CN104639216A - Electrically tilting antenna - Google Patents
Electrically tilting antenna Download PDFInfo
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- CN104639216A CN104639216A CN201310549192.7A CN201310549192A CN104639216A CN 104639216 A CN104639216 A CN 104639216A CN 201310549192 A CN201310549192 A CN 201310549192A CN 104639216 A CN104639216 A CN 104639216A
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Abstract
The present invention provides an electrically tilting antenna, relates to the field of communication, and solves the problem that the antenna designs are not perfect in the prior art. The electrically tilting antenna comprises: a phase shifting unit for sending a received signal after adjusting the signal in a preset phase; and at least one antenna array connected with the phase shifting unit and used for receiving and transmitting the signal sent from the phase shifting unit. The electrically tilting antenna further comprises: a signal splitting and combining unit connected with a base station and the phase shifting unit and used for splitting a double-system signal sent from the base station into two single-system signals and sending the two single-system signals to the phase shifting unit. The scheme in the present invention not only supports two systems to share one base station equipment of a radio-frequency unit, but also enables independent electrical tilting for two system signals.
Description
Technical field
The present invention relates to the communications field, particularly a kind of electrical tilt antenna.
Background technology
The technic relization scheme of existing multisystem collective antenna mainly contains following four kinds:
Prior art one: as shown in Figure 1, A, B two base station systems, after closing road by outside mixer, be linked in dual-band antenna by same antennal interface and go, the wireless signal of two systems is emitted by identical antenna beam.
Prior art two: as shown in Figure 2, A, B two base station systems, are linked in dual-band antenna by the distinct interface of same antenna and go, and signal does not all carry out any conjunction road in inside and outside, and the wireless signal of two systems is emitted by different antenna beams.
Prior art three: as shown in Figure 3, A, B two base station systems, be linked in dual-band antenna by the distinct interface of same antenna and go, two paths of signals synthesizes a road signal by built-in mixer, and the wireless signal of two systems is emitted by same antenna beam.
Prior art four: as shown in Figure 4, A, B two base station systems, shared radio frequency unit, is linked in dual-band antenna by same antennal interface and goes, and the wireless signal of two systems is emitted by same antenna beam.
The shortcoming of above-mentioned four kinds of prior art mainly contains following two:
1. cannot adapt to the base station equipment of A, B two system shared radio frequency unit.
Along with the development of the communication technology and hardware manufacturing level; increasing communication system can by last generation equipment smooth upgrade mode realize; the benefit brought like this is not only can the effective storage life of extension device; the cost of investment of protection operator; and the quantities that equipment is replaced can be greatly reduced; save engineered expense, and greatly can reduce the cooperation demand of owner, avoid frequently the engineered owner caused misread and obstruct.Such as the F-band of time-division long evolving system TD-LTE realizes at present, just can be realized by the smooth upgrade of existing time-division TD equipment, when adopting F-band to build TD-LTE, TD-LTE and TDS-CDMA system TD-S can shared radio frequency unit (RRU) and FA dual-band antenna completely, in this way, any transformation can not be carried out substantially in former base station, quantities is down to minimum.
But can be found out by the above-mentioned description to four kinds of existing implementations, current first does not all support the base station equipment of A, B two system shared radio frequency unit to the third mode.The 4th kind of mode is only had to support.
2. the independent electricity that cannot realize A, B two system wireless signals is adjusted.
Antenna is positioned at wireless communication system foremost, and the quality for whole wireless network has vital effect.The use frequency range of different wireless communication system is different; propagation characteristic, the penetration performance of its radio wave signal are widely different; and operator is when carrying out different wireless networks and building; usually different networking strategy can be adopted; therefore different wireless communication systems, the base station system just at last on same site, its coverage goal, signal strength signal intensity require also all have difference; therefore, need to arrange different network parameters respectively.
The downwards bevel beam of antenna is the important parameter of antenna, can be regulated the coverage of mobile communication base station system by the downwards bevel beam adjusting antenna.Along with Multi net voting works in coordination with the continuous lifting of construction and the networking requirement that becomes more meticulous, different wireless systems can arrange different antenna beam downtilt angles respectively becomes necessary.
In current first, the 4th kind of mode, only have a road signal input antenna, existing technology cannot realize independent electricity and adjust.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electrical tilt antenna, can support the base station equipment of two system shared radio frequency unit, can realize again adjusting the independent electricity of two system signals.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of electrical tilt antenna, comprise for the phase-shifting unit that sends after the signal of reception is regulated by preset phase, and at least one aerial array to be connected with described phase-shifting unit, described aerial array, for receiving and launching the signal that described phase-shifting unit sends, also comprises:
The signal combiner unit be connected respectively with base station and described phase-shifting unit, becomes two-way single system signal for the road dual system Signal separator sent described base station, and described two-way single system signal is sent to described phase-shifting unit.
Wherein, above-mentioned electrical tilt antenna also comprises:
The remote control unit RCU be connected with described phase-shifting unit, for driving described phase-shifting unit to carry out phase adjusted, and controls the value of described preset phase.
Wherein, described RCU comprises:
Motor, carries out phase adjusted for driving described phase-shifting unit;
The controller be connected with described motor, for controlling the value of described preset phase.
Wherein, described aerial array comprises at least one antenna array radiation unit
Wherein, described signal combiner unit comprises:
Combiner device, for becoming two-way dual system signal by a described road dual system Signal separator;
Two filters be connected with described combiner device, send to described phase-shifting unit after the signal filtering of described two-way dual system is become described two-way single system signal.
Wherein, at least two mixers that described phase-shifting unit comprises two phase shift subelements, be connected respectively with described two phase shift subelements and the first splitter connected one to one with described mixer, the second splitter that wherein said phase shift subelement comprises at least one phase shifter and connects one to one with described phase shifter.
Wherein, the signal that described terminal sends also for the two-way single system signal that receiving terminal sends, and is sent to described phase-shifting unit by described aerial array;
The two-way single system signal of described signal combiner unit also for being sent by described phase-shifting unit is merged into a road dual system signal and sends to described base station.
Wherein, described combiner device is also for being merged into a described road dual system signal by described two-way single system signal.
The beneficial effect of technique scheme of the present invention is as follows:
The electrical tilt antenna of the embodiment of the present invention, the road dual system Signal separator first sent base station by signal combiner unit becomes two-way single system signal, and two-way single system signal is sent to phase-shifting unit, after phase-shifting unit regulates by preset phase, send at least one aerial array be connected with phase-shifting unit again, finally by aerial array, the signal received is launched.The base station equipment of two system shared radio frequency unit can be supported, can realize again adjusting the independent electricity of two system signals.
Accompanying drawing explanation
Fig. 1 is prior art one schematic diagram;
Fig. 2 is prior art two schematic diagram;
Fig. 3 is prior art three schematic diagram;
Fig. 4 is prior art four schematic diagram;
Fig. 5 is the structural representation of a base station system in prior art;
Fig. 6 is the structural representation of electrical tilt antenna of the present invention;
Fig. 7 is the structural representation of electrical tilt antenna one specific embodiment of the present invention;
Fig. 8 is the detailed structure view of electrical tilt antenna one specific embodiment of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 5, in prior art, base station system is made up of Base Band Unit and radio frequency unit, base station is connected with antenna, received by antenna and launch mobile communication signal, wherein, the downwards bevel beam of antenna is the important parameter of antenna, can be regulated the coverage of base station system by the downwards bevel beam adjusting antenna.According to the difference realizing antenna downtilt mode, the antenna be connected with base station can be divided into: mechanical tilt antenna, preset electrical tilt antenna and electrical tilt antenna.
Embodiments of the invention provide a kind of electrical tilt antenna, can support the base station equipment of two system shared radio frequency unit, can realize again adjusting the independent electricity of two system signals.
As shown in Figure 6, the electrical tilt antenna of the embodiment of the present invention, comprise for the phase-shifting unit that sends after the signal of reception is regulated by preset phase, and at least one aerial array to be connected with described phase-shifting unit, described aerial array, for receiving and launching the signal that described phase-shifting unit sends, also comprises:
The signal combiner unit be connected respectively with base station and described phase-shifting unit, becomes two-way single system signal for the road dual system Signal separator sent described base station, and described two-way single system signal is sent to described phase-shifting unit.
The electrical tilt antenna of the embodiment of the present invention, the road dual system Signal separator first sent base station by signal combiner unit becomes two-way single system signal, and two-way single system signal is sent to phase-shifting unit, after phase-shifting unit regulates by preset phase, send at least one aerial array be connected with phase-shifting unit again, finally by aerial array, the signal received is launched.The base station equipment of two system shared radio frequency unit can be supported, can realize again adjusting the independent electricity of two system signals.
Wherein, the electrical tilt antenna of the embodiment of the present invention can also comprise:
The remote control unit RCU be connected with described phase-shifting unit, for driving described phase-shifting unit to carry out phase adjusted, and controls the value of described preset phase.
Now, realize the Long-distance Control effect to phase-shifting unit by RCU, thus realize the adjustment to antenna beam downtilt, simple to operate, and carry out conveniently.
Concrete, described RCU comprises:
Motor, carries out phase adjusted for driving described phase-shifting unit;
The controller be connected with described motor, for controlling the value of described preset phase.
Now, carry out phase adjusted by driven by motor phase-shifting unit, then control the value of preset phase by controller, just can realize the adjustment to antenna beam downtilt, simple to operate, and realize conveniently.
Wherein, described aerial array comprises at least one antenna array radiation unit.
Now, aerial array is received by antenna array radiation unit, is transmitted.
A kind of specific embodiment, as shown in Figure 7, the road dual system Signal separator that base station sends by the signal combiner unit be connected with base station becomes two-way single system signal, and send two-way single system signal to phase-shifting unit, phase-shifting unit sends to M aerial array after two-way single system signal is carried out phase adjusted respectively, wherein each aerial array comprises N number of antenna array radiation unit, further, the Long-distance Control to phase-shifting unit can be realized by the RCU be connected with phase-shifting unit, concrete, phase adjusted is carried out by driven by motor phase-shifting unit, the value of preset phase is controlled again by controller, just can realize the adjustment to antenna beam downtilt.Thus support the base station equipment of two system shared radio frequency unit, realize adjusting the independent electricity of two system signals.
In specific embodiments of the invention, described signal combiner unit comprises:
Combiner device, for becoming two-way dual system signal by a described road dual system Signal separator;
Two filters be connected with described combiner device, send to described phase-shifting unit after the signal filtering of described two-way dual system is become described two-way single system signal.
Now, by the effect of combiner device and two filters, a road dual system Signal separator that just base station can be sent becomes two-way single system signal, realizes adjusting the independent electricity of two system signals.
Wherein, at least two mixers that described phase-shifting unit comprises two phase shift subelements, be connected respectively with described two phase shift subelements and the first splitter connected one to one with described mixer, the second splitter that wherein said phase shift subelement comprises at least one phase shifter and connects one to one with described phase shifter.
Now, two-way single system signal carries out phase adjusted respectively by two phase shift subelements, thus realizes adjusting the independent electricity of two system signals.
Specific embodiments of the invention are illustrated as follows below.
As shown in Figure 8, signal combiner unit is made up of combiner device S1 and two filter F1, F2,5 mixer D that phase-shifting unit comprises two phase shift subelements, be connected respectively with two phase shift subelements and 5 the first splitter S21 connected one to one with mixer D, wherein each phase shift subelement 4 the second splitter S22 comprising 4 phase shifter P respectively and connect one to one with phase shifter P, aerial array is made up of 10 antenna array radiation unit.
Send a road by base station and comprise the signal of two system A and B to signal combiner unit, wherein, system A is TDS-CDMA system TD-SCDMA, be operated in 2010-2025 megahertz frequency range, system B is time-division long evolving system TD-LTE, be operated in 1880-1920 megahertz frequency range, the road dual system Signal separator received first is become two-way dual system signal by the combiner device S1 in signal combiner unit, through F1 with F2, the signal filtering of two-way dual system is become two-way single system signal and sends to phase-shifting unit again, wherein, F1 extraction system a-signal, F2 extraction system B signal, in phase-shifting unit, system a-signal and system B signal are respectively through the phase shifter P in two phase shift subelements and the second splitter S22 effect, be divided into the 5 way signals with fixed skew separately, aerial array is sent to again after mixer D and the first splitter S21 effect, launched by the antenna array radiation unit in aerial array.Wherein, in phase-shifting unit, two phase shift subelements are separate, can be regulated respectively the preset phase of the phase shifter P in two phase shift subelements by RCU, thus the subsignal of control system A or B arrives the phase difference of antenna array radiation unit, reach the object of control antenna downwards bevel beam, realize adjusting the independent electricity of two system signals, support the base station equipment of two system shared radio frequency unit.
Concrete, the motor in RCU can drive the phase shifter P in phase-shifting unit to move by transmission device as Power Drive Unit, thus realizes the adjustment of antenna beam downtilt.
In specific embodiments of the invention, the signal that described terminal sends also for the two-way single system signal that receiving terminal sends, and is sent to described phase-shifting unit by described aerial array;
The two-way single system signal of described signal combiner unit also for being sent by described phase-shifting unit is merged into a road dual system signal and sends to described base station.
Now, the two-way single system signal that terminal sends becomes a road dual system signal by signal combiner mesh merging and feeds back to base station, makes the smooth receiving terminal feedack in base station.
Concrete, described combiner device is also for being merged into a described road dual system signal by described two-way single system signal.
It should be noted that, the electrical tilt antenna of the embodiment of the present invention has carried out Signal separator to the road dual system signal that base station sends, and Signal separator can carry out power shunt and filtering to signal, certain loss is had to signal, and inner antenna is difficult to carry out power back-off, therefore the coverage distance of mobile communication base station is had a certain impact.
For the problems referred to above, the electrical tilt antenna of the embodiment of the present invention be applicable to need in city to carry out to become more meticulous constructions, to the exigent region of independent electricity tune, usual website, this kind of region spacing is smaller, less demanding to descending power, and the loss of signal can not cause too large impact to covering.
The electrical tilt antenna of the embodiment of the present invention; the base station equipment of two system shared radio frequency unit can be adapted to; for the online equipment being supported multisystem by smooth upgrade mode; the interface of radio frequency unit and antenna and connected mode is not needed to carry out any transformation; can the effective storage life of available protecting existing network equipment; the cost of investment of protection operator, and the quantities of equipment replacement can be greatly reduced, save engineered expense.
The electrical tilt antenna of the embodiment of the present invention, can support the base station equipment of two system shared radio frequency unit, can realize again adjusting the independent electricity of two system signals.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. an electrical tilt antenna, comprise for the phase-shifting unit that sends after being regulated by preset phase by the signal of reception, and at least one aerial array be connected with described phase-shifting unit, described aerial array is for receiving and launching the signal that described phase-shifting unit sends, it is characterized in that, also comprise:
The signal combiner unit be connected respectively with base station and described phase-shifting unit, becomes two-way single system signal for the road dual system Signal separator sent described base station, and described two-way single system signal is sent to described phase-shifting unit.
2. electrical tilt antenna according to claim 1, is characterized in that, also comprises:
The remote control unit RCU be connected with described phase-shifting unit, for driving described phase-shifting unit to carry out phase adjusted, and controls the value of described preset phase.
3. electrical tilt antenna according to claim 2, is characterized in that, described RCU comprises:
Motor, carries out phase adjusted for driving described phase-shifting unit;
The controller be connected with described motor, for controlling the value of described preset phase.
4. electrical tilt antenna according to claim 1, is characterized in that, described aerial array comprises at least one antenna array radiation unit.
5. electrical tilt antenna according to claim 1, is characterized in that, described signal combiner unit comprises:
Combiner device, for becoming two-way dual system signal by a described road dual system Signal separator;
Two filters be connected with described combiner device, send to described phase-shifting unit after the signal filtering of described two-way dual system is become described two-way single system signal.
6. electrical tilt antenna according to claim 1, it is characterized in that, at least two mixers that described phase-shifting unit comprises two phase shift subelements, be connected respectively with described two phase shift subelements and the first splitter connected one to one with described mixer, the second splitter that wherein said phase shift subelement comprises at least one phase shifter and connects one to one with described phase shifter.
7. electrical tilt antenna according to claim 5, is characterized in that, the signal that described terminal sends also for the two-way single system signal that receiving terminal sends, and is sent to described phase-shifting unit by described aerial array;
The two-way single system signal of described signal combiner unit also for being sent by described phase-shifting unit is merged into a road dual system signal and sends to described base station.
8. electrical tilt antenna according to claim 7, is characterized in that, described combiner device is also for being merged into a described road dual system signal by described two-way single system signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549192.7A CN104639216B (en) | 2013-11-07 | 2013-11-07 | A kind of electrical tilt antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310549192.7A CN104639216B (en) | 2013-11-07 | 2013-11-07 | A kind of electrical tilt antenna |
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| CN104639216A true CN104639216A (en) | 2015-05-20 |
| CN104639216B CN104639216B (en) | 2018-12-04 |
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| CN201310549192.7A Active CN104639216B (en) | 2013-11-07 | 2013-11-07 | A kind of electrical tilt antenna |
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| CN105762535A (en) * | 2016-04-15 | 2016-07-13 | 武汉虹信通信技术有限责任公司 | Dual system independent downward inclination angle adjustment base station electrically-controlled antenna |
| CN107615586A (en) * | 2015-05-26 | 2018-01-19 | 华为技术有限公司 | A kind of electric-regulating device, antenna and electric tune method |
| CN114616759A (en) * | 2019-10-17 | 2022-06-10 | 三星电子株式会社 | Apparatus and method for transmitting and receiving signals in multiple frequency bands in wireless communication system |
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| CN104639216B (en) | 2018-12-04 |
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