KR20070033696A - Method for improving the boot speed of a communication terminal and a communication terminal employing the method - Google Patents

Abstract

The present invention relates to a method for improving a boot speed of a communication terminal and a communication terminal employing the method. More particularly, the communication terminal identifies an initialization restriction target during booting and controls an initialization operation for the identified object. A booting speed improving method of a terminal and a communication terminal employing the method. The booting speed of the communication terminal can be improved by identifying an initialization restriction target including a variable recorded in a device or a memory while booting in the communication terminal according to the present invention, and controlling not to perform the initialization of the identified initialization restriction target. have.

Communication terminal, boot, initialization, control

Description

Method for improving the boot speed of a communication terminal and a communication terminal employing the above-described method {METHOD FOR ENHANCING BOOTING SPEED OF COMMUNICATION TERMINAL AND COMMUNICATION TERMINAL OF ENABLING THE METHOD}

1 is a flowchart illustrating an operation method of improving a booting speed in a communication terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a method of controlling initialization for a device according to an embodiment of the present invention.

3 is a flowchart illustrating a method for initializing and controlling local variables included in a ZI (Zero Initial) area according to another embodiment of the present invention.

4 is a flowchart illustrating a method for initializing and controlling a variable allocated in a HEAP region according to another embodiment of the present invention.

5 is a block diagram showing an internal configuration of a communication terminal according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

500: communication terminal

501: NAND flash memory

502: SDRAM

503: boot management unit

The present invention relates to a method for improving a boot speed of a communication terminal and a communication terminal employing the method. More particularly, the communication terminal identifies an initialization restriction target during booting and controls an initialization operation for the identified object. A booting speed improving method of a terminal and a communication terminal employing the method.

Today's remarkable development of communication technology has rapidly promoted the popularization of communication terminals (mobile devices), and now most of the general people always have communication terminals such as mobile phones and PDAs.

The services provided by such communication terminals gradually diversified from the basic voice call services and text services that have been provided with the development of communication technology and the increasing use of users, such as games, wireless Internet, camera photography, MP3. Music, etc.). In addition, due to the wireless Internet service provided by the communication terminal, users can download and store various types of contents in the communication terminal.

In order to use such diverse services, a communication terminal having more various functions needs a storage medium capable of storing a large amount of data.

In general, a communication terminal uses a NAND flash memory or a NOR flash memory as a storage medium for data.

Conventionally, NOR flash memory has been used as a storage medium. Recently, however, NAND flash memory has many advantages as a storage medium than NOR flash memory, and thus, NAND flash memory is used more than NOR flash memory. The advantage of NAND flash memory is that it stores a larger amount of data than NOR flash memory, writes faster than NOR flash memory, which has a slower write speed, and is cheaper than NOR flash memory because the unit cost per unit space is low.

The booting process in the communication terminal using the NAND flash memory as a storage medium copies the boot execution code written in the NAND flash memory to the SRAM, and executes the copied boot execution code in the SRAM to complete booting. It was. In the process of executing the plurality of boot execution codes, the device, the memory, and the like are initialized through a predetermined initialization operation.

However, the conventional method of initializing at boot time in a communication terminal has a problem of slowing down the boot speed by consuming unnecessary initialization time at boot time because all variables recorded in a device or a memory that do not require initialization at boot time are also initialized.

The present invention has been made to solve the problems of the prior art as described above, and identify the initialization restriction target included in the communication terminal during booting from the communication terminal, and controls not to perform the initialization of the identified initialization restriction target. In addition, the purpose is to improve the boot speed of the communication terminal.

The present invention is to improve the boot speed of the communication terminal by copying the boot execution code recorded in the NAND flash memory in the SDRAM by copying to the SDRAM, except for the variable that is not necessary to initialize during booting.

In order to achieve the above object and to solve the above problems of the prior art, the boot speed improving method according to an embodiment of the present invention, the communication terminal includes a NAND flash memory and SDRAM, Copying the recorded boot execution code and writing it to the SDRAM; And executing the boot execution code recorded in the SDRAM, wherein the executing the boot execution code recorded in the SDRAM includes: identifying an initialization limit target according to a predetermined standard through a predetermined initialization control module; ; And controlling initialization of the identified initialization restriction subject based on a predetermined restriction method.

According to another embodiment of the present invention, the communication terminal includes a NAND flash memory and an SDRAM, copies the boot execution code written in the NAND flash memory, writes the data to the SDRAM, and executes the boot execution code recorded in the SDRAM. And a boot management unit, wherein the boot management unit identifies an initialization restriction target according to a predetermined criterion through a predetermined initialization control module, and controls initialization of the identified initialization restriction target based on a predetermined restriction method. It features.

The communication terminal of the present invention is a PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, hand-held PC (Hand-Held PC), CDMA-2000 (1X, 3X) phone, WCDMA (Wideband CDMA) phone , Dual Band / Dual Mode phones, Global Standard for Mobile (GSM) phones, Mobile Broadband System (MBS) phones, notebook computers, and the like.

Hereinafter, an operation method of improving a boot speed in a communication terminal according to the present invention and a communication terminal employing the method will be described in detail with reference to the accompanying drawings.

1 is a flowchart illustrating an operation method of improving a booting speed in a communication terminal according to an embodiment of the present invention.

First, in step 101 the communication terminal comprises a NAND flash memory and an SDRAM. The NAND flash memory stores boot execution code and an application program. In addition, the NAND flash memory cannot directly execute the boot execution code to execute the boot execution code using the SDRAM.

In step 102, the communication terminal copies the boot execution code written in the NAND flash memory and writes it to the SDRAM.

According to an embodiment of the present invention, the communication terminal identifies a local variable limiting initialization included in the NAND flash memory according to a predetermined criterion, and excludes the identified local variable from the boot execution code in the SDRAM. Can be copied. The local variable that limits the initialization is a local variable that resides within a function of the boot executable code written to the NAND. The predetermined criterion may be a local variable used after performing an initialization operation in the function.

In step 103, the communication terminal executes boot execution code recorded in the SDRAM.

In step 104, the communication terminal identifies a subject to be initialized according to a predetermined criterion through a predetermined initialization control module.

In step 105, the communication terminal controls the initialization for the identified initialization restriction object based on a predetermined restriction method.

According to an exemplary embodiment of the present invention, a process of controlling initialization by identifying an initialization restriction target of steps 104 and 305 will be described in more detail with reference to FIGS. 2 to 4.

According to an embodiment of the present invention, the initialization limit target may be one or more devices included in the communication terminal. For example, the device may be a camera device, an MP3 player device, or the like.

2 is a flowchart illustrating a method of controlling initialization for a device according to an embodiment of the present invention.

In step 201, the communication terminal may identify one or more devices that limit initialization according to the predetermined criterion through a predetermined initialization control module. The predetermined criterion may be a device that can be initialized at the time of use without being initialized at boot time.

In step 202, the communication terminal may control not to perform the initialization of the identified device.

In addition, according to another embodiment of the present invention, the initialization limit object may include one or more local variables included in a zero initialization (ZI) region of the SDRAM. The local variable is a local variable present in a function of the boot executable code copied to the SDRAM.

3 is a flowchart illustrating a method for initializing and controlling local variables included in a ZI (Zero Initial) area according to another embodiment of the present invention.

In step 301, the communication terminal may identify one or more local variables that limit initialization according to the predetermined criterion through a predetermined initialization control module. The predetermined criterion may be a local variable used after performing an initialization operation in the function.

In step 302, the communication terminal may control not to perform initialization by setting the identified local variable to be located in a predetermined non-initialized area.

4 is a flowchart illustrating a method for initializing and controlling a variable allocated in a HEAP region according to another embodiment of the present invention.

In step 402, the communication terminal may identify a variable allocated in the HEAP region of the SDRAM that limits initialization through a predetermined initialization control module.

In step 402, the communication terminal may set the identified variable to be located in a predetermined non-initialized area so as not to perform initialization.

5 is a block diagram showing an internal configuration of a communication terminal according to an embodiment of the present invention.

As shown in FIG. 5, the communication terminal 500 includes a NAND flash memory 501, an SDRAM 502, and a boot management unit 503.

The communication terminal 500 includes a NAND flash memory 501 and an SDRAM 502.

The boot management unit 503 copies the boot execution code recorded in the NAND flash memory 502, writes it in the SDRAM 502, and executes the boot execution code recorded in the SDRAM 502.

In addition, the boot management unit 503 identifies an initialization limiting object according to a predetermined criterion through a predetermined initialization control module while executing the boot execution code, and initializes the identified initialization limiting object based on a predetermined limiting method. To control. According to an embodiment of the present invention, the initialization limit object is one or more devices included in the communication terminal, one or more local variables included in a ZI (Zero Initial) area of the SDRAM, or a variable allocated in the HEAP area of the SDRAM. Can be.

According to an embodiment of the present disclosure, the boot management unit 503 may identify one or more devices that limit initialization through a predetermined initialization control module and control not to perform initialization for the identified device.

Further, according to another embodiment of the present invention, the boot management unit 503 identifies one or more local variables that limit initialization through a predetermined initialization control module, and locates the identified local variables in a predetermined non-initialized area. It can be set to control not to initialize the local variable.

Further, according to another embodiment of the present invention, the boot management unit 503 identifies a variable allocated in the HEAP region of the SDRAM that limits initialization through a predetermined initialization control module, and assigns the identified variable to a predetermined value. It may be set to be located in the non-initialization area so as not to initialize the variable.

An operating method of improving a booting speed in a communication terminal according to the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

The booting speed of the communication terminal can be improved by identifying an initialization restriction target including a variable recorded in a device or a memory while booting in the communication terminal according to the present invention, and controlling not to perform the initialization of the identified initialization restriction target. have.

According to the present invention, when the booting terminal copies the boot execution code recorded in the NAND flash memory and writes it to the SDRAM, the booting speed of the communication terminal can be improved by copying the variable except for unnecessary initialization during booting.

Claims (10)

In the operating method to improve the boot speed in the communication terminal, The communication terminal comprises a NAND flash memory and an SDRAM; Copying the boot execution code written in the NAND flash memory and writing it to the SDRAM; And Executing a boot execution code recorded in the SDRAM Including, The step of executing the boot execution code written in the SDRAM, Identifying a subject to be initialized according to a predetermined criterion through a predetermined initialization control module; And Controlling initialization for the identified initialization restriction subject based on a predetermined restriction method Boot speed improvement operation method comprising a. The method of claim 1, The initialization limit object includes at least one device included in the communication terminal, The step of identifying the initialization restriction target, Identify one or more devices that limit initialization according to a predetermined criterion through a predetermined initialization control module, The step of controlling the initialization for the identified initialization limit object based on a predetermined restriction method, And controlling not to perform initialization on the identified device. The method of claim 1, The initialization restriction object includes one or more local variables included in a zero initial area (ZI) of the SDRAM, wherein the local variables are local variables existing in a function of the boot execution code copied to the SDRAM; The step of identifying the initialization restriction target, Identify one or more local variables that limit initialization on a predetermined basis through a predetermined initialization control module, The step of controlling the initialization for the identified initialization limit object based on a predetermined restriction method, And setting the identified local variable to be located in a predetermined non-initialization area so as not to perform initialization of the local variable. The method of claim 1, The initialization limit object includes a variable allocated in the HEAP region of the SDRAM, The step of identifying the initialization restriction target, Identify a variable allocated in the HEAP region of the SDRAM for limiting initialization according to a predetermined reference through a predetermined initialization control module, The step of controlling the initialization for the identified initialization limit object based on a predetermined restriction method, And setting the identified variable to be located in a predetermined non-initialization area so as not to perform initialization of the variable. The method of claim 1, The step of copying the boot execution code written in the NAND flash memory and writing to the SDRAM, Identifying a local variable that limits initialization included in the NNAD flash memory according to a predetermined criterion, and copying the boot execution code to the SDRAM excluding the identified local variable; Way. A computer-readable recording medium in which a program for executing the method of any one of claims 1 to 5 is recorded. In a communication terminal employing an operation method for improving the boot speed, Includes NAND flash memory and SDRAM, A boot management unit which copies the boot execution code written in the NAND flash memory, writes the data to the SDRAM, and executes the boot execution code recorded in the SDRAM. Including, The boot management unit, And identifying an initialization limiting object according to a predetermined criterion through a predetermined initialization control module, and controlling initialization of the identified initialization limiting object based on a predetermined limiting method. The method of claim 7, wherein The initialization restriction target is one or more devices included in the communication terminal, The boot management unit, Identify one or more devices that limit initialization through a given initialization control module, The limiting method is And control not to perform initialization for the identified device. The method of claim 7, wherein The initialization restriction object includes one or more local variables included in a zero initial area (ZI) of the SDRAM, wherein the local variables are local variables existing in a function of the boot execution code copied to the SDRAM; The boot management unit, Identify one or more local variables that limit initialization through a given initialization control module, The limiting method is And setting the identified local variable to be located in a predetermined non-initialization area so as not to perform initialization of the local variable. The method of claim 7, wherein The initialization limit object is a variable allocated in the HEAP region of the SDRAM, The boot management unit, Identify a variable allocated in the HEAP region of the SDRAM that limits initialization through a predetermined initialization control module, The limiting method is And setting the identified variable to be located in a predetermined non-initialized area so as not to perform initialization of the variable.

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