CN111385784B - Communication establishment method and device for emergency call, network equipment and terminal - Google Patents
Communication establishment method and device for emergency call, network equipment and terminal Download PDFInfo
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- CN111385784B CN111385784B CN201811625751.7A CN201811625751A CN111385784B CN 111385784 B CN111385784 B CN 111385784B CN 201811625751 A CN201811625751 A CN 201811625751A CN 111385784 B CN111385784 B CN 111385784B
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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
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
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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
Abstract
A communication establishment method and device, network equipment and a terminal for an emergency call are provided, wherein the communication establishment method comprises the following steps: receiving non-emergency call request information sent by user equipment; when the non-emergency call request information is identified to carry an emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information; and modifying the emergency response information into non-emergency response information, and sending the non-emergency response information to the user equipment. The technical scheme provided by the invention can solve the compatibility problem that the IMS domain supports the emergency telephone service and the circuit domain does not support the emergency telephone service, and can improve the success rate of the emergency telephone call.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for establishing communication for an emergency call, a network device, and a terminal.
Background
Currently, in many countries and regions, there are situations where an operator network does not support making emergency calls in the Circuit Switched (CS) domain. Therefore, when a User Equipment (UE) dials an emergency call in the operator network, the User Equipment still needs to dial according to a normal call. For example, in the continental area of china, when the alarm telephone 110 is dialed in the circuit domain, the call is made according to a normal telephone.
However, as network deployment becomes more and more sophisticated, emergency telephone services based on Internet Protocol multimedia subsystem (IMS) domain have been commercialized in more and more countries and regions. In order to ensure the consistency of the type of the dialed emergency telephone number in the circuit domain and the IMS domain, the emergency telephone number is dialed in the circuit domain according to a non-emergency telephone (also called a normal telephone). The network then informs the UE that the emergency telephone number is still dialed in the IMS domain according to the normal telephone number.
Further, the network informs the UE that the emergency phone number should be dialed in an emergency phone dialing manner by replying 380 the response message, and the network supports an IMS domain-based emergency call service, so that the UE can dial the emergency phone number in the IMS domain in the emergency call manner. However, there is a possibility that an emergency call originated in the IMS domain may fail due to the network or the UE. At this time, according to the 3rd Generation Partnership Project (3 GPP) related protocol, the UE needs to switch to the circuit domain for emergency call dialing. If the network does not support the emergency call service of the circuit domain, the emergency call of the UE in the circuit domain will also fail, and finally the emergency call dialing will fail.
In the prior art, operators in relevant countries and regions require, in order to avoid emergency telephone call failures: when the UE is in the scene, the emergency telephone number which is failed in the IMS domain is switched back to the circuit domain and is converted into a common number for dialing. However, since the network has already converted the initially dialed ordinary telephone number into the emergency telephone number in the IMS domain, if the IMS domain fails and then the call is converted back to the circuit domain, the UE cannot know whether the circuit domain of the current network supports the emergency telephone, which may result in the emergency telephone call failing. Further, the above scheme does not comply with 3GPP related protocols. The compatibility issue of how the operator network handles the IMS domain supporting emergency telephony services, while the circuit domain does not support emergency telephony services, is becoming more and more urgent.
Disclosure of Invention
The invention solves the technical problem of how to solve the compatibility problem that the IMS domain supports the emergency telephone service and the circuit domain does not support the emergency telephone service, so as to improve the success rate of the emergency telephone call.
To solve the foregoing technical problem, an embodiment of the present invention provides a communication establishment method for an emergency call, including: receiving non-emergency call request information sent by user equipment; when the non-emergency call request information is identified to carry an emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information; and modifying the emergency response information into non-emergency response information, and sending the non-emergency response information to the user equipment.
Optionally, the non-emergency call request information is received by a first network unit, the emergency call process is completed through signaling interaction between the first network unit and a second network unit, and the emergency response information is modified into the non-emergency response information by the first network unit.
Optionally, the first network element and the second network element perform signaling interaction at least by using the following steps: modifying, by the first network element, the non-emergency call request information into emergency call request information; sending, by the first network element, the emergency call request information to the second network element; and sending emergency response information associated with the emergency call request information to the first network unit through the second network unit.
Optionally, the first network unit includes a first network sub-unit and a second network sub-unit, and the modifying the emergency response information into non-emergency response information and sending the non-emergency response information to the user equipment includes: modifying, by the first network subunit, the emergency response information to the non-emergency response information; sending, by the first network subunit, the non-emergency response information to the second network subunit; sending the non-emergency response information to the user equipment through the second network sub-unit.
In order to solve the above technical problem, an embodiment of the present invention further provides a communication establishment method for an emergency call, including: sending non-emergency call request information to a network, wherein the non-emergency call request information carries an emergency call number, and when the network identifies that the non-emergency call request information carries the emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information, and modifying the emergency response information into the non-emergency response information to send the non-emergency response information; and receiving non-emergency response information sent by the network.
Optionally, the non-emergency response information is obtained by modifying, by the first network element in the network, the emergency response information sent by the second network element.
To solve the foregoing technical problem, an embodiment of the present invention further provides a communication setup apparatus for an emergency call, including: the receiving module is suitable for receiving non-emergency call request information sent by user equipment; the execution module is suitable for executing an emergency call process to obtain emergency response information associated with the non-emergency call request information when recognizing that the non-emergency call request information carries an emergency call number; and the sending module is suitable for modifying the emergency response information into non-emergency response information and sending the non-emergency response information to the user equipment.
To solve the foregoing technical problem, an embodiment of the present invention further provides a communication setup apparatus for an emergency call, including: the system comprises a sending module, a receiving module and a sending module, wherein the sending module is suitable for sending non-emergency call request information to a network, the non-emergency call request information carries an emergency call number, and when the network identifies that the non-emergency call request information carries the emergency call number, the network executes an emergency call process to obtain emergency response information related to the non-emergency call request information, and modifies the emergency response information into non-emergency response information to send the non-emergency response information; and the receiving module is suitable for receiving the non-emergency response information sent by the network.
To solve the above technical problem, an embodiment of the present invention further provides a storage medium having stored thereon computer instructions, where the computer instructions execute the steps of the above method when executed.
In order to solve the foregoing technical problem, an embodiment of the present invention further provides a network device, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the computer instructions to perform the steps of the foregoing method.
In order to solve the foregoing technical problem, an embodiment of the present invention further provides a terminal, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the computer instructions to perform the steps of the foregoing method.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a communication establishment method for an emergency call, which comprises the following steps: receiving non-emergency call request information sent by user equipment; when the non-emergency call request information is identified to carry an emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information; and modifying the emergency response information into non-emergency response information, and sending the non-emergency response information to the user equipment. By the technical scheme provided by the embodiment of the invention, the non-emergency call information (such as non-emergency call request information) can be converted into the emergency call information in the IMS domain by the network, so that the emergency telephone number is dialed, and the compatibility problem that the IMS domain supports the emergency telephone service and the circuit domain does not support the emergency telephone service is solved. Compared with the prior art, the UE does not need to convert the ordinary telephone call into the emergency telephone call based on the 380 response information, so that the signaling interaction between the UE and the network side can be reduced, the emergency telephone dialing time delay can be reduced, the UE realization complexity can be reduced, and further, by adopting the embodiment of the invention, even if the emergency call of the IMS domain fails, the UE can be switched back to the circuit domain to dial the emergency telephone in the ordinary telephone dialing mode, and the success rate of the emergency telephone call can be improved.
Further, the non-emergency call request information is received through a first network unit, the emergency call process is completed through signaling interaction between the first network unit and a second network unit, and the emergency response information is modified into the non-emergency response information through the first network unit. By the technical scheme provided by the embodiment of the invention, when the network identifies that the telephone number dialed by the user is the emergency telephone number, the network unit at the network side can convert the emergency call information and the non-emergency call information, so that the UE does not need to execute the emergency call process, and the possibility is provided for reducing the implementation complexity of the UE and improving the success rate of the emergency telephone call.
Drawings
Fig. 1 is a flow diagram of a prior art approach for performing an emergency communication setup method using 380 response messages;
fig. 2 is a flowchart illustrating a communication setup method for an emergency call according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a communication setup method for an emergency call according to another embodiment of the present invention;
FIG. 4 is a signaling interaction diagram of an exemplary application scenario in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a communication setup apparatus for an emergency call according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a communication setup apparatus for an emergency call according to another embodiment of the present invention.
Detailed Description
As background art, if the IMS domain supports the emergency phone service and the circuit domain does not support the emergency phone service, the prior art scheme uses the network to send the indication information, and the UE re-initiates the emergency call flow of the IMS domain to perform the emergency call. If an emergency call to the IMS domain fails, it may result in the emergency telephone call failing.
Fig. 1 is a flow chart illustrating a method for performing an emergency communication setup using 380 response messages according to the prior art. As shown in fig. 1, the UE places a call in the IMS domain, sending non-emergency call request information (illustratively INVITE); after receiving the INVITE message, a Network Element (Network Element, NE, also called a Network Element) of a Proxy Call Session Control Function (P-CSCF) on the Network side forwards the INVITE message to a Serving Call Session Control Function (S-CSCF) Network Element, and if the S-CSCF Network Element detects that the INVITE message includes an emergency telephone number, feeds back 380 response information (shown as 380) to the P-CSCF Network Element.
Further, the P-CSCF network element sends the 380 response message to the UE to inform the UE that the phone number is an emergency phone number, and the network supports an emergency call based on the IMS domain. After receiving the 380 response message, the UE initiates an emergency registration (illustrated as register (sos)) to the emergency P-CSCF network element. Then, signaling is interacted between the UE and the network, until the UE receives Emergency confirmation information (shown as 200ok (sos)) from the P-CSCF network element, the UE initiates an Emergency Call request information (shown as invite (sos)) to the Emergency P-CSCF network element, and forwards the invite (sos) information to an Emergency Call Session Control Function (E-CSCF) network element.
Then, signaling is interacted between the UE and the E-CSCF network element, so that the E-CSCF network element sends the emergency 180 ringing (illustrated as 180ring (sos)) information and the emergency 200OK acknowledgement (illustrated as 200OK (sos)) information to the UE through the emergency P-CSCF network element. Further, the UE sends an emergency acknowledgement (shown as ack (sos)) message to the emergency P-CSCF network element, and the emergency P-CSCF network element forwards the message to the E-CSCF network element to complete the emergency call setup.
In the prior art, the network converts the telephone number originally initiated in the circuit domain and dialed according to the ordinary telephone into the emergency telephone number in the IMS domain for emergency call through the 380 response message. However, in this case, if the emergency call flow in the IMS domain is abnormal (e.g. an error response is received) and the emergency call fails, the UE needs to switch to the circuit domain to attempt.
Since the circuit domain does not support the emergency phone in some countries and regions, the UE needs to switch to the circuit domain again to the normal phone for dialing, which may result in the emergency phone call failure. In addition, the above technical solution does not conform to the 3GPP related communication protocol specification.
The embodiment of the invention provides a communication establishment method for an emergency call, which comprises the following steps: receiving non-emergency call request information sent by user equipment; when the non-emergency call request information is identified to carry an emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information; and modifying the emergency response information into non-emergency response information, and sending the non-emergency response information to the user equipment.
By the technical scheme provided by the embodiment of the invention, the non-emergency call information (such as non-emergency call request information) can be converted into the emergency call information in the IMS domain by the network, so that the emergency telephone number is dialed, and the compatibility problem that the IMS domain supports the emergency telephone service and the circuit domain does not support the emergency telephone service is solved. Compared with the prior art, the UE does not need to convert the ordinary telephone call into the emergency telephone call based on the 380 response information, so that the signaling interaction between the UE and the network side can be reduced, the emergency telephone dialing time delay can be reduced, the UE realization complexity can be reduced, and further, by adopting the embodiment of the invention, even if the emergency call of the IMS domain fails, the UE can be switched back to the circuit domain to dial the emergency telephone in the ordinary telephone dialing mode, and the success rate of the emergency telephone call can be improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 2 is a flowchart illustrating a communication setup method for an emergency call according to an embodiment of the present invention. The communication establishment method may be performed by the network side, for example, by each network element of the network side. A network element in this context refers to a network device that is capable of performing one or more functions independently. Specifically, the communication establishment method may include the steps of:
step S201, receiving non-emergency call request information sent by user equipment;
step S202, when recognizing that the non-emergency call request information carries an emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information;
step S203, the emergency response information is modified into non-emergency response information, and the non-emergency response information is sent to the user equipment.
More specifically, in step S201, the UE may transmit an emergency phone number to the network using non-emergency call request information (also referred to as normal call request information). Thereafter, the network may receive non-emergency call request information from the UE.
The emergency telephone number may include a fire alarm telephone 119, a patrol telephone 110, an emergency telephone 120, etc., which are not listed here.
In step S202, if the network recognizes that the non-emergency call request information carries an emergency call number, the network may execute an emergency call process, so that a network element on a network side converts the emergency call information into the non-emergency call information, and further obtains emergency response information associated with the non-emergency call request information.
In particular implementations, the emergency response information may include a plurality of signaling information for establishing an emergency telephone call. For example, emergency 180 ringing information, emergency 200OK information, etc.
In a specific implementation, the network may include a first network element and a second network element. The network may receive the non-emergency call request information via the first network element, and the emergency call procedure is performed via a signaling interaction between the first network element and a second network element.
In one embodiment, the network may modify the non-emergency call request information into emergency call request information by the first network element, after which the emergency call request information is sent by the first network element to the second network element. After receiving the emergency call request message, the second network element may send an emergency response message associated with the emergency call request message to the first network element.
In step S203, the first network element may modify the received emergency response information into non-emergency response information and transmit the non-emergency response information to the UE.
In a specific implementation, the first network element may include a first network sub-element and a second network sub-element. For example, the first network sub-element may be an S-CSCF network element, and the second network sub-element may be a P-CSCF network element; the second network element may be an E-CSCF.
In an embodiment, the S-CSCF network element may modify the emergency response information into the non-emergency response information, and then the S-CSCF network element may send the non-emergency response information to the P-CSCF network element. Further, the P-CSCF network element may send the non-emergency response information to the UE.
For example, the emergency response information is emergency 180 ringing information. The S-CSCF network element may modify the emergency 180 ringing information to the non-emergency 180 ringing information, and send the non-emergency 180 ringing information to the P-CSCF network element. Further, the P-CSCF network element may send the non-emergency 180 ringing information to the UE.
For another example, the emergency response information is emergency 200OK information. The S-CSCF network element may modify the emergency 200OK information to the non-emergency 200OK information and send the non-emergency 200OK information to the P-CSCF network element. Further, the P-CSCF network element may send the non-emergency 200OK message to the UE.
Further, if the UE receives a non-emergency 200OK message sent by the network, the UE may reply with a non-emergency confirmation message to the network. The S-CSCF network element in the network may convert the non-emergency acknowledgement information into an emergency acknowledgement information and send it to the E-CSCF, thereby completing the communication establishment procedure.
Fig. 3 is a flowchart illustrating a communication setup method for an emergency call according to another embodiment of the present invention. The communication establishment method may be performed by a UE.
Specifically, the communication establishment method may include the steps of:
step S301, sending non-emergency call request information to a network, wherein the non-emergency call request information carries an emergency call number, and when the network recognizes that the non-emergency call request information carries the emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information, and modifying the emergency response information into non-emergency response information to send the non-emergency response information;
step S302, receiving the non-emergency response information sent by the network.
More specifically, in step S301, the UE may transmit non-emergency call request information to the network in the circuit domain. The non-emergency call request information may carry an emergency call number.
When the network receives the non-emergency call request information, the emergency call number carried in the non-emergency call request information can be identified, and then the network can start an emergency call process so as to obtain emergency response information associated with the non-emergency call request information at a network side. Further, the emergency response information can be modified to be sent out as non-emergency response information.
In step S302, the UE may receive the non-emergency response information from the network. The non-emergency response information is obtained by the first network element in the network modifying the emergency response information sent by the second network element.
Those skilled in the art understand that the steps S301 to S302 can be regarded as execution steps corresponding to the steps S201 to S203 described in the above embodiment shown in fig. 2, and the two steps are complementary in terms of specific implementation principle and logic. Therefore, the explanation of the terms in this embodiment can refer to the description of the embodiment shown in fig. 2, and will not be repeated here.
The signaling interaction between the network device and the UE in the communication system using the embodiment of the present invention is further described below with reference to a typical application scenario.
Fig. 4 is a signaling interaction diagram of an exemplary application scenario according to an embodiment of the present invention. As shown in fig. 4, the network 2 may include P-CSCF, S-CSCF and E-CSCF network elements. After the user makes a call, the user equipment 1 performs operation S1, that is, sends non-emergency call request information (shown as INVITE) to a P-CSCF network element in the network 2 to establish a communication connection;
then, after receiving the INVITE message, the P-CSCF network element performs operation S2, that is, forwards the INVITE message to the S-CSCF network element;
further, after recognizing that the INVITE message carries an emergency phone number, the S-CSCF network element performs operation S3, that is, converts the INVITE message into an emergency call request message (shown as INVITE (sos)), and sends an INVITE (sos) message to the E-CSCF network element;
further, the user equipment 1 continues signaling interaction with the network 2 (the illustration is denoted by "…");
further, the E-CSCF network element performs operation S4, i.e., the E-CSCF network element sends emergency 180 ringing information (illustrated as 180ring (sos)) to the S-CSCF network element;
further, the S-CSCF network element performs operation S5, namely, converting the 180Ring (sos) information into non-emergency 180Ring information (illustrated as 180Ring), and sending the 180Ring information to the P-CSCF network element;
further, the P-CSCF network element performs operation S6, that is, sends the 180Ring message to the user equipment 1;
further, the E-CSCF network element performs operation S7, i.e. the E-CSCF network element sends an emergency 200OK message (illustrated as 200OK (sos)) to the S-CSCF network element;
further, the S-CSCF network element performs operation S8, that is, converts the 200OK (sos) message into a non-urgent 200OK message (illustrated as 200OK), and sends the 200OK message to the P-CSCF network element;
further, the P-CSCF network element performs operation S9, that is, sends the 200OK message to the user equipment 1;
further, the user equipment 1 performs operation S10, i.e. sends non-emergency acknowledgement information (illustrated as ACK) to the P-CSCF network element;
further, the P-CSCF network element performs operation S11, that is, forwards the ACK information to the S-CSCF network element;
further, the S-CSCF network element performs operation S12, converts the ACK information into an emergency acknowledgement (illustrated as ACK (sos)) information, and sends the ACK (sos) information to the E-CSCF network element to successfully establish communication.
Those skilled in the art understand that, for the network 2, the E-CSCF network element may send the 200OK (sos) information after sending the 180Ring (sos) information, in the signaling information circulation process, the S-CSCF sends the 200OK information after sending the 180Ring information, and the P-CSCF network element sends the 200OK information after sending the 180Ring information, where the schematic steps in fig. 4 do not represent the actual sending time of the signaling information. In addition, each network element in the network 2 is only schematically illustrated, and in practical applications, more embodiments may be changed, and details are not described here.
Therefore, by the technical scheme provided by the embodiment of the invention, the network element in the network side can realize the conversion between the non-emergency call information and the emergency call information, thereby solving the compatibility problem that the IMS domain supports the emergency telephone service and the circuit domain does not support the emergency telephone service; furthermore, the technical scheme provided by the embodiment of the invention can also reduce the complexity of user realization and improve the success rate of emergency telephone calling.
Fig. 5 is a schematic structural diagram of a communication setup apparatus for an emergency call according to an embodiment of the present invention. The communication establishing apparatus 5 for the emergency call (simply referred to as the communication establishing apparatus 5) may be used to implement the method solutions shown in fig. 2 and fig. 4, and is executed by the network side device.
Specifically, the communication establishing means 5 may include: a receiving module 51, adapted to receive non-emergency call request information sent by a user equipment; the execution module 52 is adapted to execute an emergency call process to obtain emergency response information associated with the non-emergency call request information when it is identified that the non-emergency call request information carries an emergency call number; and the sending module 53 is adapted to modify the emergency response information into non-emergency response information and send the non-emergency response information to the user equipment.
In a specific implementation, the non-emergency call request information may be received by a first network element, the emergency call process is completed through signaling interaction between the first network element and a second network element, and the emergency response information is modified into non-emergency response information by the first network element.
In a specific implementation, the first network element and the second network element may perform signaling interaction at least by using the following steps: modifying, by the first network element, the non-emergency call request information into emergency call request information; sending, by the first network element, the emergency call request information to the second network element; and sending emergency response information associated with the emergency call request information to the first network unit through the second network unit.
In a specific implementation, the first network unit includes a first network sub-unit and a second network sub-unit, and the sending module 53 may include: a modification sub-module 531 adapted to modify the emergency response information to the non-emergency response information by the first network sub-unit; a first sending submodule 532 adapted to send the non-emergency response information to the second network subunit via the first network subunit; a second sending submodule 533 adapted to send the non-emergency response information to the user equipment via the second network subunit.
For more details on the operation principle and the operation mode of the communication establishing apparatus 5, reference may be made to the related descriptions in fig. 2 and fig. 4, which are not described herein again.
Fig. 6 is a schematic structural diagram of a communication setup apparatus for an emergency call according to another embodiment of the present invention. The communication establishing means 6 of the emergency call (referred to as communication establishing means 6 for short) may be used to implement the method solutions shown in fig. 3 and 4, and is executed by the UE.
Specifically, the communication establishing means 6 may include: a sending module 61, adapted to send non-emergency call request information to a network, where the non-emergency call request information carries an emergency call number, and when the network recognizes that the non-emergency call request information carries the emergency call number, the network executes an emergency call process to obtain emergency response information associated with the non-emergency call request information, and modifies the emergency response information into non-emergency response information to send the non-emergency response information; a receiving module 62, adapted to receive the non-emergency response information sent by the network.
Wherein the non-emergency response information may be obtained by a first network element in the network modifying emergency response information sent by a second network element.
For more details on the operation principle and the operation mode of the communication establishing apparatus 6, reference may be made to the related description in fig. 3 and fig. 4, and details are not repeated here.
Further, the embodiment of the present invention further discloses a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the technical solutions of the methods in the embodiments shown in fig. 2 to fig. 4 are executed. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory. The computer readable storage medium may include ROM, RAM, magnetic or optical disks, and the like.
Further, an embodiment of the present invention further discloses a network device, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to execute the technical solutions of the methods in the embodiments shown in fig. 2 and fig. 4.
Further, an embodiment of the present invention further discloses a terminal, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the technical solutions of the methods in the embodiments shown in fig. 3 and fig. 4 when executing the computer instructions. Preferably, the terminal is a UE.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method for establishing communication for an emergency call, comprising:
receiving non-emergency call request information sent by user equipment;
when the non-emergency call request information is identified to carry an emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information;
modifying the emergency response information into non-emergency response information, and sending the non-emergency response information to user equipment;
receiving the non-emergency call request information through a first network unit, wherein the emergency call process is completed through signaling interaction between the first network unit and a second network unit, and the emergency response information is modified into non-emergency response information through the first network unit;
the first network unit comprises a first network sub-unit and a second network sub-unit, the first network sub-unit is an S-CSCF network element, the second network sub-unit is a P-CSCF network element, and the second network unit is an E-CSCF.
2. The communication setup method according to claim 1, wherein the first network unit and the second network unit perform signaling interaction at least by the following steps:
modifying, by the first network element, the non-emergency call request information into emergency call request information;
sending, by the first network element, the emergency call request information to the second network element;
and sending emergency response information associated with the emergency call request information to the first network unit through the second network unit.
3. The communication establishing method according to claim 1, wherein the modifying the emergency response information into non-emergency response information and sending the non-emergency response information to the user equipment comprises:
modifying, by the first network subunit, the emergency response information to the non-emergency response information;
sending, by the first network subunit, the non-emergency response information to the second network subunit;
sending the non-emergency response information to the user equipment through the second network sub-unit.
4. A method for establishing communication for an emergency call, comprising:
sending non-emergency call request information to a network, wherein the non-emergency call request information carries an emergency call number, and when the network identifies that the non-emergency call request information carries the emergency call number, executing an emergency call process to obtain emergency response information associated with the non-emergency call request information, and modifying the emergency response information into the non-emergency response information to send the non-emergency response information;
receiving non-emergency response information sent by the network;
the network receives the non-emergency call request information through a first network unit, completes the emergency call process through signaling interaction between the first network unit and a second network unit, and modifies the emergency response information into non-emergency response information through the first network unit;
the first network unit comprises a first network sub-unit and a second network sub-unit, the first network sub-unit is an S-CSCF network element, the second network sub-unit is a P-CSCF network element, and the second network unit is an E-CSCF.
5. The communication setup method according to claim 4, wherein the non-emergency response information is obtained by a first network element in the network modifying an emergency response information sent by a second network element.
6. A communication setup device for an emergency call, comprising:
the receiving module is suitable for receiving non-emergency call request information sent by user equipment;
the execution module is suitable for executing an emergency call process to obtain emergency response information associated with the non-emergency call request information when recognizing that the non-emergency call request information carries an emergency call number;
the sending module is suitable for modifying the emergency response information into non-emergency response information and sending the non-emergency response information to the user equipment;
receiving the non-emergency call request information through a first network unit, wherein the emergency call process is completed through signaling interaction between the first network unit and a second network unit, and the emergency response information is modified into non-emergency response information through the first network unit;
the first network unit comprises a first network sub-unit and a second network sub-unit, the first network sub-unit is an S-CSCF network element, the second network sub-unit is a P-CSCF network element, and the second network unit is an E-CSCF.
7. A communication setup device for an emergency call, comprising:
the system comprises a sending module, a receiving module and a sending module, wherein the sending module is suitable for sending non-emergency call request information to a network, the non-emergency call request information carries an emergency call number, and when the network identifies that the non-emergency call request information carries the emergency call number, the network executes an emergency call process to obtain emergency response information related to the non-emergency call request information, and modifies the emergency response information into non-emergency response information to send the non-emergency response information;
the receiving module is suitable for receiving non-emergency response information sent by the network;
the network receives the non-emergency call request information through a first network unit, completes the emergency call process through signaling interaction between the first network unit and a second network unit, and modifies the emergency response information into non-emergency response information through the first network unit;
the first network unit comprises a first network sub-unit and a second network sub-unit, the first network sub-unit is an S-CSCF network element, the second network sub-unit is a P-CSCF network element, and the second network unit is an E-CSCF.
8. A storage medium having stored thereon computer instructions, wherein the computer instructions when executed perform the steps of the method of any of claims 1 to 3 or any of claims 4 to 5.
9. A network device comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 1 to 3.
10. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of claim 4 or 5.
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