CN106507169B - Wired and wireless fusion broadband system and method for broadcast television - Google Patents
Wired and wireless fusion broadband system and method for broadcast television Download PDFInfo
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- CN106507169B CN106507169B CN201610883277.2A CN201610883277A CN106507169B CN 106507169 B CN106507169 B CN 106507169B CN 201610883277 A CN201610883277 A CN 201610883277A CN 106507169 B CN106507169 B CN 106507169B
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000004927 fusion Effects 0.000 title abstract description 18
- 230000003993 interaction Effects 0.000 claims abstract description 21
- 230000002452 interceptive effect Effects 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 18
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 230000010354 integration Effects 0.000 abstract description 6
- 230000006854 communication Effects 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000007175 bidirectional communication Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 5
- 230000011664 signaling Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a broadcast television wired and wireless fusion broadband system and a method, wherein the fusion broadband system is a bidirectional communication system for realizing uplink wireless and downlink wired based on a broadcast television wired and wireless fusion network technology. The broadcast television wired and wireless integration network (hereinafter referred to as an integration network) is a broadcast television data network which organically combines a wired television network and a broadcast television wireless bidirectional network to form a broadcasting and television characteristic day-to-ground integration. And a convergence network Gateway (GW) is additionally arranged between the convergence network core network and the interaction small tower, the identification and distinction of uplink and downlink data are realized by utilizing the convergence network Gateway (GW), the uplink data of the broadcast television wireless two-way network are received, the downlink data are forwarded to a Cable Modem Terminal System (CMTS), the uplink data and the downlink data are distinguished, the transmission by different communication networks is realized, and the broadband access mode and the broadband service capability which are superior to the traditional broadband access mode are provided.
Description
Technical Field
The invention relates to a broadcast television wired and wireless fusion broadband system and method, in particular to a broadband system and method based on a CMTS technology and a broadcast television wireless two-way network technology.
Background
All-country cable television operators have been developed from the 90 s so far to construct a broadcast television HFC network which almost covers each town, and the cable television HFC network has the characteristics of good transmission quality, large capacity, high efficiency and stability. However, the broadcast television cable network in most areas can only meet the requirement of unidirectional transmission of television signals, and cannot realize bidirectional services such as on-demand and internet surfing. If the bidirectional communication function of the cable television network in these areas is to be realized, the cable television network needs to be transformed in a bidirectional way, and the traditional bidirectional transformation mode needs to be transformed in a comprehensive and push-down way for the existing cable television network, including network lines, network node equipment and the like, so that the transformation engineering needs to put in a large amount of manpower and material resources, consumes long time, and may cause local and even whole signal interruption of the cable television network to affect the quality of broadcast television service. In addition, although the bidirectional service can be opened based on the broadcast television wireless bidirectional network, the downlink data transmission rate is limited due to the limitation of the wireless channel bandwidth and the influence of multipath fading, and the large-bandwidth application requirement of the home client cannot be met. Therefore, the invention combines the advantages of the cable television network and the broadcast television wireless bidirectional network to carry out bidirectional upgrading transformation, fully utilizes the original cable television network to carry out downlink data transmission, and combines the broadcast television wireless bidirectional network to realize uplink signaling transmission (the uplink signaling has lower bandwidth requirement), thereby having the advantages of large bandwidth capacity, high stability, wide coverage of the broadcast television wireless bidirectional network and low cost of the cable television network and realizing a more rapid deployment, high efficiency and stability of the communication network.
Disclosure of Invention
The invention provides a broadcast television wired and wireless fusion broadband system and a method, which utilize the existing wired television network to complete downlink data transmission, and the broadcast television wireless bidirectional network completes uplink data transmission, thereby realizing the fusion of uplink wireless and downlink wired and providing a broadband access mode and broadband service capability which are superior to the traditional broadband access mode.
The invention relates to a broadcast television cable wireless fusion broadband system, which comprises:
a user terminal for transmitting internet request data to a Cable Modem (CM) and receiving data issued by the Cable Modem (CM);
a Cable Modem (CM) for receiving user Internet surfing request data, recognizing the user Internet surfing request data as uplink data, transmitting a data signal to a wireless network access node (NAP-W), receiving downlink data transmitted by a Cable Modem Termination System (CMTS), and transmitting the data to a user terminal requesting Internet surfing;
a wireless network access node (NAP-W) for receiving uplink data sent by the Cable Modem (CM), the data being sent out by an antenna of the wireless network access node (NAP-W) and transmitted to the interactive small tower through the broadcast television wireless two-way network;
the interactive small tower receives the uplink data transmitted by the broadcast television wireless two-way network and transmits the uplink data to a converged network Gateway (GW);
a Cable Modem Termination System (CMTS) for receiving the downlink data transmitted by the converged network Gateway (GW), broadcasting the group to a corresponding quadrature amplitude modulation channel according to a static multicast rule configured on the Cable Modem Termination System (CMTS) and modulating out the group, and transmitting the downlink data to a designated Cable Modem (CM) according to a command destination address;
a converged network Gateway (GW) for identifying and distinguishing uplink and downlink data, receiving the uplink data transmitted by the interactive small tower, forwarding the uplink data to a converged network core network, receiving the data downloaded by the converged network core network, and transmitting the data to a Cable Modem Terminal System (CMTS);
and the converged network core network is used for receiving the uplink data transmitted by the converged network Gateway (GW), transmitting the data to the Internet, receiving the data returned by the Internet and transmitting the data to the converged network Gateway (GW).
The invention relates to a cable wireless convergence broadband system of a broadcast television, which is characterized in that a convergence network Gateway (GW) is additionally arranged in a convergence network core network and an interaction small tower, the identification and the distinction of uplink and downlink data are realized by utilizing the convergence network Gateway (GW), the uplink data of a wireless bidirectional network of the broadcast television are received, and the downlink data are forwarded to a Cable Modem Terminal System (CMTS); and utilizing a Cable Modem (CM) to distinguish between the upstream user request data and the downstream data, receive the downstream data transmitted by the CMTS device, and forward the user request data to a wireless network access node (NAP-W); the fusion of the wired network and the wireless network is completed through a Cable Modem (CM) and a fusion network Gateway (GW), uplink data and downlink data are distinguished, and different network transmission is utilized, so that the fusion of the wired network and the wireless network is realized. For the existing broadcast television wired network, the system has the advantage of rapid bidirectional upgrading and reconstruction, the original broadcast television wired network is adopted as a downlink data transmission path, excessive adjustment is not needed, and CMTS equipment in the whole wired network only needs to be responsible for the transmission of downlink data, so that bidirectional reconstruction cost is saved; and a convergence network Gateway (GW) is additionally arranged at the wireless two-way network part of the broadcast television, and the convergence network gateway increases the expansibility of an S1 interface between the interaction small towers and the convergence network core network, so that the system supports the access of a large number of interaction small towers, and can be used as a centralized manager of the interface between the interaction small towers and the core network to uniformly receive and manage the data sent by the interaction small towers and forward the data to the convergence network core network. The core network of the fusion network is free from the impact caused by a large amount of signaling generated by the establishment and release of SCTP connection caused by frequent switching of the interaction small tower, and the system is efficient and stable in communication while realizing the wired and wireless fusion.
The invention discloses a broadband method for cable wireless fusion of a broadcast television, which comprises the following steps:
s1, a user terminal sends internet surfing request data to a Cable Modem (CM);
s2, a Cable Modem (CM) identifies the user request data as uplink data and sends the uplink data to a wireless network access node (NAP-W);
s3, the wireless network access node (NAP-W) receives uplink data sent by the Cable Modem (CM), converts the data into corresponding radio frequency signals, transmits the corresponding radio frequency signals through an antenna, and transmits the corresponding radio frequency signals to the interaction small tower through the broadcast television wireless two-way network;
s4, the interaction small tower receives uplink data transmitted by the broadcast television wireless two-way network and transmits the uplink data to a converged Gateway (GW);
s5, a convergence network Gateway (GW) receives uplink data transmitted by the interaction small tower and forwards the uplink data to a convergence network core network;
s6, the converged network core network receives uplink data transmitted by a converged network Gateway (GW), and sends the data to the Internet, and the Internet returns corresponding data according to the request data to the converged network Gateway (GW) through the converged network core network;
s7, a convergence network Gateway (GW) receives data transmitted by a convergence network core network, identifies and transmits the data to a Cable Modem Terminal System (CMTS) through a wired network;
s8, the Cable Modem Terminal System (CMTS) receives the data issued by the converged network Gateway (GW), broadcasts the group to a corresponding quadrature amplitude modulation channel according to a static multicast rule configured on the Cable Modem Terminal System (CMTS) and modulates the group out, and sends downlink data to the Cable Modem (CM) according to an instruction destination address;
s9, the Cable Modem (CM) receives downlink data transmitted by a Cable Modem Terminal System (CMTS), receives data of a specified multicast group from a specified downlink frequency point according to a preset rule, and transmits the data to a corresponding user terminal;
s10, the user terminal receives data issued by the Cable Modem (CM) and finishes the request action.
The invention relates to a broadcast television wire wireless convergence broadband terminal method, wherein a user terminal sends out internet access request data to be forwarded to a wireless network access node through a Cable Modem (CM), the data is processed by the wireless network access node (NAP-W) and sent out through an antenna, the data is transmitted to an interactive small tower through a broadcast television wireless bidirectional network, and finally received by a convergence network Gateway (GW), the convergence network Gateway (GW) is provided with uplink data to be sent to a convergence network core network, the core network sends out request data to the Internet, the Internet returns corresponding data to be transmitted to the convergence network Gateway (GW) through the convergence network core network, the convergence network Gateway (GW) recognizes the downlink data to be sent to the corresponding Cable Modem (CM) through a cable network based on CMTS, and the Cable Modem (CM) recognizes the downlink data to be sent out to the user terminal. The system organically combines the advantages of a wired network and a wireless network in the best way, fully utilizes the old original unidirectional HFC network to provide large-bandwidth and stable downlink data, simultaneously utilizes the advantages of wide coverage, short construction period and the like of the wireless bidirectional network of the broadcast television, can quickly upgrade and reform the HFC network with low cost without 'pushing over and falling over', can be used for reforming the HFC network with higher speed and lower cost, and provides a broadband access mode and broadband service capability which are superior to those of the traditional broadband access mode.
The invention discloses a broadcast television wired and wireless fusion broadband system and a method, wherein the fusion broadband system is a bidirectional communication system for realizing uplink wireless and downlink wired based on a broadcast television wired and wireless fusion network technology. The broadcast television wired and wireless integration network (hereinafter referred to as an integration network) is a broadcast television data network which organically combines a wired television network and a broadcast television wireless bidirectional network to form a broadcasting and television characteristic day-to-ground integration. A convergence network Gateway (GW) is additionally arranged between a convergence network core network and an interaction small tower, the identification and differentiation of uplink and downlink data are realized by utilizing the convergence network Gateway (GW), the uplink data of a broadcast television wireless two-way network are received, and the downlink data are forwarded to a Cable Modem Terminal System (CMTS); and using a Cable Modem (CM) to distinguish between the uplink user request data and the downlink data, receiving the downlink data transmitted by the CMTS equipment, and forwarding the user request data to the broadcast television wireless bidirectional network; the connection between the wired network and the wireless network is completed through the Cable Modem (CM) and the converged network Gateway (GW), the uplink data and the downlink data are distinguished, the transmission with different communication networks is realized, and the broadband access mode and the broadband service capability are better than the traditional broadband access mode and broadband service capability.
Drawings
Fig. 1 is a system block diagram of a broadcast television cable wireless convergence broadband system.
Fig. 2 is a flowchart of a broadcast television cable-wireless convergence broadband method.
Detailed Description
As shown in fig. 1, a broadcast television cable-wireless convergence broadband system includes: a user terminal for transmitting internet request data to a Cable Modem (CM) and receiving data issued by the Cable Modem (CM); a Cable Modem (CM) for receiving user Internet surfing request data, recognizing the user Internet surfing request data as uplink data, transmitting a data signal to a wireless network access node (NAP-W), receiving downlink data transmitted by a Cable Modem Termination System (CMTS), and transmitting the data to a user terminal requesting Internet surfing; a wireless network access node (NAP-W) for receiving uplink data sent by the Cable Modem (CM), the data being sent out by an antenna of the wireless network access node (NAP-W) and transmitted to the interactive small tower through the broadcast television wireless two-way network; the interactive small tower receives the uplink data transmitted by the broadcast television wireless two-way network and transmits the uplink data to a converged network Gateway (GW); a Cable Modem Termination System (CMTS) for receiving the downlink data transmitted by the converged network Gateway (GW), broadcasting the group to a corresponding quadrature amplitude modulation channel according to a static multicast rule configured on the Cable Modem Termination System (CMTS) and modulating out the group, and transmitting the downlink data to a designated Cable Modem (CM) according to a command destination address; a converged network Gateway (GW) for identifying and distinguishing uplink and downlink data, receiving the uplink data transmitted by the interactive small tower, forwarding the uplink data to a converged network core network, receiving the data downloaded by the converged network core network, and transmitting the data to a Cable Modem Terminal System (CMTS); and the converged network core network is used for receiving the uplink data transmitted by the converged network Gateway (GW), transmitting the data to the Internet, receiving the data returned by the Internet and transmitting the data to the converged network Gateway (GW).
The Cable Modem (CM) comprises a built-in BPI certificate, so that illegal modification of the MAC address of the Cable Modem (CM) to acquire IP to obtain internet service is prevented. The illegal CM obtains legal IP address by tampering into the MAC address of the online CM, thereby realizing that the CM obtains the online authority of the wired network, and the BPI certificate has the capability of identifying that the MAC address of the CM has no tampering and variation, thereby preventing the illegal CM from obtaining the online service.
According to the broadcast television wired and wireless convergence broadband system, the convergence network Gateway (GW) increases expansibility of an S1 interface between the interaction small towers and the convergence network core network, supports access of a large number of interaction small towers, can serve as a centralized manager of the interfaces between the interaction small towers and the core network, and uniformly receives and manages data sent by the interaction small towers to be forwarded to the convergence network core network.
As shown in fig. 2, a method for fusing broadband by wire and wireless of a broadcast television comprises the following steps: s1, a user terminal sends internet surfing request data to a Cable Modem (CM); s2, a Cable Modem (CM) identifies the user request data as uplink data and sends the uplink data to a wireless network access node (NAP-W); s3, the wireless network access node (NAP-W) receives uplink data sent by the Cable Modem (CM), converts the data into corresponding radio frequency signals, transmits the corresponding radio frequency signals through an antenna, and transmits the corresponding radio frequency signals to the interaction small tower through the broadcast television wireless two-way network; s4, the interaction small tower receives uplink data transmitted by the broadcast television wireless two-way network and transmits the uplink data to a converged Gateway (GW); s5, a convergence network Gateway (GW) receives uplink data transmitted by the interaction small tower and forwards the uplink data to a convergence network core network; s6, the converged network core network receives uplink data transmitted by a converged network Gateway (GW), and sends the data to the Internet, and the Internet returns corresponding data according to the request data to the converged network Gateway (GW) through the converged network core network; s7, a convergence network Gateway (GW) receives data transmitted by a convergence network core network, identifies and transmits the data to a Cable Modem Terminal System (CMTS) through a wired network; s8, the Cable Modem Terminal System (CMTS) receives the data issued by the converged network Gateway (GW), broadcasts the group to a corresponding quadrature amplitude modulation channel according to a static multicast rule configured on the Cable Modem Terminal System (CMTS) and modulates the group out, and sends downlink data to the Cable Modem (CM) according to an instruction destination address; s9, the Cable Modem (CM) receives downlink data transmitted by a Cable Modem Terminal System (CMTS), receives data of a specified multicast group from a specified downlink frequency point according to a preset rule, and transmits the data to a corresponding user terminal; s10, the user terminal receives data issued by the Cable Modem (CM) and finishes the request action.
Claims (3)
1. A broadcast television cable wireless convergence broadband system, comprising:
a user terminal for transmitting internet request data to a Cable Modem (CM) and receiving data issued by the Cable Modem (CM);
a Cable Modem (CM) for receiving user Internet surfing request data, recognizing the user Internet surfing request data as uplink data, transmitting a data signal to a wireless network access node (NAP-W), receiving downlink data transmitted by a Cable Modem Termination System (CMTS), and transmitting the data to a user terminal requesting Internet surfing;
a wireless network access node (NAP-W) for receiving uplink data sent by the Cable Modem (CM), the data being sent out by an antenna of the wireless network access node (NAP-W) and transmitted to the interactive small tower through the broadcast television wireless two-way network;
the interactive small tower receives the uplink data transmitted by the broadcast television wireless two-way network and transmits the uplink data to a converged network Gateway (GW);
a Cable Modem Termination System (CMTS) for receiving the downlink data transmitted by the converged network Gateway (GW), broadcasting the group to a corresponding quadrature amplitude modulation channel according to a static multicast rule configured on the Cable Modem Termination System (CMTS) and modulating out the group, and transmitting the downlink data to a designated Cable Modem (CM) according to a command destination address;
a converged network Gateway (GW) for identifying and distinguishing uplink and downlink data, receiving the uplink data transmitted by the interactive small tower, forwarding the uplink data to a converged network core network, receiving the data downloaded by the converged network core network, and transmitting the data to a Cable Modem Terminal System (CMTS);
and the converged network core network is used for receiving the uplink data transmitted by the converged network Gateway (GW), transmitting the data to the Internet, receiving the data returned by the Internet and transmitting the data to the converged network Gateway (GW).
2. A broadcast television cable wireless convergence broadband system as claimed in claim 1, wherein the Cable Modem (CM) comprises a built-in BPI certificate to prevent illegal modification of the MAC address of the Cable Modem (CM) to obtain IP for internet access services.
3. The wired and wireless convergence broadband terminal method based on the CMTS is characterized by comprising the following steps of:
s1, a user terminal sends internet surfing request data to a Cable Modem (CM);
s2, a Cable Modem (CM) identifies the user request data as uplink data and sends the uplink data to a wireless network access node (NAP-W);
s3, the wireless network access node (NAP-W) receives uplink data sent by the Cable Modem (CM), converts the data into corresponding radio frequency signals, transmits the corresponding radio frequency signals through an antenna, and transmits the corresponding radio frequency signals to the interaction small tower through the broadcast television wireless two-way network;
s4, the interaction small tower receives uplink data transmitted by the broadcast television wireless two-way network and transmits the uplink data to a converged Gateway (GW);
s5, a convergence network Gateway (GW) receives uplink data transmitted by the interaction small tower and forwards the uplink data to a convergence network core network;
s6, the converged network core network receives uplink data transmitted by a converged network Gateway (GW), and sends the data to the Internet, and the Internet returns corresponding data according to the request data to the converged network Gateway (GW) through the converged network core network;
s7, a convergence network Gateway (GW) receives data transmitted by a convergence network core network, identifies and transmits the data to a Cable Modem Terminal System (CMTS) through a wired network;
s8, the Cable Modem Terminal System (CMTS) receives the data issued by the converged network Gateway (GW), broadcasts the group to a corresponding quadrature amplitude modulation channel according to a static multicast rule configured on the Cable Modem Terminal System (CMTS) and modulates the group out, and sends downlink data to the Cable Modem (CM) according to an instruction destination address;
s9, the Cable Modem (CM) receives downlink data transmitted by a Cable Modem Terminal System (CMTS), receives data of a specified multicast group from a specified downlink frequency point according to a preset rule, and transmits the data to a corresponding user terminal;
s10, the user terminal receives data issued by the Cable Modem (CM) and finishes the request action.
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| CN110336971B (en) * | 2019-06-25 | 2021-08-24 | 王兴文 | Wired broadband acceleration capacity expansion system |
| CN111343198B (en) * | 2020-04-03 | 2024-08-09 | 广西广播电视信息网络股份有限公司 | System and method for realizing broadcast video IP based on multicast VLAN technology |
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| WO2015042959A1 (en) * | 2013-09-30 | 2015-04-02 | 华为技术有限公司 | Data transmission method, device and system |
| CN105848007A (en) * | 2016-06-17 | 2016-08-10 | 国网福建省电力有限公司 | Wireless and coaxial cable bidirectional data transmission system |
| CN206389488U (en) * | 2016-10-10 | 2017-08-08 | 广东省广播电视网络股份有限公司 | A kind of radio and television wire and wireless fusing broadband system |
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