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SIM (Subscriber Identity Module) card and system supporting mobile communication network switching

A mobile communication network and operating system technology, applied in the fields of telecommunications, smart cards, and computer technology, can solve problems such as high resource costs, resource waste, and complicated user handling processes, and achieve the effects of convenient use and cost saving

Inactive Publication Date: 2015-04-08
BEIJING WATCH DATA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, not only the user's handling process is complicated, but the SIM card needs to be replaced again, which also causes a waste of resources.
For a virtual operator that has obtained three basic operator licenses at the same time, it also needs to issue and manage three types of SIM cards, which has a high resource cost

Method used

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  • SIM (Subscriber Identity Module) card and system supporting mobile communication network switching
  • SIM (Subscriber Identity Module) card and system supporting mobile communication network switching
  • SIM (Subscriber Identity Module) card and system supporting mobile communication network switching

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Experimental program
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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] Such as figure 1 , figure 2 As shown, a method for handover of a mobile communication network includes the following steps:

[0046] Step (1): The service acceptance system receives the service request of the terminal user, and sends the service request to the remote service management system. The service request includes the number of the first mobile user, the type of the network to be switched and the second mobile User number; the first mobile user number is the mobile user number before applying for network switching, that is, the mobile user number currently used by the terminal user; the type refers to the classification according to the basic operator, the basic operator Including China Mobile, China Unicom, and China Telecom; the second mobile subscriber number is the mobile subscriber number after network switching, that is,...

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Abstract

The invention relates to an SIM (Subscriber Identity Module) card and a system supporting mobile communication network switching. The conventional mobile communication network switching method requires replacing the SIM card of a user. The SIM card comprises a microprocessor CPU (Central Processing Unit), a program memory ROM (Read Only Memory), a working memory RAM (Random Access Memory), a data memory EEPROM (Electrically Erasable Programmable Read-Only Memory), a serial communication unit and an in-card operating system, wherein the in-card operating system comprises a COS (Chip Operating System). The operating system in the SIM card further comprises an application module for storing different types of applications in a grouping way, a receiving and transmitting module for receiving a command issued by a remote service management system, and a management module for processing the command received by the receiving and transmitting module, including writing personalized data into the storage directory of a corresponding application in the application module according to an application marker, calling the application module to perform application state management, and switching the application into which the personal data is written into a valid application. By adopting the SIM card and the system disclosed by the invention, a communication network can be switched without replacing the SIM card.

Description

technical field [0001] The invention belongs to the field of computer technology, smart card and telecommunication communication, and in particular relates to a SIM card and a system supporting mobile communication network switching. Background technique [0002] SIM (Subscriber Identity Module) card is the abbreviation of Customer Identification Module, also known as Subscriber Identity Card, which is used for mobile communication network to identify the identity of terminal users, and encrypt the voice information when users talk, as a mobile communication service SIM card is the main bridge for telecom operators to communicate with users. [0003] With the renewal and development of mobile communication network technology, users' demand for telecommunication services is constantly increasing. In order to urge basic telecommunication operators to improve their competitiveness, expand the industry scale, and provide more personalized services to subdivided consumers , usin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W88/02
CPCH04W36/14H04W88/06
Inventor 赵敏
Owner BEIJING WATCH DATA SYST
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