CN102684968B - System and method for fusing cable television network and IP (internet protocol) network to transmit IP data - Google Patents
System and method for fusing cable television network and IP (internet protocol) network to transmit IP data Download PDFInfo
- Publication number
- CN102684968B CN102684968B CN201110053538.5A CN201110053538A CN102684968B CN 102684968 B CN102684968 B CN 102684968B CN 201110053538 A CN201110053538 A CN 201110053538A CN 102684968 B CN102684968 B CN 102684968B
- Authority
- CN
- China
- Prior art keywords
- network
- cable
- module
- data processing
- processing module
- 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.)
- Expired - Fee Related
Links
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention relates to a system and a method for fusing a cable television network and an IP (internet protocol) network to transmit IP data. The system comprises a dual-mode access device and a front-end server, wherein the dual-mode access device is provided with two access modes of a cable television network and an IP network; the dual-mode access device is taken as an access gateway by the IP terminal in a local area network; an internet server and the IP of the terminal are connected by the dual-mode access device; the dual-mode access device can be connected with the IP terminals of a plurality of local area networks by an inside IP address and IP tunnel connection is built with a former server by dual-mode access device through an outside IP address; uplink IP data is packaged into the tunnel to be transmitted; TS dataflow is received by the cable television network; downlink IP data is analyzed; and a network address conversion function is carried out on the IP data of the local network by the dual-mode access device. According to the system and the method, the abundant bandwidth resource of the cable television network can be fully utilized by users, and the use cost of users is slightly increased.
Description
Technical field
The present invention relates to cable TV network and IP network technology, particularly merge the system and method for cable TV network and IP network transmission of IP data.
Background technology
Along with the development of the Internet, user is increasing to the demand of the network bandwidth, and the ADSL (Asymmetric Digital Subscriber Line) (ADSL) generally adopting the at present bandwidth of registering one's residence is generally 2M, be difficult to meet the demand of user to high definition audio frequency and video business and high-speed data service.Cable TV network is as the important component part of national information infrastructure, is sensible huge numbers of families' the most universal information tool and mass information carrier the most easily.Cable TV network has abundant bandwidth resources, can carry a large amount of high definitions and SD broadcast TV program, simultaneously can transmitting high speed IP data service.The bidirectional rebuilding of cable TV network is progressively in pilot, as adopt the technology such as DOCSIS, EOC to realize IP network broadband access, but because the cost of bidirectional rebuilding is higher, the still unidirectional cable TV network that user generally uses at present, is difficult to access IP data service by cable TV network.
Existing cable TV network broadband access network scheme comprises: DOCSIS and EPON+EOC
As shown in Figure 1, Fig. 1 is the cable TV network broadband access schematic diagram based on DOCSIS.DOCSIS system is mainly made up of IP network, Dynamic Host Configuration Protocol server, CMTS, cable TV network and user terminal CM.CMTS and CM interconnect by cable TV network, and it is descending takies a frequency and cable TV together passes down, up within the scope of 5～65MHz.DOCSIS scheme has been used for many years in North America, by signal is carried out to QPSK/QAM modulation, carries out transmitted in both directions at HFC low frequency end.Cable TV network based on DOCIS is due to the variation of its network configuration, particularly the be incorporated as network design, debugging, detection, maintenance of return path have been brought new intension and challenge, how to be a difficult problem by the two-way cable TV network network platform of appropriate design, correct debugging, high maintenance structure high reliability, this technical sophistication is not part easy thing to vast cable technology personnel.Meanwhile, DOCSIS is mainly used in North America, and equipment manufacturing quotient order is few, and cost and the O&M cost of equipment are higher.DOCSIS core technology is mainly abroad grasped.
As shown in Figure 2, the Two-way Reconstruction in CATV Network schematic diagram based on EPON+EOC.Dispose optical line terminal (OLT) equipment of EPON at secondary front end, light signal arrives community optical node by tree-like passive optical distribution network; According to the coverage of optical node, be chosen in optical node place and place optical branching device, further extension of optical fiber is placed to optical network unit (ONU) to corridor, also can be chosen in optical node place and place ONU, finally register one's residence by EoC.The subject matter that EOC technology exists comprises frequency and frequency spectrum occupancy problem, and high frequency E OC exists some problems aspect network adaptability.Not yet unified before EOC access standard mesh, each producer achieves the goal by different approaches, and because EOC lacks the practice test in catenet, the stability of equipment and compatibility are not clearly come to a conclusion at present temporarily.Supporting multi-services ability also has concrete test, aspect sizable application and network management, is also having problems.Bimodulus access device is a kind of access device that can access respectively IP network and cable TV network, but in general bimodulus access device, two network paths are separate, and the data of each path independently access and transmit.IP data can only be transmitted in IP network path, cannot utilize the bandwidth resources of cable TV network.The access bandwidth of current broadband IP network is generally below 4,000,000, be difficult to meet HDTV (High-Definition Television) program request, time shift and the demand of business such as watch, and the downlink bandwidth of cable TV network can reach tens and even up to a hundred million, if can utilize wired TV network transmission IP data, realize the IP data fusion transmission of IP network and cable TV network, will enrich greatly bandwidth ability and the broadband audio frequency and video service resources of user's access.
Summary of the invention
The object of the invention is to, propose to merge the system and method for cable TV network and IP network transmission of IP data, so that user can make full use of the bandwidth resources of enriching of cable TV network, increase customer using cost that again can be less, make user on the basis of cable TV network and IP network, realize the transparent transmission of IP data, greatly increase the descending access bandwidth of user.
For achieving the above object, the present invention proposes to merge the system of cable TV network and IP network transmission of IP data, comprising: the bimodulus access device with cable TV network and two kinds of access waies of IP network; Described bimodulus access device comprises: IP network module, cable TV network receiver module and Network conf iotag. module;
It is characterized in that, this system also comprises: front-end server; Described front-end server comprises: upstream data processing module and downlink data processing module;
Described Network conf iotag. module, obtains cable TV network down going channel parameter for the downlink data processing module by described, configuration of IP parameters for tunnel, and set up IP tunnel with described front-end server and be connected;
Described IP network module, comprise TCP/IP network protocol stack, for receiving the up IP packet of LAN IP terminal, carry out network address translation and forward described up IP packet by the IP tunnel of described Network conf iotag. module foundation to described upstream data processing module by described TCP/IP network protocol stack;
Described upstream data processing module, for forwarding up IP data to destination server by IP network;
Described downlink data processing module, the downlink data sending for accepting destination server, becomes TS transport stream to be transmitted to cable TV network receiver module by cable TV network downstream IP data encapsulation;
Described cable TV network receiver module, for the cable TV network down going channel parameter of obtaining from described downlink data processing module according to described Network conf iotag. module, obtain by tuning, demodulation multiplexing process the TS transport stream that described downlink data processing module is packaged into, and TS transport stream is resolved and obtained downstream IP packet, forward by the backward LAN IP terminal of reverse network address translation.
Described cable TV network down going channel parameter comprises: frequency, symbol rate, modulation system and Packet Identifier.
For addressing the above problem, the present invention also proposes to merge the method for cable TV network and IP network transmission of IP data, and the method utilization has bimodulus access device and the front-end server of cable TV network and two kinds of access waies of IP network and realizes; Described bimodulus access device comprises: IP network module, cable TV network receiver module and Network conf iotag. module; Described front-end server comprises: upstream data processing module and downlink data processing module; Concrete steps comprise:
Step 1): described Network conf iotag. module is obtained cable TV network down going channel parameter by described downlink data processing module, configuration of IP parameters for tunnel, and set up IP tunnel with front-end server and be connected;
Step 2): described IP network module receives the up IP packet of LAN IP terminal, carrying out network address translation by the TCP/IP network protocol stack in IP network module, and by described step 1) IP tunnel set up forwards described up IP packet to described upstream data processing module;
Step 3): described upstream data processing module forwards described step 2 by IP network) in up IP packet to destination server;
Step 4): described downlink data processing module is accepted the downlink data that destination server sends, and becomes TS transport stream to be transmitted to described cable TV network receiver module by cable TV network downstream IP data encapsulation;
Step 5): the cable TV network down going channel parameter that described cable TV network receiver module obtains from downlink data processing module according to Network conf iotag. module, obtain described step 4 by tuning, demodulation multiplexing process) the TS transport stream that is packaged into, and TS transport stream is resolved and obtained downstream IP packet, forward by the backward LAN IP terminal of reverse network address translation.
The invention has the advantages that, a kind of system and method that merges cable TV network and IP network transmission of IP data is provided, up IP is transmitted by IP network, downstream IP data are passed through wired TV network transmission, make full use of the high-speed downstream bandwidth of cable TV network, meet the demand of user to broadband IP access, make user can make full use of the bandwidth resources of enriching of cable TV network, increase customer using cost that again can be less.
Brief description of the drawings
Fig. 1 is the cable TV network broadband access schematic diagram based on DOCSIS;
Fig. 2 is the Two-way Reconstruction in CATV Network schematic diagram based on EPON+EOC;
Fig. 3 is the system diagram that merges cable TV network and IP network transmission of IP data;
Fig. 4 is bimodulus access device module map;
Fig. 5 is front-end server module map;
Fig. 6 is the System Implementation illustration of fusion cable TV network of the present invention and IP network transmission of IP data;
Fig. 7 is fusion cable TV network based on Fig. 6 and the transmitting procedure figure of IP network transmission of IP data.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 3, Fig. 3 is the system diagram that merges cable TV network and IP network transmission of IP data.IP terminal in local area network (LAN) is using described bimodulus access device as IAD, and is connected with the IP of Internet Server and terminal by the realization of bimodulus access device, IP terminal in local area network (LAN) all employing IP network transmit.Described bimodulus access device can connect multiple LAN IP terminals by implicit IP address, by outside ip address connecting Internet.Described bimodulus access device is set up IP tunnel with front-end server and is connected and transmits up IP data, is received TS data flow and is parsed downstream IP data by cable TV network.Described bimodulus access device carries out up IP data network address translation and is encapsulated in IP tunnel, and the downstream IP data by receiving in cable TV network and parsing are carried out reverse network address translation and are transmitted to corresponding LAN IP terminal.
As shown in Figure 4, Fig. 4 is bimodulus access device module map.Bimodulus access device comprises: IP network module, cable TV network receiver module and Network conf iotag. module.
Described IP network module comprises TCP/IP network protocol stack, supports IP tunnel and network address translation and IP data retransmission function.
Described cable TV network receiver module is by tuning, and demodulation multiplexing process, obtains TS transmit flow data from cable TV network, and parses downstream IP data from TS transport stream.
Described Network conf iotag. module configuration cable TV network down going channel parameter, configuration of IP parameters for tunnel, thus the IP data transparent transmission passage that merges cable TV network and IP network is set up in configuration.
As shown in Figure 5, Fig. 5 is front-end server module map.Comprise: upstream data processing module and downlink data processing module.Described upstream data processing module, for forwarding up IP data to destination server by IP tunnel; Described downlink data processing module, the downlink data sending for accepting destination server, becomes TS transport stream to be transmitted to cable TV network receiver module by cable TV network downstream IP data encapsulation.
As shown in Figure 6, Fig. 6 is the System Implementation illustration of fusion cable TV network of the present invention and IP network transmission of IP data.The Intranet IP of bimodulus access device is 192.168.0.1, and outer net IP is 1.1.1.1.PC is in LAN, and IP address is 192.168.0.2, and gateway is the internal address 192.168.0.1 of bimodulus access device.Front-end server IP is 2.2.2.2, sets up IP tunnel be connected with the bimodulus access device that uses outer net IP1.1.1.1. in order to set up IP tunnel, bimodulus access device has configured virtual IP address 10.10.10.1.Web page server IP is 3.3.3.3.The IP of IPQAM is 4.4.4.4.Bimodulus access device receives by cable of cable TV line the TS transport stream that IPQAM issues.
As shown in Figure 7, Fig. 7 is fusion cable TV network based on Fig. 6 and the transmitting procedure figure of IP network transmission of IP data.Comprise the steps:
1) bimodulus access device forward end Convergence gateway channel registration, obtain cable TV network down going channel parameter from front-end server, and set up IP tunnel with front-end server and be connected, the two ends IP of IP tunnel is respectively 1.1.1.1 and 2.2.2.2, has increased virtual IP address 10.10.10.1 for setting up tunnel bimodulus access device.
2) IP data are mail to IAD by PC, namely bimodulus access device, the IP address 3.3.3.3 that the object IP address of IP data is web page server.
3) bimodulus access device receives the up IP data of PC, carry out network address translation, IP data destination address after conversion is constant, source address is converted to the virtual IP address 10.10.10.1 of bimodulus access device, IP data after conversion are carried out to IP tunnel encapsulation, the source address of the IP tunnel data after encapsulation is 1.1.1.1, and destination address is 2.2.2.2, has encapsulated the IP data after network address translation in IP tunnel data;
4) IP tunnel data are mail to front-end convergence gateway by bimodulus access device
5) front-end server carries out tunnel deblocking and forwards IP data after decapsulation to web page server 3.3.3.3 corresponding to its object IP address, and the downstream IP data of web page server send to front-end server;
6) the downstream IP data of web page server are packaged into TS transport stream by front-end server, and send to IPQAM by IP network;
7) IPQAM issues the TS stream receiving by cable TV network;
8) bimodulus access device is according to the cable TV network down going channel parameter of obtaining from front-end server, use in cable TV network and receive TS transport stream, and parse downstream IP data, the destination address of downstream IP data is the virtual IP address 10.10.10.1 of bimodulus access device, the downstream IP data that receive are carried out reverse network address translation by bimodulus access device, and destination address is converted to 192.168.0.2;
9) the IP data after reverse network address translation are sent to the PC that has 192.168.0.2IP address by bimodulus access device.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is modified or is equal to replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (3)
1. the system that merges cable TV network and IP network transmission of IP data, comprising: the bimodulus access device with cable TV network and two kinds of access waies of IP network; Described bimodulus access device comprises: IP network module, cable TV network receiver module and Network conf iotag. module;
It is characterized in that, this system also comprises: front-end server; Described front-end server comprises: upstream data processing module and downlink data processing module;
Described Network conf iotag. module, obtains cable TV network down going channel parameter for the downlink data processing module by described, configuration of IP parameters for tunnel, and set up IP tunnel with described front-end server and be connected;
Described IP network module, comprise TCP/IP network protocol stack, for receiving the up IP packet of LAN IP terminal, carry out network address translation and forward described up IP packet by the IP tunnel of described Network conf iotag. module foundation to described upstream data processing module by described TCP/IP network protocol stack;
Described upstream data processing module, for forwarding up IP data to destination server by IP network;
Described downlink data processing module, the downlink data sending for accepting destination server, becomes TS transport stream to be transmitted to cable TV network receiver module by cable TV network downstream IP data encapsulation;
Described cable TV network receiver module, for the cable TV network down going channel parameter of obtaining from described downlink data processing module according to described Network conf iotag. module, obtain by tuning, demodulation multiplexing process the TS transport stream that described downlink data processing module is packaged into, and TS transport stream is resolved and obtained downstream IP packet, forward by the backward LAN IP terminal of reverse network address translation.
2. the system of fusion cable TV network according to claim 1 and IP network transmission of IP data, is characterized in that, described cable TV network down going channel parameter comprises: frequency, symbol rate, modulation system and Packet Identifier.
3. merge the method for cable TV network and IP network transmission of IP data, the method utilization has bimodulus access device and the front-end server of cable TV network and two kinds of access waies of IP network and realizes; Described bimodulus access device comprises: IP network module, cable TV network receiver module and Network conf iotag. module; Described front-end server comprises: upstream data processing module and downlink data processing module; Concrete steps comprise:
Step 1): described Network conf iotag. module is obtained cable TV network down going channel parameter by described downlink data processing module, configuration of IP parameters for tunnel, and set up IP tunnel with front-end server and be connected;
Step 2): described IP network module receives the up IP packet of LAN IP terminal, carrying out network address translation by the TCP/IP network protocol stack in IP network module, and by described step 1) IP tunnel set up forwards described up IP packet to described upstream data processing module;
Step 3): described upstream data processing module forwards described step 2 by IP network) in up IP packet to destination server;
Step 4): described downlink data processing module is accepted the downlink data that destination server sends, and becomes TS transport stream to be transmitted to described cable TV network receiver module by cable TV network downstream IP data encapsulation;
Step 5): the cable TV network down going channel parameter that described cable TV network receiver module obtains from downlink data processing module according to Network conf iotag. module, obtain described step 4 by tuning, demodulation multiplexing process) the TS transport stream that is packaged into, and TS transport stream is resolved and obtained downstream IP packet, forward by the backward LAN IP terminal of reverse network address translation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110053538.5A CN102684968B (en) | 2011-03-07 | 2011-03-07 | System and method for fusing cable television network and IP (internet protocol) network to transmit IP data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110053538.5A CN102684968B (en) | 2011-03-07 | 2011-03-07 | System and method for fusing cable television network and IP (internet protocol) network to transmit IP data |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102684968A CN102684968A (en) | 2012-09-19 |
| CN102684968B true CN102684968B (en) | 2014-08-06 |
Family
ID=46816359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110053538.5A Expired - Fee Related CN102684968B (en) | 2011-03-07 | 2011-03-07 | System and method for fusing cable television network and IP (internet protocol) network to transmit IP data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102684968B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227969B (en) * | 2013-05-09 | 2016-09-14 | 青岛青知企业管理咨询有限公司 | The television signal transmission device of compatible for wired television transmission and network TV transmission |
| CN103312599A (en) * | 2013-05-09 | 2013-09-18 | 李冰 | Multi-network routing gateway system |
| CN104601481B (en) * | 2013-10-30 | 2018-02-16 | 中国科学院声学研究所 | A kind of flow allocation method in multichannel access network |
| CN104702467B (en) * | 2015-02-14 | 2018-05-04 | 广州珠江数码集团股份有限公司 | A kind of reverse link test method and system based on C-DOCSIS networking structures |
| CN106357494B (en) * | 2016-10-10 | 2022-10-21 | 广东省广播电视网络股份有限公司 | Broadcast television wired and wireless fusion broadband system and method |
| CN108282397A (en) * | 2017-12-26 | 2018-07-13 | 深圳数字太和科技有限公司 | A kind of hybrid network gateway for supporting plurality of access modes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1668037A (en) * | 2004-03-10 | 2005-09-14 | 浙江大学 | IP network and cable television network merged access method and equipment |
| US20060112161A1 (en) * | 2002-07-08 | 2006-05-25 | Gerd Spalink | Convergence layers for network devices and method for transmitting data traffic |
| CN101197821A (en) * | 2006-12-05 | 2008-06-11 | 中兴通讯股份有限公司 | Method for implementing access network multicast in IPTV system |
-
2011
- 2011-03-07 CN CN201110053538.5A patent/CN102684968B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060112161A1 (en) * | 2002-07-08 | 2006-05-25 | Gerd Spalink | Convergence layers for network devices and method for transmitting data traffic |
| CN1668037A (en) * | 2004-03-10 | 2005-09-14 | 浙江大学 | IP network and cable television network merged access method and equipment |
| CN101197821A (en) * | 2006-12-05 | 2008-06-11 | 中兴通讯股份有限公司 | Method for implementing access network multicast in IPTV system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102684968A (en) | 2012-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102684968B (en) | System and method for fusing cable television network and IP (internet protocol) network to transmit IP data | |
| CN102546118B (en) | Business in a kind of C-DOCSIS system forwards and priority mapping method | |
| CN102739436B (en) | Unified network management system and method of hybrid fiber coaxial (hfc) network | |
| CN107959818B (en) | The data processing method of integrated terminal and integrated terminal | |
| CN101364914B (en) | Coaxial cable access and networking method based on HFC network | |
| CN108134916B (en) | A kind of data processing method of 4K terminal and 4K terminal | |
| CN102624560A (en) | Distributed-deployment and centralized-control cable TV (Television) network broadband access system | |
| CN101242674A (en) | An integrated service access system based on EPON and dual-mode STB | |
| CN108124158B (en) | The data processing method of multimedia terminal and multimedia terminal | |
| CN101742358A (en) | Method and device for testing quality of network television | |
| US20190268677A1 (en) | Hybrid Fiber Coaxial Node | |
| CN104469535A (en) | Broadcast video IP method and device based on C-DOCSIS system | |
| CN100471265C (en) | Television signal transmission access system based on passive optical network | |
| CN101296524B (en) | System and method for Ether-passive optical network bearing digital television program | |
| CN1131603C (en) | Wiring access method of broadband multimedia services | |
| CN108966003A (en) | A kind of method and apparatus of TV data processing | |
| CN101309152A (en) | Ethernet switching system based on cable TV transmission network | |
| CN105872779A (en) | Telecommunication clear stream acquiring software for Qinghe digital television head end | |
| CN201039192Y (en) | Bidirectional transmission system based on optical fiber coaxial mixing network | |
| CN103067686A (en) | Upload amplified coaxial Ethernet access terminal device | |
| CN207010726U (en) | A kind of shunting device that non-symmetrical service is realized using UDP tunneling techniques | |
| KR20130080628A (en) | Headend device for cable network and method therefor | |
| CN104104991B (en) | Digitlization transmission, reception, transmission method and system of the integrated service in HFC | |
| CN110392272A (en) | Home gateway realizes live telecast, the method in broadband and program request simultaneous transmission | |
| CN101917650B (en) | User preposition equipment for heterogeneous network fusion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20200307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |