CN105991573A - Calling method and Internet protocol multimedia system IMS domain network side equipment - Google Patents
Calling method and Internet protocol multimedia system IMS domain network side equipment Download PDFInfo
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Abstract
An embodiment of the invention discloses a calling method which is applied to Internet protocol multimedia system IMS domain network side equipment. The method comprises the following steps of receiving a first calling request, wherein the first calling request carries a calling number and a called public service cornet; acquiring an area identification corresponding to the calling number, wherein the area identification is used to represent an attribution area of the calling number; adding the area identification in the first calling request and generating a second calling request; sending the second calling request to circuit switching CS domain network side equipment corresponding to the attribution area so as to indicate the CS domain network side equipment to call the called public service cornet corresponding to the attribution area. The embodiment of the invention simultaneously discloses the Internet protocol multimedia system IMS domain network side equipment.
Description
Technical Field
The invention relates to the field of network communication, in particular to a calling method and an internet protocol multimedia system (IMS) domain network side device.
Background
With the continuous development of communication technology, a brand new Multimedia service form, namely an IP Multimedia Subsystem (IMS), arises, which can meet the requirements of the current terminal customers for more novel and diversified Multimedia services, not only can implement network telephone services, but also can manage network resources, user resources and application resources more effectively.
Taking the network telephone service as an example, when a user encounters an emergency in a B area of a city a, the user needs to call the public service short number 110 through a terminal, wherein a number corresponding to the terminal is 001 plus 12345, after receiving a call request of the user, the IMS system determines that a home location of the calling number is a city a according to the calling number 001 plus 12345 carried in the call request, then the IMS system sends the call request to a network side device in a Circuit Switching (CS) domain, and the CS domain network side device processes the call request and sends the call request to a 110 headquarters of the city a, at this time, after receiving the call request, the 110 headquarters of the city a needs to manually inquire and dial the calling number 001 plus 12345 of the 110 specifically belonging to the B area of the city a, and then forwards the call request to a 110 branch of the B area, which can be seen that, in the above-mentioned call process, the call request of the user cannot be directly sent to the 110 branch of the B area of the city a where the terminal is located, however, the user needs to wait for a long time before the call request can be sent to the corresponding called party, and during the waiting period, the emergency situation encountered by the user may be further serious or some accident may occur, thereby causing a series of bad results.
Therefore, the prior art has the technical problem that the call system has low processing efficiency on the call request.
Disclosure of Invention
In view of this, embodiments of the present invention are expected to provide a calling method and an internet protocol multimedia system IMS domain network side device, which are used to directly call a called public service short number corresponding to a home domain of a calling number, improve the processing efficiency of a calling system on a call request, and provide good user experience.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for calling, where the method includes: receiving a first call request, wherein the first call request carries a calling number and a called public service short number; obtaining an area identifier corresponding to the calling number, wherein the area identifier is used for representing an attribution area of the calling number; adding the area identification in the first call request to generate a second call request; and sending the second call request to the Circuit Switching (CS) domain network side equipment corresponding to the home region to indicate the CS domain network side equipment to call the called public service short number corresponding to the home region.
Further, the obtaining the area identifier corresponding to the calling number includes: inquiring an area character string corresponding to the calling number in a preset user database; and obtaining the corresponding area identification according to the area character string.
Further, the obtaining the corresponding area identifier according to the area character string includes: and obtaining the corresponding area identification according to the corresponding relation between the pre-stored area character string and the area identification.
Further, the adding the area identifier in the first call request and generating a second call request include: and adding the area identification in the called public service short number to generate the second call request.
Further, the adding the area identifier in the first call request and generating a second call request include: and adding the area identifier to the area identifier bit in the first call request to generate the second call request.
In a second aspect, an embodiment of the present invention provides an IMS domain network side device in an internet protocol multimedia system, where the IMS domain network side device includes: a receiving unit, an obtaining unit, a generating unit and a sending unit; the receiving unit is configured to receive a first call request, where the first call request carries a calling number and a called public service short number; the obtaining unit is configured to obtain an area identifier corresponding to the calling number, where the area identifier is used to represent an affiliation area of the calling number; the generating unit is configured to add the area identifier to the first call request, and generate a second call request; the sending unit is configured to send the second call request to a circuit switched CS domain network side device corresponding to the home region, so as to instruct the CS domain network side device to call the called public service short number corresponding to the home region.
Further, the obtaining unit is specifically configured to query an area character string corresponding to the calling number in a preset user database; and obtaining the corresponding area identification according to the area character string.
Further, the obtaining unit is specifically configured to obtain the corresponding area identifier according to a correspondence between a pre-stored area character string and an area identifier.
Further, the generating unit is specifically configured to add the area identifier to the called public service short number, and generate the second call request.
Further, the generating unit is specifically configured to add the area identifier to an area identifier bit in the first call request, and generate the second call request.
The calling method and the IMS domain network side equipment provided by the embodiment of the invention have the advantages that when a terminal calls a called public service short number, the IMS domain network side equipment obtains the area identification of a calling number corresponding to the terminal, adds the area identification into a first calling request, generates a second calling request carrying the area identification, sends the second calling request to CS domain network side equipment in a home region corresponding to the area identification, and calls the called public service short number in the home region through the CS domain network side equipment, so that the IMS domain network side equipment can quickly determine the home region where the calling number is located as the IMS domain network side equipment obtains the area identification corresponding to the calling number, directly and quickly calls the called public service short number in the home region of the calling number, therefore, the processing efficiency of the calling system to the calling request is effectively improved, and good user experience is provided.
Drawings
FIG. 1 is a system architecture diagram of a paging system in an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for making a call by the call system according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for calling a public service short number 110 by the calling system according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for a network side device in an IMS domain to perform a call according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an IMS domain network side device in an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
An embodiment of the present invention provides a call system, and fig. 1 is a schematic diagram of a system architecture of the call system in the embodiment of the present invention, as shown in fig. 1, the system includes: a terminal 10, an IMS domain network side device 20 and a CS domain network side device 30; the terminal 10 is a device having a fixed home area, such as a fixed telephone.
With reference to the embodiment of the present invention, in the above system, the terminal 10 is configured to send a first call request to the IMS domain network side device 20, where the first call request carries a calling number and a called public service short number;
an IMS domain network side device 20, configured to receive a first call request; obtaining an area identifier corresponding to the calling number, wherein the area identifier is used for representing the home area of the calling number; adding an area identifier in the first call request to generate a second call request; sending the second call request to the CS domain network side device 30 corresponding to the home region to instruct the CS domain network side device 30 to call the called public service short number corresponding to the home region;
and the CS domain network side device 30 is configured to call a called public service short number corresponding to the home area where the calling number is located.
The following describes the process of the method for making a call in the above-mentioned call system in detail.
Fig. 2 is a schematic flow chart of a method for making a call by a call system in an embodiment of the present invention, as shown in fig. 2, the method includes:
s201: a terminal sends a first call request to IMS domain network side equipment, wherein the first call request carries a calling number and a called public service short number;
specifically, when the terminal needs to call the called public service short number, the terminal sends a first call request carrying the calling number and the called public service short number to the IMS domain network side device. For example, when a user in the area a, city, and B encounters an emergency and needs to call 110, at this time, the user dials 110 through the terminal, and the terminal carries the calling number 001-.
S202: according to the first call request, the IMS domain network side equipment queries a region character string corresponding to the calling number in a preset user database;
specifically, the IMS domain network side device analyzes the first call request to obtain a calling number, and then queries an area character string corresponding to the calling number in a preset user database; for example, after a Proxy Call Session Control Function (P-CSCF) device in the IMS domain network side device receives the SIP request, analyzing the SIP request to obtain the calling number 001 plus 12345, when the P-CSCF device in the IMS domain network side device checks that the calling number 001 plus 12345 is registered in the IMS network, the SIP request is sent to a calling side Service Call Session Control Function (S-CSCF) device in the IMS domain network side device, the S-CSCF device forwards the SIP request to an inquiring Call Session Control Function (I-CSCF) device in the IMS domain network side device, and the I-CSCF device inquires a region character string corresponding to a calling number 001 plus 12345 in a Home Subscriber Server (HSS) in the IMS domain network side device, wherein the region character string is 'Ash.Bq.china.com'.
In practical applications, when a terminal registers in an IMS network, the HSS stores both the number of the registered terminal and terminal home location information, and therefore, home location information of all numbers registered in the IMS network is stored in the HSS in advance.
It should be noted that the regional character string corresponding to the calling number is a character string in a custom format, which may be in the above format or in other formats, and the present invention is not limited specifically.
S203: the IMS domain network side equipment obtains a corresponding area identifier according to the area character string, wherein the area identifier is used for representing the home area of the calling number;
specifically, the IMS domain network side device obtains a corresponding area identifier according to a correspondence between a pre-stored area character string and an area identifier. For example, the I-CSCF device obtains that the area character string corresponding to the calling number 001-.
S204: the IMS domain network side equipment adds the area identification in the first call request to generate a second call request;
in practical applications, the specific implementation of S204 can be, but is not limited to, the following two types:
first, the IMS domain network side device adds an area identification prefix before the called public service short number or adds an area identification suffix after the called public service short number to generate a second call request. For example, the S-CSCF device adds the area identifier "01" corresponding to the calling number 001 plus 12345 to the called number 110, and converts the called number into 01110, or the S-CSCF device adds the area identifier "01" corresponding to the calling number 001 plus 12345 to the called number 110, and converts the called number into 11001, so as to generate a new SIP request, where the new SIP request carries the calling number 001 plus 12345 and the converted called number 01110 or 11001.
Secondly, an area identification bit is set in the call request to store an area identification corresponding to the home area of the calling number, and the IMS domain network side device may generate a second call request by adding the area identification at the area identification bit. For example, the S-CSCF device adds the area identifier "01" corresponding to the calling number 001 plus 12345 to the area identifier bit in the SIP request, and generates a new SIP request, where the new SIP request carries the calling number 001 plus 12345, the called number 110, and the area identifier "01".
Of course, S204 may have other specific embodiments, and the present invention is not limited in particular.
S205: the IMS domain network side equipment sends the second call request to CS domain network side equipment corresponding to the home region;
for example, the S-CSCF device sends a new SIP request including a region identifier "01" to a Media Gateway Control Function (MGCF) device, the MGCF device analyzes the new SIP request to obtain a calling number 001-.
S206: and the CS domain network side equipment calls the called public service short number corresponding to the home region.
Specifically, after receiving a second call request from the IMS domain network side device, the MSC device parses the second call request, obtains the called number, obtains the called public service short number and the area identifier of the calling number according to the called number, obtains the home area of the calling number according to the correspondence between the area identifier and the home area, and then directly calls the called public service short number in the home area. For example, the MSC device in the CS domain network side device analyzes the ISUP/BICC signaling request to obtain the called number 110 and the area identifier "01" of the calling number 001-.
The following describes the method flow described in one or more embodiments above, taking an example that a user calls 110 in the area a, city, and B where the user is located through a terminal.
FIG. 3 is a flowchart illustrating a method for calling a public service short number 110 by the calling system according to an embodiment of the present invention;
s301: the terminal sends an SIP request carrying the calling number 001 and 12345 and the called number 110 to the P-CSCF equipment;
s302: the P-CSCF device checks that the calling number 001 and 12345 are registered in the IMS network;
s303: the P-CSCF equipment sends the SIP request to the S-CSCF equipment;
s304: the S-CSCF equipment sends the SIP request to the I-CSCF equipment;
s305: the I-CSCF device queries the calling number 001-;
s306: the I-CSCF equipment sends the regional character string 'Ash.Bq.china.com' to the S-CSCF equipment;
s307: the S-CSCF equipment obtains a corresponding area identifier of '01' according to the corresponding relation between the pre-stored area character string and the area identifier;
s308: the S-CSCF equipment adds an area identification suffix '01' after the called number 110 to generate a new SIP request;
wherein, the called number is transformed into 11001, the new SIP request carries the calling number 001 and 12345 and the transformed called number 11001;
s309: the S-CSCF equipment sends the new SIP request to the MGCF equipment;
s310: MGCF equipment analyzes the new SIP request, and obtains the home region corresponding to the region identifier '01' as a region A and a region B;
s311: MGCF equipment converts the new SIP request into an ISUP/BICC signaling request;
s312: MGCF equipment sends ISUP/BICC signaling request to MSC equipment;
s313: MSC equipment analyzes the ISUP/BICC signaling request, obtains a called number of 110 and an attribution area of A city and B city;
s314: the MSC device calls 110 in the a city, B sector.
At this time, the calling system may directly access the call request of the terminal to 110 departments in the home region of the terminal.
Therefore, when the terminal calls the called public service short number, the IMS domain network side equipment obtains the area identification corresponding to the calling number, so that the attribution area where the calling number is located can be quickly determined, the IMS domain network side equipment can directly send the call request to the CS domain network side equipment corresponding to the attribution area of the calling number, and therefore the called public service short number in the attribution area can be directly called, the processing efficiency of the call system on the call request is effectively improved, and good user experience is provided.
Based on the same inventive concept, the embodiment of the present invention provides a method for calling, which is applied to the IMS domain network side device described in one or more embodiments above.
Fig. 4 is a flowchart illustrating a method for a network side device in an IMS domain to perform a call in an embodiment of the present invention, where as shown in fig. 4, the method includes:
s401: the method comprises the steps that IMS domain network side equipment receives a first call request, wherein the first call request carries a calling number and a called public service short number;
s402: the method comprises the steps that IMS domain network side equipment obtains an area identification corresponding to a calling number, wherein the area identification is used for representing the home area of the calling number;
in this embodiment, S402 may be: the IMS domain network side equipment inquires a region character string corresponding to the calling number in a preset user database; and obtaining a corresponding area identifier according to the area character string.
Further, S402 may be: and the IMS domain network side equipment acquires the corresponding area identifier according to the corresponding relation between the pre-stored area character string and the area identifier.
S403: the IMS domain network side equipment adds the area identification in the first call request to generate a second call request;
in this embodiment, S403 may be: the IMS domain network side equipment adds an area identifier in the called public service short number to generate a second call request; alternatively, 403 may be: and the IMS domain network side equipment adds the area identification to the area identification bit in the first call request to generate a second call request.
S404: and the IMS domain network side equipment sends the second call request to CS domain network side equipment corresponding to the home region so as to indicate the CS domain network side equipment to call the called public service short number corresponding to the home region.
Based on the same inventive concept, an embodiment of the present invention provides an IMS domain network side device, which is consistent with the IMS domain network side device described in one or more embodiments above.
Fig. 5 is a schematic structural diagram of an IMS domain network side device in an embodiment of the present invention, and as shown in fig. 5, the IMS domain network side device includes: a receiving unit 51, an obtaining unit 52, a generating unit 53, and a transmitting unit 54;
the receiving unit 51 is configured to receive a first call request, where the first call request carries a calling number and a called public service short number; an obtaining unit 52, configured to obtain an area identifier corresponding to the calling number, where the area identifier is used to represent an affiliation area of the calling number; a generating unit 53, configured to add an area identifier to the first call request, and generate a second call request; a sending unit 54, configured to send the second call request to the circuit-switched CS domain network side device corresponding to the home region, so as to instruct the CS domain network side device to call the called public service short number corresponding to the home region.
Further, the obtaining unit 52 is specifically configured to query an area character string corresponding to the calling number in a preset user database; and obtaining a corresponding area identifier according to the area character string.
Further, the obtaining unit 52 is specifically configured to obtain a corresponding area identifier according to a correspondence between a pre-stored area character string and an area identifier.
Further, the generating unit 53 is specifically configured to add an area identifier to the called public service short number, and generate the second call request.
Further, the generating unit 53 is specifically configured to add an area identifier to the area identifier bit in the first call request, and generate the second call request.
The receiving unit 51 and the sending unit 54 may be disposed in a transceiver of the IMS domain network side device, or may be disposed in the sender and the receiver, respectively, and the obtaining unit 52 and the generating unit 53 may be disposed in a processor of the IMS domain network side device, such as a CPU, an ARM, or the like, or may be disposed in an embedded controller or a system-on-chip, for example, which is not limited in the present invention.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A calling method is applied to an Internet protocol multimedia system (IMS) domain network side device, and is characterized in that the method comprises the following steps:
receiving a first call request, wherein the first call request carries a calling number and a called public service short number;
obtaining an area identifier corresponding to the calling number, wherein the area identifier is used for representing an attribution area of the calling number;
adding the area identification in the first call request to generate a second call request;
and sending the second call request to the Circuit Switching (CS) domain network side equipment corresponding to the home region to indicate the CS domain network side equipment to call the called public service short number corresponding to the home region.
2. The method of claim 1, wherein the obtaining the area identifier corresponding to the calling number comprises:
inquiring an area character string corresponding to the calling number in a preset user database;
and obtaining the corresponding area identification according to the area character string.
3. The method according to claim 2, wherein said obtaining the corresponding zone id according to the zone string comprises:
and obtaining the corresponding area identification according to the corresponding relation between the pre-stored area character string and the area identification.
4. The method of claim 1, wherein adding the area identifier to the first call request and generating a second call request comprises:
and adding the area identification in the called public service short number to generate the second call request.
5. The method of claim 1, wherein adding the area identifier to the first call request and generating a second call request comprises:
and adding the area identifier to the area identifier bit in the first call request to generate the second call request.
6. An internet protocol multimedia system IMS domain network side device, comprising: a receiving unit, an obtaining unit, a generating unit and a sending unit; wherein,
the receiving unit is used for receiving a first call request, wherein the first call request carries a calling number and a called public service short number;
the obtaining unit is configured to obtain an area identifier corresponding to the calling number, where the area identifier is used to represent an affiliation area of the calling number;
the generating unit is configured to add the area identifier to the first call request, and generate a second call request;
the sending unit is configured to send the second call request to a circuit switched CS domain network side device corresponding to the home region, so as to instruct the CS domain network side device to call the called public service short number corresponding to the home region.
7. The IMS domain network side device according to claim 6, wherein the obtaining unit is specifically configured to query a preset user database for the area character string corresponding to the calling number; and obtaining the corresponding area identification according to the area character string.
8. The IMS domain network side device according to claim 7, wherein the obtaining unit is specifically configured to obtain the corresponding area identifier according to a correspondence between a pre-stored area character string and an area identifier.
9. The IMS domain network side device of claim 6, wherein the generating unit is specifically configured to add the area identifier to the called public service short number, and generate the second call request.
10. The IMS domain network side device according to claim 6, wherein the generating unit is specifically configured to add the area identifier to an area identifier bit in the first call request, and generate the second call request.
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| CN110366160A (en) * | 2019-06-27 | 2019-10-22 | 深圳市奥克多普科技有限公司 | A kind of plurality of SIM cards cluster card reading call method and system based on Cloud Server |
| CN110366160B (en) * | 2019-06-27 | 2021-12-17 | 深圳市奥克多普科技有限公司 | Multi-SIM card cluster card reading conversation method and system based on cloud server |
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