CN101388818A - Data access method and data access system - Google Patents
Data access method and data access system Download PDFInfo
- Publication number
- CN101388818A CN101388818A CNA2008102120303A CN200810212030A CN101388818A CN 101388818 A CN101388818 A CN 101388818A CN A2008102120303 A CNA2008102120303 A CN A2008102120303A CN 200810212030 A CN200810212030 A CN 200810212030A CN 101388818 A CN101388818 A CN 101388818A
- Authority
- CN
- China
- Prior art keywords
- signal
- coaxial cable
- xdsl
- data
- agreement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Small-Scale Networks (AREA)
Abstract
The invention discloses a data access method and a system. The method comprises the following steps: switching data which is transmitted by a network device and is based on the Ethernet protocol to signals which are based on the xDSL protocol, transmitting the signals to a broadband access gateway through a coaxial cable, receiving the signals which are based on the xDSL protocol and are transmitted through the coaxial cable by the broadband access gateway, switching the signals based on the xDSL protocol to the data based on the Ethernet protocol, and transmitting the data to the network device. In the method, the signals based on the xDSL protocol are transmitted coaxially through the switching between the signals based on the Ethernet protocol and the signals based on the xDSL protocol, and the data access is realized for user terminals by cable TV coaxial networks.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of data cut-in method and data insertion system.
Background technology
Along with popularizing of Digital Television reaches the propelling that HFC (Hybrid Fiber Coax, hybred fiber-coax) network bi-directional is transformed, various technology is all used in hfc plant one after another.
In existing passive EoC (Ethernet over COAX, the Ethernet of the coaxial cable carrier) technology, the baseband signal of Ethernet is directly coupled in the coaxial cable (Cable) by passive device transmits.One typical structure of passive EoC network as shown in Figure 1, with the 10/100M ethernet signal by impedance conversion, directly forward in the coax network, after passive impedance and interface conversion, the RJ45 network interface that directly connects user side, the advantage of passive EoC is directly to adopt passive techniques, realize simple, but for passive EoC technology, impedance conversion wherein is necessary, needs to adopt strict impedance matching, just can utilize the Echo Cancellation principle to eliminate reflected signal, otherwise system will form from ring, broadcast storm occurs and causes system crash.
Though passive EoC technology is feasible on the principle, it is big not enough that it realizes that principle has determined that it exists, and is difficult to solve by supplementary technology, and for example: the transmission range of ethernet signal is limited among the passive EoC, can only transmit 20-30 rice; In addition, owing to adopt simple passive signal coupling, the poor anti jamming capability of passive EoC, high to the impedance matching requirement, and can not pass through branch distributor, if the impedance that the user does not have situation such as the loosening or damage of wiring, network interface to cause is not when matching, this will make network form from ring, causes network storm, causes whole net unavailable.
Summary of the invention
The invention provides a kind of data cut-in method and connecting system, be used for realizing and transmit at coaxial cable based on the signal of xDSL agreement, make coaxial cable insert for the network equipment provides data.
The invention provides a kind of data cut-in method, comprising:
The data based on Ethernet protocol that the network equipment is sent are converted to the signal based on the xDSL agreement, and send to broad access network gate by coaxial cable;
Receiving the signal based on the xDSL agreement that described broad access network gate sends by coaxial cable, be data based on Ethernet protocol with described conversion of signals based on the xDSL agreement, and to described network equipment transmission.
Wherein, the described signal that the data based on Ethernet protocol of network equipment transmission are converted to based on asymmetric subscriber's line xDSL agreement comprises:
Receive the data that the network equipment sends through network interface, ethernet physical layer and ethernet mac layer based on Ethernet protocol;
Be converted to described data based on the signal of xDSL agreement and carry out xDSL physical layer process, digital-to-analogue conversion and receive processing and amplifying based on Ethernet protocol.
Wherein, described will be data based on Ethernet protocol based on the conversion of signals of xDSL agreement, and send to the described network equipment and to comprise:
With described will receive conversion of processing and amplifying, analog digital and xDSL physical layer process based on the signal of xDSL agreement after, be converted to data based on Ethernet protocol;
Described data based on Ethernet protocol are sent to the described network equipment by ethernet mac layer, ethernet physical layer and network interface.
Wherein, also comprise: between the circuit of signal of the described xDSL agreement of transmission and described coaxial cable, carry out impedance conversion.
Wherein, the described data based on Ethernet protocol that the network equipment is sent are converted to the signal based on the xDSL agreement, and send to broad access network gate by coaxial cable and send and comprise:
Described signal based on the xDSL agreement is mixed with TV signal, described mixed signal is transmitted in described coaxial cable;
By low-pass filtering from described mixed signal, separate obtain described based on the xDSL agreement signal and send to broad access network gate, from described mixed signal, separate obtaining described TV signal by high-pass filtering.
Wherein, the described broad access network gate of described reception comprises by the signal based on the xDSL agreement that coaxial cable sends:
The signal based on the xDSL agreement that described broad access network gate is sent mixes with TV signal, and described mixed signal is transmitted in described coaxial cable;
By low-pass filtering from described mixed signal, separate obtain described based on the xDSL agreement signal and receive, from described mixed signal, separate obtaining described TV signal and sending to TV by high-pass filtering.
The present invention also provides a kind of data insertion system, comprise: broadband access Modem and broad access network gate, described broadband access Modem, be used for the data based on Ethernet protocol that the network equipment sends are converted to signal based on asymmetric subscriber's line xDSL agreement, and send to described broad access network gate by coaxial cable; Also being used to receive the signal based on the xDSL agreement that described broad access network gate sends by coaxial cable, be data based on Ethernet protocol with described conversion of signals based on the xDSL agreement, and to described network equipment transmission.
Wherein, also comprise:
The first impedance conversion module between described broadband access Modem and coaxial cable, is used for being used to transmit between the circuit of signal of described xDSL agreement and described coaxial cable and carrying out impedance conversion at described broadband access Modem;
The second impedance conversion module between described broad access network gate and coaxial cable, is used for being used to transmit between the circuit of signal of xDSL agreement and described coaxial cable and carrying out impedance conversion at described broad access network gate.
Wherein, also comprise first signal mixer, between described broadband access Modem and coaxial cable, be used for described signal based on the xDSL agreement is mixed with TV signal, described mixed signal is transmitted in described coaxial cable; Also be used for when receiving mixed signal, from described mixed signal, separate to obtain based on the signal of xDSL agreement and send to described broadband access Modem by low-pass filtering, from described mixed signal, separate obtaining TV signal and sending to TV by high-pass filtering.
Wherein, also comprise the secondary signal blender, between described broad access network gate and coaxial cable, be used for the signal based on the xDSL agreement that described broad access network gate sends is mixed with TV signal, described mixed signal is transmitted in described coaxial cable; Also be used for when receiving mixed signal, from described mixed signal, separate obtaining based on the signal of xDSL agreement and send to broad access network gate by low-pass filtering, from described mixed signal, separate obtaining TV signal by high-pass filtering.
Compared with prior art, the present invention has the following advantages:
By between based on the data of Ethernet protocol and signal, changing based on the xDSL agreement, to in coaxial cable, transmit based on the modulation signal of xDSL agreement, make the cable TV coaxial net realize data and insert, provide a kind of the solution of a coaxial line to the family passed through in multiple business such as digital cable TV, bi-directional data access for user terminal.In addition, the ADSL/VDSL technology that directly adopts present scale to use among the present invention, technology maturity height, gateway and modem can directly be used off-the-shelf and be done simple transformation or finish impedance conversion and high low-pass filtering by increasing attachment version, compatible good, cost advantage is obvious.At last, exclusively enjoy bandwidth between the user, bandwidth is guaranteed, good confidentiality, and unique user fault or problem can not influence whole net, and do not have the formation network of passive EoC under the unmatched situation of impedance from the ring problem.
Description of drawings
Fig. 1 is the structural representation of passive EoC network in the prior art;
Fig. 2 is the structural representation of data insertion system among the present invention;
Fig. 3 is the flow chart of data cut-in method among the present invention;
Fig. 4 is the flow chart that the network equipment sends data among the present invention to broad access network gate by broadband access Modem;
Fig. 5 is the flow chart that broad access network gate sends data among the present invention to broadband access Modem.
Embodiment
The invention discloses a kind of data cut-in method and data insertion system, it is based on xDSL such as ADSL (the asymmetric subscriber's line of Asymmetry Digital Subscriber Loop) or VDSL (Very HighSpeed ADSL/DSL, Very High Speed Digital Subscriber Line) technology with and the mutation technology, realize HFC (Hybrid Fiber Coax Hybrid Fiber and Coax Network HFC) network wideband access system.This system can directly use xDSL system such as the ADSL/VDSL system that is used in a large number now, by changing between based on the data of Ethernet protocol and the signal based on the xDSL agreement, will transmit in coaxial cable based on the signal of xDSL agreement.
Data insertion system among the present invention comprises broadband access Modem and broad access network gate, and broadband access Modem and broad access network gate lay respectively at the two ends of coaxial cable, and is connected with coaxial cable by telephone wire.
Concrete, broadband access Modem is connected with the network equipment, and the data based on Ethernet protocol of network equipment transmission are converted to signal based on asymmetric subscriber's line xDSL agreement, and sends to broad access network gate by coaxial cable; Also be used to receive broad access network gate by the signal that coaxial cable sends, will be data based on the conversion of signals of xDSL agreement, and send to the described network equipment based on Ethernet protocol based on the xDSL agreement.
In addition, in this data insertion system, also comprise:
The first impedance conversion module between described broadband access Modem and coaxial cable, is used for being used to transmit between the telephone wire of described xDSL protocol signal and described coaxial cable and carrying out impedance conversion at described broadband access Modem; The second impedance conversion module between described broad access network gate and coaxial cable, is used for being used to transmit between the telephone wire of xDSL protocol signal and described coaxial cable and carrying out impedance conversion at described broad access network gate.By in data insertion system, adding above-mentioned impedance conversion module, can on the basis of above-mentioned data insertion system, further improve transmission rate, add longer transmission distance.
In addition, in this data insertion system, also comprise:
First signal mixer between broadband access Modem and coaxial cable, is used for the signal based on the xDSL agreement that broadband access Modem sends is mixed with TV signal, and described mixed signal is transmitted in described coaxial cable; Also be used for when coaxial cable receives mixed signal, from described mixed signal, separate to obtain based on the signal of xDSL agreement and send to described broadband access Modem by low-pass filtering, from described mixed signal, separate obtaining TV signal and sending to TV by high-pass filtering.
The secondary signal blender between broad access network gate and coaxial cable, is used for the signal based on the xDSL agreement that broad access network gate sends is mixed with TV signal, and described mixed signal is transmitted in described coaxial cable; Also be used for when receiving mixed signal, from described mixed signal, separate obtaining based on the signal of xDSL agreement and send to broad access network gate by low-pass filtering, from described mixed signal, separate obtaining TV signal by high-pass filtering.
Below in conjunction with a concrete application scenarios, the specific implementation of the data insertion system among the present invention is described.
As shown in Figure 2, data insertion system among the present invention is primarily aimed at the hfc plant of star, be made of broad access network gate 10 and broadband access Modem 20, the coaxial cable interface of broad access network gate 10 and broadband access Modem 20 is realized based on the ADSL/VDSL technology; Here be that DSLAM (Digital subscriber line access multiplexer, Digital Subscriber Line Access Multiplexer) describes for example with the broad access network gate.
The corridor place that broad access network gate 10 can be installed in hfc plant uses, and supports Ethernet interface, is connected with the data network equipment that is positioned at cable television network front end or sub-headend machine room or optical node by optical fiber or netting twine, realizes network insertion; It is 1 the road or multi-channel A SL/VDSL signal that broad access network gate 10 utilizes the ADSL/VDSL technology that network packet is modulated frequency conversion respectively, and mix with 1 road or multi-channel TV signals respectively, mixed signal is sent in the cable TV subscriber family by coaxial cable 30 distribution networks.
Also comprise the first impedance conversion module 40 in this system, between broadband access Modem 20 and coaxial cable 30, be used for carrying out impedance conversion at the telephone wire and 30 of the coaxial cables that are used to transmit described ADSL/VDSL protocol signal of broadband access Modem 20.Concrete, between the telephone line impedance of 75 ohmages of coaxial cable 30 and telephone wire, carry out impedance conversion.
Also comprise the second impedance conversion module 50 in this system, between broad access network gate 10 and coaxial cable 30, be used for carrying out impedance conversion at the telephone wire and 30 of the coaxial cables that are used to transmit the ADSL/VDSL protocol signal of broad access network gate 10.Concrete, between the telephone line impedance of 75 ohmages of coaxial cable 30 and telephone wire, carry out impedance conversion.
Also comprise first signal mixer 60 in this system, between the first impedance conversion module 40 and coaxial cable 30, be used for the signal based on the ADSL agreement that broadband access Modem 20 sends is mixed with TV signal, described mixed signal is transmitted in coaxial cable 30.It further can comprise high pass filter and low pass filter, when from coaxial cable 30, receiving mixed signal, from mixed signal, separate to obtain based on the signal of ADSL/VDSL agreement and send to broadband access Modem 20 by low-pass filtering, from mixed signal, separate obtaining TV signal and sending to TV by high-pass filtering.
Also comprise secondary signal blender 70 in this system, between the second impedance conversion module 50 and coaxial cable 30, be used for the signal based on the ADSL/VDSL agreement that broad access network gate 10 sends is mixed with TV signal, described mixed signal is transmitted in coaxial cable 30.It further can comprise high pass filter and low pass filter, when from coaxial cable 30, receiving mixed signal, from mixed signal, separate to obtain based on the signal of ADSL/VDSL agreement and send to broad access network gate 10 by low-pass filtering, from mixed signal, separate obtaining TV signal by high-pass filtering.
The present invention also provides a kind of data cut-in method, as shown in Figure 3, comprising:
The data based on Ethernet protocol that step s301, broadband access Modem send the network equipment are converted to the signal based on the xDSL agreement, and send to broad access network gate by coaxial cable.
Step s302, broadband access Modem receive the signal based on the xDSL agreement that described broad access network gate sends by coaxial cable, be data based on Ethernet protocol with described conversion of signals based on the xDSL agreement, and to described network equipment transmission.
Below at first send data instance by broadband access Modem to broad access network gate, the data cut-in method among the present invention is described with the network equipment.Concrete, as shown in Figure 4, comprising:
The Ethernet data of step s401, the network equipment is received broadband access Modem by the RJ45 network interface connector, through ethernet physical layer and MAC (Medium Access Control, the medium access control) layer, arrive the CPU (Central Processing Unit, CPU) of broadband access Modem.The RJ45 network interface connector here refers to use modular jack or the plug by 8 positions (8 pin) of international connector standard definition.
The CPU of step s402, broadband access Modem converts Ethernet data to the ADSL/VDSL signal, is generally ATM (Asynchronous Transfer Mode, asynchronous transfer mode) cell.
Step s403, broadband access Modem carry out the digital-to-analogue conversion of AD/DA and receive amplifying circuit handling after the ADSL/VDSL signal is carried out physical layer process (as convolution and interweave etc.) by ADSL/VDSL.
Step s404, broadband access Modem send to first impedance transformer to the ADSL/VDSL signal, and the first impedance conversion unit carries out impedance conversion and transformer isolation.Concrete, the impedance conversion unit becomes to be fit to 75 ohmages of coaxial cable to the impedance of system from the phone impedance conversion.
ADSL/VDSL signal after step s405, impedance conversion unit will be handled sends to first signal mixer, and first signal mixer is delivered in the coaxial cable the ADSL/VDSL signal and the TV signal hybrid concurrency that receive.
Step s406, secondary signal blender receive the mixed signal in the coaxial cable, carry out the ADSL/VDSL signal in the picked up signal after the high-pass filtering, carry out the TV signal in the picked up signal after the low-pass filtering.
Step s407, secondary signal blender send to second impedance transformer to the ADSL/VDSL signal, and second impedance transformer carries out impedance conversion and transformer isolation.Concrete, second impedance transformer is transformed into the phone impedance to the impedance of system from 75 ohmages that are fit to coaxial cable.
Step s408, second impedance transformer send to broad access network gate with the ADSL/VDSL signal, and broad access network gate sends to the ADSL/VDSL signal in the network.
Below at first send data instance to broadband access Modem, the data cut-in method among the present invention is described with broad access network gate.Concrete, as shown in Figure 5, comprising:
Step s501, broad access network gate with the ADSL/VDSL signal that receives modulate respectively frequency conversion be 1 the road or the network of multi-channel A SL/VDSL signal to different network-termination device places send.
Step s502, second impedance transformer receive the ADSL/VDSL signal that broad access network gate sends, and send to the secondary signal blender.Second impedance transformer carries out impedance conversion and transformer isolation to the ADSL/VDSL signal that receives, and is concrete, and second impedance transformer becomes to be fit to 75 ohmages of coaxial cable to the impedance of system from the phone impedance conversion.
Step s503, secondary signal blender send in the coaxial cable after the ADSL/VDSL signal that receives and TV signal are mixed.
Step s504, first signal mixer receive the mixed signal in the coaxial cable, carry out the ADSL/VDSL signal in the picked up signal after the high-pass filtering, carry out the TV signal in the picked up signal after the low-pass filtering.
Step s505, first signal mixer send to first impedance transformer to the ADSL/VDSL signal, and first impedance transformer carries out impedance conversion and transformer isolation.Concrete, first impedance transformer is transformed into the phone impedance to the impedance of system from 75 ohmages that are fit to coaxial cable.
Step s506, first impedance transformer send to broadband access Modem with the ADSL/VDSL signal.
Step s507, broadband access Modem obtain the high-frequency modulation signal that comprises the IP packet in the ADSL/VDSL signal, and frequency conversion demodulates network packet based on the ADSL/VDSL technology, sends into network-termination device.Concrete, broadband access Modem with described will receive processing and amplifying, analog digital conversion and ADSL/VDSL physical layer process based on the data of ADSL/VDSL agreement after, be converted to data based on Ethernet protocol; Described data based on Ethernet protocol are sent to network-termination device by ethernet mac layer, ethernet physical layer and network interface.
Need to prove, in the foregoing description of the present invention, be that example is illustrated the specific embodiment of the present invention with ADSL/VDSL.In actual applications, can also be applied to ADSL/ADSL2/ADSL2+ and relevant HDSL (High-rate DSL thereof, high speed DSL)/network environment relevant such as SHDSL (Single-pair High-rate DSL, single to highspeed user's digital circuit) with the ADSL/VDSL technology in.
Among the present invention, by between based on the data of Ethernet protocol and signal, changing based on the xDSL agreement, to in coaxial cable, transmit based on the signal of xDSL agreement, make the cable TV coaxial net realize data and insert, provide a kind of the solution of a coaxial line to the family passed through in multiple business such as digital cable TV, bi-directional data access for user terminal.
In addition, spy of the present invention is at star-like hfc plant, directly adopt the xDSL technology of present scale use, avoided xDSL is done too big transformation, the technology maturity height, gateway and Modem can directly use off-the-shelf and do simple transformation or finish impedance conversion and high low-pass filtering by increasing attachment version, and compatible good, cost advantage is obvious.Reduce the distinctive influx noise problem of tree network simultaneously, guarantee that each user bandwidth exclusively enjoys, avoid seizing problem, safety problem and fault scaling problem based on the bandwidth of shared mechanism, thereby improved user satisfaction, make based on the broadband access system signal of coaxial network totallyer than xDSL, speed is faster.Under the situation of having used the suitable resistance conversion, can further accelerate transmission rate and improve transmission range.
At last, method among the present invention provides independently access bandwidth for each user, and provide perfect QoS to ensure and data encryption feature, the bandwidth of unique user is guaranteed, and the fault of unique user or problem can not influence whole net, do not have the formation network of passive EoC under the unmatched situation of impedance from the ring problem.Thereby solved existing hfc plant broadband access technology bandwidth sharing, can't guarantee each user's bandwidth, aspect problems such as confidentiality is poor, poor stability, improvement cost height.For wired operator provide a kind of access bandwidth height, improvement cost low, be easy to install the novel two-way net modification scheme of enforcement.Thereby make cable network operator that multiple two-way interaction value-added services such as video request program, video conference, broadband access network, online game can be provided for the domestic consumer easily.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprises that some instructions are used so that an equipment is carried out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (10)
1, a kind of data cut-in method is characterized in that, comprising:
The data based on Ethernet protocol that the network equipment is sent are converted to the signal based on the xDSL agreement, and send to broad access network gate by coaxial cable;
Receiving the signal based on the xDSL agreement that described broad access network gate sends by coaxial cable, be data based on Ethernet protocol with described conversion of signals based on the xDSL agreement, and to described network equipment transmission.
2, data cut-in method as claimed in claim 1 is characterized in that, the signal that the described data based on Ethernet protocol that the network equipment is sent are converted to based on asymmetric subscriber's line xDSL agreement comprises:
Receive the data that the network equipment sends through network interface, ethernet physical layer and ethernet mac layer based on Ethernet protocol;
Be converted to described data based on the signal of xDSL agreement and carry out xDSL physical layer process, digital-to-analogue conversion and receive processing and amplifying based on Ethernet protocol.
3, data cut-in method as claimed in claim 1 is characterized in that, described will be data based on Ethernet protocol based on the conversion of signals of xDSL agreement, and sends to the described network equipment and to comprise:
With described will receive conversion of processing and amplifying, analog digital and xDSL physical layer process based on the signal of xDSL agreement after, be converted to data based on Ethernet protocol;
Described data based on Ethernet protocol are sent to the described network equipment by ethernet mac layer, ethernet physical layer and network interface.
4, data cut-in method as claimed in claim 1 is characterized in that, also comprises: carry out impedance conversion between the circuit of signal of the described xDSL agreement of transmission and described coaxial cable.
5, data cut-in method as claimed in claim 1 is characterized in that, the described data based on Ethernet protocol that the network equipment is sent are converted to the signal based on the xDSL agreement, and sends to broad access network gate by coaxial cable and send and comprise:
Described signal based on the xDSL agreement is mixed with TV signal, described mixed signal is transmitted in described coaxial cable;
By low-pass filtering from described mixed signal, separate obtain described based on the xDSL agreement signal and send to broad access network gate, from described mixed signal, separate obtaining described TV signal by high-pass filtering.
6, data cut-in method as claimed in claim 1 is characterized in that, the described broad access network gate of described reception comprises by the signal based on the xDSL agreement that coaxial cable sends:
The signal based on the xDSL agreement that described broad access network gate is sent mixes with TV signal, and described mixed signal is transmitted in described coaxial cable;
By low-pass filtering from described mixed signal, separate obtain described based on the xDSL agreement signal and receive, from described mixed signal, separate obtaining described TV signal and sending to TV by high-pass filtering.
7, a kind of data insertion system, it is characterized in that, comprise: broadband access Modem and broad access network gate, described broadband access Modem, be used for the data based on Ethernet protocol that the network equipment sends are converted to signal based on asymmetric subscriber's line xDSL agreement, and send to described broad access network gate by coaxial cable; Also being used to receive the signal based on the xDSL agreement that described broad access network gate sends by coaxial cable, be data based on Ethernet protocol with described conversion of signals based on the xDSL agreement, and to described network equipment transmission.
8, data insertion system as claimed in claim 7 is characterized in that, also comprises:
The first impedance conversion module between described broadband access Modem and coaxial cable, is used for being used to transmit between the circuit of signal of described xDSL agreement and described coaxial cable and carrying out impedance conversion at described broadband access Modem;
The second impedance conversion module between described broad access network gate and coaxial cable, is used for being used to transmit between the circuit of signal of xDSL agreement and described coaxial cable and carrying out impedance conversion at described broad access network gate.
9, data insertion system as claimed in claim 7, it is characterized in that, also comprise first signal mixer, between described broadband access Modem and coaxial cable, be used for described signal based on the xDSL agreement is mixed with TV signal, described mixed signal is transmitted in described coaxial cable; Also be used for when receiving mixed signal, from described mixed signal, separate to obtain based on the signal of xDSL agreement and send to described broadband access Modem by low-pass filtering, from described mixed signal, separate obtaining TV signal and sending to TV by high-pass filtering.
10, data insertion system as claimed in claim 7, it is characterized in that, also comprise the secondary signal blender, between described broad access network gate and coaxial cable, be used for the signal based on the xDSL agreement that described broad access network gate sends is mixed with TV signal, described mixed signal is transmitted in described coaxial cable; Also be used for when receiving mixed signal, from described mixed signal, separate obtaining based on the signal of xDSL agreement and send to broad access network gate by low-pass filtering, from described mixed signal, separate obtaining TV signal by high-pass filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102120303A CN101388818A (en) | 2008-09-12 | 2008-09-12 | Data access method and data access system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102120303A CN101388818A (en) | 2008-09-12 | 2008-09-12 | Data access method and data access system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101388818A true CN101388818A (en) | 2009-03-18 |
Family
ID=40478014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102120303A Pending CN101388818A (en) | 2008-09-12 | 2008-09-12 | Data access method and data access system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101388818A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378073A (en) * | 2010-08-12 | 2012-03-14 | 景略半导体(上海)有限公司 | Ethernet over cable (EoC) system, and co-cable compatible method for EoC system and existing system |
| CN102710870A (en) * | 2011-05-05 | 2012-10-03 | 北京科络捷通讯产品有限责任公司 | Impedance matcher for detecting device of xDSL (x digital subscriber line) voice separator |
| CN102833515A (en) * | 2012-09-04 | 2012-12-19 | 深圳市双赢伟业科技股份有限公司 | EOC (Ethernet over Coax) equipment |
| WO2014161510A2 (en) * | 2013-04-05 | 2014-10-09 | Huawei Technologies Co., Ltd. | Authentication and initial key exchange in ethernet passive optical network over coaxial network |
| CN106961348A (en) * | 2017-02-15 | 2017-07-18 | 金钱猫科技股份有限公司 | The management method and system of a kind of user terminal |
-
2008
- 2008-09-12 CN CNA2008102120303A patent/CN101388818A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378073A (en) * | 2010-08-12 | 2012-03-14 | 景略半导体(上海)有限公司 | Ethernet over cable (EoC) system, and co-cable compatible method for EoC system and existing system |
| CN102378073B (en) * | 2010-08-12 | 2015-07-01 | 景略半导体(上海)有限公司 | Ethernet over cable (EoC) system, and co-cable compatible method for EoC system and existing system |
| CN102710870A (en) * | 2011-05-05 | 2012-10-03 | 北京科络捷通讯产品有限责任公司 | Impedance matcher for detecting device of xDSL (x digital subscriber line) voice separator |
| CN102833515A (en) * | 2012-09-04 | 2012-12-19 | 深圳市双赢伟业科技股份有限公司 | EOC (Ethernet over Coax) equipment |
| WO2014161510A2 (en) * | 2013-04-05 | 2014-10-09 | Huawei Technologies Co., Ltd. | Authentication and initial key exchange in ethernet passive optical network over coaxial network |
| WO2014161510A3 (en) * | 2013-04-05 | 2014-12-04 | Huawei Technologies Co., Ltd. | Authentication and initial key exchange in ethernet passive optical network over coaxial network |
| US9270651B2 (en) | 2013-04-05 | 2016-02-23 | Futurewei Technologies, Inc. | Authentication and initial key exchange in ethernet passive optical network over coaxial network |
| US9838363B2 (en) | 2013-04-05 | 2017-12-05 | Futurewei Technologies, Inc. | Authentication and initial key exchange in ethernet passive optical network over coaxial network |
| CN106961348A (en) * | 2017-02-15 | 2017-07-18 | 金钱猫科技股份有限公司 | The management method and system of a kind of user terminal |
| CN106961348B (en) * | 2017-02-15 | 2020-06-02 | 金钱猫科技股份有限公司 | User terminal management method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5557319A (en) | Subscriber return system for CATV full service networks | |
| US8300654B2 (en) | Broadband multi-drop local network, interface and method for multimedia access | |
| CN100448213C (en) | HFC network wideband access system based on MoCA technology | |
| US9001837B2 (en) | Extending a local area network | |
| CN101283483A (en) | Bridging coaxial cable networks | |
| CN101283594A (en) | Communicating over coaxial cable networks | |
| EP1099349B1 (en) | Method and apparatus for data communication | |
| CN101388818A (en) | Data access method and data access system | |
| US20030005450A1 (en) | Method and system for connecting high speed data communication signals to a residentual gateway | |
| CN102790709A (en) | Coaxial access network unit device with WIFI (wireless fidelity) | |
| CN101883297A (en) | Digital broadband integration and superposition system and method thereof | |
| CN202004923U (en) | Three-network integrated multi-service optoelectronic integration network element | |
| CN201928398U (en) | FEoC access system for two-way transformation of broadcasting and television network | |
| CN102694783A (en) | Tri-network integrated multi-service photoelectric integrated network element | |
| CN101257543A (en) | EOC system based on WLAN802.11X standard | |
| CN202737864U (en) | Relay device suitable for point-to-multipoint broadband coaxial access | |
| CN200941630Y (en) | HFC net high frequency wide band access system | |
| Lawrence et al. | Broadband access to the home on copper | |
| WO2000039948A1 (en) | Wiring architecture for providing combined voice and vdsl service to residential buildings | |
| US7635270B2 (en) | Method and apparatus for transferring digital packet-based data | |
| US7099349B1 (en) | xDSL-based communication system | |
| CN202737898U (en) | Office end device suitable for coaxial wideband multi-service access | |
| CN103117908A (en) | Office-end device suitable for coaxial broadband service multi-business access | |
| CN108282387A (en) | A kind of 10,000,000,000 coaxial access systems | |
| CN204305054U (en) | Merge the integrated broadband access system of EPON and EOC |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090318 |