CN106686564B - Method and device for realizing emergency call based on VoLTE - Google Patents
Method and device for realizing emergency call based on VoLTE Download PDFInfo
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- CN106686564B CN106686564B CN201510755861.5A CN201510755861A CN106686564B CN 106686564 B CN106686564 B CN 106686564B CN 201510755861 A CN201510755861 A CN 201510755861A CN 106686564 B CN106686564 B CN 106686564B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1083—In-session procedures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1096—Supplementary features, e.g. call forwarding or call holding
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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
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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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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Abstract
The embodiment of the invention provides a method and a device for realizing an emergency call based on VoLTE, wherein the method for realizing the emergency call comprises the following steps: the method comprises the steps that a silent emergency call request is sent to an emergency call processing center, the silent emergency call request carries a preset emergency call number and first media attribute information of a terminal, and the first media attribute information indicates that the terminal only sends media data; closing the screen display and playback functions of the terminal; after receiving a called response instruction returned by the emergency call processing center, the embodiment of the invention sends the voice information in the current environment of the terminal to the emergency call processing center.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a device for realizing an emergency call based on VoLTE.
Background
The emergency call service refers to emergency special services such as fire alarm, bandit alarm, medical emergency, traffic accident alarm and the like provided for users on a telecommunication network. The emergency call service based on the VoLTE is a service that a VoLTE network completes the judgment of the user access position and transfers the emergency call to an emergency call processing center where the user is located through an emergency call initiated by a VoLTE mobile terminal, wherein the VoLTE is a voice service based on a Long Term Evolution (LTE) and a Protocol (IP, Internet Protocol) multimedia subsystem (IMS) interconnected between networks.
Wherein, the functional requirements based on VoLTE emergency call mainly include:
(1) there is a need to support voice-type emergency call functionality: the user dials the emergency call number, and the network can realize the connection between the terminal and the emergency call processing center.
(2) An IMS network entry point network element (a session border controller or a proxy call session control function) supports the acquisition of user location information (TAI) through a Policy Control and Charging (PCC) process and ensures the accuracy of the user location information.
(3) The core network should be able to select the correct route for the user to the emergency call processing center based on the user location information: when the core network judges that the user position information is credible, the core network can route to an emergency call processing center nearest to the user; when the core network judges that the user position information is not credible, a default route can be selected to connect the emergency call processing center for the user.
(4) The IMS core network should support the provision of emergency call services to users at the place where they visit.
The emergency call user using process based on VoLTE is as follows:
(1) a user dials an emergency call number (e.g. 110) using a VoLTE terminal in case of emergency;
(2) the VoLTE Network identifies that the user dials an emergency call, establishes a Public Data Network (PDN) connection for the VoLTE terminal, and ensures the priority of call connection;
(3) an IMS network element Session Border Controller (SBC) acquires location information of user access, such as a cell number, a TAI and the like, through a PCC architecture, and is used for determining the geographical location of a user;
(4) the VoLTE network forwards the call to an emergency call processing center closest to the user according to the geographical position of the user;
(5) the emergency call processing center continues the emergency call, obtains the site information through the communication with the user, and arranges the follow-up work such as police.
However, the existing emergency call based on VoLTE has the following disadvantages, which may cause serious problems in some scenarios:
(1) playing ring back tone in calling, if user signs calling ring back tone, playing ring back tone;
(2) after the call is connected, the operator can communicate with the user through the language to acquire information of emergency.
In some situations, for example, the user is in a monitored or hidden state, and in a quiet situation, the ring back tone and the voice of the operator are both transmitted through the terminal earphone or the speaker, which may cause the user to perform an alarm or find the hidden place, resulting in serious consequences such as subsequent personal injury.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for realizing an emergency call based on VoLTE, which can ensure that a terminal initiating the emergency call does not perform screen display and ring tone play, realize the emergency call in a silent mode and effectively avoid danger caused by the discovery of the alarm behavior of a user.
In order to achieve the above object, an embodiment of the present invention provides a method for implementing an emergency call based on VoLTE, which is applied to a terminal, and the method includes:
the method comprises the steps that a silent emergency call request is sent to an emergency call processing center, the silent emergency call request carries a preset emergency call number and first media attribute information of a terminal, and the first media attribute information indicates that the terminal only sends media data;
closing the screen display and playback functions of the terminal;
and after receiving a called response instruction returned by the emergency call processing center, sending voice information in the current environment where the terminal is located to the emergency call processing center.
Wherein, the step of sending a silent emergency call request to the emergency call processing center comprises:
monitoring whether a number to be called input by a user is a preset emergency call number or not;
when the number to be called is a preset emergency call number, monitoring whether a dialing button of the terminal is pressed;
when the dial button is pressed, a silent emergency call request is sent to the emergency call processing center.
Wherein, the step of sending a silent emergency call request to the emergency call processing center comprises:
monitoring whether an emergency call button corresponding to a predetermined emergency call number is pressed;
when the emergency call button is pressed, a silent emergency call request is transmitted to the emergency call processing center.
After the step of sending the voice information in the current environment of the terminal to the emergency call processing center, the implementation method further includes:
receiving a media renegotiation message sent by the emergency call processing center, wherein the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
starting a camera of the terminal;
and acquiring image information in the current environment of the terminal through the camera, and sending the image information to the emergency call processing center.
The embodiment of the invention also provides a device for realizing the emergency call based on the VoLTE, which is applied to a terminal and comprises the following components:
the first sending module is used for sending a silent emergency call request to the emergency call processing center, wherein the silent emergency call request carries a preset emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data;
the closing module is used for closing the screen display and playback functions of the terminal;
and the second sending module is used for sending the voice information in the current environment of the terminal to the emergency call processing center after receiving a called response instruction returned by the emergency call processing center.
Wherein the first transmitting module comprises:
the first monitoring unit is used for monitoring whether the number to be called input by the user is a preset emergency calling number or not and triggering the second monitoring unit when the number to be called is the preset emergency calling number;
the second monitoring unit is used for monitoring whether a dialing button of the terminal is pressed or not according to the triggering of the first monitoring unit and triggering the first sending unit when the dialing button is pressed;
and the first sending unit is used for sending a silent emergency call request to the emergency call processing center according to the triggering of the second monitoring unit.
Wherein the first transmitting module comprises:
a third monitoring unit for monitoring whether an emergency call button corresponding to a predetermined emergency call number is pressed, and triggering the second sending unit when the emergency call button is pressed;
and the second sending unit is used for sending the silent emergency call request to the emergency call processing center according to the triggering of the third monitoring unit.
Wherein, the implementation device further comprises:
the first receiving module is used for receiving a media renegotiation message sent by the emergency call processing center, wherein the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
the starting module is used for starting a camera of the terminal;
and the third sending module is used for acquiring the image information in the current environment of the terminal through the camera and sending the image information to the emergency call processing center.
The embodiment of the invention also provides a terminal, which comprises the device for realizing the emergency call based on the VoLTE.
The embodiment of the invention also provides a method for realizing the emergency call based on the VoLTE, which is applied to an emergency call processing center and comprises the following steps:
receiving a silent emergency call request sent by a terminal, wherein the silent emergency call request carries a preset emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data;
judging whether the call corresponding to the silent emergency call request is a silent emergency call according to a preset emergency call number;
when the call corresponding to the silent emergency call request is a silent emergency call, a called response instruction is returned to the terminal;
and receiving the voice information in the environment where the terminal is currently located, which is sent by the terminal.
When the call corresponding to the silent emergency call request is a silent emergency call, the implementation method further comprises the following steps:
and prompting the user that the call corresponding to the silent emergency call request is a silent emergency call.
Wherein, according to the predetermined emergency call number, judge the step that the call that the urgent call request of the silence corresponds to is the urgent call of the silence, including:
judging whether a specific access number which is the same as a preset emergency call number exists in at least one specific access number which is stored in an emergency call processing center in advance;
when the specific access number which is the same as the preset emergency call number exists in at least one specific access number which is prestored in the emergency call processing center, determining that the call corresponding to the silent emergency call request is a silent emergency call.
After the step of receiving the voice information in the environment where the terminal is currently located, the implementation method further includes:
sending a media renegotiation message to the terminal, wherein the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
and receiving image information in the current environment of the terminal, which is sent by the terminal.
The embodiment of the invention also provides a device for realizing the emergency call based on the VoLTE, which is applied to an emergency call processing center, and the device comprises:
the second receiving module is used for receiving a silent emergency call request sent by the terminal, wherein the silent emergency call request carries a preset emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data;
the judging module is used for judging whether the call corresponding to the silent emergency call request is a silent emergency call according to the preset emergency call number and triggering the returning module when the call corresponding to the silent emergency call request is the silent emergency call;
the return module is used for returning a called response instruction to the terminal according to the triggering of the judgment module;
and the third receiving module is used for receiving the voice information in the environment where the terminal is currently located, which is sent by the terminal.
Wherein, the implementation device further comprises:
and the prompting module is used for prompting the user that the call corresponding to the silent emergency call request is a silent emergency call.
Wherein, the judging module includes:
the judging unit is used for judging whether a specific access number which is the same as a preset emergency call number exists in at least one specific access number which is prestored in the emergency call processing center, and triggering the determining unit when the specific access number which is the same as the preset emergency call number exists in the at least one specific access number which is prestored in the emergency call processing center;
and the determining unit is used for determining that the call corresponding to the silent emergency call request is a silent emergency call according to the trigger of the judging unit.
Wherein, the implementation device further comprises:
the fourth sending module is used for sending a media renegotiation message to the terminal, wherein the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
and the fourth receiving module is used for receiving the image information in the current environment where the terminal is located, which is sent by the terminal.
The embodiment of the invention also provides an emergency call processing center which comprises the device for realizing the emergency call based on the VoLTE.
The scheme of the invention at least comprises the following beneficial effects:
in the embodiment of the invention, after the terminal sends a silent emergency call request carrying a preset emergency call number and first media attribute information of the terminal to the emergency call processing center, the terminal closes the screen display and sound reproduction functions of the terminal, and sends voice information in the current environment of the terminal to the emergency call processing center after receiving a called response instruction returned by the emergency call processing center, thereby solving the problem that the alarm behavior of a user is discovered and further brings danger when the user dials the emergency call in an emergency scene, achieving the purposes that the terminal initiating the emergency call does not carry out screen display and ring sound reproduction, realizing the emergency call in a silent mode, and effectively avoiding the effect that the alarm behavior of the user is discovered and further brings danger.
Drawings
Fig. 1 is a flowchart of a method for implementing a VoLTE-based emergency call according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating interaction between a terminal and an emergency call processing center according to a first embodiment of the present invention;
fig. 3 is a second flowchart illustrating the interaction between the terminal and the emergency call processing center according to the first embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for implementing a VoLTE-based emergency call according to a second embodiment of the present invention;
fig. 5 is a flowchart of a method for implementing a VoLTE-based emergency call according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus for implementing an emergency call based on VoLTE in a fifth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
First embodiment
As shown in fig. 1, a first embodiment of the present invention provides a method for implementing a VoLTE-based emergency call, which is applied to a terminal (preferably, a VoLTE terminal), where the method includes:
step S101, a silent emergency call request is sent to an emergency call processing center.
The silent emergency call Request carries a predetermined emergency call number, and specifically, the silent emergency call Request can be implemented by setting a called number (Request-URI) to a silent mode predetermined emergency call number in the process of initiating a call. The silent emergency call request further carries first media attribute information of the terminal, where the first media attribute information indicates that the terminal only transmits media data, that is, indicates that the terminal does not receive media data, and specifically, the silent emergency call request can be implemented by setting the media attribute to unidirectional transmit only (sendonly) in a session description protocol offer (SDP offer) carried in the silent emergency call request.
In the first embodiment of the present invention, the predetermined emergency call number is a number that is determined by a public security agency and is recognizable to each operator, for example, 12599110.
And step S102, closing the screen display and playback functions of the terminal.
In the first embodiment of the invention, the function of closing the screen display and the sound reproduction of the terminal is equivalent to the function of closing the screen display of the terminal and receiving the ring back tone, the color ring and the voice of the emergency call processing center, namely the terminal has no display and sound reproduction, thereby effectively avoiding the danger brought by the discovery of the alarm behavior of the user.
Step S103, after receiving the called response instruction returned by the emergency call processing center, sending the voice information in the current environment of the terminal to the emergency call processing center.
In the first embodiment of the present invention, after receiving a called response instruction returned by the emergency call processing center, the terminal sends the voice information in the current environment where the terminal is located to the emergency call processing center, so that a worker (i.e., a wire operator) at the emergency call processing center can know the specific situation of the current environment where the user at the terminal is located.
In the first embodiment of the present invention, there are two implementation manners of the step S101.
The first implementation manner is as follows: by monitoring whether a number to be called input by a user is a predetermined emergency call number (e.g., 12599110, etc.), when the number to be called is the predetermined emergency call number, it is continuously monitored whether a dial button of the terminal is pressed, and when the dial button is pressed, a silent emergency call request is transmitted to the emergency call processing center. There are various ways to monitor whether the number to be called input by the user is a predetermined emergency call number, for example, determining whether there is a predetermined emergency call number identical to the number to be called input by the user in one or more predetermined emergency call numbers (e.g., 12599110, 12599120, etc.) stored in the terminal itself, and if there is a predetermined emergency call number identical to the number to be called input by the user, considering the number to be called input by the user as the predetermined emergency call number.
The second implementation manner is as follows: by monitoring whether an emergency call button corresponding to a predetermined emergency call number is pressed and transmitting a silent emergency call request to an emergency call processing center when the emergency call button is pressed. Specifically, this can be achieved by setting an emergency call button bound with a predetermined emergency call number on the terminal. Preferably, when a plurality of predetermined emergency call numbers exist, an emergency call button can be bound to each predetermined emergency call number, so that the user can dial an emergency call in an emergency scene more conveniently.
In the first embodiment of the invention, after the terminal sends a silent emergency call request carrying a preset emergency call number and first media attribute information of the terminal to the emergency call processing center, the terminal closes the screen display and sound reproduction functions of the terminal, and sends voice information in the current environment of the terminal to the emergency call processing center after receiving a called response instruction returned by the emergency call processing center, thereby solving the problem that the alarm behavior of a user is found and further danger is caused when the user dials the emergency call in an emergency scene, achieving the purpose that the terminal initiating the emergency call does not carry out screen display and ring sound reproduction, realizing the emergency call in a silent mode, and effectively avoiding the effect that the alarm behavior of the user is found and further danger is caused.
In a first embodiment of the present invention, the above implementation method is explained in conjunction with a VoLTE-based emergency call architecture. As shown in fig. 2, a terminal (UE) first sends a silent emergency call request to a proxy call session control function (P-CSCF), where the silent emergency call request carries a predetermined emergency call number and first media attribute information of the terminal; after receiving the silent emergency call request, the P-CSCF returns a response message to the terminal, and when the P-CSCF identifies that the call corresponding to the silent emergency call request is an emergency call, the P-CSCF reserves a media plane resource request required by the call to a PDN gateway (P-GW) through a Policy and Charging Rules Function (PCRF); at this time, the PCRF sends a request for reserving media plane resources to the P-GW, and also obtains location information (e.g., cell number, etc.) of the user; the P-GW returns a response media resource reservation request to the PCRF and establishes an emergency special bearer for the call; the PCRF responds to the P-CSCF and the resource reservation is completed; at this time, the P-CSCF forwards the silent emergency call request to an emergency call session control function (E-CSCF); the E-CSCF returns a response message to the P-CSCF, and forwards the call to an emergency call processing center (PSAP) closest to the user according to the position information of the user; the emergency call processing center returns a response message to the E-CSCF and prompts the call to the operator that the call is a silent emergency call, and simultaneously the emergency call processing center returns a ringing message to the terminal to prompt the calling party to ring the called party; when the operator answers the call, the emergency call processing center returns an off-hook message to the terminal to prompt that the calling party and the called party are off-hook; correspondingly, the terminal will return a response message to the emergency call processing center, indicating that the off-hook message is received, so far, the two parties enter a conversation state, and the terminal will send voice information to the emergency call processing center.
In the first embodiment of the present invention, after the step S203 is executed, the implementation method further includes: receiving a media renegotiation message sent by an emergency call processing center, wherein the media renegotiation message carries video media information (namely video SDP) and second media attribute information of the emergency call processing center, the second media attribute information indicates that the emergency call processing center only receives media data, and after receiving the media renegotiation message, a camera of a terminal is started, so that image information (such as videos, photos and the like) in the current environment of the terminal is obtained through the camera, and the image information is sent to the emergency call processing center. Thereby facilitating the emergency call processing center side personnel (e.g., operators) to more clearly understand the details of the current environment of the end side user.
In the first embodiment of the present invention, the step of the terminal transmitting the image information to the emergency call processing center is described in conjunction with the emergency call architecture based on VoLTE. As shown in fig. 3, after receiving the voice message sent by the terminal, the emergency call processing center (PSAP) sends a media renegotiation message to the E-CSCF, wishing to modify the call into a video call; the E-CSCF can forward the call to the P-CSCF, so that the P-CSCF sends a media resource request required by the reserved video call to the PCRF; at the moment, the PCRF sends a request for reserving the video call media resources to the P-GW; after the P-GW reserves the media resources, a response message is returned to the PCRF, so that the PCRF can return the response message to the P-CSCF and inform the P-CSCF of the completion of the reservation of the resources; at the moment, the P-CSCF can send a media weight negotiation message to the terminal; and after receiving the media renegotiation message, the terminal returns a successful negotiation response message to the emergency call processing center, simultaneously starts the camera to acquire field image information, and sends the acquired image information to the emergency call processing center.
Second embodiment
As shown in fig. 4, a second embodiment of the present invention provides an apparatus for implementing an emergency call based on VoLTE, which is applied to a terminal, and the apparatus includes:
a first sending module 401, configured to send a silent emergency call request to the emergency call processing center, where the silent emergency call request carries a predetermined emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data;
a closing module 402, configured to close the screen display and playback functions of the terminal;
the second sending module 403 is configured to send, after receiving a called response instruction returned by the emergency call processing center, voice information in an environment where the terminal is currently located to the emergency call processing center.
The first sending module 401 includes:
the first monitoring unit is used for monitoring whether the number to be called input by the user is a preset emergency calling number or not and triggering the second monitoring unit when the number to be called is the preset emergency calling number;
the second monitoring unit is used for monitoring whether a dialing button of the terminal is pressed or not according to the triggering of the first monitoring unit and triggering the first sending unit when the dialing button is pressed;
and the first sending unit is used for sending a silent emergency call request to the emergency call processing center according to the triggering of the second monitoring unit.
The first sending module 401 includes:
a third monitoring unit for monitoring whether an emergency call button corresponding to a predetermined emergency call number is pressed, and triggering the second sending unit when the emergency call button is pressed;
and the second sending unit is used for sending the silent emergency call request to the emergency call processing center according to the triggering of the third monitoring unit.
Wherein, the implementation device further comprises:
the first receiving module is used for receiving a media renegotiation message sent by the emergency call processing center, wherein the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
the starting module is used for starting a camera of the terminal;
and the third sending module is used for acquiring the image information in the current environment of the terminal through the camera and sending the image information to the emergency call processing center.
In the second embodiment of the invention, after the terminal sends a silent emergency call request carrying a preset emergency call number and the first media attribute information of the terminal to the emergency call processing center, the terminal closes the screen display and sound reproduction functions of the terminal, and sends the voice information in the current environment to the emergency call processing center after receiving a called response instruction returned by the emergency call processing center, thereby solving the problem that the alarm behavior of the user is found and further danger is caused when the user dials the emergency call in an emergency scene, achieving the purpose that the terminal initiating the emergency call does not carry out screen display and ring sound reproduction, realizing the emergency call in a silent mode, and effectively avoiding the effect that the alarm behavior of the user is found and further danger is caused.
It should be noted that the implementation apparatus for the emergency call based on VoLTE according to the second embodiment of the present invention is an implementation apparatus to which the implementation method for the emergency call based on VoLTE applied to the terminal is applied, that is, all embodiments of the implementation method for the emergency call based on VoLTE applied to the terminal are applicable to the implementation apparatus, and all the embodiments can achieve the same or similar beneficial effects.
Third embodiment
A third embodiment of the present invention provides a terminal, which includes the apparatus for implementing the VoLTE-based emergency call.
It should be noted that the terminal provided by the third embodiment of the present invention is a terminal including the apparatus for implementing a VoLTE-based emergency call applied to the terminal, that is, all the embodiments of the apparatus for implementing a VoLTE-based emergency call applied to a terminal are applicable to the terminal, and can achieve the same or similar beneficial effects.
Fourth embodiment
As shown in fig. 5, a fourth embodiment of the present invention provides a method for implementing an emergency call based on VoLTE, which is applied to an emergency call processing center, and the method includes:
step S501, receiving a silent emergency call request sent by a terminal.
The silent emergency call request carries a preset emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data.
In a fourth embodiment of the present invention, the predetermined emergency call number is a number that is determined by a public security agency and is recognizable to each operator, for example, 12599110.
Step S502, according to the preset emergency call number, judging whether the call corresponding to the silent emergency call request is a silent emergency call.
In a fourth embodiment of the present invention, the step S502 specifically includes: the method comprises the steps of judging whether a specific access number identical to a preset emergency call number exists in at least one specific access number (such as 12599110, 12599120 and the like) prestored in the emergency call processing center, and determining that a call corresponding to a silent emergency call request is a silent emergency call when the specific access number identical to the preset emergency call number exists in the at least one specific access number prestored in the emergency call processing center.
And step S503, when the call corresponding to the silent emergency call request is a silent emergency call, a called response instruction is returned to the terminal.
In the fourth embodiment of the present invention, when the emergency call processing center confirms that the call corresponding to the silent emergency call request is a silent emergency call, the emergency call processing center also prompts the user (for example, an operator at the emergency call processing center side) that the call corresponding to the silent emergency call request is a silent emergency call, so that the user performs corresponding subsequent operations (for example, setting an alarm, etc.).
Step S504, receiving the voice information in the environment where the terminal is currently located, which is sent by the terminal.
In a fourth embodiment of the present invention, when receiving a silent emergency call request sent by a terminal, an emergency call processing center determines whether a call corresponding to the silent emergency call request is a silent emergency call according to a predetermined emergency call number carried in the silent emergency call request, and when determining that the call corresponding to the silent emergency call request is a silent emergency call, returns a called response instruction to the terminal and receives voice information sent by the terminal. Therefore, the terminal initiating the emergency call can realize the emergency call in a silent mode under the condition of not displaying a screen and playing a ring tone, thereby effectively avoiding the danger brought by the discovery of the alarm behavior of the user.
In a fourth embodiment of the present invention, after step S504, the implementation method further includes: and sending a media weight negotiation message to the terminal, and receiving image information in the current environment where the terminal is located, wherein the image information is sent by the terminal. Thereby facilitating the emergency call processing center side personnel (e.g., operators) to more clearly understand the details of the current environment of the end side user.
The media renegotiation message carries video media information (i.e., video SDP) and second media attribute information of the emergency call processing center, where the second media attribute information indicates that the emergency call processing center only receives media data, i.e., indicates that the emergency call processing center does not send media data, and specifically may be implemented by setting the media attribute to unidirectional incoming receiving (receiveonly) in the media renegotiation message.
Fifth embodiment
As shown in fig. 6, a fifth embodiment of the present invention provides an apparatus for implementing a VoLTE-based emergency call, which is applied to an emergency call processing center, and includes:
a second receiving module 601, configured to receive a silent emergency call request sent by a terminal, where the silent emergency call request carries a predetermined emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data;
a judging module 602, configured to judge whether a call corresponding to the silent emergency call request is a silent emergency call according to a predetermined emergency call number, and trigger a returning module 603 when the call corresponding to the silent emergency call request is a silent emergency call;
a returning module 603, configured to return a called response instruction to the terminal according to the trigger of the determining module 602;
a third receiving module 604, configured to receive the voice information in the environment where the terminal is currently located, where the voice information is sent by the terminal.
Wherein, the implementation device further comprises:
and the prompting module is used for prompting the user that the call corresponding to the silent emergency call request is a silent emergency call.
Wherein, the determining module 602 includes:
the judging unit is used for judging whether a specific access number which is the same as a preset emergency call number exists in at least one specific access number which is prestored in the emergency call processing center, and triggering the determining unit when the specific access number which is the same as the preset emergency call number exists in the at least one specific access number which is prestored in the emergency call processing center;
and the determining unit is used for determining that the call corresponding to the silent emergency call request is a silent emergency call according to the trigger of the judging unit.
Wherein, the implementation device further comprises:
the fourth sending module is used for sending a media renegotiation message to the terminal, wherein the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
and the fourth receiving module is used for receiving the image information in the current environment where the terminal is located, which is sent by the terminal.
In a fifth embodiment of the present invention, when receiving a silent emergency call request sent by a terminal, an emergency call processing center determines whether a call corresponding to the silent emergency call request is a silent emergency call according to a predetermined emergency call number carried in the silent emergency call request, and when determining that the call corresponding to the silent emergency call request is a silent emergency call, returns a called response instruction to the terminal and receives voice information sent by the terminal. Therefore, the terminal initiating the emergency call can realize the emergency call in a silent mode under the condition of not displaying a screen and playing a ring tone, thereby effectively avoiding the danger brought by the discovery of the alarm behavior of the user.
It should be noted that, the implementation apparatus for the emergency call based on VoLTE according to the fifth embodiment of the present invention is an implementation apparatus to which the implementation method for the emergency call based on VoLTE applied to the emergency call processing center is applied, that is, all embodiments of the implementation method for the emergency call based on VoLTE applied to the emergency call processing center are applicable to the implementation apparatus, and all of the same or similar beneficial effects can be achieved.
Sixth embodiment
A sixth embodiment of the present invention provides an emergency call processing center, which includes the apparatus for implementing an emergency call based on VoLTE.
It should be noted that the emergency call processing center provided by the sixth embodiment of the present invention is an emergency call processing center including the implementation apparatus for VoLTE-based emergency call applied to the emergency call processing center, that is, all embodiments of the implementation apparatus for VoLTE-based emergency call applied to the emergency call processing center are applicable to the emergency call processing center, and can achieve the same or similar beneficial effects.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (18)
1. A method for realizing an emergency call based on VoLTE is applied to a terminal, and is characterized in that the method comprises the following steps:
transmitting a silent emergency call request to an emergency call processing center, wherein the silent emergency call request carries a predetermined emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only transmits media data, wherein the silent emergency call request is realized by setting media attributes to unidirectional send only sendonly in a session description protocol offer (SDP offer) carried in the silent emergency call request;
closing the screen display and playback functions of the terminal;
and after receiving a called response instruction returned by the emergency call processing center, sending voice information in the environment where the terminal is currently located to the emergency call processing center.
2. The method of claim 1, wherein the step of sending a silent emergency call request to an emergency call processing center comprises:
monitoring whether a number to be called input by a user is the preset emergency call number or not;
when the number to be called is the preset emergency call number, monitoring whether a dialing button of the terminal is pressed;
transmitting a silent emergency call request to the emergency call processing center when the dial button is pressed.
3. The method of claim 1, wherein the step of sending a silent emergency call request to an emergency call processing center comprises:
monitoring whether an emergency call button corresponding to the predetermined emergency call number is pressed;
transmitting a silent emergency call request to the emergency call processing center when the emergency call button is pressed.
4. The method of claim 1, wherein after the step of sending the voice message in the environment where the terminal is currently located to the emergency call processing center, the method further comprises:
receiving a media renegotiation message sent by an emergency call processing center, wherein the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
starting a camera of the terminal;
and acquiring image information in the current environment of the terminal through the camera, and sending the image information to the emergency call processing center.
5. An implementation apparatus for emergency call based on VoLTE, applied to a terminal, the implementation apparatus comprising:
a first sending module, configured to send a silent emergency call request to an emergency call processing center, where the silent emergency call request carries a predetermined emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data, where the silent emergency call request is implemented by setting a media attribute to send sendonly in one direction in a session description protocol offer SDP offer carried in the silent emergency call request;
the closing module is used for closing the screen display and playback functions of the terminal;
and the second sending module is used for sending the voice information in the environment where the terminal is currently located to the emergency call processing center after receiving a called response instruction returned by the emergency call processing center.
6. The apparatus of claim 5, wherein the first sending module comprises:
the first monitoring unit is used for monitoring whether a number to be called input by a user is the preset emergency calling number or not, and triggering the second monitoring unit when the number to be called is the preset emergency calling number;
the second monitoring unit is used for monitoring whether a dialing button of the terminal is pressed or not according to the triggering of the first monitoring unit and triggering the first sending unit when the dialing button is pressed;
and the first sending unit is used for sending a silent emergency call request to the emergency call processing center according to the triggering of the second monitoring unit.
7. The apparatus of claim 5, wherein the first sending module comprises:
a third monitoring unit, configured to monitor whether an emergency call button corresponding to the predetermined emergency call number is pressed, and trigger a second sending unit when the emergency call button is pressed;
and the second sending unit is used for sending a silent emergency call request to the emergency call processing center according to the triggering of the third monitoring unit.
8. The apparatus of claim 5, wherein the apparatus further comprises:
the first receiving module is configured to receive a media renegotiation message sent by an emergency call processing center, where the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
the starting module is used for starting a camera of the terminal;
and the third sending module is used for acquiring the image information in the current environment of the terminal through the camera and sending the image information to the emergency call processing center.
9. Terminal characterized in that it comprises means for implementing a VoLTE-based emergency call according to any one of claims 5 to 8.
10. An implementation method of an emergency call based on VoLTE is applied to an emergency call processing center, and is characterized in that the implementation method comprises the following steps:
receiving a silent emergency call request sent by a terminal, wherein the silent emergency call request carries a preset emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data, wherein the silent emergency call request is realized by setting media attributes to send only sendonly in one direction in a session description protocol offer (SDP offer) carried in the silent emergency call request;
judging whether the call corresponding to the silent emergency call request is a silent emergency call or not according to the preset emergency call number;
when the call corresponding to the silent emergency call request is a silent emergency call, a called response instruction is returned to the terminal;
and receiving the voice information in the current environment of the terminal, which is sent by the terminal.
11. The method of claim 10, wherein when the call corresponding to the silent emergency call request is a silent emergency call, the method further comprises:
and prompting the user that the call corresponding to the silent emergency call request is a silent emergency call.
12. The method according to claim 10, wherein the step of determining whether the call corresponding to the silent emergency call request is a silent emergency call according to the predetermined emergency call number comprises:
judging whether a specific access number which is the same as the preset emergency call number exists in at least one specific access number which is stored in the emergency call processing center in advance;
and when at least one specific access number stored in the emergency call processing center in advance has the same specific access number as the preset emergency call number, determining that the call corresponding to the silent emergency call request is a silent emergency call.
13. The method according to claim 10, wherein after the step of receiving the voice message sent by the terminal in the environment where the terminal is currently located, the method further comprises:
sending a media weight negotiation message to the terminal, wherein the media weight negotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
and receiving image information in the current environment of the terminal, which is sent by the terminal.
14. An implementation apparatus for emergency call based on VoLTE, applied to an emergency call processing center, the implementation apparatus comprising:
a second receiving module, configured to receive a silent emergency call request sent by a terminal, where the silent emergency call request carries a predetermined emergency call number and first media attribute information of the terminal, and the first media attribute information indicates that the terminal only sends media data, where the silent emergency call request is implemented by setting a media attribute to send sendonly in one direction in a session description protocol offer SDPoffer carried in the silent emergency call request;
the judging module is used for judging whether the call corresponding to the silent emergency call request is a silent emergency call according to the preset emergency call number and triggering the returning module when the call corresponding to the silent emergency call request is the silent emergency call;
the return module is used for returning a called response instruction to the terminal according to the triggering of the judgment module;
and the third receiving module is used for receiving the voice information in the environment where the terminal is currently located, which is sent by the terminal.
15. The apparatus of claim 14, wherein the apparatus further comprises:
and the prompting module is used for prompting the user that the call corresponding to the silent emergency call request is a silent emergency call.
16. The apparatus of claim 14, wherein the determining module comprises:
a judging unit, configured to judge whether a specific access number that is the same as the predetermined emergency call number exists in at least one specific access number that is pre-stored in the emergency call processing center, and trigger a determining unit when the specific access number that is the same as the predetermined emergency call number exists in the at least one specific access number that is pre-stored in the emergency call processing center;
and the determining unit is used for determining that the call corresponding to the silent emergency call request is a silent emergency call according to the trigger of the judging unit.
17. The apparatus of claim 14, wherein the apparatus further comprises:
a fourth sending module, configured to send a media renegotiation message to the terminal, where the media renegotiation message carries video media information and second media attribute information of the emergency call processing center, and the second media attribute information indicates that the emergency call processing center only receives media data;
and the fourth receiving module is used for receiving the image information in the current environment of the terminal, which is sent by the terminal.
18. An emergency call processing center, characterized in that it comprises means for implementing a VoLTE-based emergency call according to any one of claims 14 to 17.
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| CN109547649A (en) * | 2019-01-23 | 2019-03-29 | 广东小天才科技有限公司 | Emergency call method and device of call terminal, call terminal and storage medium |
| CN114584654A (en) * | 2022-03-11 | 2022-06-03 | 珠海读书郎软件科技有限公司 | Intelligent equipment quick calling system and method |
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| CN101242609A (en) * | 2008-02-15 | 2008-08-13 | 深圳华为通信技术有限公司 | Communication device and method for transmitting emergent information |
| CN102281517B (en) * | 2010-06-13 | 2015-05-13 | 中兴通讯股份有限公司 | Non-voice emergency call control method, IP multimedia subsystem and P-CSCF (Proxy Call Session Control Function) |
| CN102740227A (en) * | 2012-06-18 | 2012-10-17 | 中兴通讯股份有限公司 | Method and device for emergency call |
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