CN101400049A - Voice service implementing method and system - Google Patents
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- CN101400049A CN101400049A CNA2007101810561A CN200710181056A CN101400049A CN 101400049 A CN101400049 A CN 101400049A CN A2007101810561 A CNA2007101810561 A CN A2007101810561A CN 200710181056 A CN200710181056 A CN 200710181056A CN 101400049 A CN101400049 A CN 101400049A
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Abstract
The invention discloses a voice service accomplishing method comprising following steps: LTE receives voice service of calling party calling the called party; the LTE starts a call to tracking area called party locates and route area binding with tracking area; the LTE accomplishes voice service from the called party to calling party through the tracking area and the route area. The invention also discloses a voice service accomplishing system. When 2G/3G network receives voice service request, 2G/3G network establishes effective user plane load for the voice service. The inventive method and system accomplishes effective load of 2G/3G network for voice service.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of voice service accomplishing method and system.
Background technology
At Wimax (Worldwide Interoperability for Microwave Access, micro-wave access global inter communication) the data rate index of system uplink 50M, descending 100M such as, in order to guarantee the competitiveness of 10 years wireless technologys from now on, 3GPP (3rd Generation Partnership Project, third generation partner plan) normal structure has been released the new generation network evolution items, SAE/LTE (System ArchitectureEvolution/Long Term Evolution, System Architecture Evolution/Long Term Evolution) network evolution.SAE/LTE network evolution items is based on HSDPA (High Speed Downlink Package Access, high-speed downlink packet inserts) since the come down in a continuous line thinking of optimization of network performance, at original HSDPA and EUL (End User Layer, user terminal layer) etc. on the system-based to postponing, the user data digit rate, power system capacity/covering, the further optimization of four aspects such as cost.The network architecture of SAE/LTE evolution system is illustrated in fig. 1 shown below.Wherein the Access Network part E-UTRAN of evolution system (Evolved UMTSTerritorial Radio Access Network, the UMTS Terrestrial radio access network of evolution) is made up of eNB (evolved NodeB, evolution base station); Interconnect by X2 interface between eNB.ENB is responsible for providing to UE the user-plane function (PDCP/RLC/MAC/PHY) and the control plane function (RRC) of evolution wave point
Evolution core net EPC links to each other with eNB by the S1 interface; The S1 interface supports eNB to be connected with multi-to-multi between MME/SAEGateway.The core net part of evolution system is made up of MME (MobilityManagement Entity, mobile management entity) and SAE Gateway two parts.MME is the control plane node of evolution system core net, bears the management function of UE context and user plane carrying; SAE Gateway is the user plane node of evolution system core net, bears user data transport function.
As shown in Figure 1, LTE is the network in a pure PS (Packet Switched, packet switching) territory.The core net of evolution system part do not exist with the 2G/3G system in the corresponding network element of MSC (Mobile servicesSwitching Center, mobile switching centre).Therefore, in the SAE/LTE in future evolution system, user's voice service can only realize by the mode of PS territory carrying with VoIP (Voice over IP, IP phone).Introduce a new problem thus, promptly how to have guaranteed the seamless problem that continue of speech business between LTE evolution system and traditional 2G/3G system.
Can't be directly switch to the particularity of legacy network CS territory carrying from the VoIP of LTE PS territory carrying at speech business, the two step handover schemes that switch in a standard P S territory and VCC (Voice Call Continuity, voice control continuity) territory flow path switch combines have been proposed at present.
LTE＝(PS?Handover)＝>via?2G?PS＝(Domain?Transfer)＝>2G?CS
1) PS switch step
An ongoing VoIP is professional to be needed when the 2G network switches when source eNB adjudicates, and it at first initiates the PS switching flow of standard to target BS C (Base Station Controller, base station controller).Concrete switching flow is shown in Figure 2 as follows.
2) VCC territory translate phase
After PS territory switching flow is finished, GERAN (GSM EDGE Radio Access Network, GSM EDGE Radio Access Network) BSC of network can be according to Target cell ability (DTM (the Dual transfer mode of this time switching, two arq modes), RTTI (Run Time Type Identification, move type identification) etc.) and the present dynamic resource situation, whether judgement is initiated to the territory flow path switch of GERAN CS.For wireless side, the PS territory comes down to the upright process of reconstruction in a CS territory to the territory flow path switch in CS territory.This process is the bearing resource that UE distributes the CS territory, makes network to provide service quality better speech business for UE in the CS territory.Concrete VCC territory flow path switch is seen Fig. 3, comprises the steps:
Step s301, terminal send SETUP message to initiate the originating call flow process of standard to MSC.Carry the called end that the VDN number is this time called out with indication in this message.
Step s302, MSC can be by PSI numbers of VDN number derivation VCC application server by mutual with the CAMEL intelligent network.
Step s303, MSC send initial address message to MGCF (Media Gateway Control Function, MGCF), trigger the terrestrial links bearing resource of setting up between the MGW that MSC and MGCF control.Carry the PSI number of VCC AS in this message, in order to indicate the destination of this call setup.
Step s304, MGCF are to the ownership IMS of terminal (IP Multimedia Subsystem, the IP multimedia system) I-CSCF in the network (Interrogating-Call Session Control Function, consultation call conversation control function) sends INVITE.
Step s305, I-CSCF transmit this INVITE to trigger the territory flow path switch to VCC AS.
Step s306, DTF function executing territory translation function: promptly, notify the link information of newly-established CS access tributary to distant terminal by sending Re-INVITE message to distant terminal.
Step s307, DTF function discharge original PS territory access tributary.
The shortcoming of prior art is: though present VCC scheme has solved the voice business continuity problem in LTE to the GERAN handoff procedure, proposed solution.But under the mobile terminating scene, the GERAN network is the problem of carrying VoIP session effectively, does not propose corresponding solution
Summary of the invention
Embodiments of the invention provide a kind of voice service accomplishing method and system, are used for realizing from LTE network VoIP speech business at existing 2G/3G network.
For achieving the above object, embodiments of the invention provide a kind of voice service accomplishing method, may further comprise the steps:
Long Term Evolution net LTE receives the speech business of originated call called end;
Described LTE makes a call to the tracking area at described called end place and with the route district of described tracking area binding;
Described LTE realizes the voice service of described called end to described originating end by described tracking area and described route district.
Embodiments of the invention also provide a kind of realization system of voice service, comprising:
LTE network controls entity when being used to receive the speech business of originated call called end, makes a call to the tracking area at described called end place and with the route district of described tracking area binding;
The tracking area controlled entity is used for the calling according to LTE network controls entity, seeks described called end in tracking area, to realize described voice service;
Route district controlled entity is used for the calling according to LTE network controls entity, seeks described called end in the route district, to realize described voice service.
Compared with prior art, embodiments of the invention have the following advantages:
Under the mobile terminating scene, after the 2G/3G network is received the VoIP voice service request, set up effective user plane carrying in 2G/3G CS territory for this speech business, realized of the effective carrying of 2G/3G network to speech business.
Description of drawings
Fig. 1 is the Organization Chart of LTE evolvement network in the prior art;
Fig. 2 is the switching flow figure in PS territory in the prior art;
Fig. 3 is the flow path switch figure in VCC territory in the prior art;
Fig. 4 is a voice service accomplishing method flow chart in the embodiments of the invention one;
Fig. 5 is another flow chart of voice service accomplishing method in the embodiments of the invention one;
Fig. 6 is a voice service accomplishing method flow chart in the embodiments of the invention two;
Fig. 7 is a voice service accomplishing method flow chart in the embodiments of the invention three;
Fig. 8 is a voice service accomplishing method flow chart in the embodiments of the invention four;
Fig. 9 is a voice service accomplishing system structural representation in the embodiments of the invention five.
Embodiment
Under the network coexisted scene of LTE network and traditional GERAN/UTRAN (2G/3G) because TA (Tracking Area, the tracking area) coverage of LTE network is less, its often with RA (Route Area, the route district) binding of 2G/3G network.Therefore as UE during at LTE and GERAN internetwork roaming, owing to network can't be definite the position of knowing UE, so network is after receiving the VoIP service request of opposite end, must initiate paging simultaneously at LTE and GERAN or UTRAN.At this moment, if UE is in the LTE network, then can directly accept this time to call out; If UE (User Equipment, subscriber equipment) is under the covering of 2G/3G, owing to the PS territory of 2G/3G can't effectively be carried, therefore in order to guarantee normally carrying out of speech business, network must be with CS (Circuit Switched, the circuit commutative field) territory of this time session redirection to 2G/3G.
In the embodiments of the invention,, in tracking area TA and route district RA, realize the voice service of called end to originating end by in tracking area TA and route district RA, making a call simultaneously.
In the embodiments of the invention one, a kind of voice service accomplishing method has been proposed.Being arranged in the GERAN network with user terminal is example, and its principle is: receive to the VoIP affair request of LTE network when the GERAN network, it at first sets up flow process to the PS territory business of UE initiation standard.After the professional foundation of VoIP is finished, initiate the VCC flow process of standard again by UE, this time speech business is converted to the CS territory by the PS territory.Concrete flow process See Figure 4.
Step s401.MME/UPE (Mobility Management Entity/User Plane Entity, mobile management entity/user entity) receives SIP (Session Initiation Protocol, session initiation protocol) the message INVITE that IMS sends.
After step s402.MME/UPE receives INVITE, all the eNB broadcast paging messages to corresponding UE (User Equipment, subscriber equipment) place TA (Tracking Area, tracking area) district; ENB receives behind the beep-page message eating dishes without rice or wine and transmits.
When eNB transmitted beep-page message, MME/UPE transmitted beep-page message to the pairing SGSN in RA district (Serving GPRS support node, Serving GPRS Support Node) with the binding of TA district, UE place to step s403. at MME/UPE; SGSN distinguishes paging by BSC (Base StationController, base station controller) at whole RA (Route Area, route district) after receiving beep-page message.
RR (RadioResource, Radio Resource) between step s404.MS (Mobile Station, portable terminal) foundation and BSC connects, and feeds back page-response message by the wireless connections of setting up to SGSN.
Step s405.SGSN transmits paging effect message to MME/UPE, and indication MME/UPE called UE is positioned at the GERAN network side.MME/UPE stops at the paging of LTE network side.
Step s406.SGSN (Serving GPRS support node, Serving GPRS Support Node) initiates user's face in PS territory and sets up flow process.
Step s407. is after user plane bearer foundation in the PS territory of step s406 is finished, and MME/UPE is forwarded to UE with its INVITE of receiving.
Step s408.UE sends SIP (Session Initiation Protocol, session initiation protocol) 183 feedback messages to IMS.
Step s409.IMS sends SIP PRACK message to UE, the information such as encoding and decoding that notice UE opposite end UE is supported.
Step s410.UE selects in the scope that PRACK message provides according to the ability of self, and the information such as encoding and decoding that it is selected are given IMS by the SIPOK message feedback.
Step s411.UE determines the required QoS of this time voip conversation (Quality of Service, service quality) information according to its selected information such as encoding and decoding.And, trigger the required user plane bearer of voip conversation to SGSN transmission activation time PDP (Packet DateProtocol, packet data protocol) context request.
Step s412. SGSN carries out possible security process.
Step s413. SGSN sends to MME/UPE and creates the PDP Context request, in order to set up the ground loading of user's face.
Step s414. MME/UPE sends feedback message to SGSN.
Step s415. SGSN initiates PFC (Packet Flow Context, packet flow context) set up flow process, in this flow process, BSC is if need be converted to GERAN CS according to factors such as sub-district present dynamic condition judgement UE, and then it can be indicated to SGSN feedback field transition trigger.
After step s416. SGSN receives that message is finished in PFC foundation, send the activation PDP Context to UE and finish message.Carry territory transition trigger indication in this message.
Step s417. UE receives the UPDATE message that IMS transmits, and this message has been indicated the final information of selecting such as encoding and decoding of opposite end UE.
Step s418. UE is to IMS feedback SIP OK message.
Step s419. this moment is because whole end-to-end user plane bearer is set up finishes, so called UE begins ring, and UE is to the ALERTING message of IMS feedback simultaneously, indication current UE state.
Step s420. called UE off-hook, this moment, UE sent ANSWER message to IMS, and indication UE is off-hook.
Step s421. IMS is to UE feeding back ACK message, and indication opposite end UE has received the off-hook instruction of UE.This moment, user's face was communicated with, and voip conversation begins.
Step s422. is owing among the step s416, and UE has received DT (Domain Transfer, territory conversion) the territory conversion indication that network issues, and therefore after voip conversation foundation was finished, UE had initiated the VCC territory flow path switch of standard.
In the flow path switch of the territory of previous embodiment one, as if the user-plane resources of having distributed PS territory and CS territory simultaneously at step s415, after voip conversation foundation is finished, UE can directly utilize the CS carrying of having set up, initiate GERAN CS voice call request message, shorten the conversation time that the territory transfer process is introduced effectively.Concrete flow process is illustrated in fig. 5 shown below.
Step s501. MME/UPE receives the sip message INVITE that IMS sends.
After step s502. MME/UPE receives INVITE, all the eNB broadcast paging messages to TA district, corresponding UE place; ENB receives behind the beep-page message eating dishes without rice or wine and transmits.
When eNB transmitted beep-page message, MME/UPE transmitted beep-page message to the pairing SGSN in RA district with the binding of TA district, UE place to step s503. at MME/UPE; SGSN receives behind the beep-page message by BSC in whole RA district's paging.
Step s504. MS set up with BSC between RR be connected, and feed back page-response message to SGSN by the wireless connections of setting up.
Step s505. SGSN transmits paging effect message to MME/UPE, and indication MME/UPE called UE is positioned at the GERAN network side.MME/UPE stops at the paging of LTE network side.
Step s506. SGSN initiates user's face in PS territory and sets up flow process.
Step s507. is after user plane bearer foundation in the PS territory of step s506 is finished, and MME/UPE is forwarded to UE with its INVITE of receiving.
Step s508. UE sends the SIP183 feedback message to IMS.
Step s509. IMS sends SIP PRACK message to UE, the information such as encoding and decoding that notice UE opposite end UE is supported.
Step s510. UE selects in the scope that PRACK message provides according to the ability of self, and the information such as encoding and decoding that it is selected are given IMS by SIP OK message feedback.
Step s511. UE determines the QoS information that this time voip conversation is required according to its selected information such as encoding and decoding.And, trigger the required user plane bearer of voip conversation to SGSN transmission activation time PDP Context request.
Step s512. SGSN carries out possible security process.
Step s513. SGSN sends to MME/UPE and creates the PDP Context request, in order to set up the ground loading of user's face.
Step s514. MME/UPE sends feedback message to SGSN.
Step s515. SGSN triggers the flow process of setting up of PS territory wireless side user plane carrying.In this process, BSC is according to the factors such as dynamic condition of current area, and judgement UE should be converted to GERAN CS territory.Therefore, BSC has distributed the chain of command signaling bear in CS territory for UE when setting up PS territory user plane bearing resource.After UE had received the assignment information of CS territory resource, confirming needed to initiate the VCC flow process after the professional foundation of VoIP is finished.
After step s516. SGSN receives that message is finished in carrying foundation, send the activation PDP Context to UE and finish message.
Step s517. UE receives the UPDATE message that IMS transmits, and this message has been indicated the final information of selecting such as encoding and decoding of opposite end UE.
Step s518. UE is to IMS feedback SIP OK message.
Step s519. this moment is because whole end-to-end user plane bearer is set up finishes, so called UE begins ring, and UE is to the ALERTING message of IMS feedback simultaneously, indication current UE state.
Step s520. called UE off-hook, this moment, UE sent ANSWER message to IMS, and indication UE is off-hook.
Step s521. IMS is to UE feeding back ACK acknowledge message, and indication opposite end UE has received the off-hook instruction of UE.This moment the user face together with, voip conversation begins.
Step s522. is because among the step s516, UE has received the DT territory conversion indication that network issues, and therefore after voip conversation foundation was finished, UE had initiated the VCC territory flow path switch of standard.
Another voice service accomplishing method has been proposed in the embodiment of the invention two.Its principle is: for the voip conversation territory shift scene under the mobile terminating scene, can adopt in beep-page message and to add VCC session mode such as instigate and notify BSC current conversation type of carrying out, thereby make BSC initiate the territory flow path switch in advance, do not finish to initiate again and do not need the session in PS territory by the time to set up, thus user's face resource of saving the PS territory effectively.Concrete flow process is illustrated in fig. 6 shown below.
Step s601. MME/UPE receives the sip message INVITE that IMS sends.
After step s602. MME/UPE receives INVITE, all the eNB broadcast paging messages to TA district, corresponding UE place; ENB receives behind the beep-page message eating dishes without rice or wine and transmits.
When eNB transmitted beep-page message, MME/UPE transmitted beep-page message to the pairing SGSN in RA district with the binding of TA district, UE place to step s603. at MME/UPE; SGSN receives behind the beep-page message by BSC in whole RA district's paging.MME/UPE can infer according to the information such as type of service in the INVITE, this service request of receiving is a voip conversation, therefore MME/UPE is adding the VoIP indication in the middle of the message of transmitting to SGSN, is VoIP business based on VCC in order to notice BSC session this time.
Step s604. is after UE receives the beep-page message that the GERAN network sends, and it sends packet channel request message to BSC, and request is set up it and is connected with wireless signaling between BSC.
Step s605. BSC sends packet uplink assignment message to UE, and carrying BSC in the message is the Signaling Radio Bearer resource information that UE distributes.
After step s606. UE receives packet uplink assignment message, dispose its wave point, and connect to network and send page-response message by setting up good wireless signaling according to wherein Signaling Radio Bearer resource information.
Step s607. BSC receives the paging effect message that UE sends, and can determine that the UE of transmission page response is the called UE of this VoIP terminating call according to UE sign wherein.BSC initiates to be redirected flow process according to the factors such as dynamic condition of UE place current area at this moment, and indication UE reselects to GERANCS and carries out the CS speech business, and finishes the position renewal in CS territory.
Step s608. BSC initiates to be redirected between core network domain flow process, and notice IMS initiates the terminating call flow process in CS territory.
Step s609. IMS sends INVITE to MGCF, triggers the terminating call flow process in CS territory.
Step s610. MGCF (Media Gateway Control Function, Media Gateway Controller) sends SIP 183 feedback messages to IMS.
Step s611. IMS sends SIP PRACK message to MGCF, the information such as encoding and decoding that notice UE opposite end UE is supported.
Step s612. MGCF selects in the scope that PRACK message provides according to the ability of its corresponding MGW (Media Gateway, media gateway), and the information such as encoding and decoding that it is selected are given IMS by the SIPOK message feedback.
Step s613. MGCF sends IAM message to target MSC (MSC Main Switching Center, main switching centre), triggers wireless side and sets up flow process.Trigger the terrestrial links between the target MSC foundation MGW corresponding simultaneously with MGCF.After terrestrial links had been set up, target MSC was to MGCF feedback ACM message.
Step s614. MSC sends beep-page message by BSC to UE.
Step s615. UE sends page response to MSC.
Step s616. MSC sends SETUP message to UE, triggers the distribution of wireless side resource.
Step s617. UE accepts to network-feedback CALL PROCEEDING message indication SETUP request.
CS territory wireless side bearing resource is set up at step s618. MSC and UE two ends.
Step s619. is in the process that the wireless side resource is set up, and MGCF can receive the UPDATE message that IMS transmits, and this message has been indicated the final information of selecting such as encoding and decoding of opposite end UE.
Step s620. MGCF is to IMS feedback SIP OK message.
Step s621. this moment is because whole end-to-end user plane bearer is set up finishes, so called UE begins ring, and UE is to the ALERTING message of IMS feedback simultaneously, indication current UE state.
Step s622. called UE off-hook, this moment, UE sent ANSWER message to IMS, and indication UE is off-hook.
Provide another kind of voice service accomplishing method in the embodiments of the invention three, comprised the territory flow path switch under the mobile terminating scene.Wherein BSC directly carries out the access control judgement after receiving the beep-page message that SGSN sends.If voip conversation can't be carried out in the sub-district that BSC issues, then directly in beep-page message, add and be redirected indication, force UE to change GERAN CS over to and carry out speech business.This flow process may further comprise the steps as shown in Figure 7:
Step s701. MME/UPE receives the sip message INVITE that IMS sends.
After step s702. MME/UPE receives INVITE, all the eNB broadcast paging messages to TA district, corresponding UE place; ENB receives behind the beep-page message eating dishes without rice or wine and transmits.
When eNB transmitted beep-page message, MME/UPE transmitted beep-page message to the pairing SGSN in RA district with the binding of TA district, UE place to step s703. at MME/UPE; SGSN receives behind the beep-page message by BSC in whole RA district's paging.MME/UPE can infer according to the information such as type of service in the INVITE, this service request of receiving is a voip conversation, therefore MME/UPE is adding the VoIP indication in the middle of the message of transmitting to SGSN, is VoIP business based on VCC in order to notice BSC session this time.
Step s704. BSC identifies as can be known this time according to the VoIP in the beep-page message of SGSN transmission, and terminating call is voip call.BSC should be redirected to GERAN CS according to its ability configuration and present dynamic condition judgement UE.
Step s705. BSC sends beep-page message to UE, carries VoIP indication in the message, be VoIP business based on VCC in order to notice BSC session this time, and is redirected indication, carries out speech business in order to indicate UE to reselect to GERAN CS.BSC also can select only to send the VoIP indication, and the next UE of requirement of this scene receives based on the called request back of VCC and forces to be converted to the CS territory without exception.
Step s706. UE initiates the position and upgrades, and the called signaling that CS access process such as authentication, informing network keep the RR connection to be used for follow-up speech business connects.
Step s707. BSC initiates to be redirected between core network domain flow process, and notice IMS initiates the terminating call flow process in CS territory.
Step s708. IMS sends INVITE to MGCF, triggers the terminating call flow process in CS territory.
Step s709. MGCF sends SIP 183 feedback messages to IMS.
Step s710. IMS sends SIP PRACK message to MGCF, the information such as encoding and decoding that notice UE opposite end UE is supported.
Step s711. MGCF selects in the scope that PRACK message provides according to the ability of its corresponding MGW, and the information such as encoding and decoding that it is selected are given IMS by SIP OK message feedback.
Step s712. MGCF sends IAM message to target MSC, triggers wireless side and sets up flow process.Trigger the terrestrial links between the target MSC foundation MGW corresponding simultaneously with MGCF.After terrestrial links had been set up, target MSC was to MGCF feedback ACM message.
Step s713. MSC sends SETUP message to UE, triggers the distribution of wireless side resource.
Step s714. UE accepts to network-feedback CALL PROCEEDING message indication SETUP request.
CS territory wireless side bearing resource is set up at step s715. MSC and UE two ends.
Step s716. is in the process that the wireless side resource is set up, and MGCF can receive the UPDATE message that IMS transmits, and this message has been indicated the final information of selecting such as encoding and decoding of opposite end UE.
Step s717. MGCF is to IMS feedback SIP OK message.
Step s718. this moment is because whole end-to-end user plane bearer is set up finishes, so called UE begins ring, and UE is to the ALERTING message of IMS feedback simultaneously, indication current UE state.
Step s719. called UE off-hook, this moment, UE sent ANSWER message to IMS, and indication UE is off-hook.
Provide another kind of voice service accomplishing method in the embodiments of the invention four, comprised the territory flow path switch under the mobile terminating scene.Wherein MME/UPE is after receiving the SIP INVITE that IMS sends, and it directly initiates the core network domain flow path switch when LTE network initiation termination business is set up flow process, and notice IMS initiation CS terminates and sets up flow process.Concrete flow process is illustrated in fig. 8 shown below.
Step s801. MME/UPE receives the sip message INVITE that IMS sends.
After step s802. MME/UPE receives INVITE, all the eNB broadcast paging messages to TA district, corresponding UE place; ENB receives behind the beep-page message eating dishes without rice or wine and transmits.
The service request that step s803. MME/UPE judgement is received is the VoIP service request, and therefore judgement initiates to be redirected flow process.
Step s804. MME/UPE initiates to be redirected between core network domain flow process, and notice IMS initiates the terminating call flow process in CS territory.
Step s805. IMS sends INVITE to MGCF, triggers the terminating call flow process in CS territory.
Step s806. MGCF sends the SIP183 feedback message to IMS.
Step s807. IMS sends SIP PRACK message to MGCF, the information such as encoding and decoding that notice UE opposite end UE is supported.
Step s808. MGCF selects in the scope that PRACK message provides according to the ability of its corresponding MGW, and the information such as encoding and decoding that it is selected are given IMS by SIP OK message feedback.
Step s809. MGCF sends IAM message to target MSC, triggers wireless side and sets up flow process.Trigger the terrestrial links between the target MSC foundation MGW corresponding simultaneously with MGCF.After terrestrial links had been set up, target MSC was to MGCF feedback ACM message.
Step s810. MSC sends beep-page message by BSC to UE.
Step s811. UE sends page response to MSC.
Step s812. MSC sends SETUP message to UE, triggers the distribution of wireless side resource.
Step s813. UE accepts to network-feedback CALL PROCEEDING message indication SETUP request.
CS territory wireless side bearing resource is set up at step s814. MSC and UE two ends.
Step s815. is in the process that the wireless side resource is set up, and MGCF can receive the UPDATE message that IMS transmits, and this message has been indicated the final information of selecting such as encoding and decoding of opposite end UE.
Step s816. MGCF is to IMS feedback SIP OK message.
Step s817. this moment is because whole end-to-end user plane bearer is set up finishes, so called UE begins ring, and UE is to the ALERTING message of IMS feedback simultaneously, indication current UE state.
Step s818. called UE off-hook, this moment, UE sent ANSWER message to IMS, and indication UE is off-hook.
The method that the application of the invention provides under the mobile terminating scene, after the 2G/3G network is received voice service request, is set up effective user plane carrying for this speech business, has realized the effective carrying of 2G/3G network to speech business.
A kind of voice service accomplishing system is provided in the embodiments of the invention five, has comprised:
LTE network controls entity 10 when being used to receive the speech business of originated call called end, makes a call to the tracking area at this called end place and with the route district of this tracking area binding.
Tracking area controlled entity 20 is used for the calling according to LTE network controls entity, seeks this called end in tracking area, to realize this voice service.
Route district controlled entity 30 is used for the calling according to LTE network controls entity, seeks this called end in the route district, to realize this voice service.
Wherein, this route district controlled entity 30 further comprises: PS territory, route district controlled entity 31 and CS territory, route district controlled entity 32, this PS territory, route district controlled entity 31 and CS territory, route district controlled entity 32 are by working in coordination, called end in the route district is converted to the CS territory from the PS territory, make called end set up carrying in the CS territory, realize this speech business.
System that the application of the invention provides and equipment, under the mobile terminating scene, after the 2G/3G network is received the VoIP voice service request, set up effective user plane carrying in 2G/3G CS territory for this speech business, realized of the effective carrying of 2G/3G network to speech business.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprises that some instructions are with so that the equipment in network is carried out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (10)
1, a kind of implementation method of voice service is characterized in that, may further comprise the steps:
Long Term Evolution net LTE receives the speech business of originated call called end;
Described LTE makes a call to the tracking area at described called end place and with the route district of described tracking area binding;
Described LTE realizes the voice service of described called end to described originating end by described tracking area and described route district.
2, the implementation method of voice service according to claim 1 is characterized in that, described 2G/3G network also comprises step before receiving speech business from called end in the originated call present networks:
The route district of 2G/3G network and the tracking area of LTE are bound.
3, the implementation method of voice service according to claim 1 is characterized in that described LTE realizes that by described tracking area and described route district described called end specifically comprises to the step of the speech business of described originating end:
The called end of the SGSN in described route district in network initiated PS territory user plane bearer and set up flow process;
After described user plane bearer was set up and finished, described called end triggers set up the required user plane bearer of described voice service;
Described route district is converted to the CS territory with described called end by the PS territory;
Described called end is set up carrying in the CS territory, realize described speech business.
4, as the implementation method of voice service as described in the claim 3, it is characterized in that described route district is specially described called end by the step that the PS territory is converted to the CS territory:
The SGSN in described route district triggers the flow process of setting up of PFC;
Described BSC is according to sub-district, described called end place present dynamic condition, and judgement need be converted to the CS territory by the PS territory with described called end;
Described BSC indicates to described SGSN feedback field transition trigger;
Described SGSN sends territory transition trigger indication to described called end.
5, as the implementation method of voice service as described in the claim 3, it is characterized in that described route district is specially described called end by the step that the PS territory is converted to the CS territory:
The SGSN in described route district triggers the flow process of setting up of PFC;
Described BSC is according to sub-district, described called end place present dynamic condition, and judgement need be converted to the CS territory by the PS territory with described called end;
Described BSC is that described called end is set up PS territory user plane bearer, is that described called end distributes the carrying of CS territory simultaneously;
Called end is initiated the VCC flow process, realizes that the step of described speech business is specially:
Described called end directly utilizes the CS territory carrying of described distribution, initiates CS territory voice call request message, realizes described speech business.
6, the implementation method of voice service according to claim 1 is characterized in that, described LTE carries the conversation type of described business in the message related to calls that described route district initiates;
Described LTE realizes that by described tracking area and described route district described called end specifically comprises to the step of the speech business of described originating end:
The BSC in described route district receives the Indication message that carries conversation type that described route district SGSN sends;
Described BSC sends the paging request to described called end;
Described BSC receives the page response of described called end, in advance is initiated to the territory flow path switch in CS territory to described called end according to configuration of the ability of described called end current area and current dynamic condition, and the session of not waiting until the PS territory is set up and finished initiation again;
Described called end is set up carrying in the CS territory, realize described speech business.
7, the implementation method of voice service according to claim 1 is characterized in that, described LTE carries the conversation type of described business in the message related to calls that described route district initiates;
Described LTE realizes that by described tracking area and described route district described called end specifically comprises to the step of the speech business of described originating end:
The BSC in described route district receives the Indication message that carries conversation type that described route district SGSN sends;
Described BSC is initiated to the territory flow path switch in CS territory to described called end in advance according to self-ability configuration and current dynamic condition, and does not wait until that the session foundation in PS territory finishes to initiate again;
Described called end is set up carrying in the CS territory, realize described speech business.
8, the implementation method of voice service according to claim 1 is characterized in that described LTE is specially to the step that described route district makes a call:
Described LTE judges when described service request is speech business, directly initiates the call flow in CS territory, route district termination;
Described LTE realizes that by described tracking area and described route district described called end is specially to the step of the voice service of described originating end:
Described LTE triggers the terminating call flow process in CS territory, described route district;
Described called end is set up carrying in the CS territory, realize described speech business.
9, a kind of realization system of voice service is characterized in that, comprising:
LTE network controls entity when being used to receive the speech business of originated call called end, makes a call to the tracking area at described called end place and with the route district of described tracking area binding;
The tracking area controlled entity is used for the calling according to LTE network controls entity, seeks described called end in tracking area, to realize described voice service;
Route district controlled entity is used for the calling according to LTE network controls entity, seeks described called end in the route district, to realize described voice service.
10, as the realization system of voice service as described in the claim 9, it is characterized in that described route district controlled entity further comprises:
Route district PS territory controlled entity and CS territory, route district controlled entity, described route district PS territory controlled entity and CS territory, route district controlled entity are by working in coordination, called end in the route district is converted to the CS territory from the PS territory, makes called end set up carrying in the CS territory, realize described speech business.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101810561A CN101400049B (en) | 2007-09-29 | 2007-09-29 | Voice service implementing method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101810561A CN101400049B (en) | 2007-09-29 | 2007-09-29 | Voice service implementing method and system |
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| CN101400049A true CN101400049A (en) | 2009-04-01 |
| CN101400049B CN101400049B (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101810561A Expired - Fee Related CN101400049B (en) | 2007-09-29 | 2007-09-29 | Voice service implementing method and system |
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| CN (1) | CN101400049B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143585A (en) * | 2010-01-29 | 2011-08-03 | 上海华为技术有限公司 | Channel distribution method, base station controller and mobile station |
| CN103069785A (en) * | 2010-08-11 | 2013-04-24 | 株式会社Ntt都科摩 | Mobile unit, communication control device, and communication control method |
| CN103428894A (en) * | 2013-07-30 | 2013-12-04 | 中国联合网络通信集团有限公司 | Loading path establishing method, device and system |
| CN105264958A (en) * | 2014-01-10 | 2016-01-20 | 华为技术有限公司 | Method and device for bearing circuit switched domain voice service |
| WO2017049643A1 (en) * | 2015-09-25 | 2017-03-30 | 华为技术有限公司 | Service processing method and apparatus |
| CN111327579A (en) * | 2018-12-17 | 2020-06-23 | 中国移动通信集团北京有限公司 | Method and equipment for judging user call state |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100474854C (en) * | 2006-01-10 | 2009-04-01 | 华为技术有限公司 | Method and network system for selecting called continued network |
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2007
- 2007-09-29 CN CN2007101810561A patent/CN101400049B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143585A (en) * | 2010-01-29 | 2011-08-03 | 上海华为技术有限公司 | Channel distribution method, base station controller and mobile station |
| CN103069785A (en) * | 2010-08-11 | 2013-04-24 | 株式会社Ntt都科摩 | Mobile unit, communication control device, and communication control method |
| CN103069785B (en) * | 2010-08-11 | 2014-04-09 | 株式会社Ntt都科摩 | Mobile unit, communication control device, and communication control method |
| CN103428894A (en) * | 2013-07-30 | 2013-12-04 | 中国联合网络通信集团有限公司 | Loading path establishing method, device and system |
| CN103428894B (en) * | 2013-07-30 | 2016-03-23 | 中国联合网络通信集团有限公司 | Bearer path method for building up, Apparatus and system |
| CN105264958A (en) * | 2014-01-10 | 2016-01-20 | 华为技术有限公司 | Method and device for bearing circuit switched domain voice service |
| CN105264958B (en) * | 2014-01-10 | 2019-08-13 | 华为技术有限公司 | A kind of method and device of bearer circuit voice service |
| WO2017049643A1 (en) * | 2015-09-25 | 2017-03-30 | 华为技术有限公司 | Service processing method and apparatus |
| US10485047B2 (en) | 2015-09-25 | 2019-11-19 | Huawei Technologies Co., Ltd. | Service processing method and apparatus |
| CN111327579A (en) * | 2018-12-17 | 2020-06-23 | 中国移动通信集团北京有限公司 | Method and equipment for judging user call state |
| CN111327579B (en) * | 2018-12-17 | 2022-05-13 | 中国移动通信集团北京有限公司 | Method and equipment for judging user call state |
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| CN101400049B (en) | 2012-03-07 |
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