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CN101834686B - Method and system for synchronizing comprehensive communication channel work mode - Google Patents

Method and system for synchronizing comprehensive communication channel work mode Download PDF

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Publication number
CN101834686B
CN101834686B CN201010160573.2A CN201010160573A CN101834686B CN 101834686 B CN101834686 B CN 101834686B CN 201010160573 A CN201010160573 A CN 201010160573A CN 101834686 B CN101834686 B CN 101834686B
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gcc
working mode
sending
monitoring
receiving
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CN101834686A (en
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刘晓东
张志辉
徐坤
周新明
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Beijing Zhongxing Guangtai Software Co ltd
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ZTE Corp
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Abstract

The invention discloses a method for synchronizing a GCC (GNU Computer Compiler) work mode. A sending end sends self used GCC work mode codes to a receiving end through overhead bytes or monitor information; the receiving end reads the GCC work mode codes in the overhead bytes or the monitor information to obtain the GCC work mode; and the receiving end regulates the self used GCC work mode based on the obtained GCC work mode. The invention also discloses a system for synchronizing the GCC work mode. By adopting the method and the system, the GCC work mode of the receiving end is automatically synchronized with that of the sending end, and the efficiency and the stability of signal transmission are enhanced.

Description

Method and system for synchronizing working modes of integrated communication channel
Technical Field
The present invention relates to the field of Optical Transport Networks (OTN), and in particular, to a method and a system for synchronizing the working modes of a comprehensive communication channel (GCC).
Background
The optical transport network is an optical layer transport network based on wavelength division multiplexing technology, and is a new generation 'digital transport system' and 'optical transport system' specified by a series of recommendations of international telecommunication union telecommunication standardization sector (ITU-T) such as physical layer interface standards G.872, G.709, G.798, etc., which integrates the advantages of Synchronous Digital Hierarchy (SDH) and Wavelength Division Multiplexing (WDM), and is a backbone transport network of the next generation.
The traffic signals and non-traffic signals in the OTN are transmitted in a frame structure and define rich overhead bytes, which are reserved bytes for each frame for transmitting specific information. The g.709 standard defines three fields in the overhead byte of OTN, where the three fields are referred to as GCC, the content of GCC transmission is determined by an equipment provider, and communication management information of the equipment provider can be transmitted, where the communication management information includes network element configuration, etc., where the field of GCC0 is located in an optical channel transport unit (OTU) of order k, i.e., the 11 st to 12 th rows of the overhead byte of OTUk, the field of GCC1 is located in an optical channel data unit (ODU) of order k, i.e., the 1 st to 2 nd rows of the overhead byte of ODUk, and the field of GCC2 is located in the 3 rd to 4 th rows of the overhead byte of ODUk, where the overhead byte of OTUk and the overhead byte of ODUk both refer to different positions of the overhead byte.
When GCC transmits information, a GCC working mode of a transmitting end and a GCC working mode of a receiving end are required to be kept consistent, namely, a channel and transmission content are kept consistent, the GCC working mode, namely, the content transmitted by GCC generally comprises three GCC working modes of transmitting monitoring channel information, transmitting special communication information, and commonly transmitting the monitoring channel information and the special communication information, and if the GCC working modes of the transmitting end and the receiving end are inconsistent, the receiving end cannot compile the received information of the transmitting end, so that the information transmission is interrupted. At present, in practical applications, a sending terminal GCC working mode and a receiving terminal GCC working mode are generally set respectively, so that reasons such as different GCC working mode settings or misoperation of the sending terminal and the receiving terminal often occur, and information cannot be transmitted correctly.
Disclosure of Invention
In view of the above, the present invention provides a method and a system for synchronizing GCC working modes, so that the GCC working mode at the receiving end is automatically synchronized with the transmitting end, thereby improving the efficiency and stability of signal transmission.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a GCC working mode synchronization method, which comprises the following steps:
the sending end sends the GCC working mode code used by the sending end to the receiving end through the overhead byte or the monitoring information, the receiving end reads the GCC working mode code in the overhead byte or the monitoring information to obtain the GCC working mode, and the GCC working mode used by the receiving end is adjusted according to the obtained GCC working mode.
In the above solution, before the sending end sends the GCC working mode code used by itself to the receiving end through the overhead byte or the monitoring information, the method further includes: the sending end selects a GCC working mode; or the network element service monitoring unit in the OTN selects the GCC working mode and sends the GCC working mode to the sending terminal; and the transmitting end queries the GCC working mode coding list according to the GCC working mode to obtain the GCC working mode coding.
In the foregoing solution, when the network element service monitoring unit selects the GCC working mode, the method specifically includes: inquiring GCC working mode codes corresponding to GCC working modes used by the GCC working mode codes, inserting the obtained GCC working mode codes into overhead bytes, and sending the overhead bytes to a receiving end; a receiving end reads GCC working mode codes in overhead bytes, and queries a GCC working mode code list according to the read GCC working mode codes to obtain a GCC working mode; determining that the receiving end supports the GCC working mode, the obtained GCC working mode is different from the GCC working mode used by the receiving end, and setting the GCC working mode used by the receiving end as the obtained GCC working mode; and determining that the receiving end does not support the GCC working mode, sending alarm information which does not support the GCC working mode to the network element monitoring unit, receiving the alarm information sent by the receiving end by the network element service monitoring unit, selecting another GCC working mode and sending the selected GCC working mode to the sending end.
In the above scheme, when the sending end selects the working mode, the method specifically includes: the sending end inserts the GCC working mode code into a specific position of the monitoring information and sends the GCC working mode code to the receiving end through the monitoring information; a receiving end reads monitoring information and reads a GCC working mode code through a specific position of the GCC working code; inquiring a GCC working mode coding list according to the read GCC working mode codes to obtain a GCC working mode; determining that the receiving end supports the GCC working mode, the obtained GCC working mode is different from the GCC working mode used by the receiving end, and setting the GCC working mode of the receiving end as the obtained GCC working mode; determining that the receiving end does not support the GCC working mode, inserting the alarm information which does not support the GCC working mode into the monitoring information, and sending the monitoring information to the sending end; the sending end receives the monitoring information, reads the alarm information in the monitoring information, selects another GCC working mode and sends the monitoring information to the receiving end.
In the above scheme, the method further comprises: and adding a check bit in the GCC working mode code, and after receiving the GCC working mode code, a receiving end checks the obtained GCC working mode code according to the check bit to determine the correctness of the GCC working mode code.
The invention also provides a system for synchronizing the GCC working modes, which comprises:
the transmitting terminal is used for transmitting the GCC working mode codes used by the transmitting terminal through overhead bytes or monitoring signals;
and the receiving end is used for reading overhead bytes or GCC working mode codes in the monitoring signals, acquiring the GCC working mode and adjusting the GCC working mode used by the receiving end according to the acquired GCC working mode.
In the above solution, the system further includes: the network element service monitoring unit is used for selecting a GCC working mode and sending the GCC working mode to the sending end; or, the sending end control unit is used for selecting the GCC working mode and sending the GCC working mode to the sending end.
In the above scheme, when the network element service monitoring unit selects the GCC working mode; the sending terminal comprises a sending terminal OTN processing unit, and the sending terminal OTN processing unit is used for inserting the GCC working mode codes into the overhead bytes and sending the overhead bytes; the receiving end comprises a receiving end OTN processing unit, and the receiving end OTN processing unit is used for reading GCC working mode codes in overhead bytes, determining that the GCC working mode is supported and is not consistent with the GCC working mode used by the receiving end OTN processing unit, and modifying the GCC working mode used by the receiving end OTN processing unit into the obtained GCC working mode; determining that the GCC working mode is not supported, and sending alarm information which does not support the GCC working mode to a network element service monitoring unit; correspondingly, the network element service monitoring unit is further configured to, when receiving the alarm information that is sent by the receiving-end OTN processing unit and does not support the GCC working mode, select another GCC working mode and send the GCC working mode to the sending-end OTN processing unit.
In the above scheme, when the sending end control unit selects the GCC working mode code, the receiving end includes a receiving end OTN processing unit, a receiving end GCC working mode code extraction unit, and a receiving end control unit; the sending terminal comprises a sending terminal OTN processing unit; the transmitting terminal OTN processing unit is used for transmitting a signal containing the GCC working mode code used by the transmitting terminal OTN processing unit to the receiving terminal GCC working mode code extraction unit and the receiving terminal OTN processing unit; the receiving terminal GCC working mode code extracting unit is used for extracting the GCC working mode code according to the received signal containing the GCC working mode code and sending the GCC working mode code to the receiving terminal control unit; the receiving end control unit is used for sending the received GCC working mode code to the receiving end OTN processing unit; and the receiving end OTN processing unit is used for receiving the signal containing the GCC working mode code used by the receiving end OTN processing unit and processing the signal according to the corresponding GCC working mode according to the received GCC working mode code.
In the above scheme, the receiving end GCC working mode code extracting unit is specifically configured to receive a signal of the sending end OTN processing unit, read a GCC working mode code from an overhead byte, and send the read GCC working mode code to the receiving end control unit; correspondingly, the sending end OTN processing unit is specifically configured to insert the GCC working mode code into the overhead byte and send the overhead byte.
In the foregoing solution, when the sending-end control unit selects the GCC working mode, the sending end includes: the system comprises a sending end OTN processing unit, a sending end monitoring processing unit, a sending end OTN signal and monitoring signal processor; the receiving end includes: the receiving terminal OTN signal and monitoring signal processor, the receiving terminal OTN processing unit, the receiving terminal control unit, the receiving terminal monitoring processing unit; the sending terminal control unit is specifically used for selecting the GCC working mode to send to the sending terminal OTN processing unit and sending the selected GCC working mode code to the sending terminal monitoring processing unit; the sending terminal OTN processing unit is used for sending the OTN signal to the sending terminal OTN signal and monitoring signal processor according to the received GCC working mode; the sending terminal monitoring processing unit is used for receiving the GCC working mode codes sent by the sending terminal control unit, inserting the GCC working mode codes into frames where monitoring signals are located, and sending the monitoring signals to the sending terminal OTN signal and monitoring signal processor; the OTN signal and monitoring signal processor of the sending terminal is used for synthesizing the OTN signal to be sent and the monitoring signal into an optical signal and sending the optical signal; the receiving end OTN signal and monitoring signal processor is used for decomposing the received signal into an OTN signal and a monitoring signal according to different frequencies, transmitting the OTN signal to the receiving end OTN processing unit and transmitting the monitoring signal to the receiving end monitoring processing unit; the receiving end OTN processing unit is used for receiving the OTN signal and adjusting the GCC working mode according to the GCC working mode code sent by the receiving end control unit; the receiving end monitoring processing unit is used for receiving the monitoring signal, extracting the GCC working mode code in the monitoring signal according to the position of the GCC working mode code in the monitoring signal and sending the GCC working mode code to the receiving end control unit; and the receiving end control unit is used for receiving the GCC working mode codes sent by the receiving end monitoring processing unit and sending the obtained GCC working mode codes to the receiving end OTN processing unit.
In the above scheme, the receiving-end OTN processing unit is specifically configured to determine that the obtained GCC working mode is supported and is different from a GCC working mode used by the receiving-end OTN processing unit, and process the received signal according to the received GCC working mode; the receiving end OTN processing unit is also used for determining that the obtained GCC working mode is not supported, and sending alarm information which does not support the GCC working mode to the receiving end control unit; correspondingly, the receiving end control unit is used for sending the alarm information to the receiving end monitoring processing unit; the receiving end monitoring processing unit is used for inserting the alarm information into a monitoring signal and sending the monitoring signal to the sending end OTN signal and monitoring signal processor through the receiving end OTN signal and monitoring signal processor; the sending end OTN signal and monitoring signal processor is also used for receiving the monitoring signal and sending the monitoring signal to the sending end monitoring processing unit; the sending end monitoring processing unit is also used for receiving the monitoring signal, extracting the alarm information according to the position of the alarm information and sending the alarm information to the sending end control unit; the sending end control unit is also used for receiving the alarm information, selecting another GCC working mode to send to the sending end OTN processing unit, and sending the corresponding GCC working mode code to the sending end monitoring processing unit.
Therefore, by adopting the method and the system for synchronizing the GCC working modes, the receiving end of the OTN network element adjusts the GCC working mode used by the receiving end by acquiring the GCC working mode sent by the sending end of the OTN network element, thereby realizing the synchronization of the GCC working modes of the sending end and the receiving end, ensuring the correct transmission of signals at the two ends and improving the efficiency and the stability of signal transmission.
Drawings
FIG. 1 is a schematic flow chart of a method for achieving GCC operation mode synchronization according to the present invention;
FIG. 2 is a schematic diagram of the system for achieving GCC mode synchronization via overhead bytes according to the present invention;
FIG. 3 is a schematic diagram of a system for achieving GCC working mode synchronization via overhead bytes when a transmitting end and a receiving end support the consistency of the GCC working modes;
FIG. 4 is a schematic diagram of the system for achieving GCC operation mode synchronization by monitoring signals according to the present invention.
Detailed Description
The basic idea of the invention is: the transmitting end transmits a signal containing the GCC working mode code used by the transmitting end to the receiving end, and the receiving end adjusts the GCC working mode used by the receiving end according to the obtained GCC working mode after obtaining the GCC working mode of the transmitting end.
The method for realizing GCC working mode synchronization of the invention is shown in figure 1, and the specific flow is as follows:
step 101, a sending end sends GCC working mode codes used by the sending end to a receiving end through overhead bytes or monitoring signals;
here, the GCC operating modes supported by the receiving end and the transmitting end are counted in advance, and the GCC operating modes and the corresponding GCCs are encoded and stored in the transmitting end and the receiving end, respectively.
The method comprises the steps that a sending end sends a signal containing GCC working mode codes used by the sending end to a receiving end, the GCC working mode codes can be obtained by inquiring a locally-stored GCC working mode code list according to a selected GCC working mode, the selected GCC working mode can be selected by a network element service monitoring processing unit in an OTN (over the top of the network) network and sent to the receiving end, wherein the sending end sends the GCC working mode to the receiving end through the OTN signal containing overhead bytes, and the overhead bytes comprise overhead reserved bytes, GCC overhead bytes and the like; or the GCC working mode can be selected by the sending end and sent to the receiving end through the monitoring signal or the overhead byte.
The sending the GCC working mode code used by the receiver to the receiving end through the overhead byte comprises the following steps: inserting GCC working mode codes into overhead bytes, and transmitting the overhead bytes by the GCC working mode codes, wherein the GCC working mode codes comprise the following specific processes: inserting codes of the GCC working mode into overhead reserved bytes, and transmitting the overhead reserved bytes through the overhead reserved bytes, wherein the overhead reserved bytes are blank bytes reserved in the overhead bytes; or presetting a GCC overhead byte of one frame in the multi-frame overhead for transmitting GCC working mode codes, wherein the MFAS byte in the frame structure is used for numbering the frames of transmission signals, and the numbering takes 0-255 as a period. For example: the GCC for the frame when each MFAS is set to 0 conveys the GCC operating mode encoding.
Or, the sending the GCC working mode code used by itself to the receiving end through the monitoring signal includes: the GCC working mode code is inserted into the monitoring signal, and the special position of the frame inserted into the monitoring signal, such as a frame head or a frame tail, can be preset through the sending of the monitoring signal so as to facilitate the positioning.
102, reading overhead bytes or GCC working mode codes in monitoring information by a receiving end to obtain a GCC working mode of the transmitting end;
here, the receiving end receives a signal sent by the sending end, and reads the GCC working mode code from the signal, where the GCC working mode code in the read overhead byte includes: a receiving end reads GCC working mode codes in overhead reserved bytes; alternatively, according to the GCC overhead byte of reading the preset frame, for example: when the frame number is 0, reading the numerical value in the GCC overhead byte of the frame with the number of 0, namely the GCC working mode code;
or, the reading of the GCC operation mode code in the monitor signal includes: and reading the GCC working mode code in the monitoring signal according to the position of the GCC working mode code.
And 103, the receiving end adjusts the GCC working mode used by the receiving end according to the obtained GCC working mode.
Here, the receiving end compares the obtained GCC working mode code with a locally stored GCC working mode code list, if the GCC working mode code is consistent with one of the list, the receiving end indicates that the receiving end supports the GCC working mode, obtains a corresponding GCC working mode according to the locally stored GCC working mode code list, compares the GCC working mode with the GCC working mode used by the receiving end, if the GCC working mode code list is consistent with the GCC working mode used by the receiving end, the receiving end does not process the GCC working mode used by the receiving end, and if the GCC working mode code is not consistent with the GCC working mode used by the receiving end, the receiving end sets the;
if the received signal is not in accordance with the list, namely the receiving end does not support the GCC working mode, sending alarm information to a network element service monitoring unit; or, inserting the alarm information into the monitoring information and sending the alarm information to the sending end, wherein the alarm information is the alarm information that the receiving end does not support the GCC working mode, and the network element service monitoring unit selects another GCC working mode and sends the alarm information to the receiving end through the receiving end; or, the sending end selects another GCC working mode code to send to the receiving end, and the receiving end continues to acquire the GCC working mode code from the sending end until the receiving end supports the acquired GCC working mode and does not send alarm information to the network element service monitoring unit or the sending end.
In order to avoid the situation, a check bit can be added in GCC working mode coding, after the receiving end receives the signal containing the GCC working mode coding of the transmitting end, the obtained GCC working mode coding can be checked according to the check bit, and therefore the correctness of the GCC working mode coding is determined. For example, the sum of the GCC working mode codes is used as a check bit, and the receiving end performs the sum operation after acquiring the GCC working mode codes, and if the sum is consistent with the check bit, it indicates that the GCC working mode codes are correct, otherwise, it is wrong. If the GCC working mode codes of two or more continuous frames are correct, the obtained GCC working mode codes are correct.
The invention also provides a system for synchronizing the GCC working mode, which comprises a sending end and a receiving end;
the transmitting terminal is used for transmitting the GCC working mode codes used by the transmitting terminal through overhead bytes or monitoring signals;
here, the GCC operation mode encoding may be acquired from a locally saved GCC operation mode encoding list according to the GCC operation mode;
and the receiving end is used for reading overhead bytes or GCC working mode codes in the monitoring signals, acquiring the GCC working mode and adjusting the GCC working mode used by the receiving end according to the acquired GCC working mode.
In the present invention, when the GCC working mode synchronization is implemented by using overhead bytes, as shown in fig. 2, in the GCC working mode synchronization system of the present invention, the sending end includes a sending end OTN processing unit 202, and the receiving end includes a receiving end OTN processing unit 203, the system further includes:
a network element service monitoring unit 201, configured to select a GCC working mode and send the GCC working mode to a sending end OTN processing unit 202.
The sending end OTN processing unit 202 is specifically configured to insert a GCC working mode code used by itself into an overhead byte and send the overhead byte; the method specifically comprises the following steps: inserting the GCC working mode code used by the GCC working mode code into the overhead byte and transmitting the overhead byte, or presetting the GCC overhead byte of one frame in the multi-frame overhead for transmitting the GCC working mode code, and inserting the GCC working mode code used by the GCC working mode code into the GCC overhead byte of the frame and transmitting the GCC overhead byte;
the receiving-end OTN processing unit 203 is specifically configured to receive a signal of the transmitting-end OTN processing unit 202, read a GCC working mode code from the overhead byte, determine that the GCC working mode is supported and is not consistent with a GCC working mode used by itself, and modify the GCC working mode used by itself into the obtained GCC working mode; determining that the GCC working mode is not supported, and sending alarm information which does not support the GCC working mode to a network element service monitoring unit; the reading of the GCC operating mode encoding from the overhead bytes comprises: reading GCC working mode codes in overhead reserved bytes or reading GCC working mode codes in GCC overhead bytes of preset frames; the determining that the GCC operation mode is supported and does not conform to the GCC operation mode used by the GCC operation mode comprises the following steps: comparing the obtained GCC working mode codes with a locally stored GCC working mode code list, if the obtained GCC working mode codes are consistent with one of the GCC working mode codes, continuing to compare the obtained GCC working mode codes with the currently used GCC working mode, and if the obtained GCC working mode codes are different from the currently used GCC working mode codes; the determining that the GCC mode of operation is not supported comprises: and determining that the obtained GCC working mode code does not accord with any code in a locally stored GCC working mode code list, wherein the alarm information is the alarm information which does not support the GCC working mode until the obtained GCC working mode is supported.
The network element service monitoring unit 201 is further configured to receive the alarm information sent by the receiving-end OTN processing unit 203, select another GCC working mode, and send the GCC working mode to the sending-end OTN processing unit.
When the sending end and the receiving end support the same GCC working mode, the present invention can also be implemented by the system shown in fig. 3, as shown in fig. 3, the system for synchronizing the GCC working mode includes: a sending end control unit 302, where the sending end includes a sending end OTN processing unit 301, and the receiving end includes a receiving end OTN processing unit 303, a receiving end GCC working mode encoding extraction unit 304, and a receiving end control unit 305; wherein,
a sending end control unit 302, configured to select a GCC working mode and send the GCC working mode to a sending end OTN processing unit 301;
the sending-end OTN processing unit 301 is configured to receive and store the GCC working mode sent by the sending-end control unit 302, and send a signal including a GCC working mode code used by the sending-end OTN processing unit 301 to the receiving-end OTN processing unit 303 and the receiving-end GCC working mode code extraction unit 304, where the GCC working mode code may be obtained from a locally stored GCC working mode code list according to the GCC working mode;
a receiving end GCC working mode code extracting unit 304, configured to extract a GCC working mode code according to a received signal including the GCC working mode code, and send the GCC working mode code to the receiving end control unit 305;
a receiving end control unit 305, configured to send the received GCC working mode code to the receiving end OTN processing unit 303;
the receiving end OTN processing unit 303 is configured to receive a signal including a GCC working mode code used by the receiving end OTN processing unit, and process the signal according to a corresponding GCC working mode according to the received GCC working mode code.
The receiving end GCC working mode code extracting unit 304 is specifically configured to receive a signal of the transmitting end OTN processing unit 301, read a GCC working mode code from an overhead byte, and send the read GCC working mode code to the receiving end control unit 305;
correspondingly, the sending-end OTN processing unit 301 is specifically configured to insert the GCC working mode code into the overhead byte and send the overhead byte.
In the present invention, when the GCC operation mode synchronization is realized by the monitoring signal, as shown in fig. 4, the GCC operation mode synchronization system includes: a sending end control unit 401, where the sending end includes a sending end OTN processing unit 402, a sending end monitoring processing unit 403, and a sending end OTN signal and monitoring signal processor 404; the receiving end comprises a receiving end OTN signal and monitoring signal processor 405, a receiving end OTN processing unit 406, a receiving end control unit 408 and a receiving end monitoring processing unit 407;
the sending end control unit 401 is configured to select a GCC working mode and send the GCC working mode to the sending end OTN processing unit 402, and send a selected GCC working mode code to the sending end monitoring processing unit 403; the GCC operating mode encoding can be obtained by querying a locally stored GCC operating mode list according to the GCC operating mode.
A sending end OTN processing unit 402, configured to send a corresponding OTN signal to the sending end OTN signal and monitor signal processor 404 according to the received GCC working mode;
a sending-end monitoring processing unit 403, configured to receive the GCC working mode code sent by the sending-end control unit 401, insert the received GCC working mode code into a frame where the monitoring signal is located, and may select a specific position of the frame to facilitate positioning, for example, a frame header or a frame tail, and send the monitoring signal containing the GCC working mode code to a sending-end OTN signal and monitoring signal processor 404;
a sending-end OTN signal and monitor signal processor 404, configured to combine the OTN signal to be sent and the monitor signal into an optical signal and send the optical signal;
a receiving end OTN signal and monitoring signal processor 405, configured to decompose a received optical signal into an OTN signal and a monitoring signal according to different frequencies, send the OTN signal to a receiving end OTN processing unit 406, and send the monitoring signal to a receiving end monitoring processing unit 407;
a receiving end OTN processing unit 406, configured to receive the OTN signal, and adjust the GCC working mode according to the GCC working mode code sent by the receiving end control unit 408;
the receiving end monitoring processing unit 407, configured to receive the monitoring signal, extract the GCC working mode code in the monitoring signal according to the position of the GCC working mode code in the monitoring signal, and send the GCC working mode code to the receiving end control unit 408;
the receiving end control unit 408 is configured to receive the GCC working mode code sent by the receiving end monitoring processing unit 407, and send the obtained GCC working mode code to the receiving end OTN processing unit 406.
The receiving end OTN processing unit 406 is specifically configured to determine that the GCC working mode supporting the obtaining is not consistent with the GCC working mode used by itself, where the determining that the GCC working mode supporting the obtaining is not consistent with the GCC working mode used by itself includes: comparing the received GCC working mode code with a locally stored GCC working mode code list, determining that the received GCC working mode code is consistent with one of the GCC working mode codes and the GCC working mode code is different from the currently used GCC working mode code.
A receiving end OTN processing unit 406, configured to determine that the obtained GCC working mode is not supported, send an alarm message that the GCC working mode is not supported to a receiving end control unit 408; the determining that the GCC mode of operation for acquisition is not supported comprises: the obtained GCC working mode code does not accord with any code in a locally stored GCC working mode code list;
correspondingly, the receiving end control unit 408 is configured to send the alarm information to the receiving end monitoring processing unit 407;
and the receiving end monitoring processing unit 407 is configured to insert the alarm information into a monitoring signal, insert a specific position of the monitoring signal, facilitate positioning, and send the monitoring signal containing the alarm information to the sending end OTN signal and monitoring signal processor 404 through the receiving end OTN signal and monitoring signal processor 405.
A sending-end OTN signal and monitoring signal processor 404, configured to receive a monitoring signal including alarm information, and send the monitoring signal to a sending-end monitoring processing unit 402;
a sending end monitoring processing unit 402, configured to receive a monitoring signal including alarm information, extract the alarm information according to a position of the alarm information, and send the alarm information to a sending end control unit 401;
the sending end control unit 401 is configured to receive the alarm information, select another GCC working mode to send to the sending end OTN processing unit 402, and send a corresponding GCC working mode code to the sending end monitoring processing unit 403.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.

Claims (12)

1. A method for integrated communication channel, GCC, mode synchronization, the method comprising:
the method comprises the steps that a sending end sends GCC working mode codes used by the sending end to a receiving end through overhead bytes or monitoring information, the receiving end reads the GCC working mode codes in the overhead bytes or the monitoring information to obtain GCC working modes, the obtained GCC working mode codes are compared with GCC working mode code lists stored locally, if the obtained GCC working mode codes are consistent with one of the code lists, corresponding GCC working modes are obtained according to the GCC working mode code lists stored locally, the obtained GCC working modes are compared with GCC working modes used by the sending end, if the obtained GCC working mode codes are consistent with the GCC working modes used by the sending end, the GCC working modes used by the sending end are not processed, and if the obtained GCC working modes are not consistent with the GCC working modes used; if the code list is not consistent with the code list, sending alarm information which does not support the GCC working mode to a network element monitoring unit or the sending end, and receiving another GCC working mode.
2. The method of claim 1, wherein before the sending end sends the GCC working mode code used by itself to the receiving end through the overhead byte or the monitoring information, the method further comprises:
the sending end selects a GCC working mode; or the network element service monitoring unit in the optical transmission network OTN selects the GCC working mode and sends the GCC working mode to the sending terminal;
and the transmitting end queries the GCC working mode coding list according to the GCC working mode to obtain the GCC working mode coding.
3. The method according to claim 2, wherein when the network element service monitoring unit selects the GCC operating mode, the method specifically comprises:
inquiring GCC working mode codes corresponding to GCC working modes used by the GCC working mode codes, inserting the obtained GCC working mode codes into overhead bytes, and sending the overhead bytes to a receiving end;
a receiving end reads GCC working mode codes in overhead bytes, and queries a GCC working mode code list according to the read GCC working mode codes to obtain a GCC working mode;
determining that the receiving end supports the GCC working mode, the obtained GCC working mode is different from the GCC working mode used by the receiving end, and setting the GCC working mode used by the receiving end as the obtained GCC working mode;
and determining that the receiving end does not support the GCC working mode, sending alarm information which does not support the GCC working mode to the network element monitoring unit, receiving the alarm information sent by the receiving end by the network element service monitoring unit, selecting another GCC working mode and sending the selected GCC working mode to the sending end.
4. The method according to claim 2, wherein when the sending end selects the working mode, the method specifically comprises:
the sending end inserts the GCC working mode code into a specific position of the monitoring information and sends the GCC working mode code to the receiving end through the monitoring information;
a receiving end reads monitoring information and reads a GCC working mode code through a specific position of the GCC working code; inquiring a GCC working mode coding list according to the read GCC working mode codes to obtain a GCC working mode;
determining that the receiving end supports the GCC working mode, the obtained GCC working mode is different from the GCC working mode used by the receiving end, and setting the GCC working mode of the receiving end as the obtained GCC working mode;
determining that the receiving end does not support the GCC working mode, inserting the alarm information which does not support the GCC working mode into the monitoring information, and sending the monitoring information to the sending end; the sending end receives the monitoring information, reads the alarm information in the monitoring information, selects another GCC working mode and sends the monitoring information to the receiving end.
5. The method according to any one of claims 1 to 4, characterized in that the method further comprises:
and adding a check bit in the GCC working mode code, and after receiving the GCC working mode code, a receiving end checks the obtained GCC working mode code according to the check bit to determine the correctness of the GCC working mode code.
6. A system for synchronizing GCC operating modes, the system comprising:
the transmitting terminal is used for transmitting the GCC working mode codes used by the transmitting terminal through overhead bytes or monitoring signals;
the receiving terminal is used for reading overhead bytes or GCC working mode codes in the monitoring signals, acquiring a GCC working mode, comparing the acquired GCC working mode codes with a locally stored GCC working mode code list, if the GCC working mode codes accord with one of the code lists, acquiring a corresponding GCC working mode according to the locally stored GCC working mode code list, comparing the GCC working mode with the GCC working mode used by the receiving terminal, if the GCC working mode codes accord with the GCC working mode used by the receiving terminal, not processing the GCC working mode used by the receiving terminal, and if the GCC working mode codes do not accord with the GCC working mode used by the receiving terminal, setting the GCC working mode used by the receiving terminal as the acquired; if the code list is not consistent with the code list, sending alarm information which does not support the GCC working mode to a network element monitoring unit or the sending end, and receiving another GCC working mode.
7. The system of claim 6, further comprising:
the network element service monitoring unit is used for selecting a GCC working mode and sending the GCC working mode to the sending end; or,
and the sending end control unit is used for selecting the GCC working mode and sending the GCC working mode to the sending end.
8. The system according to claim 7, wherein when the network element traffic monitoring unit selects the GCC mode of operation;
the sending terminal comprises a sending terminal OTN processing unit, and the sending terminal OTN processing unit is used for inserting the GCC working mode codes into the overhead bytes and sending the overhead bytes;
the receiving end comprises a receiving end OTN processing unit, and the receiving end OTN processing unit is used for reading GCC working mode codes in overhead bytes, determining that the GCC working mode is supported and is not consistent with the GCC working mode used by the receiving end OTN processing unit, and modifying the GCC working mode used by the receiving end OTN processing unit into the obtained GCC working mode; determining that the GCC working mode is not supported, and sending alarm information which does not support the GCC working mode to a network element service monitoring unit;
correspondingly, the network element service monitoring unit is further configured to, when receiving the alarm information that is sent by the receiving-end OTN processing unit and does not support the GCC working mode, select another GCC working mode and send the GCC working mode to the sending-end OTN processing unit.
9. The system according to claim 7, wherein when the sending-end control unit selects GCC working mode encoding, the receiving end includes a receiving-end OTN processing unit, a receiving-end GCC working mode encoding extraction unit, and a receiving-end control unit; the sending terminal comprises a sending terminal OTN processing unit;
the transmitting terminal OTN processing unit is used for transmitting a signal containing the GCC working mode code used by the transmitting terminal OTN processing unit to the receiving terminal GCC working mode code extraction unit and the receiving terminal OTN processing unit;
the receiving terminal GCC working mode code extracting unit is used for extracting the GCC working mode code according to the received signal containing the GCC working mode code and sending the GCC working mode code to the receiving terminal control unit;
the receiving end control unit is used for sending the received GCC working mode code to the receiving end OTN processing unit;
and the receiving end OTN processing unit is used for receiving the signal containing the GCC working mode code used by the receiving end OTN processing unit and processing the signal according to the corresponding GCC working mode according to the received GCC working mode code.
10. The system of claim 9,
the receiving end GCC working mode code extracting unit is specifically used for receiving a signal of the sending end OTN processing unit, reading a GCC working mode code from the overhead byte, and sending the read GCC working mode code to the receiving end control unit;
correspondingly, the sending end OTN processing unit is specifically configured to insert the GCC working mode code into the overhead byte and send the overhead byte.
11. The system according to claim 7, wherein when the sender-side control unit selects the GCC operation mode, the sender-side comprises: the system comprises a sending end OTN processing unit, a sending end monitoring processing unit, a sending end OTN signal and monitoring signal processor; the receiving end includes: the receiving terminal OTN signal and monitoring signal processor, the receiving terminal OTN processing unit, the receiving terminal control unit, the receiving terminal monitoring processing unit;
the sending terminal control unit is specifically used for selecting the GCC working mode to send to the sending terminal OTN processing unit and sending the selected GCC working mode code to the sending terminal monitoring processing unit;
the sending terminal OTN processing unit is used for sending the OTN signal to the sending terminal OTN signal and monitoring signal processor according to the received GCC working mode;
the sending terminal monitoring processing unit is used for receiving the GCC working mode codes sent by the sending terminal control unit, inserting the GCC working mode codes into frames where monitoring signals are located, and sending the monitoring signals to the sending terminal OTN signal and monitoring signal processor;
the OTN signal and monitoring signal processor of the sending terminal is used for synthesizing the OTN signal to be sent and the monitoring signal into an optical signal and sending the optical signal;
the receiving end OTN signal and monitoring signal processor is used for decomposing the received signal into an OTN signal and a monitoring signal according to different frequencies, transmitting the OTN signal to the receiving end OTN processing unit and transmitting the monitoring signal to the receiving end monitoring processing unit;
the receiving end OTN processing unit is used for receiving the OTN signal and adjusting the GCC working mode according to the GCC working mode code sent by the receiving end control unit;
the receiving end monitoring processing unit is used for receiving the monitoring signal, extracting the GCC working mode code in the monitoring signal according to the position of the GCC working mode code in the monitoring signal and sending the GCC working mode code to the receiving end control unit;
and the receiving end control unit is used for receiving the GCC working mode codes sent by the receiving end monitoring processing unit and sending the obtained GCC working mode codes to the receiving end OTN processing unit.
12. The system of claim 11,
the receiving end OTN processing unit is specifically used for determining that the obtained GCC working mode is supported and is different from the GCC working mode used by the receiving end OTN processing unit, and processing the received signal according to the received GCC working mode;
the receiving end OTN processing unit is also used for determining that the obtained GCC working mode is not supported, and sending alarm information which does not support the GCC working mode to the receiving end control unit;
correspondingly, the receiving end control unit is used for sending the alarm information to the receiving end monitoring processing unit;
the receiving end monitoring processing unit is used for inserting the alarm information into a monitoring signal and sending the monitoring signal to the sending end OTN signal and monitoring signal processor through the receiving end OTN signal and monitoring signal processor;
the sending end OTN signal and monitoring signal processor is also used for receiving the monitoring signal and sending the monitoring signal to the sending end monitoring processing unit;
the sending end monitoring processing unit is also used for receiving the monitoring signal, extracting the alarm information according to the position of the alarm information and sending the alarm information to the sending end control unit;
the sending end control unit is also used for receiving the alarm information, selecting another GCC working mode to send to the sending end OTN processing unit, and sending the corresponding GCC working mode code to the sending end monitoring processing unit.
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