CN106330372B - The synchronous method and device of clock time transfer mode in a kind of optical transport network - Google Patents
The synchronous method and device of clock time transfer mode in a kind of optical transport network Download PDFInfo
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- CN106330372B CN106330372B CN201510369545.4A CN201510369545A CN106330372B CN 106330372 B CN106330372 B CN 106330372B CN 201510369545 A CN201510369545 A CN 201510369545A CN 106330372 B CN106330372 B CN 106330372B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
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Abstract
The present invention provides the method and device that clock time transfer mode is synchronous in a kind of optical transport network, wherein method includes: when there are when the alarm of clock time sync break for clock time node, currently used clock time transfer mode is sent to receiving end, updates the clock time transfer mode of local current clock time node according to the clock time transfer mode received by receiving end；The clock time transfer mode response of receiving end feedback is received, is completed synchronous with receiving end clock time transfer mode.The embodiment of the present invention passes through the clock time transfer mode of synchronous receiving end and transmitting terminal, it is ensured that the correct transmission of both ends clock time signal improves the efficiency and stability of signal transmission.
Description
Technical field
Synchronous the present invention relates to clock time transfer mode in field of communication technology more particularly to a kind of optical transport network
Method and device.
Background technique
Service signal and non-traffic signal in optical transfer network are transmitted with frame structure, G.709 define abundant open
Byte is sold, we can use optical transfer network expense transmitting clock time information, but need transmitting terminal clock time transfer mode
It is consistent with receiving end clock time transfer mode, i.e. channel and transmission content is consistent, clock time transfer mode one
As include clock time transmission type, clock time packaged type and mostly important clock time Transfer pipe.If hair
The clock time transfer mode of sending end and receiving end is inconsistent, will can not be compiled because of receiving end received transmitting terminal letter
Breath causes clock time information transmission to be interrupted.Currently, in practical applications, transmitting terminal clock time transfer mode and receiving end
Clock time transfer mode is typically all to be respectively set, and therefore, often will appear the clock time due to transmitting terminal and receiving end
The reasons such as transfer mode setting difference or maloperation, cause clock time information that cannot correctly transmit.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of method that clock time transfer mode is synchronous in optical transport network
And device, it is synchronous with transmitting terminal clock time transfer mode that receiving end may be implemented, it is ensured that both ends clock time signal is just
Really transmission improves the efficiency and stability of signal transmission.
The embodiment of the present invention provides a kind of method that clock time transfer mode is synchronous in optical transport network, is applied to send
End, which comprises
When clock time node is alerted there are clock time sync break, by currently used clock time transfer mode
It is sent to receiving end, local current clock time node is updated according to the clock time transfer mode received by the receiving end
Clock time transfer mode；
The clock time transfer mode response for receiving the receiving end feedback, completes to transmit with the receiving end clock time
The synchronization of mode.
It is wherein, described that currently used clock time transfer mode is sent to receiving end, comprising:
Inquiry is obtained in clock time transmission operating mode list matches with currently used clock time transfer mode
Clock time transmission operating mode coding, wherein the clock time transmission operating mode list in record it is promising each when
The clock time transmission operating mode coding of clock time transfer mode configuration；
By the expense reserve bytes of clock time transmission operating mode coding insertion optical transfer network signal, by the light
Transmission net signal is sent to the receiving end.
It is wherein, described that currently used clock time transfer mode is sent to receiving end, comprising:
It will be monitored with the currently used matched clock time transmission operating mode coding insertion of clock time transfer mode
In signal, and the monitoring signal and optical transfer network signal synthesis optical signal are sent to the receiving end.
Wherein, it is described currently used clock time transfer mode is sent to receiving end after, receive the receiving end
Before the clock time transfer mode response of feedback, the method also includes:
The clock time transfer mode verification success message that the receiving end is sent is received, sends and confirms to the receiving end
Message updates the clock time transfer mode of local current clock time node by the receiving end according to the confirmation message.
The embodiment of the present invention provides a kind of method that clock time transfer mode is synchronous in optical transport network, is applied to receive
End, which comprises
Receive the clock time transfer mode matched clock time currently used with the transmitting terminal that transmitting terminal is sent
Operating mode coding is transmitted, operating mode coding is transmitted according to the clock time and obtains the currently used clock of the transmitting terminal
Time transfer mode；
If supporting the clock time transfer mode received coding, judge current clock time transfer mode and acquisition when
Whether clock time transfer mode is consistent；
If it is inconsistent, updating the clock time of current clock time node according to the clock time transfer mode of acquisition
Transfer mode, and to the transmitting terminal feedback clock time transfer mode response after updating completion.
Wherein, the clock time transfer mode currently used with the transmitting terminal for receiving transmitting terminal transmission is matched
Clock time transmits operating mode coding, specifically:
The optical transfer network signal for the carrying clock time transmission operating mode coding that the transmitting terminal is sent is received,
Described in clock time transmission operating mode code storage in the expense reserve bytes of the optical transfer network signal.
Wherein, the clock time transfer mode currently used with the transmitting terminal for receiving transmitting terminal transmission is matched
Clock time transmits operating mode coding, specifically includes:
Receive the optical signal for the carrying clock time transmission operating mode coding that transmitting terminal is sent；
According to the difference of frequency, the optical signal is resolved into optical transfer network signal and monitoring signal, wherein the monitoring
The clock time transmission operating mode coding is carried in signal；
The clock time carried in the monitoring signal transmission operating mode coding is sent to the optical transfer network
In signal.
Wherein, the clock time that the clock time transfer mode according to acquisition updates current clock time node transmits
Before mode, the method also includes:
When the clock time transfer mode of acquisition is available and with the clock time transfer mode of current clock time node not
When consistent, verification success message is sent to the transmitting terminal, and receive the confirmation message that the transmitting terminal returns.
The embodiment of the present invention provides the device that clock time transfer mode is synchronous in a kind of optical transport network, is applied to send
End, described device include:
Sending module, for when clock time node is alerted there are clock time sync break, when will be currently used
Clock time transfer mode is sent to receiving end, updates local work as according to the clock time transfer mode received by the receiving end
The clock time transfer mode of preceding clock time node；
First receiving module, for receiving the clock time transfer mode response of receiving end feedback, complete with it is described
The synchronization of receiving end clock time transfer mode.
Wherein, the sending module includes:
First submodule, for when inquiry is obtained with currently used clock in clock time transmission operating mode list
Between transfer mode matched clock time transmission operating mode coding, wherein remembering in clock time transmission operating mode list
Record the clock time transmission operating mode coding of promising each clock time transfer mode configuration；
Second submodule, for protecting the expense of clock time transmission operating mode coding insertion optical transfer network signal
It writes down characters section, the optical transfer network signal is sent to the receiving end.
Wherein, the sending module includes:
Third submodule, for Working mould will to be transmitted with the currently used matched clock time of clock time transfer mode
In formula coding insertion monitoring signal, and the monitoring signal and optical transfer network signal synthesis optical signal are sent to the reception
End.
Wherein, described device further include:
First processing module, for currently used clock time transfer mode to be sent to reception in the sending module
After end, before first receiving module receives the clock time transfer mode response of the receiving end feedback, described in reception
The clock time transfer mode that receiving end is sent verifies success message, confirmation message is sent to the receiving end, by the reception
End updates the clock time transfer mode of local current clock time node according to the confirmation message.
The embodiment of the present invention provides the device that clock time transfer mode is synchronous in a kind of optical transport network, is applied to receive
End, described device include:
Second receiving module, the clock time currently used with the transmitting terminal for receiving transmitting terminal transmission transmit mould
The matched clock time transmission operating mode coding of formula, transmits operating mode coding according to the clock time and obtains the transmission
Hold currently used clock time transfer mode；
Judgment module, for judging that current clock time is passed when supporting the clock time transfer mode received coding
Send the clock time transfer mode of mode and acquisition whether consistent；
Responder module is updated, the clock time transfer mode for working as current clock time transfer mode and acquisition is inconsistent
When, then the clock time transfer mode of current clock time node is updated according to the clock time transfer mode of acquisition, and more
To the transmitting terminal feedback clock time transfer mode response after new completion.
Wherein, second receiving module is further used for:
The optical transfer network signal for the carrying clock time transmission operating mode coding that the transmitting terminal is sent is received,
Described in clock time transmission operating mode code storage in the expense reserve bytes of the optical transfer network signal.
Wherein, second receiving module includes:
Receiving submodule, the light letter of the carrying clock time transmission operating mode coding for receiving transmitting terminal transmission
Number；
Submodule is decomposed, for the difference according to frequency, the optical signal is resolved into optical transfer network signal and monitoring is believed
Number, wherein the clock time transmission operating mode coding is carried in the monitoring signal；
Sending submodule, the clock time transmission operating mode coding for will carry in the monitoring signal are sent
To in the optical transfer network signal.
Wherein, described device further include:
Second processing module, for being updated currently in the update responder module according to the clock time transfer mode of acquisition
Before the clock time transfer mode of clock time node, when the clock time transfer mode of acquisition is available and with present clock
When the clock time transfer mode of intermediate node is inconsistent, verification success message is sent to the transmitting terminal, and receive the transmission
Hold the confirmation message returned.
The above-mentioned technical proposal of the embodiment of the present invention has the beneficial effect that:
By the way that the currently used clock time transfer mode of transmitting terminal is sent to receiving end, so that receiving end is according to reception
To clock time transfer mode adjust the clock time transfer mode locally used, solve transmitting terminal and receiving end when
The nonsynchronous problem of clock time transfer mode, on the basis of realizing that transmitting terminal is synchronous with receiving end clock time transfer mode,
The correct transmission for ensuring transmitting terminal and receiving end clock time signal improves the efficiency and stability of signal transmission.
Detailed description of the invention
Fig. 1 is the clock time transfer mode synchronization system schematic diagram of the embodiment of the present invention；
Fig. 2 is the method schematic diagram one that clock time transfer mode is synchronous in the optical transport network of the embodiment of the present invention；
Fig. 3 is the schematic diagram synchronous by optical transfer network expense realization clock time transfer mode of the embodiment of the present invention；
Fig. 4 is the schematic diagram synchronous by monitoring system realization clock time transfer mode of the embodiment of the present invention；
Fig. 5 is the clock time transfer mode synchronizing process schematic diagram one of the embodiment of the present invention；
Fig. 6 is the method schematic diagram two that clock time transfer mode is synchronous in the optical transport network of the embodiment of the present invention；
Fig. 7 is the clock time transfer mode synchronizing process schematic diagram two of the embodiment of the present invention；
Fig. 8 is the method flow schematic diagram that clock time transfer mode is synchronous in the optical transport network of the embodiment of the present invention；
Fig. 9 is the schematic device one that clock time transfer mode is synchronous in the optical transport network of the embodiment of the present invention；
Figure 10 is the schematic device two that clock time transfer mode is synchronous in the optical transport network of the embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention is inconsistent for transmitting terminal and the clock time transfer mode of receiving end in the prior art, leads to receiving end
The information of transmitting terminal transmission can not be compiled, so that the problem of clock time information transmission is interrupted, provides a kind of light transmission
The synchronous method and device of clock time transfer mode, may be implemented receiving end and transmitting terminal clock time transfer mode in network
Synchronization, it is ensured that the correct transmission of both ends clock time signal, improve signal transmission efficiency and stability.
As shown in Figure 1, being clock time of embodiment of the present invention transfer mode synchronization system concrete structure diagram:
Clock time transfer mode synchronous system architecture distributes sending end clock time processing system and receiving end clock time
Processing system.Wherein, transmitting terminal clock processing system includes: transmitting terminal control unit, alarm receiving unit, the transmission of transmitting terminal light
Net processing unit；Receiving end clock time processing system includes: receiving end optical transfer network processing unit, receiving end clock time biography
Send operating mode coding extraction unit, clock time transfer mode verification unit, clock time alarm detection unit and reception
Hold control unit.
Clock time transfer mode verification unit is connected to receiving end clock time in the clock time processing system of receiving end
Operating mode coding extraction unit and clock time alarm detection unit are transmitted, judges whether to support the clock time of transmitting terminal to pass
Send mode；Clock time alarm detection unit is connected to clock time transfer mode verification unit, and judging result is not supported
In the case of send corresponding alarm and give receiving end control unit；Receiving end control unit feeds back to receiving end light according to corresponding alarm and passes
Net processing unit is sent, receiving end optical transfer network processing unit is connect with transmitting terminal optical transfer network processing unit, and passes through transmitting terminal
Alarm is sent to alarm receiving unit by optical transfer network processing unit, and then is reported to transmitting terminal control unit, transmitting terminal control
Unit changes clock time transfer mode according to corresponding alarm, transmitting terminal optical transfer network processing unit is sent to, when for sending
Clock time transfer mode realizes final clock time pattern synchronization.
As shown in Fig. 2, the embodiment of the present invention provides a kind of method that clock time transfer mode is synchronous in optical transport network,
Applied to transmitting terminal, which comprises
Step S101, when clock time node is alerted there are clock time sync break, when by currently used clock
Between transfer mode be sent to receiving end, when updating local current according to the clock time transfer mode that receives by the receiving end
The clock time transfer mode of clock time node；
Step S102, the clock time transfer mode response for receiving the receiving end feedback, when completing with the receiving end
The synchronization of clock time transfer mode.
Specifically, whether optical transport network automatic regular polling detection current clock time node has clock time sync break announcement
Alert, when clock time sync break alerts upon this detection, currently used clock time transfer mode is sent to and connects by transmitting terminal
Receiving end, so that receiving end updates the clock time of local current clock time node according to the clock time transfer mode received
Transfer mode.Update of the transmitting terminal in the clock time transfer mode for waiting the local current clock time node of receiving end completion
Afterwards, the clock time transfer mode response of receiving end feedback is received, transmitting terminal and receiving end clock time transfer mode are completed
It is synchronous.
By the way that the currently used clock time transfer mode of transmitting terminal is sent to receiving end, so that receiving end is according to reception
To clock time transfer mode adjust the clock time transfer mode locally used, solve transmitting terminal and receiving end when
The nonsynchronous problem of clock time transfer mode, on the basis of realizing that transmitting terminal is synchronous with receiving end clock time transfer mode,
The correct transmission for ensuring transmitting terminal and receiving end clock time signal improves the efficiency and stability of signal transmission.
In the above embodiment of the present invention, currently used clock time transfer mode is sent to reception in step S101
End, comprising:
Step S1011, in clock time transmission operating mode list, inquiry is obtained passes with currently used clock time
The clock time of pattern match is sent to transmit operating mode coding, wherein recording in clock time transmission operating mode list has
Operating mode coding is transmitted for the clock time of each clock time transfer mode configuration；
Step S1012, by the expense reserved word of clock time transmission operating mode coding insertion optical transfer network signal
Section, is sent to the receiving end for the optical transfer network signal.
Specifically, each clock time transfer mode that statistics transmitting terminal is supported in advance, is every by preset coding mode
A kind of distribution of clock time transfer mode one unique clock time transmission operating mode coding, forms clock time and transmits work
It is available matched with each clock time transfer mode to transmit operating mode list according to clock time for operation mode list
Clock time transmits operating mode coding.
It should be noted that the service signal and non-traffic signal in optical transfer network are passed in the form of frame structure
It is defeated, and overhead byte abundant is defined, in order to not influence the normal transmission of business, the expense that clock time transfer mode uses
Expense can be retained using G.709 defined, carry out the transmission of clock time mode in port line.
It, will after acquisition is encoded with the matched clock time transmission operating mode of currently used clock time transfer mode
Clock time transmits the expense reserve bytes of operating mode coding insertion optical transfer network signal, and optical transfer network signal is sent to institute
State receiving end.
As shown in figure 3, when transmitting terminal clock time transmission processing unit selects a kind of clock under the control of the control unit
Between transfer mode, and by clock time transmission operating mode coding insertion one optical transfer network expense reserve bytes in, then by light
Transmission net signal sends receiving end clock time transmission processing unit to, and receiving end clock time processing unit receives light transmission
After net signal, clock time transmission operating mode coding is taken out from expense reserve bytes.
In the above embodiment of the present invention, currently used clock time transfer mode is sent to reception in step S101
End, comprising:
It will be monitored with the currently used matched clock time transmission operating mode coding insertion of clock time transfer mode
In signal, and the monitoring signal and optical transfer network signal synthesis optical signal are sent to the receiving end.
Specifically, inquiry obtains and currently used clock time in clock time transmission operating mode list
The matched clock time transmission operating mode coding of transfer mode, by clock time transmission operating mode coding insertion
In monitoring signal, since monitoring signal is transmitted in the form of frame structure, by clock time transmission operating mode coding insertion
When frame where monitoring signal, the specific position of frame can choose to position, for example, frame head or postamble.When will include clock
Between transmission operating mode coding monitoring signal and the optical transfer network signal synthesis to be sent optical signal and be sent to receiving end.Prison
Control signal plays the role of monitoring in transfer mode, and clock time transmission operating mode coding is inserted into monitoring signal, with
It will be compared in clock time transmission operating mode coding insertion optical transfer network signal, it is ensured that the transmission of optical transfer network signal is more
Business.
As shown in figure 4, transmitting terminal control unit selection clock time transfer mode is sent to the processing of transmitting terminal optical transfer network
Selected clock time transmission operating mode coding is sent to transmitting terminal monitoring processing unit by unit.The transmission of transmitting terminal light
Clock time transfer mode is sent net processing unit to transmitting terminal optical transfer network signal and monitoring signal processor based on the received
Corresponding optical transfer network signal；Transmitting terminal monitors processing unit and receives the clock time transmission work that transmitting terminal control unit is sent
After pattern-coding, by the frame where received clock time transmission operating mode coding insertion monitoring signal, when will include clock
Between transmission operating mode coding monitoring signal be sent to transmitting terminal optical transfer network signal and monitoring signal processor；Transmitting terminal light
Transmission net signal and monitoring signal processor, optical transfer network signal to be sent and monitoring signal synthesis optical signal are concurrent
It send.
In the above embodiment of the present invention, after currently used clock time transfer mode is sent to receiving end,
Before the clock time transfer mode response for receiving the receiving end feedback, the method also includes
The clock time transfer mode verification success message that the receiving end is sent is received, sends and confirms to the receiving end
Message updates the clock time transfer mode of local current clock time node by the receiving end according to the confirmation message.
Specifically, as shown in figure 5, also being needed after currently used clock time transfer mode is sent to receiving end
The clock time transfer mode verification success message of receiving end feedback is received, transmitting terminal confirms verification success message
Afterwards, will confirm that message is sent to receiving end so that receiving end according to confirmation message update local current clock time node when
Clock time transfer mode.
The embodiment of the present invention provides a kind of method that clock time transfer mode is synchronous in optical transport network, is applied to receive
End, as shown in Figure 6, which comprises
Step S201, it is matched to receive the clock time transfer mode currently used with the transmitting terminal that transmitting terminal is sent
Clock time transmits operating mode coding, and transmitting the operating mode coding acquisition transmitting terminal according to the clock time currently makes
Clock time transfer mode；
If step S202, supporting the clock time transfer mode coding received, current clock time transfer mode is judged
It is whether consistent with the clock time transfer mode of acquisition；
Step S203, if it is inconsistent, the clock time transfer mode according to acquisition updates current clock time node
Clock time transfer mode, and update complete after to the transmitting terminal feedback clock time transfer mode response.
Specifically, can be obtained corresponding after receiving the clock time transmission operating mode coding of transmitting terminal transmission
The currently used clock time transfer mode of transmitting terminal, judges whether receiving end supports the clock time received to transmit Working mould
Formula coding, if it does not, then prompt alarm information.When judging, the clock time transmission operating mode coding that will acquire is same
Any one coding in clock time transmission operating mode the encoding list locally saved is compared, when the clock of acquisition
Between transmission operating mode coding it is equal with any one coding in the clock time transmission operating mode the encoding list locally saved
It is not consistent, shows that the clock time received transmission operating mode coding is not supported in receiving end.Then receive what transmitting terminal was sent
The following clock time transmits operating mode coding.
In the above embodiment of the present invention, step S201 specifically:
The optical transfer network signal for the carrying clock time transmission operating mode coding that the transmitting terminal is sent is received,
Described in clock time transmission operating mode code storage in the expense reserve bytes of the optical transfer network signal.
Specifically, as shown in figure 3, clock time transmission processing unit in receiving end, which receives, carries clock time transmission Working mould
After the optical transfer network signal of formula coding, clock time is extracted in the expense reserve bytes of optical transfer network signal and transmits operating mode
Coding, corresponding clock time transfer mode can be obtained by transmitting operating mode coding according to clock time.
In the above embodiment of the present invention, step S201 is specifically included:
Step S2011, the optical signal for the carrying clock time transmission operating mode coding that transmitting terminal is sent is received；
Step S2012, according to the difference of frequency, the optical signal is resolved into optical transfer network signal and monitoring signal,
In, the clock time transmission operating mode coding is carried in the monitoring signal；
Step S2013, the clock time carried in the monitoring signal transmission operating mode coding is sent to institute
It states in optical transfer network signal.
Specifically, the optical signal for carrying clock time transmission operating mode coding is received, and according to the difference of frequency, by light
Signal decomposition is at optical transfer network signal and monitoring signal, and wherein optical transfer network signal is used for the transmission of business, takes in monitoring signal
With clock time transmission operating mode coding, after receiving monitoring signal, by clock time transmission operating mode coding hair
It send to optical transfer network signal, guarantees that optical transfer network signal during by transmitting terminal to receiving end, can transmit more industry
Business.
As shown in figure 4, receiving end optical transfer network signal and monitoring signal processor are by received optical signal according to frequency
Difference resolves into optical transfer network signal and monitoring signal, and it is single that optical transfer network signal is sent to the processing of receiving end optical transfer network
Monitoring signal is sent to receiving end monitoring processing unit by member；Receiving end optical transfer network processing unit receives optical transfer network letter
Number, and operating mode code adjustment clock time transfer mode is transmitted according to the clock time that receiving end control unit is sent；It connects
Receiving end monitors processing unit, after receiving monitoring signal, transmits operating mode according to clock time and encodes the position in monitoring signal
It sets, the clock time transmission operating mode coding extracted in monitoring signal is sent to receiving end control unit；Receiving end control is single
Member receives the clock time transmission operating mode coding that receiving end monitoring processing unit is sent, the clock time transmission that will acquire
Operating mode coding is sent to receiving end optical transfer network processing unit.Receiving end control unit monitors processing unit to receiving end
It sends a warning message, receiving end monitors processing unit, and warning information insertion monitoring signal is believed the monitoring comprising warning information
Number transmitting terminal is sent to by receiving end optical transfer network signal and monitoring signal processor.
In the above embodiment of the present invention, the clock time transfer mode according to acquisition updates current clock time section
Before the clock time transfer mode of point, the method also includes:
When the clock time transfer mode of acquisition is available and with the clock time transfer mode of current clock time node not
When consistent, verification success message is sent to the transmitting terminal, and receive the confirmation message that the transmitting terminal returns.
Specifically, when the clock time transfer mode currently used with transmitting terminal for receiving transmitting terminal transmission is matched
After clock time transmits operating mode coding, corresponding clock time biography can be obtained by transmitting operating mode coding according to clock time
Send mode.Judge whether receiving end supports clock time transmission operating mode coding, when receiving end supports clock time to transmit work
When operation mode encodes, show that clock time transmission operating mode is available.Need to continue to judge current clock time transfer mode with
Whether the clock time transfer mode of acquisition is consistent, when judging, by received clock time transmission operating mode coding with this
Clock time transmission operating mode the encoding list that ground saves compares, and determination is consistent with one of them, with currently used clock
Time transmission operating mode coding is compared, and both determines different, is shown current clock time transfer mode and is received
Clock time transfer mode is inconsistent.
In the case, as shown in figure 5, sending verification success message to transmitting terminal, and the confirmation of transmitting terminal return is received
Message.According to confirmation success message, the clock of current clock time node is updated according to the clock time transfer mode received
Time transfer mode, this mode safety and stability are relatively good.
It should be noted that as shown in fig. 7, between transmitting terminal and receiving end in clock time transfer mode synchronizing process,
Receiving end is after judging that clock time transfer mode is available, and current clock time transfer mode and the clock time of acquisition transmit
When mode is inconsistent, without sending verification success message, present clock can be updated according to the clock time transfer mode of acquisition
The clock time transfer mode of timing node, this mode execution efficiency are relatively high.
As shown in figure 8, being overall flow schematic diagram of the embodiment of the present invention:
Step S301, transmitting terminal clock time transfer mode is configured；
Step S302, judge whether that synchronizing clock time occur interrupts alarm, executes step S303 when present；
Step S303, clock time operating mode coding is read in receiving end, obtains corresponding clock time transfer mode；
Step S304, judge whether receiving end supports clock time transmission operating mode coding, support to then follow the steps
S305 does not support to then follow the steps S307；
Step S305, judge whether the clock time transfer mode of current clock time transfer mode and acquisition is consistent, no
S306 unanimously is thened follow the steps, unanimously thens follow the steps S308；
Step S306, it is transmitted according to the clock time that the clock time transfer mode of acquisition updates current clock time node
Mode；The judgement that following clock time synchronization interrupts alarm is carried out after completing step S306；
Step S307, prompt alarm message reads following clock time service pattern-coding after the completion；
Step S308, it is run by original clock time transfer mode；
Step S309, it reports synchronizing clock time to interrupt alarm, carries out the judgement that following clock time synchronization interrupts alarm.
The embodiment of the present invention provides the device that clock time transfer mode is synchronous in a kind of optical transport network, is applied to send
End, as shown in figure 9, described device includes:
Sending module 401, for when clock time node there are clock time sync break alert when, will be currently used
Clock time transfer mode is sent to receiving end, is updated locally by the receiving end according to the clock time transfer mode received
The clock time transfer mode of current clock time node；
First receiving module 402, for receiving the clock time transfer mode response of the receiving end feedback, completion and institute
State the synchronization of receiving end clock time transfer mode.
In the above embodiment of the present invention, the sending module 401 includes:
First submodule 4011, in clock time transmission operating mode list inquiry obtain with it is currently used when
The matched clock time transmission operating mode coding of clock time transfer mode, wherein the clock time transmits operating mode list
The middle clock time transmission operating mode coding for recording promising each clock time transfer mode configuration；
Second submodule 4012, for opening clock time transmission operating mode coding insertion optical transfer network signal
Reserve bytes are sold, the optical transfer network signal is sent to the receiving end.
In the above embodiment of the present invention, the sending module 401 includes:
Third submodule 4013, for work will to be transmitted with the currently used matched clock time of clock time transfer mode
In operation mode coding insertion monitoring signal, and the monitoring signal and optical transfer network signal synthesis optical signal are sent to described connect
Receiving end.
In the above embodiment of the present invention, described device further include:
First processing module 403, for sending currently used clock time transfer mode in the sending module 401
To receiving end, before first receiving module 402 receives the clock time transfer mode response of the receiving end feedback,
The clock time transfer mode verification success message that the receiving end is sent is received, sends confirmation message to the receiving end, by
The receiving end updates the clock time transfer mode of local current clock time node according to the confirmation message.
The embodiment of the present invention provides the device that clock time transfer mode is synchronous in a kind of optical transport network, is applied to receive
End, as shown in Figure 10, described device includes:
Second receiving module 501, the clock time currently used with the transmitting terminal for receiving transmitting terminal transmission pass
It send the clock time of pattern match to transmit operating mode coding, operating mode is transmitted according to the clock time and is encoded described in acquisition
The currently used clock time transfer mode of transmitting terminal；
Judgment module 502, for judging current clock time when supporting the clock time transfer mode received coding
Whether transfer mode and the clock time transfer mode of acquisition are consistent；
Responder module 503 is updated, for working as the clock time transfer mode of current clock time transfer mode and acquisition not
When consistent, then the clock time transfer mode of current clock time node is updated according to the clock time transfer mode of acquisition, and
To the transmitting terminal feedback clock time transfer mode response after updating completion.
In the above embodiment of the present invention, second receiving module 501 is further used for:
The optical transfer network signal for the carrying clock time transmission operating mode coding that the transmitting terminal is sent is received,
Described in clock time transmission operating mode code storage in the expense reserve bytes of the optical transfer network signal.
Second receiving module 501 includes:
Receiving submodule 5011, what the carrying clock time transmission operating mode for receiving transmitting terminal transmission encoded
Optical signal；
It decomposes submodule 5012 and the optical signal is resolved into optical transfer network signal and prison for the difference according to frequency
Control signal, wherein the clock time transmission operating mode coding is carried in the monitoring signal；
Sending submodule 5013, the clock time transmission operating mode coding for will be carried in the monitoring signal
It is sent in the optical transfer network signal.
In the above embodiment of the present invention, described device further include:
Second processing module 504, in the update responder module 503 according to the clock time transfer mode received
Before the clock time transfer mode for updating current clock time node, when the clock time transfer mode of acquisition is available and with work as
When the clock time transfer mode of preceding clock time node is inconsistent, verification success message is sent to the transmitting terminal, and receive
The confirmation message that the transmitting terminal returns.
The synchronous method of clock time transfer mode in a kind of optical transport network of the embodiment of the present invention, by working as transmitting terminal
The preceding clock time transfer mode used is sent to receiving end so that receiving end according to the clock time transfer mode received come
The clock time transfer mode locally used is adjusted, the clock time transfer mode for solving transmitting terminal and receiving end is nonsynchronous
Problem, on the basis of realizing that transmitting terminal is synchronous with receiving end clock time transfer mode, it is ensured that transmitting terminal and receiving end clock
The correct transmission of time signal improves the efficiency and stability of signal transmission.
It should be noted that the synchronous device of clock time transfer mode in optical transport network provided in an embodiment of the present invention
It is the device using the above method, then all embodiments of the above method are suitable for the device, and can reach identical or phase
As beneficial effect.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (16)
1. a kind of synchronous method of clock time transfer mode in optical transport network, is applied to transmitting terminal, which is characterized in that described
Method includes:
When clock time node is alerted there are clock time sync break, currently used clock time transfer mode is sent
To receiving end, by the receiving end according to the clock time transfer mode received update local current clock time node when
Clock time transfer mode, wherein clock time transfer mode include clock time transmission type, clock time packaged type and
Clock time Transfer pipe；
The clock time transfer mode response for receiving the receiving end feedback, is completed and the receiving end clock time transfer mode
Synchronization.
2. the synchronous method of clock time transfer mode in optical transport network as described in claim 1, which is characterized in that described
Currently used clock time transfer mode is sent to receiving end, comprising:
When inquiry obtains matched with currently used clock time transfer mode in clock time transmission operating mode list
Clock time transmits operating mode coding, wherein when recording each promising clock in clock time transmission operating mode list
Between transfer mode configure clock time transmission operating mode coding；
By the expense reserve bytes of clock time transmission operating mode coding insertion optical transfer network signal, the light is transmitted
Net signal is sent to the receiving end.
3. the synchronous method of clock time transfer mode in optical transport network as described in claim 1, which is characterized in that described
Currently used clock time transfer mode is sent to receiving end, comprising:
Monitoring signal will be inserted into the currently used matched clock time transmission operating mode coding of clock time transfer mode
In, and the monitoring signal and optical transfer network signal synthesis optical signal are sent to the receiving end.
4. the synchronous method of clock time transfer mode in optical transport network as described in claim 1, which is characterized in that described
After currently used clock time transfer mode is sent to receiving end, the clock time transmission of the receiving end feedback is received
Before mode response, the method also includes:
The clock time transfer mode verification success message that the receiving end is sent is received, confirmation is sent to the receiving end and disappears
Breath updates the clock time transfer mode of local current clock time node by the receiving end according to the confirmation message.
5. a kind of synchronous method of clock time transfer mode in optical transport network, is applied to receiving end, which is characterized in that described
Method includes:
Receive the matched clock time transmission of the clock time transfer mode currently used with the transmitting terminal that transmitting terminal is sent
Operating mode coding transmits operating mode coding according to the clock time and obtains the currently used clock time of the transmitting terminal
Transfer mode, wherein clock time transfer mode includes clock time transmission type, when clock time packaged type and clock
Between Transfer pipe；
If the clock time transfer mode received coding is supported, when judging the clock of current clock time transfer mode and acquisition
Between transfer mode it is whether consistent；
If it is inconsistent, being transmitted according to the clock time that the clock time transfer mode of acquisition updates current clock time node
Mode, and to the transmitting terminal feedback clock time transfer mode response after updating completion.
6. the synchronous method of clock time transfer mode in optical transport network as claimed in claim 5, which is characterized in that described
It receives the matched clock time of the clock time transfer mode currently used with the transmitting terminal that transmitting terminal is sent and transmits work
Pattern-coding, specifically:
The optical transfer network signal for the carrying clock time transmission operating mode coding that the transmitting terminal is sent is received, wherein institute
Clock time transmission operating mode code storage is stated in the expense reserve bytes of the optical transfer network signal.
7. the synchronous method of clock time transfer mode in optical transport network as claimed in claim 5, which is characterized in that described
It receives the matched clock time of the clock time transfer mode currently used with the transmitting terminal that transmitting terminal is sent and transmits work
Pattern-coding specifically includes:
Receive the optical signal for the carrying clock time transmission operating mode coding that transmitting terminal is sent；
According to the difference of frequency, the optical signal is resolved into optical transfer network signal and monitoring signal, wherein the monitoring signal
In carry clock time transmission operating mode coding；
The clock time carried in the monitoring signal transmission operating mode coding is sent to the optical transfer network signal
In.
8. the synchronous method of clock time transfer mode in optical transport network as claimed in claim 5, which is characterized in that described
Before the clock time transfer mode for updating current clock time node according to the clock time transfer mode of acquisition, the method
Further include:
When the clock time transfer mode of acquisition is available and with the clock time transfer mode of current clock time node it is inconsistent
When, verification success message is sent to the transmitting terminal, and receive the confirmation message that the transmitting terminal returns.
9. the synchronous device of clock time transfer mode in a kind of optical transport network, is applied to transmitting terminal, which is characterized in that described
Device includes:
Sending module, for when clock time node there are clock time sync break alert when, when by currently used clock
Between transfer mode be sent to receiving end, when updating local current according to the clock time transfer mode that receives by the receiving end
The clock time transfer mode of clock time node, wherein clock time transfer mode includes clock time transmission type, when clock
Between packaged type and clock time Transfer pipe；
First receiving module is completed and the reception for receiving the clock time transfer mode response of the receiving end feedback
Hold the synchronization of clock time transfer mode.
10. the synchronous device of clock time transfer mode in optical transport network as claimed in claim 9, which is characterized in that institute
Stating sending module includes:
First submodule, for inquiry to obtain in clock time transmission operating mode list and currently used clock time passes
The clock time of pattern match is sent to transmit operating mode coding, wherein recording in clock time transmission operating mode list has
Operating mode coding is transmitted for the clock time of each clock time transfer mode configuration；
Second submodule, for clock time transmission operating mode coding to be inserted into the expense reserved word of optical transfer network signal
Section, is sent to the receiving end for the optical transfer network signal.
11. the synchronous device of clock time transfer mode in optical transport network as claimed in claim 9, which is characterized in that institute
Stating sending module includes:
Third submodule, for will be compiled with the currently used matched clock time transmission operating mode of clock time transfer mode
In code insertion monitoring signal, and the monitoring signal and optical transfer network signal synthesis optical signal are sent to the receiving end.
12. the synchronous device of clock time transfer mode in optical transport network as claimed in claim 9, which is characterized in that institute
State device further include:
First processing module, for the sending module by currently used clock time transfer mode be sent to receiving end it
Afterwards, before first receiving module receives the clock time transfer mode response that the receiving end is fed back, the reception is received
The clock time transfer mode that end is sent verifies success message, confirmation message is sent to the receiving end, by the receiving end root
According to the confirmation message, the clock time transfer mode of local current clock time node is updated.
13. the synchronous device of clock time transfer mode in a kind of optical transport network, is applied to receiving end, which is characterized in that institute
Stating device includes:
Second receiving module, for receiving the clock time transfer mode currently used with the transmitting terminal of transmitting terminal transmission
The clock time transmission operating mode coding matched transmits the operating mode coding acquisition transmitting terminal according to the clock time and works as
The preceding clock time transfer mode used, wherein clock time transfer mode includes clock time transmission type, clock time envelope
Dress mode and clock time Transfer pipe；
Judgment module, for judging that current clock time transmits mould when supporting the clock time transfer mode received coding
Whether formula and the clock time transfer mode of acquisition are consistent；
Responder module is updated, for when the clock time transfer mode of current clock time transfer mode and acquisition is inconsistent,
The clock time transfer mode of current clock time node is then updated according to the clock time transfer mode of acquisition, and is being updated
At the backward transmitting terminal feedback clock time transfer mode response.
14. the synchronous device of clock time transfer mode in optical transport network as claimed in claim 13, which is characterized in that institute
The second receiving module is stated to be further used for:
The optical transfer network signal for the carrying clock time transmission operating mode coding that the transmitting terminal is sent is received, wherein institute
Clock time transmission operating mode code storage is stated in the expense reserve bytes of the optical transfer network signal.
15. the synchronous device of clock time transfer mode in optical transport network as claimed in claim 13, which is characterized in that institute
Stating the second receiving module includes:
Receiving submodule, the optical signal of the carrying clock time transmission operating mode coding for receiving transmitting terminal transmission；
It decomposes submodule and the optical signal is resolved into optical transfer network signal and monitoring signal for the difference according to frequency,
In, the clock time transmission operating mode coding is carried in the monitoring signal；
Sending submodule, for the clock time carried in the monitoring signal transmission operating mode coding to be sent to institute
It states in optical transfer network signal.
16. the synchronous device of clock time transfer mode in optical transport network as claimed in claim 13, which is characterized in that institute
State device further include:
Second processing module, for updating present clock according to the clock time transfer mode of acquisition in the update responder module
Before the clock time transfer mode of timing node, when the clock time transfer mode of acquisition is available and with current clock time section
When the clock time transfer mode of point is inconsistent, verification success message is sent to the transmitting terminal, and receive the transmitting terminal and return
The confirmation message returned.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510369545.4A CN106330372B (en) | 2015-06-29 | 2015-06-29 | The synchronous method and device of clock time transfer mode in a kind of optical transport network |
| PCT/CN2016/083518 WO2017000713A1 (en) | 2015-06-29 | 2016-05-26 | Method and device for synchronizing clock time transport modes in optical transport network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510369545.4A CN106330372B (en) | 2015-06-29 | 2015-06-29 | The synchronous method and device of clock time transfer mode in a kind of optical transport network |
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| Publication Number | Publication Date |
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| CN106330372A CN106330372A (en) | 2017-01-11 |
| CN106330372B true CN106330372B (en) | 2019-02-22 |
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| CN201510369545.4A Active CN106330372B (en) | 2015-06-29 | 2015-06-29 | The synchronous method and device of clock time transfer mode in a kind of optical transport network |
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| WO (1) | WO2017000713A1 (en) |
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| CN111817819B (en) * | 2019-04-12 | 2023-06-02 | 中兴通讯股份有限公司 | FEC mode synchronization method, system, master node and slave node |
| CN111698052B (en) * | 2020-06-12 | 2023-04-07 | 四川革什扎水电开发有限责任公司 | Homologous time synchronization system crossing power safety zone |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1946017A (en) * | 2006-10-09 | 2007-04-11 | 华为技术有限公司 | Method and system for clock synchronizing of transmission end and receiving end in package switching network |
| CN103108388A (en) * | 2011-11-14 | 2013-05-15 | 无锡物联网产业研究院 | Method, device and system of wireless sensor network clock synchronization |
| CN103684736A (en) * | 2013-11-21 | 2014-03-26 | 国网上海市电力公司 | Clock synchronization method for high-speed communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100687723B1 (en) * | 2004-12-17 | 2007-02-27 | 한국전자통신연구원 | Apparatus for testing the performance of optical transceiver |
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2015
- 2015-06-29 CN CN201510369545.4A patent/CN106330372B/en active Active
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- 2016-05-26 WO PCT/CN2016/083518 patent/WO2017000713A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1946017A (en) * | 2006-10-09 | 2007-04-11 | 华为技术有限公司 | Method and system for clock synchronizing of transmission end and receiving end in package switching network |
| CN103108388A (en) * | 2011-11-14 | 2013-05-15 | 无锡物联网产业研究院 | Method, device and system of wireless sensor network clock synchronization |
| CN103684736A (en) * | 2013-11-21 | 2014-03-26 | 国网上海市电力公司 | Clock synchronization method for high-speed communication |
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| CN106330372A (en) | 2017-01-11 |
| WO2017000713A1 (en) | 2017-01-05 |
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