CN102088381B - Ultrahigh-frequency wideband network system - Google Patents
Ultrahigh-frequency wideband network system Download PDFInfo
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- CN102088381B CN102088381B CN2010106189752A CN201010618975A CN102088381B CN 102088381 B CN102088381 B CN 102088381B CN 2010106189752 A CN2010106189752 A CN 2010106189752A CN 201010618975 A CN201010618975 A CN 201010618975A CN 102088381 B CN102088381 B CN 102088381B
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Abstract
The invention discloses an ultrahigh-frequency wideband network system. The ultrahigh-frequency wideband network system comprises a front end network system and an access network system, wherein the front end network system is used for generating and transmitting five signal sources, including a first signal source with a frequency less than 860 MHz, a second signal source with a frequency between 950 MHz and 1.1GHz, a third signal source with a frequency between 1.2 GHz and 1.7 GHz, a fourth signal source with a frequency between 1.8 GHz and 2.3 GHz, and a fifth signal source with a frequency between 2.4 GHz and 2.8 GHz; and the access network system is used for receiving the five signals from the front end network system, and transmitting the five signals to the interior of a user house through a coaxial network. The ultrahigh-frequency wideband network system not only can achieve the interconnection and intercommunication of the broadcasting television network, the telecommunication network and the internet so as to share network resources, but also can provide higher wideband than the existing fiber-to-the-home service, and can provide the indoor wireless services of 3G (the third generation telecommunication), WIFI (Wireless Fidelity) and the like, thereby providing personalized and all-media services.
Description
Technical field
The present invention relates to a kind of broadband network system, relate in particular to the cable TV broadband network system, belong to networking technology area.
Background technology
In January, 2010, State Council determined to accelerate to advance the integration of three networks development of telecommunications network, broadcasting and television network, the Internet, realized that three nets interconnect, resource-sharing, and the many services such as speech, data and radio and television are provided for the user.For telecom operators, how to make one wider, faster, more excellent, the network that adapts to integration of three networks business development demand has become unavoidable problem.From network architecture end to end, Access Network is most important, promote the bandwidth of whole net, at first needs to promote the bandwidth of Access Network, so each large operation commercial city is in layout energetically with build the high-speed wideband access network.
The at present networking of the operators such as telecommunications and broadcasting and TV is imperfection also, we are from analyses such as business, bandwidth, still has problems.At first single access network can't satisfy the user to the integrated demand of live telecast, video, voice-and-data business, at present, TV programme is mainly by the single carrying of broadcasting and television network, the voice class service is mainly by the single carrying of telecommunications network, data services is mainly by the Internet bearer, lack between three networks and effectively interconnect, the user need to obtain different contents from different networks.There is the situation of repeated construction in the capital construction of three networks, causes the shortcomings such as the wasting of resources, complex management, maintenance cost are high, efficient is low.Secondly access bandwidth is not enough, can not well satisfy the user to the demand of video traffic, and along with the development in the high Qinghua of video, the user presents explosive growth to high-definition live broadcasting TV, high definition stream media business, and the access bandwidth demand more than the 10MMbps is increasing.At last, the user strengthens day by day to the demand of the wireless traffics such as 3G, and the indoor covering of these wireless traffics is relatively poor, and in order to build high-quality wireless indoor overlay network, telecom operators need to drop into huge fund.
General Bureau of Radio, Film and Television is actively pushing forward the construction of Next generation broadcasting network (NGB:Next GenerationBroadcasting network), and the expansion Optical Fiber Transmission coverage that various places NGB networking is suited measures to local conditions has realized Fiber-To-The-Building substantially; It is like a raging fire that the bidirectional rebuilding work of Access Network is carried out.If radio, TV and film industries are walked according to the road of telecom operators, only be confined to the bilateral network transformation, the broadband inserting service with the telecommunications without differences is provided, will face the competitive environment of a very severe.The network technology characteristics of broadcasting and TV are very good, are point-to-area network technologies, and the frequency of access cable supports more than the 1GHZ, nearly cover all families.
Therefore, at present access network system exists that the full-service bearing capacity is poor, access bandwidth is not enough and the problems such as the indoor covering of wireless traffic is poor.
Summary of the invention
One of purpose of the present invention provides a kind of broadband network system that can realize the hyperfrequency that broadcasting and television network, telecommunications network, the Internet three nets interconnect.
Two of purpose of the present invention provides the higher bandwidth of the present fiber entering household of a kind of ratio.
For achieving the above object, the technical solution used in the present invention is:
The broadband network system of the first hyperfrequency of the present invention comprises front network system and access network system; Described front network system comprises the broadcast type digital TV front-end, the low frequency optical sender, the first optical transport network, the low frequency optical receiver, the interactive digital television front end, IP network, EPON, the EOC local side, intermediate frequency IPQAM equipment, the intermediate frequency optical sender, the second optical transport network, the intermediate frequency optical receiver, Remote Radio Unit, be used for reception and processed voice and be connected the 3G transmission system that is connected with described Remote Radio Unit with interaction data, WAP (wireless access point), and be used for reception and processed voice and be connected WIFI and the WIMAX transmission system that is connected with described WAP (wireless access point) with interaction data, described broadcast type digital TV front-end be used for to receive and is connected broadcast television signal and is connected with the low frequency optical sender, described the first optical transport network by optical fiber respectively with described low frequency optical sender, the low frequency optical receiver connects; Described interactive digital television front end is used for receiving and being connected interactive television content and being connected with IP network, and described EPON is connected with IP network by optical fiber and this EPON is connected with the EOC local side apparatus; Described intermediate frequency IPQAM equipment be used for to receive and is connected high definition and is connected with satellite broadcast signal and is connected with described intermediate frequency optical sender, and described the second optical transport network is connected with intermediate frequency optical sender, intermediate frequency optical receiver respectively by optical fiber; Described 3G transmission system is used for reception and is connected with interaction data with processed voice and is connected with described Remote Radio Unit; Described WIFI is connected reception and is connected with interaction data with processed voice and is connected with described WAP (wireless access point) with the WIMAX transmission system; It is the following first signal source of 860MHz that described low frequency optical receiver is used for transmission frequency, described EOC local side apparatus for generation of and transmission frequency be the secondary signal source of 950MHz～1.1GHz, it is the 3rd signal source of 1.2GHz～1.7GHz that described intermediate frequency optical receiver is used for transmission frequency, described Remote Radio Unit for generation of and transmission frequency be the 4th signal source of 1.8GHz～2.3GHz, described wireless access point device for generation of and transmission frequency be the 5th signal source of 2.4GHz～2.8GHz;
Described access network system comprises the ultra-high frequency signal mixer, the hyperfrequency branch distributor, indoor distributor of above hyperfrequency and indoor demultiplexer more than, the input of described ultra-high frequency signal mixer respectively with the low frequency optical receiver, the EOC local side, the intermediate frequency optical receiver, Remote Radio Unit is connected output port and is connected be used for to receive the first signal source with WAP (wireless access point), the secondary signal source, the 3rd signal source, the 4th signal source and the 5th signal source, the output of described ultra-high frequency signal mixer is connected with the input of hyperfrequency branch distributor, the output of described hyperfrequency branch distributor is connected with the input of the indoor distributor of each hyperfrequency respectively, and the output of the indoor distributor of described each hyperfrequency is connected with the input of indoor demultiplexer more than.
Further, ultra-high frequency signal mixer of the present invention is by closing road port, corresponding the first port that receives the first signal source, corresponding the second port that receives the secondary signal source, corresponding the 3rd port that receives the 3rd signal source, corresponding the 4th port that receives the 4th signal source, the corresponding five-port that receives the 5th signal source, the first low pass filter, the second low pass filter, the first high pass filter, the first band pass filter, the second band pass filter and the 3rd band pass filter form, wherein, the first low pass filter is used for receiving the first signal source, the first high pass filter be used for to receive the secondary signal source, and the first low pass filter be connected high pass filter and be connected with the second low pass filter respectively; The first band pass filter is used for receiving the 3rd signal source, the second band pass filter is used for receiving the 4th signal source, the 3rd band pass filter be used for to receive the 5th signal source, and the second low pass filter, the first band pass filter, the second band pass filter and the 3rd band pass filter inside are closed Lu Houyu and closed the road port output signal that is connected.
Further, indoor demultiplexer of the present invention is comprised of separator input port, first user port, the second user port, the 3rd low pass filter and the second high pass filter, what described the 3rd low pass filter, the second high pass filter were used for receiving first signal source, secondary signal source, the 3rd signal source, the 4th signal source and the 5th signal source closes the road signal, and described the 3rd low pass filter output signal that is connected with the first user port; Described the second high pass filter output signal that is connected with the second user port.
The broadband network system of the second hyperfrequency of the present invention comprises front network system and access network system; Described front network system comprises the broadcast type digital TV front-end, the low frequency optical sender, the first optical transport network, the low frequency optical receiver, the interactive digital television front end, IP network, EPON, the EOC local side, intermediate frequency IPQAM equipment, the intermediate frequency optical sender, the second optical transport network, the intermediate frequency optical receiver, Remote Radio Unit, be used for reception and processed voice and be connected the 3G transmission system that is connected with described Remote Radio Unit with interaction data, WAP (wireless access point), and be used for reception and processed voice and be connected WIFI and the WIMAX transmission system that is connected with described WAP (wireless access point) with interaction data, described broadcast type digital TV front-end be used for to receive and is connected broadcast television signal and is connected with the low frequency optical sender, described the first optical transport network by optical fiber respectively with described low frequency optical sender, the low frequency optical receiver connects; Described interactive digital television front end is used for receiving and being connected interactive television content and being connected with IP network, and described EPON is connected with IP network by optical fiber and this EPON is connected with the EOC local side apparatus; Described intermediate frequency IPQAM equipment be used for to receive and is connected high definition and is connected with satellite broadcast signal and is connected with described intermediate frequency optical sender, and described the second optical transport network is connected with intermediate frequency optical sender, intermediate frequency optical receiver respectively by optical fiber; Described 3G transmission system is used for reception and is connected with interaction data with processed voice and is connected with described Remote Radio Unit; Described WIFI is connected reception and is connected with interaction data with processed voice and is connected with described WAP (wireless access point) with the WIMAX transmission system; It is the following first signal source of 860MHz that described low frequency optical receiver is used for transmission frequency, described EOC local side apparatus for generation of and transmission frequency be the secondary signal source of 950MHz～1.1GHz, it is the 3rd signal source of 1.2GHz～1.7GHz that described intermediate frequency optical receiver is used for transmission frequency, described Remote Radio Unit for generation of and transmission frequency be the 4th signal source of 1.8GHz～2.3GHz, described wireless access point device for generation of and transmission frequency be the 5th signal source of 2.4GHz～2.8GHz;
Described access network system comprises the ultra-high frequency signal mixer, hyperfrequency closes distributor, indoor distributor of above hyperfrequency and indoor demultiplexer more than, the input of described ultra-high frequency signal mixer respectively with the low frequency optical receiver, the EOC local side, the intermediate frequency optical receiver is connected output port and is connected be used for to receive the first signal source with Remote Radio Unit, the secondary signal source, the 3rd signal source and the 4th signal source, the input that described hyperfrequency closes distributor is connected with the road port that closes of described ultra-high frequency signal mixer, and in addition three inputs that described hyperfrequency closes distributor are connected respectively to be used for receiving respectively the 5th signal source with described WAP (wireless access point), described hyperfrequency closes the corresponding connection of input of output with the indoor distributor of each hyperfrequency of distributor, and the output of the indoor distributor of described each hyperfrequency is connected with the input of indoor demultiplexer more than.
Further, ultra-high frequency signal mixer of the present invention is by closing road port, corresponding the first port that receives the first signal source, corresponding the second port that receives the secondary signal source, corresponding the 3rd port that receives the 3rd signal source, corresponding the 4th port that receives the 4th signal source, the first low pass filter, the second low pass filter, the first high pass filter, the first band pass filter, the second band pass filter and the 3rd band pass filter form, wherein, the first low pass filter is used for receiving the first signal source, the first high pass filter be used for to receive the secondary signal source, and the first low pass filter be connected high pass filter and be connected with the second low pass filter respectively; The first band pass filter be used for to receive the 3rd signal source, and the second band pass filter is used for receiving the 4th signal source, and the second low pass filter, the first band pass filter, the second band pass filter inside close Lu Houyu and close the road port output signal that is connected.
Further, indoor demultiplexer of the present invention is comprised of separator input port, first user port, the second user port, the 3rd low pass filter and the second high pass filter, what described the 3rd low pass filter, the second high pass filter were used for receiving first signal source, secondary signal source, the 3rd signal source, the 4th signal source and the 5th signal source closes the road signal, and described the 3rd low pass filter output signal that is connected with the first user port; Described the second high pass filter output signal that is connected with the second user port.
Further, hyperfrequency of the present invention close distributor by 1 minute 3 distributor, close 1 mixer for three 2 and three 1 minute 4 distributors form, described 1 minute 3 distributor are used for receiving 1 minute 3 distributor of the signal that closes road port output of ultra-high frequency signal mixer and this and close 1 mixer and be connected with described three 2 respectively, described three 2 are closed 1 mixer and are respectively applied to receive the signal of the 5th signal source and these three 2 and close 1 mixer each is connected with described 1 minute 4 distributors, the corresponding connection of input of described respectively 1 minute 4 distributor and the indoor distributor of each hyperfrequency.
The first signal source of above-mentioned 5 tunnel signal sources refers to the following frequency signal of 860MHz, and the unidirectional business such as simulated television, Digital Television and FM broadcasting are provided; The secondary signal source refers to 950MHz～1.1GHz frequency signal, is used for the access of EOC high frequency two-way broadband, provides the two-way interactives such as data, video content professional; The 3rd signal source refers to 1.2GHz～1.7GHz frequency signal, is used for the transmission intermediate frequency signal, and the more broadcasting service of multicapacity such as high definition is provided; The 4th signal source refers to 1.8GHz～2.3GHz frequency signal, is used for realizing that indoor covering or the high-speed data of 3G signal are descending; The 5th signal source refers to 2.4GHz～2.8GHz, is used for realizing WIFI, the indoor covering of WIMAX wireless signal.
With the contrast of existing network system, the present invention has following beneficial effect:
(1) the present invention utilizes unique network architecture and equipment, can be at signals such as a coaxial cable carrier broadcast digital TV, broadcasting intermediate-freuqncy signal, cable TV network two-way broadband signal, 3G signal and WIFI, the indoor covering of 3G signal particularly is provided, realized interconnecting of broadcasting and television network, wireless communication networks, telecommunications network, the Internet, promote sharing of Internet resources, can reduce significantly the repeated construction investment.
(2) the present invention expands to 2.8GHz with the frequency of family coaxial cable from present 860MHz, nearly three times have been expanded, can realize the above data downstream of 6Gbps, the access of every unit 600Mbps two-way broadband, the bandwidth higher than present fiber entering household is provided, can satisfies under the integration of three networks user fully for the demand of voice, mass data, magnanimity video traffic.
(3) the present invention is based on existing broadcasting and TV wired network system and design, greatly widened the frequency band of the own radio and television of broadcasting and TV, utilize the broadband signal frequency carrying of intermediate frequency to the broadcasting services such as high definition of bandwidth demand maximum; Except broadcast television signal, network system of the present invention has the professional signal input interface such as 3G signal and WIFI, and the real network construction can increase and change flexibly according to service needed, and the construction period is shorter.
(4) the present invention can realize that not only broadcasting and television network, telecommunications network, the Internet three nets interconnect, Internet resources are shared, and can provide the bandwidth higher than present fiber entering household, the wireless traffics such as 3G, WIFI can be provided, the professional and service of personalized, full media is provided for the user.
Description of drawings
Fig. 1 is front network system configuration schematic block diagram of the present invention;
Fig. 2 is the first access network system structural representation block diagram of the present invention;
Fig. 3 is the structural representation block diagram of the ultra-high frequency signal mixer among Fig. 2;
Fig. 4 is the structural representation block diagram of the indoor demultiplexer among Fig. 2;
Fig. 5 is the structural representation block diagram of the second access network system of the present invention;
Fig. 6 is the structural representation block diagram that the hyperfrequency among Fig. 3 closes distributor.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
The front network system of the broadband network system of hyperfrequency of the present invention, the structural representation block diagram as shown in Figure 1.
Broadcast television signal passes through the multiplexing of broadcast type digital TV front-end among Fig. 1, scrambling, modulation, after signal mixing etc. are processed, be input in the low frequency optical sender, in the low frequency optical sender, convert the electrical signal to light signal and be coupled in the optical fiber and transmit, be transferred to the trunk machine room by the first optical transport network from the broadcasting and TV front end, the low frequency optical receiver at corridor place, this network system can be utilized original broadcasting and TV cable network and equipment, be transformed into the signal of telecommunication after the low frequency optical receiver receives and obtain the first signal source signal, this signal is input to the ultra-high frequency signal mixer of access network system by the coaxial cable radio frequency correspondence receives first port in first signal source.
Among Fig. 1, interactive television content comprises the coding of the content process interactive digital television front ends such as video request program, the media orchestration audit, the content page issue, after contents distributions etc. are processed, enter the core network of IP network, arrive corridor optical node place by technical transmission such as IP network and EOPN Ethernet passive optical network systems, EOC local side apparatus by corridor after the optical node place receives is modulated to high frequency 950MHz～1.1GHz frequency signal with the IP signal, obtain the secondary signal source signal, this signal is input to the ultra-high frequency signal mixer of access network system by the coaxial cable radio frequency correspondence receives second port in secondary signal source.
Among Fig. 1, the signal such as high-definition content and satellite broadcasting is converted to the medium frequency electric signal by intermediate frequency IPQAM equipment, frequency arrives 1.7GHz about 1.1GHz, after the emission of intermediate frequency optical sender, input the corridor optical node place that the second optical transport network is transferred to broadcasting and TV, be transformed into the signal of telecommunication after the intermediate frequency optical receiver at optical node place receives and obtain the 3rd signal source signal, the correspondence that this signal is input to the ultra-high frequency signal mixer of access network system by the coaxial cable radio frequency receives the 3rd port of the 3rd signal source.
Voice and interaction data are transferred to the corridor optical node place of broadcasting and TV among Fig. 1 by the 3G optical fiber transmission subsystem, 3G Remote Radio Unit by corridor is transformed into 1.8GHz～2.3GHz high-frequency signal, obtain the 4th signal source signal, the correspondence that this signal is input to the ultra-high frequency signal mixer of access network system by the coaxial cable radio frequency receives the 4th port of the 4th signal source.
Voice and interaction data are transferred to the corridor optical node place of broadcasting and TV among Fig. 1 by WIFI and WIMAX signal access subsystem, be transformed into 2.4GHz～2.8GHz high-frequency signal by equipment such as WIFI access points, obtain the 5th signal source signal, the correspondence that this signal is input to access network system by the coaxial cable radio frequency receives the five-port of the 5th signal source.
Equipment in the systems such as the intermediate frequency IPQAM among Fig. 1, intermediate frequency optical sender, intermediate frequency optical receiver, 3G and WIFI etc. can utilize the existing equipment on the market.
Among the present invention, the broadband network system of hyperfrequency comprises two kinds of access network systems, and the structural representation block diagram of the first connecting system as shown in Figure 2.
The first access network system partly is comprised of ultra-high frequency signal mixer, hyperfrequency branch distributor, the indoor distributor of hyperfrequency, indoor demultiplexer, coaxial cable etc.
Above described first signal source to this 5 road signal of five signal sources be input to 5 corresponding input ports of ultra-high frequency signal mixer by radio frequency interface.The ultra-high frequency signal mixer generally is placed on the light-receiving node near signal source, locates such as the corridor optical node place of CHINA RFTCOM Co Ltd, the light current well of building etc.
The structured flowchart of ultra-high frequency signal mixer comprises that it is output port that 5 signal input ports and 1 close road port as shown in Figure 3.Port one input first via signal source among Fig. 3: the following frequency signal of 860MHz; Port 2 input the second tunnel signal source: 950MHz～1.1GHz frequency signals; Port 3 input Third Road signal sources: 1.2GHz～1.7GHz frequency signal; Port 4 input the four tunnel signal source: 1.8GHz～2.3GHz frequency signals; Port 5 input the five tunnel signal source: 2.4GHz～2.8GHz frequency signals.
Ultra-high frequency signal mixer of the present invention is different from present GSM/CDMA signal combiner, broadband signal mixer etc., the ultra-high frequency signal mixer is supported the super bandwidth signals frequency of 2.8GHZ, possess 5 tunnel signal source input ports, therefore the circuit design of ultra-high frequency signal mixer of the present invention must be unique, and its concrete structure is described as follows:
As shown in Figure 3, the signal of port one input links to each other with the first low pass filter, and the first low pass filter is low pass filter, and cut-off frequency is 860MHz, guarantees high-quality the passing through of the following frequency signal of 860MHz; The signal of port 2 inputs links to each other with the first high pass filter, and the first high pass filter is high pass filter, and cut-off frequency is 950MHz, guarantees high-quality the passing through of the above frequency signal of 950MHz; The first low pass filter, the first high pass filter adopt the cavity body filter design, make two paths of signals that good isolation be arranged, and guarantee that the inhibition of two paths of signals reaches best.
Be input to the second low pass filter after the signal of the first low pass filter and the output of the first high pass filter mixes, the second low pass filter is low pass filter, and cut-off frequency is 1.1GHz, guarantees high-quality the passing through of the following frequency signal of 1.1GHz.The signal of port 3 inputs links to each other with the first band pass filter, and the first band pass filter is band pass filter, covers the frequency band that transmits and receives of its passage, and frequency range is 1.2GHz～1.7GHz; The signal of port 4 inputs links to each other with the second band pass filter, and the second band pass filter is band pass filter, covers the frequency band that transmits and receives of its passage, and frequency range is 1.8GHz～2.3GHz; The signal of port 5 inputs links to each other with the 3rd band pass filter, and the 3rd band pass filter is band pass filter, covers the frequency band that transmits and receives of its passage, and frequency range is 2.4GHz～2.8GHz;
The second low pass filter, the first band pass filter, the second band pass filter and the 3rd band pass filter adopt the cavity body filter design, the device, structure, PCB and the technique that adopt have good high frequency characteristics, circuit design must make several signals that good isolation is arranged, and guarantees that the inhibition of 4 road signals reaches best.
Port 6 outputs by closing road port after the signal of the second low pass filter, the first band pass filter, the second band pass filter and the output of the 3rd band pass filter mixes.
The above-mentioned design of ultra-high frequency signal mixer can guarantee the isolation of filter with low insertion loss, low frequency and the super bandwidth signals of high frequency of high-frequency signal, and under the prerequisite that guarantees technical indicator, volume is moderate, cost is lower.
After the mixed processing through the ultra-high frequency signal mixer, from port 6 outputs one tunnel radiofrequency signal of Fig. 3; This radiofrequency signal is input to hyperfrequency branch distributor among Fig. 1 by coaxial cable.According to the coverage needs, the function that the hyperfrequency branch distributor can integrated splitter is taken out a part of signal and is presented to branch line or user terminal, and all the other most of signals then still continue transmission by former direction; Perhaps the function of integrated splitter not can be divided into multichannel output equably with closing the road signal.The hyperfrequency branch distributor generally has 1 minute 6,1 minutes 12 etc., is input to the different indoor indoor distributors of hyperfrequency from the different signals of port output that distribute of hyperfrequency branch distributor by coaxial cable, thereby is assigned to signal different indoor with tree structure.
Hyperfrequency branch distributor among Fig. 2 is different from present branch distributor, also must support the super bandwidth signals frequency of 2.8GHz, must adopt the signal distributor spare that high frequency characteristics is better, cost performance is high.The hyperfrequency branch distributor generally is placed on the same position of ultra-high frequency signal mixer.
Distribute the signal of port output to be input to the indoor distributor of hyperfrequency by coaxial cable from one of hyperfrequency branch distributor, the hyperfrequency branch distributor generally has 12 or 24 output ports, and a hyperfrequency branch distributor can connect the indoor distributor of one or more hyperfrequencies.The indoor distributor of hyperfrequency has the multi-channel output mouth, input signal can be divided into equably multichannel output,
The indoor distributor of hyperfrequency also must be supported the super bandwidth signals frequency of 2.8GHz, can not adopt present signal distributor.The hyperfrequency branch distributor generally is placed on user's the user profile case position of registering one's residence.
Be input to indoor demultiplexer from the signal of a port output of the indoor distributor of hyperfrequency by coaxial cable.The indoor distributor of hyperfrequency can connect one or more indoor demultiplexers.
5 road signals that indoor demultiplexer among Fig. 2 will be blended in Coaxial Cables comprise that the signals such as cable TV signal, eoc signal, intermediate-freuqncy signal, 3G signal and WIFI separate, different signal output interfaces is provided respectively, connects different reception signal terminals.
The structure of indoor demultiplexer of the present invention as shown in Figure 4, it comprises 1 signal input port and 2 output ports.Be input to the port one of the first user port of indoor demultiplexer by coaxial cable from the signal of a port output of the indoor distributor of hyperfrequency, signal is inputted respectively the 3rd low pass filter and the second high pass filter, the 3rd low pass filter is low pass filter, cut-off frequency is 1.7GHz MHz, guarantee that the following frequency signal of 1.7GHz comprises the first signal source, secondary signal source and the 3rd signal source is high-quality passes through, and by port 2 outputs, port 2 is radio frequency interface, can watch the digital television broadcasting TV by the external set-top box of coaxial cable, can the broadband access of external EOC bidirectional terminal equipment, also can watch satellite-signal with being input to set-top box after the intermediate-freuqncy signal frequency reducing, high-definition signal etc.
The second high pass filter is high pass filter, cut-off frequency is 1.8GHz, guarantee high-quality the passing through of the above frequency signal of 1.8GHz, and by port 3 outputs, port 3 is radio frequency interface, external radio-frequency antenna, and this antenna can adopt the WIFI/3G dedicated antenna according to user's needs, or adopt the wide frequency antenna that covers WIFI, 3G and WIMAX signal, user WIFI, 3G and WIMAX voice, data and multimedia service are provided.
The 3rd low pass filter and the second high pass filter adopt the good cavity body filter design of high frequency characteristics, make two paths of signals have good isolation, other technologies index to satisfy the demanding terminal of finally registering one's residence.
Indoor demultiplexer also can be called user's face box, be the hyperfrequency device, must support the super bandwidth signals frequency of 2.8GHz, can not adopt present indoor user face box, indoor demultiplexer is installed on the indoor wall, disposes a plurality of indoor demultiplexers according to indoor room.
For the under powered situation of described the five tunnel signal source, the present invention has designed the second access network system of the broadband network system of hyperfrequency, as shown in Figure 5.
The second access network system comprises that ultra-high frequency signal mixer, hyperfrequency close the parts such as distributor, the indoor distributor of hyperfrequency, indoor demultiplexer, coaxial cable.
What be different from the first access network system is, native system is input to the first to the 4th signal source respectively 4 corresponding input ports of ultra-high frequency signal mixer, the structural representation block diagram of ultra-high frequency signal mixer as shown in Figure 3, after the mixed processing through the ultra-high frequency signal mixer, from port 6 outputs one tunnel radiofrequency signal of Fig. 3; The hyperfrequency that this radiofrequency signal is input to Fig. 6 by coaxial cable closes the port one of distributor, and the structural representation block diagram that hyperfrequency closes distributor as shown in Figure 6.
As shown in Figure 6, port one links to each other with 1 minute 3 distributor, and 1 minute 3 distributor is divided into 3 the tunnel with signal, inputs respectively 2 of Fig. 6 and closes in 1 mixer.Port 2,3,4 is inputted respectively the 5th signal source, and closes 1 mixer and link to each other with 2 respectively, 2 close 1 mixer with the two paths of signals mixed processing after in 1 minute 4 distributor of input, 4 divider signals were divided into the output of 4 road signals in 1 minute.Hyperfrequency closes distributor 31 minute 4 distributors, can export 12 road signals altogether.Hyperfrequency closes distributor can be designed to output in 1 minute 6,1 minutes 12,1 minutes 24 tunnel according to actual needs.
Distributor, mixer that hyperfrequency closes distributor inside are the hyperfrequency device, on present distributor, mixer design basis, adopt high frequency characteristics preferably device, structure, PCB and technique, circuit design must make several signals that good isolation is arranged.
Close signal that distributes port to export of distributor is input to Fig. 5 by coaxial cable the indoor distributor of hyperfrequency from hyperfrequency, network system after the indoor distributor of hyperfrequency is consistent with the first access network system, describes with reference to top technical scheme and realizes.
The second access network system closes the distributor input with the 5th signal source from the hyperfrequency of rear class, can effectively satisfy the low-power of the 5th signal source and input, and adapts to different network scenarios.
Claims (7)
1. the broadband network system of a hyperfrequency is characterized in that: comprise front network system and access network system; Described front network system comprises for converting the electrical signal to light signal and being coupled to the optical sender that optical fiber transmits, be used for receiving and the digital TV front-end of being connected broadcast television signal and being connected with described optical sender, the first optical transport network, being used for transmission frequency is the optical receiver in the following first signal source of 860MHz, the interactive digital television front end, IP network, EPON, the EOC local side apparatus, intermediate frequency IPQAM equipment, the intermediate frequency optical sender, the second optical transport network, the intermediate frequency optical receiver, Remote Radio Unit, WAP (wireless access point), be used for reception and processed voice and be connected the 3G transmission system that is connected with described Remote Radio Unit with interaction data, and be used for reception and processed voice and be connected WIFI and the WIMAX transmission system that is connected with described WAP (wireless access point) with interaction data; Described the first optical transport network is connected with described optical sender, optical receiver respectively by optical fiber; Described interactive digital television front end is used for receiving and being connected interactive television content and being connected with IP network, and described EPON is connected with IP network by optical fiber and this EPON is connected with the EOC local side apparatus; Described intermediate frequency IPQAM equipment be used for to receive and is connected high definition and is connected with satellite broadcast signal and is connected with described intermediate frequency optical sender, and described the second optical transport network is connected with intermediate frequency optical sender, intermediate frequency optical receiver respectively by optical fiber; Described EOC local side apparatus for generation of and transmission frequency be the secondary signal source of 950MHz～1.1GHz, it is the 3rd signal source of 1.2GHz～1.7GHz that described intermediate frequency optical receiver is used for transmission frequency, described Remote Radio Unit for generation of and transmission frequency be the 4th signal source of 1.8GHz～2.3GHz, described wireless access point device for generation of and transmission frequency be the 5th signal source of 2.4GHz～2.8GHz;
Described access network system comprises the ultra-high frequency signal mixer, the hyperfrequency branch distributor, indoor distributor of above hyperfrequency and indoor demultiplexer more than, the input of described ultra-high frequency signal mixer respectively with optical receiver, the EOC local side, the intermediate frequency optical receiver, Remote Radio Unit is connected output port and is connected be used for to receive the first signal source with WAP (wireless access point), the secondary signal source, the 3rd signal source, the 4th signal source and the 5th signal source, the output of described ultra-high frequency signal mixer is connected with the input of hyperfrequency branch distributor, the output of described hyperfrequency branch distributor is connected with the input of the indoor distributor of each hyperfrequency respectively, and the output of the indoor distributor of described each hyperfrequency is connected with the input of indoor demultiplexer more than.
2. the broadband network system of hyperfrequency according to claim 1, it is characterized in that: described ultra-high frequency signal mixer is by closing road port, corresponding the first port that receives the first signal source, corresponding the second port that receives the secondary signal source, corresponding the 3rd port that receives the 3rd signal source, corresponding the 4th port that receives the 4th signal source, the corresponding five-port that receives the 5th signal source, the first low pass filter, the second low pass filter, the first high pass filter, the first band pass filter, the second band pass filter and the 3rd band pass filter form, wherein, the first low pass filter is used for receiving the first signal source, the first high pass filter be used for to receive the secondary signal source, and the first low pass filter be connected high pass filter and be connected with the second low pass filter respectively; The first band pass filter is used for receiving the 3rd signal source, the second band pass filter is used for receiving the 4th signal source, the 3rd band pass filter be used for to receive the 5th signal source, and the second low pass filter, the first band pass filter, the second band pass filter and the 3rd band pass filter inside are closed Lu Houyu and closed the road port output signal that is connected.
3. the broadband network system of hyperfrequency according to claim 1, it is characterized in that: described indoor demultiplexer is comprised of separator input port, first user port, the second user port, the 3rd low pass filter and the second high pass filter, what described the 3rd low pass filter, the second high pass filter were used for receiving first signal source, secondary signal source, the 3rd signal source, the 4th signal source and the 5th signal source closes the road signal, and described the 3rd low pass filter output signal that is connected with the first user port; Described the second high pass filter output signal that is connected with the second user port.
4. the broadband network system of a hyperfrequency is characterized in that: comprise front network system and access network system; Described front network system comprises for converting the electrical signal to light signal and being coupled to the optical sender that optical fiber transmits, be used for receiving and the digital TV front-end of being connected broadcast television signal and being connected with described optical sender, the first optical transport network, being used for transmission frequency is the optical receiver in the following first signal source of 860MHz, the interactive digital television front end, IP network, EPON, the EOC local side apparatus, intermediate frequency IPQAM equipment, the intermediate frequency optical sender, the second optical transport network, the intermediate frequency optical receiver, Remote Radio Unit, WAP (wireless access point), be used for reception and processed voice and be connected the 3G transmission system that is connected with described Remote Radio Unit with interaction data, and be used for reception and processed voice and be connected WIFI and the WIMAX transmission system that is connected with described WAP (wireless access point) with interaction data, described the first optical transport network by optical fiber respectively with described optical sender, optical receiver connects; Described interactive digital television front end is used for receiving and being connected interactive television content and being connected with IP network, and described EPON is connected with IP network by optical fiber and this EPON is connected with the EOC local side apparatus; Described intermediate frequency IPQAM equipment be used for to receive and is connected high definition and is connected with satellite broadcast signal and is connected with described intermediate frequency optical sender, and described the second optical transport network is connected with intermediate frequency optical sender, intermediate frequency optical receiver respectively by optical fiber; Described EOC local side apparatus for generation of and transmission frequency be the secondary signal source of 950MHz～1.1GHz, it is the 3rd signal source of 1.2GHz～1.7GHz that described intermediate frequency optical receiver is used for transmission frequency, described Remote Radio Unit for generation of and transmission frequency be the 4th signal source of 1.8GHz～2.3GHz, described wireless access point device for generation of and transmission frequency be the 5th signal source of 2.4GHz～2.8GHz;
Described access network system comprises the ultra-high frequency signal mixer, hyperfrequency closes distributor, indoor distributor of above hyperfrequency and indoor demultiplexer more than, the input of described ultra-high frequency signal mixer respectively with optical receiver, the EOC local side, the intermediate frequency optical receiver is connected output port and is connected be used for to receive the first signal source with Remote Radio Unit, the secondary signal source, the 3rd signal source and the 4th signal source, the input that described hyperfrequency closes distributor is connected with the road port that closes of described ultra-high frequency signal mixer, and in addition three inputs that described hyperfrequency closes distributor are connected respectively to be used for receiving respectively the 5th signal source with described WAP (wireless access point), described hyperfrequency closes the corresponding connection of input of output with the indoor distributor of each hyperfrequency of distributor, and the output of the indoor distributor of described each hyperfrequency is connected with the input of indoor demultiplexer more than.
5. the broadband network system of hyperfrequency according to claim 4, it is characterized in that: described ultra-high frequency signal mixer is by closing road port, corresponding the first port that receives the first signal source, corresponding the second port that receives the secondary signal source, corresponding the 3rd port that receives the 3rd signal source, corresponding the 4th port that receives the 4th signal source, the first low pass filter, the second low pass filter, the first high pass filter, the first band pass filter, the second band pass filter and the 3rd band pass filter form, wherein, the first low pass filter is used for receiving the first signal source, the first high pass filter be used for to receive the secondary signal source, and the first low pass filter be connected high pass filter and be connected with the second low pass filter respectively; The first band pass filter be used for to receive the 3rd signal source, and the second band pass filter is used for receiving the 4th signal source, and the second low pass filter, the first band pass filter, the second band pass filter inside close Lu Houyu and close the road port output signal that is connected.
6. the broadband network system of hyperfrequency according to claim 4, it is characterized in that: described indoor demultiplexer is comprised of separator input port, first user port, the second user port, the 3rd low pass filter and the second high pass filter, what described the 3rd low pass filter, the second high pass filter were used for receiving first signal source, secondary signal source, the 3rd signal source, the 4th signal source and the 5th signal source closes the road signal, and described the 3rd low pass filter output signal that is connected with the first user port; Described the second high pass filter output signal that is connected with the second user port.
7. the broadband network system of hyperfrequency according to claim 4, it is characterized in that: described hyperfrequency closes distributor by 1 minute 3 distributor, close 1 mixer and three 1 minute 4 distributor compositions for three 2, described 1 minute 3 distributor are used for receiving 1 minute 3 distributor of the signal that closes road port output of ultra-high frequency signal mixer and this and close 1 mixer and be connected with described three 2 respectively, described three 2 are closed 1 mixer and are respectively applied to receive the signal of the 5th signal source and these three 2 and close 1 mixer each is connected with described 1 minute 4 distributors, the corresponding connection of input of described respectively 1 minute 4 distributor and the indoor distributor of each hyperfrequency.
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| CN102647233A (en) * | 2012-03-28 | 2012-08-22 | 北京城通脉络科技有限公司 | Multi-network fusion optical fiber link transmission system |
| CN103369727B (en) * | 2012-03-29 | 2016-06-22 | 中国移动通信集团公司 | A kind of radio frequency remote equipment, baseband processing equipment and data transmission method |
| CN103001698B (en) * | 2012-09-29 | 2018-02-13 | 北京吉视汇通科技有限责任公司 | Optical transmission system |
| CN105898349A (en) * | 2014-09-17 | 2016-08-24 | 江苏普达思信息科技有限公司 | Data push method by combining broadcast and TV wired network with Internet |
| CN209345154U (en) * | 2019-01-23 | 2019-09-03 | 易力声科技(深圳)有限公司 | A kind of antenna traces can be used for audio and Bluetooth signal |
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