KR20230050623A - Electronic device including antenna - Google Patents

Abstract

In various embodiments, an electronic device comprises: a plurality of antennas; a processor; a wireless communication circuit configured to convert an RF signal received from an external device through at least one of the plurality of antennas into a data signal to output the data signal to the processor and convert the data signal received from the processor into an RF signal to transmit the RF signal to the external device through at least one of the plurality of antennas; an antenna tuning circuit configured to be electrically connected to the plurality of antennas to adjust the electrical lengths of the antennas; and a memory connected to the processor. In execution, the memory may store instructions to allow the processor to operate periodically measuring an error rate of the data signal received from the wireless communication circuit; an operation of recognizing that a decrease in reception sensitivity of the data signal received from the wireless communication circuit occurs periodically based on the measurement results; an operation of identifying an internal signal generated in the electronic device that caused the decrease in reception sensitivity in the electronic device based on the periodicity of the decrease in reception sensitivity; and a triggering operation of applying a tuning code designated to be applied to the antenna tuning circuit when the internal signal is generated to the antenna tuning circuit according to the generation period of the internal signal. In addition, various embodiments are possible. According to various embodiments, this electronic device can improve the quality of an RF signal received by the electronic device.

Description

Electronic device including an antenna {ELECTRONIC DEVICE INCLUDING ANTENNA}

Various embodiments relate to an electronic device including an antenna.

Various components mounted on a portable electronic device may act as a noise source that degrades the quality of an RF signal received through an antenna of the electronic device. For example, an RF signal periodically transmitted to the outside through an antenna of an electronic device, a signal periodically generated by a camera of an electronic device, or a signal periodically generated by a power management circuit (eg PMIC) of an electronic device may be an electronic device. It can act as internal noise that increases the error rate (eg, BLER) of the RF signal received by the device's antenna.

A filter for reducing noise may be added to the electronic device in order to lower the error of the RF signal. Alternatively, the antennas may be physically isolated.

In various embodiments, the electronic device may provide an electronic device implemented to increase the quality of an RF signal received by the electronic device.

The technical problem to be achieved in the present disclosure is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

In various embodiments, an electronic device may include a plurality of antennas; processor; An RF signal received from an external device through at least one of the plurality of antennas is converted into a data signal and output to the processor, and the data signal received from the processor is converted into an RF signal and converted into at least one of the plurality of antennas. a wireless communication circuit configured to transmit to an external device via; an antenna tuning circuit electrically connected to the plurality of antennas and configured to adjust electrical lengths of the antennas; and a memory coupled to the processor, wherein the memory, when executed, causes the processor to periodically measure an error rate of a data signal received from the wireless communication circuit, based on a result of the measurement, the wireless communication An operation of recognizing that reception sensitivity degradation of a data signal received from a circuit occurs periodically, and identifying an internal signal generated in the electronic device that causes the reception sensitivity degradation in the electronic device based on the periodicity of the reception sensitivity degradation. and a triggering operation of applying a tuning code designated to be applied to the antenna tuning circuit when the internal signal is generated to the antenna tuning circuit according to a generation period of the internal signal.

In various embodiments, an electronic device may include a plurality of antennas; processor; An RF signal received from an external device through at least one of the plurality of antennas is converted into a data signal and output to the processor, and the data signal received from the processor is converted into an RF signal and converted into at least one of the plurality of antennas. a wireless communication circuit configured to transmit to an external device via; a memory coupled to the processor, wherein the memory, when executed, causes the processor to periodically measure an error rate of a data signal received from the wireless communication circuit, based on a result of the measurement, the wireless communication circuit Recognizing that the reception sensitivity degradation of the data signal received from It may store instructions for performing an operation, an operation of identifying a generator that generates the internal signal causing the reception sensitivity degradation, and an operation of adjusting an output of the generator.

According to various embodiments, the electronic device may improve the quality of the RF signal received by the electronic device. In addition to this, various effects identified directly or indirectly through this document may be provided.

1 is a block diagram of an electronic device in a network environment, according to various embodiments.
2 is a block diagram of an electronic device for supporting legacy network communication and 5G network communication according to various embodiments.
3A is an exploded perspective view of an electronic device according to an exemplary embodiment; 3B is a diagram illustrating antennas disposed on a rear surface of an electronic device.
4 is a block diagram of an electronic device according to an exemplary embodiment.
5 is a diagram illustrating a resource allocation unit in cellular communication.
6A and 6B are diagrams for explaining an example of antenna tuning for improving reception sensitivity.
7A and 7B are flowcharts for describing an operation of an electronic device according to an exemplary embodiment.

1 is a block diagram of an electronic device 101 within a network environment 100, according to various embodiments. Referring to FIG. 1 , in a network environment 100, an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It may communicate with at least one of the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or the antenna module 197 may be included. In some embodiments, in the electronic device 101, at least one of these components (eg, the connection terminal 178) may be omitted or one or more other components may be added. In some embodiments, some of these components (eg, sensor module 176, camera module 180, or antenna module 197) are integrated into a single component (eg, display module 160). It can be.

The processor 120, for example, executes software (eg, the program 140) to cause at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or calculations. According to one embodiment, as at least part of data processing or operation, processor 120 transfers instructions or data received from other components (e.g., sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 . According to one embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit ( NPU: neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, when the electronic device 101 includes the main processor 121 and the auxiliary processor 123, the auxiliary processor 123 may use less power than the main processor 121 or be set to be specialized for a designated function. can The secondary processor 123 may be implemented separately from or as part of the main processor 121 .

The secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to one embodiment, the auxiliary processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of other functionally related components (eg, the camera module 180 or the communication module 190). there is. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself where the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited. The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples. The artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware structures.

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

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

The input module 150 may receive a command or data to be used by a component (eg, the processor 120) of the electronic device 101 from the outside of the electronic device 101 (eg, a user). The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output sound signals to the outside of the electronic device 101 . The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. A receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display module 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display module 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment, the display module 160 may include a touch sensor configured to detect a touch or a pressure sensor configured to measure the intensity of force generated by the touch.

The audio module 170 may convert sound into an electrical signal or vice versa. According to an embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a bio sensor, It may include a temperature sensor, humidity sensor, or light sensor.

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

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

The haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

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

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). Establishment and communication through the established communication channel may be supported. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 may be a wireless communication module 192 (eg, 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 (eg, a : a local area network (LAN) communication module or a power line communication module). Among these communication modules, a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a telecommunications network such as a computer network (eg, a LAN or a WAN). These various types of communication modules may be integrated as one component (eg, a single chip) or implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199. The electronic device 101 may be identified or authenticated.

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

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

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, a bottom surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, array antennas) disposed on or adjacent to a second surface (eg, a top surface or a side surface) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or part of operations executed in the electronic device 101 may be executed in one or more external electronic devices among the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead of executing the function or service by itself. Alternatively or additionally, one or more external electronic devices may be requested to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 101 . The electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed. To this end, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an internet of things (IoT) device. Server 108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 104 or server 108 may be included in the second network 199 . The electronic device 101 may be applied to intelligent services (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

2 is a block diagram 200 of an electronic device 101 for supporting legacy network communication and 5G network communication, according to various embodiments. Referring to FIG. 2, the electronic device 101 includes a communication processor 210, a first radio frequency integrated circuit (RFIC) 222, a second RFIC 224, a third RFIC 226, and 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, and a third antenna module 246. there is. The electronic device 101 may further include a processor (eg, an application processor) 120 and a memory 130 . The communication processor 210 may include a first communication processor 212 and a second communication processor 214 . The network 199 may include a first network 292 and a second network 294 . According to another embodiment, the electronic device 101 may further include at least one of the components shown in FIG. 1, and the network 199 may further include at least one other network. According to one embodiment, the first RFIC 222, the second RFIC 224, the fourth RFIC 228, the first RFFE 232, and the second RFFE 234 are at least one of the wireless communication module 192. can form part of it. The first antenna module 242 , the second antenna module 244 , and the third antenna module 246 may form at least a portion of the antenna module 197 of FIG. 1 . According to another embodiment, the fourth RFIC 228 may be omitted or included as part of the third RFIC 226 .

The first communication processor 212 may establish a communication channel of a band to be used for wireless communication with the first network 292 and support legacy network communication through the established communication channel. According to various embodiments, the first network may be a legacy network including a second generation (2G), 3G, 4G, or long term evolution (LTE) network. The second communication processor 214 establishes a communication channel corresponding to a designated band (eg, about 6 GHz to about 60 GHz) among bands to be used for wireless communication with the second network 294, and 5G network communication through the established communication channel can support According to various embodiments, the second network 294 may be a 5G network defined by 3GPP. Additionally, according to one embodiment, the first communication processor 212 or the second communication processor 214 corresponds to another designated band (eg, about 6 GHz or less) among bands to be used for wireless communication with the second network 294. It is possible to support establishment of a communication channel and 5G network communication through the established communication channel. According to one embodiment, the first communication processor 212 and the second communication processor 214 may be implemented on a single chip or in a single package. According to various embodiments, the first communication processor 212 or the second communication processor 214 may be formed in a single chip or single package with the processor 120, coprocessor 123, or communication module 190. there is.

When transmitting, the first RFIC 222 uses the baseband signal (or data signal) generated by the first communication processor 212 for the first network 292 (eg, a legacy network). It can be converted into a radio frequency (RF) signal of about 700 MHz to about 3 GHz. In reception, an RF signal is obtained from a first network 292 (eg, a legacy network) via an antenna (eg, first antenna module 242), and via an RFFE (eg, first RFFE 232). It can be preprocessed. The first RFIC 222 may convert the preprocessed RF signal into a baseband signal to be processed by the first communication processor 212 .

When transmitting, the second RFIC 224 transfers the baseband signal generated by the first communication processor 212 or the second communication processor 214 to the second network 294 (eg, a 5G network). It can be converted into an RF signal (hereinafter referred to as a 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less). At reception, a 5G Sub6 RF signal is obtained from a second network 294 (eg, a 5G network) through an antenna (eg, the second antenna module 244), and an RFFE (eg, the second RFFE 234) It can be pre-treated through The second RFIC 224 may convert the preprocessed 5G Sub6 RF signal into a baseband signal to be processed by a corresponding communication processor among the first communication processor 212 and the second communication processor 214 .

The third RFIC 226 transmits the baseband signal generated by the second communication processor 214 to the RF of the 5G Above6 band (eg, about 6 GHz to about 60 GHz) to be used in the second network 294 (eg, a 5G network). signal (hereinafter referred to as 5G Above6 RF signal). Upon reception, the 5G Above6 RF signal may be obtained from the second network 294 (eg, 5G network) via an antenna (eg, antenna 248) and preprocessed through a third RFFE 236. The third RFIC 226 may convert the preprocessed 5G Above6 RF signal into a baseband signal to be processed by the second communication processor 214 . According to one embodiment, the third RFFE 236 may be formed as part of the third RFIC 226 .

The electronic device 101, according to one embodiment, may include a fourth RFIC 228 separately from or at least as part of the third RFIC 226. In this case, the fourth RFIC 228 converts the baseband signal generated by the second communication processor 214 into an RF signal (hereinafter referred to as an IF signal) of an intermediate frequency band (eg, about 9 GHz to about 11 GHz). After conversion, the IF signal may be transmitted to the third RFIC 226. The third RFIC 226 may convert the IF signal into a 5G Above6 RF signal. Upon reception, a 5G Above6 RF signal may be received from a second network 294 (eg, 5G network) via an antenna (eg, antenna 248) and converted to an IF signal by a third RFIC 226 . The fourth RFIC 228 may convert the IF signal into a baseband signal so that the second communication processor 214 can process it.

According to an example, the first RFIC 222 and the second RFIC 224 may be implemented as a single chip or at least part of a single package. According to one embodiment, the first RFFE 232 and the second RFFE 234 may be implemented as a single chip or at least part of a single package. According to one embodiment, at least one antenna module of the first antenna module 242 or the second antenna module 244 may be omitted or combined with another antenna module to process RF signals of a plurality of corresponding bands.

According to one embodiment, third RFIC 226 and antenna 248 may be disposed on the same substrate to form third antenna module 246 . For example, the wireless communication module 192 or processor 120 may be disposed on a first substrate (eg, main PCB). In this case, the third RFIC 226 is provided on a part (eg, lower surface) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is placed on another part (eg, upper surface). is disposed, the third antenna module 246 may be formed. By arranging the third RFIC 226 and the antenna 248 on the same substrate, it is possible to reduce the length of the transmission line therebetween. This, for example, can reduce loss (eg, attenuation) of a signal of a high frequency band (eg, about 6 GHz to about 60 GHz) used in 5G network communication by a transmission line. As a result, the electronic device 101 can improve the quality or speed of communication with the second network 294 (eg, 5G network).

According to one embodiment, the antenna 248 may be formed of an antenna array including a plurality of antenna elements that may be used for beamforming. In this case, the third RFIC 226 may include, for example, a plurality of phase shifters 238 corresponding to a plurality of antenna elements as a part of the third RFFE 236. During transmission, each of the plurality of phase converters 238 may convert the phase of a 5G Above6 RF signal to be transmitted to the outside of the electronic device 101 (eg, a base station of a 5G network) through a corresponding antenna element. . During reception, each of the plurality of phase converters 238 may convert the phase of the 5G Above6 RF signal received from the outside through the corresponding antenna element into the same or substantially the same phase. This enables transmission or reception through beamforming between the electronic device 101 and the outside.

The second network 294 (eg, 5G network) may operate independently of the first network 292 (eg, a legacy network) (eg, Stand-Alone (SA)) or may be connected to and operated (eg, a legacy network). Non-Stand Alone (NSA)). For example, a 5G network may include only an access network (eg, a 5G radio access network (RAN) or a next generation RAN (NG RAN)) and no core network (eg, a next generation core (NGC)). In this case, after accessing the access network of the 5G network, the electronic device 101 may access an external network (eg, the Internet) under the control of a core network (eg, evolved packed core (EPC)) of the legacy network. Protocol information for communication with the legacy network (eg LTE protocol information) or protocol information for communication with the 5G network (eg New Radio (NR) protocol information) is stored in the memory 230, and other parts (eg processor 120 , the first communications processor 212 , or the second communications processor 214 .

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "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 "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish a given component from other corresponding components, and may be used to refer to a given component in another aspect (eg, importance or order) is not limited. A (e.g., first) component is said to be "coupled" or "connected" to another (e.g., second) component, with or without the terms "functionally" or "communicatively." When mentioned, it means that the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logical blocks, parts, or circuits. can be used as A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. According to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document provide one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (eg, the program 140) including them. For example, a processor (eg, the processor 120 ) of a device (eg, the electronic device 101 ) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided by being included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. A computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store ^TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) online, directly between smart phones. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium such as a manufacturer's server, an application store server, or a relay server's memory.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single object or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

3A is an exploded perspective view of an electronic device 300 according to an embodiment. 3B is a diagram illustrating antennas disposed on a rear surface of the electronic device 300. Referring to FIG.

Referring to FIGS. 3A and 3B , the electronic device 300 (eg, the electronic device 101 of FIG. 1 ) includes a side bezel structure (or side frame) 310, a first support member (or a first support frame) 311, a front plate (or front cover) 320, a display 330 (eg, the display module 160 of FIG. 1), at least one printed circuit board 340, 341, a battery ( 350) (eg, battery 189 of FIG. 1), second support member (or second support frame) 360, antenna module 370 (eg, antenna module 197 of FIG. 1), rear plate (or a rear cover) 380, and a camera module 390 (eg, the camera module 180 of FIG. 1). The front plate 320 may form a first surface (or front surface) of the electronic device 300 facing in the first direction, and the rear plate 380 may face the electronic device in a second direction opposite to the first direction. A second surface (or rear surface) of the 300 may be formed, and the side bezel structure 310 is made of a combination of metal (eg, SUS) and a polymer and surrounds the space between the first and second surfaces. can form a side. According to one embodiment, a structure including the first surface, the second surface, and the side surface may be referred to as a housing (or housing structure). In some embodiments, at least one of the components of the electronic device 300 (eg, the first support member 311 or the second support member 360) is omitted or other components are included in the electronic device 300. may additionally be included.

In one embodiment, the printed circuit boards 340 and 341 may be disposed to be supported by the first support member 311 and/or the second support member 360 . The first support member 311 may be coupled to the side bezel structure 310 . The first support member 311 may include a structure (eg, metal or polymer) extending from the side bezel structure 310 . The first support member 311 may be formed of, for example, metal and/or non-metal materials (eg, polymer). The display 330 may be coupled to one surface of the second support member 360 and the printed circuit boards 340 and 341 may be coupled to the other surface. A processor 120 , a memory 130 , and/or an interface 177 may be mounted on the printed circuit boards 340 and 341 . According to one embodiment, the printed circuit boards 340 and 341 may include a main board 340 and a sub board 341 . The first supporting member 311 may include a main substrate supporting member 311a supporting the main substrate 340 and a sub substrate supporting member 311b supporting the sub substrate 341 . The processor 120 may include, for example, one or more of a central processing unit, an application processor, a graphic processing unit, an image signal processor, a sensor hub processor, or a communication processor. The memory 130 may include, for example, volatile memory or non-volatile memory.

In one embodiment, the battery 350 may be disposed to be supported by the first support member 311 and/or the second support member 360 . The battery 350 is a device for supplying power to at least one component of the electronic device 300, and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. . At least a portion of the battery 350 may be disposed on substantially the same plane as the printed circuit boards 340 and 341 , for example.

Referring to FIG. 3B , an antenna module 370 may be disposed on the side and rear of the electronic device 300 . When viewed from the rear as shown in FIG. 3B , the antenna module 370 includes the lower antennas (or main antennas) 371 disposed below the battery 350 and the camera module 390 above the battery 350. ) and may include upper antennas (or sub-antennas 372) arranged so as not to overlap.

Among the lower antennas 371, the first lower antenna 371a and the second lower antenna 371b may be disposed on the lower side (eg, referring to FIG. 3B, the side facing the -y axis direction). For example, the first lower antenna 371a and the second lower antenna 371b may include metal constituting a part of the lower side of the side bezel structure 310 . The third lower antenna 371c, the fourth lower antenna 371d, and the fifth lower antenna 371e may include a laser direct structuring (LDS) structure formed on the sub-substrate support member 311b using a laser. . At least one of the lower antennas 371 may be composed of a combination of metal and LDS structures.

The lower antennas 371 may transmit and receive RF signals of a frequency band designated to be used for cellular communication. For example, the first lower antenna 371a may be a transmit/receive antenna configured to transmit/receive RF signals of uplink bands and downlink bands of LTE bands 1, 3, 5, and 8. The second lower antenna 371b may be a receiving antenna configured to receive an RF signal of a downlink band of LTE B7 and an RF signal of 5G n78. The third lower antenna 371c may be a receiving antenna configured to receive an RF signal of a downlink band of LTE B7. The fourth lower antenna 371d may be a receiving antenna configured to receive RF signals of LTE B1 and B3 and RF signals of 5G n78. However, it is not limited to the above examples.

Among the upper antennas 372, the first upper antenna 372a, the second upper antenna 372b, and the third upper antenna 372c have an upper side (eg, referring to FIG. 3B, a side facing the +y-axis direction). ) can be placed. For example, the first upper antenna 372a, the second upper antenna 372b, and the third upper antenna 372c may include metal constituting a part of the upper side of the side bezel structure 310. The fourth upper antenna 372d is formed by metal constituting a part of the right side of the side bezel structure 310 (eg, referring to FIG. 3B, the side facing the -x-axis direction) and the main substrate support member 311a from the right side. An extended LDS structure may be included. The fifth upper antenna 372e and the sixth upper antenna 372f may include an LDS structure formed on the main substrate support member 311a. At least one of the upper antennas 372 may be composed of a combination of metal and LDS structures.

At least one of the upper antennas 372 may transmit and receive an RF signal of a frequency band designated to be used for cellular communication. At least one of the upper antennas 372 may transmit and receive an RF signal of a frequency band designated to be used for wireless communication other than cellular. For example, the first upper antenna 372a may be a receiving antenna configured to receive RF signals of LTE B1, B3, B5, B7, and B8 and receive RF signals of L5 frequency of GPS. The second upper antenna 372b may be a transmit/receive antenna configured to receive RF signals of LTE B1, B3, and B7, receive RF signals of L1 frequency of GPS, and transmit and receive WiFi signals of 5 GHz band. The third upper antenna 372c may be a transmit/receive antenna configured to transmit and receive RF signals of 5G n78 and WiFi signals in the 5 GHz band. The fourth upper antenna 372d may be a transmit/receive antenna configured to transmit and receive an RF signal in a 2.4 GHz band designated for WiFi communication and an RF signal in a 5 GHz band designated for WiFi communication. The fifth upper antenna 372e may be a receiving antenna configured to receive an RF signal of 5G n78.

4 is a block diagram of an electronic device 300 according to an embodiment. 5 is a diagram illustrating a resource allocation unit in cellular communication. 6A and 6B are diagrams for explaining an example of antenna tuning for improving reception sensitivity. In FIGS. 6A and 6B , the horizontal axis represents the frequency and the vertical axis represents the power value. For example, the power value may refer to a power value of an RF signal to be output from the electronic device 300 to the outside (eg, a base station) through an antenna.

Referring to FIG. 4 , an electronic device 300 may include an antenna module 370, a wireless communication circuit 410, an antenna tuning circuit 420, a processor 430, and a memory 440.

The wireless communication circuit 410 (eg, the wireless communication module 192 of FIG. 2 ) converts the RF signal received from the external device through the antenna module 370 into a baseband signal (or data signal). and output to the processor 430, convert the baseband signal received from the processor 430 into an RF signal, and transmit it to an external device through the antenna module 370. The wireless communication circuitry 410 may include cellular communication circuitry 411 , WiFi communication circuitry 412 , and GPS receiving circuitry 413 .

Cellular communication circuitry 411 may be configured to process RF signals of a frequency band designated for use in cellular communication. The cellular communication circuit 411 includes at least one RFIC (eg, RFICs 222, 224, 226, and 228 of FIG. 2) and at least one RFFE (eg, RFFEs 232, 234, and 236 of FIG. 2). , and a plurality of conductive lines.

In the cellular communication circuit 411, at least one RFIC, at least one RFFE, and conductive lines may form a plurality of signal paths. For example, the signal path may include a conductive line connecting the processor 430 and the RFIC, a conductive line connecting the RFIC and the RFFE, and a conductive line connecting the RFFE and one of the antennas configured in the antenna module 370. there is. A plurality of signal lines having the same conductive lines through which the RF signal flows but having different paths in the RFFE may be configured in the cellular communication circuit 411 . For example, the first signal path may include a path through which the RF signal passes through a low noise amplifier (LNA) configured in the first RFFE 232 of FIG. 2 . The second signal path is substantially the same as the first signal path, but may include a path through which the RF signal passes through a power amplifier (PA) configured in the first RFFE 232 instead of the LNA.

A frequency band may be designated for each signal path formed in the cellular communication circuit 411 . For example, some of the signal paths may be designated as frequency bands used for LTE communication. Other portions of the signal paths may be assigned frequency bands used for 5G communication. A plurality of frequency bands may be assigned to one signal path. For example, a downlink band (approximately 869 to 894 MHz) of LTE B5 designated for use in a frequency division duplexing (FDD) communication scheme may be assigned to the first signal path. Downlink bands of B18, B19, and B26 declared in E-UTRA as overlapping bands partially overlapping with B5 may be assigned to the same first signal path.

The signal paths formed in the cellular communication circuit 411 may include a plurality of transmit paths (or transmit circuits) for transmitting RF signals to the outside and a plurality of receive paths (or receive circuits) for receiving RF signals from the outside. can For example, in the FDD communication scheme, an RF signal of an uplink band may be transmitted from the processor 430 to the outside of the electronic device 300 through the first transmission path. In the FDD communication scheme, an RF signal of a downlink band may be received by the processor 430 from outside the electronic device 300 through the second reception path. In a time division duplexing (TDD) communication scheme, an RF signal may be transmitted from the processor 430 to the outside of the electronic device 300 through the second transmission path. In the TDD communication method, an RF signal may be received from the outside of the electronic device 300 to the processor 430 through the second reception path.

The WiFi communication circuit 412 may be electrically connected to the processor 430 and electrically connected to at least one antenna among antennas configured in the antenna module 370 . When transmitting, the WiFi communication circuit 412 converts the baseband signal (or data signal) received from the processor 430 into an RF signal of a designated frequency band (eg, 2.4 GHz, 5 GHz) and processes the RF signal. (eg, amplification) may be output to antennas (eg, the second upper antenna 372b, the third upper antenna 372c, and the fourth upper antenna 372d). When receiving, the WiFi communication circuit 412 processes the RF signals received from the antennas (eg, the second upper antenna 372b, the third upper antenna 372c, and the fourth upper antenna 372d) (eg, low-noise amplification) and converting the RF signal into a baseband signal to be output to the processor 430.

The GPS receiving circuit 413 converts the RF signal received from the GPS through the antennas (eg, the first upper antenna 372a and the second upper antenna 372b) into a baseband signal and outputs the converted baseband signal to the processor 430. It can be.

The impedance of an antenna may affect transmission efficiency of an antenna for wireless communication. For example, due to an impedance difference between the antenna module 370 and the wireless communication circuit 410 (eg, RFFE in the wireless communication circuit 410), the RF signal passes through the antenna to the outside intact (eg, without power loss). ) may result in return loss that is reflected rather than radiated. The electronic device 300 may perform antenna tuning (eg, impedance matching) to increase transmission efficiency of the antenna. For example, antenna tuning involves adjusting, tuning or transforming the load impedance (e.g., the impedance between the antenna and the signal path connected to it) as close as possible to the characteristic impedance (e.g., 50 ohms). ) to reduce return loss.

The antenna tuning circuit 420 may be electrically connected to each of the antennas configured in the antenna module 370 to adjust an electrical length (eg, capacitance, inductance, or resistance) of each of the antennas. . For example, the antenna tuning circuit 420 may include a first tuning circuit located between the antenna module 370 and the wireless communication circuit 410 . The first tuning circuit may reduce return loss due to an impedance difference between the antenna and the signal path by adjusting an electrical length between the antenna and a signal path (eg, RFFE) connected thereto. The antenna tuning circuit 420 may include a second tuning circuit located between the antenna module 370 and the ground. The second tuning circuit may change the resonant frequency of the antenna by adjusting an electrical length between the antenna and the ground. By changing the resonant frequency, return loss due to a difference in impedance between the antenna and the signal path may be reduced.

The antenna tuning circuit 420, as a lumped element, may include at least one of a resistor, an inductor, or a capacitor. The antenna tuning circuit 420 may include a strip line as a distributed element. The antenna tuning circuit 420 may be an element configured inside the wireless communication circuit 410 .

The electronic device 300 measures an error rate (eg, signal to noise ratio (SNR), block error rate (BLER)) of a data signal received from an external device (eg, a base station) through the antenna module 370 can When the error rate is greater than or equal to a specified threshold value, it may be recognized that reception sensitivity degradation (eg, desense) of the RF signal has occurred. When this decrease in reception sensitivity has a certain periodicity (eg, a period in which the decrease in reception sensitivity occurs and/or a period in which the decrease in reception sensitivity lasts for one period), the internal periodicity generated in the electronic device 300 It can be assumed that it is caused by a signal (eg, noise in terms of an RF signal received by the electronic device 300 from the outside). For example, the internal signal is a sounding reference signal (SRS) periodically transmitted from the cellular communication circuit 411 to the base station through a transmission antenna, and a TDD periodically transmitted from the cellular communication circuit 410 to the base station through a transmission antenna. An RF signal of a communication method (eg, a physical uplink shared channel (PUSCH) signal, a physical uplink control channel (PUCCH) signal), an RF signal periodically transmitted from the WiFi communication circuit 412 to an external device through a transmission antenna, and Bluetooth communication An RF signal periodically transmitted from a circuit (not shown) to an external device through a transmission antenna, image data periodically generated according to a specified clock frequency in the camera module 390, or a PMIC (e.g., power management module 188) may include at least some of power signals periodically generated by pulse width modulation (PWM) or pulse frequency modulation (PFM). The generation source (or noise source) that generates the internal signal is a cellular communication circuit 411, a short-range wireless communication circuit (eg, WiFi communication circuit 412, a Bluetooth communication circuit), a camera module 390 , or at least one of PMIC.

The processor 430 (eg, the processor 120 of FIG. 1 or the communication processor 210 of FIG. 2 ) may store in the memory 440 a plurality of tuning codes for adjusting the load impedance to be close to the characteristic impedance. The processor 430) may determine that reception sensitivity degradation has occurred due to an internal signal having periodicity, when a decrease in reception sensitivity occurs when an RF signal is received, and the decrease in reception sensitivity has a periodicity. Based on this determination, the electronic device 300 may select a tuning code robust to an internal signal from among tuning codes and perform a triggering operation using the selected tuning code. Here, the triggering operation may refer to an operation of applying a tuning code to the antenna tuning circuit 420 according to a designated periodicity. For example, the electronic device 300 controls the antenna tuning circuit 420 using the tuning code for a period of time specified by the periodicity, thereby controlling the resonant frequency of the receiving antenna specified in the tuning code and/or the tuning code specified in the tuning code. The load impedance between the receiving antenna and the signal path through which the RF signal flows can be adjusted. Deterioration of reception sensitivity may be reduced or prevented by such a triggering operation. When the time designated by the periodicity elapses, the electronic long hand 300 controls the antenna tuning circuit 420 to restore the antenna tuning to its original state.

The processor 430 may store internal signal information 441 and tuning code information 442 in the memory 440 . The internal signal information 441 may include information representing a periodicity unique to each internal signal and information about a source generating the internal signal. The tuning code information 442 may include tuning codes designated for each antenna configured in the antenna module 370 . Among tuning codes, a tuning code designated in advance to be most robust to an internal signal may be included in the tuning code information 442 .

Based on the internal signal information 441, the processor 430 may identify an internal signal causing a decrease in reception sensitivity and a source generating the internal signal. In one embodiment, the processor 430 determines that the internal signal causing the signal error is identified when an internal signal having a periodicity matching the periodicity of the reception sensitivity degradation and its source are identified in the internal signal information 441. can do. As an example, upon reception of an RF signal of LTE B1, B3, or B5, the processor 430 may recognize that reception desensitization occurs periodically every 50 ms and reception desensitization lasts 10 ms per cycle. . The processor 300 may check the internal signal having the periodicity (eg, generation period (50 ms), duration (10 ms)) and its source from the internal signal information 441 . In another embodiment, the processor 430 may determine that the internal signal causing the signal error is identified when an internal signal having the same generation period as the reception sensitivity degradation period is identified in the internal signal information 441. may be

The processor 430 may adjust the output of the identified internal signal generating source. For example, when the internal signal generating source is the cellular communication circuit 411 or the short-range wireless communication circuit, the processor 430 reduces the decrease in reception sensitivity by lowering the transmission power of the RF signal output from the communication circuit to the antenna. can be prevented or prevented. When the internal signal generating source is the camera module 390 and/or the PMIC, the processor 430 performs data communication between the internal signal generating source and the processor 430 (eg, MIPI (mobile industry processor interface) when receiving an RF signal. ) can change the clock frequency for communication).

The processor 430 may check the tuning code designated to be applied to the antenna tuning circuit 420 when the identified internal signal is generated from the tuning code information 442 and perform a triggering operation using the checked tuning code. . For example, the processor 300 controls the antenna tuning circuit 420 using the identified tuning code to reduce or prevent a decrease in reception sensitivity when receiving an RF signal.

If information about an internal signal having the same periodicity as the periodicity of reception desensitization does not exist in the internal signal information 441, the processor 430 may determine that the internal signal that caused the signal error was not identified. . As another example, if the period is the same but the duration is different, the processor 430 may determine that the internal signal that caused the signal error was not identified. If the internal signal is not identified, the processor 430 may be robust to the unidentified internal signal and may perform an operation of finding a tuning code to be used for a triggering operation. For example, the processor 430 may check, in the cellular communication circuit 411, the frequency band of the RF signal in which the reception sensitivity is lowered. The processor 430 may check the reception antenna designated to receive the RF signal of the frequency band in the antenna module 370 . As an example, the frequency band of the RF signal in which the reception sensitivity is reduced is LTE B1, and the receiving antennas designated therein are the first lower antenna 371a, the fourth lower antenna 371d, the first upper antenna 372a, and a second upper antenna 372b. The processor 430 may check the tuning codes assigned to the identified receiving antennas from the tuning code information 442 . The processor 430 may sequentially apply the identified tuning codes to the antenna tuning circuit 420 to find a tuning code most robust to an internal signal when receiving an RF signal. The processor 430 may perform a triggering operation using the most robust tuning code found. For example, the processor may reduce or prevent a decrease in reception sensitivity when receiving an RF signal by controlling the antenna tuning circuit 420 using the searched tuning code.

Referring to FIG. 5 , in cellular communication, resources (eg, data transmitted and received between a base station and a terminal) may be divided into frames based on a time axis. One frame 510 is again divided into slot units, and one slot 520 may consist of a plurality of symbols (eg, 14 symbols according to LTE resource allocation). The triggering time may be set in units of frames 510 or slots 520 . Furthermore, the triggering time may be set in units of symbols smaller than the slot 520 . Here, the triggering time may mean a time during which the selected tuning code is applied to the antenna tuning circuit 420 . For example, the processor 430 controls the antenna tuning circuit 420 using the tuning code for a set triggering time when the internal signal is generated, thereby controlling the resonant frequency of the receiving antenna specified in the tuning code and/or the tuning code. It is possible to adjust the load impedance between the receiving antenna specified in and the signal path through which the RF signal flows. When the triggering time elapses, the processor 430 may control the antenna tuning circuit 420 to restore antenna tuning to its original state.

The processor 430 may perform MIMO using the cellular communication circuit 411 . When performing MIMO, the processor 430 may perform a triggering operation using a tuning code. Referring to an example with reference to Figures 6a and 6b, the cellular communication circuit 411, under the control of the processor 430, RF signals of LTE B1, B3, and B7 (hereinafter, for convenience of description, the first 1 RF signal) may be received from the base station through the antenna module 370. The cellular communication circuit 411 may transmit RF signals (hereinafter referred to as second RF signals) of LTE B5 and 5G N78 to the base station through the antenna module 370 under the control of the processor 430 . For example, the second RF signal may be an SRS transmitted periodically according to a schedule determined by the base station. While the second RF signal is transmitted to the base station, the second RF signal may act as an internal signal of the first RF signal. For example, the first frequency band 610 of the first RF signal overlaps the frequency band 620 of the second RF signal, and thus the error rate (eg, BLER) of the first RF signal may increase. The processor 430 may perform a triggering operation using the tuning code on the first RF signal while the second RF signal is being transmitted to the base station. Accordingly, the frequency band of the first RF signal may be adjusted to the third frequency band 630 . For example, the third frequency band 630 does not overlap with the center frequency of 5G N78 and the error rate of the first RF signal may be reduced or prevented.

7A and 7B are flowcharts for describing an operation of an electronic device according to an exemplary embodiment.

According to an embodiment, in operation 710, a processor (eg, the processor 430 of FIG. 4 ) performs a cellular communication circuit (eg, the cellular communication of FIG. 4 ) via an antenna module (eg, the antenna module 370 of FIG. 4 ). While the RF signal is being received by the circuit 411), an error rate (eg, BLER) of the data signal received from the cellular communication circuit 411 may be periodically measured.

According to an embodiment, in operation 720, the processor 430 may recognize that an error rate equal to or greater than a threshold is generated with a constant periodicity. For example, the recognized periodicity may include a period at which an error rate greater than or equal to a threshold value occurs. As another example, the recognized periodicity may include the duration of an error rate equal to or greater than a threshold value during one period, together with the period of occurrence. Here, the occurrence of an error rate exceeding the threshold value may mean that reception sensitivity of the RF signal is reduced due to external or internal factors of the electronic device 300 . The fact that the error rate has periodicity may mean that reception sensitivity degradation is periodically caused by an internal factor (internal signal) of the electronic device 300 .

According to an embodiment, in operation 730, the processor 430 determines whether an internal signal having the same periodicity as the periodicity of the perceived reception desensitization is identified, and the internal signal information stored in the memory 440 (eg, noise of FIG. 4 ). It can be determined based on information 441).

According to an embodiment, the processor 430 performs operations 741 and 742 independently or in parallel based on the internal signal having the same periodicity identified in the internal signal information 441 (operation 730-yes). can be done In operation 741, the processor 430 may adjust the output of the source generating the identified internal signal, and check the degree to which the error rate is reduced after the adjustment (hereinafter, a first reduction value for convenience of description). For example, when the internal signal generator is the cellular communication circuit 411, the processor 430 may lower the transmission power of the RF signal to be output to the antenna from the cellular communication circuit 411. In operation 742, the processor 430 checks the tuning code assigned to the identified internal signal from tuning code information (eg, the tuning code information 442 of FIG. 4) without adjusting the output of the internal signal generating source, and checks the tuning code. The modified tuning code is applied to the antenna tuning circuit (eg, the antenna tuning circuit 420 of FIG. 4 ), and after application, a degree of reduction in the error rate (hereinafter referred to as a second reduction value) may be confirmed.

According to an embodiment, in operation 743, the processor 430 compares the first reduction value and the second reduction value, and based on the comparison result, the error rate reduction operation is performed by an output adjustment operation and a tuning code application operation (eg, triggering). operation) can be determined as one of them. For example, when the first reduction value is greater than a specified ratio (eg, 10%) to the second reduction value, the processor 430 may determine the output adjustment operation as the error rate reduction operation. The processor 430 may determine the operation of applying the tuning code as an operation of reducing the error rate when the first reduction value is not larger than a specified ratio (eg, 10%) or more relative to the second reduction value. As another example, the processor 430 may determine a method having a higher value among the two reduction values as an error rate reduction operation.

According to an embodiment, in operation 744, the processor 430 may perform an error rate reduction operation according to the periodicity of the identified internal signal. For example, the processor 430 adjusts the output of the source while the internal signal is being generated, and sets the output of the internal signal generating source to its previous value (e.g., before generating the internal signal) while the internal signal is not being generated. set output value). While the internal signal is generated, the processor 430 controls the antenna tuning circuit 420 using a tuning code designated to be applied to the antenna tuning circuit 420 when the internal signal is generated, thereby resonating the resonance of the antenna receiving the RF signal. The frequency and/or load impedance between the antenna and the signal path through which the RF signal flows may be adjusted. While the internal signal is not generated, the processor 430 may control the antenna tuning circuit 420 to restore antenna tuning to its original state.

In some embodiments, operations 741, 742, 743, and 744 may be omitted, and an output adjustment operation and a tuning code application operation may be performed together to reduce an error rate.

According to an embodiment, if the internal signal having the recognized periodicity is not identified in the internal signal information 441 as a result of performing operation 730 (operation 730 - No), in operation 750, the processor 430 reduces reception sensitivity. The cellular communication circuit 411 checks the frequency band(s) of the generated RF signal, and the antenna module 370 can check reception antennas that receive the RF signal of the checked frequency band. For example, the cellular communication circuit 411 may support CA (carrier aggregation) for receiving an RF signal by combining a plurality of frequency bands. Accordingly, the processor 430 may confirm from the cellular communication circuit 411 that the RF signal has a plurality of frequency bands when CA is performed. As an example, it is confirmed that the frequency band of the RF signal having the error rate is LTE B1, and the receiving antenna designated thereto is the first antenna (eg, the first lower antenna 371a of FIG. 3B), the second antenna (eg : The fourth lower antenna 371d of FIG. 3B), the third antenna (eg, the first upper antenna 372a of FIG. 3B), and the fourth antenna (eg, the second upper antenna 372b of FIG. 3B) can include As another example, the frequency band of the RF signal having the error rate is additionally identified as B3 as another frequency band other than LTE B1, and the receiving antenna assigned to B3 is the first antenna (eg, the first lower antenna 371a of FIG. 3B) )), a second antenna (eg, the fourth lower antenna 371d of FIG. 3B), a third antenna (eg, the first upper antenna 372a of FIG. 3B), and a fourth antenna (eg, the fourth lower antenna 371d of FIG. 3B) 2 upper antennas 372b) may be included.

According to an embodiment, after performing operation 750, the processor 430 may perform operation 760 of finding a tuning code that is robust to an unidentified internal signal for each of the identified frequency bands.

According to an embodiment, in operation 761, the processor 430 may select one of the identified receive antennas.

According to an embodiment, in operation 762, the processor 430 may check tuning codes assigned to the selected reception antenna from the tuning code information 442 stored in the memory 440 and select one of the checked tuning codes.

According to an embodiment, in operation 763, the processor 430 may apply the selected tuning code to the antenna tuning circuit 420. Accordingly, the antenna tuning circuit 420 may adjust a resonant frequency of the selected reception antenna and/or a load impedance between the selected reception antenna and a signal path through which the RF signal flows, based on the selected tuning code. After applying the tuning code, the processor 430 may measure an error rate of the data signal received from the cellular communication circuit 411 .

According to an embodiment, in operation 764, the processor 430 may determine whether the error rate is lowered to a reference value (eg, BLER 5%) or less.

According to an embodiment, when the error rate is lower than the reference value (operation 764 - Yes), in operation 771, the processor 430 may determine the tuning code selected in operation 762 as a tuning code to be used for the triggering operation.

According to an embodiment, if the error rate does not decrease below the reference value (operation 764 - No), in operation 765 the processor 430 determines whether all tuning codes assigned to the selected receive antenna have been applied to the antenna tuning circuit 420. can judge When unapplied tuning code(s) remain (operation 765-No), in operation 766, the processor 430 selects one of the remaining tuning code(s) and sequentially performs operations 763 and 764 again. . When all tuning codes are applied to the antenna tuning circuit 420 (operation 765 - Yes), in operation 767 the processor 430 may determine whether all of the received antennas checked in operation 750 have been selected. When unselected receive antenna(s) remain (operation 767-No), in operation 768, the processor 430 selects one of the remaining receive antenna(s) and sequentially performs operations 762, 763, and 764. can be done again.

According to an embodiment, when it is determined in operation 767 that all receive antennas are selected (operation 767-yes), in operation 772, the processor 430 sets the error rate to be the largest among tuning codes applied to the antenna tuning circuit 420. A tuning code to decrease may be determined as a tuning code to be used for a triggering operation.

According to an embodiment, in operation 780, the processor 430 may apply the tuning code determined in operation 771 or operation 772 to the antenna tuning circuit 420 according to the periodicity of the error rate recognized in operation 720. For example, the processor 430 controls the antenna tuning circuit 420 using the determined tuning code while an error rate equal to or higher than the recognized threshold occurs in operation 720, thereby controlling the resonance of the receiving antenna assigned to the determined tuning code. A frequency and/or load impedance between a receive antenna assigned to the determined tuning code and a signal path through which an RF signal flows may be adjusted. The processor 430 may control the antenna tuning circuit 420 to restore antenna tuning to its original state while an error rate equal to or greater than the recognized threshold does not occur in operation 720 .

In various embodiments, an electronic device (eg, the electronic device 300 of FIGS. 3 and 4 ) includes a plurality of antennas (eg, 370 of FIG. 3 ); a processor (eg, 430 in FIG. 4 ); An RF signal received from an external device through at least one of the plurality of antennas is converted into a data signal and output to the processor, and the data signal received from the processor is converted into an RF signal and converted into at least one of the plurality of antennas. a wireless communication circuit configured to transmit to an external device via (eg, 410 in FIG. 4 ); an antenna tuning circuit electrically connected to the plurality of antennas and configured to adjust electrical lengths of the antennas (eg, 420 in FIG. 4 ); and a memory (eg, 440 in FIG. 4 ) coupled to the processor, wherein the memory, when executed, performs an operation for the processor to periodically measure an error rate of a data signal received from the wireless communication circuit, the measurement Based on the result, recognizing that the reception sensitivity reduction of the data signal received from the wireless communication circuit occurs periodically, based on the periodicity of the reception sensitivity reduction, the electronic device that caused the reception sensitivity reduction To perform an operation of identifying an internal signal generated by the device, and a triggering operation of applying a tuning code designated to be applied to the antenna tuning circuit when the internal signal is generated to the antenna tuning circuit according to a generation period of the internal signal instructions can be stored.

The instructions include an operation of the processor to store internal signal information including information representing periodicity unique to each internal signal in the memory, information on tuning codes designated for each antenna, and an internal signal among the tuning codes. Storing tuning code information including information representing a tuning code designated as robust to a signal in the memory; identifying an internal signal having the same periodicity as the periodicity of the reception sensitivity deterioration from the internal signal information; An operation of identifying a receiving antenna receiving a degraded RF signal from among the plurality of antennas, checking tuning codes assigned to the receiving antenna from the tuning code information, and identifying the internal signal among the checked tuning codes. An operation of checking a tuning code specified in the tuning code information and an operation of determining the checked tuning code as a tuning code to be used for the triggering operation may be performed.

The instructions include an operation of the processor to identify a source that generates an internal signal that caused the deterioration in reception sensitivity, adjust an output of the source, and a first reduction representing a degree to which an error rate is reduced after the output is adjusted. Operation of checking a value, applying a tuning code designated to be applied to the antenna tuning circuit when the internal signal is generated without adjusting the output of the generating source to the antenna tuning circuit, and indicating a degree to which an error rate is reduced after applying the tuning code Based on the operation of checking the second reduction value and the comparison result between the first reduction value and the second reduction value, instead of the triggering operation, the output of the generation source is matched to the generation period of the internal signal, You can make adjustments work.

The instructions include tuning code information including information about tuning codes designated by the processor for each antenna and information indicating a tuning code designated to be applied to the antenna tuning circuit when an internal signal having periodicity is generated among the tuning codes. An operation of storing in the memory, an operation of identifying a frequency band of an RF signal in which the deterioration in reception sensitivity has occurred, an operation of identifying a receiving antenna receiving an RF signal of the identified frequency band from among the plurality of antennas, and An operation of finding a tuning code to be used for the triggering operation among tuning codes assigned to the receiving antenna may be performed.

The instructions include, as part of the finding operation, the processor checks tuning codes assigned to the receiving antenna from the tuning code information, selects one of the checked tuning codes, and uses the selected tuning code to tune the antenna. circuit, and when the error rate measured after applying the tuning code is equal to or less than a specified reference value, the selected tuning code may be determined as a tuning code to be used for the triggering operation.

In the above instructions, as part of the finding operation, the processor, as part of the finding operation, when an error rate equal to or less than the reference value is not measured even though all of the identified tuning codes are applied, reduces the error rate the most among the identified tuning codes. It is possible to determine a tuning code to be used for the triggering operation.

The RF signal in which the reception desensitization has occurred may have a plurality of frequency bands, and the instructions may cause the processor to perform the searching operation for each frequency band.

The plurality of frequency bands may include a frequency band designated to be used for at least one of LTE and 5G in cellular communication.

The instructions cause the processor to perform the triggering operation for a given triggering time, and the triggering time may be set in units of frames, slots, or slots, which are resource allocation units in cellular communication.

The instructions include an RF signal periodically transmitted to a base station through at least one of the plurality of antennas in the wireless communication circuit, a clock frequency specified by a camera of the electronic device, as an internal signal causing the reception sensitivity degradation by the processor. It is possible to recognize periodically generated data or a power signal periodically generated by pulse width modulation (PWM) or pulse frequency modulation (PFM) in a power management circuit of the electronic device. An RF signal as an internal signal that causes the reception sensitivity degradation may include a sounding reference signal (SRS).

In various embodiments, a method of operating an electronic device may include periodically measuring an error rate of a data signal received from a wireless communication circuit of the electronic device to a processor of the electronic device (eg, 710 of FIG. 7A ); Based on the measurement result, recognizing that reception sensitivity deterioration occurs periodically (eg, 720 of FIG. 7A ); based on the periodicity of the reception sensitivity degradation, identifying an internal signal causing the reception sensitivity degradation and a source generating the internal signal in the electronic device; adjusting the output of the generating source and checking a first reduction value indicating a degree to which the error rate is reduced after the output is adjusted (eg, 741 of FIG. 7A ); An operation of applying a tuning code designated to the internal signal to an antenna tuning circuit of the electronic device without adjusting the output of the generating source, and checking a second reduction value indicating a degree to which an error rate is reduced after applying the tuning code (eg: 742 in FIG. 7A); and determining one of a triggering operation and an output adjustment operation as an operation for reducing an error rate based on a comparison result between the first reduction value and the second reduction value (eg, 743 of FIG. 7A ). can The triggering operation may be to apply a tuning code specified to the internal signal to the antenna tuning circuit according to a generation period of the internal signal. The output adjusting operation may include adjusting the output of the noise source according to a generation period of the internal signal.

The determining operation may include determining the output adjustment operation as the error rate reduction operation when the first reduction value is greater than a specified ratio or more than the second reduction value; and determining the triggering operation as the error rate reduction operation when the value is not greater than the ratio or greater than the reduction value.

The method may include an operation of checking a frequency band of an RF signal in which the reception desensitization occurs when the internal signal causing the reception desensitization is not identified (eg, 750 of FIG. 7B ); identifying a reception antenna receiving the RF signal of the identified frequency band among antennas of the electronic device (eg, 750 of FIG. 7B ); and searching for a tuning code to be used for the triggering operation among tuning codes assigned to the receiving antenna (eg, 760 of FIG. 7B ).

In various embodiments, an electronic device (eg, the electronic device 300 of FIGS. 3 and 4 ) includes a plurality of antennas (eg, 370 of FIGS. 3 and 4 ); a processor (eg 430 in FIG. 4 ); An RF signal received from an external device through at least one of the plurality of antennas is converted into a data signal and output to the processor, and the data signal received from the processor is converted into an RF signal and converted into at least one of the plurality of antennas. a wireless communication circuit configured to transmit to an external device via (eg, 410 in FIG. 4 ); A memory (eg, 440 in FIG. 4 ) connected to the processor, wherein the memory, when executed, performs an operation for the processor to periodically measure an error rate of a data signal received from the wireless communication circuit, the measurement result Based on the operation of recognizing that the reception sensitivity reduction of the data signal received from the wireless communication circuit occurs periodically, based on the periodicity of the reception sensitivity reduction, the electronic device that caused the reception sensitivity reduction in the electronic device It may store instructions for performing an operation of identifying an internal signal generated in , an operation of identifying a source generating an internal signal that causes the deterioration in reception sensitivity, and an operation of adjusting an output of the generation source.

The instructions may cause the processor to perform an operation of lowering transmission power of an RF signal output from at least one of the plurality of antennas in the wireless communication circuit when the source is the wireless communication circuit.

The embodiments of the present invention disclosed in this specification and drawings are only presented as specific examples to easily explain the technical content according to the embodiments of the present invention and help understanding of the embodiments of the present invention, and limit the scope of the embodiments of the present invention. It's not what I want to do. Therefore, the scope of various embodiments of the present invention should be construed as including all changes or modified forms derived based on the technical spirit of various embodiments of the present invention in addition to the embodiments disclosed herein are included in the scope of various embodiments of the present invention. .

Claims (16)

In electronic devices,
a plurality of antennas;
processor;
An RF signal received from an external device through at least one of the plurality of antennas is converted into a data signal and output to the processor, and the data signal received from the processor is converted into an RF signal and converted into at least one of the plurality of antennas. a wireless communication circuit configured to transmit to an external device via;
an antenna tuning circuit electrically connected to the plurality of antennas and configured to adjust electrical lengths of the antennas; and
a memory coupled to the processor;
The memory, when executed, causes the processor to:
An operation of periodically measuring an error rate of a data signal received from the wireless communication circuit;
Based on the measurement result, recognizing that a decrease in the reception sensitivity of the data signal received from the wireless communication circuit occurs periodically;
Based on the periodicity of the reception sensitivity degradation, an operation of identifying an internal signal generated in the electronic device that caused the reception sensitivity degradation in the electronic device; and
An electronic device that stores instructions for performing a triggering operation of applying a tuning code designated to be applied to the antenna tuning circuit when the internal signal is generated to the antenna tuning circuit according to a generation period of the internal signal. The method of claim 1, wherein the instructions are the processor,
storing internal signal information including information representing a periodicity unique to each internal signal in the memory;
storing, in the memory, tuning code information including information about tuning codes designated for each antenna and information indicating a tuning code designated to be robust to an internal signal among the tuning codes;
identifying an internal signal having the same periodicity as the periodicity of the reception desensitization from the internal signal information;
An operation of identifying a receiving antenna receiving the RF signal in which the reception sensitivity degradation has occurred among the plurality of antennas;
Checking tuning codes assigned to the receiving antenna from the tuning code information, and checking a tuning code assigned to the identified internal signal among the checked tuning codes from the tuning code information; and
An electronic device that determines the checked tuning code as a tuning code to be used for the triggering operation. The method of claim 1, wherein the instructions are the processor,
An operation of identifying a source that generates an internal signal that causes the reception sensitivity to be lowered;
Adjusting the output of the generating source and checking a first reduction value indicating a degree of reduction in an error rate after the output is adjusted;
Without adjusting the output of the generating source, when the internal signal is generated, a tuning code designated to be applied to the antenna tuning circuit is applied to the antenna tuning circuit, and a second reduction value indicating a degree of reduction in an error rate after applying the tuning code is checked. action, and
Based on a comparison result between the first reduction value and the second reduction value, instead of the triggering operation, an operation of adjusting an output of the generation source according to a generation period of the internal signal is performed. The method of claim 1, wherein the instructions are the processor,
Storing, in the memory, tuning code information including information on tuning codes designated for each antenna and information indicating a tuning code designated to be applied to the antenna tuning circuit when an internal signal having periodicity is generated among the tuning codes ,
An operation of confirming a frequency band of an RF signal in which the reception sensitivity degradation has occurred;
An operation of identifying a receiving antenna receiving an RF signal of the identified frequency band from among the plurality of antennas; and
An electronic device for performing an operation of finding a tuning code to be used for the triggering operation among tuning codes assigned to the receiving antenna. 5. The method of claim 4, wherein the instructions include, as part of the finding operation, the processor:
Checking tuning codes assigned to the receiving antenna from the tuning code information;
selecting one of the identified tuning codes;
The electronic device applies the selected tuning code to the antenna tuning circuit, and determines the selected tuning code as a tuning code to be used for the triggering operation when an error rate measured after applying the tuning code is equal to or less than a specified reference value. 6. The method of claim 5, wherein the instructions include, as part of the finding operation, the processor:
When an error rate lower than the reference value is not measured even though all of the checked tuning codes are applied, to determine a tuning code that reduces the error rate the most among the checked tuning codes as a tuning code to be used for the triggering operation. electronic devices that do. The method of claim 4, wherein the RF signal in which the reception desensitization has occurred has a plurality of frequency bands, the instructions are the processor,
An electronic device that performs the finding operation for each frequency band. The electronic device of claim 7 , wherein the plurality of frequency bands include a frequency band designated to be used for at least one of LTE and 5G in cellular communication. The method of claim 1, wherein the instructions cause the processor to perform the triggering operation for a given triggering time,
The triggering time is set in units of frames, slots, or slots, which are resource allocation units in cellular communication. The method of claim 1, wherein the instructions are internal signals causing the processor to degrade the reception sensitivity,
An RF signal periodically transmitted to a base station through at least one of the plurality of antennas in the wireless communication circuit;
Data periodically generated according to a clock frequency designated by the camera of the electronic device, or
An electronic device that recognizes a power signal periodically generated by pulse width modulation (PWM) or pulse frequency modulation (PFM) in a power management circuit of the electronic device. The electronic device of claim 10, wherein the RF signal as the internal signal causing the reception sensitivity degradation includes a sounding reference signal (SRS). A method for operating an electronic device,
periodically measuring an error rate of a data signal received from a wireless communication circuit of the electronic device to a processor of the electronic device;
Recognizing that reception sensitivity deterioration occurs periodically based on the measurement result;
based on the periodicity of the reception sensitivity degradation, identifying an internal signal causing the reception sensitivity degradation and a source generating the internal signal in the electronic device;
adjusting the output of the generating source and checking a first reduction value indicating a degree of reduction in an error rate after the output is adjusted;
applying a tuning code designated to the internal signal to an antenna tuning circuit of the electronic device without adjusting an output of the generating source, and checking a second reduction value indicating a degree to which an error rate is reduced after applying the tuning code; and
Based on a comparison result between the first reduction value and the second reduction value, determining one of a triggering operation and an output adjustment operation as an operation for reducing an error rate,
The triggering operation is to apply a tuning code designated for the internal signal to the antenna tuning circuit according to a generation period of the internal signal,
The output adjusting operation is to adjust the output of the noise source according to the generation period of the internal signal. The method of claim 12, wherein the determining operation,
determining the output adjustment operation as the error rate reduction operation when the first reduction value is greater than a specified ratio or greater than the second reduction value;
and determining the triggering operation as the error rate reduction operation when the first reduction value is not greater than the ratio or more than the second reduction value. According to claim 12,
checking a frequency band of an RF signal in which the reception sensitivity degradation occurs when the internal signal causing the reception sensitivity degradation is not identified;
identifying a reception antenna receiving the RF signal of the identified frequency band among antennas of the electronic device; and
The method further comprising an operation of finding a tuning code to be used for the triggering operation among tuning codes assigned to the receiving antenna. In electronic devices,
a plurality of antennas;
processor;
An RF signal received from an external device through at least one of the plurality of antennas is converted into a data signal and output to the processor, and the data signal received from the processor is converted into an RF signal and converted into at least one of the plurality of antennas. a wireless communication circuit configured to transmit to an external device via;
a memory coupled to the processor;
The memory, when executed, causes the processor to:
An operation of periodically measuring an error rate of a data signal received from the wireless communication circuit;
Based on the measurement result, recognizing that a decrease in the reception sensitivity of the data signal received from the wireless communication circuit occurs periodically;
Identifying an internal signal generated in the electronic device that causes the reception sensitivity degradation in the electronic device based on the periodicity of the reception sensitivity degradation;
An operation of identifying a source that generates an internal signal that causes the reception sensitivity to be lowered; and
An electronic device storing instructions for performing an operation of adjusting an output of the generating source. 16. The method of claim 15, wherein the instructions are:
When the source is the wireless communication circuit, the electronic device causes the wireless communication circuit to perform an operation of lowering transmission power of an RF signal output to at least one of the plurality of antennas.

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