CN101902275A - Method and device for transmitting/receiving monitoring information and transfer system - Google Patents
Method and device for transmitting/receiving monitoring information and transfer system Download PDFInfo
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- CN101902275A CN101902275A CN2010102604597A CN201010260459A CN101902275A CN 101902275 A CN101902275 A CN 101902275A CN 2010102604597 A CN2010102604597 A CN 2010102604597A CN 201010260459 A CN201010260459 A CN 201010260459A CN 101902275 A CN101902275 A CN 101902275A
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Abstract
The invention discloses a method and a device for transmitting/receiving monitoring information and a transfer system. The method for transmitting the monitoring information comprises the following steps: a network element maps a received low-order optical path data unit (ODU) signal according to the GMP to acquire a specified high-order ODU signal, and the high-order ODU signal comprises idle bytes and an overhead part; the network element fills GCC bytes in the idle bytes, wherein the content in the GCC bytes is monitoring information to be transmitted; the network element fills Cn in the overhead part; and the network element maps the high-order ODU signal into an OTU signal and transmits the OTU signal. The invention can transfer the monitoring information under the premise of not occupying overhead, thereby solving the problem of large limitation in the transfer of the monitoring information and increasing the monitoring bandwidth. The invention has stronger practical value.
Description
Technical field
The present invention relates to the optical-fiber network communication technique field, in particular to a kind of transmission/method of reseptance, device and transmission system of monitor message.
Background technology
At WDM (Wavelength Division Multiplexing, wavelength division multiplexing) in the system, in order between different network elements, to transmit monitor message (comprising detection information and control and management information etc.), can use 3 GCC (General communication Channel, all purpose communication passage) byte of fixing in GMP (the general mapping rules) mapping or the passage of opening up a wavelength specially to transmit monitor message.Referring to Fig. 1, be the GMP mapping method schematic diagram in the correlation technique, after network element receives user data, user data is carried out the GMP mapping obtain OTUk (completely standardized Optical Channel Transport Unit-k, complete standardization light path delivery unit k), send OTUk.And this GCC mode be owing to once only can transmit the supervision information of 3 bytes, and bandwidth is too little, so be not extensive use of.Present WDM equipment generally uses wavelength to transmit monitor message as the Optical Supervisory Channel (OSC) of 1510nm.
The shortcoming of OSC is at first to have taken the bandwidth of a wavelength of system, and because the light of 1510nm wavelength is not at EDFA (Erbium Doped Fiber Amplifier, erbium-doped fiber amplifier) within the amplification range, must after EDFA, be transferred on the light path, therefore can influence the transmission range of entire WDM system.
By in the above-mentioned correlation technique as can be known, transmit monitor message between the network element and have significant limitation, be inconvenient to use.
Summary of the invention
Main purpose of the present invention is to provide a kind of transmission/method of reseptance, device and transmission system of monitor message, transmits the big problem of limitation to solve above-mentioned monitor message.
According to an aspect of the present invention, a kind of sending method of monitor message is provided, this method comprises: network element shines upon processing to the low rank optical channel data unit ODU signal that receives according to general mapping rules GMP, be mapped as the high-order ODU signal of appointment, wherein, high-order ODU signal comprises idle bytes and overhead part; Network element is filled all purpose communication passage GCC byte in idle bytes, the content of GCC byte is a monitor message to be sent; Network element is filled in overhead part with the customer data amount Cn that current period sends; Network element is a light path delivery unit OTU signal with this high-order ODU signal map, sends this OTU signal.
According to a further aspect in the invention, a kind of method of reseptance of monitor message is provided, this method comprises: network element is separated the light path delivery unit OTU signal that receives and is mapped as high rank optical channel data unit ODU signal, reads the customer data amount Cn of current period transmission from the overhead part of this high-order ODU signal; Network element extracts monitor message according to the filling position of Cn computer general communication port GCC byte from filling position; Network element is separated mapping according to general mapping rules GMP to high-order ODU signal and is handled.
According to another aspect of the invention, a kind of dispensing device of monitor message is provided, this device comprises: the mapping processing unit, be used for the low rank optical channel data unit ODU signal that receives is shone upon processing according to general mapping rules GMP, be mapped as the high-order ODU signal of appointment, wherein, high-order ODU signal comprises idle bytes and overhead part; The overhead processing unit is used for filling all purpose communication passage GCC byte in idle bytes, and the content of GCC byte is a monitor message to be sent; The customer data amount Cn that current period is sent is filled in overhead part; Transmitting element, being used for high-order ODU signal map is light path delivery unit OTU signal, sends this OTU signal.
In accordance with a further aspect of the present invention, a kind of receiving system of monitor message is provided, this device comprises: reading unit, be used for the light path delivery unit OTU signal that receives separated and be mapped as high rank optical channel data unit ODU signal, read the customer data amount Cn that current period sends from the overhead part of high-order ODU signal; The monitor message extraction unit is used for the filling position of the Cn computer general communication port GCC byte that reads according to reading unit, extracts monitor message from filling position; Separate the mapping processing unit, be used for this high-order ODU signal being separated mapping and handle according to general mapping rules GMP.
According to another aspect of the invention, provide a kind of transmission system of monitor message, this system comprises the dispensing device of above-mentioned monitor message, also comprises the receiving system of monitor message.
By the present invention, adopt and in the idle bytes of high-order ODU signal, fill monitor message, can under the prerequisite that does not take expense, transmit monitor message, solve monitor message and transmitted the big problem of limitation, improved the monitoring bandwidth, have stronger practical value.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the GMP mapping method schematic diagram according to correlation technique;
Fig. 2 is the flow chart according to the sending method of a kind of monitor message of the embodiment of the invention;
Fig. 3 is the schematic diagram according to the monitor message form of the embodiment of the invention;
Fig. 4 is the GMP mapping method schematic diagram according to the embodiment of the invention;
Fig. 5 is the flow chart according to the method for reseptance of a kind of monitor message of the embodiment of the invention;
Fig. 6 is the structural representation according to the GMP mapping device of the embodiment of the invention 1;
Fig. 7 is the flow chart according to the mapping process of the embodiment of the invention 1;
Fig. 8 is the flow chart of separating mapping process according to the embodiment of the invention 1;
Fig. 9 is the structural representation according to the GMP mapping device of the embodiment of the invention 2;
Figure 10 is the structural representation according to the GMP mapping device of the embodiment of the invention 3;
Figure 11 is the structured flowchart according to the dispensing device of the monitor message of the embodiment of the invention 4;
Figure 12 is the structured flowchart according to the receiving system of the monitor message of the embodiment of the invention 5;
Figure 13 is the structured flowchart according to the transmission system of the monitor message of the embodiment of the invention 6.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The embodiment of the invention is on the basis of GMP mapping, utilizes the intrinsic useful GCC information of idle bytes transmission in the high-order ODU signal after the mapping, i.e. monitor message receives the network element of high-order ODU signal, handles separating mapping accordingly.Based on this, the embodiment of the invention provides a kind of transmission/method of reseptance, device and transmission system of monitor message.
Fig. 2 shows the flow chart according to the sending method of a kind of monitor message of the embodiment of the invention, and this method may further comprise the steps:
Step S202: network element shines upon processing to the low order ODU signal that receives according to GMP, is mapped as the high-order ODU signal of appointment, and wherein, high-order ODU signal comprises idle bytes and overhead part;
Present embodiment can evenly be mapped in low order ODU signal in the container of high-order ODU signal when low order ODU signal map is high-order ODU signal as far as possible.
Step S204: this network element is filled the GCC byte in above-mentioned idle bytes, and wherein, the content of GCC byte is a monitor message to be sent;
Because the low order signal can't just be filled when being loaded into higher order signal, always can stay certain clearance spaces, promptly above-mentioned idle bytes these clearance spaces can be filled to 0 in the correlation technique, and present embodiment is filled to the GCC byte with these clearance spaces.
Preferably, when the GCC byte is not filled up idle bytes, in remaining idle bytes, dose designated character.
This network element can also comprise before filling the GCC byte: this network element judges whether current period has monitor message to be sent, if fill the GCC byte in idle bytes; If not, in idle bytes, fill designated character.Simpler in order to realize, above-mentioned designated character can be 0.
Fig. 3 shows the schematic diagram according to the monitor message form of the embodiment of the invention, and this monitor message comprises: monitor message length (accounting for 1 byte), monitor message and CRC check byte (accounting for 2 bytes).
Step S206: this network element is filled in above-mentioned overhead part with the customer data amount Cn that current period sends;
Wherein, Cn represents weekly the customer data amount that the phase need transmit, can determine that according to the type of the type of low order ODU signal and high-order ODU signal can also determine Pm according to the type of low order ODU signal and the type of high-order ODU signal, Pm represents the maximum amount of data that standard OTN container can transmit.The type of ODU signal refers to information such as the clock of ODU signal or speed; Wherein, can comprising of low order ODU signal: ODU0 ODU1 ODU2 ODU3 ODU4 ODU2e ODU3e2, can comprising of high-order ODU signal: ODU1 ODU2 ODU3 ODU4 ODU3e2, low order ODU signal and high-order ODU signal are comparatively speaking, low order ODU signal is shone upon processing according to GMP, and the high-order ODU signal that is mapped as appointment can be realized according to correlation technique.
The concrete of Cn and Pm determines that method can realize with reference to the related protocol regulation, no longer describes in detail here.
Step S208: this network element is the OTU signal with high-order ODU signal map, sends this OTU signal.
Said network element uses the GMP mapping method will hang down rank optical channel data unit ODU signal map in the high-order ODU signal of appointment the time, can produce certain idle bytes; This network element is filled the GCC byte in idle bytes, the content of GCC byte is a monitor message to be sent.This network element adopts the sending method of above-mentioned monitor message, can improve OTN universal monitor bandwidth chahnel, referring to the GMP mapping method schematic diagram of present embodiment shown in Figure 4, fills monitor message in carrying out the GMP mapping process.Shining upon processing according to GMP and can realize with reference to the mode in the correlation technique among the step S202 no longer described in detail here.
Fig. 5 shows the flow chart according to the method for reseptance of a kind of monitor message of the embodiment of the invention, and this method may further comprise the steps:
Step S502: network element is separated the OTU signal that receives and is mapped as high-order ODU signal, reads the customer data amount Cn of current period transmission from the overhead part of this high-order ODU signal;
Step S504: this network element extracts monitor message according to the filling position that above-mentioned Cn calculates the GCC byte from this filling position;
Preferably, this network element also comprised extract monitor message from above-mentioned filling position before: this network element judges whether the content of filling in the filling position is designated character (for example, designated character 0), if, execution in step S506; If not, from filling position, extract monitor message.
Step S506: this network element is separated mapping according to GMP to high-order ODU signal and is handled.
Present embodiment is by filling monitor message in the idle bytes of high-order ODU signal, and, after the network element that receives high-order ODU signal is determined filling position, just can extract monitor message, can under the prerequisite that does not take expense, transmit monitor message, solve monitor message and transmitted the big problem of limitation, improved the monitoring bandwidth, had stronger practical value.
Embodiment 1
The structural representation of GMP mapping device as shown in Figure 6, this GMP mapping device comprises: GMP mapping processing unit, main control unit and overhead processing unit are formed.
Wherein, GMP mapping processing unit is selected appropriate C n according to low order ODU signal and high-order ODU signal clock, and by certain calculation method Cn low order ODU signal evenly is loaded among the OTN that capacity is Pm, and realizes reverse process in separating mapping process;
Main control unit is used to control the mapping of coordinating above-mentioned GMP processing unit processes and conciliates mapping process, and the Cn value is passed to the overhead processing unit, and whether control overhead processing unit needs to fill the GCC byte;
The overhead processing unit is filled according to the instruction of main control unit in mapping process or is handled fixed byte or GCC byte, and with Cn as the expense transmission.
Present embodiment is the transmission/method of reseptance of example explanation monitor message with GMP mapping device shown in Figure 6, and referring to Fig. 7, mapping process may further comprise the steps:
Step S702:GMP mapping processing unit is selected Cn according to low order ODU signal clock and high-order ODU signal clock, and Cn is informed main control unit;
Step S704: main control unit is coordinated GMP mapping processing unit according to Cn, and low order ODU signal is loaded in the high-order ODU signal container;
Step S706: high-order ODU signal enters the overhead processing unit, and whether main control unit sends order notification overhead processing unit needs to fill the GCC byte; If, execution in step S708; If not, execution in step S710;
Step S708: fill the GCC byte in idle bytes (also claiming fixedly byte of padding), fill out discontented part and fill out designated character, present embodiment fills out 0;
Step S710: at all fixing designated character of filling of idle bytes, the designated character of present embodiment is 0;
Step S712: the overhead processing unit is inserted overhead part with Cn as expense;
Step S714:GMP mapping disposes, and is the OTU signal with high-order ODU signal map, sends this OTU signal.
Referring to Fig. 8, after network element receives the OTU signal, the OTU signal that receives separated be mapped as high-order ODU signal, carry out the following mapping process of separating then:
Step S802: the overhead processing unit reads Cn after receiving high-order ODU signal, and the notice main control unit;
Step S804: main control unit calculates fixedly byte of padding position, the i.e. position at idle bytes place according to Cn;
Step S806: whether first byte of judging the said fixing byte of padding is 0, if, execution in step S810; If not, execution in step S808;
Step S808: main control unit is read the content in the fixing byte of padding, carries out the parsing of monitor message;
Step S810: high-order ODU signal enters GMP mapping processing unit and separates the mapping processing.
Present embodiment can utilize the fixedly useful GCC byte of byte of padding transmission under the prerequisite that does not take expense, improved the universal monitor bandwidth, has bigger practical value.
Embodiment 2
Present embodiment provides a kind of transmission/method of reseptance of monitor message, this method based on GMP fixedly byte of padding finish, present embodiment is loaded into 32 ODU0 in the ODU3 container and transmits, set out on a journey and the process on following road in realize that by the GMP mode ODU0 conciliates mapping to the mapping of the time slot frame ODU3.ts of ODU3.The process of transmitting of monitor message is equivalent to the GMP mapping process, and the receiving course of monitor message is equivalent to GMP and separates mapping process.As shown in Figure 9, mapping comprises following process:
The first step, GMP mapping processing unit is selected Cn=15105 according to low order signal type ODU0 and higher order signal type ODU3;
In second step, it is to fill or be placed with to use data that main control unit calculates each byte according to Cn=15105 and Pm=15232, can adopt following computational methods:
If j (j=1,2 ...., Pm) payload is filled according to following formula, and the condition that can satisfy even filling is as follows:
If (j*Cn) mod Pm＜Cn then fills out data at the j place; If (j*Cn) mod Pm＞=Cn is then in filling 0 of j place or GCC byte;
Wherein, Pm determines according to low order signal type ODU1 and higher order signal type ODU3e2.
In the 3rd step, main control unit is coordinated the mapping processing unit according to above-mentioned condition, and ODU0 is loaded among the ODU3;
The 4th step entered the overhead processing unit, and whether main control unit sends order notification overhead processing unit needs to fill the GCC byte;
The 5th step, if, then fill the GCC byte, fill out discontented part and fill out 0; If not, then all fixedly fill out 0;
In the 6th step, the overhead processing unit is inserted overhead part with Cn as expense;
In the 7th step, the GMP mapping disposes.
It is as follows that GMP separates mapping process:
The first step, the overhead processing unit reads Cn after receiving the ODU3 signal, and the notice main control unit;
In second step, main control unit calculates fixedly byte of padding position according to Cn, and reads first byte of byte of padding;
In the 3rd step,, then directly entered for the 5th step if fixedly first byte of byte of padding is 0;
The 4th step, if fixedly first byte of byte of padding is not 0, then read fixedly byte of padding, main control unit carries out GCC to be handled;
In the 5th step, the ODU3 signal enters GMP mapping processing unit, separates mapping and handles.
According to top processing method, the maximum portability GCC of an OTU frame byte number=Pm-Cn=127, and original OTN frame GCC total bytes is 6, is equivalent to the bandwidth chahnel of former universal monitor to be enlarged 21 times at most.
Embodiment 3
Present embodiment provides a kind of transmission/method of reseptance of monitor message, this method based on GMP fixedly byte of padding finish, present embodiment is mapped to 16 ODU1 in the ODU3e2 container and transmits, the process of transmitting of monitor message is equivalent to the GMP mapping process, and the receiving course of monitor message is equivalent to GMP and separates mapping process.As shown in figure 10, mapping comprises following process:
Mapping process is as follows:
The first step, GMP mapping processing unit is selected Cn=14636 according to low order signal type ODU1 and higher order signal type ODU3e2;
Determine Pm=15232 according to low order signal type ODU1 and higher order signal type ODU3e2.
In second step, main control unit is coordinated the mapping processing unit according to the condition of the even filling among the embodiment 2, and ODU1 is loaded among the ODU3e2;
The 3rd step entered the overhead processing unit, and whether main control unit sends order notification overhead processing unit needs to fill the GCC byte;
The 4th step, if, then fill the GCC byte, if not, then fixedly fill out 0;
In the 5th step, the overhead processing unit is inserted overhead part with Cn as expense;
In the 6th step, GMP disposes.
It is as follows that GMP separates mapping process:
The first step, the overhead processing unit reads Cn after receiving the ODU3e2 signal, and the notice main control unit;
In second step, main control unit calculates fixedly byte of padding position according to Cn, and reads fixedly first byte of byte of padding;
In the 3rd step,, then directly entered for the 5th step if fixedly first byte of byte of padding is 0;
The 4th step, if fixedly first byte of byte of padding is not 0, then read fixedly byte of padding, main control unit carries out GCC to be handled;
In the 5th step, enter GMP mapping processing unit and separate the mapping processing.
According to top processing method, the maximum portability GCC of an OTU frame byte number=Pm-Cn=596, and original OTN frame GCC total bytes is 6, is equivalent to former universal monitor bandwidth chahnel to be enlarged 99 times at most.
Embodiment 4
Figure 11 shows the structured flowchart according to the dispensing device of a kind of monitor message of the embodiment of the invention, and this device comprises:
Mapping processing unit 12 is used for the low rank optical channel data unit ODU signal that receives is shone upon processing according to GMP, is mapped as the high-order ODU signal of appointment, and wherein, high-order ODU signal comprises idle bytes and overhead part;
Overhead processing unit 14 links to each other with mapping processing unit 12, is used for filling the GCC byte in idle bytes, and the content of this GCC byte is a monitor message to be sent; The customer data amount Cn that current period is sent is filled in overhead part;
Transmitting element 16 links to each other with overhead processing unit 14, and being used for high-order ODU signal map is the OTU signal, sends this OTU signal.
Preferably, this device also comprises:
Main control unit is used to judge whether current period has monitor message to be sent, if notification overhead processing unit 14 needs to fill the GCC byte; If not, notification overhead processing unit 14 does not need to fill the GCC byte;
Overhead processing unit 14 comprises:
First fills subelement, after being used to receive needs and filling GCC byte notice, and filling GCC byte in idle bytes;
Second fills subelement, be used to receive do not need to fill GCC byte notice after, in idle bytes, fill designated character;
The 3rd fills subelement, be used for first fill subelement or second fill subelement fill finish after, fill the customer data amount Cn that current period sends in overhead part.
When above-mentioned GCC byte is not filled up idle bytes, in remaining idle bytes, dose designated character.This designated character can be 0.
The Cn of present embodiment can determine according to the type of low order ODU signal and the type of high-order ODU signal.
Present embodiment can utilize idle bytes to transmit the GCC byte under the prerequisite that does not take expense, has improved the bandwidth of monitoring, has bigger practical value.
Embodiment 5
Figure 12 shows the structured flowchart according to the receiving system of a kind of monitor message of the embodiment of the invention, and this device comprises:
Reading unit 22 is used for the OTU signal that receives separated and is mapped as high-order ODU signal, reads the customer data amount Cn that current period sends from the overhead part of this high-order ODU signal;
Monitor message extraction unit 24 links to each other with reading unit 22, and the Cn that is used for reading according to reading unit 22 calculates the filling position of GCC byte, extracts monitor message from filling position;
Separate mapping processing unit 26, be used for high-order ODU signal being separated mapping and handle according to GMP.
The monitor message extraction unit 24 of present embodiment extracts before the monitor message from filling position, can also judge whether the content of filling in the filling position is designated character earlier, if notice is separated mapping processing unit 26 and according to GMP high-order ODU signal is separated the mapping processing; If not, from filling position, extract monitor message.
Above-mentioned designated character can be 0.
When specific implementation, this receiving system also can be arranged on the same network element device with the dispensing device in the foregoing description 4, make this network element device both have the function that sends monitor message, has the function that receives monitor message again, for example, reading unit 22 is arranged in the overhead processing unit, monitor message extraction unit 24 is arranged in the main control unit, will separate mapping processing unit 26 and be arranged in the mapping processing unit.
Present embodiment reads Cn by the overhead part from high-order ODU signal, obtains filling position according to Cn then, and then the monitor message that obtains filling.Realize simply, and do not increase new signaling consumption, saved bandwidth resources.
Embodiment 6
Figure 13 shows the structured flowchart according to the transmission system of a kind of monitor message of the embodiment of the invention, and the dispensing device 10 of the monitor message that provides among the embodiment is provided in this system, and the receiving system 20 of the monitor message that provides among the embodiment 5 also is provided.The function that the dispensing device 10 of monitor message and the receiving system 20 of monitor message possess is same with the above-mentioned embodiment, repeats no more here.
Present embodiment can utilize idle bytes to transmit the GCC byte under the prerequisite that does not take expense, has improved the bandwidth of monitoring, has bigger practical value.
As can be seen from the above description, the present invention has realized following technique effect:
Above embodiment is by filling monitor message in the idle bytes of high-order ODU signal, and, after the network element that receives high-order ODU signal is determined filling position, just can extract monitor message, can under the prerequisite that does not take expense, transmit monitor message, solve monitor message and transmitted the big problem of limitation, improved the monitoring bandwidth, had stronger practical value.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the sending method of a monitor message is characterized in that, comprising:
Network element shines upon processing to the low rank optical channel data unit ODU signal that receives according to general mapping rules GMP, is mapped as the high-order ODU signal of appointment, and wherein, described high-order ODU signal comprises idle bytes and overhead part;
Described network element is filled all purpose communication passage GCC byte in described idle bytes, the content of described GCC byte is a monitor message to be sent;
Described network element is filled in described overhead part with the customer data amount Cn that current period sends;
Described network element is a light path delivery unit OTU signal with described high-order ODU signal map, sends described OTU signal.
2. method according to claim 1 is characterized in that, when described GCC byte is not filled up described idle bytes, doses designated character in remaining idle bytes.
3. method according to claim 2 is characterized in that, described network element also comprised fill all purpose communication passage GCC byte in described idle bytes before:
Described network element judges whether current period has monitor message to be sent, if carry out described step of filling all purpose communication passage GCC byte in described idle bytes; If not, in described idle bytes, fill described designated character.
4. according to claim 2 or 3 described methods, it is characterized in that described designated character is 0.
5. method according to claim 1 is characterized in that, described Cn is that described network element is determined according to the type of described low order ODU signal and the type of described high-order ODU signal.
6. the method for reseptance of a monitor message is characterized in that, comprising:
Network element is separated the light path delivery unit OTU signal that receives and is mapped as high rank optical channel data unit ODU signal, reads the customer data amount Cn of current period transmission from the overhead part of described high-order ODU signal;
Described network element extracts monitor message according to the filling position of described Cn computer general communication port GCC byte from described filling position;
Described network element is separated mapping according to general mapping rules GMP to described high-order ODU signal and is handled.
7. method according to claim 6 is characterized in that, described network element also comprised extract monitor message from described filling position before:
Described network element judges whether the content of filling in the described filling position is designated character, if carry out described step of described high-order ODU signal being separated the mapping processing according to GMP; If not, carry out the step of from described filling position, extracting described monitor message.
8. the dispensing device of a monitor message is characterized in that, comprising:
The mapping processing unit is used for the low rank optical channel data unit ODU signal that receives is shone upon processing according to general mapping rules GMP, is mapped as the high-order ODU signal of appointment, and wherein, described high-order ODU signal comprises idle bytes and overhead part;
The overhead processing unit is used for filling all purpose communication passage GCC byte in described idle bytes, and the content of described GCC byte is a monitor message to be sent; The customer data amount Cn that current period is sent is filled in described overhead part;
Transmitting element, being used for described high-order ODU signal map is light path delivery unit OTU signal, sends described OTU signal.
9. device according to claim 8 is characterized in that, described device also comprises:
Main control unit is used to judge whether current period has monitor message to be sent, if notify described overhead processing unit need fill the GCC byte; If not, notify described overhead processing unit not need to fill the GCC byte;
Described overhead processing unit comprises:
First fills subelement, after being used to receive needs and filling GCC byte notice, and filling GCC byte in described idle bytes;
Second fills subelement, be used to receive do not need to fill GCC byte notice after, in described idle bytes, fill designated character;
The 3rd fills subelement, be used for described first fill subelement or second fill subelement fill finish after, fill the customer data amount Cn that current period sends in described overhead part.
10. the receiving system of a monitor message is characterized in that, comprising:
Reading unit is used for the light path delivery unit OTU signal that receives separated and is mapped as high rank optical channel data unit ODU signal, reads the customer data amount Cn that current period sends from the overhead part of described high-order ODU signal;
The monitor message extraction unit is used for the filling position of the Cn computer general communication port GCC byte that reads according to described reading unit, extracts monitor message from described filling position;
Separate the mapping processing unit, be used for described high-order ODU signal being separated mapping and handle according to general mapping rules GMP.
11. the transmission system of a monitor message is characterized in that, comprises the dispensing device of claim 8 or 9 described monitor messages, also comprises the receiving system of the described monitor message of claim 10.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102170331A (en) * | 2011-05-09 | 2011-08-31 | 中兴通讯股份有限公司 | Method and device for adjusting speed of general communication channel (GCC) |
| WO2013159314A1 (en) * | 2012-04-26 | 2013-10-31 | 中兴通讯股份有限公司 | Gmp mapping method and device for optical channel data unit |
| WO2014026576A1 (en) * | 2012-08-13 | 2014-02-20 | 中兴通讯股份有限公司 | Method and device for data mapping in optical transport network |
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| WO2013159314A1 (en) * | 2012-04-26 | 2013-10-31 | 中兴通讯股份有限公司 | Gmp mapping method and device for optical channel data unit |
| WO2014026576A1 (en) * | 2012-08-13 | 2014-02-20 | 中兴通讯股份有限公司 | Method and device for data mapping in optical transport network |
| CN104904148A (en) * | 2012-12-03 | 2015-09-09 | 阿尔卡特朗讯 | Method and apparatus for transmitting an asynchronous transport signal over an optical section |
| CN105792031A (en) * | 2016-03-08 | 2016-07-20 | 烽火通信科技股份有限公司 | Method for generating Cn value through GMP mapping in OTN |
| CN105792031B (en) * | 2016-03-08 | 2019-01-11 | 烽火通信科技股份有限公司 | A kind of method that GMP mapping generates Cn value in OTN |
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| CN114268859A (en) * | 2020-09-16 | 2022-04-01 | 中国移动通信有限公司研究院 | Signal transmission method, device, equipment and readable storage medium |
| CN112564977A (en) * | 2020-12-15 | 2021-03-26 | 安徽皖通邮电股份有限公司 | Method for expanding universal communication channel of OTN (optical transport network) equipment |
| CN112564977B (en) * | 2020-12-15 | 2022-07-19 | 安徽皖通邮电股份有限公司 | Method for expanding general communication channel of OTN (optical transport network) equipment |
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