CN102075906B - Processing method of circuit switched (CS) service and network control equipment - Google Patents
Processing method of circuit switched (CS) service and network control equipment Download PDFInfo
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Abstract
The invention provides a processing method of a circuit switched (CS) service and network control equipment. The method comprises the following steps that: a first network control node receives a message during the CS service; if a terminal which corresponds to the CS service is a single-card dual-standby terminal, the first network control node sends the message during the CS service to a second network control node so as to process the control surface and the user surface of the CS service; and the first network control node is connected with the second network control node through an interface. In the embodiment of the invention, a single-card dual-standby CS service can be realized.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of to circuit switching (Circuit Switched, CS) Ye Wu processing method and net control device.
Background technology
Along with the development of mobile communication, the mobile network of multiple standard also deposits.In order to obtain the business experience of networks with different systems, the user can adopt the terminal of double-card dual-standby or the terminal of single deck tape-recorder double-mode single-standby.Dual-card dual-standby terminal has two cover systems, is attached to two networks simultaneously, standby when can realize two networks, and similar possess two mobile phones simultaneously.The terminal of single deck tape-recorder double-mode single-standby has two cover systems, but can only reside in a network at synchronization.
Tradition treats that singly the multimode terminal of system can only be attached to a network at a time point, as global system for mobile communications (Global System for Mobile communications, GSM)/TD SDMA (Time Division Synchronous Code Division Multiple Access, TD-SCDMA) dual-mode terminal, a moment can only be attached to GSM network or TD-SCDMA network.Above-mentioned single deck tape-recorder double-mode single-standby system can only reside in a network at a moment, can not reside in two networks simultaneously.Though the double-card dual-standby system can reside in two networks simultaneously, need resources such as two cover radio frequencies (RF), two cover base band (BaseBand), two cover protocol stacks.
Lack the system that a cover resource resides in two networks simultaneously in the prior art, when more lacking a cover resource and residing in two networks simultaneously to the processing scheme of CS business.
Summary of the invention
The embodiment of the invention provides a kind of processing method to the CS business and net control device, realizes overlapping resource processing to the CS business when residing in two networks simultaneously with one.
The embodiment of the invention provides a kind of processing method to the CS business, comprising:
Message when first network control node receives the CS business;
If the professional corresponding terminal of described CS is the single deck tape-recorder double-standby terminal, the message when described first network control node is professional with described CS sends to second network control node, with the chain of command that carries out described CS business and the processing of user's face;
Described first network control node is connected by interface with described second network control node.
The embodiment of the invention provides a kind of net control device, comprising:
Receiver module, the message when being used for receiving circuit exchange CS business;
Processing module, if being used for the professional corresponding terminal of described CS is the single deck tape-recorder double-standby terminal, message when described CS is professional sends to second network control node, with the chain of command that carries out the CS business and the processing of user's face, described first network control node is connected by interface with described second network control node.
As shown from the above technical solution, the embodiment of the invention is by the interface between first network node and second network node, message in the time of can between first network node and second network node, transmitting the CS business, to carry out the CS business, and then the CS domain core net that can be implemented in the network that the speech business initiated in the network of the first network node correspondence can be corresponding with second network node communicates by letter, and realizes that terminal bides one's time to the processing of CS business in that single deck tape-recorder is two.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 be the embodiment of the invention based on the communication system architecture schematic diagram;
Fig. 2 is the method flow schematic diagram of first embodiment of the invention;
Fig. 3 is the method flow schematic diagram of second embodiment of the invention;
Fig. 4 is the method flow schematic diagram of third embodiment of the invention;
Fig. 5 is the method flow signal of fourth embodiment of the invention;
Fig. 6 is the method flow schematic diagram of fifth embodiment of the invention;
Fig. 7 is the method flow schematic diagram of sixth embodiment of the invention;
Fig. 8 is the system configuration schematic diagram of the correspondence of sixth embodiment of the invention;
Fig. 9 is the method flow schematic diagram of seventh embodiment of the invention;
Figure 10 is the device structure schematic diagram of eighth embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 be the embodiment of the invention based on the communication system architecture schematic diagram, present embodiment is example with GSM network and TD-SCDMA (hereinafter to be referred as TD) network, certainly, also can be GSM network and other universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS), for example, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) network, also can be GSM network and Long Term Evolution (Long Term Evolution, LTE) network.Wherein, for the GSM network, corresponding network control node be base station controller (Base Station Controller, BSC); For the UMTS network, corresponding network control node be radio network controller (Radio Network Controller, RNC), the node of corresponding CS domain core net be mobile switching centre (Mobile Switch Center, MSC); For the LTE network, corresponding network control node is evolution base station (eNB), the node of corresponding CS domain core net be mobile management entity (Mobile Management Entity, MME).In the present embodiment, comprise single deck tape-recorder double-standby terminal 11, base station (NodeB) 12, base station transmitting-receiving station (Base Transceiver Station, BTS) 13, radio network controller (Radio Network Controller, RNC) 14, BSC 15, (the General Packet Radio Service of service universal packet wireless business affair system, GPRS) support node (Serving GPRS Support Node, SGSN) 16 and MSC 17.Communicate by letter by newly-increased interface (as controller interface Iur-g) between RNC 14 and the BSC 15, RNC and BSC are at the adaption function of Iur-g interface realization A interface and Iu-cs interface.Present embodiment independently is set to example respectively with RNC and BSC, is understandable that, also can substitute RNC and BSC with a dual mode controller, and this dual mode controller possesses the function of RNC and BSC, and controller interface is as the dual mode controller internal interface.
Under this system architecture, the single deck tape-recorder double-standby terminal is attached to GSM and TD simultaneously, realizes dual-mode dual-standby mechanism, can carry out different business at heterogeneous networks simultaneously, and dual stack is shared different work, and for example, shown in link 1, data service is carried in the TD system; Shown in link 2, speech business is carried in the gsm system.MSC communicates by letter by RNC with BSC, and realization CS territory is unified with respect to core net to be the Iu-cs interface; Carry out the processing of chain of command and user's face at Iur-g interface or dual mode controller internal interface.
Based on above-mentioned system architecture, can realize the CS business.
Fig. 2 is the method flow schematic diagram of first embodiment of the invention, comprising:
Step 21: the message when first network control node receives the CS business;
For example, when calling service, first network control node can be BSC, and the message the when CS of this moment is professional is the business request information that terminal sends; When called service, first network control node can be RNC, and the message the when CS of this moment is professional is the beep-page message that MSC sends; In addition, when called service, if with BSC as first network control node, the message when then the CS of this moment is professional is the page-response message that terminal sends.
Step 22: if the professional corresponding terminal of described CS is the single deck tape-recorder double-standby terminal, the message when described first network control node is professional with described CS sends to second network control node, with the chain of command that carries out the CS business and the processing of user's face; Wherein, described first network control node is connected by interface with described second network control node.
Present embodiment is by the interface between first network node and second network node, message in the time of can between first network node and second network node, transmitting the CS business, to carry out the CS business, and then can be implemented in CS domain core net communication in the network (as UMTS network or LTE network) that the speech business initiated in the network (as GSM) of the first network control node correspondence can be corresponding with second network control node, realize that terminal bides one's time to the processing of CS business in that single deck tape-recorder is two.
CS business in the embodiment of the invention comprises calling service and called service, further, also comprises the switching flow that takes place in the calling and called communication process.Be example with system shown in Figure 1 below, describe respectively.
Fig. 3 is the method flow schematic diagram of second embodiment of the invention, and present embodiment is example with the calling service, and referring to Fig. 3, present embodiment comprises:
Step 31: first network control node is received in the business request information of the calling terminal transmission that makes a call in first network system;
Based on system shown in Figure 1, first network control node is BSC, and first network system is GSM.Second network control node is RNC, and second network system is TD-SCDMA.Can be referring to the particular content of Fig. 1 for other system.
Wherein, when calling terminal is the single deck tape-recorder double-standby terminal, can carry single deck tape-recorder double-standby terminal sign in this business request information, so that first network control node determines that according to this single deck tape-recorder double-standby terminal sign calling terminal is the single deck tape-recorder double-standby terminal.Perhaps, carry the identification information of calling terminal in this business request information, for example, IMSI International Mobile Subscriber Identity (Internet Mobile Subscriber Identity, IMSI), Temporary Mobile Subscriber Identity (Temporary Mobile Subscriber Identity, TMSI) or international mobile device sign indicating number (International Mobile Equipment Identity, IMEI), so that BSC determines according to the TMSI/IMSI/IMEI that this TMSI/IMSI/IMEI reaches the single deck tape-recorder double-standby terminal that obtains in advance whether calling terminal is the single deck tape-recorder double-standby terminal.
Step 32: first network control node judges whether described calling terminal is the single deck tape-recorder double-standby terminal.
Wherein, if carry single deck tape-recorder double-standby terminal sign in the business request information that this calling terminal sends, then can judge this calling terminal is the single deck tape-recorder double-standby terminal.Wherein, single deck tape-recorder double-standby terminal sign is to show that corresponding terminal is the single deck tape-recorder double-standby terminal, can use idle bit position or other cells among existing terminal class mark 1 (the Mobile StationClassmark 1) to carry.
Perhaps, first network control node also can judge whether calling terminal is the single deck tape-recorder double-standby terminal according to the TMSI/IMSI/IMEI that carries in the business request information.
When adopting TMSI/IMSI/IMEI to judge, can pre-configured tabulation in BSC, preserve single deck tape-recorder double-standby terminal and corresponding IMSI/IMSI/IMEI in this tabulation.Perhaps, BSC obtains the TMSI/IMSI/IMEI of single deck tape-recorder double-standby terminal in advance.Afterwards, judge by comparison whether terminal is the single deck tape-recorder double-standby terminal.
BSC can (Location Area Update LAU) obtains the TMSI/IMSI/IMEI of single deck tape-recorder double-standby terminal in the process at location area updating.In LAU, the single deck tape-recorder double-standby terminal carries single deck tape-recorder double-standby terminal sign and corresponding TMSI/IMSI/IMEI in sending to the LAU Request message of BSC, BSC can record the TMSI/IMSI/IMEI of the terminal of carrying single deck tape-recorder double-standby terminal sign, identification information as the single deck tape-recorder double-standby terminal that obtains, wherein, single deck tape-recorder double-standby terminal sign is to show that corresponding terminal is the single deck tape-recorder double-standby terminal, can use idle bit position or other cells among existing terminal class mark 1 (the Mobile Station Classmark 1) to carry.
When LAU registers, for ordinary terminal be by the A interface between BSC and the MSC to the GSM registers kernel network, and the single deck tape-recorder double-standby terminal need be by the Iur-g interface between BSC and the RNC to the UMTS registers kernel network.The single deck tape-recorder double-standby terminal sign that BSC carries in can the LAU Request message according to terminal to report or determine that according to the TMSI/IMSI of the single deck tape-recorder double-standby terminal that obtains corresponding terminal is the single deck tape-recorder double-standby terminal after, with LAU Request message by the Iur-g interface route to RNC.
In the embodiment of the invention, the single deck tape-recorder double-standby terminal is attached to gsm system and TD system simultaneously, still, when initiating audio call, can make a call in gsm system by regulation single deck tape-recorder double-standby terminal, is beneficial to the voice advantage of gsm system.And when initiating data service, can stipulate that the single deck tape-recorder double-standby terminal initiates in the TD-SCDMA system, be beneficial to the data edge of TD-SCDMA system.
When terminal is initiated caller at gsm system, can send service request (CM ServiceRequest) message to BSC, wherein carry the IMSI/TMSI of this terminal, afterwards, the IMSI/TMSI of the single deck tape-recorder double-standby terminal of record and the IMSI/TMSI of current initiation calling terminal before BSC can compare judge and initiate whether calling terminal is the single deck tape-recorder double-standby terminal.Also can in service request (CM ServiceRequest) message, carry single deck tape-recorder double-standby terminal sign, this single deck tape-recorder double-standby terminal sign shows that corresponding terminal is the single deck tape-recorder double-standby terminal, BSC identifies according to this, judges to initiate whether calling terminal is the single deck tape-recorder double-standby terminal.
Step 33: if described calling terminal is the single deck tape-recorder double-standby terminal, first network control node sends to second network control node with this business request information by first network control node, in order to carry out the processing of chain of command and user's face of CS calling service by first network control node and second network control node.
Based on the described system of Fig. 1, be the single deck tape-recorder double-standby terminal if initiate calling terminal, then BSC sets up Iur-g interface signaling link, by the Iur-g interface calling service request is sent to RNC.Afterwards, RNC carries out the forwarding of follow-up flow processing and signaling, and for example, RNC sends to the calling service request message by the Iu interface MSC in the CS domain core net of TD network, and to carry out paging called to find; If MSC paging success, beginning ring (Alerting), RNC transmits the relevant signaling of ring; If MSC initiates to set up the Iu user plane bearer in call establishment, in setting up Iu user plane bearer process or after finishing, RNC need initiate to set up the Iur-g user plane bearer, is user's face path of this call setup voice call.Concrete calling service flow process can be referring to next embodiment.
Be understandable that when calling terminal was not the single deck tape-recorder double-standby terminal, BSC then carried out the CS business by the A interface to MSC after receiving business request information.
Present embodiment can send to MSC with the relevant signaling of calling sent by calling terminal that resides in the GSM network by the interface between BSC and the RNC, realizes the calling service in CS territory.
Fig. 4 is the method flow schematic diagram of third embodiment of the invention, and present embodiment is example with the calling service, comprising:
Step 401: terminal is initiated caller in gsm system, sends service request (CMService Request) message to BSC, wherein carries the TMSI/IMSI/IMEI of this terminal, perhaps, carries and shows that this terminal is the single deck tape-recorder double-standby terminal sign of single deck tape-recorder double-standby terminal.
Step 402:BSC judges whether the initiation calling terminal is the single deck tape-recorder double-standby terminal, when being judged as the single deck tape-recorder double-standby terminal, BSC is the chain of command link of this terminal to apply Iur-g interface, as SCCP (Signalling Connection Control Part, SCCP) link, and send the service request of terminal to RNC; RNC is the chain of command link (as the SCCP link) of this terminal to apply Iu interface, and transmits the service request of terminal to MSC;
Wherein, the IMSI/TMSI of the single deck tape-recorder double-standby terminal of record and the IMSI/TMSI of current initiation calling terminal before BSC can compare, or identify the single deck tape-recorder double-standby terminal sign of carrying, judge and initiate whether calling terminal is the single deck tape-recorder double-standby terminal.
Step 403:MSC returns and connect to confirm (Connect Confirm, CC) message, and RNC transmits CC message to BSC to RNC.
Step 404:MSC sends professional (the CM Service Accepted) message of accepting and gives terminal, and this CM Service Accepted message sends to BSC by Iu interface, Iur-g interface, and BSC is transmitted to terminal with this message on eating dishes without rice or wine;
Step 405: terminal is eating dishes without rice or wine to send foundation (Setup) message, and this setup message has comprised network side and handled the required full detail of this calling, comprises called number.Equally, this message sends to MSC by Iur-g interface, Iu interface;
Step 406:MSC sends to call out to terminal and carries out (Call Proceeding) message, is used to indicate calling just processed, and enters mobile caller handler flow process.
Signalling interactive process between above-mentioned terminal and MSC is roughly with the existing call flow process, with existing different be to need BSC and RNC to carry out the adaptive and transfer of signaling for this single deck tape-recorder double-standby terminal at the Iur-g interface.
Step 407:MSC sends load-bearing allocation request (RAB ASSIGNMENTREQUEST) message to RNC.
Step 408:RNC returns load-bearing allocation response (RAB ASSIGNMENTRESPONSE) message to MSC.
This step 407-408 is be used to setting up Iu User Plane carrying, as asynchronous transfer mode (Asynchronous Transfer Mode, ATM) or Internet Protocol (Internet Protocol, IP) user's face link.
Step 409:RNC sends Iur-g interface assignment request (Iur-g ASSIGNMENTREQUEST) message to BSC.
Step 410:BSC be the terminal distribution Traffic Channel (Traffic Channel, TCH).
Step 411:BSC returns Iur-g interface assignment response (Iur-g ASSIGNMENTRESPONSE) message to RNC.
This step 409-411 is be used to setting up the carrying of Iur-g interface user plane (as IP user's face link) and the TCH channel of eating dishes without rice or wine.
Step 412:MSC sends ring (Alerting) message to terminal, and terminal is heard ring-back tone.
Step 413:MSC send to connect (Connect) message to terminal, is used for informing that terminal passes through the connection of network and set up, called call accepted;
Step 414: terminal is replied to connect to MSC and is confirmed (Connect Acknowledge) message, confirms to accept conversation;
The terminal of step 412～414 and the signaling process between MSC just need RNC and BSC to carry out the adaptive and transfer of signaling for this single deck tape-recorder double-standby terminal at the Iur-g interface with normal call flow.The adaptive corresponding relation of signaling can be referring to the table 1 shown in following.
Step 415: terminal and the called voice call process that enters.
In the present embodiment, Iur-g interfaces need process user face and chain of command.For user's face, if the encoding and decoding speech difference that the voice call both sides use, need Iur-g insert encoding and decoding conversion and Rate Adapter Unit (Transcoder and Rate Adapter Unit, TRAU), to carry out encoding and decoding conversion.Chain of command is mainly called out control, and (Call Control, CC) relevant signaling is adaptive, referring to table 1.
Be understandable that can be in step 407～408 carry out step 409～411, also can carry out after finish step 407～408.Step 409～411 and step 407～408 can be carried out after step 412.
Present embodiment can be realized the caller CS business of single deck tape-recorder double-standby terminal and core net by the transfer of BSC and RNC.
Fig. 5 is the method flow schematic diagram of fourth embodiment of the invention, and present embodiment is example with the called service.Referring to Fig. 5, present embodiment comprises:
Step 51: first network control node receives the beep-page message that the CS domain core net sends, and carries the positional information of terminal called and/or the identification information of terminal called in the described beep-page message.
Based on system shown in Figure 1, in the present embodiment, first network control node is RNC, and the CS domain core net is specially MSC, and RNC receives the beep-page message that is sent by MSC.
Positional information can show which system terminal called resides in.
The identification information of terminal can be IMSI, TMSI or IMEI.
Step 52: first network control node judges according to the identification information of positional information and/or the terminal of described terminal called whether described terminal called is the single deck tape-recorder double-standby terminal.
Wherein, can carry the positional information of terminal called in the beep-page message.Suppose that (Location Area Identifier LAI) is LAI-1, and a Location Area Identification of gsm system configuration is LAI-2 for a Location Area Identification of TD-SCDMA system configuration.The single deck tape-recorder double-standby terminal is attached to the LAI-2 of GSM, the executing location district upgrades (LAU) flow process on LAI-2, the single deck tape-recorder double-standby terminal carries LAI-2 in the LAU Request message that sends by GSM, BSC intercepts and captures this message and judges whether is the single deck tape-recorder double-standby terminal, if, then can carry LAI-2 in the registration process by RNC to registers kernel network.The LAI-2 that RNC can adopt the method for virtual map will belong to gsm system is mapped as a virtual LAI-3, revise positional information in the LAU Request message and be LAI-3 and send to MSC by the Iu mouth, this LAI-3 not in the lane place of GSM or TD-SCDMA network arbitrarily configuration use; Or RNC can adopt the method for fixed route that LAI-2 is designated the Iur-g attribute, do not revise the positional information in the LAURequest message and sends to MSC by the Iu mouth, and follow-up signaling process need be routed to Iur-g.Need to have the correspondence configuration of LAI-2 or LAI-3 on the MSC, can carry out normal calling and called flow process.
Afterwards, when called paging, RNC can judge whether terminal called resides in the gsm system according to the positional information of carrying in the beep-page message according to the method for virtual map or the method for fixed route, if reside in the gsm system, then this terminal called is the single deck tape-recorder double-standby terminal, for example, and during the method for virtual map, when the positional information of carrying is LAI-3, then judge and reside in the gsm system, when the positional information of carrying is LAI-1, then judges and reside in the TD-SCDMA system; During the method for fixed route, if LAI-2, then judge and reside in the gsm system.
Similarly, whether terminal called was the single deck tape-recorder double-standby terminal as described in RNC also can judge according to the identification information (as IMSI/TMSI/IMEI) of terminal.As, the LAU request that the interface of RNC preservation between BSC and RNC comes or the identification information of the terminal other message, the terminal iidentification that carries the message that the interface between RNC and BSC is next exists in the single deck tape-recorder double-standby terminal identification list.If it is the single deck tape-recorder double-standby terminal that the identification information of the terminal in the beep-page message in single deck tape-recorder double-standby terminal identification list, is then judged terminal called.Certainly, also can adopt pre-configured mode, it is the pre-configured identification information that belongs to the single deck tape-recorder double-standby terminal, afterwards, in receiving beep-page message, can compare the identification information of the terminal called that carries in this beep-page message and the identification information of pre-configured single deck tape-recorder double-standby terminal and judge whether terminal called is the single deck tape-recorder double-standby terminal.
Step 53: if described terminal called is the single deck tape-recorder double-standby terminal, first network control node sends to second network control node with described beep-page message by the interface between first network control node and second network control node, in order to carry out the processing of chain of command and user's face of CS called service by first network control node and second network control node.
Based on the system of Fig. 1, when terminal called was the single deck tape-recorder double-standby terminal, RNC sent to BSC by the Iur-g interface with called paging, sent to corresponding terminal by BSC according to the IMSI/TMSI/IMEI in the called paging afterwards.
Further, when terminal called sends the called paging response to BSC, be similar to calling service, BSC can judge whether the terminal of response is the single deck tape-recorder double-standby terminal according to IMSI/TMSI/IMEI or the single deck tape-recorder double-standby terminal sign of terminal, when being the single deck tape-recorder double-standby terminal, the called paging response is sent to RNC by the Iur-g interface, be transmitted to MSC by RNC by the Iu interface again, carry out the subsequent voice calls flow process.The called service flow process can be referring to next embodiment particularly.Wherein single deck tape-recorder double-standby terminal sign can use idle bit position or other cells of the terminal class mark 2 (Mobile Station Classmark 2) of page response to carry.
Present embodiment can send to the single deck tape-recorder double-standby terminal with the relevant signaling of called calling from core net by the interface between first network control node and second network control node, realizes the called service in CS territory.
Fig. 6 is the method flow schematic diagram of fifth embodiment of the invention, and present embodiment is example with the called service:
Step 601:MSC paging resides in the single deck tape-recorder double-standby terminal of GSM, RNC is according to the Location Area Identification (LAI) in the beep-page message (Paging), beep-page message is routed to BSC, goes back the carried terminal sign in this beep-page message, for example the IMSI/TMSI/IMEI of terminal called;
Step 602:BSC is eating dishes without rice or wine to send paging request (Paging Request) message;
Step 603: terminal is replied page response (Paging Response) message;
Terminal can be carried single deck tape-recorder double-standby terminal sign in page response;
Step 604:BSC is transmitted to RNC with this page-response message by the Iur-g interface, and RNC sends to MSC;
The IMSI/TMSI/IMEI of the terminal of the IMSI/TMSI of the single deck tape-recorder double-standby terminal of record and current page-response message before BSC can compare, or identify the single deck tape-recorder double-standby terminal sign of carrying, judge whether the terminal of page response is the single deck tape-recorder double-standby terminal.When being judged as the single deck tape-recorder double-standby terminal, BSC is the chain of command link (as the SCCP link) of this terminal to apply Iur-g interface, and sends the page-response message of terminal to RNC; RNC is the chain of command link (as the SCCP link) of this terminal to apply Iu interface, and transmits the page response of terminal to MSC;
Step 605:MSC returns to connect to RNC and confirms that (same, RNC transmits CC (Connect Confirm) message to BSC for Connect Confirm, CC) message;
Step 606:MSC sends professional (the CM Service Accepted) message of accepting and gives terminal, and this CM Service Accepted message sends to BSC by Iu interface, Iur-g interface, and BSC is transmitted to terminal with this message on eating dishes without rice or wine.
Step 607:MSC sends and sets up (Setup) message, and this message has comprised network side and handled the required full detail of this calling, comprises calling number.Equally, this message sends to terminal by Iur-g mouth, Iu mouth.
Step 608: terminal sends to call out confirms (Call Confirmed) message, is used to indicate calling just processed, and enters the Mobile terminating call handling process.
Signalling interactive process between above-mentioned MS and MSC is roughly with the existing call flow process, with existing different be to need BSC and RNC to carry out the adaptive and transfer of signaling for this single deck tape-recorder double-standby terminal at the Iur-g interface.
Step 609:MSC sends load-bearing allocation request (RAB ASSIGNMENTREQUEST) message to RNC.
Step 610:RNC returns load-bearing allocation response (RAB ASSIGNMENTRESPONSE) message to MSC.
This step 609-610 is be used to setting up the Iu User Plane carrying, as ATM or IP user's face link.
Step 611:RNC sends Iur-g interface assignment request (Iur-g ASSIGNMENTREQUEST) message to BSC.
Step 612:BSC is MS distribution T CH channel.
Step 613:BSC returns Iur-g interface assignment response (Iur-g ASSIGNMENTRESPONSER) message to RNC.
This step 611-613 is be used to setting up the carrying of Iur-g interface user plane (as IP user's face link) and the TCH channel of eating dishes without rice or wine.
Step 614: terminal sends ring (Alerting) message by BSC and RNC to MSC, and calling terminal is heard ring-back tone.
Step 615: when the terminal call accepted, send to connect (Connect) message to MSC, be used for informing that the connection that calling terminal passes through network sets up called call accepted;
Step 616:MSC replys to connect to terminal called and confirms (Connect Acknowledge) message, confirms to accept conversation;
Step 617: terminal and caller enter the voice call process.
In the present embodiment, Iur-g interfaces need process user face and chain of command.For user's face, if the encoding and decoding speech difference that the voice call both sides use, (Transcoder and Rate Adapter Unit TRAU), carries out encoding and decoding conversion need to insert encoding and decoding conversion and Rate Adapter Unit at Iur-g.Chain of command is mainly called out control, and (Call Control, CC) relevant signaling is adaptive, referring to table 1.
Be understandable that can be in step 609～610 carry out step 611～613, also can carry out after finish step 609～610.Step 611～613 and step 611～613 can be carried out after step 614.
Present embodiment can be realized the called CS business of single deck tape-recorder double-standby terminal and core net by the transfer of BSC and RNC.
Having described CS calling service and CS called service above respectively, is also may switch in the CS business, wherein switches can go out the BSC switching respectively and go into BSC to switch.Be described respectively below.
Fig. 7 is the method flow schematic diagram of sixth embodiment of the invention, and present embodiment switches to example to go out BSC.
Fig. 8 is the system configuration schematic diagram of the correspondence of sixth embodiment of the invention, and referring to Fig. 8, present embodiment switches to example to go out BSC, and the BSC before switching is BSC-1, corresponding BTS-1, and BSC-1 is connected by the Iur-g interface with RNC; BSC after the switching is BSC-2, corresponding BTS-2, and BSC-2 is connected by the A interface with MSC.After the switching, switch to link 82 by link 81.
Referring to Fig. 7, present embodiment comprises:
Step 701: terminal is carried out CS and is called out under BSC-1/RNC/CN.Need to carry out to stride between BSC to switch when BSC-1 judges, then initiate switching flow, send switching and require message to RNC.As in the carrying of the Iur-g of current calling chain of command, BSC-1 sends Handover Required message to RNC, and message is carried cell-of-origin sign, Target Cell Identifier, switch reasons etc.;
After step 702:RNC received this switching, it was adaptive to carry out message, send reorientation require (RelocationRequired) message to give core net (Core Network CN), carries cell-of-origin sign, Target Cell Identifier, switch reasons;
Step 703:CN judgement is the switching to another BSC-2, sends handover request to BSC-2, asks to be this handoff reservation resource.As send handover request (Handover Request) message, carry cell-of-origin sign, Target Cell Identifier, MS class mark (Classmark), required channel type etc.
Step 704:BSC-2 finishes channel allocation, and the notice core net is finished switching arranged resources.As send Handover Request Acknowledge (Handover Request Acknowledge) message, and carry switching command message in this message, show that local terminal is finished switch to prepare, and send to CN with switching the relevant information of institute's Resources allocation with this.This step is set up A mouth user face link simultaneously.
After step 705:CN receives Handover Request Acknowledge, response RNC, notice is finished to switch and is prepared.As sending reorientation order (Relocation Command) message response RelocationRequired message, this message is carried switching command message;
Step 706:RNC notice BSC-1 switching is ready to complete, and the response switching requires message.As sending Iur-g switching confirmation request (Handover Required Acknowledge) message response HandoverRequired, this message is carried switching command message.
Step 707:BSC-1 sends switching command to terminal, requires terminal to carry out switching and is linked into new channel.As send switching command (Handover Command) message, carry information such as cell ID, channel type, switching reference in the message.
Step 708: terminal is carried out and is switched in the access of new residential quarter, finishes handoff procedure.Send switching as terminal and insert (Handover Access) message to BSC-2, informing network switches to be finished.
After step 709:BSC-2 receives Handover Access message, send physical message (Physical Information) message to terminal.
After step 710:BSC-2 receives Handover Access message, send change detection (Handover Detect) message to CN.
For step 708-710 can also be:
Step 711: terminal sends to switch to BSC-2 finishes (Handover Complete) message.
After step 712:BSC-2 receives Handover Complete message, send HandoverComplete message to CN.
Core net is transferred to new cell side with user's face of audio call after receiving Handover Detect and/or Handover Complete message, and initiates to discharge the resource on RNC, the BSC-1, finishes to switch.
After switching was finished, terminal was carried out business by the A mouth under BSC-2, no longer pass through the Iur-g interface.
Fig. 9 is the method flow schematic diagram of seventh embodiment of the invention, and it is example that present embodiment is gone into BSC with switching.Referring to Fig. 9, present embodiment comprises:
Step 901:MSC carries out switching preparation process, and this switching can be come from GSM or the switching of TD-SCDMA network.MSC thinks that the lane place at the Target cell place of switching belongs to RNC.
Step 902:MSC sends handover request to RNC, asks to be this handoff reservation resource.As send re-positioning request (Relocation Request) message, carry cell-of-origin sign, Target Cell Identifier, MS class mark (Classmark), required channel type etc.
Step 903:RNC judges that according to the lane place at Target cell place the Target cell of this switching is the GSM residential quarter, then this handover request is transmitted to corresponding BSC.As sending handover request (Handover Request) message by the Iur-g interface, carry cell-of-origin sign, Target Cell Identifier, MS class mark (Classmark), required channel type etc.
Step 904:BSC finishes channel allocation, and notice RNC finishes switching arranged resources.As send Handover Request Acknowledge (Handover Request Acknowledge) message, and carry switching command message in this message, show that local terminal is finished switch to prepare, and send to RNC with switching the relevant information of institute's Resources allocation with this.This step is set up Iur-g mouth user face simultaneously, is used for switching the back voice bearer.
Step 905:RNC notice MSC switching is ready to complete the response handover request.As sending reorientation order (Relocation Command) message response Relocation Request, this message is carried switching command message;
Step 906: switching the initiation side, network issues switching command to terminal.After terminal was received switching command, terminal was carried out and is switched in the access of new residential quarter, finishes handoff procedure.
Step 907: terminal sends to switch to BSC and inserts (Handover Access) message, and informing network switches to be finished.
After step 908:BSC receives Handover Access, send Physical Information message to terminal.
After step 909:BSC receives Handover Access, send Handover Detect message to RNC.
Step 910:RNC sends Relocation Detect message to MSC.
Step 907-910 can also be:
Step 911: terminal sends Handover Complete message to BSC.
Step 912:BSC sends Handover Complete message to RNC.
Step 913:RNC sends Relocation Complete message to MSC.
Core net is transferred to new cell side with user's face of audio call after receiving Relocation Detect and/or Relocation Complete message, and initiates the resource of source of release side, finishes to switch.
Present embodiment can be used as terminal and switches to communicating by letter still by the example of RNC by the Iu interface bearing of terminal and core net behind the GSM residential quarter under the different BSC.
In order to realize that conveniently on the Iur-g interface, in the various flow processs, BSC issues the message of RNC, can send according to the form of original A interface message, RNC issues the message of BSC, can send according to the form of original A interface message.Thereby in the RNC side, the message on needs realization A interface and the Iu-cs mouth is mated and is changed, and guarantees that operation flow is normal.The match messages of some flow processs and conversion are referring to table 1.
Table 1
Figure 10 is the device structure schematic diagram of eighth embodiment of the invention, comprises receiver module 101 and processing module 102; Message when receiver module 101 is used for receiving the CS business; Professional corresponding terminal is the single deck tape-recorder double-standby terminal if processing module 102 is used for described CS, message when described CS is professional sends to second network control node, with the chain of command that carries out the CS business and the processing of user's face, described first network control node is connected by interface with described second network control node.
Wherein, this equipment can be BSC, at this moment, and the receiver module 101 concrete business request information that are used for the receiving terminal transmission, perhaps, the page-response message that receiving terminal sends.The BSC of this moment can further include: judge module, if judge module is used for described business request information or page-response message is carried single deck tape-recorder double-standby terminal sign, perhaps, the identification information of the terminal of carrying in described business request information or the described page-response message belongs to the identification information that belongs to the single deck tape-recorder double-standby terminal that obtains in advance, and judging the professional corresponding terminal of described CS is the single deck tape-recorder double-standby terminal.
Perhaps, this equipment is RNC or eNB, at this moment, and the receiver module 101 concrete beep-page messages that are used for receiving the transmission of CS domain core net.RNC or the eNB of this moment can further include: judge module, if judge module is used for the corresponding global system for mobile communications of positional information of the terminal called that described beep-page message carries, and/or, the identification information of the terminal called that carries in the described beep-page message belongs to the identification information of single deck tape-recorder double-standby terminal, and it is the single deck tape-recorder double-standby terminal that described first network control node is judged described terminal called.Particularly, judge module specifically is used for the positional information corresponding relation that basis is preserved in advance, if the corresponding gsm system of the positional information of described terminal called, then described terminal called is the single deck tape-recorder double-standby terminal, and/or, according to the identification information corresponding relation of the terminal of preserving in advance, if the identification information of described terminal called belongs to the identification information that belongs to the single deck tape-recorder double-standby terminal that obtains in advance, then described terminal called is the single deck tape-recorder double-standby terminal.
Present embodiment can also comprise acquisition module, acquisition module is used for obtaining in advance the identification information that belongs to the single deck tape-recorder double-standby terminal, and described acquisition module specifically is used for obtaining in the lane place renewal process Temporary Mobile Subscriber Identity TMSI, IMSI International Mobile Subscriber Identity or the international mobile device sign indicating number IMEI of single deck tape-recorder double-standby terminal; Perhaps, pre-configured TMSI, IMSI or the IMEI that belongs to the single deck tape-recorder double-standby terminal.
Present embodiment can also comprise:
The switching command sending module, be used for sending switching to described second network control node and require message, so that by the interface between described first network control node and described second network control node, execution CS switches in the territory, the CS business is switched to described first network control node belong on another network control node of same network.
Present embodiment can also comprise:
The switching command receiver module, be used for receiving the handover request message that described second network control node sends, so that by the interface between first network control node and second network control node, carry out the CS territory and switch, the CS business is switched on described first network control node.
Present embodiment is by the interface between first network node and second network node, message in the time of can between first network node and second network node, transmitting the CS business, to carry out the CS business, and then the CS domain core net that can be implemented in the network that the speech business initiated in the network of the first network control node correspondence can be corresponding with second network control node communicates by letter, and realizes that terminal bides one's time to the processing of CS business in that single deck tape-recorder is two.
Be understandable that the reference mutually of the correlated characteristic in said method and the equipment.In addition, " first " in above-described embodiment, " second " etc. are for each embodiment of differentiation, and do not represent the quality of each embodiment.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the processing method to the circuit switching (CS) business is characterized in that, comprising:
Message when first network control node receives the CS business;
If the professional corresponding terminal of described CS is the single deck tape-recorder double-standby terminal, the message when described first network control node is professional with described CS sends to second network control node, with the chain of command that carries out described CS business and the processing of user's face;
Described first network control node is connected by interface with described second network control node.
2. method according to claim 1, it is characterized in that, message when described first network control node receives the CS business, comprise: the business request information that the described first network control node receiving terminal sends, perhaps, receive the beep-page message that the CS domain core net sends, perhaps, the page-response message that receiving terminal sends;
Described method also comprises:
If carry single deck tape-recorder double-standby terminal sign in described business request information or the described page-response message, perhaps, the identification information of the terminal of carrying in described business request information or the described page-response message belongs to the identification information of the single deck tape-recorder double-standby terminal that obtains in advance, and it is the single deck tape-recorder double-standby terminal that described first network control node is judged the professional corresponding terminal of described CS;
If the corresponding global system for mobile communications GSM of the positional information of the terminal called that carries in the described beep-page message, and/or, the identification information of the terminal called that carries in the described beep-page message belongs to the identification information of the single deck tape-recorder double-standby terminal that obtains in advance, and it is the single deck tape-recorder double-standby terminal that described first network control node is judged described terminal called.
3. method according to claim 2 is characterized in that, also comprises: the identification information that obtains the single deck tape-recorder double-standby terminal in advance;
The described identification information that obtains the single deck tape-recorder double-standby terminal in advance comprises: Temporary Mobile Subscriber Identity TMSI, the IMSI International Mobile Subscriber Identity IMSI or the international mobile device sign indicating number IMEI that obtain the single deck tape-recorder double-standby terminal in the renewal process of lane place; Perhaps, pre-configured TMSI, IMSI or the IMEI that belongs to the single deck tape-recorder double-standby terminal.
4. method according to claim 1 is characterized in that, also comprises:
Described first network control node sends to switch to described second network control node and requires message, so that by the interface between described first network control node and described second network control node, execution CS switches in the territory, the CS business is switched to described first network control node belong on another network control node of same network.
5. method according to claim 1 is characterized in that, also comprises:
Described first network control node receives the handover request message that described second network control node sends, so that by the interface between first network control node and second network control node, carry out the CS territory and switch, the CS business is switched on described first network control node.
6. net control device, described net control device is first network control node, it is characterized in that, comprising:
Receiver module, the message when being used for receiving circuit exchange CS business;
Processing module, if being used for the professional corresponding terminal of described CS is the single deck tape-recorder double-standby terminal, message when described CS is professional sends to second network control node, with the chain of command that carries out the CS business and the processing of user's face, described first network control node is connected by interface with described second network control node.
7. equipment according to claim 6 is characterized in that,
Described receiver module specifically is used for the business request information that receiving terminal sends, and perhaps, receives the beep-page message that the CS domain core net sends, perhaps, and the page-response message that receiving terminal sends;
Described equipment also comprises: judge module, if described judge module is used for described business request information or page-response message is carried single deck tape-recorder double-standby terminal sign, perhaps, the identification information of the terminal of carrying in described business request information or the described page-response message belongs to the identification information of the single deck tape-recorder double-standby terminal that obtains in advance, and judging the professional corresponding terminal of described CS is the single deck tape-recorder double-standby terminal; If the corresponding global system for mobile communications GSM of the positional information of the terminal called that carries in the described beep-page message, and/or, the identification information of the terminal called that carries in the described beep-page message belongs to the identification information of the single deck tape-recorder double-standby terminal that obtains in advance, and judging described terminal called is the single deck tape-recorder double-standby terminal.
8. equipment according to claim 7 is characterized in that, also comprises:
Acquisition module, be used for obtaining in advance the identification information of single deck tape-recorder double-standby terminal, described acquisition module specifically is used for obtaining in the lane place renewal process Temporary Mobile Subscriber Identity TMSI, IMSI International Mobile Subscriber Identity or the international mobile device sign indicating number IMEI of single deck tape-recorder double-standby terminal; Perhaps, pre-configured TMSI, IMSI or the IMEI that belongs to the single deck tape-recorder double-standby terminal.
9. equipment according to claim 7 is characterized in that, also comprises:
The switching command sending module, be used for sending switching to described second network control node and require message, so that by the interface between described first network control node and described second network control node, execution CS switches in the territory, the CS business is switched to described first network control node belong on another network control node of same network.
10. equipment according to claim 7 is characterized in that, also comprises:
The switching command receiver module, be used for receiving the handover request message that described second network control node sends, so that by the interface between first network control node and second network control node, carry out the CS territory and switch, the CS business is switched on described first network control node.
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