Electronic device and method for performing measurement reporting in wireless communication system

Abstract

A method performed by a user equipment in a wireless communication system, according to an embodiment of the present disclosure, comprises the steps of: receiving, from a base station, configuration information related to survivor reporting in an emergency situation, the configuration information including at least one of information regarding a location measurement method of the user equipment and information regarding a survivor identification method used for survivor identification for determining that a user of the user equipment is in the emergency situation; on the basis of the information regarding the survivor identification method, determining the survivor identification method used for the survivor identification; performing the survivor identification on the basis of the determined survivor identification method; and on the basis of the survivor identification, transmitting a measurement report including the survivor reporting to the base station, wherein the survivor reporting may include at least one of the information regarding the survivor identification method used by the user equipment and information regarding the location of the user equipment measured on the basis of a location measurement method determined on the basis of the information regarding the location measurement method of the user equipment.

Description

Electronic device and method for performing measurement reporting in a wireless communication system

[0001] The present disclosure relates to an electronic device and method for performing measurement reporting in a wireless communication network, and more particularly, to an electronic device and method for measurement reporting related to rescue of survivors in an emergency disaster situation.

[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 the sub-6GHz frequency band such as 3.5 gigahertz (3.5GHz), but also in the ultra-high frequency band called millimeter wave (mmWave) such as 28GHz and 39GHz ('Above 6GHz'). In addition, for 6G mobile communication technology, which is called the system after 5G communication (Beyond 5G), implementation in the terahertz (THz) band (for example, 3 THz band at 95GHz) is being considered to achieve a transmission speed that is 50 times faster than 5G mobile communication technology and an ultra-low latency time that is reduced to one-tenth.

[0003] In the early stages of 5G mobile communication technology, the goal is to support services and satisfy performance requirements for enhanced Mobile Broadband (eMBB), Ultra-Reliable Low-Latency Communications (URLLC), and massive Machine-Type Communications (mMTC). These include beamforming and massive MIMO to mitigate path loss of radio waves in ultra-high frequency bands and increase the transmission distance of radio waves, support for various numerologies (such as operation of multiple subcarrier intervals) and dynamic operation of slot formats for efficient use of ultra-high frequency resources, initial access technology to support multi-beam transmission and wideband, definition and operation of BWP (Bidth Part), new channel coding methods such as LDPC (Low Density Parity Check) codes for large-capacity data transmission and Polar Code for reliable transmission of control information, and L2 pre-processing (L2). Standardization has been made for network slicing, which provides dedicated networks specialized for specific services, and pre-processing.

[0004] Currently, discussions are underway to improve and enhance the initial 5G mobile communication technology in consideration of the services that 5G mobile communication technology was intended to support, and physical layer standardization is in progress for technologies such as V2X (Vehicle-to-Everything) to help autonomous vehicles make driving decisions and increase user convenience based on their own location and status information transmitted by vehicles, NR-U (New Radio Unlicensed) for the purpose of system operation that complies with various regulatory requirements in unlicensed bands, NR terminal low power consumption technology (UE Power Saving), Non-Terrestrial Network (NTN), which is direct terminal-satellite communication to secure coverage in areas where communication with terrestrial networks is impossible, and Positioning.

[0005] In addition, standardization of wireless interface architecture / protocols is in progress for technologies such as intelligent factories (Industrial Internet of Things, IIoT) to support new services through linkage and convergence with other industries, Integrated Access and Backhaul (IAB) that provides nodes for expanding network service areas by integrating wireless backhaul links and access links, Mobility Enhancement technology including Conditional Handover and Dual Active Protocol Stack (DAPS) handover, and 2-step random access (2-step RACH for NR) that simplifies random access procedures. Standardization is also in progress for system architecture / services such as 5G baseline architecture (e.g., Service-based Architecture, Service-based Interface) for grafting Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technologies, and Mobile Edge Computing (MEC) that provides services based on the location of the terminal.

[0006] Once these 5G mobile communication systems are commercialized, an explosive increase in connected devices will be connected to the communication network, necessitating enhanced functionality and performance of 5G mobile communication systems and integrated operation of these connected devices. To this end, new research will be conducted on improving 5G performance and reducing complexity, supporting AI services, supporting metaverse services, and drone communications by utilizing eXtended Reality (XR), Artificial Intelligence (AI), and Machine Learning (ML) to efficiently support Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR).

[0007] In addition, the development of these 5G mobile communication systems includes new waveforms to ensure coverage in the terahertz band of 6G mobile communication technology, multi-antenna transmission technologies such as Full Dimensional MIMO (FD-MIMO), Array Antenna, and Large Scale Antenna, metamaterial-based lenses and antennas to improve the coverage of terahertz band signals, high-dimensional spatial multiplexing technology using Orbital Angular Momentum (OAM), Reconfigurable Intelligent Surface (RIS) technology, as well as full duplex technology to improve the frequency efficiency and system network of 6G mobile communication technology, satellite, AI (Artificial Intelligence) from the design stage and AI-based communication technology that realizes system optimization by internalizing end-to-end AI support functions, and ultra-high-performance communication and computing resources to provide services with complexity that exceeds the limits of terminal computing capabilities. It can serve as a basis for the development of next-generation distributed computing technologies that can be realized by utilizing them.

[0008] According to one embodiment of the present disclosure, a terminal can perform survivor reporting in an emergency disaster situation.

[0009] According to one embodiment of the present disclosure, a terminal can report its location in an emergency disaster situation.

[0010] According to one embodiment of the present disclosure, even if a terminal cannot perform a survivor report in an emergency disaster situation, the base station can determine the approximate location of the terminal and transmit it to a disaster management server.

[0011] The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by a person having ordinary skill in the technical field to which the present disclosure belongs from the description below.

[0012] In accordance with one embodiment of the present disclosure, a method performed by a user equipment (UE) in a wireless communication system comprises the steps of: receiving, from a base station, configuration information related to survivor reporting in an emergency situation, wherein the configuration information includes at least one of information on a location measurement method of the UE or information on a survivor identification method used for survivor identification to determine that a user of the UE is in the emergency situation; determining, based on the information on the survivor identification method, the survivor identification method used for the survivor identification; performing, based on the determined survivor identification method, the survivor identification; and transmitting, to the base station, a measurement result report including the survivor report based on the survivor identification, wherein the survivor report may include at least one of information on a location of the UE measured based on a location measurement method determined based on information on the survivor identification method used by the UE or information on the location measurement method of the UE.

[0013] In accordance with one embodiment of the present disclosure, a method performed by a base station in a wireless communication system comprises the steps of: transmitting, to a user equipment, configuration information related to survivor reporting in an emergency situation, the configuration information including at least one of information on a location measurement method of the user equipment or information on a survivor identification method used to identify a survivor for determining that a user of the user equipment is in the emergency situation; and receiving, from the user equipment, a measurement result report including the survivor report based on the survivor identification, wherein the survivor report may include at least one of information on the survivor identification method used by the user equipment determined based on the information on the survivor identification method or information on a location of the user equipment measured based on a location measurement method determined based on the information on the location measurement method of the user equipment.

[0014] In a method performed by a server in a wireless communication system according to one embodiment of the present disclosure, the method comprises: determining, based on machine learning-based learning, at least one of a reporting period of survivor reporting performed by at least one terminal in an emergency situation or a survivor identification method to be used by the at least one terminal to identify a survivor for determining that a user of the at least one terminal is in the emergency situation; transmitting, to a Mobility Management Entity (MME), a service registration message related to the survivor reporting of the at least one terminal, the service registration message including at least one of information on the reporting period, information on the survivor identification method, or information on the location measurement method of the at least one terminal, which are determined based on the machine learning-based learning; And a step of receiving, from the MME, a service report message including a survivor report of each of the at least one terminal based on the service registration message, wherein the survivor report of each of the at least one terminal may include at least one of information about the reporting period, information about the survivor identification method used by each of the at least one terminal determined based on information about the survivor identification method, or information about the location of each of the at least one terminal measured based on a location measurement method determined based on information about the location measurement method.

[0015] In accordance with one embodiment of the present disclosure, a method performed by an unmanned aerial vehicle (UAV) in a wireless communication system comprises the steps of: identifying whether a connection between a base station and a user equipment (UE) has been released; establishing a connection with the UE when the connection between the base station and the UE has been identified as being released; transmitting, to the UE, configuration information related to survivor reporting in an emergency situation, the configuration information including at least one of information on a location measurement method of the UE or information on a survivor identification method used to identify a survivor who determines that a user of the UE is in the emergency situation; and receiving, from the UE, a measurement result report including the survivor report based on the survivor identification, wherein the survivor report may include at least one of information on the survivor identification method used by the UE determined based on the information on the survivor identification method or information on a location of the UE measured based on a location measurement method determined based on the information on the location measurement method of the UE.

[0016] In one embodiment of the present disclosure, a terminal of a wireless communication system comprises: a transceiver configured to transmit and receive signals; and at least one processor connected to the transceiver, wherein the at least one processor is configured to perform: receiving configuration information related to survivor reporting in an emergency situation, the configuration information including at least one of information on a location measurement method of the terminal or information on a survivor identification method used for survivor identification that determines that a user of the terminal is in the emergency situation; determining, based on the information on the survivor identification method, the survivor identification method used for survivor identification; performing, based on the determined survivor identification method, the survivor identification; and transmitting, based on the survivor identification, a measurement result report including the survivor report, wherein the survivor report may include at least one of information on a location of the terminal measured based on a location measurement method determined based on information on the survivor identification method used by the terminal or information on the location measurement method of the terminal.

[0017] In one embodiment of the present disclosure, a base station of a wireless communication system comprises: a transceiver configured to transmit and receive signals; and at least one processor connected to the transceiver, wherein the at least one processor is configured to perform: a step of transmitting, to a user equipment, configuration information related to survivor reporting in an emergency situation, the configuration information including at least one of information on a location measurement method of the user equipment or information on a survivor identification method used to identify a survivor who determines that a user of the user equipment is in the emergency situation; and a step of transmitting, from the user equipment, a measurement result report including the survivor report based on the survivor identification, wherein the survivor report may include at least one of information on the survivor identification method used by the user equipment determined based on the information on the survivor identification method or information on a location of the user equipment measured based on a location measurement method determined based on the information on the location measurement method of the user equipment.

[0018] In one embodiment, in an emergency disaster situation, rescuers can efficiently identify the locations of survivors based on survivor reports from terminals.

[0019] In one embodiment, in an emergency disaster situation, a rescuer can rescue a survivor who is a user of a terminal that is unable to transmit a survivor report to a base station.

[0020] In addition, various effects may be provided, either directly or indirectly, through this document.

[0021] FIG. 1 illustrates an example of a system configuration for a survivor rescue service in an emergency disaster situation according to one embodiment of the present disclosure.

[0022] FIG. 2 is a flowchart showing an example of an operation performed for a survivor rescue service in an emergency disaster situation according to one embodiment of the present disclosure.

[0023] FIG. 3 is a flowchart illustrating another example of an operation performed for a survivor rescue service in an emergency disaster situation according to one embodiment of the present disclosure.

[0024] FIG. 4 is a diagram showing another example of how a survivor reporting method according to one embodiment of the present disclosure is performed.

[0025] FIG. 5 is a diagram showing another example of how a survivor reporting method according to one embodiment of the present disclosure is performed.

[0026] FIG. 6 is a diagram showing an example of an AI server configuration according to one embodiment of the present disclosure.

[0027] FIG. 7 is a flowchart illustrating a method of collecting selection algorithm inputs for determining a survivor identification method by an AI server according to one embodiment of the present disclosure.

[0028] FIG. 8 is a diagram illustrating an example of a terminal AI client configuration that performs survivor identification according to one embodiment of the present disclosure.

[0029] FIG. 9 is a diagram for explaining a method for reporting survivors of a terminal according to one embodiment of the present disclosure.

[0030] FIG. 10 is a diagram for explaining a method for reporting survivors at a base station according to one embodiment of the present disclosure.

[0031] FIG. 11 is a diagram for explaining a method for reporting survivors by an AI server according to one embodiment of the present disclosure.

[0032] FIG. 12 is a diagram for explaining a method for reporting survivors of a UAV according to one embodiment of the present disclosure.

[0033] FIG. 13 is a diagram illustrating the structure of a base station according to one embodiment of the present disclosure.

[0034] FIG. 14 is a diagram illustrating the structure of a terminal according to one embodiment of the present disclosure.

[0035] Hereinafter, various embodiments of the present invention will be described with reference to the attached drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that the present invention encompasses various modifications, equivalents, and / or alternatives of the embodiments.

[0036] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the attached drawings. In describing the embodiments, descriptions of technical details that are well-known in the technical field to which the present disclosure pertains and are not directly related to the present disclosure will be omitted. This is to avoid obscuring the gist of the present disclosure by omitting unnecessary explanations and to convey the gist more clearly.

[0037] For the same reason, some components in the attached drawings are exaggerated, omitted, or schematically depicted. Furthermore, the dimensions of each component do not entirely reflect its actual size. Identical or corresponding components in each drawing are assigned the same reference numbers.

[0038] The advantages and features of the present disclosure, and methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided solely to ensure that the disclosure of the present disclosure is complete and to fully inform those skilled in the art of the scope of the invention, and the present disclosure is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0039] At this time, it will be understood that each block of the processing flowchart drawings and combinations of the flowchart drawings can be performed by computer program instructions. These computer program instructions can be installed in a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing equipment, so that the instructions executed by the processor of the computer or other programmable data processing equipment create a means for performing the functions described in the flowchart block(s). These computer program instructions can also be stored in a computer-available or computer-readable memory that can direct a computer or other programmable data processing equipment to implement the functions in a specific manner, so that the instructions stored in the computer-available or computer-readable memory can also produce a manufactured item that includes an instruction means for performing the functions described in the flowchart block(s). Since the computer program instructions may be installed on a computer or other programmable data processing device, a series of operational steps may be performed on the computer or other programmable data processing device to create a computer-executable process, and the instructions that cause the computer or other programmable data processing device to perform the steps for performing the functions described in the flowchart block(s) may also provide steps for performing the functions described in the flowchart block(s).

[0040] Additionally, each block may represent a module, segment, or portion of code that contains one or more executable instructions for performing a specific logical function(s). It should also be noted that in some alternative implementation examples, the functions described in the blocks may occur out of order. For example, two blocks depicted in succession may actually be executed substantially concurrently, or the blocks may sometimes be executed in reverse order, depending on their respective functions.

[0041] Here, the term '~ part' used in this embodiment means software or hardware components such as FPGA (Field Programmable Gate Array) or ASIC (Application Specific Integrated Circuit), and the '~ part' performs certain roles. However, the '~ part' is not limited to software or hardware. The '~ part' may be configured to be on an addressable storage medium or may be configured to play one or more processors. Therefore, as an example, the '~ part' includes components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functions provided within the components and '~ parts' may be combined into a smaller number of components and '~ parts' or further separated into additional components and '~ parts'. Additionally, the components and '~parts' may be implemented to activate one or more CPUs within a device or secure multimedia card. In addition, in an embodiment, the '~parts' may include one or more processors.

[0042] The terms used in the following description to identify connection nodes, terms referring to network entities, terms referring to messages, terms referring to interfaces between network entities, and terms referring to various identification information are provided as examples for convenience of explanation. Therefore, the present disclosure is not limited to the terms described below, and other terms referring to objects with equivalent technical meanings may be used.

[0043] For convenience of explanation, this disclosure uses terms and names defined in the 3rd Generation Partnership Project Long Term Evolution (3GPP) LTE standard. However, the present invention is not limited to the above terms and names, and can be equally applied to systems conforming to other standards. In this disclosure, the term "base station" may be used interchangeably with "eNB" and "gNB" for convenience of explanation. That is, a base station described as an eNB may represent a gNB. In this disclosure, the term "terminal" may refer to various wireless communication devices, including mobile phones, NB-IoT devices, and sensors.

[0044] <Information related to the present invention>

[0045] Definition of terms

[0046] In this disclosure, the following terms / abbreviations may be used for convenience of explanation.

[0047] UE: User Equipment

[0048] RAN: Radio Access Network

[0049] AP: Access Point

[0050] CBE: cell broadcast entities

[0051] CBC: cell broadcast center

[0052] CRBS: Citizens Broadband Radio Service

[0053] IE: Information element

[0054] MME: Mobility management entity

[0055] AI: Artificial intelligence

[0056] ML: Machine learning

[0057] UAV: Unmanned aerial vehicle

[0058] API: Application Programming Interface

[0059] NE: Network entity

[0060] SINR : Signal to Interference plus Noise Ratio

[0061] The present disclosure relates to a signaling method for rescuing people in an emergency disaster situation or a critical situation due to a natural disaster. In general, systems such as the Public Warning System (PWS) and the Earthquake and Tsunami Warning System (ETWS), which are used to warn of an emergency disaster situation or a critical situation due to a natural disaster, can be configured in the form of a one-way warning (or broadcasting) service to notify the public of the occurrence of an emergency disaster situation or a critical situation and to enable them to find a safe place or shelter. In particular, systems such as the Public Warning System (PWS) and the Earthquake and Tsunami Warning System (ETWS) only support functions that assume one-way communication to transmit warning messages to the terminals of people in emergency or critical situations so that they can evacuate to a safe place. Therefore, functions that assume two-way communication to directly assist in the search for people in emergency or critical situations are not supported. Therefore, in order to more effectively identify and rescue people in emergency or critical situations caused by natural disasters, there is a need for a method that supports functions that assume one-way communication to transmit warning messages to the terminals of people in emergency or critical situations so that they can evacuate to a safe place.In addition, there is a need for a method in which terminals directly support functions so that people in emergency situations or critical situations can directly request rescue from rescuers (or so that terminals used by people in emergency situations or critical situations can directly request rescue from a rescue system). Hereinafter, for convenience of explanation, people in emergency situations or critical situations (or terminals used by people in emergency situations or critical situations) may be referred to as survivors, and may be referred to in various modified forms within a range that is substantially the same as or can be interpreted similarly to this.

[0062] First, an example of an overall system configuration for a survivor rescue service in an emergency disaster situation according to one embodiment of the present disclosure is described with reference to FIG. 1.

[0063] FIG. 1 illustrates an example of a system configuration for a survivor rescue service in an emergency disaster situation according to one embodiment of the present disclosure.

[0064] Referring to FIG. 1, a system for a survivor rescue service in an emergency disaster situation may include a survivor's terminal (101), an AI server (103) that manages the survivor rescue service as a whole and stores / manages information transmitted from the survivor's terminal (101), APs (105, 106) that can communicate with the terminal (101), and a flying object (107) that can replace the role of the APs (105, 106) when the APs (105, 106) are unable to communicate with the terminal (101). At this time, the terminal (101) may include an AI client that performs operations necessary for performing a survivor report, and the flying object (107) may be any flying device in the form of an unmanned aerial vehicle (UAV) that can be used to replace the role of the APs (105, 106), and an example of an unmanned aerial vehicle (UAV) may be a drone.

[0065] In FIG. 1, when an emergency disaster situation is triggered, the AI ​​server (103) detects the occurrence of the emergency disaster situation (110) and instructs all target terminals located in an area where the emergency disaster situation is determined to have occurred to perform a survivor report through a specific form of paging or broadcasting (115). At this time, the paging or broadcasting performed by the AI ​​server (103) may be transmitted to the terminal (101) via APs (105, 106). Here, the paging or broadcasting may include information regarding the settings required for the terminal (101) to perform a survivor report, and the survivor report may be a report including information required for a survivor who is a user of the terminal (101) to be rescued. The configuration information required for the terminal (101) to perform a survivor report and the information included in the survivor report will be described in more detail below.

[0066] Thereafter, the terminal (101) that receives paging or broadcasting from the AP (105 or 106) performs an operation to detect the movement of a survivor who is a user of the terminal (101), and reports a survivor report including information about the location of the terminal (101) along with the result of the motion detection to the AP (105 or 106). The AP (105 or 106) that receives the survivor report from the terminal (101) can transmit it to the AI ​​server (103) (120). The AI ​​server (103) manages the survivor report received from the AP (105 or 106) and can utilize it for rescuing survivors in an emergency disaster situation.

[0067] In addition, when the terminal (101) is unable to communicate with the AP (105 or 106), the flying object (107) can perform operations 115 and 120 described above on behalf of the AP (105 or 106), and operations 115 and 120 of FIG. 1 can be replaced by operations 125 and 130 of FIG. 1 by the flying object (107). In particular, in the case of operation 125, the flying object (107) moves to an area managed by the AP (105 or 106), and then requests the AI ​​server (103) to register itself as a subject of the survivor rescue service, and can receive permission from the AI ​​server (103) to communicate with terminals located in the area managed by the AP (105 or 106).

[0068] In Fig. 1, for convenience of explanation, the operation performed by one terminal (101) with APs (105 and 106), a flying object (107), and an AI server (103) is described, but it is of course possible that the operation described in Fig. 1 may be performed by the terminals of one or more survivors in an emergency disaster situation.

[0069] Hereinafter, an example of the overall signal flow for performing a survivor rescue service in an emergency disaster situation according to one embodiment of the present disclosure is described with reference to FIG. 2.

[0070] FIG. 2 is a flowchart showing an example of an operation performed for a survivor rescue service in an emergency disaster situation according to one embodiment of the present disclosure.

[0071] Referring to FIG. 2, in the PWS or ETWS described above, the CBE / CBC can generally trigger a one-way warning transmission to the survivor's terminal (201) in an emergency disaster situation, but the CBE / CBC does not consider what action the terminal (201) that received the warning will perform after receiving the warning. In particular, in the case of PWS or ETWS, it is assumed that the survivor, who is the user of the terminal (201) that received the warning, will find a safe place to escape from the emergency disaster situation, without considering what action the terminal (201) that received the warning will perform after receiving the warning. Unlike in PWS or ETWS, according to the method of the present disclosure described in FIG. 2, rescue of a survivor can be made not only when there is no way for the survivor to escape from the emergency disaster situation, but also when the survivor does not know his or her current location, or when the survivor is conscious but cannot attempt to make a call for rescue. In particular, according to the method of the present disclosure described in FIG. 2, a terminal (201) of a survivor in an emergency disaster situation can systematically report its location by utilizing the interface of a PWS or ETWS. Through this, the location of the survivor in an emergency disaster situation can be identified, and the method of the present disclosure described in FIG. 2 can be particularly useful for survivors who are physically challenged to the point of being unable to directly request rescue.

[0072] Referring to FIG. 2, according to one embodiment of the present disclosure, an AI server (205) may perform an interaction for service registration for survivor reporting with an MME (207) (210). The interaction for service registration for survivor reporting may include an operation in which the AI ​​server (205) transmits a message for service registration for survivor reporting to the MME (207), and an operation in which the AI ​​server (205) receives a response message to the message for service registration for survivor reporting from the MME (207). A separate interface for the interaction for service registration for survivor reporting may be configured, or the interaction for service registration for survivor reporting may be performed through an API call / invocation between the MME (207) and the AI ​​server (205). Additionally, the AI ​​server (205) may operate as an independent NE, or may operate as an application in an NE, such as an MME, a RAN Intelligence Controller (RIC), or a Service Management and Orchestration (SMO) of 3GPP and / or ORAN. A service registration or service registration message may include the following information.

[0073] 1) AI server information

[0074] AI server information may be used by the MME to identify the address of the server to which the received survivor report or measurement result report is to be delivered when the MME receives a survivor report or measurement result report containing a survivor report reported by a terminal. The server address may be in the form of an IP address or URL address.

[0075] 2) Location measurement preference information

[0076] Location measurement preference information may indicate how a terminal will perform location measurement for survivor reporting. Location measurement preference information may indicate either the Global Positioning System (GPS), hardware-based measurement, or software-based measurement. Specifically, from the perspective of precise / accurate structure, the hardware-based measurement method may be used as the default setting.

[0077] 3) Reporting period information

[0078] Reporting cycle information may be used to indicate the reporting cycle of a terminal when performing survivor reporting. The reporting cycle information may indicate either periodic reporting or event-based reporting. If periodic reporting is indicated, survivor reporting can be performed periodically regardless of the occurrence of an emergency disaster. If event-based reporting is indicated, survivor reporting can be performed whenever the conditions for survivor reporting are met.

[0079] 4) Recognition preference information

[0080] The recognition / identification preference information may be information that indicates the method used by the terminal to recognize / identify the terminal user as a survivor in an emergency disaster situation when the terminal performs a survivor report. The recognition / identification preference information may indicate at least one of touch-based, voice recognition, and heuristic information. When touch-based is used as the user recognition / identification method, the terminal can identify the user if the terminal detects at least multiple touches of a screen or button, not just one. The terminal can then perform a survivor report based on the user identification. When voice recognition is used as the user recognition / identification method, specific situations may be considered where the user of the terminal cannot touch the terminal, but can at least command the terminal to recognize that he or she is alive through his or her voice. When the user's voice is detected, the terminal can identify the user and perform a survivor report based on the user identification. When heuristics are used as a user recognition / identification method, the AI ​​client embedded in the terminal runs its own solution and / or plug-in 3 to determine whether a survivor report is required. rd Third-party software (plug-in third-party software) may be allowed to perform its own method. In particular, heuristic methods may be considered when the terminal's AI client recognizes / identifies that user activity on the terminal is inactive.

[0081] 5) Neighboring Info. Reporting mode

[0082] The neighbor information reporting mode may be information indicating whether the survivor report includes measurement results for the neighboring base station / cell of the terminal. The neighbor information reporting mode may indicate either "included" or "no inclusion." In particular, if the neighbor information reporting mode indicates inclusion, the survivor report may include information about the measurement results for the neighboring cell of the terminal along with the measurement result report for the serving cell, and the information about the measurement results for the neighboring cell of the terminal may be used to determine the location of the terminal.

[0083] Returning to Figure 2, in the event of an emergency disaster, the CBE / CBC (209) may broadcast a warning (215). The CBE / CBC (209) may use a Write-Replace Warning Request for warning broadcasting. The MME (207) then responds (220) to the Write-Replace Warning Request for warning broadcasting received from the CBE / CBC (209), indicating that the request has been successfully received and processed. The MME (207) may use a Write-Replace Warning Confirm in its response to the CBE / CBC (209).

[0084] Thereafter, if a survivor reporting request is registered from / by the AI ​​server (205) according to operation 210, the MME (207) may transmit a Write-Replace Warning Request containing a new IE, Survivor Reporting / Survivor Reporting Initiation, to the RAN (203) (225). The Survivor Reporting Initiation may contain the same IE as the IE included in the service registration request described in operation 210.

[0085] The RAN (203) responds (235) to the Write-Replace Warning Request received from the MME (207), indicating that the request has been received and processed successfully. The response from the RAN (203) to the MME (207) may use a Write-Replace Warning Response. The RAN (203) may be a RAN AP, and the RAN (203) may be any type of base station, regardless of whether it is licensed or unlicensed for any wireless communication technology used by the RAN AP.

[0086] The RAN (203) / RAN AP may transmit an alert message via cell broadcasting or system information (230). That is, the RAN (203) / RAN AP transmits configuration information related to survivor reporting in an emergency disaster situation / emergency situation to the terminal (201), and the configuration information may be transmitted via cell broadcasting or system information. Alternatively, a separate standardized interface and / or API call that can be used between the RAN AP and the UE may be used to transmit configuration information related to survivor reporting. In particular, from an interface extension perspective, a separate standardized interface and / or API call that can be used between the RAN AP and the UE may be used to transmit configuration information related to survivor reporting. The configuration information transmitted by the RAN (203) to the terminal (201) may be information generated based on the IE included in the service registration request described in operation 210, or the configuration information may include the same IE as the IE included in the service registration request described in operation 210. In the present disclosure, RAN AP is not limited to RAN AP as defined in 3GPP standards, such as eNB, RNC (Radio Network Controller), etc., and the information elements described in the present disclosure may also be applied to other types of APs, such as WLAN APs running in unlicensed spectrum.

[0087] After the terminal (201) receives the configuration information from the RAN (203), the AI ​​client included in the terminal (201) can perform a user recognition / identification algorithm (or a user pattern recognition algorithm) (240). Based on the user identification result, the terminal (201) can transmit an (improved) measurement report including a survivor report response IE to the RAN (203) (245). Here, the survivor report response IE may also be referred to as a survivor report, and may be referred to in various modified forms within a range that is substantially identical / similar to this. The operation of the terminal (201) transmitting the (improved) measurement report including the survivor report response IE may also be understood as being performed by the AI ​​client included in the terminal.

[0088] Survivor Report Response IE / Survivor Report may include the following information:

[0089] 1) AI Server Information

[0090] The AI ​​server information included in the survivor report may be information about the address of the AI ​​server (205) to which the survivor report transmitted by the terminal (201) is transmitted. The address of the AI ​​server (205) may be configured in the form of an IP address or URL address.

[0091] 2) Location Information Report

[0092] The location information report included in the survivor report may be information about the location of the terminal (201) measured based on a set location measurement method. The location information report included in the survivor report may be transmitted to the rescuer's terminal by the AI ​​server (205) for the rescue of the survivor who is the user of the terminal (201).

[0093] 3) Reporting period

[0094] The reporting cycle included in the survivor report may be information indicating the reporting cycle actually used by the terminal (201) for the current survivor report. That is, the reporting cycle may indicate the reporting cycle actually used by the terminal (201) for survivor report among periodic reporting or event-based reporting that can be set according to operation 210.

[0095] 4) Identification / Recognition

[0096] The identification / recognition included in the survivor report may be information indicating the user identification / recognition method actually used by the terminal (201) for the survivor report. That is, the identification / recognition may indicate the user identification / recognition method actually used by the terminal (201) for the survivor report among the user identification / recognition methods that may be set according to operation 210.

[0097] 5) Neighboring Info.

[0098] Neighbor information may be included in a survivor report when the survivor report is set to include measurement results for neighboring base stations / cells of the terminal according to operation 210, and may be information on measurement results of the terminal (201) for neighboring base stations / cells other than the serving base station / cell. Information on measurement results for neighboring base stations / cells of the terminal (201) may be used to determine the location of the terminal (201).

[0099] 6) Battery remaining

[0100] The remaining battery capacity included in the survivor report may be information for representing information about the remaining battery capacity of the terminal (201) in a specific format. For example, the information about the remaining battery capacity may be configured in the form of a percentage.

[0101] In order to enable the terminal to perform survivor reporting, other messages and / or interfaces may be configured in addition to the (enhanced) measurement reporting described above.

[0102] Next, the RAN (203) can transmit the retrieved survivor reporting response extracted from the measurement report received from the terminal (201) to the MME (207) (250). Thereafter, the MME (207) can report the survivor reporting response received from the RAN (203) to the AI ​​server (205) (255).

[0103] Additionally, whenever an (enhanced) measurement report including a survivor report is performed by the terminal, the terminal's AI client may notify the terminal's user that a survivor report has been performed. Furthermore, the terminal's AI client may provide a notification to allow the user to manually stop the survivor report.

[0104] FIG. 2 assumes a situation in which a RAN AP (base station) can establish a connection with a terminal and operate normally. However, a situation may arise in which the RAN AP cannot establish a connection with a terminal and cannot operate normally. In this case, the introduction of a third communication entity equipped with RAN AP functions and network connection functions that can replace the role of the base station, which is a RAN AP that cannot operate normally, may be considered. In the present disclosure, an aerial object may be considered as the third communication entity that can replace the role of the base station, which is a RAN AP that cannot operate normally. The aerial object may be any flying device in the form of an unmanned aerial vehicle (UAV), and an example of a UAV may be a drone. If the introduction of a UAV to replace a base station, which is a RAN AP, is considered, a decryption key may be provided to the terminal and the UAV in an authenticated manner to resolve security issues. In this disclosure, a situation in which a base station, a RAN AP, cannot operate normally can be understood as a concept that includes a case in which a service operator or an authorized organization recognizes or suspects that the RAN AP is not in service. Furthermore, the UAV may communicate via a satellite and / or other connection path toward the service operator's core network (CN).

[0105] Below, with reference to FIG. 3, a method for reporting survivors in a situation where the RAN AP cannot operate normally is described.

[0106] FIG. 3 is a flowchart illustrating another example of an operation performed for a survivor rescue service in an emergency disaster situation according to one embodiment of the present disclosure.

[0107] A UAV (302) to replace a RAN AP (303) that cannot operate normally can monitor whether the RAN AP (303) is operating by monitoring a pilot signal transmitted by the RAN AP (303) and / or control channels through which system information is broadcast. At this time, the UAV (302) deployment is executed when there is no response to a write-replace warning request (see Fig. 2. (235)), when the service of the problematic RAN AP (303) becomes unavailable through self-diagnosis, or when a neighboring RAN AP of the problematic RAN AP (303) detects that the RAN AP (303) is disconnected, etc.

[0108] Monitoring operation of whether the RAN AP (303) of the UAV (302) is operating can be performed every few minutes, hours, or immediately (as preset by the operator). If the UAV (302) cannot receive any signal and / or channel from the RAN AP (303), the UAV (302) can detect that the RAN AP (303) is not operating normally, i.e., is out of service, and at this time, optionally, can request its own registration to the AI ​​server (310). The AI ​​server (305) can perform an interaction for service registration for survivor reporting with the MME (307) (315). The interaction for service registration for survivor reporting can include an operation in which the AI ​​server (305) transmits a message for service registration for survivor reporting to the MME (307), and an operation in which the AI ​​server (305) receives a response message to the message for service registration for survivor reporting from the MME (307). Afterwards, in case of an emergency disaster situation, the CBE / CBC (309) can initiate warning broadcasting (320). The CBE / CBC (309) can use a Write-Replace Warning Request for warning broadcasting. Next, the MME (307) responds (325) to the Write-Replace Warning Request for warning broadcasting received from the CBE / CBC (309), and the response can indicate that the request has been received and processed successfully. The response from the MME (207) to the CBE / CBC (209) can use a Write-Replace Warning Confirm. 330 of FIG. 3 corresponds to a RAN AP (303) service outage, indicating that the signal transmission from the MME (307) to the RAN AP (303) and the signal transmission from the terminal (301) to the RAN AP (303) have failed.

[0109] Meanwhile, the UAV (302) can notify that the UAV (302) is operating as an AP by replacing the RAN AP (303) by starting system information broadcasting (335). Thereafter, the terminal (301) can be aware that the UAV (302) is operating as a replacement for the RAN AP (303), and can update the terminal's location to the UAV (302) by transmitting a survivor report to the UAV (302) that replaces the RAN AP (303) instead of the RAN AP (303).

[0110] Thereafter, the UAV (302) and terminal (301) replacing the MME (307), AI server (305), and RAN AP (303) can perform the same operations as operations 225 to 255 described in FIG. 2 (345).

[0111] UAVs replacing RAN APs can use satellite links or Citizens Broadband Radio Service (CBRS) frequencies to establish connections to the core network of a survivor reporting service operator. Additionally, UAVs can use CBRS frequencies to provide RAN AP connections to terminals.

[0112] Since the UAV must not interfere with the operation of neighboring APs, it must be able to monitor the operating frequency band to determine if the AP in question is malfunctioning or not, as well as neighboring APs.

[0113] If a UAV can no longer provide service as a replacement for a RAN AP (e.g., due to low battery and / or network connection failure), the UE may instruct the UE (or its AI client) to search for another AP or another UAV. At this time, the UE may search for an alternative serving cell and, if it acquires one, reconnect to the newly acquired serving cell.

[0114] Hereinafter, with reference to FIG. 4, a method that can be performed when a RAN AP cannot receive a survivor report from a terminal is described. According to one embodiment of the present disclosure, even if the RAN AP cannot receive a survivor report including the terminal's location from the terminal, the RAN AP can transmit the terminal's approximate location to the AI ​​server via the MME.

[0115] FIG. 4 is a diagram showing another example of how a survivor reporting method according to one embodiment of the present disclosure is performed.

[0116] Referring to FIG. 4, the operation described in FIG. 4 may be an operation performed after operations 210 to 225 of FIG. 2 are performed (410).

[0117] The RAN (403) may transmit a cell broadcast or paging request including a survivor report IE and an alert notifying the occurrence of an emergency disaster situation to the terminal (401). In addition, the RAN (403) may transmit a write-replace alert response to the MME (407) (420). Thereafter, if the connection of the terminal (401) to the RAN (403) is lost, the RAN (403) may identify that the terminal's (401) survivor report cannot be received. At this time, a device mounted on the RAN, such as a gyroscope sensor, may be used for the RAN (403) to identify that the terminal's (401) survivor report cannot be received.

[0118] In particular, in a situation where the RAN (403) cannot receive a survivor report from the terminal (401), the RAN (403) can anonymously perform operation 250 of FIG. 2 without a preceding step initiated by the AI ​​server, such as operations 215 to 225 of FIG. 2, to report an emergency situation occurring around the AP where it is located to the MME (425). In this case, the MME (407) can directly forward the report received from the RAN (403) to the AI ​​server with an indication that it is anonymous (430). In this case, since the RAN AP (403) cannot know the terminal location measured by the terminal (401), it can use parameters related to the terminal location to estimate the terminal location. The parameters related to the terminal location used by the RAN AP (403) to estimate the terminal location may include parameters related to beamforming applied to signal transmission to the terminal (401) that was served most recently. Here, beamforming-related parameters may include beam timing offset and beam index. In operations 425 and 430 of FIG. 4, the RAN AP (403) may transmit the estimated location of the terminal (401) based on the assumption that the terminal (401) has previously been provided with service but is still within its serving area, instead of the information reported by the terminal (401).

[0119] It may be assumed that the actual terminal (401) is in the serving area only if a certain amount of time has not passed since the last reported time. In the present invention, the certain amount of time is defined as being settable from minutes to infinity, but the actual operating value is determined autonomously by each RAN AP operator according to network configuration optimization.

[0120] Below, with reference to Figure 5, we describe how a survivor report is triggered by a rescuer's terminal in an emergency disaster situation. In an emergency disaster situation, the rescuer's terminal may be referred to as an authorized terminal.

[0121] FIG. 5 is a diagram showing another example of how a survivor reporting method according to one embodiment of the present disclosure is performed.

[0122] Referring to FIG. 5, as a method for triggering a survivor report by the rescuer's terminal (501), either a method in which the terminal (501) requests a survivor report trigger to the AI ​​server (505) (Option 1) or a method in which the terminal (501) directly requests a survivor report trigger to the RAN (503) (Option 2) may be used.

[0123] First, in the case of Option 1, the terminal (501) may request a survivor report trigger from the AI ​​server (505) (510). At this time, the survivor report trigger request may be a request from the terminal (501) to the AI ​​server (505) to transmit to the terminal a survivor report of at least one other terminal managed / stored by the AI ​​server (505). Thereafter, the same operations as operations 210 to 255 of FIG. 2 may be performed (515). Thereafter, the terminal (501) may receive a response including a survivor report of at least one other terminal from the AI ​​server (505) (520).

[0124] Next, for option 2, the terminal (501) can request a survivor report trigger from the RAN (503) (525). At this time, the RAN (503) must inform the serving terminal that it supports a method such as including an indication in the broadcast information, and must be able to provide an estimation function that can roughly calculate the terminal location based on an internal source, such as beamforming. The RAN (503), which receives the survivor report trigger from the terminal (501), can estimate the approximate location of the terminals it serves based on the beamforming information (530). Thereafter, the RAN (503) can transmit a response including information about the locations of the terminals it serves to the terminal (501) (535). Additionally, the RAN (503) can connect to a neighboring RAN to report the locations of the terminals it serves to the terminal (501) that transmitted the survivor report trigger request. At this time, the neighboring RANs can transmit information about the locations of the terminals they serve to the RAN (503). In this case, the response that the RAN (503) transmits to the terminal (501) that transmitted the survivor report trigger request may include information about the locations of the terminals served by the neighboring RAN, received from the neighboring RAN. The RAN (503) can collect information about the locations of the terminals received from the neighboring RAN, include it in a single response message, and transmit it to the terminal (501), or individually transmit information about the locations of the terminals received from the neighboring RAN to the terminal (501).

[0125] Below, the operation algorithms in the AI ​​server and the AI ​​client of the terminal performing the survivor report are described.

[0126] First, referring to Fig. 6, one embodiment of the configuration of the AI ​​server will be described.

[0127] FIG. 6 is a diagram showing an example of an AI server configuration according to one embodiment of the present disclosure.

[0128] Referring to FIG. 6, the AI ​​server (601) may include the following main components and may operate as described below.

[0129] Service Administration: This component primarily deals with the interaction with the MME (603) to initiate survivor reporting and ML-based training management (615, 635) for algorithmic operation of service registration (610) and report analysis.

[0130] Report Analysis: This component first analyzes a survivor report (620) transmitted by a terminal. Thereafter, this component can provide a UE distribution report (640) to an external component (or server) that has requested service registration via a Service Registration (REST) ​​API call and / or some type of external interface. Furthermore, this component can manage the analyzed report in a database (625).

[0131] Below, an algorithm is described for an AI server to determine an appropriate reporting cycle for a terminal performing survivor reporting to use for survivor reporting, and an algorithm is described for an AI server to determine an appropriate survivor identification method for a terminal to use for survivor identification.

[0132] First, the AI ​​server describes an algorithm for determining an appropriate reporting cycle for a survivor reporting terminal to use for survivor reporting.

[0133] The inputs to the algorithm for determining the terminal reporting cycle of the AI ​​server can be as follows.

[0134] 1) The number of reports for the reporting period = Periodic reporting

[0135] 2) Number of reports in the reporting period = Event-based reporting

[0136] 3) The percentage of reports without movements among all reports

[0137] 4) Air condition related information - Frequency interference, SINR, and so on, which have also been collected from the reporting previously.

[0138] The output from the algorithm for determining the terminal reporting cycle of the AI ​​server may be as follows.

[0139] 1) (Recommended) Reporting Period = Periodic or Event-based reporting

[0140] To determine the terminal reporting cycle, the AI ​​server can use any type of algorithm, including a Dense Neural Network (DNN), a Convolution Neural Network (CNN), or a simple, low-cost algorithm. The number of layers and activation function of the neural network (NN) can be a function such as Relu.

[0141] Next, the AI ​​server describes an algorithm for determining an appropriate survivor identification method for the terminal to use for survivor identification.

[0142] The AI-based engine can run on the AI ​​server (or AI client) to learn and make decisions in real time. Furthermore, even for mechanisms that are not real-time, delays of tens of seconds or more may be acceptable. If the AI ​​server does not instruct the terminal on a specific survivor identification method, the terminal can select an appropriate survivor identification method on its own. The algorithm used by the AI ​​server to determine the appropriate survivor identification method for the terminal to use can also be used on the terminal.

[0143] The inputs to the algorithm for the AI ​​server to determine the appropriate survivor identification method for the terminal to use for survivor identification are as follows.

[0144] Input 1: The average interval of screen touch by users previously over the same hour at old days

[0145] Input 2: The last interval of no movement of the terminal user. Here, the absence of movement of the terminal user can be regarded as not holding a mobile device.

[0146] Input 3: The change interval of mobile gyroscope by users previously over the same hour at old days

[0147] Additional input (optional) - Traffic usage patterns, etc. (sort of the traffic use pattern). For example, traffic usage patterns can include factors such as watching videos, browsing the web or making video calls, playing video games, viewing gallery content, reading documents, time of day, listening to music, working or non-working days, public or non-public holidays, or country.

[0148] The output from the algorithm for the AI ​​server to determine an appropriate survivor identification method for the terminal to use for survivor identification is as follows.

[0149] 1) Suggest one of Heuristic, Screen Touch, or Voice Recognition as a survivor identification method.

[0150] 2) Prediction of being active or not active, sleeping or working or gym or walking or relaxing. This output can be provided if additional input is given.

[0151] An ML / AI-based selection algorithm can be used by the AI ​​server to determine the survivor identification method for a terminal. In the selection algorithm, different weights can be assigned to each of the three main inputs described above. For example, the weights can be assigned in the format of Input 1 > Input 2 > Input 3. This is merely an example, and weights can be assigned in various other formats. To determine the survivor identification method for a terminal, the AI ​​server can collect information about the inputs described above from the terminal. This information about the inputs can be referred to as user pattern collection information. Referring to Figure 7, the operation of the AI ​​server collecting selection algorithm inputs to determine the survivor identification method for a terminal is described.

[0152] FIG. 7 is a flowchart illustrating a method of collecting selection algorithm inputs for determining a survivor identification method by an AI server according to one embodiment of the present disclosure.

[0153] Referring to FIG. 7, it can be seen that in the method in which the AI ​​server collects selection algorithm inputs for determining a survivor identification method, the CBE / CBC (709) is not involved in the operation.

[0154] The AI ​​server (705) can perform a service registration procedure to collect information about the MME (707) and UE distribution / selection algorithm inputs (710).

[0155] Thereafter, the MME (707) may transmit a fill-in-place alert request for user statistics collection to the RAN (703), including a survivor report IE (715), and the RAN may transmit a fill-in-place alert response in response thereto (720).

[0156] RAN (703) includes a survivor report IE and can transmit a cell broadcast or paging request for statistical count of the terminal (701) to the terminal (701) (725).

[0157] The terminal (701) can perform user statistics collection (730). Furthermore, the terminal (701) can transmit a measurement report containing user pattern collection information obtained through user statistics collection to the RAN (703) (735). The user pattern collection information can be used as input to a selection algorithm in the AI ​​server.

[0158] The RAN (703) may transmit a fill-in-place warning response containing the user pattern collection information received from the terminal (701) to the MME (707) (740). The MME (707) may transmit a service report containing the received user pattern collection information to the AI ​​server (705) (745). The AI ​​server may use the user pattern collection information received from the MME (707) as input to a selection algorithm for determining the user identification method of the terminal.

[0159] The interface used by the AI ​​server (705) to trigger user pattern collection may be the same interface used by the AI ​​server (705) to trigger survivor reports. Furthermore, in the method of FIG. 7, the start and end of the operation may be triggered (in advance) in a scheduled manner or as needed. Additionally, to prevent traffic overload due to a large number of reports collected and reported from multiple terminals, the terminal may be able to arbitrarily determine the reporting time, or, in the case of (advance) scheduling, may be able to support the ability to perform reporting at a time when there is no traffic or active voice traffic.

[0160] Below, a survivor identification algorithm in the AI ​​client of the terminal is described with reference to FIG. 8.

[0161] FIG. 8 is a diagram illustrating an example of a terminal AI client configuration that performs survivor identification according to one embodiment of the present disclosure.

[0162] Referring to FIG. 8, the AI ​​client (803) of the UE (801) can manage (815) the detected information through the touchscreen and voice recognition function (805) of the user interface (UI) of the UE. In addition, the AI ​​client (803) of the UE (801) can include a detection manager that is connected to the RAN UE software (820) and receives (810) messages transmitted from the PWS or ETWS message manager. In addition, the information generated by the detection manager can be stored and managed in a database. In addition, the AI ​​client (803) includes an AI-based detection learning algorithm, and the AI-based detection learning algorithm can be configured as shown in Table 1 below.

[0163]

[0164] The AI-based detection learning algorithm may include individual actions set to derive a result regarding the survival of a survivor based on the survivor identification method, and may include an action to perform a measurement report based on the result regarding the survival.

[0165] Additionally, to prevent false positives / false alerts in AI clients, AI-based pattern recognition detection can continuously learn all previous patterns of screen inputs or button touches (or any type of phone access) monitored by the user. The AI ​​client can be configured to call the API of an external algorithm provided by the terminal to avoid false positives / false alerts. Otherwise, the AI ​​client would have to treat the algorithm as if it were not present, thus avoiding false alarms.

[0166] FIG. 9 is a diagram for explaining a method for reporting survivors of a terminal according to one embodiment of the present disclosure.

[0167] According to one embodiment, the terminal may receive, from the base station, configuration information related to survivor reporting in an emergency situation (910).

[0168] The above configuration information may include at least one of information on a location measurement method of the terminal or information on a survivor identification method used to identify a survivor to determine that a user of the terminal is in the emergency situation.

[0169] According to one embodiment, the terminal may determine the survivor identification method used for survivor identification based on information about the survivor identification method (920).

[0170] According to one embodiment, the terminal can perform survivor identification based on the determined survivor identification method (930).

[0171] According to one embodiment, the terminal may transmit a measurement result report including the survivor report to the base station based on the survivor identification (940).

[0172] At this time, the survivor report may include at least one of information about the survivor identification method used by the terminal or information about the location of the terminal measured based on a location measurement method determined based on information about the location measurement method of the terminal.

[0173] FIG. 10 is a diagram for explaining a method for reporting survivors at a base station according to one embodiment of the present disclosure.

[0174] According to one embodiment, a base station may transmit, to a user equipment, configuration information related to survivor reporting in an emergency situation (1010).

[0175] At this time, the setting information may include at least one of information on a location measurement method of the terminal or information on a survivor identification method used to identify survivors to determine that the user of the terminal is in the emergency situation.

[0176] According to one embodiment, the base station may receive, from the terminal, a measurement result report including the survivor report based on the survivor identification (920).

[0177] Here, the survivor report may include at least one of information about the survivor identification method used by the terminal determined based on information about the survivor identification method or information about the location of the terminal measured based on a location measurement method determined based on information about the location measurement method of the terminal.

[0178] FIG. 11 is a diagram for explaining a method for reporting survivors by an AI server according to one embodiment of the present disclosure.

[0179] According to one embodiment, the AI ​​server may determine, based on machine learning-based learning, at least one of a reporting cycle of survivor reporting performed by at least one terminal in an emergency situation or a survivor identification method to be used by the at least one terminal to identify a survivor to determine that the user of the at least one terminal is in the emergency situation (1110).

[0180] According to one embodiment, the AI ​​server may transmit a service registration message related to the survivor report of the at least one terminal to a Mobility Management Entity (MME) (1120).

[0181] At this time, the service registration message may include at least one of information on the reporting cycle, information on the survivor identification method, or information on the location measurement method of the at least one terminal, determined based on the machine learning-based learning.

[0182] According to one embodiment, the AI ​​server may receive from the MME a service report message including a survivor report of each of the at least one terminal based on the service registration message (1130).

[0183] Here, the survivor report of each of the at least one terminal may include at least one of information about the reporting period, information about the survivor identification method used by each of the at least one terminal determined based on information about the survivor identification method, or information about the location of each of the at least one terminal measured based on a location measurement method determined based on information about the location measurement method.

[0184] FIG. 12 is a diagram for explaining a method for reporting survivors of a UAV according to one embodiment of the present disclosure.

[0185] In one embodiment, the UAV can identify whether the connection between the base station and the user equipment has been lost (1210).

[0186] In one embodiment, the UAV may establish a connection with the terminal when the connection between the base station and the terminal is identified as being disconnected (1220).

[0187] According to one embodiment, the UAV may transmit configuration information related to survivor reporting in an emergency situation to the terminal (1230).

[0188] Here, the setting information may include at least one of information on a location measurement method of the terminal or information on a survivor identification method used to identify a survivor to determine that the user of the terminal is in the emergency situation.

[0189] According to one embodiment, the UAV may receive a measurement result report including the survivor report based on the survivor identification from the terminal (1240).

[0190] Here, the survivor report may include at least one of information about the survivor identification method used by the terminal determined based on information about the survivor identification method or information about the location of the terminal measured based on a location measurement method determined based on information about the location measurement method of the terminal.

[0191] FIG. 13 is a diagram illustrating the structure of a base station according to one embodiment of the present disclosure.

[0192] Referring to FIG. 13, the base station of the present disclosure may include a transceiver (1310), a storage (1320), and a control unit (1330). The transceiver (1310), the storage (1320), and the control unit (1330) of the base station may operate according to the communication method of the base station described above. However, the components of the base station are not limited to the examples described above. For example, the base station may include more or fewer components than the components described above.

[0193] The transceiver (1310) is a general term for the receiver of the base station and the transmitter of the base station, and can transmit and receive signals with terminals and / or other network entities. The signals transmitted and received with the terminals and / or other network entities may include control information and data. To this end, the transceiver (1310) may be configured with an RF transmitter that up-converts and amplifies the frequency of a transmitted signal, and an RF receiver that low-noise amplifies and frequency-downconverts the received signal. However, this is only one embodiment of the transceiver (1310), and the components of the transceiver (1310) are not limited to the RF transmitter and RF receiver. In addition, the transceiver (1310) may include various configurations for transmitting and receiving signals. In addition, the transceiver (1310) may receive a signal through a wired or wireless channel, output it to the control unit (1330), and transmit the signal output from the control unit (1330) through the wired or wireless channel.

[0194] The storage unit (1320) can store programs and data required for the operation of the base station. In addition, the storage unit (1320) can store control information or data included in signals acquired from the base station. The storage unit (1320) can be configured as a storage medium, such as a ROM, a RAM, a hard disk, a CD-ROM, a DVD, or a combination of storage media.

[0195] The control unit (1330) can control a series of processes so that the base station can operate according to the embodiments of the present disclosure described above. The control unit (1330) can include at least one processor.

[0196] FIG. 14 is a diagram illustrating the structure of a terminal according to one embodiment of the present disclosure.

[0197] Referring to FIG. 14, the terminal of the present disclosure may include a transceiver (1410), a storage (1420), and a control unit (1430). The transceiver (1410), the storage (1420), and the control unit (1430) of the terminal may operate according to the communication method of the terminal described above. However, the components of the terminal are not limited to the examples described above. For example, the terminal may include more or fewer components than the components described above. In addition, the transceiver (1410), the storage (1420), and the control unit (1430) may be implemented in the form of a single chip.

[0198] The transceiver (1410) is a general term for the receiver and transmitter of the terminal, and can transmit and receive signals with a base station or a network entity. The signals transmitted and received with the base station may include control information and data. To this end, the transceiver (1410) may be configured with an RF transmitter that up-converts and amplifies the frequency of a transmitted signal, and an RF receiver that low-noise amplifies and frequency-converts the received signal. However, this is only one embodiment of the transceiver (1410), and the components of the transceiver (1410) are not limited to the RF transmitter and RF receiver. In addition, the transceiver (1410) may include various configurations for transmitting and receiving signals. In addition, the transceiver (1410) may receive a signal through a wireless channel and output it to the control unit (1430), and transmit the signal output from the control unit (1430) through the wireless channel.

[0199] In addition, the transmitter / receiver unit (1410) can receive a communication signal and output it to the control unit, and transmit the signal output from the control unit to a network entity through a wired or wireless network.

[0200] The storage unit (1420) can store programs and data necessary for the operation of the terminal. In addition, the storage unit (1420) can store control information or data included in signals obtained from the terminal. The storage unit (1420) can be configured as a storage medium such as a ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media.

[0201] The control unit (1430) can control a series of processes so that the terminal can operate according to the embodiments of the present disclosure described above. The control unit (1430) may include at least one processor. For example, the control unit (1430) may include a communication processor (CP) that performs control for communication and an application processor (AP) that controls upper layers such as application programs.

[0202] According to one embodiment of the present disclosure, in a wireless communication system, a server determines, based on machine learning-based learning, at least one of a reporting period of survivor reporting performed by at least one terminal in an emergency situation or a survivor identification method to be used by the at least one terminal to identify a survivor to determine that a user of the at least one terminal is in the emergency situation, and transmits, to a Mobility Management Entity (MME), a service registration message related to the survivor reporting of the at least one terminal, wherein the service registration message may include at least one of information on the reporting period, information on the survivor identification method, or information on the location measurement method of the at least one terminal, which are determined based on the machine learning-based learning. The server receives, from the MME, a service report message including a survivor report of each of the at least one terminal based on the service registration message, and the survivor report of each of the at least one terminal may include at least one of information about the reporting period, information about the survivor identification method used by each of the at least one terminal determined based on information about the survivor identification method, or information about the location of each of the at least one terminal measured based on a location measurement method determined based on information about the location measurement method.

[0203] According to one embodiment of the present disclosure, the service registration message further includes at least one of information on the address of the server or information on whether the survivor report includes a measurement result for a neighboring base station of each of the at least one terminal, and the survivor report may further include at least one of information on the address of the server, information on the remaining battery capacity of each of the at least one terminal, or a measurement result for the neighboring base station of each of the at least one terminal.

[0204] According to one embodiment of the present disclosure, the server may receive, from the MME, a service report message including an estimated value for the location of each of the at least one terminal estimated based on terminal location-related parameters.

[0205] According to one embodiment of the present disclosure, the terminal location related parameters include parameters related to beam forming applied to signal transmission from at least one base station related to the at least one terminal to the at least one terminal, and the parameters related to beam forming may include a beam offset and a beam index applied at the time when the at least one base station most recently communicated with the at least one terminal, respectively.

[0206] According to one embodiment of the present disclosure, the server may receive a message requesting a survivor report of each of the at least one terminal from a specific terminal other than the at least one terminal, and transmit a response including a survivor report of each of the at least one terminal to the specific terminal.

[0207] According to one embodiment of the present disclosure, in a wireless communication system, an unmanned aerial vehicle (UAV) identifies whether a connection between a base station and a user equipment (UE) has been released, and if it is determined that the connection between the base station and the UE has been released, establishes a connection with the UE, and transmits configuration information related to survivor reporting in an emergency situation to the UE, wherein the configuration information may include at least one of information on a location measurement method of the UE or information on a survivor identification method used to identify a survivor who determines that a user of the UE is in the emergency situation. The UAV receives, from the UE, a measurement result report including the survivor report based on the survivor identification, and the survivor report may include at least one of information on the survivor identification method used by the UE determined based on the information on the survivor identification method or information on a location of the UE measured based on a location measurement method determined based on the information on the location measurement method of the UE.

[0208] According to one embodiment of the present disclosure, the UAV can identify whether the UAV can provide a survivor report service on behalf of the base station, and if it is identified that the UAV can no longer provide a survivor report service on behalf of the base station, transmit a message instructing the terminal to search for another base station and / or another UAV to receive the survivor report service. The operating frequency band of the UAV related to the survivor report and the operating frequency band of the base station related to the survivor report are the same or different frequency bands, and a decryption key used by the terminal can be provided to the UAV.

[0209] According to one embodiment of the present disclosure, a terminal of a wireless communication system may include a transceiver configured to transmit and receive signals; and at least one processor connected to the transceiver. The at least one processor may receive configuration information related to survivor reporting in an emergency situation, wherein the configuration information may include at least one of information on a location measurement method of the terminal or information on a survivor identification method used to identify a survivor for determining that a user of the terminal is in the emergency situation. The processor may determine the survivor identification method used for the survivor identification based on the information on the survivor identification method, perform the survivor identification based on the determined survivor identification method, and transmit a measurement result report including the survivor report based on the survivor identification, wherein the survivor report may include at least one of information on the survivor identification method used by the terminal or information on a location of the terminal measured based on a location measurement method determined based on the information on the location measurement method of the terminal.

[0210] According to one embodiment of the present disclosure, a base station of a wireless communication system may include a transceiver configured to transmit and receive signals; and at least one processor connected to the transceiver. The at least one processor transmits, to user equipment, configuration information related to survivor reporting in an emergency situation, wherein the configuration information may include at least one of information on a location measurement method of the terminal or information on a survivor identification method used to identify a survivor who determines that a user of the terminal is in the emergency situation. The at least one processor transmits, from the terminal, a measurement result report including the survivor report based on the survivor identification, wherein the survivor report may include at least one of information on the survivor identification method used by the terminal determined based on the information on the survivor identification method or information on a location of the terminal measured based on a location measurement method determined based on the information on the location measurement method of the terminal.

[0211] It should be noted that the aforementioned configuration diagrams, examples of control / data signal transmission methods, examples of operational procedures, and configuration diagrams are not intended to limit the scope of the present disclosure. That is, not all components, entities, or operational steps described in the embodiments of the present disclosure should be construed as essential components for implementing the disclosure, and implementations may be made without detracting from the essence of the disclosure even if only some components are included. Furthermore, each embodiment may be combined and operated as needed. For example, parts of the methods described in the present disclosure may be combined to operate network entities and terminals.

[0212] The operations of the base station or terminal described above can be realized by providing a memory device storing the corresponding program code in any component within the base station or terminal device. That is, the control unit of the base station or terminal device can execute the operations described above by reading and executing the program code stored in the memory device using a processor or CPU (Central Processing Unit).

[0213] The various components and modules of the entity, base station or terminal device described in the present disclosure may be operated using hardware circuits, such as logic circuits based on complementary metal oxide semiconductors, firmware, software and / or hardware and firmware and / or software embedded in a machine-readable medium. For example, various electrical structures and methods may be implemented using electrical circuits such as transistors, logic gates and application-specific semiconductors.

[0214] When implemented in software, a computer-readable storage medium storing one or more programs (software modules) may be provided. The one or more programs stored in the computer-readable storage medium are configured for execution by one or more processors within an electronic device. The one or more programs include instructions that cause the electronic device to execute methods according to embodiments described in the claims or specification of the present disclosure.

[0215] These programs (software modules, software) may be stored in random access memory, non-volatile memory including flash memory, read only memory (ROM), electrically erasable programmable read only memory (EEPROM), magnetic disc storage device, compact disc ROM (CD-ROM), digital versatile discs (DVDs) or other forms of optical storage device, magnetic cassette. Or, they may be stored in a memory configured as a combination of some or all of these. In addition, each configuration memory may be included in multiple numbers.

[0216] Additionally, the program may be stored on an attachable storage device that is accessible via a communication network, such as the Internet, an intranet, a local area network (LAN), a wide local area network (WLAN), a storage area network (SAN), or a combination thereof. Such a storage device may be connected to a device implementing an embodiment of the present disclosure via an external port. Additionally, a separate storage device on the communication network may be connected to a device implementing an embodiment of the present disclosure.

[0217] In the specific embodiments of the present disclosure described above, components included in the disclosure are expressed singularly or plurally, depending on the specific embodiment presented. However, the singular or plural expressions are selected to suit the presented situation for convenience of explanation, and the present disclosure is not limited to singular or plural components. Components expressed in plural may be composed of singular elements, or components expressed in singular may be composed of plural elements.

[0218] While the detailed description of the present disclosure has described specific embodiments, it should be understood that various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be determined not only by the scope of the claims described below but also by equivalents thereof. In other words, it will be apparent to those skilled in the art that other modifications based on the technical idea of ​​the present disclosure are possible. In addition, each embodiment can be combined and operated as needed. For example, parts of the methods described in the present disclosure can be combined to operate a base station and a terminal. In addition, while the embodiments have been presented based on a 5G, NR system, other modifications based on the technical idea of ​​the embodiments can be implemented in other systems such as LTE, LTE-A, and LTE-A-Pro systems.

[0219] While the detailed description of this disclosure has described specific embodiments, it should be understood that various modifications are possible without departing from the scope of this disclosure. Therefore, the scope of this disclosure should not be limited to the described embodiments, but should be defined not only by the scope of the claims described below, but also by equivalents thereof.

Claims

1. A method performed by a terminal (user equipment) in a wireless communication system, A step for receiving setup information related to survivor reporting in an emergency situation from a base station; The above configuration information includes at least one of information on a location measurement method of the terminal or information on a survivor identification method used to identify survivors to determine that a user of the terminal is in the emergency situation; A step of determining the survivor identification method used for survivor identification based on information about the survivor identification method; A step of performing survivor identification based on the determined survivor identification method; and A step of transmitting a measurement result report including the survivor report to the base station based on the survivor identification, A method wherein the survivor report includes at least one of information about the survivor identification method used by the terminal or information about the location of the terminal measured based on a location measurement method determined based on information about the location measurement method of the terminal.

2. In paragraph 1, The above configuration information further includes at least one of information about the address of the server to which the survivor report is transmitted, information about the reporting cycle of the survivor report, or information about whether the survivor report includes measurement results for a neighboring base station of the terminal. A method wherein the survivor report further includes at least one of information about the address of the server, information about the reporting cycle, information about the remaining battery capacity of the terminal, or measurement results for the neighboring base station.

3. In paragraph 1, When a connection is established between the above terminal and the above base station: The above setting information is transmitted from the base station, which is an access point of the wireless access network where the survivor report is performed, to the terminal, The above measurement result report is transmitted from the terminal to the base station, When the connection between the above terminal and the above base station is released: The above setting information is transmitted to the terminal from an unmanned aerial vehicle (UAV) connected to the above wireless access network and another wireless access network or satellite, The above measurement result report is transmitted from the terminal to the UAV, A method in which the same or different frequency bands are used when a connection between the terminal and the base station is formed and when the connection between the terminal and the base station is released.

4. In paragraph 2, A method in which the survivor report is transmitted to another terminal that has requested transmission of a survivor report of at least one terminal including the terminal to the server.

5. In paragraph 4, A method in which a message is transmitted from the base station to the other terminal, the message including an estimated value for the location of each of the at least one terminal estimated based on terminal location related parameters.

6. A method performed by a base station in a wireless communication system, A step for transmitting setting information related to survivor reporting in an emergency situation to a terminal (user equipment), The above setting information includes at least one of information on a location measurement method of the terminal or information on a survivor identification method used to identify survivors to determine that a user of the terminal is in the emergency situation; and A step of receiving a measurement result report including the survivor report based on the survivor identification from the terminal, A method wherein the survivor report includes at least one of information about the survivor identification method used by the terminal determined based on information about the survivor identification method or information about the location of the terminal measured based on a location measurement method determined based on information about the location measurement method of the terminal.

7. In paragraph 6, The above configuration information further includes at least one of information about the address of the server to which the survivor report is transmitted, information about the reporting cycle of the survivor report, or information about whether the survivor report includes measurement results for a neighboring base station of the terminal. A method wherein the survivor report further includes at least one of information about the address of the server, information about the reporting cycle, information about the remaining battery capacity of the terminal, or measurement results for the neighboring base station.

8. In paragraph 6, When the connection between the above terminal and the above base station is released: The above setting information is transmitted to the terminal from a UAV (unmanned aerial vehicle) connected to a wireless access network or satellite other than the wireless access network where the survivor report is performed, The above measurement result report is transmitted from the terminal to the UAV, A method in which the same or different frequency bands are used when a connection between the terminal and the base station is formed and when the connection between the terminal and the base station is released.

9. In paragraph 6, If the connection between the terminal and the base station is released before receiving the measurement result report including the survivor report from the terminal after transmitting the setup information related to the survivor report: A step of identifying that a measurement result report including the survivor report cannot be received from the terminal; and A method further comprising the step of transmitting, to a Mobility Management Entity (MME), a message including an estimated value for the location of the terminal estimated based on terminal location-related parameters, based on the identification result.

10. In paragraph 9, A step of receiving a message for requesting a survivor report of at least one terminal including the terminal from a specific terminal other than the terminal; A step of transmitting a message to each of at least one neighboring base station associated with said at least one terminal, requesting a survivor report of each of said at least one terminal; A step of receiving a message including a survivor report of each of said at least one terminal from each of said at least one neighboring base stations; and Further comprising the step of transmitting a response including a survivor report of at least one terminal to said specific terminal, A method wherein each survivor report of said at least one terminal comprises an estimated value for the location of said at least one terminal, said estimated value being based on terminal location-related parameters.

11. In clause 10, The above terminal location related parameters are parameters related to beam forming applied to signal transmission from the base station to the at least one terminal, A method wherein the parameters related to the beam forming include a beam offset and a beam index applied at the time when the base station most recently communicated with the at least one terminal.

12. A method performed by a server in a wireless communication system, A step of determining at least one of a reporting cycle of survivor reporting performed by at least one terminal in an emergency situation or a survivor identification method to be used by the at least one terminal to identify a survivor who determines that a user of the at least one terminal is in the emergency situation based on machine learning-based learning; A step of transmitting a service registration message related to the survivor report of at least one terminal to an MME (Mobility Management Entity), The service registration message includes at least one of information about the reporting period, information about the survivor identification method, or information about the location measurement method of the at least one terminal, determined based on the machine learning-based learning; and A step of receiving a service report message including a survivor report of each of said at least one terminal based on said service registration message from said MME, A method wherein each survivor report of said at least one terminal includes at least one of information about the reporting period, information about the survivor identification method used by each of said at least one terminal determined based on information about the survivor identification method, or information about the location of each of said at least one terminal measured based on a location measurement method determined based on information about the location measurement method.

13. In paragraph 12, The above service registration message further includes at least one of information about the address of the server or information about whether the survivor report includes measurement results for each of the at least one neighboring base stations of the terminal, A method wherein the survivor report further includes at least one of information about the address of the server, information about the remaining battery capacity of each of the at least one terminal, or measurement results for the neighboring base station of each of the at least one terminal.

14. In paragraph 12, A method further comprising the step of receiving, from the MME, a service report message including an estimated value for the location of each of the at least one terminal based on terminal location-related parameters.

15. In paragraph 14, The terminal location related parameters include parameters related to beam forming applied to signal transmission from at least one base station related to at least one terminal to at least one terminal, A method wherein the parameters related to the beam forming include a beam offset and a beam index applied at the time when the at least one base station most recently communicated with the at least one terminal.

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