CN106982422A - The method and device of 2G/3G location area informations is obtained under circuit domain dropping - Google Patents
The method and device of 2G/3G location area informations is obtained under circuit domain dropping Download PDFInfo
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- CN106982422A CN106982422A CN201610034319.5A CN201610034319A CN106982422A CN 106982422 A CN106982422 A CN 106982422A CN 201610034319 A CN201610034319 A CN 201610034319A CN 106982422 A CN106982422 A CN 106982422A
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- positional information
- hlr
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/24—Accounting or billing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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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
- H04W8/08—Mobility data transfer
- H04W8/12—Mobility data transfer between location registers or mobility servers
Abstract
The invention discloses a kind of method and device that 2G/3G location area informations are obtained under CSFB, including：When SCP asks the positional information of called UE to called MS C, called MS C sends paging request to MME；MME indicates that called UE is fallen after rise to 2G/3G networks, and positional information is sent to called MS C by called UE；The positional information of called UE is passed through SCP by called MS C, and SCP preserves the positional information of the called UE and indicates that caller MSC continues to call；Caller MSC continues to call, and obtains the routing iinformation and roaming number of called UE；Called MS C is received after caller MSC incoming call request, indicates that called UE is fallen after rise to 2G/3G networks, and sends paging request to MME, with call establishment.
Description
Technical field
The present invention relates to (CSFB, the Circuit Switched of the circuit domain dropping in mobile data field
Fallback) technology, more particularly to a kind of method and dress that 2G/3G location area informations are obtained under CSFB
Put.
Background technology
CSFB speech businesses, are a kind of circuit domain dropping voice solutions.User's registration the 4th generation (4G,
4Generation) mobile network-evolved packet system (EPS, Evolved Packet System) network is sent out
When rising or receiving speech business, after EPS network instruction users fall back to objective circuit domain network, then send out
Rise or receive speech business.The voice solution is referred to as the circuit domain dropping (CSFB in evolved packet system
In EPS) scheme.
In 2G/3G mobile networks, when user's signing intelligent network business, such as Mobile Virtual Private Network Service
Service control in (VPMN, Virtual Private Mobile Network)-abbreviation V nets, intelligent network
Point (SCP, Service Control Point) needs to carry out differentiated charging according to the positional information of user：Ginseng
According to Fig. 1, after user triggers intelligence, attaching position register (HLR, Home that SCP can be into core net
Location Register) network element ask user positional information, HLR receive request rear line registration end
Office-mobile switching centre (MSC, Mobile Switching Center) initiates request, and MSC works as user
Front position information (such as position area (LAI, Location Area Identification), global cell (GCI,
Cell Global Identifier)) HLR is returned to, and then SCP is returned to, complete differentiated charging.
Existing scheme at least has the following disadvantages：
1st, intelligent quilt can not be by 4G Network Captures 2G/3G positional information (CSFB user).
2nd, the SCP in intelligent network can not get the positional information of user, can not just realize based on position letter
The business of breath, such as preferential region charging, special area call blocking, the system of the interior marketing set meal of strategic scope
It is fixed etc..
3rd, after 2G/3G user changes 4G cards, original preferential business can not cash, and cause a large amount of complaints.
4th, the missing of customer position information, causes position location functionality not realize, so that traffic affecting is accurate
Really push, the market expansion is restricted.
The content of the invention
In order to solve the above technical problems, the embodiments of the invention provide 2G/3G positions are obtained under a kind of CSFB
The method and device of area's information.
The method that 2G/3G location area informations are obtained under CSFB provided in an embodiment of the present invention, including：
When SCP asks the positional information of called UE to called MS C, called MS C is to mobile management nodes
(MME, Mobility Management Entity) sends paging request；
MME indicates that called UE is fallen after rise to 2G/3G networks, and positional information is sent to called by called UE
MSC；
The positional information of called UE is passed through SCP by called MS C, and SCP preserves the position of the called UE
Confidence ceases and indicates that caller MSC continues to call；
Caller MSC continues to call, and obtains the routing iinformation and roaming number of called UE；
Called MS C is received after caller MSC incoming call request, indicates that called UE is fallen after rise to 2G/3G
Network, and paging request is sent to MME, with call establishment.
In the embodiment of the present invention, when the SCP asks the positional information of called UE to called MS C, quilt
MSC is made to send paging request to MME, including：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；
Called HLR sends the second request instruction to called MS C, to ask the positional information of called UE；
When called MS C determines that called UE is supported CSFB and is located under 4G networks, sent to MME
Paging request.
In the embodiment of the present invention, the positional information of called UE is passed through SCP by the called MS C, including：
The positional information of called UE is sent to SCP by called MS C by called HLR.
In the embodiment of the present invention, SCP sends the first request instruction to called HLR, to ask called UE
Before positional information, methods described also includes：
Caller MSC is received after the call request of calling UE transmission, and called UE is asked to called HLR
Routing iinformation；
The signing information of called UE is sent to caller MSC by called HLR；
Caller MSC triggers the IN service of called UE according to the signing information of called UE.
The method that 2G/3G location area informations are obtained under CSFB that another embodiment of the present invention is provided, including：
When SCP asks the positional information of called UE to called MS C, called MS C is sent to called HLR
Pseudo- called UE information, the pseudo- called UE information carries current address and obtains field；Called HLR is by puppet
Called UE information passes through SCP；
Before SCP is identified from pseudo- called UE information after address acquisition field, following mark is set：Work as master
MSC is made to report the positional information for obtaining called UE during charging message again；Also, indicate caller MSC
Continue to call；
When caller MSC reports charging message to SCP, SCP is according to the mark of setting again to called MS C
The positional information of called UE is asked and obtained, charging is carried out according to the positional information of the called UE.
In the embodiment of the present invention, when the SCP asks the positional information of called UE to called MS C, quilt
MSC is made to send pseudo- called UE information to called HLR, including：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；
Called HLR sends the second request instruction to called MS C, to ask the positional information of called UE；
Called MS C determines that called UE is when supporting CSFB and being located under 4G networks, to called HLR
Send pseudo- called UE information.
In the embodiment of the present invention, indicate that caller MSC continues after calling, methods described also includes：
Caller MSC continues to call, and obtains the routing iinformation and roaming number of called UE；
Called MS C is received after caller MSC incoming call request, indicates that called UE is fallen after rise to 2G/3G
Positional information is sent to called MS C by network, called UE；And paging request is sent to MME, to connect
Logical calling.
The device provided in an embodiment of the present invention that 2G/3G location area informations are obtained under CSFB, including：
First control unit, for controlling SCP, called MS C and MME to perform following operation：SCP
When asking the positional information of called UE to called MS C, called MS C sends paging request to MME；
Second control unit, for controlling MME and UE to perform following operation：MME indicates called
UE is fallen after rise to 2G/3G networks, and positional information is sent to called MS C by called UE；
3rd control unit, for controlling called MS C, SCP and caller MSC to perform following operation：
The positional information of called UE is passed through SCP by called MS C, and SCP preserves the position letter of the called UE
Cease and indicate that caller MSC continues to call；Caller MSC continues to call, and obtains the routing iinformation of called UE
And roaming number；
4th control unit, for controlling called MS C and UE to perform following operation：Called MS C connects
After the incoming call request for receiving caller MSC, indicate that called UE is fallen after rise to 2G/3G networks, and to MME
Paging request is sent, with call establishment.
In the embodiment of the present invention, first control unit is further used for control：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；It is called
HLR sends the second request instruction to called MS C, to ask the positional information of called UE；Called MS C
When determining that called UE is supported CSFB and is located under 4G networks, paging request is sent to MME.
In the embodiment of the present invention, the 3rd control unit is further used for control：
The positional information of called UE is sent to SCP by called MS C by called HLR.
In the embodiment of the present invention, described device also includes：5th control unit, for controlling caller MSC
And called HLR performs following operation：Caller MSC is received after the call request of calling UE transmission,
The routing iinformation of called UE is asked to called HLR；Called HLR sends the signing information of called UE
Give caller MSC；Caller MSC triggers the IN service of called UE according to the signing information of called UE.
The device that 2G/3G location area informations are obtained under CSFB that another embodiment of the present invention is provided, including：
First control unit, for controlling SCP, called MS C and called HLR to perform following operation：
When SCP asks the positional information of called UE to called MS C, called MS C sends pseudo- quilt to called HLR
UE information is, the pseudo- called UE information carries current address and obtains field；Called HLR is called by puppet
UE information passes through SCP；
Second control unit, for controlling SCP to perform following operation：SCP knows from pseudo- called UE information
Before not going out after address acquisition field, following mark is set：Obtained again when caller MSC reports charging message
Take the positional information of called UE；Also, indicate that caller MSC continues to call；
3rd control unit, for controlling caller MSC and SCP to perform following operation：As caller MSC
When reporting charging message to SCP, SCP is asked to called MS C and is obtained quilt again according to the mark of setting
UE positional information is, charging is carried out according to the positional information of the called UE.
In the embodiment of the present invention, first control unit is further used for control：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；It is called
HLR sends the second request instruction to called MS C, to ask the positional information of called UE；Called MS C
It is that when supporting CSFB and being located under 4G networks, pseudo- called UE is sent to called HLR to determine called UE
Information.
In the embodiment of the present invention, described device also includes：4th control unit, for control caller MSC,
Called MS C and UE perform following operation：Caller MSC continues to call, and obtains the route of called UE
Information and roaming number；Called MS C is received after caller MSC incoming call request, is indicated called
UE is fallen after rise to 2G/3G networks, and positional information is sent to called MS C by called UE；And sent out to MME
Paging request is sent, with call establishment.
In the technical scheme of the embodiment of the present invention, when SCP asks the positional information of called UE to called MS C,
Called MS C sends paging request to MME；MME indicates that called UE is fallen after rise to 2G/3G networks, quilt
Make UE that positional information is sent into called MS C；Called MS C passes through the positional information of called UE
SCP, SCP preserve the positional information of the called UE and indicate that caller MSC continues to call；Caller MSC
Continue to call, obtain the routing iinformation and roaming number of called UE；Called MS C receives caller MSC
Incoming call request after, indicate called UE fall after rise to 2G/3G networks, and to MME send paging please
Ask, with call establishment.It can be seen that, fall the location area information for obtaining called UE after rise by first time CSFB,
Fallen after rise again by second of CSFB and carry out normal voice call, realized and obtain called under CSFB technologies
UE real 2G/3G positional informations, so that original differentiated charging service is maintained, do not influence
2G/3G customer upgrades are the usage experience after 4G user.
In the technical scheme of the embodiment of the present invention, when SCP asks the positional information of called UE to called MS C,
Called MS C sends pseudo- called UE information to called HLR, and the pseudo- called UE information carries current position
Location obtains field；Pseudo- called UE information is passed through SCP by called HLR；SCP is from pseudo- called UE information
In identify before after address acquisition field, following mark is set：When caller MSC reports charging message again
The secondary positional information for obtaining called UE；Also, indicate that caller MSC continues to call；When caller MSC to
When SCP reports charging message, SCP is asked to called MS C and is obtained called again according to the mark of setting
UE positional information, charging is carried out according to the positional information of the called UE.It can be seen that, wait called UE
The feedback of 2G/3G positional informations is carried out after final falling again, the industry such as differentiated charging can be accurately and efficiently reached
Business purpose, substantially reduces call delay.
Brief description of the drawings
Fig. 1 is located under 2G/3G networks for UE provides positional information flow chart to intelligent network；
The flow of methods of the Fig. 2 to obtain 2G/3G location area informations under the CSFB of the embodiment of the present invention one is shown
It is intended to；
The flow of methods of the Fig. 3 to obtain 2G/3G location area informations under the CSFB of the embodiment of the present invention two is shown
It is intended to；
The flow of methods of the Fig. 4 to obtain 2G/3G location area informations under the CSFB of the embodiment of the present invention three is shown
It is intended to；
The flow of methods of the Fig. 5 to obtain 2G/3G location area informations under the CSFB of the embodiment of the present invention four is shown
It is intended to；
Fig. 6 for the embodiment of the present invention five CSFB under obtain 2G/3G location area informations device structure group
Into schematic diagram；
Fig. 7 for the embodiment of the present invention six CSFB under obtain 2G/3G location area informations device structure group
Into schematic diagram.
Embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings
Realization to the embodiment of the present invention is described in detail, appended accompanying drawing purposes of discussion only for reference, is not used for
Limit the embodiment of the present invention.
There is following defect in the mechanism that customer position information is obtained under existing 2G/3G/4G networks：Due to 4G
Network by data service independently of speech business outside, therefore when user be in 4G networks under initiate or receive
During audio call, CSFB technologies will migrate back user on 2G/3G networks and be continued, and whole process needs
Time-triggered protocol, and called subscriber can not also provide 2G/3G positional information under 4G networks, so leading
Cause SCP can not get the 2G/3G positional informations of user in time, also can not just realize for positional information
Differentiated charging.Former 2G/3G customer upgrades are even resulted in for after 4G user, the preferential charge enjoyed can not
Cash.
The embodiment of the present invention seeks to realize obtains real 2G/3G positional informations under CSFB technologies, from
And original differentiated charging service is maintained, it is making after 4G user that 2G/3G customer upgrades are not influenceed
With experience.
The flow of methods of the Fig. 2 to obtain 2G/3G location area informations under the CSFB of the embodiment of the present invention one is shown
It is intended to, as shown in Fig. 2 the method that 2G/3G location area informations are obtained under the CSFB comprises the following steps：
Step 201：When SCP asks the positional information of called UE to called MS C, called MS C is to MME
Send paging request.
In the embodiment of the present invention, when the SCP asks the positional information of called UE to called MS C, quilt
MSC is made to send paging request to MME, including：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；
Called HLR sends the second request instruction to called MS C, to ask the positional information of called UE；
When called MS C determines that called UE is supported CSFB and is located under 4G networks, sent to MME
Paging request.
Here, when called MS C determines that called UE is not supported CSFB or is not located under 4G networks,
Called UE directly obtains VLR Visitor Location Register (VLR, Visitor Location under 2G/3G networks
Register positional information in) is simultaneously fed back.
In the embodiment of the present invention, SCP sends the first request instruction to called HLR, to ask called UE
Before positional information, methods described also includes：
Caller MSC is received after the call request of calling UE transmission, and called UE is asked to called HLR
Routing iinformation；
The signing information of called UE is sent to caller MSC by called HLR；
Caller MSC triggers the IN service of called UE according to the signing information of called UE.
Step 202：MME indicates that called UE is fallen after rise to 2G/3G networks, and called UE sends out positional information
Give called MS C.
Step 203：The positional information of called UE is passed through SCP by called MS C, and SCP preserves the quilt
It is UE positional information and indicates that caller MSC continues to call.
In the embodiment of the present invention, the positional information of called UE is passed through SCP by the called MS C, including：
The positional information of called UE is sent to SCP by called MS C by called HLR.
Step 204：Caller MSC continues to call, and obtains the routing iinformation and roaming number of called UE.
Step 205：Called MS C is received after caller MSC incoming call request, indicates called UE
Fall after rise to 2G/3G networks, and paging request is sent to MME, with call establishment.
The flow of methods of the Fig. 3 to obtain 2G/3G location area informations under the CSFB of the embodiment of the present invention two is shown
It is intended to, as shown in figure 3, footmark a represents calling party, footmark b is represented to be obtained under callee, the CSFB
The method of 2G/3G location area informations is taken to comprise the following steps：
Step 301：MSCa receives the call request signaling CM_Service_REQ of calling subscribe's initiation；
Step 302：MSCa sends routing iinformation (SRI, Send after the old process such as authentication ciphering
Routine Info) HLRb is arrived, the routing iinformation of called number is asked to HLRb；
Step 303：UE signing information (T_CSI) is returned to MSCa by HLRb by SRI_ACK；
Step 304：MSCa sends IDP to SCPb according to T_CSI, triggers called intelligent service；
Step 305：SCPb sends ATI (carrying Current location fields) and arrives HLRb, to HLRb
Ask the positional information of user；
Step 306：HLRb sends PSI (carrying Current location fields) and arrives MSCb, to MSCb
Ask the positional information of user；
Step 307：MSCb identification UE is CSFB users and are located under 4G networks, i.e. SGs interfaces shape
State is Associated, sends paging request to MME immediately；
Step 308：MME instruction users fall back to 2G/3G, UE by Paging Response or
Positional information (GCI) is fed back to MSCb by Location Update signalings；
Step 309：User is fallen back to the actual position information GCI after 2G/3G networks and passed through by MSCb
PSI_ACK is back to HLRb；
Step 310：HLRb is by ATI_ACK transparent transmission GCI parameters to SCPb；
Step 311：SCPb is received and preserved after customer position information, so as to subsequent charging, while to
MSCa issues the order such as RRBE, AC, FCI, Continue or Connect, continues call business；
Step 312：MSCa carries out the normal flow for taking called route, and MSCb is by HLRb to MSCa
Provide Roaming Number and supply replay call；
Step 313：MSCa initiates incoming call request IAM to MSCb；
Step 314：Carry out called subscriber normal CSFB callings and fall flow after rise, final UE again this fall back to
In 2G/3G networks；
Step 315：MSCb returns ACM, ANM to MSCa, represents user's call establishment；
Step 316：MSCa is received after answer message to SCPb transmission charging reports (ACR)；
Step 317：SCPb is received after ACR, and charging is carried out according to the customer position information preserved just now.
So far, SCPb can carry out differentiated charging by positional information.
In the technical scheme of the embodiment of the present invention, when UE is intelligent subscriber, by for the first time when continuing
CSFB falls after rise, obtains 2G/3G location area information, then fall the normal language of progress after rise by second of CSFB
Sound is conversed.HLR is arrived when SCP sends AT (carrying Current location fields), HLR sends PSI
(carrying Current location fields) arrives MSC, and MSC identifications UE is CSFB user and is located at 4G
Under network, i.e., SGs Interface status is Associated, sends paging request to MME immediately.MME refers to
Show that UE falls back to 2G/3G, UE is by Paging Response or Location Update signalings by position
Information (GCI) feeds back to MSC, and MSC feeds back to SCP through HLR again, and SCP is according to positional information
Carry out the business such as charging.
By the implementation to the embodiment of the present invention, when UE is intelligent subscriber, by arriving 2G/3G after falling
The method of network, can effectively obtain the positional information of user.SCP in intelligent network gets UE position
After information, the business based on positional information is can be achieved with, such as preferential region charging, special area calling limit
Formulation of marketing set meal etc. in system, strategic scope.After 2G/3G user changes 4G machine cards, original
Preferential business can continue to keep, and user is perceived using without exception.Believed by the position for falling the UE got after rise
Breath, can be further used for the functions such as position positioning, so as to improve the accuracy of service propelling, facilitate market to open up
Exhibition.In a word, it compensate under the 4G network architectures, existing CSFB voice fallbacks mechanism can not obtain user
The deficiency of actual position information, can carry out the business such as differentiated charging for the true region of user；Simultaneously
Can avoid 2G/3G customer upgrades be 4G user after, the drawbacks of losing the business such as region charging privileges.
Because CSFB calling UEs have been fallen back to initiates intelligent network SCP request position again after 2G/3G networks
The flow of information, so being as good as with normal 2G/3G user, without being changed.The embodiment of the present invention is main
It is in for called UE in 4G networks, and is intelligent subscriber, CSFB occurs when receiving speech business and returns
Fall, 2G/3G positional informations how are obtained under this scene.
The flow of methods of the Fig. 4 to obtain 2G/3G location area informations under the CSFB of the embodiment of the present invention three is shown
It is intended to, as shown in figure 4, the method that 2G/3G location area informations are obtained under the CSFB comprises the following steps：
Step 401：When SCP asks the positional information of called UE to called MS C, called MS C is to quilt
HLR is made to send pseudo- called UE information, the pseudo- called UE information carries current address and obtains field；Quilt
Make HLR that pseudo- called UE information is passed through into SCP.
In the embodiment of the present invention, when the SCP asks the positional information of called UE to called MS C, quilt
MSC is made to send pseudo- called UE information to called HLR, including：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；It is called
HLR sends the second request instruction to called MS C, to ask the positional information of called UE；Called MS C
It is that when supporting CSFB and being located under 4G networks, pseudo- called UE is sent to called HLR to determine called UE
Information.
Here, when called MS C determines that called UE is not supported CSFB or is not located under 4G networks, quilt
UE is under G/3G networks, the positional information in VLR is directly obtained and is fed back.
Step 402：Before SCP is identified from pseudo- called UE information after address acquisition field, set as follows
Mark：Obtain the positional information of called UE again when caller MSC reports charging message；Also, indicate
Caller MSC continues to call.
In the embodiment of the present invention, indicate that caller MSC continues after calling, methods described also includes：
Caller MSC continues to call, and obtains the routing iinformation and roaming number of called UE；
Called MS C is received after caller MSC incoming call request, indicates that called UE is fallen after rise to 2G/3G
Positional information is sent to called MS C by network, called UE；And paging request is sent to MME, to connect
Logical calling.
Step 403：When caller MSC reports charging message to SCP, SCP according to the mark of setting again
The secondary positional information asked to called MS C and obtain called UE, according to the positional information of the called UE
Carry out charging.
The flow of methods of the Fig. 5 to obtain 2G/3G location area informations under the CSFB of the embodiment of the present invention four is shown
It is intended to, as shown in figure 5, footmark a represents calling party, footmark b is represented to be obtained under callee, the CSFB
The method of 2G/3G location area informations is taken to comprise the following steps：
Step 501：MSCa receives the call request signaling CM_Service_REQ of UE initiations；
Step 502：MSCa sends SRI to HLRb after the old process such as authentication ciphering, to HLR
Ask the routing iinformation of called number；
Step 503：UE T_CSI is returned to MSCa by HLRb by SRI_ACK；
Step 504：MSCa sends IDP to SCPb according to T_CSI, triggers called intelligent service；
Step 505：SCPb sends ATI (carrying Current location fields) and arrives HLRb, to HLRb
Ask the positional information of user；
Step 506：HLRb sends PSI (carrying Current location fields) and arrives MSCb, to MSCb
Ask the positional information of user；
Step 507：MSCb recognizes UE for voice terminating call (CSMT), and SGs Interface status is
Associated (i.e. UE is located under 4G networks), returns to puppet PSI_ACK immediately, wherein, pseudo- PSI_ACK
Current Location Retrieved are carried, SGs mouthfuls of pagings are not done；
Step 508：HLRb is given by ATI_ACK transparent transmission Current Location Retrieved parameters
SCPb；
Step 509：SCPb is recognized after Current Location Retrieved fields, and marking the flow needs
Want MSCa to report and go the true 2G/3G positional informations for taking UE during ACR message again, SCPb simultaneously to
MSCa issues the order such as RRBE, AC, FCI, Continue or Connect, continues call business；
Step 510：MSCa carries out the normal flow for taking called route, and MSCb is by HLRb to MSCa
Provide Roaming Number and supply replay call；
Step 511：MSCa initiates incoming call request IAM to MSCb；
Step 512：Carry out the normal CSFB callings of called subscriber and fall flow after rise, final UE passes through Paging
Positional information (GCI) is fed back to MSCb by Response or Location Update signalings；
Step 513：MSCb returns ACM, ANM to MSCa, represents user's call establishment；
Step 514：MSCa is received after answer message to SCPb transmission charging reports ACR；
Step 515：SCPb is received after ACR, buffered message, according to mark just now, resends ATI
(carrying current location fields) arrives HLRb, and the positional information of user is asked to HLRb；
Step 516：HLRb sends PSI (carrying Current location fields) and arrives MSCb, to MSCb
Ask the positional information of user；
Step 517：MSCb UE is fallen back to actual position information GCI after 2G/3G networks etc. back to
HLRb；
Step 518：UE current location informations (CGI) are returned to SCPb by HLRb by ATI_ACK,
SCPb starts charging.
So far, SCP can carry out differentiated charging by positional information.
In the technical scheme of the embodiment of the present invention, only fallen after rise when continuing by a CSFB, obtain 2G/3G
Location area information.HLR, HLR are arrived when SCP sends ATI (carrying Current location fields)
Send PSI (carrying Current location fields) and arrive MSC, MSC identifications UE is CSMT, and
SGs Interface status is Associated (i.e. user is located under 4G networks), and puppet PSI_ACK is returned immediately,
Current Location Retrieved are carried, SGs mouthfuls of pagings are not done.The newly-increased identification Current Location of SCP
Retrieved fields, and mark requirements of process MSC and report and go to take the true of family again during ACR message
2G/3G positional informations.Called subscriber carries out normal CSFB callings and falls flow after rise, and final UE passes through Paging
Current 2G/3G positional informations (GCI) are fed back to MSC by Response or Location Update signalings,
And call establishment.SCP is received after ACR, buffered message, according to mark just now, resends ATI
(carrying current location fields) arrives HLR, and HLR sends PSI requests and arrives MSC, now MSC
Real customer position information is fed back into SCP by HLR, then starts charging.
By the implementation to the embodiment of the present invention, user is waited to feed back 2G/3G positional informations again after finally falling after rise,
The business purposes such as differentiated charging can accurately and efficiently be reached.When SCP is to called MS C acquisition request users
During 2G/3G positional informations under 4G networks, MSC feedback puppet PSI_ACK, and carry relevant field,
Waiting SCP to receive after ACR, triggering takes the flow of positional information again, saves and once falls flow after rise, significantly
Shorten call delay.When taking UE positional informations, user is only fallen after rise once, simplifies flow, is evaded
Fall the problem of may increasing call failure probability after rise twice, 2G/3G positional informations can be accurately obtained.Due to
The 2G/3G positional informations of user are taken from the page-response message of final voice call, so the degree of accuracy is very high,
The problem of in the absence of the information got and inconsistent true talking position area is fallen after rise for the first time, so that the standard of charging
True property is guaranteed.In a word, it compensate under the 4G network architectures, existing CSFB voice fallbacks mechanism is not
The deficiency of user's actual position information can be obtained, differentiated charging can be carried out for the true regions of UE；
Simultaneously can avoid 2G/3G customer upgrades be 4G user after, the drawbacks of losing region charging privileges business.
The Key Term occurred in the embodiment of the present invention is explained below：
ATI：Any Time Interrogation, are interrogated at any time
PSI：There is provided user profile by Provide Subscriber Information
RRBE：Request Report BCSM Event, request report BCSM events
BCSM：Basic Call State Model, Basic Call State Model BCSM
AC：Apply Charging, application charge
ACR：Apply Charging Report, application charge report
FCI：There is provided pay imformation by Furnish Charging Information
SRI：Send Routing Information, send routing iinformation
PRN：There is provided roaming number by Provider Roaming Number
Fig. 6 for the embodiment of the present invention five CSFB under obtain 2G/3G location area informations device structure group
Into schematic diagram, as shown in fig. 6, the device of 2G/3G location area informations is obtained under the CSFB to be included：
First control unit 61, for controlling SCP, called MS C and MME to perform following operation：
When SCP asks the positional information of called UE to called MS C, called MS C sends paging to MME please
Ask；
Second control unit 62, for controlling MME and UE to perform following operation：MME indicates quilt
UE is made to fall after rise to 2G/3G networks, positional information is sent to called MS C by called UE；
3rd control unit 63, for controlling called MS C, SCP and caller MSC to perform following operation：
The positional information of called UE is passed through SCP by called MS C, and SCP preserves the position letter of the called UE
Cease and indicate that caller MSC continues to call；Caller MSC continues to call, and obtains the routing iinformation of called UE
And roaming number；
4th control unit 64, for controlling called MS C and UE to perform following operation：Called MS C
After the incoming call request for receiving caller MSC, indicate that called UE is fallen after rise to 2G/3G networks, and to
MME sends paging request, with call establishment.
First control unit 61, is further used for control：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；It is called
HLR sends the second request instruction to called MS C, to ask the positional information of called UE；Called MS C
When determining that called UE is supported CSFB and is located under 4G networks, paging request is sent to MME.
3rd control unit 63, is further used for control：
The positional information of called UE is sent to SCP by called MS C by called HLR.
Described device also includes：5th control unit 65, for controlling caller MSC and called HLR to hold
The following operation of row：Caller MSC is received after the call request of calling UE transmission, is asked to called HLR
The routing iinformation of called UE；The signing information of called UE is sent to caller MSC by called HLR；Caller
MSC triggers the IN service of called UE according to the signing information of called UE.
It will be appreciated by those skilled in the art that obtaining 2G/3G location area informations under CSFB shown in Fig. 6
Each unit in device realizes that function can refer to the method that 2G/3G location area informations are obtained under foregoing CSFB
Associated description and understand.
Fig. 7 for the embodiment of the present invention six CSFB under obtain 2G/3G location area informations device structure group
Into schematic diagram, as shown in fig. 7, the device of 2G/3G location area informations is obtained under the CSFB to be included：
First control unit 71, for controlling SCP, called MS C and called HLR to perform following operation：
When SCP asks the positional information of called UE to called MS C, called MS C sends pseudo- quilt to called HLR
UE information is, the pseudo- called UE information carries current address and obtains field；Called HLR is called by puppet
UE information passes through SCP；
Second control unit 72, for controlling SCP to perform following operation：SCP is from pseudo- called UE information
Before identifying after address acquisition field, following mark is set：When caller MSC reports charging message again
Obtain the positional information of called UE；Also, indicate that caller MSC continues to call；
3rd control unit 73, for controlling caller MSC and SCP to perform following operation：Work as caller
MSC to SCP report charging message when, SCP is asked and obtained to called MS C again according to the mark of setting
The positional information of called UE is taken, charging is carried out according to the positional information of the called UE.
First control unit 71, is further used for control：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；It is called
HLR sends the second request instruction to called MS C, to ask the positional information of called UE；Called MS C
It is that when supporting CSFB and being located under 4G networks, pseudo- called UE is sent to called HLR to determine called UE
Information.
Described device also includes：4th control unit 74, for control caller MSC, called MS C and
UE performs following operation：Caller MSC continues to call, and obtains the routing iinformation and roaming number of called UE；
Called MS C is received after caller MSC incoming call request, indicates that called UE is fallen after rise to 2G/3G nets
Positional information is sent to called MS C by network, called UE；And paging request is sent to MME, to connect
Calling.
It will be appreciated by those skilled in the art that obtaining 2G/3G location area informations under CSFB shown in Fig. 7
Each unit in device realizes that function can refer to the method that 2G/3G location area informations are obtained under foregoing CSFB
Associated description and understand.
, can be in any combination in the case where not conflicting between technical scheme described in the embodiment of the present invention.
In several embodiments provided by the present invention, it should be understood that disclosed method and smart machine,
It can realize by another way.Apparatus embodiments described above are only schematical, for example,
The division of the unit, only a kind of division of logic function, can there is other division side when actually realizing
Formula, such as：Multiple units or component can be combined, or be desirably integrated into another system, or some features can
To ignore, or do not perform.In addition, the coupling or straight of shown or discussed each part each other
Connect coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of equipment or unit,
Can be electrical, machinery or other forms.
The above-mentioned unit illustrated as separating component can be or may not be it is physically separate, as
The part that unit is shown can be or may not be physical location, you can positioned at a place, also may be used
To be distributed on multiple NEs；Part or all of unit therein can be selected according to the actual needs
Realize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a second processing list
, can also two or more unit collection in member or each unit is individually as a unit
Into in a unit；Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hard
Part adds the form of SFU software functional unit to realize.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, can readily occur in
Change or replacement, should all be included within the scope of the present invention.
Claims (14)
1. a kind of method that 2G/3G location area informations are obtained under circuit domain dropping CSFB, its feature exists
In methods described includes：
Terminal called UE positional information is asked to called moving exchanging center MSC in service control point (SCP)
When, called MS C sends paging request to mobile management nodes MME；
MME indicates that called UE is fallen after rise to 2G/3G networks, and positional information is sent to called by called UE
MSC；
The positional information of called UE is passed through SCP by called MS C, and SCP preserves the position of the called UE
Confidence ceases and indicates that caller MSC continues to call；
Caller MSC continues to call, and obtains the routing iinformation and roaming number of called UE；
Called MS C is received after caller MSC incoming call request, indicates that called UE is fallen after rise to 2G/3G
Network, and paging request is sent to MME, with call establishment.
2. according to claim 1 obtain 2G/3G location area informations under circuit domain dropping CSFB
Method, it is characterised in that the SCP to called MS C ask called UE positional information when, quilt
MSC is made to send paging request to MME, including：
SCP sends the first request instruction to called attaching position register HLR, to ask the position of called UE
Confidence ceases；
Called HLR sends the second request instruction to called MS C, to ask the positional information of called UE；
When called MS C determines that called UE is supported CSFB and is located under 4G networks, sent to MME
Paging request.
3. according to claim 2 obtain 2G/3G location area informations under circuit domain dropping CSFB
Method, it is characterised in that the positional information of called UE is passed through SCP by the called MS C, including：
The positional information of called UE is sent to SCP by called MS C by called HLR.
4. according to claim 2 obtain 2G/3G location area informations under circuit domain dropping CSFB
Method, it is characterised in that SCP to called HLR send the first request instruction, to ask called UE
Before positional information, methods described also includes：
Caller MSC is received after the call request of calling UE transmission, and called UE is asked to called HLR
Routing iinformation；
The signing information of called UE is sent to caller MSC by called HLR；
Caller MSC triggers the IN service of called UE according to the signing information of called UE.
5. a kind of method that 2G/3G location area informations are obtained under circuit domain dropping CSFB, its feature exists
In methods described includes：
When SCP asks the positional information of called UE to called MS C, called MS C is sent to called HLR
Pseudo- called UE information, the pseudo- called UE information carries current address and obtains field；Called HLR is by puppet
Called UE information passes through SCP；
Before SCP is identified from pseudo- called UE information after address acquisition field, following mark is set：Work as master
MSC is made to report the positional information for obtaining called UE during charging message again；Also, indicate caller MSC
Continue to call；
When caller MSC reports charging message to SCP, SCP is according to the mark of setting again to called MS C
The positional information of called UE is asked and obtained, charging is carried out according to the positional information of the called UE.
6. 2G/3G location area informations are obtained under circuit domain dropping CSFB according to claim 5
Method, it is characterised in that the SCP to called MS C ask called UE positional information when, quilt
MSC is made to send pseudo- called UE information to called HLR, including：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；
Called HLR sends the second request instruction to called MS C, to ask the positional information of called UE；
Called MS C determines that called UE is when supporting CSFB and being located under 4G networks, to called HLR
Send pseudo- called UE information.
7. 2G/3G location area informations are obtained under circuit domain dropping CSFB according to claim 5
Method, it is characterised in that indicate that caller MSC continues after calling, methods described also includes：
Caller MSC continues to call, and obtains the routing iinformation and roaming number of called UE；
Called MS C is received after caller MSC incoming call request, indicates that called UE is fallen after rise to 2G/3G
Positional information is sent to called MS C by network, called UE；And paging request is sent to MME, to connect
Logical calling.
8. a kind of device that 2G/3G location area informations are obtained under circuit domain dropping CSFB, its feature exists
In described device includes：
First control unit, for controlling SCP, called MS C and MME to perform following operation：SCP
When asking the positional information of called UE to called MS C, called MS C sends paging request to MME；
Second control unit, for controlling MME and UE to perform following operation：MME indicates called
UE is fallen after rise to 2G/3G networks, and positional information is sent to called MS C by called UE；
3rd control unit, for controlling called MS C, SCP and caller MSC to perform following operation：
The positional information of called UE is passed through SCP by called MS C, and SCP preserves the position letter of the called UE
Cease and indicate that caller MSC continues to call；Caller MSC continues to call, and obtains the routing iinformation of called UE
And roaming number；
4th control unit, for controlling called MS C and UE to perform following operation：Called MS C connects
After the incoming call request for receiving caller MSC, indicate that called UE is fallen after rise to 2G/3G networks, and to MME
Paging request is sent, with call establishment.
9. according to claim 8 obtain 2G/3G location area informations under circuit domain dropping CSFB
Device, it is characterised in that first control unit, be further used for control：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；It is called
HLR sends the second request instruction to called MS C, to ask the positional information of called UE；Called MS C
When determining that called UE is supported CSFB and is located under 4G networks, paging request is sent to MME.
10. according to claim 9 obtain 2G/3G location area informations under circuit domain dropping CSFB
Device, it is characterised in that the 3rd control unit, be further used for control：
The positional information of called UE is sent to SCP by called MS C by called HLR.
11. according to claim 9 obtain 2G/3G location area informations under circuit domain dropping CSFB
Device, it is characterised in that described device also includes：5th control unit, for controlling caller MSC
And called HLR performs following operation：Caller MSC is received after the call request of calling UE transmission,
The routing iinformation of called UE is asked to called HLR；Called HLR sends the signing information of called UE
Give caller MSC；Caller MSC triggers the IN service of called UE according to the signing information of called UE.
12. a kind of device that 2G/3G location area informations are obtained under circuit domain dropping CSFB, its feature exists
In described device includes：
First control unit, for controlling SCP, called MS C and called HLR to perform following operation：
When SCP asks the positional information of called UE to called MS C, called MS C sends pseudo- quilt to called HLR
UE information is, the pseudo- called UE information carries current address and obtains field；Called HLR is called by puppet
UE information passes through SCP；
Second control unit, for controlling SCP to perform following operation：SCP knows from pseudo- called UE information
Before not going out after address acquisition field, following mark is set：Obtained again when caller MSC reports charging message
Take the positional information of called UE；Also, indicate that caller MSC continues to call；
3rd control unit, for controlling caller MSC and SCP to perform following operation：As caller MSC
When reporting charging message to SCP, SCP is asked to called MS C and is obtained quilt again according to the mark of setting
UE positional information is, charging is carried out according to the positional information of the called UE.
13. according to claim 12 obtain 2G/3G positions area letter under circuit domain dropping CSFB
The device of breath, it is characterised in that first control unit, is further used for control：
SCP sends the first request instruction to called HLR, to ask the positional information of called UE；It is called
HLR sends the second request instruction to called MS C, to ask the positional information of called UE；Called MS C
It is that when supporting CSFB and being located under 4G networks, pseudo- called UE is sent to called HLR to determine called UE
Information.
14. according to claim 12 obtain 2G/3G positions area letter under circuit domain dropping CSFB
The device of breath, it is characterised in that described device also includes：4th control unit, for control caller MSC,
Called MS C and UE perform following operation：Caller MSC continues to call, and obtains the route of called UE
Information and roaming number；Called MS C is received after caller MSC incoming call request, is indicated called
UE is fallen after rise to 2G/3G networks, and positional information is sent to called MS C by called UE；And sent out to MME
Paging request is sent, with call establishment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610034319.5A CN106982422B (en) | 2016-01-19 | 2016-01-19 | Method and device for acquiring 2G/3G location area information in circuit switched fallback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610034319.5A CN106982422B (en) | 2016-01-19 | 2016-01-19 | Method and device for acquiring 2G/3G location area information in circuit switched fallback |
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| CN106982422A true CN106982422A (en) | 2017-07-25 |
| CN106982422B CN106982422B (en) | 2020-01-17 |
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| CN109673007A (en) * | 2017-10-16 | 2019-04-23 | 中国移动通信有限公司研究院 | A kind of user information acquiring method, equipment and computer readable storage medium |
| CN111935822A (en) * | 2020-08-03 | 2020-11-13 | 中国联合网络通信集团有限公司 | Pre-paging method, device and system |
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| CN106982422B (en) | 2020-01-17 |
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