CN116939567A - Emergency communication method, device, system, equipment and medium - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The application provides an emergency communication method, an emergency communication device, an emergency communication system, emergency communication equipment and an emergency communication medium, which comprise the following steps: the emergency core network receives a call request, wherein the call request comprises a calling user number and a called user number; the emergency core network inquires the user number of the registered emergency core network in the emergency area stored in the database of the emergency core network according to the number of the called user, and judges whether the type of the calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition when the called user number is determined to be the user number in the emergency area; and if the current service capacity of the emergency core network meets the local communication connection establishment condition, the emergency core network establishes the local communication connection between the calling user and the called user. The emergency communication network solves the problem that the emergency communication network in the prior art can not provide emergency communication services for masses of people suffering from disasters at the same time.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an emergency communication method, apparatus, system, device, and medium.
Background
When the disaster comes, the time is striven for rescue, and the life and property of people are saved as the first requirement. Emergency communication is an important means for handling information transmission, commanding and dispatching when an emergency is faced, and plays a key role in disaster prevention, disaster reduction and disaster management.
Currently, when a major disaster occurs, emergency communication security mainly depends on satellite communication. And the operators move a plurality of respective emergency communication vehicles and emergency communication unmanned aerial vehicles, and the emergency communication vehicles and the emergency communication unmanned aerial vehicles are connected with the public network core network of the operators through satellite links to form an emergency communication network.
However, the existing emergency communication network needs to realize communication by means of satellites, so that the cost is relatively high, the service capacity is small, and the communication bandwidth rate is low, so that the existing emergency communication network cannot provide emergency communication service for mass people at the same time.
Disclosure of Invention
The application provides an emergency communication method, an emergency communication device, an emergency communication system, emergency communication equipment and an emergency communication medium, which are used for solving the problem that an emergency communication network cannot simultaneously provide emergency communication service for masses of disaster-stricken people because the emergency communication network needs to realize communication by means of satellites in the prior art.
In a first aspect, the present application provides an emergency communication method, applied to an emergency core network, including:
receiving a call request, wherein the call request comprises a calling user number and a called user number;
inquiring a user number registered in the emergency core network in an emergency area stored in a database of the emergency core network according to the called user number, and judging whether the type of a calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition when the called user number is determined to be the user number in the emergency area;
and if the current service capacity of the emergency core network meets the local communication connection establishment condition, establishing local communication connection between the calling user and the called user.
In a specific embodiment, the determining whether the type of the calling subscriber corresponding to the calling subscriber number and the current service capacity of the emergency core network meet the local communication connection establishment condition includes:
judging whether the type of the calling user is a rescue type, and if the type of the calling user is the rescue type, meeting the local communication connection establishment condition.
In one specific embodiment, the method further comprises:
if the type of the calling user is judged to be not the rescue type, judging whether the current service capacity of the emergency core network reaches a preset threshold value or not;
and if the current service capacity of the emergency core network is judged not to reach the preset threshold, the local communication connection establishment condition is met.
In one specific embodiment, the method further comprises:
if the current service capacity of the emergency core network reaches the preset threshold value, determining the user grade of the calling user, and determining the sequence of the call request in a call sequencing queue according to the user grade of the calling user and the call time in the call request;
and adding the call request to the call sequencing queue according to the sequence.
In one specific embodiment, the method further comprises:
receiving a registration request sent by user equipment of the emergency area, wherein the registration request comprises a number to be registered and user data information;
and according to the registration request, carrying out registration processing on the number to be registered, releasing registration authentication, and storing the number to be registered and the user data information in a database of the emergency core network.
In a specific embodiment, the establishing a local communication connection between the calling user and the called user includes:
inquiring a database of the emergency core network, acquiring user data information corresponding to the called user number, and carrying out localized call processing and message routing processing between the calling user and the called user according to the user data information.
In a specific embodiment, after the local communication connection between the calling user and the called user is established, the method further includes:
and reducing the user grade of the calling user.
In one specific embodiment, the method further comprises:
and refusing to establish call connection and generating a pacifying short message to be sent to user equipment corresponding to the calling number when the called user number is determined to be not a number in the emergency area and not an emergency rescue number in the non-emergency area.
In one specific embodiment, the method further comprises:
if the called number is determined not to be the number of the emergency area and is the emergency rescue number of the non-emergency area, when the current service capacity of the emergency core network does not meet the threshold value, establishing communication connection between the calling user and the called user through a satellite link system.
In a second aspect, the present application provides an emergency communication apparatus comprising:
the receiving module is used for receiving a call request, wherein the call request comprises a calling user number and a called user number;
the processing module is used for inquiring the user number registered in the emergency area stored in the database of the emergency core network according to the called user number, and judging whether the type of the calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition when the called user number is determined to be the user number in the emergency area;
and the processing module is further used for establishing the local communication connection between the calling user and the called user if the current service capacity of the emergency core network meets the local communication connection establishment condition.
In a specific embodiment, the processing module is specifically configured to:
judging whether the type of the calling user is a rescue type, and if the type of the calling user is the rescue type, meeting the local communication connection establishment condition.
In a specific embodiment, the processing module is further configured to:
If the type of the calling user is judged to be not the rescue type, judging whether the current service capacity of the emergency core network reaches a preset threshold value or not;
and if the current service capacity of the emergency core network is judged not to reach the preset threshold, the local communication connection establishment condition is met.
In a specific embodiment, the processing module is further configured to:
if the current service capacity of the emergency core network reaches the preset threshold value, determining the user grade of the calling user, and determining the sequence of the call request in a call sequencing queue according to the user grade of the calling user and the call time in the call request;
and adding the call request to the call sequencing queue according to the sequence.
In a specific embodiment, the processing module is further configured to:
receiving a registration request sent by user equipment of the emergency area, wherein the registration request comprises a number to be registered and user data information;
and according to the registration request, carrying out registration processing on the number to be registered, releasing registration authentication, and storing the number to be registered and the user data information in a database of the emergency core network.
In a specific embodiment, the processing module is specifically configured to:
inquiring a database of the emergency core network, acquiring user data information corresponding to the called user number, and carrying out localized call processing and message routing processing between the calling user and the called user according to the user data information.
In a specific embodiment, the processing module is further configured to:
and reducing the user grade of the calling user after the local communication connection between the calling user and the called user is established.
In a specific embodiment, the processing module is further configured to:
and refusing to establish call connection and generating a pacifying short message to be sent to user equipment corresponding to the calling number when the called user number is determined to be not a number in the emergency area and not an emergency rescue number in the non-emergency area.
In a specific embodiment, the processing module is further configured to:
if the called number is determined not to be the number of the emergency area and is the emergency rescue number of the non-emergency area, when the current service capacity of the emergency core network does not meet the threshold value, establishing communication connection between the calling user and the called user through a satellite link system.
In a third aspect, the present application provides an emergency communication system comprising: an emergency base station, a satellite link system and an emergency communication apparatus as described in the second aspect.
In a fourth aspect, the present application provides an electronic device comprising:
a processor, a memory, a communication interface;
the memory is used for storing executable instructions executable by the processor;
wherein the processor is configured to perform the emergency communication method of the first aspect via execution of the executable instructions.
In a fifth aspect, the present application provides a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the emergency communication method of the first aspect.
The application provides an emergency communication method, an emergency communication device, an emergency communication system, emergency communication equipment and an emergency communication medium, wherein an emergency core network receives a call request, and the call request comprises a calling user number and a called user number; the emergency core network inquires the user number of the registered emergency core network in the emergency area stored in the database of the emergency core network according to the number of the called user, and judges whether the type of the calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition when the called user number is determined to be the user number in the emergency area; and if the current service capacity of the emergency core network meets the local communication connection establishment condition, establishing the local communication connection between the calling user and the called user. Compared with the emergency communication network in the prior art, the communication is realized by means of satellites, the local communication between the calling user and the called user in the emergency area can be realized by means of the emergency core network without depending on satellites, and the problems that the existing emergency communication network is relatively high in cost, small in service capacity and low in communication bandwidth rate due to the fact that the communication is realized by means of satellites are solved, and the existing emergency communication network cannot simultaneously provide emergency communication service for mass disaster-stricken people are solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a system block diagram of an emergency communication method provided by the application;
FIG. 2 is a schematic flow chart of an embodiment of an emergency communication method according to the present application;
fig. 3 is a schematic diagram of a call flow of a 4G VoLTE user;
fig. 4 is a schematic flow chart of a second embodiment of an emergency communication method provided by the present application;
fig. 5 is a schematic flow chart of a third embodiment of an emergency communication method provided by the application;
fig. 6 is a schematic diagram of a 4G VoLTE user registration flow;
fig. 7 is a schematic structural diagram of an embodiment of an emergency communication apparatus according to the present application;
fig. 8 is a schematic structural diagram of an electronic device according to the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which are made by a person skilled in the art based on the embodiments of the application in light of the present disclosure, are intended to be within the scope of the application.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
First, the terms involved in the present application will be explained:
IP multimedia subsystem (IP Multimedia Core Network Subsystem, abbreviated IMS): based on the initial session protocol (Session Initial Protocol, SIP for short), SIP is an application-layer protocol that creates, modifies, and terminates sessions between two or more parties. The main functional entities in IMS include: a User Equipment (UE) and a call control entity and a home subscriber server (Home Subscriber Server, HSS) for centrally managing subscriber subscription data.
Call control entity (Serving Call Session Control Function, CSCF for short): the IP multimedia subsystem is a functional entity in the IP multimedia subsystem, is the core of the whole IMS network and is mainly responsible for the control of functions such as registration and authentication, session control, routing processing, network management, charging and the like which are related to user services. The CSCFs are divided into proxy call session control entities (Proxy Call Session Control Function, P-CSCF for short), serving call session control entities (Serving Call Session Control Function, S-CSCF for short), and query call session control entities (Interrogating Call Session Control Function, I-CSCF for short).
Registration and authentication: registering for completing authentication and authorization of the user, and storing user data information for providing various network services for the user later; authentication is to use different algorithms to determine the validity of the access user.
Session control: including session establishment, session refresh, session release, session maintenance, emergency call management, and the like. For example, when a user dials an emergency call number 110, 120, 119, etc., the system will automatically recognize the call as an emergency call and forward the request to the emergency call center for processing.
And (3) routing: when a user initiates a service request, the user is responsible for searching a proper route in a network and forwarding a message; in addition, it supports various flexible routing policies such as failed route reselection, routing by location information, routing by time/percentage, etc., to meet the operator's need for flexible policy routing.
P-CSCF: is a unified entry point for the IMS visited network. All session messages originating from and terminating at the IMS terminal pass through the P-CSCF. The main functions are forwarding a SIP registration request sent by the UE to the I-CSCF, determining the I-CSCF by the domain name provided by the UE, forwarding a SIP message sent by the UE to the S-CSCF, and determining the S-CSCF by the P-CSCF when the UE initiates a registration procedure.
I-CSCF: is the entry point to the IMS home network. During registration, the I-CSCF selects an S-CSCF for the user by querying the HSS. During a call, a call to the IMS network is first routed to the I-CSCF, which retrieves the S-CSCF address registered by the user from the HSS, and routes the message to the S-CSCF. The main functions are a registration function and a message flow processing function, wherein the registration function is to assign a certain S-CSCF to a user to execute SIP registration, and the message flow processing function is to acquire the address of the S-CSCF from the HSS, forward the SIP request and route the SIP request transmitted by other networks to the S-CSCF.
S-CSCF: in IMS network session control, it receives the register request from visit network via P-CSCF, to match with HSS to process user authentication. And downloads the service data signed by the user from the HSS. The main functions are a registration function and a message flow processing function, wherein the registration function is to make the registration request effective through the HSS after receiving the registration request. The message flow processing function is to control registered session terminals and can be used as Proxy-Server. After receiving the request, internal processing or forwarding is performed, and the request can also be used as UA to interrupt or initiate SIP transaction.
When a major disaster occurs, how to quickly recover the emergency call requirement of the disaster-stricken area, so that the masses of the disaster-stricken masses can dial the help call for the first time, and the high-efficiency rescue communication between the masses of the disaster-stricken masses and rescue workers is realized, thereby becoming a serious problem in the disaster-fighting rescue work. At present, when a major disaster occurs, public network communication of an operator is often severely damaged or even completely paralyzed, so that communication cannot be provided, if communication is needed, communication can be realized only by means of satellites, but satellite communication is high in cost, small in service capacity and low in communication bandwidth rate, so that the existing emergency communication network by means of satellites cannot simultaneously provide emergency communication services for wide disaster-stricken people.
Based on the technical problems, the technical conception process of the application is as follows: for users in the emergency area, how to realize local communication between the calling user and the called user in the emergency area without the help of satellites.
The emergency communication scheme of the present application will be described in detail.
Exemplary, fig. 1 is a system structure diagram of an emergency communication method according to the present application, and as shown in fig. 1, the system structure may include: emergency base station 101, emergency communication device 102, satellite link system 103, and user equipment. Wherein the emergency base station 101 and the emergency communication device 102 constitute an emergency core network 112. In addition, fig. 1 shows four user devices, user device 104, user device 105, user device 106, and user device 107, respectively, by way of example. The user equipment 104 is user equipment of which the type of the calling user in the emergency area is rescue type; user equipment 105 is user equipment in the emergency area where the type of calling user is not rescue type; the user equipment 106 is the user equipment of the called user in the emergency area; user device 107 is a user device whose corresponding user number is not a user number in an emergency area, and is an emergency rescue number in a non-emergency area. In other words, the user equipment 104, the user equipment 105 and the user equipment 106 are covered by the emergency core network, and the user equipment 107 is not covered by the emergency core network. In addition, it should be noted that, in each embodiment, the user equipment initiates the registration request to the emergency core network and the emergency core network performs the related processing, which is equivalent to the specific operation performed by the emergency communication device in the emergency core network.
In addition, satellite link system 103 includes satellite 108, satellite ground station 109, emergency command center 110, and operator network 111.
It should be noted that, fig. 1 is only a schematic structural diagram of a system of an emergency communication method provided by an embodiment of the present application, and the embodiment of the present application does not limit the actual forms of the various devices included in fig. 1, nor limit the interaction modes between the devices in fig. 1, and in a specific application of the scheme, the system may be set according to actual requirements.
The technical scheme of the application is described in detail through specific embodiments. It should be noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 2 is a schematic flow chart of an embodiment of an emergency communication method provided by the application. Referring to fig. 2, the emergency communication method specifically includes the following steps:
step S201: a call request is received, the call request including a calling subscriber number and a called subscriber number.
In this embodiment, in combination with the system structure shown in fig. 1, after the user equipment in the emergency area searches for the emergency core network established based on the emergency area, a registration request is actively initiated to the emergency core network, and once the user equipment is registered, the emergency core network stores relevant information of the registered user, for example: registered number and user data information. When a subscriber in the emergency area needs to communicate with a called subscriber, the call request may be sent to the emergency core network, where the call request includes a calling subscriber number and a called subscriber number.
Step S202: and inquiring the user number of the registered emergency core network in the emergency area stored in the database of the emergency core network according to the number of the called user, and judging whether the type of the calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition when the number of the called user is determined to be the user number in the emergency area.
Since the registered number and user data information are already stored in the emergency core network, they are stored in the database of the emergency core network. Therefore, when the emergency core network receives the call request of the user, the emergency core network queries the user number of the registered emergency core network in the emergency area stored in the database of the emergency core network according to the called user number in the call request. If the number of the called user is stored in the database of the emergency core network, the called user number is the user number in the emergency area, and whether the type of the calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition can be further judged.
Step S203: and if the current service capacity of the emergency core network meets the local communication connection establishment condition, establishing the local communication connection between the calling user and the called user.
When the emergency core network determines that the current service capacity of the emergency core network meets the local communication connection establishment condition, the emergency core network queries a database of the emergency core network, acquires user data information corresponding to the called user number, and performs localized call processing and message routing processing between a calling user and a called user according to the user data information.
For example, taking the calling user as the 4G VoLTE user as an example, fig. 3 is a call flow diagram of the 4G VoLTE user, as shown in fig. 3, the calling user initiates a call request INVITE through the user equipment UE, the INVITE is sent to the S-CSCF through the session border controller (Session Border Controller, abbreviated as SBC), the S-CSCF determines the corresponding S-CSCF by querying the HSS, the S-CSCF sends the INVITE to the S-CSCF corresponding to the called user, and the S-CSCF sends the INVITE to the user equipment UE of the called user through the SBC. When the user equipment UE of the called user receives the INVITE, an INVITE200 is returned, indicating that the called user receives the INVITE sent by the calling user. The user equipment UE of the calling user returns an ACK indicating an acknowledgement final response after receiving the INVITE 200. When the user equipment UE of the called user receives the ACK, the call starts.
Taking the calling party of 5G VoNR as an example: the call flow is similar to the call flow of the 4G VoLTE subscriber. For the 4G non-VoLTE user and the 5G non-VoNR user, the call request can fall back to a mobile switching center (Mobile Switching Center, MSC for short) in the emergency core network for processing, and the corresponding call flow is completed according to the user data information stored in the database of the emergency core network.
Taking the 3G user as an example: the call request is processed by a mobile switching center (Mobile Switching Center, MSC for short) in the emergency core network, and the corresponding call flow is completed according to the user data information stored in the database of the emergency core network.
In this embodiment, the emergency core network receives a call request, where the call request includes a calling subscriber number and a called subscriber number; the emergency core network inquires the user number of the registered emergency core network in the emergency area stored in the database of the emergency core network according to the number of the called user, and judges whether the type of the calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition when the called user number is determined to be the user number in the emergency area; and if the current service capacity of the emergency core network meets the local communication connection establishment condition, establishing the local communication connection between the calling user and the called user. Compared with the emergency communication network in the prior art, the communication is realized by means of satellites, the local communication between the calling user and the called user in the emergency area can be realized by means of the emergency core network without depending on satellites, and the problems that the existing emergency communication network is relatively high in cost, small in service capacity and low in communication bandwidth rate due to the fact that the communication is realized by means of satellites are solved, and the existing emergency communication network cannot simultaneously provide emergency communication service for mass disaster-stricken people are solved.
Fig. 4 is a schematic flow chart of a second embodiment of an emergency communication method provided by the present application, and based on the embodiment shown in fig. 2, referring to fig. 4, a specific implementation manner of the step 202 and the step 203 is as follows:
step S401: and according to the called user number, inquiring the user number of the registered emergency core network in the emergency area stored in the database of the emergency core network, and determining the called user number as the user number in the emergency area.
The emergency core network inquires the user number of the registered emergency core network in the emergency area stored in the database of the emergency core network according to the called user number in the call request, and the registered number and the user data information are stored in the database of the emergency core network. Therefore, if the number of the called user is stored in the database of the emergency core network, the called user number is indicated as the user number in the emergency area.
Step S402: judging whether the type of the calling user is a rescue type.
If yes, the local communication connection establishment condition is satisfied, and step S403 is executed; if not, step S404 is performed.
In order to achieve effective rescue in the golden rescue time in consideration of the coverage area and the relative bearing capacity limitation of the emergency core network when a disaster comes, the emergency core network stores the user number and user data information of the rescue personnel after the emergency core network registers, and preferably sets the user level corresponding to the user number of the rescue personnel to a relatively high level, for example, a user level higher than that corresponding to the user number of the common disaster crowd. Namely, setting the user grade of the rescue workers higher than the user grade of the disaster-stricken people so as to distinguish the rescue workers from the disaster-stricken people.
Because the users in the emergency area can be divided into disaster-stricken people and rescue workers, the types of the user numbers of the rescue workers in the emergency area are corresponding rescue types, and the types of the user numbers of the disaster-stricken people in the emergency area are not rescue types.
When the emergency core network determines that the called user number is the user number in the emergency area, the emergency core network can judge whether the type of the calling user is the rescue type according to the user grade of the calling user. If the emergency core network judges that the type of the calling user is a rescue type according to the corresponding relation between the user number of the calling user and the user number and the user grade stored in the emergency core network database, because the emergency core network needs to meet the communication between rescue workers and the disaster-stricken people or the communication between the rescue workers and the rescue workers, and the number of the rescue workers in the emergency area is smaller than the preset threshold value of the emergency core network, the current rescue condition meets the local communication connection establishment condition, and the step S403 is executed; if the emergency core network determines that the type of the calling subscriber is not the rescue type, step S404 is executed.
Step S403: inquiring a database of an emergency core network, acquiring user data information corresponding to the called user number, and carrying out localized call processing and message routing processing between a calling user and a called user according to the user data information. And (5) ending.
When the emergency core network judges that the type of the calling user is a rescue type and meets the local communication connection establishment condition, the emergency core network inquires a database of the emergency core network, acquires user data information corresponding to the called user number, and performs localized call processing and message routing processing between the calling user and the called user according to the user data information.
Step S404: and judging whether the current service capacity of the emergency core network reaches a preset threshold value.
If not, the local communication connection establishment condition is satisfied, and step S405 is executed; if so, step S407 is performed.
The emergency core network judges that the type of the calling user is not a rescue type, namely the calling user is a disaster-stricken crowd, and the number of the disaster-stricken crowd in the emergency area is far greater than a preset threshold of the emergency core network, so that the emergency core network judges whether the current service capacity of the emergency core network reaches the preset threshold at the moment; if it is determined that the current service capacity of the emergency core network does not reach the preset threshold, it is indicated that the emergency core network can still establish the local communication connection between the calling subscriber and the called subscriber in the call request, that is, the local communication connection establishment condition is satisfied, and step S405 and step S406 are executed at this time. If the emergency core network determines that the current service capacity of the emergency core network reaches the preset threshold, which indicates that the emergency core network cannot establish the local communication connection between the calling user and the called user in the call request at the moment, step S407 and step S408 are executed.
Step S405: inquiring a database of an emergency core network, acquiring user data information corresponding to the called user number, and carrying out localized call processing and message routing processing between a calling user and a called user according to the user data information.
Step S406: the user class of the calling user is reduced. And (5) ending.
After the emergency core network judges that the type of the calling user is not the rescue type and judges that the current service capacity of the emergency core network does not reach a preset threshold value, the emergency core network reduces the user grade of the calling user after the emergency core network establishes the local communication connection between the calling user and the called user, namely after the emergency core network performs the localization call processing and the message routing processing between the calling user and the called user.
Step S407: determining the user grade of the calling user, and determining the order of the call requests in the call sequencing queue according to the user grade of the calling user and the call time in the call requests.
When the emergency core network judges that the current service capacity of the emergency core network reaches a preset threshold value, the emergency core network determines the user grade of the calling user, and determines the sequence of the call requests in the call sequencing queue according to the user grade of the calling user and the call time in the call requests. Specifically, the process of determining the order of the call requests in the call sequencing queue according to the user class of the calling user and the call time in the call requests may be: the emergency core network sorts the call sorting queues according to the user class of the calling user, and illustratively, the call request with high user class of the calling user is arranged in front of the call request with low user class of the calling user. The emergency core network then adjusts the ordering of the call requests of the same user class of the calling user in the call ordering queue according to the call time, and the call requests with early call time are arranged in front of the call requests with late call time, for example.
Step S408: the call requests are added to the call ordering queue in order.
And adding the call requests into the call sequencing queue according to the order of the call requests in the call sequencing queue, so that when the emergency core network has spare capacity, the emergency core network can process the call requests in the call sequencing queue.
The embodiment distinguishes rescue workers and disaster-stricken people, preferably meets the call request of the rescue workers, ensures the communication of the rescue workers in an emergency area, and improves the rescue rate. According to the embodiment, the user grade and the call sequencing mechanism aiming at the disaster-stricken are designed, when the current service capacity of the emergency core network reaches a preset threshold value, the call request is added into the call sequencing queue according to the user grade of the calling user and the call time in the call request, and the user grade of the disaster-stricken which is in communication connection with the called user is adjusted, so that the emergency communication resource can preferentially meet the calling user which is not in communication connection with the called user when the emergency communication resource is applied to the disaster-stricken, and the rescue utilization rate of the emergency communication service is improved while the flow control processing of the call request is realized.
Fig. 5 is a schematic flow chart of a third embodiment of an emergency communication method provided by the application. Referring to fig. 5, the emergency communication method further includes the steps of:
Step S501: and receiving a registration request sent by the user equipment of the emergency area, wherein the registration request comprises the number to be registered and user data information.
After the user equipment searches for a signal of the emergency base station in a starting state, a registration request is sent to the emergency base station, the emergency base station sends the registration request sent by the user equipment to an emergency core network, and the emergency core network receives the registration request sent by the user equipment of an emergency area sent by the emergency base station, wherein the registration request comprises a number to be registered and user data information.
Step S502: according to the registration request, the number to be registered is registered, registration authentication is conducted, and the number to be registered and user data information are stored in a database of the emergency core network.
The emergency core network authenticates the number to be registered according to the registration request, passes through registration authentication and authorization, and then stores the number to be registered and user data information in a database of the emergency core network.
Specifically, taking a 4G VoLTE user as an example, fig. 6 is a schematic diagram of a 4G VoLTE user registration flow, and as shown in fig. 6, the emergency core network performs registration processing, including attachment and IMS registration, on a number to be registered according to a registration request sent by a user equipment UE of the 4G VoLTE user. After receiving the Attach Request (Attach Request), the packet core network (Evolved Packet Core, EPC) performs special processing on the Attach Request through the mobility management entity (Mobility Management Entity, MME) and HSS, and releases registration authentication and stores the number to be registered and user data information such as international mobile subscriber identity (International Mobile Subscriber Identity, IMSI) and mobile station international subscriber identity (Mobile Subscriber International ISDN number, MSISDN). The user equipment UE then sends a registration request (Register) to the IMS, which performs special processing on the registration request through the S-CSCF and HSS, and releases the registration authentication and stores user data information such as multimedia public identity (IP Multimedia Public Identity, abbreviated IMPU), terminal address, and the like. For 5G VoNR users, the registration procedure is similar to the 4G VoLTE user registration procedure.
In addition, for the 4G non-VoLTE user and the 5G non-VoNR user, only the special registration processing of the attachment process is needed to be completed, and the registration authentication is released and the user data information is stored. For 3G users, IMS registration is not needed, and only special registration processing of the attachment process is needed, namely, a 3G core network MSC is needed to carry out special processing on a registration request, and registration authentication is put through and user data information is stored.
In this embodiment, the emergency core network receives a registration request sent by a user device in an emergency area, where the registration request includes a number to be registered and user data information. The emergency core network carries out registration processing on the number to be registered according to the registration request, releases registration authentication, and stores the number to be registered and user data information in a database of the emergency core network. In this embodiment, the emergency communication vehicle and the emergency communication unmanned aerial vehicle are not required to be respectively driven by multiple operators so as to meet the call requests of users belonging to different operators, and the requirements of disaster-stricken masses in an emergency area can be met only by driving the emergency communication vehicle and the emergency communication unmanned aerial vehicle by an emergency rescue department or carrying an emergency base station by a communicator, so that the problem of unsmooth communication coordination when multiple emergency communication devices are driven by multiple operators is avoided, and the problem of multiple coverage of multiple operators in an airspace is also avoided. In the embodiment, the emergency core network releases the registration authentication, so that the emergency core network can process call requests of users belonging to different mobile phone types of different operators, and the problem that emergency communication cannot be performed under the condition that the operator core network participates is solved.
On the basis of any of the above embodiments one to three, another case where the emergency core network queries the user numbers of the registered emergency core networks in the emergency area stored in the database of the emergency core network according to the called user number through the emergency core network according to the fourth embodiment is described below, that is, when the user numbers of the registered emergency core networks in the emergency area stored in the database of the emergency core network are queried according to the called user number in step S202, when it is determined that the called user number is not the user number in the emergency area, the scheme may further operate as follows:
specifically, the emergency core network queries the user numbers of the registered emergency core network in the emergency area stored in the database of the emergency core network according to the called user numbers, determines that the called user numbers are not numbers in the emergency area and are not emergency rescue numbers in the non-emergency area, namely the called user numbers are common crowd numbers in the non-emergency area, and in order to save satellite link resources, the emergency core network refuses to establish call connection, generates pacifying short messages and sends the pacifying short messages to user equipment corresponding to the calling numbers. For example, the pacifying short message may include: "in order to save satellite link resources, please do not dial the number, if you have rescue needs, you can dial the emergency rescue numbers of 110, 119, 112, etc.
In this embodiment, when the emergency core network determines that the number of the called user is not a number in the emergency area and is not an emergency rescue number in the non-emergency area, the call connection is refused to be established, and a pacifying short message is generated to be sent to the user equipment corresponding to the calling number. The embodiment realizes the flow control processing of the call request and improves the utilization rate of emergency communication resources and the use experience of users.
In addition, a further case where the emergency core network according to embodiment five queries the user numbers of the registered emergency core network in the emergency area stored in the database of the emergency core network according to the called user number will be described below.
If the emergency core network determines that the called number is not the number of the emergency area and is the emergency rescue number of the non-emergency area, when the current service capacity of the emergency core network does not meet the threshold value, the communication connection between the calling user and the called user is established through the satellite link system.
Specifically, the emergency core network forwards the call request to the emergency command center through satellite link resources, the emergency command center is connected with the operator network through a fixed special line, the emergency command center forwards the call request to the operator network, and communication connection between the calling user and the called user is established.
In addition, if the emergency core network determines that the called number is not the number of the emergency area and is the emergency rescue number of the non-emergency area, when the current service capacity of the emergency core network reaches a threshold value, determining the user grade of the calling user, and determining the order of the call request in the call sequencing queue according to the user grade of the calling user and the call time in the call request; the call requests are added to the call ordering queue in order. Specifically, the sorting method of the call sorting queue is the same as that of step S404, and will not be described here again.
In this embodiment, if the emergency core network determines that the called number is not the number of the emergency area and is the emergency rescue number of the non-emergency area, when the current service capacity of the emergency core network does not meet the threshold, a communication connection between the calling user and the called user is established through the satellite link system. In the embodiment, the network channels of the emergency core network and the operator of the emergency area are opened through the satellite link, so that part of necessary emergency call requirements between the emergency area user and the operator network are realized.
The following are examples of the apparatus of the present application that may be used to perform the method embodiments of the present application. For details not disclosed in the embodiments of the apparatus of the present application, please refer to the embodiments of the method of the present application.
Fig. 7 is a schematic structural diagram of an embodiment of an emergency communication apparatus according to the present application; as shown in fig. 7, the emergency communication apparatus 70 includes: a receiving module 71, configured to receive a call request, where the call request includes a calling subscriber number and a called subscriber number; the processing module 72 is configured to query, according to the called subscriber number, a subscriber number of the emergency core network registered in the emergency area stored in the database of the emergency core network, and determine, when the called subscriber number is determined to be a subscriber number in the emergency area, whether the type of the calling subscriber corresponding to the calling subscriber number and the current service capacity of the emergency core network satisfy a local communication connection establishment condition; the processing module 72 is further configured to establish a local communication connection between the calling subscriber and the called subscriber if the current service capacity of the emergency core network meets the local communication connection establishment condition.
In one possible embodiment, the processing module 72 is specifically configured to:
judging whether the type of the calling user is a rescue type, and if the type of the calling user is the rescue type, meeting the local communication connection establishment condition.
In one possible embodiment, the processing module 72 is further configured to:
If the type of the calling user is judged to be not the rescue type, judging whether the current service capacity of the emergency core network reaches a preset threshold value or not;
and if the current service capacity of the emergency core network is judged not to reach the preset threshold value, the local communication connection establishment condition is met.
In one possible embodiment, the processing module 72 is further configured to:
after a local communication connection between the calling subscriber and the called subscriber is established, the subscriber class of the calling subscriber is reduced.
In one possible embodiment, the processing module 72 is further configured to:
if the current service capacity of the emergency core network reaches the preset threshold value, determining the user grade of the calling user, and determining the sequence of the call request in the call sequencing queue according to the user grade of the calling user and the call time in the call request;
the call requests are added to the call ordering queue in order.
In one possible embodiment, the processing module 72 is specifically configured to:
inquiring a database of an emergency core network, acquiring user data information corresponding to the called user number, and carrying out localized call processing and message routing processing between a calling user and a called user according to the user data information.
The emergency communication device provided by the embodiment of the application can execute the technical scheme shown in the embodiment of the method, and the implementation principle and the beneficial effects are similar, and are not repeated here.
In one possible embodiment, the processing module 72 is further configured to:
receiving a registration request sent by user equipment in an emergency area, wherein the registration request comprises a number to be registered and user data information;
according to the registration request, the number to be registered is registered, registration authentication is conducted, and the number to be registered and user data information are stored in a database of the emergency core network.
The emergency communication device provided by the embodiment of the application can execute the technical scheme shown in the embodiment of the method, and the implementation principle and the beneficial effects are similar, and are not repeated here.
In one possible embodiment, the processing module 72 is further configured to:
and refusing to establish call connection and generating a pacifying short message to send the pacifying short message to user equipment corresponding to the calling number when the called user number is determined to be not a number in an emergency area and not an emergency rescue number in the non-emergency area.
The emergency communication device provided by the embodiment of the application can execute the technical scheme shown in the embodiment of the method, and the implementation principle and the beneficial effects are similar, and are not repeated here.
In one possible embodiment, the processing module 72 is further configured to:
if the called number is determined to be not the number of the emergency area and is not the emergency rescue number of the emergency area, when the current service capacity of the emergency core network does not meet the threshold value, the communication connection between the calling user and the called user is established through the satellite link system.
The emergency communication device provided by the embodiment of the application can execute the technical scheme shown in the embodiment of the method, and the implementation principle and the beneficial effects are similar, and are not repeated here.
The embodiment of the application also provides an emergency communication system, which comprises: an emergency base station, a satellite link system and an emergency communication device.
The emergency communication system provided by the embodiment of the application can execute the technical scheme shown by the implementation of the method, and the implementation principle and the beneficial effects are similar, and the detailed description is omitted.
Fig. 8 is a schematic structural diagram of an electronic device according to the present application. As shown in fig. 8, the electronic device 80 includes: a processor 81, a memory 82, and a communication interface 83; wherein the memory 82 is configured to store executable instructions executable by the processor 81; the processor 81 is configured to perform the solution of any of the method embodiments described above via execution of executable instructions.
Alternatively, the memory 82 may be separate or integrated with the processor 81.
Optionally, when the memory 82 is a device separate from the processor 81, the electronic device 80 may further include: and a bus for connecting the devices.
The electronic device is configured to execute the technical scheme in any of the foregoing method embodiments, and its implementation principle and technical effects are similar, and are not described herein again.
The embodiment of the application also provides a readable storage medium, on which a computer program is stored, which when executed by a processor implements the technical solution provided by any of the foregoing embodiments.
The embodiment of the application also provides a computer program product, which comprises a computer program, and the computer program is used for realizing the technical scheme provided by any one of the method embodiments when being executed by a processor.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced equivalently; such modifications and substitutions do not depart from the spirit of the application.
Claims (21)
1. An emergency communication method, applied to an emergency core network, comprising:
receiving a call request, wherein the call request comprises a calling user number and a called user number;
inquiring a user number registered in the emergency core network in an emergency area stored in a database of the emergency core network according to the called user number, and judging whether the type of a calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition when the called user number is determined to be the user number in the emergency area;
and if the current service capacity of the emergency core network meets the local communication connection establishment condition, establishing local communication connection between the calling user and the called user.
2. The emergency communication method according to claim 1, wherein the determining whether the type of the calling subscriber corresponding to the calling subscriber number and the current service capacity of the emergency core network satisfy the local communication connection establishment condition includes:
judging whether the type of the calling user is a rescue type, and if the type of the calling user is the rescue type, meeting the local communication connection establishment condition.
3. The emergency communication method according to claim 2, further comprising:
if the type of the calling user is judged to be not the rescue type, judging whether the current service capacity of the emergency core network reaches a preset threshold value or not;
and if the current service capacity of the emergency core network is judged not to reach the preset threshold, the local communication connection establishment condition is met.
4. The emergency communication method according to claim 3, further comprising:
if the current service capacity of the emergency core network reaches the preset threshold value, determining the user grade of the calling user, and determining the sequence of the call request in a call sequencing queue according to the user grade of the calling user and the call time in the call request;
And adding the call request to the call sequencing queue according to the sequence.
5. The emergency communication method according to any one of claims 1 to 3, further comprising:
receiving a registration request sent by user equipment of the emergency area, wherein the registration request comprises a number to be registered and user data information;
and according to the registration request, carrying out registration processing on the number to be registered, releasing registration authentication, and storing the number to be registered and the user data information in a database of the emergency core network.
6. The emergency communication method of claim 5, wherein the establishing a local communication connection between the calling subscriber and the called subscriber comprises:
inquiring a database of the emergency core network, acquiring user data information corresponding to the called user number, and carrying out localized call processing and message routing processing between the calling user and the called user according to the user data information.
7. The emergency communication method according to claim 3, further comprising, after said establishing a local communication connection between said calling user and said called user:
And reducing the user grade of the calling user.
8. The emergency communication method according to claim 1, further comprising:
and refusing to establish call connection and generating a pacifying short message to be sent to user equipment corresponding to the calling number when the called user number is determined to be not a number in the emergency area and not an emergency rescue number in the non-emergency area.
9. The emergency communication method according to claim 1, further comprising:
if the called number is determined not to be the number of the emergency area and is the emergency rescue number of the non-emergency area, when the current service capacity of the emergency core network does not meet the threshold value, establishing communication connection between the calling user and the called user through a satellite link system.
10. An emergency communication apparatus, comprising:
the receiving module is used for receiving a call request, wherein the call request comprises a calling user number and a called user number;
the processing module is used for inquiring the user number registered in the emergency area stored in the database of the emergency core network according to the called user number, and judging whether the type of the calling user corresponding to the calling user number and the current service capacity of the emergency core network meet the local communication connection establishment condition when the called user number is determined to be the user number in the emergency area;
And the processing module is further used for establishing the local communication connection between the calling user and the called user if the current service capacity of the emergency core network meets the local communication connection establishment condition.
11. Emergency communication device according to claim 10, characterized in that the processing module is in particular adapted to:
judging whether the type of the calling user is a rescue type, and if the type of the calling user is the rescue type, meeting the local communication connection establishment condition.
12. The emergency communication device of claim 11, wherein the processing module is further configured to:
if the type of the calling user is judged to be not the rescue type, judging whether the current service capacity of the emergency core network reaches a preset threshold value or not;
and if the current service capacity of the emergency core network is judged not to reach the preset threshold, the local communication connection establishment condition is met.
13. The emergency communication device of claim 12, wherein the processing module is further configured to:
if the current service capacity of the emergency core network reaches the preset threshold value, determining the user grade of the calling user, and determining the sequence of the call request in a call sequencing queue according to the user grade of the calling user and the call time in the call request;
And adding the call request to the call sequencing queue according to the sequence.
14. The emergency communication device of any one of claims 10 to 12, wherein the processing module is further configured to:
receiving a registration request sent by user equipment of the emergency area, wherein the registration request comprises a number to be registered and user data information;
and according to the registration request, carrying out registration processing on the number to be registered, releasing registration authentication, and storing the number to be registered and the user data information in a database of the emergency core network.
15. Emergency communication device according to claim 14, characterized in that the processing module is specifically configured to:
inquiring a database of the emergency core network, acquiring user data information corresponding to the called user number, and carrying out localized call processing and message routing processing between the calling user and the called user according to the user data information.
16. The emergency communication device of claim 12, wherein the processing module is further configured to:
and reducing the user grade of the calling user after the local communication connection between the calling user and the called user is established.
17. The emergency communication device of claim 10, wherein the processing module is further configured to:
and refusing to establish call connection and generating a pacifying short message to be sent to user equipment corresponding to the calling number when the called user number is determined to be not a number in the emergency area and not an emergency rescue number in the non-emergency area.
18. The emergency communication device of claim 10, wherein the processing module is further configured to:
if the called number is determined not to be the number of the emergency area and is the emergency rescue number of the non-emergency area, when the current service capacity of the emergency core network does not meet the threshold value, establishing communication connection between the calling user and the called user through a satellite link system.
19. An emergency communication system, comprising: emergency base station, satellite link system and emergency communication apparatus according to any one of claims 10 to 18.
20. An electronic device, comprising:
a processor, a memory, a communication interface;
the memory is used for storing executable instructions executable by the processor;
Wherein the processor is configured to perform the emergency communication method of any one of claims 1 to 9 via execution of the executable instructions.
21. A readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the emergency communication method of any one of claims 1 to 9.
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