CN109257776A - A kind of method and device, the terminal of double-terminal circuit domain dropping - Google Patents
A kind of method and device, the terminal of double-terminal circuit domain dropping Download PDFInfo
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- CN109257776A CN109257776A CN201710564119.5A CN201710564119A CN109257776A CN 109257776 A CN109257776 A CN 109257776A CN 201710564119 A CN201710564119 A CN 201710564119A CN 109257776 A CN109257776 A CN 109257776A
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- sim card
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
-
- 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
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
Method and device, the terminal of a kind of double-terminal circuit domain dropping are disclosed herein, when including: that circuit domain dropping occurs for the first SIM card, judge whether the second SIM card meets two following conditions: second SIM card currently normally resides in 2G or 3G cell and the current serving cell of the second SIM card is capable of providing CS business；The PLMN of cell where second SIM card and first SIM card belong to identical operator or second SIM card is that the PLMN of cell where second SIM card of RPLMN or described of the first SIM card is present in EPLMN the or EHPLMN list of first SIM card；When second SIM card meets described two conditions simultaneously, first SIM card is fallen back into the current serving cell of second SIM card.The application can be improved the success rate of double-terminal CSFB cell selection for the first time, shortens and falls time delay after rise.
Description
Technical field
The present invention relates to the communications fields, and in particular to a kind of method and device, the terminal of double-terminal circuit domain dropping.
Background technique
Currently, circuit domain dropping (CSFB, Circuit Switch Fallback) technology is terminal in long term evolution
A process for needing often trigger when telephone service in (LTE, Long Term Evolution) network.Terminal exists
During CSFB, often fall after rise network redirection cell failure the case where, terminal can only continue searching other cells,
Until being successfully resident certain cell and establishing telephone service, it is longer that this may cause CSFB time delay.
There are the following problems for the relevant technologies: the frequency point that terminal falls back to network instruction but occurs can not to be resident or access failure
The case where, terminal needs to continue searching other cells, and it is longer that this may cause CSFB time delay, influences user experience.
Summary of the invention
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of method of double-terminal circuit domain dropping and
Device, terminal can be improved the success rate of double-terminal CSFB cell selection for the first time, shorten and fall time delay after rise, improve user experience.
This application provides:
A kind of method of double-terminal circuit domain dropping, comprising:
When circuit domain dropping occurs for the first SIM card, judge whether the second SIM card meets two following conditions:
Second SIM card currently normally resides in 2G or 3G cell and the current serving cell of the second SIM card can mention
For circuit switching (CS) business；
Second SIM card and first SIM card belong to cell where identical operator or second SIM card
Public land mobile network PLMN be the first SIM card registered 2nd SIM of public land mobile network RPLMN or described
The reciprocity public land mobile network EPLMN or of equal value that the PLMN of cell where card is present in first SIM card belongs to public
In land mobile network EHPLMN list；
When second SIM card meets described two conditions simultaneously, first SIM card is fallen back to described second
The current serving cell of SIM card.
Wherein, it is described judge whether the second SIM card meets two following conditions after, further includes: in second SIM card
When can not meet described two conditions simultaneously, first SIM card is fallen back to the frequency point of network redirection instruction.
Wherein, it is described judge whether the second SIM card meets two following conditions before, further includes: in first SIM card
Receive network redirection instruction.
It is wherein, described to judge whether the second SIM card meets two following conditions, comprising:
Judge whether second SIM card meets first condition, the first condition is that second SIM card is currently normal
It resides in 2G or 3G cell and the current serving cell of the second SIM card is capable of providing CS business；
When judging that second SIM card meets in first condition, continue to judge whether second SIM card meets second
First of first of condition, the second condition belongs to identical operation for second SIM card and first SIM card
Quotient；
When judging that second SIM card meets first of the first condition and the second condition, then institute is judged
It states the second SIM card while meeting described two conditions；
When judging that second SIM card is unsatisfactory for first of the second condition, then continue to judge the 2nd SIM
Whether card meets the Article 2 of the second condition, and the Article 2 of the second condition is one of following:
The PLMN of cell where second SIM card is the registered public land mobile network of first SIM card
RPLMN；
The PLMN of cell is present in the reciprocity public land mobile network of first SIM card where second SIM card
In the list of EPLMN or Home Public Land Mobile Network, HPLMN EHPLMN of equal value；
When judging that second SIM card meets the Article 2 of the first condition and second condition, then described is judged
Two SIM cards meet described two conditions simultaneously.
A kind of device of double-terminal circuit domain dropping, comprising:
Judgment module, for judging whether the second SIM card meets following two when circuit domain dropping occurs for the first SIM card
A condition:
Second SIM card currently normally resides in 2G or 3G cell and the current serving cell of the second SIM card can mention
For circuit switching (CS) business；
Second SIM card and first SIM card belong to cell where identical operator or second SIM card
Public land mobile network PLMN be the first SIM card registered 2nd SIM of public land mobile network RPLMN or described
The reciprocity public land mobile network EPLMN or of equal value that the PLMN of cell where card is present in first SIM card belongs to public
In land mobile network EHPLMN list；
Execution module, for when second SIM card meets described two conditions simultaneously, first SIM card to be returned
Fall on the current serving cell of second SIM card.
Wherein, the execution module is also used to when second SIM card can not meet described two conditions simultaneously,
First SIM card is fallen back to the frequency point of network redirection instruction.
Wherein, further includes: receiving module, for receiving network redirection instruction in first SIM card.
A kind of terminal, comprising:
First SIM card；
Second SIM card；
It is stored with the memory of double-terminal circuit domain dropping program；
Processor is configured to execute the double-terminal circuit domain dropping program to execute operations described below: the first SIM card hair
When raw circuit domain dropping, judge whether the second SIM card meets two following conditions: second SIM card is currently normally resided in
2G the or 3G cell and current serving cell of the second SIM card is capable of providing circuit switching (CS) business；Second SIM card with it is described
The public land mobile network PLMN of cell is first where first SIM card belongs to identical operator or second SIM card
The PLMN of cell where registered second SIM card of public land mobile network RPLMN or described of SIM card is present in described the
In the reciprocity public land mobile network EPLMN of one SIM card or Home Public Land Mobile Network, HPLMN EHPLMN list of equal value；Institute
When stating the second SIM card while meeting described two conditions, first SIM card is fallen back into the current clothes of second SIM card
Business cell.
Wherein, the processor, is configured to execute the double-terminal circuit domain dropping program and also executes operations described below:
When second SIM card can not meet described two conditions simultaneously, first SIM card is fallen back into network redirection instruction
Frequency point.
Wherein, the processor, is configured to execute the double-terminal circuit domain dropping program and also executes operations described below: institute
It states before judging whether the second SIM card meets two following conditions, receives network redirection instruction in first SIM card.
A kind of computer readable storage medium is stored with double-terminal circuit domain on the computer readable storage medium and returns
Program is fallen, the double-terminal circuit domain dropping program realizes the side of above-mentioned double-terminal circuit domain dropping when being executed by processor
The step of method.
In the embodiment of the present invention, when the second SIM card meets scheduled two conditions, no matter network is either with or without being first
The target frequency point that SIM card instruction is fallen after rise, the first SIM card preferentially falls back to the serving cell where the second SIM card, in this way, can be with
The success rate for improving double-terminal CSFB cell selection for the first time, shortens and falls time delay after rise, improves user experience.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the flow diagram of the method for double-terminal of embodiment of the present invention circuit domain dropping；
Fig. 2 is the flow diagram that circuit domain dropping occurs for double-terminal of the embodiment of the present invention；
Fig. 3 is the specific implementation flow schematic diagram of double-terminal of embodiment of the present invention circuit domain dropping；
Fig. 4 is the composed structure schematic diagram of the device of double-terminal of embodiment of the present invention circuit domain dropping；
Fig. 5 is the structural schematic diagram of double-terminal of the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Embodiment one
As shown in Figure 1, the method for double-terminal circuit domain dropping may include:
Step 101: when CSFB occurs for the first SIM card, the second SIM card is made the following judgment:
1) the second SIM card currently normally resides in 2G or 3G cell, and the second SIM card serving cell can provide circuit friendship
Change (CS, Circuit Switched) business.
2) PLMN of cell is where the second SIM card and the first SIM card belong to identical operator or the second SIM card
The RPLMN of the first SIM card or PLMN of the second SIM card place cell is present in EPLMN or the EHPLMN column of the first SIM card
In table；
Step 102: when second SIM card meets described two conditions simultaneously, first SIM card being fallen back into institute
State the current serving cell of the second SIM card.
Here, when second SIM card can not meet described two conditions simultaneously, that is to say, that above-mentioned two condition
It cannot meet simultaneously, then first SIM card can be fallen back to the frequency point of network redirection instruction.
In practical application, it is described judge whether the second SIM card meets two following conditions before, can also include: in institute
It states the first SIM card and receives network redirection instruction.When first SIM card receives network redirection instruction, show described the
CSFB occurs for one SIM card.
In the present embodiment, it is described judge whether the second SIM card meets the processes of two following conditions can be according to following step
It is rapid to realize:
Step 1, judges whether second SIM card meets first condition, and the first condition is second SIM card
It currently normally resides in 2G or 3G cell and the current serving cell of the second SIM card is capable of providing CS business；
Step 2 continues whether to judge second SIM card when judging that second SIM card meets in first condition
Meet first of second condition, first of the second condition belongs to phase with first SIM card for second SIM card
Same operator；
Step 3, when judging that second SIM card meets first of the first condition and the second condition, then
Judge second SIM card while meeting described two conditions；
Step 4 then continues described in judgement when judging that second SIM card is unsatisfactory for first of the second condition
Whether the second SIM card meets the Article 2 of the second condition, and the Article 2 of the second condition is one of following:
The PLMN of cell where second SIM card is the registered public land mobile network of first SIM card
RPLMN；
The PLMN of cell is present in the reciprocity public land mobile network of first SIM card where second SIM card
In the list of EPLMN or Home Public Land Mobile Network, HPLMN EHPLMN of equal value；
Step 5 then judges when judging that second SIM card meets the Article 2 of the first condition and second condition
Second SIM card meets described two conditions simultaneously.
The method of the present embodiment, after the first SIM card receives network redirection instruction, by judging staying for the second SIM card
State is stayed to determine Target cell that the first SIM card is preferentially fallen after rise.If the second SIM card meets above-mentioned two condition, the first SIM
Card ignores network redirection instruction, preferential to attempt to be resident the serving cell to the second SIM card.Because for the first SIM card,
Other than known to the service quality of the second SIM card current service cell, the service quality of other cells is all unknown, falling
It is likely to that there is a situation where resident failure or access failures to other cells.Since the second SIM card can normally reside in its
Serving cell, the first SIM card also can normally be resident the cell.Double-terminal CSFB can be improved in the present embodiment, and cell is selected for the first time
The success rate selected shortens and falls time delay after rise, improves user experience.
As shown in Fig. 2, the process of the application double-terminal CSFB may include:
Step 201, terminal receives paging (Paging) message for coming from base station (eNodeB)；
Step 202, terminal sends to mobility management unit (Mobility Management Entity, MME) and extends
Service request (Extended service request)；
Step 203, the wireless heterogeneous networks Connection Release (RRC connection release) from eNodeB is received
Message；
Step 204, terminal executes cell-reselection procedure (Cell selection procedure)；
Here, this step may include: when the first SIM card (the first SIM card can be any card) occur CSFB when, it is right
Second SIM card makes the following judgment: 1) the second SIM card currently normally resides in 2G or 3G cell, and the second SIM card serving cell
CS business can be provided；2) cell where the second SIM card and the first SIM card belong to identical operator or the second SIM card
PLMN is the RPLMN of the first SIM card or is present in EPLMN the or EHPLMN list of the first SIM card；If two above condition
Meet simultaneously, then no matter network is either with or without the target frequency point fallen after rise for the instruction of the first SIM card, the first SIM card all should preferentially taste
Examination is resident to the serving cell where the second SIM card.Because for the first SIM card, in addition to the second SIM card current service is small
Except known to the service quality in area, the service quality of other cells be all it is unknown, fall back to other cells and be likely to occur
The case where resident failure or access failure.If the first SIM card falls back to the serving cell failure of the second SIM card, can taste again
Other frequency points are searched in examination, concurrently play telephone service until being successfully resident.
Step 205, execution position area updates (Location area update) between terminal, eNodeB and MME；
Step 206, call setup (Call establishment) is executed between terminal, eNodeB and MME.
As shown in figure 3, the process of the application double-terminal CSFB may include:
Step 301, the first SIM card executes CSFB, receives network redirection instruction；
Step 302, judge whether the second SIM card currently normally resides in 2G or 3G cell and the second SIM card serving cell
Whether CS business can be provided, if it is, continuing step 303, if otherwise continuing step 306；
Step 303, judge that the second SIM card and the first SIM card belong to identical operator；If it is continue step 305,
If otherwise continuing step 304；
Step 304, public land mobile network (PLMN, Public the Land Mobile of cell where the second SIM card
Network) whether be the first SIM card registered public land mobile network (Registerd Public Land Mobile
Network, RPLMN) or whether be present in the first SIM card reciprocity public land mobile network (EPLMN) or ownership of equal value it is public
With in land mobile network (EHPLMN, Equivalent Home Public Land Mobile Network) list；If
It is to continue step 305, if otherwise continuing step 306；
Step 305, the first SIM card ignores the frequency point of network redirection instruction, preferentially falls back to the current clothes of the second SIM card
Business cell.
Step 306, the frequency point of the first SIM card search network redirection instruction, selection are fallen back to indicated by network redirection
Frequency point.
Embodiment two
A kind of device of double-terminal circuit domain dropping, as shown in Figure 4, comprising:
Judgment module 41, for it is as follows to judge whether the second SIM card meets when circuit domain dropping occurs for the first SIM card
Two conditions:
Second SIM card currently normally resides in 2G or 3G cell and the current serving cell of the second SIM card can mention
For circuit switching (CS) business；
Second SIM card and first SIM card belong to cell where identical operator or second SIM card
Public land mobile network PLMN be the first SIM card registered 2nd SIM of public land mobile network RPLMN or described
The reciprocity public land mobile network EPLMN or of equal value that the PLMN of cell where card is present in first SIM card belongs to public
In land mobile network EHPLMN list；
Execution module 42, for second SIM card simultaneously meet described two conditions when, by first SIM card
Fall back to the current serving cell of second SIM card.
Wherein, the execution module 42, it may also be used for described two conditions can not be met simultaneously in second SIM card
When, first SIM card is fallen back to the frequency point of network redirection instruction.
Wherein, above-mentioned apparatus can also include: receiving module 40, can be used for resetting in first SIM card reception network
To instruction.
In the present embodiment, judgment module 41 judges whether the second SIM card meets the processes of two following conditions can be according to
Following steps are realized:
Step 1, judges whether second SIM card meets first condition, and the first condition is second SIM card
It currently normally resides in 2G or 3G cell and the current serving cell of the second SIM card is capable of providing CS business；
Step 2 continues whether to judge second SIM card when judging that second SIM card meets in first condition
Meet first of second condition, first of the second condition belongs to phase with first SIM card for second SIM card
Same operator；
Step 3, when judging that second SIM card meets first of the first condition and the second condition, then
Judge second SIM card while meeting described two conditions；
Step 4 then continues described in judgement when judging that second SIM card is unsatisfactory for first of the second condition
Whether the second SIM card meets the Article 2 of the second condition, and the Article 2 of the second condition is one of following:
The PLMN of cell where second SIM card is the registered public land mobile network of first SIM card
RPLMN；
The PLMN of cell is present in the reciprocity public land mobile network of first SIM card where second SIM card
In the list of EPLMN or Home Public Land Mobile Network, HPLMN EHPLMN of equal value；
Step 5 then judges when judging that second SIM card meets the Article 2 of the first condition and second condition
Second SIM card meets described two conditions simultaneously.
The device of the present embodiment, receiving module 40 pass through judgment module after the first SIM card receives network redirection instruction
41 judge the resident state of the second SIM card to determine Target cell that the first SIM card is preferentially fallen after rise.If the second SIM card meets
Above-mentioned two condition, execution module 42 indicate the network redirection for ignoring the first SIM card, preferential to attempt to stay the first SIM card
It is left to the serving cell of the second SIM card.Because for the first SIM card, in addition to the service of the second SIM card current service cell
Except known to quality, the service quality of other cells be all it is unknown, fall back to other cells and be likely to that resident failure occurs
Or the case where access failure.Since the second SIM card can normally reside in its serving cell, the first SIM card also can be normally resident
To the cell, it is thus possible to improve the success rate of double-terminal CSFB cell selection for the first time, shortens and falls time delay after rise, improve user
Experience.
All details of one the method for embodiment may be implemented in the device of double-terminal circuit domain dropping in the present embodiment,
It can refer to the related description of method.In practical application, the device of double-terminal circuit domain dropping can be by setting in the present embodiment
The double card being placed in method or the present embodiment of the double-terminal (such as mobile phone) to realize above-mentioned function and embodiment one is whole
The device of terminal circuit domain dropping can be realized directly as terminal.
In practical application, receiving module 40, judgment module 41, execution module 42 can pass through software, hardware or two respectively
The mode that person combines is realized.For example, receiving module 40, judgment module 41, execution module 42 can pass through the processing of double-terminal
Device executes corresponding circuit domain dropping program to realize.Herein with no restriction to this.
Embodiment three
A kind of terminal, as shown in Figure 5, comprising:
First SIM card 51；
Second SIM card 52；
It is stored with the memory 53 of double-terminal circuit domain dropping program；
Processor 54 is configured to execute the double-terminal circuit domain dropping program to execute operations described below: the first SIM card
When circuit domain dropping occurs, judge whether the second SIM card meets two following conditions: second SIM card is currently normally resident
In 2G or 3G cell and the current serving cell of the second SIM card is capable of providing circuit switching (CS) business；Second SIM card and institute
The public land mobile network PLMN for stating cell where the first SIM card belongs to identical operator or second SIM card is the
The PLMN of cell is present in described where registered second SIM card of public land mobile network RPLMN or described of one SIM card
In the reciprocity public land mobile network EPLMN of first SIM card or Home Public Land Mobile Network, HPLMN EHPLMN list of equal value；?
When second SIM card meets described two conditions simultaneously, it is current that first SIM card is fallen back into second SIM card
Serving cell.
Wherein, the processor 54, is configured to execute the double-terminal circuit domain dropping program and also executes operations described below:
When second SIM card can not meet described two conditions simultaneously, first SIM card is fallen back into network redirection and is referred to
The frequency point shown.
Wherein, the processor 54, is configured to execute the double-terminal circuit domain dropping program and also executes operations described below:
It is described judge whether the second SIM card meets two following conditions before, first SIM card receive network redirection instruction.
All details of one the method for embodiment may be implemented in terminal in the present embodiment, can refer to the phase of correlation method
It speaks on somebody's behalf bright.
In the present embodiment, terminal is after the first SIM card receives network redirection instruction, by judging staying for the second SIM card
State is stayed to determine Target cell that the first SIM card is preferentially fallen after rise.If the second SIM card meets above-mentioned two condition, will ignore
The network redirection of first SIM card indicates, preferential to attempt the first SIM card being resident the serving cell to the second SIM card.Because right
For the first SIM card, other than known to the service quality of the second SIM card current service cell, the Service Quality of other cells
Amount be all it is unknown, fall back to other cells and be likely to that there is a situation where resident failure or access failures.Since the second SIM card
Its serving cell can be normally resided in, the first SIM card also can normally be resident the cell, it is thus possible to improve CSFB is for the first time
The success rate of cell selection, shortens and falls time delay after rise, improves user experience.
In practical application, double-terminal described in each embodiment can be implemented in a variety of manners in the application.For example, described
Double-terminal may include such as mobile phone, tablet computer, laptop, palm PC, personal digital assistant (Personal
Digital Assistant, PDA), portable media player (Portable Media Player, PMP), navigation device,
The mobile terminals such as wearable device, Intelligent bracelet, pedometer.
In addition, the embodiment of the present application also provides a kind of computer readable storage medium, the computer readable storage medium
On be stored with double-terminal circuit domain dropping program, when the double-terminal circuit domain dropping program is executed by processor realize on
The step of stating double-terminal circuit domain fallback method.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or
The various media that can store program code such as CD.
Optionally, in the present embodiment, processor executes above-mentioned implementation according to program code stored in storage medium
The method and step of example.
Optionally, the specific example in the present embodiment can be with reference to described in above-described embodiment and optional embodiment
Example, details are not described herein for the present embodiment.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware (such as processor) is completed, and described program can store in computer readable storage medium, as read-only memory,
Disk or CD etc..Optionally, one or more integrated circuits also can be used in all or part of the steps of above-described embodiment
It realizes.Correspondingly, each module/unit in above-described embodiment can take the form of hardware realization, such as pass through integrated circuit
It realizes its corresponding function, can also be realized in the form of software function module, such as be stored in and deposited by processor execution
Program/instruction in reservoir realizes its corresponding function.The application is not limited to the knot of the hardware and software of any particular form
It closes.
The advantages of basic principles and main features and the application of the application have been shown and described above.The application is not by upper
The limitation for stating embodiment, the above embodiments and description only describe the principles of the application, are not departing from the application
Under the premise of spirit and scope, the application be will also have various changes and improvements, these changes and improvements both fall within claimed
Within the scope of the application.
Claims (11)
1. a kind of method of double-terminal circuit domain dropping characterized by comprising
When circuit domain dropping occurs for the first SIM card, judge whether the second SIM card meets two following conditions:
Second SIM card currently normally resides in 2G or 3G cell and the current serving cell of the second SIM card is capable of providing electricity
Road exchanges CS business；
The public affairs of cell where second SIM card and first SIM card belong to identical operator or second SIM card
Land mobile network PLMN is registered second SIM card of the public land mobile network RPLMN or described institute of the first SIM card altogether
It is present in the reciprocity public land mobile network EPLMN or ownership public land of equal value of first SIM card in the PLMN of cell
In mobile network's EHPLMN list；
When second SIM card meets described two conditions simultaneously, first SIM card is fallen back into second SIM card
Current serving cell.
2. judging whether the second SIM card meets following two items the method according to claim 1, wherein described
After part, further includes:
When second SIM card can not meet described two conditions simultaneously, first SIM card is fallen back into network and is reset
To the frequency point of instruction.
3. method according to claim 1 or 2, which is characterized in that described to judge whether the second SIM card meets following two
Before condition, further includes:
Network redirection instruction is received in first SIM card.
4. judging whether the second SIM card meets following two items the method according to claim 1, wherein described
Part, comprising:
Judge whether second SIM card meets first condition, the first condition is that second SIM card is currently normally resident
In 2G or 3G cell and the current serving cell of the second SIM card is capable of providing CS business；
When judging that second SIM card meets in first condition, continue to judge whether second SIM card meets second condition
First, first of the second condition belongs to identical operator for second SIM card and first SIM card；
When judging that second SIM card meets first of the first condition and the second condition, then described is judged
Two SIM cards meet described two conditions simultaneously；
When judging that second SIM card is unsatisfactory for first of the second condition, then continue to judge that second SIM card is
The no Article 2 for meeting the second condition, the Article 2 of the second condition are one of following:
The PLMN of cell where second SIM card is the registered public land mobile network RPLMN of first SIM card；
The PLMN of cell is present in the reciprocity public land mobile network EPLMN of first SIM card where second SIM card
Or in the list of Home Public Land Mobile Network, HPLMN EHPLMN of equal value；
When judging that second SIM card meets the Article 2 of the first condition and second condition, then the 2nd SIM is judged
Block while meeting described two conditions.
5. a kind of device of double-terminal circuit domain dropping characterized by comprising
Judgment module, for judging whether the second SIM card meets following two items when circuit domain dropping occurs for the first SIM card
Part:
Second SIM card currently normally resides in 2G or 3G cell and the current serving cell of the second SIM card is capable of providing electricity
Road exchanges CS business；
The public affairs of cell where second SIM card and first SIM card belong to identical operator or second SIM card
Land mobile network PLMN is registered second SIM card of the public land mobile network RPLMN or described institute of the first SIM card altogether
It is present in the reciprocity public land mobile network EPLMN or ownership public land of equal value of first SIM card in the PLMN of cell
In mobile network's EHPLMN list；
Execution module, for when second SIM card meets described two conditions simultaneously, first SIM card to be fallen back to
The current serving cell of second SIM card.
6. device according to claim 5, which is characterized in that
The execution module is also used to when second SIM card can not meet described two conditions simultaneously, by described first
SIM card falls back to the frequency point of network redirection instruction.
7. device according to claim 5 or 6, which is characterized in that
Further include: receiving module, for receiving network redirection instruction in first SIM card.
8. a kind of terminal characterized by comprising
First SIM card；
Second SIM card；
It is stored with the memory of double-terminal circuit domain dropping program；
Processor, be configured to execute the double-terminal circuit domain dropping program to execute operations described below: electricity occurs for the first SIM card
When the domain dropping of road, judge whether the second SIM card meets two following conditions: second SIM card currently normally reside in 2G or
The 3G cell and current serving cell of the second SIM card is capable of providing circuit switching (CS) business；Second SIM card and described first
The public land mobile network PLMN of cell is the first SIM where SIM card belongs to identical operator or second SIM card
The PLMN of cell is present in described first where registered second SIM card of public land mobile network RPLMN or described of card
In the reciprocity public land mobile network EPLMN of SIM card or Home Public Land Mobile Network, HPLMN EHPLMN list of equal value；Described
When second SIM card meets described two conditions simultaneously, first SIM card is fallen back into the current service of second SIM card
Cell.
9. terminal according to claim 8, which is characterized in that the processor is configured to execute the double-terminal electricity
Road domain dropping program also executes operations described below:
When second SIM card can not meet described two conditions simultaneously, first SIM card is fallen back into network and is reset
To the frequency point of instruction.
10. terminal according to claim 8 or claim 9, which is characterized in that the processor is configured to execute the double card end
Terminal circuit domain dropping program also executes operations described below:
It is described judge whether the second SIM card meets two following conditions before, first SIM card receive network redirection refer to
Show.
11. a kind of computer readable storage medium, which is characterized in that be stored with double card end on the computer readable storage medium
Terminal circuit domain dropping program is realized when the double-terminal circuit domain dropping program is executed by processor as in Claims 1-4
The step of method of any one double-terminal circuit domain dropping.
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| CN201710564119.5A CN109257776B (en) | 2017-07-12 | 2017-07-12 | Method and device for circuit switched fallback of dual-card terminal and terminal |
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| CN201710564119.5A CN109257776B (en) | 2017-07-12 | 2017-07-12 | Method and device for circuit switched fallback of dual-card terminal and terminal |
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