CN102570064A - Active antenna device and signal transmit-receive method thereof - Google Patents
Active antenna device and signal transmit-receive method thereof Download PDFInfo
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- CN102570064A CN102570064A CN2011104597573A CN201110459757A CN102570064A CN 102570064 A CN102570064 A CN 102570064A CN 2011104597573 A CN2011104597573 A CN 2011104597573A CN 201110459757 A CN201110459757 A CN 201110459757A CN 102570064 A CN102570064 A CN 102570064A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
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Abstract
The invention provides an active antenna device and a signal transmit-receive method thereof. The active antenna device comprises digital processing modules, transmit-receive radio-frequency modules and an antenna array, and further comprises combiners, a passive antenna feeder phase-shift network and ANT (Antenna) slots, wherein the combiners are positioned between the transmit-receive radio-frequency modules and the antenna array and used for combining active antenna radio-frequency signals and RRU (Radio Remote Unit) radio-frequency signals, sending the combined signals to corresponding antenna oscillators in the antenna array, receiving signals from the antenna oscillators, performing power distribution to the signals to obtain active antenna signals and RRU signals, and respectively sending the acquired signals to both the transmit-receive radio-frequency modules and the passive antenna feeder phase-shift network; and the passive antenna feeder phase-shift network is connected with the plurality of combiners and used for performing power distribution to RRU transmitting signals received by the ANT slots to obtain a plurality of paths, respectively sending the plurality of RRU transmitting signals to the plurality of combiners, combining RRU receiving signals from the plurality of combiners and outputting the combined signals to RRUs. Owing to the multiplexed antenna array, the equipment utilization ratio is improved.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the method for a kind of active antenna device and receiving and transmitting signal thereof.
Background technology
At civilian moving communicating field; The main flow framework of taking of arranging net of current area is baseband processing unit (BBU)+Remote Radio Unit (RRU) form; As shown in Figure 1, baseband pool unit (BBU) is mutual with the baseband signal of Remote Radio Unit (RRU) through optical fiber transmission completion, and RRU accomplishes the conversion of Digital IF Processing and realization and radiofrequency signal; And be connected with aerial array through the radio frequency wire jumper, by the work that transmits and receives of antenna completion signal.In the engineering installation of actual outfield, this framework need be erected at eminence with RRU and aerial array usually, like the top of sub-district iron tower.In this framework, RRU and aerial array are physical entity independently separately, adopt the radio frequency wire jumper to accomplish the signal transmission each other, and the Insertion Loss of wire jumper has consumed a large amount of power consumptions, has directly influenced the operating efficiency of RRU.
Based on reducing operation, maintenance cost, improve the flexibility that operation, network upgrade are installed, multiple wireless access network base station architecture has appearred in succession.Active antenna is just receiving extensive concern as the form of base station of future generation.
Active antenna is as a kind of new architecture of base station of future generation form; Its outfield engineering installation is as shown in Figure 2; From physical layer, it has realized the integrated of RRU and aerial array, and multiple signals are provided with the multichannel antenna oscillator usually; Each antenna oscillator is worked side by side, and every road antenna oscillator disposes two processing modules usually: transmitting-receiving radio-frequency module and baseband processing module.Active antenna is divided into the antenna oscillator rank with transceiver channel, and granularity is more careful.Active antenna is outside the Insertion Loss influence that the reduction wire jumper brings; Through difference configuration to AAE active antenna element; Can realize the flexible control of wave beam and the multiple-input and multiple-output functions such as (MIMO) of practical communication networking; Realize resource dynamic configuration more flexibly and share, reach the target of the whole network best performance and lower fullnet networking cost.Simultaneously, RRU is integrated in the antenna, has saved the erection space in antenna outfield, reduced the input of the human cost of installation and maintenance.
Consider the operating position of actual commercialization net base station model, the situation that in the following quite a long time, will have BBU+RRU framework and active antenna framework and deposit.When a sub-district need increase new active antenna equipment, the iron tower installation site probably by before the RRU base station take with passive antenna and finish, and active antenna inner integrated aerial array, if use antenna separately certainly will bring the wasting of resources.
Summary of the invention
The embodiment of the invention provides the method for a kind of active antenna device and receiving and transmitting signal thereof, is total to the problem that the installation site is in short supply in the use of sub-district, antenna resource is wasted to solve these two kinds of frameworks.
The embodiment of the invention provides a kind of active antenna device, comprises successively the digital signal processing module, transmitting-receiving radio-frequency module and the aerial array that connect, and this device comprises that also mixer, passive antenna feeder phase-shift network and antenna (ANT) eat dishes without rice or wine, wherein:
Said mixer; Between said transmitting-receiving radio-frequency module and aerial array; Be used for closing the road, the signal that closes behind the road is offered corresponding antenna oscillator in the said aerial array from the active antenna radiofrequency signal of said transmitting-receiving radio-frequency module with from Remote Radio Unit (RRU) radiofrequency signal of said passive antenna feeder phase-shift network; And receive signal from said antenna oscillator, after being divided into active antenna and RRU signal, said signal merit is sent to said transmitting-receiving radio-frequency module and said passive antenna feeder phase-shift network respectively;
Said passive antenna feeder phase-shift network links to each other with a plurality of said mixers, is used for the RRU that eats dishes without rice or wine to receive through ANT transmitted being sent to said a plurality of mixer respectively after merit is divided into multichannel; And eat dishes without rice or wine to export to RRU through said ANT after will closing the road from the RRU reception signal of said a plurality of mixers.
Preferably, said passive antenna feeder phase-shift network also is used to realize the wave beam forming of RRU side.
Preferably, said device also comprises electricity accent mouthful (AISG); Said passive antenna feeder phase-shift network specifically is used for realizing through this AISG the angle of declination adjustment of the wave beam of RRU side.
Preferably, said passive antenna feeder phase-shift network comprises passive antenna feeder network and phase-shift network, and said passive antenna feeder network is for adopting Wilkinson (Wilkinson) and 1/4 wavelength conversion principle, through the passive antenna feeder network of microstrip line and strip line realization; Said passive antenna feeder network is used for realizing the wave beam forming of RRU side through changing live width and line length span of control limit of control and phase weighting respectively; Said phase-shift network is used for realizing phase change through the physical length or the dielectric constant that change circuit.
Preferably, the mixer of said mixer for adopting little band printed circuit board or cavity form to realize; And/or said antenna a period of time is supported antenna a period of time of active antenna signal frequency range and RRU signal frequency range at least for adopting bandwidth-version.
Preferably, this device also comprises power division network; Said power division network, between said mixer and said antenna oscillator, and said power division network links to each other with a plurality of antenna a period of time, and being used for provides amplitude and phase weighting through changing live width and line length for a plurality of antenna oscillators corresponding with this power division network.
Preferably, this device also comprises a plurality of optic fiber converters (OPT) mouth;
Said digital signal processing module is used for receiving the active antenna signal that baseband processing unit (BBU) sends through said OPT mouth, and sends the active antenna signal that carries out after Digital Down Convert is handled to said BBU through said OPT mouth.
Preferably, it is inner that said BBU is positioned at the outside or said active antenna device of said active antenna device.
Preferably, said BBU links to each other with RRU with said active antenna device through a plurality of OPT mouths simultaneously, forms chain networking, ring-shaped network or star-like networking; Perhaps, said BBU links to each other with RRU with said active antenna device respectively through a plurality of OPT mouths.
The embodiment of the invention also provides a kind of method of active antenna device receiving and transmitting signal, and this method comprises:
The active antenna device is through optic fiber converter (OPT) mouthful reception active antenna signal, simultaneously through ANT received RF extension unit (RRU) radiofrequency signal of eating dishes without rice or wine; With said active antenna signal processing is the active antenna radiofrequency signal, and said RRU radiofrequency signal merit is divided into multichannel;
Said active antenna device is exported after respectively the every road RRU radiofrequency signal behind said active antenna radiofrequency signal and the merit branch being closed the road.
Preferably, this method also comprises:
Said active antenna device receives signal, and said signal merit is divided into active antenna signal and RRU signal;
Said active antenna device is defeated through said OPT oral instructions with said active antenna signal, and said RRU signal is eated dishes without rice or wine to be transferred to said RRU through ANT.
Above-mentioned active antenna device externally provides interface to link to each other with RRU, implement device inside antenna array multiplexing, thus in convenient actual arranging net, improved utilization rate of equipment and installations, reduced cost.
Description of drawings
Fig. 1 is existing BBU+RRU framework outfield engineering installation figure;
Fig. 2 is existing active antenna outfield engineering installation figure;
Fig. 3 sets up figure jointly for active antenna device of the present invention and BBU+RRU framework outfield engineering;
The external interface sketch map that Fig. 4 provides for active antenna device of the present invention;
Fig. 5 is the structural representation of active antenna device embodiment one of the present invention;
Fig. 6 is the structural representation of active antenna device embodiment two of the present invention;
Fig. 7 is the structural representation of active antenna device embodiment three of the present invention;
Fig. 8 a is active antenna device of the present invention and BBU and RRU associating networking application scenarios one;
Fig. 8 b is active antenna device of the present invention and BBU and RRU associating networking application scenarios two;
Fig. 8 c is active antenna device of the present invention and BBU and RRU associating networking application scenarios three;
Fig. 8 d is active antenna device of the present invention and BBU and RRU associating networking application scenarios four.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
The embodiment of the invention provides a kind of active antenna device, and with respect to existing active antenna device, this device provides a plurality of external interfaces to link to each other with the radio frequency delivery outlet of RRU, realizes the purpose of this device and RRU common antenna array.This device provides M optic fiber converter (OPT) mouth in addition, realizes using with the associating networking of current BBU and RRU.
The outfield engineering installation figure of the active antenna device that the embodiment of the invention provides is as shown in Figure 3, and this device active part realizes that active antenna self function (dock realize that up-downgoing Digital Signal Processing function, the radio transmission-receiving function of radiofrequency signal, the wave beam forming function of uplink and downlink signals, up-downgoing Downtilt independently are adjusted with BBU etc. function) satisfies the function of cell networking business expansion; In addition, this device provides external radio frequency interface to link to each other with RRU, guarantees the normal operation of legacy network.
Particularly, this active antenna device comprises digital signal processing module, transmitting-receiving radio-frequency module and the aerial array that connects successively, comprises that also mixer, passive antenna feeder phase-shift network and ANT eat dishes without rice or wine, wherein:
Said mixer; Between said transmitting-receiving radio-frequency module and aerial array; Be used for closing the road, the signal that closes behind the road is offered corresponding antenna oscillator in the said aerial array from the active antenna radiofrequency signal of said transmitting-receiving radio-frequency module with from Remote Radio Unit (RRU) radiofrequency signal of said passive antenna feeder phase-shift network; And receive signal from said antenna oscillator, after being divided into active antenna and RRU signal, said signal merit is sent to said transmitting-receiving radio-frequency module and said passive antenna feeder phase-shift network respectively;
Said passive antenna feeder phase-shift network links to each other with a plurality of said mixers, is used for the RRU that eats dishes without rice or wine to receive through antenna (ANT) transmitted being sent to said a plurality of mixer respectively after merit is divided into multichannel; And eat dishes without rice or wine to export to RRU through said ANT after will closing the road from the RRU reception signal of said a plurality of mixers.
External interface sketch map as shown in Figure 4, as to provide for active antenna device of the present invention, wherein, ANT1-ANT N link to each other (number that N depends on the built-in aerial array) of eating dishes without rice or wine with RRU realizes the mutual of radiofrequency signal; In addition, this device can also comprise AISG, and this AISG is that the electricity of RRU passive antenna array is transferred mouth, the functions such as angle of declination adjusting of control RRU aerial array; Further, optic fiber converter (OPT) 1-OPTM mouth installs the optical fiber connector of self for this, accomplishes the mutual of baseband signal with BBU, RRU or other active antenna, realizes the mixed networking function.
As shown in Figure 5, be the structural representation of active antenna device embodiment one of the present invention, this device comprises digital signal processing module 11, transmitting-receiving radio-frequency module 12, aerial array 13, mixer 14 and passive antenna feeder phase-shift network 15.The corresponding cover transceiver link of antenna oscillator of active antenna, the quantity of antenna oscillator and the corresponding relation of path have determined the quantity of transceiver link.
Above-mentioned digital signal processing module 11, when descending, the parallel/serial IQ of converting into the digitally transmitted signals of signal to baseband processing unit sends offers the transmitting-receiving radio-frequency module; When up, the IQ analog receiving signal that down-conversion is obtained converts IQ digital received signal into and carries out digital processing.Digital signal processing module can be subdivided into corresponding each antenna oscillator of M digital signal processing module, and each module is accomplished the digital processing task of receiving-transmitting chain separately.In addition, digital signal processing module is also accomplished amplitude, phase alignment through related algorithm, beam shaping, angle of declination adjustment, sub-carrier or merotype function such as have a down dip.
Above-mentioned transmitting-receiving radio-frequency module 12, corresponding separately each antenna oscillator.Each module can be subdivided into emission, reception, feedback path.Transmission channel upconverts to radiofrequency signal through up-conversion modulator with the intermediate-freuqncy signal that digital signal processing module provides, further through casacade multi-amplifier amplifying emission signal.Receive path receives and to receive RF small signals from aerial array, amplifies through low noise amplifier (LNA) device of etc.ing, and passes through down-conversion mixer and be converted into intermediate-freuqncy signal and offer digital signal processing module.Feedback path is accomplished two functions: (1) offers digital signal processing module and does digital pre-distortion processing (DPD) from emission power amplifier (PA) output coupling coherent signal, reveals rejection ratio with the neighboring trace of optimizing transmitting chain; (2), realize launching, receiving amplitude, the phase alignment of each passage as calibrated channel.
Above-mentioned aerial array 13 is made up of antenna oscillator, realizes the conversion of electromagnetic wave signal and radiofrequency signal, accomplishes emission, receives signal space radiation and receiving function.
Above-mentioned mixer 14, always total M.When descending, the road of closing that it accomplishes active antenna radiofrequency signal and RRU radiofrequency signal offers each antenna oscillator; When up, the small-signal that its reception antenna oscillator is received, and merit is divided into active antenna and RRU two paths of signals.
Above-mentioned passive antenna feeder phase-shift network 15 is made up of passive antenna feeder network and phase-shift network two parts.Passive antenna feeder network is accomplished merit that RRU transmits and is divided with RRU receives signal and close the road function, and composes the antenna beam figuration of certain amplitude, phase difference realization RRU side for every road.Phase-shift network is controlled by AISG, changes the angle of declination adjustment of the phase place realization RRU side wave bundle of each passage through drive of motor.
If as a sub-systems, complete machine can also be realized the integrated of N sub-systems so with device shown in Figure 5, complete machine and the RRU external interface of eating dishes without rice or wine is ANT1-ANTN like this, N altogether.
Device shown in Figure 5 through mixer realized active antenna signal and RRU signal the merit branch, close the road, reached the purpose of multiplex antenna array.Below from the signal angle of strike, further specify the concrete function of this device:
When descending, this device receives active antenna IQ digital signal at the OPT mouth, outside the ANT1 mouth receives, connects the radio frequency analog downstream signal of RRU simultaneously.Active antenna IQ digital signal converts the IQ analog signal to through digital signal processing module 11, up-converts to the active antenna radiofrequency signal through transmitting-receiving radio-frequency module 12; The RRU radiofrequency signal is divided into M road signal through passive antenna feeder phase-shift network 15 merits.Mixer closes the road with this two paths of signals and offers antenna oscillator, realizes energy emission.
When up, this device antenna oscillator receives the space small-signal, through mixer active antenna radiofrequency signal and RRU radiofrequency signal merit is divided into two-way.The active antenna radiofrequency signal is accomplished by the conversion of radiofrequency signal to IQ analog signal, IQ digital signal via transmitting-receiving radio-frequency module 12, digital signal processing module 11, offers BBU and handles; Each road radiofrequency signal of RRU is realized closing the road by passive antenna feeder phase-shift network 15, and the radio frequency analog signal that will close behind the road sends to RRU completion upward signal processing capacity.
Need explanation to be: the space radiation of each signal, reception need wave beam forming and angle of declination adjustment, and the beam shaping of active antenna signal and RRU signal adopts diverse ways realization separately.The active antenna part; Whole machine using based on feedback link or special-purpose calibrated channel; Collection transmits and receives amplitude, the phase information of each passage; Digital processing element is done the width of cloth that relevant treatment obtains every passage, is differed and time delay information, is provided the correction factor of each passage at last by digital processing element, realizes beam shaping and angle of declination adjusting.The RRU part, passive antenna feeder network is composed different amplitude, phase difference realization beam shaping through the physics cabling to every passage, further transfers mouth to regulate through each channel phases completion angle of declination of phase-shift network mechanical adjustment by the AISG electricity.
Passive antenna feeder network can adopt principles such as Wilkinson (Wilkinson), 1/4 wavelength conversion, realizes through forms such as microstrip line and strip lines, further changes live width, line length span of control limit of control, phase performance respectively.
Phase-shift network is mainly realized phase change through the physical length or the dielectric constant that change circuit.
Mixer can adopt the form of little band printed circuit board or cavity to realize, two signals that close the road are separated from each other on frequency.For improving effect, require the mixer Insertion Loss as far as possible little, and keep certain inhibition between port and isolate index, prevent interfering with each other between two signals.
Antenna oscillator is the broadband form, need support active at least and working frequency range passive part.
As shown in Figure 6, be the structural representation of active antenna device embodiment two of the present invention, compare the extra power division network 16 that increased of Fig. 6, be connected (K gets 2 or 3 usually) of realizing transmitting-receiving radio-frequency module and a K antenna oscillator with device shown in Figure 5.Power division network 16 can adopt little band printed circuit board power splitter of Wilkinson or other types to come physics realization; Fixing amplitude, phase weighting is provided for each oscillator through changing live width and line length, thereby the approach of another physical compensation is provided for the wave beam forming of active antenna side and RRU side.
The introducing of power division network 16 has reduced the quantity of active antenna side transceiver channel to a certain extent, thereby has effectively reduced cost and power consumption.
On the basis of Fig. 5 and Fig. 6, active antenna also can be realized the integrated of BBU, and its internal structure is as shown in Figure 7.Power division network 16 is removed, realized that promptly Fig. 5 and BBU's is integrated.
Above-mentioned active antenna device can also provide M OPT external interface (M >=2), can realize and existing BBU and RRU associating networking through this OPT interface, and concrete scene description is following:
Mix chain: can realize a BBU simultaneously with K active antenna device of the present invention (hereinafter to be referred as AAS) and L RRU chain networking of cascade mutually.Wherein K+L=Y, and AAS and RRU position and the quantity in chain networking can flexible transformation, shown in Fig. 8 a.
Mix ring-like: can realize BBU simultaneously with K AAS and L RRU ring-shaped network of cascade mutually, Y base station is connected the realization loop with BBU.Wherein K+L=Y, and AAS and RRU position and the quantity in chain networking can flexible transformation, shown in Fig. 8 b.
Mix star-like: can realize that same BBU connects the star-like networking mode of K AAS and L RRU simultaneously.K+L=Y wherein, and the allocation ratio of AAS and RRU also can flexible configuration in the star-like networking, shown in Fig. 8 c.
Self: can realize that K AAS and L RRU are connected the independence networking of BBU separately respectively, shown in Fig. 8 d.
Above application scenarios, when realizing RRU and apparatus of the present invention associating networking, RRU eats dishes without rice or wine to be connected with contiguous active antenna device of the present invention, realizes the multiplexing of built-in aerial array.
Active antenna device of the present invention also can be applied in cooperation formula wireless access (CRAN) framework of cloud computing framework.
Above-mentioned active antenna device links to each other with RRU through external interface, implement device inside antenna array multiplexing, thus in convenient actual arranging net, improved utilization rate of equipment and installations, reduced cost.
The embodiment of the invention also provides a kind of method of active antenna device receiving and transmitting signal, and this method is applicable to Fig. 5-device shown in Figure 7, also is applicable to the framework shown in Fig. 8 a-8d, and this method comprises:
Step 11, active antenna device be through optic fiber converter (OPT) mouthful reception active antenna signal, simultaneously through ANT received RF extension unit (RRU) radiofrequency signal of eating dishes without rice or wine; With said active antenna signal processing is the active antenna radiofrequency signal, and said RRU radiofrequency signal merit is divided into multichannel;
Said process is the process that active antenna device of the present invention sends signal, and in addition, the process that this active antenna device receives signal is following:
Step 21, said active antenna device receive signal, and said signal merit is divided into active antenna signal and RRU signal;
Step 22, said active antenna device are failed said active antenna signal through said OPT oral instructions, said RRU signal is eated dishes without rice or wine to be transferred to said RRU through ANT.
Utilize the active antenna device provided by the invention can multiplex antenna array receiving and transmitting signal, thereby improved utilization rate of equipment and installations, reduced cost.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said procedure can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is specified.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and the scope of technical scheme of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (11)
1. active antenna device comprises the digital signal processing module, transmitting-receiving radio-frequency module and the aerial array that connect successively, it is characterized in that, this device comprises that also mixer, passive antenna feeder phase-shift network and antenna (ANT) eat dishes without rice or wine, wherein:
Said mixer; Between said transmitting-receiving radio-frequency module and aerial array; Be used for closing the road, the signal that closes behind the road is offered corresponding antenna oscillator in the said aerial array from the active antenna radiofrequency signal of said transmitting-receiving radio-frequency module with from Remote Radio Unit (RRU) radiofrequency signal of said passive antenna feeder phase-shift network; And receive signal from said antenna oscillator, after being divided into active antenna and RRU signal, said signal merit is sent to said transmitting-receiving radio-frequency module and said passive antenna feeder phase-shift network respectively;
Said passive antenna feeder phase-shift network links to each other with a plurality of said mixers, is used for the RRU that eats dishes without rice or wine to receive through said ANT transmitted being sent to said a plurality of mixer respectively after merit is divided into multichannel; And eat dishes without rice or wine to export to RRU through said ANT after will closing the road from the RRU reception signal of said a plurality of mixers.
2. device according to claim 1 is characterized in that:
Said passive antenna feeder phase-shift network also is used to realize the wave beam forming of RRU side.
3. device according to claim 2 is characterized in that, said device also comprises electricity accent mouthful (AISG);
Said passive antenna feeder phase-shift network specifically is used for realizing through this AISG the angle of declination adjustment of the wave beam of RRU side.
4. device according to claim 2 is characterized in that:
Said passive antenna feeder phase-shift network comprises passive antenna feeder network and phase-shift network, and said passive antenna feeder network is for adopting Wilkinson (Wilkinson) and 1/4 wavelength conversion principle, through the passive antenna feeder network of microstrip line and strip line realization;
Said passive antenna feeder network is used for realizing the wave beam forming of RRU side through changing live width and line length span of control limit of control and phase weighting respectively;
Said phase-shift network is used for realizing phase change through the physical length or the dielectric constant that change circuit.
5. device according to claim 1 is characterized in that:
The mixer of said mixer for adopting little band printed circuit board or cavity form to realize; And/or
Said antenna a period of time is supported antenna a period of time of active antenna signal frequency range and RRU signal frequency range at least for adopting bandwidth-version.
6. according to the described device of the arbitrary claim of claim 1-5, it is characterized in that this device also comprises power division network;
Said power division network, between said mixer and said antenna oscillator, and said power division network links to each other with a plurality of antenna a period of time, and being used for provides amplitude and phase weighting through changing live width and line length for a plurality of antenna oscillators corresponding with this power division network.
7. device according to claim 6 is characterized in that, this device also comprises a plurality of optic fiber converters (OPT) mouth;
Said digital signal processing module is used for receiving the active antenna signal that baseband processing unit (BBU) sends through said OPT mouth, and sends the active antenna signal that carries out after Digital Down Convert is handled to said BBU through said OPT mouth.
8. device according to claim 7 is characterized in that:
It is inner that said BBU is positioned at the outside or said active antenna device of said active antenna device.
9. device according to claim 8 is characterized in that:
Said BBU links to each other with RRU with said active antenna device through a plurality of OPT mouths simultaneously, forms chain networking, ring-shaped network or star-like networking; Perhaps
Said BBU links to each other with RRU with said active antenna device respectively through a plurality of OPT mouths.
10. the method for an active antenna device receiving and transmitting signal is characterized in that, this method comprises:
The active antenna device is through optic fiber converter (OPT) mouthful reception active antenna signal, simultaneously through antenna (ANT) received RF extension unit (RRU) radiofrequency signal of eating dishes without rice or wine; With said active antenna signal processing is the active antenna radiofrequency signal, and said RRU radiofrequency signal merit is divided into multichannel;
Said active antenna device is exported after respectively the every road RRU radiofrequency signal behind said active antenna radiofrequency signal and the merit branch being closed the road.
11. method according to claim 10 is characterized in that, this method also comprises:
Said active antenna device receives signal, and said signal merit is divided into active antenna signal and RRU signal;
Said active antenna device is defeated through said OPT oral instructions with said active antenna signal, and said RRU signal is eated dishes without rice or wine to be transferred to said RRU through said ANT.
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| CN201110459757.3A CN102570064B (en) | 2011-12-31 | 2011-12-31 | Active antenna device and the method for receiving and transmitting signal thereof |
| PCT/CN2012/075328 WO2013097395A1 (en) | 2011-12-31 | 2012-05-11 | Active antenna device and signal transmission and reception method thereof |
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| CN201110459757.3A CN102570064B (en) | 2011-12-31 | 2011-12-31 | Active antenna device and the method for receiving and transmitting signal thereof |
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