CN102571175A - Active antenna and signal processing method thereof - Google Patents
Active antenna and signal processing method thereof Download PDFInfo
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- CN102571175A CN102571175A CN2011104357531A CN201110435753A CN102571175A CN 102571175 A CN102571175 A CN 102571175A CN 2011104357531 A CN2011104357531 A CN 2011104357531A CN 201110435753 A CN201110435753 A CN 201110435753A CN 102571175 A CN102571175 A CN 102571175A
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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; Connect through optical fiber between the two, its interface is based on open interface, can stably be connected with mainstream vendor's equipment.Baseband controller can be installed in suitable machine room position, and transceiver is installed in antenna end.
Active antenna is a kind of new base station form, is characterized in that transceiver and antenna array are integrated in the Anneta module.Antenna oscillator in the antenna array is driven by different transceivers, encourages the radiation areas and the radiation direction of change antenna mutually according to the width of cloth of transceiver.Active antenna makes the design of base station compact more, 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 the figuration control of wave beam easily.Active antenna inside can comprise on logic function: aerial array part, feeding network, transceiver array part, the channel correcting part then can have different designs on structure is formed.
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 received or sendaisle are designed to be coupled to correction channel through identical path.The chain bearing calibration then is connected in series to correction channel with different received or sendaisle after overcoupling.
But in the existing active antenna, because star-like correction need guarantee the cabling unanimity on circuit board, correcting circuit plate design difficulty is high; The standing wave that chain more than three grades is proofreaied and correct cascade channel superposes mutually, can produce between each frequency range to interfere with each other, and when standing-wave ratio was relatively poor, the poor accuracy of correction was proofreaied and correct accurately and need be guaranteed that then each branch road standing wave of connecting is good, has increased design difficulty.
Summary of the invention
The present invention provides the signal processing method of a kind of active antenna and active antenna, can improve the accuracy and reduction design difficulty of channel correcting.
On the one hand, a kind of active antenna is provided, comprises:
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, the amplitude and/or the phasing of the signal between two Transceiver Module that are used for being connected in series mutually;
Wherein, The channel correcting subordinate interface of first Transceiver Module is connected with the channel correcting higher level interface of second Transceiver Module; Be used for said first Transceiver Module and send first test signal through said channel correcting subordinate interface to said second Transceiver Module, said first Transceiver Module receives second test signal that said second Transceiver Module sends through said channel correcting subordinate interface.
On the other hand, a kind of signal processing method of active antenna is provided, comprises:
The correction channel submodule of first Transceiver Module sends first test signal through coupling interface to the transmitting-receiving submodule of said first Transceiver Module, and sends said first test signal through the channel correcting subordinate interface of first Transceiver Module and the channel correcting higher level interface of second Transceiver Module that links to each other with this channel correcting subordinate interface to the transmitting-receiving submodule of said second Transceiver Module; Wherein, said second Transceiver Module is connected in series with said first Transceiver Module mutually;
The transmitting-receiving submodule of said first Transceiver Module and the transmitting-receiving submodule of said second Transceiver Module are proofreaied and correct the amplitude and/or the phase difference of the receive path of self respectively according to said first test signal.
On the other hand, a kind of signal processing method of active antenna is provided, comprises:
The correction channel submodule of first Transceiver Module receives the 3rd test signal that second test signal that the transmitting-receiving submodule of said first Transceiver Module sends and the channel correcting higher level interface through the channel correcting subordinate interface of first Transceiver Module and second Transceiver Module that links to each other with this channel correcting subordinate interface receive the transmitting-receiving submodule transmission of second Transceiver Module through coupling interface; Wherein, said second Transceiver Module is connected in series with said first Transceiver Module mutually;
The transmitting-receiving submodule of said first Transceiver Module, the transmitting-receiving submodule of said second Transceiver Module are proofreaied and correct the amplitude and/or the phase difference of the transmission channel of self respectively according to said 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; Make mutually through integrated correction channel submodule in Transceiver Module between two Transceiver Module of serial connection and proofread and correct in twos, when reducing design difficulty, improved the accuracy of channel correcting.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The schematic block diagram one of a kind of active antenna that Fig. 1 provides for the embodiment of the invention;
The schematic block diagram two of a kind of active antenna that Fig. 2 provides for the embodiment of the invention;
The schematic block diagram three of a kind of active antenna that Fig. 3 provides for the embodiment of the invention;
The schematic block diagram four of a kind of active antenna that Fig. 4 provides for the embodiment of the invention;
The sketch map of a kind of Transceiver Module that Fig. 5 provides for the embodiment of the invention;
The sketch map of the another kind of Transceiver Module that Fig. 6 provides for the embodiment of the invention;
The connected mode sketch map of a kind of Transceiver Module that Fig. 7 provides for the embodiment of the invention;
The structural representation of a kind of active antenna that Fig. 8 provides for the embodiment of the invention;
The structural representation of the another kind of active antenna that Fig. 9 provides for the embodiment of the invention;
The sketch map one of the signal processing method of the active antenna that Figure 10 provides for the embodiment of the invention;
The sketch map two of the signal processing method of the active antenna that Figure 11 provides for the embodiment of the invention;
The sketch map of the chain calibration circuit that Figure 12 provides for the embodiment of the invention;
The baseband signal transfer process sketch map one that Figure 13 provides for the embodiment of the invention;
The baseband signal transfer process sketch map two that Figure 14 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
The active antenna 20 that the embodiment of the invention provides, as shown in Figure 1, comprise community antenna module 1, at least two Transceiver Module 2, power module 3, 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 comprises a group of received passage and a transmission channel at least; Correction channel submodule 22 is used for being connected in series mutually the amplitude and/or the phasing of two signals between the Transceiver Module.When transmitting-receiving submodule 21 comprised many group of received passage and transmission channel, Transceiver Module 2 also comprised transmitting-receiving submodule correcting circuit, is used for amplitude and/or phase alignment between each group of received passage, the transmission channel.
Through 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, when reducing design difficulty, have improved the accuracy of channel correcting.
As shown in Figure 5, Transceiver Module 2 can also comprise: signal transmission higher level interface 1a, the signal transmission interface 1b of subordinate are used for receiving baseband signal; Control cabling and power supply higher level interface 2a, control cabling and the interface 2b of power supply subordinate are used to connect power module 3 and CPU control; Channel correcting higher level interface 3a, the interface 3b of channel correcting subordinate proofreaies and correct between two Transceiver Module that are used for being connected in series mutually in twos.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 are used for each Transceiver Module and connect same local oscillator, proofread and correct coupling interface 3a2,3b2 and are used to connect and are connected in series two correction channel submodules 22 among the Transceiver Module 2 mutually.
Further as shown in Figure 2, Transceiver Module 2 can also comprise:
The first wave beam forming unit 24; Add up again after the baseband signal that is used for obtaining after each Transceiver Module will receive and handle and the uplink beam forming coefficient of Transceiver Module at the corresponding levels are taken advantage of again baseband signal after the said 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 is used for said armed baseband signal and said down beam shaping coefficient are taken advantage of processing again, so that said each Transceiver Module is simultaneously through the antenna emission.
It is pointed out that wave beam forming carries out at numeric field usually.The signal of taking advantage of again with the uplink beam forming coefficient also can be a digital intermediate frequency signal; The baseband signal that the signal that adds up converts into for the digital intermediate frequency signal of taking advantage of again through the uplink beam forming coefficient; The signal of taking advantage of again with the down beam shaping coefficient also can be a digital intermediate frequency signal, and this digital intermediate frequency signal is that armed baseband signal conversion comes.
Like this, baseband signal can be transmitted through the Transceiver Module of serial connection, can be more convenient increase and decrease Transceiver Module according to the actual requirements, improved the extensibility of active antenna.
Concrete connected mode is 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 the 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 as the active antenna that connects; Comprise community antenna module 1, at least two Transceiver Module 2 and power modules 3; Like this; Correction channel submodule through first transceiver draws first transceiver and second transceiver and receives amplitude and/or phase difference with transmission channel, and this amplitude and/or phase difference are amplitude and/or the phase difference of second transceiver reception with respect to first transceiver, behind this amplitude and/or phase difference correction; Second transceiver is the same with the transmission channel parameter with the reception of first transceiver; In like manner, after the amplitude and/or phase difference of the correction of the 3rd transceiver and second transceiver, just the same with the reception and the transmission channel parameter of first transceiver, second transceiver; Be equivalent to proofread and correct as standard with the reception and the transmission channel parameter of first transceiver; Make to be connected in series mutually between two Transceiver Module through integrated correction channel submodule in Transceiver Module like this and proofread and correct in twos, reduced between each frequency range and can generation interfere with each other thereby reduced the standing wave stack, and series connection transmission between each Transceiver Module; Do not need backboard, be easy to expand the quantity of Transceiver Module like this.
The active antenna that embodiments of the invention provide; Through integrated correction channel submodule in Transceiver Module, increase channel correcting higher level's interface and subordinate's interface and make to be connected in series mutually between two Transceiver Module and proofread and correct in twos, when reducing design difficulty, improved the accuracy of channel correcting.And can be further, through the integrated 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 two
The active antenna 30 that the embodiment of the invention provides, as shown in Figure 3, comprise at least two Transceiver Module 2 and power module 3, each Transceiver Module 2 is connected with power module 3.
Wherein, Transceiver Module 2 comprises: transmitting-receiving submodule 21, and its inside comprises a group of received passage and a transmission channel at least; Correction channel submodule 22 is used for being connected in series mutually two signal amplitude and/or phasings between the Transceiver Module; Independently Anneta module 23, are used for receiving and sending signal; When transmitting-receiving submodule 21 comprised many group of received passage and transmission channel, Transceiver Module 2 can also comprise transmitting-receiving submodule correcting circuit, is used for amplitude and/or phase alignment between each group of received passage, the transmission channel.
Through 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, when reducing design difficulty, have improved the accuracy of channel correcting.
As shown in Figure 6, Transceiver Module 2 also comprises: Anneta module is used for receiving or sending signal; Higher level's interface 1a, the signal transmission interface 1b of subordinate are used to connect baseband signal; Control cabling and power supply higher level interface 2a, control cabling and the interface 2b of power supply subordinate are used to connect power module 3 and CPU control; Channel correcting higher level interface 3a, the interface 3b of channel correcting subordinate is used for being connected in series mutually between two transceiver modules 2 and proofreaies and correct in twos.Wherein, Channel correcting higher level interface 3a comprises local oscillator higher level interface 3a1 and proofreaies 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 are used for each Transceiver Module and connect same local oscillator, proofread and correct coupling interface 3a2,3b2 and are used to connect and are connected in series two correction channel submodules 22 among the Transceiver Module 2 mutually.
Further, as shown in Figure 4, Transceiver Module 2 can also comprise:
The first wave beam forming unit 24; Add up again after the signal that is used for obtaining after each Transceiver Module will receive and handle and the uplink beam forming coefficient of Transceiver Module at the corresponding levels are taken advantage of again baseband signal after the said 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 is used for transmitting and said down beam shaping coefficient is taken advantage of processing again said, so that said each Transceiver Module is simultaneously through the antenna emission.
It is pointed out that wave beam forming carries out at numeric field usually.The signal of taking advantage of again with the uplink beam forming coefficient also can be a digital intermediate frequency signal; The baseband signal that the signal that adds up converts into for the digital intermediate frequency signal of taking advantage of again through the uplink beam forming coefficient; The signal of taking advantage of again with the down beam shaping coefficient also can be a digital intermediate frequency signal, and this digital intermediate frequency signal is that armed baseband signal conversion comes.
Like this, baseband signal can be transmitted through the Transceiver Module of serial connection, can be more convenient increase and decrease Transceiver Module according to the actual requirements, improved the extensibility of active antenna.
The concrete connected mode and the embodiment one that are connected in series mutually between the Transceiver Module in the present embodiment are just the same, repeat no more.
Be illustrated in figure 9 as the active antenna that connects; Comprise community antenna module 1, at least two Transceiver Module 2 and power modules 3; Like this; Correction channel submodule through first transceiver draws first transceiver and second transceiver and receives amplitude and/or phase difference with transmission channel, and this amplitude and/or phase difference are amplitude and/or the phase difference of second transceiver reception with respect to first transceiver, behind this amplitude and/or phase difference correction; The reception of second transceiver and first transceiver and transmission channel parameter are just the same; In like manner, after the amplitude and/or phase difference of the correction of the 3rd transceiver and second transceiver, just the same with the reception and the transmission channel parameter of first transceiver, second transceiver; Be equivalent to proofread and correct as standard with the reception and the transmission channel parameter of first transceiver; Make to be connected in series mutually between two Transceiver Module through integrated correction channel submodule in Transceiver Module like this and proofread and correct in twos, reduced between each frequency range and can generation interfere with each other thereby reduced the standing wave stack, and series connection transmission between each Transceiver Module; Do not need backboard, be easy to expand the quantity of Transceiver Module like this.
The active antenna that embodiments of the invention provide makes to be connected in series mutually between two Transceiver Module through integrated correction channel submodule in Transceiver Module and proofreaies and correct in twos, when reducing design difficulty, has improved the accuracy of channel correcting.
Embodiments of the invention also comprise base station system, and it comprises any one active antenna of mentioning in the embodiment of the invention.
Embodiment three
The signal processing method of the active antenna that the embodiment of the invention provides, shown in figure 10, comprising:
The correction channel submodule of S101, first Transceiver Module sends first test signal through coupling interface to the transmitting-receiving submodule of first Transceiver Module, and sends first test signal through the channel correcting subordinate interface of first Transceiver Module and the channel correcting higher level interface of second Transceiver Module that links to each other with this channel correcting subordinate interface to the transmitting-receiving submodule of second Transceiver Module; Wherein, second Transceiver Module is connected in series with first Transceiver Module mutually.
The transmitting-receiving submodule of S102, first Transceiver Module and the transmitting-receiving submodule of second Transceiver Module are proofreaied and correct the amplitude and/or the phase difference of the receive path of self respectively according to first test signal.
The signal processing method of the active antenna that embodiments of the invention provide; Make to be connected in series mutually between two Transceiver Module through integrated correction channel submodule in Transceiver Module and proofread and correct in twos, when reducing design difficulty, improved the accuracy of channel correcting.
Embodiment four
The signal processing method of the active antenna that the embodiment of the invention provides, shown in figure 12, be example with two of Transceiver Module that are connected in series mutually, comprising:
The correction channel submodule 12 of first Transceiver Module 1 sends first test signal through coupling interface to the transmitting-receiving submodule 11 of first Transceiver Module 1, with channel correcting higher level interface through the channel correcting subordinate interface of first Transceiver Module 1 and second Transceiver Module 2 that links to each other with this channel correcting subordinate interface transmitting-receiving submodule 21 transmissions first test signal to second Transceiver Module 2; Wherein, second Transceiver Module 2 is connected in series with first Transceiver Module 1 mutually.
Obtain first amplitude and/or phase signal A after 11 pairs first test signals of the transmitting-receiving submodule of first Transceiver Module 1 are handled, and A is sent to processor.
Obtain first amplitude and/or phase signal B after 21 pairs first test signals of the transmitting-receiving submodule of second Transceiver Module 2 are handled, and B is sent to processor.
After processor receives A and B; Calculate the amplitude and/or the phase difference of the receive path of first Transceiver Module 1 and second Transceiver Module 2 according to formula TRX1=TRX2+S12+A and formula TRX2=B-S21-TRX1; Wherein TRX1 and TRX2 are respectively the amplitude and/or the phase place of first Transceiver Module 1 and second Transceiver Module 2; S12 and S21 are the transfer function between first Transceiver Module 1 and second Transceiver Module 2; Be connected in series between two Transceiver Module method of correcting in twos mutually because adopt, the phase mutual interference between each Transceiver Module is very little, is approximately zero.Therefore, transfer function S12 between first Transceiver Module 1 and second Transceiver Module 2 and S21 equate, so the amplitude of the receive path of first Transceiver Module 1 and second Transceiver Module 2 and/or phase difference are (A+B)/2.
The transmitting-receiving submodule 11 that processor is sent to first Transceiver Module 1 respectively with the amplitude and/or the phase difference of above-mentioned receive path and the transmitting-receiving submodule 21 of second Transceiver Module 2 are so that the transmitting-receiving submodule 21 of the transmitting-receiving submodule 11 of first Transceiver Module 1 and second Transceiver Module 2 is proofreaied and correct the receive path of self respectively according to the amplitude and/or the phase difference of above-mentioned receive path.
Further, shown in figure 13,, the receive path of first Transceiver Module 1 and second Transceiver Module 2 also comprises the transmission of baseband signal after proofreading and correct:
S301, each Transceiver Module is through the antenna received RF signal and be processed into baseband signal;
S302, the Transceiver Module that is connected in series mutually from upper level receive the baseband signal after handling; Wherein, the signal that obtains after the wave beam forming coefficient of signal that to be the upper level Transceiver Module receive from antenna of the baseband signal after the processing and upper level Transceiver Module is taken advantage of mutually again;
S303, each Transceiver Module be with the radiofrequency signal that receives and the uplink beam forming coefficient of handling the baseband signal that obtains and the Transceiver Module at the corresponding levels baseband signal after the processing of upper level Transceiver Module that adds up again after taking advantage of again, and be sent to Transceiver Module that next stage is connected in series mutually until through being sent to Base Band Unit with Transceiver Module that Base Band Unit is connected in series mutually.
The signal processing method of the active antenna that embodiments of the invention provide; Make to be connected in series mutually between two Transceiver Module through integrated correction channel submodule in Transceiver Module and proofread and correct in twos, 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 invention provides, shown in figure 11, comprising:
The correction channel submodule of S201, first Transceiver Module receives the 3rd test signal that second test signal that the transmitting-receiving submodule of first Transceiver Module sends and the channel correcting higher level interface through the channel correcting subordinate interface of first Transceiver Module and second Transceiver Module that links to each other with this channel correcting subordinate interface receive the transmitting-receiving submodule transmission of second Transceiver Module through coupling interface; Wherein, second Transceiver Module is connected in series with first Transceiver Module mutually.
The transmitting-receiving submodule of S201, first Transceiver Module, the transmitting-receiving submodule of second Transceiver Module are proofreaied and correct the amplitude and/or the phase difference of the transmission channel of self respectively according to second test signal and the 3rd test signal.
The signal processing method of the active antenna that embodiments of the invention provide; Make to be connected in series mutually between two Transceiver Module through integrated correction channel submodule in Transceiver Module and proofread and correct in twos, 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 invention provides, shown in figure 12, be example with two of Transceiver Module that are connected in series mutually, comprising:
The correction channel submodule 12 of first Transceiver Module 1 receives the 3rd test signal that second test signal that the transmitting-receiving submodule 11 of first Transceiver Module 1 sends and the channel correcting higher level interface through the channel correcting subordinate interface of first Transceiver Module 1 and second Transceiver Module 2 that links to each other with this channel correcting subordinate interface receive transmitting-receiving submodule 21 transmissions of second Transceiver Module 2 through coupling interface; Wherein, second Transceiver Module 2 is connected in series with first Transceiver Module 1 mutually.
The correction channel submodule 12 of first Transceiver Module 1 receive second test signal that the transmitting-receiving submodule 11 of first Transceiver Module 1 sends and handle after obtain the 3rd amplitude and/or phase signal C, and C is sent to processor.
The correction channel submodule 12 of first Transceiver Module 1 receive the 3rd test signal that the transmitting-receiving submodule 21 of second Transceiver Module 2 sends and handle after obtain the 4th amplitude and/or phase signal D, and D is sent to processor.
After processor receives C and D; Calculate the amplitude and/or the phase difference of the transmission channel of first Transceiver Module 1 and second Transceiver Module 2 according to formula TRX1=TRX2+S12+C and formula TRX2=D-S21-TRX1; Wherein TRX1 and TRX2 are respectively the amplitude and/or the phase place of first Transceiver Module 1 and second Transceiver Module 2; S12 and S21 are the transfer function between first Transceiver Module 1 and second Transceiver Module 2; Be connected in series between two Transceiver Module method of correcting in twos mutually because adopt, the phase mutual interference between each Transceiver Module is very little, is approximately zero.Therefore, transfer function S12 between first Transceiver Module 1 and second Transceiver Module 2 and S21 equate, so the amplitude of the transmission channel of first Transceiver Module 1 and second Transceiver Module 2 and/or phase difference are (A+B)/2.
The transmitting-receiving submodule 11 that processor is sent to first Transceiver Module 1 respectively with the amplitude and/or the phase difference of above-mentioned transmission channel and the transmitting-receiving submodule 21 of second Transceiver Module 2 are so that the transmitting-receiving submodule 21 of the transmitting-receiving submodule 11 of first Transceiver Module 1 and second Transceiver Module 2 is proofreaied and correct the transmission channel of self respectively according to the amplitude and/or the phase difference of above-mentioned transmission channel.
Further, shown in figure 14, behind the transmitting channel correction of first Transceiver Module 1 and 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 the Base Band Unit receiving baseband signal, and the Transceiver Module that is not connected in series mutually with Base Band Unit is successively through 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 launched processing after the down beam shaping coefficient of baseband signal and Transceiver Module at different levels is taken advantage of processing again.
The signal processing method of the active antenna that embodiments of the invention provide; Make to be connected in series mutually between two Transceiver Module through integrated correction channel submodule in Transceiver Module and proofread and correct in twos, when reducing design difficulty, improved the accuracy of channel correcting.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said 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, the amplitude and/or the phasing of the signal between two Transceiver Module that are used for being connected in series mutually;
Wherein, The channel correcting subordinate interface of first Transceiver Module is connected with the channel correcting higher level interface of second Transceiver Module; Be used for said first Transceiver Module and send first test signal through said channel correcting subordinate interface to said second Transceiver Module, said first Transceiver Module receives second test signal that said second Transceiver Module sends through said channel correcting subordinate interface.
2. active antenna according to claim 1 is characterized in that, said correction channel submodule comprises coupling interface, transmitter module and receiver module;
Said first Transceiver Module also comprises the first transmitting-receiving submodule;
Said second Transceiver Module also comprises the second transmitting-receiving submodule;
Said transmitter module is used for sending said first test signal through said coupling interface to the said first transmitting-receiving submodule, and sends first test signal through said channel correcting subordinate's interface and said channel correcting higher level interface to said second receive path;
Said receiver module; Be used for receiving the 3rd test signal that the said first transmitting-receiving submodule sends, and receive said second test signal that said second transmission channel sends through said channel correcting subordinate's interface and said channel correcting higher level interface through said coupling interface.
3. active antenna according to claim 1 and 2 is characterized in that, also comprises:
Anneta module is connected with said two Transceiver Module at least, is used for the reception and the transmission of signal.
4. active antenna according to claim 3 is characterized in that, said each Transceiver Module also comprises signal transmission subordinate's interface and signal transmission higher level interface;
The signal transmission subordinate interface of said first Transceiver Module is connected with the signal transmission higher level interface of said second Transceiver Module, and the signal transmission higher level interface of signal transmission subordinate's interface of said first Transceiver Module and said second Transceiver Module is used for the transmission of said first Transceiver Module through the signal between said second Transceiver Module and the Base Band Unit.
5. active antenna according to claim 3; It is characterized in that; Said each Transceiver Module also comprises: power module, control cabling and power supply subordinate interface and control cabling and power supply higher level interface are used for controlling and supplying power to said Transceiver Module and said Anneta module; The control cabling of said first Transceiver Module and power supply subordinate interface are connected with the control cabling and the power supply higher level interface of said second Transceiver Module, be used for said first Transceiver Module with public module provide control signal and electric energy be sent to said second Transceiver Module.
6. active antenna according to claim 3; It is characterized in that said Anneta module comprises the antenna submodule suitable with said Transceiver Module number, said antenna submodule is independent of said Transceiver Module; Perhaps, be integrated in one with said Transceiver Module.
7. active antenna according to claim 3 is characterized in that, the channel correcting interface of said each Transceiver Module comprises:
Local oscillator interface and correction coupling interface; Wherein, said local oscillator interface is used for said each Transceiver Module and is connected with local oscillator or reference signal.
8. active antenna according to claim 1 is characterized in that, said each Transceiver Module comprises at least one transmitting-receiving submodule, the first wave beam forming unit and/or second wave beam forming unit:
Said at least one transmitting-receiving submodule is used for receiving and sending signal.
The said first wave beam forming unit; Add up again after the baseband signal that is used for obtaining after each Transceiver Module is handled the radiofrequency signal that receives and the uplink beam forming coefficient of Transceiver Module at the corresponding levels are taken advantage of again baseband signal after the processing of upper level Transceiver Module is sent to the Transceiver Module that next stage is connected in series mutually;
The said second wave beam forming unit; Being used for each Transceiver Module the down beam shaping coefficient of baseband signal that is received and Transceiver Module at the corresponding levels is taken advantage of processing again, is through the antenna emission after the radiofrequency signal so that said each Transceiver Module will pass through the Digital Signal Processing of wave beam forming.
9. active antenna according to claim 8 is characterized in that, when said each Transceiver Module comprised at least two transmitting-receiving submodules, said each Transceiver Module also comprised:
Transmitting-receiving submodule correcting circuit comprises and said two chain correcting circuit or star-like calibration circuits that the transmitting-receiving submodule is connected at least, is used for signal amplitude and/or phasing between each transmitting-receiving submodule.
10. a base station system is characterized in that, comprises according to any described active antenna of claim 1 to 9.
11. the signal processing method of an active antenna is characterized in that, comprising:
The correction channel submodule of first Transceiver Module sends first test signal through coupling interface to the transmitting-receiving submodule of said first Transceiver Module, and sends said first test signal through the channel correcting subordinate interface of first Transceiver Module and the channel correcting higher level interface of second Transceiver Module that links to each other with this channel correcting subordinate interface to the transmitting-receiving submodule of said second Transceiver Module; Wherein, said second Transceiver Module is connected in series with said first Transceiver Module mutually;
The transmitting-receiving submodule of said first Transceiver Module and the transmitting-receiving submodule of said second Transceiver Module are proofreaied and correct the amplitude and/or the phase difference of the receive path of self respectively according to said first test signal.
12. method according to claim 11; It is characterized in that amplitude and/or phase difference that the transmitting-receiving submodule of said first Transceiver Module, the transmitting-receiving submodule of said second Transceiver Module are proofreaied and correct the receive path of self respectively according to said first test signal comprise:
The transmitting-receiving submodule of said first Transceiver Module obtains first amplitude and/or phase signal according to said first test signal, and said first amplitude and/or phase signal are sent to processor;
The transmitting-receiving submodule of said second Transceiver Module obtains second amplitude and/or phase signal according to said first test signal, and said first amplitude and/or phase signal are sent to said processor;
The transmitting-receiving submodule of said first Transceiver Module and the transmitting-receiving submodule of said second Transceiver Module receive the amplitude and/or the phase difference of the said receive path of said processor transmission; To be said processor calculate according to said first amplitude and/or phase signal and said second amplitude and/or phase signal for the amplitude of said receive path and/or phase difference;
The transmitting-receiving submodule of said first Transceiver Module and the transmitting-receiving submodule of said second Transceiver Module are proofreaied and correct according to the amplitude and/or the phase difference of said receive path.
13., it is characterized in that said method also comprises according to claim 11 or 12 described methods
Each Transceiver Module is through the antenna received RF signal and be processed into baseband signal;
The Transceiver Module that is connected in series mutually from upper level receives the baseband signal after handling; The signal that obtains after the wave beam forming coefficient of signal that to be said upper level Transceiver Module receive from antenna of the baseband signal after the said processing and upper level Transceiver Module is taken advantage of mutually again;
Each Transceiver Module is with the radiofrequency signal that receives and the uplink beam forming coefficient of handling the baseband signal that obtains and the Transceiver Module at the corresponding levels baseband signal after the said processing of upper level Transceiver Module that adds up again after taking advantage of again, and is sent to Transceiver Module that next stage is connected in series mutually until through being sent to said Base Band Unit with Transceiver Module that Base Band Unit is connected in series mutually.
14. the signal processing method of an active antenna is characterized in that, comprising:
The correction channel submodule of first Transceiver Module receives the 3rd test signal that second test signal that the transmitting-receiving submodule of said first Transceiver Module sends and the channel correcting higher level interface through the channel correcting subordinate interface of first Transceiver Module and second Transceiver Module that links to each other with this channel correcting subordinate interface receive the transmitting-receiving submodule transmission of second Transceiver Module through coupling interface; Wherein, said second Transceiver Module is connected in series with said first Transceiver Module mutually;
The transmitting-receiving submodule of said first Transceiver Module, the transmitting-receiving submodule of said second Transceiver Module are proofreaied and correct the amplitude and/or the phase difference of the transmission channel of self respectively according to said second test signal and the 3rd test signal.
15. method according to claim 14; It is characterized in that amplitude and/or phase difference that the transmitting-receiving submodule of said first Transceiver Module, the transmitting-receiving submodule of said second Transceiver Module are proofreaied and correct the receive path of self respectively according to said second test signal and the 3rd test signal comprise:
The correction channel submodule of said first Transceiver Module is handled according to said second test signal and is obtained the 3rd amplitude and/or phase signal, and said the 3rd amplitude and/or phase signal are sent to processor;
The correction channel submodule of said first Transceiver Module is handled according to said the 3rd test signal and is obtained the 4th amplitude and/or phase signal, and said the 4th amplitude and/or phase signal are sent to processor;
Amplitude and/or phase difference that the transmitting-receiving submodule of said first Transceiver Module and the transmitting-receiving submodule of said second Transceiver Module receive transmission channel between said first Transceiver Module that said processor sends and said second Transceiver Module arrive; To be said processor calculate according to said the 3rd amplitude and/or phase signal and said the 4th amplitude and/or phase signal for the amplitude of transmission channel and/or phase difference between said first Transceiver Module and said second Transceiver Module;
The transmitting-receiving submodule of said first Transceiver Module and the transmitting-receiving submodule of said second Transceiver Module are proofreaied and correct according to the amplitude and/or the phase difference of said transmission channel.
16., it is characterized in that said method also comprises according to claim 14 or 15 described methods:
The Transceiver Module that is connected in series mutually with Base Band Unit is from said Base Band Unit receiving baseband signal, and the Transceiver Module that is not connected in series mutually with Base Band Unit is successively through 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 launched processing after the down beam shaping coefficient of baseband signal and Transceiver Module at different levels is taken advantage of processing again.
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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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091581A1 (en) * | 2011-12-22 | 2013-06-27 | 华为技术有限公司 | Active aerial and signal processing method thereof |
| WO2014008801A1 (en) * | 2012-07-10 | 2014-01-16 | 华为技术有限公司 | Remote machine and repeater 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 |
| 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 |
| CN106877944A (en) * | 2015-12-10 | 2017-06-20 | 电信科学技术研究院 | A kind of active antenna equipment and its method of testing |
| CN112583455A (en) * | 2019-09-29 | 2021-03-30 | 上海华为技术有限公司 | Signal processing method and base station |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106463821B (en) | 2014-06-04 | 2019-10-18 | 艾赖斯股份有限公司 | The method of modularization antenna system and signal processing |
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 |
| CN102326293B (en) * | 2009-04-22 | 2013-08-07 | 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
- 2011-12-22 CN CN201110435753.1A patent/CN102571175B/en active Active
-
2012
- 2012-12-24 WO PCT/CN2012/087315 patent/WO2013091581A1/en active Application Filing
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 |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091581A1 (en) * | 2011-12-22 | 2013-06-27 | 华为技术有限公司 | Active aerial and signal processing method thereof |
| WO2014008801A1 (en) * | 2012-07-10 | 2014-01-16 | 华为技术有限公司 | Remote machine and repeater 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 |
| CN105379014A (en) * | 2014-06-06 | 2016-03-02 | 华为技术有限公司 | Method and device for jointly calibrating channel of plurality of active antenna |
| CN105379014B (en) * | 2014-06-06 | 2018-04-10 | 华为技术有限公司 | The channel combined bearing calibration of multiple active antennas and device |
| CN106877944A (en) * | 2015-12-10 | 2017-06-20 | 电信科学技术研究院 | A kind of active antenna equipment and its method of testing |
| 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 |
| US10536227B2 (en) | 2015-12-10 | 2020-01-14 | China Academy Of Telecommunications Technology | Active antenna device and test method therefor |
| 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 |
| CN112583455A (en) * | 2019-09-29 | 2021-03-30 | 上海华为技术有限公司 | Signal processing method and base station |
| CN112583455B (en) * | 2019-09-29 | 2022-05-06 | 上海华为技术有限公司 | Signal processing method and base station |
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|---|---|
| WO2013091581A1 (en) | 2013-06-27 |
| CN102571175B (en) | 2014-07-30 |
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