Disaster condition roaming handling method, terminal and network side device

Abstract

The application discloses a disaster condition roaming processing method, a terminal and a network side device, and belongs to the technical field of communication. The disaster condition roaming processing method comprises the following steps: a terminal receives a first message sent by a first network, wherein information carried by the first message is used for indicating that the first network is a non-prohibited public land mobile network (PLMN) of the terminal, and the first network is a network providing disaster condition (DC) roaming service for the terminal; and the terminal performs a first operation according to the first message; wherein the first operation comprises at least one of the following: updating a prohibited PLMN list of the terminal, deregistering from the first network, and performing normal registration in the first network.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a disaster roaming processing method, terminal, and network-side equipment. Background Technology

[0002] In the event of a disaster (such as a fire), mobile networks may be unable to provide service. Therefore, related technologies specify that 3GPP systems should be able to enable terminals on a given public land mobile network (PLMN) to obtain connectivity services (e.g., voice calls, mobile data services) from another PLMN, for areas where Disaster Conditions (DCs) apply. If Disaster Conditions apply and no other PLMNs are available besides those on the forbidden PLMN (FPLMN) list, the 3GPP system should be able to provide a method for terminals to access PLMNs on the forbidden PLMN list. In non-disaster scenarios, terminals cannot access FPLMNs.

[0003] When a UE selects an FPLMN to access and obtain DC services, but due to certain scenarios, such as roaming protocol updates, the selected PLMN is no longer an FPLMN, the network will send a "Not registered for disaster roaming service" message, causing the terminal to be unable to access the PLMN. Therefore, the relevant technologies do not clearly specify how to handle the situation where the PLMN providing DC roaming services to the terminal is no longer an FPLMN. Summary of the Invention

[0004] This application provides a disaster roaming handling method, terminal, and network-side device, which can solve the problem of how to handle situations where the PLMN providing DC roaming services to the terminal is no longer an FPLMN.

[0005] Firstly, a disaster condition roaming handling method is provided, the method comprising:

[0006] The terminal receives a first message sent by a first network. The information carried in the first message is used to indicate that the first network is a non-prohibited public land mobile network (PLMN) for the terminal. The first network is a network that provides disaster condition DC roaming services for the terminal.

[0007] The terminal executes the first operation based on the first message;

[0008] The first operation includes at least one of the following:

[0009] Update the blocked PLMN list for the terminal;

[0010] Register from the first network;

[0011] Normal registration is performed on the first network.

[0012] Secondly, a disaster condition roaming handling method is provided, which includes:

[0013] The first network sends a first message to the terminal, the information carried in the first message being used to indicate that the first network is a non-prohibited public land mobile network (PLMN) for the terminal, wherein the first network is a network that provides disaster condition DC roaming services for the terminal.

[0014] Thirdly, a disaster condition roaming processing apparatus is provided, the apparatus comprising:

[0015] The first receiving unit is configured to receive a first message sent by a first network, wherein the information carried in the first message is used to indicate that the first network is a non-prohibited public land mobile network (PLMN) for the terminal, wherein the first network is a network that provides disaster condition DC roaming service for the terminal.

[0016] The first execution unit is configured to perform a first operation based on the first message;

[0017] The first operation includes at least one of the following:

[0018] Update the blocked PLMN list for the terminal;

[0019] Register from the first network;

[0020] Normal registration is performed on the first network.

[0021] Fourthly, a disaster condition roaming processing apparatus is provided, the apparatus comprising:

[0022] The first sending unit is configured to send a first message to the terminal, the information carried in the first message being used to indicate that the first network is the non-prohibited public land mobile network (PLMN) of the terminal, wherein the first network is a network that provides disaster condition DC roaming service for the terminal.

[0023] Fifthly, a terminal is provided, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the disaster condition roaming processing method as described in the first aspect.

[0024] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is configured to receive a first message sent by a first network, the first message carrying information for indicating that the first network is a non-prohibited public land mobile network (PLMN) of the terminal, wherein the first network is a network that provides disaster condition DC roaming services for the terminal; the processor is configured to perform a first operation according to the first message; wherein the first operation includes at least one of the following: updating the prohibited PLMN list of the terminal; deregistering from the first network; and performing normal registration on the first network.

[0025] In a seventh aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the disaster condition roaming processing method as described in the second aspect.

[0026] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a first message to a terminal, the first message carrying information used to indicate that the first network is a non-prohibited public land mobile network (PLMN) of the terminal, wherein the first network is a network that provides disaster condition DC roaming services for the terminal.

[0027] A ninth aspect provides a disaster condition roaming processing system, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the disaster condition roaming processing method as described in the first aspect, and the network-side device can be used to perform the steps of the disaster condition roaming processing method as described in the second aspect.

[0028] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the disaster condition roaming processing method as described in the first aspect, or implement the steps of the disaster condition roaming processing method as described in the second aspect.

[0029] Eleventhly, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the disaster condition roaming processing method as described in the first aspect, or to implement the disaster condition roaming processing method as described in the second aspect.

[0030] In a twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and executed by at least one processor to implement the steps of the disaster condition roaming processing method as described in the first aspect, or to implement the disaster condition roaming processing method as described in the second aspect.

[0031] In this embodiment of the application, when the terminal learns that the first network has become a non-banned PLMN, it performs a first operation to enable the first network to provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs. Attached Figure Description

[0032] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0033] Figure 2 One of the flowcharts for the disaster condition roaming processing method provided in the embodiments of this application;

[0034] Figure 3 A second schematic flowchart illustrating the disaster condition roaming processing method provided in this application embodiment;

[0035] Figure 4 One of the interactive flow diagrams of the disaster condition roaming processing method provided in the embodiments of this application;

[0036] Figure 5 A second interactive flowchart illustrating the disaster condition roaming processing method provided in this application embodiment;

[0037] Figure 6 One of the structural schematic diagrams of the disaster condition roaming processing device provided in the embodiments of this application;

[0038] Figure 7 A second schematic diagram of the disaster condition roaming processing device provided in the embodiments of this application;

[0039] Figure 8 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0040] Figure 9 This is a schematic diagram of the terminal structure provided in the embodiments of this application;

[0041] Figure 10 A schematic diagram of the network-side device is provided for an embodiment of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0043] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0045] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment 12 may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment 12 may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for description, and the specific type of base station is not limited.Core network equipment may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), Binding Support Function (BSF), and Application Function. Function (AF), etc. It should be noted that the embodiments of this application only use the core network equipment in the NR system as an example for introduction, and do not limit the specific type of core network equipment.

[0046] The disaster roaming processing method, terminal, and network-side equipment provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0047] Figure 2 This is one of the flowcharts illustrating the disaster condition roaming processing method provided in this application embodiment. Figure 2 As shown, the method includes steps 200 and 201.

[0048] Step 200: The terminal receives the first message sent by the first network.

[0049] The information carried in the first message is used to indicate that the first network is the non-prohibited public land mobile network (PLMN) of the terminal.

[0050] The first network is a network that provides disaster recovery roaming services for the terminal.

[0051] Understandably, if the first network providing disaster condition roaming service to the terminal detects that the first network has become a non-banned PLMN for the terminal—in other words, the first network is not in the terminal's banned PLMN list—then the first network can provide normal service to the terminal, instead of disaster condition roaming service. In this case, the first network sends a first message to the terminal, carrying information indicating that the first network is a non-banned PLMN for the terminal.

[0052] Step 201: The terminal performs the first operation based on the first message.

[0053] After receiving the first message, the terminal learns from the first message that the first network is a non-banned PLMN of the terminal, and then performs a first operation, which includes at least one of the following:

[0054] Update the blocked PLMN list for the terminal;

[0055] Register from the first network;

[0056] Normal registration is performed on the first network.

[0057] Understandably, once a terminal learns that the first network has become a non-banned PLMN, it can initiate a normal registration process with the first network. As a result, if the first network becomes a non-banned PLMN for the terminal, the first network can provide normal services to the terminal instead of DC services.

[0058] Optionally, the terminal registers from the first network before initiating the normal registration process.

[0059] Optionally, after the terminal learns that the first network has become a non-banned PLMN, it can update the terminal's list of banned PLMNs.

[0060] Optionally, updating the terminal's blocked PLMN list includes:

[0061] Remove the first network from the terminal's list of banned PLMNs.

[0062] It should be noted that normal registration in this application embodiment includes: initial registration, mobility registration update, or periodic registration update.

[0063] In this embodiment of the application, when the terminal learns that the first network has become a non-banned PLMN, it performs a first operation to enable the first network to provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs.

[0064] In some embodiments, the information carried by the first message includes at least one of the following: first information; first instruction information; second instruction information.

[0065] 1) First information, used to indicate that the first network is a non-banned PLMN of the terminal;

[0066] In other words, the first network is not in the terminal's list of forbidden PLMNs.

[0067] Optionally, the first information includes at least one of the following: an indicator for indicating that the first network is a non-banned PLMN of the terminal; and the PLMN identifier of the first network.

[0068] Optionally, the indicator can be a new parameter or a registration result.

[0069] The new parameter refers to the indicator being a newly defined parameter used to indicate that the first network is the non-banned PLMN of the terminal.

[0070] Optionally, the indicator can also be a registration result, where the registration result indicates that the first network is a non-banned PLMN for the terminal. For example, the terminal initiates DC registration with the first network, and the first network is a banned PLMN for the terminal. However, in some cases, such as when the roaming policy between the first network and the terminal's home network changes, the first network becomes a non-banned PLMN for the terminal. In this case, the registration result returned by the first network is "Disaster Roaming Service Not Registered" or "Normal Registration". Based on this registration result, the terminal can know that the first network has become a non-banned PLMN for the terminal.

[0071] 2) The first instruction information is used to indicate the re-registration requirement information;

[0072] The re-registration requirement information refers to "re-registration required".

[0073] The first instruction information can also be called the re-registration requirement instruction information.

[0074] 3) The second instruction information is used to instruct the terminal to update the context and change the registration type to normal registration.

[0075] The second instruction information can also be called the normal registration instruction information.

[0076] In some embodiments, the first message includes at least one of the following:

[0077] A registration request message, wherein the registration request message is used to instruct the terminal to register from the first network;

[0078] Configure update commands;

[0079] Parameter update command;

[0080] Downlink NAS message.

[0081] In one embodiment, the first message is a deregistration request message, which carries information including at least one of the following: first information; first instruction information; and second instruction information.

[0082] For example, the terminal receives a deregistration request message from the first network, which carries reregistration request information and normal registration instruction information. Based on this deregistration request message, the terminal removes the first network from its blocked PLMN list, deregisters from the first network, and performs normal registration on the first network.

[0083] In one embodiment, the first message is a configuration update command, and the information carried by the configuration update command includes at least one of the following: first information; first instruction information; and second instruction information.

[0084] For example, the terminal receives a configuration update command from the first network, which carries normal registration indication information. Based on this configuration update command, the terminal removes the first network from its blocked PLMN list, deregisters with the first network, and performs normal registration on the first network.

[0085] In one embodiment, the first message is a parameter update command, and the information carried by the parameter update command includes at least one of the following: first information; first indication information; and second indication information.

[0086] For example, the terminal receives a parameter update command from the first network, which carries normal registration indication information. Based on this parameter update command, the terminal removes the first network from its blocked PLMN list, deregisters with the first network, and performs normal registration on the first network.

[0087] In one embodiment, the first message is a downlink non-access stratum (NAS) message, and the information carried by the downlink NAS message includes at least one of the following: first information; first indication information; and second indication information.

[0088] For example, the terminal receives a downlink NAS message from a first network, which carries normal registration indication information. Based on this downlink NAS message, the terminal removes the first network from its blocked PLMN list, deregisters with the first network, and performs normal registration on the first network.

[0089] The first information, the first instruction information, and the second instruction information are as described in the previous embodiments and will not be repeated here.

[0090] Optionally, performing normal registration in the first network includes:

[0091] A second message is sent to the first network, the second message being used to request normal registration with the first network.

[0092] In some embodiments, the second message may be an initial registration request message, or a mobility and periodic registration update request message.

[0093] The second message can also be called a normal registration request message or a registration request message.

[0094] The terminal sends a second message to the first network, thereby enabling normal registration to be performed on the first network.

[0095] Optionally, when the first message is a configuration update command, parameter update command, or downlink NAS message, the registration from the first network includes at least one of the following:

[0096] a) Register from the first network within a specific time threshold;

[0097] The specific time threshold can be indicated by the first network or preset.

[0098] In one implementation, the terminal can immediately execute the deregistration process when a specific time threshold is 0 or close to zero.

[0099] b) If the terminal enters an idle state, register from the first network;

[0100] c) If the first service of the terminal ends, register from the first network;

[0101] The first service includes at least one of the following: Multimedia telephone (MMTEL) voice call; MMTEL video call; Short message service sent over NAS layer (SMS over NAS, SMSoNAS) or Short message service sent over IP layer (SMS over IP, SMSoIP).

[0102] It is understandable that the first business is a high-priority task for the terminal. After the high-priority task on the terminal is completed, the deregistration process is executed, so that the terminal can execute the deregistration process while meeting the business requirements.

[0103] After the deregistration process is executed, the terminal performs the normal registration process.

[0104] Optionally, the first message is transmitted through at least one of the following processes: UE configuration update (UCU) process, UE parameter update (UPU) process, and steering of roaming (SoR) process.

[0105] Understandably, if the first message is a configuration update command, the first message will be transmitted in the UCU process.

[0106] When the first message is a parameter update command, the first message is passed in the UPU process.

[0107] When the first message is a downlink non-access stratum (NAS) message, the first message is transmitted in the SoR process.

[0108] In this embodiment, the terminal receives a first message, learns that the first network has become a non-banned PLMN, and performs a first operation to enable the first network to provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs.

[0109] Figure 3 This is a second schematic flowchart illustrating the disaster condition roaming processing method provided in this application embodiment. For example... Figure 3 As shown, the method includes step 300.

[0110] Step 300: The first network sends the first message to the terminal.

[0111] The information carried in the first message is used to indicate that the first network is the non-prohibited public land mobile network (PLMN) of the terminal, wherein the first network is a network that provides disaster condition DC roaming service for the terminal.

[0112] Understandably, if the first network detects that it has become a non-banned PLMN for the terminal—in other words, the first network is not in the terminal's banned PLMN list—then the first network can provide normal service to the terminal, instead of DC roaming service. Therefore, the first network sends a first message to the terminal, carrying information indicating that the first network is a non-banned PLMN for the terminal, so that the terminal receives the first message and performs a first operation based on it.

[0113] It should be noted that the first network can be a network-side device, such as an access network device or a core network device; this embodiment does not impose any specific limitations.

[0114] The first operation includes at least one of the following: updating the terminal's blocked PLMN list; deregistering from the first network; and performing normal registration on the first network.

[0115] In some embodiments, the information carried by the first message includes at least one of the following: first information; first instruction information; second instruction information.

[0116] 1) First information, used to indicate that the first network is a non-banned PLMN of the terminal;

[0117] In other words, the first network is not in the terminal's list of forbidden PLMNs.

[0118] Optionally, the first information includes at least one of the following: an indicator for indicating that the first network is a non-banned PLMN of the terminal; and the PLMN identifier of the first network.

[0119] Optionally, the indicator can be a new parameter or a registration result.

[0120] The new parameter refers to the indicator being a newly defined parameter used to indicate that the first network is the non-banned PLMN of the terminal.

[0121] Optionally, the indicator can also be a registration result, where the registration result indicates that the first network is a non-banned PLMN for the terminal. For example, the terminal initiates DC registration with the first network, and the first network is a banned PLMN for the terminal. However, in some cases, such as when the roaming policy between the first network and the terminal's home network changes, the first network becomes a non-banned PLMN for the terminal. In this case, the registration result returned by the first network is "Disaster Roaming Service Not Registered" or "Normal Registration". Based on this registration result, the terminal can know that the first network has become a non-banned PLMN for the terminal.

[0122] 2) The first instruction information is used to indicate the re-registration requirement information;

[0123] The re-registration requirement information refers to "re-registration required".

[0124] The first instruction information can also be called the re-registration requirement instruction information.

[0125] 3) The second instruction information is used to instruct the terminal to update the context and change the registration type to normal registration.

[0126] The second instruction information can also be called the normal registration instruction information.

[0127] Optionally, the first network sends a first message to the terminal, including:

[0128] If the first condition is met, the first network sends a first message to the terminal;

[0129] The first condition includes at least one of the following:

[0130] The roaming policy between the first network and the home network of the terminal changes;

[0131] The first network detected that it was not in the terminal's blocked PLMN list.

[0132] Understandably, when the first network detects that it is not in the terminal's blocked PLMN list, the first network sends a first message to the terminal.

[0133] The fact that the first network is not in the terminal's banned PLMN list may be due to a change in the roaming policy between the first network and the terminal's home network. Therefore, in one embodiment, when the roaming policy between the first network and the terminal's home network changes, the first network sends a first message to the terminal. Alternatively, when the roaming policy between the first network and the terminal's home network changes and the first network detects that the first network is not in the terminal's banned PLMN list, the first network sends a first message to the terminal.

[0134] Optionally, the normal registration includes: initial registration, mobility registration update, or periodic registration update.

[0135] In some embodiments, the first message includes at least one of the following:

[0136] A registration request message, wherein the registration request message is used to instruct the terminal to register from the first network;

[0137] Configure update commands;

[0138] Parameter update command;

[0139] Downlink NAS message.

[0140] In one embodiment, the first message is a deregistration request message, which carries information including at least one of the following: first information; first instruction information; and second instruction information.

[0141] In one embodiment, the first message is a configuration update command, and the information carried by the configuration update command includes at least one of the following: first information; first instruction information; and second instruction information.

[0142] In one embodiment, the first message is a parameter update command, and the information carried by the parameter update command includes at least one of the following: first information; first indication information; and second indication information.

[0143] In one embodiment, the first message is a downlink non-access stratum (NAS) message, and the information carried by the downlink NAS message includes at least one of the following: first information; first indication information; and second indication information.

[0144] The first information, the first instruction information, and the second instruction information are as described in the previous embodiments and will not be repeated here.

[0145] Optionally, the method further includes:

[0146] The terminal sends a second message, which requests normal registration with the first network.

[0147] In some embodiments, the second message may be an initial registration request message, or a mobility and periodic registration update request message.

[0148] The second message can also be called a normal registration request message or a registration request message.

[0149] The first network receives the second message sent by the terminal, thereby enabling the terminal to register normally on the first network.

[0150] Optionally, the first message is transmitted through at least one of the following processes: UE configuration update UCU process, UE parameter update UPU process, and roaming guidance SoR process.

[0151] Understandably, if the first message is a configuration update command, the first message will be transmitted in the UCU process.

[0152] When the first message is a parameter update command, the first message is passed in the UPU process.

[0153] When the first message is a downlink non-access stratum (NAS) message, the first message is transmitted in the SoR process.

[0154] In this embodiment, when the first network detects that it has become a non-banned PLMN of the terminal, it sends a first message to the terminal, enabling the terminal to register normally with the first network. This allows the first network to provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs.

[0155] Figure 4 This is one of the interactive flow diagrams of the disaster condition roaming processing method provided in the embodiments of this application, such as... Figure 4 As shown, the method includes:

[0156] Step 400: The first network detects that it is a non-banned PLMN of the terminal, and / or the roaming policy between the first network and the home network of the terminal changes;

[0157] Step 401: The first network sends a registration request message to the terminal;

[0158] Step 402: The terminal updates the blocked PLMN list and registers from the first network;

[0159] Step 403: The terminal sends a second message to the first network, the second message being used to request normal registration with the first network.

[0160] Figure 5 The second interactive flowchart of the disaster condition roaming processing method provided in the embodiments of this application is shown below. Figure 5 As shown, the method includes:

[0161] Step 500: The first network detects that it is a non-banned PLMN of the terminal, and / or the roaming policy between the first network and the home network of the terminal changes.

[0162] Step 501: The first network sends a configuration update command, parameter update command or downlink non-access stratum (NAS) message to the terminal;

[0163] Step 502: The terminal updates its blocked PLMN list and registers from the first network;

[0164] Step 503: The terminal sends a second message to the first network, the second message being used to request normal registration with the first network.

[0165] The disaster condition roaming processing method provided in this application can be executed by a disaster condition roaming processing device. This application uses the example of a disaster condition roaming processing device executing the disaster condition roaming processing method to illustrate the disaster condition roaming processing device provided in this application.

[0166] Figure 6 This is one of the structural schematic diagrams of the disaster condition roaming processing device provided in the embodiments of this application. Figure 6 As shown, the disaster condition roaming processing device 600 includes: a first receiving unit 610 and a first execution unit 620, wherein,

[0167] The first receiving unit 610 is configured to receive a first message sent by a first network, wherein the information carried in the first message is used to indicate that the first network is a non-prohibited public land mobile network (PLMN) for the terminal, wherein the first network is a network that provides disaster condition DC roaming service for the terminal.

[0168] The first execution unit 620 is configured to execute a first operation based on the first message;

[0169] The first operation includes at least one of the following:

[0170] Update the blocked PLMN list for the terminal;

[0171] Register from the first network;

[0172] Normal registration is performed on the first network.

[0173] In this embodiment of the application, when the disaster condition roaming processing device learns that the first network has become a non-banned PLMN, it performs a first operation to enable the first network to provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs.

[0174] Optionally, the information carried by the first message includes at least one of the following:

[0175] The first information is used to indicate that the first network is a non-banned PLMN of the terminal;

[0176] The first instruction information is used to indicate the re-registration requirement information;

[0177] The second instruction information is used to instruct the terminal to update the context and change the registration type to normal registration.

[0178] Optionally, the first information includes at least one of the following:

[0179] An indicator used to indicate that the first network is a non-banned PLMN of the terminal;

[0180] The PLMN identifier of the first network.

[0181] Optionally, the indicator can be a new parameter or a registration result.

[0182] Optionally, the first message includes at least one of the following:

[0183] A registration request message, wherein the registration request message is used to instruct the terminal to register from the first network;

[0184] Configure update commands;

[0185] Parameter update command;

[0186] Downlink NAS message.

[0187] Optionally, when the first message is a configuration update command, parameter update command, or downlink NAS message, the registration from the first network includes at least one of the following:

[0188] Register from the first network within a specific time threshold;

[0189] When the terminal enters an idle state, it registers with the first network;

[0190] If the first service of the terminal ends, it shall register from the first network;

[0191] The first service includes at least one of the following: MMTEL voice call; MMTEL video call; SMSoNAS service sent through the NAS layer or SMSoIP service sent through the IP layer.

[0192] Optionally, performing normal registration in the first network includes:

[0193] A second message is sent to the first network, the second message being used to request normal registration with the first network.

[0194] Optionally, updating the terminal's blocked PLMN list includes:

[0195] Remove the first network from the terminal's list of banned PLMNs.

[0196] Optional: Initial registration, mobility registration update, or periodic registration update.

[0197] Optionally, the first message is transmitted through at least one of the following processes: UE configuration update UCU process, UE parameter update UPU process, and roaming guidance SoR process.

[0198] In this embodiment of the application, the disaster condition roaming processing device receives a first message, learns that the first network has become a non-banned PLMN, and performs a first operation to enable the first network to provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs.

[0199] The disaster roaming processing device in this application embodiment can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or other devices besides a terminal. For example, the terminal can include, but is not limited to, the type of terminal 11 listed above; other devices can be servers, network attached storage (NAS), etc., and this application embodiment does not specifically limit the type.

[0200] The disaster condition roaming processing device provided in this application embodiment can achieve... Figure 2 , Figure 4 or Figure 5 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0201] Figure 7 This is a second schematic diagram of the disaster condition roaming processing device provided in an embodiment of this application. Figure 7 As shown, the disaster condition roaming processing device 700 includes:

[0202] The first sending unit 710 is configured to send a first message to the terminal. The information carried in the first message is used to indicate that the first network is the non-prohibited public land mobile network (PLMN) of the terminal, wherein the first network is a network that provides disaster condition DC roaming service for the terminal.

[0203] Optionally, the information carried by the first message includes at least one of the following:

[0204] The first information is used to indicate that the first network is a non-banned PLMN of the terminal;

[0205] The first instruction information is used to indicate the re-registration requirement information;

[0206] The second instruction information is used to instruct the terminal to update the context and change the registration type to normal registration.

[0207] Optionally, the first information includes at least one of the following:

[0208] An indicator that the first network is a non-banned PLMN of the terminal;

[0209] The PLMN identifier of the first network.

[0210] Optionally, the indicator can be a new parameter or a registration result.

[0211] Optionally, the first message includes at least one of the following:

[0212] A registration request message, wherein the registration request message is used to instruct the terminal to register from the first network;

[0213] Configure update commands;

[0214] Parameter update command;

[0215] Downlink NAS message.

[0216] Optionally, the method further includes:

[0217] The terminal sends a second message, which requests normal registration with the first network.

[0218] Optionally, the first message is transmitted through at least one of the following processes: UE configuration update UCU process, UE parameter update UPU process, and roaming guidance SoR process.

[0219] Optionally, the normal registration includes: initial registration, mobility registration update, or periodic registration update.

[0220] Optionally, the first network sends a first message to the terminal, including:

[0221] If the first condition is met, the first network sends a first message to the terminal;

[0222] The first condition includes at least one of the following:

[0223] The roaming policy between the first network and the home network of the terminal changes;

[0224] The first network detected that it was not in the terminal's blocked PLMN list.

[0225] In this embodiment, when the disaster condition roaming processing device detects that it has become a non-banned PLMN of the terminal, it sends a first message to the terminal, enabling the terminal to register normally with the first network, so that the first network can provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs.

[0226] The disaster condition roaming processing device provided in this application embodiment can achieve... Figure 3 , Figure 4 and Figure 5The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0227] Optional, such as Figure 8 As shown, this application embodiment also provides a communication device 800, including a processor 801 and a memory 802. The memory 802 stores programs or instructions that can run on the processor 801. For example, when the communication device 800 is a terminal, the program or instructions executed by the processor 801 implement the various steps of the above-described disaster condition roaming processing method embodiment and achieve the same technical effect. When the communication device 800 is a network-side device, the program or instructions executed by the processor 801 implement the various steps of the above-described disaster condition roaming processing method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0228] This application embodiment also provides a terminal, including a processor and a communication interface. The communication interface is used to receive a first message sent by a first network, wherein the first message carries information indicating that the first network is a non-prohibited public land mobile network (PLMN) of the terminal, wherein the first network is a network that provides disaster condition DC roaming service for the terminal; the processor is used to perform a first operation according to the first message, wherein the first operation includes at least one of the following: updating the prohibited PLMN list of the terminal; deregistering from the first network; and performing normal registration on the first network. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 9 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0229] The terminal 900 includes, but is not limited to, at least some of the following components: radio frequency unit 901, network module 902, audio output unit 903, input unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, and processor 910.

[0230] Those skilled in the art will understand that the terminal 900 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 910 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 9 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0231] It should be understood that, in this embodiment, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042. The GPU 9041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 907 includes at least one of a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0232] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 901 can transmit it to the processor 910 for processing; in addition, the radio frequency unit 901 can send uplink data to the network-side device. Typically, the radio frequency unit 901 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0233] The memory 909 can be used to store software programs or instructions, as well as various data. The memory 909 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 909 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 909 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0234] Processor 910 may include one or more processing units; optionally, processor 910 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 910.

[0235] The radio frequency unit 901 is used to receive a first message sent by a first network. The information carried in the first message is used to indicate that the first network is a non-prohibited public land mobile network (PLMN) for the terminal. The first network is a network that provides disaster condition DC roaming service for the terminal.

[0236] Processor 910 is configured to perform a first operation based on the first message;

[0237] The first operation includes at least one of the following:

[0238] Update the blocked PLMN list for the terminal;

[0239] Register from the first network;

[0240] Normal registration is performed on the first network.

[0241] In this embodiment of the application, when the terminal learns that the first network has become a non-banned PLMN, it performs a first operation to enable the first network to provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs.

[0242] Optionally, the information carried by the first message includes at least one of the following:

[0243] The first information is used to indicate that the first network is a non-banned PLMN of the terminal;

[0244] The first instruction information is used to indicate the re-registration requirement information;

[0245] The second instruction information is used to instruct the terminal to update the context and change the registration type to normal registration.

[0246] Optionally, the first information includes at least one of the following:

[0247] An indicator used to indicate that the first network is a non-banned PLMN of the terminal;

[0248] The PLMN identifier of the first network.

[0249] Optionally, the indicator can be a new parameter or a registration result.

[0250] Optionally, the first message includes at least one of the following:

[0251] A registration request message, wherein the registration request message is used to instruct the terminal to register from the first network;

[0252] Configure update commands;

[0253] Parameter update command;

[0254] Downlink NAS message.

[0255] Optionally, when the first message is a configuration update command, parameter update command, or downlink NAS message, the registration from the first network includes at least one of the following:

[0256] Register from the first network within a specific time threshold;

[0257] When the terminal enters an idle state, it registers with the first network;

[0258] If the first service of the terminal ends, it shall register from the first network;

[0259] The first service includes at least one of the following: MMTEL voice call; MMTEL video call; SMSoNAS service sent through the NAS layer or SMSoIP service sent through the IP layer.

[0260] Optionally, performing normal registration in the first network includes:

[0261] A second message is sent to the first network, the second message being used to request normal registration with the first network.

[0262] Optionally, updating the terminal's blocked PLMN list includes:

[0263] Remove the first network from the terminal's list of banned PLMNs.

[0264] Optionally, the normal registration includes: initial registration, mobility registration update, or periodic registration update.

[0265] Optionally, the first message is transmitted through at least one of the following processes: UE configuration update UCU process, UE parameter update UPU process, and roaming guidance SoR process.

[0266] In this embodiment, the terminal receives a first message, learns that the first network has become a non-banned PLMN, and performs a first operation to enable the first network to provide normal services to the terminal, thereby avoiding service interruption and meeting the terminal's service needs.

[0267] This application embodiment also provides a network-side device, including a processor and a communication interface. The communication interface is used to send a first message to a terminal. The information carried in the first message is used to indicate that the first network is a non-prohibited public land mobile network (PLMN) for the terminal, wherein the first network is a network that provides disaster condition data center (DC) roaming services for the terminal. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0268] Specifically, embodiments of this application also provide a network-side device. For example... Figure 10As shown, the network-side device 1000 includes: an antenna 1001, a radio frequency (RF) device 1002, a baseband device 1003, a processor 1004, and a memory 1005. The antenna 1001 is connected to the RF device 1002. In the uplink direction, the RF device 1002 receives information through the antenna 1001 and transmits the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be transmitted and sends it to the RF device 1002. The RF device 1002 processes the received information and transmits it through the antenna 1001.

[0269] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1003, which includes a baseband processor.

[0270] The baseband device 1003 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 10 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1005 via a bus interface to call the program in the memory 1005 and execute the network device operation shown in the above method embodiment.

[0271] The network-side device may also include a network interface 1006, such as a common public radio interface (CPRI).

[0272] Specifically, the network-side device 1000 of this embodiment further includes: instructions or programs stored in a memory 1005 and executable on a processor 1004, wherein the processor 1004 calls the instructions or programs in the memory 1005 to execute. Figure 7 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0273] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described disaster condition roaming processing method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0274] The processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0275] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described disaster condition roaming processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0276] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0277] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described disaster condition roaming processing method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0278] This application also provides a disaster condition roaming processing system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the disaster condition roaming processing method described above, and the network-side device can be used to execute the steps of the disaster condition roaming processing method described above.

[0279] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0280] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0281] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for handling disaster condition roaming, characterized in that, include: The terminal receives a first message sent by a first network. The information carried in the first message is used to indicate that the first network is a non-prohibited public land mobile network (PLMN) of the terminal. The first network is a network that provides disaster condition DC roaming service to the terminal. The first message is sent by the first network when it detects that the first network has become a non-prohibited PLMN of the terminal. The terminal executes the first operation based on the first message; The first operation includes: Perform normal registration in the first network; The step of performing normal registration in the first network includes: A second message is sent to the first network, the second message being used to request normal registration with the first network.

2. The disaster condition roaming processing method according to claim 1, characterized in that, The first operation further includes at least one of the following: Update the blocked PLMN list for the terminal; Register from the first network.

3. The disaster condition roaming processing method according to claim 1, characterized in that, The information carried by the first message includes at least one of the following: The first information is used to indicate that the first network is a non-banned PLMN of the terminal; The first instruction information is used to indicate the re-registration requirement information; The second instruction information is used to instruct the terminal to update the context and change the registration type to normal registration.

4. The disaster condition roaming processing method according to claim 3, characterized in that, The first information includes at least one of the following: An indicator used to indicate that the first network is a non-banned PLMN of the terminal; The PLMN identifier of the first network.

5. The disaster condition roaming processing method according to claim 4, characterized in that, The indicator includes at least one of the following: a new parameter; a registration result.

6. The disaster condition roaming handling method according to any one of claims 1 to 5, characterized in that, The first message includes at least one of the following: A registration request message, wherein the registration request message is used to instruct the terminal to register from the first network; Configure update commands; Parameter update command; Downlink NAS message.

7. The disaster condition roaming processing method according to claim 6, characterized in that, When the first message is a configuration update command, parameter update command, or downlink NAS message, the registration from the first network includes at least one of the following: Register from the first network within a specific time threshold; When the terminal enters an idle state, it registers with the first network; If the first service of the terminal ends, it shall register from the first network; The first service includes at least one of the following: MMTEL voice call; MMTEL video call; SMSoNAS service sent through the NAS layer or SMSoIP service sent through the IP layer.

8. The disaster condition roaming processing method according to claim 2, characterized in that, The update of the terminal's blocked PLMN list includes: Remove the first network from the terminal's list of banned PLMNs.

9. The disaster condition roaming processing method according to any one of claims 1 to 3, characterized in that, Normal registration includes: initial registration, mobility registration update, or periodic registration update.

10. The disaster condition roaming processing method according to claim 1, characterized in that, The first message is transmitted through at least one of the following processes: UE configuration update UCU process, UE parameter update UPU process, and roaming guidance SoR process.

11. A method for handling disaster condition roaming, characterized in that, include: When the first network detects that the first network has become a non-prohibited public land mobile network (PLMN) of the terminal, it sends a first message to the terminal. The information carried in the first message is used to indicate that the first network is a non-prohibited PLMN of the terminal. The first network is a network that provides disaster condition DC roaming service to the terminal. The method further includes: The terminal sends a second message, which requests normal registration with the first network.

12. The disaster condition roaming processing method according to claim 11, characterized in that, The information carried by the first message includes at least one of the following: The first information is used to indicate that the first network is a non-banned PLMN of the terminal; The first instruction information is used to indicate the re-registration requirement information; The second instruction information is used to instruct the terminal to update the context and change the registration type to normal registration.

13. The disaster condition roaming processing method according to claim 12, characterized in that, The first information includes at least one of the following: An indicator that the first network is a non-banned PLMN of the terminal; The PLMN identifier of the first network.

14. The disaster condition roaming processing method according to claim 13, characterized in that, The indicator includes at least one of the following: a new parameter; a registration result.

15. The disaster condition roaming processing method according to any one of claims 11 to 14, characterized in that, The first message includes at least one of the following: A registration request message, wherein the registration request message is used to instruct the terminal to register from the first network; Configure update commands; Parameter update command; Downlink NAS message.

16. The disaster condition roaming processing method according to claim 11, characterized in that, The first message is transmitted through at least one of the following processes: UE configuration update UCU process, UE parameter update UPU process, and roaming guidance SoR process.

17. The disaster condition roaming processing method according to claim 11 or 12, characterized in that, Normal registration includes: initial registration, mobility registration update, or periodic registration update.

18. A disaster condition roaming processing device, characterized in that, include: The first receiving unit is configured to receive a first message sent by a first network, wherein the information carried in the first message is used to indicate that the first network is a non-prohibited public land mobile network (PLMN) for the terminal, wherein the first network is a network that provides disaster condition DC roaming service for the terminal, and the first message is sent when the first network detects that the first network has become a non-prohibited PLMN for the terminal. The first execution unit is configured to perform a first operation based on the first message; The first operation includes: Perform normal registration in the first network; The step of performing normal registration in the first network includes: A second message is sent to the first network, the second message being used to request normal registration with the first network.

19. A disaster condition roaming processing device, characterized in that, include: The first sending unit is configured to send a first message to the terminal when it is detected that the first network is a non-prohibited public land mobile network (PLMN) of the terminal. The information carried in the first message is used to indicate that the first network is a non-prohibited PLMN of the terminal, wherein the first network is a network that provides disaster condition DC roaming service for the terminal. The device further includes a second receiving unit for: The terminal sends a second message, which requests normal registration with the first network.

20. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the disaster condition roaming processing method as described in any one of claims 1 to 10.

21. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the disaster condition roaming processing method as described in any one of claims 11 to 17.

22. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the disaster condition roaming processing method as described in any one of claims 1 to 10, or implement the steps of the disaster condition roaming processing method as described in any one of claims 11 to 17.

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