CN201122970Y - Double-frequency micro-power repeater - Google Patents
Double-frequency micro-power repeater Download PDFInfo
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- CN201122970Y CN201122970Y CNU200720016476XU CN200720016476U CN201122970Y CN 201122970 Y CN201122970 Y CN 201122970Y CN U200720016476X U CNU200720016476X U CN U200720016476XU CN 200720016476 U CN200720016476 U CN 200720016476U CN 201122970 Y CN201122970 Y CN 201122970Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model relates to a dual-frequency and micro-power base station for mobile communication. The dual-frequency and micro-power base station comprises a radio frequency unit and a power supply monitoring unit, wherein, the power supply monitoring unit is composed of a direct supply, a monitoring plate and an MODEM, the radio frequency unit comprises two link antenna terminal duplexers, a service antenna terminal quadruplexer and two groups of bilateral amplifying links which are arranged between the two link antenna terminal duplexers and the service antenna terminal quadruplexer, wherein, each groupstream of the bilateral amplifying links are divided into an upstream amplifying link and a downstream amplifying link, and each amplifying link is composed of a low noise amplifying circuit, a frequency band selecting circuit and a power amplifying circuit. The dual-frequency and micro-power base station adopts the technical characteristics that the dual-frequency and micro-power base station is integrated into a whole, thus effectively solving the problem of the traditional proposal of large volume, high construction cost and troublesome installation, and providing a relatively perfect and superior network optimizing system.
Description
Technical field:
The utility model relates to a kind of Wireless Telecom Equipment, specifically a kind of mobile communication double frequency micro-power repeater.
Background technology:
Mobile communication technology is in develop rapidly at present, and traffic carrying capacity is in sustainable growth, and each is runed the commercial city and has built double frequency or multifrequency mobile communications network, needs perfect, a good network optimization system urgently.The popular radio network optimisation system of tradition adopts the single-frequency repeater more, and the dual-frequency network system then adopts the discrete repeater of two covers to solve, and this traditional scheme has following shortcoming: volume is big, cost is high, trouble is installed, and need monitor respectively two repeaters.
Summary of the invention:
In view of the deficiency that above-mentioned prior art exists, the purpose of this utility model provides and is the mobile communication double frequency micro-power repeater of one a kind of double frequency repeater is held, and makes it to reduce volume, reduces cost, easy for installation.
The technical solution of the utility model is achieved in that it comprises radio frequency unit and power supply supervision unit, power supply supervision unit is by DC power supply, monitor board and MODEM form, and it is characterized in that: radio frequency unit comprise two donor antenna end duplexers and retransmitting antenna end four multiplexers and place two donor antenna end duplexers and retransmitting antenna end four multiplexer between two groups of two-way amplification links.Every group of two-way amplification link is divided into up amplification link and descending amplification link, and every amplifier chain route low noise amplifier circuit, band selection, power amplification circuit constitute.Filtering finished by donor antenna end duplexer and the road function is closed in transmitting-receiving, retransmitting antenna end four multiplexers except that finish filtering and transmitting-receiving close also finish A, two frequency ranges of B the function of road close the road function.
On the radio frequency unit of this double frequency micro-power repeater and the power supply supervision unit structure is split, places respectively in the housing.Radio frequency unit adopts the RS485 bus to be connected with power supply supervision unit.
Radio frequency unit comprise " worker " font aluminium section bar cavity and be placed in this cavity up and down cover plate and base plate and place cavity interior amplification link plate, pilot signal collection plate, two donor antenna end duplexers and retransmitting antenna end four multiplexers place the cavity both sides.The design of cavity side has radiation tooth, guarantees the radio frequency unit heat radiation.The TX of duplexer and four multiplexers, RX interface directly are connected and amplify on the link plate, so not only make compact conformation, reduce volume, and have saved cost.Every is amplified in the middle of the link, amplifies between the link plate, amplifies between link plate and the pilot signal collection plate to be equipped with the shielding parting bead, guarantees the isolation between each element circuit.
Donor antenna A in double frequency (for example A frequency, B are frequently) the micro-power repeater system receives the A frequency band signals from the base station, outside duplexer filtering band after the spurious signal, send into low noise amplifier circuit and carry out the low noise amplification, faint received signal is brought up to the appropriate signals level.Carry out power amplification through sending into power amplification circuit after the strict filtering of descending A band selection then, signal is brought up to enough power levels, through the outer spurious signal of four multiplexer filtering bands, by retransmitting antenna signal is transmitted into service area at last again.Thereby finish A frequency range down going channel function.
Equally, after retransmitting antenna receives upward signal from A frequency range user, outside four multiplexer filtering bands after the spurious signal, send into low noise amplifier and carry out the low noise amplification, faint received signal is brought up to the appropriate signals level. carry out power amplification through sending into power amplifier after the strict filtering of up A band selector then.Signal is brought up to enough power levels, pass through the outer spurious signal of duplexer filtering band again, by donor antenna signal is turned back to the base station at last.Thereby finish A frequency range data feedback channel function.So just having set up A frequency range blind area mobile phone is connected with the network of A frequency range base station.
The process of B frequency range and A frequency range is identical, just the frequency range difference.
Technique effect of the present utility model is the double frequency repeater to be held be one, has solved the problem that the traditional scheme volume is big, cost is high, installation bothers effectively, and more perfect, a good network optimization system is provided.
Below in conjunction with accompanying drawing the utility model is done with explanation.
Description of drawings:
Fig. 1 is the utility model circuit block diagram;
Fig. 2 is the radio frequency unit fundamental diagram;
Fig. 3 is the utility model complete machine schematic diagram;
Fig. 4 is the radio frequency unit structural representation.
Embodiment:
By accompanying drawing as can be known, the utility model comprises radio frequency unit I and power supply supervision unit II.Radio frequency unit I comprises two donor antenna A, B, A frequency range duplexer, B frequency range duplexer and retransmitting antenna end two-band four multiplexers and place two donor antenna end A frequency range duplexers, B frequency range duplexer and retransmitting antenna end two-band four multiplexer between two groups of two-way amplification links.Two groups of two-way amplification links are divided into up amplification link and descending amplification link, and wherein descending amplification link of A frequency range and up amplification link are made of the descending low noise amplifier circuit of A frequency range, descending charged road, A frequency range descending power amplifying circuit and the up low noise amplifier circuit of A frequency range, up charged road, the A frequency range ascending power amplifying circuit of selecting of A frequency range of selecting of A frequency range respectively; Descending amplification link of B frequency range and up amplification link are made of the descending low noise amplifier circuit of B frequency range, descending charged road, B frequency range descending power amplifying circuit and the up low noise amplifier circuit of B frequency range, up charged road, the B frequency range ascending power amplifying circuit of selecting of B frequency range of selecting of B frequency range respectively.Power supply supervision unit II is by DC power supply, and monitor board and MODEM form.Filtering finished by donor antenna end duplexer and the road function is closed in transmitting-receiving, retransmitting antenna end two-band four multiplexers except that finish filtering and transmitting-receiving close also finish A, two frequency ranges of B the function of road close the road function.
Being captured in the radio frequency unit of pilot signal finished, when the downstream signal of repeater reception from the base station, after the process duplexer filters out the outer clutter of band, behind the standing wave of isolator assurance input port, amplify through low noise amplifier tube (RF3863) again, consider that duplexer transmitting-receiving isolates and have only 50dBC, and cause the second level amplifier state that reaches capacity, therefore add the one-level filter (suppresses 〉=35dBC) carries out filtering, thereby guarantee that second level amplifier works in linear condition all the time in low noise amplifier tube back.Carry out twice amplification (ECG055) again after the filtering and enter frequency mixer (MD-0006), be mixed to the intermediate frequency of designed requirement, through entering frequency mixer (MD-0006) again after intermediate frequency filtering (LBN1405) and the intermediate frequency two-stage amplification (ECG055), mixing goes out the radiofrequency signal of original base station, consider simultaneously that local oscillator leakage signals that mixing produces is excessive and disturb other transmitter, thereby in addition twice filtering once more (suppresses 〉=70dBC) suppresses local oscillator leakage signals, do not influence other transmitter thereby reach, pure radiofrequency signal after the filtering enters the balance amplifying circuit once more, this balancing circuitry is made up of two 3dB electric bridges and two power amplifier tubes (RF3809 two-stage parallel connection), plays the effect that balance is amplified.Last pure radiofrequency signal balance is amplified the back to retransmitting antenna, is emitted to the area of coverage, thereby finishes the down going channel function.The size that the power of donor antenna position, repeater received signal and coverage are considered in practical application is difference to some extent, requirement can be controlled the gain and the power output of repeater, in addition, consider the fading effect of spacing wave transmission course, requirement has output auto_steady amplitude function, for this reason, in the uplink and downlink passage, be added with ATT (decay), MGC and ALC (automatic electric-level control) circuit respectively.
On the radio frequency unit I of double frequency micro-power repeater and the power supply supervision unit II structure is split, places respectively in the housing, and power supply supervision unit is implemented monitoring to the running parameter of radio frequency unit, and radio frequency unit adopts the RS485 bus to be connected with power supply supervision unit.Wherein radio frequency unit I comprise " worker " font aluminium section bar cavity 3 and this cavity cover plate 1 up and down that is placed in base plate 12 and place amplification link plate 2,4,9,11,5, two donor antenna ends of pilot signal collection plate A frequency range duplexer 7, B frequency range duplexer 8 and retransmitting antenna end two-band four multiplexers 6 in the cavity 3 to place the cavity both sides.The design of radio frequency unit cavity 3 sides has radiation tooth 13, guarantees the radio frequency unit heat radiation.TX, the RX interface of A frequency range duplexer 7, B frequency range duplexer 8 and two-band four multiplexers 6 directly is connected and amplifies on the link plate.Every is amplified in the middle of the link, amplifies between the link plate, amplifies to be equipped with shielding parting bead 10 between link plate and the pilot signal collection plate, guarantees the isolation between each element circuit.
This double frequency micro-power repeater can be applicable to:
The double frequency mobile communication system of all or part of frequency range of 900MHz/1800MHz;
The double frequency mobile communication system of all or part of frequency range of 900MHz/2100MHz;
The double frequency mobile communication system of all or part of frequency range of 1800MHz/2100MHz;
The double frequency mobile communication system of all or part of frequency range of 800MHz/2100MHz;
The double frequency mobile communication system of all or part of frequency range of 800MHz/1900MHz;
The double frequency mobile communication system of 900MHz/800MHz band segment;
The double frequency mobile communication system of 1800MHz/1900MHz band segment;
The double frequency mobile communication system of 900MHz/900MHz two sub-frequency bands;
The double frequency mobile communication system of 1800MHz/1800MHz two sub-frequency bands;
The double frequency mobile communication system of 2100MHz/2100MHz two sub-frequency bands;
The double frequency mobile communication system of 800MHz/800MHz two sub-frequency bands;
The double frequency mobile communication system of 1900MHz/1900MH two sub-frequency bands;
Be used for GSM, CDMA (AMPS), DCS, PCS, WCDMA mobile communication system uplink and downlink signal are amplified, realize the same frequency forwarding.
Claims (6)
1, a kind of mobile communication double frequency micro-power repeater, it comprises radio frequency unit and power supply supervision unit, power supply supervision unit is by DC power supply, monitor board and MODEM form, it is characterized in that: radio frequency unit comprise two donor antenna end duplexers and retransmitting antenna end four multiplexers and place two donor antenna end duplexers and retransmitting antenna end four multiplexer between two groups of two-way amplification links, every group of two-way amplification link is divided into up amplification link and descending amplification link, every amplifier chain route low noise amplifier circuit, band selection, power amplification circuit constitutes.
2, double frequency micro-power repeater as claimed in claim 1 is characterized in that: on the radio frequency unit of this double frequency micro-power repeater and the power supply supervision unit structure is split, places respectively in the housing.
3, as claim 1 and 2 described double frequency micro-power repeaters, it is characterized in that: radio frequency unit comprise " worker " font aluminium section bar cavity and be placed in this cavity up and down cover plate and base plate and place cavity interior amplification link plate, pilot signal collection plate, two donor antenna end duplexers and retransmitting antenna end four multiplexers place the cavity both sides.
4, double frequency micro-power repeater as claimed in claim 3 is characterized in that: the design of radio frequency unit cavity side has radiation tooth.
5, double frequency micro-power repeater as claimed in claim 1 is characterized in that: the TX of duplexer and four multiplexers, RX interface directly are connected and amplify on the link plate.
6, double frequency micro-power repeater as claimed in claim 1 is characterized in that: every is amplified in the middle of the link, amplifies between the link plate, amplifies between link plate and the pilot signal collection plate to be equipped with the shielding parting bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720016476XU CN201122970Y (en) | 2007-12-06 | 2007-12-06 | Double-frequency micro-power repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720016476XU CN201122970Y (en) | 2007-12-06 | 2007-12-06 | Double-frequency micro-power repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201122970Y true CN201122970Y (en) | 2008-09-24 |
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ID=40010211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720016476XU Expired - Lifetime CN201122970Y (en) | 2007-12-06 | 2007-12-06 | Double-frequency micro-power repeater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201122970Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102164109A (en) * | 2010-02-22 | 2011-08-24 | 鼎桥通信技术有限公司 | Downlink frequency offset compensation method and repeater used for performing downlink frequency offset compensation |
| CN102545991A (en) * | 2010-12-29 | 2012-07-04 | 深圳国人通信有限公司 | Modem-based time division-synchronous code division multiple access (TD-SCDMA) on-vehicle repeater and channel switching method |
| CN103401600A (en) * | 2013-08-06 | 2013-11-20 | 胡自力 | An integrated intelligent micropower repeater |
| US9467191B2 (en) | 2012-11-12 | 2016-10-11 | Qualcomm Incorporated | Antenna interface circuits with quadplexers |
-
2007
- 2007-12-06 CN CNU200720016476XU patent/CN201122970Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102164109A (en) * | 2010-02-22 | 2011-08-24 | 鼎桥通信技术有限公司 | Downlink frequency offset compensation method and repeater used for performing downlink frequency offset compensation |
| CN102164109B (en) * | 2010-02-22 | 2014-02-26 | 鼎桥通信技术有限公司 | Downlink frequency offset compensation method and repeater used for performing downlink frequency offset compensation |
| CN102545991A (en) * | 2010-12-29 | 2012-07-04 | 深圳国人通信有限公司 | Modem-based time division-synchronous code division multiple access (TD-SCDMA) on-vehicle repeater and channel switching method |
| US9467191B2 (en) | 2012-11-12 | 2016-10-11 | Qualcomm Incorporated | Antenna interface circuits with quadplexers |
| US9660691B2 (en) | 2012-11-12 | 2017-05-23 | Qualcomm Incorporated | Antenna interface circuits with quadplexers |
| CN104798308B (en) * | 2012-11-12 | 2018-03-23 | 高通股份有限公司 | Antenna interface circuit with four work devices |
| CN103401600A (en) * | 2013-08-06 | 2013-11-20 | 胡自力 | An integrated intelligent micropower repeater |
| CN103401600B (en) * | 2013-08-06 | 2016-02-24 | 胡自力 | A kind of integral intelligent micropower direct amplification machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080924 |