Network disaster roaming method and device and communication equipment

Abstract

The invention relates to a network disaster roaming method and device, communication equipment, a storage medium and a computer program product. The method comprises: if a first PLMN has a fault, broadcasting a first prompt message through the shared base station in a first broadcast channel corresponding to the first PLMN, the first prompt message being used for instructing user equipment to perform de-registration; and in a second broadcast channel corresponding to a second PLMN, a second prompt message is broadcasted through the shared base station, and the second prompt message is used for indicating disaster roaming access of user equipment corresponding to the first PLMN. By adopting the method, the user equipment accessed to the first PLMN can be prompted to roam in time when the core network of the first PLMN fails, so that the user equipment can be ensured to know the timeliness of the failure of the accessed core network, and the communication quality of the user equipment and the core network is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a network disaster roaming method, apparatus, communication equipment, storage medium and computer program product. Background Art

[0002] With the continuous development of communication technology, the application scope of the core network in communication technology is becoming more and more extensive. In the 5G system, network elements in the core network may fail due to various objective reasons. In this case, the core network cannot provide network services to user equipment, resulting in poor communication quality. Summary of the invention

[0003] The embodiments of the present application provide a network disaster roaming method, apparatus, communication equipment, storage medium and computer program product, which can ensure that the user equipment is informed of the access core network failure in a timely manner and improve the communication quality between the user equipment and the core network.

[0004] A network disaster roaming method, applied to a shared base station, comprising:

[0005] If the first PLMN fails, broadcasting a first prompt message through the shared base station on a first broadcast channel corresponding to the first PLMN, wherein the first prompt message is used to instruct the user equipment to deregister;

[0006] A second prompt message is broadcasted through the shared base station on a second broadcast channel corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

[0007] In one embodiment, the method further comprises:

[0008] If, based on the target heartbeat mechanism, no communication message sent by the first PLMN is received within a preset time period, it is determined that the first PLMN is faulty.

[0009] In one embodiment, the method further comprises:

[0010] If a message indicating that the first PLMN is in a disaster state is received from the second PLMN, it is determined that the first PLMN is faulty.

[0011] In one embodiment, the method further comprises:

[0012] If a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received, it is determined that the first PLMN is faulty.

[0013] In one embodiment, broadcasting the first prompt message through the shared base station includes:

[0014] A deregistration indication message is broadcasted through the shared base station.

[0015] In one embodiment, broadcasting the first prompt message through the shared base station includes:

[0016] A message that the first PLMN is in a disaster state is broadcasted through the shared base station.

[0017] In one embodiment, broadcasting the second prompt message through the shared base station includes:

[0018] A message allowing disaster roaming access of user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are broadcasted through the shared base station.

[0019] In one of the embodiments, broadcasting the second prompt message through the shared base station on the second broadcast channel corresponding to the second PLMN includes:

[0020] A message allowing disaster roaming access of user equipment corresponding to the first PLMN is broadcasted through the shared base station.

[0021] A network disaster roaming method, applied to a base station, comprising:

[0022] If the first PLMN fails, broadcasting a first prompt message through a first base station corresponding to the first PLMN on a first broadcast channel corresponding to the first PLMN, wherein the first prompt message is used to instruct the user equipment to deregister;

[0023] A second prompt message is broadcasted on a second broadcast channel corresponding to the second PLMN through a second base station corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

[0024] In one embodiment, the method further comprises:

[0025] If, based on the target heartbeat mechanism, no communication message sent by the first PLMN is received within a preset time period, it is determined that the first PLMN is faulty.

[0026] In one embodiment, the method further comprises:

[0027] If a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received, it is determined that the first PLMN is faulty.

[0028] In one of the embodiments, broadcasting the first prompt message through the first base station corresponding to the first PLMN includes:

[0029] A deregistration indication message is broadcasted through the first base station corresponding to the first PLMN.

[0030] In one of the embodiments, broadcasting the first prompt message through the first base station corresponding to the first PLMN includes:

[0031] A message that the first PLMN is in a disaster state is broadcasted through the first base station corresponding to the first PLMN.

[0032] In one of the embodiments, broadcasting the second prompt message through the second base station corresponding to the second PLMN includes:

[0033] A message allowing disaster roaming access for user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are broadcasted through the second base station corresponding to the second PLMN.

[0034] In one of the embodiments, broadcasting the second prompt message through the second base station corresponding to the second PLMN includes:

[0035] A message allowing disaster roaming access of user equipment corresponding to the first PLMN is broadcasted through the second base station corresponding to the second PLMN.

[0036] A network disaster roaming method, applied to a user equipment, comprising:

[0037] receiving a first prompt message through a first broadcast channel corresponding to the first PLMN, where the first prompt message is used to instruct the user equipment to deregister;

[0038] deregistering from the first PLMN, and receiving a second prompt message through a second broadcast channel corresponding to the second PLMN, wherein the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN;

[0039] Disaster roaming registration processing is performed in the second PLMN.

[0040] In one of the embodiments, the receiving the first prompt message through the first broadcast channel corresponding to the first PLMN includes:

[0041] A deregistration indication message is received through a first broadcast channel corresponding to the first PLMN.

[0042] In one of the embodiments, the receiving the first prompt message through the first broadcast channel corresponding to the first PLMN includes:

[0043] A message that the first PLMN is in a disaster state is received through a first broadcast channel corresponding to the first PLMN.

[0044] In one of the embodiments, the receiving the second prompt message through the second broadcast channel corresponding to the second PLMN includes:

[0045] A message allowing disaster roaming access of a user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are received through a second broadcast channel corresponding to the second PLMN.

[0046] In one of the embodiments, the receiving the second prompt message through the second broadcast channel corresponding to the second PLMN includes:

[0047] A message allowing disaster roaming access of a user equipment corresponding to the first PLMN is received through a second broadcast channel corresponding to the second PLMN.

[0048] In one embodiment, the performing disaster roaming registration processing in the second PLMN includes:

[0049] Sending a disaster roaming registration request to the second PLMN;

[0050] Receive a registration acceptance message returned by the second PLMN.

[0051] A network disaster roaming device, applied to a shared base station, comprising:

[0052] A first broadcast module, configured to broadcast a first prompt message through the shared base station on a first broadcast channel corresponding to the first PLMN if the first PLMN fails, wherein the first prompt message is used to instruct the user equipment to deregister;

[0053] The second broadcast module is used to broadcast a second prompt message through the shared base station on a second broadcast channel corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of the user equipment corresponding to the first PLMN.

[0054] In one embodiment, the device further comprises:

[0055] The first determining module is configured to determine that the first PLMN is faulty if no communication message sent by the first PLMN is received within a preset time period based on a target heartbeat mechanism.

[0056] In one embodiment, the device further comprises:

[0057] The second determining module is configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state is received from the second PLMN.

[0058] In one embodiment, the device further comprises:

[0059] The third determining module is configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state, sent by the first PLMN, is received.

[0060] In one embodiment, the first broadcast module is specifically used for:

[0061] A deregistration indication message is broadcasted through the shared base station.

[0062] In one embodiment, the first broadcast module is specifically used for:

[0063] A message that the first PLMN is in a disaster state is broadcasted through the shared base station.

[0064] In one embodiment, the second broadcast module is specifically used to:

[0065] A message allowing disaster roaming access of user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are broadcasted through the shared base station.

[0066] In one embodiment, the second broadcast module is specifically used to:

[0067] A message allowing disaster roaming access of user equipment corresponding to the first PLMN is broadcasted through the shared base station.

[0068] A network disaster roaming device, applied to a base station, comprising:

[0069] A third broadcast module, configured to broadcast a first prompt message through a first base station corresponding to the first PLMN on a first broadcast channel corresponding to the first PLMN if the first PLMN fails, wherein the first prompt message is used to instruct the user equipment to deregister;

[0070] The fourth broadcast module is used to broadcast a second prompt message on a second broadcast channel corresponding to the second PLMN through a second base station corresponding to the second PLMN, wherein the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

[0071] In one embodiment, the device further comprises:

[0072] The fourth determination module is configured to determine that the first PLMN is faulty if no communication message sent by the first PLMN is received within a preset time period based on the target heartbeat mechanism.

[0073] In one embodiment, the device further comprises:

[0074] The fifth determining module is configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state, sent by the first PLMN, is received.

[0075] In one embodiment, the third broadcast module is specifically configured to broadcast a deregistration indication message through a first base station corresponding to the first PLMN.

[0076] In one embodiment, the third broadcast module is specifically configured to broadcast a message that the first PLMN is in a disaster state through a first base station corresponding to the first PLMN.

[0077] In one embodiment, the fourth broadcast module is specifically used to broadcast, through the second base station corresponding to the second PLMN, a message that allows disaster roaming access of the user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state.

[0078] In one embodiment, the fourth broadcast module is specifically configured to: broadcast, through a second base station corresponding to the second PLMN, a message that allows disaster roaming access to a user equipment corresponding to the first PLMN.

[0079] A network disaster roaming device, applied to user equipment, comprising:

[0080] A first receiving module, configured to receive a first prompt message through a first broadcast channel corresponding to a first PLMN, wherein the first prompt message is used to instruct the user equipment to deregister;

[0081] A second receiving module, configured to deregister from the first PLMN and receive a second prompt message through a second broadcast channel corresponding to the second PLMN, wherein the second prompt message is used to instruct a user equipment corresponding to the first PLMN to perform disaster roaming;

[0082] The roaming module is used to perform disaster roaming registration processing in the second PLMN.

[0083] In one of the embodiments, the first receiving module is specifically configured to: receive a deregistration indication message through a first broadcast channel corresponding to the first PLMN.

[0084] In one of the embodiments, the first receiving module is specifically used to receive a message indicating that the first PLMN is in a disaster state through a first broadcast channel corresponding to the first PLMN.

[0085] In one of the embodiments, the second receiving module is specifically used to receive, through a second broadcast channel corresponding to the second PLMN, a message allowing disaster roaming access for a user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state.

[0086] In one of the embodiments, the second receiving module is specifically configured to: receive, through a second broadcast channel corresponding to the second PLMN, a message allowing disaster roaming access for a user equipment corresponding to the first PLMN.

[0087] In one of the embodiments, the roaming module is specifically used to: send a disaster roaming registration request to the second PLMN;

[0088] Receive a registration acceptance message returned by the second PLMN.

[0089] A communication device, comprising: a transmitter and a processor, wherein:

[0090] The processor is configured to broadcast a first prompt message through the transmitter and the shared base station on a first broadcast channel corresponding to the first PLMN if the first PLMN fails, wherein the first prompt message is used to instruct the user equipment to deregister;

[0091] The processor is further configured to broadcast a second prompt message on a second broadcast channel corresponding to the second PLMN through the transmitter and the shared base station, wherein the second prompt message is configured to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

[0092] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0093] If the first PLMN fails, broadcasting a first prompt message through the shared base station on a first broadcast channel corresponding to the first PLMN, wherein the first prompt message is used to instruct the user equipment to deregister;

[0094] A second prompt message is broadcasted through the shared base station on a second broadcast channel corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

[0095] A computer program product includes a computer program, wherein when the computer program is executed by a processor, the network disaster roaming method provided by an embodiment of the present application is implemented, and the method may be:

[0096] If the first PLMN fails, broadcasting a first prompt message through the shared base station on a first broadcast channel corresponding to the first PLMN, wherein the first prompt message is used to instruct the user equipment to deregister;

[0097] A second prompt message is broadcasted through the shared base station on a second broadcast channel corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

[0098] The above-mentioned network disaster roaming method, apparatus, communication equipment, storage medium and computer program product, wherein the method includes: if the first PLMN fails, broadcasting a first prompt message through the shared base station on the first broadcast channel corresponding to the first PLMN, the first prompt message is used to instruct the user equipment to deregister; broadcasting a second prompt message through the shared base station on the second broadcast channel corresponding to the second PLMN, the second prompt message is used to instruct the user equipment corresponding to the first PLMN to access disaster roaming. By adopting this method, the first prompt information can be broadcast to the user equipment in time when the first core network fails, prompting the user equipment corresponding to the first PLMN to access disaster roaming, ensuring the timeliness of the user equipment's perception of the accessed core network failure, and thus improving the communication quality between the user equipment and the PLMN. BRIEF DESCRIPTION OF THE DRAWINGS

[0099] Figure 1 A diagram of an application environment of a network disaster roaming method in an embodiment;

[0100] Figure 2 A schematic diagram of a flow chart of a network disaster roaming method in one embodiment;

[0101] Figure 3 A flowchart of receiving a roaming registration step in one embodiment;

[0102] Figure 4 is a flow chart of a network disaster roaming method applied to a base station in another embodiment;

[0103] Figure 5 is a flow chart of a network disaster roaming method applied to a shared base station in another embodiment;

[0104] Figure 6 A signaling interaction flow chart of a network disaster roaming method;

[0105] Figure 7 A signaling interaction flow chart of a network disaster roaming method;

[0106] Figure 8 is a structural block diagram of a network disaster roaming device in an embodiment;

[0107] Fig. 9 is a structural block diagram of a network disaster roaming device in an embodiment;

[0108] Fig.10is a structural block diagram of a network disaster roaming device in an embodiment;

[0109] Fig.11 FIG. 4 is a diagram showing the internal structure of a communication device in one embodiment. DETAILED DESCRIPTION

[0110] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0111] Figure 1 A schematic diagram of an application scenario of a network disaster roaming method provided in an embodiment of the present application. Figure 1 As shown, the user terminal 100 and the access network device 200 in this scenario. The user terminal 100 and the access network device 200 perform data transmission via the network.

[0112] Among them, the access network device 200 can be a base station (Base Transceiver Station, BTS) in Global System of Mobilecommunication (GSM) or Code Division Multiple Access (CDMA), or a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a base station in a 5G network, or a shared base station in a 5G network, etc., which is not limited here.

[0113] The user terminal 100 may be a wireless terminal, which may be a device that provides voice and / or other service data connectivity to a user, or a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. The wireless terminal may communicate with one or more core networks via a radio access network (Radio Access Network, referred to as RAN). The wireless terminal may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and / or data with a radio access network. The wireless terminal may also be referred to as a system, a subscriber unit (Subscriber Unit), a subscriber station (Subscriber Station), a mobile station (Mobile Station), a mobile station (Mobile), a remote station (Remote Station), a remote terminal (Remote Terminal), an access terminal (Access Terminal), a user terminal (User Terminal), a user agent (User Agent), a user device (User Device or User Equipment), which is not limited here.

[0114] In traditional technologies, such as in 5G systems, network elements in the core network may shut down abnormally due to various reasons, resulting in the network being unable to provide services to users. Since the core network serves a large number of users and has a wide coverage area, the impact of core network failures is extremely large. When the operator's core network fails and cannot provide services, the connected terminals can still receive the wireless signals sent by the core network, and the network failure cannot be discovered in time, resulting in a long service interruption.

[0115] Based on the above-mentioned traditional technology, the network disaster roaming method provided in the embodiment of the present application can receive a message from the first broadcast channel of the first PLMN, deregister from the first PLMN, receive a "roaming allowed" message from the second broadcast channel of the second PLMN, send a registration request message to the second PLMN, and receive a registration acceptance message sent by the second PLMN when the core network failure occurs in the first PLMN to which the terminal is currently connected and cannot provide communication services. By deregistering in the first PLMN in a timely manner and performing disaster roaming in the second PLMN, the impact of service interruption caused by core network failure can be minimized and communication quality can be improved.

[0116] It should be noted that the beneficial effects brought about by the embodiments of the present application or the technical problems solved are not limited to this one, but may also include other implicit or related problems. For details, please refer to the description of the following embodiments.

[0117] Before introducing the specific embodiments of the present invention, the professional terms involved in the present invention are explained first:

[0118] Public Land Mobile Network, HPLMN.

[0119] Home Public Land Mobile Network, HPLMN;

[0120] Visited Public Land Mobile Network, VPLMN;

[0121] CN and BS together constitute PLMN.

[0122] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0123] In one embodiment, Figure 2 As shown, a network disaster roaming method is provided, and the method is applied to Figure 1 The user equipment in FIG. 1 is taken as an example to illustrate, including the following steps:

[0124] Step 202: Receive a first prompt message through a first broadcast channel corresponding to a first PLMN.

[0125] The first prompt message is used to instruct the user equipment to deregister, and the user equipment is a user equipment that receives the first prompt message, for example, a user equipment that has completed registration on the first PLMN, or a user equipment that uses the network service of the first PLMN; the first broadcast channel is a communication channel broadcast by the first base station. The first PLMN network may include a first core network and a first base station.

[0126] Specifically, if the base station determines that the first PLMN is in a disaster state, the base station can broadcast a first prompt message on the first broadcast channel corresponding to the first PLMN; the user equipment that has completed registration on the first PLMN can receive the first prompt message broadcast by the base station based on the first broadcast channel; after receiving the first prompt message, the user equipment can determine that the first PLMN currently accessed by the user equipment is in a disaster state.

[0127] In one example, the first PLMN being in a disaster state means that the first PLMN is in a fault state, that is, the first PLMN cannot provide network services for user equipment registered on the first PLMN.

[0128] Step 204: deregister from the first PLMN, and receive a second prompt message through a second broadcast channel corresponding to the second PLMN.

[0129] The second prompt message is used to instruct the user equipment corresponding to the first PLMN to perform disaster roaming.

[0130] Specifically, after receiving the first prompt message broadcast by the base station, the user equipment can perform deregistration processing on the first PLMN, that is, deregister the user equipment on the first PLMN, separate the user equipment from the first PLMN, and release network session resources. After the user equipment is deregistered from the first PLMN, it can receive communication messages sent by other broadcast channels. In one example, after the user equipment is deregistered from the first PLMN, it can receive a second prompt message broadcast by the second base station through a second broadcast channel.

[0131] Step 206: Perform disaster roaming registration processing in the second PLMN.

[0132] Specifically, after receiving the second prompt message through the second broadcast channel, the user equipment may perform disaster roaming registration processing in the second PLMN. For example, the user equipment may register in the second PLMN.

[0133] In the above network disaster roaming method, a first prompt message broadcasted by a base station is received through a first broadcast channel, and the first prompt message is used to instruct the user equipment to deregister; deregister from a first PLMN corresponding to the base station, and a second prompt message is received through a second broadcast channel corresponding to a second PLMN, and the second prompt message is used to instruct the user equipment corresponding to the first PLMN to perform disaster roaming; and disaster roaming registration processing is performed in the second PLMN corresponding to the base station. By adopting this method, when the first core network fails, the user equipment accessing the first core network can be promptly prompted to roam, which can ensure that the user equipment is informed of the failure of the access core network in a timely manner, and improve the communication quality of the user equipment.

[0134] In one embodiment, in step 202, a specific implementation of receiving the first prompt message through the first broadcast channel corresponding to the first PLMN includes:

[0135] A deregistration indication message is received through a first broadcast channel corresponding to the first PLMN.

[0136] Specifically, the user equipment may receive a deregistration indication message broadcast by the base station through a first broadcast channel corresponding to the first PLMN, and the user equipment may deregister from the first PLMN based on the received deregistration indication message broadcast by the base station.

[0137] In this embodiment, deregistration processing is performed through the received deregistration indication message, so that the session resources can be released in a timely manner.

[0138] In one embodiment, the specific implementation of step 202, receiving the first prompt message through the first broadcast channel corresponding to the first PLMN is:

[0139] A message that the first PLMN is in a disaster state is received through a first broadcast channel corresponding to the first PLMN.

[0140] Specifically, the user equipment can receive a broadcast message in the first broadcast channel corresponding to the first PLMN. For example, the user equipment can receive a message broadcasted by the base station that the first PLMN is in a disaster state through the first broadcast channel corresponding to the first PLMN. After receiving the message that the first PLMN is in a disaster state, the user equipment can determine that the first PLMN is currently in a disaster state. That is, after receiving the message that the first PLMN is in a disaster state through the first broadcast channel corresponding to the first PLMN, the user equipment can determine that the current first PLMN has a fault. In one example, the failure of the first PLMN may be caused by a failure of the first core network.

[0141] In an example, if the user equipment receives a message indicating that the first PLMN is in a disaster state, the user equipment may deregister from the first PLMN.

[0142] In this embodiment, by receiving the message that the first PLMN is in a disaster state and performing deregistration processing from the first PLMN, the session resources can be released in a timely manner.

[0143] In one embodiment, the specific implementation of step 204, receiving the second prompt message through the second broadcast channel corresponding to the second PLMN is:

[0144] A message allowing disaster roaming access of a user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are received through a second broadcast channel corresponding to the second PLMN.

[0145] Specifically, after the user equipment deregisters from the first PLMN, it can receive a broadcast message in the second broadcast channel corresponding to the second PLMN. The user equipment can receive a message broadcast by the base station through the second broadcast channel corresponding to the second PLMN, for example, after the base station determines that the first PLMN is in a disaster state, it can broadcast a message allowing the user equipment corresponding to the first PLMN to access disaster roaming and a message that the first PLMN is in a disaster state.

[0146] The message allowing disaster roaming access of the user equipment corresponding to the first PLMN indicates that when the second PLMN determines that the first PLMN is in a disaster state, the second PLMN can provide disaster roaming service functions for the user equipment that has lost network services in the first PLMN, and the second PLMN may include a second core network and a second base station. The second PLMN may be a network that operates normally, or a backup network that is pre-configured with the first PLMN, and so on.

[0147] In this embodiment, the second base station broadcasts the roaming permission message and the fault condition message, thereby enriching the content of the broadcast message and providing network services to the user equipment in a timely manner.

[0148] In one embodiment, the specific implementation of step 204 "receiving the second prompt message through the second broadcast channel corresponding to the second PLMN" is as follows:

[0149] A message allowing disaster roaming access of a user equipment corresponding to the first PLMN is received through a second broadcast channel corresponding to the second PLMN.

[0150] Specifically, after the user equipment deregisters from the first PLMN, it can receive a broadcast message in the second broadcast channel corresponding to the second PLMN. The user equipment can receive a message broadcast by the base station through the second broadcast channel corresponding to the second PLMN, for example, a message broadcast by the base station allowing disaster roaming access of the user equipment corresponding to the first PLMN after the base station determines that the first PLMN is in a disaster state.

[0151] The message allowing disaster roaming access of the user equipment corresponding to the first PLMN indicates that when the second PLMN determines that the first PLMN is in a disaster state, the second PLMN can provide disaster roaming service functions for the user equipment that has lost network services in the first PLMN. The second PLMN can be a normally operating network, or a backup network pre-configured for the first PLMN, and so on.

[0152] In this embodiment, the message broadcast by the base station allowing the user equipment corresponding to the first PLMN to access disaster roaming can enable the receiving user equipment to access the normally operating network in time, thereby ensuring the communication quality.

[0153] In one embodiment, Figure 3 As shown, step 206, a specific implementation method of performing disaster roaming registration processing in the second PLMN corresponding to the second base station includes:

[0154] Step 302: Send a disaster roaming registration request to the second PLMN.

[0155] Specifically, after receiving the second prompt information, the user equipment sends a disaster roaming registration request to the second PLMN, which may be a roaming registration request. The roaming registration request may carry identification information of the user equipment to be received, etc.

[0156] Step 304: Receive a registration acceptance message returned by the second PLMN.

[0157] Specifically, after receiving the disaster roaming registration request sent by the user equipment, the second PLMN can perform authentication processing, and after determining that the user equipment corresponding to the disaster roaming registration request has passed the authentication, it can be determined that the user equipment has passed the registration. Based on this, the second PLMN feeds back a registration acceptance message, and the user equipment can receive the registration acceptance message through the second broadcast channel.

[0158] In this embodiment, continuous network access of the user equipment can be achieved by sending the disaster roaming registration request.

[0159] In one embodiment, Figure 4 As shown, a network disaster roaming method is provided, and the method is applied to Figure 1 The base station in FIG. 1 is taken as an example to illustrate, and the following steps are included:

[0160] Step 402: If the first PLMN fails, a first prompt message is broadcasted through a first base station corresponding to the first PLMN on a first broadcast channel corresponding to the first PLMN.

[0161] The first prompt message is used to instruct the user equipment to deregister. The first base station may be a broadcast base station corresponding to the first PLMN, and the first base station may be a communication base station connected to the first PLMN. The user equipment may be a user equipment that cannot obtain network services from the first PLMN to which the first core network belongs, and a user equipment that is registered in the first core network but cannot obtain network services from the first PLMN to which the first core network belongs.

[0162] Specifically, if the first base station determines that the first PLMN corresponding to the first base station fails, the first base station can broadcast a first prompt message on a first broadcast channel corresponding to the first PLMN. In other words, if the first base station determines that the first PLMN corresponding to the first base station is in a disaster state, that is, in a state where network services cannot be provided to user equipment on the first PLMN, the first base station can broadcast a first prompt message through a first broadcast channel corresponding to the first PLMN. The first prompt message is used to prompt the user equipment to register from the first PLMN.

[0163] In one example, the second PLMN may be a V-PLMN, and the first PLMN may be an H-PLMN, wherein the V-PLMN may be configured as a PLMN that provides roaming services to UEs that lose service when the H-PLMN fails, and the V-PLMN discovers a H-PLMN failure and instructs the V-RAN to broadcast a message allowing H-PLMN users to roam, or an H-PLMN failure message and a message allowing H-PLMN users to roam. The V-PLMN may also be any PLMN that normally provides network services.

[0164] Step 404: broadcast a second prompt message through a second base station corresponding to the second PLMN on a second broadcast channel corresponding to the second PLMN.

[0165] The second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN; and the second base station may be a communication base station connected to the second PLMN.

[0166] Specifically, the second base station may broadcast a second prompt message on a second broadcast channel corresponding to the second PLMN. The second base station may broadcast a prompt message on a second broadcast channel of the second PLMN for indicating disaster roaming access of a user equipment corresponding to the first PLMN.

[0167] In one example, the user equipment corresponding to the first PLMN can be a user equipment connected to the first PLMN, that is, a user equipment that obtains network services through the first PLMN, or it can be a user equipment that has sent a registration request message to the first PLMN and received a registration acceptance message sent by the first PLMN; the second prompt message broadcast by the second base station is a prompt message for indicating disaster roaming access of the user equipment corresponding to the first PLMN, indicating that the second PLMN can provide disaster roaming services for the user equipment corresponding to the first PLMN.

[0168] In this embodiment, by broadcasting prompt messages through the first base station and the second base station respectively when the first PLMN fails, it can be ensured that the user equipment connected to the first PLMN will register from the first PLMN in time and connect to the second PLMN to obtain network services, thereby ensuring network quality and network stability.

[0169] In one embodiment, the method further comprises:

[0170] If, based on the target heartbeat mechanism, no communication message sent by the first PLMN is received within a preset time period, it is determined that the first PLMN is faulty.

[0171] The target heartbeat mechanism may be a preconfigured message receiving mechanism, for example, may include a preset heartbeat frequency.

[0172] Specifically, the first base station can determine the heartbeat frequency based on the target heartbeat mechanism, and determine the time period for message transmission based on the heartbeat frequency; if the first base station does not receive the heartbeat message sent by the first PLMN corresponding to the first base station within the preset time period, the first base station can determine that the first PLMN is in a fault state, that is, the first base station can determine that the first PLMN is in a disaster state.

[0173] In this embodiment, the base station can determine whether the PLMN corresponding to the base station fails through the heartbeat mechanism, and can timely discover the core network failure, thereby minimizing the impact of network interruption.

[0174] In one embodiment, the method further comprises:

[0175] If a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received, it is determined that the first PLMN is faulty.

[0176] Specifically, before determining that the first PLMN is in a disaster state, the first PLMN generates a notification message and sends the communication message to the first base station corresponding to the first PLMN. The notification message can be a message that the first PLMN is in a disaster state or a message that the first PLMN is in a fault state.

[0177] In this embodiment, the fault message sent by the first PLMN can provide accuracy and timeliness in determining the core network fault.

[0178] In one embodiment, the specific implementation of step 402 "broadcasting the first prompt message through the first base station corresponding to the first PLMN" includes:

[0179] A deregistration indication message is broadcasted through the first base station corresponding to the first PLMN.

[0180] Specifically, the first base station corresponding to the first PLMN can broadcast a deregistration indication message to the user equipment corresponding to the first PLMN within the first broadcast channel. The user equipment corresponding to the first PLMN can receive the deregistration indication message broadcast by the first base station through the first broadcast channel corresponding to the first PLMN. The user equipment deregisters from the first PLMN based on the deregistration indication message broadcast by the first base station.

[0181] In this embodiment, by timely broadcasting the deregistration indication message to the user equipment corresponding to the first PLMN, the timeliness of the release of the session resources of the user equipment can be ensured.

[0182] In one embodiment, the specific implementation of step 402 "broadcasting the first prompt message through the first base station corresponding to the first PLMN" includes:

[0183] A message that the first PLMN is in a disaster state is broadcasted through the first base station corresponding to the first PLMN.

[0184] Specifically, the first base station corresponding to the first PLMN can broadcast a message that the first PLMN is in a disaster state to the user equipment corresponding to the first PLMN within the first broadcast channel. The user equipment corresponding to the first PLMN can receive the message that the first PLMN is in a disaster state broadcast by the first base station through the first broadcast channel corresponding to the first PLMN. Based on the received message that the first PLMN is in a disaster state broadcast by the first base station, the user equipment can determine that the first PLMN is currently in a disaster state, or is in a fault state that cannot provide network services, and deregister from the first PLMN.

[0185] In this embodiment, by timely broadcasting the message that the first PLMN is in a disaster state to the user equipment corresponding to the first PLMN, the timeliness of releasing the session resources of the user equipment can be ensured.

[0186] In one embodiment, the specific implementation of step 404 "broadcasting the second prompt message through the second base station corresponding to the second PLMN" may include:

[0187] A message allowing disaster roaming access of the user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are broadcasted through the second base station corresponding to the second PLMN.

[0188] Specifically, the second base station can broadcast a message that allows disaster roaming access for user equipment corresponding to the first PLMN, and a message that the first PLMN is in a disaster state, through the second base station corresponding to the second PLMN. In other words, the second base station can broadcast a message that the first PLMN is in a fault state and a message that allows disaster roaming access for user equipment corresponding to the first PLMN, through the broadcast channel corresponding to the second PLMN. Based on this, the user equipment that receives the second prompt message can perform disaster roaming processing in the second PLMN.

[0189] In this embodiment, the interruption time of the network service on the user equipment side can be reduced, and the quality of the network service can be guaranteed.

[0190] In one embodiment, the specific implementation of step 404 "broadcasting the second prompt message through the second base station corresponding to the second PLMN" may include:

[0191] A message allowing disaster roaming access of the user equipment corresponding to the first PLMN is broadcasted through the second base station corresponding to the second PLMN.

[0192] Specifically, the second base station can broadcast a message allowing disaster roaming access for user equipment corresponding to the first PLMN through the second base station corresponding to the second PLMN. In other words, the second base station can broadcast a message allowing disaster roaming access for user equipment corresponding to the first PLMN through the broadcast channel corresponding to the second PLMN, based on which the user equipment receiving the second prompt message can perform disaster roaming processing in the second PLMN.

[0193] In this embodiment, the interruption time of the network service on the user equipment side can be reduced, and the quality of the network service can be guaranteed.

[0194] In one embodiment, Figure 5 As shown, a network disaster roaming method is provided, which is described by taking the method applied to a shared base station as an example, and includes the following steps:

[0195] Step 502: If the first PLMN fails, a first prompt message is broadcasted through a shared base station on a first broadcast channel corresponding to the first PLMN.

[0196] Among them, the first prompt message is used to instruct the user equipment to deregister. The shared base station can be a base station connected to multiple PLMNs. For example, the shared base station can be connected to the first PLMN and the second PLMN respectively. The shared base station can broadcast the broadcast message corresponding to the first PLMN through the first broadcast channel corresponding to the first PLMN. The shared base station can also broadcast the broadcast message corresponding to the second PLMN through the second broadcast channel corresponding to the second PLMN. That is to say, in the shared base station scenario, the base station RAN1 is simultaneously connected to the first core network CN1 and the second core network CN2. The base station RAN1 is a shared base station of the first core network CN1 and the second core network CN2, but the first PLMN and the second PLMN use different broadcast channels to communicate with the base station RAN1.

[0197] Specifically, the user equipment may be a user equipment that cannot obtain network services from the first PLMN to which the first core network belongs, and a user equipment that is registered with the first core network and cannot obtain network services from the first PLMN to which the first core network belongs.

[0198] In one example, if the shared base station determines that the first PLMN connected to the shared base station is faulty, the shared base station can broadcast a first prompt message on a first broadcast channel corresponding to the first PLMN. That is, if the first PLMN connected to the shared base station is in a disaster state, that is, the first PLMN is in a state where it cannot be provided with network services by a user device on the first PLMN, the shared base station can broadcast a first prompt message through a first broadcast channel corresponding to the first PLMN. The user device that receives the first prompt message can deregister from the first PLMN and release the session resources of the first PLMN and the user device.

[0199] Step 504: broadcast a second prompt message through the shared base station on a second broadcast channel corresponding to the second PLMN.

[0200] The second prompt message is used to indicate disaster roaming access of the user equipment corresponding to the first PLMN.

[0201] Specifically, the shared base station may broadcast a message allowing disaster roaming access of the user equipment corresponding to the first PLMN on the second broadcast channel of the second PLMN. The shared base station may broadcast a second prompt message on the second broadcast channel corresponding to the second PLMN.

[0202] In one example, the user equipment corresponding to the first PLMN may be a user equipment connected to the first PLMN, that is, a user equipment that obtains network services through the first PLMN; in another example, the user equipment corresponding to the first PLMN may also be a user equipment that has sent a registration request message to the first PLMN and received a registration acceptance message sent by the first PLMN; the message broadcast by the shared base station allowing disaster roaming access for the user equipment corresponding to the first PLMN indicates that the second PLMN can provide disaster roaming services for the user equipment corresponding to the first PLMN.

[0203] In this embodiment, by broadcasting a prompt message through a shared base station when the first PLMN fails, it can be ensured that the user equipment connected to the first PLMN can register from the first PLMN in time and simultaneously connect to the second PLMN to obtain network services, thereby ensuring network quality and network stability.

[0204] In one embodiment, the method further comprises:

[0205] If, based on the target heartbeat mechanism, no communication message sent by the first PLMN is received within a preset time period, it is determined that the first PLMN is faulty.

[0206] The target heartbeat mechanism may be a preconfigured message receiving mechanism, for example, may include a preset heartbeat frequency.

[0207] Specifically, the shared base station can determine the heartbeat frequency based on the target heartbeat mechanism, and determine the time period for message transmission based on the heartbeat frequency; if the shared base station does not receive the heartbeat message sent by the first PLMN to which the shared base station is connected within the time period for message transmission (i.e., the preset time period), the shared base station can determine that the PLMN is in a fault state, that is, the shared base station can determine that the first PLMN is in a disaster state.

[0208] In this embodiment, the base station can determine whether the PLMN corresponding to the base station fails through the heartbeat mechanism, and can timely discover the core network failure, thereby minimizing the impact of network interruption.

[0209] In one embodiment, the method further comprises:

[0210] If a message indicating that the first PLMN is in a disaster state is received from the second PLMN, it is determined that the first PLMN is faulty.

[0211] Specifically, if the shared base station receives a message that the first PLMN is in a disaster state sent by the connected second PLMN, the shared base station can determine that the first PLMN is in a fault state. That is to say, if the second PLMN determines that the first PLMN is in a disaster state, the second PLMN can generate a disaster notification message and send the disaster notification message to the shared base station connected to the first PLMN and the second PLMN. After the shared base station receives the disaster notification message, it can be determined that the first PLMN is in a disaster state, wherein the disaster notification message can be a message that the first PLMN is in a disaster state.

[0212] In this embodiment, the message that other PLMNs are in a disaster state can be broadcast to the base station through the second PLMN, thereby ensuring the timeliness of the message delivery to the PLMN in a disaster state.

[0213] In one embodiment, the method further comprises:

[0214] If a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received, it is determined that the first PLMN is faulty.

[0215] Specifically, if the shared base station receives a message that the first PLMN is in a disaster state sent by the connected first PLMN, the shared base station can determine that the first PLMN is in a fault state. That is to say, if the first PLMN determines that it is in a disaster state, the first PLMN can generate a disaster notification message and send the disaster notification message to the shared base station connected to the first PLMN. After the shared base station receives the disaster notification message, it can be determined that the first PLMN is in a disaster state, wherein the disaster notification message can be a message that the first PLMN is in a disaster state.

[0216] In this embodiment, the message that the device is in a disaster state can be broadcasted through the first PLMN to ensure the timeliness of the message delivery to the PLMN in the disaster state.

[0217] In one embodiment, the specific implementation of step 502 of "broadcasting the first prompt message through the shared base station" includes:

[0218] The deregistration indication message is broadcasted via the shared base station.

[0219] Specifically, the shared base station corresponding to the first PLMN can broadcast a deregistration indication message to the user equipment corresponding to the first PLMN within the first broadcast channel. The user equipment corresponding to the first PLMN can receive the deregistration indication message broadcast by the shared base station through the first broadcast channel corresponding to the first PLMN. The user equipment deregisters from the first PLMN based on the received deregistration indication message broadcast by the shared base station.

[0220] In this embodiment, by timely broadcasting the deregistration indication message to the user equipment corresponding to the first PLMN, the timeliness of the release of the session resources of the user equipment can be ensured.

[0221] In one embodiment, the specific implementation of step 502 of "broadcasting the first prompt message through the shared base station" includes:

[0222] A message that the first PLMN is in a disaster state is broadcasted through the shared base station.

[0223] Specifically, the shared base station corresponding to the first PLMN can broadcast a message that the first PLMN is in a disaster state to the user equipment corresponding to the first PLMN within the first broadcast channel. The user equipment corresponding to the first PLMN can receive the message that the first PLMN is in a disaster state broadcast by the shared base station through the first broadcast channel corresponding to the first PLMN. Based on the received message that the first PLMN is in a disaster state broadcast by the shared base station, the user equipment can determine that the first PLMN is currently in a disaster state, or is in a fault state that cannot provide network services, and deregister from the first PLMN.

[0224] In this embodiment, by timely broadcasting the message that the first PLMN is in a disaster state to the user equipment corresponding to the first PLMN, the timeliness of releasing the session resources of the user equipment can be ensured.

[0225] In one embodiment, step 504, "specific implementation of broadcasting the second prompt message through the second base station on the second broadcast channel corresponding to the second PLMN" includes:

[0226] On the second broadcast channel corresponding to the second PLMN, a message allowing disaster roaming access of the user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are broadcast.

[0227] Specifically, the shared base station can broadcast, on the second broadcast channel corresponding to the second PLMN, a message that allows the user equipment corresponding to the first PLMN to access disaster roaming, and a message that the first PLMN is in a disaster state. In other words, the shared base station can broadcast, on the broadcast channel corresponding to the second PLMN, a message that the first PLMN is in a fault state and a message that allows the user equipment corresponding to the first PLMN to access disaster roaming, so that the user equipment that receives the second prompt message can perform disaster roaming processing in the second PLMN.

[0228] In this embodiment, the interruption time of the network service on the user equipment side can be reduced, and the quality of the network service can be guaranteed.

[0229] In one embodiment, step 504, "specific implementation of broadcasting the second prompt message through the second base station on the second broadcast channel corresponding to the second PLMN" includes:

[0230] A message allowing disaster roaming access of the user equipment corresponding to the first PLMN is broadcasted through the shared base station.

[0231] Specifically, the shared base station can broadcast a message allowing disaster roaming access to the user equipment corresponding to the first PLMN through the shared base station corresponding to the second PLMN. In other words, the shared base station can broadcast a message allowing disaster roaming access to the user equipment corresponding to the first PLMN through the broadcast channel corresponding to the second PLMN, based on which the user equipment receiving the second prompt message can perform disaster roaming processing in the second PLMN.

[0232] In this embodiment, the interruption time of the network service on the user equipment side can be reduced, and the quality of the network service can be guaranteed.

[0233] In one embodiment, the method further comprises:

[0234] If a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received, it is determined that the first PLMN is faulty.

[0235] Specifically, before determining that the first PLMN is in a disaster state, the first PLMN generates a notification message and sends the communication message to the shared base station corresponding to the first PLMN. The notification message can be a message that the first PLMN is in a disaster state or a message that the first PLMN is in a fault state.

[0236] In this embodiment, the fault message sent by the first PLMN can provide accuracy and timeliness in determining the core network fault.

[0237] The following describes in detail the execution process of the above network disaster roaming method in conjunction with a specific embodiment:

[0238] The application scenario in this embodiment can be an application scenario in which the unified data management (UDM) network element, the unified data repository (UDR) network element, and the authentication server function (AUSF) network element are in a valid state, which can ensure the authentication of the user equipment by the faulty PLMN. In the existing network, the UDM network element, the UDR network element, and the AUSF network element are generally deployed in a centralized manner, and are generally deployed in different DCs with other network elements, and the probability of failure at the same time as other NFs is low.

[0239] This embodiment may include UE (user equipment), RAN 1 (base station of the first PLMN), RAN 2 (base station of the second PLMN), CN 1 (core network of the first PLMN), CN 2 (core network of the second PLMN), RAN 1 is connected to the first PLMN, RAN 2 is connected to the second PLMN, and RAN 1 and RAN 2 may be shared base stations of the first PLMN and the second PLMN. CN 1 is the faulty core network of the first PLMN, wherein the UDM, UDR and AUSF belonging to the first PLMN still work normally to support the authentication of the terminal. CN 2 is the core network of the second PLMN, and all network elements can work normally. The second PLMN is configured as a PLMN that provides disaster roaming services for the terminal when the service of the first PLMN is interrupted. Among them, the first PLMN includes RAN 1 and CN 1; the second PLMN includes RAN 21 and CN 2.

[0240] In one embodiment, Figure 6 A signaling interaction flow chart of a network disaster roaming method is provided. Figure 6 As shown, the method includes the following steps.

[0241] S1. UE can send a registration request to CN1 through RAN1.

[0242] S2 and CN1 may feed back a registration acceptance message to the UE through RAN1; specifically, before CN1 fails, the terminal device UE is registered to the first PLMN network; CN1 fails, but H-UDM, H-UDR, and H-AUSF still work normally.

[0243] S3. RAN1 detects a CN1 failure. Specifically, RAN1 can determine that CN1 has failed (is in a disaster state) in the following ways: a. CN1 notifies RAN1 before the failure; b. Based on the heartbeat mechanism, RAN1 does not receive a message from CN1 within a preset time.

[0244] S4. The UE receives a deregistration instruction from a broadcast channel of the first PLMN.

[0245] S5. The UE registers from the first PLMN.

[0246] S6. The UE receives, from the broadcast channel of the second PLMN, a first PLMN failure message and a message allowing the network user to roam and access.

[0247] S7. The UE sends a disaster roaming registration request to CN2 through RAN2.

[0248] S8. The UE receives the registration acceptance message returned by CN2. Specifically, the UE accesses the second PLMN in disaster roaming and regains network service.

[0249] In one embodiment, Figure 7 A signaling interaction flow chart of a network disaster roaming method is provided. Figure 7 As shown, the method comprises the following steps:

[0250] S1. UE can send a registration request to CN1 through RAN1.

[0251] S2 and CN1 may feed back a registration acceptance message to the UE through RAN1; specifically, before CN1 fails, the terminal device UE is registered to the first PLMN network; CN1 fails, but H-UDM, H-UDR, and H-AUSF still work normally.

[0252] S3. RAN1 detects a CN1 failure. Specifically, RAN1 can determine that CN1 has failed (is in a disaster state) in the following ways: a. CN1 notifies RAN1 before the failure; b. Based on the heartbeat mechanism, RAN1 does not receive a message from CN1 within a preset time.

[0253] S4. The UE receives a first PLMN failure message from a broadcast channel of the first PLMN.

[0254] S5. The UE registers from the first PLMN.

[0255] S6. The UE receives a message allowing disaster roaming access for users of the first PLMN from the broadcast channel of the second PLMN.

[0256] S7. The UE sends a disaster roaming registration request to CN2 through RAN2.

[0257] S8. The UE receives the registration acceptance message returned by CN2. Specifically, the UE accesses the second PLMN in disaster roaming and regains network service.

[0258] The present embodiment provides a method for network disaster roaming, in which when a core network failure occurs in the resident network, the terminal deregisters according to a broadcast message of the resident network, receives a message of a failure in the resident network and a message of allowing roaming from a broadcast channel of the roaming network, and registers with the roaming network. When a core network failure occurs in the resident network, the terminal receives a network failure message from a broadcast channel of the resident network, deregisters, receives a message of allowing roaming from a broadcast channel of the roaming network, and registers with the roaming network. In the case of a core network failure, the terminal deregisters from the failed network according to the broadcast message, and roams to access the disaster recovery network to obtain services, thereby solving the problem that the wireless connection is not affected when the core network fails, but the terminal cannot detect the network failure, resulting in a long service interruption.

[0259] In one example, in a method for network disaster roaming provided by this embodiment, a core network failure occurs in the first PLMN to which the terminal is currently connected and cannot provide communication services. The terminal receives a message from the first broadcast channel of the first PLMN, deregisters from the first PLMN, receives a "roaming allowed" message from the second broadcast channel of the second PLMN, sends a registration request message to the second PLMN, and receives a registration acceptance message sent by the second PLMN. The message received by the terminal from the first broadcast channel of the first PLMN may be a "first PLMN failure" message; the message may also be a deregistration indication. After the terminal deregisters, it receives a "first PLMN failure" message and a "roaming allowed" message from the second broadcast channel of the second PLMN.

[0260] It should be understood that although Figure 1-7 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 1-7 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0261] In one embodiment, Figure 8 As shown, a network disaster roaming device 800 is provided, which is applied to a shared base station, and the device includes:

[0262] A first broadcast module 802 is configured to broadcast a first prompt message through a shared base station on a first broadcast channel corresponding to the first PLMN if the first PLMN fails, wherein the first prompt message is used to instruct the user equipment to deregister;

[0263] The second broadcast module 804 is used to broadcast a second prompt message through a shared base station on a second broadcast channel corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

[0264] In one embodiment, the device further comprises:

[0265] The first determination module is configured to determine that the first PLMN is faulty if no communication message sent by the first PLMN is received within a preset time period based on a target heartbeat mechanism.

[0266] In one embodiment, the device further comprises:

[0267] The second determining module is configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state is received from the second PLMN.

[0268] In one embodiment, the device further comprises:

[0269] The third determining module is configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state, sent by the first PLMN, is received.

[0270] In one embodiment, the first broadcast module is specifically used for:

[0271] The deregistration indication message is broadcasted via the shared base station.

[0272] In one embodiment, the first broadcast module is specifically used for:

[0273] A message that the first PLMN is in a disaster state is broadcasted through the shared base station.

[0274] In one embodiment, the second broadcast module is specifically configured to:

[0275] A message allowing disaster roaming access of a user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are broadcasted through the shared base station.

[0276] In one embodiment, the second broadcast module is specifically configured to:

[0277] A message allowing disaster roaming access of the user equipment corresponding to the first PLMN is broadcasted through the shared base station.

[0278] In one embodiment, Fig. 9 As shown, a network disaster roaming device 900 is provided, which is applied to a base station, and the device includes:

[0279] The third broadcast module 902 is configured to broadcast a first prompt message through a first base station corresponding to the first PLMN on a first broadcast channel corresponding to the first PLMN if the first PLMN fails, wherein the first prompt message is used to instruct the user equipment to deregister;

[0280] The fourth broadcast module 904 is used to broadcast a second prompt message on a second broadcast channel corresponding to the second PLMN through a second base station corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

[0281] In one embodiment, the device further comprises:

[0282] The fourth determination module is configured to determine that the first PLMN is faulty if no communication message sent by the first PLMN is received within a preset time period based on the target heartbeat mechanism.

[0283] In one embodiment, the device further comprises:

[0284] The fifth determining module is configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state, sent by the first PLMN, is received.

[0285] In one embodiment, the third broadcast module is specifically configured to broadcast a deregistration indication message through a first base station corresponding to the first PLMN.

[0286] In one embodiment, the third broadcast module is specifically used to broadcast a message that the first PLMN is in a disaster state through a first base station corresponding to the first PLMN.

[0287] In one embodiment, the fourth broadcast module is specifically used to broadcast, through the second base station corresponding to the second PLMN, a message that the user equipment corresponding to the first PLMN is allowed to access disaster roaming, and a message that the first PLMN is in a disaster state.

[0288] In one embodiment, the fourth broadcast module is specifically configured to: broadcast, through the second base station corresponding to the second PLMN, a message that allows disaster roaming access of the user equipment corresponding to the first PLMN.

[0289] In one embodiment, Fig.10 As shown, a network disaster roaming device 1000 is provided, which is applied to user equipment, and the device includes:

[0290] A first receiving module 1002 is configured to receive a first prompt message through a first broadcast channel corresponding to a first PLMN, where the first prompt message is used to instruct a user equipment to deregister;

[0291] The second receiving module 1004 is used to deregister from the first PLMN and receive a second prompt message through a second broadcast channel corresponding to the second PLMN, where the second prompt message is used to instruct the user equipment corresponding to the first PLMN to perform disaster roaming;

[0292] The roaming module 1006 is used to perform disaster roaming registration processing in the second PLMN.

[0293] In one of the embodiments, the first receiving module is specifically configured to: receive a deregistration indication message through a first broadcast channel corresponding to the first PLMN.

[0294] In one of the embodiments, the first receiving module is specifically configured to receive a message indicating that the first PLMN is in a disaster state through a first broadcast channel corresponding to the first PLMN.

[0295] In one of the embodiments, the second receiving module is specifically used to: receive a message allowing disaster roaming access of a user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state through a second broadcast channel corresponding to the second PLMN.

[0296] In one of the embodiments, the second receiving module is specifically configured to: receive a message allowing disaster roaming access of a user equipment corresponding to the first PLMN through a second broadcast channel corresponding to the second PLMN.

[0297] In one of the embodiments, the roaming module is specifically configured to: send a disaster roaming registration request to the second PLMN;

[0298] Receive a registration acceptance message returned by the second PLMN.

[0299] For the specific definition of the network disaster roaming device, please refer to the definition of the network disaster roaming method above, which will not be repeated here. Each module in the above-mentioned network disaster roaming device can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0300] Fig.11 It is a schematic diagram of the structure of an access network device provided by an embodiment of the present invention. Fig.11 The access network device 1100 shown includes: at least one processor 1101, a memory 1102, and at least one network interface 1104. The various components in the access network device 1100 are coupled together through a bus system 1105. It can be understood that the bus system 1105 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1105 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, the bus system 1105 is not described in detail. Figure 2 Various buses are labeled as bus system 1105. In addition, the embodiment of the present invention also includes a transceiver 1106, which can be multiple components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium.

[0301] It can be understood that the memory 1102 in the embodiment of the present invention can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a 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 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 RAM bus random access memory (DRRAM). The memory 1102 of the system and method described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0302] In some implementations, the memory 1102 stores the following elements, executable modules or data structures, or their subsets, or their extensions: operating system 11021. The operating system 11021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks.

[0303] In an embodiment of the present invention, by calling the program or instructions stored in the memory 1102, the processor is used to broadcast a first prompt message on a first broadcast channel corresponding to the first PLMN through a shared base station and a transmitter if a first PLMN fails, and the first prompt message is used to instruct the user equipment to de-register. The processor is also used to broadcast a second prompt message on a second broadcast channel corresponding to the second PLMN through a shared base station and a transmitter, and the second prompt message is used to instruct the user equipment corresponding to the first PLMN to perform disaster roaming access.

[0304] Part or all of the methods disclosed in the above embodiments of the present invention may also be applied to the processor 1101, or implemented by the processor 1101, or implemented by the processor 1101 in cooperation with other components (such as a transceiver). The processor 1101 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware or software instructions in the processor 1101. The above processor 1101 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as being executed by a hardware decoding processor, or may be executed by a combination of hardware and software modules in a decoding processor. The software module may be located in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102 and completes the steps of the above method in combination with its hardware.

[0305] It is to be understood that the embodiments described in the embodiments of the present invention can be implemented by 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 (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP Device, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions of the present application or a combination thereof.

[0306] For software implementation, the technology of the embodiments of the present invention can be implemented by a module (such as a process, function, etc.) that performs the functions of the embodiments of the present invention. The software code can be stored in a memory and executed by the processor 1101. The memory can be implemented in the processor 1101 or outside the processor 1101.

[0307] In one of the embodiments, the processor is further configured to determine that the first PLMN is faulty if no communication message sent by the first PLMN is received within a preset time period based on the target heartbeat mechanism.

[0308] In one of the embodiments, the processor is further configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state is received through the receiver from the second PLMN.

[0309] In one of the embodiments, the processor is further configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received through the receiver.

[0310] In one of the embodiments, the processor is further configured to broadcast a deregistration indication message through the shared base station.

[0311] In one of the embodiments, the processor is further configured to broadcast, through the shared base station, a message indicating that the first PLMN is in a disaster state.

[0312] In one of the embodiments, the processor is further configured to broadcast, through a shared base station, a message allowing disaster roaming access to a user equipment corresponding to the first PLMN, and a message indicating that the first PLMN is in a disaster state.

[0313] In one of the embodiments, the processor is further configured to broadcast, through a shared base station, a message allowing disaster roaming access to a user equipment corresponding to the first PLMN.

[0314] In an embodiment of the present invention, by calling the program or instructions stored in the memory 1102, the processor is used to broadcast a first prompt message on a first broadcast channel corresponding to the first PLMN through a first base station corresponding to the first PLMN if a first PLMN fails, and the first prompt message is used to instruct the user equipment to de-register. The processor is also used to broadcast a second prompt message on a second broadcast channel corresponding to the second PLMN through a second base station corresponding to the second PLMN, and the second prompt message is used to instruct the user equipment corresponding to the first PLMN to perform disaster roaming access.

[0315] In one of the embodiments, the processor is further configured to determine that the first PLMN is faulty if no communication message sent by the first PLMN is received within a preset time period based on a target heartbeat mechanism.

[0316] In one of the embodiments, the processor is further configured to determine that the first PLMN is faulty if a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received through the receiver.

[0317] In one of the embodiments, the processor is further configured to broadcast a deregistration indication message through a first base station corresponding to the first PLMN.

[0318] In one of the embodiments, the processor is further configured to broadcast a message indicating that the first PLMN is in a disaster state through a first base station corresponding to the first PLMN.

[0319] In one of the embodiments, the processor is further configured to broadcast, through a second base station corresponding to the second PLMN, a message allowing disaster roaming access for a user equipment corresponding to the first PLMN, and a message indicating that the first PLMN is in a disaster state.

[0320] In one of the embodiments, the processor is further configured to broadcast, through a second base station corresponding to the second PLMN, a message allowing disaster roaming access to a user equipment corresponding to the first PLMN.

[0321] In an embodiment of the present invention, by calling the program or instructions stored in the memory 1102, the receiver receives a first prompt message through a first broadcast channel corresponding to the first PLMN, and the first prompt message is used to instruct the user equipment to deregister; the processor is also used to deregister from the first PLMN and receive a second prompt message through a second broadcast channel corresponding to the second PLMN, and the second prompt message is used to indicate disaster roaming access of the user equipment corresponding to the first PLMN; the processor is also used to perform disaster roaming registration processing in the second PLMN.

[0322] In one of the embodiments, the receiver is used to receive a deregistration indication message via a first broadcast channel corresponding to the first PLMN.

[0323] In one of the embodiments, the receiver is used to receive a message indicating that the first PLMN is in a disaster state through a first broadcast channel corresponding to the first PLMN.

[0324] In one of the embodiments, the receiver is used to receive a message allowing disaster roaming access of a user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state through a second broadcast channel corresponding to the second PLMN.

[0325] In one of the embodiments, the receiver is used to receive a message allowing disaster roaming access of a user equipment corresponding to the first PLMN through a second broadcast channel corresponding to the second PLMN.

[0326] In one of the embodiments, the transmitter is used to send a disaster roaming registration request to the second PLMN; and the receiver is used to receive a registration acceptance message returned by the second PLMN.

[0327] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database 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 may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0328] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0329] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A network disaster roaming method, characterized in that: Applied to a shared base station, the method comprises: If the first PLMN fails, broadcasting a first prompt message through the shared base station on a first broadcast channel corresponding to the first PLMN, wherein the first prompt message is used to instruct the user equipment to deregister; A second prompt message is broadcasted through the shared base station on a second broadcast channel corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

2. The method according to claim 1, characterized in that The method further comprises: If, based on the target heartbeat mechanism, no communication message sent by the first PLMN is received within a preset time period, it is determined that the first PLMN is faulty.

3. The method according to claim 1, characterized in that The method further comprises: If a message indicating that the first PLMN is in a disaster state is received from the second PLMN, it is determined that the first PLMN is faulty.

4. The method according to claim 1, characterized in that: The method further comprises: If a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received, it is determined that the first PLMN is faulty.

5. The method according to claim 1, characterized in that The broadcasting of the first prompt message through the shared base station includes: A deregistration indication message is broadcasted through the shared base station.

6. The method according to claim 1, characterized in that The broadcasting of the first prompt message through the shared base station includes: A message that the first PLMN is in a disaster state is broadcasted through the shared base station.

7. The method according to claim 1, characterized in that The broadcasting of the second prompt message through the shared base station includes: A message allowing disaster roaming access of user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are broadcasted through the shared base station.

8. The method according to claim 1, characterized in that The second broadcast channel corresponding to the second PLMN, broadcasting the second prompt message through the shared base station, includes: A message allowing disaster roaming access of user equipment corresponding to the first PLMN is broadcasted through the shared base station.

9. A network disaster roaming method, characterized in that: Applied to a base station, the method comprises: If the first PLMN fails, broadcasting a first prompt message through a first base station corresponding to the first PLMN on a first broadcast channel corresponding to the first PLMN, wherein the first prompt message is used to instruct the user equipment to deregister; A second prompt message is broadcasted on a second broadcast channel corresponding to the second PLMN through a second base station corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

10. The method according to claim 9, characterized in that The method further comprises: If, based on the target heartbeat mechanism, no communication message sent by the first PLMN is received within a preset time period, it is determined that the first PLMN is faulty.

11. The method according to claim 9, characterized in that The method further comprises: If a message indicating that the first PLMN is in a disaster state and sent by the first PLMN is received, it is determined that the first PLMN is faulty.

12. The method according to claim 9, characterized in that The broadcasting of the first prompt message through the first base station corresponding to the first PLMN includes: A deregistration indication message is broadcasted through the first base station corresponding to the first PLMN.

13. The method according to claim 9, characterized in that The broadcasting of the first prompt message through the first base station corresponding to the first PLMN includes: A message that the first PLMN is in a disaster state is broadcasted through the first base station corresponding to the first PLMN.

14. The method according to claim 9, characterized in that The broadcasting of the second prompt message through the second base station corresponding to the second PLMN includes: A message allowing disaster roaming access for user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are broadcasted through the second base station corresponding to the second PLMN.

15. The method according to claim 9, characterized in that The broadcasting of the second prompt message through the second base station corresponding to the second PLMN includes: A message allowing disaster roaming access of user equipment corresponding to the first PLMN is broadcasted through the second base station corresponding to the second PLMN.

16. A network disaster roaming method, characterized in that: Applied to user equipment, the method comprises: receiving a first prompt message through a first broadcast channel corresponding to the first PLMN, where the first prompt message is used to instruct the user equipment to deregister; deregistering from the first PLMN, and receiving a second prompt message through a second broadcast channel corresponding to the second PLMN, wherein the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN; Disaster roaming registration processing is performed in the second PLMN.

17. The method according to claim 16, characterized in that The receiving the first prompt message through the first broadcast channel corresponding to the first PLMN includes: A deregistration indication message is received through a first broadcast channel corresponding to the first PLMN.

18. The method according to claim 16, characterized in that The receiving the first prompt message through the first broadcast channel corresponding to the first PLMN includes: A message that the first PLMN is in a disaster state is received through a first broadcast channel corresponding to the first PLMN.

19. The method according to claim 16, characterized in that The receiving the second prompt message through the second broadcast channel corresponding to the second PLMN includes: A message allowing disaster roaming access of a user equipment corresponding to the first PLMN and a message that the first PLMN is in a disaster state are received through a second broadcast channel corresponding to the second PLMN.

20. The method according to claim 16, characterized in that The receiving the second prompt message through the second broadcast channel corresponding to the second PLMN includes: A message allowing disaster roaming access of a user equipment corresponding to the first PLMN is received through a second broadcast channel corresponding to the second PLMN.

21. The method according to claim 16, characterized in that The performing disaster roaming registration processing in the second PLMN includes: Sending a disaster roaming registration request to the second PLMN; Receive a registration acceptance message returned by the second PLMN.

22. A network disaster roaming device, characterized in that: Applied to a shared base station, the device comprises: A first broadcast module, configured to broadcast a first prompt message through the shared base station on a first broadcast channel corresponding to the first PLMN if the first PLMN fails, wherein the first prompt message is used to instruct the user equipment to deregister; The second broadcast module is used to broadcast a second prompt message through the shared base station on a second broadcast channel corresponding to the second PLMN, where the second prompt message is used to indicate disaster roaming access of the user equipment corresponding to the first PLMN.

23. A network disaster roaming device, characterized in that: Applied to a base station, the device comprises: A third broadcast module, configured to broadcast a first prompt message through a first base station corresponding to the first PLMN on a first broadcast channel corresponding to the first PLMN if the first PLMN fails, wherein the first prompt message is used to instruct the user equipment to deregister; The fourth broadcast module is used to broadcast a second prompt message on a second broadcast channel corresponding to the second PLMN through a second base station corresponding to the second PLMN, wherein the second prompt message is used to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

24. A network disaster roaming device, characterized in that: Applied to user equipment, the device comprises: A first receiving module, configured to receive a first prompt message through a first broadcast channel corresponding to a first PLMN, wherein the first prompt message is used to instruct the user equipment to deregister; A second receiving module, configured to deregister from the first PLMN and receive a second prompt message through a second broadcast channel corresponding to the second PLMN, wherein the second prompt message is used to instruct a user equipment corresponding to the first PLMN to perform disaster roaming; The roaming module is used to perform disaster roaming registration processing in the second PLMN.

25. A communication device, characterized in that: include: A transmitter and a processor, wherein: The processor is configured to broadcast a first prompt message through the transmitter and a shared base station on a first broadcast channel corresponding to the first PLMN if the first PLMN fails, wherein the first prompt message is used to instruct the user equipment to deregister; The processor is further configured to broadcast a second prompt message on a second broadcast channel corresponding to the second PLMN through the transmitter and the shared base station, wherein the second prompt message is configured to indicate disaster roaming access of a user equipment corresponding to the first PLMN.

26. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 21 are implemented.

27. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 21 are implemented.

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