KR20000042697A - Method of transmitting information for monitoring and controlling terminating units of repeater having different kinds of protocols - Google Patents

Abstract

PURPOSE: A method of transmitting information for monitoring/controlling terminating units of a repeater having different kinds of protocols is provided, so that two kinds of units can remotely monitor fiber loop carriers (FLC) even though protocols of the two units are different, when synchronous digital microwave transmission devices relay the FLC transmitting data rate signals and communicate with the FLC. CONSTITUTION: A monitoring computer is connected to a fiber loop carrier (FLC) of a first station. A repeater having different protocols receives status information of a FLC in a second station via a wireless transmission device of the second station and a wireless transmission device of the first station, to monitor/control an FLC capacity of the second station having a different protocol. A method of transmitting information for monitoring/controlling terminating units in the repeater, comprises the steps of: if the wireless transmission device of the first station transmits a request command for the status information to the wireless transmission device of the second station, attaching an overheader to the request command, and inserting the command into a digital control channel (DCC) frame to transmit the command; if the wireless transmission device of the second station transmits the status information to the wireless transmission device of the first station, attaching an overheader to the information, and inserting the information into the DCC frame to transmit the information.

Description

Apparatus and method for transmitting monitoring control information between end devices of heterogeneous protocol relay devices

The present invention relates to an apparatus and method for transmitting monitoring control information between end devices of a heterogeneous protocol relay, and more particularly, to a synchronous digital microwave transmitter (hereinafter referred to as SMR). When they relay and communicate optical transmission devices (FLCs) that transmit the same data level signals, the two types of devices allow remote monitoring between optical transmission devices even if the protocols are different. The present invention relates to an apparatus and a method for transmitting supervisory control information between end devices of a protocol relay device.

A city telephone network is formed in each city, and a long distance telephone network is formed in each intercity. In the intercity telephone network, transmission devices for transmitting data in a STM-1 (Synchronous Transfer Mode-1) class are provided in each intercity. Collects and transmits long distance data required by cities.

The STM-1 class is a transmission amount representing a capacity of 155 Mbps, and is a standard for main data transmission lines between telephone stations.

However, in order to efficiently use the STM-1 class transmitters as described above, it is necessary to monitor and control whether or not data transmission is performed well. In order to satisfy such a need, overhead data is transmitted to the transmitted data. And transmit the data, and extract the overheader data from each transmission apparatus and use the same to monitor the transmission performance of each transmission apparatus.

Hereinafter, with reference to the accompanying drawings, it will be described a monitoring control data transfer method between the terminal device of the conventional relay device.

As shown in Fig. 1, in the termination device of the relay device for transmitting the monitoring control data, the monitoring device is equipped with a monitoring control computer.

That is, the first station transmitter 10 transmits STM-1 data using the first FLC 11 and the first SMR 12, and the second station transmitter 20 transmits the second FLC 21 and the first station. 2SMR 22 is used to transmit STM-1 grade data.

The first FLC 11 and the second FLC 21 use the first control unit 11A and the second control unit 21A and the second control unit 21A as the respective supervisory control units, and the first and second control units 1B 11B and 2DCU 21B as their respective telecommunication devices. It is included.

In addition, the first SMR 12 and the second SMR 22 are the first and second monitoring devices, respectively, the first SVLOG1 12A, the second SVLOG1 22A, and the respective remote communication devices, the first SVLOG2 12B and the second SVLOG2 22B. ) Is included.

In addition, the first SMR 12 and the second SMR 22 directly exchange data with the first station transmitter 10 and the second transmitter 20, in particular, the first SVLOG2 12B and the second SVLOG2 ( 22B) communicates directly, which is done over the air.

Therefore, the general data transmission path is in the form of the first FLC 11 → the first SMR 12 → the second SMR 22 → the second FLC 21.

And, in order to monitor the performance of the transmission device is used to install the monitoring computer 30, the monitoring according to the protocol for the monitoring channel of each transmission device.

Therefore, in such a case, the apparatus which the monitoring computer 30 can monitor is limited to the mounted transmission apparatus, and the performance of another transmission apparatus and the transmission apparatus of another station cannot be monitored.

That is, the protocol of the monitoring program of the first FLC 11 is different from that of the monitoring program of the first SMR 12, so that the monitoring computer 30 connected to the first FLC 11 is connected to the monitoring program of the first SMR 12. You cannot monitor performance.

In order to monitor the performance of the first SMR 12, a monitoring computer should be mounted on the first SMR 12, and in this case, only the performance of the first SMR 12 can be monitored. The performance of the first FLC 11 cannot be monitored.

Therefore, it is impossible to monitor the performance of the first FLC 11 of the first station in the first station, and it is necessary to adapt the protocols of each other to enable it, which takes a lot of time and effort. In addition, it is also difficult to monitor the transmission performance of other stations in the home country because it can perform such a task only when the respective protocols are known.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and when connecting different devices in the relay section, even if the protocol of the monitoring program is different, without end-to-end operation without matching the protocols, It is to enable monitoring control of the same device.

1 is a block diagram to which a method for transferring monitoring control data between terminals of a relay apparatus according to the prior art is applied;

2 is a block diagram to which the apparatus for transmitting supervisory control information between end devices of a heterogeneous protocol relay device according to an embodiment of the present invention is applied.

3 is a flowchart illustrating a method for transmitting monitoring control information between end devices of a heterogeneous protocol relay device according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

51: first FLC (optical transmission device of first station), 52: first SMR (radio transmission device of first station)

61: second FLC (optical transmission device of second station), 62: second SMR (radio transmission device of second station)

The configuration of the present invention for achieving the above object is made as follows.

In order to perform performance monitoring and control for the optical transmission device of the second station having a different protocol in the monitoring computer connected to the optical transmission device of the first station, the wireless transmission device of the first station and the wireless transmission device of the second station are used. In the method for transmitting supervisory control information between end devices of a heterogeneous protocol relay device receiving status information of a second station optical transmission device,

In the case where the radio transmission device of the first station transmits a status information request command of the optical transmission device of the second station to the radio transmission device of the second station having a different protocol, an overhead is added to the command and inserted into the DCC frame for transmission. Doing;

In the case where the radio transmission device of the second station transmits the status information of the optical transmission device of the second station according to the request in the step from the radio transmission device of the first station having a different protocol, the overhead is added to the corresponding information. And inserting the frame into the frame and transmitting the inserted frame.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in Fig. 2, a configuration of an apparatus for realizing a method for transferring monitoring control information between end devices of a heterogeneous protocol relay device according to an embodiment of the present invention is as follows.

A monitoring computer 70 connected to the FLC for transmitting a status information request command for monitoring the transmission performance of each transmission apparatus, and analyzing the status information of the transmission apparatus that is transmitted and received to diagnose the transmission performance;

Receives the status information command for the second station transmission device requested from the monitoring computer 70, inserts into the DCC channel of the STM-1 signal, and transmits the optical signal, and extracts the status information from the received STM-1 signal. A first FLC 51 performing an optical transmission function of a first station provided to the monitoring computer 70;

The STM-1 signal is wirelessly transmitted to the second station by being inserted into the DCC channel of the STM-1 signal by adding a tag and an error detection signal to the status information command signal transmitted from the first FLC 51, and wirelessly transmitted from another station. A first SMR 52 for performing a radio transmission function of a first station to remove the tag and the error detection signal from the DCC channel of the first transmission to the first FLC 51;

Extracts and transmits the status information command signal from the DCC channel of the STM-1 signal transmitted from the first SMR 52, and adds a tag and an error detection signal to the DCC channel of the STM-1 signal. A second SMR 62 performing a radio transmission function of a second station wirelessly transmitting to the first SMR 52 of the first station;

A second FLC performing an optical transmission function of a second station that transmits the state information of its own station to the DCC channel of the STM-1 signal according to the state information command signal optically transmitted from the second SMR 62 and transmits optically to the second SMR 62; It consists of 61.

The first FLC 51 may include a first MCU 51A that performs a supervisory control function inside the FLC, a first DCU 51B that performs a remote communication function with a transmitter external to the FLC, and an optical communication interface. It consists of 1OTRU 51C.

The first SMR 52 includes a first OPT_INTFC 52A, which is an interface for performing optical communication in response to the first OTRU 51C of the first FLC 51, a first SVLOG2 52D, which is an SMR remote communication device, The first SVLOG1 52C, which is an SMR supervisory control device, and the first SOH_INTFC 52B, which is an interface for extracting an overhead signal such as a DCC from STM-1 class data.

The second FLC 61 may include a second MCU 61A which performs a supervisory control function inside the FLC, a second DCU 61B which performs a remote communication function with a transmission device outside the FLC, and an optical communication interface. It consists of 2OTRUs 61C.

The second SMR 62 includes a second OPT_INTFC 62A, which is an interface for performing optical communication in response to the second OTRU 61C of the second FLC 61, a second SVLOG2 62D, which is an SMR telecommunication device, Second SVLOG1 62C, which is an SMR monitoring and control device, and second SOH_INTFC 62B, which is an interface for extracting an overhead signal such as DCC from STM-1 class data.

Operation of the embodiment of the present invention made as described above is as follows.

First, as described above, in the state in which the first station and the second station are wirelessly connected, the monitoring computer 70 is connected to the first FLC 51 of the first station so that the second FLC 61 of the second station is connected. The operation in the case of monitoring the transmission performance of the system will be described in general.

When the monitoring computer 70 issues a command requesting status information data to the first FLC 51 for monitoring the second FLC 61 of the second station, the first FLC 51 receives STM-1 data. The command is inserted into the DCC frame, and the optical signal is transmitted to the first SMR 52 (S11).

The first SMR 52 adds a tag and an error detection signal to the DCC frame of the command and wirelessly transmits it to the second SMR 62 of the second station (S12).

Then, the second SMR 62 of the second station removes the tag and the error detection signal from the received data, detects only the DCC frame for the command, and optically transmits it to the second FLC 61 of the own station (S13).

The second FLC 61 of the second station analyzes the command received from the second SMR 62 and recognizes the command as requesting the status information of the own station, and inserts the corresponding data into the DCC frame of the STM-1 class data. Optical transmission is performed to the second SMR 62 (S14).

Then, the second SMR 62 inserts a tag and an error detection signal into the state information data received from the second FLC 61 and wirelessly transmits the tag to the first SMR 52 of the first station (S15).

The first SMR 52 of the first station removes the tag and the error detection signal from the data wirelessly transmitted from the second SMR 62 of the second station and optically transmits the tag to the first FLC 51 (S16).

The first FLC 51 receives the optically transmitted signal from the first SMR 52, extracts only the status information data of the second FLC 61 of the second station, and monitors the transmission state and performance of the corresponding transmission apparatus. (S18).

Hereinafter, the operation outlined above will be described in more detail.

When the monitoring computer 70 issues a command for requesting status information data for the second FLC 61 of the second station to the first FLC 51, the first MCU 51A of the first FLC 51 is provided. Receives the signal, recognizes the status information request command for the second FLC 61 of the second station, and transmits the command to the first DCU 51B, which is a telecommunication device.

Then, the first DCU 51B receives the command, inserts the command into the DCC channel of the STM-1 signal, and optically transmits the first DMR 51C to the first SMR 52 through the first OTRU 51C.

The first SMR 52 receives the STM-1 signal optically transmitted from the first FLC 51 through the first OPT_INTFC, transfers it to the first SOH_INTFC 52B, and the first SOH_INTFC 52B detects the DCC frame from the signal. To the first SVLOG2 52D.

The first SVLOG2 52D determines whether the data is transmitted from the first FLC 51 or the data input from the internal first SVLOG 52C, and the data transmitted from the first FLC 51. If the tag is to be transmitted to the outside, insert the tag in the received DCC frame.

Then, the error detection signal CRC is inserted again, and the completed signal (tag + DCC frame + CRC) is loaded on the DCC channel of the STM-1 data and wirelessly transmitted to the second SMR 62 of the second station.

The second SMR 62 of the second station receives STM-1 data wirelessly transmitted from the first SMR 52 of the first station, extracts information of the DCC channel from the second SOH_INTFC 62B, and performs a second SVLOG2 62D. To pass.

The second SVLOG2 62D analyzes the error detection signal from the DCC channel information received above to determine whether there is an error during data transmission, and analyzes the tag to determine that the data is to be sent to the second FLC 61. Only the original DCC frame is extracted and transferred to the second SOH_INTFC 62B.

The second SOH_INTFC 62B inserts the data received from the second SVLOG2 62D into the DCC channel of the STM-1 data and transmits the data to the second FLC 61 through the second OPT_INTFC 62A, which is an optical transmission interface.

The second FLC 61 of the second station receives the STM-1 data transmitted from the second SMR 62 through the second OTRU 61C, which is an optical transmission interface, extracts the DCC frame, and delivers the DCC frame to the second DCU 61B. The 2DCU 61B analyzes the content, recognizes that the data is about the own station, and transfers the data to the 2MCU 62A.

The second MCU 62A analyzes the data received from the second DCU 61B, recognizes the status information of the local station, and transfers the collected local state information to the second DCU 61B.

Then, the second DCU 61B inserts the data received from the second MCU 62A into the DCC channel of the STM-1 data and transmits the data to the second SMR 62 through the second OTRU 61C.

Hereinafter, the data transfer from the second SMR 62 to the first SMR 52 and the data transfer from the first SMR 52 to the first FLC 51 are the same as the method for transferring the status information request command, and only the transfer path is reversed. It proceeds, and will be omitted in order to avoid duplication of description.

The first FLC 51 receives the state information of the second FLC 61 received by the omitted path and transfers the first FLCU 51B to the first MCU 51A from the first MCU 51B. By transferring the information back to the monitoring computer 70, the operation for the status information request of the second SMR 62 of the second station, which was first dropped from the monitoring computer 70, is completed.

Through the above-described method, the status information of the second FLC 61 of the second station can be obtained by using the monitoring computer installed in the first FLC 51 of the first station. Therefore, the tag and the error detection signal are controlled. As the status information of the transmission apparatuses of other stations is obtained, the protocol can perform a performance monitoring function between transmission apparatuses having different protocols.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, conversions, and modifications are possible within the scope without departing from the technical spirit of the present invention. It will be apparent to those who have knowledge.

Therefore, the present invention operating as described above can monitor and control end-to-end devices of the same type even when the protocols of the monitoring programs are different when the other devices of the relay section are connected, without any additional work for matching the protocols. In monitoring the performance of a transmission device, there is a reduction in time and cost.

Claims (2)

In order to perform performance monitoring and control for the optical transmission device of the second station having a different protocol in the monitoring computer connected to the optical transmission device of the first station, the wireless transmission device of the first station and the wireless transmission device of the second station are used. In the method for transmitting supervisory control information between end devices of a heterogeneous protocol relay device receiving status information of a second station optical transmission device, In the case where the radio transmission device of the first station transmits a status information request command of the optical transmission device of the second station to the radio transmission device of the second station having a different protocol, an overhead is added to the command and inserted into the DCC frame for transmission. Doing; In the case where the radio transmission device of the second station transmits the status information of the optical transmission device of the second station according to the request in the step from the radio transmission device of the first station having a different protocol, the overhead is added to the corresponding information. Transmitting supervisory control information between end devices of a heterogeneous protocol relay device, comprising the step of inserting the frame into a frame and transmitting the same. The method of claim 1, wherein the overhead configuration is A device classification tag containing information for recognizing a protocol of each corresponding device between heterogeneous devices; A method for transmitting supervisory control information between end devices of a heterogeneous protocol relay device, comprising a transmission frame error detection signal capable of detecting an error in information transmission.