Wireless ultra-wideband integration of three networks communication system and method thereofTechnical field
The present invention relates to relate to network system field, particularly relate to a kind of wireless ultra-wideband integration of three networks communicationSystem and method thereof.
Background technology
Wireless broadband communication technology is generally used UHF wave band (470-860MHz), S-band both at home and abroad at present(2.5-2.7GHz) and satellite frequency (13-14GHz) launch, but use these frequencies all to divideThere is not different defects.
UHF wave band: use UHF wave band to launch, the greatest problem facing is now exactly in UHF wave bandAlso exist other a large amount of wireless communications application simultaneously, as cable television, intercom, GPS, GSM etc.,These radio communications have taken most of frequency range of UHF, have therefore been difficult in UHF wave band, find oneContinuously, clean frequency range is launched. At present, each city can only be spelled intermittently conventionally in UHF wave bandGather out 40MHz bandwidth for transmitting, nonetheless, also cannot avoid other channel radios in this frequency rangeThe severe jamming that letter application causes.
S-band: along with the application of the 4G communication technology, the operating frequency of S-band (2.5-2.7GHz) is movedMove communication operator and take completely, the wireless communications application of all working in this frequency range must be closed, thisOne present situation is all same in worldwide. If existing MMDS TV station can not find new technology solutionCertainly scheme, will have to close down, and tens million of TV users cannot be watched any TV programme again, like this willCause huge economic loss and serious social influence.
Satellite frequency (13-14GHz): satellite rail position resource is very limited, and the cost of investment of launching an artificial satellite is hugeGreatly, (price of leased satellite transponder passage is about 5000 to use satellite to carry out the cost costliness of two-way communicationDollar/MHz. the month), satellite can not exceed 15 years common service life simultaneously, therefore uses satellite to carry out nothingLine communications applications can have significant limitation.
In the face of above-mentioned problem, country's settling mode adopting of having to, this one of FTTH of only having that Fiber to the home,And in sparsely populated vast rural area, it implements cost of investment huge needs, consider simultaneouslyTo national urbanization strategy and the required limit more all the year round of building Socialist New, the skill that this investment is hugeIt is also " Distant water cannot quench present thirst " that art solution seems.
Abroad, the X of GOOGLE Google laboratory has proposed " GOOGLE balloon net in June, 2013Network plan (Loon) ", this sounds that the project plan of making us mad lets countless making fly away at atmospheric advection layerWith the over pressure balloon of polyethylene, form a wireless network, be more not yet networking or network conditionsUnsettled area provides Internet service. But this project still has following deficiency:
1, physical transfer bandwidth deficiency: because it has adopted current known 2.4G, 5.8GWIMAX transmissionTechnology, bandwidth less than 100,000,000, only can, for data access, can not carry a large amount of HD, 3D, the numeral of 4KTelevision broadcasting;
2, there is certain frequency interferences problem;
3, face equally the territorial sky problem of various countries;
Although less with respect to the investment of launching an artificial satellite, for the private public affairs of being devoted to invest broadcasting and TV telecommunicationsDepartment or even level operator of less developed country are still a no small investment.
Summary of the invention
Based on this, for the problems referred to above, be necessary to propose a kind of wireless ultra-wideband integration of three networks communication system andIts method.
Technical scheme of the present invention is: a kind of wireless ultra-wideband integration of three networks communication system, comprises main website, baseStand and end user device, described main website comprises one stage signal receiving system, one stage signal treating apparatus, penetratesFrequently signal synthesizer, intermediate frequency controller, the signal output part of described one stage signal receiving system and described one-levelThe signal input part of signal processing apparatus connects, the signal output part of described one stage signal treating apparatus with described inThe first signal input of radiofrequency signal synthesizer connects, the signal output part of described radiofrequency signal synthesizer withThe signal input part of described intermediate frequency controller connects;
Described base station comprises that main website connects antenna, second signal treating apparatus is connected antenna with terminal use, instituteThe first signal input of stating main website connection antenna is connected with the signal output part of intermediate frequency controller, described main websiteThe signal output part that connects antenna is connected with the signal input part of described second signal treating apparatus, described secondaryThe signal output part of signal processing apparatus is connected antenna signal input part with described terminal use connects;
Described end user device comprises exterior aerial, Set Top Box and the 3rd cable modem, described chamberThe signal input part of outside antenna is connected antenna secondary signal output with the terminal use of described base station connects, instituteState exterior aerial first signal go out end and secondary signal output respectively with Set Top Box and the 3rd cable modulatedemodulateAdjust the signal input part of device to connect.
One stage signal receiving system receiving digital signals and the analog signal of main website, process dress by one stage signalPut and process the data signal and the analog signal that receive, then pass through radiofrequency signal synthesizer by number after treatmentWord signal and analog signal carry out that signal is synthetic to be converted into intermediate-freuqncy signal and to launch by intermediate frequency controller; Base stationMain website connect the intermediate-freuqncy signal of antenna reception main website transmitting, receive by the processing of second signal treating apparatusIntermediate-freuqncy signal, then by terminal use's antenna transmission intermediate-freuqncy signal after treatment; End user deviceExterior aerial receives, filters the intermediate-freuqncy signal that launch base station, changes signal frequency range, distribute signals.
In an embodiment, described one stage signal treating apparatus comprises demodulator, multiplexer, coding thereinDevice and modulator, the signal output part of the signal input part of described demodulator and described one stage signal receiving systemConnect, the signal output part of described demodulator is connected with the signal input part of described multiplexer, described multiplexerSignal output part be connected with the signal input part of described encoder, the signal output part of described encoder and instituteThe signal input part of stating modulator connects, the signal output part of described modulator and described radiofrequency signal synthesizerFirst signal input connect.
In one stage signal treating apparatus, demodulator the decode data signal and the analog signal that receive; EncoderData signal and analog signal that establishment, conversion receive; Modulators modulate, the stable data signal receivingAnd analog signal.
In an embodiment, described main website also comprises wireless Internet transmission system, the first cable tune thereinModulator-demodulator, network router, hub, server and IP incoming end, described wireless Internet passesThe signal output part of communication system is connected with the signal input part of the first cable modem, the first cable modulationThe signal output part of demodulator is connected with the secondary signal input of radiofrequency signal synthesizer, described the first cableModem is connected with one stage signal treating apparatus by network router, hub successively, described inServer is connected with one stage signal treating apparatus by hub.
In an embodiment, described second signal treating apparatus comprises the first distributor, downstream signal thereinModulator, upward signal modulator, the second distributor, intermediate frequency converter and the second cable modem,The signal output part that described main website connects antenna is connected with the signal input part of the first distributor, the first distributorFirst signal output be connected with the signal input part of downstream signal modulator, the letter of downstream signal modulatorNumber output is connected antenna first signal input with terminal use connects, and terminal use connects the of antennaOne signal output part is connected with the first signal input of upward signal modulator, the letter of upward signal modulatorNumber output is connected with the first signal input of the second distributor, the first signal output of the second distributorBe connected with main website antenna secondary signal input connect, the secondary signal output of described the first distributor withThe first signal input of intermediate frequency converter connects, the first signal output of intermediate frequency converter and the second cableThe signal input part of modem connects, the signal output part of the second cable modem and intermediate frequency conversionThe secondary signal input of device connects, second of the secondary signal output of intermediate frequency converter and the second distributorSignal input part connects.
In second signal treating apparatus, distributor distributes the intermediate-freuqncy signal receiving; Upward signal modulator and underRow signal modulator regulates the intermediate-freuqncy signal receiving; The intermediate-freuqncy signal that the conversion of intermediate frequency converter receives.
In an embodiment, described end user device also comprises IP phone, the letter of described IP phone thereinNumber input is connected with the signal output part of the 3rd cable modem.
The access of IP phone has increased a function of end user device.
For solving the problems of the technologies described above, the present invention also provides a kind of side of wireless ultra-wideband integration of three networks communicationMethod, comprises the following steps:
Receiving digital signals and analog signal, process the data signal and the analog signal that receive, after processingData signal and analog signal carry out that signal is synthetic is converted into intermediate-freuqncy signal transmitting;
Receiving intermediate frequency signal, processes the intermediate-freuqncy signal receiving, and launches intermediate-freuqncy signal after treatment;
Receive, filter intermediate-freuqncy signal, change signal frequency range, distribute signals.
In an embodiment, process the data signal and the analog signal step that receive specific as follows therein:
Data signal and analog signal that decoding receives;
Data signal and analog signal that establishment, conversion receive;
Modulation, stable data signal and the analog signal receiving.
In an embodiment, process the intermediate-freuqncy signal step receiving specific as follows therein:
Distribute the intermediate-freuqncy signal receiving;
The intermediate-freuqncy signal that adjusting receives;
The intermediate-freuqncy signal that conversion receives.
The invention has the beneficial effects as follows:
(1) it is current unique feasible wireless ultra wideband communications technology: use " aerial optical cable " FTTA withoutLine Ultra-wideband Communication Technology, in ensureing that user is to ultra wide bandwidth demand, receiving terminal only needs a diameterThe small size antenna of 35-50cm, therefore " aerial optical cable " FTTA wireless ultra wideband communications technology is unique at presentPossess technical feasibility and the new generation of wireless communication technology that can industrialization.
(2) it can realize the remote all standing of point-to-multipoint: the succeeding in developing of breakthrough high-power transmitter,Make the direct area coverage of point-to-multipoint can reach 50 kilometers of radiuses, if by relay transmission and amplification, itsArea coverage can infinitely expand in theory.
(3) it has significant financial cost advantage: project investment cost is low, is about wired Fiber to the home instituteNeed 1/20 of construction cost, maintain an equal level with existing MMDS wireless transmission method cost; Difficulty of construction is low, when constructionBetween short, without excavation and lay, do not produce soil and property rights dispute, social influence is extremely slight.
(4) it has energy-conserving and environment-protective advantage: cover equally the area of 50 kilometers of radiuses, use " aerial lightCable " energy consumption of FTTA wireless ultra wideband communications technology is only 500-600 watt, and traditional UHF band emission,At least need 8000-10000 watt, many reached at 30000-40000 watt, energy consumption saving exceedes 90%.
Brief description of the drawings
Fig. 1 is structured flowchart described in the embodiment of the present invention;
Fig. 2 is FB(flow block) described in the embodiment of the present invention;
Description of reference numerals:
10, main website; 101, one stage signal receiving system; 102, one stage signal treating apparatus; 103, radio frequencySignal synthesizer; 104, intermediate frequency controller; 105, wireless Internet transmission system; 106, the first cable is adjustedModulator-demodulator; 107, network router; 108, hub; 109, server; 110, IP accessEnd; 1021, demodulator; 1022, multiplexer; 1023, encoder; 1024, modulator;
20, base station; 201, main website connects antenna; 202, second signal treating apparatus; 203, terminal useConnect antenna; 2021, the first distributor; 2022, downstream signal modulator; 2023, upward signal modulationDevice; 2024, the second distributor; 2025, intermediate frequency converter; 2026, the second cable modem;
30, end user device; 301, exterior aerial; 302, the 3rd cable modem; 303, machineTop box; 304, IP phone.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated.
Embodiment:
As shown in Figure 1, a kind of wireless ultra-wideband integration of three networks communication system, comprises main website 10, base station 20 andEnd user device 30, described main website 10 comprises one stage signal receiving system 101, one stage signal treating apparatus102, radiofrequency signal synthesizer 103, intermediate frequency controller 104, the letter of described one stage signal receiving system 101Number output is connected with the signal input part of described one stage signal treating apparatus 102, described one stage signal processingThe signal output part of device 102 is connected with the first signal input of described radiofrequency signal synthesizer 103, instituteThe signal output part of stating radiofrequency signal synthesizer 103 is connected with the signal input part of described intermediate frequency controller 104;
Described base station 20 comprises that main website connects antenna 201, second signal treating apparatus 202 and terminal use and connectsConnect antenna 203, described main website connects the first signal input of antenna 201 and the signal of intermediate frequency controller 104Output connects, and described main website connects signal output part and the described second signal treating apparatus 202 of antenna 201Signal input part connect, the signal output part of described second signal treating apparatus 202 and described terminal useThe signal input part that connects antenna 203 connects;
Described end user device 30 comprises exterior aerial 301, Set Top Box 303 and the 3rd cable modemDevice 302, the signal input part of described exterior aerial 301 is connected antenna 203 with the terminal use of described base station 20Secondary signal output connect, the first signal of described exterior aerial 301 go out end and secondary signal output divideBe not connected with the signal input part of Set Top Box 303 and the 3rd cable modem 302.
In the present embodiment, described one stage signal treating apparatus 102 comprise demodulator 1021, multiplexer 1022,Encoder 1023 and modulator 1024, the signal input part of described demodulator 1021 and described one stage signal connectThe signal output part of receiving apparatus 101 connects, the signal output part of described demodulator 1021 and described multiplexer1022 signal input part connects, the signal output part of described multiplexer 1022 and described encoder 1023Signal input part connects, and the signal of the signal output part of described encoder 1023 and described modulator 1024 is defeatedEnter end and connect, the first letter of the signal output part of described modulator 1024 and described radiofrequency signal synthesizer 103Number input connects.
In the present embodiment, described main website 10 also comprises wireless Internet transmission system 105, the first cable modulationDemodulator 106, network router 107, hub 108, server 109 and IP incoming end 110,The signal of the signal output part of described wireless Internet transmission system 105 and the first cable modem 106Input connects, the signal output part of the first cable modem 106 and radiofrequency signal synthesizer 103Secondary signal input connect, described the first cable modem 106 successively by network router 107,Hub 108 is connected with one stage signal treating apparatus 102, and described server 109 is by network line concentrationDevice 108 is connected with one stage signal treating apparatus 102.
In the present embodiment, described second signal treating apparatus 202 comprises the first distributor 2021, downstream signalModulator 2022, upward signal modulator 2023, the second distributor 2024, intermediate frequency converter 2025 andTwo cable modems 2026, described main website connects signal output part and first distributor of antenna 2012021 signal input part connects, the first signal output of the first distributor 2021 and downstream signal modulator2022 signal input part connects, and the signal output part of downstream signal modulator 2022 is connected sky with terminal useThe first signal input of line 203 connects, and terminal use connects the first signal output of antenna 203 and upperThe first signal input of row signal modulator 2023 connects, the signal output of upward signal modulator 2023End is connected with the first signal input of the second distributor 2024, and the first signal of the second distributor 2024 is defeatedThe secondary signal input that goes out to hold to be connected with main website antenna 201 connects, second of described the first distributor 2021Signal output part is connected with the first signal input of intermediate frequency converter 2025, of intermediate frequency converter 2025One signal output part is connected with the signal input part of the second cable modem 2026, the second cable modulatedemodulateAdjust the signal output part of device 2026 and the secondary signal input of intermediate frequency converter 2025 to be connected, intermediate frequency conversionThe secondary signal output of device 2025 is connected with the secondary signal input of the second distributor 2024.
In the present embodiment, described end user device 30 also comprises IP phone 304, described IP phone 304Signal input part be connected with the signal output part of the 3rd cable modem 302.
In end user device 30, also comprised bidirectional data transceiver, it is mainly used in from main website 10The downstream signal of 10-12G carry out lower change, also user's upstream request signal is transmitted into main website 10 simultaneously,Key link, the key equipment that forms two-way communication.
As Fig. 2, for solving the problems of the technologies described above, the invention allows for a kind of wireless ultra-wideband integration of three networks logicalThe method of letter, comprises the following steps:
Step S101, receiving digital signals and analog signal, process the data signal and the analog signal that receive,Data signal after treatment and analog signal are carried out to signal is synthetic is converted into intermediate-freuqncy signal transmitting;
Step S102, receiving intermediate frequency signal, processes the intermediate-freuqncy signal receiving, and launches intermediate frequency letter after treatmentNumber; Wherein, processing receives data signal and analog signal step are specific as follows:
Data signal and analog signal that decoding receives;
Data signal and analog signal that establishment, conversion receive;
Modulation, stable data signal and the analog signal receiving;
Step S103, receives, filters intermediate-freuqncy signal, changes signal frequency range, distribute signals; Wherein, processThe intermediate-freuqncy signal step receiving is specific as follows:
Distribute the intermediate-freuqncy signal receiving;
The intermediate-freuqncy signal that adjusting receives;
The intermediate-freuqncy signal that conversion receives.
It is current unique feasible wireless ultra wideband communications technology for native system: use " aerial optical cable " FTTAWireless ultra wideband communications technology, in ensureing that user is to ultra wide bandwidth demand, receiving terminal only needs one directlyThe small size antenna of footpath 35-50cm, therefore " aerial optical cable " FTTA wireless ultra wideband communications technology is at present onlyOne possesses technical feasibility and the new generation of wireless communication technology that can industrialization.
It can realize the remote all standing of point-to-multipoint: succeeding in developing of breakthrough high-power transmitter, makesThe direct area coverage that obtains point-to-multipoint can reach 50 kilometers of radiuses, if by relay transmission and amplification, it coversCapping is long-pending can infinitely be expanded in theory.
It has significant financial cost advantage: project investment cost is low, is about wired Fiber to the home required buildingBe set as this 1/20, maintain an equal level with existing MMDS wireless transmission method cost; Difficulty of construction is low, and the engineering time is short,Without excavation and laying, do not produce soil and property rights dispute, social influence is extremely slight.
It has energy-conserving and environment-protective advantage: cover equally the area of 50 kilometers of radiuses, use " aerial optical cable " FTTAThe energy consumption of wireless ultra wideband communications technology is only 500-600 watt, and traditional UHF band emission at least needsWant 8000-10000 watt, many reached at 30000-40000 watt, energy consumption saving exceedes 90%.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, butCan not therefore be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that for this areaThose of ordinary skill, without departing from the inventive concept of the premise, can also make some distortion and changeEnter, these all belong to protection scope of the present invention.