CN104602252A - Design of digital optical fiber indoor distribution system simultaneously supporting four systems - Google Patents
Design of digital optical fiber indoor distribution system simultaneously supporting four systems Download PDFInfo
- Publication number
- CN104602252A CN104602252A CN201310530370.1A CN201310530370A CN104602252A CN 104602252 A CN104602252 A CN 104602252A CN 201310530370 A CN201310530370 A CN 201310530370A CN 104602252 A CN104602252 A CN 104602252A
- Authority
- CN
- China
- Prior art keywords
- radio
- filter
- frequency front
- duplexer
- sfp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 10
- 238000010295 mobile communication Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract 4
- 239000000835 fiber Substances 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 229940123361 Quorum sensing inhibitor Drugs 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Abstract
The invention provides a digital optical fiber indoor distribution system simultaneously supporting four systems, which is applied to optimal coverage of signals in the field of mobile communication. The digital optical fiber indoor distribution system comprises an access unit, an extension unit and a radio frequency unit which are connected in sequence, wherein the access unit comprises a 2G duplexer/filter, a 2G radio frequency front end, a 3G duplexer/filter, a 3G radio frequency front end, a 4G duplexer/filter, a 4G radio frequency front end, a local oscillator, an RJ45 Ethernet port, an FPGA1, a CPU (Central Processing Unit) small system, a power supply module and four SFP main optical ports; the extension unit comprises an RJ45 Ethernet port, an FPGA2, a CPU small system, a power supply module, an SFP slave optical port and seven main optical ports; and the radio frequency unit comprises a 2G duplexer/filter, a 2G power amplifier/low-noise amplifier, a 2G radio frequency front end, a 3G duplexer/filter, a 3G power amplifier/low-noise amplifier, a 3G radio frequency front end, a 4G duplexer/filter, a 4G power amplifier/low-noise amplifier, a 4G radio frequency front end, a local oscillator, an RJ45 Ethernet port, an FPGA3, a CPU small system, a power supply module and an SFP slave optical port. One set of system can simultaneously support signal coverage of all operation systems of a mobile operator; the construction difficulty is lowered; coordination with an owner is reduced; and meanwhile, a WIFI (Wireless Fidelity) channel is supported.
Description
Technical field:
The present invention relates to a kind of novel four mould intelligent digital optical fiber indoor distributed systems.This system, based on digital optical fiber transmission, supports the second generation (GSM, DCS, CDMAlx), the third generation (WCDMA, CDMA-EVDO, TD-SCDMA), forth generation (FDDLTE, TDLTE) mobile communication technology provide 100 m ethernet passage for connection WIFI AP simultaneously.
Industry background:
Current moving communicating field experienced by the first generation (simulation), the second generation (GSM, CDMAlx), the third generation (WCDMA, CDMA-EVDO, TD-SCDMA), is stepping into forth generation (FDDLTE, TDLTE).We state the first generation, the second generation, the third generation, forth generation mobile communication technology with lG, 2G, 3G, 4G below.Wherein 1G is eliminated, but 2G, 3G, 4G will Long Coexistences, add WIFI hot spot, and in fact 3 large mobile communication carriers need the network of O&M 4 kinds of standards simultaneously.
In some occasion, such as intensive building or large stadium etc., be difficult to carry out effective quorum sensing inhibitor to indoor by outdoor macro base station.At this moment just need to lay indoor distributed system.On market, existing indoor distributed system can be divided into two classes, and a class is the modeling scheme adopting mixer, coupler, power splitter, and this scheme feeder line cost is too high, owner's difficult coordination, and in net, interference is large.Another kind of is low-speed digital scheme, and this kind of scheme is relatively outmoded due to the technology adopted, and can only support 2G, 3G two kinds of standards.
Summary of the invention:
The technical problem to be solved in the present invention, there are provided that a kind of four moulds work simultaneously, supports the digital fiber indoor distributed system of 2G, 3G, 4G mobile communication technology and WIFI passage.Achieve and support all business of operator with set of system.Improve signal quality simultaneously, reduce difficulty of construction.
The present invention is achieved in that
The present invention four modulus word optical fiber indoor distributed system comprises three kinds of unit: access unit, expanding element and radio frequency unit.Described access unit is connected with expanding element, and expanding element can connect radio frequency unit, also can connect expanding element again.
Described access unit comprises: 2G duplexer/filter, 2G radio-frequency front-end, 3G duplexer/filter, 3G radio-frequency front-end, 4G duplexer/filter, 4G radio-frequency front-end, local oscillator, RJ45 network interface, FPGAl, CPU mini system, supply module, 4 SFP main light port.Described 2G duplexer/filter is connected to 2G radio-frequency front-end, is connected to described FPGAl.Described 3G duplexer/filter is connected to 3G radio-frequency front-end, is connected to FPGA1.Described 4G duplexer/filter is connected to 4G radio-frequency front-end, is connected to FPGAl.Described RJ45 network interface is connected to FPGAl.Described CPU mini system is connected to FPGAl.Described 4 SFP main light port are all connected to FPGAl.Described local oscillator provides local clock to each radio-frequency front-end and FPGAl.Described power module is powered to each part mentioned above.
Described expanding element comprises: RJ45 network interface, FPGA2, CPU mini system, supply module, 1 SFP from Guang Kou, 7 SFP main light port.Described RJ45 network interface is connected to FPGA2.Described CPU mini system is connected to FPGA2.Described 1 SFP is all connected to FPGA2 from light mouth and 7 SFP main light port.Described power module is powered to each part mentioned above.
Described radio frequency unit comprises: 2G duplexer/filter, 2G power amplifier/LNA, 2G radio-frequency front-end, 3G duplexer/filter, 3G power amplifier/LNA, 3G radio-frequency front-end, 4G duplexer/filter, 4G power amplifier/LNA, 4G radio-frequency front-end, local oscillator, RJ45 network interface, FPGA3, CPU mini system, supply module, SFP is from Guang Kou.Described 2G duplexer/filter is connected to 2G power amplifier/LNA, is connected to 2G radio-frequency front-end, is connected to described FPGA3.Described 3G duplexer/filter is connected to 3G power amplifier/LNA, is connected to 3G radio-frequency front-end, is connected to FPGA3.Described 4G duplexer/filter is connected to 4G power amplifier/LNA, is connected to 4G radio-frequency front-end, is connected to FPGA3.Described RJ45 network interface is connected to FPGA3.Described CPU mini system is connected to FPGA3.Described SFP is connected to FPGA3 from Guang Kou.Described local oscillator provides local clock to each radio-frequency front-end and FPGA3.Described power module is powered to each part mentioned above.
Further, the networking in a star fashion of described access unit, expanding element, radio frequency unit, networking scale is very flexible.Its minimal network structure is 1:0:1, and that is expanding element directly can not connect radio frequency unit by expanding element.Maximum network structure is 1:32:196, namely 1 access unit, 32 expanding elements, 196 radio frequency units.Access unit can connect at most 4 expanding elements, and each expanding element can connect 7 expanding elements again again, and then each expanding element connects 7 radio frequency units again.
Tool of the present invention has the following advantages:
2G, 3G, 4G, WIFI passage of the present invention 4 standards work simultaneously.
The present invention just can support all mobile communication standards by selecting different radio-frequency devices, comprises GSM, DCS, CDMAlx, WCDMA, CDMA-EVDO, TD-SCDMA, FDDLTE, TDLTE, WIFI passage.
4G passage of the present invention supports two two receipts (double antenna MIMO).
WIFI passage of the present invention is the capacity of lOOMbps, and supports 10/100Mbps self-adapted protocol.
The maximum length of the connecting fiber between access unit of the present invention to radio frequency unit can be 3 kilometers.This length is the fiber lengths sum of a light path between access unit, expanding element, radio frequency unit.
Accompanying drawing illustrates:
Fig. 1. access unit module diagram of the present invention
Fig. 2. expanding element module diagram of the present invention
Fig. 3. radio frequency unit module schematic diagram of the present invention
Fig. 4. present system structural representation
Fig. 5. radio frequency unit connection diagram of the present invention
Fig. 6. the present invention (GSM+TDS-CDMA+TDLTE+WIFI) access unit module diagram
Fig. 7. the present invention (GSM+TDS-CDMA+TDLTE+WIFI) radio frequency unit module schematic diagram
Embodiment:
Divide product that embodiment is described for the room of applicable China Mobile below.This product needed supports GSM, TDS-CDMA, TDLTE, WIFI passage.
In this embodiment, described access unit comprises: GSM duplexer, GSM radio-frequency front-end, TDS-CDMA filter, TDS-CDMA radio-frequency front-end, TDLTE filter, TDLTE radio-frequency front-end, local oscillator, RJ45 network interface, FPGAl, CPU mini system, supply module, 4 SFP main light port.Described GSM duplexer is connected to GSM radio-frequency front-end, is connected to described FPGA.Described TDS-CDMA filter is connected to TDS-CDMA radio-frequency front-end, is connected to FPGAl.Described TDLTE filter is connected to TDLTE radio-frequency front-end, is connected to FPGAl.Described RJ45 network interface is connected to FPGAl.Described CPU mini system is connected to FPGAl.Described 4 SFP main light port are all connected to FPGAl.Described local oscillator provides local clock to each radio-frequency front-end and FPGAl.Described power module is powered to each part mentioned above.
Described expanding element comprises: RJ45 network interface, FPGA2, CPU mini system, supply module, 1 SFP from Guang Kou, 7 SFP main light port.Described RJ45 network interface is connected to FPGA2.Described CPU mini system is connected to FPGA2.Described 1 SFP is all connected to FPGA2 from light mouth and 7 SFP main light port.Described power module is powered to each part mentioned above.
Described radio frequency unit comprises: mixer, GSM duplexer, GSM power amplifier/LNA, GSM radio-frequency front-end, TDS-CDMA filter, TDS-CDMA radio-frequency front-end, local oscillator, RJ45 network interface, and FPGA3, CPU mini system, supply module, SFP is from Guang Kou.Described GSM duplexer one end is connected to mixer, and one end is connected to GSM power amplifier/LNA, is connected to GSM radio-frequency front-end, is connected to described FPGA3.Described TDS-CDMA filter one end is connected to mixer, and one end is connected to TDS-CDMA power amplifier/LNA, is connected to TDS-CDMA radio-frequency front-end, is connected to FPGA3.A mouth of one end of described TDLTE filter is connected to mixer, and another mouth is connected to radio frequency mouth 2.2 mouths of the other end are all connected to TDLTE power amplifier/LNA, are connected to TDLTE radio-frequency front-end, are connected to FPGA3.Described RJ45 network interface is connected to FPGA3.Described CPU mini system is connected to FPGA3.Described SFP is connected to FPGA3 from Guang Kou.Described local oscillator provides local clock to each radio-frequency front-end and FPGA3.Described power module is powered to each part mentioned above.
The GSM radio frequency mouth of described access unit is connected by the radio frequency mouth of coupler with GSM information source base station.The TDS-CDMA radio frequency mouth of described access unit is connected by the radio frequency mouth of coupler with TDS-CDMA information source base station.Two radio frequency mouths of the TDLTE of described access unit are connected with two radio frequency mouths of TDLTE information source base station each via coupler.
The SFP of described expanding element passes through Fiber connection from the SFP main light port of light mouth and access unit.The SFP of described expanding element also can pass through Fiber connection with the SFP main light port of upper level expanding element from light mouth.
The SFP of described radio frequency unit passes through Fiber connection from the SFP master of light mouth and expanding element.The SFP of described radio frequency unit also can be connected with the SFP main light port of access unit from light mouth.The radio frequency mouth 1 of described radio frequency unit is connected by radio frequency cable with the broadband ports of dual polarized antenna.The radio frequency mouth 2 of described radio frequency unit is connected by radio frequency cable with the narrow band port of dual polarized antenna.
Present system operation principle:
Downlink working principle: access unit obtains radiofrequency signal respectively by GSM radio frequency mouth, TDS-CDMA radio frequency mouth, TDLTE Double RF mouth from information source base station.GSM signal by duplexer along separate routes and filter, then inputs GSM radio-frequency front-end.Downstream mixer is integrated with, AD (modulus) transducer, digital filter in GSM radio-frequency front-end.Enter FPGAl from GSM radio-frequency front-end digital signal out, after Digital Down Convert, linear filter, become the code stream meeting CPRI agreement.TDS-CDMA signal, by filters filter, then inputs TDS-CDMA radio-frequency front-end.Downstream mixer is integrated with, AD converter, digital filter in TDS-CDMA radio-frequency front-end.Enter FPGAl from TDS-CDMA radio-frequency front-end digital signal out, after Digital Down Convert, linear filter, become the code stream meeting CPRI agreement.The 2 road signals of TDLTE, by filters filter, then input TDLTE radio-frequency front-end.2 tunnel downstream mixer are integrated with, 2 tunnel AD converter, 2 railway digital filters in TDLTE radio-frequency front-end.Enter FPGAl from TDLTE radio-frequency front-end digital signal out, after Digital Down Convert, linear filter, become the code stream meeting CPRI agreement.The Ethernet data of coming in from RJ45 network interface also enters FPGAl after PHY chip, by becoming the code stream meeting CPRI agreement after buffer memory.The CPRI module that said GSM code stream, TDS-CDMA code stream, TDLTE code stream, WIFI channel bit stream enter FPGAl inside is respectively packed, and is then exported by SFP light mouth.
The SFP light mouth of access unit can connect expanding element, also directly can connect radio frequency unit.Expanding element is that CPRI Data dissemination that SFP is inputted from light mouth is to each SFP main light port in the effect of down direction.
Radio frequency unit uses FPGA3 to recover GSM code stream, TDS-CDMA code stream, TDLTE code stream, WIFI channel bit stream after receiving the data of the CPRI form that SFP light mouth comes.GSM code stream outputs to GSM radio-frequency front-end after Digital Up Convert, linear filter.Digital filter is integrated with, downstream mixer, DA (digital-to-analogue) transducer in GSM radio-frequency front-end.Enter GSM power amplifier module from GSM radio-frequency front-end analog signal out and carry out power amplification, then enter GSM duplexer and carry out filtering and road is closed in transmitting-receiving, and then output to mixer.TDS-CDMA code stream outputs to TDS-CDMA radio-frequency front-end after Digital Up Convert, linear filter.Digital filter is integrated with, downstream mixer, D/A converter in TDS-CDMA radio-frequency front-end.Enter TDS-CDMA power amplifier module from TDS-CDMA radio-frequency front-end analog signal out and carry out power amplification, then enter TDS-CDMA filters filter, and then output to mixer.TDLTE code stream outputs to TDLTE radio-frequency front-end after Digital Up Convert, linear filter.2 railway digital filters are integrated with, 2 tunnel downstream mixer, 2 tunnel D/A converter in TDLTE radio-frequency front-end.Enter two-way TDLTE power amplifier module from TDLTE radio-frequency front-end 2 tunnel analog signals out and carry out power amplification, then enter two-way TDLTE filters filter, then wherein a road outputs to mixer again.The broadband ports of dual polarized antenna is outputted to after entering 3 signals conjunction roads, road of mixer.An other road output signal of two-way TDLTE filter does not need to enter mixer, directly connects the another one radio frequency mouth-narrow band port of dual polarized antenna.WIFI code stream sends into PHY chip, exports, connect the AP (access point) of WIFI after becoming ethernet signal from RJ45 port.
Up operation principle: radio frequency unit receives respectively by radio frequency mouth 1 broadband upstream signal that dual polarized antenna sends here, and this signal is divided into GSM, TDS-CDMA, TDLTE upward signal after mixer.The signal that radio frequency unit mouth 2 is come in does not need through mixer, directly enters TDLTE filter.Said GSM signal by duplexer along separate routes and filter, then inputs GSM LNA, then enters GSM radio-frequency front-end.Upstream mixer is integrated with, AD (modulus) transducer, digital filter in GSM radio-frequency front-end.Enter FPGA3 from GSM radio-frequency front-end digital signal out, after Digital Down Convert, linear filter, become the code stream meeting CPRI agreement.TDS-CDMA signal, by filters filter, then inputs TDS-CDMA LNA, then enters TDS-CDMA radio-frequency front-end.Upstream mixer is integrated with, AD converter, digital filter in TDS-CDMA radio-frequency front-end.Enter FPGA3 from TDS-CDMA radio-frequency front-end digital signal out, after Digital Down Convert, linear filter, become the code stream meeting CPRI agreement.The 2 road signals of TDLTE, by filters filter, then input TDLTE LNA, then enter TDLTE radio-frequency front-end.2 tunnel upstream mixer are integrated with, 2 tunnel AD converter, 2 railway digital filters in TDLTE radio-frequency front-end.Enter FPGA3 from TDLTE radio-frequency front-end digital signal out, after Digital Down Convert, linear filter, become the code stream meeting CPRI agreement.RJ45 network interface connects the AP (access point) of WIFI, and the Ethernet data of coming in from this mouthful also enters FPGA3 after PHY chip, by becoming the code stream meeting CPRI agreement after buffer memory.The CPRI module that said GSM code stream, TDS-CDMA code stream, TDLTE code stream, WIFI channel bit stream enter FPGA3 inside is respectively packed, and is then exported by SFP light mouth.
The SFP light mouth of radio frequency unit can connect expanding element, also directly can connect access unit.Expanding element is different with Ethernet CPRI data in the effect radio frequency CPRI data of up direction.Radio frequency CPRI data, expanding element carries out amplitude adjustment to the data from each radio frequency unit, then carries out vector addition, is merged into road CPRI data, is sent to upper level expanding element or access unit.Concerning Ethernet CPRI data, expanding element is a switch, carries out layer two exchange from the data from each radio frequency unit, upper level expanding element or access unit.
Access unit uses FPGAI to recover GSM code stream, TDS-CDMA code stream, TDLTE code stream, WIFI channel bit stream after receiving the data of the CPRI form that SFP light mouth comes.GSM code stream outputs to GSM radio-frequency front-end after Digital Up Convert, linear filter.Digital filter is integrated with, upstream mixer, DA (digital-to-analogue) transducer in GSM radio-frequency front-end.Enter GSM duplexer from GSM radio-frequency front-end analog signal out and carry out filtering and road is closed in transmitting-receiving, then output to GSM port.TDS-CDMA code stream outputs to TDS-CDMA radio-frequency front-end after Digital Up Convert, linear filter.Digital filter is integrated with, upstream mixer, D/A converter in TDS-CDMA radio-frequency front-end.Enter TDS-CDMA filters filter from TDS-CDMA radio-frequency front-end analog signal out, then output to TDS-CDMA port.TDLTE code stream outputs to TDLTE radio-frequency front-end after Digital Up Convert, linear filter.2 railway digital filters are integrated with, 2 tunnel upstream mixer, 2 tunnel D/A converter in TDLTE radio-frequency front-end.Enter two-way TDLTE filters filter from TDLTE radio-frequency front-end 2 tunnel analog signals out, then output to 2 TDLTE ports.WIFI code stream sends into PHY chip, exports after becoming ethernet signal from RJ45 port.
Above execution mode is only an example of the present invention, therefore can not limit practical range of the present invention according to this, the equivalence change namely done according to description of the present invention with modify, all should still belong in scope that the present invention contains.
Claims (3)
1. a mould intelligent digital optical fiber indoor distributed system; It is characterized in that 2G, 3G, 4G, WIFI passage 4 standards work simultaneously; And support that the two of 4G send out two receipts (MIMO); System is made up of access unit, expanding element, radio frequency unit; Described access unit is connected with expanding element, also directly can be connected with radio frequency unit; Described expanding element is connected with radio frequency unit, also can be connected with next stage expanding element; Above-mentioned all connections all use optical fiber.
2. the one four mould intelligent digital optical fiber indoor distributed system according to claim l; It is characterized in that described access unit comprises: 2G duplexer/filter, 2G radio-frequency front-end, 3G duplexer/filter, 3G radio-frequency front-end, 4G duplexer/filter, 4G radio-frequency front-end, local oscillator, RJ45 network interface, FPGAl, CPU mini system, supply module, 4 SFP main light port; Described 2G duplexer/filter is connected to 2G radio-frequency front-end, is connected to described FPGA1; Described 3G duplexer/filter is connected to 3G radio-frequency front-end, is connected to FPGA1; Described 4G duplexer/filter is connected to 4G radio-frequency front-end, is connected to FPGAl; Described RJ45 network interface is connected to FPGAl; Described CPU mini system is connected to FPGAl; Described 4 SFP main light port are all connected to FPGAl; Described local oscillator provides local clock to each radio-frequency front-end and FPGAl; Described power module is powered to each part mentioned above;
Described expanding element comprises: RJ45 network interface, FPGA2, CPU mini system, supply module, 1 SFP from Guang Kou, 7 SFP main light port; Described RJ45 network interface is connected to FPGA2; Described CPU mini system is connected to FPGA2; Described 1 SFP is all connected to FPGA2 from light mouth and 7 SFP main light port; Described power module is powered to each part mentioned above;
Described radio frequency unit comprises: 2G duplexer/filter, 2G power amplifier/LNA, 2G radio-frequency front-end, 3G duplexer/filter, 3G power amplifier/LNA, 3G radio-frequency front-end, 4G duplexer/filter, 4G power amplifier/LNA, 4G radio-frequency front-end, local oscillator, RJ45 network interface, FPGA3, CPU mini system, supply module, SFP is from Guang Kou; Described 2G duplexer/filter is connected to 2G power amplifier/LNA, is connected to 2G radio-frequency front-end, is connected to described FPGA3; Described 3G duplexer/filter is connected to 3G power amplifier/LNA, is connected to 3G radio-frequency front-end, is connected to FPGA3; Described 4G duplexer/filter is connected to 4G power amplifier/LNA, is connected to 4G radio-frequency front-end, is connected to FPGA3; Described RJ45 network interface is connected to FPGA3; Described CPU mini system is connected to FPGA3; Described SFP is connected to FPGA3 from Guang Kou; Described local oscillator provides local clock to each radio-frequency front-end and FPGA3; Described power module is powered to each part mentioned above.
3. a kind of four mould intelligent digital optical fiber indoor distributed systems according to claim 1, is characterized in that described access unit, expanding element, radio frequency unit can form Star Network and can support 1:32:196 at most.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530370.1A CN104602252B (en) | 2013-11-01 | 2013-11-01 | A kind of design of digital fiber indoor distributed system that is while supporting four kinds of standards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530370.1A CN104602252B (en) | 2013-11-01 | 2013-11-01 | A kind of design of digital fiber indoor distributed system that is while supporting four kinds of standards |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104602252A true CN104602252A (en) | 2015-05-06 |
| CN104602252B CN104602252B (en) | 2018-09-28 |
Family
ID=53127665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310530370.1A Active CN104602252B (en) | 2013-11-01 | 2013-11-01 | A kind of design of digital fiber indoor distributed system that is while supporting four kinds of standards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104602252B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680950A (en) * | 2016-01-27 | 2016-06-15 | 南京典格通信科技有限公司 | Five-mode seven-frequency ten-channel intelligent digital optical fiber indoor distribution system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231885A (en) * | 2011-06-13 | 2011-11-02 | 福建三元达通讯股份有限公司 | Multifunctional micro-power indoor distributed system |
| CN202111862U (en) * | 2011-06-13 | 2012-01-11 | 福建三元达通讯股份有限公司 | Multifunctional micropower indoor distribution system |
| CN102412907A (en) * | 2011-12-07 | 2012-04-11 | 奥维通信股份有限公司 | Multi-system network convergence digital fiber remote system |
| WO2012058061A1 (en) * | 2010-10-28 | 2012-05-03 | Corning Cable Systems Llc | Sectorization in distributed antenna systems, and related components and methods |
| CN102571212A (en) * | 2012-02-08 | 2012-07-11 | 深圳国人通信有限公司 | Indoor optical fiber distribution system |
| CN202841549U (en) * | 2012-09-18 | 2013-03-27 | 京信通信系统（中国）有限公司 | Communication equipment supporting multiple services and active antenna terminal system |
| CN103117909A (en) * | 2012-12-26 | 2013-05-22 | 福建邮科通信技术有限公司 | Multi-system digital optical fiber category 5 cable distribution system |
| CN103166710A (en) * | 2012-12-19 | 2013-06-19 | 中国联合网络通信集团有限公司 | Downlink signal transmission method, access device and trunk device |
-
2013
- 2013-11-01 CN CN201310530370.1A patent/CN104602252B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058061A1 (en) * | 2010-10-28 | 2012-05-03 | Corning Cable Systems Llc | Sectorization in distributed antenna systems, and related components and methods |
| CN102231885A (en) * | 2011-06-13 | 2011-11-02 | 福建三元达通讯股份有限公司 | Multifunctional micro-power indoor distributed system |
| CN202111862U (en) * | 2011-06-13 | 2012-01-11 | 福建三元达通讯股份有限公司 | Multifunctional micropower indoor distribution system |
| CN102412907A (en) * | 2011-12-07 | 2012-04-11 | 奥维通信股份有限公司 | Multi-system network convergence digital fiber remote system |
| CN102571212A (en) * | 2012-02-08 | 2012-07-11 | 深圳国人通信有限公司 | Indoor optical fiber distribution system |
| CN202841549U (en) * | 2012-09-18 | 2013-03-27 | 京信通信系统（中国）有限公司 | Communication equipment supporting multiple services and active antenna terminal system |
| CN103166710A (en) * | 2012-12-19 | 2013-06-19 | 中国联合网络通信集团有限公司 | Downlink signal transmission method, access device and trunk device |
| CN103117909A (en) * | 2012-12-26 | 2013-05-22 | 福建邮科通信技术有限公司 | Multi-system digital optical fiber category 5 cable distribution system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680950A (en) * | 2016-01-27 | 2016-06-15 | 南京典格通信科技有限公司 | Five-mode seven-frequency ten-channel intelligent digital optical fiber indoor distribution system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104602252B (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100399842C (en) | Middle-frequency transmission method and middle-frequency interface for base-station to realize radio-frequency zoom-out | |
| CN105144666B (en) | From the primary standard of the base station network interface of distributing antenna system | |
| CN103379674B (en) | A kind of multimode numeral DAS system supporting multiple source to access | |
| WO2005094487A3 (en) | System and method for aggregating multiple radio interfaces into a single logical bridge interface | |
| TW201803296A (en) | Multi-business digital light distribution system and multi-business capacity scheduling method | |
| CN102256380A (en) | Novel wireless multiple input multiple output (MIMO) sensor node | |
| CN102231885B (en) | Multifunctional micro-power indoor distributed system | |
| CN102186265A (en) | Distributed base station and networking method thereof | |
| CN201947457U (en) | Optical fiber distribution radio frequency remote system on basis of PON (Passive Optical Network) | |
| CN203387508U (en) | Novel multi-network-fusion indoor distribution system | |
| CN104602252A (en) | Design of digital optical fiber indoor distribution system simultaneously supporting four systems | |
| CN101483479A (en) | Multi-mode radio frequency switch module used for wireless communication | |
| CN202906912U (en) | Multimode digital radio frequency remote system | |
| CN203387690U (en) | Multi-mode digital DAS supporting multi-source access | |
| CN103338465A (en) | Mobile communication high-power multi-antenna distribution and coverage method and system | |
| CN103647846A (en) | Digital multipoint distribution system and transmission processing method thereof | |
| CN101237377A (en) | EPON wireless access multimedia terminal | |
| CN202841549U (en) | Communication equipment supporting multiple services and active antenna terminal system | |
| CN105680950B (en) | A kind of five moulds, seven ten channel intelligent digital optical fiber indoor distributed systems of frequency | |
| CN202231867U (en) | Mobile communication radio frequency remote system | |
| CN104936317A (en) | WiFi/dual 24L01 gateway | |
| CN201374823Y (en) | Multi-mode radio frequency switch module for wireless communication | |
| CN204836168U (en) | Miniature relay system of multimode multifrequency communications network | |
| CN203014823U (en) | Dual-frequency intelligent optical radio frequency integrated terminal | |
| CN207354626U (en) | A kind of expansion equipment and system at distribution skin station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Hongze Inventor after: He Yujun Inventor after: Zhang Li Inventor before: Zhang Hongze Inventor before: He Yujun Inventor before: Liu Yinchun Inventor before: Zhang Li |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180816 Address after: 210009 room 1806, block A2, World Trade Center, 67 Shanxi Road, Gulou District, Nanjing, Jiangsu. Applicant after: NANJING DIGITGATE TECHNOLOGY CO., LTD. Address before: 210009 6 Pei Xi Cun, Gulou District, Nanjing, Jiangsu Applicant before: NANJING YASE ELECTRONIC TECHNOLOGY CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Design of digital optical fiber indoor distribution system simultaneously supporting four systems Effective date of registration: 20200612 Granted publication date: 20180928 Pledgee: Nanjing Bank Co.,Ltd. Nanjing Financial City Branch Pledgor: NANJING DIGITGATE TECHNOLOGY Co.,Ltd. Registration number: Y2020980003035 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211229 Granted publication date: 20180928 Pledgee: Nanjing Bank Co.,Ltd. Nanjing Financial City Branch Pledgor: NANJING DIGITGATE TECHNOLOGY Co.,Ltd. Registration number: Y2020980003035 |