CN102215191B - Ethernet over coax (EOC) multimode multiband composite transmission equipment - Google Patents
Ethernet over coax (EOC) multimode multiband composite transmission equipment Download PDFInfo
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Abstract
The invention provides Ethernet over coax (EOC) multimode multiband composite transmission equipment, which comprises a low frequency EOC unit, a high frequency EOC unit, a low frequency unit bilateral filter and a high frequency unit bilateral filter, wherein the low frequency EOC unit receives a data signal from a data network, modulates the data signal into a first low frequency EOC signal, and outputs the first low frequency EOC signal; the high frequency EOC unit receives the data signal from the data network, modulates the data signal into a first high frequency EOC signal, and outputs the first high frequency EOC signal; the low frequency unit bilateral filter receives the first low frequency EOC signal, performs low-pass filtering on the first low frequency EOC signal, receives a cable television signal, performs high-pass filtering on the cable television signal, mixes the filtered first low frequency EOC signal and the filtered cable television signal to obtain a second low frequency EOC signal, and outputs the obtained second low frequency EOC signal; and the high frequency unit bilateral filter receives the second low frequency EOC signal, performs the low-pass filtering on the second low frequency EOC signal, receives the first high frequency EOC signal, performs the high-pass filtering on the first high frequency EOC signal, mixes the filtered second low frequency EOC signal and the filtered first high frequency EOC signal to obtain a mixed signal, and outputs the mixed signal to a cable television subnetwork.
Description
Technical field
The present invention relates to the transmission equipment of ether data, more specifically, relate to a kind of EOC multi-mode, multiband combination of transmitted equipment.
Background technology
It is a kind of data access technology of transmitting ether data by coaxial cable (COAX) that ether data are transmitted (EOC) by coaxial cable, and is widely used in the bidirectional rebuilding of cable television network.
Fig. 1 is the diagram that the main flow EOC scheme of prior art is shown.With reference to Fig. 1, the EOC scheme of prior art comprises: passive EOC, and ethernet signal transmits by coaxial cable, and the signal of transmission keeps the frame format of original ethernet signal; Active EOC, ethernet signal transmits by coaxial cable after the processing such as modulation /demodulation, and the signal of transmission no longer keeps the frame format of original Ethernet signal.In recent years, the application of active EOC is more universal, and it comprises high frequency E OC and low frequency EOC.Table 1 shows working band, typical data transmission rate and the support terminal quantity of several main flow EOC schemes of active EOC.
Frequency and the rate feature of table 1 main flow EOC scheme
All EOC schemes are all operated in the 1.5GHz working band of cable tv coax, and outside the transmission band 88MHz to 862MHz of cable television system, wherein, the working band of low frequency EOC and high frequency E OC lays respectively at 1.5GHz with the two ends outside interior, 88MHz to 862MHz.
Fig. 2 is the diagram that the cable TV network topology with EOC access device is shown.As shown in Figure 2, EOC local side apparatus and EOC terminal equipment in the bidirectional rebuilding of cable TV network, have mainly been increased.EOC local side apparatus be by data network, the dry net of cable TV and the tandem of cable TV subnet to together with equipment, EOC terminal equipment be by cable TV subnet and subscriber terminal equipment (such as, computer, TV etc.) tandem is to equipment together.
Yet, the wherein a kind of EOC scheme of the EOC local side apparatus of prior art in only can support matrix 1,, only can be at the eoc signal of the special frequency band of transmission over coaxial cable of single cable TV subnet, and in single cable TV subnet, only can there is the EOC terminal equipment of supporting single EOC scheme, thereby can not be simultaneously, utilize fully two sections of the height of cable tv coax can utilize frequency band, affect access customer quantity and the access bandwidth of single cable TV subnet.
Summary of the invention
The object of the present invention is to provide a kind of ether data to transmit (EOC) multi-mode, multiband combination of transmitted equipment by coaxial cable, this equipment can be on the coaxial cable of single cable TV subnet carry high frequency and low frequency eoc signal simultaneously.
The invention provides a kind of ether data and transmit (EOC) multi-mode, multiband combination of transmitted equipment by coaxial cable, can comprise: low frequency EOC unit, from data network, receive data-signal, by data signal modulation, be the first low frequency eoc signal, and export the first low frequency eoc signal to low frequency cell bidirectional filter; High frequency E OC unit, receives data-signal from data network, is the first high frequency E OC signal, and exports the first high frequency E OC signal to high frequency unit bidirectional filter by data signal modulation; Low frequency cell bidirectional filter, receive the first low frequency eoc signal and it is carried out to low-pass filtering, receive cable TV signal and it is carried out to high-pass filtering, filtered the first low frequency eoc signal and cable TV signal are mixed to get to the second low frequency eoc signal, and export the second low frequency eoc signal to high frequency unit bidirectional filter; High frequency unit bidirectional filter, receive the second low frequency eoc signal and it is carried out to low-pass filtering, receive the first high frequency E OC signal and it is carried out to high-pass filtering, filtered the second low frequency eoc signal and the first high frequency E OC signal are mixed and mixed signal is outputed to cable TV subnet.
Described EOC multi-mode, multiband combination of transmitted equipment can be bi-directional device, wherein: high frequency unit bidirectional filter also receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively the second high frequency E OC signal and the 3rd low frequency eoc signal, and to high frequency E OC unit, export the second high frequency E OC signal and export the 3rd low frequency eoc signal to low frequency cell bidirectional filter; Low frequency cell bidirectional filter also receives the 3rd low frequency eoc signal and it is carried out to low-pass filtering, to obtain the 4th low frequency eoc signal, and to low frequency EOC unit output the 4th low frequency eoc signal; High frequency E OC unit also receives the second high frequency E OC signal, the second high frequency E OC signal is demodulated into data-signal, and data-signal is outputed to data network; Low frequency EOC unit also receives the 4th low frequency eoc signal, the 4th low frequency eoc signal is demodulated into data-signal, and data-signal is outputed to data network.
Low frequency EOC unit can be a kind of in HomePlug BPL, HomePlug AV and HomePNA3.1EOC local side apparatus.
High frequency E OC unit can be a kind of in MOCA and WiFiEOC local side apparatus.
Low frequency cell bidirectional filter can be set to the first low frequency eoc signal to carry out the low-pass filtering of 2～65MHz, cable TV signal is carried out to the high-pass filtering of 88～862MHz.
High frequency unit bidirectional filter can be set to the second low frequency eoc signal to carry out the low-pass filtering of 2～862MHz, and the first high frequency E OC signal is carried out to the high-pass filtering of 975～1500MHz.
Low frequency cell bidirectional filter can be set to the 3rd low frequency eoc signal to carry out the low-pass filtering of 2～65MHz.
High frequency unit bidirectional filter can be set to mixed signal to carry out the high-pass filtering of 975～1500MHz and the low-pass filtering of 2～862MHz.
The present invention also provides a kind of EOC multi-mode, multiband combination of transmitted equipment, can comprise: low frequency EOC unit, from data network, receive data-signal, and by data signal modulation, be the first low frequency eoc signal, and export the first low frequency eoc signal; High frequency E OC unit, receives data-signal from data network, is the first high frequency E OC signal, and exports the first high frequency E OC signal by data signal modulation; Multichannel bidirectional filter, receive the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal, and respectively the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal are carried out to low-pass filtering or high-pass filtering, filtered the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal are mixed and mixed signal is outputed to cable TV subnet.
Described EOC multi-mode, multiband combination of transmitted equipment can be bi-directional device, wherein: multichannel bidirectional filter also receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively the second high frequency E OC signal and the second low frequency eoc signal, and to high frequency E OC unit, export the second high frequency E OC signal and export the second low frequency eoc signal to low frequency EOC unit; High frequency E OC unit also receives the second high frequency E OC signal, the second high frequency E OC signal is demodulated into high-frequency data signal, and high-frequency data signal is outputed to data network; Low frequency EOC unit also receives the second low frequency eoc signal, the second low frequency eoc signal is demodulated into low-frequency data signal, and low-frequency data signal is outputed to data network.
A kind of ether data are transmitted EOC transmitted in both directions equipment by coaxial cable, can comprise: bidirectional filter, receive cable TV signal, the first high frequency E OC signal of the first low frequency eoc signal of low frequency EOC equipment output and the output of high frequency E OC equipment, and respectively to the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal carry out low-pass filtering or high-pass filtering, by filtered the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal mix and mixed signal are outputed to cable TV subnet, wherein, bidirectional filter also receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively the second high frequency E OC signal and the second low frequency eoc signal, and export the second high frequency E OC signal and export the second low frequency eoc signal to low frequency EOC equipment to high frequency E OC equipment.
Bidirectional filter can comprise: low frequency cell bidirectional filter, receive the first low frequency eoc signal and it is carried out to low-pass filtering, receive cable TV signal and it is carried out to high-pass filtering, filtered the first low frequency eoc signal and cable TV signal are mixed to get to the 3rd low frequency eoc signal, and to high frequency unit bidirectional filter output the 3rd low frequency eoc signal, high frequency unit bidirectional filter, receive the 3rd low frequency eoc signal and it is carried out to low-pass filtering, receive the first high frequency E OC signal and it is carried out to high-pass filtering, filtered the 3rd low frequency eoc signal and the first high frequency E OC signal are mixed and mixed signal is outputed to cable TV subnet, wherein, high frequency unit bidirectional filter also receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively the second high frequency E OC signal and the 4th low frequency eoc signal, and export the second high frequency E OC signal and export the 4th low frequency eoc signal to low frequency cell bidirectional filter to high frequency E OC equipment, low frequency cell bidirectional filter also receives the 4th low frequency eoc signal and it is carried out to low-pass filtering, to obtain the second low frequency eoc signal, and exports the second low frequency eoc signal to low frequency EOC equipment.
Beneficial effect
According to exemplary embodiment of the present invention, can be on the coaxial cable of single cable TV subnet carry high frequency and low frequency eoc signal simultaneously, and in single cable TV subnet, can support the EOC terminal equipment of two kinds of different EOC technical schemes (low frequency and high frequency), thereby significantly increase access user quantity and total access bandwidth of cable TV subnet, to operator, bring larger income, and provide higher access bandwidth for client.
By part in ensuing description set forth the present invention other aspect and/or advantage, some will be clearly by descriptions, or can pass through enforcement of the present invention and learn.
Accompanying drawing explanation
By the detailed description of carrying out below in conjunction with accompanying drawing, above and other objects of the present invention and feature will become apparent, wherein:
Fig. 1 is the diagram that the main flow EOC scheme of prior art is shown;
Fig. 2 is the diagram that the cable TV network topology with EOC access device is shown;
Fig. 3 illustrates the diagram of EOC multi-mode, multiband combination of transmitted local side apparatus according to an exemplary embodiment of the present invention.
Embodiment
Now, describe embodiments of the invention in detail, its example represents in the accompanying drawings, and wherein, identical label represents identical parts all the time.By reference to accompanying drawing, embodiment is described to explain the present invention below.
Fig. 3 illustrates the diagram of EOC multi-mode, multiband combination of transmitted local side apparatus according to an exemplary embodiment of the present invention.
With reference to Fig. 3, EOC multi-mode, multiband combination of transmitted local side apparatus comprise low frequency EOC unit 301, high frequency E OC unit 302, low frequency cell bidirectional filter 303 and high frequency unit bidirectional filter 304.
Low frequency EOC unit 301, for receiving data-signal from data network, is the first low frequency eoc signal that is suitable for coaxial cable transmission by data signal modulation, and to low frequency cell bidirectional filter 303 output the first low frequency eoc signals.
High frequency E OC unit 302, for receiving data-signal from data network, is the first high frequency E OC signal that is suitable for coaxial cable transmission by data signal modulation, and to high frequency unit bidirectional filter 304 output the first high frequency E OC signals.
Here, low frequency EOC unit 301 can be realized with the form of the EOC local side apparatus such as HomePlug BPL, HomePlug AV or HomePNA3.1, high frequency E OC unit 302 can be realized with the form of the EOC local side apparatus such as MOCA or WiFi, but be to be understood that the invention be not limited in this, also can adopt respectively any suitable local side apparatus.
Low frequency cell bidirectional filter 303 has port LP1, port HP1 and port COM1, low frequency cell bidirectional filter 303 receives the first low frequency eoc signal of low frequency EOC unit 301 outputs and it is carried out to low-pass filtering from port LP1, from port HP1, receives the cable TV signal of the dry net input of cable TV and it is carried out to high-pass filtering.Subsequently, low frequency cell bidirectional filter 303 is mixed to get the second low frequency eoc signal by filtered the first low frequency eoc signal and cable TV signal, and to high frequency unit bidirectional filter 304, exports the second low frequency eoc signals by port COM1.Above-mentioned filtering operation can prevent that the band stray of the first low frequency eoc signal from disturbing cable TV signal, and prevents that the band stray of cable TV signal from disturbing the first low frequency eoc signal.Above-mentioned married operation can make mixed signal transmit on a link.Here, low frequency cell bidirectional filter 303 can be set to the first low frequency eoc signal to carry out the low-pass filtering of 2～65MHz, cable TV signal be carried out to the high-pass filtering of 88～862MHz, but be to be understood that the invention be not limited in this.
High frequency unit bidirectional filter 304 has port LP2, port HP2 and port COM2.High frequency unit bidirectional filter 304 receives the second low frequency eoc signal of low frequency cell bidirectional filter 303 outputs and it is carried out to low-pass filtering from port LP2, from port HP2, receives the first high frequency E OC signal of high frequency E OC unit 302 outputs and it is carried out to high-pass filtering.Subsequently, high frequency unit bidirectional filter 304 is mixed to get mixed signal by filtered the second low frequency eoc signal and the first high frequency E OC signal, and by port COM2, mixed signal is outputed to cable TV subnet.Above-mentioned filtering operation can prevent that the band stray of the first high frequency E OC signal from disturbing the second low frequency eoc signal, and prevents that the band stray of the second low frequency eoc signal from disturbing the first high frequency E OC signal.Above-mentioned married operation can make mixed signal transmit on a link.Here, high frequency unit bidirectional filter 304 can be set to the second low frequency eoc signal to carry out the low-pass filtering of 2～862MHz, the first high frequency E OC signal be carried out to the high-pass filtering of 975～1500MHz, but be to be understood that the invention be not limited in this.
Should understand, signal flow of the present invention is not limited to this, cable TV signal can be input to high frequency unit bidirectional filter 304, in high frequency unit bidirectional filter 304, respectively cable TV signal and high frequency E OC signal are carried out to the signal after low-pass filtering and high-pass filtering mixed filtering, high frequency unit bidirectional filter 304 outputs to low frequency cell bidirectional filter 303 by the signal of mixing, by low frequency cell bidirectional filter 303, respectively the mixed signal and the low frequency eoc signal that receive are carried out to high-pass filtering and low-pass filtering, signal after mixed filtering, and mixed signal is outputed to cable TV subnet, also low frequency cell bidirectional filter 303 and high frequency unit bidirectional filter 304 can be replaced with to a multichannel bidirectional filter, directly receive the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal, respectively the above-mentioned signal receiving is carried out to low-pass filtering or high-pass filtering, filtered the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal are mixed and mixed signal is outputed to cable TV subnet.
In addition, according to the operation of above-mentioned low frequency cell bidirectional filter 303 of the present invention and high frequency unit bidirectional filter 304, also can be implemented as an EOC transmitted in both directions equipment, this EOC transmitted in both directions equipment can comprise multichannel bidirectional filter or independent low frequency cell bidirectional filter and high frequency unit bidirectional filter.Described EOC transmitted in both directions equipment receives low-frequency data signal and high-frequency data signal from low frequency EOC local side apparatus independently and high frequency E OC local side apparatus, and described low-frequency data signal and high-frequency data signal and cable TV signal are carried out to mixed transport.For example, described EOC transmitted in both directions equipment comprises bidirectional filter, it receives the low frequency eoc signal of cable TV signal, the output of low frequency EOC equipment and the high frequency E OC signal of high frequency E OC equipment output, and respectively low frequency eoc signal, cable TV signal and high frequency E OC signal are carried out to low-pass filtering or high-pass filtering, filtered low frequency eoc signal, cable TV signal and high frequency E OC signal are mixed and mixed signal is outputed to cable TV subnet.This bidirectional filter also can consist of low frequency cell bidirectional filter and high frequency unit bidirectional filter, wherein, low frequency cell bidirectional filter receives low frequency eoc signal and it is carried out to low-pass filtering, receive cable TV signal and it is carried out to high-pass filtering, filtered low frequency eoc signal and cable TV signal are mixed and exported to high frequency unit bidirectional filter; High frequency unit bidirectional filter receives this mixed signal and it is carried out to low-pass filtering, receives high frequency E OC signal and also it is carried out to high-pass filtering, filtered mixed signal and high frequency E OC signal is mixed and output to cable TV subnet.
Above-mentioned EOC multi-mode, multiband combination of transmitted local side apparatus can be bi-directional device, are the operations of bi-directional device each unit execution while carrying out reverse transfer below by describing in detail when EOC multi-mode, multiband combination of transmitted local side apparatus.
High frequency unit bidirectional filter 304 receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering from port COM2, to obtain respectively the second high frequency E OC signal and the 3rd low frequency eoc signal, and by port HP2 to high frequency E OC unit 302 output the second high frequency E OC signals, by port LP2 to low frequency cell bidirectional filter 303 output the 3rd low frequency eoc signals.Here, high frequency unit bidirectional filter 304 can be set to mixed signal is carried out to the high-pass filtering of 975～1500MHz and the low-pass filtering of 2～862MHz, but be to be understood that the invention be not limited in this.In addition, the sequencing of above-mentioned high-pass filtering and low-pass filtering operation is not limit.
Low frequency cell bidirectional filter 303 receives the 3rd low frequency eoc signal of inputting from high frequency unit bidirectional filter 304 and it is carried out to low-pass filtering from port COM1, to obtain the 4th low frequency eoc signal, and by port LP1 to low frequency EOC unit 301 output the 4th low frequency eoc signals.Here, low frequency cell bidirectional filter 303 can be set to the 3rd low frequency eoc signal is carried out to the low-pass filtering of 2～65MHz, but be to be understood that the invention be not limited in this.In addition, during due to reverse transfer, in signal, only there is data-signal there is no cable TV signal, therefore do not need to carry out the filtering of cable TV signal frequency band at this.
High frequency E OC unit 302 is demodulated into data-signal for the second high frequency E OC signal that will receive from high frequency unit bidirectional filter 304, and data-signal is outputed to data network.
Low frequency EOC unit 301 is demodulated into data-signal for the 4th low frequency eoc signal that will receive from low frequency cell bidirectional filter 303, and data-signal is outputed to data network.
Should understand, reverse signal flow process of the present invention is not limited to this, can first by low frequency cell bidirectional filter 303, receive mixed signal, in low frequency cell bidirectional filter 303, mixed signal is carried out to high-pass filtering and low-pass filtering, and the low frequency signal that filtering is obtained outputs to low frequency EOC unit 301, the high-frequency signal that filtering is obtained outputs to high frequency unit bidirectional filter 304, and in 304 pairs of low frequency EOC unit of high frequency unit bidirectional filter, the high-frequency signal of 301 inputs carries out filtering and outputs to high frequency E OC unit 302 subsequently; Also low frequency cell bidirectional filter 303 and high frequency unit bidirectional filter 304 can be combined into a multichannel bidirectional filter, directly receive the mixed signal of cable TV subnet input and carry out high-pass filtering and low-pass filtering, to obtain respectively the second high frequency E OC signal and the 4th low frequency eoc signal, and export the second high frequency E OC signal and the 4th low frequency eoc signal.
Correspondingly, according to above-mentioned EOC transmitted in both directions equipment of the present invention, can receive mixed signal from cable TV subnet, be filtered into low frequency eoc signal and high frequency E OC signal, and output to respectively independently low frequency EOC local side apparatus and high frequency E OC local side apparatus.For example, described EOC transmitted in both directions equipment comprises bidirectional filter, it receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively high frequency E OC signal and low frequency eoc signal, and to high frequency E OC equipment output high frequency E OC signal with to low frequency EOC equipment output low frequency eoc signal.This bidirectional filter also can consist of low frequency cell bidirectional filter and high frequency unit bidirectional filter, wherein, high frequency unit bidirectional filter receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively high frequency E OC signal and low frequency eoc signal, and to high frequency E OC equipment output high frequency E OC signal with to low frequency cell bidirectional filter output low frequency eoc signal; Low frequency cell bidirectional filter receives low frequency eoc signal and it is carried out to low-pass filtering, and to low frequency EOC equipment, exports the low frequency eoc signal of low-pass filtering.
In addition, if EOC multi-mode, multiband combination of transmitted local side apparatus are bi-directional device, forward transmission and reverse transfer can be carried out simultaneously, also can carry out separately.
As mentioned above, according to exemplary embodiment of the present invention, low frequency eoc signal, high frequency E OC signal and cable TV signal can be mixed on same link and transmit in the situation that being independent of each other, avoid phase mutual interference between three kinds of signals, thereby improve signal to noise ratio and transmission performance.
Table 2 illustrates EOC multi-mode, the spendable scheme combination of multiband combination of transmitted local side apparatus according to an exemplary embodiment of the present invention, but is to be understood that the invention be not limited in high frequency, the low frequency scheme shown in following table of using.
Table 2EOC multi-mode, the combination of multiband combination of transmitted local side apparatus scheme
Although illustrated and described the present invention with reference to certain exemplary embodiments, but it will be apparent to one skilled in the art that in the situation that do not depart from the spirit and scope of the present invention that scope limits by claim and equivalent thereof and can make the various changes in form and details.
Claims (9)
1. ether data are transmitted EOC multi-mode, a multiband combination of transmitted equipment by coaxial cable, comprising:
Low frequency EOC unit, receives data-signal from data network, is the first low frequency eoc signal, and exports the first low frequency eoc signal to low frequency cell bidirectional filter by data signal modulation;
High frequency E OC unit, receives data-signal from data network, is the first high frequency E OC signal, and exports the first high frequency E OC signal to high frequency unit bidirectional filter by data signal modulation;
Low frequency cell bidirectional filter, receive the first low frequency eoc signal and it is carried out to low-pass filtering, receive cable TV signal and it is carried out to high-pass filtering, filtered the first low frequency eoc signal and cable TV signal are mixed to get to the second low frequency eoc signal, and export the second low frequency eoc signal to high frequency unit bidirectional filter;
High frequency unit bidirectional filter, receive the second low frequency eoc signal and it is carried out to low-pass filtering, receive the first high frequency E OC signal and it is carried out to high-pass filtering, filtered the second low frequency eoc signal and the first high frequency E OC signal are mixed and mixed signal is outputed to cable TV subnet.
2. EOC multi-mode as claimed in claim 1, multiband combination of transmitted equipment, wherein, described EOC multi-mode, multiband combination of transmitted equipment are bi-directional device, wherein:
High frequency unit bidirectional filter also receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively the second high frequency E OC signal and the 3rd low frequency eoc signal, and to high frequency E OC unit, export the second high frequency E OC signal and export the 3rd low frequency eoc signal to low frequency cell bidirectional filter;
Low frequency cell bidirectional filter also receives the 3rd low frequency eoc signal and it is carried out to low-pass filtering, to obtain the 4th low frequency eoc signal, and to low frequency EOC unit output the 4th low frequency eoc signal;
High frequency E OC unit also receives the second high frequency E OC signal, the second high frequency E OC signal is demodulated into data-signal, and data-signal is outputed to data network;
Low frequency EOC unit also receives the 4th low frequency eoc signal, the 4th low frequency eoc signal is demodulated into data-signal, and data-signal is outputed to data network.
3. EOC multi-mode as claimed in claim 1 or 2, multiband combination of transmitted equipment, wherein, low frequency EOC unit is a kind of in Home Plug BPL, Home Plug AV and Home PNA3.1EOC local side apparatus.
4. EOC multi-mode as claimed in claim 1 or 2, multiband combination of transmitted equipment, wherein, high frequency E OC unit is a kind of in MOCA and WiFi EOC local side apparatus.
5. EOC multi-mode as claimed in claim 1, multiband combination of transmitted equipment, wherein, low frequency cell bidirectional filter is set to the first low frequency eoc signal to carry out the low-pass filtering of 2～65MHz, cable TV signal is carried out to the high-pass filtering of 88～862MHz.
6. EOC multi-mode as claimed in claim 1, multiband combination of transmitted equipment, wherein, high frequency unit bidirectional filter is set to the second low frequency eoc signal to carry out the low-pass filtering of 2～862MHz, and the first high frequency E OC signal is carried out to the high-pass filtering of 975～1500MHz.
7. EOC multi-mode as claimed in claim 2, multiband combination of transmitted equipment, wherein, low frequency cell bidirectional filter is set to the 3rd low frequency eoc signal to carry out the low-pass filtering of 2～65MHz.
8. EOC multi-mode as claimed in claim 2, multiband combination of transmitted equipment, wherein, high frequency unit bidirectional filter is set to mixed signal to carry out the high-pass filtering of 975～1500MHz and the low-pass filtering of 2～862MHz.
9. ether data are transmitted an EOC transmitted in both directions equipment by coaxial cable, comprising:
Bidirectional filter, receive the first low frequency eoc signal of cable TV signal, the output of low frequency EOC equipment and the first high frequency E OC signal of high frequency E OC equipment output, and respectively the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal are carried out to low-pass filtering or high-pass filtering, filtered the first low frequency eoc signal, cable TV signal and the first high frequency E OC signal are mixed and mixed signal is outputed to cable TV subnet
Wherein, bidirectional filter also receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively the second high frequency E OC signal and the second low frequency eoc signal, and export the second high frequency E OC signal and export the second low frequency eoc signal to low frequency EOC equipment to high frequency E OC equipment
Wherein, bidirectional filter comprises:
Low frequency cell bidirectional filter, receive the first low frequency eoc signal and it is carried out to low-pass filtering, receive cable TV signal and it is carried out to high-pass filtering, filtered the first low frequency eoc signal and cable TV signal are mixed to get to the 3rd low frequency eoc signal, and to high frequency unit bidirectional filter output the 3rd low frequency eoc signal;
High frequency unit bidirectional filter, receive the 3rd low frequency eoc signal and it is carried out to low-pass filtering, receive the first high frequency E OC signal and it is carried out to high-pass filtering, filtered the 3rd low frequency eoc signal and the first high frequency E OC signal are mixed and mixed signal is outputed to cable TV subnet
Wherein, high frequency unit bidirectional filter also receives the mixed signal of cable TV subnet input and it is carried out to high-pass filtering and low-pass filtering, to obtain respectively the second high frequency E OC signal and the 4th low frequency eoc signal, and export the second high frequency E OC signal and export the 4th low frequency eoc signal to low frequency cell bidirectional filter to high frequency E OC equipment;
Low frequency cell bidirectional filter also receives the 4th low frequency eoc signal and it is carried out to low-pass filtering, to obtain the second low frequency eoc signal, and exports the second low frequency eoc signal to low frequency EOC equipment.
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2011
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Patent Citations (3)
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| CN101110726A (en) * | 2007-08-22 | 2008-01-23 | 汕头高新区亚威科技有限公司 | Area summarized information access system |
| CN101815046A (en) * | 2009-02-20 | 2010-08-25 | 北京东方信联科技有限公司 | System for realizing data signal transmission in radio frequency equipment |
| CN101883297A (en) * | 2010-06-21 | 2010-11-10 | 刘显福 | Digital broadband integration and superposition system and method thereof |
Non-Patent Citations (2)
| Title |
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| 《基于EPON+HEoC+LEoC技术构建广电双向网》;杨华明;《中国有线电视》;20110430(第4期);521-522 * |
| 杨华明.《基于EPON+HEoC+LEoC技术构建广电双向网》.《中国有线电视》.2011,(第4期),521-522. |
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