CN103428214A - Multi-protocol implemented coaxial cable Ethernet bridge - Google Patents
Multi-protocol implemented coaxial cable Ethernet bridge Download PDFInfo
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- CN103428214A CN103428214A CN201310348116XA CN201310348116A CN103428214A CN 103428214 A CN103428214 A CN 103428214A CN 201310348116X A CN201310348116X A CN 201310348116XA CN 201310348116 A CN201310348116 A CN 201310348116A CN 103428214 A CN103428214 A CN 103428214A
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Abstract
The invention provides a multi-protocol implemented coaxial cable Ethernet bridge which comprises a primary terminal and a secondary terminal. The primary terminal is in interactive communication with a cable access local side based on a primary protocol according to the same primary cable access protocol, and the primary cable access protocol and an internal interworking protocol are mutually converted. A secondary local side is in interactive communication with a cable access terminal based on a secondary protocol according to the same secondary cable access protocol, and the secondary cable access protocol and the internal interworking protocol are mutually converted. The primary terminal is in intercommunication with the secondary local side through the internal interworking protocol. Further, the internal interworking protocol is an Ethernet protocol. The technical schemes of cable access based on different protocols coexist, and the multi-protocol implemented coaxial cable Ethernet bridge is of great significance in technical upgrading and updating, original investment protection, long-distance transmission of coaxial cables and broadband expansion.
Description
Technical field
The present invention relates to the broadcasting and TV wideband transmit communications field, especially a kind of coaxial cable Ethernet bridge of realizing multi-protocols.
Background technology
Further expansion along with the integration of three networks, the broadcasting and TV communications industry is progressively developed to multi-service by previous single business, at present most local broadcasting and TV have been supported interactive TV business and broadband services, and it is basis that the coaxial cable resource of broadcasting and TV is all take in the support of all these business.Realize that by coaxial cable above-mentioned multiple services technology is referred to as the cable access technology, and can realize the cable access technology the multiple technologies scheme arranged, such as HomePlug BPL, HomePlug AV, HomePNA, MOCA, C-DOCSIS, the protocol technology schemes such as ECAN, Deco.While having a plurality of above-mentioned cable access technology scheme in a coax network, under current technical conditions, equipment room can't be accomplished to interconnect, and therefore in same coaxial cable distribution net network, the cable access technology of different agreement just can not coexist.
Summary of the invention
The objective of the invention is to solve cable access technology scheme incompatible problem in same coaxial network of current different agreement; a kind of coaxial cable Ethernet bridge of realizing multi-protocols is provided; realize coexisting of the different broadband access technology schemes of multi-protocols, for technology upgrading, upgrade, protect original investment, realize that the long Distance Transmission of coaxial cable and broadband capacity extension have very important significance.The technical solution used in the present invention is:
A kind of coaxial cable Ethernet bridge of realizing multi-protocols, comprise I level terminal and II level local side;
Described I level terminal is carried out interactive communication with the cable access local side based on I level agreement according to identical I level cable access protocol, and carries out turning mutually of I level cable access protocol and inner interworking protocol;
Described II level local side accesses terminal and carries out interactive communication according to identical II level cable access protocol with cable based on II level agreement, and carries out turning mutually of II level cable access protocol and inner interworking protocol;
Described I level terminal intercoms by inner interworking protocol mutually with II level local side.
Further, described inner interworking protocol is Ethernet protocol, and described I level terminal intercoms by Ethernet protocol mutually with II level local side.
Further, described I level terminal comprises the first Ethernet interface, and described II level local side comprises the second Ethernet interface, and described the first Ethernet interface connects described the second Ethernet interface.
Further, described I level terminal is connected with the described cable access local side based on I level agreement by the key distribution network of coaxial cable.
Further, described II level local side accesses terminal and is connected with the described cable based on II level agreement by coaxial cable branch line distribution network.
Advantage of the present invention: can realize coexisting of cable access technology scheme based on different agreement, can effectively protect original investment, realize that technology upgrading upgrades, under some occasions, can realize dilatation and bandwidth upgrading.In the current diversified situation of cable access technology protocol scheme, this invention has very significantly practical significance, has broad application prospects.
The accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Fig. 2 is application scenarios figure of the present invention.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
Basic principle of the present invention is: the bridge that the signal that the local side in prime (I level) cable access protocol scheme sends proposes through coaxial cable distribution net network access the present invention, by being transferred to the terminal of rear class (II level) cable access technology protocol scheme after the bridge converts agreement, and then the coexisting of cable access technology scheme of having realized different agreement.Can adopt any one cable access protocol technical scheme in I level and II level, before and after the cable access protocol that adopts can be different (the present invention are mainly used in before and after the different situation of agreement), also can be identical when identical (this bridge also can play the effect of relaying).
As shown in Figure 1 and Figure 2:
A kind of coaxial cable Ethernet bridge 101 of realizing multi-protocols, comprise I level terminal 102 and II level local side 103; Described I level terminal 102 is carried out interactive communication with the cable access local side 201 based on I level agreement according to identical I level cable access protocol, and carries out turning mutually of I level cable access protocol and the inner Ethernet protocol used; Described II level local side 103 and cable based on II level agreement access terminal and 301 according to identical II level cable access protocol, carry out interactive communication, and carry out turning mutually of II level cable access protocol and the inner Ethernet protocol used; Described I level terminal 102 intercoms by Ethernet protocol mutually with II level local side 103.
Particularly, I level terminal 102 comprises the first transmitting-receiving port, and the first transmitting-receiving port comprises transmit port 102-1 and receiving port 102-2; I level terminal 102 also comprises that one for intercommunicating the first Ethernet interface 102-3.II level local side 103 comprises the second transmitting-receiving port, and the second transmitting-receiving port comprises transmit port 103-2 and receiving port 103-1; II level local side 103 also comprises for intercommunicating the second Ethernet interface 103-3.
Cable access local side 201 based on I level agreement is connected with the first transmitting-receiving port of I level terminal 102 by the key distribution network 401 of coaxial cable.The first Ethernet interface 102-3 of I level terminal 102 connects the second Ethernet interface 103-3 of II level local side 103 by category-5 cable (Cat5 twisted-pair feeder).The second transmitting-receiving port of II level local side 103 accesses terminal and 301 is connected by coaxial cable branch line distribution network 501 and one or more cables based on II level agreement.
Under regard to the concrete signal stream of the present invention and do an analysis.
For downstream signal, cable access local side 201 output packets based on I level agreement are containing the radiofrequency signal of I level cable access protocol, be sent to the receiving port 102-2 of I level terminal 102 by the key distribution network 401 of coaxial cable, then in I level terminal 102, through agreement and signal, change, be adapted at the standard ethernet signal of category-5 cable transmission in the first Ethernet interface 102-3 output, by category-5 cable, this ethernet signal be sent to the second Ethernet interface 103-3 of II level local side 103 as input signal; Then carry out agreement and signal conversion in II level local side 103, be adapted at the radiofrequency signal that comprises II level cable access protocol of coaxial cable transmission through transmit port 103-2 output, the cable be transferred to based on II level agreement by coaxial cable branch line distribution network 501 accesses terminal 301, thereby has realized the transmission of downstream signal.
For upward signal, cable based on II level agreement accesses terminal and 301 sends the upward signal that comprises II level cable access protocol, be sent to the receiving port 103-1 of II level local side 103 by coaxial cable branch line distribution network 501, then in II level local side 103, through agreement and signal, change, be adapted at the standard ethernet signal of category-5 cable transmission in the second Ethernet interface 103-3 output, by category-5 cable, this ethernet signal be sent to the first Ethernet interface 102-3 of I level terminal 102 as input signal; Then carry out agreement and signal conversion in I level terminal 102, be adapted at the radiofrequency signal that comprises I level cable access protocol of coaxial cable transmission through transmit port 102-1 output, be transferred to the cable access local side 201 based on I level agreement by the key distribution network 401 of coaxial cable, thereby realized the transmission of upward signal.
Above-mentioned ethernet signal is transmitted by twisted-pair feeder, and it can support full duplex or semiduplex mode transmission, and radiofrequency signal is transmitted by coaxial cable, and its characteristic has determined can only carry out the semiduplex mode transmission at coaxial cable.Special nature based on coaxial cable, the coaxial cable Ethernet bridge 101 of multi-protocols is operated in semiduplex mode equally, at a time, only has a kind of operating state (signal uplink or signal downlink).In the interactive service of realizing based on coaxial cable, also realized coexisting of different agreement cable access technology by above-mentioned two states.
Claims (5)
1. a coaxial cable Ethernet bridge (101) of realizing multi-protocols, is characterized in that: comprise I level terminal (102) and II level local side (103);
Described I level terminal (102) is carried out interactive communication with the cable access local side (201) based on I level agreement according to identical I level cable access protocol, and carries out turning mutually of I level cable access protocol and inner interworking protocol;
Described II level local side (103) and cable based on II level agreement access terminal (301) carry out interactive communication according to identical II level cable access protocol, and carry out turning mutually of II level cable access protocol and inner interworking protocol;
Described I level terminal (102) intercoms by described inner interworking protocol mutually with II level local side (103).
2. the coaxial cable Ethernet bridge (101) of realizing multi-protocols as claimed in claim 1 is characterized in that:
Described inner interworking protocol is Ethernet protocol, and described I level terminal (102) intercoms by Ethernet protocol mutually with II level local side (103).
3. the coaxial cable Ethernet bridge (101) of realizing multi-protocols as claimed in claim 2, it is characterized in that: described I level terminal (102) comprises the first Ethernet interface (102-3), described II level local side (103) comprises the second Ethernet interface (103-3), and described the first Ethernet interface (102-3) connects described the second Ethernet interface (103-3).
4. as claim 1, the 2 or 3 described coaxial cable Ethernet bridges (101) of realizing multi-protocols, it is characterized in that: described I level terminal (102) is connected with the described cable access local side (201) based on I level agreement by the key distribution network of coaxial cable (401).
5. as claim 1, the 2 or 3 described coaxial cable Ethernet bridges (101) of realizing multi-protocols, it is characterized in that: described II level local side (103) by coaxial cable branch line distribution network (501) and the described cable based on II level agreement access terminal (301) be connected.
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| CN201310348116XA CN103428214A (en) | 2013-08-09 | 2013-08-09 | Multi-protocol implemented coaxial cable Ethernet bridge |
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| CN201310348116XA CN103428214A (en) | 2013-08-09 | 2013-08-09 | Multi-protocol implemented coaxial cable Ethernet bridge |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000070834A1 (en) * | 1999-05-19 | 2000-11-23 | Telia Ab | Device and method for simplified management of services in a communications network |
| CN1787519A (en) * | 2004-12-10 | 2006-06-14 | 华为技术有限公司 | Apparatus for realizing data transmitting and data access system thereof |
| US20110002245A1 (en) * | 2009-07-06 | 2011-01-06 | Cisco Technology, Inc. | In-network home gateway for hybrid fiber-coax network |
| CN201781589U (en) * | 2010-07-07 | 2011-03-30 | 福建金钱猫电子科技有限公司 | Coaxial-cable network broadband access device |
| CN102244596A (en) * | 2011-06-24 | 2011-11-16 | 武汉长光科技有限公司 | Active relay based on EOC |
-
2013
- 2013-08-09 CN CN201310348116XA patent/CN103428214A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000070834A1 (en) * | 1999-05-19 | 2000-11-23 | Telia Ab | Device and method for simplified management of services in a communications network |
| CN1787519A (en) * | 2004-12-10 | 2006-06-14 | 华为技术有限公司 | Apparatus for realizing data transmitting and data access system thereof |
| US20110002245A1 (en) * | 2009-07-06 | 2011-01-06 | Cisco Technology, Inc. | In-network home gateway for hybrid fiber-coax network |
| CN201781589U (en) * | 2010-07-07 | 2011-03-30 | 福建金钱猫电子科技有限公司 | Coaxial-cable network broadband access device |
| CN102244596A (en) * | 2011-06-24 | 2011-11-16 | 武汉长光科技有限公司 | Active relay based on EOC |
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Application publication date: 20131204 |