Group selection method

Abstract

One disclosure of the present specification provides a method for user equipment (UE) performing communication. The method comprises the steps in which: an NEF receives an assistant information request for a specific service from an AF, wherein the assistant information request includes a condition for the specific service; the NEF obtains analytics for a plurality of candidate groups from an NWDAF on the basis of the assistant information request, wherein the plurality of candidate groups are composed of UE, and each of the plurality of candidate groups satisfy the condition; and the NEF transmits group information to the AF on the basis of the analytics, wherein the group information includes priority information for each of the plurality of candidate groups.

Description

How to select a group

[0001] This specification relates to mobile communications.

[0002] 3GPP (3rd Generation Partnership Project) LTE (Long-Term Evolution) is a technology designed to enable high-speed packet communications. Numerous approaches have been proposed to achieve LTE's goals of reducing costs for users and operators, improving service quality, expanding coverage, and increasing system capacity. 3GPP LTE's high-level requirements include reduced cost per bit, improved service availability, flexible use of frequency bands, a simple architecture, open interfaces, and adequate power consumption for terminals.

[0003] The International Telecommunication Union (ITU) and 3GPP have begun work on developing requirements and specifications for new radio (NR) systems. 3GPP must identify and develop the technical components necessary to successfully standardize NR in a timely manner, meeting both urgent market needs and the longer-term requirements outlined by the ITU-R (ITU radio communication sector) International Mobile Telecommunications (IMT)-2020 process. NR must also be able to utilize any spectrum band up to at least 100 GHz, ensuring that it remains available for wireless communications well into the future.

[0004] NR aims to be a single technology framework that addresses all deployment scenarios, usage scenarios, and requirements, including enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable and low latency communications (URLLC). NR must be inherently forward-compatible.

[0005] Based on analytics about the group, the group is selected.

[0006] Figure 1 illustrates an example of a communication system to which the implementation of this specification is applied.

[0007] Figure 2 illustrates an example of a wireless device to which the implementation of the present specification is applied.

[0008] Figure 3 shows an example of a UE to which the implementation of this specification is applied.

[0009] Figure 4 is a structural diagram of a next-generation mobile communications network.

[0010] Figure 5 shows an example of a 5G system structure to which the implementation of this specification is applied.

[0011] Figure 6 illustrates an example of a procedure according to an embodiment of the present specification.

[0012] Figure 7 illustrates the NEF procedure according to the disclosure of this specification.

[0013] Figure 8 illustrates the procedure of AF according to the disclosure of this specification.

[0014] The following techniques, devices, and systems can be applied to various wireless multiple access systems. Examples of multiple access systems include code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and multicarrier frequency division multiple access (MC-FDMA) systems. CDMA can be implemented via wireless technologies such as universal terrestrial radio access (UTRA) or CDMA2000. TDMA can be implemented via wireless technologies such as global system for mobile communications (GSM), general packet radio service (GPRS), or enhanced data rates for GSM evolution (EDGE). OFDMA can be implemented using wireless technologies such as IEEE (Institute of Electrical and Electronics Engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or E-UTRA (evolved UTRA). UTRA is part of UMTS (universal mobile telecommunications system). 3GPP (3rd generation partnership project) LTE (long-term evolution) is part of E-UMTS (evolved UMTS) that uses E-UTRA.3GPP LTE uses OFDMA in the downlink (DL) and SC-FDMA in the uplink (UL). Evolution of 3GPP LTE includes LTE-A (advanced), LTE-A Pro, and / or 5G NR (new radio).

[0015] For convenience of explanation, the implementation of this specification is primarily described in relation to a 3GPP-based wireless communication system. However, the technical features of this specification are not limited thereto. For example, the following detailed description is provided based on a mobile communication system corresponding to a 3GPP-based wireless communication system. However, aspects of this specification that are not limited to a 3GPP-based wireless communication system can be applied to other mobile communication systems.

[0016] For terms and technologies used in this specification that are not specifically described, reference may be made to wireless communication standard documents published prior to this specification.

[0017] As used herein, "A or B" can mean "only A," "only B," or "both A and B." Alternatively, as used herein, "A or B" can be interpreted as "A and / or B." For example, as used herein, "A, B or C" can mean "only A," "only B," "only C," or "any combination of A, B and C."

[0018] As used herein, a slash ( / ) or a comma can mean "and / or." For example, "A / B" can mean "A and / or B." Accordingly, "A / B" can mean "only A," "only B," or "both A and B." For example, "A, B, C" can mean "A, B, or C."

[0019] In this specification, “at least one of A and B” may mean “only A,” “only B,” or “both A and B.” Additionally, in this specification, the expressions “at least one of A or B” or “at least one of A and / or B” may be interpreted identically to “at least one of A and B.”

[0020] Additionally, in this specification, “at least one of A, B and C” can mean “only A”, “only B”, “only C”, or “any combination of A, B and C”. Additionally, “at least one of A, B or C” or “at least one of A, B and / or C” can mean “at least one of A, B and C”.

[0021] Additionally, parentheses used herein may mean "for example." Specifically, when indicated as "control information (PDCCH)", "PDCCH" may be proposed as an example of "control information." In other words, "control information" in this specification is not limited to "PDCCH," and "PDCCH" may be proposed as an example of "control information." Furthermore, even when indicated as "control information (i.e., PDCCH)", "PDCCH" may be proposed as an example of "control information."

[0022] Technical features individually described in a single drawing in this specification may be implemented individually or simultaneously.

[0023] Although not limited thereto, the various descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein may be applied to various fields requiring wireless communication and / or connectivity between devices (e.g., 5G).

[0024] Hereinafter, the present specification will be described in more detail with reference to the drawings. In the following drawings and / or description, the same reference numbers may refer to the same or corresponding hardware blocks, software blocks, and / or functional blocks, unless otherwise indicated.

[0025] Figure 1 illustrates an example of a communication system to which the implementation of this specification is applied.

[0026] The 5G usage scenario shown in FIG. 1 is only an example, and the technical features of this specification can be applied to other 5G usage scenarios not shown in FIG. 1.

[0027] The three main requirement categories for 5G are (1) enhanced mobile broadband (eMBB), (2) massive machine type communication (mMTC), and (3) ultra-reliable and low latency communications (URLLC).

[0028] Referring to FIG. 1, a communication system (1) includes wireless devices (100a to 100f), a base station (BS; 200), and a network (300). FIG. 1 illustrates a 5G network as an example of a network of the communication system (1), but the implementation of the present disclosure is not limited to a 5G system and can be applied to future communication systems beyond the 5G system.

[0029] The base station (200) and the network (300) may be implemented as wireless devices, and a particular wireless device may operate as a base station / network node in relation to other wireless devices.

[0030] Wireless devices (100a to 100f) refer to devices that perform communication using radio access technology (RAT) (e.g., 5G NR or LTE) and may also be referred to as communication / wireless / 5G devices. Wireless devices (100a to 100f) may include, but are not limited to, robots (100a), vehicles (100b-1 and 100b-2), extended reality (XR) devices (100c), portable devices (100d), home appliances (100e), IoT devices (100f), and artificial intelligence (AI) devices / servers (400). For example, vehicles may include vehicles having wireless communication capabilities, autonomous vehicles, and vehicles capable of performing vehicle-to-vehicle communication. Vehicles may include unmanned aerial vehicles (UAVs) (e.g., drones). XR devices may include AR / VR / mixed reality (MR) devices, and may be implemented in the form of head-mounted devices (HMDs) and heads-up displays (HUDs) mounted on vehicles, televisions, smartphones, computers, wearable devices, home appliances, digital signs, vehicles, robots, etc. Portable devices may include smartphones, smart pads, wearable devices (e.g., smart watches or smart glasses), and computers (e.g., laptops). Home appliances may include TVs, refrigerators, and washing machines. IoT devices may include sensors and smart meters.

[0031] In this specification, wireless devices (100a to 100f) may be referred to as user equipment (UE). The UE may include, for example, a mobile phone, a smartphone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, a slate PC, a tablet PC, an ultrabook, a vehicle, a vehicle with autonomous driving functions, a connected car, a UAV, an AI module, a robot, an AR device, a VR device, an MR device, a holographic device, a public safety device, an MTC device, an IoT device, a medical device, a fintech device (or a financial device), a security device, a weather / environmental device, a 5G service-related device, or a 4th industrial revolution-related device.

[0032] For example, a UAV may be an aircraft that is unmanned and navigated by radio control signals.

[0033] For example, a VR device may include a device for implementing objects or backgrounds in a virtual environment. For example, an AR device may include a device that implements objects or backgrounds in a virtual world by connecting them to objects or backgrounds in the real world. For example, an MR device may include a device that implements objects or backgrounds in a virtual world by merging them with objects or backgrounds in the real world. For example, a holographic device may include a device that implements 360-degree stereoscopic images by recording and reproducing three-dimensional information using the light interference phenomenon that occurs when two laser lights, called holograms, meet.

[0034] For example, a public safety device may include an image relay device or imaging device that can be worn on the user's body.

[0035] For example, MTC devices and IoT devices may be devices that do not require direct human intervention or manipulation. Examples include smart meters, vending machines, thermometers, smart light bulbs, door locks, or various sensors.

[0036] For example, a medical device may be a device used for the purpose of diagnosing, treating, alleviating, curing, or preventing a disease. For example, a medical device may be a device used for diagnosing, treating, alleviating, or correcting an injury or damage. For example, a medical device may be a device used for the purpose of examining, replacing, or modifying a structure or function. For example, a medical device may be a device used for the purpose of regulating pregnancy. For example, a medical device may include a therapeutic device, a driving device, an (in vitro) diagnostic device, a hearing aid, or a surgical device.

[0037] For example, a security device may be a device installed to prevent potential hazards and maintain safety. For example, a security device may be a camera, closed-circuit television (CCTV), recorder, or black box.

[0038] For example, a fintech device may be a device capable of providing financial services, such as mobile payments. For example, a fintech device may include a payment device or a point-of-sale system.

[0039] For example, a weather / environment device may include a device that monitors or predicts the weather / environment.

[0040] Wireless devices (100a to 100f) can be connected to a network (300) via a base station (200). AI technology can be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) via the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, and a network after 5G. The wireless devices (100a to 100f) can communicate with each other via the base station (200) / network (300), but can also communicate directly (e.g., sidelink communication) without going through the base station (200) / network (300). For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., vehicle-to-vehicle (V2V) / vehicle-to-everything (V2X) communication). Additionally, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0041] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a to 100f) and / or between wireless devices (100a to 100f) and a base station (200) and / or between base stations (200). Here, the wireless communication / connection can be established through various RATs (e.g., 5G NR), such as uplink / downlink communication (150a), sidelink communication (150b) (or, device-to-device (D2D) communication), and base station-to-base station communication (150c) (e.g., relay, integrated access and backhaul (IAB)). Through the wireless communication / connection (150a, 150b, 150c), the wireless devices (100a to 100f) and the base station (200) can transmit / receive wireless signals to / from each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, at least some of the various configuration information setting processes for transmitting / receiving wireless signals, various signal processing processes (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), and resource allocation processes can be performed based on various proposals of the present specification.

[0042] AI is the study of artificial intelligence or the methodologies for creating it, while machine learning (ML) defines various problems in the field of AI and studies the methodologies for solving them. Machine learning is also defined as an algorithm that improves performance on a task through consistent experience.

[0043] A robot can be defined as a machine that automatically processes or operates a given task based on its own capabilities. Specifically, a robot capable of perceiving its environment, making decisions, and performing actions on its own can be called an intelligent robot. Robots can be categorized into industrial, medical, household, and military applications based on their intended use or field. Robots are equipped with a drive unit, including an actuator or motor, enabling them to perform various physical actions, such as moving robot joints. Furthermore, mobile robots include wheels, brakes, and propellers in their drive unit, enabling them to drive on the ground or fly in the air.

[0044] Autonomous driving refers to the technology of driving on one's own, while autonomous vehicles refer to vehicles that drive without, or with minimal, user intervention. For example, autonomous driving can include technologies such as lane keeping, automatic speed control like adaptive cruise control, autonomous driving along a set route, and autonomous driving based on a set destination. Vehicles encompass all types of vehicles: those with internal combustion engines, hybrid vehicles with both internal combustion engines and electric motors, and electric vehicles with only electric motors. These vehicles can include not only cars but also trains and motorcycles. Autonomous vehicles can be viewed as robots with autonomous driving capabilities.

[0045] Extended reality is a general term for VR, AR, and MR. VR technology provides real-world objects and backgrounds as CG images only, AR technology provides virtual CG images over images of real objects, and MR technology is a CG technology that mixes and combines virtual objects with the real world. MR technology is similar to AR in that it displays real and virtual objects together. However, there is a difference: while AR uses virtual objects to complement real objects, MR uses virtual and real objects equally.

[0046] NR supports multiple numerologies, or subcarrier spacing (SCS), to support diverse 5G services. For example, an SCS of 15 kHz supports wide areas in traditional cellular bands; an SCS of 30 kHz / 60 kHz supports dense urban areas, lower latency, and wider carrier bandwidth; and an SCS of 60 kHz or higher supports bandwidths greater than 24.25 GHz to overcome phase noise.

[0047] The NR frequency band can be defined by two types of frequency ranges (FR1 and FR2). The numerical values ​​of the frequency ranges can be changed. For example, the two types of frequency ranges (FR1 and FR2) can be as shown in Table 1 below. For convenience of explanation, among the frequency ranges used in NR systems, FR1 can mean the "sub-6GHz range," and FR2 can mean the "above 6GHz range," which can be referred to as millimeter wave (mmW).

[0048] Frequency Range DefinitionFrequency RangeSubcarrier SpacingFR1450MHz - 6000MHz15, 30, 60kHzFR224250MHz - 52600MHz60, 120, 240kHz

[0049] As described above, the numerical value of the frequency range of the NR system can be changed. For example, FR1 may include a band from 410 MHz to 7125 MHz, as shown in Table 2 below. That is, FR1 may include frequency bands above 6 GHz (or 5850, 5900, 5925 MHz, etc.). For example, the frequency bands above 6 GHz (or 5850, 5900, 5925 MHz, etc.) included within FR1 may include unlicensed bands. Unlicensed bands may be used for various purposes, such as for communications for vehicles (e.g., autonomous driving).

[0050] Frequency Range DefinitionFrequency RangeSubcarrier SpacingFR1410MHz - 7125MHz15, 30, 60kHzFR224250MHz - 52600MHz60, 120, 240kHz

[0051] Here, the wireless communication technology implemented in the wireless device of the present specification may include not only LTE, NR, and 6G, but also narrowband IoT (NB-IoT) for low-power communication. For example, NB-IoT technology may be an example of LPWAN (low power wide area network) technology and may be implemented with standards such as LTE Cat NB1 and / or LTE Cat NB2, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless device of the present specification may perform communication based on LTE-M technology. For example, LTE-M technology may be an example of LPWAN technology and may be called by various names such as eMTC (enhanced MTC). For example, LTE-M technology can be implemented by at least one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-bandwidth limited), 5) LTE-MTC, 6) LTE MTC, and / or 7) LTE M, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless device of the present specification can include at least one of ZigBee, Bluetooth, and / or LPWAN considering low-power communication, and is not limited to the above-described names. For example, ZigBee technology can create PAN (personal area networks) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.

[0052] Figure 2 illustrates an example of a wireless device to which the implementation of the present specification is applied.

[0053] In FIG. 2, the first wireless device (100) and / or the second wireless device (200) may be implemented in various forms depending on the use case / service. For example, {the first wireless device (100) and the second wireless device (200)} may correspond to at least one of {the wireless devices (100a to 100f) and the base station (200)}, {the wireless devices (100a to 100f) and the wireless devices (100a to 100f)}, and / or {the base station (200) and the base station (200)} of FIG. 1. The first wireless device (100) and / or the second wireless device (200) may be configured by various components, devices / parts, and / or modules.

[0054] The first wireless device (100) may include at least one transceiver, such as a transceiver (106), at least one processing chip, such as a processing chip (101), and / or one or more antennas (108).

[0055] The processing chip (101) may include at least one processor, such as a processor (102), and at least one memory, such as a memory (104). Additionally and / or alternatively, the memory (104) may be located external to the processing chip (101).

[0056] The processor (102) may control the memory (104) and / or the transceiver (106) and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed herein. For example, the processor (102) may process information in the memory (104) to generate first information / signal and transmit a wireless signal including the first information / signal via the transceiver (106). The processor (102) may receive a wireless signal including second information / signal via the transceiver (106) and store information obtained by processing the second information / signal in the memory (104).

[0057] A memory (104) may be operatively connected to the processor (102). The memory (104) may store various types of information and / or instructions. The memory (104) may store firmware and / or software code (105) that implements code, instructions and / or sets of instructions that, when executed by the processor (102), perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. For example, the firmware and / or software code (105) may implement instructions that, when executed by the processor (102), perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. For example, the firmware and / or software code (105) may control the processor (102) to perform one or more protocols. For example, the firmware and / or software code (105) may control the processor (102) to perform one or more air interface protocol layers.

[0058] Here, the processor (102) and memory (104) may be part of a communication modem / circuit / chip designed to implement a RAT (e.g., LTE or NR). A transceiver (106) may be connected to the processor (102) and may transmit and / or receive wireless signals via one or more antennas (108). Each transceiver (106) may include a transmitter and / or a receiver. The transceiver (106) may be used interchangeably with an RF (radio frequency) unit. In the present specification, the first wireless device (100) may represent a communication modem / circuit / chip.

[0059] The second wireless device (200) may include at least one transceiver, such as a transceiver (206), at least one processing chip, such as a processing chip (201), and / or one or more antennas (208).

[0060] The processing chip (201) may include at least one processor, such as a processor (202), and at least one memory, such as a memory (204). Additionally and / or alternatively, the memory (204) may be located external to the processing chip (201).

[0061] The processor (202) may control the memory (204) and / or the transceiver (206) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein. For example, the processor (202) may process information in the memory (204) to generate third information / signal and transmit a wireless signal including the third information / signal via the transceiver (206). The processor (202) may receive a wireless signal including fourth information / signal via the transceiver (206) and store information obtained by processing the fourth information / signal in the memory (204).

[0062] A memory (204) may be operatively connected to the processor (202). The memory (204) may store various types of information and / or instructions. The memory (204) may store firmware and / or software code (205) that implements instruction codes, commands and / or sets of instructions that, when executed by the processor (202), perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. For example, the firmware and / or software code (205) may implement instructions that, when executed by the processor (202), perform the descriptions, functions, procedures, suggestions, methods and / or operational flowcharts disclosed herein. For example, the firmware and / or software code (205) may control the processor (202) to perform one or more protocols. For example, the firmware and / or software code (205) may control the processor (202) to perform one or more air interface protocol layers.

[0063] Here, the processor (202) and memory (204) may be part of a communication modem / circuit / chip designed to implement a RAT (e.g., LTE or NR). A transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals via one or more antennas (208). Each transceiver (206) may include a transmitter and / or a receiver. The transceiver (206) may be used interchangeably with the RF unit. In the present specification, the second wireless device (200) may represent a communication modem / circuit / chip.

[0064] Hereinafter, hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., functional layers such as a physical (PHY) layer, a media access control (MAC) layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, a radio resource control (RRC) layer, and a service data adaptation protocol (SDAP) layer). One or more processors (102, 202) may generate one or more protocol data units (PDUs), one or more service data units (SDUs), messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed herein. One or more processors (102, 202) can generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein and provide the signals to one or more transceivers (106, 206). One or more processors (102, 202) can receive signals (e.g., baseband signals) from one or more transceivers (106, 206) and obtain PDUs, SDUs, messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein.

[0065] The one or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, and / or a microcomputer. The one or more processors (102, 202) may be implemented by hardware, firmware, software, and / or a combination thereof. For example, one or more application specific integrated circuits (ASICs), one or more digital signal processors (DSPs), one or more digital signal processing devices (DSPDs), one or more programmable logic devices (PLDs), and / or one or more field programmable gate arrays (FPGAs) may be included in the one or more processors (102, 202). For example, the one or more processors (102, 202) may be configured by a set of a communication control processor, an application processor (AP), an electronic control unit (ECU), a central processing unit (CPU), a graphic processing unit (GPU), and a memory control processor.

[0066] One or more memories (104, 204) may be coupled to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. The one or more memories (104, 204) may be configured as random access memory (RAM), dynamic RAM (DRAM), read-only memory (ROM), erasable programmable ROM (EPROM), flash memory, volatile memory, nonvolatile memory, hard drive, register, cache memory, computer-readable storage media, and / or combinations thereof. The one or more memories (104, 204) may be located internally and / or externally to the one or more processors (102, 202). Additionally, the one or more memories (104, 204) may be coupled to the one or more processors (102, 202) via various technologies, such as wired or wireless connections.

[0067] One or more transceivers (106, 206) can transmit user data, control information, wireless signals / channels, etc., referred to in the descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed herein to one or more other devices. One or more transceivers (106, 206) can receive user data, control information, wireless signals / channels, etc., referred to in the descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed herein from one or more other devices. For example, one or more transceivers (106, 206) can be coupled to one or more processors (102, 202) and can transmit and receive wireless signals. For example, one or more processors (102, 202) can control one or more transceivers (106, 206) to transmit user data, control information, wireless signals, etc., to one or more other devices. Additionally, one or more processors (102, 202) may control one or more transceivers (106, 206) to receive user data, control information, wireless signals, etc. from one or more other devices.

[0068] One or more transceivers (106, 206) may be coupled to one or more antennas (108, 208). Additionally and / or alternatively, one or more transceivers (106, 206) may include one or more antennas (108, 208). One or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, etc., as described in the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein via one or more antennas (108, 208). In the present specification, one or more antennas (108, 208) may be multiple physical antennas or multiple logical antennas (e.g., antenna ports).

[0069] One or more transceivers (106, 206) may convert received user data, control information, wireless signals / channels, etc. from RF band signals to baseband signals in order to process the received user data, control information, wireless signals / channels, etc. using one or more processors (102, 202). One or more transceivers (106, 206) may convert processed user data, control information, wireless signals / channels, etc. from baseband signals to RF band signals using one or more processors (102, 202). For this purpose, one or more transceivers (106, 206) may include an (analog) oscillator and / or a filter. For example, one or more transceivers (106, 206) may up-convert an OFDM baseband signal to an OFDM signal via an (analog) oscillator and / or filter under the control of one or more processors (102, 202) and transmit the up-converted OFDM signal at a carrier frequency. One or more transceivers (106, 206) may receive an OFDM signal at a carrier frequency and down-convert the OFDM signal to an OFDM baseband signal via an (analog) oscillator and / or filter under the control of one or more processors (102, 202).

[0070] Although not illustrated in FIG. 2, the wireless device (100, 200) may further include additional components. The additional components (140) may be configured in various ways depending on the type of the wireless device (100, 200). For example, the additional components (140) may include at least one of a power unit / battery, an input / output (I / O) device (e.g., an audio I / O port, a video I / O port), a driving device, and a computing device. The additional components (140) may be connected to one or more processors (102, 202) via various technologies, such as a wired or wireless connection.

[0071] In the implementation of the present specification, a UE can operate as a transmitter in the uplink (UL) and as a receiver in the downlink (DL). In the implementation of the present specification, a base station can operate as a receiver in the UL and as a transmitter in the DL. For the sake of convenience of description, it is mainly assumed below that the first wireless device (100) operates as a UE and the second wireless device (200) operates as a base station. For example, a processor (102) connected to, mounted on, or released in the first wireless device (100) can be configured to perform UE operations according to the implementation of the present specification or to control a transceiver (106) to perform UE operations according to the implementation of the present specification. A processor (202) connected to, mounted on, or released in the second wireless device (200) can be configured to perform base station operations according to the implementation of the present specification or to control a transceiver (206) to perform base station operations according to the implementation of the present specification.

[0072] In this specification, a base station may be referred to as a Node B, an eNode B (eNB), or a gNB.

[0073] Figure 3 shows an example of a UE to which the implementation of this specification is applied.

[0074] Referring to FIG. 3, the UE (100) can correspond to the first wireless device (100) of FIG. 2.

[0075] The UE (100) includes a processor (102), memory (104), a transceiver (106), one or more antennas (108), a power management module (141), a battery (142), a display (143), a keypad (144), a SIM (Subscriber Identification Module) card (145), a speaker (146), and a microphone (147).

[0076] The processor (102) may be configured to implement the descriptions, functions, procedures, proposals, methods and / or flowcharts disclosed herein. The processor (102) may be configured to control one or more other components of the UE (100) to implement the descriptions, functions, procedures, proposals, methods and / or flowcharts disclosed herein. A layer of a radio interface protocol may be implemented in the processor (102). The processor (102) may include an ASIC, other chipsets, logic circuits and / or data processing devices. The processor (102) may be an application processor. The processor (102) may include at least one of a DSP, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), and a modem (modulator and demodulator). An example of the processor (102) is the SNAPDRAGON manufactured by Qualcomm®. TM Series processors, EXYNOS made by Samsung® TM Series processors, A-series processors made by Apple®, HELIO made by MediaTek® TM ATOM series processors made by Intel® TM It can be found in the series processors or the corresponding next-generation processors.

[0077] Memory (104) is operatively coupled to the processor (102) and stores various information for operating the processor (102). Memory (104) may include ROM, RAM, flash memory, memory cards, storage media, and / or other storage devices. When the implementation is implemented in software, the techniques described herein may be implemented using modules (e.g., procedures, functions, etc.) that perform the descriptions, functions, procedures, suggestions, methods, and / or operational flowcharts disclosed herein. The modules may be stored in memory (104) and executed by the processor (102). Memory (104) may be implemented within the processor (102) or external to the processor (102), in which case it may be communicatively coupled to the processor (102) via various methods known in the art.

[0078] A transceiver (106) is operably coupled to the processor (102) and transmits and / or receives a radio signal. The transceiver (106) includes a transmitter and a receiver. The transceiver (106) may include a baseband circuit for processing a radio frequency signal. The transceiver (106) controls one or more antennas (108) to transmit and / or receive a radio signal.

[0079] The power management module (141) manages the power of the processor (102) and / or the transceiver (106). The battery (142) supplies power to the power management module (141).

[0080] The display (143) outputs the results processed by the processor (102). The keypad (144) receives input to be used by the processor (102). The keypad (144) can be displayed on the display (143).

[0081] A SIM card (145) is an integrated circuit that securely stores an International Mobile Subscriber Identity (IMSI) and associated keys, and is used to identify and authenticate subscribers in mobile devices such as mobile phones and computers. Additionally, many SIM cards can store contact information.

[0082] The speaker (146) outputs sound-related results processed by the processor (102). The microphone (147) receives sound-related input to be used by the processor (102).

[0083] Figure 4 is a structural diagram of a next-generation mobile communications network.

[0084] 5GC (5G Core) may include various components, and in FIG. 5, some of them include AMF (Access and Mobility Management Function) (410), SMF (Session Management Function) (420), PCF (Policy Control Function) (430), UPF (User Plane Function) (440), AF (Application Function) (450), UDM (Unified Data Management) (460), and N3IWF (Non-3GPP (3rd Generation Partnership Project) Inter Working Function) (490).

[0085] The UE (100) is connected to a data network via UPF (440) through a Next Generation Radio Access Network (NG-RAN) including a gNB (20).

[0086] The UE (100) can also receive data services via untrusted non-3GPP access, such as a Wireless Local Area Network (WLAN). To connect the non-3GPP access to the core network, an N3IWF (490) may be deployed.

[0087] The illustrated N3IWF (490) performs the function of managing interworking between non-3GPP access and 5G system. When UE (100) is connected to non-3GPP access (e.g., WiFi, referred to as IEEE 801.11), UE (100) can be connected to 5G system through N3IWF (490). N3IWF (490) performs control signaling with AMF (410) and is connected to UPF (440) through N3 interface for data transmission.

[0088] The illustrated AMF (410) can manage access and mobility in a 5G system. The AMF (410) can perform functions to manage Non-Access Stratum (NAS) security. The AMF (410) can perform functions to handle mobility in the idle state.

[0089] The illustrated UPF (440) is a type of gateway through which user data is transmitted and received. The UPF node (440) can perform all or part of the user plane functions of the S-GW (Serving Gateway) and P-GW (Packet Data Network Gateway) of 4th generation mobile communications.

[0090] The UPF (440) acts as a boundary point between the next generation radio access network (NG-RAN) and the core network, and is an element that maintains a data path between the gNB (20) and the SMF (420). In addition, when the UE (100) moves across the area served by the gNB (20), the UPF (440) acts as a mobility anchor point. The UPF (440) can perform a function of handling PDUs. For mobility within the NG-RAN (Next Generation-Radio Access Network defined after 3GPP Release-15), the UPF can route packets. Additionally, the UPF (440) may also function as an anchor point for mobility with other 3GPP networks (RANs defined before 3GPP Release-15, e.g., UTRAN, E-UTRAN (Evolved-UMTS (Universal Mobile Telecommunications System) Terrestrial Radio Access Network)) or GERAN (GSM (Global System for Mobile Communication) / EDGE (Enhanced Data rates for Global Evolution) Radio Access Network). The UPF (440) may correspond to a termination point of a data interface toward a data network.

[0091] The illustrated PCF (430) is a node that controls the business operator's policy.

[0092] The illustrated AF (450) is a server for providing various services to the UE (100).

[0093] The illustrated UDM (460) is a type of server that manages subscriber information, such as the HSS (Home Subscriber Server) of 4th generation mobile communications. The UDM (460) stores and manages the subscriber information in a Unified Data Repository (UDR).

[0094] The illustrated SMF (420) can perform the function of allocating an IP (Internet Protocol) address of the UE. In addition, the SMF (420) can control a PDU (protocol data unit) session.

[0095] For reference, the drawing symbols for AMF (410), SMF (420), PCF (430), UPF (440), AF (450), UDM (460), N3IWF (490), gNB (20), or UE (100) may be omitted below.

[0096] 5G mobile communications support multiple numerologies, or subcarrier spacing (SCS), to support diverse 5G services. For example, a 15 kHz SCS supports wide areas in traditional cellular bands. A 30 kHz / 60 kHz SCS supports dense urban environments, lower latency, and wider carrier bandwidth. An SCS of 60 kHz or higher supports bandwidths greater than 24.25 GHz to overcome phase noise.

[0097] Figure 5 shows an example of a 5G system structure to which the implementation of this specification is applied.

[0098] The 5G system (5GS; 5G system) structure consists of the following network functions (NF; Network Function).

[0099] - AUSF (Authentication Server Function)

[0100] - AMF (Access and Mobility Management Function)

[0101] - DN (Data Network), 예를 들어 운영자 서비스, 인터넷 접속 또는 타사 서비스

[0102] - USDF (Unstructured Data Storage Function)

[0103] - NEF (Network Exposure Function)

[0104] - I-NEF (Intermediate NEF)

[0105] - NRF (Network Repository Function)

[0106] - NSSF (Network Slice Selection Function)

[0107] - PCF (Policy Control Function)

[0108] - SMF (Session Management Function)

[0109] - UDM (Unified Data Management)

[0110] - UDR (Unified Data Repository)

[0111] - UPF (User Plane Function)

[0112] - UCMF (UE radio Capability Management Function)

[0113] - AF (Application Function)

[0114] - UE (User Equipment)

[0115] - (R)AN ((Radio) Access Network)

[0116] - 5G-EIR (5G-Equipment Identity Register)

[0117] - NWDAF (Network Data Analytics Function)

[0118] - CHF (CHarging Function)

[0119] Additionally, the following network features may be considered:

[0120] - N3IWF (Non-3GPP InterWorking Function)

[0121] - TNGF (Trusted Non-3GPP Gateway Function)

[0122] - W-AGF (Wireline Access Gateway Function)

[0123] Figure 5 illustrates the 5G system architecture for a non-roaming case using a reference point representation showing how various network functions interact with each other.

[0124] In Figure 5, for clarity of the point-to-point diagram, UDSF, NEF, and NRF are not illustrated. However, all network functions shown can interact with UDSF, UDR, NEF, and NRF as needed.

[0125] For clarity, the connection between UDR and other NFs (e.g., PCF) is not shown in Fig. 4. For clarity, the connection between NWDAF and other NFs (e.g., PCF) is not shown in Fig. 4.

[0126] The 5G system architecture includes the following benchmarks:

[0127] - N1: Reference point between UE and AMF.

[0128] - N2: Reference point between (R)AN and AMF.

[0129] - N3: Reference point between (R)AN and UPF.

[0130] - N4: Reference point between SMF and UPF.

[0131] - N6: Reference point between UPF and data network.

[0132] - N9: Reference point between two UPFs.

[0133] The following benchmarks illustrate the interactions that exist between NF services in NF.

[0134] - N5: Reference point between PCF and AF.

[0135] - N7: Reference point between SMF and PCF.

[0136] - N8: Reference point between UDM and AMF.

[0137] - N10: Reference point between UDM and SMF.

[0138] - N11: Reference point between AMF and SMF.

[0139] - N12: Reference point between AMF and AUSF.

[0140] - N13: Reference point between UDM and AUSF.

[0141] - N14: Reference point between two AMFs.

[0142] - N15: Reference point between PCF and AMF for non-roaming scenarios, and reference point between PCF and AMF of visited network for roaming scenarios.

[0143] - N16: Reference point between two SMFs (in case of roaming, between the SMF of the visited network and the SMF of the home network)

[0144] - N22: Reference point between AMF and NSSF.

[0145] In some cases, two NFs may need to be interconnected to serve a UE.

[0146] In this specification, in relation to 5G evolution / 6G systems, 5G system functions and procedures that can dynamically / effectively control service robots, particularly collaborative robots, based on application requests can be proposed.

[0147] In particular, beyond the configuration of a network operator, service robots, especially collaborative robot-related services, can be dynamically provided based on dynamic requests from AFs of third-party business partners.

[0148] The collaborative robot scenario of this specification may refer to a scenario in which various terminals / devices, such as drops, IoT devices, and wearable devices, collaborate to perform a service, rather than just referring to physical mechanical robots.

[0149] Traditionally, functions and procedures have been defined for selecting individual UEs for use in federated learning (FL) for AI / ML operations. Additionally, functions and procedures have been defined for monitoring the QoS of specific groups.

[0150] In this document, 5G / 6G system support functions and procedures can be proposed so that the most appropriate group is selected for a specific application in an environment where various groups of devices / drones / robots, etc., each provide services.

[0151] The following drawings are intended to illustrate specific examples of the present specification. The names of specific devices and the names of specific signals, messages, and fields depicted in the drawings are provided for illustrative purposes only, and the technical features of this specification are not limited to the specific names used in the drawings.

[0152] Figure 6 illustrates an example of a procedure according to an embodiment of the present specification.

[0153] 1) Step 1

[0154] Multiple groups of terminals may be registered in the 5G / 6G system.

[0155] For example, a terminal group containing one or more drones may be registered with the system and perform some smart farm services. Simultaneously, a terminal group containing one or more robots may be registered with the system and perform some other smart farm services.

[0156] The application may be pre-configured with information about the group (e.g., the number of action groups to perform service tasks, individual terminals belonging to the group, etc.).

[0157] Group creation / update / delete can be performed through the application layer.

[0158] Information about groups can be sent and received through the application layer.

[0159] 2) Step 2

[0160] A third-party service provider (e.g., a provider offering smart farm services) may want to perform other services at some point. This may require selection of a terminal group to perform the service.

[0161] Terminal group selection can be for AI / ML operations or FL (Federated Learning).

[0162] It may be inefficient for AF to select a group of terminals to perform a service based on the limited information the application system has.

[0163] Therefore, AF can request assistant information for terminal group selection from the 5G / 6G system.

[0164] For example, to select a terminal group for a specific service, the AF may send a request message to the NEF. The request message may be a request message for group selection.

[0165] The above request message may contain information about conditions for a particular service.

[0166] For example, the request message may include at least one of the following information:

[0167] - Areas where specific services are required to be performed

[0168] - Time of specific service

[0169] - Resources required for a specific service (e.g., maximum data rate, minimum terminal battery required (or consumed), etc.)

[0170] - Other information.

[0171] NEF can obtain information from NWDAF in step 4 through NEF service operation. This is explained below.

[0172] NEF can receive notification subscriptions or one-time information requests for specific events from other network nodes (e.g., AF). Based on these requests, NEF can then reply with relevant information to other network nodes (e.g., AF).

[0173] In Step 2, AF can include the input values ​​of the NEF service operation in a message and send it to NEF. Through this message, AF can perform a subscription or one-time information request for NEF service operation.

[0174] Based on this, in step 4, NEF can send the output value to AF.

[0175] The input values ​​for the NEF service operation that AF transmits to NEF may include the following information:

[0176] - One or more list(s) of candidate Action Groups in the form of a list of Group IDs: The Group ID may be made recognizable in the core network through a service level agreement between the mobile operator and the third party partner to which the AF / Application belongs. Alternatively, the Group ID may be converted into information recognizable in the core network by the NEF.

[0177] The input value of the NEF service operation transmitted by the AF to the NEF may include at least one of the following information (selection elements / condition information) required for candidate group selection:

[0178] - Group QoS (eg Maximum Group data rate, Minimum Group data rate)

[0179] - Group power usages (e.g. terminal battery information required to perform the current or given task)

[0180] - Group scale (e.g. serviceable area)

[0181] - Group expected action time (e.g. time taken to perform a given task)

[0182] - Group density (e.g. density of individual terminals within a group)

[0183] - Group capability (e.g., availability of direct communication links between individual groups, signaling load control, etc.)

[0184] - Group direction (e.g. moving in the same direction due to group movement)

[0185] 3) Step 3

[0186] The system can monitor various terminal and network information according to the group monitoring procedure of the prior art. The system can transmit the monitoring results to the NEF.

[0187] 3-1) Step 3-1

[0188] NWDAF can perform analytics procedures.

[0189] The input of the Analytics procedure can be the results of monitoring (monitored information) received by NWDAF in step 3.

[0190] The output of the analytics process may be information about a candidate group. This candidate group may be a group of terminals that can meet the conditions requested by AF. This candidate group may be a group of terminals that can perform the service in the most appropriate region / time.

[0191] Based on the monitoring results (monitored information) received in step 3, NWDAF can determine (or generate) group selection Analytics (by predicting candidate terminal groups).

[0192] NWDAF can acquire information through interactions with analytics function nodes located in the OAM / RAN. This acquired information can be input to the aforementioned analytics process. For example, based on this acquired information, NWDAF can determine (or generate) group selection analytics.

[0193] An Analytics function node located in the OAM / RAN can collect information at per-RAN granularity for terminals belonging to a group to be monitored (e.g., action group). For example, an Analytics function node located in the OAM / RAN can collect information from each of all base stations (e.g., RAN) serving terminals belonging to the group. For example, if a group is composed of terminals 1 to 5, and terminals 1 to 3 are served by a first base station, and terminals 4 and 5 are served by a second base station, an Analytics function node located in the OAM / RAN can collect information about terminals 1 to 5 from the first base station and the second base station.

[0194] Additionally, the Analytics function node located in OAM / RAN can collect information (e.g., total transmission data volume of terminals served by a specific base station among terminals belonging to a specific group) collected by the base station (in case of multiple base stations, each base station).

[0195] Therefore, the Analytics function node located in the OAM / RAN can collect information related to the environment of individual base stations (or radio conditions). The Analytics function node located in the OAM / RAN can transmit the collected information to the NWDAF.

[0196] Based on information received from the Analytics function nodes located in OAM / RAN, NWDAF can determine Analytics by assigning weights to groups according to specific base stations or specific base station environments / situations.

[0197] 4) Step 4

[0198] Based on the determined analytics, the NWDAF can transmit information about candidate groups to the NEF. The NEF can transmit information about the received candidate groups to the AF. The candidate groups may be terminal groups that can meet the conditions requested by the AF. The candidate groups may be terminal groups that can perform services at the most appropriate region / time. For example, the information about the candidate groups may include a list of the candidate groups. The information about the candidate groups may include information about the priorities of each of the multiple candidate groups. The information about the priorities may be expressed through weights or by their order in the list.

[0199] Alternatively, the NWDAF may transmit the determined Analytics to the NEF. The NEF may transmit information about a candidate group to the AF based on the Analytics. The candidate group may be a group of terminals that can meet the conditions requested by the AF. The candidate group may be a group of terminals that can perform services at the most appropriate region / time. For example, the information about the candidate group may include a list composed of the candidate groups. The information about the candidate group may include information about the priority of each of the plurality of candidate groups. The information about the priority may be expressed through weights or by the order in the list.

[0200] When AF receives information about a candidate group, it can perform group selection based on that information. Furthermore, AF can perform subsequent steps for service provision based on that information.

[0201] Alternatively, NWDAF can transmit the determined analytics to NEF. NEF can then transmit the analytics to AF. Based on this, AF can perform group selection and follow-up procedures.

[0202] In step 4, the candidate group (or the group to be determined) may be a group that satisfies the conditions included in the request message in step 2 (conditions for a specific service).

[0203] Satisfaction of the condition can be determined on a group-by-group basis. For example, even if a particular candidate group satisfies the condition, some UEs within that particular candidate group may not satisfy the condition.

[0204] NEF can perform the following actions:

[0205] - The first network node (e.g. NEF) receives a request for group selection from AF along with the conditions required for group selection.

[0206] - Send necessary messages to different network nodes to perform necessary group monitoring based on the received information.

[0207] - Receive monitoring results

[0208] - Provide AF with a list of candidate terminal groups and related information based on the above monitoring results.

[0209] The AF (or application server) can perform the following actions:

[0210] - The second network node (e.g. AF or Application server) receives the group list from the mobile communication system.

[0211] - Uses AI algorithms to determine the feasibility of performing specific work tasks

[0212] - Execute an action to instruct or assign a task to the UEs of a selected group: For example, an AF (or application server) may send a message to another application server or to the UEs of a selected group to activate a specific application.

[0213] The base station can perform the following actions:

[0214] - Collect “resource per base station” information requested for monitoring

[0215] - Aggregate information to enable statistical / predictive analysis at the system-wide level

[0216] - The collected information is sent to the NWDAF or base station level analytical node.

[0217] The following drawings are intended to illustrate specific examples of the present specification. The names of specific devices and the names of specific signals, messages, and fields depicted in the drawings are provided for illustrative purposes only, and the technical features of this specification are not limited to the specific names used in the drawings.

[0218] Figure 7 illustrates the NEF procedure according to the disclosure of this specification.

[0219] 1. NEF (Network Exposure Function) can receive assistant information requests for specific services from AF (Application Function).

[0220] The above assistant information request may include conditions for specific services.

[0221] 2. Based on the above assistant information request, the NEF can obtain analytics for multiple candidate groups from the NWDAF (Network Data Analytics Function).

[0222] The above multiple candidate groups may be composed of UEs (User Equipment).

[0223] Each of the above plurality of candidate groups can satisfy the above conditions.

[0224] 3. Based on the above analytics, the NEF can transmit group information to the AF.

[0225] The above group information may include priority information for each of the plurality of candidate groups.

[0226] The above conditions may include at least one of region, time, resource, QoS (Quality of Service), density of UEs in the group, capability of the group, and movement direction of the group.

[0227] The above analytics may be information through OAM (Operations, Administration and Maintenance).

[0228] The above analytics may include weights for each of the plurality of candidate groups.

[0229] The step of the NEF obtaining the analytics may include: the step of the NEF sending an analytics request to the NWDAF; and the step of the NEF receiving the analytics from the NWDAF based on the analytics request.

[0230] A specific UE belonging to a first group among the plurality of candidate groups may not satisfy the above condition.

[0231] The following drawings are intended to illustrate specific examples of the present specification. The names of specific devices and the names of specific signals, messages, and fields depicted in the drawings are provided for illustrative purposes only, and the technical features of this specification are not limited to the specific names used in the drawings.

[0232] Figure 8 illustrates the procedure of AF according to the disclosure of this specification.

[0233] 1. AF (Application Function) can send a request for assistant information for a specific service to NEF (Network Exposure Function).

[0234] The above assistant information request may include conditions for specific services.

[0235] 2. Based on the above assistant information request, the AF can receive group information from the NEF.

[0236] The above group information may include information about multiple candidate groups.

[0237] The above multiple candidate groups may be composed of UEs (User Equipment).

[0238] Each of the above plurality of candidate groups can satisfy the above conditions.

[0239] The above group information may include priority information for each of the plurality of candidate groups.

[0240] The above conditions may include at least one of region, time, resource, QoS (Quality of Service), density of UEs in the group, capability of the group, and movement direction of the group.

[0241] The above group information may be information based on information through OAM (Operations, Administration and Maintenance).

[0242] Based on the above group information, the NEF can select a specific group among the plurality of candidate groups for the specific service.

[0243] A specific UE belonging to a first group among the plurality of candidate groups may not satisfy the above condition.

[0244] Hereinafter, a device for performing communication according to some embodiments of the present specification will be described.

[0245] For example, a device may include a processor, a transceiver, and memory.

[0246] For example, a processor may be configured to be operatively coupled with memory and a processor.

[0247] The operations performed by the processor include: a step in which the NEF receives a request for assistant information for a specific service from the AF; the request for assistant information includes a condition for the specific service, and based on the request for assistant information, the NEF obtains analytics for a plurality of candidate groups from the NWDAF; the plurality of candidate groups are comprised of UEs (User Equipment), and each of the plurality of candidate groups satisfies the condition, and based on the analytics, the NEF transmits group information to the AF, and the group information may include priority information for each of the plurality of candidate groups.

[0248] Below, a processor of a device for providing communication according to some embodiments of the present specification is described.

[0249] The operations performed by the processor include: a step in which the NEF receives a request for assistant information for a specific service from the AF; the request for assistant information includes a condition for the specific service, and based on the request for assistant information, the NEF obtains analytics for a plurality of candidate groups from the NWDAF; the plurality of candidate groups are comprised of UEs (User Equipment), and each of the plurality of candidate groups satisfies the condition, and based on the analytics, the NEF transmits group information to the AF, and the group information may include priority information for each of the plurality of candidate groups.

[0250] Hereinafter, a non-volatile computer-readable medium storing one or more commands for providing mobile communication according to some embodiments of the present specification is described.

[0251] According to some embodiments of the present disclosure, the technical features of the present disclosure may be implemented directly in hardware, software executed by a processor, or a combination of the two. For example, a method performed by a wireless device in wireless communication may be implemented in hardware, software, firmware, or any combination thereof. For example, the software may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or other storage media.

[0252] Some examples of storage media are coupled to the processor, allowing the processor to read information from the storage media. Alternatively, the storage media may be integrated into the processor. The processor and storage media may reside in an ASIC. In other examples, the processor and storage media may reside as separate components.

[0253] Computer-readable media may include tangible and non-volatile computer-readable storage media.

[0254] For example, nonvolatile computer-readable media may include random access memory (RAM), such as synchronized dynamic random access memory (SDRAM), read-only memory (ROM), non-volatile random access memory (NVRAM), read-only memory (EEPROM), flash memory, magnetic or optical data storage media, or any other media that can be used to store instructions or data structures. Nonvolatile computer-readable media may also include combinations of the above.

[0255] Additionally, the methods described herein can be realized at least in part by a computer-readable communication medium that carries or transmits code in the form of instructions or data structures and that can be accessed, read, and / or executed by a computer.

[0256] According to some embodiments of the present disclosure, a non-transitory computer-readable medium has one or more instructions stored thereon. The one or more stored instructions can be executed by a processor of a base station.

[0257] One or more stored commands include: a step in which the NEF receives a request for assistant information for a specific service from an AF; the assistant information request includes a condition for the specific service; and based on the assistant information request, the NEF obtains analytics for a plurality of candidate groups from the NWDAF; the plurality of candidate groups are comprised of UEs (User Equipment), each of the plurality of candidate groups satisfies the condition; and based on the analytics, the NEF transmits group information to the AF, wherein the group information may include priority information for each of the plurality of candidate groups.

[0258] This specification may have various effects.

[0259] For example, through the procedures disclosed herein, an appropriate group for a particular service can be selected.

[0260] The effects that can be achieved through specific examples of this specification are not limited to the effects listed above. For example, a person with ordinary skill in the relevant technical field may understand or derive various technical effects from this specification. Accordingly, the specific effects of this specification are not limited to those explicitly described herein, but may include various effects that can be understood or derived from the technical features of this specification.

[0261] The claims set forth in this specification may be combined in various ways. For example, the technical features of the method claims of this specification may be combined to implement a device, and the technical features of the device claims of this specification may be combined to implement a method. Furthermore, the technical features of the method claims and the technical features of the device claims of this specification may be combined to implement a device, and the technical features of the method claims and the technical features of the device claims of this specification may be combined to implement a method. Other implementations are within the scope of the claims.

Claims

1. As a method, A step in which the Network Exposure Function (NEF) receives a request for assistant information for a specific service from the Application Function (AF); The above assistant information request includes conditions for a specific service, A step in which the NEF obtains analytics for multiple candidate groups from the NWDAF (Network Data Analytics Function) based on the assistant information request; The above multiple candidate groups are composed of UE (User Equipment), Each of the above plurality of candidate groups satisfies the above conditions, Based on the above analytics, the NEF includes a step of transmitting group information to the AF, A method wherein the group information includes priority information for each of the plurality of candidate groups.

2. In paragraph 1, A method wherein the above conditions include at least one of region, time, resources, QoS (Quality of Service), density of UEs in a group, capability of the group, and movement direction of the group.

3. In paragraph 1 or 2, The above analytics is a method of information through OAM (Operations, Administration and Maintenance).

4. In any one of the clauses 1 to 3, A method wherein the above analytics includes weights for each of the plurality of candidate groups.

5. In any one of paragraphs 1 to 4, The steps by which the above NEF acquires the above analytics are: A step in which the NEF transmits an analytics request to the NWDAF; A method comprising a step of the NEF receiving the analytics from the NWDAF based on the analytics request.

6. In any one of paragraphs 1 to 5, A method in which a specific UE belonging to a first group among the plurality of candidate groups does not satisfy the above condition.

7. As a method, A step in which AF (Application Function) sends a request for assistant information for a specific service to NEF (Network Exposure Function); The above assistant information request includes conditions for a specific service, Based on the assistant information request, the AF includes a step of receiving group information from the NEF, The above group information includes information about multiple candidate groups, The above multiple candidate groups are composed of UE (User Equipment), Each of the above plurality of candidate groups satisfies the above conditions, A method wherein the group information includes priority information for each of the plurality of candidate groups.

8. In paragraph 7, A method wherein the above conditions include at least one of region, time, resources, QoS (Quality of Service), density of UEs in a group, capability of the group, and movement direction of the group.

9. In paragraph 7 or 8, The above group information is a method based on information through OAM (Operations, Administration and Maintenance).

10. In any one of the clauses 7 to 9, A method further comprising a step of the NEF selecting a specific group from among the plurality of candidate groups for the specific service based on the group information.

11. In any one of the clauses 7 to 10, A method in which a specific UE belonging to a first group among the plurality of candidate groups does not satisfy the above condition.

12. As a Network Exposure Function (NEF) that performs communication, At least one transmitter and receiver; Contains at least one processor, The operation performed by the at least one processor is a NEF method according to any one of claims 1 to 6.

13. As an AF (Application Function) that performs communication, At least one transmitter and receiver; Contains at least one processor, The operation performed by at least one processor is an AF method according to any one of claims 7 to 11.

14. As an apparatus in mobile communication, at least one processor; and At least one memory storing instructions and being operably electrically connected to the at least one processor, A device wherein the operation performed based on the command being executed by at least one processor is a method according to any one of claims 1 to 6.

15. A non-volatile computer-readable storage medium that records commands, A non-volatile computer-readable storage medium, wherein the instructions, when executed by one or more processors, cause the one or more processors to perform a method according to any one of claims 1 to 6.

Images