CN102780522B - A kind of aerial array, based on the communication system of this aerial array and communication means - Google Patents
A kind of aerial array, based on the communication system of this aerial array and communication means Download PDFInfo
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- CN102780522B CN102780522B CN201110122325.3A CN201110122325A CN102780522B CN 102780522 B CN102780522 B CN 102780522B CN 201110122325 A CN201110122325 A CN 201110122325A CN 102780522 B CN102780522 B CN 102780522B
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Abstract
The invention discloses a kind of aerial array, based on the communication system of this aerial array and communication means, this aerial array comprises two antenna array tuples, wherein, each bay group comprises respectively and forms three bays of equilateral triangle position relationship and the spacing between each bay is less than a signal wavelength; Each bay in described two antenna array tuples adopts dual polarization mode to polarize respectively, and the bay in same antenna array tuple adopts identical polarization mode to polarize, the bay in different antenna element group adopts orthogonal polarization mode to polarize.Adopt this technical scheme, MIMO technology and intelligent antenna technology can be supported simultaneously, thus improve data transmission efficiency and the power system capacity of communication system.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of aerial array, based on the communication system of this aerial array and communication means.
Background technology
Existing intelligent antenna array is mainly divided into omnidirectional intelligent aerial array and directive intelligent antenna array, directional intelligent antenna because of its single array element gain comparatively large, business beam is more sharp-pointed, more easily the advantage such as point sector networking and being more widely used.Simultaneously in order to obtain better figuration effect, ensure the correlation of signal between bay, the distance general control between bay transmits about wavelength 1/2 as far as possible.
And MIMO (Multiple-Input Multiple-Out-put, multiple-input and multiple-output) technology is the key technology of Long Term Evolution (LTE) and backward system, by using independently space channel, improve the capacity of system most possibly.Due to non-correlation between each array element signal of MIMO technical requirement, therefore, the spacing between bay should be large as much as possible, ensures the independence of each array element signal.
The core of MIMO technology is spatial temporal signal processing, namely utilizes multiple time-domain of distributing in space and spatial domain to combine and carries out signal transacting.Therefore, MIMO technology can be regarded as the expansion of smart antenna.Smart antenna is also referred to as adaptive antenna usually, has been mainly used in space filtering and location.Inherently see, the position relationship in smart antenna aerial array between each unit, namely make use of the phase relation of signal, and this is the essential distinction of it and conventional diversity technology.
Based on above analysis, the similarities and differences comparing these two kinds of technology can be found out, the major obstacle that MIMO and intelligent antenna technology coexist is antenna structure: smart antenna requires that antenna distance gets 1/2 signal wavelength; And MIMO requires that the spacing between bay should be large as much as possible, and only for mimo system.And MIMO technology is the direction of future communication systems development, should consider the evolution issues of antenna system to this technology, antenna belongs to a part for communication system, and antenna technology must obey the direction of system evolved and development.MIMO technology can increase the capacity of wireless communication system greatly, and effectively improves the performance of wireless communication system, is applicable to very much the requirement to high-rate service in future mobile communication system.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of aerial array, based on the communication system of this aerial array and communication means, adopt this technical scheme, MIMO technology and intelligent antenna technology can be supported simultaneously, thus improve data transmission efficiency and the power system capacity of communication system.
The embodiment of the present invention is achieved through the following technical solutions:
According to an aspect of the embodiment of the present invention, provide a kind of aerial array, comprising:
Two antenna array tuples, wherein, each bay group comprises three bays of formation equilateral triangle position relationship respectively and the spacing between each bay is less than a signal wavelength;
Each bay in described two antenna array tuples adopts dual polarization mode to polarize respectively, and the bay in same antenna array tuple adopts identical polarization mode to polarize, the bay in different antenna element group adopts orthogonal polarization mode to polarize.
According to another aspect of the embodiment of the present invention, additionally provide a kind of communication system, comprise above-mentioned aerial array.
According to another aspect of the embodiment of the present invention, additionally provide a kind of communication means, be applied to above-mentioned communication system, comprise:
Each bay in the first day linear array tuple that aerial array comprises receives employing first polarization mode respectively and carries out polarizing the signal after processing; And
Each bay in the second antenna array tuple that described aerial array comprises receives employing second polarization mode respectively and carries out polarizing the signal after processing, and described second polarization mode and described first polarization mode are orthogonal polarization mode;
Each bay in each bay in described first day linear array tuple and described second antenna array tuple adopts the described signal of intelligent antenna technology launch and accept respectively.
By the aerial array that the embodiment of the present invention provides, bay is divided into two antenna array tuples, each bay group comprises three bays of formation equilateral triangle position relationship respectively and the spacing between each bay is less than a signal wavelength, to meet the requirement of intelligent antenna technology to the correlation of signal between bay; And, each bay in two antenna array tuples adopts identical polarization mode to polarize, bay in different antenna element group adopts orthogonal polarization mode to polarize, thus polarized by orthogonal polarization mode between group, to meet the requirement of MIMO to non-correlation between array element signal, thus MIMO technology and intelligent antenna technology can be supported.
The communication system that the aerial array based on said structure provided by the embodiment of the present invention is realized and communication means, because this smart antenna can support MIMO technology and intelligent antenna technology, therefore the advantage of MIMO technology and intelligent antenna technology has been annexed, improve data transmission efficiency and the power system capacity of communication system, and be adapted to the requirement to high-rate service in future mobile communication system.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, is not construed as limiting the invention with the embodiment of the present invention one.In the accompanying drawings:
The structural representation one of the aerial array that Fig. 1 provides for the embodiment of the present invention one;
The structural representation two of the aerial array that Fig. 2 provides for the embodiment of the present invention one;
The structural representation three of the aerial array that Fig. 3 provides for the embodiment of the present invention one;
The schematic flow sheet realizing communication based on the aerial array shown in Fig. 1 that Fig. 4 provides for the embodiment of the present invention two;
The schematic flow sheet realizing communication based on the aerial array shown in Fig. 3 that Fig. 5 provides for the embodiment of the present invention two.
Embodiment
In order to provide the implementation supporting MIMO technology and intelligent antenna technology simultaneously, embodiments provide a kind of aerial array, based on the communication system of this aerial array and communication means, adopt this technical scheme, MIMO technology and intelligent antenna technology can be supported simultaneously, thus improve data transmission efficiency and the power system capacity of communication system.
Below in conjunction with Figure of description, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment one
The embodiment of the present invention one provides a kind of aerial array, and this aerial array can support MIMO technology and intelligent antenna technology simultaneously.
Fig. 1 shows the structural representation of the aerial array that the embodiment of the present invention one provides.As shown in Figure 1, this aerial array comprises first day linear array tuple 101 and the second antenna array tuple 102, the structure of this first day linear array tuple 101 and the second antenna array tuple 102 is identical, and namely each bay group comprises three bays forming equilateral triangle position relationship respectively.Particularly, and the spacing between each bay is the spacing that intelligent antenna technology requires, is namely less than a signal wavelength, such as, preferably, this spacing can be chosen and be greater than 1/3rd signal wavelengths and be less than three/binary signal wavelength, need according to concrete aerial array situation and determine, antenna spacing is excessive, can reduce the correlation between signal, the spacing between bay is too small, causes unnecessary lobe by directional diagram, preferably, this spacing can be chosen for 1/2 signal wavelength; Spacing between first day linear array tuple 101 and the second antenna array tuple can set according to actual needs flexibly, such as, the spacing of MIMO technical requirement can be set as, namely the setting multiple that this spacing equals signal wavelength is set, such as, this spacing equals 1 signal wavelength.Preferably, in order to reduce the area of aerial array, the embodiment of the present invention can also set spacing between first day linear array tuple 101 and the second antenna array tuple 102 as being greater than 1/2 signal wavelength and being less than 1 signal wavelength, because the embodiment of the present invention realizes the uncorrelated of signal between antenna array tuple by the orthogonal polarization between electric wire array element group, therefore, spacing between first day linear array tuple 101 and the second antenna array tuple 102 get be greater than 1/2 signal wavelength and be less than 1 signal wavelength time, also MIMO technology can be met to the incoherent requirement of signal, and can by reducing antenna lateral dimension to reach the object reducing windage.
Further, in order to meet the requirement of intelligent antenna technology to the correlation of signal between bay better, and meet the requirement of MIMO to non-correlation between array element signal, in the embodiment of the present invention one, in the aerial array that Fig. 1 provides, each bay in first day linear array tuple 101 and the second antenna array tuple 102 adopts dual polarization mode to polarize respectively, and the bay in same antenna array tuple adopts identical polarization mode to polarize, to ensure that the signal that like-polarized bay is launched has identical phase place and amplitude, thus realize the wave beam forming of signal transmitting.Bay in different antenna element group adopts orthogonal polarization mode to polarize.Wherein, dual polarization mode can comprise positive 45 degree of polarization modes, negative 45 degree of polarization modes etc., and such as, first day linear array tuple 101 adopts positive 45 degree of polarization modes to polarize, and the second antenna array tuple 102 adopts negative 45 degree of polarization modes to polarize.
Fig. 2 shows the structural representation of the another aerial array that the embodiment of the present invention one provides.On the basis of the aerial array shown in Fig. 1, this aerial array as shown in Figure 2, also comprise corresponding with first day linear array tuple 101 further and there is the first directional couple unit 103, corresponding and there is the second directional couple unit 104 of annexation with the second antenna array tuple 102 of annexation, and there is the Polarimetric Calibration unit 105 of annexation with the first directional couple unit 103 and the second directional couple unit 104 respectively.
Wherein:
First directional couple unit 103 and the second directional couple unit 104, be mainly used in carrying out directional couple process to the signal of the aerial array group of correspondence to be entered, namely amplitude and the phase place of this signal is adjusted, the working method of the signal of each bay in the antenna array tuple corresponding to input is made to be same polarization, make to reach the relevant object that transmits, form the effect of wave beam forming;
Polarimetric Calibration unit 105, be mainly used in the signal after to the first directional couple unit 103 and the process of the second directional couple unit 104 to calibrate further, to make the working method of the signal inputing to first day linear array tuple 101 and the working method orthogonal polarization mode each other of signal inputing to the second antenna array tuple 102.
Fig. 3 shows the structural representation of the another aerial array that the embodiment of the present invention one provides.As shown in Figure 3, on the basis of the aerial array shown in Fig. 2, this aerial array as shown in Figure 3, also comprise train of signal further and converting unit 106, this train of signal converting unit 106 exists annexation with the radiofrequency signal port of the first directional couple unit 103 and the radiofrequency signal port of the second directional couple unit 104 respectively, is mainly used in serial signal to be converted to parallel signal.
In like manner, in order to meet the requirement of intelligent antenna technology to the correlation of signal between bay better, and meet the requirement of MIMO to non-correlation between array element signal, in the aerial array that Fig. 2 and Fig. 3 provides, the working method of first day linear array tuple 101 and the second antenna array tuple 102 is identical with the working method of first day linear array tuple in Fig. 1 101 and the second antenna array tuple 102, namely each bay in first day linear array tuple 101 and the second antenna array tuple 102 adopts dual polarization mode to polarize respectively, and the bay in same antenna array tuple adopts identical polarization mode to polarize, bay in different antenna element group adopts orthogonal polarization mode to polarize.
According to the aerial array of above-mentioned arbitrary structure that the embodiment of the present invention one provides, combine array element grouping advantage in dual-polarization intelligent antenna and single antenna, the irrelevance of signal between antenna array tuple is realized by dual polarization, the incoherent mode of signal is realized relative to utilizing merely space length, after following LTE introduces dual-polarization technique, also can be suitable for the development trend of following LTE.
And, the aerial array that the embodiment of the present invention one provides is owing to forming at three bays of antenna array tuple by equilateral triangle position relationship, the lateral dimension reducing aerial array and take is designed relative to existing smart antenna tiling, on the basis achieving smart antenna and MIMO technological incorporation, also reach constructability and reduce the object of windage, less on existing network impact, can dispose by single base station during deployment.
The above-mentioned aerial array that the embodiment of the present invention one provides, can be included in existing mobile communication system, such as, is included in base station equipment, to improve data transmission efficiency and the power system capacity of communication system.
Embodiment two
The embodiment of the present invention two provides the communication means that a kind of aerial array provided based on embodiment one realizes.
The aerial array that Fig. 4 shows to be provided based on embodiment one realizes the schematic flow sheet of communication means.As shown in Figure 4, based on the communication means that the aerial array shown in Fig. 1 realizes, mainly comprise the steps:
Each bay in the first day linear array tuple 101 that step 401, aerial array comprise receives employing first polarization mode respectively and carries out polarizing the signal after processing.
Each bay in the second antenna array tuple 102 that step 402, aerial array comprise receives employing second polarization mode respectively and carries out polarizing the signal after processing.
In above-mentioned steps 401 and step 402, the first polarization mode and the second polarization mode are orthogonal polarization mode, and such as, the first polarization mode is positive 45 degree of polarization modes, then the second polarization mode can be negative 45 degree of polarization modes.Further, above-mentioned steps 401 and step 402 there is no strict execution sequence, are perform under normal circumstances simultaneously.
Each bay in step 403, first day linear array tuple 101 and each bay in the second antenna array tuple 102 adopt the signal of intelligent antenna technology launch and accept respectively.
So far, the communication process realized based on the aerial array shown in Fig. 1 terminates.
By the flow process that Fig. 4 is corresponding, the signal that first day linear array tuple 101 and the inner each bay of the second antenna array tuple 102 receive is co polar signal, the maximal correlation of signal is enough realized to meet the requirement of intelligent antenna technology at each antenna array tuple within, the signal that first day linear array tuple 101 and the inner each bay of the second antenna array tuple 102 receive is orthogonally polarized signal, can realize the maximum uncorrelated with the requirement meeting MIMO technology of signal between each antenna array tuple.Thus pass through the communication process of this process implementation, the advantage of intelligent antenna technology and MIMO technology can be annexed, improve data transmission efficiency and the power system capacity of communication system.
Further, in the embodiment of the present invention two, the signal that first day linear array tuple 101 and the second antenna array tuple 102 receive respectively is the parallel signal be converted to by serial signal.
In order to understand the communication means that the embodiment of the present invention provides better, below in conjunction with the aerial array shown in Fig. 3, the concrete signal processing procedure of the communication means that the embodiment of the present invention two provides is described in detail.
The aerial array that Fig. 5 shows to be provided based on embodiment one realizes the another schematic flow sheet of communication means.As shown in Figure 5, based on the communication means that the aerial array shown in Fig. 3 realizes, mainly comprise the steps:
Step 501, train of signal serial signal is converted to two groups of parallel signals by converting unit 106, and input to the first directional couple unit 103 and the second directional couple unit 104 respectively by radiofrequency signal port.
In this step 501, after serial signal is converted to two groups of parallel signals by train of signal converting unit 106, one group of parallel signal is inputed to the first directional couple unit 103, another group parallel signal is inputed to the second directional couple unit 104, thus in technical scheme provided by the invention is applied to technology that OFDM (OFDM) and MIMO merge, can make parallel signal transmission on orthogonal sub-channels.
The signal of input processes by step 502, the first directional couple unit 103 and the second directional couple unit 104 respectively, and the signal after process is inputed to Polarimetric Calibration unit 105.
In this step 502, the signal of input processes by the first directional couple unit 103 and the second directional couple unit 104 respectively, even if the signal inputing to same antenna array element group meets same polarization requirement, concrete processing procedure illustrates in the above-described embodiments, repeats no more herein.
Step 503, Polarimetric Calibration unit 105 process the signal that the first directional couple unit 103 and the second directional couple unit 104 provide, and the signal after process is sent to first day linear array tuple 101 respectively by the first directional couple unit 103, and be sent to the second antenna array tuple 102 by the second directional couple unit 104.
In this step 503, Polarimetric Calibration unit 105 processes the signal that the first directional couple unit 103 and the second directional couple unit 104 provide, and mainly makes the working method of the signal inputing to first day linear array tuple 101 and the working method orthogonal polarization mode each other of signal inputing to the second antenna array tuple 102.Particularly, Polarimetric Calibration unit 105 can adopt existing Polarimetric Calibration device to realize, and such as, Polarimetric Calibration device, by adaptive adjustment, ensures the orthogonal polarization of the signal between antenna array tuple, thus meets the requirement of MIMO technology to signal irrelevance.
The signal received adopts intelligent antenna technology to launch by step 504, first day linear array tuple 101 and the second antenna array tuple 102 respectively.
In this step 504, three bays of each antenna array tuple inside, by adaptive network, self-adaptative adjustment weighted value, form several adaptive beam thus reach conventional smart antenna job requirement.
So far, flow process terminates.
In the flow process that Fig. 5 is corresponding, the signal that two relatively independent antenna array tuples are launched is: the two groups of parallel signals be converted to by a series of serial signal, under polarised direction quadrature, form multi-input/output antenna mode of operation, effectively overcome the fading effect of channel of wireless mobile communication.
The technique scheme that the embodiment of the present invention provides can be applied to CBD (Central BusinessDistrict, central business district), residential quarters, the scenes such as colleges and universities, also geographical and floor circumstance complication scene can be applied to, traditional 2/3G signal affects larger by geographical and floor circumstance complication degree, multipath effect is caused mainly due to floor signal reflection, or terrain slope causes covering blind spot, the technical scheme provided according to the embodiment of the present invention can make full use of the multipath effect that circumstance complication causes, multi-path jamming is become diversity gain, effectively improve signal degradation problems.
By the aerial array that the embodiment of the present invention provides, bay is divided into two antenna array tuples, each bay group comprises three bays of formation equilateral triangle position relationship respectively and the spacing between each bay is the spacing (being less than a signal wavelength) that intelligent antenna technology requires, to meet the requirement of intelligent antenna technology to the correlation of signal between bay; And, each bay in two antenna array tuples adopts identical polarization mode to polarize, bay in different antenna element group adopts orthogonal polarization mode to polarize, thus polarized by orthogonal polarization mode between group, to meet the requirement of MIMO to non-correlation between array element signal, thus MIMO technology and intelligent antenna technology can be supported.
The communication system that the aerial array based on said structure provided by the embodiment of the present invention is realized and communication means, because this smart antenna can support MIMO technology and intelligent antenna technology, therefore the advantage of MIMO technology and intelligent antenna technology has been annexed, improve data transmission efficiency and the power system capacity of communication system, and be adapted to the requirement to high-rate service in future mobile communication system.
Although described the preferred embodiment of the application, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. an aerial array, is characterized in that, comprising:
Have two antenna array tuples in single antenna, wherein, each bay group comprises three bays of formation equilateral triangle position relationship respectively and the spacing between each bay is less than a signal wavelength; Spacing between described two antenna array tuples is greater than 1/2 signal wavelength and is less than 1 signal wavelength;
Each bay in described two antenna array tuples adopts dual polarization mode to polarize respectively, and the bay in same antenna array tuple adopts identical polarization mode to polarize, the bay in different antenna element group adopts orthogonal polarization mode to polarize.
2. aerial array as claimed in claim 1, it is characterized in that, the spacing in each antenna array tuple between each bay is 1/2 signal wavelength.
3. aerial array as claimed in claim 1, it is characterized in that, described dual polarization mode comprises:
Positive 45 degree of polarization modes, negative 45 degree of polarization modes.
4. aerial array as claimed in claim 1, is characterized in that, also comprise:
Directional couple unit corresponding with each antenna array tuple respectively, there is annexation with each bay in corresponding antenna array tuple respectively in each directional couple unit; And
The Polarimetric Calibration unit of annexation is there is respectively with described directional couple unit.
5. aerial array as claimed in claim 4, is characterized in that, also comprise:
The train of signal of annexation is there is respectively and converting unit, for serial signal is converted to parallel signal with the radiofrequency signal port of described directional couple unit.
6. a communication system, is characterized in that, comprises the aerial array described in any one of claim 1 to 5.
7. a communication means, is applied to communication system according to claim 6, it is characterized in that, comprising:
Each bay in the first day linear array tuple that aerial array comprises receives employing first polarization mode respectively and carries out polarizing the signal after processing; And
Each bay in the second antenna array tuple that described aerial array comprises receives employing second polarization mode respectively and carries out polarizing the signal after processing, and described second polarization mode and described first polarization mode are orthogonal polarization mode;
Each bay in each bay in described first day linear array tuple and described second antenna array tuple adopts the described signal of intelligent antenna technology launch and accept respectively.
8. method as claimed in claim 7, it is characterized in that, described first polarization mode is positive 45 degree of polarization modes, and described second polarization mode is negative 45 degree of polarization modes.
9. method as claimed in claim 7, it is characterized in that, described signal is the parallel signal be converted to by serial signal.
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| CN105518934B (en) * | 2014-06-06 | 2019-04-12 | 华为技术有限公司 | Array antenna calibration method, device and system |
| CN106911365B (en) * | 2015-12-21 | 2020-08-28 | 中国移动通信集团公司 | Method and device for correcting polarized antenna array channel |
| CN107112623A (en) * | 2016-11-24 | 2017-08-29 | 深圳市大疆创新科技有限公司 | Antenna module and unmanned vehicle |
| CN113745853B (en) * | 2020-05-30 | 2023-04-18 | 华为技术有限公司 | Antenna array and wireless communication equipment |
| CN113030927A (en) * | 2021-03-10 | 2021-06-25 | 深圳核芯物联科技有限公司 | Method and device for wirelessly detecting distance |
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| CN1755986A (en) * | 2004-09-30 | 2006-04-05 | 北京信威通信技术股份有限公司 | Dual-polarization panel-shaped antenna used in TD-SCDMA system |
| CN1878023A (en) * | 2005-06-09 | 2006-12-13 | 大唐移动通信设备有限公司 | Method for forming MIMO array by using intelligent antenna array |
| CN101635391A (en) * | 2008-07-24 | 2010-01-27 | 中兴通讯股份有限公司 | Antenna array supporting MIMO and intelligent antenna technology |
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| US6870515B2 (en) * | 2000-12-28 | 2005-03-22 | Nortel Networks Limited | MIMO wireless communication system |
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| CN1755986A (en) * | 2004-09-30 | 2006-04-05 | 北京信威通信技术股份有限公司 | Dual-polarization panel-shaped antenna used in TD-SCDMA system |
| CN1878023A (en) * | 2005-06-09 | 2006-12-13 | 大唐移动通信设备有限公司 | Method for forming MIMO array by using intelligent antenna array |
| CN101635391A (en) * | 2008-07-24 | 2010-01-27 | 中兴通讯股份有限公司 | Antenna array supporting MIMO and intelligent antenna technology |
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