KR102380263B1 - Apparatus and method for remote program downloading - Google Patents

Abstract

The remote program update method of the optical transceiver using the optical branch coupler 600 according to an embodiment of the present invention includes the steps of inputting new program data into the EMS of a remote program downloading device, the optical transceiver in the EMS of the remote program downloading device transmitting a program upgrade signal to the , reporting the program download completion preparation in the optical transceiver receiving the program upgrade signal, downloading the upgrade program, and restarting the optical transceiver after downloading the upgrade program may be included.

Description

Device and method for remote program downloading using an optical splitter coupler {Apparatus and method for remote program downloading}

The present invention relates to a remote program downloading apparatus and method using an optical splitter coupler.

An optical transceiver is an essential component of an optical communication network. Specifically, the optical transceiver is a compound word of a transmitter meaning an optical transmitter and a receiver meaning a receiver. It serves to convert into electrical signals and exchanges data.

Demand for such an optical transceiver is increasing due to the development of communication technology and rapid increase in data traffic.

On the other hand, since the optical transceiver is not equipped with a remote program download function, program update takes a lot of time and money.

Also, in the prior art, when a program upgrade is required, the optical transceiver in operation must be removed and mounted on a separate download device, and then the communication service is interrupted.

Accordingly, the present invention proposes an apparatus and method for upgrading a program of an optical transceiver without interruption of a communication service in operation using the optical splitter coupler 600 .

The present invention provides a method of upgrading a program of an optical transceiver without interruption of a communication service in operation using an optical splitter coupler.

The remote program downloading method using the optical branch coupler 600 according to an embodiment of the present invention includes the steps of inputting new program data into the EMS of the remote program downloading device, and programming from the EMS of the remote program downloading device to the optical transceiver. Transmitting an upgrade signal, reporting the program download completion preparation in the optical transceiver receiving the program upgrade signal, downloading the upgrade program, and after downloading the upgrade program, restarting the optical transceiver can be configured.

The remote program downloading apparatus according to an embodiment of the present invention is an optical transceiver management apparatus, and is an apparatus for updating the operating program of at least one optical transceiver among optical transceivers connected by an optical transmission line for carrier communication and subcarrier communication, A subcarrier transmission path is formed with the optical transceivers through an optical branch coupler coupled to the optical transmission line, and a program to be updated is transmitted to at least one of the optical transceivers through the optical branch coupler.

In addition, the remote program downloading apparatus of the present invention comprises a subcarrier transmitter, wherein the subcarrier transmitter modulates the program to be updated to a subcarrier and transmits it to at least one of the optical transceivers on the optical transmission line via an optical splitter coupler. do.

According to an embodiment of the present invention, there is provided a method for updating an operating program of at least one optical transceiver among optical transceivers that are connected through an optical transmission path and communicate with each other, the method comprising: inputting program data to be updated to a remote program downloading device; and transmitting, by the remote program downloading device, the program to be updated to the optical transceiver through an optical splitter coupled to the optical transmission path. The method may further include, by the remote program downloading device, transmitting a program update signal to the optical transceiver; Transmitting, by the optical transceiver receiving the program update signal, a program download preparation completion signal to the remote program downloading device; further comprising, transmitting the program to be updated to the optical transceiver, the remote program download The loading device may proceed after receiving the program download preparation completion signal from the optical transceiver.

In addition, the transmission of the program to be updated from the remote program downloading device to the optical transceiver may be transmitted using a subcarrier instead of a carrier used for data communication between optical transceivers, and is used for additional information communication between optical transceivers A remote program update method of an optical transceiver, characterized in that the second subcarrier is used in a guard time interval between signals of the first subcarrier.

According to the present invention, the optical transceiver that has received the update program that transmits the program to be updated from the remote program downloading device to the optical transmission line connected to the optical transceiver through the optical junction coupler, the program loaded with the currently loaded program The update program is stored in a program bank other than the bank, and when the optical transceiver is reset, the stored update program is loaded into the memory.

The present invention can upgrade the program of the optical transceiver without interruption of the communication service in operation.

In addition, the present invention can remotely upgrade the program of the optical transceiver without a person directly detaching the optical transceiver.

In addition, the present invention can rapidly program upgrade a plurality of optical transceivers connected to the network.

1 is a diagram showing a communication network including an optical transceiver management apparatus using an optical branch coupler according to an embodiment of the present invention.
2 is a diagram illustrating a time for transmitting a subcarrier in an optical transceiver management apparatus.
3 is a diagram illustrating a process of preparing a program memory area in an optical transceiver.
4 is a diagram illustrating a step of downloading an upgrade program.
5 is a diagram illustrating remote program download over multiple lines according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

Throughout the specification, when a part is said to be “connected” to another part, it includes not only the case where it is “directly connected” but also the case where it is “electrically connected” with another element in between. . Also, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated. As used throughout this specification, the term “step for (to)” or “step for” does not mean “step for”.

The terms used in the present invention have been selected as currently widely used general terms as possible while considering the functions in the present invention, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

1. Optical transceiver management apparatus 400 and optical transceiver management method according to an embodiment of the present invention

1 is a diagram illustrating a communication network including an optical transceiver management apparatus 400 using an optical branch coupler 600 according to an embodiment of the present invention.

Hereinafter, an optical transceiver management apparatus 400 and a program downloading method using optical transceiver management according to an embodiment of the present invention will be described with reference to FIG. 1 .

The optical transceivers 200 and 300 of the present invention are interconnected by an optical transmission line 500, transmit and receive carrier-modulated data, and transmit a series of control data and optical transceiver-related information to a subcarrier using a frequency different from that of the carrier. send and receive using

The optical transceiver-related information includes inventory information, DDM information, and status information. The inventory information includes a transceiver vendor, part number, and serial number transceiver type, and the DDM information includes various performance values within the transceiver, and the state The information may include information such as an alert generated within the transceiver.

The optical transceiver management apparatus 400 of the present invention may branch and receive the subcarriers transmitted and received by the optical transceivers, including the subcarrier transmitter/receiver, to the optical splitter coupler 600, and includes a series of control commands and data The subcarrier may be transmitted to the optical transceivers 200 and 300 by transmitting the subcarrier to the optical transmission line 500 through the optical splitter 600 .

The communication network including the optical transceiver management apparatus 400 using the optical branch coupler 600 according to an embodiment of the present invention includes the first optical transceiver 200 , the first host 100 , the second optical transceiver 300 , the second optical transceiver Two hosts 700 , an optical branch coupler 600 , and an optical transceiver management device 400 may be included.

Fig. 1 (a) is a case in which the optical transmission line has separate up/down lines, and Fig. 1 (b) is a case in which the transmission line is formed as a single line. 1(c) is an enlarged view of the COT side host and the optical transceiver 200 on the left side of A-A' in FIG. 1(a), and FIG. It is an enlarged view of the RT-side host and the optical transceiver 300 . The COT side and the RT side of FIG. 1(b) are also the same as in FIGS. 1(c) and 1(d).

The first optical transceiver 200 may be a COT-side optical transceiver, and the second optical transceiver 300 may be an RT-side optical transceiver.

Meanwhile, the first and second optical transceivers may be the same optical transceiver. Specifically, each of the first and second optical transceivers may be configured to include a host interface, a CPU (TRx) subcarrier transmitter, a subcarrier receiver, an optical transmitter, an optical receiver, and an amplifier.

Meanwhile, the optical transceiver management apparatus 400 may include a subcarrier transmitter/receiver, a CPU, and an EMS, and the subcarrier transmitter/receiver may include an optical transmitter, an optical receiver, a subcarrier transmitter, and a subcarrier receiver. can Figure 1 (e) is a detailed view of the optical transceiver management apparatus 400 showing this.

The optical transceiver management apparatus 400 transmits a subcarrier signal to the first optical transceiver 200 , and a COT subcarrier transmitter/receiver for receiving the subcarrier transmitted from the second optical transceiver 300 to the first optical transceiver 200 . 410, an RT subcarrier transmitter/receiver 420 for transmitting a subcarrier signal to the second optical transceiver 300 and receiving a subcarrier transmitted from the first optical transceiver 200 to the second optical transceiver 300, a control unit It may be configured to include a 430, the control unit may be configured to include a CPU and an EMS (Equipment Management System). The optical transceiver management apparatus 400 of the present invention may be connected to another network through the EMS to transmit and receive control signals, and may be controlled through an external network through the EMS.

Specifically, the subcarrier receiver receives the subcarrier signal transmitted between the first and second optical transceivers through an optical receiver, and the subcarrier transmitter controls the optical transceivers 200 and 300 in the optical transceiver management device 400 A signal may be transmitted to the first and second transceivers through the optical transmitter.

2. Remote optical transceiver program management method using an optical splitter coupler according to an embodiment of the present invention

The remote optical transceiver program management method using the optical branch coupler 600 according to an embodiment of the present invention, by using the optical transceiver management apparatus 400 according to the present invention, the optical transceiver 200 on the optical transmission line 500, 300) is a method of transmitting and loading an optical transceiver program that operates an optical transceiver.

Hereinafter, in the present invention, the optical transceiver management device 400 is used as a remote program downloading device. Hereinafter, the remote program downloading device 400 refers to an optical transceiver optical device 400 .

The optical transceiver program update method according to the present invention includes the steps of inputting new program data to the EMS of the remote program downloading device 400, and the program upgrade signal from the EMS of the remote program downloading device to the optical transceivers 200 and 300. Transmitting, reporting the program download preparation completion from the optical transceivers 200 and 300 receiving the program upgrade signal to the remote program downloading device 400, downloading the upgrade program, downloading the upgrade program After that, the optical transceivers 200 and 300 may be configured including the step of restarting.

Specifically, in the step of transmitting the program upgrade signal from the EMS of the remote program downloading device to the optical transceiver, the subcarrier containing the new program is transmitted to the optical transceiver management device 400 (remote program downloading device) -> subcarrier transmission unit 410 -> optical branch coupler 600 - optical transmission line 500 -> subcarrier receiving unit of optical transceivers 200 and 300 -> optical transceivers 200, 300 may be transmitted in the order of the CPU.

At this time, the new program may be transmitted to each or both of the first optical transceiver 200 and the second optical transceiver 300. It may be transmitted to any optical transceiver requiring program update.

In this case, in order to transmit a program upgrade signal without interfering with communication between the COT optical transceiver and the RT optical transceiver, the Guard Time on the time axis may be used as shown in FIG. 2 . Transmission of subcarriers between the COT and RT may be performed with a predetermined guard time in order to prevent noise, and the control signal or control command from the optical transceiver management device 400 to the optical transceivers 200 and 300 is By being transmitted/received during this guard time period, the information transmission/reception of the subcarrier is not disturbed.

Meanwhile, after receiving the program upgrade signal, the optical transceiver may prepare the program memory area as shown in FIG. 3 .

The optical transceiver management device 400 may transmit a program upgrade or update signal to the optical transceiver, which enables transmission of an update signal from an external network through the EMS 430, and upgrades / upgrades from an external network through the EMS 430 The update program is also received and transmitted to the optical transceivers 200 and 300 .

The update/upgrade procedure of the optical transceiver program may be performed through the procedure shown in FIG. 4 . The program data and control data between the optical transceiver management apparatus 400 and the optical transceivers 200 and 300 in FIG. 4 is the optical transceiver management apparatus 400 and the optical splitter 600 through the optical transmission path 500 It is transmitted by establishing a subcarrier transmission/reception path between the transceivers 200 and 300 .

First, the optical transceiver management apparatus 400 transmits a program upgrade command to the optical transceivers 200 and 300 .

The optical transceivers 200 and 300 that have received the program upgrade signal designate a program bank from which a new program is to be downloaded as described below, and report the program download completion preparation. As shown in FIG. 4, the optical transceiver management apparatus 400 receiving the report of the program download completion preparation checks whether an error occurs during each data packet transmission and performs procedures such as data retransmission according to the optical junction coupler 600 ), and transmits the program data packet using the subcarrier through the optical transmission line 500 . Without being limited thereto, the program may be downloaded by performing various previously known download procedures.

The optical transceiver management apparatus 400 downloads the program to be updated via a network (EMS) and transmits the optical transceiver program to the CPU of the optical transceiver to be updated. As described above, the transmission of the program is converted into sub-carriers in the sub-carrier transceivers 410 and 420 of the optical transceiver management apparatus 400, and then the optical transceivers 200 and 300 to update through the optical splitter 600. CPU of send to

As shown in FIG. 3, the control unit including the CPU of the optical transceiver may include a ROM, a RAM, a boot loader, and a bank selector. optionally stored in

Among the program banks 1 and 2, a new program may be stored as a bank in which an old program is loaded. When the previously operated program is stored in the program bank 1, the newly received program may be stored in the program bank 2.

In this case, the optical transceiver may receive a new program in packet units and store it in the program bank, and may transmit the final packet acknowledgment signal of the program data to the optical transceiver management apparatus. Upon receiving this, the optical transceiver management apparatus may transmit a program restart command to the optical transceiver, and the optical transceiver may receive the program restart command, ie, reset the program.

When the CPU of the optical transceivers 200 and 300 is reset for program update, when rebooting, the bank selector selects program bank 2 and the boot loader loads a new program stored in program bank 2, thereby updating the operating program with a new program. .

When the program is updated or upgraded again, the optical transceiver management device 400 functioning as a remote program downloading device transmits the downloaded program to the optical transceiver through the optical splitter 600, and the optical transceivers 200 and 300 ) stores a new program in program bank 1, and upon reset, the bank selector selects program bank 1 and updates it with a new program. In this way, program banks 1 and 2 can be used alternately to update/upgrade programs.

Meanwhile, in another embodiment of the present invention, as shown in FIG. 5 , a remote program download function can be performed on multiple lines by using a remote program downloading device capable of managing multiple networks. The optical transceiver management apparatus 400 may further include an optical switch 440 having N terminals, and N (N=1, 2, 3, ... n) terminals of the optical switch have different optical transmission paths, respectively. By being connected to the optical junction coupler provided in the optical transceiver, the optical transceiver management apparatus of the present invention can manage and control optical transceivers on N optical transmission paths.

On the other hand, although the technical idea of the present invention has been described in detail according to the above embodiment, it should be noted that the above embodiment is for description and not for limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical spirit of the present invention.

100: first host
200, 300: optical transceiver
400: optical transceiver management device
500: optical transmission line
600: optical splitter coupler

Claims (8)

A method of updating an operation program of at least one optical transceiver among optical transceivers that are connected through an optical transmission path for inter-carrier communication and subcarrier communication using an optical transceiver management device connected to the optical transmission path through an optical splitter coupler,
inputting program data to be updated into the optical transceiver management device;
a subcarrier communication path forming step of forming a subcarrier communication path between the optical transceiver management apparatus and the optical transceiver through the optical junction coupler;
transmitting, by the optical transceiver management device, the program to be updated to the optical transceiver through an optical splitter coupled to the optical transmission path;
It consists of
Transmission of the program to be updated from the optical transceiver management device to the optical transceiver,
using a subcarrier other than the carrier used for data communication between optical transceivers;
A remote program update method of the optical transceiver, characterized in that. The method according to claim 1,
transmitting, by the optical transceiver management apparatus, a program update signal to the optical transceiver through the subcarrier communication path;
transmitting, by the optical transceiver receiving the program update signal, a program download preparation completion signal to the optical transceiver management device through the subcarrier communication path;
It further includes
The transmitting of the program to be updated to the optical transceiver is performed after the optical transceiver management apparatus receives a program download preparation completion signal from the optical transceiver. delete The method according to claim 1,
The transmission of the program to be updated uses a subcarrier in a guard time interval between signals of a subcarrier used for additional information communication between optical transceivers. 3. The method according to claim 2,
The optical transceiver that has received the update program that transmits the program to be updated from the optical transceiver management device to the optical transmission line connected to the optical transceiver through the optical junction coupler,
The update program is saved in a program bank other than the program bank loaded with the currently loaded program.
loading the stored update program into a memory;
A remote program update method of the optical transceiver, characterized in that. An optical transceiver management device for updating at least one optical transceiver operating program among optical transceivers connected by an optical transmission line for carrier communication and sub-carrier communication,
forming a subcarrier transmission path for subcarrier communication with the optical transceivers through an optical branch coupler coupled to the optical transmission line;
and a subcarrier transmitter that subcarrier modulates a program to be updated and transmits it to at least one of the optical transceivers.
transmitting a program to be updated to at least one of the optical transceivers as a subcarrier through the optical splitter coupler;
Optical transceiver management device, characterized in that. delete 7. The method of claim 6,
Optical transceiver management device,
An optical switch having N terminals is additionally provided,
N (N = 1, 2, 3, ... n) terminals of the optical switch are connected to optical junctions provided in different optical transmission paths, respectively, so that the remote program downloading device is connected to the optical transceivers connected on the N optical transmission paths. to allow programs to be updated;
Optical transceiver management device, characterized in that.

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