CN101128053B - Method, element and system for switching between core network control systems - Google Patents
Method, element and system for switching between core network control systems Download PDFInfo
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- CN101128053B CN101128053B CN2007101420378A CN200710142037A CN101128053B CN 101128053 B CN101128053 B CN 101128053B CN 2007101420378 A CN2007101420378 A CN 2007101420378A CN 200710142037 A CN200710142037 A CN 200710142037A CN 101128053 B CN101128053 B CN 101128053B
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Abstract
The utility model discloses a method for switching between the control systems of the core network, which is characterized in that when setting up the calling process, the core network can obtain the user information of the calling party and understand that according to the corresponding relation of the preset user information and the switching type, the core network can transmit the business switching unit to the calling party at the same time when the core network returning the assigned request messages born by the empty ports to the calling party if the corresponding switching type is allowed to switch between the systems; when the core network transmit the switched request message to the side of the switching destination, the business switching unit is also transmitted in company with the switched request message to the side of the switching destination for switching between the systems. The utility model also discloses the network elements and the systems that can be switched between the control systems. The utility model has the advantages of flexible switching control between systems according to different contents of the user information, differential services for users with different types in different networks and reasonable network resource utilization.
Description
Technical field
The present invention relates to the calling switching between the control different system in the moving communicating field, relate in particular to method, network element and the system switched between a kind of core net control system.
Background technology
In present communications network system, 3G network system and 2G network system are also deposited, and exist total professional in 3G network system and 2G network system.Therefore, can distribute different business/users between two networks, carry out such as video traffic is put in the newly-built 3G network, the usim card user is put in the 3G network, it is medium perhaps the serious 2G cell user of some loads to be put into 3G network.
At present, prior art has proposed Access Network can control the method for whether initiating to switch between system according to business switching cell, be specially: when switching between system's back-up system, professional (Service Handover) cell that switches carries in the mobile switching centre of core net (MSC) in the assignment message that issues, when base station sub-system (BSS) receives the assignment message that comprises described Service Handover cell, store this cell and determine whether initiate to switch between system according to the information that this cell instructs.When the value of described Service Handover cell when allowing switching command, the switching between then described Access Network initiation system; Otherwise, do not switch.
In carrying out the invention process, the inventor finds that there are the following problems at least in the prior art:
Prior art has provided a kind of method how side is initiated to switch between system that inserts, and promptly whether switches initiation that cell switches between can control system by the business of MSC indication.
Yet, more single in the prior art to the form switched between system, can not carry out switching controls flexibly according to concrete network condition, user situation or service conditions, therefore can not satisfy the rational Application of network better.
Summary of the invention
In view of this, the purpose of the embodiment of the invention is to provide method, network element and the system of switching between a kind of core net control system.
The method of switching between a kind of core net control system that the embodiment of the invention provides comprises:
In call establishment, core net is obtained the user profile of calling party, know according to this user profile that presets and the corresponding relation of switching type, and when the switching type corresponding with described user profile is when switching between the permission system,
Then described core net is switched cell with business and is sent to described calling party in company with this empty port load-supporting assignment request message when described calling party is returned the empty port load-supporting assignment request message; And described core net is when the target side of switching sends handoff request message, business switched target side that cell is sent to described switching in company with this transmission handoff request message carry out switching between system.
Based on technique scheme, the embodiment of the invention also discloses in a kind of core net the network element that switches between can control system, comprising:
The switching type memory cell is used to store the user profile that presets and the corresponding relation of switching type;
The user profile acquiring unit is used at call establishment, obtains the user profile of calling party, and described user profile is informed the switching type judging unit;
Described switching type judging unit, after being used to receive described user profile, corresponding relation according to this user profile and switching type in the described switching type memory cell is known, when the switching type corresponding with described user profile is when switching between the permission system, the judged result informing business that will allow to switch switches the cell generation unit;
The described professional cell generation unit that switches, be used for after receiving the judged result that described permission is switched, generate the professional cell that switches, and the described professional cell that switches is sent to described calling party in company with the empty port load-supporting assignment request message, and with described professional cell is sent to described switching in company with this transmission handoff request message the target side of switching.
Meanwhile, the embodiment of the invention also discloses a kind of system of switching between can control system, comprise: core net, calling party and be arranged in described core net can control system between the network element that switches, wherein, the described core net of described call direction makes a call, and the described network element that is arranged in described core net comprises:
The switching type memory cell is used to store the user profile that presets and the corresponding relation of switching type;
The user profile acquiring unit is used at call establishment, obtains the user profile of calling party, and described user profile is informed the switching type judging unit;
Described switching type judging unit, after being used to receive described user profile, corresponding relation according to this user profile and switching type in the described switching type memory cell is known, when the switching type corresponding with described user profile is when switching between the permission system, the judged result informing business that will allow to switch switches the cell generation unit;
The described professional cell generation unit that switches, be used for after receiving the judged result that described permission is switched, generate the professional cell that switches, and the described professional cell that switches is sent to described calling party in company with the empty port load-supporting assignment request message, and with described professional cell is sent to described switching in company with this transmission handoff request message the target side of switching.
Compared with prior art, the embodiment of the invention has the following advantages:
Whether the embodiment of the invention can allow to switch between system according to the corresponding relation judgement of user profile and switching type, and when switching between the permission system, with business switch cell in company with the empty port load-supporting assignment request message, and handoff request message be sent to respectively described calling party, and the target side of switching carry out switching between system.In the embodiment of the invention, core net can make dissimilar users realize differentiated service at heterogeneous networks according to switching between the flexible control system of different content in the user profile, to reach the purpose that network rationally utilizes, realizes the equilibrium of cell load.
Description of drawings
Fig. 1 is the flow chart of a method embodiment switching between core net control system of the present invention;
Fig. 2 is the flow chart of another method embodiment of switching between core net control system of the present invention;
Fig. 3 is the flow chart of another method embodiment of switching between core net control system of the present invention;
Fig. 4 is the structured flowchart of a network element embodiment switching between can control system in the core net of the present invention;
Fig. 5 is the structured flowchart of another network element embodiment of switching between can control system in the core net of the present invention;
The structured flowchart of the system embodiment that Fig. 6 switches between can control system for the present invention.
Embodiment
The disclosed a kind of method of switching between the core net control system of using of the embodiment of the invention, comprise: in call establishment, core net is obtained the user profile of calling party, know according to this user profile that presets and the corresponding relation of switching type, when the switching type corresponding with described user profile is when switching between the permission system
Then described core net is switched cell with business and is sent to described calling party in company with this empty port load-supporting assignment request message when described calling party is returned the empty port load-supporting assignment request message; And described core net is when the target side of switching sends handoff request message, business switched target side that cell is sent to described switching in company with this transmission handoff request message carry out switching between system.
Wherein, when described calling party is the calling subscriber, the business request information that described core net can be sent from the calling subscriber who receives, and/or obtain calling subscriber's user profile in the call setup message, the user profile of described business request information comprises at least: user's access zone, user's international mobile subscriber identification code (IMSI); The user profile of described call setup message comprises at least: user's call business type.
Wherein, when described calling party is the called subscriber, obtain called subscriber's user profile page-response message that described core net can be sent from the called subscriber and/or the call confirmation message.
Core net can be according to user IMSI type in the embodiment of the invention, the Client-initiated type of service is (such as audio call, video call, the data service of low speed, data service at a high speed etc.) etc. user profile respectively or mutually combination judge whether the service request that this calling party is initiated is to switch between system so that the configuration of professional switching cell.Thereby can control switching neatly, or switching from the UMTS system to gsm system from the global mobile communication gsm system to universal mobile communications UMTS system.Make the user of different IMS I type, user and other dissimilar users of different business realize differentiated service, reach the purpose that network rationally utilizes, realize the equilibrium of cell load at different networks.
Because calling party can be the calling subscriber described in the embodiment of the invention, also can be the called subscriber, therefore, for convenience of description, calling party among the following embodiment all is example with calling subscriber, describes core net in detail and how to come to switch between control system according to user profile.
As shown in Figure 1, it is the flow chart of a method embodiment of core net control system switching of the present invention, this method is that the user is from 2G system originating call, core net is according to this Client-initiated business request information (Service_Request), and the user profile in the call setup message (SETUP), calling is switched in the 3G system, core net described in the present embodiment can be mobile switching centre (MSC), if the base station in the 2G system (BSC) is as calling party, radio network controller in the 3G system (RNC) is as switching side, and this method may further comprise the steps:
User in the step 101:2G system makes a call, and BSC sends business request information (Service_Request) to MSC.At least the access zone that comprises the user in the described business request information, and user's international mobile subscriber identification code information such as (IMSI).
Step 102: described MSC returns a business to described BSC and accepts message (Service_Accept) after receiving described business request information, notifies the user to make a call.
Step 103: described BSC sends call setup message (SETUP) to described MSC after receiving that this business is accepted message, this message comprises user's call business type at least.Wherein, described call business type can be divided into types such as voice or data.
Step 104: described MSC returns a calling to described BSC and is carrying out message (Call_Proceeding) after receiving described user's call setup message, and the indication customer call is just in handshaking procedure.
Step 105: described MSC obtains user profile from described business request information and/or call setup message, corresponding relation according to this user profile that presets and switching type judges whether to switch between the permission system, when the switching type corresponding with described user profile is when switching between the permission system, the then selected professional value of switching cell is switched for allowing, and described MSC is after distributing ground resource for the calling subscriber, execution in step 106.Wherein, the described professional value of switching cell also can comprise: can switch but do not switch as far as possible and do not allow to switch two kinds.
Wherein, described MSC is according to this user profile that presets and the corresponding relation of switching type, the switching type of knowing the user profile correspondence be the method switched between the permission system for example:
If described MSC knows that from described calling subscriber's business request information this user's the sign of IMSI for allowing to switch perhaps known for allowing the zone of switching in the access zone at this user place; Perhaps,
If described MSC knows from described calling subscriber's call setup message, this user's call business type correspondence be to switch between the permission system; Perhaps,
The combination of above-mentioned situation, then described MSC thinks that this switching type is to switch between the permission system.Wherein, described user's call business type is divided into: audio call, video call, the data service of low speed, types such as data service at a high speed.Described user's the call business type and the corresponding relation of switching type can be provided with according to actual needs, and for example, data service does not allow to switch, and speech business then allows to switch.
Step 106: described MSC is sent to described BSC with the selected professional cell that switches together in company with empty port load-supporting assignment request message (Assignment_Request), indicates described BSC to set up empty port load-supporting.
Step 107: described BSC sets up empty port load-supporting after receiving described empty port load-supporting assignment request message, and after finishing, returns empty port load-supporting foundation to described MSC and finish message (Assignment_Complete).
Step 108: described BSC sends to switch to described MSC and requires message (Handover_Required), requires the switching between the initiation system.
Step 109: described MSC is after the switching of receiving described BSC requires message, and the RNC in the 3G system sends handoff request message (Relocation_Request), asks described RNC to prepare the resource of switching target side.
Step 110: the RNC of target side after described MSC returns a handoff request acknowledgement message (Relocation_Request_Acknowledge), carries out conventional steps such as follow-up switching and calling connection after receiving described handoff request message.
Need to prove, in the foregoing description step 105, can be to the determination methods of whether initiating to switch between system according to different user profile according to user's actual conditions setting.Simultaneously, described user profile also be not limited to above-mentioned enumerate as types such as customer service types.In the above-mentioned steps 105, described MSC also can be known the switching type of described calling party according to following steps after receiving described call setup message:
If described MSC knows from described calling subscriber's CAMEL-Subscription-Information, this user's ARD CAMEL-Subscription-Information is for only allowing to reside in current system, perhaps know when this user's priority is low, perhaps,
When if described MSC is known this user for dual-mode terminal, perhaps,
If described MSC from described user data, know this user roaming type correspondence be when switching between the permission system, perhaps,
Arbitrary combination in the above-mentioned situation,
Then described MSC thinks that the switching type of this calling party is to switch between the permission system.Wherein, the corresponding relation of described roaming type, priority and switching type all can set in advance according to actual needs, and for example, National roaming does not allow to switch, and international roaming then allows to switch; The high switching earlier of priority etc. also can be set.
In addition, the embodiment of the invention not only can be only come switching between decision-making system at certain user profile, and decision method combination in any that also can the corresponding switching of above-mentioned various user profile come final decision whether to initiate switching between system.So long as can reach the purpose of optimizing Internet resources, any combination of the user profile of switching between any decidable system and the decision method of different user information all falls into protection scope of the present invention.
Simultaneously, the above embodiment of the present invention one is the specific descriptions to the control method of switching between system, in described step 105, the business request information of sending from described calling subscriber as described MSC, and know in the call setup message, this user does not allow to switch, the business that then described MSC carries in the assignment message that described BSC issues in subsequent step is switched the value of cell for not allowing switching, then at this moment, the BSC of described Calling Side does not send Handover_Required message to network, is connected but directly set up normal the calling with called former access side.
Core net can insert the zone according to the user in the foregoing description, User Priority, the user roams type, user IMSI type, user ARD CAMEL-Subscription-Information, the Client-initiated type of service is (such as audio call, video call, the data service of low speed, whether data services at a high speed etc.) make up the service request of judging this calling party initiation respectively or mutually is to switch between system, make core net can control switching flexibly, realize the equilibrium of cell load, and then more reasonably utilize network from the 2G system to the 3G system.
As shown in Figure 2, it is the schematic flow sheet of another method embodiment of core net control system switching of the present invention, this method is that the user is from 3G system originating call, core net is according to this Client-initiated business request information, and the user profile in the call setup message, and calling is switched in the 2G system, core net described in the present embodiment can be MSC, if the RNC in the 3G system is as calling party, the BSC in the 2G system is as switching side, and this method may further comprise the steps:
User in the step 201:3G system makes a call, and RNC sends business request information (Service_Request) to MSC.At least the access zone, and user's the international mobile subscriber identification code information such as (IMSI) that comprise the user in the described business request information.
Step 202: described MSC returns a business to described RNC and accepts message (Service_Accept) after receiving described business request information, notifies the user to make a call.
Step 203: described RNC sends call setup message (SETUP) to described MSC after receiving that this business is accepted message, comprise user's call business type in this message at least.Wherein, described call business type can be divided into types such as voice or data.
Step 204: described MSC returns a calling to described RNC and is carrying out message (Call_Proceeding) after receiving described user's call setup message, and the indication customer call is just in handshaking procedure.
Step 205: described MSC obtains user profile from described business request information and/or call setup message, corresponding relation according to this user profile that presets and switching type judges whether to switch between the permission system, when the switching type corresponding with described user profile is when switching between the permission system, the then selected professional value of switching cell is switched for allowing, and described MSC is after distributing ground resource for the calling subscriber, execution in step 206.Wherein, the described professional value of switching cell also can comprise: can switch but do not switch as far as possible and do not allow to switch two kinds.
Wherein, described MSC is according to this user profile that presets and the corresponding relation of switching type, the switching type of knowing the user profile correspondence be the method switched between the permission system for example:
If described MSC knows that from described calling subscriber's business request information this user's the sign of IMSI for allowing to switch perhaps known for allowing the zone of switching in the access zone at this user place; Perhaps,
If described MSC knows from described calling subscriber's call setup message, this user's call business type correspondence be to allow to switch; Perhaps,
The combination of above-mentioned situation, then described MSC thinks that this switching type is to switch between the permission system.Wherein, described user's call business type is divided into: audio call, video call, the data service of low speed, types such as data service at a high speed.Described user's the call business type and the corresponding relation of switching type can be provided with according to actual needs, and for example, data service does not allow to switch, and speech business then allows to switch.
Step 206: the business switching cell that described MSC will select is sent to described with empty port load-supporting assignment request message (Assignment_Request), indicate the described empty port load-supporting of setting up.
Step 207: described RNC sets up empty port load-supporting after receiving described empty port load-supporting assignment request message, and after finishing, returns empty port load-supporting foundation to described MSC and finish message (Assignment_Response).
Step 208: described RNC sends to switch to described MSC and requires message (Relocation_Required), requires the switching between MSC initiation system.
Step 209: described MSC is after the switching of receiving described RNC requires message, and the BSC in the 2G system sends handoff request message (Handover_Request), asks described BSC to prepare the resource of switching target side.
Step 210: the BSC of target side after described MSC returns handoff request acknowledgement message (Handover_Request_Acknowledge), carries out conventional steps such as follow-up switching and calling connection after receiving described handoff request message.
Core net can be according to user IMSI type in the foregoing description, the Client-initiated type of service is (such as audio call, video call, the data service of low speed, whether data services at a high speed etc.) make up the service request of judging this calling party initiation respectively or mutually is to switch between system, make core net can control switching flexibly, realize the equilibrium of cell load, and then more reasonably utilize network from the 3G system to the 2G system.
Need to prove, in the step 205 of the foregoing description, the judgment principle of whether initiating to switch can be provided with voluntarily according to user's demand.Simultaneously, described user profile also be not limited to above-mentioned enumerate as types such as customer service types.In the above-mentioned steps 105, after described MSC is receiving described call setup message, also can know the switching type of described calling party according to following steps:
If described MSC knows from described calling subscriber's CAMEL-Subscription-Information, this user's ARD CAMEL-Subscription-Information is for only allowing to reside in current system, perhaps know when this user's priority is low, perhaps,
When if described MSC is known this user for dual-mode terminal, perhaps,
If described MSC from described user data, know this user roaming type correspondence be when switching between the permission system, perhaps,
Arbitrary combination in the above-mentioned situation, then described MSC thinks that the switching type of this calling party is to switch between the permission system.Wherein, the corresponding relation of described roaming type, priority and switching type all can set in advance according to actual needs, and for example, National roaming does not allow to switch, and international roaming then allows to switch; The high switching earlier of priority etc. also can be set.
In addition, the embodiment of the invention not only can be only come switching between decision-making system at certain user profile, and decision method combination in any that also can the corresponding switching of above-mentioned various user profile come final decision whether to initiate switching between system.So long as can reach the purpose of optimizing Internet resources, any combination of the user profile of switching between any decidable system and the decision method of different user information all falls into protection scope of the present invention.
Simultaneously, the present invention above-mentioned embodiment illustrated in fig. 2 be to switch to the specific descriptions of the method for handover control of 2G system from the 3G system, in described step 205, the business request information of sending from described calling subscriber as described MSC, and know in the call setup message, this user does not allow to switch between system, the business that then described MSC carries in the assignment message that described RNC issues in subsequent step is switched the value of cell for not allowing switching, then at this moment, the RNC of described Calling Side no longer sends Handover_Required message to network, is connected but directly set up normal the calling with called former access side.
Core net can be according to user's access zone in the foregoing description, User Priority, and the user roams type, user's SIM card type, user ARD CAMEL-Subscription-Information, user's brand, the Client-initiated business is (such as audio call, video call, the data service of low speed, data service at a high speed etc.) wait switching condition to carry out the configuration of professional switching cell, core net is switched between control system flexibly, realize the equilibrium of cell load, and then rationally utilize network better.
In addition, among above-mentioned two embodiment illustrated in figures 1 and 2, when switching type is when switching between the permission system, the described professional value of switching cell not only comprises and allows to switch, can also be according to the concrete condition of network, by described core net by operational administrative (O﹠amp; M) value with this user's configuration service switching cell is made as: permission switching or permission are switched but are not switched two types as far as possible.Described core net can be according to the importance of service request, and the business that different switching type values are set is switched cell.In calling procedure, system can selectively switch according to described professional the dissimilar of cell value of switching, owing to be prior art, therefore repeats no more.
In addition, in above-mentioned step 105 embodiment illustrated in fig. 1 and step 205 embodiment illustrated in fig. 2, described core net is before obtaining the user profile of described calling party, can also judge earlier whether supporting business switches cell for described RNC or BSC, when supporting, then described core net is carried out the follow-up described user profile step of obtaining described calling party again, otherwise does not initiate the switching between system.
Wherein, described core net judge described RNC or BSC whether the supporting business method of switching cell be specially:
If described MSC is by described O﹠amp; M configuration learns, when not starting switching based on business at the IU-CS interface, then described MSC is provided with the described professional value of cell of switching for not allowing switching;
If MSC passes through O﹠amp; M configuration learns, when not starting switching based on business at the A interface, then described MSC is provided with the described professional value of cell of switching for not allowing switching.
What above-mentioned several embodiment provided all is the method for switching between the intra-office system, the present invention also is applicable to the switching between the interoffice system, the control method of switching between system in the control method that the interoffice system is switched and the foregoing description is roughly the same, difference is, in the present embodiment, when core net is known when switching between the permission system, described core net will be attached the core net that the professional handoff request message of switching cell sends to the target office of switching, rather than give the target BS BSC of the switching of this intra-office.As shown in Figure 3, it is the flow chart of a method embodiment switching between interoffice of the present invention system, it is example that this method switches to the 2G system with interoffice from the 3G system, if core net is MSC-A, the core net of the target office of switching is the MSC-B in the 2G system, step 201 is identical to step 207 essence among this method step 301～step 307 and the above-mentioned embodiment shown in Figure 2, finishes above-mentioned steps by described MSC-A in the present embodiment, and present embodiment is further comprising the steps of afterwards:
RNS-A in the step 308:3G system requires message (Iu_Relocation_Required) to the switching that described MSC-A sends the Iu mouth, requires the switching between MSC initiation system.Wherein, the switching of described Iu mouth requires message can also be called the reconfiguration request message of Iu mouth.
Step 309: described MSC-A produces the handoff request message (A_HO_REQUEST) of the A interface that switches to the 2G system, and then determine whether initiating inter-office switchover according to the Target cell of appointment in the described Iu_Relocation_Required message, when specified Target cell was other innings sub-district, then described MSC-A switched between the initiation system of appointment office at described Target cell place according to step 310.Wherein, the determination methods that determines whether initiating inter-office switchover according to Target cell is a prior art, therefore repeats no more.
Step 310: described MSC-A is packaged in described A_HO_REQUEST message in the handoff request message (MAP_Prep_Handover_Request) of MAP interface on E interface, and described MAP_Prep_Handover_Request message is sent to the MSC-B of appointment office, ask described MSC-B to prepare the resource of switching target side.Wherein, all carry the professional cell that switches in described A_HO_REQUEST message and the described MAP_Prep_Handover_Request message, when the value of this cell and described MSC-A sent assignment message to described Calling Side RNC, the value that the business of carrying is switched cell was identical.
Step 311: described MSC-B is after receiving described MAP_Prep_Handover_Request message, to VLR-B (Visitor Location Register, VLR Visitor Location Register) sends MAP_Allocate_Handover_Number req. message, its objective is the application Handover Number, so that set up described MSC-A to the speech channel between the described MSC-B, be IAM (initial address message) and prepare.
Step 312: described MSC-B parses described A_HO_REQUEST message from described MAP_Prep_Handover_Request message, and described A_HO_REQUEST message sent to the target BS BSS-B of described switching, ask described BSS-B to prepare the Radio Resource of switching target side.
Step 313: the BSS-B of described target side after having finished Radio Resource and having prepared, after described MSC-B returns handoff request acknowledgement message (A_HO_REQUEST_ACK), execution in step 314 and follow-up interoffice from 3G to 2G switching and call out step such as connection.
Step 314: described VLR-B is after receiving the MAP_Allocate_Handover_Number req. message of described MSC-B, return MAP_Send_Handover_Number Report req. message to described MSC-B, include the Handover Number that described VLR-B distributes in this message.
Step 315: described MSC-B parses described Handover Number from described MAP_Send_Handover_Number Report req. message, described Handover Number and described A_HO_REQUEST_ACK message are configured to MAP_Prep_Handover resp. message together, and this message is sent to described MSC-A in the 3G system.At this moment, all set Radio Resource and Handover Number of described MSC-B.
Step 316: described MSC-A parses Handover Number from described MAP_Prep_Handover resp. message, sends initial address message (IAM) to described MSC-B, the speech channel between foundation and the described MSC-B.
Step 317: described MSC-B sends Handover Number release message (MAP-Send-Handover-Number Report resp.) to described VLR-B, requires described VLR-B to discharge for the Handover Number that described MSC-B distributes, and switches use to leave other users for.
Step 318: described MSC-B is to the complete message in described MSC-A return address (ACM), show and described MSC-A between speech channel set up fully.
Step 319: described MSC-A sends switching command (Iu_Relocation_Command) to described RNS-A.
Step 320: when described BSS-B has detected mobile phone access 2G system, send switching detection message (A_Handover_Detect) to described MSC-B.
Step 321: described BSS-B sends to described MSC-A with received A_Handover_Detect message by inserting processing messages (MAP_Process_Access_Signal Req.), inserts from the 2G system to inform described MSC-A mobile phone.
Step 322: when described BSS-B detects described mobile phone and successfully has been linked in the 2G system, send handoff completion message (A_Handover_Complete) to described MSC-B.
Step 323: described BSS-B sends to described MSC-A with received A_Handover_Complete message by sending end (MAP_Send_End_Signal Req.), successfully inserts from the 2G system to inform described MSC-A mobile phone.
Step 324: described MSC-A sends release command (Iu_Release_Command) to described RNS-A after receiving described MAP_Send_End_Signal Req. message, notifies described RNS-A to discharge the Radio Resource that original conversation takies.
Step 325: described RNS-A returns Release complete (Iu_Release_Complete) to described MSC-A after having discharged the original Radio Resource that takies of conversing.
Step 326: described MSC-B sends response message (ANM) and gives described MSC-A on trunk interface, and the notice switching is finished, to keep the complete of relaying signaling with described ACM message.
Step 327: behind end of conversation, described MSC-A sends speech channel release message (REL) to described MSC-B, requires to discharge the interoffice traffic resource.
Step 328: described MSC-A sends to described MSC-B and finishes signaling response (MAP_Send_End_Signal resp.), the Radio Resource of application when requiring to switch between described MSC-B delivery system.
In the foregoing description not only core net can judge whether the service request that this calling party is initiated is to switch between system according to factors such as Client-initiated types of service, make core net can control switching flexibly, realize the equilibrium of cell load from the 3G system to the 2G system.But also by core net when the MSC-B in the target office of switching sends handoff request message, business is switched cell is sent to described MSC-B together, thereby realize switching between the system of interoffice.
Need to prove, work as described MSC-A in the foregoing description and pass through O﹠amp; The M configuration learns that described MSC-A is not when the interoffice business transferring is switched cell, then in described step 310, described MSC-A does not carry the professional cell that switches in the described MAP_Prep_Handover_Request message that described MSC-B sends, at this moment, then do not initiate to switch between the system of interoffice.
In addition, work as described MSC-B in the foregoing description and pass through O﹠amp; The M configuration is learnt described MSC-B not when the startup of A interface is switched based on business, and then in described step 312, described MSC-B does not comprise the professional cell that switches in the described A_HO_REQUEST message that the target BS BSS-B of described switching sends.At this moment, target office does not initiate the switching between system.
Need to prove that calling party described in the foregoing description all is to be the detailed description that example is carried out with calling subscriber, core net described in the embodiment of the invention can also be according to called subscriber's user profile, and then judge whether the switching between the initiation system.Different with the calling subscriber is, called subscriber's user profile can send to the message that pages reply, the call confirmation message (call_conform) of MSC and be kept at the user data of the called subscriber on the described MSC and obtain from described called subscriber.And the flow and method of concrete switching deciding method and switching because of all with the foregoing description in identical, repeat no more once more.
Based on technique scheme, the embodiment of the invention also discloses in a kind of core net the network element that switches between can control system, as shown in Figure 4, described network element comprises: receiving element 401, switching type memory cell 402, user profile acquiring unit 403, switching type judging unit 404, professional cell generation unit 405, the transmitting element 406 of switching, wherein
Described switching type memory cell 402 is used to store the user profile that presets and the corresponding relation of switching type;
Described user profile acquiring unit 403 is used for obtaining from the relevant message of the call setup that received by described receiving element 401 user profile of calling party, and described user profile is informed described switching type judging unit 404;
Described switching type judging unit 404, after being used to receive described user profile, corresponding relation according to this user profile and switching type in the described switching type memory cell 402 is known, when the switching type corresponding with described user profile is when switching between the permission system, the judged result that allows to switch is informed the described professional cell generation unit 405 that switches;
The described professional cell generation unit 405 that switches, be used for after receiving the judged result that described permission is switched, generate the professional cell that switches, and by described transmitting element 406 with described professional switch cell in company with the empty port load-supporting assignment request message be sent to described calling party, and in company with sending the target side that handoff request message is sent to described switching.
Wherein, when described calling party is the calling subscriber, the message that described call setup is relevant can be specially business request information and/or call setup message, and the user profile of described business request information comprises at least: user's access zone, user's international mobile subscriber identification code IMSI.The user profile of described call setup message comprises at least: user's call business type.
Wherein, when described calling party was the called subscriber, the message that described call setup is relevant can be specially paging corresponding message and/or call confirmation message.
Wherein, described network element can be moving exchanging center MSC.
In addition, as shown in Figure 5, it is the structured flowchart of another network element embodiment of switching between can control system in the core net of the present invention.This network also comprises on the basis of said network element embodiment:
User type acquiring unit 507 is used for the message relevant according to the call setup that receives from described receiving element 401, obtains the user type of calling party from moving exchanging center MSC, and described user type is informed described switching type judging unit 404; Wherein, described user type comprises at least: information such as the CAMEL-Subscription-Information of calling party, user data.
Described switching type memory cell 402 also is used to store the corresponding relation of described user type and switching type;
Described switching type judging unit 404, after also being used to receive described user type, corresponding relation according to this user type and switching type in the described switching type memory cell 402 is known, when the switching type corresponding with described user profile is when switching between the permission system, the judged result that allows to switch is informed the described professional cell generation unit 405 that switches;
The judging unit of switching type described in the foregoing description 404 can insert the zone according to the user, User Priority, the user roams type, user IMSI type, user ARD CAMEL-Subscription-Information, the Client-initiated type of service is (such as audio call, video call, the data service of low speed, data service at a high speed etc.) judge whether the service request that this calling party is initiated is to switch between system, make the core net switching between control system flexibly, realize the equilibrium of cell load, and then more reasonably utilize network.
Based on technique scheme, the embodiment of the invention also discloses a kind of system of switching between can control system, as shown in Figure 6, described system comprises: core net 601, calling party 602, the target side of switching 603 and be arranged in described core net 601 can control system between the network element 604 that switches, wherein
Described calling party 602 makes a call to described core net 601, the network element 604 that switches between the described control system in the described core net 601, be used for obtaining the user profile of this calling party from the relevant message of call setup that described calling party 602 is sent, and judge according to described user profile whether the service request that this calling party 602 is initiated allows to switch between system, when switching between the permission system, then described network element 604 switches cell with business and is sent to described calling party 602 in company with the empty port load-supporting assignment request message, and business is switched cell is sent to described switching in company with handoff request message target side 603.
Wherein, described network element 604 comprises: receiving element 401, switching type memory cell 402, user profile acquiring unit 403, switching type judging unit 404, professional cell generation unit 405, the transmitting element 406 of switching, wherein,
Described switching type memory cell 402 is used to store the user profile that presets and the corresponding relation of switching type;
Described user profile acquiring unit 403 is used for obtaining from the relevant message of the call setup that received by described receiving element 401 user profile of calling party, and described user profile is informed described switching type judging unit 404;
Described switching type judging unit 404, after being used to receive described user profile, corresponding relation according to this user profile and switching type in the described switching type memory cell 402 is known, when the switching type corresponding with described user profile is when switching between the permission system, the judged result that allows to switch is informed the described professional cell generation unit 405 that switches;
The described professional cell generation unit 405 that switches, be used for after receiving the judged result that described permission is switched, generate the professional cell that switches, and by described transmitting element 406 with described professional switch cell in company with the empty port load-supporting assignment request message be sent to described calling party, and in company with sending the target side that handoff request message is sent to described switching.
Wherein, when described calling party is the calling subscriber, the message that described call setup is relevant can be specially business request information and/or call setup message, and the user profile of described business request information comprises at least: user's access zone, user's international mobile subscriber identification code IMSI.The user profile of described call setup message comprises at least: user's call business type.
Wherein, when described calling party was the called subscriber, the message that described call setup is relevant can be specially paging corresponding message and/or call confirmation message.
Wherein, the described network element 604 that switches between can control system can be moving exchanging center MSC.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the method for switching between a core net control system is characterized in that, comprising:
In call establishment, core net is obtained the user profile of calling party, know according to this user profile that presets and the corresponding relation of switching type, and when the switching type corresponding with described user profile is when switching between the permission system,
Then described core net is switched cell with business and is sent to described calling party in company with this empty port load-supporting assignment request message when described calling party is returned the empty port load-supporting assignment request message; And described core net is when the target side of switching sends handoff request message, business switched target side that cell is sent to described switching in company with this transmission handoff request message carry out switching between system.
2. the method for switching between control system as claimed in claim 1, it is characterized in that, the user profile that described core net is obtained calling party is specially: described core net is obtained the user profile of calling party from the business request information that receives, and the described user profile of obtaining from business request information comprises at least: user's access zone, user's international mobile subscriber identification code IMSI;
Described core net knows that according to this user profile that presets and the corresponding relation of switching type the switching type corresponding with described user profile is that the specific implementation of switching between the permission system is:
When described user is arranged in the access zone of permission system switching, or
When described user's IMSI switches for the permission system, or
The combination of above-mentioned situation, then described core net think that this switching type is to switch between the permission system.
3. the method for switching between control system as claimed in claim 1, it is characterized in that, the user profile that described core net is obtained calling party is specially: described core net is obtained the user profile of calling party from the call setup message that receives, and the described user profile of obtaining from call setup message comprises at least: user's call business type;
Described core net is obtained the user profile of calling party, according to this user profile that presets and the corresponding relation of switching type, knows that the switching type corresponding with described user profile is that the specific implementation of switching between the permission system is:
When described user's call business type correspondence be when switching between the permission system, then described core net thinks that this switching type is to switch between the permission system.
4. the method for switching between control system as claimed in claim 3 is characterized in that, described core net also can be known the switching type of described calling party according to following steps after receiving described call setup message:
The ARD CAMEL-Subscription-Information of from the CAMEL-Subscription-Information of calling party, knowing this user when described core net when only allowing to reside in current system, maybe when the priority correspondence of from the CAMEL-Subscription-Information of described calling party, knowing this user be when switching between the permission system, or
When described core net from the user data of calling party, know this user roaming type correspondence be when switching between the permission system, or
When described core net is known this user for dual-mode terminal, or
Arbitrary combination in the above-mentioned situation, then described core net think that the switching type of this calling party is to switch between the permission system.
5. the method for switching between control system as claimed in claim 1, it is characterized in that, also comprise: described core net is known from the operational administrative configuration of presetting, when the base station side of described calling party can be in the switching of A interface startup based on business, perhaps, when the base station side of described calling party can be in the switching of IU-CS interface startup based on business
Then carry out the described user profile step of obtaining calling party.
6. the method for switching between control system as claimed in claim 1 is characterized in that, the user profile that described core net is obtained calling party is specially:
When described calling party is the called subscriber, obtain the user profile of calling party page-response message that described core net is sent from the called subscriber and/or the call confirmation message.
7. the method for switching between control system as claimed in claim 1 is characterized in that, switches to the switching of intra-office from the global mobile communication gsm system to universal mobile communications UMTS system between described system, or the switching from the UMTS system to gsm system; Perhaps
Switching for interoffice from the global mobile communication gsm system to universal mobile communications UMTS system, or switching from the UMTS system to gsm system.
8. the network element that switches between can control system in the core net is characterized in that, comprising:
The switching type memory cell is used to store the user profile that presets and the corresponding relation of switching type;
The user profile acquiring unit is used at call establishment, obtains the user profile of calling party, and described user profile is informed the switching type judging unit;
Described switching type judging unit, after being used to receive described user profile, corresponding relation according to this user profile and switching type in the described switching type memory cell is known, when the switching type corresponding with described user profile is when switching between the permission system, the judged result informing business that will allow to switch switches the cell generation unit;
The described professional cell generation unit that switches, be used for after receiving the judged result that described permission is switched, generate the professional cell that switches, and the described professional cell that switches is sent to described calling party in company with the empty port load-supporting assignment request message, and with the described professional cell that switches in company with sending the target side that handoff request message is sent to described switching.
9. the network element that switches between can control system in the core net as claimed in claim 8 is characterized in that, also comprises:
The user type acquiring unit is used for obtaining from moving exchanging center MSC the user type of calling party, and described user type is informed described switching type judging unit; Wherein, described user type comprises at least: the CAMEL-Subscription-Information of calling party, user data;
Described switching type memory cell also is used to store the corresponding relation of described user type and switching type;
Described switching type judging unit, after also being used to receive described user type, corresponding relation according to this user type and switching type in the described switching type memory cell is known, when the switching type corresponding with described user profile is when switching between the permission system, the judged result that allows to switch is informed the described professional cell generation unit that switches.
10. the network element that switches between can control system in the core net as claimed in claim 8 is characterized in that described network element is a moving exchanging center MSC.
11. a system of switching between can control system comprises: core net, calling party, wherein, the described core net of described call direction makes a call, it is characterized in that, described system also comprise be arranged in described core net can control system between the network element that switches, this network element comprises:
The switching type memory cell is used to store the user profile that presets and the corresponding relation of switching type;
The user profile acquiring unit is used at call establishment, obtains the user profile of calling party, and described user profile is informed the switching type judging unit;
Described switching type judging unit, after being used to receive described user profile, corresponding relation according to this user profile and switching type in the described switching type memory cell is known, when the switching type corresponding with described user profile is when switching between the permission system, the judged result informing business that will allow to switch switches the cell generation unit;
The described professional cell generation unit that switches, be used for after receiving the judged result that described permission is switched, generate the professional cell that switches, and the described professional cell that switches is sent to described calling party in company with the empty port load-supporting assignment request message, and with described professional cell is sent to described switching in company with this transmission handoff request message the target side of switching.
12. the system of switching between can control system as claimed in claim 11, described network element is a moving exchanging center MSC.
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| CN102076043B (en) * | 2009-11-24 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of method and system realizing Incoming reorientation |
| CN101754307B (en) * | 2009-12-16 | 2014-12-31 | 中兴通讯股份有限公司 | Mobile for carrying out the inter-office switching between mobile switching center and mobile communication network |
| CN101980568B (en) * | 2010-10-26 | 2015-01-28 | 中兴通讯股份有限公司 | Method and system for realizing repositioning |
| CN102480418B (en) * | 2010-11-29 | 2015-01-14 | 中国电信股份有限公司 | Routing method for realizing video frequency intercommunication for code division multiple access (CDMA) 2000 terminal and soft exchange terminal |
| CN102695234A (en) * | 2011-03-25 | 2012-09-26 | 中兴通讯股份有限公司 | Service bearing transfer method and apparatus thereof |
| CN103188729A (en) * | 2011-12-31 | 2013-07-03 | 中兴通讯股份有限公司 | Method and device for service balance |
| WO2014161161A1 (en) * | 2013-04-02 | 2014-10-09 | 华为技术有限公司 | Method, device and system for switching different radio access networks |
| CN108347342B (en) * | 2017-01-24 | 2021-05-25 | 普天信息技术有限公司 | Method for recovering service after TMF network element restart and network element |
| CN109392030B (en) * | 2017-08-02 | 2021-12-28 | 中国移动通信有限公司研究院 | Method for switching between base stations and wireless network |
| CN109495933A (en) * | 2017-09-12 | 2019-03-19 | 中国电信股份有限公司 | Equipment of the core network and switchover policy delivery method and device |
| CN110366861B (en) * | 2018-02-09 | 2022-05-10 | 北京小米移动软件有限公司 | Method, device, system and storage medium for switching among base stations |
| CN110572860A (en) * | 2018-06-06 | 2019-12-13 | 中国电信股份有限公司 | Method for selecting access network, core network device and storage medium |
| CN110662264B (en) * | 2018-06-28 | 2022-04-19 | 中国电信股份有限公司 | Switching method, system, core network device and computer readable storage medium |
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| CN1893720A (en) * | 2005-07-08 | 2007-01-10 | 华为技术有限公司 | Method of switching-over between systems |
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