CN106028304A - Mobile communication terminal having wireless transmission function of embedded SIM card data - Google Patents

Mobile communication terminal having wireless transmission function of embedded SIM card data Download PDF

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Publication number
CN106028304A
CN106028304A CN201610278994.2A CN201610278994A CN106028304A CN 106028304 A CN106028304 A CN 106028304A CN 201610278994 A CN201610278994 A CN 201610278994A CN 106028304 A CN106028304 A CN 106028304A
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China
Prior art keywords
microcontroller
interface
data
sim card
sim
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CN201610278994.2A
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Chinese (zh)
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王家城
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Individual
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Individual
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Priority to CN201610278994.2A priority Critical patent/CN106028304A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication

Abstract

The invention belongs to the field of mobile communication terminals. A micro controller module, a wireless communication interface and an SIM card controller of a mobile communication terminal are added in the mobile communication terminal with an embedded SIM card, so that the SIM card data is used more flexibly and conveniently without influencing the functions of the mobile communication terminal. Besides using the identity authentication and authentication data of the embedded SIM card to access a cellular mobile communication network, the mobile communication terminal can also remotely use the identity authentication and authentication data of other SIM cards to access the cellular mobile communication network through a wireless communication interface. Meanwhile, the mobile communication terminal can also remotely and wirelessly provide the identity authentication and authentication data of the embedded SIM card for other mobile communication terminals through the wireless communication interface, in order to access the cellular mobile communication network to acquire mobile communication services.

Description

A kind of mobile communication terminal with embedded SIM card data wireless transmission function
Technical field
The invention belongs to mobile communication terminal field.Specifically, the present invention relates to a kind of shifting with embedded SIM card data wireless transmission function Mobile communication terminal so that other other mobile communication terminal wirelessly can remotely use embedded SIM card data access honeycomb Mobile communications network.And this mobile communication terminal can also pass through wireless receiving SIM data, does not use the embedded SIM being fixed therein Card, and remotely use other other SIM data access cellular mobile communication networks.
Background technology
Along with the function of mobile phone particularly smart mobile phone becomes from strength to strength, it is more and more important in the life of people.People are by intelligence hands Machine completes various Mobile solution, in addition to for basic voice call and word message, also carries out watching video with smart mobile phone, browses Photo, browses webpage, mobile payment etc..Smart mobile phone the most progressively becomes a required personal device in people's daily life.
In order to make smart mobile phone (include that some other has access to the subscriber terminal equipment of cellular mobile communication networks such as mobile fixed-line, panel computer, Notebook computers etc., are the most all called for short mobile phone) access cellular mobile communication networks, each mobile phone is required for one and obtains at mobile communication carrier The SIM (subscriber identification card, including usim card, for all unifying below simplicity to be called for short SIM) obtained, obtains suitable network insertion After mandate, Mobile Communication Service can be used.In existing technology realizes, there is a SIM deck in the inside of mobile phone, work as SIM After card inserts the draw-in groove of deck, the contact of deck just establishes circuit connect with SIM, and the radio base band module of mobile phone just can reading SIM card In data, access cellular mobile communication networks.Interface between SIM and mobile phone is smart card one terminal device interface of standard, meets the world Standard ISO/IEC 7816 definition host-host protocol and ETSI TS 102 221,3GPP TS 31.102 grade definition telecommunications application protocol.Such Standard interface makes any one SIM can be inserted into the use of any one mobile phone, facilitates user's selection to using mobile phone.But user During using mobile phone, SIM needs to be permanently affixed to interior of mobile phone, and by the exclusive use of a mobile phone.
Along with the development of technology of Internet of things technology and carrying out of internet of things service, increasing internet of things equipment has also accessed cellular mobile communications networks Network, the communication between internet of things equipment is referred to as M2M communication (Machine to Machine).So, mobile communication is the most not only only intended to people Communication between, mobile communication terminal device is the most not only mobile phone, also includes the internet of things equipment having access to cellular mobile communication networks. For simplicity, in the present invention, the most all they unified abbreviation mobile communication terminals, (they are all by accessing cellular mobile communication networks And set up what network connected).
The internet of things equipment of access cellular mobile communication networks is also required to a SIM and equipment is carried out identity, in order to obtain mobile radio communication The authentication of network and insertion authority.For internet of things equipment, in addition to can using traditional moveable independent SIM the same with mobile phone, Embedded SIM card (eSIM/eUSIM, embedded SIM/USIM) can also be used.Embedded SIM card and the physical electrical of terminal unit It is the same for connecting with traditional removable independent SIM, and only embedded SIM card is to be fixed on including equipment in the manufacture process of equipment Portion, it is impossible to be enough easily replaced by between different devices.The such design of embedded SIM card can preferably adapt to different use environment, example As in vehicle environment, anti-shake performance is more preferable.On the other hand, mobile communication carrier can also wirelessly, and long-range is more newly embedded Data (remote provisioning) within formula SIM so that the network data (operator profile) of multiple operators may be stored in In same embedded SIM card.User is changing Mobile Communication Service offer when, it is only necessary to reconfigure the data of SIM, so that it may To select between multiple operators very easily and to change, without as traditional mobile phone, physically change SIM.Because it is embedding Entering convenience and the motility of formula SIM, mobile phone particularly smart mobile phone the most more and more uses embedded SIM card.Embedded SIM card Ins and outs are in relevant international technical norms, and such as ETSI TS 102 671 etc. has detailed definition.
The most traditional removable independent SIM is also integrally fixed at the embedded SIM card of device interior, and their function is the same, mainly There are two kinds of functions.First function is the identity effect of mobile subscriber's (including internet of things equipment).It is to say, SIM has one only The reference number of one identifies SIM itself, thus the mobile service use that mark is associated with this SIM so that the use of mobile service all by Correctly authorize and charging.Owing to this identity is very important to the use of mobile service, identity in addition to being unique, or The most modifiable.Second function is the effect of identification authentication certification so that mobile communication terminal is to have safely to access and the use of mobile network Effect.That is, it is to be ensured that the identity that SIM is identified is true and reliable rather than false identity.This identity true Property typically by the KI being only shared between mobile communications network and SIM and cryptographic algorithm, and carry out problem and address inquires to an answer response Mode guarantees.Because the function of SIM is very important for network security and business use safety, the therefore function of SIM Jointly realized by special hardware module and software function module corresponding with this specialized hardware rather than the most only pass through software merit Can, on general hardware, the software function module with other is shared hardware and is realized its function.The such implementation of SIM has substantially ensured that SIM The verity of the identity of card and the safety of identification authentication certification.
At mobile communication terminal in use, in order to keep the connection with network, SIM becomes together with needing all the time with mobile communication terminal It is that a complete indivisible subscriber equipment entirety is for user.Mobile communication terminal can only use the SIM being fixed therein (to insert The packaged type independence SIM of SIM card slot or the embedded SIM card being fixed therein), and SIM also can only be by this mobile communication Terminal is exclusive to be used.Connection between SIM and mobile communication terminal is that fixing circuit connects, and the data exchange between them is a kind of cable modem The mode of letter.Although the carrier network data in embedded SIM card can be changed or multiple carrier network data coexist, but this use It is fixing one-to-one relationship that mode limits between SIM and mobile communication terminal.It practice, the major function of SIM is mobile communication A kind of relation between Service User and mobile communication service provider, when mobile communication user need change mobile communication service provider or When changing the different COS of same mobile communication service provider, just change a different SIM or update in embedded SIM card The carrier network data in face, it doesn't matter with concrete mobile communication terminal device.Therefore, for mobile communication terminal, by other Mode, it is possible to using one the simplest, convenient, mode uses the data access cellular mobile communication networks of SIM flexibly, and not having must Fixing one-to-one relationship set up by the SIM of physical aspect that will be fixing with one.
In Chinese invention application 201410653530.6 " a kind of portable UICC card subscriber terminal equipment and identity authorization system thereof ", disclose A kind of new wireless communication interface between UICC card and card reader so that during card reader user ID data in reading UICC card, permissible Use the wireless communication interface between them, thus avoid the contact contacting type communication between them.So, in user uses business procedure, UICC card and card reader can be physically separated, and are very easy to user's use to mobile service such as mobile communication, mobile finance etc..Therefore, For mobile communication terminal, it is possible to use this wireless UICC coffret, use other SIM data access cellular mobile communication Network rather than be confined to simply use the SIM being fixed therein.This mobile communication terminal unrestricted choice uses the mode of SIM data It is very easy to user's use to mobile service.
In Chinese invention application 201510830053.0 " a kind of Waist watch type mobile phone with wireless SIM transfer function ", disclose a kind of shared hands The method of the SIM data in table mobile phone.Have by increasing by one between the SIM interface of mobile phone wireless baseband module and SIM deck Microcontroller (MCU, the Micro-Controller Unit) module of radio communication function so that lead to not affecting the original cellular radio of Waist watch type mobile phone In the case of telecommunication function, other mobile phone can also remotely use SIM in Waist watch type mobile phone to access honeybee by the wireless communication interface of microcontroller Cellular mobile communication network.In this case, micro controller module is equivalent to the access server of SIM data, in multiple mobile communication The data of same SIM are used to time division multiplex (TDM, Time Division Multiplexing) between terminal.Equally, for having embedding The mobile communication terminal of formula SIM, it is also possible to pass through wireless communication interface so that other other mobile communication terminal can also use and wherein embed The data of formula SIM, access cellular mobile communication networks.
The main object of the present invention is exactly open a kind of mobile communication terminal device, and this mobile communication terminal device has embedded SIM card, except tool Have outside the function of common mobile communication terminal embedded SIM card, also there is a new radio communication function module so that embedded SIM card Data have wireless transmission function.By being wirelessly transferred of embedded SIM card data, other mobile communication terminal can remotely use embedded The data access cellular mobile communication networks of SIM.So, although be fixed on the embedded SIM card within mobile communication terminal can not be as tradition Packaged type independence SIM such, pull out from an equipment and be inserted into other equipment and use, but it can pass through wireless communication interface It is supplied to other mobile communication terminal devices use.Same embedded SIM card, in addition to can being used by a mobile communication terminal itself, also may be used Use to share with other mobile communication terminal.This shared use be different mobile communication terminal time-slotting sections use same embedding respectively Formula SIM, on arbitrary time point, embedded SIM card remains by the exclusive use of some mobile communication terminal, only can pass through Wireless communication interface, switches between different mobile communication terminals rapidly.In macroscopical experience of user, due to the time of this switching The shortest, just look like that a SIM is used independently is the same for each mobile communication terminal.
On the other hand, by the radio communication function module of the present invention, mobile communication terminal can also be without using the embedded SIM card being fixed therein, And by its wireless communication interface, remotely use other SIM data access cellular mobile communication networks.Under this occupation mode, channel radio Telecommunication function module itself is in addition to the function being wirelessly transferred and receiving with data, and for mobile communication terminal, it also has SIM Function, the SIM data only used are all to obtain from other SIM by the way of radio communication.Mobile communication terminal is come Say, just look like directly to use other SIM the same.So, mobile communication terminal just being changed without SIM or can reconfigure embedding In the case of the data of formula SIM, it is possible to use other SIM data access cellular mobile communication networks, be very easy to user couple The use of mobile communication business.
The mobile communication terminal of the present invention uses both modes of SIM data, is effectively equivalent to make the embedded SIM of mobile communication terminal Card is in two states, i.e. server end state and client state.When embedded SIM card is in server end state, be fixed therein is embedding Enter formula SIM data in addition to for mobile communication terminal the machine, it is also possible to for other mobile communication terminal.Embedded SIM Ka Chu When client state, mobile communication terminal the machine does not the most use the embedded SIM card data being fixed therein, and uses other SIM number According to.The invention also discloses an embedded SIM card controller of mobile communication terminal so that mobile communication terminal can be according to the different need used Want, switch between these two states, even more so that embedded SIM card is operated in both states simultaneously.When mobile communication terminal the machine is being passed through While wireless communication interface uses other SIM data, it is also possible to the embedded SIM card data being fixed therein wirelessly are shared with it Its mobile communication terminal uses.
Summary of the invention
For the common mobile communication terminal with embedded SIM card, at its radio base band, (baseband connects cellular mobile communications networks The communication function module of network) SIM interface, have a permanent circuit to be connected to embedded SIM card.Embedded SIM card is with the most only Vertical SIM has identical electric interfaces and communication protocol interface, and in addition to some management function is different, (operator supported by embedded SIM card The wireless remote write of data and the selection of multiple carrier data), for the radio base band module of mobile communication terminal, it is all with identical side Formula uses the data access cellular mobile communication networks in SIM.Therefore, mobile communication terminal need not be concerned about its radio base band module and SIM The connected mode of card, and be only concerned and whether can obtain correct SIM data timely and effectively.
The radio base band module of the mobile communication terminal of the present invention is not directly to be connected with embedded SIM card, as it is shown in figure 1, at radio base band mould Between block and embedded SIM card, there is a microcontroller.It is to say, microcontroller is to connect between radio base band module and embedded SIM card The bridge connect, for radio base band module, microcontroller is exactly a SIM, for embedded SIM card, micro-control Device processed is exactly a SIM card reader (the SIM interface of radio base band module).Between radio base band module and embedded SIM card all of Data exchange, and may pass through the transparent forwarding of microcontroller, just look like there is not microcontroller between them and as direct circuit connects.Except this Outside, this microcontroller is also attached to the SIM controller of wireless communication interface and mobile communication terminal, jointly completes function of the present invention.Figure Microcontroller in 1 is functional module and the connection between them of the present invention, has a following function:
1. microcontroller is connected to the embedded SIM card of mobile communication terminal, as the card reader of a complete function, controls embedded SIM card All behaviors.Activate and deexcitation including card, initiate control command to embedded SIM card and start a card command session cycle, Read the embedded SIM card reply response data to control command.Also include some other condition that embedded SIM card runs, as to Embedded SIM card is powered, and exports clock signal, sends reset signal etc..At embedded SIM card, microcontroller is the most completely Being equal to radio base band Module SIM card interface, the behavior on itself does not has any impact.
2. microcontroller is connected to the radio base band Module SIM card interface of mobile communication terminal, as the SIM of a complete function, responds nothing All control commands that line baseband module is initiated to SIM.Including reading the SIM life that radio base band Module SIM card interface is initiated Make session and carry out order replying response, also including the control signal such as clock signal reading other, reset signal etc. and to control Signal reply response accordingly.At radio base band Module SIM card interface, microcontroller is just fully equivalent to a SIM, its Behavioral pattern and to be directly connected in SIM be living.
3. microcontroller is connected to wireless communication interface so that microcontroller can be wireless communication interface as a SIM control command interface. Microcontroller can send SIM control command to wireless communication interface, it is also possible to is received SIM control by wireless communication interface The reply response data of order, it is thus achieved that mobile communication terminal accesses SIM internal data necessary to cellular mobile communication networks.Certainly, Microcontroller to wireless communication interface sends SIM control command when, and directly to embedded SIM card transmitting control commands be not The same, what some were additional be wirelessly transferred control data can be superimposed upon on SIM control command, to increase be wirelessly transferred reliable Property.At the receiving terminal of wireless communication interface, what these were additional be wirelessly transferred control data was removed before sending SIM to, and only Direct card command data are had to be transferred to SIM.Its main purpose is that microcontroller can obtain SIM by wireless communication interface Internal data, and the transformat of control command can be shielded by the receiving terminal being wirelessly transferred.
4. microcontroller is connected to mobile communication terminal SIM controller so that mobile communication terminal can use different SIM data access Cellular mobile communication networks.On the one hand SIM controller provides user to use interactive interface, and user can select to use mobile communication eventually Embedded SIM card within Duan, or by wireless communication interface, remotely use other SIM access cellular mobile communication Network.On the other hand, SIM controller, by microcontroller transmitting control commands, controls microcontroller when receiving radio base band mould During the SIM order session that block SIM interface is initiated, it is that this SIM order is sent to embedded SIM card or radio communication Interface, this just determines mobile communication terminal is to use embedded SIM card or remotely use other by wireless communication interface Data access cellular mobile communication networks in SIM.It addition, the data that SIM controller is also responsible for controlling embedded SIM card are accurate The standby interworking relevant with initial work, including with mobile communications network unit MNO (Mobile Network Operator), SM-DM (Subscription Manager Data Preparation) and SM-SR (Subscription Manager Secure Routing) Interface protocol, be all the indirect forwarding of microcontroller by the present invention, and then and embedded SIM cartoon letters complete.With nothing Radio base band Module SIM card interface is the same with the connection of embedded SIM card, although the connection between them is indirect by microcontroller It is connected, but microcontroller simply plays forwarding and the bridge beam action of a protocol message, for the both sides connected be all Bright, just look like as they are direct circuit connection.Certainly, the carrier data (operator profile) of embedded SIM card Initial work (remote provisioning) can not also pass through microcontroller, and passes through the logical of other interface with mobile communication terminal Letter data exchanges and completes.So, mobile communication terminal SIM controller simply controls the duty of microcontroller, e.g. The server end of SIM data or client, or mobile communication terminal is with embedded SIM card or other SIM number According to accessing cellular mobile communication networks.
Connection between microcontroller and the embedded SIM card of the present invention is that smart card one terminal unit of standard connects, and microcontroller is a terminal Equipment, and embedded SIM card is a smart card, has detailed circuit to connect definition in standard ETSI TS 102 221.Fig. 2 is the present invention Microcontroller and embedded SIM card between circuit linkage function figure, different according to embedded SIM card function in mobile communication terminals, In 8 contacts of embedded SIM card connect, C4, C6 and C8 are optional connections, for providing only what cellular mobile communication networks accessed The embedded SIM card of basic function, these 3 contacts can be connected to microcontroller.Remaining 5 connection is required connection, to keep The embedded SIM card of the present invention correctly works, and has following connection and a function:
1. power cathode GND connection (C5 contact) of embedded SIM card is connected to the power cathode of equipment, due to whole collaborative share power supply Negative pole GND, therefore C5 contact both can be directly connected to the power cathode of microcontroller, it is also possible to is connected to mobile communication terminal The power cathode of whole power supply supply, in actual product circuit plate design, can need flexible route according to design, to obtain Good equipment overall performance.
2. power supply supply positive pole VCC (C1 contact) of embedded SIM card is connected to the output interface of microcontroller, by microprocessor controls to The power supply supply of embedded SIM card.In the interface of smart card one terminal unit of standard, in order to avoid some uncertain states, Defining activation and the deexcitation time series of smart card, these time serieses define the electric tense of smart card, insert with smart card It doesn't matter for the sequential that mechanical contact during draw-in groove is set up.Although embedded SIM card is fixed on device interior, there is no the machinery of contact even When connect the process of foundation, but power to embedded SIM card and when all should observe this to embedded SIM card power-off A little standards.The power supply supply VCC interface of microprocessor controls embedded SIM card, with in accordance with defined in ISO/IEC 7816 standard The activation of smart card and deexcitation time series.
3. the data I/O interface (C7 contact) of embedded SIM card is connected to microcontroller, both can be as the delivery outlet of microcontroller so that Microcontroller can directly transmit control command or data to embedded SIM card, or forwards radio base band Module SIM card interface to embedding Enter control command or data that formula SIM sends.Can also be as the input port of microcontroller so that microcontroller can read embedding Enter the formula SIM reply response data to control command.At embedded SIM card, the function of microcontroller is exactly that a movement is led to The radio base band Module SIM card interface of letter terminal, the behavior of embedded SIM card self and it and a radio base band Module SIM card The order session interaction behavior of interface is the same.Embedded SIM card and a radio base band Module SIM card interface carry out order session It is transparent for carrying out order session with its data I/O interface with microcontroller, does not have any difference.
4. the clock signal clk interface (C3 contact) of embedded SIM card is connected to the output interface of microcontroller so that microcontroller is permissible Clock signal required when embedded SIM card provides it to run.For supporting the embedded SIM card of clock stop mode, simply Just needing to provide it clock signal SIM works when, other time can not export clock signal, so can save Save power consumption.The same with power interface, the offer of clock signal also has timing requirements, and microcontroller is in output clock signal Time, the activation of the smart card defined in ISO/IEC 7816 standard to be strictly observed and deexcitation time series.
5. the reset signal RST interface (C2 contact) of embedded SIM card is connected to the delivery outlet of microcontroller, for microcontroller at needs When to embedded SIM card send reset signal.Embedded SIM card electrically activates, the when of starting working, or mistake occurs When need to restart SIM by mistake, it is required for radio base band Module SIM card interface and sends a reset signal to SIM. Microcontroller just can substitute for radio base band Module SIM card interface, sends reset signal to embedded SIM card, restarts SIM Card starts the new card session cycle.
By the connection such as Fig. 2 and operation software function program in the microcontroller, functionally microcontroller inherently one of the present invention SIM card reader, just replaces radio base band Module SIM card interface and embedded SIM to stick into line command mutual in mobile communication terminal device, And process the embedded SIM card response reply data to this order the most further together with other functional module of mobile communication terminal device, Such as, it is data to be replied in response be transferred to the SIM interface of radio base band module or wireless communication interface and make to other mobile communication terminal With.
Connection between microcontroller and the radio base band Module SIM card interface of the present invention is also that smart card one terminal unit of standard connects, only The role of microcontroller becomes a smart card, and radio base band Module SIM card interface is a terminal unit.Owing to microcontroller itself is one Individual independent single-chip microcomputer, its operation needs power supply supply, so power supply supply interface VCC and GND of microcontroller is connected to mobile communication terminal The power supply of equipment.Power supply supply interface VCC and GND can be connected to the overall independent power supply interface of mobile communication terminal device, by moving Communication terminal device itself controls power supply supply, it is also possible to be connected to power interface VCC and GND of radio base band Module SIM card interface, with intelligence The mode that can block obtains power supply supply.When microcontroller obtains power supply at once, needing to meet smart card one terminal device interface in the way of smart card Electrical standard, such as, the model that when microcontroller runs, required voltage and current all must specify in the standard of smart card one terminal device interface Within enclosing.Except power interface, microcontroller also has other interface to be connected to radio base band Module SIM card interface, as it is shown on figure 3, these connect Mouth includes data input and output I/O interface, clock signal clk interface, reset signal RST interface totally three interfaces.Radio base band module SIM The program voltage VPP interface of card can connect, and directly does unsettled process.These interfaces have a following function:
1. the data I/O interface of radio base band Module SIM card interface is connected to microcontroller, both can read as the input port of microcontroller The data of radio base band Module SIM card interface, receive radio base band module and issue control command or the data of embedded SIM card.Also Can be as the delivery outlet of microcontroller so that microcontroller replys data can to radio base band module.In radio base band module, Exchanged by the data of the I/O interface with microcontroller, just instead of the data exchange with embedded SIM card data I/O interface so that Mobile communication terminal is obtained in that the SIM data accessed needed for cellular mobile communication networks.
2. the clock signal clk interface of radio base band Module SIM card interface is connected to the input port of microcontroller, is used for receiving radio base band mould The clock signal of block SIM interface.Existing SIM, in order to save power consumption, all supports clock stop mode, say, that Under normal conditions, the SIM interface of radio base band module does not has clock signal to export, only as the SIM of radio base band module When card interface and embedded SIM stick into row data exchange (referred to as one order session cycle), just output clock signal.Microcontroller Itself, as the single-chip microcomputer of an independent complete function, is that the clock signal that need not SIM interface just can be run.But by Before each order session sent of Waist watch type mobile phone, will first export clock signal, therefore when the clock signal of microcontroller CLK interface detects the when that radio base band module having clock signal to export, and just starts corresponding program, reads radio base band module and sends out Give the order session of embedded SIM card.Although it is to say, the clock signal of radio base band Module SIM card interface is not as micro- The clock input signal of controller and use, but it can trigger radio base band module and embedded as a driving event The order session cycle of SIM.
3. the reset signal RST interface of radio base band Module SIM card interface is connected to the input port of microcontroller, is used for receiving radio base band module The reset signal of SIM interface.When mobile communication terminal when startup accesses cellular mobile communication networks, be to its radio base band module SIM Card interface output reset signal, restarts SIM and starts working.Or mobile communication terminal is carrying out data exchange with SIM During, when needing to restart SIM due to mistake, also to export a reset signal.When microcontroller detects radio base band mould During block output reset signal, just reply to radio base band module reset at its data I/O interface and reply response (ATR, Answer To Reset).So making in radio base band module, response is replied in the replacement that just have received SIM, can proceed and SIM The data exchange of card.It is to say, microcontroller replaces embedded SIM card to respond the reset signal of radio base band module completely, and Reset signal need not be made to arrive embedded SIM card, only start to start or run to be needed to restart by mistake when embedded SIM card Time, microcontroller, as the card reader role of a complete function, sends reset signal to embedded SIM card on one's own initiative.
Being connected by the direct circuit of microcontroller and radio base band Module SIM card interface the corresponding interface, microcontroller comes relative to radio base band module Say, it is simply that a Full Featured SIM.Although the authentication of the relevant mobile communication subscriber that microcontroller itself stores in not having SIM With the data of authentication, but it can by with the interface of embedded SIM card and read its related data and reply to Waist watch type mobile phone, or pass through nothing Line communication interface obtains the authentication of mobile communication subscriber and the data of authentication from other SIM.And such a process is for radio base band mould Time for block transparent, be it institute ignorant.So, the function of microcontroller is just that instead of SIM, and radio base band module carries out order meeting The data exchange in words cycle.
The mobile communication terminal SIM controller of the present invention as a functional module, can be mobile communication terminal application processor (AP, Application Processor) or the middle software function program module run of central processing unit (CPU, Central Process Unit), also A separate hardware functional module under mobile communication terminal control can be made.It can be that microcontroller is supported with the connection of microcontroller The such as serial communication of some data communication interfaces, I2C bus communication interface etc., it is also possible to be microcontroller GPIO mouth (universal input/output interface, General Purpose Input/Output), its main purpose is to microcontroller transmitting control commands, completes following function:
1. send order to microcontroller so that it is all by embedded that mobile communication terminal accesses the SIM data of cellular mobile communication networks SIM obtains.Microcontroller, as the connection equipment of radio base band module and embedded SIM card, simply counts between which According to receiving and forwarding effect, receive the data of the SIM interface of radio base band module and be transmitted to embedded SIM card, also receiving simultaneously The data of embedded SIM card are also transmitted to the SIM interface of radio base band module.Microcontroller data receiver and forward during, Uniquely be necessary to ensure that is that data forward the time delay of transmission and transmission error will meet smart card host-host protocol ISO/IEC 7816 Standard, so, is just directly connected in embedded SIM card with radio base band module the same.Microcontroller is in this operating mode, same Time be in server end and the client of SIM data.As the server end of SIM data, send control to embedded SIM card System order, reads the data accessing the authentication needed for cellular mobile communication networks with authentication, it is provided that use to mobile communication terminal. As the client of SIM data, reply the control command of response radio base band Module SIM card interface, and provide needs when SIM authentication and the data of authentication so that mobile communication terminal has access to cellular mobile communication networks.
2. send order to microcontroller so that it is all to pass through radio communication that mobile communication terminal accesses the SIM data of cellular mobile communication networks Interface, remotely obtains from other SIM.In this operating mode, microcontroller is in the client of SIM data, For radio base band module, it is simply that a complete SIM.In order to reduce the volume of transmitted data of wireless communication interface, microcontroller When device responds the control command of radio base band module as the role of a SIM, only those must be from the internal numbers obtained of SIM According to, the operation result data of such as authentication arithmetic, just remotely obtained from other SIM by wave point, and those can be direct The data read out from SIM, such as ICCID (the identity ID data of IC-card), IMSI (mobile communication subscriber world body Number evidence) etc., can be obtained by wave point initialized time and be stored in the memorizer of microcontroller.When again needing The when of these data, just from the memorizer of microcontroller, directly read out to reply the control command of radio base band module, and not Need remotely to be obtained from other SIM by wave point, while decreasing the volume of transmitted data of wireless communication interface, also subtract Lack the time delay of microcontroller response radio base band module control command.
3. send order to microcontroller so that microcontroller is in the server end state of SIM data, read the data of embedded SIM card, And by wave point, remotely provide SIM data to use to other mobile communication terminal, access cellular mobile communication networks. Equally, the data that can directly read out from embedded SIM card for those, such as ICCID (the identity ID data of IC-card), IMSI (mobile communication subscriber international identity data) etc., can be stored in the memorizer of microcontroller, needs when the most directly Read from memorizer, decrease the number of times in order session cycle between microcontroller and embedded SIM card, it is also possible to return faster The wireless SIM request of data of complex response far-end.
4. send order to microcontroller so that microcontroller may operate in the combination of several duty.Such as, microcontroller can be from embedding Enter formula SIM and read the data of authentication and authentication, except connecting interface by the wire circuit with radio base band module, for this Bright mobile communication terminal accesses outside cellular mobile communication networks, it is also possible to by wireless communication interface, the long-range shifting being supplied to other Mobile communication terminal accesses cellular mobile communication networks.So, multiple mobile communication terminal time division multiplexes same embedded SIM card data Access cellular mobile communication networks, use different mobile communication terminals to provide more convenient and free for user.Microcontroller also may be used With while providing embedded SIM card data to use to other mobile communication terminal by wireless communication interface, also by radio communication Interface, remotely can be obtained SIM data from other SIM, and be connected by the wire circuit with radio base band module, transmission Use to radio base band module, make mobile communication terminal access cellular mobile communication networks.So, mobile communication terminal itself and other Mobile communication terminal use different SIM data access cellular mobile communication networks respectively, but they are all micro-by the present invention Controller obtains SIM data.
The wireless communication interface of the present invention can be a single functional module, it is provided that the wireless transmission function of data communication, by and microcontroller Data communication interface, microcontroller just can with wireless receiving and launch data.These single communication function modules can be to utilize mobile communication eventually Hold existing radio communication function, the most short-range WLAN (WLAN, Wi-Fi), bluetooth (Bluetooth) etc., it is also possible to be short The radio communication of distance and the combination of wire communication.Even cellular mobile communication is originally before user uses concrete mobile service, it is also possible to made For obtaining authentication and the authentication information of SIM, after by the authentication of cellular mobile communication networks, reoffer concrete mobile service clothes Business.The function of the wireless communication interface of the present invention can also be provided by a microcontroller with radio communication function, in existing market, has Many SOC(system on a chip) (SoC, System on Chip) chips just have such function.Such as, the bluetooth SOC(system on a chip) core of Norway Nordic company Sheet nRF51822 is exactly such a microcontroller, and this on-chip system chip has an ARM Cortex M0 as central processor core, Also there is the wireless communication interface of 2.4G.So, microcontroller inherently can provide wireless communication interface, it is provided that the wireless of SIM data connects Receive and launch.Wireless communication interface is used for when remotely obtaining or provide of SIM data, and the time delay that it is wirelessly transferred needs to control in intelligence In the range of energy card transmission standard ISO/IEC 7816 regulation.
As the card reader of embedded SIM card, microcontroller after obtaining power supply supply, just runs software function program therein, reads SIM The data that those within Ka can be read by external equipment, are stored in the memorizer of microcontroller.These SIM data of needs when, Microcontroller just directly reads from its memorizer, decreases mutual with the control command of embedded SIM card.Fig. 4 is that the microcontroller of the present invention obtains The flow chart of these characteristics of SIM, comprises the steps of:
1. microcontroller is obtaining power supply supply, runs software function program therein.
2. electrically activate sequential on the smart card that microcontroller specifies according to ISO/IEC 7816 standard, provide power supply supply to embedded SIM card, time Clock signal, reset signal, upper electrical activation embedded SIM card.
3. microcontroller is by the data I/O interface with embedded SIM card, and that reads embedded SIM card resets back to complex data ATR (Answer To Reset), it is stored in the memorizer of microcontroller.
4. microcontroller resets back to complex data content according to read, microcontroller can also and embedded SIM card between have protocol parameter to select Select process PPS (Protocol Parameter Selection), complete the initialization procedure of embedded SIM card.
5. microcontroller is as the role of a card reader, to embedded SIM card transmitting control commands, the data of reading SIM card.These data The embedded SIM card internal data that can be read by external equipment including which, and these data be mobile communication terminal access honeycomb Data required for mobile communications network, such as ICCID (the identity ID data of IC-card), IMSI (mobile communication subscriber world body Number evidence) etc., also include the network parameter of mobile communication carrier, help mobile communication terminal search and access cellular mobile communications networks Network.
6. microcontroller is the embedded SIM card internal data store read in its memory so that these data become the basis of microcontroller Ground data, when these data of needs are to avoid the need for again reading from embedded SIM card.
7. microcontroller completes the initialization of embedded SIM card data, as the server end of SIM data, prepares to provide SIM data To mobile communication terminal.
When microcontroller is by the connection with radio base band Module SIM card interface, as the role of a SIM, provide to mobile communication terminal During SIM data, if using the data of embedded SIM card, then complete mobile communication terminal by flow process as shown in Figure 5 and access honeycomb The process of mobile communications network, includes following steps:
1. microcontroller monitoring wireless baseband module SIM interface, waits the clock signal of CLK interface to be received.If receiving radio base band mould The clock signal of block, it is meant that radio base band module starts to initiate a SIM order session cycle, microcontroller starts and wireless The data I/O interface of baseband module SIM interface, resets RST interface, reads the output signal of these interfaces.
2. microcontroller if be detected that and the reset signal of replacements RST interface of radio base band Module SIM card interface, just pass through and radio base band The data I/O interface of module, replies to one, radio base band Module SIM card interface and replys replacement data.The data replied are stored in In the memorizer of microcontroller, previously read from the data I/O interface of embedded SIM card, included the basic of embedded SIM card The various layout characters (characters of 8 bit lengths) of information.
3. microcontroller resets after data from the beginning of the 1st step replying, the clock signal clk of monitoring wireless baseband module SIM interface again Interface, waits clock signal next time.
4. microcontroller is without the reset signal of the replacement RST interface detected with radio base band Module SIM card interface, just by with wireless The data I/O interface of baseband module, reads radio base band Module SIM card interface and issues the control command data of embedded SIM card.
5., after microcontroller reads SIM control command, according to the type of this control command, obtain this control command from different places Reply response data.
If 6. the reply response data of SIM control command can directly read out from embedded SIM card, such as file select command (control System order 0xa4), or the content (control command 0xb0) etc. of reading binary data file, these data are at embedded SIM card Initialization procedure in read out and be stored in the memorizer of microcontroller from embedded SIM card, microcontroller is the most directly From its memorizer, read these data and reply to radio base band module, then from the beginning of the 1st step, monitoring wireless base band mould again The clock signal clk interface of block SIM interface, waits clock signal next time.
7. if the reply response data of SIM control command just can only be obtained by internal operating program in embedded SIM card, such as, reflect Power order (control command 0x88), microcontroller is just the input parameter required for this control command and embedded SIM card operation program (random number sequence needed for such as running authentication order) is sent to embedded SIM card.
8. the microcontroller clock CLK interface by embedded SIM card, exports clock signal, the frequency of clock signal to embedded SIM card In the scope that ISO/IEC 7816 standard specifies.
9. the microcontroller data I/O interface by embedded SIM card, forwards to embedded SIM card and reads from radio base band Module SIM card interface Take the control command of reading and run the input data required for this control command.
10. microcontroller waits that the reply of control command is responded by embedded SIM card, and starts a waiting time timer.
If 11. wait time-out, microcontroller just stops exporting clock signal to embedded SIM card, terminates and the data exchange of embedded SIM card.
12. microcontrollers, by the data I/O interface with radio base band module, reply the error message of " SIM data read errors " to nothing Line baseband module.
13. microcontrollers, after reply mistake gives radio base band module, terminate the session cycle of this control command, from the beginning of the 1st step, again supervise Listen the CLK clock interface of radio base band module, wait clock signal next time.
If 14. wait that being not timed-out embedded SIM card just has reply response data, the microcontroller data I/O interface by embedded SIM card, Read the embedded SIM card reply response data to control command.
15. microcontrollers are by the data I/O interface with radio base band module, to the reply number of responses of radio base band module forwards embedded SIM card According to.
16. microcontrollers stop exporting clock signal to embedded SIM card, terminate and the data exchange of embedded SIM card.
17. microcontrollers are from the beginning of the 1st step, and the clock signal clk interface of monitoring wireless baseband module, waits clock signal next time again, Start the session cycle of a new SIM control command.
Equally, microcontroller can also be by the connection with radio base band Module SIM card interface, as the role of a SIM, to mobile logical Letter terminal provides SIM data to make it access cellular mobile communication networks.Only SIM data are all by wireless communication interface, remotely Ground obtains from other SIM.Before using SIM data, microcontroller can pass through wireless communication interface, remotely reads other SIM Which all data that can be read by external equipment in card, storage is in its memory.When these data of needs when, microcontroller is the most permissible Directly read from its memorizer and reply radio base band module, it is not necessary to remotely being obtained by wireless communication interface from other SIM again.Depositing In reservoir, the local backup copy of multiple different SIM data can be preserved, and with the identity parameter of SIM, such as ICCID, IMSI Deng the SIM data parameters collection that mark is different.
Fig. 6 is microcontroller and the wireless communication interface that mobile communication terminal passes through the present invention, remotely obtains other SIM data access honeycomb and moves The flow chart of dynamic communication network, includes following steps:
1. microcontroller passes through wireless communication interface, it is thus achieved that the ICCID of the remote sim card that will use (or IMSI etc. can uniquely identify The reference number of this SIM).
2. whether there is during microcontroller checks its memorizer the backup copy of these SIM data of No. ICCID, if it did not, just by wireless Communication interface, reads all data that can be read by external equipment of this SIM, and storage in memory, waits to be used, and supervises Listen radio base band Module SIM card interface, wait the clock signal of CLK interface to be received.If receiving the clock letter of radio base band module Number, microcontroller starts and the data I/O interface of radio base band Module SIM card interface, resets RST interface, reads these interfaces Output signal.
If 3. having the backup copy of these SIM data of No. ICCID in the memorizer of microcontroller, microcontroller is with regard to direct monitoring wireless base Band Module SIM card interface, waits the clock signal of CLK interface to be received.If receiving the clock signal of radio base band module, just meaning Taste radio base band module and is started to initiate a SIM order session cycle, and microcontroller starts and radio base band Module SIM card interface Data I/O interface, reset RST interface, read the output signal of these interfaces.
4. microcontroller if be detected that and the reset signal of replacements RST interface of radio base band Module SIM card interface, just pass through and radio base band The data I/O interface of module, replies to one, radio base band Module SIM card interface and replys replacement data.The data replied are stored in In the memorizer of microcontroller, previously passed wireless communication interface excessively obtains from the SIM used, and includes the basic letter of SIM The various layout characters (characters of 8 bit lengths) of breath.
5. microcontroller resets after data from the beginning of third step replying, the clock signal clk of monitoring wireless baseband module SIM interface again Interface, waits clock signal next time.
6. microcontroller is without the reset signal of the replacement RST interface detected with radio base band Module SIM card interface, just by with wireless The data I/O interface of baseband module, reads radio base band Module SIM card interface and issues the SIM control command data sent.
7., after microcontroller reads SIM control command, according to the type of this control command, obtain this control command from different places Reply response data.
If 8. the reply response data of SIM control command is those data that can directly read out from SIM, such as file selects Order (control command 0xa4), or read the content (control command 0xb0) etc. of binary data file, these data are at micro-control Device processed is obtained by wireless communication interface in the initialization procedure of these SIM data, and is stored in the memorizer of microcontroller. Microcontroller just directly reads these data from its memorizer and replies to radio base band module, then from the beginning of third step, again The clock signal clk interface of monitoring wireless baseband module SIM interface, waits clock signal next time.
If 9. the reply response data of SIM control command can only be by just obtaining, such as at other SIM internal operating program of far-end Authentication order (control command 0x88), microcontroller is just this control command and the input parameter (example run required for this control command As run the random number sequence needed for authentication is ordered) by wireless communication interface, it is wirelessly transferred and gives this SIM.
10. microcontroller passes through wireless communication interface, waits the reply response data of SIM control command to be received, and starts a waiting time meter Time device.
If 11. wait time-out, microcontroller just stops being received back to complex response data by wireless communication interface,
12. microcontrollers, by the data I/O interface with radio base band module, reply the error message of " SIM data read errors " to nothing Line baseband module, terminates and the session cycle of this SIM control command.
13. microcontrollers are after reply mistake gives radio base band module, from the beginning of third step, again monitor and the CLK clock of radio base band module Interface, waits clock signal next time.
If 14. wait that be not timed-out microcontroller just receives the reply response data of SIM control command, microcontroller by wireless communication interface Device is by the data I/O interface with radio base band module, the reply response data received to radio base band module forwards.
15. microcontrollers stop receiving data by wireless communication interface, terminate and the session cycle of this SIM control command.
16. microcontrollers are from the beginning of third step, and the clock signal clk interface of Monitor detection and radio base band module, waits clock next time again Signal, starts the session cycle of a new SIM control command.
By the microcontroller of the present invention, mobile communication terminal can selectively use the embedded SIM card data access cellular mobile communication of himself Network, it is possible to use other SIM data access cellular mobile communication networks, and other SIM data are wireless by the present invention Communication interface obtains.So, mobile communication subscriber just can select different mobile communication carriers or same shifting convenient and freely The different mobile communication service content of dynamic common carrier.
By the embedded SIM card of the microcontroller of the present invention, mobile communication interface and mobile communication terminal, it is also possible to the mobile communication for other is whole End provides SIM data so that other mobile communication terminal can access honeycomb move with the data using embedded SIM card of wireless remote Communication network.Fig. 7 is that microcontroller passes through wireless communication interface, remotely provides the stream of embedded SIM card data to other mobile communication terminal Cheng Tu, includes following steps:
1. microcontroller passes through wireless communication interface, provides SIM data to other mobile communication terminal wireless remote, these SIM numbers According to be microcontroller when the initialization of embedded SIM card data, by flow process as shown in Figure 4, from embedded SIM card read Data, these data include those all data that can be read by external equipment.
2. microcontroller passes through wireless communication interface, wait SIM control command that other mobile communication terminal to be received is wirelessly transferred or The input data of control command, the reply response data of these control commands needs to run SIM program at embedded SIM card and could obtain Arrive, such as, authenticate order (0x88).
3. microcontroller receives SIM control command or the input data of control command that other mobile communication terminal is wirelessly transferred After, first pass through the clock CLK interface with embedded SIM card, provide clock signal, the frequency of clock signal to embedded SIM card Rate is in the range of ISO/IEC 7816 standard specifies.
4. microcontroller is by the data I/O interface with embedded SIM card, forwards the control received from wireless communication interface to embedded SIM card System order or the input data of control command.
5. microcontroller waits the program operation result of embedded SIM card, and starts a waiting timer.
6., if waiting that time-out microcontroller does not the most receive the embedded SIM card reply response data to control command, just stop to embedded SIM provides clock signal, terminates and the data exchange of embedded SIM card.
7. microcontroller passes through wireless communication interface, transmits the error message of a SIM data acquisition to other mobile communication terminal, and ties Restraint the session cycle of this SIM control command.
8. microcontroller second step starts, again monitoring wireless communication interface, waits the SIM that other mobile communication terminal to be received is wirelessly transferred The input data of card control order or control command.
9., if microcontroller just receives the embedded SIM card reply response data to control command without waiting for time-out, just connect by radio communication Mouthful, forward the reply response data of this control command, terminate the order session cycle.
10. microcontroller stops providing clock signal to embedded SIM card, terminates and the data exchange of embedded SIM card.
11. microcontroller second step start, monitoring wireless communication interface again, wait other mobile communication terminal to be received to be wirelessly transferred The input data of SIM control command or control command.
By flow process as shown in Figure 7, the microcontroller of the present invention just can radio to other mobile communication eventually embedded SIM card data End uses, and meanwhile, by the connection of the radio base band module with mobile communication terminal itself, embedded SIM card data can also be supplied to mobile logical Letter terminal itself uses.At wireless communication interface, embedded SIM card data can also be shared with multiple other different mobile communication terminal simultaneously and make With.So, embedded SIM card data are used by multiple mobile communication terminals with regard to time division multiplex, communicate with wireless including wired communication connection Interface, user can select to use between multiple mobile communication terminals easily.
For the function of the mobile communication terminal SIM controller of the present invention, if mobile communication terminal supports SIM application toolkit interface The function of (SAT, SIM Application Toolkit), it is also possible to by the SIM application toolkit interface of standard, utilize mobile communication terminal Existing human-computer interaction interface (MMI, Man-Machine Interface) sends SIM application program to the SIM interface of radio base band module Realize.All of SIM application program is all the data I/O interface by radio base band Module SIM card interface, and the SIM sending standard controls Order.In Chinese invention application 201510830053.0 " a kind of Waist watch type mobile phone with wireless SIM transfer function ", by SIM application journey Sequence realizes the control function of microcontroller detailed implementing.So, the microcontroller of the present invention avoids the need for other data communication interface even It is connected to mobile communication terminal SIM controller to realize the function of mobile communication terminal SIM controller, as long as by radio base band module SIM The SIM control command of the standard of the data I/O interface of card interface just can realize.Fig. 8 is that the microcontroller of the present invention passes through and radio base band mould The data I/O interface of block, the SIM application toolkit interface of application standard realizes the flow chart of the function of mobile communication terminal SIM controller, Include following steps:
1. the SIM data that mobile communication terminal is provided by microcontroller, these SIM data or embedded SIM card data, or Person is other SIM data of obtaining of wireless remote ground, accesses cellular mobile communication networks.
2. microcontroller is according to the function needs of mobile communication terminal SIM controller, arranges SIM application toolkit (SAT) marking variable, Identify microcontroller whether there are SAT data to need to be transferred to the radio base band module of mobile communication terminal.
3. the radio base band module of mobile communication terminal is passed through and the data I/O interface of microcontroller, reading SIM card running state information (status), The reading of this SIM running state information will be carried out when each SIM order session end cycle.
4. microcontroller reading SIM card application toolkit (SAT) marking variable.
5., if marking variable instruction microcontroller does not has SAT data to need to be transferred to the radio base band module of mobile communication terminal, microcontroller is just Replying radio base band module by data I/O interface, SIM running status is correct, such as recoil state data " 0x90,0x0 ".
6., if marking variable instruction microcontroller has SAT data needs to be transferred to the radio base band module of mobile communication terminal, microcontroller is just Replying radio base band module by data I/O interface, SIM has further data to be transferred to radio base band module, such as, replys shape State data " 0x91, XX ".
7. the radio base band module of mobile communication terminal pass through data I/O interface, to microcontroller send SIM data retrieval commands (fetch, 0x12), the data of SAT order are obtained.
8. microcontroller pass through data I/O interface, reply mobile communication terminal radio base band module SIM data retrieval commands (fetch, 0x12), the data of SAT order are sent to radio base band module.
9. microcontroller is according to the function needs of further mobile communication terminal SIM controller, resets or removes the 2nd) SAT of step Order indexed variable.
The effect of invention
The present invention is by increasing micro controller function module, wireless communication interface and mobile communication at the mobile communication terminal with embedded SIM card Terminal SIM controller, in the case of not affecting the function of mobile communication terminal own, uses SIM data more flexibly and conveniently.Mobile Communication terminal accesses cellular mobile communication networks except the authentication and authorization data that can use embedded SIM card, it is also possible to pass through radio communication Interface, remotely uses the authentication of other SIM and authorization data to access cellular mobile communication networks.Meanwhile, it is also possible to by wireless Communication interface, remotely provides the authentication of embedded SIM card and authorization data to other mobile communication terminal, moves logical in order to access honeycomb Communication network, it is thus achieved that Mobile Communication Service.So, although embedded SIM card is integrally fixed within mobile communication terminal, but mobile communication terminal Can select to use embedded SIM card or other SIM to access cellular mobile communication networks, and embedded SIM card data are except providing Use to mobile communication terminal itself, it is also possible to the mobile communication terminal being remotely supplied to other uses access cellular mobile communication networks.
Accompanying drawing explanation
Fig. 1 is functional module and the connection diagram thereof of the mobile communication terminal with embedded SIM card wireless data transmission function of the present invention.
Fig. 2 is the circuit linkage function figure between the microcontroller of the present invention and embedded SIM card.
Fig. 3 is the circuit linkage function figure between the microcontroller of the present invention and the radio base band Module SIM card interface of mobile communication terminal..
Fig. 4 is the flow chart of the embedded SIM card file system data parameter of the microcontroller acquisition mobile communication terminal of the present invention.
Fig. 5 is that the mobile communication terminal of the present invention is connected by the wire circuit between microcontroller and embedded SIM card, uses embedded SIM The flow chart of card data access cellular mobile communication networks.
Fig. 6 is that the mobile communication terminal of the present invention passes through microcontroller and wireless communication interface, remotely uses other SIM data access honeycomb to move The flow chart of dynamic communication network.
Fig. 7 is that the microcontroller of the present invention passes through wireless communication interface, remotely provides embedded SIM card data to other mobile communication terminal Flow chart, other mobile communication terminal can use embedded SIM card data access cellular mobile communication networks.
Fig. 8 is that the microcontroller of the present invention is come by the data I/O interface with radio base band module, the SIM application toolkit interface of application standard Realize the flow chart of the function of mobile communication terminal SIM controller.
Detailed description of the invention
The wireless transmission function of the embedded SIM card data of the present invention can increase corresponding software by the existing hardware module of mobile communication terminal Functional module realizes.Such as, the existing bluetooth of smart mobile phone, Wi-Fi etc. can realize the wireless communication interface of the present invention, operates in intelligence hands A software function program on machine application processor can realize the micro controller function etc. of the present invention.But, owing to SIM data are mobile logical Believing in safety extremely important, such implementation is accomplished by extra safety control function to guarantee the safety that SIM data are wirelessly transferred.? When smart mobile phone cell phone system becomes to become increasingly complex, this simple dependence software function guarantees that safety just becomes more difficult.Therefore, this reality Execute example just with an independent microcon-troller hardware module with radio communication function and operate in corresponding software program therein as example, for The concrete technology implementation mode of the bright present invention, to guarantee the safety that SIM data are transmitted.Because such detailed description of the invention ensure that the present invention Function there is relative independence, and the whole system of mobile communication terminal makes to be mutually isolated, and provides only the interface of necessity between them Data exchange.
Bluetooth SOC(system on a chip) (SoC, System on chip) the chip nRF51822 of Nordic company of Norway is exactly such a separate hardware module, Can be used to implement the function of the present invention.On-chip system chip nRF51822 supports the 2.4G radio communication of multi-protocols, including proprietary transmission Bluetooth 4.0 agreement of agreement and standard, user can also utilize its application programming interface to realize oneself to turn the employing wireless communication protocol that has.nRF51822 There is an ARM Cortex M0 and control kernel as it, can be at the C programmer of its control kernel operation standard.NRF51822 also has 31 can be with GPIO (General Purpose Input/Output, the universal input exports) interface of flexible configuration, according to different needs, configuration Become different use functions.Its UART, the data communication interface such as I2C, SPI flexible configuration can also become arbitrary GPIO mouth, for the reality of hardware Now provide conveniently.It addition, the supply voltage of on-chip system chip nRF51822 can be 1.8V-3.6V, such flexible power supply mode makes it Power supply supply can be obtained very easily from the power-supply management system of existing mobile communication terminal.
On-chip system chip nRF51822 can be embodied as the present invention according to such a way:
1. power supply supply.In the power-supply management system of existing mobile communication terminal, the most all providing the power supply supply of 2.8V, nRF51822 can Directly to use such power supply supply.On the other hand, nRF51822 directly can also obtain power supply from the lithium battery of mobile communication terminal Supply.Owing to the voltage of lithium battery is typically 3.6V-4.2V, beyond the supply voltage claimed range of nRF51822, the present invention's Concrete technology implementation in, additionally increase a regulated power supply functional module so that nRF51822 can obtain required power supply electricity Pressure.Although such embodiment adds a power regulator, but the power supply of nRF51822 does not just rely on mobile communication eventually The duty of end, even when mobile communication terminal is in off-mode, nRF51822 module is still within duty, other Mobile communication terminal can also use embedded SIM card data by nRF51822, accesses cellular mobile communication networks.
2. input/output interface.Can use any GPIO mouth in 31 GPIO mouths of nRF51822, and the present invention is as shown in Figure 1 Embedded SIM card, radio base band Module SIM card interface, mobile communication terminal SIM controller carries out circuit connection.Due to NRF51822 itself has radio communication function, and its radio communication function module is connected by system bus inside SOC(system on a chip). Radio base band Module SIM card interface needs 3 GPIO mouths to connect, i.e. data I/O interface (be configured to open-drain input pattern, Open-Drain), clock signal clk interface (is configured to input pattern), reset signal RST interface (being configured to input pattern). Connect with the circuit of embedded SIM card and be also required to 3 GPIO mouths and connect, i.e. data I/O interface (be configured to open-drain input pattern, Open-Drain), clock signal clk interface (is configured to output mode), reset signal RST interface (being configured to output mode). Wherein data I/O interface is configured to open-drain input pattern so that this interface both can serve as the input interface that SIM data forward, it is possible to The output interface forwarded for use as SIM data.Power interface (VCC) for embedded SIM card, it is also possible to directly use The GPIO of nRF51822, is configured to strong drive pattern (High Drive), to provide more electric current deliverability, improves system fortune The stability of row.Or control other power interface with a GPIO mouth to power, in this manner it is possible to control the electricity of SIM easily Source is supplied so that its activation and deactivation process disclosure satisfy that the electric timing requirements of smart card one terminal device interface.It addition, The data communication interface of nRF51822 and mobile communication terminal SIM controller can also use arbitrary GPIO mouth, it is only necessary to soft Part configures accordingly.So, the GPIO mouth of nRF51822 is used just can to realize all inputs of microcontroller of the present invention defeated Go out function, and arbitrarily can select to use from 31 GPIO mouths according to hard-wired convenience.
3. data storage.NRF51822 has the flash memories (flash) of up to 256K, in addition to depositing its program run, completely may be used With those all digital independent that can be read by external equipment in the basic file system of SIM out, preserve at flash memories A backup copy.Additionally nRF51822 can also use SIM some user data, such as telephone number and short message etc. Memorizer be stored directly in SIM.
4. software function.The ARM Cortex M0 of nRF51822 controls kernel can be with the C programmer of operation standard, the microcontroller of the present invention All functions of device, all can realize by operating in software function module thereon.Including as a Full Featured SIM Card Reader Device controls all working of embedded SIM card, replys response data to embedded SIM card transmitting control commands and reading, also includes making It is a Full Featured SIM, reads the control command of radio base band Module SIM card interface and send back complex response data, also including Control command, the input parameter of control command, reply response data and connect at radio base band module and embedded SIM card or radio communication The functions such as the forwarding between Kou, can realize by operating in the software function module controlling kernel of nRF51822.It addition, The function of mobile communication terminal SIM controller can also operate in ARM Cortex M0 by one and control the software journey on kernel Sequence, it is achieved concrete function controls.
5. wireless communication interface.The 2.4G wireless communication interface of nRF51822 may be used for the wireless communication interface of the present invention, either Nordic Company provide proprietary wireless transmission protocol or the bluetooth of standard 4.0 agreement can use.Its application programming interface can also be used (SDK, Software Development Kit) realizes special application communication agreement, and transmitting to the wireless forwarding of SIM data provides more Add convenient, flexible concrete technology to realize.
Functional realiey for the mobile communication terminal SIM controller of the present invention, it is also possible to by the SIM application toolkit interface of standard (SAT, SIM Application Toolkit), utilizes the existing human-computer interaction interface of mobile communication terminal (MMI, Man-Machine Interface) Send SIM application program to the SIM interface of radio base band module to realize.All of SIM application program is all by radio base band module The data I/O interface of SIM interface, sends the SIM control command of standard.In Chinese invention application 201510830053.0, " one has nothing The Waist watch type mobile phone of line SIM transfer function " in, the control function being realized microcontroller by SIM application program has detailed implementing.So, NRF51822 avoids the need for other data communication interface to realize the function of mobile communication terminal SIM controller, as long as by SIM interface The SIM control command of standard of data I/O interface just can realize.
Increase bluetooth on-chip system chip nRF51822 by the radio base band Module SIM card interface at mobile communication terminal, and operate in It controls the software program of kernel, it is possible to realize all functions of the present invention.Such detailed description of the invention simply may be used for the invention provides one The technical scheme of row, it is, of course, also possible to apply some other hardware and combination of software, under technological guidance's thought of the present invention, it is achieved the present invention's Function, for the selection that the use offer of user is convenient.

Claims (10)

1. a mobile communication terminal with embedded SIM card, it is characterised in that described mobile communication terminal is the SIM in its radio base band module Between the connection of card interface and embedded SIM card, increase a microcontroller, there is between them functional module as described below and connection,
1) the power interface positive pole VCC and negative pole GND of microcontroller is directly connected in the power supply supply interface of mobile communication terminal, it is thus achieved that micro-control The power supply supply that device processed is required when running,
2) embedded SIM card power interface negative pole GND is directly connected in the power-supply system negative pole GND of mobile communication terminal,
3) input/output interface of microcontroller is connected to the corresponding interface of mobile communication terminal radio base band Module SIM card interface, defeated including data Enter and export I/O interface, clock signal clk interface, reset signal RST interface totally three interfaces,
A) data I/O interface both can be as the input port of microcontroller so that microcontroller can read the wireless base of mobile communication terminal With the data of Module SIM card interface, receive mobile communication terminal and issue order or the data of SIM, it is also possible to as micro- The delivery outlet of controller so that microcontroller replys data can to the radio base band module of mobile communication terminal,
B) clock signal clk interface is the input port as microcontroller, for receiving radio base band module SIM of mobile communication terminal The clock signal of card interface,
C) reset signal RST interface is the input port as microcontroller, for receiving radio base band module SIM of mobile communication terminal The reset signal of card interface,
4) input/output interface of microcontroller is connected to the corresponding interface of embedded SIM card, supplies VCC interface including power supply, and data input Output I/O interface, clock signal clk interface, reset signal RST interface totally four interfaces,
A) power supply supply VCC interface is the delivery outlet as microcontroller, powers to embedded SIM card for control, meets SIM The activation of interface and the electric timing requirements of deactivation process,
B) data I/O interface both can be as the delivery outlet of microcontroller so that microcontroller can directly transmit control to embedded SIM card System order or data, or forward the control command that sends to embedded SIM card of radio base band module or data, it is also possible to make Input port for microcontroller so that microcontroller can read the embedded SIM card reply response data to control command,
C) clock signal clk interface is the delivery outlet as microcontroller, for required when embedded SIM card provides it to run Clock signal,
D) reset signal RST interface is the delivery outlet as microcontroller, resets for sending to embedded SIM card needs when Signal.
2. according to the microcontroller of mobile communication terminal as claimed in claim 1, it is characterised in that described microcontroller be also also attached to one wireless Communication interface, the function of described wireless communication interface is,
1) microcontroller passes through wireless communication interface, obtains the SIM card file system being stored therein from other SIM wireless remote Data,
2) microcontroller passes through wireless communication interface, is wirelessly transferred and forwards it to read from the radio base band Module SIM card interface of mobile communication terminal Input parameter required for SIM control command and the operation of SIM command program,
3) microcontroller passes through wireless communication interface, the reply response data of wireless receiving SIM control command, and is transmitted to mobile communication terminal Radio base band Module SIM card interface,
4) microcontroller passes through wireless communication interface, is wirelessly transferred the data of its SIM card file system read from embedded SIM card,
5) microcontroller passes through the input ginseng required for wireless communication interface, wireless receiving SIM control command and SIM command program run Number, and it is transmitted to embedded SIM card,
6) microcontroller passes through wireless communication interface, is wirelessly transferred the reply response data forwarding its control command read from embedded SIM card.
3. according to the microcontroller of mobile communication terminal as claimed in claim 1, it is characterised in that described microcontroller is wireless at mobile communication terminal Between SIM interface and the embedded SIM card of baseband module, at the SIM interface of mobile communication terminal radio base band module with such as right Require, between the wireless communication interface described in 2, between wireless communication interface as claimed in claim 2 and embedded SIM card, to forward them Between data exchange so that data forward time delay and transmission error all in the range of SIM application protocol.
4. according to the microcontroller of mobile communication terminal as claimed in claim 1, it is characterised in that described microcontroller is also attached to a movement and leads to Letter terminal SIM controller, described mobile communication terminal SIM controller, to described microcontroller transmitting control commands, controls described micro-control The duty of device processed, including,
1) order is sent to microcontroller so that it is all by embedded that mobile communication terminal accesses the SIM data of cellular mobile communication networks SIM obtains,
2) order is sent to microcontroller so that it is all to be wanted by such as right that mobile communication terminal accesses the SIM data of cellular mobile communication networks Seek the wireless communication interface described in 2, remotely obtain from other SIM,
3) send order to microcontroller, read the data of embedded SIM card, and by wave point, remotely provide SIM data to Other mobile communication terminal uses, and accesses cellular mobile communication networks,
4) order is sent to microcontroller so that while mobile communication terminal uses embedded SIM card data access cellular mobile communication networks, Embedded SIM card data are remotely provided to make to other mobile communication terminal also by wireless communication interface as claimed in claim 2 With,
5) order is sent to microcontroller so that mobile communication terminal remotely uses other by wireless communication interface as claimed in claim 2 SIM data access cellular mobile communication networks while, remotely carry also by wireless communication interface as claimed in claim 2 Other mobile communication terminal is given for embedded SIM card data.
5. according to microcontroller as claimed in claim 1, it is characterised in that described microcontroller passes through the connection between embedded SIM card, to Embedded SIM card transmitting control commands, reads the file data of embedded SIM card file system, is stored in the memorizer of described microcontroller In, the reading of described file data is carried out as follows,
1) microcontroller is obtaining power supply supply, runs software function program therein,
2) microcontroller is according to electrically activating sequential on smart card, provides power supply supply, clock signal, reset signal to embedded SIM card, powers on Activate embedded SIM card,
3) microcontroller is by the data I/O interface with embedded SIM card, and that reads embedded SIM card resets back to complex data ATR (Answer To Reset), it is stored in the memorizer of microcontroller,
4) microcontroller resets back to complex data content according to read, it is also possible to and between embedded SIM card, have a protocol parameter selection course PPS (Protocol Parameter Selection), completes the initialization procedure of embedded SIM card,
5) microcontroller is as a card reader, to embedded SIM card transmitting control commands, and the file data of reading SIM card file system,
6) microcontroller stores the file data of the embedded SIM card file system read in its memory.
6. according to microcontroller as claimed in claim 1, it is characterised in that described microcontroller is connect by radio communication as claimed in claim 2 Mouthful, the file data of other SIM card file system of wireless receiving, it is stored in the memorizer of described microcontroller, in memory other The file data of SIM card file system can be the file data of multiple different SIM.
7. according to microcontroller as claimed in claim 1, it is characterised in that described microcontroller provides embedded SIM card to mobile communication terminal Data so that mobile communication terminal can access cellular mobile communication networks by step as described below,
1) the radio base band Module SIM card interface of mobile communication terminal monitored by microcontroller, waits the clock signal of CLK interface to be received,
2) if microcontroller monitors the clock signal of radio base band module, just start and data IO of radio base band Module SIM card interface connect Mouthful, reset RST interface, read the output signal of these interfaces,
3) microcontroller if be detected that and the reset signal of replacements RST interface of radio base band Module SIM card interface, just by and wireless base With the data I/O interface of module, reply to one, radio base band Module SIM card interface and reply replacement data,
4) microcontroller resets after data from the beginning of the 1st step replying, the clock signal clk of monitoring wireless baseband module SIM interface again Interface, waits clock signal to be received,
5) microcontroller is without the reset signal of the replacement RST interface detected with radio base band Module SIM card interface, just passes through and nothing The data I/O interface of line baseband module, reads radio base band Module SIM card interface and issues the control command of embedded SIM card,
6) after microcontroller reads SIM control command, according to the type of this control command, this control command is obtained from different places Reply response data,
7) if the reply response data of SIM control command is the data that can directly read out from embedded SIM card, microcontroller Just directly from its memorizer, read these data and reply to radio base band module, then from the beginning of the 1st step, monitoring wireless again The clock signal clk interface of baseband module SIM interface, waits clock signal to be received,
8) if the reply response data of SIM control command just can only be obtained by internal operating program in embedded SIM card, micro-control Device processed is just sent to embedded SIM card the input parameter required for this control command and embedded SIM card operation program,
9) microcontroller clock CLK interface by embedded SIM card, exports clock signal to embedded SIM card,
10) microcontroller data I/O interface by embedded SIM card, forwards to embedded SIM card and reads from radio base band Module SIM card interface Take the control command of reading and run the input data required for this control command,
11) microcontroller waits that the reply of control command is responded by embedded SIM card, and starts a waiting time timer,
12) if waiting time-out, microcontroller just stops exporting clock signal to embedded SIM card, terminates and the data of embedded SIM card are handed over Change,
13) microcontroller is by the data I/O interface with radio base band module, and the error message replying " SIM data read errors " is given Radio base band module,
14) microcontroller is after reply mistake gives radio base band module, terminates the session cycle of this control command, from the beginning of the 1st step, again supervises Listen the CLK clock interface of radio base band module, wait clock signal to be received,
15) if waiting that being not timed-out embedded SIM card just has reply response data, the microcontroller data I/O interface by embedded SIM card, Read the embedded SIM card reply response data to control command,
16) microcontroller is by the data I/O interface with radio base band module, to the reply number of responses of radio base band module forwards embedded SIM card According to,
17) microcontroller stops exporting clock signal to embedded SIM card, terminates and the data exchange of embedded SIM card,
18) microcontroller is from the beginning of the 1st step, and the clock signal clk interface of monitoring wireless baseband module, waits clock signal next time again, Start the session cycle of a new SIM control command.
8. according to microcontroller as claimed in claim 1, it is characterised in that described microcontroller is connect by radio communication as claimed in claim 2 Mouth provides the data of other SIM to mobile communication terminal so that mobile communication terminal can access honeycomb by step as described below and move logical Communication network,
1) microcontroller passes through wireless communication interface, remotely obtains the file data parameter of other SIM, and described file data parameter can be identified for that Different SIMs,
2) whether there is during microcontroller checks its memorizer the backup copy of described SIM data, if it did not, just by wireless communication interface, All data that can be read by external equipment of wireless this SIM of acquisition, storage in memory, waits to be used, and monitoring wireless Baseband module SIM interface, waits the clock signal of CLK interface to be received, if receiving the clock signal of radio base band module, micro- Controller starts and the data I/O interface of radio base band Module SIM card interface, resets RST interface, reads the output letter of these interfaces Number,
3) if having the backup copy of these SIM data in the memorizer of microcontroller, microcontroller is with regard to direct monitoring wireless baseband module SIM Card interface, waits the clock signal of CLK interface to be received, if receiving the clock signal of radio base band module, just starts and wireless base With the data I/O interface of Module SIM card interface, reset RST interface, read the output signal of these interfaces,
4) microcontroller if be detected that and the reset signal of replacements RST interface of radio base band Module SIM card interface, just by and wireless base With the data I/O interface of module, reply to one, radio base band Module SIM card interface and reply replacement data,
5) microcontroller resets after data from the beginning of third step replying, the clock signal clk of monitoring wireless baseband module SIM interface again Interface, waits clock signal to be received,
6) microcontroller is without the reset signal of the replacement RST interface detected with radio base band Module SIM card interface, just passes through and nothing The data I/O interface of line baseband module, reads radio base band Module SIM card interface and issues the SIM control command data sent,
7), after microcontroller reads SIM control command, according to the type of this control command, returning of this control command is obtained from different places Complex response data,
8) if the reply response data of SIM control command is those data that can directly read out from SIM, microcontroller is just Directly from its memorizer, read these data and reply to radio base band module, then from the beginning of third step, monitoring wireless base again With the clock signal clk interface of Module SIM card interface, wait clock signal to be received,
9) if the reply response data of SIM control command can only be micro-by just obtaining at other SIM internal operating program of far-end Controller just this control command and the input parameter run required for this control command, is wirelessly transferred and gives this SIM,
10) microcontroller passes through wireless communication interface, waits the reply response data of SIM control command to be received, and starts a waiting time meter Time device,
11) if waiting time-out, microcontroller just stops being received back to complex response data by wireless communication interface,
12) microcontroller is by the data I/O interface with radio base band module, and the error message replying " SIM data read errors " is given Radio base band module, terminates and the session cycle of this SIM control command,
13) microcontroller is after reply mistake gives radio base band module, from the beginning of third step, when again monitoring the CLK with radio base band module Clock interface, waits clock signal next time to be received,
14) if waiting that be not timed-out microcontroller just receives the reply response data of SIM control command, microcontroller by wireless communication interface Device passes through and the data I/O interface of radio base band module, its reply response data received to radio base band module forwards,
15) microcontroller stops receiving data by wireless communication interface, terminates the session cycle of this SIM control command.
16) microcontroller is from the beginning of third step, and the clock signal clk interface of monitoring wireless baseband module, waits clock signal next time again, Start the session cycle of a new SIM control command.
9. according to microcontroller as claimed in claim 1, it is characterised in that described microcontroller is connect by radio communication as claimed in claim 2 Mouth provides the data of embedded SIM card to other mobile communication terminal so that other mobile communication terminal can be by step as described below Access cellular mobile communication networks,
1) microcontroller passes through wireless communication interface, provides the literary composition of embedded SIM card file system to other mobile communication terminal wireless remote Number of packages evidence, these SIM card file data are in the memorizer of storage microcontroller, all can be read by external equipment including those SIM card file data,
2) microcontroller passes through wireless communication interface, wait SIM control command that other mobile communication terminal to be received is wirelessly transferred or The input data of control command, the reply response data of these control commands needs to run SIM program ability at embedded SIM card Obtain,
3) microcontroller receives SIM control command or the input data of control command that other mobile communication terminal is wirelessly transferred After, first pass through the clock CLK interface with embedded SIM card, provide clock signal to embedded SIM card,
4) microcontroller is by the data I/O interface with embedded SIM card, forwards the control received from wireless communication interface to embedded SIM card System order or the input data of control command,
5) microcontroller waits the program operation result of embedded SIM card, and starts a waiting timer,
6) if waiting that time-out microcontroller does not the most receive the embedded SIM card reply response data to control command, just stop to embedded SIM provides clock signal, terminates and the data exchange of embedded SIM card,
7) microcontroller passes through wireless communication interface, transmits the error message of a SIM data acquisition to other mobile communication terminal, and ties Restraint the session cycle of this SIM control command,
8) microcontroller second step starts, again monitoring wireless communication interface, waits the SIM that other mobile communication terminal to be received is wirelessly transferred The input data of card control order or control command,
9) if microcontroller just receives the embedded SIM card reply response data to control command without waiting for time-out, just connect by radio communication Mouthful, forward the reply response data of this control command, terminate the order session cycle,
10) microcontroller stops providing clock signal to embedded SIM card, terminates and the data exchange of embedded SIM card,
11) microcontroller second step starts, again monitoring wireless communication interface, waits other mobile communication terminal to be received to be wirelessly transferred The input data of SIM control command or control command.
10. according to microcontroller as claimed in claim 1, it is characterised in that described microcontroller runs a software function module, described software SIM application toolkit (SAT, the SIM Application Toolkit) interface of functional module application standard, to the nothing of mobile communication terminal Line baseband module SIM interface sends SAT order, provides the user the application function of SAT, and described software function module is by as follows Flow process realizes,
1) the SIM data that mobile communication terminal is provided by microcontroller, access cellular mobile communication networks,
2) microcontroller is according to the function needs of mobile communication terminal SIM controller, arranges SIM application toolkit (SAT) marking variable, Identify microcontroller whether there are SAT data to need to be transferred to the radio base band module of mobile communication terminal,
3) the radio base band module of mobile communication terminal is passed through and the data I/O interface of microcontroller, reading SIM card running state information (status), 4) microcontroller reading SIM card application toolkit (SAT) marking variable.
5) if marking variable instruction microcontroller does not has SAT data to need to be transferred to the radio base band module of mobile communication terminal, microcontroller is just Replying radio base band module by data I/O interface, SIM running status is correct,
6) if marking variable instruction microcontroller has SAT data and needs to be transferred to the radio base band module of mobile communication terminal, microcontroller is just Replying radio base band module by data I/O interface, SIM has further data to need to be transferred to radio base band module,
7) the radio base band module of mobile communication terminal pass through data I/O interface, to microcontroller send SIM data retrieval commands (fetch, 0x12), obtain the data of SAT order,
8) microcontroller passes through data I/O interface, replys the SIM data retrieval commands of the radio base band module of mobile communication terminal, to wireless Baseband module sends the data of SAT order,
9) microcontroller is according to the function needs of further mobile communication terminal SIM controller, resets or removes the 2nd) SAT of step Order indexed variable.
CN201610278994.2A 2016-05-03 2016-05-03 Mobile communication terminal having wireless transmission function of embedded SIM card data Pending CN106028304A (en)

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CN203025353U (en) * 2012-11-29 2013-06-26 周小伟 Tri-proof mixed positioning tracking device for container
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Application publication date: 20161012