Electronic device for controlling antenna switching and operating method thereof

Abstract

This electronic device comprises: a first antenna (341); a second antenna (342); a duplexer (326) corresponding to a first frequency band; a first filter (327) corresponding to a second frequency band; a first antenna switching circuit (328) connected to the duplexer, the first filter, and the first antenna; a second filter (332) corresponding to the second frequency band; a power amplifier (PA) (323) connected to the first filter or the second filter; and a switch (325) configured to connect the PA to the first filter so that a first sounding reference signal (SRS) is transmitted via the first antenna, or connect the PA to the second filter so that a second SRS is transmitted via the second antenna on the basis of the transmission of the first SRS. Various other embodiments are also possible.

Description

Electronic device for controlling antenna switching and method of operation thereof

[0001] One embodiment of the present disclosure relates to an electronic device for controlling antenna switching and a method of operating the same.

[0002] An electronic device may include various components for transmitting / receiving signals, and a representative component among these components may be a radio frequency front end (RFFE) circuit. The RFFE circuit may include an antenna switching circuit (e.g., an antenna switching module (ASM)) configured to switch an antenna used for transmitting / receiving signals. For example, the electronic device may perform an antenna switching operation through the antenna switching circuit to transmit a sounding reference signal (SRS).

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

[0004] According to one embodiment of the present disclosure, the electronic device (101) may include a first antenna (341).

[0005] According to one embodiment of the present disclosure, the electronic device may include a second antenna (342).

[0006] According to one embodiment of the present disclosure, the electronic device may include a duplexer (326) corresponding to the first frequency band.

[0007] According to one embodiment of the present disclosure, the electronic device may include a first filter (327) corresponding to a second frequency band.

[0008] According to one embodiment of the present disclosure, the electronic device may include a first antenna switching circuit (328) connected to the duplexer, the first filter, and the first antenna.

[0009] According to one embodiment of the present disclosure, the electronic device may include a second filter (332) corresponding to the second frequency band.

[0010] According to one embodiment of the present disclosure, the electronic device may include a power amplifier (PA) (323) connected to the first filter or the second filter.

[0011] According to one embodiment of the present disclosure, the electronic device includes a switch (325) configured to connect the PA to the first filter such that a first sounding reference signal (SRS) is transmitted through the first antenna, or to connect the PA to the second filter such that a second SRS is transmitted through the second antenna based on transmission of the first SRS.

[0012] According to one embodiment of the present disclosure, an electronic device (101) includes a first antenna (341), a second antenna (342), a duplexer (326) corresponding to a first frequency band, a first filter (327) corresponding to a second frequency band, a first antenna switching circuit (328) connected to the duplexer, the first filter, and the first antenna, a second filter (332) corresponding to the second frequency band, a power amplifier (PA) (323) connected to the first filter or the second filter, a switch (325) connecting the PA to the first filter or the second filter, one or more processors (120) including a processing circuit, and a memory (130) storing instructions.

[0013] According to one embodiment of the present disclosure, the instructions, when individually or collectively executed by the one or more processors, cause the electronic device to control the switch to connect the PA to the first filter such that a first sounding reference signal (SRS) is transmitted via the first antenna.

[0014] According to one embodiment of the present disclosure, the instructions cause the one or more processors, individually or collectively, to control the switch to connect the PA to the second filter such that a second SRS is transmitted via the second antenna based on transmission of the first SRS.

[0015] FIG. 1 is a block diagram schematically illustrating an electronic device within a network environment according to one embodiment.

[0016] FIG. 2a is a diagram illustrating an issue caused by antenna switching for transmitting a sounding reference signal (SRS).

[0017] Figure 2b is a diagram for explaining an issue caused by antenna switching for transmitting SRS.

[0018] Figure 2c is a diagram for explaining an issue caused by antenna switching for transmitting SRS.

[0019] Figure 2d is a diagram to explain an issue caused by antenna switching for transmitting SRS.

[0020] FIG. 3 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0021] FIG. 4 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0022] FIG. 5 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0023] FIG. 6 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0024] FIG. 7A is a block diagram schematically illustrating an electronic device according to one embodiment.

[0025] FIG. 7b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0026] FIG. 8A is a block diagram schematically illustrating an electronic device according to one embodiment.

[0027] FIG. 8b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0028] FIG. 9A is a block diagram schematically illustrating an electronic device according to one embodiment.

[0029] FIG. 9b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0030] FIG. 10 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0031] FIG. 11 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0032] FIG. 12A is a block diagram schematically illustrating an electronic device according to one embodiment.

[0033] FIG. 12b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0034] FIG. 13a is a block diagram schematically illustrating an electronic device according to one embodiment.

[0035] FIG. 13b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0036] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the attached drawings. In addition, when describing an embodiment of the present disclosure, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of an embodiment of the present disclosure, such detailed description will be omitted. In addition, the terms described below are terms defined in consideration of the functions in an embodiment of the present disclosure, and these may vary depending on the intention or custom of the user or operator. Therefore, the definitions should be made based on the contents throughout this specification.

[0037] It should be noted that the technical terms used in this specification are merely used to describe specific embodiments and are not intended to limit the embodiments of the present disclosure. Alternatively, unless specifically defined otherwise herein, the technical terms used in this specification should be interpreted as having a meaning generally understood by a person skilled in the art to which the present disclosure pertains, and should not be interpreted in an excessively broad or narrow sense. Alternatively, if a technical term used in this specification is an incorrect technical term that does not accurately express the spirit of the present disclosure, it should be replaced with a technical term that can be correctly understood by a person skilled in the art. Alternatively, general terms used in the embodiments of the present disclosure should be interpreted as defined in the dictionary or according to the context, and should not be interpreted in an excessively narrow sense.

[0038] Alternatively, the singular expressions used herein include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "consist of" or "comprises" should not be construed to necessarily include all of the various components or various operations described in the specification, and should be construed to mean that some of the components or some of the operations may not be included, or that additional components or operations may be included.

[0039] Alternatively, terms including ordinal numbers, such as "first," "second," etc., used herein may be used to describe various components, but the components should not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present disclosure, a first component could be referred to as a "second component," and similarly, a second component could also be referred to as a "first component."

[0040] When a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to that other component, but there may also be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0041] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components will be given the same reference numbers and redundant descriptions thereof will be omitted. Alternatively, when describing an embodiment of the present disclosure, if a detailed description of a related known technology is determined to obscure the gist of the present disclosure, the detailed description thereof will be omitted. Alternatively, it should be noted that the attached drawings are only intended to facilitate easy understanding of the spirit of the present disclosure and should not be construed as limiting the spirit of the present disclosure by the attached drawings. The spirit of the present disclosure should be construed to extend to all modifications, equivalents, and substitutes other than the attached drawings.

[0042] Hereinafter, an embodiment of the present disclosure will be described using an electronic device as an example, but the electronic device may also be referred to as a terminal, a mobile station, mobile equipment (ME), user equipment (UE), user terminal (UT), subscriber station (SS), wireless device, handheld device, or access terminal (AT). Alternatively, in an embodiment of the present disclosure, the electronic device may be a device having a communication function, such as a mobile phone, a personal digital assistant (PDA), a smart phone, a wireless MODEM, or a laptop.

[0043] FIG. 1 is a block diagram schematically illustrating an electronic device (101) within a network environment (100) according to one embodiment.

[0044] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0045] The processor (120) may control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) by executing, for example, software (e.g., a program (140)), and may perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculation, the processor (120) may store a command or data received from another component (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the command or data stored in the volatile memory (132), and store the resulting data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0046] The auxiliary processor (123) may control at least a part of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, in the electronic device (101) itself where artificial intelligence is performed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0047] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0048] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0049] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0050] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0051] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one 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 a force generated by the touch.

[0052] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0053] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0054] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In 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.

[0055] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0056] A haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0057] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0058] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as at least a part of, for example, a power management integrated circuit (PMIC) (power management integrated circuit (circuitry)).

[0059] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0060] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, Wi-Fi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0061] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) may support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0062] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the selected at least one antenna. According to some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0063] In one embodiment, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0064] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0065] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0066] Electronic devices according to embodiments disclosed herein may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments disclosed herein are not limited to the aforementioned devices.

[0067] The embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to a specific embodiment, but should be understood to include various modifications, equivalents, or substitutes of the embodiment. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0068] The term "module" used in one embodiment of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (circuitry) (ASIC).

[0069] An embodiment of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0070] According to one embodiment, the method according to one embodiment disclosed in the present document may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0071] According to one embodiment, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to one embodiment, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to one embodiment, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0072] FIGS. 2A to 2D are diagrams for explaining issues caused by antenna switching for transmitting a sounding reference signal (SRS).

[0073] The number of RF bands used in electronic devices (101) (e.g., the electronic device (101) of FIG. 1) is increasing, and thus, cases in which multiple paths (or filters) are simultaneously activated are increasing. The electronic device (101) may include at least one radio frequency front end (RFFE) circuit to support multiple RF bands. The electronic device (101) may include an antenna switching circuit (e.g., an antenna switching module (ASM)) to transmit signals of multiple RF bands through a limited number of antennas. For example, the electronic device (101) may connect one of the filters of multiple RF bands to an antenna through the antenna switching circuit. However, depending on the switching conditions of the antenna switching circuit, discontinuities in amplitude and / or phase may occur.

[0074] Referring to FIG. 2A, the electronic device (101) may include an antenna switching circuit (210). For example, the antenna switching circuit (210) may be connected to a filter corresponding to a first frequency band (e.g., a frequency band of a long term evolution (LTE) system) and a filter corresponding to a second frequency band (e.g., a frequency band of an NR system). For example, dual connectivity (e.g., EN(EUTRA(evolved UMTS (universal mobile telecommunication system) terrestrial radio access network))-NR)-DC)) may be configured for the electronic device (101) to be connected to both a network (e.g., an LTE base station) using a first frequency band and a network (e.g., an NR base station) using a second frequency band.

[0075] The first antenna (231) can transmit a first signal (201) of a first frequency band through an antenna switching circuit (210). For example, the antenna switching circuit (210) can connect a filter corresponding to the first frequency band to an antenna port (211) connected to the first antenna (231). The electronic device (101) can perform an antenna switching operation for transmitting an SRS. The antenna switching operation can be an operation of switching between antennas so that the electronic device (101) can transmit an SRS to a network through each of a plurality of antennas (e.g., the first antenna (231), the second antenna (232), the third antenna (233), and the fourth antenna (234)). The network can estimate an uplink channel based on the SRSs received from the electronic device (101). The network can perform pre-coding or beamforming operations on downlink data based on the estimated uplink channel, thereby increasing data throughput.

[0076] The electronic device (101) may connect a filter corresponding to the second frequency band to the antenna port (211) or the SRS output port (212) in order to transmit SRS signals (e.g., the second signal (202)) in the second frequency band. For example, when the electronic device (101) wants to transmit the second signal (202) through the first antenna (231), the electronic device (101) may control the antenna switching circuit (210) so that the antenna port (211) connected to the first antenna (231) is connected to the filter corresponding to the second frequency band. For example, when the electronic device (101) wants to transmit the second signal (202) through the second antenna (232), the third antenna (233), or the fourth antenna (234), the electronic device (101) may control the antenna switching circuit (210) so that the SRS output port (212) is connected to the filter corresponding to the second frequency band.

[0077] The SRS output port (212) may be connected to a second antenna (232), a third antenna (233), or a fourth antenna (234) via at least one switching circuit (not shown in FIG. 2A). The SRS output port (212) may be used interchangeably with terms such as SRS port, SRS output port, SRS connection port, SRS transmission port, SRS path port, SRS output terminal, SRS transmission terminal, and / or terms having equivalent technical / functional meanings, from the perspective of being connected to a path through which an SRS signal is transmitted.

[0078] FIG. 2B illustrates an impedance change in a first frequency band that occurs when a filter corresponding to a second frequency band is connected to an SRS output port (212) while the electronic device (101) is connected to both the first frequency band and the second frequency band. The filter corresponding to the first frequency band is connected to the antenna port (211) through an antenna switching circuit (210), and the electronic device (101) can receive downlink data from a network (e.g., an LTE base station) on the first frequency band. A Smith chart (240) represents an impedance change in the first frequency band that occurs when a filter corresponding to the second frequency band is connected to the SRS output port (212) while receiving downlink data. For example, the first frequency band may be a middle band (MB). As an example, MB may be a frequency band of about 1 GHz or more and 2.3 GHz or less. For example, for the downlink, MB may be a frequency band of about 1.8 GHz or more and about 2.2 GHz or less, and for the uplink, MB may be a frequency band of about 1.7 GHz or more and about 2.0 GHz or less. As an example, the Smith chart (240) represents the impedance at band 66 (B66). The first pattern (241) may represent the impedance at B66 when the filter corresponding to the second frequency band is connected to the SRS output port (212) for SRS antenna switching. The second pattern (242) may represent the impedance at B66 when the filter corresponding to the second frequency band is not connected to the SRS output port (212) for SRS antenna switching (for example, the filter corresponding to the second frequency band may be connected to an antenna port different from the antenna port (211) and the SRS output port (212). Referring to the first pattern (241) and the second pattern (242), it can be confirmed that the trajectory change of the impedance is different.

[0079] Referring to FIG. 2C, the graph (250) may represent a phase by frequency. The horizontal axis of the graph (250) may represent a frequency (unit: GHz), and the vertical axis of the graph (250) may represent a phase (unit: degree). The first line (251) may represent a phase when a filter corresponding to a second frequency band is connected to the SRS output port (212) for SRS antenna switching. The second line (252) may represent a phase when a filter corresponding to a second frequency band is not connected to the SRS output port (212) for SRS antenna switching (for example, the filter corresponding to the second frequency band may be connected to an antenna port different from the antenna port (211) and the SRS output port (212). For example, at a frequency of about 2.144 GHz, the first line (251) may represent about 37 degrees, and the second line (252) may represent about 29.8 degrees. Depending on whether the filter corresponding to the second frequency band and the SRS output port (212) are connected, it can be confirmed that a phase difference of about 7.2 degrees exists.

[0080] Referring to FIG. 2d, a constellation (270) may represent constellation points when a higher-order modulation scheme (e.g., 256 QAM (quadrature amplitude modulation) and a modulation and coding scheme (MCS) level of 20 or higher) is applied.

[0081] The first constellation point set (271) may represent constellation points when a filter corresponding to the second frequency band is not connected to the SRS output port (212) for SRS antenna switching. The second constellation point set (272) may represent constellation points when a filter corresponding to the second frequency band is connected to the SRS output port (212) for SRS antenna switching. Due to a phase difference of approximately 7.2 degrees, the constellation points may be misaligned, and due to the misaligned constellation points, the communication quality in the first frequency band may be degraded (for example, the block error rate (BLER) may be increased). This deterioration in communication quality may cause a decrease in the overall system throughput.

[0082] In order to resolve the amplitude mismatch and / or phase mismatch as described above, a design change of the antenna switching circuit (210) may be considered. However, since the SRS output port (212) is connected to the second antenna (232), the third antenna (233), or the fourth antenna (234) through at least one switching circuit, and a separate impedance matching circuit is formed for each path corresponding to each antenna, it may be difficult to stably maintain the characteristic impedance (e.g., 50 Ohm) at the SRS output port (212). Accordingly, when the order of the modulation scheme exceeds a critical order (e.g., when the modulation order is high order) (e.g., when the modulation scheme is 256 QAM), it may be difficult to maintain the maximum throughput due to impedance mismatching resulting from antenna switching.

[0083] To address the above issues, embodiments of the present disclosure may provide an electronic device for controlling antenna switching for SRS transmission and a method of operating the same.

[0084] FIG. 3 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0085] Referring to FIG. 3, an electronic device (101) (e.g., the electronic device (101) of FIG. 1) (e.g., a smart phone) may include a processor (120) (e.g., the processor (120) of FIG. 1), a radio frequency integrated circuit (RFIC) (300), a radio frequency front end (RFFE) circuit (310), a first antenna (341), a second antenna (342), a third antenna (343), and / or a fourth antenna (344). In FIG. 3, an example is shown in which the electronic device (101) includes four antennas including the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344), but there may be no limitation on the number of antennas included in the electronic device (101).

[0086] In one embodiment, the processor (120) may include an application processor and / or a communication processor. According to one embodiment, the electronic device (101) may further include at least one of the components described in FIG. 1. According to one embodiment, the RFIC (300) and / or the RFFE circuit (310) may form at least a part of the wireless communication module (192) of FIG. 1. The processor (120) may support the establishment of a communication channel in a band to be used for wireless communication with a cellular network (e.g., the second network (199) of FIG. 1), and network communication through the established communication channel. According to one embodiment, the cellular network may be a second generation (2G) network. nd generation: 2G) network, 3rd generation (3 rd generation: 3G) network, 4th generation (4 thgeneration: 4G) network, long term evolution (LTE) network, and / or 5th generation (5 th generation: 5G) networks.

[0087] In one embodiment, the processor (120) may control the RFIC (300) via a control interface. In one embodiment, the processor (120) may control the RFIC (300) and the RFFE circuit (310) to transmit the SRS through the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344). In one embodiment, the processor (120) may control the RFIC (300) and the RFFE circuit (310) to transmit the SRS through the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344) based on a slot structure of the wireless communication system.

[0088] In one embodiment, the RFIC (300) may, upon transmission, convert a baseband signal generated by the processor (120) into a radio frequency (RF) signal of a band used in a cellular network. In one embodiment, upon reception, the RFIC (300) may, upon reception, convert an RF signal preprocessed through the RFFE circuit (310) after being received from a cellular network through at least one of the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344) into a baseband signal so that the RF signal can be processed by the processor (120).

[0089] In one embodiment, the RFFE circuit (310) may include a controller (321), a first power amplifier (PA) (322), a second PA (323), a first switch (324), a second switch (325), a duplexer (326), a first filter (327), a first antenna switching circuit (328), a third switch (329), a first low noise amplifier (LNA) (330), a second LNA (331), a second filter (332), and / or a second antenna switching circuit (333). In one embodiment, each of the first switch (324) and the second switch (325) may be used as a transmit switch. In one embodiment, the third switch (329) may be used as a receive switch. As an example, the RFFE circuit (310) may be implemented as an LPAMID (power amplifier with integrated low noise amplifier and duplexers) circuit. For example, the first antenna switching circuit (328) and the second antenna switching circuit (333) may be implemented as an antenna switching module (ASM) or a switch.

[0090] In one embodiment, the first switch (324) may electrically connect the first PA (322) to the duplexer (326) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (321)).

[0091] In one embodiment, the second switch (325) may electrically connect the second PA (323) to the first filter (327) or the second filter (332) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (321)).

[0092] In one embodiment, the second antenna switching circuit (333) may electrically connect the second filter (332) to one of the second antenna (342), the third antenna (343), and / or the fourth antenna (344) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (321)).

[0093] In one embodiment, the controller (321) may control components included in the RFFE circuit (310) via an interface (e.g., mobile industry processor interface (MIPI)) with the processor (120) and / or the RFIC (300). In one embodiment, the controller (321) may perform an antenna switching operation for SRS transmission under the control of the processor (120) and / or the RFIC (300). For example, the controller (321) may perform an antenna switching operation so that the SRS is transmitted through each of the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344) based on a slot structure of a wireless communication system (e.g., an NR system) under the control of the processor (120) and / or the RFIC (300). The antenna switching operation is described as follows.

[0094] In one embodiment, the processor (120) may cause the second switch (325) to connect the second PA (323) to the first filter (327) so that the first SRS is transmitted through the first antenna (341). After the first SRS is transmitted, the processor (120) may cause the second switch (325) to connect the second PA (323) to the second filter (332) so that the second SRS output through the SRS out port is transmitted through the second antenna (342). After the second SRS is transmitted, the processor (120) may cause the second switch (325) to connect the second PA (323) to the second filter (332) so that the third SRS output through the SRS out port is transmitted through the third antenna (343). After the third SRS is transmitted, the processor (120) can cause the second switch (325) to connect the second PA (323) to the second filter (332), so that the fourth SRS output through the SRS out port is transmitted through the fourth antenna (344).

[0095] In one embodiment, the first PA (322) may be a PA corresponding to a first frequency band (e.g., middle band (MB)) (e.g., MB of an LTE system and / or MB of an NR system). For example, the MB may be a frequency band of about 1 GHz or more and 2.3 GHz or less. In one embodiment, the first PA (322) may amplify a signal of an input first frequency band based on a set gain to generate an amplified signal. A signal output from the first PA (322) may be transmitted to a duplexer (326) via a first switch (324).

[0096] In one embodiment, the second PA (323) may be a PA corresponding to a second frequency band (e.g., high band (HB)) (e.g., HB of an LTE system and / or HB of an NR system). For example, HB may be a frequency band exceeding about 2.3 GHz. In one embodiment, the second PA (322) may amplify a signal of an input second frequency band based on a set gain to generate an amplified signal. A signal output from the second PA (323) may be transmitted to the first filter (327) through the second switch (325).

[0097] In one embodiment, it is assumed that an EN-DC is formed for the electronic device (101). Since the EN-DC is formed for the electronic device (101), the electronic device (101) may be connected to an LTE network (e.g., an LTE base station) through, for example, a first frequency band (e.g., a B1 band, a B25 band, a B3 band, and / or a B66 band of an LTE system), and may be connected to an NR network (e.g., an NR base station) through a second frequency band (e.g., an N41 band of an NR system). In this case, the duplexer (326) and the first filter (327) may be connected to the first antenna switching circuit (328) through direct mapping.

[0098] In one embodiment, the electronic device (101) can transmit an SRS for an NR system. For example, the electronic device (101) can transmit the SRS through each of the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344). The electronic device (101) can transmit the SRS through each of the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344) based on the slot structure of the NR system. For example, the electronic device (101) may transmit a first SRS through a first antenna (341), transmit a second SRS through a second antenna (342) after transmitting the first SRS, transmit a third SRS through a third antenna (343) after transmitting the second SRS, and transmit a fourth SRS through a fourth antenna (344) after transmitting the third SRS. This may be described in detail as follows.

[0099] The controller (321) can control the second switch (325) to connect the second PA (323) to the first filter (327) to transmit the first SRS under the control of the processor (120) and / or the RFIC (300). When the second switch (325) connects the second PA (323) to the first filter (327), the first SRS transmitted from the second PA (323) can be input to the first filter (327), and the first filter (327) can perform a filtering operation on the input first SRS and then transmit it to the first antenna switching circuit (328). The first antenna switching circuit (328) can transmit the first SRS transmitted through the first filter (327) to the first antenna (341), so that the first SRS is transmitted through the first antenna (341).

[0100] According to one embodiment, after the first SRS is transmitted, the controller (321) may control the second switch (325) to connect the second PA (323) to the second filter (332) to transmit the second SRS under the control of the processor (120) and / or the RFIC (300). When the second switch (325) connects the second PA (323) to the first filter (327), the second SRS transmitted from the second PA (323) may be input to the second filter (332), and the second filter (332) may perform a filtering operation on the input second SRS and then transmit the second SRS to the second antenna switching circuit (333). The second antenna switching circuit (333) can transmit the second SRS transmitted through the second filter (332) to the second antenna (342), thereby allowing the second SRS to be transmitted through the second antenna (342).

[0101] According to one embodiment, after the second SRS is transmitted, the controller (321) may control the second switch (325) to connect the second PA (323) to the second filter (332) to transmit the third SRS, under the control of the processor (120) and / or the RFIC (300). When the second switch (325) connects the second PA (323) to the second filter (332), the third SRS transmitted from the second PA (323) may be input to the second filter (332), and the second filter (332) may perform a filtering operation on the input third SRS and then transmit the same to the second antenna switching circuit (333). The second antenna switching circuit (333) can transmit the third SRS transmitted through the second filter (332) to the third antenna (343), so that the third SRS is transmitted through the third antenna (343).

[0102] According to one embodiment, after the third SRS is transmitted, the controller (321) may control the second switch (325) to connect the second PA (323) to the second filter (332) to transmit the fourth SRS, under the control of the processor (120) and / or the RFIC (300). When the second switch (325) connects the second PA (323) to the second filter (332), the fourth SRS transmitted from the second PA (323) may be input to the second filter (332), and the second filter (332) may perform a filtering operation on the input second SRS and then transmit the same to the second antenna switching circuit (333). The second antenna switching circuit (333) can transmit the fourth SRS transmitted through the second filter (332) to the fourth antenna (344), so that the fourth SRS can be transmitted through the fourth antenna (344).

[0103] In one embodiment, the second filter (332) may include a filter dedicated to transmission of the second SRS, the third SRS, and / or the fourth SRS. In one embodiment, the second filter (332) may include a filter for reception of other signals.

[0104] In one embodiment, a signal received through the first antenna (341) may be transmitted to the third switch (329) through the first antenna switching circuit (328) and the duplexer (326). The third switch (329) may electrically connect the duplexer (326) and the first LNA (330) or the second LNA (331) under the control of the controller (321) (or under the control of the processor (120) and / or the RFIC (300)).

[0105] In one embodiment, when the duplexer (326) is electrically connected to the first LNA (330), the first LNA (330) can amplify a signal transmitted from the duplexer (326) based on a set gain and then transmit the signal to the RFIC (300). For example, when the duplexer (326) is electrically connected to the second LNA (331), the second LNA (331) can amplify a signal transmitted from the duplexer (326) based on a set gain and then transmit the signal to the RFIC (300).

[0106] In FIG. 3, a case is illustrated where the second filter (332) and the second antenna switching circuit (333) are included in the RFFE circuit (310), but at least one of the second filter (332) or the second antenna switching circuit (333) may not be included in the RFFE circuit (310) and may exist separately, or may be included in an RFFE circuit different from the RFFE circuit (310).

[0107] FIG. 4 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0108] Referring to FIG. 4, an electronic device (101) (e.g., the electronic device (101) of FIG. 1 or FIG. 3) (e.g., a smart phone) may include a first RFFE circuit (410), a second RFFE circuit (450), a first antenna (341) (e.g., the first antenna (341) of FIG. 3), a second antenna (342) (e.g., the second antenna (342) of FIG. 3), a third antenna (not shown in FIG. 4) (e.g., the third antenna (343) of FIG. 3), and / or a fourth antenna (not shown in FIG. 4) (e.g., the fourth antenna (344) of FIG. 3). In FIG. 4, an example is shown in which the electronic device (101) includes four antennas including a first antenna (341), a second antenna (342), a third antenna, and / or a fourth antenna, but there may be no limitation on the number of antennas included in the electronic device (101).

[0109] In one embodiment, the first RFFE circuit (410) and the second RFFE circuit (450) may operate under the control of a processor (not shown in FIG. 4) (e.g., the processor (120) of FIG. 1 or FIG. 3), which may include an application processor and / or a communication processor. According to one embodiment, the electronic device (101) may further include at least one of the components described in FIG. 1. According to one embodiment, the first RFFE circuit (410) and the second RFFE circuit (450) may form at least a portion of the wireless communication module (192) of FIG. 1. The processor may support the establishment of a communication channel in a band to be used for wireless communication with a cellular network (e.g., the second network (199) of FIG. 1), and network communication through the established communication channel. According to one embodiment, the cellular network may include a 2G network, a 3G network, a 4G network, an LTE network, and / or a 5G network.

[0110] In one embodiment, the processor may control the first RFFE circuit (410) and the second RFFE circuit (450) via a control interface. In one embodiment, the processor may control the first RFFE circuit (410) and the second RFFE circuit (450) to transmit an SRS through each of the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna. In one embodiment, the processor may control the first RFFE circuit (410) and the second RFFE circuit (450) to transmit an SRS through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of the wireless communication system.

[0111] In one embodiment, the first RFFE circuit (410) includes a controller (321) (e.g., the controller (321) of FIG. 3), a first PA (322) (e.g., the first PA (322) of FIG. 3), a second PA (323) (e.g., the second PA (323) of FIG. 3), a first switch (411), a second switch (412), a first duplexer (413), a second duplexer (414), a first filter (327) (e.g., the first filter (327) of FIG. 3), a first antenna switching circuit (415), a third switch (416), a first LNA (330) (e.g., the first LNA (330) of FIG. 3), a second LNA (331) (e.g., the second LNA (331) of FIG. 3), a third LNA (417), a fourth LNA (418), a fifth LNA (419), and / or may include a fourth switch (420).

[0112] In one embodiment, the first switch (411) may be used as a transmitting switch, and the second switch (412) may be used as a transmitting / receiving switch. In one embodiment, the third switch (416) may be used as a receiving switch. In one embodiment, the fourth switch (416) may be used as a receiving switch. For example, the first RFFE circuit (310) may be implemented as an LPAMID circuit. For example, the first antenna switching circuit (415) may be implemented as an ASM or a switch.

[0113] In one embodiment, the second RFFE circuit (450) may include a second antenna switching circuit (461), a second filter (462), a third filter (463), a fourth filter (464), a fifth filter (465), a sixth filter (466), a fifth switch (467), a sixth LNA (468), a seventh LNA (469), an eighth LNA (470), a ninth LNA (471), a tenth LNA (472), and / or a sixth switch (473). In addition, although not separately illustrated in FIG. 4, the second RFFE circuit (450) may include a third antenna switching circuit, and the third antenna switching circuit may transmit a third SRS transmitted from the second filter (462) through a third antenna, or transmit a fourth SRS transmitted from the second filter (462) through a fourth antenna, under the control of the processor.

[0114] In one embodiment, the fifth switch (467) can be used as a transmitting switch or a receiving switch. In one embodiment, the sixth switch (473) can be used as a receiving switch. As an example, the second RFFE circuit (450) can be implemented as an LNA / front-end module (FEM) (LFEM). As an example, the second antenna switching circuit (461) can be implemented as an ASM or a switch.

[0115] In one embodiment, the first switch (411) can electrically connect the first PA (322) to the first duplexer (413) or the second duplexer (414) under the control of the processor and / or RFIC (or under the control of the controller (321)).

[0116] In one embodiment, the second switch (412) may electrically connect the second PA (323) to the first filter (327) or the second filter (462) under the control of the processor and / or RFIC (or under the control of the controller (321)).

[0117] In one embodiment, the second antenna switching circuit (461) may electrically connect the second filter (462) to one of the second antenna (342), the third antenna, and / or the fourth antenna under control of the processor and / or RFIC (or under control of the controller (321)).

[0118] In one embodiment, the controller (321) can control components included in the first RFFE circuit (410) and the second RFFE circuit (450) via an interface (e.g., MIPI) with the processor and / or the RFIC. In one embodiment, the controller (321) can perform an antenna switching operation for SRS transmission under the control of the processor and / or the RFIC. The controller (321) can perform an antenna switching operation so that the SRS is transmitted through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of a wireless communication system (e.g., an NR system) under the control of the processor and / or the RFIC. The antenna switching operation is described as follows.

[0119] In one embodiment, the processor may cause the second switch (412) to electrically connect the second PA (323) to the first filter (327) so that the first SRS is transmitted through the first antenna (341). After the first SRS is transmitted, the processor may cause the second switch (412) to electrically connect the second PA (323) to the second filter (462) through the fifth switch (467) so that the second SRS output through the SRS out port is transmitted through the second antenna (342). After the second SRS is transmitted, the processor may cause the second switch (412) to electrically connect the second PA (323) to the second filter (462) through the fifth switch (467) so that the third SRS output through the SRS out port is transmitted through the third antenna. After the third SRS is transmitted, the processor can cause the second switch (412) to electrically connect the second PA (323) to the second filter (462) via the fifth switch (467), so that the fourth SRS output through the SRS out port can be transmitted through the fourth antenna.

[0120] In one embodiment, the first PA (322) may be a PA corresponding to a first frequency band (e.g., MB) (e.g., MB of an LTE system and / or MB of an NR system). In one embodiment, the first PA (322) may amplify an input signal of the first frequency band based on a set gain to generate an amplified signal. A signal output from the first PA (322) may be transmitted to the first duplexer (413) via the first switch (411).

[0121] In one embodiment, the second PA (323) may be a PA corresponding to a second frequency band (e.g., HB) (e.g., HB of an LTE system and / or HB of an NR system). In the embodiment, the second PA (322) may amplify an input signal of the second frequency band based on a set gain to generate an amplified signal. A signal output from the second PA (323) may be transmitted to the first filter (327) via the second switch (412).

[0122] In one embodiment, it is assumed that an EN-DC is formed for the electronic device (101). Since the EN-DC is formed for the electronic device (101), the electronic device (101) may be connected to an LTE network (e.g., an LTE base station) through, for example, a first frequency band (e.g., a B1 band, a B25 band, a B3 band, and / or a B66 band of an LTE system), and may be connected to an NR network (e.g., an NR base station) through a second frequency band (e.g., an N41 band of an NR system). In this case, the first duplexer (413) and the first filter (327) may be electrically connected to the first antenna switching circuit (415) through direct mapping.

[0123] In one embodiment, the electronic device (101) may transmit an SRS for an NR system. For example, the electronic device (101) may transmit the SRS through a first antenna (341), a second antenna (342), a third antenna, and / or a fourth antenna. The electronic device (101) may transmit the SRS through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of the NR system. For example, the electronic device (101) may transmit a first SRS through the first antenna (341), transmit a second SRS through the second antenna (342) after transmitting the first SRS, transmit a third SRS through the third antenna after transmitting the second SRS, and transmit a fourth SRS through the fourth antenna after transmitting the third SRS. This may be described in detail as follows.

[0124] In one embodiment, the controller (321) may control the second switch (412) to connect the second PA (323) to the first filter (327) to transmit the first SRS, under the control of the processor and / or RFIC. When the second switch (412) connects the second PA (323) to the first filter (327), the first SRS transmitted from the second PA (323) may be input to the first filter (327), and the first filter (327) may perform a filtering operation on the input first SRS and then transmit the first SRS to the first antenna switching circuit (415). The first antenna switching circuit (415) may transmit the first SRS transmitted through the first filter (327) to the first antenna (341), so that the first SRS is transmitted through the first antenna (341).

[0125] In one embodiment, after the first SRS is transmitted, the controller (321) may control the second switch (412) to electrically connect the second PA (323) to the second filter (462) via the fifth switch (467) to transmit the second SRS, under the control of the processor and / or RFIC. When the second switch (412) electrically connects the second PA (323) to the second filter (462) via the fifth switch (467), the second SRS transmitted from the second PA (323) may be input to the second filter (462), and the second filter (462) may perform a filtering operation on the input second SRS and then transmit the second SRS to the second antenna switching circuit (461). The second antenna switching circuit (461) can transmit the second SRS transmitted through the second filter (462) to the second antenna (342), thereby allowing the second SRS to be transmitted through the second antenna (342).

[0126] In one embodiment, after the second SRS is transmitted, the controller (321) may control the second switch (412) to electrically connect the second PA (323) to the second filter (462) via the fifth switch (467) to transmit the third SRS, under the control of the processor and / or RFIC. When the second switch (412) electrically connects the second PA (323) to the second filter (462) via the fifth switch (467), the third SRS transmitted from the second PA (323) may be input to the second filter (462), and the second filter (462) may perform a filtering operation on the input third SRS and then transmit the same to the second antenna switching circuit (461). The second antenna switching circuit (461) transmits the third SRS transmitted through the second filter (462) to the third antenna switching circuit, and the third antenna switching circuit can transmit the third SRS through the third antenna.

[0127] In one embodiment, after the third SRS is transmitted, the controller (321) may control the second switch (412) to electrically connect the second PA (323) to the second filter (462) via the fifth switch (467) to transmit the fourth SRS, under the control of the processor and / or RFIC. When the second switch (412) electrically connects the second PA (323) to the second filter (462) via the fifth switch (467), the fourth SRS transmitted from the second PA (323) may be input to the second filter (462), and the second filter (462) may perform a filtering operation on the input fourth SRS and then transmit the same to the second antenna switching circuit (461). The second antenna switching circuit (461) transmits the fourth SRS transmitted through the second filter (462) to the third antenna switching circuit, and the third antenna switching circuit can transmit the fourth SRS through the fourth antenna.

[0128] In one embodiment, the second filter (462) may include a filter for receiving other signals and may be used as a filter for transmitting the second SRS, the third SRS, or the fourth SRS via the fifth switch (467).

[0129] In one embodiment, a signal received through the first antenna (341) is transmitted to the first antenna switching circuit (415), and the first antenna switching circuit (415) can transmit the signal transmitted from the first antenna (341) to the first duplexer (413) or the second duplexer (414). The first duplexer (413) or the second duplexer (414) can perform a duplex operation on the signal transmitted from the first antenna switching circuit (415) and transmit it to the third switch (416). The third switch (416) can electrically connect one of the first duplexer (413) or the second duplexer (414) to one of the first LNA (330), the second LNA (331), the third LNA (417), the fourth LNA (418), or the fifth LNA (419) via the third switch (416) under the control of the controller (321) (or under the control of the processor and / or RFIC).

[0130] In one embodiment, when the first duplexer (413) or the second duplexer (414) is electrically connected to the first LNA (330), the first LNA (330) can amplify a signal transmitted from the first duplexer (413) or the second duplexer (414) based on a set gain and then transmit the signal to the RFIC through the fourth switch (420). When the first duplexer (413) or the second duplexer (414) is electrically connected to the second LNA (331), the second LNA (331) can amplify a signal transmitted from the first duplexer (413) or the second duplexer (414) based on a set gain and then transmit the signal to the RFIC through the fourth switch (420). When the first duplexer (413) or the second duplexer (414) is electrically connected to the third LNA (417), the third LNA (417) can amplify the signal transmitted from the first duplexer (413) or the second duplexer (414) based on a set gain and then transmit the signal to the RFIC through the fourth switch (420). When the first duplexer (413) or the second duplexer (414) is electrically connected to the fourth LNA (418), the fourth LNA (418) can amplify the signal transmitted from the first duplexer (413) or the second duplexer (414) based on a set gain and then transmit the signal to the RFIC through the fourth switch (420). When the first duplexer (413) or the second duplexer (414) is electrically connected to the fifth LNA (419), the fifth LNA (419) can amplify the signal transmitted from the first duplexer (413) or the second duplexer (414) based on a set gain and then transmit the signal to the RFIC through the fourth switch (420).

[0131] In one embodiment, a signal received through one of the second antenna (341), the third antenna, or the fourth antenna is transmitted to the second antenna switching circuit (461), and the second antenna switching circuit (461) can transmit the signal transmitted through one of the second antenna (341), the third antenna, or the fourth antenna to one of the second filter (462), the third filter (463), the fourth filter (464), the fifth filter (465), or the sixth filter (466).

[0132] In one embodiment, each of the second filter (462), the third filter (463), the fourth filter (464), the fifth filter (465), and the sixth filter (466) may perform a filtering operation on a signal transmitted from the second antenna switching circuit (461) and transmit the filtered signal to a corresponding LNA. For example, the second filter (462) may transmit the filtered signal to the sixth LNA (468), the third filter (463) may transmit the filtered signal to the seventh LNA (469), the fourth filter (464) may transmit the filtered signal to the eighth LNA (470), the fifth filter (465) may transmit the filtered signal to the ninth LNA (471), and the sixth filter (466) may transmit the filtered signal to the tenth LNA (472).

[0133] In one embodiment, the sixth LNA (468) may amplify a signal transmitted from the second filter (462) based on a set gain and then transmit the signal to the RFIC through the sixth switch (473). The seventh LNA (469) may amplify a signal transmitted from the third filter (463) based on a set gain and then transmit the signal to the RFIC through the sixth switch (473). The eighth LNA (470) may amplify a signal transmitted from the fourth filter (464) based on a set gain and then transmit the signal to the RFIC through the sixth switch (473). The ninth LNA (471) may amplify a signal transmitted from the fifth filter (465) based on a set gain and then transmit the signal to the RFIC through the sixth switch (473). The tenth LNA (472) may amplify a signal transmitted from the sixth filter (466) based on a set gain and then transmit the signal to the RFIC through the sixth switch (473).

[0134] FIG. 5 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0135] Referring to FIG. 5, an electronic device (101) (e.g., the electronic device (101) of FIG. 1, FIG. 3, or FIG. 4) (e.g., a smart phone) may include a first RFFE circuit (510), a second RFFE circuit (550), a first antenna (341) (e.g., the first antenna (341) of FIG. 3 or FIG. 4), a second antenna (342) (e.g., the second antenna (342) of FIG. 3 or FIG. 4), a third antenna (not shown in FIG. 5) (e.g., the third antenna (343) of FIG. 3), and / or a fourth antenna (not shown in FIG. 5) (e.g., the fourth antenna (344) of FIG. 3). In FIG. 5, an example is shown in which the electronic device (101) includes four antennas including a first antenna (341), a second antenna (342), a third antenna, and / or a fourth antenna, but there may be no limitation on the number of antennas included in the electronic device (101).

[0136] In one embodiment, the first RFFE circuit (510) and the second RFFE circuit (550) may operate under the control of a processor (not shown in FIG. 5) (e.g., the processor (120) of FIG. 1 or FIG. 3), which may include an application processor and / or a communication processor. According to one embodiment, the electronic device (101) may further include at least one of the components described in FIG. 1. According to one embodiment, the first RFFE circuit (510) and the second RFFE circuit (550) may form at least a portion of the wireless communication module (192) of FIG. 1. The processor may support the establishment of a communication channel in a band to be used for wireless communication with a cellular network (e.g., the second network (199) of FIG. 1), and network communication through the established communication channel. According to one embodiment, the cellular network may include a 2G network, a 3G network, a 4G network, an LTE network, and / or a 5G network.

[0137] In one embodiment, the processor may control the first RFFE circuit (510) and the second RFFE circuit (550) via a control interface. In one embodiment, the processor may control the first RFFE circuit (510) and the second RFFE circuit (550) to transmit an SRS through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna. In one embodiment, the processor may control the first RFFE circuit (510) and the second RFFE circuit (550) to transmit an SRS through the first antenna (341) and / or the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of the wireless communication system.

[0138] In one embodiment, the first RFFE circuit (510) includes a controller (321) (e.g., the controller (321) of FIG. 3 or FIG. 4), a first PA (322) (e.g., the first PA (322) of FIG. 3 or FIG. 4), a second PA (323) (e.g., the second PA (323) of FIG. 3 or FIG. 4), a first switch (411) (e.g., the first switch (411) of FIG. 4), a second switch (512), a first duplexer (413) (e.g., the first duplexer (413) of FIG. 4), a second duplexer (414) (e.g., the second duplexer (414) of FIG. 4), a first filter (327) (e.g., the first filter (327) of FIG. 3 or FIG. 4), a first antenna switching circuit (415) (e.g., the first antenna switching circuit (415) of FIG. 4), It may include a third switch (416) (e.g., the third switch (416) of FIG. 4), a first LNA (330) (e.g., the first LNA (330) of FIG. 3 or FIG. 4), a second LNA (331) (e.g., the second LNA (331) of FIG. 3 or FIG. 4), a third LNA (417) (e.g., the third LNA (417) of FIG. 4), a fourth LNA (418) (e.g., the fourth LNA (418) of FIG. 4), a fifth LNA (419) (e.g., the fifth LNA (419) of FIG. 4), and / or a fourth switch (420) (e.g., the fourth switch (420) of FIG. 4).

[0139] In one embodiment, the second RFFE circuit (550) includes a second antenna switching circuit (461) (e.g., the second antenna switching circuit (461) of FIG. 4), a seventh filter (462-1), a third filter (463) (e.g., the third filter (463) of FIG. 4), a fourth filter (464) (e.g., the fourth filter (464) of FIG. 4), a fifth filter (465) (e.g., the fifth filter (465) of FIG. 4), a sixth filter (466) (e.g., the sixth filter (466) of FIG. 4), a second filter (567), a sixth LNA (468) (e.g., the sixth LNA (468) of FIG. 4), a seventh LNA (469) (e.g., the seventh LNA (469) of FIG. 4), an eighth LNA (470) (e.g., the eighth LNA (470) of FIG. 4), and a ninth It may include an LNA (471) (e.g., the ninth LNA (471) of FIG. 4), a tenth LNA (472) (e.g., the tenth LNA (472) of FIG. 4), and / or a sixth switch (473) (e.g., the sixth switch (473) of FIG. 4). In addition, although not separately illustrated in FIG. 5, the second RFFE circuit (550) may include a third antenna switching circuit, and the third antenna switching circuit may transmit the third SRS transmitted from the second filter (567) through the third antenna, or transmit the fourth SRS transmitted from the second filter (567) through the fourth antenna, under the control of the processor.

[0140] In one embodiment, for the first RFFE circuit (510), the remaining components except for the second switch (512) may be implemented similarly or substantially identically to the components included in the first RFFE circuit (410) of FIG. 4, and therefore, a detailed description of the remaining components except for the second switch (512) will be omitted.

[0141] In the case of the second RFFE circuit (550), the remaining components except for the second filter (567) can be implemented similarly or substantially identically to the components included in the second RFFE circuit (450) of FIG. 4, and therefore, a detailed description of the remaining components except for the second filter (567) will be omitted.

[0142] In one embodiment, the second switch (512) may electrically connect the second PA (323) to the first filter (327) or the second filter (567) under the control of the processor and / or RFIC (or under the control of the controller (321)).

[0143] In one embodiment, the second antenna switching circuit (461) may electrically connect the second filter (567) to one of the second antenna (342), the third antenna, and / or the fourth antenna under control of the processor and / or RFIC (or under control of the controller (321)).

[0144] In one embodiment, the controller (321) can control components included in the first RFFE circuit (510) and the second RFFE circuit (550) via an interface (e.g., MIPI) with the processor and / or the RFIC. In one embodiment, the controller (321) can perform an antenna switching operation for SRS transmission under the control of the processor and / or the RFIC. The controller (321) can perform an antenna switching operation so that the SRS is transmitted through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of a wireless communication system (e.g., an NR system) under the control of the processor and / or the RFIC. The antenna switching operation is described as follows.

[0145] In one embodiment, the processor may cause the second switch (512) to electrically connect the second PA (323) to the first filter (327) so that the first SRS is transmitted through the first antenna (341). After the first SRS is transmitted, the processor may cause the second switch (512) to electrically connect the second PA (323) to the second filter (567) so that the second SRS output through the SRS out port is transmitted through the second antenna (342). After the second SRS is transmitted, the processor may cause the second switch (512) to electrically connect the second PA (323) to the second filter (567) so that the third SRS output through the SRS out port is transmitted through the third antenna. After the third SRS is transmitted, the processor can cause the second switch (512) to electrically connect the second PA (323) to the second filter (567), so that the fourth SRS output through the SRS out port is transmitted through the fourth antenna.

[0146] In one embodiment, it is assumed that EN-DC is implemented for the electronic device (101). Since EN-DC is implemented for the electronic device (101), the electronic device (101) may be connected to an LTE network (e.g., an LTE base station) via, for example, a first frequency band (e.g., a B1 band, a B25 band, a B3 band, and / or a B66 band of an LTE system) and may be connected to an NR network (e.g., an NR base station) via a second frequency band (e.g., an N41 band of an NR system). In this case, the first duplexer (413) and the first filter (327) may be connected to the first antenna switching circuit (415) via direct mapping.

[0147] In one embodiment, the electronic device (101) can transmit an SRS for an NR system. The electronic device (101) can transmit the SRS through a first antenna (341), a second antenna (342), a third antenna, and / or a fourth antenna. The electronic device (101) can transmit the SRS through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of the NR system. For example, the electronic device (101) can transmit a first SRS through the first antenna (341), transmit a second SRS through the second antenna (342) after transmitting the first SRS, transmit a third SRS through the third antenna after transmitting the second SRS, and transmit a fourth SRS through the fourth antenna after transmitting the third SRS. This can be described in detail as follows.

[0148] In one embodiment, the controller (321) may control the second switch (512) to electrically connect the second PA (323) to the first filter (327) to transmit the first SRS, under the control of the processor and / or RFIC. When the second switch (512) electrically connects the second PA (323) to the first filter (327), the first SRS transmitted from the second PA (323) may be input to the first filter (327), and the first filter (327) may perform a filtering operation on the input first SRS and then transmit the first SRS to the first antenna switching circuit (415). The first antenna switching circuit (415) may transmit the first SRS transmitted through the first filter (327) to the first antenna (341), so that the first SRS is transmitted through the first antenna (341).

[0149] In one embodiment, after the first SRS is transmitted, the controller (321) may control the second switch (512) to electrically connect the second PA (323) to the second filter (567) to transmit the second SRS, under the control of the processor and / or RFIC. When the second switch (412) electrically connects the second PA (323) to the second filter (567), the second SRS transmitted from the second PA (323) may be input to the second filter (567), and the second filter (567) may perform a filtering operation on the input second SRS and then transmit the second SRS to the second antenna switching circuit (461). The second antenna switching circuit (461) may transmit the second SRS transmitted through the second filter (567) to the second antenna (342), so that the second SRS is transmitted through the second antenna (342).

[0150] In one embodiment, after the second SRS is transmitted, the controller (321) may control the second switch (412) to electrically connect the second PA (323) to the second filter (567) to transmit the third SRS, under the control of the processor and / or RFIC. When the second switch (412) electrically connects the second PA (323) to the second filter (567), the third SRS transmitted from the second PA (323) may be input to the second filter (567), and the second filter (567) may perform a filtering operation on the input third SRS and then transmit it to the second antenna switching circuit (461). The second antenna switching circuit (461) may input the third SRS transmitted through the second filter (567) and transmit it to the third antenna switching circuit, and the third antenna switching circuit may transmit the third SRS through the third antenna.

[0151] In one embodiment, after the third SRS is transmitted, the controller (321) may control the second switch (512) to electrically connect the second PA (323) to the second filter (567) to transmit the fourth SRS, under the control of the processor and / or RFIC. When the second switch (512) electrically connects the second PA (323) to the second filter (567), the fourth SRS transmitted from the second PA (323) may be input to the second filter (567), and the second filter (567) may perform a filtering operation on the input fourth SRS and then transmit it to the second antenna switching circuit (461). The second antenna switching circuit (461) may input the fourth SRS transmitted through the second filter (567) and transmit it to the third antenna switching circuit, and the third antenna switching circuit may transmit the fourth SRS through the fourth antenna.

[0152] In one embodiment, the second filter (567) may include a filter dedicated to transmission of the second SRS, the third SRS, and / or the fourth SRS.

[0153] FIG. 6 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0154] Referring to FIG. 6, an electronic device (101) (e.g., the electronic device (101) of FIG. 1, FIG. 3, FIG. 4, or FIG. 5) (e.g., a smart phone) may include a first RFFE circuit (610), a second RFFE circuit (650), a first antenna (341) (e.g., the first antenna (341) of FIG. 3, FIG. 4, or FIG. 5), a second antenna (342) (e.g., the second antenna (342) of FIG. 3, FIG. 4, or FIG. 5), a third antenna (not shown in FIG. 6) (e.g., the third antenna (343) of FIG. 3), and / or a fourth antenna (not shown in FIG. 6) (e.g., the fourth antenna (344) of FIG. 3). In FIG. 6, an example is shown in which the electronic device (101) includes four antennas including a first antenna (341), a second antenna (342), a third antenna, and / or a fourth antenna, but there may be no limitation on the number of antennas included in the electronic device (101).

[0155] In one embodiment, the first RFFE circuit (610) and the second RFFE circuit (650) may operate under the control of a processor (not shown in FIG. 6) (e.g., the processor (120) of FIG. 1 or FIG. 3), which may include an application processor and / or a communication processor. According to one embodiment, the electronic device (101) may further include at least one of the components described in FIG. 1. According to one embodiment, the first RFFE circuit (610) and the second RFFE circuit (650) may form at least a portion of the wireless communication module (192) of FIG. 1. The processor may support the establishment of a communication channel in a band to be used for wireless communication with a cellular network (e.g., the second network (199) of FIG. 1), and network communication through the established communication channel. According to one embodiment, the cellular network may include a 2G network, a 3G network, a 4G network, an LTE network, and / or a 5G network.

[0156] In one embodiment, the processor can control the first RFFE circuit (610) and the second RFFE circuit (650) via a control interface. In one embodiment, the processor can control the first RFFE circuit (610) and the second RFFE circuit (650) to transmit the SRS through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna. In one embodiment, the processor can control the first RFFE circuit (610) and the second RFFE circuit (650) to transmit the SRS through the first antenna (341) and / or the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of the wireless communication system.

[0157] In one embodiment, the first RFFE circuit (610) includes a controller (321) (e.g., the controller (321) of FIG. 3, FIG. 4, or FIG. 5), a first PA (322) (e.g., the first PA (322) of FIG. 3, FIG. 4, or FIG. 5), a second PA (323) (e.g., the second PA (323) of FIG. 3, FIG. 4, or FIG. 5), a first switch (411) (e.g., the first switch (411) of FIG. 4 or FIG. 5), a second switch (612) (e.g., the second switch (412) of FIG. 4 or FIG. 5), a first duplexer (413) (e.g., the first duplexer (413) of FIG. 4 or FIG. 5), a second duplexer (414) (e.g., the second duplexer (414) of FIG. 4 or FIG. 5), a first A filter (327) (e.g., the first filter (327) of FIG. 3, FIG. 4, or ), a first antenna switching circuit (415) (e.g., the first antenna switching circuit (415) of FIG. 4 or FIG. 5), a third switch (416) (e.g., the third switch (416) of FIG. 4 or FIG. 5), a first LNA (330) (e.g., the first LNA (330) of FIG. 3, FIG. 4, or FIG. 5), a second LNA (331) (e.g., the second LNA (331) of FIG. 3, FIG. 4, or FIG. 5), a third LNA (417) (e.g., the third LNA (417) of FIG. 4 or FIG. 5), a fourth LNA (418) (e.g., the fourth LNA (418) of FIG. 4 or FIG. 5), a fifth LNA (419) (e.g., the fifth LNA (419) of FIG. 4 or FIG. 5 LNA (419)), a fourth switch (420) (e.g., the fourth switch (420) of FIG. 4 or FIG. 5), and / or a second filter (641).

[0158] In one embodiment, the second RFFE circuit (650) includes a second antenna switching circuit (461) (e.g., the second antenna switching circuit (461) of FIG. 4 or 5), a seventh filter (462-1), a third filter (463) (e.g., the third filter (463) of FIG. 4 or 5), a fourth filter (464) (e.g., the fourth filter (464) of FIG. 4 or 5), a fifth filter (465) (e.g., the fifth filter (465) of FIG. 4 or 5), a sixth filter (466) (e.g., the sixth filter (466) of FIG. 4 or 5), a sixth LNA (468) (e.g., the sixth LNA (468) of FIG. 4 or 5), a seventh LNA (469) (e.g., the seventh LNA (469) of FIG. 4 or 5), an eighth LNA (470) (e.g., The second RFFE circuit (650) may include a third antenna switching circuit, and the third antenna switching circuit may transmit the third SRS transmitted from the second filter (641) through the third antenna, or transmit the fourth SRS transmitted from the second filter (641) through the fourth antenna, under the control of the processor.

[0159] In one embodiment, for the first RFFE circuit (610), the remaining components except for the second switch (612) may be implemented similarly or substantially identically to the components included in the first RFFE circuit (410) of FIG. 4, and therefore, a detailed description of the remaining components except for the second switch (612) and the second filter (641) will be omitted.

[0160] In one embodiment, the second RFFE circuit (650) may be implemented similarly or substantially identically to the second RFFE circuit (450) of FIG. 4, and therefore, a detailed description of the second RFFE circuit (650) will be omitted.

[0161] In one embodiment, the second switch (612) may electrically connect the second PA (323) to the first filter (327) or the second filter (641) under the control of the processor and / or RFIC (or under the control of the controller (321)).

[0162] In one embodiment, the second antenna switching circuit (461) may electrically connect the second filter (641) to one of the second antenna (342), the third antenna, and / or the fourth antenna under control of the processor and / or RFIC (or under control of the controller (321)).

[0163] In one embodiment, the controller (321) can control components included in the first RFFE circuit (610) and the second RFFE circuit (650) via an interface (e.g., MIPI) with the processor and / or the RFIC. In one embodiment, the controller (321) can perform an antenna switching operation for SRS transmission under the control of the processor and / or the RFIC. The controller (321) can perform an antenna switching operation so that the SRS is transmitted through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of a wireless communication system (e.g., an NR system) under the control of the processor and / or the RFIC. The antenna switching operation is described as follows.

[0164] In one embodiment, the processor may cause the second switch (612) to electrically connect the second PA (323) to the first filter (327) so that the first SRS is transmitted through the first antenna (341). After the first SRS is transmitted, the processor may cause the second switch (612) to electrically connect the second PA (323) to the second filter (641) so that the second SRS output through the SRS out port is transmitted through the second antenna (342). After the second SRS is transmitted, the processor may cause the second switch (612) to electrically connect the second PA (323) to the second filter (641) so that the third SRS output through the SRS out port is transmitted through the third antenna. After the third SRS is transmitted, the processor can cause the second switch (612) to electrically connect the second PA (323) to the second filter (641), so that the fourth SRS output through the SRS out port is transmitted through the fourth antenna.

[0165] In one embodiment, it is assumed that EN-DC is implemented for the electronic device (101). Since EN-DC is implemented for the electronic device (101), the electronic device (101) may be connected to an LTE network (e.g., an LTE base station) via, for example, a first frequency band (e.g., a B1 band, a B25 band, a B3 band, and / or a B66 band of an LTE system) and may be connected to an NR network (e.g., an NR base station) via a second frequency band (e.g., an N41 band of an NR system). In this case, the first duplexer (412) and the first filter (327) may be connected to the first antenna switching circuit (415) via direct mapping.

[0166] In one embodiment, the electronic device (101) can transmit an SRS for an NR system. The electronic device (101) can transmit the SRS through a first antenna (341), a second antenna (342), a third antenna, and / or a fourth antenna. The electronic device (101) can transmit the SRS through the first antenna (341), the second antenna (342), the third antenna, and / or the fourth antenna based on a slot structure of the NR system. For example, the electronic device (101) can transmit a first SRS through the first antenna (341), transmit a second SRS through the second antenna (342) after transmitting the first SRS, transmit a third SRS through the third antenna after transmitting the second SRS, and transmit a fourth SRS through the fourth antenna after transmitting the third SRS. This can be described in detail as follows.

[0167] In one embodiment, the controller (321) may control the second switch (612) to electrically connect the second PA (323) to the first filter (327) to transmit the first SRS, under the control of the processor and / or RFIC. When the second switch (512) electrically connects the second PA (323) to the first filter (327), the first SRS transmitted from the second PA (323) may be input to the first filter (327), and the first filter (327) may perform a filtering operation on the input first SRS and then transmit the first SRS to the first antenna switching circuit (415). The first antenna switching circuit (415) may transmit the first SRS transmitted through the first filter (327) to the first antenna (341), so that the first SRS is transmitted through the first antenna (341).

[0168] In one embodiment, after the first SRS is transmitted, the controller (321) may control the second switch (612) to electrically connect the second PA (323) to the second filter (641) to transmit the second SRS, under the control of the processor and / or RFIC. When the second switch (612) electrically connects the second PA (323) to the second filter (641), the second SRS transmitted from the second PA (323) may be input to the second filter (641), and the second filter (641) may perform a filtering operation on the input second SRS and then transmit the second SRS to the second antenna switching circuit (461). The second antenna switching circuit (461) may transmit the second SRS transmitted through the second filter (641) to the second antenna (342), so that the second SRS is transmitted through the second antenna (342).

[0169] In one embodiment, after the second SRS is transmitted, the controller (321) may control the second switch (612) to electrically connect the second PA (323) to the second filter (641) to transmit the third SRS, under the control of the processor and / or RFIC. When the second switch (612) electrically connects the second PA (323) to the second filter (641), the third SRS transmitted from the second PA (323) may be input to the second filter (641), and the second filter (641) may perform a filtering operation on the input third SRS and then transmit the same to the second antenna switching circuit (461). The second antenna switching circuit (461) may input the third SRS transmitted through the second filter (641) and transmit the same to the third antenna switching circuit, and the third antenna switching circuit may transmit the third SRS through the third antenna.

[0170] In one embodiment, after the third SRS is transmitted, the controller (321) may control the second switch (612) to electrically connect the second PA (323) to the second filter (641) to transmit the fourth SRS, under the control of the processor and / or RFIC. When the second switch (612) electrically connects the second PA (323) to the second filter (641), the fourth SRS transmitted from the second PA (323) may be input to the second filter (641), and the second filter (641) may perform a filtering operation on the input fourth SRS and then transmit it to the second antenna switching circuit (461). The second antenna switching circuit (461) may input the fourth SRS transmitted through the second filter (641) and transmit it to the third antenna switching circuit, and the third antenna switching circuit may transmit the fourth SRS through the fourth antenna.

[0171] In one embodiment, the second filter (641) may include a filter dedicated to transmission of the second SRS, the third SRS, and / or the fourth SRS.

[0172] FIG. 7A is a block diagram schematically illustrating an electronic device according to one embodiment.

[0173] FIG. 7b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0174] Referring to FIGS. 7A and 7B, an electronic device (101) (e.g., the electronic device (101) of FIG. 1, FIG. 3, FIG. 4, FIG. 5, or FIG. 6) (e.g., a smart phone) includes a processor (120) (e.g., the processor (120) of FIG. 1 or FIG. 3), an RFIC (300) (e.g., the RFIC (300) of FIG. 3), a first RFFE circuit (410) (e.g., the first RFFE circuit (410) of FIG. 4), a second RFFE circuit (450) (e.g., the second RFFE circuit (450) of FIG. 4), a third RFFE circuit (710), a fourth RFFE circuit (750), a first antenna (341) (e.g., the first antenna (341) of FIG. 3, FIG. 4, FIG. 5, or FIG. 6), a second antenna (342) (e.g., the first antenna (341) of FIG. 3, FIG. 4, FIG. 5, or FIG. 6 may include a second antenna (342) of the first antenna (341), a third antenna (343) (e.g., the third antenna (343) of FIG. 3), and / or a fourth antenna (344) (e.g., the fourth antenna (344) of FIG. 3). In FIGS. 7A and 7B , an example is shown where the electronic device (101) includes four antennas including the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344), but there may be no limitation on the number of antennas included in the electronic device (101).

[0175] In one embodiment, the first RFFE circuit (410), the second RFFE circuit (450), the third RFFE circuit (710), and / or the fourth RFFE circuit (750) may operate under the control of the processor (120), which may include an application processor and / or a communication processor. According to one embodiment, the electronic device (101) may further include at least one of the components described in FIG. 1. According to one embodiment, the first RFFE circuit (410), the second RFFE circuit (450), the third RFFE circuit (710), and / or the fourth RFFE circuit (750) may form at least a part of the wireless communication module (192) of FIG. 1. The processor (120) may support the establishment of a communication channel in a band to be used for wireless communication with a cellular network (e.g., the second network (199) of FIG. 1), and network communication through the established communication channel. According to one embodiment, the cellular network may include a 2G network, a 3G network, a 4G network, an LTE network, and / or a 5G network.

[0176] In one embodiment, the processor (120) can control the first RFFE circuit (410), the second RFFE circuit (450), the third RFFE circuit (710), and / or the fourth RFFE circuit (750) via a control interface. In one embodiment, the processor (120) can control the first RFFE circuit (410), the second RFFE circuit (450), the third RFFE circuit (710), and the fourth RFFE circuit (750) to transmit SRS via the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344). In one embodiment, the processor (120) may control the first RFFE circuit (410), the second RFFE circuit (450), the third RFFE circuit (710), and the fourth RFFE circuit (750) to transmit SRS through the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344) based on the slot structure of the wireless communication system.

[0177] In one embodiment, the first RFFE circuit (410) and the second RFFE circuit (450) may be implemented similarly or substantially identically to the first RFFE circuit (410) and the second RFFE circuit (450) of FIG. 4, and thus, a detailed description thereof will be omitted. However, in FIG. 4, the case where the third antenna switching circuit transmits the third SRS through the third antenna (343) and the fourth SRS through the fourth antenna (343) is described, but in FIG. 7b, the electronic device (101) may additionally include the third RFFE circuit (710) and the fourth RFFE circuit (750) to transmit the third SRS and / or the fourth SRS.

[0178] In one embodiment, the third RFFE circuit (710) may include a controller (711), a third PA (712), a fourth PA (713), a seventh switch (714), an eighth switch (715), a third duplexer (716), a fourth duplexer (717), a seventh filter (726), a third antenna switching circuit (718), a ninth switch (719), an eleventh LNA (720), a twelfth LNA (721), a thirteenth LNA (722), a fourteenth LNA (723), a fifteenth LNA (724), and / or a tenth switch (725).

[0179] In one embodiment, the seventh switch (714) and / or the eighth switch (715) may be used as a transmitting switch. In one embodiment, the ninth switch (719) may be used as a receiving switch. In one embodiment, the tenth switch (725) may be used as a receiving switch. As an example, the third RFFE circuit (710) may be implemented as an LPAMID circuit. As an example, the third antenna switching circuit (718) may be implemented as an ASM or a switch.

[0180] In one embodiment, the fourth RFFE circuit (750) may include a fourth antenna switching circuit (751), an eighth filter (752), a ninth filter (753), a tenth filter (754), an eleventh filter (755), a twelfth filter (756), an eleventh switch (757), a sixteenth LNA (758), a seventeenth LNA (759), an eighteenth LNA (760), a nineteenth LNA (761), a twentieth LNA (762), and / or a twelfth switch (763).

[0181] In one embodiment, the eleventh switch (757) can be used as a transmitting switch or a receiving switch. In one embodiment, the twelfth switch (763) can be used as a receiving switch. For example, the fourth RFFE circuit (750) can be implemented as an LFEM. For example, the fourth antenna switching circuit (751) can be implemented as an ASM or a switch.

[0182] In one embodiment, the seventh switch (714) may connect the third PA (712) to the third duplexer (716) or the fourth duplexer (717) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (711)).

[0183] In one embodiment, the eighth switch (715) may electrically connect the SRS in port or the fourth PA (713) to the seventh filter (726) or the eighth filter (752) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (711)).

[0184] In one embodiment, the third antenna switching circuit (718) may electrically connect the seventh filter (726) to the third antenna (343) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (711)).

[0185] In one embodiment, the controller (711) may control components included in the third RFFE circuit (710) and the fourth RFFE circuit (750) via an interface (e.g., MIPI) with the processor (120) and / or the RFIC (300). In one embodiment, the controller (711) may perform an antenna switching operation for SRS transmission under the control of the processor (120) and / or the RFIC (300). The controller (711) may perform an antenna switching operation so that the SRS is transmitted through the third antenna (343) and / or the fourth antenna (344) based on a slot structure of a wireless communication system (e.g., an NR system) under the control of the processor (120) and / or the RFIC (300). The antenna switching operation is described as follows.

[0186] In one embodiment, the processor (120) may connect the eighth switch (715) to the seventh filter (726) so that the third SRS input to the SRS in port is transmitted through the third antenna (343). After the third SRS is transmitted, the processor (120) may connect the eighth switch (715) to the eighth filter (752) so that the fourth SRS input to the SRS in port is transmitted through the fourth antenna (344).

[0187] In one embodiment, the third PA (712) may be a PA corresponding to the first frequency band (e.g., MB) (e.g., MB of an LTE system and / or MB of an NR system). In one embodiment, the third PA (712) may amplify an input signal of the first frequency band based on a set gain to generate an amplified signal. A signal output from the third PA (712) may be transmitted to the third duplexer (716) via the seventh switch (714).

[0188] In one embodiment, the fourth PA (713) may be a PA corresponding to a second frequency band (e.g., HB) (e.g., HB of an LTE system and / or HB of an NR system). In one embodiment, the fourth PA (713) may amplify an input signal of the second frequency band based on a set gain to generate an amplified signal. A signal output from the fourth PA (713) may be transmitted to the eighth filter (752) via the eleventh switch (757).

[0189] In one embodiment, it is assumed that EN-DC is implemented for the electronic device (101). Since EN-DC is implemented for the electronic device (101), the electronic device (101) may be connected to an LTE network (e.g., an LTE base station) through a first frequency band (e.g., a B1 band, a B25 band, a B3 band, and / or a B66 band of an LTE system), for example, and may be connected to an NR network (e.g., an NR base station) through a second frequency band (e.g., an N41 band of an NR system). In this case, the third duplexer (716) and the seventh filter (726) may be connected to the third antenna switching circuit (718) through direct mapping.

[0190] In one embodiment, the operations of the third RFFE circuit (710) and the fourth RFFE circuit (750) may be implemented similarly or substantially identically to the operations of the first RFFE circuit (410) and the second RFFE circuit (450), respectively, and thus, a detailed description thereof will be omitted herein. However, the first SRS and the second SRS may be transmitted in the first RFFE circuit (410) and the second RFFE circuit (450), and the third SRS and the fourth SRS may be transmitted in a similar manner in the third RFFE circuit (710) and the fourth RFFE circuit (750).

[0191] FIG. 8A is a block diagram schematically illustrating an electronic device according to one embodiment.

[0192] FIG. 8b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0193] Referring to FIGS. 8A and 8B, an electronic device (101) (e.g., the electronic device (101) of FIGS. 1, 3, 4, 5, 6, or 7 and 7B) (e.g., a smart phone) includes a processor (120) (e.g., the processor (120) of FIG. 1, 3, or 7A), an RFIC (300) (e.g., the RFIC (300) of FIG. 3), a first RFFE circuit (510) (e.g., the first RFFE circuit (510) of FIG. 5), a second RFFE circuit (550) (e.g., the second RFFE circuit (550) of FIG. 5), a third RFFE circuit (810), a fourth RFFE circuit (850), a first antenna (341) (e.g., the first antenna (341) of FIG. 3, 4, 5, 6, or 7A), a second The electronic device (101) may include an antenna (342) (e.g., the second antenna (342) of FIG. 3, FIG. 4, FIG. 5, FIG. 6, or FIG. 7A), a third antenna (e.g., the third antenna (343) of FIG. 3 or FIG. 7B), and / or a fourth antenna (e.g., the fourth antenna (344) of FIG. 3 or FIG. 7B). In FIGS. 8A and 8B , an example is shown where the electronic device (101) includes four antennas including the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344), but there may be no limitation on the number of antennas included in the electronic device (101).

[0194] In one embodiment, the first RFFE circuit (510), the second RFFE circuit (550), the third RFFE circuit (810), and the fourth RFFE circuit (850) may operate under the control of the processor (120), which may include an application processor and / or a communication processor. According to one embodiment, the electronic device (101) may further include at least one of the components described in FIG. 1. According to one embodiment, the first RFFE circuit (510), the second RFFE circuit (550), the third RFFE circuit (810), and / or the fourth RFFE circuit (850) may form at least a part of the wireless communication module (192) of FIG. 1. The processor (120) may support the establishment of a communication channel in a band to be used for wireless communication with a cellular network (e.g., the second network (199) of FIG. 1), and network communication through the established communication channel. According to one embodiment, the cellular network may include a 2G network, a 3G network, a 4G network, an LTE network, and / or a 5G network.

[0195] In one embodiment, the processor (120) can control the first RFFE circuit (510), the second RFFE circuit (550), the third RFFE circuit (810), and / or the fourth RFFE circuit (850) via a control interface. In one embodiment, the processor (120) can control the first RFFE circuit (510), the second RFFE circuit (550), the third RFFE circuit (810), and / or the fourth RFFE circuit (850) to transmit an SRS via the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344). In one embodiment, the processor (120) may control the first RFFE circuit (510), the second RFFE circuit (550), the third RFFE circuit (810), and the fourth RFFE circuit (850) to transmit SRS through the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344) based on the slot structure of the wireless communication system.

[0196] In one embodiment, the first RFFE circuit (510) and the second RFFE circuit (550) may be implemented similarly or substantially identically to the first RFFE circuit (510) and the second RFFE circuit (550) of FIG. 5, and thus, a detailed description thereof will be omitted. However, in FIG. 5, the case where the third antenna switching circuit transmits the third SRS through the third antenna (343) and the fourth SRS through the fourth antenna (343) is described, but in FIG. 8b, the electronic device (101) may additionally include the third RFFE circuit (810) and the fourth RFFE circuit (850) to transmit the third SRS and the fourth SRS.

[0197] In one embodiment, the third RFFE circuit (810) may include a controller (811), a third PA (812), a fourth PA (813), a sixth switch (814), a seventh switch (815), a third duplexer (816), a fourth duplexer (817), an eighth filter (826), a third antenna switching circuit (818), an eighth switch (819), an eleventh LNA (820), a twelfth LNA (821), a thirteenth LNA (822), a fourteenth LNA (823), a fifteenth LNA (824), and / or a ninth switch (825).

[0198] In one embodiment, the sixth switch (814) and / or the seventh switch (815) may be used as a transmitting switch. In one embodiment, the eighth switch (819) may be used as a receiving switch. In one embodiment, the ninth switch (825) may be used as a receiving switch. As an example, the third RFFE circuit (810) may be implemented as an LPAMID circuit. As an example, the third antenna switching circuit (818) may be implemented as an ASM or a switch.

[0199] In one embodiment, the fourth RFFE circuit (850) may include a fourth antenna switching circuit (851), a ninth filter (852), a tenth filter (853), an eleventh filter (854), a twelfth filter (855), a thirteenth filter (856), a fourteenth filter (857), a sixteenth LNA (858), a seventeenth LNA (859), an eighteenth LNA (860), a nineteenth LNA (861), a twentieth LNA (862), and / or a tenth switch (863).

[0200] In one embodiment, the tenth switch (863) may be used as a receiving switch. For example, the fourth RFFE circuit (850) may be implemented as an LFEM. For example, the fourth antenna switching circuit (851) may be implemented as an ASM or a switch.

[0201] In one embodiment, the sixth switch (814) may electrically connect the third PA (812) to the third duplexer (816) or the fourth duplexer (817) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (811)).

[0202] In one embodiment, the seventh switch (815) may electrically connect the SRS in port or the fourth PA (813) to the eighth filter (826) or the fourteenth filter (857) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (811)).

[0203] In one embodiment, the third antenna switching circuit (818) may electrically connect the eighth filter (826) to the third antenna (343) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (811)).

[0204] In one embodiment, the controller (811) may control components included in the third RFFE circuit (810) and the fourth RFFE circuit (850) via an interface (e.g., MIPI) with the processor (120) and / or the RFIC (300). In one embodiment, the controller (811) may perform an antenna switching operation for SRS transmission under the control of the processor (120) and / or the RFIC (300). The controller (811) may perform an antenna switching operation so that the SRS is transmitted through the third antenna (343) and / or the fourth antenna (344) based on a slot structure of a wireless communication system (e.g., an NR system) under the control of the processor (120) and / or the RFIC (300). The antenna switching operation is described as follows.

[0205] In one embodiment, the processor (120) may connect the seventh switch (815) to the eighth filter (826) so that the third SRS input to the SRS in port is transmitted through the third antenna (343). After the third SRS is transmitted, the processor (120) may connect the seventh switch (815) to the fourteenth filter (857) so that the fourth SRS input to the SRS in port is transmitted through the fourth antenna (344).

[0206] In one embodiment, the third PA (812) may be a PA corresponding to the first frequency band (e.g., MB) (e.g., MB of an LTE system and / or MB of an NR system). In one embodiment, the third PA (812) may amplify an input signal of the first frequency band based on a set gain to generate an amplified signal. A signal output from the third PA (812) may be transmitted to the third duplexer (816) via the sixth switch (814).

[0207] In one embodiment, the fourth PA (813) may be a PA corresponding to a second frequency band (e.g., HB) (e.g., HB of an LTE system and / or HB of an NR system). In one embodiment, the fourth PA (813) may amplify an input signal of the second frequency band based on a set gain to generate an amplified signal. A signal output from the fourth PA (813) may be transmitted to the fourteenth filter (857).

[0208] In one embodiment, it is assumed that EN-DC is implemented for the electronic device (101). Since EN-DC is implemented for the electronic device (101), the electronic device (101) may be connected to an LTE network (e.g., an LTE base station) through, for example, a first frequency band (e.g., a B1 band, a B25 band, a B3 band, and / or a B66 band of an LTE system) and may be connected to an NR network (e.g., an NR base station) through a second frequency band (e.g., an N41 band of an NR system). In this case, the third duplexer (816) and the eighth filter (826) may be connected to the third antenna switching circuit (818) through direct mapping.

[0209] FIG. 9A is a block diagram schematically illustrating an electronic device according to one embodiment.

[0210] FIG. 9b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0211] Referring to FIGS. 9A and 9B, an electronic device (101) (e.g., the electronic device (101) of FIGS. 1, 3, 4, 5, 6, 7a and 7b, or 8a and 8b) (e.g., a smart phone) includes a processor (120) (e.g., the processor (120) of FIG. 1, 3, 7a, or 8a), an RFIC (300) (e.g., the RFIC (300) of FIG. 3 or 7a), a first RFFE circuit (610) (e.g., the first RFFE circuit (610) of FIG. 6), a second RFFE circuit (650) (e.g., the second RFFE circuit (650) of FIG. 6), a third RFFE circuit (910), a fourth RFFE circuit (950), a first antenna (341) (e.g., the processor (120) of FIG. 1, 3, 5, or 8a), 6, FIG. 7A, or FIG. 8A), a second antenna (342) (e.g., the second antenna (342) of FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7A, or FIG. 8A), a third antenna (e.g., the third antenna (343) of FIG. 3, FIG. 7B, or FIG. 8B), and / or a fourth antenna (e.g., the fourth antenna (344) of FIG. 3, FIG. 7B, or FIG. 8B). In FIGS. 9A and 9B, an example is shown where the electronic device (101) includes four antennas including the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344), but there may be no limitation on the number of antennas included in the electronic device (101).

[0212] In one embodiment, the first RFFE circuit (610), the second RFFE circuit (650), the third RFFE circuit (910), and / or the fourth RFFE circuit (950) may operate under the control of the processor (120), which may include an application processor and / or a communication processor. According to one embodiment, the electronic device (101) may further include at least one of the components described in FIG. 1. According to one embodiment, the first RFFE circuit (610), the second RFFE circuit (650), the third RFFE circuit (910), and / or the fourth RFFE circuit (950) may form at least a part of the wireless communication module (192) of FIG. 1. The processor (120) may support the establishment of a communication channel in a band to be used for wireless communication with a cellular network (e.g., the second network (199) of FIG. 1), and network communication through the established communication channel. According to one embodiment, the cellular network may include a 2G network, a 3G network, a 4G network, an LTE network, and / or a 5G network.

[0213] In one embodiment, the processor (120) can control the first RFFE circuit (610), the second RFFE circuit (650), the third RFFE circuit (910), and / or the fourth RFFE circuit (950) via a control interface. In one embodiment, the processor (120) can control the first RFFE circuit (610), the second RFFE circuit (650), the third RFFE circuit (910), and the fourth RFFE circuit (950) to transmit SRS via the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344). In one embodiment, the processor (120) may control the first RFFE circuit (610), the second RFFE circuit (650), the third RFFE circuit (910), and the fourth RFFE circuit (950) to transmit SRS through the first antenna (341), the second antenna (342), the third antenna (343), and / or the fourth antenna (344) based on the slot structure of the wireless communication system.

[0214] In one embodiment, the first RFFE circuit (610) and the second RFFE circuit (650) may be implemented similarly or substantially identically to the first RFFE circuit (610) and the second RFFE circuit (650) of FIG. 6, and thus, a detailed description thereof will be omitted. However, in FIG. 6, the case where the third antenna switching circuit transmits the third SRS through the third antenna (343) and the fourth SRS through the fourth antenna (343) is described, but in FIG. 9b, the electronic device (101) may additionally include the third RFFE circuit (910) and the fourth RFFE circuit (950) to transmit the third SRS and the fourth SRS.

[0215] In one embodiment, the third RFFE circuit (910) may include a controller (911), a third PA (912), a fourth PA (913), a sixth switch (914), a seventh switch (915), a third duplexer (916), a fourth duplexer (917), an eighth filter (926), a fourteenth filter (957), a third antenna switching circuit (918), an eighth switch (919), an eleventh LNA (920), a twelfth LNA (921), a thirteenth LNA (922), a fourteenth LNA (923), a fifteenth LNA (924), and / or a ninth switch (925).

[0216] In one embodiment, the sixth switch (914) and / or the seventh switch (915) may be used as a transmitting switch. In one embodiment, the eighth switch (919) may be used as a receiving switch. In one embodiment, the ninth switch (925) may be used as a receiving switch. As an example, the third RFFE circuit (910) may be implemented as an LPAMID circuit. As an example, the third antenna switching circuit (918) may be implemented as an ASM or a switch.

[0217] In one embodiment, the fourth RFFE circuit (950) may include a fourth antenna switching circuit (951), a ninth filter (952), a tenth filter (953), an eleventh filter (954), a twelfth filter (955), a thirteenth filter (956), a sixteenth LNA (958), a seventeenth LNA (959), an eighteenth LNA (960), a nineteenth LNA (961), a twentieth LNA (962), and / or a tenth switch (963).

[0218] In one embodiment, the tenth switch (963) may be used as a receiving switch. For example, the fourth RFFE circuit (950) may be implemented as an LFEM. For example, the fourth antenna switching circuit (951) may be implemented as an ASM or a switch.

[0219] In one embodiment, the sixth switch (914) may electrically connect the third PA (912) to the third duplexer (916) or the fourth duplexer (917) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (911)).

[0220] In one embodiment, the seventh switch (915) may electrically connect the SRS in port or the fourth PA (913) to the eighth filter (926) or the fourteenth filter (957) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (911)).

[0221] In one embodiment, the third antenna switching circuit (918) may electrically connect the eighth filter (926) to the third antenna (343) under the control of the processor (120) and / or the RFIC (300) (or under the control of the controller (911)).

[0222] In one embodiment, the controller (911) may control components included in the third RFFE circuit (910) and the fourth RFFE circuit (950) via an interface (e.g., MIPI) with the processor (120) and / or the RFIC (300). In one embodiment, the controller (911) may perform an antenna switching operation for SRS transmission under the control of the processor (120) and / or the RFIC (300). The controller (911) may perform an antenna switching operation so that the SRS is transmitted through each of the third antenna (343) and / or the fourth antenna (344) based on a slot structure of a wireless communication system (e.g., an NR system) under the control of the processor (120) and / or the RFIC (300). The antenna switching operation is described as follows.

[0223] In one embodiment, the processor (120) may connect the seventh switch (915) to the eighth filter (926) so that the input third SRS is transmitted through the third antenna (343). After the third SRS is transmitted, the processor (120) may connect the seventh switch (915) to the fourteenth filter (957) so that the input fourth SRS is transmitted through the fourth antenna (344).

[0224] In one embodiment, the third PA (912) may be a PA corresponding to the first frequency band (e.g., MB) (e.g., MB of an LTE system and / or MB of an NR system). In one embodiment, the third PA (912) may amplify an input signal of the first frequency band based on a set gain to generate an amplified signal. The signal output from the third PA (912) may be transmitted to the third duplexer (916) via the sixth switch (914).

[0225] In one embodiment, the fourth PA (913) may be a PA corresponding to a second frequency band (e.g., HB) (e.g., HB of an LTE system and / or HB of an NR system). In one embodiment, the fourth PA (913) may amplify an input signal of the second frequency band based on a set gain to generate an amplified signal. A signal output from the fourth PA (913) may be transmitted to the fourteenth filter (957).

[0226] In one embodiment, it is assumed that EN-DC is implemented for the electronic device (101). Since EN-DC is implemented for the electronic device (101), the electronic device (101) may be connected to an LTE network (e.g., an LTE base station) through a first frequency band (e.g., a B1 band, a B25 band, a B3 band, and / or a B66 band of an LTE system), for example, and may be connected to an NR network (e.g., an NR base station) through a second frequency band (e.g., an N41 band of an NR system). In this case, the third duplexer (916) and the eighth filter (926) may be connected to the third antenna switching circuit (918) through direct mapping.

[0227] In one embodiment, the operations of the third RFFE circuit (910) and the fourth RFFE circuit (950) may be implemented similarly or substantially identically to the operations of the first RFFE circuit (610) and the second RFFE circuit (650), respectively, and thus, a detailed description thereof will be omitted herein. However, the first SRS and the second SRS may be transmitted in the first RFFE circuit (610) and the second RFFE circuit (650), and the third SRS and the fourth SRS may be transmitted in a similar manner in the third RFFE circuit (910) and the fourth RFFE circuit (950).

[0228] FIG. 10 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0229] Referring to FIG. 10, an electronic device (101) (e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7a and FIG. 7b, FIG. 8a and FIG. 8b, or FIG. 9a and FIG. 9b) (e.g., a smart phone) includes an RFFE circuit (1010), a first antenna (341) (e.g., the first antenna (341) of FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7a, FIG. 8a, or FIG. 9a), a second antenna (342) (e.g., the second antenna (342) of FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7a, FIG. 8a, or FIG. 9a), a third antenna (not shown in FIG. 10) (e.g., the third antenna of FIG. 3, FIG. 7b, FIG. 8b, or FIG. 9b) Antenna (343)), and / or a fourth antenna (not shown in FIG. 10) (e.g., the fourth antenna (344) of FIG. 3, FIG. 7B, FIG. 8B, or FIG. 9B). In FIG. 11, an example is shown where the electronic device (101) includes four antennas, including a first antenna (341), a second antenna (342), a third antenna, and / or a fourth antenna, but there may be no limitation on the number of antennas included in the electronic device (101).

[0230] In one embodiment, the RFFE circuit (1010) includes a controller (321) (e.g., the controller (321) of FIG. 4), a first PA (322) (e.g., the first PA (322) of FIG. 4), a second PA (323) (e.g., the second PA (323) of FIG. 4), a first switch (411) (e.g., the first switch (411) of FIG. 4), a second switch (412) (e.g., the second switch (412) of FIG. 4), a first duplexer (413) (e.g., the first duplexer (413) of FIG. 4), a second duplexer (414) (e.g., the second duplexer (414)), a first filter (327) (e.g., the first filter (327) of FIG. 4), a first antenna switching circuit (415) (e.g., the first antenna switching circuit (415) of FIG. 4), a third Switch (416) (e.g., the third switch (416) of FIG. 4), first LNA (330) (e.g., the first LNA (330) of FIG. 4), second LNA (331) (e.g., the second LNA (331) of FIG. 4), third LNA (417) (e.g., the third LNA (417) of FIG. 4), fourth LNA (418) (e.g., the fourth LNA (418) of FIG. 4), fifth LNA (419) (e.g., the fifth LNA (419) of FIG. 4), fourth switch (420) (e.g., the fourth switch (420) of FIG. 4), second antenna switching circuit (461) (e.g., the second antenna switching circuit (461) of FIG. 4), second filter (462) (e.g., the second filter (462) of FIG. 4), third filter (463) (e.g., the third filter (463)), fourth filter (464) (e.g., fourth filter (464) of FIG. 4), fifth filter (465) (e.g., fifth filter (465) of FIG. 4), sixth filter (466) (e.g., sixth filter (466) of FIG. 4), fifth switch (467) (e.g., fifth switch (467) of FIG. 4), sixth LNA (468) (e.g., sixth LNA (468) of FIG. 4), seventh LNA (469) (e.g., seventh LNA (469) of FIG. 4), eighth LNA (470) (e.g., eighth LNA (470) of FIG. 4), ninth LNA (471) (e.g., ninth LNA (471) of FIG. 4), tenth LNA (472) (e.g., tenth LNA (472) of FIG. 4),And / or a sixth switch (473) (e.g., the sixth switch (473) of FIG. 4). In addition, although not separately illustrated in FIG. 10, the RFFE circuit (1010) may include a third antenna switching circuit, and the third antenna switching circuit may transmit the third SRS transmitted from the second filter (462) through the third antenna, or transmit the fourth SRS transmitted from the second filter (462) through the fourth antenna, under the control of the processor.

[0231] The RFFE circuit (1010) illustrated in FIG. 10 may have a form in which the first RFFE circuit (410) and the second RFFE circuit (450) described in FIG. 4 are integrated into one RFFE circuit.

[0232] Accordingly, the controller (321), the first PA (322), the second PA (323), the first switch (411), the second switch (412), the first duplexer (413), the second duplexer (414), the first filter (327), the first antenna switching circuit (415), the third switch (416), the first LNA (330), the second LNA (331), the third LNA (417), the fourth LNA (418), the fifth LNA (419), and / or the fourth switch (420) are included in the first RFFE circuit (410) of FIG. 4. The controller (321), the first PA (322), the second PA (323), the first switch (411), the second switch (412), the first duplexer (413), the second duplexer (414), the first filter (327), the first antenna switching circuit (415), the third The switch (416), the first LNA (330), the second LNA (331), the third LNA (417), the fourth LNA (418), the fifth LNA (419), and / or the fourth switch (420) may be implemented similarly or substantially identically, and a detailed description thereof is omitted here.

[0233] In addition, the second antenna switching circuit (461), the second filter (462), the third filter (463), the fourth filter (464), the fifth filter (465), the sixth filter (466), the fifth switch (467), the sixth LNA (468), the seventh LNA (469), the eighth LNA (470), the ninth LNA (471), the tenth LNA (472), and / or the sixth switch (473) are included in the second RFFE circuit (450) of FIG. 4. The second antenna switching circuit (461), the second filter (462), the third filter (463), the fourth filter (464), the fifth filter (465), the sixth filter (466), the fifth switch (467), the sixth LNA (468), the seventh LNA (469), the eighth LNA (470), the ninth LNA (471), the tenth LNA (472), and / or It can be implemented similarly or substantially identically to the sixth switch (473), and its detailed description is omitted here.

[0234] FIG. 11 is a block diagram schematically illustrating an electronic device according to one embodiment.

[0235] Referring to FIG. 11, an electronic device (101) (e.g., the electronic device (101) of FIG. 1, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7a and FIG. 7b, FIG. 8a and FIG. 8b, FIG. 9a and FIG. 9b, or FIG. 10) (e.g., a smart phone) includes an RFFE (1110) (e.g., the RFFE (1010) of FIG. 10), a first antenna (341) (e.g., the first antenna (341) of FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7a, FIG. 8a, FIG. 9a, or FIG. 10), a second antenna (342) (e.g., the second antenna (342) of FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7a, FIG. 8a, FIG. 9a, or FIG. 10), and a third antenna (not shown in FIG. 11). 3, 7B, 8B, or 9B), and / or a fourth antenna (not shown in FIG. 11) (e.g., the fourth antenna (344) of FIG. 3, 7B, 8B, or 9B). In FIG. 11, an example is shown where the electronic device (101) includes four antennas including a first antenna (341), a second antenna (342), a third antenna, and / or a fourth antenna, but there may be no limitation on the number of antennas included in the electronic device (101).

[0236] In one embodiment, the RFFE circuit (1110) includes a controller (321) (e.g., the controller (321) of FIG. 5), a first PA (322) (e.g., the first PA (322) of FIG. 5), a second PA (323) (e.g., the second PA (323) of FIG. 5), a first switch (411) (e.g., the first switch (411) of FIG. 5), a second switch (512) (e.g., the second switch (412) of FIG. 5), a first duplexer (413) (e.g., the first duplexer (413) of FIG. 5), a second duplexer (414) (e.g., the second duplexer (414) of FIG. 5), a first filter (327) (e.g., the first filter (327) of FIG. 5), a first antenna switching circuit (415) (e.g., the first antenna switching circuit (415) of FIG. 5), a third Switch (416) (e.g., the third switch (416) of FIG. 5), first LNA (330) (e.g., the first LNA (330) of FIG. 5), second LNA (331) (e.g., the second LNA (331) of FIG. 5), third LNA (417) (e.g., the third LNA (417) of FIG. 5), fourth LNA (418) (e.g., the fourth LNA (418) of FIG. 5), fifth LNA (419) (e.g., the fifth LNA (419) of FIG. 5), fourth switch (420) (e.g., the fourth switch (420) of FIG. 5), second antenna switching circuit (461) (e.g., the second antenna switching circuit (461) of FIG. 5), seventh filter (462-1), third filter (463) (e.g., the third filter (463) of FIG. 5), fourth It may include a filter (464) (e.g., the fourth filter (464) of FIG. 5), a fifth filter (465) (e.g., the fifth filter (465) of FIG. 5), a sixth filter (466) (e.g., the sixth filter (466) of FIG. 5), a second filter (567), a sixth LNA (468) (e.g., the sixth LNA (468) of FIG. 5), a seventh LNA (469) (e.g., the seventh LNA (469) of FIG. 5), an eighth LNA (470) (e.g., the eighth LNA (470) of FIG. 5), a ninth LNA (471) (e.g., the ninth LNA (471) of FIG. 5), a tenth LNA (472) (e.g., the tenth LNA (472) of FIG. 5), and / or a sixth switch (473) (e.g., the sixth switch (473) of FIG. 5).Additionally, although not shown separately in FIG. 11, the RFFE circuit (1110) may include a third antenna switching circuit, and the third antenna switching circuit may transmit the third SRS transmitted from the second filter (567) through the third antenna, or transmit the fourth SRS transmitted from the second filter (567) through the fourth antenna, under the control of the processor.

[0237] The RFFE circuit (1110) illustrated in FIG. 11 may have a form in which the first RFFE circuit (510) and the second RFFE circuit (550) described in FIG. 5 are integrated into one RFFE circuit.

[0238] Accordingly, the controller (321), the first PA (322), the second PA (323), the first switch (411), the second switch (512), the first duplexer (413), the second duplexer (414), the first filter (327), the first antenna switching circuit (415), the third switch (416), the first LNA (330), the second LNA (331), the third LNA (417), the fourth LNA (418), the fifth LNA (419), and / or the fourth switch (420) are included in the first RFFE circuit (510) of FIG. 5. The controller (321), the first PA (322), the second PA (323), the first switch (411), the second switch (512), the first duplexer (413), the second duplexer (414), the first filter (327), the first antenna switching circuit (415), the third The switch (416), the first LNA (330), the second LNA (331), the third LNA (417), the fourth LNA (418), the fifth LNA (419), and / or the fourth switch (420) may be implemented similarly or substantially identically, and a detailed description thereof is omitted here.

[0239] In addition, the second antenna switching circuit (461), the seventh filter (462-1), the third filter (463), the fourth filter (464), the fifth filter (465), the sixth filter (466), the second filter (567), the sixth LNA (468), the seventh LNA (469), the eighth LNA (470), the ninth LNA (471), the tenth LNA (472), and / or the sixth switch (473) are included in the second RFFE circuit (550) of FIG. 5. And / or may be implemented similarly or substantially identically to the sixth switch (473), and a detailed description thereof is omitted here.

[0240] FIG. 12A is a block diagram schematically illustrating an electronic device according to one embodiment.

[0241] FIG. 12b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0242] Referring to FIGS. 12A and 12B, an electronic device (101) (e.g., the electronic device (101) of FIG. 1, 3, 4, 5, 6, 7a and 7b, 8a and 8b, 9a and 9b, 10, or 11) (e.g., a smart phone) includes a processor (120) (e.g., the processor (120) of FIG. 1, 3, 7a, 8a, or 9a), an RFIC (300) (e.g., the RFIC (300) of FIG. 3, 7a, 8a, or 9a), a first RFFE circuit (1210), a second RFFE circuit (1250), a first antenna (341) (e.g., the processor (120) of FIG. 1, 3, 7a, 8a, or 9a), 10 or 11), a second antenna (342) (e.g., the second antenna (342) of FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7a , FIG. 8a , FIG. 9a , FIG. 10 , or FIG. 11 ), a third antenna (343) (e.g., the third antenna (343) of FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7b , FIG. 8b , FIG. 9b , FIG. 10 , or FIG. 11 ), and / or a fourth antenna (344) (e.g., the fourth antenna (344) of FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7b , FIG. 8b , FIG. 9b , FIG. 10 , or FIG. 11 ). In FIGS. 12A and 12B, an example is shown in which the electronic device (101) includes four antennas including a first antenna (341), a second antenna (342), a third antenna (343), and / or a fourth antenna (344), but there may be no limitation on the number of antennas included in the electronic device (101).

[0243] In one embodiment, the first RFFE circuit (1210) may have a form in which the first RFFE circuit (410) and the second RFFE circuit (450) as described in FIG. 7A are integrated into a single RFFE circuit. Accordingly, the components included in the first RFFE circuit (1210) may be implemented similarly or substantially identically to the components included in the first RFFE circuit (410) and the second RFFE circuit (450) of FIG. 7A, and thus, a detailed description thereof will be omitted herein.

[0244] In one embodiment, the second RFFE circuit (1250) may have a form in which the third RFFE circuit (710) and the fourth RFFE circuit (750) as described in FIG. 7B are integrated into a single RFFE circuit. Accordingly, the components included in the second RFFE circuit (1250) may be implemented similarly or substantially identically to the components included in the third RFFE circuit (710) and the fourth RFFE circuit (750) of FIG. 7B, and thus, a detailed description thereof will be omitted herein.

[0245] In one embodiment, the processor (120) and RFIC (300) may be implemented similarly or substantially identically to the processor (120) and RFIC (300) of FIG. 7A, and thus, a detailed description thereof is omitted herein.

[0246] FIG. 13a is a block diagram schematically illustrating an electronic device according to one embodiment.

[0247] FIG. 13b is a block diagram schematically illustrating an electronic device according to one embodiment.

[0248] Referring to FIGS. 13A and 13B, an electronic device (101) (e.g., the electronic device (101) of FIGS. 1, 3, 4, 5, 6, 7a and 7b, 8a and 8b, 9a and 9b, 10, 11, or 12a and 12b) (e.g., a smart phone) includes a processor (120) (e.g., the processor (120) of FIGS. 1, 3, 7a, 8a, 9a, or 12a), an RFIC (300) (e.g., the RFIC (300) of FIGS. 3, 7a, 8a, 9a, or 12a), a first RFFE circuit (1310), a second RFFE circuit (1350), a first antenna (341) (e.g., the processor (120) of FIGS. 3, 3, 7a, 8a, 9a, or 12a) 4, 5, 6, 7a, 8a, 9a, 10, 11, or 12a), a second antenna (342) (e.g., the second antenna (342) of FIG. 3, 4, 5, 6, 7a, 8a, 9a, 10, 11, or 12a), a third antenna (343) (e.g., the third antenna (343) of FIG. 3, 4, 5, 6, 7b, 8b, 9b, 10, 11, or 12b), and / or a fourth antenna (344) (e.g., the third antenna (343) of FIG. 3, 4, 5, 6, 7b, 8b, 9b, 10, 11, or 12b). 12b) may include a fourth antenna (344). In FIGS. 13A and 13B, an example is shown in which the electronic device (101) includes four antennas including a first antenna (341), a second antenna (342), a third antenna (343), and / or a fourth antenna (344), but there may be no limitation on the number of antennas included in the electronic device (101).

[0249] In one embodiment, the first RFFE circuit (1310) may have a form in which the first RFFE circuit (510) and the second RFFE circuit (550) as described in FIG. 8A are integrated into a single RFFE circuit. Accordingly, the components included in the first RFFE circuit (1310) may be implemented similarly or substantially identically to the components included in the first RFFE circuit (510) and the second RFFE circuit (550) of FIG. 8A, and thus, a detailed description thereof will be omitted herein.

[0250] In one embodiment, the second RFFE circuit (1350) may have a form in which the third RFFE circuit (810) and the fourth RFFE circuit (850) as described in FIG. 8B are integrated into a single RFFE circuit. Accordingly, the components included in the second RFFE circuit (1350) may be implemented similarly or substantially identically to the components included in the third RFFE circuit (810) and the fourth RFFE circuit (850) of FIG. 8B, and thus, a detailed description thereof will be omitted herein.

[0251] In one embodiment, the processor (120) and RFIC (300) may be implemented similarly or substantially identically to the processor (120) and RFIC (300) of FIG. 8A, and thus, a detailed description thereof is omitted herein.

[0252] According to one embodiment of the present disclosure, an electronic device (101) may include a first antenna (341), a second antenna (342), a duplexer (326) corresponding to a first frequency band, a first filter (327) corresponding to a second frequency band, a first antenna switching circuit (328) connected to the duplexer, the first filter, and the first antenna, a second filter (332) corresponding to the second frequency band, a power amplifier (PA) (323) connected to the first filter or the second filter, and a switch (325) configured to connect the PA to the first filter such that a first sounding reference signal (SRS) is transmitted through the first antenna, or to connect the PA to the second filter such that a second SRS is transmitted through the second antenna based on transmission of the first SRS.

[0253] According to one embodiment of the present disclosure, the electronic device may further include a third antenna (343), a fourth antenna (344), and a second antenna switching circuit (333) connected to the second filter and one of the second antenna, the third antenna, and the fourth antenna.

[0254] According to one embodiment of the present disclosure, based on the transmission of the second SRS, a third SRS is transmitted via the third antenna: the switch may be configured to connect the PA with the second filter, and the second antenna switching circuit may be configured to connect the second filter with the third antenna.

[0255] According to one embodiment of the present disclosure, based on the transmission of the third SRS, a fourth SRS is transmitted via the fourth antenna: the switch may be configured to connect the PA with the second filter, and the second antenna switching circuit may be configured to connect the second filter with the fourth antenna.

[0256] According to one embodiment of the present disclosure, the PA corresponds to the second frequency band and can amplify the first SRS, the second SRS, the third SRS, and the fourth SRS based on a set gain.

[0257] According to one embodiment of the present disclosure, another PA (322) connected to the duplexer may be further included.

[0258] According to one embodiment of the present disclosure, the other PA may correspond to the first frequency band.

[0259] According to one embodiment of the present disclosure, the first frequency band may include a frequency band used in the first network.

[0260] According to one embodiment of the present disclosure, the second frequency band may include a frequency band used in a second network.

[0261] According to one embodiment of the present disclosure, the second filter may be included in a second RFFE circuit that is different from the first radio frequency front end (RFFE) circuit that includes the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch.

[0262] According to one embodiment of the present disclosure, the second filter may include a filter dedicated to transmission of the second SRS, the third SRS, and the fourth SRS, or a filter for reception of other signals.

[0263] According to one embodiment of the present disclosure, the second filter may be included in a second RFFE circuit that is different from the first radio frequency front end (RFFE) circuit that includes the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch.

[0264] According to one embodiment of the present disclosure, the second filter may include a filter dedicated to transmission of the second SRS.

[0265] According to one embodiment of the present disclosure, the second filter may be included in a radio frequency front end (RFFE) circuit including the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch.

[0266] According to one embodiment of the present disclosure, the second filter may include a filter dedicated to transmission of the second SRS.

[0267] According to one embodiment of the present disclosure, an electronic device (101) may include a first antenna (341), a second antenna (342), a duplexer (326) corresponding to a first frequency band, a first filter (327) corresponding to a second frequency band, a first antenna switching circuit (328) connected to the duplexer, the first filter, and the first antenna, a second filter (332) corresponding to the second frequency band, a power amplifier (PA) (323) connected to the first filter or the second filter, a switch (325) connecting the PA to the first filter or the second filter, one or more processors (120) including processing circuitry, and a memory (130) storing instructions.

[0268] According to one embodiment of the present disclosure, the instructions, when individually or collectively executed by the one or more processors, may cause the electronic device to control the switch to connect the PA to the first filter such that a first sounding reference signal (SRS) is transmitted via the first antenna.

[0269] According to one embodiment of the present disclosure, the instructions, when individually or collectively executed by the one or more processors, may cause the electronic device to control the switch to connect the PA to the second filter such that a second SRS is transmitted via the second antenna based on transmission of the first SRS.

[0270] According to one embodiment of the present disclosure, the electronic device may further include a third antenna (343), a fourth antenna (344), and a second antenna switching circuit (333) connected to the second filter and one of the second antenna, the third antenna, and the fourth antenna.

[0271] According to one embodiment of the present disclosure, the instructions, which are individually or collectively executed by the one or more processors, may cause the electronic device to control the switch to connect the PA to the second filter and the second antenna switching circuit to connect the second filter to the third antenna so that a third SRS is transmitted through the third antenna based on transmission of the second SRS.

[0272] According to one embodiment of the present disclosure, the instructions, which are individually or collectively executed by the one or more processors, may cause the electronic device to control the switch to connect the PA to the second filter and the second antenna switching circuit to connect the second filter to the fourth antenna, based on transmission of the third SRS, such that a fourth SRS is transmitted through the fourth antenna.

[0273] According to one embodiment of the present disclosure, the PA corresponds to the second frequency band and can amplify each of the first SRS, the second SRS, the third SRS, and the fourth SRS based on a set gain.

[0274] According to one embodiment of the present disclosure, the electronic device may further include another PA (322) connected to the duplexer.

[0275] According to one embodiment of the present disclosure, the other PA may correspond to the first frequency band.

[0276] According to one embodiment of the present disclosure, the first frequency band may include a frequency band used in the first network.

[0277] According to one embodiment of the present disclosure, the second frequency band may include a frequency band used in a second network.

[0278] According to one embodiment of the present disclosure, the second filter may be included in a second RFFE circuit that is different from the first radio frequency front end (RFFE) circuit that includes the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch.

[0279] According to one embodiment of the present disclosure, the second filter may include a filter dedicated to transmission of the second SRS, the third SRS, and the fourth SRS, or a filter for reception of other signals.

[0280] According to one embodiment of the present disclosure, the second filter may be included in a second RFFE circuit that is different from the first radio frequency front end (RFFE) circuit that includes the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch.

[0281] According to one embodiment of the present disclosure, the second filter may include a filter dedicated to transmission of the second SRS.

[0282] According to one embodiment of the present disclosure, the second filter may be included in a radio frequency front end (RFFE) circuit including the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch.

[0283] According to one embodiment of the present disclosure, the second filter may include a filter dedicated to transmission of the second SRS.

[0284] According to one embodiment of the present disclosure, the method of the electronic device (101) may include an operation of controlling the switch (325) to connect a power amplifier (PA) (323) with a first filter (327) corresponding to a second frequency band so that a first sounding reference signal (SRS) is transmitted through a first antenna (341). Here, the switch may be configured to connect the PA with the first filter or the second filter.

[0285] According to one embodiment of the present disclosure, the method may include an operation of controlling the switch to connect the PA to a second filter (332) corresponding to the second frequency band so that a second SRS is transmitted through a second antenna (342) based on transmission of the first SRS.

[0286] According to one embodiment of the present disclosure, the method may include an operation in which the switch connects the PA to the second filter so that a third SRS is transmitted through a third antenna (343) based on transmission of the second SRS, and a second antenna switching circuit controls the second filter to connect the second antenna to the third antenna. Here, the second antenna switching circuit may be connected to the second filter and one of the second antenna, the third antenna, and the fourth antenna.

[0287] According to one embodiment of the present disclosure, the method may include an operation of controlling the switch to connect the PA to the second filter and the second antenna switching circuit to connect the second filter to the fourth antenna so that a fourth SRS is transmitted through the fourth antenna based on transmission of the third SRS.

[0288] According to one embodiment of the present disclosure, the first frequency band may include a frequency band used in a first network, and the second frequency band may include a frequency band used in a second network.

[0289] According to one embodiment of the present disclosure, the second filter may be included in a second RFFE circuit different from a first radio frequency front end (RFFE) circuit including a duplexer (326) corresponding to the first frequency band, the first filter, the duplexer, the first filter, and a first antenna switching circuit (328) connected to the first antenna, the second filter, and the switch.

[0290] According to one embodiment of the present disclosure, the second filter may include a filter dedicated to transmission of the second SRS, the third SRS, and the fourth SRS, or a filter for reception of other signals.

[0291] According to one embodiment of the present disclosure, the second filter may be included in a second RFFE circuit that is different from the first radio frequency front end (RFFE) circuit that includes the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch.

[0292] According to one embodiment of the present disclosure, the second filter may include a filter dedicated to transmission of the second SRS.

[0293] According to one embodiment of the present disclosure, the second filter is included in a radio frequency front end (RFFE) circuit including the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch, and the second filter may include a filter dedicated to transmission of the second SRS.

[0294] The technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those with ordinary skill in the technical field to which this document pertains from the description below.

[0295] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

Claims

1. In an electronic device (101), First antenna (341); Second antenna (342); A duplexer (326) corresponding to the first frequency band; A first filter (327) corresponding to the second frequency band; A first antenna switching circuit (328) connected to the duplexer, the first filter, and the first antenna; A second filter (332) corresponding to the second frequency band; A power amplifier (PA) (323) connected to the first filter or the second filter; and The electronic device including a switch (325) configured to connect the PA to the first filter so that a first sounding reference signal (SRS) is transmitted through the first antenna, or to connect the PA to the second filter so that a second SRS is transmitted through the second antenna based on transmission of the first SRS.

2. In paragraph 1, Third antenna (343); 4th antenna (344); and Further comprising a second antenna switching circuit (333) connected to the second filter and one of the second antenna, the third antenna, and the fourth antenna, Based on the transmission of the second SRS, the third SRS is transmitted through the third antenna: the switch is configured to connect the PA with the second filter, and The electronic device wherein the second antenna switching circuit is configured to connect the second filter to the third antenna.

3. In paragraph 1 or 2, Based on the transmission of the third SRS, the fourth SRS is transmitted through the fourth antenna: The switch is configured to connect the PA to the second filter, and The electronic device wherein the second antenna switching circuit is configured to connect the second filter to the fourth antenna.

4. In any one of paragraphs 1 to 3, The electronic device wherein the PA corresponds to the second frequency band and amplifies the first SRS, the second SRS, the third SRS, and the fourth SRS based on a set gain.

5. In any one of paragraphs 1 to 4, It further includes another PA (322) connected to the above duplexer, The other PA is the electronic device corresponding to the first frequency band.

6. In any one of paragraphs 1 to 5, The first frequency band includes a frequency band used in the first network, and The electronic device wherein the second frequency band includes a frequency band used in the second network.

7. In any one of paragraphs 2 to 6, The second filter above is: An electronic device comprising a first radio frequency front end (RFFE) circuit including the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch, and a second RFFE circuit different from the first RFFE circuit.

8. In paragraph 7, The electronic device wherein the second filter comprises a filter dedicated to transmission of the second SRS, the third SRS, and the fourth SRS, or a filter for reception of other signals.

9. In paragraph 1, The second filter above is: An electronic device comprising a first radio frequency front end (RFFE) circuit including the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch, and a second RFFE circuit different from the first RFFE circuit.

10. In paragraph 9, The electronic device wherein the second filter comprises a filter dedicated to transmission of the second SRS.

11. In paragraph 1, The second filter is included in a radio frequency front end (RFFE) circuit including the duplexer, the first filter, the first antenna switching circuit, the second filter, and the switch, and The electronic device wherein the second filter comprises a filter dedicated to transmission of the second SRS.

12. In the electronic device (101), First antenna (341); Second antenna (342); A duplexer (326) corresponding to the first frequency band; A first filter (327) corresponding to the second frequency band; A first antenna switching circuit (328) connected to the duplexer, the first filter, and the first antenna; A second filter (332) corresponding to the second frequency band; A power amplifier (PA) (323) connected to the first filter or the second filter; A switch (325) connecting the PA to the first filter or the second filter; One or more processors (120) including processing circuitry; and A memory (130) for storing instructions, wherein when the instructions are individually or collectively executed by one or more processors, the electronic device: Controlling the switch to connect the PA to the first filter so that a first sounding reference signal (SRS) is transmitted through the first antenna, and The electronic device causing the switch to control the PA to connect the second filter so that a second SRS is transmitted through the second antenna based on the transmission of the first SRS.

13. In paragraph 12, Third antenna (343); 4th antenna (344); and Further comprising a second antenna switching circuit (333) connected to the second filter and one of the second antenna, the third antenna, and the fourth antenna, When the above instructions are individually or collectively executed by the one or more processors, the electronic device: Based on the transmission of the second SRS, the switch connects the PA to the second filter so that the third SRS is transmitted through the third antenna, and the second antenna switching circuit controls the second filter to connect the third antenna, and The electronic device, wherein the switch causes the PA to be connected to the second filter so that the fourth SRS is transmitted through the fourth antenna based on the transmission of the third SRS, and the second antenna switching circuit controls the second filter to be connected to the fourth antenna.

14. In any one of paragraphs 12 to 13, It further includes another PA (322) connected to the above duplexer, The other PA is the electronic device corresponding to the first frequency band.

15. In any one of paragraphs 12 to 14, The first frequency band includes a frequency band used in the first network, and The electronic device wherein the second frequency band includes a frequency band used in the second network.

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