CN106454968B - A kind of caller method and device based on CSFB - Google Patents
A kind of caller method and device based on CSFB Download PDFInfo
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- CN106454968B CN106454968B CN201610812277.3A CN201610812277A CN106454968B CN 106454968 B CN106454968 B CN 106454968B CN 201610812277 A CN201610812277 A CN 201610812277A CN 106454968 B CN106454968 B CN 106454968B
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004590 computer program Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- 238000013497 data interchange Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 238000004891 communication Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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Abstract
The caller method based on CSFB that the embodiment of the invention discloses a kind of, comprising: register 4G network on base station, access first community；The paging message that the first community issues is detected, when detecting the paging message that first community issues, is redirected to 2G frequency point；Receive the call control message that the first community issues；When the call control message is not connected, by the first community labeled as unavailable, and second community is switched to；Receive the paging message that the second community issues.In addition, the embodiment of the invention also discloses a kind of originating devices based on CSFB.Using the present invention, caller success rate of the terminal based on CSFB scheme in the case where serving cell congestion can be improved.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of caller method and devices based on CSFB.
Background technique
Due to the more new development of wireless communication technique, most area has covered 4G network, and user can enjoy 4G
The experience of network bring fast network access.In existing LTE terminal, data service is transmitted by 4G network, and language
Sound business, short message service still need to be transmitted by the network 2/3G, in order to solve LTE terminal on two networks to
Machine, CSFB (Circuit Switched Fallback, circuit domain dropping) is a kind of common solution, specifically, being based on
The terminal of CSFB can only operate under a network, such as when working under 4G network, when there is voice incoming call, pass through falling
Mode is returned under 2/3G network and is worked, and 4G network is returned to after voice communication terminates, that is to say, that uses CSFB scheme 4G net
Network and voice cannot carry out simultaneously.
In general, in the case where LTE terminal receives paging and carries out caller, terminal can fall back to 2G network, and
Caller is carried out under 2G network.But there may be the situations of congestion exception for the current serving cell of terminal, i.e., without available circuit domain
Or without available signal, in this case, it will cause caller failure and actively hang up the telephone.Also, the position locating for terminal
Set it is constant in the case where, when user initiates caller again, it is likely that encounter the situation of current area or congestion exception again, i.e.,
Client-initiated caller can fail again.
That is, the serving cell congestion for the existing LTE terminal under CSFB scheme, locating for terminal
In the case where, caller success rate is insufficient, poor user experience.
Summary of the invention
Based on this, to solve the LTE terminal being directed under CSFB scheme in traditional technology because of network busy, locating service
The case where small area jam caused caller success rate deficiency technical problem, spy propose a kind of caller method based on CSFB.
A kind of caller method based on CSFB, comprising:
4G network is registered on base station, accesses first community；
The paging message that the first community issues is detected to reset when detecting the paging message that first community issues
To 2G frequency point；
Receive the call control message that the first community issues；
When the call control message is not connected, by the first community labeled as unavailable, and second is switched to
Cell；
Receive the paging message that the second community issues.
In addition, small because of network busy, locating service for the LTE terminal under CSFB scheme in traditional technology to solve
The case where area's congestion caused caller success rate deficiency technical problem, spy propose a kind of originating devices based on CSFB.
A kind of originating devices based on CSFB, comprising:
4G network registry module accesses first community for registering 4G network on base station；
2G network registry module, the paging message issued for detecting the first community, in the case where detecting first community
When the paging message of hair, it is redirected to 2G frequency point；
Call control message receiving module, the call control message issued for receiving the first community；
Cell switching module, for when the call control message is not connected, the first community to be labeled as not
It can use, and switch to second community；
Paging message receiving module, the paging message issued for receiving the second community.
Implement the embodiment of the present invention, will have the following beneficial effects:
After the above-mentioned caller method and apparatus based on CSFB, for the LTE terminal using CSFB scheme,
Terminal is usually registered under 4G network, is fallen after rise when needed to 2G network and is completed corresponding voice service, if also, falling after rise extremely
Locating serving cell congestion leads to current call failure when 2G network, then corresponding serving cell is labeled as unavailable shape
State, and other available serving cells are back switched to, and complete voice service under serving cell after the handover.Namely
It says, if serving cell congestion, the serving cell is labeled as down state automatically, cannot be made when registering 2G network next time
With the serving cell of the congestion, so that the call request initiated again is not based on the serving cell of the congestion, to keep away
Call failure again is exempted from, to improve the success rate that call connection is established, the user experience is improved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Wherein:
Fig. 1 is a kind of flow diagram of the caller method based on CSFB in one embodiment；
Fig. 2 is a kind of structural schematic diagram of the originating devices based on CSFB in one embodiment；
Fig. 3 is the structural schematic diagram that the computer equipment of the aforementioned caller method based on CSFB is run in one embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
To solve gathering around for the LTE terminal under CSFB scheme because of network busy, locating serving cell in traditional technology
The case where plug caused caller success rate deficiency technical problem, in the present embodiment, spy propose a kind of master based on CSFB
It is method, the realization of this method can be dependent on computer program, which can run on based on von Neumann system
On computer system, which can be the application program of the 4G/2G network management in terminal.The computer system
It can be the server such as smart phone, tablet computer or terminal for running above-mentioned computer program.
It should be noted that in the present embodiment, the above-mentioned caller method based on CSFB is based on using CSFB scheme
LTE terminal, that is to say, that LTE terminal is usually resident in LTE network, when needing to complete voice service (such as answer
Phone is made a phone call) domain CS of falling back to 2G/3G network again completes current voice service, i.e., and the terminal will not stay simultaneously
It stays on 4G network and 2/3G network.
Specifically, as shown in Figure 1, the above-mentioned caller method based on CSFB includes the following steps:
Step S102: registering 4G network on base station, accesses first community.
In the present embodiment, terminal after power-up, is normally carried out network registry, i.e., to corresponding base station login 4G net
Network, and access base station is the cell of the terminal distribution, that is, accesses first community.
Step S104: detecting the paging message that the first community issues, and disappears in the paging for detecting that first community issues
When breath, it is redirected to 2G frequency point.
When terminal is standby under 4G network, if the call request that other terminals for receiving network side transmission are sent, or
Person user initiates to request for other terminal calls to network side at the terminal, and the 4G network for needing currently to register terminal is fallen after rise
Current voice service is completed on to the circuit domain of 2/3G network.When terminal receives the call request of other terminals transmission,
The 4G network punching of original annotation volume is directed to 2G frequency point, the i.e. specified frequency point in base station, and sends corresponding Paging_ to network side
Reponse.Network side is established call by corresponding 2G frequency point and is connected after the Paging_Reponse for receiving terminal return
It connects.
If terminal receives the call request for other terminals of user's input, terminal can be inputted automatically according to user
Call request falls the 4G network that terminal is currently registered to the hair for completing current call business in the circuit domain of 2/3G network after rise
It rises, i.e., initiates corresponding network switching request to base station, the 4G network currently registered is fallen after rise to 2G frequency point, and under 2G frequency point
Corresponding call request is initiated to base station.
Because terminal is in first community, terminal is also seeking of detecting that network side issues under first community
Message is exhaled, also, after being redirected to 2G frequency point, the correlation that the first community under corresponding 2G frequency point receives network side disappears
Breath.
Step S106: the call control message that the first community issues is received；It is not connect in the call control message
When connecing, step S108 is executed: by the first community labeled as unavailable, and switching to second community；Step S110: institute is received
State the paging message that second community issues；When the call control message is successful connection, step S112 is executed: by described
2G frequency point establishes call connection.
In the present embodiment, terminal can be sent small for first accordingly after being redirected to 2G frequency point to network side
The feedback message for the paging message that area issues, network side, can be for corresponding after the feedback message for receiving terminal transmission
Feedback message establishes corresponding call connection.It should be noted that in the present embodiment, because terminal is redirected to 2G frequency point
Later, the corresponding cell of corresponding 2G frequency point causes call to connect there may be can be used because of no available circuit domain or without channel
It establishes unsuccessful.That is, network side can establish present terminal according to the corresponding serving cell of 2G frequency point after redirection
Call between other terminals is connect, if but current call establishment of connection because of no available circuit domain or can without channel
With and fail, network side can actively hang up the telephone, and send corresponding message to terminal by first community, in the present embodiment
In, i.e., call control message is issued to terminal, not connected related news is contained in the call control message, and include
The relevant not connected reason not connected to call connection.In the case where call connection is successfully established, network side also can be to
Terminal sends corresponding call control message, and the related content of successful connection is contained in the call control message.
It should be noted that in the present embodiment, in the case where call control message is successful connection, passing through 2G frequency point
Establish call connection.But in the case where call control message is not connected, in order to avoid terminal is initiating calling next time
When, it reuses the serving cell of the congestion and calling is caused still to fail, therefore, corresponding first community is labeled as can not
With that is, labeled as not available cell in registered network or during the redirection of 2G frequency point, this is small by unusable
Area needs to select other cells in adjacent cell.Further, if call connection of the terminal under first community is established not
A possibility that success, the call request initiated again corresponding call connection failure also very greatly, therefore, is in call control message
In the case where not connected, in adjacent available cell, one is selected to cut as Target cell, and by the cell currently connected
It shifts to second community, and goes to continue to test the message that network side issues in second community.
After terminal switches to second community, the message that network side issues can be detected under second community, also,
In the present embodiment, optional scheme further includes, if receive contained in the call control message that network side issues it is not connected,
After cell handover success, call connection is re-established by the 2G frequency point after switching.
Optionally, in one embodiment, above-mentioned that the first community is labeled as not available step further include: in institute
Stating call control message is to obtain the not connected reason for including when being not connected in the call control message, and judgement is described not to be connected
Whether include No circuit/channel avaible, if so, by the first community labeled as unavailable if connecing in reason.
Call connection establish unsuccessful reason may there are many, can solve in aforementioned manners call connection establish it is unsuccessful
The problem of the case where include No circuit/channel avaible, i.e., without available circuit domain or without available channel, therefore,
In the case that failure is established in the call connection caused by other reasons, not by the current serving cell of terminal (i.e. first community)
Labeled as unavailable.
Further, in another embodiment, if in the case that failure is established in above-mentioned call connection, if call connection is built
The reason of vertical failure does not include No circuit/channel avaible, then discharges the occupied channel of present terminal.
It should be noted that in the present embodiment, failure is established in current call connection, the service being presently in is illustrated
Small area jam, but the case where serving cell congestion may improve with the time or terminal locating for serving cell can be with
The variation of terminal present position and change, therefore, for labeled as not available serving cell, in serving cell congestion
Situation improved or user described in serving cell position change after, so that it may it is small to related service before removal
The label of the down state in area.
Specifically, in the present embodiment, by the first community labeled as after not available step further include: setting with
The corresponding timer of the first community, and the wakeup time that the timer is arranged is preset duration；It is called out in the timer
When waking up, the down state of the first community is removed.
That is, it is respectively provided with a corresponding timer when each serving cell is labeled as down state,
And in the case where timer is waken up, i.e., the label of the removable down state to the serving cell.For example, can set
Setting the corresponding wakeup time of timer is preset time span, such as 30min.
In addition, small because of network busy, locating service for the LTE terminal under CSFB scheme in traditional technology to solve
The case where area's congestion caused caller success rate deficiency technical problem, in one embodiment, as shown in Figure 2, it is also proposed that
A kind of originating devices based on CSFB, including 4G network registry module 102,2G network registry module 104, call control message connect
Receive module 106, cell switching module 108 and paging message receiving module 110, in which:
4G network registry module 102 accesses first community for registering 4G network on base station；
2G network registry module 104, the paging message issued for detecting the first community, is detecting first community
When the paging message issued, it is redirected to 2G frequency point；
Call control message receiving module 106, the call control message issued for receiving the first community；
Cell switching module 108, for when the call control message is not connected, the first community to be labeled as
It is unavailable, and switch to second community；
Paging message receiving module 110, the paging message issued for receiving the second community.
Optionally, in one embodiment, it as shown in Fig. 2, above-mentioned apparatus further includes call connection establishment module 112, uses
In when the call control message is successful connection, call connection is established by the 2G frequency point.
Optionally, in one embodiment, cell switching module 108 is also used in the call control message be not connected
When, the not connected reason for including in the call control message is obtained, judges in the not connected reason whether to include No
Circuit/channel avaible, if so, by the first community labeled as unavailable.
Optionally, in one embodiment, cell switching module 108 is also used in the not connected reason not include No
When circuit/channel avaible, channel is discharged.
Optionally, in one embodiment, cell switching module 108 is also used to be arranged corresponding with the first community fixed
When device, and be arranged the timer wakeup time be preset duration；When the timer wakes up, the first community is removed
Down state.
Implement the embodiment of the present invention, will have the following beneficial effects:
After the above-mentioned caller method and apparatus based on CSFB, for the LTE terminal using CSFB scheme,
Terminal is usually registered under 4G network, is fallen after rise when needed to 2G network and is completed corresponding voice service, if also, falling after rise extremely
Locating serving cell congestion leads to current call failure when 2G network, then corresponding serving cell is labeled as unavailable shape
State, and other available serving cells are back switched to, and complete voice service under serving cell after the handover.Namely
It says, if serving cell congestion, the serving cell is labeled as down state automatically, cannot be made when registering 2G network next time
With the serving cell of the congestion, so that the call request initiated again is not based on the serving cell of the congestion, to keep away
Call failure again is exempted from, to improve the success rate that call connection is established, the user experience is improved.
In one embodiment, as shown in figure 3, Fig. 3 illustrates a kind of base for running the above-mentioned caller method based on CSFB
In the terminal of the computer system of von Neumann system.The computer system can be smart phone, tablet computer, palm electricity
The terminal devices such as brain, laptop or PC.Specifically, may include the outer input interface connected by system bus
1001, processor 1002, memory 1003 and output interface 1004.Wherein, outer input interface 1001 optionally can be wrapped at least
Include network interface 10012.Memory 1003 may include external memory 10032 (such as hard disk, CD or floppy disk etc.) and interior storage
Device 10034.Output interface 1004 can include at least the equipment such as display screen 10042.
In the present embodiment, the operation of this method is based on computer program, and the program file of the computer program is stored in
In the external memory 10032 of the aforementioned computer system based on von Neumann system, it is loaded into built-in storage at runtime
It in 10034, is then compiled as being transferred in processor 1002 after machine code executing, so that being based on von Neumann system
Computer system in form 4G network registry module 102 in logic, 2G network registry module 104, call control message and connect
Receive module 106, cell switching module 108, paging message receiving module 110 and call connection establishment module 112.And above-mentioned
In caller method implementation procedure based on CSFB, the parameter of input passes through outer input interface 1001 and receives, and is transferred to and deposits
It is cached in reservoir 1003, is then input in processor 1002 and is handled, the result data of processing or be cached in memory
It is subsequently handled in 1003, or is passed to output interface 1004 and is exported.
Those skilled in the art can be by different embodiments described in this specification and the feature of different embodiments
It is combined.Module or unit in all embodiments of the invention can pass through universal integrated circuit, such as CPU
(Central Processing Unit, central processing unit), or pass through ASIC (Application Specific
Integrated Circuit, specific integrated circuit) Lai Shixian.
Step in all embodiments of the invention method can be sequentially adjusted, merged and deleted according to actual needs；
Module or unit in all embodiments of the invention device can be combined, divided and deleted according to actual needs.Flow chart
In or any process described otherwise above herein or method description be construed as, indicate include one or more use
In module, segment or the part of the code for realizing specific logical function or executable instruction the step of process, and the present invention
The range of preferred embodiment include other realization, wherein sequence shown or discussed can not be pressed, including according to institute
The function being related to by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be belonging to the embodiment of the present invention
Those skilled in the art are understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.Those skilled in the art be understood that realize above-described embodiment method carry all or part of the steps be can
To instruct relevant hardware to complete by program, the program be can store in a kind of computer readable storage medium,
The program when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Above disclosed is only presently preferred embodiments of the present invention, those of ordinary skill in the art will appreciate that realizing
The all or part of the process of above-described embodiment, and equivalent changes made in accordance with the claims of the present invention still fall within invention and are covered
Range.
Claims (9)
1. a kind of caller method based on CSFB characterized by comprising
4G network is registered on base station, accesses first community；
The paging message that the first community issues is detected, determination will be current when detecting the paging message that first community issues
The 4G network of registration is fallen after rise to circuit domain, is redirected to 2G frequency point；
Receive the call control message that the first community issues；
When the call control message is not connected, the not connected reason for including in the call control message is obtained, is judged
It whether include No circuit/channel avaible in the not connected reason, if so, the first community is marked
To be unavailable, and switch to second community；
Receive the paging message that the second community issues.
2. the caller method according to claim 1 based on CSFB, which is characterized in that under the detection first community
After the step of paging message of hair further include:
When the call control message is successful connection, call connection is established by the 2G frequency point.
3. the caller method according to claim 1 based on CSFB, which is characterized in that the judgement not connected reason
In whether include the steps that No circuit/channel avaible after further include:
When not including No circuit/channel avaible in the not connected reason, channel is discharged.
4. the caller method according to claim 1 based on CSFB, which is characterized in that described to mark the first community
After not available step further include:
The wakeup time that timer corresponding with the first community is arranged, and the timer is arranged is preset duration；
When the timer wakes up, the down state of the first community is removed.
5. a kind of originating devices based on CSFB characterized by comprising
4G network registry module accesses first community for registering 4G network on base station；
2G network registry module, the paging message issued for detecting the first community are detecting what first community issued
Determination falls the 4G network currently registered to circuit domain after rise when paging message, is redirected to 2G frequency point；
Call control message receiving module, the call control message issued for receiving the first community；
Cell switching module includes for obtaining in the call control message when the call control message is not connected
Not connected reason, judge in the not connected reason whether to include No circuit/channel avaible, if so, will
The first community switches to second community labeled as unavailable；
Paging message receiving module, the paging message issued for receiving the second community.
6. the originating devices according to claim 5 based on CSFB, which is characterized in that described device further includes call connection
Module is established, for establishing call connection by the 2G frequency point when the call control message is successful connection.
7. the originating devices according to claim 5 based on CSFB, which is characterized in that the cell switching module is also used to
When not including No circuit/channel avaible in the not connected reason, channel is discharged.
8. the originating devices according to claim 5 based on CSFB, which is characterized in that the cell switching module is also used to
The wakeup time that timer corresponding with the first community is arranged, and the timer is arranged is preset duration；Described fixed
When device wake up when, remove the down state of the first community.
9. a kind of computer readable storage medium, which is characterized in that it stores the computer program for being used for electronic data interchange,
In, the computer program makes computer execute method according to any of claims 1-4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610812277.3A CN106454968B (en) | 2016-09-08 | 2016-09-08 | A kind of caller method and device based on CSFB |
| PCT/CN2017/092100 WO2018045810A1 (en) | 2016-09-08 | 2017-07-06 | Csfb-based calling method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610812277.3A CN106454968B (en) | 2016-09-08 | 2016-09-08 | A kind of caller method and device based on CSFB |
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| CN106454968A CN106454968A (en) | 2017-02-22 |
| CN106454968B true CN106454968B (en) | 2019-07-26 |
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| CN201610812277.3A Active CN106454968B (en) | 2016-09-08 | 2016-09-08 | A kind of caller method and device based on CSFB |
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| WO (1) | WO2018045810A1 (en) |
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| CN106454968B (en) * | 2016-09-08 | 2019-07-26 | Oppo广东移动通信有限公司 | A kind of caller method and device based on CSFB |
| CN107371203B (en) * | 2017-08-28 | 2020-06-05 | Oppo广东移动通信有限公司 | Method for establishing call and related product |
| CN108064456B (en) * | 2017-09-30 | 2021-09-03 | 深圳市欢太科技有限公司 | Abnormal frequency point detection method and device and computer storage medium |
| CN108684061A (en) * | 2018-04-25 | 2018-10-19 | 北京小米移动软件有限公司 | Paging method, device and computer readable storage medium |
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| CN106454968A (en) | 2017-02-22 |
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