CN103024846A - 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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- 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]
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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, relate in particular to a kind of business switch method, portable terminal and mobile switching centre.
Background technology
At present mobile communications network the 2/3G network to Long Term Evolution (Long Term Evolution, LTE) network Development, for the resources such as the covering of the existing 2/3G network of maximum using and quality of service, the investment interests maximization of protection operator.Long Term Evolution (Long Term Evolution, LTE) core net of system has only kept grouping (Packet Switched, PS) territory, block core (the Evolved PacketCore that is called evolution, EPC) network, the packet core network of evolution mainly comprises MME, gateway (ServingGateway, S-GW), three logic entities of grouped data network gateway (Packet Data Network Gateway, PGW).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 the packet core network of universal terrestrial access network (Universal Terrestrial Radio Access Network, UTRAN) (being abbreviated as GERAN/UTRAN) access evolution.
The LTE network design initial stage generally is that LTE does the focus covering, mainly carries out data service, such 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 the 2/3G network.Circuit domain dropping (CS Fallback, CSFB) is namely realized this function, carries out the relevant business of CS, automatic fast return LTE network after the CS business is finished so that portable terminal when quartering at the LTE network, can fall back to the CS territory.
By the analysis to prior art, the inventor thinks that there is following problem at least in prior art:
By existing CSFB scheme, when falling back to after the CS territory carried out CS business, if one more or repeatedly CS is professional and then, then portable terminal still will return the LTE network, fall back to again CS territory network and carry out the CS business second time, increased like this time delay and the signaling consumption of follow-up business.
Summary of the invention
For overcoming the defective of prior art, the purpose of the embodiment of the invention is to provide a kind of business switch method, portable terminal and mobile switching centre, so that under the CSFB scene, after portable terminal has carried out CS business, in the time of need to carrying out in succession follow-up CS business, avoid repeatedly switching the time delay and the signaling consumption that cause.
First aspect, the embodiment of the invention provide a kind of professional method of switching, and comprising:
The circuit domain dropping CSFB indication that portable terminal receiving mobility management entity MME sends is indicated from Long Term Evolution LTE domain dropping to the circuit switching (CS) territory according to described CSFB, and carries out CS business in the CS territory;
Receive time-delay that moving exchanging center MSC sends and return the instruction in LTE territory, described instruction is used to indicate described portable terminal finish a described CS business after, continue to reside in the CS territory;
Return the instruction in LTE territory according to described time-delay, continue to reside in the CS territory, and carry out the 2nd CS in the CS territory professional;
Portable terminal returns the LTE territory.
In the possible implementation of the first of first aspect, the instruction that the LTE territory is returned in described time-delay obtains the poor of time of the professional beginning of the 2nd CS and a described CS service ending time by MSC from user corresponding to described portable terminal subscription data, when the difference of described time sent during threshold value less than predetermined time.
In the possible implementation of the second of first aspect, described time-delay is returned 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 poor of professional time started of described the 2nd CS and a described CS service ending time, when the difference of described time sent during threshold value less than predetermined time.
Second aspect, the embodiment of the invention provide a kind of portable terminal, comprising:
Receiving element is used for the circuit domain dropping CSFB indication that receiving mobility management entity MME sends;
The circuit domain dropping unit is used for the described CSFB indication that receives according to described receiving element, by Long Term Evolution LTE domain dropping to the circuit switching (CS) territory;
The professional performance element of CS is used for after described portable terminal falls back to the CS territory, carries out CS business in described CS territory;
Described receiving element, the instruction in LTE territory is returned in the time-delay that also is used for the transmission of reception moving exchanging center MSC, and described instruction is used to indicate described portable terminal after finishing a CS business, continues to reside in the CS territory;
The professional performance element of described CS also is used for returning according to the time-delay that receiving element receives the instruction in LTE territory, continues to reside in the CS territory, and carries out the 2nd CS business in the CS territory;
Return the unit, be used for returning the LTE territory.
In the possible implementation of the first of second aspect, the instruction in LTE territory is returned in the time-delay that described receiving element receives, and the difference that is obtained time of the professional beginning of the 2nd CS and a described CS service ending time by MSC from subscription data corresponding to described portable terminal sends less than after the predetermined time threshold value.
In the possible implementation of the second of second aspect, the instruction in LTE territory is returned in the time-delay that described receiving element receives, by the type of service of MSC according to a CS business, and the mapping relations of the time started of type of service and the 2nd CS business of a CS business of self configuration, the difference that obtains the professional time that begins of the 2nd CS and a described CS service ending time sends less than after the predetermined time threshold value.
The third aspect, the embodiment of the invention provide a kind of mobile switching centre, comprising:
The first circuit switching (CS) Service Processing Unit, be used for portable terminal from Long Term Evolution LTE domain dropping behind the CS territory, to carry out alternately a CS professional with described portable terminal;
Transmitting element is used for returning to described portable terminal forward delay interval the instruction in LTE territory, described instruction is used to indicate described portable terminal finish a described CS business after, continue to reside in the CS territory;
The 2nd CS business unit is used for after described portable terminal receives described time-delay and returns the instruction in LTE territory, and to carry out alternately the 2nd CS professional with the described portable terminal that continues to reside in the CS territory.
In the possible implementation of the first of the third aspect, described mobile switching centre further comprises:
Acquiring unit, be used for obtaining the poor of the professional time that begins of the 2nd CS and a described CS service ending time from user corresponding to described portable terminal subscription data, when the difference of described time less than predetermined time during threshold value, notify described transmitting element to send the instruction that the LTE territory is returned in described time-delay.
In the possible implementation of the second of the third aspect, described mobile switching centre further comprises:
Acquiring unit, be used 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 poor of professional time started of described the 2nd CS and a described CS service ending time, when the difference of described time less than predetermined time during threshold value, notify described transmitting element to send the instruction that the LTE territory is returned in described time-delay.
The business switch method that the embodiment of the invention provides, portable terminal and mobile switching centre, after portable terminal has carried out CS business, in the time of need to carrying out in succession follow-up CS business, by postponing to return the LTE territory, avoided unnecessary by the CS territory to the LTE territory, and carry out follow-up CS professional and the time delay and the signaling consumption that cause to the CS territory by the LTE domain dropping.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of business switch method flow chart figure that Fig. 1 provides for the embodiment of the invention;
The another kind of business switch method flow chart figure that Fig. 2 provides for the embodiment of the invention;
Another business switch method flow chart figure that Fig. 3 provides for the embodiment of the invention;
Another business switch method flow chart figure that Fig. 4 provides for the embodiment of the invention;
The structural representation of a kind of portable terminal that Fig. 5 provides for the embodiment of the invention;
The structural representation of another portable terminal that Fig. 6 provides for the embodiment of the invention.
The structural representation of a kind of mobile switching centre that Fig. 7 provides for the embodiment of the invention;
The structural representation of another mobile switching centre that Fig. 8 provides for the embodiment of the invention.
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 a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, a kind of business switch method schematic diagram for the embodiment of the invention provides comprises:
S101, the CS territory is fallen back in the CSFB indication that portable terminal receiving mobility management entity MME sends, and carries out CS business in the CS territory;
Move according to described CSFB and indicate from the LTE domain dropping to the circuit switching (CS) territory, and carry out CS business in the CS territory.
S102 receives the instruction that the LTE territory is returned in time-delay that moving exchanging center MSC sends, described instruction is used to indicate portable terminal finish a described CS business after, continue to reside in the CS territory;
Here, time-delay is returned the instruction in LTE territory can know time of the professional beginning of the 2nd CS and a described CS service ending time by MSC from subscription data difference and is sent less than after the predetermined time threshold value; Concrete, it is professional to be set with the 2nd CS in the user's that described portable terminal the is corresponding subscription data, and the 2nd CS business is the business that will continue to carry out after the CS service ending in the predetermined time section.Alternatively, can also be set with the concrete time that the 2nd CS business begins to carry out in the user's that described portable terminal the is corresponding subscription data, calculate the poor of professional time started of this 2nd CS and a CS service ending time with this time.
Also can be by the type of service of MSC according to a CS business, and the mapping relations of the time started of the type of service of a CS business that self disposes and the 2nd CS business, obtain the time started of the 2nd CS business, and the difference of the time of knowing the professional beginning of the 2nd CS and a described CS service ending time is returned the instruction in LTE territory less than this time-delay of transmission after the predetermined time threshold value.
S103 returns the instruction in LTE territory according to described time-delay, continues to reside in the CS territory, and carry out the 2nd CS in the CS territory professional;
Concrete, when can arriving the professional time that begins of the 2nd CS in subscription data, the 2nd CS business carries out.
S104, portable terminal return the LTE territory.
Concrete, can be after the 2nd CS service ending, portable terminal returns the LTE territory.Optionally, in the time and then also need carrying out the 3rd CS business after the 2nd CS business, portable terminal can be after the 2nd CS service ending, judge that again whether the difference of concluding time of time started of the 3rd CS business and the 2nd CS business is less than scheduled time threshold value, if less than scheduled time threshold value, then portable terminal again reception delay return the instruction in LTE territory, continue to reside in the CS territory, it is professional to finish the 3rd CS.Whether the difference of the concrete time started of judging the 3rd CS business and the concluding time of the 2nd CS business less than the method for scheduled time threshold value, can with reference to the description of S102, not repeat them here.Certainly, it is professional that the embodiment of the invention is not limited to two or three CS, also can be professional for more CS, and principle is the same.
In the embodiment of the invention portable terminal in the difference of time of the professional beginning of the 2nd CS and a CS service ending time less than predetermined time during threshold value, return the instruction in LTE territory by reception delay, after finishing a described CS business, reside in the CS territory and finish the 2nd CS business, return again the LTE territory.Avoided unnecessary and returned the LTE territory from the CS territory, and it is professional to carry out the 2nd CS to the CS territory by the LTE domain dropping, thus the time delay that causes and signaling consumption.
As shown in Figure 2, the embodiment of the invention provides a kind of professional method of switching, and comprising:
S201, portable terminal sends the expansion service request message through evolution base station eNodeB to MME;
This expansion service request can comprise the parameter that triggering mobile terminals is carried out the CS domain dropping.
S202, MME returns modify request messages to eNodeB, carries the CSFB indication;
S203, eNodeB sends RRC Release message to portable terminal;
Here, RRC Release message is carried the CSFB indication, and the notice portable terminal falls back to the CS territory.
S204 sets up CS and connects;
Portable terminal is set up CS by base station controller with MSC and is connected.
S205 carries out CS business;
MSC judges after a CS service ending whether also have the 2nd CS professional.If after a CS service ending, there is not the 2nd CS professional, then forward S208 to, portable terminal returns the LTE territory immediately.
As after a CS service ending, also have the 2nd CS professional, and the difference of the time of the professional beginning of the 2nd CS and the time between the described CS service ending time is then carried out S206 less than the predetermined time threshold value;
Concrete determination methods can be from attaching position register (Home LocationRegister by MSC, HLR) or VLR Visitor Location Register (Visit Location Register, VLR) or service control point (Service Control Point, SCP) obtain user's subscription data, from there being after subscription data can be informed in a CS business the 2nd CS professional, and can obtain time poor of professional time started of the 2nd CS and a CS service ending from subscription data.When the difference of time of the professional beginning of the 2nd CS and the time between the described CS service ending time less than predetermined time threshold value when (as less than 5 seconds), execution S206; After this time threshold is finished a CS business less than portable terminal, directly return the LTE territory and fall back to the used time sum in CS territory.
In addition, MSC can also be according to the configuration of self, and the type of service of a CS business, the time started of obtaining the 2nd CS business.Particularly, MSC disposes the mapping relations between time started of the type of service of a CS business and the 2nd CS business, type of service by the first business, obtain the time started of the second business, can obtain the concluding time of a CS business because of MSC, and then if whether the difference that can judge the time between concluding time of time started of the 2nd CS business and a CS business less than this time threshold, then carries out S206 less than the predetermined time threshold value;
It is pointed out that a CS here is professional, perhaps the 2nd CS is professional, refers to all that once complete CS is professional, such as complete audio call flow process, or complete supplementary service flow process.
S206, MSC is to the instruction that the LTE territory is returned in time-delay of carrying of portable terminal transmission;
The instruction that the LTE territory is returned in this time-delay is used for informing portable terminal after having carried out the CS business first time, continues to reside in the CS territory and do not return at once the LTE territory, and proceed the 2nd CS in the CS territory professional;
Particularly, can carry the instruction that the LTE territory is returned in this delay by clear command ClearCommand message.
S207 carries out the 2nd CS business in the CS territory;
After portable terminal receives time-delay and returns the instruction in LTE territory, continue to reside in the CS territory, and carry out the 2nd CS in the CS territory professional.
S208, portable terminal return the LTE territory.
After the 2nd CS service ending, portable terminal returns the LTE territory.
Above-mentioned steps S201-S204 be standard by the flow process of LTE domain dropping to the CS territory, S208 also returns the flow process of LTE for the CS territory of standard.Wherein, the method for returning the LTE territory can send tracing section updating message to MME for, portable terminal, MME sends location update request message to MSC, accept the position renewal response that MSC returns, and then accept message to portable terminal transmission tracing section updating, portable terminal returns the LTE territory.
Certainly, if after the 2nd CS service ending, also have in succession CS professional, then can after S207, with reference to S205, again judge the time started of the 3rd CS business and the concluding time of the 2nd CS business, if the concluding 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, portable terminal continues to reside in the CS territory, carries out the 3rd CS business.Certainly, it is professional that the embodiment of the invention is not limited to two or three CS, also can be professional for more CS, and principle is the same.
Like this, when portable terminal need to carry out twice or more times CS when professional in succession, postpone to return the LTE territory, unnecessary turn back to LTE by the CS territory thereby reduce, and fall back to CS by LTE again and the time delay and the signaling consumption that cause.
As shown in Figure 3, the embodiment of the invention provides the another kind of professional method of switching.After portable terminal is finished the CS voice calling service, directly carry out unstructured supplementary data traffic (UnstructedSupplementary Service Data, USSD) business, do not return immediately LTE.Specifically comprise:
S301, portable terminal sends the expansion service request message through eNodeB to MME;
S302, MME return something for repairs to eNodeB and change request message, carry the CSFB indication;
S303, eNodeB sends RRC Release message to portable terminal;
Here, RRC Release message is carried the CSFB indication, and the notice portable terminal falls back to the CS territory.
S304 sets up CS and connects;
Portable terminal is set up CS by base station controller with MSC and is connected.
S305 carries out the CS voice calling service;
Particularly, MSC can obtain user contracting data from HLR or VLR or SCP, and a field is arranged in this user's the CAMEL-Subscription-Information, represent that this voice calling service is finished after, the user will know the telephone expenses state, needs the telephone expenses state by USSD service announcements user.Another field of CAMEL-Subscription-Information can show the time difference between professional time started of USSD and the CS voice call end.When the time difference less than predetermined time during threshold value, then next carry out S306.Here, the USSD business is a kind of supplementary service, also is that a kind of CS is professional.Concrete, the process that MSC obtains subscription data is normal process, the present invention repeats no more.
S306, MSC send to portable terminal and carry the instruction that the LTE territory is returned in time-delay;
The instruction that the LTE territory is returned in this time-delay is used for informing portable terminal after having carried out the CS voice calling service, resides in the CS territory and do not return at once the LTE territory, proceeds the USSD business in the CS territory;
Particularly, can carry the instruction that the LTE territory is returned in this delay by clear command ClearCommand message.
S307 carries out the USSD business;
The instruction in LTE territory is returned in the time-delay that portable terminal sends according to MSC, after the CS voice calling service finishes, does not return the LTE territory, directly carries out the USSD business, knows the user telephone fee state.
S308 returns the LTE territory.
After the USSD service ending, portable terminal returns the LTE territory.
The method of specifically returning LTE can be the flow process of standard, portable terminal sends tracing section updating message to MME, and MME sends location update request message to MSC, accepts the position renewal response that MSC returns, and then send tracing section updating to portable terminal and accept message, portable terminal returns the LTE territory.Concrete USSD business also is the flow process of standard, does not repeat them here.
Method by present embodiment, portable terminal is after the CS voice call finishes, do not return immediately LTE, but after finishing, the USSD business returns the LTE territory, thereby reduced and unnecessary turned back to the LTE territory from the CS territory, and the LTE domain dropping carries out USSD again behind the CS territory, and the time delay that causes and signaling consumption.
As shown in Figure 4, the embodiment of the invention provides another professional method of switching.After portable terminal is finished the USSD business, directly carry out voice calling service, do not return immediately LTE.Specifically comprise:
S401, portable terminal sends the expansion service request message through eNodeB to MME;
S402, MME return something for repairs to eNodeB and change request message, carry the CSFB indication;
S403, eNodeB sends RRC Release message to portable terminal;
Here, RRC Release message is carried the CSFB indication, and the notice portable terminal falls back to the CS territory.
S404 sets up CS and connects;
Portable terminal is set up CS by base station controller with MSC and is connected.
S405, portable terminal carries out the USSD business;
Particularly, MSC can know that by resolving USSD message this professional type of service is that USSD is professional.Mapping relations according to time started of the type of service of the USSD business of MSC configuration and CS voice calling service, know the time that the CS voice calling service begins after the USSD business, can obtain the concluding time of USSD business because of MSC, if the difference of CS voice calling service time started and USSD service ending time less than the predetermined time threshold value, is then carried out S406.
Here, this predetermined time threshold value should return the LTE territory less than portable terminal, and again fall back to the used time sum in CS territory.In addition, the CS voice calling service after the USSD business can be call-back service, or voice mailbox service, and the embodiment of the invention is not restricted at this.
S406, MSC send to portable terminal and carry the instruction that the LTE territory is returned in time-delay;
The instruction that the LTE territory is returned in this time-delay is used for informing portable terminal after having carried out the USSD business, resides in the CS territory and do not return at once the LTE territory, proceeds the CS voice calling service in the CS territory;
Particularly, can carry the instruction that the LTE territory is returned in this delay by clear command ClearCommand message.
S407 carries out the CS voice calling service;
The instruction in LTE territory is returned in the time-delay that portable terminal sends according to MSC, after the USSD service ending, does not return the LTE territory, directly carries out the CS voice calling service.
S408 returns the LTE territory.
After the CS voice calling service finished, portable terminal returned the LTE territory.
Specifically return LTE method can for, portable terminal sends tracing section updating message to MME, and MME sends location update request message to MSC, accepts the position renewal response that MSC returns, and then send tracing section updating to portable terminal and accept message, portable terminal returns the LTE territory.
Certainly, the embodiment of the invention is not limited to the USSD business, also can be other CS supplementary service.
Method by present embodiment, portable terminal does not return LTE immediately after the USSD service ending, but returns the LTE territory after ensuing CS voice calling service is finished, thereby reduced unnecessary CS territory to the LTE territory, and LTE the domain dropping time delay and the signaling consumption that cause to the CS territory.
As shown in Figure 5, the embodiment of the invention provides a kind of portable terminal, comprising:
Receiving element 501 is used for receiving the CSFB indication that MME sends;
Circuit domain dropping unit 502 is used for the described CSFB indication that receives according to described receiving element, by Long Term Evolution LTE domain dropping to the circuit switching (CS) territory;
The professional performance element 503 of CS is used for after described portable terminal falls back to the CS territory, carries out CS business in described CS territory;
Receiving element 501, the instruction in LTE territory is returned in the time-delay that also is used for the transmission of reception moving exchanging center MSC, and described instruction is used to indicate portable terminal after finishing a described CS business, continues to reside in the CS territory;
The professional performance element 503 of described CS also is used for returning according to the time-delay that receiving element 501 receives the instruction in LTE territory, continues to reside in the CS territory, and carries out the 2nd CS business in the CS territory;
Further, the instruction in LTE territory is returned in the time-delay that receiving element 501 receives, and knows the poor of time of the professional beginning of the 2nd CS and a described CS service ending time by MSC from subscription data, when the difference of described time sent during threshold value less than predetermined time; Perhaps
The instruction in LTE territory is returned in the time-delay that receiving element 501 receives, by the type of service of MSC according to a CS business, and the mapping relations of the time started of the type of service of a CS business that self disposes and the 2nd CS business, know the time of the professional beginning of the 2nd CS, obtain the poor of professional time started of described the 2nd CS and a described CS service ending time, when the difference of described time sent during threshold value less than predetermined time.
After it is pointed out that above-mentioned time threshold should be finished a CS business less than portable terminal, directly return the LTE territory and fall back to the used time sum in CS territory.
As shown in Figure 6, the structure chart of the another kind of portable terminal that provides for the embodiment of the invention, as shown in Figure 6, described portable 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 used for connection and the communication between the realization said modules, and described communication interface 604 is used for being connected with external equipment and communicating by letter.
Wherein, described memory 603 is used for the program code that storage needs execution, these program codes specifically can comprise: the professional performance element 6033 in circuit domain dropping unit 6031, receiving element 6032, CS, return unit 6034, when said units is carried out by described processor 601, be achieved as follows function:
Receiving element 6031 is used for receiving the CSFB indication that MME sends;
Circuit domain dropping unit 6032 is used for the described CSFB indication that receives according to described receiving element, by Long Term Evolution LTE domain dropping to the circuit switching (CS) territory;
The professional performance element 6033 of CS is used for after described portable terminal falls back to the CS territory, carries out CS business in described CS territory;
Receiving element 6031, the instruction in LTE territory is returned in the time-delay that also is used for the transmission of reception moving exchanging center MSC, and described instruction is used to indicate portable terminal after finishing a described CS business, continues to reside in the CS territory;
The professional performance element 6033 of described CS also is used for returning according to the time-delay that receiving element 6031 receives the instruction in LTE territory, continues to reside in the CS territory, and carries out the 2nd CS business in the CS territory;
Further, the instruction in LTE territory is returned in the time-delay that receiving element 6031 receives, and knows the poor of time of the professional beginning of the 2nd CS and a described CS service ending time by MSC from subscription data, when the difference of described time sent during threshold value less than predetermined time; Perhaps
The instruction in LTE territory is returned in the time-delay that receiving element 6031 receives, by the type of service of MSC according to a CS business, and the mapping relations of the time started of the type of service of a CS business that self disposes and the 2nd CS business, know the time of the professional beginning of the 2nd CS, obtain the poor of professional time started of described the 2nd CS and a described CS service ending time, when the difference of described time sent during threshold value less than predetermined time.
After it is pointed out that above-mentioned time threshold should be finished a CS business less than portable terminal, directly return the LTE territory and fall back to the used time sum in CS territory.
The portable terminal that the embodiment of the invention provides, when portable terminal need to carry out twice or more times CS when professional in succession, postpone to return the LTE territory, unnecessary turn back to LTE by the CS territory thereby reduced, and fall back to CS by LTE again and the time delay and the signaling consumption that cause.
As shown in Figure 7, the embodiment of the invention provides a kind of mobile switching centre, comprising:
The one CS Service Processing Unit 701, be used for portable terminal from Long Term Evolution LTE domain dropping behind the CS territory, to carry out alternately a CS professional with described portable terminal;
Transmitting element 702 is used for returning to described portable terminal forward delay interval the instruction in LTE territory, described instruction is used to indicate described portable terminal finish a described CS business after, continue to reside in the CS territory;
The 2nd CS business unit 703 is used for after described portable terminal receives described time-delay and returns the instruction in LTE territory, and to carry out alternately the 2nd CS professional with the described portable terminal that continues to reside in the CS territory.
Further, this mobile switching centre can also comprise acquiring unit, is used for:
Obtain the poor of the professional time that begins of the 2nd CS and a described CS service ending time from user corresponding to described portable terminal subscription data, when the difference of described time less than predetermined time during threshold value, notify described transmitting element 702 to send the instruction that the LTE territory is returned in described time-delay; Perhaps
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 poor of professional time started of described the 2nd CS and a described CS service ending time, when the difference of described time less than predetermined time during threshold value, notify described transmitting element 702 to send the instruction that the LTE territory is returned in described time-delay.
As shown in Figure 8, the structure chart of the another kind of mobile switching centre that provides for the embodiment of the invention, as shown in Figure 8, described portable 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 used for connection and the communication between the realization said modules, and described communication interface 804 is used for being connected with external equipment and communicating by letter.
Wherein, described memory 803 is used for the program code that storage needs execution, 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 carried out by described processor 801, are achieved as follows function:
The one CS Service Processing Unit 701, be used for portable terminal from Long Term Evolution LTE domain dropping behind the CS territory, to carry out alternately a CS professional with described portable terminal;
Transmitting element 702 is used for returning to described portable terminal forward delay interval the instruction in LTE territory, described instruction is used to indicate described portable terminal finish a described CS business after, continue to reside in the CS territory;
The 2nd CS business unit 703 is used for after described portable terminal receives described time-delay and returns the instruction in LTE territory, and to carry out alternately the 2nd CS professional with the described portable terminal that continues to reside in the CS territory.
The mobile switching centre that the embodiment of the invention provides, when portable terminal need to carry out twice or more times CS when professional in succession, by returning the LTE territory to the portable terminal transmission lag, thereby reduced unnecessary turning back to LTE by the CS territory, and fallen back to CS by LTE again and the time delay and the signaling consumption that cause.
As seen through the above description of the embodiments, those skilled in the art's all or part of step that can be well understood in above-described embodiment method can realize by the mode that software adds essential general hardware platform.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in the storage medium, such as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Need to prove that each embodiment in this specification all adopts the mode of going forward one by one to describe, identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses is difference with other embodiment.Especially, for device embodiment, because its basic simlarity is in embodiment of the method, so describe fairly simplely, the implementation of each unit concrete function gets final product referring to the part explanation of embodiment of the method.Device embodiment described above only is schematic, wherein the unit as the separating component explanation can or can not be physically to separate also, the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of present embodiment scheme.Those of ordinary skills namely can understand and implement in the situation of not paying creative work.
In a word, the above is the preferred embodiment of technical solution of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to 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 indication that portable terminal receiving mobility management entity MME sends is indicated from Long Term Evolution LTE domain dropping to the circuit switching (CS) territory according to described CSFB, and carries out CS business in the CS territory;
Receive time-delay that moving exchanging center MSC sends and return the instruction in LTE territory, described instruction is used to indicate described portable terminal finish a described CS business after, continue to reside in the CS territory;
Return the instruction in LTE territory according to described time-delay, continue to reside in the CS territory, and carry out the 2nd CS in the CS territory professional;
Portable terminal returns the LTE territory.
2. method according to claim 1, it is characterized in that, the instruction that the LTE territory is returned in described time-delay obtains the poor of time of the professional beginning of the 2nd CS and a described CS service ending time by MSC from user corresponding to described portable terminal subscription data, when the difference of described time sent during threshold value less than predetermined time.
3. method according to claim 1, it is characterized in that, described time-delay is returned 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 poor of professional time started of described the 2nd CS and a described CS service ending time, when the difference of described time sent during threshold value less than predetermined time.
4. according to claim 2 or 3 described methods, it is characterized in that described time threshold returns the LTE territory less than portable terminal and by the LTE domain dropping time sum used to the CS territory from the CS territory.
5. method according to claim 1 is characterized in that, described portable terminal returns before the LTE territory after carrying out the 2nd CS business, further comprises:
The instruction in LTE territory is returned in the time-delay that receives the MSC transmission, resides in the CS territory and carries out the 3rd CS business.
6. a portable terminal is characterized in that, comprising:
Receiving element is used for the circuit domain dropping CSFB indication that receiving mobility management entity MME sends;
The circuit domain dropping unit is used for the described CSFB indication that receives according to described receiving element, by Long Term Evolution LTE domain dropping to the circuit switching (CS) territory;
The professional performance element of CS is used for after described portable terminal falls back to the CS territory, carries out CS business in described CS territory;
Described receiving element, the instruction in LTE territory is returned in the time-delay that also is used for the transmission of reception moving exchanging center MSC, and described instruction is used to indicate described portable terminal after finishing a CS business, continues to reside in the CS territory;
The professional performance element of described CS also is used for returning according to the time-delay that receiving element receives the instruction in LTE territory, continues to reside in the CS territory, and carries out the 2nd CS business in the CS territory;
Return the unit, be used for returning the LTE territory.
7. portable terminal according to claim 6, it is characterized in that, the instruction in LTE territory is returned in the time-delay that described receiving element receives, and the difference of being known time of the professional beginning of the 2nd CS and a described CS service ending time by MSC from subscription data sends less than after the predetermined time threshold value.
8. portable terminal according to claim 6, it is characterized in that, the instruction in LTE territory is returned in the time-delay that described receiving element receives, by the type of service of MSC according to a CS business, and the mapping relations of the time started of type of service and the 2nd CS business of a CS business of self configuration, the difference that obtains the professional time that begins of the 2nd CS and a described CS service ending time sends less than after the predetermined time threshold value.
9. according to claim 7 or 8 described portable terminals, it is characterized in that, after described time threshold is finished a CS business less than portable terminal, directly return the LTE territory and by the LTE domain dropping time sum used to the CS territory.
10. a mobile switching centre is characterized in that, comprising:
The first circuit switching (CS) Service Processing Unit, be used for portable terminal from Long Term Evolution LTE domain dropping behind the CS territory, to carry out alternately a CS professional with described portable terminal;
Transmitting element is used for returning to described portable terminal forward delay interval the instruction in LTE territory, described instruction is used to indicate described portable terminal finish a described CS business after, continue to reside in the CS territory;
The 2nd CS business unit is used for after described portable terminal receives described time-delay and returns the instruction in LTE territory, and to carry out alternately the 2nd CS professional with the described portable terminal that continues to reside in the CS territory.
11. mobile switching centre according to claim 10 is characterized in that, described mobile switching centre further comprises:
Acquiring unit, be used for obtaining the poor of the professional time that begins of the 2nd CS and a described CS service ending time from user corresponding to described portable terminal subscription data, when the difference of described time less than predetermined time during threshold value, notify described transmitting element to send the instruction that the LTE territory is returned in described time-delay.
12. mobile switching centre according to claim 10 is characterized in that, described mobile switching centre further comprises:
Acquiring unit, be used 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 poor of professional time started of described the 2nd CS and a described CS service ending time, when the difference of described time less than predetermined time during threshold value, notify described transmitting element to send the instruction that the LTE territory is returned in described time-delay.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
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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 CN103024846B (en) | 2015-07-08 |
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Also Published As
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| WO2014101438A1 (en) | 2014-07-03 |
| CN103024846B (en) | 2015-07-08 |
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