CN108260097A - Solve method and eMSC that eSRVCC switching mistimings generate roam charge - Google Patents
Solve method and eMSC that eSRVCC switching mistimings generate roam charge Download PDFInfo
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- CN108260097A CN108260097A CN201611249649.2A CN201611249649A CN108260097A CN 108260097 A CN108260097 A CN 108260097A CN 201611249649 A CN201611249649 A CN 201611249649A CN 108260097 A CN108260097 A CN 108260097A
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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
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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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
Abstract
The present invention provides a kind of method and eMSC for solving eSRVCC switching mistimings and generating roam charge, the method includes：EMSC receives the handover request for being used to that UE to be made to be switched to GSM from VoLTE that base station is sent, and the handover request includes：User identifier and switching type information；EMSC obtains the proxy switch address different from eMSC itself switch address when user identifier is non-local mark and the switching type information is eSRVCC switching types；EMSC sends switching completion notice after circuit domain resource reservation is completed, to MME；For eMSC according to the corresponding time point generation switching ticket of switching completion notice is sent, the switch address switched in ticket is proxy switch address；The switching ticket is sent to BOSS systems by eMSC, so that proxy switch address of the BOSS systems in the ticket determines that the switching ticket does not generate wandering fee.The method of the present invention can rapidly and efficiently solve the problems, such as that eSRVCC switching mistimings generate roaming ticket and can not sort.
Description
Technical field
The present invention relates to a kind of communication technology, particularly a kind of method for solving eSRVCC switching mistimings and generating roam charge
And eMSC.
Background technology
VoLTE (Voice over LTE) is that 3GPP standards define：LTE voice solutions based on IMS network.It is logical
IMS network is crossed, the voice for the inheriting tradition that mobile operator not only can be seamless, short message service can also be by voice communications
It is integrated with abundant enhancing function, diversified service is provided.
VoLTE is to be used as service access, the voice solution of IMS network realization Service control by LTE network, is such as schemed
Shown in 1A：
1) service access：LTE network is complete IP network, does not have CS domains, and data service and voice multimedia service all carry
On LTE.
2) Service control：EPC networks do not have the call control function of voice and multimedia service, need through IMS nets
Network provides service control function.
When UE is moved between the network for supporting VoIP business, the continuity of speech business is kept, former net will be carried on
The VoIP speech businesses of network take over seamlessly target network CS domains, and terminal and the following flow of network support ensure VoLTE callings
Voice continuity：In VoLTE communication process, terminal is moved to TD-SCDMA/GSM overlay areas from VoLTE overlay areas
When, it should support through eSRVCC (enhancement Single Radio Voice Call Continuity, the movement of evolution
Switching centre) technology switching keep speech it is continuous.
The technical side of now net 2G radio resources realization voice switching is utilized when eSRVCC is and makes up VoLTE covering deficiencies at present
Case is covered with the depth of VoLTE networks, and eSRVCC amount of switched can gradually decline.Based on the considerations of utilization rate of equipment and installations, fortune is now netted
Quotient is sought to eMSC mostly using deployment is concentrated, i.e., more eMSC concentrations are deployed in provincial capital inside the province, for non-provincial capital
When eSRVCC switchings occur for VoLTE user, calling can be switched to eMSC.
ESRVCC switchings at present are primarily present following problem：
For the VoLTE user of non-provincial capital B, after eSRVCC switchings occur, (saved since calling is connected to eMSC
Nei Duotai eMSC concentrations are deployed in provincial capital A), therefore a ticket for roaming into provincial capital A can be generated.The ticket with it is general
Logical calling ticket indifference, Billing accounting system can not carry out sorting and pick single processing.But actually there is no unrestrained by the VoLTE user
Provincial capital A is swum over to, so this roaming ticket is wrong.
Existing technical solution and defect：
1) a kind of method for providing business domains and the equipment and call routing of input field integrated decision-making, simplifies VoLTE/
SRVCC routing procedures.When entering to exhale terminal from CS networks, business domains and the equipment of input field integrated decision-making judge in mobile CS networks
The whether double registrations of the terminal, and in the double registrations of the terminal, perform T-ADS flow decision input fields.Eliminate SRVCC use
It when family is registered in mobile CS networks, exhales from mobile CS networks, IMS and CS repeats call list the problem of, but can not eliminate eventually
The error bills that eMSC is generated when eSRVCC switches.
2) by extending the HSS in HLR and IMS in 2G/3G networks so that terminal is when carrying out network switching, mesh
Mark network in HLR or HSS according to the type information of terminal determine carry out network switching terminal whether be SRVCC types end
End when it is the terminal of SRVCC types to determine the terminal, indicates that HSS or HLR in source network delete terminal in source network
Registration, attachment information so that the terminal of SRVCC types only has access a network at same time point, avoids the occurrence of pseudo- double
Situation about treating, it is impossible to be fully solved roaming and charging sorting problem.
Invention content
In view of the drawbacks of the prior art, the present invention provide solve eSRVCC switching mistiming generate roam charge method and
EMSC can rapidly and efficiently solve the problems, such as that eSRVCC switching mistimings generate roaming ticket and can not sort.
In a first aspect, the present invention provides a kind of method for solving eSRVCC switching mistimings and generating roam charge, including：
EMSC receives the handover request for being used to that UE to be made to be switched to GSM from VoLTE that base station is sent, the handover request packet
It includes：User identifier and switching type information；
EMSC is obtained not when user identifier is non-local mark and the switching type information is eSRVCC switching types
It is same as the proxy switch address of eMSC itself switch address；
EMSC sends switching completion notice after circuit domain resource reservation is completed, to MME；
EMSC switches ticket, the exchange switched in ticket according to the corresponding time point generation of switching completion notice is sent
Machine address is proxy switch address；
The switching ticket is sent to BOSS systems by eMSC, so that agency of the BOSS systems in the ticket exchanges
Machine address determines that the switching ticket does not generate wandering fee.
Optionally, it when user identifier is non-local mark and the switching type information is eSRVCC switching types, obtains
The step of taking the proxy switch address different from eMSC itself switch address, including：
EMSC sends position acquisition request when switching type information is eSRVCC switching types, to HSS, and the position is obtained
Request is taken to include：User identifier；
EMSC receives the ownership place for the user identifier that HSS is sent, and the ownership place of the user identifier is the HSS according to institute
State what position acquisition request was searched；
The eMSC determines whether the user identifier is non-local mark according to the ownership place of the user identifier；
Correspondingly, it when it is non-local mark that eMSC, which determines user identifier, performs and obtains different from eMSC itself interchangers
The step of proxy switch address of address.
Optionally, the step of obtaining the proxy switch address different from eMSC itself switch address, including：
The proxy switch of eMSC itself switch address is selected differently from from pre-stored switch address list
Address, the proxy switch address are to realize that eSRVCC is switched to the agency used during UE is distributed and generation switching ticket and exchanges
Machine address.
Optionally, it when user identifier is non-local mark and the switching type information is eSRVCC switching types, obtains
After the step of taking the proxy switch address different from eMSC itself switch address, the method further includes：
If business current UE is local logical business, eMSC sends position updating request to HSS, and the location updating please
Ask including：User identifier and proxy switch address, so that HSS is checked according to user identifier and corresponding proxy switch address
Whether the proxy switch address recorded in HSS is consistent；
EMSC receives the location updating response that HSS is sent, and the location updating response is included in proxy switch address one
Location updating successful information during cause.
Optionally, the position acquisition request, position updating request and location updating response are MAP layers of message.
Optionally, handover request of the handover request for eSRVCC packet domains to circuit domain, the handover request include：
ESRVCC switching types information and user identifier.
Optionally, after eMSC completes circuit domain resource reservation, the step of switching completion notice is to MME is sent, including：
Switch completion notice and include circuit domain resource reservation result.
Second aspect, the present invention also provides a kind of method for solving eSRVCC switching mistimings and generating roam charge, features
It is, including：
When business current UE is local logical business, HSS receives the position updating request that eMSC is sent, and the position is more
New request includes：User identifier and the proxy switch address different from eMSC itself switch address；
HSS is according to user identifier, the proxy switch address checked in position updating request and the user recorded in HSS
Whether the proxy switch address of mark is consistent；
If consistent, HSS is responded to the location updating that eMSC is sent, and the location updating response is with including proxy switch
The consistent location updating successful information in location makes eMSC be responded according to the location updating and is interacted by MME and base station, with complete
ESRVCC into UE switches；
Proxy switch address in the position updating request is user identifier when being user identifier non-indigenous, eMSC
To realize that eSRVCC is switched to the address used in the ticket for not generating roam charge of UE distribution.
Optionally, before the HSS receives the step of position updating request that eMSC is sent, the method further includes：
HSS stores the corresponding proxy switch address of all user identifiers that preset local leads to business.
The third aspect, the present invention also provides a kind of eMSC, including：Receiving module, for receive base station transmission for making
UE is switched to the handover request of GSM from VoLTE, and the handover request includes：User identifier and switching type information；
Acquisition module, for user identifier be non-local mark when, and the switching type information for eSRVCC switching
During type, the proxy switch address different from eMSC itself switch address is obtained；
Sending module, for after eMSC completes circuit domain resource reservation, sending switching completion notice to MME；
Generation module switches ticket, the friendship in the ticket for being generated according to switching completion notice corresponding time point
Address change planes as proxy switch address；
Sending module is additionally operable to the switching ticket being sent to BOSS systems, so that ticket described in BOSS system identifications
In proxy switch address determine it is described switching ticket do not generate wandering fee.
As shown from the above technical solution, the present invention solves the method and eMSC that eSRVCC switching mistimings generate roam charge,
By eMSC when generating ticket, itself switch address is not filled in, but proxy switch address, indicate the switching words
Single is not services of roaming, so as to which the proxy switch address in ticket described in BOSS system identifications be made to determine the switching ticket not
Wandering fee is generated, can rapidly and efficiently solve the problems, such as that eSRVCC switching mistimings generate roaming ticket and can not sort.
Description of the drawings
Figure 1A is the schematic diagram that voice of the prior art and multimedia service access；
Figure 1B is that the eSRVCC that solves that the embodiment of the present invention one provides switches the flow that mistiming generates the method for roam charge
Schematic diagram；
Fig. 2 is that the flow for the method that the solution eSRVCC that the embodiment of the present invention four provides switches mistiming generation roam charge is shown
It is intended to；
Fig. 3 is that the eSRVCC that solves that the embodiment of the present invention five provides switches the method signaling signal that mistiming generates roam charge
Figure；
Fig. 4 is the structure diagram of eMSC that the embodiment of the present invention six provides；
Fig. 5 is the structure diagram of eMSC that the embodiment of the present invention seven provides；
Fig. 6 is that the embodiment of the present invention eight solves the system structure diagram that eSRVCC switches mistiming generation roam charge.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention
Part of the embodiment, instead of all the embodiments.
At present, for the VoLTE user of non-provincial capital, after eSRVCC switchings occur, since calling is connected to provincial capital
City eMSC, therefore a ticket for roaming into provincial capital can be generated.The ticket and ordinary call ticket indifference, charging account
Business system can not carry out sorting and pick single processing.
Embodiment one
Figure 1B shows the method for solving eSRVCC switching mistiming generation roam charges that the embodiment of the present invention one provides
Flow diagram.
With reference to Figure 1B, the method for solution eSRVCC switching mistiming generation roam charges that the embodiment of the present invention one proposes is specific
Include the following steps：
101st, eMSC receives the handover request for being used to that UE to be made to be switched to GSM from VoLTE that base station is sent.
In this step, the handover request includes：User identifier and switching type information.
For example, the handover request is the handover request that MME is sent to eMSC, specially eSRVCC packet domains to electricity
The handover request in road domain, the handover request include：ESRVCC switching types information and user identifier.
102nd, eMSC is obtained when user identifier is non-local mark and the switching type information is eSRVCC switching types
Take the proxy switch address different from eMSC itself switch address.
In this step, eMSC is from storing in preset switch address list with being selected differently from eMSC itself interchangers
The proxy switch address of location.The switch address list of provincial capital eMSC only includes itself VRID (Virtual in the prior art
Route ID, switch address) list, for distributing to the UE of request eSRVCC switchings, and in the present embodiment, provincial capital eMS
Switch address list further includes one and acts on behalf of VRID different from itself VRID, for distributing to request eSRVCC non-indigenous
The UE of switching.
For example, the mode that eMSC increases proxy switch address is that configuration parameter is to be different from eMSC itself to exchange
The proxy switch address of machine address and configuration conditions for use are that the switching type information of the handover request is determined as eSRVCC
Switching type.
EMSC can modify to customized virtual switch address line parameter, increase and a switch address ginseng is configured
Number, configuration parameter are the proxy switch addresses different from eMSC itself switch address, and proxy switch address is according to friendship
Change planes address form setting public exchange address.Conditions for use is also configured in eMSC simultaneously, is judged in handover request
When carrying eSRVCC switching types information and non-local user identifier, proxy switch address is enabled, does not use itself
Switch address.If not carrying eSRVCC switching type information in handover request, eMSC will be with will distributing itself interchanger
Location is to terminal.
103rd, eMSC sends switching completion notice after circuit domain resource reservation is completed to MME.
In this step, switching completion notice includes circuit domain resource reservation result.It is understood that reserved circuit domain
Resource is to complete the premise that UE eSRVCC packet domains switch to circuit domain.
104th, eMSC switches ticket according to the corresponding time point generation of switching completion notice is sent, described to switch in ticket
Switch address is proxy switch address.
In this step, eSRVCC packet domains after LTE is switched to GSM, are carried by circuit domain to the switching of circuit domain,
Expense is according to duration based accounting, and the generation relative distribution of charge information, each network element all can according to oneself effect in a session and
The session information of acquisition generates ticket, the CTF of this case (Charging Trigger Function, the logic work(in charging process
Energy entity) it is embedded in the network element of MSCS (Mobile Switching Center Server, Mobile Switching Center Server) (such as
Network entity MSC, eMSC), it is responsible for generating ticket by network element.
For example, for eMSC to send the corresponding time point starting charging of switching completion notice, generation switches ticket, and institute
State switching ticket in switch address field be proxy switch address and be UE distribute switch address.
105th, the switching ticket is sent to BOSS systems by eMSC, so that BOSS systems are according in the switching ticket
Proxy switch address determines that the switching ticket does not generate wandering fee.
In this step, each network element will can singly be sent to BOSS (Business Operating Support if generation
System, operation support system), BOSS systems are associated processing to associated ticket.At step 104, eMSC is by institute
It states switching ticket and is sent to BOSS systems, the switch address field switched in ticket is proxy switch address, you can
It is non-roaming ticket to identify this ticket occurred when eSRVCC switches, makes generation of the BOSS systems in the switching ticket
Reason switch address determines that the switching ticket does not generate wandering fee.
The present embodiment, when generating ticket, does not fill in itself switch address by eMSC, but proxy switch address,
It is not services of roaming to indicate the switching ticket, so as to make the proxy switch address in ticket described in BOSS system identifications true
The fixed switching ticket does not generate wandering fee, and can rapidly and efficiently solve eSRVCC switching mistiming generation roaming tickets can not sort
Problem.
Embodiment two
In the embodiment of the present invention two, all steps including above-described embodiment one, wherein, one method of above-described embodiment
Step 102 further include following not shown sub-step, the step 102 includes：
1021st, eMSC sends position acquisition request when switching type information is eSRVCC switching types to HSS, described
Position acquisition request includes：User identifier.
In this step, when switching type information is eSRVCC switching types in the handover request that eMSC is sent according to MME,
MAP layers of message position acquisition request are sent to HSS (Home Subscriber Server, home subscriber server).
1022nd, eMSC receives the ownership place for the user identifier that HSS is sent, and the ownership place of the user identifier is the HSS
It is searched according to position acquisition request.
In this step, HSS determines the ownership place of user identifier according to user identifier and returns to eMSC.
1023rd, eMSC determines whether the user identifier is non-local mark according to the ownership place of the user identifier.
1024th, it when it is non-local mark that eMSC, which determines user identifier, performs and obtains different from eMSC itself interchangers
The step of proxy switch address of location.
For the present embodiment step 1021-1024 by eMSC according to the interaction with HSS, it is non-local mark to determine user identifier
Know, to be subsequently that UE assignment agent switch address is prepared.
Embodiment three
Now the local logical business of net, i.e. user can only be registered under the network in ownership city, enjoy the clothes that local device provides
Business.The roaming of the user of local logical business is limited, is that limit is realized based on the roaming interchanger list that user allows in HSS
System.The user of local logical business is opened, in HSS is only local interchanger list.Therefore when local general family hair
Raw eSRVCC switchings, when carrying out location updating, since user allows the interchanger list of registration not have provincial capital in HSS
The switch address of eMSC, therefore registration failure, cause follow-up business to fail.
Existing technical solution and defect：
The address of eMSC is increased to the roaming at local general family in HSS allows list.The program can solve local
Location updating unsuccessful problem during eSRVCC switchings occurs in local (belonging to city) call for general family.If but user
It roams under provincial capital's eMSC interchangers, VoLTE is set off in the region of no LTE coverings or user terminal, by
Increase the address of eMSC in HSS, that is, user has been allowed to be registered under the eMSC interchangers, then cause local general family can be with
Roaming city is successfully registered in, and the network and business of roaming place can be used, this has violated local general family and can only be registered in
Belong to urban network, the requirement for enjoying local service, so as to cause new roaming problem.For asking for local logical service-user
Topic, the present invention propose embodiment three.
It should be noted that previous embodiment one and embodiment two can not limit whether type of service is local logical business.
In the embodiment of the present invention three, all steps including above-described embodiment one.
If business current UE is local logical business, the step 102 of one method of above-described embodiment is further included with figure below not
The sub-step A01 to A02 shown, the step 102 include：
A01, eMSC send position updating request to HSS, and the position updating request includes：User identifier and agency exchange
Machine address, so that HSS checks the proxy switch address recorded in HSS according to user identifier and corresponding proxy switch address
It is whether consistent；
In this step, local interchanger list is not only included in HSS, further includes proxy switch address.Specifically
When networking, (user matches one profile of more bindings in the HSS interchanger lists for allowing to use corresponding to user identifier
Put), i.e. proxy switch address makes HSS that UE be allowed to be registered under proxy switch address.
Further, user identifiers and corresponding proxy switch address of the HSS in position updating request check HSS
Whether the proxy switch address of middle record is consistent, that is to say, that checks whether the general family in the local has pre-set generation
Manage switch address.
A02, eMSC receive the location updating response that HSS is sent, and the location updating response is with being included in proxy switch
Location updating successful information when location is consistent.
The proxy switch address checked in position updating request in HSS and the proxy switch address one recorded in HSS
During cause, UE is allowed to be registered under the proxy switch address of eMSC, transmission includes the successful location updating response of location updating.
In the present embodiment, by setting eMSC proxy switch address (being different from itself switch address VRID),
In eSRVCC handoff procedures, eMSC initiates the position update flow to HSS, by location updating MAP UPDATE LOCATION
Switch address in REQ message extends this as proxy switch address, the interchanger that HSS is recorded after being updated successfully in this way in position
Address is proxy switch address rather than former switch address.
In addition, to being removed in the switch address list for allowing roaming for the VoLTE user for opening local logical business in HSS
Along with eMSC proxy switch address outside local switch address, eSRVCC switchings and common call flow are distinguished, when this
When eSRVCC switchings occur for the general family in ground, position can successfully be carried out according to the proxy switch address of the eMSC stored in HSS
Update, normal use follow-up business thoroughly solve the problems, such as that the registering flow path at local general family in handoff procedure is limited.
Example IV
The problem of leading to service-user for above-mentioned local, the present invention propose example IV.
Fig. 2 shows the streams for solving eSRVCC switching mistimings and generating the method for roam charge that the embodiment of the present invention four provides
Journey schematic diagram.
With reference to Fig. 2, the method for solution eSRVCC switching mistiming generation roam charges that the embodiment of the present invention four proposes is specific
Include the following steps：
201st, when business current UE is local logical business, HSS receives the position updating request that eMSC is sent, institute's rheme
Update request is put to include：User identifier and the proxy switch address different from eMSC itself switch address.
202nd, HSS is according to user identifier, the proxy switch address checked in position updating request and recorded in HSS should
Whether the proxy switch address of user identifier is consistent.
In this step, user identifiers and corresponding proxy switch address of the HSS in position updating request are checked
Whether the proxy switch address recorded in HSS is consistent, that is to say, that it is pre-set to check whether the general family in the local has
Proxy switch address.If consistent, step 203 is performed.
203rd, HSS is responded to the location updating that eMSC is sent, and the location updating response includes proxy switch address one
The location updating successful information of cause makes eMSC be responded according to the location updating and is interacted by MME and base station, to complete UE
ESRVCC switching；
Proxy switch address in the position updating request is user identifier when being user identifier non-indigenous, eMSC
To realize that eSRVCC is switched to the address used in the ticket for not generating roam charge of UE distribution.
In addition, the local general family of this in step 202 does not have pre-set proxy switch address in HSS, perform
Block diagram unshowned 204.
204th, HSS is responded to the location updating that eMSC is sent, and the location updating response includes refusing location updating notice.
In the present embodiment, before step 201, the method further includes：HSS stores preset local and leads to all of business
The corresponding proxy switch address of user identifier.
By in the switch address list for allowing roaming of the VoLTE user to opening local logical business in HSS in addition to
Along with eMSC proxy switch address outside local switch address, eSRVCC switchings and common call flow are distinguished, is effectively solved
It has determined and has opened the local VoLTE user for leading to business registration problem in eSRVCC handoff procedures, roamed into provincial capital eMSC friendships
The problem of roaming is restricted when changing planes down, being set off VoLTE without the LTE regions covered or terminal.
It, can be with according to the proxy switch address of the eMSC stored in HSS when eSRVCC switchings occur for local general family
Success carries out location updating, normal use follow-up business, and the registering flow path for thoroughly solving local general family in handoff procedure is asked
Topic；In addition it is set as under local general family to provincial capital's eMSC interchangers, without the region of LTE coverings or user terminal
VoLTE is closed, the proxy switch address for there was only eMSC in the interchanger list due to allowing user registration in HSS does not have
The switch address of eMSC in itself, and in the position update flow under such scene, the location updating MAP of eMSC initiations
UPDATE LOCATION REQ message switching units address is eMSC addresses itself, therefore local general family can not be registered in roaming
Under the eMSC interchangers of ground provincial capital, roaming place network cannot be registered in by having met local general family, enjoy roaming place equipment
The requirement of service is provided.
The present embodiment four solves registration problem in local logical eSRVCC handoff procedures, locally leads to and closing VoLTE functions
Or LTE effectively improves client perception without the roaming restricted problem under covering scene.
Embodiment five
To be better understood from present disclosure, may specify that such as embodiment five.
The present embodiment five, when eSRVCC switchings occur, eMSC judges that this switches for eSRVCC according to handover request, initiates
To the position update flow of HSS, user data is downloaded, in location updating MAP UPDATE LOCATION REQ message, in MAP
The switch address of layer message extends this as proxy switch address, the interchanger that HSS is recorded after being updated successfully in this way in position
Location is proxy switch address rather than former switch address.
Simultaneously in the ticket on eMSC, the switch address field of user is recorded with extending this as eMSC proxy switch
Location, instead of the original eMSC switch address of itself, ticket when eSRVCC switchings occurring so as to indicate is non-roaming words
It is single.
The present embodiment five thoroughly solves the problems, such as that common VoLTE user generates roaming ticket BOSS and can not sort, and improves
Client perception.
Fig. 3 shows that the embodiment of the present invention five provides the method signaling that solution eSRVCC switching mistimings generate roam charge and shows
It is intended to.
As shown in figure 3, the method that embodiment five solves eSRVCC switching mistiming generation roam charges is as described below.
301st, UE-A is moved to LTE coverings edge, and the configuration of eNB sending measurings, terminal is indicated according to eNB, to neighboring community
It measures, and reporting measurement reports.
Certainly, in practical applications, terminal can periodicity sending measurement report, i.e. cycle monitoring serving cell and adjacent cell
RSRP, judgement reaches handoff threshold, and then sends measurement report to eNB.
302nd, eNB determines to initiate eSRVCC switchings, and selected target cell according to measurement report content；It is cut to MME transmissions
Request is changed, Target cell ID is carried in message, and passes through SRVCC HO Indication and indicates that this is switched to SRVCC switchings.
303rd, MME judges that this is switched to SRVCC switchings according to SRVCC HO Indication, will be in switching session
Audio medium stream (QCI=1) and other voice bearers are separated and are subsequently switched；MME is according in handover request message
Target cell selects an eMSC, and passes through Sv interfaces and pass through the handover request that iWF (interworking unit) is sent to eMSC, specifically
For the handover request of eSRVCC packet domains to circuit domain, which includes：ESRVCC switching type information (is switched to
SRVCC switches) and user identifier, can be step 101 in embodiment one content.
MME notices eMSC initiates circuit domain side resource reservation simultaneously, and ATCF is UE distribution before being carried in the message
STN-SR numbers.Other major parameters include user identifier (IMSI), C-MSISDN, Target Cell Identifier (Target Cell
ID) and the source eNB sides of transparent transmission are transmitted to radio related information (the Source to Target Transparent of target eNB
Container), with notify goal systems prepare resource.
That is, UE initiates measurement report, eNB triggering handover requests, and pass through MME and be forwarded to eMSC sides.
304th, eMSC finds VMSC according to Target cell from oneself adjacent position area list, sends MAP layers of message and carries out
Switch preparation request, preceding preparation is switched over notice.
305th, VMSC sends reorientation handover request message according to Target cell ID to target BSC.
306th, target BSC replys reorientation handover request ack message after distributing resource.
307th, VMSC, which is returned, prepares switching response message, completes interface-free resources and reserves.
308-312：EMSC and VMSC carries out BICC coding/decoding negotiations, completes core network link resource reservation.
Mode is established according to existing BICC carryings and reserves resource for UE-A.
Specifically, 308, eMSC sends initial address message (IAM, Initial Address Messege) to VMSC, to
VMSC sends required initial address power request.
309th, VMSC replys access parameter messages (APM, Access Parameters Message) to eMSC, described to connect
Enter parameter message and include the address power free time.
310th, eMSC establishes address according to access parameter messages, and to VMSC send address complete information (ACM,
Address Complete Message)。
311-312, further, VMSC reply APM message and ACM message, the APM message and ACM message to eMSC
Including carrying relevant parameter, the arrange parameter communicated news, mgw configuration parameters etc., BICC encoding and decoding rules etc..It is complete as a result,
Into core network link resource reservation.
That is, eMSC initiates resource reservation to VMSC, 2G/3G wireless network, and coordinate to complete the switching of wireless side.
313：EMSC returns to SRVCC switchings by iWF by Sv interfaces to MME, by ps domain to CS domain responses notice MME moneys
It reserves as a result, and carrying radio dependent parameters (Target to Sources of the target eNB to source eNB sides of transparent transmission in source
Transparent Container)。
314：If circuit domain side resource reservation has been completed, MME sends switching command message to eNB, carries Target to
Source Transparent Container parameters.
315：ENB is notified to send to UE and be connect certainly according to Target to Source Transparent Container parameters
The switching command of networking, notice UE-A can be switched to the Target cell of GSM from LTE.
UE-A starts to perform handoff procedure according to Target to Source Transparent Container parameters, when
UE eats dishes without rice or wine to be switched to GSM, and after being successfully accessed to UTRAN systems, Handover from UTRAN are sent to Target RNC
Complete message.
316-322：Target RNC sends HO Complete message to VMSC, notifies that MME is completed by switching after eMSC.
Specifically, 316, Target RNC first sends reorientation change detection to VMSC, if testing result is completed for switching, holds
Row 317, Target RNC relocate switching to VMSC and complete.
318th, VMSC sends Map layers of Message Processing access signaling to eMSC.
319th, response message (ANM is returned to after the completion of eMSC processing：answer message).
320th, VMSC sends Map layers of end signal to eMSC.
321st, eMSC sends ps domain to CS domains switching completion notice to MME, can be the interior of step 103 in embodiment one
Hold.
That is, eMSC initiates resource reservation application to IMS network elements, and coordinates to be accomplished to terminal monitoring measurement report,
Judgement reaches handoff threshold, initiates measurement report to eNB, triggers handover request, eMSC sides are forwarded to by MME.
Next, eMSC switches ticket, the switching ticket according to the corresponding time point generation of switching completion notice is sent
In switch address for proxy switch address, can be the content of step 104 in embodiment one.
323rd, eMSC sending out SRVCC switching, by ps domain to CS domain requests triggering access side switching flow while, also to
P-CSCF/ATCF Proxy Call Session Control Function (Proxy-Call Session Control Funtion) sends SIP and invites
Please (INVITE) message, the switching flow of triggering session level are carried in message from the MME STN-SR obtained and C-MSISDN,
The SDPoffer information (ServiceData Point, service data point) of MSC sides is carried simultaneously.
324th, ATCF receives INVITE message, judges that the message is to be switched to generate by eSRVCC according to wherein STN-SR numbers
Afterwards, ATCF obtains C-MSISDN from INVITE message, with reference to locally preserve+g.3gpp.srvcc mark, eSRVCC are related
Information (ATU-STI etc.) determines the Active state sessions that UE-A needs switch.In the encoding and decoding list for judging eSRVCC transmissions
The volume solution after former session negotiation is returned comprising the encoding and decoding used after former session negotiation.
ATCF carries out media negotiation modification simultaneously, creates media endpoints, completes to connect with eSRVCC sides point.It returns
EMSCOK message carries the SDP information that local terminal creates endpoint.
325th, eMSC receives response to ATCF transmissions.
Next, following steps 326-329, eMSC judge that this switches for eSRVCC, initiate to arrive the location updating stream of HSS
Journey downloads user data, in location updating MAP UPDATE LOCATION REQ message, in the switch address of MAP layers of message
Proxy switch address is extended this as, the switch address that HSS is recorded after being updated successfully in this way in position is proxy switch address
Rather than former switch address.Simultaneously the switch address field of user is recorded when eSRVCC switches in the ticket on eMSC
EMSC proxy switch address is extended this as, instead of the original eMSC switch address of itself.
It illustrates, if business current UE is local logical business, according to embodiment one, embodiment three, four, holds
Row step 326-329 illustrated below.
326th, eMSC initiates the location updating to HSS, and the position updating request includes：User identifier and proxy switch
Address, so that HSS records user identifier and corresponding proxy switch address, can be the content of step A01 in embodiment two.
327th, the location updating response that HSS is sent, location updating response be included in proxy switch address it is consistent when
Location updating successful information, can be step A02 in embodiment two content.
328th, eMSC, which is returned, represents to receive, and is specially inserted into user data, user data is to be exchanged different from eMSC itself
The proxy switch address of machine address.
329th, HSS sends location updating success response, and the location updating response includes location updating successful information.
It should be noted that according to embodiment one and embodiment two, following steps 326-329 is performed.
326th, eMSC initiates the location updating to HSS, and the position updating request includes：User identifier specifically, is sent
Can be the content of step 1021 in embodiment two for obtaining the position updating request of position.
327th, the location updating response that HSS is sent, returns to user identifier ownership place, can be step 1022 in embodiment two
Content.
328th, eMSC, which is returned, represents to receive.EMSC sends response extremely when user identifier ownership place is non-local mark
HSS, response are specially to be inserted into user data, and user data is for the proxy switch different from eMSC itself switch address
Location can be step 1023 and 1024 content in embodiment two.
329th, HSS sends location updating success response, and the location updating response includes location updating successful information.
In conclusion above-described embodiment one to five at least has following technique effect：
1) innovation, which proposes eMSC sides, increases proxy switch concept of address, it is only necessary in the position updating request of initiation
Switch address extend this as proxy switch address, the friendship of user registration in the charging bill that eSRVCC switching flows are generated
Address field of changing planes extends this as eMSC proxy switch address, you can it is non-roaming to indicate ticket when eSRVCC switchings occur
Ticket can not sort so as to thoroughly solve the problems, such as that VoLTE user eSRVCC switching mistimings generate roaming ticket.
2) eMSC mistakes lead to the problem of roaming ticket when, effectively preventing VoLTE user eSRVCC switchings, use being promoted
Family perceives and the performance of service companies credit profile has a strong effect.
3), without carrying out large-scale redevelopment to existing net, realization is simple and practicable, can rapidly and efficiently solve VoLTE user
ESRVCC switchings mistiming leads to the problem of roaming ticket and can not sort.
4), for opening the local VoLTE user for leading to business, to solve roaming limitation when VoLTE user eSRVCC switches
Problem, proposes eMSC sides increase proxy switch concept of address on eMSC sides original position update process base, and eMSC sides are true
It is fixed to judge when being the location updating initiated by eSRVCC switching flows, in the location update message of initiation, in MAP layers of message
Switch address extends this as proxy switch address.Coordinate allows to overflow in HSS to the VoLTE user for opening local logical business
EMSC proxy switch address is dosed in the switch address list of trip, is able to distinguish eSRVCC switchings and common call flow, have
Effect solves the problems, such as that the VoLTE user for opening local logical business can not register in eSRVCC handoff procedures.
5) it, by distinguishing eSRVCC switchings and common call flow, effectively solves to open the VoLTE user of local logical business
It roams under provincial capital's eMSC interchangers, roaming limitation during VoLTE is set off without the LTE regions covered or terminal
The problem of.
6) without carrying out large-scale redevelopment to existing net, realization is simple and practicable, can thoroughly solve to open local logical business
Business restricted problem when registration problem and user roam when VoLTE user eSRVCC switches.
Embodiment six
Fig. 4 shows the structure diagram for the eMSC that the embodiment of the present invention six provides.
The eMSC that the embodiment of the present invention six provides, as shown in figure 4, including：
Receiving module 41, for receive base station transmission for handover request that UE is made to be switched to from VoLTE GSM, it is described
Handover request includes：User identifier and switching type information；
Acquisition module 42, for being non-local mark, and the switching type information switches for eSRVCC in user identifier
During type, the proxy switch address different from eMSC itself switch address is obtained；
Sending module 43, for after circuit domain resource reservation is completed, switching completion notice to be sent to MME；
Generation module 44, for according to the corresponding time point generation switching ticket of switching completion notice, the switching ticket
In switch address be proxy switch address；
Sending module 43 is additionally operable to the switching ticket being sent to BOSS systems, so that BOSS systems are according to the words
Proxy switch address in list determines that the switching ticket does not generate wandering fee.
Six eMSC of the present embodiment performs preceding method embodiment, and the principle of work and power and technique effect are no longer described in detail.
Embodiment seven
Fig. 5 shows the structure diagram for the eMSC that the embodiment of the present invention seven provides.
The present invention applies the eMSC of the offer of example seven, as shown in figure 5, including：Processor (processor) 51, memory
(memory) 52, communication interface (Communications Interface) 53 and bus 54；
Wherein, the processor 51, memory 52, communication interface 53 complete mutual communication by the bus 54；
The communication interface 53 is for the information transmission between eMSC and other equipment；
The processor 51 is used to call the program instruction in the memory 52, to perform above method embodiment, example
Such as include：
EMSC receives the handover request for being used to that UE to be made to be switched to GSM from VoLTE that base station is sent, the handover request packet
It includes：User identifier and switching type information；
EMSC is obtained not when user identifier is non-local mark and the switching type information is eSRVCC switching types
It is same as the proxy switch address of eMSC itself switch address；
EMSC sends switching completion notice after circuit domain resource reservation is completed, to MME；
EMSC switches ticket, the exchange switched in ticket according to the corresponding time point generation of switching completion notice is sent
Machine address is proxy switch address；
The switching ticket is sent to BOSS systems by eMSC, so that agency of the BOSS systems in the switching ticket
Switch address determines that the switching ticket does not generate wandering fee.
Seven eMSC of the present embodiment performs preceding method embodiment, and the principle of work and power and technique effect are no longer described in detail.
Embodiment eight
Fig. 6 shows that embodiment eight provided by the invention solves the system that eSRVCC switching mistimings generate roam charge.
Embodiment eight solves the system that eSRVCC switching mistimings generate roam charge, including：UE、ENB、MME、BSC、
VMSC, eMSC, HSS and ATCF.
EMSC is interacted with other network elements in the present embodiment eight, performs preceding method embodiment, the principle of work and power and technology
Effect is no longer described in detail.
It will be appreciated by those of skill in the art that although some embodiments described herein include being wrapped in other embodiments
The certain features rather than other feature included, but the combination of the feature of different embodiment mean in the scope of the present invention it
It is interior and form different embodiments.
It will be understood by those skilled in the art that each step in embodiment can with hardware realization or at one or
The software module run on the multiple processors of person is realized or is realized with combination thereof.Those skilled in the art should manage
Solution, can realize according to embodiments of the present invention one using microprocessor or digital signal processor (DSP) in practice
The some or all functions of a little or whole components.The present invention is also implemented as performing method as described herein
Some or all equipment or program of device (for example, computer program and computer program product).
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can not depart from this hair
Various modifications and variations are made in the case of bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (10)
- A kind of 1. method for solving eSRVCC switching mistimings and generating roam charge, which is characterized in that including：EMSC receives the handover request for being used to that UE to be made to be switched to GSM from VoLTE that base station is sent, and the handover request includes：With Family identifies and switching type information；When user identifier is non-local mark and the switching type information is eSRVCC switching types, acquisition is different from eMSC The proxy switch address of eMSC itself switch address；EMSC sends switching completion notice after circuit domain resource reservation is completed, to MME；EMSC is generated according to transmission switching completion notice corresponding time point switches ticket, the interchanger in the switching ticket Location is proxy switch address；The switching ticket is sent to BOSS systems by eMSC, so that agency of the BOSS systems in the switching ticket exchanges Machine address determines that the switching ticket does not generate wandering fee.
- 2. according to the method described in claim 1, it is characterized in that, it is non-local mark and the switching type in user identifier Information be eSRVCC switching types when, obtain different from eMSC itself switch address proxy switch address the step of, packet It includes：EMSC sends position acquisition request when switching type information is eSRVCC switching types, to HSS, and the position acquisition please Ask including：User identifier；EMSC receives the ownership place for the user identifier that HSS is sent, and the ownership place of the user identifier is the HSS according to institute's rheme It puts and obtains what request was searched；The eMSC determines whether the user identifier is non-local mark according to the ownership place of the user identifier；Correspondingly, it when it is non-local mark that eMSC, which determines user identifier, performs and obtains different from eMSC itself switch address Proxy switch address the step of.
- 3. according to the method described in claim 1, it is characterized in that, it is non-local mark and the switching type in user identifier Information be eSRVCC switching types when, obtain different from eMSC itself switch address proxy switch address the step of it Afterwards, the method further includes：If business current UE is local logical business, eMSC sends position updating request, the position updating request packet to HSS It includes：User identifier and proxy switch address, so that HSS checks HSS according to user identifier and corresponding proxy switch address Whether the proxy switch address of middle record is consistent；EMSC receives the location updating response that HSS is sent, location updating response be included in proxy switch address it is consistent when Location updating successful information.
- 4. according to claim 1-3 any one of them methods, which is characterized in that obtain and be different from eMSC itself switch address Proxy switch address the step of, including：A proxy switch for being different from eMSC itself switch address is selected from pre-stored switch address list Address, the proxy switch address are to realize that eSRVCC is switched to the agency used during UE is distributed and generation switching ticket and exchanges Machine address.
- 5. according to claim 1-3 any one of them methods, which is characterized in that the position acquisition request, location updating please It asks and location updating response is MAP layers of message.
- 6. according to claim 1-3 any one of them methods, which is characterized in thatHandover request of the handover request for eSRVCC packet domains to circuit domain, the handover request include：ESRVCC switches class Type information and user identifier.
- 7. according to claim 1-3 any one of them methods, which is characterized in that eMSC after circuit domain resource reservation is completed, The step of switching completion notice being sent to MME, including：Switch completion notice and include circuit domain resource reservation result.
- A kind of 8. method for solving eSRVCC switching mistimings and generating roam charge, which is characterized in that including：When business current UE is local logical business, HSS receives the position updating request that eMSC is sent, and the location updating please Ask including：User identifier and the proxy switch address different from eMSC itself switch address；HSS is according to user identifier, the proxy switch address checked in position updating request and the user identifier recorded in HSS Proxy switch address it is whether consistent；If consistent, HSS is responded to the location updating that eMSC is sent, and the location updating response includes proxy switch address one The location updating successful information of cause makes eMSC be responded according to the location updating and is interacted by MME and base station, to complete UE ESRVCC switching；Proxy switch address in the position updating request is user identifier when being user identifier non-indigenous, and eMSC is real Existing eSRVCC is switched to the address used in the ticket for not generating roam charge of UE distribution.
- 9. according to the method described in claim 8, it is characterized in that,Before the HSS receives the step of position updating request that eMSC is sent, the method further includes：HSS stores the corresponding proxy switch address of all user identifiers that preset local leads to business.
- 10. a kind of eMSC, which is characterized in that including：Receiving module, for receive base station transmission for handover request that UE is made to be switched to from VoLTE GSM, the switching please Ask including：User identifier and switching type information；Acquisition module, for user identifier be non-local mark, and the switching type information be eSRVCC switching types when, Obtain the proxy switch address different from eMSC itself switch address；Sending module, for after circuit domain resource reservation is completed, switching completion notice to be sent to MME；Generation module, for according to the corresponding time point generation switching ticket of switching completion notice, the friendship switched in ticket Address change planes as proxy switch address；Sending module is additionally operable to the switching ticket being sent to BOSS systems, so that BOSS systems are according in the ticket Proxy switch address determines that the switching ticket does not generate wandering fee.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113630786A (en) * | 2020-05-09 | 2021-11-09 | 中国移动通信集团安徽有限公司 | Network data flow prediction method and device, computing equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577510A (en) * | 2011-12-28 | 2012-07-11 | 华为技术有限公司 | Method and device for maintaining call continuity |
| CN103561432A (en) * | 2013-10-28 | 2014-02-05 | 华为技术有限公司 | Single radio voice call continuity transfer method, equipment and system |
| CN103731814A (en) * | 2013-12-26 | 2014-04-16 | 中兴通讯股份有限公司 | Synthetic decision-making device for service domain and access domain and route calling method |
| CN104137580A (en) * | 2012-07-23 | 2014-11-05 | 华为技术有限公司 | Charging information processing method, apparatus, and system |
| US20150063310A1 (en) * | 2012-05-15 | 2015-03-05 | Huawei Technologies Co., Ltd. | Method and Apparatus for Removing Policy and Charging Control Rule from Default Bearer |
-
2016
- 2016-12-29 CN CN201611249649.2A patent/CN108260097B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577510A (en) * | 2011-12-28 | 2012-07-11 | 华为技术有限公司 | Method and device for maintaining call continuity |
| US20150063310A1 (en) * | 2012-05-15 | 2015-03-05 | Huawei Technologies Co., Ltd. | Method and Apparatus for Removing Policy and Charging Control Rule from Default Bearer |
| CN104137580A (en) * | 2012-07-23 | 2014-11-05 | 华为技术有限公司 | Charging information processing method, apparatus, and system |
| CN103561432A (en) * | 2013-10-28 | 2014-02-05 | 华为技术有限公司 | Single radio voice call continuity transfer method, equipment and system |
| CN103731814A (en) * | 2013-12-26 | 2014-04-16 | 中兴通讯股份有限公司 | Synthetic decision-making device for service domain and access domain and route calling method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113630786A (en) * | 2020-05-09 | 2021-11-09 | 中国移动通信集团安徽有限公司 | Network data flow prediction method and device, computing equipment and storage medium |
| CN113630786B (en) * | 2020-05-09 | 2023-08-15 | 中国移动通信集团安徽有限公司 | Network data traffic prediction method, device, computing equipment and storage medium |
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