Electronic device supporting non-terrestrial network communication and operation method thereof

Abstract

According to an embodiment, a computer-readable storage medium stores at least one instruction, wherein the at least one instruction, when executed by at least one processor of an electronic device, may cause the electronic device to perform at least one operation. The at least one operation may include an operation of identifying a failure of first communication corresponding to a first protocol stack corresponding to a first SIM available to the at least one processor and a failure of second communication corresponding to a second protocol stack corresponding to a second SIM available to the at least one processor. The at least one operation may include an operation of, on the basis of the identification of the failures of the first communication and the second communication, performing at least one first scan of a terrestrial network by using the first protocol stack and performing at least one second scan of a non-terrestrial network simultaneously with at least a portion of the at least one first scan by using the second protocol stack. Various other embodiments are possible.

Description

Electronic device supporting non-terrestrial network communication and its operating method

[0001] One embodiment of the present disclosure relates to an electronic device supporting non-terrestrial network communication and a method of operating the same.

[0002] Recently, electronic devices supporting non-terrestrial network communications (e.g., satellite communications) are being actively introduced. For example, electronic devices can communicate with satellites operated by existing satellite communication companies by utilizing their frequencies and communication methods. For example, electronic devices can communicate with satellites using cellular frequencies based on the LTE (long-term evolution) standard (or 5G standard). Furthermore, electronic devices can also communicate with satellites based on the 5G NTN (non-terrestrial networks) standard.

[0003] For example, when an electronic device performs communication with a non-terrestrial network based on the LTE standard, some of the frequencies defined in the LTE standard may be allocated to non-terrestrial communication. The electronic device may perform satellite communication using the protocol stack used for terrestrial communication, and an additional protocol stack for non-terrestrial communication may not be required. The electronic device may perform communication without distinguishing between non-terrestrial communication and terrestrial communication. For example, the electronic device may perform a cell scan, camp on a cell that satisfies cell selection criteria, and perform an operation to access the network (e.g., camp on, a random access (RA) procedure, a connection establishment procedure, and / or attach (or registration)). The electronic device may perform an operation to camp on a cell that satisfies cell selection criteria and access the network without distinguishing between non-terrestrial communication and terrestrial communication. Accordingly, electronic devices can be prepared to perform non-terrestrial communications in substantially the same manner as terrestrial communications.

[0004] Meanwhile, in a wireless communication system, an electronic device (e.g., user equipment (UE)) can access a wireless communication network and use voice communication or data communication services at a fixed location or while moving. In order to provide communication services to an electronic device, an appropriate authentication process is required. A UICC (universal integrated circuit card) is inserted into the electronic device, and authentication is performed between the electronic device and the server of a mobile network operator (MNO) through the USIM (universal subscriber identity module) installed inside the UICC. The UICC may be called a SIM (subscriber identity module) card in the case of the GSM (global system for mobile communications) method, and a USIM (universal subscriber identity module) card in the case of the WCDMA (wideband code division multiple access) or LTE (long term evolution) method. The USIM card or SIM card may exist in the form of an independent UICC, may exist in a form embedded in the electronic device (e.g., embedded SIM, eSIM), or may exist in a form integrated in at least one of the chips included in the electronic device (e.g., integrated SIM, iSIM).

[0005] When a user of an electronic device subscribes to a wireless communication service provided by a telecommunications carrier, the telecommunications carrier may provide the user with a UICC (e.g., a SIM card or a USIM card), and the user may insert the UICC provided into his or her electronic device. In one embodiment, when the user of the electronic device subscribes to a wireless communication service provided by a telecommunications carrier, information to be stored in the UICC (e.g., an eSIM card or an iSIM card) included in the electronic device may be received from the telecommunications carrier. When the UICC is inserted into the electronic device or the information to be stored in the UICC is received from the telecommunications carrier, the USIM application installed in the UICC may perform an appropriate authentication process with the telecommunications carrier's server, which stores the same value, using the IMSI (international mobile subscriber identity) value and the encryption key value for authentication stored in the UICC. After the appropriate authentication process is performed, the wireless communication service may be used.

[0006] When information related to a SIM is provided from a telecommunications carrier's server to a UICC (e.g., eSIM or iSIM) installed in an electronic device, an appropriate authentication process can be performed with the telecommunications carrier's server that stores the same value using the IMSI (international mobile subscriber identity) value and the encryption key value for authentication included in the information related to the SIM or that can be generated using the information related to the SIM. After the appropriate authentication process is performed, wireless communication services can be used.

[0007] An electronic device may support two or more SIMs, and may be referred to as a dual SIM or multi-SIM electronic device. Equipping an electronic device with two or more SIM cards may mean that the electronic device comprises at least two independent UICCs. Alternatively, equipping an electronic device with two or more SIM cards may mean that the electronic device comprises at least one independent UICC and at least one eSIM card. Alternatively, equipping an electronic device with two or more SIM cards may mean that the electronic device comprises at least one independent UICC and at least one iSIM card. Alternatively, equipping an electronic device with two or more SIM cards may mean that the electronic device comprises an eSIM card or an iSIM card that supports at least two or more networks.

[0008] According to one embodiment, a computer-readable storage medium storing at least one instruction, wherein the at least one instruction, when executed by at least one processor of an electronic device, causes the electronic device to perform at least one operation. The at least one operation may include: determining a failure of a first communication corresponding to a first protocol stack corresponding to a first SIM available to the at least one processor; and determining a failure of a second communication corresponding to a second protocol stack corresponding to a second SIM available to the at least one processor. The at least one operation may include: performing at least one first scan for a terrestrial network using the first protocol stack; and performing at least one second scan for a non-terrestrial network using the second protocol stack, concurrently with at least a portion of the at least one first scan, based on the determination of the failure of the first communication and the second communication.

[0009] According to one embodiment, an electronic device may include a memory and at least one processor operatively connected to the memory. The memory may store at least one instruction, which, when executed by the at least one processor, causes the electronic device to perform at least one operation. The at least one operation may include an operation in which the at least one processor determines a failure of a first communication corresponding to a first protocol stack corresponding to a first SIM available to the at least one processor and a failure of a second communication corresponding to a second protocol stack corresponding to a second SIM available to the at least one processor. The at least one operation may include, based on the determination of a failure of the first communication and the second communication, performing at least one first scan for a terrestrial network using the first protocol stack and performing at least one second scan for a non-terrestrial network using the second protocol stack concurrently with at least a portion of the at least one first scan.

[0010] According to one embodiment, a method of operating an electronic device may include an operation in which the at least one processor determines a failure of a first communication corresponding to a first protocol stack corresponding to a first SIM available to the at least one processor and a failure of a second communication corresponding to a second protocol stack corresponding to a second SIM available to the at least one processor. The method of operating the electronic device may include an operation in which, based on the determination of the failure of the first communication and the second communication, the electronic device performs at least one first scan for a terrestrial network using the first protocol stack and at least one second scan for a non-terrestrial network using the second protocol stack, concurrently with at least a portion of the at least one first scan.

[0011] FIG. 1A is a block diagram of an electronic device within a network environment, according to one embodiment.

[0012] FIG. 1b is a diagram illustrating a network environment including an electronic device according to various embodiments.

[0013] FIG. 2 is a diagram illustrating an electronic device and a remote communication network environment according to one embodiment.

[0014] FIG. 3 is a drawing for explaining the connection of an electronic device according to one embodiment.

[0015] FIG. 4 is a diagram for explaining a non-terrestrial network system according to one embodiment.

[0016] FIG. 5A is a flowchart for explaining an operating method of an electronic device according to one embodiment.

[0017] FIG. 5b is a drawing for explaining an electronic device according to one embodiment.

[0018] FIG. 5c is a diagram illustrating scanning of a terrestrial network and a non-terrestrial network of an electronic device according to one embodiment.

[0019] FIG. 5d illustrates a flowchart for explaining a method of operating an electronic device according to one embodiment.

[0020] FIG. 6 is a flowchart illustrating an operation method of an electronic device according to one embodiment.

[0021] FIG. 7 illustrates a flowchart for explaining a method of operating an electronic device according to one embodiment.

[0022] FIG. 8 illustrates a flowchart for explaining a method of operating an electronic device according to one embodiment.

[0023] FIG. 9 is a diagram illustrating handover from a non-terrestrial network cell to a terrestrial network cell according to one embodiment.

[0024] FIG. 10 is a diagram for explaining handover from a non-terrestrial network cell to a terrestrial network cell according to one embodiment.

[0025] FIG. 11 is a diagram illustrating operations associated with protocol stacks of an electronic device according to one embodiment.

[0026] FIG. 1A is a block diagram of an electronic device (101) within a network environment (100), according to one embodiment. Referring to FIG. 1A, in the network environment (100), the electronic device (101) may communicate with the electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with the 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)).

[0027] 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 calculation, the processor (120) may store a command or data received from another component (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the command or data stored in the volatile memory (132), and store the resulting data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0028] 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.

[0029] 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).

[0030] 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).

[0031] 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).

[0032] 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.

[0033] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0034] 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).

[0035] 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.

[0036] 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.

[0037] 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).

[0038] 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.

[0039] 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.

[0040] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0041] 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.

[0042] 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).

[0043] 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.

[0044] 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, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the at least one selected antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0045] In one embodiment, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0046] 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)).

[0047] 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.

[0048] FIG. 1B is a diagram illustrating a network environment (100) including an electronic device according to various embodiments. Referring to FIG. 1B, the network (100) according to various embodiments of the present invention may include an electronic device (101), a first communication network (111a), a second communication network (112a), or a third communication network (not shown).

[0049] According to various embodiments, the electronic device (101) may operate in a dual SIM dual standby (DSDS) mode or a dual SIM dual active (DSDA) mode that supports multiple SIMs in one device. For example, the electronic device (101) may be equipped with two SIMs, a first SIM (111) and / or a second SIM (112). The first SIM (111) and the second SIM (112) may be removable rSIMs (removable SIMs). The rSIM may be a SIM that can be inserted into a slot provided in the electronic device (101), and there is no limitation on its form / specification. For example, the electronic device (101) may be equipped with two SIM cards to support the two SIMs. According to one embodiment, for convenience of description, the first SIM (111) and the second SIM (112) are illustrated as SIM cards, but are not limited thereto. The electronic device (101) may include an embedded SIM (eSIM) (191). For example, the electronic device (101) may be implemented to include only the eSIM (191), and the eSIM (191) may activate multiple profiles. In this case, a dual SIM-based operation based on multiple profiles may be performed. The electronic device (101) may also be implemented to include an eSIM (191) and a slot into which one or more SIMs may be installed. In this case, the electronic device (101) may perform a dual SIM-based operation based on information stored in an rSIM inserted (or connected) into the slot and a profile activated by the eSIM (191). The electronic device (101) may also perform a dual SIM-based operation based on two rSIMs, and there is no limitation on the combination thereof. For example, at least one of the first SIM (111) or the second SIM (112) may be replaced with an eSIM or an iSIM (integrated SIM).In this case, at least some of the information stored in the rSIM may be replaced with information of a profile activated by the eSIM. For convenience of explanation, the SIM card will be referred to as a SIM in the following. As illustrated in FIG. 1B, the electronic device (101) may be equipped with two SIM cards, a first SIM (111) and a second SIM (112). The electronic device (101) may include a first slot (not shown) and a second slot (not shown) as structures therein to accommodate the first SIM (111) and the second SIM (112), respectively.

[0050] For example, the first SIM (111) is a SIM subscribed to a telecommunications carrier of the first communication network (111a), and the electronic device (101) can receive wireless communication services by connecting to the first communication network (111a) using the first SIM (111). The second SIM (112) is a SIM subscribed to a telecommunications carrier of the second communication network (112a), and the electronic device (101) can receive wireless communication services by connecting to the second communication network (112a) using the second SIM (112). The first communication network (111a) and the second communication network (112a) may be provided by the same telecommunications carrier, or may be provided by different telecommunications carriers, respectively. If the first communication network (111a) and the second communication network (112a) are provided by the same telecommunications carrier, the first communication network (111a) and the second communication network (112a) may refer to the same network. Alternatively, different carriers may share a communication network. For example, a first carrier may utilize a first communication network (111a), and a second carrier may also be configured to utilize a second communication network (111a). In one embodiment, although not illustrated, the electronic device (101) may further include at least one SIM, and those skilled in the art will readily understand that there is no limitation on the number or type of SIM.

[0051] FIG. 2 is a diagram illustrating an electronic device and a remote communication network environment according to one embodiment.

[0052] The electronic device (101) can transmit and / or receive data via a terrestrial network and / or a non-terrestrial network. The electronic device (101) may have the same configuration as the electronic device (101) presented in FIG. 1 or may include the configuration of the electronic device (101) presented in FIG. 1.

[0053] A terrestrial network may refer to a network capable of providing data communication via a terrestrial wireless communication device (210). For example, the terrestrial wireless communication device (210) may include a base station located on the ground (e.g., fixed to the ground). The terrestrial wireless communication device (210) may support at least one communication method among various communication methods that the electronic device (101) can support. For example, the terrestrial wireless communication device (210) may include an eNodeB (e.g., an LTE-based base station) or a gNodeB (e.g., a 5G (or NR)-based base station), but there is no limitation on the type thereof.

[0054] A non-terrestrial network may refer to a network capable of providing data communication via at least one non-terrestrial wireless communication device (220). For example, the non-terrestrial wireless communication device (220) may include at least one of various communication devices such as a base station or repeater that are not located on the ground. For example, the non-terrestrial wireless communication device (220) may include, but is not limited to, a satellite and / or an unmanned aerial vehicle. For example, the satellite may include a low-earth orbit (LEO) satellite, a medium-earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, and / or a high elliptical orbit (HEO) satellite. For example, the satellite may include a mobile satellite and / or a geostationary satellite.

[0055] The non-terrestrial wireless communication device (220) can support at least one of various wireless communication methods. For example, the non-terrestrial wireless communication device (220) can support the NR NTN (non-terrestrial network) defined by the 3rd generation partnership project (3GPP). Alternatively, the non-terrestrial wireless communication device (220) can support at least one of communication methods based on various communication standards such as LTE, GSM (global system for mobile communications), or CDMA (code-division multiple access), but the type thereof is not limited.

[0056] The terrestrial network and the non-terrestrial network may be independent networks. Alternatively, the terrestrial network and the non-terrestrial network may be included in at least one network that is interconnected (e.g., a network provided by the same operator).

[0057] The electronic device (101) may perform wireless communication via a non-terrestrial network when communication with the terrestrial network is unavailable or not smooth. Alternatively, the electronic device (101) may perform wireless communication via a non-terrestrial network regardless of the status of communication with the terrestrial network, depending on the case.

[0058] According to one embodiment, the electronic device (101) may include a processor (120), a display module (160) (e.g., a display), a wireless communication module (192) (e.g., a communication circuit), and / or an antenna module (197). For example, the processor (120) may be operatively, functionally, and / or electrically connected to the display module (160), the wireless communication module (192), and / or the antenna module (197).

[0059] The processor (120) may control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) by executing, for example, instructions (e.g., a program (140) of FIG. 1) at least temporarily stored in a memory (e.g., a memory (130) of FIG. 1), and may perform various data processing or operations. According to one embodiment, the processor (120) may control overall operations related to terrestrial network communication and / or non-terrestrial network communication. For example, the processor (120) may include a communication processor (e.g., an auxiliary processor (123) of FIG. 1) related to terrestrial network communication and / or non-terrestrial network communication.

[0060] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101).

[0061] According to one embodiment, the display module (160) may display a user interface (UI) representing information related to a terrestrial network and / or a non-terrestrial network. For example, the UI representing information related to a terrestrial network and / or a non-terrestrial network may include at least one of a UI representing information related to a type of network (e.g., cellular communication (3G, 4G, or 5G), short-range communication (e.g., BT, or WIFI), or satellite communication), a type of network service provider (e.g., a satellite communication service provider (e.g., Iridium), an emergency service provider (ESP)), a network signal strength (e.g., signal strength bars, RSSI, or RSRP), an orientation of a communication device (satellite) included in the network (e.g., orientation, elevation angle, azimuth angle), presence information, and / or a network communication status (e.g., idle, transmit, or receive).

[0062] According to one embodiment, the display module (160) may display a UI representing services related to a terrestrial network and / or a non-terrestrial network.

[0063] According to one embodiment, the services related to the terrestrial network and / or the non-terrestrial network may include, for example, at least one of an emergency message transmission service, a messaging service, a voice call, a video call, a data communication service, a location-related service, and / or an indicator-related service.

[0064] According to one embodiment, the emergency message transmission service may include, but is not limited to, at least one of a service providing SOS service status information (e.g., indicating SOS service availability), a service providing government office information, a service providing emergency contact information, a service providing common phrases that minimize text input by the user, or a service using questionnaires to quickly convey emergency situations (e.g., a service providing options for the type of accident, the location of the injury, or medical information (e.g., age, gender, disease information, or medication information)).

[0065] In one embodiment, the messaging service may include, but is not limited to, at least one of a small message service (SMS), a multimedia messaging service (MMS), or a rich communication suite (RCS) message.

[0066] According to one embodiment, the data communication service may include services through various applications (e.g., web browsers) that provide data communication.

[0067] According to one embodiment, the location-related service may include, but is not limited to, at least one of longitude / latitude coordinates, location-related map information of the non-terrestrial communication device (220), navigation, or street view.

[0068] According to one embodiment, the UI examples are not limited to the examples mentioned, and may also be provided through other output devices (e.g., the audio output module (155) of FIG. 1).

[0069] According to one embodiment, the wireless communication module (192) may support various types of wireless communication bands supported by the electronic device (101). For example, the wireless communication bands supported by the electronic device (101) may include, but are not limited to, a short-range wireless communication band (e.g., BT or WiFi), a terrestrial network (e.g., cellular network) communication band, and / or a non-terrestrial network band.

[0070] According to one embodiment, the electronic device (101) may support a frequency band (e.g., n255 or n256) associated with non-terrestrial network wireless communication. The electronic device (101) may perform non-terrestrial network wireless communication using the frequency band associated with non-terrestrial network wireless communication, but is not limited thereto. For example, the electronic device (101) may perform non-terrestrial network wireless communication using at least a portion of the frequency band associated with terrestrial network wireless communication.

[0071] According to one embodiment, the antenna module (197) can transmit or receive signals or power to or from an external source (e.g., an external electronic device).

[0072] According to one embodiment, the electronic device (101) may perform wireless communication with a non-terrestrial network using at least one antenna among a plurality of antennas included in the antenna module (197). The at least one antenna supporting non-terrestrial wireless communication may include a dedicated antenna and / or a dual-purpose antenna. The dedicated antenna may include an antenna supporting a non-terrestrial network. The dual-purpose antenna may include an antenna supporting both a different type of network and a non-terrestrial network. For example, the electronic device (101) may communicate with at least one satellite (e.g., a GNSS satellite or a satellite for an emergency message service) using at least one non-terrestrial network dedicated antenna. For example, the dual-purpose antenna may include an antenna supporting a short-range communication network (e.g., a Bluetooth network, a WiFi network) and / or a terrestrial network (e.g., a long term evolution (LTE) network). The electronic device (101) may support a non-terrestrial network using a plurality of antennas among the antennas supporting a terrestrial network.

[0073] Hereinafter, in the present disclosure, a satellite is mainly mentioned as a non-terrestrial wireless communication device (220), and although it is mentioned that the satellite provides wireless communication using a specific radio access technology (RAT) (e.g., LTE) or a specific function (e.g., base station), this is only an example and the type is not limited.

[0074] FIG. 3 is a drawing for explaining the connection of an electronic device according to one embodiment.

[0075] According to one embodiment, the electronic device (101) may be located within the coverage (315) of the terrestrial wireless communication device (210) (hereinafter, referred to as terrestrial wireless communication coverage (315)) and / or within the coverage (325) of the non-terrestrial wireless communication device (220) (hereinafter, referred to as non-terrestrial wireless communication coverage (325)). The non-terrestrial wireless communication coverage (325) may be relatively larger (e.g., 50 times larger) than the terrestrial wireless communication coverage (315). For example, the non-terrestrial wireless communication coverage (325) may cover an area that the coverage (315) of the terrestrial wireless communication device (210) does not cover, and thus, the electronic device (101) may perform communication even in an area where terrestrial wireless communication is not supported.

[0076] According to one embodiment, the electronic device (101) can perform a cell scan within the terrestrial wireless communication coverage (315) and / or the non-terrestrial wireless communication coverage (325). As a result of performing the cell scan, the electronic device (101) can check the cell provided by the terrestrial wireless communication device (210) and / or the cell provided by the non-terrestrial wireless communication device (220). If there is a cell that satisfies the cell selection condition, the electronic device (101) can perform at least some of the operations for connecting to a network (e.g., a non-terrestrial network and / or a terrestrial network). Here, connecting to the network may include, but is not limited to, at least some of the preceding operations for registration to the network (e.g., camp on, or a connection procedure (e.g., a random access (RA) procedure)) and / or a registration operation to the network (e.g., attach, or registration). The electronic device (101) may perform at least some of the disconnection operations when disconnection from a network is required (e.g., moving to a different network). The disconnection operation from the network may include at least some of the following operations: detaching from the network, disconnecting the connection, and / or declaring a radio link failure (RLF), but is not limited to the listed operations.

[0077] According to one embodiment, the electronic device (101) may perform at least some of the following operations: cell scanning, disconnecting from a network, and / or connecting to a network, depending on movement (330, 335).

[0078] According to one embodiment, when the electronic device (101) is located within the terrestrial communication coverage (315) included in the non-terrestrial wireless communication coverage (325) or is located in the boundary area of ​​the terrestrial communication coverage (315), the electronic device (101) may perform access to the terrestrial network and / or the non-terrestrial network based on a policy (e.g., priority policy) of the electronic device (101).

[0079] FIG. 4 is a drawing for explaining a non-terrestrial network system (400) according to one embodiment.

[0080] Referring to FIG. 4, the non-terrestrial network system (400) may include a non-terrestrial wireless communication device (220), a radio unit (415), a packet core (430), and / or a PDN (440).

[0081] According to one embodiment, the non-terrestrial network system (400) may be implemented in a regenerative manner, for example. When implemented in a regenerative manner, at least one non-terrestrial wireless communication device (220) may include a base station (e.g., an eNode B). The non-terrestrial network system (400) may be implemented in a bent-pipe manner, for example. The bent-pipe manner may include a passive relay method that performs frequency conversion and power amplification on a received signal. When the non-terrestrial network system (400) is implemented in a bent-pipe manner, at least one non-terrestrial wireless communication device (220) may include a relay that converts (e.g., amplifies) and transmits a signal. The implementation manner of the non-terrestrial network system (400) and the role of the non-terrestrial wireless communication device (220) described in FIG. 4 are merely examples and are not limited thereto.

[0082] According to one embodiment, the non-terrestrial wireless communication device (220) may include at least one satellite. The non-terrestrial wireless communication device (220) may perform communication with the electronic device (101) using, for example, a terrestrial network (e.g., a cellular network) band and / or a non-terrestrial network band. The terrestrial network band may be, for example, an operating band supported by long term evolution (LTE) and / or new radio (NR), but is not limited thereto. The non-terrestrial network band may include, but is not limited to, a band defined by 3GPP (e.g., n255 and / or n256 bands).

[0083] According to one embodiment, at least one radio unit (415) may receive a signal from a non-terrestrial wireless communication device (220) and transmit it to a packet core (430). The radio unit (415) and the non-terrestrial wireless communication device (220) may communicate using, for example, a non-terrestrial network band. The non-terrestrial network band may be different from the terrestrial network band, but may be set to be the same in some cases.

[0084] According to one embodiment, at least one packet core (430) can transmit and receive data associated with the electronic device (101) using the radio unit (415). Accordingly, the packet core (430) can process the data associated with the electronic device (101) and transmit it to a packet data network (PDN) (440) (e.g., the Internet). The packet core (415) can include, for example, at least a portion of an evolved packet core (EPC) and / or a 5G core (5GC), but is not limited thereto. The packet core (430) can include a packet core associated with a non-terrestrial wireless communication device (220) operator and / or a packet core associated with a mobile network operator (MNO). The packet core (430) can be additionally connected to a public switched telephone network (PSTN) (not shown) to transmit and receive data associated with the electronic device (101).

[0085] FIG. 5A is a flowchart illustrating an operating method of an electronic device according to one embodiment. The embodiment of FIG. 5A will be described with reference to FIG. 5B. FIG. 5B is a diagram illustrating an electronic device according to one embodiment.

[0086] Referring to FIGS. 5A and 5B together, according to one embodiment, the electronic device (101) (e.g., the processor (120)) may, in operation 501, determine a failure in a first communication corresponding to a first protocol stack (511) and a failure in a second communication corresponding to a second protocol stack (512). For example, the electronic device (101) may perform the first communication corresponding to the first protocol stack (511) using information associated with the first SIM (111). For example, the electronic device (101) may perform the second communication corresponding to the second protocol stack (512) using information associated with the second SIM (112). For example, the electronic device (101) may perform communication corresponding to the second protocol stack using information associated with the first SIM (111), and / or may perform communication corresponding to the first protocol stack using information associated with the second SIM (112). Meanwhile, the information associated with the first SIM (111) and / or the second SIM (112) may be replaced with information stored in the eSIM (191) (for example, a profile activated based on the eSIM (191) may be, but is not limited to), but is not limited to. Thereafter, the electronic device (101) may determine a failure in performing the first communication and a failure in performing the second communication. For example, the electronic device (101) may determine a failure based on going out of coverage, entering a shadow area, and / or a weak electric field, but the cause of the failure is not limited. As described above, the electronic device (101) may fail both the first communication corresponding to the first protocol stack (511) using information associated with the first SIM (111) and the second communication corresponding to the second protocol stack (512) using information associated with the second SIM (112).For convenience of explanation, the failure of the first communication corresponding to the first protocol stack (511) using information related to the first SIM (111) may be referred to as a failure of the communication related to the first SIM (111), and the failure of the second communication corresponding to the second protocol stack (512) may be referred to as a failure of the communication related to the second SIM (112). Meanwhile, in FIG. 5b, although the protocol stacks (511, 512) are expressed as being included in the processor (120), this is exemplary and may mean that the processor (120) (e.g., a communication processor) can perform at least one instruction using the protocol stacks (511, 512), and there is no limitation.

[0087] According to one embodiment, the electronic device (101), in operation 503, based on the determination of failure of the first communication and the second communication, may perform at least one first scan for the terrestrial network using the first protocol stack (111), and may perform at least one second scan for the non-terrestrial network using the second protocol stack (512) concurrently with at least a portion of the at least one first scan. For example, the at least one first scan and / or the at least one second scan may include, but are not limited to, at least one or more stored information-based scans and / or at least one or more full scans.

[0088] In one example, the electronic device (101) may perform a scan using the first protocol stack (511) for at least one of a terrestrial network associated with the first SIM (111) or a terrestrial network associated with the second SIM (112) as at least part of the at least one first scan in operation 503. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for at least one of a non-terrestrial network associated with the first SIM (111) or a non-terrestrial network associated with the second SIM (112) as at least part of the at least one second scan in operation 503.

[0089] In one example, only the first SIM (111) may support non-terrestrial cells, and the second SIM (112) may not support non-terrestrial cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for at least one of the terrestrial network associated with the first SIM (111) or the terrestrial network associated with the second SIM (112) as at least a part of at least one first scan in operation 503. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for the non-terrestrial network associated with the first SIM (111) as at least a part of at least one second scan in operation 503.

[0090] In one example, only the first SIM (111) may support non-terrestrial cells, and the second SIM (112) may not support non-terrestrial cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for the terrestrial network associated with the first SIM (111) and the terrestrial network associated with the second SIM (112) as at least a part of at least one first scan in operation 503. For example, the electronic device (101) may perform a scan using the second protocol stack (502) for the non-terrestrial network associated with the first SIM (111) as at least a part of at least one second scan in operation 503.

[0091] In one example, only the first SIM (111) may support non-terrestrial cells, and the second SIM (112) may not support non-terrestrial cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for the terrestrial network associated with the first SIM (111) as at least a part of at least one first scan in operation 503. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for the non-terrestrial network associated with the first SIM (111) as at least a part of at least one second scan in operation 503.

[0092] In one example, only the second SIM (112) may support non-terrestrial cells, and the first SIM (111) may not support non-terrestrial cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for at least one of the terrestrial network associated with the first SIM (111) or the terrestrial network associated with the second SIM (112) as at least a part of at least one first scan in operation 503. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for the non-terrestrial network associated with the second SIM (112) as at least a part of at least one second scan in operation 503.

[0093] In one example, only the second SIM (112) may support non-terrestrial cells, and the first SIM (111) may not support non-terrestrial cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for the terrestrial network associated with the first SIM (111) and the terrestrial network associated with the second SIM (112) as at least a part of at least one first scan in operation 503. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for the non-terrestrial network associated with the second SIM (112) as at least a part of at least one second scan in operation 503.

[0094] In one example, only the second SIM (112) may support non-terrestrial cells, and the first SIM (111) may not support non-terrestrial cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for a terrestrial network associated with the first SIM (111) as at least a part of at least one first scan in operation 503. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for a non-terrestrial network associated with the second SIM (112) as at least a part of at least one second scan in operation 503.

[0095] In one example, both the first SIM (111) and the second SIM (112) may support non-terrestrial network cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for the terrestrial network associated with the first SIM (111) and the terrestrial network associated with the second SIM (112) as at least a part of at least one first scan in operation 503. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for the non-terrestrial network associated with the first SIM (111) and the non-terrestrial network associated with the second SIM (112) as at least a part of at least one second scan in operation 503.

[0096] For example, although not shown, a cell may be detected by at least a portion of at least one of the first scan or at least one of the second scans as described above. The electronic device (101) may detect a non-terrestrial cell, for example, using the second protocol stack (512). The electronic device (101) may perform at least one operation for connection based on a non-terrestrial cell based on the second protocol stack (512), but this is exemplary, and the electronic device (101) may also be implemented to perform at least one operation for connection based on a non-terrestrial cell based on the first protocol stack (511).

[0097] For example, although not shown, the electronic device (101) may deactivate the operation of scanning for the terrestrial network based on the performance of at least one operation for connection to a non-terrestrial network cell. For example, the electronic device (101) may periodically perform a scan for the terrestrial network using a protocol stack that is not used for connection (e.g., but not limited to, the first protocol stack (511)) at least partially concurrently with, or subsequent to, the performance of at least one operation for connection to a non-terrestrial network cell.

[0098] Here, at least one first scan for the terrestrial network may be performed using a first protocol stack (511) which is a defaulted data subscriber (DDS), and at least one second scan for the non-terrestrial network may be performed using a second protocol stack (512) which is a non-DDS, but this is exemplary and not limiting. For example, if both SIMs (111, 112) support the non-terrestrial network, the non-terrestrial network scan may be performed based on a non-terrestrial network preferred PLMN of a SIM corresponding to the DDS (e.g., which may be, but is not limited to, the first SIM (111)), and if no non-terrestrial network cell is found, the non-terrestrial network scan may be performed based on a non-terrestrial network preferred PLMN of a SIM corresponding to the non-DDS (e.g., which may be, but is not limited to, the second SIM (112)). If no non-terrestrial cell is identified based on a scan for non-terrestrial PLMNs, limited access to a non-terrestrial cell with limited access (e.g., limited camping) may be performed.

[0099] Meanwhile, the electronic device (101) can confirm a communication failure and further check whether an additional condition is satisfied, and if the additional condition is satisfied, it can perform operation 503. For example, the additional condition may be a cell verification failure as a result of performing a scan a specified number of times (e.g., two times, but there is no limit), but there is no limit. For example, the additional condition may be a failure verification of emergency call setup more than a specified number of times, but there is no limit. For example, the additional condition may be satisfied if the electronic device (101) is located in a shadow area, the RF status is poor, or the service is not supported, but there is no limit.

[0100] For example, the electronic device (101) can perform at least one first scan using a first RF resource and at least one second scan using a second RF resource. For example, the first RF resource can include, but is not limited to, at least a portion of an RF circuit (520) including at least one RFIC (521) and / or at least one RFFE (522) and a first receiving antenna (523). For example, the second RF resource can include, but is not limited to, at least a portion of an RF circuit (520) including at least one RFIC (521) and / or at least one RFFE (522) and a second receiving antenna (524). In another implementation, those skilled in the art will appreciate that the electronic device (101) can also perform a scan based on a single terrestrial and non-terrestrial compatible antenna.

[0101] For example, the electronic device (101) can verify PLMN-related information (e.g., may be named a PLMN list, but is not limited thereto) based on information stored in the first SIM (111) and / or the second SIM (112) that the first PLMN supports terrestrial and non-terrestrial networks, but is not limited thereto, and there is no limitation on the time of verification. Table 1 may be an example of PLMN-related information.

[0102] Priority PLMN support RAT1ANR2ASatellite NG-RAN3BNR, Satellite NG-RAN4CSatellite NG-RAN

[0103] For example, the electronic device (101) can determine that PLMNs "A" and "B" support a terrestrial network (e.g., NR) and a non-terrestrial network (e.g., Satellite NG-RAN). The electronic device (101) can perform at least one first scan for the terrestrial network (e.g., RAN) of PLMN "A", for example, based on a first protocol stack (511). The electronic device (101) can perform at least one second scan for the non-terrestrial network (e.g., Satellite NG-RAN) of PLMN "A", for example, based on a second protocol stack (512). For example, the electronic device (101) can perform at least one operation for communication using information associated with the first SIM (111) based on the second protocol stack (512). For example, information associated with the first SIM (111) may be accessible to both the first protocol stack (511) and the second protocol stack (512), and may be accessible, for example, through shared memory, but there is no limitation on the implementation method. For example, the electronic device (101) may check information stored in the SIM based on the index of each of the first SIM (111) and / or the second SIM (112).

[0104] At least a portion of at least one first scan for the terrestrial network can be performed concurrently with at least a portion of at least one second scan for the non-terrestrial network. For example, the period during which the at least one first scan for the terrestrial network is performed can be the same as the period during which the at least one second scan for the non-terrestrial network is performed. For example, the period during which the at least one first scan for the terrestrial network is performed can include the period during which the at least one second scan for the non-terrestrial network is performed. For example, a portion of the period during which the at least one first scan for the terrestrial network is performed can overlap with a portion of the period during which the at least one second scan for the non-terrestrial network is performed. For example, the period of the first scan for the terrestrial network and the period of the second scan for the non-terrestrial network can be included together within a given time unit. In this case, even if the duration of the first scan and the duration of the second scan do not physically overlap, it will be understood by those skilled in the art that the first scan and the second scan can be expressed as being performed simultaneously. As described above, a scan of a non-terrestrial network in an area where a terrestrial network is not supported can be performed relatively early. For example, in the comparative example, if a cell is not identified after a scan of the terrestrial network is performed, a scan of the non-terrestrial network can be performed thereafter. In the comparative example, since the scan of the non-terrestrial network is performed relatively late, there may be a possibility that the performance of an emergency service (e.g., an emergency call) may be delayed. According to the above-described embodiment, at least one first scan for the terrestrial network and at least one second scan for the non-terrestrial network can be performed at least partially simultaneously, and thus, since the scan of the non-terrestrial network is performed relatively early, the performance delay of the emergency service can be alleviated.In particular, emergency services are likely to be required in emergency situations, so early performance of emergency services may be required, and in some embodiments, early performance of emergency services may be possible.

[0105] According to one embodiment, the electronic device (101) may perform at least one operation for accessing an identified non-terrestrial cell based on at least some of the at least one second scan result. For example, if the electronic device (101) is located within the coverage of the non-terrestrial network but outside the coverage of the terrestrial network, the electronic device (101) may fail to identify a terrestrial cell based on at least one of the first scan results and may identify a non-terrestrial cell based on at least one of the second scan results. For example, the electronic device (101) may identify a non-terrestrial cell that is a suitable cell, but is not limited thereto, and those skilled in the art will understand that selection of an acceptable cell and / or any cell may be performed. The electronic device (101) may perform at least one operation for accessing an identified cell (for example, including but not limited to a camp on, an RA procedure, an RRC connection procedure, and / or a network attach (or registration) procedure). Accordingly, the electronic device (101) may perform a network attach based on a non-terrestrial cell and / or perform a limited camp-on. As described above, a scan of a non-terrestrial cell may be performed relatively early, and thus, a network attach based on a non-terrestrial cell may also be performed relatively early. The electronic device (101) may deactivate (or refrain from) an operation using the first protocol stack (511), which may also be referred to as deactivation of the first protocol stack (511). For example, the electronic device (101) may deactivate an operation using the first protocol stack (511) based on confirmation of at least a portion of a successful connection to a non-terrestrial cell, but there is no limitation on the trigger for such deactivation. Accordingly, a scan for a terrestrial cell may not be performed, but this is exemplary.For example, in another example, the electronic device (101) may perform at least some of the operations (e.g., terrestrial network scan) using the first protocol stack (511) even after the connection to the non-terrestrial network cell is successful. Meanwhile, deactivation of the operations using the first protocol stack (511) based on performing at least one operation for connection based on the non-terrestrial network cell is optional, and the operations using the first protocol stack (511) may be performed (e.g., performing at least one scan associated with the first SIM (111)).

[0106] FIG. 5c is a diagram illustrating scanning of a terrestrial network and a non-terrestrial network of an electronic device according to one embodiment.

[0107] According to one embodiment, the electronic device (101) can detect a failure of communication using both protocol stacks (511, 512), for example, when located in the coverage (325) of the non-terrestrial wireless communication device (220). For example, the electronic device (101) can detect a failure of a first communication corresponding to the first protocol stack (511) and a failure of a second communication corresponding to the second protocol stack (512). As described above, there is no limitation on the cause and / or detection method of the failure of the first communication and / or the failure of the second communication. Accordingly, the electronic device (101) cannot perform communication using both protocol stacks (511, 512), and therefore cannot perform emergency services even in an emergency situation.

[0108] According to one embodiment, the electronic device (101) can perform at least one first scan for the terrestrial network using the first protocol stack (511) and at least one second scan for the non-terrestrial network using the second protocol stack (512) concurrently with at least a portion of the at least one first scan. The electronic device (101) can perform at least one operation for accessing the identified non-terrestrial network cell based on at least a portion of the at least one second scan result. For example, as in FIG. 5C, the electronic device (101) can store PLMN-related information (54), which is information stored in, for example, the first SIM (111), the second SIM (112), and / or the eSIM (191). In the example of FIG. 5c, the PLMN-related information (54) may include information that the first PLMN (PLMN#1) supports the frequencies (or, absolute radio frequency channel number (ARFCN) and / or operating band) of f1 and f2, which are terrestrial networks (TNs), and supports the frequency of f3, which is a non-terrestrial network (NTN). The PLMN-related information (54) may include information that the second PLMN (PLMN#2) supports the frequency of f4, which is terrestrial networks (TNs), and does not support the non-terrestrial network (NTN). In this case, the electronic device (101) may perform at least some of the frequencies corresponding to the terrestrial network (TN) based on the first protocol stack (511), and may perform at least some of the frequencies corresponding to the non-terrestrial network (NTN) based on the second protocol stack (512), independently from the SIM and / or the PLMN. For example, the electronic device (101) may perform a scan for at least some of the frequencies f1, f2, and f4 corresponding to a terrestrial network (TN) based on the first protocol stack (511). For example, the electronic device (101) may perform a scan for the frequency f3 corresponding to a non-terrestrial network (NTN) based on the second protocol stack (512).Accordingly, the electronic device (101) can identify a non-terrestrial network cell by scanning using the second protocol stack (512). The electronic device (101) can access the identified non-terrestrial network cell and perform a service (for example, an emergency service, but there is no limitation on the type of service). According to a comparative example, if the electronic device (101) fails to identify a cell based on the scan result for the terrestrial network, there is a possibility that the non-terrestrial network scan may be delayed by performing a non-terrestrial network scan thereafter. The electronic device (101) can perform at least a part of the non-terrestrial network scan using the second protocol stack (512) simultaneously with at least a part of the terrestrial network scan, thereby enabling early identification of the non-terrestrial network and / or early access to the non-terrestrial network.

[0109] FIG. 5d illustrates a flowchart for explaining a method of operating an electronic device according to one embodiment.

[0110] According to one embodiment, the electronic device (101) may, in operation 561, identify a first communication failure corresponding to the first protocol stack (511) and a second communication failure corresponding to the second protocol stack (512). Based on the failure of both communications, the electronic device (101) may, in operation 563, perform at least one first scan for the terrestrial network using the first protocol stack and at least one second scan for the non-terrestrial network using the second protocol stack, concurrently with at least a portion of the at least one first scan. The identification of the communication failure and the substantially concurrent scan of the terrestrial network and the non-terrestrial network in operations 561 and 563 have been described above and therefore will not be repeated here. The electronic device (101) may, in operation 565, identify whether a cell is detected based on at least one first scan and at least a portion of the at least one second scan. If it is confirmed that a cell is detected (565-Yes), the electronic device (101) may perform an operation for connection based on the detected cell in operation 567. For example, in operation 565, a terrestrial cell may be detected, or a non-terrestrial cell may be detected. The electronic device (101) may perform an operation for connection based on the detected terrestrial cell or non-terrestrial cell. As described above, if the electronic device (101) detects a non-terrestrial cell using the second protocol stack (512), it may perform at least one operation for connection based on the non-terrestrial cell using the second protocol stack (512), but this is exemplary and not limiting, and the protocol stack for scanning and the protocol stack for connection may be implemented differently.

[0111] According to one embodiment, if it is determined that no cell is detected according to at least one first scan and at least one second scan (565-No), the electronic device (101) may, in operation 569, adjust at least some of the scans. The electronic device (101) may perform an adjusted scan, for example, as an alternative to operation 563. For example, the electronic device (101) may perform an adjusted scan that performs at least one third scan using the first protocol stack (511) to scan a terrestrial network associated with the second SIM (112), or at least one third scan using the first protocol stack (511) to scan a non-terrestrial network associated with the first SIM (111), but the type is not limited, and various examples of adjustments are described below.

[0112] In one example, only the first SIM (111) may support non-terrestrial cells, and the second SIM (112) may not support non-terrestrial cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for the terrestrial network associated with the first SIM (111) as at least a part of at least one first scan in operation 563. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for the non-terrestrial network associated with the first SIM (111) as at least a part of at least one second scan in operation 563. If cell detection fails based on the scans based on operation 563, the electronic device (101) may adjust the scan in operation 569. For example, the electronic device (101) may perform at least one third scan for scanning a terrestrial network associated with the second SIM (112) using the first protocol stack (511) when cell detection fails. The electronic device (101) may continue (or repeat) performing at least one second scan for a non-terrestrial network associated with the second SIM (112) using the second protocol stack (512). At least a portion of the at least one third scan may be performed concurrently with at least a portion of the at least one second scan. Alternatively, for example, the electronic device (101) may perform at least one third scan for scanning a non-terrestrial network associated with the first SIM (111) using the first protocol stack (511) when cell detection fails. The electronic device (101) may perform at least one fourth scan using the second protocol stack (512) to scan the terrestrial network associated with the second SIM (112). At least a portion of the at least one third scan may be performed concurrently with at least a portion of the at least one fourth scan.

[0113] In one example, only the second SIM (112) may support non-terrestrial cells, and the first SIM (111) may not support non-terrestrial cells. For example, the electronic device (101) may perform a scan using the first protocol stack (511) for the terrestrial network associated with the first SIM (111) as at least a part of at least one first scan in operation 563. For example, the electronic device (101) may perform a scan using the second protocol stack (512) for the non-terrestrial network associated with the second SIM (112) as at least a part of at least one second scan in operation 563. For example, the electronic device (101) may perform at least one third scan using the first protocol stack (511) for scanning the terrestrial network associated with the second SIM (112) in the event of a cell detection failure. The electronic device (101) may maintain (or repeat) performing at least one second scan for a non-terrestrial network associated with the second SIM (112) using the second protocol stack (512). At least a portion of the at least one third scan may be performed concurrently with at least a portion of the at least one second scan. Alternatively, for example, the electronic device (101) may perform at least one third scan using the first protocol stack (511) to scan the non-terrestrial network associated with the second SIM (112) in the event of a cell detection failure. The electronic device (101) may perform at least one fourth scan using the second protocol stack (512) to scan the terrestrial network associated with the second SIM (112). At least a portion of the at least one third scan may be performed concurrently with at least a portion of the at least one fourth scan.

[0114] Meanwhile, the adjustment of the scan is merely exemplary, and the electronic device (101) may also continue (or repeat) performing at least one first scan and at least one second scan based on a cell detection failure according to at least one first scan and at least one second scan.

[0115] FIG. 6 is a flowchart illustrating an operation method of an electronic device according to one embodiment.

[0116] According to one embodiment, the electronic device (101) may perform at least one first scan for the terrestrial network using the first protocol stack (511) in operation 601, and may perform at least one second scan for the non-terrestrial network using the second protocol stack (512) simultaneously with at least a portion of the at least one first scan. The electronic device (101) may determine whether a terrestrial network cell is identified based on the result of the at least one first scan in operation 603. If a terrestrial network cell is identified (603-Yes), the electronic device (101) may perform at least one operation for accessing the terrestrial network cell in operation 605. Thereafter, the electronic device (101) may perform communication based on the terrestrial network cell. In this case, the electronic device (101) may stop the non-terrestrial network scan based on the second protocol stack (512). The electronic device (101) may perform a scan associated with a PLMN (or cell) corresponding to the second SIM (112) based on the second protocol stack (512). For example, the electronic device (101) may stop a mode (e.g., an emergency mode) of a terrestrial network scan based on the first protocol stack (511) and a non-terrestrial network scan based on the second protocol stack (512), perform terrestrial network communication based on the first protocol stack (511), and perform a mode (e.g., a normal mode) of performing a scan associated with the second SIM (112).

[0117] If a terrestrial cell is not identified (603-No), the electronic device (101) can, in operation 607, check whether a non-terrestrial cell is identified. Meanwhile, operations 603 and 607 mean that the priority of performing at least one operation for connection to a terrestrial cell is higher than the priority for a non-terrestrial cell, and as described above in operation 601, at least one first scan for the terrestrial network and at least one second scan for the non-terrestrial network can be performed at least partially simultaneously. If a non-terrestrial cell is identified (607-Yes), the electronic device (101) can, in operation 609, perform at least one operation for connection to a non-terrestrial cell. If the non-terrestrial cell is a suitable cell, the electronic device (101) can perform an unrestricted service (or communication) based on the non-terrestrial cell. If the electronic device (101) performs a limited camp-on, the electronic device (101) may perform a limited service (or communication) (e.g., performing an emergency call, or receiving an emergency message (e.g., an earthquake and tsunami warning system (ETWS) message, or a commercial mobile alert system (CMAS) message), but the type thereof is not limited). As described above, the electronic device (101) may be able to preferentially connect to a terrestrial cell even when both a terrestrial cell and a non-terrestrial cell are identified through a simultaneous scan. However, this is exemplary, and those skilled in the art will understand that the electronic device (101) may be implemented to preferentially connect to a non-terrestrial cell. Accordingly, the electronic device (101) may be able to preferentially connect to a terrestrial cell (or, in another implementation, a non-terrestrial cell).If a non-terrestrial network cell is not identified (607-No), the electronic device (101) may perform at least one first scan for the terrestrial network using the first protocol stack (511) in operation 601, and may perform at least one second scan for the non-terrestrial network using the second protocol stack (512) concurrently with at least a portion of the at least one first scan.

[0118] In one embodiment, the electronic device (101) may determine which cell to access first among a terrestrial network cell or a non-terrestrial network cell, based on whether an additional condition is satisfied. For example, the electronic device (101) may access first to a terrestrial network cell if the reception strength for the terrestrial network cell is higher than a threshold value, and may access first to a non-terrestrial network cell if the reception strength for the terrestrial network cell is lower than the threshold value. Accordingly, the electronic device (101) may provide stable service by accessing a non-terrestrial network cell when located in a weak electric field of the terrestrial network. Meanwhile, those skilled in the art will understand that the priority determination based on the reception strength is merely exemplary, and there are no limitations on the conditions for priority determination.

[0119] FIG. 7 illustrates a flowchart for explaining a method of operating an electronic device according to one embodiment.

[0120] According to one embodiment, the electronic device (101) may perform, in operation 701, at least one first scan associated with a terrestrial network using a first protocol stack (511) and at least one second scan associated with a non-terrestrial network using a second protocol stack (512). In operation 703, the electronic device (101) may identify a non-terrestrial network cell based on at least a portion of the at least one second scan. In operation 705, the electronic device (101) may determine whether the identified non-terrestrial network cell is a cell that prefers (or supports) the non-terrestrial network. For example, the electronic device (101) may determine whether a PLMN identified based on a system information block (SIB) from the non-terrestrial network cell matches a PLMN that prefers the non-terrestrial network (NTN-preferred PLMN). If the identified non-terrestrial cell is a cell that prefers (or supports) the non-terrestrial network (705-Yes), the electronic device (101) can perform at least one operation for access to the non-terrestrial network cell in operation 707. The electronic device (101) can perform, for example, an attach procedure for the non-terrestrial network, and if successful, can perform an available service. If the identified non-terrestrial network cell is not a cell that prefers (or supports) the non-terrestrial network (705-No), the electronic device (101) can perform at least one operation for limited access to the non-terrestrial network cell (for example, it can be limited camp on, but there is no limitation on the access method) in operation 709. After performing the limited access, the electronic device (101) can perform a limited service based on the non-terrestrial network cell.

[0121] FIG. 8 illustrates a flowchart for explaining a method of operating an electronic device according to one embodiment.

[0122] According to one embodiment, the electronic device (101) may perform, in operation 801, at least one first scan associated with a terrestrial network using a first protocol stack (511) and at least one second scan associated with a non-terrestrial network using a second protocol stack (512). In operation 803, the electronic device (101) may identify a non-terrestrial network cell based on at least a portion of the at least one second scan. In operation 805, the electronic device (101) may perform at least one operation for accessing a non-terrestrial network cell. In operation 807, the electronic device (101) may deactivate an operation using the first protocol stack (511). In operation 809, the electronic device (101) may determine whether a scan resumption event for the terrestrial network is identified. For example, the electronic device (101) may start a timer based on the inactivity of the operation using the first protocol stack (511) in operation 807, and may identify the expiration of the timer as a scan resume event for the terrestrial network. For example, the electronic device (101) may identify that the RRC state for the non-terrestrial network is idle as a scan resume event for the terrestrial network. For example, the electronic device (101) may identify that a service based on the non-terrestrial network is not being performed as a scan resume event for the terrestrial network, but the above-described items are merely examples and there are no limitations to the scan resume event for the terrestrial network. When the scan resume event is identified (809-Yes), the electronic device (101) may activate the operation using the first protocol stack (511) in operation 811. The electronic device (101) may perform a scan for bands associated with the first SIM (111) or a scan for a terrestrial network as at least part of an operation using the first protocol stack (511), but this is exemplary and there is no limitation on the type of operation using the first protocol stack (511).

[0123] FIG. 9 is a diagram illustrating handover from a non-terrestrial network cell to a terrestrial network cell according to one embodiment.

[0124] According to one embodiment, the electronic device (101) may access a network based on the non-terrestrial wireless communication device (220), for example, within the coverage (325) of the non-terrestrial wireless communication device (220). In this case, the non-terrestrial wireless communication device (220) may be a source node. The electronic device (101) may receive an RRC reconfiguration message (901) from the non-terrestrial wireless communication device (220). The RRC reconfiguration message (901) may include a measurement configuration. For example, the electronic device (101) may be requested to perform the following types of measurements:

[0125] - Intra-frequency measurements: Measurements at the downlink carrier frequency(s) of the serving cell(s).

[0126] -Inter-frequency measurements: Measurements at frequencies different from any of the downlink carrier frequencies of the serving cell(s).

[0127] - Measurements at frequencies of inter-RAT (e.g. NR, UTRA, GERAN, CDMA 2000 HRPD or CDMA 2000 1xRTT)

[0128] The measurement configuration may include information about a measurement object. The measurement object may include, for example, subcarrier spacing and frequency / time position of a reference signal to be measured. The electronic device (101) may identify a frequency for measurement based on the measurement object in the measurement configuration. The measurement object may also include information indicating a frequency to be measured (e.g., ARFCN-ValueEUTRA and / or ARFCN-ValueNR), a measurement object identity, or a cell blacklist and / or cell whitelist. Meanwhile, 3GPP TS 38.821 describes handover between a terrestrial network and a non-terrestrial network, and a network may support handover between a terrestrial network and a non-terrestrial network. Accordingly, for example, the measurement object of the RRC reconfiguration message (901) may include information (e.g., ARFCN) of a terrestrial wireless communication device (210) that is a terrestrial network. The electronic device (101) can perform measurements for terrestrial network communications. For example, the electronic device (101) can perform measurements of at least one of RSRP (reference signal received power), RSRQ (reference signal received quality), RSSI (reference signal strength indicator), or SINR (signal to interference-plus-noise ratio) corresponding to at least one of inter-frequency, intra-frequency, or inter-RAT, depending on the measurement settings, but there is no limitation.

[0129] As shown in FIG. 9, the electronic device (101) can move within the coverage area (315) of the terrestrial wireless communication device (210). Even when located within the coverage area (315) of the terrestrial wireless communication device (210), the electronic device (101) can perform measurements on terrestrial network communications and determine whether the measurement results satisfy reporting conditions. For example, the measurement configuration of the RRC reconfiguration message (901) may include a reporting configuration. For example, the reporting configuration may include at least one of a reporting criterion, a reporting format, or an RS type, but is not limited thereto. The reporting condition is a condition that triggers the electronic device (101) to transmit a measurement report, and may be a periodic or single event description. The report format may be, for example, in the case of LTE communication, information about the quantity and related information (e.g., the number of cells to be reported) to be included by the user device in the measurement report. The report format may be, for example, in the case of 5G communication, the quantity per cell and per beam and other related information (e.g., the maximum number of beams and cells per cell to be reported) to be included in the measurement report. The RS type may indicate, for example, the RS of the beam and measurement result to be used by the electronic device (101).

[0130] According to one embodiment, the electronic device (101) can confirm that the measurement result satisfies the reporting condition. The electronic device (101) can confirm the measurement result from the physical layer, for example, and determine whether the reporting condition is satisfied based on the measurement result. The electronic device (101) can perform filtering (e.g., layer 3 filtering) on ​​the performance result, and determine whether the reporting condition is satisfied based on the filtered result. In various embodiments of the present disclosure, the “measurement result” can refer to at least one of, for example, a value obtained from the physical layer, or a filtered value of a value obtained from the physical layer. The reporting condition can be, for example, as follows, but is not limited thereto.

[0131] - Event A1: Serving becomes better than threshold

[0132] - Event A2: Serving becomes worse than threshold

[0133] - Event A3: Neighbor becomes offset better than PCell / PSCell (or, SpCell in NR)

[0134] - Event A4: Neighbor becomes worse than threshold

[0135] - Event A5: PCell / PSCell (or, SpCell of NR) becomes worse than threshold1 and neighbor (or, neighbor / SCell of NR) becomes better than threshold2

[0136] - Event A6: Neighbor becomes offset better than SCell (or, SCell in NR)

[0137] - Event B1: Inter RAT neighbor becomes better than threshold

[0138] - Event B2: PCell becomes worse than threshold1 and inter RAT neighbor becomes better than threshold2

[0139] The reporting conditions described above are merely exemplary and are not limited in type.

[0140] According to various embodiments, the electronic device (101) may not constantly perform measurements that should be performed according to the measurement settings, but may perform them according to a measurement cycle. The electronic device (101) may transmit a measurement report message (903) based on satisfaction of a reporting condition. For example, the electronic device (101) may transmit a measurement report message (903) if a satisfied reporting condition among the above-described reporting conditions is maintained during the time-to-trigger. The non-terrestrial wireless communication device (220) may determine whether to hand over the electronic device (101) to the terrestrial wireless communication device (210) (e.g., the target cell) based on the received measurement report message (903). If it is determined that the handover will be performed, the non-terrestrial wireless communication device (220) may transmit a handover command to the electronic device (101). The electronic device (101) can perform an operation (e.g., an RA procedure, but without limitation) for connection to a ground wireless communication device (210) based on a handover command. Accordingly, the electronic device (101) can be handed over to the ground wireless communication device (210).

[0141] In one embodiment, the network may support conditional handover. The electronic device (101) may, for example, receive a conditional handover command from the network, and, based on the satisfaction of an execution condition included in the conditional handover command, perform an operation (e.g., an RA procedure, but without limitation) for connecting to a ground wireless communication device (210). Those skilled in the art will appreciate that the handover-related configurations described in this disclosure may be replaced with conditional handover.

[0142] FIG. 10 is a diagram for explaining handover from a non-terrestrial network cell to a terrestrial network cell according to one embodiment.

[0143] According to one embodiment, the electronic device (101), in operation 1001, may receive a handover command to a terrestrial cell while connected to a network based on a non-terrestrial cell. Since the configuration for receiving a handover command to a terrestrial cell has been described with reference to FIG. 9, the description thereof will not be repeated herein. The electronic device (101), in operation 1003, may perform at least one operation for handover to a terrestrial cell based on the handover command. For example, the electronic device (101) may perform an RA procedure to a terrestrial cell as at least one operation for handover, but there is no limitation thereto. The electronic device (101) may maintain a state of being connected to a network based on a non-terrestrial cell even while performing at least one operation for handover to a terrestrial cell. Accordingly, call failure and / or data stall that may occur when a handover to a terrestrial cell fails may be prevented. For example, if a handover failure occurs while an emergency call is in progress, a call delay in the emergency situation may occur, and stable emergency call performance in the emergency situation may be possible.

[0144] The electronic device (101) can determine whether the handover to the terrestrial network cell was successful in operation 1005. For example, the electronic device (101) can determine whether the handover was successful based on a failure of the RA procedure and / or the expiration of the T304 timer, but there is no limitation on the method for determining whether the handover was successful. For example, the electronic device (101) can determine whether the handover was successful based on the completion of the RA procedure (e.g., reception of an RRC configuration complete message).

[0145] If the handover to the terrestrial cell is not successful (1005-No), the electronic device (101) may perform an operation corresponding to the handover failure in operation 1007 while maintaining a connection based on a non-terrestrial cell. For example, the electronic device (101) may re-perform cell selection and / or RA procedures as an operation corresponding to the handover failure, but this is exemplary and not limiting. If the handover to the terrestrial cell is successful (1005-Yes), the electronic device (101) may perform an operation based on the second protocol for multiple SIMs in operation 1009. For example, the electronic device (101) may perform a scan associated with a PLMN (or cell) corresponding to the second SIM (112) based on the second protocol stack (512). For example, the electronic device (101) may perform a mode (e.g., an emergency mode) of terrestrial network scanning based on the first protocol stack (511) and non-terrestrial network scanning based on the second protocol stack (512), and perform a mode (e.g., a normal mode) of performing terrestrial network communication based on the first protocol stack (511) and performing a scan of a PLMN (or cell) corresponding to the second protocol stack (512) based on the second protocol stack (512). Alternatively, the electronic device (101) may be implemented to deactivate the second protocol stack (512).

[0146] FIG. 11 is a diagram illustrating operations associated with protocol stacks of an electronic device according to one embodiment.

[0147] According to one embodiment, the electronic device (101) may perform a first communication based on a first protocol stack (511) with a first PLMN (PLMN#1) at a first time point (t1), and may perform a first communication based on a second protocol stack (512) with a second PLMN (PLMN#2). Here, the first PLMN (PLMN#1) may be a PLMN associated with a first SIM (111) corresponding to the first protocol stack (511), and the second PLMN (PLMN#2) may be a PLMN associated with a second SIM (112) corresponding to the second protocol stack (512). The electronic device (101) may perform a general multi-SIM-based operation at the first time point (t1) based on both protocol stacks (511, 512). For example, if the first SIM (111) corresponds to DDS and the second SIM (112) corresponds to non-DDS, the electronic device (101) can perform basic data transmission and reception based on the first protocol stack (511). In this case, the electronic device (101) can wake up during a DRX (discontinuous reception) paging cycle while maintaining the RRC state in an idle state based on the second protocol stack (512) to monitor paging (for example, MT paging, but there is no limitation). If paging is confirmed, the electronic device (101) can also perform data transmission and reception based on the second protocol stack (512). Meanwhile, the first protocol stack (511) in FIG. 11 corresponds to DDS and the second protocol stack (512) corresponds to non-DDS is merely exemplary and is not limited thereto.

[0148] The electronic device (101) can, at a second time point (t2), determine a failure of a first communication corresponding to the first protocol stack (511) and a failure of a second communication corresponding to the second protocol stack (512). There is no limitation on the cause and / or determination method of the communication failure. As described above, the electronic device (101) can, in response to the failure of communications corresponding to both protocol stacks (511, 512), perform at least one terrestrial network scan based on the first protocol stack (511) and at least one non-terrestrial network scan based on the second protocol stack (512) at a third time point (t3). As described above, at least one terrestrial network scan and at least one non-terrestrial network scan may be performed at least partially simultaneously, and thus the non-terrestrial network scan may be performed relatively early. For example, the electronic device (101) assumes that the terrestrial network cell has failed to be identified based on the terrestrial network scan and that a non-terrestrial network cell has been identified based on the non-terrestrial network scan. The electronic device (101) assumes that the non-terrestrial network cell of the first PLMN (PLMN#1) has been identified based on, for example, the second protocol stack (512). In a comparative example, in contrast to the case where a terrestrial network scan of the first PLMN (PLMN#1) is performed based on the first protocol stack (511) and a non-terrestrial network scan of the first PLMN (PLMN#1) is performed after the terrestrial network cell is not confirmed, the electronic device (101) according to one embodiment can perform a non-terrestrial network scan of the first PLMN (PLMN#1) based on the second protocol stack (512), so that the non-terrestrial network cell of the first PLMN (PLMN#1) can be confirmed relatively early. For example, the electronic device (101) can perform communication based on the first SIM (111) information by using the second protocol stack (512), and thus the following operations can be performed.

[0149] The electronic device (101) may perform at least one operation for connection based on a non-terrestrial cell based on the second protocol stack (512) at a fourth time point (t4). The electronic device (101) may perform a network attach based on a non-terrestrial cell and / or perform a restricted connection. The electronic device (101) may deactivate an operation associated with the first protocol stack (511) at the fourth time point (t4) based on a failure to confirm a terrestrial cell according to the terrestrial scan result and / or a connection (e.g., a general connection or a restricted connection) to a non-terrestrial cell. Accordingly, the terrestrial scan based on the first protocol stack (511) may be stopped, but it will be understood by those skilled in the art that this is exemplary and that the terrestrial scan based on the first protocol stack (511) may be implemented to continue. If the operation associated with the first protocol stack (511) is disabled, the electronic device (101) may activate the operation associated with the first protocol stack (511) (e.g., perform a terrestrial network scan) based on confirmation of a terrestrial network scan resumption event. Alternatively, the electronic device (101) may periodically perform a terrestrial network scan based on the first protocol stack (511), without limitation.

[0150] The electronic device (101) may, at a fifth time point (t5), receive a handover command from a non-terrestrial cell to a terrestrial cell based on the second protocol stack (512). For example, the electronic device (101) may receive an RRC reconfiguration message from the non-terrestrial cell based on the second protocol stack (512). The electronic device (101) may perform measurements on surrounding terrestrial cells based on information about the terrestrial cell included in a measurement object included in the RRC reconfiguration message (e.g., frequency, but without limitation). Measurements for terrestrial network cells can also be performed based on the second protocol stack (512), and the electronic device (101) can keep the operations based on the first protocol stack (511) disabled, but this is exemplary and the operations based on the first protocol stack (511) can be implemented to be activated based on the fact that the measurement object includes information about the terrestrial network cell. The electronic device (101) can perform a measurement report based on the second protocol stack (512) based on the measurement result satisfying the reporting condition. The electronic device (101) can receive a handover command in response to the measurement report.

[0151] The electronic device (101) may perform at least one operation (e.g., an RA procedure, but without limitation) for handover to a terrestrial network based on the first protocol stack (511) at a sixth time point (t6). The electronic device (101) may maintain a non-terrestrial network connection based on the second protocol stack (512) while the at least one operation for handover based on the first protocol stack (511) is performed. Accordingly, call failure and / or data stall that may occur in the event of a handover failure may be prevented. If the handover is successful, the electronic device (101) may switch protocol stacks and perform communication based on the terrestrial network cell of the first PLMN (PLMN #1) based on the first protocol stack (511). Based on the switching of the protocol stack, the electronic device (101) can perform communication associated with the second PLMN (PLMN #2) associated with the second SIM (112) as an operation associated with the second SIM (112) based on the second protocol stack (512). Meanwhile, those skilled in the art will understand that the switching of the protocol stack is merely exemplary and that the performance may be omitted. For example, the electronic device (101) can perform a scan for the second PLMN (PLMN #2) based on the second protocol stack (512), and when a cell is confirmed as a result of the scan, the electronic device (101) can perform at least one operation for connection. For example, the electronic device (101) may perform a mode (e.g., an emergency mode) of terrestrial network scanning based on the first protocol stack (511) and non-terrestrial network scanning based on the second protocol stack (512), and may perform a mode (e.g., a normal mode) of performing terrestrial network communication based on the first protocol stack (511) and performing a scan of a PLMN (or cell) corresponding to the second protocol stack (512) based on the second protocol stack (512).

[0152] According to one embodiment, a computer-readable storage medium storing at least one instruction may be provided. The at least one instruction, when executed by at least one processor (120) of an electronic device (101), may cause the electronic device (101) to perform at least one operation.

[0153] According to one embodiment, the at least one operation may include an operation of identifying a failure of a first communication corresponding to a first protocol stack (511) corresponding to a first SIM (111) available to the at least one processor (120) and a failure of a second communication corresponding to a second protocol stack (512) corresponding to a second SIM (112) available to the at least one processor (120).

[0154] In one embodiment, the at least one operation may include performing at least one first scan for the terrestrial network using the first protocol stack, and performing at least one second scan for the non-terrestrial network using the second protocol stack, concurrently with at least a portion of the at least one first scan, based on the determination of a failure for the first communication and the second communication.

[0155] In one embodiment, the at least one first scan may be at least one scan using the first protocol stack for at least one of a terrestrial network associated with the first SIM or a terrestrial network associated with the second SIM.

[0156] In one embodiment, the at least one second scan may be at least one using the second protocol stack for a non-terrestrial network associated with the first SIM.

[0157] In one embodiment, the at least one first scan may be at least one scan using the first protocol stack for a terrestrial network associated with the first SIM and a terrestrial network associated with the second SIM.

[0158] In one embodiment, the at least one second scan may be at least one scan using the second protocol stack for a non-terrestrial network associated with the first SIM.

[0159] In one embodiment, the at least one first scan may be at least one scan using the first protocol stack for a terrestrial network associated with the first SIM.

[0160] In one embodiment, the at least one second scan may be at least one scan using the second protocol stack for a non-terrestrial network associated with the first SIM.

[0161] In one embodiment, the at least one operation may include performing at least one third scan for a terrestrial network associated with the second SIM using the first protocol stack if cell detection fails according to the at least one first scan and the at least one second scan, and repeatedly performing the at least one second scan using the second protocol stack concurrently with at least a portion of the third scan.

[0162] In one embodiment, the at least one operation may include performing at least one third scan for a non-terrestrial network associated with the first SIM using the first protocol stack and performing at least one fourth scan for a terrestrial network associated with the second SIM using the second protocol stack if cell detection fails according to the at least one first scan and the at least one second scan.

[0163] In one embodiment, the at least one first scan may be at least one scan using the first protocol stack for at least one of a terrestrial network associated with the first SIM or a terrestrial network associated with the second SIM.

[0164] In one embodiment, the at least one second scan may be at least one scan using the second protocol stack for at least one of a non-terrestrial network associated with the first SIM or a non-terrestrial network associated with the second SIM.

[0165] In one embodiment, the at least one first scan may be at least one scan using the first protocol stack for at least one of a terrestrial network associated with the first SIM or a terrestrial network associated with the second SIM.

[0166] In one embodiment, the at least one second scan may be at least one scan using the second protocol stack for a non-terrestrial network associated with the second SIM.

[0167] In one embodiment, the at least one first scan may be at least one scan using the first protocol stack for a terrestrial network associated with the first SIM and a terrestrial network associated with the second SIM.

[0168] In one embodiment, the at least one second scan may be at least one scan using the second protocol stack for a non-terrestrial network associated with the second SIM.

[0169] In one embodiment, the at least one first scan may be at least one scan using the first protocol stack for a terrestrial network associated with the first SIM.

[0170] In one embodiment, the at least one second scan may be at least one scan using the second protocol stack for a non-terrestrial network associated with the second SIM.

[0171] In one embodiment, the at least one operation may include performing at least one third scan for a terrestrial network associated with the second SIM using the first protocol stack if cell detection fails according to the at least one first scan and the at least one second scan, and repeatedly performing the at least one second scan using the second protocol stack concurrently with at least a portion of the at least one third scan.

[0172] In one embodiment, the at least one first scan may be at least one scan using the first protocol stack for a terrestrial network associated with the first SIM and a terrestrial network associated with the second SIM.

[0173] In one embodiment, the at least one second scan may be at least one scan using the second protocol stack for a non-terrestrial network associated with the first SIM and a non-terrestrial network associated with the second SIM.

[0174] In one embodiment, the at least one operation may include performing, using the second protocol stack, at least one operation for connection to a non-terrestrial cell identified based on at least some of the results of the at least one first scan and the at least one second scan.

[0175] In one embodiment, the at least one operation may include an operation of deactivating a scan operation for the terrestrial network based on performance of at least one operation for connection to the non-terrestrial network cell.

[0176] In one embodiment, the at least one operation may include performing at least one operation for accessing the non-terrestrial cell using the second protocol stack and performing a scan for the terrestrial network using the first protocol stack that is not used for the access, at least partially simultaneously with or after performing the access to the non-terrestrial cell.

[0177] According to one embodiment, the operation of performing at least one operation for connection to the non-terrestrial cell using the second protocol stack may be performed based on the at least one first scan result where no terrestrial cell is identified and based on at least some of the at least one second scan result where the non-terrestrial cell is identified, thereby performing at least one operation for connection to the non-terrestrial cell.

[0178] In one embodiment, the at least one operation may include performing at least one operation for accessing the terrestrial cell based on at least some of the at least one first scan result, wherein the terrestrial cell is identified, and based on at least some of the at least one second scan result, the non-terrestrial cell is identified.

[0179] According to one embodiment, the operation of performing at least one operation for connection to the non-terrestrial network cell using the second protocol stack may include performing at least one operation for connection to the non-terrestrial network cell based on the detected non-terrestrial network cell being a non-terrestrial network preferred cell.

[0180] In one embodiment, the at least one operation may include an operation of checking for a scan resumption event for the ground network after disabling a scan operation for the ground network.

[0181] In one embodiment, the at least one operation may include performing a scan of the terrestrial network using the first protocol stack based on confirmation of the scan resume event.

[0182] According to one embodiment, the operation of checking for a scan resumption event for the terrestrial network may include checking for expiration of a timer initiated based on deactivation of an operation using the first protocol stack, checking that an RRC state for the non-terrestrial network is idle, and / or checking that a service based on the non-terrestrial network is not performed.

[0183] According to one embodiment, the at least one operation may include receiving, using the second protocol stack, an RRC reconfiguration message including a measurement object for a surrounding terrestrial cell of the non-terrestrial cell (e.g., a target terrestrial cell at least partially overlapping and / or adjacent to the non-terrestrial cell), while connected to a network based on the non-terrestrial cell.

[0184] According to one embodiment, the at least one operation may include performing a measurement on the surrounding terrestrial network cell based on the measurement object included in the RRC reconfiguration message, using the second protocol stack.

[0185] According to one embodiment, the at least one operation may include transmitting, using the second protocol stack, a measurement report including at least a portion of a result of the measurement for the surrounding terrestrial network cell based on the result of the measurement satisfying a reporting condition included in the RRC reconfiguration message.

[0186] In one embodiment, the at least one operation may include receiving, using the second protocol stack, a handover command to the surrounding terrestrial network cell in response to the measurement report.

[0187] According to one embodiment, the at least one operation may include performing at least one operation for handover to the surrounding terrestrial network cell using information about the surrounding terrestrial network cell included in the handover command, based on the first protocol stack.

[0188] According to one embodiment, while at least one operation for handover to the surrounding terrestrial cell is performed, the connection to the non-terrestrial cell using the second protocol stack may be maintained.

[0189] In one embodiment, the at least one operation may include releasing a connection to the non-terrestrial cell using the second protocol stack based on a successful handover to the peripheral terrestrial cell according to at least one operation for handover to the peripheral terrestrial cell, and performing at least one scan associated with the second SIM based on the second protocol stack.

[0190] According to one embodiment, the electronic device (101) may include a memory (130) and at least one processor (120) operatively connected to the memory (130).

[0191] The memory (130) stores at least one instruction, and the at least one instruction, when executed by the at least one processor (120), causes the electronic device (101) to perform at least one operation.

[0192] According to one embodiment, the at least one operation may include an operation of identifying a failure of a first communication corresponding to a first protocol stack (511) corresponding to a first SIM (111) available to the at least one processor (120) and a failure of a second communication corresponding to a second protocol stack (512) corresponding to a second SIM (112) available to the at least one processor (120).

[0193] According to one embodiment, the method may include performing at least one first scan for a terrestrial network using the first protocol stack and performing at least one second scan for a non-terrestrial network using the second protocol stack simultaneously with at least a portion of the at least one first scan, based on the confirmation of failure for the first communication and the second communication.

[0194] Electronic devices according to the 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 disclosed in this document are not limited to the aforementioned devices.

[0195] The embodiments of this document and the terminology used herein 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.

[0196] The term "module" used in the 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).

[0197] One embodiment of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0198] According to one embodiment, the method according to one embodiment disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0199] According to one embodiment, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and arranged in other components. According to one embodiment, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to one embodiment, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. A computer-readable storage medium storing at least one instruction, wherein the at least one instruction, when executed by at least one processor (120) of an electronic device (101), causes the electronic device (101) to perform at least one operation, At least one of the above actions: An operation of confirming a failure of a first communication corresponding to a first protocol stack (511) corresponding to a first SIM (111) available to at least one processor (120) and a failure of a second communication corresponding to a second protocol stack (512) corresponding to a second SIM (112) available to at least one processor (120); and An operation of performing at least one first scan for a terrestrial network using the first protocol stack, and performing at least one second scan for a non-terrestrial network using the second protocol stack simultaneously with at least a part of the at least one first scan, based on the confirmation of failure of the first communication and the second communication. A storage medium containing.

2. In paragraph 1, The at least one first scan is at least one scan using the first protocol stack for at least one of a terrestrial network associated with the first SIM or a terrestrial network associated with the second SIM, A storage medium wherein said at least one second scan is at least one scan using said second protocol stack for a non-terrestrial network associated with said first SIM or a non-terrestrial network associated with said second SIM.

3. In paragraph 1, The at least one first scan is at least one scan using the first protocol stack for the terrestrial network associated with the first SIM and the terrestrial network associated with the second SIM, A storage medium wherein said at least one second scan is at least one scan using said second protocol stack for a non-terrestrial network associated with said first SIM or for a non-terrestrial network associated with said second SIM.

4. In paragraph 1, wherein said at least one first scan is at least one scan using said first protocol stack for a terrestrial network associated with said first SIM; A storage medium wherein said at least one second scan is at least one scan using said second protocol stack for a non-terrestrial network associated with said first SIM or for a non-terrestrial network associated with said second SIM.

5. In any one of paragraphs 1 to 4, At least one of the above actions: If cell detection fails according to the at least one first scan and the at least one second scan, performing at least one third scan for a terrestrial network associated with the second SIM using the first protocol stack, and repeatedly performing the at least one second scan using the second protocol stack simultaneously with at least a part of the third scan. A storage medium containing.

6. In any one of paragraphs 1 to 5, At least one of the above actions: An operation of performing at least one third scan for a non-terrestrial network associated with the first SIM using the first protocol stack and performing at least one fourth scan for a terrestrial network associated with the second SIM using the second protocol stack if cell detection fails according to the at least one first scan and the at least one second scan. A storage medium containing.

7. In paragraph 1, The at least one first scan is at least one scan using the first protocol stack for at least one of a terrestrial network associated with the first SIM or a terrestrial network associated with the second SIM, A storage medium wherein said at least one second scan is at least one scan using said second protocol stack for at least one of a non-terrestrial network associated with said first SIM or a non-terrestrial network associated with said second SIM.

8. In any one of paragraphs 1 to 7, At least one of the above actions: If cell detection fails according to the at least one first scan and the at least one second scan, performing at least one third scan for a terrestrial network associated with the second SIM using the first protocol stack, and repeatedly performing the at least one second scan using the second protocol stack simultaneously with at least a part of the at least one third scan. A storage medium containing.

9. In any one of paragraphs 1 to 8, At least one of the above actions: An operation of performing at least one operation for accessing a non-terrestrial network cell identified based on at least some of the results of the at least one first scan and the at least one second scan using the second protocol stack. A storage medium containing.

10. In paragraph 9, At least one of the above actions: An operation of disabling a scan operation for the terrestrial network based on performance of at least one operation for accessing the non-terrestrial network cell. A storage medium containing.

11. In paragraph 9, At least one of the above actions: An operation of performing at least one operation for connection to the non-terrestrial network cell using the second protocol stack and performing a scan for the terrestrial network periodically using the first protocol stack that is not used for the connection at least partially simultaneously or after performing the connection to the non-terrestrial network cell. Including, An operation of performing at least one operation for accessing the non-terrestrial network cell using the second protocol stack is: A storage medium for performing at least one operation for accessing a non-terrestrial cell, based on at least one of the first scan results indicating that a terrestrial cell is not identified and at least some of the second scan results indicating that a non-terrestrial cell is identified.

12. In paragraph 9, At least one of the above actions: An operation of performing at least one operation for accessing the terrestrial network cell, based on at least some of the at least one first scan result, wherein the terrestrial network cell is identified, and based on at least some of the at least one second scan result, the non-terrestrial network cell is identified. A storage medium containing.

13. In paragraph 9, An operation of performing at least one operation for accessing the non-terrestrial network cell using the second protocol stack is: An operation for performing at least one operation for accessing the non-terrestrial network cell based on the detected non-terrestrial network cell being a non-terrestrial network preferred cell, At least one of the above actions: After disabling the scan operation for the above ground network, the operation of checking the scan resumption event for the ground network; and An operation of performing a scan on the terrestrial network using the first protocol stack based on the confirmation of the above scan resumption event. Including, The action to check for a scan resumption event for the above ground network is: A storage medium for verifying expiration of a timer initiated based on deactivation of an operation using the first protocol stack, verifying that an RRC state for the non-terrestrial network is idle, and / or verifying that a service based on the non-terrestrial network is not performed.

14. In paragraph 9, At least one of the above operations, using the second protocol stack: An operation of receiving an RRC reconfiguration message including a measurement object for a surrounding terrestrial cell at least partially overlapping and / or adjacent to the non-terrestrial cell while connected to a network based on the non-terrestrial cell; An operation of performing a measurement on the surrounding terrestrial network cell based on the measurement object included in the RRC reconfiguration message; An operation of transmitting a measurement report including at least a part of the results of the measurement based on the results of the measurement for the surrounding terrestrial network cell satisfying the reporting conditions included in the RRC reconfiguration message; and An action of receiving a handover command to the surrounding terrestrial network cell in response to the above measurement report. Including, At least one of the above actions: An operation of performing at least one operation for handover to a surrounding terrestrial network cell by using information about the surrounding terrestrial network cell included in the handover command based on the first protocol stack. Including, While at least one operation for handover to the above peripheral terrestrial cell is performed, the connection to the non-terrestrial cell using the second protocol stack is maintained, At least one of the above actions: An operation of releasing a connection to the non-terrestrial cell using the second protocol stack based on success of handover to the peripheral terrestrial cell according to at least one operation for handover to the peripheral terrestrial cell, and performing at least one scan associated with the second SIM based on the second protocol stack. A storage medium containing.

15. In an electronic device (101), memory (130); and comprising at least one processor (120) operatively connected to the above memory (130); The above memory (130) stores at least one instruction, and the at least one instruction, when executed by the at least one processor (120), causes the electronic device (101) to perform at least one operation. At least one of the above actions: An operation of confirming a failure of a first communication corresponding to a first protocol stack (511) corresponding to a first SIM (111) available to at least one processor (120) and a failure of a second communication corresponding to a second protocol stack (512) corresponding to a second SIM (112) available to at least one processor (120); and An operation of performing at least one first scan for a terrestrial network using the first protocol stack, and performing at least one second scan for a non-terrestrial network using the second protocol stack simultaneously with at least a part of the at least one first scan, based on the confirmation of failure of the first communication and the second communication. An electronic device (101) comprising:

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