CN-122027999-A - Public early warning message issuing method and device, electronic equipment and storage medium

CN122027999ACN 122027999 ACN122027999 ACN 122027999ACN-122027999-A

Abstract

The method comprises the steps of distributing broadcast alarm identification and CBE information code to public early warning information to be released, sending an early warning information delivery request comprising the CBE information code and the broadcast alarm identification to a cell broadcast center function CBCF, enabling CBCF to generate a message sequence number corresponding to the early warning information according to the CBE information code based on the early warning information delivery request, forwarding the early warning information carrying the message sequence number and the broadcast alarm identification to a corresponding base station through an access and mobility management function AMF, completing broadcasting of the early warning information after the base station performs rejection operation on the early warning information based on the message sequence number and the broadcast alarm identification in the received early warning information, wherein key distinguishing bits of a message code field in the message sequence number directly multiplex the CBE information code. The public early warning message publishing method and device can improve the accuracy of public early warning message publishing.

Inventors

Hong Binting
XIE SHENGDONG
WANG MENG
ZHAO QIHENG
LI QIN
WANG TIANYUAN
LIU YANG
LI WENQI
GUO XUJING
MA HONGYUAN
LI DAN
ZHOU WEI

Assignees

中国移动通信集团设计院有限公司
中国移动通信集团有限公司

Dates

Publication Date: 20260512
Application Date: 20251226

Claims (10)

1. A method for issuing a public warning message, applied to a cell broadcast entity CBE, the method comprising: Distributing a broadcast alarm identifier and a CBE information code to public early warning messages to be issued, and sending an early warning message delivery request comprising the CBE information code and the broadcast alarm identifier to a cell broadcast center function CBCF, wherein the CBE information code is a unique identifier for distinguishing different early warning messages, and the broadcast alarm identifier is an early warning type of the early warning message; And enabling CBCF to generate a message sequence number corresponding to the early warning message based on the early warning message delivery request according to the CBE information code, forwarding the early warning message carrying the message sequence number and the broadcast alarm identifier to a corresponding base station through accessing a mobility management function AMF, and completing broadcasting of the early warning message after the base station performs a duplicate removal operation on the early warning message based on the received message sequence number and the broadcast alarm identifier in the early warning message, wherein key distinguishing bits of a message code field in the message sequence number directly multiplex the CBE information code.
2. The method of claim 1, wherein sending an early warning message delivery request including the CBE information encoding and the broadcast alert identifier to the CBCF comprises: When the public early warning message to be issued is a common level early warning message, sequentially sending the early warning message delivery requests to different CBCF by adopting a round-robin mechanism, wherein different common level early warning messages have different CBE information codes, and different common level early warning messages have different broadcast alarm identifications; And when the public early warning message to be issued is the highest-level early warning message, sending the early warning message delivery request to all CBCF, wherein each highest-level early warning message sent to each CBCF has the same CBE information code and the same broadcast alarm identifier.
3. The method of claim 1, wherein an additional cell is provided in an alert item of the early warning message delivery request, the additional cell being configured to provide a uniform CBE information encoding for the CBCF to populate key differentiation bits of a message code field in the message sequence number.
4. The method of claim 3 wherein the supplemental cells are configured to provide uniform CBE information encoding and control bit information for the CBCF such that the CBCF fills in CBE information encoding, emergency alert control bits, and pop operation control bits of a message code field in the message sequence number.
5. A method for issuing a public warning message, applied to a cell broadcast center function CBCF, the method comprising: acquiring an early warning message delivery request which is sent by a cell broadcasting entity CBE and comprises CBE information codes and broadcast warning identifications, wherein the CBE information codes and the broadcast warning identifications are uniformly distributed by the CBE, the CBE information codes are unique identifications for distinguishing different early warning messages, and the broadcast warning identifications are early warning types of the early warning messages; Generating a message sequence number corresponding to the early warning message according to the CBE information code based on the early warning message delivery request, wherein key distinguishing bits of a message code field in the message sequence number directly multiplex the CBE information code; and forwarding the early warning message carrying the message sequence number and the broadcast alarm identifier to a corresponding base station through an access and mobility management function (AMF), so that the base station completes broadcasting of the early warning message after performing repeat removal operation on the early warning message based on the received message sequence number and the broadcast alarm identifier in the early warning message.
6. The method of claim 5, wherein generating a message sequence number corresponding to the early warning message from the CBE information encoding based on the early warning message delivery request comprises: If the early warning message is determined to be a common-level early warning message based on the received early warning message delivery request, generating a message sequence number corresponding to the common-level early warning message according to the CBE information code, wherein the message sequence numbers generated by the same common-level early warning message in different CBCF are the same; If the early warning message is determined to be the highest-level early warning message based on the received early warning message delivery request, generating a message sequence number corresponding to the highest-level early warning message according to the CBE information code, wherein different CBCF generate the same message sequence number for the same highest-level early warning message.
7. A public warning message issuing apparatus, applied to a cell broadcast entity CBE, comprising: the sending module is used for distributing a broadcast alarm identifier and a CBE information code to public early warning messages to be issued and sending an early warning message delivery request comprising the CBE information code and the broadcast alarm identifier to the cell broadcast center function CBCF, wherein the CBE information code is a unique identifier for distinguishing different early warning messages, and the broadcast alarm identifier is an early warning type of the early warning message; And enabling CBCF to generate a message sequence number corresponding to the early warning message based on the early warning message delivery request according to the CBE information code, forwarding the early warning message carrying the message sequence number and the broadcast alarm identifier to a corresponding base station through accessing a mobility management function AMF, and completing broadcasting of the early warning message after the base station performs a duplicate removal operation on the early warning message based on the received message sequence number and the broadcast alarm identifier in the early warning message, wherein key distinguishing bits of a message code field in the message sequence number directly multiplex the CBE information code.
8. A public warning message issuing apparatus, applied to a cell broadcast center function CBCF, comprising: The system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring an early warning message delivery request which is sent by a Cell Broadcasting Entity (CBE) and comprises CBE information codes and broadcasting alarm identifiers, wherein the CBE information codes and the broadcasting alarm identifiers are uniformly distributed by the CBE, the CBE information codes are unique identifiers for distinguishing different early warning messages, and the broadcasting alarm identifiers are early warning types of the early warning messages; the generation module is used for generating a message sequence number corresponding to the early warning message according to the CBE information code based on the early warning message delivery request, wherein key distinguishing bits of a message code field in the message sequence number are directly multiplexed with the CBE information code; And the forwarding module is used for forwarding the early warning message carrying the message sequence number and the broadcast alarm identifier to a corresponding base station through an access and mobility management function (AMF), so that the base station completes broadcasting of the early warning message after performing the duplicate removal operation on the early warning message based on the received message sequence number and the broadcast alarm identifier in the early warning message.
9. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; a memory for storing a computer program; a processor for implementing the method of any one of claims 1-4 or the method of any one of claims 5-6 when executing a program stored on a memory.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when executed by a processor, implements the method of any of claims 1-4 or implements the method of any of claims 5-6.

Description

Public early warning message issuing method and device, electronic equipment and storage medium Technical Field The disclosure relates to the technical field of core networks, and in particular relates to a public warning message publishing method, a public warning message publishing device, electronic equipment and a storage medium. Background The Public early warning system (PWS, public WARNING SYSTEM) is a key system for guaranteeing Public safety in a 5G core network, and fig. 1 is a network architecture schematic diagram of the Public early warning system, and it can be seen that the network architecture comprises network elements such as an access and mobility management function (AMF, ACCESSAND MOBILITY MANAGEMENT FUNCTION), a cell broadcast center function (CBCF, cell Broadcast Center Function), a cell broadcast entity (CBE, cell Broadcast Entity) and the like, the network elements cooperatively realize early warning information release by standardized interfaces, wherein CBCF is used as a key control network element, the network elements are communicated with the CBE by CAP (Common Alerting Protocol, public alarm protocol) interfaces, are communicated with the AMF by N50 interfaces, and forward early warning information to a next generation radio access network (NG-RAN, next Generation Radio Access Network) by means of communication services of the AMF after receiving broadcast requests issued by the cell entity (CBE, cell Broadcast Entity), and finally reach a user terminal to finish early warning in a specific area. To improve system reliability and load carrying capacity CBCF is typically deployed in a 1+1 master or CBCF resource pool (CBCF Pool) load sharing mode. However, the existing deployment and message processing mechanisms have technical defects, so that public warning information release is not accurate and efficient enough, on one hand, for common-level warning messages, CBE adopts a round-robin mechanism to send messages to CBCF in CBCF resource pools, CBCF independently generate message Sequence Numbers (SN) and have no coding collaboration mechanism, SN repetition of different warning messages is easy to occur, a base station receives and misjudges repeated messages and rejects part of warning messages finally, on the other hand, for highest-level warning messages, CBE needs to synchronously send messages to CBCF of all normal connections in the resource pools, each CBCF independently generates SN has differences, base station judges different messages and repeatedly broadcasts, so that a great amount of air interface resources are occupied, and user terminals can receive the same warning for many times, and the using experience is affected. The above problems severely restrict the accuracy of public warning information release. Disclosure of Invention The disclosure provides a public early warning message issuing method, a public early warning message issuing device, electronic equipment and a storage medium, so as to solve the problem that public early warning information issuing is inaccurate. In a first aspect, the present disclosure provides a method for issuing a public warning message, applied to a cell broadcast entity CBE, the method including: Distributing a broadcast alarm identifier and a CBE information code to public early warning messages to be issued, and sending an early warning message delivery request comprising the CBE information code and the broadcast alarm identifier to a cell broadcast center function CBCF, wherein the CBE information code is a unique identifier for distinguishing different early warning messages, and the broadcast alarm identifier is an early warning type of the early warning message; And enabling CBCF to generate a message sequence number corresponding to the early warning message based on the early warning message delivery request according to the CBE information code, forwarding the early warning message carrying the message sequence number and the broadcast alarm identifier to a corresponding base station through accessing a mobility management function AMF, and completing broadcasting of the early warning message after the base station performs a duplicate removal operation on the early warning message based on the received message sequence number and the broadcast alarm identifier in the early warning message, wherein key distinguishing bits of a message code field in the message sequence number directly multiplex the CBE information code. Optionally, sending an early warning message delivery request including the CBE information code and the broadcast alert identifier to the CBCF includes: When the public early warning message to be issued is a common level early warning message, sequentially sending the early warning message delivery requests to different CBCF by adopting a round-robin mechanism, wherein different common level early warning messages have different CBE information codes, and different common level early warning messag