WO2023024874A1 - Broadcast message sending method and apparatus, and entity, electronic device and storage medium - Google Patents

Abstract

Provided in the present application are a broadcast message sending method and apparatus, and an entity, an electronic device and a storage medium. The method comprises: acquiring information to be sent, wherein said information comprises geographic region information and notification information; searching a region identifier mapping table according to the geographic region information, so as to determine a network type corresponding to the geographic region information, and routing information, wherein the routing information is used for representing address information of a transmission path between the current device and a target device; and according to the notification information, the routing information and the network type corresponding to the geographic region information, generating a broadcast a message and sending same.

Description

Broadcast message sending method, device, entity, electronic device and storage medium

Cross References to Related Applications

This application claims priority to Patent Application No. 202110996396.X filed with the China Patent Office on August 27, 2021, the entire contents of which are hereby incorporated by reference.

technical field

This application relates to but not limited to the field of communication technology.

Background technique

For example, when it is determined that an emergency has occurred, the operator can send emergency notification information to the terminals in a specific area through the wireless broadcast channel in the Cell Broadcast System (CBS), so that the terminal users in the specific area can Know the content of the emergency to avoid mass panic.

However, the communication equipment used by the operator supports a variety of different communication systems, and it is impossible to notify all end users by sending a broadcast message only once, which may easily cause end users to not be informed of emergency events in time, resulting in information lag.

Contents of the invention

The present application provides a broadcast message sending method, device, entity, electronic equipment and storage medium.

The present application provides a method for sending a broadcast message. The method includes: acquiring information to be sent, the information to be sent includes geographical area information and notification information; searching the area identification mapping table according to the geographical area information, and determining the network type and route corresponding to the geographical area information Information, the routing information is used to represent the address information of the transmission path between the current device and the target device; according to the network type corresponding to the notification information, routing information and geographical area information, generate and send a broadcast message.

The present application provides a broadcast message sending device, including: an acquisition module configured to acquire information to be sent, the information to be sent includes geographic area information and notification information; a search module configured to search for an area identifier mapping table based on the geographic area information, Determine the network type and routing information corresponding to the geographical area information, the routing information is used to represent the address information of the transmission path between the current device and the target device; the processing module is configured as a network corresponding to the notification information, routing information and geographical area information type, generate and send broadcast messages.

The present application provides a broadcast entity, including: at least one device for sending a broadcast message according to any one of the present application.

The present application provides an electronic device, including: one or more processors; memory, on which one or more programs are stored, and when one or more programs are executed by one or more processors, one or more processing The device implements any broadcast message sending method in this application.

The present application provides a readable storage medium, the readable storage medium stores a computer program, and when the computer program is executed by a processor, any method for sending a broadcast message in the present application is implemented.

Description of drawings

FIG. 1 shows a structural diagram of the network architecture of the broadcasting service provided by the present application.

FIG. 2 shows a structural diagram of the network architecture of the broadcasting service provided by the present application.

FIG. 3 shows a structural diagram of the network architecture of the broadcasting service provided by the present application.

Fig. 4 shows a schematic flowchart of the method for sending a broadcast message provided by the present application.

Fig. 5 shows a schematic flowchart of the method for sending a broadcast message provided by the present application.

FIG. 6 shows a structural diagram of a device for sending a broadcast message provided by the present application.

FIG. 7 shows a structural diagram of the broadcast entity provided by the present application.

FIG. 8 shows a structural diagram of the broadcast message sending system provided by the present application.

FIG. 9 shows a schematic flowchart of a method for broadcasting a broadcast message across the entire network by the broadcast message sending system provided by the present application.

FIG. 10 shows a schematic flowchart of a method for broadcasting in a certain city by the broadcast message sending system provided by the present application.

Fig. 11 shows a structural diagram of an exemplary hardware architecture of a computing device capable of implementing the broadcast message sending method and apparatus according to the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manner of the present application will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the implementation modes and the features in the implementation modes in the present application can be combined arbitrarily with each other.

FIG. 1 shows a structural diagram of the network architecture of the broadcasting service provided by the present application. As shown in Figure 1, in one embodiment, the network of the broadcast service may be a fifth generation mobile communication network (5th Generation Mobile Networks, 5G), and the network may include the following equipment: a cell broadcast system server 110 in the CBS, The mobility management entity resource pool 120, the first base station 131, the second base station 132, ..., the Mth base station 13M, where M represents the number of base stations, and M is an integer greater than or equal to 1.

Wherein, the mobility management entity resource pool 120 includes: N Access and Mobility Management Function entities (Access and Mobility Management Function, AMF), where N represents the number of AMFs, and N is an integer greater than or equal to 1. For example, the mobility management entity resource pool 120 includes: a first access mobility management functional entity 121 , a second access mobility management functional entity 122 , ..., an Nth access mobility management functional entity 12N.

It should be noted that the N50 interface is used for communication between the cell broadcast system server 110 and each AMF, and the N2 interface is used for communication between each AMF and each base station. For example, the first access mobility management function entity 121 uses the N2 interface. communicate with the first base station 131 , the second base station 132 , . . . , and the Mth base station 13M respectively.

Wherein, since the AMF cannot identify the target device of the broadcast message, each AMF needs to send the broadcast message to the base station corresponding to each AMF in the mobility management entity resource pool 120 through the N50 interface and the N2 interface, and the broadcast message is sent by each base station It is judged whether the broadcast message needs to be processed by the current base station (for example, the first base station 131 ). If it is determined that the first base station 131 does not need to process the broadcast message, the first base station 131 discards the broadcast message, but the message processing amount of the first base station 131 is increased.

When it is determined that the cell broadcast system server 110 needs to perform network-wide broadcast, each AMF will receive a large number of broadcast messages, and each AMF will send all the received broadcast messages to each base station through the N2 interface, resulting in N2 The interface will be occupied by a large number of invalid broadcast messages, which wastes network bandwidth and increases the processing overhead of each base station for invalid broadcast messages, resulting in a decrease in the processing performance of the base station.

FIG. 2 shows a structural diagram of the network architecture of the broadcasting service provided by the present application. As shown in Figure 2, in one embodiment, the network of the broadcast service may be a fourth generation mobile communication network (4th Generation Mobile Networks, 4G), and the network may include the following equipment: a cell broadcast system server 110 in the CBS, The mobility management entity resource pool 220, the first eNB 231, the second eNB 232, ..., the Kth eNB 23K, where K represents the number of eNBs, and K is an integer greater than or equal to 1.

Wherein, the mobility management entity resource pool 220 includes: P mobility management entities (Mobility Management Entity, MME), where P represents the number of MMEs, and P is an integer greater than or equal to 1. For example, the mobility management entity resource pool 220 includes: a first mobility management entity 221 , a second mobility management entity 222 , . . . , a Pth mobility management entity 22P.

It should be noted that the system broadcast channel (System Broadcast Channel, SBc) interface is used for communication between the cell broadcast system server 110 and each MME, and the S1 interface is used for communication between each MME and each evolved base station. For example, the first The mobility management entity 221 communicates with the first eNB 231 , the second eNB 232 , . . . , and the Kth eNB 23K by using the S1 interface.

Wherein, since the MME cannot identify the target device of the broadcast message, each MME needs to send the broadcast message to the eNB corresponding to each MME in the mobility management entity resource pool 220 through the SBc interface and the S1 interface, and each eNB The broadcast message is judged, whether the broadcast message needs to be processed by the current eNB (for example, the first eNB 231 ). If it is determined that the first eNB 231 does not need to process the broadcast message, the first eNB 231 discards the broadcast message, but the message processing amount of the first eNB 231 is increased.

When it is determined that the cell broadcast system server 110 needs to perform network-wide broadcast, each MME will receive a large number of broadcast messages, and each MME will send all received broadcast messages to each evolved base station through the S1 interface, As a result, the S1 interface will be occupied by a large number of invalid broadcast messages, wasting network bandwidth, and at the same time increases the processing overhead of each evolved base station for invalid broadcast messages, resulting in reduced processing performance of the evolved base station.

FIG. 3 shows a structural diagram of the network architecture of the broadcasting service provided by the present application. As shown in Figure 3, in one embodiment, the network of the broadcasting service may be a third generation mobile communication network (3rd Generation Mobile Networks, 3G), or a second generation mobile communication network (2nd Generation Mobile Networks, 2G) . When it is determined that the network of the broadcast service is a 2G network, the network of the broadcast service includes the following equipment: a cell broadcast system server 110 in the CBS, a plurality of base station controllers (for example, a first base station controller 311, a second base station Controller 312, ..., A base station controller 31A, A represents the number of base station controllers, A is an integer greater than or equal to 1), a plurality of base transceiver stations (for example, the first base transceiver station 321, the second base station Transceiver station 322, ..., the Bth base transceiver station 32B, B represents the number of base transceiver stations, B is an integer greater than or equal to 1) and a plurality of terminals (for example, the first terminal 331, the second terminal 332, ... , Cth terminal 33C, C represents the number of terminals, and C is an integer greater than or equal to 1).

When it is determined that the network of the broadcast service is a 3G network, the network of the broadcast service includes the following equipment: a cell broadcast system server 110 in the CBS, a plurality of radio network controllers (Radio network Controller, RNC), and a plurality of 3G base stations And multiple terminals that support 3G.

It should be noted that, in a 2G network or a 3G network, the cell broadcast system server 110 adopts a service area broadcast protocol (Service Area Broadcast Protocol, SABP) interface (or a cellular broadcast service protocol (Cell Broadcast Service Protocol, CBSP) interface, etc.), Communicate with each RNC (or base station controller) respectively, so that the broadcast message sent by the cell broadcast system server 110 can be received by each 3G base station (or, base transceiver station), but each 3G base station (or, base transceiver station) also exists station) need to discard invalid broadcast messages (that is, broadcast messages that do not need to be processed by the 3G base station), which increases the message processing capacity of the 3G base station (or base transceiver station) and reduces the number of messages processed by the 3G base station (or base transceiver station). ) processing performance.

Based on the above problems, the present application proposes a broadcast message sending method, device, entity, electronic device and storage medium. By corresponding to different routing information for different network types, the same broadcast message is sent to multiple target devices, reducing the number of target devices. The amount of information processed can save network bandwidth resources and improve communication performance; moreover, sending the same broadcast message to multiple different target devices can ensure that the notification information can be known by each target device in time to avoid message omission or lag.

Fig. 4 shows a schematic flowchart of the method for sending a broadcast message provided by the present application. The method for sending a broadcast message can be applied to a device for sending a broadcast message, and the device for sending a broadcast message can be set in a broadcast entity. As shown in Fig. 4, in an implementation manner, the method for sending a broadcast message may include the following steps S401 to S403.

In step S401, information to be sent is acquired, and the information to be sent includes geographical area information and notification information.

Wherein, the notification information includes: any one or more of early warning information, public health notification information, and operator management information.

The geographical area information is the information of the area where notification information needs to be obtained, for example, latitude and longitude information, coverage area information corresponding to a certain base station, preset area information around a certain landmark building, and the like. The above notification information and geographic area information are only examples, and can be set according to actual conditions. Other unexplained notification information and geographic area information are also within the scope of protection of this application, and will not be repeated here.

Step S402, searching the area identifier mapping table according to the geographical area information, and determining the network type and routing information corresponding to the geographical area information.

Wherein, the routing information is used to represent the address information of the transmission path between the current device and the target device. The area identifier mapping table includes configuration information corresponding to multiple geographic area information.

In some exemplary implementations, multiple area identification mapping tables may be established according to multiple geographical area information, each geographical area information corresponds to an area identification mapping table, so as to represent the information corresponding to the network equipment included in the geographical area information .

The network equipment that may be established in different geographic areas is different. For example, 2G network equipment and 3G network equipment are built in the first geographic area; 4G network equipment and 5G network equipment are built in the second geographic area; There are 3G network equipment, 4G network equipment and 5G network equipment. According to the region identification mapping tables corresponding to different geographical region information, configuration information corresponding to network devices of different network types can be searched and obtained, which improves the matching accuracy of configuration information in each geographical region and facilitates users to search.

In step S403, a broadcast message is generated and sent according to the network type corresponding to the notification information, routing information, and geographical area information.

Among them, the target device of the broadcast message can be accurately known through the network type corresponding to the routing information and the geographical area information, and the network type corresponding to the geographical area information can make the notification information in the broadcast information more adaptable, ensuring that the broadcast message can Accurately learned by the target device, avoiding message omission or lag.

In this embodiment, by obtaining the to-be-sent information including geographic area information and notification information, it can be learned that notification information needs to be sent to a specific area; based on the geographic area information, the area identifier mapping table can be found to know the different networks corresponding to the geographic area information type, and the routing information corresponding to each network type, which is convenient for further processing of communication information for different network types; according to the network type and notification information corresponding to routing information and geographical area information, generate and send broadcast messages to target devices, Avoid the waste of processing resources of the target device caused by sending broadcast messages multiple times, and send the same broadcast message to multiple target devices by corresponding to different routing information for different network types, reducing the amount of information processing of the target device and saving the network Bandwidth resources improve communication performance; moreover, sending the same broadcast message to multiple different target devices can ensure that the notification information can be known by each target device in time to avoid message omission or lag.

In some exemplary implementations, in step S403, generating and sending a broadcast message according to the network type corresponding to the notification information, routing information, and geographic area information may be implemented in the following manner: determine the code according to the network type corresponding to the geographic area information method; use the encoding method to encode the notification information to generate a broadcast message; send the broadcast message according to the network address of the target device.

Wherein, the routing information includes: the network address of the target device. The encoding method is to use a predetermined method to encode text and/or numbers or other objects into numbers, or to convert information and/or data into prescribed electrical pulse signals.

For example, in a 5G network, Polar Coding (Polar Coding) can be used to encode information; in a 4G network, long codes (such as Turbo codes, etc.) with pseudo-random characteristics can be used to encode information; In the 3G network, the pseudo-random sequence PN Code can be used to encode information.

The network address of the target device may include: an Internet Protocol address (Internet Protocol Address, IP address), and/or, a local area network address. It is convenient to locate and find the target device.

By determining the encoding method according to the network type corresponding to the geographical area information, it can adapt to the transmission requirements of different network types, and use the encoding method corresponding to different network types to encode the notification information to generate a broadcast message, so that the broadcast message can be used in different Transmission in different types of network devices improves the efficiency of information transmission; according to the network address of the target device, sending broadcast messages can speed up the positioning of the target device, so that the target device can obtain the broadcast message as soon as possible to avoid message omission or lag.

Fig. 5 shows a schematic flowchart of the method for sending a broadcast message provided by the present application. The method for sending a broadcast message can be applied to a device for sending a broadcast message, and the device for sending a broadcast message can be set in a broadcast entity. As shown in FIG. 5 , in an implementation manner, the method for sending a broadcast message may include the following steps S501 to S506.

Step S501, acquiring information to be sent.

Wherein, the information to be sent includes geographical area information and notification information.

In some exemplary implementations, acquiring the information to be sent includes: acquiring notification information generated by a network content server, where the notification information includes emergency event information; acquiring geographic area information, where the geographic area information includes location information of the target device, and the target device It is a device that receives emergency information; generates information to be sent based on geographical area information and notification information.

Wherein, the emergency event information is information that the target device needs to know urgently, for example, public safety information or public health information. Internet Content Provider (ICP) can comprehensively provide Internet information to users. ICP is a service provider that is recognized by relevant national laws and regulations and can conduct network operations.

By combining geographical area information and notification information to generate information to be sent, the location information of the target device can be used as the area range, so that the notification information can be known by multiple target devices within the area, and the emergency information can be accelerated. Release speed to improve public safety or public health conditions, so that multiple target devices within a specific area can quickly prepare for the emergency information after learning the emergency information, so as to avoid property damage or improve public health situation.

Step S502, determine the number of the group to be verified according to the geographical area information.

Among them, the number of the group to be verified corresponds to the geographical area information. For example, if a certain geographical area has a wide range, the geographical area can be divided into multiple groups, and each group is numbered to obtain the range of the geographical area. Grouping numbers for multiple sub-regions within .

Through the group number to be verified, the group number of multiple sub-regions can be obtained quickly, or the group number to be verified corresponding to a specific geographical area information can be obtained, so as to speed up the search for devices in different geographical areas, so that in different geographical areas devices can quickly obtain communication services.

Step S503, look up the area identification mapping table according to the group number to be verified.

Wherein, the area identification mapping table includes: preset group number, preset network type and routing information.

By comparing the group number to be verified with the preset group number, it can be known whether the geographical area information corresponding to the group number to be verified is included in the area identification mapping table, and the relevant network information in the geographical area information (for example, network type and network routing information corresponding to the device, etc.), refine the search for network information of information in different geographical regions, and improve the search accuracy of network devices.

Step S504, if it is determined that the preset group number includes the group number to be verified, obtain the network type to be verified.

Wherein, the network type to be verified corresponds to the group number to be verified.

For example, the number of the group to be verified is A02, where "A" represents the specific identifier corresponding to the network type to be searched (for example, the first type of network), and "02" represents the number corresponding to the second area information in the network type. If the preset group number includes A02, it means that the network type to be verified corresponding to A02 is the network type to be searched. In this way, the network type to be verified corresponding to A02 and related network information corresponding to the network type to be verified can be quickly acquired.

Step S505, if it is determined that the network type to be verified is the same as the preset network type, obtain routing information corresponding to the network type to be verified in the area identification mapping table.

Wherein, the preset network type is a predefined network type in the area identifier mapping table, and the area identifier mapping table also stores related information (for example, routing information, etc.) of network devices corresponding to the preset network type.

For example, when it is determined that the preset group number includes A02, and the preset network type corresponding to A02 is equal to the first type of network, the routing information corresponding to the first type of network in the area identification mapping table can be accurately obtained, and through The routing information accurately obtains the network address and related routing information of each network device in the first type of network, and speeds up the search for each network device in different network types.

In some exemplary implementations, the preset network type includes: a first type network; obtaining the routing information corresponding to the network type to be verified in the area identification mapping table includes: determining that the network type to be verified is the first type network In this case, determine that the device type of the target device corresponding to the first type of network includes a base station or a radio network controller (Radio network Controller, RNC); obtain routing information corresponding to the base station, or obtain routing information corresponding to the RNC.

Wherein, when it is determined that the type of the network to be verified is the first type of network, by querying the area identification mapping table, it is possible to know the device types of different target devices corresponding to the first type of network, and obtain the base station or RNC based on different types of networks. routing information, so that the network address of the target device of the broadcast message can be quickly and accurately determined, and the sending efficiency of the broadcast message can be improved.

In some exemplary implementations, the preset network type also includes: a second type network; obtaining the routing information corresponding to the network type to be verified in the area identification mapping table includes: determining that the network type to be verified is the second type network In this case, determining the device type of the target device corresponding to the second type of network includes a mobility management entity MME or an access mobility management function entity AMF; obtaining routing information corresponding to the MME, or obtaining routing information corresponding to the AMF.

Wherein, when it is determined that the network type to be verified is the second type network, by querying the area identification mapping table, it is possible to know the device types of different target devices corresponding to the second type network, and obtain MME or AMF based on different types of networks. routing information, so that the network address of the target device of the broadcast message can be quickly and accurately determined, and the sending efficiency of the broadcast message can be improved.

In some exemplary implementations, acquiring routing information corresponding to the MME includes: determining a target MME set corresponding to the geographical area information, where the target MME set includes multiple target MMEs; and acquiring routing information corresponding to the multiple target MMEs.

Wherein, the geographical area information may correspond to multiple target MMEs, and each MME corresponds to multiple lower-level network devices. By obtaining routing information corresponding to multiple target MMEs, broadcast messages can be sent to multiple target MMEs at the same time, so that The lower-level network devices corresponding to each target MME can quickly and accurately obtain the broadcast message, increase the sending speed of the broadcast message, and avoid information delay.

In step S506, a broadcast message is generated and sent according to the network type corresponding to the notification information, routing information, and geographical area information.

Wherein, the notification information may be processed according to the routing information of network devices corresponding to different types of networks to generate a broadcast message.

For example, the notification information is encoded using a coding method corresponding to the 2G network to generate a first broadcast message; and the target device of the first broadcast message is a base station, so that the base station can process the first broadcast message and obtain the notification information, and send the notification information to each 2G terminal within the coverage of the base station;

Encoding the notification information using a coding method corresponding to the 3G network to generate a second broadcast message; and the target device corresponding to the second broadcast message is an RNC, so that the RNC can process the second broadcast message and obtain the notification information therein, And send the notification information to each access network device managed by the RNC, and enable each access network device to forward the communication information to each 3G terminal within its coverage.

The broadcast method based on TAI is applicable to 4G network or 5G network: use the encoding method corresponding to the 4G network to encode the notification information to generate the third broadcast message; and the corresponding target device of the third broadcast message is the mobile management entity resource pool Each mobility management entity, so that each mobility management entity can process the third broadcast message, obtain the notification information therein, and send the notification information to each lower-level network device managed by each mobility management entity, and enable each The next-level network equipment can forward the communication information to each 4G terminal within its coverage.

The notification information is encoded using a coding method corresponding to the 5G network to generate a fourth broadcast message; and the corresponding target device of the fourth broadcast message is each access mobility management functional entity in the access mobility management functional entity resource pool, so that Each access mobility management functional entity can process the fourth broadcast message, obtain notification information therein, and send the notification information to each lower-level network device managed by each access mobility management functional entity, and make each lower-level network device manage Level-1 network equipment can forward the communication information to each 5G terminal within its coverage.

It should be noted that the above first broadcast message, second broadcast message, third broadcast message and fourth broadcast message are only different in encoding and corresponding target devices, and their message content is the same (all include notification information). For different network types corresponding to different routing information, sending the same broadcast message to multiple target devices can reduce the amount of information processing of target devices, save network bandwidth resources, and improve communication performance.

In some exemplary implementations, the area identification mapping table further includes: a preset broadcasting method; before performing step S505 of obtaining the routing information corresponding to the network type to be verified in the area identification mapping table, the method further includes: Search the area identification mapping table according to the network type to be verified, and obtain the preset broadcast mode.

Wherein, the preset broadcast mode corresponds to the network type to be verified.

The preset broadcast mode can represent the transmission mode of broadcast messages in different types of network equipment. By obtaining the preset broadcast mode corresponding to the network type to be verified, the broadcast message can be adapted to different types of network equipment, and the broadcast message can be improved in different types of network equipment. Type of transmission speed in network devices.

For example, the preset broadcasting manner includes: a broadcasting manner based on a cell identifier, and the broadcasting manner based on a cell identifier corresponds to the first type of network.

The cell identifier is used as a distinguishing identifier in the first type of network, and for different cell identifiers, broadcast messages are sent to user terminals corresponding to each cell in the first type of network, so as to improve the speed and accuracy of cell-level user terminals to obtain the broadcast messages sex.

In some exemplary implementations, the preset broadcasting manner further includes: a broadcasting manner based on the tracking area identifier, and the broadcasting manner based on the tracking area identifier corresponds to the second type of network.

The tracking area identifier is used as a distinguishing identifier in the second type of network, based on the tracking area identifier, to distinguish each network device in the second type of network, so that broadcast messages can be quickly known by each network device in the second type of network, and improve The propagation speed of the broadcast.

The broadcast message sending device according to the present application will be described in detail below with reference to the accompanying drawings. FIG. 6 shows a structural diagram of a device for sending a broadcast message provided by the present application.

As shown in Figure 6, the apparatus 600 for sending a broadcast message includes the following modules: an acquisition module 601 configured to acquire information to be sent, the information to be sent includes geographic area information and notification information; a search module 602 configured to The information searches the area identification mapping table to determine the network type and routing information corresponding to the geographic area information. The routing information is used to represent the address information of the transmission path between the current device and the target device; the processing module 603 is configured to Information and the network type corresponding to the geographical area information, generate and send broadcast messages.

In some exemplary implementations, the routing information includes: the network address of the target device; generating and sending a broadcast message according to the network type corresponding to the notification information, routing information, and geographic area information, including: according to the network type corresponding to the geographic area information , determine the encoding method; use the encoding method to encode the notification information to generate a broadcast message; send the broadcast message according to the network address of the target device.

In some exemplary embodiments, the area identification mapping table includes: a preset group number, a preset network type and routing information; look up the area identification mapping table according to the geographic area information, and determine the network type and routing information corresponding to the geographic area information, Including: determining the group number to be verified according to the geographical area information; searching the area identification mapping table according to the group number to be verified; obtaining the network type to be verified, the network type to be verified and the number to be verified when the preset group number includes the group number to be verified. Corresponding to the verification group number; if it is determined that the network type to be verified is the same as the preset network type, obtain the routing information corresponding to the network type to be verified in the area identifier mapping table.

In some exemplary embodiments, the area identification mapping table further includes: a preset broadcasting method; before obtaining the routing information corresponding to the network type to be verified in the area identification mapping table, it also includes: searching for the area identification mapping according to the network type to be verified Table, obtain the preset broadcast mode, the preset broadcast mode corresponds to the network type to be verified.

In some exemplary implementations, the preset network type includes: a first type network; obtaining the routing information corresponding to the network type to be verified in the area identification mapping table includes: determining that the network type to be verified is the first type network In this case, it is determined that the device type of the target device corresponding to the first type of network includes a base station or a radio network controller RNC; obtaining routing information corresponding to the base station, or obtaining routing information corresponding to the RNC.

In some exemplary implementations, the preset broadcasting manner includes: a broadcasting manner based on a cell identifier, and the broadcasting manner based on a cell identifier corresponds to the first type of network.

In some exemplary implementations, the preset network type also includes: a second type network; obtaining the routing information corresponding to the network type to be verified in the area identification mapping table includes: determining that the network type to be verified is the second type network In this case, determining the device type of the target device corresponding to the second type of network includes a mobility management entity MME or an access mobility management function entity AMF; obtaining routing information corresponding to the MME, or obtaining routing information corresponding to the AMF.

In some exemplary implementations, the preset broadcasting manner further includes: a broadcasting manner based on the tracking area identifier, and the broadcasting manner based on the tracking area identifier corresponds to the second type of network.

In some exemplary implementations, acquiring routing information corresponding to the MME includes: determining a target MME set corresponding to the geographical area information, where the target MME set includes multiple target MMEs; and acquiring routing information corresponding to the multiple target MMEs.

In some exemplary implementations, acquiring the information to be sent includes: acquiring notification information generated by a network content server, where the notification information includes emergency event information; acquiring geographic area information, where the geographic area information includes location information of the target device, and the target device It is a device that receives emergency information; generates information to be sent based on geographical area information and notification information.

In this embodiment, by obtaining the to-be-sent information including geographic area information and notification information through the acquisition module, it can be known that notification information needs to be sent to a specific area; using the search module to search the area identifier mapping table based on the geographic area information, the geographic area information can be obtained Corresponding to different network types, and routing information corresponding to each network type, it is convenient for further processing of communication information for different network types; use the processing module to generate And send a broadcast message to the target device, avoiding the waste of processing resources of the target device caused by sending broadcast messages multiple times, by corresponding to different routing information for different network types, sending the same broadcast message to multiple target devices, reducing the target The number of information processed by the device saves network bandwidth resources and improves communication performance; moreover, sending the same broadcast message to multiple different target devices can ensure that the notification information can be known by each target device in time to avoid message omission or lag.

FIG. 7 shows a structural diagram of the broadcast entity provided by the present application. As shown in FIG. 7 , in an implementation manner, the broadcast entity 700 includes: at least one apparatus 600 for sending a broadcast message in any implementation manner of the present application.

For example, as shown in FIG. 6, the broadcast message sending device 600 includes: an acquisition module 601 configured to acquire information to be sent, the information to be sent includes geographical area information and notification information; a search module 602 configured to obtain information based on the geographical area information Search the area identification mapping table, determine the network type and routing information corresponding to the geographical area information, and the routing information is used to represent the address information of the transmission path between the current device and the target device; the processing module 603 is configured to be based on the notification information, routing information The network type corresponding to the geographical area information generates and sends broadcast messages.

In this embodiment, the information to be sent is acquired by at least one broadcast message sending device, so that the information to be sent can be processed by at least one broadcast message sending device at the same time, and the processing speed of the information to be sent can be accelerated. Among them, the information to be sent includes geographical area information and notification information to be sent; based on the geographical area information, the area identifier mapping table can be searched to know the different network types corresponding to the geographical area information, as well as the routing information corresponding to each network type. Different network types further process the communication information; use the processing module to generate and send broadcast messages to the target device according to the network type and notification information corresponding to the routing information and geographic area information, avoiding the error caused by sending broadcast messages multiple times The waste of processing resources of the target device, by corresponding to different routing information for different network types, sends the same broadcast message to multiple target devices, reduces the amount of information processing of the target device, saves network bandwidth resources, and improves communication performance; and, sending The same broadcast message to multiple different target devices can ensure that the notification information can be known by each target device in time to avoid message omission or lag.

It should be clear that the present application is not limited to the specific configurations and processes described in the above embodiments and shown in the figures. For the convenience and brevity of description, detailed descriptions of known methods are omitted here, and for the specific working process of the above-described systems, modules and units, reference may be made to the corresponding processes in the foregoing method implementations, and details are not repeated here.

FIG. 8 shows a structural diagram of the broadcast message sending system provided by the present application. As shown in FIG. 8 , in an implementation manner, the broadcast message sending system includes the following devices.

Broadcast entity 700, base station controller (Base Station Controller, BSC) 811, base transceiver station (Base Transceiver Station, BTS) 812, fourth type terminal 813; wireless network controller 821, first type base station 822, first type terminal 823: a mobility management entity 831, a second-type base station 832, and a second-type terminal 833; an access mobility management function entity 841, a third-type base station 842, and a third-type terminal 843.

Among them, the mobility management entity 831 includes multiple mobility management entities, and the mobility management entity 831 can also be called a mobility management entity resource pool; the access mobility management function entity 841 includes a plurality of access mobility management function entities, and can also be called an access mobility management entity. The management function entity 841 is an access mobility management function entity resource pool. The second type of base station 832 may include an evolved base station in a 4G network; the third type of base station 842 may include a base station in a 5G network. For example, according to different coverage areas of the base stations, the third type of base stations 842 may include: any one or more of macro base stations, micro base stations, pico base stations, and femto base stations.

Wherein, the broadcast entity 700 may include an acquisition module, a search module and a processing module.

The acquisition module is configured to acquire the information to be sent, and the information to be sent includes geographical area information and notification information.

The search module is configured to save the area identification mapping table, and search the area identification mapping table according to the geographical area information, and determine the network type and routing information corresponding to the geographical area information, and the routing information is used to represent the transmission path between the current device and the target device address information.

The processing module is configured to send a broadcast message to user terminals in a specific area, where the broadcast message includes geographical area information corresponding to the specific area, and the broadcast message can adapt to the transmission requirements of different network types, and adopt different network types to correspond to A message generated by encoding the notification information using the encoding method.

In some exemplary implementations, the broadcast message sent by the broadcast entity 700 also includes a broadcast method, for example, the broadcast method includes a broadcast method based on a cell identifier, and/or a broadcast method based on a tracking area identifier, so as to adapt to different network types transmission needs.

For example, for the situation where the geographical area information exceeds the preset area (for example, a circular area with a radius of 100 kilometers, etc.), the broadcast method can be set to the broadcast method based on the tracking area identification to speed up the network broadcast of the message in a wide range The transmission speed of the device. For the case where the geographic area information is smaller than the preset area range, the broadcast mode can be set to a cell ID-based broadcast mode to improve the accuracy of broadcast message transmission.

According to the different network types corresponding to the geographical area information, the encoding method of the broadcast message is adaptively adjusted, so that the generated broadcast message can adapt to the transmission requirements of network devices of various network types, according to the network address of each network device and Routing information, etc., quickly and accurately transmit notification information to each network device to ensure that notification information can be known to each network device in time to avoid message omission or lag.

FIG. 9 shows a schematic flowchart of a method for broadcasting a broadcast message across the entire network by the broadcast message sending system provided by the present application. As shown in Fig. 9, the method includes the following steps S901 to S904.

In step S901, the broadcast entity 700 acquires a preset broadcast mode.

Wherein, the preset broadcasting method includes: a broadcasting method based on a cell ID (Cell ID), and/or a broadcasting method based on a tracking area identifier (Tracking Area Identifier, TAI).

In step S902, the broadcast entity 700 determines the information of the geographical area where the broadcast message needs to be sent.

For example, based on the Public Land Mobile Network (PLMN), determine the identifier of the broadcast message across the network. The identifier of the broadcast message across the network is used to indicate that the broadcast message to be sent is sent to the preset operator’s jurisdiction All geographic areas within.

Wherein, the preset operator includes multiple network types, for example, a first type network and a second type network. The equipment in the first type of network includes: a base station controller 811 (for example, the base station controller 811 includes: a first BSC and a second BSC), a base transceiver station 812, a fourth type of terminal 813, and a radio network controller 821 (for example, The radio network controller 821 includes: a first RNC and a second RNC), a first type of base station 822, and a first type of terminal 823; the equipment in the second type of network includes: a mobility management entity 831 (for example, the mobility management entity 831 includes: Each mobility management entity in the mobility management entity resource pool), the second type base station 832, the second type terminal 833, and the access mobility management function entity 841 (for example, the access mobility management function entity 841 includes: the access mobility management function entity Each access mobility management functional entity in the resource pool), a third-type base station 842 and a third-type terminal 843.

In addition, the first type of network can use the Cell ID-based broadcast method to send the broadcast message; the second type of network can use the TAI-based broadcast method to send the broadcast message.

For example, the first type of network includes 2G network and/or 3G network; the second type of network includes 3G network and/or 4G network.

In step S903, the broadcast entity 700 processes the notification information according to the first area identifier mapping table in Table 1, and generates a broadcast message to be sent.

Table 1 shows a first area identifier mapping table provided by an embodiment of the present application. Wherein, the configuration information in the first area identifier mapping table includes: a preset broadcast mode, a network type, and an identifier of a target routing network device. The identifier of the target routing network device may also be represented by the network address (for example, IP address, or LAN address, etc.) of the target routing network device.

Table 1 First area identifier mapping table

Default broadcast method	Network Type	Identification of the destination routing network device
Cell ID group 1	2G network	Logo of the first BSC
Cell ID group 2	2G network	Identification of the second BSC
Cell ID group 3	3G network	Identification of the first RNC
Cell ID group 4	3G network	Identification of the second RNC
TAI group 1	4G network	ID of the mobility management entity resource pool
TAI group 2	5G network	Access to the identifier of the mobility management function entity resource pool

For example, the broadcast method based on Cell ID is applicable to 2G network or 3G network: use the coding method corresponding to the 2G network to encode the notification information to generate the first broadcast message; and the corresponding target device of the first broadcast message is the first BSC or The second BSC; the first broadcast message is applicable to the first group or the second group of the Cell ID-based broadcast method; the notification information is encoded in a coding method corresponding to the 3G network to generate a second broadcast message; and the second The corresponding target device of the broadcast message is the first RNC or the second RNC; the second broadcast message is applicable to the third group or the fourth group in the Cell ID-based broadcast mode.

The broadcast method based on TAI is applicable to 4G network or 5G network: use the encoding method corresponding to the 4G network to encode the notification information to generate the third broadcast message; and the corresponding target device of the third broadcast message is the mobile management entity resource pool Each mobile management entity; the third broadcast message is applicable to the first group of the TAI-based broadcast method; the notification information is encoded by a coding method corresponding to the 5G network to generate a fourth broadcast message; and the fourth broadcast message corresponds to the target The device is each access mobility management function entity in the access mobility management function entity resource pool; the fourth broadcast message is applicable to the second group in a TAI-based broadcast manner.

It should be noted that the above first broadcast message, second broadcast message, third broadcast message and fourth broadcast message are only different in encoding and corresponding target devices, and their message content is the same (all include notification information). For different network types corresponding to different routing information, sending the same broadcast message to multiple target devices can reduce the amount of information processing of target devices, save network bandwidth resources, and improve communication performance.

Step S904, the broadcast entity 700 respectively sends the first broadcast message to the base station controller 811; sends the second broadcast message to the radio network controller 821; sends the third broadcast message to the mobility management entity 831; sends the fourth broadcast message to the access mobile Management functional entity 841 .

Wherein, both the first broadcast message and the second broadcast message include the Cell ID, so that the base station controller 811 or the radio network controller 821 can process the broadcast message for the Cell ID.

The third broadcast message includes the first information and the second information, and the fourth broadcast message may also include the first information and the second information, wherein both the first information and the second information include TAI data.

It should be noted that the first information is used to prompt the mobility management entity 831 or the access mobility management function entity 841 to process the broadcast message based on the TAI data; the second information is used to prompt the second type of base station 832 corresponding to the mobility management entity 831 The broadcast message is processed based on the TAI data, or the second information is used to prompt the third type base station 842 corresponding to the access mobility management function entity 841 to process the broadcast message based on the TAI data, and to prompt message processing efficiency.

FIG. 10 shows a schematic flowchart of a method for broadcasting in a certain city by the broadcast message sending system provided by the present application. As shown in Fig. 10, in an implementation manner, the method includes the following steps S1001 to S1004.

In step S1001, the broadcast entity 700 acquires a preset broadcast mode.

Wherein, the preset broadcasting manner includes: a broadcasting manner based on Cell ID, and/or, a broadcasting manner based on TAI.

In step S1002, the broadcasting entity 700 determines the geographical area information that needs to send the broadcast message.

For example, taking city Q as an example, it is determined that a broadcast message needs to be sent to the geographical area under the jurisdiction of city Q, and the identity of the city broadcast message is set. The identity of the city broadcast message is used to indicate that the broadcast message to be sent is sent to the jurisdiction of city Q All geographic areas.

Wherein, the network equipment built in the geographical area under the jurisdiction of the city Q includes: the first BSC, the first RNC, the mobility management entity 831 and the access mobility management function entity 841 . The broadcast message can be sent to the first BSC and/or the first RNC in a broadcast manner based on Cell ID; the broadcast message can be sent to the mobility management entity 831 and/or the access mobility management function entity 841 in a broadcast manner based on TAI.

In step S1003, the broadcast entity 700 processes the notification information according to the second area identifier mapping table in Table 2, and generates a broadcast message to be sent.

The notification information may be early warning information, public health notification information, or operator management information. The notification information above is only an example, and can be specifically set according to the actual situation. Other unexplained notification information is also within the scope of protection of the present application, and will not be repeated here.

Table 2 shows the second area identifier mapping table provided in the implementation manner of the present application. Wherein, the configuration information in the second area identifier mapping table includes: a preset broadcast mode, a network type, and an identifier of a target routing network device. The identifier of the target routing network device may also be represented by a network address (for example, an IP address, or a LAN address, etc.) of the target routing network device.

Table 2 Second area identification mapping table

Default broadcast method	Network Type	Identification of the destination routing network device
Cell ID group 1	2G network	Logo of the first BSC
Cell ID group 2	3G network	Identification of the first RNC
TAI group 1	4G network	ID of the mobility management entity resource pool
TAI group 2	5G network	Access to the identifier of the mobility management function entity resource pool

For example, the broadcast method based on Cell ID is applicable to 2G network or 3G network: use the coding method corresponding to the 2G network to encode the notification information to generate the first broadcast message; and the corresponding target device of the first broadcast message is the first BSC; The first broadcast message is applicable to the first grouping of the broadcast mode based on Cell ID; the notification information is encoded by the encoding mode corresponding to the 3G network to generate the second broadcast message; and the corresponding target device of the second broadcast message is the first RNC; the second broadcast message is applicable to the second group in the Cell ID-based broadcast mode.

The broadcast method based on TAI is applicable to 4G network or 5G network: use the encoding method corresponding to the 4G network to encode the notification information to generate the third broadcast message; and the corresponding target device of the third broadcast message is the mobile management entity resource pool Each mobile management entity; the third broadcast message is applicable to the first group of the TAI-based broadcast method; the notification information is encoded by a coding method corresponding to the 5G network to generate a fourth broadcast message; and the fourth broadcast message corresponds to the target The device is each access mobility management function entity in the access mobility management function entity resource pool; the fourth broadcast message is applicable to the second group in a TAI-based broadcast manner.

It should be noted that the above first broadcast message, second broadcast message, third broadcast message and fourth broadcast message are only different in encoding and corresponding target devices, and their message content is the same (all include notification information). For different network types corresponding to different routing information, sending the same broadcast message to multiple target devices can reduce the amount of information processing of target devices, save network bandwidth resources, and improve communication performance.

Step S1004, the broadcast entity 700 respectively sends the first broadcast message to the first BSC; sends the second broadcast message to the first RNC; sends the third broadcast message to the mobility management entity 831; sends the fourth broadcast message to the access mobility management function entity 841.

Wherein, both the first broadcast message and the second broadcast message include the Cell ID, so as to facilitate the first BSC or the first RNC to process the broadcast message for the Cell ID.

The third broadcast message includes the first information and the second information, and the fourth broadcast message may also include the first information and the second information, wherein both the first information and the second information include TAI data.

It should be noted that the first information is used to prompt the mobility management entity 831 or the access mobility management function entity 841 to process the broadcast message based on the TAI data; the second information is used to prompt the second type of base station 832 corresponding to the mobility management entity 831 The broadcast message is processed based on the TAI data, or the second information is used to prompt the third type base station 842 corresponding to the access mobility management function entity 841 to process the broadcast message based on the TAI data, and to prompt message processing efficiency.

The broadcast entity in this application can transmit information to network devices of different network types in different geographical areas by sending a broadcast message to different network devices. For example, for 2G networks or 3G networks, Cell ID-based broadcasting method; for 4G network or 5G network, TAI-based broadcasting method is adopted to realize the adaptive broadcasting method of broadcasting messages. Moreover, in a 4G network or 5G network, a TAI can include multiple Cell IDs. For large-area broadcasts or network-wide broadcasts, the TAI-based broadcast method can be automatically selected, which can greatly reduce the number of broadcast requests, so that the base station does not need to process A large number of invalid messages improve the information processing performance of the base station and reduce the network bandwidth occupancy rate between various network interfaces.

Fig. 11 shows a structural diagram of an exemplary hardware architecture of a computing device capable of implementing the broadcast message sending method and apparatus according to the present application.

As shown in FIG. 11 , a computing device 1100 includes an input device 1101 , an input interface 1102 , a central processing unit 1103 , a memory 1104 , an output interface 1105 , and an output device 1106 . Wherein, the input interface 1102, the central processing unit 1103, the memory 1104, and the output interface 1105 are connected to each other through the bus 1107, and the input device 1101 and the output device 1106 are respectively connected to the bus 1107 through the input interface 1102 and the output interface 1105, and then connected to the computing device 1100 other component connections.

Exemplarily, the input device 1101 receives input information from the outside, and transmits the input information to the central processing unit 1103 through the input interface 1102; the central processing unit 1103 processes the input information based on computer-executable instructions stored in the memory 1104 to generate Output information, temporarily or permanently store the output information in the memory 1104, and then transmit the output information to the output device 1106 through the output interface 1105; the output device 1106 outputs the output information to the outside of the computing device 1100 for the user to use.

In one embodiment, the computing device shown in FIG. 11 may be implemented as an electronic device, and the electronic device may include: a memory configured to store a program; a processor configured to run the program stored in the memory to Execute the broadcast message sending method described in the above implementation manner.

In one embodiment, the computing device shown in FIG. 11 may be implemented as a broadcast message sending system, and the broadcast message sending system may include: a memory configured to store a program; a processor configured to run the memory The program stored in , so as to execute the broadcast message sending method described in the above-mentioned embodiments.

The above descriptions are merely exemplary implementations of the present application, and are not intended to limit the protection scope of the present application. In general, various embodiments of the present application can be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.

The embodiments of the present application may be realized by a data processor of a mobile device executing computer program instructions, for example in a processor entity, or by hardware, or by a combination of software and hardware. Computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code written in any combination of one or more programming languages or object code.

Any logic flow block diagrams in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions. Computer programs can be stored on memory. The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random-access memory (RAM), optical memory devices and systems (digital versatile disc DVD or CD), etc. Computer readable media may include non-transitory storage media. The data processor can be of any type suitable for the local technical environment, such as but not limited to general purpose computer, special purpose computer, microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (FGPA) and processors based on multi-core processor architectures.

The foregoing has provided a detailed description of exemplary embodiments of the present application, by way of exemplary and non-limiting examples. However, in combination with the accompanying drawings and claims, various modifications and adjustments to the above embodiments will be obvious to those skilled in the art, without departing from the scope of the present invention. Therefore, the proper scope of the present invention will be determined from the claims.

Claims (14)

1. A method for sending a broadcast message, comprising:

   Obtaining information to be sent, where the information to be sent includes geographical area information and notification information;

   Searching an area identification mapping table according to the geographic area information, determining the network type and routing information corresponding to the geographic area information, the routing information being used to represent the address information of the transmission path between the current device and the target device;

   Generate and send a broadcast message according to the notification information, the routing information, and the network type corresponding to the geographical area information.
2. The method according to claim 1, wherein the routing information includes: the network address of the target device;

   The generating and sending a broadcast message according to the network type corresponding to the notification information, the routing information, and the geographical area information includes:

   Determine the encoding method according to the network type corresponding to the geographical area information;

   Encoding the notification information by using the encoding method to generate the broadcast message;

   The broadcast message is sent according to the network address of the target device.
3. The method according to claim 1, wherein the area identification mapping table includes: a preset group number, a preset network type and the routing information;

   The searching the area identifier mapping table according to the geographical area information, and determining the network type and routing information corresponding to the geographical area information include:

   Determine the group number to be verified according to the geographical area information;

   Searching the area identification mapping table according to the group number to be verified;

   When it is determined that the preset group number includes the group number to be verified, obtain a network type to be verified, and the network type to be verified corresponds to the group number to be verified;

   In a case where it is determined that the network type to be verified is the same as the preset network type, obtain routing information corresponding to the network type to be verified in the area identifier mapping table.
4. The method according to claim 3, wherein the area identification mapping table further comprises: a preset broadcast mode;

   Before obtaining the routing information corresponding to the network type to be verified in the area identifier mapping table, the method further includes:

   The area identification mapping table is searched according to the network type to be verified to obtain a preset broadcast mode, and the preset broadcast mode corresponds to the network type to be verified.
5. The method according to claim 4, wherein the preset network type includes: a first type network;

   The obtaining the routing information corresponding to the network type to be verified in the area identification mapping table includes:

   In a case where it is determined that the network type to be verified is the first type network, determine that the device type of the target device corresponding to the first type network includes a base station or a radio network controller RNC;

   Obtain routing information corresponding to the base station, or obtain routing information corresponding to the RNC.
6. The method according to claim 5, wherein the preset broadcasting manner comprises: a broadcasting manner based on a cell identity, and the broadcasting manner based on a cell identity corresponds to the first type of network.
7. The method according to claim 4, wherein the preset network type further comprises: a second type network;

   The obtaining the routing information corresponding to the network type to be verified in the area identification mapping table includes:

   In the case where it is determined that the network type to be verified is the second type network, determine that the device type of the target device corresponding to the second type network includes a mobility management entity MME or an access mobility management function entity AMF;

   Obtain routing information corresponding to the MME, or obtain routing information corresponding to the AMF.
8. The method according to claim 7, wherein the preset broadcasting manner further comprises: a broadcasting manner based on a tracking area identifier, and the broadcasting manner based on a tracking area identifier corresponds to the second type of network.
9. The method according to claim 7, wherein said obtaining the routing information corresponding to the MME comprises:

   Determine a target MME set corresponding to the geographical area information, where the target MME set includes multiple target MMEs;

   Obtain routing information corresponding to multiple target MMEs.
10. The method according to any one of claims 1 to 9, wherein said acquiring information to be sent comprises:

    Acquire the notification information generated by the network content server, where the notification information includes emergency event information;

    Acquire the geographic area information, where the geographic area information includes location information of a target device, where the target device is a device that receives the emergency event information;

    The information to be sent is generated according to the geographical area information and the notification information.
11. A device for sending a broadcast message, comprising:

    An acquisition module configured to acquire information to be sent, where the information to be sent includes geographical area information and notification information;

    The search module is configured to search the area identification mapping table according to the geographical area information, and determine the network type and routing information corresponding to the geographical area information, and the routing information is used to represent the transmission path between the current device and the target device Address information;

    The processing module is configured to generate and send a broadcast message according to the network type corresponding to the notification information, the routing information, and the geographical area information.
12. A broadcasting entity comprising:

    At least one broadcast message sending device as claimed in claim 11.
13. An electronic device comprising:

    one or more processors;

    A memory on which one or more programs are stored, and when the one or more programs are executed by the one or more processors, the one or more processors implement any one of claims 1-10 The sending method of the broadcast message described in item.
14. A readable storage medium, wherein the readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for sending a broadcast message according to any one of claims 1-10 is realized.

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