Circuit structure and method for realizing data parsing of SIM/USIM ((Subscriber Identity Module/Universal Subscriber Identity Module) card in digital baseband communication chip

A digital baseband and communication chip technology, applied in the field of circuit structure to realize SIM/USIM card data analysis, can solve the problems of prolonging the research and development cycle, increasing the risk of research and development failure, and increasing the cost of research and development, so as to achieve a wide range of applications and broaden Analyze the solution and save R&D time

Active Publication Date: 2011-09-28
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above two methods will inevitably increase R&D costs, lengthen the R&D cycle, and increase the risk of R&D failure.

Method used

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  • Circuit structure and method for realizing data parsing of SIM/USIM ((Subscriber Identity Module/Universal Subscriber Identity Module) card in digital baseband communication chip
  • Circuit structure and method for realizing data parsing of SIM/USIM ((Subscriber Identity Module/Universal Subscriber Identity Module) card in digital baseband communication chip
  • Circuit structure and method for realizing data parsing of SIM/USIM ((Subscriber Identity Module/Universal Subscriber Identity Module) card in digital baseband communication chip

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Embodiment Construction

[0095] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0096] see figure 1 As shown, the circuit structure for implementing SIM / USIM card data analysis in the digital baseband communication chip includes:

[0097] (1) processor module, read and write the register of storage space module and other each module, control each module function, and receive the interrupt signal that each module produces; Described processor module is ARM processor;

[0098] (2) data access module, the data in the state register of input-output module is carried in the data storage space module; Described data access module is DMA controller;

[0099] (3) a data storage space module, which stores data and provides data read and write access for the processor module or data access module;

[0100] (4) data input and output module, receive the control signal of described processor module or data access module, provide c...

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Abstract

The invention relates to a circuit structure for realizing data parsing of an SIM/USIM (Subscriber Identity Module/Universal Subscriber Identity Module) card in a digital baseband communication chip. The circuit structure comprises a processor module, a data access module, a data storage space module, a data input-output module and a timer module which are interactively connected with one another through an internal bus module. The invention further relates to a method for realizing the data parsing of the SIM/USIM card in the digital baseband communication chip based on the circuit structure. Due to the adoption of the circuit structure and the method for realizing the data parsing of the SIM/USIM card in the digital baseband communication chip, a small quantity of system resources are occupied, the processing procedure is finished by using idle time of the processor, the working performance is stable and reliable, the application range is wide, a large quantity of research and development cost and time are saved, and the parsing scheme of the conventional digital baseband chip for the data of the SIM/USIM card is expanded; and the circuit structure and the method have wide application prospect in the field of digital communication application.

Description

technical field [0001] The invention relates to the field of integrated circuit chips, in particular to the technical field of digital baseband communication chips, and specifically refers to a circuit structure and method for realizing SIM / USIM card data analysis in a digital baseband communication chip. Background technique [0002] Whether it is the GSM system in the 2G era or the WCDMA / CDMA2000 / TD-SCDMA system in the 3G era, digital mobile users will get a SIM card (Subscriber Identity Module) or USIM card (UMTS Subscriber Identity Module) when they "connect to the network". [0003] The SIM card is an important part of the GSM (Global System for Mobile communication) digital mobile communication system. A SIM card is a miniature smart card (Smart Card, commonly known as an IC card) that complies with the ISO standard. The IC card is equipped with a microcomputer integrated circuit, which can realize calculation and securely store information. Similar to the SIM card, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H04M1/725
Inventor 王冬佳张结华
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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