CN102231885B - Multifunctional micro-power indoor distributed system - Google Patents
Multifunctional micro-power indoor distributed system Download PDFInfo
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- CN102231885B CN102231885B CN201110158742.3A CN201110158742A CN102231885B CN 102231885 B CN102231885 B CN 102231885B CN 201110158742 A CN201110158742 A CN 201110158742A CN 102231885 B CN102231885 B CN 102231885B
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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, refer to especially a kind of field for mobile phone signal and the Internet indoor wireless compartment system.
[background technology]
China Mobile has set up the network of multiple communication standard at present, comprise mobile communications network and the broadband network of the different systems such as GSM900, DCS1800, TD-SCDMA, WLAN, many net construction overlapping investment are serious, constructional difficulties, and unification solves the indoor covering problem of multiple network ShareBuilder thing becomes networking person's a difficult problem.
The routing issue of large-scale wireless shrouding system is more and more outstanding simultaneously, and the My Perspective On The Co-building of broadband network and wireless network is the inexorable trend of future development.Current large-scale wireless shrouding system have following several large problem: feeder line cost is too high, and owner coordinates difficulty, the carrier frequency scheduling of burst service, the network interferences that amplifier brings, the trend day by day of energy-saving and emission-reduction.
The method having adopted in a large number in addition taking coaxial cable as transmission medium, directly amplify with base station radio-frequency signal solves indoor coverage of signal problem, 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 the loss of trunk amplifier compensating coaxial cable to radiofrequency signal, the noise making is introduced serious, the especially noise of upward signal.The introducing of uplink signal noise will directly affect receiving sensitivity and the coverage of base station, reduces the user capacity of system; Meanwhile, to lay the problems 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 Multifunctional micro-power indoor distributed system, and it can have simultaneously, and signal covers, 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 Multifunctional micro-power 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, the first power supply unit, monitoring unit, the first switch, master unit digiboard, described filter or duplexer are connected respectively to modulator-demodulator, master unit digiboard, described modulator-demodulator is connected respectively to the first power supply unit and master unit digiboard, described the first power supply unit is connected respectively to monitoring unit, the first switch, described the first switch is connected to master unit digiboard, master unit digiboard is connected to expanding element digiboard, described master unit digiboard is for carrying out network data, the circuit board of radiofrequency signal data processing,
Described expanding element comprises: the second power supply unit, the second switch, expanding element digiboard, described the second power supply unit is connected respectively to expanding element digiboard, the second switch, described the second switch is connected to expanding element digiboard, described expanding element digiboard is also connected to far-end unit, and described expanding element digiboard is the circuit board for carrying out network data, radiofrequency signal data processing;
Described far-end unit, for for carrying out network data, radiofrequency signal data processing, providing the circuit board of network interface and power supply function for PD.
Further, described master unit digiboard is TD-SCDMA standard, be provided with: a relay, an AD conversion chip, a DA conversion chip, first fpga chip, a plurality of the first optical modules, a plurality of RJ45 exchanges mouthful, 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, local oscillator chip is connected to monitoring chip, downstream mixer is connected to the first fpga chip by AD conversion chip, upstream mixer is connected to the first fpga chip by DA conversion chip, described RJ45 external tapping, a plurality of the first optical modules and RJ45 exchange mouth are all connected to the first fpga chip,
Described far-end unit is TD-SCDMA standard accordingly, on described far-end unit, be provided with: the 3rd fpga chip, at least two the 2nd RJ45 transmission mouthful, 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 AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by DA conversion chip, described monitoring chip, upstream mixer, downstream mixer is all connected to local oscillator chip, described the 2nd RJ45 transmission mouth is all 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, first fpga chip, a plurality of the first optical modules, a plurality of RJ45 exchanges mouthful, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer is all connected to local oscillator chip, local oscillator chip is connected to monitoring chip, downstream mixer is connected to the first fpga chip by AD conversion chip, upstream mixer is connected to the first fpga chip by DA conversion chip, described RJ45 external tapping, a plurality of the first optical modules and RJ45 exchange mouth are all connected to the first fpga chip,
Described far-end unit is corresponding non-TD-SCDMA standard, on described far-end unit, be provided with: the 3rd fpga chip, at least two the 2nd RJ45 transmission mouthful, 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 AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by DA conversion chip, described monitoring chip, upstream mixer, downstream mixer is all connected to local oscillator chip, described the 2nd RJ45 transmission mouth is all connected to the 3rd fpga chip.
Further, on described expanding element digiboard, be provided with: a plurality of the second optical modules, the second fpga chip, a plurality of the 2nd RJ45 exchange mouth, a plurality of RJ45 transmission mouthful, described the second optical module, the 2nd RJ45 exchange mouthful, a RJ45 transmission mouth is all connected to the 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.
Tool of the present invention has the following advantages:
The present invention has 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;
100 meters of left and right of gigabit transmission range 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 monitoring transmission channel, and provides PSE function for PD (receiving end equipment) equipment (as radio reception device).
[brief description of the 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 that master unit of the present invention is the module diagram of TD-SCDMA standard.
Fig. 3 is that master unit of the present invention is the module diagram of non-TD-SCDMA standard.
Fig. 4 is the module diagram of expanding element of the present invention.
Fig. 5 is that far-end unit of the present invention is the module diagram of TD-SCDMA standard.
Fig. 6 is that far-end unit of the present invention is the module diagram of non-TD-SCDMA standard.
[embodiment]
Refer to shown in Fig. 1 to Fig. 6, embodiments of the invention are described in detail.
As Fig. 1, a kind of Multifunctional micro-power indoor distributed system, it comprises the master unit, expanding element, the far-end unit that connect successively, and wherein master unit is connected with expanding element by optical fiber, and expanding element is connected 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, the first power supply unit, monitoring unit, the first switch, master unit digiboard, described filter or duplexer are connected respectively to modulator-demodulator, master unit digiboard, described modulator-demodulator is connected respectively to the first power supply unit and master unit digiboard, described the first power supply unit is connected respectively to monitoring unit, the first switch, described the first switch is connected to master unit digiboard, master unit digiboard is connected to expanding element digiboard by optical fiber, described master unit digiboard is for carrying 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, first fpga chip, four the first optical modules, five RJ45 exchanges mouthful, 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, local oscillator chip is connected to monitoring chip, downstream mixer is connected to the first fpga chip by AD conversion chip, upstream mixer is connected to the first fpga chip by DA conversion chip, described RJ45 external tapping, the first optical module and RJ45 exchange mouth are all connected to the first fpga chip.
If not described master unit digiboard TD-SCDMA standard, be provided with: an AD conversion chip, a DA conversion chip, first fpga chip, four the first optical modules, five RJ45 exchanges mouthful, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer is all connected to local oscillator chip, local oscillator chip is connected to monitoring chip, downstream mixer is connected to the first fpga chip by AD conversion chip, upstream mixer is connected to the first fpga chip by DA conversion chip, described RJ45 external tapping, the first optical module and RJ45 exchange mouth are all connected to the first fpga chip.
System is TD-SCDMA standard, the filter IN port of described master unit is connected with 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 is connected 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 is connected with base station, and 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 is connected 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: the second power supply unit, the second switch, expanding element digiboard, described the second power supply unit is connected respectively to expanding element digiboard, the second switch, described the second switch is connected to expanding element digiboard, described expanding element digiboard is also connected to far-end unit by category-5 cable, and described expanding element digiboard is the circuit board for carrying out network data, radiofrequency signal data processing.On described expanding element digiboard, be provided with: a plurality of the second optical modules, the second fpga chip, a plurality of the 2nd RJ45 exchange mouth, a plurality of RJ45 transmission mouthful, described the second optical module, the 2nd RJ45 exchange mouthful, a RJ45 transmission mouth is all connected to the second fpga chip.
As Fig. 5, described far-end unit, for for carrying out network data, radiofrequency signal data processing, providing the circuit board of network interface and power supply function for PD.On described far-end unit, be provided with: 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 TD-SCDMA standard, master unit digiboard is TD-SCDMA standard, far-end unit is 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 AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by DA conversion chip, described monitoring chip, upstream mixer, downstream mixer are all connected to local oscillator chip, and described the 2nd RJ45 transmission mouth is all connected to the 3rd fpga chip;
System is non-TD-SCDMA standard, 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 AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by DA conversion chip, described monitoring chip, upstream mixer, downstream mixer are all connected to local oscillator chip, and described the 2nd RJ45 transmission mouth is all connected to the 3rd fpga chip.
System radio frequency operation principle of the present invention:
Downlink working principle: BS (donor antenna) end of master unit is held as alms giver, receive signal, by filter or duplexer trap signal, fade to low frequency through downstream mixer mixing, be input to the first fpga chip through AD converter digital quantization again and be converted to DRSI protocol data, data flow is converted to optical signal transmission through the first optical module, the second optical module of expanding element receives this light signal, be reduced to DRSI data flow, unpack through the 2nd FPGA, again the network data flow of TCP/IP transparent transmission is together packaged as to eight road DRSI data flow, in feedback, 48V voltage sends from eight RJ45 transmission mouthful respectively, 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 DA conversion chip again, after the signal that intermediate-freuqncy signal becomes working frequency range through mixing again, transmitting covers 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 low frequency medium frequency signal, be converted to 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 mouthful of expanding element receives data, process conversion through the second fpga chip and transfer optical signal transmission to master unit through the second optical module again, the first optical module receiving optical signals of master unit is converted to after digital signal after the first fpga chip is processed and is reduced to low frequency medium frequency signal through the simulation of DA conversion chip and is reduced to working frequency range through mixing again and is uploaded to base station end by filter (or duplexer).
Grid operation principle:
User's receiving terminal:
Public network network is through the access of the RJ45 of master unit digiboard external tapping, and through the effect of the first switch, the data flow accessing by RJ45 external tapping is broadcast to respectively each RJ45 exchange mouthful through switch.Described in each, the first exchange mouthful is processed data is transmitted to respectively to the first optical module by the first fpga chip, transfers optical signal transmission to through the first optical module.The second optical module of expanding element receives respectively the corresponding data flow of master unit the first optical module, after light number conversion, under the effect of the second switch, each the 2nd RJ45 exchange mouth carries out data interchange, and the data that each the 2nd RJ45 exchange mouth receives are coupled into through rf digital signal, the 48V voltage of conversion and are together sent to far-end unit through category-5 cable by the second fpga chip processing again.The 2nd RJ45 transmission of far-end unit mouthful 1 receives data, unpacks, and network data flow is wherein taken out and unpacks the upper 48V PSE voltage of feedback again and send by the 2nd RJ45 transmission mouthfuls 2.The 2nd RJ45 transmission mouthfuls 2 carries PSE function, can access the equipment of band PD (receiving end equipment) function, as AP (radio reception device) etc.
User uploads end:
User is after receiving by the 2nd RJ45 transmission mouthful 2 accesses as AP (radio reception device) etc., be sent to expanding element by the 3rd fpga chip packing by the 2nd RJ45 transmission mouth 1, after unpacking, expanding element sends by the 2nd corresponding RJ45 exchange mouthful, gather through the second exchange data intercommunication again, and transfer optical signal transmission to master unit by the second optical module, the first optical module receiving optical signals of master unit digiboard, be converted to digital signal, the network data flow taking out wherein passes through the first fpga chip processing, send by a RJ45 exchange mouthful again, after exchanging, uploads through RJ45 external tapping the first exchange data again.
The above, only for preferred embodiment of the present invention, therefore can not limit according to this scope of the invention process, the equivalence of doing according to the scope of the claims of the present invention and description changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (2)
1. a Multifunctional micro-power indoor distributed system, 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: modulator-demodulator, the first power supply unit, monitoring unit, the first switch, master unit digiboard, described the first power supply unit is connected respectively to monitoring unit, the first switch, described the first switch is connected to master unit digiboard, master unit digiboard is connected to expanding element digiboard, and described master unit digiboard is the circuit board for carrying out network data, radiofrequency signal data processing; In the time that described master unit digiboard is TD-SCDMA standard, master unit also comprises: filter, described filter is connected respectively to described modulator-demodulator, described master unit digiboard, and described modulator-demodulator is connected respectively to described the first power supply unit and described master unit digiboard; In the time that described master unit digiboard is non-TD-SCDMA standard, described master unit also comprises: duplexer, and described duplexer is connected to described master unit digiboard, and described modulator-demodulator is connected to the first power supply unit;
Described expanding element comprises: the second power supply unit, the second switch, expanding element digiboard, described the second power supply unit is connected respectively to expanding element digiboard, the second switch, described the second switch is connected to expanding element digiboard, described expanding element digiboard is also connected to far-end unit, and described expanding element digiboard is the circuit board for carrying out network data, radiofrequency signal data processing;
Described far-end unit, for for carrying out network data, radiofrequency signal data processing, providing the circuit board of network interface and power supply function for PD;
Described master unit digiboard is TD-SCDMA standard, described far-end unit is TD-SCDMA standard accordingly, described master unit digiboard is provided with: a relay, an AD conversion chip, a DA conversion chip, first fpga chip, a plurality of the first optical modules, a plurality of RJ45 exchanges mouthful, 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, local oscillator chip is connected to monitoring chip, downstream mixer is connected to the first fpga chip by AD conversion chip, upstream mixer is connected to the first fpga chip by DA conversion chip, described RJ45 external tapping, a plurality of the first optical modules and RJ45 exchange mouth are all connected to the first fpga chip,
Described far-end unit is TD-SCDMA standard accordingly, on described far-end unit, be provided with: the 3rd fpga chip, at least two the 2nd RJ45 transmission mouthful, 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 described relay, described relay is connected respectively to upstream mixer, downstream mixer, described upstream mixer is connected to the 3rd fpga chip by AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by DA conversion chip, described monitoring chip, upstream mixer, downstream mixer is all connected to local oscillator chip, described the 2nd RJ45 transmission mouth is all connected to the 3rd fpga chip,
Or described master unit digiboard is non-TD-SCDMA standard, be provided with: an AD conversion chip, a DA conversion chip, first fpga chip, a plurality of the first optical modules, a plurality of RJ45 exchanges mouthful, a RJ45 external tapping, a monitoring chip, a downstream mixer, a upstream mixer, a local oscillator chip, described downstream mixer, upstream mixer is all connected to local oscillator chip, local oscillator chip is connected to monitoring chip, downstream mixer is connected to the first fpga chip by AD conversion chip, upstream mixer is connected to the first fpga chip by DA conversion chip, described RJ45 external tapping, a plurality of the first optical modules and RJ45 exchange mouth are all connected to the first fpga chip,
Described far-end unit is corresponding non-TD-SCDMA standard, on described far-end unit, be provided with: the 3rd fpga chip, at least two the 2nd RJ45 transmission mouthful, 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 AD conversion chip, described downstream mixer is connected to the 3rd fpga chip by DA conversion chip, described monitoring chip, upstream mixer, downstream mixer is all connected to local oscillator chip, described the 2nd RJ45 transmission mouth is all connected to the 3rd fpga chip,
On described expanding element digiboard, be provided with: a plurality of the second optical modules, the second fpga chip, a plurality of the 2nd RJ45 exchange mouth, a plurality of RJ45 transmission mouthful, described the second optical module, the 2nd RJ45 exchange mouthful, a RJ45 transmission mouth is all connected to the second fpga chip;
System radio frequency downlink working principle is: the base station end of master unit is as the collection of letters number of alms giver's termination, by filter or duplexer trap signal, fade to low frequency through downstream mixer mixing, be input to the first fpga chip through AD conversion chip digital quantization again and be converted to DRSI protocol data, above-mentioned DRSI protocol data is converted to optical signal transmission through the first optical module, the second optical module of expanding element receives this light signal, be reduced to DRSI data flow, unpack through the second fpga chip, again the network data flow of TCP/IP transparent transmission is together packaged as to plural road DRSI data flow, in feedback, 48V voltage sends from a plurality of RJ45 transmission mouthful respectively, 48V voltage and DRSI data stream transmitting are to one at least two the 2nd RJ45 transmission of far-end unit mouthful, sending into the 3rd fpga chip unpacks, be reduced to analog if signal by DA conversion chip again, after the signal that intermediate-freuqncy signal becomes working frequency range through mixing again, transmitting covers again,
The up operation principle of system radio frequency is: the MS termination of far-end unit is received subscriber signal, by dielectric filter or dielectric duplexer trap signal, after mixing is converted to low frequency medium frequency signal, be input to the 3rd fpga chip through AD conversion chip digital quantization and be converted to DRSI protocol data, upload for one in above-mentioned at least two the 2nd RJ45 transmission mouths, the one RJ45 transmission mouthful of expanding element receives data, process conversion through the second fpga chip and transfer optical signal transmission to master unit through the second optical module again, the first optical module receiving optical signals of master unit is reduced to low frequency medium frequency signal through the simulation of DA conversion chip again after being converted to digital signal after the first fpga chip is processed, be reduced to working frequency range through mixing again and be uploaded to base station end by filter or duplexer,
Grid operation principle is: user is during as receiving terminal: public network network accesses through the RJ45 of master unit digiboard external tapping, through the effect of the first switch, the data flow accessing by RJ45 external tapping is broadcast to respectively each RJ45 exchange mouthful through the first switch, described in each, a RJ45 exchange mouthful is processed data is transmitted to respectively to the first optical module by the first fpga chip, transfers optical signal transmission to through the first optical module, the second optical module of expanding element receives respectively the corresponding data flow of master unit the first optical module, after light number conversion, under the effect of the second switch, each the 2nd RJ45 exchange mouth carries out data interchange, and the data that each the 2nd RJ45 exchange mouth receives are coupled into through rf digital signal, the 48V voltage of conversion and are together sent to far-end unit through category-5 cable by the second fpga chip processing again, reception data in above-mentioned at least two the 2nd RJ45 transmission mouths of far-end unit, unpack, and network data flow taking-up is wherein unpacked to the upper 48VPSE voltage of feedback again and transmit another transmission in mouth by above-mentioned at least two the 2nd RJ45, when user is as uploading when end: user is after radio reception device is by another access in above-mentioned at least two the 2nd RJ45 transmission mouthful, by the 3rd fpga chip packing data, and be sent to expanding element by one in above-mentioned at least two the 2nd RJ45 transmission mouths, after unpacking, expanding element sends by the 2nd corresponding RJ45 exchange mouthful, carrying out data interchange through the second switch again gathers, and transfer optical signal transmission to master unit by the second optical module, the first optical module receiving optical signals of master unit digiboard, be converted to digital signal, the network data flow taking out wherein passes through the first fpga chip processing, send by a RJ45 exchange mouthful again, after carrying out data interchange, uploads through RJ45 external tapping the first switch again.
2. a kind of Multifunctional micro-power indoor distributed system according to claim 1, is characterized in that: described master unit, expanding element, far-end unit form star-like and hybrid combining mode chain, and networking mode reaches 1:16:128.
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| CN104602252B (en) * | 2013-11-01 | 2018-09-28 | 南京典格通信科技有限公司 | A kind of design of digital fiber indoor distributed system that is while supporting four kinds of standards |
| CN104980207A (en) * | 2014-04-02 | 2015-10-14 | 常州隽通电子技术有限公司 | Expansion unit |
| 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 |
| 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 |
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| CN112929951B (en) * | 2021-01-25 | 2023-06-30 | 中国联合网络通信集团有限公司 | Energy saving method and equipment |
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| CN101646267A (en) * | 2009-05-05 | 2010-02-10 | 福建三元达通讯股份有限公司 | Novel repeater system |
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| CN102231885A (en) | 2011-11-02 |
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