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Method and device for realizing global system for mobile communications (GSM) terminal to access 3G universal subscriber identity module (USIM) card

A terminal and card technology, applied in telephone communication, network data management, electrical components, etc., can solve the problems that the basic functions of the card cannot be realized, the GSM terminal cannot normally access the 3GUSIM card, and the USIM cannot be recognized.

Active Publication Date: 2011-06-29
芯鑫融资租赁(天津)有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] It can be seen from the above that if the access method specified in the GSM protocol is used, the GSM terminal will not be able to access the 3G USIM card normally. After the USIM is inserted into the GSM terminal, it will not be recognized and the words "Please insert the SIM card" will appear. Functions (such as reading the phone book) are not available

Method used

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  • Method and device for realizing global system for mobile communications (GSM) terminal to access 3G universal subscriber identity module (USIM) card
  • Method and device for realizing global system for mobile communications (GSM) terminal to access 3G universal subscriber identity module (USIM) card
  • Method and device for realizing global system for mobile communications (GSM) terminal to access 3G universal subscriber identity module (USIM) card

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the method and device for GSM terminal accessing 3G USIM cards of the present invention will be further described in detail in conjunction with the accompanying drawings and embodiments, and the known implementations will not be described in detail to avoid There is unnecessary confusion with the content of the present invention.

[0028] The following file names starting with EF, such as EFimsi, EFfplmn, EFecc, EFsst, EFust, EFphase, etc., are the representation formats for files in the card, which are prior art and will not be described in detail.

[0029] The invention provides a method for a GSM terminal to access a 3G USIM card, such as figure 1 As shown, after the terminal is turned on to activate the card, the type of smart card inserted into the terminal is judged according to the instructions supported by the card. If it is a 3G USIM card, the information interact...

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Abstract

The invention provides a method and device for realizing a global system for mobile communications (GSM) terminal to access a 3G universal subscriber identity module (USIM) card. The method comprises the following steps: after a starting terminal activates a card, judging the type of a smart card which is inserted into a terminal in accordance with instruction conditions supported by the card; and if the smart card is the 3G USIM card, realizing information interaction between a GSM protocol stack and the card by conversion operations, wherein the conversion operations comprise the conversion of operating command heads which are sent to a USIM from the GSM terminal, the conversion of status words returned by the USIM into GSM status words, the conversion of file control parameters returned by the USIM into GSM file attributes, and the mutual conversion of 3G formatted file contents and GSM formatted file contents when the GSM terminal modifies or acquires USIM file contents. According to the invention, the protocol stack of the GSM terminal can access the 3G USIM card normally and acquire corresponding information from the 3G USIM card; and the 3G USIM card can realize fundamental service functions.

Description

technical field [0001] The invention relates to a method for enabling a user terminal in a GSM wireless mobile communication system to access a 3G USIM card, enabling the USIM card supporting the 3GPP protocol to be normally accessed by a GSM terminal, and realizing all functions corresponding to the GSM SIM in the 3GUSIM. Background technique [0002] SIM card (Subscriber Identity Module, customer identification module), also known as smart card, subscriber identity card, the current GSM terminal must be equipped with this card before it can be used normally. The communication between the protocol stack (Protocol Stack, PS for short) of the terminal and the SIM card follows the relevant GSM protocol, so as to realize the functions in the SIM card, such as short message, phone book storage, user identity verification and so on. USIM card (Universal Subscriber Identity Module, Global Subscriber Identity Module), also called upgrade SIM, is a component of UMTS 3G network. In ...

Claims

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Application Information

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IPC IPC(8): H04M1/725H04W8/20
Inventor 罗勇赵春泽赖翔
Owner 芯鑫融资租赁(天津)有限责任公司
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