KR100280028B1 - Code upgrade method on adsl system - Google Patents

Abstract

end. TECHNICAL FIELD OF THE INVENTION The invention described in the claims relates to a code upgrade method in a telephone line high speed data transfer (ADSL) system based on ATM.

I. The technical problem to be solved by the present invention: in the ATM-based high-speed data transmission system (ADSL), a new code can be upgraded on the entire system card by transmitting a new code to one card that can interface with an external network. To provide a way.

All. SUMMARY OF THE INVENTION A method of automatic code upgrade in a data transmission system in which a mother station module and a subscriber station device module are connected at both ends of a telephone line, the method comprising: checking whether transmission of an upgrade code is performed through an external interface network; When the upgrade code transmission is detected, analyzing the transmission destination of the detected upgrade code and transmitting the upgrade code to the self management module in the same shelf when the transmission destination exists in the same shelf, and transmitting the upgrade code. If the destination does not exist in the same shelf, the self-distribution module transmits each of the self-management modules of the self-distributing module to control the upgrade to the upgrade code.

la. Important use of the invention: It can be used in ADSL transmission system.

Description

Code automatic upgrade method in high speed data transmission system {CODE UPGRADE METHOD ON ADSL SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an Asymmetric Digital Subscriber Line (ADSL) system based on Asynchronous Transfer Mode (ATM). In particular, the system is configured by transmitting a code only to one board connected to an external network. How to upgrade new code to multiple / multiple boards.

ADSL system is a transmission device installed at both ends of telephone line (telephone station, subscriber) so that data can be transmitted at high speed by using existing telephone line. It refers to the device for internet, VOD and multimedia service. The general code upgrade method for this ADSL system is to replace the ROM or Flash ROM containing the code directly, or it is an advanced method to transmit the code by card (or board) by serial communication using a flash. The method of upgrading the code in the same memory as the ROM was used. In addition, as a way to upgrade the code from a remote location, by uploading protocol modules such as TCP / IP for each card, new code could be upgraded through applications such as TFTP (Trivial File Transfer Protocol).

However, the method of transmitting code directly to each card of the system using serial communication is difficult to remotely operate, and all modules must be equipped with hardware capable of using serial communication and connected. In addition, in terms of time, serial communication has a disadvantage in that it cannot communicate at high speed compared to other communications.

On the other hand, when using TFTP, a TCP / IP application program, the code size of each card increases and at the same time, there is a problem in that code transmission cannot be received unless hardware for supporting Ethernet is prepared. And having hardware capable of supporting Ethernet on every card is a waste of money.

Accordingly, an object of the present invention is to provide a method of automatically upgrading a code without wasting time and manpower in an ATM-based telephone line high-speed data transmission system (ADSL).

It is still another object of the present invention to transfer a new code to one card that can interface with an external network in an ATM-based telephone line high-speed data transmission system (ADSL) to upgrade a new code to the entire system card. In providing a method.

According to an aspect of the present invention, there is provided an automatic code upgrade method in a data transmission system in which a mother station device module and a subscriber station device module are connected to both ends of a telephone line, the method for checking whether transmission of an upgrade code is performed through an external interface network. And if the upgrade code transmission is detected, analyzing the transmission destination of the detected upgrade code and transmitting the upgrade code to the self management module in the same shelf if the transmission destination exists in the same shelf; If the transmission destination of the code does not exist in the same shelf, the self-distribution module transmits to the self-management module of the self where the corresponding transmission destination exists and controls to upgrade the upgrade code to the upgrade code.do.

1 is a block diagram of a telephone line high-speed data transmission system (ADSL) according to an embodiment of the present invention.

2 is a simplified configuration diagram of an ADSL system for showing a transmission path of a code for upgrading.

3 is a code transmission flow diagram of the network interface module 104 shown in FIG.

4 is a code transmission flow diagram of the self-distribution module 102 shown in FIG.

5 is a code transmission flow diagram of the self management module 106a shown in FIG.

FIG. 6 is a code transmission flow diagram of the mother station apparatus 0 (108a) shown in FIG.

Hereinafter, a code automatic upgrade method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a high-speed data transmission system for a telephone line according to an exemplary embodiment of the present invention. The local station module 120 to 130 is shown. Referring to FIG. 1, a plurality of shelves are installed in one rack, and a self management module 106 is installed in each shelf, as well as subscriber station device modules 120 to 130 and a telephone line 140. Motherland device modules (108, 110) are connected through the installation. In addition, there is a network interface module 104 for interfacing predetermined data with an external network in the rack, and a self-distribution module 102 for receiving data from the network interface module 104 and distributing the data to other shelves is also installed. do. The self management module 106 in the shelf without the network interface module 104 transmits the data transmitted from the self distribution module 102 to other cards in the same shelf through the back plane. The backplane is responsible for data transmission between the self management module 106 and the mother station module 108 and 110 for data transmission between the subscriber station device modules 120 to 130 and the service provider 112. In addition, the backplane also serves as a transmission path to exchange card management information with the self-management module 106. Cell bus may be used as the transmission path. That is, the data transmitted from the subscriber via the cell bus may be transmitted to the self management module 106 through the mother station module 108 and 110. In addition, SPI (Serial Peripheral Interface) may be used as a communication method for managing the same self. This is a method in which the self management module 106 becomes a master and the remaining cards become slaves in the master / slave communication and exchange data. You can also use the UART in multidrop mode. Data transmitted in the ADSL system having the above configuration has the form of an ATM cell. Of course, when transmitted through the telephone line 140, these cells are converted into a specific format between the mother station device modules 108 and 110 and the subscriber station device modules 120 to 130, and then to the ATM cell. And each card may be provided with an optical module for high speed ATM cell transmission.

Hereinafter, a code upgrade method of the above-described ADSL system will be described with reference to FIGS. 2 to 6.

Figure 2 shows a simplified configuration of the ADSL system for showing the transmission path of the code for upgrading, Figure 3 shows a code transmission flow diagram in the network interface module 104 shown in FIG. 4 shows a code transmission flow diagram of the self-distribution module 102 shown in FIG. 2, FIG. 5 shows a code transmission flow diagram of the self management module 106a shown in FIG. 2, and FIG. The code transmission flow diagrams in the mother station module 0 (108a) are shown respectively.

First, when the remote server 116 outside the system transmits a new code in the form of an ATM cell to the network interface module 104 of FIG. 2 using an application program, the network interface module 104 newly transmits the data in step 300 of FIG. Check if there is code. Here, the "new code" means an upgrade code for upgrading a code currently being used in each module of a plurality of shelves constituting a high speed data transmission system. The upgrade code may be a code for changing a code of a part of a program currently being used in each module, or code for changing specific data stored in other data. The upgrade codes are generated by an operator through the application program, and the generated upgrade codes are converted into ATM cells and transmitted to the network interface module 104 through the remote server 116. Since the upgrade codes of the ATM cell type have a transmission format supported by an ATM system, the header portion specifies the transmission destination of the ATM cell and the characteristics of the data to be transmitted, and thus the network interface 104 transmits the data. By receiving an ATM cell from a remote server and analyzing its header, it is possible to determine whether the data being transmitted by that cell is an upgrade code.

If there is a newly transmitted code as a result of the check, the network interface module 104 determines whether the destination of the transmitted code is a card existing in the same card (S310). In this case, the ADSL transmission system performs the data transmission through the ATM method. Therefore, when the operator generates an upgrade code using an application program, the ADSL transmission system converts the remote server 116 into an ATM cell to the network interface module 104. And then the network interface module 104 checks the ATM cell. Thus, the header of the ATM cell is analyzed to determine whether the destination representing the destination of transmission indicates whether the network interface module 104 is present or not, and the destination is the network interface module 104. In case of indicating the self, the network interface module 104 transmits the ATM cell to the self management module 106 in the same self. On the other hand, when the destination of the ATM cell is not the same as the shelf in which the network interface module 104 exists and indicates a different shelf, the ATM cell is transmitted to the self-distribution module 102.

If the destination of the transmitted code is a specific card on the shelf in which the network interface module 104 exists, the network interface module 104 proceeds to step 320 to transfer the code to the self management module 106 existing in the same shelf. send. On the other hand, if the destination of the transmitted code exists in the other self, the network interface module 104 proceeds to step 330 and transmits the code to the self-distribution module 102.

Hereinafter, the operation of the self-distribution module 102 will be described with reference to FIG. 4. The self-distribution module 102 checks whether a code is newly transmitted through the network interface module 104 in step 400. If there is a newly transmitted code, the self-distribution module 102 checks whether the newly received code is its own code (410). If it is not its own code, it proceeds to step 420 and transmits the code received to the corresponding self management module 106a or 106b. If the code transmitted from the network interface module 104 is determined to be its own code in step 410, the self-distribution module 102 proceeds to step 430 to upgrade the code, and then operates according to the upgraded code.

Hereinafter, the operation of the self-management module 106a will be described with reference to FIG. 5. If there is a new code transmitted through the self-distribution module 102 in step 500, the self-management module 106a proceeds to step 510. Check that the code is your code. If the self test module 106a transmits the transmitted code to the corresponding mother device module through the backplane, if it is its own code, the self-management module 106a transmits the transmitted code to the home station module according to the upgraded code. It works.

Finally, referring to FIG. 6, if there is a code newly transmitted from the self management module 106a in step 600, the mother station module 108a checks whether the transmitted code is its own code. In step 620 or 630 according to the test result, the transmitted code is transmitted to the corresponding subscriber station apparatus module or its code is upgraded to the newly transmitted code.

Therefore, the present invention can transmit the code transmitted from the external remote server 116 to the corresponding module, and if the code is transmitted from the corresponding module, the new code is automatically upgraded.

As described above, the present invention has the advantage that the code to be upgraded can be transferred to a specific module in the system without the additional hardware device, and as a result, the size of the code is relatively small since no software module is required to interface with the outside. It has the effect of decreasing.

Claims (3)

A method for automatically upgrading codes in a data transmission system in which a mother station module and a subscriber station module are connected to both ends of a telephone line, Checking whether there is transmission of upgrade code through external interface network, When the upgrade code transmission is detected, analyzing the transmission destination of the detected upgrade code and transmitting the upgrade code to the self management module in the same shelf when the transmission destination exists in the same shelf; If the upgrade destination of the upgrade code does not exist in the same shelf, the self-distribution module transmits to the self-management module of the self where the corresponding transfer destination exists and controls to upgrade the upgrade code to the upgrade code. How to feature. The method of claim 1, wherein the self-management module downloads the upgrade code to a mother station module of a corresponding transmission destination through a backplane which is a data transmission path. The method of claim 1, wherein the self-management module downloads the upgrade code to a mother device module through a serial line that is responsible for inter-board communication of a backplane as a data transmission path.