CN201585144U - Novel double-frequency repeater system - Google Patents
Novel double-frequency repeater system Download PDFInfo
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- CN201585144U CN201585144U CN2009201831045U CN200920183104U CN201585144U CN 201585144 U CN201585144 U CN 201585144U CN 2009201831045 U CN2009201831045 U CN 2009201831045U CN 200920183104 U CN200920183104 U CN 200920183104U CN 201585144 U CN201585144 U CN 201585144U
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Abstract
The utility model discloses a novel double-frequency repeater system comprising a standard form main unit, a plurality of far-end wireless units and a plurality of expanding units, wherein the standard form main unit is connected with the expanding units through optical fibers; and the expanding units are connected with the far-end wireless units through community antenna television cables; the one standard form main unit is connected with the four expanding units; and each expanding unit is further connected with the eight far-end wireless units. The novel double-frequency repeater system has the advantages of having low cost and being capable of being widely applied to cities and other dense areas.
Description
[technical field]
The utility model is about a kind of transmission system, is meant a kind of double frequency novel repeater system especially.
[background technology]
The routing issue of large-scale wireless shrouding system is more and more outstanding, and the integrated construction of broadband network and wireless network is the inexorable trend of future development.The division of network frequency range standard causes the limitation of repeater hardware, present large-scale wireless shrouding system that following several big problem is arranged:
1, the feeder line cost is too high, and price is several times of common CATV (Community Antenna Television, CATV) cable;
2, the owner coordinates difficulty, because the feeder line color is black (generally), diameter is 20mm, and when house wiring was installed, indoor wall mostly was the white paint finishing, and feeder line is thicker, and layout affects greatly overall appearance;
3, the far-end radio-cell all needs single power supply in existing network system, and for indoor distributed system, corresponding all the need is equipped with the external power source interface in the installation site, has big inconvenience.
4, same mounting points can not be installed the equipment of different systems frequency range simultaneously.
Repeater (repeater) belongs to the frequency multiplying arrangement, is meant to play a kind of radio transmission transferring equipment that signal strengthens in the wireless communication transmissions process.The basic function of repeater is exactly a radiofrequency signal power intensifier.The repeater by pickoff signals in the existing overlay area of donor antenna,, is transmitted into the signal of filtering once more after power amplifier amplifies and treats the overlay area carrying out fabulous isolation with logical outer signal by band pass filter in down link.In up link, the signal of the travelling carriage mobile phone in the overlay area is transmitted into corresponding base station with same working method after by up amplification link processing, thereby reaches the signal transmission of base station and mobile phone.The repeater is a kind of relaying product.
For the repeater, it is particularly important that the isolation of signal seems.Wireless discharging-directly station is from the space received signal, certainly will require spacing wave pure as far as possible; And in the base station close quarters comparatively, the difficulty of separating different base station or sector signals will increase greatly, and the repeater is increased base station interference.So the close quarters comparatively in the base station, the introducing mode of wire signal is adopted in suggestion as far as possible.Mostly operator adopts the wireless access form now.
And existing ordinary optic fibre repeater is merely able to support 1 near-end to drag 8 far-ends.
Common repeater does not change operating frequency in transmission course.
Conventional monitoring repeater is monitored its each module and is adopted the outside line connected mode.
The network of one-segment standard is only supported in conventional repeater.
[utility model content]
Technical problem to be solved in the utility model be to provide a kind of cost low, support two kinds of frequency range network formats and can enlarge the novel repeater system that is applied to comparatively intensive areas such as city.
The utility model solves the problems of the technologies described above by the following technical programs: a kind of double frequency novel repeater system, comprise a standard type master unit and a plurality of far-end radio-cell, also comprise a plurality of expanding elements, described standard type master unit is connected with expanding element by optical fiber, and expanding element is connected with the far-end radio-cell by the CATV cable.
This utility model further is specially:
A described standard type master unit connects 4 expanding elements, and each expanding element connects 8 far-end radio-cells again.
Described standard type master unit comprises that up LNA, one first merit of the descending LNA of the cavity duplexer of a cabinet, a GSM frequency range standard, a GSM frequency range standard, a GSM frequency range standard divide mixer, one second merit to divide mixer, one can support the optical transceiver of two network formats, a light to divide the filter of mixer, a TD-SCDMA frequency range standard, a TD-SCDMA synchronization module, a TD-SCDMA attenuator, a monitoring unit; Described cavity duplexer, LNA, attenuator, optical transceiver, merit divide mixer, light to divide mixer and monitoring unit to be installed in the cabinet; The input of described descending LNA is connected to described cavity duplexer, the output of described descending LNA is connected to the input that described first merit is divided mixer, the output on described first merit deciliter road is connected to the input of described optical transceiver, described optical transceiver divides mixer to link to each other with light, the input of closely stating attenuator is connected to the output of described filter, the output of described attenuator is connected to the input that first merit is divided mixer, the output of described optical transceiver is connected to the input that second merit is divided mixer, described second merit divides interface of output of mixer to be connected to the input of described up LNA, another interface is connected to the input of described attenuator, and the output of described up LNA is connected to described cavity duplexer; Described synchronization module is connected to described attenuator; Described monitoring unit is connected respectively to two LNA, attenuator, optical transceiver.
Described expanding element comprises that a cabinet, one can support second optical transceiver, one the 3rd merit of two network formats to divide mixer, one the 4th merit to divide mixer, Switching Power Supply, one second monitoring unit, a two-band frequency converter; Described second optical transceiver, two-band frequency converter, Switching Power Supply, second monitoring unit are installed in the cabinet, the output of described second optical transceiver is connected to the input that the 3rd merit is divided mixer, described the 3rd merit divides two outputs of mixer to be connected to two inputs of described two-band frequency converter respectively, two outputs of described two-band frequency converter are connected to two inputs that the 4th merit is divided mixer respectively, and described the 4th merit divides the output of mixer to be connected to the input of second optical transceiver; Described second monitoring unit is connected to second optical transceiver and two-band frequency converter, and Switching Power Supply is connected respectively to second optical transceiver, second monitoring unit, two-band frequency converter; The light that second optical transceiver of described expanding element is connected to described standard type master unit divides mixer.
Described far-end radio-cell is divided into two-stage, and prime is the modulation frequency-variable module, and the back level is the integrated dried amplification module of two-band, and the modulation frequency-variable module of described far-end radio-cell is connected to the two-band frequency converter of described expanding element.
The advantage of a kind of novel double frequency direct discharging station of the utility model is:
1, adopt common CATV cable, cost is low, market is extensive;
2, the CATV cable color is a milky, and diameter is 7mm, and when indoor installation, can think intuitively influences to indoor overall appearance by the closed-circuit television line very little;
3, by the expanding element internal electric source voltage is introduced the CATV cable after, be transferred to the far-end radio-cell.So, no matter where the far-end radio-cell is installed on, all can provide supply power voltage by expanding element, operation is convenient; Special transmission voltage is a high pressure, uses high-voltage transmission can reduce electric current, but the pressure drop that reduces on the CATV cable makes far-end double frequency standard operate as normal respectively.
4, master unit is connected with radio frequency between expanding element and adopts the optical fiber connected mode, adopts the optical fiber mode, makes system can vastly be applied to comparatively intensive areas such as city;
5, single master unit can connect four expanding elements.Single expanding element can connect eight far-end radio-cells.Simultaneously, aspect data communication, can realize single master unit simultaneously to four expanding elements implementation communications, single expanding element carries out data communication to eight wireless radio-cells of far-end simultaneously.On system, system descending is divided into 1:4:32 bar link, the up 32:4:1 main line that is divided into.Master unit can be realized 32 far-end radio-cells are carried out Data Transmission Controlling etc. simultaneously simultaneously in communication;
6. master unit transfers to expanding element with synchronizing signal, transfers to the far-end radio-cell again.Like this, the far-end radio-cell does not just need the support of other synchronizing signal.Provide cost savings at hardware, also reduced the volume of far-end radio-cell simultaneously
7, expanding element connects the far-end radio-cell by the CATV cable, can support the signal transmission of 0-275m.Because the transmission loss of signal is bigger on the CATV cable, 900MHz signal loss on the 275m line is approximately 40db, and 1.8GHz is approximately 65dB, the about loss 30dB of 100MHz.The loss of taking into account system on the CATV cable is to the requirement of radio-frequency module receiving sensitivity, native system adopts converter technique, the GSM frequency range: be about to down working frequency range be converted to 110MHz by the CATV cable transmission to the far-end radio-cell, on be about to working frequency range be converted to 70MHz by the CATV cable transmission to expanding element; TD-SCDMA on the CATV cable then frequency conversion be 200MHz (up-downgoing with frequently), descending TD-SCDMA synchronizing signal transmission band on the CATV line is 430MHz, last behavior 390MHz.
8, the native system characteristic by after the modulation module modulation, becomes pilot signal 0 and 1 common radiofrequency signal and transmits, and the frequency of transmission is 400MHz.This technology has solved the problem that does not connect monitoring cable by CATV cable outside again, on the other hand, radiofrequency signal and pilot signal is transmitted on the CATV cable simultaneously.
9. on the monitoring communication mechanism, expanding element is treated as a slave unit, then this expanding element is responsible for storing and the information of maximum 8 far-end radio-cell modules of coming out, master unit is as main frame, only be responsible for transmitting the information of expanding element, so on average the processing of each unit is loaded, thus the work of treatment that alleviates master unit greatly, accelerate the reaction speed of master unit, shorten the processing time.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of a kind of double frequency novel repeater system of the utility model.
Fig. 2 is the theory of constitution figure of standard type master unit among Fig. 1.
Fig. 3 is the theory of constitution figure of expanding element among Fig. 1.
Fig. 4 is the theory of constitution figure of far-end radio-cell among Fig. 1.
[embodiment]
See also Fig. 1, a kind of double frequency novel repeater system of the utility model comprises standard type master unit 1, expanding element 2, and far-end radio-cell 3.
Described standard type master unit 1 is connected with expanding element 2 by optical fiber, and expanding element 2 is connected with far-end radio-cell 3 by the CATV cable.A described standard type master unit 1 connects 4 expanding elements 2, and each expanding element 2 can connect 8 far-end radio-cells 3 again.
See also Fig. 2, described standard type master unit 1 comprises a cabinet 100 (dotted line is represented among Fig. 1), the cavity duplexer 101 of a GSM frequency range standard, the descending LNA 102 of a GSM frequency range standard, the up LNA 103 of a GSM frequency range standard, one first merit is divided mixer 104, one second merit is divided mixer 105, first optical transceiver 106 that can support two network formats, a Switching Power Supply (figure does not show), a light divides mixer 107, the filter 110 of a TD-SCDMA frequency range standard, a TD-SCDMA synchronization module 108, a TD-SCDMA attenuator 109, and first monitoring unit 111;
The annexation of described standard type master unit 1 each part is as described below:
Above-mentioned cavity duplexer 101, descending LNA 102, up LNA 103, first merit divide mixer 104, second merit to divide mixer 105, first optical transceiver 106, light to divide mixer 107, filter 110, TD-SCDMA synchronization module 108, TD-SCDMA attenuator 109 and first monitoring unit 111 to be installed in the cabinet 100.The input of described descending LNA 102 is connected to described cavity duplexer 101, the output of described descending LNA 102 is connected to the input that described first merit is divided mixer 104, the output on described first merit deciliter road 104 is connected to the input of described first optical transceiver 106, described first optical transceiver 106 divides mixer 107 to link to each other with light, the input of closely stating attenuator 109 is connected to the output of described filter 110, the output of described attenuator 109 is connected to the input that first merit is divided mixer 104, the output of described first optical transceiver 106 is connected to the input that second merit is divided mixer 105, described second merit divides interface of output of mixer 105 to be connected to the input of described up LNA 103, another interface is connected to the input of described attenuator 109, and the output of described up LNA 102 is connected to described cavity duplexer 101; Described synchronization module 108 is connected to described attenuator 109.Described first monitoring unit 111 is connected respectively to two LNA 102,103 and optical transceiver 106.
The function of described standard type master unit 1 each part is as described below:
Cavity duplexer 101: be passive device.Effect is isolation and the filtering noise signal that keeps between the uplink downlink, and its performance is how, for stray radiation, the band of repeater suppress outward, to suppress all be very important to adjacent channel.
LNA 102,103: active device, supply power voltage is generally 9V-27V.The noise factor of LNA itself is very low, has good amplification small-signal ability.Effect is that the signal to uplink downlink amplifies and reduce noise.
Attenuator 109: active device, supply power voltage are 9-27V, and effect is that the base station signal after coupling is carried out suitable decay, make the input optical transceiver 14 signal can be too not strong.
First optical transceiver 106: active device, descending RF (radio frequency) conversion of signals is become light signal (1550nm), (1310nm) converts the RF signal to the light signal of expanding element 2.
Light divides mixer 107: light signal is divided into several roads or with the light signal on several roads synthetic a tunnel.
Monitoring unit 111: be equivalent to central processing unit, be used for deal with data, send data.
See also Fig. 3, described expanding element 2 comprises that a cabinet 200, one can support second optical transceiver 201, one the 3rd merit of two network formats to divide mixer 202, one the 4th merit to divide mixer 203, Switching Power Supply 204, one second monitoring unit 205, a two-band frequency converter 206.
The annexation of described expanding element 2 each part is as described below:
Described second optical transceiver 201, the 3rd merit divide mixer 202, the 4th merit to divide mixer 203, two-band frequency converter 206, Switching Power Supply 204, second monitoring unit 205 to be installed in the cabinet 200.The output of described second optical transceiver 201 is connected to the input that the 3rd merit is divided mixer 202, described the 3rd merit divides two outputs of mixer 202 to be connected to two inputs of described two-band frequency converter 206 respectively, two outputs of described two-band frequency converter 206 be connected to respectively the 4th merit divide mixer 203 two inputs, described the 4th merit divides the output of mixer 203 to be connected to the input of second optical transceiver 201; Described second monitoring unit 205 is connected to second optical transceiver 201, and Switching Power Supply 204 is connected respectively to second optical transceiver 201, second monitoring unit 205; The light that second optical transceiver 201 of described expanding element is connected to described standard type master unit divides mixer 107.
The function of described expanding element 2 each part is as described below:
Second optical transceiver 201: upstream rf signal is converted to light signal (1310nm) be defeated by standard master unit 1, carry standard master unit 1 light signal (1550nm) of coming to convert the RF signal to.
The 3rd merit divides the mixer 202 and second merit to divide mixer 203: with synthetic one tunnel output of two signals, perhaps one road signal is divided into two-way output.
Switching Power Supply 204: active device.For expanding element 2 and far-end radio-cell 3 provide voltage.
Second monitoring unit 205: active device.Being equivalent to central processing unit, is to be used for system's deal with data, sends data.
Two-band frequency converter 206: operating frequency and the frequency of transmitting on the CATV line of GSM and TD-SCDMA are changed mutually; Simultaneously pilot signal is modulated to the effect of radiofrequency signal.
See also Fig. 4, described far-end radio-cell 3 similar Mini forms, be divided into two-stage, prime is the modulation frequency-variable module, and the back level is the integrated dried amplification module of two-band.
Described far-end radio-cell 3 each function of forming are as described below:
Be divided into three parts, first is the frequency conversion demodulation function, up Frequency-variable Modulation function.Being about to the radiofrequency signal of 110MHz down is converted to operating frequency, and the radiofrequency signal of 400MHz is demodulated into the pilot signal of this far-end radio-cell 3, isolates the 27V feed simultaneously and provides voltage for these far-end radio-cell 3 work.Up Frequency-variable Modulation is converted to 70MHz with operating frequency and transmits, and pilot signal is modulated into to send by the CATV cable after the 50MHz radiofrequency signal is closed the road simultaneously.
Level two-band integrated dried amplification module in back is divided into two parts: the independent power amplifier of following behavior, amplify the back with working signal and sent by the MS end.Last behavior LNA, amplification can reduce the upstream noise of system, improves the receiving sensitivity of base station.This part principle of GSM, TD-SCDMA is identical.
Please consult Fig. 1 to Fig. 4 simultaneously, the operation principle of this novel repeater system is as described below:
The downlink working principle:
The GSM part: GSM BS (donor antenna) end of standard type master unit is as alms giver's end, received signal.The signal that receives is by the cavity duplexer trap signal of GSM frequency range standard, descending LNA through GSM frequency range standard is amplified, enter optical transceiver through mixer, optical transceiver is converted to light signal with radiofrequency signal, after light signal divides mixer through light, be divided into four the tunnel, enter the optical transceiver of expanding element by the fiber optic cables on each road, the optical transceiver of expanding element is converted to light signal in the two-band frequency converter that enters expanding element after the radiofrequency signal by splitter along separate routes.The two-band frequency converter is converted to 140MHz with the downlink radio-frequency signal of GSM and transmits, simultaneously with monitoring unit pilot signal (see that TD-SCDMA partly illustrates by 200MHz, the 400MHz that digital signal is converted to 450MHz radiofrequency signal, 48V feed and TD-SCDMA, following mode and TD-SCDMA are shared) radiofrequency signal synthetic a road to end is divided into eight tunnel outputs, and the far-end radio-cell is given through the CATV cable transmission in every road.The far-end radio-cell can be divided into two-stage, prime is as modem module, 140MHz radiofrequency signal, 450MHz radiofrequency signal, 48V feed are decomposed, and wherein the 140MHz radiofrequency signal is converted to required working frequency range and amplifies after MS (retransmitting antenna) end is launched again through the back dried amplification module of level GSM sectoral integration.(following mode and TD-SCDMA are shared) 450MHz radiofrequency signal is demodulated into the monitoring digital signal, detects the essential information of each module in the far-end radio-cell.The 48V feed is used for the power supply of far-end radio-cell.
The TD-SCDMA part: TD-SCDMA BS (donor antenna) end of standard type master unit is as alms giver's end, received signal.The signal that receives is by the filter trap signal of TD-SCDNA frequency range standard, and then through (the up-downgoing switching of attenuator of TD-SCDMA attenuator, time slot allocation is by TD-SCDMA synchronization module control) amplify and close road output TD-SCDMA decay back and enter optical transceiver by mixer with the synchronizing signal 400MHz of TD-SCDMA self output, optical transceiver is converted to light signal with radiofrequency signal, after light signal divides mixer through light, be divided into four the tunnel, enter the optical transceiver of expanding element by the fiber optic cables on each road, the optical transceiver of expanding element is converted to light signal in the two-band frequency converter that enters expanding element after the radiofrequency signal by splitter along separate routes.The two-band frequency converter is converted to the radiofrequency signal of TD-SCDMA behind the 200MHz and the descending 140MHz of GSM, 450MHz, 48V, 400MHz (following mode and GSM are shared) synthetic one road is divided into eight tunnel outputs to end, and the far-end radio-cell is given through the CATV cable transmission in every road.The far-end radio-cell can be divided into two-stage, prime is as modem module, 200MHz radiofrequency signal, 140MHz, 450MHz radiofrequency signal, 48V feed are decomposed, and wherein the 200MHz radiofrequency signal is converted to required working frequency range and amplifies after MS (retransmitting antenna) end is launched again through the back dried amplification module of level TD-SCDMA sectoral integration.400MHz partly realizes synchronizing function as the TD-SCDMA of synchronizing signal control far-end radio-cell.(following mode and TD-SCDMA are shared) 50MHz radiofrequency signal is demodulated into the monitoring digital signal, detects the essential information of each module in the far-end radio-cell.The 48V feed is used for the power supply of far-end radio-cell.
Up operation principle:
The GSM part: the MS termination of far-end radio-cell is received the GSM client signal, filter the GSM signal by being converted to 70MHz to modem section after amplifying through three merit devices, pilot signal with the far-end radio-cell is modulated to radiofrequency signal 450MHz and 70MHz by digital signal simultaneously, 200MHz (sees the TD-SCDMA part, pilot signal is shared) after radiofrequency signal closes the road, by the two-band frequency converter of CATV cable transmission to expanding element, the two-band frequency converter is converted to the up working frequency range signal of GSM with the 70MHz radiofrequency signal, the 450MHz radiofrequency signal is demodulated into pilot signal and passes to monitoring unit, and monitoring unit obtains signal and handles.Up working frequency range signal is converted to light signal again through the optical transceiver of expanding element by radiofrequency signal, reach the optical transceiver of standard master unit by optical fiber after, be converted to radiofrequency signal by light signal, again through attenuator, reach the base station by GSM BS end behind the cavity duplexer.
The TD-SCDMA part: the MS termination of far-end radio-cell is received the TD-SCDMA client signal, filter the TD-SCDMA signal by being converted to 200MHz to modem section after amplifying through three merit devices, pilot signal with the far-end radio-cell is modulated to radiofrequency signal 450MHz and 70MHz by digital signal simultaneously, 200MHz (sees the GSM part, pilot signal is shared) after radiofrequency signal closes the road, by the two-band frequency converter of CATV cable transmission to expanding element, the two-band frequency converter is converted to the up working frequency range signal of TD-SCDMA with the 200MHz radiofrequency signal, the 450MHz radiofrequency signal is demodulated into pilot signal and passes to monitoring unit, and monitoring unit obtains signal and handles.Up working frequency range signal is again through the optical transceiver of expanding element, be converted to light signal by radiofrequency signal, reach the optical transceiver of standard master unit by optical fiber after, be converted to radiofrequency signal by light signal, through the TD-SCDMA attenuator, reach the base station by TD-SCDMA BS end behind the filter again.
Claims (5)
1. double frequency novel repeater system, comprise a standard type master unit and a plurality of far-end radio-cell, it is characterized in that: also comprise a plurality of expanding elements, described standard type master unit is connected with expanding element by optical fiber, and expanding element is connected with the far-end radio-cell by the CATV cable.
2. a kind of double frequency novel repeater system as claimed in claim 1 is characterized in that: a described standard type master unit connects 4 expanding elements, and each expanding element connects 8 far-end radio-cells again.
3. a kind of double frequency novel repeater system as claimed in claim 1 is characterized in that: described standard type master unit comprises that up LNA, one first merit of the descending LNA of the cavity duplexer of a cabinet, a GSM frequency range standard, a GSM frequency range standard, a GSM frequency range standard divide mixer, one second merit to divide mixer, one can support the optical transceiver of two network formats, a light to divide the filter of mixer, a TD-SCDMA frequency range standard, a TD-SCDMA synchronization module, a TD-SCDMA attenuator, a monitoring unit; Described cavity duplexer, LNA, attenuator, optical transceiver, merit divide mixer, light to divide mixer and monitoring unit to be installed in the cabinet; The input of described descending LNA is connected to described cavity duplexer, the output of described descending LNA is connected to the input that described first merit is divided mixer, the output on described first merit deciliter road is connected to the input of described optical transceiver, described optical transceiver divides mixer to link to each other with light, the input of closely stating attenuator is connected to the output of described filter, the output of described attenuator is connected to the input that first merit is divided mixer, the output of described optical transceiver is connected to the input that second merit is divided mixer, described second merit divides interface of output of mixer to be connected to the input of described up LNA, another interface is connected to the input of described attenuator, and the output of described up LNA is connected to described cavity duplexer; Described synchronization module is connected to described attenuator; Described monitoring unit is connected respectively to two LNA, attenuator, optical transceiver.
4. a kind of double frequency novel repeater system as claimed in claim 3 is characterized in that: described expanding element comprises that a cabinet, one can support second optical transceiver, one the 3rd merit of two network formats to divide mixer, one the 4th merit to divide mixer, Switching Power Supply, one second monitoring unit, a two-band frequency converter; Described second optical transceiver, two-band frequency converter, Switching Power Supply, second monitoring unit are installed in the cabinet, the output of described second optical transceiver is connected to the input that the 3rd merit is divided mixer, described the 3rd merit divides two outputs of mixer to be connected to two inputs of described two-band frequency converter respectively, two outputs of described two-band frequency converter be connected to respectively the 4th merit divide mixer two inputs, described the 4th merit divides the output of mixer to be connected to the input of second optical transceiver; Described second monitoring unit is connected to second optical transceiver and two-band frequency converter, and Switching Power Supply is connected respectively to second optical transceiver, second monitoring unit, two-band frequency converter; The light that second optical transceiver of described expanding element is connected to described standard type master unit divides mixer.
5. a kind of novel repeater system as claimed in claim 4, it is characterized in that: described far-end radio-cell is divided into two-stage, prime is the modulation frequency-variable module, the back level is the integrated dried amplification module of two-band, and the modulation frequency-variable module of described far-end radio-cell is connected to the two-band frequency converter of described expanding element.
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| CN2009201831045U CN201585144U (en) | 2009-09-28 | 2009-09-28 | Novel double-frequency repeater system |
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| CN2009201831045U CN201585144U (en) | 2009-09-28 | 2009-09-28 | Novel double-frequency repeater system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965036A (en) * | 2010-09-28 | 2011-02-02 | 福建三元达通讯股份有限公司 | GSM (Global System for Mobile Communications) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) micropower distribution system |
| CN102333322A (en) * | 2010-11-25 | 2012-01-25 | 深圳市瑞凯德科技有限公司 | Indoor signal covering system |
| CN102547773A (en) * | 2011-12-15 | 2012-07-04 | 四川邮科通信技术有限公司 | Wireless multi-band optical distributed coverage system |
| CN103002599A (en) * | 2012-12-20 | 2013-03-27 | 浙江柏烙尼电子有限公司 | Communication active wideband distribution system |
| CN103607548A (en) * | 2013-11-13 | 2014-02-26 | 四川福润得数码科技有限责任公司 | AV modulation output-tuning receiving integrated module group |
| CN104380619A (en) * | 2012-05-24 | 2015-02-25 | 宇宙电子股份公司 | Remote wireless base station device having in-house expandability and in-building relay system |
| US10313893B2 (en) | 2013-04-29 | 2019-06-04 | Cellphone-Mate, Inc. | Apparatus and methods for radio frequency signal boosters |
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2009
- 2009-09-28 CN CN2009201831045U patent/CN201585144U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965036A (en) * | 2010-09-28 | 2011-02-02 | 福建三元达通讯股份有限公司 | GSM (Global System for Mobile Communications) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) micropower distribution system |
| CN101965036B (en) * | 2010-09-28 | 2013-04-24 | 福建三元达通讯股份有限公司 | GSM (Global System for Mobile Communications) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) micropower distribution system |
| CN102333322A (en) * | 2010-11-25 | 2012-01-25 | 深圳市瑞凯德科技有限公司 | Indoor signal covering system |
| CN102547773A (en) * | 2011-12-15 | 2012-07-04 | 四川邮科通信技术有限公司 | Wireless multi-band optical distributed coverage system |
| CN104380619A (en) * | 2012-05-24 | 2015-02-25 | 宇宙电子股份公司 | Remote wireless base station device having in-house expandability and in-building relay system |
| CN103002599A (en) * | 2012-12-20 | 2013-03-27 | 浙江柏烙尼电子有限公司 | Communication active wideband distribution system |
| US10313893B2 (en) | 2013-04-29 | 2019-06-04 | Cellphone-Mate, Inc. | Apparatus and methods for radio frequency signal boosters |
| US11228921B2 (en) | 2013-04-29 | 2022-01-18 | Cellphone-Mate, Inc. | Apparatus and methods for radio frequency signal boosters |
| CN103607548A (en) * | 2013-11-13 | 2014-02-26 | 四川福润得数码科技有限责任公司 | AV modulation output-tuning receiving integrated module group |
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