CN103973346A - Distributed antenna control system - Google Patents
Distributed antenna control system Download PDFInfo
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- CN103973346A CN103973346A CN201410223167.4A CN201410223167A CN103973346A CN 103973346 A CN103973346 A CN 103973346A CN 201410223167 A CN201410223167 A CN 201410223167A CN 103973346 A CN103973346 A CN 103973346A
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- antenna control
- control unit
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- spaced antenna
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Abstract
The invention discloses a distributed antenna control system. The distributed antenna control system comprises a signal receiving and transmitting unit and multiple distributed antenna control units which are arrayed in sequence for signal communication. The distributed antenna control unit which is arrayed at the first position in the distributed antenna control units is in signal communication with the signal receiving and transmitting unit. The signal receiving and transmitting unit transmits a signal to the distributed antenna control unit, and the distributed antenna control unit receives the signal transmitted by the signal receiving and transmitting unit, selects a signal transmission route, amplifies power, distributes the power and transmits the power to the next number one distributed antenna control unit. The next number one distributed antenna control unit processes the power signal in the mode and then transmits the power signal to the next number two distributed antenna control unit. The antenna control system can be connected with any one kind of monomer antennas, any number of the connected antennas can be arranged, radiant power of the antennas can be set, and all the antennas can be connected through radio-frequency cables or in a wireless mode.
Description
Technical field
The invention belongs to communication technical field, relate in particular to a kind of spaced antenna control system.
Background technology
Limited and irregular for structures such as tunnel, subway, underground parking, mine and highway, railways, or under a stable condition, need according to specific physical environment, coverage to be changed, if while carrying out radio communication in this case, just need to effectively solve the problem that radio wave covers flexibly.Use common single antenna, in the time that needs carry out flexible configuration according to environment for use to electric wave coverage, need a lot of antennas, and each antenna needs to be connected by radio frequency cable as transceiver with signal transmitting and receiving unit, and due to the attenuation characteristic of radiofrequency signal, antenna distance transceiver ground square signal far away is difficult to the covering that reaches desirable, in addition, when environment for use more severe, radio frequency cable is using, tear or the process of folding and unfolding in, also be easier to occur fault loosening or fracture, therefore, in the time that transceiver connects multiple antenna, safeguard also more difficult.
Summary of the invention
The problem existing according to prior art, the invention discloses a kind of spaced antenna control system, comprise: signal transmitting and receiving unit carries out with multiple being arranged in order the spaced antenna control unit that signal is communicated by letter, and the spaced antenna control unit ranking the first in described multiple spaced antenna control units is communicated by letter with signal transmitting and receiving cell signal;
Signal is sent to spaced antenna control unit by described signal transmitting and receiving unit, described spaced antenna control unit receives the signal that transmits described signal transmitting and receiving unit, selects signal transmission path, carry out power amplification and power division and power is sent to next spaced antenna control unit, and described next spaced antenna control unit is sent to next spaced antenna control unit after in the manner described above signal being processed.
Described spaced antenna control unit comprises the TR port of received RF signal and REOUT port and the ANT port of REIN port and output radiofrequency signal, the TR port of the described spaced antenna control unit ranking the first is connected with signal transmitting and receiving unit by radio frequency cable, the REOUT port of a upper spaced antenna control unit is connected with the REIN port of next spaced antenna control unit and carries out signal and communicate by letter, and the ANT port of each spaced antenna control unit is connected with antenna.
Described spaced antenna control unit comprises: radio-frequency (RF) switch, bidirectional power amplifier, power divider, control unit, power supply unit, frequency converter I and frequency converter II.
After described bidirectional power amplifier receives the power signal transmitting described signal transmitting and receiving unit power is amplified, power is sent to power divider carries out power division and by power along the REOUT port of spaced antenna control unit and the output of ANT port; One end of described frequency converter I other end that is connected with the REIN port of spaced antenna control unit is connected with the input of radio-frequency (RF) switch, another input of described radio-frequency (RF) switch is connected with TR port, the output of described radio-frequency (RF) switch respectively with bidirectional power amplifier be connected for the control unit of selecting power signal transmissions path, power ratio control distributor to carry out power division, described power supply unit is connected with bidirectional power amplifier, between described power divider and REOUT port, is provided with frequency converter II.
The REIN port of the spaced antenna control unit ranking the first in described multiple spaced antenna control unit being arranged in order is all connected with load with the REOUT port of the spaced antenna control unit that comes last, and the REIN port of other multiple spaced antenna control units is connected with antenna or radio frequency cable with REOUT port.
Between described spaced antenna control unit, be connected by radio frequency cable; Under wireless transmission: carry out radio communication by antenna between described spaced antenna control unit.
When the ANT port of described spaced antenna control unit is connected with antenna, this antenna adopts directional antenna and omnidirectional antenna.
Owing to having adopted technique scheme, a kind of spaced antenna control system disclosed by the invention, this antenna control system can connect any one single antenna, the quantity that connects antenna can be any number of, the radiant power of antenna can arrange, and between each antenna, can utilize radio frequency cable, connect by wired or wireless mode.This spaced antenna control system can effectively solve the flexible covering problem of wireless signal in various specific physical environment.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the present invention's spaced antenna control system under wire transmission;
Fig. 2 is the structural representation of the present invention's spaced antenna control system under wireless transmission;
Fig. 3 is the structural representation of spaced antenna control unit in the present invention.
In figure: 1, radio-frequency (RF) switch; 2, bidirectional power amplifier; 3, power divider; 4, control unit; 5, power supply unit; 6, frequency converter I; 7, frequency converter II; 10, spaced antenna control unit; 11, signal transmitting and receiving unit.
Embodiment
For making technical scheme of the present invention and advantage clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is known to complete description:
Spaced antenna control system as shown in Figure 1 comprises signal transmitting and receiving unit 11 and multiple spaced antenna control unit 10, and multiple spaced antenna control units 10 are arranged in order and carry out signal communication.The spaced antenna control unit 10 ranking the first in multiple spaced antenna control units 10 is communicated by letter by radio frequency cable signal with signal transmitting and receiving unit 11.
Under operating state: power signal is sent to spaced antenna control unit 10 by signal transmitting and receiving unit 11, spaced antenna control unit 10 receives the power signal that transmits described signal transmitting and receiving unit 11, selects signal transmission path, carries out power amplification and power division and power is sent to next spaced antenna control unit 10, and described next spaced antenna control unit 10 is sent to next spaced antenna control unit 10 after in the manner described above power signal being processed.On spaced antenna control unit 10, can match corresponding single antenna, radio frequency cable and load.In practical application, the characteristic impedance of radio frequency cable and matched load can be 50 ohm.
As Fig. 1, shown in Fig. 2 and Fig. 3, spaced antenna control unit 10 comprises 4 ports, TR port, REIN port, REOUT port and ANT port, the input port that TR port and REIN port are radiofrequency signal, the output port that REOUT port and ANT port are radiofrequency signal, the TR port of the spaced antenna control unit 10 ranking the first is connected with signal transmitting and receiving unit 11 by radio frequency cable, the REOUT port of a upper spaced antenna control unit 10 is connected with the REIN port of next spaced antenna control unit 10 and carries out signal and communicate by letter, the ANT port of each spaced antenna control unit 10 is connected with antenna.
Further, as shown in Figure 3, spaced antenna control unit 10 comprises radio-frequency (RF) switch 1, bidirectional power amplifier 2, power divider 3, control unit 4, power supply unit 5, frequency converter I6 and frequency converter II7.The input of bidirectional power amplifier 2 is connected with radio-frequency (RF) switch 1, output is connected with power divider 3, after described bidirectional power amplifier 2 receives the power signal transmitting described signal transmitting and receiving unit 11 power is amplified, power is sent to power divider 3 carries out power division and REOUT port and the output of ANT port along spaced antenna control unit 10 by power.One end of described frequency converter I6 other end that is connected with REIN port is connected with the input of radio-frequency (RF) switch 1, another input of described radio-frequency (RF) switch 1 is connected with the TR port of this spaced antenna control unit 10, the output of described radio-frequency (RF) switch 1 respectively with bidirectional power amplifier 2 be connected for the control unit 4 of selecting power signal transmissions path, power ratio control distributor 3 to carry out power division, described power supply unit 5 is connected with bidirectional power amplifier 2, between described power divider 3 and REOUT port, is provided with frequency converter II7.
Further, the REIN port of the spaced antenna control unit 10 ranking the first in multiple spaced antenna control units 10 that are arranged in order is all connected with load with the REOUT port of the spaced antenna control unit 10 that comes last, and other the REIN port that comes middle multiple spaced antenna control units 10 is connected with antenna or radio frequency cable with REOUT port.
Further, under wire transmission: be connected by radio frequency cable between spaced antenna control unit 10; Under wireless transmission: carry out radio communication by wireless antenna between spaced antenna control unit 10.All spaced antenna control units 10 need not connect radio frequency cable, can independently place.
Further, when the ANT port of described spaced antenna control unit 10 is connected with antenna, this antenna adopts directional antenna and omnidirectional antenna, and the signal of realizing working region covers.
Spaced antenna control system is that operation principle under wire transmission pattern and wireless communication mode is at two kinds:
Having under ray mode, as shown in Figure 1: the TR port of the spaced antenna control unit 10 nearest with signal source is connected signal transmitting and receiving machine by radio frequency cable, and (in practical application, signal transmitting and receiving unit 11 can be signal transmitting and receiving machine, ) signal process of transmitting is: signal enters spaced antenna control unit 10 through port TR, control radio-frequency (RF) switch 1 and realize path selection, thereby pilot signal transfers to power divider 3 through bidirectional power amplifier 2, transfer to respectively REOUT port and ANT port through power division, ANT port connects antenna, signal amplitude is shot out, REOUT port is connected with the REIN port of next spaced antenna control unit 10 through radio frequency cable by frequency converter II7, signal receiving course is: ANT port receives signal, enter bidirectional power amplifier 2 through power divider 3, control radio-frequency (RF) switch 1, pilot signal enters TR port or REIN port, TR port transfers to signal transmitting and receiving machine through radio frequency cable by signal after receiving signal, after REIN port receives signal, by frequency converter I6, by signal by transmit by RF cable the REOUT port to other spaced antenna control units 10.
Under wireless mode, as shown in Figure 2: the TR port of the spaced antenna control unit 10 nearest with signal source is connected signal transmitting and receiving machine by radio frequency cable, the load of REIN port matching connection, come the also matching connection load of REOUT port of last spaced antenna control unit 10, the REIN port of remaining spaced antenna control unit 10 is all connected antenna with REOUT port, signal process of transmitting is: signal transmitting and receiving machine transmitted signal, by transmit by RF cable to TR port, control radio-frequency (RF) switch 1, pilot signal is by bidirectional power amplifier 2, then pass through power divider 3, transfer to respectively REOUT port and ANT port, REOUT port is by frequency converter II7, through antenna, repeating signal is launched, and transfer to the REIN port of other spaced antenna control units 10, ANT port connects antenna, signal amplitude is incident upon to overlay area, signal receiving course is: ANT port receives signal, through power divider 3 and bidirectional power amplifier 2, control radio-frequency (RF) switch 1, pilot signal enters TR port or REIN port, TR port transfers to signal transmitting and receiving machine through radio frequency cable by signal after receiving signal, after REIN port receives signal, by frequency converter I6, by signal by antenna transmission to the REOUT port of next spaced antenna control unit 10.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. a spaced antenna control system, it is characterized in that comprising: signal transmitting and receiving unit (11) carry out with multiple being arranged in order the spaced antenna control unit (10) that signal is communicated by letter, and the spaced antenna control unit (10) ranking the first in described multiple spaced antenna control units (10) is communicated by letter with signal transmitting and receiving unit (11) signal;
Signal is sent to spaced antenna control unit (10) by described signal transmitting and receiving unit (11), described spaced antenna control unit (10) receives the signal that transmits described signal transmitting and receiving unit (11), selects signal transmission path, carry out power amplification and power division and power is sent to next spaced antenna control unit (10), and described next spaced antenna control unit (10) is sent to next spaced antenna control unit (10) after in the manner described above signal being processed;
Described spaced antenna control unit (10) comprises TR port and the REIN port of received RF signal, and REOUT port and the ANT port of output radiofrequency signal, the TR port of the described spaced antenna control unit (10) ranking the first is connected with signal transmitting and receiving unit (11) by radio frequency cable, multiple REOUT ports that are arranged in order a upper spaced antenna control unit (10) that carries out signal communication are connected and carry out signal communication with the REIN port of next spaced antenna control unit (10), the ANT port of described spaced antenna control unit (10) is all connected with antenna.
2. a kind of spaced antenna control system according to claim 1, is further characterized in that: described spaced antenna control unit (10) comprising: radio-frequency (RF) switch (1), bidirectional power amplifier (2), power divider (3), control unit (4), power supply unit (5), frequency converter I (6) and frequency converter II (7);
After described bidirectional power amplifier (2) receives the power signal transmitting described signal transmitting and receiving unit (11) power is amplified, power is sent to power divider (3) carries out power division and by power along the REOUT port of spaced antenna control unit (10) and the output of ANT port, one end of described frequency converter I (6) other end that is connected with the REIN port of spaced antenna control unit (10) is connected with the input of radio-frequency (RF) switch (1), another input of described radio-frequency (RF) switch (1) is connected with TR port, the output of described radio-frequency (RF) switch (1) is respectively with bidirectional power amplifier (2) with for selecting power signal transmissions path, the control unit (4) that power ratio control distributor (3) carries out power division is connected, described power supply unit (5) is connected with bidirectional power amplifier (2), between described power divider (3) and REOUT port, be provided with frequency converter II (7).
3. a kind of spaced antenna control system according to claim 1, the REIN port that is further characterized in that the spaced antenna control unit (10) ranking the first in described multiple spaced antenna control unit (10) being arranged in order is connected with load with the REOUT port of the spaced antenna control unit (10) that comes last, and the REIN port of other multiple spaced antenna control units (10) is connected with antenna or radio frequency cable with REOUT port.
4. a kind of spaced antenna control system according to claim 1, is further characterized in that: under wire transmission: between described spaced antenna control unit (10), be connected by radio frequency cable; Under wireless transmission: carry out radio communication by antenna between described spaced antenna control unit (10).
5. a kind of spaced antenna control system according to claim 1, is further characterized in that: when the ANT port of described spaced antenna control unit (10) is connected with antenna, this antenna adopts directional antenna and omnidirectional antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223167.4A CN103973346B (en) | 2014-05-23 | 2014-05-23 | A kind of spaced antenna control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223167.4A CN103973346B (en) | 2014-05-23 | 2014-05-23 | A kind of spaced antenna control system |
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| Publication Number | Publication Date |
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| CN103973346A true CN103973346A (en) | 2014-08-06 |
| CN103973346B CN103973346B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410223167.4A Active CN103973346B (en) | 2014-05-23 | 2014-05-23 | A kind of spaced antenna control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110278011A (en) * | 2019-06-12 | 2019-09-24 | 京信通信系统（中国）有限公司 | Distributing antenna system, method and apparatus |
| WO2021223121A1 (en) * | 2020-05-06 | 2021-11-11 | 深圳市大疆创新科技有限公司 | Bidirectional multi-frequency amplifier, transceiver, control method and storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203156B (en) * | 2019-05-31 | 2021-10-22 | 大陆汽车电子(长春)有限公司 | Distributed wireless vehicle body control system |
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| CN102077683A (en) * | 2008-04-25 | 2011-05-25 | 诺基亚西门子通信公司 | Distributed antenna system in a communication network |
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| US20100189170A1 (en) * | 2009-01-27 | 2010-07-29 | Adc Telecommunications, Inc. | Method and apparatus for digitally equalizing a signal in a distributed antenna system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110278011A (en) * | 2019-06-12 | 2019-09-24 | 京信通信系统（中国）有限公司 | Distributing antenna system, method and apparatus |
| CN110278011B (en) * | 2019-06-12 | 2021-04-27 | 京信通信系统（中国）有限公司 | Distributed antenna system, method and apparatus |
| EP3986011A4 (en) * | 2019-06-12 | 2022-08-17 | Comba Network Systems Company Limited | Distributed antenna system, method and apparatus |
| US11923905B2 (en) | 2019-06-12 | 2024-03-05 | Comba Network Systems Company Limited | Distributed antenna system, method and apparatus |
| WO2021223121A1 (en) * | 2020-05-06 | 2021-11-11 | 深圳市大疆创新科技有限公司 | Bidirectional multi-frequency amplifier, transceiver, control method and storage medium |
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| Publication number | Publication date |
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| CN103973346B (en) | 2017-03-15 |
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