CN101800961A - Method and device for maintaining voice business continuance and communication system - Google Patents
Method and device for maintaining voice business continuance and communication system Download PDFInfo
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Abstract
The embodiment of the invention discloses a method and a device for maintaining voice business continuance and a communication system. The method comprises the steps of: obtaining a terminal requirement for voice switching by an MME (Mobile Management Entity); acquiring a voice treatment mode adopted by a terminal needing switching in a source network; and initiating voice bearing switching to a target network by adopting a voice treatment mode adopted by the terminal. The invention ensures that a network side can acquire the voice treatment mode adopted by the terminal, thereby initiating the voice bearing switching process to the target network by the voice treatment mode adopted by the terminal, maintaining the continuance of the voice business, and improving the user experience.
Description
Technical field
The present invention relates to wireless communication field, especially relate to a kind of method, device and communication system that keeps voice business continuity.
Background technology
User terminal (UE) and network side can support circuit domain business to insert (CS domain services over evolved PS access by the packet domain of evolution, CSoPS) and single connecting system voice continuity (Single Radio Voice Call Continuity, SRVCC) two kinds of speech processes modes.Therefore, when the terminal with two kinds of speech processes abilities moved to the network of supporting two kinds of speech processes modes, the speech business of terminal can adopt CSoPS or SRVCC speech processes mode to realize.For example from terminal by Long Term Evolution (Long Term Evolution, LTE) network switches to land radio access web (UMTS Territorial Radio Access Network, UTRAN) or GSM (GPRS)/EDGE Radio Access Network (GSM (GPRS)/EDGE Radio Access Network, the circuit domain of GERAN (Circuit switch, CS) time, the speech business of terminal can be adopted any realization in CSoPS or the SRVCC speech processes mode.
CSoPS speech processes mode is that a kind of (Evolved PacketSwitching EPS) inserts the CS core net, and the technology of CS business (as the CS voice) is provided for terminal by evolution packet network.When UE carried out the CSoPS speech business, MME was by (Interworking Function IWF) goes up realization CSoPS phonetic function to the interactive function that connects UE, EPS network and CS equipment of the core network with the UE voice call transfer.
Then (IP MultimediaSubsystem, IMS) network carries out SRVCC speech processes mode, is about to audio call and is anchored on the IMS territory based on internet protocol multimedia subsystem.When UE carries out the SRVCC speech business, MME with audio call from EPS switch to mobile switching centre (Mobile SwitchCenter, MSC) and continue to be anchored on the IMS territory.
In research and practice process to prior art, the inventor finds that there is following problem in prior art:
When the terminal with two kinds of speech processes abilities is switched between the network of supporting above-mentioned two kinds of speech processes modes, in two kinds of speech processes abilities that terminal may be taked to be supported any one, therefore the base station (eNodeB) of evolution can not learn before switching that terminal takes any speech processes mode in the network, thereby can't learn the switching flow which kind of speech processes mode this adopts, cause the speech business handoff failure, influence the continuity of speech business.Be that present network can only support a kind of speech processes mode to exist, the speech business in the time of can not handling two kinds and above speech processes mode and coexist makes it keep continuity.For example, adopting CSoPS speech processes mode in terminal, is the carrying switching flow of SRVCC speech processes mode and network side carries out, the failure that then must cause voice bearer to switch.
Summary of the invention
The technical problem that the embodiment of the invention will solve provides a kind of method, device and communication system that keeps voice business continuity, make no matter to have only a kind of speech processes mode still be the network that exists of multiple speech processes mode and terminal and carrying out after network switches, the speech processes mode that the terminal of can knowing network side adopts, thereby initiate corresponding voice bearer switching flow to objective network, the continuity that keeps speech business improves user experience.
For solving the problems of the technologies described above, embodiment provided by the present invention is achieved through the following technical solutions:
A kind of method that keeps voice business continuity comprises:
Mobility Management Entity MME knows that terminal need carry out voice and switch;
Know the speech processes mode that terminal that described needs switch is adopted in source network;
The speech processes mode that adopts described terminal to adopt is initiated the voice bearer switching to objective network.
A kind of method that keeps voice business continuity comprises:
The speech processes mode that terminal is adopted is known in the base station of evolution in source network;
When voice bearer need switch, send the switching indication to MME, the speech processes mode that described terminal adopts at source network is carried in described switching indication, and indication MME switches to adopt the speech processes mode that is adopted with described terminal to initiate voice bearer to objective network.
A kind of Mobility Management Entity comprises:
Know speech processes mode unit, be used for knowing that terminal need carry out after voice switch, know the speech processes mode that terminal that described needs switch is adopted in source network;
Switch unit is used for the speech processes mode of knowing that according to described speech processes mode unit is known, adopts the speech processes mode that is adopted with described terminal to initiate voice bearer to objective network and switches.
A kind of base station of evolution comprises:
Know the unit, be used for knowing that the terminal that need switch is in speech processes mode that source network adopted;
Transmitting element, voice bearer is used for when need switch, according to the described speech processes mode of knowing that speech processes mode unit is known, send the switching indication to Mobility Management Entity, the speech processes ability that the objective network side is supported is carried in described switching indication, and the indication Mobility Management Entity is initiated voice bearer in the speech processes mode that described terminal was adopted to objective network and switched.
By technique scheme as can be seen, the embodiment of the invention is initiated voice bearer in the speech processes mode that described terminal was adopted to objective network and is switched according to the speech processes mode that terminal adopted.The speech processes mode that the terminal of can learning network side adopts, thus the voice bearer switching flow initiated in the speech processes mode that described terminal was adopted to objective network, keep the continuity of speech business, improve user experience.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the network architecture schematic diagram of CSoPS speech processes mode;
Fig. 2 is the network architecture schematic diagram of SRVCC speech processes mode;
Fig. 3 is the method flow schematic diagram of the embodiment of the invention one;
Fig. 4 is the method flow schematic diagram of the embodiment of the invention two;
Fig. 5 is the method flow schematic diagram of the embodiment of the invention three;
Fig. 6 is the method flow schematic diagram of the embodiment of the invention four;
Fig. 7 is the method flow schematic diagram of the embodiment of the invention five;
Fig. 8 is the method flow schematic diagram of the embodiment of the invention six;
Fig. 9 is the method flow schematic diagram of the embodiment of the invention seven;
Figure 10 is the structural representation of embodiment of the invention Mobility Management Entity;
Figure 11 is another structural representation of embodiment of the invention Mobility Management Entity;
Figure 12 is the structural representation of the base station of embodiment of the invention evolution;
Figure 13 is the structural representation of embodiment of the invention communication system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The network architecture diagram of CSoPS speech processes mode can be as shown in Figure 1, eNodeB, Mobility Management Entity (Mobility Management Entity, MME), gateway (Serving Gateway, S-GW)/(Packet Data Network Gateway P-GW) is network entity in the EPS network to grouped data network gateway.ENodeB provides air interface resource management and Base Station Control Function; MME provides authentication, encryption and mobile management to UE; S-GW/P-GW is the data gateway of EPS network, and both also can close and establish.The CSoPS technology has increased an IWF (Inter-WorkingFunction) entity on this network architecture, connect UE, EPS network and CS equipment of the core network.IWF analog wireless networks controller (Radio Network Controller, RNC) or base station controller (Base StationController, BSC) function provide the A/Iu interface of standard to CS core net MSC; IWF simulation application function (Application Function, (Policy Charging Rules Function PCRF) links to each other AF) to provide Rx interface and "Policy and Charging Rules Function; IWF is connected to the P-GW of EPS network by the SGi interface, the EPS carrying that the Z1 reference point between UE and the IWF promptly provides based on the EPS network; In order to satisfy the needs that switch, the Z2 interface that also provides between MME and the IWF is to transmit hand off signaling.
The basic procedure of CSoPS speech processes mode is as follows:
1) is attached to the EPS network earlier after the UE start, and sets up the carrying that can be used for transmitting signaling between UE and the IWF;
2) UE is registered on the IWF by the signaling bear that the EPS network provides; IWF registers its address to MME.
3) UE is registered on the MSC by IWF by above-mentioned signaling bear execution LAU (IMSI adheres to) flow process;
4) when UE need carry out the CS business, UE sent to MSC with CS service request signaling by IWF by above-mentioned signaling bear, and carried out the normal process of CS business.In this process, can require the EPS network to set up new EPS and carry business transferring data (as the CS speech data), then IWF is according to the indication of MSC, by PCRF require strategy and charge execution function (Policy ChargingEnforcement Function, PCEF) or P-GW in the EPS network, set up or revise EPS and carry the requirement of satisfying the business transferring data.
5) when UE need be when E-UTRAN switches to the CS territory of GERAN/UTRAN, the current CS that will carry out of E-UTRAN indication MME switches, MME sends hand off signaling by the Z2 interface to IWF, IWF simulation RNC/BSC carries out the hand-off process of CS business.
And the network architecture diagram of SRVCC speech processes mode can be as shown in Figure 2, when carrying out network, UE switches, for example when the LTE network switches to the CS territory of UTRAN/GERAN, the current CS that will carry out of E-UTRAN indication MME switches, MME switches to the CS territory of UTRAN/GERAN by the Sv interface with audio call, and MSC Server indication IMS system carries out the territory with the upper-layer service layer and switches.
Below be divided into seven method embodiment at terminal with one or more speech processes abilities when supporting to switch between the network of more than one speech processes modes, after network side knew that terminal is taked any speech processes mode, process from the voice bearer switching flow to objective network that take the speech processes mode identical with terminal to initiate was elaborated.
The concrete equipment of network side can be MME or eNodeB.The executive agent of following method embodiment one to six is MME, and the executive agent of embodiment seven is eNodeB.
Embodiment one, describe in detail referring to Fig. 3, Fig. 3 is the method flow schematic diagram of present embodiment.
Step 101: in source network, when terminal need be initiated speech business, determine the speech processes mode of terminal in source network.Can determine the speech processes mode that terminal adopts by the initiating equipment in MME, terminal or the network.
In this step, further MME can be known the speech processes mode of described terminal source network, further can preserve or further notifies eNodeB with terminal in the speech processes mode of source network.
A. when terminal before source network is initiated speech business or when carrying out speech business, the speech processes mode that at least a decision-making UE among self support voice disposal ability (supporting one or more) that MME provides according to terminal, source network side support voice disposal ability (supporting one or more) and the carrier policy three takes, and the speech processes mode that network side is determined can be sent to UE.Carrier policy comprises the configuration of operator, the subscription data of UE etc.
B. when terminal before source network is initiated speech business or when carrying out speech business, MME sets up the information that obtains in the process by voice bearer knows the speech processes mode of terminal in source network, as Packet Data Network (Packet Data NetWork, PDN) initiating equipment of setting up of purpose of connecting equipment, voice bearer foundation or modification.Wherein, the process of voice bearer foundation can be the process of speech business asset creation.
Terminal can be in speech business asset creation process, initiate the PDN connection request to MME, newly-increased indication information informs that it is to the passage of IMS or to the passage of IWF, then MME can determine that the speech processes mode that terminal adopts is CSoPS speech processes mode or SRVCC speech processes mode that this PDN of MME connects.
Trigger the relevant chain of command or the end face carrying of speech business sets up in the flow process at IMS, IWF, MME can determine that the speech processes mode that terminal adopts is CSoPS speech processes mode or SRVCC speech processes mode according to initiating that voice bearer is created or modification process is the IWF in the CSoPS framework or the P-CSCF in IMS territory.
C. when terminal before source network is initiated speech business or when carrying out speech business, terminal can be according to self possessing the speech processes ability, and perhaps in conjunction with source network side support voice disposal ability, the speech processes mode of determining of self taking provides to MME again; Perhaps the speech processes mode that self configuration preference is adopted offers MME, does not influence the realization of the embodiment of the invention.
D. in the UE of source network registration process, when IWF sent the IWF address to Mobility Management Entity, MME determined the speech processes mode that terminal adopts at source network.
The step of then knowing the speech processes mode that terminal is adopted in source network is specially: MME is known the speech processes mode that terminal is adopted according to described definite result in source network.
Step 102: Mobility Management Entity knows that terminal need carry out voice and switch.
The measurement report that eNodeB sends according to terminal, whether decision initiates switching flow, and notice MME.
Step 103: Mobility Management Entity is known the speech processes mode that described terminal is adopted in source network.
Obtaining step specifically can comprise following mode:
A, MME can be known the speech processes mode of described switching terminal in source network according to the speech processes mode of terminal in source network in the step 101 of storage, and promptly MME is according to knowing in the step 101 that terminal is in the current speech processes mode of source network.
B, in step 101, by UE is that terminal is determined the speech processes mode, and when not informing MME, what then MME can be according among self support voice disposal ability, network side support voice disposal ability and the carrier policy three of terminal is at least a, and what know that terminal adopts is CSoPS speech processes mode or SRVCC speech processes mode or other modes.Wherein, self support voice disposal ability of terminal can be carried in the handoff request message that eNodeB notice MME switches in step 102, perhaps in source network, initiate to notify MME in the speech business process, perhaps when source network is registered, offer MME in terminal.
C, when in step 101, MME notifies eNodeB with terminal in the speech processes mode of source network, and in step 102, when MME knows that need carry out voice switches to the switching indication that MME receives that eNodeB sends, the speech processes mode of further carried terminal at source network indicated in described switching, and MME is known the speech processes mode of described terminal at source network according to described switching indication.
Wherein, can also comprise that MME knows that terminal has two or more abilities before the described step 103, and described source network is supported the two or more ability that described terminal is supported.Promptly have two or more abilities, and source network is when also supporting two or more abilities, can't knows under other situations that perhaps just the flow process of terminal in the speech processes mode of source network obtained in initiation when current terminal had adopted the sort of mode when MME finds terminal.
Step 104: adopt the speech processes mode that is adopted with described terminal to initiate voice bearer and switch to objective network.
MME adopts the corresponding voice bearer switching flow of speech processes mode that is adopted with terminal according to the determined speech processes mode of step 103.If determine to take CSoPS speech processes mode, then carry out the switching of CSoPS voice bearer; If determine to take SRVCC speech processes mode, then carry out the switching of SRVCC voice bearer.
Wherein, step 104 specifically can also comprise one of following mode,
A, MME are adopted described terminal in source network speech processes mode or terminal is had the information notice eNodeB of voice bearer in source network; ENodeB determines the Target cell that switches according to the access capability of objective network side support, and sends to MME and to switch indication; MME is known Target cell according to the switching indication that eNodeB sends, and adopts described terminal to initiate to switch to Target cell in the speech processes mode of source network.
The access capability that B, eNodeB provide the objective network side to support to MME, MME determines the Target cell that switches according to the access capability of objective network side support, MME adopts described terminal to initiate to switch to Target cell in the speech processes mode of source network.
The embodiment of the invention is when switching, can directly initiate to know flow process, know the speech processes mode of terminal at source network, thereby adopt the speech processes mode that terminal adopted to initiate the voice bearer switching to objective network, make the source network of one or more speech processes abilities of support adopt the speech processes mode that terminal adopted to initiate the voice bearer switching to objective network, after carrying out the network switching, keep the continuity of speech business, improve user experience.Also can know that terminal has two or more abilities, and described source network support that described terminal supports two or more ability the time, be that MME finds that terminal has two or more abilities, and when source network is also supported two or more abilities, in the time of perhaps can't judging the voice mode of terminal according to existing mode under other situations, just initiate to obtain the flow process of terminal in the speech processes mode of source network.
Following examples two to embodiment five explanation MME determine at least a among speech processes ability, source network side support voice disposal ability and the carrier policy three that the flow process of the speech processes mode that terminal adopts: embodiment two and three possesses according to terminal according to different approaches, embodiment four sets up the PDN purpose of connecting equipment of setting up in the process according to voice bearer, the initiating equipment that embodiment five sets up or revises according to newly-built voice bearer, six speech processes modes of determining according to terminal self of embodiment.No matter take which kind of approach to determine the speech processes mode that terminal adopts, speech processes mode that can described terminal adopted is initiated the voice bearer switching flow to objective network, reaches the object of the invention, keeps the continuity of speech business, improves user experience.
Embodiment two describes MME in detail according to terminal support voice disposal ability, source network side support voice disposal ability and carrier policy, determines the flow process of the speech processes mode that terminal adopts.
Embodiment two, describe in detail referring to Fig. 4, Fig. 4 is the method flow schematic diagram of present embodiment.
Step 201:UE provides self support voice disposal ability to MME, and knows source network support voice disposal ability.
UE can provide self support voice disposal ability to MME by Attach Request message, and perhaps, UE provides self preferential speech processes mode in providing capability.MME can accept message the speech processes ability of supporting is sent to UE by adhering to.Perhaps according to step 203, after determining to adopt a kind of speech processes mode, notify UE with the speech processes mode that adopts by the interaction message of network side and terminal.
Step 202: when voice bearer need switch, eNodeB informed MME target side network support access capability.
Step 203:MME determines the speech processes mode in the source network employing.
Step 203 can not done qualification herein before step 202.
MME is according to configuration or the subscription data of UE and the speech processes ability or the preferential processing mode of selecting of UE that UE supports of operator, and the objective network side support that source network side support voice disposal ability, eNodeB provide inserts the speech processes mode that at least a UE of knowing in the disposal ability takes at source network.
If network side can satisfy the preferential speech processes mode of UE, then MME adopts the preferential speech processes mode of UE in subsequent voice Business Processing process.
MME also can know that the speech processes mode that terminal adopts is the CSoPS mode at IWF when MME sends the message of IWF address.
Step 204:MME adopts the speech processes mode that is adopted with terminal to initiate the voice bearer switching to objective network.
MME is according to the determined speech processes mode of step 203, and the access capability supported of objective network, selects to have CS access capability sub-district and initiates to switch as target.Adopting the speech processes mode that is adopted with terminal to initiate voice bearer to objective network switches.If determine to take CSoPS speech processes mode, then send the IWF that handovers request in the CSoPS framework; If determine to take SRVCC speech processes mode, then send and handover request to MSC, voice bearer is switched to the IMS territory.
At least a according in the subscription data of the configuration of operator, UE, speech processes ability that UE possesses, ability that source network side support voice is handled, the objective network side support voice disposal ability that eNodeB provides of MME in the embodiment of the invention, when perhaps the CSoPS mode is used, is CSoPS by IWF to MME indication voice processing mode, determine the speech processes mode that terminal adopts, and initiate the voice bearer switching to objective network in the speech processes mode that terminal was adopted.After carrying out the network switching, keep the continuity of speech business, improve user experience.
Embodiment three has increased MME newly the speech processes mode that network side adopts has been sent to eNodeB on the basis of embodiment two, carries out the step that voice bearer switches according to the switching indication of eNodeB again.
Embodiment three, describe in detail referring to Fig. 5, Fig. 5 is the method flow schematic diagram of present embodiment.
Step 301:UE provides self support voice disposal ability and knows source network support voice disposal ability to MME.
Step 302:MME is known the speech processes mode that terminal adopts at source network.
Concrete mode can adopt the described processing mode of step 203.
Step 303: the speech processes mode that will know is informed eNodeB.
Can the speech processes mode that get access to be informed eNodeB by MME, perhaps (Radio Resource Control RRC) informs eNodeB in the message in Radio Resource control with the speech processes mode that adopts by UE.
Step 304: when voice bearer need switch, the speech processes ability of eNodeB combining target network support, the speech processes mode that indication MME initiates switching and takes.
Step 305:MME adopts the speech processes mode that is adopted with terminal to initiate the voice bearer switching to objective network.
MME adopts the speech processes mode that is adopted with terminal to initiate voice bearer to objective network and switches according to the switching indication of eNodeB in the step 305.If determine to take CSoPS speech processes mode, then send the IWF that handovers request in the CSoPS framework; If determine to take SRVCC speech processes mode, then send and handover request to MSC, voice bearer is switched to the IMS territory.
MME is according to terminal support voice disposal ability, network side support voice disposal ability and one of them kind of carrier policy in the embodiment of the invention, determine the speech processes mode that terminal adopts, and the speech processes mode of determining informed eNodeB, initiate voice bearer in the speech processes mode that terminal was adopted to objective network according to the switching indication of eNodeB and switch, the source network of feasible one or more speech processes abilities of support is initiated voice bearer in the speech processes mode that terminal was adopted to objective network and is switched.After carrying out the network switching, keep the continuity of speech business, improve user experience.
Following examples four describe in detail and set up the PDN purpose of connecting equipment of setting up in the process according to voice bearer, determine the flow process of the speech processes mode that terminal adopts.
Embodiment four, describe in detail referring to Fig. 6, Fig. 6 is the method flow schematic diagram of present embodiment.
Step 401:UE initiates the PDN connection request to MME, and informs that this PDN connection of MME is to the passage of IMS or to the passage of IWF.
UE can inform that the follow-up speech processes mode of MME adopts SRVCC or CSoPS by newly-increased indication information, perhaps, UE can also adopt special APN (Access PointName, APN) or this PDN of APN mark for marking of expansion to connect be to the passage of IMS or to the passage of IWF.
If to the passage of IMS, determine that then the speech processes mode that UE adopts is SRVCC; If to the passage of IWF, determine that then the speech processes mode that UE adopts is CSoPS.
No matter indication information is which kind of type what form and the message of carrying indication information are, does not all influence the realization of the embodiment of the invention.
Step 402:MME connects the request of foundation to PDN and sends to S-GW and P-GW, creates default bearer.
Step 403:MME determines the speech processes mode that terminal adopts at source network according to indication information.
Step 404:MME sends the load creating request to eNodeB, eNdoeB according to load creating request create the dedicated bearing resource.
Step 405:RRC connects foundation to be finished.
Step 406: when voice bearer need switch, MME adopted the speech processes mode that is adopted with terminal to initiate the voice bearer switching to objective network.
The speech processes mode information of portability or not carried terminal employing did not influence the realization of the embodiment of the invention to eNodeB when MME sent the load creating request in step 404.If MME has carried this information and given eNodeB in request, if then follow-up this terminal generation speech business is switched, then MME sends to eNodeB with handoff request, switches according to the indication of eNodeB then; Otherwise MME directly switches.
If determine to take CSoPS speech processes mode, then send the IWF that handovers request in the CSoPS framework; If determine to take SRVCC speech processes mode, then send and handover request to MSC, voice bearer is switched to the IMS territory.
MME sets up the PDN purpose of connecting equipment of setting up in the process in the embodiment of the invention according to voice bearer, determine the speech processes mode that terminal adopts, make the source network of one or more speech processes abilities of support adopt the speech processes mode that is adopted with terminal to switch to objective network initiation voice bearer, after carrying out the network switching, the continuity that keeps speech business improves user experience.
Following examples five describe MME in detail and set up in the flow process according to the relevant chain of command or the user plane bearer that trigger speech business at IMS, IWF, and the pairing speech processes mode that described bearing identification goes out is learnt the flow process of the speech processes mode of terminal.
Embodiment five, describe in detail referring to Fig. 7, Fig. 7 is the method flow schematic diagram of present embodiment.
(Policy Charging Rules Function PCRF) initiates the bearing creation flow process to step 501:AF indication "Policy and Charging Rules Function.
AF can be that (Proxy Call Session Control Function P-CSCF), does not influence the realization of the embodiment of the invention for IWF in the CSoPS framework or the Proxy Call Session Control Function in IMS territory.
If the voice resource that IWF initiates is created, then the speech processes mode of this user terminal employing is CSoPS, if the voice resource that P-CSCF initiates is created, then the speech processes mode of this user terminal employing is SRVCC, so can think that AF notifies PCRF the speech processes mode that this terminal adopts.
Obviously, AF also can be the initiating equipment that voice resource is revised, and does not also influence the realization of the embodiment of the invention.
(Policy Charging Control, PCC) rule trigger the establishment that P-GW initiates dedicated bearing to step 502:PCRF, and it is optional indicating the speech processes mode of this user terminal employing of P-GW simultaneously with the control of chargeing to the P-GW distributing policy.
If the speech processes mode that AF or PCRF do not indicate the P-GW terminal to be adopted in step 501 and step 502, then P-GW can select the speech processes mode that user terminal adopted according to the local policy that self disposes, and notice S-GW and MME.
Step 503:P-GW issues dedicated bearing request, the speech processes mode of carried terminal in this message created by S-GW to MME.
The speech processes mode that can be adopted by this information notification MME terminal.
Step 504:MME sends the load creating request to eNodeB, eNdoeB according to load creating request create the dedicated bearing resource.
Step 505:RRC connects foundation to be finished.
Step 506: when voice bearer need switch, MME adopted the speech processes mode that is adopted with terminal to initiate the voice bearer switching to objective network.
The speech processes mode information of portability or not carried terminal employing did not influence the realization of the embodiment of the invention to eNodeB when MME sent the load creating request in step 504.If MME has carried this information and given eNodeB in request, if then follow-up this terminal generation speech business is switched, then MME sends to eNodeB with handoff request, switches according to the indication of eNodeB then; Otherwise MME directly switches.
If determine to take CSoPS speech processes mode, then send the IWF that handovers request in the CSoPS framework; If determine to take SRVCC speech processes mode, then send and handover request to MSC, voice bearer is switched to the IMS territory.
The initiating equipment that MME sets up according to voice bearer in the embodiment of the invention, determine the speech processes mode that terminal adopts, adopting the speech processes mode that is adopted with terminal to initiate voice bearer to objective network switches, make the source network of one or more speech processes abilities of support adopt the speech processes mode that terminal adopted to initiate the voice bearer switching to objective network, after carrying out the network switching, the continuity that keeps speech business improves user experience.
Following examples six describe the information that MME provide by terminal in detail, and the flow process of the speech processes mode self taked is determined in the receiving terminal.
Embodiment six, describe in detail referring to Fig. 8, Fig. 8 is the method flow schematic diagram of present embodiment.
The speech processes ability that step 601:MME provides network side to support to terminal, as CSoPS or/and SRVCC.
Step 602: a kind of speech processes mode is used in the terminal decision-making.
Which kind of speech processes mode is terminal can perhaps use in conjunction with the decision-making of network side support voice disposal ability according to self support voice disposal ability, and perhaps terminal is selected self preferential speech processes mode, does not influence the realization of the embodiment of the invention.
Step 603: the speech processes mode after terminal will be made a strategic decision sends to eNodeB.
Can give eNodeB by RRC message or other wave point information bands with the result of decision.
Step 604: when the voice bearer switching took place, eNodeB received the measurement report of objective network from terminal.
Step 605:eNodeB indication MME does corresponding switching.
Step 606:MME adopts the corresponding voice bearer of the speech processes mode that is adopted with terminal to switch.
If determine to take CSoPS speech processes mode, then send the IWF that handovers request in the CSoPS framework; If determine to take SRVCC speech processes mode, then send and handover request to MSC, voice bearer is switched to the IMS territory.
The speech processes mode of self taking that MME determines according to terminal in the embodiment of the invention, determine the speech processes mode that terminal adopts, adopting the speech processes mode that is adopted with terminal to initiate voice bearer to objective network switches, make the source network of one or more speech processes abilities of support adopt the speech processes mode that terminal adopted to initiate the voice bearer switching to objective network, after carrying out the network switching, the continuity that keeps speech business improves user experience.
Following examples seven are initiatively sent request to terminal or MME by eNodeB, obtain the voice switching mode, indicate MME to carry out the switching of corresponding voice bearer according to the speech business processing mode of obtaining then.That is: the speech processes mode that terminal is adopted is known in the base station of evolution in source network; When voice bearer need switch, send the switching indication to MME, the speech processes mode of described terminal in the source network employing carried in described switching indication, and indication MME employing is initiated the voice bearer switching with the speech processes mode that described terminal is adopted to objective network.
Embodiment seven, describe in detail referring to Fig. 9, Fig. 9 is the method flow schematic diagram of present embodiment.
Step 701:UE sends the relevant measurement report that switches to eNodeB, triggers the switching of eNodeB initiation to the CS territory.
The measurement report that switches switches to be used for triggering to the ability of eNodeB report different districts.
Step 702:eNodeB sends request to UE or MME, obtains the voice switching mode of terminal at source network.
If determine speech processes mode (as embodiment six) by UE, eNodeB initiatively sends the request of speech business processing mode to UE; If determine speech processes mode (as embodiment three, four, five) by MME, eNodeB initiatively sends the request of speech business processing mode to MME.
Step 703:UE or MME send request and accept message to eNodeB, and inform the speech processes mode.
Step 704:eNodeB is according to the speech processes mode handover information that obtains, and the access capability that the combining target network side is supported when voice bearer need switch, triggers MME and does corresponding switching.
ENodeB is according to the speech processes mode handover information that obtains, the access capability that the combining target network side is supported, send to switch indication to Mobility Management Entity, the indication Mobility Management Entity carries out voice bearer in the corresponding mode of speech processes mode that is adopted with terminal and switches.
Be specifically as follows: the Target cell that switches is determined in the base station of evolution according to the access capability of objective network side support, the base station of evolution sends to MME switches indication, and the speech processes ability of objective network side support and the information of selected Target cell are carried in described switching indication.
Step 705:MME adopts the speech processes mode that is adopted with terminal to initiate the voice bearer switching to objective network.
Be specifically as follows: MME is known Target cell according to this switching indication, adopts described terminal to initiate to switch to Target cell in the speech processes mode of source network.
If determine to take CSoPS speech processes mode, then send the IWF that handovers request in the CSoPS framework; If determine to take SRVCC speech processes mode, then send and handover request to MSC, voice bearer is switched to the IMS territory.
The speech processes mode of self taking that eNodeB determines according to terminal in the embodiment of the invention, determine the speech processes mode that terminal adopts, and indication MME adopts the speech processes mode that is adopted with terminal to initiate the voice bearer switching to objective network, make the source network of one or more speech processes abilities of support adopt the speech processes mode that terminal adopted to initiate the voice bearer switching to objective network, after carrying out the network switching, the continuity that keeps speech business improves user experience.
Need to prove, for aforesaid each method embodiment, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that describes in detail among certain embodiment, can be referring to the associated description of other embodiment.
A kind of method that keeps voice business continuity more than is provided, and the embodiment of the invention also provides the base station of corresponding mobile management entity and evolution.
A kind of Mobility Management Entity 80, referring to Figure 10, Figure 10 is the structural representation of embodiment of the invention Mobility Management Entity, comprising:
Know speech processes mode unit 81, be used for knowing that terminal need carry out after voice switch, know the speech processes mode that terminal that described needs switch is adopted in source network;
Described Mobility Management Entity 80 also comprises:
Know ability unit 83, be used to know that terminal has two or more speech processes abilities, and described source network support that described terminal supports two or more speech processes ability the time, notice is known the speech processes mode that terminal that speech processes mode unit knows that described needs switch is adopted in source network.
82 of switch units are used for the speech processes mode determined according to the described ability of knowing unit 83, adopt the speech processes mode that is adopted with described terminal to initiate voice bearer to objective network and switch.
Referring to Figure 11, Figure 11 is another structural representation of embodiment of the invention Mobility Management Entity:
Described Mobility Management Entity 80 also comprises:
Determining unit 84 is used at least a according to terminal support voice disposal ability, source network side support voice disposal ability and carrier policy three, determines the speech processes mode that terminal is adopted in source network; Perhaps
Set up the PDN purpose of connecting equipment of setting up in the process by voice bearer, perhaps the initiating equipment of setting up or revising by voice bearer is determined the speech processes mode that terminal is adopted in source network; Perhaps
The described terminal self that receiving terminal sends is determined the speech processes mode at source network; Terminal can be according to self support voice disposal ability, perhaps the information of the speech processes mode of determining in conjunction with source network side support voice disposal ability of self taking; Perhaps preferential speech processes mode according to terminal self, determining the speech processes mode self taked does not influence the realization of the embodiment of the invention; Perhaps
According to the speech processes mode that terminal self is determined, know the speech processes mode that described terminal is adopted in source network;
Then switch unit 82, are used for the speech processes mode determined according to described determining unit 83, adopt the speech processes mode that is adopted with described terminal to initiate voice bearer to objective network and switch.
Described Mobility Management Entity 80 specifically is used for when knowing that speech processes mode that the unit knows that terminal adopts is CSoPS speech processes mode, and described switch unit 82 is used for sending handoff request to IWF; Perhaps
When knowing that speech processes mode that the unit knows that terminal adopts is SRVCC speech processes mode, described switch unit 82 is used for sending handoff request to MSC.
Described Mobility Management Entity 80 also can comprise:
Receive to switch indicating member 86, be used to receive the handoff request that the base station of evolution sends, and inform that according to the speech processes mode that terminal adopted switch unit 82 initiates voice bearer to objective network and switch.Objective network side support voice tenability can be carried in the base station of evolution in handoff request.
Then described Mobility Management Entity 80 also can further comprise:
Receiving target network capabilities unit 87 is used to receive the objective network support voice disposal ability that the base station of evolution provides;
Determine Target cell unit 88, be used for determining the Target cell that switches according to the objective network support voice disposal ability that receiving target network capabilities unit 87 receives; Then switch unit 82, are used for adopting the Target cell of determining to definite Target cell unit 88 in the speech processes mode that source network adopted with described terminal to initiate voice bearer and switch.
Each module of embodiment of the invention device can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Embodiment of the invention Mobility Management Entity is according to speech processes mode that terminal adopted, initiate voice bearer in the speech processes mode that terminal was adopted to objective network and switch, make the source network of one or more speech processes abilities of support switch to objective network initiation voice bearer in the speech processes mode that terminal was adopted.After carrying out the network switching, keep the continuity of speech business, improve user experience.
A kind of base station 90 of evolution, referring to Figure 12, Figure 12 is the structural representation of the base station of embodiment of the invention evolution, comprising:
Know unit 91, be used for knowing that the terminal that need switch is in speech processes mode that source network adopted;
Transmitting element 92, voice bearer is used for when need switch, according to the described speech processes mode of knowing that unit 91 gets access to, the access capability that the combining target network side is supported, send the switching indication to Mobility Management Entity, the indication Mobility Management Entity adopts the speech processes mode that is adopted with terminal to switch to objective network initiation voice bearer.
Described know unit 91 specifically be used for initiate switching before or when switching, obtain the speech processes mode that terminal is adopted to Mobility Management Entity or terminal in source network.
The base station 90 of described evolution also comprises determining unit 93, is used for determining the Target cell that switches according to the access capability of objective network side support;
Then transmitting element 92, be used for sending the switching indication to Mobility Management Entity, the speech processes ability of objective network side support and the information of determining unit 93 selected Target cells are carried in described switching indication, know Target cell with indication MME according to this switching indication, adopt described terminal to initiate to switch to Target cell in the speech processes mode of source network.
The base station of embodiment of the invention evolution according to terminal in speech processes mode that source network adopted, the indication Mobility Management Entity is initiated voice bearer in the speech processes mode that described terminal was adopted to objective network and is switched, make no matter to have only a kind of speech processes mode still be the network that exists of multiple speech processes mode and terminal and carrying out after network switches, the source network side can be known the speech processes mode that terminal adopts, thereby adopt the speech processes mode that terminal adopted to initiate the voice bearer switching flow to objective network, the continuity that keeps speech business improves user experience.
A kind of communication system 10, referring to Figure 13, Figure 13 is the structural representation of embodiment of the invention communication system, comprise a kind of Mobility Management Entity 80, the base station 90 that perhaps also comprises a kind of evolution, can make that carrying out network switching back network side can learn terminal in the speech processes mode that source network adopted, thereby adopt the speech processes mode that is adopted with terminal to initiate the voice bearer switching flow, the continuity of maintenance speech business to objective network.
The described method of the embodiment of the invention, device and communication system also can be according to terminal support voice disposal abilities, network side support voice disposal ability and carrier policy, perhaps set up the PDN purpose of connecting equipment of setting up in the process according to voice bearer, the perhaps initiating equipment of setting up according to newly-built voice bearer, perhaps the definite approach such as speech processes mode in receiving terminal self are determined the speech processes mode of terminal, all can adopt terminal to take the speech processes mode to initiate the voice bearer switching flow to objective network, reach the object of the invention, the continuity that keeps speech business improves user experience.
One of ordinary skill in the art will appreciate that, realize all or part of flow process in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
More than a kind of method, device and communication system of voice business continuity of keeping that the embodiment of the invention provided is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (27)
1. a method that keeps voice business continuity is characterized in that, comprising:
Mobility Management Entity MME knows that terminal need carry out voice and switch;
Know the speech processes mode that terminal that described needs switch is adopted in source network;
The speech processes mode that adopts described terminal to adopt is initiated the voice bearer switching to objective network.
2. method according to claim 1 is characterized in that, also comprises know the speech processes mode that terminal that described needs switch adopted in source network before:
MME knows that terminal has two or more speech processes abilities, and described source network is supported the two or more speech processes ability that described terminal is supported.
3. method according to claim 1 is characterized in that, knows that the speech processes mode that terminal that described needs switch is adopted in source network specifically comprises:
At least a among the speech processes ability that MME supports according to speech processes ability that terminal possessed, source network side, the carrier policy three determined the speech processes mode that terminal is adopted in source network.
4. method according to claim 1 is characterized in that, described method also comprises:
At least a among the speech processes ability that MME supports according to speech processes ability that terminal possessed, source network side, the carrier policy three determined the speech processes mode that described terminal is adopted in source network;
The step of then knowing the speech processes mode that terminal is adopted in source network is specially: MME is known the speech processes mode that terminal is adopted according to described definite result in source network;
Perhaps
MME sets up the grouped data network PDN purpose of connecting equipment of setting up in the process according to voice bearer, determines the speech processes mode that described terminal is adopted in source network;
The step of then knowing the speech processes mode that terminal is adopted in source network is specially: MME is known the speech processes mode that terminal is adopted according to described definite result in source network;
Perhaps
The initiating equipment that MME sets up or revises according to voice bearer is determined the speech processes mode that described terminal is adopted in source network;
The step of then knowing the speech processes mode that terminal is adopted in source network is specially: MME is known the speech processes mode that terminal is adopted according to described definite result in source network;
Perhaps
Terminal self is determined the speech processes mode at source network, and the described definite result of notice MME;
The step of then knowing the speech processes mode that terminal is adopted in source network is specially: MME is known the speech processes mode that terminal is adopted according to described definite result in source network;
Perhaps
Interactive function IWF is when MME sends the IWF address in the endpoint registration process of source network, and MME determines the speech processes mode that terminal adopts at source network;
The step of then knowing the speech processes mode that terminal is adopted in source network is specially: MME is known the speech processes mode that terminal is adopted according to described definite result in source network.
5. method according to claim 4 is characterized in that, terminal self is determined described terminal and specifically comprised in the step of the speech processes mode of source network:
The speech processes ability that described terminal is supported in conjunction with self speech processes ability and source network is determined the speech processes mode that adopts;
Perhaps described terminal is determined the speech processes mode that adopts according to self preferential speech processes mode.
6. according to each described method of claim 1 to 5, it is characterized in that, know that the speech processes mode that described terminal is adopted is specially in described network:
Determine that the speech processes mode that described terminal is adopted is packet domain access CSoPS speech processes mode or the single connecting system voice continuity SRVCC speech processes mode of circuit domain business by evolution in described network;
Then adopt the speech processes mode that is adopted with described terminal specifically to comprise to the step that objective network initiation voice bearer switches:
When determining that speech processes mode that terminal adopts is CSoPS speech processes mode, send handoff request to IWF; Perhaps
When determining that speech processes mode that terminal adopts is SRVCC speech processes mode, send handoff request to moving exchanging center MSC.
7. method according to claim 4 is characterized in that, describedly sets up the PDN purpose of connecting equipment of setting up in the process by voice bearer, determines that the speech processes mode that terminal is adopted in source network is specially:
Know that PDN purpose of connecting equipment for based on the equipment among the internet protocol multimedia subsystem IMS time, determines that the speech processes mode that described terminal adopts is SRVCC in source network; Perhaps
Know that PDN purpose of connecting equipment is IWF, determine that the speech processes mode that described terminal adopts is CSoPS in source network.
8. method according to claim 4 is characterized in that, the described initiating equipment of setting up or revising by voice bearer determines that the speech processes mode that described terminal is adopted is specially in source network:
Know that voice bearer foundation or the initiating equipment of revising are the equipment among the IMS, determine that the speech processes mode that described terminal is adopted is SRVCC in source network;
Know that the initiating equipment that voice bearer is set up or revised is IWF, determine that the speech processes mode that described terminal is adopted is CSoPS in source network.
9. according to each described method of claim 1 to 5, it is characterized in that, described according to described speech processes mode, adopt the speech processes mode that in source network, is adopted with described terminal to initiate the voice bearer switching and be specially to objective network:
MME is adopted described terminal in source network speech processes mode or terminal is had the base station of the information notice evolution of voice bearer in source network;
The Target cell that switches is determined according to the access capability of objective network side support in the base station of evolution, and sends to MME and to switch indication;
Know Target cell in the switching indication of MME according to the base station transmission of evolution, adopt described terminal to initiate corresponding switching to Target cell in the speech processes mode of source network.
10. method according to claim 1 is characterized in that, the step that the speech processes mode that adopts described terminal to adopt is initiated the voice bearer switching to objective network also comprises:
The access capability that the base station of evolution provides the objective network side to support to MME, MME determines the Target cell that switches according to the access capability of objective network side support, MME adopts described terminal to initiate to switch to Target cell in the speech processes mode of source network.
11. method according to claim 9, it is characterized in that, evolution base station obtains the speech processes mode that terminal adopts to MME before initiate switching or when switching, and indicates MME to adopt described terminal to switch to Target cell in the speech processes mode of source network.
12. a method that keeps voice business continuity is characterized in that, comprising:
The speech processes mode that terminal is adopted is known in the base station of evolution in source network;
When voice bearer need switch, send the switching indication to MME, the speech processes mode of described terminal in the source network employing carried in described switching indication, and indication MME employing is initiated the voice bearer switching with the speech processes mode that described terminal is adopted to objective network.
13. method according to claim 12 is characterized in that, the speech processes mode that described terminal is adopted is known in the base station of described evolution in source network, be specially:
From described end, the speech processes mode that terminal is adopted is known in the base station of evolution in source network.
14. method according to claim 13 is characterized in that, the base station of described evolution knows that from described terminal the speech processes mode that described terminal is adopted is specially source network:
According to the speech processes mode that self adopts that described terminal is determined in conjunction with the speech processes ability of self speech processes ability and source network support, the speech processes mode that described terminal is adopted is known in the base station of evolution in source network.
15. method according to claim 14 is characterized in that, also comprises: source network sends the speech processes ability that source network is supported to described terminal.
16. method according to claim 14 is characterized in that, the base station of described evolution knows that the speech processes mode that described terminal is adopted is specially in source network:
The speech processes mode that described terminal is adopted is known according to the terminal of carrying in the radio resource control information self speech processes ability in the base station of evolution in source network.
17. method according to claim 13 is characterized in that, and is described from described end, the base station of evolution knows that the speech processes mode that terminal is adopted is specially in source network:
The base station of evolution sends the request of speech business processing mode to described terminal;
Described terminal sends request and accepts the base station of message to evolution, and described request is accepted message and carry the speech processes mode that described terminal is adopted in source network.
18. method according to claim 12 is characterized in that, when voice bearer need switch, also comprises before MME sends the switching indication:
The Target cell that switches is determined in the base station of evolution according to the access capability of objective network side support;
Then send to switch to indicate and be specially to MME:
The base station of evolution sends to MME switches indication, the speech processes ability of objective network side support and the information of selected Target cell are carried in described switching indication, know Target cell with indication MME according to this switching indication, adopt described terminal to initiate to switch to Target cell in the speech processes mode of source network.
19. a Mobility Management Entity is characterized in that, comprising:
Know speech processes mode unit, be used for knowing that terminal need carry out after voice switch, know the speech processes mode that terminal that described needs switch is adopted in source network;
Switch unit is used for the speech processes mode of knowing that according to described speech processes mode unit is known, adopts the speech processes mode that is adopted with described terminal to initiate voice bearer to objective network and switches.
20. Mobility Management Entity according to claim 19 is characterized in that, also comprises:
Know the ability unit, be used to know that terminal has two or more speech processes abilities, and described source network support that described terminal supports two or more speech processes ability the time, notice is known the speech processes mode that terminal that speech processes mode unit knows that described needs switch is adopted in source network.
21. Mobility Management Entity according to claim 20 is characterized in that, institute tells and knows that speech processes mode unit also is used for:
At least a among the speech processes ability of supporting according to speech processes ability that terminal possessed, source network side, the carrier policy three determined the speech processes mode that described terminal is adopted in source network;
Perhaps
Set up the PDN purpose of connecting equipment of setting up in the process according to voice bearer, perhaps the initiating equipment of setting up or revising according to voice bearer is determined the speech processes mode that described terminal is adopted in source network;
Perhaps
The described terminal self that receiving terminal sends is determined the speech processes mode at source network; Perhaps
IWF determines the speech processes mode that terminal adopts at source network when MME sends the IWF address in the endpoint registration process of source network;
Know that then speech processes mode unit is used for knowing that according to described definite result described terminal is in speech processes mode that source network adopted.
22., it is characterized in that when knowing that speech processes mode that the unit knows that terminal adopts is CSoPS speech processes mode, described switch unit is used for sending handoff request to IWF according to claim 19 or 20 described Mobility Management Entity; Perhaps
When knowing that speech processes mode that the unit knows that terminal adopts is SRVCC speech processes mode, described switch unit is used for sending handoff request to MSC.
23. according to claim 19 or 20 described Mobility Management Entity, it is characterized in that, also comprise:
Notification unit, the speech processes mode that is used for that described terminal is adopted is notified the base station of evolution; Receive to switch indicating member, be used to accept the switching indication that the base station of evolution sends, the information of the Target cell that switches is determined in the base station of carrying evolution in the described switching indication according to the access capability of objective network side support;
Then described switch unit is used for initiating voice bearer in the speech processes mode that source network adopted to described Target cell with described terminal according to described switching indication employing and switches.
24. Mobility Management Entity according to claim 23 is characterized in that, described mobile management network element also comprises:
Receiving target network capabilities unit is used to receive the objective network support voice disposal ability that the base station of evolution provides;
Determine the Target cell unit, be used for determining the Target cell that switches according to the objective network support voice disposal ability that receiving target network capabilities unit receives;
Then switch unit is used for adopting with described terminal and initiates the voice bearer switching in the speech processes mode that source network adopted to the Target cell of determining.
25. the base station of an evolution is characterized in that, comprising:
Know the unit, be used for knowing that the terminal that need switch is in speech processes mode that source network adopted;
Transmitting element, voice bearer is used for when need switch, according to the described speech processes mode of knowing that speech processes mode unit is known, send the switching indication to Mobility Management Entity, the speech processes ability that the objective network side is supported is carried in described switching indication, and the indication Mobility Management Entity is initiated voice bearer in the speech processes mode that described terminal was adopted to objective network and switched.
26. the base station of evolution according to claim 25 is characterized in that, also comprises:
Describedly know that the unit specifically is used for obtaining terminal in speech processes mode that source network adopted to Mobility Management Entity or terminal.
27. method according to claim 25 is characterized in that, the base station of described evolution specifically also comprises determining unit,
Described determining unit is used for determining the Target cell that switches according to the access capability of objective network side support;
Transmitting element then, be used for sending the switching indication to Mobility Management Entity, the speech processes ability of objective network side support and the information of selected Target cell are carried in described switching indication, know Target cell with indication MME according to this switching indication, adopt described terminal to initiate to switch to Target cell in the speech processes mode of source network.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910006661A CN101800961A (en) | 2009-02-09 | 2009-02-09 | Method and device for maintaining voice business continuance and communication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910006661A CN101800961A (en) | 2009-02-09 | 2009-02-09 | Method and device for maintaining voice business continuance and communication system |
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| CN101800961A true CN101800961A (en) | 2010-08-11 |
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|---|---|---|---|
| CN200910006661A Pending CN101800961A (en) | 2009-02-09 | 2009-02-09 | Method and device for maintaining voice business continuance and communication system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012024908A1 (en) * | 2010-08-23 | 2012-03-01 | 中兴通讯股份有限公司 | Method and system for reporting terminal capability, |
| WO2013064105A1 (en) * | 2011-11-04 | 2013-05-10 | 中兴通讯股份有限公司 | Method and device for switching reverse single radio voice call continuity bearer |
| WO2015117490A1 (en) * | 2014-07-31 | 2015-08-13 | 中兴通讯股份有限公司 | Method and device for establishing bearer |
| CN106717057A (en) * | 2015-08-28 | 2017-05-24 | 华为技术有限公司 | Method for establishing voice bearer and access network device |
| WO2018102970A1 (en) * | 2016-12-05 | 2018-06-14 | 华为技术有限公司 | Method and apparatus for creating voice bearer |
| CN111246530A (en) * | 2020-02-06 | 2020-06-05 | 北京小米移动软件有限公司 | Network switching method and device and storage medium |
| CN114828127A (en) * | 2022-06-28 | 2022-07-29 | 荣耀终端有限公司 | Voice communication method, device and storage medium |
| WO2022268121A1 (en) * | 2021-06-22 | 2022-12-29 | 中国移动通信有限公司研究院 | Service continuity method and apparatus for converged network, and communication device |
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| WO2012024908A1 (en) * | 2010-08-23 | 2012-03-01 | 中兴通讯股份有限公司 | Method and system for reporting terminal capability, |
| CN102378297A (en) * | 2010-08-23 | 2012-03-14 | 中兴通讯股份有限公司 | Terminal capacity report method and system |
| CN102378297B (en) * | 2010-08-23 | 2015-04-01 | 中兴通讯股份有限公司 | Terminal capacity report method and system |
| WO2013064105A1 (en) * | 2011-11-04 | 2013-05-10 | 中兴通讯股份有限公司 | Method and device for switching reverse single radio voice call continuity bearer |
| US10542467B2 (en) | 2014-07-31 | 2020-01-21 | Xi'an Zhongxing New Software Co., Ltd. | Method and device for establishing a 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 |
| WO2015117490A1 (en) * | 2014-07-31 | 2015-08-13 | 中兴通讯股份有限公司 | Method and device for establishing bearer |
| CN106717057A (en) * | 2015-08-28 | 2017-05-24 | 华为技术有限公司 | Method for establishing voice bearer and access network device |
| CN106717057B (en) * | 2015-08-28 | 2020-07-10 | 诸暨市元畅信息技术咨询服务部 | Voice bearer establishing method and access network equipment |
| WO2018102970A1 (en) * | 2016-12-05 | 2018-06-14 | 华为技术有限公司 | Method and apparatus for creating voice bearer |
| CN111246530A (en) * | 2020-02-06 | 2020-06-05 | 北京小米移动软件有限公司 | Network switching method and device and storage medium |
| WO2022268121A1 (en) * | 2021-06-22 | 2022-12-29 | 中国移动通信有限公司研究院 | Service continuity method and apparatus for converged network, and communication device |
| CN114828127A (en) * | 2022-06-28 | 2022-07-29 | 荣耀终端有限公司 | Voice communication method, device and storage medium |
| CN114828127B (en) * | 2022-06-28 | 2022-11-15 | 荣耀终端有限公司 | Voice communication method, device and storage medium |
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Application publication date: 20100811 |