CN101098165A - Method for providing high speed broadband service on coaxial cable - Google Patents
Method for providing high speed broadband service on coaxial cable Download PDFInfo
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- CN101098165A CN101098165A CNA2006100282130A CN200610028213A CN101098165A CN 101098165 A CN101098165 A CN 101098165A CN A2006100282130 A CNA2006100282130 A CN A2006100282130A CN 200610028213 A CN200610028213 A CN 200610028213A CN 101098165 A CN101098165 A CN 101098165A
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- 230000005540 biological transmission Effects 0.000 abstract description 8
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- 239000013307 optical fiber Substances 0.000 description 1
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Abstract
The invention relates to a method for improving high-speed wideband service on coaxial cable, which junction end is connected with region via PON network, wherein users are connected via prior coaxial cables in region, the invention uses LinkONU exchanger as the bridge device between PON and coaxial cable network, the PON via an exchange chip under ONU outputs N FE data via a Cable Bridge Switch to be modulated on N channels of the coaxial cable, a band-pass filter at the front of the Cable Bridge Switch filters N-1 electromagnetic waves, while only the electromagnetic wave used by user is fed into a Cable Bridge Modem. Therefore, the invention can reduce interference and noise, to confirm the transmission quality of Cable Bridge network signal. Via the invention, 800M-2G frequency domain of one coaxial cable can obtain a plurality of 50M data channels, wile the interference is reduced most, to provide NX 270M access band width to user, even 8 channels.
Description
Technical field
The present invention relates to the network transmission technology field, relate in particular to the technical field of access band business of networking on existing coaxial cable, the technology of carrying out channel multiplexing on the particularly a kind of Cable of utilization Bridge is implemented in the method that high speed broadband service is provided on the coaxial cable.
Background technology
Existing broadband access technology based on coaxial cable mainly is coaxial cable modulation (Cable Modem) technology, and the frequency range that takies 5～65M is carried out uplink, and this transmission method can only provide the shared bandwidth of 6～8M.Cable Bridge (cable bridge) is a kind of new network equipment that the home network interconnect function is provided.It uses the above frequency of 860M, allows the user to set up the home network of bandwidth up to 270M on family's existing wired camera cable.Simultaneously, the user needn't worry to destroy or disturb original cable TV signal again.Cable Bridge can provide high speed broadband service as a kind of novel coaxial cable high speed transmission technology on coaxial cable.But present Cable Bridge technology only is applicable to home network environment, and is not suitable for Access Network.
Summary of the invention
Technical problem to be solved by this invention is the transmission technology that is to utilize Cable Bridge, in building and PON combine, provide a kind of high energy to reach the method that high speed broadband service is provided of 1G speed on coaxial cable.
Technical problem to be solved by this invention can adopt following technical scheme to realize:
A kind of method that high speed broadband service is provided on coaxial cable, its local side adopts the PON network to be connected with the minizone, carry out connection between each resident family with existing coaxial cable in the sub-district, with the bridging device of LinkONU switch as connection PON and coaxial cable network, it is characterized in that described LinkONU switch comprises the combination of an ONU and Cable Bridge Switch (cable bridge switch); Exchange chip output N the FE data (100,000,000 Ethernet interface) that PON hangs down by ONU, this N FE data get on by N the passage that Cable Bridge Switch is modulated to coaxial cable then; Be arranged on the preceding band-pass filter of user Cable BridgeModem (cable bridge cat) and fall the electromagnetic wave of N-1 frequency range, only the electromagnetic wave of the frequency range that this user is used is sent into Cable Bridge Modem.
Wherein, described Cable Bridge Switch is the bridging device that connects Ethernet and coaxial cable network, and it is that a plurality of CableBridge Modem accomplish the Cable Bridge Modem pond on the same integrated circuit board.
Wherein, described Cable Bridge Modem is the bridging device of a Cable Bridge Channel (cable bridge channel) and an Ethernet interface.
The present invention is by this method of attachment, the electromagnetic wave of the band pass filter of a user side employed Channel of this Cable of gating Bridge Modem (channel), the electromagnetic wave of other frequency ranges of filtering disturbs and noise thereby reduce, and guarantees the transmission quality of Cable Bridge network signal.The data channel of a plurality of 50M of coexistence in the spectrum domain of the 800M～2G that makes at a coaxial cable, and it is interfered with each other drop to minimum, thereby the access bandwidth of user N X 270M offered.Provide 8 Channel as the highest.
Description of drawings
Further specify the present invention below in conjunction with the drawings and the specific embodiments.
Fig. 1 provides the PON network structure that method adopted of high speed broadband service on coaxial cable for the present invention.
Fig. 2 is the present invention provides high speed broadband service on coaxial cable the LinkONU Switch structure function figure that method adopted.
Fig. 3 is the present invention provides high speed broadband service on coaxial cable the Cable Bridge home access gateway schematic diagram that method adopted.
Fig. 4 is the present invention provides the band pass filter that the method for high speed broadband service uses on coaxial cable an operation principle schematic diagram.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, further set forth the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, the present invention provides the method for high speed broadband service on coaxial cable, adopts the PON network technology at local side and minizone, thereby avoided the interference of external equipment, reduce the fault of circuit and external equipment, improved system reliability, saved maintenance cost simultaneously.Simultaneously, LinkONU Switch is as the bridging device that connects PON and coaxial cable network.
As shown in Figure 2, LinkONU Switch equipment mainly is made up of ONU chip (as PAS6201) (EPON optical network unit chip) and exchange chip.Because ONU directly exports a GE mouth (gigabit Ethernet interface), and Cable Bridge network is the FE interface, therefore need finish the conversion of signal by exchange chip, export N FE (100,000,000 Ethernet interface).
Described PON network all adopts optical fiber to carry out the signal transmission.
As shown in Figure 3, between Cable Bridge network and the Ethernet, Cable Bridge Switch is as bridging device, and N the Channel that the signal of all FE mouths is modulated to coaxial cable gets on.A Cable Bridge Channel and an Ethernet interface by a Cable Bridge Modem as bridging device.A plurality of like this Cable Bridge Modem can make the Cable Bridge Modem pond that is positioned on the same integrated circuit board
Described Cable Bridge network all adopts coaxial wire to carry out the signal transmission.
As shown in Figure 3, the frequency that " Cable Bridge " technology is used is 800M ~ 2G, wherein is divided into a plurality of modulation frequency ranges, and each frequency range is used the frequency range of 50MHz, the maximum in theory data transmission bauds that can obtain 270Mbps.This method of attachment shown in figure one need add a band pass filter before user side Cable Bridge Modem, carry out frequency and filter.
Filter is the circuit exclusive disjunction treatment system with frequency selection.By the signal form difference of handling, filter can be divided into analog filter and digital filter two classes; By the function filter can be divided into low pass, high pass, band logical with band resistance four classes.Referring to Fig. 4, the operation principle of band pass filter is: each band-pass filter is fallen the electromagnetic wave of other inconsistent frequency of the frequency set with this band pass filter, fall the electromagnetic wave of other frequency as first user's band-pass filter, only pass through the electromagnetic wave of 1 frequency range, and filter out the electromagnetic wave of other frequency range.
Before the Cable of user's receiving terminal Bridge Modem, add a band pass filter, the electromagnetic wave of this band pass filter employed Channel of this CableBridge of gating Modem, the electromagnetic wave of other frequency ranges of filtering, disturb and noise thereby reduce, guarantee the transmission quality of Cable Bridge network signal.
As shown in Figure 3, by this method of attachment, in the above-mentioned frequency domain of a coaxial cable, filter if adopt band pass filter to carry out frequency, a plurality of frequency ranges that just can in a coaxial cable, coexist, as reach as high as 8 frequency ranges, thereby make in the spectrum domain of a coaxial cable data channel of a plurality of 50M of coexistence, and the equipment on the different frequency range of will being operated in interferes with each other and drops to minimum, thereby offers the access bandwidth of user N * 270M, as the access bandwidth of eight 270M.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1, a kind of method that high speed broadband service is provided on coaxial cable, its local side adopts the PON network to be connected with the minizone, carry out connection between each resident family with existing coaxial cable in the sub-district, with the bridging device of LinkONU switch as connection PON and coaxial cable network, it is characterized in that described LinkONU switch comprises the combination of an ONU and Cable Bridge Switch; Exchange chip output N the FE data (100,000,000 Ethernet interface) that PON hangs down by ONU, this N FE data get on by N the passage that Cable Bridge Switch is modulated to coaxial cable then; Be arranged on the preceding band-pass filter of user Cable Bridge Modem and fall the electromagnetic wave of N-1 frequency range, only the frequency range electromagnetic wave that uses by this user is sent into Cable BridgeModem.
2, a kind of method that high speed broadband service is provided on coaxial cable according to claim 1, it is characterized in that, described Cable Bridge Switch is the bridging device that connects Ethernet and coaxial cable network, and it is that a plurality of Cable Bridge Modem accomplish the Cable Bridge Modem pond on the same integrated circuit board.
3, a kind of method that high speed broadband service is provided on coaxial cable according to claim 1 is characterized in that, described Cable Bridge Modem is the bridging device of a Cable Bridge Channel and an Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100282130A CN101098165B (en) | 2006-06-27 | 2006-06-27 | Method for providing high speed broadband service on coaxial cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100282130A CN101098165B (en) | 2006-06-27 | 2006-06-27 | Method for providing high speed broadband service on coaxial cable |
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| CN101098165A true CN101098165A (en) | 2008-01-02 |
| CN101098165B CN101098165B (en) | 2010-12-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103514838A (en) * | 2012-06-29 | 2014-01-15 | 施耐德电器工业公司 | Device and method for realizing multi-color backlight by means of two-line transmission diving method |
| CN104243366A (en) * | 2013-06-14 | 2014-12-24 | 大唐联诚信息系统技术有限公司 | Frequency offset estimation method and device on condition of multiuser access |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140089C (en) * | 2000-12-22 | 2004-02-25 | 卢玉涛 | Wideband access method by using combination of HFC and local area network |
| DE10229900B4 (en) * | 2002-07-03 | 2005-05-04 | Siemens Ag | Configuring a broadband cable distribution network based telephony access network and an associated packet based exchange |
| CN201018491Y (en) * | 2006-06-27 | 2008-02-06 | 上海未来宽带技术及应用工程研究中心有限公司 | Connecting structure for providing high speed broadband business in coaxial cable |
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2006
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103514838A (en) * | 2012-06-29 | 2014-01-15 | 施耐德电器工业公司 | Device and method for realizing multi-color backlight by means of two-line transmission diving method |
| CN103514838B (en) * | 2012-06-29 | 2016-12-21 | 施耐德电器工业公司 | The apparatus and method of multicolor backlight are realized by two wires transmission driving method |
| CN104243366A (en) * | 2013-06-14 | 2014-12-24 | 大唐联诚信息系统技术有限公司 | Frequency offset estimation method and device on condition of multiuser access |
| CN104243366B (en) * | 2013-06-14 | 2018-04-20 | 大唐联诚信息系统技术有限公司 | Frequency deviation estimating method and device under a kind of multiple access |
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| CN101098165B (en) | 2010-12-22 |
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Owner name: SHANGHAI B-STAR BROADBAND TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI B-STAR BROADBAND TECHNOLOGY + APPLICATION ENGINEERING RESEARCH CENTER CO., LTD. |
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Address after: 200336 Shanghai city Changning District Honggu Road No. 150 Patentee after: SHANGHAI B-STAR TECHNOLOGY CO.,LTD. Address before: 200336 Shanghai city Changning District Honggu Road No. 150 Patentee before: Shanghai B-STAR Co.,Ltd. |
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Denomination of invention: Method of providing high-speed broadband service on coaxial cable Effective date of registration: 20220121 Granted publication date: 20101222 Pledgee: Hongkou Branch of Shanghai Rural Commercial Bank Co.,Ltd. Pledgor: SHANGHAI B-STAR TECHNOLOGY CO.,LTD. Registration number: Y2021310000130 |
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Date of cancellation: 20231026 Granted publication date: 20101222 Pledgee: Hongkou Branch of Shanghai Rural Commercial Bank Co.,Ltd. Pledgor: SHANGHAI B-STAR TECHNOLOGY CO.,LTD. Registration number: Y2021310000130 |