CN102611591A - Hybrid fiber-coax accessing system capable of replacing ONU (Optical Network Unit) - Google Patents
Hybrid fiber-coax accessing system capable of replacing ONU (Optical Network Unit) Download PDFInfo
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- CN102611591A CN102611591A CN2011100227365A CN201110022736A CN102611591A CN 102611591 A CN102611591 A CN 102611591A CN 2011100227365 A CN2011100227365 A CN 2011100227365A CN 201110022736 A CN201110022736 A CN 201110022736A CN 102611591 A CN102611591 A CN 102611591A
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Abstract
The invention provides a hybrid fiber-coax accessing system capable of replacing an ONU (Optical Network Unit), relating to an information technology. The hybrid fiber-coax accessing system comprises an EOC (End Of Conversion) head end machine and a plurality of EOC terminal machines. The hybrid fiber-coax accessing system is characterized in that: the EOC head end machine has a PON (Passive Optical Network) interface function; the EOC head end machine is arranged in a district or a building; the EOC terminal machines are provided with output ports capable of processing a television service, a data service, a fax service and a voice service; each EOC terminal machine is respectively arranged in each family; an input end of the EOC head end machine is connected with local side OLT (Optical Line Terminal) equipment through an optical cable, and is connected with a CATV (Community Antenna Television) optical receiver through a coaxial cable; an output end of the EOC head end machine is connected to the input end of each EOC terminal machine through a coaxial cable distribution network; and each output port of each EOC terminal machine is respectively connected with a domestic television, a computer, a digital domestic gateway, an IPTV (Internet Protocol Television) set top box, a telephone and the like. The hybrid fiber-coax accessing system provided by the invention has the advantages of small investment and easiness for construction, and is suitable for being used in three-network fusing engineering.
Description
Technical field
[0001] the present invention relates to information technology, a kind of access net system of the integration of three networks particularly, it belongs to national high-tech research development plan (863 Program) areas of information technology " integration of three networks evolution technology and system research " category.
Background technology
At present, passive optical network PON is the most popular technology, but present stage also have defective in the application of China to get into huge numbers of families' (being FTTH) at once and be difficult to realize because construction cost is too high at present.In the PON solution, user's data and video traffic are handled and are mainly accomplished by ONU.Realize difference or unified access the, i.e. the PON+LAN mode of data and video with the FE/GE port at ONU rack user side; Also can realize that through the ADSL2+POST interface board data and voice user's twisted-pair feeder insert by ONU.After each Business Stream of ONU rack network side is through the ODN system uplink, reach local side OLT, converge the back by OLT again and be connected to broadband metropolitan area network, voice IP bearer network NGN or V5PSTN and video communication network through first line of a couplet GE/FE interface.Voice solution can be used the voice solution based on the NGN net in the OLT side, also can use the voice solution that inserts the PSTN net based on the V5 agreement.The voice solution great majority adopt the PON system based on the NGN net at present, and promptly OLT separates the voice-and-data Business Stream, and data traffic flow is diverted to the IP data network from the GE optical interface of OLT; Speech business stream is linked in the flexible exchanging network through the electric oralia of OLT.The major defect of this ONU solution is a high-carbon economy: the one, and ONU initial outlay cost is high, and payoff period is long, has influenced the profit margin of operator; The 2nd, debugging and maintenance requirement are high, have increased the TCO cost; The 3rd, concerning the very important radio and television departments of the integration of three networks, wasted the coaxial network resource of its advantage.
By contrast; EOC is most economical technology; But present EOC system is connected to the BAS of IP network convergence-level often rather than directly links to each other with OLT aspect networking; To solve data service is main, can not finely satisfy the professional demand of telecom operators' voice, and this also is the main cause that the passive optical network PON system is at first selected by telecom operators.
The beginning of this year, both the central and local governments have all proposed to accelerate to advance the problem of telecommunications network, the Internet, broadcasting and television network " integration of three networks ".In order effectively to satisfy the demand of integration of three networks Access Network, be necessary prior art is improved to integrated services such as video, data, speeches.
Summary of the invention
The present invention fully combines the two advantage of PON and EOC; Replace ONU with hybred fiber-coax connecting system EOC head end with PON interface; And moving on to the terminal after data service of being handled by ONU in the PON system and the voice service function, this is most economical integration of three networks access network technology route.This about hybred fiber-coax connecting system evolution technology research listed national high-tech research development plan (863 Program) areas of information technology " integration of three networks evolution technology and system research " major project in.The invention provides and a kind ofly can be on a large scale promote, can combine closely with integration of three networks business, can effectively utilize as far as possible the high-speed wideband access network technology of existing network infrastructure to reduce overlapping investment, can also constantly upgrade with low cost.
The present invention includes an EOC headend and a plurality of EOC terminating machine; It is characterized in that the EOC headend has the PON interface function, the EOC headend is arranged on sub-district or building; The EOC terminating machine has the output interface that can handle television services, data service, facsimile service and voice service, and each EOC terminating machine is separately positioned on each domestic consumer; The input of EOC headend is connected to the OLT equipment of local side through optical cable, is connected to the optical receiver of CATV simultaneously through coaxial cable; The output of EOC headend distributes the input that is connected to each EOC terminating machine through coaxial cable; Each output interface of each EOC terminating machine is connected respectively to television set, computer, digital home gateway, IPTV STB, telephone set and the facsimile machine of domestic consumer or desk tops.
As further improvement of the present invention, the output of EOC headend reaches the input that 500 meters coaxial cable distribution net is connected to each EOC terminating machine through length.
As another improvement of the present invention, the EOC headend has PON interface module and switch management module and an above EOC chipset module, and switch management module is connected to each EOC chipset module through built-in parallel processing technique; Through selecting different EOC chipset module for use, reach head end band width in physical 800M to 4Gbps; The EOC terminating machine has SOC chip and EOC chipset; Have the network management software and the VOIP speech process software of an independent development to be embedded in to realize WIFI, VOIP function the SOC chip on; The last PCM telephone signal of SOC is connected with ordinary telephone set, facsimile machine through subscriber line interface circuit SLIC; Data-signal then is connected through the RJ45 interface of SOC with the IPTV signal; TV signal is then directly drawn from coaxial line.
The present invention becomes during except the return noise of the advantage that keeps former EOC system such as special adaptation coaxial cable distribution net, circuit interference, AXT and characteristic etc. the problem; Maximum characteristics are: one can with telecom operators just at the OLT slitless connection of the PON of large-scale promotion and construction system; Initial outlay than the ONU of PON system under the identical situation of user function can reduce 95%, and overall construction cost TCO can reduce 75%; The 2nd, solved the problem that former EOC system terminal VOIP speech processing needs independent distribution network number of the account, satisfied telecom operators' voice treatment requirement; The 3rd, can utilize existing China coaxial cable distribution net resource the most widely; Need not rewiring; As promote the broadband user's circuit cost of access that to save hundred million yuan of hundreds ofs in the whole nation; And can realize that optical node arrives user's reliable and stable wideband transmit, be particularly suitable for advancing " integration of three networks " to adopt the real current situation of coaxial cable distribution net.
Description of drawings
Fig. 1 is a system block diagram of the present invention;
Fig. 2 is the structured flowchart of EOC headend of the present invention;
Fig. 3 is the structured flowchart of EOC terminating machine of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Referring to Fig. 1, the present invention includes an EOC headend 1 and a plurality of EOC terminating machines 2; EOC headend 1 is arranged on sub-district or building, and each EOC terminating machine 2 is separately positioned on each domestic consumer 3 the insides.
EOC headend 1 has the PON interface function, and EOC terminating machine 2 has the output interface that can handle television services, data service, facsimile service and voice service; The input of EOC headend 1 is connected to the OLT equipment 4 of local side through optical cable, is connected to CATV optical receiver 5 through coaxial cable simultaneously and is connected to CATV light net 6; The front end of OLT equipment 4 is connected to the broadband access BAS server 15 and CDN Distributor 16 of IP network convergence-level, and the front end of OLT equipment 4 is also connected to PSTN public switch telephone network 17 simultaneously.
The output of EOC headend 1 connects each EOC terminating machine 2 through coaxial cable 7, on the appropriate location of coaxial cable 7, inserts the input that one or more levels splitter 8 is connected to signal allocation each EOC terminating machine 2; Length from the output of EOC headend 1 to coaxial cable 7 arbitrary EOC terminating machine 2 can reach 500 meters, adopts category-5 cable to be limited to 90 meters to the terminal with interior distance considerably beyond the PON+LAN system.Each output interface of each EOC terminating machine 2 is connected respectively to 3 li of domestic consumers' television set 9, computer 10, digital home gateway 11, IPTV STB 12, telephone set (facsimile machine) 13.
Referring to Fig. 2; The EOC headend of hybred fiber-coax connecting system of the present invention has increased PON interface module 17 and switch management module 18 on the basis of original EOC head end; The public number of the account process software of the network management software of independent development and NGN speech is embedded on the switch management module 18, and is compatible fully through SMNP agreement and Upper NM Station center.The switch management module 18 of Applying Parallel Processing can articulate 1-4 EOC chipset module 19, and through selecting different EOC chipsets 20 for use, the head end band width in physical reaches 800M to 4Gbps.
Referring to Fig. 3, the EOC terminating machine of hybred fiber-coax connecting system of the present invention disposes a voice port (RJ11) and a plurality of FPDP (RJ45), and has routing function and WIFI function; Terminal bandwidth can realize that 100,000,000 bandwidth are to desktop by the long-range setting of network management center between 2M-100M.The EOC terminating machine adopted the network management software and the VOIP speech process software of independent development and be embedded in realize WIFI, VOIP function the SOC chip on.The last PCM telephone signal of SOC is connected with ordinary telephone set, facsimile machine through subscriber line interface circuit SLIC; Data-signal then is connected through the RJ45 interface of SOC with the IPTV signal; TV signal is then directly drawn from coaxial line.
Seeing table, be that the ONU construction cost of example explanation hybred fiber-coax connecting system of the present invention and EPON contrasts with 200 families (comprising speech and data) under the condition that at present application bandwidth 4Mbps is identical:
The hybred fiber-coax connecting system that the visible the present invention of numeral replaces ONU from table is except the once input of modulator-demodulator cost is high slightly; All other engineering inputs all are significantly less than the prior art scheme, and it obviously is superior to the prior art scheme on comprehensive technical performance.The social benefit of technical advantage of the present invention and expection is conspicuous.
Claims (4)
1. a hybred fiber-coax connecting system that replaces ONU comprises an EOC headend and a plurality of EOC terminating machine; It is characterized in that: said EOC headend has the PON interface function, and the EOC headend is arranged on sub-district or building; Said EOC terminating machine has the output port that can handle television services, data service, facsimile service and voice service, and each EOC terminating machine is separately positioned on each domestic consumer or desk tops; The input of EOC headend is connected to the OLT equipment of local side through optical cable, is connected to the optical receiver of CATV simultaneously through coaxial cable; The output of EOC headend is connected to the input of each EOC terminating machine through coaxial cable distribution net; Each output port of each EOC terminating machine is connected respectively to television set, computer, digital home gateway, IPTV STB, telephone set and the facsimile machine of domestic consumer or desk tops.
2. according to the hybred fiber-coax connecting system of the described replacement of claim 1 ONU, it is characterized in that: the output of said EOC headend reaches the input that 500 meters coaxial cable distribution net is connected to each EOC terminating machine through length.
3. according to the hybred fiber-coax connecting system of the described replacement of claim 1 ONU, it is characterized in that: said EOC headend has PON interface module and switch management module and an above EOC chipset module; Said switch management module is connected to each EOC chipset module through built-in parallel processing technique; Through selecting different EOC chipsets for use, reach head end band width in physical 800M to 4Gbps.
4. according to the described hybred fiber-coax connecting system that replaces ONU of claim 1; It is characterized in that: said EOC terminating machine has SOC chip and EOC chipset, have the network management software and the VOIP speech process software of an independent development to be embedded in to realize WIFI, VOIP function the SOC chip on; The last PCM telephone signal of SOC is connected with ordinary telephone set, facsimile machine through subscriber line interface circuit SLIC; Data-signal then is connected through the RJ45 interface of SOC with the IPTV signal; TV signal is then directly drawn from coaxial line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100227365A CN102611591A (en) | 2011-01-20 | 2011-01-20 | Hybrid fiber-coax accessing system capable of replacing ONU (Optical Network Unit) |
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| CN2011100227365A CN102611591A (en) | 2011-01-20 | 2011-01-20 | Hybrid fiber-coax accessing system capable of replacing ONU (Optical Network Unit) |
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| CN102611591A true CN102611591A (en) | 2012-07-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152204A (en) * | 2013-03-19 | 2013-06-12 | 聚领信息技术（上海）有限公司 | Centralized management system for Ethernet over coax products |
| CN103856267A (en) * | 2012-11-28 | 2014-06-11 | 鼎点视讯科技有限公司 | Fiber-to-the-home headend, fiber-to-the-home terminal and fiber-to-the-home network system |
| CN109617797A (en) * | 2018-12-24 | 2019-04-12 | 武汉长光科技有限公司 | A kind of EoC gateway of integrated PON module |
| CN112073589A (en) * | 2020-11-12 | 2020-12-11 | 深圳市新龙鹏科技有限公司 | Intelligent gateway VOIP wireless call method, device, equipment and storage medium |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103856267A (en) * | 2012-11-28 | 2014-06-11 | 鼎点视讯科技有限公司 | Fiber-to-the-home headend, fiber-to-the-home terminal and fiber-to-the-home network system |
| CN103152204A (en) * | 2013-03-19 | 2013-06-12 | 聚领信息技术（上海）有限公司 | Centralized management system for Ethernet over coax products |
| CN103152204B (en) * | 2013-03-19 | 2016-01-20 | 聚领信息技术（上海）有限公司 | The centralized management system of co-axial cables transport Ethernet data product |
| CN109617797A (en) * | 2018-12-24 | 2019-04-12 | 武汉长光科技有限公司 | A kind of EoC gateway of integrated PON module |
| CN112073589A (en) * | 2020-11-12 | 2020-12-11 | 深圳市新龙鹏科技有限公司 | Intelligent gateway VOIP wireless call method, device, equipment and storage medium |
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Application publication date: 20120725 |