CN103024846B - Business switching method, mobile terminal and mobile switching center - Google Patents
Business switching method, mobile terminal and mobile switching center Download PDFInfo
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- CN103024846B CN103024846B CN201210586762.5A CN201210586762A CN103024846B CN 103024846 B CN103024846 B CN 103024846B CN 201210586762 A CN201210586762 A CN 201210586762A CN 103024846 B CN103024846 B CN 103024846B
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- 108050007176 CS domains Proteins 0.000 claims abstract description 12
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
Abstract
The invention relates to the technical field of communication, in particular to a business switching method, a mobile terminal and a mobile switching center. The method includes that the mobile terminal receives a circuit switching domain fallback (CFSB) instruction sent by a mobile management entity (MME), falls back from a long term evolution (LTE) to a circuit switch (CS) domain according to the CSFB instruction and performs a first CS business in the CS domain, and receives an instruction of delayed return to the LTE domain sent by the mobile switching center (MSC), wherein the instruction is used for indicating the mobile terminal to continue to reside in the CS domain after completing the first CS business, and the mobile terminal continues to reside in the CS domain according to the instruction of delayed return to the LTE domain and performs a second CS business in the CS domain, and returns to the LTE domain after the second CS business is finished.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of business switch method, mobile terminal and mobile switching centre.
Background technology
2/3G network is to Long Term Evolution (Long Term Evolution, LTE) network Development for current mobile communications network, and in order to resources such as the covering of the existing 2/3G network of maximum using and quality of services, the investment interests of protection operator maximizes.Long Term Evolution (Long Term Evolution, LTE) core net of system only remains grouping (Packet Switched, PS) territory, be called block core (the Evolved PacketCore of evolution, EPC) network, the packet core network of evolution mainly comprises MME, gateway (ServingGateway, S-GW), grouped data network gateway (Packet Data Network Gateway, PGW) three logic entities.The wireless access network of LTE system is evolved universal terrestrial radio access network (EvolvedUniversal Terrestrial Radio Access Network, E-UTRAN), in addition, subscriber equipment also can pass through GSM EDGE Radio Access Network (GSM EDGE Radio Access Network, GERAN) or universal terrestrial access network (Universal Terrestrial Radio Access Network, UTRAN) (being abbreviated as GERAN/UTRAN) access the packet core network of evolution.
At the deployment of LTE network initial stage, be generally that LTE does focus covering, mainly carry out data service, as short message service; The business (calling, supplementary service etc.) that circuit switching (Circuit Switch, CS) territory is relevant is then still carried out at 2/3G network.Circuit domain dropping (CS Fallback, CSFB) namely realizes this function, when making mobile terminal quarter at LTE network, can fall back to CS territory and carry out the relevant business of CS, automatic fast return LTE network after CS business completes.
By the analysis to prior art, inventor thinks that prior art at least exists following problem:
By existing CSFB scheme, when falling back to after CS territory carried out a CS business, and if then one more or repeatedly CS business, then mobile terminal still will return LTE network, fall back to CS territory network again and carry out second time CS business, which increase time delay and the signaling consumption of follow-up business.
Summary of the invention
For overcoming the defect of prior art, the object of the embodiment of the present invention is to provide a kind of business switch method, mobile terminal and mobile switching centre, make under CSFB scene, after mobile terminal has carried out a CS business, when needing to carry out follow-up CS business in succession, avoid repeatedly switching the time delay and signaling consumption that cause.
First aspect, a kind of method that the embodiment of the present invention provides business to switch, comprising:
The circuit domain dropping CSFB that mobile terminal receiving mobility management entity MME sends indicates, and according to described CSFB instruction from Long Term Evolution LTE domain dropping to circuit-switched CS domain, and carries out a CS business in CS territory;
Receive the time delay that moving exchanging center MSC sends and return the instruction in LTE territory, described instruction is used to indicate after described mobile terminal completes a described CS business, continues to reside in CS territory;
Return the instruction in LTE territory according to described time delay, continue to reside in CS territory, and carry out the 2nd CS business in CS territory;
Mobile terminal returns to LTE territory.
In the first possible implementation of first aspect, the instruction that described time delay returns to LTE territory is obtained the difference of time the 2nd CS business and a described CS service ending time from the subscription data of user corresponding to described mobile terminal by MSC, send when the difference of described time is less than predetermined time threshold value.
In the implementation that the second of first aspect is possible, described time delay returns the instruction in LTE territory by the type of service of MSC according to a CS business, obtain the time started of the two CS business corresponding with the type of service of a described CS business, obtain the difference of described 2nd CS business time started and a described CS service ending time, send when the difference of described time is less than predetermined time threshold value.
Second aspect, the embodiment of the present invention provides a kind of mobile terminal, comprising:
Receiving element, the circuit domain dropping CSFB sent for receiving mobility management entity MME indicates;
Circuit domain dropping unit, for the described CSFB instruction received according to described receiving element, by Long Term Evolution LTE domain dropping to circuit-switched CS domain;
CS business performance element, after falling back to CS territory at described mobile terminal, carries out a CS business in described CS territory;
Described receiving element, the time delay also sent for receiving moving exchanging center MSC returns the instruction in LTE territory, and described instruction is used to indicate described mobile terminal after completing a CS business, continues to reside in CS territory;
Described CS business performance element, the time delay also for receiving according to receiving element returns the instruction in LTE territory, continues to reside in CS territory, and carries out the 2nd CS business in CS territory;
Return unit, for returning to LTE territory.
In the first possible implementation of second aspect, the time delay that described receiving element receives returns the instruction in LTE territory, sends after the difference of the time of MSC from the subscription data that described mobile terminal is corresponding obtains the 2nd CS business and a described CS service ending time is less than predetermined time threshold value.
In the implementation that the second of second aspect is possible, the time delay that described receiving element receives returns the instruction in LTE territory, by the type of service of MSC according to a CS business, and the type of service of a CS business of self configuration and the mapping relations of the time started of the 2nd CS business, send after the difference of the time that the 2nd CS business that obtains starts and a described CS service ending time is less than predetermined time threshold value.
The third aspect, the embodiment of the present invention provides a kind of mobile switching centre, comprising:
First circuit switching (CS) Service Processing Unit, for after mobile terminal is from Long Term Evolution LTE domain dropping to CS territory, carries out a CS business alternately with described mobile terminal;
Transmitting element, for returning the instruction in LTE territory to described mobile terminal forward delay interval, described instruction is used to indicate after described mobile terminal completes a described CS business, continues to reside in CS territory;
2nd CS business unit, for receiving after described time delay returns the instruction in LTE territory at described mobile terminal, carries out the 2nd CS business alternately with the described mobile terminal continuing to reside in CS territory.
In the first possible implementation of the third aspect, described mobile switching centre comprises further:
Acquiring unit, for obtaining the difference of time the 2nd CS business and a described CS service ending time from the subscription data of user corresponding to described mobile terminal, when the difference of described time is less than predetermined time threshold value, notify that described transmitting element sends the instruction that described time delay returns to LTE territory.
In the implementation that the second of the third aspect is possible, described mobile switching centre comprises further:
Acquiring unit, for the type of service according to a CS business, obtain the time started of the two CS business corresponding with the type of service of a described CS business, obtain the difference of described 2nd CS business time started and a described CS service ending time, when the difference of described time is less than predetermined time threshold value, notify that described transmitting element sends the instruction that described time delay returns to LTE territory.
The business switch method that the embodiment of the present invention provides, mobile terminal and mobile switching centre, after mobile terminal has carried out a CS business, when needing to carry out follow-up CS business in succession, by postponing to return to LTE territory, avoid unnecessary by CS territory to LTE territory, and the time delay of carrying out follow-up CS business by LTE domain dropping to CS territory and causing and signaling consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of business switch method flow chart figure that Fig. 1 provides for the embodiment of the present invention;
The another kind of business switch method flow chart figure that Fig. 2 provides for the embodiment of the present invention;
Another business switch method flow chart figure that Fig. 3 provides for the embodiment of the present invention;
Another business switch method flow chart figure that Fig. 4 provides for the embodiment of the present invention;
The structural representation of a kind of mobile terminal that Fig. 5 provides for the embodiment of the present invention;
The structural representation of another mobile terminal that Fig. 6 provides for the embodiment of the present invention.
The structural representation of a kind of mobile switching centre that Fig. 7 provides for the embodiment of the present invention;
The structural representation of another mobile switching centre that Fig. 8 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, be a kind of business switch method schematic diagram that the embodiment of the present invention provides, comprise:
The CSFB instruction that S101, mobile terminal receiving mobility management entity MME send, falls back to CS territory, and carries out a CS business in CS territory;
Move according to described CSFB instruction from LTE domain dropping to circuit-switched CS domain, and carry out a CS business in CS territory.
S102, receives the time delay that moving exchanging center MSC sends and returns the instruction in LTE territory, and described instruction is used to indicate after mobile terminal completes a described CS business, continues to reside in CS territory;
Here, the instruction that time delay returns to LTE territory can send after the difference of the time of MSC from subscription data knows the 2nd CS business and a described CS service ending time is less than predetermined time threshold value; Concrete, be set with the 2nd CS business in the subscription data of the user that described mobile terminal is corresponding, and the 2nd CS business is the business that will continue after a CS service ending to perform in predetermined time section.Alternatively, the 2nd CS business that can also be set with in the subscription data of the user that described mobile terminal is corresponding starts the concrete time performed, and calculates the difference of this 2nd CS business time started and a CS service ending time with this time.
Also can by the type of service of MSC according to a CS business, and self configuration the type of service of a CS business and the mapping relations of the time started of the 2nd CS business, obtain the time started of the 2nd CS business, and know that the difference of the time that the 2nd CS business starts and a described CS service ending time sends the instruction that this time delay returns to LTE territory after being less than predetermined time threshold value.
S103, returns the instruction in LTE territory according to described time delay, continue to reside in CS territory, and carries out the 2nd CS business in CS territory;
Concrete, perform when the 2nd CS business can arrive time of starting of the 2nd CS business in subscription data.
S104, mobile terminal returns to LTE territory.
Concrete, can after the 2nd CS service ending, mobile terminal returns to LTE territory.Optionally, when and then also needing to carry out the 3rd CS business after the 2nd CS business, mobile terminal can after the 2nd CS service ending, again judge whether the difference of the time started of the 3rd CS business and the end time of the 2nd CS business is less than scheduled time threshold value, if be less than scheduled time threshold value, then mobile terminal again reception delay return the instruction in LTE territory, continue to reside in CS territory, complete the 3rd CS business.Whether the difference of the concrete time started judging the 3rd CS business and the end time of the 2nd CS business is less than the method for scheduled time threshold value, with reference to the description of S102, can not repeat them here.Certainly, the embodiment of the present invention is not limited to two or three CS business, and can be also more CS business, principle be the same.
In the embodiment of the present invention, mobile terminal is when the difference of the time that the 2nd CS business starts and a CS service ending time is less than predetermined time threshold value, the instruction in LTE territory is returned by reception delay, after completing a described CS business, reside in CS territory and complete the 2nd CS business, then return to LTE territory.Avoid and unnecessary return to LTE territory from CS territory, and carry out the 2nd CS business by LTE domain dropping to CS territory, thus the time delay caused and signaling consumption.
As shown in Figure 2, a kind of method that the embodiment of the present invention provides business to switch, comprising:
S201, mobile terminal sends expansion service request message through evolution base station eNodeB to MME;
This expansion service request can comprise the parameter that triggering mobile terminals carries out CS domain dropping.
S202, MME return modify request messages to eNodeB, carry CSFB instruction;
S203, eNodeB send RRC Release message to mobile terminal;
Here, RRC Release message carries CSFB instruction, and notice mobile terminal falls back to CS territory.
S204, sets up CS and connects;
Mobile terminal is set up CS by base station controller with MSC and is connected.
S205, carries out a CS business;
MSC judges after a CS service ending, whether also has the 2nd CS business.If after a CS service ending, do not have the 2nd CS business, then forward S208 to, mobile terminal returns to LTE territory immediately.
As after a CS service ending, also have the 2nd CS business, and the difference of time between time of starting of the 2nd CS business and the described CS service ending time is less than predetermined time threshold value, then perform S206;
Concrete determination methods can be from attaching position register (Home LocationRegister by MSC, or VLR Visitor Location Register (Visit Location Register HLR), or service control point (Service Control Point VLR), SCP) subscription data of user is obtained, after subscription data can be informed in a CS business, there is the 2nd CS business, and the difference of the time of the 2nd CS business time started and a CS service ending can be obtained from subscription data.When the difference of the time between the time that the 2nd CS business starts and a described CS service ending time is less than predetermined time threshold value (as being less than 5 seconds), perform S206; This time threshold is less than after mobile terminal completes a CS business, directly returns to LTE territory and falls back to CS territory time sum used.
In addition, MSC can also according to the configuration of self, and the type of service of a CS business, obtains the time started of the 2nd CS business.Particularly, MSC configures the type of service of a CS business and the mapping relations between the time started of the 2nd CS business, by the type of service of the first business, obtain the time started of the second business, because MSC can obtain the end time of a CS business, and then whether the difference of the time that can judge between the time started of the 2nd CS business and the end time of a CS business is less than predetermined time threshold value, if be less than this time threshold, then performs S206;
It is pointed out that a CS business here, or the 2nd CS business, all refer to once complete CS business, as complete audio call flow process, or complete supplementary service flow process.
What S206, MSC sent to mobile terminal carries the instruction that time delay returns to LTE territory;
This time delay returns the instruction in LTE territory for informing that mobile terminal is after having carried out first time CS business, continues reside in CS territory and do not return to LTE territory at once, proceeds the 2nd CS business in CS territory;
Particularly, can carry by clear command ClearCommand message the instruction that this delay returns to LTE territory.
S207, carries out the 2nd CS business in CS territory;
Mobile terminal receives after time delay returns the instruction in LTE territory, continues to reside in CS territory, and carries out the 2nd CS business in CS territory.
S208, mobile terminal returns to LTE territory.
After the 2nd CS service ending, mobile terminal returns to LTE territory.
Above-mentioned steps S201-S204 be standard by the flow process of LTE domain dropping to CS territory, S208 is also for the CS territory of standard returns the flow process of LTE.Wherein, the method returning to LTE territory can be, mobile terminal sends tracing section updating message to MME, MME sends location update request message to MSC, accept the location updating response that MSC returns, and then accept message to mobile terminal transmission tracing section updating, mobile terminal returns to LTE territory.
Certainly, if after the 2nd CS service ending, also has CS business in succession, then after S207, with reference to S205, can again judge the time started of the 3rd CS business and the end time of the 2nd CS business, if the end time of the time started of the 3rd CS business and the 2nd CS business is less than predetermined threshold, after then having carried out the 2nd CS business, mobile terminal continues to reside in CS territory, carries out the 3rd CS business.Certainly, the embodiment of the present invention is not limited to two or three CS business, and can be also more CS business, principle be the same.
Like this, when mobile terminal needs to carry out twice in succession or more time CS business, postpone to return to LTE territory, thus reduce and unnecessary turn back to LTE by CS territory, and the time delay falling back to CS by LTE again and cause and signaling consumption.
As shown in Figure 3, the embodiment of the present invention provides the method that another kind of business switches.After mobile terminal completes CS voice calling service, directly carry out unstructured supplementary data traffic (UnstructedSupplementary Service Data, USSD) business, do not return LTE immediately.Specifically comprise:
S301, mobile terminal sends expansion service request message through eNodeB to MME;
S302, MME return modify request messages to eNodeB, carry CSFB instruction;
S303, eNodeB send RRC Release message to mobile terminal;
Here, RRC Release message carries CSFB instruction, and notice mobile terminal falls back to CS territory.
S304, sets up CS and connects;
Mobile terminal is set up CS by base station controller with MSC and is connected.
S305, carries out CS voice calling service;
Particularly, MSC can obtain user contracting data from HLR or VLR or SCP, and have a field in the CAMEL-Subscription-Information of this user, after representing that this voice calling service completes, user will know telephone expenses state, need by the telephone expenses state of USSD service announcements user.Another field of CAMEL-Subscription-Information can show USSD business time started and CS voice call terminate between time difference.When the time difference is less than predetermined time threshold value, then next perform S306.Here, USSD business is a kind of supplementary service, is also a kind of CS business.Concrete, the process that MSC obtains subscription data is normal process, and the present invention repeats no more.
S306, MSC send to mobile terminal and carry the instruction that time delay returns to LTE territory;
This time delay returns the instruction in LTE territory for informing that mobile terminal is after having carried out CS voice calling service, resides in CS territory and does not return to LTE territory at once, proceeds USSD business in CS territory;
Particularly, can carry by clear command ClearCommand message the instruction that this delay returns to LTE territory.
S307, carries out USSD business;
Mobile terminal returns the instruction in LTE territory according to the time delay that MSC sends, and after CS voice calling service terminates, does not return to LTE territory, directly carries out USSD business, know user telephone fee state.
S308, returns to LTE territory.
After USSD service ending, mobile terminal returns to LTE territory.
The method specifically returning LTE can be the flow process of standard, mobile terminal sends tracing section updating message and sends location update request message to MME, MME to MSC, accepts the location updating response that MSC returns, and then accepting message to mobile terminal transmission tracing section updating, mobile terminal returns to LTE territory.Concrete USSD business is also the flow process of standard, does not repeat them here.
By the method for the present embodiment, mobile terminal is after CS voice call terminates, do not return LTE immediately, but LTE territory is returned to after USSD business completes, thus decrease and unnecessary turn back to LTE territory from CS territory, and carry out USSD again after LTE domain dropping to CS territory, and the time delay caused and signaling consumption.
As shown in Figure 4, the embodiment of the present invention provides the method that another business switches.After mobile terminal completes USSD business, directly carry out voice calling service, do not return LTE immediately.Specifically comprise:
S401, mobile terminal sends expansion service request message through eNodeB to MME;
S402, MME return modify request messages to eNodeB, carry CSFB instruction;
S403, eNodeB send RRC Release message to mobile terminal;
Here, RRC Release message carries CSFB instruction, and notice mobile terminal falls back to CS territory.
S404, sets up CS and connects;
Mobile terminal is set up CS by base station controller with MSC and is connected.
S405, mobile terminal carries out USSD business;
Particularly, MSC, by resolving USSD message, can know that the type of service of this business is USSD business.According to the type of service of USSD business and the mapping relations of the time started of CS voice calling service of MSC configuration, the time that after knowing USSD business, CS voice calling service starts, because MSC can obtain the end time of USSD business, if the difference of CS voice calling service time started and USSD service ending time is less than predetermined time threshold value, then perform S406.
Here, this predetermined time threshold value should be less than mobile terminal and return to LTE territory, and again fall back to CS territory time sum used.In addition, the CS voice calling service after USSD business can be call-back service, or voice mailbox service, and this is not restricted for the embodiment of the present invention.
S406, MSC send to mobile terminal and carry the instruction that time delay returns to LTE territory;
This time delay returns the instruction in LTE territory for informing that mobile terminal is after having carried out USSD business, resides in CS territory and does not return to LTE territory at once, proceeds CS voice calling service in CS territory;
Particularly, can carry by clear command ClearCommand message the instruction that this delay returns to LTE territory.
S407, carries out CS voice calling service;
Mobile terminal returns the instruction in LTE territory according to the time delay that MSC sends, and after USSD service ending, does not return to LTE territory, directly carries out CS voice calling service.
S408, returns to LTE territory.
After CS voice calling service terminates, mobile terminal returns to LTE territory.
The method specifically returning LTE can be, mobile terminal sends tracing section updating message and sends location update request message to MME, MME to MSC, accepts the location updating response that MSC returns, and then accepting message to mobile terminal transmission tracing section updating, mobile terminal returns to LTE territory.
Certainly, the embodiment of the present invention is not limited to USSD business, also can be other CS supplementary service.
By the method for the present embodiment, mobile terminal, after USSD service ending, does not return LTE immediately, but returns to LTE territory after ensuing CS voice calling service completes, thus decrease unnecessary CS territory to LTE territory, and the time delay that causes to CS territory of LTE domain dropping and signaling consumption.
As shown in Figure 5, the embodiment of the present invention provides a kind of mobile terminal, comprising:
Receiving element 501, for receiving the CSFB instruction that MME sends;
Circuit domain dropping unit 502, for the described CSFB instruction received according to described receiving element, by Long Term Evolution LTE domain dropping to circuit-switched CS domain;
CS business performance element 503, after falling back to CS territory at described mobile terminal, carries out a CS business in described CS territory;
Receiving element 501, the time delay also sent for receiving moving exchanging center MSC returns the instruction in LTE territory, and described instruction is used to indicate mobile terminal after completing a described CS business, continues to reside in CS territory;
Described CS business performance element 503, the time delay also for receiving according to receiving element 501 returns the instruction in LTE territory, continues to reside in CS territory, and carries out the 2nd CS business in CS territory;
Return unit 504, for after described 2nd CS service ending, return to LTE territory.
Further, the time delay that receiving element 501 receives returns the instruction in LTE territory, by the time of MSC from subscription data knows the 2nd CS business and the difference of a described CS service ending time, sends when the difference of described time is less than predetermined time threshold value; Or
The time delay that receiving element 501 receives returns the instruction in LTE territory, by the type of service of MSC according to a CS business, and self configuration the type of service of a CS business and the mapping relations of the time started of the 2nd CS business, know the time that the 2nd CS business starts, obtain the difference of described 2nd CS business time started and a described CS service ending time, send when the difference of described time is less than predetermined time threshold value.
It is pointed out that above-mentioned time threshold should be less than after mobile terminal completes a CS business, directly return to LTE territory and fall back to CS territory time sum used.
As shown in Figure 6, be the structure chart of the another kind of mobile terminal that the embodiment of the present invention provides, as shown in Figure 6, described mobile terminal comprises at least one processor 601, communication bus 602, memory 603 and at least one communication interface 604.
Wherein, described communication bus 602 is for the connection that realizes between said modules and communicate, and described communication interface 604 is for being connected with external equipment and communicating.
Wherein, described memory 603 is for storing the program code needing to perform, these program codes specifically can comprise: circuit domain dropping unit 6031, receiving element 6032, CS business performance element 6033, return unit 6034, when said units is performed by described processor 601, realize following function:
Receiving element 6031, for receiving the CSFB instruction that MME sends;
Circuit domain dropping unit 6032, for the described CSFB instruction received according to described receiving element, by Long Term Evolution LTE domain dropping to circuit-switched CS domain;
CS business performance element 6033, after falling back to CS territory at described mobile terminal, carries out a CS business in described CS territory;
Receiving element 6031, the time delay also sent for receiving moving exchanging center MSC returns the instruction in LTE territory, and described instruction is used to indicate mobile terminal after completing a described CS business, continues to reside in CS territory;
Described CS business performance element 6033, the time delay also for receiving according to receiving element 6031 returns the instruction in LTE territory, continues to reside in CS territory, and carries out the 2nd CS business in CS territory;
Return unit 6034, for after described 2nd CS service ending, return to LTE territory.
Further, the time delay that receiving element 6031 receives returns the instruction in LTE territory, by the time of MSC from subscription data knows the 2nd CS business and the difference of a described CS service ending time, sends when the difference of described time is less than predetermined time threshold value; Or
The time delay that receiving element 6031 receives returns the instruction in LTE territory, by the type of service of MSC according to a CS business, and self configuration the type of service of a CS business and the mapping relations of the time started of the 2nd CS business, know the time that the 2nd CS business starts, obtain the difference of described 2nd CS business time started and a described CS service ending time, send when the difference of described time is less than predetermined time threshold value.
It is pointed out that above-mentioned time threshold should be less than after mobile terminal completes a CS business, directly return to LTE territory and fall back to CS territory time sum used.
The mobile terminal that the embodiment of the present invention provides, when mobile terminal needs to carry out twice in succession or more time CS business, postpone to return to LTE territory, thus decrease and unnecessary turn back to LTE by CS territory, and the time delay falling back to CS by LTE again and cause and signaling consumption.
As shown in Figure 7, the embodiment of the present invention provides a kind of mobile switching centre, comprising:
One CS Service Processing Unit 701, for after mobile terminal is from Long Term Evolution LTE domain dropping to CS territory, carries out a CS business alternately with described mobile terminal;
Transmitting element 702, for returning the instruction in LTE territory to described mobile terminal forward delay interval, described instruction is used to indicate after described mobile terminal completes a described CS business, continues to reside in CS territory;
2nd CS business unit 703, for receiving after described time delay returns the instruction in LTE territory at described mobile terminal, carries out the 2nd CS business alternately with the described mobile terminal continuing to reside in CS territory.
Further, this mobile switching centre can also comprise acquiring unit, for:
The difference of time the 2nd CS business and a described CS service ending time is obtained from the subscription data of user corresponding to described mobile terminal, when the difference of described time is less than predetermined time threshold value, notify that described transmitting element 702 sends the instruction that described time delay returns to LTE territory; Or
According to the type of service of a CS business, obtain the time started of the two CS business corresponding with the type of service of a described CS business, obtain the difference of described 2nd CS business time started and a described CS service ending time, when the difference of described time is less than predetermined time threshold value, notify that described transmitting element 702 sends the instruction that described time delay returns to LTE territory.
As shown in Figure 8, be the structure chart of the another kind of mobile switching centre that the embodiment of the present invention provides, as shown in Figure 8, described mobile terminal comprises at least one processor 801, communication bus 802, memory 803 and at least one communication interface 804.
Wherein, described communication bus 802 is for the connection that realizes between said modules and communicate, and described communication interface 804 is for being connected with external equipment and communicating.
Wherein, described memory 803 is for storing the program code needing to perform, these program codes specifically can comprise: a CS Service Processing Unit 8031, transmitting element 8032, the 2nd CS Service Processing Unit 8033, when said units is performed by described processor 801, realize following function:
One CS Service Processing Unit 701, for after mobile terminal is from Long Term Evolution LTE domain dropping to CS territory, carries out a CS business alternately with described mobile terminal;
Transmitting element 702, for returning the instruction in LTE territory to described mobile terminal forward delay interval, described instruction is used to indicate after described mobile terminal completes a described CS business, continues to reside in CS territory;
2nd CS business unit 703, for receiving after described time delay returns the instruction in LTE territory at described mobile terminal, carries out the 2nd CS business alternately with the described mobile terminal continuing to reside in CS territory.
The mobile switching centre that the embodiment of the present invention provides, when mobile terminal needs to carry out twice in succession or more time CS business, by returning to LTE territory to mobile terminal transmission lag, thus decrease and unnecessary turn back to LTE by CS territory, and the time delay falling back to CS by LTE again and cause and signaling consumption.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that all or part of step in above-described embodiment method can add required general hardware platform by software and realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for device embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, the implementation of each unit concrete function illustrates see the part of embodiment of the method.Device embodiment described above is only schematic, the unit wherein illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
In a word, the foregoing is only the preferred embodiment of technical solution of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a business switch method, is characterized in that, comprising:
The circuit domain dropping CSFB that mobile terminal receiving mobility management entity MME sends indicates, and according to described CSFB instruction from Long Term Evolution LTE domain dropping to circuit-switched CS domain, and carries out a CS business in CS territory;
Receive the time delay that moving exchanging center MSC sends and return the instruction in LTE territory, the instruction that described time delay returns to LTE territory is used to indicate after described mobile terminal completes a described CS business, continues to reside in CS territory;
Return the instruction in LTE territory according to described time delay, continue to reside in CS territory, and carry out the 2nd CS business in CS territory;
Mobile terminal returns to LTE territory.
2. method according to claim 1, it is characterized in that, the instruction that described time delay returns to LTE territory is obtained the difference of time the 2nd CS business and a described CS service ending time from the subscription data of user corresponding to described mobile terminal by MSC, send when the difference of described time is less than predetermined time threshold value.
3. method according to claim 1, it is characterized in that, described time delay returns the instruction in LTE territory by the type of service of MSC according to a CS business, obtain the time started of the two CS business corresponding with the type of service of a described CS business, obtain the difference of described 2nd CS business time started and a described CS service ending time, send when the difference of described time is less than predetermined time threshold value.
4. according to the method in claim 2 or 3, it is characterized in that, described time threshold is less than mobile terminal and returns to LTE territory from CS territory and by the LTE domain dropping time sum used to CS territory.
5. method according to claim 1, is characterized in that, described mobile terminal, after carrying out the 2nd CS business, before returning to LTE territory, comprises further:
The time delay receiving MSC transmission returns the instruction in LTE territory, resides in CS territory and carries out the 3rd CS business.
6. a mobile terminal, is characterized in that, comprising:
Receiving element, the circuit domain dropping CSFB sent for receiving mobility management entity MME indicates;
Circuit domain dropping unit, for the described CSFB instruction received according to described receiving element, by Long Term Evolution LTE domain dropping to circuit-switched CS domain;
CS business performance element, after falling back to CS territory at described mobile terminal, carries out a CS business in described CS territory;
Described receiving element, the time delay also sent for receiving moving exchanging center MSC returns the instruction in LTE territory, and the instruction that described time delay returns to LTE territory is used to indicate described mobile terminal after completing a CS business, continues to reside in CS territory;
Described CS business performance element, the time delay also for receiving according to receiving element returns the instruction in LTE territory, continues to reside in CS territory, and carries out the 2nd CS business in CS territory;
Return unit, for returning to LTE territory.
7. mobile terminal according to claim 6, it is characterized in that, the time delay that described receiving element receives returns the instruction in LTE territory, sends after the difference of the time of MSC from subscription data knows the 2nd CS business and a described CS service ending time is less than predetermined time threshold value.
8. mobile terminal according to claim 6, it is characterized in that, the time delay that described receiving element receives returns the instruction in LTE territory, by the type of service of MSC according to a CS business, and the type of service of a CS business of self configuration and the mapping relations of the time started of the 2nd CS business, send after the difference of the time that the 2nd CS business that obtains starts and a described CS service ending time is less than predetermined time threshold value.
9. the mobile terminal according to claim 7 or 8, is characterized in that, described time threshold is less than after mobile terminal completes a CS business, directly returns to LTE territory and by the LTE domain dropping time sum used to CS territory.
10. a mobile switching centre, is characterized in that, comprising:
First circuit switching (CS) Service Processing Unit, for after mobile terminal is from Long Term Evolution LTE domain dropping to CS territory, carries out a CS business alternately with described mobile terminal;
Transmitting element, for returning the instruction in LTE territory to described mobile terminal forward delay interval, the instruction that described time delay returns to LTE territory is used to indicate after described mobile terminal completes a described CS business, continues to reside in CS territory;
2nd CS business unit, for receiving after described time delay returns the instruction in LTE territory at described mobile terminal, carries out the 2nd CS business alternately with the described mobile terminal continuing to reside in CS territory.
11. mobile switching centres according to claim 10, is characterized in that, described mobile switching centre comprises further:
Acquiring unit, for obtaining the difference of time the 2nd CS business and a described CS service ending time from the subscription data of user corresponding to described mobile terminal, when the difference of described time is less than predetermined time threshold value, notify that described transmitting element sends the instruction that described time delay returns to LTE territory.
12. mobile switching centres according to claim 10, is characterized in that, described mobile switching centre comprises further:
Acquiring unit, for the type of service according to a CS business, obtain the time started of the two CS business corresponding with the type of service of a described CS business, obtain the difference of described 2nd CS business time started and a described CS service ending time, when the difference of described time is less than predetermined time threshold value, notify that described transmitting element sends the instruction that described time delay returns to LTE territory.
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| CN201210586762.5A CN103024846B (en) | 2012-12-28 | 2012-12-28 | Business switching method, mobile terminal and mobile switching center |
| PCT/CN2013/082018 WO2014101438A1 (en) | 2012-12-28 | 2013-08-22 | Service handover method, mobile terminal, and mobile switching center |
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| CN201210586762.5A CN103024846B (en) | 2012-12-28 | 2012-12-28 | Business switching method, mobile terminal and mobile switching center |
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| CN103024846B (en) * | 2012-12-28 | 2015-07-08 | 华为技术有限公司 | Business switching method, mobile terminal and mobile switching center |
| WO2014198070A1 (en) * | 2013-06-14 | 2014-12-18 | 华为技术有限公司 | Method and device for realizing csfb |
| CN103491586B (en) * | 2013-08-30 | 2017-09-29 | 中国联合网络通信集团有限公司 | Network switching control method and base station |
| WO2015106809A1 (en) * | 2014-01-15 | 2015-07-23 | Telefonaktiebolaget L M Ericsson (Publ) | Handling of radio access network re-selection |
| CN104301950B (en) * | 2014-09-24 | 2018-12-07 | 华为技术有限公司 | The implementation method and relevant apparatus of CS business in a kind of LTE network |
| WO2016106074A1 (en) * | 2014-12-23 | 2016-06-30 | Bandwidth.Com, Inc. | Techniques for executing a handoff profile between telecommunications networks |
| CN107006069A (en) * | 2015-08-17 | 2017-08-01 | 华为技术有限公司 | A kind of method and device of circuit domain dropping |
| US9788241B2 (en) * | 2015-12-21 | 2017-10-10 | Intel IP Corporation | Device and method for user originated multiple connection management transactions via circuit switched fallback |
| CN111510881B (en) * | 2020-04-20 | 2022-07-15 | Oppo广东移动通信有限公司 | Information sending method, device, terminal and storage medium |
| CN114040461A (en) * | 2021-11-26 | 2022-02-11 | 维沃移动通信有限公司 | Call method and device |
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| CN101500212B (en) * | 2008-02-01 | 2011-07-06 | 华为技术有限公司 | Method, apparatus and system for processing circuit domain service by packet domain user |
| EP2443869B1 (en) * | 2009-06-16 | 2014-08-27 | BlackBerry Limited | Method for accessing a service unavailable through a network cell |
| CN103024846B (en) * | 2012-12-28 | 2015-07-08 | 华为技术有限公司 | Business switching method, mobile terminal and mobile switching center |
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| CN101222765A (en) * | 2008-01-24 | 2008-07-16 | 中兴通讯股份有限公司 | Control method, system and device for circuit field fall-back |
| CN102547629A (en) * | 2010-12-13 | 2012-07-04 | 中兴通讯股份有限公司 | Voice call rollback processing method, device and system |
| CN102547653A (en) * | 2011-12-31 | 2012-07-04 | 中兴通讯股份有限公司 | Method and system for reducing times of terminal falling to circuit switching network |
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| CN103024846A (en) | 2013-04-03 |
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