Disaster roaming processing method and device, equipment and storage medium

Abstract

The invention relates to a disaster roaming processing method and device, communication equipment, a storage medium and a computer program product. The method comprises the following steps: determining that a network is in a disaster state according to broadcast information of a first radio access technology (RAT); the restriction of the first RAT is ignored. By adopting the method provided by the invention, a network access mode can be provided for the terminal equipment when a base station fault occurs in a visiting 5G network and a service cannot be provided any more, so that the terminal equipment can access a visiting 4G network and carry out 4G disaster roaming so as to obtain a basic communication service.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method, apparatus, device and storage medium for disaster roaming. Background Technology

[0002] Disaster roaming refers to the temporary access of terminal devices to other operators' networks to obtain basic communication services when a catastrophic event occurs in a network area, such as a natural disaster or network failure, causing the main network services to be unavailable.

[0003] Under normal circumstances, terminal devices can only obtain 5G (5th Generation Mobile Communication Technology) inter-network roaming services, and cannot obtain 4G (4th Generation Mobile Communication Technology) inter-network roaming services, meaning they are not allowed to access 4G networks. When the 5G network being accessed experiences a base station failure and can no longer provide services, the terminal device's communication service will be interrupted. Summary of the Invention

[0004] This application provides a disaster roaming processing method, apparatus, communication device, storage medium, and computer program product, which can provide a way for terminal devices to access the network when a base station of a visited 5G network fails and can no longer provide services, so that it can access the visited 4G network and perform 4G disaster roaming to obtain basic communication services.

[0005] A disaster roaming handling method, applied to a terminal device, the method comprising:

[0006] Based on the broadcast information from the first radio access technology (RAT), it was determined that the network was in a state of disaster.

[0007] Ignore the limitations of the first RAT.

[0008] In one embodiment, determining that the network is in a disaster state based on broadcast information from a first radio access technology (RAT) includes:

[0009] Receive broadcast information from a first radio access technology (RAT), the broadcast information including a list of public land mobile networks (PLMNs), the list of PLMNs containing identifiers of PLMNs that are in a state of disaster and are provided with disaster roaming services;

[0010] If the PLMN list includes the identifier of the network, it is determined that the network is in a disaster state and the network provides disaster roaming service through the first RAT.

[0011] In one embodiment, determining that the network is in a disaster state based on broadcast information from a first radio access technology (RAT) includes:

[0012] Receive first broadcast information from a first radio access technology (RAT), the first broadcast information including an identifier of a first PLMN, used to indicate that the first PLMN is in a disaster state;

[0013] Receive a second broadcast message from the first RAT, the second broadcast message including the identifier of the second PLMN, for instructing the second PLMN to provide disaster roaming services through the first RAT;

[0014] If both the identifier of the first PLMN and the identifier of the second PLMN are identifiers of the network, then the network is determined to be in a disaster state and the network provides disaster roaming service through the first RAT.

[0015] In one embodiment, ignoring the limitation of the first RAT includes:

[0016] Remove the first RAT from the RAT restriction list.

[0017] In one embodiment, ignoring the limitation of the first RAT includes:

[0018] Activate the access capability of the first RAT.

[0019] In one embodiment, the method further includes:

[0020] Select a combination of the first RAT and the network, and access the network through the first RAT.

[0021] In one embodiment, accessing the network via the first RAT includes:

[0022] Based on the disaster roaming wait timer, a disaster roaming access request for the network is initiated through the first RAT.

[0023] In one embodiment, before the network is in a disaster state, the terminal device accesses the network via a second radio access technology (RAT).

[0024] In one embodiment, the first RAT is a 4G access technology and the second RAT is a 5G access technology.

[0025] A disaster roaming processing device, the device comprising:

[0026] The determination module is used to determine whether the network is in a disaster state based on the broadcast information of the first radio access technology (RAT).

[0027] A processing module is used to ignore the limitations of the first RAT.

[0028] In one embodiment, the determining module is specifically used for:

[0029] Receive broadcast information from a first radio access technology (RAT), the broadcast information including a list of public land mobile networks (PLMNs), the list of PLMNs containing identifiers of PLMNs that are in a state of disaster and are provided with disaster roaming services;

[0030] If the PLMN list includes the identifier of the network, it is determined that the network is in a disaster state and the network provides disaster roaming service through the first RAT.

[0031] In one embodiment, the determining module is specifically used for:

[0032] Receive first broadcast information from a first radio access technology (RAT), the first broadcast information including an identifier of a first PLMN, used to indicate that the first PLMN is in a disaster state;

[0033] Receive a second broadcast message from the first RAT, the second broadcast message including the identifier of the second PLMN, for instructing the second PLMN to provide disaster roaming services through the first RAT;

[0034] If both the identifier of the first PLMN and the identifier of the second PLMN are identifiers of the network, then the network is determined to be in a disaster state and the network provides disaster roaming service through the first RAT.

[0035] In one embodiment, the processing module is specifically used for:

[0036] Remove the first RAT from the RAT restriction list.

[0037] In one embodiment, the processing module is specifically used for:

[0038] Activate the access capability of the first RAT.

[0039] In one embodiment, the device further includes:

[0040] An access module is used to select a combination of the first RAT and the network, and to access the network through the first RAT.

[0041] In one embodiment, the access module is specifically used for:

[0042] Based on the disaster roaming wait timer, a disaster roaming access request for the network is initiated through the first RAT.

[0043] In one embodiment, before the network is in a disaster state, the terminal device accesses the network via a second radio access technology (RAT).

[0044] In one embodiment, the first RAT is a 4G access technology and the second RAT is a 5G access technology.

[0045] A communication device includes: a processor; the processor is configured to determine, based on broadcast information from a first radio access technology (RAT), that a network is in a disaster state; and to ignore limitations of the first RAT.

[0046] In one embodiment, the communication device further includes a receiver;

[0047] The receiver is configured to receive broadcast information from a first radio access technology (RAT), the broadcast information including a list of public land mobile networks (PLMNs), the list of PLMNs containing identifiers of PLMNs in a disaster state and provided with disaster roaming services;

[0048] The processor is specifically configured to determine, if the PLMN list includes the identifier of the network, that the network is in a disaster state and the network provides disaster roaming services through the first RAT.

[0049] In one embodiment, the communication device further includes a receiver;

[0050] The receiver is configured to receive first broadcast information from a first radio access technology (RAT), the first broadcast information including an identifier of a first PLMN, used to indicate that the first PLMN is in a disaster state;

[0051] The receiver is also configured to receive second broadcast information from the first RAT, the second broadcast information including the identifier of the second PLMN, for instructing the second PLMN to provide disaster roaming services through the first RAT;

[0052] The processor is specifically configured to determine that the network is in a disaster state and that the network provides disaster roaming service through the first RAT if both the identifier of the first PLMN and the identifier of the second PLMN are identifiers of the network.

[0053] In one embodiment, the processor is further configured to:

[0054] Remove the first RAT from the RAT restriction list.

[0055] In one embodiment, the processor is further configured to:

[0056] Activate the access capability of the first RAT.

[0057] In one embodiment, the processor is further configured to select a combination of the first RAT and the network, and access the network through the first RAT.

[0058] In one embodiment, the communication device further includes a transmitter, and the processor is specifically configured to control the transmitter to initiate a disaster roaming access request for the network through the first RAT according to a disaster roaming wait timer.

[0059] In one embodiment, before the network is in a disaster state, the terminal device accesses the network via a second radio access technology (RAT).

[0060] In one embodiment, the first RAT is a 4G access technology and the second RAT is a 5G access technology.

[0061] A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements a disaster roaming processing method as described above.

[0062] A computer program product comprising a computer program that, when executed by a processor, implements a disaster roaming processing method for any of the above.

[0063] The aforementioned disaster roaming processing method, apparatus, communication equipment, storage medium, and computer program product allow a terminal device to determine that the network is in a disaster state based on broadcast information from a first radio access technology (RAT), and to ignore the limitations of the first RAT after determining that the network is in a disaster state. Using the disaster roaming processing method, apparatus, communication equipment, storage medium, and computer program product provided in this application, after a terminal device determines that the network is in a disaster state based on broadcast information from the first RAT, it can determine that the network provides disaster roaming services through the first RAT, and thus the terminal device can ignore the limitations of the first RAT. After the terminal device ignores the limitations of the first RAT, subsequent terminal devices can access the network through the first RAT to obtain basic communication services. Attached Figure Description

[0064] Figure 1 This is an application environment diagram of a disaster roaming handling method in one embodiment;

[0065] Figure 2 This is a flowchart illustrating a disaster roaming handling method in one embodiment;

[0066] Figure 3 This is a flowchart illustrating step 202 in one embodiment;

[0067] Figure 4 This is a flowchart illustrating step 202 in another embodiment;

[0068] Figure 5 This is a schematic diagram of a disaster roaming handling method in one embodiment;

[0069] Figure 6 This is a structural block diagram of a disaster roaming processing device in one embodiment;

[0070] Figure 7 This is an internal structural diagram of a communication device in one embodiment. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0072] Figure 1 This is a schematic diagram illustrating an application scenario of a disaster roaming processing method provided in an embodiment of this application. For example... Figure 1 As shown, this scenario includes a first user terminal 100, a second user terminal 200, and an access network device 300. Data transmission between the first user terminal 100 and the second user terminal 200 occurs via a network, as does data transmission between the first user terminal 100 and the access network device 300.

[0073] The access network equipment 300 can be a base station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a base station in a 5G network, etc., and is not limited here.

[0074] The first user terminal 100 and the second terminal 200 can be wireless terminals. A wireless terminal can be a device that provides voice and / or other service data connectivity to a user, or a handheld device with wireless connectivity, or other processing device connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) or a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device. They exchange voice and / or data with the radio access network. A wireless terminal can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, access terminal, user terminal, user agent, or user device or user equipment; no specific terminology is used here.

[0075] In traditional technology, terminal devices roam to PLMN-1 (Public Land Mobile Network) via 5G, but cannot access PLMN-1's 4G network. In this case, the 4G RAT (Radio Access Technology) is on the terminal device's RAT restriction list. When a 5G base station fails, since the 4G base station is available, the operator allows the terminal device to temporarily access PLMN-1 via 4G disaster recovery roaming. The terminal device will receive two broadcast messages from the 4G base station: one indicating "PLMN-1 has entered a disaster state," and the other indicating "PLMN-1 provides disaster recovery roaming service." Because the 4G and 5G networks use the same PLMN ID (i.e., PLMN-1), from the terminal device's perspective, these two broadcast messages conflict. Based on these two broadcast messages, the terminal device cannot determine which network (4G or 5G) is faulty, or which provides disaster recovery roaming, and therefore cannot perform network selection and access control for disaster recovery roaming.

[0076] Based on the above-mentioned traditional technology, this application provides a disaster roaming processing method. When a terminal device determines that the network is in a disaster state based on 4G broadcast information, it can determine that the network provides disaster roaming through 4G. As a result, the terminal device can ignore the restrictions on 4G. Subsequently, the terminal device can access the network through 4G to obtain basic communication services.

[0077] It should be noted that the beneficial effects or technical problems solved by the embodiments of this application are not limited to this one, but may also be other implicit or related problems. For details, please refer to the description of the embodiments below.

[0078] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0079] In one embodiment, such as Figure 2 As shown, a method for handling disaster roaming is provided, which can be applied to... Figure 1 Taking terminal device 100 as an example, the explanation includes the following steps 202 to 204, wherein:

[0080] Step 202: Determine that the network is in a disaster state based on the broadcast information of the first radio access technology (RAT).

[0081] Step 204: Ignore the limitations of the first RAT.

[0082] In one exemplary embodiment, before the network is in a disaster state, the terminal device accesses the network via a second radio access technology (RAT). The first RAT is a RAT restricted by the terminal device; for example, the first RAT belongs to the terminal device's RAT restriction list, or the terminal device has its ability to access the first RAT disabled.

[0083] For example, when the second RAT fails, the terminal device will be unable to access the network through the second RAT, and the network will be in a disaster state. If the network is configured to provide disaster roaming service through the first RAT, then when the network is in a disaster state, the first RAT will broadcast disaster-related information. The terminal device can determine that the network is in a disaster state and that the network provides disaster roaming service through the first RAT by observing the broadcast information from the first RAT. Therefore, the terminal device can ignore the limitations of the first RAT.

[0084] In one exemplary embodiment, the first RAT is a 4G access technology, the second RAT is a 5G access technology, and the network is a PLMN.

[0085] In the aforementioned disaster roaming handling method, the terminal device can determine that the network is in a disaster state based on the broadcast information of the first radio access technology (RAT), and after determining that the network is in a disaster state, it can ignore the limitations of the first RAT. Using the disaster roaming handling method provided in this application embodiment, after the terminal device determines that the network is in a disaster state based on the broadcast information of the first RAT, it can determine that the network provides disaster roaming services through the first RAT, and thus the terminal device can ignore the limitations of the first RAT. After the terminal device ignores the limitations of the first RAT, subsequent terminal devices can access the network through the first RAT to obtain basic communication services.

[0086] In one exemplary embodiment, reference is made to Figure 3 As shown, in step 202, determining that the network is in a disaster state based on the broadcast information of the first radio access technology (RAT) may include the following steps 302 to 304, wherein:

[0087] Step 302: Receive broadcast information from the first radio access technology (RAT). The broadcast information includes a list of public land mobile networks (PLMNs), which contains identifiers of PLMNs that are in a disaster state and are provided with disaster roaming services.

[0088] Step 304: If the PLMN list includes the network identifier, determine that the network is in a disaster state and that the network provides disaster roaming services through the first RAT.

[0089] In this embodiment, after the network is in a disaster state, the first RAT can add the network's identifier to the PLMN list and broadcast the PLMN list. The terminal device receives the broadcast information from the first RAT, which contains a PLMN list. The PLMN list contains the identifiers (e.g., PLMN IDs) of some PLMNs that are in a disaster state and are provided with disaster roaming services by the first RAT.

[0090] The terminal device can check whether the PLMN list contains the identifier of the current network. If the PLMN list contains the identifier of the current network, the terminal device can determine that the network is in a disaster state and that the network provides disaster roaming services through the first RAT.

[0091] Once a terminal device determines that the network is in a disaster state and provides disaster roaming service through the first RAT, it can remove the restrictions of the first RAT so that it can subsequently switch to the first RAT to access the network in order to maintain the continuity of communication.

[0092] In one exemplary embodiment, reference is made to Figure 4As shown, in step 202, determining that the network is in a disaster state based on the broadcast information of the first radio access technology (RAT) may include the following steps 402 to 406:

[0093] Step 402: Receive first broadcast information from the first radio access technology (RAT), the first broadcast information including the identifier of the first PLMN, used to indicate that the first PLMN is in a disaster state;

[0094] Step 404: Receive second broadcast information from the first RAT. The second broadcast information includes the identifier of the second PLMN, which is used to instruct the second PLMN to provide disaster roaming services through the first RAT.

[0095] Step 406: If both the identifier of the first PLMN and the identifier of the second PLMN are network identifiers, then it is determined that the network is in a disaster state and the network provides disaster roaming service through the first RAT.

[0096] In this embodiment of the application, after the network is in a disaster state, the terminal device receives broadcast information from the first RAT, including first broadcast information and second broadcast information. The first broadcast information includes the identifier of the first PLMN, indicating that the first PLMN is in a disaster state, and the second broadcast information includes the identifier of the second PLMN, instructing the second PLMN to provide disaster roaming service through the first RAT. The identifiers of the first PLMN and the second PLMN may be the same or different.

[0097] It should be noted that the embodiments of this application do not specifically limit the execution order of steps 402 and 404. Step 402 can be executed first and then step 404 can be executed, or step 404 can be executed first and then step 402 can be executed, or steps 402 and 404 can be executed simultaneously.

[0098] When both the first and second broadcast messages received carry the identifier of the current network, that is, when both the identifier of the first PLMN and the identifier of the second PLMN are the identifier of the current network (assuming the identifier of the current network is PLMN-1, and both the identifier of the first PLMN and the identifier of the second PLMN are PLMN-1), it can be determined that the current network is in a disaster state and the network provides disaster roaming service through the first RAT.

[0099] Once a terminal device determines that the network is in a disaster state and provides disaster roaming service through the first RAT, it can remove the restrictions of the first RAT so that it can subsequently switch to the first RAT to access the network in order to maintain the continuity of communication.

[0100] In one exemplary embodiment, ignoring the limitations of the first RAT may include:

[0101] Remove the first RAT from the RAT restriction list;

[0102] Alternatively, activate the access capability of the first RAT.

[0103] In this embodiment, the terminal device typically maintains a RAT restriction list, recording the reasons why certain RATs are not recommended or prohibited from use under normal circumstances, such as poor performance or limited coverage. The first RAT is included in the terminal device's RAT restriction list. When it is determined that the network is in a disaster state and the network provides disaster roaming services through the first RAT, the terminal device can remove the first RAT from the RAT restriction list to remove the restriction on the first RAT. In this way, the first RAT is no longer considered a restricted access technology, and the terminal device can freely choose to use it.

[0104] Alternatively, under normal circumstances, terminal devices may disable access functions of certain RATs to optimize performance or conserve resources. A terminal device may disable its ability to access the first RAT, but when a disaster is determined to be affecting the network and the network provides disaster roaming services through the first RAT, the terminal device can activate the first RAT's access capabilities. This means the terminal device enables the first RAT's access function, allowing it to connect to the network.

[0105] In one exemplary embodiment, the above method may further include:

[0106] Select the combination of the first RAT and the network, and access the network through the first RAT.

[0107] In this embodiment, assuming the terminal device selects a combined access network of the second RAT and the network before a disaster, taking RAT1 as the first RAT, RAT2 as the second RAT, and PLMN-1 as the network, the terminal device selects the combined access network of RAT2 + PLMN-1 before the disaster. When the network is in a disaster state, if the terminal device determines that the network provides disaster roaming service through RAT1, the terminal device can then select the combined access network of RAT1 + PLMN-1.

[0108] In one exemplary embodiment, accessing the network via a first RAT may include:

[0109] Based on the disaster roaming wait timer, initiate a disaster roaming access request for the network through the first RAT.

[0110] In this embodiment, the disaster roaming wait timer is a timer used to control when a terminal device initiates a disaster roaming access request after detecting a disaster. The purpose of this timer is to avoid frequent requests within a short period, thereby reducing network load and ensuring the validity of the request. A disaster roaming access request is a request sent by the terminal device to the network to request the use of disaster roaming services in order to maintain communication connectivity in the event of a disaster.

[0111] When a terminal device receives broadcast information from the first RAT (Range Access Terminal), determines that the network is in a disaster state, and confirms that the network provides disaster roaming services through the first RAT, it starts a disaster roaming wait timer. This causes the terminal device to wait for a period of time after determining that the network is in a disaster state, instead of immediately initiating an access request. When the disaster roaming wait timer expires, the terminal device considers that it has waited enough time and can initiate a disaster roaming access request.

[0112] In a disaster situation, the network may already be under significant pressure, and frequent access requests could impact the service quality for other users. By using a disaster roaming wait timer, we can prevent terminal devices from immediately initiating access requests after detecting a disaster, thereby reducing the network load. The duration of the disaster roaming timer can be set according to the specific network conditions and needs. For example, it can be set to a few seconds, a few minutes, or longer; this embodiment does not impose a specific limitation on this.

[0113] For example, a disaster roaming access request typically includes the terminal device's identification information and current location information to help the network perform authentication and provide roaming services. Upon receiving the disaster roaming access request, the network will perform corresponding processing, such as verifying the terminal device's identity and allocating resources, to ensure that the terminal device can successfully access the network and use the disaster roaming service.

[0114] To enable those skilled in the art to better understand the embodiments of this application, the embodiments of this application are described below through specific examples.

[0115] In this example, under normal circumstances, the UE (User Equipment) accesses the visited network via RAT-1 (RAT-1+PLMN-1) within the roaming area. RAT-2 is a RAT restriction in the user's subscription information, meaning that the UE cannot access the visited network via RAT-2 (RAT-2+PLMN-1 is prohibited).

[0116] Under normal circumstances, PLMN-1 provides RAT-1 roaming service to the UE; when RAT-1 fails, the UE is allowed to access RAT-2 for disaster roaming.

[0117] For example, refer to Figure 5As shown, when selecting a PLMN, the UE chooses RAT-1+PLMN-1 and initiates a registration request to access the network. RAT-2 is unavailable; possible ways to disable it include: RAT-2 being on the RAT restriction list, or the UE disabling RAT-2 access capabilities. If RAT-1 fails, PLMN-1 enters a disaster state. At this time, other available RATs / PLMNs provide disaster roaming services, allowing affected UEs to temporarily access the network.

[0118] RAT-2+PLMN-1 is configured to provide disaster roaming services. RAT-2 broadcasts the following: PLMN-1 has entered a disaster state and PLMN-1 provides disaster roaming services. RAT-2 can also broadcast the above two pieces of information by adding PLMN-1 to a list of PLMNs that are in a disaster state and are providing disaster roaming services.

[0119] The UE determines that PLMN-1 has entered a disaster state based on the content broadcast in RAT-2. If the UE supports disaster roaming, the UE selects a PLMN for disaster roaming. The UE determines that RAT-2+PLMN-1 provides disaster roaming service based on the content broadcast in RAT-2, and confirms that the two pieces of information are associated with the same PLMN.

[0120] The possible ways to remove restrictions on RAT-2 for a UE are to remove RAT-2 from the RAT restriction list or to activate RAT-2 access capability.

[0121] The UE selects RAT-2+PLMN-1 to initiate a disaster roaming registration request to access the network.

[0122] In the disaster roaming processing method provided in this application embodiment, the UE confirms that the PLMN is in a disaster state and that the PLMN provides disaster roaming services based on broadcast information. The UE confirms that the two pieces of information are associated with the same PLMN ID. The UE retains the PLMN as an available PLMN. The UE removes the restrictions on the RAT broadcasting the information; possible methods include removing the RAT from the RAT restriction list and activating the access capability of the RAT. The UE initiates a disaster roaming access request to the PLMN through the RAT broadcasting the information. This application embodiment does not require modification of the base station broadcast content, is simple to implement, has high development efficiency, and solves the problem of how the UE should handle initiating a disaster roaming registration request after receiving two conflicting pieces of information from a broadcast, clarifying the UE's processing logic. In areas supporting inter-network roaming, if a 5G network failure occurs, a UE camped on the failed 5G network can access the same operator's 4G network to regain service through the disaster roaming processing method provided in this application embodiment.

[0123] It should be understood that, although Figures 1-5The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figures 1-5 At least some of the steps in the process may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the steps or stages in other steps.

[0124] In one embodiment, such as Figure 6 As shown, a disaster roaming processing apparatus is provided, comprising: a determination module 602 and a processing module 604, wherein:

[0125] The determination module 602 is used to determine that the network is in a disaster state based on the broadcast information of the first radio access technology (RAT).

[0126] Processing module 604 is used to ignore the limitations of the first RAT.

[0127] The aforementioned disaster roaming processing apparatus allows a terminal device to determine that the network is in a disaster state based on broadcast information from a first radio access technology (RAT), and to ignore the limitations of the first RAT after determining that the network is in a disaster state. Using the disaster roaming processing apparatus provided in this application, after a terminal device determines that the network is in a disaster state based on broadcast information from the first RAT, it can determine that the network provides disaster roaming services through the first RAT, and thus the terminal device can ignore the limitations of the first RAT. After the terminal device ignores the limitations of the first RAT, subsequent terminal devices can access the network through the first RAT to obtain basic communication services.

[0128] In one embodiment, the determining module is specifically used for:

[0129] Receive broadcast information from a first radio access technology (RAT), the broadcast information including a list of public land mobile networks (PLMNs), the list of PLMNs containing identifiers of PLMNs that are in a state of disaster and are provided with disaster roaming services;

[0130] If the PLMN list includes the identifier of the network, it is determined that the network is in a disaster state and the network provides disaster roaming service through the first RAT.

[0131] In one embodiment, the determining module is specifically used for:

[0132] Receive first broadcast information from a first radio access technology (RAT), the first broadcast information including an identifier of a first PLMN, used to indicate that the first PLMN is in a disaster state;

[0133] Receive a second broadcast message from the first RAT, the second broadcast message including the identifier of the second PLMN, for instructing the second PLMN to provide disaster roaming services through the first RAT;

[0134] If both the identifier of the first PLMN and the identifier of the second PLMN are identifiers of the network, then the network is determined to be in a disaster state and the network provides disaster roaming service through the first RAT.

[0135] In one embodiment, the processing module is specifically used for:

[0136] Remove the first RAT from the RAT restriction list.

[0137] In one embodiment, the processing module is specifically used for:

[0138] Activate the access capability of the first RAT.

[0139] In one embodiment, the device further includes:

[0140] An access module is used to select a combination of the first RAT and the network, and to access the network through the first RAT.

[0141] In one embodiment, the access module is specifically used for:

[0142] Based on the disaster roaming wait timer, a disaster roaming access request for the network is initiated through the first RAT.

[0143] In one embodiment, before the network is in a disaster state, the terminal device accesses the network via a second radio access technology (RAT).

[0144] In one embodiment, the first RAT is a 4G access technology and the second RAT is a 5G access technology.

[0145] Specific limitations regarding the disaster roaming processing device can be found in the above description of the disaster roaming processing method, and will not be repeated here. Each module in the aforementioned disaster roaming processing device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0146] In one embodiment, a communication device is provided, see [link to previous document]. Figure 7 . Figure 7 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application. Figure 7 The terminal device 700 shown includes at least one processor 701, a memory 702, at least one network interface 704, and a user interface 703. The various components in the terminal device 700 are coupled together via a bus system 705. It is understood that the bus system 705 is used to implement communication between these components. In addition to a data bus, the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in… Figure 7 Various buses are designated as bus system 705. Additionally, embodiments of this application also include a transceiver 706, which may consist of multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

[0147] The user interface 703 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0148] It is understood that the memory 702 in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can 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. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 702 of the systems and methods described in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0149] In some implementations, memory 702 stores elements such as executable modules or data structures, or subsets thereof, or extended sets thereof: operating system 7021 and application program 7022.

[0150] The operating system 7021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 7022 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this application embodiment can be included in the application program 7022.

[0151] In this embodiment of the application, by calling the program or instructions stored in memory 702, specifically the program or instructions stored in application program 7022, the processor is used to determine that the network is in a disaster state based on the broadcast information of the first radio access technology (RAT); and ignores the limitations of the first RAT.

[0152] It is understood that the embodiments described in this application can be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this application, or combinations thereof.

[0153] For software implementation, the technology described in the embodiments of this application can be implemented by modules (e.g., procedures, functions, etc.) that perform the functions described in the embodiments of this application. The software code can be stored in memory and executed by processor 701. The memory can be implemented in processor 701 or external to processor 701.

[0154] In one embodiment, the communication device further includes a receiver;

[0155] The receiver is configured to receive broadcast information from a first radio access technology (RAT), the broadcast information including a list of public land mobile networks (PLMNs), the list of PLMNs containing identifiers of PLMNs in a disaster state and provided with disaster roaming services;

[0156] The processor is specifically configured to determine, if the PLMN list includes the identifier of the network, that the network is in a disaster state and the network provides disaster roaming services through the first RAT.

[0157] In one embodiment, the communication device further includes a receiver;

[0158] The receiver is configured to receive first broadcast information from a first radio access technology (RAT), the first broadcast information including an identifier of a first PLMN, used to indicate that the first PLMN is in a disaster state;

[0159] The receiver is also configured to receive second broadcast information from the first RAT, the second broadcast information including the identifier of the second PLMN, for instructing the second PLMN to provide disaster roaming services through the first RAT;

[0160] The processor is specifically configured to determine that the network is in a disaster state and that the network provides disaster roaming service through the first RAT if both the identifier of the first PLMN and the identifier of the second PLMN are identifiers of the network.

[0161] In one embodiment, the processor is further configured to:

[0162] Remove the first RAT from the RAT restriction list.

[0163] In one embodiment, the processor is further configured to:

[0164] Activate the access capability of the first RAT.

[0165] In one embodiment, the processor is further configured to select a combination of the first RAT and the network, and access the network through the first RAT.

[0166] In one embodiment, the communication device further includes a transmitter, and the processor is specifically configured to control the transmitter to initiate a disaster roaming access request for the network through the first RAT according to a disaster roaming wait timer.

[0167] In one embodiment, before the network is in a disaster state, the terminal device accesses the network via a second radio access technology (RAT).

[0168] In one embodiment, the first RAT is a 4G access technology and the second RAT is a 5G access technology.

[0169] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the disaster roaming processing method of any of the above embodiments.

[0170] This application also provides a computer program product containing instructions that, when run on a computer, cause the computer to execute a disaster roaming processing method as described in any of the above embodiments.

[0171] Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered equivalent solutions of the present invention. Moreover, the steps of performing the above-described series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other.

[0172] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0173] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0174] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for handling disaster roaming, characterized in that, Applied to a terminal device, the method includes: Based on the broadcast information from the first radio access technology (RAT), it was determined that the network was in a state of disaster. Ignore the limitations of the first RAT.

2. The method according to claim 1, characterized in that, The determination that the network is in a disaster state based on broadcast information from the first radio access technology (RAT) includes: Receive broadcast information from a first radio access technology (RAT), the broadcast information including a list of public land mobile networks (PLMNs), the list of PLMNs containing identifiers of PLMNs that are in a state of disaster and are provided with disaster roaming services; If the PLMN list includes the identifier of the network, it is determined that the network is in a disaster state and the network provides disaster roaming service through the first RAT.

3. The method according to claim 1, characterized in that, The determination that the network is in a disaster state based on broadcast information from the first radio access technology (RAT) includes: Receive first broadcast information from a first radio access technology (RAT), the first broadcast information including an identifier of a first PLMN, used to indicate that the first PLMN is in a disaster state; Receive a second broadcast message from the first RAT, the second broadcast message including the identifier of the second PLMN, for instructing the second PLMN to provide disaster roaming services through the first RAT; If both the identifier of the first PLMN and the identifier of the second PLMN are identifiers of the network, then the network is determined to be in a disaster state and the network provides disaster roaming service through the first RAT.

4. The method according to any one of claims 1 to 3, characterized in that, The limitation of ignoring the first RAT includes: Remove the first RAT from the RAT restriction list.

5. The method according to any one of claims 1 to 3, characterized in that, The limitation of ignoring the first RAT includes: Activate the access capability of the first RAT.

6. The method according to any one of claims 1 to 3, characterized in that, The method further includes: Select a combination of the first RAT and the network, and access the network through the first RAT.

7. The method according to claim 6, characterized in that, Accessing the network via the first RAT includes: Based on the disaster roaming wait timer, a disaster roaming access request for the network is initiated through the first RAT.

8. The method according to any one of claims 1 to 3, characterized in that, Before the network was in a disaster state, the terminal device accessed the network via a second radio access technology (RAT).

9. The method according to claim 8, characterized in that, The first RAT uses 4G access technology, and the second RAT uses 5G access technology.

10. A disaster roaming processing device, characterized in that, The device includes: The determination module is used to determine whether the network is in a disaster state based on the broadcast information of the first radio access technology (RAT). A processing module is used to ignore the limitations of the first RAT.

11. A communication device, characterized in that, include: processor; The processor is configured to determine that the network is in a disaster state based on broadcast information from the first radio access technology (RAT). Ignore the limitations of the first RAT.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9.

13. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9.

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