CN101854687A - Method, equipment and system for switching voice service and access network controller - Google Patents
Method, equipment and system for switching voice service and access network controller Download PDFInfo
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- CN101854687A CN101854687A CN200910081116A CN200910081116A CN101854687A CN 101854687 A CN101854687 A CN 101854687A CN 200910081116 A CN200910081116 A CN 200910081116A CN 200910081116 A CN200910081116 A CN 200910081116A CN 101854687 A CN101854687 A CN 101854687A
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Abstract
The embodiment of the invention relates to a method for switching a voice service. The method comprises the following steps of: receiving a switching request sent by a user and learning that the user needs performing a voice service switching from a source network to a target network by using a mobile switching center, wherein the source network is a GERAN/UTRAN network; and the target network is a long term evolution network; learning information on an access network controller registered by the user; and informing the access network controller of performing voice switching on the user. The embodiment of the invention also relates to equipment for switching the voice service. The embodiment of the invention also relates to the access network controller, which comprises a receiving module and a switching module. The embodiment of the invention also relates to a system for switching the voice service. Therefore, the method, the equipment, and the system for switching the voice service and the access network controller in the embodiment of the invention realize switching of the voice service from the GERAN/UTRAN network to the long term evolution network.
Description
Technical field
The embodiment of the invention relates to moving communicating field, especially a kind of speech business switching handling method, Apparatus and system and access network controller.
Background technology
As shown in Figure 1, network architecture schematic diagram for prior art, circuit switching (Circuit Switched, CS) the main processed voice business in territory, the signaling plane controlled entity in CS territory is (the Mobile Switch Center of mobile switching centre, MSC)/and VLR Visitor Location Register (Visitor Location Register, VLR).Global system for mobile communications (Global System for Mobile Communication, GSM) enhancement mode GSM evolution data (Enhanced Data Rate for GSM Evolution, EDGE) Radio Access Network (GSM EDGE Radio Access Network, GERAN) wireless access network element base station sub-system (Base Station Subsystem in the network, BSS) be connected with MSC/VLR by the A interface, universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) terrestrial access network (UMTS Territorial Radio Access Network, UTRAN) (Radio Network Controller RNC) is connected with MSC by Iu-CS interface the wireless access network element radio network controller in.
Third generation partner plans (The 3rd Generation Partnership Project, (the Long Term Evolution of Long Term Evolution 3GPP), LTE) plan has defined the framework of new mobile communications network, only kept packet domain, therefore the packet network (EPS, evolved packet system) that is called evolution.Again as shown in Figure 1, the core net of EPS mainly comprises mobile management entity (Mobility Management Entity, MME), gateway (Serving Gateway, S-GW), packet data gateway (PDN Gateway, PDN-GW or P-GW) three logic function bodies, MME is a mobile management entity, be responsible for Non-Access Stratum (Non-Access Stratum, NAS) signaling and NAS signaling are encrypted, and roaming, functions such as tracking, distributing user temporary identity sign, safety etc., it is corresponding to current UMTS internal system service general grouping service wireless (General Packet Radio Service, GPRS) support node (Serving GPRS Support Node, control plane part SGSN).S-GW is responsible for the local mobility anchor point and the mobility anchor point and the Lawful Interception relevant information of 3GPP internal system; PDN-GW then is responsible for strategy execution and charging and Lawful Interception correlation function.
In order in the LTE network, to use CS territory business, can be connected to the CS domain core net by EPS (Evolved packet system) network, again as shown in Figure 1, PDN-GW in the EPS network is by common access network controller (Generic Access Network Controller, IWF) be connected on the MSC/MLR of CS core net, IWF possesses the ability of Simulation with I u-CS/A interface, for example, and IWF configuration Iu-CS/A interface corresponding protocols stack.(User Equipment UE) will communicate with MSC user terminal, and at first its sends message to IWF, and IWF can become the message conversion of receiving the signaling format on the Iu-CS/A interface, and sends to MSC, thereby finishes communicating by letter of UE and MSC.In like manner, IWF can give UE from the forwards that MSC receives.The LTE network is being as the exchange channels between UE and the IWF under this communication pattern.
Sv is the reference point between MME and the IWF, UMTS Terrestrial radio access network (Evolved UMTS Territorial Radio Access Network when the evolution that LTE takes place, E-UTRAN) network is when the GERAN/UTRAN in CS territory network switches, and MME sends message informing by Sv to IWF and switches.Z1 is that (User Equipment UE) and the reference point between the IWF, can be based on IP to subscriber equipment, regards IP tunnel as.
Existing when switching to the CS territory of E-UTRAN network based on the GERAN/UTRAN network, if the target access network network element is eNodeB, and existing eNodeB can't handle the CS domain signaling, realizes the switching of GERAN/UTRAN network to the CS territory of E-UTRAN network.
Summary of the invention
The embodiment of the invention provides a kind of speech business switching handling method, Apparatus and system and access network controller, to realize the switching of the speech business from the GERAN/UTRAN network to the E-UTRAN network.
The embodiment of the invention provides a kind of speech business switching handling method, comprising:
Mobile switching centre receives the handoff request that the user sends, and knows that the user need carry out the speech business switching from the source network to the objective network, and wherein source network is the GERAN/UTRAN network, and objective network is a long-term evolving network;
Know the information of the access network controller of described user's registration;
Notify described access network controller that the user is carried out the voice hand-off process.
The embodiment of the invention also provides a kind of speech business switch processing device, comprising:
Receiver module is used for mobile switching centre and receives the handoff request that the user sends, and knows that the user need carry out the speech business switching from the source network to the objective network, and wherein source network is the GERAN/UTRAN network, and objective network is a long-term evolving network;
Know module, be used to know the information of the access network controller of described user's registration;
Notification module is used to notify described access network controller that the user is carried out the voice hand-off process.
The embodiment of the invention also provides a kind of access network controller, comprising:
Receiver module is used to receive the handoff request that mobile switching centre transmits;
Handover module is used for according to described handoff request the speech business that the user carries out from the source network to the objective network being switched, and wherein source network is the GERAN/UTRAN network, and objective network is a long-term evolving network.
The embodiment of the invention also provides a kind of speech business switching processing system, comprising:
Mobile switching centre is used to receive the handoff request that the user sends, and knows that the user need carry out the speech business switching from the source network to the objective network, and wherein source network is the GERAN/UTRAN network, and objective network is a long-term evolving network;
Access network controller is used for after receiving the handoff request that described mobile switching centre transmits, and according to described handoff request the speech business that the user carries out from the source network to the objective network is switched.
Therefore, speech business switching handling method, Apparatus and system and the access network controller of the embodiment of the invention, the function of the IWF anolog base station by user registration, the user's voice business is carried out hand-off process, thereby realized of the switching of GERAN/UTRAN network to the speech business of E-UTRAN network.
Description of drawings
Fig. 1 is the network architecture schematic diagram of prior art;
Fig. 2 is the flow chart of speech business switching handling method embodiment one of the present invention;
Fig. 3 is the flow chart of speech business switching handling method embodiment two of the present invention;
Fig. 4 is the signaling diagram of speech business switching handling method embodiment two specific implementations of the present invention;
Fig. 5 is the signaling diagram of speech business switching handling method embodiment two step 201b of the present invention and step 201c;
Fig. 6 is one of the signaling diagram of addressing IWF among the speech business switching handling method embodiment two of the present invention;
Fig. 7 is two of the signaling diagram of addressing IWF among the speech business switching handling method embodiment two of the present invention;
The signaling diagram that Fig. 8 sets up in the carrying of the proprietary speech business of objective network for triggering among the speech business switching handling method embodiment two of the present invention;
Fig. 9 is the signaling diagram of step 204e among the speech business switching handling method embodiment two of the present invention;
Figure 10 is the flow chart of speech business switching handling method embodiment three of the present invention;
Figure 11 is the signaling diagram of speech business switching handling method embodiment three specific implementations of the present invention;
Figure 12 is the signaling diagram of 401b among the speech business switching handling method embodiment three of the present invention and step 401c;
Figure 13 is one of the signaling diagram of addressing IWF among the speech business switching handling method embodiment three of the present invention;
Figure 14 is two of the signaling diagram of addressing IWF among the speech business switching handling method embodiment three of the present invention;
Figure 15 is the signaling diagram of step 404i among the speech business switching handling method embodiment three of the present invention;
Figure 16 is the structural representation of embodiment of the invention speech business switch processing device;
Figure 17 is the structural representation of embodiment of the invention access network controller;
Figure 18 is the structural representation of another access network controller of the embodiment of the invention;
Figure 19 is the embodiment of the invention structural representation of an access network controller again;
Figure 20 is the structural representation of embodiment of the invention speech business switching processing system.
Embodiment
Below by drawings and Examples, the technical scheme of the embodiment of the invention is described in further detail.
Processing method embodiment one
As shown in Figure 2, the flow chart for speech business switching handling method embodiment one of the present invention specifically comprises the steps:
Therefore speech business switching handling method embodiment one of the present invention has realized that speech business is in internetwork switching.
Processing method embodiment two
As shown in Figure 3, the flow chart for speech business switching handling method embodiment two of the present invention specifically comprises the steps:
As shown in Figure 4, signaling diagram for speech business switching handling method embodiment two specific implementations of the present invention, UE passes through source network GERAN/UTRAN network registry to IWF among the figure, if UE does not carry out registered in advance to IWF, can't triggering following IWF execution be in the E-UTRAN network then, set up the flow process that resource needed is switched in speech business at objective network LTE network; The specific implementation of step 201 comprises:
Step 201a, UE are registered to source SGSN and MSC, promptly UE in the GERAN/UTRAN network, finish CS territory and packet switching (Packet Switched, PS) territory adheres to;
Step 201b, UE is the initiation packet data protocol activating in the GERAN/UTRAN network, (the Access Point Network of employed access network in activation, APN) information, can be default APN (Default APN), also can be specific APN, by activating packet data protocol, UE be established to the IP tunnel of IWF;
Step 201c, based on the IP tunnel that obtains, UE carries out discovery and the registration process of IWF, is registered on the IWF;
As shown in Figure 5, the signaling diagram for speech business switching handling method embodiment two step 201b of the present invention and step 201c comprises the steps: among the figure
Step 201b1, UE send the packet data protocol activation request message to SGSN, and employed APN information in this packet data protocol activation can be default APN (Default APN), also can be specific APN;
Step 201b2 creates carrying between SGSN and the S-GW/P-GW;
Step 201b3:SGSN replys packet data protocol activation to UE and accepts message;
Step 201c1:UE sends login request message to IWF, carry sign international mobile subscriber identity (the International Mobile Subscriber Identification Number of UE in the message, IMSI), the current GERAN/UTAN cell information of UE;
Step 201c2:IWF replys registration to UE and accepts message, carries the relevant information of IWF in the message, as IWF cell information (IWF cell information).
Step 201 is preparation process, and UE is accomplished to the IWF registration in the GERAN/UTRAN network purpose is to switch to the LTE network for the speech business of CS territory, and speech business can directly be finished by the CS territory.
Step 202 after the MSC of source network receives measurement report, is addressed to the IWF of described registration, and sends handoff request to this IWF;
Again as shown in Figure 4, the specific implementation of step 202 comprises:
Step 202a, UE is to source access network elements source BSS/RNC (Source BSS/RNC) reporting measurement reports;
Step 202b, access network elements sends handoff request to MSC, and it is that switch in the CS territory that notice MSC switches;
Step 202c, MSC are addressed to the IWF of UE registration, and it as the target access network network element, is sent handoff request to IWF;
If MSC changes in the handoff procedure in CS territory, then the source MSC of source network sends to target MSC with the measurement report that receives in the step 202, target MSC is addressed to the IWF of described registration, specific implementation is that MSC changes in the handoff procedure in CS territory, be source MSC (Source MSC) notification target MSC (Target MSC), Target MSC sends handoff request message to IWF;
The IWF of MSC addressing UE registration can be following method, and first method is the information that the MSC of source network receives the registration IWF of BSS/RNC transmission, is addressed to the IWF of this registration according to the information of this registration IWF.Be that UE is when BSS/RNC reports the measurement report of switching, when reporting the metrical information of E-UTRAN, report the information of the IWF that is registered, the information that BSS/RNC reports according to UE, send handoff request to MSC, wherein comprise IWF information, MSC can addressing IWF according to this information, and is specific as follows:
As shown in Figure 6, for one of the signaling diagram of addressing IWF among the speech business switching handling method embodiment two of the present invention, specifically comprise the steps:
Step 2021a, UE not only report the metrical information of E-UTAN network when reporting the measurement report of switching, for example: E-UTRAN cells, also need to report the metrical information of the IWF that is registered simultaneously, for example: IWF cells,
Therefore need the metrical information of the E-UTAN network that access network elements identification UE reports and the metrical information of IWF.When being the UE reporting measurement reports, need identify the metrical information of E-UTAN network and the metrical information of IWF, the metrical information that UE reports in the metrical information of E-UTRAN network and the normal PS territory handoff procedure is consistent.For the metrical information of IWF, at first it derives from the discovery and registration process of UE execution IWF, the IWF System Information information that the IWF of registration provides to UE, and as step 201c2 among Fig. 5, access network elements has two kinds of processing mode methods:
1, the IWF cell information IWF cell information that UE obtains when reporting registration IWF gives the source network access network element, the source network access network elements can be mapped as IWF cell information cellular global identity (Cell Global Identification, CGI), follow-up access network elements provides Target ID/Cell information to MSC, described Target ID/Cell information is corresponding with described CGI or be converted to by described CGI, the corresponding relation of pre-configured Target ID/Cell of MSC and IWF, MSC can be addressed to the UE IWF of pre-registration before according to this information, thereby guarantees that UE switches to the sub-district of the IWF of registration.
2, the UE address information sequence number for example that directly reports IWF, the IWF address information that follow-up access network elements provides UE to report to MSC, MSC discerns described IWF address information or the address information of described IWF is obtained the IWF of pre-registration before the UE through dns resolution.
Step 2021b, the measurement report that access network elements (BSS/RNC) reports according to UE, send handoff request to MSC, wherein comprise target IWF information, Target ID/Cell information for example, MSC is according to the corresponding relation addressing IWF of Target ID/Cell and IWF, perhaps IWF address information, sequence number for example, MSC obtains the IWF address, addressing IWF through dns resolution;
Step 2021c, the measurement report that access network elements (BSS/RNC) reports according to UE sends handoff request to SGSN, wherein comprises target eNode B information (Target ID/Cell information);
Step 2021d, MSC obtain the information of target side IWF, can addressing IWF according to this information, and the IWF of pre-registration sends handoff request before UE.
The another kind of method of the IWF that MSC addressing UE is registered can be, IWF will self be registered to home subscriber server (Home Subscriber Server, HSS) in, MSC need ask the IWF address information to HSS when the MSC of source network initiatively intercutted to MSC or switching as CAMEL-Subscription-Information the IWF address, and MSC can addressing IWF according to the address information of the IWF of registration.
As shown in Figure 7, for two of the signaling diagram of addressing IWF among the speech business switching handling method embodiment two of the present invention, specifically comprise the steps:
Step 2022a, UE initiates register requirement to IWF, for example: UE-IWF REGISTER REQUEST;
Step 2022b, IWF will self be registered among the HSS, and (for example: (IWF ID is IMSI) to HSS for Update Location Request to send register requirement.Wherein IWF ID is the identification information of IWF, the IWF that can help addressing to register;
Step 2022c, HSS returns the registration response to IWF;
Step 202d, IWF returns the registration response to UE, and for example: UE-IWF REGISTER ACCEPT comprises " IWF System Information " in the message;
Subsequent treatment has two kinds of situations: first kind is the IWF information that MSC initiatively obtains the UE registration
Step 202e1, the UE reporting measurement reports;
Step 202e2, BSS sends handoff request to MSC, can carry the information (for example: " Handover CS to VoIP bearer ") that instruct MS C obtains the IWF address information of UE registration in the handoff request;
Step 202e3, MSC find that UE switches to the E-UTRAN network or according to the triggering of step 202e2, to the IWF address information of HSS request UE registration, for example: " IWF Request (MSC ID, IMSI) ";
Step 202e4, HSS returns the IWF address information that UE registers to MSC, for example: " IWF Response (IWF ID, IMSI);
Step 202e5, MSC obtain the IWF address information that HSS provides, can addressing IWF, send handoff request to the IWF of UE registration.
Second kind is that HSS initiatively provides UE the IWF information of registration;
Step 202f1, IWF information can be used as the subscription data of UE, when finding subscription data, HSS changes (IWF information updating), HSS to the network element of finishing the service UE of registration (for example: MSC, wherein HSS is known the network element of service UE by subscription data) insertion subscription data Insert Subscriber Data (IMSI, Subscription Data), carry associated IWF address information (being included in Subscription Data) in the message;
Step 202f2, MSC replys response message and gives HSS.
Again as shown in Figure 4, the specific implementation of step 203 comprises:
The specific implementation step of step 203a is as follows:
Step 203a1, IWF provide information, and (Policy Charging Rules Function PCRF), triggers the carrying of PCRF initiation speech business and sets up flow process to "Policy and Charging Rules Function;
Step 203a2, PCRF to P-GW strategy is provided and the control of chargeing (Policy Charging Control, PCC) policy information triggers P-GW and initiates dedicated bearing and set up flow process;
Step 203a3, the relevant bearer of PCRF reply voice business is set up response and is given IWF;
Different with traditional process, UE resides in source network, IWF initiates in objective network resource preparation in advance, because the carrying that voice are relevant need be set up at objective network-LTE network this moment, P-GW needs a trigger point to initiate the relevant carrying foundation of voice so, and this trigger point is exactly that the relevant IP-CAN (default bearer) of voice switches to objective network.Implementation is specially:
The first, Source access network elements notice Source SGSN, Source SGSN notice Target MME, Target MME reinforms S-GW, and the relevant IP-CAN (default bearer) of S-GW notice P-GW switches to objective network.
The second, the UE context that Target MME passes over from Source SGSN finds that speech business switches to the EPS network from the CS territory, and Target MME reinforms S-GW, and the relevant IP-CAN (default bearer) of S-GW notice P-GW switches to objective network.
Both, IWF had triggered PCRF and provided the required PCC information of carrying of setting up to P-GW, and flow process is set up in the carrying that is begun to carry out speech business by objective network MME notice P-GW.
As shown in Figure 8, be the signaling diagram that triggering among the speech business switching handling method embodiment two of the present invention is set up in the carrying of the proprietary speech business of objective network, above-mentioned two kinds of implementations specifically comprise the steps:
Step 203a01, IWF provide business information to PCRF, trigger the session modification flow process (triggering the relevant carrying of speech business sets up) that PCRF initiates IP-CAN;
Step 203a02, PCRF issue new PCC policy information and give P-GW;
If do not introduce strategy and control (the Policy Charging Control that charges, PCC) framework, if promptly there is not dynamic PCC policy information, corresponding PCC policy information can be configured in P-GW, step 203a01 and step 203a02 can merge into a step so, and promptly IWF triggers P-GW initiation dedicated bearing and sets up flow process; In addition because the chain of command of speech business or special service quality (the Quality of Service of user plane bearer (VOIP carrying), QoS) requirement, it can only be set up in the EPS network, so PCRF needs the chain of command of special instructions P-GW (for example: message described in step 203a01 and the step 203a02 is carried indication information " LTE only " or " CS to LTE Voice handover " or the like) or the own configured voice business of P-GW or user plane bearer (VOI P carrying) can only initiate dedicated bearing foundation in the EPS network; Relevant IP-CAN (default bearer) is in the LTE network if P-GW finds voice, and P-GW will initiate dedicated bearing at once and set up flow process so.Otherwise P-GW suspends dedicated bearing sets up flow process, waits for that relevant IP-CAN (default bearer) switches to the LTE network;
Step 203a03, access network elements sends handoff request to source SGSN; In order to realize that indication has speech business to switch to the EPS network from the CS territory, be that the relevant IP-CAN (default bearer) of the described speech business of performing step 203a02 switches to LTE network (described default bearer is based upon in the GERAN/UTRAN network at step 202e2), for example carry the speech business indication message (for example: " CS to LTE Voice handover ") in CS territory in the message;
Step 203a04, Source SGSN send to Target MME and transmit the request of resetting (IMSI, MMContext, packet data protocol Context), and the related context with UE in the message passes to MME; May also need to carry the speech business indication message in the CS territory described in the step 203a03 in the message;
Step 203a05, under the normal condition, if the S-GW of service does not change, in the preparatory stage of switching, MME does not need to carry out Signalling exchange with the S-GW of service.Even if the S-GW of service changes, MME sends and creates bearing request message to new S-GW, but S-GW can not carry out alternately with P-GW, and in the present embodiment because the triggering of the speech business indication message in the CS territory of transmitting among the step 203a04, MME need send establishment (service S-GW changes) or upgrade the S-GW of (service S-GW does not change) bearing request message to the UE service, carries the speech business indication message in CS territory in the message;
If the then triggering of step 203a05 is set up in second kind of carrying is that MME finds that the context (MM Context, packet data protocol Context) of the UE that passes over has comprised relevant IP-CAN (default bearer) session information of speech business, specifically handles as follows:
Adopt specific APN mode for speech business, MME finds that the UE context that passes over has comprised the relevant IP-CAN (default bearer) of speech business, can judge by APN;
Adopt default (Default APN) mode for speech business, be that this PDN connects down, except carry voice traffic can also be carried other business, if activated the relevant control signaling bear of speech business, can (for example control signaling bear by specifically defined this, carrying special indication allows MME discern this carrying to belong to the relevant control signaling bear of speech business), MME also can discern the relevant IP-CAN (default bearer) of the speech business control signaling bear relevant with speech business (always being associated in default bearer because of dedicated bearing) so;
Step 203a06, S-GW send and upgrade bearing request message to P-GW, carry the speech business indication message in CS territory in the message, promptly notify the relevant IP-CAN (default bearer) of P-GW voice to switch to the LTE network, and P-GW initiates the dedicated bearing visioning procedure;
In this step, the business data flow that transmitting this moment does not need to switch to the LTE network, according to normal step process, the business data flow that just will transmit in the execution phase of switching switches to the LTE network, realizing that this function can be the internal configurations of P-GW, also can be (for example: the speech business indication message in CS territory) to carry special indication information in the step 203a06 message.
Step 203a07, P-GW replys more new bearer response to S-GW;
Step 203a08, S-GW reply to MME and create/more new bearer response;
Step 203a09, Target MME send handoff request message to Target eNodeB, require to set up EPS bearer;
Step 203a10, Target eNodeB reply Target MME handoff request default message;
Step 203a11, P-GW send to create the dedicated bearing request message to S-GW, carry speech business that the indication of Cause reason belongs to the CS territory in the message and switch the voice bearer that causes and (for example: the speech business indication message in CS territory) set up; Because the speech business in CS territory is switched causes, and when described voice bearer taking place set up, UE still is in source network to described Cause in order to indicate current voice bearer to set up to be.
Step 203a12, S-GW send mission dedicated bearing request message to Target MME, and the speech business that the indication of Cause reason belongs to the CS territory in the message is switched the voice bearer that causes and (for example: the speech business indication message in CS territory) set up;
Step 203a13, MME send the load creating request message to Target eNodeB; Bearer Setup Request (EPS Bearer QoS, ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST, Sl-TEID), ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST message is NAS message, need pass to UE, UE is according to the information creating bearer context that carries in the NAS message, carries speech business that the indication of information Cause reason belongs to the CS territory in the message and switches the voice bearer that causes and (for example: the speech business indication message in CS territory) set up;
Step 203a13 can send with the message with step 203a09, also can send separately, the both sets up carrying, step 203a09B3b6 is recovering bearing (relevant bearer is set up in the GERAN/UTRAN network), has also comprised NAS message simultaneously and step 203a13B2c5 is newly-built carrying (setting up radio bearer).Concrete processing is as follows:
1, the message among step 203a13 and the step 203a09 sends together, message can adopt the handoff request message of step 203a09, but the function that must possess recovering bearing and newly-built carrying, eNodeB can be with the NAS message buffering of newly-built carrying after receiving message like this, and eNodeB knows that be in handoff procedure this moment, UE still is in source network (by described Cause perception), wait for that UE is linked into the LTE network, carry out carrying again and set up flow process, and relevant beared information passed to UE, UE is according to the information creating bearer context that carries in the NAS message;
2, the message among step 203a13 and the step 203a09 sends separately, carry an indication information in the message among the step 203a13, for example: the speech business indication message in CS territory, eNodeB receives after the message according to the NAS message buffering of indication information with newly-built carrying, and eNodeB knows that be in handoff procedure this moment, UE still is in source network, wait for that UE is linked into the LTE network, carry out carrying again and set up flow process, and relevant beared information passed to UE, UE is according to the information creating bearer context that carries in the NAS message;
Step 203a14, Target eNodeB reply Target MME carrying and set up response message, and Bearer Setup Response (EPS Bearer Identity, S1-TEID);
The message of this step can send with the message of step 203a09 with step 203a10 and step 203a13 message or send separately;
Step 203a15, Target MME send to Target MME to Source SGSN and transmit the request acknowledge message of resetting;
Step 203a16, under the normal condition, has only the message (response message is set up in carrying) of receiving step 203a14 and the ACTIVATE DEDICATED EPS BEARER CONTEXT Accept message that UE replys to MME, MME replys to S-GW and creates the dedicated bearing response, but need special processing, because UE also resides in source network (by described Cause perception), can not reply ACTIVATE DEDICATED EPS BEARER CONTEXT Accept to MME, so just trigger the message of step 203a16 when the message (response message is set up in carrying) of MME receiving step 203a14, know that this is the relevant treatment of voice bearer, MME replys to S-GW and creates the dedicated bearing response; MME can pass through Bearer Setup Response (EPS Bearer Identity, S1-TEID) EPS Bearer ID judges that bearer types belongs to voice bearer in the message;
Step 203a17, S-GW reply to P-GW and create the dedicated bearing response;
Step 203a19, PCRF replys response message to IWF.
Step 203b, IWF replys switching request response and gives MSC;
Step 203c, access network elements sends handoff request to Source SGSN, and notice Source SGSN switches; This step can with step 202b parallel processing;
Step 203d, the GERAN/UTRAN network is the preparatory stage that switch in the PS territory to the preparatory stage that the EPS network switches.
Step 204 when the speech business data flow is delivered to IWF, utilizes described data flow transmission resource by IWF transmitting voice service data flow.
This step can be specially switching that IWF will receive and finish request and send to described MSC, this MSC sends to described IWF with the speech business data flow, transmit by described IWF, so this step is the execution phase of GERAN/UTRAN network to the voice switching of E-UTRAN network, again as shown in Figure 4, the specific implementation of step 204 comprises:
Step 204a, MSC send switching command to source access network elements (BSS/RNC);
Step 204b, source SGSN send switching command to source access network elements (BSS/RNC);
Step 204c, source access network elements (BSS/RNC) receive that MSC and source SGSN send switching command, send switching command to UE, and notice UE switches;
Step 204d, UE switches to target side, sends to handoff completion message to target side access network elements (eNodeB), and eNodeB gives target side MME with forwards;
Step 204e, the professional relevant bearer of air interface voice is set up flow process;
Not only need eating dishes without rice or wine recovering bearing this moment is carrying in the corresponding GERAN/UTRAN network, also need the promptly corresponding dedicated bearing of setting up at step 203a of newly-built carrying, for the newly-built carrying of step 203a process, eNodeB also needs the NAS message of buffer memory is sent to UE, and UE need be according to the information creating bearer context that carries in the NAS message.
As shown in Figure 9, the signaling diagram for step 204e among the speech business switching handling method embodiment two of the present invention specifically comprises the steps:
Step 204e1, radio bearer is set up flow process; ENodeB is according to the information in the buffer memory signaling, the bearer QoS that needs are newly-built is matched to Radio Bearer QoS, send RRC Connection Reconfiguration (Radio Bearer QoS then, ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST, EPS RB Identity) message is given UE; UE preserves the information of carrying in the ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST message, and by LBI dedicated bearing is linked on the default bearer.UE use uplink packet filter (UL TFT) decides the matching relationship between business data flow service data flows and the radio bearer radio bearer;
Step 204e2, UE send RRC Connection Reconfiguration Complete message is confirmed radio bearer to eNodeB activation radio bearer activation;
Step 204e3, UE reply ACTIVATE DEDICATED EPS BEARER CONTEXT Accept message and give MME; MME finds that the preliminary treatment of ACTIVATE DEDICATED EPS BEARER CONTEXT Accept message has promptly sent B2c7 message to S-GW, then no longer triggers and creates the dedicated bearing response message to S-GW; Whether MME can judge the preliminary treatment of this flow process by the EPS bearer identity information of carrying in the ACTIVATE DEDICATED EPS BEARER CONTEXT Accept message.
Step 204f, the GERAN/UTRAN network is the execution phase that switch in the PS territory to the execution phase that the EPS network switches, business data flow switches to objective network in this process;
Step 204g, UE reply to switch to IWF and finish, and perhaps target MME replys to switch to IWF and finishes;
If replying switching by MME to IWF finishes, MME need obtain the IWF address information of UE service, have two kinds of methods to realize, first method is that the address information that UE carries IWF in 2 message of step 204d is given eNodeB, and eNodeB carries the address information of IWF and gives MME; Second method as shown in Figure 4, the SGSN of UE registration obtains the IWF address information, is kept in the context of UE, passes to MME in step 203d; This step can be behind step 204d;
Step 204h, IWF reply to switch to MSC and finish, and the speech business data flow switches to IWF from source, and promptly MSC is delivered to IWF with voice flow, by IWF the speech business digital data stream is forwarded to UE.
Realize the switching of speech business thus, realize that promptly the speech business data flow switches to the EPS network from the CS territory from the GERAN/UTRAN network to the E-UTRAN network.
Speech business switching handling method embodiment two therefore of the present invention has realized the pre-established of objective network voice bearer by the mode at the IWF pre-registration, and speech business switches to the LTE network from the CS territory, has reduced the voice time delay for switching.
Processing method embodiment three
As shown in figure 10, the flow chart for speech business switching handling method embodiment three of the present invention specifically comprises the steps:
As shown in figure 11, signaling diagram for speech business switching handling method embodiment three specific implementations of the present invention, UE passes through source network GERAN/UTRAN network registry to IWF among the figure, if UE does not carry out registered in advance to IWF, can't triggering following IWF execution be in the E-UTRAN network then, set up the flow process that resource needed is switched in speech business at objective network LTE network; The specific implementation of step 401 comprises:
Step 401a, UE are registered to Source SGSN and MSC, promptly UE in the GERAN/UTRAN network, finish CS territory and packet switching (Packet Switched, PS) territory adheres to;
Step 401b, UE is the initiation packet data protocol activating in the GERAN/UTRAN network, (the Access Point Network of employed access network in activation, APN) information, can be default APN (Default APN), also can be specific APN, by activating packet data protocol, UE obtains the IP address;
Step 401c, based on the IP tunnel that obtains, UE carries out discovery and the registration process of IWF, is registered on the IWF;
As shown in figure 12, the signaling diagram for 401b and step 401c among the speech business switching handling method embodiment three of the present invention comprises the steps:
Step 401b1, UE send the packet data protocol activation request message to SGSN, and employed APN information in this packet data protocol activation can be default APN (Default APN), also can be specific APN;
Step 401b2 creates carrying between SGSN and the S-GW/P-GW;
Step 401b3:SGSN replys packet data protocol activation to UE and accepts message;
Step 401c1:UE sends login request message to IWF, carry sign international mobile subscriber identity (the International Mobile Subscriber Identification Number of UE in the message, IMSI), the current GERAN/UTAN cell information of UE;
Step 401c2:IWF handles the register requirement of UE, replys registration to UE and accepts message, carries the relevant information of IWF in the message, as IWF cell information (IWF cell information).
Step 401 is preparation process, and UE is accomplished to the IWF registration in the GERAN/UTRAN network purpose is to switch to the LTE network for the speech business of CS territory, and speech business can directly be finished by the CS territory.
Again as shown in figure 11, the specific implementation of step 402 comprises:
Step 402a, UE is to source access network elements source BSS/RNC (Source BSS/RNC) reporting measurement reports;
Step 402b, access network elements sends handoff request to MSC, and it is that switch in the CS territory that access network elements notice MSC switches;
Step 402c, MSC are addressed to the IWF of UE registration, and it as the target access network network element, is sent handoff request to IWF;
If MSC changes in the handoff procedure in CS territory, then the source MSC of source network sends to target MSC with the measurement report that receives in the step 402, target MSC is addressed to the IWF of described registration, specific implementation is that MSC changes in the handoff procedure in CS territory, be source MSC (Source MSC) notification target MSC (Target MSC), Target MSC sends handoff request message to IWF;
The IWF of MSC addressing UE registration has two methods, and identical with two kinds of register methods of embodiment two, repeats no more.
As shown in figure 13, for one of the signaling diagram of addressing IWF among the speech business switching handling method embodiment three of the present invention, specifically comprise the steps:
Step 4021a, UE not only report the metrical information of E-UTAN network when reporting the measurement report of switching, for example: E-UTRAN cells, also need to report the metrical information of the IWF that is registered simultaneously, for example: IWF cells,
Therefore need the metrical information of the E-UTAN network that access network elements identification UE reports and the metrical information of IWF.When being the UE reporting measurement reports, need identify the metrical information of E-UTAN network and the metrical information of IWF, the metrical information that UE reports in the metrical information of E-UTRAN network and the normal PS territory handoff procedure is consistent.For the metrical information of IWF, at first it derives from the discovery and registration process of UE execution IWF, the IWF System Information information that the IWF of registration provides to UE, and as step 401c2 among Figure 12, access network elements has two kinds of processing mode methods:
1, similar with the metrical information of E-UTRAN network, for example, UE reports IWF cell information, access network elements can be mapped as CGI with IWF cell information, follow-up access network elements provides Target ID/Cell information to MSC, described Target ID/Cell information is corresponding with described CGI or be converted to by described CGI, and MSC can be addressed to the IWF of pre-registration before the UE according to this information.The corresponding relation of MSC configuration Target ID/Cell and IWF.
2, the UE address information sequence number for example that directly reports IWF, the IWF address information that follow-up access network elements provides UE to report to MSC, MSC discerns described IWF address information or the address information of described IWF is obtained the IWF of pre-registration before the UE through dns resolution.
Step 4021b, the measurement report that access network elements (BSS/RNC) reports according to UE, send handoff request to MSC, wherein comprise target IWF information, Target ID/Cell information for example, MSC is according to the corresponding relation addressing IWF of Target ID/Cell and IWF, perhaps IWF address information, sequence number for example, MSC obtains the IWF address, addressing IWF through dns resolution;
Step 4021c, the measurement report that access network elements (BSS/RNC) reports according to UE sends handoff request to SGSN, wherein comprises target eNode B information (Target ID/Cell information);
Step 4021d, MSC obtain the information of target side IWF, can addressing IWF according to this information, and the IWF of pre-registration sends handoff request before UE.
As shown in figure 14, for two of the signaling diagram of addressing IWF among the speech business switching handling method embodiment three of the present invention, specifically comprise the steps:
Step 4022a, UE initiates register requirement to IWF, for example: UE-IWF REGISTER REQUEST;
Step 4022b, IWF will self be registered among the HSS, and (for example: (IWF ID is IMSI) to HSS for Update Location Request to send register requirement.Wherein WF ID is the identification information of IWF, the IWF that can help addressing to register;
Step 4022c, HSS returns the registration response to IWF;
Step 4022d, IWF returns the registration response to UE, and for example: UE-IWF REGISTER ACCEPT comprises " IWF System Information " in the message;
Subsequent treatment has two kinds of situations: first kind is the IWF information that MSC initiatively obtains the UE registration
Step 402e1, the UE reporting measurement reports;
Step 402e2, BSS sends handoff request to MSC, can carry the information (for example: " Handover CS to VoIP bearer ") that instruct MS C obtains the IWF address information of UE registration in the handoff request;
Step 402e3, MSC find that UE switches to the E-UTRAN network or according to the triggering of step 402e2, to the IWF address information of HSS request UE registration, for example: " IWF Request (MSC ID, IMSI) ";
Step 402e4, HSS returns the IWF address information that UE registers to MSC, for example: " IWF Response (IWFID, IMSI);
Step 402e5, MSC obtain the IWF address information that HSS provides, can addressing IWF, send handoff request to the IWF of UE registration.
Second kind is that HSS initiatively provides UE the IWF information of registration;
Step 402f1, IWF information can be used as the subscription data of UE, when finding subscription data, HSS changes (IWF information updating), HSS to the network element of finishing the service UE of registration (for example: MSC) insert subscription data Insert Subscriber Data (IMSI, Subscription Data), carry associated IWF address information (being included in Subscription Data) in the message;
Step 402f2, MSC replys response message and gives HSS.
Again as shown in figure 11, the specific implementation of step 403 comprises:
Step 403a, IWF replys switching request response and gives MSC;
Step 403b, access network elements sends handoff request to Source SGSN, and notice Source SGSN switches; This step can with step 202b parallel processing;
Step 403c, the GERAN/UTRAN network is the preparatory stage that switch in the PS territory to the preparatory stage that the EPS network switches.
Step 404 utilizes described data flow transmission resource by IWF transmitting voice service data flow.
This step can be specially: the switching that IWF will receive is finished request and is sent to described MSC, and this MSC sends to described IWF with the speech business data flow; Described IWF triggers in the carrying of the proprietary speech business of objective network and sets up flow process, transmits described speech business data flow by described IWF.Again as shown in figure 11, the specific implementation of step 404 comprises:
Step 404a, MSC send switching command to source access network elements (BSS/RNC);
Step 404b, source SGSN send switching command to source access network elements (BSS/RNC);
Step 404c, source access network elements (BSS/RNC) receive that MSC and source SGSN send switching command, send switching command to UE, and notice UE switches;
Step 404d, UE switches to target side, sends to handoff completion message to target side access network elements (eNodeB), and eNodeB gives target side MME with forwards;
Step 404e, the professional relevant bearer of air interface voice is set up flow process;
Not only need eating dishes without rice or wine recovering bearing this moment is carrying in the corresponding GERAN/UTRAN network, also need the promptly corresponding dedicated bearing of setting up at step 203a of newly-built carrying, for the newly-built carrying of step 203a process, eNodeB also needs the NAS message of buffer memory is sent to UE, and UE need be according to the information creating bearer context that carries in the NAS message.
Step 404f, the GERAN/UTRAN network is the execution phase that switch in the PS territory to the execution phase that the EPS network switches, business data flow switches to objective network in this process;
Step 404g, UE reply to switch to IWF and finish, and perhaps target MME replys to switch to IWF and finishes;
If replying switching by MME to IWF finishes, MME need obtain the IWF address information of UE service, have two kinds of methods to realize, first method is that the address information that UE carries IWF in 2 message of step 204d is given eNodeB, and eNodeB carries the address information of IWF and gives MME; Second method as shown in figure 12, the SGSN of UE registration obtains the IWF address information, is kept in the context of UE, passes to MME in step 203d; This step can be behind step 404d;
Step 404h, IWF reply to switch to MSC and finish, and the speech business data flow switches to IWF from source, and promptly MSC is delivered to IWF with voice flow;
404i1, IWF provide information to PCRF, trigger the relevant bearer of PCRF initiation speech business and set up flow process;
404i2, P-GW initiates dedicated bearing and sets up flow process;
404i3, the relevant bearer of PCRF reply voice business is set up response and is given IWF;
The step 404i of this changing method embodiment four and changing method embodiment 2 step 203a are similar, different places are, during execution in step 404i, UE has switched to objective network, and it is same as the prior art that the dedicated bearing in the corresponding flow process is set up flow process (dedicated bearing that P-GW initiates is set up flow process);
The relevant bearer of speech business is based upon step 204i place and carries out, whole GERAN/UTRAN network is exactly that this dedicated bearing is set up the time that consumes to the voice time delay for switching of E-UTRAN network, and embodiment two carries out at step 203a, therefore embodiment two lacks than the handover delay of embodiment four, but flow process is changed big, and embodiment four handover delays are big, and are little but flow process is changed.
As shown in figure 15, be the signaling diagram of step 404i among the speech business switching handling method embodiment three of the present invention, step 404i comprises the steps:
Step 404i01, IWF provide business information to PCRF, trigger the session modification flow process (triggering the relevant carrying of speech business sets up) that PCRF initiates IP-CAN;
Step 404i02, if disposed dynamic PCC strategy, PCRF sends PCC decision provision (QoS policy) message and gives P-GW.This is with initial step " P-GW requests IP-CAN Bearer Signalling " correspondence in " PCRF-Initiated IP-CAN Session Modification procedure " flow process of PCRF initiation.If do not dispose dynamic PCC strategy, P-GW will use local qos policy;
Step 404i03, and P-GW QoS that distribution is specifically carried based on qos policy and transmission establishment dedicated bearing request message Create Dedicated Bearer Request message (IMSI, PTI, Bearer QoS, UL TFT, S5/S8TEID is LBI) to S-GW.Wherein LBI is the bearing identification of default bearer;
Step 404i04, S-GW send and create dedicated bearing request message Create Dedicated Bearer Request (IMSI, PTI, Bearer QoS, UL TFT, S1-TEID, LBI, DL TFT (for PMIP-based S5/S8)) to MME;
Step 404i05, MME send carrying foundation request Bearer Setup Request, and (EPS Bearer QoS, Session Management Request S1-TEID) give eNodeB.In this message, MME need distribute a still untapped bearing identification EPS Bearer Identity for UE, this is identified together with PTI, UL TFT, EPS Bearer QoS parameters (excluding ARP), EPS Bearer Identity and the Linked EPS Bearer Identity cells such as (LBI) are placed on that (this message belongs to NAS message among the newly-built session management configuration cell Session Management Request, passing to UE, is transparent for eNodeB).In addition, if UE has the access capability of UTRAN or GERAN, MME also needs EPS bearer QoS information mapping is become packet data protocol context parameters QoS Negotiated (R99 QoS profile), Radio Priority Packet Flow Id and TI, the information of these mappings also will be included among the session management configuration cell Session Management Configuration IE;
For Packet Flow Id, if UE indicates the BSS packet flow process of not supporting in UE Network Capability, MME does not then need mapping to generate Packet Flow Id so in addition;
Step 404i06, eNodeB is matched to Radio Bearer QoS with bearer QoS, send RRC Connection Reconfiguration (Radio Bearer QoS, Session Management Request, EPS RB Identity) message then and give UE.UE preserves the information among the Session Management Request, and by LBI dedicated bearing is linked on the default bearer.UE use uplink packet filter (UL TFT) decides the matching relationship between business data flow service data flowS and the radio bearer radio bearer;
Step 404i07, UE send RRC Connection Reconfiguration Complete message is confirmed radio bearer to eNodeB activation radio bearer activation;
Step 404i08, and eNodeB transmission Bearer Setup Response (EPS Bearer Identity, S1-TEID) whether message is confirmed bearing activation bearer activation and is indicated requested Bearer QoS can be assigned with to MME;
Step 404i09, UE sends Direct Transfer (Session Management Response) message and is constructed for eNodeB.Session Management Response cell by UE at NAS layer, wherein comprises the EPS Bearer Identity that MME distributes;
Step 404i10, eNodeB sends Uplink NAS Transport (Session Management Response) message and gives MME.
Step 404i11, and B2c11:MME transmission Create Dedicated Bearer Response (EPS Bearer Identity, S1-TEID) message is confirmed bearing activation bearer activation to S-GW;
Step 404i12, S-GW send Create Dedicated Bearer Response, and (EPS Bearer Identity S5/S8-TEID) confirms bearing activation bearer activation to P-GW;
Step 404i13, if dedicated bearing activation process dedicated bearer activation procedure sends PCC Decision Provision message by PCRF and triggers to P-GW, whether P-GW indicates to PCRF requested PCC decision (QoS policy) and is performed so.PCRF handles, and in " PCRF-Initiated IP-CAN Session Modification " flow process, finishes the follow-up flow process of " completion of IP-CAN bearer signalling " Signalling exchange;
Step 404i14, PCRF replys response message to IWF, by IWF the speech business data flow is forwarded to UE.
Realize the switching of speech business thus, realize that promptly the speech business data flow switches to the EPS network from the CS territory from the GERAN/UTRAN network to the E-UTRAN network.
Therefore speech business switching handling method embodiment four-way of the present invention is crossed the mode at the IWF pre-registration, has realized the pre-established of objective network voice bearer, and speech business switches to the LTE network from the CS territory, has reduced the voice time delay for switching.
Processing unit embodiment
As shown in figure 16, structural representation for embodiment of the invention speech business switch processing device, embodiment of the invention speech business switch processing device comprises: receiver module 61, be used for mobile switching centre and receive the handoff request that the user sends, know that the user need carry out the speech business switching from the source network to the objective network, wherein source network is the GERAN/UTRAN network, and objective network is a long-term evolving network; Know module 62, be used to know the information of the access network controller of described user's registration; Notification module 63 is used to notify described access network controller that the user is carried out the voice hand-off process.
Further, know that module 62 can specifically be used for described mobile switching centre and receive the handoff request that comprises the access network controller information that described user registers that access network element sends.Perhaps specifically be used for the access network controller information that described mobile switching centre receives user's registration of described home subscriber server transmission.
Therefore embodiment of the invention speech business switch processing device has realized the switching of the speech business from the GERAN/UTRAN network to the E-UTRAN network.
Access network controller embodiment
As shown in figure 17, be the structural representation of embodiment of the invention access network controller, embodiment of the invention access network controller comprises: receiver module 71 is used to receive the handoff request that mobile switching centre transmits; Handover module 72 is used for according to described handoff request the speech business that the user carries out from the source network to the objective network being switched, and wherein source network is the GERAN/UTRAN network, and objective network is a long-term evolving network.
As shown in figure 18, be the structural representation of another access network controller of the embodiment of the invention, further, handover module 72 can comprise first notification unit 721 and first transmission unit 722.First notification unit 721 is used for when receiver module 71 receives the handoff request of mobile switching centre's forwarding, and the notification target network is that preparation data flow transmission resource is switched in speech business; When receiver module 71 further received mobile switching centre's transmission speech business data flow, first transmission unit 722 was used to utilize data flow transmission resource transmission speech business data flow.
As shown in figure 19, be the embodiment of the invention structural representation of an access network controller again, further, handover module 72 comprises second notification unit 725 and second transmission unit 726.When receiver module 71 further received MSC transmission speech business data flow, it was that preparation data flow transmission resource is switched in speech business that second notification unit 725 is used for the notification target network; Second transmission unit 726 is used to utilize data flow transmission resource transmission speech business data flow.
Therefore embodiment of the invention access network controller has been realized the switching of the speech business from the GERAN/UTRAN network to the E-UTRAN network.
Treatment system embodiment
As shown in figure 20, be the structural representation of embodiment of the invention speech business switching processing system, the comprising of embodiment of the invention speech business switching processing system: mobile switching centre 81 and access network controller IWF82.
Further, it is that preparation data flow transmission resource is switched in speech business that access network controller can specifically be used for the notification target network, when the speech business data flow was delivered to access network controller, access network controller utilized described data flow transmission resource transmission speech business data flow.Perhaps specifically being used to notify mobile switching centre to switch finishes, mobile switching centre is delivered to access network controller with the speech business data flow, it is that preparation data flow transmission resource is switched in speech business that access network controller triggers objective network, utilizes described data flow transmission resource transmission speech business data flow.
Therefore embodiment of the invention speech business switching processing system is by after receiving handoff request, triggering objective network is that the mode of preparing the data flow transmission resource is switched in speech business, has realized the switching of the speech business from the GERAN/UTRAN network to the E-UTRAN network smoothly.
It should be noted last that, above embodiment is only unrestricted in order to the technical scheme of the explanation embodiment of the invention, although the embodiment of the invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical scheme of the embodiment of the invention, and not break away from the spirit and scope of embodiment of the invention technical scheme.
Claims (19)
1. speech business switching handling method is characterized in that comprising:
Moving exchanging center MSC receives the handoff request that the user sends, know that the user need carry out the speech business switching from the source network to the objective network, wherein source network is a Radio Access Network GERAN/ terrestrial access network UTRAN network, and objective network is long-term evolving network E-UTRAN;
Know the information of the access network controller IWF of described user's registration;
Notify described access network controller that the user is carried out the voice hand-off process.
2. speech business switching handling method according to claim 1, it is characterized in that described method comprises that also described user is in source network initiation packet data protocol activating flow process, be established to the IP tunnel of this access network controller, utilize this IP tunnel to register to access network controller.
3. speech business switching handling method according to claim 1, it is characterized in that comprising before the information of the described access network controller of knowing described user registration: access network element is according to receiving reporting of user access network controller cell information, access network element should obtain Target ID/Cell information according to this access network controller cell information, and report mobile switching centre, then mobile switching centre knows that the information of the access network controller of described user's registration is specially: the information of the access network controller of described user's registration is known in mobile switching centre according to the corresponding relation of pre-configured Target ID/Cell and access network controller.
4. speech business switching handling method according to claim 1, it is characterized in that comprising before the information of the described access network controller of knowing described user registration: access network element receives the access network controller information of user terminal to send up user registration, and access network element sends the access network controller information of described user's registration to the mobile switching centre of described source network.
5. speech business switching handling method according to claim 1, it is characterized in that, described method comprises that also the access network controller of described user's registration is registered to home subscriber server with self, and the access network controller of the then described user's of obtaining registration is specially:
Described mobile switching centre receives the access network controller information of user's registration of described home subscriber server transmission.
6. speech business switching handling method according to claim 5, it is characterized in that described mobile switching centre also comprises before receiving the access network controller information of user's registration that described home subscriber server sends, the mobile switching centre of described source network is to the access network controller information of the described user's registration of home subscriber server request, and described home subscriber server returns the access network controller information of described user's registration to the mobile switching centre of source network.
7. speech business switching handling method according to claim 5, it is characterized in that described mobile switching centre also comprises before receiving the access network controller information of user's registration that described home subscriber server sends: described home subscriber server knows that user contracting data changes, insert subscription data to described mobile switching centre, carry the access network controller information of described user's registration.
8. speech business switching handling method according to claim 1 is characterized in that describedly notifying described access network controller that the user is carried out also comprising after the voice hand-off process:
Access network controller notification target network is that preparation data flow transmission resource is switched in speech business;
When the speech business data flow was delivered to access network controller, access network controller utilized described data flow transmission resource transmission speech business data flow.
9. speech business switching handling method according to claim 8, it is characterized in that describedly notifying described access network controller that the user is carried out the voice hand-off process, access network controller notification target network is that preparation data flow transmission resource is switched in speech business, when the speech business data flow was delivered to access network controller, access network controller utilized described data flow transmission resource transmission speech business data flow specifically to comprise:
The mobile switching centre of source network is addressed to the access network controller of described registration according to the information of the access network controller of knowing described user's registration, and sends handoff request to this access network controller;
Described access network controller triggers the carrying of the proprietary speech business of objective network and sets up flow process according to this handoff request, switches for speech business and prepares the data flow transmission resource;
Described access network controller is notified described mobile switching centre to switch and is finished, this mobile switching centre sends to described access network controller with the speech business data flow, utilizes the described speech business data flow of described data flow transmission resource forwarding by described access network controller.
10. speech business switching handling method according to claim 1 is characterized in that describedly notifying described access network controller that the user is carried out also comprising after the hand-off process:
The switching of access network controller notice mobile switching centre is finished, and mobile switching centre is delivered to access network controller with the speech business data flow, and it is that preparation data flow transmission resource is switched in speech business that access network controller triggers objective network;
Access network controller utilizes described data flow transmission resource transmission speech business data flow.
11. a speech business switch processing device, its feature comprises:
Receiver module, be used for mobile switching centre and receive the handoff request that the user sends, know that the user need carry out the speech business switching from the source network to the objective network, wherein source network is a Radio Access Network GERAN/ terrestrial access network UTRAN network, and objective network is long-term evolving network E-UTRAN;
Know module, be used to know the information of the access network controller of described user's registration;
Notification module is used to notify described access network controller that the user is carried out the voice hand-off process.
12. speech business switch processing device according to claim 11 is characterized in that describedly knowing that module specifically is used for the handoff request that described mobile switching centre receives the access network controller information that comprises described user's registration that access network element sends.
13. speech business switch processing device according to claim 11 is characterized in that describedly knowing that module specifically is used for the access network controller information that described mobile switching centre receives user's registration that described home subscriber server sends.
14. an access network controller is characterized in that comprising:
Receiver module is used to receive the handoff request that mobile switching centre transmits;
Handover module, be used for the user being carried out speech business hand-off process from the source network to the objective network according to described handoff request, wherein source network is a Radio Access Network GERAN/ terrestrial access network UTRAN network, and objective network is long-term evolving network E-UTRAN.
15. access network controller according to claim 14 is characterized in that described handover module further comprises notification unit and transmission unit, wherein:
Described notification unit is used for when receiver module receives the handoff request of mobile switching centre's forwarding, and the notification target network is that preparation data flow transmission resource is switched in speech business;
When receiver module further received described mobile switching centre transmission speech business data flow, described transmission unit was used to utilize described data flow transmission resource transmission speech business data flow.
16. access network controller according to claim 14 is characterized in that: described handover module further comprises notification unit and transmission unit, wherein:
When receiver module further receives described mobile switching centre transmission speech business data flow,
It is that preparation data flow transmission resource is switched in speech business that described notification unit is used for the notification target network; Described transmission unit is used to utilize described data flow transmission resource transmission speech business data flow.
17. a speech business switching processing system is characterized in that comprising:
Mobile switching centre is used to receive the handoff request that the user sends, and knows that the user need carry out the speech business switching from the source network to the objective network, and wherein source network is the GERAN/UTRAN network, and objective network is a long-term evolving network;
Access network controller is used for after receiving the handoff request that described mobile switching centre transmits, and according to described handoff request the speech business that the user carries out from the source network to the objective network is switched.
18. speech business switching processing system according to claim 17, it is characterized in that it is that preparation data flow transmission resource is switched in speech business that described access network controller specifically is used for the notification target network, when the speech business data flow was delivered to access network controller, access network controller utilized described data flow transmission resource transmission speech business data flow.
19. speech business switching processing system according to claim 17, it is characterized in that described access network controller specifically is used to notify mobile switching centre to switch and finishes, mobile switching centre is delivered to access network controller with the speech business data flow, it is that preparation data flow transmission resource is switched in speech business that access network controller triggers objective network, utilizes described data flow transmission resource transmission speech business data flow.
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| WO2012130126A1 (en) * | 2011-03-30 | 2012-10-04 | 中兴通讯股份有限公司 | Switchover control method and system based on ims |
| CN102984756A (en) * | 2012-11-09 | 2013-03-20 | 大唐移动通信设备有限公司 | Downlink signaling message flow processing method and system |
| WO2015117490A1 (en) * | 2014-07-31 | 2015-08-13 | 中兴通讯股份有限公司 | Method and device for establishing bearer |
| CN107493590A (en) * | 2017-06-15 | 2017-12-19 | 罗德祥 | Data transmission method and device, base station and computer-readable recording medium |
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2009
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| WO2012130126A1 (en) * | 2011-03-30 | 2012-10-04 | 中兴通讯股份有限公司 | Switchover control method and system based on ims |
| CN102724723A (en) * | 2011-03-30 | 2012-10-10 | 中兴通讯股份有限公司 | Switchover control method and system thereof based on IMS |
| CN102724723B (en) * | 2011-03-30 | 2017-12-15 | 中兴通讯股份有限公司 | Control switching method and system based on IMS |
| CN102984756A (en) * | 2012-11-09 | 2013-03-20 | 大唐移动通信设备有限公司 | Downlink signaling message flow processing method and system |
| CN102984756B (en) * | 2012-11-09 | 2016-03-02 | 大唐移动通信设备有限公司 | A kind of downlink signaling message flow processing method and system |
| WO2015117490A1 (en) * | 2014-07-31 | 2015-08-13 | 中兴通讯股份有限公司 | Method and device for establishing bearer |
| CN105323806A (en) * | 2014-07-31 | 2016-02-10 | 中兴通讯股份有限公司 | Bearer setup method and device |
| CN105323806B (en) * | 2014-07-31 | 2020-01-14 | 中兴通讯股份有限公司 | Method and device for establishing bearer |
| US10542467B2 (en) | 2014-07-31 | 2020-01-21 | Xi'an Zhongxing New Software Co., Ltd. | Method and device for establishing a bearer |
| CN107493590A (en) * | 2017-06-15 | 2017-12-19 | 罗德祥 | Data transmission method and device, base station and computer-readable recording medium |
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Application publication date: 20101006 |