Electronic device including radio frequency circuit and storage medium thereof

Abstract

Disclosed is an electronic device comprising: first and second antennas; a memory for storing instructions; and a processor. The instructions may cause the electronic device to, when a first frequency band for communication related to a first SIM is a TDD band and a second frequency band for communication related to a second SIM is a TDD band that is the same as or at least partially overlaps the first frequency band, transmit a first signal on the first frequency band through the first antenna and receive a second signal on the second frequency band through the second antenna rather than the first antenna during a TDD transmission interval for the first SIM, and receive a third signal on the first frequency band and a fourth signal on the second frequency band through the first antenna during a TDD reception interval for the first SIM.

Description

Electronic device including radio frequency circuit and storage medium thereof

[0001] Embodiments of the present disclosure relate to an electronic device including a radio frequency (RF) circuit and a storage medium thereof.

[0002] Driven by remarkable advancements in information and communication technology and semiconductor technology, the proliferation and use of various electronic devices is rapidly increasing. Electronic devices are being developed to be portable and portable, enabling users to communicate with other devices using wireless communication technology.

[0003] A wireless communication electronic device may refer to a device that performs a specific function according to its built-in program, such as a mobile terminal, electronic notebook, portable multimedia player, tablet PC, audio / video device, desktop / laptop computer, home appliance, or in-vehicle navigation system. These electronic devices may be configured to transmit or receive wireless signals via a designated frequency band. Some electronic devices are being miniaturized for convenient portability.

[0004] A portable electronic device may support various frequency bands, for example, frequency ranges of 2nd generation (2G) communication technology, 3rd generation (3G) communication technology, 4th generation (4G) communication technology (e.g., long term evolution (LTE)), and / or 5th generation (5G) communication technology (e.g., new radio (NR)). An electronic device supporting 5G communication technology may communicate using NR SA (standalone) as well as EN-DC (Evolved universal mobile telecommunications system terrestrial radio access (E-UTRA) NR dual connectivity). The electronic device may include one or more power amplifiers (PAs) and one or more low noise amplifiers (LNAs) in a radio frequency (RF) circuit to support dual connectivity (DC) and support multiple subscriber identification module (SIM) cards.

[0005] 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.

[0006] Embodiments of the present disclosure may provide an electronic device including a radio frequency (RF) circuit capable of supporting multiple SIMs and a storage medium thereof.

[0007] An electronic device according to embodiments of the present disclosure may provide an electronic device and a storage medium thereof that support dual SIM dual active (DSDA).

[0008] The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by a person having ordinary skill in the technical field to which the present invention pertains from the description below.

[0009] An electronic device according to one embodiment of the present disclosure may include a first antenna configured to transmit and receive radio frequency (RF) signals, a second antenna configured to receive RF signals, a memory storing instructions, and at least one processor operatively connected to the first antenna, the second antenna, and the memory. The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to: transmit, during a TDD transmission period for the first SIM, a first signal on the first frequency band associated with the first SIM through the first antenna, receive, during a TDD reception period for the first SIM, a second signal on the second frequency band associated with the second SIM through the second antenna rather than the first antenna, and receive, during a TDD reception period for the first SIM, a third signal on the first frequency band associated with the first SIM and a fourth signal on the second frequency band associated with the second SIM through the first antenna, when a first frequency band for communication associated with the first SIM is a TDD band and a second frequency band for communication associated with the second SIM is a TDD band identical to or at least partially overlapping with the first frequency band.

[0010] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium storing one or more programs may include instructions that, when executed by at least one processor of an electronic device, cause the electronic device to: when a first frequency band for communication associated with a first SIM is a TDD band and a second frequency band for communication associated with a second SIM is a TDD band that is the same as or at least partially overlapping with the first frequency band, transmit a first signal on the first frequency band associated with the first SIM through a first antenna during a TDD transmission period for the first SIM, receive a second signal on the second frequency band associated with the second SIM through the second antenna rather than the first antenna, and receive a third signal on the first frequency band associated with the first SIM and a fourth signal on the second frequency band associated with the second SIM through the first antenna during a TDD reception period for the first SIM.

[0011] The above and other aspects, features and advantages of specific embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings.

[0012] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0013] FIG. 2A and FIG. 2B are drawings for explaining a multi-SIM structure according to embodiments of the present disclosure.

[0014] FIG. 3A and FIG. 3B are diagrams for explaining connection with a network according to embodiments of the present disclosure.

[0015] FIG. 4 is a diagram for explaining the structure of a wireless communication path according to one embodiment of the present disclosure.

[0016] FIG. 5 is a diagram illustrating a communication path for DSDA according to one embodiment of the present disclosure.

[0017] FIG. 6 is a diagram illustrating a communication path for DSDA according to one embodiment of the present disclosure.

[0018] FIG. 7 is a diagram illustrating a communication path using the same frequency band for DSDA according to one embodiment of the present disclosure.

[0019] FIG. 8 is a diagram for explaining TDD timing for dual SIM according to one embodiment of the present disclosure.

[0020] FIG. 9 is a diagram showing a signal flow in a transmission time interval during DSDA operation according to one embodiment of the present disclosure.

[0021] FIG. 10 is a diagram showing a signal flow in a reception time interval during DSDA operation according to one embodiment of the present disclosure.

[0022] FIG. 11A is a flowchart illustrating a procedure for transmitting and receiving signals based on dual SIM according to one embodiment of the present disclosure.

[0023] FIG. 11b is a flowchart illustrating a procedure for controlling an RF circuit during DSDA communication according to one embodiment of the present disclosure.

[0024] FIG. 12a is a flowchart illustrating a control procedure of an RF circuit for supporting dual SIM according to one embodiment of the present disclosure.

[0025] FIG. 12b is a diagram for explaining the power level difference of dual SIMs according to one embodiment of the present disclosure.

[0026] FIG. 13 is a diagram for explaining TDD timing for avoiding signal collision of dual SIM according to one embodiment of the present disclosure.

[0027] FIG. 14 is a diagram for explaining a signal flow for frequency collision avoidance during DSDA operation according to one embodiment of the present disclosure.

[0028] FIG. 15 is a diagram for explaining transmission of SRS related to dual SIM according to one embodiment of the present disclosure.

[0029] FIG. 16a and FIG. 16b are diagrams for explaining identification of an SRS transmission section according to one embodiment of the present disclosure.

[0030] FIG. 17 is a diagram for explaining collision avoidance in an SRS transmission section according to one embodiment of the present disclosure.

[0031] The terms used in this disclosure are used only to describe specific embodiments and may not be intended to limit the scope of other embodiments. The singular expression may include plural expressions unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by those of ordinary skill in the art described in this disclosure. Terms defined in general dictionaries among the terms used in this disclosure may be interpreted as having the same or similar meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined in this disclosure. In some cases, even if a term is defined in this disclosure, it cannot be interpreted to exclude embodiments of the present disclosure.

[0032] In one embodiment of the present disclosure described below, a hardware-based approach is exemplified. However, since one embodiment of the present disclosure includes techniques utilizing both hardware and software, one embodiment of the present disclosure does not exclude a software-based approach.

[0033] In the present disclosure, expressions such as "more than" and "less than" may be used to determine whether a specific condition is satisfied and / or fulfilled. However, this is merely a description to express an example and does not exclude descriptions such as "more than" or "less than." Conditions described as "more than" may be replaced with "more than," conditions described as "less than" may be replaced with "less than," and conditions described as "more than and less than" may be replaced with "more than and less than."

[0034] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to various embodiments.

[0035] 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)).

[0036] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result 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.

[0037] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. 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.

[0038] 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).

[0039] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0040] 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).

[0041] 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. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0042] 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. In 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.

[0043] 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).

[0044] 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.

[0045] 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.

[0046] 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).

[0047] 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. In one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0048] 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.

[0049] 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, for example, as at least a part of a power management integrated circuit (PMIC).

[0050] 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.

[0051] 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, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0052] 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) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0053] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (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 by, for example, 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. In some embodiments, in addition to the radiator, another component (e.g., a transceiver (radio frequency integrated circuit)) may be additionally formed as a part of the antenna module (197).

[0054] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, a transceiver 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.

[0055] 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)).

[0056] 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 another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one 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.

[0057] In embodiments of the present disclosure, the term electronic device (e.g., electronic device (101)) may be used interchangeably to refer to any or all of a cellular phone, a smart phone, a personal or mobile multimedia player, a personal data assistant (PDA), a laptop computer, a tablet computer, a smart book, a palmtop computer, a wireless e-mail receiver, a multimedia Internet-enabled mobile phone, a wireless game controller, and similar electronic communication devices that include a programmable processor and memory and communication circuitry for establishing a wireless communication path and transmitting / receiving data over the wireless communication path. The electronic device (e.g., electronic device (101)) may include or be embedded with at least one subscriber identification module (SIM) (e.g., subscriber identification module (196)), and may be authorized to communicate over a communication network (e.g., a first network (198) or a second network (199)) using subscriber information contained in the SIM.

[0058] The terms "SIM," "SIM card," and "subscriber identity module," as used in embodiments of the present disclosure, may be used interchangeably to mean an integrated circuit or software contained in a removable or embedded card that stores an international mobile subscriber identity (IMSI), an associated key, and / or other information used to identify and / or authenticate an electronic device (e.g., electronic device (101)) in a wireless communication network. The term SIM may also be used to refer to a particular communication network or subscriber account associated with the SIM. The electronic device (e.g., electronic device (101)) may establish a communication link with a particular network (e.g., first network (198) or second network (199)) corresponding to the SIM through the information stored in the SIM.

[0059] FIG. 2A and FIG. 2B are drawings for explaining a multi-SIM structure according to embodiments of the present disclosure.

[0060] Referring to FIG. 2A, an electronic device (210) (e.g., electronic device (101)) includes one or more SIMs (e.g., SIM1 (212) and / or SIM2 (214)) and can independently handle communication with one or more subscribed networks (e.g., first network (198) and / or second network (199)) corresponding to the one or more SIMs. In one embodiment, an electronic device (210) including multiple SIMs (e.g., SIM1 (212) and / or SIM2 (214)) may be referred to as a “multi-SIM electronic device” or a “multi-SIM device.”

[0061] In one embodiment, each SIM (212 or 214) may include a central processing unit (CPU), read only memory (ROM), random access memory (RAM), and / or input and output (I / O) circuitry. Each SIM (212 or 214) may include user account information, an international mobile subscriber identity (IMSI), SIM application toolkit (SAT) instructions, and / or phone book contact storage. The electronic device (210) may interact with each SIM (212 or 214) to retrieve data or instructions from each SIM (212 or 214). In one embodiment, each SIM (212 or 214) may store a home public land mobile network (HPLMN) code indicating a designated network operator.

[0062] In one embodiment, the SIMs (212 and 214) of the electronic device (210) may enable communication over different communication networks (e.g., network nodes (202 and 204)) using the same or different wireless communication protocols. In one embodiment, the SIMs (212 and 214) of the electronic device (210) may enable communication over the same network using the same wireless communication protocol. In various embodiments, each SIM (212 or 214) may enable communication over a designated communication network (e.g., network node (202 or 204)) using different RF resources (e.g., transmit / receive paths) of the electronic device (210). The electronic device (210) may be configured to establish a wireless connection with a network node (e.g., network node (202) and network node (204)) of at least one wireless access network, based on each SIM (212 or 214). For example, the electronic device (210) can transmit / receive data to / from a server or a counterpart device (e.g., another electronic device) via network nodes (202, 204).

[0063] The network nodes (202, 204) may be an entity of a cellular data network and may utilize a radio access technology including a protocol usable in 3G (3rd generation), 4G (4th generation), LTE (long term evolution), 5G (5th generation), NR (new radio), GSM (global system for mobile communications), Wi-Fi, or other wireless communication network or data network. In one embodiment, each of the network nodes (202, 204) may include one or more discrete components (e.g., digital units). In one embodiment, the network nodes (202) may be communication units of different frequency bands included in a single network entity.

[0064] In one embodiment, the electronic device (210) may operate on multiple communication networks or subscriber accounts supported by multiple SIMs (e.g., SIM1 (212) and SIM2 (214)). For example, the electronic device (210) may camp on at least partially overlapping cells managed by two (or more) network nodes (202, 204), and then use SIM1 (212) and SIM2 (214) to access at least one of the network nodes (202, 204).

[0065] In one embodiment, if the electronic device (210) supports a dual SIM dual standby (DSDS) scheme, both SIM1 (212) and SIM2 (214) may be in a standby state. While the electronic device (210) is using one SIM (e.g., SIM1 (212)) to establish a communication connection (e.g., a voice call or data session) with the network node (202), the other SIM (e.g., SIM2 (214)) may be deactivated. The electronic device (210) may use an independent transmit / receive path (e.g., a transceiver and / or an RF front end (RFFE)) corresponding to SIM1 (212) within the wireless communication module (192). The electronic device (210) may use the above-described transmit / receive path corresponding to SIM1 (212) to transmit a wireless transmission signal (202a) to a network node (202, 204) via a communication channel of a designated transmission frequency band, or to receive a wireless reception signal (202b) from the network node (202) via a communication channel of a designated reception frequency band. When communication with the network node (202, 204) is terminated, both SIM1 (212) and SIM2 (214) may return to a standby state.

[0066] Referring to FIG. 2B, if the electronic device (210) supports the DSDA (dual SIM dual active) method, SIM1 (212) and SIM2 (214) can be activated simultaneously. While the electronic device (210) is connecting a communication (e.g., a voice call or a data session) with the network node (202) using one SIM (e.g., SIM1 (212)), another communication (e.g., a data session) via the other SIM (e.g., SIM2 (214)) can be performed simultaneously. The electronic device (210) can use two independent transmit / receive paths (e.g., a transceiver and / or RFFE) within the wireless communication module (192), each corresponding to SIM1 (212) and SIM2 (214).

[0067] The electronic device (210) may use a first communication path (e.g., at least one transmission path and at least one reception path) corresponding to SIM1 (212) to transmit a wireless transmission signal (202a) to a network node (202) via a communication channel of a designated first transmission frequency band, or to receive a wireless reception signal (202b) from the network node (202) via a communication channel of a designated first reception frequency band. The electronic device (210) may use a second communication path (e.g., at least one transmission path and at least one reception path) corresponding to SIM2 (214) to transmit a wireless transmission signal (204a) to a network node (204) via a communication channel of a designated second transmission frequency band, or to receive a wireless reception signal (204b) from the network node (204) via a communication channel of a designated second reception frequency band.

[0068] In one embodiment, the electronic device (210) may use the same or different frequency bands allocated by the network nodes (202 and / or 204) for SIM1 (212) and SIM2 (214). The electronic device (210) may set a first communication path included in the wireless communication module (192) to a first frequency band (e.g., a first transmit frequency and a first receive frequency) corresponding to SIM1 (212), and may set a second communication path included in the wireless communication module (192) to a second frequency band (e.g., a second transmit frequency and a second receive frequency) corresponding to SIM2 (214). The first frequency band and the second frequency band may be the same as, different from, or partially overlap each other.

[0069] In one embodiment, the electronic device (210) can simultaneously activate SIM1 (212) and SIM2 (214) to perform voice calls and data communications simultaneously. In one embodiment, SIM1 (212) and SIM2 (214) can be associated with different subscriber information of the same operator network (e.g., public land mobile network (PLMN)) or different operator networks.

[0070] In one embodiment, SIM1 (212) and SIM2 (214) can be used for dual connectivity (DC).

[0071] FIG. 3A and FIG. 3B are diagrams for explaining connection with a network according to embodiments of the present disclosure.

[0072] Referring to FIG. 3A, in a standalone (SA) architecture, a user equipment (UE) (302) (e.g., an electronic device (101) or an electronic device (210)) can access a 5G network (e.g., a 5G core network (5GC) (308)) via a network node (e.g., a gNB (NG node B) (304)) using a wireless communication technology (e.g., a 5G communication technology). The gNB (NG node B) (304) can form an NG coverage (306) using the 5G communication technology. The UE (302) can transmit and receive RF signals including data and / or control signals to and from the gNB (304).

[0073] Referring to FIG. 3b, in an EN-DC (E-UTRA (evolved universal mobile telecommunications system terrestrial radio access) NR dual connectivity) architecture, a user equipment (UE) (312) (e.g., an electronic device (101) or an electronic device (210)) may access an LTE network (e.g., an LTE core network (EPC) (322)) via an LTE base station (e.g., an eNB (LTE node B) (314)) using a wireless communication technology (e.g., an LTE communication technology), while simultaneously accessing an EPC (322) via a base station (e.g., an EN-DC gNB (EN-gNB) (318)) using another wireless communication technology (e.g., a 5G communication technology). The LTE coverage (316) formed by the eNB (314) may at least partially overlap with the NG coverage (320) formed by the EN-gNB (318). A user terminal (312) located in an overlapping area can transmit and receive RF signals including data and / or control signals with an eNB (314), as well as transmit and receive RF signals including data with an EN-gNB (318).

[0074] Terms related to multiple connectivity used in the present disclosure (e.g., dual connectivity (DC), multi-RAT (radio technology)-DC (MR)), cell group, master cell group (MCG), secondary cell group (SCG)), terms referring to signals (e.g., reference signals, system information, control signals, messages, or data), terms referring to network entities (e.g., communication node, radio node, radio unit, network node, master node (MN), secondary node (SN), transmission / reception point (TRP), digital unit (DU), radio unit (RU), or Massive MIMO unit (MMU)), etc. are examples for convenience of explanation. Therefore, the present disclosure is not limited to the terms described below, and other terms having equivalent technical meanings may be used.

[0075] FIG. 4 is a diagram for explaining the structure of a wireless communication path according to one embodiment of the present disclosure.

[0076] Referring to FIG. 4, an electronic device (400) (e.g., electronic device (101), electronic device (210), user device (302), or user device (312)) may include at least one processor (410) (e.g., processor (120)), a transceiver (420), an RFFE (430), and / or an antenna (440).

[0077] The processor (410) may establish a communication channel on a frequency band (e.g., an RF band) to be used for wireless communication with at least one cellular network (e.g., a first network (198) or a second network (199)), and perform wireless communication through the established communication channel. The processor (410) may generate (e.g., encode, modulate, and precode) a baseband signal containing data and control information to be transmitted for wireless communication, and output the baseband signal to the transceiver (420). The processor (410) may receive a baseband signal received for wireless communication from the transceiver (420) and process (e.g., de-precode, demodulate, and decode) the baseband signal. In one embodiment, the processor (410) may include single or multiple processing circuits that operate individually or collectively. In one embodiment, the processor (410) may include a communication processor (CP) configured to process a transmit signal to be transmitted via the transceiver (420) and the RFFE (430) or to process a receive signal received via the transceiver (420) and the RFFE (430), and a control processor configured to control the transceiver (420) and / or the RFFE (430).

[0078] The memory (405) may store a plurality of instructions, data, and information executable by the processor (410). In one embodiment, the instructions, when executed by the processor (410), may cause the electronic device (400) to control the transceiver (420) and the RFFE (430) according to at least one of the embodiments of the present disclosure.

[0079] When transmitting, the transceiver (420) can convert the baseband signal generated by the processor (410) into an RF signal of a designated frequency band and output the RF signal to the RFFE (430). The RFFE (430) can process (e.g., amplify and filter) the RF signal and then transmit the RF signal to the antenna (440) so that it can be radiated into the air through the antenna (440). When receiving, the RF signal of the designated frequency band can be received through the antenna (440) and processed (e.g., filtered and low-noise amplified) through the RFFE (430). The transceiver (420) can convert the RF signal transmitted from the RFFE (430) into a baseband signal so that it can be processed by the processor (410) and output the baseband signal to the processor (410). In one embodiment, the transceiver (420) may include one or more transceivers each responsible for frequency conversion of a designated frequency band.

[0080] The RFFE (430) may include one or more communication paths (e.g., a transmit path (432), a transmit path (434), a receive path (436), and a receive path (438)) that include RF resources configured to filter and amplify RF signals within designated frequency bands. Each of the communication paths (432, 434, 436, 438) may include an independent or mutually sharable band pass filter (BPF) and an independent or sharable amplifier. In one embodiment, the transmit paths (432, 434) may include at least one power amplifier (PA) configured to amplify an RF signal to be transmitted within the designated RF band. In one embodiment, the receive paths (436, 438) may include at least one low noise amplifier (LNA) configured to amplify an RF signal to be received within the designated RF band. In one embodiment, at least two of the communication paths (432, 434, 436, 438) may share the same amplifier (e.g., a power amplifier or a low-noise amplifier) ​​or the same bandpass filter. In one embodiment, one or more of the communication paths (432, 434, 436, 438) may be individually or collectively included in at least one RF circuit.

[0081] In one embodiment, the RFFE (430) may include at least one of a front end module including duplexers (FEMiD), a power amplifier FEMiD (PAMiD), a low noise amplifier (LNA) power amplifier module with integrated duplexer (L-PAMiD), one middle and high bands' frequency (OMH) L-PAMiD, a middle and high band (MHB) front end module with LNA (LFEM), or an LNA, PA, and Filter (LPAF).

[0082] In one embodiment, the electronic device (400) can support multiple RF bands (e.g., 2G frequency bands, 3G frequency bands, LTE frequency bands, and / or NR frequency bands). When the electronic device (400) is configured to support multiple RF bands, the electronic device (400) (e.g., the processor (410)) can simultaneously activate at least two or more of the communication paths (432, 434, 436, 438) of the RFFE (430) to process (e.g., filter and amplify) multiple RF signals within different RF bands or within the same RF bands.

[0083] In one embodiment, the electronic device (400) may include a plurality of SIMs, for example, SIM1 (212) associated with first subscriber information and SIM2 (214) associated with second subscriber information. For example, at least one of SIM1 (212) or SIM2 (214) may be a removable card or embedded circuitry. At least one of SIM1 (212) or SIM2 (214), when activated, may be associated with at least one of communication paths (432, 434, 436, 438). Each of the communication paths (432, 434, 436, 438) may perform signal processing (e.g., filtering and amplification) for its associated SIM (e.g., SIM1 (212) or SIM2 (214)).

[0084] In one embodiment, the electronic device (400) (e.g., processor (410)) may activate at least one of the communication paths (432, 434, 436, 438) (e.g., transmit path (432) and receive path (436)) to process an RF band(s) designated for communication based on SIM1 (212) when SIM1 (212) is activated and communication based on SIM1 (212) is initiated. In one embodiment, when the transmit path (432) is activated, the electronic device (400) (e.g., the processor (410)) can switch the power amplifier and bandpass filter within the transmit path (432) to be connected to the transceiver (420) and the antenna (440), supply power to the power amplifier, and set a gain to the power amplifier. In one embodiment, when the receive path (436) is activated, the electronic device (400) (e.g., the processor (410)) can switch the low-noise amplifier and bandpass filter within the receive path (436) to be connected to the transceiver (420) and the antenna (440), supply power to the low-noise amplifier, and set a gain to the low-noise amplifier.

[0085] In one embodiment, the electronic device (400) (e.g., processor (410)) may activate at least one of the communication paths (432, 434, 436, 438) (e.g., transmit path (434) and receive path (438)) to process an RF band(s) designated for communication based on SIM2 (214) when SIM2 (214) is activated and communication based on SIM2 (214) is initiated. In one embodiment, when transmit path (434) is activated, the electronic device (400) (e.g., processor (410)) may switch a power amplifier and a bandpass filter within the transmit path (434) to be connected to the transceiver (420) and the antenna (440), supply power to the power amplifier, and set a gain to the power amplifier. In one embodiment, when the receive path (438) is activated, the electronic device (400) (e.g., the processor (410)) can switch the low-noise amplifier and bandpass filter within the receive path (438) to be connected to the transceiver (420) and the antenna (440), supply power to the low-noise amplifier, and set the gain to the low-noise amplifier.

[0086] In one embodiment, the electronic device (400) may perform communication over a first frequency band using SIM1 (212) and simultaneously perform communication over a second frequency band using SIM2 (214). To this end, the electronic device (400) may associate a transmit path (432) and a receive path (436) with SIM1 (212), and activate and configure the transmit path (432) and the receive path (436) to process RF signals of the first frequency band. In addition, to this end, the electronic device (400) may associate a transmit path (434) and a receive path (438) with SIM2 (214), and activate and configure the transmit path (434) and the receive path (438) to process RF signals of the second frequency band.

[0087] In one embodiment, the electronic device (400) may be allocated a first frequency band and a second frequency band from network nodes to communicate with network nodes of a 4G or 5G-based cellular network. shows some of the frequency bands available for NR communication or LTE communication.

[0088] Bandwidth Duplex ModeDownlink Frequency (MHz)BandwidthDL / UL (MHz)Uplink Frequency (MHz)n1FDD2110~2170601920-1980n3FDD1805-1880751710-1785n7FDD2620-2690702500-2570n25FDD1930-1995651850-1915n27FDD852-86945807-824n30FDD2350-2360112305-2315n40TDD2300-2400100 2300-2400n41TDD2496-26901942496-2690n48TDD3550-37001503550-3700n66FDD2110-220090 / 701710- 1780n77TDD3300-42009003300-4200n78TDD3300-38005003300-3800n79TDD4400-50006004400-5000...

[0089] Referring to , n1, n3, n25, or n66 are designated as frequency duplex mode (FDD) bands, so the downlink (DL) frequency range and uplink (UL) frequency range may be different. n40, n41, n48 n77, n78, or n79 are designated as time duplex mode (TDD) bands, so the same uplink (UL) frequency range as the downlink (DL) frequency range may be used.

[0090] FIG. 5 is a diagram illustrating a communication path for DSDA according to one embodiment of the present disclosure.

[0091] Referring to FIG. 5, the RFFE (430) may include a first RF circuit (510) and a second RF circuit (530). For example, the first RF circuit (510) (e.g., an ENDC L-PAMiD (low noise amplifier (LNA) power amplifier module with integrated duplexer)) may include a power amplifier (PA) (512), a band switch (514), a filter block (516), a TDD switch (516a), an antenna switch (518), and / or a low noise amplifier (LNA) (520). The first RF circuit (510) may be connected to a first-first antenna (510a) and a first-second antenna (510b) via the antenna switch (518). For example, the second RF circuit (530) (e.g., OMH L-PAMiD) may include a power amplifier (PA) (532), a band switch (534), a filter block (536), a TDD switch (536a), an antenna switch (538), and / or a low noise amplifier (LNA) (540). The second RF circuit (530) may be connected to the second-first antenna (530a) and the second-second antenna (530b) via the antenna switch (538).

[0092] In one embodiment, the filter block (516) of the first RF circuit (510) may include a bandpass filter in the n1 band (e.g., an n1 filter), a bandpass filter in the n3 band (e.g., an n3 filter), a transmit bandpass filter in the n25 band (e.g., an n25 Tx filter), a receive bandpass filter in the n25 band (e.g., an n25 Rx filter), a bandpass filter in the n41 band (e.g., an n41 filter), and / or a bandpass filter in the n66 band (e.g., an n66 filter). In one embodiment, the filter block (536) of the second RF circuit (530) may include a bandpass filter in the n1 band (e.g., an n1 filter), a bandpass filter in the n3 band (e.g., an n3 filter), a transmit bandpass filter in the n25 band (e.g., an n25 Tx filter), a receive bandpass filter in the n25 band (e.g., an n25 Rx filter), a bandpass filter in the n41 band (e.g., an n41 filter), and / or a bandpass filter in the n66 band (e.g., an n66 filter).

[0093] In one embodiment, the TDD switch (516a) includes a first terminal (node) connected to a low noise amplifier (520), a second terminal connected to a power amplifier (512) via a band switch (514), and a third terminal connected to a designated bandpass filter (e.g., an n41 filter, an n48 filter, an n77 filter, an n78 filter, or an n79 filter) for a TDD band within the filter block (516), and can be configured to switchably connect either the first terminal or the second terminal to the third terminal in response to a switching control signal from a processor (e.g., processor (410)). In one embodiment, the TDD switch (536a) includes a fourth terminal connected to a low noise amplifier (540), a fifth terminal connected to a power amplifier (532) via a band switch (534), and a sixth terminal connected to a designated bandpass filter (e.g., an n41 filter, an n48 filter, an n77 filter, an n78 filter, or an n79 filter) for a TDD band within the filter block (536), and can be configured to switchably connect either the fourth terminal or the fifth terminal to the sixth terminal in response to a switching control signal from a processor (e.g., processor (410)).

[0094] In one embodiment, an electronic device (400) (e.g., a processor (410)) including a first RF circuit (510) and a second RF circuit (530) may determine to perform n41 band communication with a network node (504) using SIM1 (212) and to perform n25 band communication with a network node (502) using SIM2 (214).

[0095] In one embodiment, the electronic device (400) (e.g., the processor (410)) may control the antenna switch (518) to connect the 1-1 antenna (510a) to the n25 Rx filter and the n25 Tx filter within the filter block (516) and to connect the 1-2 antenna (510b) to the n41 filter within the filter block (516), control the TDD switch (516a) to connect the n41 filter to the low noise amplifier (520), and control the band switch (514) to connect the power amplifier (512) to the n25 Tx filter based on a decision to use the first RF circuit (510) for reception in the n41 band corresponding to SIM1 (212) and transmission and reception in the n25 band corresponding to SIM2 (214).

[0096] In one embodiment, for the reception operation of the n41 band corresponding to SIM1 (212), the 1-2 antenna (510b) may receive an RF signal, and the RF signal may be transmitted to the n41 filter in the filter block (516) through the antenna switch (518). The n41 filter may filter the RF signal to the n41 band, and the filtered signal may be transmitted to the low noise amplifier (520) by the TDD switch (516a). The low noise amplifier (520) may amplify the filtered signal, and the amplified signal may be transmitted to a transceiver (e.g., the transceiver (420)) for processing of the baseband corresponding to SIM1 (212).

[0097] In one embodiment, for the reception operation of the n25 band corresponding to SIM2 (214), the 1-1 antenna (510a) may receive an RF signal, and the RF signal may be transmitted to the n25 Rx filter in the filter block (516) through the antenna switch (518). The n25 Rx filter may filter the RF signal to the n25 band, and the filtered signal may be transmitted to the low noise amplifier (520). The low noise amplifier (520) may amplify the filtered signal, and the amplified signal may be transmitted to a transceiver (e.g., the transceiver (420)) for processing of the baseband corresponding to SIM2 (214). For transmission operation of the n25 band corresponding to SIM2 (214), the power amplifier (512) can amplify an RF signal transmitted from a transceiver (e.g., transceiver (420)) and transmit the amplified signal to the n25 Tx filter in the filter block (516). The n25 Tx filter filters the amplified signal to the n25 band, and the filtered signal can be transmitted to the 1-1 antenna (510a) through the antenna switch (518).

[0098] In one embodiment, the electronic device (400) (e.g., the processor (410)) may control the antenna switch (538) to connect the 2-1 antenna (530a) to the n25 Rx filter in the filter block (536) and the 2-2 antenna (530b) to the n41 filter in the filter block (536) based on a decision to use the second RF circuit (530) for transmission and reception in the n41 band corresponding to SIM1 (212) and reception in the n25 band corresponding to SIM2 (214), control the TDD switch (536a) to alternately connect the n41 filter to the low noise amplifier (540) and the power amplifier (532) according to the TDD operation, and control the band switch (534) to connect the power amplifier (532) to the n41 filter via the TDD switch (536a).

[0099] In one embodiment, for the reception operation of the n41 band corresponding to SIM1 (212), the 2-2 antenna (530b) may receive an RF signal, and the RF signal may be transmitted to the n41 filter in the filter block (536) through the antenna switch (538). The n41 filter may filter the RF signal to the n41 band, and the filtered signal may be transmitted to the low noise amplifier (540) by the TDD switch (536a). The low noise amplifier (540) may amplify the filtered signal, and the amplified signal may be transmitted to a transceiver (e.g., the transceiver (420)) for processing of the baseband corresponding to SIM1 (212).

[0100] In one embodiment, for a transmission operation of the n41 band corresponding to SIM1 (212), the power amplifier (532) amplifies an RF signal transmitted from a transceiver (e.g., transceiver (420)), and the amplified signal can be transmitted to the n41 filter in the filter block (536) through the TDD switch (536a). The n41 filter filters the amplified signal to the n41 band, and the filtered signal can be transmitted to the 2-2 antenna (530b) through the antenna switch (538).

[0101] In one embodiment, for the reception operation of the n25 band corresponding to SIM2 (214), the second-1 antenna (530a) may receive an RF signal, and the RF signal may be transmitted to the n25 Rx filter in the filter block (536) through the antenna switch (538). The n25 Rx filter may filter the RF signal to the n25 band, and the filtered signal may be transmitted to the low-noise amplifier (540). The low-noise amplifier (540) may amplify the filtered signal, and the amplified signal may be transmitted to a transceiver (e.g., the transceiver (420)) for processing of the baseband corresponding to SIM2 (214).

[0102] In the illustrated example, each of the first RF circuit (510) and the second RF circuit (530) can be operated to process both the n41 band corresponding to SIM1 (212) and the n25 band corresponding to SIM2 (214).

[0103] FIG. 6 is a diagram illustrating a communication path for DSDA according to one embodiment of the present disclosure.

[0104] Referring to FIG. 6, the RFFE (430) may include a first RF circuit (610) and a second RF circuit (630). For example, the first RF circuit (610) (e.g., OMH L-PAMiD) may include a power amplifier (PA) (612), a band switch (614), a filter block (616), a TDD switch (616a), an antenna switch (618), and / or a low noise amplifier (LNA) (620). The first RF circuit (610) may be connected to a first-first antenna (610a) and a first-second antenna (610b) via the antenna switch (618). For example, the second RF circuit (630) (e.g., an ultra-high band (UHB) LPAF (LNA, PA, and filter)) may include a power amplifier (PA) (632), a filter block (636), an antenna switch (638), and / or a low noise amplifier (LNA) (640). The second RF circuit (630) may be connected to a second-first antenna (630a) and a second-second antenna (630b) via the antenna switch (638).

[0105] In one embodiment, the filter block (616) of the first RF circuit (610) may include a bandpass filter in the n1 band (e.g., an n1 filter), a bandpass filter in the n3 band (e.g., an n3 filter), a transmit bandpass filter in the n25 band (e.g., an n25 Tx filter), a receive bandpass filter in the n25 band (e.g., an n25 Rx filter), a bandpass filter in the n41 band (e.g., an n41 filter), and / or a bandpass filter in the n66 band (e.g., an n66 filter). In one embodiment, the filter block (636) of the second RF circuit (630) may include bandpass filters in the n77 band (e.g., a first n77 filter, a second n77 filter, and / or a third n77 filter).

[0106] In one embodiment, the TDD switch (616a) includes a first terminal connected to a low noise amplifier (620), a second terminal connected to a power amplifier (612) via a band switch (614), and a third terminal connected to a bandpass filter (e.g., an n41 filter, an n48 filter, an n77 filter, an n78 filter, or an n79 filter) for a TDD band within the filter block (616), and can be configured to switchably connect either the first terminal or the second terminal to the third terminal in response to a switching control signal from a processor (e.g., processor (410)).

[0107] In one embodiment, an electronic device (400) (e.g., a processor (410)) including a first RF circuit (610) and a second RF circuit (630) may determine to use SIM1 (212) to communicate with a network node (602) in the n41 band and use SIM2 (214) to communicate with a network node (604) in the n77 band.

[0108] In one embodiment, the electronic device (400) (e.g., the processor (410)) may control the antenna switch (618) to connect the first-second antenna (610b) to the n41 filter in the filter block (616) based on a decision to use the first RF circuit (610) for transmission and reception of the n41 band corresponding to SIM1 (212), control the TDD switch (616a) to alternately connect the n41 filter to the low-noise amplifier (620) and the power amplifier (612) according to the TDD operation, and control the band switch (614) to connect the power amplifier (612) to the n41 filter via the TDD switch (616a).

[0109] In one embodiment, for the reception operation of the n41 band corresponding to SIM1 (212), the 1-2 antenna (610b) may receive an RF signal, and the RF signal may be transmitted to the n41 filter in the filter block (616) through the antenna switch (618). The n41 filter may filter the RF signal to the n41 band, and the filtered signal may be transmitted to the low noise amplifier (620) by the TDD switch (616a). The low noise amplifier (620) may amplify the filtered signal, and the amplified signal may be transmitted to a transceiver (e.g., the transceiver (420)) for processing of the baseband corresponding to SIM1 (212). For transmission operation of the n41 band corresponding to SIM1 (212), the power amplifier (612) amplifies an RF signal transmitted from a transceiver (e.g., transceiver (420)), and the amplified signal can be transmitted to the n41 filter in the filter block (616) through the TDD switch (616a). The n41 filter filters the amplified signal to the n41 band, and the filtered signal can be transmitted to the first-second antenna (610b) through the antenna switch (618).

[0110] In one embodiment, the electronic device (400) (e.g., the processor (410)) may control the antenna switch (638) to connect the second-2 antenna (630b) to the second n77 filter within the filter block (636) in a receive mode, and may control the antenna switch (638) to connect the output from the third n77 filter within the filter block (636) to the second-2 antenna (630b) in a transmit mode, based on a determination to use the second RF circuit (630) for transmission and reception of the n77 band corresponding to SIM2 (214).

[0111] In one embodiment, for the reception operation of the n77 band corresponding to SIM2 (214), the second-2 antenna (630b) may receive an RF signal, and the RF signal may be transmitted to a second n77 filter in the filter block (636) through an antenna switch (638). The second n77 filter may filter the RF signal to the n77 band, and the filtered signal may be transmitted to a low-noise amplifier (640). The low-noise amplifier (640) may amplify the filtered signal, and the amplified signal may be transmitted to a transceiver (e.g., transceiver (420)) for processing of the baseband corresponding to SIM2 (214). For transmission operation of the n77 band corresponding to SIM2 (214), the power amplifier (632) amplifies an RF signal transmitted from a transceiver (e.g., transceiver (420)), and the amplified signal can be transmitted to the third n77 filter in the filter block (636). The third n77 filter filters the amplified signal to the n77 band, and the filtered signal can be transmitted to the second-second antenna (630b) through the antenna switch (638).

[0112] In the illustrated example, the first RF circuit (610) and the second RF circuit (630) can operate independently to process the n41 band corresponding to SIM1 (212) and the n77 band corresponding to SIM2 (214).

[0113] FIG. 7 is a diagram illustrating a communication path using the same frequency band for DSDA according to one embodiment of the present disclosure.

[0114] Referring to FIG. 7, the RFFE (430) may include an RF circuit (710). For example, the RF circuit (710) may include a low noise amplifier (LNA) (712), a filter block (714), and / or an antenna switch (716). Although not shown, the RF circuit (710) may be connected to at least one antenna via the antenna switch (716). Although not shown, the RF circuit (710) may include additional filters and a power amplifier.

[0115] In one embodiment, the filter block (714) may include a bandpass filter in the n66 band (e.g., an n66 filter), a bandpass filter in the n25 band and the n27 band (e.g., an n25+n27 filter), a bandpass filter in the n30 band (e.g., an n30 filter), a bandpass filter in the n7 band (e.g., an n7 filter), and / or a bandpass filter in the n41 band (e.g., an n41 filter).

[0116] In one embodiment, an electronic device (400) (e.g., processor (410)) including an RF circuit (710) may determine to perform n41 band communication using SIM1 (212) and to perform n41 band communication using SIM2 (214). Based on the determination to use the RF circuit (710) for n41 band communication corresponding to SIM1 (212) and n41 band communication corresponding to SIM2 (214), the electronic device (400) (e.g., processor (410)) may control an antenna switch (716) to transmit a n41 band transmission signal corresponding to SIM1 (212) (e.g., SIM1 N41_SRS (702)) through at least one antenna and simultaneously receive a n41 band reception signal corresponding to SIM2 (214) (e.g., SIM2 N41_Rx (704)) through at least one antenna.

[0117] A signal received through at least one antenna (e.g., SIM2 N41_Rx (704)) is transmitted to the n41 filter by the antenna switch (716), and the n41 filter can filter the received signal and transmit it to the low noise amplifier (712). The low noise amplifier (712) can amplify the filtered signal and transmit it to the transceiver (420) through a designated output terminal (e.g., OUT2).

[0118] In one embodiment, when the electronic device (400) determines to use the same RF circuit (e.g., RF circuit (710)) for communication in a first frequency band (e.g., n41 band) corresponding to SIM1 (212) and communication in a second frequency band (e.g., n41 band) corresponding to SIM2 (214), and the transmit frequency (e.g., n41 band) corresponding to SIM1 (212) and the receive frequency (e.g., n41 band) corresponding to SIM2 (214) are the same, the following situation may occur when the transmit of SIM1 (212) and the receive of SIM2 (214) are activated simultaneously.

[0119] For example, if a transmission signal of SIM1 (212) enters the low noise amplifier (712) through a receiving path (e.g., antenna switch (716) and n41 filter), the low noise amplifier (712) may be damaged (712a) due to the transmission signal. In one embodiment, if a transmission signal of the n41 band corresponding to SIM1 (212) (e.g., SIM1 N41_SRS (702)) includes an SRS (sounding reference signal) having relatively high power compared to a data or control signal, the low noise amplifier (712) may be damaged by the high power of the SRS.

[0120] For example, if the transmit signal of SIM1 (212) and the receive signal of SIM2 (214) use the same antenna and the same communication path (e.g., RF circuit (710)), a drop in RSRP (reference signals received power) on the receive path and / or a block error rate (BLER) on the transmit path may occur.

[0121] To prevent situations such as the above, the electronic device (400) can synchronize the transmission and reception timing corresponding to SIM1 (212) and the transmission and reception timing corresponding to SIM2 (214) when a combination of frequency bands using TDD is used for DSDA.

[0122] FIG. 8 is a diagram for explaining TDD timing for dual SIM according to one embodiment of the present disclosure.

[0123] Referring to FIG. 8, the electronic device (400) may determine to use a first frequency band (e.g., n41 band) designated as TDD for communication of SIM1 (212) and to use a second frequency band (e.g., n41 band) designated as TDD for communication of SIM2 (214). In one embodiment, the first frequency band and the second frequency band are frequency bands designated to be used as TDD, and may be at least partially overlapping or the same frequency band.

[0124] The electronic device (400) may determine to use a single RF circuit (e.g., RF circuit (710)) for both communication in a first frequency band associated with SIM1 (212) and communication in a second frequency band associated with SIM2 (214). Based on identifying that TDD communication is performed in the first frequency band associated with SIM1 (212), the electronic device (400) may identify designated transmission time intervals (e.g., transmission time interval (802a)) and reception time intervals (e.g., reception time interval (804a)) for TDD communication associated with SIM1 (212). The electronic device (400) may identify that TDD communication is performed in the second frequency band associated with SIM2 (214) and, based on configuration information received from a network (e.g., network node (202) and / or network node (204)), identify designated transmission time intervals and reception time intervals corresponding to SIM2 (214).

[0125] A designated transmission time interval (802a) of a first frequency band associated with SIM1 (212) and a designated transmission time interval (802b) of a second frequency band associated with SIM2 (214) may be synchronized within a time interval T1 (802). In one embodiment, the transmission time interval (802a) and the transmission time interval (802b) may coincide with the time interval T1 (802). The electronic device (400) may transmit at least one transmission signal of the first frequency band associated with SIM1 (212) and / or transmit at least one transmission signal of the second frequency band associated with SIM2 (214) within the time interval T1 (802). The electronic device (400) may use at least one transmit path (e.g., a power amplifier and a bandpass filter) within at least one RF circuit (e.g., an RF circuit (710)) to transmit at least one transmit signal in a first frequency band associated with SIM1 (212) and at least one transmit signal in a second frequency band associated with SIM2 (214).

[0126] A designated reception time interval (804a) of a first frequency band associated with SIM1 (212) and a designated reception time interval (804b) of a second frequency band associated with SIM2 (214) may be synchronized within a time interval T2 (804). In one embodiment, the reception time interval (804a) and the reception time interval (804b) may coincide with the time interval T2 (804). The electronic device (400) may receive one or more reception signals of the first frequency band associated with SIM1 (212) and / or one or more reception signals of the second frequency band associated with SIM2 (214) within the time interval T2 (804). The electronic device (400) may use at least one receiving path (e.g., a bandpass filter and a low-noise amplifier) ​​within at least one RF circuit (e.g., an RF circuit (710)) to receive a first frequency band receiving signal(s) associated with SIM1 (212) and a second frequency band receiving signal(s) associated with SIM2 (214).

[0127] In one embodiment, the electronic device (400) can activate one or more receive paths (e.g., a bandpass filter and / or a low-noise amplifier) ​​for performing communication in a first frequency band associated with SIM1 (212) within a time interval T2 (804), and can receive one or more receive signals (e.g., at least one of RX1, RX2, RX3, or RX4) substantially simultaneously through the receive paths. In one embodiment, RX3 and RX4 of the receive signals can correspond to multiple layers for downlink multiple input multiple output (MIMO). In one embodiment, the electronic device (400) can activate one or more receive paths (e.g., a bandpass filter and / or a low-noise amplifier) ​​for performing communication in a second frequency band associated with SIM2 (214) within a time interval T2 (804), and can substantially simultaneously receive one or more receive signals (e.g., at least one of RX1, RX2, RX3, or RX4) through the receive paths. In one embodiment, RX3 and RX4 of the receive signals can correspond to multiple layers for downlink MIMO.

[0128] In one embodiment, a designated transmission time interval of a first frequency band associated with SIM1 (212) and a designated transmission time interval of a second frequency band associated with SIM2 (214) may be synchronized within a time interval T3 (806). The electronic device (400) may transmit a transmission signal of the first frequency band associated with SIM1 (212) and / or transmit a transmission signal of the second frequency band associated with SIM2 (214) within the time interval T3 (806).

[0129] In one embodiment, a designated reception time interval of a first frequency band associated with SIM1 (212) and a designated reception time interval of a second frequency band associated with SIM2 (214) may be synchronized within a time interval T4 (808). The electronic device (400) may receive one or more reception signals (e.g., RX1, RX2, RX3, and RX4) of the first frequency band associated with SIM1 (212) and / or one or more reception signals (e.g., RX1, RX2, RX3, and RX4) of the second frequency band associated with SIM2 (214) within the time interval T4 (808).

[0130] FIG. 9 is a diagram showing a signal flow in a transmission time interval during DSDA operation according to one embodiment of the present disclosure.

[0131] Referring to FIG. 9, an RFFE (430) according to one embodiment may include a first RF circuit (910) (e.g., an ENDC L-PAMiD), a second RF circuit (930) (e.g., an MHB LFEM), a third RF circuit (940) (e.g., an OMH L-PAMiD), and / or a fourth RF circuit (960) (e.g., an MHB LFEM). In one embodiment, the first RF circuit (910) and the third RF circuit (940) may include a transmit path (e.g., power amplifiers (912, 942)) and a receive path (e.g., low-noise amplifiers (920, 950)). In one embodiment, the second RF circuit (930) and the fourth RF circuit (960) may be configured to include only a receive path (e.g., low-noise amplifiers (936, 969)) without a transmit path to support downlink MIMO.

[0132] In one embodiment, the first RF circuit (910) supports both transmission and reception and may be used, for example, for a primary bearer of ENDC. The first RF circuit (910) may include a power amplifier (912), a band switch (914), a filter block (916), a TDD switch (916a), an antenna switch (918), and / or a low-noise amplifier (920). The first RF circuit (910) may be connected to the first-first antenna (910a) and the first-second antenna (910b) via the antenna switch (918).

[0133] In one embodiment, the filter block (916) can include at least one of a bandpass filter in the n1 band (e.g., an n1 filter), a bandpass filter in the n3 band (e.g., an n3 filter), a bandpass filter in the n41 band (e.g., an n41 filter), or a bandpass filter in the n66 band (e.g., an n66 filter). In one embodiment, the filter block (916) is not limited to including the illustrated bandpass filters, and some bandpass filters may be omitted or may further include additional bandpass filters (e.g., at least one of an n77 filter, an n78 filter, or an n79 filter). In one embodiment, each filter of the filter block (916) can be used for transmitting, receiving, or both transmitting and receiving.

[0134] In one embodiment, the second RF circuit (930) is configured to support reception of downlink MIMO and can process (e.g., filter and amplify) RF signals of a designated middle band (MB) (e.g., about 1 GHz to 2.3 GHz) and a designated high band (HB) (e.g., about 2.3 GHz to 2.7 GHz) among the RF bands of the cellular network. For example, the second RF circuit (930) can include an antenna switch (932), a filter block (934), and a low noise amplifier (936). The second RF circuit (930) can be connected to a second-first antenna (930a) and a second-second antenna (930b) via the antenna switch (932).

[0135] In one embodiment, the filter block (934) can include at least one of a bandpass filter in the n25 band (e.g., an n25 filter), a bandpass filter in the n41 band (e.g., an n41 filter), or a bandpass filter in the n66 band (e.g., an n66 filter). In one embodiment, the filter block (934) is not limited to including the illustrated bandpass filters, and some bandpass filters may be omitted, or additional bandpass filters may be further included (e.g., at least one of an n77 filter, an n78 filter, or an n79 filter).

[0136] In one embodiment, the third RF circuit (940) supports both transmission and reception and may be configured to process (e.g., filter and amplify) RF signals of designated MB and HB among the RF bands of the cellular network. The third RF circuit (940) may include a power amplifier (942), a band switch (944), a filter block (946), a TDD switch (946a), an antenna switch (948), and / or a low noise amplifier (950). The third RF circuit (940) may be connected to the third-first antenna (940a) and the third-second antenna (940b) via the antenna switch (948). In one embodiment, the filter block (946) can include at least one of a bandpass filter in the n1 band (e.g., an n1 filter), a bandpass filter in the n3 band (e.g., an n3 filter), a bandpass filter in the n41 band (e.g., an n41 filter), or a bandpass filter in the n66 band (e.g., an n66 filter). In one embodiment, the filter block (946) is not limited to including the illustrated bandpass filters, and some bandpass filters may be omitted, or additional bandpass filters may be further included (e.g., at least one of an n77 filter, an n78 filter, or an n79 filter).

[0137] In one embodiment, the fourth RF circuit (960) is configured to support reception of downlink MIMO and may process (e.g., filter and amplify) RF signals of designated MB and HB among the RF bands of the cellular network. For example, the fourth RF circuit (960) may include an antenna switch (962), a filter block (964), and / or a low noise amplifier (966). The fourth RF circuit (960) may be connected to the 4-1 antenna (960a) and the 4-2 antenna (960b) via the antenna switch (962). In one embodiment, the filter block (964) may include at least one of a bandpass filter of the n25 band (e.g., an n25 filter), a bandpass filter of the n41 band (e.g., an n41 filter), or a bandpass filter of the n66 band (e.g., an n66 filter). In one embodiment, the filter block (964) is not limited to including the illustrated bandpass filters, and some bandpass filters may be omitted or may further include additional bandpass filters (e.g., at least one of an n77 filter, an n78 filter, or an n79 filter).

[0138] In one embodiment, the electronic device (400) (e.g., the processor (410)) may determine to perform TDD communication over a first frequency band (e.g., the n41 band) using SIM1 (212) and to perform TDD communication over a second frequency band (e.g., the n41 band) using SIM2 (214). In one embodiment, the electronic device (400) (e.g., the processor (410)) may be allocated a first frequency band (e.g., the n41 band) designated to use TDD for communication related to SIM1 (212) from a network (e.g., the network node (202)), and in one embodiment, the electronic device (400) (e.g., the processor (410)) may be allocated a second frequency band (e.g., the n41 band) designated to use TDD for communication related to SIM2 (214) from a network (e.g., the network node (204)).

[0139] In one embodiment, in a transmission time interval (e.g., time interval T1 (802) or time interval T3 (806)) for TDD communication associated with SIM1 (212) and TDD communication associated with SIM2 (214), the electronic device (400) (e.g., processor (410)) may activate transmission paths associated with a designated frequency band (e.g., n41 band) of the first RF circuit (910) and the third RF circuit (940).

[0140] In one embodiment, the act of activating the transmit path of the first RF circuit (910) may include supplying power to a power amplifier (912) of the first RF circuit (910), controlling a TDD switch (916a) such that an output of the power amplifier (912) is connected to a designated bandpass filter (e.g., an n41 filter) for a TDD band within a filter block (916), and controlling an antenna switch (918) such that an output of the n41 filter is connected to the first-first antenna (910a). In one embodiment, for transmit operations in the n41 band associated with SIM1 (212) in time intervals T1 (802) and T3 (806), the power amplifier (912) may amplify an RF signal transmitted from a transceiver (e.g., the transceiver (420)) and transmit the amplified signal to the n41 filter within the filter block (916). The n41 filter filters the amplified signal into the n41 band, and the filtered signal (e.g., SIM1 N41_Tx (902)) can be transmitted to the first-first antenna (910a) through the antenna switch (918). In one embodiment, when the transmission path of the first RF circuit (910) is activated, the reception path (e.g., low-noise amplifier (920)) of the first RF circuit (910) can be deactivated.

[0141] In one embodiment, the act of activating the transmit path of the third RF circuit (940) may include supplying power to a power amplifier (942) of the third RF circuit (940), controlling a TDD switch (946a) such that an output of the power amplifier (942) is connected to an n41 filter within a filter block (946), and controlling an antenna switch (948) such that an output of the n41 filter is connected to a third-second antenna (940b). In one embodiment, for transmit operations in the n41 band associated with SIM2 (214) in time intervals T1 (802) and T3 (806), the power amplifier (942) may amplify an RF signal transmitted from a transceiver (e.g., transceiver (420)) and transmit the amplified signal to the n41 filter within the filter block (946). The n41 filter filters the amplified signal into the n41 band, and the filtered signal (e.g., SIM2 N41_Tx (904)) can be transmitted to the 3-2 antenna (940b) through the antenna switch (948).

[0142] The second RF circuit (930) and the fourth RF circuit (960) may be deactivated during the above transmission time interval (e.g., time interval T1 (802) or time interval T3 (806)).

[0143] FIG. 10 is a diagram showing a signal flow in a reception time interval during DSDA operation according to one embodiment of the present disclosure.

[0144] Referring to FIG. 10, an RFFE (430) according to one embodiment may include a first RF circuit (910), a second RF circuit (930), a third RF circuit (940), and a fourth RF circuit (960). A description of the first RF circuit (910), the second RF circuit (930), the third RF circuit (940), and the fourth RF circuit (960) may refer to FIG. 9.

[0145] In one embodiment, the electronic device (400) (e.g., the processor (410)) may determine to perform TDD communication over a first frequency band (e.g., the n41 band) using SIM1 (212) and to perform TDD communication over a second frequency band (e.g., the n41 band) using SIM2 (214). In one embodiment, the electronic device (400) (e.g., the processor (410)) may be allocated a first frequency band (e.g., the n41 band) designated to use TDD for communication related to SIM1 (212) from a network (e.g., the network node (202)), and in one embodiment, the electronic device (400) (e.g., the processor (410)) may be allocated a second frequency band (e.g., the n41 band) designated to use TDD for communication related to SIM2 (214) from a network (e.g., the network node (204)).

[0146] In one embodiment, in a reception time interval (e.g., time interval T2 (804) or time interval T4 (808)) for TDD communication associated with SIM1 (212) and TDD communication associated with SIM2 (214), the electronic device (400) (e.g., processor (410)) can activate at least one of the reception paths associated with the n41 band of the first RF circuit (910), the second RF circuit (930), the third RF circuit (940), and the fourth RF circuit (960). The electronic device (400) can process up to four reception signals on the first frequency band and the second frequency band simultaneously by using the first RF circuit (910), the second RF circuit (930), the third RF circuit (940), and the fourth RF circuit (960).

[0147] In one embodiment, the act of activating the receive path of the first RF circuit (910) may include supplying power to the low noise amplifier (920) of the first RF circuit (910), controlling the TDD switch (916a) so that an input of the low noise amplifier (920) is connected to the n41 filter within the filter block (916), and controlling the antenna switch (918) so that an input of the n41 filter is connected to the 1-1 antenna (910a). In one embodiment, for the receive operation of the n41 band corresponding to SIM1 (212) and SIM2 (214), the 1-1 antenna (910a) may receive an RF signal (e.g., N41_Rx1 (1002)), and the RF signal may be transmitted to the n41 filter within the filter block (916) via the antenna switch (918). The n41 filter filters the RF signal into the n41 band, and the filtered signal can be transmitted to the low noise amplifier (920) by the TDD switch (916a). The low noise amplifier (920) amplifies the filtered signal, and the amplified signal can be transmitted to a transceiver (e.g., the transceiver (420)) for baseband processing corresponding to SIM1 (212) and SIM2 (214). In one embodiment, when the receive path of the first RF circuit (910) is activated, the transmit path (e.g., the power amplifier (912)) of the first RF circuit (910) can be deactivated.

[0148] In one embodiment, the act of activating the receive path of the second RF circuit (930) may include supplying power to the low noise amplifier (936) of the second RF circuit (930) and controlling the antenna switch (932) such that the input of the n41 filter within the filter block (934) is connected to the second-second antenna (930b). In one embodiment, for the receive operation of the n41 band corresponding to SIM1 (212) and SIM2 (214), the second-second antenna (930b) may receive an RF signal (e.g., N41_Rx2 (1004)), and the RF signal may be transmitted to the n41 filter within the filter block (934) through the antenna switch (932). The n41 filter may filter the RF signal to the n41 band, and the filtered signal may be transmitted to the low noise amplifier (936). A low noise amplifier (936) amplifies the filtered signal, and the amplified signal can be transmitted to a transceiver (e.g., transceiver (420)) for processing of the baseband corresponding to SIM1 (212) and SIM2 (214).

[0149] In one embodiment, the act of activating the receive path of the third RF circuit (940) may include supplying power to a low noise amplifier (950) of the third RF circuit (940), controlling a TDD switch (946a) such that an input of the low noise amplifier (950) is connected to an n41 filter within a filter block (946), and controlling an antenna switch (948) such that an input of the n41 filter is connected to a third-second antenna (940b). In one embodiment, for a receive operation in the n41 band corresponding to SIM1 (212) and SIM2 (214), the third-second antenna (940b) receives an RF signal (e.g., N41_Rx3 (1006)), which may be transmitted to the n41 filter within the filter block (946) via the antenna switch (948). The n41 filter filters the RF signal into the n41 band, and the filtered signal can be transmitted to the low noise amplifier (950) by the TDD switch (946a). The low noise amplifier (950) amplifies the filtered signal, and the amplified signal can be transmitted to a transceiver (e.g., transceiver (420)) for processing of the baseband corresponding to SIM1 (212) and SIM2 (214).

[0150] In one embodiment, the act of activating the receive path of the fourth RF circuit (960) may include supplying power to the low noise amplifier (966) of the fourth RF circuit (960) and controlling the antenna switch (962) so that the input of the n41 filter within the filter block (964) is connected to the 4-2 antenna (960b). In one embodiment, for the receive operation of the n41 band corresponding to SIM1 (212) and SIM2 (214), the 4-2 antenna (960b) may receive an RF signal (e.g., N41_Rx4 (1008)), and the RF signal may be transmitted to the n41 filter within the filter block (964) through the antenna switch (962). The n41 filter may filter the RF signal to the n41 band, and the filtered signal may be transmitted to the low noise amplifier (966). A low noise amplifier (966) amplifies the filtered signal, and the amplified signal can be transmitted to a transceiver (e.g., transceiver (420)) for processing of the baseband corresponding to SIM1 (212) and SIM2 (214).

[0151] In order to prevent signal collision (712a) between the transmission frequency of SIM1 (212) and the reception frequency of SIM2 (214), if the transmission time interval (e.g., transmission time interval 802a) and the reception time interval (e.g., reception time interval 804a) corresponding to SIM1 (212) are synchronized with the transmission time interval (e.g., transmission time interval 802b) and the reception time interval (e.g., reception time interval 804b)) corresponding to SIM2 (214), respectively, it may be difficult for the electronic device (400) to efficiently perform resource allocation for SIM1 (212) and SIM2 (214). For example, if the uplink data to be transmitted using SIM1 (212) is more than the downlink data of SIM1 (212) and the downlink data to be transmitted using SIM2 (214) is more than the uplink data of SIM2 (214), the electronic device (400) may perform resource allocation for the designated time intervals (e.g., time interval During time intervals T1 (802) and T3 (806), not all uplink data for SIM1 (212) may be transmitted, which may result in reduced data transmission efficiency.

[0152] FIG. 11A is a flowchart illustrating a procedure for transmitting and receiving signals based on a dual SIM according to one embodiment of the present disclosure. In one embodiment, at least one of the operations described below may be executed by a processor (410) (e.g., processor 120) of an electronic device (400) (e.g., electronic device (101)). In one embodiment, at least one of the operations described below may be omitted, modified, or executed in a different order. In one embodiment, the electronic device (400) may include a memory (405) that stores instructions for executing the operations described below, and the instructions, when executed by the processor (410), may cause the electronic device (400) to execute the operations described below.

[0153] Referring to FIG. 11A, in operation 1102, the electronic device (400) (e.g., processor (410)) may identify that a first frequency band (e.g., n41 band, n48 band, n77 band, n78 band, or n79 band) for communication associated with a first SIM (e.g., SIM1 (212)) is a TDD band, and may identify that a second frequency band (e.g., n41 band, n48 band, n77 band, n78 band, or n79 band) for communication associated with a second SIM (e.g., SIM2 (214)) is a TDD band that is the same as or at least partially overlaps with the first frequency band.

[0154] In operation 1104, the electronic device (400) (e.g., the processor (410)) may transmit a first signal on a first frequency band associated with a first SIM through a first antenna (e.g., the 1-1 antenna (910a) of FIG. 9), while receiving a second signal on a second frequency band associated with a second SIM through a second antenna (e.g., the 2-2 antenna (930b) and / or the 4-2 antenna (960b) of FIG. 9).

[0155] In one embodiment, the electronic device (400) (e.g., the processor (410)) can, during a TDD reception period associated with a second SIM that overlaps a TDD transmission period associated with a first SIM, activate a first transmit path (e.g., a power amplifier (912)) within an RF circuit (e.g., a first RF circuit (910)) coupled to a first antenna and activate a second receive path (e.g., a low-noise amplifier (936) and / or 966)) within an RF circuit (e.g., a second RF circuit (930) and / or a fourth RF circuit (960)) coupled to a second antenna, thereby transmitting the first signal via the first transmit path (e.g., a power amplifier (912)) within the first RF circuit (910), while allowing a second signal to be received via the second antenna and the second receive path. While the first transmit path within the first RF circuit is activated, the first receive path (e.g., low noise amplifier (920)) within the first RF circuit (910) may be deactivated.

[0156] In one embodiment, the electronic device (400) (e.g., the processor (410)) may receive a first reception signal (e.g., N41_Rx1 (1002) of FIG. 10) including a signal of a first frequency band and a signal of a second frequency band through a first antenna, while receiving a second reception signal (e.g., N41_Rx2 (1004) and / or N41_Rx4 (1008) of FIG. 10) including a signal of the first frequency band and a signal of the second frequency band through the second antenna. In one embodiment, the electronic device (400) (e.g., the processor (410)) can activate a receive path (e.g., a low-noise amplifier (920)) within a first RF circuit (910) connected to a first antenna and a receive path (e.g., a low-noise amplifier (936; 966)) within a second RF circuit (930; 960) connected to a second antenna, in a TDD receive period for a second SIM that overlaps a TDD receive period for a first SIM, thereby allowing the first receive signal to be received through the first antenna and the first receive path while the second receive signal is received through the second antenna and the second receive path.

[0157] In one embodiment, the electronic device (400) (e.g., the processor (410)) can identify a TDD reception interval (e.g., a downlink slot) associated with a second SIM that overlaps a TDD transmission interval (e.g., an uplink slot) associated with a first SIM and a TDD reception interval (e.g., a downlink slot) associated with the second SIM that overlaps a TDD reception interval (e.g., a downlink slot) associated with the first SIM based on slot format information received from a network (e.g., the first network node (202) and / or the second network node (204)).

[0158] In one embodiment, the electronic device (400) (e.g., the processor (410)) can use the second antenna to receive the second signal while transmitting the first signal via the first antenna based on identifying that the TDD uplink and downlink (UL / DL) settings for the first SIM are different from the TDD UL / DL settings for the second SIM.

[0159] In one embodiment, the electronic device (400) (e.g., the processor (410)) can receive a third signal on a first frequency band and a second frequency band via both the first antenna and the second antenna. The third signal can include a signal associated with the first SIM and a signal associated with the second SIM. In one embodiment, the electronic device (400) (e.g., the processor (410)) can cause the third signal to be received via the first antenna and the second antenna by activating receive paths (e.g., low noise amplifiers (936, 936, and / or 968)) within an RF circuit (e.g., the first RF circuit (910)) coupled to the first antenna and an RF circuit (e.g., the second RF circuit (930) and / or the fourth RF circuit (960)) coupled to the second antenna during a TDD transmission period associated with the second SIM that overlaps with a TDD transmission period associated with the first SIM.

[0160] In one embodiment, the second antenna may be configured to be used as a secondary path for MIMO reception (e.g., the second RF circuit (930) and / or the fourth RF circuit (960). In one embodiment, the first signal may include a first type of signal other than a sounding reference signal (SRS). In one embodiment, the first type of signal may include at least one of a physical uplink channel (PUSCH), a physical uplink control channel (PUCCH), or a physical random access channel (PRACH).

[0161] FIG. 11B is a flowchart illustrating a procedure for controlling an RF circuit during DSDA communication according to one embodiment of the present disclosure. In one embodiment, at least one of the operations described below may be executed by a processor (410) (e.g., processor 120) of an electronic device (400) (e.g., electronic device (101)). In one embodiment, at least one of the operations described below may be omitted, modified, or executed in a different order. In one embodiment, the electronic device (400) may include a memory (405) that stores instructions for executing the operations described below, and the instructions, when executed by the processor (410), may cause the electronic device (400) to execute the operations described below.

[0162] Referring to FIG. 11B, at operation 1112, the electronic device (400) (e.g., processor (410)) may identify that a DSDA operation based on dual SIMs (e.g., SIM1 (212) and SIM2 (214)) is initiated. In one embodiment, the electronic device (400) (e.g., processor (410)) may identify that both communications related to SIM1 (212) and communications related to SIM2 (214) are active.

[0163] In one embodiment, the electronic device (400) (e.g., processor (410)) may determine that a DSDA operation has been initiated while performing a communication (e.g., a voice call or data communication) associated with SIM1 (212), or may determine that a DSDA operation has been initiated based on the fact that a communication (e.g., a voice call or data communication) associated with SIM1 (212) and a communication (e.g., a data communication) associated with SIM2 (214) have been initiated substantially simultaneously. The electronic device (400) (e.g., processor (410)) may determine, and activate, radio resources (e.g., a transmit path and a receive path) for the communication associated with SIM1 (212) and radio resources (e.g., a transmit path and a receive path) for the communication associated with SIM2 (214) for the RFFE (430).

[0164] In operation 1114, the electronic device (400) (e.g., processor (410)) may determine whether a transmit signal related to SIM1 (212) and a receive signal related to SIM2 (214) collide. In one embodiment, the electronic device (400) (e.g., processor (410)) may determine that the transmit signal of SIM1 (212) and the receive signal of SIM2 (214) collide when a first frequency band (e.g., transmit frequency) for transmitting a transmit signal related to SIM1 (212) and a second frequency band (e.g., receive frequency) for receiving a receive signal related to SIM2 (214) are the same or at least partially overlap. In one embodiment, the electronic device (400) (e.g., processor (410)) may identify that a second frequency band associated with SIM2 (214) at least partially overlaps with the first frequency band, or is the same TDD band (e.g., at least one of n41, n48, n77, n78, or n79), based on identifying that a first frequency band associated with SIM1 (212) is a TDD band (e.g., at least one of n41, n48, n77, n78, or n79).

[0165] In one embodiment, the electronic device (400) (e.g., the processor (410)) can identify that a first frequency band for communications related to SIM1 (212) and a second frequency band for communications related to SIM2 (214) at least partially overlap, and that both the first frequency band and the second frequency band are used for TDD. In one embodiment, the electronic device (400) (e.g., processor (410)) may determine that a transmission signal of SIM1 (212) and a reception signal of SIM2 (214) collide based on the fact that time intervals for TDD communication associated with SIM1 (212) (e.g., transmission time intervals 1302a, 1306a and reception time intervals 1304a of FIG. 13) are synchronized with time intervals for TDD communication associated with SIM2 (214) (e.g., transmission time intervals 1302b, 1306b and reception time intervals 1304b)).

[0166] In one embodiment, operation 1114 may include at least one of operations 1206, 1208, or 1210 of FIG. 12A.

[0167] In one embodiment, if the transmission signal and the reception signal do not collide, the electronic device (400) (e.g., processor (410)) may terminate the procedure. If it is determined that the transmission signal of SIM1 (212) and the reception signal of SIM2 (214) will collide, the electronic device (400) (e.g., processor (410)) may proceed to operation 1116. In one embodiment, the electronic device (400) (e.g., processor (410)) may determine that the transmission frequency for communication related to the first SIM and the reception frequency for communication related to the second SIM collide based on receiving information from a network (e.g., network node (204)) instructing to perform a collision avoidance operation related to dual SIMs, and may proceed to operation 1116.

[0168] In operation 1116, the electronic device (400) (e.g., the processor (410)) identifies that a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)), which is at least a portion of a transmission time interval (e.g., transmission time interval 1302a or transmission time interval 1306a)) for TDD communication associated with SIM1 (212), is a reception time interval for TDD communication associated with SIM2 (214), and during the first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)), at least one reception path (e.g., a low-noise signal connected to a second-second antenna (930b)) corresponding to SIM2 (214) that is distinct from a transmission path (e.g., a power amplifier (912) and a first-first antenna (910a)) associated with SIM1 (212). A low noise amplifier (966) connected to the amplifier (936) and / or the 4-2 antenna (960b) can be activated.

[0169] In one embodiment, the electronic device (400) (e.g., the processor (410)) may identify a reception time interval (e.g., a downlink slot) for TDD communication associated with SIM2 (214) that overlaps a transmission time interval (e.g., an uplink slot) for TDD communication associated with SIM1 (212) based on slot format information indicated from a network (e.g., the first network node (202) and / or the second network node (204)), and activate at least one reception path corresponding to SIM2 (214) in the reception time interval.

[0170] In one embodiment, the electronic device (400) (e.g., processor (410)) may determine to use the first time interval if the amount of downlink data to be received associated with SIM2 (214) is greater than a specified threshold (e.g., amount of downlink data to be received associated with SIM1 (212)). In one embodiment, the electronic device (400) (e.g., processor (410)) may determine to use the first time interval if the amount of uplink data to be transmitted associated with SIM2 (214) is less than a specified threshold (e.g., amount of uplink data to be transmitted associated with SIM1 (212)).

[0171] In one embodiment, the electronic device (400) (e.g., processor (410)) can determine the length of the first time interval and the number of receiving paths to activate based on the amount of downlink data and / or the amount of uplink data associated with SIM2 (214). In one embodiment, the electronic device (400) (e.g., processor (410)) can activate at least one receiving path specified in the first time interval based on receiving from a network (e.g., network node (204)) the length and location of the first time interval and information instructing to perform a receiving operation in the first time interval.

[0172] In one embodiment, the electronic device (400) (e.g., the processor (410)) may activate a designated transmit path (e.g., the first RF circuit (910)) to transmit a transmit signal (e.g., SIM1 N41_Tx (1402) of FIG. 14) related to SIM1 (212) during a transmit time interval (e.g., transmit time intervals 1302a, 1306a)) for TDD communication related to SIM1 (212). In one embodiment, the transmit signal may include a first type of signal other than an SRS. In one embodiment, the first type of signal may include at least one of a PUSCH, a PUCCH, or a PRACH.

[0173] In one embodiment, the electronic device (400) (e.g., the processor (410)) can activate a designated receive path (e.g., the second RF circuit (930) and / or the fourth RF circuit (960)) to receive a receive signal associated with SIM2 (214) (e.g., SIM2 N41_Rx (1404, 1406) of FIG. 14) during a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)) that is part of the transmission time interval while the transmission path is active in the transmission time interval.

[0174] In one embodiment, the act of activating the receive path may include providing power to elements associated with reception of SIM2 (214) within the second RF circuit (930) and / or the fourth RF circuit (960) (e.g., low noise amplifiers (936 and / or 966)), setting a gain for the low noise amplifiers (936 and / or 966), and / or controlling an antenna switch (e.g., antenna switches (932 and / or 962)) to connect an antenna (e.g., antennas (930b and / or 960b)) to a designated bandpass filter (e.g., an n41 filter).

[0175] In one embodiment, the electronic device (400) (e.g., the processor (410)) may transmit information to a network (e.g., a network node (204) corresponding to SIM2 (214)) indicating that the electronic device (400) is capable of receiving signals related to SIM2 (214) during the first time interval (e.g., time interval T1' (1302c) and time interval T3' (1306c)). Based on the information, the network node (204) may transmit data and / or control signals related to SIM2 (214) to the electronic device (400) over a second frequency band during the first time interval (e.g., time interval T1' (1302c) and time interval T3' (1306c)). In one embodiment, the electronic device (400) (e.g., the processor (410)) may transmit the information to the network when SIM2 (214) is activated.

[0176] At operation 1118, the electronic device (400) (e.g., processor (410)) may determine whether transmission of an SRS related to SIM1 (212) is required. In one embodiment, the electronic device (400) (e.g., processor (410)) may determine whether SRS transmission is set based on system information (e.g., SRS setting information) received from a network (e.g., network node (202)) corresponding to SIM1 (212) when communication based on SIM1 (212) is activated. If it is determined that transmission of an SRS is required, the electronic device (400) (e.g., processor (410)) may proceed to operation 1120. If transmission of an SRS is not required, the electronic device (400) (e.g., processor (410)) may return to operation 1116.

[0177] In operation 1120, the electronic device (400) (e.g., the processor 410) may identify a time interval (e.g., an SRS transmission interval) in which an SRS is transmitted from the network (e.g., a network node 202) based on SRS configuration information received from a network corresponding to SIM1 (212). In one embodiment, the SRS transmission interval may include orthogonal frequency division multiple (OFDM) symbols including an SRS (e.g., SRS transmission symbols). In one embodiment, the SRS configuration information may include parameters indicating a position and a number of SRS transmission symbols. In one embodiment, the electronic device (400) (e.g., the processor 410) may receive the SRS configuration information from the network node (202) based on SIM1 (212) being activated. In one embodiment, the electronic device (400) (e.g., the processor 410) may identify an SRS transmission interval included in the first time interval.

[0178] At operation 1122, the electronic device (400) (e.g., processor (410)) can disable the receive path (e.g., low noise amplifier (936) within the second RF circuit (930) and / or low noise amplifier (966) within the fourth RF circuit (960)) associated with SIM2 (214) during the identified SRS transmission period (e.g., while an SRS corresponding to SIM1 (212) is transmitted via the transmit path (e.g., first RF circuit (910)). By disabling the receive path, the electronic device (400) (e.g., processor (410)) can prevent at least a portion of the SRS from entering the low noise amplifier (936) within the second RF circuit (930) and / or the low noise amplifier (966) within the fourth RF circuit (960).

[0179] In one embodiment, during a transmission time interval for TDD communication related to SIM1 (212) (e.g., transmission time intervals 1302a, 1306a) while a transmission path related to SIM1 (212) (e.g., a power amplifier (912) within the first RF circuit (910)) is activated and an RF signal including an SRS corresponding to SIM1 (212) (e.g., SIM1 N41_SRS (1702) of FIG. 17) is transmitted through the transmission path (e.g., during the SRS transmission interval), the electronic device (400) (e.g., the processor (410)) can deactivate the reception path corresponding to SIM2 (214) (e.g., a low-noise amplifier (936) within the second RF circuit (930) and / or a low-noise amplifier (966) within the fourth RF circuit (960)). In one embodiment, the electronic device (400) (e.g., processor (410)) may disable the receiving path during an SRS transmission interval included in the first time interval.

[0180] In one embodiment, the act of disabling the receive path may include powering down components (e.g., low noise amplifiers (936 and / or 966)) associated with reception of SIM2 (214) within the receive path (e.g., second RF circuit (930) and / or fourth RF circuit (960)), and / or controlling an antenna switch (e.g., antenna switches (932 and / or 962)) such that an antenna (e.g., antennas (930b and / or 960b)) is not connected to a designated bandpass filter (e.g., n41 filter).

[0181] In embodiments of the present disclosure, SRS can be used to measure the status of an uplink channel that an electronic device (e.g., electronic device (400)) transmits to a network (e.g., network node (202)). The network node (202) can measure the uplink channel status based on the SRS received from the electronic device (400) and notify the electronic device (400) of the measurement result, so that the electronic device (400) can perform uplink transmission based on the measurement result. The electronic device (400) can adjust a transmission method (e.g., modulation and coding scheme (MCS)) for uplink transmission based on the measurement result based on the SRS.

[0182] In one embodiment, when communication between the electronic device (400) and the network node (202) is based on TDD, the network node (202) can estimate the downlink channel status using the measurement results of the SRS based on channel reciprocity. In the case of TDD, since the uplink channel and the downlink channel use the same frequency over time, the measurement results of the SRS can be considered to represent the downlink channel status. The network node (202) can adjust a transmission method (e.g., MIMO rank and / or MCS) for downlink transmission based on the measurement results of the SRS and instruct the electronic device (400) on the adjusted transmission method.

[0183] Since SRS is used for channel estimation, the electronic device (400) can transmit the SRS at a higher power than other channels or other signals. When the SRS corresponding to SIM1 (212) is transmitted through a transmission path designated for SIM1 (212) (e.g., the first RF circuit (910)), the electronic device (400) can avoid the SRS from colliding with the reception signal of SIM2 (214) by blocking reception of SIM2 (214) through operations 1216 and 1218 of FIG. 12. The electronic device (400) can determine the SRS transmission period based on the positions and number of SRS transmission symbols identified from the SRS configuration information, and deactivate the reception path (e.g., the second RF circuit (930) and / or the fourth RF circuit (960)) associated with SIM2 (214) during the SRS transmission period.

[0184] FIG. 12A is a flowchart illustrating a control procedure of an RF circuit for supporting dual SIM according to an embodiment of the present disclosure. In one embodiment, at least one of the operations described below may be executed by a processor (410) (e.g., processor 120) of an electronic device (400) (e.g., electronic device (101)). In one embodiment, at least one of the operations described below may be omitted, modified, or executed in a different order. In one embodiment, the electronic device (400) may include a memory (405) that stores instructions for executing the operations described below, and the instructions, when executed by the processor (410), may cause the electronic device (400) to execute the operations described below.

[0185] Referring to FIG. 12A, in operation 1202, an electronic device (400) (e.g., a processor (410)) may perform communication (e.g., TDD communication) related to SIM1 (212) through a first frequency band.

[0186] At operation 1204, the electronic device (400) (e.g., processor (410)) may identify that SIM2 (214) is activated to initiate communication (e.g., TDD communication) related to SIM2 (214) while performing communication (e.g., TDD communication) related to SIM1 (212). If SIM2 (214) is not activated, the electronic device (400) (e.g., processor (410)) may terminate the procedure. If it is identified that SIM2 (214) is activated, the electronic device (400) (e.g., processor (410)) may proceed to operation 1206.

[0187] In operation 1206, the electronic device (400) (e.g., the processor (410)) can identify that a transmit frequency (e.g., a first frequency band or a designated transmit frequency channel within the first frequency band) for communication associated with SIM1 (212) at least partially overlaps with a receive frequency (e.g., a second frequency band or a designated receive frequency channel within the second frequency band) for communication associated with SIM2 (214).

[0188] At operation 1208, the electronic device (400) (e.g., processor (410)) can identify that a time interval for TDD communication related to SIM1 (212) (e.g., including a TDD time interval, a transmission time interval, and a reception time interval) is synchronized with a time interval for TDD communication related to SIM2 (214) (e.g., including a TDD time interval, a transmission time interval, and a reception time interval).

[0189] In operation 1210, the electronic device (400) (e.g., processor (410)) may determine whether the interference power level caused by the transmission of SIM1 (212) to the reception frequency of SIM2 (214) is less than the reception signal strength of SIM2 (214) by a specified value (e.g., margin value Δ). If the interference level is not less than the reception signal strength by the specified value, the electronic device (400) (e.g., processor (410)) may terminate the procedure. If the interference level is less than the reception signal strength by the specified value, the electronic device (400) (e.g., processor (410)) may proceed to operation 1212.

[0190] In operation 1212, the electronic device (400) (e.g., processor (410)) may identify a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)) that is at least a portion of a transmission time interval (e.g., transmission time intervals 1302a, 1306a)) for TDD communication associated with SIM1 (212).

[0191] In one embodiment, operations 1206, 1208, and 1210 may be omitted or performed by a network (e.g., network node (204)), and the electronic device (400) (e.g., processor (410)) may receive information from the network (e.g., network node (204)) instructing it to activate a receiving path in a first time interval.

[0192] At operation 1214, the electronic device (400) (e.g., the processor (410)) may activate at least one receive path (e.g., the second RF circuit (930) and / or the fourth RF circuit (960)) associated with SIM2 (214) during the first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)).

[0193] In operation 1216, the electronic device (400) (e.g., processor (410)) may identify an SRS transmission interval in which an SRS related to SIM1 (212) is transmitted. In one embodiment, the electronic device (400) (e.g., processor (410)) may identify the SRS transmission interval based on SRS configuration information received from a network (e.g., network node (202)). In one embodiment, the electronic device (400) (e.g., processor (410)) may identify the SRS transmission interval included in the first time interval.

[0194] In operation 1218, the electronic device (400) (e.g., the processor (410)) may disable at least one receiving path (e.g., the second RF circuit (930) and / or the fourth RF circuit (960)) associated with SIM2 (214) during the SRS transmission period.

[0195] In one embodiment, the electronic device (400) (e.g., processor (410)) can measure an isolation value (A) between a transmit antenna (e.g., antenna (910a)) designated for communication with SIM1 (212) and a receive antenna (e.g., antenna (930b) and / or antenna (960b)) designated for communication with SIM2 (214). In one embodiment, the electronic device (400) (e.g., processor (410)) can read the isolation value (A) measured at RFFE (430) and stored in memory (405) from memory (405).

[0196] In one embodiment, the electronic device (400) (e.g., processor (410)) can identify a transmit (Tx) power (B) determined to be used for communication with SIM1 (212). In one embodiment, the electronic device (400) (e.g., processor (410)) can obtain the transmit power (B) from RFFE (430) or memory (405).

[0197] In one embodiment, the electronic device (400) (e.g., processor (410)) can identify a measured received signal strength (C) (e.g., received signal strength indicator (RSSI)) for a communication associated with SIM2 (214). In one embodiment, the electronic device (400) (e.g., processor (410)) can obtain the received signal strength (C) from RFFE (430) or memory (405).

[0198] In one embodiment, the electronic device (400) (e.g., processor (410)) can identify a frequency offset (D) between a transmit center frequency, which is the center of a transmit frequency designated to be used for communication of SIM1 (212), and a receive center frequency, which is the center of a receive frequency designated to be used for communication of SIM2 (214). In one embodiment, the electronic device (400) (e.g., processor (410)) can, when initiating communication of SIM1 (212), be assigned at least one transmit frequency channel from a plurality of frequency channels within a first frequency band designated to be used for communication of SIM1 (212) from a network (e.g., network node (202)). Additionally, when the electronic device (400) (e.g., the processor (410)) initiates communication of SIM2 (214), it may be allocated at least one reception frequency channel from a network (e.g., the network node (204)) among a plurality of frequency channels within a second frequency band designated to be used for communication of SIM2 (214). The frequency offset (D) may be defined as the interval between the center frequency of the transmission frequency channel and the center frequency of the reception frequency channel.

[0199] In one embodiment, the electronic device (400) (e.g., processor (410)) may measure an adjacent channel leakage ratio (ACLR) (E) at a receive center frequency designated to be used for communication of SIM2 (214) based on the frequency difference (D). The ACLR may represent a power level difference between a transmit frequency designated to be used for communication of SIM1 (212) and a receive frequency of SIM2 (214).

[0200] FIG. 12b is a diagram for explaining the power level difference of dual SIMs according to one embodiment of the present disclosure.

[0201] Referring to FIG. 12b, the frequency offset D (1224) may be defined as the difference between the transmission center frequency (1220) of the transmission frequency channel designated for communication of SIM1 (212) and the reception center frequency (1222) of the reception frequency channel designated for communication of SIM2 (214). The ACLR (E) in the reception frequency channel is the difference in power level between the transmission center frequency (1220) of the transmission frequency channel and a frequency location (e.g., the center frequency (1222) of the reception frequency channel) that is D (1224) away from the reception center frequency (1220), expressed in dBc units. The ACLR (E) may be measured through the second RF circuit (930) or the fourth RF circuit (960) based on the transmission frequency channel and the reception frequency channel allocated from the network and a designated RBW (resolution bandwidth).

[0202] In one embodiment, the electronic device (400) (e.g., the processor (410)) may calculate B + E - A = F, where F may represent an interference power level caused by the transmission signal of SIM1 (212) to the reception signal of SIM2 (214). The interference power level F may be smaller as the transmission power (B) of SIM1 (212) is lower, the linearity of a power amplifier (e.g., power amplifier 912) associated with SIM1 (212) is better, the isolation value (A) is larger, and the transmission frequency channel of SIM1 (212) and the reception frequency channel of SIM2 (214) are far apart.

[0203] In one embodiment, in operation 1210 of FIG. 12A, the electronic device (400) (e.g., the processor (410)) may determine whether the difference (CF) between the received signal strength (C) of SIM2 (214) and the F is greater than a specified value (e.g., Δ). If the CF is greater than or equal to the specified value (e.g., CF > Δ), the electronic device (400) (e.g., the processor (410)) may proceed to operation 1212. If the CF is not greater than Δ, the electronic device (400) (e.g., the processor (410)) may determine that a collision does not occur between the transmitted signal of SIM1 (212) and the received signal of SIM2 (214) and may terminate the procedure.

[0204] FIG. 13 is a diagram for explaining TDD timing for avoiding signal collision of dual SIM according to one embodiment of the present disclosure.

[0205] Referring to FIG. 13, transmission time intervals (e.g., transmission time interval 1302a and transmission time interval 1306a) for TDD communication of SIM1 (212) may overlap with transmission time intervals (e.g., transmission time interval 1302b and transmission time interval 1306b)) for TDD communication of SIM2 (214). In one embodiment, the transmission time interval (1302a) corresponding to SIM1 (212) within time interval T1 (1302) may overlap with the transmission time interval (1302b) corresponding to SIM2 (214), and the transmission time interval (1306a) corresponding to SIM1 (212) within time interval T3 (1306) may overlap with the transmission time interval (1306b) corresponding to SIM2 (214).

[0206] In one embodiment, the reception time intervals (e.g., transmission time intervals 1304a) for TDD communication of SIM1 (212) may overlap with the reception time intervals (e.g., reception time intervals 1304b) for TDD communication of SIM2 (214). In one embodiment, within the time interval T2 (1304), the reception time interval (1304a) corresponding to SIM1 (212) may overlap with the reception time interval (1304b) corresponding to SIM2 (214).

[0207] In one embodiment, the electronic device (400) may activate a transmission path associated with SIM1 (212) (e.g., the first RF circuit (910) of FIG. 9) and a transmission path associated with SIM2 (212) (e.g., the third RF circuit (940) of FIG. 9) within a time interval T1 (1302) that includes a transmission time interval (1302a) corresponding to SIM1 (212) and a transmission time interval (1302b) corresponding to SIM2 (214).

[0208] In one embodiment, the electronic device (400) may deactivate a transmit path (e.g., a first RF circuit (910) of FIG. 9) associated with SIM1 (212) and activate a receive path associated with SIM2 (214) during a first time interval (e.g., time interval T1' (1302c)) that is at least a portion of a transmit time interval (1302a) corresponding to SIM1 (212). In one embodiment, the electronic device (400) may transmit a transmission signal (e.g., SIM2 N41_Tx (904) of FIG. 9) of SIM2 (214) through a designated transmission path (e.g., the third RF circuit (940) of FIG. 9) during the remaining transmission time interval (1302b) excluding the time interval T1' (1302c) among the time interval T1 (1302), and may receive reception signals (e.g., SIM2 N41_Rx1 (1404) and / or SIM2 N41_Rx2 (1406)) of SIM2 (214) through a reception path (e.g., the second RF circuit (930) and / or the fourth RF circuit (960)) during the time interval T1' (1302c). Time interval T1' (1302c) may be positioned anywhere within time interval T1 (1302) as at least a portion of time interval T1 (1302). In one embodiment, the electronic device (400) may activate a receive path designated for use with MIMO (e.g., a second RF circuit (930) and / or a fourth RF circuit (960)) that is a different hardware configuration than the RF circuit used for transmission of SIM1 (212) (e.g., a first RF circuit (210)) in time interval T1' (1302c).

[0209] In one embodiment, the electronic device (400) can activate receive paths (e.g., the first RF circuit (910), the second RF circuit (930), the third RF circuit (940), and / or the fourth RF circuit (960)) during a time interval T2 (1304) that includes a receive time interval (1304b) that overlaps a receive time interval (1304a) corresponding to SIM1 (212), and receive one or more receive signals (e.g., N41_Rx1 (1002), N41_Rx2 (1004), N41_Rx3 (1006), and / or N41_Rx4 (1008)) through the receive paths.

[0210] In one embodiment, the electronic device (400) may deactivate a transmit path associated with SIM1 (212) and activate a receive path associated with SIM2 (214) during a first time interval (e.g., time interval T3' (1306c)) that is at least a portion of a transmit time interval (1306a) corresponding to SIM1 (212). In one embodiment, the electronic device (400) may transmit a transmission signal (e.g., SIM2 N41_Tx (904) of FIG. 9) of SIM2 (214) through a transmission path (e.g., the third RF circuit (940) of FIG. 9) during the remaining transmission time interval (1306b) excluding the time interval T3' (1306c) among the time interval T3 (1306), and may receive reception signals (e.g., SIM2 N41_RX1 (1404) and / or SIM2 N41_RX2 (1406)) of SIM2 (214) through a reception path (e.g., the second RF circuit (930) and / or the fourth RF circuit (960)) during the time interval T3' (1306c). Time interval T3' (1306c) may be positioned anywhere within time interval T3 (1306) as at least a portion of time interval T3' (1306). In one embodiment, the electronic device (400) may activate a receive path designated for use for MIMO (e.g., the second RF circuit (930) and / or the fourth RF circuit (960)) in time interval T3' (1306c).

[0211] In one embodiment, a designated reception time interval of a first frequency band associated with SIM1 (212) may overlap with a designated reception time interval of a second frequency band associated with SIM2 (214) within a time interval T4 (1308). The electronic device (400) may receive one or more reception signals (e.g., N41_Rx1 (1002), N41_Rx2 (1004), N41_Rx3 (1006), and / or N41_Rx4 (1008)) associated with SIM1 (212) and / or SIM2 (214) within the time interval T4 (1308).

[0212] FIG. 14 is a diagram showing a signal flow for frequency collision avoidance during DSDA operation according to one embodiment of the present disclosure.

[0213] Referring to FIG. 14, an RFFE (430) according to one embodiment may include a first RF circuit (910), a second RF circuit (930), a third RF circuit (940), and a fourth RF circuit (960). A description of the first RF circuit (910), the second RF circuit (930), the third RF circuit (940), and the fourth RF circuit (960) may refer to FIG. 9.

[0214] In one embodiment, in a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)) that is at least a portion of a transmission time interval (e.g., transmission time interval 1302a or transmission time interval 1306a) for TDD communication associated with SIM1 (212), the electronic device (400) (e.g., processor (410)) may activate receive paths associated with the n41 band of the second RF circuit (930) and / or the fourth RF circuit (960) while a transmit path (e.g., first RF circuit (910)) associated with the first frequency band (e.g., n41 band) is activated.

[0215] In one embodiment, for a transmission operation in the n41 band associated with SIM1 (212) in a transmission time interval (e.g., transmission time interval 1302a or transmission time interval 1306a), a power amplifier (912) can amplify an RF signal transmitted from a transceiver (e.g., transceiver (420)) and transmit the amplified signal to an n41 filter in a filter block (916) via a band switch (1414) and a TDD switch (1416a). The n41 filter can filter the amplified signal to the n41 band, and the filtered signal (e.g., SIM1 N41_Tx (1402)) can be transmitted to the 1-1 antenna (1410a) via an antenna switch (918). The third RF circuit (940) can be deactivated in the transmission time interval. During the remaining time intervals (e.g., time interval (1302b) or time interval (1306b)) excluding the first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)) within the above transmission time interval, the second RF circuit (930) and the fourth RF circuit (960) may be deactivated.

[0216] In one embodiment, during a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)), the electronic device (400) can activate the second RF circuit (930) by supplying power to the low noise amplifier (936) of the second RF circuit (930) and controlling the antenna switch (932) so that the input of the n41 filter within the filter block (934) is connected to the 3-2 antenna (930b). In one embodiment, for the reception operation of the n41 band corresponding to SIM2 (214), the 2-2 antenna (930b) receives an RF signal (e.g., SIM2 N41_Rx1 (1404)), and the RF signal can be transmitted to the n41 filter within the filter block (934) via the antenna switch (932). The n41 filter filters the RF signal into the n41 band, and the filtered signal can be transmitted to a low noise amplifier (936). The low noise amplifier (936) amplifies the filtered signal, and the amplified signal can be transmitted to a transceiver (e.g., transceiver (420)) for baseband processing corresponding to SIM2 (214).

[0217] In one embodiment, during a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)), the electronic device (400) can supply power to the low noise amplifier (966) of the fourth RF circuit (960) and control the antenna switch (962) so that the input of the n41 filter in the filter block (964) is connected to the 4-2 antenna (960b). In one embodiment, for the reception operation of the n41 band corresponding to SIM2 (214), the 4-2 antenna (960b) can receive an RF signal (e.g., N41_Rx2 (1406)), and the RF signal can be transmitted to the n41 filter in the filter block (964) through the antenna switch (962). The n41 filter can filter the RF signal to the n41 band, and the filtered signal can be transmitted to the low noise amplifier (966). A low noise amplifier (966) amplifies the filtered signal, and the amplified signal can be transmitted to a transceiver (e.g., transceiver (420)) for baseband processing corresponding to SIM2 (214).

[0218] FIG. 15 is a diagram for explaining transmission of SRS related to dual SIM according to one embodiment of the present disclosure.

[0219] Referring to FIG. 15, an RFFE (430) according to one embodiment may include a first RF circuit (910), a second RF circuit (930), a third RF circuit (940), and a fourth RF circuit (960). A description of the first RF circuit (910), the second RF circuit (930), the third RF circuit (940), and the fourth RF circuit (960) may refer to FIG. 9.

[0220] In one embodiment, in a transmission time interval (e.g., transmission time interval 1302a or transmission time interval 1306a) for TDD communication related to SIM1 (212), the electronic device (400) (e.g., processor 410) may transmit a transmission signal related to SIM1 (212) through a transmission path associated with a first frequency band (e.g., n41 band) of the first RF circuit (910). The transmission signal may be SIM1 N41_SRS Tx (1502) including SRS. The SIM1 N41_SRS Tx (1502) may be transmitted to the antenna (910a and / or 910b) through a power amplifier (912) and an n41 filter of the first RF circuit (910).

[0221] In one embodiment, the SIM1 N41_SRS Tx (1502) output from the first RF circuit (910) may be transmitted not only through the antenna (910a and / or 910b), but also be delivered to the TRX1 port of the second RF circuit (930) and / or the fourth RF circuit (960), and may also be transmitted through the antenna (e.g., the second-second antenna (930b) and / or the fourth-second antenna (960b)) of the second RF circuit (930) and / or the fourth RF circuit (960).

[0222] In one embodiment, when the second RF circuit (930) and / or the fourth RF circuit (960) is activated in a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)), the SIM1 N41_SRS Tx (1502) transmitted through the TRX1 port of the second RF circuit (930) and / or the fourth RF circuit (960) may be introduced into the n41 filter within the filter block (934) and / or the filter block (964). The SIM1 N41_SRS Tx (1502) may be mixed with the SIM2 N41_Rx1 (1504) received through the 2-2 antenna (930b) within the 2nd RF circuit (930) and transmitted to the low noise amplifier (936), and the high power of the SIM1 N41_SRS Tx (1502) may damage the low noise amplifier (1536). Similarly, the SIM1 N41_SRS Tx (1502) may be mixed with the SIM2 N41_Rx2 (1506) received through the 4-2 antenna (960b) within the 4th RF circuit (960) and transmitted to the low noise amplifier (966), and the high power of the SIM1 N41_SRS Tx (1502) may damage the low noise amplifier (966).

[0223] In embodiments of the present disclosure, in order to prevent damage to a low-noise amplifier (e.g., a low-noise amplifier (936) or a low-noise amplifier (966)) due to high power of an SRS, the receiving path (e.g., n41 filters, a low-noise amplifier (936), and / or a low-noise amplifier (966)) of the second RF circuit (930) and / or the fourth RF circuit (960) may be disabled during a period set to transmit an SRS (e.g., an SRS transmission period). The electronic device (400) may identify an SRS transmission period based on SRS configuration information provided from a network.

[0224] FIG. 16a and FIG. 16b are diagrams for explaining identification of an SRS transmission section according to one embodiment of the present disclosure.

[0225] Referring to FIG. 16A, a radio frame (1602) used for communication between an electronic device (400) and a network (e.g., a network node (202) or a network node (204)) includes 10 subframes, each subframe (1604) includes 2 slots, and each slot (1606) may include a plurality (e.g., 14) symbols.

[0226] Referring to FIG. 16b, each of the 20 slots included in one radio frame (e.g., radio frame (1602)) can be designated as either a downlink slot (e.g., "D"), an uplink slot (e.g., "U"), or a special slot (e.g., "S") by the TDD UL / DL configuration. The special slot can be flexibly used as either a downlink or an uplink.

[0227] In one embodiment, the SRS configuration information may indicate symbol positions at which SRSs (e.g., R1, R3, R2, R4) are transmitted within slot 3 (1622) and slot 13 (1624), which are used as special slots within a radio frame (e.g., radio frame (1602)). In one embodiment, the SRS configuration information may include the start positions of SRS transmission symbols within each slot (e.g., slot 3 (1622) or slot 13 (1624)) and the number of SRS transmission symbols.

[0228] In one embodiment, the electronic device (400) may receive SRS configuration information from a network (e.g., network node (202)) corresponding to SIM1 (214) and identify an SRS transmission interval including one or more SRS transmission symbols based on the SRS configuration information.

[0229] FIG. 17 is a diagram for explaining collision avoidance in an SRS transmission section according to one embodiment of the present disclosure.

[0230] Referring to FIG. 17, an RFFE (430) according to one embodiment may include a first RF circuit (910), a second RF circuit (930), a third RF circuit (940), and a fourth RF circuit (960). A description of the first RF circuit (910), the second RF circuit (930), the third RF circuit (940), and the fourth RF circuit (960) may refer to FIG. 9.

[0231] In one embodiment, in a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)) that is at least a portion of a transmission time interval (e.g., transmission time interval 1302a or transmission time interval 1306a) for TDD communication associated with SIM1 (212), the electronic device (400) (e.g., processor (410)) may activate receive paths associated with the n41 band of the second RF circuit (930) and / or the fourth RF circuit (960) while a transmit path (e.g., first RF circuit (910)) associated with the first frequency band (e.g., n41 band) is activated.

[0232] In one embodiment, for a transmission operation in the n41 band associated with SIM1 (212) in a transmission time interval (e.g., transmission time interval 1302a or transmission time interval 1306a), a power amplifier (912) can amplify an RF signal transmitted from a transceiver (e.g., transceiver (420)) and transmit the amplified signal to an n41 filter in a filter block (916) via a band switch (1414) and a TDD switch (1416a). The n41 filter can filter the amplified signal to the n41 band, and the filtered signal (e.g., SIM1 N41_SRS Tx (1702)) can be transmitted to the 1-1 antenna (1410a) via an antenna switch (918). The third RF circuit (940) can be deactivated in the transmission time interval.

[0233] In one embodiment, during a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)), the electronic device (400) can activate the second RF circuit (930) by supplying power to the low noise amplifier (936) of the second RF circuit (930) and controlling the antenna switch (932) so that the input of the n41 filter within the filter block (934) is connected to the second-2 antenna (930b). In one embodiment, for the reception operation of the n41 band corresponding to SIM2 (214), the second-2 antenna (930b) receives an RF signal (e.g., SIM2 N41_Rx2 (1404)), and the RF signal can be transmitted to the n41 filter within the filter block (934) via the antenna switch (932). The n41 filter filters the RF signal into the n41 band, and the filtered signal can be transmitted to a low noise amplifier (936). The low noise amplifier (936) amplifies the filtered signal, and the amplified signal can be transmitted to a transceiver (e.g., transceiver (420)) for baseband processing corresponding to SIM2 (214).

[0234] In one embodiment, during a first time interval (e.g., time interval T1' (1302c) or time interval T3' (1306c)), the electronic device (400) can supply power to the low noise amplifier (966) of the fourth RF circuit (960) and control the antenna switch (962) so that the input of the n41 filter in the filter block (964) is connected to the 4-2 antenna (960b). In one embodiment, for the reception operation of the n41 band corresponding to SIM2 (214), the 4-2 antenna (960b) can receive an RF signal (e.g., N41_Rx2 (1406)), and the RF signal can be transmitted to the n41 filter in the filter block (964) through the antenna switch (962). The n41 filter can filter the RF signal to the n41 band, and the filtered signal can be transmitted to the low noise amplifier (966). A low noise amplifier (966) amplifies the filtered signal, and the amplified signal can be transmitted to a transceiver (e.g., transceiver (420)) for processing of the baseband corresponding to SIM2 (214).

[0235] In one embodiment, during an SRS transmission interval (e.g., during an SRS transmission interval within a first time interval), the electronic device (400) can disable a receive path (e.g., a low-noise amplifier (936)) within the second RF circuit (1730) and / or a receive path (e.g., a low-noise amplifier (966)) within the fourth RF circuit (1760) so that a transmit signal (e.g., SIM1 N41_SRS Tx (1702)) including an SRS corresponding to SIM1 (212) output from the first RF circuit (910) does not enter the low-noise amplifier (936) within the second RF circuit (1730) and / or the low-noise amplifier (966) within the fourth RF circuit (1760). In one embodiment, the electronic device (400) may control an antenna switch (e.g., antenna switch (932) and / or antenna switch (962)) to cut off power to the low noise amplifier (936) and / or the low noise amplifier (966) and / or to prevent an antenna (e.g., the 2-2 antenna (930b) and / or the 4-2 antenna (960b)) from being connected to a designated bandpass filter (e.g., an n41 filter).

[0236] Embodiments of the present disclosure can improve downlink throughput by extending the reception time interval for downlink data while avoiding collisions between transmit and receive signals in a DSDA operation that shares RFFE for a combination of a first frequency band designated as TDD and a second frequency band designated as TDD.

[0237] Embodiments of the present disclosure can improve transmission performance of uplink data and reduce power consumption by applying transmit hopping in a DSDA operation that shares RFFE for a combination of a first frequency band designated as TDD and a second frequency band designated as TDD.

[0238] Embodiments of the present disclosure can reduce the influence of the transmission power of SIM1 on the reception performance of SIM2 using the same frequency band by considering the isolation measurement value between antennas, transmission power, reception signal strength, and frequency interval in an electronic device (400) of a foldable structure in which the influence of interference between antennas is very large.

[0239] An electronic device (400) according to one embodiment may include a radio frequency (RF) front end (FE) (430) including a first RF circuit (e.g., the first RF circuit (910) of FIG. 9) including a first transmit path (e.g., an n41 filter in a power amplifier (912) and a filter block (916)) and a first receive path (e.g., an n41 filter and a low-noise amplifier (920) in the filter block (916)) and a second RF circuit (e.g., the second RF circuit (930) and / or the fourth RF circuit (960) of FIG. 9) including a second receive path (e.g., an n41 filter and a low-noise amplifier (936) in the filter block (934)), a memory (405) storing instructions, and at least one processor (410) operatively connected to the RFFE and the memory. The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to identify that a dual SIM dual active (DSDA) operation is initiated with respect to a first subscriber identification module (SIM) (e.g., SIM1 (212)) and a second SIM (e.g., SIM2 (214)). The instructions, when executed by the processor, may cause the electronic device to identify, based on the initiation of the DSDA operation, that a first frequency band (e.g., n41 band) for communications with respect to the first SIM and a second frequency band (e.g., n41 band) for TDD communications with respect to the second SIM are TDD bands, and that the first frequency band is the same as or at least partially overlaps with the second frequency band.The instructions, when executed by the processor, may cause the electronic device to activate the second receive path of the second RF circuit to perform a TDD reception operation associated with the second SIM over the second frequency band during a first time interval (1302c, 1306c) that is at least a portion of the first transmit time interval while the first transmit path of the first RF circuit is activated to perform a transmit operation associated with the first SIM over the first frequency band during a first transmit time interval (1302a, 1306a) for TDD communication associated with the first SIM.

[0240] In one embodiment, the instructions may cause the electronic device to identify that the first frequency band associated with the first SIM and the second frequency band associated with the second SIM at least partially overlap, identify that the first transmission time interval for TDD communications associated with the first SIM is synchronized with a second transmission time interval (1302b, 1302c) for TDD communications associated with the second SIM, and determine whether the first frequency channel collides with the second frequency channel based on an interference power level caused on a second frequency channel designated for the second SIM within the second frequency band by a first frequency channel designated for the first SIM within the first frequency band and a received signal strength measured on the second frequency channel.

[0241] In one embodiment, the instructions may cause the electronic device to identify a frequency offset between a transmit center frequency, which is a center of the first frequency channel associated with the first SIM, and a receive center frequency, which is a center of the second frequency channel associated with the second SIM, measure an adjacent channel leakage ratio (ACLR) at a frequency location that is the frequency offset from the transmit center frequency, and calculate the interference power level based on the transmit power associated with the first SIM, the ACLR, and the receive signal strength associated with the second SIM.

[0242] In one embodiment, the instructions may cause the electronic device to disable the second receiving path of the second RF circuit during a time interval (1302b) other than the first time interval among the second transmission time intervals.

[0243] In one embodiment, the instructions may cause the electronic device to identify that a first frequency channel associated with the first SIM and a second frequency channel associated with the second SIM collide based on receiving information from a network node that instructs the electronic device to perform a collision avoidance action related to dual SIMs.

[0244] In one embodiment, the instructions may cause the electronic device to identify an SRS transmission interval during which an SRS related to the first SIM is transmitted via the first transmission path, and to deactivate the second reception path of the second RF circuit during the SRS transmission interval within the first time interval.

[0245] In one embodiment, the instructions may cause the electronic device to receive SRS configuration information indicating a start position and number of SRS transmission symbols including an SRS corresponding to the first SIM from a first network node corresponding to the first SIM, and to identify the SRS transmission interval included in the first time interval based on the SRS configuration information.

[0246] In one embodiment, the length and / or location of the first time interval may be determined based on the amount of downlink data associated with the second SIM.

[0247] In one embodiment, the second receive path may include one or more MIMO (multiple input multiple output) receive paths for downlink MIMO reception.

[0248] In one embodiment, the second receiving path may include an antenna switch (932, 962) connected to an antenna configured to receive an RF signal of the receiving frequency (e.g., the 2-2 antenna (930b) and / or the 4-2 antenna (960b) of FIG. 9), a bandpass filter configured to filter the receiving frequency (e.g., an n41 filter in the filter block (934) and / or an n41 filter in the filter block (964)), and a low noise amplifier (LNA) (936, 966) configured to amplify an output signal of the bandpass filter.

[0249] In one embodiment, the instructions may cause the electronic device to activate the second receive path by controlling the antenna switch to connect the antenna to the bandpass filter, providing power to the low-noise amplifier, and / or setting a gain of the low-noise amplifier.

[0250] In one embodiment, at least one of the first frequency band or the second frequency band may be one of the n41 band, n48 band, n77 band, n78 band, or n79 band for 5G (5th generation) NR (new radio) communication.

[0251] An electronic device (400) according to one embodiment of the present disclosure may include a first antenna (910a) configured to transmit and receive RF (radio frequency) signals, a second antenna (930b; 960b) configured to receive RF signals, a memory (405) storing instructions, and at least one processor (410) operatively connected to the first antenna, the second antenna, and the memory. The instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to: when a first frequency band for communication associated with a first SIM (subscription identification module) (212) is a time division duplex (TDD) band and a second frequency band for communication associated with a second SIM (214) is a TDD band identical to or at least partially overlapping with the first frequency band: during a TDD transmission period for the first SIM, transmit a first signal (1402) on the first frequency band associated with the first SIM via the first antenna, receive a second signal (1404; 1406) on the second frequency band associated with the second SIM via the second antenna and not the first antenna, and during a TDD reception period for the first SIM, receive a third signal on the first frequency band associated with the first SIM and a fourth signal on the second frequency band associated with the second SIM via the first antenna.

[0252] In one embodiment, the instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to transmit, through the first antenna, a signal on the first frequency band associated with the first SIM and a signal on the second frequency band associated with the second SIM during a first TDD transmission period for the first SIM.

[0253] In one embodiment, the instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to transmit, during an SRS transmission period for the first SIM, a sounding reference signal (SRS) on the first frequency band associated with the first SIM through the first antenna and the second antenna, and to refrain from receiving a signal on the second frequency band associated with the second SIM while transmitting the SRS.

[0254] In one embodiment, the first signal may include a signal related to at least one of a physical uplink channel (PUSCH), a physical uplink control channel (PUCCH), or a physical random access channel (PRACH), excluding a sounding reference signal (SRS).

[0255] In one embodiment, the first antenna may be a primary antenna used for transmitting the first signal, transmitting the SRS, and receiving the downlink signal. In one embodiment, the second antenna may be a secondary antenna used for transmitting the SRS and receiving the downlink signal, and is not used for transmitting the first signal.

[0256] In one embodiment, the instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to, during the TDD transmission period for the first SIM, deactivate a first receive path (920) within a first RF circuit (910) coupled to the first antenna and activate a second receive path (936; 966) within a second RF circuit (930; 960) coupled to the second antenna, thereby allowing the second signal to be received via the second antenna and the second receive path.

[0257] In one embodiment, the instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to receive a first receive signal (1002) including a signal in the first frequency band and a signal in the second frequency band through the first antenna, while receiving a second receive signal (1004; 1008) including a signal in the first frequency band and a signal in the second frequency band through the second antenna.

[0258] In one embodiment, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to, in a second TDD reception interval for the second SIM overlapping with a TDD reception interval for the first SIM, activate the first receive path in the first RF circuit connected to the first antenna and the second receive path in the second RF circuit connected to the second antenna, so that while the first receive signal is received by the first antenna and the first receive path, the second receive signal is received via the second antenna and the second receive path, and in a third TDD reception interval for the second SIM overlapping with a TDD transmission interval for the first SIM, deactivate the first receive path and activate the first transmit path in the first RF circuit and the second receive path (936; 966) in the second RF circuit (930; 960), so that while the first signal is transmitted via the first antenna and the first transmit path, the second signal is transmitted via the second antenna. And can be received through the second receiving path.

[0259] In one embodiment, at least one of the first frequency band or the second frequency band may be one of the n41 band, the n48 band, the n77 band, the n78 band, or the n79 band for 5th generation new radio (5G NR) communications.

[0260] In one embodiment, the instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to disable a receive path connected to the second antenna while transmitting the SRS on the first frequency band associated with the first SIM through the first antenna and the second antenna. In one embodiment, the receive path may include at least one low noise amplifier (LNA) (936; 966).

[0261] In one embodiment, the electronic device may further include a third antenna (940b) configured to transmit RF signals. In one embodiment, the instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to transmit a signal (904) on the first frequency band associated with the first SIM via the third antenna, while transmitting a signal (902) on the first frequency band associated with the first SIM via the first antenna, in a TDD transmission period for the second SIM that overlaps with a TDD transmission period for the first SIM.

[0262] In accordance with one embodiment of the present disclosure, a non-transitory computer-readable storage medium storing one or more programs, wherein the one or more programs, when executed by at least one processor (410) of an electronic device (400), cause the electronic device to: when a first frequency band for communication related to a first SIM (subscription identification module) (212) is a time division duplex (TDD) band and a second frequency band for communication related to a second SIM (214) is a TDD band that is identical to or at least partially overlapping with the first frequency band: during a TDD transmission period for the first SIM, transmit a first signal (1402) on the first frequency band related to the first SIM through a first antenna, receive a second signal (1404; 1406) on the second frequency band related to the second SIM through the second antenna, not the first antenna, and during a TDD reception period for the first SIM, transmit a third signal on the first frequency band related to the first SIM and a third signal on the second frequency band related to the second SIM and It may include instructions for receiving a fourth signal on the related second frequency band through the first antenna.

[0263] In one embodiment, the instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to transmit, through the first antenna, a signal on the first frequency band associated with the first SIM and a signal on the second frequency band associated with the second SIM during a first TDD transmission period for the first SIM.

[0264] In one embodiment, the instructions, when individually or collectively executed by the at least one processor, may cause the electronic device to transmit, during an SRS transmission period for the first SIM, a sounding reference signal (SRS) on the first frequency band associated with the first SIM through the first antenna and the second antenna, and to refrain from receiving a signal on the second frequency band associated with the second SIM while transmitting the SRS.

[0265] In one embodiment, the first signal may include a signal related to at least one of a physical uplink channel (PUSCH), a physical uplink control channel (PUCCH), or a physical random access channel (PRACH), excluding a sounding reference signal (SRS).

[0266] In one embodiment, the first antenna may be a primary antenna used for transmitting the signal, transmitting the SRS, and receiving a downlink signal.

[0267] The second antenna may be a secondary antenna that is not used for transmitting the first signal and is used for transmitting the SRS and receiving the downlink signal.

[0268] Electronic devices according to the various embodiments disclosed in this document 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 the embodiments of this document are not limited to the aforementioned devices.

[0269] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0270] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0271] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one command 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 command. The one or more commands 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.

[0272] According to one embodiment, the method according to various embodiments disclosed in this 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.

[0273] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an electronic device (400), A first antenna (910a) configured to transmit and receive RF (radio frequency) signals; A second antenna (930b; 960b) configured to receive RF signals; Memory (405) for storing instructions; and At least one processor (410) operatively connected to the first antenna, the second antenna, and the memory, wherein the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: When the first frequency band for communication related to the first SIM (subscription identification module) (212) is a TDD (time division duplex) band and the second frequency band for communication related to the second SIM (214) is a TDD band that is identical to or at least partially overlaps with the first frequency band: During the TDD transmission period for the first SIM, a first signal (1402) on the first frequency band related to the first SIM is transmitted through the first antenna, and a second signal (1404; 1406) on the second frequency band related to the second SIM is received through the second antenna, not the first antenna. An electronic device that receives, through the first antenna, a third signal on the first frequency band associated with the first SIM and a fourth signal on the second frequency band associated with the second SIM during a TDD reception period for the first SIM.

2. In the first paragraph, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: An electronic device that transmits, during a first TDD transmission period for the first SIM, a signal on the first frequency band associated with the first SIM and a signal on the second frequency band associated with the second SIM through the first antenna.

3. In the second paragraph, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: An electronic device that transmits an SRS (sounding reference signal) on the first frequency band associated with the first SIM through the first antenna and the second antenna during a SRS transmission period for the first SIM, and refrain from receiving a signal on the second frequency band associated with the second SIM while transmitting the SRS.

4. In any one of paragraphs 1 to 3, the first signal, An electronic device, excluding a sounding reference signal (SRS), including a signal related to at least one of a physical uplink channel (PUSCH), a physical uplink control channel (PUCCH), or a physical random access channel (PRACH).

5. In any one of paragraphs 1 to 4, The first antenna is a primary antenna used for transmitting the first signal, transmitting the SRS, and receiving a downlink signal. An electronic device in which the second antenna is not used for transmitting the first signal, but is a secondary antenna used for transmitting the SRS and receiving the downlink signal.

6. In any one of paragraphs 1 to 5, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: An electronic device that, during the TDD transmission period for the first SIM, deactivates a first reception path (920) in a first RF circuit (910) connected to the first antenna and activates a second reception path (936; 966) in a second RF circuit (930; 960) connected to the second antenna, thereby allowing the second signal to be received through the second antenna and the second reception path.

7. In the sixth paragraph, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: An electronic device that receives a first reception signal (1002) including a signal of the first frequency band and a signal of the second frequency band through the first antenna, while receiving a second reception signal (1004; 1008) including a signal of the first frequency band and a signal of the second frequency band through the second antenna.

8. In the 7th paragraph, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: In a second TDD reception period for the second SIM overlapping with the TDD reception period for the first SIM, by activating the first reception path in the first RF circuit connected to the first antenna and the second reception path in the second RF circuit connected to the second antenna, the second reception signal is received through the second antenna and the second reception path while the first reception signal is received through the first antenna and the first reception path, An electronic device, wherein, in a third TDD reception period for the second SIM that overlaps with a TDD transmission period for the first SIM, the first reception path is deactivated and the first transmission path within the first RF circuit and the second reception path (936; 966) within the second RF circuit (930; 960) are activated, thereby allowing the second signal to be received via the second antenna and the second reception path while the first signal is transmitted via the first antenna and the first transmission path.

9. In any one of paragraphs 1 to 8, at least one of the first frequency band or the second frequency band, An electronic device that operates in one of the n41 band, n48 band, n77 band, n78 band, or n79 band for 5G NR (5th generation new radio) communications.

10. In any one of paragraphs 1 to 9, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: While transmitting the SRS on the first frequency band related to the first SIM through the first antenna and the second antenna, the receiving path connected to the second antenna is disabled, An electronic device wherein the receiving path includes at least one low noise amplifier (LNA) (936; 966).

11. In any one of paragraphs 1 to 10, Further comprising a third antenna (940b) configured to transmit RF signals; The above instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: An electronic device that transmits a signal (902) on the first frequency band associated with the first SIM through the first antenna in a TDD transmission period for the second SIM that overlaps with the TDD transmission period for the first SIM, while transmitting a signal (904) on the first frequency band associated with the first SIM through the third antenna.

12. In a non-transitory computer-readable storage medium storing one or more programs, the one or more programs, when executed by at least one processor (410) of an electronic device (400), cause the electronic device to: When the first frequency band for communication related to the first SIM (subscription identification module) (212) is a TDD (time division duplex) band, and the second frequency band for communication related to the second SIM (214) is a TDD band that is identical to or at least partially overlaps with the first frequency band: During the TDD transmission period for the first SIM, a first signal (1402) on the first frequency band related to the first SIM is transmitted through the first antenna, and a second signal (1404; 1406) on the second frequency band related to the second SIM is received through the second antenna, not the first antenna. A storage medium comprising instructions for receiving, through the first antenna, a third signal on the first frequency band associated with the first SIM and a fourth signal on the second frequency band associated with the second SIM during a TDD reception period for the first SIM.

13. In the 12th paragraph, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: A storage medium that transmits, during a first TDD transmission period for the first SIM, a signal on the first frequency band associated with the first SIM and a signal on the second frequency band associated with the second SIM through the first antenna.

14. In the 13th paragraph, the instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: A storage medium that transmits an SRS (sounding reference signal) on the first frequency band associated with the first SIM during a SRS transmission period for the first SIM through the first antenna and the second antenna, and refrain from receiving a signal on the second frequency band associated with the second SIM while transmitting the SRS.

15. In any one of paragraphs 12 to 14, the first signal, Excluding a sounding reference signal (SRS), it includes a signal related to at least one of a physical uplink channel (PUSCH), a physical uplink control channel (PUCCH), or a physical random access channel (PRACH). The first antenna is a primary antenna used for transmitting the signal, transmitting the SRS, and receiving the downlink signal. A storage medium in which the second antenna is a secondary antenna that is not used for transmitting the first signal and is used for transmitting the SRS and receiving the downlink signal.

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