CN100568841C - A kind of converging device of Ethernet service and method - Google Patents
A kind of converging device of Ethernet service and method Download PDFInfo
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- CN100568841C CN100568841C CNB2007100994642A CN200710099464A CN100568841C CN 100568841 C CN100568841 C CN 100568841C CN B2007100994642 A CNB2007100994642 A CN B2007100994642A CN 200710099464 A CN200710099464 A CN 200710099464A CN 100568841 C CN100568841 C CN 100568841C
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Abstract
The invention discloses a kind of converging device of Ethernet service, comprising: some branch road processing units, be used for to multichannel Ethernet tributary signal carry out coding/decoding and become/separate frame; Some buffer units are used to finish the buffer memory of multichannel Ethernet data; Multiplexing and demultiplexing unit is used for multichannel Ethernet data multiplex/demultiplex and mapping/separate mapping; Group's road processing unit is used for that Ethernet data carries out and the conversion of serial/parallel string, and carries out coding/decoding and becomes/separate frame.The present invention also correspondingly provides a kind of assemblage method of Ethernet service, and it comprises and converges step and/or separate and converge step.The present invention is by branch road processing unit, buffer unit, multiplexing and demultiplexing unit, group road processing unit, realized efficiently that converging of Ethernet service conciliate and converged, its structure and handle level simple, greatly reduce technical complexity, and the present invention has, and cost is low, the advantage of good reliability, is fit to large-scale application.
Description
Technical field
The present invention relates to field of communication transmission, relate in particular to a kind of converging device and method of Ethernet service.
Background technology
At present, the Ethernet service that inserts along with transmission equipment sharply increases, and transmission equipment is required also more and more higher, especially requires transmission equipment to have many clients service port, aggregate capabilities and low-cost advantage efficiently.A kind of Ethernet service converging device that prior art provides as shown in Figure 1, comprise: light/electricity and electricity/light converter unit 101, branch road processing unit 102, data encapsulation unit 103, virtual container mapping (VCMap) unit 104, SDH/SONET framer (Synchronous Digital Hierarchy/Synchronous Optical Network Framer, SDH (Synchronous Digital Hierarchy) row/synchronizable optical transmission network framer) 105, parallel series and staticizer (SERializer/DESerializer, Serdes) 106 and optical module 107.Its convergence processing process is as follows: with Ethernet service is that the branch road light signal accesses to this too network service converging device, change unit 101 and convert thereof into the signal of telecommunication by light/electricity and electricity/light dress, carrying out respective coding by branch road processing unit 102 again handles, be sent to data encapsulation unit 103 then and carry out Generic Framing Procedure (Generic Framing Procedure, GFP) or High-Level Data Link Control (High-Level Data LinkControl, protocol encapsulation such as HDLC), and this encapsulation of data frame is mapped to the virtual container map unit 104 of SDH, then carrying out framing by SDH/SONET framer 105 handles, carry out and string manipulation via parallel series and staticizer 106 again, handle and send group road light signal via optical module 107 at last.And the process of converging of separating of Ethernet service is the above-mentioned inverse process that converges process.
The defective that prior art exists has: need converge Ethernet service and carry out the multilayer processing, foregoing GFP/HDLC encapsulation, virtual container mapping and processing, the processing of SDH framing etc., this apparatus structure level complexity, and it is more to handle level, cost is higher relatively, be unfavorable for large-scale promotion and application, so be necessary to be improved.
Summary of the invention
At above-mentioned defective, first purpose of the present invention is to provide a kind of converging device of Ethernet service, and this apparatus structure level is simple and cost is low, is fit to large-scale the application.
Second purpose of the present invention is to provide a kind of assemblage method of Ethernet service, and this method processing level is simple and cost is low, is fit to large-scale the application.
In order to realize above-mentioned first purpose, the invention provides a kind of converging device of Ethernet service, comprising:
Some branch road processing units, be used for converging direction to the multichannel Ethernet tributary signal reconciliation frame of decoding, to form the multichannel Ethernet data and to write buffer unit, perhaps converge direction the multichannel Ethernet data from buffer unit is encoded and framing separating, to form multichannel Ethernet tributary signal;
Some buffer units are used to finish the buffer memory of described multichannel Ethernet data;
Multiplexing and demultiplexing unit, be used in that to converge direction will be from the multichannel Ethernet data of this buffer unit multiplexing and be mapped as one road Ethernet data, perhaps converge direction and this one road Ethernet data demultiplexing is conciliate be mapped as the multichannel Ethernet data separating, and write described buffer unit;
Group road processing unit, be used for converging direction to road Ethernet data and string conversion from multiplexing and demultiplexing unit, and encode and framing to form the Ethernet group signals, perhaps converge direction and the Ethernet group signals is gone here and there and change separating, and decode and conciliate frame and after forming one road Ethernet data, send to described multiplexing and demultiplexing unit.
According to converging device of the present invention, further comprise:
Some branch road photoelectric conversion units, be used for converging direction reception multichannel Ethernet branch road light signal, and formation multichannel Ethernet tributary signal sends to described branch road processing unit after carrying out light-to-current inversion, perhaps converge on the direction and will carry out electro-optical conversion separating, and form multichannel Ethernet branch road light signal and send from the multichannel Ethernet tributary signal of described branch road processing unit;
Group road optical module, be used for to carry out electro-optical conversion from the Ethernet group signals of described group road processing unit converging direction, forming Ethernet group road light signal sends, perhaps converge direction and receive Ethernet group road light signal separating, and carry out forming the Ethernet group signals after the light-to-current inversion and send to described group road processing unit.
According to converging device of the present invention, described branch road processing unit is to multichannel Ethernet tributary signal or the multichannel Ethernet data carries out Physical Coding Sublayer and the medium access control is handled.
According to converging device of the present invention, described buffer unit is the first in first out buffer unit, is used to finish the interface conversion and/or the rate-matched at formation two ends; And/or
Described multiplexing and demultiplexing unit is time division multiplexing and demultiplexing unit.
According to converging device of the present invention, described branch road processing unit is converging direction, and the multichannel Ethernet data all is divided into the plurality of data section, and each data segment is added that packet header and bag tail write described first in first out buffer unit to form data message.
According to converging device of the present invention, described time division multiplexing and demultiplexing unit carry out poll to the data in each first in first out buffer unit by timeslice converging direction, and can distribute corresponding time slot according to the difference of branch road bandwidth, and described time slot position immobilizes.
According to converging device of the present invention, described time division multiplexing and demultiplexing unit are converging direction according to the time slot of having distributed, data in this first in first out buffer unit are carried out poll, if do not have data in the first in first out buffer unit, its corresponding distributed time slot content is empty; If the described data message form of data fit in the first in first out buffer unit then reads it and write in the corresponding distributed time slot.
According to converging device of the present invention, described group road processing unit also is used for handling carrying out scrambler from multiplexing and one road Ethernet data demultiplexing unit converging direction, perhaps converges direction and the Ethernet group signals is carried out descrambling code handles separating.
In order to realize above-mentioned second purpose, the invention provides a kind of assemblage method of Ethernet service, comprise and converge step and/or separate and converge step that the described step that converges comprises:
(A) to the multichannel Ethernet tributary signal reconciliation frame of decoding, to form the multichannel Ethernet data;
(B) described multichannel Ethernet data is carried out buffer memory;
(C) the multichannel Ethernet data that is buffered is multiplexing and be mapped as one road Ethernet data;
(D) with described one road Ethernet data and string conversion, and encode and framing to form the Ethernet group signals;
Described separating converged step and comprised:
(a), and decode and conciliate frame to form one road Ethernet data to Ethernet group signals string and conversion;
(b) described one road Ethernet data demultiplexing reconciliation is mapped as the multichannel Ethernet data;
(c) described multichannel Ethernet data is carried out buffer memory;
(d) the multichannel Ethernet data that is buffered is encoded and framing, to form multichannel Ethernet tributary signal.
According to assemblage method of the present invention, described converging in the step:
Also comprise before the steps A receiving multichannel Ethernet branch road light signal, and carry out forming multichannel Ethernet tributary signal after the light-to-current inversion;
Also comprise after the step D described Ethernet group signals is carried out electro-optical conversion, form Ethernet group road light signal and send;
Described separating converged in the step:
Also comprise before the step a receiving Ethernet group road light signal, and carry out forming the Ethernet group signals after the light-to-current inversion;
Also comprise after the steps d described multichannel Ethernet tributary signal is carried out electro-optical conversion, and formation multichannel Ethernet branch road light signal sends.
The present invention is by branch road processing unit, buffer unit, multiplexing and demultiplexing unit, group road processing unit, realized efficiently that converging of Ethernet service conciliate and converged, its structure and handle level simple, greatly reduce technical complexity, and the present invention has, and cost is low, the advantage of good reliability, is fit to large-scale application.
Description of drawings
Fig. 1 is the Ethernet service converging device construction module figure that prior art provides;
Fig. 2 is the construction module figure of Ethernet service converging device provided by the invention;
Fig. 3 is an Ethernet service assemblage method flow chart provided by the invention;
Fig. 4 is a data fifo structure chart provided by the invention;
Fig. 5 is time slot allocation figure provided by the invention;
Fig. 6 is that Ethernet service provided by the invention is separated the assemblage method flow chart;
Fig. 7 is the converging device construction module figure of first embodiment of the invention;
Fig. 8 is the time slot allocation figure of first embodiment of the invention;
Fig. 9 is the time slot allocation figure of second embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Ethernet service converging device provided by the invention comprises as shown in Figure 2:
Some branch road processing units 202 are used for converging direction to the multichannel Ethernet tributary signal reconciliation frame of decoding, to form the multichannel Ethernet data and to write buffer unit 203; Perhaps converge direction the multichannel Ethernet data from buffer unit 203 is encoded and framing separating, to form multichannel Ethernet tributary signal.Here, branch road processing unit 202 pairs of multichannel Ethernets tributary signal or multichannel Ethernet data carry out the medium access control (Media Access Control, MAC) and Physical Coding Sublayer (Physical CodingSublayer PCS) handles.
Some buffer units 203 are used to finish the buffer memory of multichannel Ethernet data.Described buffer unit 203 is preferably the first in first out buffer unit, and (First In First Out FIFO), is used to finish the interface conversion and/or the rate-matched at formation two ends.
Multiplexing and demultiplexing unit 204 is used in that to converge direction will be from the multichannel Ethernet data of buffer unit 203 multiplexing and be mapped as one road Ethernet data; Perhaps converge direction and one road Ethernet data demultiplexing is conciliate be mapped as the multichannel Ethernet data separating, and write buffer unit 203.Here, described multiplexing and demultiplexing unit 204 is preferably time-division multiplexing unit and demultiplexing unit.
Group's road processing unit 205 is used for converging direction to road Ethernet data and string conversion from multiplexing and demultiplexing unit 204, and encode, framing and scrambler etc. handle to form the Ethernet group signals; Perhaps converge direction and the Ethernet group signals is gone here and there and change separating, and decode, separate frame and descrambling code and handle forming one road Ethernet data, and send to multiplexing and demultiplexing unit 204.
Described Ethernet service converging device also includes:
Some branch road photoelectric conversion units 201, be used for converging direction reception multichannel Ethernet branch road light signal, and carrying out the light-to-current inversion formation multichannel Ethernet branch road signal of telecommunication, this paper is called the Ethernet tributary signal with the Ethernet branch road signal of telecommunication, sends to branch road processing unit 202; Perhaps converge direction and will carry out electro-optical conversion separating, and form multichannel Ethernet branch road light signal and send from the multichannel Ethernet tributary signal (signal of telecommunication) of branch road processing unit 202.
Group's road optical module 206 is used for will carrying out electro-optical conversion from the Ethernet group signals (signal of telecommunication) of group road processing unit 205 converging direction, forms Ethernet group road light signal and sends; Perhaps converge direction and receive Ethernet group road light signal separating, and carry out forming Ethernet group signals (signal of telecommunication) after the light-to-current inversion and send to group road processing unit 205.
The present invention utilizes above-mentioned converging device that a kind of assemblage method of Ethernet service is provided, and comprises converging step and/or separating and converge step.Fig. 3 shows the process step of Ethernet service assemblage method, below be described below simultaneously in conjunction with Fig. 2:
Step S301 receives multichannel Ethernet branch road light signal, and this Ethernet branch road light signal is carried out corresponding light-to-current inversion, forms multichannel Ethernet tributary signal (signal of telecommunication).
N the N road Ethernet branch road light signal that branch road photoelectric conversion units 201 receives from a trackside, wherein, each branch road photoelectric conversion units 201 corresponding one road Ethernet branch road light signal.201 pairs of these Ethernet branch road light signals of branch road photoelectric conversion units carry out light-to-current inversion, make it to change into the Ethernet tributary signal, and each Ethernet tributary signal is sent to corresponding branch road processing unit 202.
Step S302 is to the multichannel Ethernet tributary signal reconciliation frame of decoding, to form the multichannel Ethernet data.
202 pairs of multichannel Ethernets of branch road processing unit tributary signal carries out PCS and MAC handles, finish the frame alignment and the decoding of Ethernet, and parsing ethernet frame, this ethernet frame is carried out CRC (Cyclical Redundancy Check, CRC) and monitoring, to form the multichannel Ethernet data.Again the multichannel Ethernet data all is divided into the plurality of data section, and each data segment is added that packet header and bag tail to form data message, write it and these branch road processing unit 202 corresponding cache unit 203 then.Described data message form is referring to shown in Figure 4, by packet header (Start of Packet, SOP), (End of Packet, EOP) three parts are formed for data segment (DATA) and bag tail.
Step S303 carries out buffer memory with described multichannel Ethernet data.
Step S304, the multichannel Ethernet data that is buffered is multiplexing and be mapped as one road Ethernet data.
Data in multiplexing and 204 pairs of each branch road buffer units 203 of demultiplexing unit are carried out poll by timeslice, and distribute corresponding time slot according to the difference of branch road bandwidth, realizing the mapping of multichannel Ethernet data and to be multiplexed with one road Ethernet data, and send to group road processing unit 205.Just can not adjust in case all branch road time slot allocation are determined the back, the time slot position of each branch road immobilizes again, and putting in order as shown in Figure 5 of its time slot allocation comprises time slot TS1～TSn successively.Multiplexing and demultiplexing unit 204 carries out poll according to distributed time slot to the data in all branch road buffer units 203, if the data fit data message form shown in Figure 4 of branch road buffer unit 203 then reads these data, and is put in the time slot corresponding; If branch road buffer unit 203 does not have data, this moment, the content of corresponding time slot was empty, had finished the multiplexing of a plurality of tributary signals and mapping thus.
Step S305 carries out and goes here and there conversion described one road Ethernet data, and encode and framing to form the Ethernet group signals.
Group's road processing unit 205 pairs of described one road Ethernet datas carry out framing and line coding, and carry out and go here and there transforming formation Ethernet group road high speed signal and being sent to group road optical module 206.
Step S306 carries out electro-optical conversion to described Ethernet group signals, forms Ethernet group road light signal and sends.
After group's road optical module 206 pairs of these Ethernets group's road high speed signal (signal of telecommunication) carries out electro-optical conversion, form Ethernet group road light signal, and it is sent from group's trackside.
Ethernet service of the present invention separate the process of converging and the above-mentioned process contrary that converges, referring to shown in Figure 6, and be described below in conjunction with Fig. 2:
Step S601 receives Ethernet group road light signal, and carries out forming Ethernet group signals (signal of telecommunication) after the light-to-current inversion.
Group road optical module 206 receives Ethernet group road light signal from group's trackside, and formation Ethernet group signals sends to group road processing unit 205 after carrying out light-to-current inversion.
Step S602 goes here and there and changes the Ethernet group signals, and decodes and conciliate frame to form one road Ethernet data.
Group road processing unit 205 described Ethernet group signals are gone here and there and are changed, and the reconciliation frame of decoding, and form one road Ethernet data and send to multiplexing and demultiplexing unit 204.
Step S603 is mapped as the multichannel Ethernet data with described one road Ethernet data demultiplexing reconciliation.
Multiplexing and demultiplexing unit 204 carries out the demultiplexing reconciliation with described one road Ethernet data and is mapped as the multichannel Ethernet data, and writes buffer unit 203.
Step S604 carries out buffer memory with described multichannel Ethernet data.
Step S605 encodes and framing to the multichannel Ethernet data that is buffered, to form multichannel Ethernet tributary signal.
Branch road processing unit 202 reads the multichannel Ethernet data in the buffer unit 203, and to its encode and framing to form multichannel Ethernet tributary signal, be sent to branch road photoelectric conversion units 201.
Step S606 carries out electro-optical conversion with described multichannel Ethernet tributary signal, and formation multichannel Ethernet branch road light signal sends.
201 pairs of multichannel Ethernets of branch road photoelectric conversion units tributary signal (signal of telecommunication) carries out electro-optical conversion, forms multichannel Ethernet branch road light signal and launches from a trackside.
Fig. 7 is the first example structure schematic diagram of Ethernet service converging device of the present invention, comprise branch road photoelectric conversion units 701, PCS and MAC processing unit 702, FIFO buffer unit 703, time division multiplexing and demultiplexing unit 704, group road 8B/10B codec unit 705 and group road 2.5G optical module 706.Trackside signal in the present embodiment is Gigabit Ethernet (Gigabit Ethernet, a GE) signal, and the function of described PCS and MAC processing unit 702 meets the requirement of IEEE802.3.
The process that converges of embodiment one is as follows: trackside signal GE1, GE2 enter corresponding branch road photoelectric conversion units 701,701 couples of GE1 of branch road photoelectric conversion units, GE2 signal carry out light-to-current inversion, make it to become the signal of telecommunication, and be sent to PCS and MAC processing unit 702.702 pairs of these Ethernet signals of telecommunication of PCS and MAC processing unit carry out PCS and MAC handles, finish the frame alignment and the 8B/10B decoding of Ethernet, and parsing ethernet frame, this ethernet frame is carried out CRC check and monitoring, again GE1, GE2 signal segmentation are become the plurality of data section, each data segment adds packet header SOP and bag tail EOP, and writes corresponding FIFO buffer unit 703 according to data message form among Fig. 4.Time division multiplexing and demultiplexing unit 705 carry out poll to the data of each branch road FIFO buffer unit 703 by timeslice.In the present embodiment, the required bandwidth of tributary signal GE1 and GE2 is identical, and the time slot size of therefore distributing to each branch road is identical, its time slot positional alignment order as shown in Figure 8, and time slot position immobilizes.Time division multiplexing and demultiplexing unit 704 carry out poll according to distributed time slot to the data of all branch road FIFO buffer units 703, if the data message form of data fit Fig. 4 of FIFO buffer unit 703, then read and be put into it in time slot corresponding, if FIFO buffer unit 703 does not have data, then the content of its corresponding time slot is empty, thereby has realized the multiplexing of GE1, GE2 signal and mapping.Time division multiplexing and demultiplexing unit 704 deliver the GE1 after multiplexing, GE2 signal to group road 8B/10B codec unit 705, this Ethernet data is carried out framing and circuit 8B/10B coding, and carry out forming 2.5G group road high speed signal behind the parallel serial conversion, give group road 2.5G optical module 706,706 couples of described 2.5G groups of group's road 2.5G optical module road high speed signal carries out electro-optical conversion and sends from group's trackside.
Present embodiment separate the process of converging and the above-mentioned process contrary that converges, just no longer describe in detail at this.
The second example structure module provided by the invention is similar to Fig. 7, also comprise branch road photoelectric conversion units 701, PCS and MAC processing unit 702, FIFO buffer unit 703, time division multiplexing and demultiplexing unit 704, group road 8B/10B codec unit 705 and group road 2.5G optical module 706.Different is that the trackside signal among this embodiment is Gigabit Ethernet signal GE and Fast Ethernet (Fast Ethernet, FE) signal.
The process that converges of embodiment two is as follows: trackside signal GE, a FE enter corresponding branch road photoelectric conversion units 701, and 701 couples of GE of branch road photoelectric conversion units, FE signal carry out light-to-current inversion, make it to become the signal of telecommunication, and are sent to PCS and MAC processing unit 702.702 pairs of these Ethernet signals of telecommunication of PCS and MAC processing unit carry out PCS and MAC handles, finish the frame alignment of Ethernet, the 8B/10B decoding of GE signal and the 4B/5B decoding of FE signal, and parsing ethernet frame, this ethernet frame is carried out CRC check and monitoring, again GE, FE signal segmentation are become the plurality of data section, each data segment adds packet header SOP and bag tail EOP, and writes the FIFO buffer unit 703 corresponding with this branch road PCS and MAC processing unit 702 according to the form of FIFO among Fig. 4.Time division multiplexing and demultiplexing unit 704 carry out poll to the data of each branch road FIFO buffer unit 703 by timeslice, and according to the corresponding time slot of branch road allocated bandwidth.In the present embodiment, the required bandwidth of tributary signal GE and FE is different, and GE is 1Gbps, FE is 100Mbps, therefore the slot length of distributing to the GE branch road is big 10 times than the slot length of distributing to the FE branch road, its time slot positional alignment in proper order as shown in Figure 9, and time slot position immobilizes.Time division multiplexing and demultiplexing unit 704 carry out poll according to distributed time slot to the data of all branch road FIFO buffer units 703, if the data message form of data fit Fig. 4 of FIFO buffer unit 703, then read and be put into it in time slot corresponding, if FIFO buffer unit 703 does not have data, then the content of its corresponding time slot is empty, thereby has realized the multiplexing of GE, FE signal and mapping.Time division multiplexing and demultiplexing unit 704 deliver the GE after multiplexing, FE signal to group road 8B/10B codec unit 705, to encode to this Ethernet data being carried out framing and circuit 8B/10B, and carry out forming 1.375G group road high speed signal behind the parallel serial conversion, then this group road high speed signal is given group road 2.5G optical module 706 and carried out electro-optical conversion and send from group's trackside.
Present embodiment separate the process of converging and the above-mentioned process contrary that converges, just no longer describe in detail at this.
In summary, the present invention is by branch road processing unit, buffer unit, multiplexing and demultiplexing unit, group road processing unit, realized efficiently that converging of Ethernet service conciliate to converge, its structure and handle level simple, greatly reduce technical complexity.And the present invention has, and cost is low, the advantage of good reliability, is suitable for large-scale promotion and application.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (5)
1, a kind of converging device of Ethernet service is characterized in that, comprising:
Some branch road processing units, be used for converging direction to the multichannel Ethernet tributary signal reconciliation frame of decoding, to form the multichannel Ethernet data and to write buffer unit, perhaps converge direction the multichannel Ethernet data from buffer unit is encoded and framing separating, to form multichannel Ethernet tributary signal;
Some buffer units are used to finish the buffer memory of described multichannel Ethernet data;
Multiplexing and demultiplexing unit, be used in that to converge direction will be from the multichannel Ethernet data of this buffer unit multiplexing and be mapped as one road Ethernet data, perhaps converge direction and this one road Ethernet data demultiplexing is conciliate be mapped as the multichannel Ethernet data separating, and write described buffer unit;
Group road processing unit, be used for converging direction to road Ethernet data and string conversion from multiplexing and demultiplexing unit, and encode and framing to form the Ethernet group signals, perhaps converge direction and the Ethernet group signals is gone here and there and change separating, and decode and conciliate frame and after forming one road Ethernet data, send to described multiplexing and demultiplexing unit;
Described buffer unit is the first in first out buffer unit, is used to finish the interface conversion and/or the rate-matched at formation two ends; And/or
Described multiplexing and demultiplexing unit is time division multiplexing and demultiplexing unit;
Described branch road processing unit is converging direction, and the multichannel Ethernet data all is divided into the plurality of data section, and each data segment is added that packet header and bag tail write described first in first out buffer unit to form data message;
Described time division multiplexing and demultiplexing unit carry out poll to the data in each first in first out buffer unit by timeslice converging direction, and can distribute corresponding time slot according to the difference of branch road bandwidth, and described time slot position immobilizes.
2, converging device according to claim 1 is characterized in that, further comprises:
Some branch road photoelectric conversion units, be used for converging direction reception multichannel Ethernet branch road light signal, and formation multichannel Ethernet tributary signal sends to described branch road processing unit after carrying out light-to-current inversion, perhaps converge on the direction and will carry out electro-optical conversion separating, and form multichannel Ethernet branch road light signal and send from the multichannel Ethernet tributary signal of described branch road processing unit;
Group road optical module, be used for to carry out electro-optical conversion from the Ethernet group signals of described group road processing unit converging direction, forming Ethernet group road light signal sends, perhaps converge direction and receive Ethernet group road light signal separating, and carry out forming the Ethernet group signals after the light-to-current inversion and send to described group road processing unit.
3, converging device according to claim 1 is characterized in that, described branch road processing unit is to multichannel Ethernet tributary signal or the multichannel Ethernet data carries out Physical Coding Sublayer and the medium access control is handled.
4, converging device according to claim 1, it is characterized in that, described time division multiplexing and demultiplexing unit are converging direction according to the time slot of having distributed, data in this first in first out buffer unit are carried out poll, if do not have data in the first in first out buffer unit, its corresponding distributed time slot content is empty; If the described data message form of data fit in the first in first out buffer unit then reads it and write in the corresponding distributed time slot.
5, converging device according to claim 1, it is characterized in that, described group road processing unit also is used for handling carrying out scrambler from multiplexing and one road Ethernet data demultiplexing unit converging direction, perhaps converges direction and the Ethernet group signals is carried out descrambling code handles separating.
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| CN101841744A (en) * | 2009-03-17 | 2010-09-22 | 华为技术有限公司 | Transmitting method and device of hundred gigabit Ethernet in optical transmission network |
| CN103036847B (en) * | 2011-09-29 | 2015-11-25 | 厦门福信光电集成有限公司 | A kind of convergent type protocol converter of automatic identification HDLC/GFP type user side protocol converter and receiving/transmission method thereof |
| CN102404065B (en) * | 2011-11-09 | 2014-02-26 | 武汉日电光通信工业有限公司 | SDH (Synchronous Digital Hierarchy) pointer processing method and circuit thereof |
| CN103581050B (en) * | 2012-07-23 | 2017-06-06 | 上海粱江通信系统股份有限公司 | A kind of Ethernet data assemblage method |
| CN103166710B (en) * | 2012-12-19 | 2015-12-02 | 中国联合网络通信集团有限公司 | Downlink signal transmission, access device and trunking |
| CN103561360B (en) * | 2013-10-24 | 2016-08-24 | 烽火通信科技股份有限公司 | The device and method of serial process optical transfer network expense |
| CN106330629A (en) * | 2015-06-29 | 2017-01-11 | 深圳市中兴微电子技术有限公司 | Ethernet interface and data processing device and method thereof |
| CN110113240A (en) * | 2019-04-24 | 2019-08-09 | 西安电子科技大学 | Bus paradigmatic system based on 100 m ethernet mouth |
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