CN103702393B - CSFB (Circuit Switched Fallback) network switching method, MME (Mobile Management Entity) and base station - Google Patents

CSFB (Circuit Switched Fallback) network switching method, MME (Mobile Management Entity) and base station Download PDF

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Publication number
CN103702393B
CN103702393B CN201310693062.0A CN201310693062A CN103702393B CN 103702393 B CN103702393 B CN 103702393B CN 201310693062 A CN201310693062 A CN 201310693062A CN 103702393 B CN103702393 B CN 103702393B
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terminal
cell
mme
business
base station
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CN103702393A (en
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袁晓静
侯玉华
严斌峰
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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Abstract

The invention provides a CSFB (Circuit Switched Fallback) network switching method, an MME (Mobile Management Entity) and a base station. The method comprises the steps that the MME receives a searching result transmitted by the base station, wherein the searching result is obtained by searching 3G (3-Generation) or 2G (2-Generation) cells in a switching process executed by a terminal in an LTE (Long Term Evolution) network; the MME transmits request information of obtaining a terminal state to the base station; the MME receives the terminal state information transmitted by the base station, wherein the state information indicates whether the terminal has a PS (Packet Switched) service or not; the MME selects one or a plurality of 3G or 2G cells which are matched with the service of the terminal from the searching result and stores the 3G or 2G cells in the form of a list; if the terminal needs to perform CSFB, the MME selects a destination 3G or 2G cell from the list, transmits a CSFB command to the base station and transmits the information of the selected destination 3G or 2G cell to the base station to enable the base station to switch the terminal to the selected destination 3G or 2G network cell.

Description

CSFB method for switching network, mobile management entity and base station
Technical field
The present invention relates to network communication technology field, more particularly, to a kind of CSFB method for switching network, mobile management entity And base station.
Background technology
LTE is the evolution of 3G technology, is a transitional technology between 3G to 4G technology, and LTE network is one and has height Digit rate, low time delay, support multiple access technologies, the mobile communications network based on full packetizing.And CSFB is that LTE network development is first A kind of voice solution of phase, is a kind of cambic voice solution that most operators select, that is, has LTE ability Terminal, in the lte networks cannot transmission circuit domain service signal so that terminal LTE access under can initiate speech Deng CS business, and receive the paging of the CS business such as speech, and can be to terminal ongoing PS industry in the lte networks Business is properly processed, and creates CSFB technology.
The process of general CSFB is that the terminal carrying out PS business resides in LTE network, and needs to initiate or receive CS During business, terminal needs to fall back to 3G or 2G network, and terminal carries out the search of 3G or 2G Target cell, selects to meet CS business bar The Target cell of part switches over.If the network after falling after rise disclosure satisfy that PS business demand, the companion realizing PS business is cut Change, else if there being ongoing PS business execution pending operation, until CS business has executed, terminal comes back to LTE net Network, now terminal can continue executing with PS business.
Under this switching mode, when terminal needs to initiate CS business and carries out CSFB falling, terminal needs again Measure, including search 3G or 2G Target cell, obtain target cell information, judge the steps such as Target cell load condition, Make the access time delay that CSFB falls after rise larger, affect Consumer's Experience.
Content of the invention
The present invention provides a kind of CSFB method for switching network, mobile management entity and base station, for carrying out CSFB in terminal Accelerate fall velocity during network switching and improve Consumer's Experience.
One aspect of the present invention provides a kind of CSFB method for switching network, including:
Mobile management entity MME receives the Search Results that base station sends, and described Search Results are drilled for a long time by described terminal Enter in LTE network and in the handoff procedure of execution, 3G or 2G cell are scanned for obtaining;
Described MME sends to described base station and obtains SOT state of termination request message;
Described MME receives the status information of the described terminal that described base station sends, and described status information represents described terminal Whether there is the data PS business being carrying out;
Described MME selects one or more and described terminal business according to described status information from described Search Results The 3G matching or 2G cell, and with tabular form storage;
If described terminal needs to carry out circuit domain dropping, described MME selection target 3G or 2G cell in described list, to Described base station sends CSFB and falls instruction after rise, and the information of selected target 3G or 2G cell is sent to described base station, so that Described terminal is switched to target 3G or the 2G network cell of described selection by described base station.
Another aspect of the present invention provides a kind of circuit domain dropping CSFB method for switching network, including:
The Search Results that base station receiving terminal sends, described Search Results are by described terminal in Long Term Evolution LTE network In the handoff procedure of execution, 3G or 2G cell are scanned for obtaining;
Described Search Results are sent to mobile management entity MME by described base station;
Described base station receives the acquisition SOT state of termination request message that described MME sends;
Described base station sends the status information of described terminal to described MME, and whether described status information represents described terminal There is the data PS business being carrying out;
Described base station receives selected target 3G of described MME or the information of 2G cell, selected target 3G of described MME Or 2G cell is described MME in the one or more and described terminal being selected from described Search Results according to described status information The cell that matches of business in target 3G that selects or 2G cell;
The CSFB that reception described MME in described base station sends falls instruction after rise, and is instructed described end according to described CSFB falling End switches to target 3G or the 2G network cell of described selection.
Another aspect of the invention provides a kind of mobile management entity, including:
Receiver module, for receiving the Search Results of base station transmission, described Search Results are by terminal in Long Term Evolution LTE net In the handoff procedure of execution, 3G or 2G cell are scanned for obtaining in network;
Sending module, obtains SOT state of termination request message for sending to described base station;
Described receiver module is additionally operable to receive the status information of the described terminal that described base station sends, described status information table Show whether described terminal has the data PS business being carrying out;
Selecting module, for selecting one or more and described terminal according to described status information from described Search Results The 3G that matches of business or 2G cell;
Memory module, for 3G that the one or more of described selection and described terminal business match or 2G cell With tabular form storage;
Described selecting module is additionally operable to selection target 3G or 2G cell in described list;
Described sending module is additionally operable to send CSFB falling instruction to described base station, and will be little to selected target 3G or 2G The information in area is sent to described base station, so that described terminal is switched to target 3G of described selection for described base station or 2G network is little Area.
Another aspect of the invention provides a kind of base station, including:
Receiver module, the Search Results sending for receiving terminal, described Search Results are by described terminal in Long Term Evolution In the handoff procedure of execution, 3G or 2G cell are scanned for obtaining in LTE network;
Sending module, for being sent to mobile management entity MME by described Search Results;
Described receiver module is additionally operable to receive the acquisition SOT state of termination request message that described MME sends;
Described sending module is additionally operable to send the status information of described terminal to described MME, and described status information represents institute State whether terminal has the data PS business being carrying out;
Described receiver module is further used for receiving the CSFB falling instruction that described MME sends, and receives selected by described MME Target 3G selected or the information of 2G cell, selected target 3G of described MME or 2G cell are described MME according to described state The target selecting in the cell that the one or more and described terminal business that information selects from described Search Results matches 3G or 2G cell;
Handover module, for falling, according to described CSFB, target 3G or the 2G that described terminal is switched to described selection by instruction after rise Network cell.
The present invention passes through above-mentioned CSFB method for switching network, mobile management entity and base station, and terminal is in LTE network switching 3G or 2G is scanned for and retains Search Results, carry out CSFB and return when the terminal being in LTE network needs to execute CS business When falling, select there is PS professional ability and the 3G of CS professional ability simultaneously or 2G cell switches over, accelerate CSFB and fall speed after rise Degree, thus improve Consumer's Experience.
Brief description
Fig. 1 is the schematic diagram of CSFB method for switching network one embodiment of the present invention;
Fig. 2 is the schematic diagram of another embodiment of CSFB method for switching network of the present invention;
The CSFB that Fig. 3 resides in for terminal of the present invention during LTE network falls flow chart after rise;
Fig. 4 is the structure chart of mobile management entity MME of the present invention;
Fig. 5 is the structure chart of base station eNodeB of the present invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
Fig. 1 is the schematic diagram of CSFB method for switching network one embodiment of the present invention, as shown in figure 1, the method can include:
101st, mobile management entity MME receives the Search Results that base station sends, and Search Results are by terminal in Long Term Evolution LTE In the handoff procedure of execution, 3G or 2G cell are scanned for obtaining in network;
In the lte networks, if leading to meet terminal because signal is not good or because terminal is in movement During business demand, need to carry out network switching, terminal can scan for LTE network cell.Because terminal is not carried out voice CS Business, therefore generally, terminal will not retain the Search Results of 3G or 2G cell when carrying out web search.The present invention In, terminal retains LTE network Search Results when carrying out web search, also retains the Search Results of 3G or 2G cell simultaneously, and The Search Results of 3G or 2G cell are sent to base station eNodeB, base station eNodeB sends Search Results to mobile management entity MME.
The cell information of the 3G or 2G cell searching is comprised, cell information may include in Search Results:Subdistrict frequency point is believed Breath, CS business load status information, PS professional ability information etc..
102nd, MME sends to base station and obtains SOT state of termination request message;
103rd, MME receives the status information of the terminal that base station sends, and status information represents whether terminal has and is carrying out PS business;
MME, after receiving the Search Results of terminal, can send out request message to base station, is believed with the state obtaining this terminal Breath.Now, terminal is resident in the lte networks, if terminal is not carried out data PS business, base station returns the status information of terminal For PS business Idle state to MME, if terminal is carrying out PS business, base station returns the status information of terminal for PS business even Connect state to MME.
104th, MME according to status information select from Search Results one or more 3G matching with terminal business or 2G cell, and with tabular form storage;
MME receive base station transmission terminal PS service connected state, and the PS service connected state according to terminal and 3G in Search Results or the cell information of 2G cell, select one or more works in the Search Results of aforementioned 3G or 2G cell It is the Target cell with terminal coupling, cell information includes:Subdistrict frequency point information, PS professional ability information, CS business load shape State information etc., this system of selection is specially:
If terminal is in PS business idle condition, MME can select in the Search Results to 3G or 2G cell one or Multiple that there is CS professional ability, and the relatively low cell of CS business load is little as the target mated with this terminal Area, and these Target cells are stored with tabular form.This target cell list is because of next between LTE network of terminal Re-start search during secondary switching and update.
If terminal is in PS service connected state, MME can select one or many in the Search Results of 3G or 2G cell Individual that there is CS professional ability, and the relatively low cell of CS business load, preferably there is the cell of PS professional ability, as with The Target cell that this terminal is mated, and these Target cells are stored with tabular form.If 3G or 2G in Search Results Cell can not meet the PS business demand of terminal, then MME only considers the CS business load state of 3G or 2G cell, preferentially ensures The smooth execution of CS business.Likewise, this target cell list because of terminal between LTE network upper once switch when weight Newly scan for and update.
If 105 terminals need to carry out circuit domain dropping, MME selection target 3G or 2G cell in lists, to described base station Send CSFB and fall instruction after rise, and the information of selected target 3G or 2G cell is sent to base station, so that terminal is cut by base station Shift to target 3G or the 2G network cell of selection;
When reside in LTE network terminal initiate voice caller or called when, MME to base station send CSFB fall after rise instruction, Now:
If the state of terminal is PS business Idle state, MME selects one in target cell list up-to-date up to now Individual optimal objective cell, that is, the minimum Target cell of CS business load is as the Target cell with terminal coupling, and by this target The cell information of cell sends to eNodeB, and cell information may include:Subdistrict frequency point information, CS business load status information etc. Deng so that eNodeB is after the cell information receiving above-mentioned Target cell, directly terminal being switched to this Target cell;
If the state of terminal is PS service connection state, MME selects one in target cell list up-to-date up to now Individual optimal objective cell, that is, CS business load is minimum, and have the Target cell of PS professional ability as with terminal coupling Target cell, and the cell information of this Target cell is sent to eNodeB, cell information may include:Subdistrict frequency point information, CS Business load status information, PS professional ability information etc., so that eNodeB is after the cell information receiving above-mentioned Target cell, Directly terminal can be switched to this Target cell, then the original PS business of this terminal can be in target 3G being switched to or 2G cell Proceed, realize PS business with CS business in company with switching.
The CSFB method for switching network that the present embodiment provides, when being switched between LTE network by MME receiving terminal to 3G or The result that 2G Target cell scans for, and select CS business load minimum in Search Results according to the status information of terminal 3G or 2G Target cell or select CS business load minimum and 3G or 2G Target cell that simultaneously have PS professional ability, will select Target cell information send to eNodeB so that when the terminal being in LTE network needs to carry out CSFB and falls after rise, base station can be straight Connect and terminal is switched to this 3G or 2G Target cell, re-searched for without when executing CSFB falling, accelerate back Terminal-velocity degree, and so that the PS business of terminal is not suspended, improve Consumer's Experience.
Fig. 2 is the schematic diagram of another embodiment of CSFB method for switching network of the present invention, as shown in Fig. 2 the method can be wrapped Include:
201st, the Search Results that base station receiving terminal sends, Search Results are executed in Long Term Evolution LTE network by terminal Handoff procedure in 3G or 2G cell are scanned for obtaining;
Base station eNodeB chooses the good 3G of signal quality or 2G cell as standby in the Search Results of the terminal receiving Select Target cell, and alternative target cells priority arrangement is carried out from large to small according to signal intensity, alternative target cells System of selection is specially:
Base station sets one signal threshold value, signal intensity is more than or equal to the 3G of this signal threshold value or 2G cell alternately Target cell.
202nd, Search Results are sent to mobile management entity MME by base station;
Base station, according to the priority arrangement of alternative target cells, will rank forward, i.e. relatively large multiple of signal intensity The cell information of alternative target cells sends to MME.
203rd, base station receives the acquisition SOT state of termination request message that MME sends;
204th, base station sends the status information of terminal to MME, and status information represents whether terminal has PS business;
After base station receives MME acquisition SOT state of termination request message, the PS service connected state of terminal, now terminal can be obtained Resident in the lte networks, if terminal is not carried out data PS business, base station by the status information of terminal be PS business Idle state It is back to MME;If terminal is carrying out data PS business, base station can measuring terminals PS business resource requirement, and by terminal Status information is back to MME for PS service connection state, and simultaneously return terminal PS business resource requirement to MME so that MME according to The state of terminal and PS business resource requirement, in alternative 3G or 2G Target cell, select optimum Target cell as with The Target cell that terminal traffic matches.
205th, base station receives information, selected target 3G of MME or the 2G cell of selected target 3G of MME or 2G cell Select in the cell that matches of business of the one or more and terminal being selected from Search Results according to status information for MME Target 3G or 2G cell;
Base station receives MME and selects in the cell that the one or more and terminal traffic being selected according to the SOT state of termination is mated Optimal objective cell, if wherein terminal is PS business idle condition, this Target cell is to have CS professional ability, and CS The minimum cell of business load degree;If terminal is PS service connected state, this Target cell is to have CS professional ability, CS Business load degree is minimum, and PS business disclosure satisfy that the Target cell of terminal requirements, i.e. the idle PS business of Target cell Resource is more than or equal to terminal current PS business resource requirement.
206th, base station receives the CSFB falling instruction that MME sends, and according to CSFB falling instruction, terminal is switched to selection Target 3G or 2G network cell.
The CSFB switching command that base station sends according to MME, by terminal be directly switch into MME selection 3G or 2G target little Area.After switching, terminal can start execute CS business it is possible to continue executing with original PS business, thus complete PS business with The companion switching of CS business.
The CSFB method for switching network that the present embodiment provides, is switched between LTE network by what base station receiving terminal sent When result that 3G or 2G Target cell is scanned for, and send to MME after this Search Results is arranged, and the state by terminal Information, especially terminal are that PS business resource requirement information during PS service connection state sends to MME, so that MME is according to terminal Different status informations carries out the selection of 3G or 2G Target cell, after the CSFB receiving MME falls instruction after rise, directly by terminal Switch to MME selected 3G or 2G Target cell, re-searched for without when executing CSFB falling, accelerate back Terminal-velocity degree, and so that the PS business of terminal is not suspended, improve Consumer's Experience.
The CSFB that Fig. 3 resides in for terminal of the present invention during LTE network falls flow chart after rise, as shown in figure 3, this flow process includes Interaction between terminal, base station eNodeB and mobile management entity MME.Specifically:
Terminal is in LTE network, when network condition can not meet the demand of terminal, needs to carry out network switching;
301st, base station eNodeB controls to terminal UE sending measuring;
302nd, terminal carries out LTE cell measurement, records 3G/2G cell information simultaneously;
After terminal receives the measurement control that base station issues, proceed by the measurement of LTE network cell, retain to 3G or 2G The measurement result of cell, and record the cell information of 3G or 2G cell;
303rd, terminal to report measurement report is to base station;
The cell information of the 3G recording or 2G cell is sent to base station in the form of measurement report by terminal;
304th, base station sends the 3G/2G cell information of terminal to report to mobile management entity MME
After base station receives 3G or the 2G cell information of terminal transmission, this 3G or 2G cell information are arranged and will be whole Reason result sends to MME;Specifically:
Signal intensity is more than 3G or the 2G cell alternately Target cell of a predetermined threshold value by base station, and strong according to signal Degree carries out priority arrangement from large to small, will be positioned at prostatitis, and that is, the relatively large one or more alternative target of signal intensity are little Area and cell information send to MME.
305th, MME sends to base station and obtains the instruction of terminal current traffic state;
After MME receives alternative target cells and the cell information of base station transmission, send to base station and obtain the current industry of terminal Business status information instruction;306th, base station sends the response of terminal current state to MME;
Terminal, after receiving the instruction of acquisition terminal traffic status information of MME transmission, obtains terminal current data PS The connection status of business is PS business Idle state or PS service connection state, and this connection status is back to MME;Specifically:
If terminal is PS business Idle state, the SOT state of termination is back to MME by base station;
If terminal is PS service connection state, base station obtains the downstream rate value of terminal PS business, and by this downstream rate Value sends to MME together with terminal's status information as terminal PS business resource requirement.
307th, MME issues acquisition 3G/2G Zone capability instruction to base station;
308th, base station landwards wireless access network(UMTS Terrestrial Radio Access Network, UTRAN) Send and obtain target 3G/2G cell related service capability information request;
309th, UTRAN returns target 3G/2G cell related service capabilities response to base station;
310th, base station sends target 3G/2G Zone ability information to MME;
Base station sends the professional ability information of the alternative 3G getting or 2G cell to MME, the industry of this 3G or 2G cell Business ability information may include the subdistrict frequency point information of alternative cell, CS business load status information, PS professional ability information etc..
311st, target 3G/2G cell information is stored and forms list by MME, and real-time update;
After MME receives the alternative 3G of base station transmission or the professional ability information of 2G cell, according to the service condition of terminal The cell information selection target cell of information and this alternative 3G or 2G Target cell;Specifically:
According to terminal PS business state information, in alternative 3G or 2G cell, selection and terminal traffic match MME One or more Target cells simultaneously store into tabular form, and search for real-time update, the wherein selection of MME according to terminal next time Method such as embodiment before, here is omitted.
312nd, when MME receives the audio call CS business of this terminal, choose optimal objective cell;
When terminal have CS caller or called when, MME chooses the optimum matching with terminal traffic in target cell list Target cell;
313rd, MME sends CSFB falling instruction to base station, and the cell information of optimal objective 3G/2G cell is sent to base Stand.
314th, base station falls terminal to this Target cell after rise;
Terminal is directly switch into by base station according to the configured information of MME and the cell information of the optimal objective cell receiving This optimal objective cell.
This example illustrates the friendship between terminal, mobile management entity MME and base station eNodeB during CSFB network switching Mutually process, the specific implementation of wherein each step, refer to the description of method shown in corresponding Fig. 1 and Fig. 2 embodiment, here Repeat no more.
Fig. 4 is the structure chart of mobile management entity MME of the present invention, as shown in figure 4, this MME can include:
Receiver module 41, for receiving the Search Results of base station transmission, Search Results are by terminal in Long Term Evolution LTE network In the handoff procedure of middle execution, 3G or 2G cell are scanned for obtaining;
Sending module 42, obtains SOT state of termination request message for sending to base station;
Receiver module 41 is additionally operable to receive the status information of the terminal that base station sends, and status information represents whether terminal has The PS business being carrying out;
Selecting module 43, for selecting one or more business phases with terminal according to status information from Search Results The 3G joining or 2G cell;
Memory module 44, for by the one or more 3G matching with terminal business selecting or 2G cell with list Form stores;
Selecting module 43 is additionally operable to selection target 3G or 2G cell in lists;
Sending module 42 is additionally operable to send CSFB falling instruction to base station, and the letter by selected target 3G or 2G cell Breath is sent to base station, so that terminal is switched to 3G the or 2G network cell of selection by base station
Mobile management entity MME in the present embodiment is the execution equipment of CSFB method for switching network, and it executes CSFB net The detailed process of network changing method can be found in Fig. 1 of the present invention, the associated description in embodiment of the method shown in 3, will not be described here.
The mobile management entity MME that the present embodiment provides, to 3G or 2G mesh when being switched between LTE network by receiving terminal The mark result that scans for of cell, and according to the status information of terminal select in Search Results the minimum 3G of CS business load or 2G Target cell or select CS business load minimum and 3G or 2G Target cell that simultaneously have PS professional ability, the mesh that will select Mark cell information sends to base station eNodeB so that when the terminal being in LTE network needs to carry out CSFB falling, base station can be straight Connect and terminal is switched to this 3G or 2G Target cell, re-searched for without when executing CSFB falling, accelerate back Terminal-velocity degree, and so that the PS business of terminal is not suspended, improve Consumer's Experience.
Fig. 5 is the structure chart of invention base station eNodeB, as shown in figure 5, this base station can include:
Receiver module 51, the Search Results sending for receiving terminal, Search Results are by terminal in Long Term Evolution LTE network In the handoff procedure of middle execution, 3G or 2G cell are scanned for obtaining;
Sending module 52, for being sent to mobile management entity MME by Search Results;
Receiver module 51 is additionally operable to receive the acquisition SOT state of termination request message that MME sends;
Sending module 52 is additionally operable to send the status information of terminal to MME, and status information represents whether terminal has PS industry Business;
Receiver module 51 is further used for receiving the CSFB falling instruction that MME sends, and receives selected target 3G of MME Or the information of 2G cell, selected target 3G of MME or 2G cell are that MME is selecting from Search Results according to status information Target 3G selecting in one or more cells matching with terminal business or 2G cell;
Handover module 53, for falling, according to CSFB, target 3G or the 2G network cell that terminal is switched to selection by instruction after rise.
Base station eNodeB in the present embodiment is the execution equipment of CSFB method for switching network, and it executes CSFB network switching The detailed process of method can be found in Fig. 2 of the present invention, the associated description in embodiment of the method shown in 3, will not be described here.
The present embodiment provide base station eNodeB, by receiving terminal send between LTE network switch when to 3G or 2G The result that Target cell scans for, and send after the arrangement of this Search Results to MME, and the status information by terminal, especially Be terminal be that PS business resource requirement information during PS service connection state sends to MME, so that MME is according to the different state of terminal Information carries out the selection of 3G or 2G Target cell, after the CSFB receiving MME falls instruction after rise, directly terminal is switched to MME Selected 3G or 2G Target cell, is re-searched for without when executing CSFB falling, is accelerated fall velocity, and And so that the PS business of terminal is not suspended, improve Consumer's Experience.
One of ordinary skill in the art will appreciate that:The all or part of step realizing above-mentioned each method embodiment can be led to Cross the related hardware of programmed instruction to complete.Aforesaid program can be stored in a computer read/write memory medium.This journey Sequence upon execution, executes the step including above-mentioned each method embodiment;And aforesaid storage medium includes:ROM, RAM, magnetic disc or Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that:Various embodiments above only in order to technical scheme to be described, is not intended to limit;To the greatest extent Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that:Its according to So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered Row equivalent;And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology The scope of scheme.

Claims (4)

1. a kind of circuit domain dropping CSFB method for switching network is it is characterised in that include:
Mobile management entity MME receives the Search Results that base station sends, and described Search Results are by described terminal in Long Term Evolution LTE In the handoff procedure of execution, 3G or 2G cell are scanned for obtaining in network;
Described MME sends to described base station and obtains SOT state of termination request message;
Described MME receives the status information of the described terminal that described base station sends, and whether described status information represents described terminal There is the data PS business being carrying out;
Described MME selects the business phase of one or more and described terminal according to described status information from described Search Results The 3G joining or 2G cell, and with tabular form storage;
If described terminal needs to carry out the falling of circuit domain CSFB, described MME selection target 3G or 2G cell in described list, to Described base station sends CSFB and falls instruction after rise, and the information of selected target 3G or 2G cell is sent to described base station, so that Described terminal is switched to target 3G or the 2G network cell of described selection by described base station;
If described status information represents described terminal and has a PS business being carrying out, selected 3G or 2G of described MME is little Area is the cell with PS professional ability;
Described MME selects the business phase of one or more and described terminal according to described status information from described Search Results The 3G joining or 2G cell, specially:
If described status information represents that described terminal has the PS business being carrying out, described MME is in described Search Results Select one or more there is PS professional ability and the low cell of CS business load matches as the business with described terminal Cell;
If described status information represents the PS business that described terminal is not carrying out, described MME is in described Search Results The cell that the cell selecting one or more CS business loads low matches as the business with described terminal.
2. a kind of circuit domain dropping CSFB method for switching network is it is characterised in that include:
The Search Results that base station receiving terminal sends, described Search Results are executed in Long Term Evolution LTE network by described terminal Handoff procedure in 3G or 2G cell are scanned for obtaining;
Described Search Results are sent to mobile management entity MME by described base station;
Described base station receives the acquisition SOT state of termination request message that described MME sends;
Described base station sends the status information of described terminal to described MME, and described status information represents whether described terminal has The data PS business being carrying out;
Described base station receives selected target 3G of described MME or the information of 2G cell, selected target 3G of described MME or 2G Cell is the industry in the one or more and described terminal being selected from described Search Results according to described status information for the described MME Target 3G selecting in the cell that business matches or 2G cell;Wherein, if described status information represents that described terminal has The PS business of execution, then selected target 3G of described MME or 2G cell are or many selecting from described Search Results Individual have PS professional ability and the low cell of CS business load;If described status information represents what described terminal was not carrying out PS business, then selected target 3G of described MME or 2G cell are thus one or more CS industry of selecting in described Search Results The low cell of business load;
Described base station receives the CSFB falling instruction that described MME sends, and is cut described terminal according to described CSFB falling instruction Shift to target 3G or the 2G network cell of described selection;
If described status information represents that if described terminal has the PS business being carrying out, it is described that described base station receives Selected target 3G of MME or 2G cell are the cell with PS professional ability.
3. a kind of mobile management entity is it is characterised in that include:
Receiver module, for receiving the Search Results of base station transmission, described Search Results are by terminal in Long Term Evolution LTE network In the handoff procedure of execution, 3G or 2G cell are scanned for obtaining;
Sending module, obtains SOT state of termination request message for sending to described base station;
Described receiver module is additionally operable to receive the status information of the described terminal that described base station sends, and described status information represents institute State whether terminal has the data PS business being carrying out;
Selecting module, for selecting one or more and described terminal industry according to described status information from described Search Results 3G or 2G cell that business matches;
Memory module, for 3G or 2G cell that the business of one or more and described terminals of described selection matches to arrange Sheet form stores;
Described selecting module is additionally operable to selection target 3G or 2G cell in described list;
Described sending module is additionally operable to send CSFB to described base station and falls instruction after rise, and by selected target 3G or 2G cell Information is sent to described base station, so that described terminal is switched to target 3G or the 2G network cell of described selection by described base station;
If the status information of the described terminal that the described base station that described receiver module receives sends represents that described terminal has The PS business of execution, then the 3G that described selecting module selects or 2G cell are the cell with PS professional ability;
Described selecting module selects one or more and described terminal industry according to described status information from described Search Results The 3G that business matches or 2G cell are specially:
If the status information of the described terminal that the described base station that described receiver module receives sends represents that described terminal has The PS business of execution, then described selecting module select one or more there is PS professional ability and CS industry in described Search Results The cell that the low cell of business load matches as the business with described terminal;
If the status information of the described terminal that the described base station that described receiver module receives sends represents described terminal not The PS business of execution, then described selecting module select the low cell of one or more CS business loads to make in described Search Results It is the cell matching with the business of described terminal.
4. a kind of base station is it is characterised in that include:
Receiver module, the Search Results sending for receiving terminal, described Search Results are by described terminal in Long Term Evolution LTE net In the handoff procedure of execution, 3G or 2G cell are scanned for obtaining in network;
Sending module, for being sent to mobile management entity MME by described Search Results;
Described receiver module is additionally operable to receive the acquisition SOT state of termination request message that described MME sends;
Described sending module is additionally operable to send the status information of described terminal to described MME, and described status information represents described end Whether end has the data PS business being carrying out;
Described receiver module is further used for receiving the CSFB falling instruction that described MME sends, and it is selected to receive described MME Target 3G or the information of 2G cell, selected target 3G of described MME or 2G cell are described MME according to described status information Target 3G that selects in the one or more cells matching with described terminal business selecting from described Search Results or 2G cell;Wherein, if described status information represents that described terminal has the PS business being carrying out, described MME is selected Target 3G or 2G cell are that select from described Search Results one or more have PS professional ability and CS business load is low Cell;If described status information represents the PS business that described terminal is not carrying out, selected target 3G of described MME Or 2G cell is thus the low cell of one or more CS business loads that selects in described Search Results;
Handover module, for falling, according to described CSFB, target 3G or the 2G network that described terminal is switched to described selection by instruction after rise Cell;
If the described status information that described sending module sends represents that described terminal has the PS business being carrying out, described Selected target 3G of MME or 2G cell are the cell with PS professional ability.
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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015154218A1 (en) * 2014-04-08 2015-10-15 华为技术有限公司 Call hold method and user equipment
CN105530674A (en) * 2014-10-23 2016-04-27 中兴通讯股份有限公司 Circuit domain fallback method and communication node and system
CN105636167A (en) * 2014-11-05 2016-06-01 深圳富泰宏精密工业有限公司 Network frequency point search method and system
CN107211329B (en) * 2015-05-05 2020-07-10 诸暨易和项目投资有限公司 Circuit domain fallback method, network equipment and system
CN108476449B (en) * 2016-03-30 2020-10-27 华为技术有限公司 Method and terminal device for processing voice service
CN109479225B (en) * 2016-07-29 2020-11-17 华为技术有限公司 Method for accessing different-system cell and related equipment
CN107734570B (en) * 2016-08-12 2020-02-14 华为技术有限公司 Switching method, network equipment and system
CN109845330A (en) * 2016-11-04 2019-06-04 华为技术有限公司 A kind of method, apparatus and system of signalling
CN109391596A (en) * 2017-08-09 2019-02-26 中国移动通信有限公司研究院 A kind of falseness caller identification method, apparatus, electronic equipment and storage medium
CN107708138B (en) * 2017-11-06 2020-09-22 Oppo广东移动通信有限公司 Network access method, terminal and storage medium
WO2019091077A1 (en) * 2017-11-13 2019-05-16 Oppo广东移动通信有限公司 Method and device for triggering network switching, and computer storage medium
CN110351803A (en) * 2018-04-08 2019-10-18 维沃移动通信有限公司 A kind of method of inter-network operations, first network, third network and terminal
WO2019196799A1 (en) * 2018-04-08 2019-10-17 维沃移动通信有限公司 Method for carrying out inter-network operation, first network, third network, and terminal
CN110300437B (en) * 2019-07-25 2021-06-22 中国联合网络通信集团有限公司 Method, terminal and system for shortening CSFB (Circuit switched fallback) cell fall-back time

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101631352A (en) * 2008-07-15 2010-01-20 华为技术有限公司 Rollback method, rollback system, access network equipment and core network equipment based on circuit switching
CN102238674A (en) * 2010-04-30 2011-11-09 电信科学技术研究院 Service switching method and equipment from PS (Packet Switched) domain to 2G/3G network

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9374739B2 (en) * 2010-05-18 2016-06-21 Qualcomm Incorporated Methods and apparatus for calling party number display solutions for 1xCSFB

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101631352A (en) * 2008-07-15 2010-01-20 华为技术有限公司 Rollback method, rollback system, access network equipment and core network equipment based on circuit switching
CN102238674A (en) * 2010-04-30 2011-11-09 电信科学技术研究院 Service switching method and equipment from PS (Packet Switched) domain to 2G/3G network

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