CN201039169Y - A multi-channel radio repeater - Google Patents
A multi-channel radio repeater Download PDFInfo
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- CN201039169Y CN201039169Y CNU2007200068917U CN200720006891U CN201039169Y CN 201039169 Y CN201039169 Y CN 201039169Y CN U2007200068917 U CNU2007200068917 U CN U2007200068917U CN 200720006891 U CN200720006891 U CN 200720006891U CN 201039169 Y CN201039169 Y CN 201039169Y
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Abstract
The utility model discloses a multi-signal path wireless repeater, which comprises an up-link, a down-link, a controlled circuit with intellectual control and a multi-signal path working thoroughfare; wherein, the up-link and the down-link respectively consist of a signal path selector and a power amplifier; and the signal selectors of the up-link and the down-link are respectively provided with a signal input power level detection circuit and the power amplifiers are respectively provided with a power output detection circuit. The utility model fully utilizes the thoroughfare of the multi-signal path wireless repeater, which can conveniently and rapidly measure out the isolation between the benefactor antenna and the retransmission antenna in the multi-signal path wireless repeater without increasing the hardware cost of the apparatus and can adjust the plus in the thoroughfare to result in stable work, thus being convenient for the projecting installation, intellectual monitoring and daily maintenance.
Description
[technical field]
The utility model relates to a kind of Mobile communication direct base station, particularly relates to a kind of multi-channel wireless repeater of automatic test antenna isolation.
[background technology]
In today that mobile communication develops rapidly, the overlay area of which kind of radio communication all will produce weak signal area and blind area, and to some remote districts and the few blind area of number of users, it is too high to set up analog or digital base station cost, infrastructure is also complicated, provide for this reason a kind of cost low, set up simply, the cost-effective equipment ┄ repeater that but has the small base station function is necessary.The repeater is a kind of relaying product, and the index of weighing the repeater quality mainly contains, intelligent degree (as remote monitoring etc.), low IP3, low-noise factor (NF), spurious emissions, whole aircraft reliability, technological service etc.Come branch that wireless discharging-directly station, Optical Fiber Transmission repeater and shift frequency transmission repeater are arranged from transmission means.Because the user in later stage is more, has adopted the multi-channel wireless repeater.As shown in Figure 1, it is traditional multi-channel wireless repeater theory diagram, its each parts are connected to: receive base station signal by donor antenna 11, through duplexer 12 signal is sent into LNA (LNA) module and amplify enough signal levels, enter separately channel selector module respectively by splitter demultiplexing signal again, processing such as the filtering of process channel selector, removal interference enter power amplifier module and are amplified to certain power, through mixer that multiple signals are synthetic again, through another duplexer 13 signal is delivered to retransmitting antenna 14 then, finish the overlay area radiation.In like manner, up link operation principle and down link operation principle are similar, only the operating frequency difference.Wherein, the power supply of each active device is provided by power supply circuits, and control is finished by the monitoring processing unit.
On it, the operation principle of descending track selector module as shown in Figures 2 and 3, Fig. 2 is the theory diagram of the descending track selector module in traditional multi-channel wireless repeater, enter the first order radio-frequency filter of down channel selector module from descending LNA module output signal, reach image signal outside the filtering work zone and deliver to first frequency mixer, the local oscillation signal that is produced by (PLL) frequency synthesizer of phase locking is got one road signal through splitter and is sent into first mixing simultaneously, they generate intermediate-freuqncy signal, this intermediate-freuqncy signal is amplified the signal enter beyond the required working channel of intermediate-frequency filter filtering and spuious through the one-level intermediate-frequency tube, then, enter the secondary intermediate-frequency tube and cushion amplification, send into second frequency mixer again and come to generate radiofrequency signal to another road local oscillation signal mixing of splitter, enter second level radio-frequency filter then, remove spurious signals such as local oscillator, enter the amplification of radio-frequency driven amplifier tube and output to the down link power amplifier module.
In like manner, as shown in Figure 3, be the uplink channel selector module theory diagram of traditional multi-channel wireless repeater, uplink channel selector operation principle and downlink channel selector operation principle are similar, repeat no more.
Because wireless discharging-directly station all takes from the space coupled signal, and be with frequently, so the restriction that is subjected to alms giver's end and retransmits the end isolation between antennas of its working gain, in case isolation is not enough, self-excitation will take place.The reason that causes straight-forward station self-excitation is a lot, causes that such as variations in temperature amplifier gain variation, isolation change, the base station parameter change causes repeater input signal increase etc.
Debugging is during the repeater, can't too pursue the amplification of repeater and the accent that will gain is too much, must allow some leeway.
In order to guarantee that wireless discharging-directly station the common way of self-excitation does not take place has following two kinds:
1, the isolation between antennas between raising repeater alms giver end and the repeating transmission end, but the method can be subjected to the restriction of various environmental conditions in actual engineering, its improvement degree can only lean on engineering staff's experience to go estimation, even the costliness of carrying and heavy tester go test to the job site, the data of its test are also just reacted the state constantly of installing, and in a single day surrounding environment changes later on, and its data also change thereupon, thereby the method does not possess real-time;
2, uninterrupted in real time detection isolation between antennas, but general way all is from the inner signal that produces in the band of direct amplification machine, launches from an end antenna, receives from other end antenna then, calculates the value of corresponding isolation like this.If but the signal that emits is excessive, can produce electromagnetic environment and pollute, and the signal in the band might disturbs the generation of neighbor base station in-band on-channel carrier wave.Can increase bigger cost simultaneously.
For solving the deficiency of above-mentioned existence tradition multi-channel wireless repeater, the utility model has been done following improvement.
[summary of the invention]
Technical problem to be solved in the utility model is the multi-channel wireless repeater that is to provide a kind of test antenna isolation, makes full use of the passage of multi-channel wireless repeater, measures isolation easily, and the gain of regulating its passage automatically makes its working stability.
The utility model is achieved in that a kind of multi-channel wireless repeater, comprise that a up link, a down link, have the control circuit and the multichannel active channel of Based Intelligent Control, described link all comprises same donor antenna, retransmitting antenna and two duplexers, described up link and down link respectively comprise a channel selector and a power amplifier, the channel selector of described up link and down link all has a signal incoming level testing circuit, and power amplifier then all has an ouput power detection circuit.
Described power amplifier then all has an ouput power detection circuit.
Wherein, the channel selector internal circuit annexation of described up link and down link is: first order radio-frequency filter and first order frequency synthesizer of phase locking all with the back that links to each other with intermediate frequency amplifier, intermediate-frequency filter successively again after first frequency mixer links to each other, again by splitter, be divided into two-way, one the tunnel links to each other with level sensitive circuit through buffer amplifier, another road links to each other with variable gain amplifier, again with second level frequency synthesizer of phase locking with after second frequency mixer links to each other, link to each other with second level radio-frequency filter, radio frequency driver amplifier successively.
Multi-channel wireless provided by the utility model repeater, make full use of the passage of multi-channel wireless repeater, increasing hardly under the hardware cost situation of equipment, can measure the isolation that to adjust between multi-channel wireless repeater donor antenna and the retransmitting antenna easily, and the gain of regulating its passage makes its working stability, so that project installation, intelligent monitoring and regular maintenance.Compare with existing antenna isolating level of direct amplifying station with antenna testing scheme, following advantage is arranged:, and utilize the signal of wireless base station to carry out that mixing shift frequency operation principle realizes because the multi-channel wireless repeater isolation degree test that provides of the utility model does not increase the built-in signal source.Made full use of the service aisle of multi-channel wireless repeater like this, avoided of the interference of built-in signal source, reduced equipment cost, be convenient to project installation, intelligent monitoring and regular maintenance, improved communication quality multi-channel wireless repeater, wireless base station.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is traditional multi-channel wireless repeater theory diagram.
Fig. 2 is the downlink channel selector module theory diagram of traditional multi-channel wireless repeater.
Fig. 3 is the uplink channel selector module theory diagram of traditional multi-channel wireless repeater.
Fig. 4 is a multi-channel wireless of the present utility model repeater theory diagram.
Fig. 5 is the downlink channel selector module theory diagram of multi-channel wireless of the present utility model repeater.
Fig. 6 is the uplink channel selector module theory diagram of multi-channel wireless of the present utility model repeater.
[embodiment]
The utility model is mainly used in project installation, intelligent monitoring and the regular maintenance of multi-channel wireless repeater, improves the suitable frequency-selector of design in the multi-channel wireless repeater, is provided with the relevant detection circuit.Under the monitoring control circuit is handled and coordinated, finish the measurement of the isolation between donor antenna and the retransmitting antenna like this, and make its working stability or measurement data is sent to Surveillance center with just further processing of engineering staff according to the gain of measurement result adjustment multi-channel wireless repeater.
Please refer to shown in Figure 4, it is multi-channel wireless of the present utility model repeater theory diagram, its each parts are connected to: receive base station signal by donor antenna 21, through duplexer 22 signal is sent into LNA (LNA) module and amplify enough signal levels, enter separately channel selector module respectively by splitter demultiplexing signal again, filtering through channel selector, processing such as removal interference enter power amplifier (PA) module and are amplified to certain power, the built-in power-sensing circuit of power amplifier module is measured output power value simultaneously, and data are delivered to the monitoring processing unit, through mixer that multiple signals are synthetic again, through duplexer 23 signal is delivered to retransmitting antenna 24 then, finish the overlay area radiation.Equally, up link operation principle and down link operation principle are similar, and only the operating frequency difference has not just repeated here.Wherein, the power supply of each active device is provided by power supply circuits, and related detection signal, control are finished by the monitoring processing unit.
As shown in Figure 5, it is the downlink channel selector module theory diagram of multi-channel wireless of the present utility model repeater, enter the first order radio-frequency filter of down channel selector module from descending LNA module output signal, reach image signal outside the filtering work zone and deliver to the local oscillation signal LO1 mixing generation intermediate-freuqncy signal of first frequency mixer and the generation of first order PLL frequency synthesizer of phase locking, this intermediate-freuqncy signal is amplified the signal enter beyond the required working channel of intermediate-frequency filter filtering and spuious through intermediate frequency amplifier, then, be divided into two-way by splitter, one the tunnel amplifies the level of entering signal level sensitive circuit monitoring channel signal through buffer amplifier, and gives the monitoring processing unit with the level value of measuring.Another road is then sent into variable gain amplifier and is amplified (this Amplifier Gain is monitored processing unit and regulated and control), send into the local oscillation signal LO2 mixing generation radiofrequency signal that second frequency mixer and second level PLL frequency synthesizer of phase locking produce again, enter second level radio-frequency filter then, remove spurious signals such as local oscillator, enter the radio frequency driver amplifier amplification and output to down link power amplifier (PA) module.
In like manner, as shown in Figure 6, be the uplink channel selector module theory diagram of multi-channel wireless of the present utility model repeater, uplink channel selector operation principle and downlink channel selector operation principle are similar, repeat no more.
The key that the isolation of the multi-channel wireless repeater that the utility model provides is measured is to start the isolation between antennas monitoring facilities: the signal level of at first monitoring all working channel of processing unit monitoring multi-channel wireless repeater down link, select a link channel under the control of monitoring processing unit, to scan the working band of down link then, measure the signal level value of each channel simultaneously and hand over monitoring unit to handle these group data, the channel of selecting a free time then is as monitoring and controlling channels, select a channel as reference source channel and receive base station signal simultaneously, base station signal is amplified to certain power as the reference source signal, at this moment monitor the frequency of treatment circuit by the second level PLL frequency synthesizer of phase locking local oscillation signal LO2 of change down link reference source channel selector, the base station signal that receives is transformed to the frequency of monitoring and controlling channels, at this moment monitor the power-sensing circuit 25A of treatment circuit by down link reference source channel power amplifier (PA) module and measure the reference source signal output power value, monitoring and controlling channels receives reference source signal and measures through signal deteching circuit simultaneously, the level value of being surveyed is delivered to monitoring unit, these signal levels are through monitoring processing unit analog-to-digital conversion and a series of processing, finish the measurement of the isolation between donor antenna and the retransmitting antenna, monitor processing unit then and send control command, the gain of regulating the multi-channel wireless repeater makes its working stability or measurement data is sent to Surveillance center.
Claims (3)
1. multi-channel wireless repeater, comprise that a up link, a down link, have the control circuit and the multichannel active channel of Based Intelligent Control, described link all comprises same donor antenna, retransmitting antenna and two duplexers, described up link and down link respectively comprise a channel selector and a power amplifier, it is characterized in that: the channel selector of described up link and down link all has a signal incoming level testing circuit, and power amplifier then all has an ouput power detection circuit.
2. a kind of multi-channel wireless according to claim 1 repeater is characterized in that: described power amplifier then all has an ouput power detection circuit.
3. a kind of multi-channel wireless according to claim 1 and 2 repeater, it is characterized in that: the channel selector internal circuit annexation of described up link and down link is: first order radio-frequency filter and first order frequency synthesizer of phase locking all with after first frequency mixer links to each other again successively with intermediate frequency amplifier, after intermediate-frequency filter links to each other, again by splitter, be divided into two-way, one the tunnel links to each other with level sensitive circuit through buffer amplifier, another road links to each other with variable gain amplifier, again with second level frequency synthesizer of phase locking with after second frequency mixer links to each other, successively with second level radio-frequency filter, radio frequency driver amplifier links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200068917U CN201039169Y (en) | 2007-04-24 | 2007-04-24 | A multi-channel radio repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200068917U CN201039169Y (en) | 2007-04-24 | 2007-04-24 | A multi-channel radio repeater |
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| CN201039169Y true CN201039169Y (en) | 2008-03-19 |
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| CNU2007200068917U Expired - Fee Related CN201039169Y (en) | 2007-04-24 | 2007-04-24 | A multi-channel radio repeater |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023003A1 (en) * | 2009-08-25 | 2011-03-03 | Empire Technology Development Llc | Calculating antenna performance |
| CN102104402A (en) * | 2010-12-29 | 2011-06-22 | 深圳市瑞凯德科技有限公司 | Intelligent antenna system capable of amplifying gain and being monitored |
| CN102386852A (en) * | 2011-07-19 | 2012-03-21 | 芯通科技（成都）有限公司 | Method for amplifying digital multi-carrier power and power amplifier for realizing same |
| CN102684733A (en) * | 2012-05-04 | 2012-09-19 | 西安亿力通微波科技有限公司 | Dual-network bidirectional orthogonal power synthesis system |
| CN102687419A (en) * | 2009-11-06 | 2012-09-19 | 通用电气公司 | Apparatus and method for repeating communication messages in rail vehicle systems |
| CN101588212B (en) * | 2009-06-23 | 2013-05-01 | 京信通信系统（中国）有限公司 | Method and device for detecting down output power of WIMAX power amplifier |
| CN108303587A (en) * | 2017-01-12 | 2018-07-20 | 北京普源精电科技有限公司 | Improve the spectrum analyzer that bottom is made an uproar |
| CN108390702A (en) * | 2017-12-28 | 2018-08-10 | 三维通信股份有限公司 | A kind of distributing antenna system far-end unit and implementation method for supporting full frequency band |
| CN113259010A (en) * | 2021-05-20 | 2021-08-13 | 罗文松 | Optical transceiver access system based on multiple systems |
-
2007
- 2007-04-24 CN CNU2007200068917U patent/CN201039169Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101588212B (en) * | 2009-06-23 | 2013-05-01 | 京信通信系统（中国）有限公司 | Method and device for detecting down output power of WIMAX power amplifier |
| WO2011023003A1 (en) * | 2009-08-25 | 2011-03-03 | Empire Technology Development Llc | Calculating antenna performance |
| US8902111B2 (en) | 2009-08-25 | 2014-12-02 | Empire Technology Development Llc | Calculating antenna performance |
| US9026038B2 (en) | 2009-11-06 | 2015-05-05 | General Electric Company | Apparatus and method for repeating communication messages in rail vehicle system |
| CN102687419A (en) * | 2009-11-06 | 2012-09-19 | 通用电气公司 | Apparatus and method for repeating communication messages in rail vehicle systems |
| CN102104402A (en) * | 2010-12-29 | 2011-06-22 | 深圳市瑞凯德科技有限公司 | Intelligent antenna system capable of amplifying gain and being monitored |
| CN102386852A (en) * | 2011-07-19 | 2012-03-21 | 芯通科技（成都）有限公司 | Method for amplifying digital multi-carrier power and power amplifier for realizing same |
| CN102386852B (en) * | 2011-07-19 | 2015-04-29 | 成都芯通科技股份有限公司 | Method for amplifying digital multi-carrier power and power amplifier for realizing same |
| CN102684733A (en) * | 2012-05-04 | 2012-09-19 | 西安亿力通微波科技有限公司 | Dual-network bidirectional orthogonal power synthesis system |
| CN108303587A (en) * | 2017-01-12 | 2018-07-20 | 北京普源精电科技有限公司 | Improve the spectrum analyzer that bottom is made an uproar |
| CN108390702A (en) * | 2017-12-28 | 2018-08-10 | 三维通信股份有限公司 | A kind of distributing antenna system far-end unit and implementation method for supporting full frequency band |
| WO2019127859A1 (en) * | 2017-12-28 | 2019-07-04 | 三维通信股份有限公司 | Remote unit of distributed antenna system supporting full frequency band and implementation method therefor |
| CN113259010A (en) * | 2021-05-20 | 2021-08-13 | 罗文松 | Optical transceiver access system based on multiple systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN SUNNADA COMMUNICATION CO., LTD Free format text: FORMER NAME OR ADDRESS: FUJIAN SANYUANDA COMMUNICATION CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Room seven, North 1-6, building 611, industrial high tech Pioneer Park, Torch Road, Fuzhou, Fujian Province, Fujian 350003, China Patentee after: Fujian Sunnada Communication Co., Ltd. Address before: Room seven, North 1-6, building 611, industrial high tech Pioneer Park, Torch Road, Fuzhou, Fujian Province, Fujian 350003, China Patentee before: Fujian Sanyuanda Communication Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20110424 |