KR20020075550A - Eoc message response method in shdsl system - Google Patents

Abstract

The present invention relates to an embedded operations channel (EOC) message response method in a single pair high speed digital subscriber line (SHDSL) system. In particular, the STU-R (SHDSL at the Remote End) 200 is the STU-C ( A first step S1 of receiving an EOC message request signal 10 from an SHDSL at the Central Office (100); And after the STU-R 200 confirms the type of the EOC message request signal 10 received from the STU-C 100, collects operation / management information according to control information of the request signal, or operates / manages an operation. At the same time as the second step (S2) to configure the corresponding EOC message response signal 20 and transmits to the STU-C (100), the present invention is STU-C and STU- By implementing the operation management information transfer algorithm between R to enable the overall and efficient network management of the SHDSL system, there is an excellent effect of realizing the stabilization of the system.

Description

EOC message response method in the SHSDSL system {EOC MESSAGE RESPONSE METHOD IN SHDSL SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an EOC message response method in a Single Pair High Speed Digital Subscriber Line (SHDSL) system. For example, STU-C (SHDSL at the Central Office; hereinafter referred to as "STU-C") and STU-R ("STU-R") are used by the EOC message to drive the SHDSL system. It refers to a method of responding to the EC message in the SHS system that delivers the operation management information.

As is well known, the G.shdsl (G.991.2) standard is a standard for EOC message requests and responses in SHDSL systems.

However, in the conventional SHDSL system, the operation management information between the STU-C and the STU-R could not be transmitted because an algorithm for transmitting the operation management information between the STU-C and the STU-R was not implemented on the basis of the above-mentioned standard. As a result, overall and efficient network management of the SHDSL network is difficult and the entire system becomes unstable.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to implement an operation management information transfer algorithm between STU-C and STU-R to enable overall and efficient network management of the SHDSL system. The present invention provides a method for responding to an EC message in a SDS system.

In order to achieve the above object, the EOC message response method in the SHS system of the present invention includes a STU-C equipped with an EOC buffer and a STU-R equipped with an EOC buffer at the same time as it is mounted at a telephone station. In the response method for the EOC message request in the configured SHDSL system,

A first step in which the STU-R receives an EOC message request signal from the STU-C; And

The STU-R checks the type of the EOC message request signal received from the STU-C, and then performs operation / management information collection or operation / management operation according to the control information of the request signal and simultaneously responds to the corresponding EOC message. And a second step of constructing a signal and transmitting the signal to the STU-C.

In addition, the EOC message response method in the SHS system of the present invention includes an EOC in an SHDSL system including a STU-C equipped with an EOC buffer and a STU-R equipped with an EOC buffer at the same time as a subscriber station. In the response method to the message request,

Step 101, the STU-C receiving an EOC message request signal from the STU-R; And

The STU-C checks the type of the EOC message request signal received from the STU-R, and then performs operation / management information collection or operation / management operation according to the control information of the request signal, and simultaneously responds to the corresponding EOC message. It is characterized by consisting of the 102 step of constructing a signal and transmitting to the STU-R.

On the other hand, the present invention is an SHDSL system having a modem in a network center and a modem in a remote location,

A function of checking the source and ID of the request signal and identifying the type of the request signal when the request signal for the EOC message is received for delivery of operation / management information of the SHDSL system; And

According to the type of the EOC message request signal, a computer-readable program is recorded for realizing the function of collecting the operation / management information or operating / management operation and constructing and transmitting the corresponding EOC message response signal. Provide a record carrier.

1 is a functional block diagram showing the configuration of a SHS system to which the present invention is applied;

2 is an operation flowchart illustrating a method of responding to an EC message in an SHS system according to an embodiment of the present invention;

3 is an operation flowchart showing the detailed operation of the first step (S1) in the EOC message response method in the SHS system according to FIG.

4 is an operation flowchart showing the detailed operation of the second step (S2) in the EOC message response method in the SHS system according to FIG.

FIG. 5 is a signal flowchart illustrating a method of responding to an EC message in an SHS system according to FIG. 2; FIG.

6 is an operational flowchart showing a method for responding to an EC message in an SHS system according to this embodiment of the present invention;

FIG. 7 is an operation flowchart showing a detailed operation of step 101 in step S101 in the EOC message response method in the SHS system according to FIG. 6;

FIG. 8 is an operation flowchart illustrating a detailed operation of step 102 (S102) in the method for responding to an EC message in the SHS system according to FIG. 6;

FIG. 9 is a signal flowchart illustrating a method of responding to an EC message in an SHD system according to FIG. 6; FIG.

FIG. 10A is a diagram illustrating a configuration of an EOC message request signal in an EOC message response method in a SHS system according to FIG. 2 or 6;

FIG. 10B is a diagram illustrating a configuration of an EOC message response signal in the EOC message response method in the SHS system according to FIG. 2 or 6.

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

100: STU-C 101: EOC buffer

200: STU-R 201: EOC Buffer

Hereinafter, an EC message response method in an SHS system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a functional block diagram of a general SDS system to which the present invention is applied, and the SHD system described above is composed of an STU-C 100 and a STU-R 200.

The STU-C 100 is equipped with an EOC buffer 101 for storing an EOC message request signal and mounted at a telephone center which is a network center. The STU-C 100 transmits text, video, A module for performing bidirectional symmetric high-speed communication of file data. Upon receiving an EOC message request signal from the STU-R 200, it performs operation / management information collection or operation / management operation according to the type of the request signal. It configures the corresponding EOC message response signal and at the same time transmits to the STU-R (200).

In addition, the STU-R (200) is equipped with an EOC buffer 201 for storing the EOC message request signal and mounted on the remote user side, at the speed of 2.3Mbps, text, video, This module performs bidirectional symmetric high-speed communication of file data. When receiving the EOC message request signal from the STU-C 100, the module performs operation / management information collection or operation / management operation according to the request signal type. A corresponding EOC message response signal is configured and transmitted to the STU-C 100 at the same time.

Next, an EOC message response method in the SHS system according to an embodiment of the present invention using the SHS system configured as described above will be described with reference to FIG. 2.

First, as shown in FIG. 5, the STU-R 200 receives an EOC message request signal from the STU-C 100 (S1). At this time, the EOC message request signal 10 consists of a 4-bit source address [bit 7..4] and a 4-bit destination address [bit 3..0], as shown in FIG. 10A. A header area 11 storing the sender information of the request signal 10, a 1-byte message ID area 12 storing ID information of which signal the EOC message request signal 10 is, and an EOC message request A control information storage area 13 of one byte in which control information is stored.

Hereinafter, the detailed operation process of the first step S1 will be described in more detail with reference to FIG. 3. First, the STU-R 200 stores an EOC message request signal in its EOC buffer 201. Then, it is determined whether an interrupt has occurred (S1-1).

At this time, if the interrupt according to the reception of the EOC message request signal 10 does not occur in step 1-1 (S1-1) (NO), the process proceeds to step 1-1 (S1-1) again. When an interrupt occurs in response to receiving the EOC message request signal 10 (YES), the STU-R 200 determines whether the source of the EOC message request signal 10 is the STU-C 100. The source address [bit 7..4] and the destination address [bit 3..0] of the header area 11 are judged, and if the source is not the STU-C 100 (NO), the first step 1-1 again. If the source is the STU-C 100, the process proceeds to the second step S2 (S1-2).

In addition, after the above-described first step S1, the STU-R 200 checks the type of the EOC message request signal 10 received from the STU-C 100 and according to the control information of the request signal. At the same time performing the operation / management information collection, or operation / management operation to configure the corresponding EOC message response signal and transmits to the STU-C (100) as shown in Figure 5 (S2). At this time, the EOC message response signal 20 is composed of a 4-bit source address [bit 7..4] and a 4-bit destination address [bit 3..0], as shown in FIG. 10B. A header area 21 storing the sender information of the response signal 20, a message ID area 22 storing ID information of which signal the EOC message response signal 20 is, and result data for the EOC message request It consists of a stored EOC message storage area (23).

Hereinafter, the detailed operation of the second step S2 will be described in more detail with reference to FIG. 4. First, the STU-R 200 checks the message ID of the EOC message request signal 10. It is determined whether or not the request signal is a signal (S2-1).

At this time, if the EOC message request signal 10 received from the STU-C 100 in step 2-1 (S2-1) is a modem status confirmation signal (Discovery Probe), the STU-R (200). After checking the current driving state of its own constitutes an EOC message response signal 20 as a result (S2-2).

Thereafter, the STU-R 200 transmits an EOC message response signal 20 to the STU-C 100 as shown in FIG. 5 to the modem status confirmation signal (Discovery Probe) (S2- 3).

On the other hand, if the EOC message request signal 10 received from the STU-C 100 in step 2-1 (S2-1) is an inventory request signal (Inventory Request), the STU-R (200) itself After collecting basic list data such as a margin, CRC error, speed, and the like, an EOC message response signal 20 is formed (S2-4).

Thereafter, the STU-R 200 transmits an EOC message response signal 20 for the Inventory Request signal to the STU-C 100 as shown in FIG. 5 (S2-5). ).

In addition, if the EOC message request signal 10 received from the STU-C 100 in step 2-1 (S2-1) is a full status request signal, the STU-R 200. After collecting all state information such as its error rate, SNR margin, etc., configures the resultant EOC message response signal 20 (S2-6).

Thereafter, the STU-R 200 transmits the EOC message response signal 20 for the full status request signal to the STU-C 100 (S2-7).

On the other hand, if the EOC message request signal 10 received from the STU-C 100 in step 2-1 (S2-1) is a maintenance / preservation request signal (Maintenance Request), the STU-R (200) After collecting the operation-related information configures the resultant EOC message response signal 20 (S2-8).

Thereafter, the STU-R 200 transmits an EOC message response signal 20 for the maintenance request signal to the STU-C 100 as shown in FIG. 5 (S2). -9).

In addition, if the EOC message request signal 100 received from the STU-C 100 in step 2-1 (S2-1) is a soft restart request signal, the STU-R 200. Reboots his software and resets the link (S2-10).

If the EOC message request signal 10 received from the STU-C 100 in step 2-1 (S2-1) is a power back-off disableRequest signal, The STU-R 200 disables the power back-off function (S2-11).

Meanwhile, the EOC message response method in the SHS system according to the embodiment of the present invention using the SHS system configured as shown in FIG. 1 will be described with reference to FIG. 6.

First, as shown in FIG. 9, the STU-C 100 receives an EOC message request signal from the STU-R 200 (S101). At this time, the EOC message request signal 10 consists of a 4-bit source address [bit 7..4] and a 4-bit destination address [bit 3..0], as shown in FIG. 10A. A header area 11 storing the sender information of the request signal 10, a 1-byte message ID area 12 storing ID information of which signal the EOC message request signal 10 is, and an EOC message request A control information storage area 13 of one byte in which control information is stored.

Hereinafter, the detailed operation process of the 101 st step S101 will be described in more detail with reference to FIG. 7. First, the STU-C 100 first indicates that the EOC message request signal 10 has its own EOC buffer 101. ), It is determined whether an interrupt has occurred (S101-1).

At this time, if the interrupt according to the reception of the EOC message request signal 10 does not occur in step 101-1 (S101-1) (NO), the STU-C 100 returns to step 101-1 ( In step S101-1, if an interrupt occurs in response to the reception of the EOC message request signal 10 (YES), the STU-C 100 determines that the source of the EOC message request signal 10 is the STU-. Whether it is R 200 is determined based on the source address [bit 7..4] and the destination address [bit 3..0] of the header area 11, and if the source is not the STU-R 200 (NO). In step S101-1, if the source is the STU-R 200, the process proceeds to step 102 (S101-2).

In addition, after the above-described step 101 (S101), the STU-C 100 checks the type of the EOC message request signal 10 received from the STU-R 200 and according to the control information of the request signal. At the same time performing the operation / management information collection, or operation / management operation to configure the corresponding EOC message response signal and transmits to the STU-R 200 as shown in Figure 9 (S102). At this time, the EOC message response signal 20 is composed of a 4-bit source address [bit 7..4] and a 4-bit destination address [bit 3..0], as shown in FIG. 10B. A header area 21 storing the sender information of the response signal 20, a message ID area 22 storing ID information of which signal the EOC message response signal 20 is, and result data for the EOC message request It consists of a stored EOC message storage area (23).

Hereinafter, the detailed operation process of the 102 step (S102) will be described in more detail with reference to FIG. 8, first, the STU-C (100) checks the message ID of the EOC message request signal (10) It is determined whether or not the request signal is a signal (S102-1).

At this time, if the EOC message request signal 10 received from the STU-R 200 in step 102-1 (S102-1) is a modem status confirmation signal (Discovery Probe), the STU-C 100 After confirming its current driving state, configures the resultant EOC message response signal 20 (S102-2).

Thereafter, the STU-C 100 transmits an EOC message response signal 20 for the modem status confirmation signal (Discovery Probe) to the STU-R 200 as shown in FIG. 9 (S102-). 3).

Meanwhile, if the EOC message request signal 10 received from the STU-R 200 in step 102-1 is an inventory request signal, the STU-C 100 itself. After collecting basic list data such as a margin, CRC error, speed, and the like, an EOC message response signal 20 is formed (S102-4).

Thereafter, the STU-C 100 transmits the EOC message response signal 20 for the Inventory Request signal to the STU-R 200 as shown in FIG. 9 (S102-5). ).

In addition, if the EOC message request signal 10 received from the STU-R 200 in step 102-1 is a full status request, the STU-C 100. After collecting all the state information such as its own error rate, SNR margin, etc. configures the resultant EOC message response signal 20 (S102-6).

Thereafter, the STU-C 100 transmits the EOC message response signal 20 for the full status request signal to the STU-R 200 (S102-7).

On the other hand, if the EOC message request signal 10 received from the STU-R 200 in step 102-1 (S102-1) is a maintenance / preservation request signal (Maintenance Request), the STU-C (100) After collecting the operation-related information, and configures the resultant EOC message response signal 20 (S102-8).

Thereafter, the STU-C 100 transmits an EOC message response signal 20 to the maintenance / preservation request signal (Maintenance Request) to the STU-R 200 as shown in FIG. 9 (S102). -9).

In addition, if the EOC message request signal 100 received from the STU-R 200 in step 102-1 is a soft restart request, the STU-C 100. Reboots his software and resets the link (S102-10).

If the EOC message request signal 10 received from the STU-R 200 in step 102-1 is a power back-off disable request signal, The STU-C 100 disables the power back-off function (S102-11).

On the other hand, the present invention described above is capable of various substitutions, modifications and changes within the scope without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains to the above-described embodiments and attached It is not limited to the drawings.

As described above, according to the ECO message response method in the SHS system according to the present invention, by implementing the operation management information transfer algorithm between the STU-C and STU-R to enable the overall and efficient network management of the SHDSL system, It is an excellent effect to realize the stabilization of.

Claims (21)

A method of responding to an EOC message request in an SHDSL system composed of an STU-C equipped with an EOC buffer at the same time as a telephone station, and an STU-R equipped with an EOC buffer at the subscriber side, A first step in which the STU-R receives an EOC message request signal from the STU-C; And The STU-R checks the type of the EOC message request signal received from the STU-C, and then performs operation / management information collection or operation / management operation according to the control information of the request signal and simultaneously responds to the corresponding EOC message. A method for responding to an EC message in a SHS system, comprising a second step of constructing a signal and transmitting the signal to the STU-C. The method of claim 1, The EOC message request signal is composed of a four-bit source address [bit 7..4] and a four-bit destination address [bit 3..0] to store the sender information of the EOC message request signal; A message ID area storing ID information on which signal is the EOC message request signal; And An EOC message response method in a SHS system, characterized by comprising a control information storage area storing control information related to an EOC message request. The method of claim 1, The EOC message response signal is composed of a four-bit source address [bit 7..4] and a four-bit destination address [bit 3..0] to store sender information of the EOC message response signal; A message ID area storing ID information on which signal the EOC message response signal is; And An EOC message response method in a SHS system, wherein the EOC message storage area stores result data for an EOC message request. The method of claim 1, The first step may include the steps 1-1 of the STU-R determining whether an interrupt has occurred as the EOC message request signal is stored in its EOC buffer; And If the interrupt according to the reception of the EOC message request signal does not occur in step 1-1, the process proceeds to step 1-1 again. If the interrupt occurs according to the reception of the EOC message request signal, the STU-R It is determined whether the source of the EOC message request signal is the STU-C. If the source is not the STU-C, the process proceeds to step 1-1 again. If the source is the STU-C, the second step. EOC message response method in the SHS system, characterized in that consisting of the first step 1-2 proceeds to. The method of claim 1, The second step may include: a second step of the STU-R checking a message ID of the EOC message request signal and determining whether the request signal is a signal; If the EOC message request signal received from the STU-C in step 2-1 is a modem status check signal (Discovery Probe), the STU-R checks its current driving state and then the result of the EOC message response signal. Step 2-2 to configure; And And step 2-3 of the STU-R transmitting the EOC message response signal to the STU-C for the modem status confirmation signal (Discovery Probe). The method of claim 5, If the EOC message request signal received from the STU-C in step 2-1 is an inventory request signal, the STU-R collects basic inventory data such as its margin, CRC error, speed, etc. A second step of configuring an EOC message response signal as a result; And And step 2-5 of the STU-R transmitting an EOC message response signal for the Inventory Request signal to the STU-C. The method of claim 5, If the EOC message request signal received from the STU-C in step 2-1 is a full status request signal, the STU-R collects all status information such as its error rate, SNR margin, etc. Steps 2-6 of constructing an EOC message response signal as a result value; And The ETU message response in the SHS system, wherein the STU-R further includes steps 2-7 of transmitting an EOC message response signal to the STU-C for the full status request signal. Way. The method of claim 5, If the EOC message request signal received from the STU-C in step 2-1 is a maintenance request signal (Maintenance Request), the ETU message response signal is the result after the STU-R collects operation related information. Step 2-8 to configure; And The ETU message response of the SSL system further includes steps 2-9 of the STU-R transmitting an EOC message response signal for the maintenance request signal to the STU-C. Way. The method of claim 5, If the EOC message request signal received from the STU-C in step 2-1 is a soft restart request signal (Soft Restart Request), the STU-R further comprises steps 2-10 to restart; EOC message response method in the SHDL system. The method of claim 5, If the EOC message request signal received from the STU-C in step 2-1 is a power back-off disable request, the STU-R disables the power back-off function. Further comprising steps 2-11. A method of responding to an EOC message request in an SHDSL system composed of an STU-C equipped with an EOC buffer at the same time as a telephone station, and an STU-R equipped with an EOC buffer at the subscriber side, Step 101, the STU-C receiving an EOC message request signal from the STU-R; And The STU-C checks the type of the EOC message request signal received from the STU-R, and then performs operation / management information collection or operation / management operation according to the control information of the request signal, and simultaneously responds to the corresponding EOC message. ECO message response method in a SHS system, characterized in that step 102 is configured to transmit a signal to the STU-R. The method of claim 11, The EOC message request signal is composed of a four-bit source address [bit 7..4] and a four-bit destination address [bit 3..0] to store the sender information of the EOC message request signal; A message ID area storing ID information on which signal is the EOC message request signal; And An EOC message response method in a SHS system, characterized by comprising a control information storage area storing control information related to an EOC message request. The method of claim 11, The EOC message response signal is composed of a four-bit source address [bit 7..4] and a four-bit destination address [bit 3..0] to store sender information of the EOC message response signal; A message ID area storing ID information on which signal the EOC message response signal is; And An EOC message response method in a SHS system, wherein the EOC message storage area stores result data for an EOC message request. The method of claim 11, Step 101 is a step 101-1 in which the STU-C determines whether an interrupt has occurred as the EOC message request signal is stored in its EOC buffer; And If the interrupt according to the reception of the EOC message request signal does not occur in step 101-1, the process proceeds to the step 101-1 again, and when the interrupt occurs according to the reception of the EOC message request signal, the STU-C It is determined whether the origin of the EOC message request signal is the STU-R, and if the origin is not the STU-R, the process proceeds to step 101-1 again; if the origin is the STU-R, the step 102 EOC message response method in a SHS system, characterized in that the step 101-2 proceeds to. The method of claim 11, Step 102-1 further includes: step 102-1 of the STU-C checking a message ID of the EOC message request signal and determining whether the request signal is a signal; If the EOC message request signal received from the STU-R in step 102-1 is a modem status check signal (Discovery Probe), the STU-C checks its current driving state and then the result of the EOC message response signal. 102-2 step of configuring; And Step 102-3 in which the STU-C transmits an EOC message response signal to the STU-R in response to the modem status confirmation signal (Discovery Probe). The method of claim 15, If the EOC message request signal received from the STU-R in step 102-1 is an inventory request signal, the STU-C collects basic inventory data such as its margin, CRC error, speed, etc. Step 102-4 of constructing an EOC message response signal as a result value; And And step 102-5 of transmitting, by the STU-C, an EOC message response signal for the Inventory Request signal to the STU-R. The method of claim 15, If the EOC message request signal received from the STU-R in step 102-1 is a full status request signal, the STU-C collects all state information such as its error rate, SNR margin, etc. Step 102-6 of constructing an EOC message response signal as a result value; And The ETU message response of the SSH-SL system further includes steps 102-7 of the STU-C transmitting an EOC message response signal to the STU-R in response to the full status request signal. Way. The method of claim 15, If the EOC message request signal received from the STU-R in step 102-1 is a maintenance / preservation request signal, the STU-C collects operation related information and then the EOC message response signal as a result value. Step 102-8 to configure; And The ETU message response of the SSL system further comprises step 102-9 of the STU-C transmitting an EOC message response signal to the STU-R in response to a maintenance request. Way. The method of claim 15, If the EOC message request signal received from the STU-R in step 102-1 is a soft restart request signal, the step 102-10 further comprises restarting the STU-C. EOC message response method in the SHDL system. The method of claim 15, If the EOC message request signal received from the STU-R in step 102-1 is a power back-off disable request signal, the STU-C disables the power back-off function. Further comprising the step 102-11. In an SHDSL system equipped with a modem in a network center and a modem in a remote location, A function of checking the source and ID of the request signal and identifying the type of the request signal when the request signal for the EOC message is received for delivery of operation / management information of the SHDSL system; And According to the type of the EOC message request signal, a computer-readable program is recorded for realizing the function of collecting the operation / management information or operating / management operation and constructing and transmitting the corresponding EOC message response signal. Record carrier.