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A system and method for identification module card number upgrading for CDMA clients

A technology of subscriber identification module and identification module, which is applied in the direction of radio/inductive link selection arrangement and selection device, and can solve the problem of exhaustion of CMDA card numbers

Inactive Publication Date: 2008-07-09
CHINA TELECOMM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a system and method for upgrading the card number of a CDMA user identification module. Changing the network and terminal equipment does not need to replace the UIM card, saving R&D costs and R&D time, and can smoothly support UIMID number upgrades to ensure the normal operation of the mobile communication system

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  • A system and method for identification module card number upgrading for CDMA clients

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Embodiment Construction

[0022] In the present invention, the integrated circuit identification code ICCID stored in the UIM card is used as an extended UIMID (Extension UIMID, EUIMID) uniquely identifying the UIM card. When the network needs to use 32-bit parameters, the ICCID is compressed into 24 bits by the SHA-1 algorithm or 24 bits are continuously or intermittently selected from the ICCID to obtain 24 bits, and the 1000 0000 prefix of the upper eight bits is added to form pUIMID (Pseudo-UIMID), and stored in the existing UIMID basic file EF of the UIM card R-UIMID inside.

[0023] The pUIMID replaces the UIMID and is transmitted in the air interface, the A interface, and the Mobile Application Protocol (MAP) message, so as to make the extended UIMID number compatible with the terminal and the network.

[0024] The terminal reads the pUIMID information of the UIM card and replaces the UIMID to participate in authentication, PLCM generation, reverse random access of the MAC layer, address addres...

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Abstract

The invention relates to a method for upgrading card number of a CDMA user identity module, which comprises that: step one, identification codes of an integrated circuit in the user identity module are compressed into 24 bits, produce fake identification codes of the user identity module after being added with a prefix of 8 bits and are stored in the user identity module; step two, the fake identification codes of the user identity module of a mobile terminal are read from a UIM card and transferred in the messages of a hollow port, an A interface and MAP agreement to realize the functions of a UIMID. The invention can realize the number upgrading of the UIMID of the UIM card at a set-card separation terminal and solves the shortage problem of CDMA card number. The invention does not need to change network equipment and users do not need to change cards.

Description

technical field [0001] The invention relates to a CDMA mobile communication system, in particular to a system and method for upgrading the UIM card number of a CDMA user identification module. Background technique [0002] With the vigorous development of mobile communication, the electronic serial number (ESN), which is used to uniquely identify the number of CDMA mobile terminals, is facing the serious challenge of insufficient resources. ESN consists of 8-bit manufacturer code and 24-bit serial number, with a total capacity of only about 4.3 billion. Due to the fact that multiple numbers of CDMA, analog advanced mobile phone system AMPS, digital advanced mobile phone system D-AMPS and other multi-technology standards share this number segment, and the terminal numbers are not evenly distributed and will not be recycled after distribution, the number resources will soon run out. [0003] In addition to being used as a globally unique identification code for CDMA terminal...

Claims

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Application Information

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IPC IPC(8): H04Q7/32H04Q7/34
Inventor 张范张智江李晓明邹欣刘东明严砥贾川康建雄李香平
Owner CHINA TELECOMM CORP