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High-capacity data interchange method between mobile terminal and smart card

A mobile terminal and data exchange technology, applied in the direction of network data management, telephone structure, electrical components, etc., can solve problems such as the inability to use data transmission mechanism, and achieve convenient implementation, saving data verification units, and saving verification units. Effect

Active Publication Date: 2008-12-10
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the upper layer application software of the mobile terminal cannot take advantage of this data transmission mechanism

Method used

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  • High-capacity data interchange method between mobile terminal and smart card
  • High-capacity data interchange method between mobile terminal and smart card
  • High-capacity data interchange method between mobile terminal and smart card

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Experimental program
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Embodiment Construction

[0056] First of all, the difference between the mobile terminal application access smart card data method and the current method in the large-capacity data exchange method between the mobile terminal and the smart card of the present invention is explained. The model of the present invention is as follows figure 2 As shown, in the current way ( figure 1 ), a common data transmission channel is established between the mobile terminal and the smart card by using common APDU commands. The upper layer application of the mobile terminal uses the general APDU command to directly access the smart card for large data transmission instead of the STK command or AT command; to avoid figure 1 Incompatibility may be caused by software (such as STK virtual machine) interface or hardware interface (such as AT command).

[0057] In the second step, the present invention's train of thought and main means are described:

[0058] (1) Use general APDU commands open to upper layer applications:...

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Abstract

The invention relates to a method for exchanging data in large capacity between a mobile terminal and a smart card, comprising the steps of: utilizing a universal APDU command to establish a data transmission channel between the smart card and the mobile terminal; using a target address and a source address corresponding to application of the mobile terminal and files of the smart card to establish a particular logic channel; applying the two channels to block-transfer large-capacity data that each block has the size consistent with standards. Such a method settles the problem about transmission of large-capacity data via a standardized ISO / IEC 7816 interface by adopting the universal APDU command opening for upper layer application to establish the shared data transmission channel between the smart card and the mobile terminal, and further by adopting the methods of data encapsulation and tunnel protocol.

Description

technical field [0001] The invention relates to the application of the mobile terminal and the smart card, in particular to a large-capacity data exchange method between the mobile terminal and the smart card. Background technique [0002] (1) With the rapid development and wide application of wireless communication technology, various mobile value-added services / applications appear one after another. Among them, there are two typical types: applications based on mobile terminals and applications based on smart cards. Although the former has been developed to a certain extent, because it is rarely supervised by operators, it does not receive strong support from operators; while applications based on smart cards are completely monitored by operators because they are integrated in smart cards. , It is easier to get support from operators than applications based on mobile terminals, and thus get a large area of ​​promotion. [0003] However, due to the limitations of many tec...

Claims

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Application Information

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IPC IPC(8): H04Q7/32H04Q7/34H04M1/02H04W8/20
CPCH04W8/205
Inventor 黄正全杨延辉张溯潘智勇
Owner SPREADTRUM COMM (SHANGHAI) CO LTD