CN101867848B - Transmission method of high-speed data stream and corresponding equipment and system - Google Patents
Transmission method of high-speed data stream and corresponding equipment and system Download PDFInfo
- Publication number
- CN101867848B CN101867848B CN 200910135000 CN200910135000A CN101867848B CN 101867848 B CN101867848 B CN 101867848B CN 200910135000 CN200910135000 CN 200910135000 CN 200910135000 A CN200910135000 A CN 200910135000A CN 101867848 B CN101867848 B CN 101867848B
- Authority
- CN
- China
- Prior art keywords
- signal
- telecommunication
- channel
- virtual channel
- autonomous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Time-Division Multiplex Systems (AREA)
Abstract
The embodiment of the invention discloses a transmission method of a high-speed data stream and corresponding equipment and system. The method comprises the following steps of: receiving an optical signal mapped into an independent channel; converting the optical signal of the independent channel into an electric signal and then multiplexing the electric signal into a virtual channel; aligning by an aligning control block of the virtual channel and multiplexing the aligning control block into an electric signal; and transmitting the multiplexed electric signal to a customer service node. By using the embodiment of the invention, a delaying and aligning step in optical transmission network transmission equipment is simplified, the correctness of data transmission can be ensured by only using one delaying and aligning module, cache resources are saved and the application cost of the system is reduced.
Description
Technical field
The present invention relates to field of data transmission, especially relate to the transmission method of high-speed data-flow and relevant device, system.
Background technology
Develop rapidly along with data service bandwidth, ethernet port speed is from 100M (FE), 1,000M (GE), to 10,000M (10GE), develop into 100,000M (100GE) means that Ethernet will have higher bandwidth, transmission rate and farther transmission range faster.
Optical transport network (OTN, Optical Transport Network) transmits the different wave length channel multiplexing take wavelength-division multiplex technique as the basis in same optical fiber, be the most competitive candidate of follow-on high speed wide area backbone.Optical transport network carries out light signal to be processed in inside, and carries out light signal and signal of telecommunication mixed processing at network boundary, with features such as its large capacity, bulky grain pipe signals, is fit to very much long distance and transmits the 100GE data flow.
Transfer equipment in the prior art optical transport network is as follows for the concrete mode of the transmission of 100GE data flow:
Receive the signal of client's service node to the optical transport network the transmission of data, be called for short the up direction transmission.for example will split into Virtual Channel (VL from the 100GE data flow that router receives, Virtual Lane), each Virtual Channel comprises alignment controll block, with Virtual Channel align demarcation and the alignment of controll block, merge reduction and form the 100GE data flow, be mapped to again optical channel Payload Unit Virtual Concatenation container (OPUk-XV, Optical Channel Payload Unit-k for X times Virtual Concatenation) in, need to insert Virtual Concatenation control character (Virtual Concatenation Control Coding) in OPUk-XV, the alignment compensation that is used for the opposite end, again OPUk-XV is split into X optical channel Payload Unit (OPUk, OpticalChannel Payload Unit-k), through electricity/light conversion (E/O, Electrical Optical Converter) become light signal to send,
Receive the signal of optical transport network to client's service node the transmission of data, when being called for short the down direction transmission.For example the light signal that receives is obtained the signal of telecommunication through light/electric conversion (O/E), solution is encapsulated as Optical Channel Data Unit-k (ODUk again, Optical Channel Data Unit-k), X ODUk solution is encapsulated as X OPUk signal, and the Virtual Concatenation (VCAT by ODUk frame originating point information and extraction, VirtualConcatenation) after control character is completed the alignment compensation of X passage, multiplexing formation OPUk-XV container, demultiplexing goes out original data stream and sends to router from the OPUk-XV container.
In the research and practice process to prior art, the present inventor finds to exist following problem: before when up direction transmits, Virtual Channel being mapped to optical channel Payload Unit container because of prior art, need first to align by alignment controll block, before guaranteeing to shine upon, the Virtual Channel data is complete and correct; When down direction transmits, need to introduce Virtual Concatenation (VCAT, Virtual Concatenation) alignment module and complete the alignment of optical channel Payload Unit OPUk passage, just can obtain correct optical channel Payload Unit Virtual Concatenation OPUk-XV container; That is to say, guarantee the correctness of transfer of data in two time-delay alignment module of the inner needs of optical transport network transfer equipment, and the time-delay alignment module is to take a large amount of cache resources of system.
Summary of the invention
The embodiment of the present invention provides a kind of transmission method of high-speed data-flow and relevant device, system, make the time-delay alignment step of optical transport network transfer equipment inside be simplified, only need a time-delay alignment module just can guarantee the correctness of transfer of data, save cache resources, reduced the system applies cost.
For solving the problems of the technologies described above, embodiment provided by the present invention is achieved through the following technical solutions:
A kind of transmission method of high-speed data-flow:
Reception is mapped to the light signal of autonomous channel;
After the autonomous channel converting optical signals that receives is become the signal of telecommunication, the described signal of telecommunication is demultiplexed into Virtual Channel;
Alignment controll block by Virtual Channel is alignd, then is multiplexed into the signal of telecommunication;
The multiplexing signal of telecommunication that obtains is sent to client's service node.
A kind of transmission equipment of high-speed data-flow comprises:
The first receiving element is used for receiving the light signal that is mapped to the autonomous channel;
The first converter unit is used for the autonomous channel converting optical signals that described the first receiving element receives is become the signal of telecommunication;
The Virtual Channel alignment unit, the signal of telecommunication that is used for described the first converter unit is transformed into demultiplexes into Virtual Channel, and aligns by the alignment controll block in Virtual Channel; Virtual Channel after aliging again is multiplexed into the signal of telecommunication and sends to the first transmitting element;
The first transmitting element, the signal of telecommunication that is used for described Virtual Channel alignment unit is obtained sends to client's service node.
A kind of transmission system of high-speed data-flow comprises several high-speed data-flow transmission equipments and client's service node, wherein,
Client's service node of upstream is for traffic spike being sent to the high-speed data-flow transmission equipment of upstream;
The high-speed data-flow transmission equipment of upstream, after the traffic spike that is used for receiving from client's service node of upstream is transformed into the signal of telecommunication, the signal of telecommunication is mapped to the light signal of autonomous channel, and sends the light signal of autonomous channel to the high-speed data-flow transmission equipment in downstream;
The high-speed data-flow transmission equipment in downstream is used for receiving from the high-speed data-flow transmission equipment of upstream the light signal that is mapped to the autonomous channel, after the autonomous channel converting optical signals that receives is become the signal of telecommunication, the described signal of telecommunication is demultiplexed into Virtual Channel; Alignment controll block by Virtual Channel is alignd, then is multiplexed into the signal of telecommunication; The multiplexing signal of telecommunication that obtains is sent to client's service node in downstream;
Client's service node in downstream is for the signal of telecommunication of the high-speed data-flow transmission equipment transmission that receives the downstream.
Can be found out by technique scheme, after the embodiment of the present invention receives the light signal that is mapped to the autonomous channel and the converting optical signals that receives is become the signal of telecommunication, the described signal of telecommunication is demultiplexed into Virtual Channel, and complete the alignment of Virtual Channel alignment controll block, then send to client's service node after being multiplexed into the signal of telecommunication; Make the time-delay alignment step of optical transport network transfer equipment inside be simplified, only need a time-delay alignment module just can guarantee the correctness of transfer of data, saved cache resources, reduced the system applies cost.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is prior art digital wrapper process schematic diagram;
Fig. 2 is the method flow schematic diagram of the embodiment of the present invention one;
Fig. 3 is the schematic network structure of the embodiment of the present invention one;
Fig. 4 is the method flow schematic diagram of the embodiment of the present invention two;
Fig. 5 is the signal processing schematic diagram of the embodiment of the present invention two;
Fig. 6 is the method flow schematic diagram of the embodiment of the present invention three;
Fig. 7 is the signal processing schematic diagram of the embodiment of the present invention three;
Fig. 8 is the structural representation of embodiment of the present invention transmission equipment;
Fig. 9 is another structural representation of embodiment of the present invention transmission equipment;
Figure 10 is the structural representation of embodiment of the present invention transmission system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
the fixed line speed of the data flow signal of telecommunication after the optical signal transmission equipment optical module (Optics Module) of upstream is processed is 10.3125Gbps, can be described as the CBR10G3125 signal of telecommunication, the CBR10G3125 signal of telecommunication is mapped in the optical channel Payload Unit transmits, then optical channel Payload Unit OPUk is carried out digital wrapper, after forming Optical Channel Data Unit-k ODUk, seal again and form optical channel transmitting element (OTUk, Optical Channel Transport Unit-k), perhaps be multiplexed into the ODUj of high-order more and be encapsulated into OTUj, OTUk or OTUj passage are transformed into light signal through electricity/light and send.
And the optical signal transmission equipment in downstream obtains signal of telecommunication OTUk or high-order OTUj more with the light signal that receives through light/electric conversion, described OTUk solution is encapsulated into ODUk, after perhaps described OTUj solution was encapsulated into and is demultiplexed into ODUk again after ODUj, X ODUk solution carried out subsequent treatment after being encapsulated into X OPUk container again.
The digital wrapper process can be referring to Fig. 1.OPUk is used for carrying various client signals, and ODUk is end-to-end supervision and the management particle in optical transport network, is the passage of realizing end-to-end supervision and management in optical transport network, and OTUk is the transmitting line passage.
The frame of optical channel transmitting element passage is provided for the overhead byte runing, manage, monitor at head, and provides forward error correction (FEC) byte at postamble, and middle 17 to 3824 classify the optical channel Payload Unit container that carrying transmits signal as.
It is below the specific embodiment of the invention.
Embodiment one, describe in detail referring to Fig. 2, Fig. 2 is the method flow schematic diagram of the present embodiment.
Step 101: receive the light signal that is mapped to the autonomous channel;
Step 102: after the autonomous channel converting optical signals that receives is become the signal of telecommunication, the described signal of telecommunication is demultiplexed into Virtual Channel;
Step 103: the alignment controll block by Virtual Channel is alignd, then is multiplexed into the signal of telecommunication;
Step 104: the multiplexing signal of telecommunication that obtains is sent to client's service node.
after the optical signal transmission equipment in downstream becomes the optical channel transmitting element signal of telecommunication with the autonomous channel converting optical signals that receives, this optical channel transmitting element signal of telecommunication solution is encapsulated as Optical Channel Data Unit-k, solution is encapsulated as independently optical channel Payload Unit again, demultiplexing goes out the CBR10G3125 signal of telecommunication of autonomous channel from optical channel Payload Unit independently, after the CBR10G3125 signal of telecommunication difference demultiplexing of autonomous channel, obtain Virtual Channel, alignment controll block by Virtual Channel is alignd, carry out again the independently CBR10G3125 signal of telecommunication of the multiplexing formation of bit, last CBR10G3125 converting electrical signal is the client's service node that sends to the downstream after light signal.
Independently the optical channel Payload Unit is for optical channel Payload Unit Virtual Concatenation container (OPUk-XV) in prior art, in the prior art namely, need a plurality of optical channel Payload Unit are encased in a Virtual Concatenation container to send, the embodiment of the present invention utilizes the autonomous channel that each optical channel Payload Unit is sent separately.
The alignment controll block of Virtual Channel is alignd similar with prior art, repeats no more.
Client's service node can be router, switch or other node devices, does not affect the realization of the embodiment of the present invention.
The network configuration of the embodiment of the present invention can be referring to Fig. 3, and signal can be successively arrives client's service node in downstream through the optical signal transmission equipment in the optical signal transmission equipment of client's service node of upstream, upstream, optical transport network, downstream.
The above embodiment of the present invention has been set forth the high-speed data-flow transmission method of down direction, is below the high-speed data-flow transmission method of up direction, and high-speed data-flow can refer to the 100GE data flow:
From client's service node receiving data stream signal;
The traffic spike that receives is transformed into the signal of telecommunication;
The signal of telecommunication is mapped to the light signal of autonomous channel;
Send the light signal of autonomous channel.
Traffic spike is mapped to the process of light signal such as aforementioned.The optical signal transmission equipment of upstream first is mapped to the OPUk container with the data flow signal of telecommunication, then each OPUk container is encapsulated as independently ODUk, and being encapsulated as each ODUk independently at last, the optical channel transmitting element sends.
The signal of telecommunication that the optical signal transmission equipment demultiplexing in downstream obtains is identical with the signal structure of the data flow signal of telecommunication that the optical signal transmission equipment of upstream receives, be the CBR10G3125 signal of telecommunication, just owing to having passed through the transmission that OTN transmits network, do not line up between signal.This not lining up also can be reflected on the Virtual Channel that this signal of telecommunication bit demultiplexing obtains, therefore, alignment controll block by Virtual Channel is delimited and alignment operation, and then the multiplexing signal of telecommunication that obtains of bit alignd, the signal that the data flow signal of telecommunication that namely receives with the optical signal transmission equipment of upstream is consistent.Send to client's service node namely to complete the transmission of high-speed data-flow in optical transport network the signal after alignment.
The embodiment of the present invention is not carried out demarcation and the alignment of Virtual Channel at up direction when transmitting high speed data flows, also do not carry out the alignment of optical channel Payload Unit container at down direction; But after receiving optical signals being transformed into the optical channel transmitting element signal of telecommunication at down direction, seal through solution again and form Optical Channel Data Unit-k and optical channel Payload Unit, conversion obtains the CBR10G3125 signal of telecommunication again, demultiplex into Virtual Channel, and complete in Virtual Channel the alignment of alignment controll block, the transmission delay difference that causes when eliminating transmission.
The present invention is described in detail from the transmission of up direction and down direction respectively for following examples two and three.The signal that up direction namely receives client's service node sends to optical transport network, and the signal that down direction namely receives optical transport network sends to client's service node.High-speed data-flow is take the 100GE data flow as example.
Embodiment two, describe in detail referring to Fig. 4, Fig. 4 is the method flow schematic diagram of the present embodiment.
Step 201: receive and the 100GE traffic spike is carried out light/electric conversion from client's service node, obtaining 10 road CBR10G3125 signals of telecommunication.
The 100GE optical module of optical signal transmission equipment (Optics Module), provide the 100GE optical interface to receive the 100GE traffic spike from client's service node, and by light/electric conversion provide 10 road CBR10G3125 signals of telecommunication and other modules interconnected, interconnecting interface can be described as 100Gb/s extra cell interface (CAUI, 100Gb/s Attachment Unit Interface).
Step 202: 10 road CBR10G3125 signals of telecommunication are mapped to 10 OPUk containers.
10 road CBR10G3125 signals of telecommunication are shone upon respectively, and mapping can be adopted the bit synchronous mode.The OPUk container can be the OPU2e container.
Step 203: complete the overhead processing of OPUk/ODUk particle, seal and form independently ODUk passage.
Namely each OPUk container is carried out digital wrapper, increase ODUk frame head and ODUk expense etc. before the OPUk container, form independently ODUk passage.
The ODUk passage can be encapsulated into OTUk, perhaps the ODUk passage is carried out multiplexing after, be mapped to the N road more after the OPUj of high-order again and be encapsulated into ODUj and OTUj (N=4, j=3 or N=1, j=4), completing the insertion of OTUk expense or OTUj/ODUj/OPUj expense inserts.
Sealing is namely that client signal is shone upon into sealing in defined frame format, adds associated overhead, and passes through Internet Transmission.It is opposite mode that solution is sealed, and through under the signal solution of sealing and transmitting, processes expense wherein, to complete correlation function in network.Transmit in optical fiber simultaneously through the multiplexing different wave length that can make, improve efficiency of transmission.
Step 204: complete the electricity of OTUk or OTUj passage/light conversion, send to optical transport network from optical module.
The signal processing of embodiment two can be as shown in Figure 5.Can be before the ODUk passage be encapsulated into OTUk, the ODUk passage is multiplexed into the N road more is encapsulated into again ODUj and OTUj after the OPUj of high-order.
Prior art is before the 100GE data flow is mapped to OPUk-10V, the Virtual Channel that 100GE data flow demultiplexing is generated align demarcation and the alignment of controll block, the multiplexing 100GE data flow that recovers again, be mapped to afterwards OPUk-10V, OPUk-10V is carried out sending to optical transport network after overhead processing.The embodiment of the present invention has been described the signal transmission flow of up direction, and the signal that will not carry out the Virtual Channel alignment sends to optical transport network, simple flow.
Embodiment three, describe in detail referring to Fig. 6, Fig. 6 is the method flow schematic diagram of the present embodiment.
Step 301: receive independently OTUk from optical transport network, receive perhaps more that the OTUj passage of high-order carries out light/electric conversion, obtain 10 tunnel independently the OTUk signal of telecommunication or the N road OTUj signals of telecommunication (N=4, j=3 or N=1, j=4).
Step 302: demultiplexing obtains 10 tunnel ODUk independently.
Step 303: obtain 10 tunnel OPUk independently.
After completing the overhead processing of OPUk/ODUk, obtain 10 tunnel OPUk independently.
Step 304: 10 road OPUk are carried out demultiplexing, obtain 10 road CBR10G3125 signals of telecommunication.
The step 305:10 road CBR10G3125 signal of telecommunication demultiplexes into 20 road Virtual Channel signals.
Can 10 road CBR10G3125 signals of telecommunication be demultiplexed into 20 road Virtual Channel signals by 10 1: 2 bit demultiplexing (Demultiplexer) modules.
The OTUk electrical signal is 10 the tunnel, and the OTUj signal of telecommunication may be that 4 the tunnel or 1 the tunnel, 20 is least common multiples of 1,4,10, therefore, demultiplexes into 20 road Virtual Channel signals.
Step 306: insert alignment controll block and align in the Virtual Channel signal.
Corresponding 1 the alignment controll block of the every 16K 66B of every Virtual Channel piece in 20 road Virtual Channel signals, alignment is delimited and compensated to alignment controll block, and compensation transmits the delay variance of introducing due to circuit.
Step 307: the Virtual Channel signal multiplexing after the controll block of aliging alignment becomes 10 road CBR10G3125 signals of telecommunication.
Can the Virtual Channel signal bit be multiplexed into 10 road CBR10G3125 signals of telecommunication through 10 2: 1 bits multiplexing (Mux) module.
Step 308: send after changing through electricity/light.
10 road CBR10G3125 signals of telecommunication are delivered to optical module by the CAUI interface, send to client's service node through after electricity/light conversion.
The signal processing of embodiment three can be as shown in Figure 7.Can be when receiving the OTUj passage, after first carrying out the overhead processing of ODUj passage and OPUj, then solution is encapsulated into N road OPUj.
Prior art is in OTN network transport process, adopted the technology of Virtual Concatenation that the 100GE traffic spike is mapped to the OPUk-10V container, the OPUk-10V container being processed into 10 ODUk passages sends again, owing to inevitably can introduce 10 delay differences between the ODUk passage in the OTN transport process, causing between 10 passages can not complete matching, and therefore need to introduce a Virtual Concatenation control character alignment module at down direction completes alignment function; Only have between 10 passages could obtain correct OPUk-10V container after alignment, could go out correct 100GE data flow by demultiplexing from the OPUk-10V container.
The embodiment of the present invention be from OPUk passage independently demultiplexing go out 10 road CBR10G3125 data flow or from the OPUj passage of high-order more demultiplexing go out ODUk and OPUk, demultiplexing goes out 10 road CBR10G3125 data flow afterwards, demultiplexing 10 road CBR10G3125 become Virtual Channel again, delimit and the Virtual Channel alignment by the alignment controll block of Virtual Channel, make up the delay difference that the optical transport network transmission is introduced.
Need to prove, for aforesaid each embodiment of the method, for simple description, therefore 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 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, there is no the part that describes in detail in certain embodiment, can be referring to the associated description of other embodiment.
A kind of transmission method of high-speed data-flow more than is provided, and the embodiment of the present invention also provides a kind of transmission equipment of high-speed data-flow.
The transmission equipment when transmission equipment 10 of following high-speed data-flow transmits for down direction, the transmission equipment when transmission equipment 20 of high-speed data-flow transmits for up direction, in actual applications, transmission equipment 10 and transmission equipment 20 are integrated on an entity device usually.
A kind of transmission equipment 10 of high-speed data-flow, referring to Fig. 8, Fig. 8 is the structural representation of embodiment of the present invention transmission equipment, comprising:
The first receiving element 11 is used for receiving the light signal that is mapped to the autonomous channel; Independently the optical channel Payload Unit is for optical channel Payload Unit Virtual Concatenation container (OPUk-XV) in prior art, in the prior art namely, need a plurality of optical channel Payload Unit are encased in a Virtual Concatenation container to send, the embodiment of the present invention sends each optical channel Payload Unit separately.High-speed data-flow can refer to the 100GE data flow.
The first converter unit 12 is used for the autonomous channel converting optical signals that the first receiving element 11 receives is become the signal of telecommunication;
Virtual Channel alignment unit 13, the signal of telecommunication that is used for described the first converter unit 12 is transformed into demultiplexes into Virtual Channel, and aligns by the alignment controll block in Virtual Channel; Virtual Channel after aliging again is multiplexed into the signal of telecommunication and sends to the first transmitting element 14; Demultiplexing can adopt bit demultiplexing mode, adopts 1: 2 ratio that 10 road signals of telecommunication are demultiplexed into 20 road Virtual Channels; The multiplexing bit multiplex mode that adopts can adopt 2: 1 ratios that 20 road Virtual Channels are multiplexed into 10 road signals of telecommunication.
The first transmitting element 14, the signal of telecommunication that is used for described Virtual Channel alignment unit 13 is obtained sends to client's service node.
And the first converter unit 12 also can be used for the autonomous channel converting optical signals that the first receiving element 11 receives is become the signal of telecommunication; The autonomous channel converting optical signals that receives is become N road optical channel transmitting element OTUj, and N is 4 o'clock, j be 3 or N be 1 o'clock, j is 4.
13 of Virtual Channel alignment unit are become described the first converter unit 12 by converting optical signals the N road signal of telecommunication demultiplexes into Virtual Channel, and aligns by the alignment controll block in Virtual Channel; The signal of telecommunication that Virtual Channel after aliging again is multiplexed into high-order sends to the first transmitting element 14;
The first transmitting element 14 also can be used for sending the autonomous channel light signal of high-order.
Virtual Channel alignment unit 13 can specifically comprise:
Demultiplexing unit is used for the signal of telecommunication is split into the Virtual Channel signal;
Alignment controll block is delimited and alignment unit, is used for splitting the Virtual Channel signal that obtains align demarcation and the alignment of controll block at demultiplexing unit;
Multiplexing Unit, the Virtual Channel signal bit that obtains after controll block is delimited and alignment unit alignment controll block is alignd that is used for aliging is multiplexed into the signal of telecommunication.
during the down direction transmission, the first receiving element 11 receives and is mapped to the light signal of autonomous channel or more after the light signal of high-order, the autonomous channel light signal that the first converter unit 12 receives the first receiving element 11 or more the converting optical signals of high-order become the signal of telecommunication, Virtual Channel alignment unit 13 demultiplexes into Virtual Channel with the signal of telecommunication that the first converter unit 12 is transformed into, and delimiting and aliging by the alignment controll block in Virtual Channel, Virtual Channel after the controll block of aliging again alignment is multiplexed into the signal of telecommunication and sends to the first transmitting element 14, the converting electrical signal that the first transmitting element 14 obtains Virtual Channel alignment unit 13 becomes the data flow light signal to send to client's service node.
A kind of transmission equipment 20 of high-speed data-flow, referring to Fig. 9, Fig. 9 is another structural representation of embodiment of the present invention transmission equipment, comprising:
The second receiving element 21 is used for from client's service node receiving data stream signal of telecommunication;
Unit, autonomous channel 22 is used for the data flow signal of telecommunication that the second receiving element 21 receives is mapped to the light signal of autonomous channel; Perhaps can be mapped to the more autonomous channel light signal of high-order; After also can be used for the signal of telecommunication is mapped to the OPU container, then each OPU container is encapsulated as independently ODU passage light signal.
The second transmitting element 23 is used for sending the light signal that unit, autonomous channel 23 obtains.
During the up direction transmission, the second receiving element 21 is after client's service node receiving data stream signal of telecommunication, unit, autonomous channel 22 is mapped to the autonomous channel light signal with the traffic spike that the second receiving element 21 receives, after perhaps being mapped to the autonomous channel light signal of high-order more, send to the second transmitting element 23, the second transmitting elements 23 that the light signal that unit, autonomous channel 22 obtains is sent.
A kind of transmission system 30 of high-speed data-flow, referring to Figure 10, Figure 10 is the structural representation of embodiment of the present invention transmission system, comprises several high-speed data-flow transmission equipments and client's service node, wherein,
Client's service node 31 of upstream is for traffic spike being sent to the high-speed data-flow transmission equipment of upstream;
The high-speed data-flow transmission equipment 32 of upstream, after the traffic spike that is used for receiving from client's service node 31 of upstream is transformed into the signal of telecommunication, the signal of telecommunication is mapped to the light signal of autonomous channel, and sends the light signal of autonomous channel to the high-speed data-flow transmission equipment 33 in downstream;
The high-speed data-flow transmission equipment 33 in downstream is used for receiving from the high-speed data-flow transmission equipment 32 of upstream the light signal that is mapped to the autonomous channel, after the autonomous channel converting optical signals that receives is become the signal of telecommunication, the described signal of telecommunication is demultiplexed into Virtual Channel; Alignment controll block by Virtual Channel is alignd, then is multiplexed into the signal of telecommunication; The multiplexing signal of telecommunication that obtains is sent to client's service node 34 in downstream;
Client's service node 34 in downstream is for the signal of telecommunication of the high-speed data-flow transmission equipment transmission that receives the downstream.
The concrete structure of the high-speed data-flow transmission equipment 32 of upstream and the high-speed data-flow transmission equipment 33 in downstream can be referring to the structure of the transmission equipment 10 of the transmission equipment 20 of aforementioned a kind of high-speed data-flow and high-speed data-flow.
The transmission equipment of embodiment of the present invention high-speed data-flow penetrates into the signal bit demultiplexing that receives at Virtual Channel when down direction, complete demarcation and the alignment of alignment controll block, bit sends after being multiplexed into the signal of telecommunication again, make the time-delay alignment step of optical transport network transfer equipment inside be simplified, only need a time-delay alignment module just can guarantee the correctness of transfer of data, save cache resources, reduced the system applies cost.
The modules of embodiment of the present invention equipment can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
One of ordinary skill in the art will appreciate that, realize all or part of flow process in above-described embodiment method, to come the relevant hardware of instruction to complete by computer program, program can be stored in a computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Transmission method and the equipment of above a kind of 100GE data flow that the embodiment of the present invention is provided are 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, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. the transmission method of a high-speed data-flow, is characterized in that,
Reception is mapped to the light signal of autonomous channel;
After the autonomous channel converting optical signals that receives is become the signal of telecommunication, the described signal of telecommunication is demultiplexed into Virtual Channel;
Alignment controll block by Virtual Channel is alignd, then is multiplexed into the signal of telecommunication;
The multiplexing signal of telecommunication that obtains is sent to client's service node;
The light signal that reception is mapped to the autonomous channel also comprises before:
From client's service node receiving data stream signal;
The traffic spike that receives is transformed into the signal of telecommunication;
The signal of telecommunication is mapped to the light signal of autonomous channel;
Send the light signal of autonomous channel.
2. transmission method according to claim 1, is characterized in that, the described light signal that the signal of telecommunication is mapped to the autonomous channel specifically comprises:
The signal of telecommunication is mapped to the optical channel Payload Unit;
Each optical channel Payload Unit is encapsulated as independently Optical Channel Data Unit-k.
3. transmission method according to claim 1, is characterized in that, specifically comprises:
Reception is mapped to the light signal of autonomous channel;
The autonomous channel light signal that receives is demultiplexed into the CBR10G3125 signal of telecommunication;
The CBR10G3125 signal of telecommunication is demultiplexed into the Virtual Channel signal;
Alignment controll block in the Virtual Channel signal is alignd, then the Virtual Channel signal multiplexing after aliging becomes the CBR10G3125 signal of telecommunication.
4. transmission method according to claim 3, is characterized in that, specifically comprises:
Reception is mapped to the light signal of 10 tunnel autonomous channels;
10 tunnel autonomous channel light signals that receive are demultiplexed into 10 road CBR10G3125 signals of telecommunication;
10 road CBR10G3125 signals of telecommunication are demultiplexed into 20 road Virtual Channel signals, and demultiplexing adopts 1:2 bit demultiplexing mode;
Alignment controll block in the Virtual Channel signal is alignd;
20 road Virtual Channel signal multiplexings after alignment are become 10 road CBR10G3125 signals of telecommunication, adopt 2:1 bit multiplex mode.
5. transmission method according to claim 1, is characterized in that, described autonomous channel converting optical signals with reception becomes the signal of telecommunication specifically to comprise:
The autonomous channel converting optical signals that receives is become N road optical channel transmitting element OTUj, and N is 4 o'clock, j be 3 or N be 1 o'clock, j is 4.
6. the transmission equipment of a high-speed data-flow, is characterized in that, comprising:
The first receiving element is used for receiving the light signal that is mapped to the autonomous channel;
The first converter unit is used for the autonomous channel converting optical signals that described the first receiving element receives is become the signal of telecommunication;
The Virtual Channel alignment unit, the signal of telecommunication that is used for described the first converter unit is transformed into demultiplexes into Virtual Channel, and aligns by the alignment controll block in Virtual Channel; Virtual Channel after aliging again is multiplexed into the signal of telecommunication and sends to the first transmitting element;
The first transmitting element, the signal of telecommunication that is used for described Virtual Channel alignment unit is obtained sends to client's service node;
Also comprise:
The second receiving element is used for from client's service node receiving data stream signal of telecommunication;
The unit, autonomous channel is used for the data flow signal of telecommunication that the second receiving element receives is mapped to the light signal of autonomous channel;
The second transmitting element is used for sending the light signal that the unit, autonomous channel obtains.
7. transmission equipment according to claim 6, is characterized in that, described Virtual Channel alignment unit specifically is used for:
The signal of telecommunication that described the first converter unit is transformed into adopts 1:2 bit demultiplexing mode to demultiplex into Virtual Channel, and aligns by the alignment controll block in Virtual Channel; Virtual Channel after aliging again adopts 2:1 bit multiplex mode to be multiplexed into the signal of telecommunication, sends to the first transmitting element.
8. transmission equipment according to claim 6, is characterized in that, the autonomous channel converting optical signals that the first converter unit is used for receiving becomes N road optical channel transmitting element OTUj, and N is 4 o'clock, j be 3 or N be 1 o'clock, j is 4.
9. the transmission system of a high-speed data-flow, is characterized in that, comprises several high-speed data-flow transmission equipments and client's service node, wherein,
Client's service node of upstream is for traffic spike being sent to the high-speed data-flow transmission equipment of upstream;
The high-speed data-flow transmission equipment of upstream, after the traffic spike that is used for receiving from client's service node of upstream is transformed into the signal of telecommunication, the signal of telecommunication is mapped to the light signal of autonomous channel, and sends the light signal of autonomous channel to the high-speed data-flow transmission equipment in downstream;
The high-speed data-flow transmission equipment in downstream is used for receiving from the high-speed data-flow transmission equipment of upstream the light signal that is mapped to the autonomous channel, after the autonomous channel converting optical signals that receives is become the signal of telecommunication, the described signal of telecommunication is demultiplexed into Virtual Channel; Alignment controll block by Virtual Channel is alignd, then is multiplexed into the signal of telecommunication; The multiplexing signal of telecommunication that obtains is sent to client's service node in downstream;
Client's service node in downstream is for the signal of telecommunication of the high-speed data-flow transmission equipment transmission that receives the downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910135000 CN101867848B (en) | 2009-04-20 | 2009-04-20 | Transmission method of high-speed data stream and corresponding equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910135000 CN101867848B (en) | 2009-04-20 | 2009-04-20 | Transmission method of high-speed data stream and corresponding equipment and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101867848A CN101867848A (en) | 2010-10-20 |
| CN101867848B true CN101867848B (en) | 2013-06-05 |
Family
ID=42959362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910135000 Active CN101867848B (en) | 2009-04-20 | 2009-04-20 | Transmission method of high-speed data stream and corresponding equipment and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101867848B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394823B (en) * | 2011-11-03 | 2017-10-27 | 中兴通讯股份有限公司 | A kind of method and device of Multi-channel aligning de-bias |
| CN103595515B (en) * | 2012-08-13 | 2018-08-31 | 中兴通讯股份有限公司 | The data mapping method and device of optical transfer network |
| CN117201970A (en) * | 2022-05-30 | 2023-12-08 | 中兴通讯股份有限公司 | Data transmission method, optical line terminal, optical network unit, and readable medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1747606A (en) * | 2004-09-09 | 2006-03-15 | 华为技术有限公司 | Service data transmission and apparatus thereof |
| CN101374030A (en) * | 2007-08-24 | 2009-02-25 | 华为技术有限公司 | Synchronizing system and method for virtual cascade of light transportation network |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7869712B2 (en) * | 2006-12-05 | 2011-01-11 | Electronics And Telecommunications Research Institute | Method and apparatus for increasing transmission capacity in optical transport network |
| US8457159B2 (en) * | 2007-05-11 | 2013-06-04 | Ciena Corporation | Optical transport network hierarchy for full transparent transport of datacom and telecom signals |
-
2009
- 2009-04-20 CN CN 200910135000 patent/CN101867848B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1747606A (en) * | 2004-09-09 | 2006-03-15 | 华为技术有限公司 | Service data transmission and apparatus thereof |
| CN101374030A (en) * | 2007-08-24 | 2009-02-25 | 华为技术有限公司 | Synchronizing system and method for virtual cascade of light transportation network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101867848A (en) | 2010-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102439995B (en) | Method and device for transmitting ultra high-speed Ethernet service | |
| EP2228930B1 (en) | Frame generating apparatus and frame generating method | |
| CN103891222B (en) | To the adjusted size of method and device of existing business stream in optical transport network | |
| WO2018001280A1 (en) | Method for transporting client signal in optical transport network, and transport device | |
| CN101155006B (en) | Method and apparatus for fixed velocity service transmission | |
| CN102783178B (en) | A kind of data processing method of optical transfer network, relevant device and system | |
| US8687655B2 (en) | Signal demultiplexer, signal multiplexer, and signal multiplexer/demultiplexer | |
| EP2552122B1 (en) | Method for Establishing End-To-End Service in an Optical Transport Network | |
| CN101615967A (en) | A kind of sending, receiving method of business datum, device and system | |
| WO2018014342A1 (en) | Multi-channel service transporting and receiving method and device | |
| US8238365B2 (en) | Method and device for supporting optical transmission network service dispatch in optical synchronization network | |
| CN105308885B (en) | Optic communication cross connection device and its signal processing method | |
| CN101945307A (en) | Distribution treatment method of labels in optical network, optical communication device and optical communication system | |
| CN101340735B (en) | Apparatus, method and system for signal gathering and degathering | |
| US8780897B2 (en) | Cross-connect system and cross-connect method | |
| CN103997387A (en) | Data mapping, multiplexing, de-multiplexing and de-mapping method and apparatus | |
| CN104871462A (en) | Method and apparatus for transmitting signals in an optical transport network | |
| CN103997388B (en) | Mapping, de-mapping method and the device of data | |
| CN101867848B (en) | Transmission method of high-speed data stream and corresponding equipment and system | |
| CN101547057A (en) | Method and device for processing services in optical transfer network | |
| Ohara et al. | OTN technology for multi-flow optical transponder in elastic 400G/1T transmission era | |
| CN101674145B (en) | Data transmission method and apparatus thereof | |
| CN101686416A (en) | Method, device and network system for transporting optical transport unit (OTU) by optical transport network (OTN) | |
| CN103780327A (en) | Data transmission method and apparatus | |
| CN101981831B (en) | Method, device and communication system of transmitting client data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210806 Address after: 310018 room 1528, building 6, zhongshajinzuo, No. 228, Shangsha Road, Hangzhou Economic and Technological Development Zone, Zhejiang Province Patentee after: Hangzhou Weiyuan Network Technology Co.,Ltd. Address before: 215010 room 704, building 5, No. 556, Changjiang Road, high tech Zone, Suzhou, Jiangsu Patentee before: SUZHOU YUDESHUI ELECTRICAL TECHNOLOGY Co.,Ltd. Effective date of registration: 20210806 Address after: 215010 room 704, building 5, No. 556, Changjiang Road, high tech Zone, Suzhou, Jiangsu Patentee after: SUZHOU YUDESHUI ELECTRICAL TECHNOLOGY Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
|
| TR01 | Transfer of patent right |