Network entity for allocating frequency for satellite communication and operating method thereof

Abstract

Disclosed is a network entity comprising at least one processor and a memory for storing instructions. The instructions, when executed individually or collectively by the at least one processor, may cause the network entity to: acquire a terrestrial network (TN) cell list indicating one or more terrestrial network cells that may at least partially overlap a non-terrestrial network (NTN) cell; determine, on the basis of traffic loads of the terrestrial network cells, a resource allocation ratio between the non-terrestrial cell and the terrestrial network cells for sharing a designated frequency band; determine, on the basis of the resource allocation ratio, first configuration information indicating frequency resource allocation for the non-terrestrial cell and second configuration information indicating frequency resource allocation for the terrestrial network cells; transmit the first configuration information to a non-terrestrial network base station for controlling a satellite serving the non-terrestrial network cell; and transmit the second configuration information to terrestrial network base stations serving the terrestrial network cells.

Description

Network object for allocating frequencies for satellite communication and method of operation thereof

[0001] Embodiments of the present disclosure relate to a method of operating a network object for allocating a frequency for satellite communication.

[0002] 5G mobile communication technology defines a wide frequency band to enable fast transmission speeds and new services, and can be implemented not only in sub-6GHz frequency bands such as 3.5 gigahertz (3.5GHz) but also in ultra-high frequency bands known as millimeter waves (mmWave), such as 28GHz and 39GHz, such as 'above 6GHz'. In addition, for 6G mobile communication technology, which is referred to as a system beyond 5G, implementation in the terahertz band (e.g., the 3 terahertz (3THz) band at 95GHz) is being considered to achieve transmission speeds 50 times faster and ultra-low latency reduced to one-tenth compared to 5G mobile communication technology.

[0003] In the early stages of 5G mobile communication technology, aiming to satisfy service support and performance requirements for enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC), technologies such as beamforming and massive MIMO to mitigate path loss and increase transmission distance in ultra-high frequency bands, support for various numerologies for the efficient utilization of ultra-high frequency resources (e.g., operation of multiple subcarrier spacings) and dynamic operation of slot formats, initial access techniques to support multi-beam transmission and broadband, definition and operation of band-width parts (BWPs), new channel coding methods like low-density parity check (LDPC) codes for high-volume data transmission and polar codes for reliable transmission of control information, L2 pre-processing, or networks providing dedicated networks specialized for specific services. Standardization of network slicing has been carried out.

[0004] Currently, discussions are underway to improve and enhance the performance of the initial 5G mobile communication technology, taking into account the services that the 5G mobile communication technology was intended to support. Additionally, physical layer standardization is in progress for technologies such as V2X (vehicle-to-everything), which helps autonomous vehicles make driving decisions and enhance user convenience based on their own location and status information transmitted by the vehicle; NR-U (new radio unlicensed), which aims for system operation in unlicensed bands that meets various regulatory requirements; UE power saving, which is a terminal-satellite direct communication technology for securing coverage in areas where communication with the terrestrial network is impossible; and positioning.

[0005] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.

[0006] Embodiments of the present disclosure may provide a network entity for allocating a frequency for satellite communication and a method of operating the same.

[0007] Embodiments of the present disclosure may provide a network entity performing dynamic spectrum sharing (DSS) technology and a method of operating the same.

[0008] Embodiments of the present disclosure may provide a network entity that enables a frequency band to be shared between a non-terrestrial network cell and a terrestrial network cell, and a method of operating the same.

[0009] A network entity according to one embodiment of the present disclosure may include at least one processor and a memory for storing instructions. When the instructions are executed individually or collectively by the at least one processor, the network entity may obtain a list of terrestrial (TN) cells representing one or more terrestrial cells that are at least partially overlappable with a non-terrestrial network (NTN) cell. When the instructions are executed individually or collectively by the at least one processor, the network entity may determine a resource allocation ratio between the non-terrestrial cell and the terrestrial cells for sharing a designated frequency band based on the traffic load of the terrestrial cells. When the instructions are executed individually or collectively by the at least one processor, the network entity may determine a first configuration information representing frequency resource allocation for the non-terrestrial cell and a second configuration information representing frequency resource allocation for the terrestrial cells based on the resource allocation ratio. When the above instructions are executed individually or collectively by the at least one processor, the network entity may transmit the first configuration information to a non-ground base station controlling a satellite that services the non-ground cell. When the above instructions are executed individually or collectively by the at least one processor, the network entity may transmit the second configuration information to ground base stations that service the ground cells.

[0010] A method performed by a network entity according to one embodiment of the present disclosure may include the operation of obtaining a list of terrestrial (TN) cells representing one or more terrestrial cells that are at least partially overlappable with a non-terrestrial (NTN) cell. The method may include the operation of determining a resource allocation ratio between the non-terrestrial cell and the terrestrial cells for sharing a designated frequency band based on the traffic load of the terrestrial cells. The method may include the operation of determining a first configuration information representing a frequency resource allocation for the non-terrestrial cell and a second configuration information representing a frequency resource allocation for the terrestrial cells based on the resource allocation ratio. The method may include the operation of transmitting the first configuration information to a non-terrestrial base station controlling a satellite that services the non-terrestrial cell. The method may include the operation of transmitting the second configuration information to terrestrial base stations that service the terrestrial cells.

[0011] In a non-transient computer-readable storage medium storing one or more programs according to one embodiment of the present disclosure, the one or more programs may include instructions that, when executed individually or collectively by at least one processor, cause a network entity to: obtain a list of terrestrial (TN) cells representing one or more terrestrial cells that may partially overlap with a non-terrestrial (NTN) cell; determine a resource allocation ratio between the non-terrestrial cell and the terrestrial cells for sharing a designated frequency band based on the traffic load of the terrestrial cells; determine first configuration information representing frequency resource allocation for the non-terrestrial cell and second configuration information representing frequency resource allocation for the terrestrial cells based on the resource allocation ratio; transmit the first configuration information to a non-terrestrial base station controlling a satellite that services the non-terrestrial cell; and transmit the second configuration information to terrestrial base stations that services the terrestrial cells.

[0012] The technical problems to be solved in this disclosure are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below.

[0013] In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0014] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.

[0015] FIG. 2a is a block diagram of an electronic device for supporting legacy network communication and 5G network communication according to one embodiment of the present disclosure.

[0016] FIG. 2b is a block diagram of an electronic device for supporting legacy network communication and 5G network communication according to one embodiment of the present disclosure.

[0017] FIGS. 3a, FIGS. 3b, and FIGS. 3c are drawings illustrating wireless communication systems providing a network of legacy communication and / or 5G communication according to embodiments of the present disclosure.

[0018] FIG. 4a is a diagram illustrating the concept of a frequency division multiplexing (DSS) method according to one embodiment of the present disclosure.

[0019] FIG. 4b is a diagram illustrating the concept of a time division multiplexing method DSS according to one embodiment of the present disclosure.

[0020] FIGS. 4c, FIGS. 4d, and FIGS. 4e are drawings illustrating examples of frequency allocation according to one embodiment of the present disclosure.

[0021] FIG. 5a is a diagram showing the structure of a multimedia broadcast multicast service single frequency network (MBSFN) subframe to which a DSS according to one embodiment of the present disclosure is applied.

[0022] FIG. 5b is a drawing showing the structure of a non-MBSFN subframe to which a DSS according to one embodiment of the present disclosure is applied.

[0023] FIG. 5c is a drawing showing the structure of a non-MBSFN subframe to which a DSS according to one embodiment of the present disclosure is applied.

[0024] FIG. 6 is a drawing showing the structure of a wireless frame according to one embodiment of the present disclosure.

[0025] FIG. 7a is a drawing illustrating an electronic device and a remote communication network environment according to one embodiment of the present disclosure.

[0026] FIG. 7b is a drawing for illustrating network access of an electronic device according to one embodiment of the present disclosure.

[0027] FIG. 7c is a drawing for illustrating a non-ground network system according to one embodiment of the present disclosure.

[0028] FIG. 8 is a diagram showing the overlap of ground network cells and non-ground network cells according to one embodiment of the present disclosure.

[0029] FIGS. 9a and 9b are drawings illustrating a system structure for controlling frequency allocation according to one embodiment of the present disclosure.

[0030] FIG. 10 is a flowchart illustrating a procedure for performing resource allocation for a non-terrestrial network and a terrestrial network according to one embodiment of the present disclosure.

[0031] FIG. 11 is a flowchart illustrating a procedure for determining the resource allocation ratio of a terrestrial network cell according to one embodiment of the present disclosure.

[0032] FIG. 12 is a drawing for explaining subframe allocation according to one embodiment of the present disclosure.

[0033] FIG. 13 is a drawing for illustrating an update of a DSS setting according to one embodiment of the present disclosure.

[0034] FIG. 14 is a drawing for explaining time synchronization according to one embodiment of the present disclosure.

[0035] FIG. 15 shows an example of a system configuration supporting spectrum sharing control according to one embodiment of the present disclosure.

[0036] FIG. 16 shows an example of a system configuration supporting spectrum sharing control according to one embodiment of the present disclosure.

[0037] Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In describing the embodiments of the present disclosure, specific descriptions of related known functions or configurations are omitted if it is determined that such detailed descriptions would unnecessarily obscure the essence of the present disclosure. Furthermore, terms used below are defined considering their functions in the embodiments of the present disclosure, and these may vary depending on the intent or practice of the user or operator. Therefore, such definitions should be based on the content throughout the present disclosure.

[0038] It should be noted that technical terms used in this disclosure are used merely to describe one embodiment and are not intended to limit this disclosure. Alternatively, unless specifically defined otherwise in this disclosure, technical terms used in this disclosure shall be interpreted in the sense generally understood by those skilled in the art to which this disclosure pertains, and shall not be interpreted in an overly broad or overly narrow sense. Alternatively, technical terms used in this disclosure may be understood as being replaced by other technical terms understood by those skilled in the art. General terms used in the embodiments of this disclosure shall be interpreted according to their prior definitions or according to the context, and shall not be interpreted in an overly narrow sense.

[0039] Singular expressions used in this disclosure may include plural expressions unless the context clearly indicates otherwise. In this disclosure, terms such as “composed” or “comprising” should not be interpreted as necessarily including all of the various components or operations described in the specification, and should be interpreted as some of the components or operations may not be included, or additional components or operations may be included.

[0040] Terms including ordinal numbers, such as first or second as used in this disclosure, may be used to describe various components, but said components should not be limited by said terms. Such terms may be used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the rights of this disclosure, the first component may be named the second component, and similarly, the second component may be named the first component.

[0041] When it is stated that one component is "connected" or "connected" to another component, it may be directly connected or connected to that other component, or there may be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0042] Hereinafter, embodiments according to the present disclosure will be described with reference to the attached drawings. Identical or similar components regardless of drawing symbols are given the same reference numeral, and redundant descriptions thereof will be omitted. In describing the embodiments of the present disclosure, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the present disclosure. It should be noted that the attached drawings are intended only to facilitate understanding of the embodiments of the present disclosure and should not be interpreted as limiting the present disclosure. The present disclosure should be interpreted as extending to all modifications, equivalents, and substitutions in addition to the attached drawings.

[0043] In this disclosure, embodiments will be described using an electronic device as an example, but the electronic device may be referred to as a terminal, mobile station, mobile equipment (ME), user equipment (UE), user terminal (UT), subscriber station (SS), wireless device, handheld device, or access terminal (AT). In the embodiments of this disclosure, the electronic device may be a device equipped with communication functions, such as a mobile phone, personal digital assistant (PDA), smartphone, wireless modem, or laptop.

[0044] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to various embodiments.

[0045] Referring to FIG. 1, in a network environment (100), an 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)).

[0046] 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 less 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.

[0047] 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.

[0048] 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).

[0049] 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).

[0050] 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).

[0051] 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.

[0052] 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.

[0053] 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).

[0054] 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.

[0055] 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.

[0056] 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).

[0057] 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.

[0058] 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.

[0059] 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).

[0060] 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.

[0061] 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).

[0062] 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.

[0063] 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).

[0064] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, 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.

[0065] 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.

[0066] 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 a 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.

[0067] FIG. 2a is a block diagram (200) of an electronic device (101) for supporting legacy network communication and 5G network communication according to one embodiment of the present disclosure.

[0068] Referring to FIG. 2a, the electronic device (101) may include a first communication processor (212), a second communication processor (214), a first radio frequency integrated circuit (RFIC) (222), a second RFIC (224), a third RFIC (226), a fourth RFIC (228), a first radio frequency front end (RFFE) (232), a second RFFE (234), a first antenna module (242), a second antenna module (244), a third antenna module (246), and antennas (248). The electronic device (101) may further include a processor (120) and a memory (130). The second network (199) may include a first cellular network (292) and a second cellular network (294).

[0069] According to one embodiment, the electronic device (101) may further include at least one of the components described in FIG. 1, and the second network (199) may further include at least one other network. According to one embodiment, the first communication processor (212), the second communication processor (214), the first RFIC (222), the second RFIC (224), the fourth RFIC (228), the first RFFE (232), and the second RFFE (234) may form at least a part of the wireless communication module (192). According to another embodiment, the fourth RFIC (228) may be omitted or included as part of the third RFIC (226).

[0070] In one embodiment, the first communication processor (212) may establish a communication channel in a band to be used for wireless communication with the first cellular network (292), and support legacy network communication through the established communication channel. According to one embodiment, the first cellular network may be a legacy network including a second generation (2G), 3G, 4G, or LTE (long term evolution) network. The second communication processor (214) may establish a communication channel corresponding to a designated band (e.g., about 6 GHz to about 60 GHz) among the bands to be used for wireless communication with the second cellular network (294), and support 5G network communication (e.g., NR (new radio) network communication) through the established communication channel. According to one embodiment, the second cellular network (294) may be a 5G network as defined by 3GPP. Additionally, according to one embodiment, the first communication processor (212) or the second communication processor (214) may support the establishment of a communication channel corresponding to another designated band (e.g., about 6 GHz or lower) among the bands to be used for wireless communication with the second cellular network (294), and 5G network communication through the established communication channel.

[0071] In one embodiment, the first communication processor (212) can transmit and receive data with the second communication processor (214). For example, data classified to be transmitted through the second cellular network (294) may be changed to be transmitted through the first cellular network (292). In this case, the first communication processor (212) can receive transmitted data from the second communication processor (214). For example, the first communication processor (212) can transmit and receive data with the second communication processor (214) through the inter-processor interface (213).

[0072] The above inter-processor interface (213) may be implemented, for example, as a UART (universal asynchronous receiver / transmitter) interface (e.g., HS-UART (high speed-UART) or PCIe (peripheral component interconnect bus express), but there is no limitation on the type. Alternatively, the first communication processor (212) and the second communication processor (214) may exchange control information and packet data information, for example, using shared memory. The first communication processor (212) may transmit and receive various information, such as sensing information, information on output strength, and RB (resource block) allocation information, to and from the second communication processor (214).

[0073] Depending on the implementation, the first communication processor (212) may not be directly connected to the second communication processor (214). In this case, the first communication processor (212) may transmit and receive data to and from the second communication processor (214) through a processor (120) (e.g., application processor). For example, the first communication processor (212) and the second communication processor (214) may transmit and receive data to and from the processor (120) (e.g., application processor) through an HS-UART interface or a PCIe interface, but there is no restriction on the type of interface. Alternatively, the first communication processor (212) and the second communication processor (214) may exchange control information and packet data information with the processor (120) (e.g., application processor) using shared memory.

[0074] According to one embodiment, the first communication processor (212) and the second communication processor (214) may be implemented within a single chip or a single package. According to one embodiment, the first communication processor (212) or the second communication processor (214) may be formed within a single chip or a single package with the processor (120), the auxiliary processor (123), or the communication module (190). For example, as shown in FIG. 2b, the integrated communication processor (260) may support functions for communication with both the first cellular network (292) and the second cellular network (294).

[0075] In one embodiment, the first RFIC (222) can convert a baseband signal generated by the first communication processor (212) during transmission into a radio frequency (RF) signal of about 700 MHz to about 3 GHz used in the first cellular network (292) (e.g., legacy network). During reception, the RF signal is acquired from the first network (292) (e.g., legacy network) through an antenna (e.g., first antenna module (242)) and can be preprocessed through an RFFE (e.g., first RFFE (232)). The first RFIC (222) can convert the preprocessed RF signal into a baseband signal so that it can be processed by the first communication processor (212).

[0076] In one embodiment, the second RFIC (224) can convert a baseband signal generated by the first communication processor (212) or the second communication processor (214) during transmission into an RF signal of the Sub6 band (e.g., about 6 GHz or lower) used in the second cellular network (294) (e.g., 5G network) (hereinafter, 5G Sub6 RF signal). During reception, the 5G Sub6 RF signal is acquired from the second cellular network (294) (e.g., 5G network) through an antenna (e.g., the second antenna module (244)) and can be preprocessed through an RFFE (e.g., the second RFFE (234)). The second RFIC (224) can convert the preprocessed 5G Sub6 RF signal into a baseband signal so that it can be processed by the corresponding communication processor among the first communication processor (212) or the second communication processor (214).

[0077] In one embodiment, the third RFIC (226) can convert a baseband signal generated by the second communication processor (214) into an RF signal of the 5G Above6 band (e.g., about 6 GHz to about 60 GHz) to be used in the second cellular network (294) (e.g., 5G network) (hereinafter, 5G Above6 RF signal). Upon reception, the 5G Above6 RF signal may be acquired from the second cellular network (294) (e.g., 5G network) through an antenna (e.g., antenna (248)) and preprocessed through the third RFFE (236). The third RFIC (226) can convert the preprocessed 5G Above6 RF signal into a baseband signal so that it can be processed by the second communication processor (214). According to one embodiment, the third RFFE (236) may be formed as part of the third RFIC (226).

[0078] In one embodiment, the electronic device (101) may include a fourth RFIC (228) separately from or at least as part of the third RFIC (226). In this case, the fourth RFIC (228) may convert a baseband signal generated by the second communication processor (214) into an RF signal (hereinafter referred to as an IF signal) in an intermediate frequency band (e.g., about 9 GHz to about 11 GHz) and then transmit the IF signal to the third RFIC (226). The third RFIC (226) may convert the IF signal into a 5G Above6 RF signal. Upon reception, the 5G Above6 RF signal may be received from the second cellular network (294) (e.g., a 5G network) through an antenna (e.g., antenna (248)) and converted into an IF signal by the third RFIC (226). The fourth RFIC (228) can convert the IF signal into a baseband signal so that the second communication processor (214) can process it.

[0079] According to one embodiment, the first RFIC (222) and the second RFIC (224) may be implemented as at least part of a single chip or a single package. According to one embodiment, when the first RFIC (222) and the second RFIC (224) in FIG. 2a or FIG. 2b are implemented as a single chip or a single package, they may be implemented as an integrated RFIC (not shown). In this case, the integrated RFIC may be connected to the first RFFE (232) and the second RFFE (234) to convert a baseband signal into a signal of a band supported by the first RFFE (232) and / or the second RFFE (234), and transmit the converted signal to either the first RFFE (232) or the second RFFE (234). According to one embodiment, at least one of the first antenna module (242) or the second antenna module (244) may be omitted or combined with another antenna module to process RF signals of a plurality of corresponding bands.

[0080] According to one embodiment, the third RFIC (226) and the antenna (248) may be placed on the same substrate to form a third antenna module (246). For example, a wireless communication module (192) or a processor (120) may be placed on the first substrate (e.g., main PCB). In this case, the third RFIC (226) may be placed on a portion of a second substrate (e.g., sub PCB) separate from the first substrate (e.g., bottom surface), and the antenna (248) may be placed on another portion of a second substrate (e.g., top surface) to form the third antenna module (246). By placing the third RFIC (226) and the antenna (248) on the same substrate, it is possible to reduce the length of the transmission line between them. This can, for example, reduce the loss (e.g., attenuation) of signals in the high-frequency band (e.g., about 6 GHz to about 60 GHz) used for 5G network communication by the transmission line. As a result, the electronic device (101) can improve the quality or speed of communication with the second network (294) (e.g., 5G network).

[0081] According to one embodiment, the antenna (248) may be formed as an antenna array comprising a plurality of antenna elements that can be used for beamforming. In this case, the third RFIC (226) may include a plurality of phase shifters (238) corresponding to the plurality of antenna elements, for example, as part of the third RFFE (236). During transmission, each of the plurality of phase shifters (238) can change the phase of a 5G Above6 RF signal to be transmitted to the outside of the electronic device (101) (e.g., a base station of a 5G network) through the corresponding antenna element. During reception, each of the plurality of phase shifters (238) can change the phase of a 5G Above6 RF signal received from the outside through the corresponding antenna element to the same or substantially the same phase. This enables transmission or reception through beamforming between the electronic device (101) and the outside.

[0082] In one embodiment, the second cellular network (294) (e.g., 5G network) may be operated independently of the first cellular network (292) (e.g., legacy network) (e.g., Stand-Alone (SA)) or connected to it (e.g., Non-Stand Alone (NSA)). For example, the 5G network may only have an access network (e.g., 5G radio access network (RAN) or next generation RAN (NG RAN)) and no core network (e.g., next generation core (NGC)). In this case, the electronic device (101) can access the access network of the 5G network and then access an external network (e.g., the Internet) under the control of the core network of the legacy network (e.g., evolved packed core (EPC)). Protocol information for communication with a legacy network (e.g., LTE protocol information) or protocol information for communication with a 5G network (e.g., New Radio (NR) protocol information) is stored in memory (230) and can be accessed by other parts (e.g., processor (120), first communication processor (212), or second communication processor (214)).

[0083] FIGS. 3a, 3b, and 3c are drawings illustrating wireless communication systems providing a network of legacy communication and / or 5G communication according to embodiments of the present disclosure. Referring to FIGS. 3a, 3b, and 3c, a network environment (300a to 300c) may include at least one of a legacy network and a 5G network. The legacy network may include, for example, a 4G or LTE base station (340) of 3GPP standard supporting wireless access with an electronic device (101) (e.g., eNB(eNodeB)) and an EPC (evolved packet core) (342) managing 4G communication. The above 5G network may include, for example, a New Radio (NR) base station (350) (e.g., gNB(gNodeB)) that supports wireless access to an electronic device (101) and a 5GC (5th generation core) (352) that manages 5G communication of the electronic device (101).

[0084] According to one embodiment, the electronic device (101) may transmit and receive control messages and user data via legacy communication and / or 5G communication. The control message may include, for example, a message related to at least one of security control, bearer setup, authentication, registration, or mobility management of the electronic device (101). The user data may refer to user data excluding control messages transmitted and received between the electronic device (101) and the core network (330) (e.g., EPC (342)).

[0085] Referring to FIG. 3a, the electronic device (101) can transmit and receive at least one of control messages or user data with at least one part of a 5G network (e.g., NR base station (350), 5GC (352)) using at least part of a legacy network (e.g., LTE base station (340), EPC (342)).

[0086] According to one embodiment, the network environment (300a) may include a network environment that provides wireless communication dual connectivity (DC) to an LTE base station (340) and an NR base station (350), and transmits and receives control messages to and from an electronic device (101) through a core network (230) of either an EPC (342) or a 5GC (352).

[0087] According to one embodiment, in a DC environment, one of the LTE base stations (340) or NR base stations (350) may operate as a master node (MN) (310) and the other as a secondary node (SN) (320). The MN (310) may be connected to a core network (230) to transmit and receive control messages. The MN (310) and the SN (320) may be connected via a network interface to transmit and receive messages related to the management of wireless resources (e.g., communication channels) to each other.

[0088] According to one embodiment, the MN (310) may be composed of an LTE base station (340), the SN (320) of an NR base station (350), and the core network (330) of an EPC (342). For example, control messages may be transmitted and received through the LTE base station (340) and the EPC (342), and user data may be transmitted and received through at least one of the LTE base station (340) or the NR base station (350).

[0089] According to one embodiment, the MN (310) may be composed of an NR base station (350), the SN (320) of an LTE base station (340), and the core network (330) of a 5GC (352). For example, control messages may be transmitted and received through the NR base station (350) and the 5GC (352), and user data may be transmitted and received through at least one of the LTE base station (340) or the NR base station (350).

[0090] Referring to FIG. 3b, the 5G network may be composed of an NR base station (350) and a 5GC (352), and may transmit and receive control messages and user data independently of the electronic device (101).

[0091] Referring to FIG. 3c, the legacy network and the 5G network can each provide data transmission and reception independently. For example, the electronic device (101) and the EPC (342) can transmit and receive control messages and user data through the LTE base station (340). As another example, the electronic device (101) and the 5GC (352) can transmit and receive control messages and user data through the NR base station (350).

[0092] According to one embodiment, the electronic device (101) can be registered with at least one of the EPC (342) or 5GC (352) to send and receive control messages.

[0093] According to one embodiment, the EPC (342) or 5GC (352) may interwork to manage the communication of the electronic device (101). For example, movement information of the electronic device (101) may be transmitted and received through an interface (not shown, e.g., N26 interface) between the EPC (342) and 5GC (352).

[0094] As described above, dual connectivity through LTE base station (340) and NR base station (350) may be named EN-DC (E-UTRA new radio dual connectivity).

[0095] Dynamic spectrum sharing (DSS) refers to a technology that enables different wireless communication technologies (e.g., LTE communication methods and NR communication methods) to be used in the same frequency band. For example, according to DSS, by dynamically allocating the same frequency resources to LTE communication network data or NR communication network data, each electronic device supporting LTE and NR can share resources in the same frequency and receive services.

[0096] In one embodiment, when data of an NR communication method is transmitted or received in a frequency band allocated for LTE with DSS applied, the electronic device (101) may anticipate or identify a slot (or subframe) that is not used for NR resource allocation (e.g., a non-MBSFN (multimedia broadcast multicast service single frequency network) subframe), and may operate in a sleep state or perform non-terrestrial network communication in the anticipated or identified slot (or subframe). The embodiments described below are not limited to a specific communication method (e.g., an NR communication method or an LTE communication method) and may be applied to any communication technology in which DSS is applied so that data corresponding to a first communication network and data corresponding to a second communication network share and use the same frequency band. For example, DSS application by terrestrial network communication such as an NR communication method and an LTE communication method may be applied in the same or similar manner to DSS by terrestrial network communication and non-terrestrial network communication.

[0097] FIGS. 4a, 4b, 4c, 4d, and 4e are drawings illustrating the concept of a DSS according to embodiments of the present disclosure. FIG. 4a is a drawing illustrating the concept of a DSS using a frequency division multiplexing (FDM) method according to one embodiment, and FIG. 4b is a drawing illustrating the concept of a DSS using a time division multiplexing (TDM) method according to one embodiment.

[0098] Referring to FIG. 4a, by applying DSS to a frequency band operated for a second communication network (e.g., LTE communication network), at least a portion of the frequency area (402) can be used for a first communication network (e.g., NR communication network), and the remaining frequency area (401) can be used for a second communication network (e.g., LTE communication network). For example, if the bandwidth of the frequency band operated for the second communication network is 20 MHz, 10 MHz can be used for transmitting and receiving data corresponding to the first communication network, and the remaining 10 MHz can be used for transmitting and receiving data corresponding to the second communication network. When DSS is applied to the above frequency band, an electronic device operating as NR (e.g., electronic device (101) of FIG. 1) can connect to an NR base station (NR PCell) and transmit and receive data through a frequency range (402) used for transmitting and receiving data corresponding to an NR communication network, and an electronic device operating as LTE can connect to an LTE base station (LTE PCell) and transmit and receive data through a frequency range (401) used for transmitting and receiving data corresponding to an LTE communication network.

[0099] In one embodiment, when applying DSS, the size of the frequency range allocated for the NR communication network within the total frequency bandwidth of 20 MHz operated for the LTE communication network can be dynamically adjusted over time (e.g., in subframe units). For example, the size of the frequency range used for the NR communication network within the total frequency bandwidth of 20 MHz may be allocated as 10 MHz at a first time point and as 8 MHz at a second time point. According to another embodiment, the entire total frequency bandwidth of 20 MHz may be used for the LTE communication network at the first time point, and a frequency range of 10 MHz within the total frequency bandwidth of 20 MHz may be used for the NR communication network at the second time point.

[0100] Referring to FIG. 4b, by applying DSS to radio frames operated for a second communication network (e.g., LTE communication network), at least some subframes (412, 413) can be used for a first communication network (e.g., NR communication network), and the remaining subframes (411, 414) can be used for the second communication network (e.g., LTE communication network).

[0101] For example, assuming that the time of one wireless frame is 10ms and that one wireless frame consists of 10 subframes, the time of one subframe can be 1ms. Referring to FIG. 4b, assuming that one wireless frame includes subframes 0 through 9 from left to right, LTE communication network data can be transmitted and received in subframe 0 (411), NR communication network data can be transmitted and received in subframe 1 (412) and subframe 2 (413), and LTE communication network data can be transmitted and received in the remaining subframes 3 through 9 (414).

[0102] According to one embodiment, when operating a time division multiplexing DSS as illustrated in FIG. 4b, NR communication network data transmission can be performed using MBSFN subframes configured for MBSFN (multimedia broadcast multicast service single frequency network) services. For example, if the first subframe (412) and the second subframe (413) are configured as MBSFN subframes, a base station (e.g., eNB) corresponding to an LTE communication network may transmit broadcast service data or not transmit any data through the first subframe (412) and the second subframe (413) configured as MBSFN subframes. According to one embodiment, a base station (e.g., eNB) corresponding to an LTE communication network may transmit LTE communication network data using the remaining subframes (411, 414) excluding the first subframe (412) and the second subframe (413) configured as MBSFN subframes.

[0103] According to one embodiment, if a base station (e.g., eNB) corresponding to an LTE communication network does not transmit broadcast service data or transmit any data through the first subframe (412) and the second subframe (413) set as the MBSFN subframe, the first subframe (412) and the second subframe (413) can be used as subframes for transmitting NR communication network data, thereby applying a time division multiplexing method DSS. According to one embodiment, a base station (e.g., gNB) corresponding to an NR communication network can transmit NR communication network data through the first subframe (412) and the second subframe (413) that are set as the MBSFN subframe and are not used by the base station (eNB) of the LTE communication network. According to one embodiment, a base station (e.g., gNB) corresponding to an NR communication network may transmit NR communication network data in at least one subframe that does not transmit LTE communication network data among subframe 0 (411) and subframes 4 through 9 (414) which are allocated for use in the base station (eNB) of the LTE communication network and are not set as the MBSFN subframe.

[0104] Referring to FIG. 4c and FIG. 4d, DSS can be applied to any one of the frequency bands (e.g., a first band (421) for downlink transmission and a second band (422) for uplink transmission) operated for a second communication network (e.g., an LTE communication network). For example, regarding the first band (421) allocated as the downlink band of the second communication network, it may be used as the downlink band (LTE DL) of the second communication network until time t1, and after time t1, all or at least part of the first band (421) may be used for data transmission of the first communication network (e.g., an NR communication network).

[0105] Referring to FIG. 4c, after time t1, data from the first communication network (e.g., NR communication network) can be transmitted in the time division duplex (TDD) manner in the first band (421). For example, the first band (421) can be used as the downlink band (NR DL) (423) of the first communication network from time t1 to time t2, and as the uplink band (NR UL) (424) of the first communication network from time t2.

[0106] Referring to FIG. 4d, after time t1, data of the first communication network (e.g., NR communication network) can be transmitted in the first band (421) using the frequency division duplex (FDD) method. For example, from time t1, a portion of the first band (421) (e.g., 5 MHz) can be used as the downlink band (NR DL) (434) of the first communication network, and the remaining portion of the first band (421) (e.g., 5 MHz) can be used as the uplink band (NR UL) (433) of the first communication network.

[0107] Referring to FIG. 4e, at least a portion of the entire frequency band allocated for the second communication network (LTE) may be used for the transmission of data from the first communication network (NR). The size of the resource allocated for the first communication network (NR) data (e.g., resource block (RB)) may change over time as illustrated in FIG. 4e. For example, an electronic device or base station may change the size of the resource allocated for the first communication network (NR) data in designated time units (e.g., every slot or every subframe (e.g., every 1ms period)) or in the scheduling cycle of the base station, but is not limited thereto.

[0108] According to one embodiment, the size or location of the resource allocated for the first communication network (NR) data may be changed in units of symbols (e.g., 1 / 14ms for normal CP (cyclic prefix), 1 / 12ms for extended CP). According to one embodiment, the resource allocated for the first communication network (NR) data in FIG. 4e may be allocated differently by subcarrier, resource block, and / or resource element even for the same symbol, the same subframe, or the same time interval.

[0109] FIG. 5a is a drawing showing the structure of an MBSFN subframe to which a DSS according to one embodiment of the present disclosure is applied.

[0110] Referring to FIG. 5a, an electronic device (101) can transmit and receive data of an NR communication system using a multi-broadcast single-frequency network (MBSFN) area (e.g., at least one MBSFN subframe (510)) defined for using eMBMS (evolved multimedia broadcast multicast services) in an LTE communication system. According to one embodiment, one MBSFN subframe (510) may include a total of 14 symbols along the time axis. A first area (511) containing the first two symbols in the MBSFN subframe (510) may be set as an area for LTE cell-specific reference signal (CRS) and physical downlink control channel (PDCCH) data transmission, and a second area (512) containing the remaining 12 symbols may be set as an area allocated for eMBMS services and as an area for transmitting and receiving data of an NR communication system.

[0111] FIG. 5b is a drawing showing the structure of a non-MBSFN subframe to which a DSS according to one embodiment of the present disclosure is applied.

[0112] Referring to FIG. 5b, the electronic device (101) can transmit and receive data of an NR communication system using at least some symbols of a non-MBSFN area (or non-MBSFN subframe (520)) that is not the MBSFN (multi-broadcast single-frequency network) area (or MBSFN subframe) of FIG. 5a defined in an LTE communication system. According to one embodiment, one non-MBSFN subframe (520) may include a total of 14 OFDM (orthogonal frequency division multiplex) symbols in the time axis. Some RE (resource element) (525) of symbols 0, 4, 7, and 11 in the non-MBSFN subframe (520) may be allocated to transmit LTE CRS data. In an NR communication system, NR communication system data can be transmitted and received through a designated shared frequency band in the remaining symbols (e.g., symbols 1 to 3, 5, 6, 8 to 10, 12, and 13), excluding the symbols that transmit the LTE CRS data (e.g., symbols 0, 4, 7, and 11).

[0113] In one embodiment, symbols capable of transmitting and receiving NR communication system data may form four regions (521, 522, 523, 524), and each region may be allocated for transmitting and receiving NR communication system data in the form of a mini-slot.

[0114] FIG. 5c is a drawing showing the structure of a non-MBSFN subframe to which a DSS according to one embodiment of the present disclosure is applied.

[0115] Referring to FIG. 5c, the electronic device (101) can transmit and receive data of an NR communication system using a non-MBSFN area (or non-MBSFN subframe (530)) rather than the MBSFN (multi-broadcast single-frequency network) area (or MBSFN subframe) of FIG. 5c defined in the LTE communication system. According to one embodiment, a non-MBSFN subframe may include a total of 14 OFDM symbols along the time axis. In the non-MBSFN subframe, symbols 0 and 1 may be allocated for the transmission of LTE control channel data. According to one embodiment, symbols 2 through 13 may be set as an area (531) for transmitting and receiving NR communication system data. Since LTE CRS can be transmitted in some REs of some symbols (e.g., symbol 4 (532), symbol 7 (533), symbol 11 (534)) of the area (531) for transmitting and receiving the above NR communication system data, LTE data and NR data can be transmitted overlaid in the above symbols (532, 533, 534).

[0116] In one embodiment, the electronic device (101) can apply CRS rate matching to symbols (532, 533, 534) in which LTE data and NR data are transmitted in overlap. For example, the electronic device (101) can puncture each RE used in the LTE CRS in the symbols (532, 533, 534) in which LTE data and NR data are transmitted in overlap, and accordingly, when decoding PDSCH data, the RE used in the LTE CRS can be checked in advance and excluded from decoding.

[0117] According to embodiments, each of the DSS methods of FIG. 5a, FIG. 5b, and FIG. 5c may be used optionally. For example, the DSS method using the MBSFN subframe (510) of FIG. 5a may be used as an essential method for SSB allocation of NR, and the DSS methods using the non-MBSFN subframes (520, 530) of FIG. 5b and FIG. 5c may be used additionally as needed.

[0118] According to one embodiment, when an electronic device (101) transmits and receives data of an NR communication system using a DSS method utilizing non-MBSFN subframes (520, 530) of FIGS. 5b and 5c, it may receive information regarding the MBSFN area and information regarding the LTE CRS location from a base station for LTE CRS rate matching as described above. For example, based on 3GPP standard document 38.331, the information regarding the LTE CRS location may be configured as shown in below, and the information regarding the MBSFN area may be configured as shown in below.

[0119]

[0120]

[0121] According to one embodiment, when an electronic device (101) transmits and receives data of an NR communication system using only the DSS method using the MBSFN subframe (510) of FIG. 5a, there is no need to perform LTE CRS rate matching, so information about the MBSFN area and information about the LTE CRS location may not be received from the base station. Since the electronic device (101) does not receive information about the MBSFN area and information about the LTE CRS location from the base station, it does not know the location of the MBSFN subframe (e.g., MBSFN subframe (510)), and thus can monitor downlink control data up to non-MBSFN subframes (e.g., MBSFN subframes (520, 530)) that are not MBSFN subframes. An electronic device (101) that transmits and receives data through an MBSFN-based DSS technology such as Fig. 5a can anticipate or identify a slot (or subframe) (e.g., a non-MBSFN subframe) that is not used for NR resource allocation, and can operate in a sleep state or perform non-terrestrial network communication through a shared frequency band in the anticipated or identified slot (or subframe).

[0122] Hereinafter, with reference to FIG. 6, examples of more detailed configurations of each subframe according to the DSS methods of FIG. 5a, 5b, and 5c will be described. FIG. 6 described below is an example of a DSS method related to FIG. 4b or FIG. 4e described above, but the embodiments described below are not limited to the above method and may be applied in the same or similar way to the method of FIG. 4a, FIG. 4c, or FIG. 4d.

[0123] FIG. 6 is a drawing showing the structure of a wireless frame according to one embodiment of the present disclosure.

[0124] Referring to FIG. 6, a single wireless frame (600) may include a plurality (e.g., 10) of subframes. When a single wireless frame (600) is 10 ms, each subframe may be 1 ms. According to one embodiment, at least one of the 10 subframes constituting a single wireless frame (600) may be set as an MBSFN subframe, and the remaining subframes may be set as non-MBSFN subframes.

[0125] According to one embodiment, information regarding the MBSFN subframe may be broadcast from a base station (e.g., an LTE base station (eNB)) via a system information block (SIB) 2, and an electronic device (101) may receive information regarding the MBSFN subframe regardless of whether it supports a broadcast service (e.g., eMBMS). For example, the SIB 2 may include an information element regarding the MBSFN subframe (MBSFN-SubframeConfig information element) configured as shown in Table 3 below.

[0126]

[0127] Referring to FIG. 6, it can be seen that subframes 1, 2, 3, 6, 7, and 8 of the wireless frame (600) are candidates that can be set as MBSFN subframes. According to one embodiment, when the electronic device (101) operates in FDD (frequency division duplex) mode, subframes 1, 2, 3, 6, 7, and 8 of the wireless frame (600) can be set as candidates for MBSFN subframes, and when it operates in TDD (time division duplex) mode, subframes 2, 3, 4, 7, 8, and 9 of the wireless frame (600) can be set as candidates for MBSFN subframes.

[0128] FIG. 6 illustrates a case where it operates in FDD mode, and it can be seen that among the MBSFN subframe candidates 1, 2, 3, 6, 7, and 8, subframe 1 (611) is set as the MBSFN subframe, and the remaining subframes are set as non-MBSFN subframes. As previously mentioned, the setting information of the MBSFN subframe can be verified through SIB 2 transmitted by the base station.

[0129] In one embodiment, a non-MBSFN subframe (e.g., subframe 2 (612)) may include a CRS to function as an LTE subframe, even if it is allocated for data transmission and reception in an NR communication network. The CRS is a reference signal transmitted at relatively high power that can be used for phase synchronization or channel estimation in an LTE communication network, and can be used to maintain time synchronization and frequency synchronization. For example, in the data domain of a non-MBSFN subframe, an LTE CRS (cell-specific reference signal) may be assigned to subcarriers 0, 3, 6, and 9 of symbols 32, 35, 36, and 39. As the LTE CRS is assigned, the NR PDSCH may be assigned to REs in the data domain where the LTE CRS is not assigned, and this may be referred to as CRS rate matching.

[0130] According to one embodiment, information for rate matching of LTE CRS for subframes to which DSS is applied is defined in the 3GPP TS 36.331 standard document in the format shown in below.

[0131]

[0132] According to one embodiment, in the case of a non-MBSFN subframe (e.g., subframe 2 (612)), NR data (e.g., NR PDSCH) may be allocated to a relatively smaller RE compared to an MBSFN subframe (e.g., subframe 1 (611)) due to LTE CRS rate matching.

[0133] FIG. 7a is a diagram illustrating an electronic device and a remote communication network environment according to one embodiment.

[0134] Referring to FIG. 7a, a user terminal (e.g., an electronic device (101)) can transmit and / or receive data through a terrestrial network (TN) and / or a non-terrestrial network (NTN). The electronic device (101) may be identical to the configuration of the electronic device (101) shown in FIG. 1 or may include at least some configuration of the electronic device (101) shown in FIG. 1.

[0135] In one embodiment, the ground network may refer to a network capable of providing data communication through a ground wireless communication device (e.g., a base station (702)). For example, the base station (702) may include a wireless communication device located on the ground (e.g., fixed on the ground). The base station (702) may support at least one of the various communication methods supported by the electronic device (101). For example, the base station (702) 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.

[0136] A non-ground network may refer to a network capable of providing data communication through at least one non-ground wireless communication device (e.g., a satellite (704)). For example, the satellite (704) may include at least one of various communication devices, such as a base station or a repeater, that is not located on the ground. For example, the satellite (704) may include a satellite and / or an unmanned aerial vehicle, but there is no limitation on the type. For example, the satellite (704) 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 (704) may include a mobile satellite and / or a geostationary satellite.

[0137] The satellite (704) may support at least one of various wireless communication methods. For example, the satellite (704) may support NR NTN (non-terrestrial network) defined by 3GPP (3rd generation partnership project). Alternatively, the satellite (704) 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.

[0138] 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).

[0139] The electronic device (101) can perform wireless communication through a non-ground network (e.g., a satellite (704)) when communication with a ground network (e.g., a base station (702)) is impossible or not smooth. Alternatively, the electronic device (101) may perform wireless communication through a non-ground network regardless of the communication status with the ground network, depending on the case.

[0140] 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).

[0141] 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. 1a), 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, a communication processor (212 and / or 214) of FIG. 2a, or a communication processor (260) of FIG. 2b).

[0142] The display module (160) can visually provide information to the outside of the electronic device (101) (e.g., user).

[0143] According to one embodiment, the display module (160) can display a user interface (UI) representing information related to a ground network and / or a non-ground network. For example, a UI representing information related to a terrestrial network and / or a non-terrestrial network may include at least one of the UIs representing information related to the type of network (e.g., cellular communication (3G, 4G, or 5G), short-range communication (e.g., BT (Bluetooth), 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 (receive signal strength indicator), or RSRP (reference signal received power)), the orientation (e.g., orientation, elevation angle, azimuth angle) of a communication device (e.g., satellite (704)) included in the network (e.g., non-terrestrial network), presence information, and / or the network communication status (e.g., idle, transmit, or receive).

[0144] According to one embodiment, the display module (160) may display a UI representing a service related to a terrestrial network and / or a non-terrestrial network. According to one embodiment, the 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.

[0145] 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)).

[0146] 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. According to one embodiment, the data communication service may include a service through various applications (e.g., a web browser) that provide data communication. According to one embodiment, the location-related service may include at least one of longitude / latitude coordinates, location-related map information of a satellite (e.g., satellite (704)), navigation, or street view, but is not limited thereto.

[0147] 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).

[0148] According to one embodiment, the wireless communication module (192) may support various types of wireless communication frequency bands supported by the electronic device (101). For example, the wireless communication frequency bands supported by the electronic device (101) may include a short-range wireless communication band (e.g., BT, or WiFi), a terrestrial network (e.g., cellular network) communication band and / or a non-terrestrial network communication band, but are not limited thereto.

[0149] According to one embodiment, the electronic device (101) may support at least one frequency band associated with non-terrestrial wireless communication. 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.

[0150] 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.

[0151] According to one embodiment, an electronic device (101) can communicate wirelessly 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., a 2G, 3G, 4G, LTE, or 5G NR (new radio) network). The electronic device (101) can support a non-terrestrial network using at least some of the antennas supporting a terrestrial network.

[0152] Even if the satellite (704) in the present disclosure is described as providing radio communication using a specific RAT (radio access technology) (e.g., LTE or 5G NR) or a specific function (e.g., a base station), this is merely an example and is not limited to any specific type.

[0153] FIG. 7b is a drawing for illustrating network access of an electronic device according to one embodiment of the present disclosure.

[0154] Referring to FIG. 7b, the electronic device (101) may be located within the coverage of a base station (702) (e.g., a terrestrial network (TN) cell (712)) and / or the coverage of a satellite (704) (e.g., a non-terrestrial network (NTN) cell (714)). In one embodiment, the terrestrial network cell (712) and / or the non-terrestrial network cell (714) may refer to a geographical or physical range where a signal of a specified frequency band is reachable. The non-terrestrial network cell (714) may be relatively larger (e.g., 50 times or more) than the terrestrial network cell (712). For example, the non-terrestrial network cell (714) may cover an area that the terrestrial network cell (712) does not cover, and accordingly, the electronic device (101) may communicate via the satellite (704) even outside the terrestrial network cell (712).

[0155] According to one embodiment, the electronic device (101) may perform a cell scan within a terrestrial network cell (712) and / or a non-terrestrial network cell (714). As a result of performing the cell scan, the electronic device (101) may identify a terrestrial network cell (712) provided by a base station (702) and / or a non-terrestrial network cell (714) provided by a satellite (704). If there is a cell that satisfies the cell selection criteria, 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). In one embodiment, 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.

[0156] In one embodiment, 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.

[0157] 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 (716 or 718).

[0158] According to one embodiment, if the electronic device (101) is located inside a terrestrial network cell (712) included in a non-terrestrial network cell (714) or is located in a boundary area of ​​the terrestrial network cell (712), the electronic device (101) can perform access to a terrestrial network (e.g., base station (702)) and / or a non-terrestrial network (e.g., satellite (704)) based on a specified policy (e.g., priority policy).

[0159] FIG. 7c is a drawing for illustrating a non-ground network system according to one embodiment of the present disclosure.

[0160] Referring to FIG. 7c, the non-ground network system (730) may include at least one satellite (e.g., satellite (704)), at least one ground station (e.g., ground station (722)), and / or a core network (CN) (724) (e.g., at least one CN node).

[0161] According to one embodiment, the non-ground network system (730) may be implemented, for example, in a regenerative manner. When implemented in a regenerative manner, the non-ground network system (730) may include at least one non-ground network wireless communication device (e.g., a base station). The non-ground network system (730) may be implemented, for example, in a bent-pipe manner. The bent-pipe manner may include a passive relay that performs frequency conversion and power amplification on a received signal. When the non-ground network system (730) is implemented in a bent-pipe manner, the non-ground network system (730) may include a repeater (e.g., a ground station (722)) that converts (e.g., amplifies) and transmits the signal from the satellite (704). The implementation method of the non-ground network system (730) and the role of the satellite (704) described in FIG. 7c are merely examples and are not limited thereto.

[0162] According to one embodiment, the satellite (704) may communicate with the electronic device (101) using, for example, a terrestrial network (e.g., cellular network) frequency band and / or a non-terrestrial network frequency band. The terrestrial network frequency band may be, for example, an operating band supported by LTE and / or NR, but is not limited. The non-terrestrial network frequency band may include bands defined by 3GPP, but is not limited.

[0163] According to one embodiment, at least one ground station (722) can receive a signal from a satellite (704) and transmit it to a core network (724). The ground station (722) and the satellite (704) can communicate, for example, using a non-ground network frequency band. The non-ground network frequency band may be different from, partially overlap with, or be the same as the ground network frequency band.

[0164] According to one embodiment, the core network (724) can transmit and receive data associated with the electronic device (101) using a ground station (722). The core network (724) can process data associated with the electronic device (101) and transmit it to a packet data network (726) (e.g., the internet). The core network (724) may include, for example, at least some of an evolved packet core (EPC) and / or a 5G core (5GC), but is not limited to. The core network (724) may include a packet core associated with an operator of a non-ground network system (730) and / or a packet core associated with a mobile network operator (MNO). The core network (724) may additionally be connected to a public switched telephone network (PSTN) (not shown) to transmit and receive call data associated with the electronic device (101).

[0165] In one embodiment, the non-terrestrial network system (730) can realize ubiquitous connectivity sought in 5G NTN or 6G by providing satellite communication in areas where terrestrial network cell towers (e.g., base station (702)) are not installed, and / or by providing satellite communication in shaded areas within the terrestrial network area.

[0166] An operator operating a non-terrestrial network system (730) may be allocated commercial frequencies to provide satellite communication services to users (e.g., electronic devices (101)) in the operator's service country and service area. The non-terrestrial network system (730) may be allocated frequency bands that are not used in the terrestrial network, or frequency bands that overlap with the terrestrial network frequency bands.

[0167] If a non-terrestrial network system (730) uses a frequency band that is not used in the terrestrial network, the satellite (704) can provide satellite communication services without being limited by interference with signals transmitted by base stations (e.g., base station (702)) of the terrestrial network. In this case, the capacity of the terrestrial network may be reduced because the frequency band allocated to the non-terrestrial network cannot be used in the terrestrial network. Since the utilization or traffic load of the terrestrial network is very high compared to the utilization or traffic load of the non-terrestrial network, it is not cost-effective to prevent the frequency band allocated to the non-terrestrial network from being used in the terrestrial network, and consequently, it may be difficult for the non-terrestrial network to be allocated a frequency band with a large bandwidth. Due to the bandwidth constraints used by the non-terrestrial network, the data capacity of the non-terrestrial network is limited, and the data services or data rates that the non-terrestrial network can provide to users may also be limited.

[0168] For example, if the satellite (704) uses a dedicated bandwidth of 5 MHz, the total data rate of the non-ground cell (e.g., non-ground cell (714)) may be about 10 Mbps. For example, if 10 users (e.g., electronic device (101)) are located within a non-ground cell (714) with a radius of 50 km, each user may use a data service of up to 1 Mbps. In one embodiment, the total data rate of the non-ground cell may be determined by the bandwidth used by the satellite, the altitude of the satellite, the transmission power, and / or the cell size.

[0169] If the non-terrestrial network system (730) uses a frequency band that overlaps at least partially with the frequency band used in the terrestrial network, the non-terrestrial network system (730) can secure a relatively wide bandwidth, but signals transmitted through the frequency band of the non-terrestrial network may cause interference with the signals of the terrestrial network. For example, a signal transmitted from a satellite (704) may cause interference across the entire service area of ​​the terrestrial network, thereby degrading the overall downlink performance of the terrestrial network. For example, an uplink signal transmitted from an electronic device (e.g., electronic device (101)) to a satellite (704) may cause serious interference with the uplink signals of the terrestrial network because it has relatively higher power compared to the signals of the terrestrial network. To prevent the aforementioned interference problem, the non-terrestrial network system (730) may stop satellite communication services in areas where terrestrial network services are provided. However, managing the on / off status of satellite communication services based on coverage information of a terrestrial network is very complex, and in particular, as the terrestrial network map becomes more complex and the size of non-terrestrial network cells (e.g., non-terrestrial network cells (714)) or the strength of the beam emitted from the satellite (220) increases, it may be very difficult to precisely control the on / off status of satellite communication services. For example, it may be practically difficult to accurately provide satellite communication services to shaded areas within the terrestrial network.

[0170] FIG. 8 is a diagram showing the overlap of ground network cells and non-ground network cells according to one embodiment of the present disclosure.

[0171] Referring to FIG. 8, ground network cells (e.g., ground network cells (822, 824, 826)) and non-ground network cells (e.g., non-ground network cells (802, 804, 806, 808, 810, 812)) are illustrated. At least one of the ground network cells (e.g., ground network cells (822, 824, 826)) may have a cell size of, for example, tens of meters to tens of kilometers, and at least one of the non-ground network cells (802, 804, 806, 808, 810, 812) may have a diameter of, for example, tens of kilometers to hundreds of kilometers. Each of at least one of the non-ground network cells (802, 804, 806, 808, 810, 812) (e.g., non-ground network cells (802, 804, 806)) may geographically overlap with tens to thousands of ground network cells.

[0172] In one embodiment, in an urban area, small-sized ground network cells (e.g., ground network cell (822)) may be located in a dense manner, so there may be no or very small blind spots for ground network communication. In a rural area, relatively large-sized ground network cells (e.g., ground network cell (824)) may be located in a less dense manner, so there may be blind spots for ground network communication (e.g., coverage holes (824a, 826a)). In one embodiment, blind spots not covered by ground network cells (e.g., ground network cells (922, 924, 926)) may occur not only at the cell boundary areas but also inside the cells due to environmental influences such as radio interference and / or buildings.

[0173] In one embodiment, when a user is moving, the electronic device carried by the user (e.g., electronic device (101)) may enter a shadow area (e.g., coverage holes (824a, 826a)) and then move out of the shadow area and reconnect to a ground network (e.g., base station (702)). In one embodiment, when the user is stationary after entering a shadow area, the electronic device carried by the user (e.g., electronic device (101)) may remain unable to connect to a ground network, and the electronic device may attempt to connect to a non-ground network (e.g., satellite (704)).

[0174] In one embodiment, when non-terrestrial network cells (e.g., non-terrestrial network cells (802, 804, 806, 808)) coexist with terrestrial network cells (e.g., terrestrial network cells (822, 824, 826)), an electronic device (e.g., electronic device (101)) may preferentially connect to a terrestrial network (e.g., base station (702)). This is because, in most cases, the service performance of terrestrial network communication (e.g., bandwidth (BW), signal-to-noise ratio (SNR), data throughput, and stability) is superior to that of non-terrestrial network communication. In one embodiment, an electronic device (e.g., electronic device (101)) may connect to a non-terrestrial network (e.g., satellite (704)) when a signal from a terrestrial network (e.g., base station (702)) is not detected or when the signal strength of the terrestrial network (e.g., base station (702)) is not high enough to use communication services.

[0175] In one embodiment, since terrestrial network cells (e.g., terrestrial network cells (822)) are densely arranged within the area of ​​a non-terrestrial network cell (802) without any shadow areas, an electronic device (e.g., electronic device (101)) located within the non-terrestrial network cell (802) can use communication services through a terrestrial network (e.g., base station (702)) without connecting to a non-terrestrial network (e.g., satellite (704)). In one embodiment, since there are shadow areas (e.g., coverage holes (824a)) between terrestrial network cells (e.g., terrestrial network cells (824)) within the area of ​​a non-terrestrial network cell (804), an electronic device (e.g., electronic device (101)) located within the non-terrestrial network cell (804) can sometimes use communication services through a non-terrestrial network (e.g., satellite (704)).

[0176] In one embodiment, an electronic device (e.g., electronic device (101)) located within the area of ​​non-ground network cells (806, 808, 810) can use communication services through a non-ground network (e.g., satellite (704)) in a terrestrial network shaded area (e.g., coverage hole (826a)) or in an area where no terrestrial network cell tower (e.g., base station (702)) exists. In one embodiment, since no terrestrial network cell exists within the area of ​​a non-ground network cell (812), an electronic device (e.g., electronic device (101)) located within the non-ground network cell (812) can use communication services through a non-ground network (e.g., satellite (704)).

[0177] In one embodiment, for the illustrated cell deployment, the traffic load order of the non-ground network can be roughly predicted as non-ground network cell (812) > non-ground network cell (810) > non-ground network cell (808) > non-ground network cell (806) > non-ground network cell (804) > non-ground network cell (802).

[0178] In one embodiment, a dedicated frequency band (e.g., dedicated spectrum) may be allocated for non-terrestrial network communication services. The bandwidth of the dedicated frequency band is at least 5 MHz for 5G and may be allocated in granularity of 5 MHz. As an example, a frequency band with a bandwidth of 20 MHz may be divided and allocated to a terrestrial network and a non-terrestrial network into 15 MHz and 5 MHz, or divided and allocated into 10 MHz and 10 MHz, or divided and allocated into 5 MHz and 15 MHz. As an example, a frequency band with a bandwidth of 15 MHz may be divided and allocated to a terrestrial network and a non-terrestrial network into 10 MHz and 5 MHz, or divided and allocated into 5 MHz and 10 MHz. As an example, a frequency band with a bandwidth of 10 MHz may be divided and allocated to a terrestrial network and a non-terrestrial network into 5 MHz and 5 MHz, respectively. If a non-terrestrial network uses a dedicated frequency band, the frequency band allocated to the non-terrestrial network cannot be used by the terrestrial network. Therefore, for example, for non-terrestrial network cells (802, 804) located in an area where terrestrial network cells are densely concentrated, the dedicated frequency band allocated to the non-terrestrial network may be wasted with almost no use.

[0179] In one embodiment, the ratio of frequency bands allocated to non-terrestrial networks and terrestrial networks may be applied differently depending on the region. For example, a frequency band of 20 MHz may not be allocated to non-terrestrial cells (e.g., non-terrestrial cells (802 or 804)) located in areas where terrestrial cells are densely concentrated, but may be allocated at a high rate to non-terrestrial cells (e.g., non-terrestrial cells (808, 810, or 812)) located in areas where terrestrial cells are not densely concentrated or do not exist (e.g., areas with high traffic load). In this case, depending on the configuration of the terrestrial cells, the complexity of cell planning and frequency allocation may increase, and the occurrence rate of inter-frequency handover in the terrestrial network may increase. Additionally, because non-terrestrial cells move according to the movement of the satellite (e.g., satellite (704)), allocating frequency bands of different bandwidths to each non-terrestrial cell may increase the control complexity of the non-terrestrial network.

[0180] Embodiments of the present disclosure can enable the sharing of frequency bands between a non-terrestrial network and a terrestrial network through a dynamic spectrum sharing (DSS) method. Embodiments of the present disclosure can dynamically adjust the frequency allocation ratio between a non-terrestrial network and a terrestrial network according to the regional traffic load of the non-terrestrial network and the terrestrial network.

[0181] FIGS. 9a and 9b are drawings illustrating a system structure for controlling frequency allocation according to one embodiment of the present disclosure.

[0182] Referring to FIG. 9a, the resource allocation controller (910) may be a network entity that performs spectrum sharing control (SSC). The resource allocation controller (910) is connected via a network interface to at least one non-terrestrial base station (920) (e.g., ground station (722)) that manages resource allocation for non-terrestrial communication services of non-terrestrial cells (e.g., non-terrestrial cells (802, 804, 806, 808, 810, or 812)) and at least one terrestrial base station (930) (e.g., base station (702)) that manages resource allocation for terrestrial communication services of terrestrial cells (e.g., terrestrial cells (822, 824, or 826)), and can control frequency allocation of the non-terrestrial base station (920) and the terrestrial base station (930).

[0183] In one embodiment, a non-ground network base station (920) may be configured to control a satellite (e.g., satellite (704)) corresponding to a non-ground network cell to transmit a wireless signal through the corresponding frequency and time resources based on resource allocation (e.g., DSS setting information) provided through a resource allocation controller (910). In one embodiment, the non-ground network base station (920) may control the wireless resources of the satellite (704) through a ground station (e.g., ground station (722)). In one embodiment, a ground network base station (930) may transmit a wireless signal through the corresponding frequency and time resources based on resource allocation (e.g., DSS setting information) provided through a resource allocation controller (910).

[0184] Referring to FIG. 9b, the resource allocation controller (910) may include a processor (912), memory (914), and a network interface (916). The network interface (916) may support a communication protocol so that the resource allocation controller (910) can communicate with a terrestrial base station (930) and a non-terrestrial base station (920). In one embodiment, the network interface (916) may be configured to communicate with the non-terrestrial base station (920) through a core network (CN) of the non-terrestrial network (e.g., the CN node (1518) in FIG. 15 or the CN node (1622) in FIG. 16). In one embodiment, the network interface (916) may be configured to communicate with the terrestrial base station (930) through a core network of the terrestrial network (e.g., the CN node (1522) in FIG. 15 or the CN node (1622) in FIG. 16).

[0185] In one embodiment, the processor (912) may include one or more processing circuits. In one embodiment, the memory (914) may store instructions and related data (e.g., cell placement information, traffic load information, and / or terrestrial network cell list(s)) for operating the resource allocation controller (910). When the instructions are executed by the processor (912), the resource allocation controller (910) may be operated according to the embodiments of the present disclosure.

[0186] In one embodiment, non-ground network communication services by a satellite (e.g., satellite (704)) may be provided nationwide, and each non-ground network cell may be composed of an earth fixed cell. In one embodiment, an earth fixed cell may be formed through beam steering of a designated satellite group comprising satellites (e.g., satellite (704)) moving along a designated orbit. The satellite (704) may maintain the beam and then stop transmitting the beam when the next satellite supports the earth fixed cell. Information regarding the location or size of each non-ground network cell according to the movement of the satellite group (e.g., satellite (704)) may be provided in advance to a resource allocation controller (910).

[0187] In one embodiment, the resource allocation controller (910) determines that the non-terrestrial network and the terrestrial network share a designated frequency band (e.g., a frequency band for terrestrial network communication services) and can adjust the resource allocation ratio by region according to the traffic load of the non-terrestrial network and the terrestrial network. In one embodiment, the resource allocation controller (910) can generate information (e.g., first DSS setting information) indicating the allocated resources of the non-terrestrial network (e.g., frequency band and / or subframe allocation) and information (e.g., second DSS setting information) indicating the allocated resources of the terrestrial network (e.g., frequency band and / or subframe allocation).

[0188] In one embodiment, the resource allocation controller (910) may transmit the first DSS setting information to a non-terrestrial base station (920) that controls resource allocation of a satellite (e.g., satellite (704)). In one embodiment, the first DSS setting information may be transmitted to the non-terrestrial base station (920) through a core network (CN) of the non-terrestrial network (e.g., CN node (1518) in FIG. 15 or CN node (1622) in FIG. 16). In one embodiment, the resource allocation controller (910) may transmit the second DSS setting information to a terrestrial base station (930). In one embodiment, the second DSS setting information may be transmitted to the terrestrial base station (930) through a core network of the terrestrial network (e.g., CN node (1522) in FIG. 15 or CN node (1622) in FIG. 16).

[0189] In one embodiment, the resource allocation controller (910) may allocate frequency bands at a relatively low rate to non-terrestrial cells (e.g., non-terrestrial cells (802, 804, or 806)) having small coverage and / or small traffic load, and may allocate frequency bands at a relatively high rate to non-terrestrial cells (e.g., non-terrestrial cells (812, 810, or 808)) having large coverage and / or high traffic load. In one embodiment, the resource allocation controller (910) may allocate frequency bands so that electronic devices (e.g., electronic devices (101)) located in areas where no terrestrial cell towers exist or in areas of terrestrial communication shadows can use good quality satellite communication services without significantly degrading terrestrial communication services.

[0190] In one embodiment, the resource allocation controller (910) may be configured to apply DSS technology to a non-terrestrial network and a terrestrial network. The resource allocation controller (910) may enable a non-terrestrial network cell and at least one terrestrial network cell to share a designated frequency band based on the number of users of the non-terrestrial network communication service and the terrestrial network communication service, the frequency band, and / or the traffic load. In one embodiment, the resource allocation controller (910) may enable a non-terrestrial network cell and at least one terrestrial network cell to selectively use a designated frequency band (e.g., a shared frequency band) on a subframe basis.

[0191] In one embodiment, the resource allocation controller (910) may determine that among the plurality of subframes (e.g., 10 subframes) constituting a wireless frame, a designated subframe (e.g., the MBSFN subframe (510) of FIG. 5a, or a non-MBSFN subframe (520 or 530)) is not used in terrestrial network cells, but instead is used in non-terrestrial network cells. In one embodiment, the resource allocation controller (910) may control the satellite (920) through the non-terrestrial network base station (920) so that the satellite (e.g., satellite (920)) provides non-terrestrial network communication services using the designated frequency band in the designated subframe, and control the terrestrial network base station (930) so that the terrestrial network base station (930) does not provide terrestrial network communication services through the designated frequency band in the designated subframe.

[0192] FIG. 10 is a flowchart illustrating a procedure for performing resource allocation for a non-terrestrial network and a terrestrial network according to an embodiment of the present disclosure. According to embodiments, at least one of the operations described below may be omitted, modified, or executed in a different order. In one embodiment, at least one of the operations described below may be executed by a processor (e.g., processor (912) in FIG. 9b) of a network entity (e.g., resource allocation controller (910) in FIG. 9a). In one embodiment, a memory (e.g., memory (914) in FIG. 9b) of a network entity (e.g., resource allocation controller (910) in FIG. 9a) may store instructions that cause the resource allocation controller (910) to operate according to at least one of the operations described below.

[0193] Referring to FIG. 10, in operation 1002, a resource allocation controller (910) (e.g., a processor (912)) may obtain a list of ground network cells for each non-ground network cell. Each list of ground network cells may include one or more ground network cells that are at least partially overlappable with the corresponding non-ground network cell. In one embodiment, the resource allocation controller (910) (e.g., a processor (912)) may generate, identify, or obtain a first list of ground network cells representing one or more first ground network cells that are overlappable with the first non-ground network cell and a second list of ground network cells representing one or more second ground network cells that are overlappable with the second non-ground network cell, based on the cell layout of the ground network and the cell layout of the non-ground network.

[0194] In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) may identify the location and size of each non-ground network cell (e.g., non-ground network cell (802, 804, 806, 808, 810, or 812)) according to the cell arrangement of the non-ground network, and may generate at least one list of ground network cells including ground network cells (e.g., ground network cells (822, 824, 826)) that overlap with the area of ​​each non-ground network cell. Since the size or shape of the corresponding non-ground network cell may change depending on the movement of the satellite (e.g., satellite (920)), the list of non-ground network cells may include all ground network cells that overlap with the non-ground network cell at least once for all cases in which the size and shape of the non-ground network cell change.

[0195] In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) may generate a list of at least one terrestrial network cells for each of at least one terrestrial network cell based on information regarding the cell placement of the non-terrestrial network obtained from the system operator of the non-terrestrial network or the core network, and information regarding the cell placement of the terrestrial network obtained from the system operator of the terrestrial network or the core network.

[0196] In operation 1004, the resource allocation controller (910) (e.g., processor (912)) may specify a frequency band and frequency bandwidth to be used in common by each non-terrestrial network cell and terrestrial network cell, and determine a resource allocation ratio between each non-terrestrial network cell and terrestrial network cell for sharing the specified frequency band. In one embodiment, the resource allocation controller (910) (e.g., processor (912)) may determine the resource allocation ratio based on at least one of the regional frequency distribution, number of users, or traffic load of terrestrial network cells included in the list of terrestrial network cells of the non-terrestrial network cell, and the expected traffic load for the non-terrestrial network.

[0197] In one embodiment, the resource allocation controller (910) (e.g., processor (912)) can determine the resource allocation ratio in subframe units, thereby selecting the resource allocation ratio as any one of 11 ratios from 0:10 to 10:0.

[0198] In one embodiment, the resource allocation controller (910) (e.g., processor (912)) can determine the terrestrial network cell list and resource allocation ratio as shown in the following .

[0199] Non-Terrestrial Network Cell Terrestrial Network Cell ID Resource Allocation Ratio (Non-Terrestrial Network:Terrestrial Network) Cell 1 (802) 1, 2, 3, 4, 6, ... 0:10 Cell 2 (804) 3, 5, 6, 8, 9, ... 1:9 Cell 3 (806) 2, 7, 10, 11, ... 3:7.........

[0200] In one embodiment, the resource allocation ratio may represent the ratio of the amount of available resources for the terrestrial network cells to the amount of available resources for the terrestrial network cells. In one embodiment, the amount of resources may be expressed in subframe units. In one embodiment, the resource allocation ratio may represent the ratio of the number of subframes allocated to the non-terrestrial network cells to the number of subframes allocated to the terrestrial network cells in the frequency band. The number of subframes allocated to the terrestrial network cells may represent the number of at least one subframe among the plurality of subframes constituting a single wireless frame in which a plurality of terrestrial network cells that can overlap with one non-terrestrial network cell are allowed to use the designated frequency band. The number of subframes allocated to the non-terrestrial network cells may represent the number of at least one subframe among the plurality of subframes constituting a single wireless frame in which the non-terrestrial network cell is allowed to use the designated frequency band.

[0201] In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) can determine one or more different resource allocation ratios for each day or time period.

[0202] In operation 1006, the resource allocation controller (910) (e.g., processor (912)) may determine a subframe allocation representing subframes that are available for use in the designated frequency band in each of the non-terrestrial cell and the terrestrial cell based on the resource allocation ratio. In one embodiment, the subframe allocation may include information indicating whether each of the plurality of subframes constituting a single wireless frame will be used for the non-terrestrial cell or for the terrestrial cell (e.g., a first subframe allocation for the non-terrestrial cell and / or a second subframe allocation for the terrestrial cell).

[0203] In one embodiment, when a wireless frame includes 10 subframes and the resource allocation ratio is 1:9, the first subframe allocation for non-terrestrial cells may indicate subframe 1, and the second subframe allocation for terrestrial cells may indicate subframes 0, 2, 3, 4, 5, 6, 7, 8, and 9. The first subframe allocation may mean that a satellite (e.g., satellite (704)) serving non-terrestrial cells is allowed to transmit a downlink signal through the designated frequency band in subframe 1. The second subframe allocation may mean that base stations (e.g., base station (702) or terrestrial base station (930)) serving terrestrial cells are allowed to transmit a downlink signal through the designated frequency band in subframes 0, 2, 3, 4, 5, 6, 7, 8, and 9. Based on the second subframe allocation above, base stations (e.g., base station (702) or terrestrial base station (930)) may not transmit or receive signals in subframe 1. In one embodiment, subframe 1 may be an MBSFN subframe (e.g., MBSFN subframe (510)) or a non-MBSFN subframe (e.g., a non-MBSFN subframe (520 or 530)).

[0204] In one embodiment, if the resource allocation controller (910) (e.g., processor (912)) shares a pre-agreed subframe allocation order with the satellite of the non-terrestrial cell and the base stations of the terrestrial cell, operation 1006 may be omitted. A detailed description of the subframe allocation order will be provided later.

[0205] In operation 1008, a resource allocation controller (910) (e.g., a processor (912)) may generate DSS setting information representing frequency resource allocation for each cell based on the resource allocation ratio and / or the subframe allocation. In one embodiment, the DSS setting information may include first DSS setting information representing frequency resource allocation for non-terrestrial cells and second DSS setting information representing frequency resource allocation for terrestrial cells. In one embodiment, the first DSS setting information may include the resource allocation ratio and / or information representing the first subframe allocation. In one embodiment, the second DSS setting information may include the resource allocation ratio and / or information representing the second subframe allocation. In one embodiment, the DSS setting information may represent one or more resource allocation ratios and / or one or more subframe allocations that differ by day of the week or time of day.

[0206] In operation 1010, the resource allocation controller (910) (e.g., processor (912)) can transmit the DSS setting information to non-terrestrial cells and terrestrial cells. In one embodiment, the resource allocation controller (910) (e.g., processor (912)) can transmit the first DSS setting information to a non-terrestrial cell (e.g., non-terrestrial base station (920)) through the core network of the non-terrestrial network (e.g., CN node (1518) in FIG. 15 or CN node (1622) in FIG. 16). The non-terrestrial base station (920) can control the satellite of the non-terrestrial cell to use the specified frequency band in a specified subframe based on the first DSS setting information. In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) can transmit second DSS setting information to terrestrial network cells (e.g., a terrestrial network base station (930)) through a core network of a terrestrial network (e.g., a CN node (1522) in FIG. 15 or a CN node (1622) in FIG. 16).

[0207] In one embodiment, since the designated frequency band in non-ground cells and ground cells is designated by the same ARFCN (absolute radio frequency channel number), the electronic device (101) can identify the designated frequency band using the ARFCN.

[0208] In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) may share a pre-agreed subframe allocation order with non-terrestrial cells (e.g., a non-terrestrial base station (920)) and terrestrial cells (e.g., a terrestrial base station (930)). In one embodiment, the subframe allocation order may represent a designated order of subframes available in the non-terrestrial cells. In one embodiment, the subframe allocation order may represent subframes 1, 3, 5, and 7. If the subframe allocation order is pre-agreed, the resource allocation controller (910) (e.g., a processor (912)) may transmit the resource allocation ratio, including the subframe allocation, to the non-terrestrial cells (e.g., a non-terrestrial base station (920)) and terrestrial cells (e.g., a terrestrial base station (930)) in the DSS configuration information without information regarding subframe allocation. In one embodiment, the resource allocation controller (910) (e.g., a processor (912)) may include the subframe allocation in the DSS configuration information Information about the order can be included.

[0209] In one embodiment, the first DSS setting information and the second DSS setting information may include the resource allocation ratio. When the resource allocation ratio indicates non-terrestrial network:terrestrial network = 1:9, the non-terrestrial network base station (920) may determine that the designated frequency band is available in subframe 1 according to the subframe allocation order, and the terrestrial network base station (930) may determine that the designated frequency band is not available in subframe 1 according to the subframe allocation order. When the resource allocation ratio indicates 2:8, the non-terrestrial network cell base station (920) may determine that the designated frequency band is available in subframes 1 and 3 according to the subframe allocation order, and the terrestrial network base station (930) may determine that the designated frequency band is not available in subframes 1 and 3 according to the subframe allocation order.

[0210] Various methods by which a resource allocation controller (910) (e.g., a processor (912)) determines a resource allocation ratio in embodiments of the present disclosure are described below.

[0211] In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) may obtain information regarding the predicted traffic load of non-ground network cells and each ground network cell for a specified time interval (e.g., a day of the week or a time period) and determine the resource allocation ratio in consideration of the predicted traffic load. For example, the resource allocation controller (910) (e.g., a processor (912)) may obtain information regarding the predicted traffic load of non-ground network cells and ground network cells from a non-ground network (e.g., the non-ground network (1510) of FIG. 15) and a ground network (e.g., the ground network (1520) of FIG. 15). Since the traffic load may vary by day of the week or time period and may also be affected by specific events (e.g., a festival or a sports event), the resource allocation controller (910) (e.g., a processor (912)) may set the resource allocation ratio according to a predetermined condition for ground network cells with large changes in traffic load. In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) may determine the resource allocation ratio by considering at least one of the traffic load ratio between a non-terrestrial network cell and a terrestrial network cell, service characteristics, or network characteristics.

[0212] In one embodiment, the resource allocation controller (910) (e.g., processor (912)) may decide to share a frequency band of 5 MHz bandwidth with terrestrial network cells at a resource allocation ratio of 10:0 or 9:1 for non-terrestrial network cells (e.g., non-terrestrial network cells (808, 810, or 812)) located in an area where there is very little or no traffic on the terrestrial network. In one embodiment, the resource allocation controller (910) (e.g., processor (912)) may decide to share a designated frequency band (e.g., 40 MHz bandwidth) with terrestrial network cells at a resource allocation ratio of 0:10 or 1:9 for non-terrestrial network cells (e.g., non-terrestrial network cells (802 or 804)) located in an area where there is very much traffic on the terrestrial network. In one embodiment, the resource allocation controller (910) (e.g., processor (912)) may decide to share a designated frequency band (e.g., 40 MHz bandwidth) with the terrestrial cells at a resource allocation ratio of 5:5 for non-terrestrial cells (e.g., non-terrestrial cells (806)) located in an area where there are relatively many terrestrial cells.

[0213] In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) may determine to share a frequency band of 20 MHz bandwidth between a non-terrestrial network and a terrestrial network, determine a resource allocation ratio of 0:10 or 1:9 for a non-terrestrial network cell (e.g., a non-terrestrial network cell (802)) located in an area where a very large number of terrestrial network cells are deployed, determine a resource allocation ratio of 5:5 for a non-terrestrial network cell (e.g., a non-terrestrial network cell (808)) located in an area where terrestrial network cells are sparsely deployed, and determine a resource allocation ratio of 10:0 for a non-terrestrial network cell (e.g., a non-terrestrial network cell (812)) located in an area where no terrestrial network cells exist. In a non-terrestrial network cell (808), an electronic device (e.g., an electronic device (101)) may use a communication service similar to one allocated a 10 MHz bandwidth according to the 5:5 resource allocation ratio.

[0214] In one embodiment, a resource allocation controller (910) (e.g., a processor (912)) may include one or more ground network cells that are at least partially overlappable with an earth-fixed non-ground network cell in a ground network cell list. In one embodiment, since some ground network cells may overlap with the areas of one or more non-ground network cells, the ground network cell may be commonly included in the ground network cell lists of one or more non-ground network cells. In one embodiment, the resource allocation controller (910) (e.g., a processor (912)) may determine a resource allocation ratio for a ground network cell that overlaps with one or more non-ground network cells through the procedure of FIG. 11.

[0215] FIG. 11 is a flowchart illustrating a procedure for determining the resource allocation ratio of a terrestrial network cell according to an embodiment of the present disclosure. According to embodiments, at least one of the operations described below may be omitted, modified, or executed in a different order. In one embodiment, at least one of the operations described below may be executed by a processor (e.g., processor (912) in FIG. 9b) of a network entity (e.g., resource allocation controller (910) in FIG. 9a). In one embodiment, a memory of the network entity (912) (e.g., memory (914) in FIG. 9b) may store instructions that cause the resource allocation controller (910) to operate according to at least one of the operations described below.

[0216] Referring to FIG. 11, in operation 1102, a resource allocation controller (910) (e.g., a processor (912)) can determine whether one ground network cell (e.g., a third ground network cell) is associated with two or more non-ground network cells (e.g., a first non-ground network cell and a second non-ground network cell). In one embodiment, if the third ground network cell is commonly included in two or more ground network cell lists (e.g., a first ground network cell list for a first non-ground network cell and a second ground network cell list for a second non-ground network cell), the resource allocation controller (910) (e.g., a processor (912)) can determine that the third ground network cell is associated with two or more non-ground network cells and proceed to operation 1104. If the third ground network cell is included in only one ground network cell list, the resource allocation controller (910) can terminate the procedure.

[0217] In operation 1104, the resource allocation controller (910) (e.g., processor (912)) can identify the higher resource allocation ratio among the resource allocation ratios (e.g., first resource allocation ratio and second resource allocation ratio) corresponding to each of the two or more non-ground network cells (e.g., first non-ground network cell and second non-ground network cell). In one embodiment, the resource allocation controller (910) (e.g., processor (912)) can identify the non-ground network cell that has been allocated more resources among the two or more non-ground network cells.

[0218] In operation 1106, the resource allocation controller (910) (e.g., processor (912)) can allocate the resources of the third terrestrial network cell (e.g., at least one subframe available for a specified frequency band) according to the resource allocation ratio of the identified non-terrestrial network cell.

[0219] In one embodiment, through the procedure of FIG. 11, a resource allocation controller (910) (e.g., processor (912)) may determine that a ground network cell (e.g., third ground network cell) that can overlap with one or more non-ground network cells (e.g., first non-ground network cell and second non-ground network cell) follows the resource allocation ratio of the non-ground network cell having a higher resource allocation ratio. In one embodiment, the third ground network cell may be commonly included in the first ground network cell list of the first non-ground network cell and the second ground network cell list of the second non-ground network cell. If the first resource allocation ratio of the first non-ground network cell is 1:9 and the second resource allocation ratio of the second non-ground network cell is 2:8, the resource allocation controller (910) (e.g., processor (912)) may determine the resource allocation ratio of the third ground network cell to be 2:8 according to the second resource allocation ratio of the second non-ground network cell. According to the resource allocation ratio determined above, the third terrestrial network cell may use the designated frequency band in eight subframes.

[0220] FIG. 12 is a drawing for explaining subframe allocation according to one embodiment of the present disclosure.

[0221] Referring to FIG. 12, a single wireless frame (1200) may include 10 subframes. Assuming the wireless frame (1200) is 10ms, each subframe may be 1ms. The wireless frame (1200) may be configured to correspond to a terrestrial network (e.g., an LTE communication network or an NR communication network). According to one embodiment, when the resource allocation ratio between non-terrestrial network cells and terrestrial network cells is 2:8, at least one subframe (1202) (e.g., subframes 1, 4) among the 10 subframes constituting the wireless frame (1200) may be allocated for use by the non-terrestrial network cell. At least one terrestrial network cell that can overlap with the non-terrestrial network cell may use the remaining subframes (e.g., subframes 0, 2, 3, 5, 6, 7, 8, 9) among the 10 subframes constituting the wireless frame (1200).

[0222] FIG. 13 is a drawing for illustrating an update of a DSS setting according to one embodiment of the present disclosure.

[0223] Referring to FIG. 13, the resource allocation controller (910) can determine the resource allocation ratio between non-ground network cells and ground network cells based on the predicted values ​​of the cell placement and traffic load of the non-ground network and ground network during initial configuration (e.g., initial configuration of a non-ground network). During actual operation of the network, the resource allocation controller (910) can receive cell placement change information (1302) related to the cell placement of the ground network and / or the cell placement of the non-ground network, and / or receive traffic load change information (1304) related to the traffic load of the ground network and / or the traffic load of the non-ground network. The cell placement change information (1302) may indicate the changed location, size, and / or shape of at least one ground network cell and / or the changed location, size, and shape of at least one non-ground network cell. The above traffic load change information (1304) may represent the predicted traffic load of at least one terrestrial network cell and / or the predicted traffic load of at least one non-terrestrial network cell.

[0224] In one embodiment, the resource allocation controller (910) can update the terrestrial network cell list for each non-terrestrial network cell by performing the procedure of FIG. 10 based on the cell placement change information (1302) and / or the traffic load change information (1304), and update the DSS setting information for the non-terrestrial network cell and the terrestrial network cell based on the updated terrestrial network cell list. In one embodiment, the resource allocation controller (910) can update the terrestrial network cell list based on the cell placement change information (1302), and update the DSS setting information based on the updated terrestrial network cell list and the traffic load change information (1304).

[0225] In one embodiment, the updated DSS setting information (1306) may be transmitted from the resource allocation controller (910) to non-ground network cells (e.g., non-ground network base station (920)) and / or ground network cells (e.g., ground network base station (930)).

[0226] In one embodiment, the resource allocation controller (910) can prevent interference between the non-ground network signal and the ground network signal at the subframe boundary by performing time synchronization between a satellite (e.g., satellite (704)) and base stations (e.g., ground network base station (930)) using a designated frequency band for spectrum sharing between non-ground network cells and ground network cells. The ground network base stations (e.g., ground network base station (930)) may be time synchronized, for example, based on a global navigation satellite system (GNSS). The satellites of the non-ground network cells (e.g., satellite (704)) may also perform position measurement and time synchronization based on GNSS.

[0227] FIG. 14 is a drawing for explaining time synchronization according to one embodiment of the present disclosure.

[0228] Referring to FIG. 14, in a non-ground network, non-ground network cells (1410) (e.g., non-ground network cells (802, 804, 806, 808, 810, 812)) can be operated as ground fixed cells. A satellite (e.g., satellite (704) of FIG. 7) serving the non-ground network cells (1410) can move from a first position (1402) to a second position (1404). Depending on the movement, the distance between the satellite (704) and the non-ground network cells (1410) may change, and as a result, the propagation delay between the satellite (704) and the non-ground network cells (1410) may change significantly.

[0229] For example, when the satellite (704) is at the first position (1402), the distance between the satellite (704) and the electronic device (e.g., electronic device (101)) in the non-ground network cell (1410) may be at most 650 km, and when the satellite (704) is at the second position (1404), the distance between the satellite (704) and the electronic device (e.g., electronic device (101)) in the non-ground network cell (1410) may be at least 500 km. The difference in propagation delay due to the change in distance may be at most 0.5 ms. Accordingly, the frame boundary of the non-ground network cell (1410) may not be synchronized with the frame boundary of the ground network cells that overlap with the non-ground network cell (1410).

[0230] In one embodiment, the electronic device (101) and the satellite (704) within the non-ground network cell (1410) include an algorithm that compensates for the Doppler effect caused by the movement of the satellite (704), but if the frame time sync between the non-ground network cell (1410) and the ground network cell is out of sync, some symbols of adjacent subframes may overlap, causing performance degradation in both the ground network and the non-ground network.

[0231] In one embodiment, the resource allocation controller (910) can adjust the time synchronization of subframes allocated to the non-ground cell (1410) by taking into account the distance between the satellite (704) and the electronic device (101) within the non-ground cell (e.g., non-ground cell (1410)). In one embodiment, the resource allocation controller (910) can include information (e.g., synchronization adjustment information) to be used for subframe synchronization between the non-ground cell (1410) and the ground cells according to the distance to the satellite (704) in the first DSS setting information provided to the non-ground base station (e.g., non-ground base station (920)) that controls the satellite (704) of the non-ground cell (1410). The above synchronization adjustment information may include information (e.g., timing offset and / or TA (time advance) information) that instructs the starting point of subframes assigned to non-terrestrial cells (1410) to be advanced or delayed by a specified adjustment value.

[0232] In one embodiment, the resource allocation controller (910) can accommodate the delay of the signal transmitted and received by the electronic device (101) communicating with the satellite (704) by determining that the two or more subframes are consecutive when two or more subframes are allocated to a non-terrestrial cell (1410). For example, when two subframes are consecutively set in a non-terrestrial cell (1410), the number of symbols that the satellite (704) can use consecutively increases, so the electronic device (101) can secure time to compensate for the time delay difference.

[0233] FIG. 15 shows an example of a system configuration supporting spectrum sharing control according to one embodiment of the present disclosure.

[0234] Referring to FIG. 15, the resource allocation controller (910) may be connected to a CN node (1518) of a non-ground network (1510) and a CN node (1522) of a ground network (1520). In one embodiment, depending on the system configuration, the resource allocation controller (910) may belong to the non-ground network (1510) or to the ground network (1520).

[0235] In one embodiment, the non-ground network (1510) may include a satellite (1512) (e.g., satellite (704)) that provides non-ground network communication services to an electronic device (1502) (e.g., electronic device (101)), a ground station (1514) that receives a signal from the satellite (1512) and transmits it to a non-ground network base station (1516), a non-ground network base station (1516) (e.g., non-ground network base station (920)) that is connected to the ground station (1514) and manages resource allocation for the satellite (1512), and a CN node (1518) (e.g., UPF (user plane function) and / or AMF (access and mobility function)) connected to the non-ground network base station (1516). In one embodiment, the ground network (1520) may include a base station (1524) (e.g., a ground network base station (930)) and a CN node (1522) (e.g., a UPF and / or an AMF) that provide ground network communication services to an electronic device (1502) (e.g., an electronic device (101)).

[0236] In one embodiment, the CN node (1522) may be connected to various service servers (e.g., an SMS (short messaging service) server (1504), an emergency service server (1506), and / or a data service server (1508)) and may provide SMS services, emergency services, or data services to the electronic device (1502) via a base station (1524). Although not illustrated, the CN node (1518) of a non-terrestrial network (1510) may be connected to various service servers (e.g., an SMS server (1504), an emergency service server (1506), and / or a data service server (1508)) directly or via at least one other network node (e.g., the CN node (1522)) and may provide SMS services, emergency services, or data services to the electronic device (1502) via a satellite (1512).

[0237] In one embodiment, the resource allocation controller (910) may collect information for spectrum sharing, for example, information on the traffic load of non-terrestrial network cells (e.g., non-terrestrial network cells (802, 804, 806, 808, 810, 812)) from the CN node (1518) of the non-terrestrial network (1510). In one embodiment, the resource allocation controller (910) may obtain information on the cell placement of non-terrestrial network cells from the system operator or the CN node (1518). In one embodiment, the resource allocation controller (910) may collect information for spectrum sharing, for example, information on the frequency distribution, number of users, and / or traffic load of terrestrial network cells (e.g., terrestrial network cells (822, 824, 826)) from the CN node (1522) of the terrestrial network (1520). In one embodiment, the resource allocation controller (910) can obtain information about the cell placement of ground network cells from a system operator or a CN node (1522).

[0238] In one embodiment, the resource allocation controller (910) determines a resource allocation ratio for non-terrestrial cells and terrestrial cells based on the cell placement and traffic load of non-terrestrial cells and terrestrial cells, and provides DSS setting information (e.g., resource allocation ratio, subframe allocation, and / or synchronization adjustment information) based on the resource allocation ratio to a non-terrestrial base station (1516), a satellite (1512), and a base station (1524), thereby enabling the satellite (1512) and the base station (1524) to share the same frequency band to provide non-terrestrial communication services and terrestrial communication services to an electronic device (1502). In one embodiment, the resource allocation controller (910) can transmit the DSS setting information to the satellite (1512) through at least one network node (e.g., CN node (1522), CN node (1518)), a base station (1516), and / or a ground station (1514)). In one embodiment, the resource allocation controller (910) can transmit the DSS setting information to the base station (1524) through at least one network node (e.g., CN node (1522)).

[0239] FIG. 16 shows an example of a system configuration supporting spectrum sharing control according to one embodiment of the present disclosure.

[0240] Referring to FIG. 16, the resource allocation controller (910) may be connected to a CN node (1622) (e.g., UPF and / or AMF) that is common to the non-ground network (1610) and the ground network (1620). In one embodiment, the non-ground network (1610) may include a satellite (1612) (e.g., satellite (704)) that provides non-ground network communication services to an electronic device (1602) (e.g., electronic device (101)), a ground station (1614) that receives a signal from the satellite (1612) and transmits it to a non-ground network base station (1616), and a non-ground network base station (1616) (e.g., non-ground network base station (920)) that is connected to the ground station (1614) and manages resource allocation for the satellite (1612). In one embodiment, the ground network (1620) may include a base station (1624) (e.g., a ground network base station (930)) that provides ground network communication services to an electronic device (1602) (e.g., an electronic device (101)).

[0241] In one embodiment, the CN node (1622) may be connected to various service servers (e.g., SMS server (1604), emergency service server (1606), and / or data service server (1608)) and may provide SMS services, emergency services, or data services to the electronic device (1602) via the base station (1624). Similarly, the CN node (1622) may provide SMS services, emergency services, or data services to the electronic device (1602) via the satellite (1612).

[0242] In one embodiment, the resource allocation controller (910) may collect information for spectrum sharing from the CN node (1622), for example, information regarding the frequency distribution, number of users, and / or traffic load of non-terrestrial cells (e.g., non-terrestrial cells (802, 804, 806, 808, 810, 812)) and terrestrial cells (e.g., terrestrial cells (822, 824, 826)). In one embodiment, the resource allocation controller (910) may obtain information regarding the cell placement of non-terrestrial cells and terrestrial cells from the system operator or the CN node (1622).

[0243] In one embodiment, the resource allocation controller (910) determines a resource allocation ratio for non-terrestrial cells and terrestrial cells based on the cell placement and traffic load of non-terrestrial cells and terrestrial cells, and provides DSS setting information (e.g., resource allocation ratio, subframe allocation, and / or synchronization adjustment information) based on the resource allocation ratio to the satellite (1612), non-terrestrial base station (1616), and base station (1624), thereby enabling the satellite (1612) and base station (1624) to share the same frequency band to provide non-terrestrial communication services and terrestrial communication services to the electronic device (1602).

[0244] The embodiments of the present disclosure can allocate frequency resources to non-terrestrial networks while minimizing the degradation of the frequency capacity of terrestrial networks, and can secure the frequency capacity and service performance of non-terrestrial networks.

[0245] A network entity (910) according to one embodiment of the present disclosure may include at least one processor (912) and a memory (914) for storing instructions. When the instructions are executed individually or collectively by the at least one processor, the network entity may obtain a list of terrestrial (TN) cells representing one or more terrestrial cells that are at least partially overlappable with a non-terrestrial network (NTN) cell. When the instructions are executed individually or collectively by the at least one processor, the network entity may determine a resource allocation ratio between the non-terrestrial cell and the terrestrial cells for sharing a designated frequency band based on the traffic load of the terrestrial cells. When the above instructions are executed individually or collectively by the at least one processor, the network entity may determine first configuration information indicating frequency resource allocation for the non-terrestrial network cell and second configuration information indicating frequency resource allocation for the terrestrial network cells based on the resource allocation ratio. When the above instructions are executed individually or collectively by the at least one processor, the network entity may transmit the first configuration information to a non-terrestrial network base station (920) controlling a satellite that services the non-terrestrial network cell. When the above instructions are executed individually or collectively by the at least one processor, the network entity may transmit the second configuration information to terrestrial network base stations (930) that service the terrestrial network cells.

[0246] In one embodiment, the instructions may cause the network entity to determine, based on the resource allocation ratio, a first subframe allocation representing one or more subframes in which the non-terrestrial network cell can use the frequency band, and a second subframe allocation representing one or more subframes in which the terrestrial network cell can use the frequency band, and to include information regarding the first subframe allocation in the first setting information and information regarding the second subframe allocation in the second setting information.

[0247] In one embodiment, the first setting information may include information indicating the resource allocation ratio and / or information indicating at least one subframe among a plurality of subframes constituting a wireless frame that is allowed to transmit a signal through the frequency band by the satellite serving the non-terrestrial cell.

[0248] In one embodiment, the at least one subframe may include at least one MBSFN (multimedia broadcast multicast service single frequency network) subframe (510).

[0249] In one embodiment, the at least one subframe may include two or more consecutive subframes to be used for subframe synchronization between the non-ground network cell and the ground network cells.

[0250] In one embodiment, the second setting information may include information indicating the resource allocation ratio and / or information indicating at least one subframe among a plurality of subframes constituting a wireless frame that allows the base station servicing the terrestrial network cells to transmit a signal through the frequency band.

[0251] In one embodiment, the instructions may cause the network entity to include synchronization coordination information to be used for subframe synchronization between the non-terrestrial network cell and the terrestrial network cells in the first setting information.

[0252] In one embodiment, the instructions may cause the network entity to obtain a first terrestrial network cell list corresponding to a first non-terrestrial network cell and including the first terrestrial network cells, and a second terrestrial network cell list corresponding to a second non-terrestrial network cell and including the second terrestrial network cells; identify a first resource allocation ratio of the first non-terrestrial network cell relative to the first terrestrial network cells and a second resource allocation ratio of the second non-terrestrial network cell relative to the second terrestrial network cells; identify a third terrestrial network cell that is commonly included in the first terrestrial network cell list and the second terrestrial network cell list; determine a resource allocation ratio for the third terrestrial network cell based on the higher value between the first resource allocation ratio and the second resource allocation ratio; generate third DSS setting information indicating frequency resource allocation for the third terrestrial network cell based on the determined resource allocation ratio; and transmit the third DSS setting information to a base station that services the third terrestrial network cell.

[0253] In one embodiment, the instructions may cause the network entity to receive cell placement change information indicating a changed cell placement of the terrestrial network cells and / or the non-terrestrial network cells, update the terrestrial network cell list related to the non-terrestrial network cells based on the cell placement change information, receive traffic load change information indicating a changed traffic load of the terrestrial network cells, update the resource allocation ratio based on the updated terrestrial network cell list and / or the traffic load change information, update the first configuration information and the second configuration information based on the updated resource allocation ratio, transmit the updated first configuration information to the non-terrestrial network base station, and transmit the updated second configuration information to the terrestrial network base stations.

[0254] In one embodiment, the instructions may cause the network entity to transmit the first configuration information to the non-terrestrial network base station through the core network (1518 or 1622) of the non-terrestrial network, and to transmit the second configuration information to the terrestrial network base stations through the core network (1522 or 1622) of the terrestrial network.

[0255] A method performed by a network entity (910) according to one embodiment of the present disclosure may include an operation (1002) of obtaining a list of terrestrial (TN) cells representing one or more terrestrial cells that may overlap at least partially with a non-terrestrial network (NTN) cell. The method may include an operation (1004) of determining a resource allocation ratio between the non-terrestrial cell and the terrestrial cells for sharing a designated frequency band based on the traffic load of the terrestrial cells. The method may include an operation (1008) of determining a first setting information representing frequency resource allocation for the non-terrestrial cell and a second setting information representing frequency resource allocation for the terrestrial cells based on the resource allocation ratio. The method may include an operation (1010) of transmitting the first setting information to a satellite that services the non-terrestrial cell. The method may include an operation (1010) of transmitting the second setting information to base stations that service the terrestrial cells.

[0256] In one embodiment, the method may further include the operation of determining, based on the resource allocation ratio, a first subframe allocation representing one or more subframes for which the non-terrestrial network cell can use the frequency band, and a second subframe allocation representing one or more subframes for which the terrestrial network cell can use the frequency band, and the operation of including information regarding the first subframe allocation in the first setting information and including information regarding the second subframe allocation in the second setting information.

[0257] In one embodiment, the first setting information may include information indicating the resource allocation ratio and / or information indicating at least one subframe among a plurality of subframes constituting a wireless frame that is allowed to use the frequency band by the satellite servicing the non-terrestrial cell.

[0258] In one embodiment, the at least one subframe may include at least one MBSFN (multimedia broadcast multicast service single frequency network) subframe (510).

[0259] In one embodiment, the at least one subframe may include two or more consecutive subframes to be used for subframe synchronization between the non-ground network cell and the ground network cells.

[0260] In one embodiment, the second setting information may include information indicating the resource allocation ratio and / or information indicating at least one subframe among a plurality of subframes constituting a wireless frame in which the base station servicing the terrestrial network cells is allowed to use the frequency band.

[0261] In one embodiment, the method may further include the operation of including synchronization adjustment information to be used for subframe synchronization between the non-ground network cell and the ground network cells in the first setting information.

[0262] In one embodiment, the method may further include the operation of obtaining a first terrestrial network cell list corresponding to a first non-terrestrial network cell and including first terrestrial network cells, and a second terrestrial network cell list corresponding to a second non-terrestrial network cell and including second terrestrial network cells; the operation of identifying a first resource allocation ratio of the first non-terrestrial network cell relative to the first terrestrial network cells and a second resource allocation ratio of the second non-terrestrial network cell relative to the second terrestrial network cells; the operation of identifying a third terrestrial network cell that is commonly included in the first terrestrial network cell list and the second terrestrial network cell list; the operation of determining a resource allocation ratio for the third terrestrial network cell based on the higher value between the first resource allocation ratio and the second resource allocation ratio; the operation of generating third DSS setting information indicating frequency resource allocation for the third terrestrial network cell based on the determined resource allocation ratio; and the operation of transmitting the third DSS setting information to a base station that services the third terrestrial network cell.

[0263] In one embodiment, the method may further include: receiving cell placement change information indicating a changed cell placement of the terrestrial network cells; receiving traffic load change information indicating a changed traffic load of the terrestrial network cells; updating the resource allocation ratio based on the cell placement change information and / or the traffic load change information; updating the first setting information and the second setting information based on the updated resource allocation ratio; transmitting the updated first setting information to the satellite servicing the non-terrestrial network cells; and transmitting the updated second setting information to the base stations servicing the terrestrial network cells.

[0264] In one embodiment, the first setting information may be transmitted to the satellite through a core network (1518 or 1622) of a non-terrestrial network, and the second setting information may be transmitted to the base stations through a core network (1522 or 1622) of a terrestrial network.

[0265] In a non-transient computer-readable storage medium storing one or more programs according to one embodiment of the present disclosure, the one or more programs may include instructions that, when executed individually or collectively by at least one processor, cause a network entity to: obtain a list of terrestrial (TN) cells representing one or more terrestrial cells that may partially overlap with a non-terrestrial (NTN) cell; determine a resource allocation ratio between the non-terrestrial cell and the terrestrial cells for sharing a designated frequency band based on the traffic load of the terrestrial cells; determine a first configuration information representing a frequency resource allocation for the non-terrestrial cell and a second configuration information representing a frequency resource allocation for the terrestrial cells based on the resource allocation ratio; transmit the first configuration information to a satellite serving the non-terrestrial cell; and transmit the second configuration information to base stations serving the terrestrial cells.

[0266] The electronic device according to the various 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.

[0267] The various 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" may each 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.

[0268] The term “module” as used in the various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, 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).

[0269] Various embodiments 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.

[0270] According to one embodiment, the method according to the various 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 an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) 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.

[0271] According to various embodiments, 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 various embodiments, 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 multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to various embodiments, 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 the network object (910), At least one processor (912); and It includes a memory (914) for storing instructions, and when the instructions are executed individually or collectively by the at least one processor, the network object, Obtain a list of terrestrial network (TN) cells representing one or more terrestrial network cells that can overlap at least partially with non-terrestrial network (NTN) cells, and Based on the traffic load of the above-mentioned terrestrial network cells, a resource allocation ratio between the above-mentioned non-terrestrial network cells and the above-mentioned terrestrial network cells for sharing a designated frequency band is determined, and Based on the above resource allocation ratio, a first setting information indicating frequency resource allocation for the above non-terrestrial network cell and a second setting information indicating frequency resource allocation for the above terrestrial network cell are determined, and The above first setting information is transmitted to a non-ground base station (920) that controls a satellite servicing the above non-ground cell, and A network entity that transmits the above second setting information to ground network base stations (930) that service the ground network cells.

2. In claim 1, the instructions cause the network entity, Based on the above resource allocation ratio, the above non-terrestrial network cell determines a first subframe allocation representing one or more subframes in which the frequency band is available, and the above terrestrial network cell determines a second subframe allocation representing one or more subframes in which the frequency band is available. A network object that includes information regarding the first subframe allocation in the first setting information and includes information regarding the second subframe allocation in the second setting information.

3. In claim 1 or 2, the first setting information is, A network entity comprising information including information indicating the resource allocation ratio and / or information indicating at least one subframe among a plurality of subframes constituting a wireless frame that is allowed to transmit a signal through the frequency band by the satellite serving the non-terrestrial network cell.

4. In claim 3, the at least one subframe is, A network object comprising at least one MBSFN (multimedia broadcast multicast service single frequency network) subframe (510).

5. In claim 3 or 4, the at least one subframe is, A network entity comprising two or more consecutive subframes to be used for subframe synchronization between the above-mentioned non-terrestrial network cell and the above-mentioned terrestrial network cell.

6. In claim 1 or 2, the second setting information is, A network entity comprising information indicating the resource allocation ratio and / or information indicating at least one subframe among a plurality of subframes constituting a wireless frame, wherein the terrestrial network base station servicing the terrestrial network cells is allowed to transmit a signal through the frequency band.

7. In any one of claims 1 to 6, the instructions cause the network entity, A network object that includes synchronization coordination information to be used for subframe synchronization between the above-mentioned non-terrestrial network cell and the above-mentioned terrestrial network cell in the above-mentioned first setting information.

8. In any one of claims 1 to 7, the instructions cause the network entity, Obtaining a first terrestrial network cell list corresponding to a first non-terrestrial network cell and including the first terrestrial network cells, and a second terrestrial network cell list corresponding to a second non-terrestrial network cell and including the second terrestrial network cells, and Identifying the first resource allocation ratio of the first non-terrestrial network cell relative to the first terrestrial network cells and the second resource allocation ratio of the second non-terrestrial network cell relative to the second terrestrial network cells, and Identifying a third terrestrial network cell that is commonly included in the first terrestrial network cell list and the second terrestrial network cell list, and Based on the higher value between the first resource allocation ratio and the second resource allocation ratio, a resource allocation ratio for the third terrestrial network cell is determined, and Based on the resource allocation ratio determined above, third DSS setting information representing frequency resource allocation for the third terrestrial network cell is generated, and A network entity that transmits the above-mentioned third DSS setting information to a base station servicing the above-mentioned third terrestrial network cell.

9. In any one of claims 1 to 8, the instructions cause the network entity, Receiving cell placement change information indicating a changed cell placement of the above terrestrial network cells and / or the above non-terrestrial network cells, and Based on the cell placement change information above, update the list of terrestrial cells related to the above non-terrestrial cells, and Receive traffic load change information indicating the changed traffic load of the above terrestrial network cells, and Update the resource allocation ratio based on the above-mentioned updated terrestrial network cell list and / or the above-mentioned traffic load change information, and Based on the above-mentioned updated resource allocation ratio, the above-mentioned first setting information and the above-mentioned second setting information are updated, and The above-mentioned updated first configuration information is transmitted to the above-mentioned non-terrestrial base station, and A network object that transmits the above-mentioned updated second configuration information to the above-mentioned ground network base stations.

10. In any one of claims 1 to 9, the instructions cause the network entity, The first configuration information is transmitted to the non-terrestrial base station through the core network (1518 or 1622) of the non-terrestrial network, and A network entity that transmits the second configuration information to the terrestrial network base stations through the core network (1522 or 1622) of the terrestrial network.

11. In a method performed by a network object (910), Operation (1002) of obtaining a list of terrestrial network (TN) cells representing one or more terrestrial network cells that can overlap at least partially with non-terrestrial network (NTN) cells; An operation (1004) to determine a resource allocation ratio between the non-terrestrial cell and the terrestrial cell for sharing a designated frequency band based on the traffic load of the terrestrial cell; An operation (1008) to determine first setting information indicating frequency resource allocation for the non-terrestrial network cell and second setting information indicating frequency resource allocation for the terrestrial network cells based on the above resource allocation ratio; The operation (1010) of transmitting the above first setting information to a non-ground base station (920) that controls a satellite servicing the above non-ground cell; and A method including the operation (1010) of transmitting the above second setting information to ground network base stations (930) that service the ground network cells.

12. In Paragraph 11, An operation to determine, based on the above resource allocation ratio, a first subframe allocation in which the non-terrestrial network cell represents one or more subframes in which the frequency band is available, and a second subframe allocation in which the terrestrial network cells represent one or more subframes in which the frequency band is available; and A method further comprising the operation of including information regarding the first subframe allocation in the first setting information and including information regarding the second subframe allocation in the second setting information.

13. In claim 11 or 12, the first setting information is, A method comprising information including information indicating the resource allocation ratio and / or information indicating at least one subframe among a plurality of subframes constituting a wireless frame that is allowed to transmit a signal through the frequency band by the satellite serving the non-terrestrial cell.

14. In claim 13, the at least one subframe is, At least one MBSFN (multimedia broadcast multicast service single frequency network) subframe (510), or A method comprising two or more consecutive subframes to be used for subframe synchronization between the above-mentioned non-terrestrial network cells and the above-mentioned terrestrial network cells.

15. In claim 11 or 12, the second setting information is, A method comprising information indicating the resource allocation ratio and / or information indicating at least one subframe among a plurality of subframes constituting a wireless frame, wherein the terrestrial network base station serving the terrestrial network cells is allowed to transmit a signal through the frequency band.

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