WO2022014962A1 - Procédé d'affichage d'ui/ux en fonction d'une notification de situation de catastrophe d'un noeud ran, et dispositif prenant en charge celui-ci - Google Patents

Procédé d'affichage d'ui/ux en fonction d'une notification de situation de catastrophe d'un noeud ran, et dispositif prenant en charge celui-ci Download PDF

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Publication number
WO2022014962A1
WO2022014962A1 PCT/KR2021/008772 KR2021008772W WO2022014962A1 WO 2022014962 A1 WO2022014962 A1 WO 2022014962A1 KR 2021008772 W KR2021008772 W KR 2021008772W WO 2022014962 A1 WO2022014962 A1 WO 2022014962A1
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Prior art keywords
plmn
disaster
information
broadcast message
network
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PCT/KR2021/008772
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English (en)
Korean (ko)
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박상민
천성덕
김현숙
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엘지전자 주식회사
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Publication of WO2022014962A1 publication Critical patent/WO2022014962A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • 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 specification relates to a method for displaying a user interface (UI)/user eXperience (UX) according to a disaster situation notification of a radio access network (RAN) node, and an apparatus supporting the same.
  • UI user interface
  • UX user eXperience
  • 5G New Radio is a new radio access technology (RAT) developed by the 3rd Generation Partnership Project (3GPP) for a fifth generation (5G) mobile network. It is designed as a global standard for air interfaces in 5G networks.
  • 5G NR targets a single technology framework that covers all deployment scenarios, usage scenarios and requirements, including enhanced Mobile Broadband (eMBB), massive Machine Type-Communications (mMTC), Ultra-Reliable and Low Latency Communications (URLLC), etc. do it with 5G NR must be inherently forward compatible.
  • eMBB enhanced Mobile Broadband
  • mMTC massive Machine Type-Communications
  • URLLC Ultra-Reliable and Low Latency Communications
  • 3GPP Rel-17 in the event of a disaster, users who receive communication services from the communication service providers affected by the disaster can roam to the networks of other nearby communication service providers to minimize service interruption so that they can continue to receive communication services (MINT) ; Minimization of service interruption) is being discussed.
  • MINT communication services
  • a method may be required to quickly notify the user that a disaster has occurred to the user who was receiving service from the operator where the disaster occurred.
  • One aspect of the present specification is to provide a method and apparatus for displaying information about a disaster situation notified by a radio access network (RAN) node through a user interface (UI)/user eXperience (UX).
  • RAN radio access network
  • UX user interface/user eXperience
  • a method performed by a user equipment (UE) operating in a wireless communication system includes receiving an emergency broadcast message from a Radio Access Network (RAN) node.
  • the disaster broadcast message includes (i) first information indicating that a disaster condition is applied to a first Public Land Mobile Network (PLMN), and (ii) second information on a second PLMN related to the disaster condition.
  • the disaster condition is a problem in the interface between the RAN node and the core network associated with the first PLMN, and no broadcast message other than the disaster broadcast message is received from the RAN node.
  • the method includes displaying the first information and the second information.
  • an apparatus implementing the method is provided.
  • the present specification may have various effects.
  • disaster information provided by the RAN node may be effectively displayed to the user through the display.
  • the UE can effectively receive service without interruption of service even in the event of a disaster, thereby enhancing user experience and maintaining service continuity.
  • FIG. 1 shows an example of a 5G system architecture to which the implementation of the present specification is applied.
  • FIG 3 shows an example of a communication system to which the implementation of the present specification is applied.
  • FIG. 4 shows an example of a UE to which the implementation of the present specification is applied.
  • FIG 5 shows an example of a wireless device to which the implementation of the present specification is applied.
  • FIG. 6 shows an example of a method performed by a UE to which the implementation of the present specification is applied.
  • FIG. 10 shows another example of UI/UX to which the implementation of the present specification is applied.
  • CDMA Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Frequency Division Multiple Access
  • Carrier Frequency Division Multiple Access and MC-FDMA (Multi-Carrier Frequency Division Multiple Access) systems.
  • CDMA may be implemented through a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
  • TDMA may be implemented through a radio technology such as Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), or Enhanced Data rates for GSM Evolution (EDGE).
  • OFDMA may be implemented through a wireless technology such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or Evolved UTRA (E-UTRA).
  • UTRA is part of the Universal Mobile Telecommunications System (UMTS).
  • 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE) is a part of Evolved UMTS (E-UMTS) using E-UTRA.
  • 3GPP LTE uses OFDMA in downlink (DL) and SC-FDMA in uplink (UL).
  • Evolution of 3GPP LTE includes LTE-A (Advanced), LTE-A Pro, and/or 5G New Radio (NR).
  • the implementation of the present specification is mainly described in relation to a 3GPP-based wireless communication system.
  • the technical characteristics of the present specification are not limited thereto.
  • the following detailed description is provided based on a mobile communication system corresponding to the 3GPP-based wireless communication system, but aspects of the present specification that are not limited to the 3GPP-based wireless communication system may be applied to other mobile communication systems.
  • FIG. 1 shows an example of a 5G system architecture to which the implementation of the present specification is applied.
  • the 5G system (5GS; 5G System) structure consists of the following network functions (NF; Network Functions).
  • Data Network e.g. operator services, Internet access or third-party services
  • FIG. 1 shows a 5G system architecture in a non-roaming case using a reference point representation that shows how various network functions interact with each other.
  • UDSF, NEF and NRF have not been described in FIG. 1 for clarity of the point-to-point diagram. However, all network functions shown can interact with UDSF, UDR, NEF and NRF as needed.
  • connection between the UDR and other NFs is not shown in FIG. 1 .
  • connection between NWDAF and other NFs is not shown in FIG. 1 .
  • the 5G system architecture includes the following reference points.
  • - N1 the reference point between the UE and the AMF.
  • a RAN node such as a gNB or eNB (including ng-eNB in a 5G system) or a non-3GPP (non-3GPP) connection in a 5G system that provides a radio connection in the 3GPP system, is A characteristic or a parameter related to a radio section is broadcast through a System Information Block (SIB).
  • SIB System Information Block
  • the configuration of the SIB or information included in the SIB is different for each SIB.
  • the UE selects one of the Public Land Mobile Networks (PLMNs) that are physically accessible from the location where the UE is located.
  • PLMNs Public Land Mobile Networks
  • a telecommunication service provider installs multiple wired networks in the core network section (eg, multiple wired networks between AMF and SMF) and continues communication services using other wired networks even if a problem occurs in one wired network.
  • the communication service provider may install a plurality of core network nodes such as AMF, so that even if a problem occurs in one core network node, another core network node performs a backup to prevent communication services from being disconnected.
  • the most effective way to prevent disconnection of communication services in the event of a disaster is to use roaming. That is, if the communication service cannot be received from the communication service provider to which the user has subscribed due to the occurrence of a disaster, disconnection of the communication service can be prevented by roaming to a network of another nearby communication service provider to receive the communication service. More specifically, each telecommunication service provider may actively install a wireless network and a core network in an area (eg, one country) in which it is licensed. Since different carriers may build networks in different ways and/or install core network nodes in different buildings, a disaster may not affect all carriers equally. That is, it may be less likely that a problem occurring in one communication service provider will also occur in another communication service provider.
  • the roaming operator can accommodate the disaster operator's subscribers by broadcasting the PLMN identifier of the disaster operator.
  • the PLMN identifier of the disaster operator is registered in the core network of the roaming operator, and the wireless network broadcasts the PLMN identifier by recording the PLMN identifier in the SIB message, and through the core network between operators Traffic may be transmitted to each other.
  • Each operator has a core network node (e.g. MME, S-GW) for disaster roaming in order to accommodate its subscribers roaming to third parties in the event of their own communications disasters and/or to accommodate third-party subscribers to their own in the event of third-party communications disasters.
  • P-GW core network node
  • the system should be ready to accept roaming calls through advance network interworking between operators, and in the event of a communication disaster, it can accommodate roaming calls between operators by taking follow-up measures according to the occurrence standards. Preliminary and follow-up measures may follow the agreement between business operators.
  • MINT is applied in an Evolved Packet System (EPS) as an example, but MINT may also be applied in a 5G system.
  • EPS Evolved Packet System
  • - Disaster Condition A condition that the government decides when to start and end (eg natural disaster). When this condition applies, users have the opportunity to mitigate service disruptions and failures.
  • Mobile networks may not be able to provide services in the event of a disaster (eg fire).
  • 5GS could provide the ability to mitigate service disruptions. If there is a PLMN operator ready to provide the service, the UE can receive service from the PLMN operator in case of a disaster. MINT is limited to a specific time and place. To reduce the impact on 5G systems that support disaster roaming, potential congestion due to inbound or outbound disaster inbound roamers is considered.
  • the 3GPP system may enable UEs in a given PLMN to obtain connectivity services (eg voice calls, mobile data services) from other PLMNs for areas covered by disaster conditions.
  • connectivity services eg voice calls, mobile data services
  • the 3GPP system may enable the UE to obtain information that a disaster condition is applied to a specific PLMN.
  • the UE When the UE obtains information that there is no coverage for the Home PLMN (HPLMN) and that the disaster condition applies to the HPLMN of the UE, the UE may register with the PLMN that provides the disaster roaming service.
  • HPLMN Home PLMN
  • the 3GPP system can support a means by which PLMN operators can recognize areas covered by disaster conditions.
  • the 3GPP system can support the provision of services for disaster inbound roamers only within a specific area to which disaster conditions apply.
  • a 3GPP system can provide an efficient means for the network to inform disaster inbound roamers that disaster conditions are no longer applicable.
  • the 3GPP system can support PLMN operators to be aware of the failure or recovery of other PLMN(s) in the same country when disaster conditions apply or when disaster conditions do not apply.
  • the 3GPP system may provide a means for the UE to access PLMNs on the forbidden PLMN list when disaster conditions apply and other PLMNs are unavailable except for those on the forbidden PLMN list. .
  • the 3GPP system may provide a means for a disaster condition to be applied to a UE of a specific PLMN.
  • the 3GPP system may provide a resource-efficient means for the PLMN to indicate to a potential disaster inbound roamer whether the potential disaster inbound roamer can access the PLMN.
  • the disaster inbound roamer can perform network reselection when the disaster condition ends.
  • the 3GPP system can minimize congestion due to disaster roaming.
  • the 3GPP system can collect billing information for disaster inbound roamers along with information on applied disaster conditions.
  • access identity number 4 may be applied. This configuration may be valid for a PLMN that indicates to a potential disaster inbound roamer that the UE can connect to the PLMN.
  • network selection may be performed according to the following.
  • the UE When switched on, when in the coverage of the last registered PLMN as stored in the Subscriber Identification Module (SIM)/Universal SIM (USIM), the UE is connected to the corresponding network.
  • SIM Subscriber Identification Module
  • USB Universal SIM
  • the UE may select an HPLMN. If the EHPLMN list exists, the UE may select the highest priority EHPLMN from among the available EHPLMNs. The operator can control the operation of the UE by the USIM setting.
  • EHPLMN Equivalent HPLMN
  • the UE is in manual network selection mode when switching on:
  • the UE may register with the corresponding HPLMN or EHPLMN.
  • the UE remains in manual network selection mode.
  • the UE may perform location update to the new location area if necessary.
  • the UE if the UE is in automatic network selection mode and it finds coverage of an HPLMN or EHPLMN, the UE sends it to the HPLMN (if there is no EHPLMN list) or the highest priority EHPLMN of the available EHPLMN (if there is an EHPLMN list). may register, and may not return to the last registered PLMN. If the EHPLMN list exists and is not empty, it can be used. The operator can control whether the UE supporting this option will follow this alternative operation by the USIM setting.
  • the default operation of the UE is to select the last registered PLMN.
  • the UE may follow one of the following procedures for network selection.
  • the UE shall determine if the location area is available and acceptable if the location area is not on the "forbidden LAs for roaming" list and the tracking area is not on the "forbidden TAs for roaming" list. You can select/try registration from other PLMNs in the following order.
  • EHPLMN For Preferred Access Technologies, in the order specified, EHPLMN if EHPLMN list exists or HPLMN (derived from International Mobile Subscriber Identity (IMSI) if EHPLMN list does not exist). If there are multiple EHPLMNs, the EHPLMN with the highest priority is selected.
  • IMSI International Mobile Subscriber Identity
  • the voice-capable UE may be configured not to attempt registration with the PLMN.
  • the allowable PLMN is a PLMN that is not in the forbidden PLMN data field of the SIM/USIM. This data field may be extended in Mobile Equipment (ME) memory.
  • the allowable PLMN is a PLMN that is not in the Forbidden PLMNs for GPRS service (PLMN) list of either the Forbidden PLMN data field of the SIM/USIM or the GPRS service of the ME.
  • PLMN GPRS service
  • this PLMN is the one that the UE is allowed to register while the disaster condition applies.
  • the UE may indicate the selected PLMN.
  • the UE may obtain user consent for the limited local operator service, and the UE has a preference for the limited local operator service stored in the ME.
  • a list of PLMNs is available. If the preferred PLMN for the limited local operator service is not available, the UE may select an available PLMN that provides the limited local operator service. If one of these PLMNs is selected for limited local operator service, the UE may indicate that selection. If no PLMN is selected, the UE waits until a new PLMN is detected or a new location area or tracking area of an allowed PLMN that is not in the forbidden LA list or the forbidden TA list is found, and then the procedure may be repeated .
  • the UE displays “no service” to the user and a new PLMN is detected or a banned LA list or a banned TA list After waiting until a new location area or tracking area of the allowed PLMN that is not present is found, the procedure can be repeated. If registration is not possible, another (discontinuous) PLMN search scheme can be used to minimize access time while maintaining battery life. For example, the search may be prioritized in favor of a Broadcast Control Channel (BCCH) carrier with a high probability of belonging to an available and acceptable PLMN.
  • BCCH Broadcast Control Channel
  • the UE may indicate available PLMNs, including forbidden PLMNs. It may also be displayed when no PLMN is available.
  • the user's HPLMN may provide the USIM with additional information about the available PLMNs, and if provided, the UE may present that information to the user. This information, provided in free text, may include:
  • the UE may indicate whether an available PLMN is present in one of the PLMN selector lists (eg EHPLMN, user-controlled, operator-controlled or prohibited) and whether it is not present in any of that list.
  • PLMN selector lists eg EHPLMN, user-controlled, operator-controlled or prohibited
  • MEs may use USIM-defined names if available, or use a different PLMN naming convention based on priority (country/PLMN indication).
  • HPLMN if no EHPLMN listing
  • EHPLMN if more than one EHPLMN is available, the EHPLMN with the highest available priority is presented to the user or all available EHPLMNs are presented to the user in priority order based on the optional data field in the USIM. If there is no data field, only the highest-priority EHPLMN available is displayed.
  • PLMNs in order of priority contained in the "Operator Controlled PLMM Selector" data field of the SIM/USIM
  • the user can select the desired PLMN, and the UE attempts to register with this PLMN (this can happen at any time during the presentation of the PLMN).
  • the UE may obtain user consent for limited local operator services, and may offer the user to select one of these networks. .
  • the UE indicates the selected PLMN, waits until a new PLMN is detected or a new location area or tracking area of an allowed PLMN that is not in the forbidden LA list or forbidden TA list is found, The procedure can be repeated.
  • the UE may indicate "no service".
  • the user can select a different or the same PLMN and try to register by following the procedure above.
  • the UE MUST NOT attempt to register with a PLMN not selected by the user.
  • the UE When a UE registers with a user-selected PLMN, the UE does not automatically register with another PLMN unless:
  • a new PLMN is declared as an equivalent PLMN by the registered PLMN;
  • the UE may add the corresponding PLMN to the list of prohibited PLMNs. Unless the user selects the same PLMN again, the UE shall not attempt to re-register with that network.
  • the UE If the PLMN is selected but the UE cannot register for the Packet Switched (PS) service because registration is rejected because of "GPRS services not allowed in this PLMN", the UE is Registration to E-UTRAN or UTRAN PS or GERAN (GSM EDGE Radio Access Network) PS shall not be attempted again.
  • the PLMN is added to the "Forbidden PLMNs for GPRS services" list. Unless the user selects the same PLMN again, the UE shall not retry registration with E-UTRAN or UTRAN PS or GERAN PS in that network.
  • CS Circuit Switched
  • the UE may attempt to register with the PLMN when a new LA (not in the forbidden LA list) of the selected PLMN is detected.
  • another (discontinuous) carrier search scheme may be used to minimize the time to find a new valid BCCH carrier and preserve battery life.
  • the search priority may be specified to favor the BCCH carrier of the registered PLMN.
  • the PLMN identifier may be recorded in a list of forbidden PLMNs stored in the data field of the SIM/USIM.
  • the PLMN may be deleted from the list. However, if a PLMN is successfully registered with a PLMN on the Prohibited PLMN List while the Disaster Condition is in effect, that PLMN may not be removed from the Prohibited PLMN List.
  • the UE When in automatic network selection mode, the UE may indicate any PLMN that will not be selected because it is present in the forbidden PLMN list.
  • this PLMN may be deleted from the equivalent PLMN list before being stored by the UE.
  • FIG 3 shows an example of a communication system to which the implementation of the present specification is applied.
  • the 5G usage scenario shown in FIG. 3 is only an example, and the technical features of the present specification may be applied to other 5G usage scenarios not shown in FIG. 3 .
  • the three main requirements categories for 5G are (1) enhanced Mobile BroadBand (eMBB) category, (2) massive Machine Type Communication (mMTC) category, and (3) ultra-reliable, low-latency communication. (URLLC; Ultra-Reliable and Low Latency Communications) category.
  • eMBB enhanced Mobile BroadBand
  • mMTC massive Machine Type Communication
  • URLLC Ultra-Reliable and Low Latency Communications
  • the communication system 1 includes wireless devices 100a to 100f , a base station (BS) 200 , and a network 300 .
  • 3 illustrates a 5G network as an example of the network of the communication system 1, the implementation of the present specification is not limited to the 5G system, and may be applied to future communication systems beyond the 5G system.
  • Base station 200 and network 300 may be implemented as wireless devices, and certain wireless devices may act as base station/network nodes in relation to other wireless devices.
  • the wireless devices 100a to 100f represent devices that perform communication using a radio access technology (RAT) (eg, 5G NR or LTE), and may also be referred to as a communication/wireless/5G device.
  • RAT radio access technology
  • the wireless devices 100a to 100f include, but are not limited to, a robot 100a, a vehicle 100b-1 and 100b-2, an extended reality (XR) device 100c, a portable device 100d, and a home appliance.
  • the product 100e may include an Internet-Of-Things (IoT) device 100f and an Artificial Intelligence (AI) device/server 400 .
  • a vehicle may include a vehicle with a wireless communication function, an autonomous vehicle, and a vehicle capable of performing vehicle-to-vehicle communication.
  • Vehicles may include Unmanned Aerial Vehicles (UAVs) (eg drones).
  • UAVs Unmanned Aerial Vehicles
  • XR devices may include Augmented Reality (AR)/Virtual Reality (VR)/Mixed Reality (MR) devices, and are mounted on vehicles, televisions, smartphones, computers, wearable devices, home appliances, digital signs, vehicles, robots, etc. It may be implemented in the form of a head-mounted device (HMD) or a head-up display (HUD).
  • Portable devices may include smartphones, smart pads, wearable devices (eg, smart watches or smart glasses), and computers (eg, laptops).
  • Home appliances may include TVs, refrigerators, and washing machines.
  • IoT devices may include sensors and smart meters.
  • the wireless devices 100a to 100f may be referred to as user equipment (UE).
  • a UE may be, for example, a mobile phone, a smartphone, a notebook computer, a digital broadcasting terminal, a Personal Digital Assistant (PDA), a Portable Multimedia Player (PMP), a navigation system, a slate PC, a tablet PC, an ultrabook, a vehicle, an autonomous driving function.
  • the UAV may be an aircraft that does not have a person on board and is navigated by a radio control signal.
  • the VR device may include a device for realizing an object or a background of a virtual environment.
  • the AR device may include a device implemented by connecting an object or background in a virtual world to an object or background in the real world.
  • the MR apparatus may include a device implemented by merging the background of an object or virtual world with the background of the object or the real world.
  • the hologram device may include a device for realizing a 360-degree stereoscopic image by recording and reproducing stereoscopic information using an interference phenomenon of light generated when two laser lights called a hologram meet.
  • the public safety device may include an image relay device or an image device that can be worn on a user's body.
  • MTC devices and IoT devices may be devices that do not require direct human intervention or manipulation.
  • MTC devices and IoT devices may include smart meters, vending machines, thermometers, smart light bulbs, door locks, or various sensors.
  • a medical device may be a device used for the purpose of diagnosing, treating, alleviating, treating, or preventing a disease.
  • a medical device may be a device used to diagnose, treat, alleviate, or correct an injury or injury.
  • a medical device may be a device used for the purpose of examining, replacing, or modifying structure or function.
  • the medical device may be a device used for pregnancy control purposes.
  • a medical device may include a device for treatment, a device for driving, an (ex vivo) diagnostic device, a hearing aid, or a device for a procedure.
  • a security device may be a device installed to prevent a risk that may occur and to maintain safety.
  • the security device may be a camera, closed circuit television (CCTV), recorder or black box.
  • the fintech device may be a device capable of providing financial services such as mobile payment.
  • a fintech device may include a payment device or a POS system.
  • the weather/environment device may include a device for monitoring or predicting the weather/environment.
  • the wireless devices 100a to 100f may be connected to the network 300 through the base station 200 .
  • AI technology may be applied to the wireless devices 100a to 100f , and the wireless devices 100a to 100f may be connected to the AI server 400 through the network 300 .
  • the network 300 may be configured using a 3G network, a 4G (eg, LTE) network, a 5G (eg, NR) network, and a 5G or later network.
  • the wireless devices 100a to 100f may communicate with each other through the base station 200/network 300, but communicate directly without going through the base station 200/network 300 (eg, sidelink communication) You may.
  • the vehicles 100b-1 and 100b-2 may perform direct communication (eg, Vehicle-to-Vehicle (V2V)/Vehicle-to-everything (V2X) communication).
  • the IoT device eg, a sensor
  • the IoT device may communicate directly with another IoT device (eg, a sensor) or other wireless devices 100a to 100f.
  • Wireless communications/connections 150a , 150b , 150c may be established between the wireless devices 100a - 100f and/or between the wireless devices 100a - 100f and the base station 200 and/or between the base station 200 .
  • wireless communication/connection includes uplink/downlink communication 150a, sidelink communication 150b (or D2D (Device-To-Device) communication), and inter-base station communication 150c (eg, relay, IAB (Integrated) communication).
  • Access and Backhaul can be established through various RATs (eg, 5G NR).
  • the wireless devices 100a to 100f and the base station 200 may transmit/receive wireless signals to/from each other through the wireless communication/connections 150a, 150b, and 150c.
  • the wireless communication/connection 150a , 150b , 150c may transmit/receive signals through various physical channels.
  • various configuration information setting processes for transmission/reception of radio signals various signal processing processes (eg, channel encoding/decoding, modulation/demodulation, resource mapping/demapping, etc.), and at least a part of a resource allocation process and the like may be performed.
  • AI refers to a field that studies artificial intelligence or methodologies that can make it
  • machine learning refers to a field that defines various problems dealt with in the field of artificial intelligence and studies methodologies to solve them.
  • Machine learning is also defined as an algorithm that improves the performance of a certain task through constant experience.
  • a robot can mean a machine that automatically handles or operates a task given by its own capabilities.
  • a robot having a function of recognizing an environment and performing an operation by self-judgment may be referred to as an intelligent robot.
  • Robots can be classified into industrial, medical, home, military, etc. depending on the purpose or field of use.
  • the robot may be provided with a driving unit including an actuator or a motor to perform various physical operations such as moving the robot joints.
  • the movable robot includes a wheel, a brake, a propeller, and the like in the driving unit, and may travel on the ground or fly in the air through the driving unit.
  • Autonomous driving refers to a technology that drives itself, and an autonomous driving vehicle refers to a vehicle that runs without or with minimal user manipulation.
  • autonomous driving includes technology that maintains a driving lane, technology that automatically adjusts speed such as adaptive cruise control, technology that automatically drives along a set route, and technology that automatically sets a route when a destination is set. Technology, etc. may all be included.
  • the vehicle includes a vehicle having only an internal combustion engine, a hybrid vehicle having both an internal combustion engine and an electric motor, and an electric vehicle having only an electric motor, and may include not only automobiles, but also trains, motorcycles, and the like.
  • Autonomous vehicles can be viewed as robots with autonomous driving capabilities.
  • Augmented reality refers to VR, AR, and MR.
  • VR technology provides only CG images of objects or backgrounds in the real world
  • AR technology provides virtual CG images on top of images of real objects
  • MR technology provides CG by mixing and combining virtual objects with the real world.
  • MR technology is similar to AR technology in that it shows both real and virtual objects.
  • AR technology a virtual object is used in a form that complements a real object
  • MR technology a virtual object and a real object are used with equal characteristics.
  • NR supports multiple numerology or subcarrier spacing (SCS) to support various 5G services. For example, when SCS is 15 kHz, it supports wide area in traditional cellular band, and when SCS is 30 kHz/60 kHz, dense-urban, lower latency and wider area are supported. It supports a wider carrier bandwidth, and when the SCS is 60 kHz or higher, it supports a bandwidth greater than 24.25 GHz to overcome the phase noise.
  • SCS subcarrier spacing
  • the NR frequency band may be defined as two types of frequency ranges (FR1, FR2).
  • the numerical value of the frequency range may change.
  • the frequency ranges of the two types (FR1, FR2) may be as shown in Table 1 below.
  • FR1 may mean "sub 6GHz range”
  • FR2 may mean “above 6GHz range”
  • mmW millimeter wave
  • FR1 may include a band of 410 MHz to 7125 MHz as shown in Table 2 below. That is, FR1 may include a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, a frequency band of 6GHz (or 5850, 5900, 5925 MHz, etc.) or higher included in FR1 may include an unlicensed band.
  • the unlicensed band can be used for a variety of purposes, for example, for communication for vehicles (eg, autonomous driving).
  • the wireless communication technology implemented in the wireless device of the present specification may include narrowband IoT (NB-IoT, NarrowBand IoT) for low-power communication as well as LTE, NR, and 6G.
  • NB-IoT technology may be an example of a Low Power Wide Area Network (LPWAN) technology, and may be implemented in standards such as LTE Cat NB1 and/or LTE Cat NB2, and is not limited to the above-mentioned name.
  • LPWAN Low Power Wide Area Network
  • the wireless communication technology implemented in the wireless device of the present specification may perform communication based on LTE-M technology.
  • the LTE-M technology may be an example of an LPWAN technology, and may be called by various names such as enhanced MTC (eMTC).
  • eMTC enhanced MTC
  • LTE-M technology is 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (Non-Bandwidth Limited), 5) LTE-MTC, 6) LTE MTC , and/or 7) may be implemented in at least one of various standards such as LTE M, and is not limited to the above-described name.
  • the wireless communication technology implemented in the wireless device of the present specification may include at least one of ZigBee, Bluetooth, and/or LPWAN in consideration of low-power communication, and limited to the above-mentioned names it is not
  • the ZigBee technology may create PANs (Personal Area Networks) related to small/low-power digital communication based on various standards such as IEEE 802.15.4, and may be called by various names.
  • FIG. 4 shows an example of a UE to which the implementation of the present specification is applied.
  • UE 100 includes processor 102 , memory 104 , transceiver 106 , one or more antennas 108 , power management module 110 , battery 112 , display 114 , keypad 116 , SIM a card 118 , a speaker 120 , and a microphone 122 .
  • the processor 102 may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein.
  • the processor 102 may be configured to control one or more other components of the UE 100 to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein.
  • a layer of air interface protocol may be implemented in the processor 102 .
  • Processor 102 may include an ASIC, other chipset, logic circuitry, and/or data processing device.
  • the processor 102 may be an application processor.
  • the processor 102 may include at least one of a digital signal processor (DSP), a central processing unit (CPU), a graphics processing unit (GPU), and a modem (modulator and demodulator).
  • DSP digital signal processor
  • CPU central processing unit
  • GPU graphics processing unit
  • modem modulator and demodulator
  • processor 102 SNAPDRAGON TM series made from Qualcomm® processor, EXYNOS TM series made from Samsung® processor, A series of processors made from Apple®, HELIO TM series processor made in MediaTek®, ATOM TM series processors made from Intel® or in the corresponding next-generation processor.
  • the memory 104 is operatively coupled to the processor 102 , and stores various information for operating the processor 102 .
  • Memory 104 may include read only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and/or other storage devices.
  • ROM read only memory
  • RAM random access memory
  • flash memory memory cards
  • storage media storage media
  • modules e.g., procedures, functions, etc.
  • Modules may be stored in memory 104 and executed by processor 102 .
  • the memory 104 may be implemented within the processor 102 or external to the processor 102 , in which case it may be communicatively coupled with the processor 102 through various methods known in the art.
  • the transceiver 106 is operatively coupled with the processor 102 and transmits and/or receives wireless signals.
  • the transceiver 106 includes a transmitter and a receiver.
  • the transceiver 106 may include baseband circuitry for processing radio frequency signals.
  • the transceiver 106 controls one or more antennas 108 to transmit and/or receive wireless signals.
  • the power management module 110 manages power of the processor 102 and/or the transceiver 106 .
  • the battery 112 supplies power to the power management module 110 .
  • the display 114 outputs the result processed by the processor 102 .
  • Keypad 116 receives input for use by processor 102 .
  • the keypad 116 may be displayed on the display 114 .
  • SIM card 118 is an integrated circuit for securely storing the IMSI and associated keys, and is used to identify and authenticate subscribers in mobile phone devices, such as mobile phones and computers. You can also store contact information on many SIM cards.
  • the speaker 120 outputs sound related results processed by the processor 102 .
  • Microphone 122 receives sound related input for use by processor 102 .
  • FIG 5 shows an example of a wireless device to which the implementation of the present specification is applied.
  • the wireless device may be implemented in various forms according to usage examples/services (refer to FIG. 3 ).
  • the wireless device 100 or 200 of FIG. 5 may correspond to the UE 100 of FIG. 4 .
  • each wireless device 100 , 200 may include a communication device 110 , a control device 120 , a memory device 130 , and an additional component 140 .
  • the communication device 110 may include communication circuitry 112 and a transceiver 114 .
  • the communication circuit 112 may include the processor 102 of FIG. 4 and/or the memory 104 of FIG. 4 .
  • the transceiver 114 may include the transceiver 106 of FIG. 4 and/or the antenna 108 of FIG. 4 .
  • the control device 120 is electrically connected to the communication device 110 , the memory device 130 , and the additional component 140 , and controls the overall operation of each wireless device 100 , 200 .
  • the control device 120 may control the electrical/mechanical operation of each of the wireless devices 100 and 200 based on the program/code/command/information stored in the memory device 130 .
  • the control device 120 transmits information stored in the memory device 130 to the outside (eg, other communication devices) via the communication device 110 through a wireless/wired interface, or a communication device ( 110), information received from an external (eg, other communication device) may be stored in the memory device 130 .
  • the additional component 140 may be variously configured according to the type of the wireless device 100 or 200 .
  • the additional components 140 may include at least one of a power unit/battery, input/output (I/O) devices (eg, audio I/O ports, video I/O ports), drive units, and computing devices.
  • I/O input/output
  • Wireless devices 100 and 200 include, but are not limited to, robots (100a in FIG. 3 ), vehicles ( 100b-1 and 100b-2 in FIG. 3 ), XR devices ( 100c in FIG. 3 ), and portable devices ( FIG. 3 ). 100d), home appliances (100e in FIG. 3), IoT devices (100f in FIG.
  • the wireless devices 100 and 200 may be used in a moving or fixed location according to usage examples/services.
  • all of the various components, devices/parts and/or modules of the wireless devices 100 and 200 may be connected to each other via a wired interface, or at least some of them may be wirelessly connected via the communication device 110 .
  • the control device 120 and the communication device 110 are connected by wire, and the control device 120 and the first device (eg, 130 and 140 ) are communication devices. It may be connected wirelessly through 110 .
  • Each component, device/portion, and/or module within the wireless device 100, 200 may further include one or more elements.
  • the control device 120 may be configured by one or more processor sets.
  • control device 120 may be configured by a set of a communication control processor, an application processor (AP), an electronic control unit (ECU), a graphic processing unit, and a memory control processor.
  • AP application processor
  • ECU electronice control unit
  • the memory device 130 may be configured by RAM, DRAM, ROM, flash memory, volatile memory, non-volatile memory, and/or a combination thereof.
  • a disaster may occur while the UE camps on the RAN and/or cell of the HPLMN and is normally receiving a service.
  • Disasters can occur on various aspects of a network.
  • a disaster may occur in the function of the core network or in the section between the core network and the RAN node. In this case, the following problems may occur in applying MINT and/or disaster roaming.
  • the 3GPP system should enable the UE to obtain information that a disaster condition is applied to a specific PLMN.
  • a disaster condition is applied to a specific PLMN.
  • the UE may periodically perform a PLMN search to reselect an HPLMN. If the UE does not move much, there is a high probability that the UE is still within the coverage of the RAN node (that is, the RAN node is still located within the coverage), and no disaster has occurred between the UE and the RAN node, so that the HPLMN is used in the PLMN selection process. can be exposed
  • the HPLMN has the highest priority in the PLMN selection process.
  • the registration procedure after selecting the HPLMN will naturally fail because a disaster has occurred in the section between the core network and the RAN node. As a result, this HPLMN selection has no meaning and may cause service interruption because the UE, which has been receiving roaming services through disaster roaming, unnecessarily performs PLMN selection.
  • the disaster occurrence information is effectively transmitted through the RAN node where the UE is receiving the service, so that the UE A method of minimizing the interruption of communication service provision for
  • a method for the UE to display the disaster occurrence information received from the RAN node through a UI (User Interface)/UX (User eXperience) is described.
  • the response method may vary depending on the type of disaster or an entity in the system that is inoperable due to the disaster.
  • the RAN node eg, eNB or gNB
  • a disaster occurs in some functions of the core network and/or in the section/interface between the RAN node and the core network.
  • the area where the service is stopped due to the occurrence of a disaster may be an area covered by the RAN node or an area covered by a core network node (eg, AMF) in which the disaster has occurred.
  • the UE and the terminal may be used interchangeably.
  • Various implementations and/or embodiments of the present specification to be described below may be applied to various services, for example, eMBB, V2X communication, public safety, IoT, and the like.
  • various implementations and/or embodiments of the present specification to be described below may be applied to various types of terminals, for example, smartphones, vehicles, IoT terminals, robots, and the like.
  • the network may set information to determine a disaster situation when the RAN node is installed.
  • the information may be set by OAM (Operation Administration Maintenance).
  • the information may be set by a keep alive mechanism.
  • the information may be set by exchanging information with a neighboring RAN node.
  • the information may include disaster roaming PLMN to which a user is sent in case of a disaster (PLMN that temporarily provides a service to users of a network in which a disaster occurs) and/or disaster recovery time information.
  • the RAN node that determines that a disaster situation has occurred according to the set information may stop all broadcasting (or broadcasting) and broadcast only the SIB including the disaster occurrence information.
  • the SIB including the disaster occurrence information may be a new SIB, SIBx, and/or a new component included in SIB1.
  • the disaster occurrence information may include information such as whether a disaster has occurred, a disaster occurrence PLMN and/or a disaster roaming provision PLMN.
  • the UE receiving the SIB including the disaster occurrence information may perform PLMN selection based on this.
  • the priority of the disaster occurrence PLMN may be set to the lowest priority in the PLMN selection process.
  • FIG. 6 shows an example of a method performed by a UE to which the implementation of the present specification is applied.
  • the method includes receiving a disaster broadcast message from the RAN node.
  • the disaster broadcast message includes (i) first information indicating that the disaster condition is applied to the first PLMN, and (ii) second information about the second PLMN related to the disaster condition.
  • the disaster condition is a problem in the interface between the RAN node and the core network associated with the first PLMN.
  • a broadcast message other than the emergency broadcast message is not received from the RAN node. That is, broadcasting of other broadcasting messages other than the disaster broadcasting message is stopped.
  • the first information may indicate that a service through the first PLMN is unavailable.
  • the first information may include a PLMN ID of the first PLMN.
  • the second information may include only a Mobile Network Code (MNC) among components of a PLMN ID of the second PLMN.
  • MNC Mobile Network Code
  • the second PLMN may be negotiated preferentially and/or may be predetermined according to national regulations.
  • the disaster broadcast message may include third information indicating disaster expected time information.
  • step S610 the method includes displaying the first information and the second information.
  • the disaster broadcast message includes the third information indicating disaster expected time information
  • the third information may also be displayed.
  • step S620 the method includes adjusting the priority of PLMN selection based on the first information and the second information.
  • the first information and/or the second information may be known as a Non-Access Stratum (NAS) layer of the UE.
  • NAS Non-Access Stratum
  • the third information may also be known to the NAS layer of the UE.
  • step S630 the method includes selecting the second PLMN according to the adjusted priority.
  • the priority of the second PLMN may be adjusted to be higher than that of the first PLMN.
  • the UE may communicate with at least one of a mobile device, a network and/or an autonomous vehicle other than the UE.
  • the method described from the perspective of the UE in FIG. 6 may be performed by the UE 100 illustrated in FIG. 4 and/or the wireless device 100 illustrated in FIG. 5 .
  • a UE includes one or more displays, one or more transceivers, one or more processors, and one or more memories operably coupled with the one or more processors.
  • the one or more memories store instructions to cause a next operation to be performed by the one or more processors.
  • the UE receives a disaster broadcast message from the RAN node through the one or more transceivers.
  • the disaster broadcast message includes (i) first information indicating that the disaster condition is applied to the first PLMN, and (ii) second information about the second PLMN related to the disaster condition.
  • the disaster condition is a problem in the interface between the RAN node and the core network associated with the first PLMN.
  • a broadcast message other than the disaster broadcast message is not received from the RAN node. That is, broadcasting of other broadcasting messages other than the disaster broadcasting message is stopped.
  • the first information may indicate that a service through the first PLMN is unavailable.
  • the first information may include a PLMN ID of the first PLMN.
  • the second information may include only the MNC among components of the PLMN ID of the second PLMN.
  • the second PLMN may be negotiated preferentially and/or may be predetermined according to national regulations.
  • the disaster broadcast message may include third information indicating disaster expected time information.
  • the UE displays the first information and the second information through the one or more displays.
  • the third information may also be displayed.
  • the UE adjusts the priority of PLMN selection based on the first information and the second information.
  • the first information and/or the second information may be known as a NAS layer of the UE.
  • the disaster broadcast message includes the third information indicating disaster expected time information
  • the third information may also be known to the NAS layer of the UE.
  • the UE selects the second PLMN according to the adjusted priority.
  • the priority of the second PLMN may be adjusted to be higher than that of the first PLMN.
  • the method described from the perspective of the UE in FIG. 6 is controlled by the processor 102 included in the UE 100 shown in FIG. 4 and/or the communication device included in the wireless device 100 shown in FIG. 5 ( 110) and/or may be performed under the control of the control device 120 .
  • a processing device operating in a wireless communication system includes one or more processors and one or more memory operably coupled with the one or more processors.
  • the one or more processors may include: obtaining a disaster broadcast message, wherein the disaster broadcast message includes (i) first information indicating that the disaster condition is applied to the first PLMN, and (ii) a second PLMN related to the disaster condition.
  • the disaster condition is a problem in the interface between the RAN node and the core network associated with the first PLMN, and broadcast messages other than the disaster broadcast message are not received from the RAN node, Displaying first information and the second information, adjusting a priority of PLMN selection based on the first information and the second information, and selecting the second PLMN according to the adjusted priority configured to perform an operation comprising the steps.
  • a network or a network operator operating the network may set disaster situation-related information that helps the RAN node determine a disaster situation in the process of installing the RAN node for the first time.
  • the disaster situation-related information may be set in the RAN node in the NG installation/and/or S1 installation procedure of the RAN node.
  • the network may set a condition that the RAN node can determine when a disaster occurs, that is, information related to the disaster condition to the RAN node.
  • the information related to the disaster condition may be set by the OAM.
  • the information related to the disaster condition may be set by a keep-alive mechanism. For example, it may be considered as a disaster condition that a basic keep-alive message does not respond for a certain period of time or longer.
  • the information related to the disaster condition may be set by exchanging information between neighboring RAN nodes connected through an Xn interface. can be done However, it should be distinguishable from the operation of a general RAN node.
  • the network may set PLMN information for disaster roaming to the RAN node when a disaster occurs.
  • the PLMN information for the disaster roaming may follow agreement between operators and/or national regulatory requirements.
  • the number of PLMNs for disaster roaming may be at least one or more.
  • the network may selectively set information related to the time when a service is stopped until the disaster situation is restored to the RAN node.
  • the time at which the service is stopped may be statistically derived and/or based on predictions.
  • the RAN node may detect a disaster situation according to the disaster situation related information received in the first implementation.
  • the RNA node may perform the following operations.
  • the RAN node may stop broadcasting of all broadcasting messages (eg, system information) currently being performed by the RAN node.
  • the broadcast message for which the broadcast is stopped may include all kinds of broadcast messages such as SIB and/or MIB (Master Information Block). This is to stop broadcasting of broadcast messages related to all capabilities because the RAN node cannot currently provide a service, and to prevent information of a PLMN provided with a service through the RAN node from being exposed to UEs within coverage.
  • the RAN node may broadcast disaster broadcast information instead of the broadcast message in which the broadcast is stopped.
  • the disaster broadcast information may be broadcast through a newly defined broadcast message (eg, SIB x) or may be broadcast as a new component of a conventional broadcast message (eg, SIB1).
  • the disaster broadcast information may include disaster situation occurrence information indicating that a current disaster has occurred. This is to allow the UE to recognize that the disaster condition is satisfied, so that the UE can attempt disaster roaming to a PLMN other than the current PLMN (eg, HPLMN). The UE may enter a mode for disaster roaming upon receiving the disaster situation occurrence information.
  • disaster situation occurrence information indicating that a current disaster has occurred. This is to allow the UE to recognize that the disaster condition is satisfied, so that the UE can attempt disaster roaming to a PLMN other than the current PLMN (eg, HPLMN).
  • the UE may enter a mode for disaster roaming upon receiving the disaster situation occurrence information.
  • the disaster situation occurrence information may be implicitly indicated only by whether the newly defined SIB x is broadcast.
  • the disaster situation occurrence information may be expressed as a 1-bit indicator or other explicit information.
  • the disaster situation occurrence information when expressed as a 1-bit indicator, it may be included in SIB1 or MIB and broadcast.
  • the disaster broadcast information may include disaster PLMN information.
  • the disaster PLMN information may indicate information that a service is unavailable due to a disaster occurring in the current PLMN.
  • the disaster PLMN information may be expressed as the disaster situation occurrence information. In this case, the UE may know that the service is unavailable in the current PLMN (eg, HPLMN).
  • the disaster PLMN information may be expressed as a PLMN ID of a PLMN that is currently unavailable.
  • a newly defined broadcast message eg, SIB x
  • information on which PLMN the service is unavailable is transmitted through the PLMN ID, thereby providing information to the UE whose PLMN is the HPLMN. can The UE receiving this may no longer consider the corresponding PLMN in the PLMN selection process when the RAN node informs the disaster PLMN information within coverage.
  • the disaster broadcast information may include disaster roaming PLMN information that the UE can generally select due to the occurrence of a disaster.
  • the disaster roaming PLMN may be based on a value set in the RAN node.
  • the number of disaster roaming PLMNs may be one or more.
  • the disaster roaming PLMN information may include only the MNC, omitting the MCC among Mobile Country Codes (MCC) and MNC, which are components of the PLMN ID.
  • MCC Mobile Country Codes
  • MNC Mobile Country Codes
  • the disaster roaming PLMN should be negotiated in advance and/or determined in advance according to the relevant national regulations.
  • the disaster broadcast information may include information on an expected service interruption time due to the occurrence of a disaster.
  • the UE may predict how long to exclude the HPLMN from the PLMN selection based on the service interruption expected time information.
  • the UE may receive the disaster broadcast information described in the second implementation above.
  • the RRC layer of the UE receives the disaster broadcast information from the RAN node that provides the HPLMN service, and when it no longer receives the previously received broadcast message, it can inform the higher layer (eg, NAS layer) of the disaster broadcast information. have. That is, the RRC layer may inform the NAS layer of disaster situation occurrence information, disaster PLMN information, disaster roaming PLMN information, and/or service interruption expected time information.
  • the higher layer eg, NAS layer
  • the RRC layer may inform the NAS layer of disaster situation occurrence information, disaster PLMN information, disaster roaming PLMN information, and/or service interruption expected time information.
  • the NAS layer which has received the disaster situation occurrence information, disaster PLMN information, disaster roaming PLMN information and/or service interruption expected time information, etc. from the RRC layer, includes information related to disaster roaming, including such information, to the upper layer. have.
  • the upper layer may display information related to disaster roaming to the user through the display as follows. In the description below, the display may correspond to the display 114 shown in FIG. 4 .
  • the UE currently receives a service from the UE and displays information about the PLMN through the display (“PLMN #1 (HPLMN)”).
  • PLMN #1 HPLMN
  • FIG. 8 shows a display after a disaster has occurred.
  • the UE when the UE receives the disaster situation occurrence information, the UE displays a message indicating that receiving the service from the HPLMN is no longer possible through the display so that the user can check (“NO SERVICE” and “There is a failure in the network”) has occurred”).
  • FIG. 9 shows a display after the disaster roaming service is started.
  • the UE by using the information provided by the NAS layer that received the disaster broadcast information provided by the RAN node from the AS layer, the UE displays information related to the disaster roaming service at the time of starting the disaster roaming service through the display. do.
  • Information related to the disaster roaming service at the time of starting the disaster roaming service may indicate the type of disaster that occurred in HPLMN ("The [HPLMN] network has failed due to a fire").
  • a message indicating that the disaster service will be started from the VPLMN may be displayed due to the disaster (“disaster service starts through the [VPLMN] network”).
  • FIG. 10 shows another example of UI/UX to which the implementation of the present specification is applied.
  • FIG. 10 shows a display during a disaster roaming service.
  • the UE by using the information provided by the NAS layer that received the disaster broadcast information provided by the RAN node from the AS layer, the UE displays information related to the disaster roaming service during the disaster roaming service through the display.
  • the first indicator may be displayed as information related to the disaster roaming service during the disaster roaming service.
  • the first indicator may indicate that the current UE is connected via a disaster roaming PLMN and/or is receiving a disaster roaming service via a disaster roaming PLMN.
  • the first indicator may shape the disaster situation (eg, “D” in FIG. 10 ).
  • the first indicator may be displayed to blink while the disaster roaming service is activated. Alternatively, the first indicator may be displayed to blink only for a predetermined time after the disaster roaming service is activated.
  • the first indicator may be displayed on an upper portion of the display.
  • the position where the first indicator is displayed on the display is merely an example, and the first indicator is displayed on the lower part of the display or the upper part of the display for a certain period of time only when the user inputs an input for confirming the first indicator Or it may be displayed on the lower part, etc.
  • the second indicator may be displayed as information related to the disaster roaming service during the disaster roaming service.
  • the second indicator may indicate the time of failure due to the disaster and/or the time that the failure due to the disaster is expected to continue and/or the time that the failure due to the disaster is expected to be recovered, provided by the RAN node.
  • the second indicator may be displayed in real time in seconds or minutes, and/or in approximate units of time (eg, in units of 10 minutes or 1 hour).
  • the second indicator may be displayed on the upper portion of the display.
  • the position where the second indicator is displayed on the display is merely an example, and the second indicator is displayed on the lower part of the display or the upper part of the display for a predetermined time only when the user inputs an input to check the second indicator. Or it may be displayed on the lower part, etc.
  • a third indicator may be displayed as information related to the disaster roaming service during the disaster roaming service.
  • the third indicator may indicate speed information of the disaster roaming service.
  • the disaster roaming service may be provided at a lower speed than the general service according to QoS restrictions.
  • the NAS layer may inform the upper layer of the average throughput speed of the disaster roaming service, and the UE uses this to The average throughput rate of the roaming service can be displayed on the display.
  • the third indicator may be expressed in bps.
  • the third indicator may be displayed on the upper portion of the display.
  • the position where the third indicator is displayed on the display is merely an example, and the third indicator is displayed on the lower part of the display, or the third indicator is displayed on the upper part of the display for a certain period of time only when the user inputs an input to be confirmed. Alternatively, it may be displayed on the lower part or the like.
  • a higher layer (eg, NAS layer) of the UE may perform PLMN selection again based on the disaster broadcast information.
  • the upper layer of the UE may adjust the priorities between PLMNs by reflecting the disaster broadcasting information provided by the RRC. For example, the priority can be adjusted so that the disaster roaming PLMN has a higher priority than the highest priority HPLMN under normal circumstances. Alternatively, it may reflect that the HPLMN is no longer available (eg, the priority of the HPLMN is adjusted to the lowest priority).
  • the present specification may have various effects.
  • disaster information provided by the RAN node may be effectively displayed to the user through the display.
  • the UE can effectively receive service without interruption of service even in the event of a disaster, thereby enhancing user experience and maintaining service continuity.
  • a or B (A or B) may mean “only A”, “only B”, or “both A and B”.
  • a or B (A or B) may be interpreted as “A and/or B (A and/or B)”.
  • A, B or C(A, B or C) herein means “only A”, “only B”, “only C”, or “any and any combination of A, B and C ( any combination of A, B and C)”.
  • a slash (/) or a comma (comma) may mean “and/or”.
  • A/B may mean “A and/or B”. Accordingly, “A/B” may mean “only A”, “only B”, or “both A and B”.
  • A, B, C may mean “A, B, or C”.
  • At least one of A and B may mean “only A”, “only B”, or “both A and B”.
  • the expression “at least one of A or B” or “at least one of A and/or B” means “A and It may be construed the same as “at least one of A and B”.
  • At least one of A, B and C means “only A”, “only B”, “only C”, or “A, B and C” any combination of A, B and C”.
  • at least one of A, B or C or “at least one of A, B and/or C” means can mean “at least one of A, B and C”.
  • parentheses used herein may mean “for example”.
  • PDCCH control information
  • PDCCH control information
  • parentheses used herein may mean “for example”.
  • PDCCH control information
  • PDCCH control information

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Abstract

L'invention concerne un procédé d'affichage d'interface utilisateur (UI)/d'expérience d'utilisateur (UX) en fonction d'une notification de situation de catastrophe d'un noeud de réseau d'accès radio (RAN), et un dispositif prenant en charge celui-ci. Un équipement utilisateur (UE) reçoit un message de diffusion de catastrophe en provenance d'un noeud de réseau d'accès radio (RAN). Le message de diffusion de catastrophe comprend (i) des premières informations indiquant qu'un état de catastrophe est appliqué à un premier réseau mobile terrestre public (PLMN), et (ii) des secondes informations concernant un second PLMN lié à l'état de catastrophe. L'état de catastrophe est un problème au niveau d'une interface entre le noeud RAN et un réseau coeur associé au premier PLMN, et un message de diffusion autre que le message de diffusion de catastrophe n'est pas reçu en provenance du noeud RAN. L'UE indique les premières informations et les secondes informations.
PCT/KR2021/008772 2020-07-13 2021-07-09 Procédé d'affichage d'ui/ux en fonction d'une notification de situation de catastrophe d'un noeud ran, et dispositif prenant en charge celui-ci WO2022014962A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20200086293 2020-07-13
KR10-2020-0086293 2020-07-13

Publications (1)

Publication Number Publication Date
WO2022014962A1 true WO2022014962A1 (fr) 2022-01-20

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EP4311313A1 (fr) * 2022-07-21 2024-01-24 MediaTek Inc. Sélection de réseau améliorée au niveau du signal lors de la mise en marche ou de la récupération à partir d'un manque de couverture

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