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The method of the cooperative use of the data structure of the phone directory in the large-capacity SIM card

A data structure and phone book technology, applied in the field of telecommunications, can solve problems such as diversification of contact information, limited capacity of SIM card, and unfavorable expansion of a wider range.

Inactive Publication Date: 2007-08-01
上海量昌信息科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

Since the capacity of the traditional SIM card is always limited, this method is also not conducive to the needs of a wider range of expansion, and this method does not propose a solution to the problem of diversification of contact information

Method used

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  • The method of the cooperative use of the data structure of the phone directory in the large-capacity SIM card

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Embodiment Construction

[0075] This embodiment is carried out on the premise of the technical solution of the present invention, and the detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0076] This embodiment adopts: the new S-SIM chip of South Korea's Samsung Company: model S3FJ9CH, equipped with 128MNand Flash memory and MMC high-speed communication interface. The specific implementation is as follows:

[0077] (1) As shown in Figure 1, three phonebook files are set in the high-capacity SIM card: the main phonebook file EFadn is set in the "SIM" area, and the image phonebook file and the extended phonebook file are set in the "Flash" area. Now assume:

[0078] ① There are 200 contact records in the main phonebook file EFadn.

[0079] ②The image phonebook file number book and the extended phonebook file are stored in the "Flash" of the SIM card, and the file name is: SPB.dat.

[0080]...

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Abstract

The synergic application method for telephone directory data structure in large-capacity SIM (S-SIM) card comprises: using three telephone directory files stored in two areas in S-SIM card as one integer for telephone directory function; setting record structure for video and expansion telephone directory files; when using the directory, deciding mobile phone type; for common phone, using the directory as traditional process; for S-SIM phone, initiating the directory, and executing operation. This invention expands the application of SIM card telephone directory.

Description

technical field [0001] The invention relates to a method in the technical field of telecommunications, in particular to a method for cooperatively using the data structure of a phone book on a large-capacity SIM card. Background technique [0002] With the expansion of the human social circle in modern society, there is a need to store a large number of contact names, phone numbers and other information. With the rapid development of modern communication technology, such needs have been met on modern communication equipment, users can store contact information in the phone book provided by mobile phones or SIM (Subscribe Identity Module, SIM for short) cards middle. With the continuous increase of contact information, mobile phones or SIM cards often cannot meet the storage needs of users due to the limitation of storage capacity. With the continuous development of mobile phone technology, this problem has been solved in today's new mobile phones. The storage capacity of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/275H04M1/2745H04Q7/32G06K19/07G06F17/30
Inventor 邬佳希王相生邵志民
Owner 上海量昌信息科技有限公司
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