KR20030047426A - Method for upgrade software from remote - Google Patents

Abstract

PURPOSE: A remote software upgrading method is provided to allow a user to promptly upgrade a system by downloading a software from an RPOM(Radio Port Operation amp: Maintenance System) and programming it in a flash ROM. CONSTITUTION: Judging software upgrading, an operating server(210) of an RPOM(110) transfers a corresponding software to an RPC(Radio Port Controller)(120). A main processor(230) of an RP(Radio Port)(130) is controlled so that a main processor(220) of the RPC(120) can send the software as a radio signal. The first processor(241) of an RIU(Radio Interface Unit)(140) downloads the software included in the radio signal, temporarily stores it in a flash ROM(243), and downloads the software through a UTP cable when the RIU detects a request by the operating server(210). The second processor(251) of an indoor interface unit(150) temporarily stores the software in a memory(252), programs it in the flash ROM(253) when the software is successfully downloaded, and performs a re-booting.

Description

How to upgrade remote software {METHOD FOR UPGRADE SOFTWARE FROM REMOTE}

The present invention relates to a wide-wireless local loop (W-WLL) system, and more particularly to a remote software upgrade method.

Wireless Local Loop (WLL) is a subscriber network that connects wirelessly from the telephone company to the subscriber's home.

Wireless subscriber networks can be established relatively economically and easily compared to conventional wired subscription networks that used a pair of copper wires.

In other words, the existing wired subscriber network not only requires enormous costs to modify the network in response to changes in subscriber demand and network evolution, but also has additional constraints such as facility cost and construction period. Not only can it be installed, it can also flexibly respond to subscriber acceptance, which can reduce the investment cost and also can reduce maintenance costs because there is no wired media to manage.

This wireless subscriber network can be used for asynchronous data, ISDN, packet data, etc. as well as voice telephones. Data terminals and data servers connect as wired lines.

A typical wireless subscriber network system is a base station operating apparatus (RPOM: Radio Port Operation & Maintenance System) (RPOM) 110, a base station controller (RPC: Radio Port Controller) 120, a base station (RP) as shown in the configuration of FIG. A radio port (130) is provided at the operator side of the remote site, and an outdoor subscriber interface (RIU) 140, an indoor subscriber access device 150, a computer 160, and a telephone 170 are provided. It is provided on the subscriber side.

The base station operating device 110 operates and maintains a base station controller 120, a base station 130, an outdoor subscriber access device 140, an indoor subscriber access device 150, and a data communication matching device (not shown). Perform the maintenance function.

The base station controller 120 is located between the base station 130 and the switch and the data communication matching device (IWF) to control the voice call between the switch and the base station 130, and data between the data communication matching device (IWF) and the base station 130. Perform call control functions.

In addition, the base station controller 120 is configured by connecting an interworking function system (IWF) (not shown) having a protocol conversion function for a data call of a wireless subscriber network (WLL).

That is, the data communication matching device (not shown) performs a function of connecting a data call on the subscriber side to a PC communication network or the Internet.

The base station 130 performs a radio access, a demodulation function, a radio resource management function, and the like, between the base station controller 120 and the outdoor subscriber access device 140.

The indoor subscriber access device 150 performs a function of connecting a user terminal such as a computer 160, a telephone 170, a fax machine, and an outdoor subscriber access device 140.

The outdoor subscriber access device 140 and the base station 130 serves as a line in the existing PSTN.

In such a wireless subscriber network system, when upgrading the software of the indoor subscriber access device 150, the software programmed in the flash ROM provided in the indoor subscriber access device 150 should be upgraded.

To do this, the flash ROM must be programmed directly using the ROM Writer.

However, in the related art, in order to upgrade the indoor unit software, it is necessary to take out the flash ROM and program it directly into the ROM writer, and then insert it into the board again.

Therefore, in order to solve the conventional problem, the present invention can not only quickly upgrade the system but also inconvenience the subscriber by downloading the software from the base station operating system to the subscriber access device and then programming the software into the flash ROM. The purpose of the present invention is to provide a remote software upgrade method.

1 is a block diagram of a general broadband wireless subscriber network system.

2 is an overall signal flow diagram illustrating a software upgrade in an embodiment of the invention.

3 is a flowchart illustrating a software download process in an outdoor subscriber access device according to an embodiment of the present invention.

4 is a flowchart illustrating a software upgrade process in an indoor subscriber access device according to an embodiment of the present invention.

** Explanation of symbols on the main parts of the drawing **

110: base station operating apparatus 120: base station controller

130: base station 140: outdoor subscriber access device

150: indoor subscriber access device 210: operation server

220,230: main processor unit 241,251: processor

242,252: Memory 243,253: Flash ROM

The present invention is to determine whether to upgrade the software in the base station operating apparatus to achieve the above object, and if the software upgrade is determined in the step of transmitting the software to the base station to download to the outdoor subscriber access device, and the base station operation Downloading the downloaded software by the outdoor subscriber interface to the indoor subscriber interface via a UTP cable by a request from the device, programming the downloaded software in the flash ROM and successfully When the programming is completed, the rebooting step is performed to remotely execute the software upgrade of the indoor subscriber access device.

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

In the embodiments of the present invention, a detailed description of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

The system for an embodiment of the present invention is configured in the same manner as the general wireless subscriber network system of FIG.

2 is a signal flow diagram for software upgrade in the embodiment of the present invention, when the operation server 210 included in the base station operating apparatus 110 determines that the software is upgraded, the base station controller 120 And a main processor unit 230 provided in the base station 130 so that the main processor unit 220 provided in the base station controller 120 transmits the software transmitted from the operation server 210 as a radio signal. ) And the first processor 241 provided in the outdoor subscriber access device 140 downloads the software included in the radio signal transmitted from the base station 130 and temporarily stores the software in the flash ROM 243. Downloading the software stored in the flash ROM 243 through the UTP cable when the request from the operation server 210 is determined; The second processor 251 included in the self-access device 150 temporarily stores the software downloaded through the UTP cable in the memory 252, and when the software download is successfully completed, the software is flash ROM 253. Program and then reboot.

The outdoor subscriber access device 140 is configured to supply power from the indoor subscriber access device 150 through a UTP cable.

The base station 130 is configured to support the CDMA wireless communication scheme of the 2.3 ~ 2.4GHz band for a broadband wireless subscriber network.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

In order to upgrade the software of the indoor subscriber access unit 150 according to the request of the operator, the operation server 210 provided in the base station operating apparatus 110 transmits the corresponding software to the base station controller 120 while the base station controller 120 The software download command is transmitted to the main processor unit 220 provided in FIG.

The main processor unit 220 provided in the base station controller 120 transmits the software transmitted from the operation server 210 to the base station 130 and transmits it as a radio signal to the main processor unit provided in the base station 130 ( 230) order.

The main processor unit 230 provided in the base station 130 inserts the software into a wireless signal of a predetermined format, converts it into a form that can be received by the outdoor subscriber access device 140, and transmits it as a wireless signal.

When the outdoor subscriber access device 140 determines that the first processor 241 receives the radio signal transmitted from the base station 130, the outdoor subscriber access device 140 restores a signal having a predetermined format after filtering and corrects an error with respect to the restored signal. After that, the software is extracted and stored in the flash ROM 243.

Thereafter, the first processor 241 determines whether a request from the operation server 210 to download the software stored in the flash ROM 243 to the indoor subscriber access device 150 is received through the base station 130. .

Thereafter, upon determining the software download request from the operation server 210, the first processor 241 transmits a software upgrade message (download ready command) to the indoor subscriber access device 150.

When the second processor 251 of the indoor subscriber access device 150 receives the software upgrade message, the second processor 251 deletes the contents of the memory 252 and then sends a download ready response (ACK) to the outdoor subscriber access device 140. ) Is transmitted to the first processor 241 provided in FIG.

Thereafter, when the first processor 241 receives the response message ACK from the second processor 251, the first processor 241 downloads the software stored in the flash ROM 243 to the indoor subscriber access device 150 through the UTP cable. Start the action.

Thereafter, the second processor 251 included in the indoor subscriber access device 150 determines whether the software download from the outdoor subscriber access device 140 is completed, and determines whether the software has been successfully downloaded when the software download is completed. .

If it is determined that the software download has failed, the second processor 251 transmits a request to re-execute the software download to the first processor 241 provided in the outdoor subscriber access device 140.

If it is determined that the software has been successfully downloaded, the second processor 251 transmits a message to the second processor 241 that the software download has been successfully completed, and then does not use any of the two sectors of the flash ROM 253. A task of programming software temporarily stored in the memory 252 in a sector is executed.

In this case, after the contents of the corresponding sector of the flash ROM 253 to be programmed are erased, the programming operation is executed by the software stored in the memory 252.

Then, when it is determined that the software programming is successfully executed in the sector of the flash ROM 253, the second processor 251 sets the sector as the active sector and then displays a message indicating that the software programming was successfully completed. ) And reboot.

Accordingly, when the reboot is executed, the second processor 251 determines the activated sector among the sectors of the flash ROM 253 to execute software programmed in the corresponding sector.

Meanwhile, the operation of the outdoor subscriber access device 140 and the indoor subscriber access device 150 will be described with reference to the operation flowcharts of FIGS. 3 and 4, respectively.

First, as illustrated in the operation flowchart of FIG. 3, the software download operation in the outdoor subscriber access device 140 is performed by the first processor 241 when it determines a download request from the operation server 210. The software upgrade message is sent to 150 and it is determined whether a response message ACK is received.

After that, when the response message ACK is received from the indoor subscriber access device 150, the first processor 241 checks whether the transmission error is detected and checks the software stored in the flash ROM 243 through the UTP cable. The content is downloaded to the subscriber access device 150.

Thereafter, when the software download is completed without error, the first processor 241 checks whether a programming result message is received from the indoor subscriber access device 150.

Thereafter, when the programming success message is received from the indoor subscriber access device 150, the software download operation is terminated.

If there is no response when the upgrade message is transmitted, or if a transmission error occurs when downloading the software or when a programming failure message is received, the first processor 241 determines whether to retransmit and if it is possible to retransmit, executes again from the first process and retransmits. If it is determined to be impossible, the download operation is terminated.

In addition, the software upgrade operation in the indoor subscriber access device 150, as shown in the operation flowchart of FIG.

When the upgrade processor receives the upgrade message from the outdoor subscriber access device 140, the second processor 251 deletes the contents of the memory 252 and transmits a response message ACK to the outdoor subscriber access device 140.

Then, when the software is downloaded from the outdoor subscriber access device 140, the second processor 251 temporarily stores in the memory 252 and determines whether the download is complete.

Thereafter, when the software download is completed, the second processor 251 determines whether two sectors of the flash ROM 253 are activated and selects sectors that are not currently activated.

For example, if sector 1 of the flash ROM 253 is activated, sector 2 is selected. If sector 2 is activated, sector 1 is selected.

Thereafter, the second processor 251 erases the contents of the sector of the selected flash ROM 253 and determines the erase state.

If the erasing of the sector contents is completed successfully, the second processor 251 programs the software stored in the memory 252 in the sector and determines whether the programming is successful when the programming is completed.

If it is determined that the software programming is successfully completed in the sector of the flash ROM 253, the second processor 251 activates the sector, transmits the upgrade success message to the outdoor subscriber access device 140, and executes a reboot. .

If the software download to the memory 252 has not been successfully performed or the erase of the selected sector of the flash ROM 253 has not been completed successfully, or if software programming has not been completed successfully on the selected sector, The second processor 251 transmits a failure message to the outdoor subscriber access device 140 to take an appropriate action.

As described in detail above, when the software upgrade is required, the software upgrade can be easily and quickly achieved by downloading the corresponding software to the indoor subscriber access device through the wireless subscriber network and executing software programming. There is an effect that can eliminate the hassle and inconvenience, such as software upgrade.

Claims (3)

A software upgrade method of a broadband wireless subscriber network system, comprising: a first step of determining whether to upgrade a software in a base station operating apparatus; A second step of downloading, a third step of downloading the software downloaded by the outdoor subscriber access device to the indoor subscriber access device through a UTP cable by a request from the base station operating apparatus, and the indoor subscriber access device And remotely executing a software upgrade of the indoor subscriber access device by performing a fourth step of programming the downloaded software into a flash ROM. The method of claim 1, wherein the third step includes: a first process of downloading software to the indoor subscriber access device and waiting for a message reception if the response message is received from the indoor subscriber access device after the software upgrade message is transmitted; If a message indicating that the software download is successfully completed from the indoor subscriber access device is received, the second process of waiting for the reception of the software programming result; Remote software upgrade method characterized in that consisting of a third step of executing. The method of claim 1, wherein the fourth step includes a first step of downloading the software after determining whether the download is successfully completed after transmitting a response message to the outdoor subscriber access device for receiving the software upgrade message, and wherein the software download is successful. In this case, the second process of selecting a sector of the flash ROM to execute software programming and determining whether the programming is completed successfully, and if the software programming is successfully completed, activates the corresponding sector of the flash ROM and then executes a reboot. And a fourth process of transmitting a failure message to the outdoor subscriber access device when it is determined that the software download fails or programming fails.