101 can identify that a portion of the RB is allocated in a 10 MHz bandwidth and the modulation scheme is 16-QAM. Electronic device 101 can set the transmission power of the RF signal associated with the voice call event based on the first APT table, based on the identification that the first parameter satisfies the first condition.

[0092] In one embodiment, during operation 611, electronic device 101 can perform a voice call connection. In another embodiment, electronic device 101 can perform a voice call connection by changing the amplitude of the baseband signal transmitted to the RF circuit based on a second APT table, and by setting a second power to the transmission power of the RF signal associated with the voice call event. In another embodiment, electronic device 101 can perform a voice call connection by setting a first power to the transmission power of the RF signal associated with the voice call event according to a first APT table. In yet another embodiment, electronic device 101 can establish an RRC connection with the communication network associated with the voice call service based on RACH operation.

[0093] Figure 7 A flowchart 700 for describing an operation method of an electronic device according to an embodiment is shown. For the operation method of the electronic device 101, in Figure 7 the description overlapping with the description of Figure 4 may not be repeated.

[0094] According to an embodiment, in operation 701, the electronic device 101 (e.g., at least one of the processor 120, the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the communication processor 310) can identify a handover event. In an embodiment, the electronic device 101 can search for a neighboring cell in an RRC idle state. The electronic device 101 can attempt cell reselection based on identifying that the strength of a signal received from the neighboring cell is good.

[0095] In an embodiment, in operation 703, based on identifying the handover event, the electronic device 101 can identify whether a frequency band associated with the handover event is a first frequency band. The electronic device 101 can identify whether a frequency band corresponding to a cell being reselected is a first frequency band in which a backoff margin is relatively small. The first frequency band can be, for example, a B30 frequency band or a B48 frequency band, and the first frequency band is not limited to the above-described example. The electronic device 101 can identify, based on identifying whether the frequency band associated with the handover event is the first frequency band, an APT table to be referred to for setting the transmission power of an RF signal among the first APT table and the second APT table.

[0096] In an embodiment, based on identifying that the frequency band associated with the handover event is not the first frequency band (operation 703 - No), in operation 705, the electronic device 101 can set the first power as the transmission power of the RF signal associated with the handover event based on the first APT table. The electronic device 101 can, for example, based on identifying that the frequency band associated with the handover event is a second frequency band in which the transmission power space is relatively large, set the power as the transmission power of the RF signal associated with the handover event according to the first APT table stored in the RF calibration procedure.

[0097] In an embodiment, based on identifying that the frequency band associated with the handover event is the first frequency band (operation 703 - Yes), in operation 707, the electronic device 101 can identify whether a first parameter associated with the transmission of the RF signal satisfies a first condition. In an embodiment, the first condition can include the first parameter matching at least one of a bandwidth, a modulation scheme, or the number of RBs set in association with network communication based on an edge frequency of the first frequency band. For example, the first condition can be a case where a partial RB is allocated in a 10 MHz bandwidth and a modulation scheme is 16-QAM.

[0098] In an embodiment, based on identifying that the first parameter associated with the transmission of the RF signal does not satisfy the first condition (operation 707 - No), in operation 709, the electronic device 101 can set the second power as the transmission power of the RF signal associated with the switching event by changing the amplitude of the baseband signal transferred to the RF circuit based on the second APT table. In an embodiment, based on identifying the first parameter, the electronic device 101 can identify that all RBs are allocated in the 10 MHz bandwidth and the modulation scheme is QPSK. The electronic device 101 can operate in the TxFE back-off mode based on identifying that the first parameter does not satisfy the first condition. The electronic device 101 can set the transmission power of the RF signal corresponding to B30 based on the second APT table stored additionally in the RF calibration procedure to secure the band edge performance.

[0099] In an embodiment, based on identifying that the first parameter associated with the transmission of the RF signal satisfies the first condition (operation 707 - Yes), in operation 705, the electronic device 101 can set the first power as the transmission power of the RF signal associated with the switching event based on the first APT table. In an embodiment, based on identifying the first parameter, the electronic device 101 can identify that part of the RBs are allocated in the 10 MHz bandwidth and the modulation scheme is 16-QAM. The electronic device 101 can set the transmission power of the RF signal associated with the switching event based on the first APT table based on identifying that the first parameter satisfies the first condition.

[0100] In an embodiment, in operation 711, the electronic device 101 can perform the switching. In an embodiment, the electronic device 101 can perform the switching based on setting the second power as the transmission power of the RF signal associated with the switching event by changing the amplitude of the baseband signal transferred to the RF circuit based on the second APT table. In an embodiment, the electronic device 101 can perform the switching based on setting the first power as the transmission power of the RF signal associated with the switching event according to the first APT table. In an embodiment, the electronic device 101 can establish an RRC connection with a communication network managing a neighboring cell based on performing a cell reselection operation.

[0101] Figure 8 A flowchart 800 for describing an operation method of an electronic device according to an embodiment is illustrated. For the operation method of the electronic device 101, descriptions overlapping with those of Figure 8 may not be repeated. Figure 4

[0102] ​According to an embodiment, in operation 801, the electronic device 101 (e.g., at least one of the processor 120, the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the communication processor 310) can identify a handover event while a voice call is connected based on a second frequency band. In an embodiment, the electronic device 101 can attempt cell reselection to another cell having a relatively strong received signal strength in an RRC connected state based on the second frequency band.

[0103] In an embodiment, in operation 803, based on identifying the handover event, the electronic device 101 can identify whether a frequency band associated with the handover event is a first frequency band. The electronic device 101 can identify whether a frequency band corresponding to a cell being reselected is the first frequency band having a relatively small backoff margin. The first frequency band can be, for example, a B30 frequency band or a B48 frequency band, and the first frequency band is not limited to the above-described example. The electronic device 101 can identify an APT table to be referred to for setting the transmission power of an RF signal, among the first APT table and the second APT table, based on identifying whether the frequency band associated with the handover event is the first frequency band.

[0104] In an embodiment, based on identifying that the frequency band associated with the handover event is not the first frequency band (operation 803 - No), in operation 805, the electronic device 101 can set the first power as the transmission power of the RF signal associated with the handover event based on the first APT table. The electronic device 101 can, for example, based on identifying that the frequency band associated with the handover event is the second frequency band having a relatively large transmission power space, set the power as the transmission power of the RF signal associated with the handover event according to the first APT table stored in the RF calibration procedure.

[0105] In an embodiment, based on identifying that the frequency band associated with the handover event is the first frequency band (operation 803 - Yes), in operation 807, the electronic device 101 can identify whether a first parameter associated with the transmission of the RF signal satisfies a first condition. In an embodiment, the first condition can include the first parameter matching at least one of a bandwidth, a modulation scheme, or the number of RBs set in association with network communication based on an edge frequency of the first frequency band. For example, the first condition can be a case where a partial RB is allocated in a 10 MHz bandwidth and a modulation scheme is 16-QAM.

[0106] In an embodiment, based on identifying that the first parameter associated with the transmission of the RF signal does not satisfy the first condition (operation 807 - No), in operation 809, the electronic device 101 can set the second power as the transmission power of the RF signal associated with the switching event by changing the amplitude of the baseband signal transferred to the RF circuit based on the second APT table. In an embodiment, based on identifying the first parameter, the electronic device 101 can identify that all RBs are allocated in the 10 MHz bandwidth and the modulation scheme is QPSK. The electronic device 101 can operate in the TxFE back-off mode based on identifying that the first parameter does not satisfy the first condition. The electronic device 101 can set the transmission power of the RF signal corresponding to B30 based on the second APT table stored additionally in the RF calibration procedure to secure the band edge performance.

[0107] In an embodiment, based on identifying that the first parameter associated with the transmission of the RF signal satisfies the first condition (operation 807 - Yes), in operation 805, the electronic device 101 can set the first power as the transmission power of the RF signal associated with the switching event based on the first APT table. In an embodiment, based on identifying the first parameter, the electronic device 101 can identify that part of the RBs are allocated in the 10 MHz bandwidth and the modulation scheme is 16-QAM. The electronic device 101 can set the transmission power of the RF signal associated with the switching event based on the first APT table based on identifying that the first parameter satisfies the first condition.

[0108] In an embodiment, in operation 811, the electronic device 101 can perform the switching. In an embodiment, the electronic device 101 can perform the switching based on setting the second power as the transmission power of the RF signal associated with the switching event by changing the amplitude of the baseband signal transferred to the RF circuit based on the second APT table. In an embodiment, the electronic device 101 can perform the switching based on setting the first power as the transmission power of the RF signal associated with the switching event according to the first APT table. In an embodiment, the electronic device 101 can continuously provide the voice call service based on performing the switching.

[0109] Figure 9 A flowchart 900 for describing an operation method of an electronic device according to an embodiment is illustrated.

[0110] According to an embodiment, in operation 901, the electronic device 101 (e.g., at least one of the processor 120, the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the communication processor 310) can store a first APT table based on a power scan. In an embodiment, the electronic device 101 can generate and store the APT table in an RF calibration procedure. In an embodiment, the electronic device 101 can generate the first APT table corresponding to each of one or more frequency bands that the electronic device 101 can support. For example, the electronic device 101 can obtain a digital gain and / or an analog gain based on performing a power scan from a lower limit of a transmission power to an upper limit of the transmission power. The electronic device 101 can generate a mapping table based on obtaining the digital gain and / or the analog gain corresponding to each transmission power. In an embodiment, the electronic device 101 can generate the first APT table including a gain value corresponding to a transmission power of an RF signal based on the power scan. The electronic device 101 can store the generated first APT table in a storage (e.g., the memory 130).

[0111] In an embodiment, based on storing the first APT table, in operation 903, the electronic device 101 can identify whether the calibration frequency band is a first frequency band. The electronic device 101 can identify whether the calibration frequency band is the first frequency band in which a backoff margin is relatively small. The first frequency band can be, for example, a B30 frequency band or a B48 frequency band, and the first frequency band is not limited to the above-described example. The electronic device 101 can identify whether to additionally store a second APT table based on identifying whether the calibration frequency band is the first frequency band. In an embodiment, the electronic device 101 can not additionally store the second APT table based on identifying that the calibration frequency band is not the first frequency band (operation 903 - No).

[0112] In an embodiment, based on identifying that the calibration frequency band is the first frequency band (operation - Yes), in operation 905, the electronic device 101 can identify a maximum transmission power of an RF signal corresponding to the first frequency band.

[0113] In an embodiment, in operation 907, based on confirming the maximum transmission power of the RF signal corresponding to the first frequency band, the electronic device 101 can identify whether a difference between the identified maximum transmission power and a target power exceeds a first value. The electronic device 101 can identify, for example, whether the difference between the identified maximum transmission power and the target power is 3 dB or more, and the first value is not limited to the above-described example.

[0114] In an embodiment, based on identifying that the difference between the identified maximum transmission power and the target power exceeds the first value (operation 907 - Yes), the electronic device 101 can set a second value as a fallback value in operation 909. In an embodiment, the second value can be the same value for a plurality of electronic devices that perform the calibration procedure. In an embodiment, the second value equal to or greater than the first value can be set as the fallback value of the transmission power.

[0115] In an embodiment, based on identifying that the difference between the identified maximum transmission power and the target power is less than or equal to the first value (operation 907 - No), the electronic device 101 can set a value obtained by subtracting the target power and a third value less than the first value from the maximum transmission power as the fallback value of the transmission power in operation 911. In an embodiment, the third value can be 1 dB, and the third value is not limited to the above example. In an embodiment, the fallback value set in operation 911 can be set differently for each set (or electronic device) in consideration of the end skew. The electronic device 101 can perform a TxFE fallback operation in consideration of the skew between electronic devices based on the fallback value set in the RF calibration process.

[0116] In an embodiment, based on setting the fallback value, the electronic device 101 can store a second APT table based on the power sweep in operation 913. In an embodiment, the electronic device 101 can generate a second APT table associated with the first frequency band including a gain value corresponding to the transmission power of the RF signal based on the power sweep. The electronic device 101 can store the second APT table.

[0117] According to an embodiment, an electronic device (101) can include a memory (130) storing instructions, at least one communication processor (120; 212; 214; 260; 310), and at least one RF circuit configured to process an RF signal based on a signal from the at least one communication processor (120; 212; 214; 260; 310). The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to identify whether a frequency band associated with a first event is a first frequency band based on identifying the first event. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to identify whether a first parameter associated with transmission of the RF signal satisfies a first condition based on identifying that the frequency band associated with the first event is the first frequency band. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to set a first power as a transmission power of the RF signal associated with the first event based on the first APT table based on identifying that the first parameter satisfies the first condition. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to set a second power as the transmission power of the RF signal associated with the first event by changing an amplitude of a baseband signal transmitted to the RF circuit based on a second APT table based on identifying that the first parameter does not satisfy the first condition.

[0118] In an embodiment, the first event can include a voice call event. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to perform a voice call connection based on setting the transmission power of the RF signal associated with the voice call event.

[0119] In an embodiment, the first event can include a handover event. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to perform a handover based on setting the transmission power of the RF signal associated with the handover event.

[0120] In an embodiment, the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to identify the handover event while a voice call is connected based on a second frequency band. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to provide a voice call service based on performing the handover.

[0121] In an embodiment, the first parameter can include at least one of a bandwidth, a modulation scheme, or a number of RBs associated with the network communication corresponding to the first event.

[0122] In an embodiment, the first condition can include the first condition including the first parameter matching at least one of a bandwidth, a modulation scheme, or a number of RBs set in association with the network communication based on the edge frequency of the first frequency band.

[0123] In an embodiment, the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to generate a second APT table associated with the first frequency band including a gain value corresponding to a transmission power of an RF signal based on the power scan. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to store the second APT table.

[0124] In an embodiment, the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to identify a maximum transmission power of the RF signal corresponding to the first frequency band based on identifying that the calibration frequency band is the first frequency band. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to identify whether a difference between the identified maximum transmission power and a target power exceeds a first value.

[0125] In an embodiment, the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to set a second value equal to or greater than the first value as a back-off value for the transmission power based on identifying that the difference between the identified maximum transmission power and the target power exceeds the first value. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to set a value obtained by subtracting the target power and a third value less than the first value from the maximum transmission power as the back-off value for the transmission power based on identifying that the difference between the identified maximum transmission power and the target power is less than or equal to the first value.

[0126] In an embodiment, the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to generate a first APT table including a gain value corresponding to a transmission power of an RF signal based on a power scan. The instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), can cause the electronic device (101) to store the first APT table.

[0127] In an embodiment, the method of operating the electronic device (101) can include identifying whether a frequency band associated with the first event is the first frequency band, based on identifying the first event. The method of operating the electronic device (101) can include identifying whether a first parameter associated with the transmission of the RF signal satisfies a first condition, based on identifying that the frequency band associated with the first event is the first frequency band. The method of operating the electronic device (101) can include setting a first power as a transmission power of the RF signal associated with the first event, based on the first APT table, based on identifying that the first parameter satisfies the first condition. The method of operating the electronic device (101) can include setting a second power as the transmission power of the RF signal associated with the first event, by changing an amplitude of a baseband signal transmitted to the RF circuit based on a second APT table, based on identifying that the first parameter does not satisfy the first condition.

[0128] In an embodiment, the first event can include a voice call event. The method of operating the electronic device (101) can further include performing a voice call connection, based on setting the transmission power of the RF signal associated with the voice call event.

[0129] In an embodiment, the first event can include a handover event. The method of operating the electronic device (101) can further include performing a handover, based on setting the transmission power of the RF signal associated with the handover event.

[0130] In an embodiment, the method of operating the electronic device (101) can further include identifying a handover event while a voice call is connected based on a second frequency band. The method of operating the electronic device (101) can further include providing a voice call service, based on performing the handover.

[0131] In an embodiment, in the method of operating the electronic device (101), the first parameter can include at least one of a bandwidth, a modulation scheme, or a number of RBs associated with network communication corresponding to the first event.

[0132] In an embodiment, in the method of operating the electronic device (101), the first condition can include the first condition including the first parameter matching at least one of a bandwidth, a modulation scheme, or a number of RBs set in association with network communication based on an edge frequency of the first frequency band.

[0133] In an embodiment, the method of operating the electronic device (101) can further include generating a second APT table associated with the first frequency band including a gain value corresponding to a transmission power of the RF signal, based on a power scan. The method of operating the electronic device (101) can further include storing the second APT table.

[0134] In an embodiment, the method of operating the electronic device (101) can further include identifying a maximum transmission power of the RF signal corresponding to the first frequency band, based on identifying that the calibration frequency band is the first frequency band. The method of operating the electronic device (101) can further include identifying whether a difference between the identified maximum transmission power and the target power exceeds a first value.

[0135] In an embodiment, the method of operating the electronic device (101) can further include setting a second value equal to or greater than the first value as a back-off value of the transmission power, based on identifying that the difference between the identified maximum transmission power and the target power exceeds the first value. The method of operating the electronic device (101) can further include setting a value obtained by subtracting the target power and a third value less than the first value from the maximum transmission power as the back-off value of the transmission power, based on identifying that the difference between the identified maximum transmission power and the target power is less than or equal to the first value.

[0136] In an embodiment, the method of operating the electronic device (101) can further include generating a first APT table including a gain value corresponding to the transmission power of the RF signal, based on the power scan. The method of operating the electronic device (101) can further include storing the first APT table.

[0137] The electronic device according to an embodiment can be one of various types of electronic devices. The electronic device can include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. According to an embodiment of the disclosure, the electronic device is not limited to those described above.

[0138] It should be understood that the embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments and include various changes, equivalents or replacements for the corresponding technical features. For the description of the drawings, like reference numerals can be used to refer to like or similar elements. It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. As used herein, each of the phrases such as “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 all possible combinations of the items listed in the corresponding one of the phrases. As used herein, the terms such as “1st” and “2nd,” or “first” and “second” can be used to simply distinguish a corresponding component from another, and do not limit the components in other aspects (e.g., importance or order). It is to be understood that if an element (for example, a first element) is referred to as being “operatively or communicatively connected” to or with another element (for example, a second element), or if the first element is referred to as being “connected” to or with the second element, it means that the first element can be directly connected to the second element in a wired manner (for example, wiredly), wirelessly, or via a third element.

[0139] As used in connection with the embodiments of the present disclosure, the term “module” can include a unit implemented in hardware, software, or firmware, and can interchangeably be used with other terms such as “logic,” “logic block,” “part,” or “circuitry.” A module can be a single integral component, or a minimum unit or part thereof, adapted to perform one or more functions. For example, according to an embodiment, a module can be implemented in a form of an application-specific integrated circuit (ASIC).

[0140] The embodiments presented herein can be implemented as software (e.g., the program 140) including one or more instructions that are stored in a storage medium (e.g., the internal memory 136 or the external memory 138) that are readable by a machine (e.g., the electronic device 101). For example, a processor (e.g., the processor 120) of the machine (e.g., the electronic device 101) can invoke at least one of the one or more instructions stored in the storage medium, and execute it. This allows the machine to be operated to perform at least one function according to the at least one instruction invoked. The one or more instructions can include a code generated by a compiler or a code executable by an interpreter. The machine-readable storage medium can be provided in the form of a non-transitory storage medium. Wherein, the term "non-transitory" simply means the storage medium is a tangible device, and does not include a signal (e.g., an electromagnetic wave), but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium.

[0141] According to the embodiments, a method according to the embodiments of the disclosure can be included and provided in a computer program product. The computer program product can be traded as a product between a seller and a purchaser. The computer program product can be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or be distributed online via an application store (e.g., Google Play Store TM ). If the computer program product is distributed online, at least a portion of the computer program product can be temporarily generated in a storage medium such as a manufacturer's server, an application store's server, or a relay server, and then transmitted. The computer program product can include a plurality of programs to implement the embodiments of the disclosure.

[0142] According to an embodiment, each of the above-described components (e.g., a module or a program) can include a single entity or multiple entities, and some of the multiple entities can be separately arranged in different components. According to an embodiment, one or more of the above-described components or operations can be omitted, or one or more other components or operations can be added. The components (e.g., a module or a program) can be integrated into a single component, or can be distributed in a distributed manner. In this case, the integrated component can still perform one or more functions of each of the plurality of components in the same or similar manner as they are performed by a corresponding one of the plurality of components before the integration. According to an embodiment, operations performed by the module, the program, or another component can be carried out sequentially, in parallel, repeatedly, or in a heuristic method. Additionally or alternatively, one or more of the operations can be executed in a different order or omitted, or one or more other operations can be added.

Claims

1. An electronic device (101) comprising: a memory (130) storing instructions; at least one communication processor (120; 212; 214; 260；310）； and at least one RF circuit configured to process RF signals based on signals from the at least one communication processor (120; 212; 214; 260; 310), wherein the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), cause the electronic device (101) to: based on identifying a first event, identify whether a frequency band associated with the first event is a first frequency band, based on identifying that the frequency band associated with the first event is the first frequency band, identify whether a first parameter associated with transmission of an RF signal satisfies a first condition, based on identifying that the first parameter satisfies the first condition, set a first power as a transmission power of the RF signal associated with the first event based on a first APT table, and based on identifying that the first parameter does not satisfy the first condition, set a second power as the transmission power of the RF signal associated with the first event by changing an amplitude of a baseband signal transmitted to the RF circuit based on a second APT table.

2. The electronic device (101) according to claim 1, wherein the first event comprises a voice call event, and wherein the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), cause the electronic device (101) to: based on setting the transmission power of the RF signal associated with the voice call event, perform a voice call connection.

3. The electronic device (101) according to claim 1 or 2, wherein the first event comprises a handover event, and wherein the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), cause the electronic device (101) to: based on setting the transmission power of the RF signal associated with the handover event, perform a handover.

4. The electronic device (101) according to any one of claims 1 to 3, wherein the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), cause the electronic device (101) to: identify a handover event while a voice call is connected based on a second frequency band, and based on performing the handover, provide a voice call service.

5. The electronic device (101) according to any one of claims 1 to 4, wherein the first parameter comprises at least one of a bandwidth, a modulation scheme, or a number of RBs associated with network communication corresponding to the first event.

6. The electronic device (101) according to any one of claims 1 to 5, wherein the first condition comprises the first parameter matching at least one of a bandwidth, a modulation scheme, or a number of RBs set in association with network communication based on an edge frequency of the first frequency band.

7. The electronic device (101) according to any one of claims 1 to 6, wherein the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), cause the electronic device (101) to: based on a power sweep, generate a second APT table associated with the first frequency band including a gain value corresponding to the transmission power of the RF signal, and store the second APT table.

8. The electronic device (101) according to any one of claims 1 to 7, wherein the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), cause the electronic device (101) to: based on identifying that the calibration band is the first band, identifying a maximum transmission power of an RF signal corresponding to the first band, and identifying whether a difference between the identified maximum transmission power and a target power exceeds a first value.

9. The electronic device (101 ) according to any one of claims 1 to 8, wherein the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), cause the electronic device (101) to: based on identifying that the difference between the identified maximum transmission power and a target power exceeds the first value, set a second value equal to or greater than the first value as a back-off value of the transmission power, and based on identifying that the difference between the identified maximum transmission power and a target power is less than or equal to the first value, set a value obtained by subtracting the target power and a third value less than the first value from the maximum transmission power as the back-off value of the transmission power.

10. The electronic device (101 ) according to any one of claims 1 to 9, wherein the instructions, when executed by the at least one communication processor (120; 212; 214; 260; 310), cause the electronic device (101) to: based on a power scan, generate a first APT table including a gain value corresponding to the transmission power of the RF signal, and store the first APT table. 11.An operation method of an electronic device (101), the operation method comprising: based on identifying a first event, identifying whether a frequency band associated with the first event is a first frequency band; based on identifying that the frequency band associated with the first event is the first frequency band, identifying whether a first parameter associated with transmission of an RF signal satisfies a first condition; based on identifying that the first parameter satisfies the first condition, setting a first power as a transmission power of the RF signal associated with the first event based on a first APT table; and based on identifying that the first parameter does not satisfy the first condition, setting a second power as the transmission power of the RF signal associated with the first event by changing an amplitude of a baseband signal transmitted to the RF circuit based on a second APT table.

12. The method of operating an electronic device (101) as defined in claim 11, wherein, the first event includes a voice call event, and wherein the operation method further comprises: based on setting the transmission power of the RF signal associated with the voice call event, performing a voice call connection.

13. The method of operating an electronic device (101) according to claim 11 or 12, wherein, the first event includes a handover event, and wherein the operation method further comprises: based on setting the transmission power of the RF signal associated with the handover event, performing a handover. 14.The operation method of the electronic device (101) according to any one of claims 11 to 13, further comprising: while a voice call is connected based on a second frequency band, identifying a handover event; and based on performing the handover, providing a voice call service. 15.A storage medium storing computer-readable instructions, the instructions, when executed by a communication processor of an electronic device, causing the electronic device to perform at least one operation, wherein the at least one operation comprising: based on identifying a first event, identifying whether a frequency band associated with the first event is a first frequency band; based on identifying that the frequency band associated with the first event is the first frequency band, identifying whether a first parameter associated with transmission of RF signals satisfies a first condition; based on identifying that the first parameter satisfies the first condition, setting a first power as a transmission power of the RF signals associated with the first event based on a first APT table; and based on identifying that the first parameter does not satisfy the first condition, setting a second power as the transmission power of the RF signals associated with the first event by changing an amplitude of a baseband signal transmitted to the RF circuit based on a second APT table.

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