CN111328062A - VoLTE emergency call connection method and device - Google Patents
VoLTE emergency call connection method and device Download PDFInfo
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- CN111328062A CN111328062A CN201811531475.8A CN201811531475A CN111328062A CN 111328062 A CN111328062 A CN 111328062A CN 201811531475 A CN201811531475 A CN 201811531475A CN 111328062 A CN111328062 A CN 111328062A
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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
- H04W76/50—Connection management for emergency connections
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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
- H04L65/1069—Session establishment or de-establishment
Abstract
The embodiment of the invention provides a connection method and a device of a VoLTE emergency call, wherein the method comprises the following steps: receiving a telephone number dialed by a terminal; and if the telephone number is judged to be the emergency telephone, returning an emergency session initiation signaling to the terminal, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiation signaling. According to the method and the device provided by the embodiment of the invention, after the SBC equipment receives the telephone number dialed by the terminal, the SBC equipment directly judges whether the telephone number is an emergency telephone, and directly returns an emergency session initiation signaling to the terminal when the telephone number is the emergency telephone, and does not send a request for establishing a packet domain and a wireless network resource to the PCRF, so that the VoLTE emergency telephone access flow is reduced, the VoLTE emergency telephone connection speed is improved, and the user experience is optimized.
Description
Technical Field
The embodiment of the invention relates to the technical field of VoLTE core networks, in particular to a method and a device for connecting a VoLTE emergency call.
Background
The Voice over Long-Term Evolution (lte) is a Voice service provided based on a 4G packet domain, and compared with the traditional 2/3G Voice, the Voice over Long-Term Evolution (lte) has the characteristics of high tone quality, low delay and the like, and is a strategic purpose for each operator to realize migration of 2G Voice to a 4G network and finally replanize 2G excellent frequency.
Currently, a large number of legacy voice users have migrated to VoLTE networks. However, for various reasons, the emergency phones (e.g., 110, 119, 120, etc.) of the VoLTE network are still connected by dropping 2/3G network from the 4G network, which greatly increases the time delay for the emergency phone of the user to access the emergency rescue center and reduces the customer perception. In the 3GPP (3rd Generation Partnership Project) specification, an emergency number access scheme based on VoLTE networks has been determined, which greatly shortens the connection delay compared to the 2/3G voice fallback scheme.
However, when the existing network implements the VoLTE emergency number access based on the 3GPP, it is necessary to establish a network bearer resource of a general telephone for the user first, and after the network bearer resource is successfully established, the VoLTE terminal is instructed to initiate a subsequent emergency telephone flow, which increases the link and the connection time of the signaling flow of the VoLTE emergency telephone for accessing the network to a certain extent, thereby causing negative effects to the user experience.
Disclosure of Invention
The embodiment of the invention provides a connection method and a connection device of a VoLTE emergency call, which are used for solving the problems of redundant signaling flow and long connection time of the VoLTE emergency call accessed to a network.
In a first aspect, an embodiment of the present invention provides a method for connecting a VoLTE emergency call, including:
receiving a telephone number dialed by a terminal;
and if the telephone number is judged to be the emergency telephone, returning an emergency session initiation signaling to the terminal, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiation signaling.
In a second aspect, an embodiment of the present invention provides a method for connecting a VoLTE emergency call, including:
dialing a telephone number so that a session edge controller can receive the telephone number, and returning an emergency session initiation signaling to a terminal when judging that the telephone number is an emergency call;
if the emergency conversation initiating signaling is received, an emergency telephone process is initiated to connect the telephone number.
In a third aspect, an embodiment of the present invention provides a device for turning on a VoLTE emergency call, including:
the receiving unit is used for receiving the telephone number dialed by the terminal;
and the judging unit is used for returning an emergency session initiating signaling to the terminal if the telephone number is judged to be the emergency telephone, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiating signaling.
In a fourth aspect, an embodiment of the present invention provides a device for turning on a VoLTE emergency call, including:
the sending unit is used for dialing a telephone number so that the session edge controller can receive the telephone number and return an emergency session initiation signaling to the terminal when judging that the telephone number is an emergency telephone;
and the execution unit is used for initiating an emergency telephone process and connecting the telephone number if the emergency session initiation signaling is received.
In a fifth aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a bus, where the processor and the communication interface, the memory complete communication with each other through the bus, and the processor may call logic instructions in the memory to perform the steps of the method as provided in the first aspect or the second aspect.
In a sixth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the method as provided in the first or second aspect.
According to the method and the device for connecting the VoLTE emergency call, after the SBC equipment receives the telephone number dialed by the terminal, whether the telephone number is the emergency call is directly judged, the emergency session initiation signaling is directly returned to the terminal when the telephone number is the emergency call, and the request for establishing the packet domain and the wireless network resource is not sent to the PCRF any more, so that the VoLTE emergency call access flow is reduced, the VoLTE emergency call connection speed is improved, and the user experience is optimized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a connection method of a VoLTE emergency call according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for connecting a VoLTE emergency call according to another embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for connecting a VoLTE emergency call according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a connection device of a VoLTE emergency call according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a connection device for a VoLTE emergency call according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Aiming at the problem that when the VoLTE emergency number is accessed based on 3GPP, network bearing resources of a common telephone need to be established for a user firstly, after the network bearing resources are established successfully, a VoLTE terminal is instructed to initiate a subsequent emergency telephone flow, the link and the connection time of a signaling flow of the VoLTE emergency telephone accessing to a network are increased to a certain extent, and negative influence is caused to user experience, the embodiment of the invention provides a connection method of the VoLTE emergency telephone. Fig. 1 is a flowchart illustrating a method for connecting a VoLTE emergency call according to an embodiment of the present invention, and as shown in fig. 1, an execution subject of the method is a Session Border Controller (SBC). The method comprises the following steps:
and 110, receiving the telephone number dialed by the terminal.
Specifically, the terminal is a terminal device having a VoLTE communication function, and after dialing a phone number, the phone number dialed by the terminal is transmitted to an SBC device of an IMS (IP Multimedia Subsystem) core network through a network. The SBC device is located at the edge of the IMS core Network, and in the VoLTE Network, the SBC device is a first node of a terminal access Network, and serves as a signaling proxy and a media proxy of the IMS core Network, and mainly aims to isolate the access Network and the IMS core Network, and implement functions of NAT (Network Address Translation) traversal, firewall traversal, QOS (Quality of service) control, Network security, mapping from tracking area codes to long distance area codes, and the like. In the embodiment of the invention, the SBC equipment is used for receiving the telephone number dialed by the terminal.
And 120, if the telephone number is judged to be the emergency telephone, returning an emergency session initiation signaling to the terminal, so that the terminal can initiate an emergency telephone process and access the telephone number after receiving the emergency session initiation signaling.
Specifically, after receiving a telephone number dialed by the terminal, the SBC device first determines whether the telephone number is an emergency telephone. Here, the telephone number is divided into two types, one is an emergency telephone, and the other is a normal telephone, such as a fire alarm telephone, an emergency call, a bandit telephone, etc., which can be used as an emergency telephone. If the telephone number dialed by the current terminal is confirmed to be the emergency telephone, the SBC equipment directly returns an emergency session initiation signaling to the terminal. Here, the emergency session initiation signaling is used to indicate that the telephone number currently dialed by the terminal is an emergency telephone, and an emergency telephone process is started. After receiving an emergency session initiation signaling returned by the SBC device based on the telephone number, the terminal acquires that the currently dialed telephone number is an emergency number, and starts an emergency telephone process to enable the telephone number to be connected.
Here, after the current phone number is confirmed to be an emergency phone, the emergency phone process executed by the terminal is not specifically limited in the embodiment of the present invention. For example, the emergency call process may include the terminal sending a request for establishing an emergency call default bearer to a network node mme (mobility management entity), establishing an emergency call default bearer, initiating an emergency registration process to an S-CSCF (serving CSCF), completing the emergency registration process, initiating an emergency call request to an SBC device, requesting to establish an emergency call dedicated bearer to a pcrf (policy and Charging Rules function), and sending a telephone number to an E-CSCF (emergency CSCF), so that the E-CSCF device converts the telephone number into a real access number according to the type of the telephone number and the content of 4G wireless information, and then sends the real access number to a corresponding routing connection.
According to the method provided by the embodiment of the invention, after the telephone number dialed by the terminal is received, whether the telephone number is an emergency telephone is directly judged, the emergency session initiation signaling is directly returned to the terminal when the telephone number is the emergency telephone, and the request for establishing the packet domain and the wireless network resource is not sent to the PCRF, so that the VoLTE emergency telephone access flow is reduced, the VoLTE emergency telephone connection speed is improved, and the user experience is optimized.
Based on the above embodiment, step 110 further includes: if the telephone number is judged to be the ordinary telephone, the ordinary telephone process is initiated to allow the terminal to be connected with the telephone number.
Specifically, after receiving a telephone number dialed by the terminal, the SBC device first determines whether the telephone number is an emergency telephone. If the telephone number is not an emergency telephone, i.e. the telephone number is a normal telephone, the SBC device initiates a normal telephone flow, so that the terminal can make a call. Here, after confirming that the current phone number is a normal phone, the embodiment of the present invention does not specifically limit the normal phone flow executed by the SBC device. For example, the SBC device may send an AAR (AA-Request) message to the PCRF device, requesting to establish and reserve bearer resources dedicated to the packet domain and the plain voice telephone of the wireless network, and then the PCRF device returns an AAA (AA-Answer) to the SBC device, and notifies the SBC device that the network bearer resources of the plain telephone are successfully established. After the network bearing resource of the common telephone is successfully established, the SBC equipment sends the telephone number to the E-CSCF, so that the E-CSCF equipment converts the telephone number into a real access number according to the contents of the telephone number, the 4G wireless information and the like, and then sends the real access number to a corresponding route for connection.
Based on any of the above embodiments, step 120 specifically includes: if the telephone number exists in the preset emergency telephone list, the telephone number is confirmed to be an emergency telephone, and an emergency session initiating signaling is returned to the terminal, so that the terminal can initiate an emergency telephone process and call the telephone number after receiving the emergency session initiating signaling.
The preset emergency call list is a preset list containing emergency calls, and when judging whether the telephone number dialed by the terminal is an emergency call, the preset emergency call list is traversed, and if the emergency call consistent with the telephone number exists in the preset emergency call list, the telephone number is confirmed to be an emergency call. After the telephone number dialed by the terminal is determined to be an emergency telephone, the SBC equipment returns an emergency session initiation signaling to the terminal, so that the terminal can initiate an emergency telephone flow and connect the telephone number after receiving the emergency session initiation signaling.
Based on any of the above embodiments, fig. 2 is a schematic flowchart of a connection method of a VoLTE emergency call according to another embodiment of the present invention, and as shown in fig. 2, an execution subject of the method is a terminal, where the terminal is a terminal device with a VoLTE communication function. The method comprises the following steps:
and 210, dialing the telephone number so that the session edge controller can receive the telephone number, and returning an emergency session initiation signaling to the terminal when judging that the telephone number is an emergency call.
Specifically, after the terminal dials the telephone number, the telephone number dialed by the terminal is transmitted to the SBC device of the IMS core network through the network, and the SBC device receives the telephone number dialed by the terminal and determines whether the telephone number is an emergency call. Here, the telephone number is divided into two types, one is an emergency telephone, and the other is a normal telephone, such as a fire alarm telephone, an emergency call, a bandit telephone, etc., which can be used as an emergency telephone. If the SBC device determines that the telephone number dialed by the terminal is an emergency telephone, the SBC device directly returns an emergency session initiation signaling to the terminal. Here, the emergency session initiation signaling is used to indicate that the telephone number currently dialed by the terminal is an emergency telephone.
220, if receiving the emergency session initiation signaling, initiating an emergency call process and connecting the telephone number.
Specifically, if the SBC device determines that the telephone number is an emergency telephone, the SBC device returns an emergency session initiation signaling to the terminal. If the terminal receives the emergency session initiation signaling, the terminal knows that the currently dialed telephone number is an emergency number, and starts an emergency telephone process to enable the telephone number to be connected.
Here, after the current phone number is confirmed to be an emergency phone, the emergency phone process executed by the terminal is not specifically limited in the embodiment of the present invention. For example, the emergency call process may include the terminal sending a request for establishing an emergency call default bearer to a network node mme (mobility management entity), establishing an emergency call default bearer, initiating an emergency registration process to an S-CSCF (serving CSCF), completing the emergency registration process, initiating an emergency call request to an SBC device, requesting to establish an emergency call dedicated bearer to a pcrf (policy and Charging Rules function), and sending a telephone number to an E-CSCF (emergency CSCF), so that the E-CSCF device converts the telephone number into a real access number according to the type of the telephone number and the content of 4G wireless information, and then sends the real access number to a corresponding routing connection.
According to the method provided by the embodiment of the invention, after the SBC equipment receives the telephone number dialed by the terminal, the SBC equipment directly judges whether the telephone number is an emergency telephone, and directly returns an emergency session initiation signaling to the terminal when the telephone number is the emergency telephone, and does not send a request for establishing a packet domain and a wireless network resource to the PCRF, so that the VoLTE emergency telephone access flow is reduced, the VoLTE emergency telephone connection speed is improved, and the user experience is optimized.
Based on any of the above embodiments, step 220 specifically includes:
221, if receiving the emergency session initiation signaling, sending a request for establishing an emergency phone default bearer to the network node MME, so that the network node MME can establish the emergency phone default bearer.
Specifically, if the terminal receives the emergency session initiation signaling, the terminal knows that the currently dialed phone number is an emergency number, and starts an emergency phone procedure to enable the phone number to be connected. Here, the emergency call flow includes the steps of first, the terminal sending an emergency call default bearer setup request to the network node MME, where the emergency call default bearer setup request is used to request the MME to setup an emergency call default bearer. The MME is a key control node of a 3GPP protocol LTE network and is responsible for positioning, paging and the like of an idle mode terminal, and the MME is responsible for signaling processing. And the MME establishes the default bearer of the emergency telephone based on the telephone number of the emergency telephone after receiving the request for establishing the default bearer of the emergency telephone sent by the terminal.
222, initiating an emergency registration procedure to the S-CSCF.
Specifically, the emergency call flow also comprises the steps that the terminal initiates an emergency registration flow to the S-CSCF and receives registration success information returned by the S-CSCF. Here, the S-CSCF is in a core position in IMS network Session Control, and the S-CSCF can receive a registration request forwarded from a visited network through a P-CSCF (Proxy Call Session Control Function), perform user authentication in cooperation with an HSS (Home Subscriber Server), and download service data signed by a user from the HSS. The S-CSCF performs routing management on the calling side and the called side of the user so as to realize rich IMS service functions.
223, after the registration is successful, sending an emergency call request to the session edge controller, so that the session edge controller can send a request for establishing an emergency call dedicated bearer to the policy and charging rule function unit based on the emergency call request, and after the establishment of the emergency call dedicated bearer is completed, transmitting the telephone number to the E-CSCF to call the telephone number.
Specifically, after establishing an emergency phone default bearer and successfully performing emergency registration, the terminal sends an emergency phone request to the SBC device, where the emergency phone request is used to instruct the SBC device to establish an emergency phone dedicated bearer, and after receiving the emergency phone request, the SBC device sends a request for establishing the emergency phone dedicated bearer to a Policy and Charging Rules Function (PCRF), and the request for establishing the emergency phone dedicated bearer is used to request the PCRF device to establish the emergency phone dedicated bearer. After the PCRF equipment completes the establishment of the special bearer for the emergency telephone, the establishment completion information is returned to the SBC equipment, and after the SBC equipment confirms the establishment of the special bearer for the emergency telephone, the telephone number confirmed as the emergency telephone is sent to the E-CSCF, so that the E-CSCF equipment converts the telephone number into a real access number according to the telephone number type, the 4G wireless information and other contents, and then sends the real access number to a corresponding route for connection. Here, the E-CSCF has an emergency call session control function, and can perform emergency registration processing, emergency session establishment processing, and the like.
Based on any of the above embodiments, step 210 further includes: dialing a telephone number so that the session edge controller can receive the telephone number, and initiating a common telephone process when judging that the telephone number is a common telephone.
Specifically, after the terminal dials the telephone number, the telephone number dialed by the terminal is transmitted to the SBC device through the network, and the SBC device receives the telephone number dialed by the terminal and determines whether the telephone number is an emergency call. If the telephone number is not an emergency telephone, i.e. the telephone number is a normal telephone, the SBC device initiates a normal telephone flow, so that the terminal can make a call. Here, after confirming that the current phone number is a normal phone, the embodiment of the present invention does not specifically limit the normal phone flow executed by the SBC device. For example, the SBC device may send an AAR (AA-Request) message to the PCRF device, requesting to establish and reserve bearer resources dedicated to the packet domain and the plain voice telephone of the wireless network, and then the PCRF device returns an AAA (AA-Answer) to the SBC device, and notifies the SBC device that the network bearer resources of the plain telephone are successfully established. After the network bearing resource of the common telephone is successfully established, the SBC equipment sends the telephone number to the E-CSCF, so that the E-CSCF equipment converts the telephone number into a real access number according to the contents of the telephone number, the 4G wireless information and the like, and then sends the real access number to a corresponding route for connection.
Based on any of the above embodiments, fig. 3 is a schematic flowchart of a connection method of a VoLTE emergency call according to another embodiment of the present invention, as shown in fig. 3, the method includes:
in case the terminal (UE) has completed normal registration of the IMS network 301, the terminal dials 110 the emergency phone number, and the 110 number is sent to the SBC device of the IMS core network over the 4G packet network.
302, the SBC device determines whether the telephone number dialed by the user is in the preset emergency telephone list, and if not, the telephone number is a normal telephone, and the connection is performed according to the normal telephone flow.
303, if the phone number exists in the preset emergency phone list, that is, the phone number is an emergency phone, the SBC device sends an emergency session initiation signaling, that is, an SIP signaling message 380, back to the terminal to indicate that the phone number dialed by the terminal is an emergency phone, and the subsequent process is executed according to the emergency phone flow.
304, after receiving the emergency session initiation signaling, the terminal initiates a request for establishing an emergency call default bearer, i.e. a PDN connectivity request, to the MME.
305, after receiving the request for establishing the default bearer of the emergency phone, the MME device establishes the default bearer of the emergency phone for the emergency phone, and returns the PDN connectivity accept to confirm that the establishment of the default bearer of the emergency phone is completed.
306-.
The terminal initiates an emergency phone request to the SBC again after the emergency registration is successful 308.
309, after receiving the emergency call Request, the SBC device sends an AAR (AA-Request) message to the PCRF device, requesting to establish and reserve bearer resources dedicated to the ordinary voice call in the packet switched domain and the wireless network.
And 310, the PCRF device returns AAA (AA-Answer) to the SBC device to inform the SBC device that the network bearing resource of the ordinary telephone is successfully established.
The SBC device sends 311 the telephone number to the E-CSCF.
312, the E-CSCF device converts the telephone number into a real access number according to the contents of the telephone number and the 4G wireless information, and then sends the real access number to a corresponding routing connection.
According to the method provided by the embodiment of the invention, after the SBC equipment receives the telephone number dialed by the terminal, the SBC equipment directly judges whether the telephone number is an emergency telephone, and directly returns an emergency session initiation signaling to the terminal when the telephone number is the emergency telephone, and does not send a request for establishing a packet domain and a wireless network resource to the PCRF, so that the access flow of the VoLTE emergency telephone is reduced, the connection speed of the VoLTE emergency telephone is improved, and a large amount of precious packet and wireless bearing resources can be saved. With the large-area commercial use of the VoLTE service, the method has wide application space and great commercial value.
Based on any of the above embodiments, fig. 4 is a schematic structural diagram of a connection apparatus for a VoLTE emergency call according to an embodiment of the present invention, as shown in fig. 4, the connection apparatus includes a receiving unit 410 and a determining unit 420;
the receiving unit 410 is configured to receive a telephone number dialed by the terminal;
the determining unit 420 is configured to return an emergency session initiation signaling to the terminal if it is determined that the phone number is an emergency phone, so that the terminal can initiate an emergency phone process to connect the phone number after receiving the emergency session initiation signaling.
According to the device provided by the embodiment of the invention, after the telephone number dialed by the terminal is received, whether the telephone number is an emergency telephone is directly judged, the emergency session initiation signaling is directly returned to the terminal when the telephone number is the emergency telephone, and the request for establishing the packet domain and the wireless network resource is not sent to the PCRF, so that the VoLTE emergency telephone access flow is reduced, the VoLTE emergency telephone connection speed is improved, and the user experience is optimized.
Based on any of the above embodiments, the switch-on device further comprises a common connection unit;
and the common connection unit is used for initiating a common telephone process if the telephone number is judged to be the common telephone so as to allow the terminal to connect the telephone number.
Based on any of the above embodiments, the determining unit 420 is specifically configured to:
if the telephone number exists in the preset emergency telephone list, the telephone number is confirmed to be an emergency telephone, and an emergency session initiating signaling is returned to the terminal, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiating signaling.
Based on any of the above embodiments, fig. 5 is a schematic structural diagram of a connection apparatus for a VoLTE emergency call according to another embodiment of the present invention, as shown in fig. 5, the connection apparatus includes a transmitting unit 510 and an executing unit 520;
the sending unit 510 is configured to dial a phone number, so that the session edge controller can receive the phone number, and return an emergency session initiation signaling to the terminal when determining that the phone number is an emergency phone;
the execution unit 520 is configured to initiate an emergency call process and connect the phone number if the emergency session initiation signaling is received.
According to the device provided by the embodiment of the invention, after the SBC equipment receives the telephone number dialed by the terminal, the SBC equipment directly judges whether the telephone number is an emergency telephone, and directly returns an emergency session initiation signaling to the terminal when the telephone number is the emergency telephone, and does not send a request for establishing a packet domain and a wireless network resource to the PCRF, so that the VoLTE emergency telephone access flow is reduced, the VoLTE emergency telephone connection speed is improved, and the user experience is optimized.
Based on any of the above embodiments, the execution unit 520 is specifically configured to:
if the emergency session initiation signaling is received, sending a request for establishing an emergency telephone default bearer to a network node MME so that the network node MME can establish the emergency telephone default bearer;
initiating an emergency registration process to the S-CSCF;
after the registration is successful, an emergency call request is sent to the session edge controller, so that the session edge controller can send a request for establishing an emergency call dedicated bearer to the policy and charging rule function unit based on the emergency call request, and after the establishment of the emergency call dedicated bearer is completed, the telephone number is transmitted to the E-CSCF, and the telephone number is connected.
Based on any of the above embodiments, the sending unit 510 is further configured to dial a phone number, so that the session edge controller can receive the phone number, and initiate a normal phone process when determining that the phone number is a normal phone.
Fig. 6 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 6, the electronic device may include: a processor (processor)601, a communication Interface (Communications Interface)602, a memory (memory)603 and a communication bus 604, wherein the processor 601, the communication Interface 602 and the memory 603 complete communication with each other through the communication bus 604. The processor 601 may call a computer program stored on the memory 603 and operable on the processor 601 to execute the method for turning on the VoLTE emergency call provided by the above embodiments, for example, including: receiving a telephone number dialed by a terminal; and if the telephone number is judged to be the emergency telephone, returning an emergency session initiation signaling to the terminal, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiation signaling.
Furthermore, the processor 601 may also call a computer program stored on the memory 603 and operable on the processor 601 to execute the method for turning on the VoLTE emergency call provided by the above embodiments, for example, including: dialing a telephone number so that a session edge controller can receive the telephone number, and returning an emergency session initiation signaling to a terminal when judging that the telephone number is an emergency call; if the emergency conversation initiating signaling is received, an emergency telephone process is initiated to connect the telephone number.
In addition, the logic instructions in the memory 603 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to, when executed by a processor, perform the method for turning on a VoLTE emergency call provided in the foregoing embodiments, for example, the method includes: receiving a telephone number dialed by a terminal; and if the telephone number is judged to be the emergency telephone, returning an emergency session initiation signaling to the terminal, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiation signaling.
Furthermore, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to, when executed by a processor, perform the method for turning on a VoLTE emergency call provided in the foregoing embodiments, for example, including: dialing a telephone number so that a session edge controller can receive the telephone number, and returning an emergency session initiation signaling to a terminal when judging that the telephone number is an emergency call; if the emergency conversation initiating signaling is received, an emergency telephone process is initiated to connect the telephone number.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for connecting a VoLTE emergency call is characterized by comprising the following steps:
receiving a telephone number dialed by a terminal;
and if the telephone number is judged to be the emergency telephone, returning an emergency session initiation signaling to the terminal, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiation signaling.
2. The method of claim 1, wherein receiving the telephone number dialed by the terminal further comprises:
and if the telephone number is judged to be the common telephone, initiating a common telephone process for the terminal to connect the telephone number.
3. The method according to claim 1, wherein if it is determined that the phone number is an emergency phone, returning an emergency session initiation signaling to the terminal, so that the terminal can initiate an emergency phone process to connect the phone number after receiving the emergency session initiation signaling, specifically comprising:
if the telephone number exists in the preset emergency telephone list, the telephone number is confirmed to be an emergency telephone, and an emergency session initiating signaling is returned to the terminal, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiating signaling.
4. A method for connecting a VoLTE emergency call is characterized by comprising the following steps:
dialing a telephone number so that a session edge controller can receive the telephone number, and returning an emergency session initiation signaling to a terminal when judging that the telephone number is an emergency call;
if the emergency conversation initiating signaling is received, an emergency telephone process is initiated to connect the telephone number.
5. The method according to claim 4, wherein the initiating an emergency call procedure to connect the phone number if the emergency session initiation signaling is received specifically includes:
if the emergency session initiation signaling is received, sending a request for establishing an emergency telephone default bearer to a network node MME so that the network node MME can establish the emergency telephone default bearer;
initiating an emergency registration process to the S-CSCF;
after the registration is successful, an emergency call request is sent to the session edge controller, so that the session edge controller can send a request for establishing an emergency call dedicated bearer to the policy and charging rule function unit based on the emergency call request, and after the establishment of the emergency call dedicated bearer is completed, the telephone number is transmitted to the E-CSCF, and the telephone number is connected.
6. The method of claim 4, wherein the dialing the phone number to enable the session edge controller to receive the phone number and return an emergency session initiation signaling to the terminal when determining that the phone number is an emergency phone, further comprises:
dialing a telephone number so that the session edge controller can receive the telephone number, and initiating a common telephone process when judging that the telephone number is a common telephone.
7. A device for enabling a VoLTE emergency call, comprising:
the receiving unit is used for receiving the telephone number dialed by the terminal;
and the judging unit is used for returning an emergency session initiating signaling to the terminal if the telephone number is judged to be the emergency telephone, so that the terminal can initiate an emergency telephone process and connect the telephone number after receiving the emergency session initiating signaling.
8. A device for enabling a VoLTE emergency call, comprising:
the sending unit is used for dialing a telephone number so that the session edge controller can receive the telephone number and return an emergency session initiation signaling to the terminal when judging that the telephone number is an emergency telephone;
and the execution unit is used for initiating an emergency telephone process and connecting the telephone number if the emergency session initiation signaling is received.
9. An electronic device, comprising a processor, a communication interface, a memory and a bus, wherein the processor, the communication interface and the memory communicate with each other via the bus, and the processor can call logic instructions in the memory to execute the method according to any one of claims 1 to 6.
10. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 1 to 6.
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| CN201811531475.8A CN111328062A (en) | 2018-12-14 | 2018-12-14 | VoLTE emergency call connection method and device |
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| CN201811531475.8A CN111328062A (en) | 2018-12-14 | 2018-12-14 | VoLTE emergency call connection method and device |
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