WO2022068901A1 - 网络接入引导方法、装置及电子设备 - Google Patents

网络接入引导方法、装置及电子设备 Download PDF

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Publication number
WO2022068901A1
WO2022068901A1 PCT/CN2021/121831 CN2021121831W WO2022068901A1 WO 2022068901 A1 WO2022068901 A1 WO 2022068901A1 CN 2021121831 W CN2021121831 W CN 2021121831W WO 2022068901 A1 WO2022068901 A1 WO 2022068901A1
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WIPO (PCT)
Prior art keywords
network
information
access
network access
terminal
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PCT/CN2021/121831
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English (en)
French (fr)
Inventor
张奕忠
康艳超
韩鲁峰
王文
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2022068901A1 publication Critical patent/WO2022068901A1/zh
Priority to US18/127,656 priority Critical patent/US20230239773A1/en

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    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • 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
    • H04W60/06—De-registration or detaching

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a network access guidance method, apparatus, and electronic device.
  • the second network can provide services for the terminal (User Equipment, UE) of the first network, but the UE of the first network is not in disaster conditions. In this case, the resources of the second network are occupied, which will cause the UE experience of the second network to be degraded.
  • UE User Equipment
  • Embodiments of the present application provide a network access guidance method, apparatus, and electronic device, which can prevent the first network UE from continuing to occupy the second network resources after the disaster condition ends, resulting in decreased experience of the second network UE.
  • an embodiment of the present application provides a method for guiding network access, the method comprising:
  • the second network side core network functional entity sends auxiliary information to the second network access network side device, where the auxiliary information is used to instruct the terminal to access the first network.
  • an embodiment of the present application provides a method for guiding network access, the method comprising:
  • the second network access network side device receives auxiliary information of the core network functional entity of the second network side, where the auxiliary information is used to instruct the terminal to access the first network;
  • the auxiliary information is sent over the air interface.
  • an embodiment of the present application provides a method for guiding network access, the method comprising:
  • the first terminal receives auxiliary information of the second network access network-side device, where the auxiliary information is used to instruct the first terminal to access the first network;
  • the first terminal performs a deregistration process based on the auxiliary information.
  • an embodiment of the present application provides a method for guiding network access, the method comprising:
  • the first network side device sends first information to the second network side core network functional entity or the second network access network side device, where the first information instructs the terminal to access the first network.
  • an embodiment of the present application provides an apparatus for guiding network access, the apparatus comprising:
  • the sending module is configured to send auxiliary information to the second network access network side device, where the auxiliary information is used to instruct the terminal to access the first network.
  • an embodiment of the present application provides an apparatus for guiding network access, the apparatus comprising:
  • a receiving module configured to receive auxiliary information of the core network functional entity on the second network side, where the auxiliary information is used to instruct the terminal to access the first network;
  • a sending module configured to send the auxiliary information through an air interface.
  • an embodiment of the present application provides an apparatus for guiding network access, the apparatus comprising:
  • a receiving module configured to receive auxiliary information of the second network access network-side device, where the auxiliary information is used to instruct the first terminal to access the first network;
  • a deregistration module configured to perform a deregistration process based on the auxiliary information.
  • an embodiment of the present application provides an apparatus for guiding network access, the apparatus comprising:
  • the sending module is configured to send first information to the second network side core network functional entity or the second network access network side device, where the first information instructs the terminal to access the first network.
  • an embodiment of the present application further provides an electronic device, including a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being The processor, when executed, implements the steps of the method as described above.
  • an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the above method are implemented.
  • an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the first The method of aspect or the second aspect or the third aspect or the fourth aspect.
  • a terminal that has accessed the first network can be notified that the first network disaster condition is released, so that the first network terminal can register with the second network and perform PLMN selection or network selection or network selection. Reselection is performed to avoid that the UE of the first network continues to occupy the resources of the second network after the disaster condition ends, resulting in a decrease in the experience of the UE of the second network.
  • FIG. 1 shows a schematic diagram of a wireless communication system
  • FIGS. 2 to 5 show schematic flowcharts of a method for guiding network access according to an embodiment of the present application
  • 6-9 are schematic diagrams of signaling interaction of a network access guidance method according to an embodiment of the present application.
  • 10-13 are schematic structural diagrams of a network access guidance apparatus according to an embodiment of the present application.
  • FIG. 14 shows a schematic diagram of the composition of a terminal according to an embodiment of the present application.
  • FIG. 15 shows a schematic diagram of the composition of a network side device according to an embodiment of the present application.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA single carrier frequency Division Multiple Access
  • system and “network” are often used interchangeably.
  • a CDMA system may implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • a TDMA system may implement a radio technology such as the Global System for Mobile Communication (GSM).
  • GSM Global System for Mobile Communication
  • OFDMA systems can implement radios such as UltraMobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. technology.
  • UMB UltraMobile Broadband
  • E-UTRA Evolution-UTRA
  • Wi-Fi IEEE 802.11
  • WiMAX IEEE 802.16
  • IEEE 802.20 Flash-OFDM
  • Flash-OFDM Flash-OFDM
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described herein may be used for both the systems and radio technologies mentioned above, as well as for other systems and radio technologies.
  • the following description describes an NR system for example purposes, and NR terminology is used in much of the following description, although these techniques are also applicable to applications other than NR system applications.
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be referred to as a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant) , PDA), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device and other terminal-side devices, it should be noted that the specific type of the terminal 11 is not limited in the embodiments of this application .
  • the network side device 12 may be a base station or a core network, wherein the above-mentioned base station may be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN access point) , or other access points, etc.), or a location server (for example: E-SMLC or LMF (Location Manager Function)), where the base station may be referred to as Node B, Evolved Node B, Access Point, Base Transceiver Station (Base Transceiver Station, BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home B Node, home evolved Node B, WLAN access point, WiFi node or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary, it should be noted that in this Only the base station
  • the mobile network may be out of service.
  • Mobile networks are therefore required to provide the capability to mitigate service interruptions. If there is a public land mobile network (Public Land Mobile Network, PLMN) operator ready to provide service, the UE can obtain service in the event of a disaster. Minimization of service interruptions is limited to specific times and locations. To reduce the impact on mobile networks supporting disaster roaming, the potential congestion due to the inflow or outflow of disaster inbound roamers is considered.
  • PLMN Public Land Mobile Network
  • the second network may provide services for the first network UE in order to reduce the influence of the first network, but once the disaster conditions of the first network are lifted, the first network UE needs to be notified to avoid the
  • the network UE occupies the resources of the second network under non-disaster conditions, resulting in decreased experience of the second network UE.
  • the first network refers to the network or PLMN in the disaster condition; the second network refers to the network or PLMN that provides services for the first network in the disaster condition.
  • An embodiment of the present application provides a network access guidance method, as shown in FIG. 2 , including:
  • Step 101 The second network side core network functional entity sends auxiliary information to the second network access network side device, where the auxiliary information is used to instruct the terminal to access the first network.
  • the core network functional entity on the second network side is the core network functional entity of the second network
  • the access network side device on the second network is the access network side device on the second network side, such as a base station.
  • the terminal has accessed the first network.
  • the sending manner of the auxiliary information is at least one of the following:
  • Interface NGAP message between the core network and the access network side equipment.
  • the auxiliary information includes at least one of the following: information of the first network; indication information; cause value; information of the terminal.
  • the indication information is at least one of the following: a deregistration message; a release message.
  • the cause value indicates that the disaster disaster condition is lifted.
  • the information of the terminal includes at least one of the following: a user identifier; and a device identifier of the terminal.
  • the method before the second network side core network functional entity sends the auxiliary information to the second network access network side device, the method further includes:
  • the second network-side core network functional entity receives the first information of the first network.
  • the first information indicates that the first network disaster disaster condition is lifted.
  • An embodiment of the present application provides a network access guidance method, as shown in FIG. 3 , including:
  • Step 201 the second network access network side device receives auxiliary information of the core network functional entity of the second network side, where the auxiliary information is used to instruct the terminal to access the first network;
  • the auxiliary information is sent over the air interface.
  • the auxiliary information includes at least one of the following: information of the first network; indication information; cause value; information of the terminal.
  • the indication information is at least one of the following: a deregistration message; a release message.
  • the cause value indicates that the disaster disaster condition is lifted.
  • the information of the terminal includes at least one of the following: a user identifier; and a device identifier of the terminal.
  • the sending manner of the auxiliary information is at least one of the following:
  • An embodiment of the present application provides a network access guidance method, as shown in FIG. 4 , including:
  • Step 301 A first terminal receives auxiliary information of a second network access network-side device, where the auxiliary information is used to instruct the first terminal to access the first network;
  • Step 302 The first terminal performs a deregistration process based on the auxiliary information.
  • the first terminal has accessed the first network.
  • the auxiliary information is included in at least one of the following:
  • the NAS message includes a deregistration request message and/or a NAS request reject message
  • the AS message includes an AS request reject message
  • it also includes:
  • the first terminal performs public land mobile network PLMN selection or network selection or network reselection based on the assistance information.
  • the first terminal selects a PLMN that is not in the prohibited PLMN list.
  • it also includes:
  • the first terminal receives first information of the first network, the first information indicates that the disaster condition of the first network is lifted, and the first information is included in a system message of the first network.
  • An embodiment of the present application provides a method for guiding network access, as shown in FIG. 5 , including:
  • Step 401 The first network side device sends first information to the second network side core network functional entity or the second network access network side device, where the first information instructs the terminal to access the first network.
  • the terminal has accessed the first network.
  • the first information is used to indicate that the disaster condition of the first network is lifted.
  • it also includes:
  • the first network-side device sends second information through an air interface, where the second information indicates that the first network can provide an access service.
  • a terminal that has accessed the first network can be notified that the first network disaster condition is released, so that the first network terminal can register with the second network and perform PLMN selection or network selection or network selection. Reselection is performed to avoid that the UE of the first network continues to occupy the resources of the second network after the disaster condition ends, resulting in a decrease in the experience of the UE of the second network.
  • the first network refers to a network or PLMN in a disaster condition
  • the second network refers to providing services for the first network in a disaster condition.
  • network or PLMN The second network includes a second network-side core network functional entity and a second network access network-side device.
  • the second network when the first network releases the disaster condition, registers the first network UE accessing the second network through the de-registration request message, and registers the first network UE accessing the second network in the The deregistration message carries the information that the first network releases the disaster condition.
  • this embodiment includes the following steps:
  • Step 1 The first network notifies the second network that the disaster condition is lifted, wherein step 1 is an optional step. Before step 1, the first network disaster condition is lifted;
  • Step 2 After the second network learns that the first network has released the disaster condition, it deregisters the UE of the first network, and the second network carries the disaster condition release information in the de-registration request message, and the disaster condition release information may be an indication message or a new cause value.
  • the indication information indicates that the first network releases the disaster condition
  • the new cause value indicates that the first network releases the disaster condition.
  • Step 3 The first network UE receives the information that the first network releases the disaster condition, and the first network UE performs a subsequent de-registration process.
  • Step 4 After completing the de-registration process, the first network UE performs PLMN selection or network selection, wherein the PLMN in the forbidden PLMN list cannot be selected during network selection.
  • Disaster condition terminated indication is a type 1 information element. Its structure is shown in Table 2 or Table 3, which is an octet. When the first bit of the eight bits is encoded as "1”, it indicates that the disaster condition is released, and when it is encoded as "0", it indicates that the disaster condition is not released. The second to fourth bits are coded as 0, and the fifth to eighth bits are the identifier of the Disaster condition terminated indication information element.
  • O is Optional (optional)
  • M is mandatory (required)
  • TV is Type Value
  • the unit of Length is bytes.
  • the 5GMM cause information element is shown in Table 4, and a cause value can be added in 5GMM to indicate disaster relief.
  • the 5GMM cause is an information element with a length of 2 bytes, and the cause value (Cause value) of the second byte can be used to indicate whether the disaster is relieved.
  • the second network rejects the access of the first network UE by rejecting the request of the first network UE, and in the rejection message Carry the information that the first network releases the disaster condition.
  • this embodiment includes the following steps:
  • Step 1 The first network notifies the second network that the disaster condition is lifted, wherein step 1 is an optional step. Before step 1, the first network disaster condition is lifted;
  • Step 2 the first network UE initiates a registration request or a service request, or other NAS requests (eg, SM process) to the second network.
  • NAS requests eg, SM process
  • Step 3 after the second network learns that the first network disaster condition is lifted, the second network rejects the first network UE registration request or service request or other NAS request, and the first network releases the disaster condition information is included in the registration request rejection message. , in a Service Request Reject message or other NAS request message.
  • the disaster condition release information may be a direct indication information or a new cause value. The indication information indicates that the first network releases the disaster condition, and the new cause value indicates that the first network releases the disaster condition.
  • Step 4 The first network UE performs PLMN selection or network selection. Among them, the PLMN in the forbidden PLMN list cannot be selected during network selection.
  • the IE "Disaster condition terminated indication" can be added to the registration rejection message or the service request rejection message as the first network disaster condition release indication information. Presence is Optional, Format is TV, and Length is 1byte.
  • Disaster condition terminated indication is a type 1 information element. Its structure is shown in Table 2 or Table 3. When the first bit of the eight bits is encoded as "1”, it indicates that the disaster condition is released, and when it is encoded as "0", it indicates that the disaster condition is not released. The second to fourth bits are coded as 0, and the fifth to eighth bits are the identifier of the Disaster condition terminated indication information element.
  • the 5GMM cause information element is shown in Table 4, and a cause value can be added in 5GMM to indicate disaster relief.
  • the 5GMM cause is an information element with a length of 2 bytes, and the cause value (Cause value) of the second byte can be used to indicate whether the disaster is relieved.
  • the first network sends a system message after releasing the disaster condition.
  • the system message carries the information that the first network releases the disaster condition.
  • the UE of the first network After receiving the system message, the UE of the first network sends a message to the second network. Go to the registration process.
  • this embodiment includes the following steps:
  • Step 1a the first network informs the first network UE that the disaster condition has been lifted, and the disaster condition cancellation information can be included in the system message, and before step 1a, the first network disaster condition is lifted;
  • Step 1b the second network notifies the first network UE that the disaster condition has been lifted, and the disaster condition lifting information can be included in the system message or the AS layer message;
  • step 1a and step 1b The sequence of step 1a and step 1b is not limited, and step 1a and step 1b may be performed, or any one of step 1a and step 1b may be performed.
  • Step 2 After receiving the disaster condition release information, the first network UE initiates a deregistration process to the second network;
  • Step 3 After completing the de-registration process, the first network UE performs PLMN selection or network selection. Among them, the PLMN in the forbidden PLMN list cannot be selected during network selection.
  • the second network rejects the access of the UE of the first network by rejecting the AS request of the UE of the first network, and the AS requests
  • the rejection message carries information that the first network releases the disaster condition.
  • this embodiment includes the following steps:
  • Step 1 The first network notifies the second network that the first network releases the disaster condition.
  • Step 1 is an optional step. Before step 1, the first network releases the disaster condition.
  • Step 2 the first network UE initiates an AS request message to the second network.
  • Step 3 after the second network learns that the first network disaster condition is lifted, the second network rejects the first network AS request, and the first network releases the disaster condition information is included in the AS request rejection message.
  • the disaster condition release information may be a direct indication information or a new cause value.
  • the indication information indicates that the first network releases the disaster condition, and the new cause value indicates that the first network releases the disaster condition.
  • Step 4 The first network UE performs PLMN selection or network selection. Among them, the PLMN in the forbidden PLMN list cannot be selected during network selection.
  • This embodiment can avoid that the UE of the first network continues to occupy the resources of the second network after the disaster condition ends, and the experience of the UE of the second network is degraded.
  • the execution body may be a network access guidance apparatus, or a module in the network access guidance apparatus for executing the method for loading a network access guidance.
  • the network access guidance method provided by the embodiments of the present application is described by taking the network access guidance apparatus executing the method for loading the network access guidance as an example.
  • An embodiment of the present application provides a network access guidance device, which is applied to a second network-side core network functional entity 100. As shown in FIG. 10 , the device includes:
  • the sending module 110 is configured to send auxiliary information to the second network access network side device, where the auxiliary information is used to instruct the terminal to access the first network.
  • the terminal has accessed the first network.
  • the sending manner of the auxiliary information is at least one of the following:
  • Interface NGAP message between the core network and the access network side equipment.
  • the auxiliary information includes at least one of the following: information of the first network; indication information; cause value; information of the terminal.
  • the indication information is at least one of the following: a deregistration message; a release message.
  • the cause value indicates that the disaster disaster condition is lifted.
  • the information of the terminal includes at least one of the following: a user identifier; and a device identifier of the terminal.
  • the auxiliary information is an indication information or a cause value.
  • the apparatus further includes:
  • a receiving module configured to receive the first information of the first network.
  • the first information indicates that the first network disaster disaster condition is lifted.
  • An embodiment of the present application provides a network access guidance apparatus, which is applied to a second network access network-side device 200. As shown in FIG. 11 , the apparatus includes:
  • a receiving module 210 configured to receive auxiliary information of the core network functional entity on the second network side, where the auxiliary information is used to instruct the terminal to access the first network;
  • the sending module 220 is configured to send the auxiliary information through the air interface.
  • the auxiliary information includes at least one of the following: information of the first network; indication information; cause value; information of the terminal.
  • the indication information is at least one of the following: a deregistration message; a release message.
  • the cause value indicates that the disaster disaster condition is lifted.
  • the information of the terminal includes at least one of the following: a user identity; and a device identity of the terminal.
  • the sending manner of the auxiliary information is at least one of the following:
  • An embodiment of the present application provides a network access guidance apparatus, which is applied to the first terminal 300. As shown in FIG. 12 , the apparatus includes:
  • a receiving module 310 configured to receive auxiliary information of the second network access network-side device, where the auxiliary information is used to instruct the first terminal to access the first network;
  • a deregistration module 320 configured to perform a deregistration process based on the auxiliary information.
  • the first terminal has accessed the first network.
  • the auxiliary information is included in at least one of the following:
  • the NAS message includes a deregistration request message and/or a NAS request reject message
  • the AS message includes an AS request reject message
  • it also includes:
  • a processing module configured to perform public land mobile network PLMN selection or network selection or network reselection based on the assistance information.
  • the processing module selects PLMNs that are not in the list of prohibited PLMNs.
  • the receiving module is further configured to receive first information of the first network, the first information indicating that the disaster condition of the first network has been lifted, and the first information is included in the information of the first network. in system messages.
  • An embodiment of the present application provides a network access guidance apparatus, which is applied to the first network side device 400. As shown in FIG. 13 , the apparatus includes:
  • the sending module 410 is configured to send first information to the second network side core network functional entity or the second network access network side device, where the first information instructs the terminal to access the first network.
  • the terminal has accessed the first network.
  • the first information is used to indicate that the disaster condition of the first network is lifted.
  • the sending module is further configured to send second information through an air interface, where the second information indicates that the first network can provide an access service.
  • a terminal that has accessed the first network can be notified that the first network disaster condition is released, so that the first network terminal can register with the second network and perform PLMN selection or network selection or network selection. Reselection is performed to avoid that the UE of the first network continues to occupy the resources of the second network after the disaster condition ends, resulting in a decrease in the experience of the UE of the second network.
  • the apparatus for guiding network access in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
  • UMPC ultra-mobile personal computer
  • netbook or a personal digital assistant
  • the non-mobile electronic device may be a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., the embodiment of the present application There is no specific limitation.
  • Network Attached Storage NAS
  • personal computer personal computer, PC
  • television television
  • teller machine a self-service machine
  • the apparatus for guiding network access in this embodiment of the present application may be an apparatus having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • an embodiment of the present application further provides an electronic device, including a processor, a memory, a program or an instruction stored in the memory and executable on the processor, and the program or instruction is executed by the processor to implement the above.
  • an electronic device including a processor, a memory, a program or an instruction stored in the memory and executable on the processor, and the program or instruction is executed by the processor to implement the above.
  • the electronic devices in the embodiments of the present application include the aforementioned mobile electronic devices and non-mobile electronic devices.
  • the electronic device in this embodiment may be a terminal.
  • 14 is a schematic diagram of the hardware structure of a terminal implementing various embodiments of the present application.
  • the terminal 50 includes but is not limited to: a radio frequency unit 51, a network module 52, an audio output unit 53, an input unit 54, a sensor 55, a display unit 56, The user input unit 57 , the interface unit 58 , the memory 59 , the processor 510 , and the power supply 511 and other components.
  • the terminal structure shown in FIG. 14 does not constitute a limitation on the terminal, and the terminal may include more or less components than the one shown, or combine some components, or arrange different components.
  • the terminals include but are not limited to mobile phones, tablet computers, notebook computers, handheld computers, vehicle-mounted terminals, wearable devices, and pedometers.
  • the radio frequency unit 51 may be used for receiving and sending signals in the process of sending and receiving information or during a call. Specifically, after receiving the downlink data from the base station, it is processed by the processor 510; The uplink data is sent to the base station.
  • the radio frequency unit 51 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 51 can also communicate with the network and other devices through a wireless communication system.
  • the memory 59 may be used to store software programs as well as various data.
  • the memory 59 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required for at least one function, and the like; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc.
  • memory 59 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the processor 510 is the control center of the terminal, uses various interfaces and lines to connect various parts of the entire terminal, and executes by running or executing the software programs and/or modules stored in the memory 59, and calling the data stored in the memory 59. Various functions of the terminal and processing data, so as to monitor the terminal as a whole.
  • the processor 510 may include one or at least two processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc.
  • the demodulation processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 510.
  • the terminal 50 may also include a power supply 511 (such as a battery) for supplying power to various components.
  • a power supply 511 (such as a battery) for supplying power to various components.
  • the power supply 511 may be logically connected to the processor 510 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. and other functions.
  • the terminal 50 includes some unshown functional modules, which are not repeated here.
  • the processor 510 is specifically configured to execute the network access guidance method shown in FIG. 4 , which is not repeated here to avoid repetition.
  • the electronic device in this embodiment may also be a network-side device.
  • the network-side device 600 includes: an antenna 61 , a radio frequency device 62 , and a baseband device 63 .
  • the antenna 61 is connected to the radio frequency device 62 .
  • the radio frequency device 62 receives information through the antenna 61, and sends the received information to the baseband device 63 for processing.
  • the baseband device 63 processes the information to be sent and sends it to the radio frequency device 62
  • the radio frequency device 62 processes the received information and sends it out through the antenna 61 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 63 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 63 , where the baseband apparatus 63 includes a processor 64 and a memory 65 .
  • the baseband device 63 may include, for example, at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 15 , one of the chips is, for example, the processor 64 , which is connected to the memory 65 to call a program in the memory 65 to execute
  • the network-side device shown in the above method embodiments operates.
  • the baseband device 63 may further include a network interface 66 for exchanging information with the radio frequency device 62, and the interface is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the processor here may be a processor, or a collective term for multiple processing elements.
  • the processor may be a CPU, or an ASIC, or configured to implement one or more of the methods performed by the above network-side device.
  • Multiple integrated circuits such as: one or more microprocessors DSP, or, one or more field programmable gate array FPGA, etc.
  • the storage element may be one memory or a collective term for multiple storage elements.
  • Memory 65 may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory.
  • the non-volatile memory may be Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (ErasablePROM, EPROM), Electrically Erasable Program read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM Double data rate synchronous dynamic random access memory
  • DoubleDataRateSDRAM DDRSDRAM
  • EnhancedSDRAM ESDRAM
  • SynchlinkDRAM SLDRAM
  • DirectRambusRAM Direct memory bus random access memory
  • the processor 64 is specifically configured to execute the network access guidance methods described in FIG. 2 , FIG. 3 , and FIG. 5 . To avoid repetition, details are not repeated here.
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the above embodiment of the network access guidance method is implemented, and The same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.
  • the processor is the processor in the electronic device described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above-mentioned network access guidance method.
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is configured to run a program or an instruction to implement the above-mentioned network access guidance method.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present application further provides a program product, where the program product is stored in a non-transitory readable storage medium, and when the program product is executed by a processor, implements each process of the foregoing embodiments of the network access guidance method, And can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the terms “comprising”, “comprising” or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a series of elements does not include those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase “comprising a" does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.
  • the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

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Abstract

本申请公开了一种网络接入引导方法、装置及电子设备，属于通信技术领域。网络接入引导方法包括：第二网络侧核心网功能实体向第二网络接入网侧设备发送辅助信息，所述辅助信息用以指示终端接入第一网络。

Description

网络接入引导方法、装置及电子设备
相关申请的交叉引用
本申请主张在2020年9月30日在中国提交的中国专利申请号No.202011063730.8的优先权，其全部内容通过引用包含于此。
技术领域
本申请涉及通信技术领域，尤其涉及一种网络接入引导方法、装置及电子设备。
背景技术
在第一网络处于灾情情况(disaster conditions)下，为减少第一网络的影响，第二网络可以为第一网络的终端(User Equipment，UE)提供服务，但是第一网络的UE在非disaster conditions情况下占用第二网络的资源，会造成第二网络的UE体验下降。
发明内容
本申请实施例提供了一种网络接入引导方法、装置及电子设备，能够避免disaster condition结束后第一网络UE继续占用第二网络资源，造成第二网络UE体验下降。
第一方面，本申请实施例提供了一种网络接入引导方法，所述方法包括：
第二网络侧核心网功能实体向第二网络接入网侧设备发送辅助信息，所述辅助信息用以指示终端接入第一网络。
第二方面，本申请实施例提供了一种网络接入引导方法，所述方法包括：
第二网络接入网侧设备接收第二网络侧核心网功能实体的辅助信息，所述辅助信息用以指示终端接入第一网络；
通过空口发送所述辅助信息。
第三方面，本申请实施例提供了一种网络接入引导方法，所述方法包括：
第一终端接收第二网络接入网侧设备的辅助信息，所述辅助信息用以指 示所述第一终端接入第一网络；
所述第一终端基于所述辅助信息执行去注册过程。
第四方面，本申请实施例提供了一种网络接入引导方法，所述方法包括：
第一网络侧设备向第二网络侧核心网功能实体或第二网络接入网侧设备发送第一信息，所述第一信息指示终端接入第一网络。
第五方面，本申请实施例提供了一种网络接入引导装置，所述装置包括：
发送模块，用于向第二网络接入网侧设备发送辅助信息，所述辅助信息用以指示终端接入第一网络。
第六方面，本申请实施例提供了一种网络接入引导装置，所述装置包括：
接收模块，用于接收第二网络侧核心网功能实体的辅助信息，所述辅助信息用以指示终端接入第一网络；
发送模块，用于通过空口发送所述辅助信息。
第七方面，本申请实施例提供了一种网络接入引导装置，所述装置包括：
接收模块，用于接收第二网络接入网侧设备的辅助信息，所述辅助信息用以指示第一终端接入第一网络；
去注册模块，用于基于所述辅助信息执行去注册过程。
第八方面，本申请实施例提供了一种网络接入引导装置，所述装置包括：
发送模块，用于向第二网络侧核心网功能实体或第二网络接入网侧设备发送第一信息，所述第一信息指示终端接入第一网络。
第九方面，本申请实施例还提供了一种电子设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如上所述的方法的步骤。
第十方面，本申请实施例提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如上所述的方法的步骤。
第十一方面，本申请实施例提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面或第二方面或第三方面或第四方面所述的方法。
在本申请实施例中，第一网络disaster condition解除后，可以通知曾访问 第一网络的终端第一网络disaster condition解除，以便第一网络终端去注册第二网络，执行PLMN选择或网络选择或网络重选，避免disaster condition结束后第一网络UE继续占用第二网络资源，造成第二网络UE体验下降。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1表示无线通信系统的示意图；
图2-图5表示本申请实施例网络接入引导方法的流程示意图；
图6-图9表示本申请实施例网络接入引导方法的信令交互示意图；
图10-图13表示本申请实施例网络接入引导装置的结构示意图；
图14表示本申请实施例的终端的组成示意图；
图15表示本申请实施例的网络侧设备的组成示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
本文所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，并且也可用于各种无线通信系统， 诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access，UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access，WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication，GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(UltraMobile Broadband，UMB)、演进型UTRA(Evolution-UTRA，E-UTRA)、IEEE 802.11(Wi-Fi)、IEEE 802.16(WiMAX)、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System，UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project，3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了NR系统，并且在以下大部分描述中使用NR术语，尽管这些技术也可应用于NR系统应用以外的应用。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如，可以按不同于所描述的次序来执行所描述的方法，并且可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
请参见图1，图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11也可以称作终端设备或者用户终端(User Equipment，UE)，终端11可以是手机、平板电脑 (Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备，需要说明的是，在本申请实施例中并不限定终端11的具体类型。网络侧设备12可以是基站或核心网，其中，上述基站可以是5G及以后版本的基站(例如：gNB、5G NR NB等)，或者其他通信系统中的基站(例如：eNB、WLAN接入点、或其他接入点等)，或者为位置服务器(例如：E-SMLC或LMF(Location Manager Function))，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例，但是本申请实施例并不限定基站的具体类型和具体通信系统。
在发生灾难(例如火灾)时，移动网络可能无法提供服务。因此要求移动网络提供减轻服务中断的能力。如果有公共陆地移动网(Public Land Mobile Network，PLMN)运营商准备提供服务，则UE可以在发生灾难时获得服务。服务中断的最小化被限制在特定的时间和地点。为了减少对支持灾难漫游的移动网络的影响，考虑了由于灾难入站漫游者的流入或流出而导致的潜在拥塞。
在第一网络处于disaster conditions下，第二网络为减少第一网络的影响，可能为第一网络UE提供服务，但是一旦第一网络disaster conditions解除，是需要通知第一网络UE的，避免第一网络UE在非disaster conditions情况下占用第二网络的资源，造成第二网络UE体验下降。第一网络指处于disaster condition的网络或者PLMN；第二网络指为处于disaster condition的第一网络提供服务的网络或者PLMN。
本申请实施例提供了一种网络接入引导方法，如图2所示，包括：
步骤101：第二网络侧核心网功能实体向第二网络接入网侧设备发送辅 助信息，所述辅助信息用以指示终端接入第一网络。
其中，第二网络侧核心网功能实体为第二网络的核心网功能实体，第二网络接入网侧设备为第二网络侧的接入网侧设备，比如基站等。
一些实施例中，所述终端曾访问所述第一网络。
一些实施例中，所述辅助信息的发送方式为以下至少一项：
非接入层NAS消息；
核心网与接入网侧设备间接口NGAP消息。
一些实施例中，所述辅助信息包括以下至少一项：所述第一网络的信息；指示信息；原因值；所述终端的信息。
一些实施例中，所述指示信息为以下至少一项：去注册消息；释放消息。
一些实施例中，所述原因值指示灾情disaster condition解除。
一些实施例中，所述终端的信息包括以下至少一项：用户标识；终端的设备标识。
一些实施例中，所述第二网络侧核心网功能实体向第二网络接入网侧设备发送辅助信息之前，所述方法还包括：
所述第二网络侧核心网功能实体接收所述第一网络的第一信息。
一些实施例中，所述第一信息指示所述第一网络灾情disaster condition解除。
本申请实施例提供了一种网络接入引导方法，如图3所示，包括：
步骤201：第二网络接入网侧设备接收第二网络侧核心网功能实体的辅助信息，所述辅助信息用以指示终端接入第一网络；
通过空口发送所述辅助信息。
一些实施例中，所述辅助信息包括以下至少一项：所述第一网络的信息；指示信息；原因值；所述终端的信息。
一些实施例中，所述指示信息为以下至少一项：去注册消息；释放消息。
一些实施例中，所述原因值指示灾情disaster condition解除。
一些实施例中，所述终端的信息包括以下至少一项：用户标识；终端的设备标识。
一些实施例中，所述辅助信息的发送方式为以下至少一项：
广播消息；
非接入层NAS消息；
接入层AS消息。
本申请实施例提供了一种网络接入引导方法，如图4所示，包括：
步骤301：第一终端接收第二网络接入网侧设备的辅助信息，所述辅助信息用以指示所述第一终端接入第一网络；
步骤302：所述第一终端基于所述辅助信息执行去注册过程。
一些实施例中，所述第一终端曾接入所述第一网络。
一些实施例中，所述辅助信息包括在以下至少一项中：
广播消息；
非接入层NAS消息；
接入层AS消息。
一些实施例中，，所述NAS消息包括去注册请求消息和/或NAS请求拒绝消息，所述AS消息包括AS请求拒绝消息。
一些实施例中，还包括：
所述第一终端基于所述辅助信息执行公共陆地移动网PLMN选择或网络选择或网络重选。
一些实施例中，所述第一终端选择禁止PLMN列表之外的PLMN。
一些实施例中，还包括：
所述第一终端接收所述第一网络的第一信息，所述第一信息指示第一网络灾情disaster condition解除，所述第一信息包含在所述第一网络的系统消息中。
本申请实施例提供了一种网络接入引导方法，如图5所示，包括：
步骤401：第一网络侧设备向第二网络侧核心网功能实体或第二网络接入网侧设备发送第一信息，所述第一信息指示终端接入第一网络。
一些实施例中，所述终端曾访问所述第一网络。
一些实施例中，第一信息用于指示第一网络的灾情disaster condition解除。
一些实施例中，还包括：
所述第一网络侧设备通过空口发送第二信息，所述第二信息指示所述第 一网络能够提供接入服务。
在本申请实施例中，第一网络disaster condition解除后，可以通知曾访问第一网络的终端第一网络disaster condition解除，以便第一网络终端去注册第二网络，执行PLMN选择或网络选择或网络重选，避免disaster condition结束后第一网络UE继续占用第二网络资源，造成第二网络UE体验下降。
下面结合附图以及具体的实施例对本申请的技术方案进行进一步介绍，本申请实施例中，第一网络指处于disaster condition的网络或者PLMN，第二网络指为处于disaster condition的第一网络提供服务的网络或者PLMN。第二网络包括第二网络侧核心网功能实体和第二网络接入网侧设备。
实施例一
本实施例中，对于接入到第二网络的第一网络UE，当第一网络解除disaster condition，第二网络通过去注册请求消息去注册接入到第二网络的第一网络UE，并在去注册消息中携带第一网络解除disaster condition的信息。
如图6所示，本实施例包括以下步骤：
步骤1、第一网络通知第二网络disaster condition解除，其中，步骤1为可选步骤，在步骤1之前，第一网络disaster condition解除；
步骤2、在第二网络得知第一网络解除disaster condition后，去注册第一网络UE，第二网络在去注册请求消息中携带disaster condition解除信息，所述disaster condition解除信息可以是一个指示信息或一个新cause值。所述指示信息指示第一网络解除disaster condition，所述新cause值指示第一网络解除disaster condition。
步骤3、第一网络UE收到第一网络解除disaster condition信息，第一网络UE执行后续去注册过程。
步骤4、在完成去注册过程后，第一网络UE执行PLMN选择或网络选择，其中，选网时不能选择forbidden PLMN列表里的PLMN。
如表1所示，可以在去注册请求消息新增IE“Disaster condition terminated indication”，Presence为Optional，Format为TV，Length为1byte。对于Disaster condition terminated indication的编码：Disaster condition terminated indication属于type 1信息元素。其结构如表2或表3所示，为八元组(octet)。八比特 的第一个bit编码为“1”时，指示disaster condition解除，编码为“0”时指示disaster condition未解除。第二至第四比特位编码为0，第五至第八比特位为Disaster condition terminated indication信息元素的标识。
表1注销请求消息内容(DEREGISTRATION REQUEST message content)
Figure PCTCN2021121831-appb-000001
其中，O也就是Optional(可选的)，M也就是Mandatory(必选的)，TV也就是类型值(Type Value)，Length的单位为字节。
表2：灾情解除指示(Disaster condition terminated indication)
Figure PCTCN2021121831-appb-000002
表3:Disaster condition terminated indication
Figure PCTCN2021121831-appb-000003
表4 5GMM(mobility management)原因信息元素
Figure PCTCN2021121831-appb-000004
Figure PCTCN2021121831-appb-000005
5GMM原因信息元素如表4所示，可以在5GMM中增加原因值指示灾情解除。如表5所示，5GMM原因是一个具有2字节长度的信息元素，可以用第2字节的原因值(Cause value)来指示灾情是否解除。
表5 5GMM原因信息元素
Figure PCTCN2021121831-appb-000006
实施例二
本实施例中，对于接入到第二网络的第一网络UE，当第一网络解除disaster condition，第二网络通过拒绝第一网络UE的请求拒绝第一网络UE接入，并在拒绝消息中携带第一网络解除disaster condition的信息。
如图7所示，本实施例包括以下步骤：
步骤1、第一网络通知第二网络disaster condition解除，其中，步骤1为可选步骤，在步骤1之前，第一网络disaster condition解除；
步骤2、第一网络UE向第二网络发起注册请求或服务请求，或其他NAS请求(如SM过程)。
步骤3、在第二网络得知第一网络disaster condition解除后，第二网络拒绝第一网络UE注册请求或服务请求或其他NAS请求，所述第一网络解除disaster condition信息包含在注册请求拒绝消息，服务请求拒绝消息或其他NAS请求消息中。所述disaster condition解除信息可以是一个直接指示信息或一个新cause值。所述指示信息指示第一网络解除disaster condition，所述新cause值指示第一网络解除disaster condition。
步骤4、第一网络UE执行PLMN选择或网络选择。其中，选网时不能 选择forbidden PLMN列表里的PLMN。
如表6或表7所示，可以在注册拒绝消息或者服务请求拒绝消息中新增IE“Disaster condition terminated indication”，作为第一网络disaster condition解除指示信息，Presence为Optional，Format为TV，Length为1byte。
对于Disaster condition terminated indication的编码：Disaster condition terminated indication属于type 1信息元素。其结构如表2或表3所示，八比特的第一个bit编码为“1”时，指示disaster condition解除，编码为“0”时指示disaster condition未解除。第二至第四比特位编码为0，第五至第八比特位为Disaster condition terminated indication信息元素的标识。
表6注册拒绝消息内容(REGISTRATION REJECT message content)
Figure PCTCN2021121831-appb-000007
表7服务拒绝消息内容(SERVICE REJECT message content)
Figure PCTCN2021121831-appb-000008
5GMM原因信息元素如表4所示，可以在5GMM中增加原因值指示灾情解除。如表5所示，5GMM原因是一个具有2字节长度的信息元素，可以用第2字节的原因值(Cause value)来指示灾情是否解除。
实施例三
本实施例中，第一网络在解除disaster condition后，发送系统消息，所述系统消息携带第一网络解除disaster condition的信息，第一网络UE在接收到所述系统消息后，向第二网络发起去注册过程。
如图8所示，本实施例包括以下步骤：
步骤1a、第一网络通知第一网络UE disaster condition已解除，所述disaster conditions解除信息可以包含在系统消息中，在步骤1a之前，第一网络disaster condition解除；
步骤1b、第二网络通知第一网络UE disaster condition已解除，所述 disaster conditions解除信息可以包含在系统消息，或AS层消息中；
其中，步骤1a和步骤1b的先后顺序不做限定，可以执行步骤1a和步骤1b，也可以执行步骤1a和步骤1b中的任一项。
步骤2、第一网络UE在收到disaster condition解除信息后，向第二网络发起去注册过程；
步骤3、在完成去注册过程后，第一网络UE执行PLMN选择或网络选择。其中，选网时不能选择forbidden PLMN列表里的PLMN。
实施例四
本实施例中，对于接入到第二网络的第一网络UE，当第一网络解除disaster condition，第二网络通过拒绝第一网络UE的AS请求拒绝第一网络UE接入，并在AS请求拒绝消息中携带第一网络解除disaster condition的信息。
如图9所示，本实施例包括以下步骤：
步骤1、第一网络通知第二网络第一网络解除disaster condition，其中，步骤1为可选步骤，在步骤1之前，第一网络disaster condition解除。
步骤2、第一网络UE向第二网络发起AS请求消息.
步骤3、在第二网络得知第一网络disaster condition解除后，第二网络拒绝第一网络AS请求，所述第一网络解除disaster condition信息包含在AS请求拒绝消息中。所述disaster condition解除信息可以是一个直接指示信息或一个新cause值。所述指示信息指示第一网络解除disaster condition，所述新cause值指示第一网络解除disaster condition。
步骤4、第一网络UE执行PLMN选择或网络选择。其中，选网时不能选择forbidden PLMN列表里的PLMN。
本实施例可以避免disaster condition结束后第一网络UE继续占用第二网络资源，造成第二网络UE体验下降。
需要说明的是，本申请实施例提供的网络接入引导方法，执行主体可以为网络接入引导装置，或者该网络接入引导装置中的用于执行加载网络接入引导方法的模块。本申请实施例中以网络接入引导装置执行加载网络接入引导方法为例，说明本申请实施例提供的网络接入引导方法。
本申请实施例提供了一种网络接入引导装置，应用于第二网络侧核心网功能实体100，如图10所示，所述装置包括：
发送模块110，用于向第二网络接入网侧设备发送辅助信息，所述辅助信息用以指示终端接入第一网络。
一些实施例中，所述终端曾访问所述第一网络。
一些实施例中，所述辅助信息的发送方式为以下至少一项：
非接入层NAS消息；
核心网与接入网侧设备间接口NGAP消息。
一些实施例中，所述辅助信息包括以下至少一项：所述第一网络的信息；指示信息；原因值；所述终端的信息。
一些实施例中，所述指示信息为以下至少一项：去注册消息；释放消息。
一些实施例中，所述原因值指示灾情disaster condition解除。
一些实施例中，所述终端的信息包括以下至少一项：用户标识；终端的设备标识。
一些实施例中，所述辅助信息为一指示信息或一原因值。
一些实施例中，所述装置还包括：
接收模块，用于接收所述第一网络的第一信息。
一些实施例中，所述第一信息指示所述第一网络灾情disaster condition解除。
本申请实施例提供了一种网络接入引导装置，应用于第二网络接入网侧设备200，如图11所示，所述装置包括：
接收模块210，用于接收第二网络侧核心网功能实体的辅助信息，所述辅助信息用以指示终端接入第一网络；
发送模块220，用于通过空口发送所述辅助信息。
一些实施例中，所述辅助信息包括以下至少一项：所述第一网络的信息；指示信息；原因值；所述终端的信息。
一些实施例中，所述指示信息为以下至少一项：去注册消息；释放消息。
一些实施例中，所述原因值指示灾情disaster condition解除。
一些实施例中，所述终端的信息包括以下至少一项：用户标识；终端的 设备标识。
一些实施例中，所述辅助信息的发送方式为以下至少一项：
广播消息；
非接入层NAS消息；
接入层AS消息。
本申请实施例提供了一种网络接入引导装置，应用于第一终端300，如图12所示，所述装置包括：
接收模块310，用于接收第二网络接入网侧设备的辅助信息，所述辅助信息用以指示第一终端接入第一网络；
去注册模块320，用于基于所述辅助信息执行去注册过程。
一些实施例中，所述第一终端曾接入所述第一网络。
一些实施例中，所述辅助信息包括在以下至少一项中：
广播消息；
非接入层NAS消息；
接入层AS消息。
一些实施例中，所述NAS消息包括去注册请求消息和/或NAS请求拒绝消息，所述AS消息包括AS请求拒绝消息。
一些实施例中，还包括：
处理模块，用于基于所述辅助信息执行公共陆地移动网PLMN选择或网络选择或网络重选。
一些实施例中，所述处理模块选择禁止PLMN列表之外的PLMN。
一些实施例中，所述接收模块还用于接收所述第一网络的第一信息，所述第一信息指示第一网络灾情disaster condition解除，所述第一信息包含在所述第一网络的系统消息中。
本申请实施例提供了一种网络接入引导装置，应用于第一网络侧设备400，如图13所示，所述装置包括：
发送模块410，用于向第二网络侧核心网功能实体或第二网络接入网侧设备发送第一信息，所述第一信息指示终端接入第一网络。
一些实施例中，所述终端曾访问所述第一网络。
一些实施例中，第一信息用于指示第一网络的灾情disaster condition解除。
一些实施例中，所述发送模块还用于通过空口发送第二信息，所述第二信息指示所述第一网络能够提供接入服务。
在本申请实施例中，第一网络disaster condition解除后，可以通知曾访问第一网络的终端第一网络disaster condition解除，以便第一网络终端去注册第二网络，执行PLMN选择或网络选择或网络重选，避免disaster condition结束后第一网络UE继续占用第二网络资源，造成第二网络UE体验下降。
本申请实施例中的网络接入引导装置可以是装置，也可以是终端中的部件、集成电路、或芯片。该装置可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，非移动电子设备可以为网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的网络接入引导装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为ios操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
可选的，本申请实施例还提供一种电子设备，包括处理器，存储器，存储在存储器上并可在所述处理器上运行的程序或指令，该程序或指令被处理器执行时实现上述网络接入引导方法的实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要注意的是，本申请实施例中的电子设备包括上述所述的移动电子设备和非移动电子设备。
本实施例的电子设备可以为终端。图14为实现本申请各个实施例的一种终端的硬件结构示意图，该终端50包括但不限于：射频单元51、网络模块52、音频输出单元53、输入单元54、传感器55、显示单元56、用户输入单元57、接口单元58、存储器59、处理器510、以及电源511等部件。本领域技术人员可以理解，图14中示出的终端结构并不构成对终端的限定，终端可 以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本申请实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
应理解的是，本申请实施例中，射频单元51可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器510处理；另外，将上行的数据发送给基站。通常，射频单元51包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元51还可以通过无线通信系统与网络和其他设备通信。
存储器59可用于存储软件程序以及各种数据。存储器59可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器59可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器510是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器59内的软件程序和/或模块，以及调用存储在存储器59内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器510可包括一个或至少两个处理单元；可选的，处理器510可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器510中。
终端50还可以包括给各个部件供电的电源511(比如电池)，可选的，电源511可以通过电源管理系统与处理器510逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端50包括一些未示出的功能模块，在此不再赘述。
其中，处理器510具体用于执行如图4所示的网络接入引导方法，为避免重复，在此不再赘述。
本实施例的电子设备还可以为网络侧设备。如图15所示，该网络侧设备600包括：天线61、射频装置62、基带装置63。天线61与射频装置62连接。 在上行方向上，射频装置62通过天线61接收信息，将接收的信息发送给基带装置63进行处理。在下行方向上，基带装置63对要发送的信息进行处理，并发送给射频装置62，射频装置62对收到的信息进行处理后经过天线61发送出去。
上述频带处理装置可以位于基带装置63中，以上实施例中网络侧设备执行的方法可以在基带装置63中实现，该基带装置63包括处理器64和存储器65。
基带装置63例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图15所示，其中一个芯片例如为处理器64，与存储器65连接，以调用存储器65中的程序，执行以上方法实施例中所示的网络侧设备操作。
该基带装置63还可以包括网络接口66，用于与射频装置62交互信息，该接口例如为通用公共无线接口(common public radio interface，CPRI)。
这里的处理器可以是一个处理器，也可以是多个处理元件的统称，例如，该处理器可以是CPU，也可以是ASIC，或者是被配置成实施以上网络侧设备所执行方法的一个或多个集成电路，例如：一个或多个微处理器DSP，或，一个或者多个现场可编程门阵列FPGA等。存储元件可以是一个存储器，也可以是多个存储元件的统称。
存储器65可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-OnlyMemory，ROM)、可编程只读存储器(ProgrammableROM，PROM)、可擦除可编程只读存储器(ErasablePROM，EPROM)、电可擦除可编程只读存储器(ElectricallyEPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(RandomAccessMemory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(StaticRAM，SRAM)、动态随机存取存储器(DynamicRAM，DRAM)、同步动态随机存取存储器(SynchronousDRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(DoubleDataRateSDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(EnhancedSDRAM，ESDRAM)、同步连接动态随机存取存储器(SynchlinkDRAM，SLDRAM)和直接内存总线随机存取存储器 (DirectRambusRAM，DRRAM)。本申请描述的存储器65旨在包括但不限于这些和任意其它适合类型的存储器。
一些实施例中，处理器64具体用于执行如图2、图3、图5所述的网络接入引导方法，为避免重复，这里不再赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述网络接入引导方法的实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述网络接入引导方法的实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
本申请实施例另提供了一种程序产品，所述程序产品存储于非瞬态的可读存储介质，所述程序产品被处理器执行时实现上述网络接入引导方法的实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被 组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (57)

  1. 一种网络接入引导方法，包括：
    第二网络侧核心网功能实体向第二网络接入网侧设备发送辅助信息，所述辅助信息用以指示终端接入第一网络。
  2. 根据权利要求1所述的网络接入引导方法，其中，所述终端曾访问所述第一网络。
  3. 根据权利要求1所述的网络接入引导方法，其中，所述辅助信息的发送方式为以下至少一项：
    非接入层NAS消息；
    核心网与接入网侧设备间接口NGAP消息。
  4. 根据权利要求1所述的网络接入引导方法，其中，所述辅助信息包括以下至少一项：所述第一网络的信息；指示信息；原因值；所述终端的信息。
  5. 根据权利要求4所述的网络接入引导方法，其中，所述指示信息为以下至少一项：去注册消息；释放消息。
  6. 根据权利要求4所述的网络接入引导方法，其中，所述原因值指示灾情disaster condition解除。
  7. 根据权利要求4所述的网络接入引导方法，其中，所述终端的信息包括以下至少一项：用户标识；终端的设备标识。
  8. 根据权利要求1所述的网络接入引导方法，其中，所述第二网络侧核心网功能实体向第二网络接入网侧设备发送辅助信息之前，所述方法还包括：
    所述第二网络侧核心网功能实体接收所述第一网络的第一信息。
  9. 根据权利要求8所述的网络接入引导方法，其中，所述第一信息指示所述第一网络灾情disaster condition解除。
  10. 一种网络接入引导方法，包括：
    第二网络接入网侧设备接收第二网络侧核心网功能实体的辅助信息，所述辅助信息用以指示终端接入第一网络；
    通过空口发送所述辅助信息。
  11. 根据权利要求10所述的网络接入引导方法，其中，所述辅助信息包 括以下至少一项：所述第一网络的信息；指示信息；原因值；所述终端的信息。
  12. 根据权利要求11所述的网络接入引导方法，其中，所述指示信息为以下至少一项：去注册消息；释放消息。
  13. 根据权利要求11所述的网络接入引导方法，其中，所述原因值指示灾情disaster condition解除。
  14. 根据权利要求11所述的网络接入引导方法，其中，所述终端的信息包括以下至少一项：用户标识；终端的设备标识。
  15. 根据权利要求10所述的网络接入引导方法，其中，所述辅助信息的发送方式为以下至少一项：
    广播消息；
    非接入层NAS消息；
    接入层AS消息。
  16. 一种网络接入引导方法，包括：
    第一终端接收第二网络接入网侧设备的辅助信息，所述辅助信息用以指示所述第一终端接入第一网络；
    所述第一终端基于所述辅助信息执行去注册过程。
  17. 根据权利要求16所述的网络接入引导方法，其中，所述第一终端曾接入所述第一网络。
  18. 根据权利要求16所述的网络接入引导方法，其中，所述辅助信息包括在以下至少一项中：
    广播消息；
    非接入层NAS消息；
    接入层AS消息。
  19. 根据权利要求18所述的网络接入引导方法，其中，所述NAS消息包括去注册请求消息和/或NAS请求拒绝消息，所述AS消息包括AS请求拒绝消息。
  20. 根据权利要求16所述的网络接入引导方法，还包括：
    所述第一终端基于所述辅助信息执行公共陆地移动网PLMN选择或网络 选择或网络重选。
  21. 根据权利要求20所述的网络接入引导方法，其中，
    所述第一终端选择禁止PLMN列表之外的PLMN。
  22. 根据权利要求16所述的网络接入引导方法，还包括：
    所述第一终端接收所述第一网络的第一信息，所述第一信息指示第一网络灾情disaster condition解除，所述第一信息包含在所述第一网络的系统消息中。
  23. 一种网络接入引导方法，包括：
    第一网络侧设备向第二网络侧核心网功能实体或第二网络接入网侧设备发送第一信息，所述第一信息指示终端接入第一网络。
  24. 根据权利要求23所述的网络接入引导方法，其中，所述终端曾访问所述第一网络。
  25. 根据权利要求23所述的网络接入引导方法，其中，第一信息用于指示第一网络的灾情disaster condition解除。
  26. 根据权利要求23所述的网络接入引导方法，还包括：
    所述第一网络侧设备通过空口发送第二信息，所述第二信息指示所述第一网络能够提供接入服务。
  27. 一种网络接入引导装置，包括：
    发送模块，用于向第二网络接入网侧设备发送辅助信息，所述辅助信息用以指示终端接入第一网络。
  28. 根据权利要求27所述的网络接入引导装置，其中，所述终端曾访问所述第一网络。
  29. 根据权利要求27所述的网络接入引导装置，其中，所述辅助信息的发送方式为以下至少一项：
    非接入层NAS消息；
    核心网与接入网侧设备间接口NGAP消息。
  30. 根据权利要求27所述的网络接入引导装置，其中，所述辅助信息包括以下至少一项：所述第一网络的信息；指示信息；原因值；所述终端的信息。
  31. 根据权利要求30所述的网络接入引导装置，其中，所述指示信息为以下至少一项：去注册消息；释放消息。
  32. 根据权利要求30所述的网络接入引导装置，其中，所述原因值指示灾情disaster condition解除。
  33. 根据权利要求30所述的网络接入引导装置，其中，所述终端的信息包括以下至少一项：用户标识；终端的设备标识。
  34. 根据权利要求27所述的网络接入引导装置，其中，所述装置还包括：
    接收模块，用于接收所述第一网络的第一信息。
  35. 根据权利要求34所述的网络接入引导装置，其中，所述第一信息指示所述第一网络灾情disaster condition解除。
  36. 一种网络接入引导装置，包括：
    接收模块，用于接收第二网络侧核心网功能实体的辅助信息，所述辅助信息用以指示终端接入第一网络；
    发送模块，用于通过空口发送所述辅助信息。
  37. 根据权利要求36所述的网络接入引导装置，其中，所述辅助信息包括以下至少一项：所述第一网络的信息；指示信息；原因值；所述终端的信息。
  38. 根据权利要求36所述的网络接入引导装置，其中，所述指示信息为以下至少一项：去注册消息；释放消息。
  39. 根据权利要求36所述的网络接入引导装置，其中，所述原因值指示灾情disaster condition解除。
  40. 根据权利要求36所述的网络接入引导装置，其中，所述终端的信息包括以下至少一项：用户标识；终端的设备标识。
  41. 根据权利要求36所述的网络接入引导装置，其中，所述辅助信息的发送方式为以下至少一项：
    广播消息；
    非接入层NAS消息；
    接入层AS消息。
  42. 一种网络接入引导装置，包括：
    接收模块，用于接收第二网络接入网侧设备的辅助信息，所述辅助信息用以指示第一终端接入第一网络；
    去注册模块，用于基于所述辅助信息执行去注册过程。
  43. 根据权利要求42所述的网络接入引导装置，其中，所述第一终端曾接入所述第一网络。
  44. 根据权利要求42所述的网络接入引导装置，其中，所述辅助信息包括在以下至少一项中：
    广播消息；
    非接入层NAS消息；
    接入层AS消息。
  45. 根据权利要求44所述的网络接入引导装置，其中，所述NAS消息包括去注册请求消息和/或NAS请求拒绝消息，所述AS消息包括AS请求拒绝消息。
  46. 根据权利要求42所述的网络接入引导装置，还包括：
    处理模块，用于基于所述辅助信息执行公共陆地移动网PLMN选择或网络选择或网络重选。
  47. 根据权利要求46所述的网络接入引导装置，其中，
    所述处理模块选择禁止PLMN列表之外的PLMN。
  48. 根据权利要求42所述的网络接入引导装置，其中，
    所述接收模块还用于接收所述第一网络的第一信息，所述第一信息指示第一网络灾情disaster condition解除，所述第一信息包含在所述第一网络的系统消息中。
  49. 一种网络接入引导装置，包括：
    发送模块，用于向第二网络侧核心网功能实体或第二网络接入网侧设备发送第一信息，所述第一信息指示终端接入第一网络。
  50. 根据权利要求49所述的网络接入引导装置，其中，所述终端曾访问所述第一网络。
  51. 根据权利要求49所述的网络接入引导装置，其中，第一信息用于指示第一网络的灾情disaster condition解除。
  52. 根据权利要求49所述的网络接入引导装置，其中，
    所述发送模块还用于通过空口发送第二信息，所述第二信息指示所述第一网络能够提供接入服务。
  53. 一种电子设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1-26中任一项所述的方法的步骤。
  54. 一种可读存储介质，其上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1-26中任一项所述的方法的步骤。
  55. 一种芯片，包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如权利要求1-26中任一项所述的方法的步骤。
  56. 一种电子设备，被配置为执行如权利要求1-26中任一项所述的方法的步骤。
  57. 一种程序产品，所述程序产品存储于非瞬态的可读存储介质，所述程序产品被处理器执行时实现如权利要求1-26中任一项所述的方法的步骤。
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SAMSUNG: "FS_MINT 22831 P-CR: Disaster Begins and Ends Use Cases", 3GPP DRAFT; S1-191108-FS_MINT_22834_PCR_USE-CASES-02, vol. SA WG1, 26 April 2019 (2019-04-26), Suzhou, China, pages 1 - 3, XP051719053 *
SAMSUNG: "FS_MINT 22831 P-CR: Disaster Begins and Ends Use Cases", 3GPP DRAFT; S1-191423-WAS1108-FS_MINT_22834_PCR_USE-CASES, vol. SA WG1, 13 May 2019 (2019-05-13), Suzhou, China, pages 1 - 3, XP051743601 *
VIVO: "Solution #X: The quick return to PLMN with Disaster Condition", 3GPP DRAFT; C1-210177, vol. CT WG1, 18 January 2021 (2021-01-18), pages 1 - 2, XP051969904 *
VIVO: "Solution #X: The quick return to PLMN with Disaster Condition", 3GPP DRAFT; C1-210391, vol. CT WG1, 28 January 2021 (2021-01-28), pages 1 - 2, XP051975504 *

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