CN201234299Y - Smart card for telecommunication - Google Patents

Abstract

The utility model discloses a telecommunication smart card, which is used to solve the problem in the prior art that the mobile phone telecommunication smart card cannot perform interactive communication with an external non-contact card. The telecom smart card includes: a control unit for controlling the transmission unit to communicate interactively with an external contactless card, and to process signaling data from the transmission unit; a transmission unit for interactively communicating with an external contactless card to receive The signaling data from the external contactless card is sent to the control unit. By adopting the utility model, the telecommunication smart card can carry out interactive communication with the external non-contact card, which satisfies the requirement of the user to access the external non-contact card by using the mobile phone, and enhances the user experience.

Description

A telecommunications smart card

technical field

The utility model relates to the field of mobile communication equipment, in particular to a telecommunication smart card.

Background technique

At present, mobile phone telecom smart cards, such as SIM cards, UIM cards, USIM cards, etc., can complete basic telecom functions, such as access to communication networks, user authentication and other functions.

With the increase of business and the continuous growth of user needs, it is necessary to use mobile phones to realize interactive communication with external contactless cards, such as debiting money from electronic wallet smart cards.

In the process of realizing the utility model, the inventor finds that there are at least the following technical problems in the prior art:

At present, smart cards for mobile phone telecommunication do not have the function of interactive communication with external contactless cards.

Contents of the invention

The utility model provides a telecommunication smart card, which is used to solve the problem in the prior art that the mobile phone telecommunication smart card cannot perform interactive communication with an external non-contact card.

The utility model provides a telecommunication smart card, which includes:

The control unit is connected with the transmission unit, and is used to control the transmission unit to perform interactive communication with the external contactless card; process the signaling data from the transmission unit;

The transmission unit is connected with the transmission unit and is used for interactive communication with the external contactless card; and sending the received signaling data from the external contactless card to the control unit.

The telecommunications smart card provided by the utility model realizes the function of interactive communication between the telecommunications smart card and an external non-contact card by adding a control unit and a transmission unit to the existing telecommunications smart card, that is, realizes the non-contact reading and writing of the telecommunications smart card The reader/writer function of the card satisfies the needs of users to access external contactless cards with mobile phones, and enhances the user experience.

Description of drawings

Fig. 1 is the structural representation of the telecom smart card provided by the utility model;

Fig. 2 is a specific example diagram of the telecommunication smart card provided by the utility model.

Detailed ways

In order to realize the interactive communication function between the mobile phone telecommunication smart card and the external non-contact card, the utility model provides a telecommunication smart card. The telecommunication smart card is based on the existing telecommunication smart The function of processing the signaling data sent by the contactless card accordingly.

Referring to Fig. 1, the telecommunication smart card provided by the utility model includes an existing telecommunication smart module 10, and also includes a control unit 11 and a transmission unit 12, wherein:

The control unit 11 is connected to the transmission unit, and is used for controlling the transmission unit to perform interactive communication with an external contactless card; processing signaling data from the transmission unit;

The transmission unit 12 is used for interactive communication with the external contactless card; and sending the received signaling data from the external contactless card to the control unit.

Specifically, the control unit 11 is configured to: send an operation signaling to the external contactless card to the transmission unit; receive signaling data sent by the transmission unit, and process the signaling data. Here, the operation signaling sent by the control unit to the transmission unit may be from the application software of the mobile phone, or from the telecommunication intelligent module, or the signaling generated by the control unit itself. The operation signaling includes but not limited to: read data command, write data command, reset command and so on.

The transmission unit 12 includes a codec unit 20 and an antenna interface unit 21, wherein:

The codec unit 20 is connected with the antenna interface unit, and is used to encode the signaling sent to the external contactless card, and transmit the encoded signaling data to the antenna interface unit; the received signal from the antenna interface unit Decode the signaling, and transmit the decoded signaling data to the control unit;

The antenna interface unit 21 is used to connect the codec unit and the external antenna, that is, the codec unit is connected to the antenna interface unit, and the external antenna is also connected to the antenna interface unit; the antenna interface unit encodes the signaling data encoded by the codec unit Send to the external antenna and send to the external contactless card; send the received signaling data from the external antenna to the codec unit;

Here, the antenna interface unit may specifically be an existing output contact of the telecom smart card, which connects the telecom smart module and the external antenna, that is, both the telecom smart module and the external antenna are connected to the antenna interface unit; the existing output contact Points include: C4 contact, C8 contact, that is, the codec unit is connected to the external antenna through C4 contact and C8 contact.

The external antenna transmits the signaling data sent by the antenna interface unit to the external contactless card, and transmits the signaling received from the external contactless card to the antenna interface unit.

In order to be able to interact with the mobile phone, the telecommunication smart card provided by the utility model also includes a mobile phone interface unit 13, which is connected to the control unit and is used to receive the operation signaling from the mobile phone and send the operation signaling to the mobile phone. The control unit sends the operation signaling to the transmission unit.

Here, the mobile phone interface unit can specifically be the existing contacts of the telecom smart card for receiving input signals from the mobile phone software and sending signals to the mobile phone software. The existing contacts include reset signal contact C2, clock signal contact C3 and input and output contacts. Contact C7.

Here, the control unit can be directly connected to the mobile phone interface unit. Preferably, in order to make the connection between the control unit and the mobile phone interface unit controllable, a circuit control unit can also be added to receive the connection between the control unit and the mobile phone interface unit. The command to connect between the interface units of the mobile phone, and establish or disconnect the connection between the control unit and the interface unit of the mobile phone according to the command. Specifically, the circuit control unit may adopt a general triode switch control circuit. Specifically, the control unit may be a master single-chip microcomputer.

After receiving the signaling data returned by the external contactless card, the external antenna transmits the signaling data to the codec unit through the antenna interface unit; the codec unit directly transmits the signaling data to the control unit for processing , or, the codec unit sends signaling data to the line of the mobile phone interface unit, and the mobile phone software reads the data on the line of the mobile phone interface unit, so the codec unit is also connected to the mobile phone interface unit .

The device further includes:

The power supply interface unit 14 is connected with the control unit and the transmission unit, and is used for supplying power to the control unit and the transmission unit.

Here, the power supply interface unit may specifically be an existing power supply contact of the telecom smart card, and the existing power supply contact includes: a power input contact C1, a power ground contact C5 and a control contact C6. The control unit and the transmission unit can be directly connected to the power supply interface unit. Preferably, in order to make the connection between the control unit, the transmission unit and the power supply interface unit controllable, a power control unit can also be added to receive the setup or shutdown. The command to open the connection between the control unit, the transmission unit and the power supply contact, and establish or disconnect the connection between the control unit, the transmission unit and the power supply interface unit according to the command. Specifically, the power control unit may adopt a general triode switch control circuit.

The existing telecommunication intelligent module 10 of the telecommunication smart card is connected with the mobile phone interface unit and the antenna interface unit, and is used to store relevant information of mobile phone users and complete the communication function of the existing telecommunication smart card; it can also be connected with an external antenna, and the telecommunication intelligent module supports In this way, the non-contact communication can also accept the access of the outside world through the external antenna, so that the telecommunications smart card has the function of a non-contact telecommunications smart card.

Preferably, the control unit is connected to the telecommunication intelligent module, and commands are exchanged with the control unit. For example, the control unit can access the verification information or verification algorithm in the telecom smart module to authenticate the external contactless card and the telecom smart card.

The control unit is connected to the mobile phone interface unit, and its connection line can be independent of the connection line between the existing telecommunication intelligent module and the interface unit. Preferably, the control unit reuses the connection line between the telecommunication intelligent module and the mobile phone interface unit. That is, the control unit and the telecommunication intelligent module are connected to the mobile phone interface unit through bus multiplexing.

As shown in Figure 2, it is a detailed schematic diagram of the telecom smart card provided by the utility model, in which the control unit (MCU) is connected with the codec (RF) unit; The I/O connection line between the ) contacts, the MCU and the RF unit are connected to the I/O contacts, and the I/O contacts include C2, C3, and C7 contacts; the MCU and the RF unit are connected to the power supply contacts through a power control circuit Points C1, C5 and C6 are connected, the external antenna is connected to the output contacts C4 and C8, and the RF unit is connected to the external antenna through the C4 and C8 contacts. The MCU is also connected to an existing telecommunication intelligent module and can communicate with the telecommunication intelligent module. The telecommunication intelligent module is also connected with the C4 and C8 contacts, so that the antenna can be used for communication to form a non-contact channel.

It should be noted that the various contacts mentioned above are not fixed, and the existing contacts can be expanded or redefined, such as changing the C1 contact from the original power supply contact to an input contact, Alternatively, add contacts C9 and C10, and the antenna is changed to be connected to C9 and C10, then the radio frequency module also needs to be connected to C9 and C10 accordingly.

The working process of the telecom smart card provided by the utility model is described below with specific examples:

Example one:

In this example, the telecom smart card sends a reset command to the external contactless card, and the external contactless card resets according to the reset command and returns a successful reset response to the telecom smart card, as follows:

Step S00: the mobile phone application software triggers the telecom smart card to power up the MCU and the RF unit;

Specifically, the mobile phone application software sends the enable level to the C6 contact of the telecom smart card, and the power control module powers up the MCU and the RF unit after it is turned on;

Step S01: the mobile phone application software triggers the MCU on the telecom smart card to send a reset command to the external contactless card;

Specifically, after a necessary power-on delay, the mobile phone application software sends a reset command to the C2, C3 and C7 contacts of the telecom smart card, and the C2, C3 and C7 contacts send the reset command to the MCU;

The MCU sends the reset command to the RF unit, and the RF unit encodes the reset command, and sends the RF modulation waveform of the reset command to the external contactless card through the antenna;

Preferably, when the reset command is sent to the C2, C3 and C7 contacts, since both the telecom intelligent module and the MCU are connected to the C2, C3 and C7 contacts, both the MCU and the telecom intelligent module may receive the reset command. The commands of the telecom intelligent module are different. Here, the node address byte (NAD) in the "block frame" defined by the specification is used to distinguish the object to which the command is sent, and the NAD in the command frame sent to the MCU is set to the The NAD in the command frame of the module is different from the value, such as setting the NAD of the command frame sent to the telecom intelligent module to 0, and setting the NAD of the command frame sent to the MCU to 1. In this way, when a command appears on the line of C2, C3 and C7 contacts, the telecom intelligent module and the MCU receive the command at the same time, and can judge whether the command is valid for itself through the NAD mark. If it is an invalid command, then If it is a valid command, follow-up corresponding processing will be done, and when the response signaling is received, the command frame with the corresponding NAD will be sent back to the lines of C2, C3 and C7 contacts, and the mobile phone software will start from this line Read the response information before doing follow-up operations.

Step S02: After the external contactless card resets according to the reset command, it returns a reset response signaling to the telecom smart card;

Specifically, the external non-contact card in the radio frequency field of the antenna obtains electric energy through the principle of electromagnetic induction, and sends a load wave of reset response to the telecom smart card after power-on;

Step S03: The antenna of the telecom smart card sends the reset response signaling received from the external contactless card to the RF unit, and the RF unit decodes the reset response signaling, and then sends the decoded signaling data to C2, C3 and On the line of C7 contact;

In this step, after the RF unit decodes the received reset response signaling, it can also send the decoded signaling data to the MCU, and the MCU organizes the signaling data into specified frame structure data and sends them to C2, C3 and On the line of C7 contact;

Step S04: The mobile phone application software analyzes the data read from the lines of C2, C3 and C7 contacts, obtains reset response data, and performs corresponding screen display or voice prompt operations.

Example two:

In this example, the telecom smart card sends a data reading command to the external contactless card, and the external contactless card returns the data to be read to the telecom smart card according to the data reading command, as follows:

Step S10: the mobile phone application software sends a data reading command to the C2, C3 and C7 contacts of the telecom smart card;

Step S11: C2, C3 and C7 contacts send the data read command to the MCU;

Step S12: the MCU sends the data read command to the RF unit;

Step S13: The RF unit encodes the data read command and sends it to the external contactless card through the antenna;

Step S14: After receiving the data reading command, the external contactless card queries the data that the telecom smart card needs to read according to the relevant information in the data reading command, and returns the queried data to the telecom smart card in the read response signaling ;

Step S15: The antenna of the telecom smart card sends the received read response signaling returned by the external contactless card to the RF unit, and the RF unit decodes the read response signaling, and then sends the decoded signaling data to C2, C3 and On the line of C7 contact;

In this step, after the RF unit decodes the received read response signaling, it can also send the decoded signaling data to the MCU, and the MCU organizes the signaling data into a specified frame structure data and sends it to C2, C3 and On the line of C7 contact;

Step S16: The mobile phone application software analyzes the data read from the lines of C2, C3 and C7 contacts, obtains the data to be read, and performs corresponding operations such as screen display or voice prompts.

Certainly, before step S10, if the MCU and the RF unit of the telecom smart card have not been powered on, the same step S00 needs to be powered on.

Example three:

In this example, to realize the deduction operation of the telecom smart card to the external electronic wallet consumption card, the MCU of the telecom smart card needs to perform signaling interaction with the external electronic wallet consumption card and the internal telecom intelligent module, as follows:

Step S20: the mobile phone application software sends a deduction command to contacts C2, C3 and C7 of the telecom smart card;

Step S21: C2, C3 and C7 contacts send the debit command to the MCU;

Step S22: the MCU sends the deduction command to the RF unit;

Step S23: The RF unit sends the deduction command to the external electronic wallet consumer card through the antenna;

Step S24: The external electronic wallet consumer card sends an authentication request including authentication-related information to the telecom smart card;

Step S25: The antenna of the telecom smart card sends the received authentication request returned by the external contactless card to the RF unit, and the RF unit decodes the authentication request, and then sends the decoded data to the MCU;

Step S26: The MCU organizes the authentication request data received from the RF unit into specified frame structure data and sends it to the lines of C3, C5, and C7; the telecom intelligent module reads the authentication request from the lines of C3, C5, and C7 data, and according to the authentication-related information contained in the authentication request data and the verification information or verification algorithm stored by itself, the external electronic wallet consumption card is authenticated, and the authentication result is sent to the MCU, and the MCU sends it to the RF unit;

Step S27: The RF unit sends the authentication result to the external electronic wallet consumer card through the antenna;

Step S28: The external electronic wallet consumption card returns an authorization response signaling or a rejection signaling to the telecom smart card according to the authentication result;

Step S29: The antenna of the telecom smart card sends the received authorization response signaling or rejection signaling returned by the external contactless card to the RF unit, and the RF unit decodes the authorization response signaling or rejection signaling, and then decodes the decoded data Send to MCU;

Step S30: If the MCU receives the authorization response signaling from the RF unit, it sends to the RF unit a deduction command carrying an authentication pass mark; the RF unit sends the deduction command to the external electronic wallet consumption card through the antenna; the external electronic wallet consumption card Carry out the deduction operation according to the received deduction command and send the deduction response signaling to the telecom smart card; the antenna of the telecom smart card sends the received deduction response signaling to the RF unit, and the RF unit decodes the deduction response signaling , and then send the decoded data to the MCU, and the MCU organizes the data into a specified frame structure data and sends it to the lines of C2, C3 and C7 contacts; Analyze the data read from the Internet, get the deduction response data, and perform corresponding operations such as screen display or voice prompts;

If the MCU receives a rejection signal from the RF unit, it ends the deduction process, or re-performs the authentication and deduction operation.

In the above step S25 and step S29, the RF unit can also directly send the decoded data to the lines of C2, C3, and C7 contacts, and the mobile phone software reads the data from the lines of C2, C3, and C7 contacts and Organize the data into a specified frame structure data and send it to the lines of C2, C3, and C7, and the MCU reads the data from the lines of C2, C3, and C7 to perform subsequent operations. Adopting this solution requires a new communication protocol between the mobile phone and the RF unit, which can be based on an existing standard protocol or can be redefined.

It should be noted that the telecom smart card mentioned in this utility model includes but not limited to: SIM card for GSM network, UIM card for CDMA network, USIM card for 3G network. The external non-contact cards mentioned in the present invention include but not limited to electronic cards such as electronic wallet consumer cards.

It can be seen that the mobile phone telecommunication smart card provided by the utility model can realize the following functions:

Sending operation signaling to the external contactless card; receiving signaling data returned by the external contactless card, and processing the signaling data.

Specifically, the mobile phone telecom smart card transmits the operation signaling to the external contactless card through its own MCU, RF unit and antenna.

The telecom smart card sends corresponding operation signaling to the external contactless card according to external instructions or internal program flow.

The operation signaling comes from a mobile phone application software or an existing telecommunication intelligent module, etc., and the operation signaling can adopt a data format of a standardized communication protocol, such as the ISO7816 protocol; or, the operation command can also adopt a self-defined data format. The operation signaling may contain identification information indicating that the operation signaling is valid for the control unit or the telecommunication intelligent module. The operation signaling specifically includes, but is not limited to: a read data command, a write data command, a set command, and the like.

Before transmitting the operation signaling to the external contactless card, the operation signaling may also be encoded.

When receiving the signaling data returned by the external contactless card, the antenna connected to the telecom smart card will send the received signaling data returned by the external contactless card to the RF unit of the telecom smart card, and then the RF unit will send the signaling data Send it directly to the MCU for corresponding processing, or the RF unit sends the signaling data to the line of the input and output contacts, and the mobile phone software reads the signaling data from the line of the input and output contacts and processes accordingly.

The corresponding processing of the signaling data by the telecom smart card specifically includes but is not limited to: sending the signaling data to the mobile phone software, and the mobile phone software processes the signaling data, such as displaying the signaling data on the screen or giving voice prompts etc.; or, the telecommunication smart card saves the signaling data or updates the information in the telecommunication smart module according to the signaling data.

Before processing the signaling data, the signaling data may be decoded as required to obtain identifiable valid data in a specified format.

Preferably, the telecom smart module of the telecom smart card can also authenticate the external contactless card and the telecom smart card according to the verification information or verification algorithm stored by itself.

In summary, the beneficial effects of the utility model are:

In the device provided by the utility model, by adding a control unit and a transmission unit to the existing mobile phone telecommunication smart card, the function of interactive communication between the mobile phone telecommunication smart card and an external non-contact card is realized, that is, the reading and writing of the mobile phone telecommunication smart card is realized The reader function of the contactless card meets the needs of users to access external contactless cards with mobile phones, and enhances the user experience.

At the same time, the existing telecommunication intelligent module of the mobile phone telecommunication smart card in the utility model is connected with the external antenna, so that the mobile phone telecommunication smart card can accept external access as a non-contact card.

Further, the control unit in the utility model is also connected with the existing telecommunication intelligent module of the mobile phone telecommunication smart card. The control unit is a contact reader-writer relative to the telecommunication intelligent module, and the control unit and the telecommunication intelligent module can be Signaling interaction is independent of the mobile phone.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (14)

1, a kind of telecom intelligent card is characterized in that, this telecom intelligent card comprises:

Control unit links to each other with transmission unit, is used for the control transmission unit and outside non-contact card carries out interactive type communication; Processing is from the signaling data of transmission unit;

Transmission unit links to each other with described control unit, is used for carrying out interactive type communication with outside non-contact card; The signaling data from outside non-contact card that receives is sent to described control unit.

2, telecom intelligent card as claimed in claim 1 is characterized in that, described transmission unit comprises:

Codec unit links to each other with the antennal interface unit, be used for the signaling that sends to outside non-contact card is encoded, and the signaling data after will encoding sends the antennal interface unit to; The signaling from the antennal interface unit that receives is decoded, and send decoded signaling data to described control unit;

The antennal interface unit is used to connect described codec unit and exterior antenna, sends the signaling data behind the described coding to exterior antenna and sends to outside non-contact card; The signaling data of receiving from exterior antenna is sent to described codec unit.

3, telecom intelligent card as claimed in claim 1 is characterized in that, this telecom intelligent card further comprises:

The handset port unit links to each other with described control unit, is used to receive the operation signaling from mobile phone, should operate signaling and send to described control unit.

4, telecom intelligent card as claimed in claim 3 is characterized in that, described handset port unit is described telecom intelligent card reception cell phone software input signal and the contact that sends signal to cell phone software.

5, telecom intelligent card as claimed in claim 4 is characterized in that, described contact comprises: reset signal contact C2, clock signal contact C3, input and output contact C7 with interactive transmission function.

6, telecom intelligent card as claimed in claim 3 is characterized in that, the telecommunication intelligent module of this telecom intelligent card links to each other with exterior antenna by the antennal interface unit, is used for the memory mobile phone user related information; Accept extraneous visit by described antenna.

7, telecom intelligent card as claimed in claim 3 is characterized in that, the telecommunication intelligent module of this telecom intelligent card further links to each other with described control unit, and carries out Signalling exchange between the described control unit.

As claim 3 or 6 or 7 described telecom intelligent cards, it is characterized in that 8, the telecommunication intelligent module of described control unit, this telecom intelligent card links to each other with described handset port unit by the bus multiplex mode.

9, telecom intelligent card as claimed in claim 2 is characterized in that, described antennal interface unit is the output contact that described telecom intelligent card is connected with described exterior antenna.

10, telecom intelligent card as claimed in claim 9 is characterized in that, described output contact comprises: C4 contact, C8 contact.

11, telecom intelligent card as claimed in claim 1 is characterized in that, this telecom intelligent card further comprises:

The power supply interface unit is used for to described control unit and the power supply of described transmission unit.

12, telecom intelligent card as claimed in claim 11 is characterized in that, described power supply interface unit is the power supply contact of described telecom intelligent card.

13, telecom intelligent card as claimed in claim 12 is characterized in that, described power supply contact comprises:

Power supply input contact C1, power supply ground contact C5, control contact C6.

14, telecom intelligent card as claimed in claim 1 is characterized in that, this mobile phone telecom intelligent card is: client identification module SIM card or subscriber identification module UIM card or USIM usim card.

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