CN102231885A - Multifunctional micro-power indoor distributed system - Google Patents
Multifunctional micro-power indoor distributed system Download PDFInfo
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- CN102231885A CN102231885A CN2011101587423A CN201110158742A CN102231885A CN 102231885 A CN102231885 A CN 102231885A CN 2011101587423 A CN2011101587423 A CN 2011101587423A CN 201110158742 A CN201110158742 A CN 201110158742A CN 102231885 A CN102231885 A CN 102231885A
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Abstract
The invention provides a multifunctional micro-power indoor distributed system. The system comprises a master unit, an extension unit and a remote unit which are sequentially connected. The master unit comprises a filter or duplexer, a modem, a first power supply unit, a monitoring unit, a first switch and a master unit digiboard, wherein the master unit digiboard is connected to an extension unit digiboard, and is a circuit board used for network data and radio frequency signal data processing. The extension unit comprises a second power supply unit, a second switch and the extension unit digiboard, wherein the extension unit digiboard is connected to the remote unit, and is the circuit board used for the network data and radio frequency signal data processing. The remote unit is the circuit board used for processing network data and radio frequency signal data and providing network interface and power functions for a powered device (PD). The system simultaneously has the multifunction of signal coverage, property coordinated construction reduction, noise reduction, network transparent transmission and the like.
Description
[technical field]
The present invention relates to the field of a kind of repeater and the Internet, be meant a kind of field that is used for mobile phone signal and the Internet indoor wireless compartment system especially.
[background technology]
China Mobile has set up the network of multiple communication standard at present, the mobile communications network and the broadband network that comprise different systems such as GSM900, DCS1800, TD-SCDMA, WLAN, serious, the constructional difficulties of many net construction overlapping investment, unification solves the difficult problem that the indoor covering problem of multiple network ShareBuilder thing becomes networking person.
The routing issue of large-scale wireless shrouding system is more and more outstanding simultaneously, and the integrated construction of broadband network and wireless network is the inexorable trend of future development.Present large-scale wireless shrouding system following several big problem arranged: the feeder line cost is too high, and the owner coordinates difficulty, the network interferences that the carrier frequency scheduling of burst service, amplifier bring, the trend day by day of energy-saving and emission-reduction.
Adopted the method that is transmission medium with the coaxial cable, directly amplifies to solve the indoor signal covering problem in addition in a large number with the base station radio-frequency signal, this type of solution is in order to realize building, especially the indoor covering of large stadium and universities and colleges, signal source is made in the powerful base station of general employing, use of the loss of trunk amplifier compensating coaxial cable to radiofrequency signal, the noise that makes is introduced serious, especially the noise of upward signal.The introducing of uplink signal noise will directly influence the receiving sensitivity and the coverage of base station, reduce the user capacity of system; Simultaneously, to lay problem such as constructional difficulties very outstanding for a large amount of coaxial cables.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of multi-functional micropower indoor distributed system, and it can have simultaneously, and signal covers, the minimizing property is coordinated construction, it is multi-functional to reduce noise, network transparent transmission etc.
The present invention is achieved in that
A kind of multi-functional micropower indoor distributed system of the present invention, it comprises master unit, expanding element, far-end unit, and wherein said master unit is connected in expanding element, and described expanding element is connected in far-end unit,
Described master unit comprises: filter or duplexer, modulator-demodulator, first power supply unit, monitoring unit, first switch, the master unit digiboard, described filter or duplexer are connected respectively to modulator-demodulator, the master unit digiboard, described modulator-demodulator is connected respectively to first power supply unit and master unit digiboard, described first power supply unit is connected respectively to monitoring unit, first switch, described first switch is connected to the master unit digiboard, the master unit digiboard is connected to the expanding element digiboard, and described master unit digiboard is for being used to carry out network data, the circuit board of radiofrequency signal data processing;
Described expanding element comprises: second power supply unit, second switch, expanding element digiboard, described second power supply unit is connected respectively to expanding element digiboard, second switch, described second switch is connected to the expanding element digiboard, described expanding element digiboard is also connected to far-end unit, and described expanding element digiboard is the circuit board that is used to carry out network data, radiofrequency signal data processing;
Described far-end unit is for being used to carry out network data, radiofrequency signal data processing, the circuit board of network interface and power supply function being provided for PD.
Further, described master unit digiboard is the TD-SCDMA standard, be provided with: a relay, an AD conversion chip, a DA conversion chip, one first fpga chip, a plurality of first optical modules, a plurality of RJ45 exchange mouths, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer is connected to local oscillator chip and relay respectively, the local oscillator chip is connected to monitoring chip, downstream mixer is connected to first fpga chip by the AD conversion chip, upstream mixer is connected to first fpga chip by the DA conversion chip, described RJ45 external tapping, a plurality of first optical modules and RJ45 exchange mouth all are connected to first fpga chip;
Described far-end unit is the TD-SCDMA standard accordingly, described far-end unit is provided with: one the 3rd fpga chip, at least two the 2nd RJ45 transmission mouths, a DA conversion chip, an AD conversion chip, a dielectric filter, a upstream mixer, a downstream mixer, a local oscillator chip, a monitoring chip, a relay, described dielectric filter is connected to a relay, described relay is connected respectively to upstream mixer, downstream mixer, described upstream mixer is connected to the 3rd fpga chip by the AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by the DA conversion chip, described monitoring chip, upstream mixer, downstream mixer all is connected to the local oscillator chip, and described the 2nd RJ45 transmission mouth all is connected to the 3rd fpga chip.
Further, described master unit digiboard is non-TD-SCDMA standard, be provided with: an AD conversion chip, a DA conversion chip, one first fpga chip, a plurality of first optical modules, a plurality of RJ45 exchange mouths, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer all is connected to the local oscillator chip, the local oscillator chip is connected to monitoring chip, downstream mixer is connected to first fpga chip by the AD conversion chip, upstream mixer is connected to first fpga chip by the DA conversion chip, described RJ45 external tapping, a plurality of first optical modules and RJ45 exchange mouth all are connected to first fpga chip;
Described far-end unit is corresponding non-TD-SCDMA standard, described far-end unit is provided with: one the 3rd fpga chip, at least two the 2nd RJ45 transmission mouths, a DA conversion chip, an AD conversion chip, a dielectric duplexer, a upstream mixer, a downstream mixer, a local oscillator chip, a monitoring chip, described dielectric duplexer is connected respectively to upstream mixer, downstream mixer, described upstream mixer is connected to the 3rd fpga chip by the AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by the DA conversion chip, described monitoring chip, upstream mixer, downstream mixer all is connected to the local oscillator chip, and described the 2nd RJ45 transmission mouth all is connected to the 3rd fpga chip.
Further, described expanding element digiboard is provided with: a plurality of second optical modules, second fpga chip, a plurality of the 2nd RJ45 exchange mouth, a plurality of RJ45 transmission mouths, described second optical module, the 2nd RJ45 exchange mouth, and RJ45 transmission mouth all is connected to second fpga chip.
Further, described master unit, expanding element, far-end unit can form star-like and hybrid combining mode chain, and networking mode reaches 1: 16: 128.
The present invention has following advantage:
The present invention has the signal covering function, by changing the model of chip device, can support any one network formats such as GSM, DCS, TD-SCDMA, WCDMA, CDMA;
The present invention have 10 100M self adaptation Ethernet topological functions;
The present invention can realize chain and star-like combination, finally realizes 1: 16: 128 (1 master unit, 16 expanding elements, 128 far-end units) networking mode;
About 100 meters of gigabit transmission ranges between points of the present invention (expanding element is to far-end unit);
Signal of the present invention covers miscellaneous function: noise is transplanted and the monitoring transmission channel, and provides PSE function for PD (receiving end equipment) equipment (as radio reception device).
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the construction module schematic diagram of system of the present invention.
Fig. 2 is the module diagram of TD-SCDMA standard for master unit of the present invention.
Fig. 3 is the module diagram of non-TD-SCDMA standard for master unit of the present invention.
Fig. 4 is the module diagram of expanding element of the present invention.
Fig. 5 is the module diagram of TD-SCDMA standard for far-end unit of the present invention.
Fig. 6 is the module diagram of non-TD-SCDMA standard for far-end unit of the present invention.
[embodiment]
See also Fig. 1 to shown in Figure 6, embodiments of the invention are described in detail.
As Fig. 1, a kind of multi-functional micropower indoor distributed system, it comprises master unit, expanding element, the far-end unit that connects successively, and wherein master unit links to each other with expanding element by optical fiber, and expanding element links to each other with far-end unit by category-5 cable.Native system is a kind of system of supporting signal covering function and network data transparent transmission function simultaneously.
As Fig. 2, Fig. 3, described master unit comprises: filter or duplexer, modulator-demodulator, first power supply unit, monitoring unit, first switch, the master unit digiboard, described filter or duplexer are connected respectively to modulator-demodulator, the master unit digiboard, described modulator-demodulator is connected respectively to first power supply unit and master unit digiboard, described first power supply unit is connected respectively to monitoring unit, first switch, described first switch is connected to the master unit digiboard, the master unit digiboard is connected to the expanding element digiboard by optical fiber, and described master unit digiboard is for being used to carry out network data, the circuit board of radiofrequency signal data processing.
If described master unit digiboard TD-SCDMA standard, be provided with: an AD conversion chip, a DA conversion chip, a relay, one first fpga chip, four first optical modules, five the one RJ45 exchange mouths, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer is connected to local oscillator chip and relay respectively, the local oscillator chip is connected to monitoring chip, downstream mixer is connected to first fpga chip by the AD conversion chip, upstream mixer is connected to first fpga chip by the DA conversion chip, described RJ45 external tapping, first optical module and RJ45 exchange mouth all are connected to first fpga chip.
If not described master unit digiboard TD-SCDMA standard, be provided with: an AD conversion chip, a DA conversion chip, one first fpga chip, four first optical modules, five the one RJ45 exchange mouths, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer all is connected to the local oscillator chip, the local oscillator chip is connected to monitoring chip, downstream mixer is connected to first fpga chip by the AD conversion chip, upstream mixer is connected to first fpga chip by the DA conversion chip, described RJ45 external tapping, first optical module and RJ45 exchange mouth all are connected to first fpga chip.
System is the TD-SCDMA standard, the filter IN port of described master unit links to each other with the base station, filter out port is connected to the rf inputs RF-IN of master unit digiboard, the coupling aperture of filter is connected to the rf inputs RF of modulator-demodulator, and the synchronous output end TRIG of modulator-demodulator is connected to the synchronous input end TRIG of master unit digiboard; Monitoring unit links to each other with modulator-demodulator, master unit digiboard respectively, and power supply unit is modulator-demodulator, monitoring unit, switch, the power supply of master unit digiboard.
System is other non-TD-SCDMA standards, and the duplexer IN port of described master unit links to each other with the base station, and the TX port is connected to the radio-frequency head TX of master unit digiboard, and the RX port of duplexer is connected to the radio-frequency head RX of master unit digiboard.Monitoring unit links to each other with modulator-demodulator, master unit digiboard respectively, and power supply unit is modulator-demodulator, monitoring unit, switch, the power supply of master unit digiboard.
As Fig. 4, described expanding element comprises: second power supply unit, second switch, expanding element digiboard, described second power supply unit is connected respectively to expanding element digiboard, second switch, described second switch is connected to the expanding element digiboard, described expanding element digiboard also is connected to far-end unit by category-5 cable, and described expanding element digiboard is the circuit board that is used to carry out network data, radiofrequency signal data processing.Described expanding element digiboard is provided with: a plurality of second optical modules, second fpga chip, a plurality of the 2nd RJ45 exchange mouth, a plurality of RJ45 transmission mouths, described second optical module, the 2nd RJ45 exchange mouth, and RJ45 transmission mouth all is connected to second fpga chip.
As Fig. 5, described far-end unit is for being used to carry out network data, radiofrequency signal data processing, the circuit board of network interface and power supply function being provided for PD.Described far-end unit is provided with: one the 3rd fpga chip, at least two the 2nd RJ45 transmission mouthful, DA conversion chip, AD conversion chip, relay, dielectric filter or dielectric duplexer, a upstream mixer, a downstream mixer, a local oscillator chip, a monitoring chip.
System is the TD-SCDMA standard, then the master unit digiboard is the TD-SCDMA standard, far-end unit is the TD-SCDMA standard, described dielectric filter is connected to relay, described relay is connected respectively to upstream mixer, downstream mixer, described upstream mixer is connected to the 3rd fpga chip by the AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by the DA conversion chip, described monitoring chip, upstream mixer, downstream mixer all are connected to the local oscillator chip, and described the 2nd RJ45 transmission mouth all is connected to the 3rd fpga chip;
System is non-TD-SCDMA standard, then the master unit digiboard is non-TD-SCDMA standard, as Fig. 6, far-end unit is non-TD-SCDMA standard, described dielectric duplexer is connected respectively to upstream mixer, downstream mixer, described upstream mixer is connected to the 3rd fpga chip by the AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by the DA conversion chip, described monitoring chip, upstream mixer, downstream mixer all are connected to the local oscillator chip, and described the 2nd RJ45 transmission mouth all is connected to the 3rd fpga chip.
System of the present invention radio frequency operation principle:
Downlink working principle: the BS of master unit (donor antenna) end is held as the alms giver, received signal, by filter or duplexer trap signal, fade to low frequency through the downstream mixer mixing, be input to first fpga chip through the AD converter digital quantization again and be converted to the DRSI protocol data, data flow is converted to optical signal transmission through first optical module, second optical module of expanding element receives this light signal, be reduced to the DRSI data flow, unpack through the 2nd FPGA, network data flow with the TCP/IP transparent transmission together is packaged as eight road DRSI data flow again, 48V voltage is respectively from eight the one RJ45 transmission mouthful transmissions in the feedback, 48V voltage and DRSI data flow transfer to the 2nd RJ45 transmission mouth 1 of far-end unit on category-5 cable, sending into the 3rd FPGA unpacks, be reduced to analog if signal by the DA conversion chip again, intermediate-freuqncy signal emission covering again after mixing becomes the signal of working frequency range again.
Up operation principle: the MS termination of far-end unit is received client signal, by dielectric filter (or duplexer) trap signal, after mixing is converted to the low frequency medium frequency signal, be converted to the DRSI agreement through AD conversion chip digital quantization to the three fpga chips, upload through the 2nd RJ45 transmission mouth 1, the one RJ45 transmission of expanding element mouthful reception data, transfer optical signal transmission to master unit through second optical module again through the second fpga chip treatment conversion, the first optical module receiving optical signals of master unit is converted to digital signal after first fpga chip is reduced to the low frequency medium frequency signal through the simulation of DA conversion chip after handling again is reduced to working frequency range through mixing again and is uploaded to the base station end by filter (or duplexer).
The grid operation principle:
User's receiving terminal:
The public network network inserts through the RJ45 of master unit digiboard external tapping, and through the effect of first switch, the data flow that inserts by the RJ45 external tapping is broadcast to each RJ45 exchange mouth respectively through switch.Each described first exchange mouth is handled by first fpga chip and is divided supplementary biography to first optical module data, transfers optical signal transmission to through first optical module.Second optical module of expanding element receives the corresponding data flow of master unit first optical module respectively, after the light number conversion, under the effect of second switch, each the 2nd RJ45 exchange mouth carries out data interchange, and the data that each the 2nd RJ45 exchange mouth receives are handled the rf digital signal, the 48V voltage that are coupled into through conversion by second fpga chip again and together are sent to far-end unit through category-5 cable.The 2nd RJ45 of far-end unit transmission mouthful 1 receives data, unpacks, and wherein network data flow is taken out unpack feedback again and go up 48V PSE voltage and send by the 2nd RJ45 transmission mouthfuls 2.The 2nd RJ45 transmission mouthfuls 2 carries the PSE function, can insert the equipment of band PD (receiving end equipment) function, as AP (radio reception device) etc.
The user uploads end:
The user is after inserting by the 2nd RJ45 transmission mouth 2 as receptions such as AP (radio reception device), be sent to expanding element by the packing of the 3rd fpga chip by the 2nd RJ45 transmission mouth 1, expanding element unpacks the back and sends by corresponding the 2nd RJ45 exchange mouth, gather through the second exchange data intercommunication again, and transfer optical signal transmission to master unit by second optical module, the first optical module receiving optical signals of master unit digiboard, be converted to digital signal, the network data flow that takes out is wherein handled by first fpga chip, by RJ45 exchange mouthful transmission, exchange after the RJ45 external tapping is uploaded through first exchange data more again.
The above, only for preferred embodiment of the present invention, so can not limit scope of the invention process according to this, i.e. the equivalence of doing according to claim of the present invention and description changes and modification, all should still belong in the scope that the present invention contains.
Claims (5)
1. multi-functional micropower indoor distributed system, it is characterized in that: it comprises master unit, expanding element, far-end unit, and wherein said master unit is connected in expanding element, and described expanding element is connected in far-end unit;
Described master unit comprises: filter or duplexer, modulator-demodulator, first power supply unit, monitoring unit, first switch, the master unit digiboard, described filter or duplexer are connected respectively to modulator-demodulator, the master unit digiboard, described modulator-demodulator is connected respectively to first power supply unit and master unit digiboard, described first power supply unit is connected respectively to monitoring unit, first switch, described first switch is connected to the master unit digiboard, the master unit digiboard is connected to the expanding element digiboard, and described master unit digiboard is for being used to carry out network data, the circuit board of radiofrequency signal data processing;
Described expanding element comprises: second power supply unit, second switch, expanding element digiboard, described second power supply unit is connected respectively to expanding element digiboard, second switch, described second switch is connected to the expanding element digiboard, described expanding element digiboard is also connected to far-end unit, and described expanding element digiboard is the circuit board that is used to carry out network data, radiofrequency signal data processing;
Described far-end unit is for being used to carry out network data, radiofrequency signal data processing, the circuit board of network interface and power supply function being provided for PD.
2. a kind of multi-functional micropower indoor distributed system according to claim 1, it is characterized in that: described master unit digiboard is the TD-SCDMA standard, be provided with: a relay, an AD conversion chip, a DA conversion chip, one first fpga chip, a plurality of first optical modules, a plurality of RJ45 exchange mouths, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer is connected to local oscillator chip and relay respectively, the local oscillator chip is connected to monitoring chip, downstream mixer is connected to first fpga chip by the AD conversion chip, upstream mixer is connected to first fpga chip by the DA conversion chip, described RJ45 external tapping, a plurality of first optical modules and RJ45 exchange mouth all are connected to first fpga chip;
Described far-end unit is the TD-SCDMA standard accordingly, described far-end unit is provided with: one the 3rd fpga chip, at least two the 2nd RJ45 transmission mouths, a DA conversion chip, an AD conversion chip, a dielectric filter, a upstream mixer, a downstream mixer, a local oscillator chip, a monitoring chip, a relay, described dielectric filter is connected to a relay, described relay is connected respectively to upstream mixer, downstream mixer, described upstream mixer is connected to the 3rd fpga chip by the AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by the DA conversion chip, described monitoring chip, upstream mixer, downstream mixer all is connected to the local oscillator chip, and described the 2nd RJ45 transmission mouth all is connected to the 3rd fpga chip.
3. a kind of multi-functional micropower indoor distributed system according to claim 1, it is characterized in that: described master unit digiboard is non-TD-SCDMA standard, be provided with: an AD conversion chip, a DA conversion chip, one first fpga chip, a plurality of first optical modules, a plurality of RJ45 exchange mouths, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer all is connected to the local oscillator chip, the local oscillator chip is connected to monitoring chip, downstream mixer is connected to first fpga chip by the AD conversion chip, upstream mixer is connected to first fpga chip by the DA conversion chip, described RJ45 external tapping, a plurality of first optical modules and RJ45 exchange mouth all are connected to first fpga chip;
Described far-end unit is corresponding non-TD-SCDMA standard, described far-end unit is provided with: one the 3rd fpga chip, at least two the 2nd RJ45 transmission mouths, a DA conversion chip, an AD conversion chip, a dielectric duplexer, a upstream mixer, a downstream mixer, a local oscillator chip, a monitoring chip, described dielectric duplexer is connected respectively to upstream mixer, downstream mixer, described upstream mixer is connected to the 3rd fpga chip by the AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by the DA conversion chip, described monitoring chip, upstream mixer, downstream mixer all is connected to the local oscillator chip, and described the 2nd RJ45 transmission mouth all is connected to the 3rd fpga chip.
4. a kind of multi-functional micropower indoor distributed system according to claim 1, it is characterized in that: described expanding element digiboard is provided with: a plurality of second optical modules, second fpga chip, a plurality of the 2nd RJ45 exchange mouth, a plurality of RJ45 transmission mouths, described second optical module, the 2nd RJ45 exchange mouth, and RJ45 transmission mouth all is connected to second fpga chip.
5. a kind of multi-functional micropower indoor distributed system according to claim 1 is characterized in that: described master unit, expanding element, far-end unit can form star-like and hybrid combining mode chain, and networking mode reaches 1: 16: 128.
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| CN201110158742.3A CN102231885B (en) | 2011-06-13 | 2011-06-13 | Multifunctional micro-power indoor distributed system |
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| CN104602252A (en) * | 2013-11-01 | 2015-05-06 | 南京亚瑟电子科技有限公司 | Design of digital optical fiber indoor distribution system simultaneously supporting four systems |
| CN104980207A (en) * | 2014-04-02 | 2015-10-14 | 常州隽通电子技术有限公司 | Expansion unit |
| CN106255140A (en) * | 2016-08-29 | 2016-12-21 | 京信通信技术(广州)有限公司 | A kind of novel base station extended pattern monitoring system and monitoring method thereof |
| CN106533544A (en) * | 2016-12-15 | 2017-03-22 | 中国电子科技集团公司第四十研究所 | 5G communication high-speed transmission device and method based on local oscillator module |
| CN112929951A (en) * | 2021-01-25 | 2021-06-08 | 中国联合网络通信集团有限公司 | Energy-saving method and equipment |
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| CN103220193A (en) * | 2012-01-18 | 2013-07-24 | 京信通信系统（中国）有限公司 | Device and method of Ethernet access transmission of repeater |
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| CN104980207A (en) * | 2014-04-02 | 2015-10-14 | 常州隽通电子技术有限公司 | Expansion unit |
| CN106255140A (en) * | 2016-08-29 | 2016-12-21 | 京信通信技术(广州)有限公司 | A kind of novel base station extended pattern monitoring system and monitoring method thereof |
| CN106255140B (en) * | 2016-08-29 | 2019-11-15 | 京信通信系统（中国）有限公司 | A kind of novel base station extended pattern monitoring system and its monitoring method |
| CN106533544A (en) * | 2016-12-15 | 2017-03-22 | 中国电子科技集团公司第四十研究所 | 5G communication high-speed transmission device and method based on local oscillator module |
| CN106533544B (en) * | 2016-12-15 | 2019-06-18 | 中国电子科技集团公司第四十一研究所 | A kind of 5G communication high rate data transmission device and method based on local oscillator module |
| CN112929951A (en) * | 2021-01-25 | 2021-06-08 | 中国联合网络通信集团有限公司 | Energy-saving method and equipment |
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| CN102231885B (en) | 2014-07-02 |
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