TWI566573B - Method of performing network personalization on mobile devices - Google Patents

Description

Method of personalizing a mobile device network

The present invention relates to a method for personalizing a mobile device, and more particularly to a method for accurately distinguishing a mobile device from a cooperative carrier.

A Subscriber Identity Module (SIM) card is a smart card used to store user identification data for mobile phone services. It can also be used to store SMS messages and phone numbers. In terms of external hardware, the SIM card is composed of a central processing unit (CPU), a read-only memory (ROM), a random access memory (RAM), and an electronically smeared It consists of components such as electrically erasable programmable read-only memory (EEPROM) and input/output (I/O) circuits. In terms of internal data, the SIM card adopts a hierarchical logical data structure, which includes three types: elementary file (EF), dedicated file (DF), and master file (MF). data of.

According to the specification TS 22.022 of the 3rd Generation Partnership Project (3GPP), mobile equipment (ME) contains five types of personalization: network personalization, network Network subset personalization, service provider personalization, corporate personalization, user identification module/SIM/USIM personalization. After the user inserts the SIM card into the mobile device, the user identity can be identified on the one hand during the boot process, and other information such as the operator network or the memory phone number can be identified on the other hand. The user actually uses the mobile device to issue commands to the SIM card, which should be executed or rejected according to standard specifications and their settings.

In the prior art network personalization method, the mobile device obtains a mobile country code (MCC) and a mobile network code (MNC) of a specific network as comparison data. After each boot, the mobile device reads the contents of the currently installed SIM/USIM card (International Mobile Subscriber Identity Elementary File, EF_IMSI) to obtain the embedded MCC and MNC, and then judges whether the MCC and the MNC are In line with the memory comparison data, the mobile device can only operate in the normal mode when the data matches. In other words, when a particular mobile device is personalized via the Internet, it can only be operated when a SIM card issued by a particular carrier is installed. If this mobile device is accidentally lost, others will not be able to use the SIM card issued by other carriers to use it.

Figure 1 is a schematic diagram of a SIM card base file EF_IMSI as defined by the 3GPP specification TS 51.011. As shown in field 10, bytes 2 through 9 are used to store IMSI data. According to the 3GPP specification TS 23.003, the IMSI data embeds the MCC and the MNC. The MCC consisting of three-digit codes can uniquely identify the country of the carrier, and the MNC composed of two-digit or three-digit codes can uniquely identify the telecommunications. The public land mobile network (PLMN) of the industry.

If Carrier A and Carrier B are cooperators, the International Mobile Subscriber Identification Base File EF_IMSI in the SIM card issued by both will have the same MCC and MNC. Therefore, for different SIM cards issued by Carrier A and Carrier B, the prior art network personalization method cannot distinguish the usage rights of the two on a specific mobile device.

The present invention provides a method for personalizing a mobile device, comprising: acquiring a first active command of a specific type in a specific smart card; reading a first active method in the first active command Identification code; storing the first Alpha identification code into a mobile device as a comparison data; after the mobile device is powered on, obtaining one of the specific types from the current smart card in the installation Actively commanding, and reading a second Alpha identification code of the second active command; and when determining that the second Alpha identification code conforms to the comparison data, the mobile device enters a normal mode. The specific type is a type of "setting menu" defined in a third generation cooperation plan specification TS 11.14.

100‧‧‧ field

210~300‧‧‧Steps

Figure 1 is a schematic diagram of the International Mobile Subscriber Identity Code Base File EF_IMSI as defined by the 3GPP specifications.

2 is a flow chart of a method for personalizing a mobile device in the present invention.

SIM Toolkit (STK) is a smart card The standard interface tool for developing application services enables applications in smart cards to interact and operate correctly with any brand of mobile device. In this way, through the support of STK, telecom operators can cooperate with other industries to develop various types of value-added services, such as bank wealth management, stock information, weather reports, cable TV program schedules, flight schedules, and so on. The invention can be applied to a system supporting STK function, and provides a network personalization method for mobile devices, which can more accurately distinguish smart cards invented by different telecommunication operators.

The network personalization method of the present invention can be applied to different kinds of mobile devices, including mobile phones, personal digital assistants (PDAs), handheld computers, tablet computers, and nettops. A computer, laptop, or other device that supports STK. However, the type of mobile device does not limit the scope of the present invention.

In the mobile device to which the network personalization method of the present invention is applied, different types of STK smart cards can be installed therein, such as a SIM card of a global system for mobile communications (GSM) system capable of supporting STK functions. , USIM card of universal mobile telecommunications system (UMTS), removable user identity module (R-UIM) card of code division multiple access (CDMA) system And CDMA User Identity Module (CSIM) cards. Although the present invention has been described with reference to a SIM/USIM card, the type of smart card installed in the mobile device does not limit the scope of the present invention.

In the mobile device to which the network personalization method of the present invention is applied, STK smart cards of different sizes can be installed therein, for example, a standard SIM card (Micro SIM), a micro SIM card (Micro SIM) or a nanochip that can support the STK function. Rice SIM card (Nano SIM) and so on. However, the size of the smart card installed in the mobile device does not limit the scope of the present invention.

2 is a flow chart of a method for network personalization of a mobile device according to the present invention, which includes the following steps.

Step 210: Acquire one of the specific types of the first active command from a specific smart card; perform step 220.

Step 220: Read a first Alpha identifier in the active command; perform step 230.

Step 230: Determine whether a pre-personalization check is passed; if yes, execute step 240; if no, execute step 300.

Step 240: The first Alpha identification code is stored in the mobile device as the comparison data, and the parameters of the related network personalization are set, and step 250 is performed.

Step 250: The mobile device is rebooted, and step 260 is performed.

Step 260: The mobile device obtains one of the specific types of second active commands from an existing smart card in the installation; and performs step 270.

Step 270: Determine whether a second Alpha identification code in the second active command conforms to the comparison data; if yes, go to step 280; if no, go to step 290.

Step 280: The mobile device enters the normal mode.

Step 290: The mobile device enters the restricted mode.

Step 300: End network personalization.

According to the 3GPP specification TS 11.14, smart cards that support STK functions can send many different types of active commands, such as "CLOSE CHANNEL", "OPEN CHANNEL", "DISPLAY" TEXT)", "LANGUAGE NOTIFICATION", "SEND DATA", "SEND SHORT MESSAGE", "SET UP CALL", and "SET UP MENU" )"Wait. In the embodiment of the present invention, the specific type in step 210 is the "set menu" type.

According to the 3GPP specification TS 11.14, the "set menu" type of active command contains many types of type-length-value (TLV) objects, such as "active command tags", "length", "command details", "Device identification", and TLV objects such as "Alpha ID". According to the content of the "Alpha ID" TLV object, the present invention can extract the corresponding bit from the first active command in step 220 to obtain the first Alpha identification code.

In step 230, the present invention determines whether or not to pass the pre-personalization confirmation. According to the 3GPP specification TS 22.022, pre-personalization confirmation is required before any changes are made in each type of personalization cycle to ensure that the following two conditions are met.

Condition 1: The specific type of personalization to be performed has not yet been initiated.

Condition 2: The personalization comparison data to be stored in relation to a particular type needs to be a subset of the existing personalization code.

For example, if the Internet personalization has been completed before, and now you want to modify the content of the network personalization, you must first perform de-personalization for the network personalization, condition 1 will be established. If the existing personalization code already contains the comparison data SU1 previously for SIM/USIM personalization, and in step 220, the comparison data N1 related to the network personalization is obtained, and the existing personalized code needs to be (SU1-N1). The way to update, condition 2 will be established. If the existing personalization code is updated in the way of (SU2-N1), Condition 2 will not hold. If one of Condition 1 and Condition 2 does not hold, the present invention performs step 300 to end the network personalization.

If the pre-personalization is confirmed, the present invention stores the first Alpha identification code obtained in step 220 into the mobile device as the comparison data in step 240, and sets the parameters of the relevant network personalization. According to the 3GPP specification TS 22.022, the parameters for setting the relevant network personalization include the state of depositing a network control key NCK and setting a network personalization indicator. The network personalization control key NCK can be a decimal string of 8 to 16 bits, which is usually randomly assigned by the operator. After the network personalized control key NCK is stored in the mobile device, and then the network is depersonalized. You must first enter the correct network personalization control key NCK. The network personalization indicator is used to indicate that the network personalization is in an ON/OFF state, and the present invention sets the network personalization indicator to an "ON" state in step 240, which represents the activated network. Road personalization. Therefore, the mobile device needs to perform the corresponding confirmation step at the time of power-on, which will be explained later.

After the mobile device is rebooted in step 250, a second type of active command of a particular type is then retrieved from the existing smart card in the installation in step 260, and a second second method in the second active command is determined in step 270. Whether the code matches the comparison data. In the embodiment of the present invention, the specific type in the step 260 is a “set menu” type, and the corresponding bit can be extracted from the second active command according to the content of the “Alpha ID” TLV object to obtain the first Two Alpha identification codes.

According to the 3GPP specification TS 11.14, the "set menu" type of active command is to provide a user-set menu, and the "Alpha ID" TLV object stores the content related to the menu title. Smart card issued for carrier A A and the smart card B issued by the carrier B, the Alpha identification code in the "set menu" type active command obtained by the smart card A corresponds to the name of the carrier A, and the "set menu" obtained by the smart card B The Alpha identification code in the type active command will correspond to the name of the carrier B.

In step 270, the mobile device determines whether the second Alpha identification code conforms to the comparison data. If the data is consistent, the existing smart card currently installed and the smart card used in the previous execution of the network personalization are all issued by the same service provider. At this time, step 280 is executed to enter the normal mode, and the user can use the mobile device. All the features that have been requested. If the data does not match, the existing smart card currently installed and the smart card used in the previous execution of the network personalization are not issued by the same service provider. At this time, step 290 is executed to enter the restricted mode. The restricted mode can be the "emergency calls only mode" defined in the 3GPP specification TS 22.022, and the mobile device uses the temporary location user register (VLR) assigned temporary mobile subscriber identity (temporary mobile Subscriber identity, TMSI) to send out emergency calls.

The present invention uses the Alpha identification code in the "set menu" type active command obtained from the smart card supporting the STK function as the comparison data of the network personalization, and therefore does not need to judge the content of the basic file EF_IMSI. That is to distinguish between different service providers. In the present invention, the present invention is directed to different smart cards issued by the carrier A and the carrier B, respectively, even if the carrier A and the carrier B have the same MCC and MNC in the smart card issued by the partner for the cooperation. The network personalization method can also accurately distinguish the usage rights of the two on a specific mobile device.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

210~300‧‧‧Steps

Claims (9)

A method for performing network personalization on a mobile device, comprising: obtaining a first proactive command of a specific type in a specific smart card: reading the first active command a first Alpha identifier; storing the first Alpha identification code in a mobile device as a comparison data; the mobile device is powered on, from one of the installations currently The smart card obtains one of the second active commands of the specific type, and reads a second Alpha identification code of the second active command; and when determining that the second Alpha identification code meets the comparison data The mobile device enters a normal mode, wherein the specific type is a type of "SET UP MENU" defined in the 3rd Generation Partnership Project (3GPP) specification TS 11.14. The method of claim 1, further comprising: when determining that the second Alpha identification code does not conform to the comparison data, the mobile device enters a restricted mode. The method of claim 2, wherein the mobile device is capable of performing more operations in the normal mode than in the restricted mode. The method of claim 1, further comprising: determining whether to pass a pre-personalization check; When it is judged that the pre-personalization confirmation is passed, the first Alpha identification code is stored in the mobile device as the comparison data. The method of claim 4, wherein the pre-personalization confirmation comprises: confirming that the network personalization has not been initiated; and confirming that the first Alpha identification code obtained from the particular smart card is an existing personalization A subset of the code. The method of claim 1, further comprising: depositing a network control key into the mobile device; and setting a network personalization indicator to a startup state. . The method of claim 1, wherein the mobile device, the specific smart card, and the current smart card support a Subscriber Identity Module Toolkit (STK). The method of claim 1, further comprising: storing, for the first service provider that is one of the specific smart cards, information related to the first service provider name in the first active command The third generation cooperation plan specifies one of the first "Alpha ID" type-type-length-value (TLV) objects defined in TS 11.14; and a second service for issuing one of the current smart cards. a provider, storing information related to the second service provider name in the second active command, one of the second "Alpha identification codes" defined by the third generation cooperation plan specification TS 11.14 Inside the TLV object. The method of claim 8, further comprising: the mobile device extracting a corresponding bit from the first active command according to the first "Alpha ID" TLV object to obtain the first Aier And the mobile device extracts the corresponding bit from the second active command according to the second “Alpha ID” TLV object to obtain the second Alpha identification code.