CN105338583A - Network switching method based on circuit switched domain fall back CSFB - Google Patents
Network switching method based on circuit switched domain fall back CSFB Download PDFInfo
- Publication number
- CN105338583A CN105338583A CN201410367537.1A CN201410367537A CN105338583A CN 105338583 A CN105338583 A CN 105338583A CN 201410367537 A CN201410367537 A CN 201410367537A CN 105338583 A CN105338583 A CN 105338583A
- Authority
- CN
- China
- Prior art keywords
- terminal
- network
- cell
- community
- circuit domain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The present invention relates to a network switching method based on circuit switched domain fall back CSFB, comprising: performing a packet switched domain service in a current service cell that does not support a circuit switched domain service; switching a terminal to a first target cell for network decision, the network type of the first target cell matches the circuit switched domain service; if the switching is failed, continuing retaining in the circuit switched domain; performing cell selection by the terminal; and connecting to a second target cell that can perform the circuit switched domain service. The network switching method of the present invention can improve the success rate for establishing a call when the network switching based on a CSFB process is failed, thereby improving communication quality.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method for switching network based on circuit domain dropping CSFB.
Background technology
Circuit domain dropping (CircuitSwitchedDomainFallBack, be called for short CSFB) subscriber equipment (UserEquipment can be realized, be called for short UE) under LTE access, initiate the circuit switching (CircuitSwitched such as voice, be called for short CS) business, receive the paging of the CS business such as voice, and can to terminal at Long Term Evolution (LongTermEvolution, being called for short LTE) ongoing packet switching under system access (PacketSwitch is called for short PS) business correctly processes.In CSFB technology, in two overlay areas of LTE and 2G/3G, to voice, location service (LocationServices, be called for short LCS) and supplementary service, subscriber equipment can trigger and return back to Generation Mobile Telecommunication System technology (2rd-generation from LTE access, be called for short 2G)/G mobile communication (3rd-generation, be called for short 3G) network insertion carry out CS business.
Current CSFB has become operator the disposes initial stage voice solution choice of technology at LTE.Adopting CSFB to fall after rise to 2G/3G provides the scheme of speech business to make full use of conventional network resources, for user provide reliably, high-quality speech service.
In the prior art, when subscriber equipment is positioned at 2G, the networks such as 3G and LTE overlapping covered in, terminal under LTE network to mobile management entity (MobilityManagementEntity, be called for short LTE network) when initiating voice caller or voice paging, expansion service request (ExtendedServiceRequest) is sent to LTE network by being LTE base station, LTE network is known, and terminal will carry out circuit domain business, LTE network and then indicating terminal fall back to 2G network or 3G network, after terminal falls back to 2G network or 3G network, to mobile interaction center (MobilSwitchCentre, be called for short MSC) initiate access request, terminal whether is allowed to initiate circuit domain business by MSC according to the priority of terminal use and the system loading Determines of self, when terminal is allowed to access, terminal carries out network switching.
But, prior art is in above-mentioned network switching process, if network handoff failure, then can return to LTE network, first set up RRC (RadioResourceControl) link, under active call or paging, user/application layer can initiate audio call again, re-starts CSFB process and the switching of above-mentioned network, cause linking expense, calling time delay, system response time is slack-off, affects communication quality and Consumer's Experience
Summary of the invention
The technical problem that technical solution of the present invention solves is, how when the network handoff failure based on CSFB process, avoids again calling out, to improve communication quality.
In order to solve the problems of the technologies described above, technical solution of the present invention provides a kind of method for switching network based on circuit domain dropping CSFB, comprising:
Carry out packet switch domain service in current service cell, circuit domain business is not supported in described current service cell;
Make terminal switch to the first object community of network decision, the network type of described first object community mates with described circuit domain business;
If described handoff failure, then continue to reside in circuit domain, described terminal performs community and selects, and is connected to second Target cell that can perform described circuit domain business.
Optionally, terminal switch is made to comprise to the first object community of network decision described in:
The Search Results that network reception terminal sends, described Search Results obtains based on to the search of the adjacent cell that can perform described circuit domain business;
The SOT state of termination that network sends based on base station, from Search Results, select an adjacent cell that can perform described circuit domain business as first object community, described SOT state of termination is suitable for representing whether described terminal has the described circuit domain business performed;
The information of described first object community is sent to described base station, to make described terminal switch to described first object community.
Optionally, terminal switch is made to comprise to the first object community of network decision described in:
Network selects an adjacent cell as first object community from performing the adjacent cell of described circuit domain business of obtaining;
The information of described first object community is sent to described base station, to make described terminal switch to described first object community.
Optionally, the network type of described current service cell is LTE network, and the network type of described first object community and the second Target cell is 2G network or 3G network.
Optionally, described packet switch domain service is data service, and described circuit domain business is speech business.
Optionally, if described handoff failure, describedly continue to reside in circuit domain and comprise: described terminal continues to reside at described first object community.
Optionally, described terminal execution community is selected to comprise:
Based on the adjacent cell list that terminal stores when previous search adjacent cell, select described second target adjacent area.
Optionally, described terminal execution community is selected also to comprise:
If be connected to based on the second target adjacent area failure selected by the adjacent cell list stored according to described Search Results, then the Neighboring Cell List based on terminal Historic preservation selects described second target adjacent area.
Optionally, described terminal execution community is selected also to comprise:
If the second target adjacent area failure that the Neighboring Cell List be connected to based on described terminal Historic preservation is selected, then terminal carries out frequency sweep to obtain initial cell list;
Described second target adjacent area is selected based on the list of described initial cell.
Optionally, described terminal execution community is selected also to comprise: if described connection failure, described terminal continues to reside at described second Target cell.
Optionally, described method also comprises:
The cell identity information performing described circuit domain business of occuring simultaneously will be there is and system information is configured in described base station in advance with described current service cell coverage.
Optionally, the cell identity information covering the carried out circuit domain business of terminal current location is all cell identity information of carrying out circuit domain business be configured in described base station; Described system information is that described base station obtains.
The beneficial effect of technical solution of the present invention at least comprises:
Technical solution of the present invention is when CSFB process network handoff failure, not return to LTE network and re-establish RRC link, but continue to reside in the first object adjacent area (also namely continuing to reside in circuit domain) that network provides, directly attempting finding suitable community in network by terminal (subscriber equipment) carries out resident, and prepare under residing mode, to initiate access, to carry out circuit domain business (can be speech business).
Technical solution of the present invention can reduce again return to LTE network and set up RRC link resource overhead, can switch and resident period of network (community) handoff failure at network (community), directly continue to select network (community) resident based on the initial call of circuit domain business or initial Page, suitable community can be searched out during the initial call of circuit domain business or initial Page, greatly shorten the time delay again initiated required for circuit domain business, improve system response time, call can also be improved and be created as power, also can shorten and again set up call required time, thus improve communication quality and Consumer's Experience.
In the possibility of technical solution of the present invention, when cell merge failure and terminal select community failure based on the Neighboring Cell List of current service cell, terminal can be expanded and select the scope of community: the community resided in the Neighboring Cell List of terminal history maintenance can be selected, or attempt residing at the community that terminal searches net gained comprehensively, to improve reliability and the success rate that terminal selects community.
Accompanying drawing explanation
Fig. 1 is the distribution schematic diagram of LTE network in technical solution of the present invention, 3G network and 2G network coverage;
The schematic flow sheet of a kind of method for switching network based on circuit domain dropping CSFB that Fig. 2 provides for technical solution of the present invention;
The method flow schematic diagram that a kind of community is selected after network handoff failure that Fig. 3 provides for technical solution of the present invention.
Embodiment
In order to enable object of the present invention, characteristic sum effect becomes apparent more, elaborates to the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from mode described here to implement, therefore the present invention is not by the restriction of following public specific embodiment.
As shown in Figure 1, when deployment of LTE network, the coverage of 2G network can think all standing of gamut 10 to 12, and 3G network may be the continuous covering to scope 11 and scope 12, and LTE network then may realize the covering of scope 12 high speed data service.
For ensureing the continuity of customer service, in conjunction with the progress of LTE, need the interoperability principle that LTE and 3G/2G network is rationally set.Further, the impact also needing the introducing considering to reduce LTE system how to greatest extent to bring to original 3G/2G network.
Continue with reference to figure 1, scope 12 is in current service cell, packet switch domain service (PS business) can be carried out based on LTE network, if and user initiatively initiates audio call or terminal (UE) is called and be subject to paging, then terminal receives circuit domain business notice, circuit domain business can be initiated, now carry out CSFB process, namely network falls back to circuit domain by packet domain, network can be switched to 2G network in scope 12 or 3G network, and the resident 2G cell of terminal or 3G community also initiate to connect.
The process of general CSFB is that the terminal of carrying out packet domain (PS) business resides in LTE network, and when needs initiation or receiving circuit territory (CS) business, terminal needs to fall back to 2G network or 3G network.
Terminal selects the Target cell meeting circuit domain business to switch, if the network after falling after rise can meet the needs of packet switch domain service, the companion that also can realize packet switch domain service switches, otherwise, if there is ongoing packet switch domain service to perform pending operation, terminal after circuit domain business is finished, can come back to LTE network, to continue to perform packet switch domain service.
Terminal switches to the process of 2G or 3G network based on CSFB from LTE network can with reference to such as under type:
First, the Search Results of LTE network receiving terminal, described Search Results is that terminal is searched for community 2G or 3G around LTE base station and obtained.
In LTE network, when the business that terminal equipment or network do not support present terminal needs to initiate, need to carry out network switching.
Terminal, when carrying out web search, may retain 2G or the 3G cell search results of feedback, also may can not retain.
Search Results also may comprise the cell information of 2G or the 3G community searched, and cell information can comprise: subdistrict frequency point information, circuit domain business loading condition information and packet switch domain service ability information etc.
Secondly, LTE network can send the message obtaining SOT state of termination request to base station, and based on the state information of the terminal that base station sends, LTE network can know whether terminal has the packet switch domain service performed.
In the above-mentioned stage, terminal be all resident in the lte networks, base station can to obtain the state that terminal performs business:
If terminal does not perform packet switch domain service, then the terminal's status information that base station returns is that packet switch domain service is idle;
If terminal performs packet switch domain service, then the terminal's status information that base station returns is packet switch domain service connected state.
Then, LTE network, according to the state information of described terminal, can be selected one or more 2G or 3G community adaptive with terminal traffic, store with tabular form from the Search Results of terminal.
Based on the cell information of 2G or the 3G community in Search Results, one or more Target cell as mating with terminal in Search Results can be selected.Cell information comprises:
Subdistrict frequency point information;
Packet switch domain service ability information;
Circuit domain business load state information etc.
In the process that above-mentioned network switches, the Target cell that can also switch with reference to following method choice network:
If terminal is in PS business idle condition, LTE network to select one or more circuit domain business ability that has in the Search Results to 2G or 3G community, and the relatively low community of circuit domain business load is as the Target cell of mating with this terminal, and these Target cells are stored with tabular form.This target cell list may upgrade owing to re-starting search during switching next time between terminal and LTE network.
If terminal is in packet switch domain service connection status, LTE network to select one or more circuit domain business ability that has in the Search Results of 2G or 3G community, and the community that circuit domain business load is relatively low, the Target cell of mating is carried out as with this terminal in the community preferably with PS professional ability, and is stored with tabular form these Target cells.If 2G or the 3G community in Search Results all can not meet the packet switch domain service demand of terminal, then LTE network only considers the circuit domain business load condition of 2G or 3G community, namely preferentially ensures carrying out smoothly of circuit domain business.Equally, target cell list may upgrade owing to re-starting search during the upper once switching of terminal between LTE network.
Finally, when terminal needs to carry out circuit domain dropping CSFB, LTE network is select target 2G or 3G community in lists, and sends CSFB falling instruction to described base station, and the information of selected 2G or 3G is sent to base station, to make base station by terminal switch to the Target cell selected.
Reside in LTE network community with terminal, and terminal initiates voice caller or called situation is example, now described circuit domain business is speech business, and LTE network sends CSFB and falls instruction after rise to base station:
If now the state of terminal is packet switch domain service Idle state, optimum Target cell is selected in the cell list of 2G or 3G that then LTE network provides in terminal, also the Target cell that namely circuit domain business load is minimum is as the Target cell of mating with terminal, and the cell information of this Target cell is sent to LTE base station, cell information comprises: subdistrict frequency point information, circuit domain business load state information etc., LTE base station after the cell information receiving above-mentioned Target cell, can directly by terminal switch to this Target cell.
If now the state of terminal is packet switch domain service connected state, optimum Target cell is selected in the cell list of 2G or 3G that then LTE network provides in terminal, also the Target cell that namely circuit domain business load is minimum and the Target cell with packet switch domain service ability are as the Target cell of mating with terminal, and the cell information of this Target cell is sent to LTE base station, cell information comprises: subdistrict frequency point information, circuit domain business load state information and packet switch domain service ability etc., LTE base station is after the cell information receiving above-mentioned Target cell, can directly by terminal switch to this Target cell, and the packet switch domain service that this terminal is original (data service) also can proceed at the target 2G be switched to or 3G community, the companion realizing packet switch domain service and circuit domain business switches.
Above-mentioned is only provide a kind of embodiment realizing the mode switching to 2G or 3G network from LTE network, in another embodiment, LTE network is only the web search results that reference terminal provides, it obtains switchable cell manner has multiple, such as searching net based on above-mentioned terminal, can also be according to base station search, also can be the record in network, select a community as described Target cell arbitrarily, to switch the community that network can obtain from it.
Based on the content that above-mentioned network switches, this application provides a kind of method for switching network based on circuit domain dropping CSFB, with reference to figure 2, comprise the steps:
Step S100, carries out packet switch domain service in current service cell.
When being in current service cell, terminal can receive the system information of current service cell broadcast, and in the application, the network type of current service cell specially refers to LTE network, and LTE network is supported data business only, is also described packet switch domain service.
The system information of the adjacent cell of occuring simultaneously is there is and cell identity information can be pre-configured in described base station with described current service cell coverage.
The cell identity information covering the carried out circuit domain business of terminal current location is all cell identity information of carrying out circuit domain business be configured in described base station; To be described base station switch NACC flow process can the cell base station of executive circuit territory business obtain from described covering terminal current location by network assistance honeycomb to described system information
The adjacent area network type information of current service cell can be specifically:
GSM；
CDMA；
CDMA2000；
WCDMA；
TD-SCDMA; And,
LTE。
Wherein, GSM and CDMA belongs to 2G network, and CDMA2000, WCDMA and TD-SCDMA belong to 3G network.2G network and 3G network can support voice business and data services, but data transmission bauds is lower.
Described terminal is specifically as follows support multimode terminal, is specially mobile phone, notebook computer, palmtop PC, car-mounted terminal or other-end.Described support multimode terminal refer to can support simultaneously LTE and above-mentioned mention other any one or more than one the terminal of network type.
In this step, the network type of current service cell is LTE network, and terminal carries out packet switch domain service based on LTE network, also i.e. data service.
Continue with reference to figure 2, the described method for switching network based on circuit domain dropping CSFB also comprises:
Step S101, make terminal switch to the first object community of network decision, the network type of described first object community mates with described circuit domain business.
The content that the content of step S101 can switch with reference to above-mentioned network.The optimal objective community selected by cell list of 2G or 3G that described first object community provides based on terminal for LTE network also can be that LTE network is according to the community of its switchable community got according to any one rules selection.
Continue with reference to figure 2, the described method for switching network based on circuit domain dropping CSFB also comprises:
Step S102, if described handoff failure, then continues to reside in circuit domain, and described terminal performs community and selects, and is connected to second Target cell that can perform described circuit domain business.
When carrying out network switching according to step S101, and terminal is when residing at first object community, terminal attempts connecting, but, described first object adjacent area may not exist, also may there is the adjacent cell with its co-channel interference in described first object adjacent area, in this case, above-mentioned network switching process may failure.
When described network handoff failure, be different from prior art, the terminal network of the application does not return the LTE network of packet domain, but continues to reside in circuit-domain network (can be continue to reside at first object community).
When terminal resides at circuit-domain network community, terminal is selected suitable 2G or 3G community resident voluntarily and is attempted connecting.
Fig. 3 illustrates when step S101 performs network handoff failure, and terminal will perform the process of community selection:
Step S200, the Neighboring Cell List based on described current service cell selects described second target adjacent area.
In this step, due to step S100 perform time, terminal is based on the result of terminal searching community, 2G or the 3G Neighboring Cell List of current service cell can be got, when first object adjacent area handoff failure, again based on above-mentioned Neighboring Cell List, again by terminal can be carried out resident and connect in row selection community.
Certainly its selection mode can according to terminal profile, prioritizing selection is carried out: such as according to certain criterion, can by the detection of terminal initiation to signal level or signal quality on the subdistrict frequency point in the cell list of historical storage, selection meets network standard, and (WCDMA network standard is based on RSCP or Ec/N0 index, TD-SCDMA network standard is based on RSCP index, and GSM, GPRS and EDGE network standard are based on RSSI index) historical cell connect; Also can connect based on cell load.
Certainly, if in step s 200, community selected in the Neighboring Cell List that terminal provides for current service cell network still cannot (community select failed reason can the reason of grid of reference switching small area handoff failure) chosen successfully, then continue with reference to figure 3, terminal performs the process selected community and also comprises:
Step S201, the Neighboring Cell List based on terminal Historic preservation selects described second target adjacent area.
From prior art, terminal may store the system broadcasts of received history Serving cell, wherein, stores the Neighboring Cell List of history Serving cell entrained in legacy system broadcast.
Terminal based on current service cell Neighboring Cell List select can executive circuit territory business community failure time, the scope of selected community can be expanded, extend to the Neighboring Cell List of the history Serving cell of terminal storage.Its selection mode can be similar with the selection mode of the Neighboring Cell List based on current service cell: the detection can initiating signal level or signal quality on the subdistrict frequency point in the cell list of historical storage by terminal, selects the historical cell meeting network standard to connect; Also can connect based on cell load.
But step S201 carries out selecting and connecting based on the community in terminal history Neighboring Cell List, also may occur to select unsuccessfully, continue with reference to figure 3, terminal performs the process selected community and also comprises:
Step S202, terminal carries out frequency sweep to obtain initial cell list, selects described second target adjacent area based on the list of described initial cell.
In step S202, spontaneous having carried out of terminal searches network process, the effective frequency in its searching neighboring area, and attempts resident and connect, and can guarantee the success that the second Target cell is selected and connected.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solution of the present invention; therefore; every content not departing from technical solution of the present invention; the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the protection range of technical solution of the present invention.
Claims (12)
1. based on a method for switching network of circuit domain dropping CSFB, it is characterized in that, comprising:
Carry out packet switch domain service in current service cell, circuit domain business is not supported in described current service cell;
Make terminal switch to the first object community of network decision, the network type of described first object community mates with described circuit domain business;
If described handoff failure, then continue to reside in circuit domain, described terminal performs community and selects, and is connected to second Target cell that can perform described circuit domain business.
2. the method for claim 1, is characterized in that, described in terminal switch is comprised to the first object community of network decision:
The Search Results that network reception terminal sends, described Search Results obtains based on to the search of the adjacent cell that can perform described circuit domain business;
The SOT state of termination that network sends based on base station, from Search Results, select an adjacent cell that can perform described circuit domain business as first object community, described SOT state of termination is suitable for representing whether described terminal has the described circuit domain business performed;
The information of described first object community is sent to described base station, to make described terminal switch to described first object community.
3. the method for claim 1, is characterized in that, described in terminal switch is comprised to the first object community of network decision:
Network selects an adjacent cell as first object community from performing the adjacent cell of described circuit domain business of obtaining;
The information of described first object community is sent to described base station, to make described terminal switch to described first object community.
4. the method as described in any one of claims 1 to 3, is characterized in that, the network type of described current service cell is LTE network, and the network type of described first object community and the second Target cell is 2G network or 3G network.
5. the method for claim 1, is characterized in that, described packet switch domain service is data service, and described circuit domain business is speech business.
6. the method for claim 1, is characterized in that, if described handoff failure, describedly continues to reside in circuit domain and comprises: described terminal continues to reside at described first object community.
7. the method for claim 1, is characterized in that, described terminal performs community and selects to comprise:
Based on the adjacent cell list that terminal stores when previous search adjacent cell, select described second target adjacent area.
8. method as claimed in claim 7, is characterized in that, described terminal performs community and selects also to comprise:
If be connected to based on the second target adjacent area failure selected by the adjacent cell list stored according to described Search Results, then the Neighboring Cell List based on terminal Historic preservation selects described second target adjacent area.
9. method as claimed in claim 8, is characterized in that, described terminal performs community and selects also to comprise:
If the second target adjacent area failure that the Neighboring Cell List be connected to based on described terminal Historic preservation is selected, then terminal carries out frequency sweep to obtain initial cell list;
Described second target adjacent area is selected based on the list of described initial cell.
10. method as claimed in claim 8 or 9, is characterized in that, described terminal performs community and selects also to comprise: if described connection failure, described terminal continues to reside at described second Target cell.
11. the method for claim 1, is characterized in that, also comprise:
The cell identity information performing described circuit domain business of occuring simultaneously will be there is and system information is configured in described base station in advance with described current service cell coverage.
12. methods as claimed in claim 11, is characterized in that, the cell identity information covering the carried out circuit domain business of terminal current location is all cell identity information of carrying out circuit domain business be configured in described base station; Described system information is that described base station obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367537.1A CN105338583B (en) | 2014-07-29 | 2014-07-29 | Method for switching network based on circuit domain dropping CSFB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367537.1A CN105338583B (en) | 2014-07-29 | 2014-07-29 | Method for switching network based on circuit domain dropping CSFB |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105338583A true CN105338583A (en) | 2016-02-17 |
| CN105338583B CN105338583B (en) | 2019-03-29 |
Family
ID=55288772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410367537.1A Active CN105338583B (en) | 2014-07-29 | 2014-07-29 | Method for switching network based on circuit domain dropping CSFB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105338583B (en) |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106131903A (en) * | 2016-07-12 | 2016-11-16 | 北京小米移动软件有限公司 | A kind of call connection establishment method and device |
| CN106792937A (en) * | 2016-12-08 | 2017-05-31 | 北京小米移动软件有限公司 | The processing method and processing device of call request |
| CN107567060A (en) * | 2016-07-01 | 2018-01-09 | 联发科技股份有限公司 | Support multiple services and maintain the method and user equipment of service continuity |
| WO2018040959A1 (en) * | 2016-09-05 | 2018-03-08 | 深圳市万普拉斯科技有限公司 | Voice service processing method, terminal equipment, and computer storage medium |
| CN107980231A (en) * | 2017-09-30 | 2018-05-01 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer-readable storage medium |
| CN107980232A (en) * | 2017-09-30 | 2018-05-01 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer-readable storage medium |
| CN107980230A (en) * | 2017-09-30 | 2018-05-01 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer-readable storage medium |
| CN108064463A (en) * | 2017-09-30 | 2018-05-22 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, storage medium |
| CN108135018A (en) * | 2017-09-30 | 2018-06-08 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer storage media |
| CN108235825A (en) * | 2017-09-30 | 2018-06-29 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer storage media |
| CN108235824A (en) * | 2017-09-30 | 2018-06-29 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer storage media |
| CN108323243A (en) * | 2017-09-30 | 2018-07-24 | 深圳市云中飞网络科技有限公司 | A kind of falling result detection method and device of CSFB, computer storage media |
| CN108476449A (en) * | 2016-03-30 | 2018-08-31 | 华为技术有限公司 | Handle the method and terminal device of speech business |
| CN108668305A (en) * | 2018-08-28 | 2018-10-16 | 广东小天才科技有限公司 | A kind of mobile terminal calling method and mobile terminal |
| CN109257776A (en) * | 2017-07-12 | 2019-01-22 | 中兴通讯股份有限公司 | A kind of method and device, the terminal of double-terminal circuit domain dropping |
| WO2019061431A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting fallback result of csfb, and computer storage medium |
| WO2019061490A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb-based terminal detection method and apparatus, and computer storage medium |
| WO2019061421A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting fallback result of circuit switched fallback, and storage medium |
| WO2019061469A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting csfb fallback result, and computer storage medium |
| WO2019061478A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting fallback result of csfb, and computer storage medium |
| CN109792647A (en) * | 2017-09-30 | 2019-05-21 | 深圳市云中飞网络科技有限公司 | A kind of falling result detection method and device of CSFB, storage medium |
| CN110022602A (en) * | 2018-03-14 | 2019-07-16 | 联发科技股份有限公司 | The method and communication device for a possibility that increasing the call setup success of communication device |
| CN110572855A (en) * | 2018-06-06 | 2019-12-13 | 中国移动通信集团吉林有限公司 | different-system switching method and device for Voice over Voice service |
| CN110856229A (en) * | 2019-11-21 | 2020-02-28 | 中国联合网络通信集团有限公司 | Network switching method, device and communication system |
| CN112135307A (en) * | 2016-09-30 | 2020-12-25 | 华为技术有限公司 | Telephone response method and terminal |
| CN113068235A (en) * | 2021-03-16 | 2021-07-02 | Oppo广东移动通信有限公司 | Circuit domain fallback method and device, computer readable storage medium and electronic equipment |
| CN114501559A (en) * | 2020-11-13 | 2022-05-13 | 北京小米移动软件有限公司 | Calling method and device |
| CN115119277A (en) * | 2021-03-19 | 2022-09-27 | 中国移动通信有限公司研究院 | Specific service switching method, device and computer readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045805A (en) * | 2009-10-16 | 2011-05-04 | 中兴通讯股份有限公司 | System and method for implementing circuit switched fallback service of evolved packet system |
| CN102209370A (en) * | 2010-03-31 | 2011-10-05 | 重庆重邮信科通信技术有限公司 | Method for initiating circuit switch (CS) domain voice call by LTE (long term evolution) multimode terminal under LTE access mode |
| CN103109574A (en) * | 2010-09-14 | 2013-05-15 | 高通股份有限公司 | System and method of improving circuit-switched fallback user experience |
| CN103190176A (en) * | 2010-09-14 | 2013-07-03 | 高通股份有限公司 | System and method of improving circuit-switched fallback performance |
| CN103916933A (en) * | 2012-12-31 | 2014-07-09 | 展讯通信（上海）有限公司 | Method and apparatus for realizing caller voice services |
-
2014
- 2014-07-29 CN CN201410367537.1A patent/CN105338583B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045805A (en) * | 2009-10-16 | 2011-05-04 | 中兴通讯股份有限公司 | System and method for implementing circuit switched fallback service of evolved packet system |
| CN102209370A (en) * | 2010-03-31 | 2011-10-05 | 重庆重邮信科通信技术有限公司 | Method for initiating circuit switch (CS) domain voice call by LTE (long term evolution) multimode terminal under LTE access mode |
| CN103109574A (en) * | 2010-09-14 | 2013-05-15 | 高通股份有限公司 | System and method of improving circuit-switched fallback user experience |
| CN103190176A (en) * | 2010-09-14 | 2013-07-03 | 高通股份有限公司 | System and method of improving circuit-switched fallback performance |
| CN103916933A (en) * | 2012-12-31 | 2014-07-09 | 展讯通信（上海）有限公司 | Method and apparatus for realizing caller voice services |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP: "Circuit Switched Fallback in Evolved Packet System", 《3GPP TS 23.272 V9.2.0》 * |
Cited By (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11246061B2 (en) | 2016-03-30 | 2022-02-08 | Honor Device Co., Ltd. | Voice service processing method and terminal device |
| CN108476449A (en) * | 2016-03-30 | 2018-08-31 | 华为技术有限公司 | Handle the method and terminal device of speech business |
| CN107567060A (en) * | 2016-07-01 | 2018-01-09 | 联发科技股份有限公司 | Support multiple services and maintain the method and user equipment of service continuity |
| CN106131903A (en) * | 2016-07-12 | 2016-11-16 | 北京小米移动软件有限公司 | A kind of call connection establishment method and device |
| CN106131903B (en) * | 2016-07-12 | 2019-10-29 | 北京小米移动软件有限公司 | A kind of call connection method for building up and device |
| WO2018040959A1 (en) * | 2016-09-05 | 2018-03-08 | 深圳市万普拉斯科技有限公司 | Voice service processing method, terminal equipment, and computer storage medium |
| CN112135307A (en) * | 2016-09-30 | 2020-12-25 | 华为技术有限公司 | Telephone response method and terminal |
| CN106792937A (en) * | 2016-12-08 | 2017-05-31 | 北京小米移动软件有限公司 | The processing method and processing device of call request |
| CN106792937B (en) * | 2016-12-08 | 2020-06-19 | 北京小米移动软件有限公司 | Method and device for processing call request |
| CN109257776A (en) * | 2017-07-12 | 2019-01-22 | 中兴通讯股份有限公司 | A kind of method and device, the terminal of double-terminal circuit domain dropping |
| CN108323243A (en) * | 2017-09-30 | 2018-07-24 | 深圳市云中飞网络科技有限公司 | A kind of falling result detection method and device of CSFB, computer storage media |
| WO2019061478A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting fallback result of csfb, and computer storage medium |
| CN108235825A (en) * | 2017-09-30 | 2018-06-29 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer storage media |
| CN107980231A (en) * | 2017-09-30 | 2018-05-01 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer-readable storage medium |
| CN108135018A (en) * | 2017-09-30 | 2018-06-08 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer storage media |
| WO2019061440A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb result detection method and device, and storage medium |
| WO2019061431A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting fallback result of csfb, and computer storage medium |
| WO2019061492A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb result detection method and device, and computer storage medium |
| WO2019061470A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb fallback result detection method and apparatus, and computer storage medium |
| WO2019061490A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb-based terminal detection method and apparatus, and computer storage medium |
| WO2019061488A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb fallback result detection method and apparatus, and computer storage medium |
| WO2019061496A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb fallback result detection method and apparatus, and computer storage medium |
| WO2019061429A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb result detection method and device, and computer storage medium |
| WO2019061421A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting fallback result of circuit switched fallback, and storage medium |
| WO2019061469A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting csfb fallback result, and computer storage medium |
| WO2019061482A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb result detection method and device, and computer storage medium |
| WO2019061468A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Method and device for detecting fallback result of csfb, and computer storage medium |
| CN108235824A (en) * | 2017-09-30 | 2018-06-29 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer storage media |
| CN109792647A (en) * | 2017-09-30 | 2019-05-21 | 深圳市云中飞网络科技有限公司 | A kind of falling result detection method and device of CSFB, storage medium |
| CN109792647B (en) * | 2017-09-30 | 2021-06-04 | 深圳市欢太科技有限公司 | CSFB (Circuit switched Fall Back) result detection method and device and storage medium |
| CN108064463A (en) * | 2017-09-30 | 2018-05-22 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, storage medium |
| CN108235825B (en) * | 2017-09-30 | 2021-01-19 | 深圳市欢太科技有限公司 | CSFB (Circuit switched Fall Back) fall result detection method and device and computer storage medium |
| CN108135018B (en) * | 2017-09-30 | 2021-01-19 | 深圳市欢太科技有限公司 | CSFB (Circuit switched Fall Back) fall result detection method and device and computer storage medium |
| CN107980230A (en) * | 2017-09-30 | 2018-05-01 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer-readable storage medium |
| CN107980232A (en) * | 2017-09-30 | 2018-05-01 | 深圳市云中飞网络科技有限公司 | The falling result detection method and device of CSFB a kind of, computer-readable storage medium |
| CN108235824B (en) * | 2017-09-30 | 2021-01-12 | 深圳市欢太科技有限公司 | CSFB (Circuit switched Fall Back) fall result detection method and device and computer storage medium |
| CN110022602A (en) * | 2018-03-14 | 2019-07-16 | 联发科技股份有限公司 | The method and communication device for a possibility that increasing the call setup success of communication device |
| CN110572855A (en) * | 2018-06-06 | 2019-12-13 | 中国移动通信集团吉林有限公司 | different-system switching method and device for Voice over Voice service |
| CN110572855B (en) * | 2018-06-06 | 2021-07-06 | 中国移动通信集团吉林有限公司 | Different-system switching method and device for Voice over Voice service |
| CN108668305A (en) * | 2018-08-28 | 2018-10-16 | 广东小天才科技有限公司 | A kind of mobile terminal calling method and mobile terminal |
| CN110856229A (en) * | 2019-11-21 | 2020-02-28 | 中国联合网络通信集团有限公司 | Network switching method, device and communication system |
| CN110856229B (en) * | 2019-11-21 | 2021-12-07 | 中国联合网络通信集团有限公司 | Network switching method, device and communication system |
| CN114501559A (en) * | 2020-11-13 | 2022-05-13 | 北京小米移动软件有限公司 | Calling method and device |
| CN113068235A (en) * | 2021-03-16 | 2021-07-02 | Oppo广东移动通信有限公司 | Circuit domain fallback method and device, computer readable storage medium and electronic equipment |
| CN115119277A (en) * | 2021-03-19 | 2022-09-27 | 中国移动通信有限公司研究院 | Specific service switching method, device and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105338583B (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105338583A (en) | Network switching method based on circuit switched domain fall back CSFB | |
| CN105451285B (en) | Redirecting cell method based on circuit domain dropping CSFB | |
| CN105451276A (en) | Cell change order method based on circuit switched domain fall back (CSFB) | |
| CN102461256B (en) | Method for accessing a service unavailable through a network cell | |
| CN109379768B (en) | Circuit domain switching fallback method and terminal equipment | |
| US9661567B2 (en) | Method, apparatus and system for service establishment for multi-mode user equipment | |
| EP2192749B1 (en) | Mobile communication method, mobile exchange station, radio base station and mobile station | |
| CN103517360A (en) | Switching method, system and device | |
| US9351212B2 (en) | PLMN selection method, mobile terminal, BSC and core network device | |
| EP2733987A1 (en) | Method, user equipment, and base station for changing accessed cell | |
| CN102143555A (en) | Terminal cell search method and relevant equipment and system | |
| CN105580438B (en) | Method and apparatus for cell selection | |
| CN111988820B (en) | Cell reselection control method and device | |
| US9288745B2 (en) | Cell search method of terminal and related device and system | |
| CN103167564A (en) | Long term evolution (LTE) system terminal circuit domain service back access method and corresponding network element | |
| WO2016177036A1 (en) | Voice call method and device | |
| CN106063327B (en) | Method and terminal for processing voice service | |
| CN110505667B (en) | User terminal and method and device for processing circuit switching service in LTE system of user terminal | |
| JP5097147B2 (en) | Mobile station and mobile communication method | |
| CN106255157B (en) | A method of redirection process between optimization multimode user terminal mode | |
| CN102378260A (en) | Mobility load balance realizing method and device | |
| CN112291823B (en) | Service processing method and device under NSA (non-switched network architecture) shared network and electronic equipment | |
| CN103379557A (en) | Capability matching method, access network control node and user equipment | |
| EP3618558B1 (en) | Method for enabling network to fall back and access network device | |
| CN103167575A (en) | Long term evolution (LTE) system terminal circuit domain service back access method and corresponding network element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |