CN103916922B - Communication terminal and its subscriber card switching method - Google Patents
Communication terminal and its subscriber card switching method Download PDFInfo
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- CN103916922B CN103916922B CN201210594445.8A CN201210594445A CN103916922B CN 103916922 B CN103916922 B CN 103916922B CN 201210594445 A CN201210594445 A CN 201210594445A CN 103916922 B CN103916922 B CN 103916922B
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Abstract
A kind of communication terminal and its subscriber card switching method, the communication terminal at least supports two subscriber cards, all subscriber cards at least correspond to two kinds of network modes, and at least having one among all subscriber cards supports the first subscriber card standby under two or more network mode；The communication terminal includes each baseband module corresponding with every kind of network mode, at least has one among all baseband modules and supports two or more than two subscriber cards the first baseband module standby under network mode corresponding to baseband module；The communication terminal also includes application module, the application module include being suitable to detect meet switching condition when output control signal control unit and the switch unit suitable for will be switched under the control of said control signal with the baseband module that the first subscriber card is communicated between the first baseband module and other baseband modules.The technical program can realize taking over seamlessly for subscriber card, look for net efficiency when improving switching, reduce to normal service impact.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of communication terminal and its subscriber card switching method.
Background technology
With the rapid development of mechanics of communication, interpersonal information interchange is also frequent, and a mobile phone can not expire
The demand of sufficient people, especially it is engaged in the people of the work such as sale, management, it is sometimes desirable to which two or three of even more more mobile phones could be reluctantly
Meet needs.And the so more mobile phones of carrying are very inconvenient, therefore, there is multi-card multi-standby mobile phone in the market.This mobile phone uses
Family only needs a mobile phone carrier, but can install multiple subscriber identification modules（SIM, Subscriber Identity Module）
Card or Global Subscriber identification module（USIM, Universal Subscriber Identity Module）Card, compared to carrying
Multiple mobile phones substantially facilitate a lot.
In Generation Mobile Telecommunication System（2G）In technology, global system for mobile communications（GSM, Globe System of
Mobile Communication）And CDMA（CDMA, Code Division Multiple Access）Communication system is
Wider GSM is applied in the world.In GSM or cdma communication network, if user needs to use in a mobile phone
Multiple numbers, then it can typically take following several schemes：
1. card singly treats system more than：Although two or more than two SIM/USIM cards can be connect simultaneously, actually currently may be used
With（Standby and progress business）Only one, by hardware circuit come realize multiple card switching, typically start when select, because
For the influence of protocol stack, the switching at runtime of multiple SIM card can not be realized typically in working condition, generally requires restarting hand
Machine system（Mainly start mobile phone protocol stack/upper layer software (applications) etc.）.
2. multi-card multi-standby system：The limitation that more cards in the past singly treat system is overcome, it can realize multiple SIM/USIM
It is standby while card, it is similar to be provided simultaneously with plurality of mobile phones, it is clear that practicality is greatly enhanced.
The multi-card multi-standby mobile phone of early stage, actually possess more set systems（Generally two sets）, often covering system is all included respectively
From radio-frequency module, baseband module and protocol stack, can complete the real of multiple numbers really using the mobile phones of more set systems
Simultaneously standby and call, can also be referred to as the more way systems of multi-card multi-standby.But which is present that cost is high, power consumption greatly with
And stand-by time it is short the shortcomings of, it is not enough convenient to use.The multi-card multi-standby mobile phone that later stage occurs can be described as multi-card multi-standby single-pass
System, for it compares more set systems above, a set of communication module is only used（Including radio-frequency module and baseband module）, because
Need to cooperate for upper-layer protocol stack, so the protocol stack of original more set independent operatings needs to integrate closely, practical operation
Although complicated, multi-card multi-standby effect can be realized.It is general using receiving beep-page message and wide in turn under protocol stack control
Broadcast message and realize that more cards are simultaneously standby.
At present, with 3G (Third Generation) Moblie（3G）The gradual popularization of technology, such as based on Time Division-Synchronous Code Division Multiple Access
（TD-SCDMA, Time Division-Synchronous Code Division Multiple Access）Or broadband code
Divide multiple access（WCDMA, Wideband Code Division Multiple Access）The 3G business of technology is carried out in the whole nation,
Increasing people begins to use 3G mobile, but because the crowd after all using 2G mobile phones still occupies the majority, therefore in 2G to 3G
Transition stage, with a mobile phone simultaneously realize that 2G's and 3G is standby, can seem quite convenient.
Mobile communications network various modes at present（Standard）And deposit, such as GSM, CDMA, WCDMA, every country is to net
Network pattern has different selections, supports GSM and WCDMA networks as some are national, but some countries only support cdma networks, have
The network of a little various patterns of country has.For this reality, some manufacturer terminals developed can support simultaneously it is more
The communication terminal of kind of network mode, the needs of obtaining communication service to meet user under multiple network pattern, such as：CDMA+
GSM double cards double-mode communication terminal can just support two subscriber cards respectively under cdma network and GSM network under carry out it is standby simultaneously
Obtain communication service.Although existing CDMA+GSM double cards double-mode communication terminal can support a subscriber card to be treated under CDMA
Machine, another subscriber card is standby under GSM, but at least also has the following disadvantages：First, even if insertion can support CDMA simultaneously
With the subscriber card of GSM network, when in the region of only CDMA or GSM coverings, there is a subscriber card can not just provide communication
Service, has influence on the use of user；Second, the baseband module that subscriber card of service can not be provided and be in communication with
Typically it still can periodically carry out looking for net under CDMA or GSM, it is standby to be carried out after suitable network is found, but so
Not only look for net less efficient, and add the power consumption of communication terminal；3rd, in CDMA the or GSM nets that subscriber card is currently resident
When the signal quality of network is poor, it is difficult to ensure that subscriber card provides the quality of communication service.
To sum up, existing more card multi-mode communication terminals can not be resident in the standby network loss covering of subscriber card or normally
When, it is difficult to the standby of the subscriber card is realized in time, and is reduced it and looked for the power consumption increase brought in network process；In current resident network
Signal quality be deteriorated when, it is difficult in time ensure subscriber card provide communication service quality.
The content of the invention
The problem to be solved in the present invention is that existing more card multi-mode communication terminals cover in the standby network loss of subscriber card
When covering or can not normally be resident, it is difficult to realize the standby of the subscriber card in time, and reduce power consumption；In the signal of current resident network
During degradation, it is difficult to improve the quality that subscriber card provides communication service in time.
To solve the above problems, technical solution of the present invention provides a kind of communication terminal, the communication terminal at least supports two
Subscriber card is opened, all subscriber cards at least correspond to two kinds of network modes, and at least having one among all subscriber cards supports at two kinds
Or standby the first subscriber card under two or more network modes；
The communication terminal includes each baseband module corresponding with every kind of network mode, among all baseband modules at least
Two or more than two subscriber cards the first baseband module standby under network mode corresponding to baseband module are supported in the presence of one；
The communication terminal also includes application module, the application module include being suitable to detect meet switching condition when
The control unit of output control signal and suitable for will be led under the control of said control signal with first subscriber card
The switch unit that the baseband module of letter switches between first baseband module and other baseband modules.
Optionally, the communication terminal also includes：It can be attached to the more of few two subscriber cards and first baseband module
Card interface, more card interfaces support the hot plug of first subscriber card.
Optionally, each baseband module includes being suitable to support connected subscriber card in net corresponding to the baseband module
Realize standby protocol stack under network pattern, corresponding protocol stack can support that at least two subscriber cards exist in first baseband module
Carried out under network mode corresponding to the baseband module standby.
Optionally, the application module also includes the memory cell for being suitable to storage network information table, the network information table
Record have every kind of network mode network institute covering area information and each network corresponding to network No..
Optionally, two or more baseband modules are integrated in same baseband chip.
Optionally, network mode corresponding to all subscriber cards include GSM, CDMA, CDMA2000, CDMA20001X,
At least two in CDMA20001XEVDO, WCDMA, TD-SCDMA, LTE.
To solve the above problems, technical solution of the present invention also provides a kind of subscriber card switching method of above-mentioned communication terminal,
Including：
When meeting the first switching condition, the network under first network pattern is carried out to standby first subscriber card
Switch to and communicated with first baseband module, to realize first subscriber card corresponding to first baseband module
Network under network mode carries out standby；
When meeting the second switching condition, by first subscriber card switch back into the first network pattern corresponding to
Baseband module is communicated, to realize that it is standby that network of first subscriber card under the first network pattern is carried out.
Optionally, first switching condition includes：Network of first subscriber card under the first network pattern
Lose covering or can not normally be resident；Second switching condition includes：It is determined that the first network in the presence of covering can be found
Network under pattern.
Optionally, first switching condition also includes：The other users card that first baseband module is supported has been looked for
Network under network mode corresponding to first baseband module, and the network can be normally resident.
Optionally, the subscriber card switching method of the communication terminal also includes：When being unsatisfactory for first switching condition,
And the other users card that first baseband module is supported is not found under network mode corresponding to first baseband module
Network, then first subscriber card periodically look for net in the first network pattern.
Optionally, the network that the determination can be found under the first network pattern in the presence of covering includes：Based on described
The subscriber card that first baseband module is supported is resident the information of network, retrieves default network information table, the network information table
Record have network institute covering area under every kind of network mode information and each network corresponding to network No.；If pass through the network
Information in information table judges that current locale there may be the network under the first network pattern, it is determined that can find to exist and cover
Network under the first network pattern of lid.
Optionally, the network information table looks for net by network server end online updating or according to the communication terminal
As a result it is updated.
Optionally, the subscriber card switching method of the communication terminal also includes：If pass through the letter in the network information table
Breath judges that current locale can not possibly have the network under the first network pattern, then is switched in first subscriber card described
After first baseband module, the baseband module corresponding to the first network pattern is closed.
Optionally, second switching condition also includes：Find under the first network pattern that can be normally resident
Network；It is described when meeting the second switching condition, by first subscriber card switch back into the first network pattern corresponding to
Baseband module communicated, to realize that network of first subscriber card under the first network pattern carries out standby bag
Include：If it is determined that the network under the first network pattern in the presence of covering can be found, then as corresponding to the first network pattern
Baseband module periodically carry out looking for net under the first network pattern；When finding the first network mould that can be resident
After network under formula, first subscriber card is switched back into and led to the baseband module corresponding to the first network pattern
Letter, and carry out on that network standby.
Optionally, it is described when meeting the second switching condition, first subscriber card is switched back into and the first network
Baseband module corresponding to pattern is communicated, to realize that network of first subscriber card under the first network pattern enters
Row it is standby including：If it is determined that the network under the first network pattern in the presence of covering can be found, then by first subscriber card
Switch to and communicated with the baseband module corresponding to the first network pattern, by first subscriber card in first net
Network pattern periodically looks for net, until the network under the first network pattern that can be resident is found, and on that network
Carry out standby.
Optionally, first switching condition includes：Network of first subscriber card under the first network pattern
The signal measurements obtained are less than predetermined threshold value；Second switching condition includes：Signal measurements are found to be more than or equal to
Network under the first network pattern of the predetermined threshold value.
Compared with prior art, technical solution of the present invention at least has advantages below：
At least one support two or more than two subscriber cards in baseband module by being extended in more card multi-mode communication terminals
The first standby baseband module under corresponding network mode, and coordinate at least one to support in two or more network mode
Under standby the first subscriber card, so as to realize with the baseband module that first subscriber card is communicated in first base band
Taking over seamlessly between module and other baseband modules.
When the standby network loss of subscriber card is covered or can not be normally resident, or the signal in current resident network
During degradation, treated in time network of the subscriber card under other network modes by rational switchover policy
Machine, what reduction was likely encountered when switching looks for net expense and the influence to normal communications traffic, can also improve the subscriber card in time
The quality of communication service is provided.
Judge whether current locale there may be under the first network pattern by the information in the network information table
Network, and look for without card the strategy of net, can dynamically open and close the baseband module currently without the network coverage, so as to
Net efficiency is looked in raising, is reduced subscriber card switching frequency, is provided the user with normal communication service as far as possible, improve Consumer's Experience,
Also reduce power consumption simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation for the communication terminal that embodiment of the present invention provides；
Fig. 2 be the subscriber card switching method embodiment one of communication terminal provided by the invention SIM card 1 and SIM card 2 it is normal
Standby schematic diagram；
Fig. 3 is that the SIM card 1 of the subscriber card switching method embodiment one of communication terminal provided by the invention is switched under GSM
Standby schematic diagram；
Fig. 4 is that the SIM card 1 of the subscriber card switching method embodiment one of communication terminal provided by the invention is switched back under CDMA
Standby schematic diagram；
Fig. 5 is that the SIM card 1 of the subscriber card switching method embodiment one of communication terminal provided by the invention is switched under GSM
Standby schematic flow sheet；
Fig. 6 is that the SIM card 1 of the subscriber card switching method embodiment one of communication terminal provided by the invention is switched back under CDMA
Standby schematic flow sheet；
Fig. 7 is that the SIM card 2 of the subscriber card switching method embodiment two of communication terminal provided by the invention is switched under CDMA
Standby schematic diagram.
Embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.Detail is elaborated in the following description in order to fully understand the present invention.But
It is that the present invention can be different from other manner described here to implement with a variety of, those skilled in the art can be without prejudice to originally
Similar popularization is done in the case of invention intension.Therefore the present invention is not limited by following public embodiment.
As stated in the Background Art, existing more card multi-mode communication terminals are in the standby network loss covering of subscriber card or nothing
When method is normally resident, it is difficult to realize the standby of the subscriber card in time, and reduce it and look for the power consumption increase brought in network process；Working as
When the signal quality of preceding resident network is deteriorated, it is difficult to ensure that subscriber card provides the quality of communication service in time.Inventor's consideration, can
To incite somebody to action the current resident network condition mutation of institute（Such as lose covering, can not normally be resident or signal quality variation）Subscriber card cut
Change to other and be adapted to resident network（The pattern of the network is different from the pattern of be resident network before this）Upper progress is standby, treats this
The situation of preceding be resident network is recovered（Such as find and improve in the presence of the network or signal quality that covers and can normally be resident）When, then
The subscriber card is switched back into former network, so realized with the baseband module that the subscriber card is communicated in the first base band mould
Taking over seamlessly between block and other baseband modules, the i.e. subscriber card correspond to the switching between the protocol stack of baseband module（Can letter
The referred to as switching of the subscriber card）, then rely on rational switchover policy just can make the subscriber card in time in other network modes
Under network carry out it is standby, reduce be likely encountered during switching look for net expense and the influence to normal communications traffic, net is looked in reduction
During power consumption, can also improve in time the subscriber card provide communication service quality.
Therefore, embodiment of the present invention provides a kind of more card multi-mode communication terminals, i.e., described communication terminal is at least supported
Two subscriber cards, all subscriber cards at least correspond to two kinds of network modes.Fig. 1 is the communication terminal that embodiment of the present invention provides
Structural representation.Supported as shown in figure 1, at least having one among all subscriber cards under two or more network mode
The first standby subscriber card 10；The communication terminal includes each baseband module corresponding with every kind of network mode, all base band
Among module at least exist one support two or more than two subscriber cards it is standby under network mode corresponding to baseband module
First baseband module 20；The communication terminal also includes application module 30, and the application module 30 includes being suitable to detecting completely
The control unit 301 of output control signal and suitable under the control of said control signal will be with described during sufficient switching condition
What the baseband module that one subscriber card 10 is communicated switched between first baseband module 20 and other baseband modules
Switch unit 302.
It should be noted that subscriber card is general and is not belonging to the part of the communication terminal, but the communication terminal
Implementation need the cooperation of subscriber card to realize, therefore figure 1 illustrates subscriber card corresponding with baseband module.In Fig. 1
First subscriber card is only indicated, other subscriber cards not indicated are non-first subscriber card, and one is only indicated in Fig. 1
First baseband module, other baseband modules not indicated are non-first baseband module.When actually implementing, the first subscriber card
Or the quantity of other users card is not limited to 1, the quantity of the first baseband module or other baseband modules is also limited to 1
It is individual.
When it is implemented, the communication terminal also includes can be attached to few two subscriber cards and first baseband module 20
More card interfaces 40, more card interfaces 40 support the hot plug of first subscriber card 10.When meeting switching condition, in institute
State described in application module 30 under the control of control unit 301, by disconnected after power down the first subscriber card 10 with it is current corresponding
Connection between baseband module, and re-powered after being attached with another baseband module, so as to complete the first subscriber card 10
Switching.Because more card interfaces 40 support the hot plug of the first subscriber card 10, then during power down or upper electricity, first uses
During family card 10 is connected or disconnected from by more baseband modules 20 of card interface 40 and first, do not interfere with by blocking more
The normal work for the other users card that interface 40 is connected with the first baseband module 20.
Each baseband module includes being suitable to support connected subscriber card in network mode corresponding to the baseband module
It is lower to realize standby protocol stack（PS, Protocol Stack）, corresponding protocol stack can be supported in first baseband module 20
At least two subscriber cards are carried out standby under network mode corresponding to the baseband module.Subscriber card passes through connected base band mould
The control of protocol stack in block, realize the standby of network of the subscriber card under its corresponding network mode.
When it is implemented, the application module 30 also includes the memory cell for being suitable to storage network information table（Do not show in Fig. 1
Go out）, network information table record have the network institute covering area of every kind of network mode information and each network corresponding to net
Number.The memory cell stores the effect of the network information table by the specific of the subscriber card switching method of communication terminal below
Further illustrated in embodiment.
When actually implementing, the communication terminal, which is specifically as follows mobile phone or other, has the equipment of communication function（Such as
Tablet personal computer etc.）.The subscriber card can be SIM card, or usim card.Network mode corresponding to all subscriber cards can be with
Including GSM, CDMA, CDMA2000, CDMA20001X, CDMA20001XEVDO, WCDMA, TD-SCDMA, Long Term Evolution（LTE,
Long Term Evolution）In at least two.
In addition, two or more baseband modules can also be integrated in same baseband chip when actually implementing
In, such as bimodulus baseband chip, three mould baseband chips etc..
In embodiment of the present invention, by extending at least one support two or more than two in more card multi-mode communication terminals
Subscriber card the first baseband module standby under network mode corresponding to baseband module, and coordinate at least one support at two kinds or
The first standby subscriber card under two or more network modes, so as to realize the base band mould to be communicated with first subscriber card
Block taking over seamlessly between first baseband module and other baseband modules.
It will be understood by those skilled in the art that realizing all or part of more card multi-mode communication terminals in above-described embodiment is
By program the hardware of correlation can be instructed to complete, described program can be stored in computer-readable recording medium,
The storage medium can be ROM, RAM, magnetic disc, CD etc..
Based on above-mentioned communication terminal, embodiment of the present invention also provides a kind of subscriber card switching method of communication terminal, institute
State each several part composition of communication terminal and its act on as it was previously stated, the subscriber card switching method includes：
When meeting the first switching condition, the network under first network pattern is carried out to standby first subscriber card
Switch to and communicated with first baseband module, to realize first subscriber card corresponding to first baseband module
Network under network mode carries out standby；
When meeting the second switching condition, by first subscriber card switch back into the first network pattern corresponding to
Baseband module is communicated, to realize that it is standby that network of first subscriber card under the first network pattern is carried out.
In embodiment of the present invention, the first network pattern is the default standby pattern of first subscriber card, that is, is existed
After the communication terminal start, the first subscriber card can look for net under first network pattern, be carried out in the network of the network mode
It is standby, when meeting first switching condition, then by switch with realize other network modes network carry out it is standby.
Disconnected and the base corresponding to the first network pattern in addition, first switching condition is first subscriber card
Connected between band module, and switch to the trigger condition for connecting first baseband module；Second switching condition is described
First subscriber card disconnects to be connected between first baseband module, switches back into the base connected corresponding to the first network pattern
Trigger condition with module；First switching condition and the second switching condition carry out true all in accordance with the actual conditions of current network
Fixed, i.e., described first switching condition and the second switching condition are that subscriber card is cut according to the actual conditions of current network
The trigger condition changed.When actually implementing, the switching of first subscriber card can pass through the logical of embodiment of the present invention offer
The control unit and switch unit that application module includes described in letter terminal are realized.
The subscriber card switching method of above-mentioned communication terminal is elaborated with specific embodiment below.
Embodiment one
In the present embodiment, the subscriber card switching method is entered so that the communication terminal is specially double card dual-mode handset as an example
Row explanation, wherein, two kinds of network modes are respectively CDMA and GSM, and two subscriber cards are respectively SIM card 1 and SIM card 2, in double card
In the case of normal Standby, SIM card 1 is standby in cdma network progress by its corresponding baseband module, and CDMA is that SIM card 1 is carried out
Standby first network pattern, SIM card 2 are carried out standby by its corresponding baseband module in GSM network.Assuming that SIM card 1 is the
One subscriber card, SIM card 2 are other users card, i.e. the first subscriber card of right and wrong of SIM card 2, baseband module corresponding to GSM（Referred to as
GSM baseband modules）For the first baseband module, baseband module corresponding to CDMA（Referred to as CDMA baseband modules）For other base band moulds
Block, i.e. CDMA baseband modules are non-first baseband module.
The normal Standby of SIM card 1 and SIM card 2 is as shown in Fig. 2 because subscriber card passes through in connected baseband module
Protocol stack control, realize the standby of network of the subscriber card under its corresponding network mode, therefore in fig. 2 with CDMA
Protocol stack represents CDMA baseband modules, with gsm protocol stack representation GSM baseband modules, under the control of application module, passes through CDMA
Protocol stack makes SIM card 1 standby in cdma network, makes SIM card 2 standby in GSM network by gsm protocol stack.
In the present embodiment, first switching condition includes：First subscriber card is under the first network pattern
Network loss is covered or can not be normally resident；Second switching condition includes：It is determined that described first in the presence of covering can be found
Network under network mode.Specifically, the first switching condition includes：SIM card 1 carries out standby cdma network and loses covering or nothing
Method is normally resident, described to be normally resident and be properly termed as limited resident, such as resides in disabling public land mobile network
（FPLMN, Forbidden Public Land Mobile Network）On；Second switching condition includes：Deposited it is determined that can find
In the cdma network of covering.
It can be seen from the general principle that the frame structure of above-mentioned CDMA+GSM double cards double-mode communication terminal and SIM card switch：
Lose covering when SIM card 1 carries out standby cdma network or can not normally be resident, then SIM card 1 is switched under GSM network and treated
Machine, SIM card 1 can be specifically connected with GSM baseband modules by way of hot plug；When it is determined that can find in the presence of covering
Cdma network, and switch back into the CDMA nets by periodically looking for net to find the cdma network that can be normally resident, then by SIM card 1
It is standby under network.
SIM card 1 is switched to standby under GSM referring to Fig. 3, dotted line represents that SIM card 1 receives gsm protocol after handover in Fig. 3
The control of stack, now SIM card 1 is standby under GSM network, and gsm protocol stack supports double-card dual-standby, therefore SIM card 2 still can be with
Standby in GSM network under the control of gsm protocol stack, i.e., SIM card 2 is after standby under SIM card 1 is switched to GSM, its communication industry
It is engaged in and unaffected.
SIM card 1 switches back into standby under CDMA referring to Fig. 4, in order to embody SIM card 1 in gsm protocol stack and CDMA protocol stacks
Switching, in Fig. 4 dotted line represent SIM card 1 switch back into it is standby under CDMA before, it is standby in GSM under the control by gsm protocol stack
Network, and heavy line represents that SIM card 1 switches back into standby under CDMA in Fig. 4, now SIM card 1 receives the control of CDMA protocol stacks.
During standby under SIM card 1 switches back into CDMA, its communication service is still unaffected SIM card 2.
However, when actually implementing, specifically how to carry out SIM card switching and also need to a perfect switchover policy, most
The problem of main, includes：
（1）Whether SIM card 1 is necessary standby under GSM network；
（2）After SIM card 1 is switched to standby under GSM network, how to carry out the net of looking under CDMA, and how to judge be
It is no to switch back to cdma network.
The present embodiment proposes the SIM card switching method between CDMA and GSM, can solve the problem that above-mentioned two problems.
For problem（1）Resolving ideas：
Inventor considers, when SIM card 1 can not carry out standby in cdma network, if be necessary to treat under GSM network
Machine, this needs considers whether the GSM network that can be normally resident be present, if it does not exist, then SIM card 1 is switched under GSM network
It is standby also to seem meaningless, and still need and switch back into cdma network, it also add handover overhead.Only when judging to deposit
In the GSM network that can be normally resident, then SIM card 1 switched to standby under GSM network, handover overhead and right could be reduced
The influence of normal communications traffic.
Therefore, in the present embodiment, first switching condition also includes：First baseband module supported other
Subscriber card has found the network under network mode corresponding to first baseband module, and the network can be normally resident.Specifically
Ground, i.e., described first switching condition also include：SIM card 2 has found the GSM network that can be normally resident.
In addition, in the present embodiment, when being unsatisfactory for first switching condition, and first baseband module is supported
Other users card does not find the network under network mode corresponding to first baseband module, then first subscriber card is described
First network pattern periodically looks for net.Specifically, when SIM card 1 carries out standby cdma network loss covering or can not be just
It is resident to stay, and SIM card 2 does not find the GSM network that can be normally resident, then SIM card 1 looks for net in CDMA periodicals.
According to above-mentioned resolving ideas, for problem（1）Solution method：
Start acquiescence SIM card 1 looks for net under CDMA, and SIM card 2 looks for net under GSM.When SIM card 1 can not find net under CDMA
Or when can not obtain normal communication service, judge whether SIM card 2 finds GSM network.If SIM card 2 finds GSM network, that
Just SIM card 1 is switched under the GSM network carry out it is standby, if SIM card 2 also can not find GSM network, then SIM card 1 still exists
It is standby under CDMA, and net periodically is looked for, until finding the cdma network that can be resident or being switched to when SIM card 2 finds GSM network
Carried out under the GSM network standby.
Fig. 5 shows that SIM card 1 is switched to idiographic flow standby under GSM, including：
Step S501, SIM card 1 look for net under cdma network pattern；
Step S502, judges whether SIM card 1 can normally be resident cdma network, is then to perform step S503, otherwise performs step
Rapid S504；
Step S503, SIM card 1 are standby under cdma network；
Step S504, judges whether SIM card 2 finds GSM network, is then to perform step S505, otherwise jumps to step
S501；
Step S505, SIM card 1 are switched to standby under GSM network.After step S505, whole flow process terminates.
For problem（2）Resolving ideas：
After SIM card 1 is switched to GSM network, in good time switchback cdma network is also wanted, this just needs significantly more efficient plan
Slightly.Inventor considers, before no determination cdma network can be resident, if SIM card 1 directly is switched back into cdma network pattern
Under look for net, may or can not normally be resident cdma network, which not only adds handover overhead, it is even more important that is cutting
SIM card 1 can not obtain normal communication service during changing, and if still standby under GSM network, it can also at least get normal
Communication service.Therefore, before SIM card 1 is switched back into cdma network, it is necessary first to determine whether current locale there may be CDMA
The network coverage, then find the cdma network that can be normally resident.
For problem（2）, two specific solution methods are proposed in the present embodiment：
a）, using prior information come judge current locale whether there may be cdma network covering；
b）, realize CDMA baseband modules look for net without card.
Just it can efficiently and accurately judge whether SIM card 1 allows hand over back cdma network by both the above method.This two
Individual method is described in detail below：
Method a）It can include：The subscriber card supported based on the first baseband module is resident the information of network, and retrieval is default
Network information table, network information table record has the information of the network institute covering area under every kind of network mode and each net
Network No. corresponding to network；If judge that current locale there may be the first network pattern by the information in the network information table
Under network, it is determined that can find in the presence of covering the first network pattern under network.The network information table can lead to
Cross network server end online updating or look for net result to be updated according to the communication terminal.
In addition, in the present embodiment, if judging that current locale can not possibly have institute by the information in the network information table
The network under first network pattern is stated, then after first subscriber card switches to first baseband module, closes described the
Baseband module corresponding to one network mode.
Specifically, method a）Described in prior information refer to information recorded in the network information table, utilize elder generation
Test information and can interpolate that whether current locale there may be cdma network.In the present embodiment, CDMA+GSM double cards dual mode communication is whole
The application module at end（AP modules）A cdma network information table can be safeguarded in advance, recorded in table and cdma network covering be present
Country（Distinguished with national code）With corresponding network No..In the specific implementation, the resident GSM network reported according to SIM card 2, can
With the country for judging to be presently in by national code, cdma network information table is then retrieved.If there is CDMA in current country
Network, that is, determine that the cdma network in the presence of covering can be found, then can carries out looking for net on CDMA baseband modules, otherwise
The standby rear closing CDMA baseband modules of GSM network can be switched in SIM card 1, so both improve and looked for net efficiency, and reduced work(again
Consumption.
This cdma network information table can also can both be looked for by network server end online updating according to terminal is actual
Net result is updated.Equipment supplier is responsible for collecting the change of cdma network information, and updates to the webserver, with
Just communication terminal can obtain the switchover policy that newest cdma network information table is used for SIM card in time.
It should be noted that cdma network information table is only needed to can determine whether current locale may deposit in the present embodiment
In cdma network, in other embodiments, stored record there can also be network institute under every kind of network mode in application module
The network information table of network No. corresponding to the information of covering area and each network, the network information table may be considered each network mould
The synthesis of network information table corresponding to formula, it can more be applied to multiple first subscriber cards and the first baseband module be present.
Method b）Be related to CDMA baseband modules looks for net without card.As it was previously stated, if current country there may be CDMA nets
Network, then application module still will control CDMA baseband modules periodically to carry out looking for net under CDMA.But this look for net can
Not need the participation of SIM card 1, directly carry out looking for net under without card-like state, after the cdma network that SIM card 1 can be resident is found,
SIM1 is switched under CDMA again carry out it is standby.It can so be looked in CDMA in network process, ensure SIM1 normal Standbies under GSM,
Various communication services can be normally carried out.
In the present embodiment, pass through method a）Only determine that the cdma network in the presence of covering can be found, currently in other words
Area there may be the covering of cdma network, but also need to etc. to find the cdma network that can be normally resident, could be by SIM card 1
Switch back under cdma network carry out it is standby.
Therefore, in the present embodiment, second switching condition also includes：Find the first network that can be normally resident
Network under pattern；It is described when meeting the second switching condition, first subscriber card is switched back into and the first network mould
Baseband module corresponding to formula is communicated, to realize that network of first subscriber card under the first network pattern is carried out
It is standby including：If the network under the first network pattern in the presence of covering is found, as corresponding to the first network pattern
Baseband module periodically carry out looking for net under the first network pattern；When finding the first network mould that can be resident
After network under formula, first subscriber card is switched back into and led to the baseband module corresponding to the first network pattern
Letter, and carry out on that network standby.
In other embodiments, the second switching condition can also only include：It is determined that described first in the presence of covering can be found
Network under network mode.Net now is looked for without card without other baseband modules, but is met in second switching condition
When, first subscriber card is switched back into and communicated with the baseband module corresponding to the first network pattern, to realize
State network of first subscriber card under the first network pattern carry out it is standby including：If find first net in the presence of covering
Network under network pattern, then first subscriber card is switched to and carried out with the baseband module corresponding to the first network pattern
Communication, periodically look for net in the first network pattern by first subscriber card, until find can be resident it is described
Network under first network pattern, and carry out on that network standby.
To sum up, comprising a）And b）The SIM card 1 of two methods switches back into idiographic flow such as Fig. 6 of cdma network from GSM network
It is shown, including：
Step S601, SIM card 1 and SIM card 2 are standby under GSM network, are obtained and are presently in by retrieval network information table
National cdma network coverage condition；
According to the national cdma network coverage condition that is presently in of acquisition, step S602 is performed, judges whether CDMA
Network, it is then to perform step S603, otherwise performs step S604；
Step S603, CDMA baseband module carry out looking for net without card；
Step S604, SIM card 1 is still standby under GSM network, closes CDMA baseband modules；
After step S603, S605 is performed, judges whether that cdma network can be resident by finding SIM card 1, is to perform step
S607, otherwise perform step S606；
Step S606, SIM card 1 is still standby under GSM network, and CDMA baseband modules periodically look for net；After step S606,
Step S605 is jumped to, i.e., when step S605 judged result is "No", step S605 and step S606 are that circulation performs
Process, until step S605 judged result is "Yes", that is, cdma network can be resident by finding SIM card 1；
Step S607, SIM card 1 are switched to standby under cdma network.After step S607, whole flow process terminates.
In the present embodiment, judge whether current region there may be cdma network according to GSM network, dynamic can be realized
Be turned on and off CDMA baseband modules looks for net, and net efficiency is looked for so as to improve, and reduces subscriber card switching frequency, as far as possible to use
Family provides normal communication service, improves Consumer's Experience, while also reduce power consumption.
It should be noted that the present embodiment is the subscriber card for implementing the communication terminal by taking double card double-mode communication terminal as an example
Switching method, and wherein only exist a card（SIM card 1）For the first subscriber card, a baseband module is only existed（GSM base band
Module）For the first baseband module.In other embodiments, SIM card 1 and SIM card 2 can be the first subscriber card, GSM base band moulds
Block and CDMA baseband modules can also be the first baseband module, and now, SIM card 1 or SIM card 2 can be realized in GSM base band
Taken over seamlessly between module and CDMA baseband modules.In addition, when more card multi-mode communication terminals have more than two first use
Family card, and when the first baseband module of two or more be present, the associated description that still may be referred in the present embodiment is embodied in it
Carry out, not reinflated description herein.
Embodiment two
In the present embodiment, still to the subscriber card switching side so that the communication terminal is specially double card dual-mode handset as an example
Method illustrates, wherein, two kinds of network modes are respectively CDMA and GSM, and two subscriber cards are respectively SIM card 1 and SIM card 2,
In the case of double card normal Standby, SIM card 1 is standby in cdma network progress by its corresponding baseband module, and CDMA is SIM card 1
Standby first network pattern is carried out, SIM card 2 carries out standby by its corresponding baseband module in GSM network.Assuming that SIM card 1
It is the first subscriber card with SIM card 2, baseband module corresponding to GSM（Referred to as GSM baseband modules）With CDMA corresponding to base band mould
Block（Referred to as CDMA baseband modules）It is the first baseband module.
The present embodiment and the difference of embodiment one also reside in, and switching condition is different.In the present embodiment, described first
Switching condition includes：The signal measurements that network of first subscriber card under the first network pattern is obtained are less than pre-
If threshold value；Second switching condition includes：Find first net that signal measurements are more than or equal to the predetermined threshold value
Network under network pattern.The predetermined threshold value is to reflect that communication terminal maintains the critical of normal communication service desired signal quality
Value, can be determined according to actual conditions, when signal measurements are less than the predetermined threshold value, show current signal quality hardly possible
To maintain proper communication, now need to carry out the switching of first subscriber card, if detect afterwards signal measurements be more than or
Equal to the predetermined threshold value, then illustrate that the signal quality of the network under first network pattern improves.
In the present embodiment, double card double-mode communication terminal carrying CDMA and gsm protocol stack, double card is set to reside in simultaneously
On GSM and cdma network.When application module, which measures cdma network signal, to be deteriorated, the SIM card 1 that can be controlled is transferred to
Gsm protocol stack takes over, and GSM double cards protocol stack can be by the preferable GSM network of the resident upper signal quality of the SIM card 1 newly taken over；
Similarly, when GSM network signal is deteriorated, CDMA double cards protocol stack also can successfully take over the SIM card originally controlled by gsm protocol stack
2.When application module, which measures CDMA signal qualitys, to improve, the SIM card 1 that gsm protocol stack is taken over can be returned to CDMA associations again
View stack is controlled；Similarly, when CDMA protocol stacks control double card, and GSM network signal improves, CDMA protocol stacks can be taken over
SIM card 2 give back gsm protocol stack control.
Under normal circumstances, two SIM cards can normally reside in corresponding network, may be referred to Fig. 2.Specific implementation
When, gsm protocol stack and CDMA protocol stacks are all double card protocol stacks, and when being initially powered up, SIM card 1 and SIM card 2 are individually placed to each
Position, pass through corresponding AT orders（Attention Commands）Start SIM card and protocol stack, two SIM cards can
Each resident corresponding network.
When cdma network signal is deteriorated, SIM card 1 is disconnected CDMA protocol stacks by application module by issuing AT orders, and
It is connected to gsm protocol stack.Fig. 3 is may be referred to, SIM card 1 is connected to gsm protocol stack, and application module issues AT in respective channel
Order starts SIM card and protocol stack.
If when GSM network signal is first deteriorated, then SIM card 2 is switched into CDMA protocol stacks, such as Fig. 7 in the same way
It is shown.
When two SIM cards work in gsm protocol stack, and when CDMA signals become preferable, application module may be selected will
SIM card 1 switches back into CDMA protocol stacks, now first disconnects SIM card 1 from gsm protocol stack, is connected to CDMA protocol stacks, can pass through
The hot-swappable control of SIM card, now becomes structure as shown in Figure 2.If now GSM signal qualitys are deteriorated, can continue SIM card
2 are also switched to CDMA protocol stacks, as shown in Figure 7.
If when CDMA and very poor GSM network signal quality, it can be handled according to normal signal difference.
When two SIM cards are all in CDMA protocol stacks, and when GSM network signal is preferable, same handover operation executed as described above.
When a SIM card is from during CDMA protocol stacks transfer gsm protocol stack to, the original SIM card industry of gsm protocol stack
Business is not affected；When gsm protocol stack has 2 SIM cards to run and wherein one card to return the adapter of CDMA protocol stacks,
The business of another SIM card of gsm protocol stack is equally unaffected.
To sum up, the subscriber card switching method of the communication terminal provided by the present embodiment, can be in current resident network
When signal quality is deteriorated, enter in time network of the subscriber card under other network modes by rational switchover policy
Row it is standby, reduce be likely encountered look for net expense and the influence to normal communications traffic, can also improve the subscriber card in time and carry
For the quality of communication service.
The reality of the subscriber card switching method of the subscriber card switching method reference implementation example one of communication terminal described in the present embodiment
Apply, here is omitted.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to the present invention
Any simple modifications, equivalents, and modifications made to above example of technical spirit, belong to technical solution of the present invention
Protection domain.
Claims (13)
1. a kind of communication terminal, the communication terminal at least supports two subscriber cards, and all subscriber cards at least correspond to two kinds of networks
Pattern, it is characterised in that it is standby under two or more network mode at least to there is a support among all subscriber cards
The first subscriber card,
The communication terminal includes each baseband module corresponding with every kind of network mode, at least exists among all baseband modules
One is supported two or more than two subscriber cards the first baseband module standby under network mode corresponding to baseband module；
The communication terminal also includes application module, and the application module includes being suitable to export when detecting and meeting switching condition
The control unit of control signal and suitable for will be communicated under the control of said control signal with first subscriber card
The switch unit that baseband module switches between first baseband module and other baseband modules；
Wherein, when meeting the first switching condition, the network under first network pattern is carried out to standby first user
Card switches to be communicated with first baseband module, to realize that first subscriber card is right in first baseband module institute
The network under network mode is answered to carry out standby；
When meeting the second switching condition, first subscriber card is switched back into the first network pattern corresponding to base band
Module is communicated, to realize that it is standby that network of first subscriber card under the first network pattern is carried out；
Wherein, first switching condition includes：Network loss of first subscriber card under the first network pattern is covered
Lid can not be normally resident；Second switching condition includes：It is determined that it can find under the first network pattern in the presence of covering
Network；
The network that the determination can be found under the first network pattern in the presence of covering includes：
The subscriber card supported based on first baseband module is resident the information of network, retrieves default network information table, institute
State network information table record have network institute covering area under every kind of network mode information and each network corresponding to network No.；
If judging that current locale there may be the network under the first network pattern by the information in the network information table,
Then determine that the network under the first network pattern in the presence of covering can be found；
If judge that current locale can not possibly have the net under the first network pattern by the information in the network information table
Network, then after first subscriber card switches to first baseband module, close the base corresponding to the first network pattern
Band module.
2. communication terminal according to claim 1, it is characterised in that also include can be attached to few two subscriber cards with it is described
More card interfaces of first baseband module, more card interfaces support the hot plug of first subscriber card.
3. communication terminal according to claim 1, it is characterised in that each baseband module includes being suitable to support to connect with it
The subscriber card connect realizes standby protocol stack under network mode corresponding to the baseband module, corresponding in first baseband module
Protocol stack can support that at least two subscriber cards are carried out standby under network mode corresponding to the baseband module.
4. communication terminal according to claim 1, it is characterised in that the application module also includes being suitable to storage network letter
The memory cell of table is ceased, the network information table record has the information of the network institute covering area of every kind of network mode and each net
Network No. corresponding to network.
5. communication terminal according to claim 1, it is characterised in that two or more baseband modules are integrated in together
In one baseband chip.
6. communication terminal according to claim 1, it is characterised in that network mode corresponding to all subscriber cards include GSM,
At least two in CDMA, CDMA2000, CDMA2000 1X, CDMA2000 1X EVDO, WCDMA, TD-SCDMA, LTE.
7. a kind of subscriber card switching method of communication terminal, the communication terminal at least supports two subscriber cards, all subscriber cards
At least correspond to two kinds of network modes, it is characterised in that among all subscriber cards at least exist one support two kinds or two kinds with
The first standby subscriber card under upper network mode, the communication terminal include each base band mould corresponding with every kind of network mode
Block, at least there is one among all baseband modules and support two or more than two subscriber cards in network mould corresponding to baseband module
The first standby baseband module under formula；The subscriber card switching method includes：
When meeting the first switching condition, the network under first network pattern is subjected to standby first subscriber card and switched
To being communicated with first baseband module, to realize first subscriber card in network corresponding to first baseband module
Network under pattern carries out standby；
When meeting the second switching condition, first subscriber card is switched back into the first network pattern corresponding to base band
Module is communicated, to realize that it is standby that network of first subscriber card under the first network pattern is carried out；
Wherein, first switching condition includes：Network loss of first subscriber card under the first network pattern is covered
Lid can not be normally resident；Second switching condition includes：It is determined that it can find under the first network pattern in the presence of covering
Network；
The network that the determination can be found under the first network pattern in the presence of covering includes：
The subscriber card supported based on first baseband module is resident the information of network, retrieves default network information table, institute
State network information table record have network institute covering area under every kind of network mode information and each network corresponding to network No.；
If judging that current locale there may be the network under the first network pattern by the information in the network information table,
Then determine that the network under the first network pattern in the presence of covering can be found；
If judge that current locale can not possibly have the net under the first network pattern by the information in the network information table
Network, then after first subscriber card switches to first baseband module, close the base corresponding to the first network pattern
Band module.
8. the subscriber card switching method of communication terminal according to claim 7, it is characterised in that first switching condition
Also include：The other users card that first baseband module is supported has found network mode corresponding to first baseband module
Under network, and the network can be normally resident.
9. the subscriber card switching method of communication terminal according to claim 7, it is characterised in that also include：When being unsatisfactory for
During first switching condition, and the other users card that first baseband module is supported does not find first baseband module
Network under corresponding network mode, then first subscriber card periodically look for net in the first network pattern.
10. the subscriber card switching method of communication terminal according to claim 7, it is characterised in that the network information table
Net result is looked for be updated by network server end online updating or according to the communication terminal.
11. the subscriber card switching method of communication terminal according to claim 7, it is characterised in that the second switching bar
Part also includes：Find the network under the first network pattern that can be normally resident；It is described when meeting the second switching condition,
First subscriber card is switched back into and communicated with the baseband module corresponding to the first network pattern, to realize described
Network of one subscriber card under the first network pattern carry out it is standby including：
If it is determined that the network under the first network pattern in the presence of covering can be found, then as corresponding to the first network pattern
Baseband module periodically carry out looking for net under the first network pattern；
After the network under the first network pattern that can be resident is found, first subscriber card is switched back into and described
Baseband module corresponding to one network mode is communicated, and is carried out on that network standby.
12. the subscriber card switching method of communication terminal according to claim 7, it is characterised in that described when satisfaction second
During switching condition, first subscriber card is switched back into and communicated with the baseband module corresponding to the first network pattern,
With realize network of first subscriber card under the first network pattern carry out it is standby including：Covered if it is determined that can find and exist
Lid the first network pattern under network, then by first subscriber card switch to the first network pattern corresponding to
Baseband module communicated, net is periodically looked in the first network pattern by first subscriber card, until find
Network under the first network pattern that can be resident, and carry out on that network standby.
13. the subscriber card switching method of communication terminal according to claim 7, it is characterised in that all subscriber cards are corresponding
Network mode include GSM, CDMA, CDMA2000, CDMA2000 1X, CDMA2000 1X EVDO, WCDMA, TD-SCDMA,
At least two in LTE.
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| CN201210594445.8A CN103916922B (en) | 2012-12-31 | 2012-12-31 | Communication terminal and its subscriber card switching method |
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| CN201210594445.8A CN103916922B (en) | 2012-12-31 | 2012-12-31 | Communication terminal and its subscriber card switching method |
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| CN104168594B (en) * | 2014-08-26 | 2017-09-26 | 努比亚技术有限公司 | The communication control method and device of mobile terminal |
| CN105792319B (en) * | 2014-12-24 | 2019-11-05 | 中国移动通信集团公司 | A kind of the access module switching method and relevant device of multimode double-terminal |
| CN104954546B (en) * | 2015-01-23 | 2018-06-12 | 深圳市卡卓无线信息技术有限公司 | Dual-card intelligent terminal and the SIM card intelligent switch method based on dual-card intelligent terminal |
| US9584995B2 (en) * | 2015-05-20 | 2017-02-28 | Apple Inc. | Emergency calling for multi-SIM devices |
| CN105142240B (en) * | 2015-07-31 | 2019-07-02 | 小米科技有限责任公司 | Network setting method and device |
| CN106559086B (en) * | 2015-09-30 | 2019-02-15 | 努比亚技术有限公司 | Mobile terminal and wireless communications method |
| CN106068015A (en) * | 2016-08-19 | 2016-11-02 | 宇龙计算机通信科技(深圳)有限公司 | Method for switching network and system |
| CN108076160B (en) * | 2016-11-08 | 2020-09-01 | 展讯通信（上海）有限公司 | User terminal and service continuing method and device thereof |
| CN108063834B (en) * | 2016-11-08 | 2021-05-11 | 展讯通信（上海）有限公司 | User terminal and method and device for providing mobile communication service |
| CN107071861A (en) * | 2016-12-13 | 2017-08-18 | 北京元心科技有限公司 | Method for base-station scanning and system |
| CN111800833B (en) * | 2019-08-06 | 2022-12-30 | 维沃移动通信有限公司 | Communication processing method, device, equipment and medium |
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