CN102571175B - Active antenna and signal processing method thereof - Google Patents
Active antenna and signal processing method thereof Download PDFInfo
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- CN102571175B CN102571175B CN201110435753.1A CN201110435753A CN102571175B CN 102571175 B CN102571175 B CN 102571175B CN 201110435753 A CN201110435753 A CN 201110435753A CN 102571175 B CN102571175 B CN 102571175B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
Abstract
The invention relates to the filed of communication, in particular to an active antenna and a signal processing method thereof. The active antenna improves accuracy of channel correction and comprises at least two transceiver modules connected in series. Each transceiver module comprises a correction channel submodule, a channel correction upper-level interface and a channel correction lower-level interface for the purpose of amplitude and/or phase correction of signals between the two transceiver modules connected in series. The channel correction lower-level interface of a first transceiver module is connected with the channel correction upper-level interface of a second transceiver module so as to enable the first transceiver module to send a first test signal to the second transceiver module through the channel correction lower-level interface and enable the first transceiver module to receive a second test signal sent by the second transceiver module through the channel correction lower-level interface. The active antenna and the signal processing method thereof are used for manufacturing of base stations.
Description
Technical field
The present invention relates to the communications field of the present invention, relate in particular to the signal processing method of a kind of active antenna and active antenna.
Background technology
Distributed base station is that ordinary base station is divided into baseband processing module (Base Band Unit, BBU) and remote radio unit (RRU) (Remote Radio Unit, RRU) two parts, between the two, by optical fiber, connect, its interface is the interface based on open, can stably be connected with mainstream vendor's equipment.Baseband controller can be arranged on suitable Host equipment room, and transceiver is arranged on antenna end.
Active antenna is a kind of new base station form, is characterized in that transceiver and antenna array are integrated in Anneta module.Antenna oscillator in antenna array is driven by different transceivers, encourages mutually radiation areas and the radiation direction that changes antenna according to the width of transceiver.Active antenna makes the design of base station compacter, and has reduced the feeder line of transceiver to antenna, can be used for reducing the system noise of receiver, improve system signal noise ratio, improve system sensitivity, also improved the system effectiveness of transmitter simultaneously, carry out easily the figuration of wave beam and control.Active antenna inside can comprise logic function: aerial array part, feeding network, transceiver array part, channel correcting part can have different designs from structure forms.
At present, the realization of channel correcting part mainly contains two kinds of forms, star-like bearing calibration and chain bearing calibration.Star-like correction is the design form of the most frequently used correction channel of array antenna, and different receptions or sendaisle are designed to through identical path coupling to correction channel.Chain bearing calibration is connected in series to correction channel by different receptions or sendaisle after overcoupling.
But in existing active antenna, because star-like correction need to guarantee on circuit board that cabling is consistent, correcting circuit plate design difficulty is high; The standing wave of three grades of above chain correction cascade channels superposes mutually, between each frequency range, can produce and interfere with each other, and when standing-wave ratio is poor, the poor accuracy of correction, proofreaies and correct accurately and need to guarantee that each branch road standing wave of connecting is good, has increased design difficulty.
Summary of the invention
The invention provides the signal processing method of a kind of active antenna and active antenna, can improve the accuracy of channel correcting and reduce design difficulty.
On the one hand, provide a kind of active antenna, comprising:
At least two Transceiver Module of series connection, each Transceiver Module comprises correction channel submodule, channel correcting higher level interface and channel correcting subordinate interface, for amplitude and/or the phasing of the signal between two Transceiver Module that are connected in series mutually;
Wherein, the channel correcting subordinate interface of the first Transceiver Module is connected with the channel correcting higher level interface of the second Transceiver Module, for described the first Transceiver Module, by described channel correcting subordinate interface, to described the second Transceiver Module, send the first test signal, described the first Transceiver Module receives by described channel correcting subordinate interface the second test signal that described the second Transceiver Module sends.
On the other hand, provide a kind of signal processing method of active antenna, comprising:
The correction channel submodule of the first Transceiver Module sends the first test signal by coupling interface to the transmitting-receiving submodule of described the first Transceiver Module, and the channel correcting higher level interface of the second Transceiver Module being connected with interface He Yugai channel correcting subordinate of channel correcting subordinate interface by the first Transceiver Module sends described the first test signal to the transmitting-receiving submodule of described the second Transceiver Module; Wherein, described the second Transceiver Module is connected in series mutually with described the first Transceiver Module;
The transmitting-receiving submodule of described the first Transceiver Module and the transmitting-receiving submodule of described the second Transceiver Module are proofreaied and correct respectively amplitude and/or the phase difference of the receive path of self according to described the first test signal.
On the other hand, provide a kind of signal processing method of active antenna, comprising:
The channel correcting higher level interface that the correction channel submodule of the first Transceiver Module receives by coupling interface the second Transceiver Module that the second test signal that the transmitting-receiving submodule of described the first Transceiver Module sends is connected with interface He Yugai channel correcting subordinate of channel correcting subordinate interface by the first Transceiver Module receives the 3rd test signal of the transmitting-receiving submodule transmission of the second Transceiver Module; Wherein, described the second Transceiver Module is connected in series mutually with described the first Transceiver Module;
The transmitting-receiving submodule of described the first Transceiver Module, the transmitting-receiving submodule of described the second Transceiver Module are proofreaied and correct respectively amplitude and/or the phase difference of the transmission channel of self according to described the second test signal and the 3rd test signal.
The active antenna that embodiments of the invention provide and the signal processing method of active antenna, between two Transceiver Module that make to be connected in series mutually by integrated correction channel submodule in Transceiver Module, proofread and correct between two, when reducing design difficulty, improved the accuracy of channel correcting.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic block diagram one of a kind of active antenna that Fig. 1 provides for the embodiment of the present invention;
The schematic block diagram two of a kind of active antenna that Fig. 2 provides for the embodiment of the present invention;
The schematic block diagram three of a kind of active antenna that Fig. 3 provides for the embodiment of the present invention;
The schematic block diagram four of a kind of active antenna that Fig. 4 provides for the embodiment of the present invention;
The schematic diagram of a kind of Transceiver Module that Fig. 5 provides for the embodiment of the present invention;
The schematic diagram of the another kind of Transceiver Module that Fig. 6 provides for the embodiment of the present invention;
The connected mode schematic diagram of a kind of Transceiver Module that Fig. 7 provides for the embodiment of the present invention;
The structural representation of a kind of active antenna that Fig. 8 provides for the embodiment of the present invention;
The structural representation of the another kind of active antenna that Fig. 9 provides for the embodiment of the present invention;
The schematic diagram one of the signal processing method of the active antenna that Figure 10 provides for the embodiment of the present invention;
The schematic diagram two of the signal processing method of the active antenna that Figure 11 provides for the embodiment of the present invention;
The schematic diagram of the chain calibration circuit that Figure 12 provides for the embodiment of the present invention;
The base band signal transmission schematic flow sheet one that Figure 13 provides for the embodiment of the present invention;
The base band signal transmission schematic flow sheet two that Figure 14 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
The active antenna 20 that the embodiment of the present invention provides, as shown in Figure 1, comprises community antenna module 1, at least two Transceiver Module 2, power module 3, and each Transceiver Module 2 is connected in series and is connected with power module 3 with community antenna module 1.Wherein, power module 3 can be positioned at public module.
Wherein, Transceiver Module 2 comprises: transmitting-receiving submodule 21, and its inside at least comprises one group of receive path and transmission channel; Correction channel submodule 22, for being connected in series mutually amplitude and/or the phasing of two signals between Transceiver Module.When transmitting-receiving submodule 21 comprises many group receive paths and transmission channel, Transceiver Module 2 also comprises transmitting-receiving submodule correcting circuit, for amplitude and/or the phase alignment between each group receive path, transmission channel.
By comprising the Transceiver Module 2 of receiving and dispatching submodule, the reception between two Transceiver Module that can be connected in series mutually and/or the correction of receive path, can reduce the stack of standing wave, improved the accuracy of channel correcting when reducing design difficulty.
As shown in Figure 5, Transceiver Module 2 can also comprise: signal transmission higher level interface 1a, the signal transmission interface 1b of subordinate, for receiving baseband signal; Control cabling and power supply higher level interface 2a, control cabling and the interface 2b of power supply subordinate, for connecting power module 3 and CPU, control; Channel correcting higher level interface 3a, the interface 3b of channel correcting subordinate, for proofreading and correct between two between two Transceiver Module that are connected in series mutually.Wherein, channel correcting higher level interface 3a can comprise local oscillator higher level interface 3a1 and proofread and correct coupling higher level interface 3a2, channel correcting higher level interface 3a comprises the interface 3b1 of local oscillator subordinate and proofreaies and correct the coupling interface 3b2 of subordinate, local oscillator interface 3a1,3b1 connect same local oscillator for each Transceiver Module, proofread and correct coupling interface 3a2,3b2 and are connected in series mutually two correction channel submodules 22 among Transceiver Module 2 for connecting.
Further as shown in Figure 2, Transceiver Module 2 can also comprise:
The first wave beam forming unit 24, the baseband signal adding up again after the uplink beam forming coefficient of the baseband signal obtaining after receiving and processing and Transceiver Module at the corresponding levels being taken advantage of again for each Transceiver Module after the described processing of upper level Transceiver Module, is sent to the Transceiver Module that next stage is connected in series mutually; And/or the second wave beam forming unit 25, for taking advantage of again processing by described armed baseband signal and described down beam shaping coefficient, so that described each Transceiver Module passes through antenna transmission simultaneously.
It is pointed out that wave beam forming carries out at numeric field conventionally.The signal of taking advantage of again with uplink beam forming coefficient can be also digital intermediate frequency signal, carry out the baseband signal that cumulative signal is converted to for the digital intermediate frequency signal of taking advantage of again through uplink beam forming coefficient, the signal of taking advantage of again with down beam shaping coefficient can be also digital intermediate frequency signal, and this digital intermediate frequency signal is that armed baseband signal conversion comes.
Like this, baseband signal can be transmitted by the Transceiver Module of serial connection, can more conveniently increase and decrease according to the actual requirements Transceiver Module, has improved the extensibility of active antenna.
Concrete connected mode as shown in Figure 7, the signal transmission interface 1b of subordinate of Transceiver Module one connects the signal transmission higher level interface 1a of Transceiver Module two, the control cabling of Transceiver Module one and the interface 2b of power supply subordinate connect control cabling and the power supply higher level interface 2a of Transceiver Module two, the interface 3b1 of local oscillator subordinate of Transceiver Module one connects local oscillator higher level's interface 3a1 of Transceiver Module two, and the correction coupling interface 3b2 of subordinate of Transceiver Module one connects the correction coupling higher level interface 3a2 of Transceiver Module two.
Be illustrated in figure 8 the active antenna connecting, comprise community antenna module 1, at least two Transceiver Module 2 and power module 3, like this, correction channel submodule by the first transceiver show that the first transceiver and the second transceiver receive and amplitude and/or the phase difference of transmission channel, this amplitude and/or phase difference are that the second transceiver receives amplitude and/or the phase difference with respect to the first transceiver, according to after this amplitude and/or phase difference correction, the second transceiver is the same with transmission channel parameter with the reception of the first transceiver, in like manner, after the amplitude and/or phase difference of the 3rd transceiver correction and the second transceiver, with the first transceiver, the reception of the second transceiver and transmission channel parameter are just the same, the reception and the transmission channel parameter that are equivalent to using the first transceiver are proofreaied and correct as standard, by integrated correction channel submodule in Transceiver Module, make to be connected in series mutually between two Transceiver Module like this and proofread and correct between two, thereby having reduced standing wave stack has reduced between each frequency range and can generation interfere with each other, and series connection transmission between each Transceiver Module, do not need backboard, be easy to like this expand the quantity of Transceiver Module.
The active antenna that embodiments of the invention provide, by integrated correction channel submodule in Transceiver Module, increase channel correcting higher level's interface and subordinate's interface, make to be connected in series mutually between two Transceiver Module and proofread and correct between two, when reducing design difficulty, improved the accuracy of channel correcting.And can be further, by integrated the first wave beam forming module and/or the second wave beam forming module in Transceiver Module, increase signal transmission higher level's interface and subordinate's interface, improve the extensibility of active antenna.
Embodiment bis-
The active antenna 30 that the embodiment of the present invention provides, as shown in Figure 3, comprises at least two Transceiver Module 2 and power module 3, and each Transceiver Module 2 is connected with power module 3.
Wherein, Transceiver Module 2 comprises: transmitting-receiving submodule 21, and its inside at least comprises one group of receive path and transmission channel; Correction channel submodule 22, for being connected in series mutually two signal amplitude and/or phasings between Transceiver Module; Independently Anneta module 23, for receiving and transmitted signal; When transmitting-receiving submodule 21 comprises many group receive paths and transmission channel, Transceiver Module 2 can also comprise transmitting-receiving submodule correcting circuit, for amplitude and/or the phase alignment between each group receive path, transmission channel.
By comprising the Transceiver Module of receiving and dispatching submodule, the reception between two Transceiver Module that can be connected in series mutually and/or the correction of receive path, can reduce the stack of standing wave, improved the accuracy of channel correcting when reducing design difficulty.
As shown in Figure 6, Transceiver Module 2 also comprises: Anneta module, for receiving or transmitted signal; Higher level's interface 1a, the signal transmission interface 1b of subordinate, for connecting baseband signal; Control cabling and power supply higher level interface 2a, control cabling and the interface 2b of power supply subordinate, for connecting power module 3 and CPU, control; Channel correcting higher level interface 3a, the interface 3b of channel correcting subordinate, proofreaies and correct between two for being connected in series mutually between two receipts calling modules 2.Wherein, channel correcting higher level interface 3a comprises local oscillator higher level interface 3a1 and proofreaies and correct coupling higher level interface 3a2, the interface 3b of channel correcting subordinate comprises the interface 3b1 of local oscillator subordinate and proofreaies and correct the coupling interface 3b2 of subordinate, local oscillator interface 3a1,3b1 connect same local oscillator for each Transceiver Module, proofread and correct coupling interface 3a2,3b2 and are connected in series mutually two correction channel submodules 22 among Transceiver Module 2 for connecting.
Further, as shown in Figure 4, Transceiver Module 2 can also comprise:
The first wave beam forming unit 24, the baseband signal adding up again after the uplink beam forming coefficient of the signal obtaining after receiving and processing and Transceiver Module at the corresponding levels being taken advantage of again for each Transceiver Module after the described processing of upper level Transceiver Module, is sent to the Transceiver Module that next stage is connected in series mutually; The second wave beam forming unit 25, takes advantage of processing for transmitting described in general with described down beam shaping coefficient, again so that described each Transceiver Module passes through antenna transmission simultaneously.
It is pointed out that wave beam forming carries out at numeric field conventionally.The signal of taking advantage of again with uplink beam forming coefficient can be also digital intermediate frequency signal, carry out the baseband signal that cumulative signal is converted to for the digital intermediate frequency signal of taking advantage of again through uplink beam forming coefficient, the signal of taking advantage of again with down beam shaping coefficient can be also digital intermediate frequency signal, and this digital intermediate frequency signal is that armed baseband signal conversion comes.
Like this, baseband signal can be transmitted by the Transceiver Module of serial connection, can more conveniently increase and decrease according to the actual requirements Transceiver Module, has improved the extensibility of active antenna.
The concrete connected mode and the embodiment mono-that are connected in series mutually between Transceiver Module in the present embodiment are just the same, repeat no more.
Be illustrated in figure 9 the active antenna connecting, comprise community antenna module 1, at least two Transceiver Module 2 and power module 3, like this, correction channel submodule by the first transceiver show that the first transceiver and the second transceiver receive and amplitude and/or the phase difference of transmission channel, this amplitude and/or phase difference are that the second transceiver receives amplitude and/or the phase difference with respect to the first transceiver, according to after this amplitude and/or phase difference correction, the reception of the second transceiver and the first transceiver and transmission channel parameter are just the same, in like manner, after the amplitude and/or phase difference of the 3rd transceiver correction and the second transceiver, with the first transceiver, the reception of the second transceiver and transmission channel parameter are just the same, the reception and the transmission channel parameter that are equivalent to using the first transceiver are proofreaied and correct as standard, by integrated correction channel submodule in Transceiver Module, make to be connected in series mutually between two Transceiver Module like this and proofread and correct between two, thereby having reduced standing wave stack has reduced between each frequency range and can generation interfere with each other, and series connection transmission between each Transceiver Module, do not need backboard, be easy to like this expand the quantity of Transceiver Module.
The active antenna that embodiments of the invention provide, makes to be connected in series mutually between two Transceiver Module by integrated correction channel submodule in Transceiver Module and proofreaies and correct between two, has improved the accuracy of channel correcting when reducing design difficulty.
Embodiments of the invention also comprise base station system, and it comprises any one active antenna of mentioning in the embodiment of the present invention.
Embodiment tri-
The signal processing method of the active antenna that the embodiment of the present invention provides, as shown in figure 10, comprising:
The correction channel submodule of S101, the first Transceiver Module sends the first test signal by coupling interface to the transmitting-receiving submodule of the first Transceiver Module, and the channel correcting higher level interface of the second Transceiver Module being connected with interface He Yugai channel correcting subordinate of channel correcting subordinate interface by the first Transceiver Module sends the first test signal to the transmitting-receiving submodule of the second Transceiver Module; Wherein, the second Transceiver Module is connected in series mutually with the first Transceiver Module.
The transmitting-receiving submodule of S102, the first Transceiver Module and the transmitting-receiving submodule of the second Transceiver Module are proofreaied and correct respectively amplitude and/or the phase difference of the receive path of self according to the first test signal.
The signal processing method of the active antenna that embodiments of the invention provide, by integrated correction channel submodule in Transceiver Module, make to be connected in series mutually between two Transceiver Module and proofread and correct between two, when reducing design difficulty, improved the accuracy of channel correcting.
Embodiment tetra-
The signal processing method of the active antenna that the embodiment of the present invention provides, as shown in figure 12, two of the Transceiver Module that are connected in series mutually of take are example, comprising:
The correction channel submodule 12 of the first Transceiver Module 1 sends the first test signals by coupling interface to the transmitting-receiving submodule 11 of the first Transceiver Module 1, and the channel correcting higher level interface of the second Transceiver Module 2 being connected with interface He Yugai channel correcting subordinate of channel correcting subordinate interface by the first Transceiver Module 1 is to transmitting-receiving submodule 21 transmission first test signals of the second Transceiver Module 2; Wherein, the second Transceiver Module 2 is connected in series mutually with the first Transceiver Module 1.
11 pairs of the first test signals of transmitting-receiving submodule of the first Transceiver Module 1 obtain the first amplitude and/or phase signal A after processing, and A is sent to processor.
21 pairs of the first test signals of transmitting-receiving submodule of the second Transceiver Module 2 obtain the first amplitude and/or phase signal B after processing, and B is sent to processor.
Processor receives after A and B, according to formula TRX1=TRX2+S12+A and formula TRX2=B-S21-TRX1, calculate amplitude and/or the phase difference of the receive path of the first Transceiver Module 1 and the second Transceiver Module 2, wherein TRX1 and TRX2 are respectively amplitude and/or the phase place of the first Transceiver Module 1 and the second Transceiver Module 2, S12 and S21 are the transfer function between the first Transceiver Module 1 and the second Transceiver Module 2, because adopt and be connected in series mutually the method for proofreading and correct between two between two Transceiver Module, phase mutual interference between each Transceiver Module is very little, be approximately zero.Therefore, the transfer function S12 between the first Transceiver Module 1 and the second Transceiver Module 2 and S21 equate, so the amplitude of the receive path of the first Transceiver Module 1 and the second Transceiver Module 2 and/or phase difference are (A+B)/2.
Processor is sent to respectively the transmitting-receiving submodule 11 of the first Transceiver Module 1 and the transmitting-receiving submodule 21 of the second Transceiver Module 2 by the amplitude of above-mentioned receive path and/or phase difference, so that the transmitting-receiving submodule 21 of the transmitting-receiving submodule 11 of the first Transceiver Module 1 and the second Transceiver Module 2 is proofreaied and correct the receive path of self respectively according to the amplitude of above-mentioned receive path and/or phase difference.
Further, as shown in figure 13, after the receiving channels calibration of the first Transceiver Module 1 and the second Transceiver Module 2, also comprise the transmission of baseband signal:
S301, each Transceiver Module is by antenna reception radiofrequency signal and be processed into baseband signal;
Baseband signal S302, the Transceiver Module reception & disposal that is connected in series mutually from upper level; Wherein, the signal that to be upper level Transceiver Module obtain from the signal of antenna reception and the wave beam forming coefficient of upper level Transceiver Module are taken advantage of mutually again of the baseband signal after processing;
S303, each Transceiver Module are by the radiofrequency signal of reception and process the baseband signal after the processing of the upper level Transceiver Module that adds up again after the baseband signal obtaining is taken advantage of again with the uplink beam forming coefficient of Transceiver Module at the corresponding levels, and are sent to Transceiver Module that next stage is connected in series mutually until be sent to Base Band Unit by the Transceiver Module being connected in series mutually with Base Band Unit.
The signal processing method of the active antenna that embodiments of the invention provide, by integrated correction channel submodule in Transceiver Module, make to be connected in series mutually between two Transceiver Module and proofread and correct between two, when reducing design difficulty, improved the accuracy of channel correcting.
Embodiment five
The signal processing method of the active antenna that the embodiment of the present invention provides, as shown in figure 11, comprising:
The channel correcting higher level interface that the correction channel submodule of S201, the first Transceiver Module receives by coupling interface the second Transceiver Module that the second test signal that the transmitting-receiving submodule of the first Transceiver Module sends is connected with interface He Yugai channel correcting subordinate of channel correcting subordinate interface by the first Transceiver Module receives the 3rd test signal of the transmitting-receiving submodule transmission of the second Transceiver Module; Wherein, the second Transceiver Module is connected in series mutually with the first Transceiver Module.
The transmitting-receiving submodule of S201, the first Transceiver Module, the transmitting-receiving submodule of the second Transceiver Module are proofreaied and correct respectively amplitude and/or the phase difference of the transmission channel of self according to the second test signal and the 3rd test signal.
The signal processing method of the active antenna that embodiments of the invention provide, by integrated correction channel submodule in Transceiver Module, make to be connected in series mutually between two Transceiver Module and proofread and correct between two, when reducing design difficulty, improved the accuracy of channel correcting.
Embodiment six
The signal processing method of the active antenna that the embodiment of the present invention provides, as shown in figure 12, two of the Transceiver Module that are connected in series mutually of take are example, comprising:
The channel correcting higher level interface that the correction channel submodule 12 of the first Transceiver Module 1 receives by coupling interface the second Transceiver Module 2 that the second test signal that the transmitting-receiving submodule 11 of the first Transceiver Module 1 sends is connected with interface He Yugai channel correcting subordinate of channel correcting subordinate interface by the first Transceiver Module 1 receives the 3rd test signal of transmitting-receiving submodule 21 transmissions of the second Transceiver Module 2; Wherein, the second Transceiver Module 2 is connected in series mutually with the first Transceiver Module 1.
The correction channel submodule 12 of the first Transceiver Module 1 receive the second test signal that the transmitting-receiving submodule 11 of the first Transceiver Module 1 sends and process after obtain the 3rd amplitude and/or phase signal C, and C is sent to processor.
The correction channel submodule 12 of the first Transceiver Module 1 receive the 3rd test signal that the transmitting-receiving submodule 21 of the second Transceiver Module 2 sends and process after obtain the 4th amplitude and/or phase signal D, and D is sent to processor.
Processor receives after C and D, according to formula TRX1=TRX2+S12+C and formula TRX2=D-S21-TRX1, calculate amplitude and/or the phase difference of the transmission channel of the first Transceiver Module 1 and the second Transceiver Module 2, wherein TRX1 and TRX2 are respectively amplitude and/or the phase place of the first Transceiver Module 1 and the second Transceiver Module 2, S12 and S21 are the transfer function between the first Transceiver Module 1 and the second Transceiver Module 2, because adopt and be connected in series mutually the method for proofreading and correct between two between two Transceiver Module, phase mutual interference between each Transceiver Module is very little, be approximately zero.Therefore, the transfer function S12 between the first Transceiver Module 1 and the second Transceiver Module 2 and S21 equate, so the amplitude of the transmission channel of the first Transceiver Module 1 and the second Transceiver Module 2 and/or phase difference are (A+B)/2.
Processor is sent to respectively the transmitting-receiving submodule 11 of the first Transceiver Module 1 and the transmitting-receiving submodule 21 of the second Transceiver Module 2 by the amplitude of above-mentioned transmission channel and/or phase difference, so that the transmitting-receiving submodule 21 of the transmitting-receiving submodule 11 of the first Transceiver Module 1 and the second Transceiver Module 2 is proofreaied and correct the transmission channel of self respectively according to the amplitude of above-mentioned transmission channel and/or phase difference.
Further, as shown in figure 14, after the transmitting channel correction of the first Transceiver Module 1 and the second Transceiver Module 2, also comprise the transmission of baseband signal:
S401, the Transceiver Module that is connected in series mutually with Base Band Unit be from Base Band Unit receiving baseband signal, and the Transceiver Module not being connected in series mutually with Base Band Unit is successively by the upper level Transceiver Module that is connected in series mutually with the corresponding levels and until the Transceiver Module receiving baseband signal from being connected in series mutually with Base Band Unit.
S402, Transceiver Module at different levels are taken advantage of the down beam shaping coefficient of baseband signal and Transceiver Module at different levels after processing again, launch processing.
The signal processing method of the active antenna that embodiments of the invention provide, by integrated correction channel submodule in Transceiver Module, make to be connected in series mutually between two Transceiver Module and proofread and correct between two, when reducing design difficulty, improved the accuracy of channel correcting.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (16)
1. an active antenna, is characterized in that, comprising:
At least two Transceiver Module of series connection, each Transceiver Module comprises correction channel submodule, channel correcting higher level interface and channel correcting subordinate interface, for amplitude and/or the phasing of the signal between two Transceiver Module that are connected in series mutually;
Wherein, the channel correcting subordinate interface of the first Transceiver Module is connected with the channel correcting higher level interface of the second Transceiver Module, for described the first Transceiver Module, by described channel correcting subordinate interface, to described the second Transceiver Module, send the first test signal, described the first Transceiver Module receives by described channel correcting subordinate interface the second test signal that described the second Transceiver Module sends.
2. active antenna according to claim 1, is characterized in that, described correction channel submodule, comprises coupling interface, transmitter module and receiver module;
Described the first Transceiver Module also comprises the first transmitting-receiving submodule;
Described the second Transceiver Module also comprises the second transmitting-receiving submodule;
Described transmitter module, for sending described the first test signal by described coupling interface to described the first transmitting-receiving submodule, and sends the first test signal by described channel correcting subordinate's interface and described channel correcting higher level interface to receive path;
Described receiver module, the 3rd test signal sending for receive described the first transmitting-receiving submodule by described coupling interface, and receive by described channel correcting subordinate's interface and described channel correcting higher level interface described the second test signal that transmission channel sends.
3. active antenna according to claim 1 and 2, is characterized in that, also comprises:
Anneta module, is connected with described at least two Transceiver Module, for reception and the transmission of signal.
4. active antenna according to claim 3, is characterized in that, described each Transceiver Module also comprises signal transmission subordinate's interface and signal transmission higher level interface;
The signal transmission subordinate interface of described the first Transceiver Module is connected with the signal transmission higher level interface of described the second Transceiver Module, and the signal transmission higher level interface of signal transmission subordinate's interface of described the first Transceiver Module and described the second Transceiver Module is used for described the first Transceiver Module by the transmission of the signal between described the second Transceiver Module and Base Band Unit.
5. active antenna according to claim 3, it is characterized in that, described each Transceiver Module also comprises: power module, control cabling and power supply subordinate interface and control cabling and power supply higher level interface, for controlling and power to described Transceiver Module and described Anneta module; The control cabling of described the first Transceiver Module and power supply subordinate interface are connected with control cabling and the power supply higher level interface of described the second Transceiver Module, for described the first Transceiver Module, public module is provided control signal and electric energy be sent to described the second Transceiver Module.
6. active antenna according to claim 3, it is characterized in that, described Anneta module comprises the antenna submodule suitable with described Transceiver Module number, and described antenna submodule is independent of described Transceiver Module, or, be integrated in one with described Transceiver Module.
7. active antenna according to claim 3, is characterized in that, the channel correcting interface of described each Transceiver Module comprises:
Local oscillator interface and correction coupling interface; Wherein, described local oscillator interface, is connected with local oscillator or reference signal for described each Transceiver Module.
8. active antenna according to claim 1, is characterized in that, described each Transceiver Module comprises at least one transmitting-receiving submodule, the first wave beam forming unit and/or second wave beam forming unit:
Described at least one transmitting-receiving submodule, for receiving and transmitted signal;
Described the first wave beam forming unit, the baseband signal obtaining after the radiofrequency signal of reception being processed for each Transceiver Module baseband signal after the processing of upper level Transceiver Module that adds up again after taking advantage of again with the uplink beam forming coefficient of Transceiver Module at the corresponding levels, is sent to the Transceiver Module that next stage is connected in series mutually;
Described the second wave beam forming unit, the down beam shaping coefficient of received baseband signal and Transceiver Module at the corresponding levels is taken advantage of to processing again for each Transceiver Module, so that described each Transceiver Module is to pass through antenna transmission after radiofrequency signal by the Digital Signal Processing through wave beam forming.
9. active antenna according to claim 8, is characterized in that, when described each Transceiver Module comprises at least two transmitting-receiving submodules, described each Transceiver Module also comprises:
Transmitting-receiving submodule correcting circuit, comprises and described at least two chain correcting circuit or star-like calibration circuits that transmitting-receiving submodule is connected, for signal amplitude and/or the phasing between each transmitting-receiving submodule.
10. a base station system, is characterized in that, comprises according to the active antenna described in claim 1 to 9 any one.
The signal processing method of 11. 1 kinds of active antennas, is characterized in that, comprising:
The correction channel submodule of the first Transceiver Module sends the first test signal by coupling interface to the transmitting-receiving submodule of described the first Transceiver Module, and the channel correcting higher level interface of the second Transceiver Module being connected with interface He Yugai channel correcting subordinate of channel correcting subordinate interface by the first Transceiver Module sends described the first test signal to the transmitting-receiving submodule of described the second Transceiver Module; Wherein, described the second Transceiver Module is connected in series mutually with described the first Transceiver Module;
The transmitting-receiving submodule of described the first Transceiver Module and the transmitting-receiving submodule of described the second Transceiver Module are proofreaied and correct respectively amplitude and/or the phase difference of the receive path of self according to described the first test signal.
12. methods according to claim 11, it is characterized in that, amplitude and/or phase difference that the transmitting-receiving submodule of described the first Transceiver Module, the transmitting-receiving submodule of described the second Transceiver Module are proofreaied and correct respectively the receive path of self according to described the first test signal comprise:
The transmitting-receiving submodule of described the first Transceiver Module obtains the first amplitude and/or phase signal according to described the first test signal, and described the first amplitude and/or phase signal are sent to processor;
The transmitting-receiving submodule of described the second Transceiver Module obtains the second amplitude and/or phase signal according to described the first test signal, and described the first amplitude and/or phase signal are sent to described processor;
The transmitting-receiving submodule of described the first Transceiver Module and the transmitting-receiving submodule of described the second Transceiver Module receive amplitude and/or the phase difference of the described receive path of described processor transmission; To be described processor calculate according to described the first amplitude and/or phase signal and described the second amplitude and/or phase signal for the amplitude of described receive path and/or phase difference;
The transmitting-receiving submodule of described the first Transceiver Module and the transmitting-receiving submodule of described the second Transceiver Module are proofreaied and correct according to the amplitude of described receive path and/or phase difference.
13. according to the method described in claim 11 or 12, it is characterized in that, described method also comprises
Each Transceiver Module is by antenna reception radiofrequency signal and be processed into baseband signal;
Baseband signal the Transceiver Module reception & disposal being connected in series mutually from upper level; Baseband signal after the described processing signal that to be described upper level Transceiver Module obtain from the signal of antenna reception and the wave beam forming coefficient of upper level Transceiver Module are taken advantage of mutually again;
Each Transceiver Module is by the radiofrequency signal of reception and process the baseband signal after the described processing of the upper level Transceiver Module that adds up again after the baseband signal obtain is taken advantage of again with the uplink beam forming coefficient of Transceiver Module at the corresponding levels, and is sent to Transceiver Module that next stage is connected in series mutually until be sent to described Base Band Unit by the Transceiver Module being connected in series mutually with Base Band Unit.
The signal processing method of 14. 1 kinds of active antennas, is characterized in that, comprising:
The channel correcting higher level interface that the correction channel submodule of the first Transceiver Module receives by coupling interface the second Transceiver Module that the second test signal that the transmitting-receiving submodule of described the first Transceiver Module sends is connected with interface He Yugai channel correcting subordinate of channel correcting subordinate interface by the first Transceiver Module receives the 3rd test signal of the transmitting-receiving submodule transmission of the second Transceiver Module; Wherein, described the second Transceiver Module is connected in series mutually with described the first Transceiver Module;
The transmitting-receiving submodule of described the first Transceiver Module, the transmitting-receiving submodule of described the second Transceiver Module are proofreaied and correct respectively amplitude and/or the phase difference of the transmission channel of self according to described the second test signal and the 3rd test signal.
15. methods according to claim 14, it is characterized in that, amplitude and/or phase difference that the transmitting-receiving submodule of described the first Transceiver Module, the transmitting-receiving submodule of described the second Transceiver Module are proofreaied and correct respectively the receive path of self according to described the second test signal and the 3rd test signal comprise:
The correction channel submodule of described the first Transceiver Module obtains the 3rd amplitude and/or phase signal according to described the second testing signal process, and described the 3rd amplitude and/or phase signal are sent to processor;
The correction channel submodule of described the first Transceiver Module obtains the 4th amplitude and/or phase signal according to described the 3rd testing signal process, and described the 4th amplitude and/or phase signal are sent to processor;
The transmitting-receiving submodule of described the first Transceiver Module and the transmitting-receiving submodule of described the second Transceiver Module receive amplitude and/or the phase difference of transmission channel between described the first Transceiver Module that described processor sends and described the second Transceiver Module; Between described the first Transceiver Module and described the second Transceiver Module, to be described processor calculate according to described the 3rd amplitude and/or phase signal and described the 4th amplitude and/or phase signal for the amplitude of transmission channel and/or phase difference;
The transmitting-receiving submodule of described the first Transceiver Module and the transmitting-receiving submodule of described the second Transceiver Module are proofreaied and correct according to the amplitude of described transmission channel and/or phase difference.
16. according to the method described in claims 14 or 15, it is characterized in that, described method also comprises:
The Transceiver Module being connected in series mutually with Base Band Unit is from described Base Band Unit receiving baseband signal, and the Transceiver Module not being connected in series mutually with Base Band Unit is successively by the upper level Transceiver Module that is connected in series mutually with the corresponding levels and until the Transceiver Module receiving baseband signal from being connected in series mutually with Base Band Unit;
Transceiver Module at different levels are taken advantage of the down beam shaping coefficient of baseband signal and Transceiver Module at different levels after processing again, launch processing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110435753.1A CN102571175B (en) | 2011-12-22 | 2011-12-22 | Active antenna and signal processing method thereof |
| PCT/CN2012/087315 WO2013091581A1 (en) | 2011-12-22 | 2012-12-24 | Active aerial and signal processing method thereof |
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| CN201110435753.1A CN102571175B (en) | 2011-12-22 | 2011-12-22 | Active antenna and signal processing method thereof |
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| CN102571175B (en) * | 2011-12-22 | 2014-07-30 | 华为技术有限公司 | Active antenna and signal processing method thereof |
| CN202713297U (en) * | 2012-07-10 | 2013-01-30 | 华为技术有限公司 | Remote machine and repeater system |
| US10224642B2 (en) | 2014-06-03 | 2019-03-05 | Airrays Gmbh | Modular antenna system |
| WO2015184632A1 (en) * | 2014-06-06 | 2015-12-10 | 华为技术有限公司 | Method and device for jointly calibrating channel of plurality of active antenna |
| CN106877944B (en) * | 2015-12-10 | 2019-07-19 | 电信科学技术研究院 | A kind of active antenna equipment and its test method |
| CN106680601A (en) * | 2016-11-25 | 2017-05-17 | 上海华为技术有限公司 | Method for signal processing, active antenna and signal processing system |
| CN112583455B (en) * | 2019-09-29 | 2022-05-06 | 上海华为技术有限公司 | Signal processing method and base station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395436A (en) * | 2001-07-06 | 2003-02-05 | 上海大唐移动通信设备有限公司 | Radio-frequency cascade expanding method matched with large-capacity station type for radio receiving and transmitting machine and its device |
| CN1399846A (en) * | 1999-09-10 | 2003-02-26 | 阿茨达科姆公司 | Method and apparatus for calibrating smart antenna array |
| CN1418028A (en) * | 2001-11-06 | 2003-05-14 | 深圳市中兴通讯股份有限公司上海第二研究所 | Correction method and device of intelligent antenna subsystem |
| US7181205B1 (en) * | 2004-05-11 | 2007-02-20 | Rf Micro Devices, Inc. | I/Q calibration |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100399719C (en) * | 2005-02-03 | 2008-07-02 | 芯通科技（成都）有限公司 | Calibrating method for intelligent antenna array and radio frequency receiving-transmitting machine |
| WO2010121425A1 (en) * | 2009-04-22 | 2010-10-28 | 华为技术有限公司 | Calibration method and active antenna |
| CN102571175B (en) * | 2011-12-22 | 2014-07-30 | 华为技术有限公司 | Active antenna and signal processing method thereof |
-
2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399846A (en) * | 1999-09-10 | 2003-02-26 | 阿茨达科姆公司 | Method and apparatus for calibrating smart antenna array |
| CN1395436A (en) * | 2001-07-06 | 2003-02-05 | 上海大唐移动通信设备有限公司 | Radio-frequency cascade expanding method matched with large-capacity station type for radio receiving and transmitting machine and its device |
| CN1418028A (en) * | 2001-11-06 | 2003-05-14 | 深圳市中兴通讯股份有限公司上海第二研究所 | Correction method and device of intelligent antenna subsystem |
| US7181205B1 (en) * | 2004-05-11 | 2007-02-20 | Rf Micro Devices, Inc. | I/Q calibration |
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