CN104104991B - Digitlization transmission, reception, transmission method and system of the integrated service in HFC - Google Patents
Digitlization transmission, reception, transmission method and system of the integrated service in HFC Download PDFInfo
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Abstract
A kind of digitlization of the integrated service of present invention offer in HFC sends, received, transmission method and system, the Transmission system include：Live video program source, there is provided live video data stream；Video server and digital content management device, are connected with live video program source, change live video data circulation into IP packets；OLT units, the IP packets comprising live video program source are sent on IP network；ONU units, receive the IP packets that OLT units are sent；IPQAM equipment, IPQAM modulation is carried out to the IP packets comprising live video data stream and obtains digital television radio-frequency signal；EoC home gateways, received by coaxial line and forward digital television radio-frequency signal；Coaxial line set top box, digital television radio-frequency signal is converted into television display signals.The integrated service that the present invention is realized including direct broadcast television signals and analog program source is transmitted in light copper hybrid network total digitalization IP, is eliminated all analog transmission facilities, has been simplified the complexity of network, ensure that the QoS of transmission.
Description
Technical field
The invention belongs to IP integrated service technical fields, and in particular to a kind of digitlization of integrated service in HFC send,
Reception, transmission method and system.
Background technology
With flourishing for IP technologies, IP flexibility has obtained sufficient display, the increment industry developed on IP network
Business is continuously increased.Using IP network unify carry voice traffic, data service, video traffic will to future telecom operators bring
Revolutionary change, IP integrated services networks（IP integrated service network）Blank it is gradually clear.NGN
（Next Generation Network, next generation network）It is IP-based brand-new integrated network, in NGN Unified Network platforms
On, can the business such as converged communication, information, ecommerce, amusement, realize interactive dream.Using soft switch and packet-switch technology as
Once proposition, major telecom operators begin to set about the construction for carrying out next generation network the NGN concepts of core.Emerge in an endless stream
Novel voice, data, image co-registration business will not only change the operation mode of operator, will more change the mode of people's life.
At present, Chinese Liang great operators telecommunications and broadcasting and TV have the IP integrated services networks of oneself.The IP synthesis industry of telecommunications
Transmission network be engaged in as shown in figure 1, the network includes computer room end 110 and client 120, the IPTV signals at computer room end 110（Including
Internet data and the vision signal of program request）Client 120 is transferred to by Ethernet 130.Wherein, computer room end 110 is provided with
Internet data sources 111, video server and digital content management device 112 and OLT113；Internet data sources 111 export
Internet data and the vision signal that exports of video server and digital content management device 112 with the shape of IPTV packets
Formula is sent on Ethernet 130 through OLT113；Client 120 includes the ONU121 being located in corridor and is arranged in user family
Home gateway 122 and IPTV set top box 123；Wherein, ONU121 is connected with Ethernet 130, and receiving house end 110 passes through ether
The IPTV packets that net 130 transmits；Home gateway 122 is connected with ONU121, and IPTV set top box 123 is connected with home gateway 122,
IPTV packets are converted into TV signal and played back by IPTV set top box 123.Due to from ONU121 to home gateway 122 again to
This section of network of IPTV set top box 123 is home network, IP network（That is netting twine）QoS（Quality of Service, Service Quality
Amount）Such as it is delayed, shakes and do not ensure, simultaneous transmission channel is also easily disturbed by various electric signals, especially high to video flowing
The high-quality transmission of clear video flowing is highly difficult.In addition, the video server and digital content management device 112 are that program request regards
Frequency server and digital content management device, computer room end 110 does not include live video program source, so telecommunications can not realize live electricity
Depending on the function of program, this, which is primarily due to live video stream, needs to take at least more than 1G transmission bandwidth, and client 120
Register one's residence bandwidth（That is the bandwidth of netting twine）It is that can not receive up to more than 1G live video stream typically in 8-10M or so.
The IP Integrated Services Transmissions network of broadcasting and TV is as shown in Fig. 2 the network includes computer room end 210 and client 220, computer room
The Internet data at end 210 are transferred to client 220 by first network 230, the vision signal of the program request at computer room end 210 and
Live vision signal is transferred to client 220 by the second network 240.Wherein, computer room end 210 is provided with Internet data sources
211st, video on demand service device and digital content management device 212, live video program source 213, OLT214, the first IPQAM215,
2nd IPQAM216 and light modulation amplifier 217；The Internet data that Internet data sources 211 export are with the shape of packet
Formula is sent on first network 230 through OLT214；The order video that video on demand service device and digital content management device 212 export
Signal is modulated on the second network 240 through the first IPQAM215 and light modulation amplifier 217 and transmitted；Live video program source 213
The live video of output flows through the 2nd IPQAM216 and light modulation amplifier 217 is modulated on the second network 240 and transmitted.Client
220 include the ONU/EoC221 being located in corridor and optical receiver 222 and the EoC home gateways 223 being arranged in user family
With coaxial line set top box 224；Wherein, ONU/EoC221 is connected with first network 230, and receiving house end 210 passes through first network
The packet of 230 transmission；Optical receiver 222 is connected with the second network 240, and receiving house end 210 is transmitted by the second network 240
Order video signal and live video signal；EoC home gateways 223 pass through coaxial line and the ONU/EoC221 and light-receiving
Device 222 is respectively connected with, and the packet, order video signal and live video signal are transferred to EoC families by coaxial line
Gateway 223；EoC home gateways 223 are handled packet；The coaxial line set top box 224 being connected with EoC home gateways 223
The order video signal and live video signal are converted into TV signal to play back.IPQAM（That is the first IPQAM215 and
2nd IPQAM216）It is the special frequency range of high frequency of coaxial line, is not easy to be disturbed；IPQAM delay is fixed, phase simultaneously
For IP network, its QoS is secure, is had great advantage to transmission high definition video steaming tool.In addition, it utilizes coaxial line
Also solve the networking issues of subscriber household network so that home network signals are stable, are not easy to be disturbed.But due to the network
IPQAM electric signals computer room generate, it is necessary to be modulated to some optical band（Such as 1550nm）Optical transport could be used to corridor optical
Node, the transmission means of corridor optical node this section from the IPQAM at computer room end to client is analogue transmission, adds network
Complexity, have impact on controllability, flexibility and the reliability of network, and be the transmission range of increase analog optical signal,
Sometimes casacade multi-amplifier is also needed to, both wastes the energy, increases the maintenance cost of network again.
The totally digitilized IP transmission of IP integrated services is realized, direct broadcast television signals must just be carried out with IP digitlizations and passed
It is defeated, and direct broadcast television signals are transmitted in an analog manner by simulating optical transmit-receive device in the prior art.With 200 high definitions
Exemplified by program, each high-definition program 8Mbps on demand flow rate calculation, the total flows of direct broadcast television signals is up to 1.6Gbps, such as
So big flow is sent to user terminal or corridor optical node by fruit（User terminal is sent to by IPQAM again）Receive, it is existing
Technology can not accomplish.
The content of the invention
In view of the above the shortcomings that prior art, it is an object of the invention to provide a kind of integrated service in HFC
Digitlization transmission, reception, transmission method and system, all digitlization biographies can not be realized for solving integrated service in the prior art
The problem of defeated.
In order to achieve the above objects and other related objects, the present invention provides a kind of digitlization hair of integrated service in HFC
Send, receive, transmission method and system.
Digitlization sending method of the integrated service in HFC includes：Change live video data circulation into IP data
Bag is sent on IP network.
Preferably, digitlization sending method of the integrated service in HFC also includes：
Internet IP packets are sent on IP network；
Order video stream compression is changed into IP packets to be sent on IP network；
Analog program source is converted into IP packets to be sent on IP network.
Digitlization method of reseptance of the integrated service in HFC includes：
IP packets are received from IP network；
IPQAM is carried out to the IP packets comprising live video data stream and the IP packets comprising order video data flow
Modulation obtains digital television radio-frequency signal；EoC processing is carried out to Internet IP packets and obtains EoC radiofrequency signals；To comprising
The IP packets in analog program source carry out digital-to-analogue conversion and obtain analog signal；
The digital television radio-frequency signal, the EoC radiofrequency signals and the analog signal transmission are given using coaxial line
EoC home gateways, so as to the EoC home gateways EoC radiofrequency signals are handled and with the EoC home gateways
The digital television radio-frequency signal and the analog signal are converted into television display signals by connected coaxial line set top box.
Digitalized transmission method of the integrated service in HFC includes：
Live video data circulation is changed into IP packets to be sent on IP network；
IP packets are received from IP network；
IPQAM modulation is carried out to the IP packets comprising live video data stream and obtains digital television radio-frequency signal；
The digital television radio-frequency signal is transferred to coaxial line set top box using coaxial line and is converted into television display signals.
Preferably, digitalized transmission method of the integrated service in HFC also includes：
Order video data flow and analog program source are converted into IP packets to be sent on IP network；
Internet IP packets are sent on IP network；
IP packets are received from IP network；
IPQAM is carried out to the IP packets comprising live video data stream and the IP packets comprising order video data flow
Modulation obtains digital television radio-frequency signal；EoC processing is carried out to the Internet IP packets and obtains EoC radiofrequency signals；It is right
IP packets comprising analog program source carry out digital-to-analogue conversion and obtain analog signal；
The digital television radio-frequency signal, the EoC radiofrequency signals and the analog signal transmission are given using coaxial line
EoC home gateways, so as to the EoC home gateways EoC radiofrequency signals are handled and with the EoC home gateways
The digital television radio-frequency signal and the analog signal are converted into television display signals by connected coaxial line set top box.
Preferably, digitlization of the integrated service in HFC sends system and also included：Internet router, modulus
Conversion and IP encapsulation units；The Internet router is connected with the OLT units, there is provided Internet IP packets with
Toilet states OLT units and the Internet IP packets is sent on IP network；The video server and digital content management
Device, which provides, includes the IP packets of order video data flow, so that the OLT units are by the IP numbers comprising order video data flow
It is sent to according to bag on IP network；The analog-to-digital conversion and IP encapsulation units are connected with the OLT units, and analog program source is carried out into mould
Number is changed and is packaged into IP packets, so that the IP packets comprising analog program source are sent on IP network by the OLT units；
The OLT units are 10G OLT units.
Digitlization reception system of the integrated service in HFC includes：ONU units, EoC head-end units, IPQAM are set
It is standby, D/A conversion unit, EoC home gateways, coaxial line set top box；The ONU units receive the IP data that OLT units are sent
Bag；The EoC head-end units are connected with the ONU units, and EoC processing is carried out to Internet IP packets and obtains EoC radio frequencies
Signal；The IPQAM equipment is connected with the ONU units, to the IP packets comprising live video data stream and includes program request
The IP packets of video data stream carry out IPQAM modulation and obtain digital television radio-frequency signal；The D/A conversion unit with it is described
ONU units are connected, and the IP packets comprising analog program source are carried out into digital-to-analogue conversion obtains analog signal；The EoC home networks
Pass is respectively connected with by coaxial line and the IPQAM equipment, the EoC head-end units and the D/A conversion unit, is received simultaneously
The EoC radiofrequency signals are handled, forward the digital television radio-frequency signal and the analog signal；The coaxial line set top box with
The EoC home gateways are connected, and the digital television radio-frequency signal and the analog signal are converted into television display signals.
Digitization transmission system of the integrated service in HFC includes：Live video program source, video server and number
Word content manager, OLT units, ONU units, IPQAM equipment, EoC home gateways, coaxial line set top box；The live video
Program source provides live video data stream；Video server and the digital content management device and the live video program source phase
Even, live video data circulation is changed into IP packets；The OLT units and the video server and digital content pipe
Reason device is connected, and the IP packets comprising live video program source are sent on IP network；It is mono- that the ONU units receive OLT
The IP packets that member is sent；The IPQAM equipment is connected with the ONU units, to the IP data comprising live video data stream
Bag carries out IPQAM modulation and obtains digital television radio-frequency signal；The EoC home gateways pass through coaxial line and the IPQAM equipment
It is connected, receives and handle the EoC radiofrequency signals, forward the digital television radio-frequency signal；The coaxial line set top box and institute
State EoC home gateways to be connected, the digital television radio-frequency signal is converted into television display signals.
Preferably, digitization transmission system of the integrated service in HFC also includes：Internet router, modulus
Conversion and IP encapsulation units, EoC head-end units, D/A conversion unit；The Internet router and the OLT units phase
Even, there is provided the Internet IP packets are sent on IP network by Internet IP packets so as to the OLT units；Institute
State video server and digital content management device provides the IP packets for including order video data flow, so as to the OLT units
IP packets comprising order video data flow are sent on IP network；The analog-to-digital conversion and IP encapsulation units and the OLT
Unit is connected, and analog program source is carried out into analog-to-digital conversion and is packaged into IP packets, so that the OLT units will include simulation section
The IP packets in mesh source are sent on IP network；The EoC head-end units are connected with the ONU units, to the Internet IP
Packet carries out EoC processing and obtains EoC radiofrequency signals；The IPQAM equipment is to the IP packets comprising order video data flow
Carry out IPQAM modulation and obtain digital television radio-frequency signal；The D/A conversion unit is connected with the ONU units, will include mould
The IP packets for intending program source carry out digital-to-analogue conversion acquisition analog signal；The EoC home gateways pass through coaxial line and the EoC
Head-end unit and the D/A conversion unit are respectively connected with, and are received and are handled the EoC radiofrequency signals and forward the numeral
TV RF signals and the analog signal；The coaxial line set top box believes the digital television radio-frequency signal and the simulation
Number it is converted into television display signals.
As described above, digitlization transmission, reception, transmission method and system of the integrated service of the present invention in HFC,
Have the advantages that：
The present invention realizes the totally digitilized IP transmission of the IP integrated services including direct broadcast television signals, i.e. IP synthesis
Business from computer room get home front yard transmitting procedure all digitize, both ensure that the QoS of IP Integrated Services Transmissions, make again IP integrate industry
The whole transport network architecture of business is simple, flexibly.
Brief description of the drawings
Fig. 1 is the structural representation of the IP Integrated Services Transmission networks of existing telecommunications.
Fig. 2 is the structural representation of the IP Integrated Services Transmission networks of existing broadcasting and TV.
Fig. 3 is the schematic flow sheet of digitlization sending method of the integrated service of the present invention in HFC.
Fig. 4 is the schematic flow sheet of digitlization method of reseptance of the integrated service of the present invention in HFC.
Fig. 5 is the schematic flow sheet of digitalized transmission method of the integrated service of the present invention in HFC.
Fig. 6 is the structural representation of digitlization transmission system of the integrated service of the present invention in HFC.
Fig. 7 is the structural representation of digitlization reception system of the integrated service of the present invention in HFC.
Fig. 8 is the structural representation of digitization transmission system of the integrated service of the present invention in HFC.
Component label instructions
110th, 210 computer room end
111st, 211 Internet data sources
112nd, video server
113、214 OLT
212 video on demand service devices
213 live video program sources
215 the oneth IPQAM
216 the oneth IPQAM
217 light modulation amplifiers
120th, 220 client
121 ONU
122 home gateways
123 IPTV set top boxes
130 Ethernets
230 first networks
240 second networks
221 ONU/EoC
222 optical receivers
223 EoC home gateways
224 DVB-C set top boxes
601st, 801 live video program source
602nd, 802 Internet router
603rd, 803 video servers and digital content management device
604th, 804 OLT units
605th, 805 analog-to-digital conversions and IP encapsulation units
701st, 806 ONU units
705th, 807 EoC head-end units
702nd, 808 IPQAM equipment
706th, 809 D/A conversion unit
703rd, 810 EoC home gateways
704th, 811 coaxial line set top box
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
Refer to accompanying drawing.It should be noted that only explanation is of the invention in a schematic way for the diagram provided in the present embodiment
Basic conception, then in schema only display with relevant component in the present invention rather than according to component count during actual implement, shape
Shape and size are drawn, and kenel, quantity and the ratio of each component can be a kind of random change during its actual implementation, and its component cloth
Office's kenel may also be increasingly complex.
With reference to embodiment and accompanying drawing, the present invention is described in detail.
Embodiment
The present embodiment provides a kind of integrated service in HFC（Hybrid Fiber-Coaxial, hybrid fiber/ coax, HFC
Net）In digitlization sending method, as shown in figure 3, digitlization sending method of the integrated service in HFC includes：
Live video data stream, order video data flow and analog program source are converted into IP packets and are sent to IP network
On；
Internet IP packets are sent on IP network.
Further, the preferable Ethernet of the IP network.
The present embodiment also provides a kind of digitlization method of reseptance of integrated service in HFC, as shown in figure 4, the synthesis
Digitlization method of reseptance of the business in HFC includes：
IP packets are received from IP network；
IPQAM is carried out to the IP packets comprising live video data stream and the IP packets comprising order video data flow
Modulation obtains digital television radio-frequency signal；EoC processing is carried out to Internet IP packets and obtains EoC radiofrequency signals；To comprising
The IP packets in analog program source carry out digital-to-analogue conversion and obtain analog signal；
The digital television radio-frequency signal, the EoC radiofrequency signals and the analog signal transmission are given using coaxial line
EoC home gateways, so as to the EoC home gateways EoC radiofrequency signals are handled and with the EoC home gateways
The digital television radio-frequency signal and the analog signal are converted into television display signals by connected coaxial line set top box.
The present embodiment also provides a kind of digitalized transmission method of integrated service in HFC, as shown in figure 5, the synthesis
Digitalized transmission method of the business in HFC includes：
Live video data stream, order video data flow and analog program source are converted into IP packets and are sent to IP network
On；
Internet IP packets are sent on IP network；
IP packets are received from IP network；
IPQAM is carried out to the IP packets comprising live video data stream and the IP packets comprising order video data flow
Modulation obtains digital television radio-frequency signal；EoC processing is carried out to the Internet IP packets and obtains EoC radiofrequency signals；It is right
IP packets comprising analog program source carry out digital-to-analogue conversion and obtain analog signal；
The digital television radio-frequency signal, the EoC radiofrequency signals and the analog signal transmission are given using coaxial line
EoC home gateways, so as to the EoC home gateways EoC radiofrequency signals are handled and with the EoC home gateways
The digital television radio-frequency signal and the analog signal are converted into television display signals by connected coaxial line set top box.
The present embodiment also provides a kind of digitlization of integrated service in HFC and sends system, and the transmission system can be realized
Digitlization sending method of the integrated service of the present invention in HFC, but number of the integrated service of the present invention in HFC
Word sending method realizes that digitlization of the integrated service in HFC that system is not limited to described in the present embodiment sends system.Such as
Shown in Fig. 6, digitlization of the integrated service in HFC, which sends system, to be included：Live video program source 601, Internet roads
By device 602, video server and digital content management device 603, OLT units 604, analog-to-digital conversion and IP encapsulation units 605；It is described
Live video program source 601 provides live video data stream；Internet router 602 provides Internet IP packets；Depending on
Frequency server and digital content management device 603 are connected with the live video program source, and live video data circulation is changed
Into IP packets, and the IP packets for including order video data flow are provided, i.e. video server and digital content management device carries
For video IP bags；Analog program source is carried out analog-to-digital conversion and is packaged into IP packets by analog-to-digital conversion and IP encapsulation units 605；
OLT units 604 encapsulate with Internet router 602, video server and digital content management device 603 and analog-to-digital conversion and IP
Unit 605 is respectively connected with, by Internet IP packets, the IP packets comprising live video data stream, described
IP packets comprising order video data flow and the IP packets comprising analog program source are sent on IP network.It is described
OLT units 604 are preferably 10G OLT.Digitlization of the integrated service in HFC sends system and is generally arranged in computer room.
The present embodiment also provides a kind of digitlization reception system of integrated service in HFC, and the reception system can be realized
Digitlization method of reseptance of the integrated service of the present invention in HFC, but number of the integrated service of the present invention in HFC
Word method of reseptance realizes that system is not limited to digitlization reception system of the integrated service in HFC described in the present embodiment.Such as
Shown in Fig. 7, digitlization reception system of the integrated service in HFC includes：ONU units 701, IPQAM equipment 702, EoC family
Front yard gateway 703, coaxial line set top box 704, EoC head-end units 705, D/A conversion unit 706.The ONU units 701 receive
The IP packets that OLT units are sent, that is, receive the IP packets from IP network；Wherein described IP packets include Internet
IP packets, the IP packets comprising live video data stream, the IP packets comprising order video data flow and
The IP packets for including analog program source.The ONU units 701 are preferably 10G ONU.EoC head-end units 705 with it is described
ONU units 701 are connected, and EoC processing is carried out to Internet IP packets and obtains EoC radiofrequency signals；EoC head-end units 705 are right
Every other data flow beyond live and order video stream and analog program source（It is i.e. including but not limited to of the present invention
Internet data）It is modulated into EoC radiofrequency signals and is sent on coaxial line；EoC head-end units are received from coaxial line simultaneously
EoC upstream radio-frequency signals, and EoC upstream radio-frequency signals are demodulated to form IP packets, then IP packets are sent to
ONU；I.e. EoC head-end units are responsible for the conversion between the EoC radiofrequency signals on coaxial line and IP packets.IPQAM equipment 702 with
The ONU units 701 are connected, to the IP packets comprising live video data stream that are forwarded through the ONU units 701 and comprising
The IP packets of order video data flow carry out IPQAM modulation and obtain digital television radio-frequency signal, and the DTV is penetrated
Frequency signal is sent on coaxial line；D/A conversion unit 706 is connected with the ONU units 701, will include the IP in analog program source
Packet carries out digital-to-analogue conversion and obtains analog signal, and analog signal is sent on coaxial line；EoC home gateways 703 pass through
Coaxial line is respectively connected with the IPQAM equipment 702, the EoC head-end units 705 and the D/A conversion unit 706, is received
And the EoC radiofrequency signals are handled, forward the digital television radio-frequency signal and the analog signal.EoC home gateways 703
It is simple forwarding digital television radio-frequency signal, and the processing of digital television radio-frequency signal and conversion are all in coaxial line set top box
Completed in 704.EoC home gateways 703 can also be other coaxial line family gateway equipments, such as DOCSIS terminal devices.Together
Axis set top box 704 is connected with the EoC home gateways 703, and the digital television radio-frequency forwarded through the EoC home gateways is believed
Number and analog signal be converted into television display signals.The ONU units 701, EoC head-end units 705, D/A conversion unit 706
It is may be generally disposed at IPQAM equipment 702 in corridor；The EoC home gateways 703 and coaxial line set top box 704 are generally set
In home dwelling.
The present embodiment also provides a kind of digitization transmission system of integrated service in HFC, and the Transmission system can be realized
Digitalized transmission method of the integrated service of the present invention in HFC, but number of the integrated service of the present invention in HFC
Word transmission method realizes that system is not limited to digitization transmission system of the integrated service in HFC described in the present embodiment.Such as
Shown in Fig. 8, digitization transmission system of the integrated service in HFC includes：Live video program source 801, Internet roads
By device 802, video server and digital content management device 803, OLT units 804, analog-to-digital conversion and IP encapsulation units 805, ONU
Unit 806, EoC head-end units 807, IPQAM equipment 808, D/A conversion unit 809, EoC home gateways 810, coaxial line machine top
Box 811.The live video program source 801, Internet router 802, video server and digital content management device 803,
OLT units 804, analog-to-digital conversion and IP encapsulation units 805 are generally arranged in computer room.The ONU units 806, EoC head-end units
807th, IPQAM equipment 808, D/A conversion unit 809 are generally arranged in corridor or building.It is the EoC home gateways 810, same
Axis set top box 811 is generally arranged in home dwelling.
Wherein, live video program source 801 provides live video data stream；Internet router 802 provides
Internet IP packets；Video server and digital content management device 803 are connected with the live video program source 801, will
The live video data circulation changes IP packets into, and provides the IP packets for including order video data flow, i.e., video takes
Business device and digital content management device provide video IP bags；Analog program source is carried out modulus by analog-to-digital conversion and IP encapsulation units 805
Change and be packaged into IP packets；OLT units 804 and Internet router 802, video server and digital content management device
803 and analog-to-digital conversion and IP encapsulation units 805 be respectively connected with, by the Internet IP packets, include live video data
The IP packets of stream, the IP packets comprising order video data flow and the IP packets comprising analog program source are sent to
On IP network.The Internet IP packets, the IP packets comprising live video data stream, include order video data flow
IP packets and IP packets comprising analog program source can be collectively referred to as IP packets.It is mono- that the ONU units 806 receive OLT
The IP packets that member 804 is sent, that is, receive the IP packets from IP network；EoC head-end units 807 and the phase of ONU units 806
Even, EoC processing is carried out to the Internet IP packets and obtains EoC radiofrequency signals；EoC head-end units 807 are to live and point
Broadcast the every other data flow beyond video flowing and analog program source（Include but is not limited to Internet of the present invention
Data）It is modulated into EoC radiofrequency signals and is sent on coaxial line；EoC head-end units receive that the EoC from coaxial line is up penetrates simultaneously
Frequency signal, and EoC upstream radio-frequency signals are demodulated to form IP packets, IP packets are then sent to ONU；That is EoC
Head-end unit is responsible for the conversion between the EoC radiofrequency signals on coaxial line and IP packets.The IPQAM equipment 808 and ONU is mono-
Member 806 is connected, and to the IP packets comprising live video data stream forwarded through the ONU units 806 and includes order video
The IP packets of data flow carry out IPQAM modulation and obtain digital television radio-frequency signal, and the digital television radio-frequency signal is sent out
It is sent on coaxial line；D/A conversion unit 809 is connected with the ONU units 806, and the IP packets comprising analog program source are entered
Row digital-to-analogue conversion obtains analog signal, and analog signal is sent on coaxial line；EoC home gateways 810 by coaxial line with
The IPQAM equipment 808, the EoC head-end units 807 and the D/A conversion unit 809 are respectively connected with, and are received and are handled institute
EoC radiofrequency signals are stated, forward the digital television radio-frequency signal and the analog signal.EoC home gateways 810 are simply simple to be turned
Digital television radio-frequency signal is sent out, and the processing of digital television radio-frequency signal and conversion are completed in coaxial line set top box 811
's.EoC home gateways 810 can also be other coaxial line family gateway equipments, such as DOCSIS terminal devices.Coaxial line set top box
811 are connected with the EoC home gateways 810, and the digital television radio-frequency signal forwarded through the EoC home gateways and simulation are believed
Number it is converted into television display signals.The ONU units 806, EoC head-end units 807, D/A conversion unit 809 and IPQAM equipment
808 may be generally disposed in corridor；The EoC home gateways 810 and coaxial line set top box 811 are generally arranged at home dwelling
In.The OLT units 804 are preferably 10G OLT, and the corresponding ONU units 806 are preferably 10G ONU.
In the present invention, in transmitting terminal（Or computer room end）, whether video flowing（Regarded including live video data stream, program request
Frequency data stream or analog program source）Or for Internet data conversions into after IP packets, it is transferred to optical node from computer room（I.e.
From OLT units to ONU units）Transmitted using complete IP network；In receiving terminal（Or family end）, IP packets first by
IPQAM equipment is modulated conversion, realizes that video flowing is transferred to home videos terminal from optical node by coaxial line（That is home network
Pass and set top box）, this process transmits using coaxial line, and modulation demodulation system is coaxial line digitlization.
Digitlization of the integrated service of the present invention in HFC sends, received, transmission method and system realize including
The totally digitilized IP transmission of IP integrated services including direct broadcast television signals, i.e. IP integrated services are got home being transmitted across of front yard from computer room
Journey all digitizes, and both ensure that the QoS of IP Integrated Services Transmissions, makes the whole transport network architecture letter of IP integrated services again
It is single, flexibly.Although the cost of existing IPQAM equipment is very high, present invention employs IPQAM equipment, IPQAM equipment is will be existing
Some IPQAM equipment carries out chip processing, greatly reduces production cost, so matching somebody with somebody one even in each optical node
IPQAM equipment will not also be such that network cost rises significantly.Traditional IPQAM costs it is higher be primarily due to employ FPGA,
Although it is easy to change using the FPGA IPQAM realized, but cost is certainly too high, is unsuitable to apply in the present invention.And institute of the present invention
The IPQAM equipment stated is to realize IPQAM using IC, greatly reduces IPQAM cost.
The present invention is using 10G-PON transmission videos（Certainly, as the development present invention in the future is also not limited to using 10G-
The bandwidth of PON transmission bandwidth, i.e. OLT and ONU can further expand）, simulation ray machine is eliminated, is realized including live electricity
Depending on the integrated service including signal and analog program source in fiber-coaxial line（Abbreviation light copper）Hybrid network（HFC）In it is total
Word IP is transmitted, and transmission is more reliable, eliminates all analog transmission facilities in current light copper hybrid network, has simplified net significantly
The complexity of network, both ensure that the QoS of transmission, make whole transport network architecture simple and flexible, easy to maintain and management again.
In addition, the present invention moves down into IPQAM after optical node together with EoC head-end units, and IPQAM is real by chip
Now, small volume, small power consumption, cost are low；EoC solves the every other service traffics beyond live/order video stream；But also
Coaxial line resource is taken full advantage of, the set top box of user terminal is not required to any change, coaxial line there are enough bandwidth to register one's residence, can base
The problem of this solution home network.
In summary, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (7)
- A kind of 1. digitlization method of reseptance of integrated service in HFC, it is characterised in that number of the integrated service in HFC Word method of reseptance includes：IP packets are received from IP network；IPQAM modulation is carried out to the IP packets comprising live video data stream and the IP packets comprising order video data flow Obtain digital television radio-frequency signal；EoC processing is carried out to Internet IP packets and obtains EoC radiofrequency signals；To including simulation The IP packets of program source carry out digital-to-analogue conversion and obtain analog signal；Using coaxial line by the digital television radio-frequency signal, the EoC radiofrequency signals and the analog signal transmission to EoC family Front yard gateway, the EoC radiofrequency signals are handled so as to the EoC home gateways and are connected with the EoC home gateways Coaxial line set top box the digital television radio-frequency signal and the analog signal are converted into television display signals.
- A kind of 2. digitalized transmission method of integrated service in HFC, it is characterised in that number of the integrated service in HFC Word transmission method includes：Live video data circulation is changed into IP packets to be sent on IP network；Order video data flow and analog program source are converted into IP packets to be sent on IP network；Or/andInternet IP packets are sent on IP network；IP packets are received from IP network；IPQAM modulation is carried out to the IP packets comprising live video data stream and obtains digital television radio-frequency signal；The digital television radio-frequency signal is transferred to coaxial line set top box using coaxial line and is converted into television display signals；IPQAM modulation is carried out to the IP packets comprising live video data stream and the IP packets comprising order video data flow Obtain digital television radio-frequency signal；EoC processing is carried out to the Internet IP packets and obtains EoC radiofrequency signals；Or/and Digital-to-analogue conversion is carried out to the IP packets comprising analog program source and obtains analog signal；Using coaxial line by the digital television radio-frequency signal, the EoC radiofrequency signals and the analog signal transmission to EoC family Front yard gateway, the EoC radiofrequency signals are handled so as to the EoC home gateways and are connected with the EoC home gateways Coaxial line set top box the digital television radio-frequency signal and the analog signal are converted into television display signals.
- 3. a kind of digitlization of integrated service in HFC sends system, it is characterised in that number of the integrated service in HFC Wordization, which sends system, to be included：Live video program source, there is provided live video data stream；Video server and digital content management device, it is connected with the live video program source, by the live video data stream It is converted into IP packets；OLT units, it is connected with the video server and digital content management device, by the IP for including live video program source Packet is sent on IP network；Internet router, it is connected with the OLT units, there is provided Internet IP packets are so that the OLT units are by institute Internet IP packets are stated to be sent on IP network；Video server and the digital content management device provides the IP packets for including order video data flow, so as to described IP packets comprising order video data flow are sent on IP network by OLT units；Analog-to-digital conversion and IP encapsulation units, it is connected with the OLT units, analog program source is subjected to analog-to-digital conversion and is packaged into IP Packet, so that the IP packets comprising analog program source are sent on IP network by the OLT units.
- 4. digitlization of the integrated service according to claim 3 in HFC sends system, it is characterised in that：The OLT is mono- Member is 10G OLT units.
- A kind of 5. digitlization reception system of integrated service in HFC, it is characterised in that number of the integrated service in HFC Word reception system includes：ONU units, receive the IP packets that OLT units are sent；The IP packets include Internet IP packets, included The IP packets of live video data stream, the IP packets comprising order video data flow and the IP numbers comprising analog program source According to bag；EoC head-end units, it is connected with the ONU units, EoC processing is carried out to Internet IP packets and obtains EoC radio frequencies letter Number；IPQAM equipment, it is connected with the ONU units, to the IP packets comprising live video data stream and includes order video The IP packets of data flow carry out IPQAM modulation and obtain digital television radio-frequency signal；D/A conversion unit, it is connected with the ONU units, the IP packets comprising analog program source is subjected to digital-to-analogue conversion acquisition Analog signal；EoC home gateways, pass through coaxial line and the IPQAM equipment, the EoC head-end units and the D/A conversion unit point Not Xiang Lian, receive and handle the EoC radiofrequency signals, forward the digital television radio-frequency signal and the analog signal；Coaxial line set top box, it is connected with the EoC home gateways, the digital television radio-frequency signal and analog signal is converted into Television display signals.
- A kind of 6. digitization transmission system of integrated service in HFC, it is characterised in that number of the integrated service in HFC Word Transmission system includes：Live video program source, there is provided live video data stream；Video server and digital content management device, it is connected with the live video program source, by the live video data stream It is converted into IP packets；OLT units, it is connected with the video server and digital content management device, by the IP for including live video program source Packet is sent on IP network；ONU units, receive the IP packets that OLT units are sent；IPQAM equipment, it is connected with the ONU units, IPQAM modulation is carried out to the IP packets comprising live video data stream and is obtained Obtain digital television radio-frequency signal；EoC home gateways, phase is distinguished by coaxial line and the IPQAM equipment, an EoC head-end units and a D/A conversion unit Even, receive and handle the EoC radiofrequency signals of the EoC head-end units output, forward the digital television radio-frequency signal；Coaxial line set top box, it is connected with the EoC home gateways, the digital television radio-frequency signal is converted into TV display letter Number.
- 7. digitization transmission system of the integrated service according to claim 6 in HFC, it is characterised in that the synthesis Digitization transmission system of the business in HFC also includes：Internet router, it is connected with the OLT units, there is provided Internet IP packets are so that the OLT units are by institute Internet IP packets are stated to be sent on IP network；Video server and the digital content management device provides the IP packets for including order video data flow, so as to described IP packets comprising order video data flow are sent on IP network by OLT units；Analog-to-digital conversion and IP encapsulation units, it is connected with the OLT units, analog program source is subjected to analog-to-digital conversion and is packaged into IP Packet, so that the IP packets comprising analog program source are sent on IP network by the OLT units；EoC head-end units, it is connected with the ONU units, EoC processing acquisitions EoC is carried out to the Internet IP packets and is penetrated Frequency signal；The IPQAM equipment carries out IPQAM modulation to the IP packets comprising order video data flow and obtains digital television radio-frequency Signal；D/A conversion unit, it is connected with the ONU units, the IP packets comprising analog program source is subjected to digital-to-analogue conversion acquisition Analog signal；The EoC home gateways are respectively connected with by coaxial line and the EoC head-end units and the D/A conversion unit, are received And handle the EoC radiofrequency signals and forward the digital television radio-frequency signal and the analog signal；The digital television radio-frequency signal and the analog signal are converted into television display signals by the coaxial line set top box；The OLT units are 10G OLT units, and the ONU is 10G ONU.
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| CN201310119896.0A CN104104991B (en) | 2013-04-08 | 2013-04-08 | Digitlization transmission, reception, transmission method and system of the integrated service in HFC |
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| CN104104991B true CN104104991B (en) | 2018-02-06 |
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| CN106332382A (en) * | 2015-06-18 | 2017-01-11 | 东林科技股份有限公司 | Wired/wireless control system and data bridging method therefor |
| CN105611323B (en) * | 2015-12-23 | 2018-10-23 | 南京爱布谷网络科技有限公司 | The broadbands EOC and cable television services are total to cable access system and frequency spectrum distributing method |
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| CN101969439A (en) * | 2010-10-11 | 2011-02-09 | 北京中科大洋科技发展股份有限公司 | System for realizing TV news live broadcast by using wireless communication network |
| CN102056016A (en) * | 2010-09-21 | 2011-05-11 | 顾海涛 | Bi-directional digital TV video on demand realizing device with PON (Passive Optical Network) and IPQAM (Internet Protocol Quadrature Amplitude Modulator) structure |
| CN102300119A (en) * | 2011-09-07 | 2011-12-28 | 华为软件技术有限公司 | Hybrid live broadcasting method and equipment |
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| US7742407B2 (en) * | 2005-11-10 | 2010-06-22 | Scientific-Atlanta, Llc | Quality of service management in a switched digital video environment |
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| CN102056016A (en) * | 2010-09-21 | 2011-05-11 | 顾海涛 | Bi-directional digital TV video on demand realizing device with PON (Passive Optical Network) and IPQAM (Internet Protocol Quadrature Amplitude Modulator) structure |
| CN101969439A (en) * | 2010-10-11 | 2011-02-09 | 北京中科大洋科技发展股份有限公司 | System for realizing TV news live broadcast by using wireless communication network |
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