KR100651539B1 - How to update function of mobile terminal - Google Patents

Abstract

In the mobile communication system having a mobile terminal management server having software for updating the function of the mobile terminal, the method of updating the function of the mobile terminal is to set the wireless channel when the mobile terminal needs to update the function and set the wireless channel through the set wireless channel. Generating and transmitting a function service request message to the management server; and the mobile terminal transmits a message including its own hardware information to the management server, and accordingly, the management server transmits the module information of the updatable functions to the mobile terminal. Process, the mobile terminal displays the module information on the display window, generates a download list message according to the selected functions among the displayed functions, and transmits the downloaded list message to the mobile terminal management server; It creates a file and sends it to the mobile terminal. The process of downloading the files and updating the function of the mobile terminal.

Mobile terminal, function update, download, management server

Description

How to update function of mobile terminal {METHOD FOR UPDAING FOR FUNCTION IN MOBILE PHONE}             

1 is a diagram illustrating a system of a mobile communication system.

2 is a flowchart illustrating a procedure between a mobile terminal, a base station, and a server for a function management service in FIG.

3 is a diagram showing the configuration of a message format for function management;

4 is a flowchart showing the operation of the function management client program of the mobile terminal.

5 is a diagram illustrating a boot code flow of a mobile terminal.

6 is a flowchart showing the operation of the function management service program of the server;

The present invention relates to a method for updating a function of a mobile terminal, and more particularly, to a method for updating a function on a wireless online.                         

Currently, there are many types of mobile terminals, and mobile terminals having new functions continue to appear. In addition, as new functions are added, the software (S / W) embedded in the mobile terminal is frequently updated. In this case, in order to add a new function to a user's mobile terminal, the user has to visit a distributor or service center of a manufacturing company and update a software program having a new function.

That is, the conventional method for updating the mobile terminal S / W is possible only by using a specific S / W download program. The reason is that since hardware (H / W) resources of mobile terminals are limited compared to general computers, there is no method for dynamically adding a function such as a dynamic linked library (DLL). Therefore, all functions should be made into a single executable image file and downloaded to the nonvolatile memory of the mobile terminal. However, since the conventional method is not disclosed to the general user, it is cumbersome to visit a specific place such as an agency or a service center in order to update the S / W of the mobile terminal.

It is therefore an object of the present invention to provide a method in which a mobile terminal can access a specific server using a wireless data communication link and update necessary functions online.

A mobile communication system according to an embodiment of the present invention for achieving the above object comprises a mobile terminal management server having software for updating the function of the mobile terminal, the mobile communication system when the mobile terminal needs to update the function Setting a wireless channel, generating and transmitting a function service request message to the mobile terminal management server through the set wireless channel, and transmitting a message including the hardware information of the mobile terminal to the management server; Accordingly, the management server transmits the module information of the updateable functions to the mobile terminal, and the mobile terminal displays the module information on the display window, and generates a download list message according to the selected functions among the displayed functions. Transmitting the mobile terminal management server to the mobile terminal management server; And the server is transmitted to the mobile station to produce the software according to the message as a file download list, the mobile terminal updates the function of the mobile to the process of updating the function of the mobile terminal to download the file of the terminal.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

According to an embodiment of the present invention, the configuration of the S / W management service for the mobile terminal to update the function on the wireless online is shown in FIG.

Referring to FIG. 1, the mobile terminal 110 performs wireless communication with the base station 120, and the base station has a program for updating a function of the mobile terminal through the Internet network 130 (hereinafter referred to as a mobile phone management server: MPMS). Perform a wired communication with 140. Therefore, when the mobile terminal 110 generates a message requesting a function update, the message is applied to the MPMS 140 through the base station 120 and the Internet network 130. The MPMS 140 generates an update message according to the request of the mobile terminal 110. The mobile terminal 110 transmits the information to the mobile terminal 110 through the Internet network 130 and the base station 120. In this case, the mobile terminal 110 receives and processes a message for updating its function while performing wireless communication with the base station 120 as described above.

For the S / W management service as described above, the mobile terminal 110 requires a non-volatile memory such as a flash memory and an EEPROM. In addition, the mobile terminal should embed a separate program for the S / W management service. The flash memory includes a boot code area, an executable code area, and a download area.

The boot code is the part that is executed first when power is applied to the mobile terminal. It performs hardware initialization of the mobile terminal and checks the software update information stored in a specific area of the nonvolatile memory device. Copy the file to the Executable Code area so that the updated software can be executed. The executable code area stores executable codes of all S / W modules used in the mobile terminal except for boot codes. The download area is a space for storing a file downloaded from the MPMS140. All flash memory areas except for the boot code area and the executable code area are included therein.

The nonvolatile memory device of the mobile terminal 110 stores the S / W management service tables. The nonvolatile memory device of the mobile terminal 110 includes an address, a size, an update of a file downloaded from the MPMS140, a start address of a download area of a flash memory, Size, etc. are stored. This information is used by the boot code and software management program.

The structures of the nonvolatile memory device and the flash memory required for the S / W management service may be configured as shown in Tables 1 and 2, respectively. Table 1 below shows the structure of the nonvolatile memory device, and Table 2 shows the structure of the flash memory.

  Download file address   Download file size   File Update Flag   Download area start address   Download area size

  Download area   Execution Code Area   Bootcode area

A process of updating a function according to an embodiment of the present invention by the mobile terminal having the above structure will be described in detail.

When the S / W module of a mobile terminal of a specific model is updated or added, the MPMS (Mobile Phone Management Server) searches for a mobile terminal database and uses a new S / W message by using a Short Message Service (SMS) message to the mobile terminal of the model. Announce that there is. Then, the user of the mobile terminal receiving the SMS message executes the S / W management program. S / W management program operates in the following order.                     

First, the mobile terminal transmits a S / W management service request message to a mobile phone management server (MPMS) using a wireless data protocol. MPMS performs the mutual authentication process using the terminal number of the S / W management service request message. This allows you to determine whether you are a legitimate user or a trusted server. Various methods have been developed for the algorithm required for the mutual authentication, and embodiments of the present invention can be implemented using one of the above methods.

After the mutual authentication process, the mobile terminal transmits the H / W information message to the MPMS. In this case, the H / W information includes H / W related information such as a model number of the terminal and available flash memory (storing the downloaded file). The MPMS receiving the H / W information of the mobile terminal as described above forms a list of S / W modules available in the mobile terminal as a message and transmits the message to the mobile terminal. At this time, the information on one S / W module is composed of one module information message and transmitted.

Then, the mobile terminal extracts information on each S / W module from the received S / W module list messages and displays the information on the output device such as an LCD so that the user can select a module to download. The modules selected by the user consist of a download list message and are sent back to the MPMS. The MPMS then creates a new file corresponding to the modules requested by the mobile terminal. At this time, if the generated file is larger than the available flash memory capacity of the mobile terminal, an error message is generated and transmitted to the mobile terminal. If not, however, a file transfer protocol such as FTP (File Transfer Protocol) is used to transfer the generated file to the mobile terminal.

Then, the mobile terminal records the received file in the download area of the flash memory, and transmits the service end message to the MPMS when the reception of the file is completed. The received file size, stored flash memory address, and update information are recorded in a nonvolatile memory device such as electrically erasable programmable read only memory (EEPROM) of the mobile terminal to record the received file when the mobile terminal is rebooted. Allows copying to executable code area.

Upon receiving the service termination message, the MPMS updates the database with the H / W information of the mobile terminal and the module information used.

As shown in FIG. 2, the mobile terminal communicates with the base station and the MPMS to update the function.

First, the mobile terminal requests a packet service to the base station in step 212 for a S / W management service. This is because data between the mobile terminal and the MPMS is transmitted in the form of an IP packet. In order to provide the packet service requested by the mobile station, the base station and the mobile station establish a radio channel in step 214. This follows the wireless channel establishment procedure in standards such as IS-95A, IS-95B or cdma2000. When the wireless channel for packet communication is established between the mobile terminal and the base station as described above, the mobile terminal requests an S / W management service from the MPMS in step 216. In step 218, the MPMS requesting S / W management service from the mobile terminal performs a mutual authentication procedure with the mobile terminal.                     

After the mutual authentication procedure, the mobile terminal transmits its H / W information message to the MPMS in step 220. In this case, the transmitted H / W information may include information such as a model number of the terminal and available flash memory as described above. Then, the MPMS transmits the S / W module information message which the mobile terminal can use in step 220.

When the terminal receives the S / W module information message in step 222, the mobile terminal displays the received module information on the display window, and the user of the mobile terminal selects information of a desired function from the displayed function information. do. The mobile terminal generates a list message of the functions selected by the user, and then transmits the download list message to the MPMS in step 224. Then, the MPMS generates an executable file in the mobile terminal with the modules requested by the mobile terminal, and then transmits the file to the mobile terminal using the file transfer protocol in step 226. In this case, after receiving the file, the mobile terminal transmits a service termination message to the MPMS in step 228 and releases the radio channel with the base station in step 230.

In FIG. 2, the message used in the S / W management service used between the mobile terminal and the MPMS has a structure as shown in FIG. The message format for S / W management consists of a tag, a message ID, a message length, and a message content. And the () number in each item indicates the length of the field in bytes.

Referring to FIG. 3, 'D', the most significant bit of the tag, indicates the direction of the message. If this value is 0, it is a message sent by the mobile station. If it is 1, it is a message sent by the MPMS. 'L' equal to 1 means the last message. The remaining bits are not used.

Secondly, the message ID is used as an identifier to identify the message. Message content according to the message ID can be configured as shown in Table 3 below. In <Table 3>, the message length means the length of the message content and is expressed in byte units, and the message content contains information to be actually transmitted.

Message type Message ID Message content  Service request message 0x00 Terminal number  End of service message 0x01 Update time. Year (2 byte) / Month (1 byte) / Day (1 byte) / Hour (1 byte) / Minute (1 byte) / Second (1 byte)  H / W information message 0x02 Flash memory Download area size (4 byte), H / W Model Number (message length-4 byte)    Module information message 0x03 Module ID (4 byte), version number (2 byte), version list (2 * version number), descriptor length (2 byte), module descriptor ※ descriptor length (2 byte) and module descriptor are optional  Download list message 0x04 Repeat module ID (4 byte) and version (2 byte) as much as module to download  Error message 0x05 Causes of Error  Reserved 0x06-0xFF

In Table 3, the module ID of the module information message is an identifier consisting of 4 bytes, and a module descriptor means a brief description of the function of the S / W module. The version number refers to the number of versions included in the version list, and the version list includes downloadable versions. The module version consists of a major version (1 byte) and a minor version (minor version: 1 byte).

Table 4 below shows the classification according to the module ID.

Module ID Classification 0x0000-0x00FF System S / W Module. S / W module necessary for mobile terminal to operate. OS, Call S / W, H / W device driver, etc. 0x0100-0x0FFF Reserved. 0x1000-0xFFFF Application S / W module. This includes applications that cannot run independently and operate on System S / W modules.

4 is a flowchart illustrating an operation process of an S / W management client program of a mobile terminal.

Referring to FIG. 4, the mobile terminal attempts to establish a base station radio channel in step 412 when attempting communication for a S / W management service, and then checks whether the radio channel is successfully established in step 414. The setting of the wireless channel follows a wireless channel setting procedure in a standard such as IS-95A, IS-95B, or cdma2000. If the wireless channel setup fails, the flow proceeds to step 418 to indicate that the channel setup has failed on the display window of the mobile terminal and ends. However, if the wireless channel is successfully established in step 414, in step 416, a message for requesting S / W management service is generated by the MPMS, and then transmitted through the set wireless channel. The service request message has a format as shown in FIG. 3, and the message includes a terminal number as shown in Table 3.

 The MPMS that receives the S / W management service from the mobile terminal performs a mutual authentication procedure using the number of the mobile terminal. Therefore, after transmitting the message, the mobile terminal performs a mutual authentication procedure with the MPMS in step 420 and checks whether the authentication procedure is successful in step 422. If the authentication procedure fails, the process proceeds to step 424 and outputs an authentication error message on the display window of the mobile terminal and ends.

However, if the authentication procedure is successful in step 422, the mobile terminal transmits its H / W information message to the MPMS in step 426. At this time, the H / W information message transmitted has a message format as shown in FIG. 3, and the message may include information such as a model number of the terminal and available flash memory as shown in Table 3. The MPMS that receives the H / W information message transmits an S / W module information message available to the mobile terminal. At this time, the S / W module information message transmitted also has the structure as shown in FIG. 3 and includes the information shown in Table 3. The module ID of the S / W module information message is an identifier composed of 4 bytes, and includes module classification information as shown in Table 4, and a module descriptor indicates a brief description of the function of the S / W module. . The version number refers to the number of versions included in the version list, and the version list includes a downloadable version. The module version is composed of a major version (1 byte) and a minor version (minor version: 1 byte).

The mobile terminal receives the S / W module information message transmitted by the MPMS while performing steps 428 and 430, and after receiving the module information message, the mobile terminal displays the received module information messages on the display window in step 432. Display. At this time, the user of the mobile terminal selects the information of the desired function from the displayed function information. Then, the mobile terminal generates a list message of the functions selected by the user, and transmits the download list message to the MPMS in step 434. At this time, the download list message has a structure as shown in FIG. 3, and the information included therein is module ID and version information. Then, the MPMS receives downlist messages transmitted by the mobile terminal, generates an executable file in the mobile terminal from the message to the modules requested by the mobile terminal, and then transmits the file using the protocol previously promised with the mobile terminal. . The protocol used here may use FTP (File Transfor Protocol). However, if an error of the generated file (for example, larger than the flash memory capacity of the terminal) occurs, the MPMS generates an error message including an error cause and transmits the error message to the mobile terminal.

After transmitting the download list message, the mobile terminal waits to receive the message in step 436. If the received message is an error message, the mobile terminal outputs an S / W management service error message to the display window of the mobile terminal in step 438. However, if it is not an error message in step 436, the mobile terminal downloads and stores the files for the function update transmitted to the MPMS in step 440. After the mobile terminal receives the file, in step 442, the mobile terminal transmits a service termination message to the MPMS and releases the radio channel with the base station. The service end message has a structure as shown in FIG. 3, and the service end message includes information indicating an update time of the S / W as shown in Table 3 above.

FIG. 5 is a diagram illustrating a boot code flow of a mobile terminal operating as shown in FIG. 4.

Referring to FIG. 5, the mobile terminal performs H / W initialization in step 511, and then, in step 513, the mobile terminal reads information on the S / W management service table of the nonvolatile memory device having the structure as shown in Table 1. Lead. Thereafter, the mobile terminal checks the file update flag in step 515. If the file update flag is set, the mobile terminal proceeds to step 517. In step 517, the mobile terminal copies the download area of the flash memory having the structure as shown in Table 2 into the execution code area. After the file update flag is in the reset state in step 515 or after performing step 517, the mobile terminal proceeds to the execution code area of the flash memory in step 519.

6 is a flowchart illustrating the operation of the S / W management server of the MPMS for updating the S / W of the mobile terminal according to an embodiment of the present invention. The MPMS performing the procedure of FIG. 6 is performed by the same procedure as the operation of the mobile terminal of FIG.

As described above, the information of the S / W modules of the mobile terminal can be databaseized to efficiently manage and update the S / W wirelessly, and thus there is an advantage that the user can easily update the function of the desired mobile terminal. .

Claims (5)

A method of updating a function of a mobile terminal in a mobile communication system having a mobile terminal management server having software for updating a function of the mobile terminal, Setting the wireless channel if the function needs updating; Generating and transmitting a function service request message to the mobile terminal management server through the set wireless channel; Receiving the module information of the updatable functions transmitted from the mobile terminal management server and displaying it on the display window; Generating a download list message according to the selected modules among the displayed module information and transmitting the generated list list message to the mobile terminal management server; And updating the function of the mobile terminal by downloading the files transmitted from the mobile terminal management server. The method of claim 1, further comprising: checking, by the mobile terminal, a file update flag in the software management service table during initial operation, and copying the information of the download area into the execution code area when executing, and executing the updated software. A method for updating a function of a mobile terminal characterized by the above-mentioned. The method of claim 1, further comprising, after transmitting the service request message, transmitting hardware information including the size information of the download area of the mobile terminal in order to notify the size of software that the mobile terminal can receive. A method of updating a function of a mobile terminal. The mobile terminal in a mobile communication system comprising a terminal for transmitting a service request message for updating a function by setting a wireless channel when a function update is required, and mobile terminal management servers having software for updating the function of the mobile terminal. In the management server to update the function of the mobile terminal, Generating and transmitting a module information message to the mobile terminal when the service request message transmitted from the mobile terminal is received; The mobile terminal management server comprises a process of receiving a download list message including the functions selected by the mobile terminal, and generating files of the functions according to the received list and transmitting the files to the mobile terminal. How to renew. A method of updating a function of a mobile terminal in a mobile communication system having a mobile terminal management server having software for updating a function of the mobile terminal, Setting a wireless channel when the mobile terminal needs to update a function, and generating and transmitting a function service request message to the mobile terminal management server through the set wireless channel; Transmitting, by the mobile terminal, a message including its own hardware information to the management server, thereby transmitting, by the management server, module information of updatable functions to the mobile terminal; Displaying, by the mobile terminal, the module information on a display window, generating a download list message according to selected functions among the displayed functions, and transmitting the downloaded list message to the mobile terminal management server; The mobile terminal management server comprises a software for generating a file according to the download list message to the mobile terminal, the mobile terminal is characterized in that the process of updating the function of the mobile terminal by downloading the files. How to update the function of.

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