KR100591844B1 - Method and System for downloading software using USB in Mobile Communication Terminal - Google Patents

Abstract

The present invention relates to a mobile communication terminal, and more particularly, to a technology for downloading the software used in the mobile communication terminal to the terminal using a USB port.

In the software download method of the mobile communication terminal and the system using the USES according to the present invention, the software download method of the mobile communication terminal, the step of transmitting the corresponding data from the download computer to the USB buffer in the packet unit and the data stored in the USB buffer Transmitting the packet to the download buffer of the mobile communication terminal, comparing the capacity of the data packet transmitted from the USB buffer with the capacity of the data packet transmitted to the download buffer of the terminal, and transmitting the data packet to the terminal buffer. Outputting an error message if the capacity of the data packet is larger than that of the data packet transmitted from the USB buffer, detecting header information of the packet of the data in which the error occurs, and transmitting a retransmission signal to the download computer; and downloading the terminal. Burr The data packet is stored in is characterized in that it comprises the step of writing to memory.

Therefore, the software download method and system of the mobile communication terminal using the USES according to the present invention by transferring the software mounted on the mobile communication terminal using a USB port, and prevents unnecessary data is transmitted together, the terminal development and mass production It has the effect of saving time required.

Mobile terminal, software, USB

Description

Software download method and system for mobile communication terminal using USS {Method and System for downloading software using USB in Mobile Communication Terminal}

1 is a block diagram schematically illustrating a software download system of a mobile communication terminal using a USB device according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram of a mobile communication terminal of a software download system of a mobile communication terminal using USB according to an embodiment of the present invention.

3 is a flowchart schematically illustrating an operation of a software download method of a mobile communication terminal using a USB device according to an embodiment of the present invention.

4 is a flowchart schematically illustrating an operation of a software download method of a mobile communication terminal using a USB according to another embodiment of the present invention.

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

100. Download Computer 110. USB Buffer

120.USB Controller 130.CPU

131. Download providing unit 200. Mobile communication terminal

210. Download buffer 220. Memory

230. Control unit 231. Download processing unit

240. RF unit 250. Voice signal processing unit

260. Voice memory 270. Display unit

280. Key input 290. Camera

300. Timer

The present invention relates to a mobile communication terminal, and more particularly, to a technology for downloading the software used in the mobile communication terminal to the terminal using a USB port.

With the development of mobile communication technology, operators as well as users have required terminals with various functions. Accordingly, the capacity of the software installed in the terminal is increasing, and the capacity of the memory provided in the terminal is also increasing due to the increase in various user applications.

In general, software download or upgrade of a terminal uses a serial communication port such as RS-232 provided by Qualcomm MSM for packet data transmitted from a computer. Data transmitted one byte at a time through the serial communication port

The software is stored in a buffer of 1024 bytes in total, and then in bytes of memory.

Therefore, when the capacity of the software to be transmitted to the terminal becomes very large, the transmission time increases exponentially. This is because the developer of the terminal takes a lot of time to debug the software to be installed on the terminal, download it to the terminal, and check it. There is a disadvantage in that a lot of waste in the development and mass production of the terminal.

Meanwhile, USB (USB: UNIVERSAL SERIAL BUS) has been developed for the purpose of standardizing an interface for connecting a computer with a peripheral device such as a mouse, a printer, a modem, a speaker, and the like.

USB is a serial port created by a consortium of PC manufacturers such as Intel, Compaq, Microsoft, DEC, IBM, NEC, Norton Telecom, and so on, which can be used to remove complex adapters. have. Recently, most people use the USB port to send and receive data from a mobile phone or digital camera to a computer.

While the serial speed of the serial port is less than 100K per second, USB supports data transfer speeds of 12Mbps, so even the most peripherals are fast enough to connect up to 127 devices in a chain. It can be recognized even if it is connected while using a PC, and does not require a power supply for peripheral devices. By using USB, all peripheral devices are connected to the same connector without any software or hardware setup when connecting peripheral devices to a PC. This can dramatically reduce the number of ports, simplify installation, and reduce the size of portable PCs. There is an advantage to being possible. PCs usually have two USB ports, but there is a USB hub that divides one port into multiple ports, so you can connect various peripherals.

However, if an interrupt occurs during the software or data transfer to the computer and the mobile terminal using USB, that is, an event with a higher priority than the currently running USB drive, the CPU of the computer stops the running USB. The disadvantage is the loss of data.

The present invention was devised to solve such a problem, and an object thereof is to provide a method and system for downloading a software of a mobile communication terminal using a USB that can transmit a large amount of packet unit data to a terminal at a time using a USB. have.

Another object of the present invention is to provide a software download method and a system of a mobile communication terminal using USB that can prevent transmission of unnecessary data.

Another object of the present invention is to provide a software download method and a system of a mobile communication terminal using a USB that can prevent data loss due to interruption of transmission due to an event occurring during transmission.

According to an aspect of the present invention, there is provided a software download method and system for a mobile communication terminal using USB, by dividing the corresponding software into data packets of a predetermined unit from a download computer connected to the mobile communication terminal through a USB port. send. The packet is temporarily stored in a buffer provided in the USB port of the terminal, typically a 64 byte buffer, and then transmitted to the download buffer of the mobile communication terminal by the control signal of the USB controller.                         

The download buffer of the mobile communication terminal is generally composed of a capacity of 1024 bytes. The download processing unit of the mobile communication terminal checks an operation command included in header information of a packet transmitted from the USB buffer and stores the packet in a memory or performs the operation command. The header information of the packet includes packet information such as an operation command input from a user, an address of a memory in which the data is to be stored, and a packet size. The operation instructions stored in the header information are mainly used to delete data already stored in the memory or to store data, for example.

When data of the corresponding software is transmitted to the USB buffer in packet units from the download computer connected to the mobile communication terminal, the buffer is temporarily stored and then transmitted to the download buffer provided in the terminal by the control signal of the USB controller. The download buffer stores the corresponding packet from the USB buffer and repeats waiting for the next packet to be sent. If the download buffer has a capacity of, for example, 1 kilobyte, the USB buffer and the download buffer store data packets through 16 transfers.

The download processing unit of the mobile communication terminal checks whether the capacity of the data packet stored in the download buffer matches the maximum capacity of the download buffer. For example, if a 1 kilobyte data packet was sent from the USB buffer and the data stored in the download buffer exceeded the 1 kilobyte capacity, unnecessary data remained during transmission of the data packet, for example a noise signal or data bus. Since unnecessary data is included and transmitted, the packet in error is searched through the header information of each packet.

The header information of each packet includes a user's operation command, an address of a memory in which the data packet is stored or deleted, and the data packet information. The packet information stores size information of the packet. Therefore, a packet including unnecessary data is detected and a retransmission signal including header information of the packet is output to the download computer through the USB port. When the retransmission signal of the packet is received by the download processing unit of the terminal, the download provider of the download computer retransmits the packet using the header information of the packet. The download processor of the terminal stores the packets stored in the download buffer in the memory in the order of storage.

According to a further aspect of the present invention, a software download method and a system of a mobile communication terminal using the USB according to the present invention, the header information of the packet when the transmission is interrupted because an event of a higher priority than the data transmission through the USB port occurs The retransmission signal including a transmits to the download providing unit of the download computer.

Downloading computers communicating with a mobile terminal via USB generally have a multi tasking function. Therefore, when a priority event, i.e., an interrupt occurs, in the terminal and the download computer during the download, the CPU of the download computer stops driving the USB and executes the event of the priority input. At this time, the data packet being transmitted or the data packet stored in the USB buffer may not be transmitted to the download buffer of the terminal. Therefore, the USB controller outputs an error message when there is no response (ACK) or no data packet transmission for a predetermined time after transmitting the packet from the USB buffer to the download buffer, and sends a retransmission signal of the corresponding packet where an error has occurred. Download to the download provider of the computer.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention.

1 is a block diagram schematically illustrating a software download system of a mobile communication terminal using a USB device according to an embodiment of the present invention. As shown, the software download system of the mobile communication terminal using the USB and the download computer 100 including a CPU 130 including a USB buffer 110, a USB controller 120 and the download providing unit 131 and The mobile communication terminal 200 includes a control unit 230 including a download buffer 210, a memory 220, and a download processor 231. The USB buffer 110 temporarily stores data divided into predetermined packet units input from the download providing unit 131. The USB controller 120 establishes a connection with the mobile communication terminal 200 and outputs a control signal to transmit the data packet stored in the USB buffer 110 to the download buffer 210 of the mobile communication terminal 200.

The download providing unit 131 may be configured to install or upgrade the software to be installed or upgraded in the mobile communication terminal 200 according to a developer's operation command of the mobile communication terminal 200. The data packets are sequentially transmitted to the USB buffer 110 and stored. Each packet divided by the download provider 131 includes header information which is unique information of the corresponding packet. The header information includes, for example, an operation command input from a user, such as reading, writing, or deleting data, an address of the memory 220 in which the data is to be stored, a packet size, and a data type. .

The mobile communication terminal 200 of the software download system of the mobile communication terminal using the USB according to the present invention will be described in more detail with reference to FIG. FIG. 2 is a schematic block diagram of a mobile communication terminal 200 of a software download system of a mobile communication terminal using a USB according to an embodiment of the present invention. As shown, the RF unit 240 performs a radio processing of the signal transmitted and received between the base station. For example, the RF unit 240 transitions a baseband transmission signal to a high frequency for wireless output (may go through an intermediate frequency conversion step), amplifies it, and wirelessly outputs it through the antenna ANT. The high frequency signal received from the antenna is shifted to the baseband (which may go through an intermediate frequency conversion step).

The controller 230 demodulates the radio signal, and modulates the radio signal and transmits the modulated signal to the RF unit 240. The controller 230 performs a modulation / demodulation operation in a manner preset for mobile communication. For example, the controller 230 may perform a CDMA modulation / demodulation operation such as channel coding / decoding and orthogonal code / decoding. The controller 230 basically controls the overall operation of the mobile communication terminal 200 based on the control program data stored in the memory 220. The controller 230 may also be referred to as MSM chip as is already known.

The voice signal processor 250 performs a process including voice encoding on a voice signal input through a microphone MIC according to an operation mode and transmits the voice signal to the controller 230 or will be described later under the control of the controller 230. The voice memory 260 may be transferred to the voice memory 260. In addition, the voice signal processor 250 may perform a process including voice decoding on the demodulated voice signal through the controller 230 and output the same through the speaker SPK. In general, the voice signal processor 250 includes a firmware module including an analog circuit such as an amplifier and a filter, an analog / digital conversion circuit, a digital / analog conversion circuit, and a voice compression / extension module. The voice memory 260 is accessed and controlled by the controller 230 and a plurality of voice messages are stored.

Meanwhile, the memory 220 stores control program data for controlling the operation of the mobile communication terminal 200 or data generated during the control operation of the mobile communication terminal 200 and is accessed and controlled by the controller 230.

The display unit 270, which is one of the user interface units, displays text data, an avatar, and a background screen generated by the controller 230. The key input unit 280, which is another user interface unit, includes a plurality of numeric keys for dialing and addressing, and a plurality of function keys such as a wireless Internet access key, and generates key data for each key button press to generate the key data. 230). The camera unit 290 captures an image and transmits the photographed image signal to the controller 230 by performing a process including image encoding.

According to a characteristic aspect of the present invention, the mobile communication terminal 200 according to the present invention includes a download buffer 210, and the control unit 230 of the mobile communication terminal 200 includes a download processing unit 231. The download buffer 210 temporarily stores a data packet of a predetermined unit transmitted from the USB buffer 110 of the download computer 100. In addition, when the packet stored according to the control signal of the download processing unit 231 is stored as a predetermined capacity, that is, the maximum capacity of the download buffer 210 is transmitted to the memory 220 and stored. The memory 220 is a nonvolatile memory such as a flash memory and stores data transmitted from the download buffer 210. The data or software stored in the memory 220 is controlled by the controller 230 of the mobile communication terminal 200.

When the data packet is transmitted from the USB buffer 110, the download processor 231 stores the packet in the download buffer 210. Capacity of the download buffer 210 For example, when the software to be transmitted is 20 kilobytes, the capacity of the USB buffer 110 is 64 bytes, and the total capacity of the download buffer 210 is 1 kilobyte, the USB buffer 110 is The process of storing 1 kilobyte of data into the download buffer 210 through 16 transmissions is repeated 20 times.

The download processor 231 of the mobile communication terminal 200 checks whether the 16 packet capacities transmitted and stored in the download buffer 210 match the maximum capacities of the download buffer 210. For example, if the available space of the download buffer 210 is insufficient to store the 16th transmitted packet, unnecessary data, for example, a noise signal or unnecessary data remaining on the data bus, is lost during the transmission of the packets. It can be determined that the transmission was included.

Accordingly, the download processing unit 231 retrieves the header information of each transmitted packet, deletes a packet having a size larger than the packet size information stored in the header information, and outputs an error message. In addition, the download processor 231 detects a packet including unnecessary data and outputs a retransmission signal including header information of the packet to the download provider 131 through the USB port. When the download providing unit 131 receives the retransmission signal of the packet by the download processing unit 231, the download providing unit 131 searches for the packet and retransmits the packet using the header information of the packet.

According to a further aspect of the present invention, the download computer 100 of the software download system of the mobile communication terminal using the USB according to the present invention further includes a timer 300, the USB controller 120 is a download providing unit 131 If there is no response for a predetermined time from or a new packet is not transmitted to the USB buffer 110, an error message is output.

The download computer 100 communicating with the mobile communication terminal 200 via USB is a computer equipped with a general Windows operating system, and has a multi tasking function. Therefore, when a priority event, i.e., an interrupt occurs, at the download computer 100 while performing the download with the mobile communication terminal 200, the CPU 130 of the download computer 100 stops driving the USB and inputs the priority. The event of the rank will be executed.

In this case, the data packet being transmitted or the data packet stored in the USB buffer may be lost without being transmitted to the download buffer 210 of the mobile communication terminal 200. Therefore, the USB controller 120 outputs a timer driving signal after transmitting the packet from the USB buffer 110 to the download buffer 210. The timer 300 receives a predetermined time of 3 seconds from the developer of the mobile terminal 200 and is driven by a timer driving signal, and there is no response (ACK) or data from the download provider 131 for a predetermined time. If there is no transmission of the packet, the USB controller 120 notifies that the time has elapsed. The USB controller 120 receives a signal from the timer 300, outputs an error message, and transmits a retransmission signal including header information of the packet in which the error occurs to the download providing unit 131 of the download computer 100. . The download provider 131 receives a retransmission signal from the USB controller 120, detects header information of a packet included in the retransmission signal, retrieves the packet, and retransmits the packet to the USB buffer 110.

3 is a flowchart schematically illustrating an operation of a software download method of a mobile communication terminal using a USB device according to an embodiment of the present invention. As shown, the download processing unit 231 of the download computer 100 connected to the mobile communication terminal 200 through the USB port divides the software to be mounted on the mobile communication terminal 200 into data packets of a predetermined unit (S110). ). The divided data packet is temporarily stored in, for example, a 64 byte USB buffer 110 provided in the USB port of the mobile communication terminal 200 by the control signal of the USB controller 120 (S120). The USB controller checks whether the storage space of the packet stored in the USB buffer is 64 bytes, and if it is 64 bytes, transmits it to the download buffer 210 of the mobile communication terminal 200 (S130). The process of waiting for transmission of another data packet is repeated until the response of completion is transmitted from the download provider 131 (S140).

The download buffer 210 of the mobile communication terminal 200 generally has a capacity of 1024 bytes. The download processing unit 231 of the mobile communication terminal 200 checks an operation command included in header information of a packet transmitted from the USB buffer 110 and stores the packet in the memory 220 or performs the operation command. .

The download buffer 210 stores the corresponding packet transmitted from the USB buffer 110 and repeats the waiting for storing the next packet transmitted. If the capacity of the download buffer 210 is, for example, 1 kilobyte, the USB buffer 110 and the download buffer 210 store data packets through 16 transmissions.

The download processor 231 checks whether the capacity of the data packet stored in the download buffer 210 matches the capacity of the packet transmitted from the USB buffer 110 (S150). For example, if the available space of the download buffer 210 is insufficient to store the 16th transmitted packet, it may be determined that unnecessary data is included in the process of transmitting the packet.

The download processing unit 231 searches the header information of each transmitted packet, detects a packet having a size larger than the packet size information stored in the header information, and outputs an error message (S151) (S152). In addition, the download processing unit 231 detects a packet including unnecessary data and outputs a retransmission signal including header information of the packet to the download providing unit 131 through the USB port (S153).

When the download providing unit 131 receives the retransmission signal of the packet by the download processing unit 231, the download providing unit 131 searches for and retransmits the packet using header information of the packet.

When the retransmitted packet is normally stored in the download buffer 210 (S154), the download processing unit 231 of the mobile communication terminal 200 stores the packets stored in the download buffer 210 in the memory 220 in the order of being stored. (S160).

4 is a flowchart schematically illustrating an operation of a software download method of a mobile communication terminal using a USB according to another embodiment of the present invention. As shown, the download computer 100 generally has a multi tasking function. Priority event, i.e., interruption, occurs in the download computer 100 while the mobile terminal 200 and the download computer 100 are performing the download (S210), the download computer 100 stops the operation of the USB and inputs the event of the priority input. Will run. The download providing unit 131 drives a timer 300 that counts a predetermined time when the transmission of data to the USB buffer 110 is stopped due to the interrupt generation (S220). If there is no response (ACK) or no data packet transmission from the download provider 131 for a predetermined time determined by the timer 300, an error message is output (S230), (S240), and an error is retransmitted. The signal is transmitted to the download providing unit 131 of the download computer 100 (S250). When the download providing unit 131 receives the retransmission signal of the packet by the download processing unit 231, the download providing unit 131 searches for the packet and retransmits the packet using the header information of the packet.

When the retransmitted packet is normally stored in the download buffer 210 (S260), the download processing unit 231 of the mobile communication terminal 200 stores the packets stored in the download buffer 210 in the memory 220 in the order of being stored. (S270).

As described above, the software download method and system of the mobile communication terminal using the USB according to the present invention transfers the software mounted on the mobile communication terminal using the USB port, and prevents unnecessary data is transferred together, The time required for the development and mass production of the communication terminal has the effect of saving.

In addition, by outputting a retransmission signal of a data packet whose transmission has been interrupted in response to a higher event occurring in the download computer during transmission, the data is prevented from being lost due to interruption of transmission.

The present invention has been described above with reference to preferred embodiments, but is not limited thereto, and is interpreted by the appended claims, which are intended to cover many modifications that will be apparent to those skilled in the art without departing from the scope of the present invention. Should be done.

Claims (7)

delete A method for downloading software stored in the download computer to the mobile communication terminal via wired communication between a download computer and a mobile communication terminal, the method executed on the download computer includes: Dividing data to be transmitted to the mobile communication terminal by a predetermined packet unit and sequentially outputting the divided data packets to a USB buffer; Transmitting a data packet stored in the USB buffer to the mobile communication terminal through a USB communication method; Requesting sequential output of an unprinted data packet if the divided data packet is not output to the USB buffer for a predetermined time; And sequentially outputting unprinted data packets to the USB buffer according to the request. The method executed in the mobile communication terminal is: Temporarily storing data packets sequentially received from the download computer according to USB communication in a download buffer; Detecting the header information of the data packet and requesting retransmission to the download computer when the capacity of the received data packet is larger than that of the data packet transmitted from the USB buffer; Writing data temporarily stored in the download buffer into a memory; Software download method of a mobile communication terminal using the USS, comprising a. The method of claim 2, wherein the header information is: And a user's operation command, an address of a memory in which the data packet is to be stored, and packet information of the data. delete A download system for downloading software stored in the download computer to the mobile communication terminal via wired communication between a download computer and the mobile communication terminal, the download computer comprising: A timer for counting a predetermined time; A USB buffer for temporarily storing packet data; A download providing unit which divides data to be transmitted to the mobile communication terminal into predetermined packet units and sequentially outputs the divided data packets to the USB buffer; Set up a USB communication connection with the mobile communication terminal to transfer and control the data packet stored in the USB buffer to the mobile communication terminal according to the connected USB communication scheme, the download providing unit for a predetermined time counted by the timer If there is no output of the data packet to the USB buffer from the; USB controller for requesting the sequential output of the non-output data packet to the download provider; The mobile communication terminal: Memory; A download buffer for temporarily storing data packets received according to a USB communication method; A control unit including a download processing unit which checks header information of a data packet temporarily stored in the download buffer and stores the data in a corresponding area of the memory; Software download system comprising a. 6. The method of claim 5, wherein the header information is: And a user operation command, an address of a memory in which the data packet is to be stored, and the data packet information. The method of claim 5 or 6, wherein the download processing unit: And if the capacity of the received data packet is larger than the capacity of the data packet output from the USB buffer, requesting retransmission to the download computer by detecting header information of the data packet.

Images