Method and device for controlling collection and transmission of terminal data in wireless communication system
Patent Information
- Application Number
- PCT/KR2026/004888
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-27
- Filing Date
- 2026-03-27
- Publication Date
- 2026-10-01
Smart Images
Figure KR2026004888_01102026_PF_FP_ABST
Abstract
Description
Method and apparatus for controlling the collection and transmission of terminal data in a wireless communication system
[0001] The present disclosure relates to a wireless communication system. More specifically, the present disclosure relates to a method and apparatus for controlling the collection and transmission of terminal data in a wireless communication system.
[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 frequency bands below 6 GHz ('Sub 6 GHz'), such as 3.5 gigahertz (3.5 GHz), but also in ultra-high frequency bands called millimeter waves (mmWave), such as 28 GHz and 39 GHz ('Above 6 GHz'). In addition, for 6G mobile communication technology, which is referred to as a system beyond 5G, implementation in the terahertz (THX) band (e.g., the 3 terahertz band at 95 GHz) is being considered to achieve transmission speeds 50 times faster and ultra-low latency reduced to one-tenth compared to 5G mobile communication technology.
[0003] In the early stages of 5G mobile communication technology, aiming to satisfy service support and performance requirements for enhanced Mobile BroadBand (eMBB), Ultra-Reliable Low-Latency Communications (URLLC), and massive Machine-Type Communications (mMTC), technologies such as beamforming and Massive MIMO to mitigate path loss and increase transmission distance in ultra-high frequency bands, support for various numerologies (such as the operation of multiple subcarrier spacings) and dynamic operation of slot formats for the efficient utilization of ultra-high frequency resources, initial access techniques to support multi-beam transmission and broadband, definition and operation of Band-Width Parts (BWP), Low Density Parity Check (LDPC) codes for high-volume data transmission, new channel coding methods such as Polar Codes for the reliable transmission of control information, and L2 pre-processing (L2 Standardization has been carried out for pre-processing, network slicing which provides a dedicated network specialized for specific services, and other methods.
[0004] Currently, discussions are underway to improve and enhance the performance of the initial 5G mobile communication technology, taking into account the services that the 5G mobile communication technology was intended to support. Additionally, standardization of the physical layer is in progress for technologies such as V2X (Vehicle-to-Everything), which helps autonomous vehicles make driving decisions and enhance user convenience based on their own location and status information transmitted by the vehicle; NR-U (New Radio Unlicensed), which aims for system operation in unlicensed bands to comply with various regulatory requirements; NR terminal low power consumption technology (UE Power Saving); Non-Terrestrial Network (NTN), which is direct terminal-satellite communication for securing coverage in areas where communication with the terrestrial network is impossible; and positioning.
[0005] In addition, standardization is underway in the field of wireless interface architecture / protocols for technologies such as the Industrial Internet of Things (IIoT) to support new services through linkage and convergence with other industries, Integrated Access and Backhaul (IAB) which provides nodes to expand network service areas by integrating wireless backhaul links and access links, Mobility Enhancement including Conditional Handover and Dual Active Protocol Stack (DAPS) Handover, and 2-step Random Access (2-step RACH for NR) which simplifies random access procedures. Standardization is also underway in the field of system architecture / services for 5G baseline architectures (e.g., Service based Architecture, Service based Interface) to incorporate Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technologies, and Mobile Edge Computing (MEC), which provides services based on the location of the terminal.
[0006] When such 5G mobile communication systems are commercialized, connected devices, which are increasing explosively, will be connected to communication networks. Accordingly, it is expected that there will be a need to enhance the functionality and performance of 5G mobile communication systems and to integrate the operation of connected devices. To this end, new research is planned to be conducted on 5G performance improvement and complexity reduction, support for AI services, support for metaverse services, and drone communication using eXtended Reality (XR), Artificial Intelligence (AI), and Machine Learning (ML) to efficiently support Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR).
[0007] Furthermore, the advancement of these 5G mobile communication systems encompasses multi-antenna transmission technologies such as new waveforms, Full Dimensional MIMO (FD-MIMO), array antennas, and large-scale antennas to guarantee coverage in the terahertz band of 6G mobile communication technology; metamaterial-based lenses and antennas; high-dimensional spatial multiplexing technology using Orbital Angular Momentum (OAM); and Reconfigurable Intelligent Surface (RIS) technology to improve terahertz band signal coverage; as well as full-duplex technology for enhancing frequency efficiency and system networks in 6G mobile communication technology; AI-based communication technologies that realize system optimization by utilizing satellites and Artificial Intelligence (AI) from the design stage and internalizing end-to-end AI support functions; and the realization of services of complexity exceeding the limits of terminal computing capabilities by utilizing ultra-high-performance communication and computing resources. It could serve as a foundation for the development of next-generation distributed computing technologies.
[0008] The present disclosure aims to provide an apparatus and method capable of effectively providing services in a mobile communication system.
[0009] According to one embodiment of the present disclosure, a method performed by user equipment (UE) in a wireless communication system may include: receiving a data collection request message from a data collection function (DCF) entity, comprising information on a data collection target and condition information for data collection through an access and mobility function (AMF) entity; transmitting a data collection response message to the DCF entity, comprising capability information regarding data collection through the AMF entity; collecting data based on the information on the data collection target; performing an assessment of the collected data based on the condition information within the data collection request message; receiving a data transfer request message from the DCF entity, comprising user plane information of the DCF entity for requesting transmission of the collected data on a user plane; determining whether to transmit the collected data to the DCF entity through the user plane; and transmitting a data transfer response message to the DCF entity through the AMF, comprising information indicating whether to transmit the collected data. there is.
[0010] According to one embodiment of the present disclosure, a method performed by a DCF (data collection function) entity in a wireless communication system may include: transmitting a data collection request message to a UE (user equipment) via an AMF (access and mobility function) entity, the data collection target information and condition information for data collection; receiving a data collection response message from the UE via the AMF entity, the capability information regarding data collection; transmitting a data transfer request message to the UE, the user plane information of the DCF entity for requesting transmission of the collected data on a user plane; and receiving a data transfer response message from the UE via the AMF, the data transfer response message, the data transfer response message, the data transfer response message, the information indicating whether to transmit the collected data.
[0011] According to one embodiment of the present disclosure, a UE (user equipment) comprises at least one transceiver, at least one processor communicatively coupled to the at least one transceiver, and at least one memory communicatively coupled to the at least one processor for storing instructions, wherein the instructions are executed individually or in any combination by the at least one processor, and the UE receives a data collection request message from a DCF (data collection function) entity, through an AMF (access and mobility function) entity, the data collection target information and condition information for data collection, transmits a data collection response message to the DCF entity, through the AMF entity, the data collection capability information regarding data collection, collects data based on the data collection target information, performs an assessment of the collected data based on the condition information in the data collection request message, and receives from the DCF entity a user plane for the collected data It is possible to receive a data transfer request message containing user plane information of the DCF entity for requesting transmission on the surface, determine whether to transmit the collected data to the DCF entity through the user plane, and transmit a data transfer response message containing information instructing the DCF entity whether to transmit the collected data through the AMF.
[0012] According to one embodiment of the present disclosure, a DCF (data collection function) entity comprises at least one processor and at least one memory that is communiquently coupled to the at least one processor and stores instructions, wherein the instructions are executed individually or in any combination by the at least one processor, so that the DCF entity transmits a data collection request message to a UE (user equipment) via an AMF (access and mobility function) entity, the data collection target information and condition information for data collection, receives a data collection response message from the UE via the AMF entity, the data collection capability information regarding the data collection, transmits a data transfer request message to the UE, the data transfer request message including user plane information of the DCF entity for requesting the transmission of the collected data on a user plane, and receives a data transfer response message from the UE via the AMF, the data transfer request message including information indicating whether to transmit the collected data.
[0013] Through the embodiments of the present disclosure, an apparatus and method capable of effectively providing services in a wireless communication system can be provided.
[0014] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description below.
[0015] FIG. 1 illustrates the structure of a wireless communication system according to one embodiment of the present disclosure.
[0016] FIG. 2 illustrates a flowchart of operations for controlling data collection and transmission in a wireless communication system according to one embodiment of the present disclosure.
[0017] FIG. 3 illustrates a flowchart of operations for controlling data collection and transmission in a wireless communication system according to one embodiment of the present disclosure.
[0018] FIG. 4 illustrates the structure of a terminal in a wireless communication system according to one embodiment of the present disclosure.
[0019] FIG. 5 illustrates the structure of a base station or network entity in a wireless communication system according to one embodiment of the present disclosure.
[0020] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the attached drawings.
[0021] In describing the embodiments, technical details that are well known in the art to which this disclosure belongs and are not directly related to this disclosure are omitted. This is intended to convey the essence of this disclosure more clearly without obscuring it by omitting unnecessary explanations.
[0022] For the same reason, some components in the attached drawings have been exaggerated, omitted, or schematically depicted. Additionally, the dimensions of each component do not entirely reflect their actual dimensions. Identical or corresponding components in each drawing have been assigned the same reference numbers.
[0023] The advantages and features of the present disclosure, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure is complete and to fully inform those skilled in the art of the scope of the disclosure, and the present disclosure is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components. Furthermore, in describing the present disclosure, if it is determined that a detailed description of a related function or configuration might unnecessarily obscure the essence of the present disclosure, such detailed description is omitted. Additionally, the terms described below are defined considering their functions in the present disclosure, and these may vary depending on the intentions or conventions of the user or operator. Therefore, their definitions should be based on the content throughout the specification.
[0024] Furthermore, it will be understood that each block of the flowcharts and combinations of the flowcharts can be executed by computer program instructions. Since these computer program instructions can be loaded into the processor of a general-purpose computer, a specialized computer, or other programmable data processing equipment, the instructions executed through the processor of the computer or other programmable data processing equipment create means to perform the functions described in the flowchart block(s). Since these computer program instructions can also be stored in computer-available or computer-readable memory that can be directed toward the computer or other programmable data processing equipment to implement the function in a specific way, the instructions stored in such computer-available or computer-readable memory can also produce a manufactured item containing instruction means to perform the function described in the flowchart block(s). Since computer program instructions can be loaded onto a computer or other programmable data processing equipment, instructions that perform a series of operation steps on the computer or other programmable data processing equipment to create a process executed by the computer can also provide steps for executing the functions described in the flowchart block(s).
[0025] Additionally, each block may represent a module, segment, or part of code containing one or more executable instructions for executing a specific logical function(s). It should also be noted that in some alternative execution examples, the functions mentioned in the blocks may occur out of order. For example, two blocks described in succession may actually be executed substantially simultaneously, or the blocks may sometimes be executed in reverse order according to their corresponding functions.
[0026] In this embodiment, the term "part" refers to a software or hardware component such as an FPGA (Field Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit), and the "part" performs certain roles. However, the meaning of "part" is not limited to software or hardware. The "part" may be configured to reside in an addressable storage medium or configured to run one or more processors. Thus, as an example, the "part" includes components such as software components, object-oriented software components, class components, and task components, as well as processes, functions, attributes, 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." In addition, the components and 'parts' may be implemented to utilize one or more CPUs within the device or secure multimedia card. Also, in the embodiments, 'parts' may include one or more processors.
[0027] Furthermore, the terms described below are defined in consideration of their functions in the present invention. Since these may vary depending on the intentions or practices of the user or operator, their definitions should be determined according to the content throughout this specification.
[0028] Terms used in this publication to refer to network entities, network functions and objects, messages, identification information, etc., are examples provided for the sake of convenience of explanation. Accordingly, the present invention is not limited to the terms described below, and other terms referring to objects having equivalent technical meanings may be used.
[0029] For convenience, the present invention uses terms and names defined in 5G system specifications, but is not limited by said terms and names and can be applied in the same way to systems conforming to other specifications.
[0030] The present disclosure relates to a wireless communication system. More specifically, the present disclosure relates to a method and apparatus for controlling the collection and transmission of terminal data in a wireless communication system.
[0031] The present disclosure may provide a method for controlling the collection and transmission of terminal information for training a machine learning (ML) model running on a terminal.
[0032] According to one embodiment of the present disclosure, a machine learning model running on a terminal can be applied to an operation for wireless communication performance within the terminal.
[0033] According to one embodiment of the present disclosure, a machine learning model running on a terminal may be used for the purpose of improving communication performance with a mobile communication base station or a core network or for the performance of mobile communication signal-based terminal location measurement.
[0034] The present disclosure may provide a method for collecting data from a terminal to a mobile communication core network. Specifically, the present disclosure may provide a method and apparatus for controlling the operation of transmitting collected information to a core network based on requirements for data collected from the terminal, terminal status information, terminal user input / setting information, etc.
[0035] According to one embodiment of the present disclosure, in order to perform training on a machine learning model used to improve wireless communication performance at a terminal, data collected from the terminal may be transmitted to a machine learning model training server.
[0036] According to one embodiment of the present disclosure, data collected from a terminal may be transmitted to a machine learning model training server after being collected according to network functions within the core network for the control and management of a mobile communication network operator. To support such functions, the size or data volume of the data collected by the terminal is expected to be relatively large compared to the traffic exchanged between the existing terminal and network functions within the core network. Furthermore, since the data collected by the terminal and transmitted to the network is not directly related to the user's service, the impact on the user's terminal usage may need to be minimized. For example, a function may be required for the terminal to reject or postpone data collection or transmission by considering information such as the terminal's battery status, the user's dislike regarding the exposure of terminal-related information, or the user's lack of consent.
[0037] According to one embodiment of the present disclosure, data collected by a terminal may be used for training a machine learning model running on a modem within the terminal. In this case, the purpose of using the data collected by the terminal or the related operation may be limited to a relatively very specific extent. That is, the data collected by the terminal may be effectively used for training a machine learning model when conditions are satisfied, such as data collected under specific conditions or terminal measurements satisfying specific conditions. If the data collected by the terminal does not satisfy the conditions for effective use in training a specific machine learning model as described above, the terminal may not perform collection or transmission, thereby saving the use of terminal and network resources and minimizing the impact on the user's terminal usage experience.
[0038] According to one embodiment of the present disclosure, information collected from a terminal can be transmitted to a core network while reducing the burden on the control plane to improve wireless communication performance.
[0039] FIG. 1 illustrates the structure of a wireless communication system according to one embodiment of the present disclosure.
[0040] According to one embodiment of the present disclosure, a wireless communication system may support machine learning-based operations. Additionally, the wireless communication system may include a 5G (5th generation) system.
[0041] According to one embodiment of the present disclosure, a wireless communication system may include various network functions (NF). Referring to FIG. 1, the network functions of the wireless communication system may include an access and mobility management function (AMF), a session management function (SMF), unified data management (UDM), a data network (DN) or a local part of the DN capable of local access to the data network, a user plane function (UPF), a (radio) access network ((R)AN), user equipment (UE), a Network Data Analytics Function (NWDAF), and a Data Collection Function (DCF), but the network functions of the wireless communication system are not limited to the examples described above.
[0042] According to one embodiment of the present disclosure, a terminal may perform operations such as channel state information prediction, channel state information compression, or beam management and positioning to improve wireless communication performance. The terminal may use a machine learning model to perform the aforementioned operations. For example, the terminal may decide to use a machine learning model to perform the aforementioned operations. If a plurality of machine learning models are available, the terminal may select one of the available machine learning models to perform operations for improving wireless communication performance.
[0043] According to one embodiment of the present disclosure, a terminal may receive a request for data collection and configuration information for data collection, etc., from a network device such as a RAN or DCF or NWDAF.
[0044] According to one embodiment of the present disclosure, the interior of the terminal may be implemented by dividing it into detailed devices of mobile termination (MT) and terminal equipment (TE). Of course, the detailed devices included within the terminal are not limited to MT and TE.
[0045] According to one embodiment of the present disclosure, depending on the purpose of collecting terminal data, the terminal may perform terminal measurements at a lower layer of the MT, collect the data, and then transmit the collected data to the core network. In order to transmit the collected data to the core network, the terminal may perform an operation within the terminal to provide the data collected at the lower layer of the MT to a device included in the upper layer of the MT or the TE.
[0046] According to one embodiment of the present disclosure, NFs of a wireless communication system can support the following functions.
[0047] - An AMF can provide functions for connectivity and mobility management at the UE level. A single user device (UE) can generally be connected to a single AMF.
[0048] - (R)AN can transmit and receive data wirelessly with the terminal. (R)AN can transmit and receive terminal user plane data with the UPF. In addition, (R)AN can perform access and mobility management of the terminal in conjunction with the AMF.
[0049] - DN may refer to, for example, operator services, internet access, or third-party services. DN may transmit downlink (DL) protocol data units (PDUs) to the UPF, or receive PDUs transmitted from the UE from the UPF. Local part of DN may refer to a data network that is part of the DN and has a short data transmission path where local access is possible. Additionally, local part of DN may be used to refer to a DN where edge application servers supporting edge computing services are deployed.
[0050] - The PCF can provide functions to determine policies, such as mobility management and session management, by receiving information about packet flows from the application server. Specifically, the PCF can support functions such as supporting a unified policy framework to control network behavior, providing policy rules so that control plane function(s) (e.g., AMF, SMF, etc.) can enforce policy rules, and implementing a front end to access relevant subscription information for policy decisions within the unified data repository (UDR).
[0051] - SMF can provide session management functions. If a UE has multiple sessions, each session can be managed by a different SMF.
[0052] - UDM can store user subscription data and policy data, etc. Additionally, UDM can store user consent information regarding the collection, storage, or processing of terminal-related information used for machine learning training or inference.
[0053] - The UPF can forward downlink PDUs received from the DN to the UE via the (R)AN. Additionally, the UPF can forward uplink PDUs received from the UE to the DN via the (R)AN.
[0054] - The DCF can collect terminal-related information and provide configuration information for collecting terminal-related information to the terminal or RAN. The DCF can be defined as a new network function or as a new function or device included in an existing NF (e.g., NWDAF) and deployed and operated. Additionally, the DCF can perform the function of transmitting information collected from the terminal to a network device or server that performs machine learning. Furthermore, the DCF can perform a review and analysis of the information collected from the terminal before transmitting it to a machine learning device.
[0055] The functions of the NFs of the aforementioned wireless communication system are merely one example, and the functions of the NFs are not limited to the examples described above.
[0056] FIG. 2 illustrates a flowchart of operations for controlling data collection and transmission in a wireless communication system according to one embodiment of the present disclosure.
[0057] According to one embodiment of the present disclosure, in step 0, the DCF may receive a data collection request message from a training server. Alternatively, the DCF may independently make a determination regarding the necessity of data collection.
[0058] According to one embodiment of the present disclosure, in step 1, the DCF may transmit a data collection request message to the AMF for training a machine learning model. The data collection request message transmitted by the DCF to the AMF may include at least one of the following information.
[0059] - Data collection target information: Data collection target information may include at least one of use case information that indicates the purpose of terminal data collection (information such as beam management, CSI prediction, positioning, etc.), target ML model information for collecting data and performing training, or a list of information that the terminal must collect and transmit.
[0060] - Data collection binding ID: The data collection binding ID may include at least one of the following: data collected by the terminal, data received by the DCF, or information that can be used to map the terminal and the session or connection created by the terminal to each other.
[0061] - Area of interest: The Area of interest may include information regarding the area where the terminal must perform measurements and collect data. The Area of interest may vary depending on the RAN node or base station deployment information, which may differ by region.
[0062] - Time window: The time window may include information regarding the time at which the terminal must perform a measurement and collect data.
[0063] - Target frequency band information: The target frequency band information may include information indicating that the terminal must perform measurements and collect data for a specific frequency band. The terminal may be configured to collect data by performing measurements with a base station when using the frequency band indicated by the target frequency band information, and to provide the collected data.
[0064] - Quality indicator threshold info: Quality indicator threshold info can be defined as a value representing the minimum quality level of collected data, which can be expressed as the accuracy, reliability, or confidence level of the data measured and collected by the terminal. When quality indicator threshold info is provided to the terminal, the terminal can calculate and evaluate at least one of the accuracy, reliability, or confidence level for the measured and collected data. Additionally, the terminal can compare the calculated and evaluated result with the quality threshold. If, according to the data collection rules or data transmission rules set in the terminal, the accuracy, reliability, or confidence level of the data measured and collected by the terminal is smaller than the threshold value included in the quality indicator threshold info provided by the DCF, the terminal may decide not to transmit the measured and collected data to the DCF.
[0065] According to one embodiment of the present disclosure, in step 2-1, the AMF can transmit a UE data collection request message received from the DCF to the RAN and the terminal.
[0066] According to one embodiment of the present disclosure, in step 2-2, the RAN and the terminal may transmit a UE data collection response message to the AMF, including whether the UE data collection operation can be successfully performed.
[0067] According to one embodiment of the present disclosure, in relation to steps 2-1 to 2-2, at least one of the following operations may be performed.
[0068] - The RAN can determine whether it can successfully configure the terminal for the information to be collected and perform data collection (whether it can perform UE measurement configuration) by checking the information included in the UE data collection request received from the AMF.
[0069] - The terminal can determine whether it can successfully perform measurement and collection of the target information by checking the information included in the UE data collection request message received through the AMF.
[0070] - The terminal can store information included in a UE data collection request message received from the DCF via the AMF in correspondence with a data collection binding ID. Additionally, the terminal can store information obtained by performing UE measurements through interaction with a RAN node in correspondence with a data collection binding ID.
[0071] According to one embodiment of the present disclosure, in step 3, the terminal may perform UE measurement based on configuration information received from a RAN node. The terminal may store the result obtained through the UE measurement in correspondence with a Data collection binding ID.
[0072] According to one embodiment of the present disclosure, in step 4, the terminal can perform an assessment of the collected data. If the terminal receives at least one value among Area of interest, time window, target frequency band information, target Radio access technology or Radio access type information, and quality indicator threshold info, the terminal can monitor in real time whether a terminal measurement corresponding to the information is performed and whether data corresponding to the condition is collected.
[0073] According to one embodiment, when quality indicator threshold info is provided to a terminal, even if the terminal has measured and collected data corresponding to the Area of interest, time window, target frequency band information, target radio access technology, or radio access type information, it must perform an evaluation of the accuracy, reliability, or confidence level indicated by the quality indicator threshold info of the collected data on the measured / collected data. If the data measured / collected by the terminal falls below the quality indicator threshold info, the terminal may decide to discard the measured / collected data and not transmit it to the DCF according to the terminal settings. Alternatively, according to one embodiment, when quality indicator threshold information is provided, the terminal may provide a quality indicator for the measured / collected data (determining a value that can be expressed as at least one of the indicated accuracy, reliability, or confidence level) to the DCF along with the data transmission.
[0074] According to one embodiment of the present disclosure, in step 5, the terminal may complete a preparation step for transmitting data. The terminal may complete the preparation step for transmitting data by storing the data that has been measured and collected, and by completing an assessment of the data to determine that the data that meets the conditions requested by the DCF has been collected. For example, the terminal may store the data that has been collected and evaluated in a storage device outside or inside the modem, along with a Data collection binding ID and an assessment result (e.g., quality indicator information). Subsequently, the terminal may wait for a data transmission command from the core network or the base station.
[0075] According to one embodiment of the present disclosure, in step 6, the DCF may transmit a terminal data transfer request or command (UE data transfer request / command) through the AMF to the terminal to which the DCF has requested data collection. The AMF may transmit the terminal data transfer request or command received from the DCF to the terminal. The terminal data transfer request or command transmitted by the DCF through the AMF may include at least one of the following additional information.
[0076] - Data transfer type
[0077] -- Immediate transfer request / command
[0078] -- Deferred data transfer request / command with condition: quality indicator threshold
[0079] -- Transfer request with Time Window
[0080] - DCF address information (e.g., information for connecting the DCF and the user plane, FQDN or IP address)
[0081] - Security information required to create a secure connection between the DCF and the terminal (may include security protocol information, etc.)
[0082] - DNN / S-NSSAI Information
[0083] - Data collection / transfer binding ID information
[0084] According to one embodiment of the present disclosure, in step 7, the terminal can determine whether to transmit data that is measured, collected, and stored in correspondence with a data collection binding ID included in a terminal data transmission request or command received through the AMF.
[0085] According to one embodiment of the present disclosure, in step 7, the terminal may decide not to perform data transmission based on the terminal user or subscriber's permission or preference for data transmission according to a terminal policy set in the terminal, even if the collected data corresponding to the data collection binding ID described in step 4 meets the terminal collected data conditions received from the DCF. The terminal user or subscriber's permission or preference for data transmission may be referred to as user preference, user input, or user consent, but the specific names are not limited to the examples described above.
[0086] According to one embodiment of the present disclosure, in step 7, the terminal may decide not to perform data transmission based on the terminal battery level according to a terminal policy set in the terminal, even if the collected data corresponding to the data collection binding ID described in step 4 meets the terminal collected data conditions received from the DCF. For example, the terminal may decide not to transmit data or to postpone the transmission of data when the terminal battery level is low according to a terminal policy set in the terminal.
[0087] According to one embodiment of the present disclosure, in step 8, the terminal may send a response message to the DCF regarding the data transfer request / command through the AMF as follows, depending on the decision regarding whether to transmit data in step 7 described above.
[0088] According to one embodiment of the present disclosure, in step 8, if the terminal decides not to perform data transmission based on the terminal user or subscriber's permission or preference for data transmission in step 7 described above, the terminal may transmit a response message including an indicator indicating rejection to the data transfer request / command, a reject cause (not-granted by subscriber / user), and a data collection / transfer binding ID.
[0089] According to one embodiment of the present disclosure, in step 8, if the terminal decides not to perform data transfer based on the state of the terminal's battery or available resources in the aforementioned step 7, the terminal may transmit a response message including an indicator indicating rejection to the data transfer request / command, a reject cause (UE resource issue), and a data collection / transfer binding ID. Alternatively, in this case, if the terminal decides to delay data transfer based on the state of the terminal's battery or available resources in the aforementioned step 7, the terminal may transmit a response message including at least one of an indicator indicating deferred data transfer, a reject cause (deferred transfer due to UE resource issue), or a data collection / transfer binding ID to the data transfer request / command.
[0090] According to one embodiment of the present disclosure, in step 9, the AMF may transmit a response message to the DCF regarding a data transfer request / command received from the terminal. The DCF may determine whether to continue performing a data transfer operation for the terminal by considering the information within the response message regarding the data transfer request / command received through the AMF. Additionally, the DCF may release data collection / transfer context information related to the terminal. For example, the DCF may perform a deletion operation for the resource and context corresponding to the data collection / transfer binding ID included in the response message for the data transfer request / command received from the terminal.
[0091] According to one embodiment of the present disclosure, in step 10, the terminal can perform processing on the collected data.
[0092] According to one embodiment of the present disclosure, in step 10, if the terminal decides not to perform data transmission in step 7 described above, the terminal may perform deletion of collected data within the terminal associated with or corresponding to the data collection / transfer binding ID for which data transmission is decided not to be performed. If an UP connection for transmitting data collected by the terminal is established between the terminal and the DCF, and there are no terminal data measurement and collection cases corresponding to a data collection / transfer binding ID other than the data collection / transfer binding ID for the data for which transmission is decided not to be performed (i.e., there are no other data collection / transfer binding IDs assigned to the terminal), the terminal may decide to release the session or connection connected to the DCF as well. For example, the terminal may activate a DCF UP connection release timer.
[0093] FIG. 3 illustrates a flowchart of operations for controlling data collection and transmission in a wireless communication system according to one embodiment of the present disclosure.
[0094] According to one embodiment of the present disclosure, in step 1, the DCF may transmit a data collection request message to the AMF for training a machine learning model. The data collection request message transmitted by the DCF to the AMF may include at least one of the following information.
[0095] - Data collection target information: Data collection target information may include at least one of use case information that indicates the purpose of terminal data collection (information such as beam management, CSI prediction, positioning, etc.), target ML model information for collecting data and performing training, or a list of information that the terminal must collect and transmit.
[0096] - Data collection binding ID: The data collection binding ID may include at least one of the following: data collected by the terminal, data received by the DCF, or information that can be used to map the terminal and the session or connection created by the terminal to each other.
[0097] - Area of interest: The Area of interest may include information regarding the area where the terminal must perform measurements and collect data. The Area of interest may vary depending on the RAN node or base station deployment information, which may differ by region.
[0098] - Time window: The time window may include information regarding the time at which the terminal collects data by performing a measurement.
[0099] - Target frequency band information: The target frequency band information may include information indicating a specific frequency band to which the terminal is to perform measurements and collect data. The terminal may be configured to collect data by performing measurements with a base station when using the frequency band indicated by the target frequency band information, and to provide the collected data.
[0100] - Quality indicator threshold info: Quality indicator threshold info can be defined as a value representing the minimum quality level of collected data, which can be expressed as the accuracy, reliability, or confidence level of the data measured and collected by the terminal. When quality indicator threshold info is provided to the terminal, the terminal can calculate and evaluate at least one of the accuracy, reliability, or confidence level for the measured and collected data. Additionally, the terminal can compare the calculated and evaluated result with the quality threshold. If, according to the data collection rules or data transmission rules set in the terminal, the accuracy, reliability, or confidence level of the data measured and collected by the terminal is smaller than the threshold value included in the quality indicator threshold info provided by the DCF, the terminal may decide not to transmit the measured and collected data to the DCF.
[0101] According to one embodiment of the present disclosure, in step 2-1, the AMF can transmit a UE data collection request message received from the DCF to the RAN and the terminal.
[0102] According to one embodiment of the present disclosure, in step 2-2, the RAN and the terminal may transmit a UE data collection response message to the AMF, including whether the UE data collection operation can be successfully performed.
[0103] According to one embodiment of the present disclosure, in relation to steps 2-1 to 2-2, at least one of the following operations may be performed.
[0104] - The RAN can determine whether it can successfully configure the terminal for the information to be collected and perform data collection (whether it can perform UE measurement configuration) by checking the information included in the UE data collection request received from the AMF.
[0105] - The terminal can determine whether it can successfully perform measurement and collection of the target information by checking the information included in the UE data collection request message received through the AMF.
[0106] - The terminal can store information included in a UE data collection request message received from the DCF via the AMF in correspondence with a data collection binding ID. Additionally, the terminal can store information obtained by performing UE measurements through interaction with a RAN node in correspondence with a data collection binding ID.
[0107] According to one embodiment of the present disclosure, in step 3, the terminal may perform UE measurement based on configuration information received from a RAN node. The terminal may store the result obtained through the UE measurement in correspondence with a Data collection binding ID.
[0108] According to one embodiment of the present disclosure, in step 4, the terminal may perform an assessment of the collected data. When the terminal receives at least one value among Area of interest, time window, target frequency band information, target Radio access technology or Radio access type information, or quality indicator threshold info, the terminal may perform a terminal measurement in real time to satisfy a condition corresponding to the received information. Additionally, the terminal may monitor whether it is collecting data that meets the condition.
[0109] According to one embodiment, when quality indicator threshold info is provided to a terminal, even if the terminal measures and collects data corresponding to Area of interest, time window, target frequency band information, target radio access technology, or radio access type information, the terminal may perform an evaluation of the accuracy, reliability, or confidence level indicated by the quality indicator threshold info for the measured / collected data. If the data measured / collected by the terminal falls short of the quality indicator threshold info, the terminal may discard the measured and collected data according to the terminal settings. In this case, the terminal may decide not to transmit the measured and collected data to the DCF. Alternatively, according to one embodiment, when quality indicator threshold information is provided, the terminal may determine a quality indicator for the measured and collected data. The quality indicator may refer to a value that can be expressed as at least one of accuracy, reliability, or confidence level. The terminal may transmit the determined quality indicator along with the data when transmitting it to the DCF.
[0110] According to one embodiment of the present disclosure, in step 5, the terminal may complete a preparation step for transmitting data. The terminal may complete the preparation step for transmitting data by storing the data that has been measured and collected, and by completing an assessment of the data to determine that the data that meets the conditions requested by the DCF has been collected. For example, the terminal may store the data that has been collected and evaluated in a storage device outside or inside the modem, along with a Data collection binding ID and an assessment result (e.g., quality indicator information). Subsequently, the terminal may wait for a data transmission command from the core network or the base station.
[0111] According to one embodiment of the present disclosure, in step 6, the DCF may transmit a terminal data transfer request or command (UE data transfer request / command) through the AMF to the terminal to which the DCF has requested data collection. The AMF may transmit the terminal data transfer request or command received from the DCF to the terminal. The terminal data transfer request or command transmitted by the DCF through the AMF may include at least one of the following additional information.
[0112] - Data transfer type
[0113] -- Immediate transfer request / command
[0114] -- Deferred data transfer request / command with condition: quality indicator threshold
[0115] -- Transfer request with Time Window
[0116] - DCF address information (e.g., information for connecting the DCF and the user plane, FQDN or IP address)
[0117] - Security information required to create a secure connection between the DCF and the terminal (may include security protocol information, etc.)
[0118] - DNN / S-NSSAI Information
[0119] - Data collection / transfer binding ID information
[0120] According to one embodiment of the present disclosure, in step 7, the terminal can determine whether to transmit data that is measured, collected, and stored in correspondence with a data collection binding ID included in a terminal data transmission request or command received through the AMF.
[0121] According to one embodiment of the present disclosure, in step 7, the terminal may decide to finally perform data transmission based on the terminal user or subscriber's permission or preference for data transmission according to the terminal policy set in the terminal, and the collected data corresponding to the data collection / transfer binding ID described above with reference to step 4 satisfies the terminal collected data condition received from the DCF. The terminal user or subscriber's permission or preference for data transmission may be referred to as user preference, user input, or user consent, but the specific names are not limited to the examples described above.
[0122] According to one embodiment of the present disclosure, in step 8, the terminal may send a response message to the DCF regarding the data transfer request / command through the AMF as follows, depending on the determination of whether to transmit data in step 7 described above.
[0123] According to one embodiment of the present disclosure, in step 8, if the terminal decides to perform data transmission based on the terminal user or subscriber's permission or preference for data transmission in step 7 described above, the terminal may transmit a response message including an indicator indicating acceptance or acknowledgment for a data transfer request / command and a data collection / transfer binding ID.
[0124] According to one embodiment of the present disclosure, in step 9, the AMF may transmit a response message to the DCF regarding a data transfer request / command received from the terminal. The DCF may determine that a data transfer operation for the terminal will be performed by considering the information within the response message regarding the data transfer request / command received through the AMF.
[0125] According to one embodiment of the present disclosure, in step 10, the terminal can establish a connection to transmit collected data to the DCF and transmit the collected data.
[0126] According to one embodiment of the present disclosure, in step 10, the terminal may establish a PDU session using DCF address information to establish a user plane connection for transmitting collected data to the DCF, and may create a user plane connection with the DCF using the established PDU session. Additionally, the terminal may transmit collected data to the DCF using the user plane connection created between the DCF and the terminal.
[0127] According to one embodiment of the present disclosure, in step 11, the terminal may decide not to perform data transmission based on the remaining battery level of the terminal, depending on a change in terminal policy or terminal status information set in the terminal. For example, the terminal may decide to stop data transmission or postpone data transmission if the remaining battery level of the terminal falls below a certain threshold value after data transmission has started, depending on a terminal policy set in the terminal.
[0128] According to one embodiment of the present disclosure, in step 11, the terminal may decide to stop or cancel data transmission based on changes in whether the terminal user or subscriber allows transmission or preference after the start of data transmission. The terminal user or subscriber's permission or preference for data transmission may be referred to as user preference, user input, or user consent, but specific names are not limited to the examples described above.
[0129] According to one embodiment of the present disclosure, in step 12, the terminal may transmit to the AMF a message including an indicator indicating that the terminal user or subscriber has decided to stop data transmission as the transmission permission or preference of the terminal user or subscriber changes after the start of data transmission.
[0130] According to one embodiment of the present disclosure, in step 12, the terminal may transmit together an indicator indicating that it has decided to stop data transmission based on a change in whether the terminal user or subscriber allows transmission or preference after the start of data transmission, a data collection / transfer ID, and information indicating the reason for stopping data transmission (e.g., data transfer cancellation cause value / code). The information indicating the reason for stopping data transmission may include at least one of a change in user preference, user input, or user consent status, or a code that may indicate at least one of these.
[0131] According to one embodiment of the present disclosure, in step 13, the AMF may transmit to the DCF an indicator indicating that it has decided to stop the data transmission received from the terminal, a data collection / transfer ID, and information indicating the reason for stopping the data transmission (e.g., data transfer cancellation cause value / code).
[0132] According to one embodiment of the present disclosure, in step 14, the terminal can perform processing on the collected data that was being transmitted.
[0133] According to one embodiment of the present disclosure, in step 14, if the terminal decides to stop data transmission in step 11 described above, the terminal may perform deletion of collected data within the terminal associated with or corresponding to the data collection / transfer binding ID for which data transmission was decided to be stopped. If an UP connection for transmitting data collected by the terminal is established between the terminal and the DCF, and there are no terminal data measurement and collection cases corresponding to a data collection / transfer binding ID other than the data collection / transfer binding ID for the data for which transmission was decided not to be performed (i.e., there are no other data collection / transfer binding IDs assigned to the terminal), the terminal may decide to release the session or connection connected to the DCF as well. For example, the terminal may activate a DCF UP connection release timer.
[0134] FIG. 4 illustrates the structure of a terminal (user equipment, UE) in a wireless communication system according to embodiments of the present disclosure. The terminal of FIG. 4 may correspond to the terminal of FIG. 1.
[0135] Referring to FIG. 4, a terminal according to one embodiment may include a transceiver (410), a memory (420), and a processor (430). The transceiver (410), memory (420), and processor (430) of the UE may operate according to the communication method of the terminal described above. However, the components of the terminal are not limited thereto. For example, the terminal may include more or fewer components than those described above. Additionally, the processor (430), the transceiver (410), and the memory (420) may be implemented as a single chip. Additionally, the processor (430) may include at least one processor.
[0136] The transceiver (410) collectively refers to a UE receiver and a UE transmitter and can transmit and receive signals with a base station or network entity. The signals transmitted and received with the base station or network entity may include control information and data. The transceiver (410) may include an RF transmitter for up-converting and amplifying the frequency of a transmitted signal and an RF receiver for low-noise amplification and down-converting the frequency of a received signal. However, this is merely an example of the transceiver (410), and the components of the transceiver (410) are not limited to an RF transmitter and an RF receiver.
[0137] Additionally, the transceiver (410) can receive a signal through a wireless channel and output it to a processor (430), and transmit the signal output from the processor (430) through a wireless channel. The memory (420) can store programs and data required for the operation of the UE. Additionally, the memory (420) can store control information or data included in a signal acquired by the UE. The memory (420) may be a storage medium or a combination of storage media such as read-only memory (ROM), random access memory (RAM), a hard disk, CD-ROM, and DVD.
[0138] The processor (430) can control a series of processes to operate the terminal. For example, the transceiver (410) can receive a data signal including a control signal transmitted by a base station or network entity, and the processor (430) can determine the result of receiving the control signal and data signal transmitted by the base station or network entity.
[0139] FIG. 5 illustrates the structure of a base station or network entity in a wireless communication system according to embodiments of the present disclosure. The network entity of FIG. 5 may refer to a configuration related to the network function of FIG. 1.
[0140] Referring to FIG. 5, a base station or network entity according to one embodiment may include a transceiver (510), a memory (520), and a processor (530). The transceiver (510), memory (520), and processor (530) of the base station or network entity may operate according to the communication method of the base station or network entity described above. However, the components of the base station or network entity are not limited thereto. For example, the base station or network entity may include more or fewer components than the components described above. Additionally, the processor (530), the transceiver (510), and the memory (520) may be implemented as a single chip. Additionally, the processor (530) may include at least one processor.
[0141] The transceiver (510) collectively refers to a receiver of a base station or network entity and a transmitter of a base station or network entity, and the transceiver (510) can transmit and receive signals with a terminal (UE). The signals transmitted and received with the terminal may include control information and data. The transceiver (510) may include an RF transmitter for up-converting and amplifying the frequency of a transmitted signal and an RF receiver for low-noise amplification and down-converting the frequency of a received signal. However, this is merely an example of the transceiver (510), and the components of the transceiver (510) are not limited to an RF transmitter and an RF receiver. Additionally, the transceiver (510) can receive a signal through a wireless channel and output it to a processor (530), and transmit the signal output from the processor (530) through a wireless channel.
[0142] The memory (520) can store programs and data necessary for the operation of a base station or network entity. Additionally, the memory (520) can store control information or data included in a signal acquired by the base station or network entity. The memory (520) may be a storage medium or a combination of storage media, such as read-only memory (ROM), random access memory (RAM), a hard disk, CD-ROM, or DVD.
[0143] The processor (530) can control a series of processes so that the base station or network entity operates as described above. For example, the transceiver (510) can receive a data signal including a control signal transmitted by a terminal, and the processor (530) can determine the result of receiving the control signal and the data signal transmitted by the terminal.
Claims
1. A method performed by user equipment (UE) in a wireless communication system, wherein the method comprises: A step of receiving a data collection request message from a DCF (data collection function) entity, through an AMF (access and mobility function) entity, the message including information on the data collection target and condition information for data collection; A step of transmitting a data collection response message to the DCF entity, which includes capability information regarding the data collection through the AMF entity; A step of collecting data based on the above-mentioned collection target information; A step of performing an assessment of the collected data based on the condition information within the data collection request message; A step of receiving a data transfer request message from the above DCF entity, the message including user plane information of the DCF entity for requesting transmission of the collected data on the user plane; A step of determining whether to transmit the collected data to the DCF entity through the user plane; and A method comprising the step of transmitting a data transmission response message through the AMF to the DCF entity, the message including information indicating whether to transmit the collected data.
2. In Paragraph 1, The above data collection target information includes information indicating at least one of a region, time, or frequency band for the data to be collected, and A method in which the step of collecting the above data includes the step of monitoring whether the collected data is data indicated by the data collection target information while the UE performs the data collection.
3. In Paragraph 2, The above condition information includes information indicating the minimum quality threshold required for the collected data, and The step of evaluating the collected data above is: A step of comparing the accuracy or reliability evaluated for the collected data with the minimum quality threshold; and A method comprising the step of determining whether to destroy the collected data based on the above comparison result.
4. In Paragraph 1, A method comprising at least one of the following: the above user plane information, which includes IP (internet protocol) address information of the DCF entity for connection with the DCF entity on the user plane, DNN (data network name) information, S-NSSAI (single network slice selection assistance information), or security information for creating a secure connection between the DCF entity and the UE.
5. In Paragraph 1, A method in which the above data transmission request message further includes information instructing the transmission of the collected data within a predetermined time window.
6. In Paragraph 1, A method in which the step of determining whether to transmit the collected data is to determine whether to transmit the collected data based on at least one of user consent to the requested data transmission, the battery level status of the UE, or the status of a wireless resource scheduled for the UE.
7. In claim 1, the method is: If it is determined not to transmit the collected data, the method further includes the step of deleting the collected data, and A method in which the above data transmission response message includes an indicator indicating a rejection or delay of the above data transmission, information regarding the cause of the rejection or delay, and the binding ID.
8. In Paragraph 1, A method in which, when it is determined to transmit the collected data, the data transmission response message comprises an indicator indicating acceptance of the data transmission and the binding ID.
9. In claim 1, the method is: If it is determined to transmit the collected data, the method further includes the step of transmitting the collected data to the DCF entity through a connection on the user plane. A method in which data transmitted to the above-mentioned DCF entity is provided to a training server for training a machine learning model to improve wireless communication performance.
10. In claim 9, the above method is: A step of identifying that the interruption condition for the transmission of the above-mentioned collected data is satisfied; A step of transmitting a data transmission interruption message to the DCF entity, the message including an indicator instructing the interruption of the transmission of the collected data via the AMF, information regarding the cause of interruption corresponding to the interruption condition, and the binding ID; and It further includes the step of deleting the collected data above, and A method in which the interruption condition is identified based on at least one of a user input requesting interruption of the transmission of the collected data, a decrease in the battery level of the UE, or a decrease in the wireless resources scheduled for the UE.
11. A method performed by a DCF (data collection function) entity in a wireless communication system, wherein the method is: A step of transmitting a data collection request message to a UE (user equipment) via an AMF (access and mobility function) entity, the message including information on the data collection target and condition information for data collection; A step of receiving a data collection response message from the above UE, which includes capability information regarding the data collection through the above AMF entity; A step of transmitting a data transfer request message to the above UE, the message including user plane information of the above DCF entity for requesting transmission of the above collected data on the user plane; and A method comprising the step of receiving, via the AMF, a data transmission response message from the UE that includes information indicating whether to transmit the collected data.
12. In claim 11, the method is: A step of receiving the collected data from the above UE through a connection on the user plane; and A method further comprising the step of transmitting the collected data to a server that performs training on a machine learning model to improve wireless communication performance.
13. Regarding UE (user equipment): At least one transceiver; At least one processor communicatively coupled to the above at least one transceiver; and It includes at least one memory that is communicationally coupled to the above at least one processor and stores instructions, and The above instructions are executed individually or in any combination by the above at least one processor, so that the UE: Receive a data collection request message from a DCF (data collection function) entity, including information on the data collection target and condition information for data collection, through an AMF (access and mobility function) entity, and Sending a data collection response message containing capability information regarding the data collection to the above DCF entity through the above AMF entity, and Collect data based on the above-mentioned collection target information, and Based on the condition information within the data collection request message, an assessment of the collected data is performed, Receiving a data transfer request message from the above DCF entity, the message including user plane information of the DCF entity for requesting transmission of the collected data on the user plane, and Determining whether to transmit the collected data to the DCF entity through the user plane, and A UE that causes the DCF entity to transmit a data transmission response message via the AMF, the message including information indicating whether to transmit the collected data.
14. For DCF (data collection function) entities: At least one processor; and It includes at least one memory that is communicationally coupled to the above at least one processor and stores instructions, and The above instructions are executed individually or in any combination by the above at least one processor, so that the above DCF entity: Sending a data collection request message to the UE (user equipment) via an AMF (access and mobility function) entity, the message including information on the data collection target and condition information for data collection, and From the above UE, receive a data collection response message containing capability information regarding the data collection through the above AMF entity, and Sending a data transfer request message to the above UE, the message including user plane information of the above DCF entity for requesting transmission of the above collected data on the user plane, and A DCF entity that receives, via the AMF, a data transmission response message from the UE that includes information indicating whether to transmit the collected data.
15. In Clause 14, the above commands are that the DCF entity: Receive the collected data from the above UE through a connection on the user plane, and A DCF entity that transmits the collected data to a server performing training on a machine learning model to improve wireless communication performance.