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WO2019216683A1 - Procédé d'utilisation de ladn dans un système de communication sans fil et appareil correspondant - Google Patents

Procédé d'utilisation de ladn dans un système de communication sans fil et appareil correspondant Download PDF

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Publication number
WO2019216683A1
WO2019216683A1 PCT/KR2019/005614 KR2019005614W WO2019216683A1 WO 2019216683 A1 WO2019216683 A1 WO 2019216683A1 KR 2019005614 W KR2019005614 W KR 2019005614W WO 2019216683 A1 WO2019216683 A1 WO 2019216683A1
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WIPO (PCT)
Prior art keywords
ladn
information
service
pdu session
terminal
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Ceased
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PCT/KR2019/005614
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English (en)
Korean (ko)
Inventor
김현숙
김래영
류진숙
윤명준
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LG Electronics Inc
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LG Electronics Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks

Definitions

  • the present invention relates to a wireless communication system, and more particularly, to a method for a user equipment (UE) to use a local area data network (LADN) and an apparatus for supporting the same.
  • UE user equipment
  • LADN local area data network
  • Mobile communication systems have been developed to provide voice services while ensuring user activity.
  • the mobile communication system has expanded not only voice but also data service.As a result of the explosive increase in traffic, a shortage of resources and users are demanding higher speed services, a more advanced mobile communication system is required. have.
  • An object of the present invention is to propose a method for the UE to effectively use LADN.
  • An aspect of the present invention provides a UE (UE) for establishing a Protocol Data Unit (PDU) session for a Local Area Data Network (LADN) service in a wireless communication system.
  • a communication module ; A display unit; Memory; A processor controlling the transceiver, the display unit, and the memory;
  • the processor may include a LADN policy setting unit configured to set a policy regarding LADN discovery, and transmits a registration request to an access and mobility management function (AMF) through the transceiver.
  • the registration request may include a registration manager including information for indicating a request for LADN information for a LADN service, a LADN information manager for managing the LADN information obtained through the registration manager, and a PDU session establishment procedure. It may include a PDU session management unit for establishing a PDU session for the LADN service by performing a procedure).
  • the processor may also receive a registration accept message from the AMF indicating that the registration request has been accepted, the registration acceptance message including the LADN information, and displaying the LADN information. We can display on screen through wealth.
  • the LADN discovery policy may also be set by receiving, from the AMF, the LADN discovery policy preset in the memory or generated by a policy control function (PCF) from the AMF.
  • PCF policy control function
  • a button for selecting whether to allow access to the LADN information and / or the LADN service may be displayed on the screen through the display unit.
  • the PDU session establishment procedure may be performed through the PDU session manager.
  • an SMS message including a hyperlink for setting the LADN information and / or access to the LADN service may be displayed on the screen.
  • the PDU session establishment procedure may be performed through the PDU session manager.
  • an icon and / or status window indicating that the LADN service can be used is displayed.
  • the display may be displayed on the screen.
  • the area in which the at least one LADN service is provided is partitioned on a map to display on the screen through the display unit, and to set whether to allow access to the LADN service
  • the user interface may be displayed on the screen through the display unit.
  • the setting screen may include one or more LADN service names and a button for setting access permission for the LADN service.
  • the registration request may be transmitted to the AMF.
  • an icon and / or a status window for indicating that the PDU session is being maintained may be displayed on the screen.
  • an icon and / or a status window indicating the failure of the PDU session establishment may be displayed on the screen.
  • the LADN service A message for notifying the user of the departure from the region may be displayed on the screen through the display unit.
  • Another aspect of the present invention is to establish a Protocol Data Unit (PDU) session for a Local Area Data Network (LADN) service by a user equipment (UE) in a wireless communication system.
  • AMF access and mobility management function
  • the method may further include displaying a button for receiving selection of whether to allow the LADN information and / or access to the LADN service on a screen of the terminal.
  • the PDU session establishment procedure may be performed through the PDU session manager.
  • the method may further include displaying an SMS message including a hyperlink for setting the LADN information and / or whether to allow access to the LADN service on a screen of the terminal.
  • the PDU session establishment procedure may be performed through the PDU session manager.
  • an icon and / or status window indicating that the LADN service can be used is displayed.
  • the method may further include displaying on a screen of the terminal.
  • the method may further include partitioning, on a map, a region in which one or more LADN services are provided, based on the location of the terminal, on a screen; And displaying a user interface for setting whether to allow access to the at least one LADN service on a screen of the terminal.
  • the configuration screen may include an input button for setting the name of one or more LADN services and whether to allow access to the LADN service.
  • the registration request may be transmitted to the AMF.
  • the method may further include displaying an icon and / or a status window indicating that the PDU session is being maintained when the PDU session establishment is successful.
  • the method may further include displaying, on the screen of the terminal, a notification window or a notification message indicating that the PDU session is not established.
  • the LADN service may further include displaying, on a screen of the terminal, a notification window or a notification message for notifying the user of the departure from the region.
  • the UE can effectively use LADN.
  • the UE can prevent the reception of unnecessary LADN information for every registration / update of the LADN information.
  • a more flexible LADN service may be provided for each UE by generating (determining) a LADN discovery policy for each UE.
  • FIG. 1 illustrates a wireless communication system architecture to which the present invention may be applied.
  • FIG. 2 is a diagram illustrating a radio protocol stack in a wireless communication system to which the present invention can be applied.
  • FIG. 3 is a view for explaining a LADN information providing method and LADN service area in a wireless communication system to which the present invention can be applied.
  • FIG. 4 is a diagram illustrating a UE mobility event notification and a location reporting procedure of the NG-RAN in a wireless communication system to which the present invention can be applied.
  • FIG. 5 is a diagram for describing reporting of UE presence in a LADN service area in a wireless communication system to which the present invention can be applied.
  • FIG. 6 is a diagram illustrating a LADN information delivery method according to an embodiment of the present invention.
  • FIG. 7 is a diagram illustrating a setting method for LADN access according to an embodiment of the present invention.
  • FIG. 8 is a diagram illustrating a policy delivery method for LADN discovery according to an embodiment of the present invention.
  • FIG. 9 is a diagram illustrating a method of displaying a LADN serviceable area and information according to an embodiment of the present invention.
  • FIG. 10 is a diagram illustrating a method of displaying a LADN serviceable area and information according to an embodiment of the present invention.
  • FIG. 11 is a diagram illustrating a method for notifying entry into a LADN service area according to an embodiment of the present invention.
  • FIG. 12 is a diagram illustrating a method for notifying entry into a LADN service area according to an embodiment of the present invention.
  • FIG. 13 is a diagram illustrating a method for displaying information on a LADN service according to an embodiment of the present invention.
  • FIG. 14 is a diagram illustrating a method of displaying information on a LADN service according to an embodiment of the present invention.
  • 15 is a diagram illustrating a method of using LADN according to an embodiment of the present invention.
  • 16 is a diagram illustrating a block diagram of a terminal according to an embodiment of the present invention.
  • 17 is a diagram illustrating a block diagram of a terminal according to an embodiment of the present invention.
  • FIG. 18 is a block diagram illustrating a mobile terminal according to the present invention.
  • FIG. 19 is a diagram illustrating a method of using LADN according to an embodiment of the present invention.
  • 20 is a diagram illustrating a block diagram of a network node according to an embodiment of the present invention.
  • 21 is a diagram illustrating a block diagram of a network node according to an embodiment of the present invention.
  • a base station has a meaning as a terminal node of a network that directly communicates with a terminal.
  • the specific operation described as performed by the base station in this document may be performed by an upper node of the base station in some cases. That is, it is obvious that various operations performed for communication with a terminal in a network composed of a plurality of network nodes including a base station may be performed by the base station or other network nodes other than the base station.
  • a 'base station (BS)' may be replaced by terms such as a fixed station, a Node B, an evolved-NodeB (eNB), a base transceiver system (BTS), an access point (AP), and the like. .
  • a 'terminal' may be fixed or mobile, and may include a user equipment (UE), a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), and an AMS ( Advanced Mobile Station (WT), Wireless Terminal (WT), Machine-Type Communication (MTC) Device, Machine-to-Machine (M2M) Device, Device-to-Device (D2D) Device, etc.
  • UE user equipment
  • MS mobile station
  • UT user terminal
  • MSS mobile subscriber station
  • SS subscriber station
  • AMS Advanced Mobile Station
  • WT Wireless Terminal
  • MTC Machine-Type Communication
  • M2M Machine-to-Machine
  • D2D Device-to-Device
  • downlink means communication from a base station to a terminal
  • uplink means communication from a terminal to a base station.
  • a transmitter may be part of a base station, and a receiver may be part of a terminal.
  • a transmitter may be part of a terminal and a receiver may be part of a base station.
  • Embodiments of the present invention may be supported by standard documents disclosed in at least one of the wireless access systems IEEE 802, 3GPP and 3GPP2. That is, steps or parts which are not described to clearly reveal the technical spirit of the present invention among the embodiments of the present invention may be supported by the above documents. In addition, all terms disclosed in the present document can be described by the above standard document.
  • Evolved Packet System A network system consisting of an Evolved Packet Core (EPC), which is a packet switched core network based on Internet Protocol (IP), and an access network such as LTE and UTRAN.
  • EPC Evolved Packet Core
  • IP Internet Protocol
  • UMTS Universal Mobile Telecommunications System
  • eNodeB base station of EPS network. It is installed outdoors and its coverage is macro cell size.
  • IMSI International Mobile Subscriber Identity
  • PLMN Public Land Mobile Network
  • 5G system 5G system: a system composed of a 5G access network (AN), a 5G core network and a user equipment (UE)
  • AN 5G access network
  • UE user equipment
  • 5G Access Network 5G Access Network
  • AN New Generation Radio Access Network
  • NG-RAN New Generation Radio Access Network
  • 3GPP AN An access network consisting of a non-5G Access Network.
  • New Generation Radio Access Network (NG-RAN) (or RAN): A radio access network that has a common feature of being connected to 5GC and supports one or more of the following options:
  • 5G Core Network A core network connected to a 5G access network.
  • NF Network Function
  • NF service A function exposed by the NF through a service-based interface and consumed by other authorized NF (s).
  • Network Slice Logical network providing specific network capability (s) and network feature (s).
  • Network Slice instance A set of NF instance (s) and required resource (s) (e.g. compute, storage and networking resources) forming a network slice to be deployed.
  • Protocol Data Unit (PDU) Connectivity Service PDU: A service that provides for the exchange of PDU (s) between a UE and a data network.
  • PDU Connectivity Service A service that provides the exchange of PDU (s) between the UE and the data network.
  • PDU Session An association between a UE and a data network providing a PDU Connectivity Service.
  • the association type may be Internet Protocol (IP), Ethernet, or unstructured.
  • Non-Access Stratum A functional layer for exchanging signaling and traffic messages between a terminal and a core network in an EPS and 5GS protocol stack. The main function is to support the mobility of the terminal and to support the session management procedure.
  • the 5G system is an advanced technology from the 4th generation LTE mobile communication technology, and is a new radio access technology (RAT) and long-range LTE (Long) through the evolution or clean-state structure of the existing mobile communication network structure.
  • Term Evolution (Extended LTE) technology supports extended LTE (eLTE), non-3GPP (eg, Wireless Local Area Network (WLAN)) access, and the like.
  • the 5G system architecture is defined to support data connectivity and services so that deployments can use technologies such as Network Function Virtualization and Software Defined Networking.
  • the 5G system architecture utilizes service-based interactions between Control Plane (CP) Network Functions (NF).
  • CP Control Plane
  • NF Network Functions
  • FIG. 1 illustrates a wireless communication system architecture to which the present invention may be applied.
  • the 5G system architecture may include various components (ie, a network function (NF)) and illustrate some of them in FIG. 1.
  • NF network function
  • Access and Mobility Management Functions include CN inter-node signaling for mobility between 3GPP access networks, termination of Radio Access Network (RAN) CP interfaces (N2), NAS It supports functions such as termination of signaling (N1), registration management (registration area management), idle mode UE accessibility, support for network slicing, and SMF selection.
  • RAN Radio Access Network
  • N2 Radio Access Network CP interfaces
  • NAS It supports functions such as termination of signaling (N1), registration management (registration area management), idle mode UE accessibility, support for network slicing, and SMF selection.
  • AMF Access Management Function
  • the data network means, for example, an operator service, an Internet connection, or a third party service.
  • the DN transmits a downlink protocol data unit (PDU) to the UPF or receives a PDU transmitted from the UE from the UPF.
  • PDU downlink protocol data unit
  • the policy control function receives a packet flow information from an application server and provides a function of determining a policy such as mobility management and session management.
  • the session management function provides a session management function.
  • the session management function may be managed by different SMFs for each session.
  • Some or all functions of an SMF may be supported within a single instance of one SMF.
  • Unified Data Management stores user subscription data, policy data, and the like.
  • the user plane function transmits the downlink PDU received from the DN to the UE via (R) AN and the uplink PDU received from the UE via (R) AN to the DN. .
  • AFs Application functions
  • services e.g., support for application impact on traffic routing, access to Network Capability Exposure, and interaction with policy frameworks for policy control). Interoperate with the 3GPP core network.
  • (Radio) Access Network ((R) AN: (Radio) Access Network) is an evolved version of 4G radio access technology, evolved E-UTRA (E-UTRA) and new radio access technology (NR) ( For example, generically refers to a new radio access network that supports both gNB).
  • E-UTRA evolved E-UTRA
  • NR new radio access technology
  • the gNB is capable of dynamic resource allocation to the UE in radio resource management functions (ie, radio bearer control, radio admission control, connection mobility control, uplink / downlink). It supports functions such as dynamic allocation of resources (ie, scheduling).
  • radio resource management functions ie, radio bearer control, radio admission control, connection mobility control, uplink / downlink. It supports functions such as dynamic allocation of resources (ie, scheduling).
  • UE means a user equipment.
  • a conceptual link connecting NFs in a 5G system is defined as a reference point.
  • N1 (or NG1) is a reference point between the UE and AMF
  • N2 (or NG2) is a reference point between (R) AN and AMF
  • N3 (or NG3) is a reference point between (R) AN and UPF
  • N4 (or NG4) Is a reference point between SMF and UPF
  • N5 (or NG5) is a reference point between PCF and AF
  • N6 (or NG6) is a reference point between UPF and data network
  • N7 (or NG7) is a reference point between SMF and PCF
  • N24 ( Or NG24 is a reference point between a PCF in a visited network and a PCF in a home network
  • N8 (or NG8) is a reference point between UDM and AMF
  • N9 (or NG9) is between two core UPFs.
  • N10 (or NG10) is the reference point between UDM and SMF
  • N11 (or NG11) is the reference point between AMF and SMF
  • N12 (or NG12) is the reference point between AMF and AUSF
  • N13 (or NG13) is between UDM and Reference point between Authentication Server function (AUSF)
  • N14 (or NG14) is reference point between two AMFs
  • N15 (or N G15) refers to a reference point between the PCF and the AMF in the non-roaming scenario, and a reference point between the PCF and the AMF in the visited network in the roaming scenario.
  • FIG. 1 illustrates a reference model for a case where a UE accesses one DN using one PDU session for convenience of description, but is not limited thereto.
  • FIG. 2 is a diagram illustrating a radio protocol stack in a wireless communication system to which the present invention can be applied.
  • FIG. 2 (a) illustrates the air interface user plane protocol stack between the UE and the gNB
  • FIG. 2 (b) illustrates the air interface control plane protocol stack between the UE and the gNB.
  • the control plane refers to a path through which control messages used by the UE and the network to manage a call are transmitted.
  • the user plane refers to a path through which data generated at an application layer, for example, voice data or Internet packet data, is transmitted.
  • a user plane protocol stack may be divided into a first layer (Layer 1) (ie, a physical layer (PHY) layer) and a second layer (Layer 2).
  • Layer 1 ie, a physical layer (PHY) layer
  • Layer 2 a second layer
  • the control plane protocol stack includes a first layer (ie, PHY layer), a second layer, and a third layer (ie, radio resource control (RRC) layer), It may be divided into a non-access stratum (NAS) layer.
  • a first layer ie, PHY layer
  • a second layer ie, a third layer
  • RRC radio resource control
  • NAS non-access stratum
  • the second layer includes a medium access control (MAC) sublayer, a radio link control (RLC) sublayer, a packet data convergence protocol (PDC) sublayer, a service data adaptation protocol ( SDAP: Service Data Adaptation Protocol (SDAP) sublayer (in case of user plane).
  • MAC medium access control
  • RLC radio link control
  • PDC packet data convergence protocol
  • SDAP Service Data Adaptation Protocol
  • Radio bearers are classified into two groups: a data radio bearer (DRB) for user plane data and a signaling radio bearer (SRB) for control plane data.
  • DRB data radio bearer
  • SRB signaling radio bearer
  • the first layer provides an information transfer service to a higher layer by using a physical channel.
  • the physical layer is connected to a MAC sublayer located at a higher level through a transport channel, and data is transmitted between the MAC sublayer and the PHY layer through the transport channel.
  • Transport channels are classified according to how and with what characteristics data is transmitted over the air interface.
  • data is transmitted between different physical layers through a physical channel between a PHY layer of a transmitter and a PHY layer of a receiver.
  • the MAC sublayer includes a mapping between a logical channel and a transport channel; Multiplexing / demultiplexing of MAC Service Data Units (SDUs) belonging to one or different logical channels to / from a transport block (TB) delivered to / from the PHY layer via the transport channel; Reporting scheduling information; Error correction through hybrid automatic repeat request (HARQ); Priority handling between UEs using dynamic scheduling; Priority handling between logical channels of one UE using logical channel priority; Padding is performed.
  • SDUs Service Data Units
  • TB transport block
  • HARQ hybrid automatic repeat request
  • Each logical channel type defines what type of information is conveyed.
  • Logical channels are classified into two groups: Control Channel and Traffic Channel.
  • control channel is used to convey only control plane information and is as follows.
  • BCCH Broadcast Control Channel
  • PCCH Paging Control Channel
  • CCCH Common Control Channel
  • DCCH Dedicated Control Channel
  • the traffic channel is used to use only user plane information:
  • DTCH Dedicated Traffic Channel
  • connection between a logical channel and a transport channel is as follows.
  • BCCH may be mapped to BCH.
  • BCCH may be mapped to the DL-SCH.
  • PCCH may be mapped to PCH.
  • CCCH may be mapped to the DL-SCH.
  • DCCH may be mapped to DL-SCH.
  • DTCH may be mapped to the DL-SCH.
  • CCCH may be mapped to UL-SCH.
  • DCCH may be mapped to UL-SCH.
  • DTCH may be mapped to UL-SCH.
  • the RLC sublayer supports three transmission modes: transparent mode (TM), unacknowledged mode (UM), and acknowledgment mode (AM).
  • TM transparent mode
  • UM unacknowledged mode
  • AM acknowledgment mode
  • the RLC configuration may be applied for each logical channel.
  • TM or AM mode is used for SRB, while UM or AM mode is used for DRB.
  • the RLC sublayer is a delivery of higher layer PDUs; Sequence numbering independent of PDCP; Error correction through automatic repeat request (ARQ); Segmentation and re-segmentation; Reassembly of SDUs; RLC SDU discard; RLC re-establishment is performed.
  • PDCP sublayer for user plane includes sequence numbering; Header compression and decompression (only for Robust Header Compression (RoHC)); User data delivery; Reordering and duplicate detection (if delivery to a layer higher than PDCP is required); PDCP PDU routing (for split bearer); Retransmission of PDCP SDUs; Ciphering and deciphering; Discarding PDCP SDUs; PDCP re-establishment and data recovery for RLC AM; Perform replication of PDCP PDUs.
  • Header compression and decompression only for Robust Header Compression (RoHC)
  • User data delivery Reordering and duplicate detection (if delivery to a layer higher than PDCP is required)
  • PDCP PDU routing for split bearer
  • Retransmission of PDCP SDUs Ciphering and deciphering
  • Discarding PDCP SDUs PDCP re-establishment and data recovery for RLC AM
  • Perform replication of PDCP PDUs
  • the PDCP sublayer for the control plane additionally includes sequence numbering; Ciphering, decryption, and integrity protection; Control plane data transfer; Replication detection; Perform replication of PDCP PDUs.
  • Replication in PDCP involves sending the same PDCP PDU (s) twice. One is delivered to the original RLC entity, the second to an additional RLC entity. At this time, the original PDCP PDU and the corresponding copy are not transmitted in the same transport block.
  • Two different logical channels may belong to the same MAC entity (for CA) or may belong to different MAC entities (for DC). In the former case, logical channel mapping restrictions are used to ensure that the original PDCP PDU and its copy are not transmitted in the same transport block.
  • the SDAP sublayer performs i) mapping between QoS flows and data radio bearers, ii) QoS flow identifier (ID) marking in downlink and uplink packets.
  • a single protocol entity of SDAP is configured for each individual PDU session.
  • two SDAP entities may be configured in the case of dual connectivity (DC).
  • DC dual connectivity
  • the RRC sublayer is a broadcast of system information related to an access stratum (AS) and a non-access stratum (NAS); Paging initiated by 5GC or NG-RAN; Establishing, maintaining, and releasing RRC connections between the UE and the NG-RAN (in addition, modifying and releasing carrier aggregation), and additionally, dual connectivity between the E-UTRAN and the NR or within the NR (Dual).
  • AS access stratum
  • NAS non-access stratum
  • 5GC access stratum
  • NG-RAN non-access stratum
  • Security functions including key management; Establishment, establishment, maintenance, and release of SRB (s) and DRB (s); Handover and context transfer; Control of UE cell selection and disaster recovery and cell selection / reselection; Mobility functionality including inter-RAT mobility; QoS management functions, UE measurement reporting and report control; Detection of radio link failures and recovery from radio link failures; NAS message delivery from NAS to UE and NAS message delivery from UE to NAS are performed.
  • LADN Local Area Data Network
  • LADN Access to the DN through a PDU session for the LADN is only available within a specific LADN service area.
  • the LADN service area is a set of tracking areas.
  • LADN is provided by the serving PLMN of the UE:
  • LADN service applies only to 3GPP access and does not apply to Home Routed case.
  • LADN Data Network Name requires an explicit subscription to this LADN DNN or a subscription to a wildcard DNN.
  • Whether the DNN corresponds to the LADN service is an attribute of the DNN.
  • the UE is configured to know whether the DNN is a LADN DNN.
  • FIG. 3 is a view for explaining a LADN information providing method and LADN service area in a wireless communication system to which the present invention can be applied.
  • LADN information ie, LADN service area information and LADN DNN
  • DNN1 LADN, service area, as shown in FIG. 3
  • the LADN service area set up for different UEs accessing the same LADN is the same regardless of other factors (eg, registration area of UE or subscription information of UE).
  • the LADN information is provided to the UE by the AMF during the registration procedure or the UE configuration update procedure (step 1 in FIG. 3 (a)).
  • the corresponding LADN service area information includes a set of tracking areas belonging to a registration area assigned to the UE by the AMF (ie, LADN service area). And the intersection of the current registration area).
  • the AMF When a UE performs a successful (re) registration procedure, based on local settings for the LADN, UE location, and UE subscription information received from the UDM with respect to the subscribed DNN, the AMF registers the corresponding registration in the Registration Accept message. It is possible to provide the UE with LADN information about the LADN available to the UE in the region (step 2 of FIG. 3 (a)).
  • the UE deletes the LADN information for that DNN (step 3 in Figure 3 (a)).
  • the AMF updates the LADN information to the UE through a UE configuration update / registration procedure (step 2 in FIG. 3 (a)).
  • the UE Based on the LADN information in the UE, the UE operates as follows:
  • the UE When the UE leaves the LADN service area, the UE:
  • the UE When the UE is located in the LADN service area, the UE:
  • the SMF supporting the DNN is configured with information on whether this DNN is a LADN DNN;
  • the SMF registers a "UE mobility event notification" to report the presence of the UE in the Area of Interest (eg, LADN service area) by providing the LAMF DNN to the AMF.
  • FIG. 4 is a diagram illustrating a UE mobility event notification and a location reporting procedure of the NG-RAN in a wireless communication system to which the present invention can be applied.
  • the 5G system provides tracking and reporting for UE mobility events.
  • the AMF provides UE mobility related event reporting to the NF authorized to subscribe to the UE mobility event reporting service.
  • NF service consumers such as SMFs, PCFs, or Network Exposure Functions (NEFs) who want to see and receive UE locations, can use the following parameters to tell AMF the UE mobility event notification service (e.g., 'Namf_EventExposure_Notify'). You can join (step 1 in Figure 4):
  • An event report type that specifies to be reported for UE mobility (eg UE location, UE mobility on area of interest)
  • An area of interest that specifies a geographic area within the 3GPP system.
  • the region of interest is represented by a list of tracking regions, a list of (R) AN node identifiers, or a cell list.
  • an event consumer eg, SMF
  • Event Report Mode Event Report Mode
  • Report Count Report Count
  • Notification address (ie endpoint address of NF service consumer to be notified)
  • the AMF may determine the connection management (CM) status of the UE to determine the UE presence in the region of interest.
  • CM connection management
  • the AMF can request the NG-RAN to report on the UE location or UE presence in the region of interest.
  • the AMF may receive a UE presence and / or current UE location (or time stamp and last known UE location) from the NG-RAN. This procedure is not necessarily performed.
  • the AMF Upon detecting a change in UE presence in the region of interest, the AMF notifies the subscribed NF consumer of the UE presence in the region of interest and (optionally) a new UE location (step 2 in FIG. 4).
  • the new AMF may decide not to notify the SMF with the current status associated with the subscription of the mobility event. .
  • MM Mobility Management
  • the AMF shall NG-RAN location reporting may be initiated to track my UE presence.
  • FIG. 5 is a diagram for describing reporting of UE presence in a LADN service area in a wireless communication system to which the present invention can be applied.
  • the AMF determines the presence of the UE (ie, IN, OUT, UNKNOWN) in the area of interest (eg, LADN service area) as follows.
  • the AMF determines that the UE is in the region of interest (IN) (see FIG. 5 (c)).
  • the AMF determines that the UE exists in the region of interest (IN) (see FIG. 5 (a)).
  • the AMF determines that the UE is outside the region of interest (OUT) (see FIG. 5 (b)).
  • the AMF determines that the UE is out of the region of interest (OUT) (see FIG. 5 (c)).
  • the AMF determines that the existence of the UE is UNKNOWN. (See Figures 5 (b) and 5 (c)).
  • the AMF determines the presence of the UE in the region of interest (e.g., the LADN service area), and the UE mobility event reporting service (e.g., Namf_EventExposure_Notify) indicates the presence of the UE as in step 2 of FIG. Provide to NFs (eg, SMFs) who are permitted to join.
  • the region of interest e.g., the LADN service area
  • the UE mobility event reporting service e.g., Namf_EventExposure_Notify
  • the SMF Based on the notification of UE presence in the LADN service area (ie IN, OUT, UNKNOWN) notified by AMF, the SMF operates as follows based on the operator's policy: :
  • the SMF may later release the PDU session.
  • the SMF When the SMF is informed that the UE exists ('IN') within the LADN service area, the SMF:
  • the SMF When the SMF receives downlink data or data notification from the UPF, it triggers a network triggered service request procedure for the LADN PDU session to activate the UP connection.
  • the SMF When the SMF receives downlink data or data notification from the UPF, it triggers a network triggered service request procedure for the LADN PDU session to activate the UP connection.
  • a UE having subscriber information permitted to use a wildcard DNN has a problem of receiving all LADN information provided by the visited network every registration / LADN information update.
  • the present invention proposes an optimization method of LADN information transmission.
  • the present invention may be configured together in one or more combinations of the following configurations, and in the following embodiments, an embodiment for showing each individual configuration is illustrated, but an embodiment in which one or more combinations is configured together is possible.
  • FIG. 6 is a diagram illustrating a LADN information delivery method according to an embodiment of the present invention.
  • the UE displays a setting screen on the display 1187 for setting whether the user allows the LADN connection of the UE (or whether the LADN connection is desired). I can display it.
  • the UE may receive input from the user through the user input unit 1843 whether to allow the LADN connection of the UE (or whether the user wants the LADN connection).
  • the display 1187 when the display 1187 is implemented as a touch screen and functions as a user input unit 1843 and provides an output interface between the UE and the user, the display 1187 may be configured by touch input on a setting screen. A user may receive an input from the user whether to allow LADN access of the corresponding UE (or whether a LADN connection is desired).
  • the UE may store the settings input from the user (that is, whether to allow LADN connection (or whether a LADN connection is desired)) in the memory 1880.
  • the setting of whether to allow the LADN connection (or whether the user wants to connect to the LADN) may be maintained until the user's input is changed (that is, the permission is changed to disallowed or disallowed).
  • the UE may determine whether to create a PDU session of the LADN according to the configuration.
  • the UE does not perform a PDU session establishment procedure for creating a PDU session of the LADN even when entering the LADN service area. You may not.
  • the UE if the UE is configured to allow (or want to connect to) the LADN of the UE from the user, the UE establishes a PDU session establishment procedure (or registration process) for creating a PDU session of the LADN when entering the LADN service area. And PDU session establishment procedure).
  • FIG. 7 is a diagram illustrating a setting method for LADN access according to an embodiment of the present invention.
  • a setting menu for enabling / disabling (or allowing) a service (eg, LADN service) ( 711 may be displayed on the display 1187, and a button 712 for selecting activation / inactivity from the user may be displayed.
  • a service eg, LADN service
  • the button 712 may be a toggle button or a flip-flop button as shown in FIG. 7A, or may be an allow (or active) button and a block (or inactive) button. However, this is merely an example and may be displayed as another type of button for user selection.
  • the setting screen may also display a setting menu for allowing (activating) such as WiFi, Bluetooth, and mobile data, and may be displayed in each setting menu such as WiFi, Bluetooth, and mobile data.
  • the button for receiving selection of active / inactive from the user may be displayed.
  • the setting screen of the UE may move as shown in FIG. have.
  • a setting screen 720 for setting whether to allow LADN access for each service individually (or whether LADN access is desired) may be displayed on the display 1187. have.
  • One or more LADN service names 721 are displayed on the setting screen 720, and a button 722 for selecting whether to allow or not access to the corresponding LADN service for each LADN service is selected by the user. ) May be displayed.
  • the button 722 may be a toggle button or a flip-flop button, as shown in FIG. 7B, or may be an allow (or active) button and a block (or inactive) button. However, this is merely an example and may be displayed as another type of button for user selection.
  • a preset LADN service in the UE may be displayed according to the policy of the operator to which the UE is subscribed. Alternatively, the LADN service that the UE has experienced service to date may be indicated. Alternatively, if an application (App: application) is provided for each LADN service, the LADN service for the App stored in the UE may be displayed. As such, when providing an app for each LADN service, the setting screen 720 may be individually configured for each app. In this case, the user may select whether to allow / block access of the corresponding LADN service through the button 722 on the setting screen 720 for each app.
  • App application
  • the LADN service provided by the serving network node / AMF may be displayed on the setting screen 720.
  • the UE may register LADN information (eg, LADN) provided from a serving network node (eg, AMF) through a registration process (eg, an attach procedure or a registration procedure) with a network.
  • LADN information eg, LADN
  • AMF serving network node
  • DNN s
  • service area information for each LADN DNN are obtained.
  • the UE establishes a general PDU session (eg, an Internet Protocol (IP) Multimedia Subsystem (IMS) PDU session for a voice service and / or an Internet PDU session for an Internet service). ), You can get the service.
  • IP Internet Protocol
  • IMS Internet Multimedia Subsystem
  • a policy regarding LADN discovery may be pre-configured to the UE in advance.
  • the UE may receive a policy regarding LADN discovery (or a policy regarding LADN discovery request) (hereinafter referred to as LADN discovery policy) through a PCF which is a node that sets / controls / manages a provider policy.
  • LADN discovery policy a policy regarding LADN discovery (or a policy regarding LADN discovery request)
  • PCF a node that sets / controls / manages a provider policy.
  • the PCF may determine whether to generate or provide a LADN discovery policy based on an input of LADN DN / AF or NEF, as in step 2a or 2b.
  • the LADN discovery policy may be generated for the entire group of PLMNs or according to a specific unit managed by an operator. Or, because it is delivered to the individual UE by the UE policy delivery mechanism, it can be regarded as one of several kinds of UE policy, and therefore, LADN discovery policy may be generated in unit-specific granularity.
  • the LADN discovery policy is basically transmitted for the purpose of allowing the UE to start performing LADN discovery.
  • the LADN discovery policy may include a validity condition for evaluating that the corresponding LADN discovery policy is a meaningful policy in a specific region / specific time / specific access network.
  • LADN information which is always provided by the prior art in step 1 may not be delivered to the UE, and at a specific time by the LADN discovery policy, the UE attempts LADN discovery to acquire LADN information, thereby causing LADN information. Can increase the efficiency of the provision.
  • the LADN discovery policy may also include a policy on an operation that can be performed by the UE, such as whether to retry the acquisition of the LADN information when the UE fails to acquire the LADN information.
  • a method of delivering the LADN discovery policy to the UE in step 2 will be described in more detail with reference to FIG. 8 below.
  • FIG. 8 is a diagram illustrating a policy delivery method for LADN discovery according to an embodiment of the present invention.
  • the policy delivery method for the LADN discovery may be implemented by a UE configuration update procedure.
  • the UE Configuration Update procedure is initiated when the PCF wants to update UE access and PDU session selection information (ie UE policy) in UE configuration.
  • the AMF receives a policy control get response message (ie, Npcf_AMPolicyControlGet Response) from the PCF.
  • the Npcf_AMPolicyControlGet Response may include access and mobility related information, or may include a UE policy container (ie, UE access and PDU session selection related information) or both.
  • the Npcf_AMPolicyControlGet Response (in particular, the UE policy container) may include a LADN discovery policy according to the present invention.
  • the AMF receives a policy control update notification (ie, Npcf_AMPolicyControl UpdateNotify) from the PCF.
  • Npcf_AMPolicyControl UpdateNotify may include access and mobility related information, or may include a UE policy container (ie, UE access and PDU session selection related information) or both.
  • the Npcf_AMPolicyControlGet Response (in particular, the UE policy container) may include a LADN discovery policy according to the present invention.
  • the AMF triggers a Network Triggered Service Request (see 3GPP TS 23.502 V15.1.0 section 4.2.3.3) procedure. If the UE is not reachable, the AMF reports to the PCF that the UE policy container cannot be delivered to the UE.
  • the AMF transparently transmits the UE policy container received from the PCF to the UE.
  • the UE policy container includes a list of PSI (s) to notify the UE that one or more Public Service Identity (PSI) has been added, removed or modified.
  • PSI Public Service Identity
  • the UE performs the PSI operation and sends a result to the AMF.
  • the AMF transparently transmits the result received from the UE to the PCF. If one or several PSU operations fail, the UE includes a list of PSI (s) stored in the UE policy container.
  • the AMF forwards the UE's response to the PCF using an event exposure message (ie, Namf_EventExposure).
  • Namf_EventExposure includes an event identifier "EventID” that is "a policy container has been received” and an event information (EventInformation) including a UE policy container.
  • the PCF confirms to the AMF that it has received Namf_EventExposure.
  • the UE may recognize its location and display a LADN serviceable area on the screen based on the location information of the UE.
  • the UE (eg, the mobile terminal 1800 of FIG. 18) displays a map on the display 1187 (eg, displays a map with a constant radius based on the location of the user / UE), and displays the map on the map.
  • the border and / or color may be used to indicate a service area where a LADN is possible so that the user can recognize it.
  • the UE also displays brief information about the service provided by the corresponding LADN when the LADN capable service area displayed on the map or when the LADN capable service area is selected by the user (for example, touch input). You may. This will be described in more detail with reference to the drawings below.
  • FIGS. 9 and 10 are diagrams illustrating a method of displaying a LADN serviceable area and information according to an embodiment of the present invention.
  • the UE When the service application is executed by the user input, or when the UE (for example, the mobile terminal 1800 of FIG. 18) moves to the LADN serviceable area, the UE displays a map on the display 1871 as shown in FIG. 9. I can display it.
  • the UE may display the location of the user (ie, the location of the UE) 904 on the map.
  • the UE may move a map displayed on the display 1187 according to a user's touch and / or drag input on the display 1187 in the up, down, left, and right directions. Maps can be scaled up or down.
  • the UE may display the service area (that is, the area where the LADN service is provided) 901, 902, and 903 of the LADN on the map. At this time, the color of the service area may be displayed differently for each LADN service.
  • the UE displays a map on the display 1187, whether the user individually permits LADN access for one or more LADN services available in the region where the UE is located (or whether the user wants LADN access).
  • the setting screen for setting whether or not may be displayed on the display 1187.
  • One or more LADN service names 911 are displayed on the setting screen, and a button 912 for receiving selection from the user as to whether or not to allow access to the corresponding LADN service for each LADN service is displayed on the display 1187.
  • a button 912 for a specific LADN service is selected from a user, an operation for receiving information on the corresponding LADN service (steps 5a to 5b of FIG. 6) may be performed.
  • the button 912 may be a toggle button or a flip-flop button as shown in FIG. 9, or may be an allow (or active) button and a block (or inactive) button. It is merely an example and may be displayed as another type of button for user selection.
  • a UE for example, the mobile terminal 1800 of FIG. 18
  • receives a service area of a specific LADN from a user eg, receives a touch input from the user
  • the selected LADN service area e.g.
  • Information eg, LADN service name, provided LADN service (s), billing information of provided LADN service of provided LADN, etc.
  • FIG. LADN information received through steps 5a through 5b of 6 ie, FIG. LADN information received through steps 5a through 5b of 6
  • a button 1001 for selecting a user from a user who wants to receive LADN service provided in the selected LADN service area ie, permits the corresponding LADN service
  • the button 1000 may be an allow (or active) button and a block (or inactive) button as shown in FIG. 10, or may be a toggle button or a flip-flop button. It is merely an example and may be displayed as another type of button for user selection.
  • the UE may display a certain status screen (for example, an icon or a notification window) to inform the user that the LADN has entered the service area. And the like) can be displayed on the display unit 1871.
  • a certain status screen for example, an icon or a notification window
  • Such a status screen may have a different shape, display type (for example, blinking), color, and the like compared to a status screen indicating whether the LADN is being accessed.
  • the shape, display form (for example, blinking), color, and the like of the status display may be different depending on the number of LADNs that the UE can connect to in the region.
  • each status screen (for example, an icon or a notification window) may be displayed on the display 1187 according to the number of connectable LADNs.
  • the UE may display on the display 1187 a list form for each LADN (or services that can be provided by each LADN).
  • the UE may receive a selection through the user input 1187 from which the user wants to connect the PDU session to which LADN (ie, what LADN the user wants to receive).
  • activation ie acknowledgment of PDU session setup for that LADN from the user's point of view
  • inactivity ie, corresponding LADN from the user's point of view
  • PDU session setup rejection for may be selected.
  • the UE displays a map on the display 1187 (for example, displays a map of a predetermined radius based on the location of the user / UE), and enables LADN using a boundary line and / or color on the map.
  • the service area can be displayed for the user to recognize.
  • the UE also displays brief information about the service provided by the corresponding LADN when the LADN capable service area displayed on the map or when the LADN capable service area is selected by the user (for example, touch input). You may.
  • the UE may display on the screen that the UE has entered the LADN service area so that the user can know it. This will be described in more detail with reference to the drawings below.
  • 11 and 12 illustrate a method for notifying entry into a LADN service area according to an embodiment of the present invention.
  • the display unit 1831 status bar An icon 1101 may be displayed to indicate that the user has entered the LADN service area.
  • the icon 1101 may have a different shape from the icon displayed when the LADN is being connected (that is, receiving LADN service).
  • the display may be the same shape but different display forms.
  • the icon blinks when the user enters the LADN service area, but the icon may be displayed without blinking when the LADN is connected.
  • the shape, display form (for example, blinking), color, and the like of a status display may be different according to the number of LADNs that can be connected at the location of the UE. .
  • a status window (for example, such a status window may be displayed by a user dragging from the upper status bar to the lower one) 1200 may be provided at a location of the current UE.
  • the service name 1201 for the above LADN service may be displayed.
  • each service name 1201 may have a function of a toggle button. That is, each time a service name is selected, the state of allowing / blocking of the corresponding LADN service may be switched.
  • the color of the service name text may be changed according to the allow / block state so that the user may check the allow / block state. For example, the service name text may be displayed in black in the allowed state, but the service name text may be displayed in light gray in the blocked state.
  • the LADN service that can be provided at the location of the UE may change, so the LADN icon or LADN service name 1201 displayed in the status window 1200 of FIG. 12 may be changed depending on the location of the UE. It may be displayed or disappeared within the window 1200.
  • the UE displays a map on the display 1187 (eg, displays a map with a predetermined radius based on the location of the user / UE), and uses a boundary line and / or color on the map.
  • LADN can be displayed so that the user can recognize the service area.
  • the UE also displays brief information about the service provided by the corresponding LADN when the LADN capable service area displayed on the map or when the LADN capable service area is selected by the user (for example, touch input). You may.
  • step 4 if a validity condition of the LADN discovery policy is satisfied (that is, determining to discover LADN information), the UE receives a procedure for receiving LADN information from the AMF (that is, 5a to 5A). Start step 5b).
  • the user / user interacts with the explicit user interaction. May initiate a procedure (ie, steps 5a-5b) for receiving LADN information from the AMF.
  • the UE sends a registration request to the AMF.
  • the UE transmits an access network (AN) message including a registration request to the (R) AN.
  • the (R) AN transmits an N2 message including a registration request to the selected AMF.
  • the UE may include information / indicator (or flag) for notifying the explicit LADN information request in addition to the registration request.
  • the UE may request only LADN information supporting a service from a corresponding AMF (that is, AMF receiving a registration request of step 5a), or may request LADN information commonly applied to all PLMNs. That is, the UE may transmit a request for only LADN information supporting a service in a corresponding AMF or a separator for distinguishing a request for LADN information commonly applied to a PLMN to a AMF.
  • the level of requesting information depends on a policy / instruction that may be selectively included in the LADN discovery policy.
  • the UE may support LADN or implicit information delivery such as the user has a preference for using LADN. Through this, the UE can derive provisioning of LADN information from the network.
  • the UE may receive version information (eg, per UE and / or AMF and / or PLMN) of the LADN information previously received (eg, received in a previous registration procedure or UE setup update procedure). ) Can be included in the registration request and sent to the AMF.
  • version information eg, per UE and / or AMF and / or PLMN
  • the network eg, AMF
  • the UE receives a registration accept from the AMF. That is, the AMF transmits a registration accept message to the UE to indicate that the registration request has been accepted. In other words, the AMF transmits an N2 message including a registration accept to the (R) AN. The (R) AN transmits an AN message including a registration accept to the UE.
  • the registration accept includes LADN information.
  • the LADN information may mean a list of one or more LADNs available to the UE in the registration area. Each entry included in the LADN list may include LADN service area information and LADN DNN.
  • the AMF may provide only the LADN information of a LADN service supporting the service to the UE.
  • the AMF may provide the UE with LADN information commonly applied to the PLMN.
  • the AMF is updated with respect to the received version information. Only extracted LADN information may be extracted and provided to the UE.
  • Steps 5a to 5b described above may be implemented according to a registration procedure defined in 3GPP TS 23.502 V15.1.0 section 4.2.2.2, and other steps not shown in FIG. 6 according to the above registration procedure. Steps may also be performed.
  • the UE may display the received LADN information on the screen so that the user can recognize. This will be described in more detail with reference to the drawings below.
  • FIG. 13 and 14 illustrate a method of displaying information on a LADN service according to an embodiment of the present invention.
  • a validity condition of the LADN discovery policy may be If satisfied (ie, determining LADN information discovery), the UE may initiate a procedure (ie, steps 5a-5b) for receiving LADN information from the AMF.
  • a procedure for receiving LADN information from the AMF ie, steps 5a through 5b may be initiated.
  • the UE may display a notification window 1300 indicating that a specific LADN service has entered a service area on the display 1187.
  • the notification window 1300 may display information about the LADN service (eg, LADN service name, LADN service (s) provided, billing information of LADN service provided, etc. of the provided LADN).
  • the LADN information received in step 5b may be displayed.
  • a button 1301 may be displayed for selecting from the user whether the user wants to receive the corresponding LADN service in the notification window 1300 (that is, whether to allow the corresponding LADN service).
  • the button 1301 may be an allow (or active) button and a block (or inactive) button as shown in FIG. 11, or may be a toggle button or a flip-flop button. It is merely an example and may be displayed as another type of button for user selection.
  • the UE may initiate a procedure (ie, steps 5a through 5b) for receiving LADN information from the AMF.
  • a procedure for receiving LADN information from the AMF ie, steps 5a through 5b may be initiated.
  • the UE may display a Short Message Service (SMS) notification message 1400 indicating that a specific LADN service has entered a service area on the display 1187. That is, the UE may display the notification message 1400 received from the SMS server on the display 1187.
  • SMS Short Message Service
  • the notification message 1400 may display information on the LADN service (for example, the LADN service name, the provided LADN service (s), and billing information of the provided LADN service of the provided LADN).
  • the LADN information received in step 5b may be displayed.
  • the hyperlink 1401 may be displayed to be selected by the user whether the user wants to receive the corresponding LADN service in the notification message 1400 (that is, whether to allow the corresponding LADN service).
  • the hyperlink 1201 is selected (for example, when the hyperlink 1401 is touched by the user)
  • a website for the corresponding LADN service service is displayed on the display 1187 and the user can select the corresponding LADN service. You can also choose whether to allow it on the website.
  • such a hyperlink 1401 may not be displayed, and when the user transmits a predetermined number (or predetermined message on the notification message 1400) as a response message in response to the notification message 1400, the user may respond to the notification.
  • a message indicating that the LADN service is allowed may be delivered to the LADN service server. Referring back to FIG. 6, 6.
  • the UE performs a UE-initiated PDU session establishment procedure for the corresponding LADN service. Set up / establish a PDU session.
  • the UE may start a procedure for requesting PDU session setup (ie, UE-initiated PDU session establishment procedure) without user interaction based on the preset LADN access permission information.
  • the UE may display a pop-up window for receiving an explicit input for the actual connection / service start from the user according to the operator's setting / policy.
  • the UE Upon receiving an input for actual access / service start from the user, the UE establishes / establishes a PDU session for the corresponding LADN service by performing a UE-initiated PDU session establishment procedure.
  • the UE may receive such explicit input at an application level through a LADN related application from a user.
  • the UE may display a pop-up window on the display 1187 so that the user can receive an input for the actual connection to the corresponding LADN or the start of service of the corresponding LADN.
  • the UE may display a notification message indicating that the actual connection to the LADN requesting the corresponding PDU session setup or the service provided by the LADN is started.
  • the UE may also display information on a LADN (or a service provided by LADN) requesting a PDU session setup in a pop-up window.
  • the UE may provide the LADN service from the LADN DN / AF. If a PDU session setup is requested to start, the UE may display the above popup window. In this case, the UE may inform the pop-up window with information and / or notes about the LADN (or services provided by LADN) requesting the PDU session setup (for example, items that may be restricted by using such LADN service). I can display it.
  • the UE may also display the billing information together in a popup window when connecting to the LADN requesting the PDU session setup (or starting the service provided by the LADN).
  • the charging information may be charging information limited to the corresponding service, or may be comprehensive charging information linked with other services.
  • the UE Upon receiving the PDU session setup request from the LADN DN / AF, the UE displays a notification window 1300 as shown in FIG. 13 or a notification message 1400 as shown in FIG. 14 to inform that a request for a specific LADN service has been received. 1871).
  • the notification window 1300 or the notification message 1400 includes information on the LADN service (for example, LADN service name, LADN service (s) provided, billing information of LADN service provided, etc. of the provided LADN). ) May be displayed.
  • LADN information received by the UE in step 5b can be displayed.
  • a button 1101 may be displayed to select from the user whether the user wants to provide the corresponding LADN service in the notification window 1300 (that is, whether to allow the corresponding LADN service).
  • the button 1301 may be an allow (or active) button and a block (or inactive) button as shown in FIG. 11, or may be a toggle button or a flip-flop button. It is merely an example and may be displayed as another type of button for user selection.
  • a hyperlink 1401 may be displayed to be selected by a user whether the user wants to receive the corresponding LADN service in the notification message 1400 (that is, whether to allow the corresponding LADN service).
  • the hyperlink 1401 is selected (for example, when the hyperlink 1401 is touched by the user), a website for the corresponding LADN service service is displayed on the display 1187 and the user can select the corresponding LADN service. You can also choose whether to allow it on the website.
  • such a hyperlink 1401 may not be displayed, and when the user transmits a predetermined number (or predetermined message on the notification message 1400) as a response message in response to the notification message 1400, the user may respond to the notification.
  • a message indicating that the LADN service is allowed may be sent to the LADN service server.
  • the UE may display, on the display unit 1831, information indicating the area where the LADN service is available together with the map display.
  • the UE can indicate whether the UE is currently accessing the LADN so that the user can know.
  • the UE may display a status screen (eg, an icon, a notification window, etc.) indicating whether the UE is currently accessing the LADN on the display 1187.
  • a status screen eg, an icon, a notification window, etc.
  • the UE may display on the display 1187 a status screen (eg, an icon, a notification window, etc.) indicating that the LADN is connecting to the LADN. Can be.
  • the UE may display a status screen (eg, an icon, a notification window, etc.) indicating that the UE is not connected to the LADN.
  • an essential message such as a warning message or the like may be transmitted to the UE in a network (LADN DN / AF), and the UE may display this pop-up message on the display 1187.
  • the LADN is displayed on the status bar of the display 1871 as shown in FIG. 11.
  • An icon 1101 may be displayed to indicate that the user is accessing (or receiving LADN service).
  • the icon 1101 may have a different shape from the icon displayed when entering the service area where the LADN service is available as described above.
  • the display may be the same shape but different display forms.
  • the icon blinks when the user enters the LADN service area, but the icon may be displayed without blinking when the LADN is connected.
  • a shape, a display form (for example, blinking), a color, and the like of a state display may be different according to the number of LADNs to which the UE is connected.
  • At least one LADN service currently provided by the UE in the status window (for example, such a status window may be displayed by the user dragging from the top status bar to the bottom) 1200 as shown in FIG. 12.
  • the service name 1201 for may be displayed.
  • the LADN service name may be different from the LADN service name display that can be provided at the location of the UE.
  • the service name text for the LADN service that can be provided at the location of the UE is displayed while blinking, but the service name text for the LADN service currently provided by the UE may be displayed without blinking.
  • each service name 1201 may have a function of a toggle button. That is, each time a service name is selected, the state of allowing / blocking of the corresponding LADN service may be switched.
  • the color of the service name text may be changed according to the allow / block state so that the user may check the allow / block state. For example, the service name text may be displayed in black in the allowed state, but the service name text may be displayed in light gray in the blocked state.
  • the UE displays a notification window (or a notification message) indicating that the LADN connection has failed (or declined). 1871).
  • the AMF determines that the UE has left the established LADN service area, the AMF notifies that the UE has left the LADN service area, and the UE displays a notification window (or a notification message) to inform the user that the user has left the LADN service area. 1871).
  • the UE may recognize its own location and recognize the departure of the LADN service area, and then display a notification window (or a notification message) on the display 1187 for notifying the user.
  • the SMF when the SMF decides to release or deactivate a LADN session, the SMF notifies the UE that the LADN session has been released or deactivated via AMF, and the UE notifies the LADN session.
  • a notification window (or a notification message) for notifying the user may be displayed on the display 1187.
  • the UE may distinguish between the LADN session release and the deactivation, and may display a notification window (or a notification message) on the display 1187 for notifying the user of two cases in different forms.
  • deactivation of the PDU session may not be delivered to the UE in a NAS message indicating an explicit PDU session release, and the UE's AS layer acknowledges the release of a particular radio duration resource. . Accordingly, the NAS layer of the UE reports an event related to a specific radio duration resource release received from the AS layer, and then recognizes a temporary PDU session deactivation without an explicit NAS message. Therefore, even in such a case, since the UE can distinguish between LADN session release and deactivation, the UE can display a notification window (or a notification message) on the display 1187 for notifying the user in two different forms.
  • the notification window 1300 as shown in FIG. 13 or the notification message 1400 as shown in FIG. 14 may be displayed on the display 1187.
  • the user can distinguish whether the LADN PDU session creation request is rejected by the network node, the LADN leaves the service area, or when the LADN session is released, or when the LADN session is deactivated.
  • the contents of the message displayed on the notification window 1300 as shown in FIG. 13 or the notification message 1400 as shown in FIG. 14 may be different.
  • the icon or LADN service name for the corresponding LADN may disappear from the status window 1200 of FIG.
  • the status window 1200 as shown in FIG.
  • the icon or LADN service name for all LADNs may disappear.
  • the icon 1101 for indicating that the LADN is accessing (or receiving LADN service) from the status bar of FIG. 11 may disappear.
  • 15 is a diagram illustrating a method of using LADN according to an embodiment of the present invention.
  • the UE may set a policy regarding LADN discovery (S1501).
  • the policy regarding the discovery of the LADN may be pre-configured to the UE. Alternatively, it may be set by receiving a policy regarding LADN discovery generated by the PCF from the AMF.
  • a policy regarding LADN discovery may be determined (generated) independently for each UE.
  • the UE transmits a registration request to the AMF (S1502).
  • the registration request includes information for informing the request for LADN information for the LADN service.
  • the registration request may be a delimiter for distinguishing a request for only LADN information supporting a service from the AMF or a request for LADN information commonly applied to a PLMN (Public Land Mobile Network) and / or previously received LADN information. Version information may further include.
  • PLMN Public Land Mobile Network
  • a registration request may be transmitted to the AMF. For example, when a validity condition included in a policy regarding LADN discovery is satisfied or when the UE recognizes that it has entered a LADN service area (at the time LADN service is provided), the UE The discovery of LADN information can be determined.
  • the UE receives a registration accept for notifying that the registration request has been accepted from the AMF (S1503).
  • Registration acceptance includes LADN information.
  • the registration acceptance may include only LADN information supporting a service in AMF or LADN information commonly applied to a PLMN.
  • the registration acceptance may include only the LADN information whose version is updated compared to the version information of the LADN information.
  • the UE establishes a PDU session for the LADN service by performing a PDU session establishment procedure (S1504).
  • FIG. 16 illustrates a block diagram of a terminal according to an embodiment of the present invention.
  • the terminal may include a LADN policy setting unit 1601, a registration manager 1602, a LADN information manager 1603, and a PDU session manager 1604.
  • the LADN policy setting unit 1601 sets a policy regarding LADN discovery.
  • the policy regarding the discovery of the LADN may be pre-configured to the UE. Alternatively, it may be set by receiving a policy regarding LADN discovery generated by the PCF from the AMF.
  • a policy regarding LADN discovery may be determined (generated) independently for each UE.
  • the registration manager 1602 transmits a registration request to the AMF.
  • the registration request includes information for informing the request of the LADN information for the LADN service.
  • the registration request may be a delimiter for distinguishing a request for only LADN information supporting a service from the AMF or a request for LADN information commonly applied to a PLMN (Public Land Mobile Network) and / or previously received LADN information. Version information may further include.
  • PLMN Public Land Mobile Network
  • the LADN policy setting unit 1601 when a policy for LADN discovery is set by the LADN policy setting unit 1601, when the LADN policy setting unit 1601 determines a discovery of LADN information based on a policy regarding LADN discovery.
  • the registration manager 1602 may transmit a registration request to the AMF.
  • the LADN policy setting unit 1601 may satisfy a validity condition included in a policy regarding LADN discovery, or the UE enters into a LADN service area (when a LADN service is provided).
  • the registration manager 1602 may determine discovery of the LADN information.
  • the registration management unit 1602 receives a registration accept to notify that the registration request has been accepted from the AMF.
  • Registration acceptance includes LADN information.
  • the registration acceptance may include only LADN information supporting a service in AMF or LADN information commonly applied to a PLMN.
  • the registration acceptance may include only the LADN information whose version is updated compared to the version information of the LADN information.
  • the LADN information manager 1603 manages LADN information obtained through the registration manager 1602.
  • the PDU session manager 1604 performs a PDU session establishment procedure.
  • the PDU session manager 1604 may establish a PDU session for the LADN service by interworking with the LADN information manager 1603.
  • FIG. 17 illustrates a block diagram of a terminal according to an embodiment of the present invention.
  • a terminal 1710 includes a processor 1711, a memory 1712, and a transceiver (or radio frequency (RF) unit) 1713.
  • RF radio frequency
  • the processor 1711 implements the functions, processes, and / or methods proposed in FIGS. 1 to 15. In particular, each component of the terminal illustrated in FIG. 16 may be included in the processor 1711. Layers of the wired or wireless interface protocol may be implemented by the processor 1711.
  • the memory 1712 is connected to the processor 1711 and stores various information for driving the processor 1711.
  • the transceiver 1713 is connected to the processor 1711 to transmit and / or receive a radio signal.
  • the memory 1712 may be inside or outside the processor 1711 and may be connected to the processor 1711 by various well-known means.
  • the processor 1711 may set a policy regarding LADN discovery.
  • a policy regarding LADN discovery may be pre-configured in memory 1712.
  • processor 1711 may receive a policy regarding LADN discovery generated by the PCF from AMF via transceiver 1013.
  • a policy regarding LADN discovery may be determined (generated) independently for each UE.
  • the processor 1711 transmits a registration request to the AMF through a transceiver 1713.
  • the registration request includes information for informing the request for LADN information for the LADN service.
  • the registration request may be a delimiter for distinguishing a request for only LADN information supporting a service from the AMF or a request for LADN information commonly applied to a PLMN (Public Land Mobile Network) and / or previously received LADN information. Version information may further include.
  • PLMN Public Land Mobile Network
  • the transceiver 1713 determines the discovery of LADN information based on the policy for LADN discovery
  • the transceiver 1713 The registration request can be sent to the AMF. For example, when the validity condition included in the policy regarding LADN discovery is satisfied or when the UE recognizes that it has entered the LADN service area (at the time the LADN service is provided), the processor 1711. ) May determine the discovery of LADN information.
  • the processor 1711 also receives a registration accept from the AMF via the transceiver 1713 to indicate that the registration request has been accepted. Registration acceptance includes LADN information.
  • the registration acceptance may include only LADN information supporting a service in AMF or LADN information commonly applied to a PLMN.
  • the registration acceptance may include only the LADN information whose version is updated compared to the version information of the LADN information.
  • the processor 1711 establishes a PDU session for the LADN service by performing a PDU session establishment procedure.
  • the mobile terminal ie, UE
  • the mobile terminal includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, personal digital assistants, a portable multimedia player (PMP), Navigation, slate PC, tablet PC, ultrabook, wearable device (e.g., smart watch, smart glass, HMD (head) mounted display)). Furthermore, it may be used for controlling at least one in an Internet of Things (IoT) environment or a smart greenhouse.
  • IoT Internet of Things
  • FIG. 18 is a block diagram illustrating a mobile terminal according to the present invention.
  • the mobile terminal 1800 includes a transceiver 1830, a processor 1820, a memory 1880, a sensing unit 1850, an output unit 1870, an interface unit 1860, an input unit 1840, and a power supply unit 1810. ) May be included.
  • the components shown in FIG. 18 are not essential to implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than those listed above.
  • the transmitting and receiving device 1830 of the components, between the mobile terminal 1800 and the wireless communication system, between the mobile terminal 1800 and another mobile terminal 1800, or the mobile terminal 1800 and the external server It may include one or more modules that enable wireless communication therebetween.
  • the transceiver 1830 may include one or more modules for connecting the mobile terminal 1800 to one or more networks.
  • the transceiver 1830 may include at least one of a broadcast receiving module 1831, a mobile communication module 1832, a wireless internet module 1833, a short range communication module 1834, and a location information module 1835. .
  • the input unit 1840 may include a camera 1841 or an image input unit for inputting an image signal, a microphone 1842 for inputting an audio signal, or an audio input unit and a user input unit 1843 for receiving information from a user, for example. , Touch keys, mechanical keys, and the like.
  • the voice data or the image data collected by the input unit 1840 may be analyzed and processed as a user's control command.
  • the sensing unit 1850 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information.
  • the sensing unit 1850 may include a proximity sensor 1185, an illumination sensor 1852, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity.
  • Optical sensors e.g. cameras (see 1842)), microphones (see 1842), battery gauges, environmental sensors (e.g.
  • the mobile terminal disclosed herein may use a combination of information sensed by at least two or more of these sensors.
  • the output unit 1870 is used to generate an output related to visual, auditory, or tactile senses, and includes at least one of a display unit 1831, an audio output unit 1872, a hap tip module 1873, and an optical output unit 1874. can do.
  • the display 1187 forms a layer structure with or is integrally formed with the touch sensor, thereby implementing a touch screen.
  • the touch screen may function as a user input unit 1843 that provides an input interface between the mobile terminal 1800 and the user, and may also provide an output interface between the mobile terminal 1800 and the user.
  • the interface unit 1860 serves as a path to various types of external devices connected to the mobile terminal 1800.
  • the interface unit 1860 connects a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio input / output (I / O) port, a video input / output (I / O) port, and an earphone port.
  • the mobile terminal 1800 may perform appropriate control related to the connected external device.
  • the memory 1880 stores data supporting various functions of the mobile terminal 1800.
  • the memory 1880 may store a plurality of application programs or applications that are driven by the mobile terminal 1800, data for operating the mobile terminal 1800, and instructions. At least some of these applications may be downloaded from an external server via wireless communication.
  • at least some of these application programs may exist on the mobile terminal 1800 from the time of shipment for basic functions (for example, a call forwarding, a calling function, a message receiving, and a calling function) of the mobile terminal 1800.
  • the application program may be stored in the memory 1880 and installed on the mobile terminal 1800 to be driven by the processor 1820 to perform an operation (or function) of the mobile terminal.
  • the processor 1820 typically controls the overall operation of the mobile terminal 1800 in addition to the operations associated with the application.
  • the processor 1820 may provide or process information or a function appropriate to a user by processing signals, data, information, or the like input or output through the above-described components, or by running an application program stored in the memory 1880.
  • the processor 1820 may control at least some of the components described with reference to FIG. 18 to drive an application program stored in the memory 1880. In addition, the processor 1820 may operate by combining at least two or more of the components included in the mobile terminal 1800 to drive the application program.
  • the power supply unit 1810 receives power from an external power source and an internal power source under the control of the processor 1820 to supply power to each component included in the mobile terminal 1800.
  • the power supply unit 1810 includes a battery, which may be a built-in battery or a replaceable battery.
  • At least some of the components may operate in cooperation with each other to implement an operation, control, or control method of the mobile terminal according to various embodiments described below.
  • the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 1880.
  • the broadcast reception module 1831 of the transceiver 1830 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.
  • the broadcast channel may include a satellite channel and a terrestrial channel.
  • Two or more broadcast receiving modules may be provided to the mobile terminal 1800 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.
  • the mobile communication module 1832 may include technical standards or communication methods (eg, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), and EV.
  • GSM Global System for Mobile communication
  • CDMA Code Division Multi Access
  • CDMA2000 Code Division Multi Access 2000
  • EV Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), LTE-A It transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network constructed according to Long Term Evolution-Advanced (3GPP) and 3GPP NR (New Radio access technology).
  • 3GPP Long Term Evolution-Advanced
  • 3GPP NR New Radio access technology
  • the wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.
  • the wireless internet module 1833 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 1800.
  • the wireless internet module 1833 is configured to transmit and receive wireless signals in a communication network according to wireless internet technologies.
  • wireless Internet technologies include Wireless LAN (WLAN), Wireless-Fidelity (Wi-Fi), Wireless Fidelity (Wi-Fi) Direct, Digital Living Network Alliance (DLNA), Wireless Broadband (WiBro), and WiMAX (World).
  • the internet module 1833 transmits and receives data according to at least one wireless internet technology in a range including the internet technologies not listed above.
  • the wireless Internet access is performed through a mobile communication network.
  • the module 1833 may be understood as a kind of the mobile communication module 1832.
  • the short range communication module 1834 is for short range communication, and includes Bluetooth TM, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and NFC. (Near Field Communication), at least one of Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus) technology can be used to support short-range communication.
  • the short-range communication module 1834 may be provided between a mobile terminal 1800 and a wireless communication system, between a mobile terminal 1800 and another mobile terminal 1800, or through a wireless area network. ) And a network in which another mobile terminal 1800 (or an external server) is located.
  • the short range wireless communication network may be short range wireless personal area networks.
  • the other mobile terminal 1800 is a wearable device capable of exchanging (or interworking) data with the mobile terminal 1800 according to the present invention (eg, smartwatch, smart glasses). (smart glass), neckband, head mounted display (HMD).
  • the short range communication module 1834 may sense (or recognize) a wearable device that can communicate with the mobile terminal 1800 around the mobile terminal 1800.
  • the processor 1820 may include at least a portion of data processed by the mobile terminal 1800 in the short range communication module ( The transmission may be transmitted to the wearable device through 1834. Therefore, a user of the wearable device may use data processed by the mobile terminal 1800 through the wearable device. For example, according to this, when a call is received by the mobile terminal 1800, the user performs a phone call through the wearable device, or when a message is received by the mobile terminal 1800, the received through the wearable device. It is possible to check the message.
  • the near field communication module 1834 performs screen mirroring with a display located in a home or a car, for example, and performs a function based on, for example, a MirrorLink or Miracast standard.
  • the mobile terminal 1800 may be used to directly control a display inside a TV or a vehicle.
  • the location information module 1835 is a module for obtaining the location (or current location) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module.
  • GPS Global Positioning System
  • Wi-Fi Wireless Fidelity
  • the mobile terminal may acquire the location of the mobile terminal using a signal transmitted from a GPS satellite.
  • the mobile terminal may acquire the location of the mobile terminal based on information of the wireless access point (AP) transmitting or receiving the Wi-Fi module and the wireless signal.
  • AP wireless access point
  • the location information module 1835 may perform any function of other modules of the transceiver device 1830 to substitute or additionally obtain data regarding the location of the mobile terminal.
  • the location information module 1835 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.
  • Each of the broadcast receiving module 1831, the mobile communication module 1832, the short-range communication module 1834, and the location information module 1835 may be implemented as a separate module for performing a corresponding function, the broadcast receiving module 1831, Functions corresponding to two or more of the mobile communication module 1832, the short range communication module 1834, and the location information module 1835 may be implemented by one module.
  • the input unit 1840 is for inputting image information (or signal), audio information (or signal), data, or information input from a user.
  • the mobile terminal 1800 is one for inputting image information.
  • a plurality of cameras 1841 may be provided.
  • the camera 1840 processes an image frame such as a still image or a video obtained by an image sensor in a video call mode or a photographing mode.
  • the processed image frame may be displayed on the display 1187 or stored in the memory 1880.
  • the plurality of cameras 1841 provided in the mobile terminal 1800 may be arranged to form a matrix structure, and through the camera 1841 forming the matrix structure, the mobile terminal 1800 may have various angles or focal points.
  • the plurality of pieces of image information may be input.
  • the plurality of cameras 1841 may be arranged in a stereo structure to acquire a left image and a right image for implementing a stereoscopic image.
  • the microphone 1882 processes an external sound signal into electrical voice data.
  • the processed voice data may be utilized in various ways according to a function (or a running application program) being performed in the mobile terminal 1800. Meanwhile, various noise reduction algorithms may be implemented in the microphone 1842 to remove noise generated in the process of receiving an external sound signal.
  • the user input unit 1843 is for receiving information from a user. When the information is input through the user input unit 1843, the processor 1820 may control the operation of the mobile terminal 1800 to correspond to the input information. .
  • the user input unit 1843 may be a mechanical input unit (or a mechanical key, for example, a button, a dome switch, a jog wheel, or the like located at the front or rear or side of the mobile terminal 1800). Jog switch, etc.) and touch input means.
  • the touch input means may include a virtual key, a soft key, or a visual key displayed on the touch screen through a software process, or a portion other than the touch screen. It may be made of a touch key disposed in the.
  • the virtual key or the visual key may be displayed on the touch screen while having various forms, for example, graphic, text, icon, video, or the like. It can be made of a combination of.
  • the sensing unit 1850 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a sensing signal corresponding thereto.
  • the processor 1820 may control the driving or operation of the mobile terminal 1800 or perform data processing, function or operation related to an application program installed in the mobile terminal 1800 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit 1850 will be described in more detail.
  • the proximity sensor 1851 refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays.
  • the proximity sensor 1831 may be disposed in an inner region of the mobile terminal covered by the touch screen described above or near the touch screen.
  • the proximity sensor 1851 examples include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, an infrared proximity sensor, and the like.
  • the proximity sensor 1851 may be configured to detect the proximity of the object with the change of the electric field according to the proximity of the conductive object.
  • the touch screen (or touch sensor) itself may be classified as a proximity sensor.
  • the proximity touch an action of allowing the object to be recognized without being in contact with the touch screen so that the object is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching an object on a screen is called a "contact touch.”
  • the position at which the object is in close proximity touch on the touch screen means a position where the object is perpendicular to the touch screen when the object is in close proximity touch.
  • the proximity sensor 1831 may detect a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). have.
  • the processor 1820 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern detected through the proximity sensor 1831 as described above, and further, provides visual information corresponding to the processed data. It can be output on the touch screen. Furthermore, the processor 1820 may control the mobile terminal 1800 to process different operations or data (or information) according to whether the touch on the same point on the touch screen is a proximity touch or a touch touch. .
  • the touch sensor senses a touch (or touch input) applied to the touch screen (or the display unit 1871) using at least one of various touch methods such as a resistive film method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method. do.
  • the touch sensor may be configured to convert a change in pressure applied to a specific portion of the touch screen or capacitance generated at the specific portion into an electrical input signal.
  • the touch sensor may be configured to detect a position, an area, a pressure at the touch, a capacitance at the touch, and the like, when the touch object applying the touch on the touch screen is touched on the touch sensor.
  • the touch object is an object applying a touch to the touch sensor and may be, for example, a finger, a touch pen or a stylus pen, a pointer, or the like.
  • the touch controller processes the signal (s) and then transmits the corresponding data to the processor 1820.
  • the processor 1820 may determine which area of the display 1187 is touched.
  • the touch controller may be a separate component from the processor 1820 or may be the processor 1820 itself.
  • the processor 1820 may perform different control or perform the same control according to the type of the touch object that touches the touch screen (or a touch key provided in addition to the touch screen). Whether to perform different control or the same control according to the type of touch object may be determined according to the current operating state of the mobile terminal 1800 or an application program being executed.
  • the touch sensor and the proximity sensor described above may be independently or combined, and may be a short (or tap) touch, a long touch, a multi touch, a drag touch on a touch screen. ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, etc. A touch can be sensed.
  • the ultrasonic sensor may recognize location information of a sensing object using ultrasonic waves.
  • the processor 1820 may calculate the position of the wave generation source based on information detected by the optical sensor and the plurality of ultrasonic sensors.
  • the position of the wave source can be calculated using the property that the light is much faster than the ultrasonic wave, that is, the time that the light reaches the optical sensor is much faster than the time when the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generation source may be calculated using a time difference from the time when the ultrasonic wave reaches the light as the reference signal.
  • the camera 1841 which has been described as the configuration of the input unit 1840, includes at least one of a camera sensor (eg, CCD, CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.
  • a camera sensor eg, CCD, CMOS, etc.
  • a photo sensor or an image sensor
  • a laser sensor e.g., a laser sensor
  • the camera 1841 and the laser sensor may be combined with each other to detect a touch of a sensing object with respect to a 3D stereoscopic image.
  • the photo sensor may be stacked on the display element, which is configured to scan the movement of the sensing object in proximity to the touch screen. More specifically, the photo sensor mounts a photo diode and a transistor (TR) in a row / column and scans contents mounted on the photo sensor by using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor calculates coordinates of the sensing object according to the amount of light change, and thus, the position information of the sensing object can be obtained.
  • TR transistor
  • the display 1187 displays (outputs) information processed by the mobile terminal 1800.
  • the display 1187 may display execution screen information of an application program driven by the mobile terminal 1800, or UI (User Interface) or Graphic User Interface (GUI) information according to the execution screen information. .
  • UI User Interface
  • GUI Graphic User Interface
  • the display 1187 may be configured as a stereoscopic display unit for displaying a stereoscopic image.
  • the stereoscopic display unit may be a three-dimensional display method such as a stereoscopic method (glasses method), an auto stereoscopic method (glasses-free method), a projection method (holographic method).
  • the sound output unit 1872 may output audio data received from the transceiving device 1830 or stored in the memory 1880 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like.
  • the sound output unit 1872 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed by the mobile terminal 1800.
  • the sound output unit 1872 may include a receiver, a speaker, a buzzer, and the like.
  • the haptic module 1873 generates various tactile effects that a user can feel.
  • a representative example of the tactile effect generated by the haptic module 1873 may be vibration.
  • the intensity and pattern of vibration generated by the haptic module 1873 may be controlled by user selection or setting of a processor. For example, the haptic module 1873 may synthesize different vibrations and output them or output them sequentially.
  • the haptic module 1873 may be used to stimulate pins that vertically move with respect to the contact skin surface, jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of electrodes, and electrostatic force.
  • Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.
  • the haptic module 1873 may not only transmit a tactile effect through direct contact, but also may implement a user to feel the tactile effect through a muscle sense such as a finger or an arm. Two or more haptic modules 1873 may be provided according to a configuration aspect of the mobile terminal 1800.
  • the light output unit 1874 outputs a signal for notifying occurrence of an event by using light of a light source of the mobile terminal 1800.
  • Examples of events generated in the mobile terminal 1800 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, and information reception through an application.
  • the interface unit 1860 serves as a path to all external devices connected to the mobile terminal 1800.
  • the interface unit 1860 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 1800, or transmits data within the mobile terminal 1800 to an external device.
  • the port, an audio input / output (I / O) port, a video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 1860.
  • the identification module is a chip that stores a variety of information for authenticating the usage rights of the mobile terminal 1800, a user identification module (UIM), subscriber identity module (SIM), universal user authentication And a universal subscriber identity module (USIM).
  • a device equipped with an identification module (hereinafter referred to as an 'identification device') may be manufactured in the form of a smart card. Accordingly, the identification device may be connected to the terminal 1800 through the interface unit 1860.
  • the interface unit 1860 may be a passage for supplying power from the cradle to the mobile terminal 1800 or may be input from the cradle by a user.
  • Various command signals may be passages for transmitting to the mobile terminal 1800.
  • Various command signals or power input from the cradle may operate as signals for recognizing that the mobile terminal 1800 is correctly mounted on the cradle.
  • the memory 1880 may store a program for operating the processor 1820, and may temporarily store input / output data (eg, a phone book, a message, a still image, a video, etc.).
  • the memory 1880 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.
  • the memory 1880 may be a flash memory type, a hard disk type, a solid state disk type, an SSD type, a silicon disk drive type, or a multimedia card micro type. ), Card-type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read It may include at least one type of storage medium of -only memory (PROM), programmable read-only memory (PROM), magnetic memory, magnetic disk and optical disk.
  • the mobile terminal 1800 may be operated in connection with a web storage that performs a storage function of the memory 1880 on the Internet.
  • the processor 1820 controls an operation related to an application program and generally the overall operation of the mobile terminal 1800. For example, when the state of the mobile terminal satisfies a set condition, the processor 1820 may execute or release a lock state that restricts input of a user's control command to applications.
  • the processor 1820 may perform control and processing related to voice call, data communication, video call, or the like, or may perform pattern recognition processing for recognizing handwriting or drawing input performed on a touch screen as text and images, respectively. Can be. Further, the processor 1820 may control any one or a plurality of components described above in order to implement various embodiments described below on the mobile terminal 1800 according to the present invention.
  • the power supply unit 1810 receives an external power source and an internal power source under the control of the processor 1820, and supplies power for operation of each component.
  • the power supply unit 1810 includes a battery, and the battery may be a built-in battery configured to be rechargeable, and may be detachably coupled to the terminal body for charging.
  • the power supply unit 1810 may include a connection port, and the connection port may be configured as an example of the interface 1860 to which an external charger for supplying power for charging the battery is electrically connected.
  • the power supply unit 1810 may be configured to charge the battery in a wireless manner without using the connection port.
  • the power supply 1810 may use at least one of an inductive coupling based on a magnetic induction phenomenon or a magnetic resonance coupling based on an electromagnetic resonance phenomenon from an external wireless power transmitter. Power can be delivered.
  • various embodiments of the present disclosure may be implemented in a recording medium readable by a computer or a similar device using, for example, software, hardware, or a combination thereof.
  • the mobile terminal can be extended to a wearable device that can be worn on the body beyond the user mainly holding in the hand.
  • wearable devices include a smart watch, a smart glass, a head mounted display (HMD), and the like.
  • HMD head mounted display
  • the wearable device may be configured to exchange (or interlock) data with another mobile terminal 1800.
  • the short range communication module 1834 may detect (or recognize) a wearable device that can communicate around the mobile terminal 1800. Further, when the detected wearable device is a device authorized to communicate with the mobile terminal 1800, the processor 1820 may display at least a portion of data processed by the mobile terminal 1800 through the short range communication module 1834. Can be sent to. Accordingly, the user may use data processed by the mobile terminal 1800 through the wearable device. For example, when a call is received by the mobile terminal 1800, it is possible to perform a phone call through the wearable device or to check the received message through the wearable device when a message is received by the mobile terminal 1800. .
  • FIG. 19 is a diagram illustrating a method of using LADN according to an embodiment of the present invention.
  • the AMF may transmit a policy regarding discovery of the LADN received from the PCF to the UE (S1901).
  • a policy regarding discovery of the LADN may be independently determined (created) for each UE.
  • the AMF receives a registration request from the UE (S1902).
  • the registration request includes information for informing the request for LADN information for the LADN service.
  • the AMF is a delimiter for distinguishing a request for only LADN information supporting a service from the AMF in a registration request or a request for LADN information commonly applied to a Public Land Mobile Network (PLMN) and / or a previously received LADN information. Check whether the version information is included (S1903).
  • PLMN Public Land Mobile Network
  • step S1903 If it is determined in step S1903 that the delimiter and / or version information is not included in the registration request, after performing the registration procedure of the prior art, AMF transmits a registration accept (registration accept) to inform the UE that the registration request has been accepted. (S1905).
  • Registration acceptance includes LADN information.
  • the LADN information may correspond to LADN information transmitted by the AMF to the UE according to the prior art.
  • the AMF determines the LADN information to be transmitted based on the delimiter and / or version information in addition to the registration procedure of the prior art (S 1904). .
  • the AMF may include only the LADN information supporting the service in the AMF in the registration acceptance or include the LADN information commonly applied to the PLMN in the registration acceptance. have.
  • the AMF may include only the LADN information whose version is updated compared to the version information of the received LADN information based on the version information of the LADN information.
  • the AMF when the registration request includes both the delimiter and the version information of the LADN information, the AMF operates as follows. If the delimiter indicates a request for only LADN information supporting a service in AMF, the AMF includes only the LADN information whose version is updated in the registration acceptance as compared to the version information of the LADN information received from the LADN information supporting the service in AMF. You can. Or, if the delimiter indicates a request for LADN information commonly applied to the PLMN, the AMF only accepts the LADN information whose version is updated compared to the version information of the received LADN information among the LADN information commonly applied to the PLMN. Can be included.
  • FIG. 20 illustrates a block diagram of a network node according to an embodiment of the present invention.
  • the network node may include a LADN policy manager 2001, a registration manager 2002, and a LADN information manager 2003.
  • the LADN policy management unit 2001 manages the policy regarding the LADN discovery received from the PCF, and transmits the policy regarding the LADN discovery to the UE through the registration management unit 2002.
  • a policy regarding discovery of the LADN may be independently determined (created) for each UE.
  • the registration manager 2002 receives a registration request from the UE.
  • the registration request includes information for informing the request for LADN information for the LADN service.
  • the LADN information management unit 2003 is a delimiter for distinguishing a request for only LADN information supporting a service from the AMF in a registration request or a request for LADN information commonly applied to a PLMN (Public Land Mobile Network). Check whether the version information of the received LADN information is included.
  • PLMN Public Land Mobile Network
  • the LADN information manager 2003 may transmit the LADN information transmitted by the AMF to the UE to the registration manager 2002 according to the related art.
  • the LADN information manager 2003 determines LADN information to be transmitted based on the delimiter and / or version information.
  • the LADN information management unit 2003 delivers only LADN information supporting services in the AMF to the registration management unit 2002 or transmits LADN information commonly applied to the PLMN. (2002).
  • the LADN information manager 2003 when the registration request includes the version information of the LADN information, the LADN information manager 2003 only registers the LADN information whose version is updated compared to the version information of the received LADN information based on the version information of the LADN information. 2002).
  • the LADN information management unit 2003 operates as follows. If the delimiter indicates a request for only LADN information supporting a service in the AMF, the LADN information management unit 2003 performs LADN information whose version is updated compared to the version information of the LADN information received from the LADN information supporting the service in the AMF. The bay may be forwarded to the registration manager 2002. Alternatively, when the delimiter indicates a request for LADN information commonly applied to the PLMN, the LADN information management unit 2003 performs a LADN whose version is updated compared to the version information of the received LADN information among the LADN information commonly applied to the PLMN. Only information may be transmitted to the registration manager 2002.
  • the registration manager 2002 transmits a registration accept to the UE for notifying that the registration request including the LADN information received from the LADN information manager 2003 has been accepted.
  • FIG. 21 illustrates a block diagram of a network node according to an embodiment of the present invention.
  • a network node 2110 includes a processor 2111, a memory 2112, and a transceiver 2113.
  • the processor 2111 implements the functions, processes, and / or methods proposed in FIGS. 1 to 6, 10, and 19.
  • each component of the network node illustrated in FIG. 20 may be included in the processor 2111.
  • Layers of the wired / wireless interface protocol may be implemented by the processor 2111.
  • the memory 2112 is connected to the processor 2111 and stores various information for driving the processor 2111.
  • the transceiver 2113 is connected to the processor 2111 to transmit and / or receive a radio signal.
  • the memory 2112 may be inside or outside the processor 2111 and may be connected to the processor 2111 by various well-known means.
  • the network entity illustrated in FIG. 1 may correspond.
  • the processor 2111 may transmit a policy regarding LADN discovery received from the PCF through the transceiver 2113 to the UE through the transceiver 2113.
  • a policy regarding discovery of the LADN may be independently determined (created) for each UE.
  • the processor 2111 receives a registration request from the UE through the transceiver 2113.
  • the registration request includes information for informing the request for LADN information for the LADN service.
  • the AMF is a delimiter for distinguishing a request for only LADN information supporting a service from the AMF in a registration request or a request for LADN information commonly applied to a Public Land Mobile Network (PLMN) and / or a previously received LADN information. Check if version information is included.
  • PLMN Public Land Mobile Network
  • the processor 2111 transmits a registration accept to the UE through the transceiver 2113 to indicate that the registration request has been accepted.
  • the processor 2111 transmits the registration acceptance including the LADN information.
  • the LADN information may correspond to LADN information transmitted by the AMF to the UE according to the prior art.
  • the processor 2111 determines LADN information to be transmitted based on the delimiter and / or version information.
  • the processor 2111 includes only the LADN information supporting the service in the AMF based on the delimiter in the registration acceptance or the LADN information commonly applied to the PLMN. Can be included in
  • the processor 2111 may include in the registration acceptance only LADN information whose version is updated based on the version information of the LADN information. .
  • the processor 2111 when the registration request includes both the delimiter and the version information of the LADN information, the processor 2111 operates as follows. If the delimiter indicates a request for only LADN information supporting the service in the AMF, the processor 2111 registers only the LADN information whose version is updated as compared to the version information of the LADN information received from the LADN information supporting the service in the AMF. Can be included in the acceptance. Alternatively, when the delimiter indicates a request for LADN information commonly applied to the PLMN, the processor 2111 may use only the LADN information whose version is updated as compared to the version information of the received LADN information among the LADN information commonly applied to the PLMN. It can be included in the acceptance of registration.
  • the wireless device includes a base station, a network node, a transmitting terminal, a receiving terminal, a wireless device, a wireless communication device, a vehicle, a vehicle equipped with an autonomous driving function, an unmanned aerial vehicle (UAV), an artificial intelligence (AI) module, Robots, Augmented Reality (AR) devices, Virtual Reality (VR) devices, MTC devices, IoT devices, medical devices, fintech devices (or financial devices), security devices, climate / environmental devices, or other areas of the fourth industrial revolution, or It may be a device related to the 5G service.
  • a drone may be a vehicle in which humans fly by radio control signals.
  • the MTC device and the IoT device are devices that do not require human intervention or manipulation, and may be smart meters, bending machines, thermometers, smart bulbs, door locks, various sensors, and the like.
  • a medical device is a device used to examine, replace, or modify a device, structure, or function used for diagnosing, treating, alleviating, treating, or preventing a disease, such as a medical device, a surgical device, ( In vitro) diagnostic devices, hearing aids, surgical devices, and the like.
  • the security device is a device installed to prevent a risk that may occur and maintain safety, and may be a camera, a CCTV, a black box, or the like.
  • the fintech device is a device that can provide financial services such as mobile payment, and may be a payment device or a point of sales (POS).
  • the climate / environmental device may mean a device for monitoring and predicting the climate / environment.
  • the terminal is a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, a slate PC, a tablet PC. (tablet PC), ultrabook, wearable device (e.g. smartwatch, glass glass, head mounted display), foldable device And the like.
  • the HMD is a display device of a type worn on the head and may be used to implement VR or AR.
  • each component or feature is to be considered optional unless stated otherwise.
  • Each component or feature may be embodied in a form that is not combined with other components or features. It is also possible to combine some of the components and / or features to form an embodiment of the invention.
  • the order of the operations described in the embodiments of the present invention may be changed. Some components or features of one embodiment may be included in another embodiment or may be replaced with corresponding components or features of another embodiment. It is obvious that the claims may be combined to form an embodiment by combining claims that do not have an explicit citation relationship in the claims or as new claims by post-application correction.
  • Embodiments according to the present invention may be implemented by various means, for example, hardware, firmware, software, or a combination thereof.
  • an embodiment of the present invention may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), FPGAs ( field programmable gate arrays), processors, controllers, microcontrollers, microprocessors, and the like.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • processors controllers, microcontrollers, microprocessors, and the like.
  • an embodiment of the present invention may be implemented in the form of a module, procedure, function, etc. that performs the functions or operations described above.
  • the software code may be stored in memory and driven by the processor.
  • the memory may be located inside or outside the processor, and may exchange data with the processor by various known means.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé d'utilisation d'un réseau local de données (LADN) dans un système de communication sans fil et un appareil correspondant. Plus particulièrement, un équipement utilisateur (UE) permettant d'établir une session d'unité de données de protocole (PDU) destinée à un service LADN dans le système de communication sans fil comprend : un module de communication ; une unité d'affichage ; une mémoire ; et un processeur permettant de commander le module de communication, l'unité d'affichage et la mémoire, le processeur pouvant comprendre : une unité de réglage de politique LADN permettant de définir une politique relative à une recherche de LADN ; une unité de gestion d'enregistrement permettant de transmettre une demande d'enregistrement à une fonction de gestion d'accès et de mobilité (AMF) par l'intermédiaire du module de communication, la demande d'enregistrement comprenant des informations permettant d'informer d'une demande d'informations LADN sur un service LADN ; une unité de gestion d'informations LADN permettant de gérer les informations LADN obtenues par l'intermédiaire de l'unité de gestion d'enregistrement ; et une unité de gestion de session PDU permettant d'établir une session PDU pour le service LADN par l'exécution d'une procédure d'établissement de session PDU.
PCT/KR2019/005614 2018-05-11 2019-05-10 Procédé d'utilisation de ladn dans un système de communication sans fil et appareil correspondant Ceased WO2019216683A1 (fr)

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KR20180054341 2018-05-11
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KR20180083642 2018-07-18

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2020060176A1 (fr) 2018-09-18 2020-03-26 Samsung Electronics Co., Ltd. Dispositif électronique servant à empêcher un abandon de paquet de transmission en liaison montante
EP3827641A4 (fr) * 2018-09-18 2021-09-08 Samsung Electronics Co., Ltd. Dispositif électronique servant à empêcher un abandon de paquet de transmission en liaison montante
US11147086B2 (en) 2018-09-18 2021-10-12 Samsung Electronics Co., Ltd. Electronic device for preventing packet drop for uplink transmission

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