CN110768926A - Method and device for virtual user to be called in IMS (IP multimedia subsystem) - Google Patents
Method and device for virtual user to be called in IMS (IP multimedia subsystem) Download PDFInfo
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- CN110768926A CN110768926A CN201810824837.6A CN201810824837A CN110768926A CN 110768926 A CN110768926 A CN 110768926A CN 201810824837 A CN201810824837 A CN 201810824837A CN 110768926 A CN110768926 A CN 110768926A
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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
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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
- H04L65/1073—Registration or de-registration
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Abstract
The embodiment of the invention discloses a method and a device for a virtual user to be called in an IMS (IP multimedia subsystem), which can reduce the occupation of network bandwidth and shorten the network call delay. The method comprises the following steps: s1, when the virtual user is called, if the registration state of the virtual number corresponding to the virtual user is registered, acquiring the user information of the virtual user from a preset virtual registered user database; and S2, carrying out AS service triggering according to the user information.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and a device for a virtual user to be called in an IMS (Internet protocol multimedia Subsystem).
Background
There are a few short number users like 1254712 in the network, such user numbers are few, there is no real client, it is "unregistered" state in the network, but called frequency is high, S-CSCF device of Home domain IMS needs to use SAR/SAA message to obtain user data from HSS (Home Subscriber Server) device when user calls out each time, resulting in large amount of occupied network bandwidth, meanwhile, because the signaling bandwidth used by SAR (Server-Assignment-Request, Server Assignment Request)/SAA (Server-Assignment-Answer) message is almost 2 times of the bandwidth needed by all network elements between HSS and other network elements, it can increase network call delay.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the embodiment of the invention provides a method and a device for calling a virtual user in an IMS (IP multimedia subsystem).
On one hand, the embodiment of the invention provides a method for a virtual user to be called in an IMS, which comprises the following steps:
s1, when the virtual user is called, if the registration state of the virtual number corresponding to the virtual user is registered, acquiring the user information of the virtual user from a preset virtual registered user database;
and S2, performing AS (application Server) service triggering according to the user information.
On the other hand, an embodiment of the present invention provides an apparatus for a virtual user to be called in an IMS, including:
the system comprises an acquisition unit, a registration unit and a registration unit, wherein the acquisition unit is used for acquiring user information of a virtual user from a preset virtual registered user database if the registration state of a virtual number corresponding to the virtual user is registered after checking and knowing when the virtual user is called;
and the triggering unit is used for triggering the AS service according to the user information.
In a third aspect, an embodiment of the present invention provides an electronic device, including: a processor, a memory, a bus, and a computer program stored on the memory and executable on the processor;
the processor and the memory complete mutual communication through the bus;
the processor, when executing the computer program, implements the method described above.
In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the above method.
Compared with the prior art, the embodiment of the invention can avoid frequently acquiring the user information from the HSS when the virtual user is called, greatly reduce the frequency of sending SAR/SAA messages to the HSS by S-CSCF (Serving Call Session control Function), thereby effectively reducing the network load caused by the high-frequency calling of the virtual user in an IMS core network and shortening the network delay when the virtual user is called.
Drawings
Fig. 1 is a flowchart illustrating an embodiment of a method for a virtual user to be called in an IMS according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a device for a virtual subscriber to be called in an IMS according to the present invention;
FIG. 3 is a flow chart of an optimized virtual registered user call;
fig. 4 is a schematic structural diagram of another embodiment of a device for a virtual user to be called in an IMS according to the present invention;
fig. 5 is a schematic physical structure 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 described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the embodiments of the present invention.
Referring to fig. 1, the present embodiment discloses a method for a virtual user to be called in an IMS, including:
s1, when the virtual user is called, if the registration state of the virtual number corresponding to the virtual user is registered, acquiring the user information of the virtual user from a preset virtual registered user database;
in this embodiment, registration states of some virtual numbers are stored in advance, and when the registration state of a virtual number needs to be checked, the registration state of the virtual number can be determined by comparing the virtual number with the virtual number in which the registration state is stored in advance, that is, the registration state of the virtual number corresponding to the virtual number is taken as the registration state of the virtual number.
And S2, carrying out AS service triggering according to the user information.
Compared with the prior art, the embodiment of the invention can avoid frequently acquiring the user information from the HSS when the virtual user is called, greatly reduce the frequency of sending SAR/SAA messages to the HSS by the S-CSCF, thereby effectively reducing the network load caused by the high-frequency calling of the virtual user in the IMS core network and shortening the network delay when the virtual user is called.
On the basis of the foregoing method embodiment, the S1 may include:
after receiving an INVITE message from an I-CSCF (Interrogating Call Session Control Function), checking whether a prefix of a called number included in the INVITE message can be matched with any number in a preset virtual registered user list, wherein the virtual registered user list includes at least one virtual number;
if the called number prefix can be matched with one number in the virtual registered user list, determining that the user corresponding to the called number prefix is a virtual user, otherwise, if the called number prefix can not be matched with one number in the virtual registered user list, determining that the user corresponding to the called number prefix is not a virtual user.
On the basis of the foregoing method embodiment, the S1 may further include:
if the registration state of the virtual number corresponding to the virtual user is not registered, SAR/SAA information is used for collecting user information stored in HSS, the user information is stored in the virtual registered user database, the registration state of the virtual number corresponding to the virtual user is updated to be registered, and the user information of the virtual user is obtained from the virtual registered user database.
On the basis of the foregoing method embodiment, the user information may include private user identities PVI, public user identities PUI, initial filtering rules IFC, IFC corresponding priorities, and trigger conditions.
The core idea of the invention is that when a short number user in an IMS network is called, the user information (including PVI, PUI, IFC, and corresponding priority and triggering condition information of IFC) is collected and stored when the short number user is called for the first time, and in order to avoid that the user frequently reads data from HSS, the user uses the stored user information to trigger AS service when the user is called again, and SAR/SAA information does not need to be used again to obtain the user information.
As shown in fig. 2, the present invention is a design diagram of a device for a virtual user to be called in an IMS, where 4 functional modules shown in fig. 2 are added in total: the system comprises a virtual number checking module, a virtual registered user list management module, a data acquisition module, a virtual registered user data management module and 1 database: a virtual registered user database.
The virtual number checking module is used for calling the virtual registered user list management module when the S-CSCF receives the INVITE message from the I-CSCF, and further checking the registration state of the virtual number if the called number prefix is matched with any number in the virtual registered user list; if the prefix of the called number is not matched with any number in the virtual registered user list, the common number processing is carried out on the called number. (the device defines the virtual number 'register' as the user information obtained from HSS and the storage is completed, and 'unregistered' means that the user information is not stored in S-CSCF).
The virtual registered user list management module means that an operator network manager predefines virtual numbers in a virtual registered user list management module of the S-CSCF equipment according to service requirements, the registration state of the virtual numbers is an unregistered state after predefining, and the state is updated to a registered state after data acquisition and data storage are completed.
The data acquisition module is used for calling the data acquisition module when the virtual user is called, if the number in the virtual registered user list management module is in an unregistered state, acquiring user information stored in the HSS by using SAR/SAA messages, wherein the user information comprises priorities and trigger conditions corresponding to PVI, PUI, IFC and IFC.
The virtual registered user data management module is used for storing the registered state information of the user and is divided into two states of 'registered' and 'unregistered'; and receiving the virtual user information acquired by the data acquisition module, and storing the user information in a virtual registered user database.
The virtual registered user database means that user information which is subjected to virtual registration is stored in the database, and the virtual registered user data management module is responsible for writing information and calling when the S-CSCF triggers the AS.
Fig. 3 shows an optimized called flow of the virtual registered user:
step 401: calling a virtual number checking module, wherein after receiving an INVITE message from an I-CSCF, the S-CSCF checks whether the number is a virtual number, and at the moment, calling the virtual registered user list management module of the invention, and if the called number prefix is matched with any number in the virtual registered user list, further checking the registration state of the virtual number; if the prefix of the called number is not matched with any number in the virtual registered user list, the common number processing is carried out on the called number.
Step 402: if the prefix of the called number is not the number in the virtual registered user list, the processing is carried out according to the common flow, and whether the user is registered is judged by checking whether the S-CSCF equipment has user registration information.
Step 403: if the called number is not registered, HSS user data taking operation is carried out.
Step 404: the called number is registered or the operation of fetching user data in step 403 is completed, and the S-CSCF triggers the AS according to the information such AS the user IFC.
Step 405: if the called number is checked as a number in the list management module of the virtual registered user in step 401, a check of the registration status of the virtual number is performed, and the list management module of the virtual registered user stores the registration status of the user.
Step 406: if the virtual number is in the unregistered state, the data acquisition module is called, and the S-CSCF carries out user data fetching operation to the HSS.
Step 407: after S-CSCF gets user data from HSS, call the management module of the virtual registered user data, carry on the storage of the virtual registered user database, the information stored here is different from ordinary user' S storage information after finishing registering, because users have IP address, cut-in domain registered really, only store users PVI, PUI, IFC correspondent priority and trigger condition in the virtual registered user database; and the S-CSCF updates the number registration state in the virtual registered user list management module to be 'registered'.
Step 408: if the number in the list management module of the virtual registered user is in a "registered" state, or the storage of the database of the virtual registered user and the update of the number state in the list management module of the virtual registered user are completed, the data management module of the virtual registered user is called again to read the information of the priorities and the triggering conditions corresponding to the PVI, PUI, IFC and IFC of the user, and the step 404 is performed after the reading is completed.
In the embodiment, the process of the virtual user as the called party in the IMS network is comprehensively optimized and modified, and the corresponding priority and trigger condition data of PVI, PUI, IFC, and IFC acquired from the HSS when the virtual user is called for the first time are stored through 4 modules, which are newly added, including the virtual number checking module, the virtual registered user list management module, the data acquisition module, and the virtual registered user data management module, and the newly added virtual registered user database, and are called by each module. The method realizes the storage of effective data information of a virtual user in the S-CSCF without a real terminal, avoids the frequent acquisition of user information from the HSS when the virtual user is called, can greatly reduce the frequency of sending SAR/SAA messages to the HSS by the S-CSCF, and effectively reduces the network load caused by the high-frequency calling of the virtual user in the IMS core network; the network call delay can be shortened due to the reduction of network element nodes in the call flow, the call delay is increased by 70ms when one network element IP node is experienced in a laboratory environment, 2 network element IP nodes in the call signaling flow are reduced through the optimization of the flow, and the call delay is theoretically shortened by 140 ms.
Referring to fig. 4, the present embodiment discloses an apparatus for a virtual user to be called in an IMS, including:
the system comprises an acquisition unit 1, a registration unit and a registration unit, wherein the acquisition unit is used for acquiring user information of a virtual user from a preset virtual registered user database if the registration state of a virtual number corresponding to the virtual user is registered after checking and knowing when the virtual user is called;
and the triggering unit 2 is used for triggering the AS service according to the user information.
Specifically, when a virtual user is called, if it is checked that the registration state of a virtual number corresponding to the virtual user is registered, the obtaining unit 1 obtains user information of the virtual user from a preset virtual registered user database; and the triggering unit 2 triggers the AS service according to the user information.
Compared with the prior art, the embodiment of the invention can avoid frequently acquiring the user information from the HSS when the virtual user is called, greatly reduce the frequency of sending SAR/SAA messages to the HSS by the S-CSCF, thereby effectively reducing the network load caused by the high-frequency calling of the virtual user in the IMS core network and shortening the network delay when the virtual user is called.
On the basis of the foregoing device embodiment, the obtaining unit may be specifically configured to:
after receiving an INVITE message from an I-CSCF, checking whether a called number prefix included in the INVITE message can be matched to any number in a preset virtual registered user list, wherein the virtual registered user list includes at least one virtual number;
if the called number prefix can be matched with one number in the virtual registered user list, determining that the user corresponding to the called number prefix is a virtual user, otherwise, if the called number prefix can not be matched with one number in the virtual registered user list, determining that the user corresponding to the called number prefix is not a virtual user.
On the basis of the foregoing embodiment of the apparatus, the obtaining unit may be further configured to:
if the registration state of the virtual number corresponding to the virtual user is not registered, SAR/SAA information is used for collecting user information stored in HSS, the user information is stored in the virtual registered user database, the registration state of the virtual number corresponding to the virtual user is updated to be registered, and the user information of the virtual user is obtained from the virtual registered user database.
On the basis of the foregoing device embodiment, the user information may include PVI, PUI, IFC corresponding priority, and trigger condition.
The apparatus for the virtual user to be called in the IMS of this embodiment may be configured to execute the technical solution of the foregoing method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 5 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 5, the electronic device may include: a processor 11, a memory 12, a bus 13, and a computer program stored on the memory 12 and executable on the processor 11;
the processor 11 and the memory 12 complete mutual communication through the bus 13;
when the processor 11 executes the computer program, the method provided by the foregoing method embodiments is implemented, for example, including: when a virtual user is called, if the registration state of a virtual number corresponding to the virtual user is registered through checking, acquiring user information of the virtual user from a preset virtual registered user database; and triggering the AS service according to the user information.
An embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method provided by the foregoing method embodiments, and for example, the method includes: when a virtual user is called, if the registration state of a virtual number corresponding to the virtual user is registered through checking, acquiring user information of the virtual user from a preset virtual registered user database; and triggering the AS service according to the user information.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application 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, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. 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.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention is not limited to any single aspect, nor is it limited to any single embodiment, nor is it limited to any combination and/or permutation of these aspects and/or embodiments. Moreover, each aspect and/or embodiment of the present invention may be utilized alone or in combination with one or more other aspects and/or embodiments thereof.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. A method for a virtual user to be called in an IMS (IP multimedia System), which is characterized by comprising the following steps:
s1, when the virtual user is called, if the registration state of the virtual number corresponding to the virtual user is registered, acquiring the user information of the virtual user from a preset virtual registered user database;
and S2, triggering the AS service of the application server according to the user information.
2. The method according to claim 1, wherein the S1 includes:
after receiving an INVITE message from an inquiring call session control function (I-CSCF), checking whether a called number crown contained in the INVITE message can be matched with any number in a preset virtual registered user list, wherein the virtual registered user list comprises at least one virtual number;
if the called number prefix can be matched with one number in the virtual registered user list, determining that the user corresponding to the called number prefix is a virtual user, otherwise, if the called number prefix can not be matched with one number in the virtual registered user list, determining that the user corresponding to the called number prefix is not a virtual user.
3. The method according to claim 2, wherein the S1 further comprises:
if the registration state of the virtual number corresponding to the virtual user is not registered, acquiring user information stored in a Home Subscriber Server (HSS) by using a server assignment request Synthetic Aperture Radar (SAR)/server assignment response (SAA) message, storing the user information in a virtual registered user database, updating the registration state of the virtual number corresponding to the virtual user to be registered, and acquiring the user information of the virtual user from the virtual registered user database.
4. The method of claim 1, wherein the user information comprises private user identities (PVIs), Public User Identities (PUIs), initial filtering rules (IFCs), IFC corresponding priorities and trigger conditions.
5. An apparatus for a virtual subscriber to be called in an IMS, comprising:
the system comprises an acquisition unit, a registration unit and a registration unit, wherein the acquisition unit is used for acquiring user information of a virtual user from a preset virtual registered user database if the registration state of a virtual number corresponding to the virtual user is registered after checking and knowing when the virtual user is called;
and the triggering unit is used for triggering the AS service of the application server according to the user information.
6. The apparatus according to claim 5, wherein the obtaining unit is specifically configured to:
after receiving an INVITE message from an inquiring call session control function (I-CSCF), checking whether a called number crown contained in the INVITE message can be matched with any number in a preset virtual registered user list, wherein the virtual registered user list comprises at least one virtual number;
if the called number prefix can be matched with one number in the virtual registered user list, determining that the user corresponding to the called number prefix is a virtual user, otherwise, if the called number prefix can not be matched with one number in the virtual registered user list, determining that the user corresponding to the called number prefix is not a virtual user.
7. The apparatus of claim 6, wherein the obtaining unit is further configured to:
if the registration state of the virtual number corresponding to the virtual user is not registered, acquiring user information stored in a Home Subscriber Server (HSS) by using a server assignment request Synthetic Aperture Radar (SAR)/server assignment response (SAA) message, storing the user information in a virtual registered user database, updating the registration state of the virtual number corresponding to the virtual user to be registered, and acquiring the user information of the virtual user from the virtual registered user database.
8. The apparatus of claim 5, wherein the user information comprises private user identities (PVIs), Public User Identities (PUIs), initial filtering rules (IFCs), IFC corresponding priorities and trigger conditions.
9. An electronic device, comprising: a processor, a memory, a bus, and a computer program stored on the memory and executable on the processor;
the processor and the memory complete mutual communication through the bus;
the processor, when executing the computer program, implements the method of any of claims 1-4.
10. A non-transitory computer-readable storage medium, characterized in that the storage medium has stored thereon a computer program which, when executed by a processor, implements the method of any one of claims 1-4.
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| CN110768926B (en) | 2022-03-29 |
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