CN102223735A - Method and equipment for multi-baseband chips to share and access smart card - Google Patents
Method and equipment for multi-baseband chips to share and access smart card Download PDFInfo
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- CN102223735A CN102223735A CN2011101420571A CN201110142057A CN102223735A CN 102223735 A CN102223735 A CN 102223735A CN 2011101420571 A CN2011101420571 A CN 2011101420571A CN 201110142057 A CN201110142057 A CN 201110142057A CN 102223735 A CN102223735 A CN 102223735A
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Abstract
The invention provides a method and equipment for multi-baseband chips to share and access a smart card, and aims to solve the problem that multi-communication standards cannot be standby simultaneously. The method comprises the following steps of: setting a master baseband chip and at least one slave baseband chip, connecting each slave baseband chip with the master baseband chip respectively, and connecting the master baseband chip with the smart card; and sending information of accessing the smart card to the smart card one by one by the master baseband chip according to a predetermined strategy when the master baseband chip and each slave baseband chip are in standby state, and the master baseband chip and/or any slave baseband chip generate/generates the information of accessing the smart card, wherein the information is generated by the master baseband chip and/or any slave baseband chip, and the information of accessing the smart card generated by the any slave baseband chip is sent to the master baseband chip by the slave baseband chip for generating the information of accessing the smart card. According to the invention, the multi-communication standards can be standby simultaneously.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly relate to a kind of method and apparatus of many baseband chips share and access smart card.
Background technology
Development along with mobile communication market, in order to increase network utilization and user experience, engendered the terminal that possesses multi-communication standard standby simultaneously ability on the market, this Terminal Type can carry out Cell searching, resident and standby simultaneously in the network of a plurality of communication standards, and carries out business simultaneously in a plurality of networks.
Realize that at present this Terminal Type has two kinds of methods:
A kind of is the method for single deck tape-recorder list baseband chip, and this Terminal Type is by the integrated a plurality of communication standards of single baseband chip, and single thus baseband chip is coordinated the visit of a plurality of communication standards to SIM card (Subscriber Identity Module, subscriber identification module);
Another kind is the method for the many baseband chips of many cards, forms terminal by a plurality of baseband chips, and each baseband chip is visit one SIM card separately, and a baseband chip can not be visited the SIM card that other baseband chip is responsible for visiting.
There is following problem respectively in above-mentioned these two kinds of methods:
Method for single deck tape-recorder list baseband chip, along with communication standard constantly increases, the new traffic standard is added existing baseband chip realize that the difficulty of the integrated multi-communication standard of single baseband chip will improve constantly, the R﹠D cycle constantly extends, and is difficult to realize the multi-communication standard quick listing of standby terminal simultaneously.And the communication standard of supporting owing to baseband chip can't change, so terminal can not be selected the communication standard of required while standby neatly.
For the method for the many baseband chips of many cards, when communication standard more for a long time, need many SIM cards, the user uses inconvenience.
Based on above reason, released the method for the many baseband chips of a kind of single deck tape-recorder again, form terminal by a plurality of baseband chips, a plurality of baseband chip share and access one SIM cards.But, the mode that the method for the present many baseband chips of this single deck tape-recorder adopts hardware to switch usually, promptly switch to another baseband chip and visit this same SIM card by a baseband chip visit SIM card, that is to say, a plurality of baseband chips need switch ability share and access one SIM card, therefore do not realize the standby simultaneously of real multi-communication standard.
In sum, need to solve method how to pass through the many baseband chips of single deck tape-recorder at present and realize the standby simultaneously of real multi-communication standard.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method and apparatus of many baseband chips share and access smart card, to solve the problem of multi-communication standard standby simultaneously.
In order to address the above problem, the invention discloses a kind of method of many baseband chips share and access smart card, comprising:
A main baseband chip and at least one are set from baseband chip, and will respectively be connected with main baseband chip respectively, main baseband chip is connected with smart card from baseband chip;
When main baseband chip with respectively all be in holding state from baseband chip, main baseband chip and/or described arbitrarily when baseband chip produces the information of visit smart card:
Main baseband chip sends to smart card according to the strategy that presets one by one with the information of described main baseband chip and/or the arbitrarily described visit smart card that produces from baseband chip; Wherein, the information of the described arbitrarily described visit smart card that produces from baseband chip is sent to main baseband chip by the information that produces this visit smart card from baseband chip.
Wherein, described main baseband chip sends to smart card according to the strategy that presets one by one with the information of described main baseband chip and/or the arbitrarily described visit smart card that produces from baseband chip and comprises: when main baseband chip produces the information of visit smart card, and the information of the visit smart card that then main baseband chip buffer memory self produces; Arbitrarily described when baseband chip produces the information of visit smart card, the information of the described arbitrarily visit smart card that sends from baseband chip of then main baseband chip buffer memory; Whenever after finishing baseband chip and smart card mutual, the information that main baseband chip is got the visit smart card of a buffer memory according to the strategy that presets sends to smart card.
Preferably, the described strategy that presets comprises: the sequencing of buffer memory; And/or, professional priority; And/or, preferentially transmit each information, and then the information of self visiting smart card is sent from baseband chip visit smart card; And/or the information of preferentially self being visited smart card sends, and then transmits each information from baseband chip visit smart card.
Preferably, describedly respectively be connected with main baseband chip respectively from baseband chip, comprising: intelligent card interface sets up standard on described main baseband chip; Respectively link to each other with standard intelligent card interface on the main baseband chip from the standard intelligent card interface of baseband chip by self.
Preferably, arbitrarily described when baseband chip produces the information of visit smart card when the idle function of closing main baseband chip, also comprise: the information of the visit smart card that self produces is sent to main baseband chip from baseband chip; Main baseband chip sends to smart card one by one according to the information of the visit smart card that the described strategy that presets will be sent from baseband chip.
Preferably, described method also comprises: between main baseband chip and smart card diverter switch is set, main baseband chip is connected with smart card by described diverter switch; To respectively be connected with smart card by described diverter switch from baseband chip; When main baseband chip with respectively when baseband chip all is in holding state, the described diverter switch of conducting is connected with main baseband chip, and closes described diverter switch and being connected from baseband chip respectively.
Preferably, described method also comprises: when closing main baseband chip, close being connected of described diverter switch and main baseband chip; When only being provided with one during from baseband chip, the described diverter switch of conducting with from being connected of baseband chip, should directly visit smart card by diverter switch from baseband chip; A plurality of during when being provided with from baseband chip, respectively directly visit smart card by diverter switch respectively in the mode of switching from baseband chip.
The present invention also provides a kind of equipment of many baseband chips share and access smart card, comprising:
Main baseband chip and at least one respectively are connected with main baseband chip respectively from baseband chip from baseband chip, and described main baseband chip is connected with smart card;
When main baseband chip with respectively all be in holding state from baseband chip, main baseband chip and/or described arbitrarily when baseband chip produces the information of visit smart card:
Described from baseband chip be used for by with being connected of main baseband chip, the information of visit smart card is sent to described main baseband chip;
Described main baseband chip be used for by with being connected of smart card, according to the strategy that presets the information of main baseband chip and/or the described arbitrarily visit smart card that produces from baseband chip is sent to smart card one by one.
Preferably, described main baseband chip comprises:
Cache module is used for when main baseband chip produces the information of visit smart card, then the information of the visit smart card of buffer memory master baseband chip generation; When arbitrarily described when baseband chip produces the information of visit smart card, the information of the described arbitrarily visit smart card that sends from baseband chip of buffer memory then;
The master control module, be used for whenever finishing baseband chip and smart card mutual after, the information of getting a visit smart card according to the strategy that presets from described cache module sends to smart card.
Preferably, the described strategy that presets comprises: the sequencing of buffer memory; And/or, professional priority; And/or, preferentially transmit each information, and then the information of self visiting smart card is sent from baseband chip visit smart card; And/or the information of preferentially self being visited smart card sends, and then transmits each information from baseband chip visit smart card.
Preferably, described main baseband chip comprises and is used for the standard intelligent card interface that is connected with smart card, also comprises one or more standard intelligent card interfaces that are used for and are connected from baseband chip; Each comprises the standard intelligent card interface from baseband chip, and each links to each other with standard intelligent card interface on the main baseband chip from the standard intelligent card interface of baseband chip by self.
Preferably, when the idle function of closing main baseband chip, arbitrarily described when baseband chip produces the information of visit smart card: the described information that also is used for the visit smart card that will self produce from baseband chip is sent to main baseband chip; The information that described main baseband chip also is used for the visit smart card that will send from baseband chip according to the described strategy that presets sends to smart card one by one.
Preferably, when described equipment is multi-module mobile terminal, also comprise: diverter switch, the one end is connected with smart card, the other end respectively with main baseband chip with respectively be connected from baseband chip; When main baseband chip with respectively when baseband chip all is in holding state, described diverter switch is used for being connected of conducting self and main baseband chip, and closes self and being connected from baseband chip respectively.
Preferably, when closing main baseband chip: described diverter switch also is used to close self and being connected of main baseband chip, and conducting self and any one described being connected from baseband chip.
Preferably, when described equipment is multi-module mobile terminal, also comprise: application processor, respectively with described main baseband chip with respectively be connected from baseband chip, be used for respectively to described main baseband chip and respectively transmit control signal from baseband chip.
Preferably, when described equipment is multimode data card, also comprise: external communication interface, the one end is connected with main baseband chip, and the other end is connected with external equipment, and described multimode data card carries out communication by described external communication interface and external equipment.
Compared with prior art, the present invention includes following advantage:
At first, in the equipment of many baseband chips share and access smart card provided by the invention, described many baseband chips comprise a main baseband chip and at least one from baseband chip, and wherein said main baseband chip is connected with smart card, be responsible for smart card truly alternately; Respectively be connected forwarding realization by main baseband chip and smart card mutual respectively with main baseband chip from baseband chip.At described main baseband chip with from the process of baseband chip share and access smart card, when main baseband chip with when baseband chip all is in holding state, described main baseband chip can be visited oneself the information of smart card and/or arbitrarily from the information of baseband chip visit smart card, be sent to described smart card one by one according to certain strategy.This shows that main baseband chip and respectively can keep mutual with smart card simultaneously from baseband chip need not to carry out the switching of baseband chip, thereby realized the standby simultaneously of real multi-communication standard.
Secondly, main baseband chip provides the intelligent card interface of a standard for each among the present invention from baseband chip, each links to each other with standard intelligent card interface on the main baseband chip by the standard intelligent card interface on self chip from baseband chip, and main baseband chip is realized a plurality of baseband chips while share and access smart cards by transmit the instruction that issues from baseband chip to smart card.Because main baseband chip from being connected all by meeting the interface of smart card standard of baseband chip, need not to revise respectively structure and corresponding software from baseband chip with respectively, thus the present invention well compatibility have equipment from baseband chip.
Once more, main baseband chip can be connected with smart card by diverter switch among the present invention, and respectively also is connected with smart card respectively by described diverter switch from baseband chip.When main baseband chip with respectively when baseband chip all is in holding state, described diverter switch is self conducting that is connected with main baseband chip, and with self with respectively from the connection closed of baseband chip.After closing described main baseband chip, described diverter switch is with the connection closed of self and main baseband chip, respectively directly visit described smart card by diverter switch respectively in the mode of switching, need not forwarding, thereby realized single standby by main baseband chip from baseband chip.This single standby has been owing to closed main baseband chip, therefore the energy consumption of more saving equipment.
Description of drawings
Fig. 1 is the equipment structure chart of the described a kind of many baseband chips share and access smart card of the embodiment of the invention;
Fig. 2 is the method flow diagram of the described a kind of many baseband chips share and access smart card of the embodiment of the invention;
Fig. 3 is the structure chart of the described a kind of multi-module mobile terminal of the embodiment of the invention;
Fig. 4 is the structure chart of the described a kind of multimode database of the embodiment of the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
The present invention proposes a kind of method and apparatus of many baseband chips share and access smart card, can realize the standby simultaneously of real multi-communication standard.Be elaborated below by embodiment.
At first introduce the equipment of the described many baseband chips share and access of embodiment of the invention smart card by Fig. 1.
With reference to Fig. 1, be the equipment structure chart of the described a kind of many baseband chips share and access smart card of the embodiment of the invention.
Described equipment comprises a plurality of baseband chips and a smart card, described smart card can be SIM card (Subscriber Identity Module, subscriber identification module), usim card (Universal Subscriber Identity Module, USIM), UIM card (User Identity Model, subscriber identification module), the smart card of RUIM card (Removable User Identity Module, Removable User Identity Module) or the like type.
A plurality of baseband chips in the described equipment comprise that a main baseband chip 11 and at least one from baseband chip 12, respectively are connected with main baseband chip 11 respectively from baseband chip 12, and described main baseband chip 11 is connected with smart card 13.Having illustrated three among Fig. 1 from baseband chip 12, certainly, according to the difference of practical application, can be one or more from the quantity of baseband chip 12.And, can integrated one or more communication standards on the baseband chip.
Wherein, described when after baseband chip 12 is used for starting, being in holding state, by with being connected of main baseband chip 11, the information of visit smart card is sent to described main baseband chip 11, described main baseband chip 11 will carry out buffer memory from the information that baseband chip is visited smart card.When being in holding state after described main baseband chip 11 is used for starting,, then carry out buffer memory if produce the information of visit smart card 13; Also be used for by with being connected of smart card 13, with the information of oneself visit smart card of buffer memory and/or each sends to described smart card 13 respectively from the information of baseband chip 12 visit smart cards arbitrarily.
Wherein, described " and/or " can be understood as:
Described " or " be meant: when main baseband chip with arbitrarily when baseband chip all is in holding state, suppose at a time, or main baseband chip visit smart card, or visit smart card from baseband chip by the forwarding of main base-band information arbitrarily;
Described " with " be meant: when main baseband chip with arbitrarily when baseband chip all is in holding state, suppose at a time, main baseband chip and any information that has all produced the visit smart card from baseband chip, and the described information that will visit smart card from baseband chip is sent to main baseband chip, this moment, the information of visit smart card of main baseband chip buffer memory comprised the information of main baseband chip self visit smart card and described arbitrarily from the information of baseband chip visit smart card, and main baseband chip can send to smart card with information of these visit smart cards of buffer memory one by one according to the strategy that presets.
As from the foregoing, at main baseband chip with when baseband chip all is in holding state, main baseband chip can directly be visited smart card, and respectively from forwarding realization and smart card mutual of baseband chip by main baseband chip.
Based on the foregoing description, the present invention also provides the embodiment that is more preferably, and is specific as follows:
Described main baseband chip 11 comprises that is used for a standard intelligent card interface 14 that is connected with smart card 13, also comprise one or more standard intelligent card interfaces 15 that are used for and are connected from baseband chip 12, the main baseband chip 11 among Fig. 1 comprises three standard intelligent card interfaces 15;
In addition, each comprises the intelligent card interface 16 of a standard from baseband chip 12, and each links to each other with standard intelligent card interface 15 on the main baseband chip 11 by the standard intelligent card interface 16 on its chip from baseband chip 12.
Wherein, the intelligent card interface of described standard all is meant the interface that meets smart card standard (as standards such as ISO 7816).
In the prior art, it is described from baseband chip to have the embodiment of the invention on some equipment, if described main baseband chip of the embodiment of the invention and the intelligent card interface that does not respectively adopt standard from the connecting interface of baseband chip, but adopt self-defining interface, then also needing to revise respectively from the hardware and software of baseband chip makes it meet the standard of self defined interface, cost height not only in the practical application, and realize complicatedly, the debugging difficulty of program is also bigger.
For these reasons, in the preferred embodiment of the present invention, because main baseband chip and being connected respectively from baseband chip all by meeting the interface of smart card standard, need not to revise respectively hardware configuration and corresponding software, so the described equipment of present embodiment can the compatible well existing equipment that has from baseband chip from baseband chip.
Based on the content of above-mentioned each apparatus embodiments, describe described equipment below in detail and how to realize many baseband chips share and access smart card.
With reference to Fig. 2, be the method flow diagram of the described a kind of many baseband chips share and access smart card of the embodiment of the invention.
Step 201 starts main baseband chip and each also all is in holding state from baseband chip;
Usually, at first start main baseband chip, main baseband chip by with being connected of smart card, finish the initial work of smart card;
Then, start each, do not have mandatory requirement from the boot sequence of baseband chip from baseband chip.
After main baseband chip started, main baseband chip was in holding state; After each starts from baseband chip, respectively also be in holding state from baseband chip.
When main baseband chip with respectively after baseband chip all starts, principal and subordinate's baseband chip is in the state of standby simultaneously, and therefore, main baseband chip may want to visit smart card, produces the information of visit smart card; Each also may want to visit this smart card from baseband chip, also can send the information of visit smart card by the intelligent card interface of standard to main baseband chip.If all produce the information of visit smart card at synchronization principal and subordinate baseband chip, not only have in the then described main baseband chip and oneself visit the information of smart card, also can receive the information of each visit smart card of sending from baseband chip, main baseband chip can all carry out buffer memory to information and each information from baseband chip visit smart card of oneself visit smart card.If synchronization has only main baseband chip to produce the information of visit smart card, then main base-band information buffer memory self is visited the information of smart card; If synchronization has only any one or a plurality ofly produces the information of visit smart card from baseband chip, then main base-band information buffer memory is from the information of baseband chip visit smart card.
Information for the so many visit smart card of main baseband chip buffer memory, main baseband chip need be coordinated by the effect of master control, thereby makes the main baseband chip that is in standby simultaneously and can both send same sheet smart card to from the information that baseband chip is visited smart card separately.
In the practical application, main baseband chip can adopt various strategies to coordinate information and each information from baseband chip visit smart card of the main baseband chip visit smart card of buffer memory, and sends to described smart card one by one.
For example:
(1) sequencing according to buffer memory sends one by one;
Suppose an information a who sends a visit smart card from baseband chip earlier to main baseband chip, main then baseband chip produces one and oneself visits the information b of smart card, and another also sends the information c of a visit smart card to main baseband chip from baseband chip then again.So, main baseband chip just sends to smart card one by one according to the buffer memory order of a, b, c.In the process that sends a, buffer memory b, c.
(2) priority or the professional priority of setting according to the user sends one by one;
The priority of described business such as 3G business have precedence over the 2G business, and the 4G business has precedence over the 3G business, or the like.
The priority that described user sets is meant: allows the user to set up the priority level of transmission on their own, sets incoming call as the user and have precedence over short message, or the like.
(3) preferentially transmit each information, and then the information of oneself visiting smart card is sent to described smart card from baseband chip visit smart card to described smart card;
This strategy is the other side's principle of priority, and promptly main baseband chip is preferential transmits the information of the visit smart card of sending from baseband chip, and own information of visiting smart card is postponed transmission.
(4) preferentially the information of own visit smart card is sent to described smart card, and then transmit each visits smart card from baseband chip information to described smart card.
Opposite with above-mentioned strategy (3), this strategy is the own principle of priority of main baseband chip.
Several strategies of more than enumerating can also can be set according to self-demand by the user by factory settings.
Main baseband chip can adopt the combination of any strategy or several strategies, at main baseband chip with under the situation of baseband chip standby simultaneously, information and each information from baseband chip visit smart card of oneself visiting smart card are issued smart card one by one by coordinated mode, thereby make the same sheet smart card of a plurality of baseband chip share and access, standby when realizing communicating by letter cross more.
Certainly, outside the above-mentioned strategy of enumerating, practical application can also have other strategy, and the embodiment of the invention is not done qualification to this.
As from the foregoing, in the process of many baseband chips share and access smart card, be responsible for true mutual with smart card by main baseband chip, respectively from baseband chip respectively forwarding realization by main baseband chip and smart card alternately.The more important thing is, described main baseband chip and each can keep mutual with smart card simultaneously from baseband chip, described " simultaneously " is meant: main baseband chip and each all are in holding state from baseband chip, main baseband chip plays the master control effect, oneself can be visited information and each information of smart card from baseband chip visit smart card, arrangement according to certain strategy sends to described smart card respectively, thereby realize many baseband chips share and access smart card, and described share and access need not to carry out the switching of baseband chip, thereby realized the standby simultaneously of real multi-communication standard.
The many baseband chips of this single deck tape-recorder possess the ability of multi-communication standard standby simultaneously, can select the baseband chip of required communication standard flexibly as required, and after new communication standard occurs, can provide the equipment that possesses multi-communication standard standby simultaneously ability quickly than other method.
Based on content embodiment illustrated in fig. 2, the present invention also provides the embodiment that is more preferably, and is specific as follows:
Before the main baseband chip of step 203 sends to smart card with the information of the visit smart card of buffer memory, main baseband chip judge earlier current whether carrying out baseband chip and smart card alternately.Wherein, described baseband chip can be main baseband chip, promptly whether is carrying out the operation of main baseband chip visit smart card; Described baseband chip also can be from baseband chip, promptly whether is carrying out certain operation from baseband chip visit smart card.
If current the mutual of baseband chip and smart card that do not carry out, then main baseband chip can send to smart card with the information of the visit smart card of buffer memory.Concrete, main baseband chip selects the information of the visit smart card of a buffer memory to send to smart card according to the above-mentioned strategy that presets.
If need waiting for, current the mutual of baseband chip and smart card that carrying out, then main baseband chip describedly again the information of the visit smart card of buffer memory is sent to smart card after finishing alternately.
Below with the mutual of SIM card be that example describes:
If carry out alternately with SIM card, each comes to carry out alternately with SIM card to main baseband chip transmission APDU (Application Protocol data unit, Application Protocol Data Unit) according to the agreement of standard SIM card from baseband chip.Wherein, once complete APDU comprises one or more TPDU (Transport Protocol Data Unit, the TPDU) order of smart card and command responses that smart card returns of being sent to alternately.
Go forward side by side behind the row cache when main baseband chip receives certain TPDU that sends from baseband chip X, judge current the mutual of APDU and SIM card that whether carrying out:
If current a baseband chip has been arranged (may be that other are from baseband chip, also may be main baseband chip) in the middle of the carrying out alternately of the APDU that triggers and SIM card, then main baseband chip waits for that the APDU request of selecting a buffer memory after this APDU reciprocal process finishes again continues and SIM card is carried out alternately.Wherein, the principle of selection can also can be determined (priority that sets in advance as the user or the like) by the sequencing decision of APDU request by other principle, and the principle of selection can be with reference to above-mentioned several strategies of enumerating.
If in the middle of the carrying out alternately of the APDU that (may be other from baseband chip, also may be main baseband chip) triggers current neither one baseband chip and SIM card, then main baseband chip is directly selected an information transmission of visiting smart card.Wherein, the principle of selection also can be with reference to above-mentioned several strategies of enumerating.In this case, if having only the described TPDU that sends from baseband chip X in the buffer memory, then main baseband chip can directly be transmitted this APDU and ask to SIM card.
Because it is mutual that APDU may relate to a plurality of TPDU alternately, therefore in APDU reciprocal process, if main baseband chip receives the APDU request of sending from baseband chip, or the APDU request that oneself produces the visit SIM card, before current a plurality of TPDU mutual (promptly an APDU is mutual) do not finish, do not allow that to carry out other APDU mutual with this SIM card.In brief, be exactly not allow mutual intersection of a plurality of APDU to carry out, can avoid data to obscure like this, but also can improve the efficient mutual with SIM card.
In addition, based on content embodiment illustrated in fig. 2, the present invention also provides another preferred embodiment, and is specific as follows:
As previously mentioned, described main baseband chip plays the effect of master control in whole communication process, and it is mutual that main baseband chip can be finished own visit with smart card on the one hand, can also transmit other interactive information from baseband chip and smart card on the other hand.In this preferred embodiment, if close the idle function of described main baseband chip, then described main baseband chip can't produce the information of visit smart card; But,, can also be transmitted to described smart card respectively when described main baseband chip receives each after the information of baseband chip visit smart card.That is: after the communication function of described main baseband chip was closed, its forwarding capability can also continue.
Concrete, when described main baseband chip receives a plurality of information from baseband chip visit smart card, still can be respectively carrying out buffer memory from the information of baseband chip visit smart card, and the information of the visit smart card of buffer memory is transmitted to smart card one by one according to the strategy that presets.Wherein, the described strategy that presets includes but not limited to following enumerate several:
(1) sequencing according to visit sends one by one;
(2) priority according to business sends one by one;
(3) priority of setting according to the user sends one by one;
(4) send one by one according to priority from baseband chip.
When being a plurality of from baseband chip, can set the priority level of respectively visiting smart card from baseband chip, described main baseband chip can select the high information from baseband chip visit smart card of priority to send to smart card earlier from buffer memory, and then sends the low information from baseband chip visit smart card of priority.
In sum, for aforesaid each method embodiment, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
In conjunction with foregoing, further understand content of the present invention in order to make those skilled in the art, describe below by two object lessons.
Example 1: a kind of multi-module mobile terminal
The equipment of above-mentioned many baseband chips share and access smart card is applied in the portable terminal, a kind of multi-module mobile terminal can be provided.
With reference to Fig. 3, be the structure chart of the described a kind of multi-module mobile terminal of the embodiment of the invention.
Described multi-module mobile terminal comprises two baseband chips, and one is main baseband chip, and another is from baseband chip.In this example, described main baseband chip is TD-LTE BB (hereinafter to be referred as TDL), is mainly used in 4G or 5G business, and described is TD-SCDMA BB (hereinafter to be referred as TDS) from baseband chip, is mainly used in 2G or 3G business.
Described main baseband chip TDL provides two SIM card interfaces, and one of them SIM card interface (as the USIM Master among the figure) is used for being connected with SIM, and another SIM card interface (as the USIM Slaver among the figure) is used for and is connected from baseband chip TDS.
Described multi-module mobile terminal comprises that also one switches switch, and the one end is connected with SIM card, the other end respectively with main baseband chip TDL be connected from baseband chip TDS.Described diverter switch is used for as main baseband chip TDL with when baseband chip TDS all is in holding state, with self conducting that is connected with main baseband chip TDL, and with self with from the connection closed of baseband chip TDS, describedly visit described SIM card from baseband chip TDS by the forwarding of main baseband chip TDL, described main baseband chip TDL visits SIM card by diverter switch.
Described diverter switch also is used for after closing main baseband chip TDL, connection closed with self and main baseband chip TDL, and with self and the conducting that is connected from baseband chip TDS, describedly can directly visit described SIM card by diverter switch from baseband chip TDS, need not forwarding, thereby realized single standby by main baseband chip TDL.This single standby has been owing to closed main baseband chip TDL, therefore the energy consumption of more saving described multi-module mobile terminal.
In addition, a plurality of if main baseband chip TDL connects simultaneously from baseband chip TDS (not shown Fig. 3), and respectively all be connected with SIM card by described diverter switch from baseband chip TDS.In this case, if main baseband chip TDL and a plurality ofly all be in holding state from baseband chip TDS, then described diverter switch is with self conducting that is connected with main baseband chip TDL, and with self and respectively from the connection closed of baseband chip TDS, respectively all can be by the forwarding visit SIM card of main baseband chip TDL from baseband chip TDS.
If close main baseband chip TDL, then described diverter switch is with the connection closed of self and main baseband chip TDL.At this moment, respectively directly visit SIM card by diverter switch respectively in the mode of switching from baseband chip TDS.The mode of described switching is meant: when certain during from baseband chip TDS1 request visit SIM card, described diverter switch is with self conducting that is connected from baseband chip TDS1 with the current accessed SIM card, and with self and all the other connection closeds from baseband chip TDS, current request visit SIM card just can directly visit SIM card by diverter switch from baseband chip TDS1 like this.After the visit from baseband chip TDS1 finishes, if another is from baseband chip TDS2 request visit SIM card, diverter switch can close self with from being connected of baseband chip TDS1, with self and the conducting that is connected, realize from baseband chip TDS2 visit SIM card from baseband chip TDS2.
Described multi-module mobile terminal also comprises an application processor, respectively with described main baseband chip TDL be connected from baseband chip TDS, be used for transmitting control signal to described main baseband chip TDL with from baseband chip TDS respectively, as startup and shutdown signal, single standby signal, two standby signals or the like.In this example, described application processor and main baseband chip TDL with can adopt USB interface from being connected of baseband chip TDS, also can adopt the SDIO interface.In addition, described application processor can also be to above-mentioned diverter switch transmitting control commands, and which control its switch connect conducting or close with.
Based on above-mentioned structure shown in Figure 3, described multi-module mobile terminal provides two kinds of mode of operations, and a kind of is dual standby mode, and another kind is single standby mode.When TDL and TDS pair of standby, TDS passes through the TDL transfer to the visit of SIM card; When the standby of TDS list, TDS directly carries out the visit of SIM card, and TDL is in off-mode.Described two kinds of mode of operations are carried out the switching of pattern by the application processor control its switch.
The process that switches to two standbies is as follows:
Application processor is all reset TDS and TDL (reset), and analog switch is set is 0;
At first, application processor transmits control signal and starts TDL, and TDL carries out the initialization procedure of SIM card;
According to the smart card standard agreement, described initialization procedure relates to the transmission of VCC (voltage signal), CLK (clock signal), several signals of RST (reset signal), DIO (IO signal), as shown in Figure 3;
Then, application processor transmits control signal and starts TDS.
After TDS and TDL start, can carry out many baseband chips share and access SIM card according to flow process shown in Figure 2 standby simultaneously.
The process that switches to the single standby of TDS is as follows:
Application processor is all reset TDS and TDL (reset), and analog switch is set is 1;
Application processor transmits control signal and starts TDS, and TDS carries out the initialization procedure of SIM card.
Under the single standby mode of TDS, because TDL is in off-mode, so the energy consumption that can save multi-module mobile terminal.
In order to realize above-mentioned dual standby mode, described main baseband chip TDL can comprise master control module and cache module, wherein:
Cache module is used for when main baseband chip produces the information of visit smart card, then the information of the visit smart card of buffer memory master baseband chip generation; When arbitrarily described when baseband chip TDS produces the information of visit smart card, the information of the described arbitrarily visit smart card that sends from baseband chip of buffer memory then;
The master control module, be used for whenever finishing baseband chip and smart card mutual after, the information of getting a visit smart card according to the strategy that presets from described cache module sends to smart card.
As previously mentioned, the described strategy that presets can comprise:
The sequencing of asking according to buffer memory;
And/or, according to the priority of business;
And/or, preferentially transmit from the information of baseband chip TDS visit SIM card, and then the information of oneself visiting SIM card is sent to described SIM card to described SIM card;
And/or the information of preferentially oneself being visited SIM card sends to described SIM card, and then transmits from the information of baseband chip TDS visit SIM card to described SIM card;
Or the like.
Preferably, when application processor transmits control signal to main baseband chip TDL, close the idle function of described main baseband chip TDL, described main baseband chip TDL still is in the operating state of forwarding from baseband chip TDS visit SIM card information.That is: arbitrarily described when baseband chip produces the information of visit smart card: the described information that also is used for the visit smart card that will self produce from baseband chip is sent to main baseband chip; The information that described main baseband chip also is used for the visit smart card that will send from baseband chip according to the described strategy that presets sends to smart card one by one.
In sum, described multi-module mobile terminal is supported fully two standbies of TDS and TDL, and the SIM card interface of the standard of employing need not to revise existing TDS software.
Example 2: a kind of multimode data card
The equipment of above-mentioned many baseband chips share and access smart card is applied in the data card, a kind of multimode data card can be provided.
With reference to Fig. 4, be the structure chart of the described a kind of multimode database of the embodiment of the invention.
The structure of described multimode data card and the similar of multi-module mobile terminal shown in Figure 3 comprise that also a main baseband chip TDL and one are from baseband chip TDS.Described main baseband chip TDL also provides two SIM card interfaces, and one of them SIM card interface (as the USIM Master among the figure) is used for being connected with SIM, and another SIM card interface (as the USIM Slaver among the figure) is used for and is connected from baseband chip TDS.
The course of work of described multimode data card also can be with reference to flow process shown in Figure 2, and wherein, TDS passes through the TDL transfer to the visit of SIM card; Equally, the modular structure that main baseband chip TDL is comprised in the described multimode data card also can be with reference to the description of above-mentioned multi-module mobile terminal, and these contents all are not described in detail in this.
In addition, different with multi-module mobile terminal is, described multimode data card does not comprise diverter switch and application processor, but comprise external communication interface, the one end is connected with main baseband chip TDL, the other end is connected with external equipment, and described multimode data card carries out communication by described external communication interface and external equipment.In this example, described external communication interface is a USB interface, and described USB interface is responsible for processing by TDL.Like this, described multimode data card just can insert PC etc. by USB interface to have in the external equipment of USB interface, receives various control signals from these external equipments.
In addition, in the described multimode data card, main baseband chip TDL and also be connected with the SDIO data wire between the baseband chip TDS is used for service data transmission.After in the external equipments such as multimode data card insertion PC, realize from can transmitting by main baseband chip TDL alternately of baseband chip TDS and PC.
In sum, standby when described multimode data card can be realized TDS and TDL adopts the SIM card interface of standard to need not to revise existing TDS software.
For described multimode data card because it is similar with multi-module mobile terminal, so describe fairly simple, relevant part gets final product referring to the part explanation of multi-module mobile terminal.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
And, above " and/or " expression this paper both comprised " with " relation, also comprised " or " relation, wherein: if option A and option b be " with " relation, then represent can to comprise option A and option b simultaneously among certain embodiment; If option A and option b be " or " relation, then represent can comprise option A separately among certain embodiment, perhaps comprise option b separately.
More than to the method and apparatus of a kind of many baseband chips share and access smart card provided by the present invention, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (16)
1. the method for the smart card of baseband chip share and access more than a kind is characterized in that, comprising:
A main baseband chip and at least one are set from baseband chip, and will respectively be connected with main baseband chip respectively, main baseband chip is connected with smart card from baseband chip;
When main baseband chip with respectively all be in holding state from baseband chip, main baseband chip and/or described arbitrarily when baseband chip produces the information of visit smart card:
Main baseband chip sends to smart card according to the strategy that presets one by one with the information of described main baseband chip and/or the arbitrarily described visit smart card that produces from baseband chip; Wherein, the information of the described arbitrarily described visit smart card that produces from baseband chip is sent to main baseband chip by the information that produces this visit smart card from baseband chip.
2. method according to claim 1 is characterized in that, described main baseband chip sends to smart card according to the strategy that presets one by one with the information of described main baseband chip and/or the arbitrarily described visit smart card that produces from baseband chip and comprises:
When main baseband chip produces the information of visit smart card, the information of the visit smart card that then main baseband chip buffer memory self produces; Arbitrarily described when baseband chip produces the information of visit smart card, the information of the described arbitrarily visit smart card that sends from baseband chip of then main baseband chip buffer memory;
Whenever after finishing baseband chip and smart card mutual, the information that main baseband chip is got the visit smart card of a buffer memory according to the strategy that presets sends to smart card.
3. method according to claim 2 is characterized in that, the described strategy that presets comprises:
The sequencing of buffer memory;
And/or, professional priority;
And/or, preferentially transmit each information, and then the information of self visiting smart card is sent from baseband chip visit smart card;
And/or the information of preferentially self being visited smart card sends, and then transmits each information from baseband chip visit smart card.
4. method according to claim 1 is characterized in that, describedly respectively is connected with main baseband chip respectively from baseband chip, comprising:
Intelligent card interface sets up standard on described main baseband chip;
Respectively link to each other with standard intelligent card interface on the main baseband chip from the standard intelligent card interface of baseband chip by self.
5. according to the arbitrary described method of claim 1 to 4, it is characterized in that, arbitrarily described when baseband chip produces the information of visit smart card when the idle function of closing main baseband chip, also comprise:
The information of the visit smart card that self is produced from baseband chip is sent to main baseband chip;
Main baseband chip sends to smart card one by one according to the information of the visit smart card that the described strategy that presets will be sent from baseband chip.
6. according to the arbitrary described method of claim 1 to 4, it is characterized in that, also comprise:
Between main baseband chip and smart card diverter switch is set, main baseband chip is connected with smart card by described diverter switch;
To respectively be connected with smart card by described diverter switch from baseband chip;
When main baseband chip with respectively when baseband chip all is in holding state, the described diverter switch of conducting is connected with main baseband chip, and closes described diverter switch and being connected from baseband chip respectively.
7. method according to claim 6 is characterized in that, also comprises:
When closing main baseband chip, close being connected of described diverter switch and main baseband chip;
When only being provided with one during from baseband chip, the described diverter switch of conducting with from being connected of baseband chip, should directly visit smart card by diverter switch from baseband chip;
A plurality of during when being provided with from baseband chip, respectively directly visit smart card by diverter switch respectively in the mode of switching from baseband chip.
8. the equipment of the smart card of baseband chip share and access more than a kind is characterized in that, comprising:
Main baseband chip and at least one respectively are connected with main baseband chip respectively from baseband chip from baseband chip, and described main baseband chip is connected with smart card;
When main baseband chip with respectively all be in holding state from baseband chip, main baseband chip and/or described arbitrarily when baseband chip produces the information of visit smart card:
Described from baseband chip be used for by with being connected of main baseband chip, the information of visit smart card is sent to described main baseband chip;
Described main baseband chip be used for by with being connected of smart card, according to the strategy that presets the information of main baseband chip and/or the described arbitrarily visit smart card that produces from baseband chip is sent to smart card one by one.
9. equipment according to claim 8 is characterized in that, described main baseband chip comprises:
Cache module is used for when main baseband chip produces the information of visit smart card, then the information of the visit smart card of buffer memory master baseband chip generation; When arbitrarily described when baseband chip produces the information of visit smart card, the information of the described arbitrarily visit smart card that sends from baseband chip of buffer memory then;
The master control module, be used for whenever finishing baseband chip and smart card mutual after, the information of getting a visit smart card according to the strategy that presets from described cache module sends to smart card.
10. equipment according to claim 9 is characterized in that, the described strategy that presets comprises:
The sequencing of buffer memory;
And/or, professional priority;
And/or, preferentially transmit each information, and then the information of self visiting smart card is sent from baseband chip visit smart card;
And/or the information of preferentially self being visited smart card sends, and then transmits each information from baseband chip visit smart card.
11. equipment according to claim 8 is characterized in that:
Described main baseband chip comprises and is used for the standard intelligent card interface that is connected with smart card, also comprises one or more standard intelligent card interfaces that are used for and are connected from baseband chip;
Each comprises the standard intelligent card interface from baseband chip, and each links to each other with standard intelligent card interface on the main baseband chip from the standard intelligent card interface of baseband chip by self.
12. to 11 arbitrary described equipment, it is characterized in that according to Claim 8, when the idle function of closing main baseband chip, arbitrarily described when baseband chip produces the information of visit smart card:
The described information that also is used for the visit smart card that will self produce from baseband chip is sent to main baseband chip;
The information that described main baseband chip also is used for the visit smart card that will send from baseband chip according to the described strategy that presets sends to smart card one by one.
13. to 11 arbitrary described equipment, it is characterized in that according to Claim 8, when described equipment is multi-module mobile terminal, also comprise:
Diverter switch, the one end is connected with smart card, the other end respectively with main baseband chip with respectively be connected from baseband chip;
When main baseband chip with respectively when baseband chip all is in holding state, described diverter switch is used for being connected of conducting self and main baseband chip, and closes self and being connected from baseband chip respectively.
14. equipment according to claim 13 is characterized in that, when closing main baseband chip:
Described diverter switch also is used to close self and being connected of main baseband chip, and conducting self and any one described being connected from baseband chip.
15. to 11 arbitrary described equipment, it is characterized in that according to Claim 8, when described equipment is multi-module mobile terminal, also comprise:
Application processor, respectively with described main baseband chip with respectively be connected from baseband chip, be used for respectively to described main baseband chip and respectively transmit control signal from baseband chip.
16. to 11 arbitrary described equipment, it is characterized in that according to Claim 8, when described equipment is multimode data card, also comprise:
External communication interface, the one end is connected with main baseband chip, and the other end is connected with external equipment, and described multimode data card carries out communication by described external communication interface and external equipment.
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| CN2011101420571A CN102223735A (en) | 2011-05-30 | 2011-05-30 | Method and equipment for multi-baseband chips to share and access smart card |
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Application publication date: 20111019 |