CN110121166A - A kind of call method for building up and system - Google Patents
A kind of call method for building up and system Download PDFInfo
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- CN110121166A CN110121166A CN201910449371.0A CN201910449371A CN110121166A CN 110121166 A CN110121166 A CN 110121166A CN 201910449371 A CN201910449371 A CN 201910449371A CN 110121166 A CN110121166 A CN 110121166A
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- Prior art keywords
- call
- ims
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- terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/20—Transfer of user or subscriber data
- H04W8/205—Transfer to or from user equipment or user record carrier
Abstract
This disclosure relates to field of communication technology, provide a kind of call method for building up, it include: that mobile IMS terminal sends registration request to Serving Call Status control function entity, the mobile IMS terminal is 4G multimode card terminal, and the registration request includes IMS number and 4G number corresponding with the IMS number；Serving Call Status control function entity stores the IMS number and 4G number corresponding with the IMS number, receives the call request corresponding with the IMS number that calling session control equipment is sent；When Serving Call Status control function entity judges that proxy Call State control function entity is malfunction, the call between the mobile IMS terminal and calling terminal is established according to 4G number corresponding with the IMS number.Correspondingly, the disclosure additionally provides a kind of converse and establishes system.
Description
Technical field
This disclosure relates to field of communication technology, in particular to a kind of call method for building up and system.
Background technique
IMS (IP Multimedia Subsystem, IP multimedia subsystem) technology provides multimedia for IP based network
The universal network framework of business, by CSCF (Call Session Control Function, call state control function),
MGCF (Media Gateway Control Function, Media Gateway Control Function), MGW (Media Gateway, media
Gateway), the functional entitys composition such as HSS (Home Subscriber Server, ownership place client server).Wherein, CSCF
Type includes P-CSCF (Proxy-CACF, proxy CSCF), I-CSCF (Interrogating CSCF inquires CSCF) and S-
CSCF (Serving CSCF, serving CSCF), they are SIP (Session Initiation Protocol, conversation initial
Agreement) server, for handling SIP signaling.
Mobile IMS terminal passes through GPRS (General Packet Radio Service, general packet radio service skill
Art) network or EPC network from P-CSCF to S-CSCF forward registration message, and guarantee mobile IMS terminal in quilt after succeeding in registration
It can successfully be addressed when crying, mobile IMS terminal needs to be always maintained at state of activation with S-CSCF.But when P-CSCF breaks down
When, the incoming call for calling mobile IMS terminal will be unable to establish call, cannot provide the user with good business experience.
It should be noted that the above description of the technical background be intended merely to it is convenient to the technical solution of the disclosure carry out it is clear,
Complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Cannot merely because these schemes in the disclosure
Background technology part is expounded and thinks that above-mentioned technical proposal is known to those skilled in the art.
Summary of the invention
The disclosure aims to solve at least one of the technical problems existing in the prior art, proposes a kind of call method for building up
And system.
In a first aspect, the embodiment of the present disclosure provides a kind of call method for building up, comprising:
Mobile IMS terminal sends registration request to Serving Call Status control function entity, and the mobile IMS terminal is 4G
Multimode card terminal, the registration request include IMS number and 4G number corresponding with the IMS number；
Serving Call Status control function entity stores the IMS number and 4G number corresponding with the IMS number, connects
Receive the call request corresponding with the IMS number that calling session control equipment is sent；
When Serving Call Status control function entity judges that proxy Call State control function entity is malfunction,
The call between the mobile IMS terminal and calling terminal is established according to 4G number corresponding with the IMS number.
Optionally, before the mobile IMS terminal sends registration request to Serving Call Status control function entity also
Include:
Mobile IMS terminal sends joint attach request to mobile management nodes functional entity；
Mobile management nodes functional entity sends position updating request to vision location according to the joint attach request and posts
Storage；
VLR Visitor Location Register is returned according to update request transmission position updating request to home location register
Joint adheres to confirmation message to mobile management nodes functional entity；
Mobile management nodes functional entity sends joint attachment confirmation message to the mobile IMS terminal.
Optionally, institute is established according to 4G number corresponding with the IMS number in Serving Call Status control function entity
Include: before stating the call between mobile IMS terminal and calling terminal
Serving Call Status control function entity sends position enquiring request according to 4G number corresponding with the IMS number
To home location register；
Serving Call Status control function entity receives the switching center equipment information that home location register is sent,
And call request is sent to the switching center equipment；
Switching center equipment sends call request to the mobile IMS end by mobile management nodes functional entity
End；
Sending call answering, which is responded to the mobile switching centre, after the mobile IMS terminal is fallen after rise to 3G/2G network sets
It is standby；
Serving Call Status control function entity receives the call answering response concurrent that switching center equipment is sent and send
The call answering is responded to calling session control equipment.
Optionally, the position updating request includes at least mobile management nodes functional entity information；
Position updating request is sent to visit according to the joint attach request in the mobile management nodes functional entity
After location register and the VLR Visitor Location Register is according to update request transmission position updating request to homing position
Before register further include:
VLR Visitor Location Register stores the mobile management nodes functional entity information, and creates and the mobile management section
Point functional entity has the SGs incidence relation between user under its command.
Optionally, the switching center equipment sends call request to described by mobile management nodes functional entity
Moving IMS terminal includes:
The switching center equipment sends call request to the shifting according to the SGs incidence relation obtained in advance
Dynamic management node functional entity；
The mobile management nodes functional entity sends call request to the mobile IMS terminal.
Second aspect, the embodiment of the present disclosure provide a kind of converse and establish system, comprising:
Mobile IMS terminal, for sending registration request to Serving Call Status control function entity, the mobile IMS is whole
End is 4G multimode card terminal, and the registration request includes IMS number and 4G number corresponding with the IMS number；
Serving Call Status control function entity, for storing the IMS number and No. 4G corresponding with the IMS number
Code receives the call request corresponding with the IMS number that calling session control equipment is sent, when judging agent call
When state control function entities are malfunction, the mobile IMS terminal is established according to 4G number corresponding with the IMS number
Call between calling terminal.
It optionally, further include mobile management nodes functional entity and VLR Visitor Location Register；
The mobile IMS terminal is also used to send joint attach request to mobile management nodes functional entity；
The mobile management nodes functional entity, for sending position updating request to visiing according to the joint attach request
Visit location register；Joint attachment confirmation message is sent to the mobile IMS terminal；
The VLR Visitor Location Register, for requesting to send position updating request to home location register according to the update
Device, and joint attachment confirmation message is returned to mobile management nodes functional entity.
It optionally, further include switching center equipment；
The Serving Call Status control function entity is also used to be sent according to 4G number corresponding with the IMS number
Position enquiring is requested to home location register, and the switching center equipment information that home location register is sent is received, and
Call request is sent to the switching center equipment, receives the call answering response concurrent that switching center equipment is sent
The call answering is sent to respond to calling session control equipment；
The switching center equipment, for sending call request to the shifting by mobile management nodes functional entity
Dynamic IMS terminal；
The mobile IMS terminal issues call answering after being also used to fall after rise to 3G/2G network and responds to the mobile switch
Central apparatus.
Optionally, the position updating request includes at least mobile management nodes functional entity information；
The VLR Visitor Location Register is also used to store the mobile management nodes functional entity information, and create with it is described
Mobile management nodes functional entity has the SGs incidence relation between user under its command.
Optionally, the switching center equipment is also used to be exhaled according to the SGs incidence relation transmission obtained in advance
Cry request to the mobile management nodes functional entity；The mobile management nodes functional entity is also used to send call request extremely
The mobile IMS terminal.
The disclosure has the advantages that
The call method for building up that the disclosure provides, mobile IMS terminal send registration request to Serving Call Status and control function
Energy entity, registration request includes IMS number and 4G number corresponding with IMS number, and Serving Call Status control function entity is deposited
IMS number and 4G number corresponding with IMS number are stored up, the corresponding with IMS number of calling session control equipment transmission is received
Call request, when Serving Call Status control function entity judge proxy Call State control function entity be malfunction
When, the call between mobile IMS terminal and calling terminal is established according to 4G number corresponding with IMS number.It can be exhaled in agency
When state control function entities being made to break down, the call between calling terminal and mobile IMS terminal is established.
Referring to following description and accompanying drawings, the particular implementation of the disclosure is disclosed in detail, specifies the original of the disclosure
Reason can be in a manner of adopted.It should be understood that embodiment of the present disclosure is not so limited in range.In appended power
In the range of the spirit and terms that benefit requires, embodiment of the present disclosure includes many changes, modifications and is equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Detailed description of the invention
In order to illustrate more clearly of the embodiment of the present disclosure or technical solution in the prior art, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Disclosed some embodiments for those skilled in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow diagram for call method for building up that the embodiment of the present disclosure provides；
Fig. 2 is the flow diagram for another call method for building up that the embodiment of the present disclosure provides；
Fig. 3 is the structural schematic diagram that system is established in a kind of call that the embodiment of the present disclosure provides.
Specific embodiment
To make those skilled in the art more fully understand the technical solution of the disclosure, with reference to the accompanying drawing in the disclosure
Technical solution carry out clear, complete description, it is clear that described embodiment is a part of this disclosure embodiment, without
It is whole embodiments.Based on the embodiment in the disclosure, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, belong to the disclosure protection range.
Those skilled in the art will understand that embodiment of the present disclosure can be implemented as a kind of system, device, equipment,
Method or computer program product.Therefore, the present disclosure may be embodied in the following forms, it may be assumed that complete hardware, complete soft
The form that part (including firmware, resident software, microcode etc.) or hardware and software combine.
Some proper nouns involved in the present embodiment are illustrated below:
P-CSCF is the point that UE (User Equipment, user equipment) first has to access when accessed domain roams, UE
The sip message passed in and out when accessed domain roams is intended to be equivalent to the boundary generation that Session Initiation Protocol defines by P-CSCF, P-CSCF
Manage server.I-CSCF is used to provide the entrance for arriving home network, by the topological diagram of home network to other network concealed,
And corresponding S-CSCF is found out for specific user by HSS, enter local service provider for UE roaming or external task
Communication center in network.When I-CSCF is connected to a request, it will route requests to corresponding S-CSCF.S-CSCF is to use
Family provides service.When UE registration, it is contacted with the S-CSCF of local domain, and local S-CSCF provides a user the scheduled clothes of user
Business.HSS is equivalent to the HLR in 2G network, stores S-CSCF relevant with an individual consumer and corresponding user profile.
Below with reference to several representative embodiments of the disclosure, the principle and spirit of the disclosure are illustrated in detail.
Fig. 1 is a kind of flow diagram for call method for building up that the embodiment of the present disclosure provides, as shown in Figure 1, this method
The following steps are included:
Step 101, mobile IMS terminal send registration request to Serving Call Status control function entity.
Step 102, Serving Call Status control function entity storage IMS number and 4G number corresponding with IMS number, connect
Receive the call request corresponding with IMS number that calling session control equipment is sent.
Step 103, when Serving Call Status control function entity judge proxy Call State control function entity for therefore
When barrier state, the call between mobile IMS terminal and calling terminal is established according to 4G number corresponding with IMS number.
Call method for building up provided in this embodiment, mobile IMS terminal send registration request to Serving Call Status and control
Functional entity, registration request include IMS number and 4G number corresponding with IMS number, Serving Call Status control function entity
Store IMS number and 4G number corresponding with IMS number, receive that calling session control equipment sends with IMS number pair
The call request answered, when Serving Call Status control function entity judges that proxy Call State control function entity is failure shape
When state, the call between mobile IMS terminal and calling terminal is established according to 4G number corresponding with IMS number.It can acted on behalf of
When call state control function entity breaks down, the call between calling terminal and mobile IMS terminal is established.
Fig. 2 is the flow diagram for another call method for building up that the embodiment of the present disclosure provides, as shown in Fig. 2, the party
Method the following steps are included:
Step 201, mobile IMS terminal send joint attach request to mobile management nodes functional entity.
Mobile IMS terminal is 4G multimode card terminal, and there are two numbers for tool: IMS number and 4G number.When mobile IMS is whole
After the booting of end, start the joint attachment flow of 4G multimode card, i.e. execution step 201.Joint attach request is joined with type of attachment
It counts, the type of attachment parameter that attach request is combined in the present embodiment indicates that the joint attach request is united EPS (E-
MailPagingSystem, global bidirection paging over network system)/IMSI (International Mobile Subscriber
Identification Number, international mobile subscriber identity) attach request, and type of attachment parameter instruction is issued and is somebody's turn to do
There is the mobile IMS terminal of joint attach request CS (Circuit Switched, circuit switching) to fall ability after rise.The present embodiment
There is the movement IMS terminal CS to fall ability after rise, can fall after rise to 3G/2G network to issue call answering response.
Step 202, mobile management nodes functional entity send position updating request to visiting position according to joint attach request
Set register.
Position updating request includes at least mobile management nodes functional entity information.
Mobile management nodes functional entity sends position updating request (SGsAP-LOCATION- according to joint attach request
UPDATE-REQUEST) to VLR Visitor Location Register.Optionally, position updating request include new LAI (position area identification code),
IMSI, mobile management nodes functional entity information (MME name) and Location Update Type (location updating type).
Step 203, VLR Visitor Location Register store mobile management nodes functional entity information, and create and mobile management section
Point functional entity has the SGs incidence relation between user under its command.
Step 204, VLR Visitor Location Register request to send position updating request to home location register according to updating, and
Joint attachment confirmation message is returned to mobile management nodes functional entity.
VLR Visitor Location Register is sent according to the user information corresponding with mobile IMS terminal and location information that obtain in advance
Position updating request is to home location register, so that home location register is realized and the movement according to the position updating request
The corresponding location updating of IMS terminal.
Home location register returns to joint attachment confirmation message (being also location updating confirmation message) to mobile management
Nodal function entity.
Step 205, mobile management nodes functional entity send joint attachment confirmation message to mobile IMS terminal.
Mobile management nodes functional entity sends the extremely mobile IMS terminal of joint attachment confirmation message (Attach Accept),
So far, which completes joint attachment.
Step 206, mobile IMS terminal send registration request to Serving Call Status control function entity.
Registration request includes IMS number and 4G number corresponding with IMS number.
Step 207, Serving Call Status control function entity storage IMS number and 4G number corresponding with IMS number, connect
Receive the call request corresponding with IMS number that calling session control equipment is sent.
Serving Call Status control function entity completes registered corresponding with the movement IMS terminal according to registration request
Journey.
Calling terminal is according to the IMS number call movement IMS terminal, and calling session control equipment is according to this No. IMS
Code sends call request to Serving Call Status control function entity.
Step 208, when Serving Call Status control function entity judge proxy Call State control function entity for therefore
When barrier state, Serving Call Status control function entity according to 4G number corresponding with IMS number send position enquiring request to
Home location register.
The technical solution of the present embodiment is realized based on the case where proxy Call State control function entity fault.
Subsequently, home location register returns to switching center equipment information to clothes after receiving position enquiring request
Business call state control function entity.
Step 209, Serving Call Status control function entity receive the mobile switching centre that home location register is sent
Facility information, and call request is sent to switching center equipment.
Step 210, switching center equipment send call request to mobile IMS by mobile management nodes functional entity
Terminal.
Specifically, step 210 includes: switching center equipment according to the SGs incidence relation transmission calling obtained in advance
It requests to mobile management nodes functional entity.Mobile management nodes functional entity sends call request to mobile IMS terminal.
Herein, acquired in advance SGs incidence relation can be by creating in VLR Visitor Location Register in step 203
SGs incidence relation.
Sending call answering, which is responded to mobile switching centre, after step 211, mobile IMS terminal are fallen after rise to 3G/2G network sets
It is standby.
There is mobile IMS terminal in the present embodiment CS to fall ability after rise, and mobile IMS terminal is sent out after falling after rise to 3G/2G network
Out for the corresponding call answering response of call request.
Step 212, Serving Call Status control function entity receive the call answering that switching center equipment is sent and ring
Call answering should and be sent to respond to calling session control equipment.
Step 213, Serving Call Status control function entity establish mobile IMS according to 4G number corresponding with IMS number
Call between terminal and calling terminal.
It should be noted that although describing the operation of method of disclosure in the accompanying drawings with particular order, this is not required that
Or hint must execute these operations in this particular order, or have to carry out operation shown in whole and be just able to achieve the phase
The result of prestige.Additionally or alternatively, it is convenient to omit multiple steps are merged into a step and executed by certain steps, and/or will
One step is decomposed into execution of multiple steps.
Call method for building up provided in this embodiment, mobile IMS terminal send registration request to Serving Call Status and control
Functional entity, registration request include IMS number and 4G number corresponding with IMS number, Serving Call Status control function entity
Store IMS number and 4G number corresponding with IMS number, receive that calling session control equipment sends with IMS number pair
The call request answered, when Serving Call Status control function entity judges that proxy Call State control function entity is failure shape
When state, the call between mobile IMS terminal and calling terminal is established according to 4G number corresponding with IMS number.It can acted on behalf of
When call state control function entity breaks down, the call between calling terminal and mobile IMS terminal is established.
Fig. 3 is the structural schematic diagram that system is established in a kind of call that the embodiment of the present disclosure provides, as shown in figure 3, the system
It include: mobile IMS terminal 1 and service call state control function entity 2.
Mobile IMS terminal 1 is for sending registration request to Serving Call Status control function entity 2, mobile IMS terminal 1
For 4G multimode card terminal, registration request includes IMS number and 4G number corresponding with IMS number.Serving Call Status controls function
Energy entity 2 receives what calling session control equipment was sent for storing IMS number and 4G number corresponding with IMS number
Call request corresponding with IMS number, when judge proxy Call State control function entity be malfunction when, according to
The corresponding 4G number of IMS number establishes the call between mobile IMS terminal 1 and calling terminal.
Further, further includes: mobile management nodes functional entity 3 and VLR Visitor Location Register 4.
Mobile IMS terminal 1 is also used to send joint attach request to mobile management nodes functional entity 3.Mobile management section
Point functional entity 3 is used to send position updating request according to joint attach request to VLR Visitor Location Register 4, sends joint attachment
Confirmation message is to mobile IMS terminal 1.VLR Visitor Location Register 4 is used to request transmission position updating request extremely to belong to according to update
Location register, and joint attachment confirmation message is returned to mobile management nodes functional entity 3.
Further, further includes: switching center equipment 5.Serving Call Status control function entity 2 is also used to basis
4G number corresponding with IMS number sends position enquiring and requests to home location register 4, receives home location register 4 and sends out
The switching center equipment information sent, and call request is sent to switching center equipment 5, it receives mobile switching centre and sets
The standby 5 call answering response concurrents sent send call answering to respond to calling session control equipment.Mobile switching centre sets
Standby 5 for sending call request to mobile IMS terminal 1 by mobile management nodes functional entity 3.Mobile IMS terminal 1 is also used to
Call answering is issued after falling after rise to 3G/2G network to respond to switching center equipment 5.
Further, position updating request includes at least mobile management nodes functional entity information, VLR Visitor Location Register 4
It is also used to store mobile management nodes functional entity information, and creates and mobile management nodes functional entity has under its command between user
SGs incidence relation.Switching center equipment 5 is also used to send call request to shifting according to the SGs incidence relation obtained in advance
Dynamic management node functional entity.Mobile management nodes functional entity 3 is also used to send call request to mobile IMS terminal 1.
Call provided in this embodiment establishes system and can be used for implementing call method for building up provided in this embodiment.
System is established in call provided in this embodiment, and mobile IMS terminal sends registration request to Serving Call Status and controls
Functional entity, registration request include IMS number and 4G number corresponding with IMS number, Serving Call Status control function entity
Store IMS number and 4G number corresponding with IMS number, receive that calling session control equipment sends with IMS number pair
The call request answered, when Serving Call Status control function entity judges that proxy Call State control function entity is failure shape
When state, the call between mobile IMS terminal and calling terminal is established according to 4G number corresponding with IMS number.It can acted on behalf of
When call state control function entity breaks down, the call between calling terminal and mobile IMS terminal is established.
It should be understood by those skilled in the art that, embodiment of the disclosure can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the disclosure
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the disclosure, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The disclosure is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present disclosure
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
It applies specific embodiment in the disclosure to be expounded the principle and embodiment of the disclosure, above embodiments
Explanation be merely used to help understand disclosed method and its core concept；At the same time, for those skilled in the art,
According to the thought of the disclosure, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Hold the limitation that should not be construed as to the disclosure.
Claims (10)
1. a kind of call method for building up characterized by comprising
Mobile IMS terminal sends registration request to Serving Call Status control function entity, and the mobile IMS terminal is 4G multimode
Card terminal, the registration request include IMS number and 4G number corresponding with the IMS number；
Serving Call Status control function entity stores the IMS number and 4G number corresponding with the IMS number, receives master
The call request corresponding with the IMS number for making Call-Establish-Success rate equipment send；
When Serving Call Status control function entity judges that proxy Call State control function entity is malfunction, according to
4G number corresponding with the IMS number establishes the call between the mobile IMS terminal and calling terminal.
2. call method for building up according to claim 1, which is characterized in that send registration in the mobile IMS terminal and ask
It asks to before Serving Call Status control function entity further include:
Mobile IMS terminal sends joint attach request to mobile management nodes functional entity；
Mobile management nodes functional entity sends position updating request to VLR Visitor Location Register according to the joint attach request；
VLR Visitor Location Register returns to joint according to update request transmission position updating request to home location register
Adhere to confirmation message to mobile management nodes functional entity；
Mobile management nodes functional entity sends joint attachment confirmation message to the mobile IMS terminal.
3. call method for building up according to claim 1, which is characterized in that in Serving Call Status control function entity root
Include: before the call established between the mobile IMS terminal and calling terminal according to 4G number corresponding with the IMS number
Serving Call Status control function entity sends position enquiring according to 4G number corresponding with the IMS number and requests to returning
Belong to location register；
Serving Call Status control function entity receives the switching center equipment information that home location register is sent, concurrently
Send call request to the switching center equipment；
Switching center equipment sends call request to the mobile IMS terminal by mobile management nodes functional entity；
The mobile IMS terminal issues call answering after falling after rise to 3G/2G network and responds to the switching center equipment；
The call answering response concurrent that Serving Call Status control function entity receives switching center equipment transmission send described
Call answering is responded to calling session control equipment.
4. call method for building up according to claim 2, which is characterized in that the position updating request includes at least movement
Management node functional entity information；
Position updating request is sent to vision location according to the joint attach request in the mobile management nodes functional entity
After register and the VLR Visitor Location Register is according to update request transmission position updating request to home location register
Before device further include:
VLR Visitor Location Register stores the mobile management nodes functional entity information, and creates and the mobile management nodes function
Energy entity has the SGs incidence relation between user under its command.
5. call method for building up according to claim 4, which is characterized in that the switching center equipment passes through movement
Management node functional entity sends call request to the mobile IMS terminal
The switching center equipment sends call request to the moving tube according to the SGs incidence relation obtained in advance
Manage nodal function entity；
The mobile management nodes functional entity sends call request to the mobile IMS terminal.
6. system is established in a kind of call characterized by comprising
Mobile IMS terminal, for sending registration request to Serving Call Status control function entity, the mobile IMS terminal is
4G multimode card terminal, the registration request include IMS number and 4G number corresponding with the IMS number；
Serving Call Status control function entity, for storing the IMS number and 4G number corresponding with the IMS number,
The call request corresponding with the IMS number that calling session control equipment is sent is received, when judging agent call shape
State control function entity be malfunction when, according to 4G number corresponding with the IMS number establish the mobile IMS terminal with
Call between calling terminal.
7. system is established in call according to claim 6, which is characterized in that further include mobile management nodes functional entity and
VLR Visitor Location Register；
The mobile IMS terminal is also used to send joint attach request to mobile management nodes functional entity；
The mobile management nodes functional entity, for sending position updating request to visiting position according to the joint attach request
Set register；Joint attachment confirmation message is sent to the mobile IMS terminal；
The VLR Visitor Location Register is used for according to update request transmission position updating request to home location register,
And joint attachment confirmation message is returned to mobile management nodes functional entity.
8. system is established in call according to claim 6, which is characterized in that further include switching center equipment；
The Serving Call Status control function entity is also used to send position according to 4G number corresponding with the IMS number
Inquiry request receives the switching center equipment information that home location register is sent to home location register, and sends
Call request receives the call answering response concurrent that switching center equipment is sent and send institute to the switching center equipment
Call answering is stated to respond to calling session control equipment；
The switching center equipment, for sending call request to the movement by mobile management nodes functional entity
IMS terminal；
The mobile IMS terminal issues call answering after being also used to fall after rise to 3G/2G network and responds to the mobile switching centre
Equipment.
9. system is established in call according to claim 7, which is characterized in that the position updating request includes at least movement
Management node functional entity information；
The VLR Visitor Location Register is also used to store the mobile management nodes functional entity information, and creates and the movement
Management node functional entity has the SGs incidence relation between user under its command.
10. system is established in call according to claim 9, which is characterized in that
The switching center equipment is also used to send call request in advance according to the SGs incidence relation that obtains to described
Mobile management nodes functional entity；
The mobile management nodes functional entity is also used to send call request to the mobile IMS terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449371.0A CN110121166B (en) | 2019-05-28 | 2019-05-28 | Call establishment method and system |
Applications Claiming Priority (1)
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