CN206922762U - The steel tower light distribution system that full operator full signal is supported - Google Patents
The steel tower light distribution system that full operator full signal is supported Download PDFInfo
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- CN206922762U CN206922762U CN201720121140.3U CN201720121140U CN206922762U CN 206922762 U CN206922762 U CN 206922762U CN 201720121140 U CN201720121140 U CN 201720121140U CN 206922762 U CN206922762 U CN 206922762U
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- Prior art keywords
- signal
- full
- distribution system
- light distribution
- steel tower
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Abstract
The utility model provides the steel tower light distribution system that a kind of full operator full signal is supported, belongs to communication technical field.It solves the problems, such as that prior art is poor for applicability.The steel tower light distribution system that this full operator full signal is supported, including (Access Unit are referred to as access unit：AU) and extension unit (Remote Unit referred to as：RU).Wherein AU points are receiving portion and emitting portion, it is made up of AU receives links, AU transmitting chains, MCU control circuit, FSK communications, optical module, power module, combiner, power splitter, DUP, RU points are receiving portion and emitting portion, are made up of RU receives links, RU transmitting chains, MCU control circuit, FSK communications, optical module, power module, synchronization module, combiner, shunt, multiplexer.Wherein, steel tower light distribution system supports all standing in operator 2G, 3G and 4G rooms.The steel tower light distribution system suitability that this full operator full signal is supported is high.
Description
Technical field
The utility model belongs to moving communicating field, is related to the steel tower light distribution system that a kind of full operator full signal is supported
System.
Background technology
China there is currently a variety of channel radios such as GSM, CDMA2000, TD-SCDMA, WCDMA, TD-LTE, LTE FDD
Communication network standard, each wireless communication system be operated in respectively 800MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz,
On multiple public's wireless communication frequency bands such as 2300MHz.With development of new techniques, wireless network application environment will be more complicated, and one
Individual operator possesses multiple standards, more band frequencies, and the situation that area of coverage multisystem, Multi net voting, a full frequency band coexist also will be more
Come more.
The indoor distributed system of current operator (movement, UNICOM, telecommunications) is (hereinafter referred to as：DAS) independent centralized procurement, only support
Single operator, operation cost are high.In order to avoid the waste invested in networking, it is reasonable that operator 2G, 3G and 4G, which are shared,
Selection.So for steel tower, there is an urgent need to a kind of multimode multi-frequency section DAS, while the multiple frequency band signals of multiple types are realized
In-door covering, reduce repeated construction caused by various costs, both economical and efficient and can took into account environmental protection.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of full operator's full system type pictorial signal of support
Light distribution system, technical problem to be solved is that multisystem, Multi net voting, full frequency band coexist.
Technical scheme is used by the utility model：
The steel tower light distribution system that a kind of full operator full signal is supported, it is characterised in that including access unit Access
Unit is referred to as：AU and extension unit Remote Unit is referred to as：RU.Wherein AU points are receiving portion and emitting portion, are received by AU
Link, AU transmitting chains, MCU control circuit, FSK communications, optical module, power module, combiner, power splitter, DUP compositions, RU
It is divided into receiving portion and emitting portion, by RU receives links, RU transmitting chains, MCU control circuit, FSK communications, optical module, electricity
Source module, synchronization module, combiner, shunt, multiplexer composition.Wherein, steel tower light distribution system support operator 2G, 3G and
All standing in 4G rooms；
The AU, support operator 2G, 3G and 4G；Emitting portion, for being coupled into 2G, 3G of mobile, UNICOM and telecommunications
With 4G signals, analog optical signal output is converted the signal into；Receiving portion, for analog optical signal to be converted into radiofrequency signal simultaneously
Amplification output；
The RU, support operator 2G, 3G and 4G；Emitting portion, for analog optical signal to be converted into radiofrequency signal, put
Big output；Receiving portion, the signal of full operator's full signal for antenna to be received are amplified and converted to analog optical signal.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the AU receives links are by the upper of AU
Row signal amplifies.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the AU transmitting chains are by under AU
Row signal amplifies.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the RU receives links are by the upper of RU
Row signal amplifies.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the RU transmitting chains are by under RU
Row signal amplifies.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the MCU control circuit controls radio frequency
Link State and FSK communications.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, between the FSK communications AU and RU
Communication.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the optical module is by optical signal and radio frequency
Conversion between signal, realize that light pricker transmits data.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the power module realizes system power supply
And overvoltage protection.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the combiner is used for receives link
Or the radiofrequency signal combining of transmitting chain amplification.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, the shunt is used for receives link
Or the radiofrequency signal branch of transmitting chain amplification.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, described DUP realizes that AU up-downgoings are believed
Number duplex.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, described synchronization module is for RU's
TD-LTE signals are synchronous.
In the steel tower light distribution system that above-mentioned full operator's full signal is supported, described multiplexer realizes multiple signals
Combining and signal frequency-selecting.
Compared with prior art, the utility model has four principal characters：
1. simulate room light pricker compartment system
2. optical path compensation
3. support MIMO
4.FSK communicates
As can be seen that slave unit is technical, time delay is reduced；Slave unit application scenarios, full operator's full frequency band is supported, can
To realize 2G, 3G and 4G all standing, the waste in networking investment is avoided, complexity of arranging net is reduced, reduces into
This, improves networking flexibility.
Brief description of the drawings
Fig. 1 is the theory diagram for the steel tower light distribution system that this full operator's full signal is supported.
Fig. 2 is AU theory diagrams in the steel tower light distribution system that this full operator's full signal is supported.
Fig. 3 is RU theory diagrams in the steel tower light distribution system that this full operator's full signal is supported
Embodiment
As shown in figure 1, the steel tower light distribution system that this full operator full signal is supported, including access unit Access
Unit is referred to as：AU and extension unit Remote Unit is referred to as：RU.Wherein AU points are receiving portion and emitting portion, are received by AU
Link, AU transmitting chains, MCU control circuit, FSK communications, optical module, power module, combiner, power splitter, DUP compositions, RU
It is divided into receiving portion and emitting portion, by RU receives links, RU transmitting chains, MCU control circuit, FSK communications, optical module, electricity
Source module, synchronization module, combiner, shunt, multiplexer composition.Wherein, steel tower light distribution system support operator 2G, 3G and
All standing in 4G rooms.
The AU, support operator 2G, 3G and 4G；Emitting portion, for being coupled into 2G, 3G of mobile, UNICOM and telecommunications
With 4G signals, analog optical signal output is converted the signal into；Receiving portion, for analog optical signal to be converted into radiofrequency signal simultaneously
Amplification output.
The RU, support operator 2G, 3G and 4G；Emitting portion, for analog optical signal to be converted into radiofrequency signal, put
Big output；Receiving portion, the signal of full operator's full signal for antenna to be received are amplified and converted to analog optical signal.
The AU receives links amplify AU upward signal.
The AU transmitting chains amplify AU downstream signal.
The RU receives links amplify RU upward signal.
The RU transmitting chains amplify RU downstream signal.
The MCU control circuit control radio-frequency link state and FSK communications.
Communication between the FSK communications AU and RU.
Conversion between optical signal and radiofrequency signal is realized that light pricker transmits data by the optical module.
The power module realizes system power supply and overvoltage protection.
The combiner is used for the radiofrequency signal combining for amplifying receives link or transmitting chain.
The shunt is used for the radiofrequency signal branch for amplifying receives link or transmitting chain.
Described DUP realizes AU uplink and downlink signals duplex.
Described synchronization module is synchronous for RU TD-LTE signals.
Described multiplexer realizes the combining of multiple signals and the frequency-selecting of signal.
Specifically, the steel tower light distribution system that this full operator full signal is supported, the specific frequency range of support are shown in Table 1, bag
Include access unit referred to as：AU and extension unit are referred to as：RU two parts.Access unit is by the downlink radio frequency of the information sources such as 2G, 3G, LTE
Signal coupled into optical fibres compartment system, is combined after amplification, is reached after optical module opto-electronic conversion is optical signal by optical fiber
Expanding element or far-end unit.Meanwhile by far-end unit upload optical signal be converted into analog signal after reach information source.Distal end is single
The optical signal that member issues access unit changes into radiofrequency signal and amplified, and realizes the wireless coverage of the standards such as 2G, 3G, LTE；Simultaneously
The upstream radio-frequency signal of reception is changed into optical signal, reaches access unit, realizes the access and covering of specific cell working signal.
Table 1 simulates the band limits that DAS system is supported
AU theory diagrams are shown in accompanying drawing 2, the access unit of information source downlink radio-frequency signal coupled into optical fibres compartment system, through duplex
Device or circulator, amplified respectively by transmitting chain (TX1, TX2, TX3, TX4, TX5) and by their combinings, wherein TX1, TX2,
TX3, TX4, TX5 working frequency range be respectively 865-880MHz, 934-960MHz, 1805-1880MHz, 2110-2170MHz,
2320-2370MHz, the signal of combining are divided into four parts by power splitter again, and optical signal is converted thereof into by corresponding optical module,
RU inputs are transferred to by light pricker.Optical module of the optical signal through access unit that far-end unit uploads is converted into radiofrequency signal,
By the radiofrequency signal combining on most four tunnels, receives link (RX1, RX2, RX3, RX4, RX5) amplification and filter are assigned to through power splitter
Except out-of-band interference, information source is uploaded to, wherein RX1, RX2, RX3, RX4, RX5 working frequency range is 820-835MHz, 885- respectively
915MHz、1710-1785MHz、1920-1980MHz、2320-2370MHz。
RU theory diagrams are shown in accompanying drawing 3, are divided into Main and MIMO two parts, and Main and MIMO framework is identical, main area
It is not that Main supports full frequency band, MIMO only supports LTE, and frequency range is shown in Table 1.The optical signal that Main issues access unit is through optical mode
Block changes into radiofrequency signal, and radiofrequency signal is divided into four parts by power splitter, is amplified by transmitting chain (TX1, TX2, TX3, TX4)
And filtering, wherein TX1, TX2, TX3, TX4 working frequency range is 865MHz-960MHz, 1805-1880MHz, 2110- respectively
2170MHz, 2320-2370MHz, then exported by POI combinings, realize the wireless coverage of the standards such as 2G, 3G, LTE；Simultaneously will
The upstream radio-frequency signal that Main antennas receive is sent into receives link (RX1, RX2, RX3) through POI frequency-selectings, and mimo antenna is received
Upstream radio-frequency signal through POI frequency-selectings be sent into receives link RX4, wherein RX1, RX2, RX3, RX4 work you frequency range be respectively
820-915MHz, 1710-1785MHz, 1920-1980MHz, 2320-2370MHz, by combiner after receives link amplification filtering
Radiofrequency signal after combining is converted into optical signal by combining, optical module.Similarly, the optical signal that MIMO issues access unit is through light
Module changes into radiofrequency signal, and radiofrequency signal is divided into three parts by power splitter, is amplified by transmitting chain (TX2, TX3, TX4) and filtered
The working frequency range of ripple, wherein TX2, TX3, TX4 is 1805-1880MHz, 2110-2170MHz, 2320-2370MHz respectively, then
Exported by POI combinings, realize LTE MIMO wireless coverage；The upstream radio-frequency signal that mimo antenna receives is selected through POI simultaneously
Frequency be sent into receives link (RX1, RX2, RX3), wherein your frequency range of RX1, RX2, RX3 work be respectively 1710-1785MHz,
1920-1980MHz, 2320-2370MHz, by combiner combining after receives link amplification filtering, optical module is by the radio frequency after combining
Signal is converted into optical signal.
Access unit transmitting chain is made up of wave filter, variable gain amplifier, amplifier, and wave filter filters out band stray
Signal, MCU control the yield value of variable gain amplifier to control transmitting chain gain by I2C, amplifier operation in AB classes,
Biasing circuit is fixed, and realizes that fixed gain is amplified.
Access unit receives link is made up of wave filter, variable gain amplifier, amplifier, and wave filter filters out band stray
Signal, MCU control the yield value of variable gain amplifier to control transmitting chain gain by I2C, amplifier operation in AB classes,
Biasing circuit is fixed, and realizes that fixed gain is amplified.
Access unit duplexer has three ports：Public, reception, transmitting, are received and the frequency range of transmitting is different.
Access unit circulator：By the directionality of circulator, the isolation of reception signal and transmission signal is realized.
Access unit power splitter and synthesizer, combined by one-to-two power splitter, realize branch and the conjunction of radiofrequency signal
Road.
Access unit MCU, realize the control to optical module, radio frequency link and FSK；Radio frequency part, controlled and launched by I2C
The gain of link and receives link and power switch, the input power of transmitting chain is read by A/D；Optical module part, control light
The reiving/transmitting state of module, FSK parts, FSK is controlled, realize the data communication between AU and RU.
Access unit FSK, realize that FSK communicates, MCU, which is issued, needs the RU states inquired about to give FSK units, and FSK units are by number
Fsk signal is converted into optical signal by optical module, RU is passed to by light pricker by word signal modulation into fsk signal.
Access unit optical module, by the radiofrequency signal of transmitting chain and fsk signal be converted into optical signal realize optical signal to
The conversion of analog signal, the RU optical signals accessed are converted into radiofrequency signal or fsk signal.
Access unit power module, powered for AU.
Extension unit transmitting chain is made up of wave filter, variable gain amplifier, driving amplifier, power amplifier, filter
Ripple device filters out band stray signal, and MCU controls transmitting chain gain by the yield value of I2C control variable gain amplifiers,
Power amplifier is operated in B classes, and bias voltage size is controlled by MCU by D/A.
Extension unit receives link is made up of wave filter, variable gain amplifier, amplifier, and wave filter filters out band stray
Signal, MCU control the yield value of variable gain amplifier to control transmitting chain gain by I2C, amplifier operation in AB classes,
Biasing circuit is fixed, and realizes that fixed gain is amplified.
Extension unit power splitter and synthesizer, combined by one-to-two power splitter, realize branch and the conjunction of radiofrequency signal
Road.
Extension unit MCU, realize the control to optical module, radio frequency link and FSK；Radio frequency part, controlled and launched by I2C
Gain, RF switch and the power amplifier switch of link and receives link, the power output of transmitting chain is read by A/D；Optical mode block portion
Point, the reiving/transmitting state of optical module is controlled, FSK parts, controls FSK, realizes the data communication between AU and RU.
Extension unit FSK, realize that FSK communicates, MCU, which is uploaded, needs the RU states inquired about to give FSK units, and FSK units are by number
FSK signals are converted into optical signal by optical module, AU are passed to by light pricker by word signal modulation into fsk signal.
Extension unit optical module, by the radiofrequency signal of receives link or fsk signal be converted into optical signal realize optical signal to
The conversion of analog signal, the optical signal issued by AU is converted into radiofrequency signal or fsk signal.
Extension unit power module, powered for RU.
Extension unit synchronization module, the synchronization of TDD LTE signals on Main and MIMO.
Claims (10)
1. the steel tower light distribution system that a kind of full operator full signal is supported, it is characterised in that including access unit Access
Unit is referred to as：AU and extension unit Remote Unit is referred to as：RU, wherein AU points are receiving portion and emitting portion, are received by AU
Link, AU transmitting chains, MCU control circuit, FSK communications, optical module, power module, combiner, power splitter, DUP compositions, RU
It is divided into receiving portion and emitting portion, by RU receives links, RU transmitting chains, MCU control circuit, FSK communications, optical module, electricity
Source module, synchronization module, combiner, shunt, multiplexer composition, wherein, steel tower light distribution system support operator 2G, 3G and
All standing in 4G rooms；
The AU, support operator 2G, 3G and 4G；Emitting portion, for being coupled into 2G, 3G and 4G of mobile, UNICOM and telecommunications
Signal, convert the signal into analog optical signal output；Receiving portion, for analog optical signal to be converted into radiofrequency signal and amplified
Output；
The RU, support operator 2G, 3G and 4G；Emitting portion, for analog optical signal to be converted into radiofrequency signal, amplification is defeated
Go out；Receiving portion, the signal of full operator's full signal for antenna to be received are amplified and converted to analog optical signal.
2. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that the AU
Receives link amplifies AU upward signal.
3. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that the AU
Transmitting chain amplifies AU downstream signal.
4. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that the RU
Receives link amplifies RU upward signal.
5. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that the RU
Transmitting chain amplifies RU downstream signal.
6. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that described
MCU control circuit controls radio-frequency link state and FSK communications.
7. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that described
Communication between FSK communications AU and RU.
8. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that the light
Conversion between optical signal and radiofrequency signal is realized that light pricker transmits data by module.
9. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that the electricity
Source module realizes system power supply and overvoltage protection.
10. the steel tower light distribution system that full operator full signal according to claim 1 is supported, it is characterised in that described
Combiner is used for the radiofrequency signal combining for amplifying receives link or transmitting chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121140.3U CN206922762U (en) | 2017-02-09 | 2017-02-09 | The steel tower light distribution system that full operator full signal is supported |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121140.3U CN206922762U (en) | 2017-02-09 | 2017-02-09 | The steel tower light distribution system that full operator full signal is supported |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206922762U true CN206922762U (en) | 2018-01-23 |
Family
ID=61310294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720121140.3U Expired - Fee Related CN206922762U (en) | 2017-02-09 | 2017-02-09 | The steel tower light distribution system that full operator full signal is supported |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206922762U (en) |
-
2017
- 2017-02-09 CN CN201720121140.3U patent/CN206922762U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190315 Address after: Room A102, No. 569 Wensan Road, Xihu District, Hangzhou City, Zhejiang 310000 Co-patentee after: Hangzhou Networks Communications Co., Ltd. Patentee after: Hangzhou Yulong Technology Co. Ltd. Address before: 310000 Room 157, Building 20, Longtan Road, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU BAI LENI COMMUNICATION EQUIPMENT CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20200209 |