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

Abstract

The present invention provides a device and a method which identify occurrence of an event for resuming communication in an idle state, compare a remaining provision time of a first cell provided by a first satellite with a service setup estimation time corresponding to the event, perform a cell search when it is identified that the remaining provision time of the first cell by the first satellite is less than the service setup estimation time corresponding to the event, and access a second cell and perform a service when it is identified that a remaining provision time of the second cell provided by a second satellite is greater than the service setup estimation time corresponding to the event.

Description

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

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

[0002] Recently, electronic devices supporting non-terrestrial network communication (e.g., satellite communication) are being actively introduced. As an example, electronic devices can communicate with a satellite of an existing satellite communication provider by utilizing that provider's frequency and communication method. As another example, electronic devices can communicate with a satellite using cellular frequencies according to the LTE (long-term evolution) standard (or 5G standard) based on the LTE standard. As yet another example, electronic devices can also communicate with a satellite based on the 5G NTN (non-terrestrial networks) standard.

[0003] For example, if an electronic device communicates with a non-terrestrial network based on LTE standards, some of the frequencies defined in LTE standards may be allocated to non-terrestrial communication. The electronic device may perform satellite communication using the protocol stack used in 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 and terrestrial communication. For example, the electronic device may perform operations to perform a cell scan, camp on to a cell satisfying cell selection criteria, and access a network (e.g., may include camp on, random access (RA) procedures, connection establishment procedures, and / or attach (or registration)). The electronic device may perform operations to camp on to a cell satisfying cell selection criteria and access a network without distinguishing between non-terrestrial and terrestrial communication. Accordingly, the electronic device can prepare to perform non-terrestrial communication in substantially the same manner as terrestrial communication.

[0004] The electronic device may include at least one processor and a memory for storing instructions.

[0005] When the above instructions are executed individually or collectively by the at least one processor, they may cause the electronic device to connect to a first cell provided by the first satellite.

[0006] When the above instructions are executed individually or collectively by the at least one processor, they may cause the electronic device to enter the idle state based on the condition of entering the idle state being satisfied after connecting to the first cell.

[0007] When the above instructions are executed individually or collectively by the at least one processor, they may cause the electronic device to detect the occurrence of an event to resume communication in the idle state.

[0008] When the above instructions are executed individually or collectively by the at least one processor, the electronic device may be caused to compare the remaining time of the provision of the first cell provided by the first satellite with the estimated time of service setup corresponding to the event, based on confirming the occurrence of the event.

[0009] When the above instructions are executed individually or collectively by the at least one processor, the electronic device may be caused to perform a cell search based on confirming that, according to the comparison result, the remaining time of provision of the first cell by the first satellite is less than the service setup estimated time corresponding to the event.

[0010] When the above instructions are executed individually or collectively by the at least one processor, the electronic device may be caused to connect to the second cell based on confirming that the remaining time of provision of the second cell provided by the second satellite, which is different from the first satellite identified according to the cell search result, is greater than the service setup estimated time corresponding to the event.

[0011] When the above instructions are executed individually or collectively by the at least one processor, they may cause the electronic device to perform a service corresponding to the event while connected to the second cell.

[0012] A storage medium for storing computer-readable instructions may be provided. When the instructions are executed individually or collectively by at least one processor of an electronic device, they may cause the electronic device to connect to a first cell provided by a first satellite.

[0013] When the above instructions are executed individually or collectively by the at least one processor, they may cause the electronic device to enter the idle state based on the condition of entering the idle state being satisfied after connecting to the first cell.

[0014] When the above instructions are executed individually or collectively by the at least one processor, they may cause the electronic device to detect the occurrence of an event to resume communication in the idle state.

[0015] When the above instructions are executed individually or collectively by the at least one processor, the electronic device may be caused to compare the remaining time of the provision of the first cell provided by the first satellite with the estimated time of service setup corresponding to the event, based on confirming the occurrence of the event.

[0016] When the above instructions are executed individually or collectively by the at least one processor, the electronic device may be caused to perform a cell search based on confirming that, according to the comparison result, the remaining time of provision of the first cell by the first satellite is less than the service setup estimated time corresponding to the event.

[0017] When the above instructions are executed individually or collectively by the at least one processor, the electronic device may be caused to connect to the second cell based on confirming that the remaining time of provision of the second cell provided by the second satellite, which is different from the first satellite identified according to the cell search result, is greater than the service setup estimated time corresponding to the event.

[0018] When the above instructions are executed individually or collectively by the at least one processor, they may cause the electronic device to perform a service corresponding to the event while connected to the second cell.

[0019] The method of operation of the electronic device may include the operation of connecting to a first cell provided by a first satellite.

[0020] The method of operation of the electronic device may include an operation of entering the idle state based on the condition of entering the idle state being satisfied after connecting to the first cell.

[0021] The method of operation of the electronic device may include an operation to confirm the occurrence of an event to resume communication in the idle state.

[0022] The method of operation of the electronic device may include, based on confirming the occurrence of the event, comparing the remaining time of provision of the first cell provided by the first satellite with the expected time of service setup corresponding to the event.

[0023] The method of operation of the electronic device may include an operation of performing a cell search based on confirming that, according to the comparison result, the remaining time of provision of the first cell by the first satellite is smaller than the service setup expected time corresponding to the event.

[0024] The method of operation of an electronic device may include the operation of connecting to the second cell based on confirming that the remaining time of provision of the second cell provided by the second satellite, which is different from the first satellite confirmed according to the cell search result, is greater than the service setup estimated time corresponding to the event.

[0025] The method of operation of the electronic device may include an operation of performing a service corresponding to the event while connected to the second cell.

[0026] FIG. 1 is a block diagram of an electronic device in a network environment according to one embodiment.

[0027] FIG. 2 is a diagram illustrating an electronic device and a remote communication network environment according to one embodiment.

[0028] FIG. 3 is a diagram illustrating the connection of an electronic device according to one embodiment.

[0029] FIG. 4 is a drawing for explaining a non-ground network system according to one embodiment.

[0030] FIGS. 5A, FIGS. 5B, FIGS. 5C, and FIGS. 5D are drawings for illustrating cell switching according to one embodiment.

[0031] FIGS. 6a, FIGS. 6b, and FIGS. 6c are drawings for illustrating cell switching according to one embodiment.

[0032] FIG. 6d is a diagram illustrating the cell provision time according to one embodiment.

[0033] FIG. 7a is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0034] FIG. 7b is a diagram illustrating the remaining cell provision time and service setup time according to one embodiment.

[0035] FIGS. 8A, FIGS. 8B, and FIGS. 8C are drawings for explaining cell switching according to the movement of a satellite according to one embodiment.

[0036] FIG. 9 is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0037] FIG. 10a is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0038] FIG. 10b is a diagram illustrating the start time of a service according to one embodiment.

[0039] FIG. 11a is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0040] FIG. 11b is a diagram illustrating the service start time according to one embodiment.

[0041] FIG. 12 is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0042] FIG. 13 is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0043] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to one embodiment. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or with an electronic device (104) or a server (108) through 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) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0044] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0045] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) 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. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence is performed, or through a separate server (e.g., server (108)). The learning algorithm may 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 may include a plurality of artificial neural network layers.An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), 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 the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0046] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0047] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0048] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0049] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0050] The display module (160) can visually provide information to an external (e.g., 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 said 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 the force generated by said touch.

[0051] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) connected directly or wirelessly to the electronic device (101).

[0052] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0053] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0054] The connection terminal (178) may include a connector through which the electronic device (101) can 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).

[0055] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0056] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0057] The power management module (188) can manage the power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0058] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0059] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an 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 include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and 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., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device (104) through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., 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 may 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 identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0060] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), 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), external electronic device (e.g., electronic device (104)), or network system (e.g., 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 realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mMTC, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for realizing URLLC.

[0061] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0062] According to one embodiment, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0063] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0064] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102, or 104) may be the same or different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104, or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or 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 provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within a 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.

[0065] FIG. 2 is a diagram illustrating an electronic device and a remote communication network environment according to one embodiment.

[0066] The electronic device (101) can transmit and / or receive data through a terrestrial network and / or a non-terrestrial network. The electronic device (101) may be identical to the configuration of the electronic device (101) shown in FIG. 1 or may include the configuration of the electronic device (101) shown in FIG. 1.

[0067] A terrestrial network may refer to a network capable of providing data communication through 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 on the ground). The terrestrial wireless communication device (210) may support at least one of the various communication methods supported by the electronic device (101). For example, the terrestrial wireless communication device (210) may include an eNodeB (e.g., an LTE-series base station) or a gNodeB (e.g., a 5G (or NR)-series base station), but there is no limitation on the type.

[0068] A non-ground network may refer to a network capable of providing data communication through at least one non-ground wireless communication device (220). For example, the non-ground wireless communication device (220) may include at least one of various communication devices, such as a base station or a repeater, that are not located on the ground. For example, the non-ground wireless communication device (220) may include a satellite and / or an unmanned aerial vehicle, but there is no limitation on the type thereof. 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.

[0069] The non-terrestrial wireless communication device (220) may support at least one of various wireless communication methods. For example, the non-terrestrial wireless communication device (220) may support NR NTN (non-terrestrial network) defined by 3GPP (3rd generation partnership project). Alternatively, the non-terrestrial wireless communication device (220) may support at least one of various communication methods based on communication standards such as LTE, GSM (global system for mobile communications), or CDMA (code-division multiple access), but there is no limitation on the type.

[0070] 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 interconnected network (e.g., a network provided by the same operator).

[0071] The electronic device (101) can perform wireless communication through a non-terrestrial network when communication with the terrestrial network is impossible or not smooth. Alternatively, the electronic device (101) may perform wireless communication through a non-terrestrial network regardless of the communication status with the terrestrial network depending on the case.

[0072] 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).

[0073] The processor (120) can control at least one other component (e.g., a hardware or software component) of an electronic device (101) connected to the processor (120) by executing instructions (e.g., a program (140) of FIG. 1) that are at least temporarily stored in memory (e.g., memory (130) of FIG. 1), and can perform various data processing or operations. According to one embodiment, the processor (120) can control overall operations related to terrestrial network communication and / or non-terrestrial network communication. For example, the processor (120) may include a communication processor related to terrestrial network communication and / or non-terrestrial network communication (e.g., an auxiliary processor (123) of FIG. 1).

[0074] The display module (160) can visually provide information to the outside of the electronic device (101) (e.g., user).

[0075] According to one embodiment, the display module (160) may display a user interface (UI) that displays information related to a terrestrial network and / or a non-terrestrial network. For example, the UI that displays information related to a terrestrial network and / or a non-terrestrial network may include at least one of the UIs that displays information related to the type of network (e.g., cellular communication (3G, 4G, or 5G), short-range communication (e.g., BT, or WIFI), or satellite communication), the type of network service provider (e.g., satellite communication service provider (e.g., Iridium), emergency service provider (ESP)), the strength of the network signal (e.g., signal strength bars, RSSI, or RSRP), the orientation of a communication device (satellite) included in the network (e.g., orientation, elevation angle, azimuth angle), presence information, and / or the network communication status (e.g., idle, transmit, or receive).

[0076] According to one embodiment, the display module (160) can display a UI representing a service related to a terrestrial network and / or a non-terrestrial network.

[0077] According to one embodiment, a service related to a terrestrial network and / or a 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.

[0078] According to one embodiment, the emergency message transmission service may include, but is not limited to, at least one of an SOS service status information provision service (e.g., an indication of SOS service availability), a government office information provision service, an emergency contact information provision service, a commercial phrase provision service that minimizes user text input, or a survey-based service for quickly conveying emergency situations (e.g., a service providing options for accident type, injury site, or medical information (e.g., age, gender, disease information, or medication information)).

[0079] According to one embodiment, the messaging service may include at least one of an SMS (small message service), an MMS (multimedia messaging service), or an RCS (rich communication suite) message, but is not limited thereto.

[0080] According to one embodiment, the data communication service may include a service through various applications (e.g., a web browser) that provide data communication.

[0081] According to one embodiment, the location-related service may include at least one of longitude / latitude coordinates, location-related map information of a non-ground communication device (220), navigation, or street view, but is not limited thereto.

[0082] According to one embodiment, UI examples are not limited to the examples mentioned and may be provided through other output devices (e.g., the acoustic output module (155) of FIG. 1).

[0083] 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 short-range wireless communication bands (e.g., BT, or WiFi), terrestrial network (e.g., cellular network) communication bands and / or non-terrestrial network bands, but are not limited thereto.

[0084] According to one embodiment, the electronic device (101) may support a frequency band associated with non-terrestrial wireless communication (e.g., n255, or n256). The electronic device (101) may perform non-terrestrial wireless communication using a frequency band associated with non-terrestrial wireless communication, but is not limited thereto. For example, the electronic device (101) may perform non-terrestrial wireless communication using at least a portion of a frequency band associated with terrestrial wireless communication.

[0085] According to one embodiment, the antenna module (197) can transmit a signal or power to an external source (e.g., an external electronic device) or receive it from an external source.

[0086] According to one embodiment, an electronic device (101) can wirelessly communicate with a non-terrestrial network using at least one of a plurality of antennas included in an antenna module (197). The at least one antenna supporting non-terrestrial wireless communication may include a dedicated antenna and / or a combined antenna. The dedicated antenna may include an antenna supporting a non-terrestrial network. The combined antenna may include an antenna supporting both a different type of network and a non-terrestrial network. For example, the electronic device (101) can communicate with at least one satellite (e.g., a GNSS satellite, or a satellite for emergency message services) using at least one non-terrestrial dedicated antenna. For example, the combined 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., an LTE (long term evolution) network). The electronic device (101) can support a non-terrestrial network using a plurality of antennas among the antennas supporting a terrestrial network.

[0087] Hereinafter, a satellite is primarily referred to as a non-terrestrial wireless communication device (220) in the present disclosure, and even if the satellite is referred to as providing wireless communication using a specific RAT (radio access technology) (e.g., LTE) or a specific function (e.g., a base station), this is merely an example and the type is not limited.

[0088] FIG. 3 is a diagram illustrating the connection of an electronic device according to one embodiment.

[0089] According to one embodiment, the electronic device (101) may be located within the coverage (315) of a ground wireless communication device (210) (hereinafter referred to as ground wireless communication coverage (315)) and / or the coverage (325) of a non-ground wireless communication device (220) (hereinafter referred to as non-ground wireless communication coverage (325). The non-ground wireless communication coverage (325) may be relatively larger than the ground wireless communication coverage (315) (e.g., 50 times larger). For example, the non-ground wireless communication coverage (325) may cover an area that the coverage (315) of the ground wireless communication device (210) does not cover, and accordingly, the electronic device (101) may perform communication even in an area where ground wireless communication is not supported.

[0090] According to one embodiment, an electronic device (101) may perform a cell scan within a terrestrial wireless communication coverage (315) and / or a non-terrestrial wireless communication coverage (325). As a result of performing the cell scan, the electronic device (101) may identify cells provided by a terrestrial wireless communication device (210) and / or cells provided by a non-terrestrial wireless communication device (220). If there are cells satisfying cell selection conditions, the electronic device (101) may perform at least some of the operations for connecting to a network (e.g., a non-terrestrial network and / or a terrestrial network). Here, the connection to the network may include, for example, at least some of the preceding operations for registering to the network (e.g., camp-on, or connection procedures (e.g., random access (RA) procedures)) and / or the operations for registering to the network (e.g., attach, or registration), but is not limited thereto. The electronic device (101) may perform at least some of the disconnection operations when disconnection from the network is required (e.g., moving to another network). The disconnection operation from the network may include at least some of detaching from the network, disconnecting, and / or declaring a radio link failure (RLF), but is not limited to the listed operations.

[0091] According to one embodiment, the electronic device (101) can perform at least some of the operations of cell scanning, disconnecting from a network, and / or connecting to a network depending on movement (330, 335).

[0092] According to one embodiment, if an electronic device (101) is located within a ground communication coverage (315) that is included in a non-ground wireless communication coverage (325), or is located in a boundary area of ​​the ground communication coverage (315), the electronic device (101) can perform access to a ground network and / or a non-ground network based on a policy of the electronic device (101) (e.g., a priority policy).

[0093] FIG. 4 is a drawing for explaining a non-ground network system (400) according to one embodiment.

[0094] 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).

[0095] According to one embodiment, the non-ground network system (400) may be implemented, for example, in a regenerative manner. When implemented in a regenerative manner, at least one non-ground wireless communication device (220) may include a base station (e.g., eNode B). The non-ground network system (400) may be implemented, for example, in a bent-pipe manner. The bent-pipe manner may include a passive relay method that performs frequency conversion and power amplification on a received signal. When the non-ground network system (400) is implemented in a bent-pipe manner, at least one non-ground wireless communication device (220) may include a repeater that converts (e.g., amplifies) and transmits the signal. The implementation method of the non-ground network system (400) and the role of the non-ground wireless communication device (220) described in FIG. 4 are merely examples and are not limited thereto.

[0096] 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 communicate with, for example, the electronic device (101) using a terrestrial network (e.g., cellular network) band and / or a non-terrestrial network band. The terrestrial network band may be, for example, an operating band supported by LTE (long term evolution) and / or NR (new radio), but is not limited. The non-terrestrial network band may include bands defined by 3GPP (e.g., n255 and / or n256 bands), but is not limited.

[0097] According to one embodiment, at least one radio unit (415) can 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) can communicate, for example, using 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.

[0098] According to one embodiment, at least one packet core (430) can transmit and receive data associated with an electronic device (101) using a radio unit (415). Accordingly, the packet core (430) can process 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) may include, for example, at least some of an evolved packet core (EPC) and / or a 5G core (5GC), but is not limited thereto. The packet core (430) may 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) may additionally be connected to a public switched telephone network (PSTN) (not shown) to transmit and receive data associated with the electronic device (101).

[0099] FIGS. 5a to 5d are drawings for explaining cell switching according to one embodiment.

[0100] According to one embodiment, referring to FIG. 5a, at a first time point, the first satellite (501) may provide at least one cell (Cell ID: 12, Cell ID: 11), and the second satellite (502) may provide at least one cell (Cell ID: 24, Cell ID: 23, Cell ID: 22, Cell ID: 21) (or may be described as forming cell coverage). Those skilled in the art will understand that the satellites (501, 502) may be referred to as non-terrestrial wireless communication devices (220) as described above. As in FIG. 5a, at least one satellite (501, 502) provides tens to thousands of RF beams, and each beam operates as a cell similar to (or identical to) a cell of a terrestrial network. The cell types provided by at least one moving satellite (501, 502) can be divided into earth fixed cells and moving cells. In the earth fixed cell, as shown in FIGS. 5a to 5d, at least one satellite (501, 502) can maintain a specific area on the surface as a specific cell through beam steering. For example, regarding a point where a cell (cell ID: 12) is formed as shown in FIG. 5a at a first time point, even if the first satellite (501) moves as shown in the second time point, the cell (cell ID: 12) at that point can be maintained through beam steering. However, cell switching may be required for areas where cell maintenance is impossible even with beam steering due to the movement of the first satellite (501), and cell switching can be classified into hard cell switching and soft cell switching. In FIGS. 5a to 5d, a hard cell switching method is described.For example, at the first time point, a cell (Cell ID: 11) is provided by the first satellite (501) as in FIG. 5a, but if the first satellite (501) moves as in FIG. 5b, it may be impossible to provide a cell by the first satellite (501) for that location. Accordingly, at the second time point, as in FIG. 5b, the second satellite (502) can provide a cell (Cell ID: 25) for that location by replacing the first satellite (501). The identification information of the cell provided by the second satellite (502) may be determined to be 21 instead of 25. In addition, for example, at the first time point, a cell (Cell ID: 22) is provided by the second satellite (502) as in FIG. 5a, but if the second satellite (501) moves as in FIG. 5b, it may be impossible to provide a cell by the second satellite (502) for that location. Accordingly, at the second time point, a third satellite (not yet shown, but 503 in FIG. 5c and 5d) can provide a cell (Cell ID: 35) for that location by replacing the second satellite (502) as in FIG. 5b. The identification information of the cell provided by the third satellite (503) may be determined to be 31 instead of 35. As shown in FIGS. 5a and 5b, a cell (cell ID: 21) provided by a second satellite (502) at a second time point may be provided in place of a cell (cell ID: 11) provided by a first satellite (501) at a first time point, and there may be no overlapping time between the cell (cell ID: 11) and the cell (cell ID: 21), and this may be referred to as a hard cell switching method.

[0101] Again, referring to FIG. 5b, at a second time point, the first satellite (501) may provide at least one cell (Cell ID: 12), and the second satellite (502) may provide at least one cell (Cell ID: 25, Cell ID: 24, Cell ID: 23, Cell ID: 22) (or may be described as forming cell coverage). The third satellite (503) may provide at least one cell (Cell ID: 35). Referring to FIG. 5c, at a third time point, the first satellite (501) may provide at least one cell (Cell ID: 12), and the second satellite (502) may provide at least one cell (Cell ID: 25, Cell ID: 24, Cell ID: 23, Cell ID: 22) (or may be described as forming cell coverage). The third satellite (503) can provide at least one cell (Cell ID: 35). Referring to FIG. 5d, at the fourth point in time, as the first satellite (501) moves, it can no longer provide cells for the corresponding points, and the second satellite (502) can provide at least one cell (Cell ID: 26, Cell ID: 25, Cell ID: 24, Cell ID: 23) (or may be described as forming cell coverage). The third satellite (503) can provide at least one cell (Cell ID: 36, Cell ID: 35). The cell (Cell ID: 12) in FIG. 5c can be switched to the cell (Cell ID: 26) in FIG. 5d, and the cell (Cell ID: 22) in FIG. 5d can be switched to the cell (Cell ID: 36) in FIG. 5d.

[0102] FIGS. 6a to 6c are drawings for explaining cell switching according to one embodiment. FIGS. 6a to 6c will be explained with reference to FIG. 6d. FIG. 6d is a drawing for explaining cell provision time according to one embodiment.

[0103] According to one embodiment, with reference to FIG. 6a, at a first time point, the first satellite (501) may provide at least one cell (Cell ID: 12, Cell ID: 11), and the second satellite (502) may provide at least one cell (Cell ID: 24, Cell ID: 23, Cell ID: 22, Cell ID: 21). In FIG. 6a to 6c, a soft cell switching method is described. For example, at a first time point, a cell (Cell ID: 11) is provided by the first satellite (501) as in FIG. 6a, but at a third time point, as in FIG. 6c, if the first satellite (501) has moved, it may be impossible to provide a cell by the first satellite (501) for that point. Accordingly, at the third time point, as shown in FIG. 6c, the second satellite (502) may replace the first satellite (501) and provide a cell (Cell ID: 25) for the corresponding point. The identification information of the cell provided by the second satellite (502) may be determined to be 21 instead of 25. Furthermore, for example, at the first time point, a cell (Cell ID: 22) was provided by the second satellite (502) as shown in FIG. 6a, but if the second satellite (501) has moved as shown in FIG. 6c, it may be impossible to provide a cell by the second satellite (502) for the corresponding point. Accordingly, at the third time point, as shown in FIG. 6c, the third satellite (503) may replace the second satellite (502) and provide a cell (Cell ID: 35) for the corresponding point. The identification information of the cell provided by the third satellite (503) may be determined as 31 instead of 35. At the second time point between the first time point and the third time point, as shown in FIG. 6b, the coverage of the cell (Cell ID: 11) formed by the first satellite (501) and the cell (Cell ID: 25) formed by the second satellite (502) may overlap for at least some period of time.At the second point in time, as shown in FIG. 6b, the coverage of the cell (Cell ID: 21) formed by the second satellite (502) and the cell (Cell ID: 35) formed by the third satellite (503) may overlap for at least some period, and this may be referred to as a soft cell switching method. In FIG. 6d, each cell provision period may be expressed chronologically. For example, the serving cell (Cell ID: 11) may be provided during the period (a) corresponding to FIG. 6a and the period (b) corresponding to FIG. 6b, and the target cell (Cell ID: 25) may be provided during the period (b) corresponding to FIG. 6b and the period (c) corresponding to FIG. 6c. The point in time when the provision of the serving cell (Cell ID: 11) ends can be named t-Service, and the point in time when the provision of the target cell (Cell ID: 25) begins can be named t-ServiceStart. t-Service may be an information element (IE) defined in Rel (release) 17 of the 3GPP (3rd generation partnership project). t-ServiceStart may be an IE defined in Rel 18 of the 3GPP. Switching based on t-ServiceStart may be named, for example, Rachless satellite switching. In this method, when cell switching based on two adjacent satellites (501, 502) is performed, the same physical cell identifier (PCI) as the serving cell may be provided by the target cell, and the electronic device (101) can communicate with the target cell only through downlink resynchronization without key exchange. Accordingly, compared to conventional handover, the time required for switching can be reduced.When soft cell switching is performed, cell switching may be performed in the interval between t-ServiceStart and t-Service, as shown in FIG. 6d. Meanwhile, for the electronic device (101) to perform a service, for example, in an idle state, a connection to the serving cell must first be performed, and time may be required as a procedure that must be performed in advance for the service must be performed. If the cell provision period (for example, the time remaining from the current time to the t-Service of the serving cell) is insufficient, the electronic device (101) may fail to connect to the serving cell, and consequently, the execution of the service may be delayed. For example, when an event for performing a voice call, data transmission / reception, or SMS (short messaging service) service in an idle state is triggered, a connection to the serving cell and setup for the service are required, and if the period overlaps with the cell switching period, the initial connection attempt may fail. In this case, the electronic device (101) must select another cell (e.g., reselection, but without limitation) and then attempt to reconnect. Alternatively, even if the setup for the service is successful, a service interruption may occur in the case of hard cell switching. In the case of soft cell switching, if the electronic device (101) lacks the time required for the handover, a handover failure may occur, and a delay and / or service interruption may occur until a new cell is found and the service is resumed. As the distance between the electronic device (101) and the satellite (501, 502) and the distance between the satellite (501, 502) and the ground station are relatively large, the transmission delay may be relatively large.In addition, compared to terrestrial networks, the service setup period for non-terrestrial networks is relatively long, and in the case of voice calls, the execution of the IMS (Internet Protocol Multimedia Subsystem) process may be required. Even if the service setup is completed before the t-Service time, time may be required for the electronic device (101) to perform the procedure of receiving measurement configurations of neighbor cells or candidate cells from the base station, reporting measurement results to the base station, and receiving a handover command from the base station in order to perform a general handover or conditional handover. Even if the electronic device (101) completes the service setup before the t-Service time, if there is insufficient time to perform the handover process (in this disclosure, handover may be replaced by conditional handover), the service may be disconnected before attempting the handover. In this case, there is also a possibility that there is no serving cell to which the electronic device (101) has returned due to the handover failure. The present disclosure compares the cell provision period and the expected service execution time, and determines whether to connect to a non-terrestrial network cell based on the comparison result, and this will be explained with reference to FIGS. 7a and 7b.

[0104] FIG. 7a is a drawing for explaining a method of operation of an electronic device according to one embodiment. The embodiment of FIG. 7a will be explained with reference to FIG. 7b. FIG. 7b is a drawing for explaining the remaining cell provision time and the service setup estimated time according to one embodiment.

[0105] According to one embodiment, the electronic device (101) may connect to a first cell provided by the first satellite (501) in operation 701. The electronic device (101) may enter an idle state in operation 703 based on the satisfaction of the conditions for entering an idle state. For example, the electronic device (101) may confirm the reception of an RRC release message based on the expiration of a radio resource control (RRC) inactivity timer as the satisfaction of the conditions for entering an idle state, but is not limited to this. In operation 705, the electronic device (101) may confirm the occurrence of an event to resume communication in the idle state. For example, the electronic device (101) may confirm at least one of an event for initiating a voice call, an event for transmitting and receiving data, or an event for transmitting and receiving SMS, but is not limited to the type of event for resuming communication. For example, referring to FIG. 7b, the electronic device (101) assumes that an event occurs at a first time point (t1). The electronic device (101) can compare the remaining time of provision of the first cell provided by the first satellite and the estimated time of service setup corresponding to the event (721) based on confirming the occurrence of the event in operation 707. The electronic device (101) can, for example, check the t-Service of the first cell included in the system information block (SIB) 19 received from the first cell. The electronic device (101) can check the remaining time of provision of the first cell by subtracting the current time point t1 from the t-Service of the first cell, but this is exemplary.

[0106] For example, the service setup time (721) corresponding to the event may be a constant stored in, for example, the electronic device (101). For example, in the case of data transmission and reception, in order to receive paging in idle mode or to perform data services, the electronic device (101) must establish an RRC connection with the satellite, establish an Internet PDN (packet data name) connection (or, which may be replaced by a PDU (packet data unit) session), transmit the first uplink data, and receive the first downlink data. Accordingly, the service setup time (721) corresponding to data transmission and reception may be the time required to establish the RRC connection, establish the Internet PDN connection, transmit the uplink data, and receive the downlink data. The time may be a constant determined experimentally and stored in the electronic device (101), for example, but there is no limitation. For example, for a voice call in idle mode, the electronic device (101) must establish an RRC connection with the satellite, establish an IMS PDN connection (or, which may be replaced by a PD session), perform an IMS signaling process, and accordingly, the electronic device (101), which is, for example, a mobile originating (MO) device, must receive a ringing signal. Accordingly, the estimated service setup time (721) corresponding to the voice call may be the time required to establish the RRC connection, establish the IMS PDN connection, perform the IMS signaling process, and receive the ringing signal. This time may also be, for example, a constant determined experimentally and stored in the electronic device (101), but there are no limitations.

[0107] For example, in the case of a terrestrial network, the service setup time (721) corresponding to data transmission and reception may be 400 to 500 ms, and the service setup time (721) corresponding to a voice call may be 2100 ms. However, in the case of a non-terrestrial network, it may take longer than in the case of a terrestrial network, and a longer time than these may be set as the event-specific service setup time (721). For example, in the case of a voice call, when performing the IMS process, satellite-to-satellite handover and / or cell switching may occur, and the time based on the delay and / or call failure resulting from this may be reflected in the service setup time (721), and there is no limit.

[0108] For example, the service setup time (721) may take into account the time required to perform a handover. For example, if cell switching occurs soon, the electronic device (101) must perform a handover to the changed cell, and the service setup time (721) corresponding to, for example, data transmission and reception may be the result of adding the time required to perform a handover to the time required to establish an RRC connection, establish an Internet PDN connection, transmit uplink data, and receive downlink data. For example, the service setup time (721) corresponding to a voice call may be the result of adding the time required to perform a handover to the time required to establish an RRC connection, establish an IMS PDN connection, perform an IMS signaling process, and receive a ringing signal. For example, the electronic device (101) may be implemented to use an estimated service setup time (721) that does not take into account handover when the time remaining until cell switching is greater than the threshold time, and to use an estimated service setup time (721) that takes into account handover when the time remaining until cell switching is less than the threshold time, but there are no limitations.

[0109] Meanwhile, the service setup estimated time (721) being stored as a constant in the electronic device (101) is merely illustrative. The service setup estimated time (721) may be provided by a server upon inquiry from the electronic device (101). In this case, based on the current location of the electronic device (101), the server may provide the service setup estimated time (721) corresponding to that location to the electronic device (101), without limitation. Alternatively, the electronic device (101) may be implemented to predict the service setup estimated time (721) by considering other parameters (e.g., electric field). For example, those skilled in the art will understand that in a weak electric field, the service setup estimated time (721) may be set relatively large depending on the reason for retransmission.

[0110] The electronic device (101) can perform a cell search in operation 709 based on confirming that the remaining time for providing the first cell by the first satellite is less than the service setup time (721) corresponding to the event, for example, as shown in FIG. 7b. If the remaining time for providing the first cell is less than the service setup time (721) corresponding to the event, the provision of the first cell may be terminated while the service setup is being performed, so the electronic device (101) needs to connect to another cell rather than connect to the first cell. In operation 711, the electronic device (101) can connect to the second cell based on confirming that the remaining time for providing the second cell provided by a second satellite different from the first satellite identified according to the cell search result is greater than the service execution time (721) corresponding to the event, as shown in FIG. 7b. The electronic device (101) can determine the time between the current time (e.g., t3 in FIG. 7b) and the t-Service of the second cell as the remaining time for the provision of the second cell. As the remaining time for the provision of the second cell is greater than the expected time (721) for performing the service corresponding to the event, the provision of the second cell can be prevented while the electronic device (101) is performing the service setup. The electronic device (101) can perform the service corresponding to the event while connected to the second cell in operation 713. For example, the electronic device (101) can first perform an operation for service setup and then perform the service. As described above, the connection to the cell due to the movement of the satellite can be prevented while the electronic device (101) is performing the operation for service setup.

[0111] The electronic device (101) may, for example, determine that the remaining time of service of the second cell is greater than the expected time of service execution (721) corresponding to the event, as in FIG. 7b, and additionally connect to the second cell based on the fact that the signal strength from the second cell is greater than or equal to a threshold strength. The signal strength may be expressed based on, for example, RSRP (reference signal received power), RSRQ (reference signal received quality), RSSI (received signal strength indicator), SINR (signal-to-interference-plus-noise ratio), SNR (signal-to-noise ratio), CINR (carrier-to-interference-plus-noise ratio), CQI (channel quality indicator), BLER (block error rate), TBS (transport block size), and / or MCS (modulation and coding scheme), but is not limited thereto. If the signal strength from the second cell is less than the threshold strength, the electronic device (101) may be configured not to connect to the second cell.

[0112] FIGS. 8a to 8c are drawings for explaining cell switching according to the movement of a satellite according to one embodiment.

[0113] In the embodiments of FIGS. 8a to 8c, the satellites (501, 502) may be moved, and soft cell switching may be performed accordingly. In FIG. 8a, cells (Cell 11, Cell 12, Cell 13, Cell 14, Cell 15) may be provided by the first satellite (501), and cells (Cell 21, Cell 22, Cell 23) may be provided by the second satellite (502). Meanwhile, in FIG. 8a, it may be prior to the provision of cell (Cell 25) by the second satellite (502). For example, the t-Service of cell (Cell 11) may be later (or have a larger value) than the t-Service of cell (Cell 14) and earlier (or have a smaller value) than cell (Cell 13), but there are no limitations. The t-Service of the cells (Cell 21, Cell 22, Cell 23) by the second satellite (502) may be relatively larger than that of the cells (Cell 11, Cell 12, Cell 13, Cell 14, Cell 15) of the first satellite (501). For example, the relationship between the t-Services of the cells may be as follows.

[0114] Cells (Cell 21, Cell 22, Cell 23) by the second satellite (502) >> Cell (Cell 13) > Cell (Cell 11) > Cell (Cell 14)

[0115] Meanwhile, in FIG. 8b, a cell (Cell 25) may be provided by the second satellite (502). Accordingly, the cell (Cell 25) provided by the second satellite (502) and the cell (Cell 11) provided by the first cell (501) may overlap at least partially and simultaneously. Meanwhile, at least some of the satellites (501, 502) may transmit a t-ServiceStart IE for the neighbor cell, or they may not transmit it. Even if the t-ServiceStart IE is not transmitted, the cells (e.g., Cell 11, Cell 25) provided by each of the satellites (501, 502) may be provided to overlap at least simultaneously for a certain period. If the t-ServiceStart IE is not transmitted, the electronic device (101) cannot determine the period during which the cells (Cell 11, Cell 25) overlap. However, even in this case, the electronic device (101) can identify the cell (Cell 25), for example, through a frequency scan. In FIG. 8b, the electronic device (101) in a connected mode connected to the cell (Cell 14) may switch from the cell (Cell 14) to the cell (Cell 24). Alternatively, the electronic device (101) in a connected mode connected to the cell (Cell 11) may switch from the cell (Cell 11) to the cell (Cell 25). In FIG. 8c, the provision of the cell (Cell 11) and cell (Cell 14) provided by the first satellite (501) may be terminated.

[0116] Meanwhile, referring again to FIG. 8a, the electronic device (101) may be placed at any one of a plurality of locations (P1, P2, P3, P4), for example. For example, when the electronic device (101) is placed at the first location (P1), the electronic device (101) can detect a signal of a cell (Cell 11). For example, when the electronic device (101) is placed at the second location (P2), the electronic device (101) can detect a signal of a cell (Cell 11) and / or a signal of a cell (Cell 13). For example, when the electronic device (101) is located at the third location (P3), the electronic device (101) can detect a signal of a cell (Cell 11) and / or a signal of a cell (Cell 14). For example, if the electronic device (101) is located at the fourth position (P4), the electronic device (101) can detect the signal of the cell (Cell 11) and / or the signal of the cell (Cell 22).

[0117] When the electronic device (101) confirms that an event for service setup has occurred, it may compare the remaining time for cell provision of the serving cell with the estimated time for service setup, as described above. If the remaining time for cell provision of the serving cell is shorter than the estimated time for service setup, the electronic device (101) may attempt to connect to a cell other than the serving cell. Meanwhile, if the time remaining until the service start time of the target cell is relatively large, the electronic device (101) may perform a search for a cell other than the target cell and connect to the cell identified as a result of the cell search. Those skilled in the art will understand that when performing a search for a cell, priority may be determined based on existing measurement results. Alternatively, the electronic device (101) may search for all possible cells (which may be referred to as a frequency scan). For example, if no cell based on the frequency scan is identified during a specified period, the electronic device (101) may perform a scan in an idle state, but there are no limitations.

[0118] FIG. 9 is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0119] According to one embodiment, the electronic device (101) may connect to a first cell provided by a first satellite in operation 901. The electronic device (101) may enter an idle state in operation 903 based on the condition for entering an idle state being satisfied. In operation 905, the electronic device (101) may confirm the occurrence of an event to resume communication in the idle state. In operation 907, the electronic device (101) may compare the remaining time of provision of the first cell provided by the first satellite with the estimated time of service setup corresponding to the event based on confirming the occurrence of the event. In operation 909, the electronic device (101) may confirm a second cell corresponding to information regarding the service start time based on confirming that the remaining time of provision of the first cell by the first satellite is less than the estimated time of service setup corresponding to the event. For example, the electronic device (101) can identify a second cell corresponding to information regarding the service start time based on confirming the t-ServiceStart IE for the second cell included in the SIB 19 provided from the first cell. The electronic device (101) can perform a search for the second cell (which may be named the target cell) based on confirming that the t-ServiceStart IE for the second cell exists, and can identify the second cell based on the search results. The electronic device (101) can connect to the second cell based on confirming that, in a 911 operation, the remaining time of provision of the second cell is greater than the estimated time of service setup corresponding to the event. The electronic device (101) can additionally connect to the second cell based on the fact that the signal strength of the second cell is greater than or equal to a threshold strength. The electronic device (101) can perform a service corresponding to an event while connected to the second cell in operation 913.

[0120] FIG. 10a is a drawing for explaining a method of operation of an electronic device according to one embodiment. FIG. 10a will be explained with reference to FIG. 10b. FIG. 10b is a drawing for explaining a service start time according to one embodiment.

[0121] According to one embodiment, the electronic device (101) can connect to a first cell provided by a first satellite in operation 1001. The electronic device (101) can enter an idle state in operation 1003 based on the condition for entering an idle state being satisfied. In operation 1005, the electronic device (101) can confirm the occurrence of an event to resume communication in the idle state. In operation 1007, the electronic device (101) can compare the remaining time of provision of the first cell provided by the first satellite with the estimated time of service setup corresponding to the event based on confirming the occurrence of the event. In operation 1009, the electronic device (101) can confirm that information regarding the service start time corresponding to the second cell exists based on confirming that the remaining time of provision of the first cell by the first satellite is less than the estimated time of service setup corresponding to the event, for example as in FIG. 10b. For example, the electronic device (101) can check whether there is a t-ServiceStart IE for the second cell included in the SIB 19 provided from the first cell. Based on confirming that there is information regarding the service start time corresponding to the second cell, the electronic device (101) can check in operation 1013 whether the service start time corresponding to the second cell has elapsed the current time. If the service start time corresponding to the second cell has elapsed the current time (operation 1013—yes), the electronic device (101) can connect to the second cell in operation 1015. For example, referring to FIG. 10b, the electronic device (101) can connect to the second cell as the provision of the second cell has already started when the current time tb is greater than the t-ServiceStart of the second cell.If the service start time corresponding to the second cell has not elapsed from the current time (operation 1013 - No), the electronic device (101) may, in operation 1017, wait until the service start time corresponding to the second cell and then connect to the second cell. For example, referring to FIG. 10b, the electronic device (101) may, if the current time ta is less than the t-ServiceStart of the second cell, wait until the provision of the second cell and then connect to the second cell. For example, the electronic device (101) may connect to the second cell based on confirming that the remaining time for the provision of the second cell is greater than the service setup time (721) corresponding to the event. For example, the remaining time for the provision of the second cell may be the period between the time after the t-serviceStart of the second cell (e.g., t4 in FIG. 10b) and the t-Service of the second cell. If the search for a target cell based on the confirmation of t-ServiceStart fails, the electronic device (101) may perform a neighbor cell search and / or frequency scan.

[0122] FIG. 11a is a drawing for explaining a method of operation of an electronic device according to one embodiment. FIG. 11a will be explained with reference to FIG. 11b. FIG. 11b is a drawing for explaining a service start time according to one embodiment.

[0123] According to one embodiment, the electronic device (101) can connect to a first cell provided by a first satellite in operation 1101. The electronic device (101) can enter an idle state in operation 1103 based on the condition for entering an idle state being satisfied. In operation 1105, the electronic device (101) can confirm the occurrence of an event to resume communication in the idle state. In operation 1107, the electronic device (101) can compare the remaining time of provision of the first cell provided by the first satellite with the estimated time of service setup corresponding to the event based on confirming the occurrence of the event. In operation 1109, the electronic device (101) can confirm that information regarding the service start time corresponding to the second cell exists based on confirming that the remaining time of provision of the first cell by the first satellite is less than the estimated time of service setup corresponding to the event. For example, as shown in FIG. 11b, based on confirming that the remaining time for providing the first cell by the first satellite is less than the expected service setup time corresponding to the event, the electronic device (101) can confirm that information regarding the service start time corresponding to the second cell exists. For example, the electronic device (101) can check whether there is a t-ServiceStart IE for the second cell included in the SIB 19 provided from the first cell. Based on confirming that information regarding the service start time corresponding to the second cell exists, the electronic device (101) can check in operation 1113 whether the time remaining until the service start time corresponding to the second cell is greater than or equal to a threshold time. As shown in FIG. 11b, the time remaining until the service start time may be the period from the current time to the t-ServiceStart of the second cell, but there is no limitation.If the time remaining until the service start time corresponding to the second cell is not greater than or equal to the threshold time (1113 operation—No), the electronic device (101) may connect to the second cell in the 1115 operation. If the time remaining until the service start time corresponding to the second cell is greater than or equal to the threshold time (1113 operation—Yes), the electronic device (101) may connect to the third cell identified based on the Naver cell search in the 1117 operation. For example, if the time remaining until the service start time corresponding to the second cell is greater than or equal to the threshold time, the electronic device (101) may perform a Naver cell search (or frequency scan) as the service execution is delayed until the second cell is provided. If the remaining time for cell provision of the cell identified as a search result is greater than the service setup estimated time (721), the electronic device (101) may connect to the identified cell.

[0124] FIG. 12 is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0125] According to one embodiment, the electronic device (101) can connect to a first cell provided by a first satellite in operation 1201. The electronic device (101) can enter an idle state in operation 1203 based on the condition for entering an idle state being satisfied. In operation 1205, the electronic device (101) can confirm the occurrence of an event to resume communication in the idle state. In operation 1207, the electronic device (101) can compare the remaining time of provision of the first cell provided by the first satellite with the estimated time of service setup corresponding to the event based on confirming the occurrence of the event. In operation 1209, the electronic device (101) can confirm that information regarding the service start time corresponding to the second cell exists based on confirming that the remaining time of provision of the first cell by the first satellite is less than the estimated time of service setup corresponding to the event. The electronic device (101) can check whether the remaining time of provision of the first cell is greater than or equal to the threshold time in operation 1211. If the remaining time of provision of the first cell is greater than or equal to the threshold time (operation 1211-e.), the electronic device (101) can connect to the second cell based on the Naver cell search result in operation 1213. If the remaining time of provision of the first cell is not greater than or equal to the threshold time (operation 1211-e.), the electronic device (101) can connect to the third cell based on the frequency search result in operation 1215. For example, if the remaining time of provision of the first cell is less than the threshold time, there is a possibility that a cell (Cell 14, Cell 15) based on soft cell switching as in FIG. 8b will be provided, but there is a possibility that it will not be provided to the electronic device (101) as Naver cell information. Accordingly, the electronic device (101) may search all possible frequencies, rather than Naver cell search, so as to search for cells (Cell 14, Cell 15) provided based on soft cell switching.

[0126] FIG. 13 is a drawing for explaining the operation method of an electronic device according to one embodiment.

[0127] According to one embodiment, the electronic device (101) may connect to a first cell provided by a first satellite in operation 1301. The electronic device (101) may enter an inactive state in operation 1303 based on the condition for entering an inactive state being satisfied. The condition for entering an inactive state may be the reception of an RRC release message with a suspension set, but is not limited thereto. In operation 1305, the electronic device (101) may confirm the occurrence of an event to resume communication in the inactive state. In operation 1307, the electronic device (101) may compare the remaining time of provision of the first cell provided by the first satellite with the estimated time for service setup corresponding to the event based on confirming the occurrence of the event. For example, the service setup time corresponding to an event in the idle state, as described with reference to FIG. 7a, may be set differently from the service setup time corresponding to an event in the inactive state, but those skilled in the art will understand that this is exemplary and may be set identically. For example, since the time required to resume communication in the inactive state is shorter than the time required to connect to the cell in the idle state, the service setup time corresponding to an event in the idle state may be greater than the service setup time corresponding to an event in the inactive state. The electronic device (101) can confirm that information regarding the service start time corresponding to the second cell exists based on confirming in operation 1309 that the remaining time of provision of the first cell by the first satellite is less than the service setup time corresponding to the event. The electronic device (101) can connect to the second cell based on confirming in operation 1311 that the remaining time of the second cell is greater than the service setup time corresponding to the event. The electronic device (101) can perform a service corresponding to an event while connected to the second cell in operation 1313.

[0128] The electronic device (101) may include at least one processor (120) and a memory (130) for storing instructions.

[0129] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to connect to a first cell provided by the first satellite.

[0130] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to enter the idle state based on the condition of entering the idle state being satisfied after connecting to the first cell.

[0131] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to detect the occurrence of an event to resume communication in the idle state.

[0132] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to compare the remaining time of the provision of the first cell provided by the first satellite with the expected time of service setup corresponding to the event, based on confirming the occurrence of the event.

[0133] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to perform a cell search based on confirming that the remaining time of provision of the first cell by the first satellite is less than the service setup time corresponding to the event according to the comparison result.

[0134] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to connect to the second cell based on confirming that the remaining time of provision of the second cell provided by the second satellite, which is different from the first satellite identified according to the cell search result, is greater than the service setup estimated time corresponding to the event.

[0135] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to perform a service corresponding to the event while connected to the second cell.

[0136] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to connect to the second cell as at least part of the operation of connecting to the second cell, based on confirming that the remaining time of provision of the second cell, confirmed according to the cell search result, is greater than the service setup time corresponding to the event, and based on confirming that the strength of the signal associated with the second cell is greater than or equal to a threshold strength.

[0137] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to confirm that the system information from the first cell includes information about the service start time corresponding to the second cell.

[0138] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to search for the second cell specified by the information included in the system information, based on the remaining time until the service start of the second cell identified based on the service start time corresponding to the second cell, which is less than the specified first threshold time, as at least part of the operation of performing a cell search based on confirming that the remaining time until the service start of the first cell by the first satellite is less than the service setup expected time corresponding to the event according to the comparison result.

[0139] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to check whether the time remaining until the service start of the second cell has passed the current time, based on the time remaining until the service start of the second cell being less than the specified first threshold time, as at least part of the operation of searching the second cell.

[0140] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to search the second cell based on the fact that the time remaining until the service start of the second cell is less than the specified first threshold time, as at least part of the operation of searching the second cell, based on the fact that the service start time of the second cell is determined to have passed the current time, or to search the second cell after waiting until the service start time of the second cell is determined to have not passed the current time.

[0141] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to search for a Naver cell based on the fact that the time remaining until the service start of the second cell, identified based on the service start time corresponding to the second cell, is greater than a specified first threshold time.

[0142] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to connect to a third cell identified as a search result of the Naver cell.

[0143] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to perform a neighbor cell search based on the remaining provision time of the first cell being longer than a threshold period as at least part of the operation of performing the cell search.

[0144] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to perform a frequency scan based on the remaining time of provision of the first cell being less than a threshold period as at least part of the operation of performing the cell search.

[0145] The remaining time of provision of the first cell is determined based on the first t-Service corresponding to the first cell, and / or the remaining time of provision of the second cell can be determined based on the first t-Service corresponding to the second cell.

[0146] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to connect to the first cell based on confirming that the remaining time of provision of the first cell by the first satellite is greater than or equal to the service setup time corresponding to the event according to the comparison result.

[0147] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to perform a service corresponding to the event while connected to the first cell.

[0148] A storage medium for storing computer-readable instructions may be provided. When the instructions are executed individually or collectively by at least one processor (120) of the electronic device (101), the electronic device (101) may cause the electronic device (101) to connect to a first cell provided by a first satellite.

[0149] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to enter the idle state based on the condition of entering the idle state being satisfied after connecting to the first cell.

[0150] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to detect the occurrence of an event to resume communication in the idle state.

[0151] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to compare the remaining time of the provision of the first cell provided by the first satellite with the expected time of service setup corresponding to the event, based on confirming the occurrence of the event.

[0152] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to perform a cell search based on confirming that the remaining time of provision of the first cell by the first satellite is less than the service setup time corresponding to the event according to the comparison result.

[0153] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to connect to the second cell based on confirming that the remaining time of provision of the second cell provided by the second satellite, which is different from the first satellite identified according to the cell search result, is greater than the service setup estimated time corresponding to the event.

[0154] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to perform a service corresponding to the event while connected to the second cell.

[0155] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to perform a service corresponding to the event while connected to the second cell.

[0156] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to connect to the second cell as at least part of the operation of connecting to the second cell, based on confirming that the remaining time of provision of the second cell, confirmed according to the cell search result, is greater than the service setup time corresponding to the event, and based on confirming that the strength of the signal associated with the second cell is greater than or equal to a threshold strength.

[0157] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to confirm that the system information from the first cell includes information about the service start time corresponding to the second cell.

[0158] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to search for the second cell specified by the information included in the system information, based on the remaining time until the service start of the second cell identified based on the service start time corresponding to the second cell, which is less than the specified first threshold time, as at least part of the operation of performing a cell search based on confirming that the remaining time until the service start of the first cell by the first satellite is less than the service setup expected time corresponding to the event according to the comparison result.

[0159] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to check whether the time remaining until the service start of the second cell has passed the current time, based on the time remaining until the service start of the second cell being less than the specified first threshold time, as at least part of the operation of searching the second cell.

[0160] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to search the second cell based on the fact that the time remaining until the service start of the second cell is less than the specified first threshold time, as at least part of the operation of searching the second cell, based on the fact that the service start time of the second cell is determined to have passed the current time, or to search the second cell after waiting until the service start time of the second cell is determined to have not passed the current time.

[0161] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to search for a Naver cell based on the fact that the time remaining until the service start of the second cell, identified based on the service start time corresponding to the second cell, is greater than a specified first threshold time.

[0162] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to connect to a third cell identified as a search result of the Naver cell.

[0163] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to perform a neighbor cell search based on the remaining provision time of the first cell being longer than a threshold period as at least part of the operation of performing the cell search.

[0164] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to perform a frequency scan based on the remaining time of provision of the first cell being less than a threshold period as at least part of the operation of performing the cell search.

[0165] The remaining time of provision of the first cell is determined based on the first t-Service corresponding to the first cell, and / or the remaining time of provision of the second cell can be determined based on the first t-Service corresponding to the second cell.

[0166] When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may be caused to connect to the first cell based on confirming that the remaining time of provision of the first cell by the first satellite is greater than or equal to the service setup time corresponding to the event according to the comparison result.

[0167] When the above instructions are executed individually or collectively by the at least one processor (120), they may cause the electronic device (101) to perform a service corresponding to the event while connected to the first cell.

[0168] The method of operation of the electronic device (101) may include the operation of connecting to a first cell provided by a first satellite.

[0169] The method of operation of the electronic device (101) may include the operation of entering the idle state based on the condition of entering the idle state after connecting to the first cell.

[0170] The method of operation of the electronic device (101) may include checking for the occurrence of an event to resume communication in the idle state.

[0171] The method of operation of the electronic device (101) may include, based on confirming the occurrence of the event, comparing the remaining time of provision of the first cell provided by the first satellite with the expected time of service setup corresponding to the event.

[0172] The method of operation of the electronic device (101) may include an operation of performing a cell search based on confirming that the remaining time of provision of the first cell by the first satellite according to the comparison result is smaller than the service setup expected time corresponding to the event.

[0173] The method of operation of the electronic device (101) may include the operation of connecting to the second cell based on confirming that the remaining time of provision of the second cell provided by the second satellite, which is different from the first satellite confirmed according to the cell search result, is greater than the service setup estimated time corresponding to the event.

[0174] The method of operation of the electronic device (101) may include an operation of performing a service corresponding to the event while connected to the second cell.

[0175] Based on confirming that the remaining time of provision of the second cell confirmed according to the cell search result is greater than the service setup estimated time corresponding to the event, the operation of connecting to the second cell may include the operation of connecting to the second cell based on confirming that the remaining time of provision of the second cell is greater than the service setup estimated time corresponding to the event and that the signal strength from the second cell is greater than or equal to a threshold strength.

[0176] The method of operating the electronic device may include an operation of confirming that the system information from the first cell includes information regarding the service start time corresponding to the second cell.

[0177] The operation of performing a cell search based on confirming that the remaining time for providing the first cell by the first satellite is smaller than the service setup estimated time corresponding to the event according to the above comparison result may include the operation of searching for the second cell designated by the information included in the system information based on the fact that the time remaining until the service start of the second cell, confirmed based on the service start time corresponding to the second cell, is smaller than the designated first threshold time.

[0178] The method of operation of the electronic device may include an operation to determine whether the time of service start of the second cell has passed the current time, based on whether the time remaining until the service start of the second cell is less than the specified first threshold time.

[0179] The method of operation of the electronic device may include searching for the second cell based on the confirmation that the service start time of the second cell has passed the current time, or searching for the second cell after waiting until the service start time of the second cell based on the confirmation that the service start time of the second cell has not passed the current time.

[0180] The method of operation of the electronic device may include an operation of searching for a Naver cell based on the fact that the time remaining until the service start of the second cell, confirmed based on the service start time corresponding to the second cell, is greater than a specified first threshold time.

[0181] The method of operation of the above electronic device may include the operation of connecting to a third cell identified as a search result of the above Naver cell.

[0182] The method of operation of the above electronic device may include an operation of performing a Naver cell search based on the remaining time of provision of the first cell being greater than or equal to a threshold period.

[0183] The method of operation of the electronic device may include an operation of performing a frequency scan based on the remaining time of provision of the first cell being less than a threshold period.

[0184] The remaining time of provision of the first cell is determined based on the first t-Service corresponding to the first cell, and / or the remaining time of provision of the second cell can be determined based on the first t-Service corresponding to the second cell.

[0185] The method of operation of the electronic device may include an operation of connecting to the first cell based on confirming that, according to the comparison result, the remaining time of provision of the first cell by the first satellite is greater than or equal to the service setup estimated time corresponding to the event.

[0186] The method of operation of the above electronic device may include an operation of performing a service corresponding to the event while connected to the first cell.

[0187] The electronic device according to the embodiments disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of this document is not limited to the devices described above.

[0188] The embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said 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 said items unless the relevant context clearly indicates otherwise. In this document, phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B, or C" each may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as “coupled” or “connected” to another (e.g., 2nd) component, with or without the terms “functionally” or “communicationly,” it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0189] The term “module” as 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, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof 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).

[0190] One embodiment of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to be operated 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 that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0191] According to one embodiment, the method according to the embodiments disclosed herein may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or distributed online (e.g., download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0192] According to one embodiment, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to one embodiment, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the components of the multiple components in the same or similar manner as those performed by the corresponding components among the multiple components prior to integration. According to one embodiment, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an electronic device (101), At least one processor (120); and The electronic device (101) includes a memory (130) for storing instructions, wherein the instructions are executed individually or collectively by the at least one processor (120): Connect to the first cell provided by the first satellite, and After connecting to the first cell, enter the idle state based on the satisfaction of the conditions for entering the idle state, and In the above children's state, check for the occurrence of an event to resume communication, and Based on confirming the occurrence of the above event, the remaining time of provision of the first cell provided by the first satellite is compared with the estimated service setup time corresponding to the event, and Based on confirming that the remaining time of provision of the first cell by the first satellite is smaller than the service setup estimated time corresponding to the event according to the above comparison result, a cell search is performed, and Based on confirming that the remaining provision time of the second cell provided by the second satellite, which is different from the first satellite identified according to the cell search result, is greater than the service setup estimated time corresponding to the event, the second cell is accessed, and An electronic device (101) that causes a service corresponding to the event to be performed while connected to the second cell.

2. In Paragraph 1, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) is enabled to access the second cell at least as part of an operation to access the second cell based on confirming that the remaining time of provision of the second cell, identified according to the cell search result, is greater than the service setup estimated time corresponding to the event: An electronic device (101) that causes a connection to the second cell based on confirming that the remaining time of provision of the second cell is greater than the service setup expected time corresponding to the event and that the strength of the signal associated with the second cell is greater than or equal to a threshold strength.

3. In any one of paragraphs 1 to 2, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) is: An electronic device (101) that causes confirmation that the system information from the first cell includes information about the service start time corresponding to the second cell.

4. In any one of paragraphs 1 to 3, The above instructions, when executed individually or collectively by the at least one processor (120), cause the electronic device (101) to perform a cell search based on confirming that, according to the comparison result, the remaining time of provision of the first cell by the first satellite is less than the service setup estimated time corresponding to the event, at least as part of the operation: An electronic device (101) that causes the search for the second cell specified by the information included in the system information, based on the fact that the time remaining until the service start of the second cell, confirmed based on the service start time corresponding to the second cell, is less than the specified first threshold time.

5. In any one of paragraphs 1 to 4, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) may, at least as part of an operation to search for the second cell based on the fact that the time remaining until the service start of the second cell is less than the specified first threshold time: Based on the fact that the time remaining until the service start of the second cell is less than the specified first threshold time, check whether the service start time of the second cell has passed the current time, and An electronic device (101) that causes the second cell to be searched based on the confirmation that the service start time of the second cell has passed the current time, or to be searched after waiting until the service start time of the second cell based on the confirmation that the service start time of the second cell has not passed the current time.

6. In any one of paragraphs 1 through 5, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) is: Based on the fact that the time remaining until the service start of the second cell, confirmed based on the service start time corresponding to the second cell, is greater than the specified first threshold time, a Naver cell is searched, and An electronic device (101) that causes access to a third cell identified as a search result of the above Naver cell.

7. In any one of paragraphs 1 through 6, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) is enabled to perform the cell search as at least part of the operation. An electronic device (101) that causes a Naver cell search to be performed based on the remaining time of provision of the first cell being longer than or equal to a threshold period.

8. In any one of paragraphs 1 through 7, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) is enabled to perform the cell search as at least part of the operation. An electronic device (101) that causes a frequency scan to be performed based on the remaining time provided by the first cell being less than a critical period.

9. In any one of paragraphs 1 through 8, The remaining provision time of the first cell is determined based on the first t-Service corresponding to the first cell, and / or The remaining time of provision of the second cell is an electronic device (101) that is verified based on the first t-Service corresponding to the second cell.

10. In any one of paragraphs 1 through 9, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) is: Based on confirming that the remaining provision time of the first cell by the first satellite is greater than or equal to the service setup estimated time corresponding to the event according to the above comparison result, connect to the first cell, and An electronic device (101) that causes a service corresponding to the event to be performed while connected to the first cell.

11. In a storage medium for storing computer-readable instructions, where said instructions are executed individually or collectively by at least one processor (120) of an electronic device (101), said electronic device (101) causes: Connect to the first cell provided by the first satellite, and After connecting to the first cell, enter the idle state based on the satisfaction of the conditions for entering the idle state, and In the above children's state, check for the occurrence of an event to resume communication, and Based on confirming the occurrence of the above event, the remaining time of provision of the first cell provided by the first satellite is compared with the estimated service setup time corresponding to the event, and Based on confirming that the remaining time of provision of the first cell by the first satellite is smaller than the service setup estimated time corresponding to the event according to the above comparison result, a cell search is performed, and Based on confirming that the remaining provision time of the second cell provided by the second satellite, which is different from the first satellite identified according to the cell search result, is greater than the service setup estimated time corresponding to the event, the second cell is accessed, and A storage medium that causes a service corresponding to the event to be performed while connected to the second cell.

12. In Paragraph 11, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) is enabled to access the second cell at least as part of an operation to access the second cell based on confirming that the remaining time of provision of the second cell, identified according to the cell search result, is greater than the service setup estimated time corresponding to the event: A storage medium that causes access to the second cell based on confirming that the remaining provision time of the second cell is greater than the service setup estimated time corresponding to the event, and that the signal strength from the second cell is greater than or equal to a threshold strength.

13. In any one of paragraphs 11 to 12, When the above instructions are executed individually or collectively by the at least one processor (120), the electronic device (101) is: A storage medium that causes confirmation that the system information from the first cell includes information regarding the service start time corresponding to the second cell.

14. In any one of paragraphs 11 through 13, The above instructions, when executed individually or collectively by the at least one processor (120), cause the electronic device (101) to perform a cell search based on confirming that, according to the comparison result, the remaining time of provision of the first cell by the first satellite is less than the service setup estimated time corresponding to the event, at least as part of the operation: A storage medium that causes the search for the second cell specified by the information included in the system information, based on the fact that the time remaining until the service start of the second cell, confirmed based on the service start time corresponding to the second cell, is less than a specified first threshold time.

15. In the method of operating the electronic device (101), The operation of connecting to a first cell provided by a first satellite; An operation to enter the idle state based on the satisfaction of the conditions for entering the idle state after connecting to the first cell; In the above idle state, an action of confirming the occurrence of an event to resume communication; Based on confirming the occurrence of the above event, an operation of comparing the remaining time of provision of the first cell provided by the first satellite with the estimated service setup time corresponding to the event; An operation to perform a cell search based on confirming, according to the above comparison result, that the remaining time of provision of the first cell by the first satellite is smaller than the service setup estimated time corresponding to the event; An operation to connect to the second cell based on confirming that the remaining provision time of the second cell provided by the second satellite, which is different from the first satellite identified according to the cell search result, is greater than the service setup estimated time corresponding to the event; and An operation to perform a service corresponding to the event while connected to the second cell. A method of operation of an electronic device (101) including

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