CN101981831B

CN101981831B - Method, device and communication system of transmitting client data

Info

Publication number: CN101981831B
Application number: CN200980000540.7A
Authority: CN
Inventors: 曾理; 沈瑶; 向俊凌; 苏伟; 丁炽武
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-05-26
Filing date: 2009-05-26
Publication date: 2013-08-28
Anticipated expiration: 2029-05-26
Also published as: WO2010135864A1; CN101981831A

Abstract

A method, device and communication system of transmitting client data are provided in the present invention, wherein the method of transmitting client data involves that: receiving and demapping the optical channel data unit k, obtaining the client data of several channels carried by the optical channel data unit k, performing the time delay compensation for the obtained client data of several channels, transmitting the time delay compensated client data. In the embodiment of the present invention, the OTN transmitter doesn't perform the time delay compensation for the client data, whereas the OTN receiver performs the time delay compensation for the client data, so that it can eliminate the time delay caused by the client data transmission in OTN, and improve the transmission reliability of the client data relatively, meanwhile it can relatively reduce the data processing complexity in the OTN transmitter.

Description

Transmit method, equipment and the communication system of customer data

Technical field

The present invention relates to communication technical field, be specifically related to a kind of method, equipment and communication system that transmits customer data.

Background technology

Optical transfer network (OTN, Optical Transport Network) technology is considered to the core technology that transmits net of future generation.OTN possesses powerful series connection monitoring (TCM, Tandem Connection Monitoring) ability, abundant operation, management, safeguards (OAM, Operation Administration Maintenance) ability and the outer forward error correction (FEC of band, Forward Error Correction) ability can realize flexible dispatching and the management of big capacity business.

The G.709 suggestion that communication standard portion of International Telecommunications Union (ITU-T) formulates mainly is the standard about OTN frame structure and mapping aspect.G.709 the standard frame of the OTN of definition can be as shown in Figure 1 in the suggestion, and the OTN frame is the modular construction of 4080*4, comprising: frame alignment data (FAS, Frame Alignmem Signal) are used for providing the frame synchronization positioning function; (OH Overhead), is used for providing the Optical Channel Transport Unit-k level other Network Management Function Optical Channel Transport Unit-k k (ODUk, Optical Channel Transport Unit-k) expense; Optical Channel Data Unit-k k (ODUk, Optical Channel Data Unit-k) expense is used for providing the maintenance and operation function; Optical channel Payload Unit k (OPUk, Optical Channel Payload Unit-k) expense is used for providing professional adaption function; OPUk payload section (Payload) also can be described as the payload section of OTN frame, is mainly used in the bearing function that provides professional; FEC is the forward error correction byte, is used for providing error detector and error correction.Wherein, coefficient k is represented the bit rate and different types of OPUk, ODUk and the ODUk that support, for example, k=1 represents that bit rate is 2.5Gbit/s, and k=2 represents that bit rate is 10Gbit/s, and k=3 represents that bit rate is 40Gbit/s, k=4, the expression bit rate is 100Gbit/s.

Utilize the OTN carrying to transmit in the process of Ethernet service, if the transmission delay of customer data accumulative total has exceeded the delay variance compensation range of Ethernet self, may cause customer data unavailable, therefore, OTN equipment need carry out certain delay compensation to customer data usually.Be example to utilize OTN carrying to transmit 100GE (100 Gigabit Ethernet) business, when prior art is chosen in 100GE customer data access OTN territory, earlier the 100GE customer data being carried out data by OTN data sending terminal (source end) integrates and compensation of delay, and then be mapped to ODU4 and transmit at OTN, and after OTN data receiver (destination) solution maps out the 100GE customer data of ODU4 carrying, no longer it is carried out compensation of delay usually.

In realizing process of the present invention, the inventor finds, prior art is carried out the compensation of delay operation at OTN source end to the 100GE customer data, and the OTN destination does not carry out compensation of delay usually, do not transmit the delay that may cause at OTN owing to consider customer data, may cause the unavailable of customer data, the reliability of prior art scheme transmission customer data is relatively low.

Summary of the invention

Embodiment of the invention technical problem to be solved is, a kind of method, equipment and communication system that transmits customer data is provided, and can improve the transmission reliability of customer data relatively.

For solving the problems of the technologies described above, the technical scheme that provides in the embodiment of the invention is as follows:

A kind of method that transmits customer data comprises:

Receive and separate mapping Optical Channel Data Unit-k ODUk, obtain the customer data of a plurality of passages of ODUk carrying; Customer data to a plurality of passages of obtaining carries out compensation of delay; The customer data behind the compensation of delay is carried out in transmission.Wherein, described customer data to a plurality of passages of obtaining carries out compensation of delay, comprise: if the customer data of a plurality of passages that obtain is the customer data of a plurality of physical channels, then the customer data of a plurality of physical channels that will obtain demultiplexes into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay; If the customer data of a plurality of passages that obtain is the customer data of a plurality of Virtual Channels, then obtain the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of obtaining is carried out compensation of delay.

A kind of transmission net node comprises:

Receive parsing module, be used for receiving and separate and shine upon ODUk, obtain the customer data of a plurality of passages of ODUk carrying; The compensation of delay module, when the customer data that is used for a plurality of passages of obtaining at described reception parsing module was the customer data of a plurality of physical channels, the customer data of a plurality of physical channels that described reception parsing module is obtained demultiplexed into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay; When the customer data of a plurality of passages that obtain at described reception parsing module is the customer data of a plurality of Virtual Channels, obtain the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels that described reception parsing module is obtained carries out compensation of delay; First sending module is used for sending the customer data after described compensation of delay module is carried out compensation of delay.

A kind of communication system comprises:

First node is for the customer data that obtains a plurality of passages; The customer data of a plurality of passages of obtaining is mapped to ODUk and sends; Section Point is used for receiving and separates and shines upon ODUk, obtains the customer data of a plurality of physical channels of ODUk carrying; The customer data of a plurality of physical channels of obtaining is demultiplexed into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay; The customer data behind the compensation of delay is carried out in transmission; Or Section Point is used for receiving and separates and shines upon ODUk, obtains the customer data of a plurality of Virtual Channels of ODUk carrying; Obtain the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of obtaining is carried out compensation of delay; The customer data behind the compensation of delay is carried out in transmission.

By technique scheme as can be seen, the technical scheme of the embodiment of the invention has following advantage: the OTN transmitting terminal does not carry out compensation of delay to customer data, and by the OTN receiving terminal customer data is carried out delay compensation, can reject customer data and transmit the delay that may cause at OTN, can improve the transmission reliability of customer data relatively; Reduced simultaneously the complexity that OTN transmitting terminal data are handled relatively.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention and technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment and the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is a kind of OTN frame structure schematic diagram that prior art provides;

Fig. 2 is a kind of method flow diagram that transmits customer data that the embodiment of the invention one provides;

Fig. 3 is a kind of method flow diagram that transmits customer data that the embodiment of the invention two provides;

Fig. 4 is a kind of method flow diagram that transmits customer data that the embodiment of the invention three provides;

Fig. 5 is a kind of method flow diagram that transmits customer data that the embodiment of the invention four provides;

Fig. 6 is a kind of method flow diagram that transmits customer data that the embodiment of the invention five provides;

Fig. 7 is a kind of method flow diagram that transmits customer data that the embodiment of the invention six provides;

Fig. 8 is a kind of method flow diagram that transmits customer data that the embodiment of the invention seven provides;

Fig. 9 is a kind of structural representation that transmits the net node that the embodiment of the invention eight provides;

Figure 10 is a kind of structural representation that transmits the net node that the embodiment of the invention nine provides;

Figure 11 is the structural representation of a kind of communication system of providing of the embodiment of the invention ten;

Figure 12 is the structural representation of the another kind of communication system that provides of the embodiment of the invention;

Figure 13 is the structural representation of the another kind of communication system that provides of the embodiment of the invention;

Figure 14 is the implementation schematic diagram that the another kind that provides of the embodiment of the invention transmits customer data;

Figure 15 is the implementation schematic diagram that the another kind that provides of the embodiment of the invention transmits customer data.

Embodiment

The embodiment of the invention provides a kind of method, equipment and communication system that transmits customer data, in transmitting the customer data process, transmitting terminal (source end) does not carry out compensation of delay, carries out delay compensation by receiving terminal (destination), can improve the transmission reliability of customer data relatively.

Below by specific embodiment, be described in detail respectively.

See also Fig. 2, a kind of method first embodiment that transmits customer data can comprise in the embodiment of the invention:

210, receive and separate mapping ODUk, obtain the customer data of a plurality of passages of ODUk carrying.

Under a kind of application scenarios, transmitting terminal can obtain the customer data of a plurality of passages, the customer data of a plurality of passages of obtaining is mapped to one or more ODUk and sends.Receiving terminal can receive and separate one or more ODUk that the mapping transmitting terminal sends, and obtains a plurality of physical channels of one or more ODUk carryings and/or the customer data of a plurality of Virtual Channels.

Be understandable that transmitting terminal can adopt customer data that multiple mode shines upon a plurality of passages to ODUk, the ODUk that receiving terminal then can adopt corresponding with it multiple mode solution mapping to receive, the present invention does not do restriction.

For instance, if utilize the OTN carrying to transmit the 100GE business, transmitting terminal can obtain the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces (CAUI, 100Gigabit Attachment Unit Interface) from ethernet device or miscellaneous equipment.

Under a kind of application scenarios, transmitting terminal can demultiplex into the customer data of 10 physical channels of CAUI of obtaining the customer data of 20 Virtual Channels, the customer data of 20 Virtual Channels is mapped to 80 time slots of ODU4 and sends.Receiving terminal can receive and separate 80 time slots of the ODU4 of mapping OTN data sending terminal transmission, obtains the customer data of 20 Virtual Channels of ODU4 carrying.

Under another kind of application scenarios, transmitting terminal can be directly be mapped to 80 time slots of ODU4 with the customer data of 10 physical channels of CAUI that obtain and sends.Receiving terminal can receive and separate 80 time slots of the ODU4 of mapping transmitting terminal transmission, obtains the customer data of 10 physical channels of CAUI of ODU4 carrying.

Under another kind of application scenarios, transmitting terminal can be mapped to ODU2e-10v with the customer data of 10 physical channels of CAUI, ODU2e-10v is split into 10 ODU2e and send, transmitting terminal also can be directly be mapped to 10 ODU2e and transmission with the customer data of 10 physical channels of CAUI.Receiving terminal can receive and separate 10 ODU2e that the mapping transmitting terminal sends, and obtains the customer data of 10 physical channels of CAUI of 10 ODU2e carryings.

220, the customer data to a plurality of passages of obtaining carries out compensation of delay.

Under a kind of application scenarios, receiving terminal is if the customer data of a plurality of passages that obtain is the customer data of a plurality of physical channels, and then the customer data of a plurality of physical channels that will obtain demultiplexes into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay.

Receiving terminal then obtains the delayed data of the customer data of a plurality of Virtual Channels respectively if the customer data of a plurality of passages that obtain is the customer data of a plurality of Virtual Channels; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of obtaining is carried out compensation of delay.

For instance, if utilize the OTN carrying to transmit the 1OOGE business, under a kind of application scenarios, after transmitting terminal can demultiplex into the customer data of 20 Virtual Channels with the customer data of 10 physical channels of CAUI, obtain the delayed data of the customer data of 20 Virtual Channels respectively, the delayed data of the customer data of 20 Virtual Channels is carried at the ODUk overhead area.Receiving terminal can be separated mapping ODUk overhead area, obtains the customer data delayed data of 20 Virtual Channels of its carrying; According to the delayed data that obtains the customer data of 20 Virtual Channels is carried out compensation of delay.

Under another kind of application scenarios, receiving terminal can demultiplex into the customer data of 10 physical channels of CAUI of obtaining the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay.

230, send the customer data carry out behind the compensation of delay.

Under a kind of application scenarios, receiving terminal can be multiplexed into the customer data of 20 Virtual Channels after compensating the customer data of 10 physical channels of CAUI, and can send the customer data of 10 physical channels of CAUI that are multiplexed into to ethernet device or miscellaneous equipment.

By technique scheme as can be seen, in the present embodiment, the OTN transmitting terminal does not carry out compensation of delay to customer data, and by the OTN receiving terminal customer data is carried out delay compensation, can reject customer data and transmit the delay that may cause at OTN, can improve the transmission reliability of customer data relatively; Reduced simultaneously the complexity that OTN transmitting terminal data are handled relatively.

Embodiment two

For ease of understanding, present embodiment transmits the 100GE business to utilize OTN, and node A (source end) obtains delayed data, and it is example that Node B (destination) is carried out compensation of delay, is specifically described.

See also Fig. 3, a kind of method that transmits customer data of the embodiment of the invention two can comprise:

301, node A obtains the customer data of 10 10G physical channels of CAUI.

Under a kind of application scenarios, node A can obtain the customer data of 10 physical channels of CAUI from ethernet device, and each physical channel of CAUI is the 10G physical channel.

302, the customer data of node A 10 10G physical channels that will obtain demultiplexes into the customer data of 20 Virtual Channels.

Under a kind of application scenarios, node A can carry out the bit demultiplexing with the customer data that obtains 10 10G physical channels of hundred gigabit Attachment Unit Interfaces, and it is reverted to the customer data of 20 Virtual Channels.

303, node A detects the alignment character code piece in the customer data of 20 Virtual Channels, obtains the delayed data of the customer data of 20 Virtual Channels respectively.

Generally comprise data code block and various control character code piece (if code block size 66B then can be called the 66B code block) in the customer data of each Virtual Channel, alignment character code piece is the wherein a kind of of control word code block.Alignment character code piece periodically is inserted between other code block usually, can indicate the time-delay situation, and each Virtual Channel correspondence the alignment character code piece of different coding.

Under a kind of application scenarios, node A can carry out the bypass monitoring to the alignment character code piece in the customer data of 20 Virtual Channels respectively, gets access to the delayed data of 20 Virtual Channels respectively.

304, node A is mapped to the customer data of 20 Virtual Channels respectively in 80 time slots of ODU4, the delayed data of the customer data of 20 Virtual Channels is mapped to the overhead area of ODU4 and sends.

Under a kind of application scenarios, the customer data of 20 Virtual Channels that node A can go out demultiplexing is mapped in 80 time slots of ODU4, and the customer data of each Virtual Channel can be mapped in any 4 time slots of ODU4.Node A can adopt the mode of unified control to shine upon the customer data of 20 Virtual Channels to 80 time slots of ODU4.Node A can also be mapped to the delayed data of 20 Virtual Channels obtaining the overhead area of ODU4, and sends ODU4.

305, Node B receives and separates mapping ODU4, the delayed data of the customer data of 20 Virtual Channels of acquisition ODU4 carrying and the customer data of 20 Virtual Channels.

Under a kind of application scenarios, Node B can receive the ODU4 that node A sends, and separates 80 time slots that shine upon the ODU4 that receives, and obtains the customer data of 20 Virtual Channels of its carrying.

Node B can also be separated the overhead area of the ODU4 that receives of mapping, obtains the delayed data etc. of customer data of 20 Virtual Channels of its carrying.

306, Node B is according to the delayed data of 20 Virtual Channels that obtain, and the customer data of 20 Virtual Channels obtaining is carried out compensation of delay.

307, Node B will be carried out the customer data of 20 Virtual Channels behind the compensation of delay, be multiplexed into the customer data of 10 physical channels of CAUI and send.

Under a kind of application scenarios, node A can be multiplexed into the customer data that carries out 20 Virtual Channels behind the compensation of delay customer data of 10 10G physical channels of CAUI, and can send the customer data of its 10 10G physical channels of CAUI that is multiplexed into to ethernet device or miscellaneous equipment.

By technique scheme as can be seen, in the present embodiment, the OTN transmitting terminal does not carry out compensation of delay to customer data, and by the OTN receiving terminal customer data is carried out delay compensation, can reject customer data and transmit the delay that may cause at OTN, can improve the transmission reliability of customer data relatively; Reduced simultaneously the complexity that OTN transmitting terminal data are handled relatively; Simplify the processing procedure that customer data transmits on the whole.

Further, bring in the customer data of 10 10G physical channels of demultiplexing CAUI by transmission, and obtain delayed data, shared the data process load of receiving terminal relatively.

Embodiment three

This enforcement is mapped to ODU4 with node A (source end) with the customer data of 10 10G physical channels of CAUI, and it is example that Node B (destination) is carried out compensation of delay, is specifically described.

See also Fig. 4, a kind of method that transmits customer data of the embodiment of the invention three can comprise:

401, node A obtains the customer data of 10 10G physical channels of CAUI.

402, node A is mapped to ODU4 and transmission respectively with the customer data of 10 10G physical channels.

Under a kind of application scenarios, node A can interleave the customer data of 10 10G physical channels of CAUI of obtaining with the n bit mode, asynchronous mapping is to ODU4 and send.

403, Node B receives and separates mapping ODU4, obtains the customer data of 10 10G physical channels of CAUI of ODU4 carrying.

Under a kind of application scenarios, Node B can receive the ODU4 that node A sends, and separates the OPU4 payload section of shining upon the ODU4 that receives, and obtains the customer data of 10 10G physical channels of CAUI of its carrying.

404, the customer data of Node B 10 10G physical channels that will obtain demultiplexes into the customer data of 20 Virtual Channels.

Under a kind of application scenarios, node A carries out the bit demultiplexing with the customer data of 10 10G physical channels of CAUI of obtaining, and it is reverted to the customer data of 20 Virtual Channels.

405, Node B detects the alignment character code piece in the customer data of 20 Virtual Channels, obtains the delayed data of the customer data of 20 Virtual Channels respectively.

Under a kind of application scenarios, Node B can be earlier that the customer data of 20 Virtual Channels is carried out the 66B code block is synchronous, and then detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively.

406, Node B is carried out compensation of delay to the customer data of 20 Virtual Channels obtaining respectively according to the delayed data of 20 Virtual Channels that obtain.

407, the Node B customer data that will carry out 20 Virtual Channels behind the compensation of delay is multiplexed into the customer data of 10 physical channels and sends.

Under a kind of application scenarios, step 407 can be identical with step 307, and the concrete implementation of step 407 can repeat no more with reference to the associated description in the step 307 herein.

Embodiment four

This enforcement is mapped to the customer data of 10 10G physical channels of CAUI in 80 time slots of ODU4 with node A (source end), and it is example that Node B (destination) is carried out compensation of delay, is specifically described.

See also Fig. 5, a kind of method that transmits customer data of the embodiment of the invention four can comprise:

501, node A obtains the customer data of 10 10G physical channels of CAUI.

502, node A is mapped to the customer data of 10 10G physical channels of CAUI of obtaining in 80 time slots of ODU4 and sends.

Under a kind of application scenarios, node A can be mapped to the customer data of 10 10G physical channels of CAUI of obtaining in 80 time slots of ODU4, and the customer data of each 10G physical channel can be mapped in any 8 time slots of ODU4.Node A can adopt the mode of unified control to shine upon the customer data of 10 10G physical channels to 80 time slots of ODU4.

503, Node B receives and separates mapping ODU4, obtains the customer data of 10 10G physical channels of CAUI of ODU4 carrying.

Under a kind of application scenarios, Node B can receive the ODU4 that node A sends, and separates 80 time slots that shine upon the ODU4 that receives, and obtains the customer data of 10 10G physical channels of CAUI of its carrying.

504, Node B demultiplexes into the customer data of 10 10G physical channels of CAUI of acquisition the customer data of 20 Virtual Channels.

505, Node B detects the alignment character code piece in the customer data of 20 Virtual Channels, obtains the delayed data of the customer data of 20 Virtual Channels respectively.

Under a kind of application scenarios, step 505 can be identical with step 405, and the concrete implementation of step 505 can repeat no more with reference to the associated description in the step 405 herein.

506, Node B is according to the delayed data of 20 Virtual Channels that obtain, and the customer data of 20 Virtual Channels obtaining is carried out compensation of delay.

507, the Node B customer data that will carry out 20 Virtual Channels behind the compensation of delay is multiplexed into the customer data of 10 10G physical channels of CAUI and sends.

Under a kind of application scenarios, step 507 can be identical with step 307, and the concrete implementation of step 507 can repeat no more with reference to the associated description in the step 307 herein.

Embodiment five

This enforcement is mapped to ODU2e-10v with node A (source end) with the customer data of 10 10G physical channels of CAUI, and sends by 10 ODU2e, and it is example that Node B (destination) is carried out compensation of delay, is specifically described.

See also Fig. 6, a kind of method that transmits customer data of the embodiment of the invention five can comprise:

601, node A obtains the customer data of 10 10G physical channels of CAUI.

602, node A is mapped to ODU2e-10v respectively with the customer data of 10 10G physical channels of CAUI of obtaining.

Wherein, ODU2e-10v is cascade structure, ODU2e-10v can be split into 10 ODU2e.

603, node A splits into 10 ODU2e with ODU2e-10v and sends.

604, Node B receives and separates 10 ODU2e of mapping, obtains the customer data of 10 10G physical channels of CAUI of 10 ODU2e carryings.

Under a kind of application scenarios, Node B can receive 10 ODU2e that node A sends, and separates 10 ODU2e that mapping receives, and obtains the customer data of 10 10G physical channels of CAUI of its carrying.

605, Node B demultiplexes into the customer data of 10 10G physical channels of CAUI of acquisition the customer data of 20 Virtual Channels.

606, Node B detects the alignment character code piece in the customer data of 20 Virtual Channels, obtains the delayed data of the customer data of 20 Virtual Channels respectively.

Under a kind of application scenarios, step 606 can be identical with step 405, and the concrete implementation of step 606 can repeat no more with reference to the associated description in the step 405 herein.

607, Node B is according to the delayed data of 20 Virtual Channels that obtain, and the customer data of 20 Virtual Channels obtaining is carried out compensation of delay.

608, the Node B customer data that will carry out 20 Virtual Channels behind the compensation of delay is multiplexed into the customer data of 10 10G physical channels of CAUI and sends.

Under a kind of application scenarios, step 608 can be identical with step 307, and the concrete implementation of step 608 can repeat no more with reference to the associated description in the step 307 herein.

Embodiment six

This enforcement is mapped to 10 ODU2e with node A (source end) with the customer data of 10 10G physical channels of CAUI, and it is example that Node B (destination) is carried out compensation of delay, is specifically described.

See also Fig. 7, a kind of method that transmits customer data of the embodiment of the invention six can comprise:

701, node A obtains the customer data of 10 10G physical channels of CAUI.

702, node A is mapped to 10 ODU2e respectively with the customer data of 10 10G physical channels of CAUI of obtaining and sends.

703, Node B receives and separates 10 ODU2e of mapping, obtains the customer data of 10 10G physical channels of CAUI of 10 ODU2e carryings.

704, Node B demultiplexes into the customer data of 10 10G physical channels of CAUI of acquisition the customer data of 20 Virtual Channels.

705, Node B detects the alignment character code piece in the customer data of 20 Virtual Channels, obtains the delayed data of the customer data of 20 Virtual Channels respectively.

Under a kind of application scenarios, step 705 can be identical with step 405, and the concrete implementation of step 705 can repeat no more with reference to the associated description in the step 405 herein.

706, Node B is according to the delayed data of 20 Virtual Channels that obtain, and the customer data of 20 Virtual Channels obtaining is carried out compensation of delay.

707, the Node B customer data that will carry out 20 Virtual Channels behind the compensation of delay is multiplexed into the customer data of 10 physical channels of CAUI and sends.

Under a kind of application scenarios, step 707 can be identical with step 307, and the concrete implementation of step 707 can repeat no more with reference to the associated description in the step 307 herein.

Embodiment seven

Based on above-mentioned any one embodiment, this enforcement can also be mapped to ODUk with the customer data of a separate N physical channel with node A (source end), and the forwarding that Node B (destination) is carried out the customer data of N physical channel is example, is specifically described.

See also Fig. 8, a kind of method that transmits customer data of the embodiment of the invention six can comprise:

80l, node A obtain the customer data of a separate N physical channel.

Under a kind of application scenarios, node A can also obtain the customer data of 10 separate physical channels, wherein, the type of service of the customer data of above-mentioned separate 10 physical channels can comprise at least one in the following 10G CBR business: 10GE/FC business, 10G STM-64 business etc. the invention is not restricted to this.

802, the customer data of node A separate N the physical channel that will obtain is mapped to ODUk and sends.

Under a kind of application scenarios, the 10G CBR business datum that node A can obtain 10 separate physical channels is mapped to 10 ODU2e or ODU2 and transmission respectively.

Under another kind of application scenarios, the 10GCBR business datum that node A also can obtain 10 separate physical channels is mapped in 80 time slots of ODU4 and sends, and the 10G CBR business datum of each physical channel is mapped to 8 time slots of ODU4.

803, Node B receives and separates mapping ODUk, obtains the customer data of separate N physical channel of ODUk carrying.

Under a kind of application scenarios, 10 ODU2e that Node B can receiving node A sends or ODU2 separate the 10G CBR business datum of 10 separate physical channels of 10 ODU2e of mapping or ODU2 carrying.

Under another kind of application scenarios, the ODU4 that node A also can receiving node A sends, and separate 80 time slots of mapping ODU4, obtain the 10G CBR business datum of 10 separate physical channels of its carrying.

804, Node B is recovered the clock information of the customer data of separate N physical channel respectively, sends the customer data of N physical channel according to the clock information of the customer data of N passage.

Under a kind of application scenarios, Node B can be recovered the clock information of the 10G CBR business datum of 10 physical channels, sends the 10G CBR business datum of 10 physical channels according to the clock information of the 10G CBR business datum of each passage.

By technique scheme as can be seen, in this example, node A and Node B can also compatible carrying 10G CBR business when carrying transmits the 100GE business, and practicality is bigger.

Embodiment eight

Accordingly, also provide a kind of transmission net node in the embodiment of the invention, see also Fig. 9, a kind of transmission net node of the embodiment of the invention eight can comprise: data acquisition module 910 and mapping sending module 920.

Wherein, data acquisition module 910 is for the customer data that obtains a plurality of passages.

Under a kind of application scenarios, data acquisition module 910 can obtain the customer data of 10 physical channels of CAUI from ethernet device or miscellaneous equipment.

Mapping sending module 920, the customer data that is used for a plurality of passages that data acquisition module 910 is obtained is mapped to ODUk and sends.

Be understandable that mapping sending module 920 can adopt the customer data of a plurality of passages that multiple mode data acquisition module 910 obtains to ODUk.

Under a kind of application scenarios, mapping sending module 920 can comprise:

Demultiplexing submodule 921, the customer data that is used for 10 physical channels of CAUI that data acquisition module 910 is obtained demultiplex into the customer data of 20 Virtual Channels.

Submodule 922 is obtained in time-delay, and the alignment character code piece in the customer data of 20 Virtual Channels that go out for detection of demultiplexing submodule 921 demultiplexings obtains the delayed data of the customer data of 20 Virtual Channels respectively.

Mapping sends submodule 923, be used for the customer data that demultiplexing submodule 92l demultiplexing goes out 20 Virtual Channels is mapped to 80 time slots of ODU4, the delayed data that the customer data of 20 Virtual Channels that submodule 922 obtains is obtained in time-delay is mapped to the overhead area of ODU4 and sends.

Under another kind of application scenarios, the mode that mapping sending module 920 can interleave with the n bit for the customer data of 10 physical channels of CAUI that data acquisition module 910 is obtained, asynchronous mapping is to ODU4 and transmission.

Under another kind of application scenarios, mapping sending module 920 can be mapped to ODU2e-10v for the customer data of 10 physical channels of CAUI that data acquisition module 910 is obtained; ODU2e-10v is split into 10 ODU2e and transmission.

Under another kind of application scenarios, mapping sending module 920 can be mapped to 10 ODU2e and send for the customer data of 10 physical channels of CAUI that data acquisition module 910 is obtained.

Receiving terminal can receive and shine upon ODUk, obtains the customer data of ODUk carrying, and the customer data that obtains is carried out compensation of delay.

Under a kind of application scenarios, data acquisition module 910 can also be used for, and obtains the 10G CBR business datum of 10 separate physical channels from ethernet device or miscellaneous equipment.

Mapping sending module 920 can also be used for, and the 10G CBR business datum of 10 separate physical channels that data acquisition module 910 is obtained is mapped to 10 ODU2 or ODU2e and sends.

Mapping sending module 920 can also be used for, and the 10G CBR business datum of 10 separate physical channels that data acquisition module 910 is obtained is mapped in 80 time slots of ODU4 and sends.

Receiving terminal can receive and separate mapping ODUk, obtain the 10G CBR business datum of 10 separate physical channels of ODUk carrying, the clock information of the customer data of 10 the separate 10G physical channels that recover to obtain respectively, and send the customer data of 10 10G physical channels according to the clock information of the customer data of 10 separate 10G physical channels.

Be understandable that, the described transmission net of present embodiment node can be as the node A among the embodiment two to seven, the function of its each functional module can be according to the method specific implementation among the embodiment two to seven, its specific implementation process can not repeat them here referring to the associated description among the embodiment two to seven.

Embodiment nine

Accordingly, also provide a kind of transmission net node in the embodiment of the invention, see also Figure 10, a kind of transmission net node of the embodiment of the invention nine can comprise: receive parsing module 1010, compensation of delay module 1020 and first sending module 1030.

Wherein, receive parsing module 1010, be used for receiving and separate and shine upon ODUk, obtain the customer data of a plurality of passages of ODUk carrying.

Be understandable that transmitting terminal can adopt multiple mode to shine upon customer data to ODUk, receive the ODUk that 1010 of parsing modules can adopt corresponding with it multiple mode solution mapping to receive, the present invention does not do restriction.

Compensation of delay module 1020 is used for the customer data that receives a plurality of passages that parsing module 1010 obtains is carried out compensation of delay.

Under a kind of application scenarios, compensation of delay module 1020 specifically can be used for, when the customer data of a plurality of passages that receive parsing module 1010 acquisitions is the customer data of a plurality of physical channels, the customer data that receives a plurality of physical channels of parsing module 1010 acquisitions is demultiplexed into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay.

When the customer data of a plurality of passages that receive parsing module 1010 acquisitions is the customer data of a plurality of Virtual Channels, obtain the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data that receives a plurality of Virtual Channels that parsing module 1010 obtains is carried out compensation of delay.

First sending module 1030 is used for the customer data after forward delay interval compensating module 1020 carries out compensation of delay.

Transmitting the 100GE business with carrying is example, under a kind of application scenarios, receiving parsing module 1010 can be used for, and receives and separate mapping ODU4, the delayed data of the customer data of 20 Virtual Channels of the customer data of 20 Virtual Channels of 80 time slot carryings of acquisition ODU4 and the overhead area carrying of ODU4.

Compensation of delay module 1020 can comprise:

Compensation of delay submodule 1023 is used for the delayed data according to the customer data that receives 20 Virtual Channels that parsing module 1010 obtains, and the customer data that receives 20 Virtual Channels that analyzing sub-module 1010 obtains is carried out compensation of delay.

Under a kind of application scenarios, receiving parsing module 1010 can be used for, and receives and separate mapping ODU4, obtains the customer data of 10 physical channels of CAUI of ODU4 carrying.

Under a kind of application scenarios, receiving parsing module can be used for, and receives also to separate 10 ODU2e of mapping, obtains the customer data of 10 physical channels of CAUI that 10 ODU2e carry respectively.

Compensation of delay module 1020 can comprise: submodule 1022 and compensation of delay submodule 1023 are obtained in demultiplexing submodule 1021, time-delay.

Wherein, demultiplexing submodule 1021, the customer data that is used for receiving 10 physical channels of CAUI of parsing module 1010 acquisitions demultiplexes into the customer data of 20 Virtual Channels.

Submodule 1022 is obtained in time-delay, and the alignment character code piece in the customer data of 20 Virtual Channels that demultiplex into for detection of demultiplexing submodule 1021 obtains the delayed data of the customer data of 20 Virtual Channels respectively.

Compensation of delay submodule 1023 is used for obtaining according to time-delay the delayed data of the customer data of 20 Virtual Channels that submodule 1022 obtains, and the customer data of 20 Virtual Channels obtaining is carried out compensation of delay.

The customer data that first sending module 1030 can carry out compensation of delay submodule 1,023 20 Virtual Channels behind the compensation of delay is multiplexed with the customer data of 10 physical channels of CAUI and sends.

Under a kind of application scenarios, receiving parsing module 1010 can also be used for, and receives and separate mapping ODUk, obtains the customer data of 10 separate 10G physical channels of ODUk carrying.

Transmitting the net node can also comprise:

Second sending module 1040, be used for recovering respectively receiving the clock information of the customer data of 10 separate 10G physical channels that parsing module 1010 obtains, and send the customer data of 10 10G physical channels according to the clock information of the customer data of 10 separate 10G physical channels.

Be understandable that, the described transmission net of present embodiment node can be as the Node B among the embodiment two to seven, the function of its each functional module can be according to the method specific implementation among the embodiment two to seven, its specific implementation process can not repeat them here referring to the associated description among the embodiment two to seven.

Embodiment ten

Accordingly, also provide a kind of communication system in the embodiment of the invention, see also Figure 11, a kind of communication system of the embodiment of the invention ten can comprise first node 1110 and Section Point 1120.

Wherein, but first node 1110 and first node 1120 are connected with communication mode.

First node 1110 is for the customer data that obtains a plurality of passages; The customer data of a plurality of passages of obtaining is mapped to ODUk and sends.

Section Point 1120 is used for receiving and separates and shines upon ODUk, obtains the customer data of a plurality of passages of ODUk carrying; Customer data to a plurality of passages of obtaining carries out compensation of delay; The customer data behind the compensation of delay is carried out in transmission.

Under a kind of application scenarios, first node 1110 can map directly to the customer data of a plurality of physical channels of obtaining ODUk and send.Section Point can specifically be used for receiving and separate mapping ODUk, obtains the customer data of a plurality of physical channels of ODUk carrying; The customer data of a plurality of physical channels of obtaining is demultiplexed into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay; The customer data behind the compensation of delay is carried out in transmission.

Under another kind of application scenarios, the customer data demultiplexing of a plurality of physical channels that first node 1110 will obtain is the customer data of a plurality of Virtual Channels, and is mapped to ODUk and transmission.Section Point 1020 can specifically be used for, and receives and separate mapping ODUk, obtains the customer data of a plurality of Virtual Channels of ODUk carrying; Obtain the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of obtaining is carried out compensation of delay; The customer data behind the compensation of delay is carried out in transmission.

Transmitting the 100GE business with first node 1110 and Section Point 1120 carryings is example, and under a kind of application scenarios, first node 1110 specifically can be used for, and obtains the customer data of 10 physical channels of CAUI; The customer data of 10 physical channels obtaining is demultiplexed into the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; The customer data of 20 Virtual Channels is mapped in 80 time slots of ODU4, the delayed data of the customer data of 20 Virtual Channels is mapped to the overhead area of ODU4 and sends.

Section Point 1120 can specifically be used for, and receives and separate mapping ODU4, the delayed data of the customer data of 20 Virtual Channels of the customer data of 20 Virtual Channels of 80 time slots carryings of acquisition ODU4 and the overhead area carrying of ODU4; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay; The customer data of 20 Virtual Channels after compensating is multiplexed with customer data and the transmission of 10 physical channels of CAUI.

Under another kind of application scenarios, first node 1110 specifically can be used for, and obtains the customer data of 10 physical channels of CAUI; The customer data of 10 physical channels obtaining is mapped to ODU4 and sends.

Section Point 1120 specifically can be used for, and receives and separate mapping ODU4, obtains the customer data of 10 physical channels of CAUI of ODU4 carrying; The customer data of 10 physical channels obtaining is demultiplexed into the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay; The customer data of 20 Virtual Channels after compensating is multiplexed with customer data and the transmission of 10 physical channels of CAUI.

Under another kind of application scenarios, first node 1110 specifically can be used for, and obtains the customer data of 10 physical channels of CAUI; The customer data of 10 physical channels obtaining is mapped to ODU2e-10v; ODU2e-10v is split into 10 ODU2e and transmission.

Section Point 1120 specifically can be used for, and receives also to separate 10 ODU2e of mapping, obtains the customer data of 10 physical channels of CAUI that 10 0DU2e carry respectively; The customer data of 10 physical channels obtaining is demultiplexed into the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay; The customer data of 20 Virtual Channels after compensating is multiplexed with customer data and the transmission of 10 physical channels of CAUI.

Under another kind of application scenarios, first node 1110 specifically can be used for, and obtains the customer data of 10 physical channels of CAUI; The customer data of 10 physical channels obtaining is mapped to 10 ODU2e and sends.

Section Point 1120 specifically can be used for, and receives also to separate 10 ODU2e of mapping, obtains the customer data of 10 physical channels of CAUI that 10 ODU2e carry respectively; The customer data of 10 physical channels obtaining is demultiplexed into the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay; The customer data of 20 Virtual Channels after compensating is multiplexed with customer data and the transmission of 10 physical channels of CAUI.

Under a kind of application scenarios, first node 1110 can also be used for, and obtains the customer data of 10 separate 10G physical channels; The customer data of 10 physical channels obtaining is mapped to ODUk and sends.

Section Point 1120 can also be used for, and is used for receiving and separates shining upon ODUk, obtains the customer data of 10 separate 10G physical channels of ODUk carrying; The clock information of the customer data of 10 10G physical channels that recover to obtain respectively, and send the customer data of 10 10G physical channels according to the clock information of the customer data of 10 10G physical channels.

Be understandable that, first node 1110 in the present embodiment can be as the node A among the embodiment two to seven, Section Point 1120 in the present embodiment can be as the Node B among the embodiment two to seven, the function of first node 1110 and Section Point 1120 can be according to the method specific implementation among the embodiment two to seven, its specific implementation process can not repeat them here referring to the associated description among the embodiment two to seven.

In addition, also provide another kind of communication system referring to Figure 12, the embodiment of the invention, comprise first node 1210 and Section Point 1220.

Wherein, first node 1210 comprises: receiver module 1211, time-delay acquisition module 1212 and mapping sending module 1213.Section Point 1220 comprises: receive and separate mapping block 1221, compensation of delay module 1222 and sending module 1223.

Receiver module 1211 comprises: data are obtained submodule 12111 and demultiplexing submodule 12112.

Wherein, data are obtained submodule, are used for receiving the customer data of 10 physical channels of CAUI.

Demultiplexing submodule 12112 is used the customer data that the customer data of 10 physical channels of CAUI is demultiplexed into 20 Virtual Channels.

Time-delay acquisition module 1212 is used for detecting alignment character code piece at the customer data of each Virtual Channel, to obtain the delayed data of each Virtual Channel.

Mapping sending module 1213 is used for the customer data of 20 Virtual Channels is carried out the subchannel mapping, and each Virtual Channel data is mapped to 4 time slots of ODU4, and the delayed data of 20 Virtual Channels is mapped to the overhead area of ODU4.

Receive to separate mapping block 1221, be used for receiving and solution maps out the customer data of 20 Virtual Channels of 80 time slots carryings of ODU4, and extract the delayed data of customer data of 20 Virtual Channels of ODU4 overhead area carrying.

Compensation of delay module 1222 is used for and will carries out compensation of delay to the customer data of 20 Virtual Channels according to the delayed data of the customer data of 20 Virtual Channels; The customer data bit that will carry out 20 Virtual Channels behind the compensation of delay is multiplexed with the customer data of 10 physical channels of CAUI.

Sending module 1223 is used for the customer data of 10 physical channels of CAUI that forward delay interval compensating module 1222 bits are multiplexed into.

In addition, also provide another kind of communication system referring to Figure 13, the embodiment of the invention, comprise dispensing device 1310 and receiving system 1320.

Wherein, dispensing device 1310 comprises: receiver module 1311 and mapping sending module 1312.Receiving system 1320 comprises: receive and separate mapping block 1321, compensation of delay module 1322 and sending module 1323.

Receiver module 1311 is for the customer data that receives 10 physical channels of CAUI.

Mapping sending module 1322 is used for the customer data of 10 physical channels of CAUI is mapped to 80 time slots and the transmission of ODU4

Receive to separate mapping block 1321, be used for receiving and solution maps out the customer data of CAUI10 physical channel of the 80 time slots carrying of ODU4.

Compensation of delay module 1322 is used for the customer data of 10 physical channels of CAUI is demultiplexed into the customer data of 20 Virtual Channels, and detects alignment character code piece in the customer data of each Virtual Channel, to obtain the delayed data of each Virtual Channel; According to the delayed data of the customer data of 20 Virtual Channels the customer data of 20 Virtual Channels is carried out compensation of delay; The customer data bit that will carry out 20 Virtual Channels behind the compensation of delay is multiplexed with the customer data of 10 physical channels of CAUI.

Sending module 1323 is used for the customer data of 10 physical channels of CAUI that forward delay interval compensating module 1222 bits are multiplexed into.

In addition, also provide another to transmit the implementation schematic diagram of customer data referring to Figure 14, the embodiment of the invention, each resume module process of transmitting terminal is as follows:

Data reception module receives 100GE CAUI interface data.

Multichannel time-delay monitoring module by 100GE CAUI data are converted to 100GE Virtual Channel data, detect alignment character code piece obtaining the time delay information between each Virtual Channel at each Virtual Channel, and time delay information is sent to mapping block.

Mapping block is converted to 100GE Virtual Channel data with the CAUI interface data and carries out the subchannel mapping, and each Virtual Channel data is mapped to 4 time slots of OPU4.

In addition, also provide another to transmit the implementation schematic diagram of customer data referring to Figure 15, the embodiment of the invention, each resume module process of receiving terminal is as follows:

Separate mapping block, solution maps out the 100GE customer data from ODU4, and extracts time delay information

The compensation of delay module is carried out the 100GE delay compensation according to delay compensation information, and the customer data of Virtual Channel is carried out the multiplexing recovery of bit CAUI interface data

Sending module sends 100GE CAUI interface data.

Need to prove, for aforesaid each method embodiment, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.

In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that describes in detail among certain embodiment, can be referring to the associated description of other embodiment.Above-mentioned each embodiment adds that label is only convenient for citation, there is no the branch of quality.

In sum, in the technical scheme of the embodiment of the invention, the OTN transmitting terminal does not carry out compensation of delay to customer data, and by the OTN receiving terminal customer data is carried out delay compensation, can reject customer data and transmit the delay that may cause at OTN, can improve the transmission reliability of customer data relatively; Reduced simultaneously the complexity that OTN transmitting terminal data are handled relatively; Simplify the processing procedure that customer data transmits on the whole.

One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.

More than a kind of method, equipment and communication system that transmits customer data that the embodiment of the invention is provided be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims

1. a method that transmits customer data is characterized in that, comprising:

Receive Optical Channel Data Unit-k ODUk, and the corresponding solution mapping mode solution mapping ODUk of mapping mode that adopts of employing and transmitting terminal, obtain the customer data of a plurality of passages of ODUk carrying, wherein, k is used for representing kind and the bit rate of ODUk;

Customer data to a plurality of passages of obtaining carries out compensation of delay;

The customer data behind the compensation of delay is carried out in transmission;

Wherein, described customer data to a plurality of passages of obtaining carries out compensation of delay, comprising:

If the customer data of a plurality of passages that obtain is the customer data of a plurality of physical channels, then the customer data of a plurality of physical channels that will obtain demultiplexes into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay;

If the customer data of a plurality of passages that obtain is the customer data of a plurality of Virtual Channels, then obtain the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of obtaining is carried out compensation of delay.

2. method according to claim 1 is characterized in that, specifically comprises:

Receive and separate mapping ODU4, the customer data of 20 Virtual Channels of 80 time slots carryings of acquisition ODU4;

Obtain the delayed data of customer data of 20 Virtual Channels of the overhead area carrying of ODU4 respectively; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay;

The customer data behind the compensation of delay is carried out in transmission.

3. method according to claim 1 is characterized in that, specifically comprises:

Receive and separate mapping ODU4, obtain the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces of ODU4 carrying;

The customer data of 10 physical channels obtaining is demultiplexed into the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay;

4. method according to claim 1 is characterized in that, specifically comprises:

Receive and also to separate 10 ODU2e of mapping, obtain the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces that 10 ODU2e carry respectively;

5. one kind is transmitted the net node, it is characterized in that, comprising:

Receive parsing module, be used for to receive Optical Channel Data Unit-k ODUk, and the corresponding solution mapping mode solution mapping ODUk of mapping mode that adopts of employing and transmitting terminal, obtain the customer data of a plurality of passages that ODUk carries, wherein, k is used for kind and the bit rate of expression ODUk;

The compensation of delay module, when the customer data that is used for a plurality of passages of obtaining at described reception parsing module was the customer data of a plurality of physical channels, the customer data of a plurality of physical channels that described reception parsing module is obtained demultiplexed into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay;

When the customer data of a plurality of passages that obtain at described reception parsing module is the customer data of a plurality of Virtual Channels, obtain the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels that described reception parsing module is obtained carries out compensation of delay;

First sending module is used for sending the customer data after described compensation of delay module is carried out compensation of delay.

6. transmission net node according to claim 5 is characterized in that,

Described reception parsing module specifically is used for, and receives and separate mapping ODU4, the delayed data of the customer data of 20 Virtual Channels of the customer data of 20 Virtual Channels of 80 time slots carryings of acquisition ODU4 and the overhead area carrying of ODU4;

Described compensation of delay module comprises:

The compensation of delay submodule is used for the delayed data of the customer data of 20 Virtual Channels obtaining according to described reception parsing module, and the customer data of 20 Virtual Channels that described reception analyzing sub-module is obtained carries out compensation of delay.

7. transmission net node according to claim 5 is characterized in that,

Described reception parsing module specifically is used for, and receives and separate mapping ODU4, obtains the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces of ODU4 carrying;

Described compensation of delay module comprises:

The demultiplexing submodule, the customer data that is used for 10 physical channels that described reception parsing module is obtained demultiplexes into the customer data of 20 Virtual Channels;

Submodule is obtained in time-delay, and the alignment character code piece in the customer data of 20 Virtual Channels that demultiplex into for detection of described demultiplexing submodule obtains the delayed data of the customer data of 20 Virtual Channels respectively;

Described compensation of delay submodule also is used for, and obtains the delayed data of the customer data of 20 Virtual Channels that submodule obtains according to described time-delay, and the customer data of 20 Virtual Channels obtaining is carried out compensation of delay.

8. transmission net node according to claim 5 is characterized in that,

Described reception parsing module specifically is used for, and receives also to separate 10 ODU2e of mapping, obtains the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces that 10 ODU2e carry respectively;

Described compensation of delay module comprises:

The second compensation of delay submodule is used for obtaining according to described time-delay the delayed data of the customer data of 20 Virtual Channels that submodule obtains, and the customer data of 20 Virtual Channels obtaining is carried out compensation of delay.

9. according to each described transmission net node of claim 6 to 8, it is characterized in that,

Described reception parsing module also is used for, and receives and separate mapping ODUk, obtains the customer data of 10 separate 10G physical channels of ODUk carrying;

Described transmission net node also comprises:

Second sending module, be used for recovering respectively the clock information of the customer data of 10 separate 10G physical channels that described reception parsing module obtains, and send the customer data of 10 10G physical channels according to the clock information of the customer data of 10 separate 10G physical channels.

10. a communication system is characterized in that, comprising:

First node is for the customer data that obtains a plurality of passages; The customer data of a plurality of passages of obtaining is mapped to ODUk and sends, wherein, k is used for kind and the bit rate of expression ODUk;

Section Point be used for to receive ODUk, and the corresponding solution mapping mode solution mapping ODUk of mapping mode that adopts of employing and first node, obtains the customer data of a plurality of physical channels that ODUk carries; The customer data of a plurality of physical channels of obtaining is demultiplexed into the customer data of a plurality of Virtual Channels; Alignment character code piece in the customer data of a plurality of Virtual Channels that detection demultiplexes into obtains the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of demultiplexing into is carried out compensation of delay; The customer data behind the compensation of delay is carried out in transmission; Or

Section Point is used for receiving and separates and shines upon ODUk, obtains the customer data of a plurality of Virtual Channels of ODUk carrying; Obtain the delayed data of the customer data of a plurality of Virtual Channels respectively; According to the delayed data of the customer data of a plurality of Virtual Channels that obtain, the customer data of a plurality of Virtual Channels of obtaining is carried out compensation of delay; The customer data behind the compensation of delay is carried out in transmission.

11. communication system according to claim 10 is characterized in that,

First node specifically is used for, and obtains the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces; The customer data of 10 physical channels obtaining is demultiplexed into the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; The customer data of 20 Virtual Channels is mapped in 80 time slots of ODU4, the delayed data of the customer data of 20 Virtual Channels is mapped to the overhead area of ODU4 and sends.

Section Point specifically is used for, and receives and separate mapping ODU4, the delayed data of the customer data of 20 Virtual Channels of the customer data of 20 Virtual Channels of 80 time slots carryings of acquisition ODU4 and the overhead area carrying of ODU4; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay; The customer data of 20 Virtual Channels after compensating is multiplexed with customer data and the transmission of 10 physical channels of hundred gigabit Attachment Unit Interfaces.

12. communication system according to claim 10 is characterized in that,

First node specifically is used for, and obtains the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces; The customer data of 10 physical channels obtaining is mapped to ODU4 and sends;

Section Point specifically is used for, and receives and separate mapping ODU4, obtains the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces of ODU4 carrying; The customer data of 10 physical channels obtaining is demultiplexed into the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay; The customer data of 20 Virtual Channels after compensating is multiplexed with customer data and the transmission of 10 physical channels of hundred gigabit Attachment Unit Interfaces.

13. communication system according to claim 10 is characterized in that,

First node specifically is used for, and obtains the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces; The customer data of 10 physical channels obtaining is mapped to ODU2e-10v; ODU2e-10v is split into 10 ODU2e and transmission;

Section Point specifically is used for, and receives also to separate 10 ODU2e of mapping, obtains the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces that 10 ODU2e carry respectively; The customer data of 10 physical channels obtaining is demultiplexed into the customer data of 20 Virtual Channels; Detect the alignment character code piece in the customer data of 20 Virtual Channels, obtain the delayed data of the customer data of 20 Virtual Channels respectively; According to the delayed data of the customer data of 20 Virtual Channels that obtain, the customer data of 20 Virtual Channels obtaining is carried out compensation of delay; The customer data of 20 Virtual Channels after compensating is multiplexed with customer data and the transmission of 10 physical channels of hundred gigabit Attachment Unit Interfaces.

14. communication system according to claim 10 is characterized in that,

First node specifically is used for, and obtains the customer data of 10 physical channels of hundred gigabit Attachment Unit Interfaces; The customer data of 10 physical channels obtaining is mapped to 10 ODU2e and sends;